Boring Tools and their Makers


 

Gordon's Bit Fastening - Scientific American, Vol.14, 1866


Every trade has some special annoyance or vexation appertaining to it which tries the temper and delays the workman and we are sure that many can bear witness to one trial carpenters and joiners have to bear; that is, when withdrawing a bit from a hole just bored, to have it part company with the brace and fall out.

This does not matter much where there is but one hole to be made, but when there are many the evil is a serious one. 

The reader will see in this engraving a remedy for it.

The shank of the brace is provided with a screw thread, A, and nut, B. This nut, when screwed up, forces a jaw, C, up to the protruding end of the bit, and also against the body of it below, so that it is firmly held in place beyond the possibility of accidental detachment.

Besides the sense of security thus given, the bit bores better and straighter. Sometimes the shanks of the bits do not fit the squared socket in the brace, and they wobble about. With this fastening any bit can be securely held.

Patented through the Scientific American Patent Agency on Jan. 16, 1866, by J. P. Gordon, whom address at West Garland, Me., for further information.

Patent 52,042 - 01/16/1866: Improvement for Bit-holders for Brace by J. Parker Gordon

05/2012

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