Abstract: A blade tensioning mechanism for a band saw is provided with a block slidably mounted on the saw frame and carrying a movable, non-driven, (i.e., idler) band saw blade wheel. A link is threaded to the block and extends through a housing having three coaxially aligned bores, one of which is internally threaded. A handle is secured to one end of the link adjacent the housing. A thrust bearing and externally threaded collar are disposed on the link in the housing with the thrust bearing located between the collar and the link handle. The collar has a slotted keyway for receiving a pin projecting radially from the link. A compression spring is disposed in the housing with one end against the collar and the other end against a retainer member threadingly engaged with the housing. The saw blade is tensioned to a predetermined amount by turning the handle to move the block along the link relative to the frame.

Abstract: The invention includes an ignition control assembly including a first ignition control module adapted to be connected to the distributor and to control electrical operation of the distributor, and a redundant ignition control module including circuit means adapted to be connected to the distributor to control electrical operation of the distributor. The control modules are mounted in a location remote from the distributor. The mounting includes a heat sink for maintaining the control modules at relatively low temperatures. A switch and circuitry are also provided for alternatively providing an electrical connection between the first control module and the distributor and between the redundant control module and the distributor.

Abstract: An electrically conductive terminal adapted to be fixedly connected to the free end of a wire such as a spark plug wire. The terminal includes one end constructed to releasably clampingly engage a conductor such as a spark plug and an opposite end comprising a body adapted to house the free end of the spark plug wire. A stake member is provided for securing the other end of the terminal member to the spark plug wire and also for providing an electrical conductor between the core and the terminal. The stake member extends through a hole provided in the terminal and through the spark plug wire.

Abstract: A blade tensioning mechanism for a band saw is provided with a block slidably mounted on the saw frame and carrying a movable, non-driven, i.e., idler, band saw blade wheel. A link extends through a cam follower secured to the block and carries a pivotally mounted cam for engaging the cam follower. The end of the link opposite the cam is threaded and is engaged in a threaded bore of a rotatable shaft which is carried on the frame and which is restrained against displacement relative to the frame. A handle is connected to the shaft through a preset torque limiting device whereby the blade can be pretensioned to a predetermined amount by turning the handle to move the link, cam follower, block, and idler wheel relative to the frame. The cam can be subsequently pivoted against the cam follower to further move the idler wheel a predetermined amount to apply a final, operational tension.

Abstract: The present invention provides a compact, completely enclosed motor driven spark plug cleaner. It is preferably battery driven and is adapted to be held in the hand of the user. The invention provides a device for projecting granular abrasive against the electrodes and the insulation of a spark plug to clean them of carbon deposit. Safety features prevent projection of the abrasive particles into the face and particularly the eyes of the operator. Spark plugs of various sizes and screw threads may be treated without requiring any structural adjustments by the operator. The blast of abrasive particles is directed against the electrodes or "points" of the spark plug at an angle to the longitudinal axis of the plug, and the plug can be rotated and wobbled in its mount. This provides a novel and advantageous mode of operation and constitutes a novel method of cleaning a spark plug.

Abstract: A machine tool with an automatic tool changer in which a new tool is removed from a self-indexing storage magazine and loaded into a spindle journaled in the frame of the machine. A tool changer mechanism comprises a carriage slidably mounted on the frame for movement substantially parallel to the axis of the spindle and a boom pivotally mounted in the carriage. The boom has first and second telescoping transfer arms for receiving and conveying tools to the spindle and the magazine. The transfer arms are substantially coplanar and perpendicular to the axis of the spindle but displaced relative to each other at a fixed acute angle.

Abstract: A portable power driven implement having a motor as a power source and a drive train which is compact and the components of which are readily accessible, in which the motor rotates drive means which is connected to rotate output means, and in which a linking member connected to the rotating output means imparts reciprocating motion to a tool member, the linking member spanning the drive means and configured to avoid interfering engagement therewith.

Abstract: Animal-actuated watering valve means comprises a coil of metallic spring wire having a plurality of convolutions and an outer sheath of a resilient material about the convolutions, the material having a substantially uniform radial thickness and exerting a radial compressive force on the spring wire along the length of the convolutions. An elongated actuator means for deflection by an animal is operably associated with the coil. The valve means is operable by parting or compressing the convolutions thereof, and is manufactured by threading a substantially uniform tubing made of a resilient material onto a spring made of coiled spring wire. The threading operation is accomplished by providing an uncoiled tail portion for the spring, first threading the tubing onto the tail portion, and thereafter transferring the threaded tubing from the tail portion onto a coiled portion of the spring.