The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 1977
Filed:
Dec. 04, 1974
Robert Lyndon Bratchell, Ottoway, AU;
Concrete Industries (Monier) Limited, Ottoway, AU;
Abstract
A method of moulding concrete ties or other similar articles having pre-stressed reinforcing wires or rods therein, wherein a series of open ended multi-cavity moulds of similar cross-sectional shape are aligned end to end in groups, wires are positioned in the aligned cavities of the moulds and are tensioned, the wires are separated from one another and into horizontal rows in each group by flat sided bar like spacers which are interposed between the ends of adjacent moulds of that group, while the groups themselves are separated by vertically movable spacer plates each having vertically extended slots which arrange the wires into vertical rows. The wet mix of concrete is then discharged into the moulds to surround the reinforcing wires, and after initial set of the concrete the flat sided bar like spacers are withdrawn laterally while the vertically slotted spacer plates are depressed downwardly, and the wires thus exposed between the adjacent moulds and also between the adjacent groups are severed by a driven cutter disc of abrasive material.