US2556096A

US2556096A - Pottery drying stove

Info

Publication number: US2556096A
Application number: US794382A
Authority: US
Inventors: Maddock Robert Alexander
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-04-13
Filing date: 1947-12-29
Publication date: 1951-06-05
Anticipated expiration: 1968-06-05

Description

June 5, 1951 R. A. MADDOCK 2,556,096

POTTERY DRYING STOVE Filed Dec. 29, 1947 4 Sheets-Sheet l Inventor fiaasar 6'. Manon/r J1me 1951 R. A. MADDOCK 2,556,096

POTTERY DRYING STOVE Filed Dec. 29, 1947 4 Sheets-Sheet 2 F/GZ Inventor Ross)? 7- n. M90000;

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June 5, 1951 MADDQCK 2,556,096

POTTERY DRYING STOVE Filed Dec. 29, 1947 4 Sheets-Sheet s F/G3. I d

r-: -l=r 1=| -ET 1 -T---u--H--- l EIZZllII I I Z1111: 41L- n 24 5 IIA A 4 23 26 {4g I m T- I l8 Inventor Hangar 0. H9000 Agen/t June 5, 1951 R. A. MADDOCK 2,556,095

' POTTERY DRYING STOVE FiledDec. 29. 1947' 4 Sheets-Sheet 4 I [no nlor I Faber? WexaakfM Agent Patented June 1951 POTTERY DRYING STOVE Robert Alexander Maddock, Trcntham, England Application December 29 In Great Britai 1947, Serial No. 794,382 I! April 13, 1945 Section 1, Public Law 690, August 8, 1946 Patent expires April 13, 1965 4 Claims. 1

This invention relates to pottery drying stoves, and is chiefly although not necessarily exclusively concerned with the drying of articles of hollow ware such as cups.

, The invention is concerned with the type of stove often known as a mangle, in which the articles to be dried are carried by moving shelves or racks through the drying chamber; usually the mangle type of stove is a somewhat tall and narrow chamber having a vertically moving conveyor carrying swinging trays or other suitable supports for the goods. The goods are loaded and unloaded through openings in the lower part of the stove and heat is introduced into the upper part of the stove. The conveyor,

carries the goods up from the loading opening into the upper drying zone of the stove and the dried goods are conveyed downwards past the unloading opening where they are removed. Sometimes a single opening serves for both loading and unloading.

The object of the invention is to facilitate the more efiective drying of the ware in its travel through the stove.

A further object of the invention is to allow ware to be subjected to the direct action of the drying medium during a greater part of its travel through the stove, for example in its ascending or inward travel (away from the point of loading) and also in its descending or outward travel (back to the point of unloading).

A further object of the invention is to provide a stove in which the ware can be more quickly and easily loaded and unloaded by the workers.

A further object is to facilitate the removal of the pieces of ware from the moulds without having to remove the moulds from the stove, so that, for example, pieces such as cups can be sponged and fitted with handles while the now empty moulds continue their travel in the stove back to the point of loading, where they can be removed, re-filled and replaced to be dried again.

Other objects will become apparent from the ensuing description and claims.

This invention consists in a pottery drying stove in which the goods are carried through the stove by means of a swinging tray conveyor or other equivalent moving carrier wherein supports for the goods are provided of such a nature that the said goods are held in an inclined position, the heating or drying means being so arranged that the goods in their travel through the drying zone of the stove are subjected to the direct impingement of heat.

Referring to the drawings which form a part of this specification:

Figures 1, 2 and 3 are respectively a vertical sectional elevation, a side view, and a plan 01 a vertical mangle stove in which the drying medium is hot air.

Figures 4, 5 and 6 are further vertical sectional elevations showing alternative arrangements.

Referring to Figures 1, 2 and 3 a mangle is provided with a loading opening in at one side and anunloading opening II at the opposite side, both near the bottom of the structure. A vertical swinging tray type of conveyor I2 is arranged in the structure, ascending past the loading opening it and descending past the urn loading opening ll. Each swinging tray is in the form of a V-section unit is adapted to receive moults E i and support them firmly in a position inclined at any suitable angle, say for example at about 45 to the vertical. In the stove above the openings air blowing units I5, it are provided having nozzles or louvres IT or any other suitable provision whereby they direct hot air at substantially the same angle as that of the goods as indicated by the arrows, whereby the goods are subjected to di rect impingements of the hot air from the unit it during the initial or ascending portion of their travel and from the unit it during the return or downward portion of their travel. The air blowing units l5, 15 are connected by ducts liia, I 6a, with a duct it through which the hot air is blown by a circulating fan arranged at H3. The air is exhausted from the stove through the duct 2! leading to the other side of the fan 18 by way of a heater arranged at 2!. The conveyor I2 is driven by a chain drive 22 from a reduction gear and motor 23, the driving sprocket 22 being mounted on the same shaft 25 as the top sprockets 25 of the conveyor.

The air blowing units it, l6 may be replaced by radiant dryers or lamps 15b, 16b, Figure 4, for infra-red drying. it

Where height is restricted the stove may have a horizontal drying zone as shown in Figure 5, the conveyor I2 being guided from the vertical to the horizontal direction of travel and supported during the latter by guides 27. The moulds I4 are supported by inclined shelves l3a instead of by V-section units it of Figures 1-4. Figure 6 shows a similar stove incorporating lamps I57), ltb as in Figure 4.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A pottery drying stove for articles of hollow ware comprising a casing having a loading opening and an unloading opening, a conveyor movably mounted within the casing, support devices swinging from said conveyor, each of said support devices being so formed that when a hollow ware article is placed therein it will rest in an inclined position with' respectqto. the

conveyor with its open end facing upwardly and outwardly, heating means arranged within the casing in close proximity to said conveyor, the

longitudinal axis of the heating means being H substantially parallel to the axes of the hollow \vare articles so that the holloW -warearticles--- being dried are subjected to va -direct impinge ment of heat from heating xneanslawhilei-x travelling in their inclined position, the, arrang s, ment being such that the articles can,be'with-'" drawn from their moulds when they travel past the unloading opening, leaving the moulds still,

located in the supports. 7

2. A,. pottery- .drying stove for articles of. hol-i low ware comprising a casing having. a loading;

openingand an unloading ropening, anendless conveyor: movable ,in the casing, support devices swingably supported by said conveyor,

each-of, said support devices being so formed that when amarticleiof hollow ware is placed thereinit will rest in an inclined position with itsuopen. endfacing upwardly and outwardly, heatingimeans .disposedhwithin the casing in close proximity to the conveyor, thelongitudinal axis. of ithesheating ,means being substantially paralleltothe axes of the hollow ware rto-sub-. ject thahollow ware to: a direct impingement of heatduringumovement of the conveyor, and

additional heating means in said casing and so u disposed with respect to theconveyor as to subject the ohollowrware toidireet, impingement of heatlafter passing ,the first mentioned heating 3.}A pottery drying-stove for-articles of hol- 10W. Ware comprising .a casing, a conveyor movable within said casing, support devices swing ably,.,mounted'on said'conveyor and adapted to receive the pottery mould and article, each of said support devices supporting the pottery article, with the open end facing upwardly and outwardly inan inclined manner, and means for discharging .heatedair directly into the. article-1,

thefllo'ngitudinal, axis of the means \fo-rgdischarg 4 ing the, heated air being substantially parallel to the axes of the hollow ware "articles.

4. A pottery goods drying stove comprising a'chamber of tall narrow proportions, a travelling conveyor in said chamber, work supports on said conveyor, said work supports being adapted-"to--hold the -goods at an angle to the verticalirunlofu. thelconveyor, said chamber having' ,=at,=least-.-:one opening to allow for the loading and unloading of goods, at least one casing=-in'- the chamber arranged above said opening,-said-casing being arranged and positioned s0,.as .to be in close proximity to goods carried past it by said conveyor; nozzles on said casing facing towards said conveyor, theulongitudinal axis "of thenozzles being substantially parallel to the axesiof the goods; means for supplying hot air to'said "casing whereby said nozzles will direct the hot, air .inwardly' towards the goods" carriedflby the conveyor, said conveyor being adapted to carry theygoods inclined outwardly towards said nozzles.

ROBERT ALEXANDER MADDOCK'.

REFERENCES LCITED v The following"referencesare of record in the file- -of" this" patent:

UNITED STATES PATENTS o