USRE9489E - hornttm - Google Patents

Description

W. H. HORNUM, ZSHeets-Sheet 1.

Assignor, by-mesne assignments, to THE RAILWAY REGISTER MANUFACTURING G0. Pare Reg1s.ter.

Reissued Dec, 7,1880. 39-

- INVEJVTbR By his .dtlnrneys I k .W. H. HORNUM, Assignor, by mesne assignments, to THE RAILWAY REGISTER MANUFACTURING CO. Fare Register. No. 9,489. Reissued Dec. 7,1880.

2 Sheets-Sheet 2.

By his Attor s k B 7 7 9612% {o hlr UNITED STATES \VIIiLlAM. i -l. HOBNUM, OF NE? YORK, ASSIGNOR, BY MESNE ASSLGNMENTS, TO THE RQiIL'iVAY REGISTER MANUFAQTURING (JOMPANY, OF BUFFALO,

new ronK.

FARE-REG is rsn SPECIFICATION forming part of Beissued'Letters Patent No. 9,489,.dat-ed December 7, 1880.

' UriginalNoi 194 ,9113, dated ,Septombcr 4, 18:17; Reissue No. 9,008, dated Decemb r 30, 1879. Application for reissue filed 1 June J9, 1880.

To all whom it play concern Be it known that I, WILLiAM H city, county, and State of New York, have invented certain new and useful Improvements in Faro Registers, which improvements are fully set Forth in the followin g specification.

Myinvention relates to counting or tallying machines more especially designed for fareregistering purposes, and belongs more particularly to the classof such registers now known as duplex mach ines or registeringmachines, in which are combined two sets of registering mechanism simultaneously operated in connection with..an alarm by the same prime mover, one of said mechanisms being for the purpose of recording consecutively the number of fares taken. on each trip of the car or vehicle, and capable of being set to zero or the starting-point at the beginning of each trip, constituting what is commonly called a trip-register, while,thc' other of said mechanisms is for the purpose of recording consec' is received, to operate the register and sound the alarm, which notifies the passenger of the proper registry of his fare.

M 3' present invention constitutes an improvement on the registers shown in Letters Patent No. 167,057, granted to John B. Benton, August 2a, 1875, and 'in'thc several Letters Patent heretofore gran ted to the Hornum Patent Ll-legister Manuiacturing Company as my as- -signec, one of which is dated December 25,

1 877, and numbered (reissue number) 8,014, while another is No. 193,958, dated August 7, 1877; and my improved apparatus embodies in its organization a permanent or general register, a trip-register, an alarm, an actuator or prime mover common to said general and trip Hermon, a citizen of the United States, rcsiding'in the registers and to the alarm, mechanism to stop or prevent thetrip-register from being turned or carried beyond zero orthe starting-point independently of its prime mover, and mechanism which indicates the number of times said trip-register is reset or turned to the starting-point independently of the general register, while permitting said trip-register tobe turned forward in the counting process 0011- soon ti vel van dsi'niultanconsly with the general register past its zeroor its starting-point without operating the indicator mechanism, said indicator mechanism registering, .in other words, as resetting operations only the resetting movement-s ot' the trip-register which are independent of the movements of the general register and prime mover.

My said apparatus also embodies a key-hole guard, a key or device for resetting the tripregister independently of the general register, a'latch or device for locking the prime mover of the register while resetting the trip-register,

and a catch forretainin g the said latch in its locking position and for imparting motion to the trip-indicator or zero-register.

My invention consists of certain new com-' binations of the devices or mechanism above enumerated, which are recited at the close of the specification, the object of this invention being to provide an improved duplex fare-register which is incapable of fraudulent manipulation on the part of the fare-collector or con ductor.

In the accompanying drawings, which represent my said new combinations of mechanism as embodied and organized in the best way known to me at the date of filing my application for the original patent, Figure l is a face or front view of the-apparatus closed up and ready for use. Fig. 2 is a similar view thereof, the cover or front plate of the inclosing.

casing being broken away to expose the internal parts of the mechanism. Fig. 3 1s a face Fig. 6 is a longitudinal central section through the machine; and Fig. 7 is a detached view of the resetting devices on a scale larger than that of the previous figures.

The casing A, which incloses the operative parts of the machine, is made of sheet metal or of any other suitable material, in the form best adapted for the purpose for which the register is to be used, the shape shown in the several figures being the better one for the reception of the mechanism as organized in the presentinstancel I w In the casing A is situated a slide-actuator or prime mover, B, which serves to actuate the single-trip register and the general register simultaneously for consecutive counting in con-' nection with the alarm, said alarm being sounded once'for each actuation of the registeringmeclianism in the counting or tallyin g process to announce the proper operation of the machine and the registration of the fare. Said prime mover is guided in its reciprocations by pins or screws aP b f", passing through slots (1/ bftherein into the upper side of a plate, G, (see Fig. 3,) which plate is secured in thecasing A, and constitutes a central partition (running parallel with the front and back plates of the casing) between the single-trip register on one side and the general register and the alarm on the opposite side, while supporting the I principal working parts'ot' the apparatus.

The outer end of the prime mover extends through a slot in the edge of the casing, and is provided with a finger-piece by which to operate it. On the under surface of the prime mover is secured a pin, 9, which extends through a slot in the partition-plate G, Fig; 4, and is actedupon byaspring, h, which spring has a tendency to throw the prime mover up to the position shown in the several figures of the drawings, which is the normal position of the prime mover, from which it is drawn outward, in the example I have shown, to actuate the machine.. The said prime mover is provided with two teeth or pallets, 0 d, which respectively engage with an escapement or ratchet-wheel, 1, serving to impart motion to the single-trip register, with which it is connected, in the counting process. These pallets are situated on opposite sides of the escapement-wheel I, the pallet 0 engaging one of its teeth when the prime mover is in its po-' sition of test. When said prime mover is drawn out the pallet d iscaused to act on the escapement-whe el, causing it to turn for the space of half a tooth, while, as the prime mover recedes under the action of the returning or retracting spring h, the pallet 0 acts on another tooth so as to turn said wheel the space of half a tooth, whereby for each down-and-up stroke of the prime mover or actuator the es capement-wheel is turned the complete distace or space of one tooth in the direction indicated by the arrows, Figs. 1, 2, and 5, and, as there are ten teeth in said wheel, for each actuation thereof the wheelis turned one-tenth of a revolution.

tice a tens-disk to register tens will be com- In the example represented by the drawings I have shown only the units-disk n of the trip register; but it will he understood that in pracbined with the units-disk, so that by the two disks I, will be enabled to register consecuti vel y on the trip-register ninety-nine fares be fore it reaches zero or the starting-point, as is 7 usual .in this class of machines.

The organization of-the tens-disk with the units-disk is unnecessary to be shown, as it will be well understood by those skilled in the art, the organization being made in any of the 8 well-known ways.

The units-disk n is shown as marked with the figures from '0 to'9, as usual.

To the escapement-wheel I (which is, as will be understood, the actuating ratchet-wheel of 8 the trip-register) is firmly secured or connected a toothed wheel, 0. both these wheels being made to turn or rotate together on a pin, arbor, or. axis, 71, fixed in the partition-plate G.

The toothed wheel 0 is provided with a tub- 9 ular hub, which forms the bearing for the units-' disk n, (seeFigs. 6 and 7,) and on the under side of this units diskai'e secured two pawls, is Z, which engage with the said toothed wheel 6, so that when both pawls are in gear the units- 9 disk cannot be turned in either direction independently of its actuating ratchet-wheell and ot' the toothed wheel 6, while movable with said wheels in the process of counting; but when the pawl k is thrownout of gear the r units'disk can be rotated in the direction indicated by'the arrow in Figs. 1, 2, and 5, independently of said actuating wheel and the wheel e and of the prime mover, to reset it, but not in the opposite direction, owing to the engagement of the pawl l with the said toothed I wheel 0. Y

Simultaneously with each actuation of the trip-register by the ratchet-wheel I the general register is also actuated by the prime I mover to countor tally consecutively'the same number as is recorded by the trip-register, as before stated, the actuating connection consisting, in the example shown, of a link, S, connected with the prime moverB at one end, I and with an eccentric wrist-pin, .51, secured to the face of a ratchet-wheel, T, at the other, said pin .9 working in a cam-groove, t, formed in a plate, T, situated in front of said ratchetwheel. Said ratchet-wheel T is mounted on I an arbor, which extends through the partition-' plate G, and carries on its inner end a pinionwheel, t, Fig. 4, meshing with a cog-wheel mounted on the arbor of the units-hand of the general register to turn said register, which 1 consists of a series of index-hands geared together, the first of which registers units, the next tens, the third hundreds, the fourth thousands, and soon, so that the said register, which cannot be reset or adjusted, will serve to control the singleitrip register for an unlimited time.

A pawl, it, engages the ratchet-Wheel T, to

v prevent it from being turned in the wrong direction, and compels a full movement of the prime mover in its reciprocation.

\Vhen the prime mover is drawn out and then. allowed to recede, the eccentric-pin s moves down through one side of the cam-groove t and up through the opposite side, so that the ratchet-wheel T is compelled to make a complete revolution in the right direction. It the pri me mover be drawn out partiallyonly and then released, the ratchet-wheelT is arrested by the pawl 11, and the primemover cannot recede untii drawn out to its full extent.

The alarm is also operated once-for each actuation of the trip and general registers by the prime mover by means ofa tappet or pawl arrangement. U, (shown in Fig. 4;) but inasmuch as both the construction of the alarm devices and of the general register, which I have shown, is substantially similar to that of my Patent No. 185,536, dated December 19,

1876, I deem it unnecessary to give detail description thereof iuthe present case.

The unitsdisk of the trip-register is retained on the tubular hub of the toothed wheel 0 by a flange, if, formed on the pinor axis a, Figs. 15 and 7, and from this flange rises a stud, i", for the reception of a key, K, which is inserted through a key-hole, m, Fig. 1, in the cover or t'ace-plate'of the casing to reset the tripregister.

From the pawl-7c, pivoted to the under side of the units-disk of the trip-register, a tappet' or projection, 0, extends through a curved slot, 0*, Fig. 2, insaid units-disk, said tappet and slot being in such relation to the key-hole 'm and to the zero (0) mark on the units-disk that the key'oannot be inserted in said hole when said tappet is situated between the key-hole and the zeromark, which is at the time the register stands at zero, or the point indicative of no registration, while said key cannot be withdrawn after having been inserted to reset by means of-the key K, (which is the resetting de-iee I employ'in the example shown,) the key is inserted through the key-hole m and turned in the direction indicated by the-arrows on Figs. 1,2, and 5. The face of the tappet 0 ot' the pawl k is rounded, and as the bit of the key strikes this face it slides under the tappet and forces or throws the pawl is out of engagement with the toothed wheel a. At the same time the bit of the key strikes a fixed pin, q, secured to or projecting from the unitsdisk near to and inside the sloto, Fig. 2, so

- that it cannot slip past. or from under the tappet 0, and as the turning of the key is continued the units-disk is compelled to rotate with it. When said key has been turned sutticiently to bring its bitbcneath thekey-hole, which is at the time the disk is at zero, the key can be withdrawn butit cannot be withdrawn before the units-disk has reached this zero position, as will be obvious.

A pawl or stop, 1', secured on the inside-pf the cover, prevents the key'being turned back- \vard in the direction opposite to thatindicated by the arrows, in order to get it out,

anism with a key the bit of which is not long enough to strike against the pawl r to prevent back movement, said pawl it remains in gear with the toothed wheel, and the units-disk cannot he turned by the key.

The prime mover B is provided with an extension, ZF, near the upper end of which is a .notch, a, and close beneath the cover ofthe casing A is situated a latch, L, which can be turned or vibrated by means of an arbor or shaft, 11 that projects through the cover and is provided with a buttop, I), to work it, so that a nose or pin, 0, which is secured on said latch, can be thrown in gear with the notch, in, as shown in Fig. 5, so as to lock the prime mover from its reciprocating movement. A spring, 61/, forces the latch back to the position shown in Fig. 2. V

On the inner end of the latch L is secured an arm, 6, which extends down, and, which, when the latch is in the position snown in Fig. 2, covers the key-hole m, and consequently forms a keyhole guard, said arm being retained in that position by a pin, o", in the cover of the casing, against which pin said arm is forced by the spring (1. By turning the latch t0v the position shown in Fig. 5, against the force of spring cl, the key-hole guard is caused to swing from under the key-hole, so that it leaves the same free for the entrance of the key to reset the register, while the prime mover will be locked from movement. If the latch. L is thrown in gear with the prime mover,-it is retained in that position by acatch, g, which swings on a'pivot, h, on-the inside of the casing-cover, and is exposed to the action of a spring, t, which has a tendency to throw said catch down to the position shown in Fig. 5. With this catch is combined an anchor,j, which engages with an escapementwheel, k, so that each time the catch drops down the escapemenhwheel is turned halt a tooth, and when the catch rises the escapement-wheelis turned again halt' a tooth. The

face of this 'escapement-wheel forms a dial, which 1 term the trip-indicator or zero-' register, and which contains a series of figures or signs, one of which is visible through an apertare, 1, Fig.1, in the cover of the casing whenthe movements of the latch L are recorded,

and since the latch is only moved when the register is to be turned to zero, which is usually done at the end of each half-trip, the trip-indicator or zero-register shows when and how many times the single-trip register has been set to zero by the resetting mechanism independently of the prime mover and general register, and on which of its trips the car or other vehicle is running.

On the catch g is secured a toe, m, and when the catch has been depressed to the position shown in Fig. 5 the outer end of this toe assumes such a position that atooth or pin, a, projecting from the units-disk it, strikes the same at the moment the single-trip register has been turned to zero.

When the catch 9 is in its locking position, as shown in Fi g. 5, it engages with a V-shaped notch,0', in the edge of the locking-latch L,

so that it requires a certain power to throw itont of gear. As soon as the tooth it strikes the toe m a slight pressure on the key in the direction of the arrows, Figs, 1, 2, and 5, releases the catch g, leaving the key in position to be withdrawn. At the same time the tappet 0, being-forced outward by the bit of the key, strikes'the fixed pin 0 thus preventing the units-disk from being turned beyond zero by means of the resetting device or key. As soon as the key is withdrawn the spring d forces the locking-latchL back to the position shown in Fig. 2, (which is its normal position,) the trip'indicator 7c advances the second half tooth, and the key-hole guard covers the keyhole, and the tappet 0 recedes, so that when the trip registeris actuated by the prime mover said tappet and the fixed pin 0 form no 01)- struction toits motion. Whilethe prime mover is locked by the latch L and the single-trip register is free to be set to zero, neither the general register nor the alarm mechanism can be moved, and the indication of the trip-indicator or zero-register is displaced, and it does not show any new indication until the prime mover is released, which can only be accomplished in the organization 1 have shownby resetting the trip-register to zero by the resetting mechanism.

The locking-latch, the key-holeguard, and the trip-indicator or zero-register can be applied to fare-registers of constructions differing somewhat from that shown and described. Instead, also, of the units-disk a trip-hand arran gement may be substituted, while the construction of the general register which I have shown may be changed without departure from my invention,

What I claim as new, and desire to secure by Letters Patent, is-- 1. The combination,substantially as hereinbefore set forth, of a registering mechanism adapted to be turned to zero by a key independently of the prime mover which operates it in the process of counting, an alarm, a prime mover common to said mechanism and alarm, and'a key-hole guard connected with a. latch which servestolock the prime mover while the register is being reset, and can only be released by turning the register to zero or the starting-point. i

2. The combination of a single-trip register adapted to beset to zero by a key independently ot' the prime mover which operates it in the process of counting, a general register, an"

alarm, a prime mover common to said registers and alarm, and akey-hole guard connected with a latch which serves to lock the prime mover while the single-trip register is being reset, and can only be released by turning the single-trip register to the zero or starting point.

3. The combination, substantially as hereinbeforeset forth, of a registering mechanism adapted to be set forward to zero independentlyot" its primemover, a prime mover adapted to impart to the registering mechanism a stepby-step movement, and a setting device, substantially as described, adapted to turn the.

register in one direction only to zero, and no farther, while the register, when actuated. by its prime mover, can move freely beyond zero.

4. The combination, substantially as herein before set forth, of a, singletrip register, a general register, a, prime mover common to both, a device for setting the single-trip register forward to zero independently of the general register, and mechanism which prevents the sin gle-trip register from moving past zero when operated by the setting device, but allows the same to move past said point when actuated by; the prime mover.

5. The combination, substantially as hereinbefore sct'forth, of a sin gle-trip register, a gen'-.

eral register, an alarm, a prime mover common to all three, a setting device for moving the single-trip register forward tojzero independently ot the general register and of the 'alarm, and mechanism which prevents the single-trip register from moving past zero when operated the setting device, but allows the same to move past said point when actuated simultaneously with the general register.

6. The-combination, substantially as hereinbefore described, of a registering mechanism,

a prime mover for imparting a step-bystep movement to said registering mechanism, a device for turning the registering mechanism to zero independently of its prime mover, atrip-indicator or zero-register for indicating when the registering mechanism has been set to zero by the said device,and mechanism to lock the prime mover and displace the indication of the trip-indicator. or zero-register.

7. The combination, substantially as hereinbefore described, of a registering mechanism,

an alarm, a prime mover common to both," a device for turning the registering mechanism to zero independent of its prime mover, a tripindicator or zero-register for indicating when the registering mechanism has been set to zero by the said device, and'mechanism to lock the prime mover and displace the indication of the trip-indicator or zero-register.

8. The combination, substantially as hereinbefore described, of a single-trip register, a

general register, an alarm, a prime mover the indication of'thetripindicator or common to all three, a device for turning the single-trip=register to zero independent of its prime mover, a trip-indicator or zero-register for indicating when the single-trip register has beenset to zero by said device, and mechanism to-lock the prime moverand displace zeroregi'ster. i r i 9. The combination, substantially as hereinbefore set ,forth,of a registering mechanism, 'a prime mover. for imparting a step-by-step movement tothe registering mechanism, a device for setting the registering mechanism to zero independent of its prime mover, a tripindioator orzero-register, and-connectin g mechanism, substantially as described, so constructed that the registering mechanism cannot be set to zero independently of its prime mover withoutoperatin g the trip-indicator or zero-register, and the trip-indicator or zeroregister can only'be changed to show anotherin'dication'or sign by operating the device for set-tin ggiillGIBglSfl-Jlill g mechanism to zeroinu'edescribed. I r

pendent of :thefprime mover, substantially as] 'adapted to be set to zero at will independently of its prime mover, a prime mover for actuating the registering mechanism, a trip-indicator, a mechanism which prevents the registering mechanism-from being moved independently of its prime mover without firstdisplacing the indication or sign of the trip-indicator or zero-register, and which does not allow .the trip-indicator or zero-register to show another indication or sign before the registering mechanism hasbeen set to zero.

'11. The combination, in afare-register, of asing1e-trip register for recording the fares collected on each trip or half-trip,'a general registerfor making a permanent record ofthe fares collected during a period of time,an alarm to announce the recording of each fare, a prime mover actuating said t-ri p and general registers and the alarm by independent connections, a trip-indicator or zero-register incapable of being changed to anotherindication or sign with out setting the sin gletrip register to zero by its resetting mechanism,.an.d a surrounding casing provided with slots or openings for inspecting the various indications or. signs, all

constructed and adapted to operate substantially as shown and described. I 12. The combination, substantially as heretripindicator or zero-register for indicating when the register has been set to zero, a keyhole guard connected to a latch which serves to lock the prime mover, anda catch which serves to retain the latch initslocking posi;

tion and to displace the indication'of the trip- I indicator or Zeroregister.

13. The combination, substantially as hereiii-before set forth, of a registeringmechanism,

an alarm, prime mover common to both, a

key for turning the register to zero-independently ofits prime mover, -a trip-indicator or zero-register for indicating when the register has been turned to'zero, a hey-hole guard con; nected tea latch which serves to lock the prime mover, and a catch which serves to retain thelatch in its locking position and to displace the indication ofthe trip-indicator or zeroregister. j v v i p 14. The combination, substantially as hereinbefore set forth, of a single-trip register, a

. general register, an alarm, a prime mover common to all three, a key for turning the'single' trip register to zero independently of its prime mover, atrip-indicator or zero-register for in dicating when the register has'beenturned to zero, a keyhole guard connectedto a latch which servesto lock the prime mover, and a catch which retains thelatch in its locking position and serves to displace theindication of.

the trip-indicator or zero-register,-

15. The combination, substantially as hereiubefcre set ibrth of a registering mechanism, a prime mover for imparting a step-by-step movement to said registering mechanism, a device for turning the register to zero independently of its prime mover, a trip-indicator or zero-register for-indicatin g when the regis- I ter has been turned to zero, a-latch which IIO serves to lock theprime mover, a catch which serves to retain the latch in its locking position, and a'pin or equivalent device which is connected to the registering mechanism and servesto actuate the catch so as to release-the prime mover and to change the indication of the trip-indicator or Zero-register at the time the registering mechanism has been turned to zero.

, 16. The combination, substantially as herei'nbefore set forth, ofa registering mechanism, an alarm, a prime mover common to both, a device for turning the register to zero independently of its prime mover, a trip-indicator 'or Zero-register for indicating when the regis ter has been turned to zero, a latch which serves to lock the prime mover, a catch which servesto retain the latch 111 its locking post tion, and a piu'or equivalent device which is connected to the registering mechanism and serves to actuate the catch so as to release the prime mover and to change the indication of the tri 'i-indicator or zero-register at the time common to all three, a device for turning the single-trip register to zero independent of the prime mover, a trip-indicator or zero-register for indicating when the sin gle-trip register has been turned to zero, a latch which serves to lock the prime mover, a catch which retains the latch in its locking position, and a pinor equivalent device which is connected to the registering mechanism and serves to actuate the catch so as to release the prime moverand to change the indication of the trip-indicator or zero-register at the time the registering mechanism has been turned to zero.

18. The combination, substantially as here inbei'ore set forth, of a registering mechanism, a prime mover for imparting a step-.by-step movementto said registering mechanism, a device fortnrning the register to zero independent of its prime mover, a zero-stop, a tripindicator or zero-register for indicating when the register has been turned to zero independent of its prime mover, a latch which serves to lock the prime'mover, a catch which retains the latch in its locking position, and a pin or equivalent device which is connected to the registering mechanism and serves to actuate the catch so as to release the prime mover and to change the indicatiol'i of the trip-indicator or zero-register at the time the register-' ing mechanism is held by the zero-stop.

19. The combination, substantially as here-- inbefore set forth, of a registering mechanism, an alarm, a' prime mover common to both, a device for turning the register to zero independent of its prime mover, a zero-stop, a tripindicator or zero-register tbrindicating'when the register has been turned to zero independent of its prime mover, a latch which -serves to lock the prime mover, a catch which retains the latch in its locking position, and a pinor equivalent device which is connectedto the registering mechanism and serves to actuate the catch so to release the prime mover and to change the indication of the trip-indicator or zero-register at the time the'registering mechanism is held by the zero-stop.

20. The combination, substantially as hereiubefore set forth, of a single-trip register, a

general register, an alarm, a prime mover com- .mon to all three, a device for turning the single-trip register to rro independent of its prime mover, a zero-stop, a trip-indicatopor zero-register for indicating when the single trip register has been turned tozero independent of its prime mover, a latch which serves to lock the prime mover, a catch which retains the latch in its locking position, and a pin or equivalent device which is connected to the registering mechanism and serves-to actuate the catch so as to release the prime-mover and to change the indication of the trip-indicator or zero-register at the time the registering mechanism is held by the zero-stop.

21. The combination, substantially ashere inbet'orc set forth, of a registering mechanism,

a prime mover for imparting a step-by-step' movement to said registering mechanism, a key for turningthe register to zero independent of its prime mover, a zero-stop which, when acted on by the key, retains the register at zero, but allows said register to turn freely past zero when the key is withdrawn, a tripindicator or zero-register for indicating when the register has been turned to zeroby the key, a latch which serves-to lock the prime; mover, a catch forretaining the latch in its locking position, and a pin or equivalent device which is connected to theregisteringmechanism and serves to actuate the catch so as to release the prime mover and to changetheindieation of the trip-indicator or zero-register at the time the registering mechanism is held by the zero-stop.

22. The combination of a registering mechanism, an alarm, aprime mover common to both, a key for turning the register tozero independent of its prime mover, a'zero-stop which, when acted on by'the key, retains the register at zero, but allows said register to turn freely past zero when the key is withdrawn, a trip-indicator or zero-register forindicatin g when the register has been turned t zero by the key, a latch which serves to lock the prime mover, a catch for retaining the latch in its locking position, and a pin or equivalent device which is connected to the or zero-register at the time theregistering mechanism is held by the zero-stop.

23. The combination, in a fare-register, ot' av single-trip register, a general register,-an'

alarm, a prime mover common to all thiee, a.-

key for turning the single-trip register to zero independent of its prime mover, a zero-stop which, when acted on by the key,'retains the single-tripregister at zero, but allows said, register to turn freely when the key is withdrawn, a trip-indicator or zero-register for indicating when the register has been turned to zero by the key, a latch whichserves to lock the prime mover, a catch for retaining the latch in its locking position, and a pin or equivalent device which, iscounected to the registering mechanism and-serves to actuate the catch so as to release the prime mover andto change the indication of the trip-indicator or zero'register at the time the single trip register is held by the zero-stop, substantially as set forth.

In testimony whereof I hereunto subscribe my name.

\ WILLIAM H. HORNUM.

XVitnesses WM. CARY SANGER, THos-T. SHERMAN.

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