Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
225 words
A machine for refinishing the end edges of air seal flanges which are located at the extremities of turbine blades and which have been resurfaced by welding, comprising in combination: a. a stationary base, b. a contoured back-up shoe affixed to the base at a work-performing station thereon and having a contoured surface fixedly disposed in a work-performing zone, c. an abrasive belt having a surface provided with cutting particles, d. means for driving said belt over the back-up shoe with the back of the belt engageable with the shoe, said belt being capable of yielding upon said engagement and conforming to the shape of the contoured surface, e. a slide movable over the base toward and away from said shoe at the work-performing station, f. a clamping device carried by the slide, adapted to clamp a turbine blade so as to enable the slide to present the resurfaced seal flange of the blade to the cutting belt to be resurfaced thereby, said slide including means for positioning the blade at a predetermined fixed elevation above the base in said work-performing zone, and g. cooperable adjustable stop means including a stop member on the base, for limiting the advancing movement of the turbine blade on the belt, thereby to establish the amount of flange required to be retained on the blade after the resurfacing thereof.
Claim 2
Dependent Claim
225 words
A machine for refinishing the end edges of air seal flanges which are located at the extremities of turbine blades and which have been resurfaced by welding, comprising in combination: a. a stationary base, b. a contoured back-up shoe affixed to the base at a work-performing station thereon and having a contoured surface fixedly disposed in a work-performing zone, c. an abrasive belt having a surface provided with cutting particles, d. means for driving said belt over the back-up shoe with the back of the belt engageable with the shoe, said belt being capable of yielding upon said engagement and conforming to the shape of the contoured surface, e. a slide movable over the base toward and away from said shoe at the work-performing station, f. a clamping device carried by the slide, adapted to clamp a turbine blade so as to enable the slide to present the resurfaced seal flange of the blade to the cutting belt to be resurfaced thereby, said slide including means for positioning the blade at a predetermined fixed elevation above the base in said work-performing zone, and g. cooperable adjustable stop means including a stop member on the base, for limiting the advancing movement of the turbine blade on the belt, thereby to establish the amount of flange required to be retained on the blade after the resurfacing thereof.
Claim 3
Dependent Claim
25 words
A machine as in claim 1, and further including cooperable guide means on the base and slide, to guide the latter in the advancing movement.
Claim 4
Dependent Claim
61 words
A machine as in claim 1, and further including: a. an indicator carried by the base, said indicator having a feeler, and b. cooperable guide structures on said base and slide, to guide the latter for advancing movement toward the indicator whereby the resurfaced flange of the turbine blade can be engaged with the indicator feeler to check the resurfacing operation.
Claim 5
Dependent Claim
47 words
A machine as in claim 3, and further including: a. cooperable adjustable stop structures including a stop rigid with the base, for limiting the advancing movement of the slide toward the indicator so as to enable the latter to provide a reading of the resurfaced flange edge.
Claim 6
Dependent Claim
58 words
A machine as in claim 4, wherein: a. the means for driving the belt comprises a plurality of pulleys around and over which the belt passes, including one pulley above the base and one pulley below the base, b. said base having a well at the work-performing station, through which the belt extends in passing over said pulleys.
Claim 7
Dependent Claim
30 words
A machine as in claim 4, wherein: a. the back-up shoe comprises a member extending upward from the base and having a concave surface facing the back of the belt.
Claim 8
Dependent Claim
25 words
A machine as in claim 1, wherein: a. the stop means comprises an abutment on the slide, engageable with the stop member of the base.
Claim 9
Dependent Claim
18 words
A machine as in claim 7, wherein: a. the stop member of the base comprises an adjusting screw.
Claim 10
Dependent Claim
36 words
A machine as in claim 4, wherein: a. the stop means comprises an abutment on the slide, engageable with the stop member of the base, b. said stop structures including the said abutment on the slide.
Claim 11
Dependent Claim
19 words
A machine as in claim 9, wherein: a. the stop member and stop on the base comprise adjusting screws.