US826480A - Paper-cutting machine. - Google Patents

Description

PATENTED JULY 17, 19-0 F..'L. GROSS. PAPER CUTTING MACHINE.

Arrmonmx rILnn III-H.119, I902.

a annua -sum 1 0., WASHINGTON, n. r

PATBNTED JULY. 17, 1906.

I. L. GROSS. PAPER (HITTING MACHINE.

APPLIQATIOH FILED JULY 19. 1902.

3 8HEETBSHEBT 2.

THE NORRIS PETERS cc, WASHINOTGN DCIL No. 826,480. 'PA-TENTEDJULY 17, 1906.

P.- L. (moss. I PAPER GUTTING} MACHINE.

' APPLIO ATION FILED JULY 19, 1902.

3 GHEETS-SHHET 3.

II II II l lI 0.. WASHINGTON. o. c.

UNITED srArns FRANK L. CROSS, OF MYSTIC, OONNE FEEDER COMPANY, OF BOSTON, MAINE.

PATENT OFFICE.

PAPER-CUTTING MACHINE.

Specification of Letters Patent.

Patented July 17, 1906.

Application filed July 19,1902. Serial No. 116,193.

To all whom, it fitcty concern:

Be it known that I, FRANK L. Cnoss, of Mystic, in the county of New London and State of Connecticut, have invented certain new and useful Improvements in Paper-Cutting Machines, specification.

The invention relates to paper-cutting machines, and more especially to the mechanism for clamping and holding the paper during the cutting.

It is desirable in paper-cutting machines that the clamp be forced down upon the paper with substantially the full clamping pressure prior to the engagement of the knife with the paper, so that the top sheet shall not be drawn or displaced by the action of the knife in beginning the cut. The clamping pressure should also be continued until the cutting is completed, so that the bottom sheets may not be displaced. It is also desirable that the clamping pressure may be readily varied for different kinds of Work. In order that a machine may be operated with accuracy and certainty, it is also im portant that the clamping pressure should be uniform during the cut and also the same for successive cuts while operating upon the same class of work and with a given adjustment of the parts. Automatic clampingcutters have not fulfilled these conditions, and for that reason it has been customary to employ hand-operated clamps upon machines for doing certain classes of work where accuracy and certainty in the clamping and cutting are important. The reason for this is that in these automatic clamping-machines the clamping pressure was either dependent upon the resistance oflered to the knife by the paper or was dependent upon the frictional connection between the members of a friction-clutch. In the first case the clamping did not precede the engagement of the knife with the paper and the clamping pressure varied during the cutting, with the resulting uncertainty and danger of inaccuracy in the operation. In the second case there was no certainty and uniformity of action, owing to the wide and unavoidable variation in the resistance required to cause a frictionclutch to slip, even when the conditions are as nearly uniform as practicable.

The object of the invention is to provide a cutter in which the clamp is automatically of which the following is a.

operated to clamp the paper with a pressure which shall be definite and uniform forsuc cessive operations and which is therefore adapted for use under the conditions and'for. the classes of work which heretofore required machines having hand-operated clamps- To this end the primary feature of the invention consists in providing mechanism for automatically operating the clamp which is thrown out of action when the pressure between the clamp and paper reaches an amount which is definite and unvarying for any given adjustment.

The means which I prefer to employ for throwing the clamp-operating mechanism out of operation comprises a movable part introduced into the connections between the driver and the clamp, the movement of which relatively to the other parts of the connections is at each operation dependent upon an unvarying and definite resistance to the movement of the clamp and which by its movement causes the driver to be disconnected and the operating mechanism to be thus thrown out of operation. The form and arrangement of this movable part is immaterial so far as the broad scope of my invention is concerned, asI believe I am the first to insure a definite clamping pressure by mechanism which automatically operates the clamp and that I am also the first to disconnect the driver for the clamp-operating mechanism by a part the movement of which to disconnect the driver requires a pressure between the clamp and paper which is unvarying for a given adjustment and may be predetermined. After the clamp has been applied with the predetermined pressure it may be held in this position by any suitable devices, and these devices may be either included in the connections between the driver and clamp or may be arranged. outside said connections, and these devices may act merely to lock the clamp in position or may act to maintain an active pressure on the clamp. I prefer to construct and arrange these devices so that there is an active pressure equal to the clamping pressure, or, in other words, I prefer to maintain the pressure of the clamp upon the paper during the cutting, so that any compression of the paper by the knife will not act to relieve the pressure of the clamp, as might happen under some conditions if the clamp were merely locked in po on the clamp ICC ' clamping pressure for different classes of features of sition. This construction and arrangement of the devices for holding the clamp upon the paper also forms one of the features of my invention, which while it is not essential to the primary feature is important in insuring the most efficient and accurate operation under all conditions.

, A further feature consists in so constructing the devices which determine the clamping pressure requisitefor throwing out the op eratmg mechanism that they may be readily adjusted to vary the pressure for different classes of work and varying conditions. In combining these features with the primary feature of the invention I prefer to provide counterbalancing means-such, for instance, as 1". v cF-ht springfor resisting the movement of the movable part which throws out the clamp-operating mechanism and to so arrange this means that it will yield whenthe pressure between the clamp and paper overbalances the force of the counterbalancing means. The yielding of the counterbalancing means allows the movable part to move and by its movement to throw out the clan11 operating mechanism, after which the pres sure of the clamp is maintained by the counterbalancing means acting to force the clamp onto the paper with a pressure substantially equal to the pressure which caused the yielding of said means. This arrangement also lends itself readily to the variation of the work, since by adjusting the counterbalancing means to offer a reater or less resistance to the movement of the movable part the clamping pressure is varied. With this construction, in which the spring or weight measures and determines the clamping pressure ,it is evident that the clamping pressure may be I accurately regulated and that at each operation the clamping pressure will be the same definite amount. It is also evident that with the spring or weight arranged to react upon the clamp when the operating mechanism is thrown out a uniform pressure upon the pa- -per will be maintained throughout the cutting operation. In embodying these main my invention in an automatic cutting-machine I have employed other features "of invention which are not essential to the main features, but which contribute to the efficiency and simplicity of the machine.

The various features of the invention will be best understood from a detailed description of this machine, which I have illustrated I in the accompanying drawings, in which Flgure 1 1s a front elevatlon. Fig. 2 1s a 'wsectional elevation, the section plane being just inside the left end frame, Fig. 1. Fig. 3

- is a plan view with the paper-supporting table removed, and Fig. 4 is a detail view of mechanism to be described.

In the drawings, A indicates the knife-bar, mounted in guides in the end frames of the 'member of a clutch A of the clutch is secured to the drivmg-shaft a as the pawl machines. The knife-bar is supported and carried by yokes A, provided with rolls A which engage slots A ,-formed in the bar, the upper ends of the yokes engaging the top of the bar. As the bar is drawn down it is moved transversely to give a draw cut by means of a link A*, pivoted to the bar and frame. The yokes A are connected by links A with the ends of arms A, which are secured to a rock-shaft A The shaft A is rocked to reciprocate the knife-bar by means of a crank A carried by a gear A and engaging a slot A formed in an arm A, secured to the shaft A The gear A is driven through. a pinion A looselymounted upon the driving-shaft B and connectedwith one The other member B, and the clutch is engaged and disengaged by the movement of a cone A arranged to operate upon the clutch-arms A The clutch-operating cone A is moved by means of a yoke A loosely mounted on a shaft a and provided with arms engaging an-annular groove in the cone A The yoke is operated to engage the clutch A by the movement of a hand-lever A secured'to a rock-shaft A, which is connected with the yoke A by means of an arm A, having a slot which engages a pin A on the yoke. By operating the handle A the clutch A may be engaged to connect pinion A with the driving-shaft, and thus start the knife-operating mechanism. After the gear A has made a revolution and the knife-bar has been drawn down and returned to its upper position the yoke A is moved in the opposite direction todisengage the clutch by means of apawl a, carried by an arm c and arranged to engage a pin a Fig. 2, on the yoke. The arm a/is secured to the rock shaft-0f, which is operated from the knife-op erating arm A by means of an arm a secured to the shaft and connected to the upper end of a'rod 0, the lower end of which passes through a lug a on the arm A and carries nuts (1 The nuts a are so adjusted that as the knife-bar reaches its upper posltion the lug a strikes the nuts and draws down rod (i thus rocking shaft a This movement of shaft-a carries pawl a to the left, thus disengaging clutch A The lug a now prevents any movement of shaft a in the opposite direction until the arm A has been started upward. The pawl a must therefore be disengaged from the pin a to allow the yoke A to be moved to the right in starting the knife-operating mechanism. This is done automatically by a cam-surface a arranged to engage the end of a screw moves to the left and lift the pawl out of engagement with the pin a When the armA has started up and released the shaft a the shaft is rocked to carry the pawl into engagement with the pin a by rea- IIS 'se eo son of the connection of the shaft'a mechanism to be described.

The driving-shaft is provided pulley B and a loose pulley B with with a tight for carrying operating mechanism out of operation. The longitudinal movement of the shaft D is resisted by the pressure of an arm F on the end of the shaft. This arm is secured to a shaft the driving-belt, through which power is I F, and the pressure which it will apply to the supplied to drive the machine.

The paper is held during the action of the knife by means of a clamp C, mounted in guides C in the end frames and secured to the upper end of bars 0 The clamp is raised and is held in a raised position by the action of a weight C acting through suitable connections. The weight is secured to an arm G which projects rearwardly from a treadle C loosely mounted on the shaft A The treadle is connected by a link C with an arm C secured to a rock-shaft C, which carries arm 0 the outer ends of which are provided with slots engaging pins C. on the bars C By operating the treadle the clamp may be brought down upon the paper and will be returned by the weight when the treadle is released.

The mechanism for operating the clamp automatically is connected with the clamp through the bars G which are provided with rack-teeth at their lower ends arranged to be engaged by pinions c, secured to a shaft 0. The shaft 0 is connected with and disconnected from the other parts of the clamp-operating mechanism by means of a clutch, one member 0 of which is keyed to slide on the shaft 0 and the other member of which is formed on a worm-wheel c loose on the shaft. The clutch-sleeve c is pressed toward the worm-wheel by a spring 0 and is moved against the tension of the spring to disengage the clutch by a lever 0, having arms 0 which engage an annular groove in the clutchsleeve. The engagement and disengagement of the clutch is controlled from the knife-operating mechanism. For this purpose the lever a is connected by a rod. 0 with an arm 0 secured to shaft a so that when the shaft a is rocked by the engagement of lug a with nuts a the clutch-sleeve 0 will be moved out of engagement and held out against the tension of spring 0 until the arm A starts upward again, when the spring 0 will engage the clutch-sleeve. This movement of the sleeve 0 will rock shaft 41 and carry pawl a into engagement with pin a preparatory to the disengagement of clutch A Thus the clutch-sleeve c is engaged with the worm wheel as the knife-operating mechanism starts and is disengaged to allow the clamp to return to its upper position as the knife bar reaches its upper position.

The worm-wheel c is engaged and operated by a worm D, secured to a shaft D. This shaft and worm are so mounted that they may have a limited longitudinal movement, and they are one form of yielding part by the action of the weight F introduced into the connections between the driver and the clamp for throwing the clamp- I weight F end of the shaft D depends upon weights F secured upon arms F", which are secured to the shaft F. ne or more arms F and may be used and by adjusting the weight on the arm the resistance offered to the longitudinal movement of shaft D may be varied as desired. When the shaft D is rotated, the clamp will be drawn down upon the paper, and when the clamp'bngages the paper the resistance to the mov ment of the clamp will create an endwise thrust on the worm D, which thrust will beproportional to the pressure between the clamp and paper. This thrust is resisted by the weight F acting through the arms F and F, and the clamp will continue to be forced down onto the paper until this thrust is suflicient to lift weight F after which continued rotation of shaft D will cause a longitudinal movement of the shaft and a movement of arms F F and weight F The weight and connections therefore are one form of means for resisting t e movement of the yielding part which control the throwing out of the clamp-operating mechanism with a definite and regulated pressure. The resistance offered by the weight is definite and is the same each time the clamp is operated, and therefore the clamp will always be applied to the paper With a definite and fixed pressure, dependent upon the size and adjustment of the weight. The driver for operating the clamp consists of a clutch D one member of which is loosely mounted on the shaft D and the other member of which is secured to the shaft. The loose member is connected with a spiral gear D engaged and continuously driven by engagement with a spiral gear D secured to a shaft D, which carries a spiral gear D engaged by a spiral gear D, secured to the driving-shaft B. The clutch D is engaged and disengaged by the movement of a cone D arranged to engage the operating-arms D of the clutch. The longitudinal move ment of the shaft D serves to operate the cone D to disengage the clutch, and thus throw the clamp-operating mechanism out of operation. To effect this, an arm F is secured to the shaft F, and the end of this arm is connected, by means of a link F, with one end of a bell-crank lever F", the other end of which is provided with arms engaging an annular groove in cone D. When the shaft D is moved longitudinally by reason of the pressure between the clamp and paper, the shaft F is rocked and the clutch D disengaged. The pressure of the clamp is now maintained and the connections between said weight and the clamp, the worm D acting as a rack andthe wormlIO wheel as a gear to transmit the pressure applied to the shaft. Thus the clamp is forced onto the paper during the cutting with full clamping pressure. As the knife-bar reaches its upper position an arm F secured to shaft A strikes the end of a screw F mounted in an arm F secured to shaft F and rocks the shaft F against the action of weight F This relieves the pressure upon the connections between the shaft D and the clamp, so that the clutch-sleeve 0 may be readily disengaged from the worm-wheel c to allow the clamp to re turn to normal position. When the knife crating mechanism is started, the arm F moves away from screw F thus causing the pressure to be applied to the end of shaft D.

In the machine described the clamp-operating mechanism is controlled from the knifeoperating mechanism and is coupled with the clamp by the same mechanism which throws the knife-operating mechanism into operation, so that all the operations are automat ically performed whenever the operator throws the knife-operating mechanism into operation. It will be understood, however, t iat this arrangement is not essential, although it is advantageous in saving time. By reason of the fact that the automatic mechanism for operating the clamp is disconnected for the return of the clamp the opera tor may bring the clamp down upon the paper by pressing on the treadle before starting the machine, and thus avoid any danger of displacement of the sheets by the sudden engagement of the clamp with the paper. This is of importance in doing some classes of work.

The parts are so timed that the clamp will engage the paper and the clutch D be disengaged before the knife strikes the paper, and the paper will be clamped with full clamping pressure therefore before it is engaged by the knife. By varying the position of, the weight F the clamp may be made to clamp the paper with any desired force, and when the weight has been once adjusted for a certain clamping pressure the clamp will be applied to the paper with this pressure at each operation of the machine, thus enabling the paper to be clamped with even a greater degree of certainty and accuracy than has heretofore been practicable with hand-operated clamps and without loss of time or the exercise of skill or care on the part of the operator.

What I claim, and desire to secure by Letters Patent, is-

1. In a paper-cutting machine the combination of a clamp, mechanism for automatically operating said clamp to clamp the paper and mechanism for throwing said operating mechanism out of action when the clamping pressure reaches an unvarying definite or predetermined amount, substantially as described.

2. In a paper-cutting machine the combi- 1 nation of a clamp, mechanism for automatically forcing the clamp u on the paper including a movable part eac 1 operative movement of which requires the same definite pressure between the clamp and paper, and means whereby the movement of said part throws said mechanism out of operation, substantially as described.

3. In a paper-cutting machine the combination of a clamp, mechanism for automatically operating said clamp to clamp the paper, mechanism for throwing said operating mechanism out of action when the clamping pressure reaches a definite'or predetermined amount, and for actively maintaining said pressure during the cutting, substantially as described.

4. In a paper-cutting machine the combination of a clamp, mechanism for automatically forcing the clamp upon the paper including a yielding part through Whichpressure is transmitted to the clamp, means for resisting the yielding of said part with a definite and regulated force whereby the pres sure of the clamp upon the paper is defined and measured, substantially as described.

5. In a paper-cutting machine the combination of a clamp, mechanism for automatically forcing the clamp upon the paper including a yielding part through which pressure is transmitted to the clamp, means for resisting the yielding of said part with a definite and regulated force, whereby the pressure of the clamp upon the paper is defined and measured, and means for adjusting said force to vary the clamping pressure, substantially as described.

6. In a paper-cutting machine the combination of a clamp, mechanism for automatically forcing the clamp upon the paper including a yielding part through which pressure is transmitted to the clamp, means for resisting the yielding of said part with a definite and regulated force whereby the pressure of the clamp upon the paper is defined and measured, a driver for said mechanism and means controlled by the movement of said yielding part for disconnecting said driver, substantially as described.

7. In a paper-cutting machine the combination of a clamp, a driver and connections for automatically forcing the clamp upon the paper, and means dependent for its operation upon'an unvarying and definite resistance to the clamp for disconnecting said driver, substantially as described.

8. In a paper-cutting machine the combination of a clamp, mechanism for automat-' IIC ically forcing the clamp upon the paper, a

driver therefor, mechanism for disconnecting said. driver when the clamping pressure reaches an unvarying definite or redetermined amount and means for he ding the clamp in position during the cutting, substantially as described.

9. In a paper-cutting machine the combination of a clamp, a driver, connections beamp including a mounted to move means for forcing said worm and through the longitudinal of disconnecting tween said driver and cl worm-wheel and a worm longitudinally, longitudinally with a definite force, means operated the worm against said force for said driver, substantially as described.

10. I nation of a cl Wheel and a worm mounted to move longitudinally, an adjustable weight for applying pressure to move said worm longitudinally,

and means for disconnecting said driver through the movement of said. worm against the pressure of said weight, substantially as described.

11. In a paper-cutting machine the combination, of a paper-cutting knife, operating mechanism for the knife, a paper-holding clamp, clamp-operating means, and automatical controlling means adapted to effect the operative connection between the clamp and its operating means for moving the clamp into engagement with the pile of sheets and to automatically disconnect the clamp from its operating means when the clamping pressure reaches an unvarying definite amount, substantially as described.

12. In a paper-cutting machine, the combination of a paper-cutting knife, operating mechanism for the knife, a paper-holding clamp, clampoperating means, automatic controlling means adapted to effect the 0perative connection between the clamp and its operating means for moving the clamp into engagement With the pile of sheets and then automatically disconnect the clamp from its operating means when the clamping pressure reaches an unvarying definite amount, and means for automatically disengaging the clamp from the pile of sheets after the completion of the cutting operation, substantially as described.

13. In a paper-cutting machine, the combination of a pile-supporting table, a papercutting knife, means for operating said knife, a paper-holding clamp, operating mechanism adapted to move the clamp into engagement with the pileand then automatically disengage itself from the clamp, and means for maintaining an active pressure on the clamp during the cutting, substantially as described.

In a paper-cutting machine, the combination of a pile-supporting table, a papercutting knife, means for operating said knife, a paper-holding clamp, clamp-operating means, and means for counterbalancing the pressure between the clamp and paper adapted to automatically disconnect the clampoperating means from the clamp when overbalanced by said pressure, substantially as described.

11 a papercutting machine the combiamp, a driver, connections between the driver and clamp including aworm- 15. In a paper-cutting machine the combination of a pile-supporting table, a papercutting knife, knife-operating mechanism, a paper-holding clamp, clamp-operating mechanism'having a yielding part, counterbalancing means resisting the yielding of said part, and means actuated by the yielding of said part adapted to automatically disconnect the clamp from its operating mechanism, substantially as described.

16. In a paper-cutting machine the combination of a pile-supporting table, a papercutting knife, its operating mechanism, a paper-holding clamp, suitable clamp-operating mechanism having a yielding part, counterbalancing means resisting the movement of said part, means actuated by the yielding of said part of the operating mechanism adapte to automatically disconnect the clamp from its operating mechanism, and means for automatically raising the clamp from the pile after the completion of the cutting operation, substantially as described.

In a paper-cutting machine the combination of a clamp, mechanism for automaticallyforcing the clamp upon the paper, a counterbalancing device for determining the pressure between the clamp and paper, and mechanism for disconnecting the clamp and operating mechanism upon the yielding of the counterbalancing device, substantially as described.

18. In a paper-cutting machine the combination of a clamp, mechanism for automatically forcing the clamp upon the paper including a yielding part through which pressure is transmitted to the clamp, and a counterbalancing device for determining said pressure, substantially as described.

19. In a paper-cutting machine the combination of a clamp, mechanism for automatically forcing the clamp upon the paper including a yielding part through which pressure is transmitted to the clamp, and an adjustable counterbalancing device for determining said pressure.

20. In a paper-cutting machine the combination of' a cutting-knife, knife-operating mechanism, a clamp, and mechanism auto matically forcing the clamp against the work with the same definite pressure at successive operations, substantially as described.

In a paper-cutting machine the combination of a cutting-knife, knife-operating mechanism, a clamp, mechanism automatically forcing the clamp against the work With the same definite pressure at successive operations, and means for regulating said pressure, substantially as described.

22. In a paper-cutting machine the combination of a cutting-knife, knife-operating mechanism, a clamp, mechanism automatically forcing the clamp against the work with the same definite pressure at successive operations, and mechanism for automatically redrivingshaft, clutches mounted on said main turning the clamp after the cutting is completed, substantially as described.

23. In a cutting-machine having supporting-frames and a work-table attached thereto, a driving-shaft revolubly mounted in bearings in said supporting-frames; auxiliary shafts revolubly mounted in said supporting-frames and driven from said driving-shaft by means of clutches mounted thereon; a clamping-bar slidably mounted in said supporting-frames and operated by one of said auxiliary shafts; means on said auxiliary shafts for adjusting the amount of pressure exerted by said clamping-bar; means mounted on said auxiliary shaft for automatically stopping the movement of said clamping-bar when a predetermined pressure is exerted by it a cutter-bar slidably mounted in said supporting-frames and driven by the other auxiliary shaft; means on said auxiliary shaft for causing said cutter-bar to move toward the table to cut material placed thereon and to return to its normal position, and to automatically stop said auxiliary shaft when said cutter-bar has been returned to its normal inoperative position; and means operated by said cutter-bar for returning the clamping-bar to its normal inoperative position.

24. In a pa )er-cutting machine the combination of supporting-frames, a work-table attached thereto, a main driving-shaft revolubly mounted in bearings in said supportingframes, intermediate shafts driven by said shafts and driving-shaft, a clamping-bar slidably mounted in said supporting-frame and arranged to clamp the material to be out between it and the work-table, means for throwing said intermediate shafts into operation, means operable by said intermediate shafts for causing the clamping-bar to be drawn toward the table, and means independent of the cutter-bar operable by a counterbalancing device whereby a given pressure exerted upon the material to be cut by said clamp- ,'ingbar will automatically stop its further supporting-frames and movement.

25. In a paper-cutting machine the combitached thereto, a main driving-shaft revolu bly mounted in bearings in said supportingframe, means for revolving said main drivin g-shaft, intermediate shafts mounted in said driven from said main driving-slnft, a cutter-bar slidably mounted in said si'ipporting-frames, counterbalancing means acting on one of said intermediate shafts for producing a predetermined pressure upon the material to be clamped,means whereby said cutter-bar will be moved toward and 'from the worlr-table when said predetermined i pressure has been exerted, and means for antomatically stopping its movement when returned to its normal inoperative position.

26, In a paper-cutting machine the combination of supporting-frames and a work-table mounted thereon ,a main driving-shaft revolubly mounted in bearings in said supportingframes, auxiliary shafts revolubly mounted in said supporting-frames and driven from said main shaft, a clamping-bar and a cutterbar slidably mounted in said supportingframe and adapted to be moved toward and from the work-supporting table to clamp and cut material placed thereon, automatic means intermediate said main driving-shaft and said clamping and cutting bars arranged to cause them to perform the following cycle of operations to wit, a counterbalancing device and means to cause the clamping-bar to automatically move toward the table and clamp material placed thereon with a predeter mined pressure and thereafter to cause the cutter-bar to move toward the table and cut the material thereon, and means whereby both the cutter-bar and the clamping-bar will automatically return to their normal inoperative position and remain there until it is desired to make the next cycle of operations.

27. In a paper-cutting machine the combination of supporting-frames and a suitable table attached thereto ,an automatic clamping and cutting mechanism comprising a clamping-bar and a cutter-bar slidably mounted in said supporting-frames, and a single operating-lever, controlling means and a counterb alancing device for causing the clamping-bar to move toward the work-table and to clamp the material to be cut with apredetermined pres sure, and means whereby the cutter-bar will be caused to move toward the table and cut the material after a predetermined pressure exerted by the clampingbar, and means operated from the driving-shaft to cause said cutter-bar and clamping-bar to automatically return to their normal inoperative positions.

28. In a paper-cutting machine the combination of a clamping-bar, a worm-shaft capable of moving longitudinally in one direction, means for imp arting a vertical movement to the clamping-bar operated by the wormshaft, a counterbalancing device resisting the longitudinal movement of the wormshaft, and means for driving and stopping the Worm-shaft.

In testimony whereof I have affixed my signature in presence of two witnesses.

FRANK L. CROSS.

Witnesses:

IRA L. Fisir, KAT ARINE A. DUGAN.

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