US423551A

US423551A - Camera-stand

Info

Publication number: US423551A
Authority: US
Publication date: 1890-03-18
Anticipated expiration: 1907-03-18

Description

.(NoModeL) -E C FISHER GMRA STAND.l

No. 423,551. Patented Mar. 18, 1890 N. Firms, Pnmmnagnpher. waxmngmn. uc.

UNITED STATES PATENT OEEICE.-

EDVIN C. FISHER, OF CLAREMONT, NEV HAMPSHIRE.

CAM ERA-,STAN D.

SPECIFICATION frming part Of Letters Patent NO. 423,551, dated March 18, 1890.

Application iiled October 14, 1889. Serial No. 326,905. (No model.)

certain new and useful Improvements in Camera-Stands; and I do hereby declare the follow-ing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

The object of the invention is to improve the efficiency of camera-stands; and theinvention consists in the construction hereinafter described and pointed out.

In the accompanying drawings, Figure l is a front elevation, partly in section. Fig. 2 is a side elevation. Fig. 3-is a top plan of the base and standards. Fig. 4 is a horizontal section, on an enlarged scale, of the cameratable, on theline X X of Fig. 1. Fig. 5 is an enlarged side elevation, partly in section, of the camera-table; and Fig. 6 is a horizontal section, on an enlarged scale, of the same on line'Y Y of Fig. 1.

The two standards AA are bolted securely to posts or bracket-arms of the iron base B B', and are provided with interiorly-placed T- shaped grooves D D', to receive the correspondingly-shaped nuts G G', which-are connected by Ineans of the rods F F', secured eccentrically to the rotating plate E. This plate has a journal E in the side wall of the table C. Said plate is adapted to be turned by a lever E2, to draw the nuts and consequently the standards A A' toward each other, by which means they may be made to press against the table C withv a greater or less force, as desired.

A wire, cord, or strap is indicated by H H', the ends of which are secured near the top of the grooves D, the body of the wire or rope being extended down in the grooves and about pulleys I I' and spring-drum J, which are journaled in the ends of table C. L indicates a tilting board supported on the table and adjusted by the hand-screw M, which passes through the top of the table. The base is provided with rubber-covered casters K.

N indicates a catch, engaging the ilattened end of the axis of the spring-drum, it being shown engaged by full lines in Fig. 5 and disengaged by dotted lines. It is disengaged whenever it is desired to vary the tension of the spring in the drum.

lVhen the table C is rai-sed, the nuts G G' 55 slide in the grooves, eccentric-plateE having been turned to take off friction, and the rope is Wound upon the drum by its spring.

Any Well-known means of counterbalancin g may be substituted without departing from 6o the invention.

The distance apart of the standards, which are preferably made of elastic n1aterial such as Wood-may be regulated by the eccentric E, in the manner above explained, to increase or diminish the friction of the table with said standards.

By the use of the rods F F' and the nuts I am enabled to dispense with a cross-beam above the table, which beam would interfere 7o to Some extent with the elevation of the table and would render necessary higher standards than required by the present construction to secure the same elevation of the camera, and as there is no obstruction between my cameratable and the low base, it is obvious thata wide range of position in a vertical'direction is secured without any unnecessary height of the stand.

It is not essential that the grooves be made 8o of T form in cross-section, as any equivalent shape may be substituted, the nuts being correspondingly altered. Thus, for example, an L-shaped groove could be employed and rings or grooves might be formed on or in the ends of the levers and made to embrace the standards or suitable projections thereon Without sacrificing all the advantages of my improvement. The so-called nuts may alsobe formed integral with the rods by casting or other- 9o Wise, and other details can be varied by mechanical skill, as Will be understood. For example, instead of the plate having the rods attached eccentric-ally, a well known form ot nut having its interior oppositely screwthreaded at its ends and adapted to engage corresponding screw-thread on the rods F F' might be employed for adjusting, said rods.

Having thus described my invention, what I desire to secure by Letters Patent is- 1. The camera-stand consisting of the base B B', provided with rubber-covered casters,

IOO

the grooved standards A A', bolted to posts 4. The combination, with the standards fixed on the bese, the table C, and the eonhaving vertical grooves, and the table,of the neming-rods, and nuts, substantially as set Cords lying in the grooves, the pulleys, and 15 forth. the spring-drinn, substantiallyas set forth.

5 2. The combination, in a camera-stand, of In testimony whereof I have signed this the grooved standards, the table, the eonneetspecification in the presence of two subscribing-rods, and nuts, substantially as described. ing` Witnesses. f Y

3. The combination, in a Camera-stand, of T y the grooved standards, the table, the oonneot- ED IN C FISHER' Io ing-rods and nuts, and means of adjusting VVitn'esses:

the rods to slightly vary the distance of the S. RICHARDSON, standards, substantially as described. H. E. KEITH.