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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Advertisement and data proof for snap terminals and various electrical switches from H. A. Douglas Mfg. Co.

Identifier  ExFiles\Box 168b\2\  img258
Date  17th August 1932 guessed
  
WHY DEPEND ON HU... IN TERM...
SNAP TERMINAL DATA PROOF
60 Amp. Capacity
32 lbs. pressure
3.5 millivolt drop
When Weathered 2 years
5.2 millivolt drop

30 Amp. Capacity
24 lbs. pressure
2.4 millivolt drop
When Weathered 2 years
5 millivolt drop

15 Amp. Capacity
11 lbs. pressure
1.75 millivolt drop
When Weathered 2 years
4.1 millivolt drop

The new long taper terminal makes above possible

H.{Arthur M. Hanbury - Head Complaints} A.{Mr Adams} DOUGLAS MFG. CO.
BRONSON,
MICH.

S
N
A
P

D.{John DeLooze - Company Secretary} P. SOCKET
NO. 14200

SELECTIVE TOGGLE SWITCH
NO. 5074
(ON OFF)

PUSH & PULL SW.
NO. 5075

FOOT CHASSIS LIGHT CONTROL
NO. 5076

IGNITION & LIGHTING DASH SWITCH
No. 5077
(IGNITION OFF PARK)

FOOL PROOF
  
  


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