top of page
Armstrong Siddeley Heritage Trust
Siddeley Deasy this page is under development
The Deasy Motor Company was formed by Henry Deasy in 1906 with a plan to build 250 cars per year. Edmund W. Lewis was the chief engineer and works manager. From the outset, Deasy and Lewis were at loggerheads over how things should progress. The main problem was the lack of urgency in getting vehicles to customers; this situation led to Deasy resigning from the company in 1908.
John Siddeley joined the company in 1909 and immediately set about reorganizing production methods. By 1910, two new models, designed by John Siddeley, were advertised as “J.D.S Type Deasys.” These models had engines of 15 hp and 25 hp, using chassis sourced from Rover and engines supplied by Daimler and Aster.
Ipso dipso
Siddeley Deasy 1913 18/24 model
By 1911, the model range had been enlarged to four models with 12, 14, 18, and 24 hp engines. Here, we display images and technical details from that year's brochure.
Special Light-Weight Torpedo for 14/20 18/24 24/30 hp models
12 hp model with a Standard Torpedo Body
Two-Seat Phaeton with optional Dickey Seat
Torpedo Phaeton four to five seater
Open Drive Cabriolet
Interior Drive two seat Cabriolet
Open Drive Limousine
Interior Drive Sporting Landaulette
Exterior Drive Limousine/Landaulette
Technical details of the 1911 models
Price list for the 1911 models1911
Siddeley Deasy London Ambulance
The 6 cylinder engine of the 24/30hp car. The extra radiator required by this model is very evident in these images.
A series of Family pictures of a Siddeley Deasy 14hp c1915, the same lady is in all of the pictures
This photo is of an early 12hp, which is evident from the lack of detail on the bonnet
Family picture of a Siddeley Deasy 14hp circa1915
Picture of a circa 1914 4-cylinder Sideley Deasy. Who is the man in the bowler hat? A gentlemans gentleman perhaps.
When World War I was declared, J. D. Siddeley Deasy urged his younger employees to enlist in the British Armed Forces; when orders came in from the British and Russian War Departments for Ambulances and Field kitchens, he sent out telegrams recalling them to help fill these orders.
A Fleet of Siddeley-Deasy Ambulances, presented to His Majesty the King by various Indian Princes. Photograph taken from an advertisement in "The Autocar"in 1916.
_JPG.jpg)
Siddeley Ambulance in France during World War I
Siddeley-Deasy ambulance which saved over 200 people in two years, France, WWI
.jpg)
Siddeley Deasy c 1914 24/30 with Connaught Limousine Body
.jpg)
Siddeley Deasy City of London Ambulance
The images below depict a 1912 Siddeley Deasy, with a four-cylinder 18/24 engine and is equipped with a Light Weight Torpedo Body. This car was sold at auction by Burns & Co., Auctions of Victoria, Australia, in September 2024. All images are credited to Burns.
https://burnsandcoauctions.com.au/portfolio/siddley-deasy/
https://burnsandcoauctions.com.au/portfolio/siddley-deasy/
These images highlight the car's period lighting. The left image shows the Lucas King of the Road headlamp, followed by the diver's helmet-style rear lamp; both are powered by acetylene gas. The final image shows the oil-fired side lamp.
The left image is of the acetylene gas generator for the head and rear lights. In the centre, we have the offside running board with a spare petrol can, a jack, and a spare wheel. Note that the bulb-powered horn was conveniently to hand for the driver to announce his approach to unwitting pedestrians. The final image is ???
bottom of page