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The UP 6 AM Job switches some tank cars in Des Plaines. A pair of UP GP15's is a great way to kick off a day of foaming.
Heading from the double track to single track, NS 295 heads south through Helenwood past the Southern Railway Searchlights
I had never shot any of the NIRC switchers until then. I was waiting at the Halsted Street station for much of the afternoon, hoping to catch the last Z CSLT train from Canal Street, when this ballast train came up from the wye, then backed up the Air LIne. I unfortunately had to leave before the last Bird came through, so this was my consolation prize.
NIRC 5 SW1500
Ballast Train
The engineer and conductor from the M-SUPMIN assist the switch tender clear the switch of the 29.2 inches of snow that fell in Cass Lake today.
After ten years the beltsander ( Ferm FBS-1000) stopped as the job wasn't quite done. Bit of a rush job as a friend was coming round to sort out the rattle in his (car's) exhaust. Gosh & Darn-it.
Problem was the trigger grip switch contacts were all carboned up and not passing power. Reassembly of the moving parts of the switch was indeed the reverse of disassembly but would have been so much easy with slim nimble oriental fingers as at the maker's factory. Until the black plastic cover of the switch goes on it's all held together by gravity and stiction despite one spring being in compression and the other in extension.
So there it is working, one final dismantle for a slight fine tune and PING the smallest spring makes a bid for freedom into the darkest of all dark recesses.
Cue interim solution - it's mostly used as a mini table sander anyway.
Of course back in Blighty one would just pop down to the local maplins and buy one off the shelf and save half a morning.
hey ho.
Ah, I see Mr Ferm will sell me one for just €5,50.
Oh! Plus €2,20 Vat and €8,25 postage. That's going something for a 50 gram item.
That's a quarter of the way and beyond to a new one - and then once that decision has been reached one is just a short step away from upgrading to a 4 inch Makita and spending a couple of hundred. Lets see how long the interim solution holds.....
otro talentaso mexicano el pekas con un switch heelflip en xalapa veracruz..
esa foto del tour caminos de villa el cual fui invitado y del cual salieron muy buenas ftos que por aqui veran
Bill Brown (University of Delaware Cooperative Extension) Don Groff (E.E. Shenk & Sons), and Paul Spies (Chester River Association) on site to observe the process as 75 tons of baled switchgrass, a native cereal grain, are delivered to a Delmarva poultry farm. The grain, which was cut into one inch pieces using a RotoChopper, is being evaluated as poultry bedding material. Photo by Michele Walfred
A membrane switch or more precisely a standard membrane switch assembly is comprised of several flexible layers that make up a complete switch package. This assembly can have as few as one active area (key or button) to several dozen active areas. A membrane panel switch is an interface between man and machine, which enables an operator to communicate with equipment, instrumentation, or machinery. Subsequently, this allows the operator to communicate with the device, issuing commands and/or performing other operations. The operator presses the membrane control panel when he or she wants to control the device.
Construction of Membrane Switch
Graphic Overlay – PET/PC is usually the overlay material of choice due to its fantastic chemical resistance and flex property. Komkey offers membrane switch customized design services such as digital printing, screen-printing, or apply both methods to ensure you get the right colors, textures and finish your design requirements.
Adhesive Overlay – This adhesive layer sticks the membrane overlay to the top circuit layer, and is usually an acrylic adhesive. The material is the same as the fourth layer. Only the thickness is maybe different according to the actual situation.
Top Circuit Layer – The material of this layer is specific. It is a 0.1mm thickness thermostable PET film printed with conductive silver ink and also dielectric oil, which used for fastening metal domes.
Circuit Spacer – This layer separates the top circuit from the bottom circuit so that the touch membrane remains normally break until the membrane switch keypad is pressed. The circuit spacer is a polyester spacer with adhesive on both sides.
Lower Circuit Layer – This layer is a 0.1mm-0.25mm thickness thermostable PET film printed with conductive silver ink and also dielectric oil. This layer terminates as a flexible tail that serves as an interconnector to controller PCBs or other IC.
Rear Adhesive – This adhesive layer bonds the entire membrane switch to the product surface, housing, or to a rigid support panel. Komkey, a membrane switch keypad supplier, can use the proper adhesive type and thickness to bond your membrane switch to your equipment.
Membrane Switch Specification
Mechanical Properties:
Life Expectancy
Flat type ≥ 5 million times,
Tactile type ≥ 1 million times
Operation ForceFlat Type 57-284g ,Tactile Type 170-397g
Dome Rebound Time≤6ms
Tail Bending Performance≤180 °
Switch StrokeFlat 0.1~0.5mm,Tactile 0.6~1.5mm
Vibration20G's max.
Thickness0.7~1.5 mm
Electrical Properties:
Rated Voltage≤50V DC
Rated Current≤ 100mA
Operating Power≤1W
Insulation Resistance≥100MΩ (250V DC)
Loop Resistance
10Ω ~ 2kΩ
(Depending on the design)
Contact Resistance
0.5 ~ 5Ω
(Depending on wire length and the materials)
Wire Lead Resistance<1Ω/cm
Base Material Voltage Withstand1500V DC
Environmental Properties:
Operation Temperature-40°C to +80°C (-40°to 176°F)
Storage Temperature-40°C to +85°C (-40°to 185°F)
Atmospheric Pressure86 ~ 106 kPa
Humidity+40°C, 90%~95%RH for 240 Hours
Why Choose Our Membrane Switch?
Our Membrane Switch Pad Advantages
Beautiful appearance, Variety color printing.
Small size, light in weight, good tactility, Long life span.
moisture-proof, dustproof, waterproof, anti-corrosion, and erosion of harmful gases proof.
Easy to operate, intuitive, safe and reliable
Cost-effective, convenient installation
Komkey is one of the reliable membrane switches manufacturers offering personalized membrane keypad design service
Customized specification is available, the Smaller volume can be accepted.
Customized logo/Brand/Contact way can be printed in the overlay for advertisement.