US973434A - Ice-making apparatus. - Google Patents

Description

J. B. HOWE. ICE MAKING APPARATUS. APPLIUATION PILBD Do.4,1909.

Patented 9ct. 8, 90.

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J. B, HOWE.

ICE MAKING APPARATUS. APPLIOAHON FILED 920.4,19o9- Patented Oct. 18, 1910.

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irai porlion oi: lille filed Beeernber i To if whom i 'muy remera:

le it known ila l, leen lewin a ei-izen of the U er rein Nashville, in Llie lola 1 Stare of 'Te-nnen: inveneel new and ueeiul im j; .flipper oai; ioni This invention id useful iin:r erenienre in iee ina reinses of ih i; general type wir evo a hariery of Water couru-inni eene une means ier produeing the eireulairu of e. ri-i' rigerant eo eongeal the u'arer in the cane,

The obje-etui) elle invention in an iznprored apl'iaratue in which the inne' neeefseary for the production or" he iee is redueed aboutv s i\f'eiii'.'i'i\'e per eenl.; rile eapaeity el the plant increased; tl' i iee produeedfis ol superior grade; and ihe cosi; oi' iuealiation ie lese than thai; the known eyeeme.

lilinlieiliinene oi Ailie invention are illnetralefzl, hy 'an i of example, in llie aeeoinpanying` drawing'e, \.\f'lierein- Figure l. a longitudinal sectional View of an ajjiparatus in ae 'ordai'iee with lhepre ent in .'entiong 2 a transverse Sectional View thereof; lT l. a top plan View, partly in geel/ion Fig is a detail perspective vien' of a 'areV eoulaining eau, with a mill lirolqen away lo ehow ihe interior ooneruoiion; a a eeniial vertical eeelion of eueh a can; ihie` ligure also ehows, in derail, the reiaien of the can and a oirenlaiiingheader; Fig. (i i5 a detail creer; section of the boiteux portion oil the een, lfigge. i", S and i) are eenlral vertical eeeiional vienne oi aliernaive 'Forum or eene.

Similar friiaraeirrs ol" lelforrnee designate eoireepondingr paris ihronghoui Lhe several vieu/'5,

Referring more parieularly lo Fien. l, 2 and il, ghe iluneral l designates a lianl; in whirl) ln'ine or any oiher ri-vrieeralii'ig mix` lure ie eeniaii'ii, or circulated, and the numeral 2 desi-fname cane wlaieli are aringed al, suitable inervale in lhiA lanl, and which eonlain wah-r 'us he frozen into blocks of ice. i

ilaeh een L ai provided willi an ixderiorly locali-:d arrangement for eondxuzling the refrigera'ing medium ihrozifgrli 'he new ln this manner 'ue lzody nl u'alor ren.` yeeued, ennui(aneously, lo i'l influe/nee of ille rei'iigersui in ine l/ anli and ifo une influence of the refrigerant circulating through ehe eau and hence 1S, at the same time, irozen from the walls of the can inward, and

llrein 1lhe center lo the can outward. The inne of eengelation is thus materially reduced and` the. uniformity and superior grade of the product is assured.

lin *ehe example shown in Figs, l to 5, ihe arrangement for Conducting the refrigeran; through the central portion of the can *s of a loox, as 3, which is .arranged centrally. in each can, being wholly 1neloeed therein, and which has a central verri( l mer Wall of the hex and dividing (the lahgfr into communicating Circulating channels 5 and (l, ihe mixture flowing upwardly in the former and downwardly in the latter. The hex 3 at its upper end is provide@J with an air tulle, ae T, which serves as a vent to prei/'enrI the trapping of air in the upper portion oi' the hex, an action which would retard the circulation of the refrigerant. The box Bali its lower end is provided with a pair of depending` nipples, 'as 8 and 9, which eoinn'iunieaie `with the respective ehannelel 5 and G and project through the liottoin of the eau; The refrigerant is admitted io the box through the nipple i, flowingv upwardly through vthe Channel 5 and downwardly through the channel 3,

-and leavii'igr the boxihioug'h the nipple 9.

o rows, lateral headers, l1, are connected to the manifold l0, eaeh header ll, eiitendingg,` under a row of cans and Supply/nur the refrigerant which flows through the boxes` 3. ihe refrigerant, when it leaves the boxes Si, flows directly into the tank l, thus eaueiirelr a continuous agitation and Circulation ol3 ldie contents ol. the latter. The tank'l jjnovdf-.d with an outlet pipe, as l, which ie suitably eonneeted to the pumping eppa Patna in a manner to complete the eireuia tion syetein. The headers ll are eaeh provided with nipples, as ifi, and with flanges, as l5, eireuinseribing the nipplee. (See F 5.) 'lhe nipples lll project loosely into the nippleel S and the flanges l5 aord seats 'For the latter. By virtue oi' the described rele.; tion of the nipples, the cane may be readily removed and replaced, the eireulaLion of fhe par-ition, as 4, terniinaling` short ofnections of a positive character are dispcnsed with.

To guard against loss of the refrigerant as it enters the box 3 and a consequent waste of power, it is preferred to employ a positive sealing means, shown in detail in Fig. 5, and consisting of a gasket, as 12, which is 'fitted inv a cup-shaped ring, as 13, that is threaded upon the nipple 8, the gasket 12 vbearing against the flange 15.

In order. to center the lcans with relation to the nipples 14, vertically disposed angle iron guides, as 16, are provided (see Fig. 3). The corner portions of the cans conformably ht into these guides, as shown. Consequently, in placing the cans in the tank, the path of their downward movement is determined by the guides and it follows that when. the cans have reached the termination of their downward movement, the nipples 8 surround the nip les 14.

Inv order to strengthen t e structure, the

bottom 2b, of each can, consists of a cast orv malleable iron late, having `a depending circumscribing" ange, as 17, which is riveted or otherwise secured to the sides of the can and having a central opening, receiving the lower portion of the box 3, and bounded by a depending ange, as 18, which is riveted or otherwise secured to the sides and bottom of the box. The bottom of the box 3 likewise consists of a cast or malleable casting 3a, between which and the flange 18 the vertical walls of the box are fitted, as shown in detail in Fig. 6.

In the alternative arrangement shown in Fi 7, the box, instead of having a cenJ tragl partition wall, as 4, has two vertically disposed partition. walls, as 4a, which ter.

minato short of the upper end of the box and divide the same into three communicating circulation channels. The centralchanne, as 5, corresponds Ato the channel 5 in the first arrangement described, in that the brine first enters thereinto through a nipple, as 8, in communication with a header 11 in the manner describedl and flows upwardly. The channels at each side of the boX, as 6, correspond to the channel 6, in that the brine flows downwardly therethrough and leaves the box through nipples, as 9a, the diameters of which are proportioned with respect to the diameter of the nipple 8a. The refrigerant passing through the nipples 9, flows directly into thetank 1 and produces a continuous agitation and circulation of the contents of the latter.

In the arrangement shown in Fig. 8, the box 3 is not employed. In lieu thereof, I employ a centrally located vertical open ended pipe, as 19, 1n communication, in the manner described, with aA header 11, and having attached to its up 'ef-end a flexible hose section, as 20. Y'Ihe lsection 2O hangs goose-neck fashion, over a side wall of the can and discharges the refrigerant which 'as a nipple. In this figure I have shown a slight variation in the circulating system, which consists in employing a return manifold, as 22, (shown in dotted lines) which is suitably connected to the pump, and lateral headers, as 23, which project from the manifold 22 under the several rows of cans, in parallelism with the headers 11. The headers 23 are related to the outletl ends of the several coils in the same manner that the headers 22 are related to the inlet ends thereof.

In all of the forms described, after the treatment in the freezing tank, the cans are transferred to a thawing tank, similar in all respects to the freezing tank, except perhaps, that it may be of smaller capacity, and hot water is circulated ,through the arrangements within the cans and'through the tank in the same manner that brine was circulated in. the freezing operation, to thaw the iceY sufficiently to provide for its ready removal in block form, from 'the can without clinging to the walls thereof or to the inclosed box,

pipe, coil, or other interior conducting arrangement.

The improved apparatus herein described has, in actual practice, been found to accomplish. all that is herein claimed. Not only is the initial cost of installation Inaterially reduced but the cost of the plant as a whole is lessened since materiali. less floor space, per ton of ice, is require than in the standard arrangements, owing to the fact that the arrangement provides for an efficient product in cans of greater' capacity, and hence of smaller number, per ton bat- `tery. The cost of the tanks is proportionately reduced. Moreover, in the use of the standard systems, the central portions of the I ice cakes are reticulated with air cells. In the use of the present system, the trapped air is not confined in the heart of the cake but is evenly distributed therethrough. A superior product of uniform grade 1s thus produced.

Having fully described my invention, I claim:

-1. In an ice making apparatus, a tank, a plurality of water containing cansv disposed therein, refrigerant conducting means withdischarging into the tank.

2. In` an ice making apparatus, 4a tank, a brine circulating header extending across the bottom thereof, a plurality of freezing cans' arranged in the tank, each can having a.

closed bottom and having an interior brine conducting means, the inlet and outlet of which extends through said bottom, the inlets of the brine 'conducting means having operative association with the header but being without positive attachment thereto.

3. In an ice making apparatus, a freezing can comprising vertical sheet metal walls, a cast iron bottom tted within the walls at their lower ends and positively attached thereto, and a brine conducting means disposed within the walls, carried by said bottom and having an inlet which extends through said bottom.

4. In an ice making apparatus, a tank, a brine conducting header extend'lg across the bottom of the tank, a plurality of freezing cans removably supported in the tank, and a brine circulating means within each can and provided with an inlet connection which is detachably and operatively associated with the header.

In testimony whereof l have hereunto set my hand in vpresence of two subscribing witnesses.

JOHN B. HowE.

Witnesses:

CHAs. S. HYER, J oHN S. POWERS.

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