NGHỆ THUẬT
LÀM ĐẸP VÀ SỨC KHỎE
THỦ CÔNG
VĂN HÓA VÀ LỊCH SỬ
GIẢI TRÍ
MÔI TRƯỜNG
THỰC PHẨM VÀ ĐỒ UỐNG
KỸ THUẬT NGƯỢC
KHOA HỌC
THỂ THAO
CÔNG NGHỆ
THIẾT BỊ ĐEO

The Spring-Wire Crochet Holder: A Needle Held by Tempered Wire
A crochet needle glued or screwed into a handle is stuck at one length, and a soft-wire holder bent round it slackens the first time the needle is pulled through.
Joseph M. Hoadley, now of Birmingham, Connecticut, received US 76,916, dated 21 April 1868, for a holder for crochet-needles "of the same wire as that from which the needles are produced", "with the needle arranged to slide upon the same, and thus be brought into position for use, where, by the spring to the tempered wire, it is held, whether drawn more or less out of its holder."
This rung works out the grip a wire spring gives and when it takes a set, then bends one holder from piano wire and one from soft wire and measures how hard each holds a hook.
Cơ bản
About 2 hours
Hướng dẫn
1
1
Grip, hold and set of a wire spring
Grip, hold and set of a wire spring
Đang tải sổ tay Jupyter…
2
2
What tempering does
What tempering does
The embedded blueprint hardens and tempers steel. Hoadley's holder works only because its wire is tempered and springs back.
3
3
Read US 76,916
Read US 76,916
"A, in the drawings, represents a crochet-needle, which, in general shape and form, is similar to the ordinary crochet-needles, but, in its manufacture, is made directly from tempered wire, in lieu of wire not tempered, but tempered after the needle is made."
"B, the holder for the needle, which is made from tempered wire. This needle slides upon the holder B, and, as it has a spring, it secures and holds it in whatever position it may be set."
4
4
Bend two holders and measure their grip
Bend two holders and measure their grip
**Spring holder.** Cut 35 cm of 1.2 mm piano wire with the hacksaw; it is too hard for side cutters. With the round-nose pliers bend it into a long narrow loop about 8 cm long to hold in the hand. At the top wind two tight turns round a drill bit 0.3 mm thinner than your steel crochet hook's shank, so the turns spring open and grip the hook when it is pushed through. Tuck the wire ends inside the loop with the flat-nose pliers.
**Soft holder.** Bend a second holder the same way from 1.2 mm galvanised steel wire.
**Test.** Push the hook into each holder, hang the spring scale on it and pull along its length until it slides; note the force. Slide the hook fully in and out 20 times and measure again. Compare with the notebook, then crochet 20 stitches with the hook set at two different lengths.
Vật liệu cho bước này:
Dây đàn piano0.35 mét
Dây thép mạ kẽm0.35 mét
Sợi1 cáiCông cụ cần thiết:
Cưa sắt
Kìm mỏ tròn
Kìm mỏ dẹt
Ê tô bàn nguội
Bộ kim móc len
Lực kế (cân lò xo)
Thước cặp điện tử 6 inch
Thước kẻ
Kính bảo hộ trong suốt5
5
A holder that slips, springs off or snags
A holder that slips, springs off or snags
Spring-wire crochet holder troubleshooting.
Flow
Loading...
6
6
History and honest limits
History and honest limits
**Joseph M. Hoadley** of Birmingham, Connecticut, received US 76,916, dated 21 April 1868 and antedated 8 April 1868. His claims cover a holder formed with the needle from one piece of tempered wire, and a holder of tempered wire on which the needle slides and is held by the holder's elasticity. Five years earlier the same inventor had folded the needle into its handle (US 39,572).
**Honest limits.** A bought steel hook stands in for Hoadley's tempered-wire needle, and piano wire for his holder wire. The notebook models each gripping turn as a straight spring arm; its elastic limits, friction and pull are examples. Your pull readings are the result.
Vật liệu
3- 0.35 métTạm thời
- 0.35 métTạm thời
- 1 cáiTạm thời
Công cụ yêu cầu
9- Tạm thời
- Tạm thời
- Tạm thời
- Tạm thời
- Tạm thời
- Tạm thời
- Tạm thời
- Tạm thời
- Tạm thời
Blueprint liên quan
Các blueprint này chia sẻ kiến thức — kỹ thuật, vật liệu hoặc nguyên tắc
CC0 Phạm vi công cộng
Bản thiết kế này được phát hành theo CC0. Bạn tự do sao chép, sửa đổi, phân phối và sử dụng cho bất kỳ mục đích nào mà không cần xin phép.
Hỗ trợ nhà sáng tạo bằng cách mua sản phẩm qua bản thiết kế, nơi họ nhận Hoa hồng nhà sáng tạo do nhà bán hàng đặt, hoặc tạo phiên bản mới và kết nối trong bản thiết kế riêng để chia sẻ doanh thu.


