members application_number US 17380702 A description fig1 shows part of a tube and clamp scaffold system 2 having a series of vertical tubular members 4 connected horizontal tubular members 6 and diagonal tubular brace members 8 the tubular members are connected by means of a series of releasable clamps 10 this type of scaffolding system has been used for building construction and maintenance for at least 20 years and this type of system has the advantage that it is relatively straightforward to erect and can be knocked down and stored efficiently the releasable clamps used for connecting a diagonal member to a horizontal or vertical member typically are pivoting clamp arrangements to accommodate variations in the angle of the diagonal to the horizontal or vertical member the clamps used for connecting a horizontal to a vertical member are typically fixed as the connection should be approximately 90 degrees tubes of clamps 10 can include captured wedge members which cooperates with the pivoting latches of the clamps to secure the clamp to the tubular member the wedge is brought into an engaging position and typically driven downwardly to a secure position by means of a hammer or other blunt object when the system is to be taken down the wedge may be released and the clamps removed once the tube and clamp scaffolding system is in place it is possible to attach deck boards and guard rails to provide additional safety for the workers however the workers who are actually erecting a system are exposed to increased risk to overcome this deficiency a series of anchor clamps 20 can be secured to any of the tubular members to provide fastening points for attaching the hook.