US594751A - Writing- pens - Google Patents

Description

(No Model.) 4 Sheets-Sheet '1.

F. NEVOIGT. mummsv FOR AUTOMATICALLY MANUFACTURING WRITING PENS.

No. 594,751. 5 Patented Nov. 30,1897.

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P. NEVOIGT. MACHINE FOR AUTOMATICALLY MANUFACTURING WRITING PENS.

No. 594,751. Patented Nov. 30,1897.

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. P. NEVOIGT. MACHINE FOR AUTOMATICALLY MANUFACTURING WRITING PENS.

No. 594,751. Patented Nov. 30,1897. 4 W;

wim cssay KA 0M UNITED STATES PATENT OFFICE.

FRIEDRICH NEVOIGT, OF REICHENBRAND, GERMANY.

MACHIN E FOR AUTOMATICALLY MANUFACTURING WRlTlNG-PENS.

SPECIFICATION forming part of Letters Patent No. 594,751, dated November 30, 1897.

Application filed October 8,1895- Serial No. 565,069. (No model.) Patented in France May 13, 1895, No. 247,377, and in England May 20, 1895, No. 9,931.

To all whom it may concern:

Be it known that I, FRIEDRICH NEVOIGT, a subject of the King of Saxony, residing at Reichenbrand, near Chemnitz, Saxony, Germany, have invented certain new and useful Improvements in Machines for the Automatic Manufacture of lVriting-"Pens, (for which I have received Letters Patent in France, No.v

247,377, dated May 13, 1895, and in England, No.9,931, dated May 20,1895;) and Ido hereby declare that the following is 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 is more especially intended for the automatic production of writing-pens, except the splitting and tempering of. the same; but by a substitution of dies other articles may be punched and stamped from sheet metal, as will hereinafter more fully appear.

The peculiar construction of my present invention permits of a double quantity of work being accomplished by one machine and insures the utmost accuracy in punching the metal and in conveying and feeding the punched blanks to the stamping or forming presses as well as in discharging the same therefrom.

My invention is clearly illustrated in the accompanying drawings, whereon Figure 1 is a front elevation of the machine, with the exception of the lower part of its supporting-frame. Figs. 2 to 5, inclusive, illustrate in progressive steps the manner in which the punched blanks are delivered to the chutes leading to the stamping-presses. Figs. 6 and 7 include side elevations, partly in section, and plans of devices for feeding tothe dies of the punch the material to be operated upon. Figs. 8 and 9 are vertical Views, partly in section, of the punch dies and holders with devices for expelling the punched blanks. Fig. 10 is a side view of a part of the feed mechanism and chute. Fig. 11 is a similar view with the operative parts in different positions. Fig. 12 is a front View of the feed mechanism. Fig. 13 is a side view of the pen-discharging mechanism, and Fig. 14 a vertical longitudinal section of the same. Fig. 15 shows in elevation a portion of a machine-frame and operating on disks of sheet metal. Figs. 16 to 18,'inclusive, are side views of the feeding-chute with devices for regulating the feed of circular blanks or disks through the same.

Referring to Fig. 1, the frame of the machine is shaped like an inverted V, with a flat top, on which is situated the punching-machine, composed of two upright side frames at 0t.v The inner edges of these frames form guideways for the cross-head of the punchplunger S, which receives motion from the connecting-rod a of an eccentric or crankstrap a on the driving-shaft V, which operates in journal-boxes a at the upper ends of the aforesaid side frames at a and in the outer boxes a which project upward from the frames of the stamping-presses. The stamping-presses are arranged on the inclined portions of the inverted-V frame, as shown at P P P and are operated from their top shaft 10 through eccentrics or crank-straps a and connecting-rods a motion being imparted to the shaft 10 from the driving-shaft W through the bevel-wheels W and W cutting-dies S S one in front of the other, so that two blanks may be cut at each stroke. Each cutting-die S S has a counter-die S located in the frame below the same, through which the cut blank (see Figs. 2, 3, 4, and 5) pass to the upper ends of their respective guide-rods 0 0 the said guide-rods being adapted to operate vertically through slots P, formed in the upper ends of the inclined chutes 6 6 to receive the cut blanks and deliver the same, with points downward, into their respective chutes and thereby conveyed through feeding devices, hereinafter described, to be successively acted upon by the stamping-presses P, P and P The guiderods 0 0 project upward through guide-open: ings in the machine-frame from a frame R, which is suspended within the machine-frame by coil-springs F F, whereby the guide-rods are kept in their uppermost positions, except atsuch times as being relieved of the cut blanks, when they are pressed downward by the cam K, the shaft 10 of which receives motion from the driving-shaft W through the belt to;

driving-shaft with two stamping-presses for 7 The punch-plunger S is provided with two The upper ends of the guide-rods c c are each formed with two prongs of equal height, but of different finish, the prong nearest the central line of the machine being flat, while that which is nearest the presses has its upper surface made with an outward incline to facilitate the downward sliding of the cut blanks, the upper ends of which alone rest on the chute until the guide-rods have been depressed below the same.

The sheet metal out of which the blanks are cut is fed to the punch from the front of the machine, as indicated at B in Figs. 6 and 7, and is of sufficient width to permit of a double row of blanks being cut from 'the same, two blanks being simultaneously cut at each stroke of the punch.

To prevent waste of material, as well as to guard against the dies operating in a previous cut, I provide the punching-machine with a feeding device, with which the utmost accuracy is insured. This device consists of a plate I), having side journals Z Z, by which it is supported in a suitable frame, as shown in Fig. 1. opening for the reception of a bolt d, one end of which is screw-threaded and provided with jam-nuts 'm and the other end with a frame or strap 1), which extends around three sides of the punch. The rear portion of the bolthole in plate I) is of greater diameter than the bolt d, in order to receive a coil-spring (P, which is held in a slightly-compressed state by a pin d which is secured in the bolt cl, the end of the said pin being adapted to operate in elongated slots in the plate I) to limit the endwise movement of said bolt. The outer part of frame I) is provided with a downward projection 01 for successively engaging the perforations made in the plate as it passes through the punching machine, and thus holds the said plate until necessary for further movement of the same. The projection 12 is raised clear of the plate during the actual punching process by reason of the angle-plate d, connected with the punch-plunger S, depressing the spring portion of the plate I). Meantime the hook n of the curved lever H, pivoted at S (see Figs; 6 and 7) to the punchplunger S, engages one of the perforations in the plate and, through the action of the spring t, draws the same forward the moment the punch-plunger S depresses the spring portion of the plate I), and thus its projection '27, drops the plate, and as the said plate is moving downward it engages the last-made perforation. Further movement of the machine draws the projection 02 forward in opposition to the spring d to the extent permitted by the regulating jam-nuts m.

In order to assist the spring t in its resisting action to the spring d and thus insure a proper feed motion, the punch-plunger S is provided with an outward projection R, in which is a beveled slot for the reception of the upwardly-projecting end of the lever H, likewise beveled so that the bevel of the pro- The plate I) is provided with an jection when brought in contact with that end of the lever will press the same inward and thus cause the hook 172 at its lower end to move outward as required. The pivot S of the curved lever H has a spring F connected therewith in such manner as to press the lower end of the said lever inward when its upper end is not engaged by the projection R, and thus the hook 713 is made to engage another perforation in the plate for further movement of the same.

The dies S S are each provided with a pin S", which is held retracted therein by a light spring S (See Figs. 8 and 9.) These pins are adapted to be driven downward to free the punched blanks from the plate and matrix or lower half of the die through the action of a piston, the rod of which is partially inclosed within a spring V, that is confined between the piston-head g and a guide-bar i.

A follower-plate g, secured to the upper end q}? the piston-rod, is provided with an outward projection 41', which is adapted to be engaged when in its uppermost position by a springactuated pin it and thereby held until the die of the punch is about leaving the cut blank. The pin h is then withdrawn through the action of the lever h, which is pivoted at V to a plate V connected with the frame of the apparatus, when the piston g is driven outward by the spring V.

The chutes 6 9 by which the blanks are conveyed from the punching-machine to the stamping -presses, are each provided with mechanism, as hereinafter described, for feeding the blanks one by one to the different presses in the line of their travel. The feed mechanism of each chute is operated from a cam N on the shaft w through a rocking lever H and shaft 1, the latter provided with tappets p p, which in the sliding movement of the shaft 1 alternately move the levers Z 0 and the blocks 071, connected with the pivoted end of each lever, as shown in Figs. 10, 11, and 13.

Pivoted, as at w m .90 00*, at each side of the chutes and blocks on are levers Z Z, which are normally held in inward positions by springs 00', as shown in Figs. 10, 11, and 13, or the said spring maybe constructed and applied as shown at fin Fig. 12. The levers Z Z are thrust apart inopposition to the aforesaid springs by the movement of the levers Z and connecting-blocks m. Each lever Z is provided near its movable end with an inwardly-projecting stop 1'' i 1' 2', adjustable by set-screw 2' or otherwise, in order that when the levers are at rest the said stops shall project inward to a suflicient extent to pre vent the passage of blanks between each pair thereof. The reciprocating movement of the shaft 0' causes the tappets p 19 thereon to alternately thrust aside the adjacent levers 0 5', whereby the leversZ Z are operated so that their stops z" 71 6 shall alternately close and open the passage-way in the chute first above and then below each stamping-die.

Thus the blanks are successively held while lug-machines.

The eye of the pen is produced by the lower stamping-press, to which the pen-blank may be guided by an arm 0", connected with the reciprocating shaft r, the said arm being provided with a hinged section having a guiding end, as shown at N in Figs. 10, 11, and 12, and the said press may be provided with a perforated plate, through which the die may operate and beneath which the pen-blank shall rest during the stamping process.

To provide for the freeing of the blanks, and thereby insure an onward movement of the same after each impression, the matrix of each press is provided with a perforation to receive a pin A, supported by a spring F (see Fig. 14,) the free end of which is adapted to be engaged by a spring-catch C when in its lowest position, as during the stamping,

and to be released from saidcatch by the rod B striking the catch 0 the moment the stamping-die is raised. The spring is automatically released from the catch by a rod 13 connecting the same with the pivoted block.

m, which, as before stated, is operated by the tappets of the sliding bar r striking the lever 0 thereof.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a punching and stamping machine combined, a punch having two dies, one in the rear of the other, a series of stampingpresses arranged below the punching-ma-v chine, and outwardly inclined therefrom, as described, with a chute from each punchingdie to each series of presses, the upper ends of the chutes provided with openings, and vertically-operating guides, having forked upper ends adapted to operate in the chuteopenings, to receive the punched blanks and deliver same to the chutes and presses, substantially as set forth.

2. In a combined punching-machine and stamping-press a chute for conveying the blanks from the punch to the press, said chute having an openingin the upper end thereof, and guides adapted to operate in said opening, the upper end of the guides composed of two parts, the part nearest the press having its upper surface inclined toward the same, and its other part made horizontal, substantially as and for the purpose set forth.

3. In combination with a punching-machine having guides adapted to operate under the dies thereof, a spring-supported frame conbeing operated upon by the different stamp-- nected with the guides and a shaft provided -with an eccentric whereby the guides and frame are operated in opposition to the springs, substantially as and for the purpose set forth.

4. In a punching-machine the combination of a perforated die, a pin adapted to operate in said perforation, a spring for supporting the pin in its upper position, aspring-actu with the lever-pivot and lever, an outwardly- :beveled upper end to the lever, and an outward projection from the plunger, said proection provided with a beveled slot within which the upper end of the lever is adapted to operate, substantially as set forth.

6. In a punching-machine the combination of a plunger and an angle-plate connected therewith, a vibrating frame, and a springactuated bolt fitted therein, the bolt provided on one end with jam-nuts and at its other end with a three-sided frame, and a downward projection at the outer side of said frame for successively engaging the perforation in a plate, substantially as set forth.

7. In combination with a vertical punchingmachine and stamping-presses outwardly inclined therefrom, an inclined chute and feed mechanism connected therewith, the said mechanism consisting of levers pivotally arranged at opposite sides of the chute, springs for pressing the levers inward, and a block pivoted between each pair of levers, the levers provided with adjustable inwardly-projecting stops, a lever projecting from each pivoted block and a sliding rod with tappets thereon for action against the block-levers, substantially as specified.

8. In a stamping-press, a matrix having a perforated bottom, a pin to operate therein, and a spring connected with the pin, in com bination with a spring-actuated catch for engaging fhe spring and a bar connected with a pivoted block and lever to release said catch, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

FRIEDRICH NEVOIGT.

Witnesses:

J. F. MONAGHAN, OTTO THEUERKORN.

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