Abstract: A locking device is provided with a padlocking arrangement which includes a shiftable or pivotable latch lever cooperating with at least one padlock member, and a padlocking enabling member fit on a shaft of square cross-section connected to an electromechanical equipment to be controlled and inserted into a bore formed in a hub of a rotating control handle. The bore is formed by two superimposed circumferentially offset square openings receiving the shaft with clearance to permit a slight angular movement of the shaft and the padlocking enabling member thereon to cause disengagement of the latch lever from the padlocking enabling member.

Abstract: A locking bracket for a valve actuator is disclosed in which a bracket element slips over the rotatable input shaft of the actuator and has an arm extending over the surface of the actuator. A locking plate is affixed to the input shaft which may be interconnected to the bracket element. When so interconnected, rotation of the input shaft is prevented by contact between the arm and the surface of the valve actuator. The locking bracket is easily and economically installed due to the lack of any positive physical interconnection between the bracket and the actuator housing.

Abstract: A ball valve comprising a body including a valve chamber having inlet and outlet ports, and a rotatable ball element disposed within the valve chamber, the ball element having a conduit therethrough which communicates with the inlet and outlet ports. The ball element is movable by a control lever between an open position and a closed position. The valve is provided with a lockable security device which automatically locks the ball element in a positive closed position when the control lever moves the ball element from an open position to a closed position. The lockable security device includes a rotatable cylinder, a locking cylinder slidably mounted on the rotatable cylinder, a supplemental locking member to selectively allow manual locking of the locking cylinder in a position to prevent sliding movement of the locking cylinder on the rotatable cylinder.

Abstract: A rotatable control device including a body housing a control structure and having an external box; a control shaft journalled in the boss for rotation about an axis and having an internal portion connected to the control structure and an external portion extending outwardly from the boss; an operating handle having an inner end portion connected to the external portion of the control shaft, a gripping end portion for rotating the control structure between first and second positions and an intermediate portion; first and second locking structure circumferentially spaced on the body at locations corresponding to the positions of the intermediate portion of the handle when the control structure is in the first and second positions, respectively; a slider member slidably mounted on the intermediate portion of the handle for reciprocative movement between locked and unlocked positions; interlocking structure for cooperating with the first and second locking structure, when the handle is in the first and second po

Abstract: The locking device locks the valve control lever in both its closed or open positions. It consists of a male part and a female part. The male part includes a lengthwise cavity, for flatly and freely receiving the valve lever, and a U-shape extension, transversely extending from one end of the male part main body. The female part defines a channel for sliding engagement by the interconnected male part and valve lever, to interlock same. A padlock interlocks the male and female parts by engaging registering ears thereof.

Abstract: A method and apparatus for securing items in a storage unit comprise providing a cabinet with a plurality of drawers. Each drawer can be individually sealed by a break lock pull-tight security seal. As a security seal for a particular drawer is twisted and broken, items can then be obtained from the drawer. If a seal has been broken, a visual indication is made that the drawer has either been opened or tampered with. The inventory can thus be quickly and easily checked on a recurring basis without requiring each individual drawer to be checked since only drawers with broken seals need to be checked. The cabinets can be used to store pharmaceuticals, medical supplies, industrial supplies and/or any other supply for which an inventory must be maintained.

Abstract: A door locking mechanism for use on the inside of a pair of outswinging doors mounted in the opening of a frame in which the doors are hinged at opposite edges and having free edges adjacent each other and free to be moved between the opening and closing of the doors. The mechanism comprises extended members U-shaped in cross section mounted on the doors. One end terminates substantially flush with the free edge of each door. A latch plate is mounted for sliding movement within one U-shaped member. The latch plate is provided with a handle extending through a slot in the U-shaped member which can be employed to move the latch plate. The latch plate is moved between a closed position wherein the latch plate extends past the free edges of the doors to overlap the second door and an open position where the plate is entirely within the width of the first door. A lever is provided to clamp or unclamp the latch plate in either the open or closed positions.

Abstract: The method of the invention includes moving a control stick to fix the boom in the desired position, and then locking the stick in the desired position so that the operator cannot move the stick. The apparatus of the invention includes a bracket connected to the cab of the crane for receipt of a control stick, and a lock for connecting the control stick to the bracket.

Abstract: A transmission member includes a driving shaft (60) actuated by a control shaft (9), and a driven shaft (3) driven in rotation by a plate (61) provided with a driving thread and a driven thread. The driving shaft is provided with a thread that engages in the driving thread of the plate and the driven shaft is provided with a thread that engages in the driven thread of the plate.

Abstract: A lever-operated rotary valve having a rotary body for permitting fluid flow therein includes a locking device for selectively locking and unlocking the operating handle such that the operating handle of the rotary valve can be locked in a plurality of predetermined positions. The operating handle of the rotary valve can be oriented in any one of a plurality of positions and locked in that position without requiring the removal of the locking device. The locking device is an L-shaped member which fits on the stem of the rotary valve and includes aligned holes for receiving a padlock so that the locking device and handle are locked together.

Abstract: An anti-theft device is disclosed which is adapted to be mounted to the steering wheel of a vehicle. The device includes a yoke member adapted to be positioned on the steering column. The yoke member includes a key housing shield adapted to cover and protect the key housing on the steering column when the device is mounted in place. The device further includes a bent bracket member having one end adapted to be mounted to the yoke member and another end adapted to engage with a spoke of the wheel to prevent rotation of the steering wheel in a predetermined direction.

Abstract: An improved enclosure assembly of the type including an openable enclosure, a locking member movable relative to the enclosure for selectively locking or unlocking it, a keeper mechanism mounted on the enclosure for retaining the locking member in its locked position, and a manually operable lock for selectively locking the locking member in its locked position.An improved tamper-proof locking assembly is provided which greatly minimizes the danger of unwanted intrusion into the locked enclosure. A guard housing having a single opening is placed about the keeper mechanism. The single opening of the guard housing is made large enough for the insertion of a human hand therein when it is desired to unlock the manually operable lock, but is made too small for insertion of a cutting instrument that could cut apart either the locking member, the keeper mechanism, or the manually operable lock.

Abstract: A portable bar attaches tangentially and locks to a vehicle steering wheel, preferably at the uppermost section of the rim, and extends to where it is fully visible from outside of the vehicle. The bar is a holllow tube in which a pair of clamping members, one being a fixed section of the tube and the other part hinged thereto, surrounds and is locked about the steering wheel rim. A cavity in the tube protectively encloses, along with anti-saw-through bars, alarm circuitry and the batteries therefor. Light and sound annunciators on the bar and a flashing LED armed-condition indicator are provided. A panic button on the outside of the tube to manually trigger the alarm, and push button selectors enclosed in the tube and accessible only when the device is unlocked to arm and disarm the alarm and to activate the light to serve as a flashlight or emergency flasher.

Abstract: There is described a lock plate assembly for use with a three-position ball valve. The valve has a body, a valve element disposed for rotation within the body, and a handle mounted for rotation upon the body for operation of (off) position, a second (test) position and a third (drain) position. The lock plate assembly includes a lock plate frame defining a first frame stop for the handle in the first position and a second frame stop for the handle in the third position, a slide latch defining a latch stop for the handle in the second position, the latch stop being mounted upon the frame for movement between a first latch position with the latch stop disposed to prevent movement of the handle to the third position, and a second latch position with the latch stop removed from the path of the handle, and a spring or the like for biasing the slide latch toward the first latch position.

Abstract: A tamper-proof locking mechanism for a rotatable control device, such as a quarter turn valve including a valve member connected to a stem journalled in a body housing the valve member and an operating handle connected to the stem for rotating the valve member between open and closed positions. The locking mechanism includes a pair of lugs on the valve body at circumferentially spaced locations corresponding to the locations of an intermediate portion of the handle when the valve member is in the open and closed positions. A slider member is slidably mounted on the intermediate portion of the handle for reciprocative movement between a locked position and an unlocked position. The slider member includes a latch element having an open portion for receiving the lugs and arranged to restrain both rotational and axial movement of the handle when the handle is in the open or closed position and the slider member is in the locked position.

Abstract: An anti-theft device which may be connected between the steering wheel and one of the floor controls for immobilizing the use of the vehicle. An elongated body has a first end having a connection for engaging one of the floor controls and the second end includes first and second jaws with a plurality of spaced generally parallel dividers for providing an adjustable connection for locking to the steering wheel.

Abstract: A lockout device for a valve having a lever handle. The device includes a channel member defining a channel to receive a section of the lever handle when closed and a leg that bears against the valve or pipeline connected to it. A lock is inserted through the apertures in the channel member alongside an edge of the handle.

Abstract: A shield of rigid sheet metal is of a size and shape to substantially cover the instrument panel of an aircraft. A pair of shrouds on the bottom of the shield are spaced so that each fits over one of the control columns of the aircraft, and aligned holes in each shroud are adapted to receive a padlock to lock the shield in place. The shrouds are of a length to fit closely over the control columns when fully extended to prevent any significant movement of the control column axially and pins, which are secured to the shield, extent through openings in the control columns to prevent any accidental or unauthorized turning. A cylindrical housing open at one end is received over the throttle control, and a lock stem extending vertically from the housing is received in a tube, which is fixed to the shield, when the shield is possitioned on the instrument panel so that there can be no manipulation of the throttle.

Abstract: A theft prevention device for T-tops. A first latch panel opens and closes over the latch handle of the T-top latch assembly. A conventional lock is used to lock the first panel in the closed position preventing access to the latch handle and, thus, removal of the T-top. The device is supported over the latch housing by ends which cooperate with the latch pins of the T-top.

Abstract: A locking device to secure the rear door and tailgate of a truck equipped with a canopy and a rear bumper comprising an elongated member having a loop at the upper end for securing the handle apparatus of a truck canopy and a lower member with circular orifices that extends vertically through an orifice in the bumper. A locking means is accomplished by the use of a padlock in conjunction with the circular orifices in the lower member of the locking device.

Abstract: An automobile ignition lock cover for steering column-mounted ignition locks includes a hollow cover housing having an open side to fit over the ignition lock. An L-shaped bracket has a first portion disposed inside the housing and fixed to the back wall of the housing. It also has a second, outside bracket portion that extends out through a slot in the lower portion of the cover. A chain is attached to the upper end of the cover. The free end of the chain is attached to the U-shaped shackle of an adjustable shackle lock assembly. The chain wraps around the steering column, and the shackle legs are inserted through one or a pair of holes in the outside bracket portion and locked snugly in place in the lock housing, which bears against the opposite side of the bracket or is attached thereto. The L-portion of the bracket is disposed inside the cover and extends forward under the ignition lock, to prevent the cover from being rotated.

Abstract: An anti-theft device for locking an outboard motor comprising an elongated, channel-like, body member has a longitudinally extending opening to closely receive the head portions of clamping screws which clamp the motor to a transom board of a boat, or a motor stand for use in motor sales and/or service. The body member includes a slot to receive the shanks of the screws while allowing the screws to pass through the body member while the head portions are confined within the body member. Stops within the longitudinal opening in the body member are shaped to fit within recesses or notches in the head portions of the clamping screws. Locking means including a padlock secure the head portions of the clamping screws tightly within the body member and in contact with the stops to prevent rotation of the clamping screws.

Abstract: A valve lock for a tank truck comprising an elongated straight length of strap metal having a shorter leg at each end projecting laterally in the same direction therefrom. The shorter leg at one end is secured to an upstream portion of the valve body which connects to the conduit leading from the tank of the truck, and the shorter leg at the other end is releasably secured to the rotary valve operator or valve handle to prevent its movement from the valve closed position to the valve open position until released. The lock device is positioned in such a way that the elongated portion of strap metal bears firmly against a portion of the valve body, such as its outlet spout, to further restrain rotation of the valve operator or valve handle in the direction of rotation which would open the valve.

Abstract: A member formed of saw and bolt cutter resistant, hardened steel which is insertable between the arms of the U-joint of a truck steering system and locked in place by one or more padlocks. So installed, the member prevents steering of the truck, thereby preventing theft of the truck.

Abstract: A locking device (15) for preventing loosening of the clamp screw (13) and removal of the clamp bracket (11) of an outboard motor from the transom (10) of a boat. The locking device (15) has a tubular member (16) with holes (20, 21, 22) to accommodate the clamp handle (14), an arm of the clamp bracket (11), and a padlock (17). The tubular member (16) fits coaxially over the clamp screw (13) to protect the screw.

Abstract: The subject invention is a door lock security device adapted to provide a means for preventing a doorknob lock from being opened by a master key or other means through the keyhole while the room is locked from the outside, such device comprising a cover member to envelope and otherwise cover a doorknob of the type which has a locking mechanism integrated therein. The subject covering device comprises a circular ring member comprising two separate retractable members, which are pivotably mounted to one another at a common point about which they can retract or close relative to one another. The circular ring member is adapted to encircle the doorknob in a peripheral manner and is provided with a solid frontal portion to cover the key insert. The solid frontal portion is adapted to fit securely against the outer extremity of the doorknob in which the key slot is structured so as to prevent one from inserting a key or other object into the key slot while it is so covered.

Abstract: A steering column lock for heavy-duty vehicle steering columns includes a one-piece substantially T-shaped member having a main stem portion and a cross bar portion. The wheels of the vehicle are turned and the stem portion is inserted through the opening in the universal joint in the steering column. The cross bar portion interferes with adjacent structure such as the steering column support. A heavy-duty padlock is inserted through an opening toward the end of the stem portion opposite the cross bar portion. A crown is provided at the top of the cross bar portion to cause further interference when trying to rotate the steering column.

Abstract: A security housing for surrounding a valve attached to a storage tank comprising a pair of hinged clamshell structures (e.g., hollow semi-cylindrical enclosures) that are also pivotally hinged to the storage tank adjacent to an outlet pipe with valve such that the clamshell structure when closed surrounds the valve, yet swings away from the valve to allow access thereto. The security housing is further equipped with an opening which allows manual access to a padlock and padlock eyelets on the interior of the housing. Such a structure is useful to prevent unauthorized access to crude oil stored in the oil field and the like.

Abstract: This locking device is for outdoor water faucets, and serves to prevent unauthorized use of such faucets. Primarily, it includes a main body or housing, which fits over the handle of the faucet, and is locked in place by a padlock. It further includes a screw cap, which is threaded onto the threaded nozzle of the faucet.

Abstract: A locking device for a control valve having a valve body and an operating handle rotatably shiftable between two positions, including a base member mountable on the valve for swinging movement co-axially with the handle and a locking member mounted on the base member for dependent swinging movement therewith and independent pivotal movement relative thereto and normal with respect to the swinging axis. The base and locking members each have opposed shoulders disposed for abutment with respective opposite sides of the handle and the locking member has a depending leg disposed to engage the valve body. Pivotal movement of the locking member permits selective swinging of the device. Upon abutment of the appropriate shoulders of the device against the side of the handle intermediate its two positions, the locking member is pivoted downwardly onto the base member to simultaneously engage the valve body with the depending leg, thereby to lock the handle against rotation.

Abstract: A device for protecting the navigational instruments and radio equipment mounted on an instrument panel in the cockpit of an aircraft against theft. The device includes a protective cover mounted immediately adjacent the instrument panel and means for locking the potective cover to the control column of the aircraft in a manner such that the aircraft controls will not be damaged in the event that the protective cover is tampered with.

Abstract: A locking device to prevent unauthorized opening of a winged gas stop used to control the flow of gas to a residence from the lines of a utility company is disclosed. The device comprises a shroud which is shaped to fit snugly over the two wings of the gas stop when the gas stop is in a closed position and a barrel lock which is adapted to be inserted into the shroud and through holes in the wings to lock the wings in place and the shroud on the wings so that the wings cannot be moved relative to each other. The shroud includes a metal shell open at the bottom and at the rear, a thin metal sleeve, a metal locking plate and a metal end cap. The locking plate and end cap are both welded onto the rear of the shell and the sleeve is press fit into a hole in the front of the shell.

Abstract: The present invention comprises a locking device and, more particularly, a security bracket, finding particular application for bicycles and the like with brake handles. The security bracket comprises a small U-shaped shackle and a member which is slidable thereon and a lock. In use the brake handle of the bicycle is locked by the shackle in a position which urges the brake handle toward the bike handle to thereby apply braking pressure to the bike until the shackle is unlocked.

Abstract: A deadbolt lock protector including an outer metal enclosure, covering the lock, and attached to the door by means of non-removable screws. Inside the enclosure is a pin, formed of non-magnetic material such as brass, held alongside the thumblatch of the lock, preventing it from turning. The pin is held in that position by brackets and underneath by a support member. This support member's attachment is pivotable, and a cable is attached to it, so that from a remote position, the cable may be pulled, allowing the pin to drop out of the enclosure, in turn allowing normal use of the lock by means of a key. An extender straddles the thumblatch, so that the thumblatch can be turned from the inside of the door. The narrow portion of the extender, however, which passes through the enclosure, is relatively weaker than the pin, so that when the pin is in place, and the extender is forced, the extender will break before the pin.

Abstract: Unauthorized removal of the cap from a standpipe, such as a fire line standpipe, is prevented through use of a bent metal bar and a nipple formed at the center of the standpipe cap. The bar has an opening to accept the nipple extending from the standpipe cap, and a slot to receive a metal pin which prevents movement of the standpipe cap, rotation of the cap being prevented by additional means formed on the cap and bar. The bar can be so formed as to also prevent unauthorized removal of the handwheel of the valve which permits liquid flow through the standpipe opening.

Abstract: A lock apparatus for attachment to the top of an input pipe communicating with a storage tank includes an open-ended cylindrical housing for mounting to the top of the input pipe, a butterfly valve mechanism pivotally mounted in the housing with a butterfly valve activating axle protruding through an orifice in the housing, and a locking mechanism. The locking mechanism includes a latch pivotally attached to the protruding end of the axle, a lock flange attached to the outside of the housing and, a tamper prevention flange in linear alignment with the axle and the latch to prevent unauthorized tampering with the axle and attached latch. The latch may be coupled to the lock flange and locked to maintain the butterfly valve in the closed position across the interior of the housing.

Abstract: A vehicle ignition-transmission protection enclosure is provided, whereby the ignition switch and transmission gear lever are protected from tampering and vandalism. The protection enclosure secures the transmission gear lever in combination with the ignition switch, such that movement of the former and access to the latter is prevented during installation. The protection enclosure includes an adjustable transmission lever yoke which surrounds a segment of the transmission gear lever shaft. That yoke may reside within a hinged, flanged, and contoured apparatus, comprising the remainder of the protection enclosure, that may be repeatedly and effortlessly installed and removed.

Abstract: A cup with a saddle-shaped open end fits on a steering column over the ignition switch and forms a support bracket for the ends of a cross-chain of T-configuration, whereby one chain portion goes from one side of the cup around the column and the second chain portion goes from the crossing first portion over a steering wheel spoke, both chain portions ending at and lockably securable to the other side of the cup, to provide a removable device for securement of both the ignition switch and the steering wheel of the motor vehicle.

Abstract: The hook unit of the present invention is adapted to receive truck tire chains when not in use, but which at times must be carried on the truck so as to be available in case of need therefor. The hook units are preferably employed in a pair and mounted in adjacent but laterally spaced relation on the truck; the truck tire chains, when out of use, being engaged with, spanning between, and depending from such pair of hook units. Each hook unit includes a bracket affixed to the truck, and an upwardly opening hook having an extension leg detachably engaged with the bracket whereby the hook may be detached and stored in those seasons or under road conditions when trucks do not need or carry tire chains.In a modification of the hook unit and to prevent theft of the tire chains when hook-engaged, the extension leg of the hook is padlock-secured in the bracket, and a padlock-secured anti-theft bar spans the throat of the hook.

Abstract: Means for inter-locking the two control wheels of an airplane to prevent movement or vibration of the ailerons and horizontal stabilizer when the plane is parked. Such means is in the form of a loop of cord which is looped snugly about each inboard upright arm of the two control wheels to prevent movement of the ailerons. An integral straight cord portion pulls the control wheels rearwardly sufficiently so as to raise the horizontal stabilizer and prevent it also from moving. The straight cord is anchored on the floor of the aircraft between the seats of the pilot and co-pilot.

Abstract: A device for preventing the stealing of a motor vehicle of the type having a steering wheel mounted in front of a panel such as the instrument panel or dashboard of an automobile or motor boat.

Abstract: A latching and locking mechanism for a rotatable control of the type having a stem journaled in a body and rotatable about an axis in a boss on the body. The stem has a protuberance for engagement with a handle. The handle comprises a boss-engaging end portion, a stem-engaging portion, a slider-riding portion, and a grip end portion. The slider-riding portion has a slider with a tang extending therefrom and means for securing a lock to restrict movement of the slider. The boss has surfaces located to correspond to predetermined positions of the stem. These surfaces are engageable by the tang which, when so engaged, restrains the handle from rotation and prevents removal of the handle from the stem.

Abstract: An aircraft anti-theft device for use with an instrument panel-mounted engine control of the type typically found in light aircraft which has a control shaft provided with a hand-grip knob at one end thereof mounted for telescopic movement relative to the instrument panel from an extended engine-idle position to a depressed full power position, or from an extended full-lean (idle cutoff) position to a depressed full-rich position, depending on the type of control, includes a housing covering the hand-grip knob and a shaft enclosure member which fits over the control shaft in its extended position for preventing its telescopic movement. The anti-theft device also includes a peripherally slotted segment connected between two outer segmented portions of the shaft enclosure member to receive an ordinary padlock whose shank fits into the slot to keep the lock from being dislodged and to prevent removal of the enclosure member.

Abstract: A locking device for an outboard motor having a C-shaped mounting bracket fitting over the back transom of a boat and containing a mounting screw with a handle at one end for tightening a foot at the other end against the transom, said locking device having a first member with two angular arms, one of which is secured against the transom by the foot of the mounting screw and the other arm locked to a second member having a handle restraining portion located adjacent the handle to prevent rotation of the handle.

Abstract: A locking hardware adapted to conceal and confine the clamp screws of an outboard motor against operative removal from the transom board of a boat and the like by the provision of a back plate set against the transom board by the clamp screws and having a stud bolt parallel to the clamp screws and inboard arm of the C clamp of the motor upon which stud bolt a channel iron cover member is mounted to confine the handles of the clamp screws, the cover member having a cylindrical shell aligned with the threaded end of the stud bolt for receiving a wrench operated nut therein for securing the cover member to the bolt and lock receiving keyway in the wrench head of the nut for locking such nut within the cylindrical shell to prevent removal of the nut therefrom.

Abstract: A locking cover is provided which is mounted at one edge on a television set and so arranged when in locked position that all the primary television controls are covered and unaccessible to the hand, and which when unlocked, may be swung or slid to a position where access to the primary controls is provided. The device is further characterized in that when in locked position, it does not substantially interfere with sound coming from the loudspeaker aperture of the television set and does not cover the picture tube. The cover may be locked in place with any conventional type of lock and key such as a pin tumbler lock or a padlock, and may be unlocked by a key, combination arrangement or any other suitable lock.

Abstract: A lockable closure plug consisting of a top-flanged cylindrical resilient compressible body with a top plate covering the top of the body and a flat bottom plate engaging the bottom of the body, and an axial operating stem rotatably engaging centrally through the body and abutting on the top plate and threadedly engaged through a nut secured centrally to the bottom plate. A rod-like handle bar is secured perpendicularly through the top end of the stem and a pair of link bars are pivoted to opposite sides of an upstanding U-shaped bracket on the top plate. The link bars in raised positions can lockingly receive the handle bar therebetween, and said link bars are apertured to receive the hasp of a padlock, which can hold the link bars in raised locking positions.