US1531823A - Compensating device for oil-pump counters, etc. - Google Patents

Description

March 31. 1925.

E. A. SLYE COMFENSATING DEVICE FOR OIL PUMP COUNTERS, ETC

FiledFeb. 21; 1924 2 sheets-sheet 1 March 3L 1925.

E. A. SLYE CQMPENSATING DEVICE FO OIL-PUMP COUNTERS, ETG

2 Sheetsv-Sheet Filed Feb. 21, 1924 Patented Mar. 31, 1925.

UNirfED srATEs PATENT orale EDWARD A. SLYE, OF HARTFORD, CONNECTICUT, ASSIGNOR T THE VEEDR`-MANU- FACTURING COMPANY, OF HARTFORD, CONNECTICUT, A CORPORATION O'F CON- NECTICUT.

COMPENSATING DEVICE FORiOIL-PUMP COUNTERS, ETC.

Application led February 21, 1924. Serial No..694,235.

T o all 'whom t may concern Beit known that l, EDWARD A. SLYE, a citizen of the United States, residing in Hartford, in the State of Connecticut, have made certain new and useful lmprovements in Compensating Devices for Oil-Pump Counters, Etc., of which the following 1s a specification, reference being had to the accompanying drawings, forming a part hereof.

ln the applications o-f Harold J. lVilliams, Serial No. 679,918, and of Curtis Hussey Veeder, Serial No. 67 9,919, both yfiled December 11, 1923, and both assigned to the assignee-herein, there are shown and described devices for compensating the movement of counters for gasoline pumps designed to compensate the movement of the counting mechanism for variations in the delivery of ,different pumps of the same manufacture, such devices being of such a character that the compensation is proportional to the length of-stroke of the pump. ln the devicescovered by such applications,

compensation proportional to the length of stroke of the pump is dependent upon the 'fact that one of the members of the compensating device has not only a rotary oscillating movement but alsov a longitudinal movement or a movement of displacement during and with respect to its rotary oscillating movement, so that the compensation is progressive during the stroke of the pump and is proportional to the length of stroke ofv the pump. ln the development of the inventions covered by said applications, it has been found that compensation proportional to the length of stroke of the pump can be attained by mechanism which is difv@ ferent /in character from that described in said applications and under some conditions of use may be considered preferable. Such other vmechanism will be described hereinafter with reference to the accompanying drawings in which itis illustrated and in which- Figure 1 is a view in front elevation of a dial counting mechanism in connection with which the present improved compensating devices may be employed, the dial plate being partly broken away and the casing being shown partly in section.

Figure 2 is a view in section on the plane irdicated by the broken line 2-2 of Fig- -ure looking in the direction of the arrows. t Figure 3 1s a view in section on the plane indicated by the broken line 3-3 of Figure 1, looking in the direction of the arrows.

.Figure 4 is-a detail view, partly in seetion and partly in elevation, illustrating particularly 'the connection from the gear segment through the vclutch mechanism to the driven part.

Figures 5 and 6 are detail views in elevation of the compensating devices, with parts shown in different positions in the sevegal figures.

Figure 7 is a detail 'View of the resetting gears.

ln the embodiment of the invention illustrated in the drawings, the several working parts, including the dial a, the pointer a', the pointer supporting shaft a2 and the totalizing counter-a8 are supported by' a suitable cast metal frame or casing o and bridge piece .6', the latter supporting a.bearing sleeve b2 in which the shaft a2 is mounted as hereinafter explained. rlhe counting mechanism is actuated in the operation of the pump, through a lever c in operative engagement with a moving part of the pump mechanism, not necessary to be shown, preferably the shaft or gear by which the rack bar of the pump is actuated, the lever 0 being secured to a shaft 0 which carries a pinion 02 in engagement with a gear segment d which receives, through the forward and reverse movements of the pinion 02, a rotary oscillating movement. The gear segment d is shown asysupported upon the sleeve b2, which. is carried by the frame member b. The arm d of the gear segment supports pivotally at d2, a lever e which is forked at its upper end, as at e" (see Figures 2 and 6) to straddle anadjustable fulcrum blockf which is carried by a lever f pivoted on the main frame or casing, as at f2. At its other extremity the lever f is slotted longitudinally, as at ff?, to engage an eccentric pin f4 carried by a short shaft f5 which is mounted in a clamping bearing b? supported by the main frame or casing b. The shaft f5 may be engaged, outside of the casing, by a suitable key or instrument, indicated by broken lines in Figure 3, for' the purpose of rotating the shaft f5 and so' changing the position of the eccentric pin' f4 and, through the lever f',

shifting the position of the fulcrum block f. Thereby the fulcrum block f may be shifted from its normal, mediate position shown in Figure l, either toward its highest position, shown in Figure 5, for a long stroke of the pump, or toward its lowest position, shown in Figure 6, for a short stroke. As the lever e is supported by and oscillates with the segment d, it is obvious that the lower end of the lever e will oscillate through an are which is least when the fulcrum is in its highest position, as shown in Figure 5, and is greatest when the fulcrum is in its lowest position, as shown in Figure 6. rlhrough a link e2 at its lower end the lever c engages operatively a lever g, mounted concentrically with the shaft a2. 'lihe lever g is operatively connected with the counting mechanism, as hereinafter described, and is the driven member of the compensating devices. lt will be obvious that when the fuln crum block f is in its median position, the

i stroke of the angular motion of the lever g is the same as that of the segment d. When the stroke of the pump, necessary to deliver a unit volume of liquid, is shorter than the standard stroke, so that the gear segment CZ is moved through an angle somewhat less than its normal movement of about 90, it is obvious that in order to register upon the counting mechanism the delivery of a unit volume of liquid, the angularmotion of the lever g, must be greaterv than that of the gear segment al. Consequently, stroke shorter than the standard, the ful` crum block f must be lowered, as shown in Figure 5; On the other hand, if the pump necessary to deliver a unit volume of liquid is greater than the standard stroke, so that thegear segment al moves through an angle somewhat greater than its normal movement of about 90, the movement of the actuating lever g, must be less than that of the gear segment. Consequently, for a pump stroke longer than the standard, the fulcrum must be raised, as shown in Figure 6, so that, notwithstanding the longer stroke of the pump the counting mechanism shall register only the delivery of a unit volume ofliquid.

As a means for actuating the counting mechanism from the lever g, in the embodiment of the invention illustrated in the drawings, the lever g is operatively connected through a friction ball clutch g2 of ordinary construction with alanged disc z, which is fixed on a sleeve h 'mounted in the bearing member b2 and receiving within itself the shaft a2. A retaining clutch g3,

supported by a frame member b3, -is provided toprevent backward movement of the flanged disc h. Secured tothe sleeve k is a gear/2, which meshes with a gear a4 of the totalizing counter a3, to drive the same in for a pump' held in fixed position.

any usual manner, the totalizing counter being of any suitable or preferred construction.

The pointer a is connected with the shaft il? through a frietional connection indicated at a5, so that in the resetting operation, to be explained, the pointer may come to rest against the stop a on the dial plate a. For the purpose of're'setting the pointer to its initial position after each operation the shaft a2, at its further end, is provided with a gear preferably having unsymmetrical teeth as shown in Figure 7, to prevent locking, the gear being adapted to be engaged, inthe resetting operation, by a multilated gear fixed on a sleeve 3 (see Figure 3) which is mounted on a stud 1, supported by the frame member b. The sleeve 3 is provided with a ratchet wheel 4, engaged by a pawl 5 (see Figure l), to prevent reverse movement of the mutilated resetting gear The sleeve 3 also carries or has formed therewith a bevel gear 6, engaged by a bevel gear T on the resetting shaft 8. it is necessary that the mutilated gear 'be retained in a. fixed position during the operation of the counter so that the teeth of the gear will not interfere with those of the gear The gear is rotated' through the bevel gears and 1 from the resetting shaft 8. The hub of the gearl 1, which is mounted loosely on the shaft 8 is slotted for engagement with a pin 0 carried by the shaft *3 and a spring 10, acting against a shoulder of the shaft 8, presses theshaft normally outward, the pin 9 being, however, always in engagement with the slotted hub of the gear 1. In the shaft 8, near the a'metel of the gear 6 so that a half rotation of the shaft 8 effects a complete rotation of the gear 6, whereby the gear is actuated to effect the resetting of the counter. At the close of the half rotation of the shaft 8 the pin 11 is brought into engagement with the diamctrically opposite slot of the plate 12 and the shaftl is again The action of the spring 1 maintains the gear 1 always in engagement with the gear 6. At each operation of discharging gasoline `or other liquid, up to the'limit of the apparatus, the total counter is driven forward and after each such operation the pointer is reset to its zero or initial position.

'y It will be understood that the compensating devices herein described can be applied scribed herein.

to the ,operation of counting mechanisms of different construction from that indicated and can be varied in details of construction and arrangement to suit different conditions of use. Except as pointed out in the claims, therefore,'tlie invention is not limited to the particular construction shown and de- I claim as my invention: 1. The combination of a counting mechamsm for al pump, a continuously oscillating lever actuated with the pump, an adjustable fulcruin block for said leve-r, a second oscillating lever in opei'ative relation with the counting mechanism, and means whereby the said second lever is oscillated by the other lever.

2. The combination of a counting mechanism for a pump, a continuously oscillat` ,ling lever actuated with the pump, a second oscillating lever in operative vrelation -With the counting mephanism, means whereby the said second lever is oscillated by the other lever, and means including an adjustable fulcrum blockffor the first lever to vary thel angular movement of the second lever with respect to the other lever.

3. The combination of a counting mechanism for a pump, an oscillating lever actuated with the pump, a second lever pivotally mounted on the first, and a third lever operatively connectedto the counting mechanism and in operative engagement with the second lever to be oscillated thereby...

4. The combination of a counting mechanism for a pump, an oscillating lever actuated With the pump, a second lever pivotally mounted on the first, a third lever operatively connected to the counting mechanism and in operative engagement with the second lever to be oscillated thereby, and means to shift the fulcrum of the second lever to vary the angular movement of the l' third lever. Y

`5. The combination of a 4counting mechanism for a pump, a pinion actuated with the meansto shift the fulcrum of the first mention lever to vary the angular movement of the second menti ned lever.

7. The combination of a counting: mechanism for a pump, an oscillating lever actuated with the pump, a second lever pivotally mounted on the first, a third lever in operative engagement vvith'the second lever to be actuated thereby, and operative connections between the second lever and .the third lever, said connections including a friction clutch.

This specification signed this 19 day of. February A.'D. 1924. i

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