Abstract: Equipment for use with hand-held motion picture and video cameras comprises a pair of interconnected spring loaded arms, one end of which is pivotally supported by a carrying brace worn by a cameraman and the other end of which is connected to a handle positioned to mount the camera equipment at approximately the center of the moment of inertia. The camera and its associated equipment are mounted in exploded, balanced relation about the handle. The weight of the camera equipment is substantially counterbalanced by the action of the spring loaded arms without employing counterweights. A camera viewed is provided with an extended, flexible cord to facilitate viewing from a position remote from the camera itself and not necessarily governed by the camera orientation.

Abstract: A blind rivet comprising a sleeve with a preformed rivet head at one end, and a setting pin telescoped into the sleeve and having a pulling section projecting beyond the headed end of the sleeve and an expanding head projecting beyond the other end of the sleeve, to be pulled into the sleeve from the headed end thereof to expand the other end of the sleeve into a bulb-shaped rivet head against one side of two workpieces that are to be riveted together, the pulling section being broken off after the rivet is set, in response to engagement of the expanding head with stop means in the sleeve. The expanding head has an expanding shoulder for initiating expansion of the sleeve, and a taper beyond this shoulder which progressively increases the diameter of the head toward its free end.

Abstract: A fastener for use in display stands and partitions is provided for securing a pair of elements one to the other. One element is provided with a slot and the fastener is secured to the remaining element.The fastener is generally hook-shaped and is provided with a cam surface which engages with the rear surface of the slotted element to effect engagement. In an alternative embodiment, the fastener has two projections which engage the adjacent surface of the slotted element to urge the two elements together through the opposing action of the hook member projections and the surfaces with which they abut.

Abstract: A screw and nut assembly for adjustably positioning a headlamp unit relative to a support plate so as to realize proper optical aim for the headlamp unit. The assembly includes a one-piece plastic nut member having a shank insertable into a mounting hole formed in the support plate. The shank has one end formed with a base section and has the other end provided with a pair of spring arms which extend rearwardly along diverging axes towards the base section. The free end of each spring arm terminates with a plurality of teeth so that after the shank is inserted into the mounting hole in the support plate the spring arms move laterally outwardly to cause the teeth on each arm to engage the outer surface of the support plate and thereby hold the nut member in place.

Abstract: A motor mount having a slidable carriage bodily invertable by rotating 180.degree. on its longitudinal center line, and having stud-receiving portal openings so arranged and situated in the carriage upper and lower cross-members or surface plates such that with studs therethrough securing the motor to the carriage with the carriage in a certain face upward position, the motor is in an attitude necessarily twisted only to, for instance, the left, and is twisted only to the right with the carriage in a position inverted from the mentioned certain position, the studs utilizing the same portal openings in each of the two positions of the carriage.

Abstract: A pedestal stool is disclosed having a base carrying a stem on which a seat portion is supported.The base includes a sand-filled, bulbous, ground-engaging bag or sack to enable the stool to be tilted at any angle and held at that angle by virtue of the change in shape of the sack in response to the resultant flow of sand which produces a new equilibrium position for the stool.

Abstract: An article of manufacture, such as a table, comprising a base of interengageable modules, each module including two parallel horizontal members forming a slot therebetween and one horizontal member engaged within the slot of an adjacent module, thereby forming a supporting structure for a horizontal surface, such as a table top.

Abstract: A hollow wall fastener for insertion in a hole formed in a wall panel between the inner and outer faces comprises an elongated body adapted for longitudinal insertion into the panel hole. The body includes a pair of spaced apart, parallel, legs interconnected by an integral transverse cross member. A toggle element is pivotally mounted adjacent inner end portions of the legs for movement about a transverse pivot axis between the legs. The toggle is pivotable from a first position aligned with the legs during insertion of the fastener and a second position generally normal to the legs wherein a face of the toggle element is adapted to bear against the inside surface of the wall after the element clears the hole on insertion. A deflectable finger is integrally formed on the transverse cross member and includes a free end portion extending between the legs for biasing the toggle element from the aligned position during insertion towards the toggle locking position after the toggle element has cleared the hole.

Abstract: A stud-like panel fastener with a wire-spring holdout for retaining the fastener in a retracted position on a panel. The fastener is formed with a bore extending from its leading end and a longitudinal slot at the lower portion of the fastener body in communication with the bore. A generally U-shaped wire spring member is carried within the bore with a lower protruding bearing surface on one leg of the member extending through the slot and beyond the periphery of the fastener body. When the fastener is retracted, the bearing surface of the spring member, in contact with the sidewall of the panel opening, holds the fastener against downward movement. Owing to the advantageous construction, the holdout is self-cleaning, as the sidewalls of the slot tend to wipe the bearing surface in use, and debris cannot build up behind the holdout and render it inoperative due to the large void behind the bearing surface. Also, the holdout can be quickly installed or replaced without special tools.

Abstract: A fastening element assembly includes a fastening element having a head and an axially extending shank, a ring-shaped elastic member laterally enclosing at least an axial part of the shank, and a washer located on the shank between the elastic member and the head. The elastic member can be in contact with the surface of the shank or spaced radially outwardly from it. When using the assembly to attach an object to a support material, an opening or hole is formed in the object with the opening having a diameter approximately the same size as the outside diameter of the elastic member. The fastening element assembly is driven through the opening in the object into the support material so that the elastic member seats in the opening and spaces the shank from the object. Any transverse forces acting on the object are damped by the elastic member before they reach the shank.

Abstract: Disclosed herein is a plastic fixing device which integrally comprises a shank divided into two opposed shank sections connected to each other at their respective lower ends through a hinge portion, a pair of resilient wings extending away and aslant downwardly from the upper ends of the shank sections and a pair of engaging leg members extending away and aslant downwardly from the lower ends of said shank sections, whereby desired fastening to a given panel is accomplished by boring a hole through the panel, inserting the engaging members of the device in their fully converged state through the bored hole and, upon complete passage of the hinge portion through the entire depth of the bored hole, opening the engaging leg members into their diverged state for thereby causing the divided shank sections to be received in their fully converged state into the bored hole and, at the same time, enabling the diverged engaging leg members to remain stationary against the panel and keep the entire fixing device from sl

Abstract: A tiltable mounting for a camera or the like having a base member and a mounting pivotable thereon, wherein a pivotal spring acting on a pivoted cranked cam follower compensates for the moments of force produced by the action of the mounted camera, or like article, as it pivots on the base member about the vertical axis. The spring tension may be adjustable to suit different articles and the mounting may be fitted with fluid attachments in either, or both, pitch and yaw axes.

Abstract: An adjustable gas cylinder control comprising the combination of a single tube defining a single cylinder bore, a single piston slidable in the tube and dividing the tube into a first and a second compartment, a first and a second end plug adapted to sealably fit within the ends of the tube, a single spindle or rod fixedly mounted to the piston and reciprocable in the tube, gas inlet means for charging the sealed first compartment of the tube with gas, and valve means mounted in the piston and spindle for allowing gas flow between the first and second compartments of the tube thereby adjusting the position of the piston in the tube. The tube itself is made of rolled welded sheet metal with its ends having a simple cold formed impression holding the first and second end plugs. Also provided is actuating means including a lever connected to the spindle for actuating the valve means thereby allowing gas flow between the compartments of the tube.

Abstract: A two piece grommet assembly comprising an inner and an outer member wherein each member has an enlarged head at one end formed to bear upon opposite sides of a panel skin. The outer member has a recessed area intermediate its ends and the inner member has a weakened section on the shank portion which is adapted to deform into the recessed section of the outer member upon the application of opposing axial force on the two members. The weakened section of the inner member is comprised of a reduced cross-sectional thickness portion which collapses upon the application of axial force, causing the reduced thickness portion to flow inwardly into intimate contact with the recess in the outer member, locking the members together in the panel skin.

Abstract: A coupling device for coupling together heavy cargo pipes or the like which includes releasable plunger locking means to prevent rotation of a cam element in a locked condition and permit rotation in an unlocked condition. A liquid exit is also provided to prevent liquid accumulation and freezing together of relatively movable locking parts.

Abstract: The rotary tube of a crusher is mounted for rotation on a support having a support surface in gliding contact with a circumferentially extending, circular face portion of the crusher tube. The support is supported on a ball-and-socket joint in turn supported on a base, the ball of the joint being affixed to the support and the socket being affixed to the base. A cheek plate extends from each side of the support and encloses the joint and a portion of the base so as to restrain lateral movement of the support.

Abstract: A quick acting coupling for coupling together heavy cargo pipes which includes releasable locking means to permit rotation of a cam element in one direction and prevent rotation in an opposite direction, and upon release of this locking means to permit rotation in the opposite direction.

Abstract: A stud which, by being inserted through holes in structural or like building members, joins them together, includes two parts which can be moved relatively over contacting, planar side surfaces, at least one of the parts having lateral facing portions for embracing the members to hold them together, and the stud parts being held together after insertion through the holes by releasable, and preferably resilient, means allowing, after release, removal of the stud from the holes.

Abstract: A conical spring washer is constituted by a conical spring washer body, a plurality of spaced lock pawls extending downward from the lower contacting surface of the body, and each of the lock pawls has a gradually sloped face in the tightening direction of a nut or the head of a bolt and a sharply sloped face in the loosening direction of the nut or bolt head.

Abstract: A capped hexagonal nut for wheel rims wherein the cap includes a skirt portion terminating in an annular shoulder and a radially inwardly projecting flange which grips the shank of the nut to maintain a longitudinal tension between the cap and nut. The top of the cap may be open to expose a decorative plastic disk.