An attitude change alarm for securing articles from theft or other undesired movement. The alarm includes a case having a wall which defines a hollow interior. Resistive elements are maintained within the wall in spaced relationship with each other and in common communication with an electrically conductive surface on the outside of the wall. An electrically conductive member is fixedly maintained in the hollow interior in constant contacting engagement with a conductive fluid which makes select...

A pole change type motor has armature windings wound around an iron core in a coaxial fashion with a P (for example 2) number of poles for a high speed operation, which armature windings provide a Q (for example 20) number of poles for a low speed operation by changing the external connections of the windings. Each phase coil of the armature windings is segmented into N (for example P, the same number as the poles) portions, a one-pole portion of each phase coil being comprised of a plurality (f...

A speed change pulley is disclosed in which, for relative centering of the movable side plate with respect to the diaphragm, the diaphragm is provided with engagement members projecting therefrom and axially received in notches in the movable side plate. The engagement members also comprise weight members for enhanced sensitivity to centrifugal force.

A screening apparatus for molten plastic material flowing from an extruder comprising a housing mounted on the extruder and having a feed channel for flow of the plastic material therefrom and a slide member mounted for slidable movement in the housing with a clearance therebetween. The slide member contains replaceable screen elements adapted for being positioned in the path of flow of the plastic material flowing from the extruder to effect screening thereof. In order to seal the clearance bet...

The present invention relates to a smoking pipe having a retroverted-flow filter around a bit member and having a bowl placed within a bowl receptacle for enabling quick and easy changing of the smoking bowl while additionally creating an air cooling space between the bowl and bowl receptacle. More specifically, the present invention represents an improvement on the bit member and bowl structure of U.S. Pat. No. 3,780,745.

Complementary relatively stationary pulleys having axially oppositely stepped diameter portions form a variable speed drive between a motor coupled with one stepped pulley and a driven device coupled with the oppositely stepped pulley such as the spindle of a drill press on which the device is mounted. A transmission belt for the stepped pulleys is bodily shifted with an associated belt tensioning idler pulley, a belt shaper guide, and a compression belt former selectively to position the belt i...

A planetary speed change gearing for a power transmission system including a flywheel secured to a power transmission shaft of an engine, a flywheel housing enclosing the flywheel and an output shaft provided on the flywheel side and directly connected to a machine to be driven. The planetary speed gearing is built in a recess formed in the flywheel.

A tool change device, for transferring selected tools between a rotary tool magazine and the rotary spindle of a machine tool. The magazine has a plurality of sector-shaped tool holders, in each of which one tool is stored. Tools are individually loaded or unloaded at a corresponding orientation of the magazine, at which a selected sector-shaped tool holder is in axial alignment with the machine spindle. When in such alignment, the sector-shaped tool holder is moved axially into cooperative rela...

A change speed apparatus for a tractor comprising a combination of frictional stepless change speed means and planetary reduction means. A large diameter gear is used to drive the frictional stepless change speed means by means of engine output, and the frictional stepless change speed means includes a large diameter driven disc which engages an outer periphery of an internal gear of the planetary reduction means to be axially movable but not rotatable relative to the internal gear. The planetar...

For designing an automatic reel change system for use in connection with the processing of a web from a reel (7, 8) on a reel support (2), the web being sheeted in a transverse cutter (3), the invention takes the form of a system which makes do with a very narrow web part having a greater-than-normal thickness, but, nevertheless, safely joining the two webs together; the reel stand (or support) (2) has support parts (9 and 10) for at least two reels (7 and 8), from which, on reel change-over, a ...