US421324A - Machine - Google Patents

Description

"(NO Model.) 3 Sheets-Sheet 1.

W. SKAIPE.

RIVETING. MACHINE.

Patented Feb. 11, 1890.

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(No Model.) a sheets-#sheet 2.

W. SKAIFE.Y

1111131111111 MACHINE. 110.421,324. Patented Peb. 11,1890.

{No Model.)l W SKAIFE 3 Sheets-Sheet 3.

RIVETING MACHINE.

No. 421,324. Patented Feb. 1-1, 1890.

UNiTED STATES ATENT OFFICE.

VALTER SKAIFE, OF COMMERCIAL ROAD, COUNTY OF MIDDLESEX,

' ENGLAND.

RIVETlNe-MACHINE.

SPECIFICATION forming part of Letters Patent No. 421,324, dated February 11, 1890. Application iiled September 6, 1889. Serial No, 323,217. (No model.)

To all whom it may concern:

.Beit known that I, WALTER SKAIEE, a subject of the Queen of Great Britain and Ireland, residing atv Commercial Road, in the county of Middlesex, England, have invented certain new and useful Improvements in Riveting-Machines, of which the following is a speciiication. p

This invention has reference to a construction of riveting-machine suitable for riveting together plates to form vesselswsuch as tanksof various sizes.

To anoverhanging arm or beam carried by a standard is attached a die or riveting-tool I will call the stationary tool. Below this is a snap or riveting-tool I will call the movable tool. that works on a pin, pivot, or trunnions supported by a standard.

Below that end of the lever that carries the movable tool is a table or supportl for the work. This table, which may be carried by a frame that can be traversed relatively to lthe machine for the purpose of placing the work in position for the swaging or closing of successive rivets, is provided with suitable meanssuch as a lever--whereby it can be raised or lowered. The lever may be weighted to counterbalance the weight of the table and attached. parts.

For heavy work thetable may be operated by hydraulic pressure. 4

That arm of the riveting-lever which carries the movable tool is adapted to enter a tank being riveted.

The parts are constructed and arranged to admit of the top of the movable tool and the center of motion of the riveting-lever being in a common horizontal plane on the termination of the stroke of the lever, whereby a rivet is swaged or closed, so that the iinal pressure may be given practically in line with the axis of the rivet. To this end the part of the riveting-lever that carries the movable tool may advantageously be made separate from and adjustable in relation to the remainder. The adjustable part may be arranged to slide in or on the other part, the adjustment being effected by any suitable means, such as a screw and hand-wheel.

It is carried by a riveting-lever.

The stationary and movable tools may, to suit various kinds of work, be made removable froin the overhanging arm or beam and from the riveting-lever, respectively. Vith the construction described a tank to be riveted, when placed on the table, may be lowered for the insertion of a rivet and then be raised, thereby causing the lower of the two plates to be riveted together to form part of a tank to force the upper plate against the stationary die or anvil, so that both plates will be held close together before the riveting takes place. The formation of collars on the rivets between the plates, and consequently bad joints, is thus prevented when the rivets are swaged or closed.

The riveting-lever may be operated by steam, hydraulic or other iiuid pressure, or by mechanical means, such as cams. According to one arrangement a hydraulic cylinder is secured to the arm or beam carrying the stationary rivetingtool, and a suitably-arranged hand-lever is provided for operating the valve or valves for controlling the admission and exhaustion of water to and from the cylinder.

In the accompanying illustrative drawings, Figures l and 2 are side and front elevations,

respectively, of a riveting-machine constructed according to this invention. Fig. 3 is a vertical longitudinal section of part of the riveting-lever, and Fig. 4C is a front elevation thereof. Fig. 5 shows in elevationpart of the machine slightly modiiied. Fig. 6 is a vertical section showing a modified construction of riveting-lever with adjustable arm. Fig. rZis an elevation showing a modified form of rivetingtool. Fig. S is an elevation illustrating a modified method of mounting the riveting-lever,

Referring to Figs. l to 4,1 is the stationary tool carried by a bar 2, pivoted at 2n to an overhanging arm or beam 3, that is carried by' a standard 4.

5 is a stop with setscrew G, by means of which the bar 2 and stationary tool l may be held in position for riveting. rI *he stationary tool l may be directly connected to the arm 2; but it is advantageous to secure it to a pivoted bar, as shown, in order that it may IOO be moved laterally to enable a vessel-such as a tank-to be readily placed in position for riveting and afterward to be removed.

6 is the movable tool carried by one arm 7 of a riveting-lever that is journaled at 8 to the standard it, and upon the other arm 7 of which acts the plunger of a hydraulic press.

in the riveting-lever, as shown in Figs. 3 and 4. By loosening the nuts on the bolts 10 the arms 7 may be adjusted vertically by hand to any required height for the purpose hereinbefore mentioned, or the adjustment may be effected by a screw-threaded rod 12 and hand-wheel, as shown in Fig. (i. In this case, to prevent the rod 12 being strained or bent when the arm 7 is loosened from the remainder of the riveting-lever, it may work through a nut 13, arranged within a slot 14 in the arm 7, as shown.

The bar 2 and lever-arm 7 may, to suit some classes of work, be arranged to extend beyond the arm or beam 3, as shown in Fig. 5. The movable tooll 6 may in certain eases be slightly cranked, as shown in Fig. 7, in order to adapt it to act upon rivets that could not be acted upon Vby a straight tool, such as shown in Fig. 1.

11i is a table or support for the work. It is, in the example shown, supported by side plates or frames 15, that are carried by guiderods 16,upon which the said plates or frames can be caused to move vertically (to adjust the height of the table to suit the work to be done) by means of pinions 17, that gear wit-h racks 18` on the guide-rods These pinions are fixed upon a shaft 10, provided with a wor1nwheel 20, that can be operated from the front of the table by a worm 21,' shaft 22, and hand-wheel 23. The guide-rods 16 work in guides 24 and are carried by footlevers 25, the outer ends of which are shown connected by a foot-board 2G; or lever-arms 25, fixed upon a shaft 25b and operated by a hand-lever 25, (shown in dotted lines in Fig. 1,) may be used for raising the rods y16 and table 14.

27 is a weighted lever fulcrumed at 28 and connected by a link 29 with the arm 7 of the rivetingdever, so as to raise this arm when the cylinder of the hydraulic press is exhausting, and thus lower the movable tool 6 away from a rivet after the same has been swaged or closed.

The hydraulic press 9 may be of any suitable construction and be provided with valves operated by hand-lever 30 for controlling the admission and exhaustion of motive -fluid.

31 is a block that transmits power from the plunger 32 of the hydraulic press when this plunger moves outward to the arm 7n of the riveting-lever. This block Slis journaled to the plunger, as shown, so that it may always take a fair bearing on the arm 7 notwithstanding that this arm will be inclined during the riveting operation.

The operation of the machine is as follows: The plates to be riveted together to form a tank are placedv upon the table 14, as indicated in dotted lines in Fig. 1, the said table and the arm 7 of the riveting-lever being in their lowered positions. A rivet is then in.

serted from above, so as to be situated below the stationary tool 1, and the guide-rods 16 and table 14 are raised by the foot-levers 25, so as to cause the lower bent flange A of the one plate of the tank to force the upper plate B against the stationary tool 1, so that both plates will be held close together. The hydraulic press is then set in action to operate the riveting-lever and raise the movable tool 6, which then swages or closes the rivet. The guide-rods, with table and tank plates, are then lowered, the plates adjusted laterally for a fresh rivet, and the above-described operation repeated.

For enabling the riveting-machine to rivet flat plates of metal togethersuch, for ex ample, as a Strengtheningring to a plate that is to form the top of a tauk-the table 14 may be slotted or-so formed that when it is above the arm 7 of the riveting-lever such 'arm may work through it, or the table may be formed with a hole, through which the movable riveting-tool 6 can Work. This construction will be readily understood without the aid of drawings,

Instead of making the arm 7 adjustable relatively to the other part of the rivetingA lever, for the purpose hereinbefore mentioned, the riveting-lever may, as shown in Fig. 8, be constructed with trunnions 33, carried by an adjustable block Sefarranged to Work in a slot inV the lever, so that the position of the fulcrumfof' the lever can be adjusted as required by means of screws 35; or the lever may be formed with a series of holes, as in dicated in dotted lines in Fig. 1, in one or other of which, according to the height of the top of the movable tool 6,the fulcruui-pin of the lever can` be inserted.. When the eenter or fulcrum of the rivetingdever is made adjustable, the means employed for operating it should be capable of correspondingadjust mentA 1. In a riveting-1nachine, the combination of a stationary die, a movable die, a table or support for the work, and means for readily moving said table or support toward and from said stationary die, substantially as herein described, for the purpose set forth.

2. ln a rivetingnnachine, the combination of a stationary die, a movable die, a riveting-- lever for actuating said movable die, and

IOO

means for operating the lever, said rivetinglever being so arranged that its center of motion and the free end of the movable tool are in a common plane at right angles to the axis of the rivet during the iinal swaging or closing of such rivet, substantially as herein described.

3. In a riveting-machine, the combination of a stationary die, a movable die, a rivetinglever, the center of motion of which can be adjusted relatively to the free end of the movable die, and means for operating said lever, substantially as herein described, for the purpose set forth. i

et. In a riveting-machine, the combination of a stationary die, a riveting-lever having one of its arms adjustable relatively to the remainder of the lever, a movable tool carried by said adjustable arm, and means for operating said riveting-lever, substantially as herein described, for the purpose specified.

5. In a riveting-machine, the combination of a stationary die, a movable die, arivetinglever, and means for operating the same, a movable frame or support, a Work-table adjustably mounted on said frame or support, and means for operating said frame or support to cause said Work-table to move toward and from said stationary die, substantially as herein described, for the purpose set forth.

-6. In a riveting-machine, the combination of a stationary die, a movable die, movable rods provided with. toothed racks, a Worktable adj ustably mounted on said rods and provided with toothed wheels to engage said racks and 'With means for rotating said toothed Wheels, and means for moving said rods endwise and thereby causing said Worktable to move toward and from said stationary die, substantially as herein described, for the purpose set forth.

'7. In a riveting-machine, the combination of a stationary die carriedv bya movable bar, an arm or beam carried by a standard and to which said movable bar is pivoted, a rivetinglever fulcrumed to said standard, a movable riveting-tool carried by said lever, and a hydraulic press, the plunger of Which is arranged to actuate said riveting-lever, substantially as herein described, for the purpose set forth.

8. In a riveting-machine, the combination, with a riveting-lever, of a hydraulic press and a block arranged to act against one arm of said lever and jointed to the plunger` of said press, substantially as herein described, for the purpose set forthA In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

Notary/s Clerks, both of i9 Change Alley,

London,

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