US1172883A - Ring-core-revolving machine. - Google Patents

Description

J. R. GAMMETER.

RING CORE REVOLVING MACHINE.

APPLICATION FILED SEPT- B, 1914.

1,172,883. Patented Feb. 22, 1916.

- mm mum 8 21 17 Z2 Z0 JOHN R. GAMMETER, OF AKRON, OHIO, ASSIGNOR TO THE B. F. GOODRICH 013 NEW YORK, N. Y., A CORPORATION OF NEW YORK.

COMPANY,

RING-CORE-REVOLVING MACHINE.

Specification of Letters Patent.

Patented Feb. 22, 1916.

Application filed September 8, 1914. Serial No. 860,644.

such as scraping. brushing. etc., and its object isto avoid the time and labor involved in mountlng such article on and demountingit from a chuck or similar gripping device. i

handling. of the heavy cast-1ron cores used in molding pneumatic tire casings. which cores require to be scraped and brushed after each, molding operation to remove the accumulations of rubber. adhering thereto, and are thereafter usually treated with a thin coating of rubber cement over portions of their surfaces to promote the adhesion of the innermost canvas ply of the tire carcass.

Of the accompanying drawings. Figure 1 represents a side elevation of a core-revolving machine constructed according to my invention, this view indicating cores of two diiferent sizes in outline. Fig. 2 represents a top plan view. Fig. 3 represents an end View from the plane 33 of Fig. 1. Fig. 4: represents a horizontal section of the retaining latch and adiacent parts for the upper guide-roller. Fig. 5 represents an elevation of the brake and its related roller,

partly in section.

The frame of the machine comprises an upright 10 and a horizontal base 11 pr0 vided with bearing standards for a pair of core-supporting rolls '12, 13. having V The roll 12 is" The invention especially applies to the erally under a fixed pin 22 in order to hold the core-rest in its raised position. From the link 19 depends a pivoted bolt 23 be-. tween whose head and the under side of the brake-lever 17 is interposed a springQ l, so that when the treadle 20 is depressed in order to raise the core-rest 18, the brakeshoe 1(' will be yieldingly applied to the roller 13. is an inclined run way 'or ramp leading from the floor 26 to a point adjacent to the topsideof the roller 13, whereby the cores may readily be elevated into operative position in the machine.

27 is an uppeigu'i'de-rolleif Having a V- shaped grooved periphery for giving a third point of support to the cores, said roller being loosely journaled on a pivoted arm 28 so as to be raised and lowered for cores of different diameters. Thev circles 29 and 29 in Fig. 1 indicate the outlines of two cores of di'iierent sizes, and the positions of the upper roller 27 for these two sizes are shown in full and dotted lines respectively. Said roll and its arm are counter-balanced by a weight 30 attached to the outer end of arm 28 by a cord 31 running, over a pullev 32. The arm may be fixed at any desii'ed height by means of a latch 33 engaging the teeth of a ratchet bar 34e pivoted at ually retracted against the pressure of a spring 36 by means of a finger-lever 3'7.

The operation is as follows. The corerest 18 being held in its raised position by catching the trcadle 20 under pin 22, and

the top roll 27 being somewhat retracted from its operative position, the workman rolls a core up the inclined run-way 25 and over the front roller 13 until it is supported by the core-rest 18. Treadle 20 is then released frani its retaining pin and the rest 18 lowered until the core is supported on the driving roller 12. This operation also releases the brakeshoelfi, and at the same time the top roli 27 is lowered into operative position in order to maintain the core upright while being revolved. The workman th'n performs the desired core-cleaning operations with the use of scraping and brushing tools while the core is being; turned rapidly, and after it is cleaned he generally applies thin coats of rubber cement to the side faces of the core at the places where the top roller 27 is raised and the core is stopped tire beads are to be applied, after which the by elevating it with the treadle 20 and the core-rest 18, at the'same time applying the brake shoe 16 to the front roller, whereupon the'core is rolled down the run-way and the operation thereby completed.

It is possible to apply the principle of .my invention in various ways and I therefore do not wish to be confined to the details of construction herein set forth.

I claim:

1. In a machine of the character described, the combination of. a set of rollers,

including. a driving roller, for supporting the ring core or similar article byits periphery in a vertical position, .andmeans for raising and lowering the core with respect to the lower rollers of said set.

2. In a machine ofthe character described, the combination "of a set of rollers,

including a, driving roller, for supporting the ring core orsimilar article by its periphcry in a vertical position, a core-rest for engaging the lower periphery of said core to raise and lower the same with respect to the lower rollers of said set, and a treadle for operating said rest. a

' 3. In a machine of the character deinclud-ing 'a driving roller, for supporting the ring core or sim1la r a rticle by its periphery in a vertical position, and an inclined run-way for guiding the core -to and from the level of the lower rollers of said' set.

4. In a machine of the character de-i' scribed, the combination of a pair of lowergrooved rollers 'for supporting the lowera periphery of the core or similar article, 'a' top support 'for maintaining said core in".

an upright position, and an inclined runway terminating at its upper end adiacent to the top side of '0ne of the lower rollers.

6. In a machine of the character described, the combination of a set of rollers,

scribed, the combination of a pair of lowergrooved rollers fo supporting the core or similar article, one of said rollers being a driver and the other loosely journaled, a core rest for raising and lowering the core, and a brake operating comomtly with said core-rest for stopping the loosely journaled roller-when the rest is elevated and releas-' ing it when said rest is depressed.

. 7.111 a mach'ne of the character de-.

scribed, the combination of a pair of lower rollers for supporting the core or similar article in an upright position, one of said rollers bemg a driver and the other loosely journaled, a core-rest mounted for vertical movement between said rollers, a treadle for operating said rest, a brake for the loose roller operated bv said treadle, and, an inclined run-way terminating. at its upper end adjacent to the top side ofthe loose roller.

8. In a machine of the character described, the combination of a pair of lower grooved rollers, including a driving roller, an upper grooved roller, a. pivoted arm carrying said upper roller, a pivoted ratchet bar, and a latch on said arm engaging the teethfof said; ratchet bar forholding the upper roller at different heights.

9. In .a machine of the character described the combination of a pair of lower grooved rollers, including .a driving roller,

an upperjgi'ooved roller, 'a pivoted arm supporting said'upper roller, a counter-weight for sa'idiarmand upperroller, and means for' fixing said am in different angular posi-. I,

tions.- Y I lOl -In a machine of' the-character described, the combination of a pair of lower grooved rollers, including a driving roller,

means located between 'said rollers for raising and lowering the core or similar article,

an upper grooved .roller' adapted toberaised.

and lowered, and" means for fixing said upper roller at different heights.

In testimony whereof I have hereunto set my hand in the-presence of two subscribing witnesses, this 3 day-of September, 1914.

JOHN R. GAMMETER.

Witnesses: a

' WALTER K. Means,

ILLA N. KIRN.

' 7 Copies of this patent may be obtained for five cents each, byaddressing the-Commissioner of Ifatenti.

Washington, I). G. v

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