US362978A - Photographic camera - Google Patents

Description

(No Mode 1'1.) V B-Sheets-Sheet 1.

J. KREMENTZ.

PHOTOGRAPHIG UAMERL No. 362,978. Patented May 17, 1887:

WITNESSES U105 W4 (No'ModeL) 3 sheets-sheet 2.

J. KREMENTZ.

PHOTOGRAPHIO CAMERA.

No. 362,978. Patented-May 17, 1887;

Attorney.

N inns. Photo-Lithographer. Washingwn, ac.

1 a Sheets-Sheet a. J. KREMENTZ.

PHOTOGRAPHIG CAMERA.

(No Model.)

No. 362,978. Patented May 17, 1887.

UNITED STA ES PATENT OFFICE.

JOSEPH KREMENTZ, OF NEW ALBANY, ASSIGNOR OF ONE-HALF TO \VALTER N. ESCOTT, OF JEFFERSONVILLE, INDIANA.

PHOTOGRAPHIC CAMERA.

SPECIFICATION forming part of Letters Patent No. 362,978, dated May 17, 1887-.

Application tilcdApril 17, 1886. Serial No. 200,366. (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH KREMENTZ, a citizen of the United States, residing at New Albany, in the county of Floyd and State of Indiana, have invented certain new and useful Improvements in Photographic Cameras, of which the following is a full, clear, and exact description.

This invention relates to photographic camo eras of the class in which a plate-holdingbox is so combined with the casing that the plates may be exposed and then removed to a plateholding box without taking them from the camera.

The invention in this particular consists in certain constructions and also combinations of mechanism for facilitating the handling of the plates without disturbing the camera, as I will hereinafter specify and claim.

.1 The invention also relates to a shutter for the lens; and in this particular the invention consists in a'snap-shutter constructed and operating substantial] y as will'presentl y appear and be claimed.

In the accompanying drawings, illustrating my invention, in the several figures of which drawings like parts are similarly designated, Figure 1 is a perspective view with one side partly removed to expose the interior. Fig.

2 is a vertical longitudinal section. Fig. 8 is a vertical transverse section. Fig. 4 is a front view, and Fig. 5a partly-sectional elevation, of the shutter-operating mechanism. Fig. 6 shows in' perspective at the left the fo- 5 cusing-glass holder and at the right a plateholder; and Fig. 7 is a detail in perspective of the plate-operating mechanism, or platecarrier, as I shall hereinafter designate it.

The camera frame or casing A is an oblong 0 box of suitable construction, and is provided with a lensbox, B, and dark chamber 0, a focusing-door, D, and a central partition, E, the latter dividing the easing into upper and lower compart1nents,in the former of which the afore- 5 mentioned partitions are located. In thelower compartment is arranged a plateholder box, F, provided with horizontal side rails, a, which engage grooves 01' ways I) in the frame, so as to permit said box to be moved back and forth in said compartment. The box F is provided with a series of pockets, G, to receive and hold upright and separated from one another a focusing-glass, H, and a series of plate-holders, I. The holder for the glass H and the plateholders consist of metal frames provided with inturned edges 0 to receive and hold the glass and plate, respectively, (see particularly Fig. 5,) and the upper corners of these holders are provided with laterally projecting arms (1. Vertical ways J are providedin thesides of the frame, which receive and guide theplate-holder carrier, Fig. 7, to enable it to take a holder from the box F and put and hold it in posi' tion with respect to the lens for exposure, technically so called, and thereafter return it to the box and take up another, said carrier being also utilized for moving the focusingglass into and out of position in the same way. This carrier consists of sliding brackets or bearings 6, arranged in the ways J and swiveled to arms f, which arejointed to lovers 9, pivoted at h to the sides of the frame or casing'A at its rear. The levers 9 have jointed to them certain vertical rods, 43, which are suspended from the ends ofa crankshaft, j, borne by the frame or casing A between its cranked ends, and said crank-shaft is connected with an elbowlever, is, which projects through the rear of the casing and constitutes a handle, which, when pulled outward from the frame, will raise $0 the crank-shaft and series of devices i g f c, and when pushed into the frame will lower these parts. The position of rest of the brackets or bearings c is in line with the arms (I d of the plate-holders, and the said arms of one 8 5 or another of said holders are normally resting within or upon said bearings. (See Fig. 3.) The several holders I are successively or pro miseuously aligned with these brackets by means of a notched pull-piece, K, attached to the box F and. projectingthrough the front wall of the lower compartment, where it is held by acatch, L, engaging one of its notches, there being a notch for each socket in the said box. The box is movable baclrand forth in this com- 5 partment through the medium of its ways a I), and by an additional rail, M, on the bottom, if desired.

\Vhen a plate-holder and its plate have been raised into position for exposure, a slide, N,

is pushed in from the rear to go beneath and support said holder, and flat springs O serve to press against the back of the plateholder to keep it in position.

My shutter comprises the shutter proper, I, hinged at its lower end and provided with a toggle-lever, Z, which is connected to a shutter-operating slide, a, by a rod, 11, a spring, 0, acting against the toggle-lever to normally close the shutter. The shutter is held open by a spring-catch, p, engaging notches r in the edge of the slide at against the strain of the spring 0. A trigger, s, instantly releases the catch p, and the spring 0 thereupon instantly closes the shutter. It will be observed that my snap-shutter opens and closes, and hence may be opened and closed by one movement of the slide of the toggle-lever, so that its rapidity of working is largely increased.

There are some details of construction fully illustrated in the drawings not here specifieally described-for example,the provision at all points for preventing leakage of light, and the notehing of the pull it, so as to engage a plate on the frame to lock the holder-carrier in raised position for exposure. Itmay also be suggested that the crank-shaft might be pivoted at, say, points 2, and the bow 3 be extended beyond the frame, or a handle fromit project from the frame and be used as an operating device. There is a door, It, for the lower compartment which contains the box F.

I desire to lay special stress upon the compactness of arrangement of my camera, and also to the fact that by my means and method of operating the plates it is never possible to 5 have a negative light-struck.

iVllmt I claim is 1. In a camera, an upper and a lower compertinent and a plate-holding box arranged within the lower compartment, combined with a plate-holder carrier, 0 f g i j is, adapted to L engage the plate-holders in such box and present their plates for exposure in the upper compartment,and thereafter return them to the plate-holder box without moving the camera, substantially as described.

2. A camera having a lower compartment provided with horizontal slideways and vertical guides, combined with a movable plateholder box fitted in said slideways, brackets 0, arranged to operate in said guides, armsf, levers rods i, crankshaft and lever 70, co operating with said brackets to take a holder from the box, expose it in the upper compartment, and thereafter return it to the box, sub stantially as described.

3. The combination, with the plate-holder carrier having brackets e, of the plate-holders having projections 11 to engage said brackets, substantially as described.

4. In a camera, a snap-shutter pivoted at its 1.

lower end, combined with a slide, a toggle-lever connecting the slide and shutter, a spring acting upon said shutter to hold it shut, and a catch engaging the slide to hold the shutter open, substantially as described.

In testimony whereof I have hereunto set my hand this 23d day of April, A. D. 1886.

JOSEPH KREMENTZ.

it nesscs:

hainnnon JonNsoN, H. 0. 000m.

following corrections, viz:

It is hereby certified that in Letters Patent N o. 36 the application of Joseph Krementz, of New Alban Photographic Cameras, errors appear in the pri In line 14, page 2, closes and insert the words by one passage, from extreme to cartreme and in line 16, same page, strike out the words of the tog Letters Patent should be read with these corrections ther strike out the comma after the 2,978, granted May 17, 1887, y, Indiana, for an improvement in nted specification requiring the upon word 0f the toggle-lever, gle-lever, and that the said sin that the same ma conform to the record of the case in the Patent Office. 3 I

Signed, countersigned, and sealed this 24th day of May, A. D. 1887.

[SEAL] :o. L. HAWKINS,

o untersigned: 1 ctmg Secretary 0/ the late; w.

BENTON J. HALL,

Commissioner of Patents.

Images