Car Corner

Process
Typically, the material to be cut is securely clamped or held in a vise, and the saw is advanced slowly across it. In variants such as the table saw, the saw is fixed and the material to be cut is slowly moved into the saw blade. As each tooth in the blade strikes the material, it makes a small chip. The teeth guide the chip out of the workpiece, preventing it from binding the blade.
Characteristics
Cutting is by teeth on the edge of a thin blade
The cut has narrow kerf and good surface finish
Cuts are straight and relatively accurate
The saw usually leaves burrs on the cut edge
Saw setting should be done geomatrically.
Invention
Various claims have been made as to who invented the circular saw:
A common claim is for a little known sailmaker named Samuel Miller of Southampton, England who obtained a patent in 1777 for a saw windmill. However the specification for this only mentions the form of the saw incidentally, probably indicating that it was not his invention.
Gervinus of Germany is often credited with inventing the circular saw in 1780
Walter Taylor of Southampton had the blockmaking contract for Portsmouth Dockyard. In about 1762 he built a saw mill where he roughed out the blocks. This was replaced by another mill in 1781. Descriptions of his machinery there in the 1790s show that he had circular saws. Taylor patented two other improvements to blockmaking but not the circular saw. This suggests either that he did not invent it or that he published his invention without patenting it (which would mean it was no longer patentable).
Another claim is that it originated in Holland in the sixteenth or seventeenth century. This may be correct, but nothing more precise is known.
The use of a large circular saw in a saw mill is said to have been invented in 1813 by Tabitha Babbit, a Shaker spinster, who sought to ease the labour of the male sawyers in her community.
The Barringer, Manners and Wallis factory in Rock Valley Mansfield, Nottinghamshire also claims to be the site of the invention.
Types of circular saw
Allis-Chalmers B with a portable sawmill setup
In addition to hand-held circular saws (see below), different saws that use circular saw blades include:
Miter saws (or Chop saw or Cut-off saw)
Radial arm saws
Saw mills
Table saws
Panel saws
Biscuit joiners
Pendulum saw
Brushcutter
Cold saws
Flip Over Saws (the Combination of a Compound Miter and Table saw)
Sawmill blades
Portable sawmill circular saw blade about 2 foot diameter.
Originally, circular saws in mills had smaller blades and were used to resaw lumber after it passed through an “up and down” (muley or sash) saw leaving both vertical and circular saw marks on different sides of the same piece. These saws made it more efficient to cut small pieces such as lath. After 1813 or 1822 saw mills use large circular saws, up to nine feet (2.97 m) in diameter. Large saws demand more power than up-and-down saws and did not become practical for sawing timbers until they were powered by steam engines. They are either left or right-handed, depending on which side of the blade the plank falls away from. Benching determines which hand the saw is. Saws of this size typically have a shear pin hole, off axis, that breaks if the saw is overloaded and allows the saw to spin free. The most common version is the ITCO (insert tooth cut-off) which has replaceable teeth. Sawmill blades are also used as an alternative to a radial arm saw.
Cordwood saws
Cordwood saws, also called buzz saws in some locales, use blade of a similar size to sawmills. Where a sawmill rips (cuts with the grain) a cordwood saw crosscuts (cuts across the grain). Cordwood saws can have a blade from 20 to more than 36 inches (910 mm) diameter depending on the power source and intended purpose. Buzz saws are used to cut long logs (cordwood) and slabs (sawmill waste) into pieces suitable for home heating (firewood).
Most cordwood saws consist of a frame, blade, mandrel, cradle, and power source. The cradle is a tilting or sliding guide that holds logs during the cutting process. Some cordwood saws are run from a belt from a farm tractor power takeoff pulley. Others are equipped with small gasoline engines or even large electric motors as power sources. The mandrel is a shaft and set of bearings that support and transfer power to the blade. The frame is a structure that supports the cradle and blade at a convenient working height.
Cordwood saws were once very popular in rural America. They were used to cut smaller wood into firewood in an era when hand powered saws were the only other option. Logs too large for a cordwood saw were still cut by hand. Chainsaws have largely replaced cordwood saws for firewood preparation today. Still, some commercial firewood processors and others use cordwood saws to save wear and tear on their chainsaws. Most people consider cordwood saws unsafe and outdated technology.
Hand-held circular saws
The term circular saw is most commonly used to refer to a hand-held electric circular saw designed for cutting wood, which may be used less optimally for cutting other materials with the exchange of specific blades. Circular saws can be either left or right-handed, depending on the side of the blade where the motor sits and which hand the operator uses when holding a saw.
Blades for timber are almost universally tungsten carbide tipped (TCT). High speed steel (HSS) blades are also available. The saw base can be adjusted for depth of cut. Adjusting the depth of cut helps minimize kickback. The saw base can also be adjusted to tilt up to 50 degrees in relation to the blade.
The saw can be designed for the blade to mount directly to the motor’s driveshaft (known colloquially as a sidewinder), or be driven indirectly by a perpendicularly-mounted motor via worm gears, garnering considerably higher torque (Worm-drive saws).
The worm-drive portable circular saw was invented in 1923 by Edmond Michel. In 1924 Michel formed a partnership with Joseph Sullivan, and together they started the Michel Electric Handsaw Company, with the sole purpose of manufacturing and marketing the saw invented by Michel. The company later renamed itself Skilsaw Inc., which today is a subsidiary of Robert Bosch GmbH. Portable circular saws are often still called Skilsaws or Skil saws. Its successor is still sold by Skil as the model 77. To get around the Skil patents, Art Emmons of Porter-Cable invented the direct-drive sidewinder saw in 1928. Recently smaller cordless circular saws with rechargeable batteries have become popular.
Cold saw
Main article: Cold saw
Cold saw(ing) machines are circular saws that are used in many metal cutting operations. The saw blades used are quite large in diameter and operate at low rotational speeds, and linear feeds. There are three common types of blades used in circular saws; solid-tooth, segmental tooth, and the carbide inserted-tooth. The circular saw is typically fed into the workpiece horizontally, and as the saw advances into the material, it severs the material by producing narrow slots. The material is usually held in place during the cutting operation by means of a vice. The chips produced by cutting are carried away from the material by both the teeth of the blade as well as the coolant or other cutting fluid used.
References
^ Todd, Robert; Allen, Dell; Alting Leo (1994). Manufacturing Processes Reference Guide. Industrial Press. p. 28. 
^ English Patent Specification no. 1152 (1777); and see Inventors website
^ Carolyn C. Cooper, “The Portsmouth System of Manufacture” Technology and Culture 25(2) (1984), 182195; C. Singer et al., History of Technology IV (1958), 437; Norman Ball, ‘Circular Saws and the History of Technology’ Bulletin of the Association for Preservation Technology Vol. 7, No. 3. (1975), pp. 7989.
^ Ball, ‘Circular Saws’ quoting M. Powis Bale, Woodworking Machinery. Its Rise, Progress and Construction.
^ John O. Curtis, “The Introduction of the Circular Saw in the Early 19th Century”. Bulletin of the Association for Preservation Technology Vol. 5, No. 2 (1973), pp. 162189; also Inventors website and Wood News
External links
History of the portable circular saw
Hand held power saws – Has a section on handling kickback
Circular Saw Safety Procedures
NIOSH Power Tools Sound Pressure and Vibrations Database
New York City Construction Quiet Vendor List
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Types of tools
Cutting tools
Blade  Bolt cutter  Broach  Ceramic tile cutter  Chisel  Coping saw  Countersink  Diamond blade  Diamond tool  Drill bit  Endmill  File  Fretsaw  Froe  Glass cutter  Grater  Hacksaw  Hand saw  Knife  Milling cutter  Miter saw  Pipecutter  Plane  Razor  Reamer  Saw  Scalpel  Scissors  Slasher  Surform  Switchblade  Tap and die  Tool bit  Utility knife  Water jet cutter  Wire cutter  Wire stripper
Garden tools
Adze  Axe  Billhook  Bow saw  Cultivator  Earth auger  Edger  Garden fork  Garden hose  Garden trowel  Hedge trimmer  Hoe  Hori hori  Irrigation sprinkler  Lawn aerator  Lawn mower  Lawn sweeper  Leaf blower  Loppers  Machete  Mattock  Pickaxe  Pitchfork  Plough (plow)  Post hole digger  Pruning shears (secateurs)  Rake  Roller  Rotary tiller  Scythe  Sickle  Spade  Splitting maul  String trimmer
Hand tools
Block plane  BNC inserter/remover  Brace  Bradawl  Breaker bar  Broom  Brush  Card scraper  Caulking gun  Clamp  Crimping pliers  Crowbar  Fish tape  Hammer  Hawk  Hex key  Locking pliers  Mallet  Miter box  Nut driver  Pipe wrench  Pliers  Punch  Punch down tool  Putty knife  Ratchet  Scratch awl  Screwdriver  Sledgehammer   Sponge  Squeegee  Staple gun  Stitching awl  Torque wrench  Trowel  Upholstery hammer  Wrench (spanner)
Machine tools
Broaching machine  Drill press  Gear shaper  Grinding machine  Hobbing machine  Jig borer  Lathe  Metalworking lathe  Milling machine  Planer  Screw machine  Shaper  Turret lathe
Power tools
Angle grinder  Band saw  Belt sander  Blow torch  Chainsaw  Chop saw  Circular saw  Concrete saw  Crusher  Cutting torch  Die grinder  Drill  Glue gun  Grinding machine  Heat gun  Impact wrench  Jigsaw  Jointer  Nail gun  Radial arm saw  Random orbital sander  Reciprocating saw  Rotary tool  Router table  Sander  Scroll saw  Soldering gun  Soldering iron  Steam box  Table saw  Thickness planer  Welding  Wood router  Wood shaper
Measuring &
Alignment tools
Caliper  Jig  Micrometer  Pencil  Plumb-bob  Ruler  Sliding T bevel  Spirit level  Square  Tape measure
Other
Antique tools  Halligan bar  Kelly tool  Ladder  Thau claw  Toolbox  Vise  Workbench
Categories: Cutting machines | Metalworking cutting tools | Saws | Woodworking hand-held power tools | Woodworking machinesHidden categories: Articles needing additional references from September 2008 | All articles needing additional references

Sometimes people skipping meals in order to loose weight or just doesn’t have appetite of eating. These simple skipping meals can develop into eating disorder which is can be dangerous. There are several eating disorders such as anorexia, bulimia, usually involves extreme emotions, attitudes, weight and food issues and many others.

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The best solution for people who have drug addiction problem is drug rehab. By getting drug rehab, they can get the best help for recovering their condition from this problem. Choosing a good drug rehab is not easy. You might find many drug rehabs that available around your area. But you must understand that each of those drug rehabs offers different quality of services, facilities and price. One of the options is Luxury Drug Rehab.

People who don’t have limited budget can choose to get this kind of drug rehab. It is because they need to spend more money to get professional medical personnel, enjoy great facilities and keep their privacy safe. People can also choose Executive Drug Rehab, if they are business owners and corporate executives. This kind of drug rehab allows them to still feel corporate environment. They will not stop their daily activities completely during the treatment process.

Private Drug Rehab is a great kind of drug rehab for people who really want to keep their personal information confidential from others. They can just relax and get through the whole treatment process without worrying about their privacy. Those are some of the drug rehabs that can be chose. It really depends on their needs, preference and budget.

There are so many types of luxurious cars nowadays. People are more consumptive to spend their money to buy luxurious cars. One of the famous cars is Hummer, this car is a brand of SUV and trucks has been marketed since 1992 by AM General. Nowadays it has become of one the luxurious SUV that people desire to have.

One of the companies that will provide you with Hummer products is Human Gear Online. This company will provide you with highest quality of Hummer available on the market. This brand is known for its power, performance and luxury. The Hummer H1, H2 and H3 models have set a new standard for rugged style and it is always better to customize your hummer and make it unique. Hummer was originally used in military but since 1990s this car become available in the market and used by celebrities. This company will provide you with Hummer H1 interior parts such as carbon seat heater, premium Madera wood, center console rack and many others.

There are also Hummer H2 exterior parts such as piece interior billet kit, doors sills and many others. This company is the best place for you to find accessories to customize your Hummer.

As an example, the new Toyota Camry is available in several trim levels ranging from about ,000 for the LE version to more than ,000 for the hybrid Camry. The Honda Civic starts at ,000 (DX) while the hybrid version will set you back at least ,600.

So, yes, if you are low on cash right now, the extra cost of going green could be the deal breaker. At the same time, it is important to consider the long-term savings associated with a hybrid when making a buying decision. While the gas-only Camry is getting around 21 miles per gallon in the city, the hybrid version gets about 33 MPG. That could mean that shelling out the extra ,000 now could save you a bundle in fuel costs over the long-run. Resale value is also better for the hybrid model.

Burning through batteries

Another disadvantage of buying a hybrid are potential problems that could occur with their expensive batteries. Because hybrid technology relies heavily on the electric battery within the car, buyers are often concerned that these types of batteries will need to be replaced more often than would a standard, 12 volt battery.

Fortunately, the nickel metal hydride batteries in hybrid cars charge themselves when the car is not using the electric power supplied by them. By avoiding draining the batteries, studies have shown that these batteries normally last just as long as those of a standard vehicle. Hybrid vehicle manufacturers also include warranties to cover these batteries for 80,000-100,000 miles. You can learn more about the warranties on different hybrid models here.

Is my footprint truly green?

Hybrid vehicle technology is complex and therefore it requires many resources devoted to its production. This means that the factories producing hybrid cars are likely creating just as much, if not more pollution than factories that build non-hybrid vehicles.

On the other hand, the impact of those hybrids once they are on the road is much less than that of standard vehicles, thereby decreasing their overall, negative environmental impact. So, while buying and driving a hybrid does not free you from pollution and CO2 emissions, it does lessen the negative effects.

Am I safe in a hybrid car?

Two features that allow a hybrid to be so fuel-efficient, the electric technology and lighter weight of the vehicle, are cause for concern for some potential buyers. For example, the high voltage required by a hybrid car’s battery could prove dangerous in a collision if wires are exposed. Also, the light weight of some hybrids may concern potential buyers who fear these types of cars would not fare well in a collision. Check out the safety rating of most hybrid cars here or review hybrid SUV safety here.

Other disadvantages, issues, potential problems, and drawbacks to hybrid vehicles include their lack of availability, slower acceleration, brake noise & feel, the fact that some may be “too quiet”, and lack of choice – as most car models are not yet being built as hybrids.

While most of luxury SUVs car owners will rarely put their vehicles to any ultimate test, LX owners put their vehicles with utmost confidence in poor weather condition. The competitors include other luxury SUVs like Mercedes-Benz GL550 and Land Rover Range Rover.

Exterior and interior

The standard mechanical and exterior features include 20-inch alloy wheels, electronically controlled suspension that automatically adjusts ride height and firmness, adaptive auto-on and off xenon headlights, power lift-gate, front fog lamps, roof rack, sunroof, and LED taillights. 

Step inside and you’ll find wood trim, leather upholstery, power-adjustable heated front seats, driver memory functions, quad-zone automatic climate control, power-sliding second-row and power-folding third-row seats, 9-speaker audio system with a six-CD changer, voice-activated navigation system with real-time traffic, rear view camera as well as Safety Connect telematics systems.

A 115-volt AC home-style power outlet, Bluetooth phone with audio connectivity, an auxiliary audio jack, and satellite radio are also standard. It can seat up to eight people in three rows.

Engine Specs

Lexus LX 570 is equipped with a 5.7-liter V8 engine that produces 383-hp and 403 pound-feet of torque. The engine is connected to a six-speed automatic transmission.

Safety Aspects

The safety features incorporated in this SUV include front-seat side-impact airbags, knee airbag for both front occupants, electronic stability system, antilock disc brakes, second-row side-impact airbags, active front head restraints, seat belt pretensioners for the second  and front-row seats, three-row side curtain airbags, and optional pre-collision systems. 

You may want to read more about 2010 Saturn Aura

I am an avid truck enthusiast and have been following the heavy automobile market for quite a lot of time. Amongst the various types of such vehicles, I have observed that the demand for used 4×4 trucks is more than any other truck at the moment. This shows that the 4×4 trucks are really popular amongst consumers. The increasing sale of used trucks can be explained by the fact that the price of used trucks is much lower than a new one. This article is targeted at people who are looking for a used truck for their business or industries. Both of these are 2010 models and they have done really well in the market till now.

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The 2010 Ford F-150 Super Cabs SVT 4×4 is my second ace. It would be a crime to leave out Ford when compiling the best trucks. They are one of the biggest names in the truck industry. This model from Ford has dynamic performance which is the most impressive part about it. There is a capacity of up to five persons on the inside. You get just one trim for this vehicle – the 133 in WB Raptor. This automobile is available in version of 5.4 liter, 310 Horsepower V8 and a flexible fuel engine. This truck is available with a six speed automatic transmission and it is one of my favorite trucks in this category. If you don’t have enough money to buy a new one, you can look for this vehicle in the used 4×4 trucks collection that your local dealer might have.

There are other used 4×4 trucks for sale in the market too but these two really caught my eye so I am writing about it. If you are thinking about buying a 4×4 truck make sure you check out these two before making your decision. Also I would recommend you to go for a used automobile instead of a new one since it costs a lot less.

A professional recovery and rehabilitation center for drug and alcohol addiction must able to provide complete programs that ensure best result. In current world condition, where there are so many good places for rehabilitation center available, it kind of confusing to decide which place to go. We should do comparison and survey before we decide it. it requires deep and detail consideration for recovery center that we want to go.

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Auto Part Dealers Are Plentiful Both Locally And Online   If you are like me, you are actually very clueless about the auto parts in your car. When something breaks or needs replacing, you need help deciding what you need to buy in order to fix it. If you are lucky, you have someone you can ask for advice about the auto parts you need. However, if you don’t have someone like that, there are some steps you can take to make your auto parts purchases as painless as possible.

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One of the most tried and true ways of checking out any business, including auto parts dealers both local and online, is to check with the Better Business Bureau. To be safe, only buy from dealers who are registered with them and have a good overall rating. That way, if trouble arises, you can always file a complaint with an organization that can get you results and possibly your money back if you have a problem with your purchased auto parts.

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