Claims
- 1. A tie bar for use with forms for forming a wall of a pourable, settable material comprising a bar and two moulded members;
- said bar including two stress concentrating notches, a central portion between said two stress concentrating notches and two end portions,
- said wherein said moulded members are moulded to said central portion of said bar and comprise a body portion and a flange portion extending radially outwardly from said body portion whereby reinforcing rod may be positioned against said body portion and said flange portion,
- said tie bar comprising two moulded spacer portions each having a flat distal facing surface adapted to bear against one of said forms and to positively locate said form with respect to said tie bar;
- said spacer portions and moulded members together positively locating a reinforcing rod positioned against said body and flange portion with respect to the surface of said wall.
- 2. A tie bar for use with forms for forming a wall of a pourable, settable material comprising a bar and two moulded members;
- said bar including two stress concentrating notches, a central portion between said two stress concentrating notches and two end portions.
- and wherein said moulded members are moulded to said central portion of said bar and comprise a body portion and a flange portion extending radially outwardly from said body portion whereby reinforcing rod may be positioned against said body portion and said flange portion,
- and wherein each of said moulded members comprises a reinforcing rod positioning portion and an integral spacer portion, said spacer portion having a stress concentrating notch therein to facilitate fracture of said moulded material,
- each said integral spacer portion comprising a flat distal facing surface adapted to bear against one of said forms and to positively locate said form with respect to said tie bar, said spacer portions and moulded members together positively locating a reinforcing rod positioned against said body and flange portion with respect to the surface of said wall.
- 3. The tie bar of claim 2 wherein said moulded member comprises a plurality of ribs adapted to be embedded in said settable material,
- and wherein said bar comprises flattened portions at the said central portion where said moulded members are moulded to said central portion,
- and wherein said central portion of said bar comprises a flattened portion adapted to be embedded in said settable material.
- 4. The tie bar of claim 3 wherein said stress concentrating notches of said bar are located within the reinforcing rod supporting portion whereby upon fracture and removal of said end portions of said bar said moulded member comprises a cylindrical bore for insertion and retention of a plug.
- 5. The tie bar of claims 2, 3 or 4 wherein the reinforcing rod is tied to at least one of said moulded members.
- 6. A tie bar for use with forms for forming a wall of a pourable settable material comprising a bar and two moulded members;
- said bar including two stress concentrating notches, a central portion between said two stress concentrating notches and two end portions;
- and wherein said moulded members are moulded to said central portion of said bar and comprises a body portion and at least two flanges extending outwardly from said body portion and having a groove in said body portion between said flanges whereby reinforcing rod may be positioned between said flanges,
- said tie bar further comprising two moulded spacer portions each having a flat distal facing surface adapted to bear against one of said forms and to positively locate said form with respect to said tie bar, said spacer portions and moulded members together positively locating a reinforcing rod positioned between said flanges with respect to the surface of said wall.
- 7. The tie bar of claim 6 wherein said moulded members comprise a plurality of ribs adapted to be embedded in said settable material,
- and wherein said bar comprises flattened portions at the said central portion where said moulded members are moulded to said central portion,
- and wherein said central portion of said bar comprises a flattened portion adapted to be embedded in said settable material.
- 8. The tie bar of claim 7 wherein each moulded member comprises a boss at the outwardly portion thereof, which boss includes a hollow inner compartment,
- and wherein each of said stress concentrating notches is located within said compartment of each of said moulded members respectively.
- 9. The tie bar of claim 8 further comprising two frusto-conical spacers mounted on said end portions of said bar with the greater diameter of said spacers extending toward the tips of said end portions and the angle of said cone of said spacer and the minor diameter chosen such that said cone may extend into said compartment whereby settable material may not flow into said compartment when said spacer contacts said moulded member.
- 10. The tie bar of claim 9 wherein said body portion of each of said moulded members comprises a groove having a cross-section of two circular curves.
- 11. The tie bar of claims 8, 9 or 10 wherein a reinforcing rod is tied to at least one of said moulded members.
- 12. The tie bar of claim 7 wherein each of said moulded members comprises a reinforcing rod positioned portion and an integral spacer portion,
- and wherein each of said moulded members comprises a reinforcing rod positioning portion and an integral spacer portion, said spacer portion having a stress concentrating notch therein to facilitate fracture of said moulded material.
- 13. The tie bar of claim 12 wherein said stress concentrating notches of said bar are located within the reinforcing rod supporting portion whereby upon fracture and removal of said bar said moulded member comprises a cylindrical bore for insertion and retension of a plug.
- 14. The tie bar of claim 13 wherein said body portion of each of said moulded members comprises a groove having a cross-section of two circular curves.
- 15. The tie bar of claim 12, 13 or 14 wherein a reinforcing rod is tied to at least one of said moulded members.
Parent Case Info
This application is a continuation-in-part of application Ser. No. 34, filed Jan. 2, 1979 and now abandoned.
US Referenced Citations (5)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
34 |
Jan 1979 |
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