US674810A - Photographic kit. - Google Patents

Description

UNITED STATES i JOSEF MATHEIN,

PATENT OFFICE. v

OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO E. n H. T.

ANTHONY t CO., OF NEW YORK, N. Y.

PHoToeRAPl-llc KIT.

SPEGKFIGATION forming` part of Letters Patent No. 674.810, dated May 21, 1901. Application led May 10, 19,00- Seral No. 16,146. (No model.)

To a/Z whom, it may con/cern:

Be it known that 1, JOSEF MATHEIN, a citizen of the United States, anda resident of New Haven, in the county of New Haven and State of Connecticut, (having my post-office address at 21 Elliot street, in said city of New Haven,) have invented a new and useful Photographic Kit, of which the following is a specification, reference being to the accompanying drawings, in which- Figure l illustrates an elevation of the kit, showing a glass plate within it. Fig. 2 is a vertical sectional view taken on the medial line of Fig. l. Fig. 3 is a view showing how two of my kits, each inclosing a plate, may be supported by each other so that the plates may drain and dry. Fig. et is a detail showing the method of forming the ledges which support the glass plate out of the material which constitutes the kit itself.

Photographers kits as heretofore made have necessarily been very perishable. They have usually been made of material which is liable to split and become warped and which will not withstand the application of moisture, much less any contact with the chemicals used in the developing process. They have necessarily been made very thin, because they must not be. thicker than the glass plates which they support, for if, so the plates would not be in proper focal plane. Moreover, the attachment of the little ledges or clips which support the glass plates and confine them within these thin kits has necessitated delicate workmanship in the original construction of them and also adds to their perishability, because of the necessarily insecure attachment of these devices to the body of the kit. My invention consists in making the kit of such material that it may be constructed all of one piece, there being no joints at the corners or at any other place, and the material must be such also that the ledges which confine the glass plate within the kit may all be swaged or pressed out from the single piece constituting the kit. Thus there is necessity for but one separate part, and that is a little latch or button which swings over one edge of the glass plate to confine it within the kit, and this partowing to the character of the material from which the kit is made, may be ployed the requisite thickness in the kit can be secured without forming any ribs, projecting points, or ledges upon it, which are apt to become distorted during use, and yet the weight of the kit is so slight that a full set of v plates can be carried with a camera for amateur or other use at a minimum of weight.

The advantages l secure are as follows:

First. The kit is made of one piece only, with the exception of the little latch referred to, and that may be attached in a durable manner. Consequently it is what may be called a jointless kit.

Second. The piece cut from the center of the kit may itself be used to make a kit of the next smaller size, thus economizing material and cheapening the manufacture.

Third. The kit can be immersed in the developer, if necessary, without injury to either it or the chemicals.

Fourth. A slot formed in the end or side of the kit may be used as a means of supporting two of them in a manner to be described, so that the plates will drain and dry eectively.

Referring tothe drawings, A is the body of the kit, and B a glass plate within it.

C C C C are four ledges which are swaged 0r pressed out of the material forming the kit itself.

D is asingle ledge,likewise swaged or pressed from the material forming the kit; but it projects from the opposite side of the kit from the ledges C C, &c.

E is an ordinary button or latch which is fastened by a pivot F at one end of the kit opposite the ledge D.

G is a slot cut through the body of the kit,

Within which the corner of another kit H (see IOO ledges against Which the glass plate rests hold it in the same plane or substantially the same plane as that occupied by the body of the kit itself, and the metal of which the kit is made 'is of substantially the same thickness as the glass plate, so that the proper focal plane of the latter will be maintained.

The operation is as-follows: To introduce a place within one of my kits, it is rst introduced in such manner that one of its ends passes between the ledges C and D, whereby it is supported against movement in either direction at that end, and then being properly entered Within the opening through the kit and dropped upon the ledges C at the opposite end the button E is turned over it, as shown in Figs. l and 2, whereby it is securely held in position. Y V

As heretofore stated, I prefer to use the metal aluminium from which to make the kits; but rubber or celluloid may be employed. If so, the ledges will obviously be formed at such stagein the manufacture as will enable this to be done, and if metal other than aluminium be employed, then if of a character which would be affected by the chemicals of the solution or which would itself injure the solutions they should be protected by lacquer, plating, or otherwise.

I elaimj l. A jointless photographers kit made of a single piece of 'material of substantially the thickness of the glass plate it is to support, and having ledges against which the plate may rest and be supported within the kit and in the same plane With it, said ledges being pressed from the-material of which the kit is made, for the purposes set forth.

2. A jointless photographers kit madeof a single piece of material of substantially-the 4o thickness of the glass plat-e it is to support,

ledges against which the plate may rest made integral with the kit itself, and a slot through one side of the kit adapted to receive the corner of another kit, for the purposes set forth.

3. A jointless photographers kit made of a single piece of material of. substantially the thickness of the glass plate Ait is t-o support, ledges against which the plate may rest pressed from the material of which the kit is 5o made, one at least of said ledges being pre-y sented oppositely to the others, and a button adapted ,to swing over the edge of the plate, for the purposes set forth.

4. A jointless photographers kit made of a single 'piece of aluminium of-substantially the same thickness as that of the plate it is to support, ledges pressed from the material of which the kit is made adapted to support the plate, and a button adapted to be swung over 6o the support of the plate pressed from it and presented` in opposite directions, and a buttonto coact with one or more of the ledges for the confinement of the plate Within the kit, for the purposes set forth.

Signed at New'Haven, in the countyoi` New 7.a

Haven and State of Connecticut, this 12th day of April, A. D. 1900.

JOSEF MATHEIN.

Witnesses W. .TRUEMAM G. F. FINLAY.

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