US616857A

US616857A - Weighing-machine

Info

Publication number: US616857A
Authority: US
Publication date: 1898-12-27
Anticipated expiration: 1915-12-27

Description

Patented Dec. 27, 1898.

No. 6s,357.

F. H. RICHARDS.

WEIGHNG MACHINE.

(Application filed Feb. 8, 1898.)

5 Sheets--Sheet I.

(No Model.)

3 L 1 m W M m i m A m A WAWH m: NORRIS perms co. PNaro-Lmq., wAsHmGToN, u. c

No. 66,-857. Patented De. 27, maa..

F. H. RICHARDS. WEIGHING MACHINE.

(Application filed Feb; a, 1893.

mil/km u Wie:

mc NORRIS PETERS co, PNOTOLITHO.. WASHINGTON. o c.

Patented Dec. 27 1898.

F. H. RICHARDS. -WEIGHIN-G MACHINE.

(Application filed Feb. 8, 1898.)

(N o Model.)

5 Sheets-Sheet 3.

YHE Noms ?mms co., PHDTOUTHQ, WASHINGTDN, b. c.

No. 66.857. Patented Dec. 27. 1398.

F. H. RICHARDS.

WEIGHING MACHINE.

(Application filed Feb. B, mggg 5 Sheets-Sheet 4.

' (No Model.)

'iiiiiiililli No. 66,857. Ptented Dec. 27, 893. F. H. RICHARDS.

WEGHNG MACHNE. (Application filed Feb, a; 1898. (No Model.) 5 Sheets-Sheet 5.

ylll/IA I' THE NORRIS PEYERS CO. PHOTOJJTHO., WAHINGTDN. D. CV

w nmuwn..

UNITED STATES PATENT Ostren,

FRANCISII. RICIIARDS, OF HARTFORD, CONNECTICUT.

WEIGHING-MACHINE.

SPECIFICATION formng part of Letters Patent No. 616,857, dated December 2'7, 1898.

Application filed February 8,1898. Serial No. 669,*548. (No model.)

To rr/ZZ whom, it may conccrn:

Be it known that I, FRANOIS H. RICHARDS, a citizen of the United States, residing at Hartford, in the eounty of I-Iartford and State of Connecticut, have invented certain new and useful Improvements in lVeighiug-llaehines, of which the following is a specification.

This invention relates to weighingmachines, the object being to provide an improved machine of this character adapted more especially to be mounted on a counter and automatically to weigh and deliver into bags or other receptacles comparatively small charges of material, and it includes improved means for controlling the stream, said means involving a pair of stream-controllers, and means for advancing` said stream-eontrollers simultaneously a predetermined distance and for retracting one and sirnnltaneously ad- Vancinp; the other by reason of which the mass sustained by the stream-eontrollers is loosened up to permit that stream-controller which steps the flow of material to the loadreceiver to be advanced without undue resistance thei-eto.

My improved machine also includes,in combination with strean-supplying means, a pair of concentrically-reciprocatory stream -controllers, a rocker provided with projecting` arms, and links connecting the arms with the respective stream-controllers,and the streamsupplying means may consist of a hopper having a series of stream-controllers at least two of which are operated in such a manner that they advance simultaneously to a certain point, during which period only one of the stream-controllers acts on the supply-stream and beyond which period the other streamcontroller is advanced relatively to its companion to arrest the supply.

The strean-eontrollers consist, preferably, of pan-valves, and I have illnstrated three of them, two of said valves serving to reduce the Volume of the supply issuing from the hopper or similar device, while the third or supplemental valve outs off the reduced or drip stream, and the nounting and operation of the several valves are such that the auxiliary valve does not come into contact with the material until the close of the drip period, or when the load is completed, so that a very slight resistance is offered to the rapid closure of said valve, and the effective stroke is consequently an exeeedingly short one.

Another feature of the invention resides in means for actuating the stream-controller by power derivecl fron the closer, and to accomplish this result I provide,preferably,a powertransmitter and connect the same with the stream-controller and with the closer, said power-transmitter coperatin g with the weighing mechanisn and terminating, preferably, ina foot having` two faces disposed at angles to each other. This foot is adapted to coact with the beam and with a projection at the poising end thereof, the idle face of said foot resting upon said projection during the flow of the supply-stream into the load-receiver, so that when the bean or poising end thereof falls it serves the usual purpose of controlling the action of the valve mechanism. On the opening of the closer to discharge a load the foot is shifted out of operative relation with the scale-beam, so that said beain can return to its primary position while the closer is open without Operating a valve; but when the closer begins to shut the angular face or foot-piece is caused to ride upon the beam, which at this timeis stationary, thereby forcing the power-transmitter Upward to result in retracting the stream-controllers or valves. Another feature of the invention consists of an improved beam mechanism including` a main beam and an auxiliary beam fixed to said main beam at one side and extending beyond the axis of said main bean and graduated, commencing at O, near the end of said auxiliary beam farthest from the axis of the main beam, and a weight mounted to move upon the auXiliary beam and employed when weighing out leads of different sizes; and I prefer to enploy a second anxiliary beam having,` thereon a movable weight, the purpose of which is to conpensate for a bag, it being usual to Weigh the bag as a part of the charge. The main beain is counterweighted at one end, and the load-receiver is Suspended at the other end thereof, said beam being fulcrumed bet ween .the two points; and I prefer to secure the auxiliary beams to the counterweight, and they extend for some distance beyond the axis of the main beam, the load-weight being movable between said aXis and the extreme end of the auxiliary beam, which is gradu- ICQ ated between its free end to the axis of the main beam.

In the drawings accompanying and forming part of this specification, Figure l is a front elevation of ny improved weighing-machine. Figs. 2, 3, and l are side elevations of the machine as seen from the right in Fig. l and show the positions occupied by the different parts during the making and diseharging of a load. Fig. 5 is a longitudinal central section of the same. Figs. 6 and T are central views of the valve meehanism in its two final positions. Fig. S is a longitudinal central section of a valve-actuator. Fig. 9 is a transversc section taken in the line cc tr, Fig. 8, and looking in the direction of the arrow; and Fig. 10 is a sectional plan view taken in the line y y, Fig. 5.

Similar characters designate like parts in all the figures of the drawings.

The framework for supporting the different parts of the machine consists of the chambered base z?, in which the diseharge-hoppe' ll' is located, the side frames or uprights 3 and r, mounted on the base, and the braekets 5 and G, resting on the uprights and eXtending oppositely from the supply-hopper ll, serving as a convenient means for supplying a stream of material to the load-receiver of the weighing meehanism, and the diseharge-hopper H' is adapted to receive the leads intermittently discharged from said load-reeeiver, and it is substantially funnel-shaped, so that a bagmouth can be placed over the reduced end thereof, as shown in the several figures of the drawings.

The weighing mechanism involves a loadreceiver and a supporting scale-beam therefor and one or more auxiliary beams, preferably fixed to the main beam, and the loadreeeiver and the main scale-beam are preferably of the kind disclosed in Letters Patent No. 55,840, granted to me October 29, 1895, to which reference nay be had. The loadreceiver is designated by G, and the supporting-beam thereof by B, the load-reeeiver being mounted upon the poising end of said beam and the latter being fulcrumed, as at 2', upon the base 9, and the two arms 7 of the beam being joined by the cylindrical weight lV, which extends beyond one of the arms, as represented in Fig. 1, and such extended portion carries a pair of auxiliary beams,hereinafter referred to.

The load-discharging means includes as a part thereof a closer, as L, adapted to cover the usual discharge-ontlet in the load-receiver, and means including a latch for holding` the closer shut. The closer is fixed to a rock-shaft 10, supported in bearings, as 12 and 12', secured near the lower edge of the loadreceiver, and it is shut by counterweights, as 13 and 13', extending rearward therefrom.

The latch for holding the closer shut is designated by L and it is of the ordinary construction, it being adapted to engage the arm lof the rocker R, fixed at its middle to a roch-shaft 15 on the load-reeeiver, the opposite arm 10 of said rocker being connected by the longitudinal rod 17 with the closer L, and said shaft is provided at its opposite end with a crank-arm 18, connected by a rod li! with the closer L, the

rods

17 and 19 noving in parallelism as the closer opens and shuts.

The supply-hopper ll is located over and in position to supply a stream of material to the load-reeeiver G, the supply being controlled, preferably, by a series of pan-valves, two of which cope *ate during a predetermined period to reduee the volume of the supply-stream to a drip, which fiows into the nearly-loaded bucket to complete or top off the load, after which the third or auxiliary valve is operated to cut off the red uced or drip stream.

The two reducing-valves are preferabl y oppositely reeiprocative, and during the rcducing period they move toward each other to reduce the size of the supply-stream, while the auxiliary valve closes under the space between the discharge edges of the two main valves to cut oil' the drip-stream on. the completion of the load.

The main valves are desi gn aiied by V and Y', and the auxiliary valve by Y", and although I have shown two main or reducing valves it is obvious that one of them might be dispensed with. In the present case the valves V and Y are coneentrically reciprocative, they moving forward simultaneously for a predetermined distance, beyond which point the auxiliary valve has an advancing movement for cutting off the drip-stream,while the main valve V is slightly retracted, thereby tending to loosen up the supplyand rednee as far as possible the resistanee to the final closure of the auxilia'y valve, which during the first period of operation of the valve mechanism does not come in contact with the supply-stream. Therefore it will be evident that my invention involves as a feature thereof a stream-controlling means including a pair of steam-controllers and means for advancing said stream-controllers simultaneously a predetermined distance and for subsequently retraeting one and advaneing the other simultaneously beyond this point.

Each of the valves Y, Y", and V includes a cut-Ott portion or valve proper consisting of

blades

90, 21, and 22, and the valves Y and V" are supported for oscillation upon the pivots or studs 23 and l-l, (see Fig. 1,) extending oppositely from the supply-hopper, while the valve V' is Suspended from a similar pair of studs 25 and 26.

The several valves are operated by power applied to the rock-shalt 30, journaled in brackets 30' and 30, extending rearward from the uprights 3 and ut, respectively, and provided with the rock-

arms

31 and 32, and to which are pivoted the links 33 and ill, liliewise attached at their opposite ends to the valves V and Y", respeetively, and the two rock-arms are disposed substantiall y at right IOO IIO

angles to each other and form, in eftect, with the two links, toggles for Operating, when the shaft is actnated, the three stream-controllers or Valves.

The valve V' is furnished with a crank-arm 35, connected with the valve V by the link 30, by reason of which when the valve V is operated by the shaft the valve V' will be moved toward or 'from the companion reducing-Valve.

In Fig. 2 the parts are represented occupying their primary positions, the full Volume of the supply being shown as enter-ing the empty load-receiver and the several valves being wide open. lVhen the load-receiver has received a certain quan tity of material, it will descend, thereby permittin g the three valves, which are gravity-valves, to shut for a short distance and until an actuator becomes effective to inpart a further and accelerated movement thereto, and the positions of the two rock-

arms

31 and 32 and the connecting-links and 37& are such that on the initial motion of the shaft 30 the valves V and V" will be moved sinultaneously under the outlet of the hopper H, while the valve V' moves from the opposite direction under said spout and toward the first-nentioned two valves; but it will be seen that the cut-oil blade 22 is under the cut-oli' blade 20, whereby the first-mentioned part does not come in contact with the supply-stream. At the commencement of the poising period or when the load has been nearly completed the final movement of the several valves will be interrupted by a suitable device for a sul'fieient length of time to permit the reduced or drip stream to enter the load-receiver through the space between the discharge edges of the valves V and V'. hen the load is completed, the valve mechanism is released, at which point an actuator becomes effective for rocking the shaft 30, so that the valve V" is advanced by thrusting the link 34: to the left, and at the same time the pivotal point between the rock-arm 31 and the lever 33 is slightly elevated, and the link 33 is drawn for a short distance to the right, whereby the Valve V is moved in a' corresponding direction or retracted, which results in loosening up the material sustained thereby, so that during the final movement of the valve V" the resistance to the rapid closure thereof is redueed very materiall y and the retraction of the valve Y necessarily follows at this time.

As hereinbefore stated, the several valves or ear 42, apertured to receive the shaft 30 and held in place by the set-screw 43, passing through the same and engaging the shaft. The extreme rear end of the casing is closed, while the opposite or forward end thereof is furnished with a removable cap or plug H, preferably in threaded engagement therewith, by reason of which the ball or rollweight 41 may be inserted or removed from the casing, and when the cap or plug 44 is in place dust or dirt is positively excluded from the inside of said casing, so that free movement of the ball is assured.

The ball ll is of slightly less diameter than the interior of the cylindrical casing-LO, so that it can roll freely from end to end thereof, and to guide said ball in a straight path I preferably mount it upon a track consisting of the rails and 51, disposed in parallelism on the floor or bottom of the casing and upturned at its outer end, as at 52, so that when the lower end of the casing falls, as shown in Fig. a, the result will be gradually to arrest the movement of the rolling weight and to protect the same from in j ury, and said weight preferably abuts against buffers, as 53 and 54, Secured to the opposite ends of the casing and constructed, preferably,ot` leather or other similar material, the buffers being in the form of.

disks held against the plug and the closed end of the casing, respectively, and riveted in place, as at 53' and 54:'.

In Fig. 2 the several valv'es are shown wide open and the rolling weight etl is represented against the inner end or removable plug 44 of the casing. When a certain proportion of the load has enteredthe load-receiver, it descends, as before stated, and as it does so the valves V, V, and V" are permitted to advance by their own weight to their secondary positions, (represented in Fig. 3,) or until a device operative with the ValVes strikes a stop upon the weighing mechanism, which stop arrests the further progress of the valves until the load is completed, and it will be observed on inspection of said Fig. 3 that the floor of the casing is disposed slightly below a horizontal line, comnencing at the inner end thereof, so that when the horizontal line is crossed by the floor of the casing the ball 41 can drop to the right or from end to end of the casing, whereby when the Valve mechanism is released the shaft 30 will be rocled by the weighted end of the casing 40 to operate the valve mechanism in the manner aforesaid.

The means for arresting the operation of the valve consists, preferably, of astop, as 60, of the by-pass type, mounted upon the load-receiver and disposed in the path of the rod or bar 01, fixed to and depending from the rock-shaft 30. At the com nencement of the drip period the free end of the by-pass will be engaged by the rod 61, so as to block temgorarily the movement of the three valves. On the completion of the load the by-pass 00 will pass 'off the rod (il, thereby releasing the g IOO IIO

4: &16,857

valvc-aetuator A, whereby the weighted end thereof can drop to impart to the valves their final movements.

The operation of the several valves is controlled partly by the beam B and partly by the closer L in the following manner: The rock-shaft 30 carries a crank-arn 63, te which the rod 6& is pivoted, said rod terninating in a foot 65, having angular faces 66 and 67, constituting what might be termed the working face and the idle face, respectively, and during the normal operation of the machine the face 67 is held in contact with the projection or antifriction-roll 68 at the poising end of the beam B.

As before stated, the angular face 67 of the foot is held in engagement with the antifriction-roll 68 by means preferably connected with the closer for a purpose that will hereinafter appear. As the beam descends from its highest to its lowest position (shown in Figs. 2 and 3, respectively) the antifrictionroll falls away from the angular face 67, and consequently permits the operation of the valve mechanism.

The means for eifecting the discharge of the load consists of a tripper T in the form of a pin on the reciprocatory rod 64, which strikes the end of the lever 70, pivoted to the loadreceiver, and which in turn lifts the weighted end of the closer-latchL', as shown in Fig. et, and disengages said latch from the rockerR, thereby rcleasing the closer, which is then forced open by the weight of the mass in the load-receiver, the load then being discharged into the hopper and thence into the bag, as G', the mouth of which has been placed beneath the delivery end of said hopper.

The closer L furnishes the power for operating the valve mechanism, the power developed being transferred through the rod 6% to the several valves. On the opening of the closer the foot-piece 65 is shifted thereby relative to the projection 68, so that the upper end of the working or angular face 66 is carried opposite said projection, as shown in Fig. t, and the beam B can return to its normal position without Operating the 'od 6 \Vhen, however, the closer is shut, the angular face 66 is drawn up 011 the antifriction-roll 68 by the closer, thereby thrusting the rod il: upward, and consequently rocking the shaft in a direction reverse to the movements imparted thereto by the actuatorA, whereby the several valves controlling the supply-stream are opened.

The closer-supporting shaft 10 is provided with a rock-arm 75, to which the link 76 is pivoted, said lini; being likewise attached at its opposite end to the rocking lever 7 7 pivoted, as at 78, to the load-receiver and connected at its opposite end to the lower extremity of the red 6& by the link hen the latch L' is tripped, the closer is forced open, and on this operation the link 7 6 is moved to the left, thereby oppositely throwing the link 79, and consequently moving the angular face 67 out of contact with the antifrietion -roll and shifting the footpiece 65 until the extreme inner end or highest point of the inclined working face 66 is opposite said roll. When the closer is opened, the mass is of course discharged, and the loadreceiver being lightened the beam returns to its primary position; but it cannot, as before stated, apply any thrust to the rod 64. On the shuttin g of the closer by the counterweight lS, this motion being a rapid one, the angular faces 66 and 67 are caused to ride upon the antifriction-roll 68 by reason of the connections between the said closer and footpiece, so that the rod 6-t is elevated to open the several valves and permit the supply to enter the load-receiver.

To prevent the closer L being forced open by the infiowing stream, I prefer to mount in the receiver the angular plate 88, Iianged at its opposite ends, as at 86, said ilanges being secured by rivets or other convenient means to the opposite sides of the load-receiver, and this plate is of such width as to receive the full Volume of the supply, as shown in Fig. 5, on the opening of the several valves, thereby to prevent the application of an undue pressure upon the closer during its final shutting movement.

My improved machine is especially adapted for store use, where it can be mounted upon a counter for weighing out loads of material in comparatively small quantities, and I provide means whereby loads of different weights can be automatically weighed out and delivered into bags, &e

An auxiliary or load beam is represented at 80, it eonsisting of a longitudinal arm fitted at one end in a notch 8l in the extended portion 82 of the beam-weight XV and held in the notch by a cap or flat plate 83 and against the upper flat face 84: of the weight and maintained in place by the set-screw 85, in threaded engagement with the beam-weight, said anxiliary beam being held against longitudinal movement by the pin 86, disposed in a bore in the weight \V and fitting in a keyway in said auxiliarybeam. The auxiliarybeam extends considerably beyond the axis of the main beam B and is graduated, commencing at O at the end farthest from said axis, the graduations indicating pounds and halfponnds, and said auxiliary beam carries for sliding movement a load-weight 87, adaptcd to be held in an adjusted position by the index 88, secured to said weight and fitting in notches on said auxiliary beam.

XVhen the index 88 of the load-weight 87 is in the notch corresponding with 0, the load-receiver and the beam mechanism will be exactly balanced.

The range of movement of the weight 87 is between the Zero-point at the right end of the beam and the aXis 2' of the main beam l.

hen the weight 87 is moved from the zeropoint toward the left, it adds to the efieiency of the beam-weight XV, and the variation is IOC IIC

indicated in pounds on the scalc of said auxiliary beam.

In the several figures of the drawings the weight 87 is upon the 10 mark. hen the weight is moved to the right, the efficiency of the weight W is decreased.

It is cnstomaryin weighing out goods such as fleur, sugar, dac., to include the bag as part of the weight, and I have represented a device for compensating for the bag, which is not placed upon the weighing mechanism, the means consisting of an auxiliary beam 90, graduated at its right end and carrying the bag-weight 91, said auxiliary beam being fitted in the notch 92 on the main weight W and being in parallelism with the auxiliary beam SO and held in place by the means which secures said beam 80. Said bag-weight is provided with an index 93, fitting in notches in line with the graduations of the auxiliary beam.

Should it be desired to weigh out a tenponnd package, the auxiliary or load weight 87 is moved along the beam 80 until the in des: SS fits in the notch therein opposite the 10 77 mark, and the weight 91 is moved along the beam until it is opposite the half-pound mark, thereby subtracting from the e'tliciency of the weight XV and consequently adding in effect a half-pound to the load-receiver, so that in reality the load of material discharged is nine and one-half pounds.

For the purpose of facilitating the cleansing of the load-receiver I prefer to nake the front and 'ear walls 95 and OG thereof removable, said walls being adapted to slide in gnideways, as 95', formed by the bent-over portions or ilanges OG' of the front and rear walls of the load-receiver and one portion of the right-angular plate 97, fixed in the loadreceiver by a series of rivets, as 98.

The lower ends of the removable walls fit over the upper ends of the inclined portions 09 and 09' of the fixed portion of the loadreceiver, and by removing either one of said sliding

walls

95 and 96 gives ready access to the interior of the load-receiver.

The operation of the hereinbefore-described machine, briefiy stated, is as follows: In Fig. 2 the parts are shown occupying their normal positions, the angular face 67 of the rod (3& beingin contact with the antifriction-roll 68 of the main beam B and the valves V', V, and V" being wide open, while the closer L is held shnt by the latch L' engaging the rocker R.

When a predetermined portion of material has been received by the load-receiver, this descends, and the antifriction-roll 68, falling away from the rod 64:, will permit the valves V, V', and V" to close by gravity, or until the rod (il, which is operatcd by the valves during the first period of their motion, strikes the by-pass GO, at which time the botton of the casing 40 will have passed below a horizontal line, permitting the weight 41 to roll to the outer end of the casing, as shown in Fig. 3. \Vith the parte in the positions shown in said figure the valves will be held so that a drip-stream can fiowbetween the discharge edges of the valves V and V' and into the load-receiver to complete the load.

When the load is completed, the by-pass GO will pass off the rod 01, thereby releasing the actuator A, so that the weighted end thereof can -drop to impart an accelerated movement to the Valves V, V', and V" to swing the lastmentioned under the other two, the valves V and V' being slightly retracted to loosen u p the supply. On the final movement of the valve the tripper T strikes the lever 70, which in turn disengages the latch L' from the rocker R, thereby releasing the closer L, which is forced open to discharge the load into the hopper H' and from thence into the bag G'. On the opening of the closer the rod 64 is shifted out of operative relation with the beam B by reason of its connections with said closer and the beam returns to its primary position. On the shutting of the closer the valve mechanism is opened in the manner hereinbefore specified and the closer L is latched, when the operation is repeated.

Having described my invention, I claimli. The combination, with weighing mechanism including a load-receiver, of streamsupplying means; a pair of stream-controllingvalves one of which operates as a redncing and the other as a cut-off valve; a rocker provided with projecting arms; links con necting said arms, respectively, with said valves 3 and means controlled by the weighing mechanism for Operating said valves.

2. The combination,with stream-supplying means, of a pair of concentrically-reciprocative streamcontrollers; a rocker provided with projecting arms; links connecting the arms, respectively, with the stream-controllers; and a casing having a rolling weight, said casing being connected with the roeker.

3. The combination,with stream-supplying means, of a pair of concentrically-reciprocative valves one of which serves as a redncing and the other as a cut-off valve; a rocker provided with projecting arms; links connecting the arms, respectively, with the valves; an actuator for said valves; and aseccnd reducing-valve coperative with the first mentioned reducing--valve and operatcd by said actuator.

4. The conbination,with stream-supplying means, of a pair of concentrically-reciprocative valves one of which serves asareducing and the other as a cut-off valve; a shaft pro vided with projecting arms; links connecting the arms, respectively, with the two valves; and a second reducing-valve connected with the first-mentioned reducing-valve.

5. The combination,with strean-supplyin g means, of a pair of coneentrically-reeiproca tive valves; a rock-shaft provided with projecting arms; links connecting the arms, respectively, with the two valves; an actnator IOO IIO

connected with the shaft; and a third valve connected by a link with one of the first-mentioned valves.

G. The combinatiomwith stream-supplying means, of a gair of concentrically-reciproeative valves one of which serves as a reducng and the other as a cut-off valve; a roeker provided with projecting arms connected, respectively, with the two valves; an actuator mounted upon the rocker; and a second redncing-valve provided with a crank-arm connected by a link with the first-mentioned valves.

7. The combinatiomwith stream-snpplying means, of a pair of coneentrically-reciprocative valves; a rocker provided with projecting arns connected, respectively, with said valves; an actuator mounted on the roeker and involving a rolling weight; weighing mechanism including a load-receiver; and conneetions between the weighin g meehanism and said rocker.

S. The combination, with a pair of streamcontrollers, of means for advancing said stream-controllers simultaneously a predetermined distance, and for subsequently retracting one and simultaneously advancing the other.

0. The comhination, with a redueing-valve and a cut-off valve each embodying a plate or valve proper, the plate or valve proper of the reducing-valve being above the corresponding part of the other valve, of means for advaneing said valves sinnltaneously a predetermined distance, and subsequently for retracting the red ueing-valve and simultaneously advaneing the cut-off valve.

10. The combination, with apair of streamcontrollers, of means for advaneing said stream-controllers simultaneouslya predetermined distance, and subsequently advancing one stream-controller and for retracting the other stream-controller during said period of advaneing movement.

ll. The eombination, with a pair of concentrically-reeiprocative stream-controllers, of means for advaneing said stream-controllers simultaneously a predetermined distance, and subseqnently for advaneing one and sinultaneously retracting the other streameontroller.

12. The combination, with stream-supplying means, of valve mechanism for controlling the stream; and means for Operating the valve mechanism, including a longitudinal casing, a rolling weight in said easing, a track in the oasing upon which said weight rolls, a removable eap elosing one end of the casing, and buifers, one of which is seeured to the cap and the other of which is secured to the outer end of the casing.

13. The comhination, with stream-supplying means, of valve mechanism; a rocker connected with the valve mechanism; a Swinging casing connected with the rocker and having a removable cap at one end and containing a rolling weight, and a track upon which the weight is adapted to roll; a bar connected with the casing; weighing mechanism including a load-receiver; and a stop carried by the weighing mechanism and disposed in the path of said bar.

ll. The eomhination, with stream-supplying means, of a pair of stream-controllers; means for advaneing said stream-controllers simuitaneonslya predetermined distance and subsequently for retraeting one and simultaneously advancing the other; and means for arresting the movement of the streamcontrollers at a predetermined point.

15. The eombination, with weighing mechanism involving a load-receiver, of streamsupplying means therefor; a pair of streamcontrollers; means for advancing said streameontrollers simultaneously a predetermined distance, and for subseqnently retracting one and simultaneously advancing the other; and means operative with the weighing meehanism for temporarily arresting the movements of the stream-controllers.

16. The combination, with weighing mechanism involving a load-receiver having a closer and a scale-heam, of stream-supplying means; a strean-controller; a power-transmitter connected with the stream-controller and adapted to eoperate with one of the members of the weighing mechanism; and connections between said power-transmitter and the closer for shifting said power-transmitter on the opening of the closer, and for transferrin g the power of the closer to the power-transmitter, and through the latter to the stream-controller, foroperating said stream-controller on the shntting of the closer.

17. The eonbination,with weighing mechanism involving a loadreceiver having a closer and a scale-beam, of stream-supplying means; a stream-controller; a projection on the weighing meehanism; a power-transmitter connected with the stream-controller and having a foot the face of which is angnlar and is adapted to eoperate with said projcction; and means operative with the closer [or Shifting said power-transmitter.

lS. The combinatiomwith weighing mechanism involving a loadreeeiver having a closer and a scale-beam, of stream-snpplying means; a stream-eontroller; a power-transmitter connected with the stream-eontroller and terminating in a foot having two an gular faces; a projection on the weighing meehanism, adapted normally to coperate with one of said angular faces; and means operative with the closer for shifting said power-transmitter.

19. The combinatiomwith weighing mechanism involving a load receiver having a closer and a seale-beam, of stream-supplying means; a stream-controller; a projection operative with the weighing mechanism; a power-transmitter connected with the streamcontroller and having an an gnlar face adapted to coperate with said projection; and a lever upon theload-receiver, connected, respec- ICO IIO

IZO

tively,with the Closer and With the said powertransniitter.

20. The eonhination,with. Weighing meehanisn involving a loadreeeiver having a Closer and a seale-beam, of stream-snpplying means; a strean-eontroller; a power-transnitter connected With the stream-eontroller and having an angula' face adapted to engage the seale-bean; and means eo'neoting` the elose' and power-transnitter for shifting the latte' on the movement of the Closer.

21. The eonbination, With a 1oad-receivei` having a Closer, of a sea1e-hean supporting the load-receiver; stream-supp1yiug means; a stream-eontroiler; a poWent-ansmitter eonnected With the stream-eontroller and having an anguiar face eope'ative With the Scalebean; a lover monnted on the ioad-reeeiverg and links eonneeting` the lever with the powertransnitter and the Closer, respeetiveiy.

22. The eombinationnvith Weighing meehanism invoiving a load reeeiver having a Closer and a scale-hean, of a 'od connected With the st-eam-controller and having a footpieee provided With an angnlar face adapted to rest upon the seale-bean; and eonneotions between the rod and the Closer, for shifting said rod on the movement of the Closer.

23. The eonbination,with a load-reeeiver, of an osoillatory eounterweighted main bean Sustaining the loadreeeive' the counterweight having a noteh; an auxilia'y beans fitte'd .in said noteh; a key seated in the bore in the eonnterweight and fitting in a Teeess in the auxila'y hean; a piate fitted upon the Weight and se'ving to hold the auxilia'ybeam in place; and a screw in threaded en gagement With the Weight and adapted to maintain the plate in position.

FRANCIS H. RICHARD&

Witnesses:

FRED. J. DoLE, HEATI-I SUTHERLAND.