Abstract: A mechanical power amplifier for a vise having housing means and a primary member and a secondary member mounted therein. At least the primary member is movable in the housing and transmits a force to force amplifying and transmitting structure also mounted in the housing to effect both an amplification of the force transmitted thereto as well as a transfer of the force from the primary member to a force transmitting member. The force amplifying and transmitting structure includes a pair of bell-crank levers arranged in a mirror-image manner relative to the center axis of the housing. Each bell-crank lever has a long lever arm with a wedge surface thereon and a short lever arm. The wedge surface engages a cam surface on the primary member and is movable laterally in response to a movement of the primary member. A pair of laterally spaced rollers are positioned on opposite sides of the center axis of the housing and engage the short lever arm and an abutment surface on the secondary member.

Abstract: An actuator for a valve in which valve opening and closing is effected via a rectilinearly movable member having, at one end, a driving device and, at its other end, a return-movement arrangement. To-and fro movement of the member under the control of the driving device and return-movement arrangement opens or closes the valve, or vice versa.The return-movement arrangement includes a ramp connected to the member and a resilient energy storing cushion for acting oppositely to the driving device on the member with a bridging roller transmission rolling contacting the ramp so that, depending on direction of movement of the member, energy is either stored in or dissipated from the cushion.

Abstract: A hydraulically actuated ejector mechanism is mounted on a press bed and includes a pair of opposed cams connected to the press slide for vertical displacement therewith. The cams actuate corresponding followers in the form of hydraulic pistons which operate together to hydraulically displace an ejector member during upward movement of the slide following a metalworking operation. The cam contours enable timing the ejector pin displacement with the press slide stroke so as to achieve optimum acceleration and deceleration of the stroke of the ejector pin.

Abstract: A manual operator for a pushbutton control device includes a cover having protected space surrounding an opening receiving the pushbutton. The cover further includes a raised stop surface adjacent the protected space. A lever actuator is pivotally mounted to the cover so as to concurrently overlie the pushbutton and the stop surface when in a nonoperating position. The actuator is moved into alignment with the protected space and is depressed to assume an operating position.

Abstract: In a stock-piercing punch mechanism which includes a base having a punch-receiving bore, a punch having a stock-piercing tip positioned for reciprocal movement in said bore, and a cam trigger pivotably mounted on said base which is adapted to receive a stock-piercing force from a press ram or the like to cause the trigger to pivot and to transmit the force to the punch to move the punch out of the bore to pierce properly positioned stock, the improvement which comprises, a lubrication reservoir located in the base adjacent the punch so that as the punch moves in the bore it picks up and distributes the lubricant to reduce frictional wear of the punch and the bore. In the preferred embodiment the punch is removably attached to a punch plate positioned within the punch mechanism so that the punch can be readily removed and replaced with other punches having the same or different shape and size stock-piercing tips.

Abstract: In a wedge-type vehicle brake actuator with a cage assembly unattached to the wedge member the travel of the cage assembly is limited by an engagement with one follower member. With an assymetric cage assembly the assembly of the cage assembly into the housing is prevented by an engagement with a follower member when the cage assembly is assembled the wrong way.

Abstract: In a shear machine, the lower or fixed knife which is installed in a bed or table, which, in turn, is slidably supported on the front sloping edges of the machine housings, is adjustable horizontally with respect to the upper or movable knife by a power actuated wedge assembly installed frontally, in position to elevate the bed or table along the sloping edges, to reduce the horizontal spacing between the knives. Adjustable horizontal increase of the spacing between the knives is accomplished by adjustably lowering the bed or table along the sloping edges of the side wall housings, utilizing power in cooperation with the pull of gravity to accomplish this.

Abstract: An actuator for reciprocating stem control valves having a linkage system affording variable force, reversible action, and adaptability to different valve strokes.

Abstract: An operating rod comprising a foot pedal assembly is carried on a first movable body and is maintained in vertical axial alignment with a control means grounded to a second movable body. The operating rod maintains operative association with the control means regardless of divergent movement between the first and the second movable body.

Abstract: The apparatus comprises a leverage including at least two parallel arms pivotally mounted at their central portions, having one pair of the ends threof spread by the end piece of a driving rod and actuated, for instance, by a solenoid. The opposite pair of ends of the arms is operatively connected with a driven rod by means of wedge type engagement. Rollers are interposed between the contact surfaces of the arms and the respective rods. The mechanism cuts down the amount of energy required for transmitting a command, offers fast action and reliability.

Abstract: A drive for a filament guide wherein reciprocatory motion of a first member is transferred to the filament guide via a gear mechanism to give a predetermined amplification factor.

Abstract: A pushrod-to-bellcrank attachment includes a primary pivot connection and two secondary pin and slot connections so arranged relative to each other that there is a continuing operative connection of the pushrod to the bellcrank in the event the primary connection is lost by small arms fire. When the primary pivot is lost, the pins of the secondary connections act in conjunction with the slots, which are arcuate, as a large bearing struck about the primary pivot to maintain the rod and the bellcrank in their original relative positions about the primary pivot with no introduction of lost motion between bellcrank and rod.

Abstract: A synchronizing mechanism comprising at least two flat strips of friction material (bristles) co-acting with at least one intermediate member formed by an endless belt of friction material (bristles) having belt supporting means. When the strips are moved longitudinally or linearly relative to each other, the endless belt also moves longitudinally between said strips. With such movement, the bristles at the looped ends of the belt progressively roll into and out of engagement with the bristles of the strips. However, the parts of the band intermediate the ends thereof, frictionally resist linear or longitudinal movement between said strips thereby synchronize movement between said strips.

Abstract: In an actuator assembly for a vehicle brake a follower member normally operated by a wedge to apply a brake comprises a pair of hydraulic pistons working in a common bore in a housing, and the housing is provided with a supply port communicating with a pressure space defined between the adjacent ends of the pistons which abut when the wedge is displaced, and with an abutment face with which the innermost piston is engageable when the wedge is in its retracted position and the pressure space is pressurized.

Abstract: A brake assembly is disclosed in which a first pivoted lever receives and transmits brake actuating force to a second pivoted lever via tapered rollers. As the first lever is pivoted, a force is transmitted from a point which moves along the first lever to a point which moves along the length of the second lever so as to provide an increase in the mechanical advantage of both levers. In addition, the point of force application moves along the axis of each tapered roller to increase the rate at which the second lever moves to apply the braking force.

Abstract: Mechanical brake of the pad and disc type having sure braking action, low internal friction and rapid release characteristics, and comprising a control cable responsive, movable rigid member having a directionally sloped shoulder, and follower structure having traveling tangential engagement with the member shoulder, to displace the pad into engagement with the disc for braking.

Abstract: A fluid pressure brake unit with a fluid piston actuated wedge that moves a brake push rod in a direction perpendicular to the piston stroke has provided therein a forked wedge astraddle the push rod that engages on opposed wedge surfaces respectively two rollers placed on opposite sides of the push rod and two rollers affixed to the brake unit housing. For hand brake use, a rotatable member has a cam head engaging the push rod assembly to move it independently of the wedge action.

Abstract: In a wedge actuator the inner end face of one tappet which co-operates with the wedge member is made normal to the axis of movement of that tappet, and the line of action of the wedge member is inclined to the plane of that end face.

Abstract: A gate motion mechanism for continuously driving an arm to perform a gate motion, or a combination of two or more differently directed rectilineal motions, has a cam groove or grooves of a contour corresponding to the path of motion the arm is to follow, and a guide roller or rollers integrally connected to the arm, each of the roller being fitted in the cam groove and linked to a driving mechanism via a lever for sliding movement along the groove.

Abstract: A device for regulating the delivery per revolution of an internal combustion fuel injection pump comprises a pusher movable by a governor responsive to the engine speed, a sleeve connected to a control rod for adjusting the pump delivery and means operatively coupling the pusher and the sleeve. The latter means comprise a retaining element on which the sleeve is slidable and which has an inclined surface, balls disposed between the inclined surface of the retaining element and an inclined surface of the pusher, the two inclined surfaces converging in a direction parallel to the pusher axis. The retaining element is adapted to engage at one end with a resilient abutment associated with the governor, and an entraining member which moves with the sleeve is provided for transmitting axial movements of the balls to the sleeve.

Abstract: A transmission device has input and output members interconnected by two transmission members. One of the transmission members has only Restricted movement in either direction, and relative movement between the transmission members is necessary for movement of the output member. A pair of brakes are operable by movement of said one transmission member to prevent movement of the other transmission member in respective opposite directions. The arrangement is such that operation of the brakes by one transmission member in response to movement of the input member does not prevent movement of the other transmission member, whereas operation of the brakes in response to movement of the output member arrests movements of the other transmission member.

Abstract: A linkage for pulling a valve stem against resistance of a compression spring comprises three link members; a first link member coaxially fixed to and extending from the stem, a second member pivoted at an end to the extending end of the first member and a third link member pivoted at an end to the second member at an intermediate point of the second member and pivotally mounted on a fixed shaft at the other end. An actuator exerts a constant force on the free end of the second link and rotates the second link about both the pivots for the first and third links, resulting in pulling the valve stem with a progressively increasing force.

Abstract: A device for position stabilization of a take-off and landing platform for aircraft, which comprises a forcibly-guided parallelogram linkage adapted to be rotatably mounted on a mobile carrier, a take-off and landing platform rigidly connected with and parallel to the upper parallelogram part, and an operating device rotatably connected at each end between the carrier and one of the side parts of the parallelogram linkage.

Abstract: An abutment assembly for an internal shoe drum brake, particularly a vehicle wheel brake, comprising a pair of opposed abutment members for engagement with respective ends of the brake shoes and an arrangement for transmitting only part of the input force applied to one abutment member, to the other abutment member. The arrangement comprises a plurality of individual force-transmitting members each pivotally supported between and engaging the said one abutment member and an output member coupled to the other abutment member.

Abstract: An actuator has force amplifying means coupled between piston and piston rod. The force amplifying means may be a mechanical linkage, a system of screw threads, or a hydraulic arrangement utilizing differential piston areas and may lock the piston rod at one or both stroke extremities. The mechanical advantage of the force amplifying means may vary during the stroke.

Abstract: A mechanism for the actuation of an adjusting device such as, for example, a fresh-air flap in a motor vehicle, in which the adjusting member is operatively connected with at least one rotatable lever and the lever cooperates with an actuating member which is displaced along a rectilinear guide path; the actuating member is constructed fork-shaped for the entrainment of the lever and the entrainment takes place by way of a roller, rotatably supported at the lever, which in one end position of the adjusting member is supported with prestress at a prong of the fork-shaped actuating member.

Abstract: An automatic hydraulic hammer including a frame with suitable mountings to attach the frame to an existing hydraulic feed test boring drill machine. A weighted hammer is reciprocal within the frame through a measured distance and is arranged for substantially frictionless operation. A hydraulic cylinder mounts upon the frame and receives its power from the hydraulic test boring drill machine. A plunger is responsive to function of the hydraulic cylinder and terminates downwardly in an arrow-shaped head which releasably connects to a plurality of pivotally mounted clamps. When the head engages the clamps, the hydraulic cylinder is functioned to raise the plunger and the releasably attached hammer through a known distance. The top of the frame is provided with a plurality of depending fingers which function with the clamps to quickly and positively release the head at the top of the hammer travel.