Improvements in Typewriting Machines.
Year: 1899

page_text: Date of Application, 23rd May, 1899-Accepted, 24th June, 1899
COMPLETE SPECIFICATION.
Improvements in Typewriting Machines.
I, JOIN WINSOR, of 64, Mott Street, Corry, in the County of Erie, and State of
Pennsylvania, United States of America, Manufacturer, 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 typewriters and particularly to the application or
arrangement of the type bar brackets in relation to the supporting disc carried
by the frame of the machine.
The invention has for its object to permit the application of a type bar having
an extended or long bearing within its supporting bracket in such a manner that
the largest number of said brackets may be applied to the disc of the machine
within a stated area. This object is accomplished by locating a series of these,
brackets with their pivotal ends in the same vertical plane and at an equal
distance from the axis of the supporting disc, that is supporting two of the brackets
above the disc and two below, whereby the long pivots may be so nested as to
permit the application of four type bars one beneath another with their pivots
at an equal distance from the axis of the disc. The invention has for a further
object to produce an improved construction of the several parts for permitting
this arrangement of the type bars each upon a similar pivotal center and the free
movement of the same when so nested or arranged.
Other objects and advantages of the invention will hereinafter appear in the
following description and the novel feature thereof will be particularly pointed
out in the appended claims.
In the drawings:
Fig. 1 is a detail section illustrating a series of four type bars in position upon
the supporting disc.
Fig. 2 is a similar detail section with the said bars at rest.
Fig. 3 is a detail front elevation of a series of type bars.
Fig. 4 is a top plan view, and
Fig. 5 is a detail of the pivotal end of one series of the type bars.
Like letters of reference indicate like parts throughout the several figures of
the drawings.
The letter A designates a disc or other supporting surface carried by the frame
of a typewriter, from which the type bar brackets are supported. Above this
disc the usual platen A is located and carried in the movement of the carriage
across the disc. The disc beneath this platen is cut away as at A² so that the
platen may be lowered to bring the lines of contact between the platen and the
type bars more central for heavy or thick manifolding work. It is also proposed
to omit several of the type bars beneath or at the cut away portion of the disc
so as to not interfere with the travel of the platen above the disc.
The type bars are arranged in a series of four bars each numbered 1, 2, 3 and 4,
respectively, in their descending order and of slightly increasing length. For
the purpose of illustration in this application only a portion of the bars have
been illustrated, but in the machine when constructed, the disc will carry a

page_text: number of type bars, for instance eighty-four in the complete circle, the pivot of
each bar being eleven-sixteenths of an inch long. These type bars are supported
in two brackets of different characters; for instance, the brackets B are similar
in shape and configuration and support the bars 1 and 3, while the brackets B¹
are provided with a bearing in a plane lower than the brackets B and support
the bars 2 and 4. By reference to Fig. 1 which is taken upon the line 1-1 of
Fig. 3, looking in the direction of the arrow, it will be seen that the bars 1 and 2
are supported by the upper set of brackets B and B₁, which brackets rest upon
the upper face of the disc and are clamped thereon by means of a screw C and
an interposed plate C. The depending pivoted end of the bracket B' permits
the long bearing of the bar 2 to lie beneath a portion of the bearing of the bar 1.
Likewise the second set of brackets B and B', which support the type bars 3 and 4
respectively, are located beneath the ring and are clamped against the under
face of the same by means of a screw D which engages a clamping plate D'.
This screw D passes through an aperture formed in the plate U¹ between the
screws C and is threaded into the plate D'. The brackets supporting the type
bars 3 and 4 are nested similarly to the upper set of brackets B and B¹ with
the exception that they are slightly moved to one side so that the type bars will
not lie beneath the corresponding bars in the upper set but will be located between
the same, for instance as illustrated, the bar 4 will lie beneath the bars 1 and 2
and the bar 3 between the bar 1 of one series and the bar 2 of the next adjacent
series.
Each of the brackets B and B is composed of a loop portion b, by which they
are clamped in position and at their outer ends are offset as at b, immediately
adjacent to the long bearings E carried by the type bars. This structure of
bracket supports the bearing while the inner end of the type bar lies between the
walls of the loop b, and is thus held against lateral movement. The inner end of each
of the type bars is pivotally connected with the usual rods F which are operatively
connected with the key board of the machine as usual. The series of type bars
when they are at rest, bear upon the usual ring G supported by the frame
for that purpose and each of the bars carries at its outer end a suitable type.
The type bars of each series are pivoted in successive planes in a descending
order so that the bar 4 is the lowest of the series. This it will be understood is
necessary to bring the type bar pivots in a vertical line and at an equal distance
from the axis of the ring to concentrate a number of bearings in a small area.
The outer end of each of the bars is also suitably offset or bent to throw the bar
into its proper alignment which is necessary in view of the lowering of the bars
in the series. The inner or pivoting end of the bars may also be suitably cut
away or recessed to prevent interference with adjacent bearings or brackets; for
instance, the bar 2 is cut away at E upon its under side to prevent contact or
interference with the pivot of the bar 3 which lies immediately beneath the
bar 2. The bar 3 is also recessed upon its upper surface as at E2 so as to permit
the proper swing of the bar without interference with the pivot E of the bar 2
which is immediately above the bar 3. The pivotal end of the bars 1 and 4 may
be substantially the same as they are not in such position as to interfere with
the pivots or brackets of adjacent bars. This recessing materially assists in per-
mitting the close assemblage or nesting of the bars and their brackets which is
also greatly facilitated by means of the offsets in the brackets located immediately
adjacent to the pivoting point for the type bar. By this means, a series of four
successively lowered bars may be used and all of the pivots located in the same
vertical plane. This location of all of the type bar pivots in the same vertical
plane at an equal distance from the axis of the ring is a very material and essential
improvement in this art as it permits the most advantageous length of pivot to
be used without materially altering the length of the bars or their pivotal centers,
which difference in length causes a different leverage upon the individual bars
and thus fails to produce a uniform character of stroke which is essential to the
most desirable class of work.

page_text: It will be obvious that my improvement can be applied to any class of type-
writers and that the brackets and type bars may be increased or diminished in
the number of series used and various means for securing the same applied
without departing from the spirit of this invention as defined by the appended
claims.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is:-
1. In a typewriter, the combination with a supporting ring, of type bar brackets
located beneath said ring, a clamping plate beneath said brackets, a securing
screw passed through said ring into said plate, type bar brackets located upon the
upper surface of said ring, a clamping plate above said upper brackets and
provided with apertures in alignment with the heads of the screws for the lower
clamping plate, and securing screws extending from said upper plate into said
ring, substantially as specified.
2. In a typewriter, the combination with a supporting ring, of two type bar
brackets located upon the upper surface of said ring and having their pivoting
portions extending in different horizontal planes, two type bar brackets located
beneath said ring and having their pivotal portions extending in different
horizontal planes, all of said brackets having their pivotal ends at an equal
distance from the axis of the ring, and means for clamping said brackets in contact
with the opposite faces of said ring, substantially as specified.
3. In a typewriter, the combination with a supporting ring, of two type bar
brackets located upon the upper surface of said ring and having their pivoting
portions extending in different horizontal planes, two type bar brackets located
beneath said ring and having their pivotal portions extending in different
horizontal planes, all of said brackets having their pivotal ends at an equal
distance from the axis of the ring, a plate above said upper brackets, a clamping
plate beneath said lower brackets, screws threaded into said ring for clamping
said plates in contact with said brackets, substantially as specified.
4. In a typewriter, the combination with a support, of a series of type bar
brackets B, B, the brackets B having their pivotal points in one horizontal
plane and the brackets B₁ having their pivotal points in another and lower hori-
zontal plane, all of said pivotal points being in a single vertical plane at an equal
distance from the axis of the support, offsets at the pivotal ends of said brackets,
a series of type bars 1, 2, 3, 4, carried by said brackets and provided with
elongated pivots which overlap each other, the bars 2 and 3 of said series having
cut away portions upon their lower and upper surfaces respectively at their
pivotal ends, and means for operating said type bars, substantially as specified
Dated this 23rd day of May 1899.
BOULT & WADE,
Agents for the Applicant.