US2139216A

US2139216A - Counting mechanism for liquid dispensing apparatus

Info

Publication number: US2139216A
Application number: US99893A
Authority: US
Inventors: Wydler Hermann
Original assignee: Firm Sauser A G
Current assignee: Firm Sauser A G; Firm Sauser A-G
Priority date: 1935-09-13
Filing date: 1936-09-08
Publication date: 1938-12-06
Anticipated expiration: 1955-12-06

Description

Dec. 6, 193s. 2,139,216

GOUNTING MECHANISM FOR LIQUID DISPEVNSING APPARATUS H. WYDLER Filed Sept. 8, 1936 4 SheeCS-Sheet l s 2. 8 a M. 4 I Il.; 5 W d8 ldgl: WM

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COUNTING MEGHANISM FOR LIQUID DISPENSING APPARATUS Filed Sept. 8, 1936 4 Sheets-Sheet 2 {WZ-ef A H. WY'DLER Dec., 193s..

COUNTING MECHANISM F'OR LIQUID DISPENSING APPARATUS 4 sheets-sheet '3 Filed Sept. 8, 1936 127' /fg l j?? l'zz vom/iol' @MZ j H. WYDLEF:`

Filed sept. a, 195s fiez COUNTING MECHANSM FOR LIQUID DISPENSING APPARATUS Dec. 6, 193s.

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Patented Dec. 6, 1938 COUNTING MECHANISM FOR LIQUID DIS- PENSING APPARATUS Hermann Wydler, Berne, Switzerland, assignor to the firm Sauser A.G., Soleure, Switzerland, a joint-stock company of Switzerlandy Application September 8, 1936, SerialNo. 99,893 In Switzerland September 13, 1935 4 Claims.

The present invention relates to liquid dispensing .apparatus `and more particularly pertains to a counting mechanism for liquid dispensing ap- .paratus comprising a volumetric meter combined with a counter for single 'deliveries having a Zeroizing mechanism and a totalizing counter. The invention consists in a device associated .with the counting mechanism which is set in advance so as to limit the quantity of liquid to be delivered. The setting member is returned stepwise during the dispensing operationto the .zero position, and the dispensing apparatus becomes inoperative when the setting member is .returned by hand beyond the zero position.

Ihe various objects and features of the invention will be more apparent upon a consideration of the following detailed description and the accompanying drawings wherein an exemplary embodiment of the invention is disclosed.

. In the drawings:

Fig. 1 `is a sectional View through the casing showing the driving gears developed according to line I'-I of Fig. 8, Y VFig. 2 is a horizontal sectional View through the casing showing the mechanism with the nu- Vmeral wheels and supports removed, Fig. 3 is a vertical sectional view taken on line III-III of Fig. 9,

Fig. 4 is a front view of the apparatus in its inoperative position, Fig. 5 is a vertical sectional view taken on line V--V of Fig. 9, Y Figs. 6 and 7 are detail views relating to the driving gear,

J Fig. 8 is a vertical sectional View taken on line VIII-VIII of Fig. 9,

Fig. 9 is a sectional view illustrating the assembly of the apparatus and Fig. 10 is a sectional view taken on line X-X of Fig. 9 showing the position of the value operating parts when the setting pointer is at zero.

Y According to Figs. 1, and 8 a hub |02 is rotatably arranged on one of the studs 26 which eX- tend between and connect the plates 2| and 22 of the casing. A pinion |03, having a gap |06 in its periphery is attached to the hub |02 and a cam |04 and a pinion |05 are also secured thereto. :The pinion |05 meshes with a pinion |01 fixed to a shaft |08 and a pinion |06, keyed to the shaft |08, meshes with the gear teeth provided adjacent one end of `a shaft |10. This shaft is rotatably mounted in a support ||2 and the plate 2| .and the opposite end is provided with gear teeth |I3 meshing with the gear teeth 4 arl, ranged on the inner edge of a ring member 11 having .an annular member 16 rotatably arl ranged therein. A handle ||5 serves for turning the ring 11 and acts as a setting index. The annular member 16 is provided with graduations H6 to indicate the quantity of liquid to be delivered and determined in advance. Apin I1 extending from the annular member 16 serves as a stop for the handle I5 to mark the inoperative position of the apparatus.

A shaft 29 is journalled in the plates 22 and 23 (Fig. l) and is connected by means of the coupling members 28, 8 and a shaft 6 to the volumetric meter which operates the single deliveries counter through the shaft 29. The shaft 20 carries a pinion 30 which meshes with a pinion 3| attached to a shaft 32 and drives this shaft in a determined ratio of transmission. The shaft 32 carries a helical gear 4| which as shown in Fig. 9 drives the shaft 43 carrying a four tooth pinion 44 to operate stepwise the numeral wheel 45 of a counter shown generally at I8 for the single deliveries.

In Fig. 4 the zero numerals of three numeral drums .of the single deliveries counter are visible in three openings 200 of the dial, while the totalizing counter 300 is shown in the lower part of the dial and visible through an opening therein.

The shaft 32 also carries a pinion 32a meshing with a pinion ||8. The pinion IIB is secured to a shaft H9 which carries a pinion |20 meshing with the teeth of a gear wheel |2| rotatably arranged on a shaft |22. The gear wheel |2| has two rims of teeth, one complete rim of teeth on the right side (Fig. 1) meshes with the pinion |20 and the other rim is provided with only two teeth |23, |23 which mesh during each revolution of the wheel |2| with the teeth of a pinion |24 to turn this pinion only a part of a revolution. The pinion |24 is rotatably mounted on the shaft ||9 and has on the right hand side (Fig. 2), where it meshes with the teeth |23 and |23', eight teeth (Fig. 6). The other rim of this pinion has four teeth |24 (Fig. '1), so that a pinion |25 when it is turned cannot mesh with' the pinion |24 when the latter is in the position shown. When the pinion |24 however is rotated, it moves also the pinion |25, and a pinion |25a, integral therewith. The pinion |25a meshes with the pinion |03. In order to maintain the pinion 12e when stationary always in the same position relative to the pinion |25 a pawl |26 is pressed by a spring |21 between the teeth of pinionr |24.

The shaft I3I carries an arm |33 (Fig.3) against which is pressed a roller |34 arranged 0n an arm |35 of an angular lever 92 which is pivcted on a pin 9| and the other arm 93 of the angular lever 92 serves as a locking bar for an arm 83 of the spring controlled lever 86. The lever 86 is secured to a shaft 82 and the lever arm 83 is urged towards the arm 93 by a spring 84.

The shaft 82 is coupled to a countershaft I2 shown in Figures 9 and 10. This shaft carries a locking pawl adapted to engage the periphery of a disk 1 which is xed to the meter shaft 6 and controls an arm |3 of a valve I4 for admitting liquid to the meter. In the zero position of the setting index the boss |28 lifts the arm |30 (Fig. 5) and rotates the shaft |3I to swing the arm 93 and unlock the arm 83 (Fig. 3). The arm 83 will then drop so far as will be permitted by an arm 1| which is secured to a shaft 68 and contacts by means of a roller 'I2 with an abutment having a sloping surface 81.

The operating of the setting device is as follows: If it is desired to withdraw some liquid from the dispensing apparatus, the ring I1 is rotated until the setting index ||5 marks the desired number on the annular member '|6. Thereby the pinion |09 is rotated by means of the pinions I|3 and Thus the pinions |01 and |05, the cam disk |04 and the pinion |03 are rotated. The arrangement is such that the disk |04 completes one revolution for one hundred measuring units. Likewise the pinion I25a has been rotated and with it the pinion |25.

The pinion |24 will not be rotated with the wheel |25 because, as is shown in Fig. 7, the pinion |24 is dimensioned for eight teeth but has only four teeth so as to leave gaps between the teeth and allow free passage of the wheel |25.

When the dispensing apparatus delivers liquid, the shaft 29 rotates and the pinion 30 turns the pinion 3| which rotates the shaft 32. The pinion 32a secured to the shaft 32 rotates the pinion ||8 and with it the pinion |20. T'he pinion moves the pinion |2| which at each revolution imparts to the pinion |24 by the teeth |23 and |23 a stepwise movement. At each step of the pinion |24 the pinions I 25 and |25a will be rotated one tooth and the wheel |03 will be turned back stepwise. Together with the wheel |03 also the cam |04, wheel |05, wheels |01 and |09, pinion ||0 and the setting ring 11 will be returned.

As soon as the ring returns to zero the boss |28 of cam |04 will engage the roller |29 and lift it to thus rotate the shaft |3I. By this ro tation the arm |33 will be moved to actuate the lever 35 by means of the roller |34 and rotate the shaft 9| (Figs. 7 and 3). Thereby the arm 93 moves out of reach of the lever 83 whereupon the spring 84 rotates the shaft 82. Then the arm |I (Fig. 10) secured to the shaft I2 will drop into the recess I0 of the disc 1 and valve I4 will be closed.

If it is desired to cut out the setting device the index ||5 may be moved to pass the zero point in a counterclockwise direction until it is stopped bythe pin II`I. By doing so the gear wheel |03 will have rotated until the gap |06 causes the gear teeth of the wheels |03 and |250, to be disengaged. Then the shafts |22, I|9 and 32 which establish the connection with the meter may rotate independently of the setting device.

Since the arm 93 is spring controlled as shown in Fig. 3 it moves as soon as the shaft 82 rotates again and holds the arm 83 and the roller 85 out of engagement with the cam 80 fixed to the shaft 29 by means of a sleeve 8|. Thus the delivery position of the apparatus is restored again.

The shaft 82 is coupled to the countershaft I2 which operates the pawl associated with the stop cam disk 'l on the shaft 6 to stop the volumetric meter at the zero position of the single deliveries counter, by actuation of the arm I3 to close the admission valve I4.

If it is desired to withdraw a new supply of measured liquid from the apparatus then the index 5 is again moved to the zero position whereby the wheel |03 will be rotated so far as to be engaged again by the pinion |a and the setting device can again be operated by the meter as hereinabove described.

What I claim as new is:

1. In liquid dispensing apparatus, an annular member having graduations thereon indicating units of liquid to be dispensed, a ring member rotatably mounted with respect to said annular member and having gear teeth along the circumference thereof, an index carried by said ring member, a pinion meshing with the gear teeth of said ring member, a disc` having a boss thereon adapted to be rotated upon rotation of the pinion and the ring member to a position corresponding to the units of liquid to be dispensed, a shaft adapted to be rotated when liquid is dispensed, gear means interposed between said disc and said shaft for rotating the disc and the ring member in a reverse direction, and said boss being adapted to engage means for stopping the rotation of the shaft.

2. In liquid dispensing apparatus, an annular member having graduations thereon indicating units of liquid to be dispensed, a ring member rotatably mounted with respect to said annular member and having gear teeth along the circumference thereof, an index carried by said ring member, a pinion meshing with the gear teeth of said ring member, a shaft adapted to be rotated when liquid is dispensed by the apparatus, a disc having means associated therewith for stopping the rotation of said shaft, said disc being geared to be rotated to a given position during movement of the index from the zero position on the annular member, and driving means interposed between said shaft and said disc for returning the index and the disc to the zero position.

3. In liquid dispensing apparatus, an annular member having graduations thereon indicating units of liquid to be dispensed, a ring member rotatably mounted with respect to said annular member and having gear teeth along the circumference thereof, an index carried by said ring member, a pinion meshing with the gear teeth of said ring member, a shaft adapted to be rotated when liquid is dispensed by the apparatus, a disc having means associated therewith for stopping the rotation of said shaft, said disc being geared to be rotated to a given position during movement of the index from the zero position on the annular member, and a non-reversible transmission mechanism interposed between said shaft `and said disc for returning the index and the disc to the zero position.

4. In liquid dispensing apparatus, an annular member having graduations thereon indicating units of liquid to be dispensed, a ring member rotatably mounted with respect to said annular member and having gear tee-th along the circumference thereof, an index carried by said ring member, a pinion meshing with the gear teeth of said ring member, a shaft adapted to be rotated When liquid is dispensed by the apparatus, a dise having means associated therewith for stopping the rotation of said shaft, said disc being geared to be rotated to a given position during movement of the index fromv the zero position on the annular member, driving means interposed between said shaft and said dise for returning the index and the disc to the zsero position, and said driving means including a gear adapted to be turned during the rotation of said disc, said gear wheel having a gap therein adapted to disconnect the driving means when the index is moved to a predetermined position.

HERMANN WYDLER.