Abstract: A pre-assembled flexible connector for resiliently connecting spaced fluid conduits without making on-site adjustments in the flexible connector. The flexible connector is formed of a flexible body member having at each end an annualar support member in the form of a coupling flange for making a mating engagement with one of the spaced fluid conduits. The coupling flanges have at equally spaced points of attachment adjacent its periphery at least two flexible control elements resistant to elongation which interconnect the coupling flanges and limit the axial extension of the body member. Each of the flexible control elements has its ends fixedly enclosed in an externally threaded sleeve which forms a permanent threaded engagement with an internally threaded passage formed in the coupling flanges at the equally spaced points of attachment in facing surfaces of the coupling flanges without the ends of the sleeves protruding beyond the outer surfaces of the coupling flanges.

Abstract: An article for feeding into a mechanical printer the uppermost form of a continuous assembly of forms having lateral marginal sections with spaced holes coinciding with the spacing of the feed pins of the feed mechanism of the mechanical printer comprising an elongated narrow flexible strip foldable down the middle and having oppositely disposed holes in each folded half longitudinally spaced to coincide with the feed pin holes in the uppermost form and having one surface of the strip coated with a pressure sensitive adhesive film; said flexible strip adapted to be mounted on the marginal sections of the uppermost form with the holes therein aligned with the holes in the marginal section and secured to the marginal sections of said uppermost form so that the uppermost ends of the flexible strips extend substantially above the upper edge of the form, whereby the uppermost ends of the strips can be engaged by the mechanical feed means to facilitate properly positioning the uppermost form in the printer.