US448762A - Ore-screen - Google Patents
Ore-screen Download PDFInfo
- Publication number
- US448762A US448762A US448762DA US448762A US 448762 A US448762 A US 448762A US 448762D A US448762D A US 448762DA US 448762 A US448762 A US 448762A
- Authority
- US
- United States
- Prior art keywords
- screen
- ore
- pieces
- grier
- cross
- 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
- 239000000463 material Substances 0.000 description 6
- 210000002832 Shoulder Anatomy 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000002184 metal 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
- Figure 1 is a side elevation of a portion of a stamp-mill, showing the screen in an operative position.
- Fig. 2 is a side elevation of the screen on a larger scale, and
- Fig. 3 is a vertical cross-section of the screen.
- the main frameof the screemwhen intended for use in an ore-stamp is made, as shown in the drawings, of the side pieces A and the top and bot-tom pieces A and A respectively, and the cross-bars A". These parts may be made separately and then fastened in any suitable manner, or the whole frame may be cast in one piece.
- the inner sides of the side pieces A and the end pieces A and A and both sides of the cross-pieces A are formed with the shoulders A upon which and flush with the surface of the frame the small frames 13 are adapted to rest.
- the bolts 0, screw- Serial No. 315,389. (No model.)
- buttons D are adapted to receive the buttons D, which are held in place and adjusted by means of the nuts E.
- the screening material F which is generally perforated sheet metal. as in Fig. 3, but may be wire-cloth', is made in sizes to fit each small compartment formed by the side and end pieces A, A, and A and the cross-pieces A upon the shoulders A' by means of the frames B, held by the bolts, buttons, and nuts C, D, and E, respectively.
- a screen constructed in this manner one section of the cloth when worn out can be removed and a new one inserted without disturbing the main frame or any of the other sections. In this way a great saving is effected when repairs have to be made.
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
(No Model.)
-T. J. GRIER. ORE SCREEN.
No. 448,762. Patented Mar. 24, 1891.
, UNITED STATES THOMAS J'. GRIER, OF LEAD CITY, (DAKOTA TERRITORY) SOUTH DAKOTA.
PATENT OFFICE.
. ORE-SCREEN.
SPECIFICATION forming part of Letters Patent No. 448,762, dated March 24, 1891.
Application filed June 24:, 1889.
T0 ctZZ whom, it may concern.-
Be it known that I, THOMAS J. GRIER, a citizen of' the United States, residing at Lead City, in the county of Lawrence, Territory of Dakota, have invented certain new and useful Improvements in Ore'Soreens, of which the following is a specification, reference be ing had therein to the accompanying drawings.
This invention has relation to an improvem ent in screens, and more particularly to that class of screens used in ore-stamps, the main objects of the invention being to provide a screen which can be easily taken apart for repairs and to effect a saving in the screen material.
Other objects and advantages of the invention will appear in the following description, and the novel feature thereof will be particularly pointed out in the claim.
Referring to the drawings, Figure 1 is a side elevation of a portion of a stamp-mill, showing the screen in an operative position. Fig. 2 is a side elevation of the screen on a larger scale, and Fig. 3 is a vertical cross-section of the screen.
Like letters of reference indicate like parts in all the figures of the drawings.
The main frameof the screemwhen intended for use in an ore-stamp, is made, as shown in the drawings, of the side pieces A and the top and bot-tom pieces A and A respectively, and the cross-bars A". These parts may be made separately and then fastened in any suitable manner, or the whole frame may be cast in one piece. The inner sides of the side pieces A and the end pieces A and A and both sides of the cross-pieces A are formed with the shoulders A upon which and flush with the surface of the frame the small frames 13 are adapted to rest. The bolts 0, screw- Serial No. 315,389. (No model.)
threaded on their ends, are adapted to receive the buttons D, which are held in place and adjusted by means of the nuts E.
The screening material F, which is generally perforated sheet metal. as in Fig. 3, but may be wire-cloth', is made in sizes to fit each small compartment formed by the side and end pieces A, A, and A and the cross-pieces A upon the shoulders A' by means of the frames B, held by the bolts, buttons, and nuts C, D, and E, respectively. In a screen constructed in this manner one section of the cloth when worn out can be removed and a new one inserted without disturbing the main frame or any of the other sections. In this way a great saving is effected when repairs have to be made.
I do not limit myself to the form of screen main frame divided into vertical series of compartments, and independently-removable screens and screen-frames fitting said compartments, whereby any one section of the screening material may be removed independent of the others as it becomes worn,
substantially as described.
In testimony whereof I affix my signature in presence of two witnesses.
THOMAS J. GRIER. \Vitnesses:
WM. A. REMER, FRED E. NELSON.
These sheets F are held firmly in place 50 Ourvilinear compartments and com- 65
Publications (1)
Publication Number | Publication Date |
---|---|
US448762A true US448762A (en) | 1891-03-24 |
Family
ID=2517648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US448762D Expired - Lifetime US448762A (en) | Ore-screen |
Country Status (1)
Country | Link |
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US (1) | US448762A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2487914A (en) * | 1947-07-16 | 1949-11-15 | John P Woolcott | Purifier sieve and mounting means therefor |
US3316545A (en) * | 1964-07-27 | 1967-04-25 | Jess M Reed | Detector for native particles of gold and platinum |
-
0
- US US448762D patent/US448762A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2487914A (en) * | 1947-07-16 | 1949-11-15 | John P Woolcott | Purifier sieve and mounting means therefor |
US3316545A (en) * | 1964-07-27 | 1967-04-25 | Jess M Reed | Detector for native particles of gold and platinum |
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