US177032A - Improvement in fruit-driers - Google Patents

Description

o. F. TIFFANY.

FRUIT-BRIEF..

Patented May 2,1876.

Vit messes MM f fm Y nventor mam/@ZU f@ .y @l @ZZ/J www NJE'ERS, PHOTO-LITHOGRAFHEH. WASHINGTONV D C.

"UNITED 4S'IArns OSCAR TIFFANY, OF SAN FRANCISCO," CALIFORNIA.

IMPRQVEMNT IN FRUIT-Damas.

Speclcation forming part of Letters Patent No 177,032, dated May 2, 1876; application filed Aprn 3, 1816. y

To all 'whom it may concern: i' i Beit known that I, OSCAR F. TIFFANY, of

thecity and" county of San Francisco, Stateof California, have invented certain new and use-` ful Improvements in Fruit-Driers; and ,I do

hereby declare-that the followingdescription and accompanying drawings are sufficient to enable 'any person skilled .in the art or science to which it most nearly appertains to make Y gallel chambers or drying-passages, arranged onev above the other, communicating through hatchways, and provided with elevators, and

a furnace -located'below the lowest chamber, and a draftstack above the upper chamber, as hereinafter more fully described and claimed.

- It also lconsists in V-'shaped roofs or ceilings of the drying-chamber, combined with gutters arranged immediately beneath them, 'and com- .municating with other gutters, for carrying off the water of condensation to the'outside of the chambers. v

Figure lis a vertical longitudinal section of my fruit-'drier'. Fig. 2 is a transverse section. Fig. 3 is a transverse section through the hotair chamber, exposing the furnace.

-Referring by letter to the drawing, let A represent the heating-furnace, surrounded byl a hot-air chamber, l, formed by a casin g, l0, and havingan outlet, 2, and a damper, b, for regulating the dow of hot air into the passage C. A cool-air passage, d, is located directly above this furnace, and leads from the exterior to the passage C,"and is provided with a damper, e, for regulatin g the dow of air, which, in passing over the furnace, is somewhat heated .beforemingling with the highly-heated air in the passage C. The slide f is used for closing the outer end of the flue d, when desirable.

This construction of air-dues has great advantages, iuv saving fuel, and a perfect regulation in temperature. The cool air, inpassing through d, becomes .heated to 'a desirable degree from the caloric of the same furnace that furnishes theintensely-hot air, and, passing over the diaphragm @absorbs someof the heat from the current in passage 2, so that the two currents approach a mean temperature as they approach the end ofthe diaphragm, wherel they mingle. lThe-flue d insulates the furnace froln the machine above it, and obviates danger from re by direct con tact.

Theupper casing g is provided with twol or.. I

more parallel drying-chambers, h h h, arranged one above the other, and having communicating hatchways at their yalternate ends, so that they will communicate with each other and with airpassage C by means of a' damper, 3. The upper chamber is provided with a stack or exit-flue, 4. The frames which convey the fruit through the chambers consist ot' several perforated metallic -plates or shelves, l, supported 'upon a truck-frame by the corner-posts m, and arranged so thatthc lower-shelves maybe slid from under the upper, for convenience in loading and unloading thecar. These cars are passed into the lower drying-chamber through a door, n, at the end opposite the furnace, and set upon tlr'e tracks o, which are laidl upon the several doors-,of the drying-chambers, so that the cars will be easily moved along as others are passed in. t

The temperature of the air within the dryingehamber lessens as' the distance from the furnace increases; and for the purpose of shifting the loaded trucks, so that the requisite dcgree of temperature and moisture may be obtained, I provide an elevator, p, at each end of the passage, which is arranged to work vthrough the hatchways z', `and be operated by ropes and pulley-'wheels, or other suitable means, from theoutside of the drier. Thesey elevators are provided with short tracks, corresponding with the tracks of the dryingchambers, so that when the, elevators are raised or lowered to a level with either floor the trucks may be withdrawn and elevated to the next upper passage, while the cars are moved forward on themain tracks.

Movable. hatches R R close, or partially' close, the hatchways t' i, as desired, in order to regulate the amount off-heated airk to be admitted to the chambers. t Y

In order.to carry off the water which arises from the condensation of the saturated atmos- PAfrmv'I FFICE which lead through. the l' the casing.

Ielaiinas new, and

W `nry fire-box Iam enabled to nialreianintense t f heatto eifeet'a slight draftthrough the dr'iergf i `or a heavy draft through thedrier reil'ee'ted g i only by a slight heat,` thedraftlthrough the Vre'hox and the draft through the "drier heiifgjgj "entirelyindependent ot each other.` Chenin-gs] liirixish air to `the hotair chamber around th lire-box A. An opening, H8, 'controlled 'by edmninnieatesthe outer air to aipipe, 9, lead-fngdireet to the draftof jthefre-box. By this.V

\ ineens none of `the airhfrom the hot-air Cham- `lnrpasses throughtirelire-box;

Having thnsdeseribed myinventiomwhatf Patent,"is

L The `com desire toseere by'Letters; l

` v hination, in a drieryofa fnrnaee or heater, a surrounding hot-air ehambenand? a snleriosedfreshgfiirl ge the tivo latten adapted tofondnt their itents*totheidry` ing-chamber in parallel lines, and `to discharge them together intotheldryingfehamber after n theyare eommingled. i 2. `Thediaphragm"mit,having abovejitthe opening d to the outer air and `damper "e, in eolunhhinationwxyith the i hot-airj` chamber 1` and opening-2, 'lrovidedqvitha danriper,` b1s nb` stantially as deseribed,and fortlie purpose set forth; Qi 3L' "Inafrnitldrier;a`serieslofflorizontal11575` i Y ing-chambers, l1l h" hf", arranged in@ differenti` planes, provided with traeksp `o,` olexatorslp p ,u `andi doors ma', fn i.`, r,` and 1f/, comindni#w leatingfat alternateendsfhyzlneans "ofhateh` Ways ihzlelos'ed hy "`l`o` \tahle "hatehesiRl "ing fenibination withafnrrrae `A," loeated" the lowest ohambeaandadraftstaokla ox the n'nper; chain ber,` asdefSeribed f ately beneath each angleofitheroof;andthe side gutters u, tofoo`nduotqthe water outside

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