| 摘要 |
496,132. Ventilator regulators. HOCKLY, F. B. ASHTON-. May 24, 1937, No. 14386. [Class 20 (iii)] A regulator for a pivoted ventilator comprises a sliding bolt 1 working in guides 9 on the frame and a tubular slotted link connecting the bolt to a cleat 11 on the ventilator. Under the action of a spring 5 and plunger 6. The sliding bolt is locked by turning the handle 14 into recesses 18 in the guide corresponding to open and shut positions. The projection 11 is fastened to the slotted link by a key and washer. The link enters a guide 10 when the ventilator is closed. The handle 14 is fixed to a short rod in the bolt 1 and projects through a slot. |
