Abstract A building wall forming apparatus for constructing a complete room or building section in monolithic form. The apparatus, which is of unitary construction, includes spaced inner and outer wall means supported on a common framework with the volume between the wall means being adapted to receive a cementatious material. The ceiling is defined by an upper plate supported above the inner wall means in contacting relation therewith. The inner wall means also includes inner corner wall means. Both the inner wall means and inner corner wall means are fixedly connected to cam-operated actuator units, there being an actuator unit disposed at each interior corner of the apparatus. The actuator units are hydraulically operated to cause simultaneous retraction of the inner wall means and the inner corner wall means pivotally about their corner edges. Similarly, the outer wall means are operatively connected in movable manner to support sections, the support sections being adapted to expand or move outwardly by operation of hydraulic pistons. After pouring and curing of the cementatious material, the inner wall means and inner corner wall means are retracted by the cam operated actuator units and the outer wall means are expanded by operation of the hydraulic pistons, thereby permitting removal of the monolithic cementatious body from the apparatus. Due to the unitary construction of the apparatus and consequent portability, it may be moved from one job site to another both quickly and easily.
Apparatus for constructing a room or building section from cementatious material, comprising: a. a portable base means; b. an expansible outer form comprising vertically disposed side and end walls supported in said base means for lateral movement; c. fluid pressure-operated means mounted on the base means operable to effect said lateral movement of said side and end walls; d. an inner form supported on said base means in concentric spaced relation to said outer form and comprising: i. vertically disposed side and end walls having means pivotally securing their lower ends to the base means for angular movement to and from vertical positions; and ii. generally triangular corner sections having means pivotally securing their lower ends to said base means for angular movement to and from vertical positions interfitting between adjacent edges of the inner form side and end walls; and e. fluid pressure-operated retractor means mounted on the base having connections to the inner form side and end walls and corner sections for effecting said angular movement, said retractor means constructed and arranged to effect said angular movement of said corner sections in advance of said end and sidewalls.
Claim 2
Dependent Claim
190 words
Apparatus for constructing a room or building section from cementatious material, comprising: a. a portable base means; b. an expansible outer form comprising vertically disposed side and end walls supported in said base means for lateral movement; c. fluid pressure-operated means mounted on the base means operable to effect said lateral movement of said side and end walls; d. an inner form supported on said base means in concentric spaced relation to said outer form and comprising: i. vertically disposed side and end walls having means pivotally securing their lower ends to the base means for angular movement to and from vertical positions; and ii. generally triangular corner sections having means pivotally securing their lower ends to said base means for angular movement to and from vertical positions interfitting between adjacent edges of the inner form side and end walls; and e. fluid pressure-operated retractor means mounted on the base having connections to the inner form side and end walls and corner sections for effecting said angular movement, said retractor means constructed and arranged to effect said angular movement of said corner sections in advance of said end and sidewalls.
Claim 3
Dependent Claim
44 words
The apparatus of claim 1 including a ceiling plate supported on said base means above said inner form to cover the area defined thereby and sealingly engageable by the upper ends of the end and sidewalls and corner sections when in their vertical positions.
Claim 4
Dependent Claim
111 words
The apparatus of claim 2, wherein said retractor means comprises: a. a hollow post member vertically disposed on said base means interiorly of each of said corner sections; b. an actuator shaft vertically slidable in each said post member; c. wall actuator linkages extending at right angles to each other from the post member to points on the adjacent side and end walls; d. an additional actuator linkage extending to said corner section on a plane bisecting the angle between said wall actuator linkages; and e. cam means interposed in the respective actuator linkages formed to effect angular movement of said corner sections in advance of said side and end walls.
Claim 5
Dependent Claim
67 words
The apparatus of claim 1 wherein said outer form includes: a. vertically disposed, spaced apart beams secured to the respective side and end walls; b. cross beams secured to the lower ends of said vertical beams and slidably mounted on the base means for movement at right angles to said side and end walls; and c. means operatively connecting said cross beams to said fluid pressure-operated means.