Column form and clamp assembly

Claim 2

A column form and clamp means having generally upright form means defining a space for accommodating a concrete column, said form means having at least two sections movable from a form position to an open position relative to each other to remove the form means from the concrete column, at least one clamp means surrounding said form means to hold the form means in the form position and to permit movement of the form means to the open position, said clamp means including: first bar means and a second bar means, first corner means attachable to the first bar means and second bar means to fix said first and second bar means in a general right angle relationship relative to each other, third bar means and fourth bar means, second corner means attachable to the third and fourth bar means to fix said third and fourth bar means in a right angle relationship relative to each other, the first and second corner means each comprising a unit having a first side wall with a first enclosed passage through the first side wall accommodating one bar means and a second side wall disposed at an angle relative to the first side wall, said second side wall having a second enclosed passage through the second side wall accommodating another bar means, first clamp means securing the one bar means to the unit, second clamp means securing the other bar means to the unit, said first and second clamp means each having means to release the bar means whereby the position of the unit on the bar means can be changed making the clamp means useable with different column sizes, pivot means connecting the second bar means with the fourth bar means, and releasable fastening means connecting the first bar means with the third bar means.

Claim 3

The structure of claim 1 wherein: each corner means comprises a cube shaped unit having a first passage for receiving one bar means and a second passage disposed normal to the first passage for receiving the other bar means, and said first and second clamp means securing the unit to both bar means to fix the right angle relationship between the bar means.

Claim 4

The combination of claim 1 wherein: each of said bar means is an elongated, generally U-shaped member having inwardly turned lips along the open sides thereof.

Claim 5

The structure of claim 1 wherein: said releasable fastening means comprises a bracket secured to the third bar means, and a means attachable to the bracket to hold the first bar means in assembled relation with the bracket.

Claim 6

The structure of claim 4 wherein: said means attachable to the bracket is a bolt adapted to be threaded into a nut secured to the bracket.

Claim 7

The structure of claim 1 wherein: said first clamp means and second clamp means each comprise nut and bolt assemblies having nut disposed within a bar means and cooperating with said bar means to prevent rotation of the nuts, and bolts cooperating with the unit and threaded into the nuts to hold the bar means and unit in a selected adjusted position.

Claim 8

The structure of claim 1 wherein: each corner means comprises a cube-shaped unit having a first passage for receiving one bar means and a second passage disposed at an angle relative to thE first passage for receiving the other bar means.

Claim 9

The structure of claim 1 wherein: said first and second clamp means comprise nut and bolt assemblies having nuts disposed within the bar means and bolts cooperating with the clamp means and threaded into the nuts to hold the bar means and corner means in a selected adjusted position.

Claim 10

The structure of claim 1 wherein: each of said bar means is an elongated generally U-shaped member having inwardly turned lips along the open sides thereof, said first and second clamp means each comprising releasable separate nut and bolt assemblies operable to adjust the position of the corner means relative to the bar means associated with the corner means, each nut and bolt assembly having a nut disposed within a generally U-shaped member and having ribs which cooperate with the inwardly turned lips to prevent rotation of the nut and bolt threaded into the nut to hold the corner member in assembled relation with the U-shaped members associated with the corner member.

Claim 11

The structure of claim 1 wherein: each of said corner means is a cube-shaped unit having a top wall and a bottom wall joined to the first side wall and the second side wall.

Claim 12

The structure of claim 1 wherein: said first side wall and second second side wall are normally disposed relative to each other.

Claim 13

The structure of claim 1 wherein: said first clamp means and second clamp means each comprise releasable separate nut and bolt assemblies operable to adjust the position of the corner means relative to the bar means associated with the corner means so that the clamp means can be used with different column sizes by changing the position of the corner means relative to said bar means, each nut and bolt assembly having a nut disposed within a bar means and cooperating with the bar means to prevent rotation of the nut, and a bolt engageable with the corner means and threaded into the nut to hold the corner means in a selected adjusted position relative to the bar means.

Claim 14

A column form and clamp means having generally upright form means defining a space for accommodating a concrete column, said form means having at least two sections movable from a form position to an open position relative to each other to remove the form means from the concrete column, at least one clamp means surrounding said form means to hold the form means in the form position and to permit movement of the form means to the open position, said clamp means including: first bar means and a second bar means, first corner means attachable to the first bar means and second bar means to fix said first and second bar means in a general right angle relationship relative to each other, third bar means and fourth bar means, second corner means attachable to the third and fourth bar means to fix said third and fourth bar means in a right angle relationship relative to each other, said first and second corner means each comprising a cube-shaped unit having a first passage for receiving one bar means and a second passage disposed at an angle relative to the first passage for receiving the other bar means and clamp means releasably securing the unit to both bar means, said clamp means securing the unit to both bar means being adjustable whereby the position of the corner means on the first and second bar means can be changed making the clamp means useable with different column sizes, said clamp means having nut and bolt assemblies with nuts disposed within the bar means and cooperating with said bar means to prevent rotation of the nuts, and bolts cooperating with the clamp means and threaded into the nuts to hold the bar means and corner means in a selected adjusted position, pivot means connecting the second bar means with the fourth bar means, and releasable fastening means connecting the first bar means with the third bar means.

Claim 15

A column form and clamp means having generally upright form means defining a space for accommodating a concrete column, said form means having at least two sections movable from a form position to an open position relative to each other to remove the form means from the concrete column, at least one clamp means surrounding said form means to hold the form means in the form position and to permit movement of the form means to the open position, said clamp means including: first bar means and a second bar means, first corner means attachable to the first bar means and second bar means to fix said first and second bar means in a general right angle relationship relative to each other, third bar means and fourth bar means, second corner means attachable to the third and fourth bar means to fix said third and fourth bar means in a right angle relationship relative to each other, said first and second corner means each comprising a cube-shaped unit having a first passage for receiving one bar means and a second passage disposed at an angle relative to the first passage for receiving the other bar means and clamp means releasably securing the unit to both bar means, said clamp means securing the unit to both bar means being adjustable whereby the position of the corner means on the first and second bar means can be changed making the clamp means useable with different column sizes, said clamp means having nut and bolt assemblies with nuts disposed within the bar means and cooperating with said bar means to prevent rotation of the nuts, and bolts cooperating with the clamp means and threaded into the nuts to hold the bar means and corner means in a selected adjusted position, pivot means connecting the second bar means with the fourth bar means, and releasable fastening means connecting the first bar means with the third bar means.

Claim 16

The structure of claim 13 wherein: each corner means comprises a cube-shaped unit having a first passage for receiving one bar means and a second passage disposed normal to the first passage for receiving the other bar means, and means securing the unit to both bar means to fix the right angle relationship between the bar means.

Claim 17

The structure of claim 13 wherein: each of said bar means is an elongated, generally U-shaped member having inwardly turned lips along the open sides thereof.

Claim 18

The structure of claim 13 wherein: said releasable fastening means comprises a bracket secured to the third bar means, and a means attachable to the bracket to hold the first bar means in assembled relation with the bracket.

Claim 19

The structure of claim 16 wherein: said means attachable to the bracket is a bolt adapted to be threaded into a nut secured to the bracket.