US157220A - Improvement in metallic sieves - Google Patents
Improvement in metallic sieves Download PDFInfo
- Publication number
- US157220A US157220A US157220DA US157220A US 157220 A US157220 A US 157220A US 157220D A US157220D A US 157220DA US 157220 A US157220 A US 157220A
- Authority
- US
- United States
- Prior art keywords
- cloth
- improvement
- metallic
- wire
- rim
- 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
- 239000004744 fabric Substances 0.000 description 24
- 239000002184 metal Substances 0.000 description 6
- 229910001369 Brass Inorganic materials 0.000 description 4
- 239000010951 brass Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000005028 tinplate Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/48—Stretching devices for screens
Definitions
- the object of my invention is to produce a more accurate and durable connection between the wire-cloth and the rim or body of a me-- tallic sieve, by constructing and uniting the different parts together substantially as hereinafter described with reference to the accompanying drawings, in which Figure l is a perspective view of a metallic sieve embodying my invention, and Fig. 2 an enlarged section cut vertically through one side of Fig. 1.
- the rim A consists of sheet metal formed up to flare outward like the rim of a bakepan, wired at its upper edge, and a narrow flange, 0/, turned inward horizontally along its bottom edge.
- the wire-cloth B is then ap plied to the under side of said flange a, drawn tightly downward upon the same, and stuck fast by a little solder applied at a sufficient number of places along the same to hold the cloth B in place and allow the projecting edges of the same to be turned closely down around and against the outer side of the lower part of the rim A.
- a flanged ring of sheet metal, 0, is then fitted and pressed downward around the bent-down portion of the wire-cloth B until its inwardprojecting flange is brought into close contact with the wire-cloth B, which rests on the flange a of A, and the outward edge of said ringO is soldered fast at its edges to the wirecloth and the rim A, and, finally, the projecting edges of the wire-cloth are cut off near the covering edge of the said ring (3, as shown in the same figure.
- a cylindrical foot-band, D is then wired and fitted closely around over the surrounding edges of the Wire-cloth and ring 0, and soldered fast around the rim A, so as to cover the outside edges of said cloth and ring, and also afford a foot-ring'for the sieve to rest upon, as represented in Fig. 1.
- the inner flange a is intended to be pressed down closely upon the wire-cloth, and the flange of the ring 0 also pressed closely against the opposite side of said cloth. (See Fig. 2.)
- Tin-plate is the sheet metal intended to be used in the manufacture of these sieves; but thin sheet-brass and brass wire-cloth can be used instead, if desired.
- I claim as my invention A metallic sieve consisting of the rim A, Wire-cloth B, flanged ring 0, and foot D, the said parts being constructed, arranged, and secured together substantially as described.
Landscapes
- Combined Means For Separation Of Solids (AREA)
Description
c. a. roman.
Metallic-sieves.
Patented Nov. 24,1874.
nve nZo? 1 I I flvlo o rfi. W
UNITED STATES PATENT QFFICE.
CHRISTOPHER B. PORTER, OF PHILADELPH IA, PENNSYLVANIA.
IMPROVEMENT IN METALLIC SlEVES.
Specification forming part of Letters Patent No. 157,220, dated November 24, 1874; application filed October 29, 1874.
To all whom it may concern:
Be it known that I, CHRISTOPHER B. Pon- TER, of the city of Philadelphia, in the State of Pennsylvania, have invented an Improvement in Metallic Sieves, of which the following is a specification:
The object of my invention is to produce a more accurate and durable connection between the wire-cloth and the rim or body of a me-- tallic sieve, by constructing and uniting the different parts together substantially as hereinafter described with reference to the accompanying drawings, in which Figure l is a perspective view of a metallic sieve embodying my invention, and Fig. 2 an enlarged section cut vertically through one side of Fig. 1.
The rim A consists of sheet metal formed up to flare outward like the rim of a bakepan, wired at its upper edge, and a narrow flange, 0/, turned inward horizontally along its bottom edge. The wire-cloth B is then ap plied to the under side of said flange a, drawn tightly downward upon the same, and stuck fast by a little solder applied at a sufficient number of places along the same to hold the cloth B in place and allow the projecting edges of the same to be turned closely down around and against the outer side of the lower part of the rim A. (See Fig. 2.) A flanged ring of sheet metal, 0, is then fitted and pressed downward around the bent-down portion of the wire-cloth B until its inwardprojecting flange is brought into close contact with the wire-cloth B, which rests on the flange a of A, and the outward edge of said ringO is soldered fast at its edges to the wirecloth and the rim A, and, finally, the projecting edges of the wire-cloth are cut off near the covering edge of the said ring (3, as shown in the same figure. A cylindrical foot-band, D, is then wired and fitted closely around over the surrounding edges of the Wire-cloth and ring 0, and soldered fast around the rim A, so as to cover the outside edges of said cloth and ring, and also afford a foot-ring'for the sieve to rest upon, as represented in Fig. 1. The inner flange a is intended to be pressed down closely upon the wire-cloth, and the flange of the ring 0 also pressed closely against the opposite side of said cloth. (See Fig. 2.)
Tin-plate is the sheet metal intended to be used in the manufacture of these sieves; but thin sheet-brass and brass wire-cloth can be used instead, if desired.
It will be readily understood that a metallic sieve constructed .as described will be very strong, durable, and easily kept clean, and that the cost of constructing the same over the ordinary metallic sieves in use will be but little if any more.
I claim as my invention A metallic sieve consisting of the rim A, Wire-cloth B, flanged ring 0, and foot D, the said parts being constructed, arranged, and secured together substantially as described.
CHRISTOPHER B. PORTER.
Witnesses:
BENJ. MoRIsoN, WM. H. MoRIsoN.
Publications (1)
Publication Number | Publication Date |
---|---|
US157220A true US157220A (en) | 1874-11-24 |
Family
ID=2226630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US157220D Expired - Lifetime US157220A (en) | Improvement in metallic sieves |
Country Status (1)
Country | Link |
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US (1) | US157220A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2576794A (en) * | 1948-07-19 | 1951-11-27 | William R Jost | Demountable tray sieve |
-
0
- US US157220D patent/US157220A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2576794A (en) * | 1948-07-19 | 1951-11-27 | William R Jost | Demountable tray sieve |
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