US486365A - almfin - Google Patents

Description

(No Model.) 5 Sheets-Sheet 1.

' K. ALMEN.

PRINTING PRESS..

,m n@ o me bams PETERS en., mowurna., wAsMmnroN, D.' c.

K. ALMN.

PRINTING PRESS.

5 Shets-Sheet 2.

(No Model.)

No. 486,365'. Patenjteamv. 15,1892.

(No Model.) v 5Shee's-Sheet 4.

K. ALMEN.

PRINTING PRESS.

Patented Nov.15, 1892.

(No Model.) r 5 sheetssheet 5.

K. ALMN. PRINTING; PRESS.

No. 486,365. Patented Nov. 15,1892.

'Wizessem 15a/www:

16 QM A WZ' mm known Liberty press.

I UNITED STATES PATENT OFFICE.

KARL ALMEN, OF STOCKHOLM, SWEDEN, ASSIGNOR TO F. M. WEILERS LIBERTY MACHINE WORKS, OF BERLIN, GERMANY.

PRINTING-PRESS.

SPECIFICATION forming part of Letters Patent No. 486,365, dated November 15, 1892.

Application led October 14. 1891. Serial No. 408,701. (No model.) Patented in Germany August 1, 1891, No. 62,547 in Belgium August 1, 189], No. 95,871, and in Austria-Hungary November 23,l 1891, No. 36,742 and No. 61,710.

To all whom, may concern:

Beit known that I, KARL ALMN, a subject of the King of Sweden and Norway, residing at Stockholm, Sweden, have invented certain new and useful Improvements in Printing- Presses, (patented in Germany August l, 1891, No. 62,547; in Belgium August 1, 1881, No; 95,871, and in Austria-Hungary November 23, 1891, No. 36,742 and No. 61,7105) and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

The invention relates to printing-presses, and particularly to delivery mechanism for that class of presses' in which the bed and platen have a reciprocal motion, whereby the printed sheets are removed from between said bed and platen and deposited upon the delivery-table; and my said invention has for its object the combination, with the flier, of the grippers and mechanism for actuating these devices.

The invention has for its further object a construction whereby the movements ofv the flier are controlled by the movements'of the platen and bed, while the grippers are controlled by the movements of the l'lier.

To these ends the invention consists in the combination, with the flier of a printingpress, of gripper-s and mechanism for operating the iiier and grippers, as will now be fully desoribed,reference being had to the accompanying drawings, in which I have illustrated my improvements as applied to the Well- In said drawings, Figure 1 is a side elevation of so much of a printing-press as is necessary to illustrate the application thereto of my invention, the iiier being shown in its position relatively to the platen and bed when an impression is about to be taken and in dotted lines when the printed sheet is being or after being delivered to the receiving-table. Fig. 2 is a vertical section thereof taken on a line between the platen and bed in front of the flier. Figs. 3, 4, and 5 are detail Views illustrating the relative positions of the iiier and gripper on their return movement after having delivered a printed sheet. Fig. 6 is a detail top plan View, and Fig. 7 a detail elevation of a portion of the flier-frame, and Fig. 8 is a sectional elevation of the flier and a portion of one of the connecting-rods and guide-standards.

Similar letters of reference indicate like parts wherever such may occur in the abovedescribed iigures of drawings.

In the drawingsIhave shown myinvention in its application to a Well-known construction of printing-press, the combined flier and grippers being detachably connected with the platen and bed-pivot, While the guides and part of the operating mechanism for the Hier and grippers are detachably connected with the frame of the pressand they are so constructed as to be readily applied to any other construction of printing-press inf which the platen and bed have a reciprocal movement.

The guides for the Hier consist of two standardsBand O, whose upper ends are curved in the direction of the delivery-table P, which latter is supported from said standards and is detachably secured to its supporting-arms z2 by means of a screw and thumb-nut y, Figs. l and 2, said supporting-arms z2 being bolted to the upper end of the standards and suitably braced by means of brace-rods z', Fig. 1. One of the standards-as, for instance, the standard B-is provided at its upper end with a toothed sector c, and both standards have a guide-groovef extending the full length thereof, the standardO having an additional guide-groove g,that does not extend the full length thereof. (See Figs. 1, 2, and 8.)

The platen P and the bed BX are hinged or pivoted together at j in a well-known manner, the pivot-pins l being made sufficiently long to project some distance from one side of the hinge-jointsj.

The flier FX consists of a rectangular frame composed of the side bars E E, secured to a cross-bar D, and the cross-bars F F', secured to the side barsE E, as shown in Fig. 2. The cross-bar F is of greater width than the like bar F and serves as a bearing for the grippers M, which are composed of spring-lingers lsecured to a shaft L, that has its bearings in radial arms o, projecting from the cross-bar ICO D. A sp1'ingt,Figs. 2, 6, and 7, wound on said shaft L and having one of its ends secured thereto and the other to the cross-bar D, tends to turn the shaft in the direction of the Hier to keep the grippers M in contact with the cross-bar F thereof. The cross-bar D, that supports the Hier, has a journal h at each end projecting into the groovefin the standards B C and has mounted on said journals one end of a connecting-rod G and H, respectively, whose opposite ends are pivoted on the hinge or pivot pin lof the platen and bedarms of the press, as shown in Fig. 2. The connecting-rod G on the side of the standard B has a cam-shaped head G', (more clearly shown in Figs. 3,4, and 5 for purposes presently to be eXplained,) and said rods Gand H are braced together by a cross-brace lo, Fig. 2, ator near their lower end. It will bereadily understood that the rods G and H may be pivotally connected with the platen or bed at any other suitable point than the hinge-pin l; but this is the most convenient means of connection that I know of.

A pawl W, provided with a short arm w and a longer arm w, is pivoted on a pin w2 to one end of the cross-bar D. The free end of a flat spring o, secured to the back ofthe bar, has bearing on said pawl and tends to maintain the same in a normal position. The gripper-shaft L has at its end proximate to the standard B a crank-arm q, whose pin fr is adapted to ride on the cam-head G of the connecting-rod G, as hereinafter explained. The shaft L also carries a radial arm or tappet s, adapted to be engaged by the short arm w on the pawl WV, said radial arm or tappet being formed on a collar adjustable on shaft L by means of a set-screw. Tha-t journal h of the cross-bar D which lies in the groove f of standard B carries a toothed segment N, that is adapted to gear with the toothed sector c on said standard, while that journal h of said cross-bar which lies in the groove f of the standard C carries a radial guide-arm K, the free end of which is provided with a pin fn, that projects into the shorter groove g of said standard C.

The operation of the described devices is as follows: Let it be supposed that a printed sheet has just been dropped by the flier F onto table P, the Hier and gripper-s being in the relative positions shown in Figs. l and 3 in dotted lines and full lines, respectively, and a fresh sheet laid on the platen P", so as to overlap the outer or left-hand edge thereof. The connected arms of said platen P and of the bed B now descend, carrying the connecting-rods G and H, and consequently i the flier and the grippers connected therewith, along with them. The pin o on radial arm q of shaft L is now bearing on the camface of head G of connecting-rod G. The segment N is in gear with the sector c, while the short arm w on cam W is out of engagement with the radial arm or lug s on shaft L, which latter is held against the stress of its spring by the cam-head G in a position in which the gripper-fingers are held out of engagement with their bearing-bar F of the flierframe. Finally, the pin 'n on radial arm K is outofengagementwiththegrooveginstandard C. As the platen and bed descend the segment N revolves on the sector c, and the pin r of crank q on shaft L rides over the cam-face of head G of standard G, the iiier F revolving simultaneously in the direction of the arrow, Figs. l and 3. inasmuch as the short arm w of pawl W is not in engagement with the radial arm or lug s on shaft L, said pawl under the stress of its spring lies in its normal position with said short arm in front of or below the radial arm son shaft L. (See Figs. 3 and 6.) As soon, however, as the pin r of radial arm q on shaft L moves out of contact with the cam-face on head G of connectingrod G, during the further downward movement of the said rod and the rod H, the said radial arm s will bear upon the short arm w of pawl W, as shown in Fig. 4, thereby locking the grippers M against motion toward the flier under the stress of the springt, acting on the gripper-shaft L. As the segment N rolls over the sector c, the tlier FX is turned from a horizontal position in rear or to the right of the standards B C to a nearly-vertical position in front or to the left of said standards, at which time the said segment N will have moved out of gear with the sector c, as shown in Fig. 5, and when this takes place the pin n on arm K of cross-bar D will enter the groove g in standard C. During the further downward movement of the connecting-rods G and H the hier will move in a vertical plane, being guided in the vertical portion of thc grooves f and by the vertical groove g, and its movement is so timed as that it will lie between the platen and bed of the press about the time they come into parallelism for the taking of an impression, the hier bearing upon the sheet on the platen. At the moment the hier comes in contact with the platen and paper thereon the long arm -w of the pawl W comes in contact with the fixed abutment CZ, Figs. 2, 5, and 7, thereby turning the said pawl against the stress of its spring, Fig. '7,`

and moving the short arm w out of engagement with the radial arm or 'tappet s on shaft L and releasing the same, said shaft being turned under the stress of its spring t to move the grippers M, which press and hold the paper to the cross-bar F of the flier, at or a little after which the platen PX and bed BX are brought onto the intervening sheet and the impression is taken, the flier moving synchronously with said platen and bed.

Inasmuch as the movements of the flier are not only timed to the movements of the platen and bed, but correspond in speed therewith, a displacement of the sheet on the platen after having been seized by the grippers cannot take place. After the impression is taken the platen and bed move away from each other, the hier ascending vertically at the IOO IIC

IIS

same speed, thereby lifting the sheet gradually from the platen. This vertical movement of the flier continues until the segment N moves into engagement with the sector c, at which moment the pin n on arm K of crossbar D moves ont of its shorter guide-groove g. As the flier is turned from left to right and from a vertical into a horizontal position the crank-pin r comes in contact with the camface on head G of connecting-rod G and rides along the same, and when the iiier is about to assume a horizontal position the shaft L will have been turned sutciently by the action of said cam-face on the crank-pin to release the printed sheet, which drops onto table P.

As shown in Figs. l and 2, the standards B and C are detachably secured to the pressframe by means of bolts a and b, so that they can be readily attached to or detached from the press.

Inasmuch as the iiier is connected directly to and is operated by the bed and platen, such operating mechanism as would otherwise be necessary to actnate the iiier is dispensed with, so that the mechanism of the press is not rendered more complex, and as the standards B and C and connecting-rods G and H are readily connected with the frame of a printing-press and the bcd or platen or the hinge-pin thereof my combined flier and gripper may be properly considered as an attachment for printing-presses.

Having thus described my invention, what I claim as new therein7 and desire to secure by Letters Patent, is

l. In a printing-press, the combinationfwith a reciprocally-movable platen and bed, a flier provided with a gripper-bearing reciprocating vertically between said platen and bed, a toothed segment connected with the iiier, a crank-shaft having its bearing on the flier, grippers secured to the crank-shaft, and a tension device operating on said shaft to hold the grippers in contact with their bearing, of a fixed toothed sector adapted to mesh with the like segment on the fiier and a fixed abutment inthe path of the crank of the grippershaft, operating to successively impart a partial revolution to the flier and gripper-shaft, respectively, after said iiier has moved clear of the bed and platen, for the purpose set forth.

2. In a printing-press, the combination, with a reciprocally-movable platen and bed, a liier reciprocating vertically between said platen and bed and having a bearing for the grippers, a toothed segment connected with said flier,a crank-shaft mounted on the Hier, grippers secured to the crank-shaft, and a tension device operating on lthe shaft to hold the grippers in contact with their bearing on the liier, of a fixed toothed sector adapted to gear with the segmenton the Hier, a fixed abutment in the path of the crank-shaft, operating to successively impart to said flier and shaft, respectively, a partial revolution, a locking device for locking the crank-shaft against returning to its normal position under the action of the tension device, and a releasing device for releasing said crank-shaft from the locking device, said elements being timed in their operation to the movements of the platen vand bed, as and for the purpose set forth.

3. In a printing-press, the combination, with the bed and platen hinged together, as described, of a combined flier and gripper comprising a rectangular frame D E F F ,having motion on and with the hinge-pin of said bed and platen between the latter and having bearing on and motion with the platen when the latter is in a given position, a rock-shaft connected with the frame at its upper end, gripper-lingers secured to said shaft, actuating devices operating to hold the fingers in contact with the upper cross-bar of the frame, to move said fingers out of contact therewith as said frame comes in contact with the platen, and again return said ingers to seize Vthe sheet to be printed, said frame moving upwardly with the hinge-pin after the impression is made, and mechanism for tilting said frameand moving the gripper-fingers to release the printed sheet, as set forth.

4:. In a printing-press, the combination, with the bed and platen hinged together, as described, of a flier consisting, essentially, of a rectangular frame, the connecting-rods G and H, connecting the flier with the hinge-pin of the bed and platen, said connecting-rod G having a cam-head G', the spring-actuated rock-shaft L, provided with gripper-fingers and mounted at the upper end of the flier, said rock-shaft having a crank adapted to be engaged by said cam-head to move said shaft against the stress of its spring, and means for tilting the iiier in one direction when about to reach the limit of its upward movement and in a reverse direction at the beginning of its downward movement, for the purpose set forth.

5. In a printing-press, the combination, with the bed and platen hinged together as described, of a flier consisting, essentially, of a rectangular frame, the connecting-rods G and H, connecting the flier with the hinge-pin of the bed and platen, said rod G having a camhead G', a spring-actuated pawl pivotally connected to the upper cross-bar of the flier, the rock-shaft L, provided with gripper-fingers, mounted on the flier near said upper crossbar and carrying a crank q r, adapted to be engaged by the cam-head G and by the pawl when said flier moves in opposite directions, a releasing device for releasing the crank from engagement with the pawl, and means for tilting the flier in one direction as it is about to reach the limit of its upward motion and in a reverse direction at the beginning of its downward motion, for the purpose set forth.

6. I11aprinting-press,the combination,with the bed and platen hinged together as described, of a iiier consisting of the frame D E F F', the connecting-rods G and H, connect- IOO IIO

ing the flier with thehingepin of the bed and platen, said rod G having a cam-head G', a spring-actuated pawl pivotally connected to the upper cross-bar of the flier and provided with an arm w, the rock-shaft L, mounted on the flier near said upper cross-bar, said shaft carrying gripper-fingers M and a crank q1, adapted to be engaged by the cam-head G' and by the pawl when said flier moves in opposite directions, a fixed abutment in the path of the arm w of the pawl,and gearing adapted to tilt the fiierin one direction as it is about to reach the limit of its upward movement and in a reverse direction at the beginning of its downward movement, for the purpose set forth.

'7. An attachment for printing-presses, having a reciprocally-movable platen and bed consisting of a flier FX, composed of the supportingbar D, provided with journals h, the toothed segment N and guide-arm K on said journals, the side bars E and the cross-bars F F', a gripper for clamping the Work to the flier, releasing devices for releasing the work from the gripper, the connecting-rods G and H, said rod Ghaving the cam-shaped head G for operating the releasing devices, the standard B, provided with guide groove f and toothed sector c, and the standard C, provided with guide-grooves f and g, said parts being arranged for operation substantially as and for the purpose set forth.

8. An attachment for printing-presses, having a reciprocally-movable platen and bed consisting of the flier FX, com posed of the supportingbar D, provided with journals h, the toothed segment N and guide-arm K on said journals, the side bars E and the cross-bars F F', the spring-actuated pawl WT, provided with the short arm w' and the long arm w, connected with the bar D, the spring-actuated gripper-shaft L, having crank q r and tappet s, the connecting-rods G and H, said rod G having the cam-shaped head G', the standard B, provided with guide-groove f and toothed sector c, and the standard C, provided with guide-grooves f and g, said parts being arranged for operation substantially as and for the purpose set forth.

KARL ALMN. Witnesses:

K. S. ZIMMERMAN,

llferchcmt. AUGUST NILssoN,

Book-keeper.

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