Abstract: A workpiece support apparatus is provided with a pair of pivotable leg assemblies which are movable between a first, open position, and a second, closed position. A releasable latch member is provided for holding the leg assemblies in a selected one of the open and closed positions. The apparatus includes a vertically adjustable work support assembly which can be locked at a desired height.
Type:
Grant
Filed:
April 12, 1990
Date of Patent:
November 12, 1991
Assignee:
Hirsh Company
Inventors:
Milton E. Handler, Richard Sylvan, Herbert Baisch, Michael Naranjo
Abstract: A corner support post for shelving is provided in the form of an elongate member of sheet metal. The member has two side portions that are oriented generally perpendicular to each other, that each extend at about a 45 degree angle from a central wall, and that each define laterally offset, parallel walls. Each side portion has a vertical margin defining a generally cylindrical configuration. Identical posts are adapted to be aligned in end-to-end abutting registration relationship and fastened together with connecting plates.
Abstract: A connector assembly is provided for connecting a first tube section to a second tube section that has a hollow tubular wall. The assembly includes a base member for being mounted to the first tube section, a collet member for being received in an open end of the second tube section and matingly engaged around the base member, a screw having a head for engaging the first tube section and having an extending threaded shank, and a threaded receiving nut for threadingly engaging the screw shank and urging the collet member axially into increasing mating engagement with the base member when the screw is rotated. The base member and the collet member together define cooperating wedge means for urging at least a portion of the collet member increasingly radially outwardly as the base member and the collet member are increasingly axially engaged so as to force the collet member into tight engagement with the second tube section.
Abstract: An improved structure is provided for connecting an end of an elongate member to an end plate. The end plate is provided with an aperture for receiving a fastener having a threaded shank adapted for extending through the aperture and having a head for engaging the end plate. The structure includes at least a first slot in the elongate member. A retaining member is provided for being positioned in the elongate member slot. The retaining member has two oppositely extending end portions for each projecting laterally beyond the elongate member and engaging the elongate member. The retaining member defines a threaded bore for threadingly receiving the threaded shank of the fastener.
Type:
Grant
Filed:
December 21, 1988
Date of Patent:
January 30, 1990
Assignee:
Hirsh Company
Inventors:
Mark Ferdinand, Milton E. Handler, Richard Sylvan, Herbert Baisch
Abstract: An improved threaded fastener is provided with a shank, a head connected to the shank, and a thread form on the shank terminating below the head. A plurality of lugs are provided above at least a portion of the thread form and are circumferentially disposed under the fastener head around the shank seriatim from a first lug to a last lug. Each lug defines an exposed engaging margin extending from the fastener shank at an acute angle relative to the longitudinal axis of the fastener. The maximum radial dimension of each lug progressively increases from the first lug to the last lug while a corresponding maximum axial dimension of each lug progressively decreases whereby the acute angle becomes progressively greater.
Abstract: A storage assembly is provided with at least one adjustable hook for engaging a support rail which can be attached to a vertical surface, such as a wall. Each hook has two cantilever engaging members which are engaged with the rail through T-shaped apertures. The hooks are easily inserted into, or removed from, the support rail by deflecting one of the cantilever members.