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457,771
thereof. Now pull the handle n forward, as
before, and the jaw d is raised clear of the
papers, as shown in Figs. 4 and 5, the press-
er-foot being prevented from lowering by the
5 support p.
It is apparent that slight changes may be
resorted to by any skilled mechanic without
departing from the scope and spirit of my in-
vention.
io Having thus described my invention, what
I claim as new, and desire to secure by Let-
ters Patent, is-
1. In a paper-file, the combination of a base,
a clamp provided with a jaw, a presser-foot
15 to the rear of the jaw, and a crank-shaft
journaled in a bearing in the presser-foot and
provided with a handle, the crank portion of
the shaft being arranged under the clamp,
substantially as and for the purpose set forth.
20 2. In a paper-file, the combination of a base,
a clamp provided with a jaw and having side
arms connected to the base by springs, a press-
er-foot to the rear of the jaw, and means for
operating the clamp and presser-foot, sub-
25 stantially as and for the purpose set forth.
3. In a paper-file, the combination of a base,
a clamp havinga jawand springs for depress-
ing it, a presser-foot to the rear of the jaw,
and a crank-shaft provided with a handle for
30 turning the shaft to operate the clamp and
presser-foot, substantially as and for the pur-
pose set forth.
4. In a paper-file, the combination, with a
base and a U-shaped clamp comprising a jaw
35 or front bar, side arms, springs, and ends se-
curing the clamp to the base, of a presser-
foot to the rear of the jaw of the clamp, and
means for operating the clamp and presser-
foot, substantially as and for the purpose set
40 forth.
5. In a paper-file, the combination, with a
base and a clamp provided with a jaw, of a
substantially Z-shaped presser-foot provided
with a bearingin its upperbend, and a crank-shaft journaled in said bearing, substantially 45
as set forth.
6. In a paper-file, the combination, with a
base and a clamp having a jaw and an arm,
of a presser-foot having an arm connected to
the clamp-arm by a spring, and means for 50
operating the clamp and presser-foot, sub-
stantially as and for the purpose set forth.
7. In a paper-file, the combination, with a
base and a clamp having a jaw and an arm
provided with a recess, of a presser-foot hav- 55
ing an arm provided with a lateral extension
seated in said recess, a spring-hinge connect-
ing the arms, and means for operating the
clamp and presser-foot, substantially as and
for the purpose set forth. 6o
S. In a paper-file, the combination, with a
base and a clamp having a jaw and an arm,
of a presser-foot having an arm connected to
the clamp-arm by a spring, and a crank-shaft
journaled in the presser-foot and having its 65
crank under the crank-arm, substantially as
and for the purpose set forth.
9. In a paper-file, the combination, with a
base and a clamp provided with a jaw, of a
presser-foot, an operating device supported 70
thereby and adapted to raise the clamp, and
a movable support or flap under the presser-
foot, substantially as and for the purpose set
forth.
10. In a paper-file, the combination, with a 75
base and a clamp provided with a jaw, of a
presser-foot provided with a bearing, a crank-
shaft journaled in the bearing with its
cranked portion under the clamp, and a
hinged support or flap under the presser-foot, 80o
substantially as and for the purpose set forth.
In testimony whereof I affix my signature in
presence of two witnesses.
JOIIN B. CLOPTON.
Witnesses:
ToM W. CAIN,
EARL SUMMERS.
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Clopton, John B. Paper-File., patent, August 18, 1891; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth172762/m1/3/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.