US1169858A - Feed-cutting machine. - Google Patents

Description

A. MUNDT.

FEED CUTTING MACHINE.

APPLlCATlON FILED APR-20, 1915.

1,169,858. Patented Feb. 1, 1916.

3 SHEETS-SHEET I.

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A. MUNDT.

FEED CUIITING MACHINE.

APPLICATION FILED APR. 20, 1915.

1,169,858. Patented Feb. 1, 1916.

3 SHEETS-SHEET 2.

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A. MUNDT.

FEED CUTTING MACHINE.

APPLICATION FILED APR.20, 191's.

Patented Feb. 1, 1916.

3 SHEETSSHEET 3.

ALBERT-Murrow, on MANITOWOC, WISCONSIN.

FEED-CUTTING MACHINE.

Specification of'I-etters Patent.

Patented Feb. i, 1916.

Application filed April 20, 1915. Serial No. 22,682.

To all whom it may concern:

Be it known that I, ALBERT MUNDT, a citizen of the United States, residing at Manitowoc, in the county of Manitowoeand State of Wisconsin, have invented new and useful Improvements in Feed-Cutting 'Machines, of which the following is a specification.

This invention relates to feed cutting machines, and one of its objects is to provide novel and improved feeding mechanism for advancing the material .to the cutters, said mechanism including an endless slatted conveyer which, in addition to its conveying function, takes the place of the usual smooth roller, thereby allowing such roller to be dispensed with.

Another object of the invention is the provision of safety controlling mechanism whereby the working parts of the apparatus, with the exception of the driveshaft, may be instantly thrown out of action.

Another object of the invention is to provide a simple,.reliable and efficient type of cutting mechanism, including means forrelatively adjusting the parts thereof to compensate for wear, etc), and further to provide a cutting machine whereby different kinds of feed materials may be cut with equal efficiency. I

The invention'consistsof the features of construction, combination and arrangement of parts herein fully described and claimed, reference being had to the accompanying drawings in which Figure 1 is a side elevation of a feed cutting machine embodying my invention. Fig. 2 is an opposite. side elevation of the same. Fig. 3 is a sectional top plan view. Fig. 1 is a central vertical longitudinal section through the machine. Fig. 5 is a sectional plan view on line 5--5 of Fig. 1. Figs. 6 and 7 are vertical transverse sections on lines 6'-6 and 77 of Fig. 3. Fig. 8 is a detail view showing the stationary euttingknife'.

and its supporting and adjusting means.

In carrying my invention into practice, I rovide a suitable frame structure 1, preferably of oblong rectangular form and com-' prising corner posts 2, upper longitudinal side bars 3, lower longitudinal side bars 4,

'cross pieces 5 between the upper longitudinalbars 3 and cross braces 6 between the rear corner posts.- At the forward end'of the frame the bars 3 are extended, as shown at 7, and are reinforced by braces 8, and if desired the lower ends of the front and rear pairs of corner posts may be connected by cross'pieces 9 serving both as braces and as supporting feet. Uprights 10 are disposed adjacent to the front corner posts 4: and increase the strength of the forward portion of the frame to sustain the weight and strain of the working parts, and immediately above the said reinforced portion of the frame, is arranged a hopper or casing 11 which incloses some of. the working parts and into which the material is conducted and confined as it is being fed forward to the cutare arranged to cooperate with the cutter plate 14, which is vertically disposed and has an upper cutting edge 14. This cutter plate is arranged to bear against the vertical web of an angle bracket 15, the horizontal web ofwhic'h forms ledge or shelf covering the space between the feeding devices and the rotary cutter, and forming a combined bed for the material being cut and support for the stationary knife.

The stationaryknife or blade 14 is formed with vertical slots for the passage of bolts or other fastening members 15, whereby it is adjustably connected with the angle plate 15, and the lower edge of said knife or cutter plate is engaged by set screws 16 carried by a vertically disposed plate 17, whereby the cutter 14 may be vertically adjusted by means of the set screws and then fastened in adjusted position by means of the bolts or screws 15. Within the hopper, casing or housing 11 is arranged a lower front feed roll 18 and an upper rear feed roll 19, said rolls being carried by the transverse shafts 18' and19, the shaft 19 being journaled for rotation in stationary bearings, while the shaft 18 is journaled in bearing members 20 movable vertically in guide slots 20, allowing the roll 18 to adjust itself to compensate for variations in the amount or thickness of the materlal feeding beneath the same to the cutting mechanism. The

rolls 18 and 19 are preferably of the "fluted type so as to engage and feed thematerial forward with a positive feed motion.

20 are controlling devices in the form of rods 21 having heads or abutments 21', together with coiled springs 21 surrounding said rods between the abutments and fixed portions of the frame or casing, whereby the roll 18 is yieldingly held down to its work and is permitted to have a linked upward motion for a purpose hereinafter set forth.

The material is supplied to the hopper or casing 11 by means of an endlessfeed belt 22 preferably composed of two chain sec-' tions 22 and transverse slats 22 which chain sections pass at the rear of the frame over guide sprocket wheels 23 carried by a transverse shaft 24, and at their forward ends pass around sprocket wheels 25 on a driven transverse shaft 26. This shaft 26 carries at one end a double spur gear consisting of gear members 27 and 27 (or a single gear member of equivalent width), and carries at its opposite end a gear 28. The gear 28 meshes with a gear 29 on a stub shaft 30, on which is a sprcket wheel,

not shown, connected by a chain 31 with a sprocket wheel 32 on the shaft 19, whereby said shaft 19 and the roll 19 are driven. The shaft 19' also carries a sprocket wheel 33 connected by a chain 34 with a sprocket wheel 35 on a stub shaft 36 which sprocket wheel 35 is connected by a chain 37 with a sprocket wheel 38 on the shaft 18, whereby said shaft 18 and the feed roller 18 are driven. 7

Fixed to the drive shaft 12 is a gear pinion 37 which meshes with the intermediate gear 38 of a driving and reversing tram, which gear 38 is mounted on a shaft 39 carrying also a pinion 40 meshing with a secondary drive gear 41, on a shaft the gears 38 and 41 being disposed in different a vertical and horizontal planes for cooperation with the gears 27 and 27, respectively. The shaft 39, together with the gear 38 and pinion 40, are pivotally mounted upon and supported from theshaft 12 by means of a swinging bracket or hanger'formedof ,suspending links 43, and the gear 41 1s similarly suspended from the shaft 39 by a bracket or hanger formed by suspending the links 44. The gear 41 is normally disposed below and in advance of the gear 27 and is 7 adapted to be drawn upwardly and rearwardly into meshing engagement therewith,

in which operation it decreases the distance between the shafts 12 and 42 and shifts the relatively inner ends of the links and the shaft 39 forwardly whereby the gear 41 may be'disposed in working mesh with the gear 27, while the gear 38 is out of mesh with the gear 37. By however releasing the gear 41 and permitting it to move by gravity to a position in-which the suspending links are in alinement and perpendicular, Connected with the axle 18 or bearings both- gears 38 and 41 will be out of mesh with the gears 27 and 27', so that the entire feed mechanism of the machine will be stopped or thrown out of action, leaving only the drive shaft and rotary cutter'in motion. The links 43 adapt the gear 38 to be drawn into meshing engagement with the gear 27, while the weight of the gear 41 holds it out of engagement with the gear 27. The gears 41 and 27 are adapted for meshing engagement for a normal working action of the feed mechanism, whereby the material is fed forward to the cutters, while the gears 38 and 27 are adapted for reversing the operation of the feed mechanism, so that the parts may be freed if choked with material, without stopping or reversing the motion of the'shjaft 12 and the rotary cutter.

Coupled by a connecting rod 45 to'the swinging bracket 44 is a shifting lever 46, and coupled to the bracket 43 by a connecting rod 47 is a reversing lever 48. These levers are pivotally mounted at their lower ends to swing in a direction longitudinally of the frame, and by means of the lever 46 the gear 41 may be thrown into and out of action, while by means of the lever 48 the gear 38 may be thrown intoand outof ac-' tion, it being understood that when one moved forwardly. to a retracted position,

while the lever 48 is moved rearwardly to draw the gear 38 into engagement wi'th'the' gear 27, as will be readily understood. 7

.Each lever is provided with a locking dog or pawl 49 in the nature of a rod having its upper end formed to provide a tooth to engage a rack 50, the dog being normally held in rack engaging position by a spring 51, against the resistance of which it is adapted lever 52. 1

A' treadle or foot lever53 is .pivotally mounted on the frame :and is pivotally 'or otherwise loosely connected with the lower end of the rods 49, so as to permit the levers and rods to have free movements while .to be manually retracted means of a hand at the same time adapting the rods to be re.

tracted by downward pressure of the foot 7 upon thelever 53. It will thus be understood that whenever it is desired to throw the feed mechanism quickly out of action,

without the necessity of manually unlocking and then manually swinging the acting lever, this object may be accomplished by simply depressing the lever 53, which will unlock the acting lever, the weight of the gears shifting said lever to projected position and disconnecting the train from the feed mechanism, whereby the operation of the feed mechanism will be practically instantaneously stopped. It is desirable also to provide means for automatically stopping the machine when the feed mechanism is working on too great a volume of material. This is accomplished by providing a lever 54 pivotally mounted at 55 on the frame and having arms 56 connected with the lower ends of the rods 21, and an arm 57 connected with or arranged to bear upon the treadle 53, so that when the roller 18 is raised to a predetermined extent the lever 53 will be depressed and will release the acting controlling lever 46 or 48, by which the drive gearing will be thrown out of action and the feed mechanism stopped, as will be readily understood.

An important advantage of my invention, aside from those previously stated, is that by the construction of cutting mechanism set forth a type of machine is provided which will cut all kinds of feed stuff in a rapid and efficient manner.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 7

I claim 2 1. In a feed cutter, the combination of a frame, a feed-mechanism including feed devices, one adjustable automatically with relation to the other, and gearing for operating said feed devices, manually operable means for throwing said gearing into and out of action, and automatically operable means controlled by the adjustable feed device for governing the said manually 0perable means.

2. In a feed cutting machine, feeding and cutting mechanism including a driven shaft and a drive shaft, the said feeding mechanism also including an adjustable feed eleoment, driving and reverse gears, adjusting devices for throwing said gears into and out of driving engagement with the feed mechanism, fastening means for locking said adjusting devices in acting position, a foot lever for retracting said locking devices to permit retraction of the adjusting device and the gear controlled thereby, and automatic means controlled by said adjustable feed element for actuating said foot lever.

In testimony whereof I afiix my signature in presence of two witnesses.

ALBERT MUNDT. Witnesses:

AUGUST NUSANG.

Washington, D. G.

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