US953576A - Agitator for refrigerating liquids. - Google Patents

Description

Ai EL BAER. AGITATOR Folie, R

EFRIGERATNG LIQUIDE.

APPLICATIGE FILE?) J1\ N.2'. 1905.

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l iii rf iiiiiiiiiiiIiiiii iiiiiiiiiiii IL'LVN H. BAER, OF WAYN-ESBORO, PENNSYLVANIA, uASSEGNR TG FRCK CGMPANY, GF TNAYNESBORG, EENNSYLUANIA, A CQEJPRATIN.

AGITATR FOR REFRIGERATING LIQUDS.

essere.

To all whom it 'may concern.'

33e it known that ALVIN H. BAER, a citizen of the United States, residing at Waynesboro, in the county of Franklin and State of Pennsylvania, have invented certain new and useful improvements in Agitators for Refrigerating Liquids, of which the following is a specification.

In the operation of ice makin@ or refrigerating plants, the e'liiciency oi' the apparatus is materially increased by the thorough, uniform and continuous agitation of the refrigerating liquids, which result in maintaining a substantially uniform temperatureof said liquid in all parts of the tank containing the same, whereas, without such agitation, the Variation in the temperature between the top of the tank, where it is the highest and the bottom of the tank where it is the lowest, is considerable.

The object of my said invention is therefore, to provide an improved construction of agitator for tanks containing such liquids, whereby the desired result may be secured and without undue increase in the cost of the apparatus, all as will be hereinafter more fully described and claimed.

Referring to the accompanying drawings which are made a part hereof and on which similar reference characters indicate similar parts, Figure 1 is a longitudinal vertical section through the freezing tank, or the tank containing the refrigerating liquid of the ice makin` or refrigerating plant, as seen when loo ring in the direction indicated by the arrows from the dotted line 1 1 in FiO. 2, the agitator being shown in elevation, and the central portion of the tank being broken out in order that it may be shown on a larger scale. Fig. 2 a horizontal section as seen when looking in the direction indicated by the arrows from the dotted line 2 2 in Fig.v 1, the tank being broken away on one side as well as in the center, to enable the apparatus to be shown on a larger scale, and the agitator pipes being also shown in elevation for the greater portion of their length within the tank. Fig. 8 a view in general similar to Fi 2, but showing the entire width of the tan which is of a modified construction, and also show- Speeication or" Letters Patent.

Application filed January 27, 19'35.

Fateii'ted Mar. 2%, il.

Serial No. 242,374;

ing a modified arrangement of the agitator, and Fig. l a detail cross section looking in the direction indicated by the arrow from the dotted line 1 /l in Fig. 2.

in said drawings the portions marked ifi represent the tank proper, and B the shell. or casing of the agitator. lThe tank i is, as shown, built of metal plates and angle bars riveted together, which is a suitable construction, but it may be any suitable tank for the purpose. The agitator easing B is a casting of the form shown, adapted to be secured by a water tight joint within an aperture in one end of the tank, suitable ilanges being provided for riveting and securing the parts together, as shown. It is oblong in cross-section, as shown in Fig. t, and has a central partition Z) semi-circular in cross-section as indicated in Fig. el., on one side of which is an inlet passage 5 and on the other' side of which is the cylindrical agitating chamber (i, terminating in a discharge outlet 7. Said partition Z) extends from the inner end of casing B toward its outer end leaving an opening from inlet passage 5 to chamber' 6 beyond its outer end, as shown, it being of sufficient length to form the short cylinder 6, within which the agitator blades may operate. Connected with the outer end of the inlet 5, which is horizontal and turned to extend parallel with the end of the tank, is an inletmain S having a number of vertical inlet pipes 9 connected therewith at intervals across its top. Said inlet pipes 9 are open and the outer end of the main S is closed. The discharge outlet T extends'in a direction parallel with the side of the tank and a discharge main l() connected thereto and extends lengthwise of the tank to its opposite end where it is connected by a rightangle elbow 11 with another pipe 12, which extends at right angles with pipe 10 across the end of the tank opposite to the end containing the inlet main S. A series of small outlet pipes 13 extend downwardly from the under side of said pipe 12 to near the bottom of the tank, their inner ends being opened and the outer end of pipe 12 being closed.

The agitator proper consists of a shaft- 15 v YL' ene o i a .der t3 and aty its outer end in a in the i .I 1 oi the the casing l centrally i propeller blades 19 are on said shaft within the cylinder being arranged at a suitable distance 'troni each other.

:n operation, the apparatus being constructed as shown in 1 and 2, and the tank filled with the retrigerating liquid. said liquid flows through the pipes 9 into niain S and tills the agitator casing and pipes. Shaft i being started in inotion. as indicated by the arrow. the liquid within the cylinder is driven through the outlety T and niain 10 into the inaiii 1Q where it is discharged through the pipes 13 toward and nea the hottoni ot the tank. The liquid contained in the cylinder being thus forced out. the liquid troni the upper portion of the tank is drawn in through pipes S) and niain S, thus creating a circulation ti'oin the top to the bottoni oit thc tank and itroin one end ot the tank to the other. The liquid discharged through the pipes l?) coininingles with the coldest liquid in the ank, which is always at the bottoni, and the warnier liquid is drawn in continuously troni the top. thus creating a coi tant circulation and niainta'ning a substantially even teinperature in all parts oit the tank with the consequent inaterial ai vanta n the construction shown in Fig. 3 the operation substantially the saine in effect but the torni of the tank is somewhat nioditied. :t h: f. central longitudinal partition Q0 extending nearly to the end ot the tank opposite that to which the agitator is attached but leaving' a passage way 21 between the end ot said partition and the end ot said tank. The inlet pipe extends through said partit-ion 20, an opening being' pi'ovided therefor) which niay be packed to t'orin a close joint. Said iiilet pipe. the agitator casing and the agitator are ot the saine construction and ari'a geinent as described tor the Arincipal views. rlie outlet however is connect d by a short pipe 22 with an outlet inain Q3 exteinllig across the conipartinent of the ank yithin which the liquid is disaty the saine end ot the tank which t charged cains the inlet lipc. rEhe vertical inlet pipes and outletI pipes ot the respective inains are arranged as described for the principal views. n ope 'ation the liquid is t'orcet down vardly into the bottoni of the taiily en ne side ot the partition and drawn in trein the top ot the tai f `n the opposite side et the partition it saine end of the tank, the result being' that J i1| o the i the .liquid Hows around the end of partition 20 through the 21 inaking a siniilar circulation ot l troni ine cnd ot the tank to the f iii:V other and troni its top to its bottoni, and resulting in the saine character of agitation a; when the principal coiisti'iictioii is used.

t obvious that other inodilications in itorni and ar "angeinent inay be devised without departing troni iny invention.

Having thus t'ully described niy said invention. what claiin as nevv and desire to secure by Letters Patent, is

1. The coinbination, with a retrigerating tank. oic an agitator' connected therewith, having an inlet coinprising a pipe extending into the tank and having inlet openings near the top ot said tank and an outlet coinprising a pipe leading to within said tank and having discharge openings near the bottoni ot said tank. said inlet being` thus arranged to take the liquid troni neai' the top of the tank and said outlet to discharge the liquid toward and near the bottoni of the tank, and a propeller within the agitator casing adapted to keep said liquid in circulation, substantially as set forth.

Q. The conibination, with a ret'rige'ating tank, otl an agitator' comprising a casing attached to said tank and having an inlet pipe extending to within said tank and arranged to take the liquid t'i'oin the upper portion of said tank at one end and an outlet pipe extending to the opposite end of said tank and having downwardly extending branches arranged to discharge said liquid into the lower portion ot said tank, and a propeller within said casing adapted to keep said liquid in circulation, substantially as setl torth.

23. The coinbination, with a refrigerating tank. ot' an agitator therefor coinpi'ising a i sing attached to one end of said tank, and toi'ined with an inlet eoininunicating with a niain ex'ending across a portion ot one end otl said tank having a series ot upwardly projecting inlet pipes and an outlet extending to the opposite end Ot said tank and coinniunicating with a transverse inain having a series ot downwardly projecting outict pipes, said casing containing a cylindrical portion. a screw propeller inounted within said portion, ineans for driving said proieller. and said ineans. substantially as set orth.

il. in a i'et'rigeratiiig tank. the eoinbination ot the agitator coinprising a casing attached to said tank and having' an inlet and an outlet coininunicating therewith, the inlet consisting of a inain extending across one end ot said tank with a series or" pipes eX- teiiding' upwardly troni its top ant the outlet consisting et inain extending to the opposite end ot said tank and connected with a transverse pipe extending across said Opposte end, said transverse pipe being provided with a, Series of downwardly projeoting pipes7 a propeller mounted Within Said casing, and means for driving said propeller, Substantially as set forth.

In Witness whereof, I have hereunto set my hand and Seal at Vaynesboro, Pennsyl- Vania, this 21st day of Jaa'1uar \,'f, A. E.

teen

ltnesses:

`W. H. MANNS, H. l). FRICK.

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