Felt and tarrant comptometer serial number. Comptometer

Felt and tarrant comptometer serial number Rating: 8,2/10 121 reviews

Calculator, Desk

felt and tarrant comptometer serial number

The is made of frosted glass, with clear viewing windows for the numeral wheels below. See this webpage about the legal battle to remove these machines from the marketplace. We estimated the condition rating at 2,2. The Model K is housed in a pressed-metal casing with a dark chocolate-brown painted finish. The Comptometer The Comptometer was invented by the American Dorr Eugene Felt and was patented in 1887.

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Key

felt and tarrant comptometer serial number

Thank You, Ernie Jorgenson From: Subject: Comptometer color Date: Wed, 11 Nov 1998 I noticed, that in Februrary a question concerning the Comptometer copper finish was asked. This one is in excellent condition and is fully functional. The machine still responds immediately to the keys, but the power to drive the mechanism is now provided by an internal electric motor rather than by the operator's fingers. It has 9 rows of 1 thru 9 keys and all key tabs are present. Any Comptometers that seem to be made of shiny copper have had their original paint stripped or polished away. It was manufactured from the late 1880s into the 1960s.

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Calculator, Desk

felt and tarrant comptometer serial number

Click here for more information about. A power-assisted mechanism with an electric motor drive similar to an electric typewriter was introduced in the Model K in 1934. If accepted each order is filled by allocating to it the purchased comptometer designated by its serial number. The zeroing mechanism often fails to fully reset when the handle is moved slowly. See the Smith Premier One Typewriter for the whole Corona story. Barrett of Hutchinson, Kansas on February 16, 1950. It was invented by the American Dorr E.

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Key

felt and tarrant comptometer serial number

In contrast a modern electronic calculator only has 10 digit keys so the digits of each number have to be entered one at a time, serially, which is slower. The sub-frame could be removed relatively easily, which greatly simplified cleaning and adjustment. The first machines of this type were built by Dorr E. Embossed decoration on the side panels is the same colour as rest of the case. This 10-column Model J Comptometer looks rather different from its original state.

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MODEL H COMPTOMETER CALCULATOR Antique Felt & Terrant Mfg Co Vtg Adding Machine

felt and tarrant comptometer serial number

This is an early 1904 machine and was manufactured in St Louis just prior to the Burroughs factory move to Detroit. Almost all Comptometers are in copper patena or polished copper housings. We purchased this particular machine about 16 years ago and we do believe it was working at that time but we have never actually worked it ourselves nor do we know how to operate it. This amount includes applicable customs duties, taxes, brokerage and other fees. No automatic Controlled-key release button on the left of keyboard. Seems to me that they used to be a wonderful source of tools, supplies, and parts for typewriters.

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Notes on Comptometers

felt and tarrant comptometer serial number

The Payroll Department was next to my area and I recall about 50 women working comptometers to compute a 5,000 man, factory, piece work, weekly payroll. It has unbelievable math instructions. This machine has been fully and beautifully restored and has a condition rating of 1,1. It has its fold down shelf and original front and side panels of beveled plate glass. I first met Brooke Boering at the home of Bob Otnes in Palo Alto many years ago. It comes with a copy of the original 1887 patent along with copies of the patent drawings. In particular, I like the wooded cased ones made from about 1887 to some time shortly after 1900, when the model A came out first duplex model, glass plate in front.

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MODEL H COMPTOMETER CALCULATOR Antique Felt & Terrant Mfg Co Vtg Adding Machine

felt and tarrant comptometer serial number

This is an early machine and was manufactured in Detroit either late in 1906 or early 1907. I'd be interested in exchanging some pics. It contains mostly office gossip, birth and marriage announcements, and success stories. According to Boering, cumulative Comptometer sales were approximately 6,300 units by 1903; 15,650 by 1909; 77,650 by 1920; and 126,150 by 1926. Size: 310 mm wide, 375 mm deep, 150 mm high 12.

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COMPTOMETER Logo

felt and tarrant comptometer serial number

Still I was fascinated by the dates on the stainless steel nameplate, which listed the first patent date as 1887! In fact, in over 25 years of collecting I have never before seen one. I do not know when it ended its publication, but the copyright was renewed in 1948 so maybe it was still being published then or the company had plans to restart publication. Its various models were in production from 1888 to 1961, peaking during the 1930s. In one of the photos we show it side by side with a Comptometer and one can easily see the close comparison. These courses taught techniques for performing calculations quickly and efficiently. He held more than 40 patents for the Comptometer mechanism, and was still active in his retirement in 1950.

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DigiBarn Calculation Devices: Comptometers by the Felt & Tarrant Manufacturing Company

felt and tarrant comptometer serial number

We are selling the case only, no machine is included. Because I am curios about it too. Maybe this could be reversed, maybe not. To endeavour to do this on a short keyboard would have been difficult if not impossible. I am unable to respond to the group in general so I have responded to members expressing interest.

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COMPTOMETER Logo

felt and tarrant comptometer serial number

The case is in very good-to-excellent condition. Table Gives the decimal equivalents of a Cwt. This reduces the need for hand movement, and is easier to do without looking. Any carry operation from a covered digit to a still visible one is suppressed. It is marked with the Style One and has a 1 model number.

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