|
Combination Machine
A combination machine is a woodworking machine that combines the functions of two or more separate machines into a single unit. For example, a combination machine might consist of a tablesaw with a side-mounted jointer. Another common example of this type of machine is the ''jointer-thicknesser'' (also known as an ''over-under'') which combines the function of a jointer with that of a planer. Design Some combination machines run all of their functions from a single motor; others may use more than one. Cutter heads are often shared: for example a jointer-thicknesser may use the same cutter head for both functions. The machines rely upon well thought-out designs which allow the user to switch from one function to another easily. Advantages One rationale for the production of these machines is space saving. A combination machine takes up much less space than the equivalent separate machines. Most European machines have a sliding table that tends to make them safer than typical North A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woodworking Machine
A Woodworking machine is a machine that is intended to process wood. These machines are usually powered by electric motors and are used extensively in woodworking. Sometimes grinding machines (used for grinding down to smaller pieces) are also considered a part of woodworking machinery. Types of woodworking machinery Artisanal and hobby machines These machines are used both in small-scale commercial production of timber products and by hobbyists. Most of these machines may be used on solid timber and on composite products. Machines can be divided into the bigger stationary machines where the machine remains stationary while the material is moved over the machine, and hand-held power tools, where the tool is moved over the material. Hand-held power tools * Biscuit joiner * Domino jointer * Chain saw * Hand-held circular saw * Electric drill * Jig saw * Miter saw * Nail gun * Hand-held electric plane * Reciprocating saw * Rotary tool * Router * Hand-held sanders, including belt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RLF Brands
RLF Brands is a US manufacturer of Shopsmith combination machines for woodworking. The brand has its origins in the ShopSmith 10ER launched in the late 1940s, an immediate success with do-it-yourself homeowners. Later the brand changed hands twice before becoming dormant in 1966. Shopsmith, Inc. was founded in 1972 to resume manufacture of ShopSmith parts and products. In 2009 Shopsmith, Inc. went into bankruptcy, and reorganized as RLF Brands. RLF continues to use the Shopsmith brand name. Origins Shopsmith has its origins in the ShopSmith 10E and 10ER tool, a five-in-one woodworking tool for do-it-yourself consumers invented in the late 1940s by Hans Goldschmidt, an immigrant from Germany. It found a ready market among new homeowners in the period after World War II (1939–45). The compact ShopSmith 10ER combined a table saw, lathe, drill press, disc sander and horizontal boring machine. It was manufactured by Goldschmidt’s Magna Engineering Corporation of San Diego, California ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mortiser
A mortiser or morticer is a specialized woodworking machine used to cut square or rectangular holes in a piece of lumber (timber), such as a mortise in a mortise and tenon joint. Square chisel mortiser The square chisel mortiser (also called ''hollow chisel mortiser''), similar to a drill press in many respects, combines the cutting of a four-sided chisel with the action of a drill bit in the center. The bit clears out most of the material to be removed, and the chisel ensures the edges are straight and clean. This device was invented in 1874 by Robert and Ralph Greenlee (founders of the Greenlee Company). The first square chisel lever mortisers were purely manual and relied on the operator pulling down on a large lever to push the chisel through the timber. An improvement was to place a rotating cylindrical auger inside a hollow chisel. This helps to clear chips up the centre of the chisel. As electric power became easily available, the auger developed as a drill bit and beca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thicknesser
A thickness planer (also known in the UK and Australia as a thicknesser or in North America as a planer) is a woodworking machine to trim boards to a consistent thickness throughout their length. This machine transcribes the desired thickness using the downside as a reference / index. So, to produce a completely straight planed board requires that the down surface is straight before planing. Obtaining the first flat side requires either face planing with a jointer or face planing using a planer and jointer sled. Function A thickness planer is a woodworking machine to trim boards to a consistent thickness throughout their length and flat on both surfaces. It is different from a surface planer, or jointer, where the cutter head is set into the bed surface. A surface planer has slight advantages for producing the first flat surface and may be able to do so in a single pass. However the thicknesser has more important advantages in that it can produce a board with a consistent th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood Shaper
A wood shaper, usually just shaper in North America or spindle moulder in the UK and Europe, is a stationary woodworking machine in which a vertically oriented spindle drives cutter heads to mill profiles on wood stock. The wood being fed into a moulder is commonly referred to as either ''stock'' or ''blanks''. The spindle may be raised and lowered relative to the shaper's table, and rotates between 3,000 and 10,000 rpm, with stock running along a vertical fence. Wood shaper cutter heads typically have three blades, and turn at one-half to one-eighth the speed of smaller, much less expensive two-bladed bits used on a hand-held wood router. Adapters are sold allowing a shaper to drive router bits, a compromise on several levels. As are router tables, cost-saving adaptations of hand-held routers mounted to comparatively light-duty dedicated work tables. Being both larger and much more powerful than routers, shapers can cut much larger profiles than routerssuch as for crown mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Product Liability
Product liability is the area of law in which manufacturers, distributors, suppliers, retailers, and others who make products available to the public are held responsible for the injuries those products cause. Although the word "product" has broad connotations, product liability as an area of law is traditionally limited to products in the form of tangible personal property. Product liability by country The overwhelming majority of countries have strongly preferred to address product liability through legislative means. In most countries, this occurred either by enacting a separate product liability act, adding product liability rules to an existing civil code, or including strict liability within a comprehensive Consumer Protection Act. In the United States, product liability law was developed primarily through case law from state courts as well as the ''Restatements of the Law'' produced by the American Law Institute (ALI). The United States and the European Union's product ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strict Liability
In criminal and civil law, strict liability is a standard of liability under which a person is legally responsible for the consequences flowing from an activity even in the absence of fault or criminal intent on the part of the defendant. Under the strict liability law, if the defendant possesses anything that is inherently dangerous, as specified under the "ultrahazardous" definition, the defendant is then strictly liable for any damages caused by such possession, no matter how careful the defendant is safeguarding them. In the field of torts, prominent examples of strict liability may include product liability, abnormally dangerous activities (e.g., blasting), intrusion onto another's land by livestock, and ownership of wild animals. Other than activities specified above (like ownership of wild animals, etc), US courts have historically considered the following activities as "ultrahazardous": # storing flammable liquids in quantity in an urban area # pile driving # b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supreme Court Of California
The Supreme Court of California is the highest and final court of appeals in the courts of the U.S. state of California. It is headquartered in San Francisco at the Earl Warren Building, but it regularly holds sessions in Los Angeles and Sacramento. Its decisions are binding on all other California state courts. Since 1850, the court has issued many influential decisions in a variety of areas including torts, property, civil and constitutional rights, and criminal law. Composition Under the original 1849 California Constitution, the Court started with a chief justice and two associate justices. The Court was expanded to five justices in 1862. Under the current 1879 constitution, the Court expanded to six associate justices and one chief justice, for the current total of seven. The justices are appointed by the Governor of California and are subject to retention elections. According to the California Constitution, to be considered for appointment, as with any California ju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Worm Gear
A worm drive is a gear arrangement in which a worm (which is a gear in the form of a screw) meshes with a worm wheel (which is similar in appearance to a spur gear). The two elements are also called the worm screw and worm gear. The terminology is often confused by imprecise use of the term ''worm gear'' to refer to the worm, the worm wheel, or the worm drive as a unit. The worm drive or "endless screw" was invented by either Archytas of Terentum, Apollonius of Perga, or Archimedes, the last one being the most probable author.Witold Rybczynski, '' One good turn : a natural history of the screwdriver and the screw''. London, 2000. Page 139. The worm drive later appeared in the Indian subcontinent, for use in roller cotton gins, during the Delhi Sultanate in the thirteenth or fourteenth centuries.Irfan Habib''Economic History of Medieval India, 1200–1500'', page 53 Pearson Education Explanation A gearbox designed using a worm and worm wheel is considerably smaller than on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pulley
A pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable or belt, or transfer of power between the shaft and cable or belt. In the case of a pulley supported by a frame or shell that does not transfer power to a shaft, but is used to guide the cable or exert a force, the supporting shell is called a block, and the pulley may be called a sheave. A pulley may have a groove or grooves between flanges around its circumference to locate the cable or belt. The drive element of a pulley system can be a rope, cable, belt, or chain. The earliest evidence of pulleys dates back to Ancient Egypt in the Twelfth Dynasty (1991-1802 BCE) and Mesopotamia in the early 2nd millennium BCE. In Roman Egypt, Hero of Alexandria (c. 10-70 CE) identified the pulley as one of six simple machines used to lift weights. Pulleys are assembled to form a block and tackle in order to provide mechanical advantage to apply large forces. Pulleys are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continuously Variable Transmission
A continuously variable transmission (CVT) is an automatic transmission that can change seamlessly through a continuous range of gear ratios. This contrasts with other transmissions that provide a limited number of gear ratios in fixed steps. The flexibility of a CVT with suitable control may allow the engine to operate at a constant RPM while the vehicle moves at varying speeds. CVTs are used in cars, tractors, side-by-sides, motor scooters, snowmobiles, bicycles, and earthmoving equipment. The most common type of CVT uses two pulleys connected by a belt or chain; however, several other designs have also been used at times. Types Pulley-based The most common type of CVT uses a V-belt which runs between two variable-diameter pulleys. The pulleys consist of two cone-shaped halves that move together and apart. The V-belt runs between these two-halves, so the effective diameter of the pulley is dependent on the distance between the two-halves of the pulley. The V-shape ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thickness Planer
A thickness planer (also known in the UK and Australia as a thicknesser or in North America as a planer) is a woodworking machine to trim boards to a consistent thickness throughout their length. This machine transcribes the desired thickness using the downside as a reference / index. So, to produce a completely straight planed board requires that the down surface is straight before planing. Obtaining the first flat side requires either face planing with a jointer or face planing using a planer and jointer sled. Function A thickness planer is a woodworking machine to trim boards to a consistent thickness throughout their length and flat on both surfaces. It is different from a surface planer, or jointer, where the cutter head is set into the bed surface. A surface planer has slight advantages for producing the first flat surface and may be able to do so in a single pass. However the thicknesser has more important advantages in that it can produce a board with a consistent th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Wood Shaper")
