Please note

Because of the lack of published trowel and masonry tool histories, the information here is based on other sources that may be less reliable and certainly are incomplete. These include eBay and tools that I purchase myself that are the starting points for my research. I will write what I know as I learn it. If what you read here interests you, please check back often and look for revisions and corrections. Scanned catalogs are either mine or by Rose Antique Tools and used with permission, and are on Google Docs as pdf files. A few are links to other websites. Your photos and information are welcome. Please click on any picture to enlarge it. Comments are welcome, but any with links will be deleted as possible spam.

Monday, September 12, 2016

Hand Powered Masonry Drills

The early hammer drill to the right was sold in the USA by Orr & Lockett Hardware Co. in 1914. The Rawlplug Mechanical Hammer was patented and sold in the UK and manufactured in the UK and Belgium. Another US maker was the Diamond Expansion Bolt Co. of New York City. Their hammer drill was patented by James T. Hoal on 4 August, 1914, U.S. Patent No. 1106306.
Orr & Lockett hammer drill

Rawlplug Mechanical Hammer
Rawlplug Mechanical Hammer

Diamond drill patent

Diamond Expansion Bolt drill, photo by Martin J. Donnelly Auctions

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