US676542A - Pumping and reciprocating mechanism. - Google Patents

Description

Patented June I8, I90I.

PUMPING AND RECPRUGATING WIEGHNISM.

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Wnagseb. ,a//m/ 6W' No. 676,542. y Pneu-ted lune la, 190|.

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PUHPINE AND RECIPRDGATING MGHANISM.

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Patented lune I8, l90l.

S. W. LUITWIELEB. PUMPING AND BEGIFRUCATING-MEGHANISM,

(Applied-ion. led. Oct. 11, 1899.).

4 Sheets-Sheet 3.

(No Model.)

wh/oss es No. 676,542. Patented lune |8, l90|.

S. W. LUITWIELER. PUMPING AND RECIPROCATING MECHANISM.

(Application led Oct. 11, 1899.)

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vtheir object to render the UNITED STATES PATENT OFFICE.

SAMUEL W. LUITVVIELER', OF LOS ANGELES, CALIFORNIA.

PUMPvING AND REClPlROCATING MECHANISM.

SEECIFIGATION forming part of Letters Patent N o. 676,542, dated June 18, 1901. Application filed October 11, 1899. Serial No. 733,330. (No model.)

T0 all whom, t may concern.-

Be it known that I, SAMUEL W. LUITWIE- LER, of the city of Los Angeles, county of Los Angeles, and State of California, have invented certain new and useful Improvements in Pumping and Reciprocating Mechanism, of which the following is a full, clear, and'exact description or specication, reference being had to the annexed sheets of drawings, and to the letters marked thereon.

My invention relates'to that class of reciprocating mechanism used more especially for operating double-plunger pumps-that is to say, that class of pumps in which two pump plungers or bucketsV are used in the same pump barrel or cylinder, one bucket or plunger being above the other, with a sufficient space between them to enable their reciprocating movements to be made without interference of one pump bucket or plunger with the other pump bucket or plunger, the upper pump bucket or plunger being connected to a tubular pumprod and the lower pump bucket or plungerbeing connected to another pump-rod,which is operated through the tubular pump-rod of the upper bucket or plunger.

My present improvements in mechanism of the kind referred to have for their object principally simplification of the mechanism used in driving pumps of the class hereinbet'ore referred to,while myimprovements also have for cam-frames to which the pump-rods are connected adjustable in relation to the pump-rods and also adjustable in relation to the cams which operate the camframes and pump-rods, while a further object of my present improvements is to enable the pump itself and its operating parts to be brought to the front of the framing of the pump, and in cases where my improved mechanism is used for operating two pumps, which it is equally adapted to operate without altering the construction of the mechanism, then the second pump is placed in the same position at the rear of the framing that the single pump (when a single pump alone is used) occupies in relation to the front part of the framing. In this way I am enabled to utilize the operating or driving gear of the pump for operating two pumps in place of a single pump as hitherto. This object I attain by constructing the cross-heads and cross-tails alternately of the adjustable cam-frame forming part of this invention with offsets projecting from the front or from the front and back and then turned toward the center of the framing, so as to be centrally over the pump-rods to which Ithey are connected.

The framing of my improved pumping and reciprocating mechanism in place of being constructed as hitherto is formed in two portions, which are united by a joint'at the axis of the cam-shaft by bolts.

On the annexed drawings, Figure l is a front elevation of my improved reciprocating mechanism for operating double plunger pumps. Fig. 2 is a view at right angles to Fig. l, showing the framing in section on the dotted line a ct, Fig. 1, andthe driving mechanism and the rest of the framing in end elevation. Fig. 3 is a plan of my improved reciprocating mechanism for operating doubleplunger pumps. Fig. 4 is a horizontal section of the same on the line b b, Figs. l and 2, showing part of the framing and part of the mechanism in section and part in plan. Fig. 5 is an elevation of the framing. Fig. 6 is an end elevation of my reciprocating mechanism operating two pumps.

As shown by the figures, the framing is constructed of the upper part A and the lower part A. These two parts of the framing A and A are connected by a joint on the level of the axis of the cam-shaft B and are fastenedby bolts C, as shown. The inner vertical faces of Ithe framing A and A have cast in one piece with them the slides or motionbars D D, each of which extends a sufficient length vertically upward and downward within the framing to enable the cross-heads E and cross-tails F to slide freely and reciprocatingly thereon while providing rigid vertical support for the cross-heads and crosstails constituting the upper and lower ends of the cam-frames. Upon the cam-shaft B there are carried two cams G and G', respectively. These cams G and G are formed with projecting portions H I-I, corresponding with similar projecting portions in Letters Patent No. 629,039, granted to me July 1S, 1899, the

dierence between the cams shown in the annexeddrawingsandthatshown,described,and claimed in the aforesaid Letters Patent being that the projecting portions II are arranged at one sideof the cam in place of along the center thereof, as in the cams comprised under the Letters Patent aforesaid. The cross-heads of my improved cam-frame are provided With antifriction-rollers I, against which the projecting members H of the cams operate, andthe cross-tails F are provided with antifriction-rollers J, against which the depressed or recessed portions K of the cams operate.

The cross-head E and the cross-tail F of each cam-frame are connected together by metallic rods L L, respectively,-whichy are provided With adjusting-nuts M M M M at their upper yand lower ends to enable the distances apart of the cross-head and cross-tail vF of the other cam-frame is provided with an offset P, to which the tubular pump-rod Q of the upper bucket or plunger is connected. In this way by means of the cams Gr and G the cam-frames'are operated in close proximity to each other and with the offset of-one cam-frame immediately above the offset of the other cam-frame without the two osets interfering with each other and in such manner that the pu mp-rods O and P, and thereby the pump itself, may be placed in a central position immediately in front of the framing of the mechanism. By extending the offsets of the cross-heads and cross-tails, respectively and alternately, of each cam-frame to the rear of the framing, as shown by dotted lines in Fig. 2 and in end elevation at Fig. 6, then a second pump similar to the pump R and coupled to pump-rods similar to O and Q, as shown in dotted lines in Fig. 2 and in Fig. 6, may be operated by one and the same pump mechanism. The cam-shaft in myimproved pump-operating mechanism is as in pump mechanism for which I have applied for Letters Patent of previous date hereto provided with a spur-wheel S for operating the same by means ofthe pinion T, gearing into said spur-Wheel S and together driven by a belt' upon the pulley U upon the counter-shaft V.

In'order to allow the under part of the cam when in the position shown by the cam G' in Figs. l and 2 to pass freely and Without coming in contact with the cross-tail F, the cross-tails F are each formed with the recess vantifriction-rollers.

The head of the pump is provided with a stuffing-box in which the gland Y is used,

' and the hollow piston-rod Q is also provided with a stuffing-box in which the gland Z is used, bothstuffing-boxes being provided with packing in the usual manner, as is well understood.

Having no w described the nature of my said invention and the best mode, system, or manner I am at present acquainted with for carrying the same into practical effect, I desire to observe in conclusion that what I consider to be novel and original, and therefore claim as the invention to be secured to me by Letters Patent, is as follows:

1. The combination of the double-plunger pump, the differential cams, the ladjustable cam-frames, thev cross-head of one of the cama frames having a curved offset connecting Vit yto the pump-rod of the lower bucket and the cross-tail of the other cam-frame having an oppositely-curved odset connecting the camframe to the tubular rod of the other bucket,- both pump-rods and the ends of both offsets occupying a central position in front of and external to the framing carrying the pumps beneath the base-plates thereof, substantially as set forth.

2. The combination of two plunger-pumps,- two differential cams, two adjustable camframes with front and rear curved offsets of the cross-head of yone ofthe cam-frames connected to the rods of the lower buckets of two pumps, and the front and rear curved offsets l of the cross-tail of the other cam-frame being connected to the tubular rods of the other buckets, the pumps and curved offsets on the front and rear cross-heads and cross-tails of the cam-frames projecting externally and at :a central position at both the front and rear of the pump-framing, substantially as described.

3. The combination of two double-plunger pumps, two differential cams, two differential cam-frames, the fron-t and rear oppositelycurved offsets of the cross-heads and crosstails of the cam-frames respectively connected to the pump-rods, the pump-rods and curved oifsets being situated centrally at the front and rear of the framing centrally and externally thereto, substantially as hereinbefore described.

4. The combination-of two double-plunger pumps, two dierential cams two adj ustable cam-frames with fron-t and rear oppositeiycurved offsets'of the cross-heads and crosstails, respectively, the pumps at the front and rear of the framing situated centrally and ex- Ido IIO

ternally thereto, the gearing for operating the my hand and seal, in the presence of two subshaft on which the dierential cams are carsoribing'lwitnesses, this 27th day of July, 1899.

ried and the frarnlno constructed of upper p and lower parts separable at the axis of the SAMUEL W' LUITWIDLLR" [L' S'] 5 cam-shaft, substantially as hereinbefore de- Witnesses:

scribed. ST. JOHN DAY,

In testimony whereof I have hereunto set JOHN SATTERWHITE.

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