US1644386A

US1644386A - Apparatus for washing receptacles

Info

Publication number: US1644386A
Application number: US51632A
Authority: US
Inventors: Ira H Kendall
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-04-11
Filing date: 1925-08-21
Publication date: 1927-10-04
Anticipated expiration: 1944-10-04

Description

v 1,644,386 Q 1927' I. H. KENDALL APPARATUS FOR WASHING R EEEEEEEE ES IN VENTOI? ks @WW A TTORIVE) Oct. 4, 1927.

I. H. KENDALL APPARATUS FOR WASHING RECEPTACLES '7 Sheets-Sheet 2 Original Filed April 11, 1922 INVENTOI? BWC0MWMTTOHNEYS Oct. 4,1927. I 1,644,386

I. H. KENDALL APPARATUS FOR WASHING REGEPTACLE 8 Original Filed April 11, 1922 7 Sheets-Sheet 5 INVENTO/f L /V/W A rromvsm.

I. H. KENDALL APPARATUS FOR WASHING RECEPTACLES Oct. 4, 1927. 1,644,386

Original Filed April 11, 1922 7 Sheets-Sheet 4 Ia Emma" In mm.

IN VEIVTOR f way/W ATTORNEYS 4 192 Oct 7 H. KENDALL APPARATUS FOR WASHING REGEPTACLES Original Filed April 11, 1922 7 Sheets-Sheet s INVENTOR ATTORNEYS.

Oct 7 l. H KENDALL APPARATUS FOR WASHING RECE-PTACLES Original Filed A ril 11, .1922

7Sheets-Sheet 6 A TTOHNEYS.

1 F- 7 V W m M 0 w i H \WTH 1 F w z 1 w 1 w fl w 1 I A I m z iA 7M1 a K w I J w. W i z z 4 M Q a y 1 W% l r1 H H 1 m F w i \Q T a; w w v fig fl fl fl 1,644,386 1927' l. H. KENDALL APPARATUS FOR WASHING RECEPTACLES Original Filed April 11, 1922 7 Sheets- Sheet 7 INVENTO/i VQW %44 A TTORNEYS Patented Oct. 4, 1927.

UNITED STATES 1,644,386. PATENT OFFICE.

IRA is. KENDALL, or POTSDAM, New YORK.

\ APPARATUS FOR WASHING RECEPTACLES;

original appliation filed April 11, 1922, Serial No. 551,570. Divided and this application filed August -21, 1925. Serial No. 51,632.

My invention relates to a new and improved machine or apparatus for washmg milk cans or'other. receptacles.

This application is a division of my previously filed application Serial No. 551,570

on April 11, 1922.

- One object of my invention is to devise an automatic apparatus of this character which shall be completely operative by 1 means of hydraulic power.

Other \objects of my invention will be setv forth in the following description and drawings which illustrate a preferred embodiment thereof, it being understood that the above general statement of the objects ofmy invention is intended to generally illustrate the same and not to limit it in any manner.

Figure 1 is a top plan view of an automatic machine.

Figure 2 is a section on the l1ne 22 of Figure 1. I Figure 3 is a view on. the line 33 of Figure 1 and shows the apparatus for removing a can from the turntable.

hand side of Figure 3. p Figure 5 is a view on the 11116 55 of Figure 1 and shows the apparatus for placing a can on the turntable. Figure 6 shows the device of Figure 5 in its horizontal position.

Figure 7 is a side elevation of the left of v Figure 6.

Figure 8.is a section on the line 88 of Figure 7.

Figure 9 is a section through the main lifting jack.

Figure 10 shows another embodiment having a difierent control apparatus.

The cans C are placed upon a chute mounted upon a 'frame F. This chute is prov ded with rollers 161 and it also has

side guldes

166 and 164. The cans are prevented from moving out of the chute by two pawls 100 wardly in the path of'the cans. by means of springs S, When-the cans roll 01? the chute they roll upon the cradle 101 pivoted upon the shaft 102. When the cradle isin the 5 it away from the position shown in Figure 8 pivot 105 being however, connected to the revolves, the hook 108 which forms Figure 4 is a side elevation of the right 1 which are normally caused to project inis inthe horizontal position, one of the cans' rolls upon the said cradle 101 and is stopped by the projection-111 of the cradle and the hook'end 112 of the guide 164. When the can rollsupon the cradle 101, it depresses the lever 103 shown in Figure 1, pivoted at 105 below the body of the cradle, the said frame member 167 which remains stationary.

As clearly shown in Figures 1 and 6, the revolution of the lever 103'around its pivot .105 causes the revolution of the lever 168 which is'pivoted at 106 to the cradle and has the latch 107 rigidly secured thereto. In the view shown in Figure 6, this revolution of lever 168 causes the latch 107 to revolve clockwise. When the latch 107 thus part of the yoke Y is released so that the said yoke Y is then free to revolve around the'pivot 109 r which is secured to the cradle. The yoke Y has the weight 110 secured thereto and this tends to revolve the yoke Y around the pivot 109 in the counterclockwise direction when the parts are in the'position shown in Figure 6. As will be later more fully explained,

the voke Y is originally in the inoperative position, and when it is released from latch 107, the weight 110 causes the yoke Y to revolve to the operative position shown in Fig. 6. u

The next operation is torevolve the cradle around the pivot 102 secured to the frame so as to bring the parts from; the position shown in Figure'6 to the position shown in' v Figure 5. This is done by the jack J shown' in Figure 5 having a piston therein ofthe ordinary type and this piston ispushed upwardly so as to revolve the cradle by means of the link169 which is pivotally secured to the cradle at the weight, 170', as clearly shown in Figures 5 and 6. This weight 170' tends to revolve the cradle back into its horizontal position whenthe hydraulic pressure 'in J has been released. When the cradle has.

been brought into position, the weight revolves the yoke Y around its pivot 109. in the clockwise direction so that the said 9 yoke is released from the can which is allowed todescend upon the carrier 116 secured to the rods 121. Y

When the cradle is rocked into vertical position the lever 168 contacts with the stop 169' secured to the stationary frame of the machine so that the said latch 107 1s re- \volvedin the clockwise direction in the view 'shownin Figure 5. This'releases the hook 6 108 so thatthe weight 110 is free to revolve.

' e fore free to move away from the can.

When the yoke Y moves into the full line position shown in Figure 5, it tends to remain in this position duringthe first period of the backward revolution of the cradle so that the latch 107 is free to drop and engage the pin 169upon the said hook 108. This locks yoke Y in its inoperative position until the can which rolls uponthe cradle again" revolves the lever 168-when it-is moved back to horizontal position when the weight 110 moves theyoke Y back into holdin position. I u The liydraulic control mechanism to automaticall 'lraise and lower the cradle is shown in detai in Figure 9.. The jack 123 has a piston 124 upon which the shaft125 is mounted. The shaft 125 has the control disc 147 'secured thereto. The; shaft 125 moves up and down through the bearing 170.

The cylinder of the jack 123,--which is "I mounted within the tubular frame 11 8,- has apipe; 156 communicating with a suitable port at th e upper end thereof. The bottom I ofthelpipe 156 communicates by' means of a suitable port; with a casing 171' of the conytjrolivalve 153. This v lve 153 is composed jof'jthree superposed an spacedpiston parts separated by intermediate portions of, small-- er diameten -The pipe 156 also; 'communi- 1. f with the upper end of the valve casing .-by;means'of the cross pipe 172.- "The: pipe 5 155 is -connectedgto "any suitable source of. s water under ressureand' this commu'nicates 5? with 'the-vave casing 171 by means of av I suitable port as shown; The pipe 155' which i is the outlet or drain pipe for the valve, casing '171 is connected to a y suit- Nable outflow or Ithelikef, preferably to; .the fresh'iwater tank U I bf-the washing system for-the "cans. q p i I The bottom of the-jack 123 communicates "by asuitable port with the elbow pipe-157 and the top of this pipe communicates with I the. valve 'casing' by means of theportj173f Said pipe 157 is also connected withvalVe v casing 171 by cross pi e .158. The-bottom I of thevalve .casin .a socommunica'tes means, of a suitab e port with .a .pipe 152.

Iwhich is controlled by'meansflofan inter its operative. and

.the machine. K v I e .WhG the valve 127 is opened and a corresponding evalve which isnot 'shown in mediate piston valve 132 which is acted upon by means of the tension spring 150, connected to the valve rod 149 of the said valve 132. r Y v 3 As clearly-shown in Figure 9, the curved valve rod 149 has an extension 146 pivotally secured thereto at 148 and an intermediate collar. 174 can'contact with the control disc 147. The extension 146 isnormally held in l the vertical position so that the collar-174,

can engage with disc 147, by means of the compression spring S, and a pin is provided as shown in Figure 9 so as to prevent the said'extension 146 from being revolved fromthevertical position in the counterclockwise direction. The casing of the valve 132 is connected by means of a suitable port to the pipe 131' and this is connected to the vertical pipe 130. The pipe is con-' nected at the upper end thereof to the jack 175 shown in Figure 1 and which has therein will be more fully explained hereafter. The bottom of the pipe 130 communicates by means of a suitable ort with the. bottom of 'a valve casing 134 w ich has therein a valve ;177 provided with three piston-like parts.

The pipe 126 controlled by an ordinaryhand valve 127 is connected to any suitable source of water under pressure and an outlet pipe 177 .is providedfor the said-valve casing l34gand the said oulet pipe 177 is preferablyconnected to a freshwater tank for the washing system.

- A verticalpipe'l36 connected to a cross pipe 137 terminates in two ,branches' 135 which are vconnected to the valve casing 134 by means of suitable portsand the pipe. 137

is connected as shown in Figure 2 directly to the jack J which serves to remove the washed cans from the turntable and to place them uponthe outlet chute which willube later. more fullyv described. The pipe 114 branches ofi from the upper part of. the pipe 137 shown in Figure 2 and this is connected to the jack J clearly shown in Figure 5, which,actuates-thecradle for lifting the cans from the inlet .chuteand for placing'them Jupon the, 'c arriers of the turntable 176. When the machine is about to be operated the piston 142, the movement of which 'intermittently revolves the turntable 176 as Ill the'valve 127 is closed and the turntable is in its upper position with the piston 124 in the posltion shown in Figure 9. When the iston 124 is in its top position,

. the valves 7 and 153 are in the position shownin F gure 9 which shows what maybe called the initial or starting positiontof thedrawings; is opened in the pipe 155, the

jwater entering through pipe 155 cannot pass into thepipe 172, but it can pass through pipe 157 below'the piston 124. Hence,

if for any reason the piston 124 is not in its uppermost position, it will be rapidly forced to this uppermost position. If for any reason the said piston 124 is not in the position shown in Figure 9, then by opening the valve of pipe 155 first, it will be moved to this top position. The @drain water passes out through pipe 156 to the bottom thereof and out through pipe 155.

The water entering through the pipe 126 enters the valve casing 134. As clearly shown in Figure 2,. the valve rod 133 is provided with an intermediate collar 127 and a top collar 178 and the control disc 147 engages this collar 178 and moves rod 133 to the position shown in Figure 9 when the piston 124 is moved to its top position. A guide member 179 is provided at the top of the tubular frame 118 and this guides the movement of the curved sliding valve rod 133. If the piston 124 has been moved to its top positionand the valve 127 is then opened, the water entering through the pipe 126 passes out through the pipe 129 into the pipe 130 and upwardly to the jack 175 and pushes the piston 142 outwardly. This piston 142 is connected by'means of the link 144 to the lever 143 pivoted at the center of the mechanism and this lever 143 has the ordinary spring pressed pawl 180 which cooperates with the ordinary ratchet disc 181 connected to the turntable shown in Figure 9, for example, in the ordinary manner.

The lever 143 has an arm 145 clearly.

" shown iii-Figures 1 and .9 and the revolution of the lever 143 causes the arm 145 to move the extension 146 of thelever 149 away from the control disc 147 and into the dotted line position shown in Figure 9, overcoming the force of the compression spring S. The

tension spring 150 immediately lowers the valve rod 149 so that the collar 174 cannot the pipe 152 and can therefore enter thebottom of the valve casing 171 below the bottom piston part of the valve 153. The

valve 153 is thereupon pushed upwardly until the top of its rod contacts with the top of the casing 171.- It is understood thatthe drawings are largely diagrammatic and the port of pipe 158 'and then out'through pip'e 155. x

When the turntable has descended to the bottom of its .path. the control disc 147 strikes the collar 127 as shown in its lower position in Figure 2 and this causes the valve rod 133 to be depressed until the top piston port of valve 177 closes the port of upper branch of the pipe 130 while the intermediate piston port of valve 177 opens the port of upper cross branch 135 and closes the port of lower cross branch 135 and at the same time the bottom piston port of the said valve opens the port of the lower branch of the pipe 130.

As is clearly shown in Figure 2, when the turntable is depressed one of the carriers 158 has depressed the When the turntable descends with its carriers 116, one of these carriers 116 revolves the lever 158 in the counterclockwise direction until the said carrier 116 passes beyond the said lever 158' leaving the said lever 158 I free to. revolve in the reverse or clockwise direction. The lever 158 is so weighted that its left end tends to project within the .path of movement of carrier 116.

3 When the lever 158 has been revolved so that the pin '186 is at the bottom of'its movement, then the rod 185 has been depressed so that the piston valve controlledt thereby has opened the'port of valve casingv 190 shown on the lower left side of Figure I 2 so that communication is established between the two branche's'ofthe pipe 137 and the two pistons 138 of the jacks J and J are thereupon moved outwardly so as to upwardly rock the

twocradles

101 and 101 Piston 138 of jack J. comes intocontact with supplemental control-rod 187 and moves it outwardly so as to upwardly roe-k lever 188 that any suitable cushioning means could be used for preventing the said valves or any other valves from being moved too violently. This-upward movement of the valve 153 opens the ports of

pipes

172 and 158 and closes the bottom port of pipe 156.

Hence the water under pressure can now flow into the pipe 156 and upwardly therein above the piston 124- and cause the turn-' table to be lowered while any water below the 'said piston 124 can flow out through pipe 157 and into the valve ca'sing through ,which raises the va1ve'rod185 by means of the collar 189 and moves the rod 185 back until communication is cut off between the branches of pipe 137 by means of the valve inthe casing 190. The lever 158 then has its left end above \the carrier 116 and=bctween thetbeveled fingers on the said carrier.

The rod 185/abuts a pin 186 on lever'158 and jacks J and J".have substantially the same icontrolsystem, However, the yoke Y which is pivoted to. cradle 101 has no weight secured thereto.

When the piston valve in the casing 190' has thus been upwardly moved so as to open the port 191, thenthe weights 170' and'141' I rock the respective cradles back to their horizontal position because the water in jacks J and J is free to escape by any suitable pipe not shown in the drawings, preferably to a fresh water tank. When the cradle 101 revolves back to its horizontal position, the pin 192 upon its link'193 contacts with'the leveri194 so as to revolve it clockwise and pull upon the link. 184 so *as to again open the valve in casing 182. .When the carrier 116 is raised, it revolves the lever 158' so as to move it awayfrom the stud at the topof rod 159, so that no effect is produced. As shown in Figure 9','the water under pressure in pipe 137 is now free pass through casing 182 and to enter the top port in valve casing 171, and move-the valve 153 back to the position shown "in Figure 9. The water under pressure in pipe 155 then enters casing 171, and passes out through port 17 3 .and passes through 157 below the piston124 so that the turntable again moves upwardly to contact with thecollar 178 and raises the piston valve 177 totheposition shown ,in Figure 9.

When the cradle 101 takes oil. a can, the

' said can contacts ,with the

projections

162 and 163 so-as to free it from the cradle 101 and allow it to roll downthe outlet chute,

having the guards 112. i y

As shown in Figures 2-4, the cradle 101' pivoted at 140 has. the lever 195 pivoted thereto at 196(and provided with a latch 1'97. In the positiqn shown in Figure 3, the lever 195 has been moved to the position indicated therein by the stationary projection 198.. The weight of the yoke Y which is 40- to fall into the dotted line position. As the pivoted to the cradle 101" at 199 causes ,it

cradle 101- is raised, the end of the latch .197 engages the pin 200 because the weight of said latch swings it into position and the latch 197 holds the yoke Y relatively inclined to the cradle 101. When, however,

I I the cradle 101' is aknostvertioal, the lever 195 secured to latch 197 and pivoted at 196 contacts with the pivoted lever 201 shown inFig'ure 3 and acted uponby the tension spring 202, and this causes the end of the latch 197 to release the pin 200 so that the {yoke can rock into the vertical, position shown in full lines in Figure 2 and engage acan. When the cradle 101" drops back to its horizontal. position, the lever. 201 can rock sufficiently to pass out of the .way.

.- The lever 194 really consists of two separately pivoted. parts, the upper part of which shown in Eigure2 can revolve counterclockwis'e freely with respect tothe lower part, but engages it as soonas it "is rocked clockwise. Asshown in Figure 6, the rod 269 connected to iston of jack J .is connected to weight 1 0? of 'cradle 101. .f

In the embodiment shown in Figure 10, the various valves, -etc., are all controlled by pilot jacks, such as the

jacks

175, 212, 215, etc. The rod 133' is equivalent to the rod 133 before described.

As 'clearly shown in Figure 2, the valve rod 133 is connected bymeans ofthe collar j 203 to a link which operates the bell crank lever 204 which controls the valves in

casings

214 and 215. These valves control the delivery of water for washing thel'cans. I

The jack 175 shown in Figure 1 is con- 3 nected at its outlet end, namely, at the end opposite the end shown adjacent tothe piston shown in Figure 1, to the pipe 136.

Wherever I refer in the drawings or description' or claims to any parts by num bers, it is to be understood that I do not wish to be limited to the specific form 0t saidpa-rts illustrated in the drawings or description.

I have showna preferred embodiment .of 'my invention but it'is clear thatnumerous changes and omissions may be made without departing from the spirit thereof.

I claim '1. In a machine for handling milk cans and other receptacles, a'turntable having turntable, said holding means being mounted upon movable supports, mechanism for carriers for said cans, holding means adapted to hold. the can located adjacent the said moving said supports towards and away from the said carriers, and automatic means for causing the holding means on one of said supports to release acan when the can is in proper position on the adjacent carrier and for causing the holding means upon the other support to simultaneously grip and hold the can'onthe carrier adjacent thereto.

2. In a machine for handling milk cans and other receptacles, the combination of a turntable, means for revolving the'said turn- 7 turntable, a cradle 101' pivoted adjacent the said turntable, a yoke Y pivotally secured to said cradle 101, means adapted to actu-. ate the said cradle towards and away from the said turntable, and means adapted to actuate said yoke Y to cause it to engage a can when it is in substantially the 17811310211 position. F

4. In a .machine. for handling milk cans and other receptacles, the cradle 101, the

yoke Y connected thereto, means for revolving the said yoke Y when it is in substantially the vertical position to cause it to release a can, means for locking the said yoke Y into said inoperative and releasing position and-means actuated by the weight of .a

- can placed upon the said cradle for releasing the said yoke so that it can be revolved to its operative position relative to the cradle... i I

5. In a machine for handling'milk cans and other receptacles, the cradle 101, the

yoke Y pivoted thereto and having. the

weight 110 connected thereto, the said yoke Y having the hook 108 provided with a pin 169 connected thereto, the latch 107 having two parts adapted to alternately engage the said hook 108 and the said pin 16,9 the ,lever 168 pivoted to the cradle and connected gto the latch 107, the stop 169 connected to the frame of the machine and adapted to engage with and revolve the lever ,168Kwhen the yoke Y is in substantially vertical position and the lever 103 pivoted .at 105 and adapted to be revolved by the Weight of a can placed upon the cradle 101, the said lever 103 being adapted to engage with and turn the said lever 168. I

6. In a machine for washing milk cans and other receptacles, a frame, a cradle pivotally connected to the said frame, means adapted to move the cradle from a horizon- ,tal position to a vertical position and also in the reverse direction, a yoke pivotally. connected adjacent one end thereof to the.

said cradle so that said yoke tends to swing to the vertical position and to engage a can when the said cradle is in its vertical position, said yoke having a pin, a lever pivoted to said cradle and having a latch connected thereto so that said lever and said latch move in unison, said latch being adapted to engage said pin while said cradle is being moved from its horizontal position to its vertical position so as to maintain said yoke inclined with respect to said cradle, a stop connected to the frameof the machine and. adapted to actuate the lever totcause said latch to release said pin when said cradle is Y in substantially the horizontal position.

' 7. In a machine for handling milk cans and other receptacles the combmation' of a ft 125 having the carbe first moved tosubstantially the upper part of its said jack, to then' cause the partial revolution of the said turntable, to then cause the said cradles and the parts connected thereto to be actuated so as to place a can upon one of the said carriers and remove a can from another of the said carriers and to then cause thesaid piston 124 to be low cred substantially to the bottom of the jack 123, and to be then raised to its upper position before mentioned.

8.. In a machine for handling milk cans and other receptacles, a turntable '176, a shaft 125 uponwhich said turntable 176 is mounted, a ratchet 181 connected to said shaft 125, the lever 143 pivotally mounted upon said shaft 125- and having the pawl 180 adapted to engage the said ratchet 181,

the jack 175 having-a piston 142, the link 144 connecting said piston 142 to the said lever 143, the said' lever 143 having the extension 145, means for admitting water under pressure to. the said. j'ack 175 so as to cause the said turntable 176 to be turned for a portion of a revolution, the cradles 101, v

and 101', the jacks J and J having pistons respectively connected to ,said cradles and adapted to actuate them, the control means 146 adapted to be operated by the movement of the projection 145 to permit Water under pressure to be admitted into the said jacks J and J to move the said cradles towards said turntable and control means operated by the pistons of the said hydraulic jacks J and J for shutting off their connection with the water under pressure when they have reached the end of their movement, and means for then causing the said cradles to move back to the said horizontal position.

I 9. In a machine for handling milk cans and other receptacles, a turntable 176, a:

shaft 125 upon which said turntable is mounted the ratchet 181 connected to said shaft, the lever 143 pivoted on said shaft 125 and having the pawl 180 adapted to engage the said ratchet 181, the jack 175 having a piston'1'42, the link 144 connecting said pis-- ton to the said lever 143, the said lever 143 having the extension 145, means for admitting water under pressure to the said -jac'k 175 so asto cause the saidturntable 176to,

be turned for a portion of a revolution, the

cradles 101 and 101, the jacks J and J having pistons respectively connected to said cradles and adapted to actuate them, the

control means 146 adapted 'to .be operated by the movement of the projection 145 to permitwater under pressure to be admitted into the said jacks J and J t to move the 'said' cradles towards the said turntable, and

control means operated by thepistons of'the said hydraulic jacks J and J for shutting off theirconnection with the water. under pressure when they'have reached the end of "their movement, and means" for then causing thepsaid cradles to move back to the said horizontal position, and valve meansadapt-' ed to be operated by the movementof the.

said cradles back to'their horizontal position 1 to cause the "said turntable to be'lowered.

' 10. In a machine for handling milk cans and, other/receptacles, the turntable 176 mounted};upon the shaft 125," the jack 17 5 having-3a, piston 142 and means whereby the jmovemen of the piston 142 causes the intermittentj-j -partial revolution of the said turntable, the pilot valve 177, the inlet pipe 126 and the outlet pipe '17 7 connected to the-casing 134 of the saidpilot valve 177, the -

v pipes

130 and 136 communicating. with the i said casing 134 and with the said jack 175,

the'cross pipe,131 communicating With the casing'171 of the second pilot valve 153,

' separate pipe connections betweenthe said casing 171 and the top andbottom main jack 123, said jack 123 having vertically ;mov-

able piston 124 therein, said piston 124 being connected to the'shaft 125 the movement of the said second pilot valve 153 being adapted to control the flow of liquid under pressure in said separate pipe connections and the movement of the said piston 124, a valve con: trolling the cross pipe 131, means adapted toopen the said valve of the said pipe 131 1,e44,s8e

connected to the said jacks J and J and controlledby a valve and casing 190 and means controlled by the movement of the said turntable for opening thesaid valve and the said pipe 190 only after the said turntable has substantially reached the end of its lowering movement control'means adapted to shut the valve in the said casing 190 and 40 operated by the pistons in the said jacksJ I and J, the valve in the casing 182 controlling'the oonnection between the cross pipe 187 and the upper end of the casing 171 and means for actuating the said valve in the casing 182 when the said cradles are rocked back intheir horizontal position.

and other." receptacles, the combination ot a turntable 17 6, a shaft 125, said turntable 176 being mounted on said shaft 125 and having the carriers 116, a hydraulic jack 123 having a Vertically movable piston 1% connected with the shaft 125 and adapted to,

raise and lower said shaft, means for turning said turntable operated by another hydraulic ja'ck, and pilot valve means connected with said jacks and adapted to cause the piston 124 to be moved up and down'and to cause said turntableto be turned between 60.

each complete stroke of said piston 124.

In testimony whereofl atfix my signature. 7

IRA H. KENDALL,

11. In a machine for handling milk cans