US1152212A - Capping-machine. - Google Patents

Description

l. C. PEPPERS.

CAPPING MACHINE.

APPLICATION FILED JULY 20.1914.

Patented Aug. 31, 1915.

2 SHEETS-SHEET-l Jerry C. fieppns Q )irr'omvns [TA/E8858 J. C. PEPPERS.

. CAPPING MACHINE.

APPLICATION FILED JULY 20, m4.

Patented Aug. 31, 1915.

2 SHEETS-SHEET 2.

A TTOR/VEYS JERRY COATTS PEPPERS, 0F BEAUMONT, TEXAS.

' CAPPING-MACHINE.

Specification of Letters Patent.

Application filed July 20, 1914. SerialNo. 351,935.

cans, and arranged to be capable of use with cans of varying size.

In the drawings :Figure 1 is a perspective view of the improved machine, Fig. 2 is a longitudinal vertical section, Fig. 3 is a transverse section of the upright and slide plate taken substantially on the line 33 of Fig. 2, looking downward and with the base omitted, and Figs. 4 and 5 are sectional views showing the plunger in different posi tions. v g

The presentembodiment of the invention comprises a base plate 1, having near one end an upright or standard 2, which is provided with a vertical slot 3, the slot being at approximately the center of the plate and extending from near the top to near the bottom of the standard. A slide plate 4: is arranged on the front face of the standard .or upright over the slot, and bolts 5 are passed through the slot and through registering openings in the plate, and each bolt engages a nut 8. n

The standard or upright is provided on its rear face with a pair of parallel laterally spaced ribs 7, the said ribs being at opposite sides of the slot 3, and the ribs are spaced apart a sufficient distance to receive the nuts 8 of the bolts, and to engage opposite faces of the nuts to prevent rotation of the nuts with respect to the bolts.

- The plate 4 is provided with a laterally extending arm 9, and the arm is provided near its outer end with a rectangular opening 10, and with bearings 11 spaced apart vertically from each other and in alinement and at approximately the center of the onening 10. At its inner end the plate land the arm 9 have a pair of upstanding lugs 12, and a lever 13 has one end pivoted between the lugs as indicated at 14:. The lever extends forwardly beyond the outer end of the arm 9, and a plunger rod 15 is mounted to slide in the bearings 11. .The upper end of the plunger rod is forked and the arms 16 of the fork engage opposite sides of the lever- 13, and are pivoted thereto as indicated at 17.

' Patented Augn31l, Ea.

A-coil spring 18 encircles the plunger rod within the opening 10, the spring bearing at its lower end against the upper end of the lower bearing 11 and at its upper end against a pm 19, arranged transversely of the plunger rod. The spring acts normally to press the plunger rod upward, and to hold the lever 13 lifted.

The plate 1 is provided near its frontend and at approximately the center thereof with a transverse opening 20, the said opening being below the lever 13. A'bar 21 ismounted to slide in the opening and the upper end of the bar 1s arranged between the lower-'- ends of a pair of laterally spaced bars 22. The bar 21 1s provided with a plurality of openings 23, near its upper end andone of the said openings is adapted to register with openings in the bars 22 to receive a bolt 24 or the like, which is. passed through the registering openings to connect the bars together. The bars 22 are provided at their upper ends with series of registering openings 25, and the lever 13 is provided with an opening intermediate its ends and adapted to register with a pair of openings in the bars 22 to receive a bolt 26, for pivotally connecting the bars to the lover: The lowerend' of the bar 21 engages an opening 27 near the free end of a treadle or foot plate 28, which is pivoted as indicated at 29 at the opposite end from the bar 21 in the notch 30 in the upper end of an arm 31, which extends upwardly from the base plate 32.

The. base plate 32 may be arranged upon the floor beneath the table or bench which supports the plate 1, and offset forwardly with respect to the plate, so that the operator may have access to the treadle or foot plate 28. The lower end of the bar 21 is pivoted in the opening 27', by means of a olt 33, and below the bolt the bar is reduced and rounded as shown at 34:. The

is provided for insuring that .the can will be properly positioned With respect to the plunger 38 on the lower end of the plunger rod 15'. The guide or gage consists of two bars 39 and 39, arranged at a right angle with respectto each other and with the end of one fitting against theinner side edge of'the other, and the bars are held in place by pins 40. The pins 40 are passed through openings in the bars and into openings inthe upper face of the plate, and the barsare so arranged that when the can 37 is placed in contact with the two bars the opening 41 in the top thereof will be directly below the plunger 38. The plunger is circular in shape, and a plate spring 42 is arranged transversely of the under face thereof, the spring being secured to the "plungerv by means of a set screw 43. The set screw 43 passes through the center of the spring and engages a threaded opening in the plunger. The spring is arc-shaped or curved longitudinally as shown, and is arranged with its convex face toward the plunger. .The caps which are designed to close the cans each consists of a circular body-44 and a marginal angular integral rib 45, and each rib is provided with a radial flange 46. The spring 42 is an expansion spring and is of greaterlength than the diameter of the plunger.

When arched however, the free ends of the spring are flush with the peripheral surface of the plunger as shown in Fig. 4. 7 Hencewhen the ends are pushed outwardly to cause the spring to take an approximately plane form, the ends of the spring will extend beyond the periphery of the plunger.

The operation of the -device is as follows:The cans to be capped are placed on the table 1 in position against the gages or guides 393 9. The cap is inserted in the opening 41, and the lever '13 is depressed by means of the treadle '28. The can is so held by the guides or gages that when the lever is depressed as above mentioned, the ends of the spring 42 will engage opposite points of the cover, while the plunger will engage just within the rib 45 as shown in Fig. 4.

A further depression of the lever 13 will force theplunger 38 into the cap or cover, and as the plunger moves into the cap or cover the spring 42 will be straightened as shown in Fig. 5, and a portion of the maing in the top of the can, thus locking the terial of the cap or cover will be pressed outwardly beneath the lower endof the opencap or cover in the opening. The bars 22 are of such length and so arranged with respect to the lever 13 that their lower ends will engage the plate 1 at each side of the opening 20 when the-cap is properly placed in the can, that is, when the parts are in the position of Fig. 5. Bychanging the relative position of the bars 22 and the lever 13 the device may be adjusted to cans of differopenings as may be desired, and the slide plate 4 maybe adjusted on the upright 2 so that the devlce is adjustable for cans of any size. 1

It is obvious that instead .of a single sprlng 42 two springs might be used arranged at right angles to each other, and the cap placed with springs of this character 7 would be more firmly held, since there would be four inserts made by the ends of the sprmgs.

. The improved capping machine is of simple construction'and easily operated, and i is very easily adjusted to suit'the can being operated upon. Inaddition to placing the caps or covers they are securely lockedin position, the expansion spring 42 positively locking'the covers in place. It is obvious that any other desired means might be used for operating the plunger. By making the plunger 38 removable and having springs of different size the device can be adjusted for caps of different size.

I claim In a capping machine, a plunger adapted to fit within the cap for forcing the cap into place in the can, and anarched expansion spring onthe under face of the plunger and of greater length than the diameter of the plunger when straightened and arranged with its convex face upwardly, and adapted to be straightened when the plunger forces the cap into place in the can to lock the cap

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