Surface grinding wheel - Tree color wheel.
Surface Grinding Wheel
- Surface grinding is used to produce a smooth finish on flat surfaces. It is a widely used abrasive machining process in which a spinning wheel covered in rough particles (grinding wheel) cuts chips of metallic or non metallic substance from a workpiece, making a face of it flat or smooth.
- A process and machine tool to grind flat and/or square surfaces. In a common machine tool, the workpiece is mounted to a table that sweeps back and forth in a pendulum-like motion.
- Producing a plane surface by grinding.
- A circular object that revolves on an axle and is fixed below a vehicle or other object to enable it to move easily over the ground
- a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)
- A circular object that revolves on an axle and forms part of a machine
- change directions as if revolving on a pivot; "They wheeled their horses around and left"
- steering wheel: a handwheel that is used for steering
- Used in reference to the cycle of a specified condition or set of events
Wings & Wheels 2011 845
Hawker Hunter - Miss Demeanour
G-PSST was originally built for the Royal Air Force as a mark F.4, XF947, back in 1956. Part of the first production batch of F.4s, XF947 was initially delivered to No.5 Maintenance Unit at Kemble in Gloucestershire before entering active service with No.3(Fighter) Squadron at RAF Geilenkirchen, Germany, as part of 2 ATAF (Allied Tactical Air Force). After a short period of time she was re-allocated to 229 Operational Conversion Unit at RAF Chivenor in Devon.
When XF947?s operational career with the RAF was over, she was transferred to the Fleet Air Arm at Arbroath (HMS Condor) as a Ground Instructional Airframe (number A2568) before being classed surplus to requirements and placed up for disposal.
So it was that she was purchased by Hawker Siddeley Aviation in 1971 as G-9-317 for conversion to a Mk58A as part of a contract for the Swiss Air Force.
Re-serialled as J-4104, she was delivered to the Swiss Air Force on 2nd February 1972 and spent most of her remaining military career as a target tug carrying the Swedish MBV-2S winch which was carried under the starboard wing.
In 1996 J-4104 was retired from military service for a second time, was sold to a private owner and ferried to the British Aerospace airfield at Dunsfold in Surrey, with a total of just 1659 hours on the airframe!
In 1997 she was acquired by Jonathon Whaley’s company, Heritage Aviation Developments Ltd, registered as G-PSST and was ferried across to Hurn Airport near Bournemouth to undergo restoration by Jet Heritage Ltd. Restoration was completed in mid-’98 and she was towed across the airfield to AIM Aviation for surface finishing at the end of the year. This was completed in January 1999 and she looked then just as you see her today.
Grinding the Rails----HD Video
Sony HX1---This special train had numerous grinding wheels, working to smooth down the rails, so more surface area would contact the wheels. This is especially important on upgrades. I've never seen this being done before.
Imagine my reaction, when I saw this noisy apparition coming round the bend, spewing sparks, flame and smoke. It seemed like it might be that often-mentioned "West-bound Freight", that symbolically carries the departed to their next destination. Only this one gave me the impression that it might be going to that other place.
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