GB524019A - Improvements in or relating to the manufacture of pneumatic tyres - Google Patents

Improvements in or relating to the manufacture of pneumatic tyres

Info

Publication number
GB524019A
GB524019A GB3740838A GB3740838A GB524019A GB 524019 A GB524019 A GB 524019A GB 3740838 A GB3740838 A GB 3740838A GB 3740838 A GB3740838 A GB 3740838A GB 524019 A GB524019 A GB 524019A
Authority
GB
United Kingdom
Prior art keywords
platen
rod
links
pair
platform
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3740838A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB3740838A priority Critical patent/GB524019A/en
Publication of GB524019A publication Critical patent/GB524019A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/34—Building tyres by jointly covering two bead-rings, located parallel to each other at a distance apart, with fabric or cord layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Tyre Moulding (AREA)

Abstract

524,019. Moulding wheel tyres. DUNLOP RUBBER CO., Ltd., WILLSHAW, H., 'SMITH, H., and BROADBENT, F. G. Dec. 23, 1938, No. 37408. [Class 87 '(ii)] In apparatus for effecting the step of bagging in the manufacture of pneumatic tyres comprising an upper movable platen 3 contacting with the tyre casing and a movable platform 7 for manipulating the curing bag, motive power is directed to the former and is transmitted therefrom to the latter by mechanical linkage to produce automatic inter-relation of operation between the two. The platen 3 is carried by a ram operating in a cylinder 1 and is associated with a pair of links 11 having slots 27 engaging a pair of links 14 through the pins 15 The platform 7 reciprocates in a usual well 8 and is provided with a supporting table 10 for the tyre casing. The links 14 are interconnected with the piston rod 7a of the platform 7 by means of a pivoted connecting rod 19, a pair of links 20 pivoted at 21, and a pair of shackle links 25 connected to the piston rod 7a. The slots 27 are provided with heightadjustable pads 28 shaped to fit the pins 15, this adjustability enabling the time sequence of operation to be varied, and no movement. of the platform 7 ensues until the tyre casing is sufficiently expanded by the platen moving the distance of the slots 27. After the curing bag has been'expelled into the tyre casing, further movement downwardly of the platen 3 is allowed for by springs 33. Movement of the platen 3 is effected by hydraulic pressure applied to the lower or upper side of the ram and is controlled by a pair of valves having stems a<SP>1</SP>, a<SP>2</SP>, connected to a valve operating rod d. The operation is started by raising a lever f which lifts the rod d, opens valve a2 and sets a detent g to keep the rod d in its raised position. The platen 3 now descends, followed by the movement of platform 7, pressure-air also being admitted to the tyre casing a valve being operated by trip mechanism for this purpose. A striker g<SP>5</SP> on the platen arm b then disengages the detent g allowing the rod d to fall, thus closing valve a<SP>2</SP> and opening a<SP>1</SP>. The latter causes the platen 3 to rise and return to its neutral position.
GB3740838A 1938-12-23 1938-12-23 Improvements in or relating to the manufacture of pneumatic tyres Expired GB524019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3740838A GB524019A (en) 1938-12-23 1938-12-23 Improvements in or relating to the manufacture of pneumatic tyres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3740838A GB524019A (en) 1938-12-23 1938-12-23 Improvements in or relating to the manufacture of pneumatic tyres

Publications (1)

Publication Number Publication Date
GB524019A true GB524019A (en) 1940-07-29

Family

ID=10396250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3740838A Expired GB524019A (en) 1938-12-23 1938-12-23 Improvements in or relating to the manufacture of pneumatic tyres

Country Status (1)

Country Link
GB (1) GB524019A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0346796A2 (en) * 1988-06-16 1989-12-20 Firma Schade Gbr Device for treating floors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0346796A2 (en) * 1988-06-16 1989-12-20 Firma Schade Gbr Device for treating floors
EP0346796A3 (en) * 1988-06-16 1990-08-01 Firma Schade Gbr Device for treating floors

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