US55590A - Improvement in photographic baths - Google Patents
Improvement in photographic baths Download PDFInfo
- Publication number
- US55590A US55590A US55590DA US55590A US 55590 A US55590 A US 55590A US 55590D A US55590D A US 55590DA US 55590 A US55590 A US 55590A
- Authority
- US
- United States
- Prior art keywords
- improvement
- vessel
- bath
- baths
- photographic baths
- 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
- 239000007788 liquid Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 206010022114 Injury Diseases 0.000 description 2
- 241000220010 Rhode Species 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000003467 diminishing Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000630 rising Effects 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
- G03D13/02—Containers; Holding-devices
- G03D13/08—Devices for holding exposed material; Devices for supporting exposed material
- G03D13/12—Frames
- G03D13/125—Frames for several filmstrips or plates
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
UNITED STATES PATENT OEEIcE.
ROBERT E. SISSON, OF WIOKFORD, ASSIGNOR TO OYRUS H. MOORE AND ASA SISSON, OF NORTH KINGSTON, RHODE ISLAND.
IMPROVEMENT IN PHOTOGRAPHlG BATHS.
Specification forming part of Letters Patent- No. 55,590, dated June l2, 1866.
To all whom fit may concern:
Be it known that I, ROBERT E. SissoN, of Iickford, in the county of Washington and State of Rhode Island, have invented a new and useful Improvement in Photographers Baths; and I do hereby declare that thefollowing specification, taken in connection with the drawings making a part of the same, is a full, clear, and exact description thereof.
Figure l is a side elevation of one form of bath. Fig. 2 is a vertical section. Fig. 3 is a top view of the movable bottom. Fig. a is a section on line w x of Fig. 3. Fig. 5 is a side elevation ot' another form of bath. Fig. G is a section on the line y z. Fig. 7 is a top view of the same. Fig. S is a view ofthe false bottom. Fig. 9 is an end view of the same.
A photographes bath is a vessel designed to contain the chemical solution into which the photographic plate must be immersed to make it sensitive to the action of light. As soon as it is taken from the bath it is placed in the camera for the purpose oi' receiving the picture.
It is of the utmost importance that the plate should be carefully manipulated when placed into or removed from the bath, as the slightest unskillful handling will agitate the liquid sut'- ciently to cause s'mall particles of sediment to rise from the bottom and be deposited on the surface of the plate, and thus injure the effect' and expression of the picture.
These baths are of various forms and are made of different materials.
My invention is designed to be applicable to any form which may be employed, and is for the purpose of diminishing the consequences of an accidental agitation of the liquid and better protecting the plate from the source of injury above mentioned.
It consists in providing the bathing-vessel with a secondary bottom arranged to stand above any sediment which may be deposited on the principal bottom of the vessel, and so shaped as to tend to keep down such sediment if disturbed.
In the accompanying drawings, A represents the bathing-vessel. It may be of any convenient form.
B B is a movable false bottom composed of two parts, which it will be better to have inclined toward each other, as shown. The edges oi these inclined parts are separated by a short distance at a a, sufficient for the passage of the iiuid in the vessel, but the distance need not be greater than the one thirty-second part of an inch. This false bottom may be provided with a flange, b, Fig. 4, and supported by a ledge around the sides and ends of the vessel, as shown in Fig. 2,01l it may be supported by legs, as shown in Figs. S and 9.
After the chemical solution has been placed in the vessel and has been allowed to stand long enough for the sediment to be precipitated, the false bottom B B is carefully placed in its proper position, as shown in Figs. 2, 5, and G. The prepared plate is then placed upon the usual forked supporter c and dipped into the bath.
It is apparent that the supporter c will rest upon the false bottom above any sediment which may be deposited upon the principal bottom of the vessel; and in case the uid is accidentally disturbed the said false bottom will diminish the chance of specks rising and depositing themselves upon the face of the plate.
IVhat I claim as my invention, and desire to secure by Letters Patent, is-
The use of the independent false bottom B B, in combination with a photographers bath, substantially as and for the purposes described.
ROBERT E. SISSON. Idlitnesses BENJ. F. THURsToN, HENRY J. Ln VALLY.
Publications (1)
Publication Number | Publication Date |
---|---|
US55590A true US55590A (en) | 1866-06-12 |
Family
ID=2125131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US55590D Expired - Lifetime US55590A (en) | Improvement in photographic baths |
Country Status (1)
Country | Link |
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US (1) | US55590A (en) |
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0
- US US55590D patent/US55590A/en not_active Expired - Lifetime
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