US1667831A - Press compensator - Google Patents

Description

'May l, 192s. 1,ss7,s31

B. J. YANCHENKO PRESS COMPENSATOR Filed Feb. 1 2

INVENTOR Ban! anc/unko y. W TTORQIEYS Patented May 1, 1928.

UNITED STATES PATENT OFFICE.

BASIL J. YANCHENKO, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE PROSPERITY COMPANY, INC., 01: SYRACUSE NEW YORK, A CORPORATION 01' N EW YORK.

PRESS COMPENSATOR.

Application filed February 6, 1925. Serial No. 7,240.

This invention relates to pressing machines as for example garment presses and ironing machines and more particularly relates to improvements in instrumentalities for mounting a press head on a press lever and which improvements I refer to as a press compensator.

Pressing machines now in general use usually employ toggle or other suitable operating mechanism. for closing the press'head or ironing jaw. The toggle necessarily has combined therewith an adjustment means for varying the pressure between the jaws by regulating the clearance between the pressing jaws so that the machine may be made to take thick heavy garments at one time, or thin lightweight garments at another time. This adjustment means frequently takes the form of a hand-wheel screw, or possibly acam device, or other means for finely regulating the length of the toggle within desired limits so as to cause the head to close with greater pressure against the buck at one time than at another which is to say that a hand-wheel screw adjustment is employed to vary the distance between the pressing faces of the jaw members.

An object of this invention is to do away with such adjustment means as a hand-wheel screw so frequently employed on the toggle and to substitute an inexpensive compensator at the point where the head and press lever are joined together. Putting my purposes another way, it is understood how a spring compensator must, in any event be used to obtain yielding pressure, and I therefore use an improved compens'atorfor both purposes, and others as Wlll be seen.

Furthermore, an object is to produce an improved combination press compensator and oscillating or wobbling head mounting means whereby the head is permitted to move relatively to the press lever to which it is anchored. In fact my improved combination compensator accomplishes three purposes, namel pressure adjustment regulation; yielda le pressure; and anchorage means to secure the head to the lever with relative oscillating movement.

Having the above objects and others in View, reference is now made to Figure 1 of the accompanying drawing which illustrates a fragmentary side view of a closed press, the head of which is anchored to a press lever through the improved means comprising my invention. A part of Figure l is illustrated as a section taken on the line 1--1 of Figure 2 to show a coil spring-plunger guide assembly which attaches the head to the press lever.

Figure 2 shows a fragmentary plan view of the improved mounting means.

While certain changes may be made in the structure, there is shown, for the purpose of explanation, a fragment of a press frame 4 on which a press lever 5 is pivoted at 6. The press lever 5 is broken away at the rear, but it is understood to those conversant with the art how the rear end of the press lever connects with any suitable actuating mechanism as for example a toggle which may or usually embodies a screw device to adjust a head 7 to close with the desired pressure upon the buck 8.

The press head jaw 7 is attached to the press lever 5 through the agency of anchor bolts 10, the lower ends of which are screwed permanently into the cast iron head 7. The upper end of the anchor bolts 10 pass freely through a web 11 which is integrally formed with the press lever 5. The web 11 is made with holes through which the anchor bolt 10 passes with relative freedom so that the said bolts '10 may move in function within guide holes 12 formed in said web 11. The press lever 5 is preferably made with cylindrical guide lugs 13 for the reception of each anchor bolt 10. The guide lug 13 projects from the side of the press lever 5 and 1s made with a cylindrical bore 14 having its axis vertically coincident with the anchor bolt 10.

The upper end of the anchor bolt 10 is fitted with a loose fitting piston-like plunger or sleeve 16 held thereon by a nut 17 which forces the plunger 16 down against a. compression spring 18 confined on the anchor bolt 10 between the web 11 and plunger 16. The desired compression is imparted to the spring 18 by proper adjustment of the nut 17 and the plunger16 slides freely up and down in the guide lug 13, and the plunger 16 fits comparatively loose as aforesaid in the bore 14 in order that a more or less limited universal oscillating or wobbling motion be permitted to occur between the press lever 5 and the head jaw 7. Any suitable number of supporting anchor bolt 10 assemblages are employed on a pressing machine for attaching the head to the pre: 5 lever. The springs 18 afford sufficient resistance as to mount the press head 7 in substantial rigid relation on the press lever 511, yet at the same time permit a limited relative motion to occur as between the head and press lever. The several springs 18 with the anchor bolts 10 serve to attach the head 7 to the lQVGl'.5 in order that said head he lifted by the lever, but these parts are not employed for transmitting force from the lever 5 into the head 7, for I have employed an adjustable leaf spring for that purpose as will now be described.

A particular improvement in my invention relates to an additional spring 20, which to good advantage may take the form of a leaf spring, which is interposed between the press head and the press lever for the purpose of transmitting force directly from the lever to the head as hercinbefore suggested. This leaf spring 20 has its lower ends bearing directly against the upper-surface of the head 7 and the central part of the spring may be bowed concavely or socketcd in respect to a ressure regulating set screw 21 carried in t 1e web 11 and locked by a nut 22 against unscrewing. The set screw 21 is screwed downwardly against the leaf spring 20 until considerable compression is accumulated in this spring which serves to draw the anchor bolts 10 downwardly through the web 11 thereby compressing the coil springs 18 which are in themselves regulated as to compression by the plunger .16 and nut 17. One leaf spring 20 is sufficient to employ at each end of the press head 7 and the construction is inexpensive in this respect.

Assuming that very thick heavy garments or other work is to be pressed between the pressing jaws 7 and 8, it follows that the screw 21 should be loosened or backcd slightly away from the leaf spring 20 with the result that the several coil springs 18 serve to draw the head 7 upwardly toward and in relation to the lever 5, the result of which is to provide more pressing clearance between the meeting faces and the jaws 7 and 8 because the head 7 is lifting slightly from the buck 8. Assuming now that thin lightweight work is intended to be pressed, in such case it is necessary to turn the set screw 21 downwardly against the leaf spring 20 thereby moving the head 7 further away from the press lever 5-11, the result of which is to decrease the clearance space between the working faces of the pressing jaws 7 and 8.

It cfttimes occurs that garment of irregular, uneven character must be pressed in the machine. As for example, seams and several thickness of hems or edges of heavy garments frequently cause side strain on the pressing head and so it is desirable to compense for this by a wobbling oscillatory relatively movable anchorage means installed between the head 7 and lever 5, and the mounting means described in the foregoing specification fulfills these requirements in every respect inasmuch as the leaf spring 20 itself may pivot about the point of the set screw 21 to permit the head 7 to adjust itself by longitudinal rocking motion relatively to the press lever 5. The coil springs 18 always serve to return the press head 7 to normal horizontal position to insure that its pressing face may approach the face of the buck '8 in parallelism when work of unlform thickness is being pressed or ironed.

It, is to be noted that the leaf spring 20, one at each end of the buck, is the pressure transmitting means by which force of the lever 5 is spent through the head onto the buck, and that the spring and anchor bolt assembly 10-18 is the means by which the buck is withdrawn from the head.

The foregoing improven'ients render unnecessalytoggle adjustment means and enables a less expensive construction to be introduced.

\Vhat I claim is:

1. A pressing machine comprising in combination, press jaws, a press lever attached to one of the jaws to open and close the machine, yielding means interposed between the jaw and lever by which force is transmitted from the lever to the jaw, and yielding means carried with the lever and jaw to secure the jaw and lever together.

2. A pressing machine comprising in combination, press jaws, a press lever, spring means interposed between the jaw and lever by which force is transmitted from the lever to the jaw, spring means carried with the lever and jaw to secure the head and lever together, and adjustment means employed to regulate the compression of each spring means.

3. A pressing machine comprising in combination, press jaws, a press lever, a leaf spring interposed between the jaw and lever by which force is transmitted from the lever to the jaw, a coil spring carried on the lever, and means cooperating with the coil spring and the jaw and serving to secure the jaw and lever together.

4. A garment press comprising in combination, a press lever, a head jaw, spring means interposed between the lever and head jaw, a screw carried by the lever bearing on the spring which permits the head jaw and spring to swivel about the screw and relatively to the lever, and means for holding the lever and head jaw together against the force of the spring means.

5. A garment press comprising in combination, a press lever, a head jaw carried thereby, a buck jaw with which the head jaw coacts, spring means interposed between the lever and head jaw, an adjusting screw carried by the lever bearing on the spring means which permits the head jaw and spring means to swivel about the screw end relatively to the lever, anchor bolts fixed to the head jaw and guided in the lever, coil springs carried on the bolts and seated against the lever and bearing on the bolt head serving. to hold the head jaw lirmly against the aforesaid spring means, and adjustment means for regulating the compression of the coil springs.

6. A pressing machine comprising in combination, press jaws, lever means by which one jaw is moved in relation to the other, a plate spring interposed between the lever and movable jaw by which yieldable closing pressure is transmitted from the lever to the movable jaw, lifting springs, bolts extending through the lifting springs and fixed to the one jaw and guided for movement in the lever, adjustable means mounted on the bolts to compress the springs on the bolts against the lever to secure the jaw to the lever.

, 7. A pressing machine comprising in comthe lever and opening jaw for transmitting yieldable pressure from the lever to the jaw and which allows the jaw to rock relatively to the lever, an adjustable device cooperating with the yielding means to move the jaw slightly away from the lever to increase the co-acting closing pressure, and means for securing the jaw to the lever enabling the lever to open the press.

8. A pressing machine comprising in combination, a co-a'cting pressing head and buck, a lever to operate the head, a leaf spring interposed between the lever and the head by which the lever force is yieldingly transmitted to the head, an adjustment means bearing on the leaf spring adapted to move the head in relation to the lever to regulate the pressing machine to thick or thin work, and means attaching the head to the lever so the lever may lift the head.

In testimony whereof I affix my signature.

' BASIL J. YANCHENKO.

Images