US1908829A

US1908829A - Broken axle puller

Info

Publication number: US1908829A
Application number: US595601A
Authority: US
Inventors: Earl John Louis
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-02-27
Filing date: 1932-02-27
Publication date: 1933-05-16
Anticipated expiration: 1950-05-16

Description

May 16, 1933. EARL 1,908,829

BROKEN AXLE FULLER Filed Feb. 27, 1932.

'trated' in Patented May 16, 1933 ,umren sir-Ares PAT T oF i cs JOHN LOUIS EARL, or sanleivronro, 'rnXAs, Assrsnoa or one-rourarn 'ro EDWIN orv SAN ANTONIO, EXAS" V 7 BROKEN AXLE FULLER Application filed February 27 -,.1932. se1a1 No. 595,601.

This invention relates to axle or shaft pulling means. i 1

An object of this invention is to provide a novel puller which may be extended into an axle or shaft housing so as'to withdraw a broken shaft mounted within the housing.

Another object of this invention is to .prov ide in a puller of this kind mechanical means which is adapted to be used for pulling or withdrawing the shaft from a bearing or housing where it is impossible to dispose a clamp or other pulling means aboutthe periphery of the shaft.

Theabove and various other objects and advantages of this invention Wlll 1n part be described in and in part be understood from the following detailed description of the present preferred embodiment, the same being illusthe accompanying drawmg, wherem I Figure 1 is a longitudinal section partly in detail and partly broken away 'ofa shaft puller constructed according to the preferred'em bodiment of this invention;

Figure 2 is a detail end elevation of the shaft clamping means;

Figure 8 is a diagrammatic view showing the puller in an electric circuit.

Referring to the drawing wherein like numerals of reference designate corresponding parts throughout the several views, the numeral l0 designates generally a clamping member which is provided at the outer end thereof with a pair of opposed V-shaped shaft engaging members 11 terminating in a flared end portion 13. These shaft engaging members 11 are spaced apart and are adapted to have movement relative to each other so that shafts of various sizes within the limits of the puller can be frictionally or resiliently clamped between the clamping jaws 11.

The inner end of the puller or clamping member 10 is provided with a shank 12 having a threaded bore 14: which is adapted to threadably receive an armature 15. This armature 15 has a solenoid or coil 16 disposed thereabout, and the armature 15 is provided adjacent the outer end thereof with a nut or collar 17 having a shoulder 18 to receive Figure 3, is designated ,ofcourse, donotwish to belimited to a battery, as any} suitable. source of current supply member 10. may; be projected the tension be suiiicientto withdraw the shaft from the v If. desired,ghowever, the switch .S

a sleeve 19 of substantially cylindrical construction.

- The opposite :or upper end of the armature 15.is also threaded, and a nut 20 is threadably mounted thereon and is also provided with a shoulder 21 to engage the upper end of the sleeve 19 and hold the sleeve 19 concentrically about the coil or solenoid 16. In this manner, the windings of the coil will be suitably protected during the use of nut 22 preferably engages about the upper end of the armature I5 and locks the nut 20against movement. This nut 22 is provided with peripheral'threads 23 and an elongated hollow handle 24 is threadably mounted on the nut 22. The ends of the wire of the coil 16 are projected through-the nut 20, asat 25, and are also extendedthrough the nut22 and connected. to a' suitable source of current supply which, in the present instance, as shownlm as a battery B, but I,

can be used. A switch'S is interposed in the electric circuit C to which the coil 16 is ,con-

nectedrf- In the use of this device, the clamping into-an axle housing'and if the end of the shaft which is broken extends outwardly of the bearing in the housing, the clamping member 10 can'be slipped about the periphery of the shaft, and of the clamping member '11 will housing; can be closed, thereby magnetizing the clamp -10 which,';in the presentinstance, constitutes an extension .ofjthe armature 15. 'maime'r, an additional frictional means is providedwcoacting rwith the inherent resiliencyf of the clamping armsll'in gripping theshaft which it is desired-to withdraw from the housing; l

In this In the event the end of the shaftdoesnot project: beyond: the. outer'edge of the bear- 'ing Within which the shaft is mounted, the clamping memberlOdmay be removed from the armature '15 and the armaturenl5 prof'jected intothe housing'so that ilJ'Will contact -with the endof the shaft. The switch. Scan the puller. A lock j prising an armature,

then be closed and the magnetism generated by the coil 16 will hold the armature into by engagement with the end of the shaft and permit the pulling of the shaft outwardly of the bearing.

It will, therefore, be seen that the shaft puller herein disclosed is readily adapted for use in the pulling of shafts which can be en] gaged by the clamp 10 orshafts which are broken off to a point where a gripping means cannot engage about the periphery thereof. This handle 24 can be made of any suitable length so that the puller can be projected into any desired axle housing and in like man-,

ner, various sizes of clamping members 10 may be mounted on the armature 15.

It is, of course, understood that various changes and modifications may be made in thedetails of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims.

\Vhat is claimed is 1. A broken axle puller as setforth comprising a clamp having V-shaped complementary arms adapted to frictionally engage about the surface of a shaft, a handle secured to the clamp and extending longitudinally thereof andmeans carried by the handle for magnetizing the arms.

2. An axle pulling means as set forth comprising in combination, an electric circuit, a coil 1n said circuit, an armature for the 0011,

a handle, means for securing the handle to the armature in alinement therewith and opposed resilient clamps carried by the ar mature.

3. An axle pulling means as set forth comprising a interposed between the handle and the clamp clamp, a handle, a magnetic means to energize the clamp, and means for connectmg the magnet to a source of current supply.

4. An axle pulling means as set forth comprising an axle gripper, ture threadably engaging the gripper and the handle, and a coil disposed about the armature to energize said armature and said gripper. I

r 5. An axle pulling means as set forth coma coil about the armature, a handle, means for securing the bandle to the armature, an electric circuit with-, inwhich said coil is interposed, a shield disposed about the coil and resilient axle clamps carried by the armature for magnetization thereby. I V

p 6. An axle pulling means as set forth comprising an armature,

signature.

a handle, an armaried by the armature for magnetization there- 7. 'An axle pulling means as set forth comprising an armature, a coil about the armature, threaded collars carried by the armature and engaging against end of the coil, a shield engaging the collars and disposed about the coil, a handle secured to one end of the armature and extending longitudinally thereof and clamps carriedby the other end of the armature.

8. An axle pulling means as set forth comprising an elongated armature, a coil disposed about the armature and terminating inwardly of each end thereof, a shield, means engaging the armature and the shield to hold the shield concentrically about the armature, a handle secured to one end of the armature, andaxle clamping means carried bythe other end of the armature for engagement with a shaft. I

9. A broken axle pulling means comprising an armature, a coil disposed about the secured to the opposite end of the armature and extending longitudinally thereof, said axle gripping means being energized upon energization of the armature.

10. .A broken axle puller comprising a clamp, a coil adapted to be interposed in an electric circuit, a core, and means for connecting the core to the clamp to magnetize the clamp upon magnetization of the core. In testimony whereof I hereunto aflix my JOHN LOUIS EARL.

a handle threadably secured to one end of the armature, acoil disposed about the armature intermediate,"

the ends thereof, a protecting shield disposed about the coil, and resilient axle clamps car-