US132965A - Improvement in flour-bolts - Google Patents
Improvement in flour-bolts Download PDFInfo
- Publication number
- US132965A US132965A US132965DA US132965A US 132965 A US132965 A US 132965A US 132965D A US132965D A US 132965DA US 132965 A US132965 A US 132965A
- Authority
- US
- United States
- Prior art keywords
- cloth
- flour
- improvement
- bolts
- ribs
- 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 9
- 239000000463 material Substances 0.000 description 1
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
- B07B1/18—Drum screens
Definitions
- Figure 1 is a side elevation of a bolt constructed according to my improvement; and Fig. 2 is a transverse section taken on the line as w of Fig. 1.
- A represents the ordinary reel-head B, the longitudinal ribs; and O, the band or hoop at the tail end.
- D represents the aforesaid spiral ribs, which I propose to use for securing the cloth E to. They are arranged upon and attached to the inside of ribs 13, and are placed as wide apart as the width of a strip of cloth. By preference, I will have the pitch of the spiral ribs such that two strips of cloth will cover it, so that two spiral ribs placed exactly opposite will be sufieient; but the pitch may be adapted for three or four strips of cloth, and the reel will have as many spiral ribs.
- the cloth is nailed upon the inside of ribs D, making the reel smooth inside, and the ends of the pieces of cloth are cut diagonally to square with the head and the hoop O, to which they are nailed, the tail end being inside of the hoop and the head ends being nailed to the outside of a circular shoulder, F.
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- Heat Sensitive Colour Forming Recording (AREA)
Description
J. w. JOHNSON.
Improvement in Flour-Bolts.
N0. 132,965. Patented Nov-12,1872.
ai imzsmz I gum r: i I 0 1/ fag UNITED STATES PATENT Orrren.
JOHN W. JOHNSON, OF EVANSPORT, OHIO.
IMPROVEMENT IN FLOUR-BOLTS.
Specificationforming part of Letters Patent No. 132,965, dated November 12,1872.
4 scribed.
Figure 1 is a side elevation of a bolt constructed according to my improvement; and Fig. 2 is a transverse section taken on the line as w of Fig. 1.
Similar letters of reference indicate corresponding parts.
A represents the ordinary reel-head B, the longitudinal ribs; and O, the band or hoop at the tail end. D represents the aforesaid spiral ribs, which I propose to use for securing the cloth E to. They are arranged upon and attached to the inside of ribs 13, and are placed as wide apart as the width of a strip of cloth. By preference, I will have the pitch of the spiral ribs such that two strips of cloth will cover it, so that two spiral ribs placed exactly opposite will be sufieient; but the pitch may be adapted for three or four strips of cloth, and the reel will have as many spiral ribs. The cloth is nailed upon the inside of ribs D, making the reel smooth inside, and the ends of the pieces of cloth are cut diagonally to square with the head and the hoop O, to which they are nailed, the tail end being inside of the hoop and the head ends being nailed to the outside of a circular shoulder, F.
These spiral ribs make a much more rigid reel with a given quantity of material than the common arrangement does, and the strain on the cloth by springing is not so disastrous, because both the warp and weft threads are diagonal to the direction of said strain, whereby the eloth is more elastic and compensating to the strain.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination,in a flour-bolt, of the spiral ribs D and the cloth arranged thereon spirally to the axis of the bolt, the said spiral ribs being within the longitudinal ribs, and the cloth inside of the spiral ribs, all substantially as specified.
JOHN W. JOHNSON. Witnesses:
DAVID WALTER, LEWIS E. BREWSTER,
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US132965A true US132965A (en) | 1872-11-12 |
Family
ID=2202382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US132965D Expired - Lifetime US132965A (en) | Improvement in flour-bolts |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US132965A (en) |
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0
- US US132965D patent/US132965A/en not_active Expired - Lifetime
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