US140823A - Improvement in grindstones - Google Patents
Improvement in grindstones Download PDFInfo
- Publication number
- US140823A US140823A US140823DA US140823A US 140823 A US140823 A US 140823A US 140823D A US140823D A US 140823DA US 140823 A US140823 A US 140823A
- Authority
- US
- United States
- Prior art keywords
- grindstones
- crank
- green
- improvement
- bushings
- 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
- 239000004575 stone Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B45/00—Means for securing grinding wheels on rotary arbors
Definitions
- Figure 1 represents a side elevation of our grindstonecrank fastening, partly in section; and Fig. 2, a horizontal section of the same on the line 0 c, Fig. 1.
- the object of our invention is to produce a simple, but perfectly true and central, fastening for the cranks of grindstones, for the pur pose of permitting their placing on and detaching at pleasure, economizing thereby in space and freight in shipping.
- the grindstones are put up and shipped with their cases and bottom pieces, their cranks being correctly centered, requiring therefore a great deal of space.
- Our method provides a bushpacked, resulting in less damage to the goods and reduced expenses for freight.
- A represents the grindstone, to the central part of which are connected, in
- two side bushings, B which are provided with teeth a at their inner side, offering thereby a greater surface to the connecting material, and forming a rigid connection therewith.
- the bushings B are centered, so that the stone will run perfectly true.
- One bushing, B has a threaded aperture, b, for the insertion of the screw d, which connects the crank-flange to it.
- Crank 0 is provided at its shaft with a flange projection, D, having a recess or aperture, 6, corresponding to that of the bushing B.
- crank shaft By placing the crank shaft through the bushings and inserting the screw 11, the crank is firmly connected to the stone A, and all the conditions of a good grindstone retained.
- the stones, cranks, cases, &c. may therefore be shipped separately, as their connection in this manner will always secure a true and per- .fect stone.
- crank 0 having flange D with recess 0, to insert screws 01 and connect the crank with the bushings, as described.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
UNITED STATES PATENT ()FFIGE.
I JAMES F. GREEN AND SIDNEY H. GREEN, OF HAVER-STRAW, NEW YORK.
IMPROVEMENT IN GR INDSTONES.
Specification forming part of Letters Patent No. 140,823, dated July 15, 1873; application filed May 5, 1873.
To all whom it may concern:
Beit known that we, JAMES F. GREEN and SIDNEY H. GREEN, of Haverstraw, in the county'of Rockland and State of New York,
have invented a new and Improved Crank- Fastening for Grindstones, of which the following is a specification:
In the accompanying drawing, Figure 1 represents a side elevation of our grindstonecrank fastening, partly in section; and Fig. 2, a horizontal section of the same on the line 0 c, Fig. 1.
Similar letters of reference indicate corresponding parts.
The object of our invention is to produce a simple, but perfectly true and central, fastening for the cranks of grindstones, for the pur pose of permitting their placing on and detaching at pleasure, economizing thereby in space and freight in shipping. At present the grindstones are put up and shipped with their cases and bottom pieces, their cranks being correctly centered, requiring therefore a great deal of space. Our method provides a bushpacked, resulting in less damage to the goods and reduced expenses for freight.
In the drawing, A represents the grindstone, to the central part of which are connected, in
suitable manner, two side bushings, B, which are provided with teeth a at their inner side, offering thereby a greater surface to the connecting material, and forming a rigid connection therewith. The bushings B are centered, so that the stone will run perfectly true. One bushing, B, has a threaded aperture, b, for the insertion of the screw d, which connects the crank-flange to it. Crank 0 is provided at its shaft with a flange projection, D, having a recess or aperture, 6, corresponding to that of the bushing B.
By placing the crank shaft through the bushings and inserting the screw 11, the crank is firmly connected to the stone A, and all the conditions of a good grindstone retained. The stones, cranks, cases, &c., may therefore be shipped separately, as their connection in this manner will always secure a true and per- .fect stone.
Having thus described our mvention, we claim as new and desire to secure by Letters Patent-- 1. The side bushings B, having projecting teeth a and aperture b, for the purpose described.
2. The crank 0, having flange D with recess 0, to insert screws 01 and connect the crank with the bushings, as described.
JAMES FREDERICK GREEN. SIDNEY H. GREEN. Witnesses:
LEONARD CooPER, THEODORE 00E.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US140823A true US140823A (en) | 1873-07-15 |
Family
ID=2210237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US140823D Expired - Lifetime US140823A (en) | Improvement in grindstones |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US140823A (en) |
-
0
- US US140823D patent/US140823A/en not_active Expired - Lifetime
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