What is Bakelite and what was it used for?
Bakelite, or polyoxybenzylmethylenglycolanhydride, is an early plastic that was quite sturdy and could withstand high temperatures. It is a thermosetting phenol formaldehyde resin, formed from an elimination reaction of phenol with formaldehyde, usually with a wood flour filler. It was developed in 1907-1909 by Belgian chemist Dr. Leo Baekeland. The black plastic handles and knobs on your Grandmother's old pots and pans are made from bakelite. The outer plastic shell of any rotary phone you may have seen was made from bakelite. Bowling balls, the old black ones, were also once made from bakelite too.
7 people found this useful
Answer . Bakelite is very popular right now. A good test is to dip an inconspicuous corner into hot water and immediately smell the item. If it has a strong pine needles kind of odor it is most likely bakelite.
What is value of a 410 gauge Stevens over-under full and modified chokes shotgun with a Bakelite stock?
I lived in Glendale Arizona in the late 1980's, left in 1995. During this time I lived around 59th and Glendale avenue, at which time our house was broken into during the day, and this Stevens over under .410 was stolen, along with a single shot .410, a .22 automatic. The Stevens was a bit unique be…cause BOTH barrels were .410, it had two opposing hammers, and two triggers, one behind the other. Because this was my fathers gun, it has a special place in my Heart. I am interested in buying it if anyone has any knowledge of its whereabouts. THANKS, DOUG (MORE)
Where can you find information about a 22 caliber JC Higgins Model 33 Huntmaster pump rifle with a bakelite or nylon stock and forearm?
Answer . \nThe JC Higgins 33 was made by High Standard for Sears in the mid 1950's.
If he only calls after 12:00, he's using you. If you're the only one who goes down, he's using you. If he never pays for condoms, he's really using you.
Bakelite is a plastic that is used from 1906 up today in some applications. It was replaced sometimes by ABS, PVC, etc.
Amber Bakelite: Is the reproduction of true amber in a celluloid plastic: Plastics in some form or other have been used in jewelry for many years. Celluloid was the first known plastic, invented in 1868 by John Hyatt. Then in the first part of the 20th century, casein (made from a milk protein) came… along. He found that once it was cast, it could not be melted. The Great Depression of the '30s occurred. Money was scarce; women were looking for an inexpensive way to refurbish their old wardrobe and give it a new look; bakelite was the answer. One could find this unique jewelry in almost any color: red, green, and butterscotch being the most common. Bakelite jewelry added a cheery note to a bleak time in our history. Bakelite was used to imitate tortoiseshell, amber, and even gemstones. It was dyed to imitate coral and looked so believable that it often has to be tested to tell the difference.. Bakelite, as was mentioned earlier, was often used to imitate amber. A lot of jewelry on the market today that is thought of as amber is actually bakelite. The one conclusive test is hot needle test. When a red hot needle is placed on a piece of bakelite, the material will not be penetrated; whereas, true amber will melt and release a faint piney odor. This is a destructive test but when in doubt it is the only test I know that is accurate. If you must know, please find an inconspicuous place on the specimen to do your testing. (MORE)
Clean and dry Bakelite is a such a good insulator it would not be possible to use it to make a conductor of electricity. However if the piece of Bakelite was sprayed with water all over and a high enough voltage was applied to it, the water (not the Bakelite) would conduct electricity. Another poss…ible answer is that if the Bakelite was made as thin as, say, some cigarette paper, and if a very high voltage was put across its thickness, the Bakelite would then break down and it would no longer be a good insulator. The burnt Bakelite could then conduct an electric current. Probably several hundreds or even thousands of volts would be needed to do that, but the resulting burnt stuff is not the same material as the clean and dry Bakelite we started with!. The simple answer is bake it in a very hot oven (e.g. â¥500F) until it chars. The carbon in the charred Bakelite conducts. Warning: the charing process will generate smoke, which will both trigger your smoke alarm and make breathing very difficult! Please don't try this. (MORE)
A and An are indefinite articles as opposed to The which is adefinite article. Indefinite articles signal that the noun beingmodified refers to any member of the group, where as The indicatesthat the noun is specific. A is used before nouns that begin with consonant sounds .An is used before noun…s that begin with vowel sounds . For example: I saw a tiger. I saw an elephant. I saw the dog (specific dog is being referred to) I saw a unicorn (sounds like you-nih-corn). He is an honest man (sounds like ah-nist). (MORE)
Bakelite is a thermosetting plastic. Its structure is made up of extensively cross-linked chains, which stop the chains from unfolding.
Bakelite or polyoxybenzylmethylenglycolanhydride is a thermosetting phenol formaldehyde resin, formed from an elimination reaction of phenol with formaldehyde.
Bakelite's main property is the fact that you can bake bread in lite form, so it's free.
Bakelite was a form of plastic in the 1940's and 1950's in theUnited States. Bakelite means that the particles to make theplastic were baked and melted. Bakelite is also a very breakableplastic, almost like a ceramic.
We need to know about the material specification of BAKELITE which can be used for industrial purpose
Bakelite is rigid because the polymer chains are cross branched.For one chain to slide past another they have to be broken.
A few properties of bakelite At 300k Thermal conductivity --- 1.4 w/mk Density --- 1300 kg/m3 sp.heat at const pressure-- Cp--1465 j/kgk
Bakelite was the first plastic in the world. They made televisions and telephone housings and other stuff out of bakelite, because it was very cheap. Now we have other plastics.
Bake lite was meant to take low heat , like coffee pot handles, toaster handles etc. Regular plastic not so heat resistant . .
The patent was ordered in 1909, it was developed between 1902 and 1909 according to wikipedia and: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=0942809.PN.&OS=PN/0942809&RS=PN/0942809
It is used mainly in the production of cheap products. Items can include Billiard Balls, Dominoes and board game pieces, some Dice are also made of it, Wheel casters for arm chairs and sofas etc.
I'm assuming that you are bonding it, and if it is a broken piece you are glueing together, then don't disturb the surfaces, other than removing dirt with a toothbrush and iso-propyl alcohol if the break is an old one. If it is a flat surface you are glueing, clean the bond area first with alcohol o…r wax and grease remover and carefully sand the surface with 120-180grit paper until it is dull. Try not to touch it with your fingers. use a 2- part epoxy glue, as it bonds well to most plastics . I'm not sure if Phenolic resin based glue is available. It would provide the best bond because it is closely related to bakelite. An electronics store may be able to help.. I hope I did'nt misunderstand the question- by "prepare" did you mean "make" or prepare surface for bonding ? feel free to message me. (MORE)
Bakelite is made in a process that uses Phenol and formaldehyde both of which are toxic. Bakelite is safe to handle, but may deteriorate over time releasing the toxins in small quantities.
The revolver is probably an Iver Johnson. The grips were after-market grips, distributed by Siles.
Bakelite was a solid substance used during the second world war to make the coutside case of desk telephones
Bakelite jewelry is basically vintage jewelry made from bakelite, the very first type of plastic that enables molding once heated. Bakelite is easily colored and can also be carved, which is why bakelite jewelry often depicts flowers and other colorful designs.
I assume that you mean 'will' as a verb, as opposed to 'shall'. In the first person, forming the future tense with 'will' implies determination, whereas forming it with 'shall' implies a simple future. In the second and third persons, the opposite applies. Examples: 'I will see you tomorrow.' (I …will definitely see you, even if there are obstacles to doing so.) 'I shall see you tomorrow.' (This is simply what will happen.) 'We will not visit her next week.' (We refuse to visit her.) 'We shall not visit her next week.' (This is simply what will happen.) 'You will not become a doctor.' (This is simply what will happen.) 'You shall not become a doctor.' (You will not be allowed to become a doctor.) 'She will do well in her exams.' (This is simply what will happen.) 'She shall do well in her exams'. (Someone is determined that she will do well.) 'Their memory will live for ever.' (This is simply what will happen.) 'Their memory shall live for ever.' (Their memory will not be allowed to die.) (MORE)
It depends, if the Bakelite is dry, it won't conduct electricity, however if it is wet and a high enough voltage is applied to it, it might conduct electricity.
Bakelite is a kind of plastic. It was at one time a reasonably common material to make (usually cheap) jewelry from; it's less common today. Many Bakelite pieces are now considered antiques and are worth considerably more than might be expected for plastic jewelry.
Does any one know what a vintage spring loaded tool with pincers on one end and a bakelite ball on the other end does?
Herere's the link to a picture: http://www.flickr.com/photos/eraphernalia_vintage/3087599023/ could it be for extracting pickles/olives/cherries from a jar?
The pronoun 'I' can never be used correctly with the verb 'is.' Correct ways of using 'is' in present, past, and future tense include: . I am (PRESENT TENSE) . I was (PAST TENSE) . I will (FUTURE TENSE) . She/he is (PRESENT TENSE) . She/he was (PAST TENSE) . She/he will (FUTURE TENSE)
It doesn't have a melting point as it is a thermosetting plastic, meaning it can be heated but it will not melt, instead the temperature will be raised until it burns. Hope this help :D
Have refers to something that you are in possesion of at the moment. (Do you have THE movie? Do you have A movie?) usually asking a question. it sounds akward saying, "She have THE chair, or, She have A chair) Has usually refers to something or someone else, but does not usually have it in posessio…n. (she has A book, She has THE book) (MORE)
If you have antique FORFEX bakelite hair clippers 2 sets both working with detachable heads are these worth anything to a collector?
probably not worth more than 20 GBP, depends very much on condition. do you have photos? send to firstname.lastname@example.org
Unless the balls are made of ivory used pool balls have very little value. Balls go out of round as a result of normal play, and therefore a new set of cheaply made $30 balls is almost certainly superior for play than set that has had a lot of use. Ivory pool balls have sold for more than $200 apiec…e. If the pool balls are not collectible, such as ivory, they have little collectible value. (MORE)
Advantages are it can be easily melted, is less flammable then one of the earlier plastics celluloid and has great strength.
Bakelite was one of the first, if not the first plastic. It has the advantages of being easy to make, cheap, strong, hard to melt, and . . . . . keeps you from burning your hand on the pan handle!
The hardness of Bakelite is measured in Rockwell (hardness unit for plastics). For Bakelite or "phenolics" the harndess is 70-95 Rockwell E.
Â· Just like any other plastic-based product, disposing Bakelite is extremely hazardous to the environment. With older home renovations at its peak, many people are unintentionally exposed to Bakelite from replacing ceiling or floor tiles. Â· Since Bakelite is a manufactured, synthetic plastic… containing incredible amounts of formaldehyde, asbestos and other extremely toxic polymers, those who produced these desirable products, put themselves at risk. At the time, safety and health precautions were not mandatory. These hardworking men and women exposed themselves to the toxins, through exposure. Â· If a Bakelite product breaks, the synthetic materials become airborne, and may result in inhalation, ingestion or direct skin contact. (MORE)
Bakelite is used in making electrical appliances because it has very good electrical insulating properties.
Bakelite is a thermoset polymer. (Phenol-Formaldehyde-Polymere, Oxybenzyle(methylene-glycole)anhydride). The synthetic plastic is patented in 1907 by Leo Hendrik Baekeland as a shellac substitute.
All materials can conduct some electricity. Bakelite, by Westinghouse, is considered an insulator in ambient conditions because it has specific resistivity in the range of many megohms per unit volume. Depending on the physical shape of the Bakelite and the amount of voltage impressed upon it, Bakel…ite may break down (loose its insulating properties). Under normal industrial conditions Bakelite is considered an insulator. (MORE)
Bakelite was not a material ever made 'by hand', however, the value of the item will depend (1) upon its condition - very little if there is any damage, cracks, chips etc - (2) its colour, brown and black are not very fashionable at the moment (3)
Nothing anymore, but electrical switches, outlets and cover plates used to be the most common use of Bakelite. Now all those things are made of nylon.
The poorest insulator would be the best conductor, which is one of the noble metals. Bakelite is a fairly good insulator, not too long ago electrical fittings were made from it.
Made from different materials. Bakelite is hard and rather brittle, polythene is softer and flexible.
One can buy a working Bakelite Telephone in their online webstore at bakelitetelephones dot co dot uk. Alternatively, one can check eBay or Amazon for cheaper ones.
Bakelite jewelry is an antique. With many different designs and styles, there are many options one might choose from. One can find information on Bakelite written in an easy-to-understand format at the "About" website.
Bakelight is resistent to heat. This is one reason why it is used in plugs. It also is not a conductor of electricity, this is another reason it is used in plugs.
Because those materials insulate from heat, rather than conduct it,and it prevents you from burning your hands when you grab thehandle.
Plastic/bakelite is there to insulate the handle so you don'tscorch your hand. Which you would do if handle was metal, or youforgot to use a cloth.
Plastic/bakelite is there to insulate the handle so you don'tscorch your hand. Which you would do if handle was metal, or youforgot to use a cloth.