Vintage Bakelite King Pyramid model 162 Telephone refurbished 1930s The King Pyramid phone was introduced in 1929. This phone has a bellset fitted in the base. It was made in the 1930s for the Post Master Generals Department (the P.M.G.). It has a cloth covered handet cord. The phone is very heavy weighing 3.5 kg. This is a rare vintage phone. It has been cleaned and refurbished and is good mechanical order.The bells ring lound and clear and transmission is good. It is good example of a working 75 year old telephone. Dials decadic it will not dial DTMF tones that you use for voicemail/call centres etc. However it dials telephone numbers fine information on decadic here. This phone has been refurbi more advice
Vintage Black Bakelite PMG 400 AT Telephone 1962 The last of the bakelite phones introduced in the 1950s. They were available in black or ivory. The phone is very heavy weighing 2.3 kg. This is a rare vintage phone. It has been cleaned and refurbished and is good mechanical order.The bells ring lound and clear and transmission is good. It is good example of a working almost 50 year old telephone. Dials decadic it will not dial DTMF tones that you use for voicemail/call centres etc. However it dials telephone numbers fine information on decadic here. This phone has been refurbished . The bakelite black telephone comes with a standard telecom 605 plug you may need an adaptor here or other adaptors here you may need an ADSL filter information on ADSL with retro phones here) Vintage Black Bakelite PMG 400 AT Telephone 1962 more information…..
Vintage King Pyramid Telephone 1930s refurbished
Vintage PMG 400 series Telephone refurbished
Bakelite an early plastic thermosetting phenol formaldehyde resin,formed from an elimination reaction of phenol with formaldehyde,usually with a wood flour filler. It was developed in 1907 by Belgian chemist Dr Leo Baekeland.
Major plastics made out of synthetic elements (although phenol can be extracted from biological sources),Bakelite was put to use in its electrically nonconductive and heat-resistant properties in radio and phone casings and electrical insulators,and also in such different merchandise as kitchenware,jewellery,pipe stems,and kid’s toys. In 1993 Bakelite was designated a National Historical Chemical Landmark by the American Chemical Society in acceptance of the company’s worth as by far the first synthetic plastic.
The "retro"good thing about old Bakelite products and labor intensive manufacturing has made them into quite collectible understand. Bakelite and Bakelit are licensed trademarks of Momentive Specialty Chemicals GmbH.
Dr. Leo Baekeland had formerly begin find a alternate for shellac (made out of the excretion of lac beetles). Chemists had did start to recognize that many natural resins and fibres were polymers,and Baekeland investigated the reactions of phenol and formaldehyde. Dr. leo baekeland 1st manufactured a soluble phenol-formaldehyde shellac called "Novolak"that never became a market success,then turned to developing a binder for asbestos which,at the same time,was moulded with rubber. By controlling the pressure and temperature put to use on phenol and formaldehyde,he found in 1907 he could produce his dreamed-of hard mouldable plastic:bakelite. He announced his discovery at a conference belonging to the American Chemical Society on February 5,1909.
The Bakelite Corporation was formed in 1922 (after patent litigation favorable to Baekeland) from a merger of three companies:the General Bakelite Company,which Baekeland had founded in 1910,the Condensite Company founded by J.W. Aylesworth,as well as the Redmanol Chemical Products Company founded by L.V. Redman.
Bakelite Limited was formed in 1926 from the amalgamation of three suppliers of phenol formaldehyde ingredients:the Damard Lacquer Company Limited of Birmingham;Mouldensite Limited of Darley Dale and Redmanol Chemical Products Company of London. Around 1928 a brand new factory launched in Tyseley,Birmingham,England (subsequently demolished in 1998). In 1939 the company was acquired by the Union Carbide and Carbon Corporation.
Phenolics are rarely used in general consumer goods at this time since cost and complexity of production and their brittle nature. An exception to this fact overall decline is their use in small precision-shaped pieces where their particular characteristics are needed,such as molded disc brake cylinders,saucepan handles,electrical plugs and switches and parts for electrical irons. Today,Bakelite is produced and created in sheet,rod and tube form for 100′s of commercial purposes in the electronics,power generation and aerospace industries,and under a wide range of industrial brand names,which includes Garolite.
Phenolic sheet is really a hard,dense material put together by applying pressure and heat to layers of paper or glass cloth impregnated with synthetic resin. These layers of laminations are usually of cellulose paper,cotton fabrics,synthetic yarn fabrics,glass fabrics or unwoven fabrics. When heat and pressure are applied to the layers,a chemical reaction (polymerization) transforms the layers into a high-pressure thermosetting industrial laminated plastic. When rubbed,unique Bakelite has a telltale odor.
In early twentieth Century it was found in a myriad of purposes such as saxophone mouthpieces,whistles,cameras,solid-body electric guitars,rotary-dial telephones,early machine guns,and appliance casings. The thermosetting phenolic resin was at one point thought of for the manufacturing of coins,because of shortage of traditional production material. In 1943,Bakelite along with other non-metal materials were tested for usage as a penny nationally in front of the Mint settled on zinc coated steel.
In its commercial applications,Bakelite was specifically suitable for the emerging electrical and automobile industries for its extraordinarily high resistance –not only to electricity,but to heat and chemical action. It was soon put to use in all nonconducting the different parts of radios as well as other electrical devices,such as bases and sockets for light bulbs and electron tubes,supports for any type of electrical components,automobile distributor caps,along with other insulators. The foremost make use of Bakelite today is incorporated in the industrial sector for insulation of wires,construction of brake pads and related automotive components and industrial electrical related applications.
After The Second World War,industries were retrofitted to produce Bakelite using a more effective extrusion system which enhanced manufacturing and enabled the uses of Bakelite to extend into other genres of ephemera. Jewelry boxes;desk sets;clocks;radios;game pieces like chessmen,poker chips,billiard balls and Mah Jong sets;kitchenware such as canisters and tableware were also made of Bakelite through the nineteen fifties. Beads,bangles and earrings were that is generated by the Catalin Company which introduced 15 new colors in 1927. The Catalin Company was attributed to have created marbled Bakelite. Translucent Bakelite jewelry,poker chips and other gaming items such as chess sets were also revealed while in the 1940s according to the Prystal Corporation name;however,its basic chemical composition remained the same.
The primary commercial uses for Bakelite these days remain in the market of inexpensive board and tabletop games produced in China,India and Hong Kong. Items such as billiard balls,dominoes and pieces for games like chess,checkers,and backgammon are made of Bakelite for its look,durability,fine polish,weight,and sound. Common dice are sometimes made of Bakelite for weight and sound,but the majority is made of a thermoplastic such as acrylonitrile butadiene styrene (ABS) which is not as durable as Bakelite.
Bakelite is used to Have the show boxes of Breitling watches and sometimes in its place for metal firearm magazines. Bakelite is also used while in the installation of metal samples in metallography.
Phenolic resins happen to be commonly used in ablative heat shields. Soviet heatshields for ICBM warheads and spacecraft reentry was comprised of asbestos textolite impregnated with Bakelite.