US75919A - Improved mode op casting plqughshaees - Google Patents

Description

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' J'oNA'ri-IAN HUN'roN, OE EAcKENsAeK, NEW JEEsEY,`Ass1eNoE-To EIM- SELF AND L. EREELAND, on SAME PLAGE.

Letters Patent No. 75,919, elated Jl/[arch 24, 1868.

IMPROVED MODE 0F CASTING PIJOiiJrElSBARES.l

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T() ALL lmVIlOM 1T MAY CONCERN1` p De it known that I, JONATHAN HUNTON, of Hackensack, in the county of Bergen, and State of New Jersey, have invented a new and useful Improvement in Casting Ploughshares, and that the following description, taken in connection with the accompany-ing drawings, hereinafter referred te, forms a full and exactI specification of the same, wherein I have set forth the nature and principles of my said improvement7 by which my invention may be distinguished from all others of a similar class, together with such parts as I claim and desire to have secured to moby Letters Patent. t

This invention is'desig'ned to admit of casting, with an iron mould, those ploughshares which are provided t with a lng or projection to fit into a staple or socket on the mould-board, and which are also provided with ai p 4pendent land-side projection, having an oblique position relatively with the upper surface of the share. Shares of this kind have hitherto been cast in sand-moulds, for the reason that they could not ,be drawn from cast-iron ones, and consequently the advantage of a chill has hitherto been lostl'in casting them.

My invention consists injproviding the cast-iron chill-plate with detachable lportions7 arranged -in such u manner that said portions, after the casting is made, may be removed, and the casting readily taken fromthe mould. In the accompanying sheet of drawings i Figure 1 is a. plan or top view of tho chill-plate of the mould. Figure 2, a section of the same, taken in the line a: x, tig. 1. Figure S, a section of thev same, taken in the line y y, g. 1. Figure 4, a section of the sam, taken in the vline z z, iig. 1. Similar letters of reference indicate like parts. i p :"3 A represents the east-iron chill-plate, which is et' the usual form, corresponding to the shape of the bottom er under surface of the share to bo cast, the top of the mould being'otl sand, as the chill is required for the under surface of` the share. The portion B of this 'chill-plate is made or cast separate from the other or main part, so 'that it may be removed when required, and this part B is atone side of the groove or depression inthe chill-plate, in which the pendent landsidc a of the share C is cast, as will be fully understood by referring to lig. 4. This pendent landside has an oblique position relatively with the top of the share, (see g. 4,) sulh- .ciently so to prevent the casting being drawn from a cast-iron mould if the latter were all in one piece, but by having the part B removable or detachable, and drawing it out backward from the chill-plate, the casting,` may be readily1 drawn from the former. The chill-plate A has an indent-ure or depression, b, in it, in which a cover, l p d, is fitted lhis cover-does vnot-fully` ll up the depression b. A space is allowed to receive the melted metal and'forrn a lug or projection, c, as shown clearly in tig. 2. This lug or projection lits into'a socket on the mould-board, and holds the outer end or part oi' the share in place. It answers in lieu oi' a bolt. Itwill be seen that this lug could not he cast with a chill-plate 'without the cover D, the removal ci' which admits of the \\ithdra\val of the casting. v f

Having thus described my invention, I claim as new, and desire to secure lJy"Lette1's Patent- V' lhe employment oryuse, with the chillplatc A, for casting plonghshares, of the removable or detachable parts ll D, either or both, varranged substantially as and for the purpose set forth.

` t JONATHAN nUNToN.

Witnesscs HENRY Baaren p NienoLAs C. DEMAREST.

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