Патент USA US2403392код для вставки
July 2, 1946. s. I NEWBERY . 2,403,392 ELECTRIC MAsTER SWITCH OR ELECTRICAL TIMING DEVICE FOR CONTROLLING THE OPERATIONS OF LAUNDRY OR OTHER PLANT OR APPARATUS Filed May 18, 1945 , 2 Sheets-Sheet 1 July 2, 1946. s_ NEWBERY 2,403,392 ELECTRIC MASTER SWITCH OR ELECTRICAL TIMING DEVICE FOR CONTROLLING THE OPERATIONS OF LAUNDRY OR OTHER PLANT OR APPARATUS Filed May 18, 1945 2 Sheets-Sheet 2 QZzvv 131776012» . ?ezsrbery 2,403,392 I Patented July 2, 1946 UNITED STATES PATENT orrlcr." ELECTRIC MASTER SWITCH OR ELECTRICAL TIMING DEVICE FOR CONTROLLING THE OPERATIONS OF LAUNDRY OR OTHER PLANTS OR APPARATUS Stanley Newbery, London, England Application May 18, 1945, Serial No. 594,453 In Great Britain July 2, 1943 6 Claims. (C1. 2004-35) 2 of a master switch or device which is simple, in expensive to manufacture and reliable in use. In my British patent speci?cation No. 424,331 1 the travelling contact control member, spring contacts being provided on the supporting frame for engagement by the operational wires when the frame element is in its operative position. This invention relates to electric master switches or electric timing devices for control ling the operations of laundry or other plant or apparatus and has for its object the provision $1 The invention will be further described by way of example in reference to a master switch suit able for a laundry washing machine.v In the accompanying drawingsa is described a master switch having a rotary con Figure l is a front view of a master switch tact control arm adapted in timed sequence to make contact with a series of jack sockets into 10 according to the invention as adapted for the which selected jacks are plugged according to various operations which it is desired to bring un der automatic control in any predetermined time control of a laundry washing machine, Figure 2 is a cross-sectional view, and Figure 3 is a View of a detail. A rectangular frame I is provided one side of which is located parallel with the rectilinear The use of jacks with attached cords provides path of movement of a contact control device 2. a selective arrangement affording great ?exibil The frame is provided with an insulated insert ity of choice and variety of combinations but 3 and is hinged or detachably supported by an from the point of View of appearance and legi chor pins 4 in brackets 5 so that it may be bility, that is to say, the tracing of circuits which have been made, the crossing jack cords may be 20 brought parallel and spaced apart from the path of movement of the contact control device 2. somewhat confusing and detract from the ca Two sets of wires are mounted in the insulated pacity quickly to appreciate or read any partic insert 3, one set comprising parallel conducting ular layout. Wires 6 spaced at predetermined time intervals An aim of the present invention is to provide a device a?ording an alternative to or improve 25 with respect to the travel of the control device 2. For example, the wires 6 may be spaced apart ment upon the switching means described in my to correspond with minute time intervals. The above speci?cation, including the provision of wires 6 are stretched across the frame to lie at circuit selecting means whereby the preselection right angles to the path of movement of the con and tracing of a layout may be facilitated. The invention consists in a master switch or' 30 tact control device. Each wire is formed after the manner of a electrical control device comprising a contact cycle spoke having a head 6a and a tightening control member displaceable at a predetermined nipple 6b, the heads and nipple being located in time rate, a set of parallel wires or rods spaced recesses 1a, 1b in the insulating insert 3. apart in one plane at predetermined time inter Another set of wires 8 spaced at appropriate vals with respect to the travel of the control 35 intervals is mounted on the insulating insert 3 member and adapted successively to be ener and is provided with a similar head Ba and ten gised by the control member, a second set of 0p sioning nipples 81). Each of the wires 8 of this erational wires or rods connected (or connect second set is connected or adapted to be con able) in different operating circuits of the plant or apparatus and laid in a parallel plane trans 40 nected in a particular circuit of the laundry washing machine corresponding with the oper versely or gridwise to the ?rst set so as to afford ation which the wire is concerned in controlling. separated crossing points and a set of contact The second set of wires 8 (which may be called pieces for forming conducting bridges between relationship or sequence. the operational wires) is arranged transversely wires of one set and wires of the other set at se lectively predetermined crossing points ready to 45 at right-angles to the ?rst set 6 so that the plane receive current when the control member in suc cession contacts with the time wires of the se lected crossing points. of each wire of one set, transverse to the plane of the frame, intersects or crosses those of the other set. ‘ The contact control device 2 of which three are ly to one another in a frame element and the 50 providedare mounted upon an endless motor driven chain or band 9 one lap I0 of whichlies contact pieces comprise jacks adapted to hook on parallel with the side of the frame I and at right to the wires of one set and to engage the wires of angles to the time wires 6 so that the contact the other set by spring contact elements. The sets of wires are preferably ?xed relative devices traverse these wires and thence around The frame element may be detachably mount ed with respect to a supporting frame carrying 55 a terminal sprocket Wheel H. The chain 9 is 3 2,403,392 4 driven by a sprocket wheel 12 from a motor l3 sorted between the worm wheel 35 driven by the worm 14 of the motor drive to the chain sprocket l2. The contact control device 2 is provided with indicating ?ngers 35 and in order to enable the position of the control device to be observed a space may be provided between the operational wires 8 adjacent the path of the control device. I claim: by a worm M or other suitable reduction gear. Each contact control device is provided with a wiper l5 which engages the wires 6 in succession and a pick up contact I6 which engages a bus bar l1 ?xed in position to the rear of the set of time wires 6. ‘ The connection of any particular time wire 5 to any particular operational wire 8 is effected by a bridging contact piece or jack 18 which is 10 1. A master switch or electrical control device adapted to engage the selected wires at the cross for controlling the operations of laundry or other ing point and form a path for the current from plant, comprising a contact control member dis the selected time wire to the selected operational placeable at a predetermined time rate, a set wire. of parallel members spaced apart in one plane at Each jack comprises a hook 19 adapted to en predetermined time intervals with respect to the gage the selected time wire 6 and a spring loaded travel of the contact control member and adapted contact 20 adapted to engage the selected oper successively to be energised by the said control ational wire 3 and hold the jack in position. member, a second set of operational members con Located beneath the bus bar is an insulated nectable in different operating circuits of the plant strip or panel 2| supported upon a ?xed frame or plate 22. The strip 2| carries a series of spring contacts 23 adapted to engage the operational wires 8 to energise such wires, the contacts 23 20 or apparatus and arranged in a parallel plane transversely to the ?rst set so as to afford sepa rated crossing points, and a set of contact pieces for forming conducting bridging elements between being coupled to appropriate circuits according members of one set and members of the other set to the operation that is to ‘be controlled by these 25 at selectively predetermined crossing points ready wires 8. For connecting the control device with to receive current when the control member in a suitable electric current supply, the bus bar I1 is provided with a terminal contact 21. As applied to the control of a laundry washing machine the operational wires 8 may be arranged in groups as indicated at the lower part of Fig ure. 1. succession contacts with the time members of the selected crossing points. 2. A master switch as claimed in claim 1, where in a frame element is provided in which the sets of members are ?xed relatively to one another For example, one group 24 may comprise wires concerned in the supply of hot water to the washing machine, each member of the group cor responding with a different quantity of hot water to be admitted. There may be a similar group 25 for cold water, another 26 for soap in graded quantities and likewise other groups. Individual wires may be allocated for dispensing ?xed quan~ titles of various other materials employed in the washing process. Also individual wires are pro vided corresponding with the opening of a steam supply valve and the closing thereof and the opening of the washer outlet and the closing thereof. A wire may be provided for an alarm to give notice of any particular condition or operation and a wire may correspond with a cir and the contact pieces comprise jacks adapted to hook on to the members of one set and spring contact elements to engage the members of the other set. 3. A master switch as claimed in claim 1, wherein a supporting frame is provided for carry 40 ing the travelling contact control member, a frame element detachably mounted on the sup porting frame for carrying the two sets of mem bers, and spring contacts carried by the support ing frame adapted to engage the operating mem bers when the frame element is in its operative position. 4. A master switch as claimed in claim 1, wherein a motor driven travelling endless mem her is provided having a rectilinear path parallel to the plane of the set of time members, a plurality of contact control members mounted at spaced The jacks 18 are mounted in the appropriate . intervals on the endless member and each control positions as indicated for example in Figure 1 member having a wiper contact adapted to engage according to the scheme of operation required the time members in succession and a spring con— and as a contact device 2 traverses the time wire tact engaging a bus bar. 6 from the lowest to the uppermost, the various 5. A master switch as claimed in claim 1, functions of the washing machine are automat wherein a motor driven travelling endless mem ically brought into operation together with the ber is provided having a rectilinear path parallel supply of water and washing fluids etc. to the plane of the said time members, a plurality A number of panels comprising the frame I of contact control members mounted at spaced and the two sets of wires 6 and 8 having differ intervals on the endless member, hand operated ent layouts of jacks may be made up and stocked so that the scheme of operation of the washing (it) means provided to traverse the contact control member, comprising a hand wheel operably con~ machine may be quickly changed at will by sim nected to the travelling endless member, and a ply removing one panel and substituting an friction clutch in the drive from the motor to the other. travelling endless member. In order to enable the contact devices 2 to be 6. A master switch as claimed in claim 1, traversed by hand a hand wheel 28 is provided at wherein a set of frames are provided each sup a convenient position. The hand wheel 28 is porting a different arrangement of contact pieces mounted on a spindle 29 which carries a sprocket according to alternative layouts suitable for the wheel 30 which drives by means of a chain 3| a operation of the plant or apparatus. sprocket wheel 32 mounted on the spindle 33 of 70 the chain sprocket l l. A friction clutch 34 is in cuit for starting the machine and another for stopping it. STANLEY NEWBERY.