And a BNT sledge hammer:
All of the other BNT tools I've found are stamped Sheffield. For example, a wood chisel:
A miniature hacksaw:
The parent firm was made up of an amalgamation of three storied British tool makers: Brades, Nash and Tyzack. Brades Forge dates back in the the late 18th century, making steel and edge tools. It was purchased by William Hunt and Sons, whose initials WHS in those harsh times were also rumoured to stand for "Work Hard or Starve." William Tyzack founded his Sheffield tool-making company in the mid-19th Century, also specializing in edge tools.
|Sell's National Directory
of Large Commercial Houses |
and Buyers' Guide. London: Business Dictionaries Ltd., 1920.
|1957. Source: Grace's Guide to British Industry|
As far as I know, they are the only British tool-making firm which operated a Canadian subsidiary making tools in this country. (As an aside, the daughter of the ex-patriate Brit who first ran the BNT Canada operation was the actress Jackie Burroughs, who went on to win three Geminis for her role as the eccentric school teacher Hetty King in the Canadian TV series the Road to Avonlea, which was based on the quintessentially Canadian novel Anne of Green Gables.)
BNT also offered an unusual Whitworth wrench:
Similar "Surpans" wrenches in metric sizes were also offered by "Peugeot Frères" (or "Peugeot Brothers" of French car fame):
"Surpans" is French ('sur pans") for "on sections" and refers to a "flank-drive" wrench which applies its driving force to the flats of a fastener rather than the corners. "Bte" is an abbreviation of "Brevetés", meaning "Patented". Apparently such wrenches were common at one time in the toolkits of French cars. It looks like BNT made some Whitworth wrenches to the design of this French patent. (In the U.S., the New Britain Machine Company originally patented such a design in the mid 1950's and offered it under the "Nut Master" name. Patented in 1964, Utica-Bonney Tools also offered "Loc-Rite" wrenches using the same principles. Below, from one of their catalogues:
Utica Loc-Rite wrenches and sockets work on a revolutionary principle that prevents leaks, fastener damage, distortion, or false torque readings. Instead of tightening by pressing inward, Loc-Rite wrenches exert pressure tangentially, from the sturdy hex flats around the shoulder of the fitting. Because a Loc-Rite wrench bears on hex flats instead of hex points, there is no damage to fasteners, no out- of-round condition developed even during high-torque wrenching of thin wall fasteners or soft metals. So there is no galling of threads, no undue thread friction, no false torque readings—and no leakage from incorrectly tightened fittings.! Another advantage of Loc-Rite tangential force is that you can use a Loc-Rite wrench to loosen and possibly re-use a fitting so badly damaged that conventional wrenches will no longer turn it! Even if the hex points have been crushed, a Loc-Rite wrench will work, since it snugs deep into hex flats.