US22838A - James lee - Google Patents

Description

2 Sheets-Sheet 1. I J. LEE.

Stereoscope. No. 22,838. Patented Feb; 1. 1859.

2 Sheets-Sheet 2. k LEE. S tereoscope.

Patented Feb; I, 18 59.

UNITE sTAT JAMES LEE, OI" NEW YORK, N. Y., ASSIGNOR TO HIMSELF AN!) MILTON FINKLE, Oi SAME PLACE.

STEREOSCOPIC APPARATUS.

Specification of Letters Patent No. 22,838, dated February 1, 1859-.

To all whom it may concern:

Be it known that I, JAMES LEE, of the city, county. and State of New York, have invented a new and useful Improvement in Stereoscopic Machines; and I hereby declare that the following is a full, clear, and exact description thereof.

l igure 1. is a front sectional View of the machine. Fig. 2, an end view showing the internal arrangement. Fig. 3, a section detached with the arbor. Fig. 41;. is a perspective, view of my improved adjustable picture holder adapted to hold pictures of various material and thicknesses, and may be attached to other varieties of stereoscopic machines. It, is the frame made of any suitable material, S S are springs with slots at the lower and catches at the upper end making them adjustable to various sizes of pictures and securing them in place, T is the picture. Fig. 5, is a transverse section.

The purpose of this improvement is to combine in one machine, by a simple and economical method an apparatus by which an indefinite number of stereoscopic views may be brought before the object glass with ease and facility.

By referring to 3, we have a section showing the picture holder F the arbor J, J, a part of the elastic band E, controlling or connecting band H, and hinges I, I.

The arms or holders Fs, are made of the proper length and thickness to correspond with the pictures with grooves K, K, at each end to receive the picture.

Upon the under side of the holder there is two projections or hinges I, I, with holes for the purpose of turning upon the arbors These hinges are placed at distances from the end varying to suit the thickness of each, that they may pass freely by one another, the operation of which is similar to the fan oint as may be seen by reference to I Fig. 2. These holders are connected to each other by av controlling band H, H Fig. 2, and the space is measured so that when one of the holders, as F, is before the object glass as when at 1. those adjoining as G, M, will be upon a line near the fulcrum and below the line of vision, and which from their own weight tend to a uniform condition. The object of this band is to bring up from a level, one of the holders into taintact with the elastic band E, by which it is carried up to the object glass, and when not in use the band folds down as seen below (9;, M, Fig. 2.

lengthening the projections or hinges I, I, fixed to the under side of the holders the circle increased by which an indefinite number of holders may be used.

l. F. F, I. I Fig. 2, are duplicates of the section Fig.

N is a grooved iiai'igc over which the clastic band 1*), passes.

In Fig. 1, A. is a knob or handle attached to the pulley B. C, are two friction rollers and. l) I) are two extensicui rollers which are used to extend the elastic band, so that the arm of the holders may perform about a three quarter revolution without contact.

The ope 'ation of the machineis as follows: by turning the knob A, Fig. l, motion is given to the large pulley B carrying the eiastlo band i) over the friction rollers C, ii, around the expanding rollers I), I), and over the groovedv end of the flange of the picture holders seen at N, Fig. 2, moving it forward in the direction of the arrows t), 0. As it passes the point P, F the controlling band II. draws the holder G in contact with the elastic band E at I). by which it is carried up to the point P, before the object glass, while F, has passed down and taken the place of M, which by its weight has passed to F below, and then by contlnulng to turn the knob or handle each of the pictures in turn is brought before the eye of the beholder.

I am aware that revolvingstereoscopicmachines have been in use previous to this time, operated in a variety of ways; one of which is by an endless band patented by Alex. Becl ers April 7th 1857 of the city of New York, but to my knowledge there is none constructed and. operated upon the principle here clain'icd.

I therefore claim 1. The. fan or segment hinge I Fig. 52; or its equivalent in combination with the picture holders 1* F for the purpose specified.

2. I claim the controlling band II, or

equivalent for the use herein specified.

3. I claiun the elastic band E or its equivalent in combination with the pulley B, and self to the exact proportions as I may vary rollers C, C, and D, D, for the purposes the same While I obtain the same end by specified. means essentially the same.

4. I claim the picture holder Figs. & and JAMES LEE.

5 5 as described, for the purposes set forth. \Vitnesses:

5. Finally I clalm the combmntion as set L. B. forth and descmbed, but do not confine lny- M. W. WILLIAMS.

Images