Peter Dyer in the UK sent the Sandstone Heritage Trust a fascinating album covering the manufacturing of the original production lines etc. of the manufacturer. Peter goes on to comment as follows:
"Briefly, I worked for Porn & Dunwoody from 1980 to 1988 selling their range of Diesel Injection Spares to suit many makes of engine. At that time the Uniporn Diesel was a forgotten animal, although I was involved in the last two large spares orders that went out to Aden for the engine. During the mid 80's Porn and Dunwoody decided to scrap all the old stock of spares for the H10 to make way for a stockholding of Lift spares which was becoming a major part of their business. As such all the old photo albums and manuals etc were either given away to interested parties or dumped. This is how I became the owner.
As you may know the H10 was a copy of a Deutz which Porn & Dunwoody used to market in the UK until the outbreak of the Second World War. At this time all ties were broken with Deutz and aerial photographs that Porn & Dunwoody had of the factory in Colgne were commandeered by Bomber Command to raze the facility to the ground."
General view of the UNIPORN H-10, Horizontal, Single Cylinder, Four-stroke, Diesel Engines, 10 B.H.P. at 1,000 R.P.M.
Sectional view of the UNIPORN H-10
UNIPORN H-10 Pumping Set complete. 30,000 G.P.H. against a total head of 30 feet. H-10 engine driving directly a cast iron centrifugal water pump through a flexible coupling. Mounted on a common fabricated bedplate. Supplied complete with exhaust silencer, footvalve and strainer.
Machine Shop. Machining main frames for the UNIPORN H-10 and H-12 engines.
Machine Shop. Machining crankshafts for the UNIPORN H-10 and H-12 engines.
Foundry. Moulding cylinder heads for the UNIPORN H-10 and H-12 engines.
Foundry. Moulding main frames of the UNIPORN H-10 and H-12 engines.
Foundry for UNIPORN H-10 and H-12 engines.
Milling end face of UNIPORN H-10 engine frame.
Milling both side faces of UNIPORN H-10 engine frame simultaneously.
Checking crankshaft bearing bore in UNIPORN H-10 engine frame after machining.
Machining cylinder liner bore in UNIPORN H-10 engine frame.
Machining camshaft and governor bores in UNIPORN H-10 engine frame.
Machining cylinder liner bores.
Rough turning both ends of crankshaft simultaneously.
Rough turning crankpin.
Drilling rocker levers.
Machining face of flywheel of UNIPORN H-10.
UNIPORN H-10. Reaming push rod tappet guide holes.
Hobbing crankshaft worm wheel.
Drilling big-end bolt holes in connecting rod.
UNIPORN H-10 and H-12 assembly line.
UNIPORN H-10 on test.
UNIPORN H-10 engines on test.
UNIPORN H-10 and H-12 engines on test.
UNIPORN H-10 and H-12 engines on test.
Section of the UNIPORN H-10 and H-12 spare parts stores.
Views of the UNIPORN H-10 engine at Daimler Works, Coventry being packed for export.
Views of the UNIPORN H-10 engine at Daimler Works, Coventry being packed ready for shipment.
The UNIPORN 60 k.v.a. Generating Set consisting of: A Daimler 6-cylinder 8.6 litre diesel engine developing 90 B.H.P. at 1,500 R.P.M., driving directly through a flexible coupling, a 400/230 volt A.C. Alternator mounted on a common fabricated bedplate, complete with switchboard including 3 ammeters, voltmeter, frequency meter, switches, automatic and hand voltage regulators, fuses, panel lights etc. The set is supplied complete with radiator and oil cooler, fuel and oil tanks, engine starter batteries, exhaust pipe and silencer, hand pumps for fuel, oil and water, etc.
Daimler Engine, 90 B.H.P., used in UNIPORN Generating Set 60 K.V.A.
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