Geograph - photograph every grid square

Also known as Wiseman Street Mills. I missed this running by about two weeks in 1979. It is now preserved and can be turned by an electric motor.
Information from Colin Bowden: - Horizontal cross compound gear drive steam engine. Probably built by W. & J. Yates, Blackburn in 1887. Rebuilt by Burnley Ironworks Co. Ltd., Burnley, as works No.99 in 1912. New high pressure cylinder by Cole, Marchent & Morley Ltd., Bradford in 1947. Stopped when the mill closed in 1979. Preserved. Cylinders are 17.5/8" & 30" x 42". Corliss valves on the high pressure cylinder with governor-controlled trip gear and a simple slide valve on the low pressure cylinder. Steam pressure: c.140-150 psi, 60-62 rpm, 350 horsepower. Flywheel: 14ft diameter.

This view shows the low pressure side single slipper crosshead and its guide. The connecting rod passes to the left and the piston rod to the right. The brass slot and bobbin assembly is to accommodate the drive to the indicator. I've never seen another quite like it.