US74880A - Improved apparatus foe bending metallic plates - Google Patents
Improved apparatus foe bending metallic plates Download PDFInfo
- Publication number
- US74880A US74880A US74880DA US74880A US 74880 A US74880 A US 74880A US 74880D A US74880D A US 74880DA US 74880 A US74880 A US 74880A
- Authority
- US
- United States
- Prior art keywords
- plates
- improved apparatus
- metallic plates
- bending
- bending metallic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005452 bending Methods 0.000 title description 16
- 210000000614 Ribs Anatomy 0.000 description 6
- 240000002951 Psophocarpus tetragonolobus Species 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 241000282376 Panthera tigris Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 229950008597 drug INN Drugs 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0025—Supports; Baskets; Containers; Covers
Definitions
- Myinvention consists in an improvement in the construction of plates for bending and holding ploughplates While being tempered, and an arrangement of levers and devices for operating the same to bend the plates, as hereinafter described.
- I Figure 1 is a perspective view, and
- Figure 2 a transverse vertical lsection of the improved device used in my process.
- I make a clamp consisting ot' two plates, A and E, corresponding in form to the shape ofthe article when finished, which in this case is supposed to be a mould-board for a plough.
- These plates may be hinged together on their rear edge, as shown at f, and provided with handles C B, as represented.
- On their inner surfaces these plates are provided with a series of ribs or projections, e, as shown, with'spaces between them.
- the plate after being heated, is placed' between the plates A E, whichare then shut together, .as shown in tig. 2, and thereby of course bending the plate c, which lies between them, to the Vrequired form.
- I mount the clamp on a low table, I, having a block, D, for it to rest on, and hook the rear side fast by means of a rod, o, while the upper plate may be drawn down by a lever, II, and rod l, as shown in tig. 2.
- the devices may be varied to suit the circumstances of the case, and according to the article to be made.
- the improved ⁇ apparatus for bending and tempering plough and similar plates when constructedI and arranged in its several parts substantially as described.
Description
@nitrttatra gallant @frn roHN WQBuAfN, orL-iENnY, ILLrNoIs.
l Letters Patent No. 74,880, dated February 25, 1868.
turnover-APPARATUS ron BENDING METALLIC PLATES.
' @its tijatle maar tu it tigers tintin gnant inn mittag ptit nf its sans,
To ALL WHOM IT MAY ooNcEnN:
Be it known that I, JOHN W. BEAN, of Henry, in the county of Marshall, and State of Illinois, have r invented certain new and useful Improvements in the Bending and Hardening of Metal Plates; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings making part of this specification, and to the letters of reference marked thereon, like letters indicating like parts wherever they occur. 1
To enable others skilled in the art to construct and-use my invention, I will proceed to describe it. Myinvention consists in an improvement in the construction of plates for bending and holding ploughplates While being tempered, and an arrangement of levers and devices for operating the same to bend the plates, as hereinafter described. I Figure 1 is a perspective view, and
Figure 2 a transverse vertical lsection of the improved device used in my process. i
It is customary, in making the mould-boards for steel ploughs and cultivators, to first cut the plates of the required form, then press or bend them into the required form, after which they are hardened by the usual process. It is necessary that these plates shall be precisely alike in form, in order to tit the frames or standards to which they are bolted, and wl1ic h,iin the case ofploughs, are usually made of cast iron, and being rigid will not yield. It is found in practice that when thelihot plates are immersed in water or other liquid, for the purpose of hardening them, they are apt to spring more or less, and thus get out of shape; and as it is desirable to make them very hard, in order to wear well, any subsequent attempt to change their form by springing or bending them is very apt to crack or break them. To remedy these didiculties, -and insure the bending of the plates to the exact form required, and keep them so while being hardened, is the object of my invention. i
To accomplish this, I make a clamp, consisting ot' two plates, A and E, corresponding in form to the shape ofthe article when finished, which in this case is supposed to be a mould-board for a plough. These plates may be hinged together on their rear edge, as shown at f, and provided with handles C B, as represented. On their inner surfaces these plates are provided with a series of ribs or projections, e, as shown, with'spaces between them. The plate, after being heated, is placed' between the plates A E, whichare then shut together, .as shown in tig. 2, and thereby of course bending the plate c, which lies between them, to the Vrequired form. The plate thus bent orformed is thenl taken out and heated to the proper degree, when it is again placed in the mould or clamps, and the wholeitogether is then plunged into the cooling-liquid. rJ'rhe plate e, resting on the ribs e, is held firmly in place, while the liquid ows readily and freely between the ribs, thus coming at once in contact with the surfaces of the plate, and thereby cooling and hardening lthe same, without springing or warping it in the least. In this manner I am enabled to produce any number of plates of perfect uniformity.
In making mouldboards and cultivator-teeth or shovels, I mount the clamp on a low table, I, having a block, D, for it to rest on, and hook the rear side fast by means of a rod, o, while the upper plate may be drawn down by a lever, II, and rod l, as shown in tig. 2. i
It is obvious, however, that the devices may be varied to suit the circumstances of the case, and according to the article to be made. In bonding and hardening large plates for other purposes, it may be necessary to have the dies o r clamps secured inland operated by a power-press, and to have it so arranged that the whole may he lon'ercdinto a suitable tank, by means of pulleys, and swung around by 'a crank; but these are details not necessary to bc herein described, as the person using my invention will of course arrange them as he `may Ldeem best.
I aman'nrc that fra-mes consisting of independent bars, united at their ends like a grifliron, have hereto` fore been used for holding plateswhilo 'beinginscrted in a tempering-bath, and such I do not claim; but having thus described my invention,
.what I claim, is-.- u
The improved `apparatus for bending and tempering plough and similar plates, when constructedI and arranged in its several parts substantially as described.
lJOHN w. BEAN.
Witnesses :I
W. GALLAHER, L R. BAGULEY.
Publications (1)
Publication Number | Publication Date |
---|---|
US74880A true US74880A (en) | 1868-02-25 |
Family
ID=2144387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US74880D Expired - Lifetime US74880A (en) | Improved apparatus foe bending metallic plates |
Country Status (1)
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US (1) | US74880A (en) |
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- US US74880D patent/US74880A/en not_active Expired - Lifetime
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