USRE13074E - Ments - Google Patents

Description

w. LEINERT.

APPARATUS FOR WEIGHING LIQUIDS.

Reissued Jan. 4, 1910.

APPLIOATI'0I FILED SEPT. 14, 1909.

INVENTOR BY 7 fig ALZW ATTORNEYS WITNESSES:

.' To all whom it may concern: Be it known that I, VVENznL L'ninnn'r, en-

I UNITED STATES PATENT OFFICE;

wnNzEL LEINEBT, or MOSCOW, Russia, assren on, BY manor m mnsnn assmnms, or ONE-HALF ro FRANK c. LLOYD, or new Yonx, my.

APPARATUS FOR wEIGEIIl'G LIQUIDS.

Specification of Reislued Letters Patent. Beissu'ed J an, 4, 1910.

Original No. 888,082, dated August 13, .1907, Serial No. 267,561. Application for reissue .flled September 14, 1809. Serial No. 517,751.

gineer, a subject of the Russian Emperor, and resident of Moscow, Russia, have invented certain new and useful Improve ments in Apparatus for Measuring Liquids, of which the following is a specification.

With my apparatus for measuring liquids consisting o a pair of measuring vessels of the same size filled alternately by a distributing trough (chute) and emptied by siphons set in operation, as further described, by tilting of the said vessels on their axis, whereby the trough is reversed alsothedrawback has shown itself that with an unequal supply'of the liquid, toward the end of the filling, at the moment of the reversing of the trough, a column of liquid of a varyling thickness presses upon the surface of t e liquid in the measuring vessels, which interferes with the precision of the measuring. In order to remove this drawback in v the present invention which relates to liquidmeters of the above-mentioned kind, the arrangement has been made that, shortly before the termination of the filling, the supply is for each vessel gradually and automatically slackened, that is to say, the pressure of the entering column of liquid u on the surface of the liquid in the vase is reduced and made uniform. This is ata throttle-screen in the tained' by providin measuring vessel, which supply ipe foreac is regu ated by a float arran din the vessel and raised toward the en of the filling period.

v Atfurther drawback was, that with changing temperature of the liquid to be measured the unequal displacements of the centers of gravity on both sides of the axis of tilting of the unsymmetrical vessels, affected badly the accuracy of the apparatus. 'The invention therefore further comprises a. compensationspipe on each measuring vessel, by which the bad influence of changing temperature is avoided.

The drawing illustrates the new "device on a 11 md meter.

Figure 1 is a vertical section of the same,

Fig. 2 a cross section. 31s an enlarged sectional view of the tilting spout.

Similar letters refer. to similar parts throughout the several views.

a are the two measuring vessels of equal size, throu h which cross-bars bpass, which rest with t eir sharp-edged ends on supports 0 of the bottom plate d in a manner that the tilting-axis lies outside of the plane of the center of gravity of the contents of the vessel, while a com nsating-weight e fastened to the back wal of the smaller part of the vessel, keeps the vessel, when empty, in a horizontal position, so that it rests with the weighted end on the ledge f or an adjusting screw'g arranged in the same. At the opposite end of the measuring vessel is arranged a. siphon h which dips into a recessed part i of the bottom of the measuring vessel covered by'a sieve y, and whose crown or vertex is, when the measuring vessel is laced horizontally, still above the highest evel of the liquid. The wall of the vessel is higher on this side, in order that the liq-v uid, on the vessel being tilted, cannot flow over the edge of the same. If the measuring vessel has received the uantity of liquid to be measured the part 0 the vessel opposite to that with the weighted wall, becomes the heavier, and the vessel tilts until it strikes I against the rubber plate 2 on the base-plate.

The level of the liquid is now above the top of the siphon, the siphon commences to act and the vessel is emptied, whereupon the same vessel is tilted back into the horizontal position by the counter-weight e.

The liquid is conveyed alternately through the pipe is and trough l to the one or other measurin vessel. .For this purpose the trough Z tilts about an'axis on the frame, the tiltingmovement being limited by projections *0 on the support n of the frame, so that the trough does-jiot lie 11 on the wall of the vessel which is bein fill in order that the tiltin of the vesse can take place uninfluence by the, pressure of the trough. The full ves's'elwhen tilting strikes a ain'st the trough l and reverses, it, so that the iquid now enters into the other vessel. To avoid splashingof the entering liquid, under the semi-circular cover. of the distributing trough a' ca m is fastened onthe lower end of the su p y pipe.

The a (we arrangement has the drawback-that with an -un ual supply of liquid toward the end of the mg, at the commencement of the redescribed and already known versing of the trough a column of li uid of a varym thickness presses on the sur ace of the liqui in the vessel to be filled, by whichthe measuring is rendered inexact. To remove this drawback I have arranged in the supply-pipe In two throttle-screens p with levers 1', which are turned by the rods of the floats y, when the float rises alternately in one or the other measuring vessel, whereby the su ply is slackened toward the end of the filfing, so that the inpouring quantity of liquid is reduced and made more uniform,"

'- and the measuring made more exact. The

floats must lie exactly above the tilting-axis of the vessels.

In order to be able to vary the d of the throttlin the rod 8 of the float g is provided at its ower, end with a nut t, which, when the 'float rises, strikes against the arms u of the support it of the frame. According to the. adjustment. of the nut t the throttleof the liquid each measuring vessel has been provided on the back-wall, which is near to the tilting-axis with a compensation-pipe '11, preferably made of a material of a greater coefiicient of expansion than the material of the measuring vessel. The compensationpipe 1: is provided with an adjustable reguating-weiglht w and carries an air pipe :1: through w ich the air can escape, when the liqilld enters the compensation pipe.

- will be regulated.

refer to construct the body of the vessel a 0 sheet iron and a comfiensating tube u of brass or copper. It w1 be understood that under changing atmospheric conditions or with liquids of dlflerent temperatures the resultin ex a'nsion and contraction of the metal 0 the ody portion a will be relatively greater at the left of the cross bar I), refer ring to Fig. 1, than at the right thereof. By the provision of the compensating tube u this difierence of ex ansion or contraction ere liquid of a greater specific gravit is measured and where the vessel a woul normall tilt before the required volume of liqui had been received by the vessel 0 the weight to would be ad- I justed to either retard or induce such tilting action.

By a suitable sizing of the throttle screens and the compensation-pipes the litgliidmeter acts in such an accurate manner, t at it can be used even for physical and chemical meas- 'ahat I claim as my invention and desire to secure by United States Letters Patent 1s: 1

1. A measuring apparatus comprising in combination independently tiltable vessels, a tiltable supply or fillin spout o )erated by said vessels to alternate y shut oil supply of liquid thereto, a sup ly pipe for said spout, throttle screens in said pipe for retarding the passage of liquid therethrough, floats in said vessels for operating said screens, an emptying siphon passing through one of the walls of each vessel and an adjustable Weight on the opposite wall of the vessel for retilting the vessel after emptying.

' 2. A measuring apparatus comprising in combination independently tiltable vessels, a tiltable supply or fillin spout o erated by said vessels to alternate y shut 01 1 and supply liquid thereto, a spout, throttling means for said pipe retarding the passage of liquid therethrough, floats in said vessels for operating said throttling means, an emptyin siphon passing through one of the walls 0% each vessel and an adjustable weight on the opposite wall of the vessel for retiltingthe vessel after emptying.

3. A measuring apparatus comprising tilt-. able measuring vessels, a tiltable supply or filling spout operated by, said vessels to alternatel shut off and su ply liquid thereto, a supp y pipe for said spout, throttling means for said pipe retardln the passage of liquid therethrough, floats 1n said vessels for operating said throttling means, an emptying s'phon passing through one of the Wu ls of eac vessel, an adjustable weight on the opposite wall 0 the vessel for retiltingthe vessel after emptying, said vessels composed of a materialof a given eoeflicientof expansion, and a compensating pipe for said vessels composed of a material having a relatively greater coeflicientof expansion than the material of which the vessels are composed, said com nsating pi e projecting from the wall 0 the vessels earing the weight for retilting the vessels after emptymg.

supply pipe for'said 4. A measuring ap aratus comprising tiltable measuring vesse s, a tiltable su ply or filling spout ogerated by said vesse s to alternately shut o and supply liquid thereto, a su ply pipe for said spout, throttling means or sand pipe retardingthe passage of liquid therethrough, floats in said vessels for operating said throttli means, an emptying siphon passing throug one of the wa ls'of each vessel, an adjustable wei ht- .on the opposite wall 6f the vessel for 'retllting the vessel after. emptying, said vessels. composed of a material of a given coefficient of expansion, and compensating means for said vessels composed of a material having a relatively greater coefiicient ofexpansion than the material of which the vessels are composed, said compensating means being for operating located at the wall of the vessels bearing the weight for retilting the vessels after emptying. 5. A measuring apparatus comprisin tiltable measuring vessels, a tiltable supp y or filling spout operated by said vessels to al ternatel shut off and su ply liquid thereto, a supp y pipe for sai means for said pipe retar ng the passage of liquid therethrough, floats in said vessels said throttling means, an em tying siphon passing through one of the wa ls of each vessel, an adjustable weight on the opposite Wall of the vessel for retilting the vessel after em tying, said vessels composed of a inatei'ial of a given coeflicient of expansion, and compensating means for said vessels composed of a material having a relatively greater coefficient of expansion than the material of which the vessels are composed, and an adjustable weight for said compensating means, said com nsating means being located at the wall the vessels bearing the weight for retilting the vessels after emptying. I

6. A measuring apparatus comprisin in combination independently tiltable vessel s, a supply pipe and means for alternately shutting off and suppl ing liquid to said vessels,

throttling means or said pipe retarding the passage of liquid therethrough, and floats in said vessels for operating said throttling means.

7. A measuring apparatus comprising in combination tiltable vessels, a tiltable supply s to or filling spout o erated by said vesse alternately shut- 0 and supply liquid to said vessels, a supply pi e for said spout, throttling means for sai pipe retarding the passage of liquid therethrough, and floats in said vessels for operating said throttling means. Y

, apout, throttling S. A measuring apparatus comprising a tiltable measuring vessel, a supply pipe and means for alternately shutting off and supof gravity of the vessel by expansion and contraction of the vessel material.

a 10. A measuring apparatus. comprising a tiltable measuring vessel composed of a material of a given coeflicient. of expansion, and

temperature error compensating means for said vessel composed of a material of a relatively greater coeflicient ofexpansion than the material of which the vessel is composed and carried by the vessel on that side of the pivot on which is the lesser weight of vessel material.

11. A measuring apparatus comprising a.

tiltable measuring vessel composed of a material of a given coeflicient of expansion, temperature 'error com ensating means for said vessel composed o a material of a different coeflicient of expansion from the material of which the vessel is composed, an

emptying siphon, and a counter weight for retilting the vessel after emptying.

In witness whereof I have hereunto set my hand this 10th day of September 190$).

WEN-ZEL LEINERT.

Witnesses:

A. WHITE, 0. SAWYER.

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