baber/WOPTO huggingface dataset:
Patent GB-1095575-A (GB)
IPC: H04Q1/38
Abstract: 1,095,575. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORPORATION. July 23, 1965 [July 25, 1964], No. 31520/65. Heading H4K. In an exchange system having common apparatus, i.e. a register and a marker, which it is desired to interconnect via a switching matrix, the interconnection is tested for completeness before signalling between the two apparatus can occur. It is thus ensured that the cross-points in each of the leads interconnecting the apparatus are operated and that the leads themselves do not have excessive resistive losses. In the Figure it is required to provide bi-directional signalling between apparatus A and B over the unidirectional signalling channels Bba and Bab through matrix KF. On seizure, relays CA and CB (not shown) come up to close their contacts and thus render transistors Tza and Tzb conductive. Series relays Za and Zb are slow to operate and do not follow immediately. In apparatus B, diodes Db, Db<SP>1</SP>, Db<SP>11</SP> are forward biased by potential +U2 and so normally hold-off transistor Tba. However, with cross-points d of the matrix operated, potentials - U1 from apparatus A effectively cancel +U2 whereby the diodes cut-off and transistor Tba is rendered conductive so as to switch-off Tzb. If one or more of the leads is not completed properly, its associated diode remains on, Tba stays off and relay Zb eventually comes up to actuate an alarm. With Tzb off, however, and the contacts d in the Bab channel all correctly actuated, the diodes D a , Da<SP>1</SP>, Da<SP>11</SP> are also cut-off whereby Tab conducts and Tza switches off. If the connection is faulty, relay Za eventually operates to actuate an alarm. Signalling between the two apparatus then proceeds by actuating contacts sa and sb so as to bring-up the appropriate signal receiving relays Ya, Xb, Xb and Yb.
Patent GB-1143736-A (GB)
IPC: C07C17/15
Abstract: 1,143,736. Oxychlorination process. PPG INDUSTRIES Inc. 6 July, 1966 [7 July, 1965], No. 30312/66. Heading C2C. Chlorinated aliphatic hydrocarbons are obtained by mixing aliphatic hydrocarbons containing 1 to 4 carbon atoms and/or incompletely chlorinated derivatives thereof, an oxygen-containing gas and a chlorinating agent, which is chlorine and/or hydrogen chloride, in a mixing chamber to provide a gaseous mixture having a velocity of at least 10 feet per second, and passing the resulting mixture to an oxychlorination catalyst bed operated at oxychlorination temperature. As shown in Fig. 2, the gases, after entering a feed pipe 1 via orifices 2, 3, 4 and 5 may be fed through heat-exchange zone to maintain the gases at a temperature above that at which condensation occurs but below that at which pre-reaction occurs. Examples illustrate the conversion of ethylene to 1 ,2-dichloroethaae and a number of other starting materials are mentioned.
Patent GB-1228252-A (GB)
IPC: H05G1/56
Filed: 1968-07-05
Abstract: 1,228,252. Control systems for X-ray apparatus. PICKER CORP. 5 July, 1968 [7 July, 1967], No. 32192/68. Heading H2H. The control system of a grid-controlled X-ray tube comprises a switching circuit which permits or prevents current flow between the anode 12 and cathode 13 of the X-ray tube, an exposure control circuit (not shown) for controlling the switching circuit, a control circuit 86, 85, 84, 23 which forward biases the control grid 14 when the switching circuit permits current flow, the controlgrid being reverse-biased when the switching circuit prevents current flow. The system may include a radio frequency exposure controller, Fig. 2 (not shown), controlled by an exposure timer control and connected by an air-core transformer 33 to a transistor switching circuit 72, 73. When this circuit is rendered conductive on receipt of an exposure control signal, the transistor 73 connects a conductor 68<SP>1</SP> to the negative conductors 70, 16 of the tube supply E. This removes the negative bias from the control grids of pentodes 91, 92 causing the pentodes to complete the supply circuit from conductor 70 to the cathode 13 and to short circuit a circuit 135 ... 138 to remove most of the negative bias from the control grid 14 of the X-ray tube. Any remaining voltage drop is overcome by the positive potential supplied by the control circuit, i.e. rectifier 85. The auxiliary supplies 86, 85 and 120, 121 ensure rapid turn-on and turn-off of the X-ray tube.
Patent GB-1230841-A (GB)
IPC: B65G47/90
Filed: 1968-05-21
Abstract: 1,230,841. Transferring glassware between endless conveyers. U.G. TABLEWARE Ltd. 21 May, 1969 [21 May, 1968], No. 24190/68. Heading B8A. A transfer device comprises an article retaining member 10 adapted to traverse a conveyer from which articles are to be removed, the retaining member 10 having a plurality of spaced article-receiving recesses 12, a transfer member 20 disposed vertically above the member 10 and having a plurality of article gripping means 22, the transfer member 20 being adapted to pick up articles 2 retained in the recesses 12 and deposit them on the carriers 6 of a conveyer 8. As described, there are two members 20 each carrying a series of semi-cylindrical gripping jaws 22. Each jaw 22 co-operates with a corresponding jaw on the other member 20 to grip the upper part of an article of glassware which extends above the member 10.
Patent GB-1233186-A (GB)
IPC: H02J7/00
Filed: 1968-02-26
Abstract: 1,233,186. Charging batteries. ELECTRIC POWER STORAGE Ltd. 25 Feb., 1969 [26 Feb., 1968], No. 9180/68. Heading H2H. A battery charging circuit applies current to the battery intermittently, the duration of the "off" periods depending on the fall in battery voltage during these periods. The charge is terminated or modified by a device which is responsive to a function of the duration of the off-periods. In the arrangement shown in Fig. 1, a battery is charged from an A.C. source 8, 9 by way of thyristors 5, 6, a transformer 4 and rectifier bridge 1. Connection of the battery to terminals 2, 3 causes current to flow through relay coils 28 and 30 resulting in the closure of contacts 30/3 and 30/4 amongst others and so allowing charging to begin. At the same time, a timer 10 and its associated clutch 11 are energized and these run for a preset time before opening contacts 10/1 to de-energize relay 30 and interrupt the charging. The timer 10 resets to its initial position, whilst closure of contacts 30/2 starts the operation of a "total off" timer 15. Now that charging has ceased, the battery voltage begins to fall, and when it reaches a predetermined level a Zener diode 31 conducts, switching on transistors 12 and 32. Relav 30 again operates and another period of charging begins. However, the clutch 16 of the timer 15 is not reset, so subsequent off periods are recorded cumulatively by the timer 15. After a number of cycles, the total off time reaches a preset level, and then the timer 15 energizes a relay 29 which modifies the circuit so that charging occurs only if the battery voltage falls below a certain value. When this happens, the battery is charged for a fixed time determined by a further timer 13. In a modification, Fig. 2 (not shown), the first stage of the charging cycle is ended when the relative increase in duration of an off period compared with the preceding period falls below a predetermined amount, e.g. 10%. This is achieved by replacing the total off timer 15 with a reversible motor which is driven in opposite directions during alternate off periods and is arranged to run 10% slower in the reverse direction. The second phase of the charging only begins when the motor fails to regain its initial position before the current off period finishes.
Patent GB-1234596-A (GB)
IPC: B29C39/00
Filed: 1968-12-06
Abstract: 1,234,596. Laminated optical filters. CARLZEISS - STIFTUNG, [trading as JENAER GLASWERK SCHOTT & GEN.]. 6 Dec., 1968 [9 Dec., 1967], No. 58106/68. Heading B5N. [Also in Division G2] A process for the manufacture of an optical filter, for example an ultra violet suppression or skylight filter, in which a layer of synthetic plastics material 2 is disposed between two cover glass plates 1, 4 comprises pouring a partially polymerized synthetic plastics material such as methylmethacrylate containing in solution a polymerization catalyst, e.g. azodiisobutyrodinitrile, at least one dyestuff and/or an ultra violet absorber such as 2(2<SP>1</SP>- hydroxy - 5 - methylphenyl) - benztriazole and at least one adhesion promotor, e.g. vinyltriacetoxy-silane on to a horizontally disposed glass plate 1, (shown vertically in Fig. 4) provided with spacer means 3 conveniently of paper, allowing a layer of the solution to be formed applying a second glass plate 4 to the layer until it rests on spacer means 3 without including any air bubbles between the two plates, curing the plastics material by heating, cutting off one or more filters 5 from the resulting laminate and grinding it down to the required thickness, and then polishing it. Filters of the required diameter are cut from the laminate, preferably by means of hollow diamond drills 15-30 and being produced in one working operation. Three examples are given of the method for producing filters of various transmission properties shown in the graph provided.
Patent GB-1238148-A (GB)
IPC: G21C3/10
Filed: 1970-06-09
Abstract: 1,238,148. Fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. 9 June, 1970 [19 June, 1969], No. 27752/70. Heading G6C. In a method of fitting a spacer wire helically to a fuel element, a wire 16 terminating in a partspherical member 20 is fitted in a passage 22 in an end plug 12 of the fuel element, the diameter of an intermediate portion of the passage 22 being less than that of the member 20, the free end of the wire 16 is rigidly secured to the other end plug 14, and the wire 16 is woundhelically on the fuel can 10 before or after the free end of the wire 16 has been so secured. In the embodiment illustrated in Figure 1, the wire 16 extends through an oblique passage 22 formed in the bottom plug 12 and having a shoulder 24 against which the member 20 bears. To facilitate insertion and positioning of the wire 16, the passage 22 continues in the form of a slot 26 of width slightly greater than the diameter of the wire, the slot extending through the plug diametrically. The slot widens out locally at 28 to form a recess to receive the head of a rail which bears the fuel element in a fuel assembly. The helically wound wires around each of the fuel elements in the assembly serve to accurately maintain spacing between the fuel elements. After the wire has been wound helically with a coarse pitch around the can 10, its upper end is secured to the top plug 14 by crimping in a notch 15 provided for this purpose in the plug 14 parallel or slightly oblique to the longitudinal axis of the fuel element. In another embodiment (Fig. 3, not shown), the wire has a partspherical member at each end, is fitted into the passage in the bottom plug as in the first embodiment, then secured to a rotary part of the top plug by engaging it via another slot, and finally wound helically on the can by rotating the rotary part which is then locked on the fixed part of the top plug.
Patent GB-1251616-A (GB)
IPC: C09H1/02
Filed: 1970-02-25
Abstract: 1,251,616. Sink-float separation. CESKOSLOVENSKA AKADEMIE VED. 25 Feb., 1970 [17 March, 1969], No. 9098/70. Heading B2H. [Also in Division C3] In the production of gelatin and glue, degreased and crushed hard bones and soft bones are separated from each other by introducing a mixture of crushed hard bones and soft bones into a fluid medium having a specific gravity greater than that of the soft bones so that hard bone particles of higher specific gravity drop down to the bottom of the medium to form one layer and soft bone particles of lower specific gravity are raised into an upper separate layer, and discharging the separated hard and soft bone particles from the medium separately. The particles of at least one of the layers are then macerated and boiled to form gelatin and/or glue. The medium may be water or a liquid suspension and may be static or pulsating. The bones may be crushed to a particle size of between 2 and 30 mm.
Patent GB-1257336-A (GB)
IPC: B01L3/00
Filed: 1968-12-19
Abstract: 1,257,336. Reaction containers. XEROX CORP. 19 Dec., 1968 [26 Dec., 1967], No. 60369/68. Heading B8C. [Also in Division B1] A disposable plastics reaction container 50 has a lower section 52 of two separate lower compartments 62 and 64 and an upper storage section 54 having a plurality of storage chambers 56, 58 &c. Each storage chamber is formed integrally with at least one hollow, concentric, flexible finger 16 extending from the top of the chamber to just below the plane of flange 12, which has a rib or ribs 20 to support and secure an annular tablet 22. In use, a probe 24 of slightly greater diameter than the finger is inserted into the hollow 28, thus causing the tablet to expand and fracture and drop into the container. Flanges 82 and 96 which encircle upper and lower sections respectively are of the same size and dimensions so enabling the two sections to be heat sealed together. A portion of the flange perimeter is of sufficient width to carry a code area. The walls of the container may be rigid or flexible, and to enable optical analysis of samples injected into the container to be performed, at least one opposite pair of walls are preferably transparent. In further embodiments, each hollow finger has longitudinal ribs, Fig. 8 (not shown), or portions of different diameters, Fig. 9 (not shown), so as to hold tablets of varying size.
Patent GB-1257643-A (GB)
IPC: D07B1/02
Filed: 1968-01-23
Abstract: 1,257,643. Ropes of thermoplastic fibres. TOUGH ROPES Ltd. 10 Jan., 1969 [23 Jan., 1968], No. 3515/68. Heading D1T. Ropes of thermoplastic fibres selected from the group comprising polyesters, polyamides, polyolefines and polyvinyl alcohol are made by combining at least two of these fibres having different melting points by twisting or spinning the fibres to form a yarn in which the fibres of higher melting point, e.g. polyester are enclosed by the fibres of lower melting point, e.g. polyolefin. The rope is then constructed from this yarn in known manner. The higher melting point fibres may be continuous filaments and the others may be staple fibres. Alternatively all may be of continuous form or all may be in staple form. The yarn may be formed by twisting a ribbon of polyolefin, e.g. polyethylene fibre round a continuous thread of polyester, e.g. terylene (Registered Trade mark). The rope preferably contains 30-70% of the lowest melting point fibre.
Patent GB-1259230-A (GB)
IPC: F01K9/00
Filed: 1970-11-13
Abstract: 1,259,230. Installation including steam boiler, turbine and condensing means. KRAFTWERK UNION A.G. 13 Nov., 1970 [14 Nov., 1969], No. 54271/70. Heading F4A. In an installation comprising a steam boiler, a turbine which receives steam from the boiler, and condensing means to supply boiler feedwater from the exhaust steam from the turbine, two streams of exhaust 4, 5 from turbine stages 1, 2 supply two condensing means 6, 7. These are arranged so that the one, 7, produces condensate having a higher temperature and pressure than the other; as shown, this is achieved by blowing a stream or air 20 across first 6, then 7. The coolest stream is passed through duct 8 to container 10, arranged at a lower level than condenser 6, and is sprayed through nozzles 11 to be heated by an incoming supply of steam from duct 12. This steam may be turbine exhaust, as shown, or may be bled directly off the turbine. The heated condensate is mixed with the condensate from condenser 7 and a pump 16 supplies the resultant as feedwater through pipe 17.
Patent GB-1295375-A (GB)
IPC: D06M16/00
Filed: 1970-11-20
Abstract: 1295375 Antimicrobial treatment of textiles BAYER AG 20 Nov 1970 [16 Dec 1969] 55315/70 Heading A5E A process for the antimicrobial treatment of textile materials comprises chemically linking the textile material with a reactive ionic substance which is monochloroacetic acid, an unsaturated aliphatic carboxylic acid or chloromethylphosphonic acid, whereby the material is made partially anion-active, and finishing the resulting partially anion-active textile material by treatment with an organic cation-active microbicide. Suitable cation-active microbicides include bactericidal quaternary ammonium salts and N-chlorophenyl alkylene polyamines.
Patent GB-1297947-A (GB)
IPC: B01J13/00
Filed: 1969-03-20
Abstract: 1297947 Incorporating photographic ingredients into hydrophilic colloid compositions AGFAGEVAERT 13 March 1970 [20 March 1969] 14763/69 Heading G2C A method of incorporating a photographic ingredient having a solubility in water at 20C. of not more than 3% by weight into a hydrophilic colloid coating composition for forming a waterpermeable colloid layer of a light-sensitive silver halide element comprises dissolving said ingredient in a mainly water-immiscible organic solvent (having a solubility in water of not more than 25% by weight at 20C.), admixing the solution thus obtained with water in the presence of a dispersing agent but in the absence of a hydrophilic colloid, removing the organic solvent forming thereby a dispersion of the ingredient in water and incorporating the dispersion thus formed in the hydrophilic colloid coating composition. The solubility of the solvent in water is preferably between 2 and 10% by weight at 20C. The solvent preferably has a boiling point of not more than 130C. The solvent may be methylene chloride, ethylformate, n-butyl formate, ethyl acetate, n-propyl acetate, isopropyl acetate, butyl acetate, methyl propionate, ethyl propionate, carbon tetrachloride, sym. tetrachloroethane, 1,1,2- trichloroethane, 1, 2-dichloropropane, chloroform, n-butyl alcohol, diethyl ketone, methyl n-propyl ketone, diisopropyl ether, cyclohexane, methyl cyclohexane, benzene, toluene or nitromethane. An organic solvent completely miscible with water may be used together with the mainly waterimmiscible solvent in order to dissolve the ingredient. The solvent may be removed by evaporation. The hydrophilic coating composition may be a light-sensitive silver halide emulsion. The ingredient may be a colour coupler, maskformer, competing coupler, light-absorbing dye, sensitizing dye or stabilizing agent.
Patent GB-1301269-A (GB)
IPC: F02M1/16
Filed: 1970-04-07
Abstract: 1301269 Spray carburetters MIKUNI KOGYO CO Ltd 7 April 1970 [10 April 1969] 16481/70 Heading F1B In a carburetter having a main fuel chamber 15 defined by a diaphragm 18 which controls the fuel inlet valve 23 to the chamber, a fuel well 36 connected to the supply passage 33 to the chamber communicates with the induction passage 11 through a pipe 40 and passages 16, 17. A valve 42 which is opened manually allows fuel to be drawn from the well 36 into the passage 11 for engine starting. Fuel is pumped to the passage 33 by an integral intake manifold actuated diaphragm 25 or a separate engine driven plunger pump. With the well 36 full, fuel returns through conduit 39 to the vented fuel tank 30. Openings 41 in the pipe 40 provide for aeration of the fuel for starting.
Patent GB-1302458-A (GB)
IPC: B66F3/08
Filed: 1970-09-24
Abstract: 1302458 Vehicle lifting devices W J PENGILLY 22 Sept 1971 [24 Sept 1970] 45467/70 Heading B8J A vehicle lifting device comprises a steel framework 1 which can be attached to a lifting vehicle having box girders 5, 6 on which a lifting bar holder 4 is movable by means of a screw jack 7, the lifting bar (not shown) being inserted during use in the hole 10 in the holder 4 to extend at right angles from the holder 4 and under a vehicle for lifting.
Patent GB-1305925-A (GB)
Inventor: RICHARD D BAKER LIONEL
IPC: G01M11/02
Filed: 1970-03-19
Abstract: 1305925 Photo-electric lens centring SIRA INSTITUTE 19 April 1971 [19 March 1970] 13431/70 Addition to 1147521 Heading H4D The decentring of the surfaces 20, 26 of a lens 18 mounted on a rotating holder 32 is detected by position-sensitive photo-cells 22, 22<SP>1</SP> respectively viewing the radiation (visible light, ultra-violet or infra-red) from a source 12 reflected from surfaces 20, 26 of the lens, the radiation from the surfaces being focused on to the respective photo-cells by optical systems 24, 24<SP>1</SP>. The outputs from the photo-cells 22, 22<SP>1</SP>, may be fed to an oscilloscope or to centre-zero meters, the outputs from photo-cells 22, 22<SP>1</SP> being amplified by tuned amplifiers which are tuned to the frequency of a chopper 11 which interrupts the radiation from source 12, the x and y outputs then being demodulated relative to a reference signal derived from all the output terminals of one of the photo-cells. To centre the lens the adhesive holding the lens to holder 32 may be softened by warming and the lens moved by hand or the holder 32 may be on an adjustable table which is moved by hand. In an alternative embodiment (Figs. 1a and 1b, not shown) the photo-cell 22<SP>1</SP> is dispensed with as are the beam splitter 16<SP>1</SP> and lenses 24<SP>1</SP>, 65. In this case the focused radiations from the two surfaces 20, 26 are sequentially viewed by the one photo-cell 22, the lenses 24 being movable along their axes and the photo-cell 22 movable perpendicularly to its axis to focus the radiation from the appropriate surface on the photo-cell 22.
Patent GB-1314007-A (GB)
Title: Optical aligning device
IPC: F21V17/02
Filed: 1969-04-25
Abstract: 1314007 Optical aligning device BRITISH RAILWAYS BOARD 24 April 1970 [25 April 1969] 21274/69 Heading G2J An externally applied device for checking the alignment and focusing of a light-projector 10, 12, Fig.1 comprises a lens 16 adapted to focus a beam 22 on to a translucent screen 14 and an optical system 18, 20 which forms an image of the distant field on the screen such that to an observer both images appear superimposed. The system comprises a convex lens 18 and an erecting lens or prism assembly 20, and the observer would see an upright image of the distant field overlaid by a "beam-image" 15. The beam 22 is brought to best parallelism by moving source 10 axially relative to the aspect lens 12 to find that location where the beam-image is smallest; it may be aimed along a selected observation path by lateral adjustment of source 10 until the beam-image centre overlies a target point on the field-image. The beam-image brightness at any point of the field image represents that brightness which would be observed if the projector were viewed from the corresponding location, and the angular spread of the beam may be measured by means of a scale on the screen 14.  In a second embodiment, beam 22 is focused by partially reflecting paraboloid mirror 26, Fig. 2 on to a screen 28: the beam-image 15 is seen through the mirror 26 to be superimposed on a virtual field-image. For weak beams in bright weather, the screen surface 28 may be diffusely reflecting or it may be formed in a regular fine pattern of small curved mirrors; for strong beams in dark weather, an aria of the mirror 26 may have a reflection co-efficient different from the rest of the area. To indicate the angular spread of the beam, the screen may be marked by an array of small light-sensors or by small apertures exposing a comparison light field of controllably variable luminance. Screen 28 may be disposed adjacent and in front of lens 12, when one side will be light absorbing Fig. 2b (not shown). In a third embodiment Fig. 3 (not shown) the paraboloid 26 is replaced by a partially reflecting plane mirror (32) and a lens (33), in which case both images are virtual and at infinity. In a fourth embodiment lens (33) is replaced by a lens 34, Fig. 4 between the aspect lens 12 and the plane mirror 32. A cross-wire 36 is positioned so that its image in the mirror coincides optically with the nodal point of the lens 34; with the crosswire aligned with the centre of image 15 seen through mirror 32, the line of observation is along path 24. The angular spread of beam 22 may be ascertained by adapting the cross-wire in the form of a radial arrangement of identical transparent lenticular strips 39 Fig.4a (not shown). The device may be rearranged in the same manner as described with reference to Fig.2b (not shown).