US2124486A - Warning device for liquid dispensing apparatus - Google Patents

Description

July 19, 1938. w. H. DE LANCEY WARNING DEVICE FOR LIQUID DISPENSING APPARATUS 4 Sheets-Sheet 1 Filed May 3. 19s? INVENTOR MERE /7. DEZM/CEY BY ATTORNEY S July 19,1938.

W. H. DE LANCEY WARNING DEVICE FOR LIQUID DISPENSING APPARATUS Filed May 3, 1937 4.Sheets-Sheet 2 INVENTOR MRRf/V P 1 141; y

4%,4IW WM ATTORNEY 5 July 19, 1938. w, H, DE LANCEY 2,124,486

WARNING DEVICE FOR LIQUID DISPENSING APPARATUS Filed May 5, 1957 4 Sheets-Sheet s INVENTOR W225 flpfli /z/ctr @48 7% ATTORNEYS.

I J y 9, 1938- w. H. DE LANCEY 2 8 WARNING DEVICE FOR LIQUID DISPENSING APPARATUS Filed May 5, 1957 4 Sheets-Sheed 4 INVENTCR I M/PRE/V /7{ pain/veer ATTORNEYS Patented July 19', 1938 UNITED STATES WARNING DEVICE FOR LIQUID APPARATUS DISPENSING Warren H. De Lancey, Springfield, Mass, assignor to Gilbert & Barker Manufacturing Company, West Springfield,.Mass., a corporation of Massachusetts Application May 3, 1937, Serial Nb. 140,367 Claims. (01.221-95) This invention relates to liquid dispensing v pumps for gasoline and the like of the type in which an indicating register is provided for displaying the quantity of gasoline dispensed 5 For accurate service from such a pump it is desirable that the register be reset to zero before each new dispensing operation.

In the form employed with the present invention the register is reset to zero by a manual operation of the pump attendant independently of starting the pump. While the attendant can usually be relied upon to effect this manual operation of resetting before starting a dispensing operation, the present improvement is designed to prevent the attendant from inadvertently neglecting the reset. In its general aspect the means provided for accomplishing this purpose comprises an audible signal such as a bell which rings only at such time as the pump may be started for operation without having previously resetthe register to zero. Ifon the other hand, the reset is performed before starting the pump no signal will be given. In other words, the normal and proper operationof the pump will prevent the giving of any signal, and the. attendant will be Warned only, when by inistake he has neglected to operate the.reset. Furthermore, provision is made so that-if the attendant starts up the pump without resetting the register the bell will continue ringing until either the pump is stopped or the reset is made. The resetting operation if performed initially will prevent a subsequent signal, and if performed after starting the pump, will stop the signal so that the dispensing may'then be proceeded with in proper manner. Referring more particularly to the drawings, Fig. 1 is a front view of a complete pump with the front panel partly broken away to show some of the interior parts;

Fig. 2 is a. side view of the same showing some of the principal interior parts in dotted lines;

Fig. 3 is a view approximately full size of the cooking and release mechanism for the bell signal showing the position of the parts with the motor switch off,'the fullline position of the toggle being prior to reset, and the dotted line position ofsaid toggle being after a reset operationy Fig. 3A is a view of the bell, the broken off connecting rod IS in this view being understood as an extension of the rod IS in Fig. 3;-

Fig. 3B is a view of the motorswitch, the

[55 broken off connecting rod l3 in this figure being understood as an. extension of the rod I3 in I Fig. 3;

Fig. 4 is a similar view with the motor switch on after a failure to.'reset whereby the bell is ringing; and

Fig. 4B is aview of the motor switch, the I broken off connecting rod I3 in this figurebeing understood as anextension of the rod l3 in Fig. 4;

Fig. 51s a similar view with the motor switch on after proper reset with the bell not ringing.

Fig. 5A is a view of the bell, the broken off connecting rod IS in this view being understood as an extension of the rod l9 in Fig. 5;

Fig. 5B is aview of the motor switch, the broken off connecting rod IS in this figure being understood as an extension of the rod l3 in Fig. 5.

Referring more particularly to Figs. 1 and 2, the pump casing is indicated at. l, and within said casing are suitably arranged the operative parts of the pump comprising'a combined motor and pump unit 2 which draws liquid such as gasoline up through pipe 4 from a source of being fixed to a handle shaft H and a projection III of said handle I0 is arranged so that when the nozzle guard 8 is in its position of rest upon the support 9 the switch handle l0 cannot be turned to on position. An arm l2 fixed to the handle shaft I] is connected by link l3 to. an arm M which operates the motor switch within the casing 3. 'In the position shown in Figs. 1 and 2 the handle Ill and motor switch are in off position. v

The pump motor has its shaft extended upwardly from the casing 2 to provide a rotating stub portion l5 suitable as a friction driving element. A mechanically operated signal bell-l6 is carried on a swinging arm I! pivoted at l8 on the frame of the pump casing and itwill be understood that said bell is operated for ringing by the rotation of its friction wheel l5 when the latter is swung into running contact with the rotating stub shaft |5. The supporting arm H for the bell I6 is connected by link I9 to one arm of a trip member 26, only a portion of which is shown in Fig.2, and the more detailed operation of which will be later described in connection with the other figures of the drawings.

Arranged within the pump casing is a suitable register indicator 22 Which-is operated through shaft 23 from the meter 6 whereby in the usual manner said register will indicate the quantity of gasoline being dispensed through the hose 1.

The form of register 22 herein shown is of the well known computer type with dial indicators 24 for displaying the quantity of gasoline dispensed both in terms of gallons and in money cost. 25

- is a reset handle fixed to a reset shaft 26 and the latter extends across the pump casing so that one end of said shaft 26 is adjacent the trip member 2|] above mentioned. It will be understood.

that the reset shaft 26 is provided with the necessary elements for coaction with the register 22 to reset the dial figures thereof to zero whenever the and 5, these show in detail the several parts of the segment plate 38.

therein studs or rollers 39, 48 and 4|.

cocking and release mechanism for giving a signal. Pivotally mounted at 28 on bracket 2| which in turn is fastened to the right side of the pump casing as viewed in Fig. 1, is the trip member 20. This is a two-armed lever, one arm 21 of which is connected by spring 29 to the bracket 2| whereby the trip member tends to rock in a clock- Wise direction. A stop lug 36 on said arm 21 limits the extent of this movement by abutting against the hub of a cam collar 3| which is fastened to the end of the aforesaid mentioned reset shaft 26, When the reset shaft 26 is re-' volved to reset the register it turns in the direction of the arrow (Fig, 3) and during this revolution a cam'32 on the collar 3| acts against the stud 30 to latch the trip member 21 into the position shown in Fig. 3. This may be termed the holding position of the trip member 21, since it holds the bell |6 out of .ringing position, The trip member'21 is held in this holding position by a latch pawl 35 which is pivoted at 36-upon a rocking beam 33, the latter being pivotally mounted at 34 upon the bracket 2 I. A latch pawl spring 31 yieldingly holds the latch pawl 35 in its position shown in Fig. 3.

A bifurcated segment plate 38 straddles the rocking beam 33 and is also pivotedat 34 upon,

the bracket 2|, The segment plate 38 carries Combined with the plate 38 to form a toggle is a rod 42 pivotally connected at one end at 4| with said The other end of said toggle rod 42 is slidably received within a rocking pivot studf44 extending from the bracket 2 I. A coiled spring 45 under compressed tension isinterposed between said pivot stud 44 and a shoulder on the rod 42 tending to hold the segment plate 38 in either one of its two positions. In the full line position'shown in Fig. 3, which may be termed the cooked position of the toggle 38, 42, the roller 40 of plate 38 bears against the rocking beam 33 tending to rock it clockwise. When the plate 38 is in its dotted line position of Fig. .3 which may be termed. the uncooked position, the roller 4| of said plate 38 bears against the rocking beam 33 tending to rock it counterclockwise. The rocking movement of beam 33 is limited by one end 54' thereof abutting the hub of cam collar -in the position shown in Fig. 3.

3|, and the other end 54 thereof abutting the hub of cam collar 46, the latter being fixed to the switch handle shaft The cam collar 46 has formed in its surface a recess 41 which when it arrives opposite the end 54 of said rocking beam 33 and assuming said toggle 38, 42 to be in cocked position, allows said beam to rock clockwise suificient to release the latch pawl 35 from the arm 21 of the trip member 20 as shown in Fig. 4. 'The switch handle l8 and its shaft H are limited in movement between on and off position by means of a stop lug 58'fixed to the bracket 2| and coacting stop lugs 48 and 49 which are fixed in the handle shaft Aretractable pawl 5| .is pivoted at 52 upon the cam collar 46 and a spring 53 is arranged to normally .hold said pawl 5| outwardly from said. cam collar The cam collar 46 is suitably recessed to permit said pawl 5| being depressed therein so.that it does not substantially project from the surface of said cam collar 46. The functional purpose of said pawl 5| is for throwing the toggle 38, 42 from its dotted line or uncooked position to full line or cocked position as shown in Fig. 3 whenever the handle I is operated from on to off position. On the other hand, a revolution of the reset shaft 26 in the direction of thearrow for resetting the register to zero carries the cam 32 against rollers 39 and 40 of said plate 38 and acts to throw the toggle 38, 42 from its full line to its dotted line position as shown in Fig. 3. It will be understood that the cam 32 lies in a plane behind the beam 33 so as to act against the rollers 39, 40 and stud 30 Without interference with said beam 33. I

The operation of the above described mechanism is as follows: Assume that the parts are as shown in full lines in Fig. 3 wherein the motor switch handle is in 01f position and actuating mechanism for the bell is latched in inactive position. This is the position of the parts after a dispensing operation and after the switch handle has been turned off and nothing further has been done by the attendant. In other words, the attendant has not yet reset the register to zero and the toggle is in its cocked position ready for action.

Under such circumstances the attendant should properly reset. the register before starting the motor for a new dispensing operation. If he fails to do this and turns the switch handle on the parts will take the position shown in Fig. 4 where it will be seen that bell actuating mechanism is making the bell ring. This is due to the fact that the toggle 38, 42 has been left in its right hand or cooked position tending to rock the beam 33 clockwise. When the recess 41 arrives under the end 54 of the beam 33, the latter rocks suificiently to remove latch 35 and release the trip member.

20 whereby the latter through its link l9 swings the bell support H to bring the bell wheel l into running contact with the rotating stub'shaft -|5 of the motor for ringing the bell.

The ringing of the bell warns the attendant that he has failed to reset. There are two ways for stopping the ringing'of the bell; first, the attendant may operate the switch handle-I8 to turn off the motor and thereby stop the drive to the bell, and second,-the attendant may operate the reset handle 25 to reset the register and shift the toggle to its uncooked position. The revolution of the reset shaft 26 causes the cam 32 to throw the toggle 38, 42 to its left hand or uncocked position as shown in Fig. 5. The cam 32 acting against lug 38 also rocks the trip member I 20 to swing the bell wheel l5 away from running contact with the stub shaft 50 and at the same timelatches said trip member 20 in said holding position as shown in Fig. 5.

While it is possible to operate the reset shaft for resetting the register either before or after the motor switch is turned on, the-proper way of operating the apparatus so that the bell signal will not be given is for the attendant when the switch handle I is off as shown in Fig. 3, to first operate the reset. This action throws the toggle 38, 42 to its uncooked or dotted line position in Fig. 3. Thereafter when the switch handle I0 is turned on the parts will take the position shown in Fig. 5, wherein the bell actuating mechanism remains latched in holding position with the bell out of action.

The reason for making the pawl yieldingly retractable from its projected position as shown in Fig. 3 is that when the attendant operates the reset shaft before turning on the motor switch,

the toggle 38, 40 is thrown to its dotted lineposition in Fig. 3. The subsequent turning on of the motor switch handle will cause the retractable pawl 5| to swing into its recess in passing the dotted line position of roll 4! and avoid throwing the toggleover to its right hand position during this on movement of the switch handle H). In this way the bell actuating mechanism trip member 20 will continue to be held in its latched holding position when the switch handle is turned on after a previous reset operation.

What I claim is: Y

I. In liquid dispensing apparatus of the type having a driving shaft and a pump for establishing flow, a register to indicate the quantity of liquid dispensed, and a reset device for zeroizing said register in combination, a control handle movable to on and ofi positions corresponding to the starting and stopping of said flow, a signal device comprising bell ringing means adapted for an operative connection with: said shaft, spring actuated means for making said bell ringing means operative comprising a trip member which has a holding position to hold said bell ringing means inactive, means operated by the movement of said control handle to on position to release said trip member and render said bell ringing means operative, and means actuated by the operation of said reset device prior to the on position movement of said control handle to prevent a subsequent on position movement of said handle from releasing said trip member.

2. In liquid dispensing apparatus of the type having a driving shaft and a pump for establishing flow, a register to indicate the quantity of liquid dispensed, and a reset device for zeroizing said register in combination, a control handle movable to on and 011 positions corresponding to the starting and stopping of said flow, a signal device compriisng bell ringing means adapted for an operative connection with said shaft, spring actuated means for making said bell ringingmeans operative comprising a trip member which has a holding position to hold said bell ringing means inactive, means operated by the movement of said control handle to on position to release said trip member and render said bell ringing means operative, and means actuated by the operation of said reset device to restore a released trip to its holding position.

3. In'liquid dispensing apparatus of the type I having a driving shaft and a pump for establish ing flow, a register to indicate the quantity of,

means, spring actuated means for rendering said.

signal means operative comprising a trip member which has a holding position to hold said signal means inactive, cocking mechanism adapted when released from its cocked position to release said trip member and render said signal means operative, means operated by the movement of said control handle to OK position to place said cooking mechanism in cocked position, and means operated by the movement of said control handle to on position to release said cocking mechanism from its cocked position.

4. In liquid dispensing apparatus of the type having a driving shaft and a pump for establishing flow, a register to indicate the quantity of liquid dispensed, and a reset device for zeroizing said register in combination, a control handle movable to on and off positions corresponding to the starting and stopping of said flow, signal means, spring actuated means for making said signal means operative comprising a trip member which has a holding position to hold said signal means inactive, cocking mechanism adapted when released from its cocked position to release said trip and render said signal means operative, means operated by the movement of said control handle to off position to place said cocking mechanism in cocked position, means operated by the movement of said control handle to on position to release said cocking mechanism from its cocked position, and means actuated by the operation of said resetting device subsequent to the on position movement'of said handle to restore said trip to its holding position.

5. In liquid dispensing apparatus of the type having a driving shaft and a pump for establishing flow, a register to indicate the quantity of liquid dispensed, and a reset device for zeroizing said register in combination, a control handle movable to on and off positions corresponding to the starting and stopping of said flow, signal means, spring actuated means'for making said signal means operative comprising a trip member which has a holding position to hold said signal means inactive, cocking mechanism adapted when released from its cocked position to release said trip and render said signal means operative, means operated by the movement of said control handle to off position to place said cocking mechanism in cocked position, means operated by the movement of said control handle to on position to release said cocking mechanism from its cocked position, and means actuated by the operation of saidresetting device prior to the on position movement of said handle to restore said cooking mechanism to its uncooked position whereby it will not be released by a subsequent on position movement of said handle.

WARREN DELANCEY.

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