Abstract: In order to shape the necks of glass tubes (1) on glass processing machines, use is made of a device with two shaping tools, one of which takes the form of a ring (3) surrounding the glass tube (1) and the other shaping tool consisting of a roller (2).

Abstract: In a holding chuck (3) for tubes of glass-working machines, clamping jaws (7) which are guided in a basic body (5) and have, at their ends, plates (9) provided with a bore for receiving a ball (12) are used. Each ball is guided in a bore (14) in a thrust ring (13), whilst the plates (9) are additionally guided in slots (15) of the thrust ring (13).

Abstract: In an apparatus for shaping the neck of small glass bottles (28) produced from tubes, shaping rollers (14, 15) are arranged on a guide mount (5) which can execute a movement parallel to the longitudinal axis (29) of the glass bottles (28) and which affords the possibility of combining the rolling movement with a drawing movement during the shaping of the neck (27) of the glass bottle (28), in order thereby to prevent adverse accumulations of material.

Abstract: For the purpose of feeding glass tubes (2) to a glass-processing machine, use is made of an appliance which essentially comprises a glass-tube magazine (1), a separating unit (17), and an endless conveyor (25), the latter being fitted with feeding tongs (23). Individual glass tubes (2) are supplied to the feeding tongs (23) by the separating unit (17). The glass-tube magazine (1) can be loaded with a bundle of glass tubes.

Abstract: The invention relates to a machine for working glass tubes, with several chucks circulating on a common axis and sweeping past several processing stations, there being mounted above each chuck a stepwise rotating magazine storing several glass tubes, each tube resting by its lower end on a non-rotating supporting plate which has a hole for the glass tubes to fall through for engagement by the chuck therebelow, the machine having a switch which causes the magazine to rotate, one step at a time, each step corresponding to the distance between two neighbouring tubes, in order to bring the next glass tube to the hole, and wherein between the hole of the supporting plate and the chuck therebelow there is a mobile arrestor blade which allows the magazine to rotate stepwise without a tube falling through the hole, until the chuck is empty, whereupon the blade can disengage so that it no longer blocks the hole.

Abstract: The invention relates to a machine for making containers from glass tubes, with several chucks circulating through a succession of processing stations, each chuck having jaws to grip a glass tube or container, and with the chucks being brought successively to a position in which they are superposed above a stationary supporting plate at at least one processing station, this plate being for limiting downward movement of the length of tube which falls downwards through the chuck, wherein the chucks move up and down on at least one circulating column, the processing station which has the supporting plate being equipped with a senser which triggers a releasing device which releases the chuck which has reached this station, so that it moves downwards, the senser responding to the absence of a tube above the upper surface of the jaws of the chuck by initiating downward movement of the chuck.

Abstract: The invention relates to a machine for manufacturing phials, ampoules or the like from thermoplastic substances, in particular glass, having a number of holders capable of rotating around their own axes and around a central axis, which are distributed around the circumference of the machine and are supported on a frame in the nature of a turntable, whose axis of rotation constitutes the central axis. The holders are mounted on segment-like carriers which together form a cylinder, and which are fastened to a support ring mounted on part of a ball race.