Improvements in Preparing Rubber and analogous Raw Materials for Sale, and in Machinery therefor.
Year: 1895

page_text: Date of Application, 24th Oct., 1895
Complete Specification Left. 29th May, 1896-Accepted, 25th July, 1896
PROVISIONAL SPECIFICATION.
Improvements in Preparing Rubber and analogous Raw Materials
for Sale, and in Machinery therefor.
I, LOUIS SGAL, of 33, King Street, Liverpool, India Rubber Merchant, do hereby
declare the nature of this invention to be as follows
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This invention relates to improvements in preparing rubber and analogous raw
materials for sale, by slicing, splitting or cutting such materials so as to facilitate
inspection thereof, and in machinery therefor.
Where it is required to slice the article under treatment, I provide a knife
arranged horizontally upon a bench A to-and-fo horizontal or slicing motion is
given to the knife by connecting it, by means of a connecting rod, with a crank
or disc mounted on a shaft to which rotary motion is imparted by a belt pulley
or other gearing
The knife is pivotted to a block travelling in guides on the
bench, and is normally beld away from the bench or cutting block by a spring or
counterbalance weight, and is brought down onto the article to be sliced by a foot
lever connected to the knife by a suitable rod or chain connection. A pivotted
lever is also preferably provided, by which the substance being sliced is held
steadily. A suitable guard covers the knife and protects the operator. The edge
of the knife may be platu, serrated or corrugated A receptacle contaming water
may be arranged to supply a drip onto tho substance being cut.
Where the substance under treatment requires to be split, or an incision made
into it, I provide a knife arranged vertically and working in gundes, like a guillotine!
The pieces of substanco to be split are fed seriatim from a shoot provided with
spring actuated slide which allows one piece at a time to drop into a revolving
roller or cutting block provided, circumferentially, with slots or chambers to receive
them. The spring slide and revolving roller or block are actuated by suitablo
lever and tappet mechanism connected with the lifting and lowering gear of the
kuite in such a manner that one chamber of the roller containing one article to be
split comes under the knife at each descent, another piece of the article being
meanwhile fed into the chamber immediately following. The split article is
discharged by the revolving roller into a suitable receptacle. In a modification
the feed shoot may feed the articles to be split, one by one, into a fixed trough
under tho knife, the split article being ejected therefrom by a spring pusher which
Is actuated by a cam which is geared with the raising and lowering mechanism of
the knife.
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In a modification of the slicing machinery above described, the cutting block
upon which the article being sliced rests, may be arranged to be fed forward n
distance equal to the thickness of a slice, periodically, by gearing connected with
the shaft which operates the knite
Dated this 93rd dor of Databox 1908

page_text: Improvements in Preparing Rubber and analogous Raw Materials
for Sale, and in Machinery therefor.
I, LOUIS SGAL, of 33, King Street, Liverpool, India Rubber Merchant, do hereby
declare the nature of the said 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 preparing rubber and analogous raw
materials for sale, by slicing, splitting or cutting such materials so as to facilitate
inspection thereof, and in machinery therefor
India rubber as imported in the raw state is made up in lumps or is twisted as
a "spool" and it frequently happens that such lumps contain stones or other
foreign natter, and that such spools have a core of wood or the like, whereby the
buyer is defrauded.
To, obviate these objections I cut such lumps of rubber into slices, and I split
or gash the spools, by machinery hereafter described, to lay bare their interior.
'
To slice a lump of rubber the machine shewn in side view in Fig 1. and in
plan in Fig. 2 is used. A. A are knives working on a bonch B. A to-and-fro
slicing motion is given to the Loives by the rods CC, and discs DD, mounted on the
shaft E. The shaft E is rotated by the belt F and fixed pulley f,f being a loose
pulley. The hufe hafts A'A' are pivotted to the blocks GG, travelling in
guides g on the bench B, and are held away from the cutting blocks b by the
weights H H. on the foot levers JJ which latter are connected with the knife
hafts A¹ A' by the rods K K Foot plates on the levers J J enable the machinists
to bring down the knives onto the lump being sliced Hand lovers LL pivottod
at 11 hold the lumps steady as they are being sliced. The knives are guarded by the
hoods a a.
Water is supplied to the knives by reservoirs M disposed above each
Shoots N receive the slices cut from the lumps of rubber
hood a
Fig 218 a side view, and Fig. 2B a font view, shewing the cutting block b
arranged to be fed forward automatically 6's a rack on the block b, which meshes
with the tooth wheel 62 rotated by the ratchet &, pawl 6' and lover 65 coupled by the
rod to the foot lever J. Each time the knife A rises, the block bis fed forward
the thickness of a slice. When the lump is sliced, the block b is returned by the
crank, the pawl & being held out of gear by the handle 7,8
To split or gash spools of twisted rubber the machine shewn in Fig. 3 (side view)
Fig. 4 (ont view) and Fig. 5. (plan) is used, in which the knife A has a guillotine
motion. The knife-holder A works on guides g on the machine fraine, and is
coupled by the rod C. to the disc D. mounted on the shaft E rotated by the
wheels E, shaft E' and pulley, being a loose pulley The spools of rubber X
are fed serratum from the hopper P into the slots in the roller Q, and are split
or gashed by a descent of the knife A Fig 6 (side view) and Fig. 7. (plan) are
detail views on a larger scale The bottom of the hopper P is inclined and
terminates in a trough, the bottom p² of which forms part of a frame p to which
a to-and-fro motion is imparted by the side rods p, bell crank lever p³ (Figs. 3-5)
rod and box cam p' on the shaft E, and the spring p. The slide p covers the
trough plus the frame p³ moves forward, by which means the spools X are fed
sertatim from the hopper P. The spring po affords the slide p' an amount of play in

page_text: the frame ps and the latter is mounted on springs ", which permit of an occasionally
large spool being passed through the trough pl.
The roller is rotated by the skew wheel e, on the shaft E, skew wheel e' on the
shaft e, disc e, rod e', lever e pawl e and ratchot e' on the rollor Q The roller Q
and hopper frame p³ operate synchronously, so that a spool X is fed into each slot q
as the roller Qrevolves. The detent R pivotted to the bed B and coupled by the
rod r to a box cam 7 on the shaft E, arrests the roller Qas the knife A descends.
The blades R¹ eject split spools from the roller as it revolves. The bottom of the
grooves may be inlaid with india iubber.
In Fig. 8 (side view), Fig. 9 (plan), Fig. 10) (front view) and Fig 11 (plan).
is shewn a portion of the machine shewn in Figs. 3-5, provided with a modified
arrangement of cutting block and feeding device In these figs a slide S 15-
substituted for the roller Q Said slide has a troughs into which spools of
rubber X are fed seriatum from the shoot T When a spool is split or gashed by
a descent of the knife A. the slide S is displaced longitudinally by the cam
striking the pins in the yoke 8 on the slide S. In this movement the split
spool is pushed by tho ejector so that it falls through the hole s into a receptacle
beneath. Continuing to revolve, the cam releases the pin 2, and the spring 86-
returns the slide S to its former position. The cam s mounted on the shaft 13
rotated by the chain wheel u', chain us, and chain wheel on the shaft E
spools X are fed seratim from the shoot T by the shutters tt carried in the pivotted
frame, to which an up-and-down motion is imparted by the bell-crank lover t",
wiper on the 1od C, and spring t. A blade s serves to clear adhering spools from
the knife A.
The
It must be understood that although I have herein more particularly referred to
india rubber as the substance under treatment, the invention is equally applicable
to analogous substances which in the raw state are prepared or got up in a similar
manner to india rubber
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim 15.-
1 The method of preparing raw india rubber or analogous raw material for sale,.
by slicing, splitting or gashing it in the manner herein described and illustrated
in the drawings
2 The combination in a machine for slicing raw india rubbo or analogous raw
materials in the lump, of a knife A, carried by a slide G to which a to-and-fro
motion is imparted by a rotating disc D, through the rod C, a weighted foot lever J
coupled to the knife haft A' by a rod K, by which said knife is held away from
and brought down onto the substance being ent at will, and a water reservoir M
adapted to keep said knife wet, as described with reference to Figs 1. and 2 of
the drawings.
3. The combination with a machine as specified in Claim 2. of a self feeding
cutting block 6 operating in the manner described with reference to Figs. 24 and 2B
of the drawings.
4. The combination in a machine for splitting or gashing spools of twisted india
rubber or analogous substanco similarly prepared, of a kuite A having a guillotine
motion, and a slotted roller Q forming a rotary cutting block which receives said
spools of rubber or other substance as they are fed seriatum from a hopper P whose
outlet p is controlled by a frame p³ operated synchronously with the revolution of
said roller; as described with reference to Figs. 3 to 7 of the drawings
5. The combination in a machine for splitting or gashing spools of twisted india
rubber o analogous substance similarly prepared of a knife A having a guillotine
motion, and a sliding cutting block S. provided with an aperture & and ejector &*,
and operated by a cam s' and spring s", which slide receives said spools of rubber or
other substance as they are fed serratim from the shoot T, whose shutters tt are

page_text: controlled by the lever operated by the machine and the spring t₁; as described
with reference to Figs. 8 to 11 of the drawings.
.
Dated this 28th day of May 1896
J. A. COUBROUGH,
Registered Patent Agent, -
10 St. George's Crescent, Liverpool, Agent for the Applicant.