Year: 1887

page_text: I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex, 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:
This invention relates to improvements in the type-writing machine described in
the Specification of former Letters Patent dated March 5th 1887, No. 3417.
The general operation of the machine is similar to that of the machine described in
the said Specification, the improvements being matters more or less of detail described
below.
In the accompanying drawings in which similar letters of reference indicate like
parts,
Figure 1 is a plan view of the improved type-writing machine, certain portions
being represented as broken out, the better to exhit the invention.
Figure 2 is an enlarged perspective view showing the feed mechanism in detail.
Figure 3 is a plan showing in detail the connection which actuates the carriage.
Figure 4 is a vertical section showing the actuating spring and its immediate
connections.
Figure 5 is a horizontal section on line za Figure 4.
Figures 6 and 7 are enlarged views of certain parts immediately connected with the
actuating spring shown in Figure 4, and below described.
A is the table or cover hinged at A' to the base B, and C is the hinged frame
constructed substantially as usual. The index plate D however is in this improvement
not a part of the frame but is supported by posts D' D' secured to the table or cover
(see Figures 1 and 2) so that said index-plate is stationary. Thus the confusion and
blurring of the letters which appeared in the movable index-plate are avoided.
Screws D extend down from the index-plate and limit the upward movement of
the frame C.
The feed rack E is secured to the carriage E near its rear edge as shown, and is
engaged by the semicircular plates or pawls a, b, which, by means of their shape, will
remain in engagement when the cover A is lifted. The pawl a is rigidly secured to
the tube or sleeve F loose on the rod d (on which the cover A and frame C
turn) and said sleeve is provided with the hub F' having the projection F" to
which is pivotally secured the horizontal rod G having with the thumb-piece G¹.
The rod G is pivotally attached at G" to the lower arm of the elbow-lever H

page_text: pivotted at H to the standard H¹ secured to the upper side of the cover A.
The upper arm of this elbow-lever is held against the under side of the frame C
by means of the spring H" secured by a rivet to said elbow-lever and having its
free end held in the hook H projecting from said standard H³.
The pawl is rigidly secured to the tube or sleeve I loose on the rod d, and said
sleeve is provided with a hub I' having the projection I" to which is pivotally
secured the lever I whose opposite end is pivotted to the horizontal lever J.
e is a supplemental sleeve loose upon the rod d and provided with one or more
notches of shape to fit over the slotted adjustable stop e secured to the rod d
by a screw. By means of the stop, and the notched sleeve a space is left
between the sleeve e and the sleeve I equal to the distance desired between two
letters. This space can be varied by having notches e of varying depths.
A spring secured to the rod I and with its free end caught by the pin on
the lever J tends to force the sleeve I toward the sleeve e. The lever J is
pivotted at J to the cover A, and one end engages the rod G by means of the
notch g on the under side of the latter while the other end is pivotally secured
to the horizontal rod K pivotally secured to the lower end of the elbow-lever K'
pivotted to the standard K, one of the elbows of said elbow-lever forming the
thumb-piece K".
L is a post secured to the rear edge of the base B near its centre. The upper
end of this post is provided with radial grooves L' see Figure 7; and a disc N,
see Figures 4, 5 and 6, having the projection N¹ on its under side, is screwed
to the top of said post, said projection lying in one of the radial grooves L'.
The disc is further provided with the hook N. P is a sleeve upon the post L
and integral with said sleeve is the lever P¹ which extends forward horizontally
between the base B and the carriage M (constructed substantially as usual). The free
end of the lever P' (see Figure 3) is pivotally secured to the lever R which is also
pivotally secured at its opposite end at R' to the carriage M. A spring S is coiled
around the sleeve P one end being secured to the hook N on the disc N and the
other end being secured to the lever P¹. The tension of this spring is regulated by
the projection N¹ on the under side of the disc N being moved into one or another of
the radial grooves L' on the top of the post L. The whole, that is, the post, disc,
sleeve and spring are covered and protected by a cap T. The spring is so coiled that
its tendency is to move the carriage toward the left às the operator faces the machine.
The operation is as follows:-
When the frame C is in its normal position, that is, raised, the pawl a is out
of engagement and the pawl bin engagement with the feed rack E as shown in
Figure 2. When the frame is pressed down by the type lever for the purpose of
printing, said frame moves down the upper portion of the elbow-lever H thus moving
rearward the rod G and imparting sufficient rotation to the sleeve F to bring the
pawl a into engagement with the feed rack. At the same time, the lever J is moved
on its pivot J by the notch y on the rod G thus drawing its opposite end forward
and by means of the rod I imparting sufficient rotation to the sleeve I to bring the
pawl 6 out of engagement with the feed-rack. As soon as this pawl is released the
spring by means of the rod I" forces the sleeve I along the rod D until it strikes
the supplemental sleeve e. When the frame C is released and allowed to rise the
spring H retracts the rod G and draws the pawl a out of engagement and the coiled
spring S by means of the levers P and R moves the carriage M to the left and with
it the feed-rack E' one tooth and the pawl 6 which is then in engagement with it as
far as the sleeve I will go. This distance is of course the extent of the longitudinal
play of said sleeve, which is regulated by the slotted stop e" and the depth of the
notch e. Pressure upon the handle G directly operates the rod G and allows the
feed-rack to move forward one tooth in order to provide a space between two words.
Pressure upon the handle K" draws forward the rod K and by means of the levers J
and and sleeve I removes the pawl b from engagement with the feed-rack
independently of the pawl a which is normally out of engagement, and allows the
carriage to be moved to the right for a new line.

page_text: The lever J is held with its left end against the notch 7 and its right end normally
pressing the lever I¹¹ so as to hold the pawl bin engagement by means of the
spring U secured to said lever and with its rear end pressing against the pin U¹ in
the cover A (see Figure 2).
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, as communicated to be by my
foreign correspondent, I declare that what I claim is :-
First. In a type writing machine, the combination with a pivotted type-frame and
pivotted type lever, of a stationary index-plate substantially as, and for the purpose,
set forth.
Second. In a type-writing machine, the combination with the carriage provided with
the feedrack E of the disc shaped pawls a and b adapted to engage said feed-rack by
turning on suitable axles, substantially as, and for the purpose, described.
Third. In a type-writing machine, the combination of the carriage provided with the
feed rack E'; the rod or axle d and sleeves FI provided respectively with the
pawls a, b, and adapted to be rotated alternately, substantially as, and for the purpose,
set forth.
Fourth. In a type-writing machine, the combination of the carriage provided with
the feed rack E, the rod or axle d, sleeves F I provided respectively with the
pawls a, b, and adapted to be rotated alternately, the supplemental sleeve e placed on
the said rod at a suitable distance to allow of a slight longitudinal play in the sleeve 1,
and a suitable stop, substantially as, and for the purpose, described.
Fifth. In a type-writing machine the combination of the carriage provided with the
feed-rack E, the rod or axle d, sleeves FI provided respectively with the pawls a, b,
and adapted to be rotated alternately, the supplemental sleeve e placed on the said
rod at a suitable distance to allow of a slight longitudinal play in the sleeve I, said
supplemental sleeve being provided with one or more notches e', and the adjustable
stop e, substantially as, and for the purpose, set forth.
Sixth. In a type-writing machine, the combination of the rod d, sleeve F, pawl a,
hub F¹, rod G, elbow-lever H, standard H', spring H", and type-frame (),
substantially as, and for the purpose, described.
Seventh. In a type-writing machine, the combination of the rod d, sleeve I, hub I',
pawl b, lever, spring f, lever J, rod K, lever K, K, and standard K
substantially as, and for the purpose, set forth.
Eighth. In a type-writing machine, the combination of the rod d, sleeves F, I,
hubs FI¹, pawls a, b, lever I spring f, lever J, spring U, rod G provided with the
catch g, elbow-lever H, spring H", standard H³, and type-frame C, substantially as
and for the purpose described.
Ninth. In a type-writing machine, the combination of the base B, post L provided
with the radial grooves L', disc N provided with the hook N and projection N¹,
sleeve P provided with the lever P¹, spring S having its opposite ends secured to said
lever and said disc, lever R, and carriage M, substantially as and for the purpose
set forth.
Tenth. In a type-writing machine, the combination of the base B, post L, disc N
rigidly secured to said post, spring S, levers P¹, R, carriage M, feed rack E', and
pawls a, b, substantially as and for the purpose described.
Dated this bith day of June 1987
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.