US101125A - Improvement in liquid meters - Google Patents

Description

din-m11 States aient @twine Letters Patent No. 101,125, dated March 22,1870 5 antedatecl March. 15,1870.

IMPROVEMENT IN LIQUID METERS.

The Schedule referred to in these Letters Patent and making pa: of the same.

To all whom 'it may concern Be it known that I, THOMAS C. HAnenAvn, of Boston, in the county of Suolk and State ot' Massachusetts, have invented an Improved Apparatus for Measuring the Flow of Liquids, &c., ot' which the following is a full, clear, and exact description, reference .being had to the accompanying drawings making part of this specification, in which- Figure 1 is a perspective view of my improved apparatus, the Vfront plate being removed, to show the interior. l

Figure 2 is a longitudinal vert-ical section through the center of the apparatus.

Figure 3 is 'a perspectivev view of theY oscillating pan.

Figure 4 is a transverse section through the center of the apparatus.

My invention has for its object to dispense with the use of valves in apparat-us for measuring the tlow of liquids, and .thereby not Vonly greatly simplify their construction, increase their durability, and reduce the cost of manufacture, but also entirely avoid leakage, thus rendering them `more accurate and reliable 'than heretofore; and.

My invention consists in an oscillating pan or receptacle of peculiar form, which is accurately balanced upon adjustable points Orcenters within a suitable casing provided with inlet and outlet-openings, the pan being divded,by a central partition, into two measuring-chambers of equal capacity, which are alternately brought into a position to receive and ret-ain the desired quantity of liquid, which is discharged from and over the outer ends of the chambers as the latter are alternately carried down by the oscillations of the pan.

To enable others skilled irr the art to understand and use my invention, I will proceed to describe the manner in which I have carried it out.

In the said drawings- A represents the outer casing of the apparatus, which is of the form shown in tig. 1, the front being closed by a removable plate, a, iig. 4, which, when iitted into its place, renders the casing air-tight. y

Within the casing Ajs an oscillating pan, B, of a diamond form in longitudinal section, to the front and rear plates of which are secured blocks b, through which pass the screws c, the lower ends 'of which terminate in points 5, which rest in conical recesses in supporting-blocks d e, attached, the former, (l, to the inside of the rear plate f of the casing A, and the latter, e, to the inner side of a cross-bar, C, which extends across the casing, from one side to the other, as seen in fig. 1, the pan being thus balanced so that it will rock or oscillate freely from side to side without creating any appreciable friction; and, by turning the screws c,.the points 5 may be adjusted so that the distance ofthe oscillating point of the pan B below its centre of gravity may bevaried as desired.

y is a partition-plate which extends across the pau B, and divides it into two compartments or measurv ing-chambers, It i., of equal capacity, which are entirely open at the top, asseen in figs. 1 and 3.

G is the inlet or supply-pipe which passes through the top of the casing A, and is 'flattened at its lower end, so as to form a long narrow discharge-opening, Z, and, when the pan B is in the position seen in iig. 1,

4Athe liquid Hows from the pipe Ginto the chamber h until the weight of the liquid contained therein is suficient to oscillate the pan B, which will then assume the position seen in tig. 2. This movement of the pan brings the chamber t beneath the in1et-pipe G, the contents of the chamber 'lt being, at the same time, discharged from its outer end over the edge fm. into the lower portion of the casing A, which is 'inclined down from both ends toward the outlet-pipe H, through which the liquid passes out of the meter. The pan is again oscillated as soon as a quantity of liquid ot' suii'icient weight has entered the chamber t, this movement bringing the chamber h. beneath the inlet-pipe, and causing the liquid to be discharged from the outer end of the chamber i into the lower portion ot' the casing, and the measuring-chambers are thus alternately tilled and emptied, as required.

The quantity ot' liquid which must enter each chamber in order to oscillate the pan will vary in proportion to the distance ot' the center of oscillation of the pan below its center of gravity, and, by making the center of oscillation adjustable, the amount of liquid allowed to enter each chamber may be regulated with great nicety, as required.

The number oi' oscillations of thepan'B, and, consequently, the. quantity of liquid passing through the meter, may he recorded by means of any of the wellknown contrvances in use for this purpose, and the registering apparatus may be secured, it' desired, to the cross-bar C, and be viewed through a glass plate inserted in the front plate a of the casing A.

It will be seen that, as no valves of any description are employed in myimproved apparatus, its construction is greatly simplified, and the Acost of manufacture proportionately reduced, .while its durability is increased, and the liability of leakage incident to meters provided with valves, which frequently get out of order, is entirely a'v ided, thus causing the apparatus to measure with tie greatest accuracy the quantity of' liquid passing through it, which renders it particularly adapted for measuring spirits, where it is desirable t'o avoid even the smallest percentage of waste.

Instead ot' the pan B being balanced upon points,

as above described, it may be made to oscillateupon axles, knife-edges, or centers, without departing from thespirit of my invention. d

If desired, the pan B may be provided with a connterbalance-yveight, so arranged as to roll or slide freely from one side to the other of a suitable guide-way as the pan oscillates.

Although the above-described apparatusis designed particularly for measuring liquids, yet it might be employed to advantagev for weighing solids of some descriptions-for inst-ance, shot or grain, which could thus be accurately weighed, and delivered into bags in a more convenient and expeditious manner than here-` tofore.

Claims. What I claim as my invention, and desire to secure by Letters Patent, isn The oscillating pa'n B, divided. into compartments or measuring-chambers, h c", so folmed as to allow of their being emptied without the employment .of valves,

in combination with a casing provided with inlet and

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