US637604A - Press. - Google Patents

Description

Patented Nov. 2|, I899. E. HETT.

P R E S S (Application filed Jan. 1

4 Sheets-Sheet I.

(No Model.)

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Patented Nov. 2!, I899.

4 Sheets-Shaet 2.

E. HETT.

PRESS.

(Application filed Jan. 5, 1899.)

(No Model.)

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(Application filed Jan. 5, 1899.)

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(Application filed Jan. 5, 1899;)

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(No Model.)

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' SPECIFICATION forming part of Letters Patent No. 637,604, dated November 21, 1899.

Application filed January 5, 1899. V Serial No. 701,19 (No model.)

To all whom it may concern:

Be it known that I, EDWARD HETT, of New York, (New Dorp,) in the county of Richmond and State of New York, have invented a new and useful Improvement in Presses, of which the following'is a specification.

My invention relates to printing and transfer presses.

It has for its object to improve and simplify the means for handling printing-cylinders or printing-tubes or supports therefor, particularly in connection with their introduction into and removal from operative position'in the press, to enable such handling means to The preferred form of my invention, which is shown in the drawings herein, is shown in connection with a m ulticolor-printing press, although obviously my'invention can be used with any kind of printing or transfer process in which one or more printing-cylinders,tubes, or supports therefor are used.

In the accompanying drawings, which form a part hereof, and which show the preferred form of my improved device, and in which the same reference characters in the different views refer to corresponding parts, Figure 1 is a vertical section through a multicolorpress embodying one form of my invention, the section being taken at right angles .to the axis of the impression-drum. Fig. 2 is a longitudinal vertical section in the plane of the axis of the impression-drum. Fig. 3 is a side elevation of the press, viewed as shown by the arrow in Fig. 2, with the removing standard omitted. Figs. 4 and 5 are detailed sectional views showing a carrierarm and its support and connecting mechanism, and Figs. 6, 7, and 8 are detailed views of the pressure devices.

Heretofore in inserting printing-cylinders, tubes, or supports therefor into their places in a press or in removing them therefrom it has been necessary either to do this work entirely by hand or by means of handling devices exterior to the press-such, for example, as the movable carriage mounted upon rails shown and described in certain earlier applications of mine. As such printing-cylinders, tubes, or supports therefor are generally of great size and weight, their introduction into the press and removal therefrom by hand involve great labor and a considerable expenditure of time and money. Exterior devices for handling cylinders and the like cannot always be employed by reason of lack of space or for other causes, and they are, moreover, themselves cumbrous and heavy, occupy a large amount of space, and are expensive to construct. In my improved devices I use carrier-arms for carrying printing-cylinders, tubes, or supports therefor to their proper places in the press or for carrying them from their places in the press to a suitable and convenient place of delivery, from whence they may be removed. The carrier-arms are mounted centrally in the press in or upon suitable supports and are adapted to have a revolving motion relative tothe press and also to have a radial movement, by means of which combined movements the carrier-arms may be moved to any required position in the press, so as to carry a printingcylinder, tube, or support therefor to any desired position in the press or to remove it from such position to any convenient delivery-point. In the preferred form of my device I mount the carrier-arms in supports which are adapted to revolve around the shaft of the press, thus imparting a revolving motion to the carrier-arms, and the carrier-arms and supports are so constructed and arranged that the carrier-arms are free to move longitudinally in the supports, thus imparting to the carrier-arms a radial movement relative to the press.

My improved devices forhandling printingcylinders, tubes, or supports therefor are those contained within the body of the press itself. They dispense with the necessity of the manual work of inserting and, removing them,.and they dispense with the necessity of using any exterior handling device. My improved devices, moreover, are simple and compact in construction, efficient in operation, and are easily operated and controlled.

My improved devices are shown in connection with a sheet-printing press. It is obvious that they are applicable to a press in which a continuous web is employed.

Referring to the specific forms of apparatus shown in the drawings, 1 indicates .the

frame of a multicolor sheet-printing press, of which 2 is the impression-drum. 3 3-are printing-cylinders in position in the press. 414 are the inking-frames carrying theusual ink-rollers, and 5 5-the dampening-frames .carrying the usual dampening-rollers of a lithograph-press. Connected with the ,inking-rollers are the ink-fountains 6, ink-fountainjrollers, 7, and ink-daubers 8. As .the

inking and dampening mechanisms arelof' thekind usually employed in similar. presses andsas their construction forms no part-0f the present invention, they will not 'be further described.

The printing-surfaces-may be of anysuitable form or construction. As shown, they are .cylindricaha'nd consist of an exterior hol- -low printing tube or shell 9, mounted upon large: drum having a number of impression surfaces 12, arranged to make contact; at the .propertimes with thedifferent printing-surfaces, with intervening depressed places .13

andsuitablegrippers 14 14. for seizing the sheets of paper, as the same come from :the feeding-table 15 and for carryingthem around the surface of the impression-drum. .The sheets after passing around the impressiondrum are seized by grippers 16, mounted upon --wheel;17, and are carried by the wheel to endless tapes 18 and 19, which pin itbetween them and deliver it;at the right hand of the 'machine, 'asshownin Fig. 1.

The devices for squaring the sheet, soas to' fit it properly to the press, the devices for driving the impression-drum, printing-cylinders, endless delivery-tapes,- and their operating wheels and rollers, and the devices for actuating the dampening and inking mechanisms-are .thesame as thoseusuallyem- 'ployed in sheet-presses of the character of: the oneshown herein, and asthese devices form no part ofmy present-invention they are not moved.

As constructed printing-- shown infull detail and will not be further described.

I will now proceed to describe my improved devices for handling printing cylinders, tubes, or supports therefor as the same are shown in the drawings.

20 are carrier-arms for grasping, holding, and carrying printing-cylinders,tubes, orsupports -therefor. For this purpose they are provided atone end with clamping devices which consist of a fixed part 21 and a swinging part .22, pivoted to the "fixed'part, two parts being cut out, so that when brought together, as in'Fig. 5, they are adapted to hold the end of the shaft of a printing-cylinder, tube, or support. The parts are locked together by means .of a screw'bolt and nut 23. For the purpose of inserting in or removing from thecarrying-arms the shaft of. aprinting-cylinder and the like part 22 is unlocked and swung down. If this will not permitthe printing-cylinder, tube, or supportto be removed from the carrier-arms, the entire end of one or-both of the carrier-arms can here.

For this purpose I preferably construct a carrier-arm with a removable head, as shown in Fig. 5, the head part consisting of the portions 21 and22. a cylindrical opening 25 in the body of'the carrier-arm and a similar cylindrical cavity in the head. Bymeans of set-screws 26 26 .the parts can be firmly secured together to form: one integral structure, Fig. 5. By unloosening the set-screws the head part of the carrier-arm can be removed, the rod 24: can he slipped. back into orifice 25,'and the printing-cylinder, tube, or support therefor be re- 'moved from the carrier-arms. Where hollow external printing-tubes and hollow forms orsupports therefor mounted on the shaftand removable therefromare used,.as shown in the drawings, the printing-tube or support ,therefor is removed from the carrier-arms to a receiving-standard 27 or are taken from 'suchsaid standard and transferred to the car- .-'rier.-arms in a manner presently to be .described.

The'carrier-arms are mounted insupports '28. These supports 28 are providedwith a cylindrical-opening 29, adapted to receive thescrew-threaded portion 30 of the: carrierarm 20. Supports 28 are keyed to a sleeve 31, loosely mountedaround the main shaft of the press. Sleeve 31 carries also a worm-wheel 32. Support'28 also has an arm 33, with an opening through which a carrier also projects. Between the. sleeve portion 29 of the support andithe arm 33 there is placed a sleeve 34, in- .teriorlyscrew-threaded and carrying on-its outer face a beveled gear-wheel 35. The

screw-th readed portion 30 of the carrierearm 20 is adapted to project through the cylindrical openingsiin sleeves29 and 34 and arm 33. Sleeve 34, .with its beveled gear-wheel 35, is free-to rotate between sleeve 29and arm 33, =butiswithheld from longitudinal motion by means ofthe "sleeve and arm, which act as A pin 24 fits into' stops. It therefore acts as a nut, and when it revolves by reason of its interior screwthreads and the exterior screw-threads upon carrier-arm 20 it imparts motion to carrierarm 20 through sleeves 29 and 34 and arm 33 in one direction or the other, depending upon the direction of the rotation of sleeve 33 and beveled gear 35.

Supports 28 are free to revolve in one direction or the other around the main shaft 36 of the press. They are driven one way or the other by mechanism presently to be described. This revolution of the supports around the shaft of the press gives a revolving motion to the carrier-arms and brings the gripper ends of the arms into radial line with the shafts of any of the printing-cylinders in the press that it may be desired to remove or into a radial line with any position where it is desired to insert the printing-cylinder, tube, or support. The means shown in the drawings for giving this revolving motion to the supports, and hence to the arms, is as follows: A worm 37 on each side of the machine meshes with each worm-wheel 32, as shown in Fig. 4. These worms are each mounted upon a shaft 38, which carries at its other end a beveled gear 39. The beveled gears 39 mesh each with a beveled gear 40 on shaft 41, which runs across the entire press. At the right-hand end of shaft 41, as vieved in Fig. 2, the beveled gear 40 at that end meshes with the beveled gear 42 on the shaft 43. The shaft 43 can be driven from any suitable source of power. I prefer to drive it from a controlling-engine such as is shown and described in my application for a patent filed on the 8th day of September, 1898, known as Serial No. 690,480, for controlling-engines for presses, as in such a case the movements of the parts driven by the shaft 43 can be easily and accurately controlled by an operator. Through worm 37 and its driving mechanism and worm-wheel 32 sleeves 31 and supports 28 can be revolved at pleasure in either direction around shaft 36, thus revolving the carrier-arms and bringing them into any radial line desired.

The carrier-arms are moved back and forth longitudinally in supports 28, so as to move the arms radially outward orinward relative to the shaft of the press, by means of the following-described mechanism, as shown in the drawings herein: Loosely mounted upon' sleeve 31 is a sleeve 44, adapted to freely rotate around sleeve 31. Sleeve 44 carries a spiral gear-wheel 45 and a worm-wheel 46 secured to it. Sleeve 44 is adapted to rotate freely upon sleeve 31. Worm-wheel 46 is driven by worm 47 on shaft 48. There is a worm 47, mounted on shaft 48, on each side of the press meshing with each worm-wheel 46. At the other end of each shaft 48 is a beveled gear 49. Beveled gears 49 mesh with beveled gears 50, placed at both ends of shaft 51. Shaft 51 is driven by shaft 52 through a beveled gear-wheel 53,which also meshes with one of the beveled gear-wheels 50. Shaft 52 may be driven from any suitable source of power. I prefer to drive it from a controllingengine in the same manner as shaft 43 is driven and for the same reason. By means of worm 47, driven by the driving mechanism above described, motion is imparted to spiral gear 45 through spur-gear 46 and sleeve 44. As spiral gear 45 rotates it rotates the gear 35, loosely mounted on carrier-arm 20, and through the screw-threads upon the interior face of sleeve 34 and those on carrier-arm 20 the carrier-arm is moved back or forth through sleeve 29 and arm 33 of the support 28, thus moving the carrier-arm outward or inward in a radial'direction relative to shaft and press. As the worms 37 on each side of the press are driven by the same shaft 43 from the controlling-engine or other source of power, the same motion, both in direction and amount, is given to both supports and carrier on each side of the press, and as both arms 47 on each side of the press are driven from a common shaft 52 the same motion, both as to direction and amount, will be given to each of the carrier-arms radially through the supports. A uniform motion, both in a revolving direction and in a radial direction, will beimparted to each of the carrier-arms on each side of the press. The arms will therefore move in unison.

By my im proved devices the carrier-arms are mounted centrally of the press or substantially so and are adapted to have a revolving motion and a radial motion relative to the press or its shaft, and can thus at will be moved to any desired position in the press either to carry a printing-cylinder, printingtube, or support therefor to such part of the press to be inserted therein or to carry such printing-cylinder or support from such part of the press to any convenient point of delivery. Any printing-cylinder, tube, or support thereforcan be radially secured to and be carried by my said carrier-arms. W'hen sucha printing-cylinder or the like is brought to the proper delivery-point, it can be removed from the carrier-arms by hand, if desired, or by any other suitable means. here the printing-tube or support therefor is a hollow shell or form, as shown in the drawings, it can be removed to a standard 27. This standard has a receiving-arm 54, which can be brought into line with the shaft carrying the printing-cylinder, tube, or support, and the shaft 54 be secured in line with the shaft of the printingcylinder by any suitable means-such, for instance, as by a pin 55, adapted to slip into a a cylindrical opening in the end of the shaft and to secure the two shafts together. After this has been done part 22 of the head of one of the carrier-arms is swung down or the entire head is removed, as above described, whereupon the printing tube or form or support can be slipped off from its shaft onto-the receiving-shaft 54, the disks 56 serving to receive and hold the same where the latter is a hollow printing tube or shell. The printing 'tube or shell or support can be removed from the-receiving-arm in any suitable way. The reverse of the above operation takes place when a printing-tube or support is inserted into the press.

My improved pressure devices forregulating the pressure between the printing-cylinders and the impression-drum in their'pre :ferre'd form, as shown in the drawings herein,

consist of the following devices: The bearing for the shaft of each printing-cylinder on each side of the press consists of a plate 57 ,adaptedto fit into similar-shaped openings'58 in the framework of the press andcapable of a slight vertical sliding movement in said openings. Each plate 57 has an opening in it, into .which asmaller bearing-piece 59 is adapted to fit, piece 59 having a circular opening 60, adapted to receive the end of ashaft of a printingcylinder. By means of the form of the piece 59 and the opening into which itlis shaft 72.

inserted in plate 57, and also by means "of tightening-screws 61, piece 59 can be securely fastened in position in sliding plate 57.

Plate 57 is providedwith an opening 62, into which projects an eccentric 63, the shaft 64 of which is held in bearings in brackets 65, secured to the framework of the press. As eccentric 63 is turned'in one direction or another sliding plate 57 is moved upward or downward. Motionvis imparted to shaft 64 and eccentric '63 bythe following means, viz: A rod'66 is keyedjto shaft 64 and is connected at its other end to rod 67. The latter is adj ustably mounted'in a bracket 68 of a-wheel 69, the latter being mounted on the shaft 36 0i. the press.

Sets of rods 66 and 67 and bracket 68 are provided for each printing-cylinderof the press,

and all of the sets are similarlysecured to difierent .parts'of wheels 69. It will of course be understood that there is a wheel 69 at each side of the press; A slight rotary motion can be imparted to wheels 69 by the following mechanism: Each wheel 69is pro vided with asegment 7O 70 of a worm-wheel,

which meshes with a worm 71, mounted ona The two shafts 72, one oneach side of the press, carry at their other ends a beveled gear-wheel 73. Beveled gears 73 mesh with beveled gears 74 at the opposite ends, respectively, of shaft 75, the latter shaft running across the press; Shaft 75 is driven by 'meansof shaft 76 and a beveled gear 77 at one end of it meshing with one of the beveled gears 74 on shaft 75. Shaft 76 may be driven by any suitable source of power; but I prefer to connect it and drive it from a controlling engine in the same manner as above referred to in reference to shafts 43 and 52 and for the same reason. As motion is imparted'to worms 71 on differentsides of the press by means of the single shaft 76 and the intervening connecting mechanism, a uniform rotary motion in one direction or: the other is imparted to the two wheels 69 onthe different sides of the press, andasthese wheels move one wayor the other the printing-cylinders throughout :t-he:press are all moved toward-or away-from theimpression-drum bya nniformmove-ment.

In orderto allow individual adjustment of 3 each printing-cylinder, should-that be necessary, I preferably secure r0ds67 to brackets .68 adjustablyi'by'means of th'efollowing described devices: The end of each. rod 67 is mounted in a block 77, adapted to slide in grooves in the bracket 68. Block 77 can be adjusted one way or the other along the groove by means of set-screws 78 78. a

By means ofmy-improveddevices for regulating the pressure between 'theprintingcylinders andthe impression-drum very fine and delicate adjustments can be made and the pressure can be uniformly applied and readily controlled.

Motionis imparted to themulticolor-press shown in the drawings through pulley 79 and gear-wheels 80,81, 82, and 83. Motion isim parted .to the ink-frames to swing them backward and forwardthrough shaft 84, driven from any suitable source of power, but-preferably from a controlling-engine,through beveled gears 8586 87, shaft 88, worm-'89, and worm-wheel 90, mounted on shaft 91, carrying ink-frames 92 9.2. The devices for driving theother parts of the press form no part of my present invention, are not shown in detail in the drawings, and will not be further described.

By employing wor1n-wheels 46 and worms 47'and also worm-wheels 32 and worms 37 the carrier-arms, will be locked in any position where-theymay stopand be prevented both from a revolving motion and a radial motion through the supports'until the worms or one set of them are again rotated.

What I claim as new, and desire to secure byLetters Patent, is

' 1.- In a press, the combination of oarrierarms mounted centrally of the press and adapted to have a radial and also a revolving movementand adapted to carry printing-cylinders, tubes or supports therefor and means for imparting radial and revolving movements to the carrier-arms, wherebyprintingcylinders, tubes or supports therefor can be removed from their proper places in the press and be carried to a convenient place of delivery or can be carried from such place to and be inserted in, their proper placesin the press. 7 Y

2. In a press, the combination of carrierarms mounted centrally of the press and adaptedto'have a radialand alsoarevolving movement and adapted to carry printing-cylinders, tubes or supports therefor, and means,

driven by the driving mechanism'of the-press, for imparting radial and revolving movements to the carrier-arms, whereby printingcylinders, tubes or supports thereforcan be removed from their proper places in the press and be carried to a convenient place of de- 'livery or can be carried from such place to and be inserted in, theirproperplacesin the press.

3. In a press, the combination of carrierarms mounted centrally of the press and adapted to have a radial and also a revolving movement and adapted to carry printing-cylinders, tubes or supports therefor, and means, driven by the driving mechanism of the press and connected with a controlling-engine, for imparting radial and revolving movements to the carrier-arms, whereby printing-cylinders, tubes or supports therefor can be removed from their proper places in the press and be carried to a convenient place of delivery or can be carried from such place to and be inserted in, their proper places in the press.

4. In a press, the combination of supports for the carrier-arms mounted centrally of the press and adapted to have a revolving movement, carrier-arms, adapted to carry printing-cylinders, tubes or supports therefor and mounted on the supports and adapted to have radial movement relative thereto, and means for imparting revolving movement to the supports and means for imparting radial movement to the carrier-arms, whereby printingcylinders, tubes or supports therefor can be removed from. their proper places in the press and be carried to a convenient place of delivery or can be carried from such place to and be inserted in, their proper placesin the press.

5. In a press, the combination of supports for the carrier-arms mounted centrally of the press and adapted to have a revolving movement, carrier arms, adapted to carry printing-cylinders, tubes or supports therefor and mounted on the supports and adapted to have radial movement relative thereto, and means for imparting revolving movement to the supports and means for imparting radial movement to the carrier-arms driven through a controlling-engine, whereby printing-cylinders, tubes or supports therefor can be removed from their proper places in the press and be carried to a convenient place of delivery or can be carried from such place to and be inserted in, their proper places in the press. I

6. In a press, the combination of supports for the carrier-arms mounted upon the main shaft of the press and adapted to revolve around said shaft, carrier-arms, adapted to carry printing-cylinders, tubes or supports therefor and mounted in the supports and adapted to move through the supports radially of the press, means for imparting to the supports a revolving movement around the shaft and means for moving the carrier-arms through the supports in a radial direction, whereby printing-cylinders,tubes or supports therefor can be removed from their proper places in the press and be carried to a convenient place for delivery or can be carried from such place to and be inserted in, their proper places in the press.

7. In a press, the combination of supports for the carrier-arms mounted upon the main shaft of the press and adapted to revolve around said shaft, means for revolving said supports,carrier-arms,adapted to carry printing-cylinders, tubes or supports therefor and mounted in the supports and adapted to move through the supports radially of the press, gear-wheels screw-threaded interiorly,loosely mounted upon the carrier-arms and restrained by stops upon the supports from radial motion relative to the supports, screw-threads upon the carrier-arms adapted to engage with the interior screw-threads of said gear-wheels, and gearing meshing with said gear-wheel for rotating the latter, whereby movement will be imparted to the carrier-arms through the supports in a radial direction and whereby printing-cylinders, tubes or supports therefor can be removed from their proper places in the press and be carried to a convenient place of delivery or can be carried from such place to and be inserted in, their proper places in the press.

8. In a press, the combination of supports for the carrier-arms mounted-upon the main shaft of the press and adapted to revolve around said shaft, a Worm-wheel secured to said supports, a worm meshing with said worm-wheel and means for turning the Worm, under the control of the operator,whereby the supports may be revolved around the shaft at will and will be locked in any position where they may stop, carrier-arms, adapted to carry printing-cylinders, tubes or supports therefor and mounted in the supports and adapted to move through the supports radially of the press, gear-wheels screw-threaded interiorly, loosely mounted upon the carrier-arms and restrained by stops upon the supports from radial motion relative to the supports, screwthreads upon the carrier-arms adapted to engage with the interior screw-threads of said gear-wheels, a spiral gear wheel meshing with each of said gear-wheels, a worm-wheel secured to each spiral gear-wheel, a worm meshing with each worm-Wheel and means for turning the worms, under the control of the operator, whereby movement will be imparted to the carrier-arms through the supports in a radial direction at will and the carrier-arms will be locked in any position where they may stop, and whereby printing-cylinders, tubes or supports therefor can be removed from their proper places in the press and be carried to a convenient place of delivery or can be carried from such place to and be inserted in, their proper places in the press.

9. In a press, carrier-arms for moving printing-cylinders, tubes or supports therefor, each provided with a removable head having devices for holding and clamping one endof the shafts of the printing-cylinders, tubes or supports, and means for securing the removable head to the carrier-arm and for detaching it therefrom.

10. In a press, carrier arms for moving printing-cydinders, tubes or supports therefor,each provided with a removable head having devices for holding and clamping one end of the shafts of the printing-cylinders, tubes moved from the carrier-arms.

or supports, a rod adapted to fit into and'move in a cylindrical recess in the carrier-arm, means for locking the rod in any position and, means for securing the removable head to the rod, whereby the rod and removable head may be unlocked and be removed out of the way of printing-cylinders, tubes or supports therefor while being placed uponor re- 11. In a press, the combination of a series of printing-cylinders, adjustable plates carryi'ng the bearings of each cylinder, eccentries mounted upon the framework of the press adapted to engage with the adjustable plates to move them radially outward or inward, rods secured to the shafts of the eccentrics for turning the latter, a wheel at each side of the press to which the said rods on that side of the press are secured, and means for rocking said wheels driven from a comm'on source of power, whereby the printingcylinders may all be moved the same distance and in unison toward or away from the impression-drum and the pressure between the printing-cylinder and the drum be regulated.

12. In a press, the combination of a series of printing-cylinders,adjustable plates carrying the bearings of each cylinder, eocen-' trics mounted 'upon the framework of the press adapted to engage with the adjustable between each rod and its wheel, whereby the,

ing-cylinders may all be moved the same distance and in unison toward or away from the impression-drum and the pressure between the printing-cylinder and the drum be regulated.

. 13. In a press, the combination of a series of 1 printing-cylinders, adjustable plates car rying the bearings of each cylinder, eccen trics mounted upon ,the 'framework of the press adapted to engage with the adjustable plates to move them radially outward or inward, rods secured to the shafts of the eccentrics for turning the latter, a wheel at each side of the press to which thesaid rods on that side of the press are adj ustably secured, set-screws for adjusting the locking connections between each rod and its wheel, whereby the pressure between each printing-cylinder and the drum can be separately regulated, and means for rocking said wheels driven from a common source of power, whereby the printing-cylinders may allbe moved-the same distance and in unison-toward or away from the impression-drum and the pressure between the printing-cylinder and the drum be regulated. r

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDWARD HETT.

Witnesses:

EDWIN SEGER, GEO. W. MILLS, Jr.

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