Improvements in and relating to Means for Reducing Friction in Propeller and other Shafts.
Year: 1892

page_text: Date of Application, 27th Dec., 1892-Accepted, 4th Feb., 1893
COME LEIE SIECIFICATION.
Improvements in and relating to Means for Reducing Friction in
Propeller and other Shafts.
We, SIMON INGERSOLL, Machinist, EDWARD MORRISON AYRES, Merchant,
EDWARD BRUSH HOIT, Merchant, and HENRY MATHESON AYRES, Merchant,
all of Stamford, in the County of Fairfield, and State of Connecticut, United
States of North America, 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 :-
Figure 1 is a side elevation of the mechanism.
Figure 2 is a horizontal section of the same.
This invention has for its object the provision of certain novel devices for
reducing friction in the thrust of propeller and other shafts; and it consists in the
novel construction and combination of parts, all as hereinafter specified.
In the accompanying drawings, the letter A designates a shaft, journalled in
bearing plates B, B, in which it has bearings at a, a. C is the main thrust bearing,.
which consists of a circular disk, fixed to the shaft, between the bearing faces of
the bearing plates. Between this disk C and the bearing plates B, B, are loosely
placed on the shaft, circular plates or disks D, D, one on each side of said disk C..
These plates or disks D, D, carry, each, on their peripheries, a series of anti-friction.
rollers b, b, which turn in planes at right angles to the axis of the shaft, and are
held in place by screws or pins c, which serve as their journals.
These rollers, being confined between the bearing plates and the thrust bearing C,
serve to take up to a great degree, the friction of the end wise or longitudinal thrust
of the shaft, and the greater this thrust, the more effective is the action.
The bearing plates B, B, are held to the base plate z by means of the bolts h, h,.
which pass through slots h', h¹, in said bearing plates and into the base plate..
Against the bearing plates are the end blocks H secured to the base plate.
K, K, are set screws, which pass through the end blocka H and into engagement.
with the bearing plates. By means of these screws, the plates B, B, can be
adjusted to take up any wear or looseness.
It is obvious that if desired, the shaft A may be provided with more than one of
the thrust bearings C, and that additional series of the anti-friction rollers
employed in connection therewith.
may be
The use of this device prevents almost entirely the heating of the bearings,.
resulting from the thrust of the shaft.
It also effects a large saving of power.
Having now particularly described and ascertained the nature of said inven-.
tion and in what manner the same is to be performed we declare that what we
claim is :-
The combination with the shaft, its adjustable bearing plates B, B, and the
bearing disk C, of the disks D, D, on said shaft, the anti-friction rollers carried on
the peripheries of said disks, the end blocks against said bearing plates, and the-
screws passing through said end blocks and into engagement with said bearing:
plates, substantially as specified.
Dated this 27th day of December 1802
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.