US628097A

US628097A - Button-drilling machine.

Info

Publication number: US628097A
Application number: US70863699A
Authority: US
Inventors: Frank M Joslin
Original assignee: HARRY A INMAN
Current assignee: HARRY A INMAN
Priority date: 1899-03-11
Filing date: 1899-03-11
Publication date: 1899-07-04
Anticipated expiration: 1916-07-04

Description

Patented July 4, I899.

F. M. JOSLIN.

BUTTON DRILLING MACHINE.

(Application filed Mar. 11, 1899.)

. 3 SheetsSheet (No Model.)

Pateht'ed July 4, 1899.-

3 SheetsSheet 2 593 C l-Heine u I v F M JOSLIN BUTTON DRILLING MACHINE.

(Application filed Mar. 11, 1899.)

No. 628,097. Patented July 4, I899.

' F. m. .msuu.

BUTTON DRILLING MACHINE.

(Application filed. Mar. 11, 1899.)

3 Sheets-Sheet 3,

(No Model.) I

w a M Mm UNITED STATES PATENT QEFICE.

FRANK M. JOSLIN, OF AMSTERDAM, NEW YORK, ASSIGNOR OF ONE-HALF TO HARRY A. INMAN, OF SAME PLACE.

BUTTON-DRILLING MACHINE.

SPECIFICATION forming part of Letters Patent No. 628,097, dated July 4, 1899.

Application filed March 11, 1899. Serial No. 708,636. (No model.)

To all whom, it may concern:

Be it known that I, FRANK M. J OSLIN, a citizen of the United States, and a resident of Amsterdam, in the county of Montgomery and State of New York, have invented certain new and useful Improvements in Button- Drilling Machines, of which the following is a specification. 1

The features embodied in my machine will be hereinafter explained in detail, one or two of the more important ones of which I will refer to here, as follows: My machine is so timed that the. approach and withdrawal of the buttons to the drills are retarded at the commencement and end of the movement, but relatively rapid during the intervening time, so that the feed is slowest at the time the drills enter the buttons and also at the time they are passing through their lower sides. In this way chipping of the buttons is avoided. Again, the construction is such that the drills are stationary and the buttons are lifted to them.

This secures much better and more accurate drilling. Again,the machine is so constructed that the plate which carries the buttons is during the drilling operation held absolutelyrigid in proper position, so that no chattering of the buttons is possble, whereby chipping is avoided and the drilling of the buttons rendered more perfect. Again, the construction is such that when the button-carrying plate is looked, as above stated, and the drilling operation is performed the belt that rotates that plate is made to slip, so that the instant the locking device is released the plate moves, whereby the speed of the machine is increased.

In addition to the above-stated advantages I have embodied in this machine certain novel devices for rendering its operation automatic in several respects and for securing desirable adjustments, whereby more satisfactory operation of the machine and more perfect work are obtained.

Referring to the drawings hereof, Figure 1 is a front elevation of the machine. Fig. 2 is a side elevation. Fig. 3 is a plan of the button-carryin g clutch-plate. Fig. 4 is a vertical sectional detail of the button-carrying clutch-plate and coacting parts, taken on the 4 line X X of Fig. 3 and looking in the direc- :8 is a detail, partly in section, of the cam mechanism for actuating the plunger upon which the button-carrying plate is supported.

A is the base of the machine, and B the standard rising therefrom. O is a table on top of thestandard. These parts are preferably a single casting,but may be made as preferred.

D is the main driving-pulley, supported upon a shaft E,which is journaled in a bracket F, preferably cast on the standard B.-

v G and G are speeded pulleys actuated by the belt H. The speed-pulley G is mounted upon the shaft I, which passes through the machine, and on its left-hand end, as shown in Fig. 2, is the plunger-operatingmechanism, which will be hereinafter described. On the right-hand side of the standard there is a pinion J,which meshes into a gear-wheel K,which is mounted upon a shaft supported in the standard, upon which shaft there is also keyed the pulley L. 1

I will here state that in the drawings hereof I show grooved pulleys in many instances. This is not essential. Any desired form of pulleys and belts may be employed, and in some instances, if desired, gearing may be substituted for the pulleys.

M M are two idlers mounted upon axes N, attached to the standard.

0 is a horizontally-disposed pulley (best seen in Fig. 4:) which is mounted upon a stud P,which forms part of the plunger Q,and cast integral with the pulley O is a ratchet-wheel R. (See Fig. 7.) On top of the plunger Q there is a horizontal plate S,which supports,

by means of studs T, a ring-like structure U, the inner face or edge of which (shown at V, see Figs. 8 and 4) is made in the form of a cam.

W is a thin circular plate, preferably about as thick as the thickest buttons that will be drilled upon the machine, which is fastened by screws a a to the upper surface of the pulley-block O and which revolves in thedirection of the curved arrow shown on the face ICO of Fig. In this plate IV a series of halfround openings 1) b b (see Figs. 3 and 4) are made of about the diameter of the buttons to be drilled. In this plate also there are made certain radial grooves c c, in which slide clutch-plates (Z d, which are made in the form shown in Fig. 6that is to say, they preferably are about as thick as the plate IVand in their front end there is a semicircular recess e, corresponding to the recess 1) in the plate W, and from their under side, near the rear end,there isa downwardly-extend ing stud f, about which there is preferably a sleeve 7, to which is attached a spring 72, which abuts at the inner end against the bottom of a recess -i,made in the pulley-block O. The outer surface of the sleeve g engages with the camshaped edge V of the ring U, so that as the plate IV revolves, carrying the clutch-plates dd with it, they are by the action of the cam Vexerted in one direction and by the action of the springs h in the opposite direction caused to move slightly inwardly and outwardly,thus forming clutches to hold the huttons. It will he noticed (special reference being had to Fig. 3) that the cam is so located that the four clutches which are at any time at the right-hand side of the plate W are closed firmly, holding the button-blan ks within them, all the others being open.

j is a plate superposed upon the buttoncarrying plate W, which serves to hold the clutches d in place.

is a washer placed under the nut Zin order that the plate 7' may be held properly in position.

m is a feeding trayor table, near which the operator sits to feed the blanks to the plate. It is cut out at one edge, so as to conform to the shape of the rotary plate IV, as usual.

The ring U is not perforated excepting at one point that is to say, at the point marked 11, (see Figs. 3 and 5,) which registers with the point at which the last closed or buttongripping clutch (I will stop after the drilling has been completed--and the under side of the opening is reamed, as shown in Fig. 5, so that the button will easily drop through into a delivery-chute 0 and be discharged into a suitable receptacle. Above this opening there is arranged a brush 1), supported upon a suitable standard g, which is in turn supported upon a block 7, attached to the upper framing of the machine.

The plunger Q passes downwardly through a slideway 8, (see Figs. 1 and 2,) and at its lower end is provided with a transverse slideway 25, in which is arranged a horizontal sliding block "Lt. (See Fig. 8.) The shaft I passes through the standard, and from its forward end there projects an eccentric-pin c, which passes through a sleeve to, the exterior surface of which snugly engages with the inside of the sliding block a. To the outer end of this sleeve there is threaded a cap y, and at the base of the threads on the sleeve there is formedacircum ferential shoulders, against which is clamped, by means of the screw-cap y, a lever a, (best seen in Fig. 1,) which is perforated, so as to fit over the end of the sleeve, as shown, that it may be clamped between the cap y and the shoulder .2 upon screwing up the cap firmly in such manner that these three parts-the sleeve to, the lever a, and the cap y-will become practically an integral structure. In the face of the lever a is a concentric slot 1), in which works a set-screw c, which is tapped into the sliding block tt. The sleeve to is what may be called an eccentric sleeve that is to say, the hole bored through it is eccentric to the actual axis of the sleeve, whereby the metal on one side of the sleeve is much thicker than on the other side, as shown clearly-in Fig. 8. It will be seen, therefore, that as the shaft I revolves the eccentric-pin 1) on the end of it, engaging with the sleeve to and, through it, with the sliding block a, will cause the plunger Q, carrying on its upper end the button-carrying clutch-plate and all the coacting parts, to rise and fall once to each revolution of the shaft, and also that by loosening the set-screw c and moving the lever a upwardly or downwardly, as desired, the position of the eccentric sleeve to relative to the horizontal sliding block to may be changed, so that the initial position or the plunger may be adjusted vertically as desired, and that these adjustmen ts may be exceedingly delicate or minute. It will also be observed that owing to the occentricity of the crank-pint) on the end of the shaft I the starting and stopping movements of the plunger, whether on its up-or down stroke, are relatively slow as compared with its movement intermediate these two points, so that the feed of the drills in entering the buttons and in passing through their lower sides will be much slower than during the time they are drilling the medial portions of the buttons.

The stop-movement devices, whereby the clutch-plate is held immovable during the drilling operation, are shown in Fig. 7. As above stated, R is a ratchet-wheel attached to the pulley-block 0. d is a pawl pivoted at e to any suitable part of the plate S and held by a spring f in contact with the ratchet R. g is a stud attached to any suitable part of the machine,which supports a rocking latch 71' by a pivot 2". Near the lower end of the latch h there is a setscrewj, whereby the position of the latch can be regulated. The pawl d at its lower end engages with the upper end of the latch h, as shown clearly in Fig. 7, and the rear end of the pawl and the upper end of the latch are beveled in such manner, as shown in Fig. 7, that upon the upward movement of the plunger the pawl will press the latch 71. to the right and will not be moved by it, but upon the downstroke the meeting surfaces of the pawl and latch are changed, so that the latter will control the former and will withdraw it, compressing the spring f from the tooth of the ratchet R with which it is then inengagement, and immediately thereafter free the pawl again, so that it will be instantly engaged with the succeeding tooth. The set-screwy" is provided so that this action of these parts may be secured by properly adjusting it. is a belt traversing the pulley L, the idlers M M, and the pulley O, and this belt is traveling all the time, so that when the pulley O is held against rotation by the ratchet and pawl above described this belt slips, at all times, however, exercising its power to start the pulley O and the button-carrying plate attached to it as soon as the pawl d releases the ratchet R.

Referring now to the drills and their coacting parts,on top of the cap-plate O of the standard there is a plate or table-like structure Z, upon which is supported an upper plate m by posts at, and between these plates, at one side, is arranged a shaft 0, upon which a series of pulleysppp are journaled, and upon the outer end of the shaft 0' there is'a driving-pulley q, over which passes a belt r,which may be directed by idlers s, suitably journaled, as desired. At the opposite ends of the plates Z m are arranged the drill-spindles t t t 15', preferably four in number, each of which is provided with a belt-Wheel u.

o n v o are belts which pass about the pulleys p and 11/ of the respective spindles. The drills w are attached to'the drill-spindles by clutches in the usual manner. These spindles are staggered in their adjustment, as shown in Fig. 2, so that two of them are nearer the axis of the machine than the other two,

and they are preferably adjustable by means of a set-screw y at their upper ends, so that the drills may be thrown slightly in or out, as desired, so that the holes in the buttons will be drilled at a greater or less distance radially from their axis or center, depending upon the size of the buttons.

From the foregoing the construction and operation of the machine will be readily understood by those who are familiar with this art. A brief general description, however, of the operation will be now given.

As the button-carrying clutch-plate revolves, alternatly opening and closing the clutches and periodically discharging the drilled buttons, the operator feeds the buttonblanks to the opened clutches, which as they approach the drills are closed by the action of the cam-plate U. Thus the button-blanks are firmly held by the clutches. Thereafter as the button-carrying plate revolves by a step-by-step movement, there being,as shown, fourteen teeth in the ratchet-wheel R and fourteen clutches in the clutch-plate, the

plunger carrying the clutch-plate and buttons is automatically elevated, so that the drills engage theclamped buttons, each drill drilling its own hole and each button being subjected to the operation of but one drill at a time, and the adjustment of the clutch-plate relative to the drills, as above stated, maybe exactly defined as the nature of the material or size of the button requires. Owing to the peculiar construction of the plunger-operating mechanism the feed of the buttons to the drills at the commencement and conclusion of the drilling operation is slower than intermediate these points, so that chipping of the buttons or injury to the drills is avoided. After the blank has been drilled by the last drill the next step or movement of the clutchplate opens the clutch and releases the drilled blank, which will by its own gravity ordinarily drop through the opening at in the ring U and be conducted by the delivery-chute into a suitable receptacle. If it should stick for any reason, the brush p acts as an ejector, and likewise clears the clutch of any dust or powder resulting from the drilling operation.

It will be obvious to those who are familiar with this artthat various modifications may be made in the details of the machine without departing from the essentials of the invention. I therefore do not limit myself to such details, and particularly I call attention to the fact that any number of drills other than four may be used and that theymay be arranged to drill holes in the blanks at such points as desired; also, that the motive power may be applied to the machine differently than suggested by me and that the details of construction of the clutch-plate-and the plunger-operating mechanism may be altered. I have, however, found those above described by me a very useful form and in many respects,from a mechanical standpoint,superior to certain others that I have tried, particularly since they embody certain features original with me whereby many practical advantages are secured and also durability and accuracy of operation of the machine. Therefore in the claims hereof I will protect myself in the use of some of these mechanical features.

I claim- 1. In abutton-drilling machine the combination of stationary drills, aclutch-plate for holding the button-blanks, means to intermittently rotate the clutch-plate, and means to intermittently and at variable speeds elevate the same to feed the blanks to the drills, for the purposes set forth.

2. In a button-drilling machine the co mbination of stationary drills, means to adjust the drills radially relative to the center of the button-blanks, a clutch-plate for holding the button-blanks, means to intermittently hold and rotate the clutch-plate, and means to intermittently and at variable speeds elevate 'the same to feed the blanks to the drills, for

the purposes set forth.

3. In a button-drilling machine the combination of rotatable drills, a rotating clutchplate, and means to intermittently cause the clutch-plate to approach the drills bya variable movement, for the purposes set forth.

4:- In a button-drilling machine the combination of rotatable drills, a clutch-plate for the button-blanks, means to cause the clutchplate to approach the drills at variable speed, and means to adjust the initial position of the clutch-plate relative to the drills, for the purposes set forth.

5. In a button-drilling machine the combination of a clutch-plate, a pulley for rotating it, a continuously-running belt engaging with said pulley, a ratchet and pawl for locking said plate, and means for intermittently tripping said pawl, for the purposes set forth.

6. In a button-drilling machine the combination of a clutch-plate, apulley for rotating it, a oontinuously-running belt engaging with said pulley, a ratchet and pawl for locking said plate, means for intermittently tripping said pawl, means for intermittently elevating said clutch-plate, and devices for vertically adjusting the initial or starting point of said clutch-plate, for the purposes set forth.

'7. In a button-drilling machine the combination of means for holding the buttons and alternately lifting them against a series of stationary drills, and means to adjust the initial or starting point of said button-holding devices, for the purposes set forth.

8. In a button-drilling machine the combination of a shaft for giving a reciprocating movement to the button-holding plate, an eccentric pin 01' crank on the shaft, an eccentric sleeve upon said pin, and means to adjust the sleeve relative to the pin, for the purposes set forth.

Signed at Amsterdam, in the county of Montgomery and State of New York, this 28th day of February, A. D. 1899.

FRANK M. JOSLIN.

\Vitnesses:

R. SIMON BLOOD, CHAS. W. CLARK.