Improvements in Machines for Cleaning and Polishing Knives.
Year: 1894

page_text: Date of Application, 9th June, 1894
Complete Specification Left, 8th Mar., 1895-Accepted, 13th Apr., 1895
PROVISIONAL SPECIFICATION.
Improvements in Machines for Cleaning and Polishing Knives.
I, ERNEST JEAN BAPTISTE NAUTRE, of 26 Boulevard de Strasbourg, Paris, in
the Republic of France, Manufacturer, do hereby declare the nature of this
invention to be as follows:-
My invention relates to a machine for cleaning and polishing knives, which is
characterized by a special adjusting device enabling the distance between the
polishing discs to be varied at will.
-4.
In order that my invention may be clearly understood I have represented a
machine constructed according to the same in the accompanying drawing.
Figure 1 shows a vertical section of this machine on the line 1-2-3-
Figure 2 is a horizontal section on the line 5-6.
Figure 3 is a transverse section on the line 7-8.
The polishing discs are constituted by a roller a covered by a crown 6 of
indiarubber surrounded in turn by a layer c of leather or other suitable material.
The crown of indiarubber is fastened upon the roller a by means of small
nipples arranged upon the periphery of the roller a and engaging with this
crown.
The polishing discs, which turn in a trough e, are keyed upon the shafts /carrying
at their extremities the toothed wheels g h which gear together, and one of which,
for example g, carries a sleeve i for receiving the crank j.
As shown in Figure 2 the brackets k which support the shafts are arranged
interiorly so as to enable these shafts to assume different inclinations yet remain
in the horizontal plane, for the purpose of varying the distance between the
polishing discs.
The shafts traverse the movable bearings which can be displaced upon the
These
plane part m of the machine frame under the action of the pressing screw n.
inovable bearings are guided in their displacement by the projections o. By
turning the milled knobs-p in the proper direction the extremity of the screws
pressing upon the bearings will cause these latter to be displaced, carrying away
at the same time the shafts f, consequently the polishing discs will be brought nearer
together.
The screws have their threads in opposite directions so that both hands act alike.
It is evident that the screws, instead of being placed exteriorly, may be
arranged interiorly, either independently of each other or connected together by
any suitable device enabling the two screws to be acted upon at the same time by
one hand.
My improved machine may comprise a greater number of polishing discs
according to the uses for which it is designed.
This adjusting device is very simple and enables the polishing discs to be easily
replaced in case of need.
The movable bearings I have openings 9 corresponding to the holes provided
in the upper part of the bearings for the introduction of the lubricating
material.
In order to prevent dust from rendering the bearings and shafts dirty these
orifices may be provided with a plug s.

page_text: It is evident that the shafts ƒ may be lubricated by any other appropriate
means.
Dated this 9th day of June 1894.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
Improvements in Machines for Cleaning and Polishing Knives.
I, ERNEST JEAN BAPTISTE NAUTRE, of 26 Boulevard de Strasbourg, Paris,
in the Republic of France, 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 :-
My invention relates to a machine for cleaning and polishing knives, which is
characterized by a special adjusting device enabling the distance between the
polishing discs to be varied at will.
In order that my invention may be clearly understood I have represented a
machine constructed according to the same in the drawing left with my Provisional
Specification and in the drawing filed herewith in which,
Figure 1 shows a vertical section of this machine on the line 1-2-3-4 of
Figure 2.
Figure 2 is an horizontal section on the line 5-6 of Figure 1.
Figure 3 is a transverse section on the line 7-8 of Figure 1.
Figure 4 is an elevation of a modified form of apparatus, partly in section on the
line 1-2 of Figure 5.
Figure 5 is a plan of the same and
Figure 6 is a section showing how the polishing discs are mounted.
Similar letters of reference designate corresponding parts in all the figures of the
drawings.
Referring to Figures 1 to 3 the polishing discs are constituted by a roller a
covered by a crown b of indiarubber surrounded in turn by a layer c of leather or
other suitable material.
The crown of indiarubber is fastened upon the roller a by means of small
nipples arranged upon the periphery of the roller a and engaging with this
crown.
The polishing discs, which turn in a trough e, are keyed upon the shafts f
carrying at their extremities the toothed wheels gh which gear together, and one
of which, for example g, carries a sleeve i for receiving the crank j.
As shown in Figure 2 the brackets k which support the shafts are arranged
interiorly so as to enable these shafts to assume different inclinations yet remain in
the horizontal plane, for the purpose of varying the distance between the polishing
discs.
The shafts traverse the movable bearings which can be displaced upon the
plane part m of the machine frame under the action of the thumb screw n.
These movable bearings are guided in their displacement by the projections o.
By turning the milled heads p in the proper direction the extremity of the screws
pressing upon the bearings will cause these latter to be displaced, carrying away
at the same time the shafts f, consequently the polishing discs will be brought
nearer together.
The screws have their threads in opposite directions so that both hands act alike.
. It is evident that the screws, instead of being placed exteriorly, may be
arranged interiorly; either independently of each other or connected together

page_text: by any suitable device emoning the two screws to be acted upon at the same time
by one hand.
The above described adjusting device is very simple and enables the polishing
discs to be easily replaced in case of need.
"
The movable bearings have openings 9 corresponding to the holes provided
in the upper part of the bearings for the introduction of the lubricating
material.
In order to prevent dust from rendering the bearings and shafts dirty these
orifices may be provided with a plug s.
It is evident that the shafts
means.
may be lubricated by any other appropriate
Although I have herein described my machine as having only two discs I wish
it understood that the said machine may comprise any number of polishing discs
according to the uses for which it is designed.
In the apparatus shown in Figures 45 and 6 I have shown by way of example
a mode of adjustment adapted for use when two pairs of polishing discs are
employed.
In this form of apparatus the two pairs of polishing discs are mounted
respectively on the shafts ff; the shaft turns simply in its bearings k¹ which
are fixed; the shaft on the contrary is adapted to be moved further away from
or closer to the shaft f¹ so as to vary the distance between the polishing dises.
For this purpose the bearings of this shaft can slide upon a plane part m with
which the frame of the apparatus is provided on its two faces.
These bearings are guided in their movement by a projection or simply by a
screw o fixed to the lower part of each bearing, which is displaced in the guide slot
formed in each of the plane surfaces m.
These displacements are obtained by the aid of a screw n as above described.
The movable bearings are cast at the extremity of a bow piece E having a
collar E' screw threaded interiorly forming a nut through which passes the
operating screw n.
This screw whose extremity engages the frame of the apparatus will cause the
bow-piece E to advance or recede and consequently also the bearings k³ according
as it is turned in one or the other direction.
The shafts upon which the polishing discs are keyed carry each a bevel
pinion 91 gearing with the pinions 9 9 mounted upon the operating shaft A; the
pinion g³ is keyed upon this shaft, the pinion gt is also moved by the shaft A in its
rotary movement, but is adapted to be displaced along this shaft so as not to interfere
with the movement of the shaft f.
In these several displacements it must be constantly kept in gear with the
pinion g; for this purpose the bow-piece E carries an arm B which presses this
pinion 9 against the pinion g*.
At one of the extremities of the shaft A is keyed a hand wheel V for operating
the apparatus.
The polishing discs may advantageously be constructed entirely of felt. The
crowns of felt are mounted upon a sleeve C keyed upon the shafts f₁f presenting
two cheeks D cast in one piece with this sleeve, against which the said crowns are
applied; these cheeks D possess small projections F designed to prevent the crowns
of felt from turning upon their axes; the latter are held upon the other face by a
disc G screwed upon the sleeve.
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 :-
First. A machine for cleaning and polishing knives, characterized by the device
for adjusting the polishing discs substantially as herein before described with reference
to the drawings and for the purpose specified.

page_text: Second. The improved adjusting device adapted for use in machines for cleaning
and polishing knives, having two pairs of polishing discs, substantially as herein-
before described with reference to the drawings and for the purpose specified.
Dated this 8th day of March 1895.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.