US1510725A - Pressing machine - Google Patents

Description

4 v 1,510,725 c. E. WAREAM ET AL PRESSING MACHINE Filed Aug. 30 1919 3 Sheets-Sheet 1 MN. Em

ME A .5 mm

INVENTORS k M6- W A TTORNE '3 Oct. 7, 1924- C. E. WAREAM ET AL PRESSING MACHINE v Filed Auz. 30. 1919 [NVEN T0135 I//// zV/ryzmk ll 7 z s llllllfirlllllllllwwmm A TTORA Patented 0st. 7, 1924.

OFFICE.

cnmns E. waamm AND ALBERT J. DREHER, or noawoon, OHIO, essroiwons r0 THE AMERICAN LAUNDRY mncnmnay COMPANY, or NORWOOD, 01110, A com.-

' PORATION OF OHIO.

-IPRESSING MACHINE.

Application filed August 30, 1919. Serial No. 320,929.

To all whom it may concern! Be it known that we, CHARLES E. WAREAM and A BERT J. DREHER citizens of the United States, residing at hlorwood, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Pressing Machines, of which the following is a specification.

. This invention relates to pressing machines, and more particularly towhat are known as small presses, such as are used for pressing cuifs and neckbands of shirts or other parts of wearing apparel.

The object. of the invention is to provide improved operating mechanism for producing relative movement between the pressing members, and more specifically improved operating mechanism so arranged as to permit the pressing'members to be moved part -way toward each other by foot power and thereafter brought into pressing relation under heavier. pressure by power means controlled by the operating of the foot treadle or other operating part. 1

. A further object of the, invention is to provide cylinder and piston mechanism for producing heavy pressure between the pressing members the flow of fluid pressure, such as steam, to the cylinder being controlled by the same operating member which produces relative movement of the pressing members.

A further object of the invention is to p provide steam actuated mechanism for prosuch that the steam for actuating said mom-y ducing relative movement between the members, the arrangement being bers also heats the lower member or bed and thereb avoids condensation of moisture 1n its pa ded surface.

A further object of the invention is to,

provide improved means for carrying away or discharging from the machine any moisture or; condensed steam which otherwise might collect in or "around the cylinder. and piston mechanism. p

, A further, object of the inventionis to generally simplify and improve the mechanism so as to provide a strong, powerful, and durable machine at minimum cost.

Further objects of the invention 'are in" part obvious and in part will appear more in detail hereinafter.

In the drawings, which represent one su-ittion; Fig. 3 is a side elevation, parts of the frame being broken away and in section on the line 3-3, Fig. 1,v to expose interior parts; Fig. 4 is a detail sectional elevation of the controlling valve mechanism, on the line 4-4, Fig. '5, the operating devices therefor being shown in elevation; Fig. 5 is a sectional elevation of the power operating mechanism, the section being taken on the line 3-3,' Fig. 1; Fig. 6 is a sectional elevation of the power operating mechanism, on the line 66, Fig. 5; Fig. 7 is a horizontal section on the line 77, Fig. 6; Fig. 8 is a sectional plan view on the line 8-8, Fig. 3; and F ig. 9 is a detail view of a bell crank lever, the view being a section on the line 9' 9, Fig. 3.

hollow upper pressing member 'or head 4:,-

whioh maybe of any suitable form and is preferably heated by supplying steam to or circulating it through its chamber 5; in the I usual manner in such machines. Below the head is mounted a cooperating bed 6, l

which is vertically movable to enableit to be brought into or moved away from-the pressing relation with the head. This bed.

preferabl is rovided with a padded work su port sli able horizontall upon said be 6, and carried by a re 8 movable through said bed and provided on its outerfend with a handle 9. This arrangement.

3 enables the padded Work support 7 tabs pulled out from registry with the head for R the wor support. A tenslon spring 10, connected at one end to a suitable stationary support and at its other end to a lever 11' pivoted at 42 to a bracket on the frame and githe work to or removingit fromv at itsupper' end having a, vertical slot 13 to receive a pin 14 on the rod 8, always tends to move the work support away from the position shown in F ig. 5, to aposition in head. The means shown comprises a foot member of a toggle, said arm bein treadle 15 pivoted at 16 to the stationary base and having an arm. 17 serving as one pivotally connected at 18 to the other togg e member 19 which .is provided with a [Ll-shaped yoke portion 20 the slot of which receives a pin 21 on a yoke 22, whose opposite ends extend out beyond the frame, as shown in Fig- 1, and are connected to rods 23 sliding vertically in guidin portions 24 of the frame. Said rods at t e1r upper ends are,

connected by knuckles 25 to rods 26 rigi with the bed member 6. v By depressing the treadle 15 the toggle. 17,19 is closed and the bed elevated toward the head, but this treadle motion does not bring the pressin members into pressing contact.' The relative motion of the pressing members is slow so that the operator always has time. to remove his fingers from the bed if her-chances to be holdingor arrangin the work thereon. f Y

n'the upper position of the bed the toggle' pivot 18 is moved slightly beyond a straight line joining the pivots 16, 21, as is usual. Consequently, the machine is provided with suitable releasing means for breaking the toggle, such as the release treadle 27 pivoted at 28 and having an arm By depressing the release treadle the pressure treadle 15 is elevated and'the toggle broken- The bed 6 is in onepiece with or is carried by a hollowcylinder 30 closed at its lower end by a ca 31. Said cylinder and cap, together with t e bed 6 supported thereby, have vertical sliding motion relative to a piston 32,fwhich lies within the cylinder and is supported at the upper end of a hollow piston rod 33. Said rod is supported at its lower end by a hollow base 34 suitably mounted rigidly upon the frame, such as by the provision of .feet 35 which are bolted to a cross member of the housing,

as shown in Fig. 6. To one side of said base is connected the hollow extension 36 of a valve casing 37, the valve mechanism where of controls-the flow of fluid pressure to and from the cylinder.

38 represents the fluid pressure supply pipe connected to-any sultable source of premure, preferably steam, while 39 represents the outlet through which the used steam. is discharged to any suitable point.

The fluid pressure supplied through the pipe 38 flows to an admission chamber :40

in the valve casing and thence through a port 41 to a chamber 42, the flow to said chamher being regulated by an adjustable needle valve 43 whose stem 44 extends to the outside of the valve casing for adjustment thereof.

to a suitable bracket 52 on the stationary frame. In chamber 47 is a similar valve 53 seating downwardly and. adapted to close a port '54 leading to the discharge chamber 55 with which the pipe 39 communicates. The stem 56 of said valve extends upwardly throu h a suitable packing and is connected by a ink 57 to the other arm of lever 50. Chamber 47 communicates with a passage 58 in the extension 36, said passage communicating with a vertical passage 59 in the hollow base 34 and piston rod 33. Said passages establishcommunication at all times between the chamber 47 and the chamber in the cylinder 30 above the piston therein.

The valve operating mechanism is as follows:

'-Lever 50 is connected at its outer end to a sleeve 60 slidable vertically upon a rod 61 and held between two compression springs connected by a link 66 to a portion of the treadle 15.

Let us assume that valve 43 is opened so that fluid pressure flows to the chamber 42, the parts being in the positions shown in the drawings with valve 45 closed and valve 53 open. Depression of the treadle l5, as before stated, advances the bed upwardly toward the head. At the same time the link 66 is pulled down and rod 61 is elevated. Theip'ressure in chamber 42 maintains the valve 45 closed until the pressure of the lower spring 62 exceeds thespressure in chamber 42, whereupon lever 50 is suddenly turned in a clockwise direction (Fig. 4), thereby opening valve 45 and closing valve 53. The parts are so adjusted that this valve operation does not occur until the bed has almost reached the head and is so close to it in fact that the operator must have. removed his fingers from between the pressing members. When the valve operation occurs fluid pressure flowsto chamber 47 and through the passages 58,59 to the cylinder 30 thereby elevating said cylinder movement of the bed the pin 21 slides up- 7 wardly through the slot in the yoke 20.

Pressure on the work may be maintained as long as desirable. When a sufiicient period has elapsed the release treadle 27 is depressed and the pressure treadle 15 is thereby elevated. Toggle 17 19 is' immediately broken, the parts moving to the position shown in Fig. 3, but until the valve mechanism again operates no downward movement of the pin 21 occurs. Elevation of the pressure treadle 15 raises the link 66 and pulls down-the rod 61. Valve 53 is held to its seat by the pressure in chamber 47, so that the valves do not move until the pressure of the upper spring 62 exceeds the pressure in chamber'47, whereupon the lever 50 is suddenly returned to its original position, valve 53 is opened and valve 45 is closed. This valve operation cuts off communication from the source of supply to the hollow cyl inder and establishes communication from the cylinder to the exhaust through the pipe 39. The parts are then ready for another operation. I I

The joint between the engaging surfaces of the piston and cylinder is closed by the usual piston rings. However, some steam may pass this joint. Suitable means is therefore provided for withdrawing the condensed moisture, and also for establishing communication from the chamher 67 beneath the piston and the atmosphere. The means shown comprises a channel 68 in the piston 33 and base 34, and which channel communicates at one end with the chamber 67 and at its opposite end with a pipe 69 leading to the sewer.

With the arrangement described the steam supplied for operation of the bed always keeps the bed hot, as a consequence of which the padded work supporting part never becomes cold enough to condense any moisture which may be in the work being ironed. Consequently, the padded work support does not absorb moisture and remains dry. The press is of comparatively simple construction and uses the same source of steam for operating the pressing members as for heating the same. It also enables heavy power-pressure to be applied without liability of in uring the operator.

What we claim is 1. A pressing machine, comprising relatively movable pressing members, a stationary piston, a cooperating movable c linder operatively connected to one of sai members, a hollow piston rod through which fluid pressure is supplied to said cylinder and a fluid supply means therefor, said cylinder providing a chamber surrounding said piston rod for receiving condense moisture, and means for conducting said moisture away from said chamber.

2. A pressing machine, comprising relatively movable pressing members, a stationary piston, a cooperating movable cylinder operatively connected to one. of said members, a hollow piston rod through which fluid pressure is sup-plied to said cylinder, and a fluid supply means therefor, said cylinder providing a chamber surrounding said piston rod for receiving condensed moisture, said piston rod having a channel communicating with said chamber for withdrawing moisture therefrom.

3. A pressing machine, comprising a stationary piston, a movable cylinder coopera-.

tively related thereto, means for supplying steam to said cylinder, a. movable pressing member in heat conducting relation with said cylinder, a cooperating pressing member, a foot treadle for producing relative movement between said pressing members, and means controlled thereby for controlling the flow of steam to said cylinder.

4. A pressing machine comprising relativelymovable cylinder and piston members, one of which is stationary, a work support in heat conducting relation with said cylinder, a pressing member co-operating therewith, means for effecting relative movement of said pressing members, and means controlled by said first named means for supplying steam to said cylinder.

5. A pressing machine, comprising a stationary frame supporting a fixed pressing member, a piston immovably supported by said frame, a pressure cylinder cooperating with said piston and movable relative to said stationary pressing member, a work support lying between said pressing memher and cylinder and in heat conducting said frame, a pressure cylinder cooperating with said piston and movable relative to said stationary pressing member, a work support lying between said pressing member and cylinder and in heat conducting. relation with said cylinder and movable relatively thereto into and out of position between said cylinder and pressing member, a foot treadle for producing relative movement between said cylinder and pressing member, a steam supply means, and means actuated by said treadle for controlling the flow of steam to said cylinder.

7. A pressing machine, comprising a stationary upper pressing member, a cooperating lower vertically movable pressing member, a work support horizontally movable, thereon into and out of registering relation with said pressing members, for such heating purposes and for also M1 operator-operated means for closing the producing relative cylinder and piston press, said lower pressing member includmovement to thereby producehenvy presing relatively movable cylinder and piston sure between said pressing members when 5 members, said cylinder member being so closed by the operator.

arranged'on the lower pressing member as In testimony whereof we atlix our signn- 115 to heat the same and thereby heat a garment tures. v 7 upon the work support, and means for CHARLES E. WARE-AM.

supplying steam to said cylinder member ALBERT J. DREHER.

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