Patent GB-494825-A (GB)
Title: Improvements in and relating to tubular conveyor systems employing travelling containers
IPC: B65G51/42
Filed: 1938-05-02
Abstract: 494,825. Pneumatic dispatch - apparatus. TELEPHON-APPARAT-FABRIK E. ZWIETUSCH & CO. GES. May 2, 1938, No. 13054. Convention date, Aug. 7, 1937. [Class 78 (i)] In a conveying system in which the setting of the junctions is effected by adjustable members on the travelling container, the first junction which is traversed has associated with it control means which by means of the reversing keys of the receiving stations which are unattended, or by the settings characteristic of non - existing stations, become operative over the setting path which is set up when interpreting the container destination and determine the travel of the container to a different station. In a tube diagram, Fig. 1, a number of sending stations S1, S2, S3 are shown delivering to a common sender group travel tube SA, and a number of such group travel tubes SA, SB, SC leading to a funnel Tr which directs the carriers into the group junction GW. The outlets from the junction are connected to the receiver group travel tubes EA, EB, EC which lead to the individual receiver stations A1 .. A5, B1 .. B3, and C1 .. C4. If necessary a control station TA, TB, TC consisting in known manner of a separating device and an interpreting device is inserted in each tube. A control station provided at the end of the tubes SA, SB. SC. before the point of delivery to the junction GW consists of a separating device comprising magnets HM, KM and interpreting members Ab. A circuit diagram is shown in Fig. 2, for a system in which the control of the multiple junction and of the individual junctions is effected from a common control station, and in which the carriers intended for a receiving station which is not in use, &c., are sent to station C3. Each carrier has rotatable rings R1, R2, the former carrying the letter characteristic A.. H for the tubes EA, EB, EC, and the latter the numeral characteristic 1 .. 8 for the individual stations. Metal rings r1, r2, r3 are secured on the ring R1, and similar rings r4, r5, r6 on the ring R2. These rings can be brought into connection with the current supply ring O in different combinations. When a container despatched from one of the stations S1, S2, S3 arrives at the control station, the preparatory contact vk is closed, and the interpreting magnet AM, Fig. 2, is energized by which the interpreting members Ab are urged against the contact rings O and r1 .. r6. A rotary contact disc Un is provided in the energizing circuit for the magnets AM in order that the magnets of the individual sender group travel tubes may be energized in succession and so prevent interruptions if carriers are at the control stations in each tube. The relay H is energized at the same time, and in accordance with the destination setting of the carrier, the interpreting relays U .. Z are energized in a particular combination. Two contact pyramids, viz. a letter pyramid Bu and a numeral pyramid Za, each with eight outlets, are formed from the contacts of these interpreting relays. Since there are only three tubes SA, SB, SC, only three outlets are provided at the pyramid Bu to which the relays A, B and C are connected. By means of these relays, the junction GW is set so that the carrier is directed into the tubes EA, EB, EC, respectively. The unemployed outlets of this pyramid are connected to the relay N. If, e.g. the station A4 is to be left unattended, the operator throws over the reversing key AT4 at this station. When a carrier intended for this station arrives at the control station, the magnet AM and relay H are energized, and the relays U, V, W and X are energized in accordance with the setting of the carrier. Relay A is energized by way of the contacts h, 1u, 9v and 1w, and the pyramid Za is connected by way of contacts 1a ... 8a. Since the reversing key at AT4 has been thrown over, relay Ma1 is energized through the contacts h, 2ma, 2mb, n, 1x, 1y, 2z, 4a, AT4 and Mal. By means of the contact 1ma, the relay A is disconnected and the relay C is energized. The latter positions the junction GW to the track EC. Relay C holds up over its own contact 9c and travel contact EC. Relay C3 is energized by way of contact 3ma and sets the junction at station C3 for departure. Thus the carrier is discharged at that station. If the carrier has been set for a non- existing station, when the destination setting is interpreted by way of the pyramid Bu, relay N is energized and through its contact ln effects energization of the relay C so that the junction GW is set to the track EC. The Specification describes also a system for heavier traffic in which is provided behind the multiple junction in the receiver group travel tube, a further control station from which the setting of the individual receiver junction is effected.