The Lombard Steam Log Hauler, patented 21 May 1901, was the first successful commercial application of a continuous track for vehicle propulsion. [1] [2] [3] The concept was later used for military tanks during World War I and for agricultural tractors and construction equipment following the war.
Alvin Orlando Lombard was a blacksmith building logging equipment in Waterville, Maine. He built 83 steam log haulers between 1901 and 1917. [4] These log haulers resembled a saddle-tank steam locomotive with a small platform in front of the boiler where the cow-catcher might be expected.
A steering wheel on the platform moved a large pair of skis beneath the platform. A set of tracked vehicle treads occupied the space beneath the boiler where driving wheels might be expected. The locomotive cylinders powered the treads through a gear train. The log haulers mechanically resembled 10- to 30-ton snowmobiles with a top speed of about 4.5 miles per hour (7.2 km/h). [5]
While the ground was covered with snow and ice, a log hauler could tow a string of sleds filled with logs. Each sled train required a crew of four men. An engineer and fireman occupied the cab behind the boiler, and a steersman sat on the platform in front. A conductor rode on the sleds with a bell-rope or wire to signal the crew in the cab. [6] The earliest log haulers pulled three sleds, and later models were designed to pull eight sleds. Each train carried 40,000 to 100,000 board-feet of logs. The record train length was said to be 24 sleds with a total length of 1,650 feet (500 m). [4]
The greatest operational difficulty was on downhill grades where ice allowed the sleds to accelerate faster than the engine. Jack-knifing sleds pushed many log haulers into trees, and most photos of log haulers show rebuilt cabs and bent ironwork on the boiler and saddle tank. Hay was spread over the downhill routes in an effort to increase friction under the sleds, but hungry deer sometimes consumed the hay before the train arrived.
The steersman was regarded as the hero of the crew. In sub-freezing temperatures down to 40 degrees below zero, he sat in an exposed position in front of the train. Sparks flying out of the boiler stack above him would sometimes set his clothing on fire as avoidance of trees required his full attention and effort turning the large iron steering wheel. Some steersmen earned enough money to purchase fire-resistant leather clothing. Some log haulers had a small roofed shelter built on the steering platform, but the shelter limited the steersman's ability to jump clear when collision became inevitable, and he would require luck to avoid injury from the following trainload of logs. [7]
Berlin Mills Company was one of the larger woods operators to use Lombard log haulers. They purchased one machine in 1904, and then purchased two more to maintain reliable operation when one needed repairs. The company maintained a single 6-mile-long (10 km) iced haul road in Stetson, Maine, by nightly application of water from a sprinkler sled, and strung a telephone line with frequent call boxes to dispatch sled trains over that road. The company estimated those three Lombard log haulers did the work of 60 horses. [8]
The first two Lombard log haulers were used near Eustis, Maine, in 1901 prior to construction of the Eustis Railroad. These early machines had an upright boiler and were steered by a team of horses. [3] Most of the Lombard log haulers were used in Maine and New Hampshire. A few were used in Michigan, Wisconsin and Russia. Lombard began building 6-cylinder gasoline-powered log haulers in 1914, produced a more powerful "Big 6" later, and built one Fairbanks-Morse Diesel engine hauler in 1934. The internal combustion log haulers (called Lombard tractors) were less powerful than the steam log haulers; and resembled a stake body truck on a skis and tracks chassis. The steam-powered haulers are thought to have been used as late as 1929. [9] At least ten of the Lombard tractors were preserved at Churchill Depot as recently as the 1960s. [10]
Antarctic Mount Lombard was named in recognition of the Lombard Log Hauler as the first application of knowledge of snow mechanics to trafficability. [11] The Lombard Steam Log Hauler was designated a National Historic Mechanical Engineering Landmark in 1982 following nomination by the American Society of Mechanical Engineers. [12]
Lombard Steam Log Haulers have been preserved and restored in:
Continuous track or tracked treads are a system of vehicle propulsion used in tracked vehicles, running on a continuous band of treads or track plates driven by two or more wheels. The large surface area of the tracks distributes the weight of the vehicle better than steel or rubber tyres on an equivalent vehicle, enabling continuous tracked vehicles to traverse soft ground with less likelihood of becoming stuck due to sinking.
A half-track is a civilian or military vehicle with regular wheels at the front for steering and continuous tracks at the back to propel the vehicle and carry most of the load. The purpose of this combination is to produce a vehicle with the cross-country capabilities of a tank and the handling of a wheeled vehicle.
The M1 was a class of steam locomotive of the Pennsylvania Railroad (PRR). It was a class of heavy mixed-traffic locomotives of the 4-8-2 "Mountain" arrangement, which uses four pairs of driving wheels with a four-wheel guiding truck in front for stability at speed and a two-wheel trailing truck to support the large firebox needed for sustained power. Although built for both passenger and freight work, they spent most of their service lives hauling heavy high-speed freight trains. Many PRR men counted the M1 class locomotives as the best steam locomotives the railroad ever owned.
A camelback locomotive is a type of steam locomotive with the driving cab placed in the middle, astride the boiler. Camelbacks were fitted with wide fireboxes which would have severely restricted driver visibility from the normal cab location at the rear.
The International Railway of Maine was a historic railroad constructed by the Canadian Pacific Railway (CPR) between Lac-Mégantic, Quebec, and Mattawamkeag, Maine, closing a key gap in the railway's transcontinental main line to the port of Saint John, New Brunswick.
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The Bangor and Aroostook Railroad was a United States railroad company that brought rail service to Aroostook County in northern Maine. Brightly-painted BAR boxcars attracted national attention in the 1950s. First-generation diesel locomotives operated on BAR until they were museum pieces. The economic downturn of the 1980s, coupled with the departure of heavy industry from northern Maine, forced the railroad to seek a buyer and end operations in 2003. It was succeeded by the Montreal, Maine and Atlantic Railway.
A steam donkey or donkey engine is a steam-powered winch once widely used in logging, mining, maritime, and other industrial applications.
A screw-propelled vehicle is a land or amphibious vehicle designed to cope with difficult terrain, such as snow, ice, mud, and swamp. Such vehicles are distinguished by being moved by the rotation of one or more auger-like cylinders fitted with a helical flange that engages with the medium through or over which the vehicle is moving. They have been called Archimedes screw vehicles by the US military, where they are classified as a type of marginal terrain vehicle (MTV). Modern vehicles called Amphirols and other similar vehicles have specialised uses.
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Mount Lombard is the highest peak dominating the mountain mass whose southern extremity is Cape Sobral, Graham Land, Antarctica, and surmounting Mundraga Bay to the west. It was mapped from surveys by the Falkland Islands Dependencies Survey (1960–61), and was named by the UK Antarctic Place-Names Committee for American engineer Alvin O. Lombard of the Lombard Steam Log Hauler Company, Waterville, Maine, who designed some of the earliest successful over-snow tractors, the first application of knowledge of snow mechanics to trafficability, 1901–13.
Alvin Orlando Lombard (1856-1937) was the American inventor of the track-wheeled vehicle. First patented in 1901, the Lombard Steam Log Hauler revolutionized the movement of harvested logs through the woods and set the stage for every snowmobile, tank and bulldozer ever built.
The Gull was an international passenger train service between Boston, United States, and Halifax, Canada, which operated from 1930 to 1960. Journey time was approximately 24 hours. Westbound trains left Halifax shortly after breakfast and crossed the Canada–United States border in the late evening, as eastbound trains were leaving Boston's North Station to cross the border about dawn. Travel was over the Boston and Maine Railroad from Boston to Portland, Maine, then over the Maine Central Railroad to the border between Vanceboro, Maine, and Saint Croix, New Brunswick, then over the Canadian Pacific Railway to Saint John, New Brunswick, and over the Canadian National Railway to Halifax.
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