US1027151A - Register for pumps. - Google Patents

Description

W. G. PRITGHARD.

REGISTER FOR PUMPS. 7 APPLICATION FILED 11:13.13, 1911.

11027,.151. Patente ad May 21,1912.

may? gm INVENTOR I 1111mm OPriTh d I c cu"- WITNESSES ATTORNEY UNITED STATES PATENT onnroa.

WILLIAMC. PRITCHARD, OF LANCASTER, PENNSYLVANIA.

anexs'rnn roa humps.

Specification of Letters Patent.

Application filed February 13, 1911. Serial No. 609,267.

measuring, and which are employed for dispensing liquids, such as oil or gasolene; and the invention relates more particularly to the registering mechanism employed to record the quantity of liquid drawn during each sale.

The objects of the invention are to provide a registering mechanism that shall be cheap, durable and eflicient, and that shall not only register the quantity delivered by the pump upon each stroke, but automatically alarm or give warning to the operator when a prearranged quantity shall have been recorded.

Another object is to. provide a simple device whereby the registering mechanism may be reset to its normal position of zero from any position within its scope of registration.

Still another object of the invention is to provide a device of this class that will be capable of attachment to any styleof pump having a movable piston and means for attaching the device thereto.

With these and other objects in view, my

invention consists in certain construction and combination of parts as will hereinafter be fully described and claimed and illustrated in the accompanying -drawings,-which form a partof this application, and in which like figures of reference refer to corresponding parts in all of the views; but it is fully understood that while I have here described my invention as shown, that I do not confine myself to the exact design, as slight changes may be made in the construction and arrangement of the several parts without departing from the spirit of the invention.

Inthe drawings :Figure 1, is a'perspec- .tive view of a dispensing pump, embodyihg my invention. .Fig. 2,-is a detail rear View of the registering device in connection w th the operating mechanism, attached to the Patented. May 21, 1912.

cured a rack-bar'4;-while the lower end of the piston rod 3, is attached to and operates the usual suction cylinder in the tank (not illustrated). The piston rod 3, is reciprocated in a vertical manner by the handcrank 5, which rotates a )inion (not shown) in mesh with said rackar 4. The outlet pipe 2, may be provided with a suitable valve or hose connection 6. Mounted in a suitable position, adjacent to the piston rod 3, is a computing or indicating chart 7, which may be divided and subdividedin any suitable manner; while secured to said piston rod 3, or to said rack-bar 4, is an index finger or pointer 8, which extends across the face of the chart 7, and is adapted to travel up and down over the face of the chart 7, as actuated by the piston rod.

Attached to the pump frame 9, and adjacent tothe top of the chart 7 is mounted my novel automatic register 10, which comprises a frame or casing 11, provided with an attaching base 12, and a central hub or boss 13, to one side of which" is attached by the pivot screw 14, there'movable cover plate 15; and to the other end of said hub 13, is secured by the screw 16, a gong or bell 17 Mounted within the frame or casing 11, in a freely rotatable manner upon the pivot screw 14, is a ratchet wheel 18, which is provided with a hub 19, around which is wrapped a tension spring 20, having one of its ends secured to said ratchet wheel 18, and the other end to said frame or casing 11, in" such a manner, that as said ratchet wheel-18, is rotated within the casing 11,

the spring tension will be increased until the further revolution of said ratchet wheel 18, is prevented by a suitable stop. To the 'face ofsaid ratchet wheel 18, is attached a dial 21, which is provided with a series of v suitable numerals or characters indicating the quantity of liquid drawn by each stroke of the piston 3, from the tank; said numere als 1 or characters being exposed to view, through an opening 22, in the removable cover plate 15.

In the construction herewith illustrated, the ratchet wheel 18, isprovided with a. se-

ries of teeth or notches 23, of even and regu w lar length to correspond to every numeral on the dial 21, from and including I, to and including the numeral for indicating the largest quantity, and one short tooth 24, to correspond to the numeral'indicating zero; said short tooth 24, being so placed with relation to the highestnumeral on the dial, that when said numeral has been reached said short tooth 24, will not extend sufliclently' to be engaged by the actuating pawl 25, which is mounted in an adjustable manner on the rack-bar 4; but said short tooth 24,

is of suflicient length to be engagedby the locking pawl 26, as the ratchet wheel 18, is being rotated by the downward stroke of the rack-bar 4, and piston rod 3.

The automatic alarm mechanism comprises the gong or bell 17, which is secured by the screw 16, to the hub 13, of the frame 11; a striking hammer 27, mounted on a resilient arm 28,. secured by the clamp 29, to said frame 11. Said hammer 2' 7, being provided with a slotted arm 30, engaged by a stud 31, on a pivoted arm 32, which arm projects through a slot 33, formed in said frame 11; said pivoted arm 32, being oper- 28, by a lug 34, projecting from the side of ated against the tension of the hammer arm the ratchet wheel, and so positioned as to engage said arm 30, and draw back-the hammer 27, just before, and release thev same when the largest numeral is reached by the revolution of the ratchet wheel the release of the arm 32, being accomplished by the lug 34, passing thereover, as the arm 32, travels in an arc of shorter radius than that of the lug 34;"said lug 34, alsoafter passing the arm 32,'engagesastop on the frame 11,

and prevents further movement of the ratchet wheel 18, in that direction.

The registering or ratchet wheel 18, is

operated only uponthe downward stroke of v the piston 3, and when the liquid has been discharged from the cylinder; and to, rotate said ratchet wheel 18, .the pawl 25,; ispivoted upon the upper end of'the rackbar 4,

and provided wlth an adjustment screw- 35,

and lock nut" 36; '25, upon the downward stroke of the rack-bar 4, engag ing a tooth of the ratchet wheellS, through an opening in the side of the case, and upon its upward stroke passing over said teeth.

mounted upon the frame 11, insuch a position that it engages the teeth of the ratchet wheel 18, and prevents backward movement of said wheel until released by pressing downward on the'finger lever 37, which is integral therewith, when the ratchet wheel 7 18, will return to. zero as actuated by the tension spring 20.

Referring to Fig. 2, it will be seen that when the ratchet wheel 18, has been rotated by the action of the piston 3, and pawl 25, to register the highest number, the short tooth 24, will be ina position whereby it cannot be engaged by the pawl 25, and thus the piston 3, can be operated independently of, the registering mechanism until the ratchet wheel 18, is returned to zero, so that if the operator disregards the warning ofthe gong, there will be no damage done by the operation of the pump.

As shown in Fig. l, of the drawings, there is a computing scale or chart 7, of the usual form attached in connection with an indieating finger 8, secured to the rack-bar 4,

for indicating the price per gallon, etc.; I

said chart being divided as desired.

In operation, the. register is always brought to zero, and upon each downward stroke of the piston, the-total number of. the, quantities of each stroke of the piston is.

registered. Thus it will be seen that the quantity of liquid drawn will be clearly shown and a correct register secured, thereby avoiding errors of the salesman in charging for the product.

The device is especially in filling automobile tanks, which is readily accomplished by connecting a hose tothe outlet nozzle and running the same to the vehicle;

and as before stated, the register will clearly show the quantity. I

Having thus described my invention what I claim'as new and desire to secure by Letters Patent is-:'

In a device of the characterdescribed, the combination with a pump pisto'nrod, a register adjacent thereto, a supporting frame therefor, a pawl pivot-ed upon said piston In testimony-whereofl affix my signature rod and adapted to operate said register at in presence of two witnesses.

the finish of the discharging stroke of said piston rod, one end of said pivoted pawl adapted to contact with said frame upon the return stroke of said piston to release said means from said register.

WILLIAM G. PRITCHARD.

Witnesses I. G. ARNOLD,

.'JOHN J. THOMPSON.

Images