1184
THE NEW ZEALAND GAZETTE.
[No. 52.

from a moving part of the pump, substantially as described. (19.) The combination with a steam-cylinder and its steam-piston and valve of a valve-actuating piston on the valve-rod, and valve mechanism actuated by the steam-piston and controlling the admission and exhaust of steam for moving the valve-actuating piston, said valve mechanism having separate ports for the admission and exhaust of steam, substantially as described. (20.) The combination with a steam-cylinder and its steam-piston and valve of valve-actuating pistons on the valve-rod at opposite sides of the valve, and valve mechanism actuated by the steam-piston and controlling the admission and exhaust of steam outside said pistons for moving the valve in opposite directions, said valve mechanism having separate ports for the admission and exhaust of steam, substantially as described. (21.) The combination with a steam-cylinder and its steam-piston and valve of valve-actuating pistons on the valve-rod, and separate valves for the valve-actuating pistons actuated by the steam-piston and controlling the admission and exhaust of steam for moving the valve in opposite directions, substantially as described. (22.) The combination with two steam-cylinders arranged side by side of valve mechanism for said cylinders, a single steam-chest for said cylinders, and steam-ports for the cylinders controlled by said valve mechanism for admitting steam to one or both of the cylinders independently of the space within the valve-chest, and for exhausting one or both of said cylinders to the space within the valve-chest, substantially as described. (23.) The combination with two steam-cylinders arranged side by side of separate valves for said cylinders, a single steam-chest for said cylinders, and separate steam-ports for the cylinders controlled by said valves for admitting steam to one or both of the cylinders independently of the space within the valve-chest and for exhausting one or both of said cylinders to the space within the valve-chest, substantially as described. (24.) The combination with two steam-cylinders arranged side by side of a steam-chest having valve-chambers and ports for the two cylinders at opposite ends of the chest, piston-valves for the two cylinders in said chambers, and means for moving said valves in opposite directions, substantially as described. (25.) The combination with two steam-cylinders arranged side by side of a steam-chest having valve-chambers and ports for the two cylinders at opposite ends of the chest, piston-valves for the two cylinders in said chambers, and connections between the valves whereby the valves move together in both directions, substantially as described. (26.) The combination with high- and low-pressure cylinders arranged side by side of a single steam-chest for the cylinders, valves for the two cylinders, and steam-ports for the cylinders controlled by said valves to admit steam to the high-pressure cylinder independently of the space within the steam-chest, and to exhaust the high-pressure cylinder into the space within the steam-chest, and to admit steam to the low-pressure cylinder from the space within the steam-chest, and to exhaust the low-pressure cylinder independently of the space within the steam-chest, substantially as described. (27.) The combination with the steam-cylinder A of steam-chest G, having valve-chamber K, piston-valve L, in said chamber, admission-port H connecting with the valve-chamber independently of the space within the steam-chest, exhaust-port I communicating with the space within the steam-chest, and ports controlled by said valve for admitting steam to the cylinder from admission-port H and for exhausting steam from cylinder A to the space within the steam-chest, substantially as described. (28.) The combination with the high- and low-pressure cylinders A, A¹, of steam-chest G, valve-chambers K, K¹, at opposite ends of the steam-chest and opening into the space between the valve-chambers, piston-valves L, L¹, in said valve-chambers, admission-port H connecting with the valve-chamber K independently of the space between the valve-chambers, exhaust-port I communicating with the valve-chamber K¹, and ports controlled by said valves for admitting steam to the cylinder A from admission-port H and exhausting into the space between the valve-chambers and for admitting steam from the space between the valve-chambers to the cylinder A¹ and exhausting from the cylinder A¹ to the exhaust-port I, substantially as described. (29.) The combination with the high- and low-pressure cylinders A, A¹, of steam-chest G, having valve-chambers K, K¹, at opposite ends of the steam-chest and opening at their inner ends into the space between the valve-chambers, exhaust-passage i², and admission-passage k², connecting the outer ends of the valve-chambers with the space between the valve-chambers, admission-port H communicating with the valve-chamber K, exhaust-port I communicating with the valve-chamber K¹, and ports controlled by said valves for admitting steam from admission-port H to the cylinder A, and exhausting from cylinder A to the space between the valve-chambers from the inner end of valve-chamber K or through passage i², and for admitting steam to the cylinder A¹ from the space between the valve-

chambers through the inner end of the valve-chamber K or through passage k², and for exhausting from cylinder A¹ through exhaust-port I, substantially as described. (30.) Steam-chest G, having valve-chambers K, K¹, and piston-valves L, L¹, in said chambers and connected together, pistons M, M¹, outside the valves, and steam-chambers for said pistons, substantially as described. (31.) Steam-chest G, having valve-chambers K, K¹, and piston-valves L, L¹, in said chambers and connected together, piston M, M¹, outside the valves, steam-chambers for said pistons, admission- and exhaust-ports for said steam-chambers, and control-valves m, m¹, at opposite ends of the steam-chest, substantially as described. (32.) Steam-chest G, having valve-chambers K, K¹, and piston-valves L, L¹, in said chambers and connected together, pistons M, M¹, outside the valves, admission- and exhaust-ports 1, 2, 3, 4, at opposite ends of the steam-chest for admitting and exhausting steam outside said pistons, and control-valves m, m¹, substantially as described. (33.) Steam-chest G, having steam-ports for two cylinders at opposite ends, and admission- and exhaust-ports H, I, and valves controlling the ports for admitting steam from port H independently of the space within the steam-chest between the valves, and for exhausting through said space, substantially as described. (34.) Steam-chest G, having valve-chambers K, K¹, for two cylinders at opposite ends, admission- and exhaust-ports H, I, and ports connecting the cylinder-ports with the admission- and exhaust-ports H, I, of the valve-chest, and connected piston-valves L, L¹, in said valve-chambers, substantially as described. (35.) Steam-chest G, having ports for two cylinders at opposite ends, admission-port H connecting with one of the cylinders, exhaust-port I connecting with the other cylinder, and ports connecting each of said cylinders with the space within the valve-chest for conducting the exhaust from one cylinder through the valve-chest to the other cylinder, substantially as described. (36.) Steam-chest G, having valve-chambers K, K¹, at opposite ends, admission- and exhaust-ports H, I, connecting respectively with valve-chambers K, K¹, ports for connecting said valve-chambers with the steam-cylinder ports of two steam-cylinders, and passages i², k², connecting the outer exhaust-port of chamber K and the outer admission-port of chamber K¹ with a receiver between the chambers with which the inner ports of the chambers connect, substantially as described. (37.) The combination with the steam- and pump-cylinders, pistons, plungers, and rocking-beam of a direct-acting beam-pump, of admission- and exhaust-ports for the steam-cylinders arranged to secure the closing of the exhaust-port in each cylinder by the piston for cushioning at only one end of each cylinder, substantially as described. (38.) The combination with the steam- and pump-cylinders, pistons, plungers, and rocking-beam of a direct-acting beam-pump of a single port forming the admission- and exhaust-port for each end of each cylinder, the port at one end only of each cylinder being arranged to be closed by the pistons to cushion the latter, substantially as described. (39.) The combination with the vertical steam- and pump-cylinders, pistons, plungers, and rocking-beam of a vertical direct-acting beam-pump, of a single port forming the admission- and exhaust-port for each end of each cylinder, the port at the upper end only of each cylinder being arranged to be closed by the pistons to cushion the latter, substantially as described. (40.) The combination with the steam- and pump-cylinders, pistons, plungers, and rocking-beam of a direct-acting beam-pump, of a single port at each end of each cylinder forming the admission- and exhaust-port, said port at one end of each cylinder having a main exhaust-connection with the cylinder closed by the piston as it approaches the end of its stroke for cushioning, and another connection with the cylinder outside of and not closed by the piston, substantially as described. (41.) The combination with two steam-cylinders and their pistons, and a rocking-beam connecting said pistons, of ports for the admission and exhaust of steam, a valve mechanism arranged to permit the free exhaust of steam during the main part of each stroke, and arranged to cushion each piston by the exhaust steam at one end only of each cylinder, and to permit the slow exhaust of the cushioning steam and the admission of steam behind the piston for beginning the next stroke, substantially as described. (42.) The combination with two steam-cylinders, pistons, and piston-rods, and a rocking-beam connecting said piston-rods, of single admission- and exhaust-ports k, l, k¹, l¹, for the respective cylinders, said ports k, k¹, having a connection with the cylinder closed by the piston as it approaches the end of its stroke, passages 7 connecting said ports k, k¹, with the cylinder-ports 6 beyond the movement of the piston, and adjustable valves for controlling said port 6, substantially as described. (43.) In a steam or similar engine, the combination with the steam-chest and steam-actuated valve therein of a starting-device extending outside the steam-chest, and stationary during the operation of the engine, substantially as described. (44.) In a steam or similar engine, the combination with the steam-chest and