Improvements in Type-writing Machinery, and in Manufacturing Parts thereof.
Year: 1894

page_text: Date of Application, 14th June, 1894
'Complete Specification Left, 16th Apr., 1895-Accepted, 14th June 1895
PROVISIONAL SPECIFICATION.
Improvements in Type-writing Machinery, and in Manufacturing
Parts thereof.
We JAMES TARBOTTON ARMSTRONG, of 64 Aldersgate Street in the City of
London, Electrical Engineer and ALBERT JOSEPH ALTMAN, of City Steamn
Works, Barbican also in the City of London, Manufacturer do hereby declare
the nature of this invention to be as follows:-
This invention is designed to improve, simplify and strengthen the construction
of certain descriptions of type writing machinery.
The framing is of suitable description for supporting the parts in their relative
operative positions.
The paper feeding roller may be of metal rod with rubber covering one end of
the rod having a milled head by which to give it rotation in its end bearings and
a spring-centreing stop may aid correct spacing. Above the paper on this rod
presses a roller which may be formed with recesses or depressions in an elastic or
other face to permit the printed characters formed to lie in these openings and be
missed by the roller's surface.
The feed bar on which the type carriage traverses is formed with ratchet teeth
into which engage a pair of feed dogs centred on a common centre and actuated
by crossed arms linked at their outer ends by spring.
The said centre is a stud projecting rearwardly of a tilting plate provided with
a thumb piece, mounted on a carriage running on a tubular support on the feed
bar, and as the plate is tilted the one dog holds in a tooth of said bar, whilst the
other dog is carried forward and claws another tooth, the return of the plate to
its normal position allowing the first dog to spring up to another tooth forward of
that it had just butted against. A slot in this tilting plate engages a removable
stud on tubular support thereby forming a steadying guide thereto. At foot this
tilting plate has an extension at right angles in which is an opening through which
the types on the type wheel protrude to the paper beneath and print.
This opening is however much larger than needed for that purpose and across
it is secured a spring plate in which is, a smaller hole of the size desired; by this
means we are enabled to adjust the strength of impression.
This extension.carries a coned headed stud which engages one of a series of
openings in the type wheel and so ensures correct. placement of the type selected.
Also it carries a slide, made adjustable by screw stud and slot, having a finely
wedge shaped end by meeting the rim of. the type wheel serves to adjust the
amount of travel allowed the wheel relatively to the paper.
This extension also carries an arm and hollow rimmed pulley also a pointer.
This pulley runs on a rigid rod on the base plate held in position for work at
one end by a pivot screw and at the other end by a spring clip, so that it can be
removed to release the paper otherwise held down by it.
The type wheel is formed with a disc and flange, in the flange are pierced the
series of openings already referred to and another series of circular or equivalently
shaped holes through which are protruded a series of round or equivalently and
correspondingly shaped pillars or type bodies each carrying a letter, figure, or
ion.

page_text: These bodies are formed upon a base strip which controls the extent of their
protrusion and holds them in place, aided by a spring inwardly of them which
presses them tightly against the inner face of the flange.
The type wheel has centrally a hollow sleeve by which it is mounted on a stud
from the tilting plate and a screw secures it thereon.
A cross bar or like part. and a pin from the sleeve serve to secure correct relative
adjustment and support to an indicating disc, bearing corresponding letters &c. to
those on the type faces and this disc has a front hand and a rear slotted sleeve
adapted to be slidden onto the type wheel sleeve.
The types are inked by means of two felt or like rotary inkers each mounted on
arms pivotted on the tilting plate and pressed to their work by spring.
On the thumb piece arm is mounted an index finger which serves as a guide for
the selection and correct positioning of the type wheel to print the selected type,
the indicating disc being turned until the corresponding sign thereon is aligned
to the index finger-the types being so arranged that alignment of the pointer or
finger with the upper edge of the letter or sign or the disc will print a capital
letter and when aligned with the lower edge it. will print small letters.
Mounted on the thumb piece arm is a spacer consisting of a pivotted arm and
a presser plate which when its separate thumb piece is depressed causes it to rest
on the top edge of the teeth of the feed bar and the feed dogs act but no printing
takes place.
The types may be of either metal or india rubber.
By making the type bodies cylindrical and circular, or substantially so, in cross
section we are enabled so much enhance the strength of the type wheel flange,
whilst securing the convenience of close arrangement of the types.
These types may be moulded by means of a matrix for the face coming up
against a plate in which its body is formed by a correspondingly shaped hole
through it one of a series of like holes-and the back strip is formed by another
or other moulding parts.
By this means the face is shaped to the type required and then the face and
body can be withdrawn through the hole in the plate and so on along the series
all attached to the one back strip.
The upper and under paper holding rolls are geared together and to facilitate
release of the paper in either direction, when required, and as more convenient,
we mount at the end a double cam or rachet piece adapted to be engaged with
teeth of a wheel on the holding roll in either direction as may be required so as
to turn the holder rolls backwards or forwards.
By means of the construction of type wheel supports and tilting plate and its
attachments as described the whole of these parts can be turned back upon the
feed bar as a pivotal centre exposing the work free of any intervening mechanism,
enabling the under parts of the plate to be cleansed or inspected, and the whole
device can be slidden along the feed bar freely.
By the construction of rigid paper holding and spacing bar and its co-operation
with the bearing hollow edged roll supporting the type wheel plate and attachments
we are enabled, with the aid of hard type to produce most effective manifolding
of the printing or type written signs on superimposed sheets.
Dated the 14th day of June 1894.

page_text: This opening fis however much larger than needed for that purpose and across
it is secured a spring plate f in which is a smaller hole f' of the size desired; by
these means we are enabled to adjust the strength of impression. This extension f
carries a coned headed stud f which engages one of a series of openings in the
type wheel g, and so resumes correct placement of the type selected.
This extension also carries an arm, and hollow rimmed pulley f' also a
pointer ₤10.
This pulley runs on a rigid rod i on the base plate, A held in position for, work at
one end, by a piyot screw, and at the other end. by a spring,clip., so that it can
be removed to release the paper otherwise held down by it.
This rod is marked, with suitable divisions and the pointer. 10 indicates the
amount of traverse the type wheel has taken. The type wheel g is formed with,a
-disc g¹ and flange g², in the flange are pierced the series of openings.h, already
referred to and another series of circular or equivalently shaped holes through
which are protruded a series of round or equivalently and correspondingly shaped
pillars or type bodies each carrying a letter figure or sign. These bodies are
formed upon a base strip g' which controls the extent of their protrusion and holds
them in place, aided by a spring ring inwardly of them which presses them
tightly against, the inner face of the flange,. 9. The type wheel has centrally
a hollow sleeve g by which it is mounted on a stud 9 from the tilting plate fanda
screw secures it thereon. A cross bar or..like part and a pin from the sleeve
serve to secure, correct, relative adjustment and support to an indicating disc, k
bearing corresponding letters etcetera to those on the type faces and this disc has a
front handle and a rear slotted sleeve adapted to be slidden onto the type
wheel sleeve 9. The types are inked by means of two felt or like rotary. inkers
each mounted on arms pivoted on the tilting plate and pressed to their work by
a spring
On the thumb piece arm f¹ is mounted an index finger m which serves as a guide
for the selection and correct positioning of the type wheel to print the selected type,
the indicating disc being turned until the corresponding sign thereon is aligned to
the index, finger, the types being so arranged that alignment, of the pointer
or finger with the upper edge of the letter or sign on the disc will print a capital
letter and when aligned with the lower edge it will print.small letters.
and.
Mounted on the thumb piece arm is a spacer consisting of a pivotted arm n
a presser plate which when its separate thumb, piece n2 is depressed causes it to
rest on the top edge of the teeth of the feed bar cand the feed dogs e e' act but no
printing takes place.
The types may be of either metal or india rubber. By making the type.bodies.
cylindrical and circular, or substantially so,.in cross section we are enabled to much
enhance the strength of the type wheel, flange, whilst securing the convenience of
close arrangement of the types.
These types may be moulded by means of a matrix, for the face coming up
against a plate in which; its body is formed by a correspondingly, shaped hole
through it one, of a series of clike holes & the back strip is formed by another,
or other moulding parts. By this means the face is shaped to the type required, and
then the face and body can be withdrawn through the hole in. the, plate and so on
along the series all attached to the one back strip.
The upper paper holding, roller 6, has provided at one end a lever o with axis o
and cam groove o by means of which the roller may be raised so as to facilitate
the release of the paper..
By means of the construction, of type, wheel supports and tilting plate and
its attachments as d'escribed the whole of these parts can be turned back upon.the.
feed bar c as a pivotal centre, exposing the work free of any intervening mechanism,
enabling the under parts of the plate to be cleansed or inspected, and the whole
device can be slidden along the feed bare freely.
By the construction of rigid, paper holding and spacing bar i and, its cooperation
with the bearing hollow edge roll supporting the type wheel plate and

page_text: attachments we are enabled, with the aid of hard type to produce most effective
manifolding of the printing or type written signs on superimposed sheets.
Having now particularly described and ascertained the nature of our said
nvention and in what manner the same is to be performed we declare that what
we claim is :-
In the manufacture of typewriting machinery.
1. The construction and arrangement of the parts of the type supporting
cylinder with round accurately spaced peripheral holes and the method of arranging
and supporting round types on a back or web so as to attain greater body
of material to stay or hold the adjacent types together in position in the cylinder
holes and to secure perfect alignment as set forth.
2. The construction and arrangement of the parts of the type supporting cylinder
with round accurately spaced peripheral holes and the method of arranging and
supporting round types on a back or web so as to attain greater body of material
to stay or hold the adjacent types together in position in the cylinder holes and to
secure perfect alignment in combination with the spacing tooth rack and spring
actuating jaws and spacer mechanism as set forth.
3. The construction and arrangement of the spring actuated gripping jaws for
engaging the tooth rack for operating the spacing mechanism of the machine as set
forth.
4. The pulley wheel and its arrangement supported on the space bar i in front so
as to prevent "take off" of ink from the parts other than the type face at the
impression blow and thereby to make it available as a duplicator or a multiplicator
as set forth.
5. The construction and use of the framing or case, in combination with type
writing machinery constructed substantially as set forth.
6. The construction and arrangement of the spacer n³ on the printer bar or tilting
leverf as an independent adjunct thereto to cooperate with the rack feed bar as
set forth.
7. The general construction and combination or arrangement of the parts of the
mechanism for the purposes of a typewriting machine substantially as set forth and
shewn by the drawings.
Dated the 16th day of April 1895.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicants.