Year: 1897

page_text: Date of Application, 12th June, 1897
Complete Specification Left, 4th Mar., 1898-Accepted, 9th Apr., 1898
Purposes.
•
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, do hereby declare the
nature of this invention to be as follows:-
This invention has relation to machines for manufacturing carbons for use in
various electrical appliances, and has for its object the formation of carbons of
great and even density, and doing this work most expeditiously.
In carrying out my invention, I desire to compress the carbons on all sides with
an equal pressure until the carbon is of sufficient density throughout, and then
deliver it to a carrier whereby it may be removed and dried. I have found that
the best results may be obtained by employing a cylinder or hopper, suitably mounted
on a frame and provided with heads. The cylinder is provided with an aperture
through which the material of which the carbon is formed, may be delivered
therein. This aperture may be closed by a suitable cap or cover fastened in place
by screws or bolts and provided with a valve.
The plunger is operated by means of a rod secured to the end of the piston rod
of a powerfully-acting hydraulic engine or other power generating device.
Through the rear cylinder head, I pass the threaded ends of a series of com-
pression tubes each of which is provided with a hollow cap screwed upon an inwardly
projecting end thereof, forming an enlarged chamber. The caps have a series of
six, eight, or more radial apertures through which the material may be forced into
the above mentioned chamber and thence into the hollow compression tubes.
In parallel guides upon the cylinder, I mount sliding side bars, having an end
bar or abutment, which has apertures registering with the aforesaid hollow tubes.
These side bars are arranged to slide back and forth so as to move the end bar or
abutment towards and from the compression tubes. This is accomplished by means
of toggle-levers arranged on each side of the cylinder.
The outer end of each toggle-lever is pivoted, by means of a threaded bolt to the
front end of the side bar while the opposite end of toggle-lever is pivoted to a boss
on the cylinder, by means of a threaded bolt passing through a block in a slot at
the end of the lever, this block being adjustable relatively to the lever by means
of an adjusting screw.
An eccentric rod is pivoted to the pivot bolt of the toggle-levers and secured at
its other end to an eccentric strap passing around an eccentric on the main driving
shaft. Preferably, the eccentric rod is bifurcated at its upper end so as to provide
two arms passing outside the toggle-levers.
It will be understood that as main shaft is rotated, the eccentric will cause the

page_text: rod to rise and fall, and move the cross bar or abutment on the slide bar away from
and toward the compression tubes.
In order to close the compression tubes while the material is being compressed
therein, I employ a vertically sliding plate which is mounted in vertical bars
extending from a cross bar and provided with apertures.
The vertical bars slide in guides in the aforesaid sliding side bars, the frames
(consisting of the vertical bars, plate and cross bar) being reciprocated vertically
by means of a rod held in guides on a bracket on the frame. The rod has a roller
on the end thereof, travelling in a cam slot in a disk on a horizontal shaft.
The said horizontal shaft being provided with a bevelled wheel meshing with
a similar beveled wheel on the main driving shaft.
The above mentioned rod is forked at its ends so as to provide two ears to receive
between them an ear on the cross bar. The said ears are all connected together by
a pin passing through apertures in the ears and through the horizontal slot in the
ear on the cross bar so that when the side bars are reciprocated, the said cross bar
may have a limited movement relatively to the rod.
Angular brackets extend out from the rear end of the machine to which is
bolted a cross bracket upon the end of which are journal shafts. Upon the ends
of the said shafts are secured sprocket wheels which support and drive parallel
sprocket chains, the links of which are provided with inwardly projecting lugs or
attachments adapted to receive and loosely support a corrugated plate or tray.
The chain receives its power from a sprocket wheel secured to one of the afore-
said shafts and driven by a chain from a sprocket wheel mounted upon a shaft
journaled in supports secured to the abovementioned brackets.
Upon this shaft is secured a star-wheel. On the end of the shaft, I mount a
disk which has an outwardly projecting triangular pin which will impinge upon
one of the teeth of the star wheel and move it forward, onė tooth for each revolution
of the disk. The main driving shaft is operated by means of a hand wheel, which
can be rotated to as great an extent as desired by the operative. The hub of the
wheel is provided with a wrist pin which is connected by rod with the valve of the
hydraulic cylinder herein before mentioned.
The operation of the machine is as follows:-
Gas-coke, sulphuric acid, treacle, and graphite, in the proportions desired, are
placed into the cylinder through the aperture (the piston being in front thereof)
and the cap is secured in place by bolts. The wheel is turned sufficiently to slide
the valve in the hydraulic cylinder to the desired extent by means of the pin and
rod to cause the piston to force the material toward the rear end of the cylinder
and into the compression tubes.
At this time the vertically 'plate sliding is at its highest possible point and the
end bar or abutment holds it against the compression tubes.
The hydraulic engine forces the piston forward with as great pressure as may
be desired until the carbon material in the compression tubes has reached the
proper density. Then the wheel is turned far enough to draw the rod downward
thereby forcing the side bars forward.
As soon as this is accomplished, the parts are so timed that the rod is forced by
means of the cam and the roller to draw the vertically sliding plate down far enough
so that the apertures in the said plate register with the apertures in the compression
tube and the aperture in the end bar of abutment.
The hydraulic engine is again actuated, when the parts are in this position, and
the piston is driven forward until the carbon is forced out of the compression tubes
on to the corrugated tray. The operative then turns the wheel again sufficiently
to cause the plate to rise (cutting off the carbon) and to cause the toggle-levers to
draw the abutment tightly against the plate and against the compression tube so
as to resist the next compression of the carbon.
The parts are all so timed that when the wheel has made one complete revolution,
the carbon will have been compressed by the piston in the compression tubes, the
plate and the end bar will have been moved so as to allow a further movement of

page_text: the piston to deposit the carbon upon the tray and then move back into place, and
the tray will have been moved forward by its chain so that when the carbons are
again ejected, the next adjacent groove will be ready for them.
Thus it will be seen that I provide a plate to close the ends of the compression
tubes which at the same time, operates as a cut-off to cut off the material when a
certain amount has been ejected from the tubes. And I also provide an abutment
which holds the said plate against the tubes and which is of sufficient strength to
stand a tremendous pressure. If this ond bar or abutment were rigid, it would be
impossible to slide the plate up and down to allow for the ejecting of the carbons
and, therefore, it is provided with means whereby it may be moved horizontally
far enough to free the plate from pressure.
It will be understood that I do not limit myself to the details hereinbefore
described. For instance, the means for automatically shifting the valve of the
hydraulic engine as described consists of a pin and rod but a pin travelling in a
cam slot so timed as to operate the valve at the proper instant may be employed.
By means of a step-by-step movement which is given to the sprocket chains,
I am enabled to advance the corrugated tray just far enough so that when the next
carbon is ejected, the groove will be ready to receive it.
I provide for forming either solid or tubular carbons. In order to form a tubular
carbon, I employ a rod or core threaded into the cap and lying in the axis of the
tube, while to produce a solid carbon the rod is dispensed with. But in such case,
I prefer to reduce the bore of the tube, at several points throughout its length,
so that when the material is forced from the chamber into the tube, it will be
compressed.
In rovements in Machines for Making Carbo..s for Electrical
Purposes.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, S. uthampton Buildings, in the County of Middlesex, 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 has relation to machines for manufacturing carbons for use in
various electrical appliances, and has for its object the formations of carbons of
great and even density, and doing this work most expeditiously.
In the accompanying drawings
Figure 1 is a side elevation of one form of machine embodying my invention.
Figure 2 is a rear elevation of the same.
Figure 3 is a vertical central longitudinal section.
Figure 4 is a horizontal section drawn to an enlarged scale.
Figure 5 is a vertical transverse section of the machine.
Figure 6 is a detail of a portion of the power-transmitting devices for removing
the finished carbons, and
Figure 7 illustrates a compression tube employed for making solid carbons.
In carrying out my invention, I desire to compress the carbons on all sides with
an equal pressure until they are of sufficient density throughout, and then deliver
it to a carrier whereby it may be removed and dried. I have found that the best

page_text: results may be obtained by employing a cylinder or hopper a suitably mounted on
a frame b and provided with heads or covers cc. The cylinder is provided with an
aperture d through which the material of which the carbon is formed, may be
delivered. This aperture may be closed by a suitable cap or cover d' fastened in
place by screws or bolts d and provided with an aperture or valve d³.
The plunger e is operated by means of a rod e¹ secured to the end of the piston
rod of a powerfully-acting hydraulic engine (not shown) or other power generating
device.
Through the rear cylinder head, I pass the threaded ends of a series of com-
pression tubes fff, each of which is provided with a hollow cap f screwed upon an
inwardly projecting end thereof, forming an enlarged chamber ft. The caps have
a series of six, eight, or more radial apertures fa through which the material may be
forced into the chamber ft and thence into the hollow compression tubes f.
In parallel guides a¹ upon the cylinder, I mount sliding side bars g, having an
end bar or abutment g', which has apertures registering with the hollow tubes f¹.
These side bars are arranged to slide back and forth so as to move the end bar
or abutment g¹ towards and from the compression tubes. This is accomplished
by means of toggle levers hh arranged on each side of the cylinder as shown in
Figure 4.
The outer end of each toggle-lever h¹ is pivoted, by means of a threaded bolt h²
to the front end of the side bar g while the opposite end of toggle-lever h, is pivoted
to a bossa on the cylinder, by means of a threaded bolt h³ passing through a
block in a slot 5 at the end of the lever, this block h* being adjustable relatively
to the lever h by means of an adjusting screw h6.
the toggle-levers and secured at its other end to an eccentric strap passing around-
i is an eccentric rod pivoted at each side of the machine to the pivot bolt a¹ of
an eccentric on the main driving shaft j. Preferably, the eccentric rod is
bifurcated at its upper end so as to provide two arms passing outside the toggle-
levers as illustrated in Figures 1 and 5.
It will be seen that as the shaft j is rotated, the eccentric will cause the rod i
to rise and fall, and move the cross bar or abutment gl away from and toward the
compression tubes.
In order to close the compression tubes while the material is being compressed
therein, I employ a vertically sliding plate k which is mounted on vertical bars k¹
extending up from the cross bar ², the said plate being provided with apertures ko.
The vertical bars k slide in guides in the side bars 9, the frame (consisting of
the bars ', plate k, and cross bar 2) being reciprocated vertically by means of a
rod held in guides ¹ on a bracket on the frame. The rod has a roller 2 on the
end thereof, travelling in a cam slot m¹ of a cam disc m on a horizontal shaft n.
The said shaft n is provided with a bevelled wheel n¹ meshing with a similar
bevelled wheel on the main driving shaft j.
The rod is forked at its ends so as to provide two ears 13 to receive between them
an ear ³ on the cross bar k². The said ears are all connected together by a pin 4
passing through apertures in the ears 3 and through the horizontal slot in the
ear so that when the side bars g are reciprocated, the said cross bar may have a
limited movement relatively to the rod 1.
oo indicate angular brackets extending from the rear end of the machine to
which is bolted a cross bracket upon the end of which are journalled shafts g.
Upon the ends of the said shafts are secured sprocket wheels q¹ which support
and drive parallel sprocket chains r, the links of which are provided with inwardly
projecting lugs or attachments adapted to receive and loosely support a corrugated
plate or trays.
The chain receives its power from a sprocket wheel secured to one of the
shafts and driven by a chain t¹ from a sprocket wheel 2 mounted upon a shaft 3
journaled in supports secured to the brackets o.
Upon the shaft 3 is secured a star-wheel u. On the end of the shaft n I mount

page_text: a disc n which has an outwardly projecting triangular pin n³ which will impinge
upon one of the teeth of the star wheel u and move it forward, one tooth for each
revolution of the disc * The main driving shaft j is operated by means of a hand
wheel y which can be rotated to as great an extent as desired by the operator.
The hub of the wheel is provided with a wrist pin which is, connected by a rod
with the valve of the hydraulic cylinder hereinbefore mentioned but not shown.
The operation of the machine is as follows:
Gas-coke, sulphuric acid, treacle, and graphite, in the proportions desired, are
placed in the cylinder a through the aperture d (the piston being in front thereof)
and the cap d' is secured in place by bolts . The wheel v is turned sufficiently
to slide the valve in the hydraulic cylinder to the desired extent by means of the
wrist pin and rod to cause 'the piston to force the material toward the rear end
of the cylinder a and into the compression tubes f.
At this time the plate k and the end bar or abutment g¹ are in the relative
positions shown in Figure 3, that is to say, the plate k is at its highest possible
point and the end bar or abutment g¹ holds it against the compression tubes f as
shown in Figure 4.
The hydraulic engine forces the piston e forward with as great pressure as may
be desired until, the carbon material in the compression tubes f has reached the
proper density. Then the wheel vis turned far enough to draw the rod i downward
thereby forcing the side bars g forward.
As soon as this is accomplished, the parts are so timed that the rod is forced
by means of the cam and the roller 18 to draw the plate k down far enough so that
the apertures 6 in the said plate register with the apertures in the compression
tube and the apertures in the end bar or abutment g¹.
The hydraulic engine is again actuated, when the parts are in this position,
and the piston e is driven forward until the carbon is forced out of the compression
tubes on to the corrugated tray s. The operator then turns the wheel y again
sufficiently to cause the plate k¹ to rise into the position shown in Figure 3 (cutting
off the carbon) and to cause the toggle-levers to draw the abutment g¹ tightly
against the plate and against the compression tube f, so as to resist the next com-
pression of the carbon."
The parts are all so timed that when the wheel v has made one complete revolu-
tion, the carbon will have been compressed by the piston e in the compression
tubes, the plate k and the end bar g will have been moved so as to allow a further
movement of the piston e to deposit the carbon upon the tray and then move back
into place, and the tray will have been moved forward by its chain so that when
the carbons are again ejected, the next adjacent groove will be ready for them.
Thus it will be seen that I provide a plate k to close the ends of the compression
tubes which at the same time operates as a cut-off to cut off the material when a
certain amount has been ejected from the tubes. And I also provide an abut-
ment g which holds the said plate k against the tubes and which is of sufficient
strength to stand a tremendous pressure. If this end bar or abutment g¹ were
rigid, it would be impossible to slide the plate k up and down to allow for the
ejecting of the carbons, and, therefore, it is provided with means whereby it may
be moved horizontally far enough to free the plate k from pressure.
It will be understood that I do not limit myself to the details herein before
described and shown in the drawings. For instance, the means for automatically
shifting the valve of the hydraulic engine consists as herein described of a pin and
rod but I may employ instead thereof a pin travelling in a cam slot so timed as to
operate the valve at the proper instant.
By means of a step-by-step movement which is given to the sprocket chains r,
I am enabled to advance the corrugated trays just far enough so that when the
next carbon is ejected, the groove will be ready to receive it.
In order to form a
I provide for forming either solid or tubular carbons.
ubular carbon, I employ a rod or core w threaded into the cap and lying in the

page_text: axis of the tube as shown in Figure 3, while to produce a solid carbon the rod is
dispensed with as shown in Figure 7. But in such case, I prefer to reduce the bore
of the tube, at several points throughout its length, so that when the material is
forced from the chamber f* into the tube, it will be compressed.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, as communicated to
me by my foreign correspondent, I declare that what I claim is:
1. A. machine for making carbons, comprising in its construction, a hopper or
cylinder for receiving the material, one or more compression tubes leading from
said hopper or cylinder, and having evenly disposed radial apertures to receive the
material therein for compression, substantially as set forth.
2. A machine for making carbons, comprising in its construction, a compression
tube, means for forcing material therein through one end thereof and compressing
it therein, a movable plate for closing the other end, and a movable abutment for
holding the plate against the tube and resisting the pressure of the compressing
means, substantially as set forth.
3. A machine for making carbons comprising in its construction a compression
tube, a cylinder or hopper, and an apertured chamber interposed between the
cylinder and the tube, and means for forcing the material from the cylinder into
the chamber, and into the tube, substantially as set forth.
4. A machine for making carbons comprising in its construction a cylinder or
hopper, a compression tube leading from said cylinder or hopper, a core or rod
extending into said tube, and a radially apertured cap on the inner end of said tube
for supporting said rod.
5. A machine for making carbons comprising in its construction a cylinder or
hopper, a reduced open-ended compression tube leading therefrom, a plunger in
said hopper for forcing material into and out from said tube, a cut-off plate for
the outer end of said tube, a movable abutment for said plate, and means for
actuating said plate and said abutment alternately.
1
6. A machine for making carbons comprising a compression tube, means for
forcing material therein through one end thereof and compressing it therein, a
movable cut-off plate, a movable abutment for said plate, a carrier movable trans-
versely of the compression tube, and adapted to receive the finished carbons, and
means for imparting a step movement to the carrier.
Dated this 4th day of March 1898.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.