US731091A - Automatic feed-stopping mechanism for embossing-rolls. - Google Patents

Description

PATENTBD JUNE 16, 1903. G. R. BAKER.

AUTOMATIC FEED STOPPING MECHANISM FOR EMBOSSING ROLLS. IPPLIflA-TIQN FILED FEB. 14, 1903.

NO MODEL.

: 7 A Tran vans.

UNITED STATES Patented June 16, 1903.

PATENT OFFICE.

AUTOMATIC FEED-STOPPING MECHANISM, FOR EMBOSSlNG-ROLLS.

SPECIFICATION forming part of Letters Patent No. 731,091, dated June 16, 1903. Application filed February 14,1903. Serial No. 148,426. (No model.)

like; and it consists of certain novel features of combination and construction of parts, the preferred form whereof will be hereinafter clearly set forth,and pointed outin the claims.

The prime object of my invention is to pro- I vide simple though reliably efficient mechanism of the character specified adapted to instantly stop the paper-feeding mechanism, whereby the further introductionof paper, leather,or other material to be introduced into the machine will be automatically checked.

A further object, among others,is to provide devices cooperating with the feeding-rolls designed for introducing material into an embossing or calendering machine or the like adapted to instantly sever the material being introduced, and thereby prevent the part of the material which may carry an uneven surface or particle of foreign matter thereon from entering the embossing-rollers, and thereby causing injury thereto.

Afurther object, among others,is to provide suitable controlling means cooperating with the feeding-rollers which when properly connected with the source of power will shift the belting or operative clutch mechanism,thereby resulting in wholly cutting off the driving power from the machine and instantly stopping further movement thereof.

Other objects and advantages will be hereinafter made clearly apparent, reference bein g had to the accompanying drawings, which are made a part of this application, and in which Figure 1 shows a side elevation of my invention complete as attached to an ordinary embossing-machine. Fig. 2 is a detail showing view showing a transverse section of the knife and cutter-bar with which the knife cooperates to sever the paper or other material.

Fig. 5 is a detail perspective view showing means for limiting the movement of the arm controlling the knife, while Fig. 6shows how the end of the knife is pivotally connected with the cutter-bar with which it cooperates.

In order to conveniently refer to the various details of my invention and elements disposed in cooperation therewith, numerals will be employed, the same numeral applying to a similar part throughout the several views.

While 1 shall in the present application describe my invention as being applicable for use in connection with an ordinary embossing-machine,it will be understood that it may be readily adapted for use upon calenderingmachines, printing-presses, and, in fact, upon any variety of analogous machines wherein it is desirable to instantly stop further introduction of paper or other material into the embossing or printing rollers, as when the paper may carrysome foreign substance upon its surface or where the meeting ends of two sections of the paper or other material are overlapped and glued together, as will be readily understood.

Referring to the numerals on the drawings, 1 indicates the frame-section of an ordinary embossing-machine, provided, as is common, witha pair of embossing-rollers,asindioated by the numerals 2 and 3, the latter being shown by dotted lines in Fig. 1. As is common in this class of machines, a suitable means for adjusting the relative approximation of the rollers 2 and 3 is provided by means of the screws 4 or the equivalent thereof and also intermeshingdriving- gears 5 and 6, the former being upon the driving-shaft, one end of which carries the pulley-wheel or equivalent 7, adapted to be connected with the source of power.

Upon an extension 8 of the frame of the machine I mount the guiding or feeding roller 9, which is constructed as is common or in any preferred way and sustained upon suitable journals 10, which are provided with the bearings 11, having depending stems -12, as clearly shown in Fig. 2. The stems 12, which are preferably formed integral with the bearings 11, are provided with suitable seats in the extension 8 of the frame and are designed to be adjustably secured in their seats in any suitable manner, as by means of the set-screw 13. It will be understood that the lower end of the seats provided for the stems 12 may be closed or not extended entirely through the frame section 8, in which case a set-screw maybe introduced into a threaded aperture, so that the set-screwwill contact directly with the lower end of the stem 12, and thereby enable the adjustment of the stem to be easily efiected.

The paper or other material is mounted upon the storage-roller 14, which is carried by suitable brackets or extensions 15, carried by a contiguous part of the main frame 1 or other desired point In Fig. 1 it will be seen that the material, as indicated by the numeral 16, is passed over the roller 9 and thence under'the guiding-bar 17 and thence directly between the embossing-rollers 2 and 3 and over the guiding-roller 18 to the storage-roller or other point. (Not shown.)

Itwill be understood that the guiding-roller 9 is concentrically mounted upon its journals or stub-shafts, and designed to cotiperate with said roller is the clamping-roller 19, which is eccentrically mounted upon suitable gudgeons or stub-shafts 20, which are provided with'suitable bearings 21 in such a manner that the larger portion or cam-face of the roller 19 will be disposed above its axis. The adjustment of the cotiperating or clamping roller"19, thus eccentrically mounted in its operative position, is of such character that when the larger side of said roller is disposed upward the lowerorsmaller side thereof will be in close approximation to the roller 9, but separated a sufficient distance to admit of a normal thickness, of the paper or other material to be introduced between the two rollers without frictionally engaging the upper roller, and it therefore follows that when any inequality of thickness of the paper or other material, as an overlapping joint in the paper oira lumpof foreign substance, enters between the two rollers such increase of thickness will induce such a frictional contact with the opposing face of the roller 19 as to cause the same to turn upon its journals, and designed to utilize the initial turning thus set up I rigidly connect to the shaft 20 the vertically-disposed arm or lever 22, provided at its upper end withacounterpoise or weight 23,adjustably secured to the lever in any preferred way, as by the set-screw 24:. The lever 22 is held normally elevated by meaus'of the bracket 25, having an outwardly-directed arm or branch 26, against the extreme end of which said lever is designed to rest, and

it is therefore obvious by reference to Figs. 1 and 2 that when the slightest movement of the eccentrically-mounted roller 19 is ind need by inequalities in the material, as hereinbefore stated, the controlling-lever 22 and the weight carried thereby will be instantly thrown out of their position of rest against the arm 26 and insure that the clamping-roller .bar 17 will be all that is required to sever the paper, though I am enabled to utilize the partial turning of the roller 19 induced, as hereinbefore described, fora variety of purposes-as, for instance, in operating a knife so located as to cleanly sever the paper instead of tearing it asunder, as would be the case in the absence of such a knife. In the present instance, therefore, I have provided a longitudinally-disposed slot 27in the rod or bar 17, said slot being adapted to receive the cutting edge of the knife 28, one end of which is pivotally connected to the depending ear 29, carried by a portionof the frame 8, as shown in Fig. 6, while the free end of said knife is pivotally connected to the link-section 30, the upper end of which is pivotally attached to the lever 31, and in order to provide only a sufficient movement for the lever 31 as maybe necessary to operate the knife and force it home Within the slot 27 I provide the construction illustrated in detail in Fig. 5, wherein it will be observed that the lever is provided with a sleeve 32, designed to loosely fit over the end of the shaft 20. In order, therefore, to compensate for the difierence in the movement of the shaft 20 as it rotates to permit the arm 22 to travel the full length of its path, I provide the end of the sleeve 32 with the notch or recess 33 and secure a pin 34: in the shaft'20 in such a way that the pinwill not contact with the end of the recess 33 until the lever 22 shall have traveled almost to the end of its course during its operation of the clampingroller 19. By a proper location of the notch and pin 33 and 34, respectively, it is obvious that any desired movement may be assured for the knife 28. It follows that the movement of the arm or lever 31 may be utilized for many other purposes independent of the actuation of the knife or cotiperating simultaneously with such actuationas, forinstance, suitable connecting devices between said arm and a clutch mechanism or other power-shiftin g device may be provided which will induce an instant stopping of the machine itself. As hereinbefore stated, however, it is thought that the cooperation of the rollers 9 and 19, which are respectively concentrically and eccentrically mounted, will be all that is required as an attachment for embossing-machines, the purpose being to prevent the introduction of any inequalities in the surface of the material from being introduced into the embossing-rollers.

While I have described the preferred construction and combination of parts deemed necessary in carrying out my invention, I wish to comprehend in this application such substantial equivalents and substitutes as may be copsidered as falling fairly within the scope of my invention.

Believing that the advantages and manner of using my invention have thus beenmade clearly apparent, further description is deemed unnecessary.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a machine of the character specified, the combination therewith, of a pair of rollers, one of which is concentrically mounted, while the other is eccentrically disposed in cooperation therewith; suitable means to adjust the relative approximation of said rollers and additional means consisting'of a substantially vertically disposed weighted lever carried by the eccentrically-mounted roller adapted 'to bring said rollers tightly together when the equilibrium of said means is disturbed whereby the material interposed between them will be securely clamped against further movement as and for the purpose set forth.

2. In an embossing-machine or the like, a guide-roller 9 concentrically and adjustably mounted in its operative position, in combination with a cooperating roller eccentrically mounted and adapted to normally lie with its smaller side in close approximation to the concentric roller; a counterpoise-lever 22 carried by the eccentric roller and means to hold said lever in a balanced vertical position whereby when any inequality in the thick ness of the material fed between said rollers is introduced the counterpoised lever will be thrown outward and thereby induce a partial rotation of the clamping-roller and force the cam-face thereof tightly against the face of the concentric roller and stop all further movement of the material as and for the purpose set forth. p r

3. In an embossing-machine or the like, a guideroller concentrically and adjustably mounted in position, in combination with an eccentrically-mounted clamping-roller and trip mechanism carried by said roller adapted to induce a partial rotation thereof when any excess of thickness is encountered by the rollers, substantially as set forth.

4. In an embossing-machine, or the like, a guide-roller concentrically and adjustably mounted in its operative position, in combination with a knife lying normally out of the path of the paper or other material; a clamping-roller eccentrically mounted in cooperation with said guide-roller and means adapted to partially rotate the clamping-roller when aninequality in the paper is encountered, whereby the cam-face of the clamping-roller will be brought tightly in contact with the feeding-roller and incidentally operate the knife to sever the paper as and for the purpose set forth.

5. As an attachment for embossingmachines or the like, a concentrically-mounted guide-roller, in combination witha clampingroller eccentrically mounted in cooperation with said guide-roller; a counterpoised lever carried by the clamping-roller; an auxiliary varm or lever 31 adapted to be actuated when the clamping-roller is turned whereby a paper-severin g device may be operated substantially as set forth.

6. In a machine of the character specified, a concentrically-mounted guide-roller and a clamping roller cooperating therewith; a weighted lever normally inert but adapted to instantly bring its force to bear upon the clamping-roller on the slightest movement thereof whereby the clamping-roller will be brought firmly to bear against the concentrically-mounted roller and suitable means to utilize the partial rotation of the clampingroller to operate a paper-severing device, substantially as specified and for the purpose set forth.

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

CHARLES R. BAKER. Witnesses:

C. S. FRYE, AUGUST PETERSON.

ICO

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