Abstract: A machine tool including an elongate bed with front and rear ends and a longitudinal axis, a spindle with a work piece-engaging chuck at the rear end of the bed, a first motor driving the spindle, a carriage at the front end of the bed, a first drive means with a second motor to position and move the carriage longitudinally of the longitudinal axis, an elongate cross-slide carried by the carriage and carrying a tool holder, a second drive means with a third motor to position and move the cross-slide on a lateral axis, an encoder connected with and reading the rotative position of the spindle, an electric-powered computerized primary controller connected with the encoder and with the first, second and third motors and controlling the operation thereof in response to machining programs stored therein; a rotary cutting tool head including an elongate rotary cutting tool holder driven by a fourth motor is mounted on the cross-slide remote from the cutting tool holder; a second electric-powered computerized contro

Abstract: A torque tool tester machine that includes a reaction means to hold a torque tool to be tested, an electronic torque transducer in rotary driving engagement with a torque transmitting part of the torque tool and a reduction gear train including a manually rotatable input shaft, an output shaft in rotary driving engagement with the transducer, and intermediate shaft and a pair of spur gear wheel with meshed gear teeth on the input and intermediate shafts, a stop plate, an electrically driven operating mechanism to move the stop plate into and out of interfering stopped engagement between advancing and next to meshed gear teeth on the spur gear wheels, an electronic processor connected between the transducer and the operating mechanism and operating to cause the operating mechanism to move the plate into interfering stopped engagement between teeth on the spur gear wheels when a voltage received by it from the transducer is of a predetermined value.

Abstract: An improved and less costly torque wrench adjusting and calibrating structure for accurate axial biasing and adjustment of an elongate axially extending spring in an elongate axially extending tubular lever arm of an adjustable click-type torque wrench.

Abstract: A Torque Tool Calibrating Machine comprising an elongate torque tool engaging transducer including a strain gauge and mounted on a turning axis; an electronic analyzer connected with the gauge and operating to analyze, translate and display the voltage drop across it in torque force units and to emit a control voltage when it operates to display a predetermined maximum units of force, a manually driven gear transmission to turn the transducer including drive and driven gear wheels, a turntable supported on said turning axis and coupled with the transducer, an elongate lever arm projecting radially from the turntable and drivingly coupled with the transmission to selectively rotate the arm, table and transducer clockwise and counterclockwise, and a locking mechanism selectively operable to lock one of the gears against clockwise or counterclockwise rotation and including solenoid-acutated latch units with pawls that engage the gear when the solenoids are energized; a controller circuit connected between the an

Abstract: The Torque Transducer structure comprising a lower base plate, and an elongate torque member projecting vertically upwardly from the plate. The member has rigid upper and lower end portions and a central deflection portion that is rigid through a first radial plane through the structure and is flexible through a second radial plane of the structure which is at right angle to the first radial plane. The central portion of the member carries strain gauges and is torsionally deflected by torsional forces directed onto the upper end portion of the member. The member is subject to adverse lateral deflection through the second radial plane of the structure by lateral forces directed onto its upper end portion. The lower end portion of the member is coupled with the plate against rotation and for free pivotal movement relative thereto through said second radial plane of the structure.

Abstract: A manually engagable, portable and disposable tester for torque limiting and torque indicating screwdrivers comprising a horizontal hand-held plate with top and bottom surfaces, front and rear ends, and opposite sides, an elongate deflection beam with front and rear ends in spaced parallel relationship above the plate, a vertical mounting pin at the front end of the beam engaged in the plate for free rotation and against horizontal and vertical displacement, a driver part with a vertical driving opening to establish rotary driving engagement with a screwdriver and fixed to and projecting rearwardly from the rear end of the beam, a pair of laterally spaced vertical reaction posts projecting up from the plate and in sliding bearing engagement with opposite sides of the beam at the rear end thereof, an elongate horizontal pointer with a rear end fixed to the driver and projecting forward in vertical spaced relationship with the beam and having a front end terminating forward of the beam, and a laterally extendin

Abstract: A dial torque wrench structure including an elongate rigid metal lever arm with a work-related front end and a manually engageable rear end. An elongate resilient metal deflection beam with front and rear ends is positioned adjacent to and parallel with the arm. The rear end of the beam is fixed to the arm. An elongate work-engaging head has one end fixed to the front end of the beam with the axis of the beam and head at right angle. A force-indicating dial mechanism is carried by the arm rearward of the beam and includes a gear-multiplying dial works with an input lever and an output shaft; a dial card with calibrations thereon; and, an elongate pointer on the shaft directed to the calibration and electrically-grounded to the arm. A conductor part adjacent the card with a contact post intersecting the plane through which the pointer moves. An elongate operating rod with front and rear ends is positioned adjacent the beam in parallel relationship therewith.

Abstract: A weighing scales structure comprising an elongate unitary tension rod having an elongate reaction end portion with inner and outer ends and a force-transmitting coupling part at its outer end, an elongate working end portion with inner and outer ends and a force-transmitting coupling part at its outer end, a central elongate elastic portion extending between and integrally joined with the inner end portions of the reaction and working portions; and, a plurality of strain gauges fixed to the elastic portion. The scales next include an elongate housing freely engaged about the central elastic portion and the inner end of the working end portion and releasably clampingly engaged with and about the inner end portion of the reaction portion. A circuit board and a battery power supply are mounted within the housing. The circuit board carries a bridge circuit in which the strain gauges are connected and a light emitting digital readout device which is visible through a window in the housing.

Abstract: An adjustable, click-type, torque wrench comprising an elongate tubular arm with front and rear ends, a work engaging head on an axis normal to the axis of the arm, an elongate lever projecting rearward from the head and freely into the arm, a first pivot pin pivotally connecting the front end portions of the lever and the arm together on an axis parallel with the axis of the head, an elongate link with front and rear ends within the arm, a second pivot pin connecting the front end of the link to the rear end of the lever on an axis parallel with the first pivot pin, an elongate fulcrum block slidably engaged in the arm and freely engaged about the link, a fulcrum pin engaged through the block and the link on an axis parallel with the pivot pins to provide for pivotal movement of the link relative to the block, a plunger in the arm rearward from the link, a cam block with flat faces normally in flat engagement with flat opposing cam seats on the link and the plunger; and a spring yieldingly urging the plunger

Abstract: Improved, manually-operable, adjusting mechanisms for click-type, adjustable torque wrenches which include manually-engageable, resilient, plastic, tubular handgrips slidably engaged about the rear end portions of elongate, tubular, metal wrench lever arms and which are shiftable longitudinally from normal, forward positions in rotary-driving engagement with the arms to actuated rear positions out of rotary-driving engagement with the arm. The invention resides in an improved locking mechanism releaseably locking the grip in rotary-driving engagement with the arm when in its normal position and yieldingly permitting rotation of the grip relative to the arm when turning forces between the arm and grip exceed the shear strength of the material of which the grip is made.

Abstract: Improvements in standard planing knife holders for standard disposable double-edged planing knives which include spring means carried by the holders to engage the bottoms of related knife-receiving channels in related planing knife driving shafts to normally yieldingly urge the holders and their related knives radially outward in the channels and relative to related screw actuated clamping bars within said channels and engaging the holders and knives. An improvement comprises permanent magnets carried by the holders with south poles spaced from opposing rear surfaces of related channels and with north poles contacting and holding the knives assembled with the holders. The improvements also include secondary permanent magnets carried by the holders with south poles spaced from the knives and clamping bars and north poles contacting and holding the holders on said rear surfaces.

Abstract: A torque wrench structure comprising a reduction gear train within a case. The gear train includes an input shaft with an end accessible at the exterior of the case and an output shaft, a work engaging part at the exterior of the case concentric with the output shaft and coupling structure drivingly coupling the work engaging part with the output shaft. A reaction part with a body portion having a central opening freely accommodating said coupling structure is positioned adjacent the case. A plurality of circumferentially and radially spaced locking pins project from the body and engage in lock pin receiving structure in a part to be worked upon by the wrench. A plurality of circumferentially spaced elongate deflection beams project from the body and engaging stops on the case. Strain gauges are fixed to the deflection beams between the stops and the body.

Abstract: An adjustable click-type torque wrench comprising an elongate, tubular arm with front and rear ends, a work-engaging head on an axis normal to the axis of the arm, an elongate link projecting rearwardly from the head and freely into the arm, a first pivot means connecting the front end portion of the lever to the front end portion of the arm on an axis parallel with the axis of the head, an elongate link with front and rear ends within the arm, a second pivot means connecting the front end of the link to the rear end of the lever on an axis parallel with the first pivot means, an elongate annular fulcrum block engaged about the link between the ends thereof and shiftable circumferentially and longitudinally relative thereto and having an annular outwardly disposed bearing surface with diametrically opposite work load transmitting sides engaging diametrically opposite sides of the interior surface of the arm on a central radial plane of the link which is normal to the axis of said pins, the central axis of the