Патент USA US2062126код для вставки
- Nov. 24, 1936. G, M_ GlBsON 2,062,126 VALVE `MECHANISM FOR CONTROLLING A DRIER Filed Jan. 27, 1954 JJ J2 fr 4f fr , . 51C) 0 4; à, I 4 29 2,062,126 Patented Nov. 24, 1936 UNITED STATES PATENT OFFICE 2,062,126 VALVE MECHANISM FOR CONTROLLING A DRIER George M. Gibson, Waterloo, Iowa, assigner to National Metal Products Company, Waterloo, Iowa, a corporation of Iowa Application January 27, 1934, Serial No. 708,640 5 Claims. (C1. 121-465) This invention relates to improvements in mechanism for operating and controlling driers, and particularly that type of drier used in con nection with domestic washing machines, and in 5 which is employed fluid under pressure for oper ating the same, the drier being of that type em ploying a rigid container in which is supported a ilexible waterproof clothes container adapted to receive clothes to be dried, and capable of being 10 partially collapsed to squeeze the water from the clothes by fluid under pressure forced between the sides of the drier and the clothes container, suitable means being provided for discharging the water from the clothes into the washing ma ]5 Chine. Heretofore various types of pumps have been used to deliver the fluid to the clothes drier for the purpose of collapsing the clothes container. These pumps work quite satisfactorily if proper „D attention is given them from time to time. The initial cost of manufacture is also quite high. I find that a large number of the cities and towns have water systems which operate under a considerable pressure, varying from 30 pounds to N) Cl 150 pounds per square inch, and that water from the ordinary piping system such as installed in the ordinary residence and having a pressure above 30 pounds to the square inch may be uti lized to advantage to provide pressure to operate CO Ü driers of the type above described. It is, therefore, the object of my invention to provide a simple, durable and reliable valve mechanism which may be used in place of the pump for applying pressure to the drier, and in F- connection therewith is provided a simple and reliable means for controlling the flow of water from the water system to the drier and from the drier to the point of discharge, and in which is included suitable means for easily and quickly at 40 taching the valve mechanism to the faucet of the ordinary piping system. A further object of my invention is to provide an improved pressure regulating and reducing device which may be easily and quickly attached ¿D to the ordinary drier of the fluid operated type above described, and in which is employed a single manually controlled device so arranged that when the pressure reducing mechanism is attached to the faucet of the water system, then i 50 the operator may easily and quickly apply the pressure to the drier when so desired, and also accomplish the release of said pressure. A further object is to provide in a fluid con trolled device of the type above described, means 55T whereby a predetermined pressure within the drier may be automatically maintained even if the supply pressure varies considerably. My invention consists in the construction, ar rangement and combination of the various parts . of the device, whereby the objects contemplated 5 are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawing, in which: Figure l is a vertical longitudinal sectional view of my improved valve mechanism showing 10 the valves in position to permit fluid under pres sure to enter the pressure chamber, with exhaust valve closed. Figure 2 is a longitudinal sectional view of the valve mechanism for controlling the flow of 15 water to and from a drier of the type above de scribed, the valves being in a normal position with the water shut olf from the drier. Figure 3 is a longitudinal sectional view of same showing the valves in the position they would 20 assume when pressure is being applied to the drier and automatically maintained at said pres sure. Figure 4 is a detail end view of the lever mecha- y nism for operating the valve. 25 Referring to the accompanying drawing, I have used the reference numeral I1 to indicate the valve casing in which one end of the pipe I5 leading to drier mechanism is connected. A dis charge pipe I8 is connected in the upper end of the casing Il to which a hose may be connected, the end of which may lead to a sink or to a drain in the floor on which the washing machine is supported. The bottom end of the casing Il is provided with a pipe 23 to which a suitable hose to supply water under pressure is connected. The casing Il is secured to the supporting frame of a washing machine tub by means of suitable brackets 2l. The bottom of the casing I1 is provided with a screw threaded opening in which is mounted a plug 29 having a vertically arranged bearing 30. The upper end of the cas ing I 'I is provided with a screw threaded opening 3| in which is mounted a bushing 32. The upper end of the bushing is pro-vided with an upwardly extending pipe 33 and having its lower end closed and provided with an opening 34. The casing I‘I is provided with a contracted portion 35 having a valve opening 3B and also a, partition 3l provided with an opening 38. The 35 40 45 50 partition 3l and the contracted portion 36 provide means for dividing the casing into an inlet cham ber 39, a pressure chamber 40 and a discharge chamber 4 I. The walls of the chamber 4I have a discharge opening 42 in which the pipe I8 is con- 55 2 2,062,126 nected, the walls of the chamber 49 are provided with an opening 43 for receiving the pipe | 6, while the wall of the chamber 39 is provided with an opening 44 for receivingY the pipe 23. Supported longitudinally through the center of the casing |1 I have provided a valve stem 45, the lower end of which is contracted and slidably supported in the bearing 36. The upper end of the valve stem 45 is provided with ahead 45 slid 10 ably mounted inthe pipe 33. The lower end of the enlarged portion of the valve stem 45 is pro vided with a screw threaded portion 41. The screw threaded portion 41 supports valve members 48, 49 and 59, said valve members being 15 formed preferably of yieldable material such as leather or rubber. The valve members 48 and 49Y are separated by a washer 5| and secured in posi tion by means of suitable nuts 52, while the valve member 56 is secured in position by means of 20 nuts 53. ` Slidably mounted in the opening 36 is a sleeve 54 having an outwardly extending flange 55 at its upper end designed to rest on the upper end of the contracted portion 35 when the sleeve is at 25 its lower limit of movement. The lower end of the sleeve’ has an inwardly extending annular iiange 56 vfor forming a'valve seat. A discharge opening 51 is formed in said ilange. A spring 58 has its lower end carried by the flange 56 and its 30 upper end resting against the lower end of the bushing 32, while'a spring 59 has its lower end ' resting on the lower end of the bushing 32 and its upper end'against the under surface of the head 46. 35 « ` The valves 48, 49 and 50 are supported normally in the position illustrated in Figure Y2, with the valve member 49 resting on the valve seat 68 formed on the upper surface of the member 31 with the valve 58 near the lower end of the charn 40 ber 39. The sleeve 54 is forced downwardly by means of the spring 58 with its lower end termi nating inthe chamber 40 and above the valve 48 a considerable distance. The valve 49 is held against its seat by forcing 45 the rod>45 downwardly against the tension of the spring 59 by means of a lever controlled mecha nism comprising a spring 6| resting on the upper Vend of the head 46 and placed under tension by means of a head 62 also slidably mounted in the 50 pipe 33 andoperated by a rod 63 extending up wardly through a packing gland 64 in the upper end of the pipe 33. The upper end of the rod 63 lis connected to a Vhead 65 slidably mounted in a pipe 66 secured to the upper end of the packing gland 64. The upper end of the rod 63 is pivotally connected to a link 61 forming the lower side of a lever device 68. Said lever device 68 includes link members 69 pivotally connected to the upper end of the 60 pipe 66. The member 68` is provided with an operating handle 10. The packing gland 64 is provided with a slidable member 1| resting on top of the packing 12. A spring 13 has its lower end resting on the member 1| and its upper end 65 against the head 65. The spring 13 creates a downward pressure on the member 1| which is slidably mounted in the pipe 66 and thereby applies pressure to the pack ing 12 so that a tight joint is always provided 70 around the shaft 63. The spring 13 also impartsY a lifting force to the head 65 in such a manner as to support the handle 10 in an elevated position when unlocked, and in turn the head 62 also> sup ported in an elevated position as shown in 75 Figure 3. The links 61 and 69 are so arranged that the shaft 63 is locked at its lower limit of movement when the handle 10 is in its lowered position illustrated in Figure 2, said parts being locked with the rod 63 at its lower position of movement on account of the pivotal connection between the member 61 and the links 69 passing to the right of a dead center line common to the pivotal con nection between the links 69 and the pipe 66 and the pivotal _connection between the link 61 and 10 the rod 63, at which time the outer end of the member 68 will engage the upper end of the pipe 66 and thus limit the downward movement of said lever. When the head 62 is moved to its lowered posi 15 tion of movement, asv shown in Figure 2, pressure will be applied to the spring 6|, which in turn will apply pressure to the head 46 andl the rod 45, causing the valve 49 'to engage the seat 60 with the valve 48 spaced below the ñange 56 of the 20 sleeve 54 with the valve 5D belowthe partition _31. This is the normally closed positions of the valves. Assuming that the pipe 23 has been connected to suitable water supply under pressure, then water under pressure will enter the pipe 23 and 25 the inlet chamber 39. Assuming that it is de sired to supply water to the drier for operating the same, then the operator grasps the lever _10 and moves it upwardly, permitting the spring 13 to lift the head 65 to the position illustrated in 30 Figure 3, after which the spring 59 will lift the head 46 causing the valves 48, 49 and 50 to be` elevated to the positions shown in Figure 1, with the valve 48 against the flange 56 of the sleeve 54., Water will then iiow upwardly through the 35 opening 38 and around the threaded portion of the rod 45 into the pressure chamber 4||.v The valve 48 will prevent water from passing through the opening 51. Pressure will then be built up on the pipe I6 and in the space`|5 between the drier and the clothes container until the said pressure equals the resiliency of the spring 5B. Further pressure development in the pressure chamber will cause the sleeve 54 to be moved upwardly and in turn the valve 50 until the said 45 valve 56 engages the valve seat 14 in the mem ber 31, at which time the ñow of water from the chamber 39 will cease with the water in the chamber 40 having the desired pressure to op 50 erate the drier. When the clothes have been properly dried, the handle 16 is then moved downwardly, caus ing the valve 49 to be moved to position on its seat 60 and the valve 48 Vto be separated from the flange 56, after which water from the drier 55 will be forced upwardly through the opening 51 into the chamber 4| and from there to the dis charge pipe I8. ' ' Thus it will be seen that I have provided Va.control device which is of comparatively simple 60 construction and which may be easilyY attached to a clothes drier of the type above described, which is reliable and accurate in its operation, and in which the entire operation of the device may be controlled by a single lever and at the 65 same time provides means for automatically maintaining a predeterminedV pressure in the pressure chamber. Said predetermined pressure may be varied by adjusting the bushing 32 in the casing |1, said bushing being locked in its ad 70 justed position by means of a lock nut 16. The spring 6| provides means whereby adjust able and yieldableV pressure will always be main tained between the valve 49 and its seat 60, even 2,062,126 if the valve seat and the valve are worn a con siderable amount. Sometimes it is desired to ñll the Washing ma chine tub to which the drier is attached with Water from the supply pipe 23. At such times the operator simply places one end of a hose connected to the discharge pipe I8 in the upper end of said tub and then elevates the lever l@ a slight amount, just enough to unseat the valve 49 without clos Water will then ñow upwardly through the opening 38 into the chamber 40, thence through the opening 51 into the chamber 4 l, and then into the pipe l 9 and finally to the tub I0, thereby providing means 15 whereby water may be delivered from the faucet 10 ing the valve 48 and its coacting seat. 25 to the tub without having to actuate a valve in said water supply pipe, and thus providing a single control for both supplying Water to a washing machine tub and other containers. In actual practice the diameter of the threaded portion of the shaft 135 and the size of the open ing 38 should be such as to provide a restricted passage so that a considerable pressure drop will result between the chambers 39 and ¿l5 when the 25 valves are at their maximum open position, to 3 ling the opening and closing movements of said rod; and yieldable means for locking the rod in its last position of movement. 3. In a device of the class described, a casing provided with a pressure chamber having inlet and outlet passages; a sleeve supported in the outlet passage to slide toward or from sai-d pres sure chamber, its inner end having a Valve seat; yieldable means for imparting movement to said sleeve toward said pressure chamber; a valve 10 rod mounted through said sleeve and passages; an exhaust valve carried by said rod adapted to ñrst close said outlet passage upon movement of said rod in one direction; an inlet valve also carried by said rod to close the inlet passage on further movement of said rod in the same direc tion; yieldable means for moving said rod t0 closed position; a third valve carried by said rod for closing the inlet passage with exhaust valve open when the rod is moved in the opposite di 20 rection; manually operate-d means for controlling the opening and closing movements of said rod; and means for varying the tension of the first yieidable means. 4, In a device of the class described, a. casing 25 prevent vibration or hammering of the valve 43 provided with a pressure chamber having inlet as it is moved to a closed position. I claim as my invention: l. In a .device or” the class described, a casing and outlet passages; a sleeve supported in the outlet passage to slide toward and from said pressure chamber, its inner end having a Valve 30 provided with a pressure chamber having inlet and outlet passages; a sleeve supported in the outlet passage to slide toward or from said pres sure chamber, its inner end having a valve seat; yieldable means for imparting movement to said 35 sleeve toward said pressure chamber; a valve rod mounted through said sleeve and passages; an exhaust valve carried by said rod adapted to iirst close said outlet passage upon movement of said rod in one direction; an inlet valve also carried 40 by said rod to close the inlet passage on further movement or" said rod in the same direction; yieldable means for moving said rod to closed position; a third valve carried by said rod for closing the inlet passage with exhaust valve open 45 when the rod is moved in the opposite direction; and manually operated means for controlling the opening and closing movements of said rod. 2. In a device of the class described, a casing provided with a pressure chamber having inlet 50 and outlet passages; a sleeve supported in the outlet passage to slide toward or from said pres sure chamber, its inner end having a valve seat; yieldable means for imparting movement to said sleeve toward said pressure chamber; a valve rod 55 mounted through said sleeve and passages; an exhaust valve carried by said rod adapted to ñrst close said outlet passage upon movement of said rod in one direction; an inlet valve also carried by said rod to close the inlet passage on 60 further movement of said rod in the same direc tion; yieldable means for moving said rod to closed position; a third valve carried by said rod for closing the inlet passage with exhaust valve open when the rod is moved in the opposite ydi 65 rection; manually operated means for control seat, yieldable means for imparting movement 30 to said sleeve toward said pressure chamber, an exhaust valve adapted to close the outlet pas sage; a second valve for closing the inlet passage after the exhaust valve has been closed and a predetermined pressure has been established in 35 said pressure chamber and the iirst valve has been moved outwardly against the yieldable means for closing the same, yieldable means for moving said exhaust valve and the second valve to a closed position; a third valve for closing the inlet passage when the exhaust valve is in an open position; and manually operated means for moving the last valve to a closed position. 5. in a device of the class described, a »casing provided with a pressure chamber having inlet and outlet passages; a sleeve supported in the outlet passage to slide toward and from said pressure chamber, its inner end having a valve seat; yieldable means for imparting movement to said sleeve towards said pressure chamber, an eX haust valve adapted to close the outlet passage; a second valve for closing the inlet passage after the exhaust valve has been closed and a prede termined pressure has been established in said pressure chamber; yieldable means for moving said exhaust valve and said second valve to a closed position; a third valve for closing the inlet passage when the iirst valve is in an open posi 40 45 50 55 tion; manually operated means for moving the last valve to a closed position; and means for locking the valve closing means in a closed po sition, the last said means including a spring for applying yieldable pressure between the valve and the seat. 65 GEORGE M. GIBSON.