USRE1073E - Improvement in sewing-machines - Google Patents
Improvement in sewing-machines Download PDFInfo
- Publication number
- USRE1073E USRE1073E US RE1073 E USRE1073 E US RE1073E
- Authority
- US
- United States
- Prior art keywords
- sewing
- machines
- improvement
- feeding
- foot
- Prior art date
Links
- 239000000463 material Substances 0.000 description 12
- 239000004744 fabric Substances 0.000 description 10
- 239000007799 cork Substances 0.000 description 6
- 230000035611 feeding Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 240000007748 Annona glabra Species 0.000 description 2
- 240000002027 Ficus elastica Species 0.000 description 2
- 244000144229 Gaultheria miqueliana Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001747 exhibiting Effects 0.000 description 2
- 230000001771 impaired Effects 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 230000000149 penetrating Effects 0.000 description 2
- 229920001195 polyisoprene Polymers 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
Images
Definitions
- My invention consists in the discovery and employment for the moving surface of the ordinary cork-wood of commerce, and one method in whichI employ it as a feed-surface is as follows:
- the smooth surface of the table, upon which the material to be sewed is to progress is shown at L, and this should be of metal.
- I represents a surface of cork, cut smoothly to appropriate shape, and affixed upon the under side of the foot b. YVhen the machine isin the machine ispreventing motion, an ordinary feeding action will bergiven to the feeding-foot, a proper pressure being afforded by its spring d. rlhe peculiarity of the cork surface is that it does not takel upon it. permanently any portion of the fabric, and thus while it is in fact a smooth surface it is still of such different frictional face, which, as described, is of smooth metal, that by the joint action of the two surfaces I and L even the most delicate texture will be accurately fed along.
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