Improvement in Levers for Presses. Page: 2 of 2
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UNITED STATES PATENT OFFICE.
JOSEPH P. GATES, OF RED RIVER COUNTY, TEXAS.
IMPROVEMENT IN LEVERS FOR PRESSES.
Specification forming part of Letters Patent No. 136,431, dated March 4, 1873.
To all whom it may concern: in practical use being adjustable to that of the
Be it known that I, JOSEPH P. GATES, of shutters, whether their position be as repre-
the county of Red River, in the State of Texas, sented in the figures or otherwise; and that
have invented new and useful Improvements like letters refer to like parts in the figures.
on Locks or Fastenings applicable to Shutters The lock being placed in position as in Fig.
to Press-Boxes; and I do hereby declare the 1, the bearing-points on the pivot-pin A of
following to be an exact description thereof, sections I and G, being below the line of press-
reference being had to the accompanying ure and resistance between the shutter D and
drawing and to the letters of reference making stud F, serve to hold the lock as represented
a part of this specification, in which- in Fig. 1.
Figure 1 represents a side view of the lock, To unfasten the shutter, bend the joint B by
showing by the dotted lines J the lineal ex- raising the pivot-pin A, by the handle L, above
tension of the mortise H, Figs. 2 and 3, and the line of pressure and resistance, holding to
tenon H.', Fig. 4; also the position of the lock, the handle and abating the force of the shut-
the end C against the shutters D, and the end ter, and the pressure will further bend the
E against the stud F. joint B and release the shutter, as in Figs. 2
Fig. 2 is an outline side view of the lock, bent and 5.
at the joint B, showing its position in relation The superiority that I claim for my inven-
to the shutter D and stud F when the shutter tion consists in its being convenient, simple,
is unfastened--the dotted red lines Q and R and efficient, and, when applied to the shut-
showing, respectively, how far the shoulder to ters of a press-box in which cotton or any
the joint B of section I may be dispensed other elastic thing is pressed, enables the oper-
with, and to what line the mortise H, in sec- ator to abate with ease the violent shock at-
tion G, may be correspondingly modified to tending the release of the shutter; and when
add to the releasing capacity of the lock. two locks, one near each edge of the two op-
Fig. 3 is an upper or inside view of section posited edges of the same shutter, are used, en-
G, showing the mortise H and the pivot-pin ables him, with a hand on the handles of each
A; by which the sections G and I are pivoted lock, to release each edge simultaneously,
together, as in Fig. 1. avoiding the injurious wrenching of the shut-
Fig. 4 represents an under or inside view of ter sequent to non-coincident releasing.
section I, showing the tenon H', the flange I', What I claim as my invention, and desire
and the handle L of the lever, to secure by Letters Patent, is-
Fig. 5 represents a part of an end shutter, 1. In combination with the door of a press-
M, and an edge view of a side shutter, D, each box, the jointed locking device, constructed as
hinged in the usual way, as at O and P, re- described, for the purpose specified.
spectively; also a part of the platen N of a 2. In a locking device, the combination of
press-box, the end shutter M and platen N lever I with its stop-flange and curved head
being each represented as having a part E, and the lever G with curved head C, when
broken off. pivoted together at B, said parts being ar-
Description of Operation. ranged with relation to each other as and for
the purpose Set forth.
I premise that, in describing my invention JOSEPI P. GATES.
and its operation, the words upper, under,
below, raising, and above, have relation to Witnesses:
the positions in which the lock is repre- JAMES H. DMARTIN,
sented in the figures-the position of the lock J. A. . STILES.
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Gates, Joseph P. Improvement in Levers for Presses., patent, March 3, 1873; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth166834/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.