Abstract: An elastic support unit has a supporting element including an elastic part and a sliding part arranged so that under the action of load, first the elastic part is elastically deformed and the supporting element acts within a first elastic region, then the sliding part allows the supporting element to slide over a slide path and the supporting element acts within a second sliding region, and thereafter upon passing the sliding region the supporting element uses its stress reserves and after exceeding the stress reserves uses plastic deformation of the elastic part, so as to form thereafter an elastic stop and thereby act in a third additional region.

Abstract: A releasable tool mount is provided for protecting tools carried by a manipulator from damage by excessive forces acting upon the tools irrespective of the direction of the force. The tool mount comprises a tool mounting plate, a housing for receiving the plate, support pins peripherally disposed upon the plate, receptacle placed within the housing for receiving the support pins and preload devices for exerting forces along the long axis of the support pins to maintain their engagement with the receptacle. Relative forces between the housing and the plate, sufficient to overcome the preload force, effect dislodgment of the pins from their associated receptacles. Fluidic sensing means are provided for detecting dislodgement of any pin from its receptacle.

Abstract: A support device for a fire extinguisher of the type comprising a rigid hook on which the fire extinguisher is hung. The device is provided with a spring-operated, safety latch which prevents access to the hook by closing a groove in the hook as soon as the fire extinguisher is removed to prevent the fire extinguisher from being hung after having been used. A key is provided to allow only a few authorized persons to rehang or, if necessary, replace the removed extinguisher. This device controls the utilization and the condition of the fire extinguisher in a much more efficient and, accordingly, safer manner. If desired, the device can also be provided with a micro-switch connected to a control circuit to immediately advise those in charge of building safety as soon as a fire extinguisher has been removed from its hook.

Abstract: A vehicle body side mirror assembly includes indicia arranged to facilitate resetting of the vehicle mirror to a previously determined position. The mirror assembly includes indicia such that the mirror assembly may be mounted on either the passenger or drivers side of a vehicle without modifications. Further, the indicia are arranged such that the mirror assembly may be readily reset to a previously determined position from outside of the vehicle as well as from inside of the vehicle. A support arm is pivotably attached or mounted to a base having circumferentially arranged indicia thereupon. The support arm is generally L-shaped and includes a lower portion having two indicia adapted for alignment with the circumferentially arranged indicia on the base, whereas a top portion of the support arm likewise includes two indicia for resetting a pivotably mounted mirror housing with respect to the support arm.

Abstract: An overhead mounting bracket for a horizontal venetian blind assembly having a U-shaped headrail including inturned ends forming return ribs. The bracket has first and second leg portions depending from a body portion where the leg portions include horizontal support shelves adapted to support the return ribs of a headrail. Decoupler means comprising a pivotal portion are included for spreading the legs of the headrail apart so that a return rib may clear a shelf upon disengagement of the headrail from the bracket.

Abstract: Brackets for mounting articles, such as shelves or panels, to a vertical wall or other supporting structure comprise first and second mutually orthogonal bracket portions to be secured, respectively, to the undersurfaces of the articles and to the walls. A keyhole shaped slot formed in one of the bracket portions enables the bracket to be conveniently coupled to a supporting screw anchored in the wall. The remaining bracket portion is secured to the undersurface of the shelf by screws or is coupled to a supporting screw by a keyhole shaped slot in the second bracket portion. Several different bracket embodiments enable systems of shelves or panels to be assembled by individuals having very little mechanical skill.

Abstract: The outline of a wall hanging object is cut out of a flexible sheet of material to form a transfer blank adapted to be positioned on a wall surface and adhesively held thereon at a desired location. The hanging point on the object is located and transferred to the transfer blank by a marking tool. The hanger device for the object is nailed to the wall surface through the transfer blank at the hanging point marked thereon, after which the transfer blank is removed.

Abstract: A radial arm saw has arm elevating means employing an elongated nut adjustably attached to the arm and slidably guided in a longitudinal groove formed in a tubular column and a motion transmission screw journalled in the column, means employing like elements for indexing and locking the arm in miter positions and the saw blade in bevel positions, a direct base to column connection providing independent adjustment of base members with respect to the column and to each other, a spring arm for biasing a yoke index pin into indexed positions and for withdrawing it, cam and arm yoke locking means, and simplified fence or table board clamping means.

Abstract: A pair of support blocks of similar construction are connected together by a flexible strap extending therebetween. Each support block includes a platform for engaging a floor surface and a support plate positioned on the platform, and an end portion of the strap extends between the support plate and the platform of each support block. The support plate of each of the support blocks is hingedly connected to its platform and includes an upwardly facing support surface sloped downwardly toward the opposite support block whereby a cylindrical roll or the like can be placed on and supported by the support blocks, with the support blocks forming wedges on opposite sides of the cylindrical roll.

Abstract: Bracket for supporting the headrail of a venetian blind where the bracket has two oppositely disposed hanger portions adapted to engage shoulder mounts on a headrail. The hanger portions are movable with respect to each other and the bracket has resilient means for urging at least one of the hanger portions into locking engagement with a shoulder support.

Abstract: A pipe hanger (10) for suspending a pipe (12) from a support beam (14) includes at least one flexible curved portion (16) which receives the pipe (12) in a snap-fit connection. The hanger (1) includes an elongate stem (22) for mounting the hanger (10) to the support beam (14). The stem (22) has a prismatic cross-section and a plurality of holes (26) extending therethrough in mutually perpendicular directions and graduated marking therealong. A plurality of hangers (10) can be used to mount a pipe (12) at an incline relative to the support (14) using the markings as guides.

Abstract: A threaded spindle as fixed to the chair seat is engaged with a nut positioned within the upper end of the base pedestal. A spring urges the nut for engagement with a clutch plate fixed to the pedestal. This clutch plate holds the nut nonrotatable so that when the chair seat is unoccupied and is rotated, the spindle threads through the nut so as to adjust the height of the chair seat. The nut and clutch plate have opposed engageable cam portions which effect automatic disengagement therebetween if the engaged nut and clutch plate are subjected to excessive torsional resistance. When the chair seat is occupied, the nut moves downwardly away from the clutch plate into engagement with a clutch washer which is seated on the pedestal but is nonrotatably keyed to the spindle, whereby the chair seat and the accompanying spindle and nut can freely rotate without causing a height adjustment to occur. A tube is positioned in surrounding relationship to the spindle and its lower end bears on the nut.

Abstract: A hanger-type ceiling-attachable support has a shallow pan engageable against a ceiling surface. A bellows or a piston-in-cylinder type of reservoir for liquid cement underlies the pan, and when it is compressed upwardly by a post depending from the reservoir, injects cement into the pan and against the ceiling surface. The depending post serves both (1) as an attachment device for a plural-section manipulating pole and (2) as a fastener for a suspension wire. The pole sections are inter-nestable for storing and carrying. A horizontally adjustable measuring rod aids in accurately spacing being-installed supports from previously installed ones.

Abstract: A survey tripod for use in uneven terrain which includes a center pole and a pair of support legs, each leg is pivotally attached to a slideable clamp on the upper part of the pole for vertical adjustment of each leg. The lower end of each leg is connected to the pole with a brace, both ends of each brace having pivotal connections for adjustment of the legs. There is a clamp connecting both braces to the lower part of the pole which permits anchoring the brace, and permits additional vertical adjustment of the legs relative to the center pole. A telescopic tube within the pole can be extended upwardly to increase the effective height of the pole. A survey instrument can be attached to the tip of the telescopic tube.

Abstract: An auxiliary apparatus at a stand for an optical observation device, such as a surgical microscope is disclosed, which contains a stand at which there is mounted the surgical microscope. The stand comprises a number of rotary and brake bearings, a support arm and a pivotal arm as well as a hinge parallelogram. The surgical microscope or other instrument can be freely adjustable, but fixed in position, throughout a predetermined spatial region as concerns its position and orientation. Arranged at the parallelogram is a web or strap for mounting a support element, at which there is laterally arranged a holder for the attachment of the housing of a brake bearing and a head element. In the head element there is movably mounted by means of a ball hinge element a coupling element structured for receiving and attaching the surgical microscope.

Abstract: A pair of extension members especially adapted to be slidably affixed to the book support member of a music stand of conventional construction. The extension panels comprise a back support panel and a lower support flange generally perpendicular thereto upon which may be supported sheet music. Each extension panel has provided thereon a plurality of retaining members, each defining a retaining groove which slidably engage the music stand. There is an upper retaining member defining an upper retaining groove which engages the upper horizontal edge portion of the back panel of a music stand, a first lower retaining member defining a first lower retaining groove which engages the support flange of a music stand, and a second lower retaining member defining a second lower retaining groove which engages the lower horizontal edge portion of the back panel of a music stand. There is an indicating means to indicate full extension of the extension panels.

Abstract: An inclinometer test assembly comprising a horizontal base plate, a vertical column mounted on the base plate, a support arm pivotally mounted intermediate its ends on the column, the arm having a longitudinally extending recess for receiving the cylindrical body of an inclinometer therein for the purpose of testing the inclinometer, a finger-like clip securing the inclinometer body within the recess, a three-point adjustment for the leveling of the base plate, a pointer plate and a degree plate mounted on the arm and column, respectively, for the positioning of the arm at a predetermined angle relative to the true vertical in order to test the inclinometer.

Abstract: A device for setting the direction and/or inclination of an elongated rock drilling apparatus. The actual value of the direction in each of two perpendicular planes is sensed by a rotatable screen having a pattern of parallel opaque lines separated by interspaces. Corresponding set values are set by prepositioning a carrying member on which a second screen is mounted which also has a pattern of lines and interspaces. The elongated rock drilling apparatus and the carrying member are moved in common until the line patterns on the screens form a desired moire pattern.

Abstract: A stanchion for the support of heavy industrial structures and pipe lines utilizes internal liquid springs for the sake of compactness. The height of the stanchion is standardized within several load ranges for ease of installation. The device is field adjustable to achieve an exact height. The stanchion has a low profile and for stability its height is always less than its base dimension. The stanchion includes a structural bearing active in two right angular planes and the bearing surfaces are of a dry lube type to resist wear. An integral load indicating scale is included on the stanchion. Economy of manufacturing, strength and simplicity of design are achieved.

Abstract: To facilitate supporting drain pipes at a prescribed grade or slope, a hanger formed of inexpensive material adapted for nailing has a plate-like body provided with a through opening for a pipe and having on opposite sides thereof a graduated distance measuring scale in relief form whose scale graduations may register with the bottom edges of floor joists when the hanger is nailed in position on either side of a joist to establish the required slope of a drain pipe. The pipe receiving through opening may be perpendicular to the plane of the hanger body or may be angled relative thereto.

Abstract: Blood specimen indexing means. A rack for test tubes having a lower solid plate, a center plate and an upper plate, the center and upper plates having a plurality of holes for receiving test tubes. The upper plate has a plurality of peg holes to receive the one or more pegs. The test tube holes in the upper plate are numbered with consecutive two digit numbers and the peg holes are numbered with consecutive three digit and four digit numbers.

Abstract: Track fastener apparatus for use in anchoring seats or cargo with a locking track that has a slot with spaced cut-out portions extending through the upper surface of the locking track from one side to the opposite side. The track fastener apparatus includes a housing and two track studs that are secured to the underside of the housing whose end portions are adapted to be received by the spaced cut-out portions. The track studs each have a shank portion that is adapted to slide within the slot in the locking track.

Abstract: Sturdily mounting a disposable medical device by rotatably attaching a back plate to a back brace, biasing the back plate toward the medical device and employing a camming means on the back plate cooperating with a tab on the device to rotate the plate away from the device as the device is initially slid onto the mount and to return the plate to lock the device in place when the device is slid fully onto the mount.

Abstract: For use with a frame to be hung on a wall by one or more attachment devices on the frame each engaging a hanging device on the wall, a method and apparatus for positioning one or more hanging devices on the wall is provided which includes an elongated body having a tab for engaging the attachment device. The body is generally flat and arranged to be releasably secured to the frame on one side, and after the frame has been located at a desired position on the wall, the opposite side of the body can be releasably secured to the wall. A portion of the body is arranged to identify a point on the wall where each hanging device is to be located in order that the frame will hang in the desired position.

Abstract: A positioning device is provided which is adapted to be secured to the back edge of a picture frame or the like. The device comprises a pivotally mounted indicator arm adapted to freely hang in the vertical plane when the picture frame on which disposed is in a normal hung position. When the picture frame is horizontally level no portion of the indicator arm is visible from the picture front; when the picture is not level a portion of the indicator is visible to the picture viewer.

Abstract: A spring support of the constant spring force type suitable for supporting pipes in installations where the pipes are liable to move laterally while in use, as for example in the case of pipes through which steam is conveyed, is arranged so that the pipe or other load which the support has to carry in use can be attached to a pivoted lever of the support at various positions at different distances from the pivot. The load is attached through load connecting means to a carrier which is variably positioned on the lever. By adjusting the position of the carrier the turning moment produced on the lever by any one of a range of loads can be arranged to be equal and opposite to the turning moment produced by the spring force which acts on the lever. The facility for adjustment has the manufacturing advantage that a standard form of lever can be produced for supporting a range of loads.

Abstract: An exhaust system for an automobile, or motor vehicle generally, is supported by a series of hangers on the frame or chassis of the automobile, the hangers having an exhaust conduit mounting means in the form of resilient jaws that spread apart upon insertion of the conduit and then snap in place through their own inherent resiliency to hold the conduit in the desired suspended position.