US100866A - Daniel h - Google Patents
Daniel h Download PDFInfo
- Publication number
- US100866A US100866A US100866DA US100866A US 100866 A US100866 A US 100866A US 100866D A US100866D A US 100866DA US 100866 A US100866 A US 100866A
- Authority
- US
- United States
- Prior art keywords
- plate
- holder
- bath
- daniel
- ledge
- 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
- SQGYOTSLMSWVJD-UHFFFAOYSA-N Silver nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 210000000088 Lip Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000036633 rest Effects 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
- 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
- G03D13/10—Clips
Definitions
- Photographic plates have to be immersed in a solulion of nitrate of silver in the 4course of preparation, and heretofore a double hook has been employed for the glass plate to rest upon when inserted in said bath, so as to lift the plate out of the liquid.
- My invention is made for the purpose of preventing the plate slipping in'the holder, or falling ont of the same, as inserted into or withdrawn from the nitrateof-silvel" bath, said invention consisting in a spring.
- Figure l is a vertical section of a nitrate-of-silvcr bath, with my plate-holder and a plate introduced
- Figure 2 is an elevation of the said holder, the glass being shown by dotted lines.
- the hat-h a is to he of any usual or desired character ⁇ and does not require further description.
- the plate-holder b is made with a ledge, 2, and lip or ange 3.
- the spring clip c acts to press the plate against the flange 3, as said plate rests upon the ledge 2, and therehyl the plate is clippedand held firmly for insertion into the bath, or withdrawn from it.
- the springs c are-shown as separate pieces of metal, fastened to the holder b nea-r the lower end, but said springs may be of wood or formed as part of the handle ot' the plate-holder.
- the plat-e can he very firmly grasped by this spring clip, and the risk of slipping in handling the plate is prevented.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photographic Developing Apparatuses (AREA)
Description
anni sind @sind dimite.
DANIEL H. CROSS, 0F BENNINGTON, VERMONT.
Letters Patent No. 100,866, dated Marclt15,1870.
PHOTOGRAPHIC-PLATE DIPPER.
The Schedule referred to in these Letters Patent and making puri: of lthe lame.
by declared'to he -a full and correct description thereof.
Photographic plates have to be immersed in a solulion of nitrate of silver in the 4course of preparation, and heretofore a double hook has been employed for the glass plate to rest upon when inserted in said bath, so as to lift the plate out of the liquid.
It frequently happens that the plate slips off this holder as the holder' and plate are introduced into or withdrawn from the bath. In such cases, the plate, falling to the hottom,stirs up the sediment, and sometimes the nitrate-of-silver solutionI is rendered unfit for use until filtered, in consequence of the agitation' of the liquid in removing the plate; and, in most instances, the film of collodion is more or less injured.
My invention is made for the purpose of preventing the plate slipping in'the holder, or falling ont of the same, as inserted into or withdrawn from the nitrateof-silvel" bath, said invention consisting in a spring.
therein, and
Figure l is a vertical section of a nitrate-of-silvcr bath, with my plate-holder and a plate introduced Figure 2 is an elevation of the said holder, the glass being shown by dotted lines. l
The hat-h a is to he of any usual or desired character` and does not require further description.
The plate-holder b is made with a ledge, 2, and lip or ange 3.
The spring clip c acts to press the plate against the flange 3, as said plate rests upon the ledge 2, and therehyl the plate is clippedand held firmly for insertion into the bath, or withdrawn from it.
The springs c are-shown as separate pieces of metal, fastened to the holder b nea-r the lower end, but said springs may be of wood or formed as part of the handle ot' the plate-holder.
By this construction the plat-e can he very firmly grasped by this spring clip, and the risk of slipping in handling the plate is prevented.
I claim as my invention- A plate-holder for photographic baths, iitted with the spring or springs c, when applied with the ledge 2 and ange 3 for the purposes specied.
Dated this 28th day of January, A. 13.1870.
DANIEL H. CROSS. IVitnesses:
JAMES B. MEACHAM, JAS. A. N. WILLIAMS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US100866A true US100866A (en) | 1870-03-15 |
Family
ID=2170332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US100866D Expired - Lifetime US100866A (en) | Daniel h |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US100866A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110009823A1 (en) * | 2009-07-08 | 2011-01-13 | Chong Colin A | Reservoir filling systems and methods |
-
0
- US US100866D patent/US100866A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110009823A1 (en) * | 2009-07-08 | 2011-01-13 | Chong Colin A | Reservoir filling systems and methods |
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