Abstract: A knife sharpener having a pair of abrasive rod members whose bottom ends are mounted on carriages that are reciprocally mounted in channels formed in upstanding block members. The channels travel along an axis that is parallel to the downwardly sloping top surface of the block members. The block members are fixedly attached to the top surface of a base and the mouths of their channels face each other and are aligned on parallel offset axes. The rod members therefore intersect each other at a predetermined angle to form a V at their top into which a knife blade is drawn rearwardly along a horizontal plane to sharpen its edges. Each of the carriages has one of its ends fixedly attached to a spring whose opposite end is fixedly held in position. The downward force of the knife blade as it is being sharpened causes the rod members on the respective carriages to travel downwardly toward each other and when the pressure is released the springs will return them to their initial unloaded positions.

Abstract: The angle through which the grinding modules of a railroad track rail grinding machine can be tilted is increased by pivotally mounting the grinding modules on a carriage which is in turn pivotally mounted relative to the rail grinding machine's supporting, main framework. The carriage hereof provides for lateral shifting of the grinding module grinding stones relative to the track rail, as well as tilting of the grinding modules through a ninety degree arc about the rail to be ground. The flexibility of the carriage greatly enhances the rail shaping capability of each grinding module.

Abstract: A lug nut removing apparatus including a torque shaft mounting at one end a lug nut socket and formed on its opposite end for selective receipt in selected ones of a plurality of vertically spaced apart bores formed in an upright stand such that the shaft bridges between the stand and the lug nut. A hub is mounted fixedly intermediate the ends of the shaft and is formed with a plurality of radially outwardly opening socket tubes spaced equal distance thereabout for removable receipt of one end of a lever arm employed to rotate to torque shaft.

Abstract: A rail grinding device comprising at least one reprofiling unit (80,81) driven along the track by a railroad vehicle (83); a jack (85) to displace in height the reprofiling unit with respect to the railroad vehicle (83) and to apply at least one tool of the reprofiling unit against the rail. The reprofiling unit (80,81) comprises at least one support (81) angularly displaceable with respect to the railroad vehicle (83) carrying several reprofiling tools (94,95) forming a group of tools. A positioning device (102), (104) and locking device (106,107) fixes the positions of the support (81) for which one (95) of the reprofiling tools (95,96) of the group of tools is located in working position.

Abstract: A cooling and lubricating device for sharpening feed chopping knives. The device sharpening the knives mounted on a rotating cutter head disposed inside a chopper box. The knives used for cutting crops, forage, ensilage and the like. The device is lowered on top of feed chopping knives so that the knives are continuously sharpened during the cutting operation. Further the device may be pivoted above the chopping box when the knives have been sharpened to prevent the sharpening stone from being exposed to potential breakage from foreign material received inside the chopping box.

Abstract: A socket wrench modified by the addition of auxiliary gripper ribs to either prevent bolt head stripper action or to minimize the adverse effects of such stripper action. In one case the bolt head is initially formed to have grooves in its side surfaces mated to gripper ribs on the wrench. In an alternate arrangement the gripper ribs are designed as cutter devices to form grooves in the bolt side surfaces by the application of a hammering force on the wrench.

Abstract: A method for grinding a work having a cylindrical portion and a couple of shoulder portions extending at right angles from the opposite ends of the cylindrical portion, the method comprising the steps of:(a) rotating the work about the axis of the cylindrical portion;(b) rotating a cylindrical grinding wheel with a width smaller than the space between the shoulder portions of the work about an axis parallel with the axis of the cylindrical portion;(c) feeding the grinding wheel relative to the work along an oblique path inclined to one direction with respect to the rotational axis of the grinding wheel, thereby simultaneously grinding one of the shoulders and a contiguous cylindrical portion; and(d) feeding the grinding wheel relative to the work along an oblique parth inclined to the other direction with respect to the rotational axis of the grinding wheel, thereby simultaneously grinding the other one of the shoulders and the remainder of the cylindrical portion.

Abstract: To enable wood screws provided with a suspension hook having a shank, and also magnetic holders having a shank, to be applied to and released from comparatively high structural parts by an operator standing on the floor or ground below, an apparatus is provided which comprises a carrier arm including two legs by means of one of which it is affixed in a direct or indirect manner to one end of a hollow cylindrical body enabling the apparatus to be inserted, for example, into a handle bar which can be extended and retracted telescopically and to be secured therein, the other leg of the carrier arm having a bifurcated portion provided for the reception therein of the shank of a wood screw or magnetic holder and fixing it in the proper position for applying or releasing the wood screw or magnetic holder.

Abstract: An improved writing tool consists essentially of a punctuation marking and error designation rubber seal supplemented by a capping furnished with seal stamping paste; two holes within the body, to permit insertion of a pen or a pencil stick, and a ruler; a clip serving to hold sheet of paper as well as pen holder; a cutter attached to the other side of the clip, serving to cut paper into smaller segments or chips as required. Such a tool proves to be advantageous and convenient in terms of utility, serviceability, endurance and convenience of application.

Abstract: A method of preparing a particulate filled aluminum metal matrix composite aterial so that it can effectively be examined microscopically and including first rough grinding the sample to produce a flat surface, secondly fine grinding the sample, thirdly rough polishing the sample and fourth and final polishing of the sample to produce a sample with a quality flat and polished surface that can be microscopically examined.

Abstract: An improved wrench construction wherein a telescoping handle is extensible and retractable for varying the torque applied to a given work piece such as a nut. The handle of the wrench telescopes a wrench shaft, the two in combination being combined with a quick-release mechanism for easily changing the handle setting from one over-all length to another. In a preferred form of the invention, the wrench is supplied with parallel elongate detent pins that cooperate with grooves in the wrench shaft; these detent pins are lifted rearwardly and outwardly from a particular groove within which they are aligned, by a suitable actuatable sleeve, the essential distance of sleeve travel, relative to pin disengagement from a particular groove, being greater than pin travel out of a particular shaft slot.

Abstract: A method for matching the bonding pad surfaces of a device and heatsinks to be bonded, which method maximizes the uniformity of pressure applied during thermocompression bonding, is disclosed. The method comprises using the collet of a die bonding machine to burnish the bonding pad on a heatsink. The collet is then traversed to a second workstage where the collet is used to pick up a device and burnish the device bonding pad against a suitable burnishing medium. The collet, with the device, is then traversed back to the main workstage where thermocompression bonding of the device to the heatsink is carried out. The alignment of the collet is locked and maintained throughout all of the steps to insure that all burnished surfaces are parallel and that the pressure during bonding is perfectly perpendicular to those parallel surfaces.