US90090A - Warren gale - Google Patents

Description

WARREN, GALEQOE PEE KsKi i.LA NEW YonK.

geen Pittem No. V90,090, dated May 1s, 1869.

"mPovEME-'TIN s'rRAw-CUTTEB.

The Schedule referred` to in these` Letters Patent and makingjpaxt of theiame.

:To all whom 'it mag/ concrr i 1 i y Be it` known that` I, WARRENQGALE, of Peekskill,

"' in the county of Westchester, and inthe State of New York, 'have iuventedcertain `new and useful Improvements in Machinesfor OuttingHay, Straw, Rags, and

`other substances;` and`I do hereby declare thatV the following isfull, clear, and eiiact description thereof,l reference being-had to the accompanying drawings,

. forming a part of this specification.

` y f Figure l is a perspective view.r

Figure 2 is a vertiral section. l u Figures 3 and 4 are details,showing the metal strip. i Figure 5 represents the holes inthe knife, with the screwz in thehole, and the upper side ofthe knife,` Aiivliere the holev is, resting on the-screw. i

u Figure 6 is a perspective view of the gearing attached to the shaft, and keyed toprevent its turning.

l and 2 are slots let inthe face of the gearing, to receive projections on theface of the crank, on each sideof the hole, to receivethe screw which fastens it totheshaft. y

Figure `7. 3 aiid4 are the lugs which enter the slots in the gear-wheel, shown fin fig. 6. The crank is fastcned to the shaft by inserting, the lugs 3 and 4 into the slots laud 2, and the screw passing through the shaft is screwed into thel end of the shaft, thus fastening the saine securely together. y i

Irinay find it convenient to vary the form of the screw, by having the end of the Vshaft passthi'ough t'hecrank, with afscrew. cutn the end of the saine, and using a tap, screwed on, to holdthem firmly togethen i" When the crank is fastened `in the usual way to the shaft, each'crank must be different, and fitted to each y individual shaft by a key; but, by my invention, all the cranks of all like-sized machines will t eachmachine, which isa great advantage inputting up the same, or when a crank is broken.

L `The nature ,of "my invention consistsin `certain improvements in feed or other cutters, and the combination of `certain devices, making a` more valuable machine than when. used separately. u "Most of these improvements are especially applicab le to the feed-cutting machines patented by ine, September 12,1854, and January 29, 1867.

My first improvement relates to making and applying the metalstrip, or facing used for the knife to cnt "against, making the strip `more perfect, and more easily -applied and fastened, reversed, adjusted, and interchanged. y i y I make this strip 'of any suit-able metal to cut `against. A strip iliade of copper, or of soine alloy of copper, I prefer for this purpose; or, the best way to make it,

is to cast it as nearto the desired form as ispracticable.`

Iii-.the drawingsy, 'j f `A` represents" the ordinary frame-work and box of a straw, for feed-cutter.` i Y Y .v

` B, the pressure-cylinder, to which the 'metal strip is to be applied.'- I iisnally cast this cylinder in one piece,-

of cast or malleable iron. One, two, three, or more `flanges of this cylinder have their faces turned true' in a lathe, or otherwise made true, so that their faces may all heequidistantfrom` the centre of the cylinder, and sufficiently uniform, so that a strip which is fitted samemachine, or of any other machine of the same size and pattern.

tra fitting or adjusting. f v

Urepresents the metal strip. I make its side, next to the flange, concave, in order to fit closely to the-face of the flange, which is necessarily convex, from'having been `inade true in a lathe. This strip is made of' as near uniform thickness as possible, with its outer face convex. J

Strip C is fastened t0 the flange by a countersunk screw,a, at each end,ibeyond the cut'of` the knife,

or knives. This is a good way for fastening the strips, but other modes may be used. Fer instance, `lugs, or ears may be cast, or formed on the strips, so Vas to `embrace the sides of the flanges, and be securedby rivets, or screws through these-,lugs into the sides of the flanges.

In, or near the centre of the concave side of strip O,- I cast, oi" form a stud, or-pivot, c, that fits into a corresponding recess in the convex face of the flange.

Thishjelps to hold and steady the strip in place on the y flange, and leaves the convex face of the strip smooth at that point against which the knife cuts most. Where `the strip is long, and needs support, one or more additional `studs may be used'. u

The knife-cylinder D is usually geared to the pressure-cylinder B, so as to bring the knife iu contact with the'strip, in a line a little at one side of its centre, so that, when Athe strip has a slit cut in itl too. deep to work well, the strip canbe reversed, presenting a line (on the other side of the vcentre) for the 'knife to cut against, making a new slit, and working as well as a new strip. r i

This mode of attaching and using the metal strip is more effective and desirable thaniany of the ,previous j modes.

My patent of September 12, 1854, shows a hidev strip. Itis not made convexo-concave,noris theange made convex, noris the mode of v fastening like that now described.v

Y My present invention, so far as the strip is concerned,'may he `considered as an improvement upon my patent of January 29, 1867. In that-patent, the copper strip rested in a rebate on the flange, and was,

held in itsplace bya movable jaw.

A oylinder,`or shaft so cast, cannot very well be made true on the bottom of the rebate, it being diiicult, if not impossible, to centre and -turn the shaft with sufficient prcision to bring Athe bottom of each rebate, upon which the strips rest, equidistant from to one flange-face `will fit the other Harige-faces of the This construction renders the strips n v and iauges interchangeable, oi reversible, without exthe centre of the shaft; so that, when I make my cutting-machines according to the 1857 patent, the strips are first secured to the cylinder, and then turned smooth in a lathe. Thus, it will necessarily happen that the strip'will be thicker in some places than in others, to compensate for the unequal casting or centring of the cylinder. The strips, for this reason, would also not be interchangeable.

Another feature of vmy invention consists in the construction of the knife-shaft D, and the method of applying the knife, or knives.

This knifeshaft D, I also cast in one piece, of castiron, or of malleable iron, when great strength is required.

I make the ange between the shoulders x, to which the knives are fastened, shorter than the knives, so that each end of the knives will rest upon the shoulders that are a part of the shaft. These shoulders being turned true, and that part of the knife resting on it being of equal width with all other knives, it follows that the knives also are interchangeable, and, if broken, or worn out, can be readily duplicated.

It is very desirable, in making this class of machines, to have the knivesas light as is consistent with the requisite strength. In order to cut well and easily, the edges of these knives must be thin,no matter how thick the main knife is, and the edge of a thick knife is just as liable to damage, or injury as the edge of a thin one; and, as the knife, inl this class of machines, cannot be much ground off at the edge, and be set up again, it becomes desirable to use a cheap knife, which, when damaged, can be easily removed, and replaced by another. 4

The flange y, to which the knife is fastened, gives it great strength. It is not found, however, to prevent the knife from yielding, or springing at the centre. It is, therefore, necessary that the middle screw or rivet z should fill the hole in the knife, or the upper part bf the hole should rest `upon the upper part of the screw or rivet. This prevents theknife from yielding at the centre, and enables me to use a very light knife. The knife-shaft and knives, so constructed and arranged, constitute this part of my invention.

Knife-shafts .have been heretofore made, having all the features of mine, except having the knife at the upper. part of its hole to rest upon the upper part of -the screw or rivet. The device heretofore used for this purpose, has been to let the lower edge of the knife rest upon the heads or toes of set-screws in the shaft itself.

Another feature of my invention consists in a new method of working the automatic throat, or mouth used in my patent, of September 12, 1854.

My present method of using a steel, or other suitable spring, E, fastened to the under side of the hinged bottom G, near its rear end, allowing the front end of the spring to rest on the cross-bar I, is preferable.

It is sometimes desirable, in this class of machines, to dispense with the automatic throat. By simply turning the spring E on its pivot, so that its frontend escapes from the cross-piece I, the bottom G will fall down and rest on the cross-piece, and' the cutter be then used without the action of the automatic throat.

Having fully described my invention,

What I claim as new, and desire to secure by Letters Patent, is-

1. The pressure-cylinder B, having its flanges pro, vided with convex faces, when used in combination with the concavo-convex strip G, (with or without stud 0,) constructed and operating substantially as and for the purposes set forth.

2. The concave-convex strip C, provided with one or more studs c, and constructed and operating substantially as and for the purposes set forth.

3. The flanged knife-shaft D, made with a shoulder, x. at each end, for the knife to rest on, when used in combination with a knife, or knives, secured by screws, or rivets, so that the knife, at the upper part of its hole, shall rest upon the upper part of its screw, the whole being geared to an'd used in combination with a pressure-shaft provided with metal-faced anges, substantially as and for the purposes set forth.

4. The hinged bottom G, of the automatic mouth, in combination with spring E, constructed and operating substantially as and for the purposes set forth, when used in combination with the subject-matter of the first claim, as above set forth.

5. The combination, with the knife-shaft D, of the crank-arm x, when said arm is secured to the gearwheel, on the end ofthe shaft, by means of the projectionls 3 and 4 and recesses 1- and 2, substantially as set orti.

In testimony that I claim the above-described invention, I* have hereunto signed my name, this 17th day of April, 1868.

WARREN GALE. Witnesses: Y

MITCHELL LAINE, HERBERT VAN Wrox.

Images