US1542341A

US1542341A - Pressing machine

Info

Publication number: US1542341A
Application number: US370960A
Authority: US
Inventors: Deckert Oscar Robert
Original assignee: LIBERTY NAT BANK
Current assignee: LIBERTY NAT BANK; LIBERTY NATIONAL BANK
Priority date: 1920-04-03
Filing date: 1920-04-03
Publication date: 1925-06-16
Anticipated expiration: 1942-06-16

Description

June 16, 1925.

. O. R. DECKERT PRESSING MACHINE Filed April 5, 1920 3 Sheets-Sheet 1 1 N V EN TOR.

A TTORNEYS'.

June 16, 1925. I 1,542,341

o. RRDECKERT PRES S ING MACHINE Filed. April 5, 1920 3 Sheets-Sheet 2 INVENTOR.

J3 i w/aw ATTORNEYS.

June 16, 1925.

O.R.DECKERT PRESSING MACHINE Filed April 3, 1920 3 Sheets-Sheet 5 1 71% EN TOR.

A TTORNEYS a ga/W Patented June 16, 1925.

UNITED STATES";

PATENT OFFICE.

, OSCAR ZBOBERT DECKERT, OF SYRACUSE, NEW YORK, ASSIGNOB, BY HESNE ASSIGN-- MENTS, '10 LIBERTY.NATIONAL BANK, TRUSTEE.

rnnssmo MACHINE.

ilp'pl ication filed April 3,

. To all whom it mag "concern."

Be it known that I, OsGAR'ROBER'r DECK7 ERT, a citizen of the United States, and a resident of Syracuse, in the county of Onondaga and State of New York, have invented a certain new and useful Pressing Machine,

' vlike characters designate corresponding of which the following is a specification.

This invention relates to garment pressing machines and has for its object a particularly simple, eflicient, economical and durable .power mechanism and control for operating thepresser head of such machines, and the invention consists in'the-novel features and 1n .the combinat ons and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings in which left in Fig; 3, the same being on a reduced scale.

Figure 5 1s a fragmentary plan view of the handle of the. presser element or head, and contiguous parts for controlling the flow of motive fluid as air to the lower cylinder. l

Pressing machines of the. type having an upper presshead carried by a frame or lever pivotedbetween its ends and operated by a pairof toggle links ivoted together and at their ends respective y to such lever and to the main frame have heretofore been operated by foot pedals, this type of machine being used generally and substantially universally in laundries, clothing factories, tai-- lor shops, etc., and although the work actually performed-should not require arduous efi'ort,nevertheless on account of the mechanism .of the machine, the operation requires a heavy or strong operator.

My invention makes the o ration of a pressing machine easy and in I armony with the work itperforms so that the machine can be operated by girls and does not require the service of a strong man. J This machine comprises generally, a movable presser element movable toward, but

1920. Serial no, 870,960.

ablyefl'ected by apower actuator. Therefore in the illustrated embodiment of my invention, the, actuating mechanism comprises means for moving the presser element toward its pressing position at a relatively fast rate and little force and finally into. pressing position with great pressure, and such mechanism comprises a plurality of actuators arranged to be brought into action successively to move the presser element in one direction.

I have illustrated my invention as embodied in a garment pressing machine having a pressing head and a lower buck but it will be understood that the invention is not limited to this type of machine, but may be applied to laundry machines, seam pressers, etc.

1 designates the presser element or head which is movable toward and from a lower buck '2 mounted upon a frame 3 of any suitable form, size and construction. The presser element may be of any suitable form, size and construction. a

The presser element-1 is carried in any suitable or well known manner by a rocking carrier or support which is here shown as a lever 4 in the form of a yoke pivoted between its ends on a shaft 5 mounted in bearings 6 provided on an upright 7 rising from the frame, the presser head being carried at the front end of this yoke or lever 4.

The actuating mechanism in addition to the two actuators includes power transmitting parts having movement relatively to each other and connected to the support for the presser head, these actuators being connected to the presser element or the support therefor to first move the presser elementquickly toward pressing osition and then into-pressing position wit relatively great force. The motion of the first actuator is transmitted indirectly to the support for the presser element through power transmitting parts whichare movable relatively to each other-while the movement of the second av tuator is applied directly, that'is, unmodified by'movable power translating devices to the support 4 for the presser element. These power actuators are here shown as pistons movable in cylinders to which a motive fluid is supplied.

' the cylinder being comparatively-long, and

of small diameter with respect to the cylinder 11 for the piston 9, so that the piston 8 has a long quick throw, while the piston 9 has a short powerful throw.

-The power transmitting mechanism be' tween the piston 8 and the support 4 for the presser element comprises relatively movable parts which modify the force of the piston 8, these parts being here shown as toggle links12, 13, the link 12 being pivotallyconnected at 14 to the rear arm of the support 4 for the presser element 1 and 'the links being pivoted together at 15 and toggle links have been formed witha stop joint 16 arranged to come into action when the toggle links are in or slightly beyond a straight line. The links are connected to the piston 8 by the piston rod 17' which is here illustrated as pivoted at its outer end on the pivot 15 of the toggle joint. I The link 12 is composed of end pieces, an intermediate piece 18 which is adjusted endwisely, mediate piece in its adjusted position. However, the construction of this link 12 forms no part of this invention and therefore further description is thought to be' unneces sary.

The motive fluid as compressed air or steam when supplied to the front end of the cylinder 10 will force the piston 8 rearwardly and move the toggle from the position indicated in dotted lines in Fig.' 1 into and beyond a straight line as indicated in full lines, and such moveinentwill move the presser head in its support from the position shown in dotted lines toward that shown in full lines, that is, from open or elevated position to but short of pressingposition.

If the motive fluid were now cut off the toggle would unfold automatically due to the counterweight 19 and returningspring 20.

The motion orpower of the piston 9 is transmitted directly or unmodified to the support 4 through the straightened toggle links 12 and 13, the toggle link 13 being pivot ed at its outer-or lower end at 21 to the piston rod 22 of the piston 9. After the moved into or beyond and means for holding this inter a straight line as indicated in full lines in Fig. 1, by the piston 8, motive fluid is thenpermitted to enter the cylinder 11 and actuate the piston 9 and while the force of

valve casings

27 and 28 which communicate through

pipes

29 and 30 with the cylinders 10 and 111 v The means for controlling the flow of motive fluid to the cylinders 10 and 11 also "includes mechanism by which such fluid is prevented from passing to the cylinder 11 unless the pressing head is down, or unless the piston 10 has been actuated to straighten the toggle, that'is, to move the pressing head from its up? position into nearly pressing position.

The flow of motive fluid to the cylinder 10 is controlled by valve mechanism located within the casing 27 and to the cylinder 11 through a valve mechanism located in a casing 28. practically the same in construction and are of the construction shown in Fig; 3 but may be of any suitable form, size and construction.

The valve mechanism includes endwisely movable rods 31 or 32, the rod for the casing 27 being designated 31, the rod extending lengthwise of the

casing

27 or 28 and having

valve heads

33 and 34 thereon movable alternately into engagement with

seats

35 and 35 within the casing. thus one valve' head is seated while the other is unseated. The movement of the rod is against the action of a returning spring 36 which tends to hold the valve mechanism with the valve head 33 on its seat 35. These valve heads are movable respectively in

chambers

37 and 38 in the valve casing which chambers are connected by a passage 39 which communicates with the pipe leading to the corresponding piston chamber, that is, the outlet These valve mechanisms are lot for the casing 27 communicates with the pipe 29 and the outlet for the casing 28 communicates with the pipe 30.

When the rod 31 or 32 is elevated as will be hereinafter described, the valve head 33 is unseated and the valve head 34 seated permitting the air to flow from -the feed pipe, branch 25, casing 27 or from the branch 26'to the casing 28 and hence part way throughthe passage. 39 through the

pipe

29 or 30 to the cylinder 10 or 11.

When the operating force applied to move the rod upwardly is discontinued, the spring 36 causes the valve to return to its normal position, permittingthe airin the cylinder "10 or 11 to exhaust back through the pipe lower'endof the rod 31 and the other arm being provided with a suitable foot engaging part or pedal '43.

The valve within the casing 28 is operated by a lever 44 pivoted at one end at 45 to a bracket or other support 46 and is con nected at its other end withmeans for lifting it. Controlling means is provided for normally reventing the pperation of the valve within the casing 28 while the presser element 1 is in its elevated or starting position, that is, the positionindicated in dotted lines in Fig. 1,-andpermitting the opening of this valve only until the presser element has been moved to nearly pressing position, either by hand or by the operation of the piston 8, it being understood that the pressing head may be pulled downwardly into nearly pressing position by means of the usual handle 47 provided thereon or the front end of the yoke orsupport 4 therefor.

This controlling means comprises generally, a plurality of parts, one of which is provided with a handle, a stop for normally preventing movement of the parts sufiiciently to operate the valve, the stop being arranged to be moved out of operative position-when the presser head reaches nearly pressing position, that is, its position assumed when the toggle links 13, 14 straighten. In the illustrated embodiment of my invention, one of these parts is carried by the upper pressing element or the support 4 therefor but eccentric to the axis or pivot 5 of the support, and hence partakesof the same movements as the presser element 1 and is connected to the other of said parts by a lost motion connection which is taken up by the movement of the presser element toward pressing position. The stop is also shown in this embodiment of my invention as carried by the support 4 andwhen the, presser element is up limits the movement of the part movable with the presser element so that it. cannot be moved far enough to take up the lost motion. However, it permits sufficient movement of this part to operate the valve when the lost motion has been taken up by reason of the prcsser element 1 having been moved into nearly pressing position.

48 designates the, part of the control mechanism movable with the presser element 1, this part being illustrated as a rod pivoted at one "end at 49. to a hand lever 50 mounted to rock about the axis of the handle 47, the'rod being connected at its other end to another of such parts of the control mechanism as a lever 51 by a lost motion "connection.

This lost motion connection may be provided in any suitable manner and as illustrated the rod 48 slides through an eye provided in the upper part of another part as 'alever 51 and by a shoulder 52 provided on the rod and spaced apart from the lever 51 a suitable distance and movable into engagement with the lever when the head approaches its pressing position so as to actuate such lever. A similar shoulder 53 sideof the lever to that on which the shoulder 52 is provided for restoring the part-- 52, and valve operating mechanism to be described, operated thereby.

The lever 51 is mounted upon the shaft 5 and is provided with an arm 54 below the shaft which is connected to the upper end of a rod 55 having a shoulder or lifter 56 at its lower end extending under the lever 44 to move the lever 44 and hence lift the valve rod 32 when the handle 50 is operated. I

A yielding connection is provided between the rod 55-and the litter 56 in order to provide for movement of the rod after the valve has been lifted and the head 34 has been pressed against its seat 35. This yielding connection consists of a tension spring 57 encirclingthe lower end of the rod 55' and connected at 58 thereto and at 59 to the lifter. As shown, the rod 55 is connected to the lifter 56 by means of a sleeve 60 encircling the reduced shank portions Gland 62 of the rod and shoulder or lifter respectively.

The stop device which normally limits the movement of the rod 48 so that the lost motion cannot be taken up when the presser element is in lifted position, is a. fixed shoulder having the same movement as the p-resser element 1 and provided on the yoke 4, it being shown as the end surface 63 see Fig. 5 of a cutout 64 provided in one of the arms of the yoke 4, this shoulder being arranged in the path of. a pin'65 extending laterally from the hub 66 of the lever 50. Obviously when the presser element 1 is in,

the dotted line position shown in Fig. 1

the lever 50 cannot be thrown far enough to take up the lost motion between the shoulder 52 and the lever 41 and hence not far enough to operate the lever 51, but when the .presser element is moved toward its down position the shoulder 52 moves toward the rear side of the lever 51, taking up the'lost motion so that if the lever 50* is now opera-ted it can move to the full extent of its movement moving the rod 48 endwisely, the lever 51 forwardly, the rod 55 upwardly, causing it to lift the valve rod 32 and permit the motive fluid to pass through ton 8 will throw the valve casing 28 to the cylinder 11.

The valve within the casing .25 is held open to permit the pressure from the piston 9 to be applied. for any desired length of time by a suitable ratchet device here shown as comprising a pawl 67 coacting with teeth-68 on the rod 55, this pawl being pivoted'at 69 between its ends to a bracket 70 suitably mounted on the valve casing 28, the pawl being operated to disengage the rack by means of a suitable operatlng lever as a pedal 71, Figs. 1 and 2, pivoted at 72 between its ends and arranged with the rear arm thereof against the end of a push rod 73 pivoted at 74 to the tail of the pawl 67. The movement, of the lever 71 is transmitted to the rod through a spring 75 suitably located and shown in Fig. 1 as encircling the rod73 and pressing against the rear arm of the foot lever 71, the spring permitting the rack to ratchet upwardly past the pawl when the lever 50 is being operated.

During upward movement of the rod 55 by the handle 50 the rack ratchets past the pawl .68 and when the rod discontinues its upward movement the pawl holds it in elevated position.

' When it is desired to discontinue the pressure on the presser element 1, the pedal 71 is pushed downwardly, thus moving the pawl out of engagement with the rack so that when the lever 50 is pushed rearwardly the shoulder 53 on the rod 48 pushes the lever 51 rearwardly and this lever moves the rod 55 downwardly to close the valve in the casing 28 and open the valve head 34 so that the aircan exhaust from the cylinder 11.'

As soon as the pressure is released in the cylinder 11 the spring 23 acting on the pisthe piston 8 forwardly far the toggle links 12 and 13 movement and the folding enough to start on their folding movement will be continued by'the counter- .weight 19 and spring 20.

A valve 76 is provided in the branch 25 to regulate the amount ofpressure passing to the cylinder 10 thereby controlling the speedat which the presser element moves from its starting position into nearly pressing position.

In operation, the operator arranges the garment on the lower buck 2. presses the pedal 43 to permit the flow of air or motive fluid to the cylinder 10, but instead of doingthis the operator may pull the presser element down into nearly pressing position by'hand if he'so desires. If during the movement of the presser element by the piston 8 the operator happens to have herhands on the lower buck, they will not beinjured, asthe presser element stops far forthe purpose set forth,

enough short of such injury. I

The operator then pulls the lever 50 for-- wardl permitting the motive fluid to pass into t e cylinder 11 and the power thereof is transmitted unmodified. to the yoke or support 4 exerting a powerful pressing effect on the presser element 1.

The piston 9 may be continued under pressure as long as desired or necessary, and

released by pressure upon the lever'71.

pressing position to avoid having a longihrow and the other a short throw, and means for controlling-the flow of a motive fluid to the cylinders, substantially as and for the purpose set forth.

3. In a pressing machine, a movable presser element and actuating mechanism therefor comprising a pair of toggle links, and means for applying pressure to the to gle links includlng. a piston, a cylinder in which the piston is movable, the piston being connected to the outer end of one of the loo toggle links, substantially as and for the I purpose described.

In a pressing machine, a movable presser element, and actuating mechanism therefor comprising a pair of toggle links, and means for a plying pressure to the toggle links inclu in a piston, a cylinder in which the piston is movable, the piston being connected to the outer end of one of the toggle links, and means for actuating the toggle links toward and from a straight line, substantially as and for the purpose specified.

5. In a pressing machine, a movable presser element, a support for said element, actuating mechanism comprising toggle links, one being connected at itsouter end to the support, means for moving the toggle links comprising a piston, acylinder in which the piston is movable, and a connection between the piston and the toggle links, a second piston, a cylinder in which it is movable, 0nd mentioned piston and the outer end of the other toggle link, and means for controlling the flowof a motive fluid to thecylinders successively, substantially as and- 6. In a pressing machine, a movable presser element toward pressing position,

and a stop device located to normally prevent operative movement of said part to take up the lost motion when the presser element is up, substantially as and for the purpose set forth;

7. In a pressing machine, a movable presser elementmounted to have movementstoward pressing position andinto pressing position, an actuator for effecting the movement into pressing position, and mechanism for controlling the operation of said actuator andpreventing the operation thereof until the pressing element is first movedtoward pressing position, said mechanism including movable parts connected together by a lost motion connection, one of said parts being movable with the presser element and having a handle associated therewith and arranged to take up the lost motion' as the presser element moves toward pressing position and a stop arranged to prevent movement of said part to take up the lost motion when said element is out of pressing position, substantially as and for the purpose described.

8; In a pressing machine, a movable presser element mounted to have movements toward pressing position and into pressing position, a rocking support for I said element, an actuator for rocking the support after the support has been initially rocked to carry the presser element toward pressing position, and mechanism for controlling the operation of said actuator and preventing the operation thereof until the presser element is first moved toward pressing position including parts connected together by a lost motion connection, one of.

which is carried by the support to move about the axis thereof in an arc ofdifi'erent radius than the radius of the arc in which another part moves to take up and restore the lost motion, and a stop device arranged to prevent movement of said part to take up the lost motion'w-hen the presser element is out of pressing position, substantially as and'for the purpose specified.

9. In a pressing machine, a movable presser element mounted to have movementstoward pressing position and into pressing position, arocking support for said element,

the support' has been initially rocked to carry the presser element toward'pr'essing ,an actuator for rocking the support after position, and mechanism for controlling the operation of said actuator and preventing the operation thereof until'the presser element is first moved toward pressing position including parts connected together by a lost motion connection, one of which is carried by the support to move about the axis thereof in an arc of different radius than the radius of thejarc in which another part moves to take and restore the lost motion, and a stop device arranged to prevent movement of said part to take up the lost motion when the presser element is out of pressing position, said stop device beingcarried by the support eccentric to the axis thereof, gubstantially as and for the purpose set orth.

10. In a pressing'machine a lower presser element, an upper presser element movable toward' 'and from the lower presser element, actuating mechanism for the movable element, comprising a plurality of actuators arranged to be brought into action successively to bring the ,movable element toward and into pressing position, means for controlling the operation of the secondly oper atedactuator, incl'uding mechanism having a handle carried by'the movable presser ele-' ment, for controlling the operation of the secondly operated actuator, and connec- 'tions to said handle arranged out of effective position when the press is open, and movable into effective position to be operated by the handle only after the press head is moved initially toward closed position.

11'. In a pressing machine a movable presser element, actuating mechanism therefor comprising a plurality of actuators arranged to be brought into action successively to move the presser element toward and into pressing position, and means for controlling the operation of the actuators including two movable parts connected together by a lost motion connection, one of said parts being arranged to take up the lost motion during the operation of the first actuator and a stop device for normally preventing operative movement of said part to take up the lost motion when the presser element is up, substantially as and for the purpose specified.

12. In a' pressing machine, a movable presser element, actuating mechanism therefor comprising a plurality of actuators arparts connected together by a lost motion,

one of said parts being movable with the presser eleme nt and having a handle asvent taking up of the lost motion when the presser element toward and .sociated therewith and arranged to take'up presser element, a rocking support for said element, and actuating mechanism comprising a plurality of actuators'arranged to be brought into action successively to move the into pressing position, and means for controlling the operation of the actuators including parts, one being endwisely movable and carried by the presser element and its support, the parts being connected by a lost motion arranged to be taken up by the rocking movement of the support, and a, stop arranged to prevent endwise movement of said part while the presser elementis up and movable out of operative position, during movement of the presser element toward pressing position, substantially as and for the purpose described 1 14. ,In a pressing machine, a movable presser element, two coacting control parts connected together by a lost motion connection, a stop device arranged to normally prepresser element'is up, the lost motion con nection being arranged to take up the lost motion during movement of the presser head and to move said stop device out of operative position during the movement of the pressing head toward pressing position, sub stantially as and for the purpose specified.

15. In a pressing machine a movable presser element, arocking support therefor, control mechanism including two parts, one an endwisely movable rod movable with the presser element and its support and having a handle associated therewith, said parts be-' ing connected together by a lost motion and the presser element, its support and the endwisely movable part being movable relatively to the other of said control parts to controlling a motive fluid under pressure,

and means for holding the valve open and for. releasing the valve at will, the holding means including a ratchet device and a device for operating the ratchet device, substantiallyas. and for the purpose described.

In testimony whereof, I hate hereunto signed my name, at Syracuse, in the county of Onondaga, and State of New York, this 13th day of March, 1920.-

OSCAR ROBERT DECKERT.