USRE3898E - Improvement in straw-cutters - Google Patents

Description

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JAMEs lmLMnR, or BROOKLYN, NEW YORK, AssieNEn, BY .Mnsun As- SIGNMENTS, orY no. rownns. j

,Letters Patent No. 27,154, dated February 14, 1860; #reissue No. `3,898, lated March 29, 1870.

IMPROVEMENT IN' STRAW-CUTTERS.

The Schedule referred to in these Letter. Patent and making part of-the same Be it known that DAVID J. Iownns, of Madison, in the county of Dane and State of Wisconsin, did invent certain Improvements in Straw and Hay-Cutting Machines, of which the following is a specification,

The nature of the in ventiolr herein claimed relates to the combinations and arrangements of the operating parts of a machine for cutting fodder, such as hay,

, gearing, having two sets of c'ogs, (which is shown in a separate igure,) whereby the fodder may be out of different lengths, as will be hereinafter specified, and, with the other parts ofthe machine, will be fully described.

In the accompanying drawings- Figure 1 is a vertical side view of the machine;

Figure 2, a vertical longitudinal section;

Figure 3, a side view of the side opposite lig. ll;

Figure 4, a plan or top view;

Figure 5, a horizontal sectional view o' the handwleel and feeding-gear.; and v Figure 6, a similar view of the hand-wheel and slipping-gearing, which may be used in place of the gearing, tig. 5, for the purpose of altering the length of the out fodder.

Like letters in the dilfercnt iiiguresfindicate like parts.

A represents the box,v and A the frame of the machine. o l

B is the driving-wheel upon the shaft (l. Upon this shaft are placed two circular metallic plates, 1), securely fastened, so as not to turn except with the shaft. One of these plates is movable laterally upon the shaft C.

Uponthe inside of cach of these platos, near the circumference, are four' mortises, 14, for the purpose of holding the cuttingkuivcs.` s

G Gare the cutting-knives, the ends of which are placed in the mortises l", and then, by means of a nut and screw, Hfupon the shaft C, the circular plates l) are pressed against the end of the knives, which are thnsheld firmly in their place. These knives are placed on a .line parallel to each other, but obliquely to the line of the shaft.

I is an adjustable ledger-blade set upon the line ot the shaft O, sothat the action of the knives in concert with the ledger-blade is similar to the action of a .pair of shears.

J is a screw by which the ledger-blade is .held in place and adjusted.

K K K are pinions of different diameters, and so arranged vupon the shaft C as to be run independent of each other.

L is a compound spur-wheel upon the shaft of .one of the teedilig-rollers, the cogs of which mesh into the pinion-wheels K K K.

M M are metallic uted feeding-rollers. l

Nis a'sliding bolt working in a hollow in the shaft C. This shaft, .upon the part covered by the pinions K, has a slot cnt through to theend, in which the bolt N slides. l

From near the inner end of this bolt is a pin or spur, O, projecting through the slot in the shaft, into a groove ent in each of the pinions.

It' a slow feed is desired, draw ont the bolt N till the spur O is in the groove of the smallest pinion K,

which is thus made fast to the shaft C, and is the only one communicating power to the spur-wheel, and meshes into that part having the largest diameter, and consequently gives the slowest motion.

Should a faster mot-ion be desired, push the bolt'in till thespur is` in the groove of the middle pinion,

-which meshes into the secondjset of cogs in the spurwheel, whose diameter is less than the tirst, and the speed consequently increased.

kShould a still greater speed be desired, push the bolt in till the spur is in the largest'pinion, which will then communicate the power to that part of the wheel having the smallest diameter, and consequently the speed of the feeding-rollers will be the greatest.

When the spur O is in one pinion, thev other two turn loosely upon the shaft. v A.

Motion is communicated tothe lower 'feeding-roller` by means ot' four pinions, Q* Q2 Q Q, of which the pinions Q and Qare fast upon the shafts of the feetL ing-rollers, and the pinions Q2 and Q3 work loosely upon fixed studs. The power is communicated from Q1, upon the upper feeding-roller, through Q2` and Q, to Q4, on the lower feeding-roller.

VThe journals upon which the lower feeding-roller runs are placed in arciroular slot, lt, the center ofthe circle being the same as the center of pinion Q, and they radins just double that; consequently, as the roller is pressed apart from the opposite roller by a4 large amount of fodder passing between them, the same relative distance between pimons Q3 and Q4 is maintained, and the` possibility avoided ot' their being thrown out ot' gear.

The journals It are'licpt pressed up in their proper place by the lever S, acted4 upon by the movable weight T, whereby a press'tire is kept upon the movable leerling-roller.

an iron hook fastened at the topto the frame A, thev hook at its lower end being the fnlcrum of the lever S..

V are uprights, upon which rest the journals R. W isa frame-work attached to the ii'ame A on each side, which supports the cutting and feeding apparatus. X is a handle for operating the machine hy hand. 'Y is a cover to the cutting-knives. Instead of the separate independently# operating pinionsK., on the driving-shaft C, with a sliding or shifting locking-bolt N, to lock the pinion required to he used, a sliding double pinion may be used in place thereof, especially where `a limited amount of changes oi feed is required, which is shown in fig; 6, in. which C is the driving-shaft; I a sliding double pin ion,l1ar ing two sets of cogs, a a', which are of different diam eters, and which correspond with the two sets of cogs on the spur-wheel L, whichare also of different diameters. v

c is a rib on the shaft C, which causes the pinions P to turn with the shaft.

The pinions P may belocked in the position rcquired by passing a pin into suitable holes in the shaft, but other means may be used for holding the pinions in the required position on the shaft. Then the pinions Y are used, and it is required to ent the foddershoit, the coge a of pinion P should gear with the cogs b on wheels kL, which will turn the shafts of the feeding-rollers at a slow speed, when 'the fodder will be icut short; but when it is desired to cut the fodder longer, the double pinion I should be moved outward upon the shaft, so as to bring the cogs a into gear with the coge b', when the feeding-rollers' wilihe turned with increased Velocity relatively to the cutting-knives, which will increase the length of the ent fodder.

It is obvious that the arrangement of some ofthe parts of this machine may be changed and modified without altering the principle of' some of the other parts thereof. For instance, the upper feeding-roller may be made the movable one, and the knives made vto cut downward, as isy the usual manner of fodder'- cutting machines, which change would not necessitate a change of the combination of the pinions Q Qi QR Q for operating the feeding-rollc1'"s, the change of the machine is to be used where only a limited amountl of changes of feed is required, the sliding gearl would bc preferal'ile to the separate pinionsK, as being more simple and durable for that purpose.

Having thus described the invention of DAVID J. Pownns,

WVhat is claimed as his invention in theconstruction of fodder-cutting machinesis- 1. The intermediate pinions Q and Q3, placed on fixed studs vor axes, in combination with the pinions Q1 and Q on the feed-roller shafts, arranged substantially as and for the purpose speciiied.

2. The combination of the independcantly-operating pinions K K K with the driving or crank-shaft, where' by the speed of the feeding mechanism may be changed, substantially' as described. v

3. The combination of a double-cog sliding orshift ing-gearing with the driving' or crank-shaft, whereby the speed of the feeding-mechanism may he changed,

substantially as described'.

4.. The combination of theshiiting operating gears K K K or I with the spur-gearL, pinions Q* Q Q Q, and feeding-rollers M M, all to operate so as to vary the speed of the feeding-rollers according to the length of ent required, substantially as shown and described.

' J AMES PALMER. Witnesses l Gao. T. PALMER, GHAs. E. FROST.

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