Desk-Mounted Retainer Device for Portable Sheet Clamps
OwnerScott Browninventor
Life of this patent
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Abstract
Disclosed is a device which may be used to secure a sheath or stack of papers contained in an apparatus such as a commonly-used architectural sheet rack clamp. The device is essentially a three-tiered rectangular structure forming two parallel, length-wise channels within the spaces defined by the three tiers. One channel, situated as the upper channel, is structured so as to securely accommodate the typical sheet clamp used to store such materials as architectural drawings, maps, and other similar over-sized sheets. The second, or lower, channel of the device is contains two adjustable fastening means, enabling attachment of the lower channel to a desk, draftsman's stand, or table.
Claims4
A device for retaining over-sized paper sheets, comprising a predominantly orthogonal longitudinal structure having two parallel, U-shaped channels, wherein the first such channel comprises an inner width dimension sufficient to contain the clasping section of commonly used portable sheet clamps, and the second such channel comprises an inner width dimension Which permits secure fit onto the edge of a worktable or desk, the upper channel further comprising a means for attaching said structure to a portable sheet clamp and the lower channel further comprising at least two means for fastening said lower channel onto said edge of a worktable or desk.
A retainer device comprising a primarily longitudinal unitary structure having
- a rectangular top plate having a top surface and a lower surface;
- a rectangular middle plate having a top surface and a lower surface;
- a rectangular bottom plate having a top surface and a lower surface;
- a rectangular back plate having an outer surface, an inner surface, wherein
- said top plate, middle plate, and bottom plate are oriented parallel to each other and orthogonally and permanently attached along their lengths, to the inner surface of said back plate, said attachments thereby forming (a) an upper channel running lengthwise between said top plate and middle plate and, (b) a lower channel running lengthwise between said middle plate and bottom plate;
- said unitary structure further comprising a plurality of threaded fasteners insertable perpendicularly through correspondingly threaded openings in said bottom plate, a lockscrew insertable perpendicularly through said back plate so as to emerge into said upper channel, and an acceptor slot excised from said back plate for acceptance of a threaded fastener of the type commonly found on portable sheet clamps.
A method of facilitating the securement and convenient use, at a desk, table, or drafting stand of a user, of a typical sheet clamp used to store such materials as architectural drawings, maps, and other similar over-sized sheet materials, by the employment of a device, by the steps of:
- constructing a rectangular top plate having a top surface and a lower surface;
- constructing a rectangular middle plate having a top surface and a lower surface;
- constructing a rectangular bottom plate having a top surface and a lower surface;
- constructing a rectangular back plate having an outer surface and an inner surface;
- orienting said top plate, middle plate, and bottom plate parallel to each other;
- attaching, orthogonally along their lengths, said top, middle, and bottom plates, to the inner surface of said back plate, said attachments thereby forming (a) an upper channel running lengthwise between said top plate and middle plate and, (b) a lower channel running lengthwise between said middle plate and bottom plate;
- providing for a plurality of threaded fasteners insertable perpendicularly through said bottom plate, a lockscrew insertable perpendicularly through said back plate, and an open slot excised from said back plate;
- attaching, by means of said threaded fasteners, said lower channel to said desk, table, or drafting stand;
- and
- attaching, by means of said upper channel and lockscrew, said sheet clamp.
Dependencies are inferred from the claim text.