Abstract: A compact, vacuum compatible motorized jack for supporting heavy loads and adjusting their positions is provided. The motorized jack includes: (a) a housing having a base; (b) a first roller device that provides a first slidable surface and that is secured to the base; (c) a second roller device that provides a second slidable surface and that has an upper surface; (d) a wedge that is slidably positioned between the first roller device and the second roller device so that the wedge is in contact with the first slidable surface and the second slidable surface; (e) a motor; and (d) a drive mechanism that connects the motor and the wedge to cause the motor to controllably move the wedge forwards or backwards. Individual motorized jacks can support and lift of an object at an angle. Two or more motorized jacks can provide tip, tilt and vertical position adjustment capabilities.

Abstract: A self-aligning tray carrier for supporting a tray carrying a large group of ICs therein. The invention includes self-aligning, cooperative tray carrier and tray transport configurations to ensure precise, repeatable alignment of a tray carrier with an underlying tray transport through gravity alone when a tray carrier which has been raised off the transport is again lowered into supporting contact therewith. Another, optional, feature of the mutually cooperative configurations of the tray carrier and tray transport permits the tilting of the tray carrier while still supported on the transport so as to effect precise alignment of IC packages carried in rectangular recesses on a tray on the tray carrier with respect to common alignment points (i.e., the same corner of each tray recess) to facilitate repeatability of the IC package surface location being marked on each IC package borne by the tray. Such alignment may be further enhanced by vibration or tapping of the tray carrier while in a tilted orientation.

Abstract: A separating device is provided that includes a wedge-shaped member. The wedge-shaped member has a plate member attached to each tapering side of it, and it may be moved linearly towards its apex. When moved in this way, the plate members move in a direction substantially perpendicular to the direction of movement of the wedge-shaped member. In use, the leading edge of the device is inserted between two objects (one of which may be the ground) and thus, when the plate members are moved apart by movement of the wedge-shaped member towards is apex, the objects are consequently moved apart (or one is lifted).

Abstract: A Mohs tapered handle remover enables a user to remove a bit by rotating a knob on a first end of the device to actuate the device. The knob, through a threaded interface, drives a slide rod outward. The slide rod causes a raising block to separate from a slide seat, thereby driving the bit out of the handle. The device enables the user to use rotational force instead of a direct force to remove the bit.

Abstract: A lift mechanism for controlled lifting and lowering, especially suitable for lifting and lowering a tray of ICs. The lift mechanism includes a horizontally movable drive wedge element having an upper inclined surface and a slave wedge element having a lower inclined surface slidingly supported on the drive wedge element upper inclined surface. Horizontal movement of the slave wedge element is constrained while vertical movement is permitted, so that horizontal movement of the drive wedge element raises or lowers the slave wedge element. A lift structure extending upwardly from the slave wedge element may be employed to engage a tray as, for example, when loading or unloading trays from a transport at a shuttle assembly. A dual-action drive mechanism may move the drive wedge element horizontally, while a dual-action stop mechanism may be employed to limit travel of the drive wedge element at a position short of full vertical extension.

Abstract: To provide a structure supporting apparatus that enables an upper structure to be lifted up to a precise position with respect to a lower structure in a simple and reliable manner and also can be used as a supporting member as it is without fitting any stop members or equivalent, to provide improved workability. In a structure supporting apparatus in which an upper pressure-bearing member and a lower pressure-bearing member is moved relative to each other in the state of being laid one on another to vary the thickness of the upper pressure-bearing member and the lower pressure-bearing member in an overlaying direction, a driving device for driving the lower pressure-bearing member is so constructed that power input from a drive shaft can be transmitted to a feed screw through a reduction gear mechanism including intermediate gear elements.

Abstract: A positioner for an electronic card in a slot, the positioner including a head and at least one leg, the height of the positioner being substantially equal to the width of the slot, the leg being arranged for insertion into an aperture through the electronic card, the bottom of the leg being arranged for alignment with a reference plane of the electronic card and to contact a wall of the slot. Preferably, the positioner includes two legs for insertion into a pair of apertures in an electronic card in a slot.

Abstract: A heat sink assembly, having a number of mounting holes therethrough, is installed on a heat generating surface of an electronic component for removing heat therefrom. A heat dissipating member having a base portion having a bottom surface and an upper surface with heat dissipating elements connected thereto is provided. The bottom surface is adapted to be matable in flush thermal communication with a heat generating surface of an electronic component. A cam assembly includes a support body as well as a connection body that is pivotally connected thereto about a pivot axis. At least one leg is connected to the support body with a retention member on its free end. The leg is routed through a selected one of the base apertures and one of the mounting holes corresponding thereto.

Abstract: The present invention is a locking mechanism which utilizes rolling members positioned on recessed inclined surfaces, the rolling members being biased toward a locked position wherein the rolling members engage both the inclined surface of the locking mechanism and an engagement surface of a member or workpiece disposed above and positioned proximate to the recess. Each rolling member is moved from its locked position to its unlocked position along its respective inclined surface by a lever pivotably mounted to the locking mechanism and engaging the rolling member.

Abstract: An apparatus for precisely, speedy positioning a table on which a work piece is mounted. The apparatus has a moving mechanism in which a linear motion rolling guide unit is employed to convert the horizontal movement of a moving body by a linear motor to the vertical movement. Upon the moving body being horizontally moved with respect to the bed along first track rails through first sliding elements by mean of the linear motor, the working table moves vertically by the action of a second sliding element which moves along a second track rail on an inclined plane of the moving body. The vertical movement of the working table is controlled through third sliding elements so as to be guided along third track rails secured to a cylindrical member on the bed. The working table may make the vertical movement relative to the bed with high accuracy and high speed, irrespectively of loads variable in acting direction and magnitude.

Abstract: A door and window frame adjusting shim sized to fit all common interior or exterior prehung doors and framed windows, preferably factory pre-mounted to the prefabricated door or window casing, comprised of a flat mounting plate and two attached interlocking nested wedge shaped portions, to provide a carpenter or homeowner with a functional, reliable and inexpensive installation shim method, the adjusting shim permits rapid positioning of the door or window, and is especially useful when installing multiple doors and windows into a building.

Abstract: Clampless flooring tool includes a base, a wedge sidewardly guidable by and in slidable contact with the base, and a force applying device secured to the base and in contact with the wedge, which drives the wedge sidewardly. The wedge provides a force oblique to the force applied from the force applying device such that a flooring piece can be acted upon by the oblique force in a direction oblique to the direction of the force applied by the force applying device. An obliquely movable member, which, in addition, may be sidewardly immovable, may be provided between and in contact with the wedge for contact with the flooring. The tool is especially useful in installation of laminate flooring.

Abstract: A plastic shim or other work piece useful in the construction industry is provided and is an elongated tapered hard plastic body incorporating qualities of a shim lacking in wooden shims. Each shim has transverse breakable lines so that segments can be broken off to adjust its length. For handling, a plurality of such shims are molded in a sheet with adjacent shims being spaced along their thinner sections but separably joined by longitudinal, manually breakable lines extending along their thicker sections, whereby the shims can be detached from the sheet either individually or in multiples. The shims have pockets defining nailing portions of reduced thickness which minimize the grasp of nails by the shim and allow removal of nails without damage to the shim or adjacent wood and etching to avoid uncontrolled slippage.

Abstract: An apparatus which reduces arm, wrist and shoulder stress and pain while using a computer mouse device. This apparatus includes an adjustable working surface which is capable of aligning the angle inclination as well as the angle of rotation of a mouse device user's hand, wrist and forearm with respect to the stationary working surface of the structure on which the apparatus is resting while operating the mouse device. The apparatus is adaptable to fit any adult size and is capable of use with either the left or right hand.

Abstract: A multistage wedge-shaped jack apparatus is provided for jacking up and maintaining a heavy structure for mounting and replacing bearing units interposed between the heavy structure and a lower base while considerably increasing the jack amount without increasing the overall length of the apparatus. A wedge-shaped drive member (1) and a wedge-shaped pressure receiving member (2) are laminated on a base plate (3) and brought into contact with each other with the respective slant surfaces (11) and (21). A push/pull drive device (6) is provided in cooperation with a reactive force receiving device (5) for limiting a movement of the wedge-shaped pressure receiving member. A single or a plurality of auxiliary wedge-shaped members (7) are provided to the wedge-shaped drive member to be detachably coupled with each other in order.

Abstract: An improved timber wedge featuring an elongated wedge shaped body formed of natural materials such as wood or plastic or other synthetic material. The wedge shaped body is protected from hammer blows incurred during use by a removable impact protection cap mounted upon the striking end of the wedge which also reinforces the wedge body at the impact end. The cap is held to the body by a screw therethrough which friction mounts to cooperating threads in the wedge body interior or cooperatively engages a nut in an in line relationship with the screw and accessible from the side of the wedge. Releasable glue may also be used to hold the impact resistant cap to the wedge shaped body.

Abstract: A mechanically adjustable wedge assembly including a cruciform-shaped driver and mating idlers applies force in multiple directions simultaneously thereby achieving the effect of several wedges in a single unit.

Abstract: A method of raising/supporting a bridge or the like on a lower structure involving sliding an upper wedge-shaped pressure receiving member having a slope on its lower face and a wedge-shaped drive member having a slope on its upper face relative to each other on their slopes by drive mechanism for driving the wedge-shaped drive member, to raise the upper face of the upper wedge-shaped pressure receiving member with respect to the lower structure. The method further involves regulating the upper wedge-shaped pressure receiving member and the wedge-shaped drive member from their relative movements after the bridge has been raised. The method further involves removing the drive member after the regulation of the relative movements of the upper wedge-shaped pressure receiving member and the wedge-shaped drive member.

Abstract: A device adapted to stabilize an article of furniture on a support surface is formed as two wedge-shaped pieces so constructed that they slide into each other thereby causing a furniture leg to be raised or lowered. The mechanism for holding the two parts together is such as to prevent them from coming apart or being forced apart by the weight of the supported object. The construction material is stiff, yet flexible and resilient, to help stabilize the article of furniture, and may be an anti-skid material. The upper surfaces of the device deviate from a plane so as to provide a very small height correction without compromising stability.

Abstract: A fish tape puller has a handle connected to a body member having a first bearing surface. The handle extends on either side of the body so the handle can accommodate a two-handed grip. A clamp block slidably mounted on the body presents a second bearing surface opposite the first bearing surface to define a slot for receiving a fish tape. An interlocking key and groove in the clamp block and body extends obliquely to the slot. An actuating handle pivotally mounted on the body and connected to the clamp block causes the block to move in the groove, opening and closing the slot with a self-locking wedging action. The bearing surfaces are elongated to prevent damage to the fish tape.

Abstract: A levelling apparatus for use between a structural frame member defining a first plane and a supporting member defining a second plane, vertically adjustable between raised and lowered positions, comprising a base section having first and second inclined surfaces, a top section having first and second inclined surfaces, and first and second pairs of half wedge members disposed intermediate the base and top section, the half wedge members having inclined faces mating with the complementary surfaces formed on the base and top section. A threaded rod is disposed longitudinally within the levelling device, passing through the pairs of half wedges members and brackets engaging the back sides of the half wedge members, with nuts threadingly engaging each end of the threaded rod. Rotation of one or both nuts causes longitudinal translation of the half wedge members and resulting vertical adjustment of the levelling device.

Abstract: An adjustable base assembly for selectively adjusting the horizontal and vertical position of a fabricating tool such as a punch or metal forming tool. The apparatus includes a generally planar base and a carriage assembly positioned on the base. The carriage assembly includes a lower wedge plate assembly having an upper surface defining a pair of upwardly converging wedge faces, an upper wedge plate assembly having a lower surface defining a pair of downwardly converging wedge faces, a pair of wedge blocks each having converging upper and lower wedge faces for respective sliding engagement with one of the upwardly converging wedge faces and one of the downwardly covering wedge faces, and a vertical adjustment screw mounted on the lower wedge plate, passing through the wedge blocks, and including left and right threaded portions for respective threaded coaction with a left threaded bore in one of the wedge blocks and a right threaded bore in the other wedge block.

Abstract: A so-called rescue spreader is constructed with a pair of replaceable jaws that are mirror images of one another and are operatively positioned back-to-back. Each jaw is generally a triangle having a back side and a front side, with both sides extending from a base and converging at a tip where the sides define an included angle of approximately 20.degree. to 30.degree.. Corrugations on the back side are provided to reduce slippage. The front side along its half length extending from the tip is provided with a plurality of teeth and a circular cam is provided along the other half length of the front side.

Abstract: Device comprising a wedge-shaped lower part; both sloped faces of the wedge are covered by a channel, the lower face of which is in contact with the corresponding sloped face of the wedge that it covers; the wedge is driven between the two channels toward the items to be separated or the work-piece to be lifted; the channels are linked to the driving system of the wedge by connecting rods comprising articulation pivots; elastic means maintain the channels in contact with the sloped faces of the wedge.

Abstract: A post driver assembly for driving square wood posts comprising a grip retainer plate having a rectangular plate hole centrally located in the plate which is oversized compared to an outside dimension of a square post. A post driver wedge is provided with a flat side for flush engagement with a post side when the post driver wedge is telescoped through the rectangular plate hole. The post driver wedge has a tapered side opposite to the flat side slidingly engageable with an edge of the rectangular plate hole for ensuring snug engagement of the flat side against the post. A screw is threaded through the wedge for attaching the wedge to the post to anchor the wedge to resist vertical slippage of the wedge relative to the wooden post.

Abstract: An improved wedge for the felling of trees. The wedge is of a synthetic material and has a metal insert integrally molded at its base or head end. The insert, which is molded flush with the head end of the wedge body receives the impacting blows of a driving tool and protects the head end of the wedge from damage. The insert integrally molded within the body of the wedge permits the wedge to be tapered along its full length.

Abstract: A table leveling wedge for eliminating wobble from tables with or without glides, includes a solid block of material having an inclined top surface. A cavity formed in the top surface extends from the forward end of the block to an extent adjacent the rearward end, which cavity is defined an inclined support surface and a pair of longitudinally extended and transversely spaced apart abutment surfaces adapted to confine a table glide between them. The portions of the wedge transversely outwardly of the abutment surfaces extend forwardly of the cavity support surface to partially define a pair of feet which are advantageously used to guide a table glide between them and center the wedge relative to a glide to be supported on the wedge.

Abstract: A driven shaft is provided having a free end portion upon which a drive wheel is mounted for rotation relative to the driven shaft and for shifting longitudinally therealong between first and second positions. Drive structure is provided for drivingly connecting the driven shaft to the wheel when the wheel is in the first position thereof and which ineffective to maintain the drive connection between the shaft and the wheel when the wheel is in the second position thereof. Structure is provided for yieldingly biasing wheel the wheel toward the first position thereof and the wheel shaft include axially spaced abutment surfaces between which the narrow end of an elongated wedge is disposed, the elongated wedge being mounted from the shaft for longitudinal shifting of the wedge radially of the shaft.

Abstract: A typical wood splitting wedge which has been modified to provide a retractable penetrating point capable of being extended beyond the wedges cutting edge to assist in the introduction the wedge into the grain of the wood.

Abstract: A relatively thin bend formed shim tool formed of sheet metal, or plastic, is provided to help a locksmith view and have access to lock release mechanism of a locked vehicle door from the outside when the vehicle door key is lost, or left inside the vehicle. The tool insert sheet portion is inserted downwardly between the outer surface of the door window glass and the outer window sill rubber seal to hold the rubber seal deflected back out of the way when two wedges are pushed down between the door window glass and the tool insert sheet at opposite ends thereof. The tool has a curved back bottom edge at the lower edge of the insert sheet portion that depends from a rounded top that spans a portion of the door outer sill rubber seal to an outer diverging outward sheet continuation to a further outwardly extended handle.

Abstract: The apparatus comprises a framework (8) adapted to be fixed to the platform (3) of an industrial vehicle and on which a substantially horizontal loading level surface (14) is defined. Distributed along the opposite ends (11, 12) of the apparatus framework are first and second cog wheels (2, 4) operable in rotation and operatively engaging respective roller chains (15) exhibiting each a dragging portion (15a) extending longitudinally to the loading level surface (14). The dragging portion of each chain is slidably supported by a slidable guide (22) movable along a slot (23) longitudinally formed in the loading level surface so as to bring the dragging portion from a rest position in which it is disposed below the loading level surface to a working position in which it slightly projects upwardly from the loading level surface.

Abstract: In a method for displacing forces, particularly loads (P), either a force (P) acting on a guide surface (23) is reduced by an opposing force and simultaneously displaced, or a pressing force (P) is caused to act on a guide surface (23) in order to produce a displacing force (P2). In order to reduce the frictional resistance of the force (P) on the base (A, B) on which it acts, this force can be reduced by an opposing force and the force then displaced. The opposing force is produced, for example, by a known self-guided membrane cell (20) or a piston. Part of the force is supported displaceably on a wedge surface (23). This method permits advantageous displacement of forces, particularly loads, in opposition to friction forces.

Abstract: According to the invention, a felling bar to be used in tree felling has a handle 11 in one end and a lever plate in the other. To make is usable for driving wedges into a sawn cut, the felling bar is provided with a striking lug 17 fastened to the shaft 10 of the felling bar at or close to the connecting portion 15 joining the lever plate 12 to the shaft 10.

Abstract: The tool includes a base having an adjustment wedge, a counter wedge slidable on the inclined surface of the adjustment wedge, a plurality of roller bars in a recess on the upper surface of the counter wedge and a cover member supported by the roller bars. A power screw is used to horizontally displace the adjustment wedge to elevate the counter wedge, cover member and, hence, the load. The plurality of roller bars are confined within a recess to constrain relative movement of the cover member and the counter wedge. To release the cover member for movement, roller bars of reduced diameter at the opposite ends of the wedge are removed to permit the cover member to move relative to the counter wedge. Horizontal adjustment screws cooperate between the cover member and the base to precisely control the movement.

Abstract: A deformable shim assembly for positioning a closure unit in building framework defining a rough opening. The system includes a plurality of flexible, generally identical shims each having a cylindrical surface curvature to provide a convex outer surface and a concave inner surface. The forward end of each shim is tapered and is defined by side edges with an angle of intersection bisected by the axis of symmetry. The side edges also define a plane that intersects the cylindrical outer and inner surfaces at an acute angle to define a wedge-shaped space. The space has a transverse cross section in the shape of a circular segment that diminishes progressively toward the forward end of the element.

Abstract: The present invention provides a method and an apparatus for removing a staple from a stack of sheet goods bound by that staple. The stack of sheet goods is clamped, and the staple is directly engaged at both the crossbar and the clinched legs. The clinched legs are substantially straightened, and the staple is removed by pulling the crossbar away from the stack of sheet goods and the substantially straightened legs through the stack of sheet goods.

Abstract: A splitting tool comprising a splitting head mounted on a handle. The splitting head comprises at least two relatively rotatable wedges, at least one of which is also freely rotatable with respect to the handle. Each wedge has a front edge for striking and penetrating an object to be split. The freely rotatable wedge has a lobe rearward of the front edge and a center of mass located in the lobe, the center of mass being offset from the axis of rotation of the freely rotatable wedge. The offset center of mass creates a force moment about the axis of rotation. The force moment has a first rotational sense tending to align the front edges of each wedge along a common plane when the splitting head is impelled toward the object and a second and opposite rotational sense tending to separate the front edges of each wedge when the splitting head strikes the object, thereby applying splitting forces to the object in directions generally perpendicular to the common plane.

Abstract: The present invention relates to a method of raising a structure while sustaining very large pressure due to same and then tmeporarily supporting the structure, and a wedge-type jack apparatus for use in the method. The wedge-type jack apparatus comprises a wedge-like drive member, an upper member and a lower member, these three members being disposed in a frame body such that the drive member is sandwiched between the upper and lower members in a laminated manner. A slide plate rests on the upper member. When the wedge-like drive member is pushed in a lengthwise direction, the upper member and the wedge-like drive member are moved up to raise the structure overlying the slide plate, while keeping the current condition unchanged. Upon the structure being raised up to a desired level, this level is maintained by stopper means which restricts movement of the wedge-like drive member. Thus, the wedge-type jack apparatus supports the structure while transmitting the load of the structure to a substructure.

Abstract: The door forcing apparatus for forcing a door set in a door jamb comprises two side rails each having a substantially L-shaped cross section engagable with a beveled edge between the door jamb and the door, a plurality of nearly flat drive wedges pivotally mounted on the side rails adjacent their vertices each having a nearly flat foot oriented parallel to the door pivotally mounted adjacent their circular-arc-shaped edge pressible against the door, two adjustable braces each of which comprise a bracing hydraulic cylinder or a turnbuckle which is pivotally attached to each of the two side rails adjacent one end of the apparatus, two U-shaped-cross-sectioned drive rods on each of which the drive wedges connected to the side rails are pivotally mounted and two driving hydraulic cylinders, each of which has a piston rod pivotally attached to an end of one of the drive rods and whose cylinder is pivotally mounted on a support bracket at one end of a side rail.

Abstract: Projections are provided on the clamp portion of a formwork lock. The projections are spaced from inwardly extending inclined surfaces of the claws of the clamp. The projections engage the outer sides of the corners of the flange of a formwork panel frame, while the inwardly extending surfaces on the claws engage complementary surfaces of the framework panel frame.

Abstract: A device adapted to stabilize an article of furniture on a support surface is formed as a wedge-shaped main body having upper and lower surfaces diverging from a common vertex to an end surface. A plurality of transverse rib teeth are on at least one of, but preferably both of, the upper and lower surfaces so that a plurality of devices may be stacked with the teeth preventing longitudinal slippage. The construction material is stiff, yet flexible and resilient, to help stabilize the article of furniture, and may be an anti-skid material. A cavity may be provided to enhance selected flexing, and ridges may be provided to prevent lateral slippage. The upper and lower surfaces have a common radius of curvature and may be planar or, respectively, convex and concave. The upper and lower surfaces may come together at a point, a line or a blunt nose to define the vertex. A bore may be formed through the body member for mounting and carriage.

Abstract: The present disclosure is directed to a log splitting sledge. The sledge has a cutting blade projecting from a lower face of the head of the sledge. One face of the blade is integral with a side face of the head and extends at an angle of about 12 degrees of the handle. The angle is a result of either a bend in the handle or the handle being mounted in the head at a non 90 degree angle. The sledge is first used to drive one or more wedges in a log, partially splitting the log. The head of the sledge is then forced down into the partially split log, the log standing on end and the handle protruding upwardly. Then the sledge handle is moved through an arc having the blade edge as a pivot line to complete the splitting of the log. If any slivers are holding the split portions together, the sledge can be then used as a vertical axe with the front cutting edge slicing through the slivers.

Abstract: A locking wedge apparatus for fastening a printed circuit board within an elongated slot in a rack. The apparatus includes an elongated center wedge having sloped surfaces at its opposite ends and two end wedges abutting against the center wedge's opposite sloped surfaces. A screw interconnects the two end wedges, threadedly engaging a threaded bore in the remote end wedge. A friction nut is positioned on a portion of the screw's remote end that projects beyond the remote end wedge, and the apparatus is configured to include a pair of low-friction, abutting surfaces between the nut and the remote end wedge. This ensures that when the screw is fully loosened, the frictional torque applied to the nut by the end wedge is exceeded by the frictional torque applied to the nut by the screw. Further unthreading of the screw is thereby effectively inhibited.

Abstract: A metal frame system for use as a door frame, window frame and the like utilizing vertical frame members adapted for attachment to wood or steel studs, employs unique wedge member sets comprising pairs of complementary shaped wedges. Each of wedge members has two wedges of generally congruent shape but having inverted interface surfaces, one such interface surface abutting the other in compressive contiguous relation whereby to fill the space between the vertical member and the underlying wood stud. Linear movement of one wedge relative to the other provides an expedient adjustment capability for fitting the frame system into the study assembly. Rotation of one wedge relative to the other provides a convenient way of compensating for irregular wood or steel stud surfaces that might otherwise prevent proper orientation of the forms relation to the studs.

Abstract: A trench assembly usable in floor structures of the type requiring one inch of concrete fill over the crests of metal cellular flooring. The trench assembly includes opposite sides and one or more end-abutted cover plates spanning the distance between and supported by the opposite sides. Each side comprises a side rail, a base member, and horizontally displaceable adjustment means, in the form of wedge means, for vertically displacing the side rail relative to the base member. The side rail, the base member and the adjustment means have a combined height of about one inch (2.54 cm) and are capable of a vertical adjustment of one-half inch (1.27 cm).

Abstract: The Multiplier comprises a housing in which is set a base having an elongate trackway therein. An open-center frame is set upon the base above the trackway, and a lifting block is set upon the frame to elevate whatever is set upon it. Within the trackway are disposed a piston-hydraulically-operated power wedge, a pressure wedge which contactingly engages the lifting block, and a wedge-shaped separator plate between the pressure wedge and the power wedge. Asperities, in the form of graduated steps, are formed in the mating surfaces of the lifting block, and frame, and pressure wedge and lifting block. Hydraulic operation of the power wedge, in cyclic translations, causes the pressure wedge, through the separator plate, to raise the lifting block slightly above the frame, in each stroke, and a compression spring advances the pressure wedge to receive the lifting block thereupon. A spring also advances the pressure wedge, with each cycle, to position if for another lift of the lifting block.

Abstract: A forcible entry tool apparatus is provided for use by firemen and the like for forcible entry into vehicles or structures to assist in rescue operations. The tool has a base with a prying foot movably attached to the base with a pin acting as a fulcrum point for movement of the prying foot. The handle is attached to the prying foot for moving the prying foot on the lever pin on the base and a stabilizing arm is removably attachable to the foot for bracing the foot while the handle is being operated to move the prying foot on the fulcrum pin. Both the handle and the stabilizing arm are telescoping members. The stabilizing arm has a bracing foot attached to one end and is attached to the base with a positioning bracket. The prying foot can have the fulcrum pin positioned at different points for different operations and the handle can be positioned in different positions relative to the foot for proper leverage for prying open doors and the like.

Abstract: A device for force-opening doors, comprises an anchoring member including two sections relatively movable from a retracted position permitting the anchoring member to be applied between the doorframe posts on opposite sides of the door, to an extended position bringing the opposite ends of the anchoring member into firm engagement with the doorframe posts to firmly anchor the anchoring member transversely across the door; and a ram member carried by the anchoring member for engagement with the door when the anchoring member is anchored to the doorframe transversely across the door. The ram member includes a hydraulic device for producing a large force against the door to force-open it; and the anchoring member also includes a hydraulic device for moving the two sections of the anchoring member into firm engagement with the doorframe posts.

Abstract: A wedge assembly that is easily inserted between two surfaces to be supported thereby, and thereafter expanded to produce a selected spacing between those surfaces. This wedge assembly has two outer members that are substantially identical except that they are mirror images of each other. Oppositely directed faces of these of these outer members are substantially parallel for the purpose of contacting the surfaces to be separated. The outer faces of these outer members that are directed toward each other are tapered so as to contact a center member having complementary tapers on both faces. A washer member is provided to contact a common end of the outer members, and a bolt member penetrates this washer and is threadably received in a receptor of the center member. As the bolt member is threaded into the center member, the center member is drawn further into the gap between the outer members and thereby separates these outer members to contact the surfaces to be separated.

Abstract: An adjustable base assembly for selectively adjusting the horizontal and vertical position of a fabricating tool such as a punch or metal forming tool. The apparatus includes a generally planar base and a carriage assembly positioned on the base. The carriage assembly includes a lower wedge plate assembly having an upper surface defining a pair of upwardly converging wedge faces, an upper wedge plate assembly having a lower surface defining a pair of downwardly converging wedge faces, a pair of wedge blocks each having converging upper and lower wedge faces for respective sliding engagement with one of the upwardly converging wedge faces and one of the downwardly covering wedge faces, and a vertical adjustment screw mounted on the lower wedge plate, passing through the wedge blocks, and including left and right threaded portions for respective threaded coaction with a left threaded bore in one of the wedge blocks and a right threaded bore in the other wedge block.