Roofing system

Claim 2

Roofing apparatus for handling roofing panels over purlins having tops and top free edges running the length of a pitched roof for supporting the lengths of panels in a slope direction of roof pitch comprising, means defining a carriage structure with an elongated skeletal frame extending orthogonal to the purlins and spaced wheel means riding on each of several adjacent purlins and carrying the skeletal frame, the carriage structure extending over a length of at least half the length of the roofing panels to be emplaced, each of the wheel means comprising at least first and second wheels with said first wheel having an essentially horizontal axis and said second wheel having an essentially vertical axis, the first wheel riding on top of a purlin and the vertical axis second wheel being arranged to bear against the top free edge of a purlin, at least one such wheel wheel being provided for each of several adjacent purlins of the roofing, and wherein the carriage structure is of ladder form and comprises at least two of said wheel means at each rung of the ladder, and wherein each said wheel means comprises a wheel supporting frame demountably clamped onto said carriage structure, and wherein each wheel supporting frame comprises an inverted U-form straddling the top of a purlin and holes in opposing legs of the U-form define said horizontal axis while opposing bent out ears in one of said legs with holes therein define said vertical axis, the U-form wheel supporting frame having cutouts in opposing U-legs for fitting closely over a ladder leg, and further comprising, means for demountably securing the wheel supporting frame to the ladder leg and means for securing a ladder rung end to the wheel supporting frame.

Claim 3

Roofing apparatus for handling roofing panels over purlins having tops and top free edges running the length of a pitched roof for supporting the lengths of panels in a slope direction of roof pitch comprising, means defining a carriage structure with an elongated skeletal frame extending orthogonal to the purlins and spaced wheel means riding on each of several adjacent purlins and carrying the skeletal frame, the carriage structure extending over a length of at least half the width of the pitched roof on which panels are to be emplaced, each of the wheel means comprising at least first and second wheels with said first wheel having an essentially horizontal axis and said second wheel having an essentially vertical axis, the first wheel riding on top of a purlin and the vertical axis second wheel being arranged to bear against the top free edge of a purlin, at least one such wheel means being provided for each of several adjacent purlins of the roofing, and wherein the carriage structure is of ladder form and comprises at least two of said wheel means at each rung of the ladder, and wherein each said wheel means comprises a wheel supporting frame demountably clamped onto said carriage structure, the wheel supporting frame being of bent and pierced metal plate construction, and wherein each wheel supporting frame comprises an inverted U-form straddling the top of a purlin and holes in opposing legs of the U-form define said horizontal axis while opposing bent out ears in one of said legs with holes therein define said vertical axis, the U-form wheel supporting frame having cutouts in opposing U-legs for fitting closely over a ladder leg, and further comprising, means for demountably securing the wheel supporting frame to the ladder leg and means for securing a ladder rung end to the wheel supporting frame.

Claim 4

Roofing apparatus for handling roofing panels over purlins having tops and top free edges running the length of a pitched roof for supporting the lengths of panels in a slope direction of roof pitch comprising, means defining a carriage structure with an elongated skeletal frame extending orthogonal to the purlins and spaced wheel means riding on each of several adjacent purlins and carrying the skeletal frame, the carriage structure extending over a length of at least half the width of the pitched roof on which panels are to be emplaced, each of the wheel means comprising at least first and second wheels with said first wheel having an essentially horizontal axis and said second wheel having an essentially vertical axis, the first wheel riding on top of a purlin and the vertical axis second wheel being arranged to bear against the top free edge of a purlin, at least one such wheel means being provided for each of several adjacent purlins of the roofing, and wherein the carriage structure is of ladder form and comprises at least two of said wheel means at each rung of the ladder, and wherein each said wheel means comprises a wheel supporting frame demountably clamped onto said carriage structure, the wheel supporting frame being of bent and pierced metal plate construction, and wherein each wheel supporting frame comprises an inverted U-form straddling the top of a purlin and holes in opposing legs of the U-form define said horizontal axis while opposing bent out ears in one of said legs with holes therein define said vertical axis, the U-form wheel supporting frame having cutouts in opposing U-legs for fitting closely over a ladder leg, and further comprising, means for demountably securing the wheel supporting frame to the ladder leg and means for securing a ladder rung end to the wheel supporting frame.