Wireworking – Joining wire – Electric welding
Patent
1980-07-29
1983-02-08
Weidenfeld, Gil
Wireworking
Joining wire
Electric welding
219 56, 228173E, B21F 1508, B21F 2710
Patent
active
043723500
ABSTRACT:
A lattice girder making machine has a stepwise feed mechanism for upper and lower chord wires; and a continuously operating bending mechanism for bending wire into zigzag strutting which is welded to the chord wires at a welding station. Between the bending mechanism ad the welding station the zigzag strutting slides along guides which allow the strutting alternately to contract resiliently and then to expand to accommodate the stepwise advance through the welding station. At the welding station the strutting is held at the required extension by fingers.
REFERENCES:
patent: 2899537 (1959-08-01), Grebner
patent: 3487861 (1970-01-01), Fahrenbach
patent: 4291732 (1981-09-01), Artzer
Ritter Gerhard
Ritter Josef
Ritter Klaus
Schmidt Gerhard
EVG Entwicklungs-und-Verwertungs Gesellschaft mbH
Marmorek Ernest F.
Silverberg Fred A.
Weidenfeld Gil
LandOfFree
Machine for the automatic production of welded lattice girders does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Machine for the automatic production of welded lattice girders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Machine for the automatic production of welded lattice girders will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-44511