Scaffolding

Claim 2

A scaffolding framework comprising: a. a plurality of spaced, vertical scaffolding poles, each having at least one pair of diametric lugs extending transversely therefrom at opposite side thereof and intermediate the ends thereof, b. at least one horizontal pole having a scaffolding joint at each end thereof for engaging respective of said vertical poles, c. each scaffolding joint comprising a pair of vertically disposed cheek plates spaced from each other and projecting beyond said end of said horizontal pole and forming an open-sided vertical channel therebetween receiving an intermediate part of an adjoining vertical pole, the width of the opening in the side of the channel being sufficient for said vertical pole to pass laterally therethrough and each of said cheek plates having a downwardly open recess therein engaging one of said pair of lugs on the adjoining vertical pole, d. whereby said horizontal pole is supported against axial movement by the lugs and may be lowered and raised to cause said open recesses in said pair of cheek plates to engage and disengage respectively said pair of lugs and, when raised, may be moved horizontally towards and away from said vertical pole to cause the intermediate part of said vertical pole to pass through the opening in said vertical channel.

Claim 3

A scaffolding framework according to claim 1 wherein the vertical poles are provided with a plurality of said pair of lugs at intervals along the length thereof for locating the horizontal poles at a variety of different heights.

Claim 4

A scaffolding framework according to claim 1 wherein the pair of cheek plates include recesses to receive a second horizontal pole at an angle to the first horizontal pole, said joint further comprising clamping means to clamp said second pole in position in said recesses at said angle.

Claim 5

A scaffolding framework according to claim 3 wherein each cheek plate is provided with a downwardly hooked portion which forms a jaw to receive said second horizontal pole at right angles to the first horizontal pole.

Claim 6

A scaffolding framework according to claim 4 wherein the clamping means comprises a plate mounted between said pair of cheek plates and a screw-threaded bolt threadedly mounted in an aperture in said plate and operable to clamp said second horizontal pole in said jaw.

Claim 7

A scaffolding framework according to claim 5 wherein each of said recesses formed by said hooked portion has a mouth in one side thereof and a curved portion opposite said mouth off-set with respect to said mouth and said plate and bolt are located between the hooked portions of said cheek plates adjacent said off-set curved portion.

Claim 8

A scaffolding framework according to claim 1 wherein each of the downwardly open recesses comprises a downwardly open vertical slot in the lower edge of each cheek plate and each of the lugs on the vertical pole comprises a projecting fin which closely fits in said vertical slot.

Claim 9

A scaffolding framework according to claim 7 wherein the lug is of rectangular elevation with a longer dimension in the vertical direction.

Claim 10

A scaffolding framework according to claim 7 wherein the lug is of inverted T-shaped elevation.

Claim 11

A scaffolding framework according to claim 1 wherein the cheek plates are welded to the end of the horizontal scaffolding plate.

Claim 12

A scaffolding member comprising: a. a pole and b. a scaffolding joint at at least one end thereof, c. said scaffolding joint comprising a pair of cheek plates spaced from each other and projecting beyond the end of said pole and forming an open-sided channel therebetween for receiving a second pole intermediate the ends thereof and at right angles to said first pole, the width of the opening in the side of the channel being sufficient for said second pole to pass laterally therethrough, and both of said cheek plates each having an open recess in one edge thereof for receiving a pair of diametric lugs extending from opposite sides of a second pole intermediate the ends thereof, d. whereby the cheek plates and thus said first pole may be supported and held against axial movement by the lugs when the poles are assembled with the first pole horizontal and the second pole vertical and the first pole may be moved laterally to cause said open recesses in said pair of cheek plates to engage and disengage respectively said pair of lugs and may be moved axially to cause the intermediate part of said second pole to pass through the opening in said channel.

Claim 13

A scaffolding member comprising: a. a pole and b. a scaffolding joint at at least one end thereof, c. said scaffolding joint comprising a pair of cheek plates spaced from each other and projecting beyond the end of said pole and forming an open-sided channel therebetween for receiving a second pole intermediate the ends thereof and at right angles to said first pole, the width of the opening in the side of the channel being sufficient for said second pole to pass laterally therethrough, and both of said cheek plates each having an open recess in one edge thereof for receiving a pair of diametric lugs extending from opposite sides of a second pole intermediate the ends thereof, d. whereby the cheek plates and thus said first pole may be supported and held against axial movement by the lugs when the poles are assembled with the first pole horizontal and the second pole vertical and the first pole may be moved laterally to cause said open recesses in said pair of cheek plates to engage and disengage respectively said pair of lugs and may be moved axially to cause the intermediate part of said second pole to pass through the opening in said channel.

Claim 14

A scaffolding member according to claim 11 wherein each of said recesses comprises an open-ended slot formed in an edge of each cheek plate, said slots in said pair of cheek plates being adapted to fit over a pair of projecting fins formed on opposite sides of said second pole.

Claim 15

A scaffolding member according to claim 12 wherein the pair of cheek plates include recesses to receive a third scaffolding pole at an angle to the first and second poles, said joint further comprising means to clamp said third pole in position in said recesses relative to said first and second poles.

Claim 16

A scaffolding member according to claim 13 wherein each cheek plate is provided with a hooked portion which forms a jaw to receive said third pole at right angles to said first and second poles.

Claim 17

A scaffolding member according to claim 14 wherein the clamping means comprises a plate mounted between said pair of cheek plates and a screw-threaded bolt threadedly engaged in an aperture in said plate and operable to clamp said third pole in said jaw.

Claim 18

A scaffolding member according to claim 15 wherein each of said recesses formed by said hooked portion has a mouth in one side thereof and a curved portion opposite said mouth off-set with respect to said mouth and said plate and bolt are located between the hooked portions of said cheek plates adjacent said off-set curved portion.

Claim 19

A scaffolding member according to claim 11 wherein the cheek plates are welded to the pole.

Claim 20

A scaffolding framework comprising: a. a plurality of spaced, vertically oriented scaffolding poles, each having a plurality of pairs of diametric lugs extending transversely therefrom at intervals on opposite sides thereof along the length thereof, each lug being of rectangular elevation with a longer dimension in the vertical direction, b. at least one horizontal pole having a scaffolding joint at each end thereof for engaging respective of said vertical poles, c. each scaffolding joint comprising a pair of vertically disposed cheek plates spaced from each other and projecting beyond said end of said horizontal pole and forming an open-sided vertical channel therebetween receiving an intermediate part of an adjoining vertical pole, the width of the opening in the side of the channel being sufficient for said vertical pole to pass laterally therethrough, each of said cheek plates having a downwardly open vertical slot in the lower edge thereof for closely fitting one of said pair of lugs on said vertical pole and each cheek plate having a downwardly hooked portion forming a jaw about a portion of a recess adapted for receiving a second horizontal pole at an angle to the first horizontal pole, clamping means being provided to clamp said second pole in position in said recess at said angle, d. whereby said horizontal pole is supported and held against axial movement by the lugs and may be lowered and raised to cause said open recesses in said pair of cheek plates to engage and disengage respectively said pair of lugs and, when raised, may be moved horizontally towards and away from said vertical pole to cause the intermediate part of said vertical pole to pass through the opening in said vertical channel.

Claim 21

A scaffolding framework comprising: a. a plurality of spaced, vertically oriented scaffolding poles, each having a plurality of pairs of diametric lugs extending transversely therefrom at intervals on opposite sides thereof along the length thereof, each lug being of rectangular elevation with a longer dimension in the vertical direction, b. at least one horizontal pole having a scaffolding joint at each end thereof for engaging respective of said vertical poles, c. each scaffolding joint comprising a pair of vertically disposed cheek plates spaced from each other and projecting beyond said end of said horizontal pole and forming an open-sided vertical channel therebetween receiving an intermediate part of an adjoining vertical pole, the width of the opening in the side of the channel being sufficient for said vertical pole to pass laterally therethrough, each of said cheek plates having a downwardly open vertical slot in the lower edge thereof for closely fitting one of said pair of lugs on said vertical pole and each cheek plate having a downwardly hooked portion forming a jaw about a portion of a recess adapted for receiving a second horizontal pole at an angle to the first horizontal pole, clamping means being provided to clamp said second pole in position in said recess at said angle, d. whereby said horizontal pole is supported and held against axial movement by the lugs and may be lowered and raised to cause said open recesses in said pair of cheek plates to engage and disengage respectively said pair of lugs and, when raised, may be moved horizontally towards and away from said vertical pole to cause the intermediate part of said vertical pole to pass through the opening in said vertical channel.