Type-Writing Machine. Page: 2 of 3
[1], 2 p. : ill. ; 23 cm.View a full description of this patent.
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UNITED
STATES
PATENT OFFICE.
JOHN HORACE HUDSON, OF MARSHALL, TEXAS.
TYPE-WRITING MACHINE.
SPECIFICATION forming part of Letters Patent No. 521,616, dated June 19, 1894.
ApplicationfiledJanuary 31,1894, Serial No. 498,576. (No model,)To all whom it may concern:
Be it known that I, JOHN HORACE HUDSON,
of Marshall, in the county of Harrison and
State of Texas, have invented certain new
5 and useful Improvements in Variable Line-
Spacers for Type-Writers; and I do hereby
declare that the following is a full, clear, and
exact description of the invention, which will
enable others skilled in the art to which it ap-
io pertains to make and use the same, reference
being had to the accompanying drawings, and
to the letters of reference marked thereon,
which form part of this specification.
This invention relates to certain improve-
15 ments in typewriters and more particularly
to improvements in variable line spacers for
typewriters.
The object of the invention is to provide an
improved line spacer for typewriters exceed-
20 ingly simple and durable in construction, and
composed of a minimum number of parts and
whereby the operator is enabled to adjust the
spacer so that the lines of typewriting can be
located any desired distance apart, and the
25 spacer can be advantageously adjusted so as
to write upon variously ruled paper.
The invention consists in certain novel fea-
tures of construction and in combinations of
parts more fully described hereinafter and
3o particularly pointed out in the claims.
Referring to the accompanying drawings,
Figure 1 is an end view of a typewriter car-
riage provided with my invention. Fig. 2 is
a vertical sectional view through a portion of
35 the typewriter carriage and platen. Fig. 3 is
a detail under plan view of a portion of the
carriage and platen. Figs. 4 and 5, are re-
spectively, a detail side and end view of the
locking lever or cam. Fig. 6, is a detail view.
40 Referring to the drawings, a, indicates the
frame of the.carriage.
b, is the rotary platen roll suitably jour-
naled in the carriage to rotate.
c, is the ordinary spacing lever, in the pres-
45 ent instance shown mounted on the front bar
of the carriage and provided with the up-
wardly extended arm d.
e, is the rigid stop limiting the downward
movement of the spacing lever.
50 f, is the vertically adjustable stop by which
the upward swing of the spacing lever can bevaried. The stop is here shown as consist-
ing of the vertical adjusting screw extending
down through a certain portion of the frame
above the spacing lever and provided with a 55
suitable lock nut and milled head, so that the
screw can be easily turned and can be locked
in the desired position.
g, indicates a metallic head inserted in one
end of the platen, preferably the right hand 6o
end. This head has an end formed to enter
the end of the roller and has the annular
flange provided with screw-holes by means of
which the head can be secured against rota-
tion by screws passing through said flange 65
and entering the edge of the roller at its outer
end and at the exterior of the platen. This
head is provided with the tread h. This head
can also have the projecting hub to receive
the axle on which the roller turns. 70
j, indicates a vertically disposed rocking
frame or plate between its ends mounted to
rock on the same axis as the platen, prefer-
ably by being loosely mounted on the pro-
jecting hub of the said head or on the jour- 75
nal of the platen, so that the upper end of
said plate projects above the tread of the
head, and the lower _end projects below the
lower surface of the platen. The lower end
of this plate is provided with a pointer or fin- o80
ger 1, extending beneath the platen to one
side of the scale plate m. The parts being so
arranged that this pointer is located on one
end of the line on which the characters are
printed, and so that it moves the distance be- 85
tween the lines. The upper end of this plate
extends over the friction tread of said head
and is formed hollow and the cam n, is ful-
crumed therein between the same so that the
upper end of this locking lever or cam n is 90
pivotally joined to the upwardly extending
spacing lever by means of a link o, as shown.
The lower end of this locking lever or cam is
preferably rounded, the parts being so ar-
ranged that when the spacing lever is moved 95
upwardly the extended end thereof and the
link will throw the lower biting edge of the
pawl into engagement with the tread of the
platen head, and the continuing forward
movement of said link and spacing lever will roo
rock the cam and head together so that the
platen is moved around until the spacing le-
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Hudson, John Horace. Type-Writing Machine., patent, June 19, 1894; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth173750/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.