Abstract: A camouflage and protective headgear which may be worn by a human. The headgear comprises an upper fabric portion which will encircle a portion of the head and forehead of a person wearing it. The top edge of the upper fabric portion falls along a line lying at approximately the hairline of the wearer and the bottom edge falls along a line lying at approximately the eyebrows of such a person. The upper fabric portion has an upwardly extending fringe along at least a portion of the top edge thereof. The upper fabric portion may also have a downwardly extending fringe along at least a portion of the bottom edge thereof. Preferably the headgear has a lower fabric portion encircling a portion of the nose and face of the person wearing it and having a top edge which falls along a line lying approximately at the bottom of the eyes of such person and a bottom edge which falls along a line lying at approximately at the bottom of the jaws and chin of such person.

Abstract: This invention discloses a waste receptacle comprising a waste receiving volume.

Abstract: There is disclosed a bench pad for a weight lifter's bench which has a first elongate portion of a first substantially uniform predetermined width, a second portion disposed longitudinally of the first elongate portion and having a second substantially uniform predetermined width and a third portion disposed between the first elongate portion and the second portion and connected to each of them. The third portion is positioned to be located under the shoulders and cervical area of a person lying supine on the bench pad. A first end of the third portion is connected to the first elongate portion and has a width substantially equal to the width of the adjoining end of the first elongate portion and a second end of the third portion is connected to the second portion and has a width substantially equal to the width of the adjoining end of the second portion.

Abstract: This invention discloses a support and display apparatus for supporting and displaying disc-like objects of predetermined size and shape, the support and display apparatus comprising at least one elongated structural member having a width, a thickness, a length, and an upper surface, the length of the elongated structural member being at least equal to an overall dimension of a face of a disc-like object which is to be supported and displayed, the structural member having a uniform continuous groove formed in its upper surface, the continuous groove having a bottom surface and opposed front and back sides, the front and back sides being spaced from each other at any opposed corresponding point by a space at least equal to the thickness of a disc-like object which is to be supported and displayed.The structural members may be joined together to support and display a relatively large array of disc-like objects.

Abstract: A machine for extracting an elongate work piece from a medium in which it is imbedded. The machine includes a vertical gripping plate in opposed gripping relating with an eccentrically pivoted gripper. These gripping elements are carried on a rigid frame adapted for attachment to the three point hitch lifting mechanism found on tractors. When the work piece is gripped between the gripping elements, lifting of the frame by means of the lifting mechanism of the tractor, will extract the work piece. Auxiliary lifting force may be provided with optional fluid power operated cylinders. Linkages may optionally be provided to remotely move the pivoted gripper into and out of gripping relation. The linkages may be operated manually or with a hydraulic or other power operated cylinder.

Abstract: A tool for scraping paint from the nap of a roller and for providing a hand grip by which a paint roller can be slid off a mandrel which holds it on the paint roller handle. The tool is in the form of a cylindrical tube slit at one side and has an integral hinge opposite the slit so it can be opened into two semicylindrical halves.The curved ends of the semicylindrical halves are used to scrape paint from the nap of the roller. A corresponding end of each half is formed with an inwardly extending flange so that the tool can be closed about a roller with the flange abutting the end of the roller. The tool is then used as a handle to slide the roller off the mandrel.

Abstract: This invention discloses a system for manipulating color television images transmitted in the NTSC system of television. Manipulation is by known methods which involve storing in a memory picture data as transmitted in the television signal and restructuring the memory addresses to achieve the desired special effects. Unlike other systems, however, the data is stored in its composite form consisting of a luminance component and color information related to the phase and frequency of a subcarrier. The samples are taken at specified intervals and associated in groups. The samples in a group are mathematically combined in such a manner that the color component values are not affected by address manipulation. After manipulation the signal data is restored to its luminance and color components by a method which does not involve the phase or frequency of the subcarrier. These components are then recombined into a standard NTSC signal which will produce a manipulated display in color on the television screen.

Abstract: This invention employs an incremental technique for performing a perspective transformation on a planar television image. The equipment modifies the coefficients to a two by two matrix multiplier at the pixel or line rate. This allows for perspective generation along either the X or Y axis of the television screen. The invention will also provide perspective generation for rotation of the image about the Z axis in addition to the rotation about one of the X or Y axes.

Abstract: A power operated gripper in which both the gripping and releasing movements of the gripping elements are made under power. The gripper comprises a thrust member which is extended and retracted in a linear motion by the power means, gripper arms which swing in an arc to grip and release a workpiece, a cam and roller structure to convert the linear motion of the thrust member to arcuate movement of the gripper arms and adjusting screws which engage the walls of a V-shaped groove in the thrust member to control the extent of its movement in each direction. The parts are constructed and arranged to permit adjustment of the gripper while it is operating so that precise control of the gripping and releasing motion of the gripper arms may be attained under actual operating conditions.

Abstract: A method of and apparatus for storing two scan lines of encoded video information for the purpose of writing said information into a main video memory such that the two lines may be transferred to main video memory during horizontal blanking periods when the main video memory is not being read for the purpose of forming a manipulated image on the screen. Two consecutive horizontal blanking periods are used to complete the transfer of each stored line. Further circuits are provided for altering addresses to the main video memory which is properly segmented for the purpose of extracting the target pixel information and the information of several surrounding pixels. The purpose of such access is to supply a pixel interpolator with enough information to construct a proper screen image of the target pixel.

Abstract: A sheet holder for releasably restraining a stack of sheets of varying thickness so that operations such as writing or drawing can be performed on the top sheet. The sheets are supported on a stack support shelf secured to a base. A retainer is pivoted to the same base and has a portion which overlies the front edge of a stack of sheets on the support shelf. A rubber band, spring or other elastic member may be provided to apply a force to the retainer urging it into retaining engagement with the stack of sheets and an alignment member acts as a guide to maintain the sheets in the stack in alignment with each other. The elastic member and the alignment member may be the same part. In one embodiment the retainer also serves as a hand rest for a person performing operations on the stack of sheets. A prop or leg may be provided to releasably hold the retainer out of contact with the stack of sheets so that sheets may easily be added or removed.

Abstract: A holder or assister for enabling one person to set and stretch a chalking line and strike a chalk line without an assistant. The holder comprises a toe plate, a tubular member and a retainer plate integrally formed with each other and a center shaft inside the tubular member, these parts cooperate to hold the assister on various configurations of workpieces. Means are provided to attach one end of a chalking string to the assister and to permit accurate alignment of the chalking string with a reference mark on which a chalk line is to be struck.

Abstract: A method and apparatus for maintaining alignment of the drill steel or drill rod of a drilling machine in which a midpoint centralizer or indicator ring having an aperture therethrough substantially greater than the diameter of the drill rod or drill steel is used like a rifle sight to indicate the nature and degree of misalignment so that adjustments can be made in the operating mechanisms of the drilling machine or the support and positioning mechanisms for the drilling machine to remove the cause of the misalignment and to return the drill steel to its centered, aligned position in the indicator ring. In normal operation the drill steel does not contact the indicator ring so that noise transmission and frictional losses normally associated with midpoint centralizers is avoided. Mechanical contact between the drill steel and indicator ring occurs only to limit the maximum deflection and maximum stress which will occur in the drill steel due to bending.