Patent GB-190712390-A (GB)
Title: Improvements in Apparatus for Delivering Measured Quantities of Liquid.
Inventor: POWLEY ROBERT
Filed: 1907-05-28
Granted: 1908-05-14
Abstract: 12,390. Powley, R., and Powley, M. May 28. Measured quantities, delivering.- In apparatus for delivermg measured quantities of syrup &c., especially applicable to the manufacture of aerated waters, the inlet valve of a measuring-chamber of adjustable capacity is closed and the outlet opened by means of a sliding tube operated by the receptacle to be filled. The measuring-chamber 2, Fig. 1, provided with either solid or partly glazed sides, or with a glass lining 3, is closed by a cover 4 and fitted with a piston 5. Into the piston is screwed a rod 12 provided with an axial hole 13 and attached by means of a collar to a threaded sleeve 14. The rotation of the sleeve within the threaded aperture in the cover 4 varies the capacity of the measuring-chamber. Within the piston 5 is a chamber 7 containing a glass float 9 and rubber seating 10. Radial holes 8 connect the float-chamber with the measuring- chamber. The syrup conveyed directly from its receptacle without the use of an intermediate tank enters a passage 26 adapted to be closed by a valve 27. The valve-rod 29 has a cupped end 29<a> and is carried by a spring-controlled ball valve 20 contained in a chamber 17, which slides in a tube 16 screwed into an extension 15 of the measuring-chamber. A tube 18 is screwed into the chamber 17 and bears a collar 22 adapted to fit the neck of the bottle &c. to be filled. The external surface of the tube 16 is threaded, and the tube can be screwed into any suitable support for the apparatus. The valve 27 being open, the syrup enters through the passage 26 and fills the part of the measuring-chamber below the piston, air escaping by the passages 8 and aperture 13. When the liquid enters the chamber 7, the valve 9 is raised against its seating 10 and so closes the aperture 13. When the bottle is placed on a platform arranged at a suitable distance below the apparatus, and is raised as usual by means of a treadle &c., the tube 18 and chamber 17 are forced upwards against the action of the spring 23. The ball valve 20, which is normally pressed against its seating 19 by means of the spring 21, raises the valve 27 until its own motion is stopped by the latter coming into contact with the seating 28. Thereupon the continued sliding movement of the chamber 17 moves its seating 19 away from the ball valve 20, further compressing the spring 21 and opening the outlet from the measuring-chamber to the tube 18, through which the liquid falls by gravitation into the bottle. On the removal of the bottle, the chamber 17 is lowered by the return movement of the spring 23, the outlet valve 20 closes, and the valve 27 falls and opens the inlet passage 26. In a modification of the measuring-chamber shown in Fig. 2, a cylindrical projection 34 of a disk 30 attached to the piston 5 surrounds the float 9, and is slotted longitudinally, as shown in Fig. 3, to prevent the outrush of air from raising the float and closing the aperture 13 when the measuring-chamber is being filled ; the threaded piston-rod 38 is moved by the rotation of the nut 36 to which a collar 37 is fixed.