A long-forgotten maker, Timbrell & Wright Machine Tool & Engineering was based in Slaney Street, Birmingham. They appeared to have been active from the early 1920s - though possibly much earlier - and were best known for their small, robust capstan lathes, details of which can be found here.
Their milling machines are virtually unknown with the example below, a robust, simple machine of the "stub-horizontal" type, probably manufactured between 1920 and 1940 - and one of very few survivors. Much modified, with a belt-cum-chain drive to a sprocket overhung on the rear of the spindle, it would have been driven, when new, by a 3-step flat-belt pulley mounted between the plain, bronze spindle bearings and connected to either a side-mounted countershaft or (more likely) direct from overhead factory line shifting.
Intended only for very simple production jobs, in its original form the miller would almost certainly have had its table moved on its longitudinal travel by a quick-action lever (working through rack-and-pinion gearing) with a jig holding the workpiece and an unskilled operative employed to load and unload it and manipulate the controls. Altering the table's vertical position - following contemporary practice on this class of machine - was also by means of a lever, this lifting the (wide and rigid) knee to allow the adjustment of a stop screw onto which the knee was then dropped. To make the machine more suitable for general work, an enthusiastic previous owner has fitted  feedscrews to both the  horizontal and vertical travels - a worthwhile improvement that allows anyone (with an ingenious turn of mind) to concoct all manner of operating procedures and accessories to overcome the Timbrell & Wright's originally very limited capabilities.