Abstract: A cigarette packing machine has a first drive normally transmitting motion to packing units which are employed to advance a series of arrays of cigarettes or other rod-shaped articles of the tobacco processing industry and to confine each array in a discrete packet by providing each of successive arrays of the series with one or more envelopes, labels and the like. The first drive is decelerated and brought to a halt in the event of malfunctioning of one or more packing units of the machine and/or for other reasons, and this initiates or prevents an interruption of operation of at least one second drive which transmits motion to one or more packing units during deceleration and/or during a period following stoppage of the first drive. The second drive(s) causes or cause the respective packing unit(s) to complete operations which, if not carried out prior to restarting of the first drive, would entail the making of numerous defective packets.

Abstract: Blocks of plain or filter cigarettes are accumulated in at least two group building assemblies each of which comprises at least two block forming units receiving cigarettes by gravity flow by way of upright ducts. The assemblies are adjacent the path of a series of successive receptacles which serve to transport discrete blocks stepwise to a multiple-track packing machine. The units accumulate blocks of cigarettes during intervals which include the duration of at least one stepwise movement of the receptacles and that of at least one period of standstill of the receptacles. Such intervals suffice to ensure satisfactory gathering of cigarettes into blocks of required size and shape at a frequency which is required for full-speed operation of the multiple-track packing machine.

Abstract: Blocks of plain or filter cigarettes are accumulated in at least two group building assemblies each of which comprises at least two block forming units receiving cigarettes by gravity flow by way of upright ducts. The assemblies are adjacent the path of a series of successive receptacles which serve to transport discrete blocks stepwise to a multiple-track packing machine. The units accumulate blocks of cigarettes during intervals which include the duration of at least one stepwise movement of the receptacles and that of at least one period of standstill of the receptacles. Such intervals suffice to ensure satisfactory gathering of cigarettes into blocks of required size and shape at a frequency which is required for full-speed operation of the multiple-track packing machine.

Abstract: Discrete cigarettes or layers of parallel cigarettes which are being propelled by a reciprocable pusher from the magazine into successive receptacles of an indexible conveyor in a cigarette packing machine are prevented from moving away from a stationary stop at the station where the receptacles receive discrete cigarettes or layers of cigarettes. This is accomplished by the provision of a stationary or mobile blocking device which does not (or does not appreciably) interfere with the propulsion of cigarettes into a receptacle but invariably prevents a rebounding of cigarettes as a result of impingement upon the stationary stop. The blocking device can be provide with a stationary or a mobile shoulder at the path of cigarettes, or with a lever which can be rocked behind the cigarette or cigarettes in a recepacle and from the path of oncoming fresh cigarette or cigarettes.