US78250A - withey - Google Patents

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Publication number
US78250A
US78250A US78250DA US78250A US 78250 A US78250 A US 78250A US 78250D A US78250D A US 78250DA US 78250 A US78250 A US 78250A
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Prior art keywords
withey
plane
supporting
planes
proper
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Expired - Lifetime
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/16—Tables with tops of variable height with means for, or adapted for, inclining the legs of the table for varying the height of the top, e.g. with adjustable cross legs

Definitions

  • a B are parallel planes of wood, or other suitable material, of the proper dimensions.
  • D is a supporting braee, secured to the under side of the plane B by a proper hinge, and engaging, at its lower end, with the rack E, upon the upper side of the plane A.
  • F is a similar brace, used see. check, to prevent the upper plane from passing beyond the pointintended, when being raised for use, by-means of a stop, G, upon the upper side of the plane A.

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  • Pipeline Systems (AREA)
  • Stringed Musical Instruments (AREA)

Description

J. B. WITHEY. PENMANS ARM REST.
No. 78250. Patented Ma 26 1868.-
772721 ewe:
1111211 tetra gaunt. ffing.
l JEROME 13.. WI-THEY, or LEXINGTON. MICHIGAN.
Letters Patent No. 78,250, dated Maj; 26, 1868.
IMPROVEMENT IN PBNMENS ABM-B38138 up some time n in mm gem mm on making part Hi 11;: me.
TO WHOM IT MAY CONCERN:
Be it known that I, JEBOME 1B.'WITHEY, oiLexington, in the county of Sanilac, and State of Michigan, have invented a certain new and useful Ann-Rest, for the use of book-keepers and others; and I do declare that the following is a true and accurate description thereof,'reference being bad to the accompanying drawings, and to the letters of reference marked thereon, and making part of this specification.
A B are parallel planes of wood, or other suitable material, of the proper dimensions.
0 Oare'adjustable supporting connections, securing the upper to the lower plane, secured to the planes by proper fastenings. V p
D is a supporting braee, secured to the under side of the plane B by a proper hinge, and engaging, at its lower end, with the rack E, upon the upper side of the plane A.
F is a similar brace, used see. check, to prevent the upper plane from passing beyond the pointintended, when being raised for use, by-means of a stop, G, upon the upper side of the plane A.
What I claim as my invention, and desire to secure by Letters Patent, isp The planes AB, the adjustable supporting-connections C G, the supporting-brace D, the "rack E, the checkbreee F, and the step G, when arranged substantially as described and for the purposes set forth.
JEROME B. WITHEY. Witnesses H. F. Ensure, J. W. Houenrnnm.
US78250D withey Expired - Lifetime US78250A (en)

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US78250A true US78250A (en) 1868-05-26

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2658560A (en) * 1951-02-21 1953-11-10 Frank W Cawthon Armrest
US4736690A (en) * 1986-09-29 1988-04-12 Linn Van Norman Lifting table top mechanism
US20090200437A1 (en) * 2008-02-11 2009-08-13 Ole Falk Smed Adjustable Height Keyboard Support
US20140062023A1 (en) * 2012-09-05 2014-03-06 Blair Medford Burtan Mechanism For Raising and Lowering a Weaponry Target
US9392870B2 (en) * 2014-07-14 2016-07-19 Michael J. Suman Adjustable laptop support for electronic devices

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2658560A (en) * 1951-02-21 1953-11-10 Frank W Cawthon Armrest
US4736690A (en) * 1986-09-29 1988-04-12 Linn Van Norman Lifting table top mechanism
US20090200437A1 (en) * 2008-02-11 2009-08-13 Ole Falk Smed Adjustable Height Keyboard Support
US7950338B2 (en) * 2008-02-11 2011-05-31 Trade Management Group Limited Adjustable height keyboard support
US20140062023A1 (en) * 2012-09-05 2014-03-06 Blair Medford Burtan Mechanism For Raising and Lowering a Weaponry Target
US9097498B2 (en) * 2012-09-05 2015-08-04 Birchwood Limited Mechanism for raising and lowering a weaponry target
US9392870B2 (en) * 2014-07-14 2016-07-19 Michael J. Suman Adjustable laptop support for electronic devices

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