I haven't posted Kinsey Brothers logging photos in a while

https://www.tractorbynet.com/forums/threads/half-track-dump-trucks.424344/

Linn half track dumptrucks used to make damns in the Tennessee valleys in 1942

For nearly two decades the mighty Linn ‘HafTrak’ was without peer. Approximately 2,500 examples of the ‘torque monster from Morris’ were produced between 1917 and 1948

The Linn proved popular with loggers, miners, contractors and municipalities, serving double duty as a road-building machine during the summer months and a snowplow during the winter. Under ideal conditions company literature claimed the Linn could travel up a 50% incline and some customers, particularly Barrie, VT’s Vermont Marble Co. stated their Linns regularly carried a 20-ton load up a 22% grade.

When equipped with skis a snow-going Linn road train, (1 or 2 Linn tractors towing from 10 to 16 log sleds) could increase productivity 10-fold, with numerous North American logging and mining outfits testifying to their efficiency in Linn advertising. One Linn snow train, operated by the Hudson Bay Mining & Smelting Co., Ltd., pulled a 120 ton load from their supply depot to its Flin Flon, Manitoba/Saskatchewan, outpost

Linns were also popular in warmer environs, a number of units were exported to the Middle East, as well as the Panama Canal Zone where they were used for canal, roadway and railway maintenance. During the 1930s Linns equipped with 5-10 ton rock bodies were used by contractors engaged in the construction of the Bonneville, Chickamauga, Guntersville and Grand Coulee Dams and helped construct the Canadian Oil (Canol) oil pipeline in Alaska.

From 1929-on Linn was owned by American LaFrance

https://www.shorpy.com/node/27092?size=_original#caption
http://www.coachbuilt.com/bui/l/linn_mfg/linn_mfg2.htm

Both a reminder that ConExpo is in March of 2020, at the Las Vegas Convention Center, and a look at a 1945 truck mounted Gradall excavator

The No. 3 Gradall, to be shown at the Alamo Group’s N10801 booth, still runs, with 90 percent of its parts original. It features a Linn carrier and a rebuilt Waukesha engine and track drive.

“The control valves, hydraulic cylinders, hydraulic pumps and boom assembly are all restored to working order,” the company says.

The showcasing of No. 3 is part of Gradall’s 75th anniversary celebration.

The company was founded by brothers Ray and Koop Ferwerda in Cleveland. They were contractors who developed fully hydraulic truck-mounted excavators. All of the company’s construction equipment continues to be manufactured in the United States.



the first minute of this video is a time capsule of the 1940s and 50s road construction


2020 Conexpo-Con/Agg will begin on Tuesday, March 10 and ends on Saturday, March 14

https://www.equipmentworld.com/gradall-to-showcase-1945-excavator-vr-simulator-at-conexpo-2020/
http://www.gradall.com/

the Linn tractor truck (thanks Denis!)

https://cdm16694.contentdm.oclc.org/digital/collection/p16694coll65/id/3402/rec/184

a car transporter I've never seen before

“The outstanding feature of the transport is the use of hydraulic lifts permitting the load to be handled by one man. The design of the carrier accommodates n additional unit over the conventional four-car transport, using a forward power unit which carries three cars and an integrated trailer which holds two cars. Assisting on the technical developments of the new transport, in addition to the designers, was David E. Loushay, general manager of the Linn Coach and Truck Division.

“The front-engine, front-wheel drive carrier is of the cab-over-engine type, using the inter changeable Linn power train. A replacement engine can be installed in one hour. The power train is an integrated unit of front wheels, drive shaft, transmission and engine. In case of breakdowns, the front of the truck is jacked up and a new unit installed after removing only ten bolts.”

https://www.facebook.com/profile.php?id=100010369631996

The five car transport of revolutionary lines and mechanical design has undergone a five-hundred-mile run fully loaded with new cars. Early tests established top speeds of 70 miles an hour and road speeds of 50 to 60 miles an hour. The transport is being constructed by the LaCrosse Trailer Corp. of Wisconsin from designs created by Brooks Stevens Associates, Milwaukee Industrial design firm.

Unfortunately auto transporters believed that the complicated drive system of the Linn power-plant was not robust enough for everyday use and the vehicle never entered into production.

Thanks Steve!