US776104A - Milling-machine. - Google Patents

Description

No. 776,104: PATENTED NOV. 29, 1904.

' J. BECKER.

MILLING MACHINE.

APPLICATION FILED 001a. 1901.

no MODEL. 2 SHEETS-SHEET 1.

- J5. JAZM m W 2 PATENTED NOV. 29, 1904-.

J. BECKER. MILLING MACHINE.

APPLIOATION FILED OCT. 3. 1901.

2 SHEETSSHEET 2.

H0 MODEL.

UNITED STATES Patented November 29, 1904.

PATENT OFFICE.

BRAINARD MILLING MACHINE COMPANY, OF PORTLAND,

CORPORATION OF MAINE.

MAINE, A

MILLING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 776,104, dated November 29, 1904:.

Application filed October 8, 1901. Serial No. 77,407. (No model.)

To. all, whom 711; may concern:

Be it known that I, JOHN BECKER, a citizen of the United States, residing at I%Iydepark, in the county of Norfolk and State of Massachusetts, have invented certain new and useful Improvements in Milling-Machines; and I do hereby declare the following to be a full,'elear, and exact description of the invention, such as will enable others skilled in the art to which it To appertains to make and use the same.

The present invention relates to milling-machines, and more particularly to the crossfeed and elevating mechanisms for the tabl of such machines. 7

5 The object of the present invention is to provide this class of machines with cross-feed and elevating mechanisms arranged to permit the actuation of both mechanisms by hand simultaneously or singly without interfering with each other.

To the above end the present inventionconsists in the devices and combination of devices hereinafter described and claimed.

In the illustrated embodiment of my inven- 5 tion, Figure 1 is a side elevation of a portion of a milling-machine provided with my improved cross-feed and elevating mechanism.

Fig. 2 is a top plan, and Fig. 3 an end elevation, of the knee; and Figs. 4., 5, and 6 are de- 3 tails hereinafter referred to.

1 represents the base of the machine, from which rises the standard 2, which supports the head of the machine. (Not shown.)

3 represents in a general way the knee,

which is provided with the dovetailed groove 4. Correspondingly-shaped guideways 5 on the standard 2 guide the knee in its vertical movement.

Mounted upon the base 1 is the threaded bearing 6 for the screw-threaded shaft 7 the upper end of said shaft being mounted in a bearing 8 in the knee.

A bevel-gear 9, hx edly secured to the shaft 7, is provided with the flange 10, between which and the bearingsurface 11 on the knee are interposed the balls 12. The gear 9 is rotated by means of the pinion 13, rigidly mounted upon the horizontal shaft 14, which is supported in bearings 15 and 16. Splined upon the end of shaft 14 is the slip-gear 17, (shown in detail in Fig. 5,) 5 which meshes normally with gear 18, loosely mounted upon the intermediate shaft 19, and which is rotated by the gear 20 upon the threaded shaft 21. This gear 20 is loose upon said shaft, but is arranged to be clutched thereto by the operator. A convenient form of clutch is that shown in Fig. 4:, where the flange of the gear is provided with clutchteeth 22, adapted to be engaged by correspondingly-shaped teeth 23 on the member 24, which issplined upon shaft 21 and which may be moved longitudinally of the shaft to clutch the gear to or disconnect it from said shaft.

The knee 3 is provided with the guideways 5 25, upon which the saddle (not shown) is mounted and along which it is arranged to have horizontal movement, being actuated by the threaded shaft 21, which passes through a threaded bearing (not shown) on the saddle, 7 0 as is usual in this type of machine.

Suitable driving mechanism is provided for the gear 20, as the gears 26, 27, and 28, the last-mentioned gear being splined upon the shaft 29, which is driven from any suitable source ofpower. Either or both of the shafts 1A and 21 may thus be actuated by power, the clutch for gear 20 being closed when it is de sired to rotate shaft 21, and slip-gear17 being in engagement with gear 18 when it is desired 30 to rotate shaft 1 1.

By moving gear 28 longitudinally of the shaft 29 until it is out of engagement with gear 27 the power may be disconnected to permit the shafts 14 and 21 to be rotated by 5 hand. This has been done heretofore, by means of handles which could be put upon the squared ends of these shafts; but this con struction is objectionable, as the handles interfere with each other, so that it is practio cally impossible to rotate them simultaneously or even singly without first removing the other handle, and the operator is obliged to actuate first one and then the other to adjust or feed the work with relation to the cutter. By the present invention 1 have overcome this objectionable feature, and the operator may now by hand feed or adjust the work in two directions simultaneously or first in one direction and then the other without the necessity of removing either of the handles. The means for accomplishing this result are as follows: Supported in suitable hearings in the knee is the auxiliary shaft 30, Which is obliquely disposed with relation to shafts 14 and 21. Upon shaft 30 is rigidly mounted the bevel-gear 31, which engages bevel-gear 32, secured upon the intermediate shaft 19. Gear 33, also secured upon shaft 19, engages gear 34:, fixed upon shaft 14. The end 35 0f the auxiliary shaft 30 is squared to receive a handle, (see Fig. 6,) as is the end 36 of shaft 21. From the above description it will be seen that rotation of the auxiliary shaft 30 by means of the handle will rotate shaft 14: to raise or lower the knee, while shaft 21 may be rotated independently (the clutch-gear 20 being disconnected from the shaft 21) by means of the handle mounted directly upon the end of said shaft to move the saddle toward or away from the standard 2. Inasmuch as the shaft 30 is obliquely disposed With relation to shaft 21, the handles for actuating these shafts will not interfere when rotated simultaneously or singly. In this connection it will be noted that both shafts 14L and 21 may be simultaneously actuated by one handle upon the end of either of the shafts 21 and 30, the clutch-gear 20 being connected to shaft 21 at that time.

The mode of operation of my device is as follows: The slip-gear 28 being out of engagement with gear 27 and clutch-gear 20 being disconnected from shaft 21, the operator by means of the handles upon the auxiliary shaft 30 and shaft E21 elevates the knee and moves the saddle horizontally to bring the work into proper position beneath the cutter. The handles are then removed, slip-gear 28 pushed back into engagement with gear 27, and the saddle or knee, or both, are actuated by power according to the character of the work.

Although I have shown the auxiliary shaft 30 geared to the knee-actuating shaft 1 my invention is not limited thereto, as it is immaterial which of the shafts 14 and 21 is actuated by the auxiliary shaft 30 and which is actuated by the handle mounted directly thereupon.

Having thus described my invention, I claim as new and desire to secure by Letters Patent of the United States- 1. A milling-machine, having, in combination, a vertically-movable knee, a knee-actuating shaft journaled in the knee provided with a slip-gear, a saddle-actuating shaft journaled in the knee provided with a clutch-gear, an intermediate shaft journaled in the knee, a gear loosely mounted thereon and engaging the slip-gear and the clutch-gear, an auxiliaryshaft journaled in the knee angularly disposed with relation to the saddle-actuating shaft, connections between the auxiliary shaft and the intermediate shaft and between the intermediate shaft and the knee-actuating shaft, and a power-driven gear for actuating the clutchgear, the saddle-actuating shaft and the auxiliary shaft being arranged to be actuated by hand, substantially as described.

2. A milling-machine, having, in combination, avertically-movable knee, parallel kneeactuating and saddle-actuating shafts journaled in the knee, power-driven gearing for operating said shafts arranged to be disconnected from either or both of the shafts, an auxiliary shaft journaled in the knee obliquely disposed with relation to the shafts and geared to the knee-actuating shaft for operating said shaft by hand, and means for operating the saddle-actuating shaft by hand, substantially as described.

3. A milling-machine, having, in combination, a vertically-movable knee, parallel kneeactuating and saddle-actuating sha'fts journaled in the knee, power-driven means for operating the shafts, an auxiliary shaft journaled in the knee obliquely disposed with relation to said shafts and geared to the kneeactuating shaft for operating the knee-actuating shaft by hand, and means for operating the saddle-actuating shaft by hand, substantially as described.

4. A milling-machine, having, in combination, a vertically-movable knee, parallel kneeactuating and saddle-actuating shafts journaled in the knee, an auxiliary shaft journaled in the knee obliquely disposed with relation to said shafts and geared to one of said shafts for actuating said shaft, and connections between the knee-actuating and saddle-actuating shafts constructed and arranged to permit both the knee-actuating shaft and the saddleactuating shaft to be actuated simultaneously by hand-power applied to either the saddleactuating shaft or the auxiliary shaft, substantially as described.

5. A milling-machine, having, in combination, a vertically-movable knee, parallel kneeactuating and saddle-actuating shafts journaled in the knee, power-driven means for actuating said shafts, and an auxiliary shaft journaled in the knee obliquely disposed with relation to said shafts and geared to one of said shafts for actuating said shaft by hand, substantially as described.

6. A milling-machine, having, in combination, a vertically-movable knee, parallel kneeactuating and saddle-actuating shafts journaled in the knee, and an auxiliary shaft journaled in the knee obliquely disposed with relation to said shafts and geared to one of said shafts for actuating said shaft, substantially as described.

7. A milling-machine, having, in combination, a vertically-movable knee, parallel kneeactuating and saddle-actuating shafts jour- IIO naled in the knee, gears upon said shafts, ary and intermediate shai'ts', substantially as means for clutching the gears to the shafts, described. 10 an intermediate shaft journaled in the knee, In testimony whereofl aflix my signature in a gear loosely mounted thereon engaging the presence of two Witnesses.

gears upon the knee-actuating and saddle-ac- JOHN BECKER. tuating shafts, an auxiliary shaft journaled in Witnesses:

the knee angularly disposed with relation to GILBERT BALKAIN,

said shafts, and a gear connecting the auxili- ALFRED L. LOVEJOY.

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