Improvements in We
Year: 1899

page_text: Improvements in
We, Sir W. G. ARMSTRONG, WHITWORTH & Co., LD., Manufacturing Engineers,
and' RALPH THEW BRANKSTON, Engineer, all of Elswick Works, Newcastle-upon-
Tyne, do hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide an improved ball-bearing gun
mounting in which there is ready access to the balls and the bearing surfaces
of which can be easily removed and renewed.
With this object the carriage is formed with a vertical pivot descending from
it and fitting into a socket in a fixed pedestal. In the upper face of this pedestal
is an annular groove containing a ring of balls which surrounds the socket.
The underside of the carriage rests on the balls and is of an oblong or oval form
of which the longer dimension is greater and the shorter dimension less than
the diameter of the ring of balls so that the carriage leaves a few of the balls
uncovered. Whenever necessary therefore the balls can be lifted out and
cleaned. In order to keep out dust from the balls cover plates may be fastened
to the carriage to cover such balls as would otherwise be exposed
It is sometimes also advantageous to form the bottom of the pivot as a ram
entering a small cylinder formed on the pedestal into which water can be forced
by a small pump to raise the pivot and lift the carriage well clear of the balls
which can then be removed and the hardened bearing surfaces on which they
run can be thus inspected or renewed.
Dated this 4th day of March 1899.
Improvements in Gun Mountings.
We, Sir W. G. ARMSTRONG, WHITWORTH & Co., LD. Manufacturing Engineers,
and RALPH THEW BRANKSTON, Engineer, all of Elswick Works. Newcastle-upon-
Tyne, do hereby declare the nature of this invention and in what manner tha
same is to be performed to be particularly described and ascertained in and
by the following statement:
-
imunored ball booring 1

page_text: mounting in which there is ready access to the balls and the bearing surfaces
of which can be easily removed and renewed.
Figures 1 and 2 are vertical sections at right angles to each other, and Figure 3
is a plan of a mounting constructed according to this invention.
b
The carriage a is formed with a vertical pivot descending from it and fitting
into a socket in a fixed pedestal c. In the upper face of this pedestal is an
annular groove containing a ring of balls & which surrounds the socket. The
underside of the carriage a rests on the balls d and is of an oblong or oval forma
of which the longer dimension is greater and the shorter dimension less than
the diameter of the ring of balls so that the carriage leaves a few of the balls
uncovered. Whenever necessary therefore the balls can be lifted out and
cleaned. In order to keep out dust from the balls cover plates e may be fastened
to the carriage to cover such balls as would otherwise be exposed.
It is sometimes also advantageous to form the bottom of the pivot as a ram
entering a small cylinder f formed on the pedestal into which water can be
forced by a small pump through the pipe to raise the pivot band lift the
carriage well clear of the balls which can then be removed and the hardened
bearing surfaces on which they run can be thus inspected or renewed.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is: --
1. The combination of a ring of balls and a pivotted carriage of elongated
form resting on the balls, the longer dimension of the carriage being greater
and the shorter dimension less than the diameter of the ring, substantially as
described.
2. The combination of a ring of balls, a pivotted carriage resting on the balls
and a hydraulic cylinder receiving the end of the pivot substantially as described.
3. Gun mountings substantially as described and illustrated in the drawings.
Dated this 30th day of October 1899.
SIR W. G. ARMSTRONG, WHITWORTH & CO. LIMITED.
S. W. A. NOBLE,
Director.
A. PHALP,
For Secretary.
R. T. BRANKSTON.