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High school students attending the UM Engineering Camp, sponsored by Mechanical Engineering and the CMSE, construct and launch air rockets at Brevard Hall. Photo by Nathan Latil/Ole Miss Communications
Clemson seniors Tyler Henson, Andrew Spencer, Andrew Johnston, and Paul Black - all mechanical engineering majors - work on an automated guided vehicle they are developing as part of a class project. (Photo by Ken Scar)
Chetan Bhagat and Jaey Gajera together at Channel V 'Gumrah' Book Launch.
LIVE : Instagram.com/JaeyGajera
#GumrahBook #Gumrah #IraTrivedi #JaeyGajera #ChannelV #ChetanBhagat — at Bandra, Mumbai.
~*Photography Originally Taken By: www.CrossTrips.Com Under God*~
Steam donkey, or "donkey engine" is the common nickname for a steam-powered 'hoist' widely used in past logging operations, though not limited to logging. They were also found in the mining, maritime, and nearly any other industry that needed a powered winch.
This article concentrates on the self-contained equipment used for logging.
Design and usage
Steam donkeys acquired their name from the animals they replaced. They were classified by their type (simplex, duplex, logging engine, 3-drum, 2-drum, etc.) and their different uses (high-lead yarder, ground-lead yarder, roader, snubber, incline hoist, etc.)
A steam donkey comprised at least one powered winch around which was wound hemp rope or (later) steel cable, and usually a boiler. They were usually equipped with skids, or sleds made from logs, to aid them during transit from one "setting" to the next. The larger steam donkeys often had a "donkey house" (a makeshift shelter for the crew) built either on the skids or as a separate structure. Usually a water tank, and sometimes a fuel oil tank was mounted on the back of the sled. In rare cases, steam donkeys were also mounted on wheels. Later steam donkeys were built with multiple horizontally-mounted drums/spools, on which were wound heavy steel cable instead of the original rope.
[edit] Method of operation
This describes the use of a steam donkey for logging operations. In the simplest setup, a "line horse" would carry the cable out to a log in the woods. The cable would be attached, and, on signal, the steam donkey's operator (engineer) would open the regulator, allowing the steam donkey to drag or "skid" the log towards it. The log was taken either to a mill or to a "landing" where the log would be transferred for onward shipment by rail, road or river (either loaded onto boats or floated directly in the water).
If a donkey was to be moved, one of its cables was attached to a tree, stump or other strong anchor, and the machine would drag itself forward.
History
John Dolbeer of Crescent City, California, invented the donkey engine in August of 1881. The patent (number: 256553) was issued April 18, 1882. On Dolbeer's first model, a 150-foot, 4½ inch manila rope was wrapped several times around a gypsy head (vertically mounted spool) and attached at the other end to a log.[1][2]
The invention of the internal-combustion engine led to the development of the diesel-powered tractor crawler, which eventually put an end to the steam donkey. Though some have been preserved in museums, very few are in operating order. A great number still sit abandoned in the forests, rusting in the spot where they dropped their fires not so long ago.
A non-operational steam donkey accompanied by a plaque explaining the history of the machine is on permanent display at Grizzly River Run, an attraction at Disney's California Adventure.
[edit] Other uses
Steam donkeys were also found to be useful for powering other machines such as pile drivers, slide-back loaders (also known as slide-jammers), and cherry-pickers (a sled-mounted crane used for loading logs, that a grading crew had cut down, onto railroad cars).
An auxiliary engine on a sailing craft (which does propel the vessel) is still sometimes informally known as "the donk".
Higgins Laboratories, center of mechanical engineering studies at Worcester Polytechnic Institute (WPI).
My wife's father, Peter K. Bingham, graduated from WPI with a Bachelor of Science Degree in Mechanical Engineering in 1961.
Assistant professor Ashish Deshpande's ReNeu Robotics Lab focuses on developing robotic technologies that will assist therapists in delivering physical rehabilitation. Additionally, the lab is making big strides in developing a human-like robotic hand that could one day serve as a prosthetic device.
20/06/2015
Mechanical Engineering Event, University of Surrey
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Assistant professor Ashish Deshpande's ReNeu Robotics Lab focuses on developing robotic technologies that will assist therapists in delivering physical rehabilitation. Additionally, the lab is making big strides in developing a human-like robotic hand that could one day serve as a prosthetic device.
Braden Gandee, 12, receives an installation of an addition to his wheelchair that a University of Michigan ME450 team designed for him that will allow for him to play soccer with his brother and classmates at school.
Gandee was born with cerebral palsy and has been limited to a wheelchair, often running over the soccer ball instead of pushing it forward when he tried to play with his brothers and classmates. A team of U-M engineers in ME450, a capstone senior course for undergraduates, designed an addition that will allow Gandee to dribble and kick and a soccer ball.
Photo: Joseph Xu, Michigan Engineering Communications & Marketing
Braden Gandee, 12, receives an installation of an addition to his wheelchair that a University of Michigan ME450 team designed for him that will allow for him to play soccer with his brother and classmates at school.
Gandee was born with cerebral palsy and has been limited to a wheelchair, often running over the soccer ball instead of pushing it forward when he tried to play with his brothers and classmates. A team of U-M engineers in ME450, a capstone senior course for undergraduates, designed an addition that will allow Gandee to dribble and kick and a soccer ball.
Photo: Joseph Xu, Michigan Engineering Communications & Marketing
This is an image of 107 from University of Pennsylvania LJS 22: Trattato di varie cose attenenti a guerra, molini, aque, pesi, mechaniche fortezze, et altro, a document on paper, from Italy, dated to 1687.
LJS 22 is an illustrated treatise in 4 books on machinery, addressing machines for attacking fortified cities, the use of waterwheels in mills and manufacturing, and the construction of defensive fortifications, followed by an alphabetical index.
Access this manuscript at openn.library.upenn.edu/Data/LJSchoenbergManuscripts/html....
OPenn is a website that offers easy access to free cultural works from Penn Libraries and other institutions. Access these collections and learn more at openn.library.upenn.edu.
Metadata is copyright ©2015 University of Pennsylvania Libraries and is licensed under a Creative Commons Attribution 4.0 International License.
Assistant professor Ashish Deshpande's ReNeu Robotics Lab focuses on developing robotic technologies that will assist therapists in delivering physical rehabilitation. Additionally, the lab is making big strides in developing a human-like robotic hand that could one day serve as a prosthetic device.
Assistant professor Ashish Deshpande's ReNeu Robotics Lab focuses on developing robotic technologies that will assist therapists in delivering physical rehabilitation. Additionally, the lab is making big strides in developing a human-like robotic hand that could one day serve as a prosthetic device.
Braden Gandee, 12, receives an installation of an addition to his wheelchair that a University of Michigan ME450 team designed for him that will allow for him to play soccer with his brother and classmates at school.
Gandee was born with cerebral palsy and has been limited to a wheelchair, often running over the soccer ball instead of pushing it forward when he tried to play with his brothers and classmates. A team of U-M engineers in ME450, a capstone senior course for undergraduates, designed an addition that will allow Gandee to dribble and kick and a soccer ball.
Photo: Joseph Xu, Michigan Engineering Communications & Marketing
A seating chart is studied during an experiment to understand how many infectious aerosol particles others in a classroom expect to inhale under various mitigation scenarios inside 1311 EECS on North Campus in Ann Arbor, MI on Monday, May 17, 2021.
There's a lot we don't know about how these particles behave indoors, but a core conundrum is that while aerosols do not stay within six feet of their source, they're also not uniformly distributed throughout a room.
Using a smoke machine and particle spectrometers, similar to work they've done for the U-M Dental School and Blue Bus, these experiments explore the impacts of different mitigation measures including occupancy limits, masks and increased ventilation.
Photo: Robert Coelius/University of Michigan Engineering, Communications & Marketing
Braden Gandee, 12, receives an installation of an addition to his wheelchair that a University of Michigan ME450 team designed for him that will allow for him to play soccer with his brother and classmates at school.
Gandee was born with cerebral palsy and has been limited to a wheelchair, often running over the soccer ball instead of pushing it forward when he tried to play with his brothers and classmates. A team of U-M engineers in ME450, a capstone senior course for undergraduates, designed an addition that will allow Gandee to dribble and kick and a soccer ball.
Photo: Joseph Xu, Michigan Engineering Communications & Marketing
Braden Gandee, 12, receives an installation of an addition to his wheelchair that a University of Michigan ME450 team designed for him that will allow for him to play soccer with his brother and classmates at school.
Gandee was born with cerebral palsy and has been limited to a wheelchair, often running over the soccer ball instead of pushing it forward when he tried to play with his brothers and classmates. A team of U-M engineers in ME450, a capstone senior course for undergraduates, designed an addition that will allow Gandee to dribble and kick and a soccer ball.
Photo: Joseph Xu, Michigan Engineering Communications & Marketing
Enthusiastic students, teachers and staff of Clemson University pose for photos during an event in front of the Clemson Library April 8, 2015. Clemson University International College of Automotive Research (CU-ICAR) held a social media contest where they gave out T-shirts to anyone who posed with their banner and uploaded the photo to thier social media accounts with tag #deeporange. The person who got the most likes and shares of their post wins a trip to the GM world headquarters in Detroit for the unveiling of Deep Orange, the concept car construted from the ground up by Clemson automotive engineering students. (Photo by Ken Scar)
Coast Guard Academy cadets present designs ranging from medical devices designed to prevent pressure ulcer complications to propulsion shaft anti-roll bars designed for use on a heavy icebreaker such as the Coast Guard Cutter Polar Star for the Mechanical Engineering department’s capstone projects, April 26, 2017.
These designs not only provide cadets with a solid set of skills, which can be utilized in the fleet, but also could make positive impacts on individuals outside of the Coast Guard.
Official Coast Guard photos by Petty Officer 3rd Class Nicole Barger.
Enthusiastic students, teachers and staff of Clemson University snag some free T-shirts during an event in front of the Clemson Library April 8, 2015. Clemson University International College of Automotive Research (CU-ICAR) held a social media contest where they gave out the shirts to anyone who posed with their banner and uploaded the photo to thier social media accounts with tag #deeporange. The person who gets the most likes and shares of their post wins a trip to the GM world headquarters in Detroit for the unveiling of Deep Orange, the concept car construted from the ground up by Clemson automotive engineering students. (Photo by Ken Scar)
The Institution of Mechanical Engineers was founded 1847 at Birmingham and moved to London in 1877 then to its current location in 1898. The Institution advocates for and promotes the development of all forms of mechanical engineering and the interchange of information and ideas between professional organisations, schools, universities and the public. The Institution also holds many mechanical engineering competitions with the awarding of annual prizes for different fields of study.
www.imeche.org/Home (The Institution of Mechanical Engineers website).
www.imeche.org/about-us/imeche-engineering-history/instit... (Their history).
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Enamels: 3 (dark blue, light blue & red).
Finish: Gilt.
Material: Brass.
Fixer: Pin.
Size: 1 3/8” in diameter (about 35mm).
Process: Die stamping.
Makers: Thomas Fattorini Ltd, Hockley St, Birmingham (1924-1929).
Source: livinghistories.newcastle.edu.au/nodes/view/53687
This photo appeared in the The University of Newcastle Bulletin, 1/92, February 28, 1992.
The text was :
"Newcastle's two most prominent mechanical engineers of the past quarter-century, Emeritus Professor Alex Carmichael and Professor Alan Roberts were made Members of the Order of Australia (AM) in the Australia Day Honours.
Both were honoured for their contributions to education.
Professor Carmichael previously awarded the CBE, came to the University as a senior lecturer in 1957. He was Head of the Department of Mechanical Engineering from 1967 to 1974, and Dean of the Engineering Faculty for two periods.
Apart from his academic and research achievements, Professor Carmichael has served the community as President of the hunter District Water Board from 1974 to 1982, and as a Director of TUNRA, the Newcastle Permanent Building Society and the Hunter Development Board.
Professor Roberts, Director of the School of engineering, studied engineering at Sydney Technical College while apprenticed at Cockatoo Dock, then became a professional officer at the University of New South Wales.
In 1958, he became a lecturer at Wollongong and was an Associate Professor of Mechanical Engineering when he left to replace Professor Carmichael as Head of Mechanical Engineering at this University.
Professor Roberts has always maintained an interest in the handling of bulk solids, and is Director of the Institute for Bulk Materials Handling, Director of TUNRA and Director of the Hunter Technology Development Centre."
This photograph is from the records of the Department of Mechanical Engineering - Mr Robert Scobie (Professional Officer).
It was scanned from a photograph in the University's historical photographic collection held by Cultural Collections at the University of Newcastle, NSW, Australia.
If you have any information about this photograph, please contact us.
Assistant professor Ashish Deshpande's ReNeu Robotics Lab focuses on developing robotic technologies that will assist therapists in delivering physical rehabilitation. Additionally, the lab is making big strides in developing a human-like robotic hand that could one day serve as a prosthetic device.
Rachel Schwind, mechanical engineering PhD candidate, demonstrates operation of the rapid compression facility in studying siloxane combustion chemistry in the G.G. Brown building on North Campus at the University of Michigan on October 4, 2019.
Siloxanes are an environmentally benign family of chemicals entering our waste streams through everyday products. These chemicals affect the combustion of biogas harvested from landfills and wastewater treatment facilities, prompting engine manufacturers to impose limits on the use of siloxane in their systems.
Margaret Wooldridge, Arthur F. Thurnau Professor of mechanical engineering, worked with Schwind to study how siloxane affects the combustion of biogas in order to take advantage of its positive combustion properties and prevent any negative effect on engine performance.
Photo: Evan Dougherty/University of Michigan Engineering
Collagen fibrils at notched side are delaminated, aligning close to the tension direction after loading. The loading direction is shown by the arrow.
Enthusiastic students, teachers and staff of Clemson University share their photos to social media sites during an event in front of the Clemson Library April 8, 2015. Clemson University International College of Automotive Research (CU-ICAR) held a social media contest where they gave out T-shirts to anyone who posed with their banner and uploaded the photo to thier social media accounts with tag #deeporange. The person who got the most likes and shares of their post wins a trip to the GM world headquarters in Detroit for the unveiling of Deep Orange, the concept car construted from the ground up by Clemson automotive engineering students. (Photo by Ken Scar)