US872036A - Machine for cutting spiral oil-channels in boxes, bearings, &c. - Google Patents

Description

No. 872,036 PATENTED NOV. 26. 1907.

' W. WATTIE.

' MACHINE FOR CUTTING SPIRAL OIL CHANNELS IN BOXES, BEARINGS, 6w.

APPLICATION FILED JULY 1. 1905.

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I WWWQ/ZIW I No. 872,036. PATENTED NOV. 26. 1907.

W. WATTIB. MACHINE FOR CUTTING SPIRAL OIL CHANNELS IN BOXES, BEARINGS APPLICATION FILED JULY 1, 1905.

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g4 lg I d\ w 5 4" 2. o m an. m aw m my improvements UNITED STATES PATENT OFFICE.

WILLIAM WAT'iIlC, OF WORCES'IER, MASSACHUSE'l"lS, ASSItiNOR TO UROMP'RON & KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

MACHINE FOR CUTTING SPIRAIOIL-CHANNELS IN BOXES, BEARINGS, 8&0.

T c all "whom it may concern:

Be it known that l, \VILLIA)! Wart-in, a citizen of the United States, residing at 'orcester, in the county of Worcester and State of Massachusetts. have invented ter t ain new and useful Improvements in Nachines for Cutting Spiral ()il-(hannels in Boxes, Bearings, &c... of which the following is a specification.

My invention relates to a machine for cutting spiral oil clnumcls in boxes. bearings,

etc., and particularly relates to a supplefeatures of construction of my improvements, as will behereinaiter t'ull described. I. have shown in the drawings hiliitl'fitllt portions of said patented machine, with my nnprovements combined therewith, to en ab 0 those skilled in the art to understand the construction and operation thereof.

Referring to the drawingsz-l igure l is a side view of said patented machine, with my improvclmints combined therewith. Fig

'2 is, on an enlarged scale, a vertical sectional View of the parts shown at the left in Fig. 1 Fig. 3 corresponds to Fig. 2, but shows some of the parts in a dill'erent position, and also shows the spindle in section. Fig. 4 isa longitudinal sectional view of a box or hearing, showing a. spiral groove cut. therein by Fig. 5 shows the guiding spindle. or pin, and supporting yoke, detached.

In the accompanying drawings, 1 is the bed of the machine, having supporting legs 2,l and upon the upper surt'ace ol the bed 1, ways or guides for the longitudinally reciprocating rack bar 3, which has thereon a block 4 having a hole therethrough, and a set screw or bolt 5 for srcuring the end of the spindle (3 to said block. 'lhe rack bar 3 has a longitudinal reciprocating movement communicated thereto by a pinion 7, fast on a shalt 8, mounted in suitable hearings 3 on the bed l of the machine. Also fast on the shaft 5 is a gear 10, which is in mesh with and Patented Nov. 26, 1907.

! driven by a pinion, not shown, fast on the shaft ll" mounted in bearings 11 secured l to the underside of the bed 1.

l l is fast a belt pulley 12, driven by a belt,

not shown. to rotate the shaft 11, the. pinion thereon, not shown, the gear 10, and the pinion 7, to move the rack bar 3, in the usual way.

(ln the front end of the bed 1 of the machine is secured an upright stand 13, having a threaded hole therethrough to receive a bushing 14-, see Fig. 2.

All of the above mentioned parts may be of the same construction as similar parts shown and described in said Letters Patent, No. 275,393.

1 will now describe my improven'ients.

U am the bed l. of the machine, between the holding block 4 on the rack bar 3, and the stand I. is secured. in this instance by bolts 15, a box or hearing it), having in this instance its inner surface to, of soltermetal, with iongit udiual spiral shaped grooves upon its inner surface, to receive the longitudinal spiral shaped threads 6 on the rotary spindle t3.

lhe inner end of the rotary spindle 6 is turned down, and extends loosely through a sleeve 1N, which is held on the turned down end of the spindle o, by a collar it) The sleeve 18 is secured within the hole through the block 4 by the set screw 5. The outer end of the spindle 6 has in this instance a screw threaded hole (3 therein, to receive the screw threaded end )t) of the euttiiu spindle .Zt), which extends loosely, through the bushing 14, see Fig. 2. A nut 2t on the threaded end 2t) ol' the spindle 2t). and turned up against the end oi the spindle ti, secures the spindle 20 to the spindle t).

tudinal hole 2t) therein, into which loosely extends a guide spindle or pin 3'2, which is attached at its outer end to a yoke 23. In this instance the outer end of the pin 22 is turned down and threaded, and extends through a hole in the outer end of the. yoke 33, and has a nut 24 thereonf The guide pin 22 is turned down at its central portion, l'orming the retluceil-portion 2." with inclined ends 212", and also at its inner end, leaving the incline 22".

in connection with the spindle 20, and the guide pin '22, is used a cutting tool 2.5,which in this instance is secured in a lever or sup- ()n the shaft on said lever in engagement with the spindle or pin see Fi 's. 2 and 3.

The cylindrical box or-bearing 29, to have a spiral oil channel cut therein, is mounted on the spindle 20, and bears at its inner end against the bushing 14 in the stand 13. The inner ends of' the yoke 23 bear against the outer end of the box or bearing 29, and hold the guide pin 22 stationary, relatively to the longitudinal movement of the spindle 20 carrying the cuttingtool 25,- and prevent any inward movement of said guide pin.

From. the above description in connection with the drawings, the operation of my improvements will be readily understood by those skilled-in the art.

The rack bar 3 is moved to its outer position, shown in Figs. 1 and 2, and the horror hearing 29 to be operated on, is placed upon the spindle 20, see Fig. 2, the yoke 23 and the guide pin 22 having been first removed, and then replaced. Power is ap )lied to the machine, and the longitudinal inward move ment of" the rack bar 3 will move the spindle 6 with it, and also through the spiral shaped threads 6 engaging the spiral shaped grooves in the bearing 16, will cause said spindle 6 to rotate, and with it the spindle 20, carrying the lever and cutting tool 25. The longitudinal motion of the spindle 20, will cause the cutting tool 25 to engage with the-inner surface of the box or hearing 29, and be drawn through said box or hearing, and the rotary mo'von'ient of the spindle 20, will cause a spiral shaped groove or channel 29 to be cut in the box or bearing 29, see Fig. 4, which intersects the oilhole 29 The guide spindle or pin 22 is stationary, and also the box or bearing 2!), so that as the spindle 20 is drawn along through the box or bearing 25), the projection 26 on the lever 26 carrying the cutting tool 25, will pass from the reduced portion 22 see Fig. 2, up the inoline 22 and onto the larger portion, as shown in Fig. 3, and force the cutting tool muuurdly, and cause. it to engage with the inner surl'ace ol' the box or bearing 29, within the end oi' the bearing, torut a groove or channel in. the inner surface of the box or hearing it, see i ig. I), which groove or channel has raio'. 1?. ends, as shown in Fig. 4, so that the oil cannot pass out of-said channel, from the ends of the hearing.

The guide pin or spindle 22 has the enlarged portion thorooi' oi such a length, that ting tool, am said cutting tool, of a guide pin erases it will act on the cutting toolarm 26 to move it outwardly onl after the cutting tool has passed by the en of the bearing, and the reduced inner end 22" ofthe pin 22 will allow the cutting tool arm to'move outwardly, before the cutting toohpasses out of the inner end of the bearing, thus cutting an oil channel or groove with closed ends.

A channel or groove may be made with open ends, by changing the position of the inclines 22" on the guide pin 22 relatively to the engaging. projection 26 on'the lever 26 carrying the cutting tool '25. 1

By varying the size of the spindle 20, different sizes of boxes and bearings can be operated on, and different "lengths of spiral grooves or channels canbe made, byv var ing the amount of longitudinal movement otthe rack bar 3, and the channels or grooves may be cut through the ends of the boxes or bearings, if desired.

It will be understood that the details of construction of my improvements may be varied if desired.

Instead of making the s indles 6 and 20 as two separate spindles, w 'ch is the'preferable construction, they may be made as a single spindle, in one art, if preferred.

v Having thus descri ed my invention, what I claim as new and desire to secure by Letters Patent is I 1.- In a machine of the class described, the combination with a longitudinally reciproeating rack, of a longitudinally movable and rotary spindle connected with said rack, a

second spindle connected with the first mentioned spindle to move therewith, and carrying a movable cutting tool, and said cutting tool, a guide pin extending loosely within the spindle carrying the cutting tool, and means for holding said guide pin stationary longitudinally relatively to said spindle and. said cutting tool, and said guide pin engaged by the cutting tool and moving the cutting tool into operative position, and allowing the cutting tool to be moved out of operative posi tion.

2 In a machine of the class described, the

romhination with a longitudinally movable and rotary s indle carrying a movable cutcxtondiug loosely within said spindle, a yoke attached to said guide in to acid the same stationary longitudinally relatively to said cutting tool, and said pin engaged by the cutting tool during the longitudinal and rotary movomont'of said spindle, to move the cutting tool into (1)8]8iv'lVB position, and release the cutting tool, to allow it to homovcd out of operative position.

' it itncssos:

J. (J. DEWEY, M. liAAS.

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