Improvements in Stone Working Machines.
Year: 1896

page_text: Date of Application, 31st Oct., 1896-Accepted, 5th Dec., 1896
[Communicated from abroad by PAUL KNOPH RÖHR, of Saetre pr Heggedal,,
in the Kingdom of Norway, Manufacturer.]
Improvements in Stone Working Machines.
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 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 stone working machines, and more especially to the
construction and arrangement of cutters and cutter spindles used in such machines
for dressing the surface of the stone or drilling holes in the same in order to
facilitate the dividing of the stone.
In the accompanying drawing
Figures 1 and 2 illustrate a stone dressing machine of the kind to which my
invention relates.
Figures 3, 4 and 5 showing details and modifications and
Figures 6 and 7 show details relating to the application of my invention to a
stone drilling machine.
The general construction of the machine is the same as that described in my
former British Patent No. 10614 dated June 21st 1891 and it is not therefore
necessary to describe the same.
e is the cutter (there being a number of such cutters) and the same is according
to this invention made in one piece with the heads b, a spindle uniting the said
parts b and c. These spindles or plungers 6' are guided in crossbars k and 7 between
the side-bars h of the framing of the machine, there being fixed sleeves s in the
manner shown within and between the said crossbars and a spiral spring e is
arranged inside of the same resting at the bottom against a shoulder in the sleeve
and at the top against a shoulder on the spindle as shown. This spring serves to
lift the spindles after each blow of the hammers a. Of course the detail arrange-
ment of this sleeve and spring may be varied in different ways without departing
from the invention. I prefer to make the part of the spindles & below the afore-
said shoulder, square in section and providing also a square hole in the bottom of
the sleeve so that the spindle is not capable of turning within the same; the sleeves
themselves may be arranged, as illustrated in Figure 3, so that they may be turned
somewhat together with the spindles. To this end the sleeves are provided with
short arms m touching each other at the end, of which arms those belonging to the
two outermost sleeves are prolonged to form levers m² and m², connected with each
other and with a handle n by means of links n' and n. By manipulating the handle,
the sleeves may be simultaneously turned somewhat, thereby turning also the
cutters, for purposes which it is not necessary to explain.
When it is necessary that the cutters are continually turned during the work,
which is generally the case in stone drilling machines, the arrangement may be
that shown in Figures 6 and 7. In this case the sleeves are provided with a
flange o baving teeth p, in which works a pawl r, mounted on a loose sleeve t, that
receives a to and fro motion from an excentric rod W, which mechanism need no
further description, it being of well known kind.
}

page_text: Figures 4, 4 and 5 show a modified construction, in which the sleeves are left
out and instead of two cross-bars there is only one (1) in which guide holes are
-drilled to receive the spindles and the surrounding springs e.
Having now particularly described and ascertained the nature of the said inven-
tion 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. In a stone working machine a cutter or chisel made in one piece with the head
that receives the blows of the hammer, said cutter and said head being united by
means of a spindle which has its bearing or guides in a crossbar or crossbars of the
framing of the machine.
2. In a stone working machine the combination with the cutter an.l its spindle of
spiral spring surrounding the spindle and acting to lift the spindle against the action
of the hammer, substantially as described.
3. In a stone working machine the combination with the cutter and its spindle
and the spring surrounding the latter of a sleeve enclosing the spring and being
mounted in the cross-bars of the framing of the machine substantially as
described.
4. In a stone working machine as thirdly claimed sleeves serving as guides for
the cutter spindles being mounted in the crossbars of the machine in such a way,
that they may be turned by means of arms and levers connected therewith
(Figure 3).
5. In a stone working machine as thirdly claimed sleeves serving as guides for
the cutter spindles in combination with means substantially as described with
reference to Figures 5 and 6, for continually turning the same in one and the same
direction.
Dated this 31st day of October 1896
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.