US1479869A

US1479869A - orange

Info

Publication number: US1479869A
Authority: US
Publication date: 1924-01-08
Anticipated expiration: 1941-01-08

Description

Jan 8, 1924. 1,479,869

I. V. ORANGE AUTOMATIC STOP FOR JOB PRESSES Filed June 28 1920 mum d591,

attoz'maao 2 Sheets-Sheet 1 Jan. 8 19240 I. v. ORANGE AUTOMATIC STOP FOR JOB PRESSES Filed June 28 1920 1 2 Sheets-Sheet 2 anbgutcpz Z l @727??? Fatented Jan. 8, 1924,

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IRA. VERNON ORANGE, GF'EIGH-POINT, NORTH CAROLINA.

AUTOMATIC STU? Application filed June 28,

To all whom it may concern Be. it known that I, IRA V. ORANGE, a citizen of the United States, residing at High Point, in thecounty of Guilford and tate of North Carolina, have invented certain new and useful Improvements in Automatic Stops for J ob Presses; and I do 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.

My invention. relates toimprovenients in stop, mechanisms for printing presses and more particular y for job presses having an automatic feeder for supplying sheets oi paper to the usual platen. On presses of thisnature, the feederoften moves sheets of paper retrogradely from the platen, due to poor paper, worn paper clamps on the platen, or improperly operating feed dogs. Whenever this occurs, the paper is crumpled and jammed against the back plate of the feed box, and my principal object is to utilize the paper in this condition for actuating a sensitive control for automatic stoppingmeans for the press. When the press is power driven, another object is to make novel provision for both cutting off the power and applying a brake to a moving part, such as the usual fly wheel.

In most forms of my invention, the press stopping means is spring actuated and a latch is employed for holding it against action when the press is properly operating. A further object of the invention, however, is to provide an effective arrangement of parts for automatically connecting the latch with a moving part of the press to be automatically released by the latter in case the machine is improperly operating.

A still further object of the invention is to provide an attachment which may be easily applied to job presses without making any changes whatever in the construction of the press.

With the foregoing in view, the invention resides in the novel construction and combination of parts hereinafter described and claimed, the descriptive matter being supplemented by the accompanying drawings.

Figure 1 is a perspect've view of a job press equipped with my invention.

F1 2 is a disassembled iers )ective view 1' D or the stopping attachment.

FOB; JOB PRESSES.

1520. ScrialNo. 392,295.

Fig. 8 is a perspective view of the; latch and associated parts, for holding the' 'bralre against action. 'Y i Fig. 4 is a perspective view ofthe means for connectingthe latch releasing rod to the operating link of, the inkroll. carriage.

Fig. 5 is a sectional perspective view of a portion of the automatic, feeder and asso ciated parts of the attachment.

j In the drawings I-haveillustrated my invention in connection with a well known for-m ofjob press which includes the usual chase C, roller carriage R, liij kLconnected. to the usual crank arm A otsaid. carriage,

pitman P for swinging the chase C, automatic feeder F, platen P and fly wheel W. The press is driven by power such as a electric motor and this motor is supplied with current through a switch S The feeder F includes the usual feed box B whose front plate F issecured in place by bolts and wing nuts N, andv the, usualfeed dogs D act on the paper held in the. box B, for feeding such paper onto, theplaten P when the latter movesto substantially horizontal position. in the usual way. Fig. 1, however, shows the platenin. active position against the chase, (J; onto the platen, the usual paper holders come into play for securingv it while the feed dogs D move on their return movement in readi ness for action upon another sheet, and these dogs rise slightly from the sheet during this return movement. However, when an inferior sheet of paper is encountered by the dogs, when these dogs do not rise adequately to clear the paper on the platen, or when the. paper. holding means of said platen is not acting positively, the dogs D often pull the sheets retrogradely from the platen and crumple them against the back plate. F of the feed box B. When this occurs, the following sheets cannot be fed onto the platen and injury to a great deal of paper often occurs before the operator. sees that, the press is not properly working and brings it to a standstill. By equipping. thepress withmy. invention, however, any sheets of paper moved from the platen by the automatic feeder, will strike a sensitive control which auton'iatically throws stopping means for the press into play, thereby discontinuing its operation before any appreciable amount of paper has been injured.

s t Pa e is fed.

iii

In the drawings, 1 have illustrated a preferred form of construction, in which illustration, the numeral 1 designates a brake lever fulcrumed to a bracket 2 secured to the floor, one end of said lever being disposed to act on the fly wheel W, while its other end may well extend forwardly from the machine to be actuated by the operators foot. Received under the braking end of the lever 1 or otherwise operatively associated with said lever, is a brake actuating arm 3 hinged at 4,- to a suitable clamp 5 which is secured to the lower end of the press frame. A spring 6 exerts a constant upward stress on the arm 3, said spring being anchored to an appropriate clamp 7 which may also be secured to the frame of the press. A latch 8, however, acts to normally hold the arm 3 against upward movement and consequently holds the brake lever 1 away from the wheel 1V. As shown, this latch is in the from of a horizontal lever fulcrunied to an appropriate bracket 9 secured to the floor, one end of said lever having a hooked end 10 receivable in a slot 11 of the arm 3. The hook 10 normally passes through the slot 11 and engages the arm 3 as shown in Fig. 3, but when the end of said lever, remote from the hook, is raised, said hook is released and the spring 6 then immediately acts to raise the arm 3 and force the lever 1 against the wheel W, exerting a braking action to bring the press to a standstill.

I contemplate opening the switch S at or about the same time as the upward move mont of the arm 3 and as one effective manner of accomplishing this result I have shown the handle of said switch loosely received in an eye 12 carried by the arm. It thus follows that the moment this arm moves upwardly, the switch is opened, thus cutting off the power to the press so that the braking action of the lever 1 will become immediately efiective.

Connected with and rising from the latch 8 is a latch releasing rod 13, whose upper end is equipped with any preferred number of teeth 14. The upper portion of the rod 13 slides idly in a guide 15 secured by a clamp or the like 16 to any appropriate moving part of the press. I prefer, however, to connect said clamp with the carriage op crating link L as shown in Fig. 1. Under the normal working of the press, the guide 15 moves with the link L but merely idles on the rod 13. l/Vhen the paper jams, however, in the manner above set forth, the rod 13 is shifted laterally so that one of the teeth 14 engages a pin or the like 17 carried by the guide 15. It thus follows that the next upward movement of the link L will pull upon the rod 13, releasing the latch 8 from the arm 3 and permitting the spring 6 to act, cutting off the power and applying the brake. Figs. 1 and 2 illustrate the normal relation of the link 13 with the guide 15, while Fig. i discloses said rod and guide connected by means of the pin 17 and one of the teeth 14:. .l preferably provide a plu rality of these teeth in order that the guide and rod may be almost imn'iediately eon nected whenever said rod is shifted laterally, whether the link L is at the limit of its downwar-c movement or partly raised.

The automatic control for the stopping mechanism by preference consists of a tilting, gravity ri 'hted member having an actuating finger positioned to be struck by any paper moved retrogradely from the platen P by the feed dogs D, said control being connected (by link 24 described below) with the rod 13 for shifting the latter and connecting it with the guide 15 in the manner above set forth. In the present showing, the control is in the form of a rock shaft 18 mounted in appropriate bearings 19 having notched attaching plates 20 adapted to ac clamped under the nuts N as shown in Figs. 1 and 5. One end of the rock shaft 18 extends downwardly at 21 and is provided with a weight 22 for normally holding said shaft in. an idle position. The other end of shaft 18 is equipped with a crank 23 connected by the link 2% with the rod 13. Fingers 25 rise rigidly from the shaft 18 and are positioned behind the back plate F of the feed box B, said fingers being in position to be struck by the paper whenever it is jammed against said back plate. lVhen the weight 22 holds the shaft 18 in its normal position, the fingers 25 are of course spaced suliieiently in the rear of the plate F to allow the requisite movement of said lingers under the action of the paper, to rock the shaft 18, and when said shaft is in the position mentioned, the crank 23 and link 24: hold the rod 13 out of engagement with the pin 17. A depending stop 26 on the shaft 18 preferably bears against the plate F when this relation of parts obtains and is held in contact with said plate by the action of the weight 22.

The attachment does not interfere in any manner with the usual operation of the press. The chase. C is rocked by the pitman 1 and the link L oscillates the carriage R to move the inking rollers in the usual way. This link is pivoted at its right hand end (Fig. 1) to the frame of the press and it necessarily swings vertically to some extent on this pivot as the machine operates, this movement being utilized in a manner to appear. As long as the machine is operating properly, the attachment remains idle, with the arm 3 held in lowered position against the tension of the spring 6, by the latch 8. In case a sheet of paper is pulled from the platen P however by the feed dogs D, such sheet is crumpled and jammed against the plate F and the fingers 25. This rocks the shaft 18, pulling upon the link 24 and shifting the rod 13 laterally until one of its teeth 14: engage. the pin 17. lVhen this takes place, the rod 13 connects the latch 8 with the link L and when this link swings upwardly, it pulls upon the rod, thereby releasing said latch. As soon as the latch is released, the spring 6 acts to raise the arm 3, simultaneously opening the switch S and applying the brake 1, thereby bringing the machine quickly to a standstill.

By constructing the device in the form of an attachment, no changes whatever are necessary in the construction of the press,

when installing the invention thereon. It is to be understood, however, that the invention may be built as a. part of the press at the time of manufacture, if desired. Furthermore, although the disclosed features of construction are preferable, numerous changes may be made within the scope of the invention as claimed.

1 claim:

1. The combination with a power driven job press having an automatic feeder for feeding paper onto the platen, of means for throwing off the driving power of the press and applying a brake to a moving part of the press, said means having a control in the path of any sheets of paper moved retrogradely from the platen by the feeder, said control being adapted to be struck and operated by such paper.

2. The combination with an electrically driven jobpress having a control switch, and an automatic feeder for supplying paper to the platen, of means for opening said switch and applying a brake to a moving part of the press, said means having a control in the path of any sheets of paper moved retrogradely from the platen by the feeder, said control being adapted to be struck and operated by such paper.

The combination with a job press having an automatic feeder for supplying paper to the platen, of automatic stopping means for the press having a tilting gravity righted control in the path of any sheets of paper moved retrogradely from the platen by the feeder, said control being adapted to be struck and operated by such paper.

42. he combination with a. job printing press having an automatic feeder for supplying paper to the platen, of stopping means for the press, a rock shaft mounted on the press and having an actuating finger in the path of any sheets of paper moved retrogradely from the platen by the feeder, whereby such paper will turn said rock shaft, and operating connections between said rock shaft and said stopping means.

5. The combination with a job printing rod mounted for lateral shiftir means for b, automatically shifting said rod laterally when imporper feeding occurs, and means for positively connecting said rod with a moving press part when moved laterally, whereby to cause said part to actuate said rod and release said latch.

6. The'combination with a job printing press having an automatic feeder for supplying paper to the platen, of self actuating stopping means for the press, a latch for holding said stopping means against action, a releasing rod for said latch having a tooth, a guide mounted on a moving part of the press and receiving said rod idly, and means for automatically shifting said rod laterally and engaging the tooth thereof with said guide upon faulty operation of the press, whereby said guide may move said rod to release said latch.

7. The combination with a job printing press having an automatic feeder for supplying paper to the platen, of self actuated stopping means for the .press, a latch for holdin said stopping means against action, a releasing rod for said latch, means for connecting said rod with a moving press part when said rod is shifted laterally, a rock shaft having connection with said rod for shifting the same laterally when the shaft is rocked, and a finger extending from said rock shaft in the path of any sheets of paper moved retrogradely from the platen by the feeder, whereby to be struck and moved by such paper to turn the rock shaft,

8. The combination with a job press having an automatic feeder for supplying sheets of paper to the platen, of a brake for the fly wheel of the press, a pivoted arm associated with said brake for applying the same, a spring exerting a constant stress on said arm to apply the brake, a latch for holding said arm against movement under the action of said spring, a rod rising from said latch and having a tooth on its upper end, a guide mounted on a moving part of the press and loosely receiving said upper end of the rod, a rock shaft mounted in parallel relation with the back plate of the automatic feeder, a crank on said rock shaft, a link connecting said crank with said rod,

a finger rising rigidly from said rock shaft and positioned to be struck by any sheets of paper moved retrogradely from the platen by the feeder.

9. A stopping attachment for job presses, comprising a brake to act on the fly wheel of the press, an arm operatively associated withsaid brake and means for pivotally mounting said arm, a spring exerting a con stant stress on said arm for moving itto apply the brake, means for anchoring said spring to the frame of the press, a latch for holding said arm against movement under the action of said spring, a releasing rod pivoted at its lower end to said latch, the upper end of said rod having a tooth, a guide receiving said upper end of said releasing rod and adapted for mounting on a movable press part, a rock shaft and means for mounting it in parallel relation with the back plate of the automatic feeder of the press, a crank on said rock shaft, a link connecting said crank with said relase rod, and a finger rising rigidly from said rock shaft, said finger being adapted to be struck by any paper moved retrogradely from the platen of the press by the feeding means.

10. A structure as specified in claim 9, the mounting means for said rock shaft comprising bearings having attaching plates adapted to be secured by the usual nuts which hold the back plate of the automatic feeder in place.

11. Controlling means for automatic press stopping mechanism comprising a rod "for connection with the stop mechanism, said rod being adapted to be mounted on the press for lateral movement, paper controlled means for laterally shifting said rod when improper feeding occurs, and means for connecting said rod with a movable press part when moved laterally, whereby said part may actuate said rod and bring the stopping mechanism into play.

12. Controlling meansfor automatic press stopping mechanism comprising a rod for connection with the stop mechanism, a guide to be mounted on a moving press part and adapted to loosely receive said rod, paper controlled means for laterally shifting said rod in said guide when improper feeding occurs, and means for positively connecting said rod and guide when the former is laterally shifted whereby said movable press part may actuate said rod to bring the stopping mechanism into play.

13. Controlling means for automatic press stopping mechanism comprising a self-ri hting rock shaft adapted to be mounted at the back wall of an automatic press feeder, said rock shaft having an upstanding finger over which the paper is normally fed, said finger being adapted to rock said shaft and thus bring the stopping mechanism into play when struck by a sheet of paper moving retrogradely.

14. A structure as specified in claim 13, said rock shaft having bearings provided with attaching plates adapted to be secured in place by the usual attaching bolts for the back plate of the feeder.

In testimony whereof I have hereunto set 7 my hand.

IRA VERNON ORANGE.