Externally controlled spreader system
OwnerDusan Tausanovitch, Peter R. Lovisa +1inventors
InventorsDusan Tausanovitch, Peter R. Lovisa, Tullio E. Lovisa
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Abstract
An externally controlled spreader system is designed for the adjustment of forms in both lateral directions and includes a nut having a continuous circular notch on its exterior surface which cooperates with a slotted hole in a slidable plate externally mounted on a washer which is connected to the forms. The nut is adapted to be coupled with the threaded end of a tie rod to apply an axial force, and in this manner the forms are moved laterally in the desired direction while being maintained at a selected predetermined distance apart.
Claims15
An exterior spreader system for a threaded end tie rod to provide for controlled adjustment of concrete forms in both directions lengthwise of the tie rod, comprising:
- a. nut means internally threaded for engagement with the adjacent end of the tie rod, said nut means having an inner end and other end and having a groove in the side thereof defined partly by a flange at the inner end;
- b. a plate washer assembly incuding a washer adapted to be secured to a form and including a slidable plate slidably coupled to the exterior of the washer and defining therewith a recess, the plate having a through hole receiving the flange therethrough for disposition within the recess, the plate being shiftable from a first disengaged position at which the flange is adapted to be inserted through the through hole into the recess and a second locked position at which the flange is locked within the recess and consequently the nut means is locked relative to the plate-washer assembly by the disposition of surfaces of the plate within said groove establishing a driving relation between said nut means and said plate-washer assembly;
- and
- c. whereby threaded movement of said nut means on the tie rod will be transmitted through said flange and said plate-washer assembly to the form to which said washer is secured.
A plate-washer assembly for securement to forms for concrete and for releasably coupling with cooperating parts of an exterior spreader system which includes a nut means cooperating with a threaded end tie rod, the nut means including an inner end and an outer end having a groove in the side thereof defined partly by a flange at the inner end, the spreader system permitting adjustment of the concrete forms in both lateral directions and for a selected series of predetermined different wall thicknesses, the assembly includes a washer and a plate shiftably connected with the washer, the washer adapted to be coupled to the walers of the forms, the slidable plate slidably coupled to the exterior of the washer and defining therewith a recess, the plate having a through hole sized to receive the flange therethrough for disposition within the recess, the plate being shiftable from a first disengaged position at which the flange is adapted to be inserted through the hole into the recess and a second locked position at which the flange is locked within the recess and consequently the nut means is locked relative to the plate-washer assembly by the disposition of surfaces of the plate within said groove establishing a driving relation between said nut means and said plate-washer assembly, whereby threaded movement of said nut means on the tie rod will be transmitted through said flange and said plate-washer assembly to the form to which said washer is secured.
Dependencies are inferred from the claim text.