US1586943A - Apparatus for the manufacture of electric cables - Google Patents

Description

June 1 1926. 7 1,586,943

A. 6. BROWN APPARATUS FOR THE MANUFACTURE OF ELECTRIC CABLES Filed July 17, 1925 2. Sheets-Sheet 1 June 1,1926.

A. G. BROWN APPARATUS FOR THE MANUFACTURE OF ELECTRIC CABLES 2 Sheets-Shet '2 Filed July 17, 1925 Fig.3.

Patented June 1, 1926.

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TENT

ARTHUR GEORGE BEO'WN, OF MANCHESTER, ENGLAND.

APPARATUS FOR THE IVIAINUFACTURE F ELECTRIC CABLES.

Application filed July 17, 1925, Serial No 44,392, and in Great Britain July 25, 1924.

- This invention relates to apparatus for the manufacture of electric cables of the type in which revolvin g drums are-provided containing cables under treatment either for drying, impregnating, vijilcanizing or other process, the said drums being carried on -a gear situated outside the chamber or upon rotary frames actuated by the said driving 'ear.

b Andin order that the invention may be better understood it will now be described with reference to the accompanying somewhat diagrammatic drawings in which Fig. 1 shows in cross section and Fig. 2 in longitudinal .section one form of apparatus made according to the invention particularly suitable for heavy drums.

Figs. 3 and 4 show similar views of another form of apparatus according to the invention for dealing with a number of small drums.

In Figs. 1 and 2, 5 is thechamber for containing a heavy drum of cable, when under treatment, the drum being shown 1n outline in Fig. 1 at 6. 7 is a removable cover to one end of the chamber allowing access to be obtained thereto when required. 8 are rails fixed in suitable positions within and at the lower part of the chamber 6 adapted to carry a truck 9 having wheels 10. 11 are long rollers mounted in suitable bearings carried by the truck 9 and adapted to be driven by chain gears 12 and 18 and a suitable chain, from a shaft 14 supported by the pedestal bearing 15 carried by the truck 9. 16 is a shaft mounted in a stuffing box bearing 17 carried by the chamber and adapted to be driven directly by a pulley 18 or through suitable reduction gearing. A clutch or coupling 19, part carried by the shaft 14 and part by the shaft 16 connects the two shafts when the truck is in position within the chamber as shown in Fig. 2.

In action the cover 7' is opened and the truck run outside where it is loaded with a large drum of cable, after which it is run into the chamber so that the parts of the clutch 19 engage. The shaft 16 is then driven and the cover 7 closed. The rollers 11 are rotated in the same direction at a desired speed by the driving shaft and the drum mounted thereon is thus caused to rotate continuously during the treatment of the cable within the chamber 5.

The rotation of the drum reduces the tendency to decentralize the copper of the cable when being vulcanized or otherwise treated and this tendency can still further be reduced by rotating the drum alternately in opposite directions. Owing to the fact that the drum rotates on its own axis the alternate rotation in opposite directions prevents the cable on the drum fro-m becoming tight or slack as it tends to do when rotated continuously in one direction, which tightness or slachness may cause decentraliza- .tion of the copper. Any suitable means may be provided for causing the alternate rotation in opposite directions of the shaft 16, for instance a striking gear automatically operated by the rotation and CO-OPQI'ZLt". ing with straight and crossed belts on suitable fast and loose pulleys.

The construction shown in Figs. 3 and a is generally similar to that described with reference-to Figs. 1 and 2 except that the rollers 11 and their driving gear are replaced by frames 20 which are fast to the shaft 1 1, in this case carried by two bearin gs 15.

Dismountable shafts 21 are carried between the frames 20 and these shafts are adapted to carry a desired number of small drums shown in outline at 22. These drums are prevented from turning on their own axes by suitable means, such as looking the shafts 21 to the frames by a key or the like.

When the truck 9 in this form is outside the chamber the shaft 14 may be revolved by suitable gearing such as the gearing 23, r

from a suitable handle to bring the frame into suitable positions for loading and unloading the various drums and shafts 21. Automatic means may further be added for throwing this hand gear out of mesh when the truck is pushed into position in the chamber, to prevent the hand gear being broken upon starting the driving shaft 16. This automatic means may comprise a suitably disposed trip lever co-operating with .a projection inside the chamber.

In the form of theapparatus shown in Figs. 3 and 4 other frames 20 intermediate the end frames shown may be provided. Each adjacent pair of frames may sup-- port a number of separate shafts 21 be tween them. The bearings carrying these shafts .21 may comprise a hinged or other- Wise movable or detachable part to facilitate the mounting and dismounting of the shafts 21 carrying their associated drums.

In operation with this form of the apparatus it will be seen that the drums do not rotate on their own axes but only turn with the frames 20 on the shaft 14. There is thus no tendency for the cable thereon to become tight or slack. Further during the rotation of the shaft 14: it will be appreciated that all points of the periphery of each drum in turn become the lowermost point and thus decentralizing of the copper owing to gravity is prevented.

Suitable rails or guides may be provided on the exterior adjacent the cover 7 on which the wheels of the truck may run and in some cases the truck may be so constructed that it can easily be turned about its centre to facilitate its movements when out of the chamber.

The invention is not limited to the coupling means shown as any suitable means may be provided for connecting the driving gear situated outside the chamber to the shaft carried by the truck to revolve the latter when in position in the chamber.

What I claim and desire to secure by Letters Patent in the United States of America is:

1. Apparatus for the manufacture of electric cables comprising a structure forming a treating chamber, a Wheeled carriage ports carried between the frames, to which supports drums containing cables are adapted to be fixed so that all points of the peripheries of the drums in turn become the lowermost and thus decentralizing of the copper owing to gravity is prevented.

2. Apparatus for the manufacture of electric cables comprising a structure forming a treating chamber, a wheeled carriage arranged to be run into said chamber, means for carrying drums containing cables 011 said carriage, and exterior driving means for rotating said drums in the chamber, an axle carried by the carriage adapted to be driven by the exterior driving means, additional and hand operable gear for turning said axle when disengaged from-the exterior driving means, frames fixed to and carried by said axle and supports carried between the frames, to which supports drums containing cables are adapted to be fixed so that all points of the peripheries of the drums in turn become the lowermost and thus decentralizing of the copper owlng to gravity is prevented.

In Witness whereof I aflix my signature.

ARTHUR GEORGE BROWN.

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