Norvel L Smith

US Patent:

45898340, May 20, 1986

Filed:

Aug 8, 1985

Appl. No.:

6/763591

Inventors:

Seizaburo Inoue - Nashville TN
Norvel L. Smith - Smyrna TN

Assignee:

Bridgestone Corporation - Nashville
Bridgestone (U.S.A.), Inc. - Nashville TN

International Classification:

B29C 1500

US Classification:

425369

Abstract:

Device for striating laterally or diagonally an unvulcanized rubber strip at equal intervals to create air escapes comprises a pleat roll having a plurality of rollers, each of which presses the rubber strip to the pleat roll independently and which have gaps between roller of the first pressing member. A second pressing member includes a plurality of roller, each of which presses the rubber strip to the pleat roll independently and which have the widths greater than the gaps between rollers of the first pressing and the gaps between rollers of the second pressing member narrower than the widths of the rollers of the first pressing member. The second pressing member is positioned to connect the discontinuous striae of the rubber strip in the lateral or diagonal direction, which are striatec with the first pressing member and the ridges of the roll. A transfer device is positioned interpose to the rubber strip between the pleat roll and the first and second members.

US Patent:

46524100, Mar 24, 1987

Filed:

Aug 8, 1985

Appl. No.:

6/763598

Inventors:

Seizaburo Inoue - Nashville TN
Norvel L. Smith - Smyrna TN

Assignee:

Bridgestone Corporation
Bridgestone Tire Manufacturing (U.S.A.), Inc.

International Classification:

B29C 4708

US Classification:

264 39

Abstract:

A method of exchanging a preheated die holder in a die head portion with an existing die holder by moving the preheated die holder into alignment with a recess formed by clamp members and inserting the preheated die holder horizontally. The previously used die holder can be ejected vertically onto a car used to transport the preheated die holder.