"ملف ١٨/ ١١ إصلاحات المباني - مباني الوكالة - مراسلات بخصوصها - مضخات المياه لوكالة البحرين." [و‎‎٩] (١٥٠/١٧)

Blake’s Hydrams
3
59 years’
Experience.
Materials of
Construction.
Strength of
Design.
Ease of
Adjustment.
No Oiling
or Packing.
No cost for
Motive Power
No attention
Required.
Cost of
Repairs and
Renewals.
We have now been making and fixing Hydrams for 59 years, and
our experience now enables us to turn out a machine of the most
perfect type for the situation in which it is required to work.
Our machines are of extraordinarily strong and massive con
struction. All the valves and fittings are of the best gun-metal or
bronze.
The bodies and air vessels are of massive cast-iron of great
strength and thickness. Instead of the thin flanges ordinarily
used by other firms, these are made of great thickness to resist
great strain and rough usage.
All other Ram makers fit the ordinary wrought-iron nuts on
the bolts used in their machines. These generally rust fast after
a few months, and often when the ram has to be examined, it
is necessary to cut the bolts before the flanges can be removed.
To avoid this difficulty, we have for over 50 years always fitted
gun-metal or bronze nuts to the bolts of our Hydrams, and make
them of double depth to prevent the thread stripping. These can be
removed with the greatest ease even 20 years after they are put on.
This is a very important feature for a machine that has always to
work in water or a damp atmosphere.
The waste, delivery, and suction valves of most of the Hydrams
are so made that a strong boy or farm labourer can put in a new
set of clacks in a few minutes, as no filing, grinding, or fitting is
necessary.
The Hydrams never require oiling nor packing, and there is no
cost whatever for motive power, as that is obtained from the water
passing through the Hydram.
They require little, if any, attention further than a casual
inspection, say, once a month, after they have been properly
adjusted, and many of our Hydrams have worked 12 months at a
time without being seen once. See testimonial on page 34, referring
to a Hydram which had been working for seven years without
stopping once.
The design of the Hydram is so simple, and the wear and tear so
slight, that except for the very large sizes, the annual cost of repairs
and renewals to the Hydrams only averages from 3/- to 10/- even
Registered Trade Mark—“ HYDRAM.”