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Portable sawmills are sawmills small enough to be moved easily and set up in the field. They have existed for over 100 years but grew in popularity in the United States starting in the 1970s, when the 1973 oil crisis and the back-to-the-land movement had led to renewed interest in small woodlots and in self-sufficiency .
A sawmill (saw mill, saw-mill) or lumber mill is a facility where logs are cut into lumber. Modern sawmills use a motorized saw to cut logs lengthwise to make long pieces, and crosswise to length depending on standard or custom sizes (dimensional lumber). The "portable" sawmill is simple to operate. The log lies flat on a steel bed, and the ...
Henry Clay Frick (December 19, 1849 – December 2, 1919) was an American industrialist, financier, and art patron.He founded the H. C. Frick & Company coke manufacturing company, was chairman of the Carnegie Steel Company and played a major role in the formation of the giant U.S. Steel manufacturing concern.
New Bogie Repair and Lifting Shed and NTL (New Trial Line) Shed were constructed in Lower Parel Shop in 1984. New RAC Shed was constructed in 1993. New RAC Shed was constructed in 1993. The oldest structure still available in the workshop premises is the Senior Railway Institute which has a foundation stone dated 1882.
Each blade was set at a fixed width meaning each log was cut identically, regardless of flaws. This design was not energy efficient and around 1860 sawmills began to adopt the more efficient circular saw. In the 1870s, the limitation of log size due to the radius of the circular saw was improved with the introduction of the double circular saw ...
The original railway works in York, the Queen Street Works, York had been established in 1842, and carried out locomotive, carriage and wagon work. [1] The wagon works was a separate building in the north-east of the site, near Queen Street. [map 1] [2] The building was extended westward in 1864, to give a production capacity of 100 wagons per ...
H type carriages are numbered in the 101 - 200 series. Sets were issued to traffic with three types of carriage: BCH economy class with conductors van: 121–131; 132-133 long; 134 and 135 seat 10 more people but have a smaller van area
A green chain is a type of lumber delivery system that can be used in a sawmill. The green chain's purpose is to collect the final product of the mill and move it at a controlled rate to be graded and sorted. [1] In the 19th and early to late 20th century, the green chain was used by people.