US1041314A

US1041314A - Printing-machine.

Info

Publication number: US1041314A
Application number: US42819608A
Authority: US
Inventors: John F Mahlstedt
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-04-20
Filing date: 1908-04-20
Publication date: 1912-10-15
Anticipated expiration: 1929-10-15

Description

J. F. MAHLSTEDT.

PRINTING MACHINE.

APPLICATION FILED APE,20,1908.

Patented 001115, 1912.

9 SHEETSSHEET 1.

vwentoz witnesses J. F.'MAHLSTEDT.

PRINTING MACHINE. APPLICATION FILED APR.20,1908.

Patented Oct. 15, 1912.

9 SHEETS-SHEET 2.

II ma ma.

WK in no I. F. MAHLSTEDT.

PRINTING MACHINE.

APPLICATION FILED APR..20,1908.

Patented 001;. 15, 1912.

9 SHBETSBHEET 3.

J. P. MAHLSTEDT.

PRINTING MACHINE. APPLICATION FILED APR. 20,1908. Lfigl glg Patented Oct. 15, 1912.

9 SHEETSSHEIET 4.

J. F. MAHLSTEDT. PRINTING MACHINE.

APPLICATION rum) APILZO, 1908.

Patented Oct. 15,1912.

9 SHEETS-SHEET 6.

u lmlrl v ===iklll Q 3. mwww Nb .wNN

IHHIHI J. F. MAHLSTEDT. PRINTING MACHINE.

APPLICATION FILED APILZO, 1908.

Patented Oct. 15, 1912.

L04LM,

9 SHEETSSHEET 6.

/Oo Q0 abtoznugd J. F. MAHLSTEDT. PRINTING MACHINE.

APPLICATION FILED APR, 20, 190B.

Patented Oct. 15, 1912.

gnventcz J. F. MAHLSTEDT. PRINTING MACHINE.

APPLIOATION FILED APR.20,1908.

1,041,321., Patented Oct. 15, 1912.

9 SHEETSSHEET 8.

auvantoz @vihwoazo Ala/(l6 1 J. 1?. MAHLSTEDT.

PRINTING MACHINE. APPLICATION II'LEI) APR.20,1908.

4 Patented Oct. 15, 1912.

- 9 sums-sum 9.

Witnaoou 1 order to imitate typewriting, and the signa- JOHN F. MAHLSTEDT, 015 LOS ANGELES, CALIFORNIA.

PRINTING-MACHINE.

is to produce a machine for printing letters circulars and the like, in which the heading of the letter may be printed with ordinary printing ink of any desired color, the body of the letter through an inked ribbon, in

ture from an electrotype or the like, so inked as to give the effect of'having been written. It is also the object of my invention to produce a machine of this character which is simple and positive in its operation, and of such a character that the employment of skilled labor to operate it is unnecessary.

With these and other objects in view my invention consists in certain constructions, combinations and arrangements of parts, the preferred form of which will be first described in connection with the accompanythe position of the parts after the bed has moved forward from the position shown in Fig. 3. Fig. 5 is a longitudinal section taken on line 55 of Fig. 1 and looking in the direction of the arrows; Fig. 6 is a top plan view of one side of the machine showing the position of the parts just before the bed reaches the limit of its backward movement; Fig. 7 is a view similar to Fig. 6, showing the position of the parts at the end of the rearward movement; Fig. 8 is a detail side elevation showing the sheet feed and delivery devices at substantially the end of the printing stroke of the bed; Fig. 9 is a view simi- Specification of Letters Patent.

'Patented0et.15,1912.

Application filed A ril 20, 1908. Serial No. 428,196.

lar to Fig. 8 showing, however, the position of the parts during the return or back stroke of the bed; Fig. 10 is a detail perspective view of the impression roller and the sheet feeding'mechanism; Fig. 11 is a central longitudinal section of the impression roller; Fig. 12 is a detail perspective view of the ribbon mechanism, and Fig. 13 is a- ;enral longitudinal section of the sheet The supporting frame is formed of a rectangular frame 1 formed preferably of L-shaped angle irons and the frame is supported by the pairs of legs 2, and 3 a rod extending between the legs adjacent to their lower ends.

4 designates the drive shaft carrying on one end the driving pulley 5 to which power may be supplied in any suitable manner.

6 designates a crank fast on the shaft 1.

7 designates the operating lever pivoted on the journal 8 carried in the bracket 9 secured upon the rod 3 by means of a set screw 10, the upper end of the lever 7 being connected to the traveling form carrying bed 11 by means of a link 12 connected to the bed- 11 by the pin 13, and at the other end to the end of the lever 7 by the pin 14:.

The lever 7 is connected to the crank 6 by means of a link 15. From this construction it will be seen that at each rotation of the shaft 4 the bed 11 will be given a complete reciprocation.

16 designates a chase adapted to be secured on the bed by any suitable means, as by the screws 17 passing through openings formed in the ends of the chase and into suitable openings in the top of the bed, as best shown in Fig. ithin the-chase 16 I show the type 18- which, in the particular construction shown, are adapted to print a letter head, the type 19, which forms the body of the letter and electrotype 20 which carries the signature.

21 designates furniture of ordinary character placed in the chase.-

22 designates a block longitudinally slotted at 23 and secured at its ends to the sides of the chase 16. The bed 11 is provided with a slot 23 which registers with the slot 23 and through both of the slots the type ribbon is' adapted to pass, as will be herein- 'ture is horizontally slotted at 24 for the passage of therinking ribbon.

25 designates the quoinof any, ordinary construction by means of which the type are locked. i

26, 27 designate the ribbon rolls journaled in extensions 28 extending from oppo'-.

J site ends

of'the bed

11, and 29 is the inking ribbon which extends from one of these rollers to the other. Erom Figs. and 12 it will be seen that this ribbon extends from the roll 26 beneaththe bed 11 and the type "18, which print the letterhead, up through the registering

slots

23, 23 in the block 22 and bed 11, then over the type 19, which print the body of the letter, through the slot 24 in the electrotype block over the end of the' chase and onjtothe roll 27. The body of the letter is consequently the only part which prints throughthe ribbon.

' 30 designates an ink roller under-which the electrotype is adapted to pass, whereby the ink is supplied thereto, the roller being journaled in bearings formed inthe free ends of the springs 31, which, attheir other ends, are adjustably connected to the frame 1 by means of the set screws 31 which pass through the elongated slots in the springs. 30.

32 is a bracket provided at one end witha head 33 through which passes bolts 34 by which thehead is secured to the under side .passes.

a suitable distance beyond the end of the of the bed 11, the head 33 being secured underneath the slot 23, so that between the slotand the front end of the bed a space 35 is'left through which the type ribbon At the front end of the bracket 32,

v bed, I provide an'upwardly projecting head *36 bored vertically at 87 to provide a bearing for the centrally projecting stud 38 of the'rotatable inking plate 39. The inking. "plate is provided on its periphery with the notches 40 with which the pawl 41, pivoted will be given a rotation by the engagement.

of the end of the pawl with the notches in theperiphery of the plate.

44 is the ink roller journaled at 45 in the side frames and beneath which the plate is adapted to travel. Preferably,- and as shown, the link roller is yieldingly held in its bearing by means of the leaf springs 45 secured at one of their ends to the pillars 45 extending up from the side frames and having'th'eir free ends extending over the open bearingsfor the roll. From this construction it will be seen that upon the recipthe ends of From this 7 rocation of the bed the inking plate 39 and the type 18 will alternately pass beneath the inking roll- 44 and in contact therewith, whereby the roll will alternately receive ink from the plate and supply it to the type.

46 is the impression roller loosely mounted on the shaft 47 supported in suitable journals 48 secured to the side frames. The shaft for the length of the roller is eccentric, as shown at 49, and 50 is a gear fast on the shaft with which a rack 51 meshes, whereby the movement of the rack by mechanism, to be hereinafter described, will turn the shaft 47 and raise and lower the impression roller to throw it into and out of contact with the form. At the end of the im-.

pression roller, opposite that at which the the gear being constantly in mesh with a rack 53 secured to the side of the bed 11 and supported by the upper surface of the side frame, whereby the impression roller will be positively rotated by the reciprocation of the bed.

54 is a U shaped frame supported at its ends by the shaft 47 passing loosely through openings therein,'the. frame being located outside the gear 52 and inside the gear 50 with its body portion extending rearward from the impression roller.

55 is ashaft extending across the frame i 54, and'journaled at its ends in the sides thereof. Preferably, and as shown, the shaft is squared between its journals and mounted thereon are the series of. rolls 56 which form the upper feeding roller. These rolls are preferably longitudinally slidable on the shaft but rotate with the shaft.

57 is a gear mounted on the shaft, at the end thereof, adjacent to the

gear

52, and 58 is an intermediate gear journaled on the side i of the frame 54 and meshing with both the

gears

52 and 57, whereby the feed roller shaft 55 is positively driven with the impression roller. 4

Mounted in bearings 59 on the side frames 1 is a shaft-60, on which is mounted the roll 61 adapted to cooperate with the driven feed roll sections 56 just described and with which the driven rolls may be moved into and out of contact. r

62 is the feed table supported at its rear end by the supports 64 extending up' from the side frames 1 with its front edge terminating closely adjacent the line of contact between the feed rolls. Located between the what I term the paper feed rest 62, its rear edge formed with a series of rearwardly projecting fingers forming between them the openings 63, these fingers terminatingclosefeed rolls and the impression, cylinder is the form, whereby the paper to be printed is guided into the bite between the form and the cylinder.

62 are a pair of light spring fingers projecting forward from the front edge of the paper rest and located outside theline of .travel of the form. These fingers extend beneath the impression cylinder and preferably at their free ends are provided with the rollers 62 the fingers operating to support the side edges of the sheet being printed'and prevent the same from stickingto the form. The front steps 65 for the sheet are formed by projections on the front bar 66 of a bail 67 having its ends perforated. Through these perforations, the shaft of the lower'feed roll loosely extend whereby the ends of the bail are supported in such a position that the front stops can project through the front portion of the openings 63 in the feed rest 62 and in front of the lower feed roll 61. I j

68 is a spring connected at one end toa side oft-he bail 67 and at its other to a side of the U shaped frame 54, whereby the spring will tend to draw the front stop 65 up into position to stop the sheet.

69 is a screw extending down through a side of the frame 54 with its lower end in contact with the side of the bail 67, so that as the frame 54 is raised and lowered at its rear end, by a means to be hereinafter described, the frame 54 turning on the shaft 47 as a center the front stops will be raised and low ered through the openings 63 and into and out of the path of the sheets, the front stops being raised when the feed rolls are out of contact and lowered when the rolls are in contact.

70 are a pair of uprights secured on the front-end of the side frames by means of the bolts 8182 and in the upper ends of the uprights is journaled the shaft 71 carrying the delivery fly frame 72 adapted to be swung from the sheet receiving position shown in dotted lines in Fig. 5 to the delivering position shown in full lines in said figure.

73 i's a cam mounted on the shaft 4-and 74 i "ted atits lower end at 7 5 to'the suppor 'nggs 2, and at its upper end carrying a rack 'Tfifiadapted to mesh with a gear 77 mounted on one -end of the shaft The cam lever 74 engages the cam intermediate of its ends and is held in contact therewith by the spring 78, whereby it will be seen that upon the rotation of the driving shaft 4 the flyframe 72 will be alternately moved from the receiving to the delivering position.

7 9 is the receiving table and on its inner end is provided with a pair ofdownwardly curved fingers 80 which are adapted to'pass behind the heads of the bolts 81 and in front ceiving table may be readily removed from and replaced on the machine.

In the operation of my machine itis necessary, since the gear of the impression roller is always in mesh with the rack on the form bed, that means be provided for lifting the impression roller from the form during the return movement of the bed. It is also necessary that during this return movement that the feed rolls be separated and the front stop raised, so that a sheet can be fed in. It, is further necessary that when the bed starts on its printing stroke the impression roller will be down in printingposition with the feed rolls biting the sheet to be printed and the front stops lowered out of the path of the sheet. In order to accomplish these results I have invented means for performing these operations, the preferred form of which I will now describe.

Running the length of the machine and supported upon the inwardly projecting portion 83 of the side frame is a bar 84 which is adapted for longitudinal movement, being held 1n positlon and guided in its movement by means of the screws 85 passing through the slots 86 in the bar and into the inwardly projecting portion 83.

87 is an L-shaped spring secured at one end to the side frame and resting at its other end upon the face of the bar 84 to act as a brake thereon and prevent movement thereof except when positively actuate-d. The rack 51 is secured to the upper face of the bar by means of the set screw 88 passing through the elongated slot 89 whereby the rack canbe adjusted longitudi nally on the bar to adjust the'pressure of the impression roller upon the form.

At the front end of the bar 84 I provide an inwardly projection head 90 and at the.

rear end a similar head 91. The head 90 is in the path of the portion 92 on the front of the bed and the head 91 is in the path of the. rear portion 93 of the bed. The dis tance between the

heads

90 and 91 is such that just prior to the bed reaching the forward vlimit of its-stroke it Will strike the head 90 and push the bar 84 forward, and just prior to the bed reaching the back end of its stroke it will strike the head 91 and the form beirfig-regulated by the adjustment I of the rack 51"uponthe bar. A

94is a block secured to the upper surface of the bar 84 adjacent to the

head

90,

and 95 is a latch pivoted at 96 to the side frame l, 'the latch being provided with a depending portion 97, whichis adapted to of the heads of the bolts 82, whereby the re- I drop in front of the front end of the

block

94, and 98 is a side portion which is bent the top of the side frame 1 and having its free end extending overthe body portion of the latch to force the same down in front of the block 94.

99 is a projecting cam faced nosecarried on the forward end of the bed adjacent to the abutting surface 92 and in position to pass under the edge of the latch 95 to raise the same before the abutting face 92 strikes the .head 90, whereby the bar 84 will be free to move forward upon the face 92 striking the head 90. The block 94 is of such a length that when the bar 84 has been moved forward the lower face of the latch will rest upon the top of the block and the latch will be prevented from dropping in front of the block until the bar has been moved to its rearward position by the portion 93 of the bed striking the head 91.

In order to raise the U-shaped frame 54 and consequently raise the upper feed roll 56 out of contact with the lower feed roll 61, during the return movement of the bed I mount upon the side of the frame 54 a depending arm 100, provided at its lower end with an antifriction roller 101, the roller being of such a width that it will extend over a port-ion of the bar 84 and the adjacent edge of the side of the bed 11.

102'is a spring connected at one end to the frame 54 and at the. other end to a bar 103 extending across between the side frames and secured thereto. The spring operates to draw the frame 54 down to bring the

rolls

56 and 61 into contact unless prevented by the lower end of the arm 100 being held in. raised position.

Mounted upon the bar 84 is a block 104 having its front edge beveled, the block being supported in position to pass under the roll 101. of the arm 100' when the bar 84 is drawn into its forward position but which will not be under the roll when the bar is in its rear position. From this it will be seen that when the bar is in its forward position, during the return stroke of the bed, the roll 56 will be raised. out of contact with the roll 61, and as the, front stops 65 are raised when the rolls are separated, they will be in posiwhich is providedwith an elongated. slot- .106 through which passes a set screw 107 and by means-of which the block maybe adjusted longitudinally of the bed. Thisblock is provided with a nose 108 on its rear end which is adapted to pass under the roll 101 of the arm 100 just before the bed reaches the limit 'of its backward stroke and consequently just before the block 104 is moved" out from under the arm. The feed roller 56' and the front stops will consequently not be forward, or from other cause, that it is not desirable to have the impression roller in contact with the type during the forward movement of the bed, I have provided a throw-off mechanism which will operate to move the bar 84 forward whenever the throw-ofl mechanism is-operated and .CQIISQ-I quently which will operate through the rack 51 to turn thejeccentric shaft 47 and raise the impression roll. 'This mechanism comprises a lever 109 provided with an elongated opening 110, through which passes a stud 111, the stud being secured to the side frame, whereby the lever is permitted to oseillate around the stud and may alsohave a short vertical movement. The lever is pro- 'vided' at its upper end with an operating handle 112 located in convenient positionv and within easy reach of the operator.

113 is an inclined slot cut in the side ofthe lever and adapted for engagement, when the lever is in its upper position, with a pin 114 carried by the side frame, whereby the lever will be held from'oscillation unless depressed to disengage the sl0t'113 from the pin 114. v i

115 is a spring secured at one end to the lower end of the lever.109 and at the other end to the side frame. 1. The point of attachment of the spring to the lever is below its point of attachment to the frame, so that the pull of thespring is in a direction to hold the lever raised and consequently the slot 113 ,in engagement with the. pin 114.

When, however, the handle 112 is depressed the pin 114, and the spring will operate to move the lever in a direction away from the of the machine.

116 is a bar pivoted at one end to the lever 109 and having its other end extending. over the "bar 84 with its end lying adjacent to the block 94 and just in the rear-of the latch 95. Upon the release of the lever from the pin 114, by deprcssing the handle, the pull of the spring will force the bar 116 forward under the latch 95, whereby it is raised from in front of the block 94, so that the bar 84 is unlocked and then the bar 116 will continue its forward movement until it strikes pin 114 and consequently toward the front 109 by striking the handle 112 to cause the ment.

spring 115 to operate to force the end of the bar 116 under the latch 95 against the head 90 and move the bar 84 to raise the impression roll, and also the upper feedroll and the front stops, consequently the bed will travel forward without the impression roll being in contact therewithand no sheet will be fed into the machine during such move ment. Upon turning back the lever 109 to its normal position, which is shown in the drawings, the parts will be returned to their normal position and upon the rear end of the bed striking the head 91 the machine can. continue to operate as before.

In order to cause the inking ribbon to be moved over the type after each printing stroke of the bed, I provide a pawl 117 at the rear of the frame and a similar pawl 118 at the front of the frame. Each of these pawls is cent-rally pivoted at 119 and their outer ends are formed into hooks 120 which are in position to engage the ratchets 121 carried by the ribbon rolls 26 and 27 As it is desirable to hold one of these pawls out of the path of movement of the ratchet rolls, in order to cause the ribbon to travel across the type and be fed from one roll to the other until it is all wound on one roll and then to reverse the movement of the ribbon and wind it back on the other roll, I pro-v vide a bar 122 which extends from the front to the rear of the machine, and is suitably guided by guides 123 for longitudinal move- At each end the bar is beveled, asshown at 124, and at the inner end of each bevel I provide a depression 125 into which the projecting lug 126 formed on the'inner ends of the pawls is adapted to enter. These depressions 125 are located at such a distance apart that'when one of the lugs 126 is inits depression the other lug will rest upon the top surface of the bar, thisv construction being best shown in Figs. 5 and 12. When a'lug 126 rests upon the top' of the bar the hook of the pawl carrying the lug is out of the path of the ratchet 121 of the ribbon spool, while when the lug of the. pawl is in its depression 125 the hook end 120 of that pawlis in the path of the ratchet .121. In order that the ribbon may not be fed when the throw-'ofl' mechanism is oper ated and also to hold the bar in either of its adjusted positions, I provide on the side of the bar 122 a plate 127, provided in 1ts 'loweredge with a pair of notches 128, with either of which a pin 129 onthe lever 109 may engage. The depths of these notches 128 is the forward stroke.

out" of printing position.

such that the depression of the lever 109 to pres'sion cylinder is thrown off. When it is desired to shift the ribbon feed, the lever 109 is moveddownward as far as possible when the pin 129 willbe moved out of engagement with the slot 128, so that the bar 122 can now be moved longitudinally and until the other slot 128 is in position to be engaged by the pin 129. This will operate to reverse the position of the pawls and throw the pawl which formerly was in opera'tive position outand the one formerly in, inoperative posltion into llne with its ratchet.

In the operation of my machine the sheets to be printed may be fed down into contact with the front stops duringthe rearward stroke of the bed, the impression roll at this time being out of contact witlnthe form. At the end of the stroke the bed strikes the head 91 and moves the bar '84 rearwardly which, as described, throws the impression roll down into position to make contact with the form as the-same passes thereunder during ever are still held out of contact because the block 108 is under the roll 101 of the arm 1001 As the bed starts forward the block moves out from under the arm 100, permitting the spring 102 to pull down the upper feed roll 56" into biting contact with the lower feed roll 61, whereby the sheet will be fed between the impression roller and the form. Upon the bed nearing the forward The feed rollers how end of its stroke and after the form has completely passed under the impression roller, the nose 99 passes under the latch 95,

raising the same from in front of the block 94,-unlocking the bar 84. The further forward movement of the bed-brings its end 92 into contactwith the head 90, drawing the bar 84 forward and operating through the .rack 51 to rotate the eccentric shaft 47 of the impression roller and throw the same This movement of-thebar 84 also forces the beveled block 104 under the end of the arm 100, raising the frame 54, the feed roll56 and the front stops 65. The cam 73, during the latter portion of the forward movement of the bed, operates through the lever 74 and the rack 7 6 and the gear 77 to oscillate the delivery frame 7 2 from the position shown in dotted lines Fig. 5 to the position shown I claim:

1. In a printing machine the combination with an impression roller and a reciprocating form-carrying bed, of means for reciprocating the bed and rotating the impression 5 roller, ribbon-carrying spools mounted on the bed, and said bed being provided with an openingintermediate of its ends through which the ribbon is adapted to pass, whereby said ribbon may be passed over a portion of said form through said opening and beneath another portion of the form.

2. In a printing machine the combination with an impression roller and a reciprocating form-carrying bed, of means for reciprocating thebed and rotating the impression roller, ribbon-carrying spools mounted on the bed, said bed being provided with an opening intermediate of its ends and intermediate of the ends of the form, whereby said ribbon may pass over a portion of said form only, and means for inking the portions of the form not inked by the ribbon.

3. In a machine for printing imitation typewritten letters and the like, in which the various portions of each letter are printed at a single impression, the combination with a form-carrying surface, of a form mounted thereon, said form being composed of two portions, means for passing an inking ribbon over one portion of said form, inking means forsupplymg ink to the other portion thereof and impression means co6p-' crating with said form.

4. In a machine for printing imitation typewritten letters and the like, in which the various portions of each letter are printed at a single impression, the combination with a form-carrying surface, of a form mounted thereon, said form being composed of a body 5.0 portion and two end portions, means for passing an inking ribbon over the body portion of the form, inking means forsupplying ink to the end portions thereof and impression means cooperating with said form.

5. The combination with a form-carrying surface, of a form mounted thereon, said form being provided with an opening intermediate its ends through which an inking ribbon is adapted to pass, whereby said ribbon may .jbe passed over a portion of said form and-through said opening, means for inking the portion of the form not inked by the ribbon, and impression means cooperating with said form.

6. The combination with a form-carrying ,with a rotary impression roller and a resurface, of a form mounted thereon, ribbon I carrying spools at the ends of the form, said form being composed of a body portion and two. end portions, means for guiding the ribbon beneath the two end portions and over the body portion, mechanism for supplying-ink'to the end portions, and impression means cooperating with said form.

7. In a printing press the combination with a flat bed, of a form supported thereon, said form comprising a portion adapted to print through a'ribbon and a portion adapted to carry ink upon its printing face, said latter portion being provided with a horizontal slot beneath its printing face,

ribbon carrying spools mounted at the ends of. the form whereby an inking ribbon may be passed through the horizontal slot'and then over that portion of the form adapted to print through the ribbon, means for sup- 5 plying ink to that portion ,of the ,form-beneat-h which the ribbon passes, and an impression surface cooperating with said form.

8. Ina printing machine the combination with an impression roller, and a reciprocating form carrying bed, of an ink supplying plate carried by the bed, a roller mounted on the frame of the machine and adapted to receive ink from the plate and transfer it to a portion of the form, and means for feeding an inking ribbon .over another portion of the form.

9. In a printing machine the combination ciprocating form-carrying bed, of means for reciprocating the bed, arack on the bed, a gear on the impression roller with which the rack is constantly in mesh, a bar slidably mounted on the frame of the machine and. extending longitudinally thereof adjacent to the path .of the bed, means carried by the bar and projecting into thepath of a portion of the bed whereby said bar may be moved longitudinally by the bed and means connecting the bar and impression roller whereby the latter is raised and lowered by the movement of the bar.

10. In a printing machine the combination with a reciprocating form-carrying bed, a rotary impression roller, means for driving 215 the bed. and means for driving the impression roller from the bed, of an eccentric shaft on which the impression roller is mounted, a bar slidably mounted on the frame of the machine and adapted to be moved longitudinally by the bed as it nears each end of its stroke, and gearing connecting the bar and the eccentric shaft.

- 1.1. In a printing machine the combina-' tion with a reciprocating bed and an impression roller driven by the bed, of sheet feeding means comprising a feed table, a pair of feed rolls and front stops in front 7 of the feed rolls, a longitudinally movable bar mounted adjacent to the path of the bed and adapted to be moved thereby, means tion with an impression roller, of a recipro-' eating-form carrying bed, ribbon carrying spools mounted on the ends of the bed, means for rotating the spools to feed the ribbon over the form, hand-operated means adapted to raise the impression roller out of contact with theform during the printing stroke and means operated by said hand operated means for rendering said spool rotating means inoperative when the impression roller is raised.

13. In a. printing machine the combina tion with a reciprocating form carrying bed, a rotary impression roller, means for driving the bed, and means for driving the impression roller from the bed, of an eccentric shaft on which the impression roller is mounted, a bar mounted on the frame of the machine and extending longi-' tudinally thereof adjacent to the path of the bed, a rack mounted on the bar, a gear on the eccentric shaft in mesh with the rack,

and means operated by the bed to move the bar longitudinally.

14. In a printing machine the combina tion with a reciprocating form-carrying bed, a rotary impression roller, means for driving the bed, and means for driving the impression roller from the .bed, of an eccentric shaft on which the impression roller is mounted, a bar mounted on the frame of the machine and extending longitudinally thereof adjacent to the path of the bed, a rack adjustably mounted on the bar, a gear on the eccentric shaft in mesh with the rack, and means operated by the bed to move the bar longitudinally to raise and lower the impression roller by the rotation of the eccentric shaft.

15. In a printing machine the combination with a reciprocating bed and a rotary impression roller driven by the bed, of a bar mounted on the frame of the machine and extending longitudinally thereof adjacent to the path of the bed, means op-' against movement, means carried by the bed to release the latch and means connecting the bar and impression roller whereby the latter is raised and lowered by the movement of the bar.

16. In a printing machine the combination with a reciprocating form carrying bed,

an impression-roller driven by the bed, and mounted on a shaft above the bed, of sheetfeeding means comprising a feedtable having its front edge-located adjacent to the line of contact between the form and the roller, a lower feed roll mounted in stationary bearings below the feed table, a

frame journaled on the shaft of the impression roller, an upper feed roll journaled 1n said "frame, gearing for drlvmg said upper roll from the impression roller,

and means operated by the bed for raising said upper feed roll out of contact with the lower one.

17. In a printing machine the combination with a reciprocating form-carrying bed, an impression roller driven by the bed and mounted ona shaft above the bed, of sheetfeeding means comprising a feed table having its front edge located adjacent to the line of contact between the form and the roller, a lower feed roll mounted in stationary bearings below the feed table, a

- frame journaled on the shaft of the impression roller, an upper feed roll journaled in said frame, gearing for driving said upper roll from the impression roller, and means operated by the bed for raising said upper feed roll out of contact with the lower one, -a front stop and means controlled by the movement of the upper feed roll to move it into and out of the-path of travel of the sheets to be printed.

18. In a printing press the combination with a frame of a fiat bedmounted therein, means for reciprocating said bed, a form mounted thereon, ribbon carrying spools mounted on the form carrier, a ratchet wheel connected to each spool, a pair of pawls on the frame, 'one mounted in the path of each ratchet and means to alternately throw one pawl out of the path of its ratchet and the other into the path of its ratchet.

In testimony whereof I afiix my signature in presence of twowitnesses.

C. A. MOBEAN, W; J. BELL.