Abstract: A jump form system provided variously with an integral jump shoe lock mechanism, a reversible gang form shear platform, and a pinion lock mechanism for a roll back carriage. The jump shoe lock mechanism includes a lever pivotably mounted to the jump form system frame above a jump shoe bearing portion of a connecting member, a sleeve mounted to the jump form system frame below the jump shoe bearing portion of the connecting member, and a sleeve-mounted safety pin that is mechanically linked to the lever for engagement and disengagement with a jump shoe. The pinion lock mechanism includes a rack and pinion provided on inner and outer portions of a telescoping carriage assembly, respectively, and a lock arm pivotably mounted to the outer portion adjacent to the pinion, with the rack, pinion, and lock arm including complementary teeth which are locked into place upon pivoting engagement of the locking arm.

Abstract: A jump form system provided variously with an integral jump shoe lock mechanism, a reversible gang form shear platform, and a pinion lock mechanism for a roll back carriage. The jump shoe lock mechanism includes a lever pivotably mounted to the jump form system frame above a jump shoe bearing portion of a connecting member, a sleeve mounted to the jump form system frame below the jump shoe bearing portion of the connecting member, and a sleeve-mounted safety pin that is mechanically linked to the lever for engagement and disengagement with a jump shoe. The pinion lock mechanism includes a rack and pinion provided on inner and outer portions of a telescoping carriage assembly, respectively, and a lock arm pivotably mounted to the outer portion adjacent to the pinion, with the rack, pinion, and lock arm including complementary teeth which are locked into place upon pivoting engagement of the locking arm.

Abstract: A jump form system provided variously with an integral jump shoe lock mechanism, a reversible gang form shear platform, and a pinion lock mechanism for a roll back carriage. The jump shoe lock mechanism includes a lever pivotably mounted to the jump form system frame above a jump shoe bearing portion of a connecting member, a sleeve mounted to the jump form system frame below the jump shoe bearing portion of the connecting member, and a sleeve-mounted safety pin that is mechanically linked to the lever for engagement and disengagement with a jump shoe. The pinion lock mechanism includes a rack and pinion provided on inner and outer portions of a telescoping carriage assembly, respectively, and a lock arm pivotably mounted to the outer portion adjacent to the pinion, with the rack, pinion, and lock arm including complementary teeth which are locked into place upon pivoting engagement of the locking arm.

Abstract: A jump form system provided variously with an integral jump shoe lock mechanism, a reversible gang form shear platform, and a pinion lock mechanism for a roll back carriage. The jump shoe lock mechanism includes a lever pivotably mounted to the jump form system frame above a jump shoe bearing portion of a connecting member, a sleeve mounted to the jump form system frame below the jump shoe bearing portion of the connecting member, and a sleeve-mounted safety pin that is mechanically linked to the lever for engagement and disengagement with a jump shoe. The pinion lock mechanism includes a rack and pinion provided on inner and outer portions of a telescoping carriage assembly, respectively, and a lock arm pivotably mounted to the outer portion adjacent to the pinion, with the rack, pinion, and lock arm including complementary teeth which are locked into place upon pivoting engagement of the locking arm.

Abstract: A building member forming apparatus having panels and a conversion corner bracket. The panels are typically dimensioned in metric units. The conversion corner bracket can include a leg having a predetermined width and a body configured to chamfer a building member. The conversion corner bracket is securable to the panels to form an orifice. When the orifice receives a construction material, the building member can be formed. By using the panels and the conversion corner bracket, the building member that has been formed within the orifice is chamfered and possesses standard U.S. customary units. The conversion corner creates a chamfer upon the building member and permits dimensioned panels with one set of units to form a building member with another set of units. The leg and the body are not symmetrical and include bores or apertures that align with bores or apertures in the building member forming apparatus.

Abstract: A building member forming apparatus is comprised of standardized metric dimensioned panels including plywood paneling, outer horizontal support beams, vertical support beams, and inner horizontal support beams. A conversion corner bracket has a first leg and a second leg joined to form a right angle, a V-shaped indented outer corner, and a rounded inside corner opposite the V-shaped indented corner. The conversion corner bracket is attached to the panels by securing members which secure the conversion corner bracket to the vertical support beam of the panels. The conversion corner allows the apparatus to convert standardized dimensioned panels for use with either metric or U.S. customary unit-based construction structures.

Abstract: A building member forming apparatus comprises panels and a conversion corner bracket. The panels are typically dimensioned in metric units. The conversion corner bracket can include a leg having a predetermined width and a body configured to chamfer a building member. The conversion corner bracket is securable to the panels to form an orifice. When the orifice receives a construction material, the building member can be formed. By using the panels and the conversion corner bracket, the building member that has been formed within the orifice is chamfered and possesses U.S. customary units. Thus, the conversion corner creates a chamfer upon the building member and permits dimensioned panels with one set of units to form a building member with another set of units. Preferably, the leg and the body are not symmetrical and include bores or apertures that align with bores or apertures in the building member forming apparatus.

Abstract: A building member forming apparatus is comprised of standardized metric dimensioned panels including plywood paneling, outer horizontal support beams, vertical support beams, and inner horizontal support beams. A conversion corner bracket has a first leg and a second leg joined to form a right angle, a V-shaped indented outer corner, and a rounded inside corner opposite the V-shaped indented corner. The conversion corner bracket is attached to the panels by securing members which secure the conversion corner bracket to the vertical support beam of the panels. The conversion corner allows the apparatus to convert standardized dimensioned panels for use with either metric or U.S. customary unit-based construction structures.

Abstract: A building member forming apparatus is comprised of standardized metric dimensioned panels including plywood paneling, outer horizontal support beams, vertical support beams, and inner horizontal support beams. A conversion corner bracket has a first leg and a second leg joined to form a right angle, a V-shaped indented outer corner, and a rounded inside corner opposite the V-shaped indented corner. The conversion corner bracket is attached to the panels by securing members which secure the conversion corner bracket to the vertical support beam of the panels. The conversion corner allows the apparatus to convert standardized dimensioned panels for use with either metric or U.S. customary unit-based construction structures.

Abstract: A concrete form having a frame with a first pair of outer frame members and a second pair of outer frame members. The first pair of outer frame members are disposed perpendicular to the second pair of outer frame members so that the first and second pairs of outer frame members define a substantially rectangular shape. The concrete form has two inner frame members connected between two of the outer frame members, the inner frame members being spaced to define a rectangular bay area therebetween. The concrete form has a flat concrete-forming member fixed to the outer frame, and a support member with a pair of end portions and a middle portion disposed between the end portions. The support member is connected to the first and second inner frame members so that the middle portion of the support member is spaced from the concrete-forming member by a first distance and so that the end portions of the support member are spaced from the concrete-forming member by a second distance smaller than the first distance.

Abstract: A concrete form having a frame with a first pair of outer frame members and a second pair of outer frame members. The first pair of outer frame members are disposed perpendicular to the second pair of outer frame members so that the first and second pairs of outer frame members define a substantially rectangular shape. The concrete form has two inner frame members connected between two of the outer frame members, the inner frame members being spaced to define a rectangular bay area therebetween. The concrete form has a flat concrete-forming member fixed to the outer frame, and a support member with a pair of end portions and a middle portion disposed between the end portions. The support member is connected to the first and second inner frame members so that the middle portion of the support member is spaced from the concrete-forming member by a first distance and so that the end portions of the support member are spaced from the concrete-forming member by a second distance smaller than the first distance.

Abstract: In order to make it possible to align a concrete form while at the same time providing a safe working walkway therealong, a scaffold bracket comprises a generally triangular shaped brace having an attachment leg, a plank supporting leg and a brace leg. The attachment leg is adapted to be secured to an outer surface of the concrete form, the plank supporting leg extends generally transversely of the attachment leg, and the brace leg extends from the attachment leg to the plank supporting leg at an acute angle to both the attachment leg and the plank supporting leg. A first stop is provided on the plank supporting leg at a preselected distance outwardly of the attachment leg to define a waler bracket for accepting a plank of predetermined width for aligning the concrete form. A second stop is provided on the plank supporting leg at a preselected distance outwardly of the first stop to define an outer limit for accepting one or more planks of predetermined width for creating a working walkway.

Abstract: A slab joint form structure for pouring of a concrete slab with a continuous shear joint including a pair of longitudinally superimposed edge forms, a flat slab joint shear bar positioned in a generally horizontal plane and lying longitudinally between the superimposed edge forms and extending longitudinally thereof, the superimposed wedge forms being engaged with opposite sides of the flat slab joint shear bar, wedge brackets positioned in superimposed stacked relation, the wedge brackets being attached to the edge forms in superimposed aligned relation with the flat slab joint shear bar being between the superimposed brackets, the wedge brackets providing superimposed wedge pockets, a stake located in the superimposed wedge pockets for ground embedment, a locator positioned between one of the edge forms and the shear bar for positioning the shear bar in a proper fixed position relative to the edge forms and leaving an inner edge projected inwardly a predetermined selected distance beyond the closed sides of

Abstract: A spreader clip assembly which is designed for use in connection with a concrete wall form and cooperates with a she-bolt on one end of a tie rod in preventing inward collapse of the adjacent side of a concrete wall form prior to pouring of wet concrete between the opposed form sides. A washer which is loosely and telescopically received over the she-bolt bears against the outer side of the adjacent form side and is clamped thereto by a nut, while an inverted J-shaped spreader clip proper which is captured on the washer is movable by a compound angular swinging and sliding action between a locking position wherein it straddles both the nut and washer and assimilates any tendency for inward collapse of the adjacent form side, and an out-of-the-way position wherein it exposes the nut for manipulating purposes.