An Improved Driving Mechanism for Phonographs, Kinetographs, and the like.
Year: 1898

page_text: Date of Application, 5th Nov., 1898-Accepted, 17th Dec., 1898
COMPLETE SPECIFICATION.
An Improved Driving Mechanism for Phonographs, Kinetographs,
and the like.
We, JACOB SIMON AUGUST and JOSEPH COHN, both of 48, Ritterstrasse, Berlin, in
the German Empire, 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 improvements in phonographs, kinetographs and the like,
and consists of a frictional driving mechanism with jointed elastic bearing to increase
the precision of action for the transmission of motion from the clock work to the
receiving roller.
In order that this invention may be the better understood, I now proceed to
describe the same, reference being had to the accompanying drawings and to the
letters and figures marked thereon.
Figure 1 is a side elevation of a phonograph provided with this mechanism.
Figure 2 is a plan thereof, and Figure 3 shows a section on the line x-x of
Figure 2.
·
A sounding box a carries the plate b of the frame. Axles c d rest in standards b¹ 62
of the frame. The axle c is formed as a guide screw to guide the sliding piece e and
the sound funnel e¹ by means of a screw thread e². The axle or bar d serves to
guide the roller f.
driven
The support 6 carries also an axle h for a receiving cylinder i. The rotation of
the latter and of the axle or screw c is effected by a set of friction rollers o p q
by a clock work k l m n. The wheel p is provided with an elastic face p¹ of leather or
other suitable material. In a modification the wheel or disc consists of elastic material
the side faces of which are provided with discs of metal or other hard material to increase
their wearing and resisting qualities. The bearing of the wheel p is adjustably
mounted and spring pressed to obviate irregularities by vibration in transmission of
motion. For this purpose a lever r is pivotted to the casing 8 at 1, and a spring t
placed over the pin s¹ has a tendency to press the lever in the direction of the
arrow. In this manner the driving is simple and precise.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1st. A driving mechanism for phonographs, kinetographs and the like having a
friction wheel pressed by a pivotted lever r and a spring t against the other friction
wheels, substantially as described.
2nd. A driving mechanism for phonographs, kinetographs and the like, the friction
wheel p of which is provided on its periphery with a ring of elastic material,
substantially as described,

page_text: 3rd. A driving mechanism for phonographs, kinetographs and the like, the friction
wheel p of which consists of a disc of elastic material, the side face of which is
covered with plates of metal or other hard material to increase wearing and resisting
qualities thereof, substantially as described.
Dated this ith dow of Noromban 1000
FELL & JAMES,
Agents for the Applicants.