US1997069A - Pump - Google Patents

Description

April 9, 1935. GIN-[ORE ETAL PUMP 2 Sheets-Sheet 1 Filed Oct. 3, 1932 erg,

Patented Apr. 9, 1935 1,997,069

UNITED STATES PATENT OFFICE PUMP Glenn More and Gunnard A. Oberg, Jamestown, N. Y., assignors to Blackstone Manufacturing Company, Jamestown, N. Y., a corporation of New York Application October 3, 1932, Serial No. 635,988 2 Claims. (01. 308-134) This invention relates to improvements in indicates a motor for driving the gearing of the pumps and consists of the matters hereinafter dewashing machine. Said motor is mounted on a scribed and more particularly pointed out in the platform I supported on spring shock-absorbing appended claims. bars l5, l5'attached to a horizontal bar rigidly 5 The object of the invention is to produce a supported by the legs of the tub. I! indicates pump which is of simple and economical conthe improved pump which is supported by the structionand isprovided with a novel and efficient gear casing of the washing machine, as shown in packing which will prevent leakage. Figures 2 and 3, wherein I'Ia indicates the bot- Another object of the invention is to provide a tom section of said gear casing.

pump in which adjustment of the stuffing box is l8 indicates the pump casing. This comprises 10 automatically taken care of at all times so that a fiat circular shell I!) having an integral end there is no possibility of the pump becoming wall on one side indicated at 20 and being open locked, as may occur where the stuffing box reon the opposite side. The open side of said shell quires mechanical adjustment. is closed by a flat plate 2| which is made integral These and other objects and advantages of the with a centrally disposed bearing sleeve or hous- 15 invention will appear more clearly as we proceed ing 22. 23 indicates a tubular inlet pipe made with our specification. integral with the wall of the casing and open- In illustrating the invention, we have shown g laterally into the Shell 24 i d a a the improved pump as applied to a washing matubular discharge pipe likewise integral with the 20 chine for draining water from the tub at the comshell I9 and opening radially thereinto. The 20 pletion of a washing operation or when changing Plate 2| and the Shell are Secured together the water therein. It will be obvious, however, by Suitable belts e e being a suitable asthat this is merely one example of the use of the ket disposed betw e the shell a d a plate to pump, which may be applied for draining water make a water--tightv joint.

25 from other containers. The pu is of the familial retary C t fuga 25 In the drawings:--- type. 25 indicates the rotor of the pump, the

Figure 1 is a view representing a, washing asame consisting of a flat disc 26 having a centrally chine in side elevation with our improved pump disposed hub 21 extending laterally t e efrom applied to drain the water from the bottom of the a d Cu va 28 also extending laterally tub and located in a position adjacent the motor therefrom and connected to said hub. 30 located below the bottom of the tub, 29 indicates a shaft for the rotor. Said shaft Figure 2 is a front elevation of the pump with has bearing in the tubular housing 22 and has a the bottom section of the washing machine gearprojection 30 of reduced diameter which extends ing casing, by means of which casing section the beyond the plate 2|, where it is fixed within the pump is supported. In this view the pump is hub 21 of the rotor. The housing 22 has aradial 35 shown with its drive pulley ..in operative engageinwardly projectingfiange 3| in the plane of the ment with the motor belt. disc 2|, which flange loosely engages the shaft Figure 3 is a view similar to that of Figure 2 29. The shaft 29 projects beyond the housing with the pump shown in that position which it 00- 22 (in a direction away from the pump casing).

40 cupies when its drive pulley is in inoperative relaand has there fixed t t a pulley 32,

1310!! with respect to the motel belie 33 indicates a sleeve which presents a combimgure 4 is a View representing an enlarged nation stufiing gland and bearing within the scale side elevation of the pumphousing. Said sleeve is spaced laterally from the Figure 5 is a view representing a section of the pump in a vertical plane through the longitudinal i s: mama? t g ifi fif r the 1 central axis of the pump shaft on a scale like that 9 e t momma e o e D By Pac 0! Figure 4. mg 35 1S interposed about the shaft 29 between In Figure 6 are shown perspective views the flange 3| of the housing 22 and the nearer spectively, of a combination stufling glan and end of the combination stuffing gland and bearbearing and abearing sleeve, which are contained Preferably the Parts 0f the 50 inthe housing for the drive shaft of the pum flange 3| and of the combination bearing and Referring now to that embodiment of the stufling gland 33 are inclined away from each v ntio illustrated in the drawmgs;-|o indiother so that the packing 35 is longer adjacent catesawashina machlneofanyfamiliar constructhe shaft 29 than it is adjacent the housing 22. tion. including a tub ll standing on legs l2; It A coiled spring 36 is interposed about the shaft shoulders 33a and to any tendency to -sult that the coiled spring 23 between the combination bearing and stufilng gland 33 and the bearing sleeve 34.

The bearing sleeve 34 is fixed by a set screw 31 both against rotative and longitudinal movement in the housing 22. The combination stuffing gland and bearing 33 is capable of longitudinal movement in the housing 22, with the re- 36 holds it against the packing 35. The opposed ends of the combination stufilng gland and bearing 33 and of the bearing sleeve 34 are notched to provide radial 34a, respectively, as shown in Figure 6. Said shoulders are opposed circumferentially and are engaged by the ends of the coiled spring 36. The spring 36 is coiled in a direction opposite to that in which the shaft is designed to be driven. a

Any rotation of'the combination stufiing gland and bearing sleeve 33 with the shaft is resisted by the coiled spring, which is locked against rotation as a whole by the engagement of its righthand end against the shoulder 34a of the fixed bearing sleeve 34. In addition, such rotation would tend to uncoil the spring and thusexpand it radially so as to lock the spring in the housing. Thus the strain on the fixed bearing sleeve 34 due rotation of the combination stuffing gland and bearing 33 is reduced to a minimum.

In the bottom of the housing is set a pressure grease or oil cup 38 by means of which lubricant may be forced into the housing to continuously renew the supply therein. By the-1ocation of the grease or oil cup 33 intermediate the gland 33 and sleeve 34, the bearing is lubricated from the inside, and water from the pump is thus prevented from entering ing housing.

The pump casing is provided with laterally spaced, upwardly projecting apertured ears 39 by which the pump as a whole is hinged to lugs 39a depending from the bottom of the gear casing section pump is so located that the pulley 32 is in the plane of the belt I 3a of the motor. In Figures 1 and 2 the pulley 32 is shown engaged with said belt by means of which it is driven so as to rotate the shaft 29 and operate the rotor 25 of the pump. In Figure I 3 the pump is in the idle position.

.The shaft housing 22 has an upwardly projectinto the packing and into the bearing apertured lug 40 to which are pivotally connected plates 4| engaged by a crank arm 42 on a horizontal rock shaft 43. Said rock shaft extends horizontally below the gear casing section Ila, which has depending lugs 43a, 43a, in which said rock shaft is rotatively mounted. Said rock shaft extends through and beyond the usual apronsurrounding the gearing below the washing machine. There it is provided with a handle 44 for rotating the crank arm 42 to raise or lower the housing by swinging the pump as a whole on the pivotal connection of the ears 39 with the lugs Ila, as shown in Figures 2, 3 and 5. The

33a depending from the gear casing. By this means the pulley may be brought to engagement with the belt I 3d when it'is desired to operate the pump or may be moved from such engagement, as shown in Figure 3, where it is not engaged by said belt, and the pump will be idle. The bottom ends of the plates 4|, in either position of the pump, engage a shoulder 40a on the pump casing at one side of their pivotal connection with the lug 40 and a coiled spring 44a connecting the crank arm 42 to the casing Ila, causes said arm .to snap to either position in a familiar manner.

A short flexible hose 45, connects the inlet 23 of the pump to a drain in the bottom of the tub in the usual manner. A like and longer piece of hose 46 is connected to the outlet or discharge pipe 24 of the pump and its freeend may be led to any suitable drain outlet for the discharge of the water from the pump. a

The stuiling box being placed immediately adjacent to the rotor casing, the entrance of water into the shaft housing is absolutely prevented. In addition, any wear of the parts and adjustment required therefor is automatically taken up by the pressure of the spring 36 which yieldingly forces the end of the combination stufling gland and bearing 33 against the packing 35. No locking of the pump shaft may occur, since any tendency to bind the shaft for any'reason whatever would be-prevented by the yielding of the spring.

We claim as our invention:

1. In combination with a rotary shaft and a housing therefor, means providing a stufling box in said housing, including a packing, a combination stufling gland and bearing for said shaft longitudinally movable in said housing, a bearing sleeve in'said housing spaced fromsaid gland, the opposed ends of said gland and sleeve being constructed to present shoulders facing in opposite directions, and a coiled spring on said shaft interposed between said gland and sleeve and having ends engaged with said shoulders, said spring being 'coiled in a direction opposite to that in which said shaft is designed to rotate and its di-' ameter approaching the inner diameter of said housing.- I

2. -A rotary pump shaft packing including a housing, a bearing sleeve fixed in said housing, a combination stufiing gland and bearing spaced from said fixed bearing sleeve,'packing engaged with the outer end of said gland, and an expansion coiled spring interposed about said shaft between said-fixed bearing sleeve and said gland, said spring approaching the inner diameter of said housing but being normally free therefrom,

said spring being coiled and engaged, respectively,

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