Sleeve 1 is keyed to driving shaft 7 which rotates continuously clockwise about fixed axis A. Pawl 2 is pivoted on sleeve 1 by turning pair B, and is brought into engagement with ratchet wheel 3 by spring 6. Wheel 3 is rigidly attached to sprocket 4 which drives conveyer chain 5. The wheel and sprocket are freely mounted on shaft 7. As it rotates with sleeve 1, pawl 2 runs against fixed pin b and is forced out of engagement with wheel 3 and sprocket 4 together with chain 5 dwells as long as surface a-a of pawl 2 slides along pin b. When pawl 2 passes the pin, it engages the next tooth of wheel 3. This mechanism is applied in conveyers in which the dwell is used to load the conveyer.
$2745$RG,D$