A device for use in conjunction with a sheet group separator of the type having a rotating slotted disk supporting a stack, together with a depressor for the lowermost group, and a finger for separating a corner of said group from the stack. The device comprises a vertically slidable weight at said stack corner so that a constant downward pressure is exerted to prevent upward curling of the corner which might reduce the effectiveness of the finger and depressor movements. A counterweighted press...

A method for improving emission from the surfaces of cathodes in electron-emission devices such as thermionic converters in which a large flux of atoms or molecules of material is condensed upon a substrate to produce a surface bounded primarily by crystallographic planes of maximum atom density. The flux may be produced by evaporation from a source which need have no particular crystal orientation and which is held at a higher temperature than the substrate, the substrate being at a temperature...

An adaptor kit for use in a lawnmower, wherein the lawnmower has a frame, a pair of brackets secured to the frame, and a pair of handlebars, which may be releasably attached to the pair of brackets in a first position, and detached from the pair of brackets in a second position, and wherein the bag may be attached to the frame, and the attachment of the bag to the frame is facilitated upon the handlebars occupying the second position, includes first and second attachment devices which may be rel...

A prop means for use in association with a vehicle of the type having a cover-like member formed of the vehicle license plate and a license plate carrying bracket and which is normally closed and conceals the intake end of the filler conduit for fueling the vehicle, and which is operable to hold open such cover-like member to provide ready access to the intake end of the filler conduit when fueling the vehicle.

A ski boot device for facilitating walking comprises a profiled member for connection to the sole of a ski boot, and mobile from a first position in which it is flush with the plane defined by the sole to a second position in which it projects from the sole plane.

A microprocessor system in which a microprocessor having arithmetic logic, program memory, registers, and other support circuitry provides control lines and bus connections to an external application dependent logic module which has control logic, external registers and external memory and is oriented to handle the specific requirements for data transfers to and from a particular type of peripheral device. Means are provided in said microprocessor for selecting the number of times an instruction...

An apparatus (10) for determining by X-ray examination whether an anterior talo fibular ligament has been ruptured includes an angle-shaped support structure (12) having an upright member (14) attachable to the lower leg (L) of the patient. The support structure (12) also includes a base member (16) for slidably supporting a foot support carriage (18) for longitudinal movement toward and away from support member (14). Carriage (18) includes a heel wedge (20) for receiving the patient's heel (H)....

A pair of caps or thimbles engage over two fingers of the user and the closed ends of the thimbles are apertured to allow feeding of the dental floss from a supply container as required to clean the teeth. The thimbles frictionally clamp the dental floss to the fingers so that the floss may be properly tensioned for use without the inconvenience and frequent discomfort which arises when the dental floss must be wound around the finger tips. The device is efficient and economical.

The present disclosure relates to a device permitting the fitting onto a first pipe of a coupling, constituted as a single piece in which there are generally seated two sealing rings and, in a circumferential median groove, an expansion joint or seal, and the fitting of a second pipe onto this coupling positioned on the first pipe, and relates especially to the coupling of large diameter pipes such as are commonly used in public drainage works, water supply sustems, waste disposal systems pipeli...

In order to facilitate the interchange of typing elements of the type having a cap at their top and arranged to be interchangeably installed on the element post of a typing machine, and to be stored in a container when not on the machine, the element being provided, in the vicinity of its upper extremity and below the cap, with a locking device movable between a locking position in which it fastens the element to the post and an unlocking position in which it permits the element to be lifted fro...