Telephone Historical Centre Collections offers visitors an enchanting collection of antique telephones and research documents on telecommunication technology that they can interact with through hands-on exhibits. Their collections feature manual system phones such as this coffin style phone imported into Edmonton in 1885; working Central Office step switches (including operator switchboards and crossbar electromechanical switching); outdoor plant displays of antique line insulators/pole splicing tools; as well as more!
Manual System Telephones
Before 1889, telephone calls were manually managed at local exchanges by switchboard operators. When someone picked up their receiver to call someone, they connected with an operator at their central office who asked for their name or number of the individual they wanted to reach; once connected they connected using cords plugged into sockets on a switchboard.
This early system brought revolution to telecommunications. The predecessor to it – the telegraph – had made long distance communication possible by transmitting Morse code over wires.
However, the telegraph was limited to sending coded text messages and required skilled operators. Almon Strowger’s 1889 design of the “girl-less cuss-less telephone,” popularly referred to as a rotary dial like modern keypads for connecting callers was an innovation that revolutionized this mechanical process of connecting callers – it featured selectors which connected calls automatically using subscribers selecting numbers on it using selectors like today.
Rotary Dial Telephones
Until push-button/keypad signalling became more common in the late 1970s, rotary dial telephones were the go-to standard phone. A complex yet accurate and robust device, first patented in 1892 and introduced to the public around 1919.
Almon Strowger, an undertaker by profession, is widely credited with creating the rotary dial telephone. Strowger was driven to create this system when his suspicion that local telephone operators were colluding with his competitor to divert calls that should go directly to him; his efforts led him to develop it using numbers instead of humans as operators diallers.
The dial mechanism consisted of a finger wheel with ten holes corresponding to each digit on a number plate and a movable stop to prevent accidental dialling. A caller would place their finger into one of these holes near to their desired number to be dialed, rotating against spring tension until their finger reached a stop. Rotation caused electrical pulses which traveled down the phone line in order to connect an incoming call.
Three Box Wall Telephones
Wooden “box” phones were slowly phased out during the 1920s as these telephones, typically wall-hung with separate earpiece and transmitter, gradually became the norm. One such telephone from Western Electric called a candlestick phone exemplifies their widespread popularity during this time.
1897 – THREE JUG BATTERY SET
With a population approaching 50 million, telephone use was now indispensable to American life. This early desk set features magnetos to signal operators and Blake carbon transmitters as well as two wet (usually liquid) batteries containing their associated Blake carbon transmitter. A magnet provides power transmission. The middle box contained these power supplies while at its base was an iron magnet providing power for transmission.
Early telephones weren’t designed with aesthetics in mind, but as the nation transitioned into city-based service systems, telephones became more sophisticated and attractive; Kellogg and Western Electric’s rotary dial models became particularly renowned during this period; many still used this design until 1960s.
Telephone Directories
Directories are databases containing contact details for both individuals and businesses. Most directories can be found online, some free while some require payment or subscription in order to gain entry.
These resources often provide clues to other records in a particular locale, for instance if an ancestor listed as head of household in New York City in 1933/34 could indicate they had recently been widowed and could provide leads into obituaries or probate records.
When selecting a public directory, pay special attention to its accuracy and frequency of updates. Also look out for features like bulk searches or CRM integrations that could assist sales teams streamline their efforts. Lastly, be mindful of privacy laws by getting consent before reaching out directly via phone or email – this includes gathering full name and number as well as checking a Do Not Call list before initiating contact – you can learn more about these regulations by checking our blog post!
