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Bench Grinder: Made from an Old Engine Piston (Shop Notes, 1919)
A belt-driven bench grinder or polishing head built from a worn engine piston: the shaft runs in bushings in the piston-pin bosses, the belt pulley turns inside the piston (which guards it), and emery or polishing wheels go on one or both ends.
Source: Popular Mechanics Shop Notes for 1919, p. 3249. Unknown: sizes. Picture: the article's drawing.
Katamtaman
Unknown
Mga Tagubilin
1
1
Bush the piston
Bush the piston
Fit the piston-pin bearings of an old piston with brass or bronze bushings, or pour babbitt round the shaft to form the bearing. Fit a grease cup on top, as in the drawing.
Mga materyales para sa hakbang na ito:
Kabuuan ng pistón at biyela1 old piston
Tubong tanso-dilaw2 bushings
Hindi alam na metal1 grease cupMga kailangang kasangkapan:
Barenang de-kamay
Kikil na Pang-metal2
2
Fit shaft, pulley and wheels
Fit shaft, pulley and wheels
Cut oil grooves along the shaft. Put the belt pulley on it inside the piston, where the piston wall guards the belt. Hold the shaft endwise with collars and setscrews, and mount emery or polishing wheels on one or both ends.
Mga materyales para sa hakbang na ito:
Bilog na Bara ng Malambot na Asero1 piraso
Kalo1 piraso
Shaft Collar2 piraso
Gulong na panggiling1 emery or polishingMga kailangang kasangkapan:
Torno para sa Metal
Llaveng ingles3
3
Mount it
Mount it
Bolt the piston to the bench or to a special stand; make the stand very stiff for the high speeds these tools run at.
Mga materyales para sa hakbang na ito:
Turnilyong anim-anggulo - uri 8.81 number not givenMga kailangang kasangkapan:
Llaveng inglesMga Materyales
8- 1 old pistonPlaceholder
- 2 bushingsPlaceholder
- 1 grease cupPlaceholder
- Placeholder
- 1 pirasoPlaceholder
- 2 pirasoPlaceholder
- 1 emery or polishingPlaceholder
- 1 number not givenPlaceholder
Mga Kinakailangang Kasangkapan
4- Placeholder
- Placeholder
- Placeholder
- Placeholder
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