Improvements in Revolving Knives or Cutters, Apparatus and Appliances Connected therewith, as Applied to Machines for Cutting and Mincing Meat and the like Purposes.
Year: 1887

page_text: Date of Application, 31st Jan., 1887
Complete Left, 31st Oct., 1887
Complete Accepted, 2nd Dec., 1887
Improvements in Revolving Knives or Cutters, Apparatus and
Appliances Connected therewith, as Applied to Machines for
Cutting and Mincing Meat and the like Purposes.
I, JOHN HALL NEWTON, of Station Road, Sheffield, in the County of York,
Mechanical Engineer, do hereby declare the nature of my Invention for "IMPROVE-
MENTS IN REVOLVING KNIVES OR CUTTERS, APPARATUS, AND APPLIANCES CONNECTED
THEREWITH AS APPLIED TO MACHINES FOR CUTTING AND MINCING MEAT AND THE
LIKE PURPOSES," to be as follows
-
The object of my Invention, is to provide a more convenient and effectual means of
fixing, securing, adjusting, and removing, the Knives, or Cutters, (hereinafter called
the Cutter, or Cutters,) of Machines of this class, than is obtainable by the ordinary
means at present in use.
I effect this object by employing in conjunction with a specially formed Cutter, or
Cutters, a specially constructed appliance, or appliances, one of which, is fitted and
used with each Cutter, in combination with other appliances ordinarily in use.
The special feature in the form of the Cutter lies in the arrangement and form
of the slot, at the driving end of the same, and consists in forming the slot at
two angles, instead of being parallel to the line of radius for the whole of its
length.
The specially constructed appliance consists of a metallic bush, formed with two
Collars, the bush being bored and key gated to fit the Cutter spindle of the Machine,
which is turned and fitted with a key or feather, of a length sufficient to receive
whatever number of cutters may be required to be used, together with their
appurtenant bushes and collars.
The distance between the two collars of the bush is sufficient to admit the slotted
end of the Cutter; and the body of the bush between the collars is squared on two
sides, the distance across the squares, corresponding to the width of the slot in the
Cutter; the end of this slot nearest the blade of the cutter is made semicircular to a
radius corresponding to the diameter of the body of the bush before the two sides are
squared, so that, when the blade is forced on to the bush to the extremity of the slot,
a close fit may be obtained.

page_text: Whatever number of cutters may be used, a corresponding number of the specially
constructed bushes are placed upon the driving, or cutter spindle of the machine, the
relative positions of the Key gates, to the squared portions of the body of each bush,
being arranged to correspond to the angles at which the cutters may be placed to
each other, (which of course will vary according to the number of cutters used);
when the required number of bushes have been placed and arranged on the spindle, a
washer of the same diameter as the bushes is then placed in position, followed by a
nut which is then screwed on to the end of the spindle until all the bushes are brought
close together without being tightened.
The Cutters may then be placed in position as follows:-
-
In placing or fitting the cutter on to the bush, the slot is passed or forced on to the
square part of the body of the bush in two directions; the first direction being
downward and diagonal, and the second horizontal.
When the cutters and the washer have in this manner been adjusted to the
required position on the driving spindle the nut at the end is then screwed up
tight when the collars of all the bushes are forced tightly to the sides of their
respective cutters.
To insure this tightening the collars of each bush are turned hollow on both sides,
so that they come in contact near their peripheries only, the face of the washer is
likewise turned hollow, in the same way, and in some cases the face of the nut may
be turned hollow and the washer dispensed with.
When the whole of the cutters have thus been tightened into position between the
collars of their respective bushes a lock nut, or other equivalent device, may be
employed to secure the same.
When it is necessary to adjust or remove, a cutter or Cutters, by loosening the nut
or nuts, at the end of the spindle, the whole of the cutters may be easily removed or
adjusted as required.
The nature of my Invention will be better understood on reference to the accom-
panying sheet of drawings in which,
Fig. 1, is the specially formed cutter.
Fig. 2, is a front elevation and
Fig. 3, is an end elevation of the specially constructed appliance called the
bush.
Figs. 4 and 5, are sections of the same shewing two forms in which they may be
turned hollow on their faces.
Fig. 6, is an elevation of the cutter placed in position on the bush and,
Fig. 7, is an end view of the same.
Fig. 8, shews the end of the driving spindle with four Cutters, four Bushes, and a
washer placed in position and screwed up tight with nut and lock nut.
The same letters refer to similar parts throughout the several views.
a is the cutter or cutters, 6, 7, is the slot formed at two angles, c, is the collar or
collars of the bush, d is the body of the bush, e, is a portion of the driving or cutter
shaft of a machine, f, being a fast collar on the same, g, is the hollow faced washer,
7, is the nut by which the Cutters and Bushes are tightened upon the spindle, and i,
is a lock nut for securing the same.
Dated this 29th day of January 1887
R. HEBER
RADFORD,
Agent for the Applicant.

page_text: Improvements in Revolving Knives or Cutters, Apparatus and
Appliances Connected therewith, as Applied to Machines for
Cutting and Mincing Meat and the like Purposes.
I, JOHN HALL NEWTON, of Station Road, Sheffield, in the County of York,
Mechanical Engineer, do hereby declare the nature of my Invention for "IMPROVE-
MENTS IN REVOLVING KNIVES OR CUTTERS, APPARATUS, AND APPLIANCES CONNECTED
THEREWITH AS APPLIED TO MACHINES FOR CUTTING AND MINCING MEAT AND THE LIKE
PURPOSES," 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 my Invention, is to provide a more convenient and effectual means
of fixing, securing, adjusting, and removing the Knives, or cutters, (bereinafter called
the cutter or cutters,) of machines of this class, than is obtainable by the ordinary
means at present in use.
I effect this object by employing in conjunction with a specially formed cutter, or
cutters, a specially constructed appliance, or appliances, one of which, is fitted and
used with each cutter, in combination with other appliances ordinarily in use.
The special feature in the form of the cutter lies in the arrangement and form
of the slot, at the driving end of the same, and consists in forming the slot at
two angles, instead of being parallel to the line of radius for the whole of its
length.
The specially constructed appliance consists of a metallic bush, formed with two
collars, the bush being bored and keygated to fit the cutter spindle of the machine,
which is turned and fitted with a key or feather, of a length sufficient to receive
whatever number of cutters may be required to be used, together with their
appurtenant bushes and collars.
The distance between the two collars of the bush is sufficient to admit the slotted
end of the cutter; and the body of the bush between the collars is squared on two
sides, the distance across the squares, corresponding to the width of the slot in the
cutter ;
the end of this slot nearest the blade of the cutter is made semicircular to a
radius corresponding to the diameter of the body of the bush, before the two sides are
squared, so that, when the blade is forced on to the bush to the extremity of the
slot, a close fit may be obtained.
Whatever number of cutters may be used, a corresponding number of the specially
constructed bushes are placed upon the driving, or cutter spindle of the machine the
relative positions of the Key gates, to the squared portions of the body of each bush,
being arranged to correspond to the angles at which the cutters may be placed to
each other (which of course will vary according to the number of cutters used) when
the required number of bushes have been placed and arranged on the spindle, a
washer of the same diameter as the bushes is then placed in position, followed by a
nut which is then screwed on to the end of the spindle until all the bushes are
brought close together without being tightened.
:-
The Cutters may then be placed in position as follows :-
In placing or fitting the cutter on to the bush, the slot is passed or forced on to the
square part of the body of the bush in two directions; the first direction being
downward and diagonal, and the second horizontal.
When the cutters and the washer have in this manner been adjusted to the required
position on the driving spindle the nut at the end is then screwed up tight; when
the collars of all the bushes are forced tightly to the sides of their respective
cutters.

page_text: To ensure this tightening the collars of each bush are turned hollow on both sides,
so that they come in contact near their peripheries only, the face of the washer is
likewise turned hollow, in the same way, and in some cases the face of the nut may
be turned hollow and the washer dispensed with.
When the whole of the cutters have thus been tightened into position between the
collars of their respective bushes a lock nut, or other equivalent device, may be
employed to secure the same.
When it is necessary to adjust or remove, a cutter or cutters, by loosening the nut
or nuts, at the end of the spindle the whole of the cutters may be easily removed or
adjusted as required.
As a modification of the form of cutter herein described the slot at the driving end
of the same instead of being formed at two angles may be made parallel to the line
of radius for the whole of its length.
In placing or fitting a cutter so constructed on to the bush, the slotted end of
the cutter is passed or forced onto the squared part of the body of the bush in one
direction only.
The nature of my Invention will be better understood on reference to the Sheet of
Drawings (No. 1) left with my Provisional Specification and to the accompanying
sheet of drawings (No. 2) in which, on Sheet 1.
Fig. 1, is the specially formed cutter.
Fig. 2 is a front elevation and
Fig. 3, is an end elevation of the specially constructed appliance called the
bush.
Figs. 4 and 5, are sections of the same shewing two forms in which they may be
turned hollow on their faces.
Fig. 6, is an elevation of the cutter placed in position on the bush, and
Fig. 7 is an end view of the same.
Fig. 8, shews the end of the driving spindle with four cutters, four bushes, and a
washer placed in position and screwed up tight with nut and lock nut, and on
Sheet 2,
Fig. 9, is the modified form of cutter which may be used in combination with the
other specially constructed appliances in a like manner to that already described for
the cutter illustrated in Fig. 1.
The same letters refer to similar parts throughout the several views:
a is the cutter or cutters, 6, 6, is the slot formed at two angles or otherwise, cis
the collar or collars of the bush, d is the body of the bush, e is a portion of the
driving or cutter shaft of a machine, f being a fast collar on the same, is the hollow
faced washer, h, is the nut by which the cutters and bushes are tightened upon the
spindle, and is a lock nut for securing the same.
Having now particularly described and ascertained the nature of my Invention
and in what manner the same is to be performed I declare that what I claim is :-
(1) In machines for cutting and mincing meat and the like purposes. The specially
constructed cutter or cutters in combination with the specially constructed appliance
or appliances called the bush or bushes and the arrangement and combination of
parts by means of which the knives or cutters of such machines may be fitted, fixed,
secured or adjusted on to or removed from the driving or cutter spindle, substantially
as herein described and illustrated.
Dated this 20th Jove of Artahan 1807