IMPROVEMENTS IN MACHINERY OR APPARATUS FOR CUTTING CARBON AND OTHER SUBSTANCES
Year: 1884

page_text: I THOMAS JAMES HOWELL, of 29 Basnett Grove, Lavender Hill, Battersea,, in
the County of Surrey, Engineer, do hereby declare the nature of my invention
for IMPROVEMENTS IN MACHINERY OR APPARATUS FOR CUTTING CARBON AND
OTHER SUBSTANCES, to be as follows:-
My Invention relates to improvements in machinery or apparatus for cutting
Carbon and other substances, whereby I am enabled to cut various thicknesses
with greater facility than hitherto and in a more perfect manner.
My improved machinery or apparatus consists of a square or oblong square iron
frame, which may be made of any length, width or depth, and is connected at ono
end to a crank shaft the revolution of which gives to this frame a reciprocating
movement. On either side of the frame is a flange which may run on slides,
wheels, rollers or pulleys, or upon any suitable arrangement; these slides, wheels,
rollers or pulleys being suspended by chains or ropes to a cross beam, or beans,
above. The frame may be allowed to rise or fall by means of other ropes or chains
attached to the cross beam or beams, and passing over pulleys, wheels or drums
suspended or fixed above. At the end of these chains or ropes I may attach
weights or ratchets so as to allow of the riso or fall of the frame at will. Inside
of the frame I place two cross bars working in slots made at the side of the frame;
these cross bars carry cutters, which I term knives, made of copper, zinc, iron or of
any suitable metal or metals, and having at their ends holes to receive the said
cross bars; washers or dividing plates or pieces are placed between the knives so as
to keep them at such distances apart as may be required, and the whole of the
knives are then clamped or screwed together. Threaded eye bolts are put on the
cross bars and then passed through holes at one or both ends of the frame so that
the bars may be drawn by means of nuts placed on the bolts which appear through
the end of the frame; and thus the screwing up of these bolts causes the whole. of
the knives to tighten and be kept at the same tension.
Tho working of this machinery or apparatus is as follows:-
I place under the knives one or any number of blocks of Carbon, or any other
substance to be cut, I then set in motion the frame carrying the knives, directing
at the same time, by means of a constant supply of water or of oil, a grit formed
of sand, glass, flint, emery or similar substances, upon the material being cut, so
that, in their reciprocating motion, the knives together with this grit cutting into
the Carbon or other substance divide it as required.
T
1004

page_text: My Invention relates to improvements in machinery or apparatus for cutting
carbon, or other substances whereby I am enabled to cut various thicknesses with
greater facility than hitherto and in a more perfect manner.
My improved machinery or apparatus consists of an Iron frame see (Fig 2
letter F) connected by means, of four ropes or chains, one of which passes from
each corner of the frame, over pulleys or wheels which are suspended or fixed
above (see Fig 2 letter R & P) Thence to a cross beam or shaft & connected
thereto (Fig. 2 letter B).
A drum is fixed to the Shaft or Beam to which is attached a rope or chain, at
one end of which weights or ratchets may be attached or any suitable lever for a
counter balance (see Fig 2 letter D) This overhead gearing is more simple than
any other known form to me, as the frame is balanced on one bearing, which
when allowed to revolve, causes the whole of the chains or ropes to rise and fall
equally.
Inside of the frame I place two cross bars working in slots made at the side of
the frame, these cross bars carry cutters, which I term knives (see fig 4) made of
Copper, Zinc, Iron, or of any suitable metal or metals, and having at their ends
holes to receive the said cross bars-Washers or dividing plates, or pieces are placed
between the knives so as to keep them at such distances apart as may be required,
and the whole of the knives are then clamped or screwed together Threaded eye
bolts are put on the cross bars and then passed through holes at one or both ends of
the frame, and thus the screwing up of these bolts causes the whole of the knives to
tighten and be kept at the same tension-By placing the knives in this position, I am
enabled to cut much thinner substances, and with greater accuracy as the knives
are kept in better position while at work-Fig. 3 is another view of the Frame.
The working of this Machinery or Apparatus is as follows-I place under the
knives one or any number of blocks of carbon or any other substance to be cut-
I then set in motion the frame (which is connected at one end to a crank shaft-
the revolution of which gives to it a reciprocating movement) carring the knives,
directing at the same time by means of a constant supply of water or of oil, a grit
formed of sand glass, flint, emery or similar substances, upon the material being
cut so that in their reciprocating motion, the knives together with this grit
cutting into the carbon or other substance divide it as required.

page_text: "Having now particularly discribed and ascertained the nature of my said
Invention, and in what manner the same is to be performed I declare that what
I claim is "
First
frame.
The overhead gearing, as and for the purpose described, in a horizontal
Secondly-The Bar passing through, the slotted knives or cutters with dividing
pieces.
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100