Abstract: A cap removal device is provided for a cellular sample treatment apparatus. The device avoids the necessity to manually remove a cap and allows an automated sequence of steps to be carried out. The device is utilized in an apparatus for treating samples of cellular materials wherein the samples are contained in a stack of sample holders and fit in a stack holding tube, open at the top with a removable cap. A transfer tube having a bottom opening to fit on the top of the stack holding tube is provided and has a drive system to move the stack from the stack holding tube to the transfer tube. The improvement includes a fork attached to the drive system for the stack removal, and a button or grooved member on the cap for engagement by the fork so that when the drive system moves upwards it lifts the cap with it.

Abstract: A tight-grip wrench has attributes of both a closed-end wrench and an open end wrench by having a handle which moves a large jaw relative to a small jaw.

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

Abstract: A wrench for installing or removing filter cartridges in locations of limited access, consists of a pair of joined sheet metal stampings having cartridge engaging flanges thereon, arranged to be drawn together by a cam and slot mechanism, operated by an axially applied tool. The stampings are slidably pinned together for limited relative movement. One of the stampings supports the cam for revolution while the other stamping includes a transverse slot in which the cam is disposed to effect the relative movement. The cam and slot are arranged so that inward clamping movement and thus gripping of the cartridge occurs upon revolution of the cam in either direction.

Abstract: A dual-mode ratchet wrench usable in either a reciprocating or a nonreciprocating mode is disclosed. The ratchet wrench includes a wrench body having a head portion and a handle portion, a rotatable drive unit, a ratchet mechanism, and a sleeve assembly that is axially translatable along the handle portion. In the reicprocating mode, the sleeve assembly is moved to a disengaged position wherein the wrench is operated by swinging the handle back and forth through an arcuate path. Due to the action of the ratchet mechanism, the drive unit is forced to rotate when the handle portion is swung in one direction, but not the other. In the nonreciprocating mode, the sleeve assembly is moved to an engaged position, wherein the inner end of the sleeve assembly engages the drive unit through a bevel gear system. The wrench is operated by rotating the sleeve assembly about an axial centerline through the handle of the wrench.

Abstract: An opener tool for aiding a user in opening a can of the type having a self contained stay-on-tab opening system. The opening tool is configured to slide onto the lever end of the can's tab structure to hold it during pivotable movement of the tab structure and to be in bearing engagement with the head of the rivet which attaches the tab structure to the can to utilize the rivet as a fulcrum for the opener tool.

Abstract: A hand tool for disconnecting a tubular member from an associated connector fitting by imparting relative separation forces thereon in a direction generally axially of the tubing. The tool includes a frame adapted to engage the fitting to exert a separating force thereon, a bell crank pivotally connected to the frame and having a plunger movably mounted thereon and operable for engaging and releasing the tubing in the vicinity of said fitting. The tool also has a lever pivotally connected to the frame and movable relative to the bell crank for sequentially imparting tube gripping engagement of the tubing by the plunger and bell crank and then pivoting motion to the bell crank to thereby draw the tubing away from the fitting and thus disconnect the same. The plunger has a squeeze block mounted on one end thereof and movable relative to a juxtaposed tube-engaging portion of said bell crank.

Abstract: A wrench for use with mine wall support bolts is disclosed. The wrench includes an elongated shaft shaped to be engaged and driven by a mine bolting machine. The shaft is coupled to a bolt socket by a universal joint. A removable, resilient, impermeable sleeve surrounds the universal joint. The sleeve is formed of a non-metallic material having physical properties which limit the movement of the universal joint and also seal the joint against infusion of solid and fluid matter. The sleeve is secured in place by a removable clamp.

Abstract: A power-driven insertion tool for a helically coiled wire insert of the type used for tapped holes in parent material that is generally softer than a fastener being screwed into the tapped hole, whereby a mandrel having a threaded lead portion and a pivotal pawl inserted in a groove below the threaded portion so that the pawl engages a recess of the insert, in order that the insert may be screwed into the tapped hole. A sleeve, concentric to the threaded mandrel, maintains the insert's helix angle for a smooth transition into the tapped hole. An adjusting nut adjusts the depth to which an insert may be installed and whereby a free spinning bearing contacts the parent material and automatically reverses the torque of the tool.

Abstract: A method of and an arrangement for grinding gears, particularly bevel gears, includes grinding in a cooling lubricant bath in the cooling and lubricating medium to provide an increased grinding efficiency and cooler grinding without danger of grinding damage, and also guarantee self-cleaning of the grinding wheel since the cooling lubricant is always available in the grinding point.

Abstract: An improved arrangement for driving threaded screw fasteners both manually and automatically utilizes mating conformations in the fastener head and driver including a central, preferably conical, depression in the head and a complementally shaped central projection extending from the driving tool. Further, the head is formed with slots, less deep than the depression, which open both at the depression and at the outer margins of the head. The driver is formed with corresponding blade sections.The central projection and depression are formed such that force along axis of the driver toward the head and rotational force about the driver axis tend to force the fastener axis to alignment with the driver axis.

Abstract: An automatic mounting appliance for assembling clamp pins, screws, nuts and the like is adapted to be installed on a machine driven into rotation by a motor. The appliance comprises coaxial elements i.e. a holding member for receiving a portion of the pins, screws, or nuts terminated at one end by a socket, a gripping member having angular shift with respect to the holding member and terminated at one end by a socket axially adjacent to the first mentioned socket, both sockets being in coincidence only in one of two end positions, a rotary member driven by the motor, a stationary member, and a driving member radially interposed between the rotary and gripping members to frictionally drive the gripping member from the rotary member, whereby the angular shift permits locking or unlocking of the pins, screws, or nuts depending on the direction of rotation.

Abstract: An adapter for a conventional wrench socket facilitates the use of an open-end or box wrench in confined and inaccessible areas where a conventional ratchet wrench cannot be used. The adapter includes a downwardly-facing closed internal slot for facilitating a convenient removal of the adapter from the wrench socket.

Abstract: A pierce nut has a plurality of projections which are integrally formed with a cylindrical body of the pierce nut. When the pierce nut is pressed against a metal sheet laid on a back-up die, an opening is formed in the metal sheet only by shearing force between the pierce nut and the back-up die, with no other force being used to press-break the metal sheet, and the projections are deformed by an annular bank portion of the back-up die at different portions thereof each time the back-up die is used. Thus, the use of the present pierce nut in combination with the present back-up die remarkably extends the life of the back-up die.

Abstract: An electric socket wrench is provided and consists of a housing having a tubular head and a tubular neck, power means provided in the housing, a power driven shaft extending from the power means through the tubular neck into the tubular head, transmission means for rotating a socket driving member for attachment to a standard socket member placed within the tubular head and connected to the power driven shaft and locking means for preventing rotation of the socket driving member so that the wrench can be used manually.

Abstract: A two-part tool assembly comprising a squeeze wrench section and a ratchet wrench section adapted to be fitted into one another. The squeeze wrench section serves to convert squeezing motion into rotary motion on a variable torque basis, and the ratchet wrench section transmits the rotary motion to the screw or bolt which is being tightened or loosened. In one embodiment, a curved lever is included in the squeeze wrench section in conjunction with a handle to provide a traveling fulcrum, so that when the handle is squeezed maximum torque is generated at the beginning of the stroke and maximum speed is realized at the end of the stroke. In a second embodiment, the variable torque is provided by changing the angle of spiral cuts along a drive shaft in the squeeze wrench section, so that the spiral cuts become more axial towards the front end of the section, and by directly coupling a slider on the shaft to the squeeze handle.

Abstract: A tube construction includes first and second tube members 16, 24, each of the tube members 16, 24 having a flared end portion 96. A joint for connecting the tube member 16, 24 together includes an annular resilient seal 98 having a pair of side faces 100. Each of the side faces 100 includes an outwardly tapering flat portion 101 and integral intermediate portion 103 as viewed in cross section. The joint further includes an annular ferrule 18 having a pair of inwardly sloping annular portions 26, 102 and an annular central portion 104 interconnecting the inwardly sloping annular portions 26, 102. Each of the inwardly sloping annular portions 26, 102 engages the flared end portions 96 so that the flared end portions 96 are clamped between the inwardly sloping annular portions 26, 102 and against the side faces 100 with the intermediate portion 101 of the seal 98 clamped between the open ends of the flared end portions 96 to perfect a seal between the two tube members 16, 24.

Abstract: Ratchet wrenches of the socket drive type with socket ejector incorporate improved structure and arrangement involving the control knob stub shaft portion, the ejector pin retainer plate, and assembly technique.

Abstract: Ratchet wrenches of the socket drive type with socket ejector incorporate improved structure and arrangement involving the control knob return means, socket ejector pins and ratchet pawl pivot pin, and assembly technique.

Abstract: A bush mounting equipment with an automatic lubricating oil applying mechanism has a guide holder having a tapered hole, the reduced-diameter portion of which has a diameter equal to the diameter of a bush mounting hole of a work. A lubricating oil feed gap is formed in the circumference of a smaller-diameter end of the tapered hole, and a lubricating oil fed from the lubricating oil feed gap is applied automatically to the outer surface of a bush when the bush passes through the tapered hole while being compressed. The bush then passes through a work holder and is fitted in the bush mounting hole of the work.