An Improved Polishing Ring for Polishing Granite, Marble, and Stone.
Year: 1893

page_text: uate of Application, 26th Oct., 1893
Complete Specification Left, 26th July, 1894-Accepted, 13th Oct., 1894
TRUVIDIONAL DIMUIFICATION.
An Improved Polishing Ring for Polishing Granite, Marble,
and Stone.
I, TOM INMAN of the Britannia Steel Works, Leadmill Street Sheffield, in
the County of York, Steel Manufacturer do hereby declare the nature of this
invention to be as follows:-
:―
An improved polishing ring, to be made of steel or any other metal or combina-
tion of metals, for use in polishing granite, marble, and stone. The object of this
invention is to provide for the use of interchangeable blocks, fixed by screws or
otherwise to a frame in such a manner as to be more serviceable than the present
common mode of casting such polishing rings in one solid piece. The invention
consists of a plate or frame made from steel, or any other metal or combination of
metals, to the underside of which I attach various shaped blocks or discs (which
may be made from steel, or any other metal or combination of metals) by means of
screws, or otherwise, so that these discs or blocks may be readily interchangeable,
and easily replaced as they become worn down. The plate or frame has on its
upper side an attachment for fastening the ring to a handle for convenience in use
of the complete polishing ring thus formed by the plate or frame and the
interchangeable discs or blocks before mentioned.
Dated this Twenty-fifth day of October 1893.
COMPLETE
SPECIFICATION.
An Improved Polishing Ring for Polishing Granite, Marble,
and Stone.
I TOM INMAN, of Britannia Steel Works Leadmill Street Sheffield in the
County of York Steel 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 is for an improved polishing ring to be made of steel, iron, or any
other metal, or combination of metals for use in polishing granite, marble, stone,
slate, or other like substance. The object of this invention is to provide for the
use of interchangeable blocks, or discs, fixed by taper pins, or otherwise, to a frame
in such manner as to be more serviceable than the present common mode of casting
such polishing rings in one solid piece.
The invention consists of a plate or frame made from steel, iron, or any other
metal, or combination of metals, to the underside of which I attach various shaped
blocks or discs (which may be made from steel, iron, or any other metal or
combinations of metals) by means of round taper pins or otherwise so that these
discs or blocks may be readily interchangeable & easily replaced as they become
worn down.
These blocks, or discs, form the only part of the ring which will wear down in
working on granite, or other like substance, thus ensuring a great saving in the
renewal of these polishing rings.
Further, these blocks or discs can be so constructed with a lip on the outer edge
that they join (as shewn in the plan of the drawings marked A) thus forming a
continuous ring, which will prevent the waste of the liquid material used in the

page_text: process of polishing; these lips may also be made to overlap each other with a
small space between them so as to allow an outlet for spent polishing material.
These blocks or discs vary in number according to the size of the rings & the
smallest sizes of rings may be constructed of one or two blocks only.
The blocks or discs are fastened to the frame, as before mentioned, by means of
a round taper hole & taper pin to suit same. The pins are held in position by
having a hole in the upper part through which a key or split pin can be put to
securely fasten them to the frame also they may be fastened by means of a nut &
screw.
The frame is recessed on the underside to admit the blocks or discs, & is provided
with slots between each block or disc, which slot will serve the purpose of feed
holes, through which the polishing material can be put; on the upper side of the
frame two lugs are cast with oval, hexagon, or octagon holes; these holes are
provided with hardened steel bushes which can be replaced when worn out at a
very small cost; these lugs form the permanent attachment for the fixing, on to
the driving shaft.
The two holes in the centre of the frame & in juxta-position to the lugs are also
provided for the purpose of feeding with the polishing material.
The accompanying drawings will fully explain the nature & construction of this
invention.
INDEX TO LETTERS ON DRAWINGS.
A. Plan of half the ring shewing blocks in position.
B. Plan of
"
"
"
"
C. Shewing horizontal view of A.
frame without blocks.
D. Section cut through frame at A & B without blocks.
E. Diagram of pin or bolt being used to secure the blocks to the frame.
The top or plain straight line in drawings C & D represents the underside of the
ring.
Having now particularly described & ascertained the nature of my said inven-
tion & in what manner the same is to be performed I declare that what I
claim is :-
I. An improved polishing ring for use in the polishing of granite, marble stone
slate or any other like substance, consisting of moveable blocks, frame, pins, fitted
& arranged substantially as herein before described & shewn in drawings.
II. The distinct feature of novelty claimed is the moveable blocks fitted in
manner described securing increased durability & effecting a distinct improvement
on the previous common mode of casting such polishing rings in one piece.
Dated this 25th day of July 1894.
TOM INMAN.