THE SLAYTON SHUTTER
Samuel Slayton, San Francisco,
California circa 1900
With no advertisements or references found in camera or
photographic supplier catalogues, I've called it the Slayton Shutter based upon its inventor, and attributed its
manufacture to him pending more information. The example shown here with a
casing diameter of 5" is mounted on a Rochester Camera and Supply Company Tele-Photo Cycle Poco C Triple Extension 6-1/2
x 8-1/2 camera which was introduced in 1900:
This two-blade time and instantaneous shutter was
designed by Samuel Slayton of San
Francisco, California, Patent No.
546,198 being granted to him on September 10, 1895. Some of the shutter's
attributes identified in the patent's wording, were that its holding and
locking mechanism was positive, the tripping mechanism was delicate and that
its operation was "comparatively noiseless and without jar".
Source: United States Patent and Trademark
Office
The only references found so far, were in regards to
issuance of the patent which was noted in The
Photographic Times: An Illustrated Monthly Magazine Devoted to the Interests of
Artistic and Scientific Photography, Volume XXVII, No. 5, November, 1895,
where it was described under the "Photographic Patents" section, in
the Official Gazette of the United
States Patent Office, 1895., and in the
Annual Report of the Commissioner of Patents for the Year 1895. I've yet to find a review in any photographic
journals of the period.
At this point, little is known of Samuel Slayton who was
listed as a "photo instrument mkr" at 206 Stevenson, with a residence
at 554 46th Avenue in the Crocker-Langley
San Francisco Directory for the Year Ending August, 1912. The
San Francisco Call for June 17, 1906 contains a classified ad for
"S. Slayton, practical photographic instrument maker and repairer;
established 1890; photographic apparatus of every description made to order.
552 46th ave., bet. Pt. Lobos ave. and A st.". The 1900 U.S. Census lists
Samuel Slayton age 43, born March, 1857, at 358 Geary Street with his
occupation as "Carpenter". The 1910 U.S. Census lists Samuel Slayton
age 53, and his wife, Bertha 44, with a 554 residence number, his birthplace as
Vermont and his occupation as "Camera store". By 1920, the U.S.
Census indicates Slayton is retired. Birth and death records on Ancestry.com
indicate Slayton was born March 4, 1858 in Woodstock, Vermont to Truman and
Lucy Slayton, and died November 28, 1923 in San Francisco, California.
Among the shutter's most notable features is the tension
spring, which is similar to those found on Prosch
shutters, such as the Triplex:
Prosch Triplex Shutter
Slayton's shutter bears no maker's name, numbers or other
markings. Comparing it against his patent drawing, the linkage differs slightly
and the originally conceived coil spring has been replaced with the
Prosch-style tension spring. However,
the essence of the shutter's design and its operation are evident.
The lens, which was sectioned to mount the shutter
between the front and rear elements, bears remnants of the name "R. &
J. Beck". It's equipped with an iris aperture, adjusted via the black
knurled ring located just forward of the barrel mount. It's unknown whether the
shutter was initially built for use with factory installed front and rear elements
(and if so, whether it would have been equipped with an iris aperture or Waterhouse
stops), or whether it was intended for use as seen here, mounted within a
buyer-supplied lens as in the case of Benster's
Patent Diaphragm Shutter:
Benster's Patent
Diaphragm Shutter
Research may reveal more about Samuel Slayton, whether he
actually manufactured the shutter, and for how long. Slayton, by virtue of his
advertised occupation, most likely had the machining skills necessary to build
it. Another possibility is that he secured the patent, but without the tooling,
equipment and resources required for mass production, he engaged one of the
larger photographic companies to manufacture it. The quality of its
construction does seem indicative of this, but in an era where essentially
everything was hand-made, conceivably, it could have been built by a much
smaller shop.
With Slayton having applied for his patent on December
27, 1894, and with this example found on a camera dating to 1900-1903, the
shutter's manufacturing timeline is potentially rather broad. Certainly, an
earlier shutter could have been mounted on a later camera, and despite the
shutter being designed in late 1894, with the exception of a prototype it may
not have reached production until years later. I would speculate, that with its
Prosch-like style of construction which was on its way out by the turn of the
century (Prosch's Diaplane series being the anomaly), the Slayton would place
more towards the mid-to-late 1890's. But for now, I'll say circa 1900 until more
is known.
With little information found and this being the only
example I've seen, I can only presume that very few Slaytons were ever made. As
far as American shutters go, it can easily be considered very rare.
My
Thanks to Antony D. Manthos for identifying the Slayton Shutter's patent.
For more information on Prosch Shutters and the Benster
Patent Diaphragm Shutter, look for them under the "Shutters" section of this website.