Improvements in Metallic Faced Hydraulic Ram, Hat or Cup Rings.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Metallic Faced Hydraulic Ram, Hat or Cup Rings.
I, JOHN HAILWOOD, of 156, Firth Park Road, Pitsmoor, Sheffield, in the County
of York, Engineering Draughtsman, do hereby declare the nature of this inven-
tion to be as follows:-
My invention consists of improvements in the construction of hydraulic ram
hat or cup rings such as are now made entirely of leather, rubber, dexine or other
suitable material.
The object of my invention is to increase the strength or resistance of the said
rings in a line with the action of the ram, spindle or rod, so that they shall not
break or tear so readily through the material at the bend of the ring which
comes next to the working surface of the ram or cylinder on which they are
working. Also to diminish the friction between the working surfaces of said rings
and ram or cylinder.
In carrying out my invention, the said improved rings may be made of the
same material, shape, and form as ordinary hydraulic rings, but I prefer to make
them of dexine with a square corner next to the working surface of the ram or
cylinder. And in order to increase the strength or resistance of the said rings, and
at the same time to diminish the friction: the working surface of said improved
rings are covered and embedded with one or more layers of woven wire gauze
made of brass or other suitable alloy. And in order to still further increase the
strength or resistance of said improved rings for very high working pressures:
in addition to the working surface being covered with woven wire gauze, the
whole of the remaining surface may be covered and embedded with one or more
layers of wire gauze or canvas, also there may be one or more layers of wire gauze
or canvas embedded in or near the centre of the elastic material of which the said
improved rings are made.
The elastic material, and the various layers of wire gauze or canvas are pressed
and cemented together in the manufacturing process.
11907
JOHN HAILWOOD,
Applicant.
Improvements in Metallic Faced Hydraulic Ram, Hat or Cup Rings.
I, JOHN HAILWOOD, of 156, Firth Park Road, Pitsmoor, Sheffield, in the County
of York, Engineering Draughtsman, do hereby declare the nature of this inven-
Price 8d1

page_text: tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:
-
My invention consists of improvements in the construction of hydraulic ram,
hat, or cup rings, such as are now made entirely of leather, rubber dexine, or
other material which is both elastic and inadhesive.
The objects of my invention are to increase the strength or resistance of the said
rings in a line with the action of the ram, spindle or rod, so that the rings shall not
break or tear so readily through the material at the bend of the ring which
comes next to the working surface of the ram or cylinder on which they are
working. Also to diminish the friction between the working surfaces of said rings
and ram or cylinder.
In carrying out my invention, the said improved rings may be made of the
same material, shape, and form as ordinary hydraulic rings, but I prefer to make
them with a square corner next to the working surface of the ram or cylinder.
And in order to increase the strength or resistance of the said rings, and
at the same time to diminish the friction; the working surface of said improved
rings are covered and embedded with one or more layers of woven wire gauze,
made of brass or other suitable alloy. And in order to still further increase the
strength or resistance of said improved rings for very high working pressures:
in addition to the working surface being covered with woven wire gauze, the
whole of the remaining surface is covered and embedded with one or more layers
of wire gauze, also there may be one or more layers of wire gauze embedded within
the body of the elastic material of which the said improved rings are made.
The elastic material and the various layers of wire gauze are pressed and
cemented together in the manufacturing process.
Referring to the drawings hereunto annexed,
Fig. 1 represents a section of a ram ring.
Fig. 2 represents a section of a hat ring.
Fig. 3 represents a modified section of a hat ring.
Fig. 4 represents a section of a cup ring.
invention.
Each constructed according to my
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is or may be performed, I declare that what I
claim is:
1st. The combination and construction of hydraulic ram, hat, or cup rings made
of an elastic and inadhesive material, together with one or more layers of metallic
woven wire gauze, embedded on the whole or part of their outer surface, substan-
tially as herein before described and illustrated by the drawings hereunto annexed,
with reference to Figs. 1, 2, 3 and 4.
2nd. The combination and construction of hydraulic ram, hat, or cup rings
made of an elastic and inadhesive material, together with one or more layers of
metallic woven wire gauze embedded on the whole surface, and one or more layers
of metallic woven wire gauze embedded within the body of the elastic material
of which the said rings are made, substantially as herein before described and
illustrated by the drawings hereunto annexed, with reference to Figs. 1, 2, 3
and 4.
Dated this 15th day of March 1898.