Improvements in Type-writing Machines.
Year: 1889

page_text: Date of Application, 18th Mar., 1889
Complete Specification Left, 29th Aug., 1889-Accepted, 19th Oct., 1889
PROVISIONAL SPECIFICATION.
[Communicated from abroad. by HARRY EVERETT TILESTON, of Randolph,
Massachusetts, United States of America, Book-keeper.]
Improvements in Type-writing Machines.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
45 Southampton Buildings in the county of Middlesex do hereby declare the nature
of this invention to be as follows:-
This invention relates to type-writers having a rotating segment carrying the
type, arranged and combined with a perforated and movable indicator or index-
plate for the desired type of its series of. type to be brought to a given and
determined point and then an imprint of the type to be taken by forcing it into
contact with the paper sheet by the action of a printing-lever suitably constructed and
adapted therefor, all as well known.
The world type-writer, so called, is an example, of the class of type-writers referred
to and reference is hereby had thereto, as also to Letters Patent of the United States,
dated October 12, 1886 No. 350,717.
The invention particularly relates to the printing lever of the machine and it con-
sists in adapting it as hereafter described to secure a yielding and elastic contact
between it and the type in the operation of printing from the type.
The said type-writer comprises a movable index-plate, a type carrying segment pivoted
thereon, and operating-lever for moving the type carrying segment and a printing-
lever pivoted to the index-plate and all otherwise in every respect, except as to the
printing-lever and as hereafter described, substantially the same as described in
Letters Patent of the United States before referred to.
A stud or toe is provided on the printing lever by means of which the lever acts
directly on the type in position therefor, of the type-carrying segment, to secure an
imprint of said type.
This toc heretofore has been rigid on the lever, that is to say capable of no inde-
pendent movement in relation thereto but under this invention it is separate from the
lever and capable of movement thereon through a guiding aperture, under the force
of its impact upon the type and it is backed by the free end of a spring band and
preferably fastened to said spring, the spring at its other end being secured to the
lever.
This spring band acts to resist the movement stated of the impact toe of the
printing lever, upon the type and secures a yielding and elastic pressure thereof,
and thus in the operation of the printing, with the printing-lever, the tension of the
spring being of proper adjustment, a yielding and elastic impact of the printing lever
upon the type is secured, rendering the same practically uniform in it force, however
great the force may be which is applied to the printing-lever. to secure an imprint,
and also securing an operation of the printing-lever even should the guide-bars or
rails of the machine, on which the index-plate travels and by which it and its parts
are guided, be more or less out of the proper and horizontal relation with each
other, the advantages of all of which are obvious.
HASELTINE LAKE & Co.
-
HASELTINE LAKE & Co.
45, Southampton Buildings, London, Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Type-writing Machines.
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 type-writers having a rotating segment carrying the type,
arranged and combined with a perforated and movable indicator or index-plate for
the desired type of its series of type to be brought to a given and determined point
and then an imprint of the type to be taken by forcing it into contact with the paper
sheet by the action of a printing-lever suitably constructed and adapted therefor, all
as well known.
The World Type-Writer, so called, is an example of the class of type-writers
referred to and reference is hereby had thereto, as also to Letters Patent of the United
States, dated, October 12, 1886, No. 350,717.
The invention particularly relates to the printing-lever of the machine and it con-
sists in adapting it as hereafter described to secure an yielding and elastic contact
between it and the type in the operation of printing from the type.
In the drawings, forming part of this specification, Figure 1 is a plan view of a type-
writer known as the World Type-Writer with this invention applied thereto. Figure 2
is a transverse section, line 2-2, figure 1. Figure 3 is a section in detail, line 3-—3,
figure 1. Figure 4 is a section, in detail, line 4-4, figure 3.
In the drawings, A is the movable index-plate, B is the type carrying segment
pivoted thereon, C is the operating-lover for moving the type carrying segment
and D is the printing-lever pivoted to the index-plate and all otherwise in every
respect, except as to the printing-lever and as hereafter described, the same sub-
stantially as fully shown and described in the Letters Patent of the United States
before referred to.
a is the stud.or toe of the printing-lever D and by which the lever directly acts on
the type in position therefor, of the type-carrying segment, to secure an imprint of
said type.
This toe a heretofore has been rigid on the lever, that is capable of no independent
movement in relation thereto but under this invention it is separate from the lever
and capable of movement thereon through a guiding aperture 6, under the force of its
impact upon the type and it is backed by the free end of a spring band fand
preferably fastened to said spring and the spring at its other end is secured to the
lever.
This spring band facts to resist the movement stated of the impact toe of the
printing-lever, upon the type and secures a yielding and elastic pressure thereof, and
thus in the operation of the printing, with the printing-lever, the tension of the spring
being of proper adjustment, a yielding and elastic impact of the printing-lever upon
the type is secured, rendering the same practically uniform in its force, however great
the force may be which is applied to the printing-lever to secure an imprint, and also
securing an operation of the printing-lever even should the guide-bars or rails of the
machine, on which the index-plate travels and by which it and its parts are guided, be
more or less out of the proper and horizontal relation with each other, the advantages
of all of which are obvious.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, as communicated to
me by my foreign Correspondent I wish it understood that I make no claim broadly
to a printing-lever in a type-writer, I am aware that it is not new; but what I claim
as my invention and desire to secure by patent, is :-
In a type-writer in which the imprint of the type is secured by the direct impact

page_text: of a device, such as a printing-lever D thereon, the combination of a stud or toe a
free to move on said lever and a spring backing said toe, substantially as described,
for the purpose specified.
Dated this 29th day of August 1889
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.