US1220054A - Armature-banding machine. - Google Patents

Description

G. E. AUSTIN & F. LACHANCE. ARMATURE BANDING` MACHINE.

APPLlcATmN 111.50 AuG.15, 1914.

1,220,054. Patented Mar. 20, 1917.

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G. E. AUSTIN & F. LACHANCE.

ARMATURE BANDING MACHINE.

APPLICATION FILED AUG. l5, |914.

Patented Mar. 20, 1917.

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'UNITED STATES PATEN OFFICE.

GEORGE E. AUSTIN, OF NEW YORK, AND FREDERICK LACI-IANCE, OF BROOKLYN, NEW

YORK; SAID LACI-IANCE ASSIGNOR TO SAID AUSTIN.

A RMATURE-BANDING- MACHINE.

Specication of Letters Patent.

Application led August 15, 1914. Serial No. 856,961.

To all 'whom it may concern:

Be it known that we, GEORGE E. AUSTIN and FREDERICK LACHANGE, citizens of the United States, residing at New York and Brooklyn, in the counties of New York and Kings, respectively, and State of New York, have invented. certain new and useful Improvements in Armature Banding Machines; and we do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. i

This invention relates to electrical repairing apparatus and more particularly to that type used in repairing armatures for motors or the like.

An object of this invention is the arrangement of parts so that the necessary shafting and gearing to produce the desired results permits the normally free ends of said shafts being used for coil windings.

A further object of this invention is a provision of means whereby the several parts thereof may be used at various speeds.

Another object of this invention is a provision of means for feeding a strand of wire Y from the coil to an armature or the like as desired and one in which the tension on the wire fed may be controlled at all times.

Another object of this invention is a provision of an apparatus for repairing armatures and the like in which the revolutions of the armature together with the convolutions of banding wire placed thereon may be recorded.

Further objects will be apparent from the following specification, appended claim and drawings in which,

Figure 1 is a side elevation of a machine constructed in accordance with this invention,

Fig. 2 is an end elevation, y

Fig. 3 is a. vertical sectional view through the machine as on the line 3-3 of. Fig. 1 showing parts in elevation,

Fig. 4 is a sectional view, partly in elevation showing the lever for applying the banding wire, and

Fig. 5 is an edge view thereof.

Referring to the drawings in which similar reference numerals indicate similar parts throughout the several views there is shown a bed 10 which is supported by the legs 11. The bed l() supports a head stock 12V and a.

tail stock 13 of which, the head stock supports the shafts 14 and 15. The shaft 14 extends transversely over the bed 10 and this shaft has a worm 16 secured thereon which meshes with the gear 17 carried by the shaft 15 in the housing composed of the halves 18 and 19. The shaft 15 is journaled in bearings carried by the housing 19, and the upper member of said bearing blocks is separated from the housing 18 so that the housing 18 may be removed without interfering in the alinement of the shaft 15.

rIhe shaft 15 forms a spindle which supports a face plate 15 and this face plate will receive a dog of usual construction carried by the shaft of the work being repaired.

The shaft 14 has a clutch 2O keyed thereto and this clutch is adapted to engage a cone 21 formed on the gear 22 so that power transmitted by the chain 23v from the pinion 24 of the motor 25 may drive the shaft 14. The clutch 20 has a flange 26 formed thereon which may be provided with a brake liner which engages a flange 27 carried by the housing 19 so that when the clutch is disengaged from the cone 21, frictional contact prevents rotation of the shaft 14.

The clutch 20 is actuated by a lever 28 which is fulcrumed as at 29 and which is connected to a treadle 30 through a link 31 and crank 32. A spring 33 normally returns the treadle to raised position.

A carriage 34 is carried by the bed 10 1n having rollers 35 engage the recessed side walls and said bed structure, and in having said rollers journaled in frames 36 which form parts of the carriage 34. This carriage supports a wire reel 37 which is fric tionally held against rotation by the compression spring 38 and frictional disk 39 carried by the carriage 34. The wire is fed from the reel 37 through a guide 40'to the swinging arm 41 from where it is played upon the armature and in passing through the lever 41, it is fed about rollers 42 which engage and roll upon-a centrally disposed sleeve 43 which acts as a roller, between the rollers 42 and which rollers are frictionally held against rotation by the washers 44 whichreceive compression from a spring 45 which engages a hand wheel 46. By this arrangement the desired tension may be had and as the rollers 42 are held in restricted rotation, the frame 47 to which these rollers are secured has a sliding movement against the action of the spring 48 which has one end attached to the plate 47 and its opposite end attached to the lever 41. Should the wire break between the rollers 42 and the armature, the spring 48 would suddenly contract but to prevent any damage being done, a dash pot 49 carried by the lever 41 and plunger 50 carried by the frame 47 come into play and cushion the return stroke of the plate 47. A gage 51 is attached to the plate 47 and a pointer 52 is attached to the lever 41 so that as the plate 47 moves, the graduations on the gage 51 indicate the tension on the spring 48 or wire in passing from the lever 41. The lever 41 is further provided with an anti-friction roller 53 to facilitate in swinging the lever when the banding wire is under tension.

The ends of the shafts 14 and 15 extend beyond the housing to form mandrels upon which coils may be wound and these mandrels are tapped as at 91 to receive screws for clamping bobbins on said mandrels. In Fig. 1 of the drawings, there is shown in dotted lines an armature to be repaired and when it is desired to rotate 'said armature at an increased speed relatively to that of the spindle 15, a split pulley may be placed upon the shaft of the armature and through a quarter twist belt, power may be taken from a jack shaft which may be secured to the underface of the bed and this jack shaft may be driven as by a belt over a. pulley placed on the mandrel 14 as is obvious to anyone skilled in the use of such a machine.

Various modifications may be made within the scope of this invention' as set forth in the following claim without departing from the spirit thereof and having described this invention, we claim:

In a machine of the class' described, a frame to rotatably support an armature, a carriage slidable on said frame, a guiding lever pivotally carried by said carriage, said guiding lever having guide rollers therein, to receive and direct the course of a banding wire through and from said lever, a tension device in said lever for regulating said banding wire as it passes through said lever, said tension device comprising a plate slidably carried by said lever, spindles formed on said plate, rollers rotatably carried by said spindle, said rollers serving to receive the banding wire thereabout, means for frictionally restricting the rotation of said rollers, a scale carried by said plate, a pointer carried by said lever registering with the indications on said plate, a tension spring connecting said plate to said lever and a dash pot carried by said lever to receive a plunger carried by said plate to cushion a sudden return stroke of said plate.

In testimony whereof we aiiix our signatures in presence of two witnesses.

GEORGE E. AUSTIN. FREDERICK LACIIANCE.

Witnesses ELIZABETH VGr. CHnIsToFFELs, HUGO Moon.

Copies of this Vpatent may be obtained for ve cents each, by addressing the fCommissioner of Patents, Washington, DA1.

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