Ubufatanye
UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Two-Point Marking Gauge from a Pipe Tee and Wing Bolt (Boy Mechanic, 1915)
A small scribing gauge built in a 3/8 in pipe tee: two flat steel bars with bent, sharpened points slide through a slot in a wood plug filling the tee, and a wing bolt screwed through a bushing in the side outlet locks them at the set distance.
Hagati
Two hours
Amabwiriza
1
1
Read the Boy Mechanic
Read the Boy Mechanic
"After the points have been drawn out to the right distance, the wing bolt is turned to hold them in that position."
2
2
Tee and bushing
Tee and bushing
Screw a 3/8 in bushing into the side outlet of a 3/8 in pipe tee and tap the bushing to take a 7/16 in wing bolt.
Ibikoresho by'iyi ntambwe:
Igihuza cy'umuyoboro gifite imirya1 igice
Busheni y'icyuma1 igiceIbikoresho bikenewe:
Agakoresho ko gukata imizingo y'ibyuma
Ifatiro ry'Ameza3
3
Plug and slot
Plug and slot
Drive a tight-fitting wood plug through the run of the tee, grind its ends flush on an emery wheel, and cut a slot 5/16 in square through the plug just under the bushing.
Ibikoresho by'iyi ntambwe:
Ikibaho cy'Igiti Gikomeye1 igiceIbikoresho bikenewe:
Uruziga rwo gusya
Ibyuma byo kubaza
Umucumita w'Intoki4
4
Make the points
Make the points
Cut two pieces of flat steel 1/4 in wide, 1/8 in thick and 1/8 in longer than the tee. Bend the outer end of each at right angles and sharpen it to a point. Fit both in the slot, one from each side.
Ibikoresho by'iyi ntambwe:
Umurongo ugororotse w'icyuma cyoroshye1 igiceIbikoresho bikenewe:
Umucumita w'IbyumaIfatiro ry'Ameza
Amakariso (Ikariso ry'Intoki)
Inyundo5
5
Set and lock
Set and lock
Draw the points out to the distance you want and turn the wing bolt down onto the bars to hold them.
6
6
Troubleshooting
Troubleshooting
Pipe-tee gauge troubleshooting.
Flow
Loading...
7
7
History and honest limits
History and honest limits
From **The Boy Mechanic, Book 2** (Popular Mechanics, 1915), p. 294, by C. Molloy (checked on the archive.org scan boymechanicbook200chic2). The tool list is ours.
Ibikoresho
4- Umwanya
- 1 igiceUmwanya
- 1 igiceUmwanya
- Umwanya
Ibikoresho bikenewe
8- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
Iki gishushanyo gikora
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