baber/WOPTO huggingface dataset:
Patent GB-226822-A (GB)
Title: Improvements in continuous process for the dehydration of volatile fatty acids
IPC: C07C51/46
Filed: 1924-12-23
Abstract: 226,822. Soc. Anon. des Distilleries des Deux-SÞvres, (formerly Soc. Ricard, Allenst, et Cie). Dec. 28, 1923, [Convention date]. Acids, concentrating. -The continuous process of dehydrating organic acids by distilling in presence of added liquids which form azeotropic mixtures is carried out, in the case of dilute acids in two stages. In the first stage, an added liquid or mixture of liquids of comparatively high boiling-point is used, and in the second stage an added liquid or mixture of liquids which has a low boiling-point, and will carry over very little acid, is used. In the treatment of a 10 per cent solution of acetic acid, the acid from a tank B is distilled in a column C<1> in presence of xylene. The condensate from a condenser F<1> passes to a settling-vessel D<1> from which the upper layer of xylene is returned to the column, and the lower layer is discharged, or, if it contains much acid, part may be returned to the column, or it may be diluted with water. The partly dehydrated acid from the base of the column C<1> passes to a second column C<2> in which it is distilled in presence of benzol. The condensate from the condenser F<2> passes to a settling- vessel D<2> from which the upper layer of benzol is returned to the column and the aqueous layer is discharged. In a 10 per cent solution of formic acid butyl formate is used in the first stage and gasoline or petrol boiling at 75-80‹ C. in the second. In treating 10 per cent acrylic acid, solvent naphtha is used in the first stage and butyl chloride in the second. Impurities present in the acids may be separated by withdrawing them from the plates of the columns on which they collect, or by distillation in a small column which receives the liquid from the base of the column C<2>.
Patent GB-739313-A (GB)
Title: Improvements relating to the production of oxalate coatings on metals
IPC: C23C22/46
Filed: 1953-11-09
Abstract: A solution for use in forming oxalate coatings on metal surfaces comprises oxalic acid, fluoboric acid or a salt thereof, and an oxidizing agent.  The pH of the solution may vary from 0.7 to 2.0. The oxidizing agent may be sodium chlorate and a soluble salt of a polyvalent metal less noble than iron, e.g. aluminium sulphate, may be present.  The coating may serve as a foundation for paint or as a lubricant-carrying surface for plastic deformation or may be used in combination with oils to enhance corrosion resistance.  Iron and carbon steel surfaces may be treated.
Patent GB-481306-A (GB)
Title: Improvements in or relating to means for adjusting forme-inking rollers in printing machines
IPC: B41F31/30
Filed: 1936-11-13
Abstract: 481,306. Printing-machines. TIMSON, E. A. Nov. 13, 1936, No. 31052. Addition to 460,080. [Class 100 (ii)] Inking - apparatus.- The forme - inking roller supporting and adjusting unit described in the parent Specification is provided with means whereby the plate or bracket to which the arm carrying the roller is pivoted can be moved to effect throw-off of the inking roller, so that removal of the pin by which the arm is pivoted to the plate to permit throw-off is unnecessary. The roller-carrying arm 1 is mounted on the plate 2 by a pivot pin 9 about which the arm is adjustable by studs 6 engaging a bush 8 on the abutment stud 3, and the plate 2 is adjustable about an eccentric 11 on a stud 15 by similar screws 4 engaging a second bush 5 on the stud 3. To allow of movement of the plate 2 about the stud 3 to move the roller into an inoperative position, the eccentric 11 is carried by a knob 12 threaded on the stud 15 and engages in a block 14 slidable in a slot 13 in the end of the plate 2. The knob serves also to clamp the plate 2 when the roller is in the operative position. Instead of the eccentric 11, a cam or a crank-pin which may carry a roller may be employed.
Patent GB-670062-A (GB)
Title: Arrangements for determining the conditions to be applied by a register controller in setting up a connection
IPC: H04M15/08
Filed: 1949-12-02
Abstract: 670,062. Automatic exchange systems. STAATSBEDRIJF DER POSTERIJEN, TELEGRAPHIE EN TELEFONIE. Dec. 2, 1949 [Dec. 2, 1948], No. 31070/49. Class 40 (iv). In a register-controller system the conditions to be applied by the registercontroller in setting up a connection, in dependence upon the class or character of the calling and called lines, are determined by means including two groups of relays each of as many relays as there are different classes of line (or two cross - bar switches each having at least that number of crossings), the signalling of the conditions taking place over cross-connecting frames which are connected up dependent upon the setting of the call finder and final selector involved in the connection and which serve to operate further relays in the register-controller corresponding to the conditions to be applied. The embodiment described can deal with up to 30 classes of line, two groups of 30 relays being provided. The operating lead of each relay of the first group OI1 ... OI30 is wired to the contacts of the lines of one class in the call finder banks and that of each of the second group EI1 ... EI30 to those in the final selector banks. In the register-controller a further group of relays E1 ... E0 is provided comprising one relay for each set of conditions to be applied, each relay being associated with a cross-connecting frame of which that corresponding to relay E1 is shown. After the final selector has been set, the closure of contacts ss1 of a sequence switch brings up relay A, and if no other register is using the common condition-determining apparatus relays MCn and Mn follow. The cross-connecting frames (10 in number) are thus connected to the register-controller, earth is applied via the switch train to operate the relevant OI and EI relays, and relay Z pulls up and releases A. The common apparatus is released and the blocking relay MCn restores. Depending upon the cross-connections on the frames one or more of the relays E1 ... E0 are operated and lock up to register the conditions to be applied. The arrangement may be applied to calls originated in another exchange, the incoming trunk registers being provided with five register relays KA ... KE which receive the calling line number in five-unit code. The contacts of these relays form a pyramid, the 30 outlets of which are connected to the operating leads of the OI relays. The conditions applied by the register-controller may include special metering, non-metering, prohibiting the call, or allowing international calls.
Patent GB-1075752-A (GB)
Title: Flexible package and packaging material and method of making same
Inventor: ANDERSON WILLIAM E
IPC: B65D75/26
Filed: 1964-08-04
Abstract: 1,075,752. Laminates. RIEGEL PAPER CORPORATION. Aug. 4, 1964 [Dec. 30, 1963], No. 31127/64. Heading B5N. Flexible packaging material comprises a layer of paper 11, such as glassine, bonded to plastics film 13, e.g. polythene, of greater stretchability, using a weak bonding agent 14, e.g. a mixture of paraffin wax and butyl rubber in the ratio 95% wax to 5% rubber, the paper layer being impervious to the bonding agent. A layer 12 of polythene may be applied such as by extrusion to the inner face of the glassine prior to bonding. Two layers of the packaging material may be placed one on top of the other with the glassine outermost and heat sealed peripherally to form a package.
Patent GB-193483-A (GB)
Title: Improvements in or relating to motor-vehicles
IPC: B62D21/18
Filed: 1921-11-22
Abstract: 193,483. McCurd, W. A. Nov. 22, 1921. Frame components, applying and combining.- A skeleton body B, C, D supports the motor and gear box at the top and is dropped below the axles. With this arrangement the vehicle may be loaded from the sides.
Patent GB-365553-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H01H47/00
Filed: 1930-10-20
Abstract: 365,553. Automatic exchange systems. AUTOMATIC TELEPHONE MANUFACTURING CO., Ltd., Strowger Works, and TAYLOR, R., 30, Oulton Road, Wavertree, both in Liverpool. Oct. 20, 1930, No. 31453. [Class 40 (iv).] A resistance 14 swamping the loop resistance is normally included in the circuit of a two-step combined line and cut-off relay LCO which pulls up its armatures lco1, lco2 to make marking and'starting circuits when the subscriber calls and all its armatures, when the finder puts ground on the 3rd wire, to open the starting circuit and connect up the meter.
Patent GB-392550-A (GB)
Title: Improvements in cushions, seats, mattresses, and upholstery in general
IPC: A47C27/15
Filed: 1931-11-14
Abstract: 392,550. Indiarubber springs; vibration-dampers. RAMSDEN, H., The Nook, Beech Wood Road, Ovenden, Halifax, Yorkshire. Nov. 14, 1931, No. 31548. [Class 108 (iii).] A cellulose rubber structure B is totally enclosed by a non- porous skin A provided with partially obstructed orifices arranged over its whole surface. The orifices may be provided with flaps C<1> or a double skin may be used, the orifices C in one not coinciding with those in the other. Cavities may be provided in the cellular rubber or the structure may be built up of blocks of cellular rubber dipped in rubber latex and the outer skin may, if desired, be formed by dipping the assembly in rubber latex.
Patent GB-1076321-A (GB)
Title: Catalytic systems and proces for the preparation thereof
IPC: C08F10/00
Filed: 1964-08-04
Abstract: Polymerisation catalysts are prepared by contacting SiO2, Al2O3 or SiO2-Al2O3 with chromyl chloride either above or mixed with chromyl fluoride and activating the catalyst by heating in the presence of an inert gas, oxgyen or an oxygen-containing gas.  In examples, CrO2Cl2 and CrO2F2 are applied to the carrier gaseously or as a solution in nitrobenzene or a halohydrocarbon.
Patent GB-604246-A (GB)
Title: Improvements in or relating to frequency-doubling devices for high-frequency oscillations
IPC: H03B19/10
Filed: 1945-11-24
Abstract: 604,246. Valve generating circuits. PHILIPS LAMPS, Ltd. Nov. 24, 1945, No. 31762. Convention date, Aug. 15, 1940. [Class 40 (vi)] A frequency doubling arrangement comprises a bridge a, b, c, d formed of diodes B1, B2 and capacitors C1, C2 across points a, c of which is applied the frequency to be doubled from a tuned circuit L1, C3. Energy at the double frequency can be taken across a circuit L2, C4 tuned to the double frequency and connected across b, d. A point e on L2 and a point on L1 are earthed. To prevent radiation losses from leads 2, 3 at the double frequency, it is arranged that the points a, c have no potential at the double frequency relative to point e. This is effected by ensuring balance of both the bridges a, b, c, d and a, b, e, d, by making c1 1 and c2 equal to the anode-cathode capacities of the valves B1, B2 and making e the electrical midpoint of circuit L2, C4. Fig. 2 shows a constructional arrangement in which the oscillations to be doubled in frequency are fed from loop 1 to a quarter-wave Lecher line 2, 3 tuned by capacitor C and connected to the grids of triodes T1, T2, to the connected anodes and cathode of which is connected a Lecher line 4, 5 earthed at the centre and equal to a quarterwavelength of the doubled frequency. By choosing similar valves T1, T2, the ratio of the gridanode and grid-cathode capacities is the same for both tubes, and the ratio of the impedances of the two halves of the Lecher line 4, 5 is made equal to this ratio by having one wire thicker than the other.
Patent GB-602570-A (GB)
Title: Improvements in or relating to sheet metal piling
IPC: E02D5/04
Filed: 1945-11-26
Abstract: 602,570. Sheet piling. SOC. METALLURGIQUE DE SENELLE-MAUBEUGE. Nov. 26, 1945, No. 31811. Convention date, March 17, 1942. [Class 68 (ii)] At the junction point of lines of metallic sheet piling, a sheet pile is arranged as one of the first line of sheet piles and is formed at the vertical edges in such manner that jointing with adjacent sheet piles is easily effected, and is provided on one side with grooves, hooks, ribs or the like whereby junction is easily effected with another sheet pile of the pattern being used, this latter pile being the first pile of the second line. As shown in Fig. 6, the sheet pile for use at the junction, is provided with shoulders on the two vertical edges for connection, by known clamps, to adjacent sheet piles, and a jaw is formed on one side of the sheet pile for coupling to another pile which may be the first pile of another line, or may be a reinforcement only of the main line of piles. The section of the junction pile may be modified by having jaws at the edges instead of shoulders, or by having a shoulder on the face of the sheet pile, instead of a jaw. All the connections may be by jaws, or all by shoulders, and the forms of the jaws or shoulders may be varied to suit the pattern of the piles being used. The junction pile may be generally of V-section if required for joining three radiating lines of piles.
Patent GB-1055993-A (GB)
Title: Presses
Inventor: BEARD JACK HERBERT
IPC: B30B1/32
Filed: 1963-08-13
Abstract: 1,055,993. Metal working presses. DAVY & UNITED ENGINEERING CO. Ltd. July 31, 1964 [Aug. 13, 1963], No. 31845/63. Heading B3H. A press comprises a movable beam connected to drive means through a plurality of tie-bars, each tie-bar being pivotally connected at one end to the beam and at the other end to the drive means and being arranged to slide in preloaded spring guides. The press has a base 12 with four corner extensions 13 rigidly attached thereto, a pair of driving crossheads 17a and four hydraulic lifting cylinders 15 having rams coupled to shafts 17 rigidly secured to the crossheads. Four tie-bars 18 have their ends connected to the shafts 17 for pivotal movement relative to the crosshead 17a and their upper ends pivotally connected to a beam 22 for ralative movement thereto about a horizontal axis 22a. A pair of hydraulic cylinders 23 mounted in the base act on the crossheads to lower the beam. Material which has been pressed is removed from the press along the table 25 by hydraulic means (not shown). Each tie-bar of a rectangular cross-section is guided between two sets of guide means mounted one above the other, each set comprising a pair of fixed bearing pates 31. Fig. 3 (not shown), parallel to the length of the beam and a pair of spring-loaded movable bearing plates 32 normal to the length of the beam which urge the tie-bars into a vertical position. Plates 30 supporting the bearing plates 31 are pre-loaded by a force of 1À42 tons per spring by a pair of leaf or coil springs 33 so that the plates 32 bear against the edges of the plates 31. The bearing plates may be of phosphor bronze and have lubrication channels formed therein.
Patent GB-975896-A (GB)
Title: Diaphragm type carburetor or charge forming device
IPC: F02M17/04
Filed: 1960-11-21
Abstract: 975,896. Spray carburetters. TILLOTSON MANUFACTURING CO. Nov. 21, 1960 [Nov. 27, 1959], No. 31888/64. Divided out of 975,894. Heading F1B. In a carburetter having a body 1 formed with a fuel and air mixing passage containing a throttle valve, a flexible diaphragm 4 forming the wall of a shallow fuel chamber 13, orifice means opening into the mixing passage, a control lever 18 fulcrumed on the body in engagement with a fuel inlet valve 9, lever engagement means 21 mounted on the diaphragm, duct means between the fuel chamber and the orifice, in which the diaphragm is actuated to control the fuel inlet valve by aspiration set up by the mixing passage airflow, the fuel inlet valve 10 directly acted upon by a spring 12. Specification 975,895 also is referred to.
Patent GB-1108326-A (GB)
Title: Improvements in or relating to wide band amplifiers
IPC: H03F3/191
Filed: 1965-07-27
Abstract: 1,108,326. Wide-band amplifiers; variable attenuators; correcting frequency response. SIEMENS A.G. 27 July, 1965 [28 July, 1964], No. 31920/65. Heading H3T and H3U. A wide-band amplifier (e.g. for 20-100 Mc/s. centred on 70 Mc/s.) with transformer coupling between transistor stages has a damped resonant circuit across one of the transformer windings to flatten the amplitude/frequency characteristic near the upper cut-off frequency. In Fig. 4, the stages are coupled by a transformer U whose primary is shunted by RLC which resonates at a frequency below the upper cut-off frequency of the amplifier, e.g. at half the cut-off frequency. Temperature compensation can be provided by a parallel LR circuit (Fig. 5, not shown) inserted in the lead between the RLC circuit and the transformer, using a negative temperature coefficient resistor. Formulae are given for calculating the values of the components for a given bandwidth and gain. The transformer preferably has a ring core to give maximum inductance and minimum leakage inductance; it may have separate windings instead of being an auto-transformer. The resonant circuit may comprise a series CR circuit across the secondary winding, usingtheleakage inductance as the inductive component. NPN transistors may be used. Gain control.-In a multi-stage amplifier, stages as above may be separated by variable attenuators arranged to operate successively, e.g. from the rectified output of the amplifier (Fig. 6, not shown). As the signal level rises, the last attenuator goes through its full range of adjustment before the previous one changes, and so on, as in Specification 944,682. This can be arranged by providing a threshold level of A.G.C. which increases towards the earlier stages of the amplifier, the maximum attenuation of each controlled attenuator being equal to the gain of the immediately following amplifier stage. Fig. 8, shows a suitable attenuator between two grounded-base stages T1, T2. The essential parts of the attenuator are a series resistor R1 and a shunt circuit comprising a diode RL and parallel CR circuit C2, R2. The effective impedance of the rectifier is varied by a bias voltage JR from the A.G.C. line. Capacitor C2 and a further shunt capacitor C11 are adjusted so that, in association with the stray capacitances and inductances, the impedance of the attenuator is approximately constant over the passband of the amplifier. The shape of the amplitude-frequency curve can be altered by adjusting C2.
Patent GB-287232-A (GB)
Title: The manufacture of trisazo dyestuffs
IPC: C09B31/22
Filed: 1926-12-16
Abstract: 287,232. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). Dec. 16, 1926. Addition to 248,230. Trisazo dyes; azo dyes, forming on the material.-The process of the parent Specification is extended to the manufacture of trisazo dyes containing 1 : 2-aminonaphtholether as well as its sulphonic acid as third component. and any derivative of 2-amino-5-naphthol-7-sulphonic acid as end component. In examples (1) aniline-3 : 6- disulphonic acid is diazotized. coupled with 1- naphthylamine-7-sulphonic acid, rediazotized, coupled with 1 : 2-aminonaphthol ethyl ether, and the disazo dyestuff thus obtained is diazotized and coupled with 2-phenylamino-5-naphthol-7- sulphonic acid in presence of pyridine ; the product dyes cotton a clear greenish-blue shade: the phenylamino derivative of 2 : 5 : 7-acid may be replaced by the acid itself or any other derivative, including aryl-, alkyl-, aralkyl-, and aroyl-amino derivatives, the symmetrical urea, 5 : 5<1> - dioxy-2 : 2<1> -dinaphthylamine-7 : 7<1>-disulphonic acid, m-and p-aminophenyl-1 :2-naphthimidazoI-5-oxv-7-sulphonic acids, and m and paminophenyl-1 : 2-naphthothiazole - 5 - oxy-7-sulphonic acids, (2) the disazo dye, aniline-3 : 6- disulphonic acid -> alpha-naphthylamine # 1 : 2- aminonaphtholethylether - 6 - sulphonic acid is diazotized and coupled with the ethylamino derivative of 2 : 5 : 7-acid in presence of pyridine ; the product dyes cotton a clear greenish-blue shade: similar products are obtained by using the diethylamino derivative, 5 : 5<1>-dioxy-2 : 2<1>- dinaphthylamine-7 :7<1>-disulphonic acid. the symmetrical urea or the mixed urea from 2 : 5 : 7- acid and ammonia or a substituted or unsubstituted arylamine, as end components, (3) the disazo dyestuff o-toluidine-disulphonic acid # 1 - naphthylamine - 7 - sulphonic acid # 1 : 2- aminonaphtholethylether - 6 . sulphonic acid is diazotized and coupled with m-aminophenyl-1 : 2- naphthimidazol-5-oxv-7-sulphonic acid in presence of pyridine; the product dyes cotton a bluish-green shade which can be diazotized on the fibre and developed with 1-phenyl-3-methyl-5-pyrazolone to a fast green, and (4) the dyestuff o-sulphanilic acid # 1-naphthylamine-7-sulphonic acid # 1 : 2-aminonaphtholethylether-6-sulphonic acid is diazotized and coupled with m-aminobenzoyl- 2 : 5 : 7-acid in presence of pyridine ; instead of the m-aminobenzoyl derivative, the p-aminobenzoyl derivative or the m- or p-aminophenyl- 5-oxy-1 : 2-naphthothiazole-7 -sulphonic acids may be used. 2-Diethylamino-5-naphthol-7-sulphonic acid is made by treating 2 : 5-dioxynaphthalene-7-sulphonic acid with diethylamine in the. presence of sodium bisulphite.
Patent GB-208722-A (GB)
Title: Improved process for the manufacture of perylene
Filed: 1923-12-20
Abstract: By heating b -dinapthol with phosphorus oxychloride and zinc, a product is formed which on distillation yields perylene together with other bodies such as dinaphthylene oxide.  The reaction may be carried out in vacuo or in a current of inert gas, and a substance such as quick lime may be added.  According to the example, a mixture of b -dinaphthol, phosphorus oxychloride and zinc dust is heated to 200 DEG  C.; the dry product is distilled in a retort at a temperature of 600 DEG  C.; the distillate, on crystallization from toluene, consists of perylene. Specifications 136,564, 165,770, 165,771, 191,363, and 208,721 are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) states that any dihydroxy compound of a -dinaphthyl or a derivative thereof may comprise the starting material; this subject-matter does not appear in the Specification as accepted.
Patent GB-1261067-A (GB)
Title: Improvements in and relating to methods of manufacturing semiconductor devices
IPC: H01L21/82
Filed: 1969-06-25
Abstract: 1,261,067. Zener diodes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 25 June, 1969 [27 June, 1968], No. 32065/69. Heading H1K. A Zener diode is formed by diffusing into one surface of a semi-conductor body side by side regions of opposite conductivity type to form (by lateral diffusion) a PN junction perpendicular to the surface. The properties of the diode are determined by the diffused regions since these are made to have lower resistivity than the substrate. The diffused zones may be T-shaped in plan, the small active junction being formed at the insection of the two stems and electrodes being provided on the bars. The diode may be formed in a junction-isolated integrated circuit which may also include transistors and diffused resistors. In one embodiment one of the diode zones is formed at the same time as an isolation zone and the other at the same time as the emitter zone of a transistor. In another embodiment one of the diode zones is formed simultaneously with the base zone of a transistor and the other simultaneously with the emitter zone of the transistor.