Improved Knife Cleaning Machine.
Year: 1894

page_text: Date of Application, 18th May, 1894.
Complete Specification Left, 18th Feb., 1895--Accepted; 23rd Mar., 1895,
HENRY BENNETT of Middleton Saint George in the County of Durham do
hereby declare the nature of this invention to be as follows:-
My invention consists of a knife cleaner, constructed so that the knife or knives
are placed between two belts running close together both at the same speed and
in the same direction thus cleaning both sides of the knife at the same time.
I would place the pulleys and shafting on which the belts work on a base plate,
the pulleys to be placed on the end of each shaft to facilitate the changing of
the belts. The standards and journals carrying the shafts to be on the right
hand or on one side of the pulleys. The belts and pulleys to be. any suitable
width, and one pulley placed a little above the other for one belt to work upon.
The other pair of pulleys and belts to be placed alongside and sufficiently
close to the other pair that the belts will touch. each other when in motion. On
the other end of the two bottom shafts I would place a pair of wheels of equal
diameter so that the belts would run at the same speed, the handle or crank to
work the same to be placed on the right hand or wheel end of the shaft.
The belts I would have made of a composition of india rubber and emery
powder or other polishing substance, or if preferred may be leather belts or belts
made of other suitable material. The belts instead of running vertically may be
fixed to work horizontally if preferred.
Dated this 17th day of May 1894
Improved Knife Cleaning Machine.
I, HENRY BENNETT, of 3, Princes Terrace, Darlington, and late of Middleton
St. George, both in the County of Durham, Inspecting 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:-
My invention consists of a knife cleaner, constructed, so that by placing the knife
or knives between two endless belts running close together, both at the same speed
and in the same direction, both sides of the knife or knives are cleaned at the same
time.
A machine embodying my invention is illustrated in the accompanying drawing,
in side elevation in Figure 1 and in end elevation to the left in Figure 2. The
machine is preferably mounted on its own base plate a, and consists of two lower
pulleys bb and two upper pulleys ce rotating upon shafts and c'e' respectively,
which have their bearings or journals housed in the standards dd, those of lower
shafts 6 61 being fixtures and those of the upper shafts e c' being adjustable and
controlled by spiral springs ee or their equivalents, to keep the belts in a
proper state of tension. The journal blocks g g whilst free to adjust themselves
vertically under the action of the springs e e are restricted as to their sideward
movement either by fully occupying the space from side to side within the

page_text: housings d d like a slide block or by being kept in surface contact with one side
only by means of a spring at the other side as shown in Figure 2, the resilience of
which has the advantage of sustaining a uniform or adjustable pressure of contact
between the belts and the knife blade irrespective of variations of thickness or the
like inequalities in the knife to be cleaned or in the belts themselves. The
shafts bbare geared together so that both are rotated by turning the handle h.
The knife is inserted between the belts ff with its back supported against the
rest so that by turning the handle the belts rub past the blade of the knife and
both in the same direction. One such rest only is shown in the drawings but
other rests would be provided in machines intended to clean more than one knife
at a time.
The pulleys are preferably detachable from the shafts which are inserted into
them endwise so as to enable the belts to be readily replaced when required. The
belts may be made of any suitable material such as a composition of india rubber
and emery powder or other polishing substance or surface such as a brush, or if
preferred leather belts may be used. The belts may be made to run in contact
vertically or horizontally or at any convenient angle.
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 :-
In a knife cleaning machine the use of endless belts, passing round pullies and
brought into surface contact with each other, so that a kuife inserted between them
is cleaned on both sides simultaneously, all combined, arranged and operating
substantially as hereinbefore described with reference to the accompanying
drawing.
G. J. CLARKSON,
Chartered Patent Agent, Stockton-on-Tees,
Agent for the Applicant.