US1374261A - Pressing-machine - Google Patents

Description

C. E. WAREAWAND G. N. LINK.

PRESSl-NG MACHINE.

APPLICATION FILED JULY 10, 1918.

1,374,261 Patented Apr. 12,1921.

3 SHEETS-SHEET 1.

c. E. WAREAM AND G N. LIN-K.

PRESSING MACHINE.

:APPLICATION FILED JULY 10, 1918. 1 3'74 261, Patented Apr. 12, 1921.

, v 3 SHEETS-SHEET 2.

1272022254723. M f M mumifi C. E. WAREAM AND G. N. LINK.

PRESSING MACHINE.

APFLlCATlON FILED JULY 10, 1918-v Patented Apr. 12, 1921.

3 SHEETS-SHEET 3.

onemzns a. wearer; Ann scones ii. 1.11m, or cmcmmrr,

OHIO, ASSIGNORS TO THE AMERICAN LAUNDRY MACHINERY COMPANY, OF NORWDOD, OHIO, A COB,-

ronarion or cure.

PRESSING-MACHINE.

Application filed. July 10,

To all-whom itmag concern:

Be it known that we, CHARLES E. VVAREAM and GEORGE N. LINK, citizens of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have in-- vented certain new and useful Improvements in Pressing-Machines, of which the following is a specification.

This invention relates to pressing ma chilies, and more particularly to what are known as small presses, such as are used for pressing or ironing th cuffs or neckbands of shirts.

v The object of the invention is to provide an improved press of the character described, in which more powerful pressure may be secured between the pressing members, and which press is of simple construction. is easy and safe to operate, and is provided with a convenient form ofcontrol mechanism.

A further object of the invention is to pro vide a press of this kind embodying the usual control levers which in turn control the application of fluid pressure to the pressing members, thereby to secure any desired pressing eii'ect.

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

In the drawings, which represent one embodiment of the invention Figure 1 is a front elevation of the upper portion of a pressing machine embodying the invention; Fig. 2 is a sectional elevation, from front to rear, through the lower portion thereof; Fig. 3 is a rear view of the valve devices. and the operating connection therefor; F 1g. 4 is a detail section on the line 4 1, Fig. 5; Fig. 5 is a plan view of the valve mechanism; Fig. 6 is a cross section thereof onthe line 6-6, Fig. 5; Fig. 7 is a detail plan view of the cap for the pressure cylinder; and Fig. 8 is a detail view of a modified form of piston.

It will, of course, be understood that the present invention is applicable to any form of pressing machine, whether it be for pressing fabrics, garments, parts of garments, or the like, as the particular style and-arrangement of the pressing members are more or less immaterial.

Briefly described the press illustrated comprises a suitable frame1 provided with:

upright arms 2 supporting a stationary pressing-member or bed 3, beneath which Specification of Letters Patent.

of the tom of the slot 22 the rod 5 and Patented Apr. 12, 1921..

1918. Serial No. 244,204.

is a coiiperating movable pressing member 4 carried on the upperend of a rod or support 5 having vertical sliding movement in the frame. ither or both of the two pressng members may be padded or have plain ironing surfaces, as desired, and either or both thereof may be suitably heated in any suitable manner such, as by steam, for eiample. The fabric, garment or portion of a garment to be pressed is placed between the two pressing members and subjected to pressure therebetween by upward movement of the rod 5 and lower pressing member, and the present invention now to be described is particularly concerned with the mechanism or devices for producing operating movement ofthe rod 5.

Directly beneath the rod 5, and in axial alinement therewith, is a hollow cylinder 6 suitably supported in the frame, such as by the bolts or screws 7. Said cylinder is provided with depending ears 8 to support a horizontal shaft 9 on which is pivoted the foot treadle 1O normally held in the position shown in Fig; 2 by a tension. spring 11 extendlng from said treadle to a stationary support 12 on the frame, said spring being preferably adjustable as to tension by the means shown. The rear arm 13 of said treadle is pivotally connected to'a head 14 having an ear 15 in which is secured a link or rod 16 pivotally connected at its opposite end to one arm of a bell crank lever 17 pivoted at 18 in the cylinder cap 19. The other arm bell crank leveris pivoted to a member 21 provided with an elongated slot 22 to receive a pin 23 carried by a collar 24 adjustabl secured in any desired position to the r0 5, such as by set screw 25. Memhere 20 and 21 cooperate as a toggle. lVhen the foot;trea,dle 10 is depressed thetoggle is straightened, and as the pin 23 is at the hotthe pressing member 4' carried thereby are elevated toward the bed.

Suit-able means is also provided for looking the foot treadle in the pressure position, for which purpose it is provided with a beveled pin 26 which cooperates with a detent 27 on a locking treadle 28 pivoted at 29 in the frame and normally held in the position shown in Fig.= 2by the compression spring. 30. When the main treadle .10 is depressed pin 26 moves past the beveled end of detent 27, pgshing said detent out of the way and allowing it to move in behind the pin 26 and thereby hold the main treadle depressed. By pressing down on the release treadle 28 the detent is released from the pin 26 to allow the spring 11 to return the main treadle to normal position.

In the cylinder 6 is a suitable piston 31 rigidly connected to the lower end of rod '5, which, of course, slides through an opening in the cap 19. Said piston is actuated by suitable fluid pressure, such as steam or compressed air. When steam is used the piston 31 is preferably of the form shown in Fig. 2, being provided with suitable piston rings 32, while if the motive fluid is compressed air the piston may be of the form shown in Fig. 8, being provided with leather or other suitable cup washers 33.

34 represents the casing of the valve devices for controlling the flow of fluid pressure to and from the motor cylinder. This casing is hollowed out to form a pressure chamber 35 communicating through a passage 36 and port 37 with a pipe 38 which may be connected to any suitable source of fluid pressure. The flow of fluid pressure to said pressure chamber is controlled by an adjustable valve member 39 cooperating with a seat 40 at the port 37, the stem41 of said valve being threaded into a plug 42 provided with a stufling -box 42. By rotating the valve stem the flow of fluid pressure to chamber 35 ma be increased or diminished, as desired. ressure chamber 35 communicates through a port 43 with a passage 44 leading outwardly through anextension 45 of the valve casing, and which extension is provided with a flange 46 for securing the valve casing to the cylinder 6, such as by the screws 47, in. which position passage 44 communicates with a passage 48 leading to the pressure chamber of the motor cylinder. Passage 44 also communi cates with an exhaust chamber 44 which in turn communicates by way of a port 49 with a passage 50, to which is connected a pipe 51 leading to the sewer or to any suitable exhaust point. The two ports 43 and 49 are respectively controlled by valve mem-' bers 52, 53, carried respectively by rods 54, 55 having vertical sliding movement in gland structures 56 carried by the valve casing. Both of the Valve rods are connected to a lever 57, rod 55 to one end of said lever and rod 54 to its middle portion, as shown in lFi 3, the opposite end of said lever being bi urcated and connected to a pin'58 in a collar 59 having sliding movement on a rod 60. Said rod is threaded at its upper and lower ends, its lower end being screwed into and secured by the locking nut 61 to a clevis 62 pivoted to the head 14. On said rod are two springs-63 one above and one below the collar 59, the pressure of said springs upon said collar seat.

being adjustable by the lock nuts 64. Obviously, collar 59 and the cotiperating springs 63 serve as a yielding connection between rod 60 and the lever 57.

W hen the motive fluid is compressed air relief is afforded from the chamber in the cylinder above the piston by a suitable vent, while if the motive fluid is steam the cap 19 preferably has an outlet port 65 to which is connected a pipe 66 communicat-' pressing member 4. The treadle movementbrings the pressing members fairly close together and may even produce sufficient pressing contact to hold the work therebetween. The final heavy pressure is produced by the motor piston.

The chamber in the motor cylinder above the piston is open to exhaust either through a vent port or byway of the pipe 66. When treadle 10 is in its upper position the valve devices are in the position shown in Fig. 3, valve 53 being'raised from its seat and valve 52 being closed upon its seat. Communication is therefore cut off between the motor cylinder and pressure chamber 35 and the motor cylinder is open to exhaust.

through the port 49. As the pressure effective in chamber 35 holds the v lve 52 to its, seat valve stem 54 forms a ulcrum for the lever 57. The first motion of treadle 10 therefore turns lever 57 about its middle point and closes valve 53. Further downward motion of treadle 10 compresses the lower spring 63, until finally the pressure of said spring becomes suflicient to overcome the pressure holding valve 52 to it's Consequently valve 52 is suddenly opened, allowing fluid pressure to flow from the source to the motor cylinder, whose piston is raised by the fluid pressure and therefore applies heavy pressure to the garment. Flow of fluid pressure is not permitted until the pressing members are in fairly close contact, so that the operator will have necessarily withdrawn his fingers from be-- will. not

tween the pressing members and have them crushed.

During the operation of the motor pis- 12a ton the pins 23 travel upwardly in the slot I 22, but not entirely to the upper end of emuel seat by the pressure in chamber 44 and therefore forms a fulcrum for the lever 57. The downward motion of head 14 therefore seats valve 52 and finally the pressure of the upper spring 63 becomes sufficient to overcome the pressure on valve 53, so that the lever 57 is turned still further and valve 53 opens. This allows the fluid pressure in the motor cylinder to flow to exhaust and the weight of the lower pressing member moves it downwardly to normal position.

W'hat we claim is:

1. In a press, a frame, a stationary pressing member carried thereby, a lower pressing member guided for movement vertically into pressing engagement with the stationary member, an operating shaft mounted vertically in the frame and operatively connected to said lower pressing member, a fluid cylinder and piston motor in alinement with said operating shaft and having connections therewith 'for directly operating the same, treadle mechanism for moving said lower pressing member into engagement with the stationary member, and means for controlling sa'id fluid cylinder and piston motor.

2. In a press, a frame, a stationary pressing member carried thereby, a lower pressing member guided for movement vertically into pressing engagement with the stationary member, an operating shaft mounted vertically in the frame and operatively connected to said lower pressing member, a fluid cylinder and piston motor in alinement with said operating shaft and having connections therewith for directly'operating the same, treadle mechanism for moving said lower pressing member into engagement with the stationary member, and a controller adapted for actuation by said treadle for causing said motor to operate after. the press is closed. v 3. In a press, a frame, astationary pressing member carried thereby, a lower pressing member guided for movement vertically into pressing engagement with the stationary member, a treadle pin mounted transversely in said frame and in substantially vertical alinement with said pressing member, an operating shaft mounted vertically in the frame and operatively connected to said lower pressing member, a motor cylinder arranged in said frame and connected to said treadle pin, a piston arranged in said cylinder and operatively connected to and in alinement with said shaft, a treadle mounted upon said treadle pin, connections between said treadle and said shaft for raising the same to close the press, and a controller for said motor.

4. In a press, a frame, a stationary pressing member carried thereby, a lower press: ing member guided for movement vertically into pressing engagement with the stationary member, a treadle pin mounted transversely in said frame and in substantially vertical. alinement with said pressing member, anoperatin shaft mounted vertically in the frame angl operatively connected 'to said lower pressing member, a motor cylinder arranged in said frame and connected to said treadle pin, a piston arranged in said cylinder and operatively connected to and in alinement with said shaft, a treadle mounted upon said treadle pin, a lever mounted upon said cylinder, connections between said lever and said operating shaft, connections between said lever and said treadle, and a controller for said motor.

5. In a press, a frame, a stationary press ing member carried thereby, a lower pressing member guided for movement vertically into pressing engagement with the stationary member, a treadle pin mounted trans versely in said frame and in substantially vertical alinement with said pressing member, an operating shaft mounted vertically in the frame and operatively connected to said lower pressing member, a motor cylinder arranged in said frame and connected to said treadle pin, a piston arranged in said cylinder and operatively connected to and in alinement with said shaft, a treadle mounted uponsaid treadle pin, a lever mounted upon said cylinder, connections between said lever and said operating shaft, connections between said lever and said treadle, and a controller for said motor actuated by said treadle.

In testimony whereof we aflix'our signatu es.

r CHARLES E. 'WAREAM.

GEORGE N. LINK.

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