Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
57 words
A sewing machine cabinet comprising a substantially horizontal platform for supporting a sewing machine in an operable position, a top for said cabinet superposed over said platform, means defining an opening in said top through which the sewing machine may freely pass, and means for elevating said top vertically between a first position and a second position.
Claim 2
Dependent Claim
57 words
A sewing machine cabinet comprising a substantially horizontal platform for supporting a sewing machine in an operable position, a top for said cabinet superposed over said platform, means defining an opening in said top through which the sewing machine may freely pass, and means for elevating said top vertically between a first position and a second position.
Claim 3
Dependent Claim
50 words
A cabinet as recited in claim 1 wherein said top elevating means comprises lifting means engaging said top and movable in a vertical plane, a manually rotatable crank member and lever, and means connecting said crank member with said lifting means for moving said lifting means in said vertical plane.
Claim 4
Dependent Claim
54 words
A cabinet as recited in claim 2 wherein said lifting means comprises at least a pair of pivotally mounted lifting arms, said lever means comprising a first lever connecting said crank to a first lifting arm of said pair and a second lever connecting said crank to the second lifting arm of said pair.
Claim 5
Dependent Claim
57 words
A cabinet as recited in claim 3 wherein each of said lifting arms comprises a bell crank lever, means for pivotally mounting said bell crank in said cabinet, a first arm of each bell crank being connected to one of said levers, the second arm of each bell crank being disposed in abutting relation with said top.
Claim 6
Dependent Claim
83 words
A sewing machine cabinet comprising front, rear and side panels secured together to form a frame, a sewing machine platform mounted in said frame on which a sewing machine is adapted to rest, a top comprising a substantially horizontal planar surface and a downwardly extending skirt telescopically received about the tops of said panels, means defining an aperture in said planar surface through which a sewing machine may freely pass, and means for elevating said top relative to said panels and support platform.
Claim 7
Dependent Claim
83 words
A sewing machine cabinet comprising front, rear and side panels secured together to form a frame, a sewing machine platform mounted in said frame on which a sewing machine is adapted to rest, a top comprising a substantially horizontal planar surface and a downwardly extending skirt telescopically received about the tops of said panels, means defining an aperture in said planar surface through which a sewing machine may freely pass, and means for elevating said top relative to said panels and support platform.
Claim 8
Dependent Claim
29 words
A cabinet as recited in claim 5 including stop means secured to said top to limit the travel of said top between an upper and a lower elevational limit.
Claim 9
Dependent Claim
28 words
A cabinet as recited in claim 6 including means for pivotally mounting said support platform on said frame for pivoting between a horizontal position and a vertical position.
Claim 10
Dependent Claim
29 words
A cabinet as recited in claim 7 wherein said top includes at least a leaf hinged thereto for closing said opening when said platform is in the vertical position.
Claim 11
Dependent Claim
83 words
In a cabinet as recited in claim 6, a sewing machine mounted on said support platform, said sewing machine having a bed including mounting feet on the bottom thereof and a work surface on the top thereof, said top stop means being disposed such that at said upper elevational limit said top planar surface forms a continuation of said sewing machine work surface, and at said lower elevational limit said top planar surface is at substantially the same elevation as said support platform.
Claim 12
Dependent Claim
60 words
In a cabinet as recited in claim 9 wherein said top elevating means comprises at least a pair of lifting arms engaging top at opposite sides of said aperture, lever means connected to each of said arms for moving the same in a vertical plane, and manually operable means for activating said lever means to thereby move said lifting arms.