US1315014A

US1315014A - doerfer

Info

Publication number: US1315014A
Authority: US
Publication date: 1919-09-02
Anticipated expiration: 1936-09-02

Description

1. A. 'DoERFR.

VENDING DEVICE. APPLICATION man ocms, I911. 1 1 5,0 1 4 1 Patented Sept. 2, 1919.

4 SHEETS--SHEET I.

J. A. DOERFER.

VENDING DEVICE. APPLICATION FILED oer-25.1911.

4 SHEETS SHEET 2.

a? a L w 14 7 LA. DOERFER. VENDING DEVICE.

v APPLICATION FILED OCT-25, I9H- 1,315,014. PatentedSept. 2,1919.

J. A. DOEHF ER. VENDING DEVICE. APPLICATION FILED coma, I917.

Patented Sept. 2, 1919.

4 SHEETS -SHEET 4.

I UNITED STATES PATENT OFFICE.

' Jaime. rename, or ro'a'rnmn, cancer.

vnnnme DEVICE.

Specification of Letters Patent.

Application filed October 25, 1917. Serial to. 198,551.

To all whom it may concern:

. Be it known that I, JOHN A. DoER'rnR, a citizen of the United States, residing .at Portland,'State of Oregon, have invented certain new'and useful Improvements in Vendin Devices, of a speci cation.

'My invention relates to vending devices in general, andparticula'rly to that class of such devices as are usedfor dispensing which thefollowing is a measured quantities of liquids, it being especially adapted for use in dispensing gasolene at automobile filling stations,-an

compact, cheap. and reliable form of construction.

I accomplish the above objects and other desirable results by meansof the construction illustrated in the accompanying drawings, like characters-of reference indicating like v parts throughout the several views thereof, and inwhich:-

Figure 1 is a side elevation of my device,

the casing being broken away to best illustrate the construction. V

Fig. 2- is a plan view of my device,- parts being broken away to best illustrate the oonstructi-oni Fig. 3 :is'e diagrammatical perspective View of the coin actuated levers.

Fig, 4 is a diagrammatica'l perspective View of the whole measure latch.

Fig. 5 is a plan view of the fractional measure device assembled, certain parts being broken away for illustration. Fig. 6 is an elevation of the' gear and ratchet operating the fractional measure device.

' In general my invention comprises, first a plurality of slotsand levers corresponding respectively to coins of various denominations; second means whereby either of said levers independently may simultaneously close a switch and thus start a motor, and

also put' the fractional measure device into operating'position; third, means whereby said motor may be allowed to attain a predetermined speed and then place a' pumpplunger into operation; fourth, means whereby said pum plunger may make a predetermined num' r of complete strokes and then a fractional stroke'governed by said fractional measure device; and fifth, means whereby at the completion ofsaid fractional stroke of the plunger said 'fract onal measure device may open saidswitch and release said coin operated leversto return to their initial position.,-

In order that coins of various denominw tions mayfst-a-rt the mechanism I provide a plurality of

coinslots

7, 8, 9, 10 and 11, into which the suitable coin is placed, each of said slots being adapted to receive only its respective coin, as nickles, dimes, quarters, etc. 1

- Corresponding to each slot is a hand rod 12, which, upon being pushed closes the lower end of its respective slot,- and which is held in its initial position by a spring 113, as shown in Fig. 1..

.In alinement with each of said hand rods 12 is a corresponding push rod 14, each of said rods 14 starting at the innermost edge of its respective coin slot and'therefrom extendingiiiwardly, a

spring'15 being adapted to hold the rod 14 in its lnitial position, as shown in.; Fig. 1.

When said rods 14 and hand'rods 12 are each in their initial positions there is a space intermediate the respective ends thereof, said space registering with'the lower end Patentedsept. 2, 1919.

of the respective coin slot, so that an insorted coin slides down the slot and comes to rest upon its face intermediate Isaid hand rod 12and said push rod 14, the'icoin thus forming an operative-member between the hand rod 12 and the push rod 14, whereby a push upon said hand rod will operate said push rod.

Each of said rods 14 1s connectedby links 16 to a switch blade 17.

As shown in the drawings there is a switch for each of said rods 14, but it is evident to one skilled in the art that the several rods may be arranged to operate the H same switch if desired.

\ The swi h is closed by the operation of the rod through the agency of the inserted coin, and thus, started.

Upon each. of rods 14is a cam 19 which the electric motor 18 is.

coiiperates with a latch 20, said cam holding said latch open. until the movement of the rod 14 has accomplished the closing of the switch, whereupon said latch engages the end of said cam and thus holds the rod 14 termined speed it will lower stem'25, thereby releasing lever 26, which has been restmg upon the upper end of the stem 25, as shown in Fig.1.

Lever 26 will then be caused to drop by weight 27 thereon, and by means of shaft 28 and arms 29 thereon Wlll engage the two members of clutch 30. One member of clutch 30 is slidable but not rotatable upon motor shaft 31, and coacts with arms 29 to be longitudinally moved thereby upon said shaft 31.

The other member of clutch 30 is secured to a worm 32 rotatably mounted upon shaft 31, as shown in Figs. 1 and 2.

Said worm 32 meshes with a worm gear 33, which gear also meshes with rack teeth upon pump plunger 34, as shown in Fig. 1.

By this mechanism the pump is not started until the motor has attained a predetermined speed, regulated by the governor, thereby overcoming the losses of dispensed liquid incident to the slow movement of the pump plunger when starting.

In order that an exact measure of liquid may be delivered by one stroke of said pump plunger I mount thereon a pin 35 which will contact with lever 26, and by raising said lever will release clutch 30 when the proper in Fig. 4.

' teeth upon measure of liquid has been delivered.

Lever 26 when thus raised enters and is held by a latch 36, shown in detail in Fig. 4.

Said latch consists of forks 37 between which lever 26 enters, and a tongue 38 which is forced outward by the entering lever 26 and is then returned beneath said lever by the weight of reach rod 39 upon bell crank 40 which coiiperates withlatch 38, as shown When clutch 30 is thus the completion of the plunger 34, said plunger is returned to its initial position by means of weight 41 attached to cord 42, which cord is wound upon the hub of gear 43 which meshes with rack pump plunger 34, as shown in Figs. 1 and 2.

When plunger 34 returns to its initial position pin 35 contacts with lever 44 thereby withdrawingtongue 38 and releasing lever 26 from latch 36, thus reengaging clutch 30 which then causes plunger 34 to. make another stroke.

disengaged upon stroke of pump Upon that end of fractional measure device to be hereinafter described.

Each catch 20 is in the form of a bell crank, one arm of which forms the catch proper, and the other arm of which is pivotally attached to a corresponding ,j rod 46, which rods are slidably mounted in

bearings

47 and 48, as shown in Figs. 1, 2 and 3.

Mounted upon each of rods 46 is a collar 49, and intermediate said collar and bearing 47 is a spring 50, for the purpose of keeping its respective rod in its initial position with the catch 20 in contact with its respective cam 19, as shown in Fig. 1.

Each of rods 46 has fixed upon the end thereof opposite said catch 20, a wedge shaped contact piece 51, as shown in Figs. 1 and 3.

A clutch shifter 52 is pivotally mounted at 53, one arm of which engages a peripheral groove 54 in one end of a sleeve 55 freely mounted upon a shaft 56, as shown in Figs. 1 and 2, and in detail in Figs. 3 and 5.

Pivotally mounted upon the opposite arm of shifter 52 is a plurality of connecting rods 57, there being as many of said rods as there are coin slots.

The opposite end of each of said connectshown in-Figs. 1 and 2, and in detail in I Flg. 3.

sleeve 55 opposite groove 54 is one member of a clutch 59, the

other member of said clutch being secured to a shaft 56, as shown in Fig. 5, and intermediate said clutch members is a spring 60 adapted to keep said clutch members initially out of contact.

hen a coin has been inserted in the respective slot and the respective rod 14 has been moved so that cam 19 has passed over catch 20, the spring 50 will cause rod 46 to move toward shaft 56, thereby causing catch 20 to engage the end of cam 19, thus holding rodv 14 in its advanced position against spring 15, and with the switch 17 closed.

y means of its respective pin 58 and connectin rod 57 the movement of one of rods 46 by 1ts respective spring 50 causes clutch shifter 52 to move, thereby engaging the members of clutch 5 9.

The movement of clutch shifter 52 by any one of connecting rods 57 causes all the other connecting .rods to move in unison therewith, which they are allowed to do without moving their respeotive rods 46 by means of slots 61 in said connecting rods 57, as shown in detail in Fig. 3.

The engagement of clutch members 59 is thus accomplished by mechanisms independentlyoperated through the agency of the coin inserted, which coin becomes temporarily a member ofthe operating mechanism,

and the wedge or contact piece 51 corre-- sponding to said coinis moved toward shaft 56 and held-in such moved position by its respective spring 50, all the other contact pieces remaining in their initial positions.

en the coin has performed Its function as a temporary member of the operating mechanism, it is released by the return:

movement of hand rods 12, and falls into coin box 62, shown 'in Figs. 1 and 2.

The engagement of clutch members 59 secures sleeve 55 upon shaft 56, which shaft is rotated in the direction of the arrows.

To rotate shaft 56 I provide a gear 63 freely mounted thereon and meshing with a- .change gear 64.

Said change gear 64 meshes with a gear upon shaft .65, upon the opposite end of which is a gear 66 meshing with the rack teeth upon pump plunger 34.

By thistrain of gears the upward movement of plunger 34 rotates gear-63 according to the arrowsshown on shaft'56, and said shaft is also rotated by ratchet'teeth 67 with-.-

arms 70, there being one of said arms to correspond respectively to each coin slot and 55 an arms 70 rotate.

sleeve 55 is operated from the plunger 34,

contact piece 51, and said arms have various angular relations one vwith another, as shown in Fig. l, and in detail in Fig. 5.

Rotatably mounted upon each of said arms is a roller 71. adapted to contact with its res tlve contact plece 51, as the sleeve As has been previously described, the

and the angi ilar'position of the various arms 70 upon said sleeve together with the gear ratio between plunger 34 and gear 63 is such thatwhen the exact amount of liquid called for by the cein inserted has been delivered, the respective roller 71 ,will contact with its contact piece 51 and force the same away from the 56, thereby releasing catch 20 and allowing rod 14 to return to its initial ppsltioi and open the switch 17, "thus stopplug themotor 18 and bringing the entire mechamsm to rest.

.W hen rod 14 returns to its initial position pm 58 moves to that end of slot 61 farther removed from shaft 56 which frees rod 57 and shifter 52, and allows spring to disengage the-members of clutch 59. Sleeve 55 is then free upon shaft 56 and is returned to its initial position by means'of welght 72 hung from a cord 7 3 which o-pe'rates upon a sheave-74 secured to sleeve 55, as shown in Fig. 1.

An arm 7 5 upon that member of clutch 59 which is secured to sleeve 55 contacts with a stationary rest 76 when said sleeve has returned to its initial position.

The overnor 21 then causes rod 25 t0 rise and li members of clutch 30, whereupon weight 41 causes plunger 34 to lower into its initial position, when the mechanism is set for another. operation upon the insertion ofa coin.

By means'of this mechanism the plunger 34 will make several strokes while the sleeve 55 is making a partial revolution, and the plunger will be stopped when the proper roller 71 contacts with its respective contact piece 51, which latter was moved toward shaft 56 into a position for contact with roller.71,.as shown in dotted lines in Fig. 1,

, by the operation of hand rod 12 after inserting the coin in its proper slot.

- he gear 66 may be made of such a size as to allow the plunger 34 to make as many full strokes as desired and then any fraction of a stroke before bei stopped as above described. and thus, by simply chang-- ing the gear ,66 the mechanism may be set to compensate for the fluctuation 1n price of the liquid being dispensed, so that the amount delivered always exactly corresponds in value to thecoin inserted.

lever '26, and thus disengage the My invention may be made of any size and constructed of any materials deemed convenient and suitalble for axdevice of this character, and while I have illustrated and described a form of construction and arrangement of parts found desirable when -m-aterializing my invention, I wish to in elude in thisv application for Letters Patent all mechanical equivalents and substitutes that may fairly be considered to come within the scope and purview of my invention as defined in the appended claims.

Having described my invention so that 7 others skilled in the art may be enabled to construct and use the same, what I clalm as new and desire to secure by Letters Patent 1s whereby said governor will connect said motor'to saidplunger when said motorhas attained a predetermined speed.

strokes and fraction thereof.

1. In a device for vending liquids; a motor; a governor; a pump plunger; means .3. In a device for vending liquids; a motor; coin controlled means for starting said motor; a pump plunger; means whereby said motor maybe connected to said plunger when the former has attained a predetermined speed; means whereby the said plunmotor may-be automatically stopped when said plunger is thus disconnected.

4. In a device for vending liquids; a motor; coin controlled means for starting said motor; a pump plunger; a gear train intermediate said motor and said plunger; a clutch intermediate said gear train and said motor; a governor controlling the speed of said motor; means whereby said governor may engage said clutch when said go-vernor attains a predetermined speed; means whereby said plunger may disengage said clutch upon the completion of each stroke of said plunger; and means to return said plunger to its initial position upon the release thereby of said clutch.

o. In a device for vending liquids; a motor; coin controlled means for starting said motor; a governor connected tosaid motor; a train of gears intermediate said plunger and said motor adapted to operate said plunger from said motor; a clutch connecting said gear train to said motor; a lever operating said clutch; a member intermediate said lever and said governor whereby said governor regulates and determines the position of said lever; means whereby said plunger may disconnect said lever from said member, and move the former to disconnect sai-d clutch;.a latch to hold said lever after the same hasbeen moved by said plunger;

means to return said plunger to its initial position after said clutch has been released thereby; and means to release said lever from said latch when said. Eplunger arrives at its initial position.

' tor; a

6; In a device for vending liquids; a mopump plunger; a gear train intermediate said motor and said plunger; a clutch in said gear train; a governor; means whereby said governor may engage said clutch; means whereby said plunger may disengage said clutch at the completion of one stroke of said plunger; means to return said plunger to its initial" position; meansto retain said clutch disengaged and uninfluenced by said governor while said plunger is returning to its initial position; and means to reestablish connection between said clutch and said governor when said plunger arrives at its initial position.

7; In a vending device; a plurality of coin controlled push rods; a catch for each of said rods; a plurality of push rods, each operating one of said catches; a measuring device; a clutch operating said measuring device; a clutch shifter; a plurality of reach rods, all pivotally connected to said clutch shifter and eachslidably connected to its respective one of th last mentioned push ro s.

8. In a vending device; a motor; a coin controlled motor starting device; a latch to retain said device in operating position; a rotary member; arms secured to said member; contact pieces corresponding to each of said arms; means whereby when a predetermined amount of material has been delivered a certain one of said arms will contact with its respective contact piece; and means whereby said contact piece will operate said latch to release said motor starting device.

9. In a device for vending liquids; a pump plunger; a shaft; means to rotate said shaft from said plunger; a member freely mounted upon said shaft; arms secured to said member; a clutch to secure said member upon said shaft; coin controlled means to simultaneously operate said plunger and said clutch; contact pieces cooperating with said arms; means whereby contact of one of 'said arms with its respective contact piece and release said means to return said plunger to its position; and means to return said mounted member to its initial posiwill stop said plunger clutch; initial freely tion.

In Witness whereof I claim the foregoing as my'own, I hereunto afiix my signature in the presence of two subscribing witnesses, at Kent, county of Sherman, State of Oregon, this 29 day of August, 1917.

JOHN A. DOERFER. Witnesses:

FRED HAYNES, HENRY SOHADEWITL.