US1129545A - Lathe for the turning of wheels. - Google Patents

Description

E.BLAU.

LATHE POR THE TURNING 0F WHEELS. APPLICATION FILED MAY 28, 1913. 1,129,545, Patented Feb. 23, 1915.

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UNTTED STATES PATENT FFTQE;

ERNST BLAU, 0F RATIBOR, GERMANY.

LATE-IE FOR THE TURNING OF WHEELS.

Application filed May 28, 1913.

To all whom it may concern Be it known that l, ERNST BLAU, engineer, subject of the Kingdom of Prussia, residing at Ratibor, Germany, have invented certain new and useful mprovements in Lathes for the Turning of Wheels, of which the following is a speciiication.

This invention relates to lathes of the kind in which the gripping of the axle is effected in a known manner by means ot divided internally cylindrical and externally conical sleeves or bushings, which have the object of rendering the distance of the wheel rim from the face plate independent of the diameter of the neck or journal of the axle.

Tn the constructions hitherto used an internally conical sleeve has been placed over the axle neck and the main spindles of the lathe were bored out conically. ln the movement toward one another of the two main spindles the latter were forced over the gripping sleeves whereby the axle was centered and gripped fast. Where axle necks of varying diameters occurred, differently long movements of the head spindles one with regard to the other had to be provided for. As a result of this the distances or' the wheel rims from the face plates also varied and it thus became almost impossible to locate the tires always in the same position with regard to the tools. ln order to attain this as nearly as possible, repeated and wearisome trying had to be resorted to by the attendant. Now according to the present invention it is possible to determine the position for wheels of equal construction once for all with precision by the provision of an abutment or mandrel which is guided in the main spindle. For wheels of dilierent construction a suitable adjusting device is arranged for the abutment. Now if the wheels were gripped in the manner used hitherto by moving, for instance, the right-hand sliding support or head stock toward the left-hand one until the collar on the axle neck is brought against the abutment, the right-hand gripping cone would no doubt be tightened, whereas the left-hand cone would either be loose in the conical recess of the head spindle or it would attain its bearing so soon as to prevent the axle collar and the abutment from coming into contact with each other. It is, therefore, .necessary to provide an intermediate member which as has hitherto been the case with the main spindle is bored out conically, but is independently adjustable of the latter.

Speccation of Letters Patent.

Patented Feb.. 23, 1915.

Serial No. 770,390.

In the drawings, Figure 1 illustrates by way of example the left-hand portion of a lathe in which the improvement according to the present invention is embodied. Fig. 2 is an enlarged detail cross sectional view of a part of the mechanism, and Fig. 3 is a part sectional and part elevational view taken on line 3 3 of Fig. 2.

Arranged on the journal or neck l of the axle 2 in a known manner is the gripping sleeve or chuck 3. In inserting the wheel, the mandrel 5 is caused to bear against the front face l of the collar. The mandrel 5 is arranged within the main spindle 6 and is adjustable in any suitable manner, for instance, by means oi' a screw thread and nut 7 in axial direction. Surrounding the cone 3 is a sleeve 8 which is axially movable within the main spindle 6 and is pressed over the cone 3, for instance, by means of a spring 9. Consequently the mandrel 5 serves for the' adjustment of the distance between the wheel and the face plate and the movable sleeve 8 is used for tightening the cone 3. This arrangement is necessary only on one side (left side) of the lathe. 0n the other side, both the abutment 5 and the sleeve 8 may be dispensed with and the conical bore may be provided in the usual manner in the main spindles.

What I claim and desire to secure byLetters Patent is l. In a lathe for turning wheels, the combination with a head stock, of a main spindle, a divided internally cylindrical and outwardly conical sleeve for gripping the neck of the wheel axle, means movable in said main spindle to tighten said gripping sleeve and a mandrel also movable in said main spindle relatively to said gripping sleeve and adapted to form an abutment for the collar on the neck of the wheel axle substantially as set forth.

2. ln a lathe for turning wheels, the combination with a head stock of a main spindle, a divided internally cylindrical and outwardly conical sleeve for gripping the neck of the wheel axle, spring actuated means for tightening said gripping sleeve and a mandrel arranged within the main spindle for adjustment relatively to said gripping sleeve and adapted to bear on the collar on the neck of the wheel axle thereby determining the distance between the wheel and the face plate, substantially as set forth.

3. In a lathe for turning wheels, the combination with a head stock of a main spindle, means for gripping the neck of an axle, resiliently mounted means for causing said gripping means to close upon the axle, and means mounted Within said spindle and having a movement independent of said gripping means whereby it may be positioned to act as a stop to position the neck of the axle introduced into the head stock.

l. In a lathe for turning Wheels, the com-A In testimony whereof have aflixed my 20 signature in presence of. two Witnesses.

ERNST BLAU.

Witnesses:

PAUL WEISS, ERNST KATZ.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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