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of Victoria Foundry, Batley
1834 Company established
1875 Large compound beam mill engine. It is not clear whether this engine was made by Bagshaw, or whether their involvement was limited to compounding. This involved supplying a new beam with an upturned horn. To this horn was connected the connecting rod of a new small bore, long stroke piston. The new cylinder was attached to the bed-plate outboard of the crankshaft. 
1883 Provided equipment for the Giants Causeway, Portrush and Bush Valley Railway and Tramway Co, including shafting and gearing.
1884 Partnership change. '... the Partnership heretofore subsisting between us the undersigned, John Bagshaw, Walter Bagshaw, and Charles Horsfield Bagshaw, carrying on business as Iron Founders, Engineers, and Millwrights, at Batley, in the county of York, under the style or firm of J. Bagshaw and Sons, has been this day dissolved by mutual consent. All debts due to or owing by the said late partnership will be received and paid by the said Walter Bagshaw and Charles Horsfield Bagshaw and Arthur Bagshaw, by whom the said business will in future be carried on under the above style or firm...'
1888 Issued catalogue of wrought iron pulleys, shafting, friction couplings and friction clutches. 
1889 'On Friday afternoon last week the new iron foot-bridge across the river Aire at Buck Hill, was formally declared open to the public by the members of the Idle and Baildon Local Boards..... The Idle Local Board, having arranged all preliminaries, accepted the tender of £778 of Messrs J. Bagshaw and Sons, engineers, Batley, in accordance with the design and drawings (approved by all the signatures to the agreement) of Messrs Kendall and Bakes, architects, of Idle. The work has now been completed, the result being seen in the substantial structure now spanning the river on the Charlestown side of Buck Mill, about twenty yards below the old steppingstones, the position being selected by the late General Stansfield. The approaches at either end of the bridge are six feet wide, sloped gradually to level of bridge platform, well macadamised, and protected by fence walls. The superstructure of the bridge, which is painted red, stands on three piers and two abutments, the foundations to the piers and abutments being made a depth of four feet below the bed of the river, and constructed of solid cement concrete. The piers, which have angular cutwaters and abutments, are built of sandstone ashlar, from Windhill Wood End quarries, filled in solid with rubble and cement. The coping, or girder foundation stones, consist of large sandstone ashlar blocks. The superstructure, which is about twelve feet above the river low water level, consists of three spans measuring 88 feet between centre of bearings, making the total length of the bridge 264 feet. The whole of the superstructure is constructed entirely of wrought iron. The main girders are of the single lattice type, seven feet deep, and placed six feet (the width ot the bridge) centres apart with parallel horizontal booms, vertical struts, and diagonal ties placed eight feet centres apart carrying a three-inch plank platform on the bottom flanges. The booms consist of tee irons and flange platers rivetted together. The diagonals are flat bars, and the verticals are angle irons rivetted to booms. The girders are braced together and stiffened by means of a complete and ornamental system of horizontal and diagonal wind bracings on top bottom, and sides. The fixed ends of the girders are carried on bearing plates, bedded on sheet lead upon the foundation stones, and well and securely bolted down, while the end plates of the girders, at the joints of the piers, are also well bolted together. Suitable plank plinth, iron railing, and hand-rail have been placed alongside each girder. ...' 
1891 Released a catalogue of their wrought iron pulleys, shafting and friction couplings. 
1913-15 Produced the J. B. S. cyclecar.