US115489A - Improvement in granulated photographs - Google Patents
Improvement in granulated photographs Download PDFInfo
- Publication number
- US115489A US115489A US115489DA US115489A US 115489 A US115489 A US 115489A US 115489D A US115489D A US 115489DA US 115489 A US115489 A US 115489A
- Authority
- US
- United States
- Prior art keywords
- granulated
- photographs
- improvement
- positive
- montreal
- 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
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 238000003854 Surface Print Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/28—Locating light-sensitive material within camera
- G03B17/30—Locating spools or other rotatable holders of coiled film
Definitions
- a granulated negative is made by copying, by ordinary photographic manipulation, the positive, above described, or by copying, by known photographic manipulation, an ordinary photographic positive combined with a granulated plate, the two in conjunction forming one object.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Description
UNITED STATES PATENT OFFICE.
WVILLIAM AUGUSTUS LEGGO, OF MONTREAL, CANADA.
Specification forming part of Letters Patent No. 115,489, dated May 30, 1871.
To all whom may concern:
Be it known that I, WILLIAM AUGUSTUS LEGGO, of the city of Montreal, in the district of Montreal and Province of Quebec, Canada, gentleman, have invented new and useful Improvements in the Art of Photography; and I hereby declare that the following is a full, clear, and exact description thereof.
By these improvements I produce a new style of photograph, in which the gradations of light and shape of the picture are shown in granulation-i. 0., in lines and dotsinstead of the usual unbroken shades of greater or lesser intensity. This style of photograph I use in the manufacture of Leggotypes from natural objects, from Inezzotints, from brush, stump, pencil, and other drawings, and prints such as not already composed of lines and dots. I further emply this style of photograph in the manufacture of transfers for zinc, stone, 850., from subjects of the above-mentioned classes.
To make a granulated positive I copy, by known photographic manipulation, an ordinary photographic negative, combined with a granulated plate of known or ordinary construction. The two being placed together act as one plate.
From a positive so made I-produce, by the art of Leggotyping, a surface-printing type,
capable of being printed from in any typeprinting press.
A granulated negative is made by copying, by ordinary photographic manipulation, the positive, above described, or by copying, by known photographic manipulation, an ordinary photographic positive combined with a granulated plate, the two in conjunction forming one object.
From a granulated negative so made I produce, by known means, an impression on paper in transfer-ink, capable of being transferred to stone, zinc, 850., and printed from in. the ordinary way.
Having thus described the nature, object, and purpose of my invention, to which I have given the name of LEGGOS granulated photograph, what I claim as my invention, and wish secured by Letters Patent, isp 1. The granulated positive, produced as described.
2. The granulated negative, produced as described.
Montreal, the 15th day of March, A. I). 1871. w
IV. A. LEGGO.
TVitnesses:
CHARLES Lneon, CHARLES G. G. SIMPSON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US115489A true US115489A (en) | 1871-05-30 |
Family
ID=2184948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US115489D Expired - Lifetime US115489A (en) | Improvement in granulated photographs |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US115489A (en) |
-
0
- US US115489D patent/US115489A/en not_active Expired - Lifetime
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