Improvements in Typewriting Machines.
Year: 1899

page_text: Date of Application, 13th Nov., 1899-Accepted, 16th Dec.; 1
1899...*
!
COMPLETE SPECIFICATION.
Improvements in Typewriting Machines.
A communication from abroad by WYCKOFF, SEAMANS & BENEDICT, a, Corporation
organized under the laws of the State of New York, and having its principal
place of business at Ilion, Herkimer County, New York, in the United States
of America.
I, JOIN CORRY FELL, of the Firm of Fell & James, of No. 1, Queen Victoria
Street, in the City of London, Chartered Patent Agents; do hereby declare the
nature of this, said invention and in what manner the same is to be performed
to be particularly described and ascertained in and by the following statement;
--
My invention relates to ball bearing type bars; and has for its main object to
provide a simple, durable and effective structure, and consists of the various
icatures of construction and combinations of devices hereinafter more fully
described and particularly pointed out in the appended claims.
In the accompanying drawings:-
Figure 1 is a side elevation of a portion of a typewriting machine containing a
ball-bearing type-bar embodying my invention.
Figure 2 is an enlarged horizontal section taken at the line a, a, of Figure 3.
Figure 3 is a side elevation.
Figure 4 is a vertical section taken at the line y, y, of Figure 3.
In the several views the same part will be found designated by the same numeral
of reference.
1 designates the platen; 2 the carriage; and 3 the type-ring or top plate of a
typewriting machine. On the type-ring is mounted the hanger or bracket 4.com-
prising a horizontal base-piece 5, slotted at 6 for a retaining screw 7, and a
vertically-arranged comparatively thin plate, arm or member 8, which near its
forward end is formed or provided with a circular eye or opening 9 having a ball-
bearing groove 10, which may be of V or other suitable shape, the said groove
extending all around the eye interiorly of the hanger.
The type-bar 11 is provided on one side only with a hub or boss 12 which is
beveled or coned, as at 13, at its extremity. Said coned portion of the type-bar
enters within the eye in the hanger and forms a bearing, like the bearing 10,
for a single row or circular series of anti-friction balls 14.
The type-bar is also provided with a screw 15 extending beyond the bearing 13,
and onto this screw is screwed a threaded piece or nut 16, which is formed with a
conical or tapered bearing 17, similar to that marked 13, which enters the eye
A check or set nut 18 is
in the hanger to contact with the balls 14 therein.
applied to said screw 15 on the outside of the bearing-piece 16 to hold the same
firmly in place. The shape of the bearings 10, 13 and 17 is not material so long
as proper surfaces are provided to co-operate with said balls, and so long as the
bearings may be adjusted to take up the wear, which adjustment, it will be
understood, may be readily performed by removing or loosening the check nut
and screwing in the bearing-piece 16.
By this construction the type-bar is wholly supported upon a single row of anti-

page_text: friction balls, which are so held against lateral displacement that the free or type
end of the bar is prevented from sidewise vibration, while it is enabled to swing
freely towards and away from the platen. Furthermore, by this construction a
large number of ball-bearing type-bars may be placed side by side within a given
circle or segment of a circle.
The short arm or heel of the type-bar is connected to a key lever by a rod 19
in the usual manner.
Having now particularly described and ascertained the nature of this said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. In a typewriting machine, the combination of a hanger or bracket rigidly
secured to the frame of the machine and comprising a thin vertical plate or arm
having an eye provided with an interior ball-bearing groove, a type bar arranged
by the side of the plate and having on only its plate side a laterally projecting
ball-bearing cone and a screw, a companion cone adjustable on the said screw, and
a single row of anti-friction balls fitted within the said groove and confined
between the said cones for supporting said type bar and preventing lateral
vibration of the free end thereof.
2. In a typewriting machine, the combination of a hanger or bracket rigidly
secured to the frame of the machine and comprising a thin vertical plate or arm
having an eye provided with an interior ball-bearing groove, a type bar arranged
by the side of the plate and having on its plate side only a laterally projecting
ball-bearing cone and a screw, a companion cone adjustable on the said screw, a
check nut for said adjustable cone, and a single row of anti-friction balls arranged
within the groove and confined between the said cones.
3. In a typewriting machine, the combination of a hangor or bracket rigidly
secured to the frame of the machine and comprising a thin vortical plate or arm
having an eye provided with an interior ball-bearing groove, a type bar arranged
by the side of the plate and having on its plate-side only a pair of ball-bearing
cones, one of which is adjustable, and a single row of anti-friction balls arranged
within the groove and' confined between the said cones.
4. In a typewriting machine, the combination of a thin vertical plate having an
eye provided with an interior ball-bearing groove, a base-piece extending at a
right angle to the plate, a screw for securing the base-piece to the frame of the
machine, the axis of the screw extending in a plane parallel with the plate, a type
bar arranged by the side of the vertical plate and having on its plate-side only a
laterally projecting ball-bearing cone and a screw, a companion cone adjustable
on the said screw, and a single row of anti-friction balls arranged within the
groove, and confined between the said cones.
Dated this 13th day of November 1899.