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The Shielded Double Crochet Hook: Two Sizes That Slide Out of One Tube
Warren H. Stansbery, Grand Haven, Michigan · Public domain (expired patent)
Martin

Imeundwa na

Martin

6. Oktoba 2026NO
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The Shielded Double Crochet Hook: Two Sizes That Slide Out of One Tube

A bare crochet hook catches on everything in a bag, and two sizes mean two loose tools. Warren H. Stansbery of Grand Haven, Michigan, received US 1,269,014, patented 11 June 1918, for a double-ended hook in a shield: a tube with a slot along one side holds a hook member with a hook at each end, preferably of different sizes; a sleeve with a pin through the slot pushes either hook out and locks it in the slot's right-angled end, and inward bends at mid-length hold the member when it is stowed. This rung works out the slot length, then builds the shield from brass tube and two bought hooks, and tests how firmly it stows and locks.
Kati
About 3 hours

Maagizo

1

Slot length

Inapakia daftari la Jupyter…
2

Several sizes carried in one case before it

The embedded blueprint keeps hooks of several sizes in a case. Stansbery puts two sizes on one member that slides out of its own shield.
3

Read US 1,269,014

"When the device is not in use the double ended hook member is entirely within the shield and the cylindrical section 4 thereof is frictionally engaged by said projections 10 whereby the hook member is held against any accidental movement with respect to the shield. By grasping sleeve 7 either end of the hook member may be projected beyond the shield as shown in Figs. 3 and 4, pin 8, or 8a or 8b moving through the slot 2 until it reaches one end thereof after which the combined sleeve pin and hook may be turned to seat the pin in the extension 3 of the slot, this holding the hook member in position with respect to the shield."
4

Cut the shield and slot

Cut 150 mm of 3/8" brass tube. Mark a line along it and cut a 2 mm slot on it with the rotary tool's cut-off disc from 15 mm to 135 mm, with a 5 mm turn at right angles at each end. Deburr with needle files.

Vifaa kwa hatua hii:

Bomba la shaba la kipenyo cha nje milimita 9,5Bomba la shaba la kipenyo cha nje milimita 9,51 kipande

Zana zinazohitajika:

Msumeno wa chumaMsumeno wa chuma
Kibano cha meza ya kaziKibano cha meza ya kazi
Kifaa cha kuzunguka (aina ya Dremel)Kifaa cha kuzunguka (aina ya Dremel)
Seti ya tupa ndogoSeti ya tupa ndogo
Kalamu ya Wino wa KudumuKalamu ya Wino wa Kudumu
RulaRula
Miwani ya usalama iliyo waziMiwani ya usalama iliyo wazi
5

Make the hook member

Sand 40 mm of hardwood dowel until it slides freely in the tube. Drill each end on the axis for a hook's shank. Cut two hooks of different sizes from the set to leave 50 mm each, and epoxy one into each end.

Vifaa kwa hatua hii:

Vijiti vya mbao ngumuVijiti vya mbao ngumu1 kipande
Epoksi ya Sehemu MbiliEpoksi ya Sehemu Mbili1 kipande

Zana zinazohitajika:

Sandarusi (karatasi ya kusugua)Sandarusi (karatasi ya kusugua)
Kipima-unene cha dijitali cha inchi 6Kipima-unene cha dijitali cha inchi 6
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Msumeno wa chumaMsumeno wa chuma
Seti ya sindano za kufuma kwa ndoanoSeti ya sindano za kufuma kwa ndoano
6

Fit the sleeve and pin

Cut 20 mm of 1/2" brass tube for the sleeve and drill a 1.5 mm hole through one side. Slide the member into the shield, the sleeve over it, and push a 1.5 mm steel pin through the sleeve and slot into a 1.5 mm hole drilled in the dowel's middle.

Vifaa kwa hatua hii:

Mrija wa shaba kipenyo cha nje inchi 1/2Mrija wa shaba kipenyo cha nje inchi 1/21 kipande
Ufito wa chuma lainiUfito wa chuma laini1 kipande

Zana zinazohitajika:

Msumeno wa chumaMsumeno wa chuma
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
NyundoNyundo
7

Dent the stops

With the member centred, tap a light dent inward with the centre punch on each side of the slot at mid-length, until the dowel is gripped but still slides.

Zana zinazohitajika:

Kigwe cha KatikatiKigwe cha Katikati
NyundoNyundo
8

Or print it: one shield, a member per yarn weight

Instead of brass and bought hooks, print the parts in PLA at 0.12 mm layers, 100 % infill for the members: - the shield, 150 mm long with its slot and right-angled turns - the knurled sleeve - a member for your yarn: 3.5/4.5 mm for fine yarn, 5/6 mm for medium, 6.5/8 mm for bulky Every member has the same 10 mm core, so one shield takes them all. Print members standing upright, then join sleeve, slot and member with a 2 mm steel pin, as in step 6.
Hatua 8 - Image 1

Vifaa kwa hatua hii:

Uzi wa PLAUzi wa PLA1 kipande

Zana zinazohitajika:

Printa ya 3D ya nyuzi (FDM)Printa ya 3D ya nyuzi (FDM)
9

Print the shield

The shield, printed as step 8 describes.
Faili ya UsanifuSTLCC0 - Free
Pakua modeli
10

Print the knurled sleeve

The knurled sleeve, printed as step 8 describes.
Faili ya UsanifuSTLCC0 - Free
Pakua modeli
11

Print the 3.5/4.5 mm member

The 3.5/4.5 mm member, printed as step 8 describes.
Faili ya UsanifuSTLCC0 - Free
Pakua modeli
12

Print the 5/6 mm member

The 5/6 mm member, printed as step 8 describes.
Faili ya UsanifuSTLCC0 - Free
Pakua modeli
13

Print the 6.5/8 mm member

The 6.5/8 mm member, printed as step 8 describes.
Faili ya UsanifuSTLCC0 - Free
Pakua modeli
14

The patent drawing

US 1,269,014 drawing sheet, public domain (expired patent).
Hatua 14 - Image 1
15

Test it

Pull the sleeve with the force meter to unstow the member; note the force. Lock each hook out, shake it hard ten times, and check it has not moved. Crochet a 20-stitch chain with each hook and time it.

Vifaa kwa hatua hii:

UziUzi1 kipande

Zana zinazohitajika:

Kipima-nguvu (mizani ya springi)Kipima-nguvu (mizani ya springi)
Saa ya kupima mudaSaa ya kupima muda
16

A hook that rattles, will not lock or will not slide

Shielded double crochet hook troubleshooting.

Flow

Loading...
17

History and honest limits

**Warren H. Stansbery** of Grand Haven, Michigan, filed US 1,269,014 on 27 February 1917; it was patented 11 June 1918. His sleeve has a knurled surface, convenient for grasping in crocheting; he showed a screw, a headed connector and a straight pin through the slot, and wrote that the straight pin "is the way that the device has been actually constructed." **Honest limits.** He gives no sizes; ours are examples, and a dowel with two bought hooks stands in for his one-piece member. Your forces and times are the result.

Vifaa

7

Zana Zinazohitajika

17

Faili za muundo

5

Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

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