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Tyler Apparatus Co of Gerrard Street, London, makers of theatre organs, optical equipment, motorcycles and cars. Made the Tyler Orchestral Grand, a theatre organ which included piano, reed organ, bells, zither and harp.
See also -
1912 Company established as a subsidiary of Walter Tyler Ltd
1914 Opticians and lantern manufacturers. Walter Tyler were proprietors of the Tyler Apparatus Co carrying on business at the same address, manufacturing and dealing in all kinds of optical lanterns and cinematograph machines and every appliance for electric theatres; also photographic studio, making lantern slides and lighting effects. 
The company began making motorcycles by offering lightweight motorcycles with a choice of Precision two-stroke or four-stroke engines, both in a form of unit construction with their two-speed gearbox. Under this name they had limited sales but were more successful later as Metro-Tyler
1915 Produced the Victor motorcar. See list of the models and prices 1917 Red Book.
1915-16 Produced motorcycles; for a list of the models and prices see the 1917 Red Book
1916 Scheme of arrangement for winding up the company
1921 Court approval of alteration of objects of company
1923 Company dissolved .