US572663A - Photographic-plate lifter - Google Patents
Photographic-plate lifter Download PDFInfo
- Publication number
- US572663A US572663A US572663DA US572663A US 572663 A US572663 A US 572663A US 572663D A US572663D A US 572663DA US 572663 A US572663 A US 572663A
- Authority
- US
- United States
- Prior art keywords
- plate
- photographic
- lifter
- plate lifter
- bent
- 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
- 239000002184 metal Substances 0.000 description 18
- 210000004247 Hand Anatomy 0.000 description 2
- 206010022114 Injury Diseases 0.000 description 2
- 210000003813 Thumb Anatomy 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010186 staining Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
- G03D13/001—Cassette breaking apparatus
Definitions
- M/T/VESSES MWENTOH W By UNITED STATES PATENT OFFICE.
- My invention relates to improvements in photographic-plate lifters operating in conneetion with photographers developing and fixing solution trays.
- the object of my improvement is to lift in the simplest manner the plate from the bottom of the photographic tray Without staining the hands and without injury to the film, as well as to create a constant ebb and flow of the chemical over the plate in course of development.
- Fig. 2 shows the same with the openings left after cutting out flaps to bind the spring.
- Fig. 3 shows the U'-shaped wire attachment.
- Fig. 4 shows the metal plate bent and the method of attaching the U-shaped wire by flaps cut in the metal plate.
- Figs. 5 and 6 show the plate-lifter complete.
- Fig. '7 shows a photographic tray with plate-lifters in place.
- Fig. 8 shows a photographic tray with a plate being raised by the plate-lifter, operated by the thumb.
- the device consists of an oblong metal plate A, cut in the shape indicated by Fig. 1, with apertures B B and O O stamped before the metal plate is bent, as shown by Fig. 2.
- This plate is bent to an angle of ninety degrees or less and attached at that angle to a U -shaped wire at DD, Fig. 3, the wire being curved at F F with spring-pressure at E E.
- the method of attaching this U-shaped wire to the bent metal plate is shown by Fig. 4:.
- the flaps II II, Fig. i are turned from the apertures 13 B to receive the wire and are held at the ends by the flaps X and Gr, which are turned from the apertures O O.
- the wire is thus clasped to the metal plate, as in Figs. 5 and 6.
- a photographic-plate lifter In a photographic-plate lifter, the combination with an oblong piece of sheet metal bent to an angle of ninety degrees or less, of the U -shaped wire attached at its base to the angle of the sheet-metal piece and having its arms bent to form spring-clasps for engaging the side of the photographic tray, substan tially as described.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Sheet Holders (AREA)
Description
(No Model.)
S. 0. SMITH. PHOTOGRAPHIO PLATE LIFTER. No. 572,663. Patented Dec. 8, 1896.
M/T/VESSES: MWENTOH W By UNITED STATES PATENT OFFICE.
SAMUEL CRAIV FORD SMITH, OF PHILADELPHIA, PENNSYLVANIA.
PHOTOGRAPHlC-PLATE LIFTER.
SPECIFICATION forming part of Letters Patent No. 572,663, dated December 8, 1896.
Application filed November 30, 1895. Serial No. 570,636. (No model.)
To all whOm, it may concern-.-
Be it known that I, SAMUEL CRAWFORD SMITH, a citizen of the United States, residing in Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and useful Photo-Plate Lifter, of which the following is-a specification.
My invention relates to improvements in photographic-plate lifters operating in conneetion with photographers developing and fixing solution trays.
The object of my improvement is to lift in the simplest manner the plate from the bottom of the photographic tray Without staining the hands and without injury to the film, as well as to create a constant ebb and flow of the chemical over the plate in course of development. I attain this object by the mech anism illustrated in the accompanying drawings, in Which Figure 1 shows the metal plate before bending. Fig. 2 shows the same with the openings left after cutting out flaps to bind the spring. Fig. 3 shows the U'-shaped wire attachment. Fig. 4 shows the metal plate bent and the method of attaching the U-shaped wire by flaps cut in the metal plate. Figs. 5 and 6 show the plate-lifter complete. Fig. '7 shows a photographic tray with plate-lifters in place. Fig. 8 shows a photographic tray with a plate being raised by the plate-lifter, operated by the thumb.
I The device consists of an oblong metal plate A, cut in the shape indicated by Fig. 1, with apertures B B and O O stamped before the metal plate is bent, as shown by Fig. 2. This plate is bent to an angle of ninety degrees or less and attached at that angle to a U -shaped wire at DD, Fig. 3, the wire being curved at F F with spring-pressure at E E. The method of attaching this U-shaped wire to the bent metal plate is shown by Fig. 4:. The flaps II II, Fig. i, are turned from the apertures 13 B to receive the wire and are held at the ends by the flaps X and Gr, which are turned from the apertures O O. The wire is thus clasped to the metal plate, as in Figs. 5 and 6.
Having fully described my invention, what I claim, and desire to secure by Letters Patent, is
In a photographic-plate lifter, the combination with an oblong piece of sheet metal bent to an angle of ninety degrees or less, of the U -shaped wire attached at its base to the angle of the sheet-metal piece and having its arms bent to form spring-clasps for engaging the side of the photographic tray, substan tially as described.
SAMUEL CRAIVFORD SMITH.
IVitnesses:
GEORGE IV. CLEMENT, R. STUART SMITH.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US572663A true US572663A (en) | 1896-12-08 |
Family
ID=2641360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US572663D Expired - Lifetime US572663A (en) | Photographic-plate lifter |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US572663A (en) |
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0
- US US572663D patent/US572663A/en not_active Expired - Lifetime
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