Friday, February 27, 2009
Industrial knobs are small, usually round, devices that are designed for use on industrial machinery, electronic components, and metal cabinetry. They are usually made out of metal, plastic, or rubber and are available in a variety of sizes, colors, and finishes. Some industrial knobs are knurled or included a textured, rubber grip for positive handling. Others include an integral skirt and provide a numerical scale or indicators with dots, lines, or arrows. Illuminated knobs are well-suited for low-light applications. Devices with latches can be secured in position and do not require the use of a key. Knobs with locks are designed to prevent unauthorized use. Industrial knobs that meet U.S. military specifications (MIL-SPEC) are also available.
There are many types of industrial knobs. Adjustable knobs provide positive, repeatable clamping force and lock for positive retraction. Ball knobs are often used with manually-actuated lever and shafts. Bar knobs are turned by hand, manually tightened, and then tightened again by inserting a bar between the prongs. Clamping knobs are used in valve controls and to adjust machine tools. Instrument knobs are designed for electric and electronic equipment. Ergonomic and multi-functional lever knobs are available in a wide variety of shapes and sizes. Push/pull knobs have enlarged heads and tapered shanks for pushing, pulling, or lifting. Spinner knobs have a flat head and handle, or a hole that allow users to spin the knob with one finger. Thumbscrew knobs are tightened by thumb. Industrial knobs with two to six arms and lobes are commonly available. Three-armed or triangular devices are known as trigon knobs. Other types of industrial knobs include pushbutton knobs and mushroom knobs.
Mounting specifications for industrial knobs include bore diameter and mounting style. Bore diameter is the inside diameter (ID) of the insert, or the outside diameter (OD) of the stud. Mounting styles include bushings, collets, molded threads, threaded holes or inserts, push-on or plain holes, and through holes with counter bores. Bushings are inserted into bores to limit the size of the opening, resist abrasion, and serve as a guide. Collets consist of an outer body and internal hardware that grips the shaft 360° to ensure a secure fit. Collets are installed with a nut driver and require a separate top cap. Industrial knobs that contain a threaded insert or have threads molded into the bore opening are also available. Push-on devices feature a plain hole as a bore. With through hole or counter-bore mounting, the hole extends through the height of the handle and is accompanied by a counter bore on top.
Sunday, February 22, 2009
A recreational vehicle park (RV park) or caravan park is a place where people with recreational vehicles can stay overnight, or longer, in alloted spaces known as pitches. They are also referred to as campgrounds, though a true campground also provides facilities for tent camping; many facilities calling themselves “rv parks” also offer tent camping or cabins with limited facilities.
Pitch facilities may include:
* Drinking water connection
* Sewer connection
* AC power connection. (Usually rated by capacity such as 16, 20, 30 or 50 amperes).
* Television connection (relevant to local area standards)
* Telephone connection (rare outside North America)
* Hotspot (Wi-Fi)
Site facilities may include:
* Gift shop
* Convenience store
* Dump station
* Picnic tables
* Barbecue area
* Exercise equipment
* Swimming pool
Monday, February 16, 2009
I am started to implement ads from 12buzz.com. I hope this works out ok.. I am already in some financial trouble but I could end up in more if things don’t work out - the fall of the prices of shares have left me in a great loss..
Sunday, February 15, 2009
Hmm, my desktop is getting old. The Pentium D 805 with Intel D102 motherboard is not quite able to push things forward.. The things that were keeping it alive and kicking were the 1.5 GB RAM and nVidia 9600GT graphics card..
I hear that the new Intel i7’s packs a big punch but the cost is certainly having a bigger punch. Probably I will wait till things cool down a bit - wait for Intel to reduce the prices and a cheaper chipset.
Saturday, February 14, 2009
The Westgate is a massive medieval gatehouse in Canterbury, Kent, England. Built of Kentish ragstone in about 1377, it is still extremely well-preserved and is one of the city’s most distinctive landmarks. There is a museum inside the gatehouse which was opened in 1906. It is the last survivor of Canterbury’s seven medieval gates. The road still passes through it, and there is just enough room for a double-decker bus to pass beneath.