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The Latch-Hook Chain Stitcher: A Hook Needle From Below, Its Latch Closed by the Cloth
A hook needle rising through the cloth from below catches the thread above and draws it down as a loop; but going up, the open hook catches in the cloth, and coming down it may drop the loop.
Daniel Weaver of Guilderland, New York, received US 80,789, dated 4 August 1868, for a machine in which "the hook-needle is provided with a latch, which recedes as the needle rises, so that the hook will catch the thread presented to it and, forming a loop, carry it down through the material, the loop of the thread being retained in the hook by a latch, which also prevents the hook in its descent from catching in the material." A tappet-arm opens the latch to cast off the loop, a spring closes it, and a fork rising through slots in the cloth-plate feeds the work with the needle.
This rung works out how the bracket's place sets the stitch, then builds a hand-cranked demonstrator from a latch-hook needle on a rocking bar under a cloth-plate, and sews a chain stitch from below.
高级
About 2 days
说明
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Feed from the bracket
Feed from the bracket
正在加载 Jupyter 笔记本…
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A hook-needle machine before it
A hook-needle machine before it
The embedded blueprint works on a machine whose hook needle rises through the work. Weaver adds a latch that shuts the hook so it neither catches the cloth nor drops the loop.
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Read US 80,789
Read US 80,789
"The needle n is provided with a latch or slide, e, which is embedded in a groove in the needle-bar and subjected to the action of a spring, f, which has a tendency to keep the point of the latch in contact with the barb of the hook, so that said hook is closed."
"By these means a chain-stitch is formed and a sewing mechanism is obtained which is very simple in its construction and sure in its operation. The feed of the material to be sewed is effected by the needle itself and the fork, said needle and fork being so arranged that they receive a compound motion—viz., a reciprocating and an oscillating motion"
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Build the demonstrator and sew from below
Build the demonstrator and sew from below
**Frame and plate.** Make a hardwood table with a thin plywood cloth-plate on top, slotted for the needle, and fix a sprung wooden foot above it that presses the cloth down.
**Needle bar.** Under the plate, pivot a hardwood needle-bar in a bracket, its lower end on a wrist-pin on a hand-turned disc. Fix a crochet hook in its upper end as the hook needle, pointing up through the slot.
**Latch.** Glue a thin strip of spring steel along the hook's shank as the latch, bent so its tip rests on the hook's barb and closes it; fix a small stop under the plate that the latch meets as the hook comes down, opening it to cast off.
**Test.** Lay cloth under the foot, lead a thread over it from a spool, and turn the disc slowly. Watch the hook catch the thread above, draw a loop down, and draw the next loop through it. Move the bracket's pivot and see the stitch length change.
此步骤所需材料：
硬木板2 个
胶合板1 个
硬木块1 个
木螺钉12 个
弹簧钢带0.1 米
压缩弹簧套件1 个
双组分环氧胶1 个
棉线1 个
棉布（轻薄）1 个所需工具：
手锯
木工凿子套装
充电式电钻
钻头套装
钩针套装
圆嘴钳
螺丝刀套装
夹具
6 英寸数显卡尺5
5
A hook that snags, drops loops or skips
A hook that snags, drops loops or skips
Latch-hook chain stitcher troubleshooting.
Flow
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6
History and honest limits
History and honest limits
**Daniel Weaver** of Guilderland, Albany County, New York, received US 80,789, dated 4 August 1868. His needle-bar G was driven by the wrist-pin a on the disc F of the driving shaft E, its bracket I pivoted on a slide u adjusted by the lever K; the tappet-arm g opened the latch, and the stop h held it open as the needle rose; the fork k on a rod l with the spring q fed the material; the foot C was fixed and the cloth-plate H sprung up against it. His claims cover the spring and tappet-arm with the latch and hook-needle, the stop, the fork's spring and bracket, and the slide and hinged bracket with the lever.
**Honest limits.** A crochet hook with a strip latch on a hand-turned wooden linkage stands in for his machine, and the fork feed is left out. The notebook's stitch length is a small-angle approximation; its values are examples. Your chain stitch is the result.
材料
9- 2 个占位符
- 1 个占位符
- 1 个占位符
- 12 个占位符
- 0.1 米占位符
- 1 个占位符
- 1 个占位符
- 1 个占位符
- 1 个占位符
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