US104166A - Improvement in plows - Google Patents

Description

M LAFLIN & E. SLOSSON.

. PLOW.

No. 104,166 Patented June 14, 1870.

Wilma/5 66' MATTHEWLAFLIN AND ENOS SLOSSON, OF OHIOAGQILLINOIS, ASSIGNORS TO MATTHEW 'LAFLIN.

Letters Patent No. 104,166, dated- June 14, 1870.

' IMPROVEMENT, IN 'PLQWS.

The "Schedulereferfed to in these Letters Patent and-making part of the same.

To whom tt'may concern We, MATTHEW LAFL N and Enos SLo'ssoN, of the city of Ohicago, in the county of Cook, in the State of Illinois, have invented new and useful Improvements in Flows; and ivehereby declare that the following is a full and exact description thereof, ref-, erenee being bad to the accompanying drawings and to the letters of reference marked thereon.

The object of this invention is to construct the metal frame of a plow insuch manner as that a mold-board made of glass, steel, or' other metallic substance or compound, will have an even and solid bearing at all points of its support on the metal frame; and

It consists in the so forming the metal frame by casting or otherwise making a groove or hollow space or spaces therein, and fillingthe said hollow space-or spaces with any plastic substance, such as plaster of Paris, prepared India rubber, or any other suitable elastic or plastic material which will preserve a suitable bed or bearing for the glass mold-board to be bedded upon, and thus have an even hearing at all points of the mold-board; and

It consists, further, in the manner of holding or securing the mold-board in its place in the frame of the plow..

Glass mold-boards have been used in plows; but, as commonly secured in the frames, are liable to break, by reason of the want of a perfect hearing at all parts of the mold-hoard upon the frame, as in casting the frame it may not be perfectfih' itsshape, by reason of warping or springing, after'being cast, in the process of cooling, or the glass mold-board may not be perfect in shape to fit the frame, and have an even bearing; hence the want of a remedy for these heretofore defects, and save in use the glass mold-boards that, under the former method of bedding on the metal frame alone, would be liable to be broken. Figure 1 in the drawings represents the metal frame ofa plow, and v Figure 2. is an upright cross-section of the same. A represents the frame which supports the moldboard. v

A is the standard and landside of the frame.

The frame A is constructed, on the side to which the mold-board is applied, to have a bearing to receive said mold-board upon, and the middle or central part D is open, in order to give a better bed for the glass mold-board to rest upon near its extreme edges.

Such bearings in the frame are grooved or hollowed out, as seen in fig. 2, at B, which grooves, hollows, or spaces, are filled with any suitable plastic or elastic material, C, to give a firm and even bed to the glass mold-board B at the points 0 c c 0', so that the moldboard will have an even bed at all parts of its bearing up the frame A, andnot be liable to break when pressure comes upon itsoute'r or face side.

to the mold-board.

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The hollow or space 13' in frame A may be divided into smaller hollows or corrugations, which may go transversely across-the mold-board, or they may be constructed on radial of concentric lines, as the fancy of the maker may dictate, without departing from our invention, as the object is to give a sufficient space for the plastic or elastic material, and at the same time to hold it in its place, and give the necessary bed I) b are lugs cast on frame'A, at the upper andlower forward angles of said frame, and have dovetailed or uuderbeveled sides next the mold-board B, as seen in dotted'lines in fig. 1. p

The glass mold-board 15 is made in form to correspond with frame A, and has its forward end, upper and .lowerangles, made beveling, to fit in and be held in place by the beveled sides of lugs I) l) and'breast of the frame A, as seen in fig. l.

b is a metal clasp placed nearthe upper edge of the heel 'of the mold-board, its forward edge not proj ecting far enough to be even with the face of the-moldhoard, and is-bent at such an angle as to goto the inner side of the frame, and is held in its place by a screw-bolt.

Other means for holding this clamp may be used, but this weconsider the best.

VVhe'n the forward parts of the glass mold-board are shaped and beveled to fit the lugs 1) li and' the breast of the frame at a, and the hollow or space 2B filled with the plastic or elastic material 0, to fit the back of the glass mold-board at all parts equally alike, andthe mold-board'in its position, clamp J) is then put in its place, and tl1e screw-bolt(or other means of attaching the clamp to the frame) is screwed home, and the mold-board is securely fastened, and will not be easily displaced. This method of bedding and holding the mold-board in place is simple, easily applied, and as easy to take the. mold-board-away. whenever necessary, as but a single screw-bolt is to be turnedv out to release the mold-board or fasten it in its place whenever required.

The'usual lugs to a project from the lower/part of frame A below the bottom edge of the molddioard, and to which the share is bolted or secured.

Having thus described our invention,

What we claim, and desire to secure by Letters Pat- 1 The metal frame A, having the hollow or space 13' therein, for the purpose substantially as described. .2. The mode of bedding the mold-board B int-he metal frame A, as herein described and for the pur poses set forth. MATTHEW LAFLIN. 'Witnesses: ENDS SLOSSON.

LYCUBGUS LAFLIN, S. P. BOUNDS.

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