US181933A - Improvement in card-grinders - Google Patents
Improvement in card-grinders Download PDFInfo
- Publication number
- US181933A US181933A US181933DA US181933A US 181933 A US181933 A US 181933A US 181933D A US181933D A US 181933DA US 181933 A US181933 A US 181933A
- Authority
- US
- United States
- Prior art keywords
- cylinder
- card
- teeth
- grinding
- grinders
- 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
- 229910001651 emery Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002844 continuous effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/12—Cut-off wheels
Definitions
- N.PETER5. PNOTO-LITMOGRAPHER wAsuxNGYon D c UNITED STATES PATENT OFFICE.
- MERRILL A FURBUSH, OF PHILADELPHIA, PENNSYLVANIA.
- the ordinary method of grinding the teeth is to first wrap a cylinder with twine, then coat the surface with glue, and apply a final coating of coarse emery.
- both the card-cylinder and the grinding-cylinder revolve in the same direotion, the sharpening of the teeth being effected by the grains of coarse emery striking against the sidcs of the said teeth at the point of contact between the two cylinders.
- This plan however,'fails to impart the desired sharp point to the tooth, the latter, after being operated upon by such a machine, being in the condition shown in the diagram, Fig. 2, a result which is due partly to the large and coarse grains of emery employed, and partly to the uncertainty and irregularity of their action.
- the frame In grinding card-flats 'the frame is moved across the face of the grinding-cylinder in a direction at right angles to the axis of the same, the grinding being effected at the point where the ends of the wires come in contact with the face of the grinding-cylinder in the same manner as in grinding the teeth of the card-cylinders.
- the teeth of the card-cylinder will be strai'ghtened simultaneously with the sharpening operation by having their ends brought into contact with 'the bottoms of the grooves; but, if desired, a separate plain cylinder may' be employed for straightening the teeth in addition to the sharpening'cylinder A.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Description
M. A. FURBUSH.
CARD-GRINDER. N 181,933. Paten'tedS'ept. 5,1876.
Tfqf T1292.
N.PETER5. PNOTO-LITMOGRAPHER wAsuxNGYon D c UNITED STATES PATENT OFFICE.
MERRILL A. FURBUSH, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN CARD'GRINDERS.
specification forming part of Letters Patent No. 181,933, dated September 5, 1876; application filed May 18, 1876.
lhad to the accompanying drawing, which represents one form of device by which my in- Vention may be carried into effect.
In grinding the teeth of card cylinders or flats it is desirable that they should be beveled on both sides, so as to form a sharp point, as shown in the enlarged diagram, Fig. 1.
The ordinary method of grinding the teeth is to first wrap a cylinder with twine, then coat the surface with glue, and apply a final coating of coarse emery.
In carrying out the grinding operation both the card-cylinder and the grinding-cylinder revolve in the same direotion, the sharpening of the teeth being effected by the grains of coarse emery striking against the sidcs of the said teeth at the point of contact between the two cylinders. This plan, however,'fails to impart the desired sharp point to the tooth, the latter, after being operated upon by such a machine, being in the condition shown in the diagram, Fig. 2, a result which is due partly to the large and coarse grains of emery employed, and partly to the uncertainty and irregularity of their action. This objection I overcom'e, and produce teeth With the desired sharp or, as they are technically termed, needle points, by the use of fine ilour emery and oil, or water in connection with a grooved or threaded cylinder of metal, such as shown at A in Fig. 3 of the drawing. Both this cylinder and the card-cylinder :rotate in the same presented by the edges of the teeth of .the
cylinder A.
In grinding card-flats 'the frame is moved across the face of the grinding-cylinder in a direction at right angles to the axis of the same, the grinding being effected at the point where the ends of the wires come in contact with the face of the grinding-cylinder in the same manner as in grinding the teeth of the card-cylinders. As the grooves between the teeth are 'all of one depth, the teeth of the card-cylinder will be strai'ghtened simultaneously with the sharpening operation by having their ends brought into contact with 'the bottoms of the grooves; but, if desired, a separate plain cylinder may' be employed for straightening the teeth in addition to the sharpening'cylinder A.
I have shown in the drawin'g a cylinder, A, extending the entire width of the card-cylinder, which is shown by dotted lines; but it will be evident that a smaller Vgrooved cylinder arranged to traverse across the face of the card-cylinder might be used, if desired.
l claim as my invention- The within-described cylinder, having con-- tinuous V-shaped ribs, by which moistened emery is applied to the teeth of the card-cylinder, as set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
MERRILL A. FURBUSH.
Witnesses:
HARRY HoWsoN, Jr., HARRY SMITH.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US181933A true US181933A (en) | 1876-09-05 |
Family
ID=2251339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US181933D Expired - Lifetime US181933A (en) | Improvement in card-grinders |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US181933A (en) |
-
0
- US US181933D patent/US181933A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Puerto et al. | Evolution of surface roughness in grinding and its relationship with the dressing parameters and the radial wear | |
| Ramesh Babu et al. | Investigations on laser dressing of grinding wheels—part II: grinding performance of a laser dressed aluminum oxide wheel | |
| US2849844A (en) | Card clothing grinding head | |
| DE2840940B2 (en) | Process for grinding tooth flanks of straight or helical toothed gears as well as gear grinding machine for carrying out the process | |
| Görgülü et al. | Evaluation of continuous grinding tests on some marble and limestone units with silicon carbide and diamond type abrasives | |
| CN108349057B (en) | Method and apparatus for forming a uniform ground surface of a metal strip | |
| US2355174A (en) | Method and apparatus for surface conditioning wire and the like | |
| US341867A (en) | andrews | |
| US6855044B2 (en) | Burr for preparing a homogeneous pulpstone surface | |
| DE10342137B4 (en) | Apparatus and method for finish machining of shafts, in particular crankshafts and camshafts | |
| US184348A (en) | Improvement in machines for pointing wire for sewing-machine needles | |
| US4974367A (en) | Method of an arrangement for grinding workpieces with profiles | |
| DE2015385A1 (en) | Surface grinding device, msbe special for grinding surfaces on workpieces made of stone, glass and similar materials | |
| KR20230020577A (en) | Spool with saw wire having elastic and plastic rotations | |
| DE841483C (en) | Device for the production of synthetic threads, in particular polyamide threads and those made of high-polymer polymethylene terephthalates | |
| US302652A (en) | Wilhelm deckeb | |
| US371778A (en) | Doug-all | |
| CN101517159B (en) | Wood fiber separation device and method thereof | |
| US439819A (en) | Cylindrical surfaces | |
| SU618273A1 (en) | Diamond abrasive tool truing method | |
| US1219299A (en) | Bur for treating grindstones. | |
| SU755523A1 (en) | METHOD FOR FINISHING | |
| DE4225259C1 (en) | Process for fine grinding the camshafts of camshafts and camshaft fine grinding machines for carrying out the process | |
| DE2125942A1 (en) | Abrasives and methods of making an abrasive | |
| SU1627375A1 (en) | Method of grinding milling cutters with straight chip flutes |