It was pretty infrequent. Mostly hourly. Some trains from leeds definitely terminated at Keighley. There was a reversing siding where Asda is now. There were no Leeds - Bradford FS services. Cononley, Steeton and Silsden, Crossflats, Saltaire, Fitzwilliam, Baildon, Kirkstall Forge and Apperley bridge were not there till about 1980.
The loco hauled trains to Carlisle ( and on to Glasgow) only stopped at Keighley and Bingley
Of course the platforms on the through lines at Shipley were a 1980's addition. The DMU's between Leeds and Keighley/Skipton did reversals at Shipley that have been.
Long thread about Shipley and its history here -
https://www.railforums.co.uk/threads/shipley-triangle.178047/