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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).
Letter discussing the shipment and testing of a Kingston Oil-Vac Tank and alternative suction devices.

Identifier  ExFiles\Box 40\3\  Scan047
Date  15th December 1925
  
X3575?

ROLLS-ROYCE
OF AMERICA, INC.
SPRINGFIELD, MASS.

OyS-E-121525

December 15, 1925.

Mr. E.{Mr Elliott - Chief Engineer} W. Hives,
Rolls-Royce, Ltd.,
Derby, England.

Re Kingston Oil Vac
and Oil Aerator

Dear Hives:

We are shipping to you a Kingston Oil-Vac Tank as promised in our letter of October 7th.

This will be marked for your personal attention.

Unfortunately we have not yet found an opportunity to test the other one which we are keeping however, in the hope of getting it on the axle-test car before long.

The objection to its use as far as I can gather without having tested it is that it may not be possible to use it with the simple induction-pipe suction. This I explained in my letter of Oct. 7th.

In looking around for a suitable suction device the makers have evolved the vane-type oil pump, of which their suggested layout (not very good) is shown in the attached print.

It was proposed that this supplementary oil pump should be used to supply oil to the timing gears only.

A better scheme, tested by Cadillac, is to use the pressure air-pump with reversed connections for producing the suction, (see letter of October 7th.)

We think that all that is necessary is to connect the suction line from the vacuum tank to the air intake of the Silver Ghost air pump.
  
  


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