Abstract: Exit device has auxiliary bolt which when held in by door strike permits a blocking leg to prevent unauthorized forced retraction of main latch bolt. Normal operation of device by panic bar pivots blocking leg out of the way and then retracts main latch bolt.

Abstract: An electric door lock having a return means comprising a pair of locking members, a return member, rod guides, and leaf springs which eliminates the disadvantages of roller type pivot member locks. The lock is thinner to provide improved appearance. The locking members and return member may be connected to each other to ensure more reliable operation. A biasing force is applied to the locking members in the same direction as the pivotal movement of the locking members, and the engaging surface of the locking members does not apply force to the locking levers thereby making it possible to disengage the locking lever from the locking members using only a minimum of magnetic force and consuming only a small amount of electric power which can be conveniently supplied by a small DC battery.

Abstract: The baggage closure incorporates a closing lever which carries a cylinder rotatable by means of a key and intended for locking the closing lever in the closing position. According to the invention, the cylinder (3) has a cam (7) which interacts with a lug (8) on the mounting (2) of the closing lever (1). Located on the closing lever (1) is an extension (9) which interacts with an orifice (16) in a closure fitting (10) fastened to the baggage.

Abstract: In a door hinged to a frame having a locking channel pivotally mounted upon a vertical axis upon its closing edge aligned with the door and interlocked with an elongated engaging element upon the frame, the channel being sufficiently movable relative to the door that it disengages the engaging element so that the door may open, and a blocking member movably mounted upon the door in one position retaining the channel in a locked position when the door is closed and movable to a release position; the improvement comprising; a lever or knob rotatably mounted upon the door and a linkage movably mounted upon the door interconnecting the lever or knob with the blocking member for moving the blocking member to its release position so that the channel moves to disengage the engaging element. The linkage includes a clutch operated actuator pivoted upon the door in operative engagement with the blocking member.

Abstract: An automatically engageable and quickly and easily releasable locking device for a toilet seat and lid is disclosed. A single mounting bar attached to the underside of the lid carries a pivoted spring-biased locking arm which is released by simple finger pressure and returns automatically to a positive locking position in contact with a stop whenever the lid is closed. No reconstruction or alteration of the conventional toilet bowl or seat and lid structure is required. The locking arm may also be gravity returned to its locking position without spring action.

Abstract: A latch for securing a panel within an overhead opening includes a base portion which is secured to the panel. A cam is pivotally mounted to the base and is biased such that upon insertion of the panel into the opening a foot on the cam snaps over adjoining structure, pinching the structure against the base and thereby securing the panel. A trigger mechanism pivotally mounts to the cam and is configured to lock the cam in an unlatched position upon desired removal of the panel.

Abstract: The dogging device comprises a detented dogging hook, for engaging a latching and unlatching control rod of a panic exit latch and actuator assembly, or a like assembly, and comprises means for selectively changing the operator-implements thereof from one type to another. The method comprises the steps of forming such a changeable dogging device. The kit sets forth the components parts cooperative with a basic dogging device for adapting the latter for use with any one of a plurality of operator-implements.

Abstract: A container locking device includes an oblong guiding element fixed on one end of the housing. A round passage extends through the housing from end to end and through the guiding element. A rotatable locking bolt lies in the passage, the locking bolt having a first end extending from the guiding element and a second end extending from the end of the housing opposite the guiding element. An oblong hammer head is fixed on the first end of the locking bolt. A handle is fixed on the second end of the locking bolt. Axial movement of the locking bolt is restrained. The result is a low-cost, reliable, safe container locking device. Stops limit rotation of the locking bolt to an excursion of approximately 90.degree.. The passage is formed with a tube that extends outwardly from the end of the housing opposite the guiding element to space the handle therefrom and thereby facilitate its movement. A removable catch secures the handle in the position where the hammer head is transverse to the guiding element.

Abstract: A lever-type handle for operating a racking mechanism and providing an interlock for a cabinet enclosing electrical equipment. The handle is comprised of two sections which are linked together by a throughbolt. A cover assembly retaining and enclosing a portion of the handle is provided with an opening oriented so that the bolt is only accessible when the handle is in an "on," or energized, position. By removing the through bolt the handle sections are disengaged so that one portion can be moved to a non-locking position and access gained to the cabinet interior.

Abstract: Latch for locking a container to a pedestal on the flat deck of a flat car and particularly containers containing flammable materials. The container is supported on a pedestal at each corner thereof and the pedestals are adjustably mounted in guideways for movement along the deck of the flat car in accordance with the length of the container, to support containers at selected intervals along the car. A spring biased latch is provided to lock the container to the pedestal and a lock is provided for the latch is provided which reacts against the pedestal and includes a biasing spring for the lock to positively hold the latch in a locked position even though the car should be derailed.

Abstract: A closure control mechanism especially designed for a pivoted door of a cargo carrier, such as, a highway or off-highway truck or trailer, cargo container, tanker and the like. The closure mechanism includes a hinged lock shaft adapted to be connected to one or the other of two members one of which is hinged and adapted to be selectively secured in closed position relative to the other, a keeper member(s) having a base part adapted to be secured to the other of the first two mentioned members and a part spaced from the base part having a surface facing in the direction of the base part for engagement with the lock shaft when the lock shaft is pivoted in the direction to move the hinged member of the first two mentioned members away from the other.

Abstract: Rigid with a plate mounted on a door jamb is an inward extension, on the free end of which is pivoted a latch which swings between door-blocking and door-unblocking positions. The latch is releasably retained in door-blocking position by a flat strip having one end pivoted to the latch and a free end engageable between the door and the door jamb. The latch also has an intermediate position which permits the door to be cracked open.

Abstract: The latch assembly is provided with a locking collar and a pair of knockouts so that the latch assembly can be easily converted to a latch-lock assembly by simply inserting a cylinder lock in the proper knockout, depending upon whether the assembly is used in a right-hand or left-hand installation. The conversion of the assembly may be made before or after installation of the latch-lock assembly.

Abstract: A latching mechanism including an engageable latch bolt and latch trigger each adapted to be pivoted from a first preselected position wherein the latch bolt and latch trigger are engaged to a second predetermined position where the latch bolt and the latch trigger are disengaged such disengagement being accomplished by actuation of a latch trigger actuator which overcomes an actuator biasing means which links the latch bolt and the latch trigger.

Abstract: Ridged with a plate mounted on a door jamb is an inward extension, on the free end of which is pivoted a latch which swings between door-blocking and door-unblocking positions. The latch is releasably retained in door-blocking position by a flat strip having one end pivoted to the latch and a free end engageable between the door and the door jamb. The latch also has an intermediate position which permits the door to be cracked open.

Abstract: A door actuator for a commercial vehicle includes a mechanism which biases the handle to a stored position and a latch which maintains the handle in the stored position. A key operated lock mechanism cooperates with the latch to lock the handle in the stored position.

Abstract: The arresting device for a forwardly inclinable backrest of a vehicle seat comprises a hook-shaped pawl which is pivotably arranged on a lateral side of hinged mounts for the backrest to engage in the normal position of the backrest a stop member projecting from the seat part. The lower arm of the U-shaped porton of the pawl is provided with a claw which in this normal position engages a corresponding nose of a retaining member which is also pivotably supported on the mounting part and is controlled by a manually operable releasing lever. A tension spring arranged between the pawl and the retaining member urges the pawl into a standby position when the latter is released from engagement with the holding member and also urges the holding member into a ready-to-close position.

Abstract: A tension latch, embodying an over-center latching principle, includes means for adjusting the latch tension in the fully closed and latched position. The adjustment means is readily accessible through a channel-like opening formed by the latch handle. The same portion of the latch handle contains a secondary locking mechanism which is laterally offset from the adjustment means and is activated from the side of the handle, thereby maintaining complete access for tension adjustment. The lateral mounting and action of the locking mechanism allows the low profile of the latch to be maintained.

Abstract: A device for securing a hatch cover has a locking strap pivotally attached at one end and adapted to overlap adjacent end portions of trough hatch covers. The locking strap has a free end engaged by a locking bar which pivots at right angles thereto. The locking bar is part of a unit or module which includes a shackle and a latch hook for holding the locking strap. The shackle is pivotally attached to the locking bar and is weighted with ballast to always be disposed in a vertical position for locking. The latch hook is also weighted and allowed a small amount of rotation to compensate for wear of the sealing gaskets to insure continuous locking engagement between the shackle and the latch.

Abstract: A latch assembly (44) comprises a base (48), an arm (80,82) mounted to the base (48) for movement between open and closed positions, and a restraining lever (58) movably mounted to said base. The restraining lever (58) is selectively positionable between a restraining position for restraining the arm (80,82) in the open and closed positions and a release position for releasing the arm (80,82) from the open and closed positions. The restraining lever (58) has a first surface (73,75) for restraining the arm in the closed position with the lever in the restraining position and a second surface (77,79) for restraining the arm in the open position with the lever (58) in the restraining position. Further the latch assembly (44) is disclosed in combination with a compartment (10) which compartment (10) includes a cover (22,24) removably secured thereto. The cover (22,24) includes a tab (26,28), and the arm (80,82) in the closed position extends over the cover (22,24) into engagement with the tab (26,28).

Abstract: A latch assembly for a closure, particularly a vehicle emergency exit window, comprising a pivotally mounted latch bar engageable with a cam or a pair of cams for providing the force which holds the closure against the structure surrounding the opening closed by the closure. In the preferred embodiment, both the latch bar and a pair of cams are pivotally mounted on the closure so that the cams are engageable with the structure. In other embodiments, the latch bar is pivotally mounted on the closure or on the structure and the cam or cams are either pivotally mounted or mounted in a fixed position on the structure.

Abstract: A latch for ovens and the like includes a latch subassembly movable between latching and unlatching positions, a high temperature locking pawl engageable with the latch subassembly at a preselected elevated temperature to block its movement to unlatching position, and a thermal element which moves the locking pawl into blocking position. First adjustment means is provided to engage the locking pawl during its movement from a nonblocking position to the blocking position so as to locate its abutment surface in a predetermined position in the path of movement of the latch subassembly. Second adjustment means is also provided and is engageable with the locking pawl during its movement from blocking position to non-blocking position so as to locate the abutment surface on the pawl in a predetermined position.

Abstract: The bolt of a latching mechanism is spring actuated toward a latching position relative to the latch-receptive slot of a latch-catch which is pivotally mounted on the vertical member of a swing gate, and movement of the bolt from a fully latched position to a retracted non-latching position is controlled by a pendulum stop which is normally and gravitationally disposed in interfering relationship with the bolt, whereby an intentional, deliberate, pendulum-stop-displacing action is required on the part of an attendant in order to enable the bolt to be shifted from an advanced, locked position to a retracted position.

Abstract: A door latch has a latch bolt for being pivotally mounted on a door for 90.degree. angular movement between latched and unlatched positions, a retractable stop member pivotally mounted on the door and being spring biased for being engaged by the latch bolt for blocking the same in its unlatched position while the door is open. Upon closure of the door, the stop member engages an abutment adapted to be fixedly mounted on a doorframe and is thereby pivoted to a retracted position against the bias of the spring, so that the latch bolt is free to be moved between the latched and the unlatched positions only when the door is closed.

Abstract: A device for latching a sliding door member in place against a stationary frame structure includes an elongated hasp mountable on the door and engageable with a keeper secured to a bracket on the frame with which the hasp engages preventing it from moving laterally outwardly. A pair of cam elements are pivotally mounted on the bracket for movement about a common axis above the hasp, and have flat end surfaces directly overlying an end edge of the hasp for latching it against vertical upward movement. A stop pin on the bracket below such common axis engages with the cam elements for permitting one of them to pivot in only one direction while permitting the other cam element to pivot in only an opposite direction so that the hasp remains latched against vertical upward movement by one or the other of the cams even when subjected to forces having a tendency to cause the cams to pivot in either such direction.

Abstract: A door lock, particularly well suited for releasably retaining a pivotally mounted truck door in a closed position, includes a shaft and its operating means mounted on the door, and a pair of keeper members mounted on the door frame. A pair of cam members are secured to opposite end regions of the shaft. The shaft has a central portion which projects through openings formed in opposite sides of a pan-shaped housing. A handle is secured to the central portion for rotating the shaft to bring the cam members into and out of latching engagement with the keeper members. The handle is moveable between a nested position wherein the handle is nested within a recess defined by the pan-shaped housing, and a projecting position wherein the handle projects forwardly from the recess. A latch mechanism is carried by the housing and includes a latch member mounted for pivotal movement between latched and unlatched positions.

Abstract: A latch for ovens and the like includes a latch subassembly movable between latching and unlatching positions, a high temperature locking pawl which is engageable with the latch subassembly at a preselected elevated temperature to block its movement to unlatching position, and a thermal element which rotates the pawl into the blocking position. Resiliently deflectable means is provided on the locking pawl to rotate the pawl into blocking position in the event that the latch subassembly is moved from the latched position towards the unlatched position as the preset elevated temperature for latching is approached, thereby compensating for lag in response of the thermal element and preventing opening of the oven door at elevated temperatures.

Abstract: A swing wing motor vehicle window lock has a bracket which is fastened to the glass pane of the window. A lock bar and a swing wing are pivotally connected to the bracket having axes of rotation perpendicular to each other. The swing wing has a pin which fits snugly into a bore in the lock bar in two opposite positions, one for window open and another for window locked position.

Abstract: A door latch arrangement is disclosed to prevent a door from popping open when the door is subjected to pressure from the inside. Means are provided to restrain movement of the door latch until the door and latch have moved partially open, thereafter the door is free to manipulated to a fully open position.

Abstract: In a pneumatic outlet a "U" shaped bail assembly is pivotally mounted on at least one end wall of the outlet. The bail assembly includes a pair of arms which extend outwardly from the end wall beyond the discharge tube of the outlet, and a body portion which extends transverse to the longitudinal axis of the discharge tube and joins the arms. A locking handle is mounted on the body portion which is movable to a locking position to maintain the end cap in engagement with the discharge tube. A locking assembly mounted on one of the arms of the bail is movable between a position blocking movement of the locking handle from the locking position and a position allowing movement of the locking handle to the unlocked position. A fastener member carried by the locking assembly is operable to fasten the locking assembly in the handle blocking position.

Abstract: Latch apparatus is disclosed for use in combination with a hinged door and a stationary member and comprises first and second cooperating members adapted to be mounted to the door and the stationary member, the first member adapted to be mounted to one of the said door and stationary members and the second member adapted to be mounted to the other of said door and stationary members. The first member comprises a pivotally mounted pin engaging member having a slot opening therein for engaging a pin and an arm pivotally mounted on the pin engaging member for swinging over the slot opening. The second member comprises a knob having a detent in the outer periphery thereof for receiving the end of the arm when the arm is positioned over the opening in the pin engaging member.

Abstract: A gate latch including a body-mounted latch bolt which may be actuated to an elevated position from outside the gate by a lever extending through the gate to disengage the bolt from the latch strike. A lock device is provided which may be key-operated on the outside of the gate to locate a detent or cam element in a position to prevent movement of the lever, thus preventing the gate from being opened from the outside. Additionally, or alternatively, a cam or crank-like element may be actuated by the lock to prevent rotation of the latch bolt to unlock the gate. The element may be mounted so as to have a relatively slidable portion thereon which is actuatable, against a spring biasing force, to allow the bolt to be rotated, by one of the inside of the gate, to open the gate.

Abstract: A lock means for doors of an automobile comprises a lock base, a ratchet which is mounted rotatably on the lock base, is provided with a full-latch claw and a half-latch claw and is biased toward the unlock establishing direction of the lock means, a hindering piece which is overlapped on the ratchet and is movable against the ratchet between an envelope position and a non-envelope position, a holding piece mounted rotatably against the lock base, biased toward the ratchet and adapted to engage with the contours of the overlapped ratchet and the hindering piece and an interconnecting means interposed between the hindering piece and the holding piece and adapted to actuate the holding piece between the envelope and the non-envelope positions.

Abstract: An overcenter type latch for relatively movable members includes a retainer of molded plastic secured to one member and having spaced recesses adjacent one end thereof and a striker adjacent the other end thereof. An operating handle has spaced abutments adjacent one end thereof received within the retainer recesses for pivotal movement of the handle between an overcenter latched position and an unlatched position. An elastomeric link is pivoted to the operating handle and to other member. The link is tensed when the handle is in latched position and extends between the spaced recesses and abutments. A manually operated latch integral with the handle cooperates with the striker to block movement of the handle to unlatched position unless the latch is manually released.

Abstract: The invention relates to a lock for the hinged lid, panel or bonnet of a motor vehicle. Said lock comprises a locking hook pivoted to a support by means of a pivot pin, and a keeper coacting with said hook, said hook being urged to its open or release position by a torsion spring interposed between said hook and said support, and means for locking said hook in its closing or locking position in relation to said keeper, said locking means comprising on the one hand said spring reacting against said support by means of an arm having a certain freedom of movement as far as the distance between said arm and the hook axis is concerned, and on the other hand manual control means coacting with said spring arm for varying said distance between said arm and said hook axis, whereby said spring arm will coact according to its distance from said axis with either a stop member for locking said hook in its locking or closing position, or another stop member for retaining said hook in its opening or release position.

Abstract: An outside door handle assembly for actuating a door latch mechanism of vehicle doors, comprising a base member secured to the vehicle door, lever means pivotally mounted upon the base member and operably connected to the door latch mechanism, a manually operable handle member pivotally mounted upon the lever means, and locking means normally locking the handle member to the base member, characterized in that the handle assembly is rotated in a door opening direction only when the handle member is initially operated, so that an undesired door opening, such as, for example, due to the force of inertia from an automobile collision at the door location, can be prevented.

Abstract: A pivoting latch and lock for a door hinged in a frame having a strike aperture has a detent latch that can be moved out of the strike opening merely by pulling the door open unless the detent latch is specially blocked against such movement. In one embodiment a frame is installed on the door and presents an edge opening. Normally spring-projected partly through the edge opening is a detent latch having a central body carrying one or more pivot lugs guiding rotation of the detent latch about one or more axes located within the frame and alongside the detent latch. The detent latch has a surface associated with each axis so shaped as to clear the frame opening when the latch is rotated about that axis. A lever is pivoted on the frame to move into and out of a position blocking rotation of the detent latch. The lever may be operated by a solenoid or electromagnet. If desired, the same electrical device can move the two levers of duplicate pivoting latches.

Abstract: A lock for a sliding door comprising a base member fixedly secured to an outer surface of a sliding door guide channel with a leaf member pivotly connected to the base member. The leaf member is pivotable from a position where it is substantially an extention of the base member and the door is freely slidable to a second position substantially perpendicular to the base member and the door is obstructed from movement from a closed to an open position. A translatable locking means carried by the base members is provided to prevent the leaf member from movement from its second position to its first position. An additional stop member is provided for attachment to the door when the door is positioned remote from its outer channel member for engagement with the leaf member when the leaf member is in its second position.