US137947A - Improvement in thread-cutters for sewing-machines - Google Patents
Improvement in thread-cutters for sewing-machines Download PDFInfo
- Publication number
- US137947A US137947A US137947DA US137947A US 137947 A US137947 A US 137947A US 137947D A US137947D A US 137947DA US 137947 A US137947 A US 137947A
- Authority
- US
- United States
- Prior art keywords
- thread
- cutters
- sewing
- machines
- edge
- 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
- 210000001699 lower leg Anatomy 0.000 description 12
- 241000364057 Peoria Species 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 210000000474 Heel Anatomy 0.000 description 2
- 102000018062 Taperin Human genes 0.000 description 2
- 108050007169 Taperin Proteins 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000004301 light adaptation Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
- A01G3/08—Other tools for pruning, branching or delimbing standing trees
Definitions
- Peoria in the county of Peoria and State of 2, 3, and 4 are views of my blade.
- This invention has relation to thread-cutters for sewing-machines and it consists in the means by which the knife is seated firmly in the lower part of the front plate of the machine without pivot, screw, or rivet so that it can be readily removed for sharpening or renewal.
- the object of the present invention is to provide a simple steel cutter which, by a little adaptation of the front plate, can be attached to its lower portion in such a manner that it will be perfectly secure and firm, and can at the same time be readily removed when necessary.
- core-spaces are usually formed, to lessen. the weight, as at a, in the plate A shown on the drawing. In this case it is only necessary to file the taperin g channel b through the wall in the rear face of the plate for the reception of the tapering shaft of the knife. If in an old machine there is no such core-space in the front plate,
- a recess should be made to receive the knife.
- the knife B is formed of a simple steel plate, which may be about one-sixteenth of an inch in thickness.
- the upper part of the plate is fashioned into a tapering shank, 0.
- the rear edge of the shank which continues down to the heel of the blade, is arranged to fit the wall of the core-space.
- the blade 0 is formed at the lower end of the plate.
- the general shape of the knife has a resemblance to a boot or a hook, the cutting-edge being the upper or inside edge of the hook end.
- the knife is ready for use upon being seatedin the tapering channel b through the wall of the front plate, the size and taper of said channel being made to correspond as exactly as possible with the size and taper of the lower or narrower part of the shank.
- the knife is readily made socure for use. work is held in one hand and the thread in the other. The thread, being placed upon the upper or cutting edge of the hook, is drawn toward the operator. The position of the knife is therefore extremely convenient,
- the front plate having the corespace a, with a downwardly-tapering channel, in combination with the knife B, having a downwardly-tapering shank, c, as specified.
Description
UNITED STATES PATENT OFFICE.
FRANCIS V. OBURG, OFPEORIA, ILLINOIS.
IMPROVEMENT IN THREAD-CUTTERS FOR SEWING-MACHINES.
Specification forming part of Letters Patent No. 13?,947, dated April 15, 1873; application filed January 11, 1873.
To all whom it may concern:
Be it known that I, FRANCIS V. ()BURG, of
Peoria, in the county of Peoria and State of 2, 3, and 4 are views of my blade.
This invention has relation to thread-cutters for sewing-machines and it consists in the means by which the knife is seated firmly in the lower part of the front plate of the machine without pivot, screw, or rivet so that it can be readily removed for sharpening or renewal.
The frequent necessity for cutting the threads in operating with a sewing-machine renders some device more at hand than a pair of scissors desirable. Many thread-cutters have been devised for this purpose, which have been in some cases complicated, and in others difficult of attachment. The object of the present invention is to provide a simple steel cutter which, by a little adaptation of the front plate, can be attached to its lower portion in such a manner that it will be perfectly secure and firm, and can at the same time be readily removed when necessary.
In casting the front plates core-spaces are usually formed, to lessen. the weight, as at a, in the plate A shown on the drawing. In this case it is only necessary to file the taperin g channel b through the wall in the rear face of the plate for the reception of the tapering shaft of the knife. If in an old machine there is no such core-space in the front plate,
a recess should be made to receive the knife.
In new machines the core-space can be properly placed for its reception. The knife B is formed of a simple steel plate, which may be about one-sixteenth of an inch in thickness.
The upper part of the plate is fashioned into a tapering shank, 0. The rear edge of the shank, which continues down to the heel of the blade, is arranged to fit the wall of the core-space. The front edge is inclined down= ward and toward the rear edge, terminating at the rear end of the cutting-edge. The blade 0 is formed at the lower end of the plate. The lower edge d of the plate extend ing from the rear edge of the shank forward,- is broad and somewhat curved upward to= ward the point of the blade. From this edge 61 the blade is beveled upward to the oblique cutting-edge e, which extends from said point upward and backward to the front edge of the shank. The general shape of the knife has a resemblance to a boot or a hook, the cutting-edge being the upper or inside edge of the hook end.
Having been properly finished, polished, and sharpened, the knife is ready for use upon being seatedin the tapering channel b through the wall of the front plate, the size and taper of said channel being made to correspond as exactly as possible with the size and taper of the lower or narrower part of the shank. In this manner the knife is readily made socure for use. work is held in one hand and the thread in the other. The thread, being placed upon the upper or cutting edge of the hook, is drawn toward the operator. The position of the knife is therefore extremely convenient,
and it is without danger, as the broad back of the blade is turned toward the operator and downward.
What I claim as my invention, and desire to secure by Letters Patent, is-
The front plate having the corespace a, with a downwardly-tapering channel, in combination with the knife B, having a downwardly-tapering shank, c, as specified.
In testimony that I claim the aboveI have hereunto subscribed my name in the presence of two witnesses.
FRANCIS V. OBURG.
Witnesses:
GEORGE W. GABLE, BARRETT WHITE.
In cutting the thread, the
Publications (1)
Publication Number | Publication Date |
---|---|
US137947A true US137947A (en) | 1873-04-15 |
Family
ID=2207361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US137947D Expired - Lifetime US137947A (en) | Improvement in thread-cutters for sewing-machines |
Country Status (1)
Country | Link |
---|---|
US (1) | US137947A (en) |
-
0
- US US137947D patent/US137947A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US137947A (en) | Improvement in thread-cutters for sewing-machines | |
US117588A (en) | Improvement in ripping-tools | |
US138412A (en) | Improvement in thread-cutters for sewing-machines | |
US403031A (en) | Combination-tool | |
US139350A (en) | Improvement in cutters for sewing-machines | |
US145937A (en) | Improvement in devices for trimming leather | |
US140336A (en) | Improvement in tools for working in leather | |
US104561A (en) | Improvement in thread-cutter tor sewing-machine | |
US142507A (en) | Improvement in machines for skiving and feather-edging boot and shoe soles | |
US534941A (en) | Machine for notching cloth | |
US117839A (en) | Improvement in peg-cutters | |
US1737351A (en) | Edge trimmer for shoe soles | |
US118467A (en) | Improvement in thread-cutters for sewing-machines | |
US530613A (en) | Knife-sharpener | |
USRE9738E (en) | Cutting-tool for planing-machines | |
US123234A (en) | Improvement in pruning-shears | |
US119096A (en) | Improvement in hollow augers | |
US535721A (en) | Saw-filing machine | |
US140599A (en) | Improvement in hand peg-cutters | |
US87440A (en) | George w | |
US186524A (en) | Improvement in welt-trimmers | |
US277602A (en) | Button-hole cutter | |
US101436A (en) | Improvement in machine for cutting locks in hoofs | |
US211842A (en) | Improvement in holders for sickles, knives | |
US142995A (en) | Improvement in coopers crozes and howels |