US1409015A - Printing machine - Google Patents

Description

C. H. NEWTON.

PRINTING MACHINE. APPLlAT'loN FILED. SEPTA, 1920.

Patented Mar. 7, 1922.

4 SHEETS-SHEET 1.

ffy

C. H. NEWTON.

PRINTING MACHINE.

APPLICATION FILED SEPTA, 1920.

1,409,01 5. I mma Maf. 7,1922.

c. H. NEWTON.

PRINTING MAcHlNE.

APPLICATION FILED SEPTA, 1920.

1 ,409,01 5. lPatented Mar. 7, 1922- 4 SHEETS-s HEET 3 /C/GZ Eure 1f, Eo 1 I c.` H. NEWTON.

PRINTING MACHINE.

APPLICATION FILED SEPT-4| |920.E

1,409,015. Patented Mar. 7, 1922.

4 SHEETS-SHEET 4 Z Il iranien STATES CHARLES HENRY NEWTON, OF LONDON, ENGLAND.

PRINTING MACHINE.

1,409,0ii i Specification et' Letters Patent.

Patented Mar. 7, 1922.

Applcationvled September 4, 1920. Serial No. 408,144.

To ZZ @from it 'may concern:

Be it knoivn that l, Guantes Hnnnr Nn'w'roN, a citizen ot the United Kingdom of Great Britain and ireland, and resident oi' 24 Penistone Road, Streatham, London, S. lV., 16, England, have invented certain new and useful Improvements in Printing lvlachines, ot which the following is a specification, such as Will enable others skilled in the art to which it appertains to make and use the same. l

This invention relates -to machines Yfor simultaneously printing amounts in iigures and Words on checks, dividend Warrants, receipts and the like ot theI kind comprising tivo series ot' cylindrical type-holders one seri-es being employedi'or printing words and the other for printing the correspond ing numerals, the typeholders being mounted on parallel` shafts and being simultaneously brought into position tor printing.

lin such machines the cylindrical type holders have been mounted on sleeves each or which was provided with a toothed Wheel in engagement With a rack whereby on the movement ot' the rack the cylindrical typeholders for printing the ivords and the numerals `ivere simultaneously brought into position for printing so that the cheque or the like could be impressed With the Words and also With the numerals.

rlhe present invention has for its object to improve the construction ot such machines whereby they can be easily operated and will he very efficient in operation.

To this end in accordance with the present invention the machine comprises a key-h board and two series ot' cylindrical typeliolders one for the Words and the other i'or the corresponding numerals, the type-hold being simultaneouslyV operated by a toothed sector in engagement with atooth'ed gate adapted to be operated by a lever 'on the depression of a key.

The keysoi'i'the key-board are arranged in columns and veach column has a toothed sector and gate for actuating the type-holders'. Y y i Each gate is provided With a stop which is normally in engagement with a. pivoted lever and each key on being 'depressed actuatesa movable rod Whichtnrns the said lever on its pivot and permits the gate being operated until the stop thereon comes into contact with the movable rod.

A particular feature oi the machine is that means as hereinafter described are provided tor reverse Working when it is required to print from ten to nineteen in. as :tor example, the printing of seventeen shillings and eleven pence.

The cheques, dividend Warrants or the. like to be printed are placed on a pivoted platen which is adapted to lock the typeholders in position during` the printing operation.

The keys on heilig depressed are held in the depressed position by ay locking bar which also prevents more than one key in a column being' depressed the bar being operated to releasey the keys when the platen is being moved aivay from the machine.

`The invention will now be described with reference to the accompanying drawing wherein* Figs. l and 11 constitute a plan view ot the machine with the top removed.

Figs. 2 and 2 illustrate one of the columns of the machine and also show how the typeholders or registering wheels are rotated.

Figs. 3 and 3 illustrate a convenient way ot operating the platen.

Fig. 4 shows a side elevation ot the gate tor the hundreds and thousands columns of the pounds and Fig. 5 shows a sectional plan ot the mechanism for coupling together' the type-holders for the tens and units ot pounds.

0n the drawings c is the case of the machine vvithin which keys b are mounted the keys being arranged in columns corresponding to thousands, hundreds, tens, units ot pounds shillings and pence.

Each column tor the pounds, and the units columns tor the shillings and pence has ten keys, with the exception ot the thousand column ot the pounds which has only nine, and these keys are numbered from (l to V9. an additional key having ."& thereon, as clearly indicated in Fig. 2 being pret'- erably arranged in the tens column of the pounds.

In the tens columns of the shillings and pence only onekey 24 is provided.

The type-holders are located at one end olf' the machine and comprise a number of ivheels one set being marked with Words and the other with corresponding figures around their circumference. One of the typeholders `is mounted on the spindle 7c and the other on a spindle d. The type-holder von the spindle 7i consists of a number of I wheels e, f, g, 7L', i and j which are connected to separate concentrically arranged sleeves e2, f2, g2, if. Zand jg Vwhich can turn freely on the spindle 7c. The wheel e has marked around its circumference the words for thousands,rthe wheel the words for the hundreds, the wheel g the words for the tens, and also a portion of the words from ten to nineteen, and the wheel 7L the words yfor the units and the remaining portion of the words from ten to nineteen. The wheelz' has the words for the shillings from one to nineteem whilst the wheel j has the words for the pence from one to eleven. (')n the spindle (Z are mounted a corresponding number of wheels with sleeves, one of these wheels being indicated at c in Fig. 2. rlhe wheels on the spindle al however are marked with. figures corresponding to the words on the wheels mounted on the spindle 7u.

The spindles'd and are suitably mounted,

parallel one to the other, in the frame a of the machine.

If desired the wheels with the words marked around their circumference maybe mounted on the spindle d and the wheels with the corresponding figures or numeralson the Vspindle L.

The wheels e, f and g are attached to` sleeves e2, f2, and g2, respectively, adapted to rotate one within the other, and toV these sleevesv are respectively secured toothed wheels e. f and g in gear with pinion e, and y. These pinions are driven by operating wheels 6 7" and g" mounted on the spindle c, carried by the machine frame a. rFhe wheel 6 is 'attached to a sleeve Z, the wheel f" to a sleeve m and the wheel Q"to a sleeve n.

The wli'eels'on the spindle (Z corresponding to wheelsv e, f/ on spindle 7a are similarly connected to toothed wheels, one of which c is shown in Fig. 2 and these toothed wheels also gear with the wheels e, f, and g, so that the corresponding wheels for the words and figures on thel two spindles (Z and /c will Y be turned Vin synehronism.

' in words and figures in the manner herein?v y rThewvord wheels 71 and j are respectively attached to the sleeves h2, 2, and j connected to toothed wheels 7L', i and j gearing'with pinions 7L, z' l pinions are driven by the `operating wheels L", 2", andv jV also mounted on the shaft la and attached to concentric sleeves o, p, andf/ respectively. vThe pinions It, i, and j also drive the corresponding-` wheels on the spindle (l in synehronism with the word wheels la, if and .7'.1 iVhen therefore the pinions e", f, g, 7L, and j are driven they will turn the wheels on the spindles l and 71: to the same extent and therefore the typeholders will be set for printing a sum both after described.

and. j. These 0, p g being' secured 'to the sleeves o, p and Q, the'sectors beingrigidly secured to their respective sleeves vso thaty each sleeve will be rotated with its sector. Y

The sector a', as shown in Fig. 1 is made wider than any of the other sectors for a. purpose Vas will be' described hereinafter.V

The sectorsjl, m in the hundreds and thousands columns of the pounds are oper! ated by gates 1' which are capa-ble of vertical movement in frames l12 mounted in the machine. yThe .gates are provided with racks 13 gearing with thesectors Z', m and are actuated inthe manner hereinafter described.

Thegates r2 (Fig. 2) for operating the sectors a, o', p,-g, are mounted in frames 27 vwhich can be moved horizontally in brackets 11 secured to the base of the machine frame. The gates 712 larel provided with racks 13, A141i of which the rack 13 is normally in engagementwith itscorresponding sec-V tor, for 'example n as shown in Fig. 2. Y In this figure the connection between the sector a and its corresponding. type-holders is shown diagrammatically in order to simplify the description ofthe operation.l Y Y 'A counterweight s is connected to each gate by means offa lever t pivotally mounted in the frame at (Fig. A2) and connected to the gate by a pin and slot connection" 15. The counterweight s tends to lift the gate but is prevented from doing so by a stop u provided on the gates fr, 9'? and normally bearing against theV lowerend of a bar fu. This bar o is pivoted to the frames 12 and QTat 16 and is normally vgeld in the position shown in Fig. 2 aV spring 17. y

The bar o is adapt-edto be disengaged from the stop u, so as to enable the gat-e r to lbe raised by the action of the counter'weight s, by any one of a set of rods zo when this is pushed towards theVv rod o on the depression of its key. The rods w are arranged one above another in sets and are slidably mountA ed in frames 1S, mounted inthe frame a. The rods w are drawn towards the front of the machine by springs 19.

For the purpose ofmoving the rods fw lengthwise of the machine, in'orderrto dislevels, that when one of them is opera-ted by' its lyreyit will determinel the height to which the gate vis raised and thus also limit the Vturning movement. of the corresponding figure and wordwheels on the spindles d and As the marking on the type-holders is arranged relatively to the position of the rods fw it will thus be seen that when one of the rods w is operated the type-holders will be turned to bring into position ftor printing the words and figures corresponding to the key depressed.

A locking bar a' is provided tor preventing any of the remaining keys in a column from being depressed atter one of the keys in said column has been depressed, the said locking bars being held in their normal position by a spring y. Zhen a ke1 is depressed the bar :c is moved lengthwise against the action ot the spring y by a projection y on the key. rl-he projection then passes beneath the bar a, and the spring y thereafter pulls the bar in the opposite direction thereby retaining the key in the depressed position, while at the same time preventing any of the other keys from being depressed.

As will be seen in the drawing each key Z) is provided with a projection 2O and their lower ends pass through slots in the bar ai. Then therefore a key has been fully depressed and the bar has been drawn back by its spring g/ the barre will not have been drawn back sufficiently tar to enable the projection 20 of any of the other keys from passing through its slot so that none of the other keys can be depressed. The keys Z) are normally held in the raised position Vby means of springs fw.

The paper to be printed on is placed on to a pivoted platen s which may be operated in any suitable manner, but I prefer to use a bell-crank lever 1", one arm of which is adapted to contact with the platen and press it against the type wheels on the spindles le and d, when the other arm loi? the lever r is operated, Figs. 3 and 3a. As the platen is moved forward it contacts with two members g, p slidably mounted on the machine the said members being adapted to operate pivoted locking devices 0, n and cause them to engage the registering wheels and thus prevent any movement thereof during the printing operation.

The platen s is engaged in the printing position by a hook 21 on a clearance rod m connected with a resetting lever Z, which is in the form oi' a bell crank lever, pivoted in the frame a at 22. The return movement of the platen operates said lever Z as folL lows Then the platen is being moved awav trom the type-holders the clearance rod m is pulled with it. This causes the resetting lever Z to turn on its pivot 22 and engage a knob on the bar The knob zu projects into the path of the lever Z, so that the bar is moved against the spring'y, and thus releases any key that may have been depressed.

The free end of the lever Z, when raised by the opening movement of the platen also raises the lever t with the oounterweight s and thus lowers thel gates positively'.

On each gate r2 is a second stop o which in the normal position is in engagement with a pivoted locking bar u and holds it inoperative. ,When a gate r2 is raised, as therein before described, its stop fu is moved out ot' contact with the bar u thereby permitting engagement of this bar with a fixed recess t2 thus preventing any horizontal movement otl the gate r2 whilst it is being raised.

Zhen the resetting lever r restores the gate r2 to normal lowered) position, as hereinbelore described, the pin o disengages the bar u from recess t2 thereby leaving the ma- L chine reset and ready for reoperation.

Ribbon spools k2 7c3 are provided from which a ribbon 23 passes over the type-holders.

In order to set the type-holders for words and iigures above nine (9) it is necessary to turn the type-holders in a reverse direction to that hereinbefore described. For this purpose the rack 14: is brought into engagement with its corresponding sector. In order to effect this movement keys 211, which are of similar construction to and controlled in the same manner as the keys Z, are provided. Each key 24 operates a rod 25, slidably mounted in the frames 18 in a similar manner to the rods QU, and normally held inits inoperative position by a spring 19. These rods 25 are provided with projections A and when one of them is moved lengthwise by the depression of its key 24 the projection A. is adapted to push a short lever B and rock it upon its pivot C. The lower end of the lever B engages an arm D on the frame 27 of the gate r2 and draws the gate sidewardly thus bringing the rack 14 on the opposite side ot the gate into engagement with the corresponding toothed sector so that when the gate is lifted by its weighted lever the sector is rotated in the reverse direction. When the gate 712 has been moved to the right the depression oit any key Z in the units column causes the bar o to be released from the stop u and allow the gate r2 to be raised by the action of the Weight s. The rod fw, which has been actuated will then project into the path of the stop u and limit the vertical movement of the gate. In this manner the type-holders are caused to travel in the reverse direction thereby bringing figures and words for tens to nineteen corresponding to the key Z) depressed into position. Zhen the gate r2 commences its upward movement the bar u will be released by the pin o and will engage with the recess t.

similar arrangement is provided 'for setting the type-holders for figures and words from nine to nineteen in the pounds column. butl as in this case the gures and words are atlixe-d to two wheels (tens and ,llO

units)Y it is necessary to couple the dri ing mechanism toi.` these two sets ot wheels together.- For this purpose the gates fr: 'for the two sectors 7i', 0 are both mounted in the trame 2T ofdoubleV width so that both gates may be moved to the right simultaneousiy. raised separately when required in the normal ,position of operation, it is necessary to lock the two gat-es together. For this reason the secte-r a is made wider than the other sectors and the gate r2 tor the sector o is provided with. an additional rack s which; wlienthe traine Q7 hasbeen moved over so as to engage the racks lll with the sectors, engages with the sector n. so that the sectors fnl and 0 and thusl also their gates will be locked together. T he lV key inthe tens column of the pounds, also indicated by the reference 24, operates the trame tor the two gates tor the sectors n o and in this case also disengages the bar '2.' trom the stop n. ot the gate tor the sector a. As this gate .is now connected directly to the gate. tor the sector 0 it cannot be raised by the action Vot its counterweight s as the gate for the sector a 'is still locked by its har 'ai and stop u. ln order that the, word and tigure wheels may now be set to the required number between ten and nineteen the key in the units column. corresponding to the unit in the number required, mustbe depressed. This key will then Ymove its corresponding rod 'ze lengthwise oi? the machine and this will disengage the har 'u .for the gate ot' the sector o from the corresijionding stop u and project yinto thel path ot the said stop a. The two gates forthe sectors n and o will now be raised simultaneously bythe action ot' their weights .s and the upward movement will be limited by the'rod fw oit the unit key depressed.

For example7 it it-is desired to produce seventeen pounds the l key (key in the tens ot pounds column is depressed which'operates the gates in the manner described and locks the driving mechanism 'for the tens and units cylinders together.

vWhen the T key in the unit column is depressed the cylinders are revolved in the reverse. direction owing to the shitting ol' the gates by depression ot the l key in the tens column thus bringing seventeen in figures and words into position for printing. A

YThe arrangement for printing figures and words above nine in the case ot the shillings and pence columns operates in a similar nanner except thatthe iigures and words representing vten to nineteen in the case ot' shillings and ten and eleven in the case ot pence, are aliixed tol single cylinders instead ot two.

Any suitable ilorm ot type can be used As however, both gates can beV Moeniar on the registering wheels, but I preferito use the pin-prick type. Y,

It will be understood that various constructional modifications may be made inV the machine and I do not desire to restrict myseltl to that shown and described but reserve the right to make any modification therein falling within the scope ot the following` claims.

yWhat l claim and desire to secure by LetH shatt, a plurality of toothed wheels attached one to each type-holder and rotatable therewith. a plurality ot pinions, one of each ot which is in mesh Vwith one wheel of the figure type-holder andvalso in mesh with the correspondingl wheel ot' the word type- 'holder a plurality of toothed wheels gearing one with each pinionv1 a pluralityot racks indriving engagement one with each toothed wheel gearing with the pinions and atlanted to turn `each ot said last mentioned toothed wheels. weights connected to the said racks.I means normally preventing the lifting et" the racks by the weights,y a plurality of depressible'keys, means operable hy said keys ttor releasing the racks, thereby permitting the weights to litt their respective racks and .ea-use them to rotate the typeholders through the medium ot the toothed wheels and pinions, means for holding a' torni. tor example a check,V and of bringing the torni into contact' with the; type-holders, and means for returning the racks to their lowered positions against the action ot the weights. Y A

Q. ln a nuichine 'for simultaneously printing amounts in ligures and words on checks`l dividend warrants. receipts and the like the, comliiination with two series ot cylindrical type-holders one series being employed tor printing words and the other for printing numerals. the type-holders being mounted onparallel shafts and being simultaneously brought into position for printing o' a key board, a plurality of toot-lied sectors, mechanism between each ot'said toothed sectors and a type-holder `tor printing words and the Acorresponding` type-holder t'or printing figures, a. plurality ot rising and falling gates, one ot said gates being provided t'or each sector, a .weight connected to each ot said gates and' adapted to litt same, a plurality of keys on said key board, and mechanism between each ot said keys andthe gates, each ot said keys when depressed ico being adapted to release the gate and permit it to be actuated by the weight.

3. In a machine i'or simultaneously printing amounts in figures and words on checks, dividend warrants, receipts and the like the combination with two series of cylindrical type-holders one series being employed for printing words and the other for printing numerals, the type-holders being mounted on parallel shafts and being simultaneously brought into position for printing of a key board, a plurality of toothed sectors, mechanism between each of said toothed sectors and a type-holder for printing words and the corresponding type-holder for printing figures, a pluralityT of rising and falling gates, one of said gates being provided for each sector, a weight connected to each of said gates and adapted to lift same, a plurality of keys on said key board, and mechanism between each of said keys andthe gates, each of said keys when depressed bcing adapted to release the gate and permit it to be actuated by the weight; and removable means for locking the type-holders when turned to any desired extent.

t. A machine for simultaneously printing figures and words comprising a frame work, two shafts mounted in said trame, parallel one to the other, a plurality of separately rotatable type-holders for printing words mounted on one of said shafts, a plurality ot separately rotatable type-holders for ,printing figures mounted upon the second shatt, a plurality of toothed wheels attached one to each type-holder and rotatable therewith, a plurality ot pinions, one of each ot which is in mesh with one wheel of the figure type-holder and also in mesh with the corresponding wheel ot the word typevholder, a plurality of toothed wheels gearing one with each pinion, a plurality ot racks in driving engagement one with each toothed lwheel gearing with the pinions, and adapted to turn each of said last mentioned toothed wheels, weights connected to the said racks, mea-ns normally preventing the lifting ot the racks by the weights, a plurality of depressible keys, means operable by said keys for releasing the racks, said means comprising horizontally displaceable rods at varying leve-ls, means `lor holding a form, for example a check, and ol.'l bringing the `lorm into contact with the type-holders, and means tor returning the racks to their lowered positions against the action of the weights.

5. A machine `tor simultaneously printing words and figuresk comprising a frame, a plurality of depressible keys mounted on the frame, aplurality of movable rods, one adjacent to each key, said rods being arranged in sets and each being 'adapted to be displaced by one of the keys,- springs attached to said rods and holding themin their inoperative positions, a weight-controlled gate adjacent to each set or' rods, teeth on each `gate`r a stop secured to each gate, a bar pivotally mounted adjacent each gate and normally in engagement with said stop, said bar being adapted to be disengaged from the stop by any one of the rods ot each adjacent set ot' rods, a series oit toothed members one adjacent to each gate and adapted to be actuated by the teeth of the gate, a plurality of type-holders adjacent to and corresponding in number with the series ot toothed members, mechanism connecting the typeholders to the sectors, means for holding a sheet of paper and ot' bringing it into contact with the type-holders, means for locking and unlocking the type-holders, and means for preventing the improper sequence of movement of the type-holders when the keys are operated. Y

6. In a machine for simultaneously printing amounts in figures and words on checks, dividend warrants, receipts and the like oit the kind referred to the combination with a key-board of'4 two series of cylindrical type-holders one for the words and the other for the numerals, a toothed sector and mechanism connected to the type-holders the type-holders being simultaneously operated by the toothed sector, a toothed gate in engagement with said toothed sector, and a rod operating said gate on the depression ot a key.

7. A machine for simultaneously printing amountsv in figures and words on checks,

dividend warrants, receipts and the like ot the kind referred to comprising a key-board in which the keys are arranged in columns, two series of cylindrical type-holders, one

for the words and the other for the numerals, a plurality ot toothed sectors and gates arranged one for co-operation with the keys in each column, mechanism between the sectors and the type-holders tor operating said type-holders simultaneously and a plurality ot rods one for each key, said rods being adapted to actuate the corresponding gate when a key in the column is depressed, each column having a toothed sector and gate :tor actuating the typeholders.

8. A machine for simultaneously printing amounts in figures and words on checks` dividend warrants, receipts and the like ot the kind referred to comprising a key-board in which the keys are arranged in columns, two series of cylindrical type-holders, one for the words and the other for the numerals. a plurality of toothed sectors and gates arranged one for co-operation with the keys in each column, mechanism between the sectors and the type-holders for operating said type-holders simultaneously and a.

plurality of rods one for cach key, said rods being adapted to actuate the corresponding gate when a key in the column 1s depressed, each column having` a toothed sector and gate for actuating the typeholders; a stop on each of said gates, a pivoted bar normally in engagement with said stop, the said bar being adapted to be moved on its pivot and V'disengaged from the stop by one of the rods on the depression of a key.

9. A machine for simultaneously printing words and iigures comprising a plurality of depressible keys arranged in sets, a sliding rod for each key, said bars being also arranged in sets, a Vsliding rack opposite each set of rods, a weight lcontrolled lever for lifting the racks, a stop on said rack, said stop preventing the lifting action of the said lever, means whereby the sliding bars can, when moved by the keys, release the rack and allow the weighted lever to raise the rack or racks so released, two sets of opposite arranged teeth on the racks, a gear for engagement with the said teeth, rollers carrying letters and figures, toothed wheels on said rollers, said toothed wheels being in mesh with the said gear, so that the rollers will be driven simultaneously and mechanism capable of shittingv the rack to bring one set of teeth thereon out of engagement with the gear and to bring the other set of teeth into gear for the purpose of reverse rotation of the gear.

10. A machine for simultaneously printing figures and words comprising a plurality ot separately rotatable type-holders for printing words, and a plurality of separately rotatable type-holders for printing figures, a pair of parallel shafts on which the type-holders are mounted,. a toothed wheel attached to and rotatable; with each type-holder, a plurality of pinions one of each of which is in mesh with one wheel ofY the ligure type-holder and also in mesh with the wheel of the corresponding word typeholder, a toothed wheel in mesh with each of the pinions, a rack capable ot to and tro Y motion and applied to and adapted to turn each wheel engaging one ol the pinions, weights connected to the racks and adapted to lift the said racks, stops on said racks',

` pivoted bars against which the stops rest to prevent the lifting of the racks by the weights, depressible keys representing different words and figures, means between theV keys and the pivoted bars for disengaging the bai-strom the stops and freeing the weights, thereby pernnitting the weights to lift their respective racks and cause them to rotate the type-holders through the toothed wheels, means for holding arform, tor example a check, and of vbringing the form intov contact with the type-holders,

means for returning the racks to their lowered positions' against the action oi the weights, and means whereby the racks can be shifted to rotate the toothed wheels in a reverse direction.

1l. A machine for simultaneously printing ligures and words comprising depressible keys, sliding rods actuated by the keys,

springs attached to the rods and holding Y them in their normal position, a gate having on it two racks of teeth oppositely arranged, a toothed member between the said racks and adapted for engagement with one or the other of said racks, means for shifting the gate to bring, at will, either of the racks into engagement 'with thetoothed member, means for locking the gate when moved from one position to another, rollers bearing letters end ligures, gear between the toothed member and the rollers, means for holding Y the action of' springs for shifting the movable bars to free the gates, toothed members adapted tol engage theteeth on the gates,

rollers carrying raised letters and figuresV gearing between the rollers and the toothed members, vmeans for shifting the gates to bring either set, ot' teeth into engagement with the toothed members, for reverse rotation of the said members means for locking the gates when so shifted, means for supporting` a sheet of paper and for bringing it into `contact with the letters andV figures, and means for supplying ink to the letters and igures f f V13. yA machine Vfor simultaneously printing words and figures on checks, and other paper-forms, said machine consisting of a frame, means for holding paper forms, rollers carrying letters and figures, means for inking the letters and figures, means for Y bringing the paper 'forms into contact with the letters and figures, toothed gear for rotating the said rollers, some in one direction of rotation onlyrand others in both direc-- tions of rotation, movable gates having teeth in permanent engagement with some of gear for Vrotating the rollers and others having f two sets ,of teeth either of which can, by shifting theates, be brought into Vengagement with the other of the Vgear and by whichthe saidngear can: be turned in opposite directions, means for shifting the gates having two sets of teeth, means for locking the gates when so shifted, means for holding the gates against rotation of the gear and key-operated devices for removing the holding means and means such as Weighted le- Vers for lifting the gates when freed from the holding means and therein)T causing the gates to variably operate the gear according to the selected key-operated means.

ln Witness whereof I have hereunto set my hand in presence of two Witnesses.

CHARLES HENRY NEWTON. lVitnesses HERBERT EDWIN GRANT, HENRY FRANCIS HANBURY.

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