Description
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GREETINGS, FEEL FREE
TO
"SHOP NAKED."©
We deal in items we believe others will enjoy and want to purchase.
We are not experts.
We welcome any comments, questions, or concerns.
WE ARE TARGETING A GLOBAL MARKET PLACE.
Thanks in advance for your patronage.
Please Be sure to add WDG to your favorites list!
NOW FOR YOUR VIEWING PLEASURE…
SHAVEX
ELECTRIC OUTLET ADAPTER
CONVERTS AC TO DC
ANY ELECTRIC SHAVER
SHAVER-MATE
FASTER SMOOTHER SHAVES
LOS ANGELES 39, CALIFORNIA
OLD PATENT NUMBER 2491031
W. H. BURGESS RECTIFIER Dec. 13, 1949 Filed Feb. 17, 1947 2 She'ets-Sheet 1 INVENTOR. WILLIAM H. BURGESS ATTORNEY Dec. 13, 1949 H, BUR ESS 2,491,031
RECTIFIER Filed Feb. 17, 1947 2 Sheets-Sheet 2 44 no v o. c. OUTPUT INPUT IIOV A.C. T-
I4 ll 30- 36 3O 2: P 3% TH /3| 4 INVENTOR. 70 I WILLIAM H. BURGESS ATTO R NEY v Patented Dec. 13, 1949 RECTIFIER William H. Bur-gen, Pasadena, Calif., assignor, by mesne assignments, to David A. Marcus,
Los Angeles, Calif.
Application February 17, 1947, Serial No. 729,141
12 Claims.
This invention relates to rectifiers, and has as its general object to provide a simple and compact arrangement of rectifier parts in a cabinet or case to produce a rectifier unit adapted for use in connection with household appliances, such as. for example, electric shavers.
It has been found that the ordinary electric shaver, which has been designed to operate on 110-120 volts, 50 or 60 cycles commercial electric current, will operate better on a direct current of the same voltage. When energized by an altemating current, a shaver motor operates in a synchronous manner, but on direct current such a motor operates non-synchronously and is able to attain greater speed and power than the synchronous speed of alternating current operation, and, consequently, develops faster and more eflicient cutting ability without exceeding the shaver manufacturer's rating. 4
Since the power supply for home use is almost always in the form of alternating current, there is a definite need for a compact rectifier unit which can be employed in conjunction with an electric shaver, which can be plugged into an electric outlet, which has means into which the extension cord of the electric shaver may be plugged, which can be readily serviced for repair or replacement of parts, and which is relatively fool-proof.
The present invention provides a rectifier having these characteristics... https://patents.google.com/patent/US2491031A/en
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FYI
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A straight razor is a razor with a blade that can fold into its handle. They are also called open razors and cut-throat razors.
Although straight razors were once the principal method of manual shaving, they have been largely overshadowed by the safety razor, incorporating a disposable blade. Electric razors of various types have also been an available alternative especially since the 1950s. Despite that, straight razors still hold a market share, and forums and outlets provide products, directions, and advice to straight razor users. Straight razor manufacturers still exist in Europe, Asia (especially Japan), and the United States. straight razors are also actively traded.
Straight razors require considerable skill to hone and strop, and require more care during shaving. These methods were once a major portion of the curriculum in barber colleges.
History: Razor made of bronze from the first Iron Age. The handle is fixed and the razor has two cutting edges. Decorative ridges can also be seen following the direction of the handle into the blade. The pointed tip of the blade indicates additional uses as a knife or a weapon. The three circular holes on the handle and the blade body indicate the possibility they could be used for fasteners in a spear head as well. It is on exhibit at the Ardennes Museum in France. Various forms of razors were used throughout history, which are different in appearance but similar in use to modern straight razors. In prehistoric times clam shells, shark's teeth, and flint were sharpened and used to shave with. Drawings of such blades were found in prehistoric caves. Some tribes still use blades made of flint to this day. Excavations in Egypt have unearthed solid gold and copper razors in tombs dating back to the 4th millennium BCE. The Roman historian Livy reported that the razor was introduced in ancient Rome in the 6th century BCE. by legendary king Lucius Tarquinius Priscus. Priscus was ahead of his time because razors did not come to general use until a century later.
The first modern straight razor complete with decorated handles and hollow ground blades was constructed in Sheffield, in England, the centre of the cutlery industry, in the 18th and 19th centuries. Benjamin Huntsman produced the first superior hard steel grade, through a special crucible process, suitable for use as blade material in 1740. Huntsman's process was adopted by the French sometime later; albeit reluctantly at first due to nationalist sentiments. The English manufacturers were even more reluctant than the French to adopt the process and only did so after they saw its success in France. Sheffield steel, a highly polished steel, also known as Sheffield silver steel' and famous for its deep gloss finish, is considered a superior quality steel and is still used to this day in France by such manufacturers as Thiers Issard.
In the 18th and 19th centuries the wealthy had servants to shave them or could frequent barbershops. Daily shaving was not a widespread practice in the 19th century so some people never shaved. The custom of shaving every day among American men is a 20th century innovation. In the 19th century, cutlers in Sheffield, England and Solingen, Germany produced a variety of razors.
Straight razors were the most common form of shaving before the 20th century and remained that common in many countries until the 1950s. Barbers were specially trained to give customers a thorough and quick shave, and a collection of straight razors ready for use was a common sight in most barbershops. Barbers still have them, but they use them less often.
Straight razors eventually fell out of fashion. Their first challenger was manufactured by King C. Gillette: a double-edged safety razor with replaceable blades. Gillette's idea was the use of the "loss leader" concept, in which the razors were sold at a loss, but the replacement blades earned a high margin and provided continuous sales. They provided a less effective shave, yet were immensely successful due to advertising campaigns and slogans denigrating the straight razor's effectiveness and questioning its safety.
These new safety razors did not require any serious tutelage to use. The blades were extremely hard to sharpen, and were meant to be thrown away after one use, and rusted quickly if not discarded. They also required a smaller initial investment, though they cost more over time. Despite its long-term advantages, the straight razor lost significant market share. And as shaving became less intimidating and men began to shave themselves more, the demand for barbers providing straight razor shaves decreased.
Around 1960, stainless steel blades which could be used more than once became available, reducing the cost of safety-razor shaving. The first such blades were made by the Wilkinson firm, famous maker of ceremonial swords, in Sheffield. Soon Gillette, Schick, and other manufacturers were making stainless-steel blades.
These were followed by multiple-blade cartridges and disposable razors. For each type of replaceable blade, there is generally a disposable razor.
In the 1930s, electric razors became available. These can rival the cost of a good straight razor, although the whole straight-razor shaving kit can exceed the cost of even an expensive electric razor.
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