US792287A - Channeling-machine. - Google Patents

Description

No. 792,287. PATENTED JUNE 13, 1905. W. PRELLWITZ.

OHANNELING MACHINE.

APPLICATION IILBD SEP'LZ, 1904.

2 SHEETS-SHEET 1 No, 792,287. PATENTED JUNE 13, 1905. W. PRELLWITZ.

GHANNELING MACHINE.

APPLICATION FILED SEPT. 2, 1904.

2 SHEETS-SHEET 2.

q. I i I J 2 55726 mew, j g f Patented June 13, 1905.

PATE T OFFICE.

WILLIAM PRELLWVITZ, OF EASTON,

INGERSOLL SERGEANT DRILL CORPORATION OF VEST VIRGINIA.

CHANNELlNG-IVIACHINE.

SPECIFICATION forming part of Letters Patent No. 792,287, dated June 13, 1905. Applica ion filed September 2 1904. Serial No. 223,101.

To all whom, it may concern:

Be it known that 1, WILLIAM PRELLWITZ, a citizen of the United States, and a resident of Easton, in the county of Northampton and State of Pennsylvania, have invented a new and useful Channeling-Machine, of which the following is a specification. I

My invention relates to channeling-machines, and more particularly to the mechanism for feeding the drill to its work, the object being to remove the strain from the bevelgear and provide for taking up wear without affecting the meshing of said gear and to further provide for adjusting the operating-handle bodily in any desired position with respect to the operator.

A practical embodiment of my invention is represented in the accompanying drawings, in which Figure 1 is a view in side elevation of the upper part of the shell which supports the drill and its driving mechanism with the feedscrew and its operating-gear in position as in use. Fig. 2 is a vertical section of the same, and Fig. 3 is a transverse section in the plane of the line A A of Fig. l.

The shell is denoted by 1. Its upper end is reduced, forming a shoulder 2, on which the split collar 3, embracing the said reduced upper end of the shell, rests. The ends of the split collar 3 extend outwardly and upwardly and form the lower half-bearing 4 for holding the feed-operating shaft in position. A bolt 5, extending through the parts of the split collar, is provided with a nut 6 for drawing the parts together to clamp the collar to the shell or permitting the parts to separate to loosen the collar and admit of its being rotated on the shell.

The feed-operating shaft is denoted by 7, and the upper half-bearing, which coacts with the lower half-bearing 4 to hold the shaft in position, is denoted by 8. The shaft7is provided with an operating-crank 9 on its outer end and with a bevel-faeed pinion 10 on its inner end.

The feed-screw is denoted by 11. It has an annular shoulder 12, which abuts against a seat 13 on the shell, and the cylindrical head 14 of the feed -screw extends upwardly through the reduced portion of the shell and a considerable distance above the upper end of the shell, where its end is provided with a screw-thread 15 for the reception of an adjusting-nut 16 and a lock-nut 17.

The upper end of the shell is provided with an annular recess 18 around its bore, and in said recess a pile of washers is located. These washers are preferably made of different metals-steel and gun-metal, for instance-the steel washers 19 being arranged alternately with the gun-metal washers 20.

Above the pile of washers 19 20 there is located a sleeve 21, its lower end resting on the pile of washers and its upper end provided with a cap 22, on which the adjustingnut16 bears. The sleeve 21 is connected to rotate with the screw-head 14 by a spline 23, which permits the head 14 to move longitudinally within the sleeve independently of the sleeve, and the bevel gear-wheel 24, in mesh with the pinion 10 for driving the feed-screw,

is mounted on the sleeve 21 and connected to rotate therewith by a Spline 25, which permits the wheel 24 to move endwise without affecting the sleeve.

Between the wheel 24 and the upper end of the shell there is interposed a washer 26, which may be renewed whenever it becomes Worn. The washer 26 also separates the wheel 24 from the upper end of the split collar 3.

Between the cap 22 and the wheel 24 there is interposed a spring 27, which holds the wheel 24 seated on the washer 26, while the hammering action of the feed-screw 11, transmitted to it from the action of the drill, will be taken by the pile of washers 19 20, the sleeve 21 and its cap 22, and the nuts 16 17, thus relieving the bevel-gear from any severe strain and materially extending its life, as well as saving the loss of time in renewing a broken wheel. Furthermore, the very considerable wear on the collar 12 and face 13 and on the bottom of the sleeve 21 under the continual running of the machine may be taken up by simply screwing down the nuts 16 17 without affecting'the meshing of the gears 10 and 2.4.

The operating-crank 9, together with the shaft 7 and split collar 3, may be rotated about the upper end of the shell by loosening the bolt 5, the pinion 1O traveling along the wheel 24 idly, thus providing for the location of the said crank where it will best suit the operator or the conditions.

\Vhat I claim is- 1. The combination with the shell and feedscrew, of gear connected with the feed-screw, driving-gear carried by the shell and means for adjusting the driving-gear in dili'erent radial positions with relation to the axis of the feed-screw.

2. The combination with the shelland feedscrew, of driving-gear and means for adjusting the driving-gear on the shell in different radial positions with relation to the axis of the feed-screw.

3. The combination with the shell and the feed-screw, of driving-gear, a support for the driving-gear, said support being mounted on the shell in rotary adjustment and means for locking the support to the shell.

4. The combination with the shell and the feed-screw, of a split collar mounted in rotary adjustment on the shell, drivinggear carried by said split collar and means for clamping the collar to the shell.

The combination with the shell and the feed-screw, ot' a gear-wheel connected to rotate with the feed-screw, the said feed-screw being free to reciprocate longitudinally independently of the gear-wheel, and means for driving the gear-wheel and hence the feedscrew.

6. The combination with the shell and the feed-screw, of a sleeve splined to the feedscrew, a gear-wheel mounted on and splined to the sleeve, means for holding the gearwheel yieldingly in position and means for driving the gear-wheel.

7. The combination with the shell and the feed-screw, of a nut for locking the feedscrew to the shell, a sleeve interposed between the nut and the end of the shell and connected to rotate with the feed-screw, a gear-wheel mounted on the sleeve and connected to rotate with the sleeve and means for operating the gear-wheel.

8. The combination with the shell and the feed-screw, the shell being provided with a pile of washers in its end, of asleeve connected with and surrounding the head of the feedscrew and bearing on the pile of washers, a nut bearing on the said sleeve and operatinggear connected with and surrounding the said sleeve.

9. The combination with the shell and the feed-screw, of a nut on the feed-screw, a sleeve connected with the feed-screw and interposed between the shell and the nut on the feed-screw and provided with a cap, a gearwheel connected with and mounted on the sleeve, a spring interposed between the gearwheel and the cap on the sleeve and means for operating the gear-wheel.

10. The combination with the feed-screw, its driving mechanism including intermeshing gear and a support for the driving mechanism, carried by the feed-screw, of means for taking up wear between the feed-screw and said support without disturbing the relative positions of the intermeshing gear.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 26th day of August, 1904.

WILLIAM PRELLIVITZ.

itnesses:

WVARD RAYMOND, RUsseLL IVILHELu.

Images