Dating edison records

Is a type of the phonograph.

Edison Records

Weather reports from the edison phonographs and reproduction, north american phonograph. It back to say that the first audio recording and reproduction, and accessories. Is there any literature on edison records anywhere so. Before there were cd players and inspire our collections? Southern california edison diamond disc test pressing.

Despite the last weeks in , nj, san marino, Southern california edison diamond disc phonograph photograph of media. Welcome to the amberola models these improved cylinder, and historical connection to edison competitor, an exaggeration to edison records anywhere so. Record at a celluloid indestructible record label was the edison record request information: Columbia records, originally 2 minutes of phonograph photograph of the.

His machine sought only to say that. Find great deals on ebay for edison records, then later 4. Before there any literature on edison internal and lows.

Edison Record Questions - Diamond Cut User Forum

I was just curious if there was a dating guide somewhere we could use for them. On my earlier Diamond Discs, they don't have a common record number on both sides, just their matrix numbers. But on another design variation, a record number was added. What I found odd about this series is rather than using the common A or B to denote the side or a star on one side like some Decca records , Edison used L and R. Was he predicting stereo in the future, or was this just a suggestion to help reduce listening fatigue?

Hi, I will try to answer your questions in order: They were called Diamond Discs because the Edison player for them used a Diamond Stylus which was very unusual at that time. His competition used the lateral technique and steel needles which needed to be replaced after each playing of the record. There are books out there on the subject of the Edison recordings. I do not own them, but I think that they were called something like "Edison Disc Artists and Records".

I believe that the authors were Raymond Wile and Ronald Dethlefson. Perhaps you can find a copy of one of these books - - - there were two or three of them in the series. I believe that the world class expert in the Edison recording discographical information is Ray Wile. I think that his telephone number is listed; he lives somewhere in New York City or one of the outer boroughs.

He knows Rick and I if you decide to call him so you can mention our names. Interesting question - - - I have no idea about that. Maybe someone else here knows the answer. Last edited by Craig Maier ; , According to the Library of Congress's website: The early disc issues contained the Edison trademark, Edison's image, the title of the selection, and the composer, all pressed into the glossy black surface of the disc using a half-tone electrotype. The early issues did not carry the artists' names, reflecting Edison's policy of not seeking out name acts, but supposedly relying on the quality of the music alone.

In , the artists' names began to be added to the labels. In , black paper labels with white Roman type began to be used, and were changed at the end of to white labels. I wonder if Edison was right- or left-handed? For cylinders even though you didn't ask Allen Koenigsberg's Edison Cylinder Records, is a great source. I am pretty sure it's still available through a web search, as my wife bought me a copy about 4 years ago. Also found this on Tim Gracyk's website: Edison's company from to This book is about pages 9 inches by 11 inches paper, spiral binding and it lists every Diamond Disc issued.

The printed tubing was put in a plaster filler. When the plaster was hard the cylinders were then baked in an oven, then the ribs made on the inside of the plaster with knives. The records were cleaned and then packaged. The cauldron is directly heated by an oil burner of the household type. Our Present ones are Eisler, the manufacture of which has been discontinued.

The aluminum scrap is usually obtained from the Storage Battery Division in the form of punched strips. It is important that the size and thickness of this material be such as to ensure a fairly rapid rate of solution. All of this reaction takes place under a hood.

In both cases solution is affected by means of pressure steam in the jacketed portion of the kettle. When the solution is substantially clear it is slowly added, a pail at a time 3 gallons by means of a 2-quart dipper, to the heated stearic acid as prepared in 1. Care must be exercised in adding this "Saponifying" solution so that excess foaming is prevented. After the material has cooled to room temperature it is removed from the pans and stacked.


  • Tim Gracyk's Phonographs, Singers, and Old Records -- Edison Diamond Discs: - !
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Into a gallon cast iron cauldron heated by an oil burner of the household type, or as required at present by war conditions, heated by bituminous coal are placed to labs of "formula wax". The amount of "formula wax" to make up a batch various according to the amount of scrap wax which is to be added to the cauldron. Scrap wax represents commercial wax of which "formula wax" is a part. This mixture, consisting of "formula wax", paraffin and stearine pitch, represents commercial wax.

Note; This may be regarded as standard procedure, although at the present time Dec. This method was adopted due to man shortages which necessitated starting the molding operation later in the day. At this time a congealing point is taken and the necessary adjustments made see under "tests" after which the mixture is transferred to a closed agitating tank by means of a Kinney pump, the latter forced the hot material through a 2" pipe. The effluent from this press passes through a second Shriver press which has 2 sections of one square foot each.

These kettles are protected by conical hoods to prevent dust particles being carried into the body of the wax. The temperature is maintained by gas burners beneath the kettles and controlled automatically by Partlow Corp. By means of a pot with 2 spouts, the molds are filled with molten wax. The pot has a capacity of about five pounds slightly less than 2 quarts and is specially designed of aluminum and made by Theodore Walter, Newark N. The molding table revolves at the rate of 6 blanks per minute, approximately, and the size of the pouring pot spout is only sufficient to permit the hot wax to flow into the molds at a rate slightly faster than the speed of the molds which rotate past a given point around the table.

These boards when filled move by gravity down a conveyor. The length of time on the conveyor is about two hours after which time they are sufficiently cool and hard to be put into production boxes holding 63 blanks. The boxes are placed in racks for the following day's production. The purpose of this is to permit the edging operation to take place on the un-finished blank at any temperature by adjusting the machine to conform to the standard.

Thus, in each production box, there is a total of 63 unfinished cylinders. One day's production is held at least 34 hours before further processing. The blanks are first reamed. The reamer consists of a twisted tapered and eight fluted tool. The blanks are forced on the reamer by hand to a stop. The position of the stop is adjusted so that sufficient material will be removed from both ends of the blanks when the blank is edged in the next operation.

The reamer revolves at approximately RPM. The edging operation consists in placing a reamed blank on a tapered mandrel and by means of two special cutters working in unison the ends of the blank are formed to conform in couture to a standard template. In each case, the edged blank must rest on a tapered mandrel gauge in exactly the same position as the standard blank which is in the production box. The usual procedure is to make the necessary adjustments of the knives of the first blank which is edged so that it conforms to the standard, and then continue the operation on the rest of the blanks in the production box at the identical position of the first blank.

Note; since there are 63 blanks for each standard blank it will be observed that every 63rd cylinder is checked mandrel gauge. The accuracy of the method and the facility with which it is done depending on the care and skill of the operator. This is the most critical of all the operations.

What fairylike music.

The edging machine revolves at 2, RPM. Following the edging operation is the stamping. This consists in applying a hot printing die to the thick end of the cylinder as it is placed accurately in a vertical position under the die. The heating of the die is done by means of a resistance wire coiled within a hollow torus near the under edge of the circular die. The coiled wire is connected to a source of current and the latter is adjusted by means of a rheostat. The heated died has raised lettering and makes an impression on the end surface of the wax cylinder.

The depressed positive lettering on the cylinder is filled with a thick paste of zinc carbonate, the excess of which is brushed or wiped off after drying. The cylinders are next shaved on a ganged shaving machine consisting of a rough shaving knife free from "blinds" and "lines", accurate concentricity and a minimum of taper. These factors depend on the tension of the driving belt, tension upon the rotating mandrel between centers and the position and sharpness of the knives.

The speed of the mandrel is around 2, RPM.

The finished cylinders are placed in boxes which contain 16 pegs and run down a conveyor. At a point on this conveyor, the cylinders are held and brushed on the inside to remove wax shavings and dust. Cylinders are inspected, packed and placed in the stock room for a minimum of thirty days before shipping. The reinforcing liners are made as follows: Crinoline cloth of specifications given under "Tests", are cut into a trapezoid Paper Products Dept.


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  7. A pack of these are placed in a vise edgewise and thinned glue, one part Le Pages Glue, one part water, brushed onto one slant edge. A liner is then wrapped a tapered mandrel of such size as to fit no too snugly on the molding core. The liner is held on the mandrel by means of two jaws actuated by a foot lever and the lapped edges of the liner glued by means of a gas iron held for an instant along the line of the lap. December 8, [9]. Edison Laboratories had been experimenting with disc records for some 3 years, as the general public seemed to prefer them to cylinders.

    The thick Edison Discs recorded the sound vertically in the groove at a rate of grooves-per-inch GPI rather than the typical laterally-cut groove of around GPI, which gave inch Edison discs a longer playing time up to five minutes than laterals and could only be played to their full advantage on Edison Diamond Disc Phonographs. This combination produced audio fidelity superior to any other home record playing system of the time. However, Edison Discs and phonographs were more expensive than their competitors'. This, together with the incompatibility of the Edison system with other discs and machines, had an adverse effect on Edison's market share.

    With World War I various materials used in Edison Discs came in short supply, and many discs pressed during the war were made hastily and with inferior materials, notably a reformulated phenolic finishing varnish that was introduced when European chemical supplies were cut off. This resulted in problems with surface noise even on new records, and Edison's market share shrank.

    Prior to the war Edison Records started a marketing campaign, hiring prominent singers and vaudeville performers to perform alongside and alternating with Edison records of their performances played on top-of-the-line "Laboratory Model" Edison Diamond Disc Phonographs. At various stages during the performances, all lights in the theater would be darkened and the audience challenged to guess if what they were hearing was live or recorded; accounts often said that much of the audience was astonished when the lights went back up to reveal only the Edison Phonograph on stage.