Rubber driving band, artillery shell employing same, and method of making the band and assembling same in the shell
First Claim
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1. A method of forming a driving band on an artillery shell comprising the steps of:
- (a) coating a substantially longitudinally inelastic fabric strip with uncured rubber,(b) partially curing the rubber coated strip to a tacky state,(c) wrapping the coated strip circumferentially to form an annular preform with adjacent turns of the strip being adhered together by the tacky rubber, and(d) molding and curing the preform directly on an artillery shell casing to form an integral band directly molded on the shell casing.
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Abstract
An integrally molded laminated driving band for artillery shells is formed of radially alternating, circumferentially extending layers of fabric and rubber. The driving band is made by coating a fabric strip with uncured rubber, wrapping the coated strip to form an annular preform, and molding and curing the preform to form an integrally molded band. Various means are provided for assembling the driving band in an artillery shell.
20 Citations
8 Claims
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1. A method of forming a driving band on an artillery shell comprising the steps of:
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(a) coating a substantially longitudinally inelastic fabric strip with uncured rubber, (b) partially curing the rubber coated strip to a tacky state, (c) wrapping the coated strip circumferentially to form an annular preform with adjacent turns of the strip being adhered together by the tacky rubber, and (d) molding and curing the preform directly on an artillery shell casing to form an integral band directly molded on the shell casing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of forming a driving band on an artillery shell comprising the steps of:
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(a) coating a substantially longitudinally inelastic fabric strip with uncured rubber, (b) partially curing the rubber coated strip to a tacky state, (c) wrapping the coated strip circumferentially to form an annular preform with adjacent turns of the strip being adhered together by the tacky rubber, (d) molding and curing the preform to form an integrally molded band, (e) securing a thermally expansive ring to the radially inner surface of the molded band, (f) heating the ring to expand it to a diameter greater than that of an artillery shell casing, (g) slipping the thermally expanded ring over the shell casing and positioning it at a proper location, and (h) then cooling the ring to shrink-fit same around the casing thereby to securely affix the band to the casing.
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Specification