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Publication numberUS607675 A
Publication typeGrant
Publication dateJul 19, 1898
Filing dateAug 18, 1897
Publication numberUS 607675 A, US 607675A, US-A-607675, US607675 A, US607675A
InventorsLewis Bare
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Arm-rest
US 607675 A
Images(1)
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Description  (OCR text may contain errors)

L. BARR. ARM BEST.

(Application filed Aug. 18, 1897. Renewed Apr. 1, 1898.) 1

Patented .luly l9, I898.

(No Model.)

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LEVIS BARR, OF DAYTON, OHIO.

ARM-REST.

SPECIFICATION forming part Of Letters ,Patent No. 607,675, dated July 19, 1898. Application filed August 18, 1897. Renewed April 1, 1898. Serial No. 676,137. (No model.)

To aZZ whom it may concern:

Be it known that I, LEWIS BARR, of Dayton,

in the county of Montgomery and State of caved upwardly and adapted to act as a support for the forearm, said plate being provided upon its under surface with a longitudinal guideway engaging the upper of the blocks or slides. This construction thus permits universal movement'in any direction within its limit. 7

The invention consists of certain novel features and parts, which will be particularly described and claimed hereinafter.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a perspective View of the device. Fig. 2 is a cross-sectional elevation taken through the upper plate. Fig. 3 is a sectional plan taken through the guideways upon the upper plate, and Fig. 4 is a cross-sectional elevation taken through the pivoted blocks and showing a portion of the guideway of the lower frame.

The object of my invention is to provide a device for the use of bookkeepers, clerks, and all persons using a pen or pencil, and is designed to support the forearm and allow freedom of movement in any direction.

The invention comprises a lower frame consisting of the longitudinal bars A A, provided in their inner or opposed surfaces with a groove and connected at each end by crossbars A? They may also be connected at in termediate points by suitable cross=ties a, if necessary. These cross-ties, however, should be upon the under surface of the guideways to permit the blocks hereinafter described to slide over them. Preferably the under surfaces of the cross-bars A are covered with a cushion A which consists of a sheet of rubber, felt, or similar yielding material. This cushion prevents marring any object upon which the device is placed, and insures su fIi cient friction to hold the device securely in place.

The upper or arm plate D is preferably concaved, so as to fit the under surface of the forearm, and is also provided with strips D of rubber onsimilar materiahlocated at each end thereof. At each end of this plate D are fixed cross-bars B, extending downwardly and carrying the longitudinal bars B, which are provided upon their inner or opposed surfaces with grooves adapted to receive the edges of the sliding block 0.

Two blocks 0 and G are pivoted to each other by a central pivot C so that they may turn upon each other. These blocks are provided with bars upon each side, adapted, respectively, to engage the grooves in the bars A and B and to slide therein. This construc tion permits the upper plate D and the sliding blocks 0 and C to move longitudinally of the lower frame. It also permits of the upper plate D moving upon the blocks as well as pivoting thereon, and thus there is a universal movement of the upper plate D within the limits of the device. These limits may be increased by making the parts of larger size.

In using the device the lower frame is placed at the bottom of the page or sheet of paper to be Written upon and extending laterally of the same or substantially at right angles to the position of the forearm. The forearm isrested upon the upper plate D, which, being free to move with the arm in any direction, furnishes a support for the arm without affecting its freedom of motion.

This device will furnish a convenient sup port for the arm, and will thus avoid the tiring thereof due to continuous writing.

The device may be easily shifted from one place to another, so that it may be used in any position. It may be used for writing in books, drawing upon paper or other material, and for any use in which a pen or pencil is used by the hand.

The slide-blocks O and 0 maybe provided with balls I) and I), let into recesses in the blocks and bearing upon the horizontal and vertical surfaces of the guideways.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. An arm-rest, comprising a frame having longitudinal guideways and adapted to extend substantially at right angles to the forearm, slide-blocks pivoted one on the other, the lower block fitting the guideways on said frame, and a plate acting as an arm-rest, having longitudinal guideways engaging the up per of the slide-blocks and slidable thereon, and ball-bearings intervening said blocks and guideways, substantially as described.

2. An arm-rest, comprising a frame having longitudinal guideways, cross-bars attached to each end of the frame and having a cushion of yielding material beneath them, slideblocks pivoted one'on the other, the lower block fitting thetguideways on said frame,

and a plate acting as an arm-rest and having longitudinal guideways engaging the upper of the slide-blocks and slidable thereon, substantially as described.

3. An arm-rest, comprising a frame having longitudinal guideways, two slide-blocks pivoted one on the other, the lower block fitting each having a longitudinal guideway, and

two slides adapted to engage the respective guideways and pivoted one to the other, substantially as described.

LEWIS BARR. Witnesses:

JOHN D. Bononn, RoBT. ALBERS.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4069995 *Nov 16, 1976Jan 24, 1978Miller Leland DDynamic column support for feeder pan
US4129746 *May 2, 1977Dec 12, 1978Quest Automation LimitedElectrographic apparatus and hand rest for use therewith
US5058840 *Jul 10, 1990Oct 22, 1991Product Innovation, Inc.Apparatus and method for reducing repetitive or maintained stress injuries
US5108057 *Nov 14, 1990Apr 28, 1992Dandy Iii WalterFree sliding hand rest
US5398896 *Aug 6, 1993Mar 21, 1995Terbrack; William H.Dynamic support device for keyboards
US5405109 *Nov 18, 1993Apr 11, 1995Nordnes; MathisSupport for a forearm
US5685719 *Jan 13, 1995Nov 11, 1997Frank Bressler Rehabilitation Research, Inc.Computer assisted communication system for rehabilitating individuals suffering from speech impairment and minimal mobility in their upper extremities
US5851054 *Oct 16, 1997Dec 22, 1998Industrial Ergonomics, Inc.Ergonomic arm support
US5881976 *Nov 13, 1997Mar 16, 1999Gutowski; Walter M.Mobile palm heel, wrist and forearm support for use with keyboards
US5884974 *Oct 29, 1997Mar 23, 1999Industrial ErgonomicsErgonomic arm support and bracket
US5915655 *Mar 12, 1998Jun 29, 1999Gutowski; Walter M.Mobile palm heel, wrist and forearm support for use with keyboards
US5971331 *Jun 19, 1997Oct 26, 1999Getsay; James G.Wrist support for use with electronic computing devices
US6022079 *Nov 19, 1998Feb 8, 2000Industrial ErgonomicsErgonomic arm support
US6142570 *Dec 10, 1999Nov 7, 2000Industrial Ergonomics, Inc.Ergonomic arm support
US6203109Dec 29, 1999Mar 20, 2001Industrial Ergonomics, Inc.Ergonomic arm support
US6488244 *Feb 8, 2001Dec 3, 2002Ying Gang RuanTyping support
US7222826Nov 24, 2003May 29, 2007Andrew BerglundAdaptive arm support
US8269090Sep 24, 2008Sep 18, 2012Jeremy RussellKeyboard practice apparatus
WO1992000691A1 *Jul 10, 1991Jan 11, 1992Product Innovation IncApparatus and method for reducing repetitive or maintained stress injuries
WO1992008619A1 *Nov 14, 1991May 29, 1992Walter Dandy IiiFree sliding hand rest
WO2009040578A2 *Sep 24, 2008Apr 2, 2009Jeremy RussellKeyboard practice apparatus
Classifications
Cooperative ClassificationA47B21/0371