Calibrated resistance-thermometers and the like

Claim 1

A TEMPERATURE-COMPENSATED RESISTANCE-THERMOMETER ASSEMBLY COMPRISING A PROTECTIVE CASING HAVING A CLOSED END, MEANS FOR SEALING THE OTHER END OF SAID CASING COMPRISING A HEADER HAVING AT LEAST THREE FEED-THROUGH TERMINALS, A MULTI-FOLDED LOOP OF WIRE FORMING A PLUG SNUGLY FITTING WITHIN SAID CASING AND WITH ONE END THEREOF ENGAGING THE CLOSED END OF SAID CASING, A SHORT APERTURED INSULATOR WITHIN SAID CASING AND ENGAGING THE OTHER END OF SAID FOLDED WIRE PLUG, A LONG APERTURED INSULATOR EXTENDING INWARDLY FROM SAID OTHER END OF THE CASING, A SPACER SLEEVE BETWEEN SAID INSULATORS, SAID MULTI-FOLDED LOOP HAVING INTEGRAL LEADS EXTENDING THROUGH SAID APERTURED INSULATORS AND SAID SPACER SLEEVE TO SAID HEADER AND THERE CONNECTED TO ONE PAIR OF SAID TERMINALS, ONE OF SAID LEADS HAVING SLACK WITHIN THE SPACER SLEEVE FOR ADJUSTMENT OF THE TOTAL RESISTANCE OF SAID MULTI-FOLDED LOOP AND ITS LEADS, AND A TEMPERATURE-COMPENSATING LOOP WITHIN SAID SPACER SLEEVE HAVING INTEGRAL LEADS EXTENDING THROUGH SAID LONG INSULATOR TO SAID HEADER AND THERE CONNECTED TO ANOTHER PAIR OF SAID TERMINALS, ONE OF SAID LEADS HAVING SLACK WITHIN THE SPACER SLEEVE FOR ADJUSTMENT OF THE RESISTANCE OF SAID COMPENSATING LOOP INCLUDING ITS LEADS TO EQUAL THE RESISTANCE OF THE LEADS FROM SAID MULTI-FOLDED LOOP.