US591347A - William v - Google Patents
William v Download PDFInfo
- Publication number
- US591347A US591347A US591347DA US591347A US 591347 A US591347 A US 591347A US 591347D A US591347D A US 591347DA US 591347 A US591347 A US 591347A
- Authority
- US
- United States
- Prior art keywords
- slide
- bulb
- wing
- exposure
- shutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000000188 Diaphragm Anatomy 0.000 description 8
- 239000002184 metal Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 229920002160 Celluloid Polymers 0.000 description 2
- 241000490025 Schefflera digitata Species 0.000 description 2
- 210000003813 Thumb Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 235000015250 liver sausages Nutrition 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/08—Shutters
Definitions
- the invention relates to the kind of shutter known as the pneumatic; and it consists in the construction and arrangement of the parts and their conjoint operation as hereinafter set forth.
- Figure 1 illustrates a front elevation of the invention.
- Fig. 2 illustrates an endwise elevation; and
- Figs. it and 5 illustrate, respectively, separate diaphragms which when in use are detachably attached tothe shutter wing or slide.
- A is the frame or casingof the shutter.
- B is a slideway formed on the board or platen of the casing.
- G is the exposure-aperture in the platen.
- D is the shutter wing or slide. It may be made of metal, rubber, celluloid, wood, or
- E is the exposure-aperture in the'slide.
- F is the pneumatieengine.
- G is the bulb thereof, provided with the usual rubber tube H.
- H is a hole in the bulb; I is the piston of the engine, to which the wing or slide D is attached by a connecting device J.
- K is a stop pivoted, as seen at L, to the easing and adapted to be swung into the path of M is a bifurcated plate attached to the face of the slide at its rear part, having the bifurcated points NN free. They are of spring metal.
- O O O are diaphragrns, each having a hole P in it. They differ in size.
- the stop K is swung upwardly and held by the friction in its pivotal joint in a horizontal position.
- the bulb is then squeezed and the slide, under the action of the piston of theengine, is shot through the slideway B until the opening E in it coincides with the exposure-aperture in the platen of the shutter, and at this point the end of the piston comes in contact with the stop K, and the pressure on the bulb being continued the slide will be held in its then position for the desired time.
- the stop is swung downwardly out of the way of the piston, as shown in Fig. 2.
- The'bulb' is then squeezed and the slide passes quickly entirely across the exposure-aperture in the platen, and during the time that the exposure-apertures in the platen and in the slide coincide the picture is taken.
- the operator removes his thumb or the pressure of the ball of his I hand from the hole H in the bulb as soon as the slide has completed its'transit, so that there shall be no suction to retract the slide.
- the bulb may be again collapsed, and then the hole II in it being covered the suction on the expansion of the bulb will withdraw the slide to its normal position.”
- I provide small fiat pieces of rubber, metal, or other suitable material, (seen at'O O 0.) They are each perforated, as
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Diaphragms For Cameras (AREA)
Description
(No Model.)
W. V. ESMOND, PHOTOGRAPHIG SHUTTER.
No. 591,343]. Patented Oct. 5, 1897.
UNITED STATES WILLIAM V. ESMOND, OF NEW YORK, N. Y., ASSIGNOR TO PATENT OFFICE.
THE E. A; II. T.
ANTHONY & COMPANY, OF SAME PLACE.
SPECIFICATION forming part of Letters Patent No. 591,347, dated October 5, 1897.
Application filed May 11,1897- Serlal No. 686,011. (No model.)
The invention relates to the kind of shutter known as the pneumatic; and it consists in the construction and arrangement of the parts and their conjoint operation as hereinafter set forth.
In the drawings, Figure 1 illustrates a front elevation of the invention. Fig. 2 illustrates an endwise elevation; and Figs. it and 5 illustrate, respectively, separate diaphragms which when in use are detachably attached tothe shutter wing or slide.
A is the frame or casingof the shutter.
B is a slideway formed on the board or platen of the casing. i
G is the exposure-aperture in the platen.
D is the shutter wing or slide. It may be made of metal, rubber, celluloid, wood, or
v other suitable material.
v the piston.
E is the exposure-aperture in the'slide.
F is the pneumatieengine.
G is the bulb thereof, provided with the usual rubber tube H.
H is a hole in the bulb; I is the piston of the engine, to which the wing or slide D is attached by a connecting device J.
K is a stop pivoted, as seen at L, to the easing and adapted to be swung into the path of M is a bifurcated plate attached to the face of the slide at its rear part, having the bifurcated points NN free. They are of spring metal.
O O O are diaphragrns, each having a hole P in it. They differ in size.
The operation is as follows: For a time exposure the stop K is swung upwardly and held by the friction in its pivotal joint in a horizontal position. The bulb is then squeezed and the slide, under the action of the piston of theengine, is shot through the slideway B until the opening E in it coincides with the exposure-aperture in the platen of the shutter, and at this point the end of the piston comes in contact with the stop K, and the pressure on the bulb being continued the slide will be held in its then position for the desired time. Now upon allowing the bulb to expand the suction will cause the piston to move in the reverse direction and the slide will be returned to its normal position. To make an instantaneous exposure, the stop is swung downwardly out of the way of the piston, as shown in Fig. 2. The'bulb' is then squeezed and the slide passes quickly entirely across the exposure-aperture in the platen, and during the time that the exposure-apertures in the platen and in the slide coincide the picture is taken. The operator removes his thumb or the pressure of the ball of his I hand from the hole H in the bulb as soon as the slide has completed its'transit, so that there shall be no suction to retract the slide. When desired, however, the bulb may be again collapsed, and then the hole II in it being covered the suction on the expansion of the bulb will withdraw the slide to its normal position."
In order to regulate the brilliancy and quantity of the light entering the camera at the time of exposure, I provide small fiat pieces of rubber, metal, or other suitable material, (seen at'O O 0.) They are each perforated, as
shown, with a hole P of didering size and are adapted to be pressed under the free springact-in g ends N N of the clamp-plate M,and tlius held to the face of the wing or slideby the resiliency of the ends N N in such manner that the center of the holes in them shall coincide with the center of the exposure-aperture in the slide, and yet capable of easy removal therefrom when desired. I prefer to form a shallow groove a in the rear portion of these diaphragms, in which small projecting points I) b on the respective ends N N of the clamp plate M engage, the more securely to hold the 'diaphragms in position.
. 9 I do not limit myself to the details of conspring-plate attached to the wing, and a flat, gaging devices 011 the s1' 1ing- )1ut0 and dim,- perfomted diaphmgm adapted to be slipned phragm to aid in holding the latter to the under the spring-plum and held by its rcsilshutter-wing, [or the purposes sci; forLh.
iency against the face of the wing, for the Signed at New -fol-15in the ceunby of New 5 purposes set forth. York mu Pate of aw York, this 170th day 15 2. In. a, photographic shutter, a movable of May, A. 1891', wing provided with an exposurcflperture, a VYUJJAM V. '"SMUNI'L spring-plat!) attached to the wing, a flat, per- 'Vfitnosses: formed diaphragm adapted. to be slipped m1 F. S1 MISON,
w Ger the spring-plate, and interlonkhmmon- 1 A. I I%1'0 -:RI:-;ON.
Publications (1)
Publication Number | Publication Date |
---|---|
US591347A true US591347A (en) | 1897-10-05 |
Family
ID=2660002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US591347D Expired - Lifetime US591347A (en) | William v |
Country Status (1)
Country | Link |
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US (1) | US591347A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4344687A (en) * | 1981-02-18 | 1982-08-17 | Eastman Kodak Company | Diaphragm and shutter mechanism |
-
0
- US US591347D patent/US591347A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4344687A (en) * | 1981-02-18 | 1982-08-17 | Eastman Kodak Company | Diaphragm and shutter mechanism |
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