GB190615559A - Improvements in Carding Engines - Google Patents

Abstract

15,559. Witham Bros., and Lord, J. July 10. Guards, controlling by movable parts of machinery.-Relates to the mechanism described in Specification No. 26,010, A.D. 1905, for locking the cylinder cover of a carding-engine so as to prevent it from being opened while the belt is on the fast pulley, and consists in providing means to prevent the cover from being opened until the moving parts of the carding-engine have actually come to rest. Surrounding the locking-stud e is a sleeve f on which is adjustably mounted a lever i carrying a finger or catch j shown resting on a strip of metal secured to the pedestal m. A leg i<3> working in a slot in the strip of metal serves to steady the sleeve and its connexions. When the pin e is pushed into the slot in the arm b, it carries the sleeve f with it, and the catch j slides over the metal strip l and falls into the position shown in dotted lines. Projections o, secured to the end of the cylinder n and a projection l<1> extending backwards, prevent the catch j from being raised during the rotation of the cylinder. The belt-fork may therefore be moved to shift the belt from the fast to the loose pulley but the cover is kept locked until the cylinder comes to rest, when the catch j may be raised, the sleeve f drawn out of the slot in the arm b, and the cover opened as usual. As shown in Fig. 4, the stud e is secured to an extension of the belt-fork d and the arm i works in a slotted bracket k. The catch j, which rests on the framework p when the machine is idle, has a projection j<1> which limits its motion. The door a is locked by the sleeve f which engages a slot c in a finger b attached to the door. A blank or lug q<1> connected to a lever q is brought into the track of the stud e and sleeve f when the cover is opened, thus preventing the movement of the belt from the loose to the fast pulley. When the door is closed, the lug q<1> is pushed into the position shown in dotted lines. In Fig. 5 an arrangement is shown in which the sleeve f is dispensed with. The stud e is made integrally with a cross-piece t, adapted to slide on the shaft or spindle t<1> upon which the belt fork slides. An arm u, also integral with the cross-piece t, carries the lever i to which is attached the catch j. A lug q' prevents the movement of the belt on to the fast pulley when the cover is open as before. According to the Provisional Specification, the catch j may be maintained in its lower position by notches or projections in the flange of the fast pulley or other suitable disk or wheel.