US1947191A - Power pressing machine - Google Patents

Description

Feb. 13, 1934. E. DAVIS ETAL POWER PRESSING MACHINE Filed Aug. 4, 1930 3 Sheets-Sheet l 'INVENTORS.

Feb. 13, 1934. DAV|$ 5 AL 1,947,191

POWER PRESSING MACHINE Filed Aug. 4, 1930 3 Sheets-Sheet 3 'ITORNEYS Patented Feb. '13, 1934,

UNITED STATES PATENT OFFICE N. Y., assignor Ina, Syracuse, N. York to The Prosperity Company, Y., a corporation of New Application August 4, 1930. Serial No. 473,027

16 Claims.

This invention relates to pressing machines as garment and laundry presses. The principal object of the invention is to provide a pressing machinewhich may be quickly closed under initial light pressure by a single manual control, such as a foot pedal, and which thereafter may be closed under final heavy pressure, Without danger to an operator, by means of two hand control mechanism designed to give any desired degree of final heavy pressure. M

A further object of the invention is to provide two hand control means which will apply final heavy pressure, and to provide adjustable means for determining the amount of this pressure, to-' gether with means forincreasing the final heavy pressure in :graduated steps.

A further object is to provide adjustable means for determining the final heavy pressure of the pressing-machine and to provide cut-out means for rendering this pressure means inoperative, so

as to immediately apply maximum final'pressure. The invention consists'in the novel features and in the combinations and constructions hereinafter set forth and claimed.

to the accompanying drawings in which like characters designate corresponding parts in all the views. I

Figure lis a side elevation of a machine enibodying our invention, the press being shown as closed.

Figure 2 is a sectional view, partly diagrammatic, of the means for controlling the two step operation.

Figure 3 is a top plan view of the head of the pressing machine shown in Figure 1, together with a portion of the yoke.

Figure 4 is a ,front elevation, partlyin section, of the pressing machine head shown in Figure 3.

We have here illustrated our invention as embodied in a conventional type of laundry ironingor garment platen or jaw type press comprising a buck l and a head 2 movable toward and from the buck, the buck being mounted upon a bolster or goose neck 3 which'in turn is mounted upon a suitable frame designated generally 4. The head 2 is carried by the lever 5 pivoted between its ends at 6 to an upright 7 rising from the frame. f

As the motor means is of the fluid pressure type, the controlling means are valves, and the inv'ention in its simplest form, insofar as graduated pressure isconcerned, comprises a normally open operator operable exhaust valve, an operator controlled, normally closed intake valve which In describing this invention, reference is had' opens automatically when released, means, as a check valve, for holding the pressure in the motor when the intake valve s released, and operator releasable means for locking the exhaust valve closed. Insofar as the two' step, or the preliminary and final closing operations are concerned, the invention comprises an operator-operated normally closed intake valve which, when operated, energ'izes the motor sufficiently to close it under preliminary pressure, and additional operator control valves, which, when operated, permit additional pressure to flow to the motor to apply heavy pressure. The operation of the control valves, which efiects the heavy pressure is controlled by the operation of the control valves which effect the prelinimary closing, because the operation of the preliminary pressure control also closes the normally open exhaust valve, and without this valve being closed, motive fluid, as compressed air, will not flow to the motor if the control valves for effecting the final pressure are operated before the valves for eifecting the preliminary pressure. In the example of the invention shown, the preliminary control valve is foot operated, and the final or heavy pressure control valves are manually operated and are carried by or movable with the head so that they are normally out of easy reach of the operator and move into easy reach of the operator when the head comes into preliminary closed position. Other locations for these control valves may be used.

Also, preferably, the control valves for effecting the final pressure have two manuals requiring both hands of the operator to be used when closing the head under final pressure. This arrangement of foot operated and hand operated valves on the ironing head is used in order to facilitate fast operation of the machine and avoid danger to the operator and requires minimum movement or action of the operator's arms in spreading the work and thereafter actuating the two hand con- 7 trols on the head.

In operating a pressing machine, the operator lays the garment on the lower pressing element or buck, and holds it momentarily with one or both hands while the head is closing. The natural mental reaction of this is, that the operator will not hold onto the garment long enough for the 105 head to encounter his hands, but on the other the head will close'only under little or no preliminary pressure, and both hands are required to cause the actuating mechanism to deliver heavy pressure. Two manuals are required to attain heavy pressure in order that the operator, with this idea unconsciously in mind, will withdraw both hands at the same time from the press jaws. If but one manual were used, he might unconsciously withdraw but one hand, instead of withdrawing both hands at the same time. Therefore, the control valves for preliminarily closing the press are foot operated, and two manually operated valves requiring both hands are employed to. initiate final operation of the press.- These hand operated valves are preferably carried by or movable with the. press head.

The motor means, here shown, are of the pressure type as of the cylinder and piston type and comprises two units, one for effecting the preliminary closing movement, and the other, the

- final pressure movement.

8 designates a low power cylinder of the motor for effecting the preliminary or light pressure closing movement, and 9 the piston therein, the rod 10 of which is connected to the rear arm of the lever 5 in a manner hereinafter set forth,

' although it may be pivoted directly to the rear arm of the lever 5. The cylinder 8 is pivoted at its lower end at 11 to the back leg of the frame 4 and the piston moves upwardly therein on its power stroke.

12 designates the cylinder of the. unit for effecting final or jaw compression closing of the press, and 13 the piston therein having its rod 14 connected to motion transmitting mechanism to be presently described.

The motion transmitting mechanism, here il-' lustrated, comprises an angle lever 15 pivoted at 16 at its angle to the base of the frame and having a forwardly extending arm 18 and an upwardly extending arm 19. A link 20 is pivoted at 21 to the upwardly extending arm 19, and at 22 to the rear arm of the lever 5. The arm 18 is pivoted at 23 to the piston rod 14. The piston rod 10 is pivoted at its upper end to an arm 24 on the link 20 instead of directly to the lever 5.

The closing of the press is against the action of the springs 25 which tend to open the press.

As the motor means here shown is pressure operated, as by compressed air, the controllers are valves.

Avalve casing 31 contains, valves for controlling theflow of air to the cylinder 8 to effect the preliminary closing. These valves include a normally-closed, spring-pressed intake valve 32, and a normally open exhaust valve 33 connected together by a stem 34 so that they act-as a unit.

The intake end of the-casing 31 is connected to a feed pipe 35 for a motive fluid as compressed air. A pipe 38 connects with the casing 31 at a point between the valve heads, and to the intake port 3'7 of the cylinder 9. The valve is operated by an operator-operated member as a foot pedal lever 40 pivoted at 41 to the base of the frame and connected by a link 42 to the bell crank 43 which is pivoted at 44 to a lug on the casing 31.. The link 42 also connects with a bell crank 43 which operates a valve to be described later. The motion of the lever 40 is transmitted to the lever 43 through a suitable spring 46 encircling the link 42, and thrusting at one end against a fixed abutment 47 on the rod, and at its other end against the bell crank lever 43. The lever 40 is locked in its operated position by an operator releasable means as a latch 49 coactlng with a lug or keeper 50 provided on the frame 4 at the base thereof. The operating lever is returned, when released, to its normal position by a spring 40.

In operation, upon depression of the pedal lever 40, the exhaust valve 33 will be closed, and the intake valve 32 opened, permitting air to flow from the feed pipe 36, through the pipe 35, valve casing 31, and pipe 38 to the cylinder 8 to actuate the piston therein and preliminarily close the press, that is, bring the head 2 down on the work on the buck with little or no pressure, or with any desired amount oflight pressure. The throw of the piston 9 is suflicient for this purpose; and the piston is capable of additional movement to conform to the additional movement of the head2 when going under final pressure under the influence of the piston 13.

51 designates generally, a second controller which controls the flow of motive fluid to the cylinder 12 of the motor unit effecting the final pressure step. This controller is controlled by a third controller 52 which is'manually operated. There is an additional controller 53 similar to the controller 52. In order that both hands of the operator may be employed while the press is going under final heavy pressure, the controller 53 is in series with the controller 52 in the pressure supply line comprising pipes 36, 59 67 and 60.

The controller 51 comprises a casing 54 having a normally closed, 'spring-pressed intake valve 55, and a normally. openexhaust valve 56 therein, these being connected together bya stem, so that they act as a unit. The intake'end of 'the casing 54 is connected by a pipe 57 to a reducing or regulating or pressure-limiting .valve 58 to be presently described. This regulating valve 58 is connected through a pipe 59 to the feed line 36. The control valve casing 54 is connected from a point between the valve heads 55, 56 by a pipe 60 to the intake. port of the cylinder 12.

The valve heads 55, 56 are operated automatically by a suitable means, here shown as pressure operated means controlled by the controllers 52, 53. This pressure operated means comprises a diaphragm chamber 62 having a diaphragm 63 therein which acts on a sliding stem 64 thrusting against a lever 65 which also acts on the stem 66 of the exhaust valve head 56. The pressure side of the diaphragm chamber is connected through a pipe 67, controller 53, pipe 68, and controller 52, to the pipe 59 leading from the feed line 36.

Both controllers 52 and 53 are manually operated two-way valves normally arranged in position to prevent 'the flow of fluid therethrough;

that is, in the case of valves, closed position.

The controller 52 comprises a casing 70 having a normally closed. spring-pressed intake valve The valve heads in the casing 70 are operated by a manual as a lever '76 pivoted at 77 and thrusting against the stem 78 of the exhaust valve 72.

The exhaust valve in the casing 53 is operated by a similar lever 79 pivoted at 80 and.

' 8'7 separating it into two chambers.

turn to their normal thrusting against the stem 81 of the exhaust valve '75.

The operation of the handles or manuals '76, '79 is against the action of returning springs 82, or 83. The intake end of the casing '70 is connected by the pipe 59 to the pipe 36 and the outlet end of the casing '73 of the controller 53 is connected by the pipe 6'7 to the pressure side of the diaphragm chamber 62.

The pipe 60 leading from the-controller 51 to the cylinder 12 is connected to an exhaust pipe 84 leading to an exhaust valve casing 85 which has a normally open exhaust valve 85 therein, which is closed by the bell crank 43 when the pedal 40 is depressed, and is free to open the pedal 40 is released. The operatiomof the exhaust valve 85 in the valve casing 85 from the link 42 is, similar to the operation of the valves in the valve casing 31 from this link 42 as previously described.

, Owing to the exhaust valve 85 which is normally open and which is closed by the pedal 40 to close the exhaust .pipe 84, the press cannot be closed into final high pressure position without first being closed into preliminarily closed position. This is due to the fact that if the handles 76, 79 are firstoperated, the air would flow out past the exhaust valves 85 without building up pressure in the cylinder 12.

The pressure reducing or pressure limiting valve 58 which functions as a check valve may be of any suitable form, size and construction and comprises a casing 86 having a diaphragm An adjustthe diaphragm in one dihead 89 in open position.

able spring 88 presses rection to hold a valve The pipe 59 leading from the feed pipe 36 opens,

into the regulating valve 58 below the valve 89, and the pipe 5'7 leads from the valve chamber of the regulating valve 58 above the valve 89. The pressure of the spring is adjusted by means of a hand screw 90. When the pressure in the chamber 89 becomes greater than that of the spring 88, the valve 89 will close and hold a predetermined pressure in the cylinder 12. Thus, the pressure in the pipe 5'7 is a reduced pressure dependent on the adjusted pressure of the spring 88.

The term "reducing valve may not be strictly accurate as this valve functions to cause the press to deliver a predetermined heavy pressure, and when this pressure is reached, the valve 89 acts as a check valve to prevent back flow of air from the cylinder, and also serves to hold the diaphragm 63 in its operated position, and also permits the manuals 76, '79 to be released by the operator and the valves operated thereby to reposition, instead of being locked in operated position, which permits the application of graduated pressure by a one hand control to be described.

A duct 91 connects the pressure side of the diaphragm chamber 62 with the interior of the controller casing 54 of the controller 51. The duct is large enough to permit free passage of air and yet hold enough pressure in the diaphragm chamber 62 to actuate and hold the.

63. It acts as a by-pa s around thediaphragm valve 55.

In operation, the operator depresses the pedal i0 until the latch 49 engages the lug or keeper 50, thus closing the exhaust valve 83 and opening the intake valve 32 of the controller 31, and also closing the exhaust valve 85 for the cylinder 12. Air passes from the feed pipe 35 this being a ,feature when through the controller 31 and pipe 38 to the cylinder 8 to actuate the piston therein to close the press under initial light pressure.

If additional heavy pressure is desired, the operator depresses both handle levers 76, '79 of the controllers 52, 53 sothat air will pass from the pipe 36, through the pipe 59 controller 52, pipe 68, controller 53,,past thecheck valve 74 therein, and pipe 67 to the diaphragm chamber 62, and actuate the diaphragm 63 therein, to close the exhaust valve 56 and open the intake valve 55 so that air at a lower pressure will pass from the feed line 36 through pipe 59, reducing or check valve 58, pipe 57, controller casing 54 and pipe 60, to the cylinder 12 to actuate'the piston 13 therein and apply pressure to the head through the anglelever l8 and link 20. 1 Upon release of the handles '76, '79, the valve heads of the controllers 52 and 53 will return to their normal position and hence, the air pressure is locked in the diaphragm casing 62 by reason of the check valve head '74 of the controller 53 and also, by reason of the air passing by the intake valve 55 of the controller 51, through the duct 91. The reducing or check valve 58 permits the pressure to be delivered up to a predetermined point and after that point is reached, the pressure in the reducing or check valve will actuate the diaphragm 8'7 therein to close the valve head 89. If more pressure than that at which the regulating or check valve 58 is set, is desired, the operator again depresses the handles '76, '79 so that air will flow through the diaphragm chamber 62, through the duct 91, valve casing 54 and pipe 60, to the cylinder 12. The duct 91 provides a by-pass for air, at supply line pressure, to the motor 12 around the pressure regulating valve 58.

The amount of the additional pressure is dependent upon the time the handles '76, '79 are held depressed, or the number of times they are depressed.

The check valve '74 is so located as to permit the handles '76, 79 to return to their normal position without releasing the air pressure from the cylinder 12.

To open the press, the operator unlatches the latch 49 with his foot so that the valve heads in the controller 31 return to their normal position and airis free to exhaust back through the pipe 38 from the cylinder 8, and through the pipe 84 from the cylinder 12. Air also exhausts from the diaphragm chamber 62 through the duct 91, valve casing 54,'through pipes 60 and 84 to exhaust valve 85.

A suitable gage 92 to indicate the pressure delivered by the press is connected in the pipe system and located at any convenient point, the gage being here shown as connected by a pipe 93 to the pipe 60 which supplies the cylinder 12.

Preferably, means is provided for cutting out the regulating or reducing valve 58 in order that be delivered independently and without building full jaw pressure may of the regulating valve 58 up through various degrees of graduated pressure. H

two hand control manuals 76 and 79 have been depressed to open the intake valve 55.

The chamber 95 is connected by a pipe 98 to the feed pipe 36, the pipe 98 opening into the chamber 95 on the inlet side of the valve 97. The outlet side of the chamber is connected by a. pipe 98 and the pipe 57 to the intake end of the casing 54 of the controller 51. The valve 97 is held closed by a spring 99 and is opened when desired by air pressure acting against a diaphragm 100 in the chamber 96. The flow of airv to the chamber 96 to operate the diaphragm and open'the. valve 97 is controlled by a controller 101 includ-,

ing a casing 102 having a normally closed, springpressed intake valve head 103 and a normally open exhaust valve 104 therein and connected by a stem so that they form a two-way valve. These are operated by a manuallever 105 acting on an intermediate lever 106 which thrusts against the stem of the exhaust valve 104. The hand lever 105 is returned to normal positionwhen a return ing spring 107 moves the valves 103 and 104 to normal position. The valve heads 103 and 104 are locked in their operated position by a diaphragm 108 in a chamber 109, the pressure side of which is connected by a duct 110 to the interior of the casing 102, said diaphragm acting on a sliding stem 111 which thrusts against the intermediate lever 106.

The intake end of the casing 102 is connected by a pipe 112 to the pipe 67 controlled by the controllers 52, 53; and the casing 102 is connected by an outlet pipe 113 to the diaphragm chamber 96 of the cut out valve 94. Upon depressing the lever 105 at the same time the levers 76 and 79 are depressed, air will flow from the pipe 67, through casing 102 of the controller 101, and pipe 113 to the diaphragm chamber 96 of'the out out valve 94 and actuate the diaphragm 100 to open the out out valve 97 so that the air instead of .fiowing through the pressure regulating or check valve 58 will flow from pipe 36, through pipe 98, chamber 95 of the cut out valve, out through pipes 98 and 57, to the controller 51 and. thence, to the cylinder 12 quickly actuating the piston 13 to close the press under maximum pressure.

The pedal 40 controls the flow of motive fluid to the cylinder 8 to efiect the first or preliminary closing step by closing the exhaust valve 33, and opening the intake valve 32. The pedal 40 also closes the exhaust valve 85*, a necessary step before the fluid motor 12 can be operated to apply final heavy pressure. The controller 51 controls the flow of a predetermined final pressure through the feed line consisting of pipe 59, regulating or reducingvalve 58, pipe 57, valve casing 54, and pipe to the cylinder 12. The valves operated by the manuals 76 and 79 control the operation of the valves in the controller 51 through the pressure operated means, that is, the diaphragm chamber 62 and diaphragm 63 therein so tiiaat the predetermined pressure is delivered. The duct 91 constitutes a by-pass around the regulating valve 58 of the controller 51 so that successive operation of the handles 76 and 79 cuts out the regulating valve 58 and the air flows through the pipe 59, controller 52, pipe 68, controller 53, pipe 67, diaphragm chamber 62, by-pass or duct 91,

valve casing 54, and pipe 60, to the cylinder 12 to apply additional or graduated pressure.

The manual 105 serves to operate the controller 101 to cut out the regulating orreducing valve 58 so that when themanual 105 is operated simultaneously with the manuals 76 and 79, the air flows from the pipe 67 through pipe 112, controller 101,

, 3 and 4. A steaming pipe 113 to the diaphragm chamber of the cutout means. 94 to open the cut-out valve 97, which cuts out the regulating or reducing valve 58 so that air now flows with full pressure from pipe 36, through pipe 98, cut-out valve 97 and pipe 98, pipe 57 through the controller 51, and pipe 60 to the cylinder 12 to deliver any pressure above the predetermined pressure controlled by the regulating or reducing valve 58.

By our invention, the press can be quickly and safely closedunder initial light pressure and thereafter a predetermined heavy pressure delivered and additional pressure used, if desired, above the predetermined or set heavy pressure.

In operation, the operator first stretches and lays the garment or article to be pressed on the lower pressing element and holds it with both hands momentarily while the head is coming down into preliminarily closed position. The head is brought down into preliminarily closed position by depressing the pedal 40, thus opening the cylinder 8 to the intake of air, and closing the exhaust valve of the cylinder 12. The natural mental reaction isfor the operator to remove both hands before the head approaches the buck to a dangerously close position. The operator then reaches with both hands for the manuals 76 and 79 which are carried by the head,

and upon operation of the same, the press closes with a predetermined or set pressure dependent on the adjustment of the check or regulating valve 58, and the press is held closed under that pressure owing to said valve 58.

Two handles 76 and 79 are used in order that the mental reaction on the operator will cause him to naturally remove both hands at the same time. If additional pressure is desired, the operator depresses all three manuals 76, 79 and 105 thus by-passing around the regulating or reducing valve 58 and permitting additional air pressure, greater than thecapacity of the regulating valve 58, to fiow to the cylinder 12. The pressure is now locked in the cylinder 12 after each operation of the manuals 76, 79 and 105 by the check valve 74 to hold theironing head 2 down against the work on the buck 1 under the additional pressure graduated into the cylinder 12 as the operator watches the gage 92 to gain the desired degree of jaw compression for the particular work at hand.

The controllers 52, 53 on the head or some and 101 are mounted part movable with or in synchronism with the head and. hence, are normally out of easy reach of the operator and are movable by the closing of the head into preliminary closed position within easy reach of the operator, and the manual 105 of the controller 101 is grouped with one or the other of the manuals 76 and 79 so that it may be easily operated by the hand operating the manual 76 or 79. The grouping of the controllers is shown in Figures control 125 is also shown in the drawings but has no function in connection with the present invention, it being shown merely to illustrate the manner in which the handles may be grouped so that our invention may be operated without interfering with the steaming operation by conventional controlmeans.

'What we claim is:

1. In a pressing machine cooperative pressing elements, one of which is movable with respect erted by the operating means; and means for applying additional pressure over that determined by the adjustable pressure regulating means.

, 3. In a pressing machine cooperative pressing elements, one or which is movable with respect to theother; operating means for the movable pressing element; control means for said operating means including adjustable pressure regulating means for determining the pressure exerted by the operating means, and by-pass means for controlling the operating means independent- 13* of the adjustable pressure regulating means.

4. In a pressing machine cooperative pressing elements, one of which is movable with respect to the other; operating means for the movable pressing element; control devices for controlling the operation of the operating means through pressure regulating means; and auxiliary control mechanism for cutting out the pressure regulating means so that the control devices for the operating means control said operating means independently of the pressure regulating means.

5. In a pressing machine cooperative pressing elements, one of which is movable with respect to the other; operating mechanism for the movable pressing element including fluid motor means; devices for controlling the supply of working fluid to the motor means; a pressure regulating valve to control the pressure of the working fluid supplied to the motor means; and means for admitting additional pressure to the motor means in excess of the pressure determined by the pressure regulating valve.

6. In a pressing machine cooperative pressing elements, one of which is movable with respect to the other; operating mechanism for the movable pressing element including fluid motor means; devices for controlling the supply of working fluid to the motor means; a pressure regulating valve to control the pressure of. the working fluid supplied to the motor means; and by-pass means through which working fluid may be admitted to the motor means in graduated steps of pressure in excess of the pressure determined by the pressure regulating valve.

'7. In a pressing machine cooperative pressing. elements, one of which is movable with respect to the other; operating mechanism for the movable pressing element including fluid motor means; devices for controlling the supply of working fluid to the motor means; an adjustable pressure regulating valve to control the pressure of the working fluid supplied to the motor means; by-pass means to supply working fluid at line pressure to the motor means; and control mechanism for the by-pass means.

8. In a pressing machine cooperative pressing elements, one of which is movable with respect to the other; Operating mechanism for the'movable pressing element including fluid motor means; devices for controlling the supply ofworking fluid to the motor means; an adjustable pressure regulating valve to control the pressure of the working fluid supplied to the motor means; by-pass means to supply working fluid at line pressure tothe motor means; and means to said operator-operated controls to govern the degovern the degree of final pressure; and by-pass render the control devices operative to control the supply of working fluid through the by-pass.

means.

9. A pressing machine including cooperative pressing elements one of which is movable toward and from the other; operating mechanism for the movable pressing element; a flrst operator-operated single control means for the operating mechanism to cause the pressing elements to come together under initial light pressure; a second operator-operated two-hand control means for the operating mechanism to cause the pressing elements to come together under final heavy pressure; means associated with one of gree of final pressure; and means for increasing the final pressure in graduated steps, in excess of the pressure determined by' the governing means. 10. A- pressing machine including cooperative pressing elements one of which is movable toward and from the other; operating mechanism for the movable pressing element; a first operatoroperated control for the operating mechanism to cause. the pressing elements to come together under initial light pressure; a second operatoroperated control for the operating mechanism to cause the pressing elements to come together under final heavy pressure; means associated with one or said operator-operated controls to means for applying final pressure in excess of the pressure determined by the governing means.

11. In a pressing machine, cooperative pressing elements, one of which is movable with respect to the other; operating mechanism for the movable pressing element; a pair of control devices for the operating mechanism; manuals connected to the respective control devices and located at spaced apart points so as to require the operator to use both hands to control the operating mechanism; means governing the degree of pressure exerted by'the operating mechanism; means increasing the degree of pressure exerted by the operating mechanism; and manually operated control devices for the pressure increasing means including a manual located in close proximity to one of the other manuals so that it may be operated by the same hand as used to operate said other manual.

12. In a garment pressing machine in combination cooperative pressing elements, one of which 126 is movable with respect to the other; operating mechanism for the movable pressing element; two hand control means including spaced apart manuals mounted on the movable pressing element for controlling the operating mechanism to close the press under a predetermined pressure; and means for controlling the operating mechanism to apply additional pressure to the pressing elements including a manual mounted on the movable pressing element adjacent one of the two hand control manuals and in position to be operated by the same hand used to operate said two hand control manual.

13. In a garment pressing machine in'combination a buck; a pressing head movable toward and fromthe buck; operating mechanism for the pressing head including a fluid operated motor; means to supply working fluid to the motor including a pressure reducing valve; means to move the pressing head into preliminary closed position; two hand control means including a pair of manuals located on the pressing head for controlling the flow of working fluid through the pressure reducing valve; by-pass means to supply working fluid to the motor independently of the pressure 150 reducing valve; and a manual for controlling the bow-pass means, said manual being located on the pressing head adjacent one of the two-hand control manuals and in position to be operated by the same hand used to operate said two-hand control manual.

14. A garment or ironing press comprising coacting press jaws, operating means including a low power cylinder to close the press and a high power cylinder to produce jaw compression, a pressure line connected with each cylinder, a normallyclosed inlet valve and a foot control to open it in the line connected with the low power cylinder, a pair of spaced apart two-hand control valve means in series in the line connected with the high power cylinder to energize the latter, a pressure regulating valve means in the feed line connected with the high power cylinder to limit the power output of the latter to eiiect a predetermined jaw compression, a normally-closed shunt valve included in the pressure feed line connected with h'gh power cylinder around the pressure regulating valve to by-pass the latter, and a control manual to open the shunt 'valve to admit full line pressur to the high power cylinder.

, 15. A garment or ironing press comprising coacting press jaws, operating means including a low power cylinder to close the press and a high power cylinder to produce jaw compression, a pressure line connected with each cyl'nder, a normally-closed inlet valve and a foot control to open it in the line connected with the low power cylinder, a normally-open exhaust valve connected with the high power cylinder and means closing a normally-closed shunt valve included in the pressure feed line connected with high power cylinder around the pressure regulating valve to by-pass the latter, and a control manual to open the shunt valve to admit full line pressure to the high power cylinder.

16. A garment or ironing press comprising a frame carrying a press buck, a movable ironing head coacting with the buck, motor means to close the ironing head against the buck, a foot control including means to energize the motor means under low power to lightly close the ironing head, two-hand control means carried on the movable ironing head and operable to energize the motor means to produce final heavy jaw compression, means rendering the two-,-hand control inefiective until after the motor means has closed the head by low power, and a third control menu-1 ual also carried on the head and grouped conveniently with the two-hand control means and connected with a control device connected with the motor means to graduate upwardly by increments the high power energization of the motor means.

. ERNEST DAVIS.

LESTER C. KIENZLE.

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