Improvements in Type-writers.
Year: 1892

page_text: Date of Application, 9th Aug., 1892-Accepted, 17th Sept., 1892
Improvements in Type-writers.
A communication from abroad by Messrs. WYCKOFF, SEAMANS, AND BENEDICT,
of 327, Broadway, New York City, New York, United States of America,
Manufacturers.
I, JOHN CORRY FELL, of the firm of Fell and Wilding of 1, Queen Victoria
Street, in the City of London, Patent Agent, do hereby declare the nature of this
invention and in, what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
In the "Remington" machine there are provided two pairs of beveled yoke-
blocks which set astride the shift-rail that is employed to move the platen-carrier
back and forth in performing upper case work. By reason of the wear of these
blocks and of the shift-rail, the alignment of printing is in a measure destroyed.
The invention has for its main object to provide means for automatically taking up
the wear and thus preserving the alignment, and to this end consists in the features
of construction and combinations of devices hereinafter more fully described and
particularly pointed out in the appended claims.
In the accompanying drawings,
Figure 1 is a plan view of the Remington carriage with the guide and shift
rails added.
Figure 2 is a vertical section taken at the line x, x of Figure 1 with the feed-
dogs and the means for moving the shift-rail added.
Figure 3 is an enlarged vertical section taken at the line y, y of Figure 1.
Figure 4 is a vertical section taken at the line 2 of Figure 3, the shift-rail being
omitted.
In the several views the same part will be found designated by the same numeral
of reference.
The main carriage 1 is provided at its rear side with the grooved rolls 2 which
ride upon a guide-rail 3, and with a hinged frame 4 provided with a feed-rack 5
for the spacing-dogs 6. Upon said carriage is mounted to reciprocate a platen-
carrier consisting of slides 7, which ride on small rolls 8, mounted in the main
carriage-frame, said slides being connected together by a cross-bar 9. On the said
platen-carrier is mounted a platen 10, and a pressure or feed roller 11, the latter
being provided at each end with a pulley 12 in line with which and upon the rod 9
is arranged a similar pulley 13, both sets of pulleys receiving the usual paper-
carrying bands 14. Upon said rod, at suitable distances from its ends, are secured
by screws two arms or brackets 15 which extend forwardly and which are each
preferably provided with a wedge-piece 16, held in a depending position by a
retaining screw 17.
At or near the rear end of said arm is pivoted at 18 the shank 19 of a hook 20
which is preferably bifurcated as at 21 to embrace the arm 15, and which is also
provided at its upper side with a loop or bar 22 adapted to limit the drop or
downward movement of the hook 20 by contact with the upper side of the
arm 15.
The hook is formed on its under or inner side of a segment of a circle to match
the circular surface of the shift-rail 28, and the point of each hook preferably
extends slightly below the centre or axis of the shift-rail in order to avoid any
accidental slip upon the return movement of the platen-carrier.
The upper portion of the inner side over the top of the shift-rail of each hook is
provided with a longitudinal groove or cut-away 23, which enables the hook to
adjust itself properly to the shift-rail as wear occurs.
:
The shift-rail is moved to shift the platen rearwardly in upper case work by a

page_text: bell-crank lever 24, upon which it is mounted, said bell-crank being rocked in this
direction by a connecting-rod 25 attached at its lower end to a shift-key lever
(not shown) in the usual manner. A spring 26 is provided to return the parts to
their normal positions. In moving rearwardly the shift-rail works against the rear
inner sides of the hooks and thus forces the plater-carrier backwardly, and in moving
forwardly the shift-rail bears against the front inner sides of the hooks and moves
the platen-carrier forwardly or to normal position.
The hooks fit the rail snugly. In shifting, the rail rises and falls slightly,
rocking on the shaft. 27, and the hooks being pivoted are enabled to rise and fall
to accommodate the movements of the rail. The wear on the hooks takes place
more rapidly on their sides, due to the pressure of the rail thereon in moving the
carrier back and forth. For this reason the grooves or cut-aways 23 are provided
at the tops of the hooks, so that the hooks may drop and adjust themselves
automatically to the rail as their sides wear away, and thus continue a snug fit
which is desirable.
The wedge-piece or block 16 is provided principally to draw the carriage from
upper to lower case position in turning down the carrier (after inspection of the
work) in case the carriage has dropped by gravity to the upper case position. If
means be provided to lock the platen-carrier, the instant the carriage is turned up
for inspection of the work the wedge-pieces or blocks 16 will not be needed. But
their arms or supports 15 are useful in connection with the pivoted bifurcated
hooks, since they serve as guides for the hooks against lateral movements and as
they also serve in connection with the loops or cross-bars 22 as stops to the drop
or fall of said hooks.
Having now particularly described and ascertained the nature of the said iuven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
-
1. In a type writing machine, the combination with a shifting platen-carrier,
and a shift-rail, of a pivotally-mounted hook connected to rise and fall with said rail
and to adjust itself thereto as wear takes place.
2. In a type writing machine, the combination with a shifting platen-carrier, and
a shift-rail, of a hook to engage said rail provided at its upper side, interiorly, with
a groove or cut-away.
3. In a type writing machine, the combination with a shifting platen-carrier,
and a shift-rail, of a gravity hook having a notch or cut-away interiorly at its
upper side.
4. In a type writing machine, the combination with a shifting platen-carrier, and
a shift-rail, of a pivoted hook provided interiorly with a groove or cut-away, and
means for limiting its downward movement.
5. In a type writing machine, the combination with a shifting platen-carrier,
and a shift-rail, of an arm, and a bifurcated pivoted hook having a groove or cut-
away, interiorly at its upper side.
6. In a type writing machine, the combination with a shifting platen-carrier, and
a shift-rail, of an arm and a bifurcated gravity-hook having a loop and provided
interiorly, at its upper side, with a groove or cut-away.
7. In a type writing machine, the combination with a shifting platen-carrier,
and a shift-rail, of an arm carrying a wedge-piece, and a gravity-hook having at its
top interiorly, a groove or cut-away.
Dated this 9th day of August 1809
FELL & WILDING,
1, Queen Victoria Street, London, E.C., Agents for the Applicant."