Патент USA US2110008код для вставки
March 1, 1938. G. w. WARDWE|_1_,JR y 2,110,008 n IRONING MACHINE Filed Sept. 20, 1934 pigi ‘y Inventor : George \/\/. Wardwel I.,JT“, Att orneg. Patented Mar. i9 l ` ` " _ George anatra inoltrare Mannino . warmen, n., Nichols, com., assigner to General Electric Company, a corporation of New lli'orlr application September 20, 1934i, Serial No. ‘léiéißl93 i3 (Claims. (Cl. Sid-3d) ll/liy invention relates to ironing machines of the The front and rear sides and edges of the shell type in which ironing is eiîected by the pressure are connected by spaced transverse vertical ribs between avheated shoe and a buck. it having integral ears lia spot welded to the The object of my invention is to provide an im» shell at the edges and the bottom. The lower 5 proved construction and arrangement in an iro-n ing machine of this type, and for a consideration of what ll believe to be novel and my invention, attention is directed to the accompanying spec iiication and the claims appended thereto. In the accompanying drawing, Fig. l is a sec tional end elevation of an ironing machine em bodying my invention; Fig. 2 is a plan View partly edges of the ribs it are spaced from the bottom of the buck to provide a space for drainage of condensed moisture along the bottom of the wall of the buck toward the center. At either end of the buck, a rib läb having its upper edge in line with the upper edge of the ribs i3 is fixed to the edge of the shell. The rib lill? forms an end sup port for a Wire mesh screen lil placed across the broken away of the buck; Fig. 3 is a sectional view taken on line 3_3 of Fig. 2; Fig. 4i is a upper edges of the ribs i3 and lith. fragmentary plan view partly broken away of the front end of the carriage; Fig. 5 is an exploded View of part of the mechanism for moving the the mesh of the screen so that the ribs do not The spac ing of the ribs'ld is relatively great compared to interfere with the passage of steam through Fig. 6 is an end elevation of the drain pan and the screen. The screen Ml provides a support for a pad l5 and a pad cover ita of textile ma terial. The pad is held in place over the upper the support therefor; Fig. '7 is a sectional view surface of the buck by cords ltì which are con taken on line 'i-'l of Fig. l, and Fig. 8 is an en nected to the pad cover and are laced across the under side of the buck. The screen i/i and the shoe into pressing engagement with the buck; larged fragmentary view :of the pressure mech anism as shown in Fig. 1. The ironing machine is carried on a hollow base or support l. The iront end of the upper wall of the base is provided with a depression 2 which provides a tray for pins and the like. The rear upper wall of the base is turned up at "d to provide an apron which will prevent the surplus 30 of the material being ironed from falling over the rear edge of the base. The upper. side of the base is provided with a rectangular depression il. In this depression is placed the lower end of a hollow rectangular member t made of rubber or other resilient material for resiliently supporting a hollow buck li. The upper end of the member il fits within the depending sides of a rectangular cup-'l which is attached to the lower side of the buclr'at the center. The rectangular shape oi the member t prevents turning of the buck.. A bolt il having a head iitting withina tapered openingßa in the lower wall of the buck ex tends through an opening il in the upper wall ofl the base,- secures the buck to the base, and holds 45 the upper and lower ends of the member 5 in firm. contact with the rectangular cap 'l and the depression il in the base. The opening d is larger than the bolt and allows some lateral movement oi“ the bolt. A rubber washer l@ placed between a nut li on the bolt and the upper side of the base resiliently holds the bolt in position in the base. With this arrangement the buck is resil iently supported so that it can tilt in all direc „ tions in order to maintain an even pressure over the surface ofgtherbuck during ironing. The buck .l5 is hollow and is fabricated from a> metal shell having sides t2 which flare outwardly and upwardly ,from the cup l to provide the bottom wall of the buck,`and are turned up 60 wardly at tta to provide the edges of the buck. 20 supporting ribs. it provide a construction which adequately supports the pad la and provides a large area for the steam which is generated dur ing ironing to pass through the pad into the in terior of metal shell l2 where it is condensed. By placing the pad directly on the screen, the full area of the screen is available for the passage oi’ v steam into the buck. The space between the lower ends of the ribs i3 and the bottom of the buck permits the steam to flow along the buck beneath the ribs. This makes the whole bottom wall of the buck available for condens ing moisture even though only part oí‘ the buck is being used. When the steam is condensed, it Iiows along the bottom wall of the buck toward the center and is led through openings Illia in the bottom wall of the buck and the cap il to the interior of the rubber member 5. From there; 40 the moisture is led through the base by a drain tube l'l to an opening ita in the upper wall of a pan it carried within the base. The pan ld is tubular and closed on all sides except for the opening ita. The pan is supported by lugs [Ito secured to the ends of the pan which rest in re-cesses in brackets itc supported from the side wall of the base. A spring clip ltd carried by the side wall of the base presses down on the top of the pan so- that the lugs lab are held ñrmly in contact with the brackets itc. The pan may be removed by lifting the rear end of the pan until the lug l‘êlb is clear of the recess in the bracket lßc and sliding the pan to one side until clear of the spring clip ldd. The lo cation of the hole in the pan is such that the condensed moisture will not be spilled if the ma chine is tipped when moving from one location to another. By withdrawing the steam generated during ironing, the pad is kept dry and the iron 2 2,110,008 ing speed is increased. The rubber member 5 and the rubber washer |0 provide seals which prevent the leakage of the condensed moisture over the outside of the base and into the -in terior of the base. 'I'he buck is supported on the base so that the upper surface of the buck is inclined upwardly from the front. The inclined surface of the buck makes the adjustment of the clothes over the surface of the buck easier. I consider this an important feature of my invention. 'I'he carriage for supporting the shoe comprises a channel -I9 of U-shaped configuration having a reenforcing web |90. secured between the flanges. 15 The lower arm 20 of the carriage is pivotally carried on the base between guides 20a, by a pin 2| which fits within an elongated slot 22 formed in each flange of the channel. The pin 2| is below and to the rear of the center line of the 20 buck. By providing a carriage pivoted below the inclined buck, a shorter travel of the carriage is needed to move the shoe carried by the carriage into and out of register with the buck. By piv oting the carriage below and to the rear of the 25 center line of the inclined buck, the clearance of the shoe may be decreased without disarrang ing the material on the buck because the shoe tends to swing down on the buck as the shoe is moved from the out-of-register to the in-register 30 positions. This construction has the further ad vantage that when the shoe is moved to the out of-register position, the shoe has less tendency to throw heat into the operator’s face. The slots ' 22 are inclined toward the lower arm so that 35 the pin 2| tends to -remain at the front end of the slots 22 when the carriage is pivoted forward from the position shown in dotted lines in Fig. 1, to the position shown in full lines in Fig. l. A notch 23 is formed in the front end of the lower 40 arm 20 of the carriage. The upper side 23a of the notch 23 projects beyond the lower side 23h of the notch so that when the carriage is pivoted forward, the lower side 23b swings past a pin 24 in the base and the upper side 23a engages 45 the pin 24, stopping the pivotal movement of the carriage. From this position, the carriage is moved to the position shown in full lines in Fig. 1 by sliding the carriage forward so that the notch 23 engages the pin 24 and locks the car 50 riage in this position. When the carriage is in this position, it cannot be displaced by forces on the upper arm of the carriage, perpendicular to the upper surface of the buck. To move the carriage from the position shown in full lines 55 to the msition shown in dotted lines, the car riage is first pushed rearward so that the notch 23 is moved clear of the pin 24 and the pin 2i is at the front of slot 22 and the carriage is then pivoted rearward on the pin 2E. 60 A shoe 25 which is preferably made of alumi num or other suitable metal is supported on the lower side of the upper arm 26 of the carriage by two pins 21. The lower ends of these pins are threaded into the upper surface of the shoe 65 at points intermediate the ends of the shoe on either side of the center of the shoe. The body of each of the pins passes through a bushing 28 which is secured at the lower end to a cross member 29 connected between the ñanges of the 70 upper arm of the carriage. A coil spring 33 surrounding the bushing and the pin and ar ranged between the cross member '29 and a washer 3| secured to the upper end of the pin biases the shoe upward against the lower side of the upper arm 26 of the carriage. The springs 30 permit the shoe to be moved away from the carriage, and the bushings 28 guide the move ment of the shoe and permit a limited tilting movement of the shoe. The shoe is heated by a heating element 32 im which is clamped in a groove formed in the upper surface of the shoe by clamps 33. A switch 32a controls the iiow of current to the heating elements. A cover 34 is provided to enclose the upper surface of the shoe. When the'carriage is in the position shown in full lines in Fig. 1, the carriage is held against vertical movement by the pins 2| and 24, and the shoe 25 is in register with and in spaced relation to the buck. To move the shoe into pressing engagement with the buck, a low-pres sure mechanism is provided which moves the shoe relative to the carriage into contact with the buck, and a heavy-pressure mechanism is pro vided which subsequently moves the shoe into final pressing engagement with the buck. The low-pressure mechanism comprises a hol low shaft 35 which is pivotally carried on the carriage by a bushing 36 secured to the under side of the web of the upper arm 26 of the car riage. Pins 31 are secured at one end to the shaft, and the projecting ends of the pins 31 iit within rounded recesses 38 in a sliding block or support 39. The recesses 38 prevent endwise displace ment of the shaft 35. The block 39 slides in a guide 40 secured between the flanges of the upper arm of the carriage. An ear 40a on the upper edge of the guide 40 limits the upward movement of the block. An operating lever 4| is connected to the projecting end of the shaft 35 for rotat ing the shaft. Rotation of the lever 4| in a counterclockwise direction, as viewed in Fig. l, causes the pins 31 to force the block 39 down ward against a plate 51 secured to the upper surface of the shoe to force the shoe away from the carriage and into engagement with the buck. A stop 39a secured to the top of the block 39 engages the arm of the carriage and limits the downward movement of the block. The leverage exerted by the lever 4| is such that only a low pressure is required to move the shoe against the action of springs 3U so that the shoe may be moved quickly and easily into contact with the buck. The position to which the shoe and block 39 are moved by the lever 4| depends on 50 the thickness of the materia-l placed on the buck. This compensates for variations in thickness of the materials being ironed. When the lever 4| is released, the springs 30 return the shoe, the block, and the operating lever 4| to the position 55 shown in full lines in Fig. l. The shoe is moved into final pressing engage ment with the buck by a heavy-pressure mech anism which has a shaft 42 journaled in bush ings 43 in the block 39. The bushings are lubri 60 cated by wicks 43a. A cam 44 is secured to the shaft 42 by a pin 46 and fits within a recess 45 in the block 39 between the bushings 43. A slot 45a is formed in the bottom and rear si'de walls of the block through which the cam projects. 65 The edges of the slot 45a prevent longitudinal displacement of the cam and the shaft 42. The working surface of the cam is provided by a roll 41 which is journaled between flanges 48 of the cam. The roll 41 engages the plate _51 70 secured to the upper surface of the shoe. when the block 39 is in the position iuustrated in Fig. l, it is free to slide up and down in the guide 40 relative to the upper arm of the car riage. In order to lock the block 39 to the up aimons per arm of the carriage so that the cam 44 may exert a pressure tending to move the shoe away less tendency to throw heat in the operator’s face when in the dotted line position. To iron the material placed on the buck, the operator pivots the carriage about pin 2l by pulling on from the carriage, a U-shaped pawl-49 is pro vided which is carried within the recess 95 in the block 39. The front and rear sides of the pawl are on either side of the shaft 42, and the bottom of the pawl rests on ledges 45h at the bottom of_ the block 39. The pawl therefore lever 91 and as the carriage approaches the po sition shown in full lines in Fig. 1, the lower edge 23h of the arm of the carriage swings past pin 23, and the upper edge 23a of the lower pivots on shaft 42. A slot 49a is formed in the bottom of the pawl within which the cam 44 may‘rotate without disturbing the pawl. The pawl has a pointed upper front edge 5U which arm engages the pin 2t, thus stopping further turning movement of the carriage. The opera 10 tor then pulls on lever di to slide the carriage forward to bring notch 23 over pin 24, the elon gated slots 22 permitting the carriage to be pulled forwardly on the pin 2i. This locks the car riage in the position shown in Fig. 1. The op 15 erator now rotates the lever 4i in a counterclock Wise direction, as viewed in Fig. l, to cause the pins 3l to force the block 39 downwardly against the plate 5l on the upper surface of the shoe and move the shoe into contact with the mate 20 rial placed on the buck. The movement of the shoe and the block 39 depends on the thickness of the material on the buck. To complete the is adapted to engage one of a series of notches 5l in a. plate 52 secured to the front wall of the guide 4U under the ear 40a. When the pawl engages a notch 5l, the bottom of the pawl which rests on the ledges 45h prevents upward move ment-ofthe block 39 and locks the block to the carriage. A spring 53 arranged in a recess 53a in the front of the block 39 urges the front edge of the pawl toward the notches in plate 52. A shoulder 54 formed on the cam engages the rear edge 55 of the pawl when the parts are in the position shown in Fig. 1 and holds the pawl out 25 of engagement with the notches 5l against the force of spring 53. The force exerted by the springs 30 tends to maintain the cam 44 in the position to hold the pawl out of engagement with the notches 5l. An operating handle 56 is con '30 nected to the projecting end of the shaft 42 for rotating the cam. 'I‘he operating levers 4l ironing operation, the operator rotates the lever 55 in a counterclockwise direction, as viewed in 25 Fig. 1, while still holding the lever 4i in the lowered position. Since both hands are required to operate the machine, the safety of the ma chine is increased. The initial movement of the lever 55 moves the shoulder 5d on the cam away 30 from the rear edge 55 of the pawl and permits the spring 53 to move the front edge 50 of the pawl into engagement with one of the notches 5l in the plate 52. This locks the block 39 to the carriage in the position to which it was 35 and 56 are arranged on opposite sides of the up per arm of the carriage so that both levers can not be operated with one hand. This increases the safety of the machine. A cover 5l secured to the upper arm of the carriage encloses the moved by the lever 4l. Continued rotationof _the pressure-developing mechanism. lever 55 causes the roller 4l of the cam to force When the handle 56 is moved in a counterclock wise direction, as viewed in Fig. l, the initial 40 movement of the handle moves the shoulder the shoe into iinal pressing engagement with the buck. To release the shoe, the operator ilrst returns the lever 56 to the position shown in 40 Fig. 1. The final return movement of the lever 54 on the cam away from the rear edge 55 of the pawl and allows the spring 53 to move the 56 causes the shoulder 54 of the cam to engage the rear edge 55 of the pawl to force the pawl out of engagement with the engaged notch of the plate 52. 'I'he operator holds lever 4| until the lever 56 is returned to the released position and then lets lever 4l return slowly under the edge 50.0f the pawl into engagement with one oi' the notches 5I in the plate 52. This locks 45 the block 39 in the position to which it has been moved by the lever 4I. Continued rotation of the lever 56 in a counterclockwise direction turns cam 44 and causes the roller 41 to move the shoe action of springs 39. This prevents a sudden re turn of the shoe and lever 4l. To uncover the relative to the carriage into final pressing engage ment with the buck. The roller 41 of the cam is moved past the center of the shaft 42 so that surface of the buck so that the ironed material 50 may be removed, the operator pushes on the lever 4l. The initial eiîect of .pushing on the lever 4l is to slide the carriage rearwardly so that the notch 23 is clear of the pin 24 and the pin 2l is in the front part of the slots 22. Con 55 the cam will remain in this position. 'I'he rear edge 44a of the cam engages the block 39 above the slot 45a and limits the rotation of the cam. 55 Since the low-pressure mechanism moves the shoe into contact with the buck and moves the block 39 to a corresponding position, the cam of tinued rearward pressure on the lever 4I causes the carriage to'pivot about the pin 2| and to return to the position shown in dotted lines in Fig. 1. , the heavy-pressure mechanism needs only a small throw, so that the force of reaction of the lever 00 56 when released by the operator is small. The ' The pressure-developing mechanism, the re block 39 is locked to the carriage by the pawl 49 until the operating lever 56 is returned to the position shown in Fig.« 1, at which position silient mounting for the buck, and the drain pan the shoulder 54 engages the rear edge 55 of the 65 pawl and moves the front edge 50 of the pawl cation Serial No. 745,428, ñled September 25, 1934. out of engagement with the notches in the plate 52. I In the operation of the ironing machine, as sume that the carriage is in the position shown 70 in dotted lines in Fig. 1; In this position the shoe is out of register with the buck so that the operator may arrange the material to be form no part of my invention, but are the inven tion of J. S. Visscher and are claimed in appli What I claim as new and desire to secure by 65 Letters Patent of the United States is: 1. An ironing press comprising a support, a buck carried by the support, a shoe, a carriage for said shoe, said carriage being pivoted on said support for movement of said shoe from a position 70 Since out of register with said buck to a position in register with said buck, means including a sliding connection between the carriage and the support the shoe is arranged to cooperate with ‘a buck inclined upwardly from the front, the shoe has for locking the carriage in said last-named posi tion upon sliding movement of the carriage on ironed on the upper surface of the buck. 4 2,1 10,008 the support, and means for effecting movement of said buck and said shoe relative to each other into pressing engagement. 2. An ironing press comprising a support, a El buck carried by said support, a carriage pivoted on said support and slidable forward on said pivot, a shoe carried by said carriage and mov able thereby to a position in register with said buck, means rendered effective on forward sliding of said carriage on said pivot for locking said car riage in this position, and means for relatively moving said buck and said shoe into pressing engagement, , 3. An ironing press comprising a support, a buck carried by said support, a carriage having throughout substantially its entire surface where by the steam generated during ironing flows di rectly through the pad and through the mesh of the screen, and means enclosing the under side of the screen and spaced therefrom for protect ing the screen from the atmosphere. Ul ' 9. An ironing press comprising a support, a buck carried by said support, a shoe, a carriage for said shoe for moving said shoe into register with said buck, means connecting said carriage to said support to allow pivotal and sliding move ment with respect to said support, locking means rendered effective by sliding movement of said carriage for preventing displacement of said car riage by pressing forces, and means for relatively 15 an arm connected to said'support to allow pivotal moving said buck and shoe into pressing engage and sliding movement with respect to said sup ment. ~ port, said connection comprising a pin within an 10. An ironing press comprising a support, a. elongated slot, a notch in said arm, a shoe car buck carried by said support having an upwardly ried by said carriage and movable thereby to a presented work receiving surface, a carriage at 20 position in register with said buck, means engaged the rear of the buck having a shoe `supporting by ’said notch upon sliding movement of said car arm, a handle carried by said arm for moving riage for locking said carriage in this position, . the carriage, a shoe carried by said arm, and and means for relatively moving said buck and means pivoting said carriage on said support for said shoe into pressing engagement. pivotal movement about a fixed point below and 25 4. An ironing press comprising a support, a to the rear of the center line of the buck whereby buck carried by said support, a carriage having said shoe is swung toward said buck as it is an arm connected to said support to allow pivotal moved from the out-of-register position at the and sliding movement with respect to said sup rear of the buck to the in-register position above 30 port, said connection comprising a pin within an the buck. _ elongated slot, a notch in said arm, a shoe car ll. In an ironing press, a buck having spaced ried by said carriage and movable thereby to a ribs, a wire mesh screen on said ribs, a pad of position in register with said buck, a rod carried iìbrous material on said screen, said pad being by said support, said rod being engaged by said :a LA notchI on forward sliding of said carriage for lock ing said carriage in this position, and means for relatively moving said buck and said shoe into pressing engagement. 5. In an ironing press, a buck having spaced 40 ribs, a wire mesh screen on said ribs, a pad of ñbrous material on said screen, said pad being vapor pervious throughout substantially its entire surface whereby the steam generated during iron ing flows directly through the pad and through the mesh of the screen, and means enclosing the under side of the screen and spaced therefrom for protecting the screen from the atmosphere. 6. In an ironing press, a buck having spaced ribs, a wire mesh screen on said ribs, a pad of fibrous materialI on said screen, said pad being vapor pervious throughout substantially its entire surface whereby the steam generated during iron ing ñows directly through the pad and through the mesh of the screen, and means including a lower wall below said ribs for protecting the under side of the screen from`the atmosphere. 7. In an ironing press, a buck having a lower wall, spaced ribs above and extending trans versely of said lower wall, said ribs and said lower 60 wall providing a space for drainage of moisture vapor pervious throughout substantially its entire surface whereby the steam generated during iron ing flows directly through the pad and through the mesh of the screen, and means for condens ing the steam generated during ironing below said `screen for protecting the underside of the screen whereby the> pad will be maintained dry. 40 12. In an ironing press, a buck having a wire mesh screen, a pad of fibrous material on said screen, said pad being vapor pervious throughout substantially its entire surface whereby the steam generated during ironing ñows directly through 45 the pad and through the mesh of the screen, sup ports for lsaid screen having a spacing relatively -great compared to the mesh of the screen, a shoe adapted to cooperate with said buck, the tempera ture and heat capacity of said shoe being sutil 50 cient to convert the moisture in the material being ironed into steam which flows through said pad, and means for condensing said steam below said screen and for protecting the underside of the screen from the atmosphere whereby the pad 55 will be maintained dry. 13. In an ironing press, a support, a buck car ried by said support having an upwardly pre sented work receiving surface, a carriage at the rear of the buck having a shoe supporting arm, 60 along the lower wall beneath said ribs, a wire _ a handle carried by said arm for moving said car mesh screen on said ribs, a pad of ñbrous mate riage, a shoe carried by said arm, and means for rial on said screen, said pad being vapor pervious mounting the carriage on said support below said throughout substantially its entire surface where buck for pivotal movement about a fixed point and sliding movement with respect to said point 65 65 by the steam generated during ironing flows di rectly through the pad and through the mesh of whereby said shoe is movable to an in-register the screen, and means including said lower wall position above said buck and to an out-of-register for protecting` said screen from the atmosphere. ` position at the rear of said buck, the mounting for 8. In an ironing press, a buck having spaced the carriage being such that the carriage has a ribs, a wire mesh screen on said ribs, the spacing rearward sliding movement at the start of the of the ribs being relatively great compared to the movement of the shoe froml the in-register mesh of said screen, a pad of fibrous material on said screen, said pad being vapor pervious position. v - GEORGE W. WARDWELL, Jn.