US1466318A - Means for curing tires - Google Patents

Means for curing tires Download PDF

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Publication number
US1466318A
US1466318A US484849A US48484921A US1466318A US 1466318 A US1466318 A US 1466318A US 484849 A US484849 A US 484849A US 48484921 A US48484921 A US 48484921A US 1466318 A US1466318 A US 1466318A
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United States
Prior art keywords
curing
tube
paper
tires
curing tires
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Expired - Lifetime
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US484849A
Inventor
Harry F Waters
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KARL C SCHUYLER
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KARL C SCHUYLER
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Publication date
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Priority to US484849A priority Critical patent/US1466318A/en
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Publication of US1466318A publication Critical patent/US1466318A/en
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    • 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)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0654—Flexible cores therefor, e.g. bladders, bags, membranes, diaphragms
    • 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)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0654—Flexible cores therefor, e.g. bladders, bags, membranes, diaphragms
    • B29D2030/0655—Constructional or chemical features of the flexible cores
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/50—Use of fluid pressure in molding

Definitions

  • HARRY F WATERS, OF DENVER, COLORADO, ASSIGNOR 'I'O KARL C. SCEUYLER, TRUSTEE, OF DENVER, COLORADO.
  • This invention relates to a method and means for curing tires and has for its object to dispense with the costly air bag now in use and substitute therefor a cheap bag made of paper or equivalent material.
  • my present invention I do not aim to dispense with the air bag but rather to provide a bag of such material as paper or the like which is cheap and in which the deterioration will amount to only a small fraction per tire of the amount when the ordinary curing bag is used.
  • FIG. 1 is a cross section in which one form of my invention is shown.
  • Fig. 2 shows a cross section of a modified form.
  • Fig. 3 shows a fragmentary longitudinal section of the tube shown in Fig. 4.
  • Fig. 4 shows a cross section taken on line 4-4, Fig. 3, and
  • Fig. 5 shows a longitudinal section of a.
  • a carcass 1 mounted on the usual rim 2 and enclosed in the curing mould 3, which is made in two parts.
  • the carcass is lined on the inside with paper 4 which extends to the inner surface of the rim 2.
  • a flap 5, also of paper, is provided for the purpose of obtaining an air tight seal, a valve 6 being attached to paper flap 5 and extending through the rim in the manner shown.
  • the paper must, of course, be air tight and for this purpose a paper hav ing this property is selected or else it must be given a coating of some substance that will fill the pores and render it air tight.
  • a fluid such as air or water is introduced into the chamber 7 and sufficient pressure applied to force the carcass into the mould after which the whole is subjected to the proper degree of heat and cured.
  • Fig. 2 I have introduced within the chamber 7 a paper tube 8 provided with an air valve stem 6.
  • the paper tube is made with two longitudinal folds 9, to allow for the requisite expansion of the tube as pressure is applied to the inner surface thereof to force the carcass against the walls of the mould. It will be noticed that when a paper tube of this type is used the rim 2 can be dispensed with and the whole enclosed in the curing moulds 4.
  • Figs. 3 and 4 I have shown a paper tube 10 which is well adapted for the purpose under consideration.
  • This tube has a part of its surface corrugated as indicated by reference numeral 11 whereby it is adapted to expand longitudinally.
  • reference numeral 11 In order to permit it to be used in chambers of different sizes it is provided with a longitudinal lap joint 12 as clearly illustrated in Fig. 4.
  • a valve stem 6 is provided for the introduction of the fluid.
  • Fig. 5 I have shown a modified tube 13 in which longitudinal expansion is provided for by means of an annular fold 14.
  • This tube is used in the same manner as' tubes 8 and 10.
  • the tube may be cut and one end inserted into the other resulting in a slip joint.
  • An air bag for use in curing tires comprising a paper tube.
  • An air bag for use in curing tires comprising a paper tube provided with means to permit it to expand to fill the chamber in the tire carcass.
  • An air bag for use in curing tires com- I prising a paper tube, provided with means to permit it to expand longitudinally so as to till the chamber in the tire carcass.
  • An air bag for use in curing tires comprising a paper tube, provided with means to permit it to expand longitudinally and transversely so as to fill the chamber in the tire carcass.
  • An air bag for use in curing tires comprising an annular paper tube.
  • An air bag for use in curing tires comprising an annular paper tube rovided with means to permit it to expan so as to fill the chamber in the tire carcass.
  • An air bag for-use in curing tires comprising an annular paper tube, provided with means to permit it to expand longitudinally so as to fill the chamber in the tire carcass.
  • An air bag for use in curing tires comprising an annular paper tube provided with means to permit it to expand longitutudinally and transversely so as to completely fill the chamber in said tire carcass.
  • An air bag for use in curing tires comprising an annular paper" tube having a longitudinal lap joint and transverse corrugations whereby it can expand both transversally and longitudinally.

Description

mmmw
H. F. WATERS MEANS FOR CURING TIRES Aug. 28, 1923 Original Filed July 15 1921 A TTORNE Y.
Patented Aug. 28, 1923.
UNITED STAT 1,466,318 FF! c a.
HARRY F. WATERS, OF DENVER, COLORADO, ASSIGNOR 'I'O KARL C. SCEUYLER, TRUSTEE, OF DENVER, COLORADO.
EEANS FOR CURING TIRES.
Application filed July 15, 1921, Serial No. 484,849. Renewed January 25, 1928. Serial No. 534,588.
To all w from it may concern:
Be it known that I, HARRY F. WA'rnRs, a citizen of the United States, residing at the city and county of Denver and State of Colorado. have invented certain new and useful Improvements in Means'for Curing Tires; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.
This invention relates to a method and means for curing tires and has for its object to dispense with the costly air bag now in use and substitute therefor a cheap bag made of paper or equivalent material.
The air bags used in curing tires are, as stated above, costly and deteriorate very rapidly thus adding materially to the cost of the tires, for this reason experiments have been conducted for the purpose of eliminating them entirely but so far as I am aware, with the exception of the method outlined in my copending application Serial No. 82,501, filed July 5, 1921, they have all resulted in failures and have been abandoned.
In my present invention I do not aim to dispense with the air bag but rather to provide a bag of such material as paper or the like which is cheap and in which the deterioration will amount to only a small fraction per tire of the amount when the ordinary curing bag is used.
In order to more clearly describe my invention I shall have reference to the attached drawing in which Fig. 1 is a cross section in which one form of my invention is shown.
Fig. 2 shows a cross section of a modified form.
Fig. 3 shows a fragmentary longitudinal section of the tube shown in Fig. 4.
Fig. 4 shows a cross section taken on line 4-4, Fig. 3, and
Fig. 5 shows a longitudinal section of a.
tube provided with means to permit of longitudinal expansion.
The same reference characters indicate the same parts throughout the difi'erent views.
'In Fig. 1 I have shown a carcass 1 mounted on the usual rim 2 and enclosed in the curing mould 3, which is made in two parts. The carcass is lined on the inside with paper 4 which extends to the inner surface of the rim 2. A flap 5, also of paper, is provided for the purpose of obtaining an air tight seal, a valve 6 being attached to paper flap 5 and extending through the rim in the manner shown. The paper must, of course, be air tight and for this purpose a paper hav ing this property is selected or else it must be given a coating of some substance that will fill the pores and render it air tight. A fluid such as air or water is introduced into the chamber 7 and sufficient pressure applied to force the carcass into the mould after which the whole is subjected to the proper degree of heat and cured.
In Fig. 2 I have introduced within the chamber 7 a paper tube 8 provided with an air valve stem 6. The paper tube is made with two longitudinal folds 9, to allow for the requisite expansion of the tube as pressure is applied to the inner surface thereof to force the carcass against the walls of the mould. It will be noticed that when a paper tube of this type is used the rim 2 can be dispensed with and the whole enclosed in the curing moulds 4.
In Figs. 3 and 4: I have shown a paper tube 10 which is well adapted for the purpose under consideration. This tube has a part of its surface corrugated as indicated by reference numeral 11 whereby it is adapted to expand longitudinally. In order to permit it to be used in chambers of different sizes it is provided with a longitudinal lap joint 12 as clearly illustrated in Fig. 4. A valve stem 6 is provided for the introduction of the fluid. When d tube like that shown in Figs. 3 and 4 is used, the rim 2 can be dispensed with and the carcass enclosed directly within the curing moulds as shown in Fig. 2.
In Fig. 5 I have shown a modified tube 13 in which longitudinal expansion is provided for by means of an annular fold 14. This tube is used in the same manner as ' tubes 8 and 10. Instead of an annular fold as shown, the tube may be cut and one end inserted into the other resulting in a slip joint.
From the above it appears that I have invented a cheap tube of paper that can be used for replacing the costly air bag now in use in curing automobile and similar tires. These tubes are cheap as to first cost and are also capable of withstanding the strain of repeated use, thus resulting in a very economical device for the purpose under consideration.
Having described my invention what I claim asnew and desire to have protected by Letters Patent is:
1. An air bag for use in curing tires comprising a paper tube.
2. An air bag for use in curing tires comprising a paper tube provided with means to permit it to expand to fill the chamber in the tire carcass.
3. An air bag for use in curing tires com- I prising a paper tube, provided with means to permit it to expand longitudinally so as to till the chamber in the tire carcass.
4. An air bag for use in curing tires comprising a paper tube, provided with means to permit it to expand longitudinally and transversely so as to fill the chamber in the tire carcass.
5. An air bag for use in curing tires comprising an annular paper tube.
naeaeae 6. An air bag for use in curing tires comprising an annular paper tube rovided with means to permit it to expan so as to fill the chamber in the tire carcass.
7. An air bag for-use in curing tires comprising an annular paper tube, provided with means to permit it to expand longitudinally so as to fill the chamber in the tire carcass.
8. An air bag for use in curing tires comprising an annular paper tube provided with means to permit it to expand longitutudinally and transversely so as to completely fill the chamber in said tire carcass.
9. An air bag for use in curing tires comprising an annular paper" tube having a longitudinal lap joint and transverse corrugations whereby it can expand both transversally and longitudinally.
10. A. sisting. of paper, rovided' with'means to permit it to expan so as to fill the chamber in the tire carcass.
In testimony whereof ll ailix my signature.
HARRY r. Warnns.
lining for use in curing tires, con-
US484849A 1921-07-15 1921-07-15 Means for curing tires Expired - Lifetime US1466318A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2454666A (en) * 1945-09-21 1948-11-23 Yoder Co Apparatus for vulcanizing flexible tubes
US2989779A (en) * 1954-09-01 1961-06-27 Robbins Tire And Rubber Compan Tire pressure retainer mounting for tire retreading molds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2454666A (en) * 1945-09-21 1948-11-23 Yoder Co Apparatus for vulcanizing flexible tubes
US2989779A (en) * 1954-09-01 1961-06-27 Robbins Tire And Rubber Compan Tire pressure retainer mounting for tire retreading molds

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