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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).
Promotional leaflet for the 'Ex-a-gun' forced lubrication system, listing parts, prices, and complete outfits.

Identifier  ExFiles\Box 42\5\  Scan133
Date  8th November 1921 guessed
  
Positively forces grease under a pressure of 500 lbs to the sq. inch.
Ex-a-gun FORCED LUBRICATION SYSTEM
LIST PRICES OF PARTS.
(All male and female connections screwed 1/8" Gas Threads).
POLISHED BRASS "EX-A-GUN."
With Easy Grease Filler.
18" flexible metallic tube and terminal connector, in wood case as illustrated, Price 28/-.
(Barrel 8" long x 1 3/4" diameter. Holds about 1-lb. grease).
Brass Terminal Connector, 6/6
Flexible Metallic Extension 8/6
1/8" Gas Taps, 3/- each.
“EX-A-GUN” TERMINALS.
Standard Terminal. (screwed 1/8" gas thread).
No. 2 Terminal. (with cup Type adapter)
No. 3 Terminal. (with plug Type adapter.)
Standard Terminal. Brass 9d. each, N. Plated 10d. each.
No. 2 or No. 3 Terminal. Brass Size up to 1/4" to 3/8" to 1/2". Price 1/-. 1/3 1/5. N. Plated Size up to 1/4" to 3/8" to 1/2". Price 1/1 1/4 1/6.
“Ex-a-Gun” Terminals cost less than old fashioned Grease Cups.

Inexpensive in Cost—Wonderful in Operation.
Ex-a-gun FORCED LUBRICATION SYSTEM
The “EX-A-GUN” forced lubrication system is the most efficient and practicable necessity of the motoring age. It positively forces new clean grease into every bearing, shackle bolt or pin, under a pressure of 500/600 lbs. to the square inch. It reduces depreciation, maintenance and replacement cost. It gives longer life to every chassis unit.
The “EX-A-GUN” grease terminal is cheap, efficient and neat in appearance. It costs less than an old fashioned grease cup. It is screwed permanently into position and will not work loose or become lost. The ball of the check valve is held in position by an exceptionally strong spring, preventing dirt and water from entering, and is only opened when the terminal connector is applied.
Standard “EX-A-GUN” Grease Terminal, FULL SIZE.
INSTRUCTIONS FOR ORDERING “EX-A-GUN” TERMINALS.
STANDARD “EX-A-GUN” TERMINALS (illustrated full size above). These are screwed 1/8" gas thread, and will be found suitable for replacing a large percentage of greasers which are fitted to British, American and other foreign cars. Terminals are, however, supplied with any other special threads.
No. 2 AND No. 3 TERMINALS. These embody the standard terminal with additional cup or plug type adapter. Each type is supplied to any size or rate of thread, to replace loose fitting grease cups.
COMPLETE OUTFIT ORDERS. Specify the make of Car, the particular model, and year of manufacture. In many instances non-standard renewal bolts and greasers have been re-fitted to chassis, and to enable correct outfits to be supplied, clients should specify the type, size, rate of thread and number of each particular terminal required, or send a grease cup or greaser as a pattern. (See attached Order Form).
“Ex-a-Gun” Terminals never work loose or become lost.

The most practicable Invention of the motoring age.
Ex-a-gun FORCED LUBRICATION SYSTEM
COMPLETE OUTFITS.
Supplied for every make of Car.
SCRIPPS-BOOTH OUTFIT - Price, 45/-
(Nickel plated terminals). (Postage, 1/6).
The above is an illustrated example of the complete “Ex-a-Gun” Outfit as supplied for 1914/15 Model Scripps-Booth Cars, which comprises:—
The “Ex-A-Gun” with metallic flexible tube and terminal connector.
2 Standard Terminals for cantilever spring brackets.
2 ” ” ” steering tie-rod pins.
2 ” ” ” front hub caps.
3 ” ” ” steering box, clutch pedal and torque rod bolt.
8 No. 3 (small) Terminals for spring shackle bolts.
6 ” (large) ” ” king and spring shackle bolts.
1 ” (special) ” ” speedometer drive spindle.
Total 24 Terminals.
NOTE.—If non-standard shackle bolts or pins have been subsequently fitted to the chassis send size, type and number of non-standard terminals required.
Similar “Ex-a-Gun” Outfits supplied for any Car.
Price according to the number and size of grease terminals required. (See Price List of Terminals).
Gives 100% longer life to every chassis unit.
  
  


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