A rotary snowplow is a piece of railroad snow removal equipment with a large circular set of blades on its front end that rotate to cut through the snow on the track ahead of it. The precursor to the rotary snowplow was the wedge snowplow.
The wedge plow or Bucker plow was first developed by railroad companies to clear snow in the American West. The wedge plow forces snow to the sides of the tracks and therefore requires a large amount of force due to the compression of snow. The wedge plow is still in use today in combination with the high-maintenance rotary snowplow.
The plow has a smooth surface so snow will slide over the plow face rather than accumulating to be pushed along as an increasing mass. Wooden plows were carefully constructed of individually fitted boards and painted frequently to maintain a smooth surface. Steel plows can be sprayed with water in sub-freezing temperatures to form a smooth layer of ice on the plow surface.
2nd: The plow has a horizontal wedge to lift snow above the level of snow accumulation beside the track. A cutting edge low above the rails usually employed a cast iron or steel leading edge for durability against ice and for weight to discourage the tendency of the wedge to climb over hard-packed snow causing derailment by lifting the wheels off the rails. Under most conditions, the tendency to climb was reduced by weight of snow on the upper side of the wedge, and by downward reaction force accompanying upward acceleration of lifted snow.However, this downward snow loading may be absent when a plow first strikes a snow drift or packed snow face where the plow train has previously stalled. Before making a running start against such conditions, prudent crews would dig into the lower edge of the drift or snow face creating a notch to receive and guide the leading edge of the horizontal wedge.
I spent 3 weeks travelling across the Alps, in France, Italy, Switzerland, Austria and Germany. This video presents the amazing places and landscapes I discovered along the journey. Welcome to some of the most beautiful lakes and mountains in the world…
Shot in 4K with: iPhone X and DJI Mavic Pro Drone.
Locations: Lago di Braies, Lago di Sorapis, Seceda, Lago di Resia, Seiser Alm, Dolomites, Riffelsee, Bachalpsee, Tre Cime di Lavaredo, Lauterbrunnen, Lago di Carezza, Hallstatt, Berchtesgaden, Riffelsee, Furka Pass…
This “Cruising on Rail” episode is produced by Cruising on Rail media productions, aired by Amazon Prime and documents the classic Golden Eagle Trans-Siberian Express journey by private train.
The 15-day all-inclusive journey between Moscow and Vladivostok, is the only way to complete the worlds longest single service railway journey in luxury, comfort and style.
Click here to view the itinerary in full; www.goldeneagleluxurytrains.com/journeys/trans-siberian-express/
With 24 years experience of operating private rail journeys on this momentous railroad, our expertise and knowledge is unrivalled and we are proud to have an exceptionally loyal and professional Tour Management team to take care of our guests.
Фильм о парках и о достопримечательностях Петергофа. alinaka1974.wixsite.com/petkino
Авторы: Кац Леонид, Ерушев Виктор, Осипов Дмитрий, Суравов Александр.
О местах, которые мало известны даже тем, кто считает себя знатоком петергофских красот. Начинается рассказ с Ропшинских высот, находящихся в 25 километрах от знаменитых парков Петергофа. Здесь три века назад Петр I и его сподвижник Василий Туволков искали естественные источники воды, которые могли бы «питать» будущие фонтаны.
Усадьба Кусково была фамильной резиденцией Шереметьевых — древнего рода, оставившего глубокий след в истории России. Окрестные деревни — Выхино, Вешняки, Жулебино — тоже принадлежали графской фамилии.
По местам, где разворачивались события сколь романтические, столь и трагические: беззаветная любовь графа Николая Шереметьева и крепостной актрисы Прасковьи Жемчуговой, проведет экскурсию программа «Нераскрытые тайны».
Документальный сериал «Красуйся, град Петров!». Серия 3/43. Петергоф. Большой дворец. Зодчие Иоганн Браунштейн, Жан Батист Леблон, Франческо Бартоломео Растрелли. Режиссер: Михаил Трофимов. Производство: ГТРК «Санкт-Петербург». 2014 г.