US1220585A - Printing-machine. - Google Patents

Description

W. M. BACON.

PRINTING MACHINE.

APPLICATION FILED NOV. 6,1914.

1 ,220,585 Patented Mar. 27, 1917.

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PRINTING MACHINE.

v APPLICATION FILED NOV. 6 1914- 1,220,585. Patented Mar. 27,1917.

6 SHEETS-SHEET 2.

w. M. BACON.

PRINTING MACHINE.

APPLICATION FILED NOV. 6,1914.

1,22Q585 Patented Mar. 27, 1917,

6 SHEETS-SHEET 3.

W. M. BACON.

PRINTING MACHINE.

APPLICATION FILED NOV. 6. l9l4.

Patented Mar. 2?,1917.

6 SHEETS-SHEET 4.

W. M. BACON.

PRINTING MACHINE.

APPLICATlON FILED NOV. 6. 1914.

Patented Mar. 27, 1917.

6 SHEETS-SHEET 5.

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PRINTING MACHINE. APPLICATION FILED Nov. 6, 1914.

Patented Mar. 27 191?.

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WILLIAM M. BACON, OF ST. LOUIS, MISSOURI, ASSIGNOR TO HAMILTON-BACON SIGN COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF SOUTH DAKOTA.

PRINTING-MACHINE.

Specification of Letters Patent.

Patented Mar. 27, 1917.

Application filed November 6, 1914. Serial No. 870,559.

To all whom it may concern:

Be it known that I, VVILLIAM M. BACON, a citizen of the United States, residing at the city of St. Louis and State of Missouri, have invented a new and useful Printing- Machine, of which the following is a specification.

This invention relates to printing machines and more particularly to machines adapted to print with paint on wood, metal or fabric. I I

An object of the invention is to provide a machine comprising a form or type cylinder adapted to imprint uponmaterials of various thicknesses, carried by a work supporting bed or platen mounted in a reciprocating carriage.

Another object of the invention is to pro vide a. machine of the character mentioned equipped with means whereby the relative adjustment of the form or type cylinder and the work supporting bed or platen may be effected, in order that after the adjustment has been made the pressure of the form or type upon the impression receiving material may be uniform during successive printing operations, resulting in uniform impression upon all work of the same class and character.

Another object of the invention is toprovide in a machine of the character mentioned means for adjusting the work supporting bed or platen so that the pressure of the form or type on different parts of the surface of the impression receiving material, supported by the bed or platen, may be varied in order to meet the requirements of any class of work of a composite nature in which heavier impressions in some parts than in others is necessary toproduce a clear and sharp imprint from the composite form.

Another object of the invention is to equip a machine of the character mentioned with driving mechanism for reciprocating the carriage at an even speed and by which the power will be uniformly applied throughout the reciprocating operations of the carriage.

Another object of the invention is to equip a machine of the character mentioned with improved mechanism for automatically reversing the direction of travel. of the carriage at the end of each movement thereof, in combination with optionally adjustable mechanism for varying the extent of movement of the carriage to adapt the machine for imprinting upon material of different lengths.

Another object of the invention is to equip a machine of thecharacter mentioned with improved mechanism for automatically moving the impression receiving material into and out of contact with the printing form or type whereby the material is positioned to receive an impression when the carriage moves in one direction and to be removed from the type or form when the carriage moves in the opposite direction to permit the application of the printing fluid to the form or type during such movement of the carriage.

Another object of the invention is to equip a machine of the character mentioned with improved mechanism for automatically applying the printing fiuid to the form or yP Other objects and numerous advantages that are to be attained by the present invention will be apparent to those skilled in the art to which the invention appertains, from he following detailed description of a preferred embodiment thereof in which description reference is made to the accompanying drawings in which Figure 1 is a plan view of a machine embodying my invention the bed and the frame of the machine being broken and compressed, certain of the parts being shown in dotted line construction.

Fig. 2 is a transverse section through the machine substantially on the line Q2 of Fig, 1.

Fig. 3 is a rear end elevation of the machine.

Fig. 4 is'a side elevation showing the frame and bed of the machine broken and compressed as in Fig. 1.

p F i g. 5 is an enlarged fragmentary view to more clearly disclose the details of construction of the mechanism for applying the printing fluid.

Fig. 6 is a fragmentary detail view more clearly illustrating a portion of the mechaiism for reciprocating the carriage.

Fig. 7 is a detailed view illustrating certain parts of the mechanism for adjusting the work supporting bed or platen.

Fig. 8 is a detailed view illustrating particularly parts of the mechanism for raising and lowering the work supporting bed or platen.

Fig. 9 is a longitudinal section through the machine.

Fig. 10 is a horizontal section taken substantially on the line 10-10 of Fig. 5 further illustrating certain additional details of construction of certain of the parts comprised in the mechanism for applying the printing fluid.

Figs. 11 and 12 are detail views of elements included in the mechanism for applying the printing fluid.

As shown in the embodiment of the invention illustrated in the drawings the frame of the machine comprises side members 1 formed of I-beams supported by transverse end legs 2,-to which the lower face of the beams are secured by bolting the same thereto. A central base portion 3 provides additional supporting means for the side members. The base member 3 extends transversely of approximately the center of the machine and projects at either side of the machine beyond the side members. At either side of the machine and bolted to the base member 3 are side plates or standards 4.

On the upper face of the side members 1 are mounted a plurality of equally spaced brackets 5. In the series of brackets on one side of the machine are revolubly supported rollers 6 and upon the other side of the machine the brackets revolubly support rollers 7. The rollers 6 differ from the rollers 7 in that the peripheries of the rollers 6 are continuous while in the peripheries of the rollers 7 are formed grooves 8 having inwardly inclined side walls. The carriage of the machine is adapted to rest upon said rollers upon which it rides, being reciprocated by mechanism hereinafter described. The carriage comprises side members 9 in the form of channel irons, the channels facing inwardly toward the center of the machine, and end plates 10 bolted to said side members transversely thereof at either end of the carriage. To the under face of one of the side members 9 is secured a rail 11 which rests upon rollers 6 and to the lower face of the other side member is secured a rail 12 which is projected at its under face to form a tongue adapted to seat in the grooves formed in the rollers 7. To the upper face of each of the side members 9 is bolted an angle plate 13 having its vertical face in the same plane with the inner edge of the side members.

The work supporting bed or platen comprises a rectangular frame A, upon which the bed plate is mounted, and a rectangular frame B. The frame A is composed of side members 1st and end members 15 formed of angle irons, the upper horizontal legs of which project outwardly, said frame being braced by a series of ribs 16. The bed plate 17 is bolted to the upper face of said frame and said ribs. The bed plate may be of metal orwood, it of course being understood that if wood is utilized it may be constructed of a plurality of transversely disposed planks surfaced off to form a plain and smooth horizontal upper face. The frame B is of the same exterior dimensions as the frame A and comprises side plates 18 and end plates 19, composed of angle irons having their lower horizontal legs projecting inwardly. The vertical faces of the frames A and B are in the same plane. The frames A and B are of such dimensions exteriorly that they fit within the carriage frame composed of the side members 9 and the end plates'lO and are vertically movable with respect thereto.

The mechanism for effecting the relative adjustment of the carriage frame and the platen frame comprises a series of cams 20 which are disposed on transverse shafts 21 journaled transversely of the carriage frame in journal boxes carried by the side members 9 of the carriage frame. The shafts 21 are conjointly rocked by mechanism that will be more fully described hereinafter. By reference to Fig. 9 of the drawing the disposal of the cams 20 on one side of the machine is clearly shown. For the present it will be sufiicient to suggest that when the cams 20 are in the position shown in Fig. 9 the platen frame is in its lowest adjustment and that when the shafts 21 are rocked the platen frame will be moved upwardly with respect to the carriage frame, by the projecting faces of the cams.

The two frames A and B are relatively adjustable and the mechanism for effecting this relative adjustment of the frames A and B comprises a series of jack screws 22, the

lower ends of which are swiveled in sockets 23 formed in brackets 24:. The brackets 2a are supported by the side members 18 of the frame B and are disposed at equal intervals lengthwise of the frame. The upper ends of the jack screws 22 operate in threaded sockets formed in blocks 25 which are secured at suitable intervals to the interior of the side members 14: of the frame A. Each of the jack screws 22 is arranged to be independently operated for which purpose are provided worms 26 which are adapted to cooperate with pinions 27, carried by the jack screws 22. The worms 26 are formed on a series of shafts which, for the purpose of i compactness, are arranged so that a shaft 28 will fit in a hollow shaft 29. There are in the embodiment shown four sets of shafts arranged to project through slots in the end plates of the carriage frame adjacent to either side are a plurality of spokes 69 which support annular rims 70, upon which the outer annular wall 71 of the form or type cylinder is mounted. The wall of the type cylinder is preferably composed of a plu rality of surface planks, although it will be understood that it may be of other construction if desired. The shaft 68 extends be yond one of the standards 4 at one side of the machine and has rigidly secured thereto a large gear wheel 72, which is adapted to be driven by a train of gearing, comprising a gear wheel 73 journaled in a bearing at the side of the machine, which gear 73 meshes with small gears 74 which in turn are meshed with a gear 75 fast on a countershaft 76 which extends through the frame of the ma- .chlne and to the inner end of which 1s secured a gear wheel 7 7 Thegear wheel 77 is in mesh with a rack 7 8 which is formed on a plate 79 secured to one of the side members 9 of the carriage. Thus it will be apparent that as the carriage is reciprocated the train of gearing just described will be actuated, first in one direction and then in the other, as the rack 78 rides over the face of the gear 77 in the direction of the travel of the carriage.

The work supporting bed or platen is moved into and out of contact with the form or type supported by the cylinder by means of the cams 20 as hereinbefore stated. The cams are operated by the rocking of the shafts 21 through the train of mechanism now about to be described. Each of the shafts 21 has secured thereto arms 80 the free ends of which are cooperatively connected by means of links 81. The shafts 21 that are located adjacent to the respective ends of the machine, carry depending levers 82 and 83,1'espeotively. The levers 82 are adapted to contact with abutment members 84 and the levers 83 are adapted to cooperate with abutment members 85. The abutment members 84 and 85 are adapted to be adjustably secured to the inner face of the side members 9 of the frame of the machine.

'When the carriage moves in the direction so that when the carriage starts its travel in the opposit direction the platen or .bed will be coincidentally raised and will be maintained in its raised position until the arms 83 make contact with the abutment members 85, at which time the cams will be depressed and restored to the position shown in Fig. 9 of the drawings and the power mechanism will again be coincidentally reversed.

The mechanism for applying the printing fluid to the form or type comprises a printing fluid roller 86 supported on a shaft 87 which is journaled between two pivoted arms 88. Below the printing fluid roll and like wise supported between the pivoted arms 88 is a printing fluid trough or fountain 89. Above the roller 86 and journaled in extensions 90 of the arms 88 is arranged a composition roller 96 adapted to contact with the roller 86 for the purpose of spreading and equalizing the printing fluid on said roller '86. The roller 96 is provided with adjust able tension bearings 91 whereby the pressure of the roller 96 upon the periphery of the roller 86 may be regulated. The shaft 87 extends through one of the arms 88 and has rigidly secured thereto a gear wheel 92 which meshes with a gear wheel 93 revolubly mounted on a short shaft 94, which also constitutes a fulcrum for the arm 88 at one side of the frame, the arm 88 on the other side of the frame being pivoted to a short stud alined with the shaft 94. The gear wheel 93 is adapted to mesh with a gear wheel 97 which is loosely mounted on a shaft 98, which extends through a bearing 99 formed in a bracket supported upon the top face of one of the side plates or standards 4. The shaft 98 has fixed to its outer end a gear wheel 100. The gear wheel 100 meshes with the large gear wheel cylinder. The gear wheel 97 is adapted to be locked to revolve with the shaft 98 when which is keyed to the shaft 98. This pawl and ratchet construction is clearly shown in Figs. 11 and 12 of the drawings.

The mechanism for moving the roller 86 into and out of contact with the form cylinder comprises a bell crank lever 104 pivoted at each side of the machine adjacent to each end of the shaft 47. An arm of each of the bell crank levers 104 is connected, respectively, with the lower end of one of the swinging arms 88 by a link 105. The shaft 47 carries at each extremity thereof a cam 106 adapted to cooperate with the bell crank levers 104 to swing the arms 88 and thereby alternately move the roller 86 into and out of contact with the cylinder. The shaft 47 is rocked in the manner heretofore described, it being understood that, when the high face of the cam 106 raises the arm of the bell crank lever 104, the arms 88 being connected thereto by the link 105, will be swung so as 72 of the form or type i.

each corner thereof. The projecting ends of the shaft are fitted with hand wheels 30. The arrangement of the shafts is clearly shown in detail in Fig. 7 from which it will be noted that the hollow shafts 29 extend to the nearest adjacent jack screw and that the worm 26 carried on said shaft 29 meshes with the corresponding pinion carried by the jack screw, the shafts 28 extending beyond the shafts 29 to the inner series of jack screws. The shafts are journaled in the brackets 24.

By means of the above described mechanism it will be apparent that the relative adjustment of the frames A and B may be controlled from a number of points, so that the pressure of the form or type on different parts of the surface of the impression receiving material supported by the bed may be varied, in order to meet the requirements -of any class of work of a composite nature in which heavier impressions in some parts than others are necessary in order to produce a sharp imprint from the composite form, and that such adjustment may be readily effected by the manipulation of the hand wheel 30.

The mechanism for reciprocating the car riage comprises a drive shaft 31 journaled in bearings at the side of the machine and disposed longitudinally thereof. The bearings for the shaft 31 are preferably supported by a platform 32 cast integral with the central base portion 3. The shaft 31 is equipped with drive pulleys 33 which are arranged to be driven in reverse directions from a drive shaft 3 1- driven by a motor M through belt connections 35. The pulleys 33 are adapted to be alternately operatively connected with the shaft 31 by means of a clutch device 36 which is operated by a lever 37. The lever 37 is automatically controlled so as to reverse the direction of rotation of the shaft 31 at the limit of movement in either direction of the carriage by alternately engaging the shaft 31 with one or the other of the pulleys 33. The mechanism for operating the lever 37 and thereby the clutch device, comprises a rod 38 operatively connected to the inner end of the lever 37 at one end and operatively engaged with a vertical lever 39, which is secured to a transverse shaft 40 which is ournaled in brackets supported by side members 1 of the frame of the machine. The lever 39 is equipped at its lower end with a bifurcated extension 41, the arms of which embrace the rod 38 between collars 42 slidably mounted upon said rod 38. Cooperating with each of the collars 42 is an expansion spring 13 which abuts against a collar 44 rigidly secured to the rod 38. Thus it will be apparent that when the collars 4-2 are respectively moved toward the collars 14: by the rocking of the lever '39 the springs 413 will be compressed and pull or push the rod 38 thereby swinging the lever 39 to operate the clutch correspondingly. The mechanism for rocking the shaft s10 and thereby throwing the lever 39 in first one and then the other direction,

comprises upwardly extending levers 4L5 and 46, said levers being respectively secured to the shaft 10 and a shaft 47 disposed parallel thereto. The shafts 10 and 17 are operatively connected by arms 48 arranged parallel one with the other depending from said shafts and connected at their lowerv ends by a link 19. Cooperating with the arms a5 and 16 respectively are adjustable collars 50 and 51 mounted on rods 52 and 53, respectively, said rods being mounted in the lower part of the carriage frame in which they are longitudinally disposed adjacent respec: tively to the arms 4L5 and 16. When the carriage is moved in the direction of the arrow 5 1 the collar 51 approaches the arm a6 and is adapted to-engage therewith, thereby rocking the shaft 47 which through the connection comprising the arms 18 and the link 19 rocks the shaft 40, thereby swinging the lever 39 effectively to operate the clutch to reverse the rotation of the shaft 31. Similarly when the movement of the carriage has been reversed and the carriage moves in the direction of the arrow 55, the collar 50 will make contact with the arm 15 thereby swinging the lever 39 in the opposite direction again reversing the position of the clutch and thereby the direction of rotation of the shaft 31.

As the collars 50 and 51 are adjustable respectively on the rods 52 and 53 the extent of movement of the carriage may be predetermined and, therefore, the length of the stroke of the carriage may be optionally adjusted at the will of the operator.

The shaft 31 is equipped at its inner end with a worm 56 which is adapted to mesh with a gear wheel 57 secured to a shaft 58. The shaft 58 extends transversely of the machine and has hearings in standards or brackets 59 supported by the base member Between the brackets 59 and secured to the shaft 58 is a drum (30 over which is wound a cable 61 the ends of which extend respectively over and under sheaves 62, which are loosely mounted, respectively, on shafts 63 supported at either side of the drum in the brackets 59 the ends of the cable being secured, respectively, to the opposite ends of the carriage frame by means of tensioning connections 64. I prefer to incase the worm 56 and the gear 57 in a housing 5 and to provide a journal box 66 in the side of the machine to assist in supporting the shaft 58.

The type or form cylinder comprises hub members 67, fixed to a shaft 68 which is journaled in the upper part of the standards Radiating from the hub members 67 at psi to bring the roller 86 into contact with the cylinder and will be retained in that position until the shaft 47 is again rocked at the end of the stroke of'the carriage, whereupon the cam will be depressed releasing the arm of the bell crank lever 104, thereby permitting the arms 88 to swing outwardly from the cylinder and carry the roller 86 out of contact with the cylinder by gravity, it being understood that the weight of the parts carried by the upper ends of the arms 88 will effect this movement.

From the foregoing it will be understood that the operation of the machine is briefly as follows:

Assuming that the carriage of the machine is moving in the direction of the arrow 55, the parts will be in the adjustment shown throughout the views of the drawings. The carriage will continue to move in the direction indicated until the collar 50 contacts with the arm 45, thereby rocking the shafts 40 and 47. This movement of the shafts 40 and 47 depresses the roller 86 and also moves the arm 39 into contact with the collar 42 adjacent to the extremity of the rod 38, thereby compressing the, spring 43 against the collar 44 throwing the arm 37 to reverse the adjustment of the clutch mechanism thereby reversing the direction of the movement of the carriage. Simultaneously with the throwing of the clutch mechanism the arms 82 make contact with the abutment members 84 and the work supporting bed or platen is raised in the carriage into contact with the type or form cylinder, and is maintained in such position until the carriage has traveled in the reverse direction a sufficient distance to bring the collar 51 into contact with the arm 46, thereby rocking the shafts 40 and 47 in the opposite direc tion restoring the roller 86 and its associated parts to the position shown in the drawings, again swinging the arm 39 into contact with the inner one of the collars 42 compressing the corresponding spring 43 against its associated collar 44 whereby, through the rod 38 and the lever 37, the adjustment of the clutch mechanism is reversed again driving the carriage in the direction of the arrow 55. Simultaneously with the reverse of the power mechanism the arms 83 make contact with the abutment members 85 and the work supporting bed or platen is depressed in the carriage and moved out of contact with the type or form cylinder. It will be noted that the adjustment of the parts is such that the movement of the roller 86 into and out of contact with the type or form cylinder is effected slightly in advance of the reversal of the carriage, and of the raising or lowering of the work supporting bed or platen.

It will be understood that numerous changes in the details of construction may be made without departing from the scope of the invention. I do not desire to limit myself, therefore, to the exact construction shown and described, but what I claim and desire tosecure by Letters Patent is:

1. In a printing machine, the combination with a frame, a carriage mounted to reciprocate in a horizontal plane in said frame, a movable platen mounted in the carriage and adapted to be raised and lowered therein, a form cylinder supported in the frame and adapted to rotate above the platen, a fluid applying roller movable into and out of contact with the form cylinder, mechanism for reciprocating the carriage andfor rotating the cylinder in unison, mechanism for moving the roller into contact with the cylinder when the carriage moves in one direction and out of contact with the cylinder when the carriage moves in the opposite di rection, and means whereby the platen is elevated when the carriage moves in one direction and is depressed when the carriage moves in the opposite direction.

2. In a printing machine, the combination with a frame, a carriage mounted to reciprocate in a horizontal plane in the frame, a form cylinder journaled in said frame above the carriage and adapted to be rotated in opposite directions in conformity with the movement of the carriage, a platen mounted in the carriage, means for moving the platen into contact with the form cylinder when the carriage moves in one direction and out of contact with the form cylinder when the carriage moves in the opposite direction, a fluid applying roller adapted to move into and out of contact with the form cylinder, and mechanism for moving said fluid ap plying roller into contact with the form cylinder during the movement of the carriage in one direction and out of contact with the form cylinder during the movement of the carriage in the opposite direction.

3. In a printing machine, the combination with a main frame, a carriage mounted in said frame and adapted to reciprocate thereon, a platen supported by said carriage, a form cylinder mounted in said frame and adapted to rotate above said platen, power mechanism for reciprocating said carriage, mechanism entraining said carriage and said form cylinder, automatic devices under the control of said carriage for reversing said power mechanism and automatic devices for alternately raising and lowering said platen, substantially as specified.

4. In a printing machine, the combination of a main frame, standards supported by said frame at each side thereof, a form cylinder journaled in said standards, a reciprocating carriage mounted in said frame below said form cylinder, a vertically adjustable platen mounted in said carriage, power mechanism entrained with and adapted to reciprocate said carriage, adjustable devices for controlling said power mechanism, and automatic devices under the control of said carriage for effecting the adjustment of said platen, substantially as specified.

In a printing machine, the combination with a main frame, a series of rollers supported by said frame, a carriage, rails formed 011 said carriage adapted to ride upon said rollers, a power driven shaft, flexible connections between said shaft and said carriage, power mechanism for driving said shaft and mechanism under the control of said carriage whereby said power mechanism is caused to impart to said shaft an alternating reciprocating motion, substantially as specified.

6. A printing machine, the combination with a main frame, a reciprocating carriage mounted therein, a form cylinder rotatably supported above said carriage, a fluid applying roller movable into and out of contact with said form cylinder, of atrain of gearing adapted to rotate said fluid apply'- ing roller entrained with saidcarriage, and a clutch device associated with said train of gearing for effecting the operative, connection between said roller when the carriage moves in one direction and to release the operative connectionbetween said roller and said carriage when said carriagemoves in the opposite direction, substantially as specified;

7. In a printing machine, a carriage, a platen vertically movable in said carriage and a form cylinder adapted to rotate above said platen, of: a. series of cams interposed betweensaid carriage and said platen, shafts for operating said cams, trip mechanism under the control of said carriage operatively connected to said. shafts for rocking the same and thereby adjusting said cams to raise and lower said platen, and adj ustable abuti'nents for operating said trip mechanism, substantially as specified.

8. In a printing machine, a carriage, a platen comprising an upper and a lower frame mounted in saidcarriage and a work supporting bed mounted on said upper frame, adjustable devices interposed between said frames, independently manipulative devices for operating'said adjustable devices to effect relative adjustment of said. frames and thereby a surface adjustment of said work supporting bed, and means for raising and; lowering said platenin said carriage, substantially as specified.

9; In a printing machine, a carriage, a platen. comprising an upper and. a lower frame, said upper frame having a work supporting bed, adjustable connections between said platen and said carriage, jack screws interposed between said frames, independently manipulative devices for operating said. jack screws to effect relative adjustment of said frames and thereby the surface adjustment of said Work supporting bed, and automatic means for ad usting the connections betweenthe platen and the carriage,

cated therein, a power shaft, means for imparting to said powershaft analternating rotary motion, a drum supported by said power shaft, a cable wound upon saiddrum and terminating in eachv end of said carriage, respectively, laterally movable guide sheaves for said cable and power mechanism for driving said power-shaft, substantially as specified.

11. Ina printing machine, the combination with a main frame, and a carriage adapted to reciprocate therein, of a; power shaft, a motor, a reversible clutch; mechaw nisni for driving said. shaft in either direction from said motor, a transverse trans mission shaft journaled to rotate-below said carriage, a gear connection between: said power shaft and said transmission shaft, a drum on said transmission shaft, a cable adapted to operate on said drum-connected to said carriage at each end thereof, and mechanism under the control; of" said carriage for operating'said clutch mechanism.

12. In a printing machine, the combination-with a main frame,a carriage mounted in said frame and adapted to be reciprocated longitudinally thereof and in a fixed horizontal plane, a movable member in said carriage having a work supporting bed, a type cylinder mounted upon a fixed axis journaled in said frame vandal-ranged tooperate above'the work supporting bed, aprime mover, driving mechanism operated by said prime mo-verfor reciprocating the said carriage and for imparting tosai d'cylinder an alternatingrotary movement, and automatic devices operable to raise and lower said movable element in said carriage, substantially as specified.

13. Ina printing machine, thecombination with a main frame, a carriage mounted in said frame and adapted to be recipro: cated longitudinally thereof in a; fixedhorizontal plane, amovable element mounted in said carriage having a horizontalwork supporting bed, a form cylinder mounted to rotate in said frame above said Work supporting bed, an inking roller adapted to move intoand out of contact with said form cylinder, a prime mover, and driving.- mechanism operated by said prime mover operable effectively to reciprocate said carriage to impart an alternating rotary movement to said form cylinder and to move said inking roller into and outof contact with said form cylinder, substantially as specified.

14. In a printing machine, the combination with a main frame, a carriage supported by said. main frame and adapted to be reciprocated longitudinally thereof in a fixed horizontal plane, a movable platen supported bv said carriage, a form cylinder mounted in said frame and adapted to rotate above said platen, power mechanism for reciprocating said carriage, operative connections between said carriage and said form cylinder whereby an alternating rotary movement is imparted to said form cylinder as said carriage is reciprocated, automatic devices under control of said carriage for reversing said power mechanism, and automatic devices whereby said platen and said form cylinder are moved into and out of contact with each other, substantially as specified.

15. In a printing machine, the combination with a main frame, a carriage mounted in said frame and adapted to reciprocate longitudinally thereof, a form cylinder r0- tatably mounted in said frame above said carriage, a fluid applying roller movable into and out of contact with said form cylinder, a reversible driving mechanism for said carriage adapted to reciprocate the same in said frame, connections between said carriage and said fluid applying roller operable effectively to apply the printing fluid to said form cylinder when the carriage moves in one direction and to retract said roller from said form cylinder when said carriage moves in the opposite direction, substantially as specified.

16. In a printing machine, a form cylinder, a work supporting platen, a carriage wherein said platen is mounted, mechanism for reciprocating said platen beneath said form cylinder, adjustable devices for reversing the movement of said carriage, and adjustable automatic devices for bringing the surface of said form cylinder and said platen into and out of contact with each other, substantially as specified.

17. In a printing machine, a main frame, uprights in said frame, a form cylinder having fixed bearings in said uprights, a reciprocating carriage mounted below said form cylinder in said frame, a movable element in said carriage having a work supporting bed, driving mechanism for reciprocating said carriage, adjustable devices for reversing said driving mechanism, mechanism for raising and lowering said movable element in said carriage, and adjustable devices for controlling the mechanism for raising and lowering said movable element, substantially as specified.

18. In a printing machine, a main frame, uprights on said frame, a cylinder journaled in said uprigliits and extending transversely of the frame, a reciprocating carriage adapted to be moved from end to end of the frame below said cylinder, a movable element in said carriage having a horizontal bed, driving connections for moving said carriage from end to end of said frame, mechanism for raising and lowering said movable ele ment in said carriage, and adjustable devices for limiting the stroke of the carriage and for controlling the mechanism for raising and lowering said movable element, substantially as specified.

19. In a printing machine, a cylinder, a carriage adapted to reciprocate below the cylinder, a movable element in said carriage having a horizontal bed, mechanism for reciprocating said carriage beneath the cylinder, means for limiting the stroke of the carriage, and adjustable automatic devices for moving said movable element toward andaway from said cylinder.

20. In a printing machine, the combination with a main frame having uprights attached thereto, and a cylinder journalecl in said uprights extending transversely of the frame, of a reciprocating carriage adapted to be reciprocated from end to end of the frame below the cylinder, a movable element in said carriage having a horizontal work supporting bed, driving connections for reciprocating the carriage, mechanism for raising and lowering the movable element in said carriage, and adjustable devices for reversing the driving connections and for controlling the mechanism for raising and lowering the movable element, substantially as specified.

In witness whereof, I have signed this specification in the presence of two subscribing witnesses.

WILLIAM M. BACON.

Witnesses: 4 L. C. KINGsLAND, R. M. LAWRENCE.

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

Washington, D. G.

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