US752499A - Stop mechanism for envelop-machines - Google Patents

Description

PATENTED FEB. 16, 1904.

' P. I. WOLF.

STOP MECHANISM FOR ENVBLOP MACHINES.

APPLICATION FILED SEPT. 23 1903. ND MODEL. 2 SKEETB-SHBET 1.

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P. J. WOLF. STOP MECHANISM FOR ENVELOP MACHINES.

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UNITED STATES Patented February 16, 1904.

PATENT- OFFICE.

ENVELOPE COMPANY, OF ST. LOUIS, MISSOURI.

STOP MECHANISM FOR E-NVELOP-MAGHINES.

SPECIFICATION forming part of Letters Patent No. 752,499, dated February 16, 1904.

Application filed September 26, 1903. Serial No. 174,780. (No model.) i

To all whom it may c0n0er n: I

Be it known that I, PAUL J. WOLF, a, citizen of the United States, residing-in the city of St. Louis, State of Missouri, have invented certain new and useful Improvements in Stop -Mechanism for Envelop-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to a stop mechanism I for use inconnection with the envelop-machine shown in Letters Patent of the United States No. 635,213, issued October 12, 1899, to the Samuel Oupples Envelope Company.

The object of my invention is to furnish means through which the mechanism ofan envelop-machine will be thrown out of action and the operation of the machine stopped in the event of a break occurring in the paper from which the envelops were being made or the uniform production of envelops being interrupted in any manner. The stop mechanism is so constructed that in addition to its action being automatic in the event of interrups tion in the production of the envelops it may be actuated manually by a direct actuation of the belt-shifting members or from a point remote from said members. r

The invention consists in features of novelty hereinafter fully described, and pointedout in the claims.

Figure I is a view, partly in vertical longitudinal section and partly in elevation, of the envelop-conducting mechanism and my stop mechanism. Fig. II is a horizontal section taken on line H II, Fig. I, with the parts beneath said line shown in plan. Fig. III is'a rear elevation of my stop mechanism with parts shown invertical section, taken on line III III, Fig. I. 1 Fig. IV is a view showing a detail of thebelt-shifter lever. Fig. V is a vertical section taken on line V V, Fig. I. Fig. VI is a perspective view of the dog and rocker-arm by whichlthe stoprnechanism is 1 designates a part of the framework of an envelop-machine on which is mounted a rollerframe 2; that supports one end of each of a series of rollers 3. A duplicate of said frame is positioned at the opposite side of the machine to support the other ends of the rollers 3.

4 designates a driven shaft on which is mounted two or more envelop-carrier wheels 5, the shaft'being equipped with a tight pulley 6 and a loose pulley 7, adapted to receive a power-belt X.

8 designates endless bands that operate on the rollers 3 and traverse the perimeters of the carrier-wheels 5 to hold the envelope to said wheel while they are conducted around it. 9 and 10 are delivery-belts by which the envelops are conducted away from the carrier: wheels 5 after they have passed thereabout.

All of the foregoing parts are illustrated in the Letters Patent hereinbefore mentioned, and for a more complete understanding of said parts reference may be had to said patent.

11 designates a belt-shifter designed for engagement with the belt X to shift it from the .6 to the loose pulley 7; but such action is prevented during the operation of the machine by parts to be hereinafter described.

17 is a pawl pivoted to the shifter-operating lever ll near its upper end and having a handle 18. g This pawl is normally held projected at an angle to the operating-lever, and thereforeout ofalinementtherewith, through the medium of a spring 19. (See Figs. I and IV.)

20 is a block seated on the arm 16, and 21 is a slide-rod loosely mounted in said block. One end of said slideerodprojects through the block 20, as seen in Fig. I, to be engaged by the pawl 17, and on said rod, at the opposite side of the block, is an expansion-spring 22, which is confined between the block 20 and'a head 23 at the outerend of said slide-rod.

24 designates a bracket secured to the framework of the envelop-machine and extending upwardly therefrom. (See Figs. 1, III, and V.)

25 isa slide loosely fitted to the bracket 24 through the medium of screws 27, that pass through longitudinal slots 26 in the slide. This arrangement provides a slot-and-pin connection between'said slide and bracket which permits reciprocation of the slide in upward and downward directions. "The slide is actuated into lowered position through the medium of a draw-spring 28, that is connected to the bracket 24 by an eye 29 and to the slide' 25 by an eye 30. I

31 is a trigger pivoted at 32 to the slide 25 and having a finger 33, adapted for engagement with the head 23 of the slide-rod 21 to hold said slide-rod inwardly against the action of the spring 22 thereon.

34 is a spring that connects the lever-arm of the trigger 31 to the slide 25, this spring being of greaterstrength than the spring 22 on the slide-rod 21, so that it will overcome the action of the spring 22 and hold said slide-rod pressed inwardly.

35 is a pull-rodleading from the lever-arm of the trigger 31 to the far end of the envelopmachine and through the medium of which said trigger may be actuated for the purpose to be hereinafter named.

36 designates a hanger secured to the bracket 24 and extending horizontally over the nearby carrier-wheel 5, as seen most clearly in Fig. III. On this hanger is a cap-plate 37, which with the portion of the hanger extending over the carrier-wheel constitutes a bearing. In such bearing ismounted a dog 38, having an arm 39, which'extends in' the pathway of the envelops which are carried between the carrier-wheels 5 and the bands 8, that operate thereon. As the envelops are conducted between said wheels and bands they serve to support said dog-arm 39.

40 is a trigger-arm carried by the dog 38. 41 is a rocker-arm pivoted at 42 to an extension 36 of the hanger 36, as seen in-Figs. I,

II, and VI. One end of said rocker-arm is free and projects over the hanger 36 to be engaged by the trigger-arm 40 of the dog 38. The other end of said arm receives the pivotal connection of one end of a link 43, the other end of which is pivotally mounted on a stud 44, carried by the slide 25 at its lower end.

In the practical use of my stop mechanism the envelops (indicated by the letter A) are conducted to the carrier-wheels 5 and bands 8- of the envelop-machine and pass between said members in a similar manner to that set forth in Letters Patent No. 635,213, hereinbefore referred to. The parts of the stop mechanism in theirnormal positions during the operation of rod 35, connected-to the trigger-31.

the envelop-machine are in the positions illustrated in the drawings, the power-belt X running on the tight pulley 6 and the belt-shifter 11 being held from movement and actuation by the draw-spring 15 by reason of the engagement of the slide rod 21 against the pawl 17, carried by the shifter-operating lever 14. At such time the slide-rod 21 is maintained in engagement with said pawl through the medium of the trigger 31, The slide 25, by which the trigger 31 is carried, is upheld against the action of the draw-spring 28 in the following manner: While the envelops are passing between the carrier-wheels 5 ,and bands 8, the arm' 39 rides upon said envelops, as illustrated most clearly in Figs. 11 and III, and is sup ported thereby. While the arm 38 is so supported, the trigger-arm 40 of the dog 38 is positioned over the free end of the rocker-arm 41, and thereby-serves to hold said rocker-arm from upward movement. As a result of the rocker-arm being so held the link 43 is likewise upheld and'serves to maintain the slide 25 in an elevated position, so that the trigger 31 will be maintained in engagement with the slide-rod 21. In the event of there being any interruption in the production of envelops in the machine, so that the delivery thereof to the carrier-wheels 5 and bands 8 ceases, the support of the dog-arm 39 is lost, due to the absence of envelops beneath it, and said arm therefore swings'downwardly into the position seen in dotted lines, Fig. I. When such action occurs, the trigger arm 40 is withdrawn from engagement with the rockerarm 41 and said rocker-arm is freed. As a consequence thedraw-spring 28 acts to pull the slide 25 downwardly from its previous elevated position, and the trigger 31 is withdrawn from the head of the slide-rod 21. The spring 22 on said slide-rod then carries the rod outwardly to free it from engagement with the pawl 17, carried by the shifter-operating lever 14, thereby permitting movement of said lever and the shifter, to which it is connected, and the shifter is immediately actuated through-the medium of the draw-spring 15 to throw the power-belt X from the tight pulley 6 to the loose pulley 7 and stop the operation of the machine.

' By furnishing the pawl 17- on the shifteroperating lever with a handle 18 and pivotally connecting it to said lever I provide for the manual actuation of said lever to shift the power-belt at anytime without interfering with the automatic features of the stop mechanism, as the pawl may be thereby withdrawn from engagement with the slide-rod 21, so that the shifter-operating lever may be thrown. I also provide for the manual release of the shifter -operating lever from a point remote therefrom through the-'mediumof the pull- When said pull-rod is drawn upon, the trigger-finger 33 is moved away from the head of the slide-rod 21, thereby permitting movement of said slide -rod under the action of the spring 2-2, so that the pawl 17 will be freed to allow movement of the shifter-operating lever and shifter under the action of the drawspring 15. As seen in Fig. V, I provide pinholes 24? and 25 in the bracket 24 and slide 25, respectively, which will register with each other when the slide 25 is elevated and through which a pin may be passed, as shown in dotted lines, to uphold the slide 25 in setting the parts of the stop mechanism before commencing the operation of the. machine.

I claim as my invention 1. In a stop mechanism for envelop machines, the combination with envelop-convey ing means and driving-gear for said conveying means; of a spring-controlled shifter for governing said driving-gear, a spring-controlled slide-rod to engage said shifter, means for holding said slide-rod with a spring associated therewith under tension, and a dog supported by the envelops passing through the machine and having means for detachably engaging said slide-rod-holding means, substantially as set forth. v v

2. In a stop mechanism for envelop-machines, the combination with envelop-conveying means and belt-driving gear for said conveying means; of a spring-controlled shifter for engagement with the belt of said drivinggeaig a lever connected to and forming a part of said shifter, a spring-controlled slide-rod for engagement with said lever, a spring-coming means, of a spring-controlled shifter for governing said driving-gear, an operating-lever forming a part of said shifter, a pawl mounted on said lever, a spring-controlled slide-rod for engagement with said pawl, a spring-controlled slide, a trigger carried by said slide for engagement with said slide-rod, a rocker arm having connection with said slide, anda dog-supported by the envelops passing through the machine and arranged, for engagement with said rocker-arm to maintain said slide in elevated posit-ion, substantially as set forth.

4. In a stop mechanism for envelop machines, the combination with envelop-conveying means, and belt-driving gear for said con veyingmeans; of a spring-controlled belt-engaging shifter, a spring-controlled reciprocating slide-rod for engagement with said shifter, a spring-controlled slide, means carried by said slide for engaging said slide-rod and holding it to said shifter, a dog supportedby the envelops passing through the machine, and means connected to said slide to be detachably engaged by said dog to maintain said slide in elevated position and hold said slide-rod to said shifter, substantially as set forth.

5. In a stop mechanism for envelop-machines, the combination with envelop-convey- I ing means, and belt-driving gear for said conveymg means; of .a spring-controlled belt-engaging shifter, aspring-controlled reciprocating slide-rod for engagement with said shifter,

a spring-controlled slide, means carried by said slide for engaging said slide-rod and holding it to said shifter, a dog supported by the envelops passing through the machines, and a rocker-arm having connection with said slide and arranged to receive the detachable engagement of said dog to maintain said slide in elevated position and hold said slide-rod to said shifter, substantially as set forth.

PAUL J. WOLF.

In presence of E. S. KNIGHT, M. P. SMITH.

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