Abstract: In a random access retrieval apparatus having disc/radial selection and path length compensation systems a bearing and guide means permitting and transmitting high speed linear, angular and rotational motion among a rotating shaft, a frame and a driven element. A first bearing element mounted on a shaft for rotational movement therewith and linear movement there along, a second bearing element supporting the frame for angular motion relative to the shaft and first bearing element and for linear movement with the first bearing element and relative to the shaft.

Abstract: A trough for attachment to the edge of a draftsman's table to receive debris such as that generated by erasures, etc. The trough is adjustable in length, supported by brackets and readily removable from the brackets so the debris may be emptied into a waste receptacle.

Abstract: A high-density rapid random - access retrieval apparatus for retrieving micrographic and data images stored on plural windowed discs. The apparatus is comprised of a disc/radial selection mechanism which moves axially of a cartridge containing a stack of closely spaced discs. Each disc has a clear window disposed on a radius thereof and a plurality of windows containing micrographic and/or data images disposed along other radil. When the disc/radial selection mechanism has moved to a selected disc, the radial component rotates the disc until the radius upon which the desired image is located is aligned with the clear windows in the other discs. The optical system includes lens and reflecting surfaces. At one end of the system is a projection means and at the other end lies its receiving means. Elements of the system are vertically adjustable so that the line of sight of the system is projected through any selected image bearing window.

Abstract: A calculator, particularly useful for medical personnel comprises function, numerical selection, and memory circuits with a read out display connected to provide conversion of quantitative values from one system to another, times and converts pulse rates and similar observations to a standard time element, and when used with a data, time, tone and circuitry reminds an attendant of various duty schedules and is also adapted to be utilized with a "print out" system.

Abstract: A high-density rapid random-access retrieval apparatus for retrieving micrographic and data images stored on plural windowed discs. The apparatus is comprised of a disc/radial selection mechanism which moves axially on a cartridge containing a stack of closely spaced discs. Each disc has a clear window disposed on a radius thereof and a plurality of windows containing micrographic and/or data images disposed along other radii. When the disc/radial selection mechanism has moved to a selected disc, the radial component rotates the disc until the radius upon which the desired image is located is aligned with the clear windows in the other discs. The optical system includes lens and reflecting surfaces. At one end of the system is a projection means and at the other end lies its image receiving means. Elements of the system are vertically adjustable so that the line of sight of the system is projected through any selected image bearing window.

Abstract: A signal device for indicating a U-turn of a motor vehicle mounted on the vehicle for movement between an extended position above the hood of the vehicle and a stored position beneath the hood. The signal device includes a housing mounted on top of a rack in meshing engagement with a pinion drivingly connected to a reversible electric motor. The signal device is supported by a U-shaped bracket which may be attached to the hood of the automobile by tack welds and is supported solely by the relatively thin sheet metal of the hood. The housing has an inverted U-shaped window to expose a bulb mounted in a socket within the interior of the housing covered by a colored lens. When the bulb is activated, the lens will transmit light through the window to indicate to oncoming motorists that the vehicle operator intends to execute a turn. When retracted the top of the housing is flush with the sheet metal hood.

Abstract: A light weight, portable, folding blind for use by hunters, photographers, bird watchers and others who desire their position to be obscured or concealed. The blind is comprised of a central support mast to which a flexible substantially semi-circular material is attached along a central radius. The central mast has a ground penetrating element which is stuck in the ground to support the blind. There are additional ribs whereby the flexible material fans out to conceal the user. A hood for protection from the elements may also be used if desired.

Abstract: The disclosure relates to a method of repelling insects from humans, with sulfur as an element or combined or mixed with other substances, by the systemic action in the human body; and also the substances produced by the systemic action on the exposed surfaces of the body such as the skin or membranes.