Abstract: Devices, kits, and methods for making a carved crayon are provided. In one aspect, a crayon carving device includes a base, a pantograph armature coupled to the base, a crayon positioner, and at least one guide template parallel to the crayon positioner. The pantograph armature includes a motorized drive shaft with a drill tip for carving an outside surface of a crayon body, as well as a guide tip for tracing along a guide template that directs where the drill tip carves. In some embodiments, the guide template includes a stationary bridge support and a plurality of removable carving bucks that insert into one of multiple openings on the bridge support. The surface features of each of the carving bucks may be traced by the guide tip to generate a corresponding carving on the surface of a crayon body.

Abstract: The invention relates to a method of processing multipath-propagated components of a signal in a communications system. In the method, a signal transmitted on the radio channel of the communications system is received in a RAKE receiver and an impulse response of the radio channel is formed. In the method, one or more taps having the highest signal energy in the impulse response are located and matched to a short matched filter. A weighting value for the impulse response is calculated on the basis of the one or more taps in the matched filter and a deviation between the weighting value and the center point of the matched filter is compared with a threshold value set for the deviation. The matched filter is moved toward the deviation when the deviation exceeds the threshold value set for the deviation.

Abstract: A hole-cutting device for attachment to a portable electric drill or similar rotating machine. The device has a cylindrical body with a rearward edge and a forward edge; a mounting plate is affixed across the rearward edge, and a series of chipper teeth are affixed about the forward edge. Each chipper tooth has a transverse cutting edge and a second cutting edge in substantial alignment with the wall of the cylinder, but alternate chipper teeth have second cutting edges displaced inwardly and outwardly from the cylindrical member.

Abstract: In a cutting head with exchangeable hard metal cutting blades for woodworking, wherein the cutting head includes a body with a center hub portion and arms extending radially therefrom and having support surfaces with cutting blades mounted thereon, the support surfaces and the cutting blades have cooperating stop means for axially and radially positioning the cutting blades on the support surfaces and clamping means are provided for firmly engaging the cutting blades with the support surfaces while they are held in contact with the stop means, and a cutting blade is mounted on each arm of the cutting head.

Abstract: One or a plurality of machined timber elements of complimentary first and second configuration wherein each element is characterized by having at least one face surface (1,2) and one abutment surface (3,4) wherein said abutment surface incorporates in said first configuration an elongate undercut slot or female dovetail (5) and in said second configuration incorporates a correspondingly shaped, undercut elongate protuberance or male dovetail (8) and said abutment surface is not orthogonal in relation to said face surface such that said first timber element configuration and said second timber element configuration are adapted for co-operative engagement to effect the joining together of a first timber element incorporating said first timber element configuration with a second timber element incorporating said second timber element configuration whereby the undercut slot of said first timber element interengages with the protuberance of said second timber element to form a self locking joint.

Abstract: An apparatus for removing hardened substances such as putty or the like from a window sash without removing the window sash from its frame and without requiring a separate external guide comprises a rotary cutter member with a cutting blade and a sleeve member including a guide ledge extending forwardly from a portion of the front face of the sleeve member to engage a surface of the window sash to position the cutting blade relative to the putty holding surface of the sash in the direction perpendicular to the putty holding surface. The apparatus may further include an extension member and a stabilizing member to be used when a hardened substance is to be removed from a sash having associated with it a storm window or the like that would otherwise interfere with an electric drill or other power source and prevent the cutter blade from reaching the putty.

Abstract: A drilling/cutting bit for forming joints in wooden members to be connected together by a coupling. The bit simultaneously forms a smaller width slot, a larger width slot, and a curved transition between the slots.

Abstract: A drill/cutting tool for making joints in wooden members for receiving a metal plate connector. The drill/cutting tool can bore a hole, and then simultaneously cut a smaller width groove and larger width groove from the hole to complete forming the joint. Also, a method of making a joint in wood members.

Abstract: The apparatus is used for forming a diamond shape on ornamental chains (C) of variable width, and comprises a support having a slide guide flange (1A) with an intermediate gap (3) for the space required for the diamond-shaping tool (5), a shoe for lateral pressure against the support and, to serve as guide means acting along the edge (B1) of the chain opposite the edge (B) to be given a diamond shape, two pressers (14) acting independently on said edge (B1) adjacently to said gap (3).

Abstract: A rotary hole sizing tool for enlarging a pre-existing hole comprising a shank portion, a disk-like cutting member having cutting edges formed on the axially advancing face thereof, a pilot member for engaging the walls of the pre-existing hole and aligning the cutting member on the center of the pre-existing hole, the pilot member including a stepped shoulder of reduced diameter forming an undercut clearance between the pilot member and the cutting member, and screw means for securing the pilot member and the cutting member to the mandrel.

Abstract: A method and apparatus for forming solid bodies by removing material from solid workpieces. A workpiece is situated between oppositely rotating tools which remove material from the workpiece, these tools having hollow interiors facing each other and each conforming to the configuration of one half of the finished body. The hollow interiors of the tools have teeth for removing material from the workpiece, and while the tools are rotated oppositely the distance therebetween is due so that from the workpiece a body is gradually formed, this body finally becoming almost completely enclosed within the hollow interiors of the tools, whereupon the latter have the distance therebetween increased so that the body formed thereby can be removed. These tools are adapted to form from a workpiece bodies of full circular or ring-shaped configuration, and the hollow interiors of the tools are provided with raised teeth similar to file teeth, for removing material from a workpiece.