Snowplow

File:TowPLow front view2.JPG rural Interstate]]

A snowplow (also snow plow, snowplough or snow plough) is a device intended for mounting on a vehicle, used for removing snow and ice from outdoor surfaces, typically those serving transportation purposes. Although this term is often used to refer to vehicles mounting such devices, more accurately they are known as winter service vehicles,{{where?|date=June 2022}} especially in areas that regularly receive large amounts of snow every year, or in specific environments such as airfields. In other cases, pickup trucks and front end loaders are outfitted with attachments to fulfill this purpose. Some regions that do not frequently see snow may use graders to remove compacted snow and ice off the streets. Snowplows can also be mounted on rail cars or locomotives to clear railway tracks.

Usage

File:Sidewalk plow.JPG, Ontario, Canada]]

File:Skid-steer plow.webp plow]]

File:Tractor with bulldozer blade.jpg

A snowplow works by using a blade to push snow to the side to clear it from a surface. Modern plows may include technology to make it easier to perform the work and stay on the road. These include Global Positioning System receivers, head-up displays and infrared cameras.{{CN|date=October 2024}}

Large custom snowplows are commonly used at major airports in North America. These plows have oversized blades and additional equipment like a rotating sweeper broom (sometimes called jetblade) and blowers at the rear of the plow.{{CN|date=October 2024}}

For sidewalks and narrow lanes small tractor plows (tracked or wheeled) are often used within Canada and the United States.{{CN|date=October 2024}}

When snowfall accumulates above a certain height, snowplow operators may be seen clearing the main arteries first (designated as snow routes), in some cases for the exclusive use of emergency vehicles.{{CN|date=October 2024}}

Underbody scrapers are sometimes mounted on vehicles in residential and urban settings, operating on principles similar to a road grader, but allowing greater weights and speed along with the carriage of a road treatment applicator.{{CN|date=October 2024}}

Newer technology has allowed the use of articulated plow systems which can clear multiple divided highway lanes simultaneously; jurisdictions adopting this technology include the provinces of Alberta, British Columbia, New Brunswick, Ontario and Quebec in Canada,{{cite web |author=Rml/Rgl |url=http://www.towplow.com/12.html |title=Canadian users? |publisher=towplow.com |date=2012-04-11 |access-date=2013-03-07 |url-status=dead |archive-url=https://web.archive.org/web/20131209080658/http://towplow.com/12.html |archive-date=2013-12-09 }} along with 21 states (Colorado, Connecticut,{{Cite web|url=http://portal.ct.gov/en/Office-of-the-Governor/Press-Room/Press-Releases/2016/11-2016/Gov-Malloy-and-DOT-Debut-New-Snow-Plows-That-Can-Clear-Two-Highway-Lanes-in-One-Single-Pass | title=Gov. Malloy and Dept. of Transportation Debut New Snow Plows That Can Clear Two Highway Lanes in One Single Pass, The Office of Governor Dannel P. Malloy, Nov 29, 2016.|website=CT.gov - Connecticut's Official State Website | archive-url=https://web.archive.org/web/20180308041508/http://portal.ct.gov/en/Office-of-the-Governor/Press-Room/Press-Releases/2016/11-2016/Gov-Malloy-and-DOT-Debut-New-Snow-Plows-That-Can-Clear-Two-Highway-Lanes-in-One-Single-Pass | archive-date=2018-03-08}} Delaware, Indiana, Kansas, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Montana, New Hampshire, New York, North Dakota, Ohio, Oregon, Pennsylvania, Tennessee, Utah and Wisconsin) in the US.{{cite web |url=http://www.modot.mo.gov/newsandinfo/District0News.shtml?action=displaySSI&newsId=13566 |title=MoDOT News Release |publisher=Modot.mo.gov |date=2007-10-23 |access-date=2013-03-07 |archive-date=2012-02-22 |archive-url=https://web.archive.org/web/20120222034155/http://www.modot.mo.gov/newsandinfo/District0News.shtml?action=displaySSI&newsId=13566 |url-status=dead }}{{Cite web | title=Office of Maintenance - Iowa Department of Transportation | url=http://www.iowadot.gov/maintenance/TowPlows.html | archive-url=https://web.archive.org/web/20101026061705/http://www.iowadot.gov:80/maintenance/TowPlows.html | access-date=2024-12-26 | archive-date=2010-10-26}}{{Cite web|url=https://blog.mass.gov/transportation/massdot-highway/mega-plows-ready-for-snow-ice-season/|archive-url=https://web.archive.org/web/20130722172314/http://blog.mass.gov/transportation/massdot-highway/mega-plows-ready-for-snow-ice-season/|url-status=dead|archive-date=July 22, 2013|title="Mega Plows" Ready for Snow, Ice Season}}

History

File:Snöplog 1909.jpg (1909)]]

File:Snowplow 1960 (JOKAMT2Ma68-1).tif (1960)]]

File:Snowplow in Jyväskylä.JPG, Finland (2012)]]

File:Snöröjning - Ystad-2018.jpg, Sweden February (2018)]]

The first snow plows were horse-drawn wedge-plows made of wood. The earliest reference found by the Oxford English Dictionary was written in 1792 in a description of New Hampshire:{{cite web |url=https://www.etymonline.com/word/snow-plow |title=snow-plow (n.) |author= |date= |website=www.etymonline.com |publisher=Douglas Harper |access-date=March 3, 2021}}

{{blockquote|When a deep snow has obstructed the roads, they are in some places opened by an instrument called a snow plough. It is made of planks, in a triangular form, with two side boards to turn the snow out on either hand.{{cite book |last=Belknap |first=Jeremy |author-link=Jeremy Belknap |date=1813 |title=The History of New-Hampshire: Volume III |url=https://books.google.com/books?id=_G1WVO-O7C0C&pg=PA60 |location=Boston MA |publisher=Bradford and Read |page=60 }}}}

With the advent of rail travel and later, the automobile, a number of inventors set about to improve existing snow plows. In the US, the "snow-clearer" is said to have been patented as early as the 1840s,{{cite web|url=https://nsidc.org/cryosphere/snow/removal.html|title=Snow Removal|work=nsidc.org}} for railways. The first snow plow ever built specifically for use with motor equipment was in 1913. It was manufactured by Good Roads Machinery in Kennett Square, PA. and was designed to meet the exacting requirements outlined by engineers of the New York City Street Cleaning Bureau.{{cite book|last=New York City Department of Sanitation Arc. 1881 -1931|title=Street Clearing Bureau|publisher=NYC|pages=book 6 page 58}} Good Roads is therefore unofficially credited as the originator of the modern snow plow, though their horse drawn steel blade road graders were used to clear roads of snow as early as the company's founding in 1878 under their original name American Road Machinery.{{cite journal|journal=Historical Construction Equipment Association|volume=1/101/331|title=American Road Machine Company 1893 - 1895|pages=2}} Good Roads patented the first four-wheel grader in 1889 thus making it the first pull grading apparatus patented in the United States.{{cite web|last=Berry|first=Tom|title=Iron Works: The Design of a Pull Grader|date=31 May 2012|url=http://www.constructionequipment.com/iron-works-design-pull-grader|publisher=constructionequipment.com|access-date=2012-05-31}} Unlike most early snow plow manufacturers, Good Roads continues to manufacture snow removal equipment today under the name Good Roads Godwin, now located in Dunn, North Carolina. In the early 1920s Good Roads often advertised in The American City magazine that "...three out of every four snow plows in use throughout the whole United States are Good Roads Champions." By the mid-1920s Good Roads was manufacturing snow plows of various shapes and sizes for use on a wide variety of motorized equipment. Other snow plow manufactures began to follow suit as motorized plows were proven more efficient than other methods of snow removal.{{CN|date=October 2024}}

Carl Frink of Clayton, New York, USA was also an early manufacturer of truck-mounted snowplows. His company, Frink Snowplows, now Frink-America, was founded by some accounts as early as 1920.{{cite news| url=http://findarticles.com/p/articles/mi_qa3718/is_200006/ai_n8917320 | work=CNY Business Journal | title=After 80 Years, Clayton Plow Plant Shuts Down | year=2000}} For the winter of 1919, Carl H. Frink, owner of a tire and machine shop in Clayton (New York), manufactured and equipped a bus with a steel V-blade snowplow for Fred I. Dailey's Clayton to Watertown bus line. In 1920, Frink equipped a Linn halftrack with a snowplow and side-blades for F.W. Carpenter's Black River Bus Lines and started his snowplow business. The Linn Co. immediately started to equip their halftracks with snowplow and heavily promoted their superior traction; they dominated the eastern market until the 30s when the halftracks were supplanted by the much faster four-wheel drive trucks.{{Cite web| title=Linn Manufacturing Corp. (aka Linn Tractor Co.) | url=http://flinflonheritageproject.com/wp-content/uploads/wppa-source/album-67/1038957.pdf | archive-url=https://web.archive.org/web/20221205131405/http://flinflonheritageproject.com/wp-content/uploads/wppa-source/album-67/1038957.pdf | archive-date=2022-12-05}}

In 1923, the brothers Hans and Even Øveraasen of Norway constructed an early snowplow for use on cars. This proved to be the start of a tradition in snow-clearing equipment for roads, railways{{cite web

|title = Canadian Railway Hall of Fame -

|work = Rotary snow plow (2002)

|year = 2006

|url = http://www.railfame.ca/sec_ind/technology/en_2002_RotarySnowPlow.asp

|archive-url = https://archive.today/20121206001220/http://www.railfame.ca/sec_ind/technology/en_2002_RotarySnowPlow.asp

|url-status = dead

|archive-date = 2012-12-06

|access-date = 2008-10-03

}} and airports, as well as the foundation of the company Øveraasen Snow Removal Systems.{{CN|date=October 2024}}

Today snow plows are produced by numerous companies around the world and available for different kinds of vehicles such as service trucks, pickup trucks, SUVs and ATVs. They are installed using model specific or universal hardware and mount to the frame of the vehicle to ensure durable connection. There are manual, power and hydraulic operating snow plows. All necessary mounting hardware usually comes in set with a plow. Snow plow blades are available in various sizes depending on a vehicle type. Service trucks usually use a blade sized {{convert|96|in|m|abbr=on}} and more. Common blade size for pickup trucks and full size SUVs is {{convert|78|-|96|in|m|abbr=on}}. Smaller ATV snow plow blades are {{convert|48|-|78|in|m|abbr=on}} wide.{{CN|date=October 2024}}

Railway snowplows

File:Snow plough train II.JPG plow mounted on a passenger train in Lower Austria]]

In many countries, railway locomotives have small snowplows permanently attached to their bogies, which also serve as pilots. With others, the snowplow forms part of the obstacle deflector below the bufferbeam. Bolt-on versions also exist, and these attach to the bufferbeam or front coupler. However, larger snowplows exist, which tend to be conversions rather than purpose-built vehicles. Steam locomotive tenders, large diesel locomotive bogies and various freight vehicles have been used, with the snowplow body mounted on the original frames. They are one-ended, with conventional coupling equipment on the inner end. In Canada purpose-built snowplow cars (based on a box car with a cupola above and behind the blade) are in use in areas where significant snow falls (especially in Western Canada, Newfoundland and Northern Ontario). These cars were influenced by the Russell Plow from the United States and used in Canada in the 1880s.{{cite web|url=http://www.google.ca/imgres?imgurl=http://members.kos.net/sdgagnon/sp06.jpg&imgrefurl=http://members.kos.net/sdgagnon/sp.html&usg=__uYf0p8o1Q2sSEjXddDgodh7BePI=&h=465&w=549&sz=63&hl=en&start=7&zoom=1&tbnid=avjOqguxqS4HzM:&tbnh=113&tbnw=133&ei=XpywT5jsLerB0AHr06HEDA&prev=/search%3Fq%3DCNR%2Bsnowplows%26um%3D1%26hl%3Den%26client%3Dfirefox-a%26hs%3DMIp%26sa%3DN%26rls%3Dorg.mozilla:en-US:official%26tbm%3Disch&um=1&itbs=1 |title=Google Image Result |publisher=Google.ca |access-date=2013-03-07}} Most of the Russell-type plows have been retired for smaller custom-built railplow or snow blades attached to hopper cars or locomotives.{{CN|date=October 2024}}

Conventional operation may see one or two locomotives running together with a snowplow at either end. This enables a snow clearance train to reverse direction quickly if it gets stuck. Alternatively, a single locomotive with bogie plows can act as a self-propelled snowplow by running light engine.{{CN|date=October 2024}}

File:Cntrain7331.JPG.]]

Via Rail, among other railways, has integrated plow blades with the front pilots of their locomotive fleet to clear thinner accumulations of snow as trains run.{{cite web|url=http://www.canadianrailwayobservations.com/croarchives/aug2012via16.htm |title=VIA Rail Canada |publisher=Canadian Railway Observations |access-date=2013-03-07}}

Self-propelled on-track steel and rubber tired hy-rail equipment can remove snow from railroad tracks. The Pettibone Speed Swing loader and similar machines, both with and without hyrail wheels, can be fitted with a large-capacity snow bucket or a wedge plow to clear the tracks. Ballast regulators, machines designed to shape the profile of the crushed stone ballast that anchors the track in place, can be used without modification or refitted with purpose-built snow blades, blowers and wings to clear snow from the right of way.{{CN|date=October 2024}}

Locomotive-propelled Jordan ditcher/spreaders are still sometimes used to plow especially deep snow in the US on the former Wisconsin Central railroad. These machines carry large main plows and hydraulic- or air-powered articulating wings to push snow far from the tracks, sometimes past the next adjacent track, to facilitate clearing snow from yards and sidings. These machines can create ditches and plow the tracks clear of loose material during maintenance operations. Russell plows are still in service at some locations, with large-front wedge plows and shorter hinged air-powered wings suitable only for plowing snow.{{CN|date=October 2024}}

References

External links

Digital Public Library of America. [http://dp.la/search?page_size=100&subject=Snowplows Items related to snowplows], various dates
[https://www.youtube.com/watch?v=SCgf56POaz0 Seven-minute video about the history of snowplows in the U.S. state of Maine]

Plow

Category:Commercial vehicles

Category:Articles containing video clips

Category:Steel objects