Improvements in or relating to Machines for Cleaning or Polishing Knives and other Articles.
Year: 1894

page_text: Date of Application, 10th Oct.,
1894
Complete Specification Left, 10th July, 1895-Accepted, 7th Sept., 1895
PROVISIONAL SPECIFICATION.
Improvements in or relating to Machines for Cleaning or Polishing
Knives and other Articles.
I, MARTIN WILLIAM WRIGHT of 50 Dale Street, Leicester, Engineer, do
hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide a machine for the purpose of cleaning
or polishing knives and other articles and which shall be simple in construction
and inexpensive as regards cost.
According to this invention the knives or other articles to be cleaned or polished
are placed between the surfaces or adjacent faces of a travelling belt or belts
receiving motion by passing over pulleys or rollers having bearings in a suitable
framing, one or more of the said pulleys being positively driven by gearing and a
handle connected to the driving wheel.
The said belt or belts may be coated or supplied with emery powder or other
polishing material and may be tensioned by a lever or levers with rollers thereon
in contact with the belts, or other suitable means, for keeping the faces of
the belts close to each other and to facilitate the polishing of the articles
referred to.
The pulleys or rollers over which the belts pass may if desired have spring
bearings and any suitable guide or device may be used to hold the knife in position
while being cleaned or polished.
Dated this 10th day of October 1894
W. P. THOMPSON & BOULT,
Agents for the Applicant.
Improvements in or relating to Machines for Cleaning or Polishing
Knives and other Articles.
I, MARTIN WILLIAM WRIGHT of 50 Dale Street, Leicester, 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:-
The object of this invention is to provide a machine for cleaning or polishing
knives or other articles and which shall be simple in construction and inexpensive
as regards cost.
According to this invention the knives or other articles to be cleaned or polished
are placed between the surfaces or adjacent faces of a travelling belt or belts
receiving motion by passing over pulleys or rollers having bearings in a suitable
framing, one or more of the said pulleys being positively driven by gearing and a
handle connected to the driving wheel.
The said belt or belts may be coated or supplied with emery powder or other
polishing material and may be tensioned by a lever or levers with rollers thereon
in contact with the belts or other suitable means for keeping the faces of
the belts close to each other and to facilitate the polishing of the articles
referred to.

page_text: The invention will be more clearly understood by reference to the drawing
accompanying this Specification.
Figure 1 is a side view of the machine with the front plate removed and Figure 2
is a vertical cross section.
A. A. & B. B. are the belts which pass round the pulleys or rollers C. C¹ & D. D'
respectively and are actuated thereby.
The rollers C C D D' are carried on studs F F F F which are rivetted or
otherwise secured to the frame or stand F.
The rollers G. H. are of rubber the latter roller being carried on a stud H¹
fixed in the frame F while the former is carried in the upper end of the tension
lever J.
The tension lever J is pivotted at J and is provided with an arm J' the lower
end of which is engaged by the spring K. By means of the said spring the
roller G is kept in close contact with the belt A. The upper end of the lever J
is forked as shown in Figure 2 to surround the roller G.
The rollers C¹ D' are driven by the spur wheels CD' formed integrally
therewith or attached thereto, the said wheel C' having a handle K' secured
thereon.
The knives or other articles to be cleaned are inserted through the opening F
the lower part being widened to allow the knives to be inserted right up to the
haft, the thickened edge of the blade resting upon the strip F forming the bottom
of such opening, and the two faces of the knife receiving a polish simultaneously
from the belts A. B. as before described.
On the top of the frame F is carried a hopper L in which is placed the emery
powder or other polishing material. On the underside of the hopper a lug L'
passes over a pin L' carried in a lug L' on the frame F.
To give the requisite intermittent movement to cause the flow of the polishing
powder from the hopper a stud M is fixed in the side of the roller D and at each
revolution of the latter the stud M comes into contact with the arm M' on the side
of the hopper L, thereby slightly raising the latter and immediately afterwards
allowing it to drop, causing a flow of the powder through the opening L' in the
front of the hopper.
A tongue L is cast on the lug L' under the hopper I, to prevent the removal,
accidental or otherwise, of the hopper without the removal first of the front
plate N. It is obvious that the machine would be equally efficient without the
plate N but when used the said plate may be kept in position by split pins N¹ N'
passing through the studs F¹ D' respectively.
A portion of the frame F is cut away at O, Fig. 1 to allow of the insertion
of a tray to catch any dust that may drop from the interior of the machine.
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 is ;-
1. In a cleaning or polishing machine the combination with the belts of rollers
such as G. H. and lever such as J operating substantially as described.
2. In a cleaning or polishing machine the combination with the belts of a
hopper or hoppers such as L operating in the manner and for the purpose
described.
3. The improved cleaning or polishing machine consisting of the parts con-
structed arranged and operating substantially in the manner described and
illustrated in the accompanying drawing.
Dated this Oth dox of Jule 1805
MARTIN WILLIAM WRIGHT.
W. P. Thompson & Co.,
31, High Holborn, London, W.C., Patent Agents for the Applicant.