baber/WOPTO huggingface dataset:
Patent GB-1230919-A (GB)
IPC: B65G47/54
Filed: 1969-05-16
Abstract: 1,230,919. Roller conveyers. FLUGHAVEN FRANKFURT AM MAIN A.G. 16 May, 1969 [23 Aug., 1968], No. 25034/69. Addition to 1,230,916. Heading B8A. Roller conveyers 140, 141 have transfer assemblies 120, 120<SP>1</SP> each consisting of a frame 121 raisable by a parallel linkage such that wheels 122 of the assemblies 120, 120<SP>1</SP> may engage pallets normally supported on the conveyers 140, 141. A belt conveyer 132 may receive the pallets from the conveyer 140. Wheels 2 and 122 are driven by V-belts and, although wheels 126 are shown undriven, they may be driven if the spacing between the conveyers were greater. Assuming pallets 18 are to be transferred from the conveyer 140 to conveyer 141, when a pallet engages a switch 138, the assembly 120 is raised by action of an electromagnet 128 and the pallet is transferred to the raised assembly 120<SP>1</SP>. Engagement of a switch 139 then causes this assembly to be lowered and the pallet is carried away on the conveyer 141. A member 130<SP>1</SP> of a horizontally pivoted fork 136 pivots about a shaft 170 to allow the transfer to take place. For discharging the pallets on to the belt conveyer 132, the switch 138 may be arranged to cause the fork 136 to pivot on its horizontal shaft 137 and lift a pallet to deposit luggage 131 on the conveyer. In Figs. 3, 4 (not shown) luggage (131<SP>1</SP>) is fed by a belt conveyer (132<SP>1</SP>) into a pallet (18) supported on the transfer assembly (120). A switch (171) causes lowering of the assembly and the pallet is moved away from the conveyer (1401). The luggage handling system shown in Figs. 5, 6, includes roller conveyer tracks SE 1 , SE 2  for pallets carrying luggage to be manually transferred to containers E 1 -E 4 ; containers U 1 , U 2  for luggage to be transferred to pallets on tracks SU 1 , SU 2 ; and conveyer belts 145 for delivery of luggage to containers E 1 -E 4 . Luggage on tracks SE 1 , SE 2  may be diverted on to branch lines AW 1 -AW 4 , e.g. pallets on line AW 2 , and are unloaded at a point II having been received on transfer assemblies 120. The empty pallets are then sent along lines AW 3 , AW 4  to a stacking line 142 comprising stackers S 1 -S 4  and more transfer assemblies 120. After transfer to lifts A 1 , A 2 , the pallets are moved to stand-by lines 152 whence they are taken, as required, through unstacking devices P 1 , P 2 , along tracks 143, 145, to elevators 167 and loading stations V, V1. From there they pass along lines SU 1 , SU 2  into line SU. Some of the stacked pallets may be diverted on to line LA for return via line SU to the main conveyer (not shown).
Patent GB-1232176-A (GB)
IPC: H03G3/34
Filed: 1969-11-26
Abstract: 1,232,176. Pulse thresholding; pulse radar. INTERNATIONAL BUSINESS MACHINES CORP. 26 Nov., 1969 [20 Dec., 1968], No. 57760/69. Headings H3T and H4D. A circuit A2 for thresholding pulses received at E, more particularly in a radar receiver, derives the thresholding voltage Vs from a circuit comprising two capacitors C1 and C2 connected to respective charging circuits G2 and G<SP>11</SP>2 operative in response to the pulses and respective discharging circuits G1 and G<SP>11</SP>1, the latter circuit being controlled by the voltage across C1. In the circuit described, the threshold tends towards a value such that the total number of noise and signal pulses during a radar cycle is constant. The pulse output from the threshold circuit A2 is applied via a gate 12 which is opened during the period desired reflections are expected. These pulses operate a monostable circuit C2 which allows G2 and G<SP>11</SP>2 to pass a fixed charge to C1 and C2. The rate of charge and discharge is much greater for C1 than C2 and the fluctuations across C2 are very small so that a substantially steady threshold level is passed through buffer A1 to the thresholder A2. If the number of pulses above the threshold decreases, the threshold slowly decreases and vice versa. Leakage of charge from C2 is compensated by controlling the discharge rate through G<SP>11</SP>1 by the voltage across C2, the larger the voltage the slower the discharge. In the absence of any pulses during the expected periods (t2) an integrating circuit eventually operates a further charging path G<SP>1</SP>2 which prevents the output level of A2 falling below the threshold of A3. The useable period of MC may be varied to vary the threshold level and the effect of repeated pulses due to a high level of noise can be reduced by reducing the highfrequency response of amplifier A1.
Patent GB-1232785-A (GB)
IPC: A47B57/42
Filed: 1967-07-19
Abstract: 1,232,785. Shelving. DEXION Ltd. 4 Oct., 1968 [19 July, 1967], No. 33097/67. Heading A4B. A bracket 10 or 10a for supporting the flanged edge of a shelf 1 includes a block portion 14 for engagement within an upright 2, a rack portion 15 for engagement in one of a plurality of slots 3 in the upright 2 and a portion with an upwardly facing surface on which the shelf flange rests, the rack 15 having an upwardly extending lip 16 which is bevelled, as shown at 17, and serves to prevent separation of the bracket from the upright when the bracket is inadvertently raised. In one form, Fig. 3, the shelf supporting part of the bracket 10 is U-shaped and the shelf may be supported either by its flange resting on the. base of the U or by resting on a platform 12 on the bracket. In another form, Figs. 6, 7, an inturned flange 31 rests on the base of the shelf supporting part of the bracket 10a which is further provided with an end wall 27.
Patent GB-1233554-A (GB)
IPC: H02K15/02
Filed: 1967-08-04
Abstract: 1,233,554. Assembling laminated stator packs. NEWAGE LYON Ltd. 5 Aug., 1968 [4 Aug., 1967], No. 36026/67. Heading B3A. An assembly tool for the production of laminated stator packs, comprises a locating cage 10 in which individual stator laminations can be stacked one upon the other in correct location, the cage 10 having power activated ram means at one end by which the stack of laminations can be compressed against an abutment plate 11 in the other end of the cage, and the cage being rotatably mounted in a supporting cradle 20 for rotation relatively thereto about a pivotal axis corresponding to the axis of an assembled stack of laminations in the cage, and in which the cradle is itself pivotally mounted in a fixed supporting structure 26 for angular movement about a horizontal axis between the position in which the pivotal axis of the cage is vertical and a position in which the pivotal axis of the cage is horizontal. The cage 10 has a detachable top plate 18 on which are mounted hydraulic jacks constituting the power-activating rams 32, the jacks acting on a pressure plate 34 which is slidably mounted within the cage on the top plate and extends parallel to the abutment plate 11 for compressing a stack of laminations between the pressure plate 34 and the abutment plate. A side member 15 (Fig. 4, not shown) extends transversely to the laminations along the side of a stack of laminations, the side member carrying a key 14 which is movable between a position in which it projects into the interior of the cage for engagement in a key way formed by notches in the edges of the laminations, and a position in which it is retracted into the thickness of the side member. A spring-loaded plunger 40 locks the cage in any one of a number of predetermined angular positions in the cradle 20.
Patent GB-1233725-A (GB)
IPC: H01J1/308
Filed: 1968-05-10
Abstract: 1,233,725. Cathode materials and processing; image tubes. Semi-conductor devices. RCA CORPORATION. 10 May, 1968 [5 Sept., 1967; 15 Sept., 1967], No. 24158/70. Divided out of 1,233,721. Headings H1D and H1K. A transmission-type secondary emission device 1, e.g. a photomultiplier or light image amplifier, comprises a source of free electrons, e.g. photo-emissive layer 6, at least one dynode 9 including a film of P-type semi-conductor material 10 with a layer of an electropositive work function reducing material 11, not more than a few atomic diameters thick, on one surface, an arrangement to accelerate the electrons from layer 6 to impinge on surface 8 of the film with sufficient energy to produce secondary electrons in the conduction band of the material which diffuse towards and are emitted from the surface 12 of the dynode, the emitted electrons then, for example, after passing through further dynodes, striking phosphor screen 13. The semi-conductor film 10, e.g. monocrystalline gallium phosphide doped P-type with beryllium to a hole concentration of 10<SP>18</SP>-10<SP>20</SP>/cm.<SP>3</SP> has spaced valence and conduction energy bands, Fig. 3 (not shown), with its Fermi level lying adjacent the top valence band energy level and remote from the bottom conduction band energy level, and the work function reducing layer 11, e.g. a monomolecular caesium layer, lowers the vacuum energy level at the surface 12 to below the lowest conduction band energy level in the bulk of the film 10. The film 10 is sufficiently thick, e.g. 2000Š, to absorb the impinging electrons and yet not so thick as to exceed a value of the order of a three times the diffusion length for electrons in the material. A monocrystalline film 10 of P-type gallium phosphide may be epitaxially grown on a water support 17 of P-type monocrystalline gallium arsenide 5 mil. thick by the vapour phase reaction of gallium subchloride and phosphine mixed with a small amount of beryllium chloride. The centre area of the support 17 may be removed by etching with a sulphuric acid composition to give the annular ring shown. An indium layer 18 is alloyed to ring 17 to provide conductive contact to the dynode and mechanically support it within ceramic envelope 2. The acceptor material in film may be zinc or magnesium in place of beryllium and the film 10 may be polycrystalline if the grain diameter is of the same order as the film thickness, in which event the layer 17 may be formed of metal, for example. For impinging electrons having a kinetic energy of 2000 ev. the dynodes may have a secondary emissive ratio of 100 : 1.
Patent GB-1239061-A (GB)
IPC: H03H11/24
Filed: 1968-10-30
Abstract: 1,239,061. Automatic voltage control. STANDARD TELEPHONES & CABLES Ltd. 30 Oct., 1968, No. 51485/68. Heading H4R. A variable loss network for a transmission line has a shunt path consisting of the emitter/ base circuits of two transistors T 1 , T 2  whose emitters are connected to the conductors of the line. The impedance of the shunt path is altered by injecting into the emitter electrodes of the transistors equal control currents from respective high impedance sources. Two transistors T 3 , T 4  provide this source and have their collectors connected to the respective conductors of the line and their emitters connected together and to a source of control potential. Reference potentials are provided for the bases of the transistors by divider R 3 , R 4 , R 5 . The injected control current can be provided from the output line by amplifier 2 and rectifier 1 when the network is used as an automatic gain control circuit. For a given value of circuit impedance the total control range is determined by resistors R 3 -R 7  and can provide compressor or expandor action. The transistors should be matched so that the balance to ground of the transmission line is not disturbed and opposite polarity transistors can be used if the polarity of the source is reversed.
Patent GB-1251124-A (GB)
IPC: D01D1/06
Filed: 1969-01-10
Abstract: 1,251,124. Homogenizing apparatus. IMPERIAL CHEMICAL INDUSTRIES Ltd. 24 Dec., 1969 [10 Jan., 1969], No. 1664/69. Heading B1C. A homogenizer for a molten polymer comprises coaxial tubes 1, 13, the former at least having annular grooves as 3, 5 of which alternate ones connect to the interior of the tube 1 by bores as 9, 11. The tube 13 has external channels 15 closed by a tubular casing (not depicted) forming conduits connected to the interior of the tube 13 by bores 17 terminating opposite these annular grooves unconnected to the interior of tube 1. The tubes 1, 13 are relatively moved, e.g. rotated or reciprocated and the material is sheared by passage over the crests between the annular grooves and discharged through the interior of tube 1. Each channel 15 may terminate in a bore 17 at a different point along the apparatus (see Fig. 1, not shown), or each channel 15 may extend the whole length of the apparatus and have several bores 17. In modifications the apparatus may be fed through a distributor plate which is integral with tube 1 and has apertures registering successively with each channel 15; the channels 15 may be dispensed with if the clearance between tube 13 and the cover tube is sufficient; there may be annular grooves on the inner surface of tube 13 in addition to or replacement of those on tube 1.
Patent GB-1252214-A (GB)
IPC: H01H43/10
Filed: 1969-01-24
Abstract: 1,252,214. Time switches. SIEMENS A.G. 24 Jan., 1969 [31 Jan., 1968], No. 4277/69. Heading H1N. A programme control device, for washing machines, for example, comprises a support plate 10 having stationary spindles affixed therein to project on each side and to carry gear trains 11 and 12 on respective sides. A motor 13 mounted on the plate 10 drives gear train 12 by means of a shaft passing through plate 10 and carrying a pinion (15, Figs. 2 and 3, not shown) in mesh with gear wheel 16, whereby a timing member 1 is rotated. A solenoid 20, under control of timing member 1, can move a pinion 21 to interconnect gears 16 and 22 whereby the gear train 11 may be driven to rotate a hollow cam drum 2 by gear 26 meshing with internal peripheral teeth (27, Figs. 2 and 3, not shown). The drum 2 is journalled on rollers 39 and encloses the motor 13 and gear train 11, the latter having a device (17, 33, Fig. 2, not shown) to ensure starting of motor 13 in the correct direction, and also a one-way clutch device (36, 37, 38) within gear 25 to prevent reverse rotation of drum 2. Contact assemblies 4 are respectively actuated by drum 2 and member 1.
Patent GB-1265439-A (GB)
IPC: C08L33/20
Filed: 1970-04-21
Abstract: 1,265,439. Crimped polyacrylonitrile composite filaments. MITSUBISHI RAYON CO. Ltd. 21 April, 1970, No. 19068/70. Heading B5B. [Also in Division D1] Acrylic crimped composite filaments of either the side-by-side, i.e. conjugate type, or the eccentric sheath-core type comprise two components, one being polyacrylonitrile, the other being an acrylonitrile-methacrylonitrile copolymer containing from 5 to 50% (preferably 7 to 30%) by weight of methacrylonitrile and the polyacrylonitrile component occupying the outer portion of each crimp. Either one or both components of the composite filaments may contain from 0À3 to 6% by weight of a monomer unit having a -SO 3 X or -OSO 3 X group, where X is a monovalent alkali metal, -NH 4  or hydrogen. Examples of such monomers are 2-vinyl pyridine, 2-methyl-5-vinyl pyridine, vinyl benzenesulphonic acid, and sodium methallyl sulphonate. 'The filaments may be produced by separately dissolving polyacrylonitrile and acrylonitrile-methacrylonitrile copolymer containing from 5-50% methacrylonitrile in a solvent suitable for dry-spinning, extruding the resulting spinning solutions simultaneously in side-by-side or eccentric sheath-core relationship into an evaporative medium to form composite filament, drawing said filament in a hot water bath, drying the drawn filament and then heating the dried filament in a relaxed state to develop crimps. The filaments may be mechanically crimped before being subjected to the relaxing step.
Patent GB-1265605-A (GB)
IPC: H01J37/26
Filed: 1970-04-09
Abstract: 1,265,605. Transistor pulse gating circuits. STANDARD TELEPHONES & CABLES Ltd. 9 April, 1970, No. 16912/70. Heading H3T. [Also in Divisions G1 and H1] The true and inverse outputs of a 200 kc./s. oscillator 20 are alternately switched 23 to a common output 25 under the control of 800 c/s. clock-pulses 27 applied to a J-K trigger 26 clocked by the true oscillator output.
Patent GB-1266109-A (GB)
IPC: C21D9/00
Filed: 1970-09-08
Abstract: 1,266,109. Vacuum furnaces. VSESOJUZNYNAUCHNO - ISSLEDOVATELSKY INSTITUT ELEKTROTERMICHESKOGO OBORUDOVANIA. 8 Sept., 1970, No. 42882/70. Heading F4B. [Also in Division H5] An electrically heated vacuum furnace for the degassing and heat treatment of metal articles comprises a preheating zone 2 forming part of a housing 1 and a heating chamber 3 sealably closed by a valve 13, a charging device 16 with a container 17 and vacuum producing devices 15 and 26. The zone 2 in which the articles e.g. members of gas discharge tubes are degassed, has concentric heat resistant metal shields and heating rods 4 extending between arcuate members (6, Fig. 2), similar shields 12 and heating elements 11 being disposed in the heating chamber 3. The container 17 is loaded through a charging opening 22 with a cover 23 and is raised and lowered by a rod 19 connected to a column 20 operated by mechanism 18. A cover 21 on the rod 19 closes the chamber 3 when the container 17 is lowered thereinto.
Patent GB-1266969-A (GB)
IPC: G03G15/08
Filed: 1969-05-19
Abstract: 1,266,969. Electro-photographic developing. RANK XEROX Ltd. May 19, 1969 [May 20, 1968], No.25286/69. Heading G2H. Toner particles are applied to a latent electrostatic image on a rotating drum 46 by means of conical brushes 47, 48 which are rotated about and oscillated along their axes 57, 58. The axes are inclined to the drum 46, so that as the brushes oscillate their bristles 49, 51 contact the drum in varying degrees. The brushes may be fur or magnetic and their cores 52, 53 may be conductive and biased to improve the toner-holding ability of the brushes. The toner may be kept loose by a rotating auger 45.
Patent GB-1290649-A (GB)
IPC: G02B6/34
Filed: 1969-08-05
Abstract: 1290649 Optical band injection filter WESTERN ELECTRIC CO Inc 5 Aug 1969 [7 Aug 1968] 6467/72 Divided out of 1288953 Heading G2J [Also in Division H1] A band injection filter comprises a length of transmission line and at least one tuned "resonant cavity", formed by a closed transmission line supportive of travelling waves, said line being in coupling relationship with said cavity of two locations for inducing a pair of equal oppositelypropagating levelling waves in said cavity. On disclosed the "cavity" is a material of a higher refractive index than the substrate carrying it.
Patent GB-1295818-A (GB)
IPC: H04L25/12
Filed: 1971-07-28
Abstract: 1295818 Telegraphy; signalling by D.C. SIEMENS AG 28 July 1971 [29 July.1970] 35465/71 Heading H4P To avoid the disadvantages of reverse voltage keying on single current working, i.e. the necessity of equal exchange and reverse voltages to avoid residual current flow, an auxiliary current source for the reverse voltage is connected to the subscriber's line via a controllable switch, e.g. a transistor at the beginning of each start polarity element. The switch may be controlled by a pulse generator activated by a transmitting contact. The pulse generator may be constituted by a transformer having a first winding W1 in series with transmitting contact sk and traversed by line current, and a second winding activating a transistor T at the commencement of a start polarity element, i.e. when sk is opened. Diodes may separate the circuits of the two windings (see Fig. 4, not shown). The auxiliary source may have a voltage greater than the exchange voltage, and, Fig. 5 (not shown), discloses a circuit in which the reverse voltage is additively proportional to both exchange and auxiliary voltages.
Patent GB-1314369-A (GB)
Title: Device for the remote transmission of the precise angulat motion of  a driving shaft of a machine tool
IPC: B30B15/14
Filed: 1970-08-07
Abstract: 1314369 Mechanical presses KOMBINAT UMFORMTECHNIK ERFURT VEB 7 Aug 1970 38123/70 Heading B5F A machine tool, e.g. a press having a reciprocating ram 14 is provided with a device for the remote transmission of the precise angular motion of a driving shaft 1 to a shaft carrying cams 13 for controlling operation of a clutch and brake or like mechanisms through switch contacts, said device comprising a first selsyn transmitter 3 directly connectable to the shaft 1 and connected through a gear train 4, 5 to a second selsyn transmitter 6, and first and second selsyn receivers 10, 9 each connected to the first and second transmitters 3, 6 repectively, the first selsyn receiver 10 being connected directly to the cam-shaft and the second selsyn receiver being connected to the cam-shaft through a further gear train 11, 12. For monitoring the precise angular motion of the driving shaft and cam-shaft, the transmitter 3 is connected to a third selsyn receiver 17 which is connected through a clutch 19 to a further control switch contact 19.
Patent GB-1315142-A (GB)
Title: Cartridge containing a magnetic recording medium
IPC: G11B27/34
Filed: 1970-04-30
Abstract: 1315142 Cartridges for magnetic records CANON KK 30 April 1970 [30 April 1969 25 Dec 1969(5)] 60073/72 Divided out of 1315141 Heading G5R A cartridge containing an endless magnetic recording medium carries means providing in a machine-sensible form an indication of a time period no longer than one cycle of the recording medium when driven at a predetermined speed. The cartridge forms part of the system described in Specification 1,315,141
Patent GB-1315685-A (GB)
Title: Heating apparatus
IPC: F24D5/08
Filed: 1970-11-13
Abstract: 1315685 Space heaters DAVID R LORD Ltd 20 Jan 1972 [13 Nov 1970] 54041/70 Heading F4S Space heating apparatus, particularly for heating industrial premises such as workshops, comprises a U-shaped radiant heating tube 15 through which combustion gases from a gas fired burner unit 16 are drawn by means of a fan 21 and exhausted through outlet ducts 19 and 20. A safety switch 23 is provided to shut off the main gas supply to the burner unit 16 if the fan motor fails. The U-shaped heating tube 15 is supported on a structure comprising a number of spaced apart sets of interconnected bars 10, 11 and a longitudinally corrugated reflector plate 14. The apparatus is held in any desired position by means of suspension chains 13. More than one U-shaped tube may be utilized, each tube having its own burner unit.