Image
|
Title: |
1910 article - friction driven sensitive drill press |
|
Source: |
1910-05-05 American Machinist |
|
Insert Date: |
1/29/2014 9:22:34 PM |
A Friction Driven Sensitive Drill Press
The halftone shows a new style of drill press which has been brought out by the Barry & Zecher Company, Pancaster, Penn., and is known as the No. 2 drill press
There is but one driving driving pulley and the drill press can be belted direct to the line shaft. It will be observed that there are two foot levers on the base. The one to the left raises the friction disk off its driver and stops the machine. The treadle to the right controls the position of the driver on the friction disk and consequently the speed of the spindle. The speed can be altered at will with the machine in motion and with the driving pulley making 650 turns per minute, any speed from 250 to 1800 can be obtained at the spindle. The fork on the driving pulley is merely to keep the belt in place when starting and not in any way to act as a shifter. The machine will drill up to 9/16 inch; the greatest distance from spindle to table is 36 inches; from center of spindle to column 13 inches; size of table over oil groves, 16x13 inches; net weight, 300 pounds. |
|
|
|
|