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Grinnell grooved products have a 10-year limited warranty for most products, except for the G-MINE line of products, which are warranted for six months. The company’s fire protection products comprise rigid and flexible couplings, full and short pattern grooved elbows and tees, and a variety of valves and accessories. [2]
The clevis is a U-shaped piece that has holes at the end of the prongs to accept the clevis pin. The clevis pin is similar to a bolt, but is either partially threaded or unthreaded with a cross-hole for a split pin. A tang is a piece that is sometimes fitted in the space within the clevis and is held in place by the clevis pin.
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Sheet metal screws make excellent fasteners for attaching metal hardware to wood because the fully threaded shank provides good retention in wood. Twinfast screw A Twinfast screw is a type of screw with two threads (i.e. a twin-start screw ), so that it can be driven twice as fast as a normal (i.e. single-start) screw with the same pitch. [ 4 ]
Grinnell (surname) Grinnell Mutual, an Iowa, US-based reinsurance company; Grinnell, Minturn & Co, a 19th-century American shipping company; Grinnell (automobile), an electric car made in Detroit, Michigan between 1910 and 1913. Grinnell fish, otherwise known as a Bowfin; Grinnell Mechanical Products and SimplexGrinnell, subsidiaries of Tyco ...
Grinnell improved Parmalee's first practical automatic sprinkler and patented his own Grinnell sprinkler in 1882. [5] Continual improvements resulted in the glass disc sprinkler in 1890. With slight modifications, this sprinkler head is still used in modern fire sprinkler systems ; sprinklers are even called le Grinnells in France. [ 6 ]
The company was founded ca. 1815 as Fish, Grinnell & Co. (the senior partner of which had the memorable, if improbable, name of Preserved Fish (1766–1846)); the Grinnell was his cousin Joseph Grinnell, one of six sons of a shipper and merchant in New Bedford, Massachusetts.
The Spaulding Manufacturing Company is a complex of historic buildings located in Grinnell, Iowa, United States. Vermont native H.W. Spaulding settled in Grinnell in 1876 to open a blacksmith and wagon repair shop. [2] Not long after, he started to manufacture wagons. Because of his modest success he entered into a series of partnerships over ...