US1548756A - Device for making axle casings or the like - Google Patents

Description

Aug. 4, 1925 A; C. SCOTT DEVICE FOR MAKING AXLE CASINGS OR THE LIKE Filed Jan. 8, 1924 FIG-'5.

fflvenfor 1925971 a 56055 Patented Aug. 4, 1925.

UNITED STATES ALBERT COMMON SCOTT, OE EDINBURGH, SCOTLAND.

DEVICE FOR MAKING AXLE CASING-S OR THE LIKE.

Application ma January 8, 1924.. Serial No. 635,046.

To all whom it may concern:

Be it known that I, ALBERT- COMMON Soon, a subject of the King of Great Britain and Ireland, residing at 14 Brougham Place, Edinburgh, county of Mi-dlothian, Scotland, have invented new and useful Improvements in a Device for Making Axle Casings or the like, of which the fOllOwing is a specification.

The said invention has for its object to provide an improved and simple device for use in expeditiously and economically constructing rear axle structures for motor road vehicles, of the type in which the axle structure comprises a central frame for supporting the diiferential gear, and two tubular sleeves through which the driving axles of the rear wheels extend.

In carrying out my invention, the devic consists of two angle pieces, having upturned opposing ends, arranged to slide freely on, or in, a base plate, and so that they may move away from, or towards, each other, in a direct line. To the upturned-ends of these angle pieces, are attached two blocks, the outer faces of which are convexly shaped and correspond to the internal contour of the central frame to be produced. On either side of these inner blocks are arranged two outer blocks, one of which is preferably fixed to the base plate, whilst the other is movable, but means are provided for holding same in a predetermined position. The opposing faces of the outer blocks are recessed, with concavely projecting parts at the top and bottom, the distance between these projecting parts is determined by the size of the central frame to be produced.

The device is operated by a wedge which is pressed between the upturned-ends, of the angle pieces, to which the inner blocks are attached, forcing same apart.

In order that my said invention and the manner of performing the same may be properly understood, I hereunto append sheet of explanatory drawings to be hereinafter referred to in descibing my invention.

Figures 1 and 2 are respectively a side elevation, and a cross section, of a tube of varying diameter, and having diametrically opposed slits, from which the axle structure is to be produced. Figs. 3 and 4 are similar views showing the tube partially opened. Figs. 5 and 6 are similar views, butshowing the tube completely opened and formed to serve as a central casing. Fig. 7-is a side elevation of the tool employed to impart the form shown in Figs. 3 and 4. Figs. 8 and 9 are respectively a sectional side elevation and a plan of the device employed to impart the completed form, shown in Figs. 5 and 6. In these drawings the same reference numerals are used to mark the same or like parts wherever they'are repeated.

As shown in Figs. 8 and 9 of the drawings, the device consists of two blocks 1 and 2. The block 1 is fixed on the base plate 3, whilst the block 2 is retained in position thereon by a stop 4. The opposing faces of the blocks 1 and 2 are provided with recesses 5 and 6, preferably conforming to the final external contour of the central frame of the axle, and also with concavely projecting parts 7 8 and 9 10 at the top and bottom respectively. Interposed between the blocks 1 and 2 are two small blocks 11 and 12, the outer face, in each case, being convexly shaped so as to conform to the final internal contour of the central frame of the axle, and said blocks are connected respectively to the upturned-ends of the angle pieces 13 and 14, which are guided and slide in the base plate 3, so as to allow of them moving away from, Or towards, each other, in a direct line, by means of a wedge 15.

The tool shown in Fig. 7 consists of a base plate 18 and two jaws 19 and 20 disposed thereon, the jaw 19 being fixed, and the jaw 20 movable, these jaws being adapted to engage with and apply pressure to the sides of the elongated slot (Fig. 1) in the tube, whereby said slot is extended or drawn out to the form shown in Figs. 3 and 4.

In operation the action of the improved device is as follows The tube is heated, and its central part 16, shown in Figs. 1 and 2, is drawn out to the form shown in Figs. 3 and 4, by means of the tool shown in Fig. 7 as hereinbefore described. The central part 16 of the partially formed axle structure, as shown in Figs. 3 and 4, is now introduced between the blocks 1 and 2 with its longitudinal axis at right angles thereto, and so that the blocks 11 and 12 projectwithin said central part. The blocks 11 and 12 are now forced apart by means of the wedge 15, pressing against the opposing faces of the upturned angle pieces 13 and 14, thus imparting to the axle structure the final form shown in Figs. 5 and 6, that is to say, a circular form, with an inwardly pro- A device for use in the manufacture of.

rear axle casings or structures for motor road vehicles comprising base plate, a pair.

of spaced blocks fixedlyinoiinted thereon, the inner feces of said fixed blocks having recesses therein forming concave Walls, the two Walls being opposed to one another and lying in su bste ntiallythe se ne circle, a pair of inner movable forming blocks disposed in the space between the fixed blocks, said forming blocks being smaller than the recesses and adapted 'to enter the recesses, w ereby to orce en. ep rt p of metal into the recesses and transform it into a circuler bend having flanges projecting inwardly from its edges. i

In testimony whereof I have signed my name to this specification.

ALBERT COMMON SCOTT.

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