Chimney lining slip form
OwnerMichael J. Wosjeinventor
Life of this patent
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Abstract
An apparatus for lining chimney pipes and the like with cementitious material, and particularly to the improvement in pipe lining apparatus including a conically shaped leading nose providing control switches activated by a nose cap freely positioned thereover, and a gradually rearwardly tapered hollow sectional trailing spreader body adjusted to be circumferentially enlarged by additional expansion panels connected between the separable sections of the spreader body, and a vibrator within the body to exert vibrative force on the body sections to set the cementitious material deposited externally of the apparatus between it and the chimney pipe to be lined thereby.
Claims12
An apparatus for lining pipes with cementitious material comprising:
- (a) a longitudinally split hollow circular body having a concical leading cone and an inwardly tapered trailing edge,
- (b) means connecting the portions of said body, cone and trailing edge along their longitudinal split into a unitary structure,
- (c) a movable cap member positioned over the said conically shaped leading cone,
- (d) means yieldably spacing said cap member from said cone along a longitudinal line,
- (e) a vibrator carried within said body for distributing the cementitious material about the apparatus as the material is poured over said cap, and
- (f) actuating means carried by said cone and operable by said cap as said cap is yieldably forced by the cementitious material upon said cone to actuate said vibrator.
Dependencies are inferred from the claim text.