US673752A - Support for mirrors. - Google Patents

Description

No. 673,752. Patented ma 2, I901. H. BAUER & H. n. CARTWRIGHT.

SUPPORT FOR MIRRORS.

(Application filed Sept. 1, 1900.) (llw Model.)

I INVENTOB Wfw y C%Z*Q% romvsrs lTF ATE T FFICE.

HENRY BAUER AND HARRY DUDLEY OARTVVRIGHT, OF SAN FRANCISCO, CALIFORNIA.

SUPPORT FOR MIRRORS.

SPECIFICATION formingpart of Letters Patent No. 673,752, dated May '7, 1901. Application filed September 1r1900. Serial No. 28,855. (No model.)

To (0 whom, it may concern:

Be it known that we, HENRY BADER and HARRY DUDLEY CARTWRIGHT, citizens of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Supports for Mirrors, of which the following is a full and complete specification, such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to supports for mirrors; and it has particular relation to imp rovenients upon the class of mirror-supports such as is"-illustrated in our previous patent, No. 592,042, dated October 19, 1897.

The object of our present improvement is to simplify and perfect the general structure of the support and produce a simple and improved device of this character in which friction upon the supporting elbow-rod when the mirror is drawn out thereon horizontally away from the main support will be reduced to a minimum.

The invention is fully disclosed in the following specification, of which the accompanying drawings form a part, in which the separate parts of our improvement are designated by the same numerals of reference in each of the views, and in which Figure 1 is a rear view of a mirrorframe provided with our improved support. Fig. 2 is a detail sectional view taken on the line 0am of Fig. 1; Figs. 3 and at, plan and side views, respectively, of a modified form of construction.

When spring-clamp devices bear directly upon the elbow-rod which supports the mirror, to retain said rod in the position to which it is turned in the adjustment of the mirror at various angles with respect to a vertical plane, as shown in our above-mentioned previous patent, considerable tension is necessary, especially in the case of heavy mirrors, and it is thus difficult to pull the elbow-rod in and out in the adjustment of the mirror laterally with respect to its main support.

It is one of the main purposes of our present invention and improvements to reduce all friction with respect to the elbow-rod in the operation of adjusting the mirror'laterally with respect to its main support and at the same time provide effective spring or clamping devices which will operate to retain the mirror safely in any adjusted position at an angle to a vertical plane when the mirror is at any point of adjustment in a lateral plane with respect to its main support and upon the elbow-rod. This object we attain by having the spring or clamping devices which operate to retain the mirror in adjusted position at an angle to the vertical plane bear with relation to the tube in which the elbowrod slides instead of with relation to the elbowrod itself, and in connection with this main structural arrangement our present invention embodies various other specific features of construction and improvement, substantially as will be hereinafter fully described.

Referring to the drawings, 1 designates a respect thereto. This tube is of hexagonal, square, or angular contour in cross-section, and it has hearings in the side pieces 2 2 of the mirror-frame. One end of said tube 3 portion thereof, and is adapted to turn with may be closed, while its other end is open, as S0 at 5. The bearings for said tube in its revoluble movement are formed by cylindrical exterior portions or enlargements 6, approximately provided upon the tube and operating in correspondingsegmental recesses 7, formed in the side pieces 2 2 of the frame. Said side pieces also carry clamping-plates 8, which complete the bearings for the portions 6 and at the same time exert a spring tension with respect to said portions, whereby the tube is frictionally retained in the position to which it has been turned in the operation of adjusting the mirror at an angle with respect to the vertical plane. These plates 8 preferably consist of a spring-strip secured at the rear of ment as just described it will be,understood that the tube freely turns in or with relation to the mirror-frame, so that the latter can be adjusted at any angle with respect to a vertical plane, but that said tube will be frictionally engaged by the clamps or bearing-plates 8 to a snfficient extent to cause it to maintain the position to which it is adjusted against the weight or gravity of the mirror. The construction just described also provides a very simple and inexpensive frictiOnal connection between the tube and the mirror frame, whereby the parts can be readily connected together or disconnected for purposes of substitution or repair.

The tube 3 receives an elbow-rod 11, which in its main portion is of approximatly the same length as the tube and corresponds thereto in its angular cross-section. The elbowrod is thus in locked engagement with the tube when the mirror is turned at an angle with respect to the vertical plane; but an outward movement of the mir'rorin a horizontal plane with respect to its fixed support will be permitted by the sliding operation of said tube upon the elbow-rod.

It will be understood that the rotary or turning movement of the mirror with respect to the elbow-rod and fixed support is permissible at any point and with relation .to the position of the mirror in its adjustment laterally in a horizontal plane with respect to said fixed support. It will further be understood that the elbow-rod and tube both maintain a fixed posit-ion in relation to the main support and with respect to any rotary or turning movement of the mirror, the latter being merely turned upon the tube and elbow-rod against the frictional contact or operation of the clamps or plates 8, which are carried by the mirror-frame. The elbow-rod passes into the open end of the tube 3 at one side of the frame, whichis provided with asuitable opening 12 for this purpose intersecting the open end of the tube. The outer end of the elbowrod is turned at an angle to its main portion and is pivotally mounted, as at 13, in a suitable bracket or support 14, which in practice is secured to any permanent fixture, the arrangement being such that said elbow-rod will freely swing or turn in a horizontal plane with respect to the said main support 14:.

In the first two views of the drawings we have illustrated a simple construction in which the bearings for the cylindrical portions of the tube are formed by segmental recesses in the sides of the frame, this construction being adapted for those mirrors in which the mounting can be conveniently effected within the plane of the frame. In some cases and under some circumstances it is preferred to mount the tube outside of the frame proper, and in Figs. 3 and 4 we have illustrated a modified structure which permits of this arrangement. As shown in said views, a bearing-block 15 is secured in any suitable manner at the rear edge of the side of the mirrorframe and forms the base of the tube-bearing,

while a clamping or bearing plate 16 projects over the bearing-block 15 and is likewise secured to the sides of the frame, the cylindrical beari ng portions of the tube (not shown in these views) being received between said members 15 and 16, as will be readily understood. In this construction the opening 12 in the side of the mirror-frame is of course unnecessary.

The operation and advantages of our invention will be readily understood. The device is exceedingly simple and at the same time efiective and positive in operation, and it permils of the free adjustment of the mirror into any desired position with relation to the main support.

An important feature of our invention exists in the fact that the mirror is maintained upon a single elbow rod or support, whereby extreme simplicity of construction and inexpensiveness are attained.

Having fully described our invention, we claim as new and desire to secure by Letters Patent 1. An improved support for mirrors, comprising a tube transversely arranged with respect to the mirror-frame, the frame having a turning bearing upon said tube, and a rod carried upon a permanent support and received by said tube, the tube and rod being locked against rotary movement, and the tube being adjustable longitudinally upon the rod, substantially as and for the purpose set forth.

2. An improved support for mirrors, comprising a tube transversely arranged with respect to the mirror-frame, and cylindrical exteriorportions carried by said tube, bearings for said cylindrical portions carried by the mirror-frame and embodying a spring-clamp, and a supporting-rod carried by a permanent support and received by said tube, the rod and tube being locked against relative turning and the tube being adjustable longitudinally upon the rod, substantially as and for the purpose set forth.

3. An improved support for mirrors, comprising a tube transversely arranged with respect to the mirror-frame and angular in crosssection and provided with exterior cylindrical portions, the mirror-frame carrying bearings receiving said exterior cylindrical portions, said bearings comprising a spring plate or clamp, and an elbow-rod carried upon a per manent support and of angular contour in cross-section, said rod being received by said tube and the tube being adjustable longitudinally upon the rod, substantially as and for the purpose set forth.

In testimony that we claim the foregoing as our invention we have signed our names, in presence of the subscribing witnesses, this 21st day of August, 1900.

HENRY BADER. HARRY DUDLEY CAR'lWRIGHT.

Witnesses:

L. MEININGER, A. C. UNSWORTH.

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