US907530A - Sheet-perforating machine. - Google Patents

Description

H. K. SANDBLL. SHEET PERFORMING MACHINE.

APPLICATION FILED NOV. 27, 1907. 907,530. Patented Dec.22, 1908.

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H. K. SANDELL.

SHEET PERPORATING MACHINE.

APPLICATION FILED Nov. 27, 1907.

907,530, Patented Dec. 22, 1908.

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SHEET PBRFURATING MACHINE.

APPLICATION 1`ILED'NOV.27, 1807.

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H. K. SANDELL. SHEET EEEEOEATING MACHINE. APPLIOATION FILED NOV. 27, 1907. 907,530, Patented Dec. v2.2, 1908.

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HENRY K. SANDELL, OF CHICAGO, ILLINOIS, ASSIGNOR TO HERBERT S. MILLS, OF CHICAGO,

' ILLINOIS.

SHEET-PERFOR-ATING MACHINE.

Specification of Letters Patent.-

Patented Dec. 22, 1908.

Application led November 27, 1907. Serial No. 404,044.

T o all whom tt may concern:

Be it lrnown that I, HENRY K. SANDELL, a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Sheet-Perforating Machines, of which the following is a specification.

'I his invention relates, more especially, to an improvement in the class of perforating machines for producing the music-sheets employed in self-playing instruments. It may, however, be used for perforating sheets for other purposes.

rThe motive power which is preferred for controlling the operation of my improved machine is electricity, and as the machine has been especially designed for erforating paper sheets for use with the e ectric selfplaying violin of .Letters Patent No. 855021, granted to me May 2S, 1907, I employ in connection with the machine for producing the perforated sheets substantially the same electrical contact mechanism to be traversed by the master-sheet and driving mechanism for the latter as are employed in the aforesaid violin-machine to produce playing of the instrument.

In the accompanying drawings, Figure 1 is a view in side elevation of the entire machine; Fig. 2, a broken plan viewT of the same, omitting the master-roll and contactanechanisms Fig. 3, an enlarged section on line A, Fig. 2; Fig. 4, a broken view of the showing of Fig. 3, but representing a punch in its perforating position, while the same is represented in its normal retracted position in the preceding figure; Fig. 5, a broken section on line B, Fig. 2, showing the punches in retracted position, and Fig. 6, a similar view showing certain of the punches depressed 3 Fig. 7, an enlarged broken section on line C, Fig. 2, showing a punch engaged and depressed by its reciprocatory operating rod actuated by an electro-magnet, and Fig. S, a similar view of the same showing the operating rod retracted and the punch in its raised position Fig. 9, a broken perspective view of a slotted plate for guiding the reciprocable punches, of which one is shown, through the medium of an adjustable iinger extending from each into a slot in the plate; Fig. 10, a broken enlarged view showing, in side elevation, one of the several similar pawl-and-ratchet actuated feed-devices for the webs of paper undergoing perforation 5 Fig. 11, a broken and partly sectional view of the same in front elevation Fig. 12, a broken section on line D, Fig. 13, of the feeding and contact mechanisms for the master-sheet; Fig. 13,

a section on line E, Fig. 12, and Fig. 14, a

diagram illustrating the generator-circuits in which the electro-magnets for depressing the punches are contained.

The generally-described operation of the electrically actuated perforating machine illustrated is as follows: A master-sheet is fed across a set of contacts, each having in circuit with it an electro-magnet, and a sheet to be perforated is fed correspondingly with the master-sheet across a row of punches. Each electromagnet has a punch-driving rod extending from its armature with its distal end working through a cam-actuated reciprocating head, each rod coinciding with a different punch 5 and the outer ends of the punches, in their normally retracted position, are below the planes of the driving ends of the rods, whereby when a perforation in the traveling master-sheet registers with a contact the latter closes a circuit containing the respective electromagnet to attract its spring-retracted armature and advance the rod on the latter through the head to cross the outer end of the respective punch and drive it by each downstroke of the head and, by the vibratory movements of the cani-actuated head, cause the punch to cut inthe traveling sheet to be perforated a perforation corresponding with that through which the circuit-closure occurred.

The salient feature of the invention is that of the driving-rods working across the outer ends of the punches to engage and drive them by the movement of the cam-actuated head.

The mechanism of the machine is sustained on a bed or table 15 extended at one end into a downwardly-inclined rack-frame 16 on the sides of which are j'ournaled in a series of bearings at suitable intervals apart a plurality of rolls (five being shown) of paper 17 to be perforated. On the left-hand side of the machine (regarded from the end of the rack-frame) an upright frame 18 rises above the table and supports the feeding and contact mechanisms 19, (Figs. 11 and 12) for a master-sheet 20fed fromaroll 21 journaled in a supplemental frame 22. The master-sheet moves across an inclined guide-board 23 having imposed upon it a weight-plate 24 to bear against the paper and keep it taut. From the board 23 the sheet passes about a contactroller 25 and between the latter and a feedroller 26, and a series of spring contact-fingers 27 are supported to engage with the contactroller through the perfor-ations in the mastersheet as they are brought, in the travel of the sheet, into registration with the contacts. The roller 26, which carries on one end a gear- Wheel 28, is journaled in hangers 29 depending from a shaft 30 journaled in the frame and carrying on one end a pinion 31 with which the gear 28 meshes, and a belt-pulley 32'. An arm 33 extends from the shaft 30 across a set-screw 34 working in a bracket 35 depending from the frame, and from the free end of the arm a spring-pressed rod 36 passes through the bracket and cooperates therewith against the arm to hold the roller 26 in frictional relation to the roller 25, the force of the frictional ressure being adjustable through the me ium of the set-screw. The shaft carrying the roller 25 is pivotally supported at one end and is releasably fastened at its opposite end by a catch-device 37 vwhich may be disengaged for releasing the shaft to permit the roller to be swung on the pivotal end of its shaft, out of the way for inserting between it and the feed-roller 26 a master-sheet.

The pulley 32 has an endless-belt connection 38 with a tapering speed-changing pulley-device 39 on one end of a shaft 40 journaled in the frame 15 and carrying on its opposite end a belt-pulley 41.

On a superstructure 42 of the frame 15, rising from about midway between the ends of the latter, is supported the electromagnetcontrolled punch-mechanism, described as follows: The side members of the superstructure are connected, midway between their ends, by a transverse bed-plate 43 containing a central longitudinal row of openings and forming a rigidly stationary guide for the punches, hereinafter described. Immediately below this bed-plate and containing a similar row of punch-openings registering with th'ose in the bed-plate, is supported the die or female punch 44 above which and spaced apart from it is supported a punch-guiding plate 45 containing a row of punch-openings, the space between this plate and the die affording a passage through which to feed across the punches the material being cut by them. Similar yokes 46, 46 rise from near opposite ends of the bed-plate and through these yokes extend the opposite ends of a horizontal reciprocating head consisting of a pair of similar parallel anglebars 47 47 secured through the ends of their horizontal web-portions to blocks 48, which are connected together at their bases by 'a punch-raising bar 49 extending, between the blocks, only along one side of the row of punches. The angle-bars 47 are lspaced' apart between their vertical web# portions, each of which contains a horizontal row of openings for the punch-driving rods hereinafter described, the openings in each bar alternating with those in the other. This reciprocating head is supported at its end-blocks 48 on a drive-shaft 50, journaled in bearings on the base of the superstructure 42, through the medium of arms 51 pivotally connected with the blocks and extending from the straps of eccentrics 52 on the ends of the shaft, whereby rotation of the latter vibrates the head vertically. Two similar and relatively large or thick punches 53, 53 pass through vertical openings in the blocks 48 forming the ends of the reciprocating head, being rigidly fastened therein to move with the head, and each works through alining openings in the bed-plate 43, the guide-plate 45 and the die 44. These two punches serve to trim the edges of the sheets of paper undergoing perforation to render the finished perforated music-sheet of uniform width throughout, since the paper as it comes from the mill is liable to be nonuniform in width. Between the punches 53 is the row of similar perforating-punches 54, formed with concavities in the extremities of their upper ends which extend and are free in the space between the angle-bars 47, these punches passing through the rows of openings in the bed-plate, guide-plate and die, in which they are free to move vertically.

Each punch 54, which registers with a horizontal opening in an angle-bar 47, has fastened upon it a finger 55 and these fingers cross the punch-raising bar 49 and extend at their free ends into vertical guide-slots 56 in the vertically-depending web of an angleplate 57 (Fig. 9) which is rigidly supported at and between the ends of its horizontal web on three similar posts 58 rising from the bedplate 43 along one side of the reciprocating head. On each of two suitable bearingwalls 59, 59, respectively rising from opposite ends of the superstructure 42, are stably supported an upper row and a lower row of similar ordinary electromagnets 60 in U- shaped frames 61 on said walls and in openings in the outer ends of which work loosely the armatures 62. Each armature has extended from it, as shown, a bent rod 63, the free end of which works in a horizontal opening in an angle-bar 47 of the reciprocating head, such end being resiliently withheld, normally, from a punch registering with it, by a spring 64 confined about the rod against a bearing-wall 59, through an opening 65 in which, of considerably greater diameter than the rod, the rod passes.

As will be seen on inspection of the diagram in Fig. 14, each electromagnet 60, of which seventy-four are represented, is connected at one end with one pole of an electriccurrent generator, conventionally represented at X, its opposite pole being connected with the contact-roller 25 engaged by the contacts 27, of which seventy-four are shown and each of which is connected with the opposite end of a different electromagnet.

On the shaft 50 is a drive-wheel 66 having a belt-connection 67 with an electric motor 68 represented in Fig. 1, this shaft being also geared, by an endless belt 69, with the pulley 41 on the shaft 40 to drive the feed 19 through the medium of the belt 38.

Vith the motor 68 in operation, rotation of the shaft 50 operates the feed 19 to run the master-sheet 20 across the contact-fingers, this sheet gathering in a suitable receptacle 201. The webs to be perforated are extended one over the other from the rolls 17 across the die 44, through the space between it and the punch-plate 45, and thus across the path of the punches, to feeding-devices, hereinafter described, these webs passing over an inclined guide-table 7 O and under a weighting plate 71 imposed thereon for exerting tension on the paper.` Rotation of the shaft 50 furthermore causes the eccentrics upon it to reciprocate the said head and with it the ends of the rods 63 in their openings in the angle-bars 47, but without actuating the punches 54 unless their magnets are energized, because these punches are free in the head, though reciprocation of the latter actuates the end-punches 53 continuously, because of their rigid connection with the head, to cut the edge-portions of the webs. All of the punches 54, which are comparatively light and exert more or less friction in the openings through which they work, normally bear at their cutting ends on the uppermost web of paper passing across them. When a .perforation in the traveling master-sheet registers with a contact-finger 27, the branch-circuit containing the latter and its electro-magnet is closed, the resultant energizing of that magnet causes the attraction of its armature to protrude the end of the rod 53 extending from it over the punch 54 registering therewith to engage the concaved extremity of the latter, and the downward stroke of the head, therefore, causes the rod to drive the punch through the webs. The energized condition of the magnet continues until the perforation in the mastersheet clears the contact-nger in its path and the head meantime reciprocates, repeating the downstrole of the punch to cut the same hole in the webs as that in the 'master-sheet through which it is actuated. Each upstrole of the head causes the bar 49 upon it to raise the punch 54, which is guided in its movement by the finger 55 upon it working in a slot in the` guide-plate 57.

Similar co-acting feed-devices 72, all of the same construction illustrated in Figs. 1() and 1 1, are provided for the perforated webs, one for each. They are supported on a series of steps 7 3 in an extension 74 of the superstructure 42, and each involves the construction described as follows: ln the base-portions of similar standards 75 rising from opposite steps 73 in the extension 74 and containing vertical slots 76 in their upper portions, is journaled a shaft 77 carrying, between the standards, a roller 78 and on one end a ratchet-wheel 79 engaged by a spring-pressed pawl S0 pivotally fastened to an arm 81 extending from a sleeve 82 loosely surrounding the shaft. On another shaft 83, having fiattened end-heads 84 slidingly and non-rotatably confined in the standard-slots 7 5, is rotatably supported a roller 85 held resiliently against the roller 7 8 by springs S6 confined against the heads 84 and adjustably fastened about threaded pins 87 working in the upper ends of the standards. All the arms 81 on one side of the series of devices 72 are pivotally connected with a longitudinally reciprocable bar 88 connected with one end of a link 89, the opposite end of which is eccentrically journaled to an end of the driveshaft 50. Thus in each rotation of the driveshaft it operates the bar S8 to engage the pawls S0 with the ratchets 79 and thereby rotate them the extent of one tooth, the arrangement being such as to cause each step of the resultant step-b v-step movement of the devices to actuate the roller 78 of each to feed the perforated sheet to the extent of the cutting action thereon of a punch 54.

To cause each feed-device to resist tendency of the retractive movement of the pawl 8O against the ratchet 79 to turn backward the shaft 77, a friction-brake is provided, consisting of a peripherally grooved pulley 90 on the end of the shaft opposite that carrying the ratchet, and a springband 91 bears against the Orooved periphery of the pulley.

By providing the pulley 39 on the shaft 4() for connecting at any diameter thereof the shaft 32 through the medium of the belt 38, the speed of feeding the master-sheet and webs undergoing perforation may be alike, to cause the perforations in the latter to correspond in length with those in the mastersheet, or the speeds may be differential to decrease or increase the lengths of the perforations in the webs relative to those in the master-sheet for rendering the tempo of playing the instrument under the control of a perforated music-sheet slower or faster than that due to the length of perforations in the master-sheet.

What I claim as new and desire to secure by Letters Patent is- 1. In a perforating-machine of the character described, the combination with a frame, of mechanism for feeding sheet-niaterial to' be perforated, a rotary drive-shaft carrying eccentrics, a head comprising a pair of parallel bars provided with rows of transverse rod-openings connected at their ends in spaced relation to each other and with said eccentrics, and a punch-retracting bar, a row of reciprocable punches With their outer ends Working in the space between said bars and registering with said openings, a slotted guide-plate extending along the row of punches, fingers extending from the punches into the slots of said guideplate, and reciprocable punch-driving rods Working in said openings to engage said punch-ends, whereby movement of the head engages the rods with the punches to drive them.

2. In a perforating-machine of the character described, the combination with a frame, of mechanism for feeding sheet-niaterial to be perforated, a rotary shaft supported on said frame and carrying eccentrics, a head connected with said eccentrics to be reciprocated by rotation of the shaft and provided with transverse rod-openings, independently reciprocable punches with their outer ends Working in said head and registering with the openings therein, a perforated bed-plate forming a rigid guide for the punches, electromagnets supported on the frame and having spring-retracted armatures provided With rods Working through said openings to engage said punch-ends, an electric circuit containing said magnets., cooperating punch-retracting means on the reciprocating head and bunches for positively retracting the punc ies by the movement of said head, and master-sheet feedingmechanism provided with electric contactfingers to be traversed by the master-sheet and contained in said circuit, for the purpose set forth.

3. In a perforating-inachine of the char- I acter described, the combination with a frame, of a rotary drive-shaft carrying eccentrics, a head connected with said eccentrice to be reciprocated by rotation of the shaft, a row of independently reciprocable punches Working in said head, reciprocable punch-driving rods extending transversely of the punches and head and Working in said head to engage at their end-portions the punches transversely thereof to drive them, and a feed-device for the sheet-material to be perforated consisting of a roller journaled in standards on the frame and carrying a ratchet, a spring-pawl supported to engage said ratchet and having an eccentric connection With said shaft, and a springpressed roller movably supported in said standards to coperate With the feed-roller.

fl. ln a perforating-machine of the character described, the combination with a frame, of a rotary drive-shaft carrying eccentrics, a head connected with said eccentrics to be reciprocated by rotation of the shaft, a row of independently reciprocable punches Working in said head, reciprocable punch-driving rods extending transversely of the punches and head and Working in said head to engage at their end-portions the punches transversely thereof to drive them, a series of rollaper supports on the frame at one side of t e punches, a feed-device for each roll supported on the frame at the opposite side of the punches and each consisting of a roller journaled in standards and carrying a ratchet, a spring-paWl-carrying finger, and a spring-pressed roller movably supported in the standards to co erate with the feed-roller, a bar With Wi ich said lingers are pivotally connected, and a link extending from said bar and eccentrically connected with the drive-shaft.

HENRY K. SANDELL.

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