US1206518A

US1206518A - Pearl-button-drill sharpener.

Info

Publication number: US1206518A
Application number: US10635616A
Authority: US
Inventors: Paul F Dusha; Anton Feyk
Original assignee: HOLUB DUSHA Co
Current assignee: HOLUB-DUSHA Co; HOLUB DUSHA Co
Priority date: 1916-06-28
Filing date: 1916-06-28
Publication date: 1916-11-28
Anticipated expiration: 1933-11-28

Description

P. F. DUSHA & A. FEYK.

PEARL BUTTON DRILL SHARPENEH.

APPLICATION FILED JUNE 28.1916

1 ,QUfifi 1 8. Patented Nov. 28, 1916.

2 SHEETS-SHEET 2.

WITNESSES INVENTORS 7 EL'ZW'SM 115 1"; "W ALZQWA: V,

AONEYS "time earns arnnr onion PAUL F. DUSI-IA AND ANTON FEYK, OF NEW YORK N. Y., ASSIGNORS T0 HOLUB-DUSHA. COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

PEARL-BUTTON-DBILL SHARPENER.

Specification of Letters Patent.

Patented Nov. 26, 1916.

Application filed June 28, 1916. Serial No. 106,356.

To all whom it may concern:

Be it known that We, PAUL F. DUSHA and ANTON FnYK, citizens of the United States, and residents of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Pearl-Button-Drill Sharpener, of which the following is a full, clear, and we act description.

This invention relates to a pearl button drilling machine, and more particularly 130 means for automatically grinding the drills without requiring them to be taken from the machine or without requiring the machlne to be stopped.

The invention has for its general objects to improve the construction and operation of drilling machines so as to be reliable and eflicient in use and so designed as to have a large capacity, since the drills can be maintained in their best cutting condition for an indefinite length of time.

A more specific object of the invention is.

the provision of a drilling machine of that type embodying a rotary carrier having a plurality of drill-carrying chucks such as disclosed in United States Letters Patent 816,550, granted to L. W. Holub March 27, 1906, and in combination therewith the present invention contemplates a plurality of drill spindles mounted on a carrier rotatable at the same speed as the chuck carrier, and arranged in the path of the drills is a grinding device for grinding or beveling'the op posite sides of each drill-once during each revolution of the drill spindle carrier.

A further object of the invention is the provision of means for alining the drills to bring their beveled surfaces into proper re-- lation with the grinding wheels, whereby the drills can be sharpened with a minimum waste of stock.

With such objects in View, and others which will appear as the description proceeds, the inventioncomprises various novel features of construction and arrangement of parts which will beset forth with particularity inthe following description. and,

claims appended hereto.

In the accompanying drawings, which illustrate one embodiment of the invention and wherein similar characters of reference indicate corresponding parts in all the views, Figure l is a side view of the upper portion o a P l u t drilli m c in B s is a plan view thereof; Fig. 3 is an upper view of the grinding disks and the relation thereof to the path of the drills; Figs. 1- and 5 are detail views showing the manner in which the drills are beveled; Fig. 6 is a diagrammatic view showing the path of the drill with respect to the grinding surfaces whereby the cutting edge of the drill is ground oblique to its axis; and Figs. 7 and 8 are different views of the ground drill.

Referring to the drawing, A designates the button blank chuck section of the machine, the same being substantially the same as the construction shown in the patent heretofore referred to. Briefly this section of the machine comprises a rotary carrier 1 rotated at a speed convenient for the button blanks to be supplied successively t0 the chucks 2, the spindles of which rotate in bearings 3 in the carrier 1, and on the spin dles are pulleys l, certain of which are simultaneously driven by an endless belt 5 engaging with the pulleys.

The means for rotating the carrier 1 is not shown, as it forms no part of the present invention, but it is to be understood that, as the carrier rotates, certain of the buttoncarrying chucks will rotate on their own axes by reason of the driving belt 5 engaging the pulleys 4, and certain of the spindles will be idle as far as individual rotation is concerned, butthey will revolve with the carrier 1, which is in continuous rotation. It is necessary that certain of the chucks be idle so as to permit the button blanks to be placed in ,or discharged therefrom.

The drill spindle section B comprises a carrier formed of upper and lower disks 6 and-7 connected bya central'hub 8 which rotates with a suitably driven upright shaft 9 which passes through the central standard 10. The carrier has a plurality of. vertical spindles lljournaled in the disks 6 and 7, and on the lower end of each spindle is a chuck 12 that holds a drill 13, there being as many drills as there are button-carrying chucks. .and these drills andchucks are in vertical alinement. The drill spindle carrier rotates at the same speed as the button chuck carrier, and the drill spindles are driven by a belt 1% which is looped around the carrier and engages pulleys 15 on the spindles 11. As shown in Fig. 3, there are twelve spindles and seven of them are operative at a time, since the belt 14: is in engagement with seven of the pulleys 15. The other five drill spindles are idle, corresponding to the five idle button blank-carrying chucks. The grinding of the drill takes place during the travel of the idle drills past a suitable grinding device C. This grinding device comprises a pair of

wheels

16 and 17 mounted on a common arbor 18 and rotated asa unit. These wheels have their opposed faces formed of bevels l6 and 17 respectively, for the purpose of beveling the drills. The arbor 18 is mounted in a suitably supported bearing 19 and it is provided with a pulley 20 so as to be driven by a belt or equivalent means. The grinding wheels are continuously rotated at a comparatively high speed and each drill 13 passes between the grind ing wheels engaging first the surface 17 and then the Surface 16, the path of the drill between the wheels being indicated by thedottedline, Fig. 8. The axis on which the grinding wheels rotate if prolonged would pass close to but at one side of the center of the drill chuck carrier, and the plane of the grinding wheels is at a slight angle to a tangential line drawn with respect to the circular path of the drills. By

reference to Fig. 6 it will be observed that the drill also travels in a line 00 y which is a chord with respect to the grinding wheels, and by reason of this, in addition to the travel of the drill in a path oblique to the plane of the grinding wheels, the opposite sides of the drill will be so ground that the [faces (land d will meet in a sharp edge 61 which is oblique to the axis of the drill, which has a decided advantage in drilling pearl buttons.

A steadying device or rest is employed to hold the drill from turning when it is being ground or sharpened, such steadying device being in theform of a finger 21 mounted on a pivot 22 which is fastened on a stationary plate 23 at the top of the machine. Each drill spindle 11 has on its upper end a mutilated pinion 24: formed with a flat surface 25 and this flat surface is adapted to bear against the flat surface 26 on the finger 21, whereby the drill being ground will be kept positively from turning, while being acted on successively by the

wheels

17 and 16. The finger 21 is yieldingly urged against the pinion 2% by a spring'27 which is connected with an arm 28 fastened to the hub 21. In order to properly aline the drills as they approach the grinding wheels,

an aliningdevice in the form of a finger 29 is employed, this finger having rack teeth 30 with which the teeth on the pinions 24 successively engage to thereby cause the drill spindle to be turned until the flat face 25 of the pinion is parallel with the toothed surface 30. The flat surface 25 rides on the toothed surface 30 untilitmeets and passes to the finger 21 and is steadied thereby; The

finger 29 is mounted on a pivot 31 parallel to the pivot 22 and has an arm 32 which is connected with the spring 27, which tends to draw the arms 28 and 32 together and to throw the

members

21 and 29 into the path of the pinions The tip of the finger 21 is kept out of the path of the pinion which is riding off the finger 29 by means of a beveled surface or shoulder 33 on an intermediate portion of the linger 21 and dis posed at an angle to the surface 26. The fiat surface of the pinion 2st on the spindle, the drill of which has just been ground, throws the finger 21 to one side, and when the pinion 2% on the spindle, the drill of which is just approaching the grinding wheel, passes out of engagement with the finger 29, the preceding pinion disen 'ages the shoulder 33 and allows the surface 26 on the finger 21 to engage the surface of the next pinion. lVhen the pinion 21 disengages the finger 29 and is engaged by the finger 21, the succeeding pinion 21- will mesh with the rack teeth 30, and the spindle thereof will be rotated to bring the drill into proper alinement. In this manner the drills are successively sharpened intermediate the periods when the blanks are drilled. While the invention is shown in connection with a drilling machine, it is to be understood that it can be applied to other machines where tools cut or finish the faces of button blanks by the employment of a plurality of button chucks, and tools mounted on moving carriers after the principle herein disclosed.

From the foregoing description taken in connection with the accompanying drawing, the advantages of the construction and method of operation will be readily understood by those skilled in the art to which the invention appertains, and while we have described the principle of operation, together with the device which we now consider to be the best embodiment thereof, we desire to have it understood that the device shown is merely illustrative and that such changes may be made when desired as fall within the scope of the appended claims.

Having thus described our invention, we claim as new and desire to secure by Letters Patent:

1. A pearl button working machine 'comprising a rotary carrier having a plurality of rotatable button chuck spindles, a second rotary carrier having a plurality of rotary tool-carrving spindles, and a grinding device disposed in the path of the tool-carrying spindles and constructed to operate successively on opposite sides of each tool for producing oppositely disposed bevels thereon.

2. In a machine of the class described, the combination of a rotatable carrier, tool holders mounted thereon, and a rotary grinder having spaced oppositely disposed beveled surfaces with which each tool successively engages for producing opposite bevels on the tools.

3. A machine of the class described comprising a rotatable carrier, a rotatable t00lcarrying spindle, and a grinding device disposed in the path of a tool in the spindle. said grinding device comprising spaced oppositely disposed beveled surfaces with which the tool successively engages to produce opposite bevels on opposite sides.

-l. In a machine of the class described, the combination of a rotatable carrier, a spindle rotatably mounted on the carrier at a point eccentric to the axis thereof, a toolcarrying chuck on the spindle, and a relatively fixed grinding devic including spaced rotating beveled surfaces disposed at a slight angle to the path of the tool for'caus ing one surface to engage one side of the tool and then the other surface the other side of the tool for producing opposite bevels.

A machine of the class described including a revolving tool spindle carrier, a rela tively stationary grinding device, spindles on the carrier traveling across the grinding device, and relatively stationary means acting on each spindle for moving each spindle to a predetermined position as it crosses the grinding device.

6. A machine of the class described including a revolving tool spindle carrier, a relatively stationary grinding device, spindles on the carrier traveling across the grinding device, and relatively stationary means acting on each spindle for moving each spindle to a predetermined position as it crosses the grinding device, said means including a pinion having a flat side on each spindle, a spring-pressedtoothed member with which each pinion engages, and a springpressed member with which the flat side of each pinion engages to prevent the spindles from turning as the tools are acted on by the grinding device.

7. A machine of the class described including a revolving tool spindle carrier, a relatively stationary grinding device, spindles on the carrier traveling across the grinding device, and relatively stationary tfopies of this patent may be obtained for five cents each, by addressing the Washington, D. (3.

means acting on each spindle for moving each spindle to a predetermined position as it crosses the grinding device, said means including a pinion having a flat side on each spindle, a spring-pressed toothed member with which each pinion engages, and a spring-pressed member with which the fiat side of each pinion engages to prevent the spindles from turning as the tools are acted on by the grinding device, said last-mentioned member having an inclined surface with which the flat side of each pinion engages after the spindles pass the grinding device to throw the last-mentioned member but of the path of the pinion on the spindle moving into operative relation with the grinding device.

8. A machine of the class described in cluding a revolving tool spindle carrier, a relatively stationary grinding device, spindles on the carrier traveling across the grinding device, and relatively stationary means acting on each spindle for moving each spindle to a predetermined position as it crosses the grinding device, said means including a pinion having a flat side on each spindle, a spring-pressed toothed member with which each pinion engages, a springpressed member with which the fiat side of each pinion engages to prevent the spindles from turning as the tools are acted on by the grinding device, said last-mentioned member having an inclined surface with which the flat side of each pinion engages after the spindles pass the grinding device to throw the last-mentioned member out of the path of the pinion on the spindle moving into operative relation with the grinding device, and a common spring acting on the members to hold them in the path of the pinions.

9. The combination of a rotary grinding element having oppositely disposed beveled surfaces, and means for supporting and moving a drill to move in a chordal line with respect to the said surfaces and oblique to the plane of rotation of said element, whereby the drill is ground on opposite sides with a sharp edge oblique to the axis of the drill.

PAUL F. DTTQHA. ANTON FEYK.

Commissioner of Patents,