Apparatus for forming plastic locking inserts in nuts

Claim 1

A MACHINE FOR MOLDING A PLASTIC INSERT IN A RECESS IN A NUT ABOUT THE BOLT RECEIVING APERTURE THEREIN THROUGH AN INJECTION APERTURE IN A SIDE OF SAID NUT, COMPRISING A MOLD FORMED OF STATIONARY AND MOVABLE SECTIONS, MEANS FOR MOVING SAID MOVABLE SECTION BETWEEN OPEN AND CLOSED POSITION RELATIVE TO SAID STATIONARY SECTION, SAID STATIONARY MOLD SECTION COMPRISING A RUNNER BLOCK, HAVING A SIDE WALL FORMING ONE SIDE OF A GUIDEWAY FORMED WITH A PLURALITY OF SPACED INJECTION NOZZLES OPENING IN LONGITUDINAL RELATION ALONG SAID SIDE WALL, AND A LOCATING MEMBER MOVABLE TRANSVERSELY RELATIVE TO SAID RUNNER BLOCK FORMING AN ADJACENT SIDE OF SAID GUIDEWAY ALONG SAID SIDE WALL, SAID MOLD SECTIONS BEING FORMED WITH REGISTERING CHANNEL PORTIONS IN OPPOSED FACES THEREOF CLOSED IN THE CLOSE POSITION OF SAID MOLD SECTIONS FOR PASSAGE OF PLASTIC MATERIAL THERETHROUGH, SAID MOVABLE MOLD SECTION FORMING A PORTION OF SAID GUIDEWAY OPPOSED TO SAID LOCATING MEMBER, MEANS FOR FEEDING A PLURALITY OF NUTS EQUAL IN NUMBER TO NUMBER OF INJECTION NOZZLES INTO SAID GUIDEWAY ALONG SAID LOCATION MEMBER AND MOLD SIDE WALL WHILE SAID MOVABLE MOLD SECTION IS IN OPEN POSITION, SAID MOVABLE MOLD SECTION ENGAGING SAID NUTS IN SAID GUIDEWAY IN CLOSED POSITION AND COOPERATING WITH SAID LOCATING MEMBER IN LOCATING SAID INJECTION APERTURE IN SAID NUTS IN ALIGNED RELATION WITH SAID INJECTION NOZZLES, MEANS CARRIED BY SAID MOLD SECTIONS ENGAGING AND MOVING SAID NUTS ALONG SAID SIDE WALL AND LOCATING MEMBER TO REGISTER SAID INJECTION APERTURES WITH SAID INJECTION NOZZLES, HOLDING MEANS OPERATED BY SAID MOVABLE MOLD SECTION IN CLOSED POSITION TO ENGAGE AND HOLD THE NUTS IN SAID GUIDEWAY WITH THE SURFACE PORTIONS ADJACENT SAID INJECTION APERTURES IN TIGHT ENGAGEMENT WITH SAID SIDE WALL ABOUT SAID INJECTION NOZZLES, AND MEANS FOR INJECTING PLASTIC MATERIAL THROUGH SAID CHANNEL PORTIONS SAID INJECTION NOZZLES INTO SAID INJECTION APERTURE, AND RECESSES IN SAID NUTS.