US694080A - Photographic camera. - Google Patents

Description

' F. H. SANDERSON..

PHOTOGRAPHIC CAMERA.

(Application filed Oct. 8, 1901.] (No Model.) 3 Sh Patented Feb; 25, I902.

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No. 694,080. Patented m. 25, I902.

r. u. SANDEBSON. PHOTOGRAPHIG CAMERA.

(Am)! t n fil d O t B 1901) 3 Sheets-Shot 2.

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No. 694,080. Patented'Feb. 25, I902.

r. H. S ANDEBSON. PHOTOGRAPH") CAMERA.

7 (Application flied Out. a, 1901. (No Model.) I v a Sheets$heet a.

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UNITE TATES ATENT FFIcE.

FREDERICK H. SANDERSON, OF CAMBRIDGE, ENGLAND.

PHOTOGRAPHIC CAMERA.

SPECIFICATION forming part of Letters Patent No. 694,080, dated February 25, 1902.

Application filed October 8,1901. Serial No. 77,945. (No model.)

To aZZ whom it may concern:

Be it known that I, FREDERICK HERBERT SANDERSON, a subject of the King of Great Britain, residing at 17 Chesterton road, Cambridge, in the county of'Oambridge, England, have invented certain new and useful Improvements in Photographic Cameras, of which the following is a specification.

My invention relates to improvements in photographic cameras, and has special reference to a former invention for which I was granted Letters Patent, January 10, 1895, No. 613, in Great Britain, and November 3, 1896, No. 570,774, in the United States of America. The object of the aforesaid invention was to provide a universal movement to the front of a camera, particulars of whichare described and fully set forth in the specifications of the before-mentioned patents.

The object of my present invention is to construct a camera-front for carrying thelens or objective, having the combined advantages of, first, a camera-front whichis rigidly fixed second, a camera-front having a vertical rise and fall; third, a camera-front having a vertical rise and fall with optional swinging movement, and, fourth, a camera-front having a universal rising, falling, swinging, and backward and forward movement as provided by my former patents referred to herein. To this end I so arrange the swinging slotted arms that they can be locked together in a vertical position and converted into fixed upright standards when required. -In these upright standards the camera-front can be fixed at the desired height, being raisedor lowered in a vertical plane.

In the accompanying drawings I have shown as much of a camera as will serve to illustrate my present invention.

Figure l is a side elevation. Fig. 2 is a front view. Figs. 3 and 4: are both side elevations showing the camera-front in different positions, and Fig. 5 is also a side elevation of the camerain a position of extreme extension.

at is the camera-front, supporting the lens in any convenient manner.

I) is the bellows-body to which the front is secured. a

c is a slide capable of moving forward or backward in guides on the base-board d.

e f are slotted arms, of which there are two pairs, one on each side of the front a, pivoted to the slide 0 at g and h. V The arm f is cranked in a backward direction, so as to bring its slot into parallelism with that of the arm e when fixedin the upright position shown .in Figs. 1 to 4 of the drawings.

1' 1} are screw-studs passing through the aforesaid slots and fixed to the frame of the front a, on either side thereof, which frame bythe aid of nuts they serve to fix in any desired position. V

The arms efare fixed in their upright position by securing them together, which can be done by means of spring-catchesjj, which drop into holes in the arms efwhen the latter are in line, as is the case when they are in the upright position. Z indicates small plates pivoted to the arms f, by means of which the catches j can be withdrawn from the holes 7c and the arms 6 f released when it is desired to swing them, say, into the position shown at Fig. 5. When the arms efare locked, the frontacan move up and down, and it can also be tippedas, for instance, to the position shown at Fig. 4. To insure, however, the front remaining in a vertical plane when raised or lowered to any position in the slotted arms e f, bolts m on may be provided, which engage with the slots of the arms efand cooperate with the studs 4. to maintain the front a in a Vertical plane as long asrthe engagement continues and the arms 6 f remain upright. The bolts on are spring-pressed outwardly, but are provided with handles a, by which they may be withdrawn and by which they may be held in the withdrawn position by engagement with the angular slots 0 in the front frame. When the bolts m are withdrawn and the arms e f are released, the freedom of the latter is controlled only by the screw-studs 'i, which support the can1era-front in the slots. It will be seen, therefore, that there may be, at the discretion of the operator, either complete freedom of movement of the parts or a partially restricted movement, as when the arms 6 f are locked together in a vertical position and the front is not bolted to the arms 6 f, or a still more restricted movement, as when the front is bolted to the arms 6 f and the arms 6 secured with the arms f in the upright position above indicated. In the latter case the camera-front must always remain parallel to the focal plane,notwithstanding the elevation or depression of the same within its range of traverse in a vertical direction or the traverse of the slide 0 in a horizontal direction.

Vhat I claim as my invention, and desire to secure by Letters Patent, is

1. The combination with a can1era front of swinging supporting-arms, connected thereto by screws and nuts and arranged to come into parallelism when in their upright position, means for fixing the said arms in parallelism and means for retaining the front in line with its supporting-arms without interfering with its rise and fall vertically, substantially as set forth.

2. The combination with a camera-front and a supporting-base therefor, of a slide fitted to said base, two pairs of slotted swinging arms one pair on each side of the front pivoted to the slide one behind the other,

studs one on each side of the front passing through the slots in both said swinging arms on the corresponding side, and means for securing said arms with the slots in an upright position, substantially as herein described.

8. The combination with a camera-front, of slotted swinging supporting-arms two on each side having their slots respectively so directslotted swinging supporting-arms two on each side having their slots respectively so directed that the slots of the two may be brought parallel with each other in an upright position, screw-studs one on each side of the front passing through the slots on both arms on the corresponding side, and a spring-catch for securing together the two arms on either side with their slots parallel with each other in an upright position, substantially as herein described.

In testimony whereof I have signed my name to this specification in the presence of \Vitncsses:

L. N. REDDIE, \VALTER J. SKERTEN.

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