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Topic: Steam hammer

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In the News (Thu 18 Jul 19)

  Steam hammer - Open Encyclopedia   (Site not responding. Last check: 2007-10-20)
The steam hammer is a power-driven hammer used in forgings.
The hammer is raised by the pressure of steam injected into the lower part of a cylinder and falls down with a force by removing the steam.
The steam hammer was one of many machine tools invented around this time which allowed for large scale industrialisation and the use of machines to build machines.
www.open-encyclopedia.com /Steam_hammer   (180 words)

 Hammer - Wikipedia, the free encyclopedia
Hammers are often designed for a specific purpose, and so their design varies quite a lot.
The hammer is used in many professions, and is one of the most basic tools along with the knife.
The hammer takes its place in modern weapons in the form of the firearm hammer or firing-pin hammer, a component of a firearm which strikes the percussion-sensitive part of a cartridge causing the firearm to discharge.
en.wikipedia.org /wiki/Hammer   (355 words)

 Creusot Steam Hammer
The introduction of steam-powered forging hammers by French and British engineers of the 1830s led to the building of this impressive hammer at Creusot that delivered blows to shape and strengthen iron and steel objects before forging.
M.M. Schneider and Co., designers of the Creusot Hammers, joined an international family of pioneers in steam hammer building, including Nasmyth of England, Krupp of Germany, and Sellers of the United States.
Steam hammers helped to increase industrial capacity while decreasing the burden on industrial workers throughout the world.
www.asme.org /history/roster/H069.html   (154 words)

 James Nasmyth - Wikipedia, the free encyclopedia
Some years later the subject of steam carriages for use on the roads was arousing a lot of interest and in 1828 James made a complete steam carriage that was capable of running a mile carrying 8 passengers.
When even the largest hammer was tilted to its full height its range was so small that if a really large piece of work were placed on the anvil, the hammer had no room to fall.
Nasmyth subsequently applied the principle of his steam hammer to a pile-driving machine which he invented in 1843.
en.wikipedia.org /wiki/James_Nasmyth   (876 words)

 Nuclear engineering other topics - Steam Hammer
Technically, "steam hammer" is caused by the change in momentum of a large mass of high pressure steam that is suddenly stopped by a fast closing stop valve.
Steam hammer is a problem on some very large central station power plants during a steam turbine trip event or closure of a bypass valve, but in those cases the steam pressure is over 2400 psig and the pipe length is over 200 ft long.
Steam driven slug flow--which is commonly thought of as waterhammer in a steam system--is technically not "water hammer".
www.eng-tips.com /viewthread.cfm?qid=32231   (3853 words)

 An Overview of Pile Driving Equipment -- Part I, Impact Hammers
Impact hammers are hammers which drive the pile by first inducing downward velocity in a metal ram, as shown in Figure 1.
Hammer is raised by a rope running over the top of a framework and extending back to a drum or geared shaft; blow is delivered by the fall of the hammer under influence of gravity.
Many air/steam hammers contain a device to change the upstroke valve turnover point; this is shown in Figure 6, and enables the hammer to operate at two energies, which is especially important during the installation of concrete piles.
www.wingnet.net /~jfwnctm/info/hammers1.htm   (2844 words)

 Chapter 13 My Marriage - The Steam Hammer   (Site not responding. Last check: 2007-10-20)
My Steam Hammer as thus first sketched, consisted of, first, a massive anvil on which to rest the work; second, a block of iron constituting the hammer or blow-giving portion; and, third, an inverted steam cylinder to whose piston-rod the hammer-block was attached.
All that was then required to produce a most effective hammer was simply to admit steam of sufficient pressure into the cylinder, so as to act on the under-side of the piston, and thus to raise the hammer-block attached to the end of the piston rod.
The hammer could be made to give so gentle a blow as to crack the end of an egg placed in a wine glass on the anvil; whilst the next blow would shake the parish or be instantly arrested in its descent midway.
www.naesmyth.com /bio/jn13.htm   (5182 words)

 Basic Steam Theory - Steam Pressure
The temperature of steam at this atmospheric pressure is the same as the temperature of boiling water at atmosperic pressure, which is 100 deg.C. So long as the imaginary spout remains on our boiler, everything is at atmospheric pressure and its specified temperature.
Steam as a means of supplying Power (through engines etc.) has to be approached from a slightly different angle.
Steam Pressures may be given as either "Gauge" pressure or "Absolute" pressure, usually gauge pressure.
www.narrowgauge.iform.com.au /steam4.html   (642 words)

 CHAPTER 15. Steam Hammer Pile-driver.
The same boiler that supplied the steam hammer part of the apparatus served to work the small steam-engine fixed to the platform for its locomotion, and also to perform the duty of rearing the next pile which had to be driven.
The steam was conveyed to the hammer cylinder by the jointed pipe seen in the annexed engraving.
The folding-up steam pipe with which the steam was conveyed from the boiler to the cylinder at all heights, and the way in which the folding joints accommodated themselves to the varying height of the cylinder, was another of my happy thoughts.
www.globusz.com /ebooks/Nasmyth/00000027.htm   (4809 words)

 Piping Design Central: Steam Traps
Steam may be escaping through external or Internal leaks in fittings, valves or controls, from oversized steam traps, or traps that are blowing, leaking or plugged with dirt.
Steam may be lost through uninsulated valves, flanges, sections of steam pipe, or through high back pressure in condensate lines caused by blowing traps.
Steam bubbles moving upward will carry the suspended solids present to the surface of the water; thus it is desirable to have the blow-off pipe extend inward to, or near, the section of upsurge.
www.pipingdesign.com /steamtraps.html   (2516 words)

 [No title]   (Site not responding. Last check: 2007-10-20)
The actual steam hammer itself as a whole didn't weigh forty tons in total but that figure was reference to the weight of the actual hammer head of which it weighed exactly.
The downward force applied by this hammer was many times greater than the forty tons stated (see below for actual downwards stroke) as the piston in the cylinder is driven down by steam from the top which this hammer happened to be the first to use this principle.
The area where this steam hammer once stood is something Ray and a few other people would like to see excavated and examined for any trace's of the immense foundations, or maybe even buried parts of the hammer itself.
members.lycos.co.uk /RoyalArsenal/hammer.htm   (645 words)

 Good Piping Practice Prevents Water Hammer in Steam Systems   (Site not responding. Last check: 2007-10-20)
Water hammer in steam lines is normally caused by the accumulation of condensate.
Steam pipes must be pitched away from the boiler toward a drip trap station.
The steam trap must be capable of completely draining the condensate from the heat exchanger shell under all operating conditions.
www.bellgossett.com /Press/good.htm   (1546 words)

 Water Hammer, Steam, Steam Traps, Fixed Orifice, Energy Savings, Venturi Trap   (Site not responding. Last check: 2007-10-20)
Steam traps drain and remove condensate automatically from the steam lines, and the valves regulate the flow of steam within the system.
Engineering personnel determined that the water hammers were caused by several valves and traps that were not operating as designed and by a condensate collection tank with system leaks and inefficient valves.
Investigators determined that the potential for water hammer was not discussed during the pre-job briefing.
www.steamspecialist.com /doe.htm   (1239 words)

 Steam Hammer - Fluid Flow Hydraulic and Pneumatic, Engineers Edge   (Site not responding. Last check: 2007-10-20)
Steam hammer is similar to water hammer except it is for a steam system.
The speed of sound in steam is approximately one third the speed of sound in
The density of steam is approximately 1600 times less than that of water.
www.engineersedge.com /fluid_flow/steam_hammer.htm   (129 words)

 Welcome to HMC Foundation Equipment   (Site not responding. Last check: 2007-10-20)
Today the Vulcan air/steam driven pile hammers represent a century of development, refinement, and improvement while still adhering to the basic concept of a hammer that is simple to operate, service, and use, and that is basically free of persistent break down thus avoiding expensive and embarrassing delays.
In addition to the characteristics of the hammer itself, the owner is backed by a system of stock ing and servicing dealerships to meet the needs of the contractor whenever and wherever needed.
The cables are threaded through the columns and clamp the hammer together through the use of fittings, the cylinder end having a threaded fitting with a cable nut for simple tightening.
www.hmc-us.com /html/bttmd.html   (1547 words)

 Stuart steam hammer with boiler - stock code 2219   (Site not responding. Last check: 2007-10-20)
A beautifully made steam plant comprising Stuart hammer, gas-fired copper boiler and water tank with hand pump, all mounted in a purpose-built wooden case.
Stuart hammers are rather rare beasts at the best of times, this is the nicest one I've ever had - well made and fitted, with draincocks and cylinder lubricator.
The boiler is a copper multitube affair, gas-fired with a regulator - a great advantage over spirit-firing for something with modest steam requirements like a hammer, where otherwise the boiler sits blowing off on the safety valve all the time.
www.stationroadsteam.co.uk /archive/2219/index.htm   (111 words)

 Tilt Hammer - Steel City Founders - James Nasmyth   (Site not responding. Last check: 2007-10-20)
It was here that he designed and built his famous steam hammer, described as one of the most perfect of artificial machines and noblest triumphs of mind over matter that modern English engineers have yet developed.
Nasmyth invented a steam hammer where the lift was of sufficient height to produce the force of blow required for such an undertaking and where the direction could be controlled to give the necessary accuracy.
The hammer could be used to forge the iron plates for war ships or simply to hammer a nail.
www.tilthammer.com /bio/nas.html   (539 words)

 Dictionary of Terms   (Site not responding. Last check: 2007-10-20)
Water hammer is one of the chief causes of noise in steam heating systems a nd also the major cause of damage to thermostats and floats in traps.
The rapid passage of steam over the surface of the water causes a wave to form as at “B”.
The rapid condensation of the steam in pockets “A” brings the two slugs of water together with a considerable force, which may be telegraphed through the piping.
fhaspapp.ittind.com /homeowners/DictionaryOfTermsDetail.asp?ListID=29   (139 words)

 Chapter Steam Hammer Pile-driver of Autobiography by James Nasmyth
IN 1840 I furnished Sir Edward Parry with a drawing of my steam hammer, in the hope that I might induce him to recommend its adoption in the Royal Dockyards.
I was of opinion that the hammer might prove exceedingly useful in forging anchors and large iron work in those great establishments.
By exhibiting the wide range of power of the steam hammer, these gentlemen were entirely satisfied of its fitness for all classes of forgings for the naval service.
www.bibliomania.com /2/9/70/117/24605/1.html   (700 words)

 Springburn Virtual Museum: Group of workers operating large steam hammer in Cowlairs forge, 1914   (Site not responding. Last check: 2007-10-20)
Parts which had to be forged, such as axles, were made in the smithy or forge, where hand or steam hammers pounded the iron into shape.
In this group of workers operating the large steam hammer in Cowlairs forge, the third man from the right in the photograph was deaf and dumb.
Co-ordination between workers was essential for safe and efficient working, but the noise of the hammer meant that experience and signals were more important than speech.
gdl.cdlr.strath.ac.uk /springburn/spring021.htm   (134 words)

 Steam Water Hammer & Forensic Projects by Wayne Kirsner
Found that the accident was due to condensate which accumulated atop the valve and subsequent water hammer which was initiated by the operator when he attempted to open the valve.
The root cause of the water hammer was not operator error, but the improper original design configuration by the engineer of the trap assembly with respect to the valve..
Investigated cause of steam accident at Metcalf Lumber in Metcalf, Georgia in which a Class 250 cast iron valve exploded killing a worker as he passed by the valve.
www.kirsner.org /pages/forensicResAlt.html   (1944 words)

 [No title]   (Site not responding. Last check: 2007-10-20)
The disadvantage is the size of the machine and that the hammer velocity is no greater than the acceleration of gravity will allow in a short distance.
The steam hammer raises the ram via means of steam pressure and then reverses the force pushing the ram downward faster than gravity alone.
The early hammers were huge and it wasn't until much later that small steam hammers were manufactured.
www.anvilfire.com /jyh/theory.htm   (324 words)

 Steam Water Hammer Accidents and Chilled Water Design Articles by Wayne Kirsner P.E.
In a nutshell, if flooding submerges a high pressure steam main causing insulation to slough off the line or other-wise become ineffective, the heat transfer regime from the surface of the pipe to the surround- ing flood water will likely transition to "nucleate boiling".
Essentially a steam main submerged in flood water becomes a condenser generating hundreds of pounds of condensate per linear foot of pipe.
Steam traps, even though they typically have a safety factor on the order of 25 times that needed to drain a well- insulated system, cannot handle this condensate load.
www.kirsner.org /pages/articlesAlt.html   (891 words)

 In Sight of Rowdy's Weblog: Well, Did He or Didn't He???
In an attempt to save his job and the jobs of his fellow slaves, John Henry protests against the use of the steam hammer and challenges the owner to a contest.
In a duel against the steam hammer, John Henry collapsed and fainted at the end of the all day contest.
Calling for his wife during his last minutes, he questioned if he outbeat the steam hammer in which he did: the steam hammer was at 21 feet and John Henry was at 27 1/2.
blogs.setonhill.edu /ReneeDeFloria/005576.html   (756 words)

 America on the Move | Forging a steel billet
Judging from the size and shape of the billet, these men are in the beginning stages of shaping a new side rod for a locomotive.
Men in these trades transformed steel (usually in the form of new steel in basic shapes provided by steel manufacturers, such as 'rods' or 'billets;' the latter were plain rectangular pieces) into properly shaped parts.
A jig or hoist allowed the foundrymen to move the heavy steel from the furnace to the hammer.
americanhistory.si.edu /onthemove/collection/object_538.html   (424 words)

 Operational Considerations
Steam hammer is similar to water hammer except it is for a steam system.   Steam hammer  is a
Water and steam hammer are not uncommon occurrences in industrial plants.
steam hammer, operators should ensure liquid systems are properly vented and ensure gaseous
www.tpub.com /content/doe/h1012v3/css/h1012v3_67.htm   (208 words)

 Product Specifications
Today the Vulcan air/steam pile hammers represent more than a century of development, refinement, and improvement while still adhering to the basic concept of a hammer that is basically free of persistent breakdown, thus avoiding expensive and embarrassing delays.
These hammers are of more rugged construction for use with stub leads to drive pipe piles for offshore oil and other structures.
One of the most important application of hammer specifications is the wave equation properties of the hammer.
www.wingnet.net /~jfwnctm/specifications.htm   (526 words)

 CHAPTER 13. My Marriage--The Steam Hammer
I sketched for him, then and there, in full size on a board,the elastic packing under the end of the piston-rod, which acted, as I told him, like the cartilage between the bones of the vertebrae, preventing the destructive effects of violent jars.
I was afterwards informed that the blows of my great steam hammer at Woolwich Arsenal were sensibly felt at Greenwich Observatory, about two miles distant.
The slag was driven out during the hammering process.
www.globusz.com /ebooks/Nasmyth/00000025.htm   (5192 words)

Steam hammer, Westinghouse works / American Mutoscope and Biograph Company.
From what appears to be a furnace, a large, glowing block is lifted with the help of a crane over to a table by a group of men.
A hammer comes from above and pounds down on the block repeatedly as the men turn the block several times so that it will acquire a certain shape.
hdl.loc.gov /loc.mbrsmi/westhpp.2206   (255 words)

 Glossary List S page 113
A type of furnace in which fuel is burned and the heat is used to produce steam.
Using pressurized steam to clean an item, such as concrete or brick.
Pile driving hammer, which is both, raised and the drop accelerated by use of steam, which gives it more force than a single acting steam hammer.
www.bobvila.com /GlossaryTerms/List/Word-S-Page-113.html   (245 words)

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