Scovill Mfg. Co. (New York, NY)

Scovill's Safety Shutter - c. 1885-c.1890's


The American Annual of Photography and Photographic Times Almanac for 1888, ads p. 64

 


Notes: 

     Scovill's Safety Shutter and Scovill's Universal Safety Shutter were advertised on the same page, the Universal model costing over twice as much as the non-Universal.  They did not appear in 1886 catalogs, the Scovill catalog of April 1887 being their first appearance.

     Both models had a manner of braking the dropping slide, which prevents the jolt made as a drop shutter suddenly stops dropping.  The shutter is equipped with two (sometimes one) brass spring bent outward from the shutter, and a brass rod across the top of the shutter.  After the slide has cleared the exposure area, the springs rub on the rod, braking the motion.  The further the drop slide proceeds, the more the braking, until finally the hooks at the end of the springs catch on the rod.

     The Universal Safety Shutter, differs from the Safety Shutter  had a unique way of adjusting the length of the exposure by moving one of the wooden panels, securing it by means of the perforated brass piece.

     Starting about 1888, they were equipped with a pneumatic release (brass cylinder).

 

References:
How to Make Photographs and Descriptive Price List, The Scovill Co. (New York, NY), distributed by C.H. Codman & Co. (Boston, MA), April 1887, p. 90
The American Annual of Photography and Photographic Times Almanac for 1888, C.W. Canfield, ed.; Scovill Mfg. Co. (New York, NY), copyright 1887, ads p. 64
How to Make Photographs and Descriptive Price List, Scovill Mfg. Co. (New York, NY), undated but about January 1888, p. 104
How to Make Photographs and Descriptive Price List, Scovill Mfg. Co., distributed by C.H. Codman & Co. (Boston, MA), September 1888, p. 57
How to Make Photographs and Descriptive Price List, The Scovill & Adams Co. (New York, NY), January 1889, p. 55


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