Improvements in Machines Employed in Cutting Out Rubber or the like Washers, Discs, or other Blanks.
Year: 1899

page_text: Date of Application, 5th June, 1899
Improvements in Machines Employed in Cutting Out Rubber
or the like Washers, Discs, or other Blanks.
We, JOSIAI GIMSON and the Firm of GIMSON AND COMPANY (LEICESTER)
LIMITED, The Engine Works, Vulcan Road, Leicester, in the County of Leicester,
Engineers, do hereby declare the nature of this invention to be as follows:-
-
This invention relates to improvements in machines employed in cutting out
rubber or the like washers, discs or other blanks made from hollow or solid
bars or tubes of any suitable diameters, and may include such materials as leather,
felt or other fibrous substance or substances from which it is desired to produce
slices of any predetermined width for obtaining rings, washers or pads, or blanks
of the material of whatever section desired.
The principal object of this invention consists mainly in effecting an increased
output of the machine. In arranging the feed and brake mechanism that they
will, in combination with a swiftly revolving circular cutter enable the articles
to be produced with greater accuracy and at the same time provide a rapid
predetermined adjustment for the required width of the blanks of any desired
section of the material that may be employed.
Also feeding the circular or other section pipe, tube or bar through a centrally
disposed sleeve in a reciprocating or sliding carriage passing by and in front of
a quickly rotating cutter set at right angles thereto.
And further a cam motion imparted to the said sliding carriage to give it a
differential back and forward stroke so that at the time of cutting it traverses
at the necessary speed as may be desirable.
To carry out this invention the machine is constructed with suitable bearings
on a suitable base in which is fitted a short shaft carrying small fast and loose
pulleys in the centre to impart a high speed to the circular cutter fixed at the
inner end thereof, said cutter runs within a water trough open at one side to
enable the sleeve carrying the material to be cut or sliced to come in close contact,
or proximity to the cutting edge of the circular revolving knife.
At right angles to the cutter and cutter bearings are the bearings having
fixed spindles parallel to each other, or slide rods carrying the reciprocating or
sliding carriage. The said reciprocating or sliding carriage is provided with two
vertical feed rolls shaped to the outer periphery of the article or material to be
fed into the sleeve and has teeth upon the outer edge of such shaped portions to
grip and carry the material into and through the centrally disposed sleeve coming
to the front of the said sliding carriage. Said sleeve is adjustable in the direction
of its length to and from the revolving cutter, as may be desired. Attached to the
top of one of the vertical feed rolls is a feed regulating device, consisting of a
rotating wheel upon the under-side of which are clamps for intermittently
gripping a ring flange set out from the said wheel, loosely connected to said
clamps is a small lever, pivoted to said wheel, the outer end of said lever being
attached to a spiral spring having its other end secured to a pin upon the
reciprocating or sliding carriage end. Around the said wheel is adjustably fitted

page_text: a suitable band brake to hold the wheel steady and prevent any backward move-
ment thereof.
To obtain the reciprocation or sliding movement of the said carriage a rod is
employed adjustably connected to one end of the carriage, and at the other end
a cam is formed upon a flat plate, and into one side of the cam is a bowl and pin
connected excentrically to a rotating dise fitted on to the end of a shaft which
obtains its movement from the cutter shaft through the necessary gears employed
to reduce the speed or reciprocation of the sliding carriage and feed mechanism
therein contained.
Rigidly connected to the frame of the machine is an adjustable screw one end
of which serves to give movement to the clamp lever and thus rotates or regulates
the reciprocation of the feed wheel and also determines the feeding in of the
material.
Improvements in Machines Employed in Cutting Out Rubber
or the like Washers, Discs, or other Blanks.
We, JOSIAH GIMSON and the Firm of GIMSON AND COMPANY (LEICESTER)
LIMITED, The Engine Works, Vulcan Road. Leicester, in the County of Leicester,
Engineers, 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:-
-
This invention relates to improvements in machines employed in cutting out
rubber or the like washers, discs or other blanks made of hollow or solid
bars or tubes of any suitable diameters, and include such materials as leather,
felt or other fibrous substance or substances from which it is desired to produce
slices of any predetermined width for obtaining rings, washers or pads, or blanks
of the material of whatever section desired.
In order that this invention may be clearly understood a sheet of drawings is
annexed in which:
Figure 1 is a top plan view of the machine, and Figure 2 and end view of same
showing more particularly the feed and brake mechanism.
The water trough is not included so that the cutter and cutter bearings can be
exposed.
The principal object of this invention consists mainly in effecting an increased
output of the machine. And so arranging the feed and brake mechanism that they
will, in combination with a swiftly revolving circular cutter enable the articles
to be produced with greater accuracy and at the same time provide a rapid
predetermined adjustment for the required width of the blanks of any desired
section of the material that may be employed.
Also feeding the circular or other section pipe, tube or bar a through a centrally
disposed sleeve A in a reciprocating sliding carriage B passing by and in front
of a quickly rotating cutter C set at right angles thereto.
And further a cam motion in the form preferable of an eccentric D which gives
to the said sliding carriage a differential. back and forward stroke so that at the
time of cutting or at the moment the cutter enters the material the carriage is
travelling slower, or traverses the necessary speed as may be found desirable.
In carrying out this invention the machine is constructed having the bear-

page_text: referred to in the foregoing claims with the bearings and shafts and operating
mechanism arranged in the manner and with reference to the accompanying
drawings.
Doted this 3rd day of March 1000
W. BESTWICK MAXFIELD,
Registered Patent Agent, No. 34, Belvoir Street, Leicester,
Applicants Agent.