US12228A - Metal tubes - Google Patents

Description

K l 2 Sheets*Sheet 1. W. BEASLEY. MANUFAGTURING METAL TUBES.

No. 12,228. Patslnted Jan. 9, 1855.

2 Sheets- Sheet 1.

. W. BEA'SLEY. l MANUFACTURING METAL TUBES.

No. 12 228 Patente-d Jan. 9, 1855.

. I "rw IIIIIIf-INIIIIIIEUI UNTTED sTATns PATENT onnicn.

WILLIAM BEASLEY, OF SMETHIGK, NGLAND, ASSIGNOR TO J. BRETT AND J. W. BRETT, OF WESTMINSTER, (LIV. TUPPER, OF LONDON, AND WM. BEASLEY, OF SMETHWICK,

ENGLAND.

MANUFACTURING METAL TUBES.

l specification of Letters Patent No. 12,228, dated January 9;, 1855.

England, a subject of the Queen of Grreat Britain, have invented, made, and applied to `use certa-in improvements'in the manufacture of metallic tubes,appl1cable to the manufacture of gun and pistol barrels, and

of tubes for other purposes, as well as of large pieces of ordnance; and I do hereby declare that the following specification,

taken in connection with the accompany,

ing drawings, forms a full andvexact description of my said invention and of the manner Ain which the same is to'be per-- formed.

The nature of my invention consists, first, in the use of a rolled tapered strip or band of metal, iron or steel, or a mixture of the two, beveled at the edges and hollow on the underside; by which peculiarform I obtain a much stronger joint than can be obtained with the ordinary vstrip or band used in making twisted gun-barrels; second, in the application of cross rolling to the coil of iron or other metal, for the purpose of giving a perfect weld to the joints of the tube thus formed.

The three accompanying sheets of drawings are marked severally Sheet A, Sheet B and Sheet C.

In Sheet A, Figures 1 and 2 are cross sections of the band of metal, showing its beveled edges, and the concavity of the under side. Fig. 3 is a longitudinal perspective view of the band. Fig. 4 shows the band coiled in the form of a heliX around a mandrel.

In Sheet B, Fig. 1 is an elevation of a twisting' or coiling machine, by which the strip or band of metal is coiled around a mandrel. Fig. 2 is a top viewY of the same. Fig. 3 is an end elevation. Fig. 4 is a transversc section, and Fig. 5 an enlarged view of t-he socket (d Fig. 1) to be attached to the inner face of the slide.

In Sheet C, Fig. 1, is a side elevation of the cross `rolling machine. Fig. 2 isa plan of the same. Fig. 3 is an elevation of one end, and Fig. 4: an elevation of the opposite end of the said machine.

In these drawings, where letters of reference are employed, similar letters refer to like parts in all the figures on each sheet.

No detailed description is necessary to feirplain Sheet A, it will be readily understoo-d by mere inspection. In Sheet B, A is a sliding carrier traversing the rods o, b. C is a face plate having upon it a projecting rod o-r claw c. 0l is a socket of peculiar form, 'attached to the inner face of the carrier A. This socket is seen enlarged in Fig. 5, from which its form will be readily understood. e is a roller rest to support the band or strip during the process of winding. y

In Sheet C, the letters ji, f, Fig. 2 show the proportion of the coil when placed in the rolls. It will also be seen by an inspection of this sheet -that in order to produce atapered tube I give a taper to the rolls and hang them in converging lines so that the large ends ofrthe rolls shall form the large end of the tube and the small ends of the rolls the small end-of the tube or barrel.

; The manner in which my process is carried into operation is as follows z-After the strip or band has been prepared of the shape shownin Sheet A, Figs. 1, 2, and 3, it is ready to be coiled around the mandrel. In order to accomplish this,` the sliding carrier Al (see Sheet B Figs. 1 and 2) is brought up to the face plate C, the socket d, being on the inner face of the carrier A as shown in the drawing. When the end of the socket is against the face plate C, the mandrel is inserted through the carrier A and socket Z and rests in a recess or hole in the center of the face plate C. The strip or band of metal to be coiled is then introduced between the mandrel and the projecting claw c on the face plate C` and in contact with the spiral end of the socket d. The face plate is then revolved by any suitable power when the combined act-ion of the claw, mandrel and socket upon the metallic band causes it to assume a coil or twist around the mandrel. The twisted strip or band acts on t-he principle of the screw against the spiral end of the socket a?, and, as the coiling proceeds, forces back the carrier A on its guide rods 5', Z). The free or uncoiled end of the strip or band is supported by the roller rest e projecting from the carrier A until the whole of the strip has been wound o-r coiled.

The strips may be coiled to the right or v left, by having the socket made one with the incline to the right and another with the incline to the left and reversing the motion of the face of the plate, or by having a double machine Worked by one driving wheel, in which case both the right and leftcoil may be made at the same time without reversing the motion of the machine.

When the coiling of the strip is completed, the mandrel is removed, the coil shaken oii'l and the uncoiled ends clipped olf obliquely so as to make the end of the tube square.

The coil is then brought to a welding heat in a suitable furnace, and is removed, atthat heat, to the cross rolls, by means of a mandrel having a collar upon it, and a stem somewhat shorter than the coil itis intended to support. While the upper of the three rollers is raised to admit the coil, thick at-rst, the coil is subjected to a jamming or crushing force in the direction of its length, exerted by means of the mandrel and its collar, against the solid head or holster of the rolls. The mandrel is then Withdrawn, the upper roll lowered, and the operation of cross rolling completed.

To obviate the friction of the end of the coil or tube against the head or holster a small'pivot or puppet is inserted in the holster, at the central point between the three rolls, and revolves with the coil or tube.

During the process of jamming up and also during the cross rolling, a blast of air may be supplied from suitable apparatus along the entire Alength of the rolls. The

coil at the same time revolving rapidly receives the blast on every side. The blast keeps the coil at a welding heatduring the process of jamming up, and when that has been completed, and the upper roll lowered, it has the eiect of keeping the rolls cool.

l/Vith regard to the twisting or coiling machine shown in Sheet B, I am aware that somewhat similar machines have been employed, and apparently analogous means adapted for supporting the strip and mandrel; but my machine diers from those hitherto made in the arrangement of the slide, roller rest, claw, vand socket, by which a self-acting and continuous support is afforded tothe mandrel.

Having thus fully described the nature of my invention, I should state that I do not claim subjecting metal tubes to cross rolling as that has been done before. But what I do claim as of my invention and desire to secure by Letters Patent is,

The forming of a metallic tube, by winding a strip of metal spirally on a mandrel, and welding it by cross rolling, substantially as described. v

In testimony that the foregoing is a correct 'description of my invention I have' hereunto subscribed my name in presence of two witnesses.

t WILLIAM BEASLEY. Witnesses:

G. W. YAPP, CHAS. F. GRANSBURY.

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