US752104A - Means for forming plow-irons - Google Patents

Description

NO. 752,104. PATENTED FEB. 16, 1904. M. M. RENN.

MEANS FOR FORMING PLOW IRONS. APPLICATION FILED HA3. 9. 1903.

N0 MODEL.

fIEn-l TEE-i TIE-.5 T1222.

1 UNITED STATES- Patented February 16, 1904,

PATENT FFICEY.

. MEANS FOR FORMING PLOW-IRONS.

SPECIFICATION forming part of Letters Patent N 0. 752,104, dated February 16, 1904:.

Application filed March 9, 1903.

('0 all whom it may concern;

Be it known that I, MATTHEW M. RENN, a :itizen of the United States, residing at Louis- 'ille, in the county of Jefferson and State of Kentucky, have invented certain new and use- 111 Improvements in Means for Forming Plow- Irons; and I do declare the following to be a "ull, clear, and exact description of the invenion, such as will enable others skilled in the brt to which it appertains to make and use theame.

My invention relates to improvements in neans for shaping plow-irons, such as plow- )oints, moldboards, or other parts of plows in vhich said parts are provided with lateralffs et portions, such as landsides, when the :aid parts are plow-points; and it consists in ,he peculiar construction and combination of levices hereinafter described and claimed.

The object of my invention is to provide iovel and improved appliances by means of vhich a plow-iron having a lateral offset may )e formed and the ofiset also formed at a :ingle operation Without the necessity of first Forming the plow-iron and subsequently formng the offset portion and welding the same illGISlSO.

In the accompanying drawings, Figure 1 is partly an elevation and partly a section of lies, a die-block, and a hammer-die constitutng improved means for making plow-irons in Lccordance with my invention, the hammerlie being shown in an elevated position and he blank from which the plow-iron is forged )r shaped being shown as in its original conlition prior to the action of the hammer-die hereon. iammer-die in the act of delivering its blow )11 the upper side of the blank to shape the atter in the mold-cavity of the dies and to also simultaneously form the offset of the glow-iron. Fig. 3 is a detail perspective view )f the blank prior to the placing thereof in ;he dies. Fig. 4 is a similar view of a plowpoint having a laterahofliset constituting a .andside, the plow-point having been formed trom such blank, as is shown in Fig. 3.

In the embodiment of my invention here ahown the block 1 is provided in its upper Fig. 2 is a similar view showing the Serial No. 146,986- (No model.)

side with an angular recess 2, adapted for the reception of the dies 3 t, in the opposing sides of which is formed the mold-cavity 5, corresponding'to the required shape of the body or major portion of the plow-point or other plowiron at to be formed therein. The die 3 is here shown as provided with a shoulder 6, which is disposed laterally with reference to the moldcavity, and the dies 3 4: are shown as respectively provided with vertical extensions 7 8, which project above the said shoulder 6 and are adapted to guide and form a seat for the lower portion 9 of the hammer-die 10, which hammer-die, as will be understood, is adapted to coact with the dies 3 4 in the making of the plow-iron. Any suitable means may, within the scope of my invention, be employed to secure the dies 3 4E in the seat of the die-block 1, and any suitable means may be employed for raising and lowering the dies, for placing the blanks between the dies, and removing the plow-points therefrom when finished. The

hammer-die may be operated by any suitable mechanism, such as steam-hammer mechanism or bulldozer.

It will be observed by reference to Figs. 1, 2 of the drawings that the mold-cavity formed in the opposing sides of the dies 3 4c is disposed obliquely with reference to the plane of movement of the hammer-die, this disposition of the mold-cavity facilitating the action of the hammer-die in driving the heated ductile stock of that portion of the blank which is to constitute the body of the iron into the moldcavity, so as to forge and shape the same therein.

In the manufacture of a plow-iron or similar article by my improved appliance ablank Z2 is first provided, which approximates the shape of the finished article and exceeds the same in one of its dimensions, so that when the blank is placed in the mold-cavity between the blocks 3 4, as shown in Fig. 1, a portion of the blank will extend upwardly from and out of the said mold-cavity inthe space formed between the opposing sides of the guiding and shaping extensions 7 8 of saiddiesi It will be understood that prior to the introduction of the blank into the mold-cavity the blank will be heated to the requisite degree. In order to forge and shape the plow-iron or other article, the hammer-die 9 is driven with force toward the dies 3 4, caused to enter the space between the guiding and shaping extensions 7 8, and to deliver its blow on the projecting portion of the blank to force the same into and shape the body portion of the iron or other article in the mold-cavity of the dies 3 4 and immediately thereafter to also upset the projecting portion of the blank and cause the same to be forged and shaped between the hammer-die 9, shoulder 6, and extensions 7 8,

' as shown at Fig. 2, so that the entire plowiron, including both the body thereof and its lateral extension, (indicated in the present instance as the landside 0Z,) are formed simultaneously and integrally, thus rendering it unnecessary to first manufacture the body of the plow-iron and then separately manufacture the offset portion thereof and subsequently weld the same thereto as is now the usual practice.

It will be observed by reference to Figs. 1 and 2 of the drawings that the die 3 is movable vertically, so that the width of the space between the opposing sides of the dies 3 4: may be varied, being widened when the die 3 is raised and narrowed or contracted when said die is driven downwardly. The blank is placed in the mold-cavity between the opposing sides of the dies 3 4 when the die 3 is in the elevated position shown in Fig. 1, and when the hammer-die delivers its blow it serves to drive the body of the blank downwardly into the obliquely-disposed mold-cavity between the opposing sides of the dies 3 4L to drive the die 3 downwardly, thereby compressing the body portion of the blank between it and the die 4 to forge, shape, and finish the body portion of the work, and the hammer-die, which enters the space between the extensions 7 8 of the dies, fits the said space, which constitutes an open mold-cavity, closes the open side of the said cavity, and serves to forge, form, and

shape the offset portion of the work therein, as hereinbefore described.

By my improved means I greatly simplify and reduce the cost of the manufacture of that class of plow-irons and similar articles which constitute the body portion and have a'lateral portion projecting therefrom.

For the purposes of this specification I have shown and described a plow-point as the subject of manufacture, the same having a lateral offset d, constituting a landside. I will have it understood, however, that other plow-irons may be manufactured by my improved appliances by providing dies of suitable shape, and I do not limit myself in this particular. Neither do I desire otherwise to limit myself to the precise construction and combination of devices hereinbefore described, as it is evident that modifications may be made therein without departing from the spirit of my invention and within the scope of the appended claim.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is- Y The combination of a die-block, shapingdies therein, one of said dies being stationary and the other vertically movable in relation thereto, said shaping-dies having a mold-cavity in their opposing sides, and a mold-cavity, open on one side, communicating therewith; and a hammer-die coacting with the shapingdies to forge and shape the body of the work in the first mentioned cavity thereof, and shaped to enter, fit and close the open cavity and to downwardly move the movable die to forge and shape an offset or lateral portion of the work therein, substantially as described.

In testimony whereof Ihave hereunto set my hand in presence of two subscribing witnesses.

MATTHEW M. RENN.

Witnesses:

J. W. BRYAN, GEO. GUTIG.

Images