An Improved Apparatus for use in Working Stone.
Year: 1892

page_text: Date of Application, 15th Feb., 1892
Complete Specification Left. 15th Nov., 1892-Accepted, 31st Dec., .1892
PROVISIONAL SPECIFICATION.
An Improved Apparatus for use in Working Stone.
I, MYER MILTON KANN, of 204 Wood Street, Pittsburg, Pennsylvania, U.S.A.
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This my invention has reference to an improved apparatus for use in working
stone with abrasive grinding material, and is used in combination with the machine
employed. By this my invention I provide a tank which contains the grinding
material. An elevated distributor is located above the tank and an injector leads
thereto. The injector comprises a vertical supply-pipe, and an eduction-pipe is
arranged substantially in line with the supply-pipe, and is provided with an
intensifying neck, which tapers in regular lines and without recesses for the
lodgement of the grinding material. A steam supply nozzle extends into the
eduction-pipe for the purpose of ejecting the material. Suitable slide gates are
arranged within the distributor and within the pipes leading therefrom, and serve
to control the openings in the pipes, said slide gates having a flat bearing face.
and bevelled edges. Suitable bevelled guides cover the edges of the bevelled
edges.
Dated thin 11th do of Fahmi 1899
W. H. MUNNS,
Applicant's Agent.
COMPLETE SPECIFICATION.
An Improved Apparatus for use in Working Stone.
1, MYER MILTON KANN, of 204 Wood Street, Pittsburg, Pennsylvania, U.S.A.
Manufacturer, 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 :-
The invention consists, first, in a stone working apparatus having a tank and
distributer connected by a vertical injector-pipe, whereby clogging of the pipe is
totally obviated; second, in a closed distributer whereby a pressure may be
maintained therein to prevent any settling of the abrading material to the bottom
of the distributor, and, third, in a branch steam-pipe which leads to the tank and
keeps the material stirred up and well mixed therein.
It also consists in certain other features of construction & arrangement herein-
after mentioned and claimed.
I shall now proceed to describe my improvement, with reference to the
accompanying drawings, in which—
Figure 1 is a plan view of apparatus embodying my invention.
Fig. 2 is a vertical sectional view thereof on line
of Fig. 1.
Fig. 3 is an edge elevation of the syphon-pump, partly in section; and
Fig. 4 is a vertical section on the line of Fig. 3.
Like letters of reference refer to like parts throughout all the views.
Referring to Figs. 1 and 2, 2 represents a tank of conical-shape adapted to
contain water and a grinding material, which may consist of small particles of
fractured steel or other material. 3 is an elevated distributer into which the steel
particles are delivered from the tank 2. This distributer is closed, as shown, in
order that a pressure may be maintained therein and that the strong current
induced by the entering grinding material and water may prevent any settling of
the. material within the distributer. 4 is a.pipe connecting the distributer 3 with

page_text: the tank 2, and 5 is a steam syphon-pump, preferably of peculiar construction,
which is set in a line with the pipe 4 & is provided with a steam supply-pipe 6. It
is essential that the pipe 4 should be vertical, in order that all the material therein
may drop back into the tank 2 when the injector is shut off," and thus prevent
clogging of such pipe.
.
77 are cars carrying the stone to be sawed. The cars are set in gangs 8, having
inclined bottoms, from which troughs 9 lead to discharge into sieves 10 above the
tank 2. Above the stone on the car in each gang 8'is a funnel 12, having delivery-
openings 13 and adapted to deliver the grinding material with water to the several.
saws. Pipes 14 lead from the distributer 3 and discharge into the, funnels. These
pipes open laterally into the distributer, and their openings are controlled by
slide-valves which move vertically in guides and are operated by lifting rods or
stems 17 which pass through caps or glands. The guides of the valves are bevelled,
and the internal pressure on the reservoir tends to force them to their seats. Each
may be opened or closed separately, so as to deliver the grinding material into any
one or more of the pipes 14, and as they operate with a vertical lifting action and
as their edges are covered by the bevelled guides they cannot be clogged by the
grinding material, and as they are not apt to be worn by abrasive action they are
very durable. The construction is such, also, that packing for the valves is
unnecessary.
expose а
20 is an overflow-pipe, which leads from the distributer at a point above the
level of the pipes 14 and extends downwards so as to discharge into the tank 2.
A cap is fitted to the top of the distributer and is removable, so as to
man-hole, through which access can be had to the interior. If desired, the
overflow-pipe may be fitted to this man-hole in place of the cap. By closing the
distributer a pressure can be maintained therein, by reason of which the abrading
material is constantly stirred up by the entering steam and water, and the liquid
flows to the saws under pressure as well as by gravity.
The operation is as follows:-The tank 2 is charged with grinding-material and
water. Stean is admitted through the pipe 6 into the syphon-pump and elevates
the water and grinding-material into the distributer 3, whence it Hows through the
pipes 14 to the stone blocks which are being sawed. The surplus water and
grinding-material descend again to the tank 2 through the overflow-pipe 20, thus
maintaining in the tank a constant agitation, which prevents the grinding material
from settling and also keeps in suspension the mud in the water, so that it can be
removed with the water through an overflow drain. The water and grinding
material after performing their work at the saws return in the troughs 9 to the
sieves 10, which retain all large particles of stone and permit the water and
grinding material to pass into the tank 2.
The pump 5 is of peculiar construction, which forms part of my .invention.
Steam-syphon-pumps as heretofore constructed have not been used for delivering
abrasive grinding material and have not been adapted to such use, principally,
because when the steam is shut off, the material falling back to the pump lodges in
a projection or recess above the steam-nozzle and so clogs the pump and stops its
operation. The pump is illustrated in Figs. 3 and 4. The body of the pump may
be of the annular form shewn, having chambers 21, which come together at the top
and bottom and which terminate in an upwardly tapering passage or neck 22,
which at its upper end flares outwardly in regular lines, as at 23. Between the
ends of the parts 22 and 23 the neck is of contracted diameter, so as to intensify
the action of the steam. Said neck is preferably made of a separate casting
secured to the body of the pump by bolts 24 or otherwise, so that it can be replaced
when desired. 25 is the steam-supply nozzle, which extends axially into the
part 22 and is screwed to the body of the pump, as shewn. The steam-supply
pipe 6 is connected with the nozzle 25 by a suitable conpling 26.. When the steam
discharges into the pump through the nozzle, it creates suction, which elevates the
water and grinding material, and discharges them forcibly through the pipe.4 into
the elevated distributer. "When the steam-supply is shut off, the particles of

page_text: grinding-material fall back; but as there is no projecting recess in the neck of the
pump they cannot lodge there and cannot choke the pump. Any particles which
may enter the nozzle 25 are ejected therefrom when the steam is turned on.
Instead of using the overflow-pipe 20 as the means for causing the agitation of
the liquid in the tank, I may use, in addition thereto or alone, the steam pipe 6¹,
which extends into the tank from the pipe 6 and is provided with a valve. When
grinding material stands quiet in the tank for some time, it is apt to cake in the
bottom thereof; but by passing steam through the pipe 6' such cake is agitated
and broken up, so as to liberate the particles of grinding material and to diffuse
them through the liquid in the tank.
In order to prevent the nozzle and body of the pump from being cut by the
abrasive action of the grinding material, I prefer to make them of chilled iron or
very hard steel.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a stone working apparatus, the combination, with a distributer, of an
injector leading thereto, said injector comprising a vertical supply-pipe, an eduction
pipe substantially in line with the supply-pipe and provided with an intensifying
neck tapering in regular lines and without recess for lodgment of the grinding
material, and a steam-supply nozzle extending into said eduction-pipe, substantially
as and for the purposes described.
2. In apparatus for working stone, the combination of a tank containing abrasive
material, a distributer above the tank, and an ejector having a vertical pipe
connecting them and having an intensifying neck without recess for the lodgment.
of the grinding material, said pump receiving the material from the tank and
delivering it to the machine, substantially as and for the purposes described.
3. In apparatus for working stone with abrasive grinding material the com-
bination of the tank containing grinding material, a lifting pump an elevated closed
distributor pipes leading therefrom and vertical slide-gates controlling the openings.
of said pipes substantially as and for the purposes described.
4. In apparatus for working stone with abrasive grinding material the com-
bination of the tank containing grinding material a lifting pump an elevated closed
distributor pipes leading therefrom and slide-gates located therein and controlling the
openings of said pipes, said slide-gates having a flat bearing-face beveled edges and
beveled guides covering the edges substantially as and for the purposes described.
5. In apparatus for working stone with abrasive grinding material the com-
bination with the stone working machines and a tank containing the grinding
material of an elevated distributer having pipes leading to the machines an ejector
discharging from the tank into the distributer and a branch steam pipe leading
into said tank substantially as and for the purposes described.
6. In apparatus for working stone with abrasive material the combination with
the stone working machines and a tank containing the grinding material of an
elevated closed distributer having pipes leading to the machines and an ejector
discharging from the tank into the distributer substantially as and for the purposes
described.
Dated this 15th dex of November One thousand eight hundred and ninety-two.