Improvements in and relating to Printing Carriages of Typewriters,
Year: 1899

page_text: Date of Application, 8th Sept., 1899
Complete Specification Left, 7th June, 1900-Accepted, 28th July, 1900
PROVISIONAL SPECIFICATION.
Improvements in and relating to Printing Carriages of Typewriters,
We, HENRY STANBRIDGE, Engineer, and ALFRED AKERS, Gentleman both of
Cadby Hall Works, West Kensington, London, W., do hereby declare the nature
of this invention to be as follows: -
This invention has reference to improvements in the paper feed of printing
carriages and has for object the arranging of feed mechanism in such a manner
that the platen or cylinder carrying the paper shall be "free" to be moved and
set to any desired point, from which the mechanism will automatically take up
the feed. In existing ratchet devices it is only possible to set the paper tooth
by tooth.
In carrying out this invention an inwardly recessed button or disc wheel is
mounted and fixed on one of the projecting ends of the axis of the platen or
cylinder.
A friction clutch to engage in this recess is attached to a cylindrical piece
sliding a little on the projecting axis. On this cylindrical piece, cam grooves
are cut of different pitches to correspond to varying degrees of feed. The said
cylindrical piece is supported by a square piece carrying a spring pin which travels
in the said caim grooves.
Centrally with the before mentioned parts, an upright pivoted lever is fixed,
which has pins or trunnions which engage in slots on either side of the square
piece. On moving the said lever in a line with the axis of the printing platen
the square piece is carried forward in its turn, moving a little the cylindrical piece
and throwing the clutch into gear with the platen. The further movement of
the lever and square piece by acting on the cam grooves, causes the printing
platen to revolve a predetermined distance. A suitable spring returns the lever,
and the parts are carried back to their normal position. The clutch being just
out of gear, enabling the printing platen to be revolved and set to any desired
point.
Detal
Improvements in and relating to Printing Carriages of Typewriters.
We, HENRY STANBRIDGE, Engineer, and ALFRED AKERS, Gentleman both of
Cadby Hall Works, West Kensington, London, W., do hereby declare the nature
[Price 8d.]

page_text: of this invention and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement:-
This invention has reference to improvements in the paper feed of printing
carriages and has for object the arranging of feed mechanism in such manner
that the platen shall be free to be moved and set to any desired point from
which the mechanism will automatically take up the feed. In existing ratchet
devices it is only possible to set the paper tooth by tooth.
In the drawings accompanying this specification.
Fig. 1 shews a side view of one end of the printing carriage and the paper
feed mechanism

page_text: the paper. When the upright lever F is in its normal position the said clutch I
is out of gear, see Fig. 2, the platen can consequently be set to any desired point
and the feed taken up from that point.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed we declare that what
we claim is :--
The combination of the lever F with a cylindrical piece D, sliding on the axis
of the platen B and said piece D having a cam slot or slots and a friction
clutch to engage in a recessed dise C, so that by the movement of the lever F
the platen B is revolved and the feed taken up from any point to which the
platen has been set.
L Jo Tune 1900
HENRY STANBRIDGE.
ALFRED AKERS.