US3813074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Book stand
Assignee: Individual
•
Filing: 1972-05-08
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Granted: 1974-05-28
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Expires: 1992-05-08
Abstract
Abstract This invention consists of a horizontally disposed rectangular base that is supported above ones lap by means of a rectangular supporting wing that is hingedly secured to the underside of each longitudinal edge of the base. A pantograph type support is swingably secured for vertical adjustment to the upper longitudinal edge of the aforesaid rectangular base. A rectangular book rest is swingably secured between and to the upper point of the two already-mentioned pantograph type supports. The book rest is provided with structure adapted to hold the book or the like in place on the said rest in any desired position for easy reading.
Inventors
- 👤 C Mulvaney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:28
CPC Classifications
A; A47; A47B; A47B23/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
338 words
A book stand of the character described, comprising a horizontally disposed rectangular base having two folding pantograph supports positioned one each along the longitudinal edges thereof, the legs of said support each being integrally connected at the lower ends thereof by laterally disposed horizontal rods, one of said rods so connecting the lower pantograph legs being swingingly connected at opposite corners of said base, and the other so connecting the lower pantograph legs is free to be disposed at various longitudinal positions on the rectangular base through pantograph action by the manual operation of the uppermost corresponding legs of said pantograph, and so firmly adjusting the height of a rectangular book rest which is swingingly secured through its lateral axis to the uppermost points of the respective pantograph supports, said rectangular base being provided with a rectangular laterally disposed opening having rounded ends in the portion of said base furthermost from the user or rear thereof for handling or carrying the book stand when it is not in reading use; and an angle iron fastened on the upper side of each longitudinally disposed edge of said rectangular base for holding the two pantograph type supports, with spaced recesses in the upstanding edge of said angle irons for positioning longitudinally the lower legS of the pantograph supports which are connected by the other of said rods, said book rest being a planar member having a normally extending shelf at its lower edge and provided with a plurality of page holders, two of which are swingingly connected to the shelf and two page holders which are each swingingly connected to small clip angle irons which in turn are swingingly connected to screws that pass through the respective uppermost points of the two pantograph supports, these latter page holders being adjustable by rotation parallel to the surface of the book rest to contact any desired place on the book page, and also by rotation perpendicularly or normal to the surface of the book rest to adjust for books of varying thicknesses.
Claim 2
Dependent Claim
338 words
A book stand of the character described, comprising a horizontally disposed rectangular base having two folding pantograph supports positioned one each along the longitudinal edges thereof, the legs of said support each being integrally connected at the lower ends thereof by laterally disposed horizontal rods, one of said rods so connecting the lower pantograph legs being swingingly connected at opposite corners of said base, and the other so connecting the lower pantograph legs is free to be disposed at various longitudinal positions on the rectangular base through pantograph action by the manual operation of the uppermost corresponding legs of said pantograph, and so firmly adjusting the height of a rectangular book rest which is swingingly secured through its lateral axis to the uppermost points of the respective pantograph supports, said rectangular base being provided with a rectangular laterally disposed opening having rounded ends in the portion of said base furthermost from the user or rear thereof for handling or carrying the book stand when it is not in reading use; and an angle iron fastened on the upper side of each longitudinally disposed edge of said rectangular base for holding the two pantograph type supports, with spaced recesses in the upstanding edge of said angle irons for positioning longitudinally the lower legS of the pantograph supports which are connected by the other of said rods, said book rest being a planar member having a normally extending shelf at its lower edge and provided with a plurality of page holders, two of which are swingingly connected to the shelf and two page holders which are each swingingly connected to small clip angle irons which in turn are swingingly connected to screws that pass through the respective uppermost points of the two pantograph supports, these latter page holders being adjustable by rotation parallel to the surface of the book rest to contact any desired place on the book page, and also by rotation perpendicularly or normal to the surface of the book rest to adjust for books of varying thicknesses.
Claim 3
Dependent Claim
137 words
The invention of claim 1 wherein said base is provided with a pair of rectangular supporting wings, which are hingedly secured to the underside of respective opposite longitudinal edges of said base, thereby when extended holding the base above the lap or body of the use; said supporting wings being so hinged and stopped as to be firm in the extended position inclined to provide a base at the points of support on a chair or bed, wider than the upper hinged width, whereby each supporting wing provides lateral thrust against the other supporting wing giving greater lateral stability to the invention; each supporting wing having laterally disposed openings with rounded ends that, when the wings are folded under the base, are positioned opposite the opening in said base for conveniently holding and carrying the book stand.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |