US387500A - Machine - Google Patents

Description

(No Model.) l 9 Sheets-Sheet 1.

D. I. BCKERSON.

PRINTING MACHINE. No. 387,500. Patented Aug. 7, 1888.

(Noy Model.) 9 Sheets-'Sheet` 2.

D. 1. EGKERSON.

PRINTING MACHINE. 0.887.500. A 123.1@ njged Aug.- 7, 1888.

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(No Model.)

D. 1. BGKERSON.

PRINTING MACHINE.

Patented Aug. 7, 1888,.

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D. I. EGKERSON.

PRINTING MACHINE.

Patented Aug. 7, 1888.

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(No Model.)

D. I. ECKERSON. PRINTING MACHINE.

Patented Aug. 7, 1888.

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(No Model.)

D. I. BGK-ERSON.

PRINTING MACHINE.

`No. 387,500. Patented Aug. '7, 1888.

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PRINTING MACHINE; No. 387,500. Patented Aug. 7, 1888.

9 Sheets-Sheet 8.

Patented Aug. 7, 1888.

D. I. BCKERSON.

PRINTING MACHINE.

(No Model.) 9 Sheets-Sheet 9.

D. I. BGKERSON.

PRINTING MACHINE.

A180.887,50() Patented Aug. 7, 1888.

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Starts DAVID I. EOKERSO, OF VORGESTER, NEW YORK, ASSIGNOR OF ONEHALF TO GEORGE B. WRIGHT, OF SAME PLACE.

PRINTING-MACHINE.

PECIPICATION forming part of Letters Patent No. 387,500, dated August '7, 1888.

Application filed June 30, 1887.

To all whom 15 may concern:

Be it known that I, DAVID I. EcKERsoN, a citizen of the United States,residing at W'orcester, in the county of Otsego and State of New York, have invented certain new and useful Improvements in Printing-Machines; and I do declare the following to be a full, clear, and eX- act description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawingsandto the letters and gures of reference marked thereon, which form a part of this specification.

This invention relates to improvements in that class of printing presses or machines designed to print upon paper taken from a roll, and which, after being printed, may, if desired, be cut into sheets oi' any size, all ofV which operations are performed automatically by the machine, the especial object of the invention being to produce a printing-press that shall be capable of taking its impressions from ordinary type or stereotypeplates in a very rapid manner and at the same time execute the work in a good and legible form.

In carrying ont my improvements I eonstruct a rectangular frame of metal, to and upon which all 1l he operative parts of ythe machine are secured. These consist of asuitable driving-shaft revolving` in bearings attached to the opposite sides of the frame, said shaft carrying a cam by which a vertically-reciprocating movement is given to the type-bed, causing it to come in contact at each upward movement with the impression-plate or stationary platen above it or to canse the type secured upon said type-bed to act upon the paper passing between it and the platen.

In order to properly. ink the types before each impression, an inking-disk is placed at each side of the machine, over which and the type-bed the inking-rollers pass,traversing the surface of the type on each journey from one disk to the other, thus allowing an impression to be made after cach passage ofthe rollers in either direction, instead of allowing only one impression to two trips of the inking-rolls.

When but one ink table or disk is used, .as in the common press, the rolls must travel over the type and return between the impressions, thus causing much loss of time.

Serial No. 243,003.

(No model.)

Motion is given to the hiking-rollers by a pitman attached to a crank upon a shaft at the side of the machine, connected t0 the main shaft by bevel-gear of such a character as to allow the inking-rollers to travel back and forth over the type once to each two complete revolutions of the main shaft, the machine making two impressions to each complete revolution of the shaft which gives motion to said 6o rollers. To the oscillating arm carrying the inkingerolls is also attached the swinging arm which operates the pawls that rotate the ink- .ingfdisks The devices which draw the paper from the roll consist of two driven rolls between which the paper passes, an intermittent movement being given to these rolls by means of suitable gearings connecting them with a horizontallyplaced shaft which is operated at the proper 7o time through the agency of a rack connected with an adjustable crank n pon a shaft at the side ofthe machine, revolving at the same speed as the main driving-shaft, the pinion upon which the rack operates being loose upon its shaft and causing the latter to revolve in one direction only through the agency of a pawl and ratchet, the forward movement of the feed-rolls being so timed as to draw forward the paper when the type-bed is at its 8o lowest point and to remain stationary while said bed is carrying the type up and making an impression.

As the crank-pin which gives motion to the rack is capable of adjustment nearer to or far- S5 ther from the axis of the shaft which carries it, it is evident that the movement of the rack, and consequently that of the feed-rolls, can be graduated to suit the desired forward movement of the paper. 9o

As in printing haudbills and like articles it is necessary to cut the continuous sheet upon which they are printed :into pieces, each of which shall contain the matter of a single bill, I provide a pair of rolls having adjustable euttingdisks thereon,which split thesheet longitudinally into any desired number of parts. These parts are then cut transversely into pieces, each being the length of a single imprint, by a vertically-reciprocating cuttingroo blade operated by a cam upon the shaft which gives motion tothe feed-rolls,so that the movef ments of the latter and the cutter are synchronous, therefore dividing the continuous sheet into pieces of the same length as the distance the sheet is fed forward at each imprint.

The roll ol` paper is carried upon a shaft in suitable supports at one end of the machine, said shaft being provided with a grooved pulley over which passes a cord, one end attached to the frame of the machine and the other to a weight, the cord and pulley thus forming a frictional device which prevents the paper from unrolling any faster than it is drawninto the machine by the Vfeed-rolls.

Then it is desired to print the sheet upon both sides, a roll driven bya belt from the main shaft is substituted for the receiving-table as the sheet of paper passes through the machine the rst time. The sheet is thus rolled up, and after the printing is completed on one side the roll of paper is transferred to the opposite end of the machine and passes through it a second time to receive the imprint on the opposite side.

rlhe whole apparatus thus forms a complete automatic printing-machine, making its impression from an ordinary plane form of type, instead of the cylindrical form commonly used lor fast printing, in which the ordinary type cannot be used, but the printing must be done from a stereotypeplate bent to the curvature of the cylinder, thus making a saving in time and cost.

In the accompanying drawings, which form a part of this specification, and in which similar letters of reference indicate like parts in the different figures, Figure 1 is a side elevation of the machine complete as arranged for printing on one side of the sheet of paper. Fig. 2 is a longitudinal section of the same upon an enlarged scale. Fig. 3 is a top or plan view showing the frame and position of the inkingdisks with relation to the typebed. Fig. 4 is a transverse vertical section through the machine on line 3 3 of Fig. 1. Fig. 5 is a similar section online 2 2 of Fig. 1. Fig. 6 is a horizontal section on line et 4, Fig. 5, showing the arrangement of the mechanism which operates the cutting-knife. Fig. 7 is a longitudinal section through the typebed and inking-disls, illustrating the arrangement of mechanism used to rotate said disks. Fig. S is a perspective view of the type-bed removed from the machine. Fig. 9 is a similar view of theinner part of the frame,showing the grooves y which act as guides for the type-bed and the Stepcpcnings which receive the spindles of the inlcclisks. Fig. 10 is a side elevation showing, upon an enlarged scale, the rack and gear which operate the feed-roller. Fig. 11 is a horizontal section of the saine on the line 8 8. Fig. 12 is an end view of the ratchet-wheel and pawl which operate the shaft that drives the l'cedrolls. Fig. 13 is a sectional view of said feed shaft on theline 1010of Fig. 12. Fig. letis a vertical section through a roll of paper as supplied to the machine, showing the devices for holding the same in position and preventing its rotation upon its supporting-shaft. Fig. 15 is a top or plan View of the platen or plate which receives the pressuie from the imprint. Fig. 16 is a side elevation of a part of the machine with the devices attached which receive the printed sheet and roll it up when it is desired to print said sheet upon both sides. Fig. 17 shows a section of the same on line 9 9 oi' Fig. 16. Fig. l8shows a sectional view on line 5 5 of Fig. 2. Fig. 19 shows a sectional View on the line 6 6 ol'Fig. 2. Fig. 20 shows a sectional view on the line 7 7 of Fig. 2.

lhe working parts of this machine are carried upon a frame composed of the two sides A A', united at suitable points by cross pieces or girts and by the inside transverse frame, B, which supports and guides the movable type' bed G and hiking-disks D. The sides A A have each a rectangular inclined projection, B', to which the ends of said transverse frame are bolted by the bolts a a. Above this frame B and attached to it by means of the bolts?) b, provided with adj listing-nuts, is the platen E, the under side of which is covered with a layer of rubber or other equivalent yielding mate' rial, c, secured to the metallic under surface of the platen by a suitable cement. As this yielding material does not form a proper wcaringsurl`ace to receive the impression,it is covered by a layer of linen cloth or other suitable woven fabric, c', which is carried across the face of the platen and a short distance upon its sides and secured thereto by the screw-bolts a a', thus affording a ready means of removing and replacing the cloth when made necessary by its wear or for other purposes.

The typelbed C is provided with suitable upwardly-projecting ledges, d d, at each side. within which the form of type is locked, and with two downwardlyprojecting guides, d d', which are received in the recesses d d of the frame B, thus forming an eflicicnt guide for said typefbed in its reciprocating movements. To the under side of the typebed is secured by means ofthe bolts a a the hollow conical and slotted extension or standard C', terminating at its lower end in the cylindrical portion C, which passes through a suitable orifice in the cross-bar A, forming a guide for the lower end of said extension C and steadying the movements of the type-bed.

In the lower part of this extensioirpiece C' are formed two slots, e and c', crossing each other at right angles, the slot e being larger than the other and having pivoted in its upper and lower ends the two friction-rollers e e, and between these rollers in the slot is placed the cam F, mounted upon the main driving-shaft F of the machine, which passes transversely of the machine through the slot c' and revolves in journal-bearings gg, secured to the side frames, A and A. The periphery of this cam F', as shown in Fig. 2 of the drawings, is concentric with its axis for at least onehalf its perimeter, so that while the type-bed is resting upon the concentric portion said bed shall remain stationary at the lowest point of its movement long enough to allow time for the inking-rolls f f to pass over the surface of the type. These inking-rolls are carried by the adjustable spring-bearings ff, attached in the usual manner to the upper ends of the swinging arms H H, secured at their lower ends upon the rock-shaft H', journaled lengthwise ofthe machine in the cross-bars H.

In order to give to the arms H H the movement needed to carry the inking-rollers from one inking-disk D across the type to the inking-disk upon the opposite side of the machine, a bevel-pinion, h, is secured upon the projecting end of the shaft F, which pinion engages with the wheel It', having twice as many teeth as are in the pinion7 said wheel being secured upon the shaft I, revolving in journalbearings attached to the side A of the machine-frame. Upon one end of this shaft I is secured a crank-wheel, h. In a radial slot formed in this crank-wheel is adjustably secured the crank-pin z, to which is attached the pitrnan J, connecting with the arm J, attached to the rock-shaft H. It will be apparent from this construction that two revolutions of the main shaft F will be required to producea complete reciprocation of the inking-rolls-that is, to carry them from one inking-disk to the other and back again, thus passing once over the type at each imprint. The revolution of the shaft F causes the cam F to elevate the type-bed and bring it into forcible contact with the platen or with the paper placed just beneath it. To give a rotary movement to the inking-disks D, a swinging arm, J, pivoted at t' to a downwardly-projecting arm of the frame, is connected with one of the arms H which operates the inking-rollers by a bolt, i, passing through an elongated slot in both arms and connected at its upper end by a pivotal connection with the horizontally-reciprocating bar K, carried in guides attached to the type-bed. To each end of this bar K are movabl y secured by means of a set-screw the vertical arms k 7c, each of which has pivoted in its upper end va pawl, k', with its inner end weighted or attached to a spring, so that its outer free end is always retained in connection with the ratchet-teeth formed on the under side of the disk, as shown in Fig. 7 of the drawings. A downwardly-projecting pint-le, D, upon the under side of the inking-disks rests in a suitable hole formed for its reception in each of the cross-bars D ofthe transverse frame B and forms the support and bearing for said disks. Y

Upon one end of the frame of the machine are secured two standards, L L, the upper ends of which are bifurcated and form thejournalbearings for the roll-shaft L. This shaft carries two cones, m m, the cone m being txed upon the shaft and the cone on made adjustable thereon by means of a set-screw, so that the concs which enter the opening in the center of the roll of paper, M, may be adjusted to the length of said roll. In older to give these cones a firm grip upon the roll M, they are each provided with a series of projecting ribs, n, which, when the cones are forced into the ends of said roll, firmly grip the same and prevent its turning upon the shaft L. As a further means of regulating and retarding the unwinding of the paper from the roll, a grooved pulley, L, is attached to the adjustable cone, over' which pulley passes a cord, 1r, having a weight, IV, attached to its end. This weight causes the cord to act as a frictionbrake upon the roll and prevent the paper from unwinding therefrom faster than it is taken up by thel feed-rolls in printing. lIhe paper as it is drawn from the roll M passes between the rolls N and N, mounted in the standards M M on opposite sides of the machine. Ihe upper one of these rollers, N, is pressed down upon thelower one or the paper between them by means of the screws a a, which are prevented from forcing them too tightly together by spiral springs inserted in the standards between the journal-boxes in which the rolls revolve and the adjustingscrews. The sheet of paper then passes over the supporting-rollsOO,attachedtotheplaten, which rolls prevent it from dropping on the type-bed when the latter is lowered to allow the inking-rollerstopassoveritssurface. Thesheet then passes onward to the feed-rolls P P', arranged one above the other in the standards P", said rolls being caused to take a firm grip on the paper, not only by the weight ofthe top roll, P, but also by the pressure brought to bear upon this roll by the screws n a, which act through springs upon the bearings of this roll in the same manner as the screws a upon the bearings of the roll N. In order to give the necessary intermittent movement to these feedrolls, they are connected with the main driving-shaft through the following mechanism: As heretofore described, the shaft I revolves in suitable bearings attached to a side frame of the machine at a speed one half that of the main shaft F, and from this shaft I the shaft I', which gives motion to the feedrolls, is driven; but as it is necessary that the shaft l should revolve at the saine speed as the main shaft it is connected by the spurpinion O' with the toothed wheel O, having double the number of teeth that the pinion has and mounted upon thc shaft I. At the opposite end of the shaft I from that which carries the pinion is secured the slotted crankarm 1J. An adjustable crank-pin,p,secured to this arm, is connected by a pitman, p, with the reci procatiug rack It, sliding in a guide, R', attached to the side Aof the frame. (See Figs. 10 and l1.) This rack engages with the spur-gear Q, loosely mounted on the shaft I, which shaft is carried in bearings attached to the side frame of the machine. this gear Q is formed integral with or attached to a double-hanged disk, Qwhieh carries pivoted within the flanges, one or more pawls, r, the engaging ends of which pass through openings in the inner flange and engage with the IIO IIS

The hub of teeth of the ratchet-wheel Q", secured upon the shaft l". (See Figs. l2 and 13.) ln order to secure the engagement of these pawls with the ratchet, a spring, i", is secured to the disk between the flan ges and bears continually upon the rear end of the pawls, so that the pawls are always in engagement with the ratchet no matter at what point of its periphery it may be situated. A cover, r", is secured to the open side ofthe flanged disk Q', inclosing the ratchet and preventing` the entrance of dirt or other matters which might prevent the perfect operation of the parts. Made adj ustable longitudinally upon the shaft l," by means of a spline and feather key is the miter-gear S, the mate to which, S', is secured upon the shaft ofthe lower feed-roll, P'.

The upper roll, P, is made to revolve in unison with the lower one by means rof the spurgears S" S", secured upon the shafts of the feed-rolls at the side of the machine opposite to that upon which the gears S and S' are placed.

It will be apparent from this construction that the distance over which the peripheries of the feed-rolls travel at each revolution of the main shaft will depend altogether upon the distance of the movable crank-pin p' from the axis of the shaft I', thus enabling the movement of the rolls, and consequently the length of paper drawn forward, to be adjusted to the length of the imprint. As this change in the length of paper fed for fard at each imprint may necessitate a change in the position of the feed-rolls, l provide Vfor such an emergency by carrying the standards which support said rolls upon a sliding frame, T, made adjustable lengthwise of the machine by the screws T' T', connected by suitable miter or bevel gears with the cross-shaft T", one or both ends of which are provided with a hand-crank, Fig. 20, by the rotation of which the frame'T may be moved to any desired point.

In the printing of handbills and similar sheets of small dimensions it greatly facilita-tes the speed with which they1 may be produced to use a sheet of paper wide enough for two or more of the bills, the type upon the bed from which they are to be printed being duplicated or triplieated, as may be desired. After the printing upon such a sheet isaecomplished, it becomes necessary to cut it into as many strips as there are forms on the bed, which cutting is accomplished by the use of rotary shears arranged npon the frame between the feed-rolls and printing apparat us. These shears are constructed as follows: In suitable slotted standards, U U attached to the frame, are placed two shafts,U' U", the shaft U" being fitted with a series of movable sharp-edged disks, V, secured at any desired points along said shaft by set-screws t, and the shaft U having similar disks, V', arranged as desi red to correspond with those on the shaft U", but held in position against the corresponding disks of the other shaft by having a. spring, t", placed upon the shaft between said collar and the hub of the disks V', so that the latter are always kept up against the disks V by a yielding pressure, which causes them to act in dividing the sheet ofpaper like a pair of shears. Motion is given to these shears by means of the pair of mitergears e o, one of which is secured upon the shaft U' and the other upon the shaft l", while the shaft U" is driven from the shaft U' by means of spur-gears lu o', secured upon opposite ends of shafts U and U". The standards which carry these rotary shears, at the end where they are coupled by the gears o e', are located out beyond the frame, so as to make room for the assemblage of all the cuttingdisks at one end of their shafts and ont ofthe way when they are not needed for use.

lt also becomes necessary to provide means for cutting the sheet or strips transversely into pieces of a length equal to the distance that said sheet or strips are drawn forward by the feeding-rolls at each imprint. This is accomplished by the knife X, having a vertical reciprocating movement in the guides w w at each side of the frame T. A pitman, X', extends downward from the knife, and is conneeted at its lower end with the bifnrcated lever Y, at each extremity of said bifurcations being pivoted tothe frame A, and a bar, w", extends across from one arm of the lever to the other. Upon this bar the lower end of the pitman moves when the position of the frame T is shifted, the feeding-rolls and cutting-knife shifting with it. As the sheets are severed by the cutting-knife they fall upon an inclined removable table, Y', attached to the end of the machine by hooks, which eonnert with the crossbars uniting the two sides. This table is provided with an adjustable stop, which is ar 'anged in such a position as to cause the deposit of the sheets as they fall from the knife one upon the other in suitable piles.

As heretofore stated, it is sometimes desirable to print the sheet upon both sides. XVhen this is to be done, the table Y' is removed and a frame, Z, attached to the end of the machine in its place. This frame carries a roller, Z', upon which the paper as it passes from the. feed-rolls is wound. Motion is communicated to said roller by a pulley, D", upon the roller Z'. This pulley is driven by a belt loose upon said roller, and communicates motion thereto through theagency of the leatherlined frietional disk y, which is firmly secured upon the roller, and against which the pulley Z" is pressed with any desired force by a uut, y', upon the end of the roller. 3y this construction it will. be seen that as the feed-rolls revolve, the roll Z' will also revolve and take up what paper passes them; but when the feed-rolls stop, the roller Z' also stops, the pulley Z" continuing its revolution and slipping upon the surface of the i`rietion-disk The roll of paper after being printed upon one side is transferred to the opposite end and again passes through to receive the imprint upon the opposite side.

Having thus described my invention, I claim l CO IIO

as new, and desire to secure by Letters Patent, the following:

l. As animprovementin printing-machines, a horizontally-placed adjustable platen provided upon its under side at each end with the rollers O O, supporting the paper, and a yielding layer of material, c, covered by a cloth, c, passing under said yielding material and secured to the sides of the platen by screws a a', to support the paper while it receives the impression from the upwardly-moving typebed, as set forth.

2. As an improvement in printing-machines, the vertically-reciprocating type-hed C, provided with guides d', and the secondary frame B, having guide slots or recesses d to receive said guides, in combination with the coneshaped slotted support C for said bed and the cam and shaft, arranged substantially as shown and described, to produce the reciprocatiou of said typebed, as set forth.

3. As an improvementinprinting-machines, the transverse secondary frame B, in combination with vertically-reciprocating type-bed G, supported upon an inverted hollow coneshaped standard, C', said standard being diametrically slotted below the apex of the cone in two directions at right angles to each other for the reception of the cam-shaft, cam, and friction-wheels, as specified.

4. Asanimprovementinprinting-machines, the vertically-reciprocating type-bed C, supported upon the downwardly-projecting coneshaped standard C', carrying the frictionwheels e and provided at its lower end with guide-pin C", moving in a guide-orifice in a cross-bar of the frame, in combination with the cam F' and its shaft F, revolving in one of the slots of said standard and adapted to impart a vertically-reciprocating movement to said standard and type-bed, as set forth.

5. As animprovementin printing-machines, the main frame A, carrying an adjustable platen, the secondary frame B,verticallyreciprocating type-bed, and its cone-shaped slotted supporting-standard, said type-bed and standard sustained in their vertical movements by suitable guides in said secondary and main frames, in combination with the cam F', carried by shaft F and adapted to impart a vertical reciprocating movement to said type-bed by contact in their revolutions with the friction-rolls c e above and below said cam, as specified.

6. In a printing-machine, the main frame A of said machine and the transverse driving-shaft F, carrying the cam F', for giving motion to the type-bed, in combination with the longitudinal shaft I and bevel-gears h h, arranged to give one revolution of the shaft I to two of the shaft F, the disk h, provided with an adjustable crank-pin, z', connectingrod IQ and slotted swinging arm H, all operating, as shown and described, for imparting motion to the inking-rolls.

7. In a printing-machine, the combination, with the main frame A, of the inside transverse secondary frame, B, provided with inclined ends for the reception of the inclined inking-plates and guide-recesses to receive the guides of the vertically-reciprocating typebed, as set forth.

8. In an inking apparatus for printing-machines, the combination, with the swinging lever carrying the inking-rolls and a lever connected with said roll-carrying lever by an adjustable rod or connection, of the pawl-rod, pawl, and inking-disks, all arranged, as shown and described, to give a rotary motion to said disks, as specified.

9. As an improvement in means for impart-V ing motion to a system ofinking-rolls in print ing machines, the combination, with the main driving-shaft placed transversely to the main frame of the machine, of a crank-shaft placed at right angles to said driving-shaft and connected therewith by bevel-gears adapted to give one revolution of the crank-shaft to two of the driving-shaft, a pitman, and swinging lever carrying upon its free end the inkingrolls, all arranged and operated Yas set forth.

l0. In a printing-machine, the combination, with the stationary rolls, of the adjustable feedrolls P P', the rack-pinion and ratchet mechanism by which an intermittent and adjustable length of rotating movement is imparted thereto, the screws upon opposite sides of the frame, and their connecting shaft and gear for adjusting the position of the rolls P P longitudinally of the frame, as set forth.

1l. In printing-machines, the vertically-reciprocating and longitudinally-adjustable cutter X, in combination with the pitman X', cross-bar lw, bifurcated lever Y, and the shaft and cam arranged to give aswinging movement to said lever, as specified.

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

DAVID I. ECKERSON.

Witnesses:

G. BURRoUGHs, G. V. CHANDLER.

TOO

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