US1287195A - Excavating and loading machine. - Google Patents

Description

E. .I. 'BIRKETT. EXCAVATING AND LOADING MACHINE.

APPLICATION vmin mun. I9l5 1,287,195. v Patented Dec. 10, 1918.

5 SHEETS-SHEET I.

E. J. BIRKETT. EXCAVATING AND LOADING MACHINE. APPLICATION FILED APR.23. 1915.

1,287,]. 95., Patented Dec. 10, 1918.

5 SHEETSSHEET 2.

E; J. BIRKETT. EXCAVATING AND LOADING MACHINE.

APrucAnou FILED mus. 191:.

1,287,195. Patented Dec.10, I918.

5 SHEETS-SHEET 3.

- E. l. BIRKETT. *ixcAvA'nm; mo Lo/gomc MACHINE.

APPLICATION FILED APIL23- l9l5- Patentd Dec. 10, 1918.

5 SHEETS-SHEET 4.

E...I. BIRKETT. EXCAVAHNG m0 powm MACHlNE. APPLICATION FILED "8.23. ISIS.

1,287,195. v Patented Deon-10,1918.

5 SHEETS-SHEET 5.

UNITED STATES PATENT OFFICE.

EDWARD J'. IBIRKETT, 0F RACINE, WISCONSIN, ASSIGNOR TO .1. I. CASE THRESI-IING MACHINE COMPANY, OF RACINE, WISCONSIN, A CORPORATION.

EXCAVATING AND LOADING MACHINE.

Specification of Letters Patent.

Application filed April 23, 1915. Serial No. 23,397.

' '1 0 all whom it may concern:

'of Racine, county of Racine, and State of lVisconsin, have invented certain new and useful Improvements in Excavating and Loading Machines, of which the following is a full, clear, and exact description.

The invention relates to excavating and loading machines and seeks to providean improved apparatus for rapidly excavating and loading earth and like material lnto wagons, a further object of the invent on being to provide an improved excavating and loading machine which can be readily transported. The invention consists of the features "of improvement hereinafter set forth illustrated in the preferred form in the accompanying drawings and more particularly pointed out in the appended claims.

Figure 1 is a view in elevation of the improved apparatus. Fig. 1 is a. view in elevation of the excavating scoop. Fig. 2 is a plan view of the apparatus looking in the direction of the arrows22 of Fig. 1. Fig. 2 is a plan view of the scoop. Fig. 3 is a horizontal section of the apparatus illustrat ing the operating mechanism. Fig. 4 is a section on the line 41 of Fig. 3. Fig. 5 is a detailed section on the line 55 of Fig. 3. Fig. 6 is an inverted plan view of the parts shown in Fig. 5. Fig. 7 is a detailed section on the line 77 of Fig. 5. Fig. 8 is a partial view in side elevation with the parts of the apparatus in position for transportation. Fig. 9 is a detailed plan view with the parts shown in section on the line 99 of Fig. 8. Fig. 10 is a detailed section on the line 101O of Fig. 8. Figs. 11, 12 and 13 are detailed sections on lines 1111, 1212 and 13-13 respectively of Fig. 1.

For convenience in transportation, the machine is mounted upon front and rear axles l0 and 11, having wheels 12 and 18 thereon.

'The frame of the machine comprises side lower ends of these bars extend downwardly somewhat below the front ends of the sills. The frame bars 15 and 16 are connected at intervals by transverse bars 17, 18 and 19. Sheet metal plates 20 riveted or otherwise suitably secured to the side sills and frame bars inclose the operating mechanism.

An inclined guide-way or trough 21 for the excavating scoop is provided at the upper front portion of the machine. The trough is formed of sheet metal and is preferably provided with flaring side walls (see Figs. 11 and 12) and it is secured to correspondingly shaped supporting bars'22 which extend between the inclined frame bars 16., which are preferably Z-shaped, as shown.

- Preferably, the bottom and side walls of the trough or guide-way are provided with longitudinally extending wooden boards 21, which reduce the friction between the trough and the scoop as the latter is, drawn up- .wardly. The guide-way or trough is provided at its lower end with an adjustable section 25 (see Figs. 1, 2, 8, 12 and 13,) which, in operation, rests upon the ground, as shown in Fig. 1, but which can be raised out of the Way, as shown in Fig. 8, when the machine is moved from place to place. Like the main portion of the trough'or guide-way, the extension 25 is formed of sheet metal and is secured at its side edges to a pair of Z-bars 26 which rest upon the horizontal flanges of the fixed. frame bar 16 and which are held in place thereon by angle strips 27 fixed to the bars 16 and overlappingthe upper edges of the "ertical flanges of the bars 26. lhe extension is thus adapted to slide longitudinally of the main portion of the guide-way to and from the ground. Preferably, as shown, the sheet metal body of the extension 25 is provided with edge portions 28 which extend over the bars 16. The lower end or foot of the trough extension 25 is outwardly curved in longitudinal direction and is provided with lateral flaring portions 29 (see Figs. 1 and 2), the latter being provided with convex or rounded upper faces. The outwardly curved lower end of the extension 25 and the opposite portions 29 contact with the ground, and the latter are reinforced with castings 30 (shown in dotted lines in Fig. 1).

The extension of the guide-way or trough carries suitable means for guiding the excavating scoop and the lines connected thereto.

Patented Dec 10, 1918.

For this purpose, a pair of comparatively opposite sides of the guide-way. These drums are mounted on shafts 33, which are journaled in their lower ends in the castings 30 and at their upper ends in brackets 34.

. These brackets are secured to' the ends of around one or the other 0 brace bars 35, which extend outwardly from the bars 26.

The guiding drums 32 are thus arranged in position at a' slight angle to the vertical, on opposite sides of the entrance to the guide-way. Between the upper ends of these guiding drums extends a smaller transverse guiding roller 36'which is journaled at its. ends in brackets 37 on the bars 35.

The excavating scoop 38 shown is of ordinary constructlon andthe drag line 31 is connected to the bail 39 thereof. Thence the drag linepasses between the guidin drums 32 and beneath the guiding roller 36%; wardly at an incline above the guide-way to a guiding pulley 40 at the extreme upper end of the machine, and thence the drag line passes downwardly over a guide pul ey 41 to a winding drum 42.

' The arrangement of the guiding drums 32 andthe guide roller 3.6. is such that the drag line can extend .laterally from the en-' trance to theguide-way at a sharp angle thereto, so that a large area can be excavated without movin the machine. When the drag line exten s laterally at an angle to the chute, the dra rope passes the guiding drums 32. These drums 32, as most clearly shown in Fig. 2, form the opposite .side walls of a flaring throat at the entrance of the trough-shaped guide-way and serve to properly direct the scoop into the guide-way when the scoop approaches the guide-way at an angle. thereto. As the scoop is thus drawn toward the entrance of the guide-way its. bail will strike one or the; other of the guiding drums 32, but as these drums are of considerable size, the scoop will .be'properly deflected and will pass into the entrance of the trough-shaped guide-way. The

drums 32 and the roller 36 also serve to properly guide the drag line 31 as the scoop passes to and from the entrance of the guide-.

The return line 43 is connected to the rear end of the excavating scoop and extreme upper portion of the machine and its hence uptends therefrom over a guide pulley 44 that is carried by an anchor 45 and can be fixed in any desired position within the range of the machine.

From the anchor pulley 44 the return line passes upwardly over a guide pulley .46 at the upper portion of the machine and thence downwardly to a winding drum 47.

The guide pulley 40 is located at the'exinner periphery is substantially in line ith. the center of. the guide-Way, and the guide pulleys 41 and 46 and the winding drums 42 and 47 4 are located atone sidei of the 11121 chine. Preferably, as shown, these guide pulleys and winding drums are duplicated at opposite sides of the machine, as most clearly shown in Fig. 2, so that the draft and return lines'for the scoopmay be duplicated and the machine adapted to operate with two scoops.

[The guide pulleysnfi, 41 and. 46 are neces? sarily arranged at a considerable height'and I for convenience in transportation are preferably mounted .on an adjustable frame so that they can be lowered out of the way when the machine is'moved from place to place. This frame comprises a pair of in: clined side bars 48 havi-n upper converging end port-ions connect by a member 49 to which the ide pulleys 40 are swiveled. The-guide pu leys 41 are fixed to the. bars .I 48 as shown in Fig. 2. The guide pulleys 46 are swiveled to short pieces 51 which. project laterall from the lower ends of the bars 48. he extreme lower ends: of the framebars 48 slidably engage the out turned flanges of the fixed frame bars '16-. The upper ends of the frame bars '48- are pivotallyconnected to th uppere of brace bars 52. The lower ends of the latter are pivotally connected to the upper ends'of .the fixed frame bars 15. Bracerods that are fixed to the extreme upp'erendpof the-guidin trough. The rods 53 are de- -tachably botedto the links'52 and can be disconnected so that the frame which car-- rice the guide pulleys can be lowered, as v shown in Fig. '8.- When this frame is lowered, the bars or links 52 swing) downwardly and forwardly u on pivots etween their lower ends and the tame bars '15.

This frame is raised from lowered position by a air of ropes 55, which are connected to tfie lower side portions thereof and extend upwardly over a pair of guide pulleys 56 at the upper side portions of the guideway, thence the ropes pass downwardlytb a'pair'of small winding cones 57. By this f means, the, upper extension for supporting the guiding ulleys can be raised to the op.-

erative position shown in Fig. 1- and thenv fixed inthisposition by securing the brace. ,13o

nds' of a pair 105 rods 53 to the bars or links 52. Whenthe upper extension is thus raised, the ropes 55 are removed from. the small winding cones -57. v v

.The loWer trough extension .is adapted to be raised from itsoperative position shown in Fig. 1 to its inoperative position shown .ih Fig. 8 by-a cable 58 fixed to a bracket59 on its lower face and extending upwardly therefrom over a guide pulley 60 (see Figs. 1 and-8) to a winding drum 61 (see Figs. 3 and 6). This drum is loosely mounted on a shaft 62, and is adapted to be connected theretobya slidingijaw clutch 63'. At one end, the drum 1s provided with a ratchet .wheel 64 which is arranged to be engaged by a spring-held pawl 65, so that the trough extension can be held in raised position .against the action of gravity when the clutch member 63' isin disengaged position. By shifting thepawl 65 against the tension of its spring 66 out of engagement with the ratchet 64, the trough extension can be read- I ily lowered to its operative position shown in Fig. 1.

The drag line 31 and Winding drum 42 serve to effect theforward movement of the excavating scoop 38 filled, the drag line alsodraws the scoop When the scoop is to the lower. end of and 'up the guide-way of the trough. When the scoop reaches the upper end of the guide-way, its forward edge will strike the hooks 54, and the continued forward pull of the drag line upon the scoop bail 39 will tilt the latter, as

- shown in dotted lines in Fig.1, and hence discharge the contents of the scoop.

To check this'tilting movement of the scoop, a 'U-shaped bail 67 is pivotallymounted upon the frame bars 48 and springs 68 extend between the arms of this bail and the lowerends of the frame bars 48. Stops'69 on the frame bars prevent the bail from swinging forwardly from the position shown in full lines in Fig. 1, but

,the bail can swing rearwardly againstthe tension of the spring 68 until arrested by a pair of stop bars 70 that project outwardly from the bars 48 (see Figs. 1 and 2). As the scoop is tilted, the: handle bars 38 thereon strike against .the upper horizontal portion of the bail and the further movement of the scoop is resisted by the spring 68, and the scoop is finally arrested in the dotted position shown in Fig. 1 when the bail67 strikes the stop bars 70.

If desired, thescoop can dump its load directly into'a cart placed beneath its dumping positiombut preferably the load is dumpedjnto a receptacle large enough to contain a wagon-load, and means are provided for dumping. the receptacle to quickly discharge. its contents into a cart, so that practically no time is lost in unloading thescoops and loading thecarts.

For this purpose, a receptacle 71 is mounted at the upper rear. portion 'of the machine immediately below the dumping position of the scoop. This receptacle comprises side walls and a flat bottom wall that is curved upwardly at its rear end. This receptacle is provided at the central portions of its bottom wall with trunnions 72 which i are journaled in brackets fixed to the rear frame bars 15. The rear edges of the side walls are concentric with the trunnions 72 and are provided with curved flanged bars 73." The receptacle is normally held in the 1 position shown in F ig; 1, with its bottom wall horizontal and with .its rear end adjacent a curved guide plate 74 fixed to the frame of the machine beneath the upper -end of the guide-.way. Side plates 75 at the upper side portions of the machine also overlap the rear end of the receptacle when it is in the normal position. The rear end of the receptacle is open, and to prevent the escape of material therefrom, when it is in normal'position (shown in full lines in Figs. 1 and 8), a U-shaped shield 76 projects rearwardly from the frame bars 15 and covers the open rear end of the receptacle. As.

stated, the receptacle is adapted to contain about a wagon-load of material and is held at such a height at the upper rear portion of the machine that the wagon can be readily placed behind the machine and beneath the receptacle and loaded by shifting the re-' ceptacle from normal position to its dumping position, .with is bottom wall downwardly and rearwardly inclined and its rear open end below-the shield 76, as shown in prises the shaft 62 (already referred. to) and shafts 7 9, 80 and 81 (see Figs l, 3 and 5), such shafts being iournaled in suitable bearin s mounted upon horizontal frame bars 1 Themain power shaft 79 is vprovided with two sprockets wheels 82 which are connected, by chains 82 to a pair of sprocket'wheels 83 and 83' on theflengine shaft 78. The sprocket wheels 82 are loose on the shaft 79 and adapted to be connected.

by a suitable clutch mechanism. 3 In the form, shown, this clutch mechanism comprises ahub portion 84 which is keyed to theshaft and which is provided with two sets of toggle arms 85 and friction shoes 85, the latter being arranged to cooperate with internal friction surfaces formed upon the sprocket wheels 82. --A. clutch shifter 86 is pivoted at 86' on a bracket 87, and is ary ranged to shift the clutch member to connect in accordance with the consistency of the material acted upon. In the central position of. the clutch member 84:, neither one of the sprocket wheels will be connected to the shaft 79 so that the mechanism is then I disconnected from the motor. The forward end of the clutch shifter 86 is provided with a rod.88 which extends outwardly through the side wall of the machine casing, so that fhe, cflutch shifter may be readily manipuate u The shaft 79 is provided at one end with a pinion 89, which meshes with the gear 90 on "the shaft .62, so that the latter is'continuously rotated when the machine isin operation. The drag line drums 42 are loosely mounted upon the outer projecting ends of this shaft and are adapted to be connected thereto by-a' pair of jaw clutches 91 which are feather-keyed to the shaft. Preferably, as shown, yokes 92 project outwardly from the bars 17 and are provided with bearings for sustaining :the outer ends of the'shaft 62. A pair of levers 93'for shifting the clutches 91 are 'pivotally mounted on the yokes 92-and these levers are connected by a transverse rod 94 which extends through the operating mechanism.

the machine casing and the parts are so connected that when one, clutch is engaged, the other must be dlsengaged, and when one of the winding drums is connected to the shaft 62 to wind up this drag line, the other drum, which is connected to the drag line of the second scoop, is necessarily disengaged from The return l1ne drums 47' can'be rotated ..faster than the drag line drums and are mounted directly upon the main power shaftv '7 9 and'are adapted to be connected thereto;

by 'a pair of friction clutches 95. Guard brackets 96 fixed to the frame bar 17 and i .to the yokes 92, surroundthe winding drums I '47 and levers 97, are pivotallyxmounted" thereon for shifting theclutches 95. These levers are connected b .a transverse rod 98 so that only one-of t a return line drums can be thrown intooperatlon at anyone time. the mechanism described, the two Y machine, the return line drum 47 of the scoops can be alternately operated When one" of the drag line drums 42 1s'1noperation to draw its scoop forwardly toward the other scoop is in operation to move it away from the machine.

The main power shaft is provided with a pinion 99 (see Figs. 5 and6) whlch meshes with a gear 100. that is. loosely mounted on the shaft 80. .This'shaft isprovided with a gear 101 which meshes with a gear 102 on the shaft 81. pair of crank arms 103 memes .(see Figs. 1 and 2) are fixed to the ends of the'shaft81 and are connected by links 104 to the forward end of the dumping receptacle.

An arm 105 (see Figs. 5 and 6) is keyed to the shaft 80 and is provided at its end i with pivoted holding and operating dogs 106 and 107. The holding dog 106 is pressed by a spring 108 and normally engages a fixed toothed plate 109, so that the shafts 80 and 81 and the parts connected thereto,

including the receptacle 71, are held stationary in normal position. I v

The toothed plate 109 is fixed to a dependinglug 110 on a bracket 111. This bracket is mounted on the shaft 81 between a pair of collars 112 thereon and the bracket is held against movement by a brace rod 113' extending between its upper end and atransverse frame bar 114, which, as shown in Fig. 1, is fixed to the frame bars 15. A

short rock shaft 115 journaledin the upper end of the bracket 111 is-provided with an integral depending crank arm'116 and with a depending supporting arm 117. Theflat. ter is provided with a socket for a'stop bolt 118. Aspring 119 within the sockettends to move the stop bolt downwardly, this downward movement being limited by nuts .120 threaded on the upper end of the stop bolt. The stop bolt cooperates with alug 121 which is formed on the clutch dog 107 A tail 122 on this dog is engaged by a spring 123; This spring holds the lug 5121 1 against the stop bolt 118, and, when the letter is shifted-out of engagement with the lug, the spring will move the clutch dog 107" into engagement with internal teeth 124:

formed upon the rim' of the gear 100.? I A spring 127 is interposed between the bracket 111 and holder 117, and this spring holds the stop bolt 118 in the normal position shown.

A shifter rod 125 is connected to'the' crank arm 116 so that the shaftcanbefrocked.

to shift the stop bolt'118' against the ten! i sion of the spring'127, out ofthe path of movement ofthe lug 121. -This shifter 1 rod is connected to a crank arm 126 on the inner end of a rock shaft 128. 'Shaft 128 fixed to one of the cross pieces .22. 128 projects outwardly through the side of isjournaled. upona bracket 129 thatis Shaft the machine and has a handle 130 on its.

outer-end by which it may be oscillated and shifted longitudinally. -B.y oscillating-the; Y

handle 130, the stop bolt 118 ,canbe disen gaged from the lug 1211 so that the clutch gear. 100. [ Shafts 80 and 81 will then be rotated to oscillate the receptacleand dump I its, load. The spring 127 returns the stop bolt to normal-position, as shown, so hat at the end of one revolution of the shaft 80,

lug 121 will-engage the stop bolt and the dog 107 will engage/the tooth 12 1 of the At the same time,

the stop dog 106 will engage the toothed member 109 and hold the shaft 80 and parts connected thereto stationary. In this'way,

a single revolution will be imparted to the shaft 80 and'the clutch dog will then be automatically disengaged. The gear 102 on the shaft 81 is twice-as large as its cooperating .gear 101 on the shaft 80,- so that a half-revolution is imparted to the shaft 81 Y and the receptacle will be arrested in the dumping position shown in dotted lines in Fig. 1. Byagain throwing this clutch mechanism into operation, another halfrevolution can be imparted to the shaft 81 to return the receptacle 71 to normal position.

In addition to the crank arm 126, the rock shaft 128 is provided with a shifter 131 for the clutch 63. This shifter is loosely mounted on the shaft so that it does not interfere with its oscillating movement, but is held against relative longitudinal movementby a collar 132 which is fixed to the shaft. By moving the shaft 128 longitudinally, the jaw clutch 63 can be thrown into and out of operation and thereby cooperate with the drum 61 to wind up the cable 58. Shaft. 128 is also provided with an arm 133 which is arranged to cooperate with a projecting lug 134 on the side of the pawl 65. The rod 125 is shifted to throw the receptacle dumping mechanism into operation by oscillating the rock shaft 128 in one direction. This rod has a lost motion connection with the crank arm 116, so that the shaft can be oscillated in the opposite direction and when so oscillated it disengages the pawl 65 from the ratchet 64 so that the rope 58 can be unwound and the lower trough extension lowdumped into wagons or carts, the receptacle dumping mechanism being controlled by the rock shaft 128. The drag and return lines of the scoops can extend laterally at an angle to the machine, so that a large area can be covered without moving the machine. The lower extension of the guide-way can be readily raised and the upper extension which carries the guide pulleys can be readily lowered for convenience in transportation.

It is obvious that numerous changes may be made in'the details set forth, without departure from the essentials of the invention.

I claim as my invention: 1. In an excavating machine, the combination with a scoop and drag line therefor, of a portable frame having an inclined troughshaped guide-way for said scoop, a guide pulleyland a winding drum for said drag line mounted on said frame, and a troughshaped extension at the lower end of said guideway adjustable to and from the ground, said extension having a foot outwardly curved in longitudinal direction and adapted to engage the ground, substantially. as described.

2. In an excavating machine, the combination with a scoop and a drag line therefor, of a portable frame having an inclined guide-way for said scoop, a guide pulley and wlnding drum for said drag line mounted on said frame, and anextension mounted upo'n the lower end of said guide-way and adjustable longitudinally thereof to and from the ground, substantially as described.

3. In anexcavating machine,the combination with a scoop and a drag line therefor, of a portable frame having an inclined troughshaped guide-way for the scoop, a guide pulley and a winding drum for said dragline mounted on said frame, a. trough-shaped extension at the lower end of said guide-way adjustable to and from the ground, said extension having a foot outwardly curved in longitudinal direction and provided with lateral extensions adapted to contact with the ground and upright guiding drums mounted upon the laterally projecting portions of said foot and forming the opposite side walls of a. flaring throat at the lower end of said extension, substantially as described.

4. In an excavating machine, the combination-with a scoop and drag line-therefor, of

a portable frame having an inclined guideway for said scoop, a guide pulley and a winding drum for said drag line mounted on said frame, an extension at the lower end of said guide-way adjustable to and from the ground, and guiding devices for the I scoop and drag line mounted on said exten sion, substantially as described. In an excavating and loading machine, the combination with a scoop and drag line therefor, of a portable frame having an inclined guide-way for the scoop, a winding drum for the drag line on saidframe, an adjustable extension frame at the upper end of said guideway, and guide pulleys for said drag line mounted on said extension, sub-- stantially as described.

6. In an excavating and loading machine, the combination with a scoop and drag line therefor, of a portable frame having an inclined guide-way for the scoop, a winding drum for the drag line on said frame, an ad justable extension frame at the upper end of i said guide-way, guide pulleys for said drag return lines therefor, ofa portable frame having an inclined guide-way forthe scoop, winding drums onsaid frame for said drag and return lines, an extension frame adjustably mounted at the upper end of said guideway and guide pulleys for said drag and return lines mounted on said extension frame, substantially as described.

8.. In an excavating and loading machine, the combination with a scoop, and drag and return lines therefor, of a portable frame havingan inclined guide-way for the scoop,

winding drums on said frame for said drag and return lines, an extension frame adjustably mounted at the upper end of said guide-way, guide pulleys for said drag and return lines mounted on said extension, a scoop-guiding extension at the lower end of said guide-way adjustable to and-from the ground, and means for raising and lowering said extensions, substantially as described.

9. In an excavating and loading machine, the combination with a scoop, and drag and return lines therefor, of a portable frame having an inclined guide-way for the scoop, winding drums on said frame for said drag and return lines, an extension frame adjustably mounted at the upper end of said guideway, guide pulleys for said drag and return lines mounted on said extension, a scoopguiding extension at the lower end of said guide-way adjustable to and from the ground, adjusting ropes for said extensions, winding drums for said ropes, a motor on said frame, and means actuated thereby for operating said several winding drums, substantially as described. 10. In an excavating machine, the combination of a frame having an inclined scoop guide-way thereon,-scoop dumping means at the upper end ofsaid guide-way, pairs of drag and returnline guide pulleys at the upper end of said guide-way, a pair of drag line drums, a pair of return line drums,

drivingmechanism for said drums, connectthe rear end of said frame and beneath the upper end of said guide-way, and a common motor on said frame for operating said winding drums and for tilting said receptacle to .dump the same,-su-bstantially as described. v

. 12. Inan excavating and loadingmachine, the combination of a frame having an inclined scoop guide-way thereon, scoop dumping means at the upper end of said guide-way, a tilting receptacle open at one' end mounted on said frame below the upper end of said guide-Way, a fixed shield normally closing the open end of said receptacle, and mechanism for tilting said receptacle, substantially as described.

13. In an excavating and loading machine, the combination of a frame having aninclined scoop guide-way thereon, a receptacle mounted on said frame below the ,upper end of said guide-way, mechanism for moving said receptacle between its normal and dumping positions and for holding the same in either of said positions, and an automati cally disengaged clutch for throwing said mechanism into operation, substantially as described. I

14:. In an excavating and loading machine, the combination of a frame having an inclined scoop guide-way thereon, a tilting receptacle mounted on said frame below the upper end of said guide-way, an operating shaft having crank arms thereon, links connecting said arms to said receptacle, and means for intermittently actuating said shaft, substantially as described.

EDWARD J. BIRKETT.

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