Improvements in Metal Grinding Machines.
Year: 1894

page_text: Date of Application, 6th Oct., 1894
Complete Specification Left, 6th July, 1895-Accepted, 10th Aug., 1895
Improvements in Metal Grinding Machines.
I, CHARLES OXLEY Union Foundry, Mowbray Street, in the City of Sheffield,
Ironfounder and Engineer, do hereby declare the nature of my invention to be as
follows.
1
This invention relates to improvements upon the gunding machine described in
the Specification of Letters Patent No. 17,791 dated November 8, 1889, the object
being to enable long bars and other long articles to be ground longitudinally.
To accomplish this result I construct a strong framework carrying the grindstone
which can be raised and lowered by suitable means so as to bring it down upon the
work as it becomes reduced in diameter by wear.
Underneath the stone I arrange a horizontally moving trough of any required
length, resting upon rollers and moving in the direction of the revolutions of the
stone.
Upon the underside of the trough 1 fix a rack, and in the inside I fix suitable
rests or supports to carry the bar or other object to be ground.
Towards the back of the framework (by preference) I fix a fiame, say for
example two standards 11sing from a base plate, and carrying a shaft with driving
and reversing pulleys, and a toothed pinion
The pinion engages with a spur wheel fixed upon a second shaft which also
carries a pinion gearing into the rack under the trough before mentioned.
Adjustable stops are connected with the trough which actuate the belt forks and
reverse the action of the trough somewhat after the manner of the metal planing
machines.
The face of the object to be ground is placed below the water level in the
trough, and it is traversed to and to until the grinding is completed.
Dated the 4th day of October 1894.
ROBT. F. DRURY, C P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant
Improvements in Metal Grinding Machines.
I, CHARLES OXLEY, Union Foundry, Mowbray Street, in the City of Sheffield,
Ironfounder and Engineer, do hereby declare the nature of this invention and in
what manner the same has to be performed, to be particularly described and
ascertained in and by the following statement :-
This invention relates to unprovements upon the grinding machine described in
the Specification of British Patent No. 17791, dated November 8, 1889, and in
United States Patent No. 499,706, dated June 20, 1893, the object being to enable
long bars and other long articles to be ground longitudinally.
I have illustrated my improvements in the annexed sheet of drawings in which
Fig. 1, is a plan of part of grinding machine as improved, the spindle, stone, and
some other ordinary details being omitted.

page_text: Fig. 2, transverse section of travelling trough, showing Lack and pinion, also
support for the articles to be ground and other parts
Fig 3, side elevation of Fig. 1.
In cartying out my improvements I construct strong framework consisting of
a base A. and two standards B, carrying the gundstone and its diving geu, also
suitable mechanism by which the stone.C, can he raised and lowered, by which
means it can be adjusted to the work as it becomes reduced in diameter by wear,
but these parts form no part of the present invention.
Underneath the stone C, and between the standards B, I anange a horizontally
supported trough 'D, testing upon a series of hxed flauged wheels E, and capable
of being moved longitudinally in either duection under the stone, the lower edge
of which enters the tough D, as seen in Figs. 2 and 3.
A rack F, is fixed upon the underside of the trough, of sufficient length for the
purpose requied, and a punon G, with corresponding teeth is geared into it
Inside the trough his suitable re-ts of supports II, to cairy the bai or other
article I, which is to be ground, and it will be obvious that these supports will be
varied to suit the configuration of the articles
The pinion G, is fixed upon the second driving shaft J, upon which is the apoi
heel K, which engages with and is driven by a pinton L, upon the first driving
shaft M, which is provided with fast and loose pulleys-0, for reversing, the whole
being supported by a suitable fiame N.
P, is one of the two belt forks, which slidem a groove on the top of the
support Qand are moved automatically in either direction by the rotary action of
the shaft R, and the shaft is moved in the following inaunci.
Upon the shaft I fix a balanced arm'S, provided with a small toller T, and in a
honzontal groove U, in the side of the trough D, I hy two adjustable stops V,
and V, the position of which determines the length of the travel of the trough
When the trough is travelling and the stop V2, comes in contact with the
roller T, it forces the roller down and turning the shaft partly round throws one
belt upon the fai loose pulley and the other upon the fast pulley, while the action
of the stop V, raises the roller and throws the belts upon the opposite pulleys,
eversing the motion of the second shaft and the travel of the trough as will be
well understood by those conversant with reversing mechanism.
In order to stop the machine or to reverse by hand, the shaft R, is made hollow,
and a shaft passed through it, each shaft has a handle W, and a finger X, in
connection with its strap fork, and they can be opened so as to throw the belts
upon both loose pulleys and can be locked in that position by the catch Y, but I
make no present claim to.this.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim 18:
1. In a ginding machine such as herembefore bitefly described, a long trough
shaped travelling table D, in or upon which the articles to be ground are fixed,
provided with a longitudinal tack E, and adjustable stops V, and V2, and duven
by a pinion G, on abaft J, and gearing K, L, M, and O, substantially as
hereinbefore described and with reference to the drawings
2. In a grinding machine, the combination and arrangement of the various parts
of the mechanism lettered from D, to X, mclusive, hereinbefore described and
shown an the aunexed drawings.
Dated the 4th day of July 1895.
Dated the 4th day of July 1895.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.