Convertible web tension transducer
First Claim
1. A web tension transducer convertible to support a live roll supporting shaft, a live roll and a stationary shaft supporting a live roll comprising:
- a) a coupling for fixed attachment to one of a shaft and a roll defining a roll axis;
b) a resiliently bendable beam carried by a support member;
c) the coupling being resiliently carried by said beam by way of a self-aligning bearing disposed to permit relative rotation therebetween, wherein said beam is part of a beam structure having mans for supporting one race of the self-aligning bearing;
d) means to provide an output signal representing deflection of said beam; and
e) selectively used means which, when installed in the transducer, prevents said relative rotation only about said roll axis, the coupling and support member being free for relative rotation about said roll axis when said means is not installed in the transducer, said selectively used means comprising a pivot pin, supported in a bore i one of the beam structure and coupling, extending normal to said roll axis and defining a pin axis intersecting that roll axis, said pin passing through in close proximity to transverse walls of a slot, defined by the other of the beam structure and coupling, extending normal to said axis, the presence of the pin in the slot preventing relative rotation, about said roll axis, between the coupling and the support member when the pin is installed in the transducer, the omission of the pin from the transducer, allowing relative rotation of the coupling relative to the support member about said roll axis.
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Accused Products
Abstract
A convertible web tension transducer and a roll assembly including two such transducers in which each transducer includes a coupling supported by a pair of resilient beams from a support member through a self-aligning bearing permitting pivotal movement of the coupling relative to the support member in any direction normal to a roll axis of the transducer and the roll assembly and being provided with a pivot pin arrangement to prevent relative rotation of the coupling and support member when a stationary shaft supporting a live roll is supported by the couplings of the transducers, the pivot pin arrangement including a pivot pin which may be omitted from the transducer when a live shaft or roll is supported by the couplings of the two transducers with a consequent requirement for relative rotation of the coupling and support member, about the roll axis, to be permitted.
19 Citations
6 Claims
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1. A web tension transducer convertible to support a live roll supporting shaft, a live roll and a stationary shaft supporting a live roll comprising:
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a) a coupling for fixed attachment to one of a shaft and a roll defining a roll axis; b) a resiliently bendable beam carried by a support member; c) the coupling being resiliently carried by said beam by way of a self-aligning bearing disposed to permit relative rotation therebetween, wherein said beam is part of a beam structure having mans for supporting one race of the self-aligning bearing; d) means to provide an output signal representing deflection of said beam; and e) selectively used means which, when installed in the transducer, prevents said relative rotation only about said roll axis, the coupling and support member being free for relative rotation about said roll axis when said means is not installed in the transducer, said selectively used means comprising a pivot pin, supported in a bore i one of the beam structure and coupling, extending normal to said roll axis and defining a pin axis intersecting that roll axis, said pin passing through in close proximity to transverse walls of a slot, defined by the other of the beam structure and coupling, extending normal to said axis, the presence of the pin in the slot preventing relative rotation, about said roll axis, between the coupling and the support member when the pin is installed in the transducer, the omission of the pin from the transducer, allowing relative rotation of the coupling relative to the support member about said roll axis. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification