US1225515A - Printing-machine. - Google Patents

Description

G. S. SLINGERLAND, J. F ZEIFANG & J. GOFFIN.

PRINTING MACHINE APPLICATION FILED JUNE 30. 1913.

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PRINTING MACHINE.

APPLICATION FILED JUNE 30,1913.

Patented May 8, 1917.

4 SHEETS-SHEET 2 G. S. SLINGERLAND, J. F. ZEIFANG Q J GOFFEN.

PRINTING MACHINE.

APPLICATION FILED JUNE 30. 1913.

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PRINTING MACHINE.

APPLICATION HLED JUNE 30.1913.

Patented May 8, 1917.

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GEORGE it. SLINGERLAND, JOHN F. ZEIFANG, AND JOHN GOFFIN, OE NIAGARA FALLS, NE'W YORK, ASSIGNOBS T0 N1 QGARA MULTIK LE 'TJYPEV RITER COMPANY, 033

NIAGARA FALLS, NEW YORK.

PRINTIN G-lliACHINE.

n n Mi li/5,8 1

Application filed June 30, 1913.

To all whom if; may concern:

Be it known that we, GEORGE S. SLINGER- LAND, rlei-in F. fj l gihiG, and JOHN GOFFIN, citi. ms of the United States, residing at Niagara Falls, in the county of Niagara and State of New York, have invented a new and useful improvement in Printing-Machines, of which the following is a specification.

This invention relates to printing niachines, more particularly of the kind in which the printing is effected by means of an inked ribbon arranged between the type form and a movable platen by wh'ch the paper and the ribbon are pressed against the type.

One of the objects of this invention is to so construct a machine of this kind that the type form can be readily moved out of the operative position for changing the type without requiring any manipulation of the ribbon, thereby making it possible to oper ate the machine at greater speed.

Other objects of the invention are to improve and simplify the construction of the means for adjusting the platen roll relatively to the type to permit the roll to be readily adjusted and to be held in its adjusted position without necessitating the manipulation of any locking or holding means; also to provide paper ejecting means of improved construction; also to provide a type chase of strong and ri id construction, which will securely hold the type in place; also to improve the construction of machines of this kind in the other respects hereinafter specilied.

v In the accompanying drawings, consisting of the sheets:

Figure l is a side elevation of a printing machine embodying the invention, a part thereof being broken away.

Fig. 2 is a sectional elevation thereof on line 2-2, Fig. 3.

Fig. 3 is a. plan thereof, partly in section.

Figs. and 5 are sectional elevations of the platen and its mountings on an enlar -d scale, on line i l, Fig. 3, showing in di. orout positions the means for raising and lowering the platen.

Figs. 6 and 7 are sectional elevations of the platen and. it mount g on line 6-6,

llatented May 8, 3191?.

Serial No. 776,519.

Fig. 8, showing the parts in the same positi ns shown in Figs. 4t nd 5, respectively.

Fig. 8 is a transverse sectional elevation thereof on line 8 8, Fig. 3.

Fig. 9 is a longitudinal sectional elevation thereof on line 9-9, Fig. 8.

Fig. 10 is a sectional. elevation similar to Fig. 3, of an alternative construction.

Like reference characters refer to like parts in the several figures.

Briefly stated. the machine compri:-;cs a base or frame it. which supports the tyl'ie chase t containing the type indicated in dotted lines at C in fi ig. 2. An inked ribbon D is stret lied over the type on the chase and the impression is made by means of a rotatable platen which is adapted to move back and forth over the type lengthwise of the machine, upon the paper or other material placed on the inked ribbon.

The base or frame A of the machine in the construction shown comprises a plate having an upper flat face a on which the chase B is adapted to rest, and provided on its underside with reinforcing ribs a extending lengthwise and transversely of the machine, and with feet or supports o The base has upwardly extending side walls a at its opposite sides, between which the chase B is located. Except as hereinafter specilied, the base may be of any suitable or desired construction.

In order to render the chase easily accessibio for changing the type thereon, the base A is so constructed as to permit the chase to be removed at one end thereof, preferably the front end, where it is convenient to the operator. For this purpose the base is provided with a forwardly extending projection or shelf a upon which the chase is adapted to rest and the chase is provided with a handle Z) for moving the same into and out of its operative position on the base. The chase may be held in its proper position on the base of the machine by any suitable means. such, for example, as pins 7), F 3, which project upwardly from the base A and are adapted to enter into holes 72 formed in the chase. The chase is removed from the machine by first raising the handle Z) to lift the chase out of engagement with the pins and then withdra ng the chase.

The ribbon D is wound on spools ll] and E journaled respectively at the front and rear ends of the machine. In order to enable the removal of the chase lengthwise from the front of the machine, the front spool E is journaled, above the path of movement of the chase, in bearings e rising from the sides of the base. The ribbon is preferably passed over a guide roller 6 which is also ournaled in \the bearings and leads the ribbon substantially to the level of the type. 6 represents a shield or guard which extends transversely of the machine over the ribbon spool E.

F represents the platen, which may be of the usual construction, having an outer covering of rubber or the like for yieldingly pressing the sheet to be printed toward the type for making the impression. The platen is journaled in a platen carriage adapted to move lengthwise of the machine to permit the platen to roll over the type to effect the printing. The platen carriage may be of any suitable construction, that shown in the drawings comprising two side frames G G, which are arranged to travel on the sides of the base and are connected by an operating handle 9 connectin arms 9 extending forwardly from the side frames G, and the side frames of the carriage rest and are adapted to slide on guide rails on the side walls of the base. Each side frame has depending portions g and g at opposite sides of the guide rail over which the side frame is arranged, which prevent lateral displacement of the side frames from the guide rails. To prevent the carriage from lifting off of the guide rails, the downwardly extending portions 9 of the side frames have rollers j ournaled thereon and adapted to engage the lower face of the guide plate. g represent bufiers which serve to stop the movement of the carriage at opposite ends of the machine.

The platen, as usual, is adapted to make the impression during its movement from the back to the front of the machine and is then raised sufficiently to clear the paper during its return movement to the back of the machine. The platen is raised and lowered for this purpose, in the construction shown, by platen shifting eccentrics H H, which are rotatably mounted on the side frames G of the platen carriage and have eccentric holes in which the journals of the platen bear. These eccentrics are provided at their inner ends with flanges or plates it having arms 7t which are adapted to strike stops 72,2 at the end of the forward travel of the carriage for turning the eccentrics to raise the platen and to strike similar stops 7&3 at the end of the rearward travel of the carriage for returning the platen to its lower operative position. The platen is preferably held in either its upper or lower position by balls 71. which are located in holes in the side frames of the platen carriage and are pressed against the plates h of the eccentrics H H by springs 7?, see Figs. 4, 5 and 8. Each ball h is adapted to spring into one or another of two depressions it in the adjacent plate 72. for releasably retaining the platen in its upper and lower positions. Any other suitable means may be employed for shifting the platen roller and for releasably holding the same in its upper and lower positions.

In order to control the pressure of the platen upon the paper, the following means are provided for adjusting the platen relatively to the type independently of the platen shifting means just described:

The platen shifting eccentrics ll H are arranged to turn in eccentric bushings .l I which are in turn rotatable in holes 11 in the side frames G. Each of the eccentric bushings is provided with peripheral worm gear teeth which. mesh with a worm or screwthread on an adjusting screw i. The adjusting screw is arranged to ti '1'! without endwise movement in a hole if in the side frame of the platen carriage. The screw preferably has a knurled head 71 at its upper end and a spring engaging the head holds the adjusting screw against accidental turning. The platen can be adjusted relatively to the type by turning the adjusting screws which turn the eccentric bushings l. The bushings move the shifting eccentrics H and the platen relatively to the type. The described adjusting means for the platen have the advantage that the platen can be very accurately adjusted relatively to the type by merely turning the adjusting screws, and that the screw and spring positively lock the adjusting means in the position to which they are set without requiring the separate manipulation of any locking means.

*T K represent the usual friction wheels which are mounted on the platen shaft and are adapted to en age with spring-pressed tracks K K to insure the turning of the platen as the same passes over the type. The tracks are locatec. at the sides of the machine and are provided with downwardly extending guide pins 7. which slide in holes in the frame of the machine. Springs press the track upwarc ly into yielding engagement with the wheels. Any other means could be employed to insure the turning of the platen roll about its axis as the platen passes over the type.

The means preferably provided for removing the paper from the machine after the printing operation are constructed as follows:

The flanges or plates h of the two platen shifting eccentrics H are connected by a rod L which extends transversely of the machine and which is provided with hooks Z. The rod is so positioned on the flanges it that the hooks will be in their lower position, shown in Fig. 7, when the platen is raised out of engagement with the paper at the end of its forward movement. The hooks, when in their lower position, are adapted to engage the adjacent edge of the paper, and when the platen carriage is rcturned lo its starting position the books will shove the paper rearwardly off of the machine. The hool-zs' may be adjustably secured to the rod L in any suitable man nor, for example, each hook may be socured to a sleeve Z which is secured on the rod l) by a set screw Z The paper removing means shown are simple and inexpensive in construction and require no additional mechanism.

Any usual or suitable means may be used for feeding the ribbon from one spool to the other. In the construction shown, the spool E is provided with a ratchet wheel M which is located on one side of the machine and the spool E is provided with v a ratchet wheel M which is located on the opposite side of the machine. Dogs m and m." are pivoted on the opposite sides of the laten carriage in position to engage with the ratchet wheels M and M respectively. A spring m for each dog, secured to the platen carriage, is adapted to hold the dog in the position shown in full lines in Fig. 1, in which position the dog is adapted to engage the ratchet wheel to turn the same for feeding the ribbon in one direction. The dog can be moved into the position shown in dotted lines in Fig. 1, in which position it is held by the spring out of engagement with the ratchet wheel. When it is desired to feed the ribbon in one direction, the dog on one side of the machine is placed into its operative position and the other dog is moved into its inoperative position. When it is desired to reverse the direction of feed, the positions of the two dogs are reversed.

In the modified construction shown in Fig. 10. the chase is mounted upon a plate P which is slidably arranged in the frame A of the machine and on which the chase can be secured in the usual manner, for example by means of pins 79 engaging in holes 7; in the chase. The plate is pro 'ided with a handle 79 for withdrawing the plate from the frame. The plate can be made heavy enough to be 'retained in its operative position by its own weight, or it may be held in its operative position by spring-pressed balls 72 which are adapted to enter into sockets in the lower face of the plate P. The balls in the construction shown are housed in tubes 39 extending through the base and are pressed upwardly into engagement with the plate P by means of springs 39 also contained in the tubes.

By means of the construction shown in Fig. 10, chases of the ordinary kind heretofore used can be employed in connection with the machine described.

We claim as our invention:

1. In a printing machine, the combination of a chase which carries the type, a base which supports said chase and which is provided with means to permit the chase to slide lengthwise of the base, an inked ribbon which extends over the type in a fixed relation with regard to the base and which, in its operative position is arranged at a distance from the base and forms with the base a passage through which the chase can pass into a position in which one end of the chase extends beyond the ribbon to render the type accessible, a handoperated presser roller adapted to be moved over the type, and means for withdrawing the chase by hand from its operative position under the ribbon.

2. in a printing machine, the combination of a chase which carries the type, an inked ribbon extending over said type, a base which supports said chase and which .has walls between which said chase is con fined, one end of said base being open to permit the chase to slide lengthwise of the base into its operative position and into a position in which one end of said chase extends beyond said ribbon to render the type accessible, spools on which said ribbon is wound, one of said spools being arranged at the open end of said base and above the level of the type on the chase, a handle on said chase extending underneath said spool and beyond said ribbon whereby the chase can be withdrawn from its operative position under the ribbon, and a hand operated roller adapted to be moved over the type and cooperating therewith to perform the printing operation.

3. In a printing machine, the combination of a base, a chase which is slidably mounted on said base and which carries the type, an inked ribbon extending over the type, spools on which said ribbon is wound, one of said spools being arranged above the level of the type, a handle on said chase extending underneath said spool and beyond said ribbon whereby the chase can be withdrawn from its operative po sition under the ribbon, means for yieldingly holding said chase in operative relation under the ribbon, and a platen adapted to cooperate with the type for performing the printing operation.

4:. In a printing machine, the combination with a platen, a carriage on which said platen is rotatably mounted and which is adapted to move back and forth over the type on the machine, a rotatable eccentric on said carriage which supports said platen, a worm gear on said eccentric, and a worm ngaging said worm gear for adjusting said eccentric to control the position of said platen relatively to the type, a second eccentric journaled within said first mentioned eccentric, and relatively stationary means at opposite ends of the path of travel of said carriage for engaging said second eccentric for turningthe same to move the platen alternately into and out of operative relation to the type.

5. In a printing machine, the combination of a chas which carries the type, a base which supports said chase and which is provided with means to permit the chase to slide lengthwise oi the base, an inked ribbon which extends over the type, rollers on which said ribbon is wound and which are mounted. on said base in position to guide the ribbon clear of the path of movement of saidslidablc chase so that the chase can be removed from its operative position into a position in which the end of the chase extends beyond the ribbon to render the type accessible, and a hand operated presser roller adapted to be moved over the type.

(S. In a printing machine, the combina tion of a platen, a carriage in which said platen is rotatably mounted and which is adapted to move back and forth over the type on the machine, eccentrics in said carrings in which said platen is journaled,

means adjacent to the ends of the path of movement of said carriage to turn said eccentrics to shift the platen into and out of its printing position, a rod connecting said eccentrics, and paper removing members mounted on said rod and adapted to be moved into and out of position for engaging the paper by the turning of said eccentries.

7. In a printing machine, the combination of a platen, a carriage in which said platen is rotatably mounted and which is adapted to move back and forth over the type on the machine, eccentrics in said carriage in which said platen is journaled, means adjacent to the ends of the path of movement of the carriage for actuating said eccentrics to shift the platen into and out of its operative :position, said eccentrics having flanges, and paper removing means connected with said flanges and which are moved into and out of their operative positions by the actuation of said eccentrics.

Witness our hands, this 23rd day of June, 1913.

GEORGE S. SLINGERLAND. JOHN F. ZEIFANG. JOHN GOFFIN.

Witnesses PATRICK J. EAGAN, JOHN PFIs'rEnEn.

Copies oi. this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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