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SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Wood Lathe: Simple Amateur's Lathe with a Maple Bed, 7 in Swing (Lathe Work for Beginners, 1922)
A wood-turning lathe an amateur can build: two strips of hard maple bolted to maple legs make the 3 ft bed, and cast-iron head-stock, tail-stock, hand-rest body, hand wheels and cone pulleys are cast from home-made patterns. Steel spindles turn in the cast-iron bearings, and a cone pulley drives the head-stock from a countershaft.
Result: a wood lathe with a 7 in swing and a 3 ft bed.
Source: R. F. Yates, Lathe Work for Beginners (1922), Chapter XII, pp. 208-216. Unknown: the pattern sizes (on the book's drawings) and the drive. Picture: Fig. 157 of the book.
Juu
Unknown
Maagizo
1
1
Make the patterns and get castings
Make the patterns and get castings
Make patterns from any handy wood: one for both head-stock and tail-stock, with a web joining the two bearings so the casting does not spring; one for the hand wheels (three castings); one for the washers (two); the cone pulley (two: lathe and countershaft); and the hand-rest body. Give them a slight draw taper. Have them cast in iron at a foundry. Not given: pattern sizes (on the book's drawings).
Vifaa kwa hatua hii:
Vitu vya chuma cha kusubu1 head-stock, tail-stock, wheels, washers, pulleys, rest bodyZana zinazohitajika:
Ubao wa mbao
Tanuru la kupulizia
Vipimo visivyojulikana2
2
Build the maple bed
Build the maple bed
Make the bed of two strips of clear hard maple 1 in thick, 4 in wide and about 36 in long (about 1 1/2 in thick for a longer bed), and two maple legs, the part between the ways cut exactly square. Bore a 5/8 in hole through the head-stock leg in line with the head-stock's 1/2 in tapped hole, recessed below for a nut and washers. Bolt bed to legs with eight 3/8 in carriage bolts. Sand it and give it a coat of clear shellac against warping. White oak will do if there is no maple.
Vifaa kwa hatua hii:
Ubao wa mbao gumu1 ways and legs
Bolti ya kichwa cha duara8 3/8 in carriage bolts
Shelaki1 finishZana zinazohitajika:
Kekee cha Nguzo
Sandarusi (karatasi ya kusugua)3
3
Machine the stocks
Machine the stocks
Face the outside ends of the head-stock and tail-stock bearings on a shaper or milling machine. Drill the bearings between centres in a lathe with a 47/64 in drill, saw off the joining web, face the inner ends and ream to 3/4 in. Line both castings up on a 3/4 in shaft and machine their bottoms. Drill oil holes in the head-stock lugs. Tap the tail-stock front lug 3/16 in for a clamp turned, heated and bent to shape, with soft copper or brass under it; tap the tail-stock rear bearing 7/8 in, 9 threads.
Vifaa kwa hatua hii:
Metali isiyojulikana1 clamp and copper padZana zinazohitajika:
Mashine ya kusaga chuma
Kereza ya Chuma
Seti ya kukata nyuzi za skrubu
Jiko la Kufua4
4
Turn the spindles and pulley
Turn the spindles and pulley
Turn the head-stock spindle from 1 3/8 in machine steel: 3/4 in diameter, a 7/8 in nose threaded 9 to the inch, a 3/8 in hole right through and a No. 1 Morse taper in the nose. Turn the tail-stock spindle from 7/8 in stock, 3/4 in diameter with a 7/8 in, 9-thread part. Centre each piece, drill halfway from each end with a 3/8 in drill, ream, then finish between centres. Turn the cone pulley with crowned faces, wide enough to run easily between the bearings, and fix it to the spindle with a 3/8 in headless set screw.
Vifaa kwa hatua hii:
Ufito mviringo wa chuma laini1 spindlesMetali isiyojulikana1 set screwsZana zinazohitajika:
Kereza ya ChumaKekee cha Nguzo5
5
Fit the wheels and hand rest, and assemble
Fit the wheels and hand rest, and assemble
Drill hand wheel N 3/4 in for the tail-stock spindle and hold it with a 1/4 in set screw; tap the other two wheels 1/2 in. Drill the washers 9/16 in. Bolt the head-stock down with a stud through the leg, and fit a 1/2 in stud about 7 in long for the tail-stock and a 1/2 in square-headed bolt for the hand-rest body. Plane the hand rest's bottom, drill it 3/4 in, and fit tee-rests of 1/4 x 1 in flat steel welded to 3/4 in shafting, held by a 1/4 in set screw; make several lengths. The cast iron serves as bearing metal, or the bearings can be bushed or babbitted.
Vifaa kwa hatua hii:
Pau Bapa la Chuma Laini1 tee-restsMetali isiyojulikana1 studs, bolts, set screws, shaftingZana zinazohitajika:
Kekee cha NguzoSeti ya kukata nyuzi za skrubuJiko la KufuaVifaa
7- 1 head-stock, tail-stock, wheels, washers, pulleys, rest bodyKishikilia Nafasi
- 1 ways and legsKishikilia Nafasi
- 8 3/8 in carriage boltsKishikilia Nafasi
- 1 finishKishikilia Nafasi
- 1 studs, bolts, set screws, shaftingKishikilia Nafasi
- 1 spindlesKishikilia Nafasi
- 1 tee-restsKishikilia Nafasi
Zana Zinazohitajika
9- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
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Mchoro huu unatengeneza
CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.