US1286867A - Combined machine-tool and crane. - Google Patents

Description

L. l. YEOMANS.

COMBINED MACHINE TOOL AND CRANE.

APPLICATION HLED MAR-3. 1916- RENEWED OCT. 11. 1919.

1,286,867, Patented Dec. 3,1918.

' CZZQ J frame of the lathe, 2

LUCIEN I. YEOMANS, OF CHICAGO, ILLINOIS, ASSIGNOR TO AMALGAMATED MACHINERY CORPORATION,

or CHICAGO, ILLINOIS, A CORPORATION OF NEW YORK.

COMBINED MACHINE-TOOL AND CRANE.

Application filed March 3', 1916,

To all whom it may concern:

Be it known that 1, LUCIEN I. YEOMANS, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Combined Machine-Toohand Crane, of which the following is a specification.

The object of this invention is to provide a machine tool, as for example, a lathe, with improved means to facilitate the operation of placing work in the machine and of removing the finished pieces. 7

In the accompanying drawings Figure 1 is a perspective fragmental view of a combination lathe and crane embodying the features of my invention. Fig. 2 is aview of one of the tongs or grapples of the crane.

In the drawings,

the chuck or face plate carried by the head stock, 3 the dead center carried by the tail stock, and 4 the tool rest or carriage. An upright 5 is rigidly secured to the framework of the lathe. An arm 6 is pivotally supported upon the upper end of the upright 5 for pivotal movement in a horizontal plane. To the free end of the arm 6 is secured a vertical spindle or pivot 7 extending downwardly from the arm. mounted intermediate its ends upon the pivot 7 for rotation in a horizontal plane. At the opposite ends of the carrier 8 are sheaves 9 carrying a rope or cable 10, which is free to be reciprocated in said sheaves. To the opposite ends of the cable 10 are secured grapples or tongs 11 of any suitable construction. Each tong 11 is adapted to embrace and support a piece of work of the kind for which the machine tool is intended, as for example, the case of an explosive shell. In the embodiment herein shown, 12 are the jaws of the tongs, 13 the handles, 14 are links pivotally connecting the handles to the lower end of a bar 15, and 16 is a hand-leverpivoted to the upper end of the bar 15 and conn cted intermediate its ends to the end of the cable. 17 is a pivoted latch to lock the handle in the position shown in the's'everal views. Preferably, the cable 10'is of such length that when one of the tongs is in engagement with a shell case lying. upon the floor and the handle of that tongs is up, the other tongs is at the right height to engage a shell case held by the lathe centers, the

Specification of Letters Patent.

1 denotes the bed or A carrier 8 1s pivotally or s'wiveled, v

Patented Dec. 3, 1918.

Serial No. 81,804., Renewed October 11, 1918. Serial No. 257,792.

hand-lever of the last mentioned tongs being down. v

While the manner of using the crane may be varied, one method is asfollows: Assume that the handle of the tongs 0 is up; that sa d tongs is in engagement with a case b lying on the fioor beside the lathe. Assume also that the handle of the tongs d is down.

weights carried by the opposite ends of the cable 10 are equal save for the material removed from the case a in the lathe, be seen that to raise the case 6 into the horizontal plane of the lathe centers, the operator needs merely to exert enough force to compensate for the material removed in the lathe. The case I) having been raised into the horizontal plane of the lathe centers, sa1d case is swung into position between the centers, the arm 6 and carrier 8 revolving to the required extent. The case I) having been chucked in the machine, the tongs 0 are released from the case b and swung clear of the machine. While the case b is being turned in the lathe, the operator disengages' the case a from the tongs d and engages said tongs with another case to be turned. As soon as the case b has been turned, the operator places the tongs 0 in engagement therewith and removes said case b from the lathe as hereinbefore described.

It will be seen that the lathe and its crane constitute a unitary, self-contained structure, thus obviating the necessity of providing special supports in the building for the crane. It will also be evident that the pivoted arms 6 and 8 permit the pieces operated upon to be raised and lowered and swung into and out of position between the it will lathe centers with a minimum of exertion on I claim as my invention:

1. The combination of a machine tool, an upright supported thereby, an arm pivoted to said upright to swing in a horizontal plane. a carrier swivelcd to said arm and. positioned to swing in a horizontal plane relatively to the arm, a cable reciprocably supported by said carrier and freely movable therein, and Work-engaging devices attached to the respective ends of the cable,

whereby either work-engaging device is raised as the other is lowered.

2. The combination of a machine tool, an upright supported thereby, an arm pivoted at one end to said upright to swing in a horizontal plane, a vertically-disposed bolt-secured to the other end of said arm, a carrier ha 'ing means between the ends thereof to rotatably engage said bolt to swing in a horizontal plane relatively to the arm, a cable reciprocably supported by said carrier and freely movable therein, and work-en gaging devices attached to the respective ends of the cable, whereby either Work-engagingdevice is raised as the other is,

lowered.

In testimony whereof, I have hereunto set my hand.

LUCIEN I. YEOMAN'S,

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