Abstract: A multi-point latching system is adapted for mounting on a panel and securing the panel to a frame. The system includes a central latch, remote latches and connecting rods. The central latch includes a housing and a handle assembly pivotably mounted in the housing for rotation about an axis parallel to the panel for opening and closing the central latch. The handle assembly extends through the housing and includes a handle and a pivot arm. The pivot arm extends from the back of the housing. The central latch also includes an actuator pivotably mounted for rotation normal to the panel; and a link connecting the handle assembly to one of the connecting rods, which is also connected to the actuator, such that the actuator is rotated by rotating the handle assembly. The remote latches are engaged by rotation of the actuator plate through the connecting rods.

Abstract: A security door assembly or locking mechanism for securing a single door in locking engagement with an adjacent door jamb structure comprises a first elongate metal blade to be received by a matching elongate groove in a vertical edge of a door. A second elongate metal blade is received by a matching groove in an upper horizontal edge of the door. Mechanical devices are provided for moving said blades partially from the grooves in the door into engagement with receiving grooves in the adjacent door jamb structure to lock the door. The vertical and horizontal blades are coupled together by a linkage mechanism which enables both blades to be operated simultaneously upon actuation of a single lever or knob. The blades and the linkage mechanism are mounted in an L-shaped housing inserted into grooves formed in adjacent edges of the door. Elongate metal strips are provided to be mounted over the grooves in the door jamb.

Abstract: A three point lock mechanism includes a lower deadbolt which respectively engage the threshold and lintel of a door or other hinged panel, in addition to the central jamb deadbolt. The mechanism utilizes a conventional deadbolt lock set for the central jamb deadbolt, with a generally circular plate being attached to the lock set to rotate therewith when the lock is turned to lock or unlock the door. An upper and a lower deadbolt actuation rod extend from the plate, and serve to actuate respectively the upper and lower deadbolts of the system by a pivoting actuator at each deadbolt. The two rods are pivotally secured to the plate 135 degrees from one another, in order to provide an overcenter weight bias of the rods to urge the upper and lower deadbolts to a retracted position when retracted, and to an extended position when extended.

Abstract: This invention add bolts to a cylinder deadbolt lock, to provide extra security to an entrance door from external assault. Bolts added and the cylinder deadbolt lock are interlocked with an interface mechanism, which allow to move simultaneously, the bolts added and bolt of said cylinder deadbolt lock when the latter is actuated, to open or close, with a key from the external side of the door, or with thumb turn or key from the interior side of said door. Bolts added, lock top corner of said door to a clamp on horizontal top corner of door frame, and the bottom corner of said door to a hole in the floor. This device is installed externally on the interior side of said door, to resist a kicking from a force coming from the exterior side, and also for easy installation. This device can be installed on single or double doors.

Abstract: A locking system for a window sash comprises a lock handle assembly, reciprocating rod members connected to the lock handle assembly, and rotatable cam assemblies connected to the rod members. Each cam assembly has a cam element which upon reciprocation of its respective rod element moves into and out of a cam keeper which is mounted on an adjacent window sash. Each rod member has a rod tip which moves into and out of a channel provided in the window frame. In a first operation of the lock handle assembly, the rod members are reciprocated inwardly to rotate the cam elements out of their respective cam keeper and to move the rod tips partially out of the frame channels which allows the window sash to be moved vertically within the channels. A further operation of the lock handle assembly moves the rod tips entirely out of the channels to allow the window sash to be tilted.

Abstract: A door locking mechanism is disclosed including a door locking member in communication with a lock-actuated bolt which selectively allows rotation of a rotatable actuator plate member. The rotating actuator plate member is attached to a rotatable handle and to a plurality of actuator bars which move locking bolts so as to selectively prevent opening of the door. The rotatable actuator plate member enables all of the actuators to be moved from a single location so that a plurality of cams, etc., are not needed to move locking bolts positioned about the perimeter of the door between open and locking positions. In an additional aspect of the invention, horizontally extending actuator bars are adjustably attached to elongate locking bars having a plurality of locking bolts attached thereto, so as to enable assembly of the locking structures of the door locking mechanism without assembly, and to enable interchangeability of parts.

Abstract: A lock for a door or the like having a dead lock assembly which comprises a bolt (41) and a drive mechanism (53, 54) adapted to be operated by a key, wherein the drive mechanism comprises a driving link (46), arranged to be driven by a lever (54) actuated by the key and arranged in turn to drive the bolt, and means (56) for transferring the drive from the driving link (46) to the bolt (41) in such a manner that the movement or throw of the bolt is increased relative to the displacement of the driving link (46).

Abstract: An interconnected lock assembly for use on a door includes a latch mechanism for positioning in a first bore in a door. There is an outside operating member connected to the latch mechanism for causing operation thereof and there is an inside operating member connected to the latch mechanism for causing operation thereof. A deadbolt mechanism is mounted in a second bore in the door, which second bore is spaced from the first bore. The deadbolt mechanism has a deadbolt which is automatically movable to an extended position when a portion of the deadbolt mechanism contacts a door strike. The deadbolt mechanism includes a swivel and there is a spindle in engagement with the swivel for retracting the deadbolt. An interconnected assembly connects the inside operating member and the spindle whereby movement of the inside operating member both operates the latch mechanism and moves the deadbolt to a retracted position.

Abstract: A lock assembly for locking and unlocking a door comprising a lock bar moveable between a locked and unlocked position, three locks, each of which have lock arms moveable between a locked and an unlocked position, and a linkage connecting the lock arms to the lock bar. The linkage has a first operating configuration whereby the lock bar moves from its locked to its unlocked position in response to the movement of any pair of lock arms from their locked to their unlocked position. The linkage also has a second operating configuration whereby the lock bar moves from its locked to its unlocked position in response to either movement by a predetermined pair of lock arms from their locked to unlocked position or the movement of the third lock arm from its locked to unlocked position.

Abstract: A security door assembly or locking mechanism for securing a single door in locking engagement with an adjacent door jamb structure comprises a first elongate metal blade to be received by a matching elongate groove in a vertical edge of a door. A second elongate metal blade is received by a matching groove in an upper horizontal edge of the door. Mechanical devices are provided for moving said blades partially from the grooves in the door into engagement with receiving grooves in the adjacent door jamb structure to lock the door. The vertical and horizontal blades are coupled together by a linkage mechanism which enables both blades to be operated simultaneously upon actuation of a single lever or knob. The blades and the linkage mechanism are mounted in an L-shaped housing inserted into grooves formed in adjacent edges of the door. Elongate metal strips are provided to be mounted over the grooves in the door jamb.

Abstract: A shoot bolt mechanism includes a casing having a front wall and a rear wall. The casing contains a shoot bolt having opposed ends and slidable between an inoperative and an operative position. A rotatable drive member is mounted in the casing adjacent the casing rear wall. A link is pivotally connected at one end to the shoot bolt and at another end to the drive member at a point eccentric from an axis of rotation of the drive member. Rotation of the drive member is translated by the link into movement of the shoot bolt between retracted and extended positions. Two drive transfer members are disposed on respective opposite sides of the shoot bolt between opposed ends thereof when the shoot bolt is in the retracted position. Rotation of the drive member moves the drive transfer members between respective retracted and extended positions in directions generally normal to the direction of movement of the shoot bolt between its retracted and extended positions.

Abstract: An automotive vehicle with a vehicle body surrounding a storage area and a storage surface has a bumper with a concealable step side and a fascia side. The bumper is mounted to the vehicle for movement between a fascia position and a step position. In the fascia position, the fascia side is substantially vertical and rearwardly facing, and the step side is substantially concealed from view with respect to the vehicle body. In the step position, the step side is presented substantially horizontal and vertically below the storage area surface to permit step access to the storage surface. The bumper is releasably latched to the vehicle when in the fascia position.

Abstract: A novel, rapid assembly secure burglar resistant building construction. More particularly, this invention pertains to a unique and inexpensive prefabricated building which is constructed of unique wall panels, floor and roof truss systems, secure locking doors and secure locking windows. A building construction comprising: (a) a foundation; (b) a roof; and (c) a wall extending from the foundation to the roof, wall being constructed of an interior corrugated metal sheet, insulation covering both sides of the metal sheet, a wall covering on an interior surface of the insulation and a wall covering on the exterior surface of the insulation.

Abstract: A dead bolt actuating assembly capable of moving a dead bolt between a retracted position and an extended position includes a latch arm having an end portion mounted on a rotating shaft. The latch arm is movable in response to the rotational movement of the shaft between a first position in which the dead bolt is in its retracted position and a second position in which the dead bolt is in its extended position. A link having an elongate body is pivotally connected to the opposite end portion of the latch arm at one end thereof. The link has a foot portion at the other end of the body extending in a generally perpendicular direction from the body. The foot portion is releasably engageable with the dead bolt for selectively moving the dead bolt from its retracted position to its extended position upon movement of the latch arm from its first position to its second position.

Abstract: A lock assembly for locking and unlocking a door comprising a lock bar moveable between a locked and unlocked position, three locks, each of which have lock arms moveable between a locked and an unlocked position, and a linkage connecting the lock arms to the lock bar. The linkage has a first operating configuration whereby the lock bar moves from its locked to its unlocked position in response to the movement of any pair of lock arms from their locked to their unlocked position. The linkage also has a second operating configuration whereby the lock bar moves from its locked to its unlocked position in response to either movement by a predetermined pair of lock arms from their locked to unlocked position or the movement of the third lock arm from its locked to unlocked position.

Abstract: A safety door has safety bolts provided at two opposite peripheral edges of the door leaf. By a locking mechanism apparatus, the safety bolts can be shifted into assigned guideways in such a manner, that they protrude beyond the corresponding peripheral edge of the door leaf in a locked position and are accommodated in the door leaf in an unlocked position. The locking mechanism apparatus has a slide rod which can be shifted in its longitudinal direction essentially transversely to the guideways and with which the safety bolts are mechanically coupled. Precisely one safety bolt is carried in each guideway. The safety bolts assigned to the one peripheral edge and those assigned to the opposite peripheral edge are disposed offset to one another.

Abstract: The new table locking apparatus has opposed bolts, each connected to a rigid link for axial bolt movement. In the improvement, each link is pinned to an operating rod and the operating rod is coupled to a hand-operated toggle mechanism for bolt movement. The toggle mechanism provides positive control of bolt position. The apparatus is particularly useful with tables of the type stored in wall pockets and used in schools and other institutions.

Abstract: An independent dual deadbolt locking mechanism for securing doors, windows or the like. The dual locking mechanism has a single pivot key that acts to place two deadbolt locks in either a locked or unlocked position simultaneously. The deadbolts may be oriented at various angles to one another. Typically, the deadbolts are oriented at a 90 degree angle from one another, with one deadbolt locking into the side frame of a door, and the other locking into the upper door frame or floor. The mechanical arrangements of the locking mechanism allows one deadbolt to be broken or forced into an unlocked position without affecting or unlocking the other independent deadbolt.

Abstract: A device for controlling the opening and closing of at least two doors, each enabling access to an enclosure, a single control means adapted to allow separate and controlled access to each of the enclosures. The control means operates locking means for keeping the doors closed or for releasing them, in such a manner that the doors can be simultaneously either all closed at the same time or else at least one open and another closed. The locking means includes, for each door, at least one sliding bolt associated with a receiving seat provided on a corresponding door.

Abstract: A multi-point door lock system comprising an active lock and an inactive lock for use on single or double doors is self-teaching, provides one hand control of shoot bolts, and provides audible and tactile feedback associated with shoot bolt extension and retraction.

Abstract: An independent dual deadbolt locking mechanism for securing doors, windows or the like. The dual locking mechanism has a single pivot key that acts to place two deadbolt locks in either a locked or unlocked position simultaneously. The deadbolts may be oriented at various angles to one another. Typically, the deadbolts are oriented at a 90 degree angle from one another, with one deadbolt locking into the side frame of a door, and the other locking into the upper door frame or floor. The mechanical arrangements of the locking mechanism allows one deadbolt to be broken or forced into an unlocked position without affecting or unlocking the other independent deadbolt.

Abstract: A locking mechanism which provides a number of resistance points, all of which function to impede the opening of a door located on the chassis of a lottery dispensing machine or any other enclosure that must be secured. The locking mechanism includes a rotating cam which sets the lock in motion. Rotation of the cam is translated into reciprocating motion of a number of bolts which move into a locked position. Once the bolts are in a fully locked position, movement of the door is impeded. If two bolts are used, they face in opposite directions. If more than two bolts are used, they all face in different directions. This makes the lock impossible to jimmy. Further, to successfully pry open the lock would require an effort great enough to cause substantial structural damage to the enclosure itself. A cam extension is also provided which provides extra resistance when the locking mechanism is in a closed position.

Abstract: There is provided a lock handle assembly with a detachable handle.A mechanism provided in the assembly can perform a three-point locking up operation of a door 56. In the assembly: a rotor 12 has its rear-end portion fixed to a cam 16 which has its opposite ends connected with links 22a, 22b each of which has its front end carry each of arms 23a, 23b each of which has its front end carry each of rods 55a, 55b, so that the arms 23a, 23b are linearly moved back and forth as the cam rotates, whereby the rods 55a, 55b have their front ends engaged with and disengaged from receiving portions 60, 61 of a stationary frame element 58. At the same time, a catch plate 37 fixed to a rear-end portion of the cam 16 is rotated as the cam rotates, so that the catch plate 37 is engaged with and disengaged from a receiving portion 59 of the stationary frame element 58.

Abstract: A slide fastener for securing cabinet doors or enclosures for communications transmission and switching equipment is comprised of at least one locking slide bar operatively connected to a spring biased pivoting lever assembly which locks and unlocks the cabinet door by simultaneously engaging/disengaging the locking slide bar with a slide bar keeper secured to the cabinet door frame. The lever assembly may be secured in the locked or closed position by a cam operated catch that is releasable upon the application of force against a button that is integral with the housing of the slide fastener. An electrical grounding pad may be optionally provided to prevent damage or injury from static discharge.

Abstract: A position control, latch, and locking apparatus for use with a retractable cover used to securely enclose a pickup truck utility bed. The latch and lock mechanism is placed in a modified lead slat of the cover for latching to the cover guide tracks and to the tailgate. A key lockable actuating handle is placed on the slat concealing linkage arms pivotally connected to the handle further attached to a first and second diametrically opposed push rod for simultaneous operation of a four point spring biased latching mechanism. A flexible strap is connected to the cover to manually move the cover. The latching mechanism secures the cover to the sidewalls of the pickup truck as well as locking the tailgate in an upright position. A tailgate lip cover and attachment device is also disclosed for securely fastening the modified slat to the tailgate and provide a planar surface allowing for sealing and concealment of the latching mechanism.

Abstract: A security safe includes a housing having an annular portion defining an opening to an interior cavity, a door mounted to the annular portion for movement between opened and closed positions relative to the opening and having an interior side facing the interior cavity, an improved lock and boltworks mechanism mounted on the door, and an improved arrangement for hingedly mounting the door to the annular portion of the housing. The lock and boltworks mechanism includes a coupler member mounted on the interior side of the door and reciprocally and linearly movable between first and second positions so as to concurrently move a plurality of lock members between locked and unlocked positions in response thereto. The lock and boltworks mechanism also includes an arrangement for causing movement of the coupler member from the second to first position to cause movement of the lock members to their locked positions automatically in response to the door moving from the opened to closed position.

Abstract: A control mechanism for a door lock includes an outer cap, an inner cap, a plate fixed in the inner cap, an axle and a tube disposed in the inner cap and extended through the plate and extended toward the outer cap, a slide including a pair of oblong holes engaging with the axle and the tube and slidable relative to the plate. The slide includes two shoulders formed in the upper and lower portion and a pair of protrusions extended toward the plate, and a coupling device engaged between the tube and the axle for coupling the tube and the axle together.

Abstract: A device which can lock a sash to and unlock a sash from a door or window frame has a composite housing which is partially recessed into the frame and receives a portion of a reciprocable plate member which is coupled to one or more motion receiving elements serving to actually lock or unlock the sash. The housing further carries a handle which is pivotable in the plane of the plate member about an axis extending at right angles to such plane, preferably through an angle of approximately 180.degree.. The plate member has one or more sliders which are reciprocable in one or more elongated grooves provided in one or more internal surfaces of the housing. The motion transmitting connection between the handle and the plate member can include a single part, such as a crank, which is non-rotatably connected to the handle and is pivoted to the plate member.

Abstract: A security cabinet for storing of articles of value which is designed to prevent unauthorized access into the security cabinet by individuals not possessing sufficient physical strength such as young children. The latching arrangement of the security cabinet can be located in a position requiring an inward force of a sufficient magnitude to be applied to the door in order to permit the door to be opened and thereby gain access into the cabinet.

Abstract: A locking mechanism for windows having upper and lower sashes slidably disposed in a window frame. The mechanism has three modes, that is a locked mode, an unlocked mode and an auxiliary mode. In the locked mode at least one sash clamp mounted on a transverse rail of one sash engages a cooperating receiving element mounted to the adjacent transverse rail of the other sash, whilst a spring-biased pawl projects into a guide groove in the window frame. In the unlocked mode the sash clamp disengages the receiving element to allow the sashes to be slid relative to each other. In the auxiliary mode the spring-biased pawl is withdrawn from the guide groove to permit the sash to be moved transversely for cleaning.

Abstract: A sterilizer is disclosed which includes control circuitry for automatically controlling a plurality of sterilization cycles. The control circuitry operates to control actuation of a door opening mechanism whereby a door of the sterilizer may be automatically opened a small amount at the conclusion of a sterilization cycle whereby the sterilizer may initiate a drying portion of the cycle without the assistance of an operator. In addition, a baffled water reservoir is provided such that a water filling area of the reservoir is separated from a steam recovery area of the reservoir to thereby provide efficient recovery of steam at the conclusion of a sterilization cycle.

Abstract: A security system for a metal cabinet door comprises a latch adapted to be locked by a lock operating the latching members of the door. These comprise upper and lower strip members each having a plurality of hooks each of which, when the door is closed and latched, is engaged in an opening formed in a locking profiled member attached to the cabinet and at least one rotating sector whose rotation axis is perpendicular to the plane of the door. When the door is closed and latched the sector(s) enter an opening in a longitudinal member attached to the cabinet on the same side as the hinge(s). The sector is operated in the unlatching direction by the latch through a cable and in the latching direction by a return spring.

Abstract: An alarm lock for securely locking both edges of an emergency exit door. A rigid, hollow housing mounts upon an existing door between opposing door facings. A pair of rigid, elongated rods is longitudinally displaceable within the housing between a locked position and an unlocked position. The rods are driven by a coupler confined within the housing and coupled to a rotatable crank controlled by a paddle arm handle assembly. The crank is journaled for rotation about a rigid axle which projects through the housing interior. Movement of the handle rotates the crank, selectively extending and retracting the rods into and out of engagement with the door casings. A panel mounted on the paddle arm clearly displays instructions for emergency use. When the handle is activated, a rigid follower associated with one of the rods forcibly contacts an alarm switch to activate an audible transducer. The alarm may be manually disarmed and reset by manipulation of a key switch.

Abstract: A door panel latching apparatus including first and second elongated rods telescoped together for relative sliding movement. The first rod is mounted to the door with a free end for latching near an upper door edge and free to rotate about its longitudinal axis but is prevented from moving longitudinally. The second rod is mounted to the door with a free end for latching near a lower door edge and free to rotate about its longitudinal axis and to move along its longitudinal axis. A handle is connected to the rods by a linkage for longitudinally moving the second rod when the handle is rotated about an axis perpendicular to the longitudinal axis of the rods and for rotating both rods when the handle is rotated about an axis which is coincident with the longitudinal axes of the rods.

Abstract: The invention provides a lock with a forward and reverse action bolt element and a lock cylinder which precedes the operating region of the bolt element into which the force for shifting the bolt element is to be introduced. The lock comprises an arresting element which can be fused at least locally by the effect of heat on the lock cylinder and which, after fusion, arrests the bolt element against reverse lock actuation.In an alternative embodiment, the lock may comprise a coupling between the operating region and a lock-actuating element spatially separated from it and protected by the lock cylinder, which coupling can be broken by fusion due to the effect of heat on the lock cylinder.

Abstract: A locking mechanism for windows having upper and lower sashes slidably disposed in a window frame. In the locked position of the mechanism, locking bolts mounted on the transverse rail of one sash engage a sidewall of a guide groove in the window frame, thereby forcing that sash towards the other sash to effect a better seal between the sashes. Optionally, at least one sash clamp mounted on a transverse rail of one sash is adapted to engage a cooperating receiving element affixed to the adjacent transverse rail of the other sash. In the unlocked position of the mechanism, the sash clamp disengages the receiving element, and the locking bolts release contact with the sidewall of the guide groove while still remaining within the groove. The locking mechanism also has a release position in which the locking bolts are retracted from the guide groove to permit the sash to be moved transversely for cleaning.

Abstract: A panic bar mechanism for an exit door having a frame with a stile, upper and lower lock rods vertically sliding in the stile, and a panic bar carried on levers pivotally mounted on the door frame. The mechanism includes a plate mounted in the stile for rotation about a horizontal axis, upper and lower connectors each having a first end attached to the plate on opposing sides of the horizontal axis and each having a second end attached to the upper and lower lock rods, respectively, and a drive pin carried in the lower connector parallel to the horizontal axis, with one or more of the levers having an inner end directly engaging the drive pin for moving the drive pin upward and rotating the plate about the horizontal axis and moving the lock rods vertically. In the preferred embodiment, the mechanism is non-handed, with both levers capable of engaging the drive pin.

Abstract: A latching mechanism for use with a convertible-type vehicle is disclosed, in which a handle is pivotally rotatable about a fixed pivot pin, the handle being connected to a transfer arm which moves a retaining member out of engagement with a latch pin when the handle is pivotally rotated about the pin to disengage the convertible top from the vehicle.

Abstract: The housing comprises an actuating lever (8) articulated about a transversal spindle (13), and a mechanism (16), controlled by the lever, capable of driving, in opposite direction, two rods (17, 18); each rod is provided, at its end farthest away from the housing, with a bolt, in order to bring about a locking at an upper point and a lower point, respectively. The actuating lever (8) comprises a unilateral thrust organ (19) capable of co-operating with one or two complementary abutments (21, 22) provided for on a driving organ (23) of the mechanism (16), whereby the lever (8) may be tilted from one position into another, to co-operate with the appropriate complementary abutment (21, 22), in order to selectively allow the fitting onto a "right-hand" or "left-hand" door.

Abstract: A door lock includes a driving cam secured to a first spindle operatively retracting a latch, a follower cam secured to a second spindle operatively retracting a dead bolt and a linking rod having a first pin formed on a rod end pivotally connected with a cam protrusion formed on the driving cam and having a second pin formed on the other rod end slidably moving in an arcuate slot in the follower cam, whereby upon a rotation of an inside knob for rotating the driving cam for retracting the latch, the linking rod will be biased to pull the follower cam for rotating the follower cam to retract the dead bolt for simultaneously retracting both the deadbolt and the latch for opening a door smoothly, quickly and safely.

Abstract: A door latching and lifting mechanism for use on an aircraft as an escape hatch. The door (10) is an upwardly opening plug-type door. Its latching mechanism (12) consists of a torque tube (80) and handle (90), both of which are carried by the door (10). Pulling on the handle (90) rotates the tube (80) and causes door latch pins (113) to retract, thus releasing the door (10). A preloaded lift spring (48), connected to the door (10) by an overhead cable (18), automatically pulls the door upwardly as soon as the pins (113) retract.

Abstract: Vertical concealed rods are attached to the respective ends of the slider of an exit device by adjustment bolts and bracket assemblies. Each bracket assembly is held adjacent the head of its adjustment bolt by a retainer. Once the cover of the latch mechanism is removed, the bolts are readily accessible from the outside of the door.

Abstract: A locking arrangement for coupling a top with the windshield frame of a motor vehicle includes an actuating device arranged on a front frame part of the top approximately in the area of a longitudinal center plane of the vehicle. The actuating device, by way of transversely extending connecting elements, is connected to laterally exterior locking elements. The locking elements, when the top is in a closed position, interact with receiving devices mounted at the windshield frame. The receiving devices are only accessible from above in order to create a locking arrangement which, while having a simple mounting, ensures a good operation and enables large travel movements to be achieved in the vertical direction. The receiving devices are each formed by a closing part fastened to the windshield on which an approximately horizontally extending bolt is locally mounted.

Abstract: A battery powered steerable electric drive unit for detachable connection to a conventional wheelchair having a collapsible wheelchair frame comprises: a support releasably connectable to the wheelchair frame by an adjustable releasably lockable attachment mechanism; a drive assembly pivotably (steerably) mounted on the support and including a ground-engaging wheel and a battery powered electric motor for driving the wheel; a solenoid-operated brake engageable with a disc-like surface of a pulley in the drive mechanism for the wheel; a detachable steering column having a handle mounted thereon and pivotably and rotatably mounted on the support; an adjustable steering mechanism mounted on the support and connected between the steering column and the drive assembly to effect steering when the steering column is rotated about its longitudinal axis; and an electric controller comprising an off-forward-reverse switch, a speed control switch and a brake switch mounted on the handle, and further comprising a solid-s

Abstract: Roof trunk for motor vehicles which has a clamshell-like lid hinged to the preferably likewise clamshell-like trunk body, which in its closed state can be latched by a plurality of latches which are disposed on a longitudinally displaceable locking rod and which can engage in stationary catches. The lid is hinged to the trunk body at one of its short sides and can be joined at both longitudinal sides to the trunk body by a plurality of spaced latches, and the locking rods are connected at both longitudinal sides to a common actuating mechanism through corner-turning devices.

Abstract: An improvement of locking mechanisms having four latching bolts of the type that include a partially teethed disk mounted to a case and being cooperatively meshed with a geared cylinder that actuates it. The improvement comprises a step of bending of the linkage member that, through a rod, transmits the axial movement to the latching bolts. The axial movement is forced on the rod members by making coupling outer pins connected to the rod members to travel along radially disposed slots on the cover of the locking mechanism. The step in the linkage members allows linkage members to converge over the opposite ends of adjacent linkage members when the disk is rotated to the position that causes the former to be in the innermost position. This combination of elements allows the most volumetric efficient utilization of the space available by maximizing the axial travel of outer guiding pin member and, consequently, the latching bolts driven by it.

Abstract: A bolt assembly which includes four bars each cooperating with the corresponding edges of a closure wherein at least one of the horizontal bars is in the form of a hollow body having oppositely oriented slide elements resiliently mounted therein so that their free ends are urged against the ends of the adjacent vertical bars so as to prevent the formation of a gap in the joint between the horizontal and vertical bars in both their retracted and locked positions.

Abstract: A high chair tray latch mechanism comprising a housing secured to the underside of a high chair tray with movable latches on the opposed side of said housing for engaging apertures in the arms of the chair. A bell crank is rotatably mounted centrally within the housing between the movable latches. First and second rigid rods are pivotally attached at one end to opposite arms of the bell crank and the first and second arms are pivotally attached at their other ends to their respective latches. The crank includes a spring which rotatably biases the crank in a direction to engage the latches with the holes in the arms of the chair. A cable is connected between the crank an a lever located on the underside of the forward part of the tray. Manual squeezing of the lever relative to the tray foreshortens the cable so as to rotate the crank.

Abstract: An animal gate latch mechanism having upper and lower latch units movable successively and alternatively between gate open and gate latching positions therefor by a linkage system including a single actuating arm. From a gate open position of both latch units, movement of the actuating arm in one direction will independently move the latch units to the gate latching positions therefor. An intermediate latched condition of the gate is thus provided which can quickly and easily be effected by an operator on horseback. With both latch units in the latched position therefor, the gate is securely latched at two spaced-apart locations to prevent twisting of the gate by a confined animal and its possible escape therethrough.

Abstract: A cover for a hatch which will engage with a rim to produce a water tight seal. The hatch cover includes a plate capable of seating in the rim and a shaft extending vertically through an aperture in the plate and slidably received therein. A handle is located on one side of the plate, one end of the handle pivotally connected to the shaft so that the handle will move from a closed position parallel to the plate to an open position substantially perpendicular to the plate. The handle imparts vertical movement to the shaft with respect to the plate. Arm assemblies extend radially outward from the shaft on the side of the plate opposite the handle, whereby movement of the handle imparts movement to the arm assemblies thereby extending the arm assemblies to engage the rim.