US2123368A - Ironing machine - Google Patents

Description

Y T1933- E. F. LOWEKE El AL 9 3 IRONING MACHINE Filed Sept. 22, 1953 7 Sheets-Sheet l f INVENTORS. ffW/N OWf/(E .400 fJE 5 BY fi/l/PVEY C. ,SW/F r ATTORNEY.

July 12, 1938. E. F. LOWEKE ET AL IRONING MACHINE Filed Sept. 22, 1933 7 Sheets-Sheet 2 IN VEN TORS.

flaw/v FLon/EKE AND BY HARVEY Cf SW/F7 ATTORNEY.

July 12, 13& E. F. LOWEKE El AL IRONING MACHINE Filed Sept. 22, 1933 7 Sheets-Sheet 3 ATTORNEY.

y E. F. LOVVEKE ET AL IRONING MACHINE Filed Sept. 22, 1933 7 Sheets-Sheet 4 fJE. 5 ,7

INVENTORS, Emu/w E Lows/rs m HARVEY CfJw/Fr ATTORNEY.

July 12, 1938. E. F. LOWEKE ET AL IRONING MACHINE Filed Sept. 22, 1935 7 Sheets-Sheet 6 INVENTORS. f/PW/N FL OWE/n5 m C Jw/Fr BY fiA/PVE) ATTORNEY.

.Fu ly 12, 1938. E. F. LOWEKE ET AL IRONING MACHINE Filed Sept. 22, 1933 7 Sheets-Sheet I INVEN TORS. /v FLOW A/il EY C. 4 7

ATTORNEY.

Patented July 12, 1938 IRONING MACHINE Erwin F. Loweke and Harvey 0. Swift, Detroit, Mich., assignors to Hydraulic Brake Company, Detroit, Mich, a corporation of California Application September 22, 1933, Serial No. 690,620

32 Claims.

This invention relates to ironing machines, and more particularly to that type known as domestic ironing machines.

An object of the invention is to provide an ironing machine operable by fluid pressure means eliminating undue manual effort on the part of the operator.

Another object of the invention is to provide an ironing machine including relatively movable ironing elements, one being automatically displaceable to compensate for variations in the thickness of the work.

Another object of the invention is to provide an ironing machine including relatively movable ironing elements, one of which is yi'eldingly supported to compensate for variations in the thickness of work and is operable by a fluid pressure means producing a uniform pressure on the work.

A further object of the invention is to provide an ironing machine including relatively movable ironing ,elements, and fluid pressure means for actuating one of the elements to produce maximum pressure on the work for the minimum amount of exertion on the part of the operator.

Yet a further object of the invention is to provide an ironing machine including relatively movable ironing elements, and a fluid pressure system for actuating one of the elements including means for supplying fluid under pressure to the system and a pressure producing means for actuating the system.

Other objects and advantages of the invention will more fully appear from the following description taken in connection with the accompanying drawings illustrating a preferred embodiment of the invention, and in which:

Figure 1 is a top plan View;

Figure 2 is a front elevation;

Figure 3 is a side elevation partly in section;

Figure 4 is a sectional view substantially on line 44, Figure 3, parts being broken away;

Figure 5 is a fragmentary view partly in elevation andpartly in section illustrating the arrangement of the reservoir and pressure producing means;

Figure 6 is a fragmentary view illustrating the operating lever;

Figure '7 is a sectional view substantially on line 1'|, Figure 3;

Figure 8 is a top plan view of the buck support;

Figure 9 is a longitudinal parts broken away;

Figure 10 is a vertical sectional view of the sectional view with reservoir and associated pressure producing means;

Figure 11 is a sectional view substantially on line lI-l I, Figure 10;

Figure 12 is a sectional view substantially on 5 line 12-12, Figure 11;

Figure 13 is an enlarged detail view of one end of the buck and buck support, including a fluid pressure actuated motor and a guide, parts being broken away;

Figure 14 is a fragmentary view of the buck and buck support;

. Figure 15 is a fragmentary view of the horns supporting the head, illustrating the arrangement of the lamps therein, and

Figure 16 is a diagrammatical illustration of the operating circuit.

Referring to the drawings for more specific details of the invention, I0 represents the frame of a table or other suitable support. The frame 20 has bolted or otherwise secured thereto a casting including a housing 12 having at one end thereof a hollow column l4 and at the other end a hollow column IS. The casting also has an outboard bearing l8 preferably connected to the wall of the housing by laterally extended arms.

The column l4 has therein oppositely disposed lugs 20 providing a suitable support for an operating unit indicated generally at 22. This operating unit includes a reservoir, a pressure producing device supplied therefrom, and a relief valve associated with the pressure producing device. As shown, a casting 24 has oppositely disposed lugs 26 by which the casting may be secured to the lugs 20 in the column l4. The casting 24 has formed therein a cylinder 28 and a valve chamber 30 arranged in parallel relation to the cylinder. The casting 24 also has a cylindrical flange 32 to which is suitably secured a reservoir 34 adapted to be filled with suitable fluid. The reservoir has therein a piston ,36 having a concentric sleeve 38 into which is threaded a tubular piston rod 40 extending through an opening in the top of the reservoir. A leak-proof M cup 42 is fitted on the head of the piston, and held against displacement by a circumferential flange 44 on the sleeve 38; and a coil spring 45 of relatively high tension is interposed between the back of the piston and the top of the reser- 5o voir. The free end of the hollow piston rod 40 has threaded therein a plug 48 which may be removed for the purpose of filling the reservoir through the rod 48, and to facilitate this operation a hand nut 50 is threaded on the rod so that the spring 46 may be compressed during the ing operation.

The cylinder 28 has a port 52 providing a communication between the cylinder and the reservoir 34, and a suitable valve 58 is provided for controlling the port. The cylinder 28 also has a port 56 providing a communication between the cylinder and a chamber 58 having therein a check valve 60 for the control of a discharge passage 62. A piston 64 reciprocable in the cylinder 28 has on its head a leak-proof cup 66 held against displacement by a return spring 68 for the piston, interposed between the cup and the head of the cylinder; and the back of the piston has a recess I for the reception of a rod I2, and the rod is connected to the cylinder by a boot I4 for excluding dust, etc.

The sleeve or valve chamber 30 has a diaphragm 16 which divides the sleeve into two chambers I8 and 80, and a port 82 in the diaphragm provides a communication between the chambers. The chamber I8 is closed as by a plug, and a passage 86 communicating therewith is internally threaded for the attachment of a pipe line or conduit. The chamber 80 has a port 86 providing a communication between the chamber and the reservoir 80. A leak-proof cup 88 is positioned on the diaphragm I6within the chamber I8 and held against displacement by a spring80 interposed between the cup and the plug. The cup has an opening registering with the port 82, and the inner perimeter of the cup defining the "opening slightly overhangs the perimeter of the diaphragm defining the port, to provide an efficient seal for a valve 94.

The valve 94 has a stem 96 supported for reciprocation in a cage 98 threaded in the open end of the chamber 80, and a leak-proof cup I00 sleeved on the valve stem is seated on the inner end of the cage and held against displacement by a spring I02 interposed between .the cup and the diaphragm I6. The valve stem 96 also has thereon a collar I04, and a spring I06 of a predetermined load is interposed between the collar I04 and a ring I08 threaded in the outer end-of the cage.

The housing I2 and the off-set bearing I8 support a rockable shaft I I0. The shaft has thereon an arm II2, having a recess II4 which receives the piston rod I2. The shaft also carries an arm II6 bifurcated to straddle the valve stem 96 and to engage a nut I I8 threaded on the valve stem, so that the valve 94 may be opened manually and also automatically upon a predetermined pressure in the chamber I8. The shaft has suitably secured thereto an operating handle I20 preferably adjustable angularly as by an eccentric I22 and limited in its movement as by a stop I24.

The column I4 has suitably secured thereto a buck support I26 including an elliptical receptacle or bowl I28 having therein a partition or an upwardly extended flange I30 connecting the bottom and side walls of the bowl to provide a compartment I32 having a drain opening I34 adapted to be closed as by a conventional plug.

Suitably supported in the respective ends of the receptacle are expansible elements or fluid pressure actuated motors I36 and I40. Each of these motors includes a cylinder chamber I42 having therein a reciprocable piston I44 having on its head a leak-proof cup I46 held against displacement by a spring I48 interposed between the cup and the head of the cylinder. The motors I36 and I40 are connected as by a pipe line or conduit I50. The motor I36'is connected by a pipe line or conduit I52 to the discharge passage 62 of the cylinder 28 with a fluid pressure switch I54 interposed; and the motor I40 is connected as by a pipe line or conduit I56 to the return passage 86 controlled by the valve 94.

A buck I58 reinforced by ribs I60 and a marginal flange I62 has dependent pins I64 and I66. The pins I64 are received by apertures in lugs I68 formed in the respective ends of the buck support-.126 to provide suitable guides for the buck, and interposed between the buck and the lugs I68 are springs I20 which provide a cushion seat for the buck. The pins I66 extend downwardly into the cylinders of the motors I36 and I40 and engage the piston I49.

As shown, the marginal flange I62 on the buck extends above and below the buck, and a groove H2 in the face of the buck adjacent the flange communicates as by passages I14 with the compartment I32. A suitable screen H6 is fitted on the face of the buck. This screen overhangs the groove I72 and is retained against displacement by the flange I62, and the screen is covered with a suitable fabric I28.

The column I6 has at its upper end a semispherical portion I80 in which is formed oppositely-disposed bosses I82 bored for the reception of a pin I84. This pin pivotally supports a hollow arm I86 and a semi-spherical portion I88 on the arm telescoping the semi-spherical portion I80 on the column. As shown, the arm I86 has a transverse web having an integral arm I90 projecting downwardly into the column I6. The arm I86 has a bearing I92 receiving the pivot pin I84 and a transverse pin I94 connected by corresponding parallel springs I96 to lugs I98 on the housing I2.

A bell crank lever 200 pivoted on the housing I2 has one of its legs 202 pivoted to one end of links 206, the other ends of which are pivotally connected to the arm I80, and the leg 206 of the bell crank lever 200 is connected by parallel springs 208 to suitable lugs on the housing. The toggle formed by the leg 202 of the bell crank lever 200 and the links 204 is limited in its movement in one direction by a suitable stop on-the housing I2. When the toggle engages the stop, the knee of the toggle issIightly past center, and when in this position the toggle serves to lock the arm I86 in a rigid position. The leg 206 of the bell crank lever 200 is connected by a link 2I0 to an arm or lever 2I2 mounted loosely on the shaft IIO between the levers H2 and I I6 and so engaged by an adjusting screw on the lever II2 that upon movement of the operating lever to relieve the applied force on the pressure producing device, the lever II 6 operates to open the valve 94 and the toggle is tripped immediately following the opening of the valve.

The arm I86 has formed integral therewith corresponding oppositely disposed hollow horns 2I4 having pivoted thereto as at 2I6 a head 2I8 adaptable for cooperation with'the buck. The head is provided with a conventional heating element 220, and positioned in the arm'I86 is a switch 222 for control thereof. The horns have arranged therein a bracket 224 supporting two lamps 226 and 228, the light from which is visible through thecolored glass inserts 230 and" 232 in the horns. A rod 234 attached centrally lamp 226 and fluid pressure switch I54, also lamp 228. The lamp 226 is effective when the fluid pressure'switch I54 is closed at a predetermined pressure, and the light therefrom is visible through the green insert 230, The lead 240 has connected therein switch 222, lamp 228, and heating element 220. The light from the lamp 228 is visible through the red insert 232 which indicates that the heat is on.

In operation, assuming that the electrical circuit of -i ;he apparatus or machine is connected to a suitable source of electrical supply, that the system is filled with fluid, that the piston 36 in the reservoir 34 is released to impose an initial pressure on the fluid in the system, and that the head 2I8 is elevated, under these conditions, upon placing work upon the buck I18 and lowering the head into operative position, the buck, which is yieldingly supported on the springs I10, is depressed correspondingly to the thickness of the work, and also accommodates itself to anyvariations in the thickness of'the work. After the buck is depressed, any excess fluid in the system, including the motors I36 and I40, is-returned through the conduitsl50- and I56 to the chamber l8 of the relief valve, and from thence through port 82, chamber 80, and port 84 to the reservoir 34. It is to be understood that the initial pressure imposed in the system by the load on the piston in the reservoir is not sulficient to raise the-buck but is adequate to retain the pistons of the motors always in engagement with the buck to' the end that lost motion is avoided. I

Now, upon depressing the lever I20, the shaft IIO is rocked to move the lever II2 through an angle and thereby actuate the piston 64, causing displacement of fluid in the cylinder 28 past valve 60, through port 62, conduit I52, into motor I36, through this motor and conduit I50 into motor I40, through motor I40, conduit I56 andpassage 86, to relief valve 94 loaded to crack at a predetermined pressure somewhat in excess of the pressure necessary to effectively iron the work.

Upon delivery of fluid from the cylinder- 28 of the fluid pressure producing device to .the

motors I36 and I40, the motors are actuated to move the buck against the head to create suflicient pressure between them to effectively iron the work. -Because of the particular arrangement of the pressure producing device, the motors, and their connections, the buck is floated on a column of fluid which provides perfect equalization and hence uniform distribution of pressure.

When pressure is built up to a sufficient intensityto eflectively iron the work, the pres sure switch I54 is actuated to close the circuit 238 and thereby light the lamp 226, the light from which is visible to the operator through the green insert 230 in the horn 2I4. Should the operator apply excessive force to the operating handle I20 causing undue movement of the piston 64 in"the cylinder 28 resulting in excessive pressure in the system including the motors I36 and I40, the safety valve 94 cracks and returns the fluid through valve chamber I8, port 82, valve chamber 80, and port 84 to the reservoir.

Upon completing the ironing operation, the operator raises the handle I20, resulting in movement of the lever I I2. through an angle to relieve the applied force on the piston 64. With the applied force removed, thepiston is returned to its retracted position by the return spring 68.

As the piston 64 returns to its retracted position, the valve 60 closes to prevent retrograde movement of the fluid in the system.

Simultaneously with the movement of the lever II2 to relieve the applied force on the piston of the pressure producing device, the lever H6 is actuated to open the relief valve and return excess fluid in the system to the reservoir. Concomitantly with this operation the lever 2I2 is actuated through its adjustable connection with the lever II2 to exert a pull on the link 2I0 and thereby trip the toggle 200, whereupon the springs I85 automatically swing the arm I86 on its pivot I84, resulting in elevating the head 2 I8 to inoperative position.

Although this invention has been described in connection with certain specific embodiments, the principles involved are susceptible of numerous other applications that will readily occur to persons skilled in the art. The invention is, therefore, to be limitedonly as indicated by the scope of the appended claims.

We claim:-

' 1. An ironing machine comprising a head movable manually into operative position, means for locking the head in operative position, a reciprocatory buck cooperating with the head, fluid pressure means for actuating the buck, means operated manually for actuating the fluid pressure means including means for unlocking the locking means, and means effective upon unlocking the locking means to move the head to inoperative position.

2. An ironing machine comprising a head movable manually into operative position, means for locking the head in operative position, a reciprocatory buck cooperating with the head, fluid pressure means for actuating the buck, means for relieving pressure in the fluid pressure means, means operated manually for actuating the fluid pressure means including means for actuating the relief means and unlocking the locking means,

and means effective upon unlocking the locking means to move the head to inoperative position.

3. An ironing machine comprising a head movable manually into operative position, means for locking the head in operative position, a reciprocatory buck cooperating with the head, hydraulic means for actuating the buck, means for supplying fluid under an initial pressure to the hydraulic means, relief means for the hydraulic means, pressure producing means for the hydraulic means, means for actuating the pressure producing means including means for actuating the relief means and the locking means, and means effective upon unlocking the locking means to move the head to inoperative position.

4. An ironing machine comprising a head mov able manually into operative position, means for locking the head in operative position, a reciprocatory buck cooperating with the head, means yieldingly supporting the buck, fluid pressure means for actuating the buck, means for supplying fluid under pressure to the fluid pressure means, a relief means for the fluid pressure means, a pressure producing means for the fluid pressure means, means for actuating the pressure producing means including means for actuating the relief means and the locking means, and means effective upon unlocking the locking means to move'the head to inoperative position.

5. An ironing machinecomprising a head movable into and from operative position, linkage including a toggle movable past dead center for locking the head in operative position, tension members for retaining the toggle pastdead center, and means for tripping the toggle including an operating shaft, a lever arm on the shaft, a link connecting the lever arm to the toggle, and tension members eifective' upon tripping the toggle to move the head to inoperative position.

6. An ironing machine comprising a head movable into and from operative position, linkage including a toggle movable past dead center to lock the head in operative position, a reciprocatory buck for cooperation with the head, fluid pressure actuated motors for actuating the buck, a pressure producing device for actuating the motors, an actuator for the device including linkage for tripping the toggle, and tension members effective upon tripping the toggle to move the head to inoperative position.

7. An ironing machine comprising a head movable into and from operative position, linkage including a toggle movable past dead center to lock the head in operative position, a reciprocatory buck cooperating with the head, a fluid pressure system for actuating the buck, a relief valve in the system, an actuator for the system including an arm for actuating the relief valve and an arm for tripping the toggle, and tension members effective upon tripping the toggleto move the head to inoperative position.

8. An ironing machinecomprising a head movable into and from operative position, linkage including. a toggle movable past dead center to lock the head in operative position, a reciprocatory buck cooperating with the head, a fluid pressure system for actuating the buck, a reservoir for supplying fluid to the system including an element imposing an initial pressure in the system, a relief valve'in the system, a pressure producing device for the system, an operative shaft,'an operating lever secured thereto, an arm on the shaft arranged to actuate the device when the'shaft is rotated in one direction, and a pair of arms on the shaft operative when the shaft is rotated in the other direction to trip the relief valve and the toggle, and-tension elements effective upon tripping the toggle to move the head to inoperative position.

9. An ironing machine comprising a head movable manually into operative position, linkage including a toggle for locking the headin operative position, a reciprocatory buck cooperating with the head, yielding supports for the buck to compensate for thickness of work when the head is moved into operative position, a fluid pressure system for actuating the buck, a reservoir for the system including an element imposing an initial pressure in the system, a relief valve' in the system, a pmssureproducing device in the system, an operating shaft, an operating lever secured thereto, an arm on the shaft arranged to actuate the device when the shaft is rotatedin one direction, and. a pair of azms on. the shaft operative when the shaft is rotated in the other direction to trip the relief valve and the toggle, and tension elements effective upon tripping the toggle to move the head to inoperative position.

10. An ironing machine comprising a head movable manually into operativepcsition, linkage including a toggle for locking the head in operative position, a yieldingly supported reciprocatory buck cooperating with the head, a fluid pressure system for actuating the buck including a pair of fluid pressure actuated motors, a

pressure producing device for delivering fluid for actuating, the last-mentioned ironing element, a pressure producing device in the last under pressure to the motors, a relief valve connected in the system, a reservoir for supplying fluid under pressure to the system, and manually operated means for actuating the device including means for concomitantly actuating the relief valve and breaking the toggle.

11. An ironing machine comprising a housing,

cooperative ironing elements supported thereon,

a shaft journaled in the housing, an operating lever secured to the shaft, a fluid pressure sys-' tem including a pressureproducing device supported in the housing and fluid pressure actuated motor means connected to the pressure producing device and arranged for actuating one of the elements, an arm on the shaft for actuating the pressure producing-device, a relief valve connected in the system, and an arm on the shaft for actuating the relief valve. I

12. An ironing machine comprising a housing, cooperative ironing elements supported thereon, a shaft journaled in the housing, an operating lever secured thereto, a fluid pressure system including a pressure producing device supported in the housing, fluid pressure actuated motor means connected to the device and arranged for actuating one of the elements, anarm on the shaft for actuating the device, a relief valve connected in the system, means for operating the relief valve including an arm on the shaft and a lost motion connection between the arm and the relief valve. a

13. An ironing machine comprising a housing, cooperative ironing elements supported thereon, a shaft joumaled in the. housing, an operating lever securedto the shaft, a hollow column communicating with the housing, a fluid pressure system for actuating one of the elements including a pressure producing device supported in the column and fluid actuated motor means connected to the device and arranged to support when the element is in operative position, a

support on the other column including an open top receptacle, fluid pressure actuated motor means in the receptacle, an ironing element for cooperation with the first-mentioned ironing element supported and actuated by the motor means, a pressure producing device supported in the last mentioned column and connected to the motor means, and means for operating the pressure producing device and the retaining means.

15. An ironing machine comprising a support including hollow spaced columns, an arm pivotally supported on one of the columns, an ironing element supported by the arm for movement into and from operative, position, means in the column for locking the arm against movement when the element is in operative position, a support on the other column including a receptacle com municating with the column, brackets in the re-.

ceptacle, an ironing element yieldingly supported on the brackets and arranged for cooperation with the first-mentioned ironing element, fluid pressure actuated motor meansin the receptacle mentioned column for delivering fluid under pressure to the motor means, and means for actuating the device and unlocking the locking means.

16. An ironing machine comprising cooperative ironing elements, a support for one of the elements including an open top receptacle, brackets in the receptacle, means for yieldingly supporting the ironing element on the brackets, fluid pressure actuated motor means in the receptacle for actuating the ironing element, a pressure producing device for delivering fluid under pressure to the motor means, and means for actuating the device.

17. An ironing machine comprising cooperating ironing elements, a support for one of the elements including a hollow column, an open top receptacle on the column having an opening in its bottom registering with the column, brackets in the respective ends of the receptacle having openings therein, dependent pins on the back of the ironing element slidable inthe openings, springs on the pins between the ironing element and thebrackets, fluid pressure actuated niotor means in the receptacle for actuating the ironing element,

a pressure producing device in the column, fluid pressure delivery pipes housed in the receptacle and the column and connecting the device to the motor means, and means for actuating the device.

18. An ironing machine comprising cooperative ironing elements, a support for one of the elements including a hollow column, an elongated open top receptacle on the column having an opening in its bottom registering with the column, a compartment in the receptacle having a drain opening, brackets in the respective ends of the receptacle, and means supporting the ironing element on the brackets above the receptacle, said ironing element having a marginal flange one edge of which extends upwardly, a continuous groove in the upper face of the ironing element adjacent the flange and passages connecting the groove and the compartment.

19. An ironing machine comprising an ironing head, a buck adaptable for cooperation therewith, a support for the buck including a. receptacle for the reception of condensate produced between the head and the buck, means in the receptacle for yieldingly supporting the buck over the receptacle, expansible elements in the receptacle for actuating the buck,'a fluid pressure producing device connected to the expansible elements, and means for operating the device.

20. An ironing machine comprising a pair of cooperative ironing elements, a support for one of the ironing elements including an open top receptacle, supportsin therespective ends thereof, an ironing element yieldingly supported on the supports, expansible elements on the supports for actuating the ironing element, the ironing element having a marginal flange extending above the upper face of the element and below its edge, a continuous groove in the upper face of the element adjacent the flange, and ribs on the back of the element certain of which have passages providing communications between the groove and the receptacle.

21. In an ironing machine, an ironing element including a convex plate having a peripheral flange one edge of which extends above the plate and a groove in the face of the plate adjacent the flange, and ribs on the back of the plate certain of which have drain passages communicating with the groove.

22. In an ironing machine, an ironing element including a convex plate having a peripheral flange extending above and below the plate and a continuous groove in the upper face of the plate adjacent to the flange, ribs. on the back of the plate certain of which have drain passages communicating with the groove, and a screen on the plate retained in position by the flange.

23. In an ironing machine, an ironing element including a convex plate having a perimetral flangeextending above and below the plate and a continuous groove in the face of the plate adjacent the flange, ribs on the back of the plate certain of which, have drain passages communicating with the groove, and a screen on the plate having its perimeter overhanging the groove and engaging the flange.

24. An ironing machine comprising a base, a hollow support thereon, an arm pivoted on the support, an ironing element suspended from the arm, a toggle in the hollow support for actuating the arm, means for actuating the toggle, and a tension element connected between the toggle and the base tending to break the toggle.

2 5. An ironing machine comprising a base, a hollow support thereon, an arm pivoted'to the support, an ironing element suspended from the arm, a toggle in the support connecting the arm to the base, means for actuating the toggle to lock the head against movement when in operative position, means for tripping the toggle, and means effective upon tripping the toggle for actuating the toggle to raise the arm.

26. An ironing machine comprising cooperative ironing elements, a base,'a hollow support thereon, an arm supporting one of the ironing elements, said arm being pivoted on the support and having a part extending into thesupport, a toggle including a bell crank-lever having its knee pivoted on the base and a link connecting one leg of the lever to the part, means connected to the other leg of the lever for actuation thereof, a fluid pressure system for actuatingthe other ironing element, and means for operating the fluid pressure system including means for breaking the toggle. I

27. An ironing machine comprising cooperative ironing elements, a base, a hollow support thereon, an arm supporting one of the ironing elements, said arm being pivoted to the support and having a part extending into the support,

a toggle including a bell crank lever having its knee pivoted on the base and a link connecting one leg of the lever to the part, a spring connecting the other leg of the lever to the base, springs connecting the part to the base, a fluid pressure system for actuating the' other ironing element, and meansfor actuating the fluid pressure system including means for breaking the toggle.

, 28. An ironing machine comprising cooperative ironing elements, a base, a hollow support thereon, an arm pivoted thereto, supporting one of the ironing elements, a toggle including a bell crank lever partly in the support, the knee of the lever being pivoted on the base, a link in the support connecting one leg of the lever to the arm, a

. spring connecting the other leg of the lever to the base for urging the toggle past dead center to retain the arm against movement, springs in the support connecting the arm to the base tending to raise the arm, means for tripping the toggle, a fluid pressure system for actuating the other ironing element, and means for operating the fluid pressure system including means for actuating the tripping means.

29. An ironing machine comprising cooperative i'roningelements, one movable manually into operative position, means for moving this element to inoperative position, a fluid pressure system for actuating the other ironing element including a cylinder, 2. piston movable therein, a reservoir communicating with the cylinder, a check valve controlling the communication, a relief valve con nected in the system, a spring-loaded piston in the reservoir imposing an initial pressure in the system; and means for actuating the piston including means for tripping the relief valve.

30. An ironing machine comprising cooperative ironing elements, one movable manually into operative positionymeans for.v locking this element .in operative position, a fluid pressure system for actuating the other ironing element including a cylinder, a piston movable therein, a reservoir for supplying fluid to the cylinder, a check valve for controlling the passage between the cylinder and the reservoir, a relief valve connected in the system, a spring-loaded piston in the reservoir imposing an initial pressure in the system, means for filling the reservoir through the piston, and means for actuating the piston in the cylinder including means for tripping the relief valve.

31. An ironing machine comprising cooperative ironing elements, a support for one of the ironing elements, an electrical circuit, a heating element for the ironing element connected in the circuit, a switch for control of the circuit, means connected in the circuit giving a visual indication when the circuit is closed, a fluid pressure system for actuating the other ironing element to create an ironing pressure between the ironing elements, a second circuit tapped ofl of the first circuit, a fluid pressure switch connected in the system and iri the second circuit operative to close the second circuit when the ironing pressure is created, means connected in the second circuit for giving a visual indication when the second circuit is closed, and means for operating the fluid pressure system. a

V 32. An ironing machine comprising cooperative ironing elements, a support for one of the ironing elements, an electrical circuit housed in the support, a heating element arranged in the ironing element and connected in the circuit, a switch in the support for control of the circuit, a signed device in the support indicating when the circuit is closed, a fluid pressure system for actuating the other ironing element to create an ironing pressure between the ironing elements, a second circuit in the support tapped 0d of the first circuit, a fluid pressure switch connected in the circuit for giving an indication when the second circuit is closed, and means for operating the fluid pressure system. 7

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