US3103421A - Marchetti - Google Patents
Marchetti Download PDFInfo
- Publication number
- US3103421A US3103421A US3103421DA US3103421A US 3103421 A US3103421 A US 3103421A US 3103421D A US3103421D A US 3103421DA US 3103421 A US3103421 A US 3103421A
- Authority
- US
- United States
- Prior art keywords
- walls
- frame
- air
- product
- dried
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001035 drying Methods 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000002459 sustained Effects 0.000 description 4
- 229940035295 Ting Drugs 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/18—Chambers, containers, receptacles of simple construction mainly open, e.g. dish, tray, pan, rack
Definitions
- the trays consist of a wooden frame with a bottom made of metallic netting or perforated plate through which the drying air passes.
- the product cannot be disposed in relatively high layers on such trays because if its thickness is high, it is diflicult to obtain a uniform resistance to the passage of air. The drying is therefore irregular, resulting in zones which are too dry and zones, which are too humid.
- the object of this invention is to provide a tray which can be loaded with a much greater thickness of product than has been possible with the trays used hitherto. At the same time a very uniform drying effect is obtained.
- the tray according to the invention is characterized by a plurality of inclined parallel walls disposed above the bottomwall supporting the products.
- the bottom wall is made movable for discharging gradually the dried material from each of the cells into which the tray is subdivided by the inclined walls
- FIG. 1 is a longitudinal section through a tray according to the invention.
- FIG. 2 is a plane view thereof.
- FIGS. 3 and 4, 5 and 6, 7 and 8 show corresponding views of three further embodiments of the invention.
- the tray represented in FIGS. 1 and 2 has a wooden rectangular frame 1 and a bottom or bottom wall 2 made of metallic netting. Furthermore, there is a plurality of walls 3 made of a thin material, e.g. aluminium plate. These walls 3 are inclined at about 40 relatively to the bottom wall 2 and their respective ends are held together by two sideboards 4. As a variant, said inclined walls could be fixed directly to the frame 1.
- the product to be dried, e.g. twisted alimentary paste is placed in the cells defined bythe walls 3 and its height is greater than has been hitherto possible. The air is guided by the walls 3 and the drying eifect is very uniform although the quantity of product is much larger.
- the air-permeable bottom wall of the tray is not made of a continuous net ting of metallic wire but consists in a plurality of panels 5 of perfonated aluminium plate, or other similar ma- 3,193,421 Patented Sept. 10, 1963 ice paste may fall in a convenient vessel or onto a conveyor (not represented).
- each member 6 consists of a normally inclined wall and a normally horizontal panel connected to the latters lower edge.
- the frame 1 is provided with a perforated bottom wall 2 which is fixed to it.
- One side of frame 1 is open and the element formed by the walls 3 and the side-boards 4 may be displaced along the bottom wall 2 of the tray.
- the element formed by the walls 3 and the sideboards 4 may be displaced relatively to the frame by effecting different pushes on the two elements or by holding back the frame -1.
- the alimentary pastes may fall because they are no more sustained by the bottom wall 2.
- a movable tray for supponting a product to be dried in an air dryer comprising, in combination: a frame; a bottom in said frame, means for positioning said bot-tom in a first position in a substantially horizontal plane to support in said frame the product to be dried and in a second position in a substantially vertical plane to discharge. the product from said frame; and a plurality of parallel walls disposed above and inclined with respect to said bottom, said bottom and said means for positioning said bottom consisting of a plurality of air permeable panels, one for each of said walls and each pivotally connected to the respective wall, each panel normally assuming by gravity said second position in a substantially vertical plane to discharge the product and is pivoted in said frame by said positioning means into said first position in a substantially horizontal plane to support the product.
Description
Sept. 10, 1963- A. MARCHETTI 3,103,421
CARRYING TRAYS FOR PRODUCTS'TO BE DRIED IN AIR DRYERS Filed Sept. 9, 1958 2 Sheets-Sheet 1 INVENTOR 41190312 JWWMP/f/ I WQJM ATTORNEY Sept. 10, 1963 A. MARCHETTI CARRYING TRAYS FOR PRODUCTS TO BEDRIED IN AIR DRYERS 2 Sheet -Sheet 2 Filed Sept. 9, 1958 Fig 6.
iiilllll! INVENTOR Marcie/19' Qjzz ATTORNEY United States Patent 3,103,421 CARRYLJG TRAYS FGR lRODUCTS TO BE DRIED IN AIR DRYERS I Augusto Marchetti, Milan, Italy, 'assignor to Gebruder Buhler, Uzwil, Switzerland, a firm of Switzerland Filed Sept. 9, 1958, ger. No. 759,932
Claims priority, application ltaly Sept. 12, 1957 1 Claim. (Cl. 34-238) In certain dryers using warm blown air, the products to be dried are carried on moving trays and the air is blown through the products for absorbing the humidity contained therein.
Usually, the trays consist of a wooden frame with a bottom made of metallic netting or perforated plate through which the drying air passes.
The product cannot be disposed in relatively high layers on such trays because if its thickness is high, it is diflicult to obtain a uniform resistance to the passage of air. The drying is therefore irregular, resulting in zones which are too dry and zones, which are too humid.
The object of this invention is to provide a tray which can be loaded with a much greater thickness of product than has been possible with the trays used hitherto. At the same time a very uniform drying effect is obtained.
The tray according to the invention is characterized by a plurality of inclined parallel walls disposed above the bottomwall supporting the products.
In a further embodiment of the invention, the bottom wall is made movable for discharging gradually the dried material from each of the cells into which the tray is subdivided by the inclined walls[ The drawings show several embodiments of the invention:
FIG. 1 is a longitudinal section through a tray according to the invention.
FIG. 2 is a plane view thereof.
FIGS. 3 and 4, 5 and 6, 7 and 8 show corresponding views of three further embodiments of the invention.
The tray represented in FIGS. 1 and 2 has a wooden rectangular frame 1 and a bottom or bottom wall 2 made of metallic netting. Furthermore, there is a plurality of walls 3 made of a thin material, e.g. aluminium plate. These walls 3 are inclined at about 40 relatively to the bottom wall 2 and their respective ends are held together by two sideboards 4. As a variant, said inclined walls could be fixed directly to the frame 1. The product to be dried, e.g. twisted alimentary paste is placed in the cells defined bythe walls 3 and its height is greater than has been hitherto possible. The air is guided by the walls 3 and the drying eifect is very uniform although the quantity of product is much larger.
In the embodiment of FIGS. 3 and 4 the air-permeable bottom wall of the tray is not made of a continuous net ting of metallic wire but consists in a plurality of panels 5 of perfonated aluminium plate, or other similar ma- 3,193,421 Patented Sept. 10, 1963 ice paste may fall in a convenient vessel or onto a conveyor (not represented).
In the embodiment of FIGS. 5 and 6, the walls 3 and the panels 5 are replaced by bent walls 6 which. are pivotably mounted on the sideboards 4. As soon as these walls 6 are no more sustained by the guides they are pivoted by gravity into the position 6' represented in dotted lines and the dried alimentary paste may fall. Each member 6 consists of a normally inclined wall and a normally horizontal panel connected to the latters lower edge.
In the embodiment of FIGS. 7 and 8 the frame 1 is provided with a perforated bottom wall 2 which is fixed to it. One side of frame 1 is open and the element formed by the walls 3 and the side-boards 4 may be displaced along the bottom wall 2 of the tray. On leaving the dryer, the element formed by the walls 3 and the sideboards 4 may be displaced relatively to the frame by effecting different pushes on the two elements or by holding back the frame -1. The alimentary pastes may fall because they are no more sustained by the bottom wall 2.
I claim:
A movable tray for supponting a product to be dried in an air dryer comprising, in combination: a frame; a bottom in said frame, means for positioning said bot-tom in a first position in a substantially horizontal plane to support in said frame the product to be dried and in a second position in a substantially vertical plane to discharge. the product from said frame; and a plurality of parallel walls disposed above and inclined with respect to said bottom, said bottom and said means for positioning said bottom consisting of a plurality of air permeable panels, one for each of said walls and each pivotally connected to the respective wall, each panel normally assuming by gravity said second position in a substantially vertical plane to discharge the product and is pivoted in said frame by said positioning means into said first position in a substantially horizontal plane to support the product. 1
References Cited in the file of this patent UNITED STATES PATENTS 1,149,948 Rand Aug. 10, 1915 1,284,218 Benjamin Nov. 12, 1918 FOREIGN PATENTS 48 l,l17 Germany Aug. 14, 1929
Publications (1)
Publication Number | Publication Date |
---|---|
US3103421A true US3103421A (en) | 1963-09-10 |
Family
ID=3451810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US3103421D Expired - Lifetime US3103421A (en) | Marchetti |
Country Status (1)
Country | Link |
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US (1) | US3103421A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3222051A (en) * | 1962-11-30 | 1965-12-07 | Elmer F Blanchard | Vacuum copy holder |
US3346967A (en) * | 1964-10-20 | 1967-10-17 | Makinen Alpo Eino | Shelf construction for a multistage dryer for bodies in plate or sheet form |
EP2138789A1 (en) * | 2008-06-26 | 2009-12-30 | Imerys TC | Device for drying a ceramic product, in particular made from clay |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1149948A (en) * | 1915-03-19 | 1915-08-10 | Silas J Rand | Drying apparatus. |
US1284218A (en) * | 1918-11-12 | George Hillard Benjamin | Method of and apparatus for dehydrating vegetable and other substances. | |
DE481117C (en) * | 1929-08-14 | G A Schuetz Fa | Drying rack for damp substances, e.g. B. filter press cake |
-
0
- US US3103421D patent/US3103421A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1284218A (en) * | 1918-11-12 | George Hillard Benjamin | Method of and apparatus for dehydrating vegetable and other substances. | |
DE481117C (en) * | 1929-08-14 | G A Schuetz Fa | Drying rack for damp substances, e.g. B. filter press cake | |
US1149948A (en) * | 1915-03-19 | 1915-08-10 | Silas J Rand | Drying apparatus. |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3222051A (en) * | 1962-11-30 | 1965-12-07 | Elmer F Blanchard | Vacuum copy holder |
US3346967A (en) * | 1964-10-20 | 1967-10-17 | Makinen Alpo Eino | Shelf construction for a multistage dryer for bodies in plate or sheet form |
EP2138789A1 (en) * | 2008-06-26 | 2009-12-30 | Imerys TC | Device for drying a ceramic product, in particular made from clay |
FR2933174A1 (en) * | 2008-06-26 | 2010-01-01 | Imerys Tc | DEVICE FOR DRYING A CERAMIC PRODUCT, IN PARTICULAR CLAY |
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