US403476A - Photographic apparatus - Google Patents

Description

(No Model.) 4 Sheets-Sheet l.

H. KUHN.

PHOTOGRAPHIG APPARATUS. No. 403.476. Patented May 14, 1889.

(No Model.) 4 Sheets-Sheet 2,.

H. KUHN.

PH'OTOGRAPHIG APPARATUS.

No. 403,476. Patented May 14, 1889.A

Assaillllll 4 Sheets-Sheet 3.

(No Model.)

H. KUHN. PHOTOGRAPHIG APPARATUS.

Patented May 14, 1889.

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4 Sheets-Sheet 4.

(No Model.)

H. KUHN. PHOTOGRAPHIG APPARATUS.

fn Vn L0 H5427 Patented May 14, 1889.

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UNITED STATES PATENT OFFICE.

HENRY KUHN, OF ST. LOUIS, ASSIGNOR TO HENRY A. HYATT, OF KIRKVOOD, MISSOURI.

PHOTOGRAPHIC APPARATUS.

SPECIFICATION forming part of Letters Patent No. 403,476, dated May 14, 1889. Application filed .Tune l5, 1888. Serial No. 277,160. (No model.)

T a/ZZ whom it may con/cern.:

Be it known that I, HENRY KUHN, 0f St. Louis, Missouri, have made a new and useful Improvement in Photographic Apparatus, of which the following is a full, clear, and exact description.

The improvement relates to the production of photographie copies of photographs, pictures, or other objects capable of being photographed; and it consists, mainly, in the means by which the operator, from a position in the rear of the camera, can readily and accurately adjust the object being copied, so that it shall be properly located with refer ence to the camera, substantially as is hereinafter set forth and claimed, aided by a reference to the annexed drawings, makinpart of this spec-ication, in which- Figure lis a side elevation of the improved apparatus, and Fig. 2 a plan of the same; Fig. 3, a vertical cross-section on the line 3 3 of Fig. Fig. i, a vertical cross-section taken on the line -i l in the rear of the easel. Figs. 5 and C are sections similar to that of Fig. 5, and used to illustrate the various adjustments of the easel; Fig. 7, a detail, being' a section on the line '7 7 of Fig. 9; Fig. S, a vertical eross-section on the line 8 S of Fig. 9; Fig. 9 a section on the line 9 9 of Figs. 5 and 7; Fig. lO, a vertical longitudinal section on the line l0 lO of Fig. i; Fig. 1l, a detail sect-ion of a part of Fig. l0; Fig. l2, a rear elevation of the group of hand-wheels at the rear end of the apparatus.

The views are upon various scales, and the saine letters of reference denote the same parts.

The improved apparatus, considered generally, consists of an elongated bed-plate, a camera, an easel, and means for adjusting the easel as a whole, and also that part of it which immediately supports the obj ect being copied, the camera and the easel being upheld by the bed-plate aud being, respectively, at or toward the opposite ends thereof, the camera occupying a xed position and the easel being movable bodily toward and from the camera, and that part of the easel which is used to hold the object being copied being movable vertically, laterally, and around a center, and the means for effecting these various adjustments being operative from the rear of the camera.

A, Fig. l, represents the bed-plate, B the camera, and O the easel. The bed-plate, in turn, may be upheld in any suitable manner; but the apparatus is rendered more complete by employing a special support-such as the base D-upon which the superstructure can not only rest, but also be swung around, and thereby enable the easel to be presentedy to any light. The bed-plate in practice is a rectangular frame, substantially as shown, and its side bars, a, are, in eifect, slides for the easel to be moved upon in the direction of the length of the bed-plate.

E represents a screw extending longitudiually in the bed-plate. It is confined in the direction of its length, but adapted to be rotated in bearings in the end bars of the bedplate. The easel, by means of the nut e, Figs. lO and i, which is attached tothe easel, is

in engagement with the screw, and by rotating the screw the easel is moved along the bed-plate and toward or from the camera, according to the direction in which the screw is rota-ted. The screw is pro vided with a handle, e', Figs. l, 2, and lf3.

F and G represent two shafts extended lon` gitudinally in the bed-plate and journaled in the end bars, a', and adapted to be rotated by means of their respective handles f and g. The shaft G is used in eifecting the vertical adjustment of the object being copied, and the shaft F the lateral adjustment of the object. flhe shaft F is provided with the pinion f', Fig. 2, and the shaft G with the pinion g. The pinionj" engages with a toothed arm, f2, and the pinion g engages with a toothed arm, g2, Figs. 3, 4, 5, and (5. The arms f2 g2 are pivoted side by side upon the screw E. The arm g2 is extended upward at g3, and the two parts g2 gS form, in eifect, a lever of the bell-crank type, which is journaled upon the screw E for abearing. As the lever, by means of the geared connection with the shaft G, is turned upon its bearing, its upper armnamely, the extension gS-is moved to the right or left, according to the direction in which the shaft G is rotated. The movement IOO of the armv g3 is indicated by the full and broken lines in Fig. 4, and by means of it the object being copied is adjusted laterally. The most convenient mode of carrying out lthis part of the improvement is by slotting the arm g3, as shown at g4, and passing it over a thumb-nut, H, Figs. 4 and l0, which in turn is applied to a pin, h, that is held in an upright bar, I. This last-named part I is held and adapted to be slipped laterally upon the horizontal bars j j of a frame, J, Figs. 4, 5, 6, and lO. The pin 71, extends forward through the bar I, and at its forward end, h', it is made to engage with and' sustain the holder K, Figs. 1, 2, 3, and l0, which supports the picture L, Fig. 3, being copied.

The operation of this part of the construction is as follows: l/Vhen it is desired to adjust the picture, say, to the left as viewed in Fig. 3, the operator rotates the shaft G to throw the lever-arm g3 in that direction. The arm carries the pin 7i and holder K with it, and the upright bar I slides upon the bars j j, and the parts assume the position indicated by the broken lines in Fig. 4, and the picture L is thereby placed laterally to the left, as desired. To adjust the picture to the right, the shaft G is rotated in the opposite direction, which causes the arm g3 and holder K to beshifted to the right. The forward end of the thumb-nut H abuts against the rear face of the bar I. A shoulder upon the pin h comes against the front face of the bar I, and the pin end h is preferably journaled in the hglder K, all substantially as shown in Fig. l

The vertical adjustment of the holder K and picture is eected as follows: M, Figs. 3, 4, 5, 6,7, and 9, represents a bar jointed at its lower end, m, to the arm f2 and at or toward its upper end to the lower horizontal bar, j of the frame J. Suppose it is desired to depress the holder from its position of Fig. 5. The shaft F is rotated to cause the arm f2 to rotate in the direction indicated by the arrow f4, Fig. 5. This movement causes the arm f2 and bar M to be drawn downward, as indicated by the broken lines in Fig. 5, and the frame J, being jointed to the bar M, is drawn downward with it. The frame J can be moved vertically upon the upright guides f j2 upon the easel C, and the position of the arm f2 and bar M determines the levelof the frame J. The frame J, by means of the pin h, carries the holder K with it as the frame is thus adjusted vertically upon the guidesj2 3'2, and the slot g4 in the arm g3 provides for the upward and downward movement of the parts H h. The guides ,7'2 j? are preferably rods passing through the horizontal arms jjs of the frame J The radial adjustment of the picture and picture-holder is eected as follows:

N, Figs. 3, 4, 5, and 6, represents another bar leading from the arm f2. At its lower end it is' jointed to the arm f2, and at its upper end to the holder K at 7c. The arm N is slotted longitudinally at yn. The arm M is slotted longitudinally at m. Suppose it is desired to turn the picture to depress, say, its right corner, looking in the direction of Figs. 3 and 6. The thumb-screw O, which is used to connect the bar N with the holder K, is tightened, and the thumb-screw P, which is used to connect the bar M with the frame J, is loosened, and the shaft F is rotated to cause the arm f2 to be turned in the direction of Athe arrow f4, Fig. 5. The eifect of the movement is the turning of the holder on its bearing in the frame J. When it is desired to turn the picturethe other way, the arm f2 is turned the other way and the right-hand corner is raised. When radial adjustment is not required, the connection between the holder K and the bar N is loosened.

The picture is held in the holder K in any suitable manner. The screw E and the shafts F G can all be operated by means of the handles e f g in the front of the camera. This enables the adjustments to be expeditiously performed, as the operator while viewing the picture through the camera can effect the adjustments. When it is desired to shift the easel a long distance upon the screw E, the nut e can be disengaged from thescrew,leav ing the easel free to be moved along the bedplate. To this end the nut e, Fig. 4, is made in halves e e', attached to the arms e2, which are pivoted at e3 and elastically held apart by the spring e4. By compressing the arms e2 e2 and spring e4 the parts e e are opened'apart sufficiently to clear the screw E. T0 provide for turning the frame J on the pivot at P, a construction such as shown in Figs. 9 and 7 may be adopted. The thumb-screw P is applied to a threaded bolt which passes through the bar j', and is provided with a head, p', which is held in a block, p, having a boss, p2, upon which the bar M turns, it being a form of joint analogous to one used in some forms of compasses.

The present construction is one well adapted for copying photographs generally, and it is especially useful in the production of what is now known to the trade as stamp-portraits, in which production it becomes necessary to make nice adjustments of the photograph or picture being copied.

I claiml. The combination of the bed-plate, the camera, the screw E, the easel, the pictureholder on said easel, the shaft G, and connections between said shaft and said pictureholder for raising or` lowering the latter as said shaft is turned, substantially as set forth.

2. The combination of the bed-plate, the screw E, the nut made to open, as described, and the easel, substantially as described.

3. The combination of the bed-plate, the screw E, the shaft G, the bell-crank g2 g3, the pinion g', the handle g, the pin 72 the easel, and the frame J, substantially as described.

4. The combination of the bed-plate, the screw E, the shaft F, the pinion f', the han- IOO IIO

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dle f, the arm f2, the bar M, the frame J, and the easel, substantially as described.

5. The combination of the bed-plate, the camera, the easel, the vertically-adjustable frame J, devices for raising` and lowering` it, and the holder K, attached to said frame, sub* stantially as described.

6. The combination of the bed-plate, the screw E, the shaft F, the pinion f', the handle f, the arm f2, the easel, the frame J, the holder K, and the bars M N, substantially as described.

7. In combination with the base, bed-plate, and camera, an easel adjustable longitudinally on said bed-plate and a picture-holder on said easel adjustable laterally, substantially as set forth.

8. In combination with the base, bed-plate, and camera, an easel provided with a frame which is adjustable vertically and laterally and a picture-holder moving with said frame, substantially as set forth.

9. The combination of the bed-plate, the camera, the easel, a frame adjustable vertically and laterally upon said easel, and means, substantially as described, for operating said frame from a position in the vicinity ot' the camera, substantially as set forth.

l0. The combination of the bed-plate, the screw E, the shafts F G, the handles e fg, the pinions f g', the arms f2 g2 g3, the easel, the frame J, the holder K, and the bars M N, substantially as described.

fitness my hand this 15th of May, 1888.

HENRY KUHN.

'Vitnesses:

C. D. MOODY, A. M. EVERIsT.

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