Abstract: A safety lock device for use in releasably locking the head of a butterfly valve. The two part safety lock device comprises first: a cross-sectionally U-shape elongated frame, having an anchoring part at one end and a lateral flange with a number of bores; the anchoring part releasably engages with the valve head for anchoring the U-frame to the valve head; the elongated channel is sized for full engagement by the valve handle; and second: a casing, with an inner passageway, sized for through engagement by the U-frame, and a lateral pocket extension with a number of bores, for engagement by the lateral flange. The casing is characterized by a wedge part, integrally depending therefrom and sized for engagement between the diverging distal end portions of the valve handle and lever. Padlocks releasably interlock the U-frame to the casing by engaging selected pairs of flange bores and pocket bores, thereby concurrently locking the valve lever in its divergent relation to the valve handle.

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 rotatably mounted in a body housing the valve member and an operating handle connected to the stem via an elongated extension for rotating the valve member between open and closed positions. The locking mechanism includes a bracket mounted on the body and having a flange spaced outwardly from the body and generally perpendicularly to the rotational axis of the stem and including an aperture through which the extension extends and a pair of circumferentially spaced projections extending radially outwardly relative to the rotational axis of the stem at locations corresponding to the open and closed positions of the valve member.

Abstract: A locking device for air brake valves on vehicles is provided which comprises releasable elements for engaging an air brake valve control knob at the dashboard of the vehicle to prevent the control knob from being pushed inwardly to release the air brakes when the locking device is properly secured in place between the head of the control knob and the dashboard of the vehicle. A first element and a second element are adapted to be coupled together about the shaft of the control knob, and locked together. A portion for engaging the head of the control knob prevents removal of the head from the shaft of the control knob.

Abstract: A hot water faucet locking device comprising: an outer shell having an inboard region and an outboard region, the inboard region formed in a planar configuration with an inner surface and an outer surface, the inner surface including a cylindrical shaped bore, the outboard region being formed in a generally rectangular configuration with an inner surface and an outer surface, the inner surface including a generally rectangular shaped bore; and an insert including an inboard region and an outboard region, the insert having an upper surface and a lower surface, the upper surface following the contour of the bore in the shell and adapted to be affixed therein, the lower surface including a cylindrical shaped hollow projection extending therefrom, the projection having a cylindrical central portion adapted to fit snugly upon a water faucet in the operative orientation.

Abstract: The connecting linkage between a control lever and a control valve that controls the operation or the manipulation of an implement of a construction machine is often complex and difficult to properly adjust. The present invention provides a restraint mechanism for the control lever 10 to maintain its position in a neutral condition with respect to the control valve. A first plate 42 is pivotally mounted to a base plate 22 on the console of the machine and is movable to a first position to engage the control lever 10 and establish a neutral position. A second plate 58 is utilized to selectively secure the position of the first plate with respect to the control lever while the proper connections and adjustments are made to the linkage arrangements connecting the control lever 10 and the control valve to synchronize their respective neutral positions.

Abstract: A valve lock has a body and a moveable jaw for releasably gripping a lever handle of the valve against the body. The jaw has a threaded shaft that extends through a hole in the body, and a locking cleat is slidable on the threaded shaft. An arm is attached to the shaft between the body and the locking cleat, and is rotatable about the shaft to abut either the valve or a pipe connected to the valve. A hand wheel is threaded onto the shaft and can be tightened against the locking cleat which then forces the arm against the body to inhibit rotation of the arm about the shaft. The locking cleat has an aperture for receiving the shackle of a padlock, and the hand wheel has a plurality of notches in an exterior surface with one of the notches receiving the shackle to restrict movement of the wheel along the shaft.

Abstract: A valve handle latching assembly having a selectable latching slider which engages a detent on a fluid control device such as a ball valve. During assembly, a particular slider is selected for inclusion in the final assembly resulting in a valve tailored for its intended purpose. Depending upon which latching slider is selected, the valve handle latching assembly latches in the open and/or closed position(s) thereby preventing inadvertent rotation. The latching handle assembly may be manually disengaged to permit rotation of the handle in the opposite rotational direction.

Abstract: A lock comprised of a cylindrical body having a first passage extending axially through the body which passage is configured to enable a locking bar to be passed through the body, the bar having at least one orifice intermediate its extremities, the lock body having a second partial passageway extending from the side wall of the body at least into the first passageway and normal to the latter so that the orifice in the bar can be disposed in register with the second passageway. A cylindrical lock configured to fit slidably in the second passageway so that at least a portion of the lock may be thrust in the second passageway and through the bar orifice when the latter is disposed in register with the second passageway, when the lock may be secured by a key to be withdrawn from the outer end of the lock. This lock and bar may employed with external plates to secure adjacent members from movement relative to each other.

Abstract: A gas appliance stove safety valve system that incorporates a safety valve assembly between the gas line manifold of the stove and the wall shut-off valve from the main gas line. The safety valve assembly is mounted adjacent the rear of the gas appliance stove beneath an aperture in its top wall. Special structure is utilized to fasten the ball valve assembly to the top wall of the stove. A special key is utilized that can be inserted through the aperture in the top wall of the stove to rotate the valve stem of the ball valve assembly between a closed position and an open position. There is also structure for preventing removal of the key unless the safety valve assembly is actuated to its shut-off position.

Abstract: A retaining mechanism for a dispensing valve operated by a pivotal handle comprised of a retainer and a hook, the retainer having a base, a catch member and a latch member fastened to the base of the retainer, the catch member and latch member being arranged for movement relative to the base. The hook is threadably fastened to the retainer. A lock secures the catch member and latch member together.

Abstract: An anti-theft device for protecting air brake control valves from being manipulated is disclosed. A clamp assembly locks on to the valve knobs employed to release the air brakes in a vehicle. A pair of blocks incorporate a key lock assembly and posts to enable portable use of the device. This device is readily adaptable to lock more than one type of several standard brake valve knob sizes by utilizing removable inserts. Impact-resistant plastic or metallic compositions may form the bodies.

Abstract: A valve body with a retainer shoulder mounted on the side of the valve body. Inside the valve body is a valve obturator means which is rotatable inside the valve body and can open or block passages depending on the angle or position of the valve obturator means inside the valve body. A handle or lever is connected to the valve obturator means by a fastening means. A locking means is slidably mounted on the handle and has a stopping tooth which is positionable adjacent the retainer shoulder when the locking means is in a locked position. The stopping tooth and the retainer shoulder cooperate to block rotation of the handle when the locking means is in the locked position. The handle defines a bore which receives a bolt of a padlock. When the bolt of the padlock is in the bore, the locking means is prevented from moving out of the locked position.

Abstract: A gate valve locking arrangement in which a steel bracket is clamped on a portion of the truss extending upwardly from the valve bonnet and supporting the gate valve spindle and wheel, the bracket having a rigid bar extending upwardly and capped by a L-shaped member seating against the inside of the wheel. The bracket may be secured in a fixed portion relative to the wheel by a cylindrical lock having a recess into which the vertical portion of the L-shaped member is inserted and locked, or by a padlock in certain applications.

Abstract: A lockout apparatus for use on a valve's latching mechanism. The lockout apparatus is a rigid framework formed to encage the exterior structure of a valve and to provide a locking structural member for selective locked securement of the valve's movable latching mechanism, by example in a closed position. The lockout apparatus is sized according to the diameter and size of a valve, by example a ball valve, and includes opposing open-ended structure for accommodating attachment of piping to the inlet and outlet ends of an encaged valve. The locking apparatus is useful in meeting environmental protection requirements for locking outside valves, typically ball valves, an oil tanks and tanker trailers to avoid vandalism and accidental spills.

Abstract: A valve lock for valves wherein the valve stem is coupled to a valve actuator shaft and there is a spacing between the valve and valve actuator. A locking member is slidably receivable in the spacing and fixed against rotation so that a locking slot in the locking member engages a locking segment of the interconnected valve stem and valve actuator shaft. The locking member, in turn, can be releasably locked to prevent unauthorized or unintended use of the valve.

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: 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 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: 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: A lock for the end tube assembly and gate valve for the outlet gate of a railroad hopper car includes an elongated flexible cable and a locking element. The end tube assembly includes an end tube and an end tube cap for closing the end tube. There is a pivotal connection and a latch between the cap the end tube. The latch includes a latch member having an opening therein. The gate valve includes a valve member and an operating handle. The operating handle has an opening therein and is located adjacent to the latch member. The elongated cable, which forms a portion of the lock, passes through the handle opening and the latch member opening and has opposite ends thereof secured together by the locking element.

Abstract: A valve assembly comprising a valve having a housing and a valve element disposed in the housing and movable between closed and open positions, the valve element having a nut portion and a wing portion, the nut portion projecting out of the housing and having a cross-sectional configuration such that a tool may be applied for turning the valve element between the closed and open positions, the wing portion being movable between a first position when the valve element is in the closed position and a second position when the valve element is in the open position, the housing having a wing portion provided with an opening therein disposed in lockable relation with the valve element wing portion when the valve element wing portion is in its first position, a barrel lock removably mountable in registered openings of the wing portions when the valve element wing portion is in its first position whereby the valve element will be locked in the closed position, and a rigid member having first means cooperable with the

Abstract: A simple lock device for use on a valve of the push-pull or plunger operated type includes a tubular casing defined by a outer shell and an inner core, which is connected to the plunger of a valve so that the valve can be operated by pushing the casing against the valve plunger, a sleeve slidable into one end of the casing between the outer shell and the core, permitting plunger operation and actuation of the valve, and out of the casing against a fixed element such as the valve casing carrying the plunger, pins radially movable in the casing for engaging the sleeve to prevent movement thereof into the casing, and consequently to prevent actuation of the valve, and a lock in the other end of the casing for controlling movement of the pins, and thereby to control actuation of the valve.

Abstract: A ball valve of the type comprising a body including a valve chamber having inlet and outlet ports, and a rotatable ball element disposed within the valve chamber, the ball defining a conduit communicating with the inlet and outlet ports. The ball is actuated by a control lever to rotate between a first open position and a second closed position of the valve; a manually operable lock is provided to retain the control lever and the ball element in those first and second positions and in at least one intermediate operative position.

Abstract: A security cover for valves used to control flow of liquids from storage vessels wherein a part of the cover interlocks with the valve stem and/or a connected valve actuating handle to prevent unauthorized use of the valve. The security cover further includes a secondary lock enclosure means, attached to the top of the cover means, which receives the lock lip means and padlock.

Abstract: A locking device for parking brakes of trucks using an internally grooved knob on the instrument panel to control air brakes. A sleeve covers the knob and is locked to the knob to prevent pushing on the knob and removing it from the knob. The sleeve is provided with a lock plug for engaging the groove in the knob.

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: An anti-theft lock for oilfield valves where a base member fits over and attaches to a valve so that the valve stem projects outwardly of the base member. A cover member has pins received in locking bores in the base member where independent keys operate independent locks to lock the cover member to the base member.

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 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: 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: An anti theft locking device is provided and consists of a casing having a longitudinal passage therethrough and a transverse tapered bore intersecting the passage, tapered plug having an aperture with a top square head portion on the larger end of the plug, the plug fitted for rotation in the tapered bore to control the passage and a locking cover for preventing rotation of the top square head portion of the plug.

Abstract: A locking mechanism for ranges utilizes a bar extending transverse to the longitudinal axis of the knob operated shafts controlling the operation of the individual valves of a gas range or the individual switches of an electric range. A plurality of arms are pivotably secured to the bar, each having fingers directed and biased towards the longitudinal axis of each shaft. Each shaft is rotatable and carries an opening at a discrete location in the surface thereof. Rotating the shaft to a position corresponding to deenergizing the associated heating element of the range into an off position permits the free end of the finger to enter the opening, preventing further rotation of the shaft when the bar is slidably positioned into a locked position by the operation of a key operated lock.

Abstract: A lock apparatus shields the valve stem of a petcock and prevents unauthorized opening of the petcock.

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 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.