US128051A - Improvement in the manufacture of tension-wheels for sewing-machines - Google Patents
Improvement in the manufacture of tension-wheels for sewing-machines Download PDFInfo
- Publication number
- US128051A US128051A US128051DA US128051A US 128051 A US128051 A US 128051A US 128051D A US128051D A US 128051DA US 128051 A US128051 A US 128051A
- Authority
- US
- United States
- Prior art keywords
- tension
- sewing
- wheels
- machines
- improvement
- 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
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general ; Anti-clogging castors
- B60B33/0028—Construction of wheels; methods of assembling on axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49481—Wheel making
Definitions
- the improvements relate to casting or otherwise making the tension wheel of a sewingmachine in one piece, and afterward pressing or forcing the same for the purpose of finishing the thread-groove.
- Figures 1 and 2 are enlarged sectional views.
- Fig. 3 is an enlarged side view.
- the wheel A is formed or cast in a single piece;
- a V-shapcd groove is cut in its rim, and afterward placed in a press or other suitable machine and pressed or forced until the angle 0 of the V becomes extremely fine and knife-edge like, as shown at Fig. 2.
- a press or other suitable machine pressed or forced until the angle 0 of the V becomes extremely fine and knife-edge like, as shown at Fig. 2.
- Cutting-tools might be made with points of sufiicient fineness and durability to cut a groove for the coarser grades of thread,
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Description
for Sewing-Machines.
Patented June18, I872.
AM. FHGM-HTHOGRMWIO m, MK (omen/1:3 PROCESS,
UNITED STATES IRA MANNING, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN THE MANUFACTURE OF TENSION-WHEELS FOR SEWING-MACHINES.
Specification forming part of Letters Patent No. 128,051, dated June 18, 1872.
Specification describing certain Improvements in the Tension-Wheel of a SewingMachine, invented by IRA MANNING, of the city and county of Philadelphia and State of Penn'- sylvania.
The improvements relate to casting or otherwise making the tension wheel of a sewingmachine in one piece, and afterward pressing or forcing the same for the purpose of finishing the thread-groove.
Figures 1 and 2 are enlarged sectional views. Fig. 3 is an enlarged side view.
The wheel A is formed or cast in a single piece; A V-shapcd groove is cut in its rim, and afterward placed in a press or other suitable machine and pressed or forced until the angle 0 of the V becomes extremely fine and knife-edge like, as shown at Fig. 2. Heretofore it has not been possible to cut a V-groove in a solid tension-wheel, and at the same time make its angle 0 sufficiently sharp to pinch the thread, and thereby cause the necessary tension. Cutting-tools might be made with points of sufiicient fineness and durability to cut a groove for the coarser grades of thread,
but for fine silk or cotton it is practically impossible. Afterthe groove has been completed it can be freed of dirt or deposit by openings d, Fig. 3, the peripheries of whichcut or break, at intervals, the angle c.- The angle or bottom of the V-shaped groove b is shown by the line 0; the peripheries of the openings (1 project slightly above it. The sliding of the thread carries all deposit into these openings and keeps the groove free of dirt.
I claim as my invention The improved method, herein described, of making tension-wheels for sewing-maohines that is to say, casting or otherwise constructing the wheel of one piece of metal, then form
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US128051A true US128051A (en) | 1872-06-18 |
Family
ID=2197470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US128051D Expired - Lifetime US128051A (en) | Improvement in the manufacture of tension-wheels for sewing-machines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US128051A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2819501A (en) * | 1950-10-13 | 1958-01-14 | Griffin Wheel Co | Wheel mold |
| US6047846A (en) * | 1991-02-25 | 2000-04-11 | Greif Bros. Corp. Of Ohio | Plastic drum with drain sump |
-
0
- US US128051D patent/US128051A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2819501A (en) * | 1950-10-13 | 1958-01-14 | Griffin Wheel Co | Wheel mold |
| US6047846A (en) * | 1991-02-25 | 2000-04-11 | Greif Bros. Corp. Of Ohio | Plastic drum with drain sump |
| US6223930B1 (en) | 1991-02-25 | 2001-05-01 | Greif Bros. Corporation Of Ohio, Inc. | Plastic drum with drain sump |
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