Year: 1896

page_text: Date of Application, 11th Aug., 1896-Accepted, 5th Dec., 1896
of California, United States of America, Gentleman, 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 has relation to improvements in pumps for raising water containing
mud, sand or gravel and the object is to simplify and reduce the cost of construction
of a pump of this class without impairing its efficiency, and to these ends the
novelty consists in the construction, combination and arrangement of the parts of
the same, as will be hereinafter more fully described and particularly pointed out
in the claim.
In the accompanying drawing the same figures of reference indicate the same
parts of the invention.
Fig. 1 is a side elevation of my improved pump with one side removed, showing
the exhaust port-holes, oscillating piston, and inlet valves in place.
Fig. 2 is a longitudinal vertical section of one of the sides containing the exhaust
valves.
Fig. 3 is a transverse vertical section of the same on the line of one of the
exhaust valves.
Fig. 4 is a top plan view of the same side showing the integral casing of the
exhaust valves.
2 represents the cylindrical casing and it is interiorly provided with a radial
removable partition 3 having a cored inlet passage 4 communicating with the main
induction inlet 5; the outer ends of the inlet passage 4 are provided with ordinary
foot valves 6, 6 and 7 is the oscillating piston, which has a movement approxi-
mately from one exhaust port 8 around the cylindrical casing 2 to about the mouth
of the other exhaust port 8 and its hub 20 is secured to and oscillates with the
driving shaft 9, one end of which passes through a stuffing box on the plain side of
the casing (not shown) and this end of the shaft is connected to the motor so as to
give the piston 7 the necessary oscillating motion to operate the pump.
This piston 7 consists of two parts or halves 25 and 26 which constitute the hub 20
provided with apertures through which the shaft 9 passes, and to which one of
the parts 26 is secured by a set screw 21.
The outer ends of the piston are curved to correspond with the internal periphery
of the cylinder and their inner contiguous faces are radially straight as shown at 22.
Any suitable packing 23 is placed between the radial contiguous faces of the
piston, and is held in place therein by a screw bolt 24 which secures the parts 25
and 26 together and fir:nly holds the packing 23 between them. When it is desired
to renew the packing, all that is necessary is to remove one of the heads of the
cylinder to remove the bolt 24 which will allow the parts to be separated, to replace
the worn packing by a new one.
The other end of said shaft 9 is journaled in a bearing 10 located in the opposite
side 12 which is provided with the exhaust ports 8 8 the upper end of each
terminating in a valve seat 13, on each of which is seated a vertically reciprocating
puppet or check valve 14 14', the stem 15 of which has a vertical movement in the
guide opening 16 in the removable screw cap 17. These exhaust openings 8 8¹
are connected with the eduction opening 18 by a common passage 19 and assuming

page_text: the piston 7 to move in the direction of the arrow in Fig. 1, the space on its right
hand side will fill with water by the vacuum caused by the piston, the check
valve 14 closing, and the foot valve 6' opening to admit the water through the
inlet 5 at the same time the foot valve 6 closes and the water is elevated or forced
out through the check valve 14, the passage 19 and the eduction opening 18. When the
piston is reversed, or moved in a direction opposite to that shown by the arrow,
the valves work reversely and the same effect takes place; the water is drawn into
the cylinder through the inlet 5 and is forced out through the outlet 18, and by
connecting an ordinary air chamber to the outlet 18, the stream expelled by the
intermittent motion of the piston becomes regular and continuous.
The construction of the pump is so simple as to require little further descrip-
tion. The construction and operation of the valves are such as to particularly
adapt the pump for mining use, when sand, gravel and grit are found in the
water, and which will have little or no action on the valves or their seats, which
however are easily accessible for renewal, as seen.
The partition 3 as shown in dotted lines may be a separate removable casting,
as shown in dotted lines in Fig. 1, and the casting and its foot valves removed
for the purpose of repair or renewal, and by removing the caps 17, the valves 14 14'
may likewise be treated. Although I have specifically described the construction
and relative arrangement of the several elements of my invention I do not desire
to be confined to the same, as such changes or modifications may be made as
clearly fall within the scope of my invention without departing from the spirit
thereof.
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. A pump, comprising a casing provided with a removable partition having an
induction passage provided with a foot valve, an oscillating piston and provided with
suitable eduction valves, substantially as and for the purpose set forth.
2. A pump, comprising a casing provided with an interior radial removable
partition, containing an induction passage provided with a foot valve, a piston
adapted to oscillate on either side of the partition and provided with suitable exhaust
or outlet valves, substantially as and for the purpose set forth.
3. In a pump, the circular casing 2, provided with a removable cover 12 having
cored outlet or exhaust passage 8 and valve 14 located in the removable cap 17, as
and for the purpose set forth.
4. An oscillating pump, one of the removable sides of which is provided with the
exhaust outlets having suitable outwardly-opening valves, substantially as and for
the purpose set forth.
5. A pump, comprising a casing provided with a partition having an induction
passage controlled by a foot valve, an eduction passage provided with a suitable
valve, and a piston consisting of two parts adapted to secure their packing between
them, as and for the purpose set forth.
Dated this 11th day of August 1896.
BOULT & WADE,
Agents for the Applicant.