US967493A - Adjustable stand. - Google Patents

Description

H. G. BROWN. ADJUSTABLE STAND. ArPLIoATIoN-PILED MAY 1s. 1909.

967,493. Patented Aug. 16,1910.

Hermans e. BROWN, or Los incarna crimroana.

ADJUSTABLE STAND.

Specicaton of Letters Patent.

Application filed May 13, 1909.

Patented Aug. 16, 1910.

Serial No. 495,793.

To all whom Lt may concern:

Be it known that I, HOLMES Gr. BROWN, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements 4in Adjustable Stands, of which the following is a specification.

My invention relates to stands wherein is provided means for adjusting the same, and more particularly has reference to stands especially adapted to carry a mirror.

The prime object of my invention is to provide a stand for mirrors, such as a shaving or a dressing mirror, which will permit of vertical adjustment of the same, and also permit the mirror to be swung in both a vertical and horizontal plane.

It is also of the objects of my invention to provide a simple means for effecting said adjustments, whereby a maximum number of such adjustments can be effected by means of a minimum number of parts.

Another object of my invention is to pro vide means whereby, should the apparatus by which the standard is secured when raised vertically fail to hold, the mirror will be saved from being broken.

These features are all clearly illustrated in the accompanying drawings, in which z- Figure 1 is an elevation of my improved stand with a mirror mounted thereon. Fig. 2- is an enlarged detail view, partly in section, of the principal actuating parts of my device. Fig. 3fis a section taken on line 3-3 of Fig. 2, showing the raising mechanism. Fig. 4- is a section taken on line 4--4 of Fig. 3. Fig. 5 is a plan view of the foot of the stand. Fig. 6 is an enlarged central vertical section of the lower portion of the stand body showing the means for securing the lifting wires, and also the air cushioning means. Fig. 7 is a section taken on line 7-7 of Fig. 6 showing the means by which the mirror support is guided and kept from rotation. Figs. 3 and 9 are enlarged detail views of parts of the mirror actuating mechanism.

Referring now more specifically to the drawings, reference numeral 10 indicates av spreading base supported upon suitable rollers, or casters 11, and carrying the upright standard 12 which has screw-threaded engagement with the base as indicated at 13.`

Standard 12 consists of a tubular outer member 14 and an inner hexagonal member 15.

The outer tubular member 14 serves to give a neat appearance to the stand, while the inner hexagonal member 15 serves as a guiding means in the vertical adjustment of the mirror support or stem 416. Mirror support 16 is provided atits lower end with an elongated screw-threadedportion 17, which bears the hexagonal nut 18 snugly fitting the hexagonal member 15, and smaller nut 19 which serves as retaining member for the packing 20; It will be seen by reference to Fig. 6 that the lower end of standard 12 is closed and provided with a restricted passage 21,`the object of which will appear later. j

The mirror support 16 is chambered at its upper end, as indicated at 22, in which is fitted a stud member 23 provided with frictional engaging means 24 at its end, which engage the walls of the chamber. The support 16 also pivotally bears an elbow 25 at its upper portion within which is supported a rod or arm 26 extending at right angles to the support 16. Said rod 26 is provided with an opening 27 within which the stud member `23 is fitted. `At its outer end the rod 26 bears a vertical head or journal member`28 having a vertical bore withinwhich is fitted abearing or pintle 29. The bearing 29 has an enlarged upper portion which is secured by means of suitable fastening means 30 to the bracket or main mirror frame 31. Bearing 29 is provided with an angular vertical passageway therethrough, within which is slidingly mounted the angular shaft or shank 32 of the adjusting handle 33. Upon the main mirror frame is provided a bearing stud 34 on which is pivotally supported a lever 35 which extends to one side of the mirror frame, and has pivotal engagement with the rod 36 connecting the same with the crank 37. At its .other end the lever 35 isprovided with a longitudinal slot 38 within which is fitted the end of rod 39 con nected with adjusting handle 33. Rod 39 is guided through the frame 31, as shown inFig. 2. The mirror is accurately balanced in the mirror frame, and is directly con nected with crank 37, as indicated at 40. At the upper end of standard 12 I provide a lifting mechanism, which comprises a cap side of the drum 44 is provided with a ratchet wheel 45 which is engaged by a spring pressed dog 46 carried on drum 47 loosely mounted on the shaft 43. I provide the drum 47 with a4 suitable band brake 48, the object of which is to limit rotation thereof. I also provide shaft 43 with a crank 49 secured thereto. I provide support 16 with a stop 50 which will engage crank 49 when the standard 16 nears its lowermost position. Suitably secured upon drum 44 and to the hexagonal nut 18 is a lifting member, preferably formed of piano wire, which is adapted to raise the mirror support, as will be hereinafter described. If desired I may provide a suitable connection, such as a light chain 52, between the mirror and the frame to prevent its swinging too far, In order to keep the band brake 48 from rotating, I provide a pin 48a in one of the arms of the cap which rojects into the path of one end of the bandi) brake as indicated in Fig. 4.

The operation of my improved mirror and stand is as follows: When it is desired to adjust the mirror and its frame vertically, shaft 43l is rotated in the direction indicated bythe arrow 53 in Fig. 2, whereupon the wire 51 will be wound upon the drum 44, and through its connection with nut 18' will cause the standard 16 to be raised vertically. During such movement the standard 16 is guided through cap 41, and is prevented from rotating by means of hexagonal member 15. Standard 16 is prevented from being forced out of guide-way 15 by means of-stud 54. If for any reason the dog 46 should fail to engage ratchet wheel 45 when the mirror support 16 is in the raised position, thus allowing the same to fall, the packing 20 will act as a piston, and the mirror support will. be air cushioned and so prevent breaking the mirror. The restricted. passage 21, however, will allow the air to gradually escape therethrough when it is Vdesired to lower the device normally. When it is desired to so lower the standard, the crank 49 is turnedy backward, the dog 46 keeping in engagement with the ratchet wheel, while band brake 48 yields sufiiciently tol allow the backward movement of crank 49, thus allowing the support 16 to descend. rIhe lifting wire 51 would tend to buckle and become stripped from its drum should the crank 49 be rotated backward too far. To prevent this I have provided the stop 50 toengage said crank when the low position of the standard 16 is reached, thereby effectually preventing further backward rotation of said crank. The mirror frame is adapted to be swung bodily in a horizontal plane through the pivotal elbow 25 provided at the top of support 16, and is retained in any desired position by means of the frictional engaging means 24, as will be readily understood. When it is desired to rotate the frame 31 on its vertical axis, the handle 33 is rotated, and since its angular section 32 engages bearing 29, which is securely fastened to mirror frame 31, it is seen that the mirror will be rotated, hen it is desired to swing the mirror about a horizontal axis, handle 33 is pulled downward or raised upward according to the direction in which 1t is desired to swing the mirror, whereupon rod 39, through its engagement with slot 38, will cause the lever 35 to be swung on its pivot 34, thereby rotating the mirror by means of crank 37 and connecting rod 36. Since the mirror is in perfect balance, it will remain in any position to which it is swung.

Having described my invention what I claim as new and desire to secure by Letters Patent is 1. In an adjustable stand, in combination, a head, means for supporting the same, a bracket adjustably supported in said head, a member adjustably supported in said bracket, an adjusting handle mounted in said head adapted to adjust said bracket, and means connecting said handle with said member for adjusting said member with respect to said bracket.

2. In an adjustable stand, in combination, a head, a bracket mounted to rotate in said head on a substantially vertical axis, a member mounted to rotate in said bracket on a substantially horizontal axis, a. handle mounted in said head adapted to rotate said bracket, said handle being adapted to slide in said head, and means connecting said handle with said member to adjust said member by a sliding movement of said handle.

3. In an adjustable stand, in combination, a head having a vertical bore therein, a pintle rotatably mounted in said bore, a handle having a shank sliding in said pintle and affording means for rotating said pintle, a bracket attached to said pintle and adapted to be rotated by said handle when said handle is rotated, a member rotatably mounted in said bracket, and means connecting said handle with said member to rotate said member by a sliding movement of said handle.

4. In an adjustable stand, in combination, a standard, an arm supported thereby and extending laterally therefrom, a head carried by said arm, a bracket mounted in said head to rotate on a substantially vertical axis, a mirror mounted in said bracket to rotate 011, a substantially horizontal axis, and means at said head for adjusting said bracket and said mirror on said axis of rotation respectively.

5. In an adjustable stand, in combination, a standard, a steln adjustably mounted in said standard, an arm carried by said stem and extending laterally therefrom, a head carried by said arm and having a vertical bore, a pintle rotatably mounted in said bore, a handle having an angular shank sliding in said pintle and adapted to rotate said pintle, a bracket attached to said pintle, a mirror rotatably mounted in said bracket, and means connecting` said handle with said mirror for adjusting said mirror With respect to said bracket, said handle affording means for rotating said bracket on the axis of said bore.

6. In an adjustable stand, in combination, a standard, a stem adjustably'mounted in said standard, an arin carried by said stein and extending laterally therefrom, a head carried by said arm and having a vertical bore, a pintle rotatably mounted in said bore, a handle having an angular shank sliding in said pintle and adapted to rotate said pint-le, a bracket attached to said pintle, a mirror rotatably mounted in said bracket and means connecting said handle with said mirror for adjusting said mirror With respect to said bracket, said handle atording means for rotating said bracket on the axis of said bore, said standard having a bore therein, and a head carried by the lovver end of said stem sliding in said last named bore and adapted to compress air in the lower end of said bore to cushion the downward move-l ment ot said stem, said standard having a vent permitting the slow escape of co1npressed air.

In Witness that I claim the foregoing I have hereunto subscribed my naine this 4th day ot' May, 1909.

I-IGLMES Gr. BROWN.

Vitnesses:

T. L. MEAD, Jr., E. A. STRAUSE.

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