Abstract: The invention relates to an adapter for driven tools such as drilling or milling tools, for adapting an externally fed driven tool for use in a thru coolant system comprising: a) a cylindrical inner sleeve, b) an outer sleeve adapted to rotate relative to the inner sleeve, c) a delivery pipe to deliver coolant to the outer sleeve, and d) at least one coolant flow channel through the outer sleeve and through the inner sleeve to allow flow of coolant from the delivery pipe to the collet, and e) a seal at one end of the inner sleeve having an aperture to receive the cutting tool whereby to allow the blunt end of the tool to engage the collet, in use coolant can pass through the outer sleeve, through the inner sleeve into the collet, and to the cutting tool whilst said inner sleeve rotates with said machine output spindle and the outer sleeve remains static.

Abstract: The invention relates to an adapter for driven tools such as drilling or milling tools, for adapting an externally fed driven tool for use in a thru coolant system comprising: a) a cylindrical inner sleeve, b) an outer sleeve adapted to rotate relative to the inner sleeve, c) a delivery pipe to deliver coolant to the outer sleeve, and d) at least one coolant flow channel through the outer sleeve and through the inner sleeve to allow flow of coolant from the delivery pipe to the collet, and e) a seal at one end of the inner sleeve having an aperture to receive the cutting tool whereby to allow the blunt end of the tool to engage the collet, in use coolant can pass through the outer sleeve, through the inner sleeve into the collet, and to the cutting tool whilst said inner sleeve rotates with said machine output spindle and the outer sleeve remains static.

Abstract: A chair which has a seat portion and a backrest portion which are mounted on a wheeled/castered base support, there being means for adjusting the height and the inclination of the seat parts/backrest portion as a unit the chair being provided with two or more of the following features: a) armrests which are adjustable in height and in relation to the seat/backrest unit; b) an adjustable lumbar support; c) a pair of laterally adjustable pelvic constraints; d) a pair of laterally adjustable thigh abductors; e) an adjustable headrest; f) a pair of vertically and laterally adjustable footrests; g) a pair of laterally adjustable head constraints to constrain an occupants head in a lateral direction; h) a detachable tray.