US138976A - Improvement in sieves - Google Patents

Improvement in sieves Download PDF

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Publication number
US138976A
US138976A US138976DA US138976A US 138976 A US138976 A US 138976A US 138976D A US138976D A US 138976DA US 138976 A US138976 A US 138976A
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United States
Prior art keywords
groove
sieves
wire
improvement
cloth
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/48Stretching devices for screens

Definitions

  • Figure 1 of the drawing is a representation of my wire-cloth.
  • Fig. 2 is a sectional view of my sieve.
  • Fig. 3 is an enlarged detail, showing groove.
  • This invention has relation to the construction of sieves having metallic rims; and it consists in the manner of fastening the wirecloth to the rim by soldering the free edge of the wire-cloth within a groove' swaged in the ⁇
  • the letter A lndicates the metallic rim, in which is swaged a groove, b, parallel with its bottom edge.
  • O designates the wire-cloth, cut sufficiently large for its edge to extend within the groove b.
  • the wire-cloth is then fastened in the groove by the application of solder d, which fills the groove and at the same time forms a stout metallic edge to the wire-cloth.
  • the sieve A constructed with groove b to receive the sieve-bottom, the free ends of the wire being secured together and to the vessel by solder, as described and shown.

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  • Structure Of Printed Boards (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Description

UNITED STATES GEORGE WRIGHT, OF SAVANNAH, MISSOURI.
IMPROVEMENT lN SIEVES.
Specification forming part of Letters Patent No. 138,976, dated May 13, 1873; application filed January 11, 187 3. i
To all lwhom it may concern:
Be it known that I, GEORGE WRIGHT, of Savannah,in the county of Andrew and State of Missouri, have invented a new and valuable Improvement in Sieves; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing making a part of this specication and to the letters and figures of reference marked thereon.
Figure 1 of the drawing is a representation of my wire-cloth. Fig. 2 is a sectional view of my sieve. Fig. 3 is an enlarged detail, showing groove.
This invention has relation to the construction of sieves having metallic rims; and it consists in the manner of fastening the wirecloth to the rim by soldering the free edge of the wire-cloth within a groove' swaged in the` In the accompanying drawing, the letter A lndicates the metallic rim, in which is swaged a groove, b, parallel with its bottom edge. O designates the wire-cloth, cut sufficiently large for its edge to extend within the groove b. The wire-cloth is then fastened in the groove by the application of solder d, which fills the groove and at the same time forms a stout metallic edge to the wire-cloth.
An examination of this fastening will show that it is very secure. The groove affords a rm hold to the solder, and this in turn is so intimately looped in and connected with the meshes at the edge of the wire-cloth that it is impossible to separate the two by ordinary use.
What I claim as my invention, and desire to secure by Letters Patent, is-
The sieve A, constructed with groove b to receive the sieve-bottom, the free ends of the wire being secured together and to the vessel by solder, as described and shown.
In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.
GEORGE WRIGHT.
Attest:
N. B. GIDDINGs, J. T. HARDY.
US138976D Improvement in sieves Expired - Lifetime US138976A (en)

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