US120724A - Improvement in holders for stereoscopic pictures - Google Patents

Description

Patented Nov 7, 1871.

J 0 H N L D l B B L E Improvement in Holders for Stereoscopic Pictures. [No-120,724. 3

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UNITED STATE T IMPROVEMENT IN HOLDERS FOR STEREOSCOPIC PICTURES.

Specification forming part of Letters Patent No. 120,724, dated November 7, 1871.

To all whom it may concern:

Be it known that I, JOHN L. DIBBLE, of New York, in the county and State of New York, have invented an Improved Case or Holder for Stereoscopes, of which the following is a specification:

It is frequently important in a series of stereoscopic views to preserve a certain order in their arrangements. Thus, for example, a series representing a tour in Switzerland should follow each other in the proper order. With any collection of pictures there is likely to be a certain desirable diversity or, in some cases, sameness of view, which is pleasing, and, having been once arrived at, it is desirable to preserve-it.

Expensive instruments have been devised which present views thus successfully arranged on belts or chains. Various modifications of such instruments have been made; but the expense of any variety known to me is so serious as to preclude their adoption by persons of moderate means.

My invention is adapted to serve in connection with an ordinary cheap stereoscopic instrument. My case preserves the stereographs conveniently against dust and injuries in lying on the the table, and is convenient for their transportation. Its peculiar construction facilitates the inspection and partial enjoyment of the pictures Without an instrument by concealing one-half and exposing the other only to the eyes. What I esteem a more valuable quality, however, is the peculiar facility it affords for allowing the removal of the several pictures successively to be viewed in a stereoscopic instrument, and their replacement by putting each one un' der the pile, and thus maintaining the same order in the series indefinitely.

The following is a description of what I consider the best means of carrying out the invention. The accompanying drawing forms a part of this specification. V

Figure 1 is a longitudinal vertical section. Fig. 2 is a perspective view closed. Fig. 3 is a perspective view open. The latter is a double case, or one adapted to receive and store two sets or piles of stereoscopic views.

The invention is equally adapted to hold a single set, or two or more, as will be understood.

The main body A is formed'with sides, bottom, one end, and half top, as shown. The other end and the other half of the top are hinged together and to the fixed half of the the top of the main body, as indicated by B O, the hinged half top being represented by B and the hinged end by C. On opening the case these parts, B and 0, fold back upon the fixed half of the top, as indicated in Figs. 1 and 3. The top surface of the bottom of the main body is sunk obliquely near the hinged end 0, as indicated by a, and beyond this is a fiat surface, on which the end 0 rests, indicated by a.

When a stereoscopic view has been inspected sufficiently in an instrument, not represented, and. it is desired to return it into the case, the end is rested on the portion a of the bottom, and the picture is pushed endwise under the pile. The beveled surface a raises its entering gradually up and raises the entire pile of pictures previously in the case, allowing the new comer to be thrust smoothly under. The pictures being successively taken from the top and thus thrust underneath, the whole are preserved against scattering and injury, and all or any part may be inspected, and the same order of succession is preserved for an indefinite period.

The exposure of one-half only of the upper view, when looked at in my case, is a minor advantage, but one of some importance. The confusion due to the presentation of both views at once is entirely avoided, and the stereoscopic views may be enjoyed like ordinary views by thus inspecting them in my improved case.

I claim as my invention-- 1. A stereoscope-case, having the bottom near the open end formed with a beveled surface, a, adapted to receive and deflect upward the pie ture being introduced, and to guide it smoothly under the pile, as herein specified.

2. The folding end and half top 0 B, in combination With the main body A and beveled bottom a, the whole adapted to serve as herein specified. y

In testimony whereof I have hereunto set my name in presence of two subscribing witnesses.

JNO. L. DIBBLE.

Witnesses:

O. O. Lrvnves,

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