US651845A - Recording car-scale. - Google Patents

Description

(No Model.)-

MTNESSES, i

G. GUETZ.

RECORDING CAR SCALE.

(Application tiled Mar. 12, 1900.)

Patented lune l9, I900.

l4 Sheets-Sheet l.

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I/vvE/v TOR. I GEORGE Gas 12 firronu tr:

N0. 65!,845. 1 Patented lune l9, I900. G. GOETZ.

RECORDING CAB SCALE.

(Application filed Mar. 12, 1900.1 (No Model.- 14 Sheets$heet 2.

No. 651,845. Patented lune l9, I900.-

G. GOETZ.

RECORDING CAR SCALE.

(Application filed Mar. 12, 1900.] (No Model.) l4 Sheets-Sheet 3.

E G GEORG: OETZ fimda MW WT/VESS ES.

ms/ITTOR NEYS'.

N0. 65l,845. Patented lune l9, I900.

G. GUETZ.

RECORDING CAB SCALE.

(Application filed Mar. 12 1900.)

(No Model.) I4 SheetsS heet 4.

\t I z x X 6 N n lT/vgssasz INVENTOR:

qua. M I GEORGE GoE-rz m BY M ,SPWW

ms a? T701? IV EY8 Patented June l9, I900. G. GOETZ.

RECORDING GAR SCALE.

(Application filed Mar. 12, 1900.) (No Model.) l4 Sheets-Sheet 5.

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MTNESSES:

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'No. 65|,845. Patented Jun8 l9, I900.

G. GUETZ.

RECORDING CAR SCALE.

(Application filed. Mar. 12, 1900.) (No Model.) l4 SheetsSheet 6.

WITNESSES. I I 7 /vy/v TOR,

GEORGE G04: TZV I BYM, MWW

No. 65l,845.

Patontad lune l9, I900.- G. GOETZ.

RECORDING CAR SCALE.

(Application filed Mar. 12, 1900,) (No Model.)

H Sheets-Sheet 7.

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m E 1 Tam YR" A G g m M No. 65l,845. Patented June l9, I900. G. GUETZ.

RECORDING CAR SCALE.

(Application filed Mar. 12, 1900.) (No Model.)

l4 Sheets-Sheet 9.

IN VENTURE ugaav- GEORGE GOETZ MMW No. 65l,845. Patented lune l9, I900.

G. GUETZ.

RECORDING GAB SCALE.

(Application filed. Mar. 12, 1900.]

l4 Sheets$heet I0.

(No Modei.)

Q g O) r Cilv 8 (DD a H e g x M 5% MEMBER!- MTNESSES. I INIVEN Ton:

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1: .4 rrannsvs No. 65l,845. Patented lune I9, 1900. a. 60512.

RECORDING CAR SCALE.

(Application filed Mar. 12, 1900.)

(No Model.) l4 Sheets-$heet ll.

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No. 65l,845. I Patented lune 19, I900.

G. GUETZ.

RECORDING CAR SCALE.

(Application filed Mar. 12, 1900.\ (No Model.) l4 Sheets-Sheet l2.

' g A A No. 65l,845. Patented lune l9, I900. G. GOETZ.

RECORDING GAR SCALE.

(Application filed Mar. 12, 1900.) (No Model.) l4 Sheets8heet l3.

lNl/E/v T R. GEORGE GoE-Tz Wrr/vEs ass:

N0. 65l,845. Patented lune l9, I900.

G. GOETZ.

RECORDING CAR SCALE.

(A lication filed Mar. 12, 1900. (No Model.) l4 Sheets-Sheet l4.

EGXXV Efc XX E caxxlx my. EFG XXX V/TNESSES! ,[N VEN TO I?! H4 GEORGE @0572 I Hns' fl-r-rorervsrs UNITED STATES I PATENT OFFICE.

GEORGE GOETZ, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE S'lREE'IER-AMET WEIGHING AND RECORDING COMPANY, OF SAME PLAOE.

RECORDING CAR-SCALE.

SPECIFICATION forming part of Letters Patent No. 651,845, dated June 19, 1900. Application filed March 12, 1900. Serial No. 8,367. (No model.)

To all whom it ma concern.-

Be it known that I, GEORGE GOETZ, a citizen of the United States, residingin Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Scales for \Veighing Railway-Carsand Recording the Weights Thereof, of which the following is a specification.

My invention relates to scales for automatically weighing railway-cars and recording or printing the weights thereof as a train of cars passes over the scale-platform.

The Object of my invention is to provide an automatic scale of a simple, efiicient, and durable construction by means of which the several cars coupled in a train may be automat-ically weighed and the weight of each car automatically recorded without stopping the train, the operation of weighing and recording the weight of each car being don'e'as the train is drawn over the scale-platform at a reasonable speed.

My inv ntion consists in the novel construction 0 parts anddevices and in the novel combinations of parts and devices herein shown and described, and specified in the 7 claims.

In the accompanying drawings, forming a part of this specification, and in whichsirnilar figures of reference indicate like parts throughout said drawings, Figure I is a side elevationof an apparatus embodying my invention. Fig. II is an enlarged detail view, partly in vertical section, of the extension of the scale-beam and dash-pot connected therewith. Figs. III and IV are a detail'plan and an elevation, respectively, of the dash-pot plunger. Fig. V is a plan View of the weightprinting mechanism. Fig. V1 is a detail showing aportion of the type-wheel and the pointer for indicating the weight. Fig. VII is a portion of the paper strip or tape, showing the manner in which the weight is recorded. Fig. VIII is a section of the pointer, taken on line A A of Fig. VI. Fig. IX is a vertical section on line B B of Fig. V, showing details of the printing mechanism. Fig. X is a section on line B B of Fig. V, showing the parts below that shown in Fig. IX. Fig. XI is a section on line D D of Fig. V, showing details of the printing mechanism. Fig.

XII is a section 'on line E E of Fig. X. Fig. XIII is a sectional elevation of the springmotor for winding up the tape or paper strip. Fig. XIV is a detail elevation of the adjustable spring connected to the type-wheel-opcrating rack. Fig. XV is a detail perspective view of the block for increasing or diminishing the tension on the spring. Fig. XVI is a perspective view of the bolt for attaching the spring-adjusting block. Figs. XVII, XVIII, and XIX are respectively detail views, in side elevation, plan, and front view, of the adjustable antifriction guide or bearingfor the type-wheel-operat-ing rack. Fig. I

XXVIII is a detail section on line J J of Fig.

XXII. Fig. XXIXis a detail section on line K K of Fig. XXVIII. Fig. XXX is a view 8C similar toFig. XXIX, showing the parts in different positions; and Fig. XXXI is a detail section on line L L of Fig. II. Fig. XXXII' is a. detail view of one of the track-levers.

In said drawings, 2 isthe platform of a carscale, having railway track rails 3 thereon, which connect with the rails 40f the railwaytrack. The car-scale is or may be of any suitable constrnction commonly in use and havin g the customary scale-levers below the plat- 0 form.

5 is the link or connection between the scale-platform or its levers and the scalebeam 6, which is furnished with the customary weights and connterbalances 7.

Inorder to adapt my apparatus to be readily and conveniently applied to any ordinary railway-scale, I provide a scale-beam eiztension or arm 8, having a curved socket 9, adapted to be clamped by bolts 10 to the customary I00 curved head 11 of the scale-beam, and it is to this arm or extension that the other parts of 7 pounds.

2 ceases the. apparatus are connected instead of directly to the scale-beam.

The counterpoises or weights 7 are used simply for balancing the scale and not for the purpose of indicating the weight by sliding to difierent positions onthe scale-beam, as in ordinary hand-weighing. In my scale the weight of the car is counterpoised by'a spring-balance 12, connected at one-end to a bracket 13,'attached to the frame lat of the scale,- and connected at the other end to the scale-beam extension or arm 8 through the clevis 15, link 16, threaded coupling 17, conheating-rod 18, rack 19, screw-threaded connecting-rod 20, screw-threaded coupling 21, and link 22. The spring-balance 12 is adjustably connected to the support 13 by a rotatable block 23, having a flange 24, adapted to fit between the coils of the spring, and an eye 25, through which the spring-coils may pass,fand which block is adapted to turn upon a screw-threaded bolt 26, by which said adjusting-block is secured to the support 13. A set-screw 27 by clamping against the coil of the, spring which passes through the eye 25 fixes the adjusting-block securely in any position to which it may be turned. By turning the adjusting-block the active or operative length of the coil-spring 12 may be varied and the tension of the spring thus accurately adjusted as may be required to cause the movement of the scale-beam and rack 19, connected thereto, to correspondaccurately to the graduated weights or figures upon the printing-wheel 30, which is connected with and actuated by the scalebeam through said rack .19., The printing or type wheel 30 is furnished on its periphery with a series of type or figures 31, indicating successive weights, the intervals between successive figures being preferably one hundred pounds, as cars are ordinarily not attempted to be balanced or weighed closer than to hundreds of In Fig. Vi a short segment of the periphery of the type-wheel is shown with successive figures or type thereon.

The-shaft 32 of the type-wheel 30 is furnished with a gear 33, which meshes with the rack 19, so that the movement of the scalebeam and rack 19, as governed by the'spring balancel2, accordin g to the particular weight of the car on the scale-platform, will turn the type-wheel the extent necessary to bring the figure on the type-wheel corresponding to the weight of the car adjacent to the pointer or indicator type orblade 34, which is mounted on the stationary frame adjacent to the typewheel. The pointer 34 is adjustably mounted on the stationary frame by means of adjust ing- scr'ews 35 and 36, so that the edge or surface of the pointer may be brought into accurate and proper adjustment with the surface of the type on the type-wheel, and thus cause an impression of both to be simultaneously made on the paper strip or tape37 by the impression-hammer. The shaft 32 of the typeheel 30 is journaled on atntifrictiomwheels 38, the shafts 39 of which are journaled on antifriction-wheels 40 to reduce the friction of the type-wheel shaft to a minimum. Adjusting-screws 41, the lower ends of which, howev r, should not quite touch the shaft 32, keep said shaft in position above and between the friction-wheels 38, upon which it rests. The type-wheel shaft 32 is furnished with a cord 42, wound thereon and supporting a weight 43, which serves to counterbalance the friction of the rack 19, gear 33, and typewheel shaft, and thus eliminate any error that might result therefrom.

To causethe scale-beam to move steadily and also to come to a true balance for each car very quickly as the train of cars is drawn over the scale-platform without stopping, I combine with the scale-beam extension or arm 8 a dash-pot cylinder 44, having a movable piston 45, connected by a stem 46 to said arm 8 through the link 47, and provide said piston with four large valves 48 48 and 49 49, two opening upward and two opening downward, each of which valves is furnished with a flat spring 50 for holdingthe valve more or less closed, according "to the pressure of the fluid in the dash-pot against the piston. As

.these valves are large and four in number,

they permit of a comparatively quick and free movement of the piston until the movement of the scale-beam begins to approximate the weight of the car, while at the same time the movement of the sc'ale-beamjs steadied and constantly diminished in speed until the true balance of the car is reached.

The impression-hammer 51 is carried by a lever 54, pivoted at 52 to the frame, and it is held in its elevated position by'a'trigger or pawl 53, which engages the notched rear end .of the hammer-lever 54,'and spring 55 causes 'it to descend and strike the necessary blow against the type-wheel 30 and pointer 34 to cause an impression thereof to be made upon the paper strip or tape 37 when the typewheel is turned to indicate the true weight of the car on the scale-platform.

To hold the rack 19 in proper mesh with the gear 33 on the type-wheel shaft in such 'way as to produce as little friction as possible between the two, I back or support the vertieerily-moving rack 19 by means of an antifriction roller 56, which is furnished with flanges 57 to fit on either side of the rack and which is journaled on an adjustable arm 157, the position of which to or from the rack 19 maybe adjusted on its supporting-bracket 5S by an adjusting-screw 59.

The adjustable arm'157 is furnished with an adjustable extension 60 to regulate the position in respect to the type-wheel shaft 32, this being done by the adjusting-screw 61. The adjustable arm 157 is provided with a curved hood 158, extending over the roller 56 to protect the same from dust.

The paper strip or tape 37, upon which the weights of the cars of the train are successively printed or recorded as the train passes over the scale-platform 2, is automatically fed from a reel or spool 62, about which it is wound, and passes over or around the tape-guide rollers 63 64 .65 66 to the spool or reel 67, upon which the printed record is wound. The tak'eup spool 67 is rotated and the tape 37 thus kept under tension by a spring-motor 69,

which tends to constantly turn the take-up spool and does so turn it when the notched disk ou the shaft 71 of the roller 66 is re-. leased or permitted to turn. The'notched disk 70 is normally held from rotation by a lever 72, pivoted to the frame at 73 and held normally in engagement with the-cam by a spring 74. The lever 72 is at intervals disengaged from the notched disk 70, so as to permit the tape 37 to automatically feed forward the length necessary for receiving the next impression thereon by the impression-. hammer lever 54.

The-spring-motor 69 may be of any usual or wel1-known construction. As illustrated in the drawings, it comprises a case or frame 169, a spring 170, shaft 171, gears 172 173, shaft 174, gears 175 176, and shaft 177, said shaft 177 carrying a governor consisting of radial arms 178, attached to said shaft and furnished with sliding weights 179, which engage frictionally a stationary ring 180.

The tape 37 in passing from the guide-roller 64 to the guide-roller 65-passes over'the type wheel 30 and indicator-type 34'and beneath the rotary elastic disk 75, preferably of rub-' ber stiifened with cardboard 76 and bearing on its under face a carbon-surface or carbonpaper 77, so as to cause the type of the typewheel 30 and indicator 34 to make a distinct impression on the paper strip or tape 34. The

an intermittent rotary movement to bring a newsurface over the type after each impres- SlOI].

To cause the cars of the train as they pass onto and over the scale-platform to automatically raise the impression-hammer into position for operation and to automatically release said impression-hauime'r when each. car is fully onto the scale-platform and before passing 011 and while the type-wheel is brought to a true balance, so as to indicate the true weight of the car, and before the front wheels of the next succeeding car of the train pass onto the scale-platform, I provide" the scaleplatform with two long bent or bail-shaped track-levers 81 81, located closely adjacent and parallel to the rails 3 and in the path of the flange of the car-Wheel, so that these bent or bail levers will be depressed or actuated by the flanges of the wheels of the car as it passes along. The track-levers 81, oneat each end of the scale-platform, preferably extend for about one half their length on the scale-platform and for the other half of their length along the track-rail 4, beyond the 1 scale-platform. Motion is communicated from the bent or bail levers 81 to raise theimpression-hammer by means of a connecting-link 82, bent-lever 83, connecting-link 84, bent lever 85, and connecting-link 86, furnished with a compensating spring 87. Said link 86 connects with a sliding bar 88, carrying a pawl 89, pivoted to said bar 88 by a pivot-screw 90, which pawl is held in operative position by a spring 91 to engage a ratchet-wheel 92 on the shaft'93, so that said-shaft is turned the distance of one ratchet-tooth for eachcar-wheel passing over the bent or bail track-lever 81.

The shaft 93 thus actuated is provided with ings is designed for use in weighing eightwheeled cars. The cam 94 at the third movement of the ratchet 92 operates to raise the impression-hammer through the'connecting bent lever 95, link 96,-lever 97, link 98, lever 99, link 100,]aud bent leyjer 101, which has a pin 102'passing underneath the impressiom ham'merlever54. Whentheimpression-hammer lever is thus raised intothe position shown a in Fig-XI by the third movement of the ratchet 92, it is automatically held in this position by the pawl 53,and-.'th fourth step or movement of the ratchet 92 moves the cam 94 out of contact with the bent lever 95 and allows the bent levers 95 and '101-and their connections to re-- turn to their normal position in obedience to spring 103, so that, the impression-hammer may be free to descend when released by the pawl 53. Stops or buffers 195, secured to the box or case 128, limit the movement of the le- 3 vers 95 in one direction.

pivoted to the bent lever 113, which is piv-- oted at 114 to the frame and connected at 115 with the slide 88,;sothat when the slide 88 operates the ratchet 92 it will, through the bent lever 113, throw the pawl 11.2 into engagement with the reverse ratchet 111. To prevent any backward movement of the ratchet 93, a pawl 116 is provided and held in engagement with said ratchet 92 by a spring 117.

The track-levers 81 are duplicated or two in number and are located at each end of the scale-platform, as before stated, and the ratchetmechauism above describedforraising and releasing the impression-hammer is likewise duplicated, one set of this mechanism, being employed for each of the track-levers 81. As the two duplicate bent levers 95 95 of each of said duplicate ratchet mechanisms areconnected together by the link 96, it will be seen that the impression-hammer lever 54 cannot descend until both earns 94 are moved into the position for disengaging the levers 95-95 and consequently permitting the bent lever 101 to withdraw out of the way of said lever 54 and permit its descent. In other words,the impression-ham mer cannot descend to print the weight of the car until both ratchets 92 have each' been operated four times-that is to say, until the four Wheels of one car passing 0E the scale-platform have each and all operated the track-lever 81 at that end and until the four wheels of the entering car have each and all operated the bent track-lever 81 at the other end of the scaleplatform.

In practice freight-cars are frequently of different lengths or of 'diiferent distances between the truck-wheels, and to adapt the apparatus to operate automatically upon either long or short cars coupled promiscuously in a train, as they usually are, it is necessary to duplicate the long bent track-levers 81 and the ratchet mechanism and to have the bent levers 95 95 of the two ratchet mechanisms. connected together, so that neither can operate to permit the withdrawal of the bent lever 101 until both earns 94: 94 are turned to the same position by four wheels of one car passing OE and four wheels of another car passing onto the scale-platform The two bent track-levers 81 81 are located far enough apart so that all four wheels of a long car may stand on the scale-platform between them without touching either, and they are at the same time located near enough together so that when ashort car is on the scaleplatform the front wheel of the next car cannot touch either of said levers, By this means the apparatus is adapted to weigh long or short cars coupled promiscuously in a train, and the printing or Weight-recording mechanism is so controlled that it will only be operated when the wheels of one car are alone upon the scale-platform.

Locomotives and their tenders usually have a different number of wheels than the cars,

and the same are differently spaced, and to prevent the duplicate ratchet mechanisms from being thrown out of the proper position for counting and being actuated by the four wheels of the'car by the passage of annuequal number of wheels on the engine or tender over the scale-platform I provide the op{ erating-pawls 89.of each of the ratchets 92 with a device for temporarily holding said pawls out of gearproperative position in respect to said ratchets while the wheels of a locomotive or tender are passing over the scale-platform. This pawl nngearing or disengaging device preferahly consists of a pin 120, having a pointed or inclined end 121, which passes through a hole in the slide 88 and enters a funnel-shaped hole 122 in the pawl 89, and thus forces the pawl out of operative position with the ratchet. The instant all the wheels of the engine and tender pass the lever 81, connected with one ratchet mechanism, and before-the first or front wheel of the car engages said lever the pawl-disengaging pin 120 must be removed, and the same is true in relation to the pawl-disengage ing pin of the other ratchet mechanism. The pawlcarrying slide 88 after being pulled down by the trackdever 81 is automatically retracted by a spring 123. The track-levers 81 are each automatically returned to a normal position after being operated upon by one wheel, so as to be ready to be again operated upon by the next wheel by means of a spring 124, connected to the bent lever by links 125. The spring 87 compensates for any excess of movement of the track-lever 81 over that of the sliding bar 88.

The link 16 attords a swivel connection be tween the clevis 15 and the coupling 17 to prevent any binding or twisting action on the rack 19 and consequent undue friction. The clevis 15'is connected to the swivel-link 16 by a movable pin 126, held in place by a retaining-spring 127,'so that the scale-beam may be disconnected from the type-wheel and its operating-rack in case it is desired to weigh a car by hand for the purpose of testing the accuracy of the scale and weight-recording mechanism whenever desired or for other purposes The part or clevis 15 has a slot 150, provided with a beveled end 151, against which the beveled end 152 of the link 16 fits, and the clevis 15 is also provided with a fixed pin 153, fittingin an inclined slot 154 in the link 16, so that when the pin 126 is inserted a rigid connection will be formed between the clevis 15 and link 16 and also forming a connection by which the parts are readily separated by the removal of one pm.

The ratchet-shaft 93 is provided on the outside of the inclosing case 128 of the ratchet mechanism with a pointer or finger 129,whicl1 indicates on a dial 130 the position of the wheels of the car in respect to such platform and the position of the ratchet-wheel and cam. By comparing the two pointers 129 of the two ratchet mechanisms a glance will show if the two ratchet mechanisms are in proper registry with each other. The ratchetshaft 93 is also provided with a handle 131 for turning it by hand to adjust the ratchet mechanism. This is a convenience in setting the two ratchet mechanisms in proper registry with each other.

The spool or reel 62 is provided with a tension-roller l32, journaled on a sliding weight 133, adapted to move up and down on the guide-pins 13 1.

135 indicates the four wheels of a car on the scale-platform.

I claim 1. The combination in an automatic carscale-weighing and weight'recording apparatus, of a scale-platform with track-levers at each end thereof adapted to be operated by the wheels of a car, with a scale-beam furn'ished with an extension or arm, a dash-pot cylinder furnished with a piston connected with said arm and having two upwardly-opening and two downwardly-opening valves, a rotary type-wheel, a spring having a tensionadjusting block, a rack connecting said scalebeam with the spring, a gear on the typewheel shaft meshing with said rack, a pointertype adjacent to said type-wheel, an impression-hammergan impression-hammer lever, a pawl or trigger for holding the impression hammer leverin itselevate'd position, a spring for actuating the impression-hammer, a paper-strip reel, take-up reel and guide-rollers, a spring-motor for actuating the take-up reel, a notched disk and actuating-lever for controlling the forward feed of the paper strip or tape, an elastic printing-disk interposed between the type wheel and pointer-type and the impression-hammer, two pawl-carrying slides, one connected with and actuated by each of said track-levers, two ratchets actuated one by each of said pawl-carrying slides and furnished each with a cam and connecting-lever adapted to raise the impressionhammer lever at the third impulse or movement of either of said ratchets, and to disengage itself from said lever on the fourthimpulse thereof, said levers being connected together so that the mechanism for raising the impression-hammer lever cannot be withdrawn to permit the descent of said impres-. sion-hammer lever until both of said ratchets have been given its fourth impulse or move ment, the shaft of each of said ratchets being furnished with a further cam and connecting levers and links for moving said trig-.. ger or pawl to release the impression-hammer lever, substantially as specified.

2. In an automatic weight-recording scale, the combination with the scale-beam of a type-wheel connected thereto and operated thereby, and a spring connected with said scale-beam'and .typewheel and furnished witlia tension-ad j ustin g block having a flange adapted to fit between the coils of said spring, and an eye through which the spring extends as the adjusting-block is turned, substantially as specified.

3. In an automatic weight-recording scale, the combination with the scale-beam of a typewheel connected thereto and operated thereby, and a spring connected with said scale beam and type-wheel and furnished with a tension adj usting block having a flange adapted to fit between the coils of said 1 spring, an eye through which the spring extends as the adjusting-block is turned and a set-screw for fixing the adjusting-block in position, sub-' stantially as specified.

4. The combination with the scale-beam and type-wheel connected therewith, of a dash-pot cylinder 44, having'piston 45 furnished with two large upwardly-opening and two large downwardly-opening valves46, each having a fiat spring 47, substantially as specified. v

5. In an automatic weight-recording carscale, the combination with the scale-platform, scale-beam, type-wheel, spring, impression-hammer leverv 54 and a-movable trigger or pawl 53 for holding said 'lever 54 in its elevated position, of a pair of track-levers 81, 81, one at each end of the scale-platform, a pawl, ratchet and pawl-carrying slide for and connected with each of saidtrack-levers 81, the shaft of each of said ratchets having a cam and an operating-lever 95 adapted to raise said impression-hammer lever, said operating -levers being connected together, so that theimpression-hammer-lever-raisingmechanism cannot be withdrawn out of the way of the descent thereof until both of said ratchets receive the same number of impulses through its respective track-lever 81, substantially as specified.

6. In an automatic weight-recording carscale, the combination with the scale-platform, scale-beam, type-wheel, spring, impression-hammer lever 54 and a movable trigger or pawl 53 for holding said lever 54 in its elevated position, of a pair of track-levers 81,-81, one at each end of the scale-platform, a pawl, ratchet andpawlcarrying slide-for and connectedwith each of said "track-levers 81, 81, the shaft of each of said ratchets having a cam and an operating-lever 95 adapted to raise said impression-hammer lever, said operating-levers being connected together, so that the im pression-hammer-lever-raisin g mechanism cannot be withdrawn out of the way of the descent thereof until both of said ratchets receive the same number of impulses'throngh its respective track-lever 81, and connecting links and levers from said levers 95 for operating said impression-hammer lever 54, substantially as specified.

7. In an automatic weight-recording carscale, the combination with the scale-platform, scalerbeam, type-wheel, spring, impression-hammer lever 54 and a movable trigger or pawl 53 for holding said lever 54 in its .elevated position, of a pair of track-levers 81, 81,v one at each end of the scale-platform, a pawl, ratchet and pawl-carrying slide for and connected with each of said track-levers 81, the shaft of each of. said ratchets having a cam and an operating lever 95 adapted to raise said impression-hammer lever, said operating-levers being connected together, so that the im pression-h ammer-leve r raising mechanism cannot be withdrawn out of the way of the descent thereof until both of said ratohets and connecting links andlevers for withdrawing said trigger or pawl 53 from engagement e ceases.

- with said hammer-lever 54, substantially as specified. u

8. In anautomatic weight-recording carscale, the combination with the scale-platform, scale-beam, type-wheel, spring, impression-hammer lever 5t and a movable trigger or pawl 53 for holding said lever 54 in its elevated position, of a pair of track-levers 81, 81, one at each end of the scale-platform, a pawl, ratchet-and pawl-carrying slide for and connected with each of said track-levers 81, 81, the shafts of eaclrof said ratchets having a cam and an operating-lever 05, adapted to raise said impression-hammer lever, said operating-levers being connected together, so that the impression-hammer-lever-raising mechanism cannot be withdrawn out of the Wayof the descent thereof until both of said ratchets receive the same number of impulses through its respective track-lever S1, and connecting links and levers from said levers 95 for operating said impression-hammer lever 54, the shafts of said ratchets having each a further cam 104, and connecting links and levers for withdrawing said trigger or pawl 53 from engagement with said hammer-lever 54, substantially as specified.

- 0. lnan automatic weightn'ecording carscale, the combination with the scale-platform, scale-beam, type-WheeLspring, impression-hammer lever 54.- and movable trigger or pawl 53v for holding said lever 54 in its elevated position, of a pair of track-levers 81, 81, one at each end of the scale-platform, a pawl, ratchet and pawl-carrying slide for and connected with each of said track-levers 81, the shaft of each of said ratchetshaving a cam and an operating-lever 95 adapted to raise said impression-hammer lever, said operating levers being connected together, so that the impressionrhammer-lever-raising mechanism cannot be withdrawn ont' of the Way of the descent thereof until both of said ratchets receive the same number of impulses through its respective track-lever 81,'each of said pawl-carrying slides being provided with a device for temporarily holding its pawl out of operative position in respect to'its ratchet to enable an engine or tender having a dissimilar number of wheels from, a car to pass over the scale-platform without getting said gatichets out of registry,substantially as speci- 10. In an automatic weight-recording carscale, the combination with a scale-platform and track-levers at each end thereof, of a scale-beam and type-wheel connected there-v with, an impression-hammer lever, -a pair of pawls and pawl-carrying slides 88 connected one with each of said track-levers, a pair of ratchets operated thereby, and cams and connecting mechanism for raising the impression-- hammer lever by impulses imparted to said ratchets by said track-levers, substantially as specified.

11. In an automatic weight-recording carscale, the combination with a scale-platform and track-levers at each end thereof, of ascale-beam and type-wheel connected therewith, an impression-hammer lever, a pairiof pawls and pawl-carrying slides 88 connected one with each of said track-levers, a pair of ratchets operated thereby and having each two cams one for. actuating mechanism to raise the impression-hammer lever and the other for actuating mechanism for releasing said lever, substantially as specified.

12. In an automatic weight-recording car- 'scale, the combination with a scale-platform and track-levers at each end thereof, of a scale-beam and type-wheel connected therewith, an impression-hammer lever, .a pair of pawls and pawl-carrying slides 88 connected one with each of saidtrack-levers, a pair of ratchets operated thereby, the shaft 93 of each of said ratchets having a cam' 94, bent levers 95 operated by said cams, link 96 connecting said levers 95, 95, and connecting levers and links, and bent lever 101 for raising the impression-hammer lever 54, substantiallyas specified.

13. lln an automatic weight-recording carscale, the combination with a scale-platform and track-levers at each end thereof, of a scale-beam and type-wheel connected there with, an impression-hammer lever, a pair oi pawls and pawl-carrying slides 88 connected one with each of said track-levers, a pair of ratchets operated thereby, the shaft 93 of each of said ratchets having a cam 94, bent levers 95 operated by said cams, link 96 connecting said levers 95, 95, and connecting levers and links, bent lever 101 for raising the impression-ham mer lever 54-, and each of said ratchet= shafts 93 having a further cam 101, lever 105, a connecting-link 106, lever 107, linlr 108,lcver 109 engaging trigger or pawl 53 to release said hammer-lever 54:, substantially as specified.

14. In an automatic weighing and record ing car-scale, the combination with the scalebeam and spring, of a type-wheel having a shaft. furnished with a gear, a sliding rack 19 meshing with said gear, connecting-rod 18, coupling 17, swivel 16 and clevis 15 connecting said rack with said scale-beam, substantially as specified.

15. In an automatic weighing and recording car-scale, the combination with the scale- ICC:

beam and spring, of a type-wheel having a shaft furnished with a gear, a sliding rack 19 meshing with said gear, connecting-rod 18, coupling 17, swivel 16and clevis 15 connecting said rack with said scale-beam, connecting-rod 20, coupling 21 and link 22 connecting said rack with said spring, substantially as specified.

16. In an automatic weighing and recording car-scale, the combination with the scaleplatform, of two track-levers 81, 81, of two pawl-carrying slides 88, 88, connected one with each of said track-levers, two ratchets 92, 92, having each a shaft 93, furnished with

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