Abstract: A connecting piece for connecting a wiper arm with a wiper blade, having three different fastening systems for wiper arms, so that a multiplicity of wiper arms can be received.

Abstract: Methods and apparatus disclosed for providing a fastener that can hold suitably flat planar objects. No tools are required to actuate the fastener. The fastener holds the object with a predetermined range of force, determined by a built-in spring when actuated. The fastener is particularly suited for fastening Printed Wiring Boards (PWBs) in an electronics enclosure, and holds the PWBs in position, as well as providing electrical coupling of a voltage supply used on the PWB to the electronic enclosure.

Abstract: A turnbuckle device (10) for clamping concrete shell elements (35, 36) comprises stationary claws (14, 15) and pivotable claws (24, 25) which can be clamped with the stationary claws (14, 15) via a wedge (28) on two neighboring concrete shell elements (35, 36) in that the claws (14, 15, 24, 25) engage in profilings on the frame of the concrete shell elements (35, 36). The stationary claws (14, 15) have archings (18) which engage behind transverse struts (34) or longitudinal struts (33) of a concrete shell element (36). The turnbuckle device (10) is displaceably held on the concrete shell element (36) via the archings (18). If the claws (14, 15, 24, 25) are within the concrete shell element (36), the turnbuckle device (10) can be displaced on the concrete shell element (36) in a longitudinal direction of the transverse strut (34 ) only that far that the turnbuckle device (10) does not project over an outer edge (39) of the concrete shell element (36).

Abstract: A high stability ball-in-cone type latch mechanism is taught that is particularly useful for large deployable optical systems. It provides a nearly perfect kinematic mount between structural or optical elements and can easily be remotely controlled.

Abstract: A quick install positive lock pin for locking a plurality of objects together includes a handle portion which is in communication with a handle housing. The handle housing has an interior cavity within which a shaft member is disposed. The pin also includes a pair of retention mechanisms located in the handle portion that are moveable between a locked position where the mechanism extends outwardly of a slot formed in the handle housing and an unlocked position where the mechanisms extend no further than the outer edge of the opening. The retention mechanisms include a pair of plates that rotate upon reciprocal movement of the shaft member to move the retention mechanisms between the locked position and the unlocked position.

Abstract: The present invention provides for a shroud plate for headgear comprising a shell, an insert, a lock and a release mechanism wherein the shell extends around at least a portion of the insert has a smooth surface with rounded edges and corners and is shaped to match the contour of the headgear. Further, the insert is adapted to receive a lock plate, the lock is adapted to secure the lock plate to the insert, and the release mechanism allows for removal of the lock plate from the insert.

Abstract: An attaching structure attaches a part to a band, and includes a clip for attaching the part to the band. The clip includes a clip main member, which has a lower portion and an upper portion with a gap corresponding to a cross section of a portion of the band where the clip is attached for sandwiching the portion of the band where the clip is attached, and a part engaging portion formed below the clip main member for engaging the part.

Abstract: Methods and systems are provided for a vessel or pipeline closure. A closure 10 includes a hub 12 fixedly and sealingly secured to the vessel, and a cap 30 for threaded engagement with the hub 12. An anchor 22 may be fixedly secured to the hub and a tightening pulling stop 32 and a loosening pulling stop 132 each may be fixedly secured to the cap 30. A connector body 26 may be engaged with the anchor 22, and has a through bore 27 to accommodate a threaded rod 44. A flexible, elongate member 46 may be engaged at one end to the threaded rod 44, and selectively engaged with one of the pulling stops 32 or 132. A threaded collar 28 advances the threaded rod 44 axially, thereby rotating the cap 30 relative to the hub 12.

Abstract: A connection device is provided for meshing of gears on disparate modules, such as those that form a mailing machine. A tongue having a rack can extend from a first module into a cavity formed in the second module. A spur gear is mounted to the second module and can engage the rack of the tongue received into the cavity. A mechanism controls movement of the first spur gear. The mechanism can include a drive gear meshed with the first spur gear and concentrically mounted on one end of a drive shaft with a worm gear mounted concentrically on an opposing end of the drive shaft. Rotation of the worm gear causes the spur gear and the drive gear to rotate and cause movement in the rack received into the cavity and separate or bring together the modules as a result of the movement in the rack.

Abstract: An adjustable key-locked clamp for securing car stereo equipment against a mounting surface. A single rotary lock fixes the adjustable clamping member and secures the clamp to its base. A key is required to release the clamping member and remove the device from its base. Thus, without the key, it is very difficult to remove the car stereo equipment.

Abstract: An easel board support is installed on an easel supporting leg for suspending and supporting objects and the height thereof is adjustable. The easel board support comprises a sleeve and a board support body. The sleeve is capable of being inserted by an easel supporting leg and have two pivotal ears each having through hole. A part of the sleeve at an inner side of the pivotal ear has a slot. An elastic press is formed between the two slots. By a large contact surface between the press piece and the supporting leg, the board support is positioned stably; and by the resisting effect between a resisting block and the sleeve, the board support will not fall downwards. The press can be replaced by a receiving groove formed between the two pivotal ears and a cambered pressing block installed in the receiving groove.

Abstract: The invention concerns a connecting butt strap connecting in series two wire cable trays (10, 20) consisting of two different types of wires, warp wires and weft wires, the connection of said two cable trays (10, 20) being produced via their abutted weft wires (12, 22): it comprises two clip-on means adapted to clip said butt strap (30) on each of the abutted weft wires (12, 22), one of which enables the butt strap to be mounted rotatable (30) on one cable tray (10) and the other enables the two cable trays (10, 20) to be assembled, said butt strap (30) further comprising locking means adapted to co-operate with a warp wire of the other cable tray (20) and to lock said butt strap (30) in its connecting position.

Abstract: An attachment mechanism for connecting a cooling device with a component to be cooled and carried by a connector is disclosed. The attachment mechanism includes a plate, a bore that connects with a portion of the cooling device, a hinge that can be removably hinged on the connector, and a latch assembly that includes tilt relief profiles that allow the latch assembly to pivot on the plate so that a latch profile on the latch assembly can be removably latched on the connector. The latch assembly further includes a spring locator and a spring that are positioned within a slot in the latch assembly and hold the spring pre-loaded in compression. When the latch assembly is tilted on the plate, the latch profile is pivoted outward to facilitate latching onto the connector. After latching onto the connector, the spring is further compressed and exerts a load between the cooling device and the component to be cooled such that contact resistance is reduced and thermal transfer is increased.

Abstract: A releasable fastener formed of a first, male (2), and second female component (4) is provided. Deformable arms (18) on the male component (2) extend back from the lead edge (14) of the body portion of the male component which is inserted into the female. Wedges (24) on the arms lock in apertures (40) in the second component (4). The gap between the arms (18) and the body portion is closed off by an end cap and grip portions on the arms to prevent trapping of fingers. The fastener is particularly suited to attaching nursery items, such as parasols, to nursery equipment such as pushchairs.

Abstract: A clamping system includes a pair of clamps, each of which can be moved along, and rotated 360° about a common grooved rod. A ratchet mechanism locks each clamp to the rod at selected positions thereon.

Abstract: In a releasable locking device, which is useful at a beam-to-column connection in a storage rack, a housing having a lateral wall with two parallel slots has an end wall at an outer end and is open at the inner end, a locking pin having an internal portion movable within and along the lateral wall is movable between a retracted position and an extended position, toward which the locking pin is biased, and an outer sleeve is movable outside and along the lateral wall of the housing and is connected to the locking pin via a connecting pin extending through the locking pin, through the parallel slots, at each end to the outer sleeve. The outer sleeve has an external flange to facilitate pulling of the outer sleeve to move the locking pin toward the retracted position.

Abstract: A tool mount assembly is provided for attachment to the end of an extension pole for pivotal movement of the body of the tool mount assembly on an axis that is substantially perpendicular to the axial line of extension of the extension pole, the body further arranged to secure the end of a tool handle in desired positions of rotational adjustment, whereby a tool supported on the end of an extension pole may be secured in virtually an infinite variety of angular positions for ease of use of the tool at an extended reach on the end of the extension pole.

Abstract: A coupler assembly for axially coupling a hub onto a shaft includes a latch assembly that prevents a locking collar from latching to the hub in a released or disengaged position when the shaft is in the hub. The collar latch assembly includes a latch ring biased eccentrically about the hub and release members when in a released position so as to engage a surface of the hub. When the shaft is inserted into the hub, the release members move to a radially outward position and center the latch ring on the hub. This allows the collar to slide by spring force to a locked position in which the locking members are moved radially inward to engage recesses in the shaft. The release members remain in the radially outward position as long as the shaft is in the hub, thereby preventing the locking ring from engaging the hub and locking the collar in the released position while the shaft is engaged with the hub.

Abstract: An assembly mountable on a machine consisting of an implement provided with opposed pin receiving recesses, a dipper stick connectable to the machine, a first connecting pin mounted in the dipper stick and receivable in one of the implement recesses, a support link pivotally connected to the dipper stick, an actuating link pivotally connected to the support link, a second connecting pin mounted in the actuating link and receivable in the other of the recesses, a base link rigidly connected to the second pin and detachably connectable to the first connecting pin and a fluid actuated assembly interconnecting the dipper stick and the support or actuating links whereby upon operation of the fluid actuated assembly, the pins will be caused to displace relative to each other to permit such pins to be inserted into and withdrawn from the implement recesses for coupling and uncoupling the implement relative to the dipper stick.

Abstract: A connector for connecting a wiper blade assembly to a wiper arm. The connector includes first and second side walls spaced from one another to define a channel therebetween as well as a central bridge and rail interconnecting the first and second side walls. The central bridge and side walls define a pin passage and a rivet passage, each extending transverse to the channel. The rail is vertically spaced from the central bridge to define a tail space between the bridge and the rail. The forwardmost end of the rail is positioned rearward of the pin and rivet passages.

Abstract: Quick fastener system for fixing a tool at the end of a loading arm. The system includes a first part coupled to the loading arm. The first part includes a cradle and a first aperture. A second part is arranged on the tool. The second part includes an element having a hook-shaped extension and a shaft which is adapted to be engaged by the cradle. A locking member is adapted to engage the hook-shaped extension. The tool is movable by the loading arm when the cradle engages the shaft and when the locking member engages the hook-shaped extension.

Abstract: A saw blade chuck includes a blade retaining unit, a biasing unit, and a pushing unit. The blade retaining unit is mounted pivotably on a driving arm of a scroll saw. The biasing unit and the pushing unit are disposed on opposite sides of and act upon the blade retaining unit such that the biasing unit biases the blade retaining unit to pivot to a first position, where the blade retaining unit is adapted to engage one end portion of a saw blade, and such that the pushing unit is operable so as to provide a pushing force for pushing the blade retaining unit in a linear direction to cause the blade retaining unit to pivot against biasing action of the biasing unit to a second position, where the blade retaining unit is adapted to disengage from the end portion of the saw blade.

Abstract: The display device, according to the present invention, is adaptable to use a cartridge of flexible material terminating at each end in a tubular element. The display device comprises a pair of spool-rod means, each one of the pair of spool-rod means including rod means, first handle means axially connected at one end of the rod means, and second handle means outwardly extending at the other end of the rod means. The rod and first handle means are provided with attaching means for detachably connecting the rod and first handle means. The display device exposes text and/or images to be viewed as consecutive incremental portions of the flexible material, which is adapted to be rolled or unrolled.

Abstract: A lock for preventing inadvertent removal of a first frame component from a second frame component of an adjustable storage system. The lock includes a housing having a distal end extending into the first frame component, a shaft having a proximal end and a distal end and being movable between an extended position and a retracted position relative to the housing, with the distal end thereof extending into the second frame component when the shaft is in the extended position and not extending into the second frame component when the shaft is in the retracted position, a head being slender and elongated, joined to the proximal end of the shaft, and extending radially outwardly therefrom, radially outwardly through the housing, when the shaft is in the extended position and the retracted position, and a spring joined between the head and the housing and biasing the shaft into the extended position.

Abstract: A steering column locking mechanism. A stationary tube is provided with a movable tube telescopically positioned over it. A plurality of teeth is provided on the outer surface of the movable tube that mesh with teeth defined on the outer diameter of a ring-shaped gear. The ring-shaped gear has an axial opening defined therein and first and second camming pins capable of being arranged in both an unlocked and a locked position are placed within the opening of the gear.

Abstract: A multi-function latch device which includes a latch base and a latch body rotationally connected to the latch base to rotate about a fulcrum between a latched position and unlatched position. The latch body rotates about the fulcrum to form first and second body portions of the latch body extending in opposed directions from the fulcrum. The first body portion includes a latch fixture rotatable with the latch body between the latched position and the unlatched position for selectively securing a module unit in the base unit and ejecting the module unit from the base unit. In the unlatched position, the second body portion forms a lever arm for inserting or removing the module unit relative to the base unit. The module unit is biased toward the base unit in the latched position to provide a desired electrical connection between connector plugs or plug sockets on the module and base units.

Abstract: The connecting rod (1) for a knuckle joint device with three parallel axes comprises a substantially U-shaped center part (2), whereby the lower transversal branch (3a) thereof constitutes a third articulated axis (X3) of a release device and said branch (3a) is connected at a substantially right angle to the side branches (3b, 3c) and elastic deformation is possible, the side branches extend as far as the upper end thereof by means of segments (3d,3e) that are bent inwards and are parallel to the transversal branch, whereby said segments (3d,3e) display torsional elasticity around the geometric axis thereof such that a rotational return movement is possible on the side ranches (3b,3c) around said geometrical axis and the second axis (X2) of the knuckle joint device.

Abstract: A device for retaining a sheath of a remote control via cable has an attachment molded integrally with a support. The attachment has a base part arising from the support to delimit a housing for accommodating a fitting of the sheath, as well as a cover linked to the base part by a film hinge, in such a way that the cover is able to pivot between an opening position for the insertion of the fitting and a locking position for trapping the fitting. In the position for locking the cover, the end fitting is held in the housing, being immobilized axially and free in rotation.

Abstract: The invention relates to an arrangement for coupling an implement attachment (30) to a working arm (10) of a working machine, wherein the arm (10) is connected to the implement attachment (30) through the medium of fastener sleeves (11, 14) and fastener pins (16, 17). The attachment (30) includes two side-plates (32, 33) which each carry two bushes (44-47) that include holes (56) for accommodating the fastener pins (16, 17). The bushes (44-47) have a circular guide portion (52) which fits into a circular hole (34-37) in respective side-plates (32, 33). The bushes (44-47) include a respective flange (50) which is connected to the side-plates (32, 33) by means of a fastener element (70). The hole (56) receiving respective fastener pins (16, 17) is positioned excentrically in relation to the guide portion (52) in respect of at least two of the bushes (45-47). The invention enables the implement attachment to be adapted readily to mutually different working arms.

Abstract: A device is provided for fastening a first part to a stationary second part, in particular to a part of a vehicle, having a fastening element which can be connected to the first part and has at least one locking element arranged so it cannot be lost, such that it can be brought into a locked position where the first part is joined to the second part and it can also be brought into an unlocked position where the first part is released from the second part, where the fastening element has a top part facing the second part and a bottom part facing the first part, where the top part and the bottom part are designed to pivot about a pivot axis, and the locking element is mounted on the top part.

Abstract: Aid for handicapped persons. The locking system is characterised in that: The additional elements are constituted by half nuts (70, 71) shaped in such as way as to provide in their cooperation position a tenon (92) and mortice type assembly inside an approximately horizontal plane, One of the two half nuts delimits in the tenon (92) an open housing with an axis perpendicular to the assembly plane and into which projects a guiding chute opening towards the front, And the other half nut bears an elastic return thrustor (78) traversing the mortice along a direction perpendicular to the assembly plane and forming a body (79) able to be engaged in the housing and a neck (82) to fully traverse the corridor. Application for stand-up wheelchairs.

Abstract: A pivot joint comprises a receiver supported relative to a first member. The receiver is provided for receiving a second member. The receiver is partially cylindrical. A retainer is adapted to be supported relative to the first member to trap the second member in the receiver. The retainer has an arcuate shaped portion that is adapted to engage the second member. Moreover, the retainer has a resilient portion that is adapted to conform to a portion of the second member.

Abstract: A connector in particular intended for use with a tension leg platform is disclosed. The connector comprises a male part (1) and a female part (2), which male part (1) is designed to engage in the female part (2) and the parts are able to engage with one another without any of the parts having to rotate in respect of the other. The female part (2) comprises an abutment ring having an internal continuous downward facing abutment shoulder (4) and the male part (1) has a discontinuous segmented ring (5). Each individual ring segment (8) is limitary independantly movable, both axially and radially, which segmented ring (5) lies slidably against a mandrel abutment (9).

Abstract: A safety connecting and hooking device for tubular elements, first (2a) and second (2b), particularly for stretcher, includes: a female element (3) whose first end is connected to said first tubular element (2a) and whose second free end has a seat (5) transversally crossed by a hooking pivot (4); a male element (6) whose first end is connected to said second tubular element (2b) and whose second free end has a bracket (7) detachably insertable complementary into said seat (5) of said female element (3), said bracket (7) having the head with a recess (8) in order to house partially said hooking pivot (4); a hook (10) hinged to said male element (6) and detachably insertable, in correspondence of a hooking condition (A) of said tubular elements (2a, 2b), into a slot (9) carried out longitudinally in the bracket (7) for closing partially the opening part of said bracket (7) around said hooking pivot (4); a safety hook (15) hinged to said female element (3) and whose hooking end is fit to engage a hollow (11) of

Abstract: An arrangement for connecting tubular articles, particularly piles and pile sleeves, in which a first tube (4) fits into a second tube (2), the first tube having a first circumferential recess (10) and a second circumferential recess (12), and the second tube has a first set of latches (8) and a second set of latches (8′) which are resiliently biased to engage in the first and second recesses respectively. When the latches and the recesses are mutually engaged, axial movement is prevented by abutments in the recesses and the latches by one set of latches in one direction and the other set of latches in the opposite axial direction. Latching engagement is only possible when the first set of latches is opposite the first recess and the second set opposite the second recess. This ensures positive connection and the use of preferred elements (30) which extend from one set of latches through the outer casing of the second tube. A mechanism can be provided to readily unlatch the tubes.

Abstract: A connecting fitting for releasably connecting two furniture parts is disclosed. The fitting comprises a pin-shaped member that is insertable into a hole in a first furniture part, and a fitting body insertable into a bore in a second furniture part. The fitting body comprises a tightening element. The fitting body is in the form of a circular cylindrical part defined by a curved side wall and a flat side wall. The fitting body is radially displaceable within said bore in the furniture part when not in a tightened position. The pin-shaped member protrudes from the curved side wall when in the tightened position.

Abstract: An integrated separation system and interface structure is disclosed for a variety of deployment applications. In one embodiment, a Universal Spacecraft Separation Node (100) includes a separation nut assembly (102), a separation spring assembly (104) an LV node fitting (106) and an SC node fitting (108). The LV node fitting (106) is connected to a launch vehicle (210) and the SC node fitting (108) is connected to a spacecraft (216). The separation nut assembly (102) holds the fittings (106 and 108) together until separation is desired. Upon separation, the separation spring assembly (104) provides a force to urge the launch vehicle (210) and spacecraft (216) apart. Prior to separation, an annular tongue (224) of fitting (108) mates with an annular groove (226) of fitting (106) to resist shear forces.

Abstract: A steering column locking mechanism. A stationary tube is provided with a movable tube telescopically positioned over it. A plurality of teeth is provided on the outer surface of the movable tube that mesh with teeth defined on the outer diameter of a ring-shaped gear. The ring-shaped gear has an axial opening defined therein and first and second camming pins capable of being arranged in both an unlocked and a locked position are placed within the opening of the gear.

Abstract: A fastening member is either retentively engaging or contacting a one piece member, and includes a biasing slot therein. A screw extends through the biasing slot and engages at least one biasing member on one side of the slot. The screw extends into the other piece, and rotation of the screw draws the first piece and the second piece together.

Abstract: A holding mechanism for a rotating member includes a main member having a rotating shaft; a leg member rotationally attached to the rotating shaft to change from a housed state to a stand-up state; and a stopper formed on the main member at a position away from the rotating shaft. The stopper holds the stand-up state of the leg member. The leg member in the stand-up state can be rotated to the housed state by pushing the leg member.

Abstract: A shock absorber stopper for a bicycle comprises a seat pipe having its top end connected to a seat, and its bottom portion connected to a connecting device for pivoting the top end of a shock absorber by a quick-release connector, and a rear fork coupled to a bracket on the rear end of a cross bar of a frame including the seat pipe to receive a rear wheel thereat. The bottom end of the shock absorber is pivoted to the rear fork of the frame. The connecting device of the seat pipe comprises a stopping unit preventing the shock absorber from disengagement.

Abstract: A paint brush having a removable bristle pack which snaps on and off a handle portion by means of a resilient prong mounted pin. The present invention employs a slot in the ferrule of the bristle pack to receive with a friction fit the pin extending resiliently from the handle. In assembly the handle is merely inserted into the ferrule until the pin snaps into place, and the bristle pack can be removed for cleaning or changing by depressing the pin which will thereby cause the bristle pack to be disengaged.

Abstract: A replaceable top tube includes an outer tube and an inner tube retractably received therein. Two sleeves are respectively connected to the outer tube and the inner tube, and two locking plates are respectively connected to the two sleeves. Two hooks are respectively connected to the inner tube and the outer tube so that when the sleeves are pulled, the locking plates are moved away from the hooks so as to hook the seat post and the handlebar stem of a bicycle. Each of the two sleeves are positioned by a resilient member.

Abstract: A locking system with at least one locking element has a sleeve (2) with an inner groove (3) and an outer groove (4), which lie in a common plane and encircle at least one half of the circumference, the outer groove (4) accommodating a radially pre-stressed spring washer (9) forming an open sector in the circumferential direction between the legs (12) on either side, which are pointedly bent towards the inside and extend through assigned radial openings (5) of the sleeve (2) into the inner groove (3).

Abstract: A electrical device can be snapped onto a support rail by a compression spring orthogonal to a length of the rail and arranged in a cylindrical housing. The housing opens to the outside, opposite the edge of the rail, via an opening in a top adapted to axial insertion of the spring during its assembly and includes an elastic wall capable of transversal movement, with the wall having a bearing surface on a rail edge side on which the spring is buttressed or having another similar bearing surface that can be activated after the axial insertion of the spring.

Abstract: A non-explosive actuator includes a housing, a push rod extending into one end of the housing and a plurality of dogs within the housing. A plunger is inserted into an opposite end of the housing and the push rod is depressed and locked in place. Depressing the push rod causes the dogs to engage the plunger and prevent it from being withdrawn from the housing. Unlocking the push rod eventually causes the dogs to release the plunger and allow the plunger to be withdrawn from the housing. The actuator may be reused after the plunger is removed from the housing. The actuator may be reused simply by re-inserting the plunger into the housing and re-depressing the push rod.

Abstract: An improved slide lock mechanism for a vacuum valve (10) including an end plate or bonnet (42) mounted to an end flange (46) and a pair of slide lock plates (14). An elongated drive shaft pinion (36) drives a rack (52)connected to slide lock plates (14), to linearly shift the slide lock plates into clamping engagement with guide screws (20), thus achieving a tight seal at upper flange (46) and bonnet (42). Elongated drive shaft pinion (36) provides access from above vacuum valve for disengaging, or unclamping, the valve plate and its actuator for repair or maintenance.

Abstract: The invention is a glazing panel wall system having unique and advantageous glazing clips. The clips, several different embodiments of which are described, serve to hold the glazing panels and frame member face covers in place. The system comprises the various glazing clips; interconnected frame members, each frame member having recesses adapted for containing glazing panels and a channel adapted for engaging the clips; and face covers which are placed over the front face of the frame members. The invention thus provides a convenient, time-saving, and very effective way of constructing a glazing panel wall.

Abstract: A fastener which includes an inner collar having an axial bore and a retractable projection projecting into the axial bore when the fastener is in a locked position and retractable out of the axial bore when the fastener is in a retracted position. The inner collar further has a tapered indentation in the outside surface. The fastener further includes an outer collar having an axial bore, the outer collar placed uniaxially and slidably over the inner collar and having a movable protuberance extending into the axial bore of the outer collar. The movable protuberance is shorter axially than the tapered indentation in the inner collar and is positioned in the tapered indentation. The fastener is in a locked position when the outer collar is in its resting position relative to the inner collar in which the movable protuberance is resting in the deepest portion of the tapered indentation. The fastener is in a retracted position when the outer collar is moved axially out of the resting position.

Abstract: A quick coupler for attaching a tool having first and second generally parallel pins to an excavator or the like has a coupler body and a lock plate assembly. The coupler body includes a pair of generally parallel sidewall plates spaced from and generally parallel to each other, and a set of cross members extending generally between the sidewall plates. The set of cross members includes at least first and second cross members spaced from each other and defining a slide port. The pair of sidewall plates defines a first slot facing in a first direction for engagement with the tool first pin and a second slot facing in a second direction transverse to the first direction for engagement with the tool second pin. The lock plate assembly, for releasable securing engagement of the second slot with the second pin, includes a lock plate and a lock pin.