US1254900A - Device for pointing spindles. - Google Patents

Description

A.. M. GUILLET'.

DEVICE FOR POINTING SPINDLES.

, APPLICATION FILED JUNE28. 19m

1,254,900. V. Patented-Jan. 29,1918.

2 SHEETS-SHEET 1.

1,254,900. Patelgfpedjan. 29, 1918.;-

. M 2 SHEETS SHEET 2.

/ EL J V A. M. GUILLET.

DEVICE FOR POINTING SPINDLES.

APPLICATION FILED JUNE 28, 1917.

I i I II; "II

Illllllll @NTTED @TATEg PATENT @FFTQE.

ALBERT M. GUILLET, OF CHARLOTTE, NORTH CAROLINA.

DEVICE FOR rornrmo srn'vnLnsl Specification of Letters Patent. Patented Jan, 29, 1918,

Application filed June 28, 1917. Serial No. 177,547.

To all whom it may concern:

Be it known that I, ALBERT M. GUILLn'r, a citizen of the United States. residing at Charlotte, in the county of h/Iecklcuburg and State of North Carolina, have invented certain new and useful Improvements in Devices for Pointing Spindles; and I. do declare the following to be a full, clear, and exact description of the invention. such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in spindle pointing or sharpening devices.

The primary object of the invention is to provide an attachment for ordinary machine lathes to be used for pointing or sharpening spindles, especially spindles of cotton mills and the like.

Another object of the invention is to provide a device of this character having a new and improved construction by which the spindle is supported and rotatably driven from a rotatablemember driven by the lathe.

The further object of the invention is to provide an attachment of this character having a supporting table for receiving and supporting the spindle, said supporting table being adjustably mounted so as to allow the spindle to be set at various angles to the grinding of the device.

A still further object of the invention is to generally improve upon devices of this class by the provision of an extremely simple, durable and inexpensive construction, one which will be eflicient and reliable in operation, and well adapted to the purpose for which it is designed. v I

With these and numerous other objects in view, the invention consists of certain novel features of construction, and the combination and arrangement of parts as will be hereinafter fully described and claimed.

In the accompanying drawing, forming a part of the application, and in which similar reference characters are used to designate like parts, throughout the several views:

Figure 1 is a top plan view of a conventional type of lathe, showing an attachment constructed in accordance with this invention applied thereto;

Fig.2 is a horizontal sectional view thereof, taken substantially on the line 2-2 of Fig. l.

Fig. 3 is a detail sectional view taken on the plane of line 33 of Fig. l, and,

F1gs. 4 and 5 are transverse sectional vlews of a portion of the device on the lmes 4-4 of Fig. 1 and 55 of Fig. 3 respectively. I Referring more particularly to the drawlngs, and especially to Fig. 1, a conventional form of machine lathe is shown, A designating the bed of the lathe, B the'carriage which is slidable longitudinally upon the bed, 0 the head stock having the usual center D, and E the tail stock having the usual center F.

This invention which is an attachment for lathes such as above described consists of a rotating member here shown in the form of a shaft 1, which is inserted between the centers D and E of the lathe, said shaft being preferably provided at its ends with suitable cone or other shaped recesses to properly receive the points of the centers.

Before inserting the shaft 1 between the centers of the lathe, a dog Gris applied to one end of the shaft, and this dog engages certain portions of the head stock of the lathe in the usual manner, to cause the shaft to be rotated when power is applied to said head stock. Fixed upon the shaftl in any suitable manner is a pulley 2, having a shallow groove 3, in its periphery. Fixed also to the shaft 1 and. placed a short distance from the pulley 2 is a grinding wheel 4.

The other essential part of the invention comprises a supporting table consisting of a table proper 5, which is clamped to the carriage of the lathe by the bolt which usually fastens the tool post or tool holding member to the carriage. The table proper is here shown as being in the form of a flat plate.

Bolted to one end of the table proper is a supporting member 6, comprising a substantial flat rectangular shaped plate having a longitudinal slot 7, through which the bolt which screws into the table 5 extends, and a post 8 at one end thereof. This post Sis bolted to the plate 6 and has no movement relative to the same. The reference numeral 9 designates another post which is identical in construction with the post 8,-

but instead of having no movement with respect to the plate 6, it moves longitudinally relatively to the same, the means for securing the post 9 to the plate 6 comprising a stud which projects downwardly from the post 9 through the slot 7 and being provided with a clamp nut on its lower threaded end.

The posts 8 and 9 have one of their vertical edges recessed at 10, and mounted transversely in these recesses are pairs of rollers 11. These rollers 11 form what may be termed an open bearing for renewing a portion of a spindle which the device is adapted to grind.

The reference numeral 12 designates a substantially rectangular fiat plate having a longitudinal slot 13 through which a bolt let extends to adjustably connect it to the other end of the table proper 5. Fixed to one end of the plate 12 is an upright post 15 on which is revolubly mounted a pair of similarly constructed pulleys 16 having peripheral grooves 17.

In grinding the spindle such as designated by the numeral 18, the spindle is placed so that portions of it engage the pairsof rollers 11. The whirl 19 of the spindle has its smaller end in engagement with one side of the post 9 to prevent longitudinal movement of the spindle as its point is brought to bear upon the grinding wheel 4:. The whirl 19 is provided with the usual grove 20, and passing around and disposed in the groove is a belt 21. This belt 21 passes around the pulleys 16 and also around the pulley 2, be-

ing disposed in the grooves in said pulleys. The plate 6 is adjusted with respect to the table proper 5, so "that the spindle will be ground at the proper angle. The plate 12 is then adjusted angularly or longitudinally or both, so as to .t ghten the belt 21 or to properly position it so that when the shaft 1 is rotated the spindle 18 will be rotated. The spindle is thus maintained in its position with respect to the rollers 11 by means of the belt 21.

It will be seen that a device can be quickly and easily adapted to practically all types of machine lathes without adapting the lathes in any special manner in the application of such a device thereto. The device is of extremely simple construction and is strong and durable and will not easily get out of order. It is adjustable to all various angles to which the points of a spindle should be ground and the spindle can be quickly and easily applied thereto.

From the foregoing description taken in connection with the accompanying drawings,ethe construction, use, and operation of the device will be readily understood without a more extended explanation.

As various changes in form, proportion, and in minor details of construction may be resorted to without departing from the spirit of this invention, it is to be understood that I do not Wish to be limited to the precise construction herein shown and described.

1. A spindle pointing device comprising a rotating member, a pulley and a grinding wheel mounted upon said rotating member, a supporting table, a supporting plate adjustably mounted at one end of said supporting table and provided with means for receiving and supporting a spindle in position to be ground by said grinding wheel, a second plate adjustably mounted at the other end of said table, a pair of tightening pulleys mounted upon said second plate, and a belt passing around said pulleys and the whirl of the spindle for imparting a rotary motion to the latter.

2. A spindle pointing device comprising a rotating member, a pulley and a grinding Wheel mounted upon said rotating member, a supporting table, a pair of posts mounted upon said supporting plate and extending upwardly from the same, said posts being each provided with a pair of rollers for receivin g and supporting a spindle thereon in position to be ground by said grinding wheel, a tightening pulley adjustablymount ed at the other end of said table, and a belt passing around said pulleys and the whirl of the spindle for imparting a rotary motion to the latter.

3. A spindle pointing device comprising a shaft adapted to be inserted between the centers of a machine lathe and rotated by the latter, a pulley and a grinding wheel upon said shaft, a supporting table adapted to be adjustably mounted upon the carriage of the lathe and provided with means for receiving and supporting a spindle thereon in position to be ground by said grinding wheel, a tightening pulley carried by said table, and a belt passing around said pulleys and the whirl of said spindle for imparting a rotary motion ,to the latter.

In testimony whereof I have hereunto set my hand in the presence of two subscribing Witnesses.

ALBERT M. GUILLET.

Witnesses:

EDWARD B. SAUNDnRs, WV. SEYMOUR GRAY.

Copies or? this patent may be obtained for five cents each, by addressing the Commissioner 92 Eateries.

Washington, 30. t3.

Images