US514777A

US514777A - scott

Info

Publication number: US514777A
Authority: US
Publication date: 1894-02-13
Anticipated expiration: 1911-02-13

Description

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' B. W. SCO'I 'T. I WRITING-TABLET AND MANUSCRIPT HOLDER.

No. 514,777. Patented Feb. 13,1894.

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- B. W. SCOTT.

WRITING TABLET AND MANUSCRIPT-3 HOLDER.

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(No Model.) 3 Sheets-Sheet a B. W. SCOTT. WRITING TABLET AND MANUSCRIPT HOLDER. N0. 514,777.

Patented Feb. 13, 1894.

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UNITED. STATES PATENT FFICE.

BARTON W. SOOTT,'OF sAN JOsE, ASSIGNOR TO HIMSELF, AND WILLIAM RICE, OF SARATOGA, CALIFORNIA.

WRITING-TABLET 0R MANUSCRIPT-HOLDER.

SPECIFICATION forming part of Letters Fatent No. 514,777, dated February 13, 1894.

v Application filed January 17, 1893. Serial No. 458,637- (No model.)

To all whom it may concern.- Be it known that I, BARTON W. SCOTT, of San Jose, in the county of Santa Clara and State of California, have invented a new and- Improved Writing- Tablet or Manuscript- Holder, of which the following is a full,;clear,

and exact description.

playing the written matter in the proper position either for'the'speaker Whendelivering the speech or for the copyist or the type setter to work from, or for other purpoes.

The invention consists of a casing made in the shape of a book and provided with two winding rollers for the paper, and a spring actuated mechanism arranged in the said casing and adapted to be connected with either roller for imparting a traveling motion to thepaper in either direction.

The invention also consists of certain parts and details,*and combinations of the same, as will be hereinafter described, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a perspective'view of the improvement showing the cover of the book,

casing open. Fig.2 is a transverse section of the same on the line 22 of Fig. 5. Fig.3

is an enlarged transverse section of part of the improvement on the line 3 -3 of Fig. 5.

Fig. 4 is a similar view of part of the improvement on the line 41 of Fig. 5. Fig. .5 is a plan view of the improvement showing the cover and lid removed, parts being shown in section. Fig. 6. is a sectional side elevation of part of the improvement on the line 6-6 of Fig. 5. Fig. 7 is a longitudinal section of the improvement on the line 7-7 of Fig. 5. Fig. 8 is a similar view of the improvement on the line 8--8 of Fig. 5. Fig. 9

is a rear sectional side elevation of the same on the line 9-9 of Fig. 5. Fig. 10 is .a face view of one of the wheels of the mechanism; and Fig. 11 is a side elevation of a lever and ratchet wheel mechanism. v

The improved writing tablet and .manuscript holder is providedwith a casing A preferably made of a light sheet metal such as aluminum or other material, the casing being arranged in the shape of a bookas plainly illustrated in Fig. 1, with one of the covers A arranged to swing open to present a rectangular frame A hinged at'A tov the topedge of the rear side A of the casing A, the front end of the said rectangular frameA resting on the top edge of the front side A, as plainly shown in the drawings. This hinged frame A is locked in place at its front side by a spring pressed latch A pivoted to the inside of the front side A Under the rectangular frame A? is arranged a table B over which passes the paper 0 made in a continuous sheet or web and on which the subject matter is written or the matter written thereon is read from, in delivering a speech or copying the subject matter, as the case may be. The table B is supported at its front on. posts B erected inside of the casing A, at the front side A thereof, as plainly shown in Fig. 2, the rear of the, said table resting on a longitudinally-extending partition A formed in the casing near the rear end A as plainly illustrated in Figs. 2 and 5. The front and rear ends of the table 13 are bent downward to form'flanges B fitting over the posts B'- a continuous sheet of any desirable length, and is adapted to be Wound up or unwound from a transversely-extending paper drum D, from which the paper passes over a roller E located in the upper end of the casing A and journaled at its ends in the front side A and the partition A of the said casing, as plainly shown in Fig. 5. The top of the roller E is in alignment with the top of the table B, so that the paper passes from the roller onto and over the top of the table B, to finally pass from the lower end of the latter under the frame A upon a second roller F arranged transversely in the lower end of the casing A and likewise journaled in the front and rear sides of the casing A. The paperpasses fromthelowerend of the roller F to a paper drum G arranged in front of the roller F and extending transversely. parallel to the other drum D and the rollers E and F, as will be readily understood by reference to Fig. 5. In order to hold the ends of the paper in place on the drums D and G, I provide each of the latter with a suitable clamping spring (see Fig. 5), or other device for the same purpose. Now, it will be seen that when the paper drum G is turned in the direction of the arrow (1., then the paper C is wound on the said drum and unwound from the drum D, the paper passing over the table Ain the direction of the arrow 1). \Vhen, however, the drum D is rotated in the direction of the arrow 0, then the paper winds up on the drum D and unwinds from the drum G, the paper then passing over the table B in the inverse direction of the arrow 1).

In order to impart the movement described to the paper drums D and G, I provide a spring action mechanism I-I, arranged within the casing A and constructed in such a manner as to be connected with either of the said drums to rotate the same in the directions mentioned for imparting a traveling motion to the paper 0 in either a forward or backward direction, that is in the direction of the arrow I), or the inverse direction thereof. In order to regulate the speed of this spring action mechanism H, I provide a governor I, also arranged within the casing A and connected with the spring action mechanism to govern the speed of the same to regulate the speed of the traveling sheet of paper. This spring action mechanism presently to be described, is provided with a transversely extending shaft H journaled in suitable bearings held on the front and rear sides A and A of the casing A, the said shaft being located between the drums G and D, as plainly illustrated in Fig. 5. The forward end 11 of the shaft H projects into a recess formed on the outside of the front side A of the casing A, as illustrated in Fig. 2, and this outer end of the shaft H is made square for receiving a key to wind up the spring action mechanism, as will be hereinafter more fully described.

on the shaft 11 is fitted a sleeve 11 secured in place by a pin H, and on the rear end of the sleeve H is secured a pin H engaged by the inner end of a coil spring J, connected at its outer end with a pin or hook J secured to the inside of a spring barrel J having a hub J mounted to rotate loosely 011 the shaft H, see Fig. 2. On this hub J of the spring barrel J is secured a pin or hook J similar to the pin or hook II and connected with the inner end of a second coil spring J attached at its outer end, to a pin or hook J secured to the inside of the rim of a second spring barrel J the hub J of which is mounted to rotate loosely on the shaft II. This hublike- Wise carries a pin and is connected with a third coil spring attached at its outer end to a third spring barrel also mounted to rotate loosely on the shaft II, and also connected with a fourth coil spring attached at its outer end toa fourth spring barrel .1", having a hub J mounted to rotate loosely on the shaft H. The sleeve II previously mentioned and connected with the first coil springJ is provided at its front end with a ratchet wheel 11, see Figs. 2, 5 and 9, engaged by a pawl I-l hung on a stud Il secured to the inner surface of the front side A of the casing A, the said pawl being pressed on by a spring 11 to hold the pawl in mesh with the ratchet wheel H, to prevent a return movement of the shaft 11' after the several springs are wound up.

When the several coil springs are unwound and it is desired to wind up the mechanism, then the operator applies a key or other tool on the square end H of the shaft H and turns the same in the direction of the arrow (1', so that the sleeve 11 secured on the said shaft winds up the several springs J, J, &c., as the said springs are coupled together in the manner above described. As a return movement of the shaft II is prevented by the pawl H engaging the ratchet wheel II", the several springs unwind, causing the barrel J to turn in the inverse direction of the arrow 61'. until the entire mechanism is run down. This spring actuating mechanism 11 drives the governor I, which latter regulates the speed of the machine, and for this purpose, the hub J carries a gear wheel K in mesh with agear wheel K mounted to turn loosely on a stud K secured on the rear side A and the partition A as plainly shown in Fig. 5.

On the face of the gear wheel K is secured a larger gear wheel K in mesh with a pinion K mounted to rotate loosely on the shaft 1' of the governor I, the rear face of the said pinion carrying a gear wheel K in mesh with a pinion K lnountedto rotate loosely on a shaft K' also held on the rear side A and the partition A On the hub of the pinion K is secured a large gear wheel K in mesh with a pinion l secured on the shaft 1 of the governor I. The shaft 1 is journaled in suitable bearings in thesides of the casing A and carries near its frontend a U-shaped arm I on which are fulcru med the ball levers I engaging with their short arms a grooved pullev I secured on a sleeve I mounted to turn with and to slide on the shaft 1, the sleeve being mounted for this purpose loosely on the shaft 1 and is provided withaslot Fthrough which extends a pin or screw 1 secured on the said shaft 1.

On the front end of the sleeve I is fastened a disk 1 adapted to move in contact with a disk or ring I made of'felt or other suitable material so that the frictional contact between the two disk'sI and I causes a uniform running of the governor,thus controllingthe speed of the entire machine. The felt disk I is secured on a diskl made of sheet metal or other material and fastened to the inner surface of the front side A of the casing A. A spring 1 is connected at one end with the rear face of the pulley 1 the said spring being coiled on the shaft 1 and cured on the said shaft 1.

attached at its'other end to a collar I? so The spring I serves to draw the sleeve I with its disk I? rearward out of contact with the felt disk or ring I, when the speed of the machine decreases. It is understood'that the rotary motion given by the springactuated mechanism H to the hub J, as above described, causes a turning'of the train of gear wheels K, K, K K K K K and 1 so that the shaft 1' is rotated at a high rate of speed, and-the governor ball-levers I are thrown outward to move the disk 1 in frictional contact with the disk I to regulate the'speed of the machine,

as above described.

In order to turn the paper drum D in the direction of the arrow 0, from the springactuating mechanism H, the following device is provided. The gear wheel K previously mentioned alsomeshes into a pinion K mounted to rotate loosely on the rear end of the shaft H of the aforesaid mechanism H, as will be readily understood by reference to Fig. 5. On' the rear face of this pinion K is secured a large gear wheel K in mesh with a pinion K mounted to rotate loosely on short shaft K journaled in suitable bearings on the rear side'A 'and the partition A of the casing On the hub of this pinion K is secured a large gear wheel KY adapted to be engaged by a pinionD, secured on the reduced end D yof the shaft of the drum D. The rear reduced' end ofthis shaft D is journaled in suitable bearings held in a lever D arranged vertically and pivoted at its lower end at D tothe inner surface'of the rear side A of the casing'A. The upper end of the lever D is reduced to form a handle which extends throughan opening A in the rear side of the frame A see Figs. 1 and 7; so that the end of this lever can be taken hold of, on top of the c'asingA, by the operator, when the cover A is swung back. The longitudinal swinging motion of the lever'D is limited by'a stop pin, not shown, and secured to the back of the lever D near its handle end, the said pin being adapted to engage either of two dents D orD formed in the rear side A as shown in Fig. 7. 'The' movement of the lever G is,

limited'by a similar stop pin adapted toengage recesses or dents G formed in the rear side A, see Figs. 4 and 7. Now, it will --be seen that when the lever D is moved to the left," the pinion D is thrown in mesh with the gear wheel K and as the latter receives a rotary motion by the train of gear wheels K K and K from the revolving gear wheel K driven from the spring actuated mechanism H, a rotary motion is given to the paper drum D in the direction of the arrow 0', to wind up the paper.

' In. order to rotate the paper drum D by hand at the will of the operator, I provide the mechanism L arranged in the upper end of. the casing Abetween the partition A and the rear side A see Figs. 5 and 7. When the lever D is moved tothe-right, the pinion D is thrown in mesh with a large gear wheel L mounted to rotate loosely on a short shaft L held in suitable bearings in the partition A and the side A. A lever L is loosely fulcru med on the shaft L and is provided with an upward extension adapted to pass through a notch formed on the frame. A near the opening A, as shown in Fig. l. The outer endof this extension of the lever L carries a button L adapted to be pressed on by the operator. .Onthe lever L is held a spring pressedpawl L engaging the gear wheel L so that when the button L is pressed the saidlever L swings downward and the pawl L? imparts a rotary motion to the gear wheel L, which, on account of being in mesh at the time with the pinion D, rotates the paper, drum D in the direction of the arrow 0'. A spring L is connected with the lever L to draw the latter back into its uppermost position as soon as the pressure on the button L ceases. A dog L engages the gear Wheel L to prevent a return movement of thelatter. pressed down regulates the distance the sheet of paper 0 isv wound on the paper drum D. Usually, however, the button L is pressed such a distance as to move the paper forward the distance between two lines ruled on the paper, so that every time the button L is pressed a new line is presented to the operator writing on the paper, the hand being sup posed to be stationary. When the lever D is in a vertical position, as shown in Fig.7 its pinion D is out of mesh with either the gear wheel K or the gear wheel L. This inter mediate position of the lever D is necessary so that the paper can unwind from the paper The distance the button L is drum D and be wound'up on the drum G by a pin N projecting from thebrake lever N arranged between the partition A andthe rear side A the fulcrum of the lever being on the partition. A spring N secured on' the casing is connected with the said lever N so as to move the latter upward to hold the brake block'N in frictional contact with The brake block Nis held on the brake wheel I to lock the governor and consequently the actuating mechanism H with the said governor, as before explained. The free end of the brake lever N is pivotally-connected with an arm N connected by an articulated joint N with one arm of a bell crank lever N pivoted to the easing and provided on its upper arm with a button N projecting through a recess in one edge of the frame A so that the said button is under the control of the operator. A tripping mechanism 0 is connected with the brake mechanism N, and for this purpose, the lower or downwardly-extending arm of the bell crank lever N is provided with a friction roller N and a fixed L'shaped arm N adapted to engage opposite sides of cams 0' and 0 formed on the front face of a gear wheel 0 mounted to rotate loosely on a shaft 0 journaled in the partition A and the rear side A. The gear wheel 0 is in mesh with a pinion O mounted to rotate loosely on the shaft F of the roller F, the said pinion 0 being provided at its front face with a series of recesses 0 arranged in a circle; see Fig. 10, and adapted to be engaged by a pin P projecting rearwardly from the rear face of a grooved shifting wheel P, mounted to slide on and to turn with the shaft F of the roiler F; see Fig. 5. The hub P of the wheel P is provided for this purpose with a slot P engaged by a pin P fastened on the shaft F, the said pin permitting the wheel P to slide to engage the pin I" with one of the apertures O and at the same time the pin causes the wheel P to revolve at the time the roller F is turned by the traveling of the paper. The groove in the periphery of the wheel P is engaged by a pin P projecting from a lever P fulcrumed at its lower end at P on the rear side A, as plainly shown in Fig. 3. The upper end of this lever P extends through an aperture A in the frame A, so that the outer end of the lever is under the control of the operator, who can shift the lever transversely to move the pin P in or out of contact with an aperture 0. In order to lock the lever P in place in either an inward or outward position, I engage the said lever, with notches P and P formed in a bar P extending transversely and secured on the partition A and the rear side A as illustrated in Fig. 5. over the roller F, the latter is rotated and when the lever P is then shifted transversely to move the pin P in contact with an aperture O in the gear wheel 0 then the latter is rotated with the said roller F and imparts a rotary motion to the grear wheel 0 so that the cams O and O on the said gear wheel 0 can act on the friction roller N so as to open the articulated joint N connecting the arm N with the bell crank lever N This is done to stop the traveling motion of the paper at the time the latter moves in the inverse direction of the arrow 1), and has moved the distance of one page, that is the hen the paper travels distance exposed to view in the opening of the frame A When the lever N is in its usual position, as shown in Fig. 6, then the brake shoe N is applied on the wheel I the button N of the bell crank lever N then being in an uppermost position, and the articulated joint N being open. Now, when it is desired to start the spring actuating mechanism ll, the operator presses on the button N so that a swinging motion is given to the bell crank lever N which, by its connection with the arm N pivoted to the lever N causes the latter to swing downward, thus moving the brake shoe N out of frictional contact with the wheel I. As the governor is thus released or unlocked, the spring actuating mechanism H, by its springs, as above described, can impart a rotary motion to the hub J which sets the several trains or gear wheels in motion. It is understood that when the wheel P is with its pin P, out of contact with the gear wheel 0, the latter, as well as the gear wheel 0 is ata standstill and the cams 0' and O are out of action as regards the opening and closing of the articulated joint N connecting the arm N with the bell crank lever N The paper on the under side of the roller F is pressed in contact with the latter near the middle by a roller Q made of felt or other suitable soft material and journaled in a frame Q projecting from a transversely-extending shaft Q mounted to turn in suitable bearings arranged in the front side A and partition A A spring Q is coiled on the said shaft Q and fastened with one end to the side A and at its other end on a pin secured on the shaft Q so as to hold the roller Q always in contact with the under side of the paper C to press the latter against the roller F. The latter, as well as the roller E in the upper part of the casing A, is preferably covered with rubber or other suitable elastic material to increase the adhesiou of the paper on the said rollers to prevent slipping. A brake shoe S presses the paper'on the paper drum G, the said brake shoe being arranged on the under side of the paper and secured on an arm S projecting from a transversely-extending shaft S journaled in suitable bearings in the side A and the partition A A spring S is coiled on one end of the shaft S and secured at one end to a disk S fixed to the side A, and provided with a series of apertures S one of which is engaged by the end of the spring. The latter is attached at its other end to a pin on the said shaft SZthe saidspring serving to holdthe arm S upward to move the brake shoe S in firm contact with the paper on the increasing and diminishing of the roll of paper, as it accnmulates or lessens on the drum G. The disk S serves to increase or decrease the tension of the spring 8. The bearings T for the shafts of the drums G and D, and the shafts of the rollers E and F on the front side A, are preferably of the construction illustrated in Fig. 9, each bearing T being formed with a semicircular lower seat part T and a beveled top part T secured on a spring T fastened to the lower part T. One side of the latter is slightly beveled so as to form. a V-shaped groove when theupper part T is over the seat for the shaft, as plainly shown in Fig. 9. Now, it willbe seen that in order to place one of the shafts in its bearing T, the end is simply passed down the beveled parts of the bearing so that the upper part T finally swings to one side, its spring T permitting such movement until the shafthas dropped into the opening in the lower part T. 4 The spring pressed upper part T then snaps over the end of the shaft and holds the same securely in place in the bearing. 'As previously described, the opposite bearings of the shafts G and D are in the levers G and D respectively.

The operation is as follows: In using the machine for writing on the paper 0, the operator places his right hand and pen or pencil on the manuscript paper in the position most convenient for him, with his left hand on the open cover A, so asto hold the latter-in an open position. The operator then places the left fore-finger on the button L -held in an uppermost position by the spring L and on pressing the said button, the lever L by its pawl Liturns the gear wheel L in mesh with the pinion D, so that the paper drum D winds up the paper, the drum turning in the direc tion ofthe arrow c',and the paper then moving over the'table B in the inverse direction of the arrow 1). Now, as soon as the operator has-finished a'line, he presses the button L down again to again move the paper forward, the distance of one or two lines, according to the depth the button L is depressed. The paper 0 is of sufficient length to enable a reporter or'other person to note down a lengthy speech or other matter. Now, in case the. operator desires to review and correct the writings wound up on the paper drum 1) he moves first the lever P into the notch P so that the pin P is disconnected from the pinion 0 He then shifts the lever G to the right to throw the pinion G in mesh with the gear wheel K He then moves the lever D to the left to throw the pinion D out of mesh with the gear wheel .L; the lever then standing in avertical position with its pinion out of mesh on either side. The operator next presses the button N to disengage the brake block N from frictional contact with the brake wheell, so that the power of the springs of the sprin gactu atin g mechanism 11 sets the several gearings in motion in such a manner that the shaft G turns in the direction of the arrow at to engage the same in the notch P at the The operator then shifts the lever G to the left to move the gear wheel G out of mesh with the gear wheel K The operator now reads off the written matter or copies the same or otherwise disposes of the first page so-called, that is the matter appearing in the opening of the frame A As soon as this has been done, the operator presses the button N so that the spring actuating mechanism is again started, whereby the paper is Wound up on the paper drum D, and at the same time unwinds from the drum G and rotates the roller F, which, by the pinion O,rotating with it, imparts a rotary motion to the gear wheel '0 so that the cams O and O thereon actuate the bell crank lever N by one of the cams coming in contact with the friction roller N and the arm N so as to hold the brake-block N off the wheel I -until the paper has traveled the distance of one page, after which the friction roller N and the armN ,passotf the respective camto again permit the spring N to swing the lever N upward, so as to apply the brake to stop the actuating mechanism at the time the bottom of the first page disappears in the upper end of the opening of the frame A A second page appears now in the opening of the frame A", and is disposed of as described, after which the operator again presses the button N to start the spring actuating mechanism H to cause the paperto travel in the inverse direction of the arrow 1), at the same time actuating by the roller F, the gear wheel 0 carrying the cams O and 0 which automatically actuate the brake mechanism N, to apply the brake block N at the time the bottom line of the second page disappears in the upper end of the opening of the frame A It will be seen that in this manner the 'machine will display before a public speaker his notes br his full manuscript, for use in delivering the speech, or the written matter is presented before a type setter, as his copy, or before a player at a musical instrument, as his written music.

I do not claim the governor and the brake mechanism specifically, as these parts form the subject matter of another application for a patent, filed May 31, 1893, Serial No. 476,007.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. In a device of the class described, the com bination,with a casing having an apertured top frame arranged under one cover, a table located under the frame and adapted to support the paper, rollers journaled in the ends of the said casing and onto which passes the paper from the ends of the said table, and paperwinding drums arranged in the said casing between the said rollers and onto which wind the ends of the paper, of a ratchet mechanism adapted to be operated by hand, for winding the paper at intervals on the upper winding drum, a motor arranged in the casing independently of the said ratchet mechanism, separate handle levers to shift either of the drums into gear with the motor to impart a traveling motion to the paper in either direction, an actuating button and means for starting and stopping the mechanism, substantially as described.

2. In a device of the class described, the combination with a spring actuating mechanism, a train of gear wheels connected with the said mechanism, and a governor for automatically regulating the speed of the said train of gear wheels, of a spring-controlled brake mechanism, constructed to act on the governor, for stopping and starting the same, the train of gear wheels and spring-actuating mechanism, substantially as shown and described.

3. In a device of the class described, the combination with a casing having an apertured top frame and a table under the said frame and over which passes the paper, of rollers journaled in the ends of the said casing and over which pass the ends of the paper after leaving the said table, paper winding drums arranged in the said casing and onto which wind the ends of the paper, a spring actuated mechanism arranged in the said casing, a train of gear Wheels connected with the said spring actuated mechanism, a governor driven from the said train of gear wheels, and means substantially as described, for throwing either of the said paper winding drums in gear with the said train of gear wheels, substantially as shown and described.

4;. In adevice of the class described, the co mbination with a casing having an apertured top frame and a table under the said frame and over which passes the paper, of rollers journaled in the ends of the said casing and over which pass the ends of the paper after leaving the said table, paper winding drums arranged in the said casing and onto which wind the ends of the paper, a spring actuated mechanism arranged in the said casing, a train of gear wheels connected with the said spring actuated mechanism, a governor driven from the said train of gear wheels, means substantially as described, for throwing either of the said paperwindingdru msin gear with the said train of gear wheels, and a brake mechanism for stopping and starting the said driving mechanism composed of the gear wheels and spring actuating mechanism, substantially as shown and described.

5. In a device of the class described, the combination with a casing having an apertured top frame and a table under the said frame and over which passes the paper, of rollers JOUF- naled in the ends of the said casing and over which pass the ends of the paper afterleaving the said table, paper winding drums arranged in the said casing and onto which Wind the ends of the paper, a spring actuatedmechan ism arranged in the said casing, a train of gear wheels connected with the said springactnated mechanism, a governor driven from the said train of gear wheels, and means substantially as described, for throwing either of the sa d paper winding drums in gear with the said train of gear wheels, a brake mechanlsm for stopping and starting the said drivlng mechanism composed of the gear wheels and spring actuating mechanism, and a device actuated from one of the said rollers to automatically hold the said brake mechanism in areleasing position, to permit the driving mechanism to actuate one of the said winding drums to wind up the paper for a certain distance, substantially as shown and described.

6. Adevice of the class described,provided with a spring actuating mechanism comprising a winding shaft, a coil spring connected at its inner end with the said shaft, a spring barrel connected with the outer end of the said spring, a second spring connected with the hub of the said spring barrel, a second spring barrel connected with the outer end of the said second spring and mounted to rotate loosely on the said shaft, a third spring conneeted with the hub of the said second spring barrel,and a fourth spring barrel mounted to rotate loosely on the said shaft and which is connected with the outer end of the said third spring, substantially as shown and described.

7. A device of the class described, provided with a spring actuating mechanism comprising a winding shaft, a coil spring connected at its inner end with the said shaft, a spring barrel connected with the outer end of the said spring, a second spring connected with the hub of the said spring barrel, a second spring barrel connected with the outer end of the said second spring and mounted to rotate loosely on the said shaft, a third spring connected with the hub of the said second spring barrel, a fourth spring barrel mounted to rotate loosely on the said shaft and which is connected with the outerend of the said third spring, and a ratchet and pawl mechanism connected with the said shaft for preventing a return movement of the latter, substantially as shown and described.

BARTON W. SCOTT.

\Vitnesses:

C. R. SrETsoN, WM. Bros.