GB608314A - Improvements in and relating to photographic enlarging apparatus - Google Patents
Improvements in and relating to photographic enlarging apparatusInfo
- Publication number
- GB608314A GB608314A GB521746A GB521746A GB608314A GB 608314 A GB608314 A GB 608314A GB 521746 A GB521746 A GB 521746A GB 521746 A GB521746 A GB 521746A GB 608314 A GB608314 A GB 608314A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bracket
- holder
- column
- lens
- lamphouse
- 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
Links
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
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/56—Mounting enlarger head on column ; Mounting reproduction camera on column
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection-Type Copiers In General (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
608,314. Photographic enlarging apparatus. GOSS, R. H., and RONDEAU, G. E. Feb. 19, 1946, No. 5217. [Class 98 (i)] An enlarger comprises a bracket slidably mounted on a vertical column mounted on a base and carrying a horizontal adjustable arm supporting a condenser unit, lamphouse, negative stage and lens holder, and a projection table mounted above the base. As shown the base 1 carries a projection table 7 and a column 6 through which passes a lead 9 from the mains to the lamp housing 10. Slidable along the column is a bracket 13 having pivoted thereon at 19 a lever 18 spring urged at 191 so that a toe 181 thereon locks the bracket on the column, release of the bracket being effected by pressing on the lever. Slidable and rotatable in a bore on the bracket is an arm 14 through which passes a spindle 20, on which are slidably and rotatably mounted a condenser unit and a negative stage, both of which may be locked in any desired position. The condenser unit includes a casing 21 for lenses 30, 29, which are separated by a spring 28, the upper end of the casing having the lower rim 31 of the lamphouse 10 projecting thereinto to engage the lens 29. The lamphouse may be secured to the casing 21 as by screws 27. The negative stage 22 includes a turntable 23 bearing the negative and has secured thereto one end of a bellows 37 which is secured to a lens holder 36. Through this holder passes a spindle having pinions 41 which co-operate with racks 35 depending from the stage 22 to effect the focusing of the lens. A rod depending from the holder 36 may have a filter holder 44 slidably mounted thereon.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB521746A GB608314A (en) | 1946-02-19 | 1946-02-19 | Improvements in and relating to photographic enlarging apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB521746A GB608314A (en) | 1946-02-19 | 1946-02-19 | Improvements in and relating to photographic enlarging apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB608314A true GB608314A (en) | 1948-09-14 |
Family
ID=9791906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB521746A Expired GB608314A (en) | 1946-02-19 | 1946-02-19 | Improvements in and relating to photographic enlarging apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB608314A (en) |
-
1946
- 1946-02-19 GB GB521746A patent/GB608314A/en not_active Expired
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