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Publication numberUS213775 A
Publication typeGrant
Publication dateApr 1, 1879
Filing dateFeb 3, 1879
Publication numberUS 213775 A, US 213775A, US-A-213775, US213775 A, US213775A
InventorsEobeet S. Redman
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in adjustable brackets
US 213775 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

"R. s. REDMAN- & P. B. GONKLIN.

Adjustable-Bracket.

No. 213,775. Patented April I, 1879.

m M if N. PETERS, PHOTD-LITNOGRAPMER. WASHLIGTDN. DV 5- UNITED STATES PATENT ()FFICE.

ROBERT S. BEDMAN AND PHILETUS B. GONKLIN, OF NEWARK, NEW JERSEY.

' IMPROVEMENT IN ADJUSTABLE BRACKETS.

Specification forming part of Letters Patent No. 213,775, dated April 1, 1879; application filed February 3, 1879.

To all whom it may concern:

Be it known that we, RoBEn'r S. REDMAN and PHILETUS B. OONKLIN, both of the city of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful lmprovements'in Adjustable Brackets, the construction and operation of which will be fully understood from the following description, reference being had to the accompanying drawings, forming part of this specification, in which-- Figure 1 represents a side view of ourbracket in extended position. Fig. 2 represents a side viewof the same in raised position, and dotted lines represent the same in lowered position. Fig. 3 is a modification.

Similar letters of reference indicate corresponding parts.

The object of this invention is to construct a neat, cheap, and most effective bracket, capable of adjustment from a point at or near its extremity, which enables the bracket to be raised or lowered with greater case than heretofore.

In the case here presented, A A represent two parallel arms pivoted to the swinging piece B, the bracket-extension 0 being pivoted to the said arms A A. Upon the outer extremity of the lower arm, A, there is a toothed Qsegment, D, forming a positive hold for the rod E to lock in, and as the spring F is constant in keeping the said rod bearing against the toothed segment, there can be no possibility of its slipping and letting the bracket down.

G is a handle affixed to the rod E, near the post H, which forms aconvenient gripe for the hand of the user.

It will here be observed that this bracket can be moved either up or down without noise by simply holding the rod back with a firm gripe, and a great advantage is gained, especially for dentists, in this case, as it only requires the use of one hand to manipulate, and this without having to reach, so that it does not interfere with the free use of his other hand, and, lastly, does not in any way interfere with the most nervous patients comfort.

Upon the outer extremity of the bracket-ex tension 0 we have shown a revolving shelf, but intend in practice to make the same capable of holding a lamp, druggists bottles, and such other articles as may be needed.

Although we prefer the rod E as a stop, it being the strongest and simplest device for the purpose, yet an ordinary pivoted pawl, held in place by a spring and connected with the handle by a cord, wire, or chain, may be substituted for the rod E and spring F, in which case it may be advisable to pivot the handle to the arm 0, as shown in Fig. 3.

What we claim as new is The combination, with the arm A, support B, arm 0, and the arm A, having at its outer extremity the toothed segment D, with the rod E, spring F, and handle G, the whole constructed and arranged substantially as shown and described, for the purpose set forth.

ROBERT S. BEDMAN. PHILETUS B. GONKLIN.

Witnesses:

WM. R. PETERS, CHARLES H. NAsH.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4003536 *Jun 27, 1975Jan 18, 1977Grant Hardware CompanyIntravenous bottle support arm
US4616798 *Feb 26, 1985Oct 14, 1986Haworth, Inc.Adjustable support for CRT keyboard
US4826123 *May 1, 1987May 2, 1989Knoll International, Inc.Adjustable keyboard support
US5037054 *Jun 13, 1990Aug 6, 1991Waterloo Furniture Components Ltd.Adjustable support mechanism for a keyboard platform
US5145136 *May 17, 1991Sep 8, 1992Waterloo Furniture Components Ltd.Adjustable support mechanism for a keyboard platform
US5257767 *Jul 21, 1992Nov 2, 1993Waterloo Furniture Components, Ltd.Adjustable support mechanism for a keyboard platform
US5292118 *Jan 31, 1992Mar 8, 1994Huffy CorporationBasketball backboard elevator system
US5513579 *Jul 16, 1993May 7, 1996Waterloo Furniture Components, Ltd.Adjustable computer keyboard support mechanism
US5697303 *Jun 7, 1995Dec 16, 1997Waterloo Furniture ComponentsAdjustable computer keyboard support mechanism
US6135404 *Nov 5, 1998Oct 24, 2000Weber Knapp CompanyKeyboard mounting mechanism
US6883764Jul 19, 1999Apr 26, 2005Humanscale Corp.Keyboard support mechanism
US7331883Sep 27, 2005Feb 19, 2008Russell CorporationSpinning nut basketball elevator system
US7335119Sep 29, 2005Feb 26, 2008Russell CorporationRatchet elevator system
US7581791Jul 1, 2005Sep 1, 2009Humanscale CorporationErgonomic chair arm
US7841569Mar 20, 2006Nov 30, 2010Humanscale CorporationKeyboard support mechanism
US7841570Oct 21, 2008Nov 30, 2010Humanscale CorporationKeyboard support mechanism
US8104837Jul 16, 2008Jan 31, 2012Humanscale CorporationErgonomic chair arm
US8570723Jun 24, 2011Oct 29, 2013Myerchin Enterprises, Inc.Actuated hinge and cable assembly for use with computer display monitors
US8576553May 17, 2011Nov 5, 2013Myerchin Enterprises, Inc.Base with counterweight for display screens
US8727292Apr 11, 2012May 20, 2014Nec Access Technica, Ltd.Image reading system using an angle adjustment device
US8840188Jan 30, 2012Sep 23, 2014Humanscale CorporationMovable arm pad
US20090257818 *Mar 20, 2009Oct 15, 2009Nec Access Technica, Ltd.Angle adjustment device and image reading system using the same
WO2006017065A2 *Jul 1, 2005Feb 16, 2006Humanscale CorpErgonomic chair arm
Classifications
Cooperative ClassificationF16M11/04