US1600917A

US1600917A - Automatic liquid-weighing machine

Info

Publication number: US1600917A
Application number: US20633A
Authority: US
Inventors: Willaime Georges Louis
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-04-22
Filing date: 1925-04-04
Publication date: 1926-09-21
Anticipated expiration: 1943-09-21

Description

sept. 21, 1926. 1,600,917

G. L.. w1| A1ME AUTOMATIC LIQUID WEIGHING MACHINE Filed April 1, 1925 3 sheets-smet 1 l .'l hv Sept. 21,1926. 1,600,917

` G. .w1L.LA|ME A f ATOMATIG LIQUID WEIGH-ING MACHINE Filed April 4. 1925 C5 'Sheets-Shee'i 2 AUUHNEY @HMC/a Sept. 21 ,Y 1926.

G. L. WILLAIME AUTOMATIC LIQUID WEIGHING MACHINE F'led April 4, 1925 3 Sheets-Sheet 5 Patented Sept. 2l, 1926.

:PA/TENT IF'FIIC'E.

GEORGES. LOUIS 'WILLAIME/.i' OF PARIS, FRANCE.

AUTOLMTICA LIQUID-WEIGHINGf IMACHINE.

^=Applicat-in filed- April- 4, 19225,v -Sera1No.f20.633 and in France Apri1v22, 1924.

The object of my invention is to provide ani, automat-ic liquid-.weighing machine.

In-ordenwto makemy said invention more clearly understood I- have illustrated, as an 7'5 example, an embodiment .thereofrv in and by adrawing1 appendedhereto and .wherein Figurel 11 is. a vertical section .of my niarChine on ylinef 1-1-Fig. 3;

:Figure-2 :is a;,fpartsectional side view .1o thereof.

iFigures.3.-andy4 are sectio11s.along lines v3-3.ande-4i, respectively, of Fig. l.

Figuresigand are, respectively, a part- Seotional side view of. a modification and a 15 mention alongline6-6 thereof.

111 all the' figures the same reference letdZaTS denote the same parts.

:iMyy weighing-machine .is .composed essentially ofv a reservoir Rfinto which is fed the liquidato .bew,eighed;va second reservoir F 'forming a v fioatinside thevffirst one; and a Weight movable Within reservoir 'F and .correspondinggtothequantity of liquid discharged at each` weighing. Said weight M .25 will beioperatech lthatyis to say alternately liftedfanddowered, by a hydraulic device, the piston. P ofrwhich isadapted to. alternately nelease and engage weight y-Mf by .meansofhooks K.

AvReservoirxR is providedwith an linlet valve S for the liquid having av counterpoise ci, and yis yadditionallyprovided with a sloping bottomed circulargutter designed to collect .liquid overflowing from reservoir R;

saidgutter has at its ylowest part a double 4valve .j -j fitted with a counterpoise c` and zpermittingrthefliquid to be discharged either Yfor shipment or into a tilting vessel V, according as the .counterpoise c is :thrown to .40 the right or to they left. (Figure 2). The .hydraulic device, which is` aisinglc action one, comprises a distributor d of yany type piston, slide-valveor even a two-waycock) `vwhich sometimes permits waterrom the chargingtrough to be led to'the cylinder of lthede'vice, and sometimes permits this cylindeigwwhich then constitutes a hydraulic 'brake,` to' bel `put -into communication. with the outlet.

VFrom the foregoing explanation it .becomes obvious thatiin order to effect a weighing,- the 'following operations will have to be accomplished successively, to :wit: 4

f 1. "Bring up l weight Mf thnsfreleasing the im f-fio'at'F allow :the liquid to imma" in g ,open

valve j and waituntil the liquid overliows .the inner edges of reservoir R.

2. .At this moment close inlet valve S.

Float F having become balanced as the excess of liquid which has overliowed. is evacuated through valve j; ,reverse .the double valveand open valve 4. Operate the distributor d to let down piston P which is at the time at the top ot its travel. Due to thismotionweight M will descend and rest on the bottom of ioat F which it will then tend tobi-ing downiuntil aquantity of liquid equal .toweight has been evacuated by overflowing into the gutterand then discharged. through valve j. This will happen when, the piston having gone down low enough, hooks K have been released -from contact with suspension ears K and the F and M sethas become. a treefioat.

These four operations, which constitute the complete cycle, will 1then begin yagain and continue being repeated in an automatic manner.

In fact, the piston being atbottom ofv its travel, as above explained and las shown by the drawing, tappet T will act on thc-disH tributor, thus opening the cylinder t-o water admission.

' The piston will thenv 'go up, hook up weight M and lthe linger t carried by oat-reservoir F will act on the counterweighted lever of the inlet valve S to open that valve.

v Continuing' upwards float F will, by means of asecond finger zf, reverse the double valve j-j, opening valve j.

A moment afterwards, the pistonhaving reached the top otits travel, the lioat gets near it too, the level ofthe liquid tending to become flush with the overfall constituted by the edge of reservoir lt.

After fiush level is reached, overflow takes place and this overflow is utilizedto start the above-indicated operations 2, 3 and 1i.

rThe part that, utilizing ythe overflow. is employed to actuatefthe necessary operating motions is the container or vessely V. supported by av forked lever .the other end of which carries a balancing counterweight D.

Saidcontainer has, :atits lower part, an; out- Container V having received aA suiiicient quantity of overflow-u liquid will, sini: dawn Cil and shut valve S, the counterpoise of said container acting on the counterweight c of said valve (movement 2).

Container V being lowered, its contents will run out through the outlet of the container into a discharge trough N, and as soon as it has emptied it will be raised by the action of its counterweighted lever, the terminal D2 of which will engage a hinged tappet r carried by a vertical control rod U and likewise move said rod upward. A finger 25 fixed to the control rod will engage and operate the double valve j', during this movement, indicated in step 3; the upper end of the rod being attached to a cross-head /Zf to which the stem of the piston valve d3 of the distributor is also attached.

Duo to the upward movement of vessel V and through the same control rod U operation e of the distributor will be effected.

As will be apparent the working of the device is automatic and dependent only on admission of the liquid to be weighed.

lf, in fact. such admission should cease on account of the working being stopped through any cause, piston P having gone up to the top of its travel would remain there. kept by the water pressure, while float. F would be immobilized at any point of its upward travel until a` new admission of liquid sends itl up again.

Accuracy of weighing' will be the greater' the less the speed with which float F arrives at its lowest position and the smaller therefore the alternate oscillation imparted to the float before it becomes finally balanccd.

In order to decrease the ultimate downward speed of fioat F as well as the amplitude of oscillation three devices may, for instance, be used:

l. As diagrammatically illustrated on the drawing, piston P may be arranged so as to mask, at the bottom of its travel` the water outlet. Gutflow being rendered more difficult the down-motion speed of float F will be decreased. Indeed, consideration of the law governing the downward motion of said floatwill show that the reaction push of the liquid increasing according to sinking, the speed will already tend to go on decreasing.

9.. Float Fs immersed cylindrical part may de fitted with one or a pluralityT of fins which will increase friction and damp oscillations. The drawing shows a fin or paddle made up of two angle-pieces.

The edge or rim constituting an overfall sill for reservoir R may not be horizontal and continuous but have a notch such as ll' (or a series of indented notches) which will render more accurate the final balancing of the float at a precise level, such level being determined by the lower secondary sill.

The above described device, is, of course, to be combined with a suitable counter or meter registering the number of oscillations. Of course, also the special arrangement of counterpoises, rods, and tappets shown by the drawing is merely indicative limitative, it being permissible to i connections required for operating oie various valves or distributors in different ways which in no manner affect the essential fe: tures of the machine.

In the modified arrangement represented in Figures 5 and 6, the hydraulic device is located at one side of reservoir R and parallel with the axis thereof, the weight being lifted by a cable and pulley connection. The parts common to this construction and the one first described are indicated by the same reference letters as in the first construction but with the addition of the prime mark. The parts designated L in Figures 5 and (j are three vertical columns which jointly support at their tops a frame L carrying a pair of guide pulleys L2 over which passes a cable L3 connected at opposite ends with the weight M and the piston P. rlhe distributor IZ is here shown as of the plug valve type instead of the piston valve type. rlhe figures indicated represent the apparatus in the piston-ascent stage, the tributor valve having been opened by means of a lever fm. connected to the control rnd U', which latter has itself been actuated by the ascent of vesse V after its cinpty'ig. exactly as in the first form. The piston l descends under the influence of the pre rc of the water admitted through the diev ributor d', raises weight M and thus enables float F to rise by fiotation on the liquid to be weighed which enters through the then open valve S.

Having now particularly ascertained and described the nature of my said invention well as the manner in which the saine is to be performed, I declare that what l claiin is:

l. Liquid weighing apparatus, comi rising a reservoir to receive liquid to he weighed; an overow gutter on the re" r voir having a discharge outlet; an inlet valve to control the supply of liquid to the reservoir; a rising-and-falling float tank in said reservoir; a weight movable within and tively to the tank to cause the saine to displace into the overflow gutter a prede mined quantity of liquid; a device for rais ing and lowering the weight; and a train of connections between said device and said valve for automatically controlling the movements of the fioat tank and weight.

2. Liquid weighing apparatus, comprising a reservoir to receive liquid to be weighed; an overflow gutter on the reservoir having a discharge outlet; an inlet valve to control the supply of liquid to the reservoir; a risingand-falling fioat tank in said reservoir; a

llt)

weight movable within and relatively to the tank to cause the same to displace into the overiilow gutter a predetermined quantity ot liquid; a hydiaulic device for raising and lowering the weight; a distributor for regulating the supply of motive fluid to said device; and a train ot connections between said distributor and valve for automatically controlling` the movements of the float tank and weight.

Liquid weighing apparatus, according to claim Q, in which the hydraulic weightoperating device embodies a cylinder and piston, the latter having connections 'with the weight; and in which the connecting train between the distributor and the inlet valve embodies a control rod connected with a piston valv-e comprised in said distributor, so that said piston valve is shifted in accordance with the movements of said rod.

4. Liquid weighing apparatus, comprising a reservoir to receive liquid to be weighed; an overflow gutter on the reservoir having a discharge outlet; an inlet valve to control the supply et liquid to the reservoir; a rising-and-falling loat tank in said reservoir; a weight movable within and relatively to the tank to cause the same to displace into the overflow gutter a predetermined quantity ot liquid; a device for raising and lowering the weight; and a train ot connections between said device and said valve .tor auto-- matically controlling the movements oit the lloat tank and weight, said train including a movable vessel disposed exterior to the reservoir and adapted to receive the. liquid discharged from the overtlow gutter.

5. Liquid weighing apparatus; according to claim 4, in which the movable vessel is supported by a counterweighted lever which normally holds it in raised position, but which is rocked and thereby caused to close the inlet valve when said vessel sinks under the weight of the liquid discharged into it from the gutter.

6. Liquid weighing apparatus, comprising a reservoir to receive liquid to be weighed; an inlet valve to control the supply ot liquid thereto; a rising-and-falling float tank in .the reservoir; a weight movable within and relatively to said tank to cause the same toA displace a predetermined quantity of liquid from the reservoir by overflow; a device tot operating said weight; a controller for said device; and a device to receive the overflow from said reservoir having separate means associated with it ttor operating said con troller and said inlet valve. r

7. lVeighing apparatus, accordingI to claim 6, in which the receiving device comprises a vertically-movable vessel disposed exterior to the reservoir; and in which the controlleroperating means and the valve-operating means are respectively actuated on the upward and downward movements ot said vessel.

8. Liquid weighing apparatus. comprising a reservoir to receive liquid to be weighed; an inlet valve to control the supply ot liquid thereto; a rising-and-talling lloat tank in the reservoir; a weight movable within and relatively to said tank vto cause the same to displace a predetermined quantity ot liquid from the reservoir by overflow; a device tor operating said weight; a controller for said device; a rising-and-talling vessel disposed exterior to the reservoir in position to receive the overtlow therefrom; a weighted lever whercon said vessel is mounted and tending to raise the same, but yielding when the vessel is lilled to permit its descent; said lever adapted to operate the inlet valve during such yielding movement; and means actuated by the upward movement of said vessel when emptied for operating the controller.

9. Liquid weighing apparatus, comprising a reservoir to receive liquid to be weighed; an inlet valve to control the supply oit liquid thereto; a rising-and-talling 'float tank in the reservoir; a weight movable within and relatively to said `tank to cause the same to displace a predetermined quantity ot liquid from the reservoir by overflow; a device for operating said weight; a controller ttor s device; a rising-and-talling vesse disposed exterior to the reservoir in position to receive the overllow therefrom; a verticallymovable rod tor operating said controller; means tending to move said vessel upward but yielding when the latter lills to permit its descent, said means adapted to operate the inlet valve during such yielding movement; and means tor actuating said rod during and consequent upon the upward movement of the vessel.

In testimony whereof I alliX my signature.

GEORGES LOUIS VILLAIME.