Improvements in Ammunition Hoists
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Ammunition Hoists
We, Sir W. G. ARMSTRONG, WHITWORTH & Co., LIMITED, of Elswick Works,
Newcastle-upon-Tyne, Manufacturing Engineers, and ROBERT MATTHEWS, of
Ashton Road, Openshaw, Manchester, Engineer, do hereby declare the nature
of this invention to be as follows: -
In order that the ammunition hoist may be able to present the shot or cartridge
to the breech of the gun in the various positions to which the gun may be elevated
or depressed I make the following arrangements: the cage containing the shot
is connected to a chain or rope passing over a pulley and the chain is hauled by
means of another pulley being pressed against it by a ram and hydraulic cylinder
in the usual manner, except that the further end of the chain in place of passing
to a fixed point to be secured passes to a lever or like appliance which moves
with the gun when it is clevated or depressed. Thus whatever may be the posi-
tion of the gun the same outward travel of the ram suffices to raise the cage to
its proper position in its relation to the breech of the gun.
Dated this 9th day of July 1898.
ROBERT MATTHEWS,
By his Agents,
Improvements in Ammunition Hoists.
We, Sir W. G. ARMSTRONG, WHITWORTH & Co., LIMITED, of Elswick Works,
Newcastle-upon-Tyne, Manufacturing Engineers, and ROBERT MATTHEWS, of
Ashton Road, Openshaw, Manchester, Engineer, 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, that is to say:--
In order that the ammunition hoist may be able to present the shot or cartridge
to the breech of the gun in the various positions to which the gun may be elevated
or depressed we make the following arrangements: the cage containing the shot
is connected to a chain or rope passing over a pulley and the chain is hauled by
means of another pulley being pressed against it by a ram and hydraulic cylinder
[Price 8d.]

page_text: in the usual manner, except that the further end of the chain in place of passing
to a fixed point to be secured passes to a lever or like appliance which moves
with the gun when it is elevated or depressed. Thus whatever may be the posi-
tion of the gun the same outward travel of the ram suffices to raise the cage to
proper position in its relation to the breech of the gun.
its
Figures 1 and 2 are side elevations of vertical and inclined hoists arranged
according to this invention.
a is the cage fixed to one end of the rope b whose other end is fixed to the arm c
attached to the gun d. The rope 6 passes around a top pulley e and a bottom
pulley the latter being carried by the ram of the hydraulic cylinder j. In
Figure 2 the cage works in guides and guide pulleys are provided for the
rope.
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. A hoist in which one end of the rope or chain is fixed to a part moving with
the gun substantially as described.
2. Hoists substantially as described and illustrated in the drawings.
SIR W. G. ARMSTRONG, WHITWORTH & CO., LIMITED,
S. W. A. NOBLE, Director,
A. SHALP,
For Secretary.
R. MATTHEWS.