SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Dial Gauge: Logan, 1883
John Logan of Waltham, Massachusetts, patented this dial gauge in 1883, US 283,627. A gauging bar slides lengthwise through guides in a case with a graduated dial. A chain fixed to the bar is wound round the arbor that carries the pointer, so when the bar moves the chain unwinds and turns the pointer. The pointer's end moves much further than the bar, which makes the reading very delicate. A spring on the arbor winds the chain back and returns the bar to zero. A jaw on the case and a jaw on the bar make it a caliper; a slender rod beside the bar's other end makes it a depth gauge.
Juu
Workshop process
Maagizo
1
1
Case and dial
Case and dial
Make the case with the graduated dial, with tubular guide projections at opposite sides for the gauging bar.
Vifaa kwa hatua hii:
Kasha la kipimo cha uso lenye uso wenye alama1 kipande2
2
Arbor, chain and bar
Arbor, chain and bar
Pivot the arbor carrying the pointer at the dial's centre. Pass the gauging bar through the guides and connect it to the arbor by a chain fixed to the bar and wound round the arbor.
Vifaa kwa hatua hii:
Ekseli ya mshale na mshale1 kipande
Kijiti cha kupimia1 kipande
Mnyororo mwembamba1 kipandeZana zinazohitajika:
Seti ya koleo ndogo za usahihi
Seti ya bisibisi3
3
Return spring
Return spring
Connect a spring between the arbor and the case so that it turns the arbor to wind the chain and draws the bar back to the zero position.
Vifaa kwa hatua hii:
Springi ya kurudisha ekseli1 kipandeZana zinazohitajika:
Seti ya koleo ndogo za usahihi4
4
Jaws and depth rod
Jaws and depth rod
Fix a jaw on the case and a matching jaw on the bar; when they touch, the pointer reads zero. Fix a slender gauging rod beside the guide at the other end, in line with the bar's end at zero, for measuring depths.
Vifaa kwa hatua hii:
Taya za kalipa1 kipande
Kijiti cha kupima kina1 kipandeZana zinazohitajika:
Seti ya bisibisiVifaa
7- Kishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
Zana Zinazohitajika
2- Kishikilia Nafasi
- Kishikilia Nafasi
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Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
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