Pattern 246X Navyphones
The 246X Pattern Navyphones were a family of Graham navyphones (patterns 2461, 2461A, 2462, 2463, 2464, 2465 and 2466) introduced to service at the dawn of the Super-Dreadnought era for service in Orion. They were powered by motor generator supply and were meant to replace the variety of older instruments recently deployed.
This family used a reliable buzzer rather than a ringing bell as a means of drawing attention to an incoming call, and a new Marzi pattern receiver (excepting patts 2462 and 2466).[1]
Otherwise, the advantages offered were cited as:
- retention of previous pattern virtues
- addition of a visible "lamp signal" (except in cabin models... 2462?)
- louder and more reliable buzzers in lieu of bells
- use of an alloy ("Suphalium") to reduce weight
- removable mouthpieces for cleaning
As shown in Torpedo Drill Book, 1914. It looks like an enforcer 'droid. The eyes are a push to call on the left and a call indicating lamp on the right. The lower circle, the receiver horn, the arms have receiver cups on the end, and the torso is a transmitter cone.
Contents
This was billed as a "universal navyphone" and a suitable replacement for between 6[2] and 9[3] previous phones:
- Pattern 2140A Navyphone
- Pattern 2108A Navyphone
- Pattern 2108B Navyphone
- Pattern 2109A Navyphone
- Pattern 2109B Navyphone (not mentioned in TDB 1914)
- Pattern 860 Navyphone (not mentioned in TDB 1914)
- Pattern 862 Navyphone (not mentioned in TDB 1914)
- Pattern 863 Navyphone
- Pattern 1856A Navyphone
It first appeared in Orion.[4] It might be telling that the earlier source cites more roles for it than the later one.
Form Factor
The device appears to be the union of all prior phones in its physical presentation: call-up push, a new call indicating lamp, an underslung receiver horn, a pair of articulatible receiver arms, a front-mounted transmitter. See the images — it looks like an exercise gym set.
A push-to-talk speaking lever beneath the mouthpiece moved aside a solid shutter over the transmitter to reveal a perforated grill and also served to agitate the carbon granules in the transmitter.[5] The right-hand receiver arm activated a switch for answering as in earlier models. The phone weighed 14.5 pounds.[6]
Service Life
There is not much information in this regard, but it may have been superceded by the 2461A soon after introduction.[7] It is not clear whether this or later models ever replaced existing installations.
These phones were variants of the 2461 with a means to attach an external bell. It appears these supplanted the 2461 immediately after Orion.[8]
Form Factor
As 2461.[9]
Service Life
It is not clear whether this or later models ever replaced existing installations.
This is a very modern-looking handset phone for cabin use. It first appeared in Orion.[10]
Form Factor
The device is a small cylinder mounted on the bulkhead with an L-shaped corded handset on a cord resting atop it in a hang-up cradle. Its weight was 5.5 pounds.[11]
Service Life
This device may have been superceded by a model in the 333X line in [TO BE CONTINUED - TONE]
[TO BE CONTINUED - TONE] [TO BE CONTINUED - TONE] [TO BE CONTINUED - TONE] [TO BE CONTINUED - TONE]
It first appeared in Orion.[12]
Form Factor
Service Life
It first appeared in Orion.[13]
Form Factor
Service Life
It first appeared in Orion.[14]
Form Factor
Service Life
It first appeared in Orion.[15]
Form Factor
Service Life
See Also
- Navyphone
- Pattern 210X Navyphones (preceding patterns)
- Pattern 246X Navyphones (succeeding patterns)
Footnotes
- ↑ Torpedo Drill Book, 1914, p. 270.
- ↑ Torpedo Drill Book, 1914, p. 269.
- ↑ Annual Report of the Torpedo School, 1910, p. 156.
- ↑ Torpedo Drill Book, 1914, p. 271.
- ↑ Annual Report of the Torpedo School, 1910, p. 157.
- ↑ Annual Report of the Torpedo School, 1910, p. 157.
- ↑ Torpedo Drill Book, 1914, p. 271.
- ↑ Torpedo Drill Book, 1914, p. 271.
- ↑ Torpedo Drill Book, 1914, p. 271.
- ↑ Torpedo Drill Book, 1914, p. 271.
- ↑ Annual Report of the Torpedo School, 1910, p. 157.
- ↑ Torpedo Drill Book, 1914, p. 271.
- ↑ Torpedo Drill Book, 1914, p. 271.
- ↑ Torpedo Drill Book, 1914, p. 271.
- ↑ Torpedo Drill Book, 1914, p. 271.
Bibliography
