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Northern Tool + Equipment (commonly referred to as Northern Tool) is a manufacturer and retailer of light industrial equipment and do-it-yourself supplies.Founded in 1981 as Northern Hydraulics, the company was officially renamed to Northern Tool + Equipment and is the owner of several private label brands including NorthStar, Powerhorse, Klutch, Strongway, Ultra-Tow, Roughneck, Gravel Gear ...
The poles can be varied at a ratio of 1:2 and thus the speed can be varied at 2:1. [ 7 ] [ 8 ] [ 9 ] Normally, the electrical configuration of windings is varied from a delta connection (Δ) to a double star connection (YY) configuration in order to change the speed of the motor for constant torque applications, such as the hoists in cranes .
First European depiction of a piston pump, by Taccola, c.1450. [2] Irrigation is under way by pump-enabled extraction directly from the Gumti, seen in the background, in Comilla, Bangladesh. One sort of pump once common worldwide was a hand-powered water pump, or 'pitcher pump'.
Variable Speed Fire Pump Controllers were invented and released with a UL Listing for fire pump service in 2003 by Master Control Systems, Inc. [1] [2] Paragraph 10.5.5 in the 2003 edition of NFPA-20 recognized Variable Speed as an accepted method for operating the fire pump. Then in the NFPA-20 2007 edition, section 10.10 was added to clarify ...
Native American drilling turquoise with a pump drill. [2] To use, the shaft is first turned by hand so that the cord wraps around the top part, as much as possible, and the board is as the highest position. A smooth downward pressure is exerted on the board, causing the shaft to rapidly spin. Once the bottom is reached, the pressure is relieved.
A Hurst tool. See hydraulic spreader. J-Tool A device made of rigid, heavy gauge wire and designed to fit through the space between double-swinging equipped with panic hardware. [9] Jet-Axe A Jet-Axe was a shaped charge of two to six ounces of RDX, and was used for forcible entry [10] and ventilation in the 1960s and 1970s. Jet siphon
[2] BS 7671 is also used as a national standard by Mauritius, St Lucia, Saint Vincent and the Grenadines, Sierra Leone, Singapore, Sri Lanka, Trinidad and Tobago, Uganda, Cyprus, and several other countries, which base their wiring regulations on it. The latest version is BS 7671:2018+A3:2024 (18th Edition, amendment 3) issued in 2024.
Reading Blue Mountain and Northern 2102 (historically known as Reading 2102) is a preserved T-1 class 4-8-4 "Northern" type steam locomotive.Originally built by the Baldwin Locomotive Works in March 1925 as an "I-10sa" 2-8-0 "Consolidation" type locomotive for the Reading Company, No. 2102 was rebuilt by the Reading's own locomotive shops as a 4-8-4 "Northern" in September 1945, and it was ...