US716144A - Embossing-press. - Google Patents

Description

No. 7|6,l44. Patented Dec. I6, 1902.

A.. TELLscHuw.l Emsussms Pness.

(Appliqeon med Mm. 17, 1902.)

(no Model.) 4 sheets-sheet l.

'Q "1 umm Q. EE 5g! :1 i5 oo sa N lullen I 5% i '//l/ Tm; Norms warms no PHoTuLlmu. wAsmNGToN. n.1:

No. 7|6.l44. Pa'tented Dec. I6, |9021. A. TELLSCHW.

EMBOSSING PRESS. (Applition med mr. 17, 1902.)

(No Model.) 4 Sheets-Sheet 2.

No. 7|6,|44.' Patented nec. la, |902i A. TELLscHow.

EMBOSS'NG PRESS.

(Application led Mar. 17, 1902.) (No Model.)

4 Sheets-Sheet 3.

No. 7'|6,|44. Patented Dec. 16,1902. A. TELLscHuw.

` gAppIication lgd Mar, 17, 1902.) (No Model.) 4 Sheets-'Sheet 4.

INNTD wr-7%? Tu: Nonms PETERS co. PHo1oL|THo,.wAsmNnToN, D. c.

. tion is largely conventional.` It is believed,

vof color-embossing envelope.

\ mounted the vertical press-spindle 3, adapted NVITED STATES PATENT @Error-1.

ADOLF TELLSGHOW, OF BERLIN, GERMANY, ASSIGNOR TO GEBR. TELL- SCHOW, GESELLSCHAFT MIT BESCHRNKTER HAFTUNG, OE BERLIN,

GERMANY. i

SPECIFICATIONforming part of Letters Patent No. 716,144, dated December 16, 1902.

Application filed March 1 7, 1902.

To all whom it may concern:

Be it known that I, ADOLE' TELLsoHow, manufacturer, a subjectof the German Emperor, residing at 27 Grnauerstrasse, Berlin, Germany, have invented cert-ain new and useful Improvements in Embossing-Presses; and I do hereby 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 a machine for color-embossing envelops, prospectuses, and the like. i

The machine is so designed that if the gripper for lifting the separate sheets of paper or the like from the pile should for any reason fail to act and supply a sheet under the die all the operative members of the machine for embossing and supplying the die with colorl will be automatically thrown out'of gear.

In order that the invention maybe readily understood and carried into effect, I will describe thesame with reference to the accompanying drawings, in which is shown a convenient constructional form of machine embodying my invention and which is capable As my inventionmay be employed in con-` nection with various forms of printing or embossing machines, I have in the accompanying drawings illustrated only the important parts of such a machine, and such illustrahowever, that the drawings will illustrate the manner of applying my invention to any suitable printing or embossing machine and that a detailed illustration of such a machine is unnecessary.

Figure l is a front elevation of the machine, partly in section. Fig. 2 is a side elevation. Fig. 3 is'a plan, and Figs. 4, 5, 6, and7 showdetails. Fig. 8 is a front elevation of a complete machine embodying my improvements. y

In the middle of the table 1 of the machine isisituated the press-head 2, in which is to be rotated through the intervention of an adjacently-placed vertical driving-shaft 4, in

Serial No. 98,619. (No model.)

conjunction with a toothed segment 5 and pinion 6, in such a manner as to move the upper die downward. The papers-in this case unfolded envelops--are piled at the left of the machine at 8, and a suction device 9, of known construction, lifts the upper envelop a little,lso as to enable a gripper to pull such envelop off the pile and carry it over the table 1 to the press-bead 2, Where it strikes against stops and remains there whilethe descending die 7 eects the operation of embossing. This gripper, which may be of any suitable construction and is conventionally illustrated at in Fig. 8 of the drawings, moves from the right-hand side of the machine in a suitable guide beneath the press-head 2 toward the left, whereupon it grips the uppermost envelop and withdraws the same at its back stroke for the purpose previously stated. The slot 10 at the front side of the machine-table 1, (Fig. 3,) indicates the path of said gripper. Above the pile of blank envelops is disposed a horizontal shaft 1l, (Figs. 1 and 3.) This shaft carries two depending small levers 12, which reach down into the plane of the pile of envelops in such a manner as to rest against the inclined sides thereof, (Fig. 3.) If now the uppermost envelop is lifted by the gripper and dragged over the machine-table in the direction indicated by the arrow, the two inclined side edges of the cover will slide along the two levers l2 and lift the same, so imparting a slight angular motion to the shaft 11 each time after the gripper has correctly picked up the uppermost envelop and carried it to the presshead, whereupon the next action is as follows: In the lower part of the press-head 2 is mounted a horizontal shaft 13, which projects from both sides of the head 2 and is fitted with a lever at each end. To the end of the shaftf13 nearest to the pile of envelops is fixed a broad fiat lever 14E, which hangs down vertically and has a hole 1.5, (Figs. 1, 3, and 7.) At the top of this lever 14 is' mounted at 16 a second two-armed lever, the lower leverarm 18 of which is provided at its lower end with a weight 17, which when this leverrin consequence of its own weight gravitates to a vertical position occupies a position just in IOO front of the hole 15 in the lever 14, so that the said hole 15 is thereby covered, (Figs. 1 and 7.) The upper lever-arm 19 of the aforesaid pendulum-lever points vertically upward and is connected by means of a thin wire rod 20 to a lever 21, fast upon shaft 11. If now the uppermost envelop is picked up from the pile by the gripper, so that said envelop moves the two levers 12, and thereby also the shaft 11, the lever 21 will also be caused to move, and thus pull by means of the rod 20 the lever-arm 19 from its vertical position. This motion is indicated in dotted lines in Fig. 1. The lever 21 has thereby performed an angular motion toward the left and has also moved the lever-arm 19 toward the left, so that the lower arm 18 is moved toward the right, and the weight 17 thereby uncovers the hole 15 in the lower end of the lever 14. The uncoving of this opening 15 has the following purpose: As will be seen from Fig. 3, there is mounted in the frame of the machine and to the rear'of the press-head 2 ashaft 22, which by means of an eccentric, a crank-disk, or a similar mechanical device and through the intervention of a push-bar 23 imparts reciprocating motion to a bar 25, adapted to slide in a sleeve 24. This bar 25 is disposed within its sleeve sidewise of the press-head 2 in such a manner and its travel is so regulated that at each stroke of the eccentric it is caused to enter the plane of the depending lever 14 in front of it. When the previously-described oscillation of the lever-arm 19 toward the left and that of the lever 18 toward the right takes place, the bar 25 moves forward and can freely pass through the hole 15 in the lever 14 and is equally free to withdraw. This hole 15 is, as before described, uncovered when the gripper has properly picked up the top envelop from the pile. Should, however, the gripper for any reason fail to pick up the envelop, the shaft 11 will remain stationary, and thus the lever 21 does not move the lever 19, and the hole 15 inthe lever 14 remains closed. As the shaft 22, and consequently also the push-rod 23, operate independently of the motions of the aforementioned lever, the rod 25 still performs its forward motion. When this rod 25 thus moves forward into the plane of the lever 14, it will be prevented from passing, as before, freely through the hole l5 and only strikes against the weighted disk 17, covering the said hole, and thus produces an oscillation of the lever 14 in the direction toward the front of the machine, as is indicated by dotted lines in Fig. 7. As before stated, the other end of the shaft 13, mounted in the press-head, is also fitted with a downwardly-depending lever 26. This lever serves to utilize the motion of the shaft 13, produced as before described, for disengaging the press-spindle.

To the rear of the press-head 2 is mounted a second shaft 27, arranged horizontally in the frame of the machine and parallel with the shaft 22 and fitted with a long at lever 28, (Figs. 2 and 3.) The said lever 28 is at its outer end broadened to a plate which is provided with a hole 29, similar to that in the aforesaid lever 14, (Fig. 5.) The shaft 27 is driven by the main shaft 22 through the intervention of an eccentric or the like in such a manner that the lever 28 is caused to perform a slight oscillation from its horizontal position upwardly, as indicated in Fig.2.

Upon the flat perforated end of the lever 28 is mounted a two-armed lever fulcrumed at 30, the arm 31 of which is formed with a disk-shaped end 32, while the other lever-arm 33 is proportionately short. The entire lever 28, as previously described, is so mounted in the machine-frame-z'- e., fixed upon the shaft 27-as to cause the eXtreme edge of the outer plate to be near the press-head 2. The twoarmed lever 31 33 is so mounted upon the lever 28 as to cause its short lever-arm 33 to rest against the lever 26, depending from shaft 13, as aforesaid, and as shown most clearly in Figs. 2 and 5. If the lever 26, in consequence of the rotary movement of the shaft 13, moves into the position shown in dotted lines in Fig. 2, it will slide the short lever-arm 33 in front of it, so that in this manner also the other lever-arm 31 is displaced. As seen from Fig. 5, the two-armed lever 31 33 when in its normal position is so situated that the opening 29 of lever 28 is not covered by the disk'32. If, however, the two-armed lever 31 33 is in consequence of the motion of lever 26 moved into the position shown in dotted lines, the disk 32 covers the hole 29 in the lever 2 8.

Above the end of lever 28, which carries the two-armed lever 31 33, is mounted a vertical rod or plunger 34 in a bracket 35, fixed tothe machine-frame. As previously stated, the lever 28 makes a slight upward oscillation and takes at every stroke the dotted position, Fig. 2. During this movement the hole 29 receives the lower end of the rod or plunger 34, so that the position of this latter remains unaltered. If, however, the hole 29 is covered by the disk 32 at the end of the lever-arm 3l, (which occurs when the gripper has failed to pick up an envelop from the pile as naturally,) the hole 29 cannot permit the passage of the rod 34, which latter is, on the contrary,opposed by an effective surface, and the lever 28 at its up motion lifts the bar 34 in its guides for a definite distance.

Sidewise of the bracket 35 is mounted the driving-shaft 4for the spindle 3, said shaft receiving its motion from a curved arm 36, connected by a bolt 37 to the push-rod 38, so that the toothed segment 5 operates the pinion 6, and thereby also the press-die. The push-rod 38, (Fig. 2,) is moved, as indicated by kthe arrows, through the swinging action of a lever 39. The bolt 37, which transmits the motion of the push-rod 38 onto the shaft 4, is not fitted in the usual manner in an eye at the front end of the push-rod 38. The latter is formed at its fore end with a long slotted slide- IOO IIO

guide. In this slide-guide is fitted a block 40,

in which is mounted the bolt 37. "The otherl ing with its front end against the block 40, so

that it cannot move in the said slide-guide.

Therefore in this` manner the reciprocatory movement of the push rod 38 operates the;

shaft 4, and thereby also the press spindle, in the normal manner. 41 is lifted and the space previously occupied by it left clear, the push-rod 38 willno longer be able to move the block` 40 and bolt 37. On the contrary, the block 40 remains stationary, so that the shaft 4 will not be moved,

and the press-spindle 3 also becomes stationary, This disengagement of the pawl 41 occurs when the gripper has failed to pick up, remove, and deposit an envelop beneath the die, so that the downstroke of the pressl spindle 3 is Vnot required, and the latter is then disengaged in the following` manner: The bolt 42, whichpcarries the pawl 41 and which is mounted at the rear end of the slidepath of the push-bar 38, projects at one side beyond the push-bar, and to such end is secured a lever-arm 43. This lever-arm is bent downward and rests uponthe roll 44 at the upper end of the bar 34, upon which latterit moves along during the to-and-fro motion of the push-bar 38. If now by the action of the two-armed lever 3l 33, in conjunction with the previously-d escribed operative parts,

lthe bar 34`is pushed upward, the lever-arm 43 moves also upward, and the pawl 4l clears the path` of the push bar 38. The consequence of this motion is that the push -bar 38 is reciprocated without taking along with it the bolt 37. ary and no impression. is produced.' When after a working stroke the aforesaid disengagement'takes place, it` may in some cases `happen that the toothed segmenty moves slightlyl back, so that in this manner the stationary position of the press-spindle may become inaccurate, and in order to prevent this the following arrangement is provided: Beneath the arm 36 upon shaft 4 is fixed a leverarm 45, Figs. 1, 3, and 4. Further, upon the bar 34 is iixed a laterally-proj ecting horizontal lever 46, upon which a hook 47, pivoted at 48,'

loosely rests. With the normal position of the bar 34-t'. e., when same is not elevatedn the lever-arm 45 swings freely over the pawl 47, whereas when said bar 34 is elevated the lever 46 also rises with it and lifts the hook 47, as shown in dotted lines in Fig. 1. This hook 47 is thus placed in the path 'of the lever 45, which at its next movement strikes against said hook 47 and is thus stopped in its path. Thereby the shaft 4and the toothed segment 5 are suddenly stopped and held stationary, so that the backing and the down motion of the press-die is rendered impossible. As stated hereinbefore, not only is the press-spindle disengaged when the gripper If, however, the pawl` The shaft 4 remains station` l fore the arrival of the envelop to be embossed by the die caused to move out of the head 2, and its path is so disposed as to enable it to slide lightly with its rollers over the lower die 48a, andthus supply the latter with the requisite color. The color-truck receives the color upon its rollers in another end position from a color-box provided at the back of the press-standard similarly as in a platen--press and which in the figures is shown only in outline. At right angles to and beneath the path of the color-truck 49 is mounted the previously-mentioned shaft 13. This shaft is in the interior of the standard fitted with a small tappet 52, Fig. l, upon which one of the sides of the color-truck reposes. When the shaft 13 moves,V while the gripper fails to pick up an envelop, the tongue 52 swings a little in the upward direction, whereby the colortruck 49, arriving shortly afterward from the rear, is consequently also slightly lifted, as indicated by dotted lines in Fig. 6. The color-rollers during the said forward movement of the truck do not, therefore, come into contact with the lower die 48a, so that it receives no color when the envelop fails to arrive and the upper press-die is stopped from descending. If the previously described color mechanism were allowed to act so as to cause the color-truck 49 to furnish the die 48iL with color whether the gripper supplied the envelop or not, it will be clear that the die would receive too much colpr, and thus not produce a clear and sharp impression. By means of the invention hereinbefore described an embossing-pressis caused to produce a very clean impression. and Works ina Very economical manner and without any waste. By preventing all the operative parts upon which a really good impression depends from performing any unnecessary` movement their wear and tear is reduced to a minimum and the life of the machine is increased.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to belperformed, I declare that what I claim isv 1. In a machine for the purpose described, the combination with a pair of dies,imeans for reciprocating one of the dies toward and from the other, means for applying ink to the stationary die, and means for successively feeding articles from a pile to a position be- IIO IZO

tween said dies, of means for adjusting the i ink-applying devices so that the stationary die will not be inked whenever the feeding devices fail to remove an article from the pile.

2. Ina machine for the purpose described, the combination witha stationary die, a mov able die, means for reciprocating the movable die toward and from the stationary die, means for applying ink to the stationary die, and means for successively feeding articles from a pile to a position between said dies, of a rock-shaft adapted to disconnect the movable die from its actuating device and to adjust the inking devices away from the stationary die, and means for rocking said shaft whenever the feeding devices fail to withdraw an article from the pile.

3. In a machine for the purpose described, the combination with a reciprocating plunger, power devices for actuating said plunger, and means for successively feeding articles from a pile to a position in line with said plunger, of a rock -shaft adapted to disconnect the plunger and power devices, means for rocking said shaft, and means, arranged in the path of and adapted to be operated by articles fed to the machine, for preventing such actuation of the rock-shaft, whereby the plunger and power device will be disconnected whenever the feeding devices fail to properly remove an article from the pile.

4. In a machine for the purpose described, the combination with a reciprocating plunger, power devices for actuating said plunger, and means for successively feeding articles from a pile to a position in line with said plunger, of a rock-shaft adapted to disconnect the plunger and power devices, an apertured arm projecting from said rock-shaft, a reciprocating push-bar arranged in alinement with the aperture in said arm, a movable cover normally closing said aperture, and means for adjusting said cover to expose said aperture when an article on the pile is properly engaged by the feeding devices.

l 5. In a machine for the purpose described, the combination with a'reciprocating plunger,

power devices for actuating said plunger, and means for successively feeding articles from a pile to a position in line with said plunger, of a rock-shaft adapted to disconnect the plunger and power devices, an apertured arm projecting from said shaft, a reciprocating push bar arranged in alinement with the aperture in said arm, a movable cover normally closing said aperture, a supplemental rock-shaft having arms extending into position to be engaged by an article removed from the pile by the feeding devices, and connections between said supplemental rockshaft and the aforesaid cover, whereby the latter will be adjusted to expose the opening in the arm on the main rock-shaft whenever an article on the pile is withdrawn from the pile by the feeding devices.

6. In a machine for the purpose described, the combination of a reciprocating plunger, means for successively feeding articles from a pile to a position beneath said plunger, a power-shaft, connections between said shaft and plunger, an apertured and vibrating 1ever, an adjustable rod mounted between said lever, in alinement with the aperture therein, and a pivoted member of the connections between the power-shaft and plunger, a slide adapted to close said aperture in the vibrating lever, means for normally holding said slide away from said aperture, and means for adjusting said slide across said opening whenever the feeding devices fail to remove an article from the pile, whereby the plunger and power devices will be disconnected.

In witness whereof I have hereunto set'my hand in presence of two witnesses.

ADOLF TELLSCHOVV.`

Witnesses:

WOLDEMAR HAUPT, HENRY HAsPER.

Images