US578359A - Rivet-heading machine - Google Patents

Description

(No Model.) 2 Sheets-Sheet .1.

P. PHILIPS. RIVET HEADING MACHINE.

No. 578,359. v Patented Mar. 9, 1897.

.Witnesses. Inventor.

' 4 Ame;

2 Sheets-Sheet 2.

(No Model.) I

F. PHILIPS.

RIVB'I' HEADING MACHINE.

No. 578,359. Patented Mar. 9, 1897.

tnesses.-

Attorney.

PnoTuumm, wAsHmm'om a. c.

UNITED STATES PATENT ()FFICE.

FERDINAND PHILIPS, OF PHILADELPHIA, PENNSYLVANIA.

RlVET-HEADING MACHINE.

SPECIFICATION forming part of Letters Patent No. 578,359, dated March 9,1897. Application filed April 29, 1896. Serial No. 589 ,549. (No model.

To all whom it may concern.-

Be it known that I, FERDINAND PHILIPS, a

subject of the German Emperor, residing in the city and county of Philadelphia, in the State of Pennsylvania, have invented a new and useful Improvement in Rivet-Heading Machines, 'of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part of the specification.

My invention relates to rivet-heading inachines, and has for its object to improve the construction of such machines, particularly with reference to the operation and adjustment of the knock-out pin or rod and to the adjustment of the die in which the blanks tion-line 2 2 of Fig. 2, and Fig. 4 is a crosssection on the line 3 3 of Fig. 2.

A is the frame of the machine, A being a bracket attached thereto for supporting the shaft B; A the portion of the frame upon which the lower die is supported, a being an opening in said portion of said frame adapted to come beneath the die. A A are projections of the frame having their opposed faces a outwardly inclined, as shown in Fig. 3.

B is the driving-shaft, to which is attached the driving-pulley B and a pinion B which engages a spur-wheel O, the hub C of which is, as shown, clamped between fianged rings 0 G by means of bolts 0 the rings 0 being secured so as to turn with the shaft D.

D is a crank in shaft D, to which is connected the connecting-rod E, having, preferably, trunnion-like pins E forged at its head, said pins being secured to the boxF F and to the reciprocating head G by bolts F The headG is guided by guides 11 H upon the frame and is formed with an opening G in its face, upon the bottom G of which rests the block G having a threaded perforation G G is a perforation through the lower part of head G, formed in line with the perforation in block G G is a binding-screw in block G and G a similar screw for die J in the base of head G.

I is an adjusting-screw working in block G, the lower end of which abuts against the heading-die J, J being the operative head of said die.

K is a plate lying between the frame and head G.

L is a'plate secured above and in front of the portion A of the frame by bolts Z Z.

M is a block resting on A and against the plate L. It is provided with a perforation M, in which is placed a sleeve N, the head N of which rests on base A or a part supported thereby. The sides m m of the block M are formed in converging planes, the angle of convergence being preferably the same as the angle of divergence of the walls a a between which the block M lies.

U U are wedges formed to fit against the oppositely-lying faces an and a and provided with bolt extensions U, extending through openings in the plate L and by which the wedges can be drawn up by meansof nuts on the outside of the plate. It is obvious, of course, that by a manipulation of the wedges U U the block M can be shifted from side to side and rigidly securely held in any desired position.

O is the lower or rivet-holding die of the machine. It is formed with a longitudinal perforation O, in the top of which the rivetblank is placed, and the die, as shown, fits into the sleeve N and rests upon the plate N below the sleeve. P is a sleeve fitting and resting in the perforations a of the frame-plate A and provided with an exterior thread, as indicated at P, upon which thread screws the adjustingnut Q, having a perforation Q through its center, and slots, as Q extending through its sides to its central cavity.

W' is the knock-out pin or rod, the upper end of which extends through the perforation of the headed sleeve N and lies in the perforation O of the die 0. The height to which this pin normally extends in the die 0 is determined by the length of the rivet-blank to be headed, as in normal position it serves -of the rivet-blank rests.

, which screws a screw S as a stop or a rest upon which the lower end Its other function is to serve as a knock-out pin to force the rivet out of the die after it has been headed,

- and it is a prime object of my invention to provide mechanism which, irrespective of the adjustment by which a varying normal position is given to the pin, will always raise it to the same height when it performs its function as a knock-out pin.

It is found convenient to make the pin W only of sufficient length to perform its necessary functions and to provide it with what is in effect an extension, (represented by the rod marked R in the drawings.) The upper end of this rod extends into the sleeve P and is provided with a shoulder R, which rests upon the head of the nut Q, while an extension R of the rod extends through the nut.

It will readily be seen that by the construction shown the rod R and the pin W, which it supports, can be adjusted to any desired normal height by simply turning the nut Q, and. I will here state that my reason for forming the slots Q in the nut is to permit the free escape of the water which is kept intermittently running through the die 0, from which it passes to the sleeve P and thence to the nut Q, from which it escapes through the slots Q I find this an advantageous construction, because it enables me to keep the water practically out of contact with the threaded nut P of the sleeve P, thus avoiding the rusting of this portion, which would interfere with the rod adjustment of the nut.

S is a cross-bar supported by rods T 'I,which rods in turn are secured to the rods G G eX- tending out from the lower endof the head G. The function of this cross-bar is to come in contact at proper intervals with the lower end B of the rod R, pushing it and the pin W upward to thrust the rivet out of die 0, and it will be seen that by the construction illustrated the knock-out pin will always be thrust upward to the same height, irrespective as to whether in normal adjustment it is raised or lowered. To obtain a nice adjustment, it is, however, desirable that the point to which the pin shall be forced upward should be adj ustable, and this I secure by forming a circular threaded perforation S in the cross-bar S, into Obviously by turning this screw it may be raised or lowered, and thus an adj ustment made as to the height to which the knock-out pin will be raised. In order to prevent breakage of the machinery, I prefer to have neither the bar S nor the screw S strike directly upon the rod R, but to construct them with a perforation, as S preferably of rectangular form and provided on opposite sides with shoulders S upon which shoulders I rest a break-bar S In case of unusual pressure this break-bar on coming in contact with the rod R will break in the middle and fall through the rectangular perforation S permitting also the end B of the rod to pass through the perforation and thus avoiding breakage in the machine.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a rivet-headin g machine the combination with a die as 0 having a perforation O in which the rivet rests, of a rod as W longitudinally movable in perforation 0, means as nut Q adjustable to and from die O'for supporting rod 7, a reciprocating rod-raiser or cross-bar S moving through a determined path unaffected by the adjustment of nut Q and an adjustable stop as S secured to bar S and through which it acts upon the rod.

2. In a rivet-heading machine the combination with a die as 0 having a perforation O in which the rivet rests, of an externallythreaded hollow sleeve P secured in line with the die, an adjusting-nut Q adapted to screw on said sleeve P and having slots Q formed in it to permit the escape of water, and a knock -out rod as R passing through and adapted to be supported by the nut as specified.

3. In arivet-headin g machine having a perforated die as O and a knock-out rod movable therein, the combination with a reciprocating bar as S adapted to act upon and raise the pin at proper intervals and having an opening in its face, of a break-bar S supported over said opening at its ends only and by means of which the knock-out rod is raised.

4. In a rivet-heading machine having a perforated die as O and a knock-out rod movable therein, the combination with a reciprocating bar as S adapted to act upon and raise the pin at proper intervals, and having a circular threaded opening in its face, of a screw S having an opening S formed through it and a break-bar S supported at its ends only across said opening.

FERDINAND PHILIPS.

Vitnesses:

CHARLES F. ZIEGLER, D. STEWART.

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