A New Door Opener.

A New Door Opener.

Walter Bouse, an engineer in the Seattle (Wash.) Fire Department, has patented a new door opener. The Bragg patent for opening the doors expired last February, and, although Bouse had received word from the patent office that his contrivance was not an infringement. Corporation Counsel Donworth thought best to wait until the law had settled the matter conclusively . By the Bragg machine the doors were opened after the first tap on the bell, but by House’s contrivance the doors are opened on the back stroke of the hammer and the horses are coming out of the stalls before the firemen or people in the city have heard the first sound of the bell.

乍看之屋的户外开启者看起来很复杂，但在仔细检查时，操作看起来很简单。长黄铜杆在主地板上指示灯的锣上运行，隐藏的末端调整为发声锤，当抛出第一个行程时，击中末端并将其移动到八分之一英寸。在杠杆的门端处是杆，其以直角延伸并保持另一个杠杆，该杠杆平行于一键捕获的110101件的第一杆。超出支点的四英寸上述杠杆永久性地与长杆连接，长杆连接到下端和上端的重量，低于门的顶部水平，是镜头的铁臂像“V”一样这些臂与黄铜杆连接，沿着门的顶部运行，并且又与弹簧连接，弹簧保持闭门。