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Belt Sander: a Lathe-Driven Garnet-Belt Sander (Shop Notes, 1919)
A shop belt sander for dressing wood surfaces: a 6 in garnet-paper belt running over four crowned wooden pulleys, one driven by the lathe, pressed down onto the work with a hand float.
Best belt speed about 2,500 ft per minute; leave about 1 in between work and belt.
Source: Popular Mechanics Shop Notes for 1919, p. 3235. Picture: the article's drawing.
中级
Unknown
说明
1
1
Turn the pulleys
Turn the pulleys
Build up four solid wood pulleys 10 in across with 8 in faces and turn them in the lathe with a very slight crown; too much crown harms the belt.
此步骤所需材料：
硬木板4 built-up pulleys所需工具：
木工车床2
2
Mount the pulleys
Mount the pulleys
Mount one pulley on a firmly held arbor in the lathe and the other three on iron-pipe shafts on a frame (drawing). Turn and file a true journal on each pipe, pour babbitt bushings in the pulleys, and cut oil grooves in the pipe or babbitt. Supporting the shafts on one side lets the belt slip off; supporting both sides is stronger.
此步骤所需材料：
钢管（厚壁、螺纹端）3 shafts
未知金属1 babbitt bushings
松木锯材1 frame所需工具：
金属锉
漏勺
手锯
锤子3
3
Make the belt
Make the belt
Cut 6 in garnet paper (No. 1 1/2 for general work) so the ends just meet over the pulleys. Glue the smooth side at the joint, splice it with a strip of cloth about 1 in wide and then one about 3 in wide, cover each side with paper, and clamp between two small boards.
此步骤所需材料：
砂纸1 6 in garnet paper
棉布1 个
动物胶1 个所需工具：
C 形夹4
4
Set up and run
Set up and run
Run the belt at about 2,500 ft per minute using the lathe's cone pulley. Set the work about 1 in below the belt on a table or a low sliding platform (two sets of tongue-and-groove joints at right angles), start the machine and press the belt down with a float like a blackboard eraser, or a roller.
此步骤所需材料：
松木锯材1 platform, float所需工具：
木工车床材料
7- 4 built-up pulleys占位符
- 3 shafts占位符
- 1 babbitt bushings占位符
- 1 platform, float占位符
- 1 6 in garnet paper占位符
- 1 个占位符
- 1 个占位符
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