baber/WOPTO huggingface dataset:
Patent GB-1309990-A (GB)
Title: Method of ultrasonically bonding a semiconductor body terminal to  a load
IPC: B23K20/10
Filed: 1971-04-19
Abstract: 1309990 Welding by pressure HITACHI Ltd 19 April 1971 [2 March 1970] 22539/71 Heading B3R In ultrasonically bonding an electrode terminal on a semi-conductor body to a conductive lead, a metal layer is applied to the surface of the body opposite the terminal carrying surface, a vibration applying element is pressed into the metal layer, which is softer than the element, the element having at least one groove interrupting a working surface thereof which has a flat surface portion or portions adjacent the groove or grooves, and ultrasonic energy is applied to the element. The element has a hole 5 therein for connection to a vacuum to hold the semiconductor device over conductive leads, the semi-conductor device having a layer of soft metal, e.g. aluminium, gold or solder and the parallel grooves 6 are provided in the flat working face. The grooves taper away from the face and may be 20 microns deep and 250 microns maximum width. The grooves in other embodiments are replaced by mutually perpendicular grooves, grooves in concentric circles, a single spiral groove or radially arranged grooves. The linear grooves may be formed by grinding and the non-linear by electrical discharge machining and the element may be of tungsten carbide, titanium carbide or stainless steel.
Patent GB-1497181-A (GB)
Title: Gauging apparatus for laminar materials
IPC: G07D7/182
Filed: 1975-05-23
Abstract: 1497181 Measuring thickness of sheets DE LA RUE CROSFIELD Ltd 21 May 1976 [23 May 1975] 22540/75 Heading G1N The thickness of a sheet of strip material is determined by feeding it through the nip of a first, rigid roller 4 mounted on a fixed axis shaft 5 and a second roller 6 comprising a rigid ferrous rim 8 on a rubber disc 9, also mounted on a fixed axis shaft 7. The tickness of the test sheet distorts the rubber disc 9 and brings the rim 8 nearer to a detector 10 comprising two windings on a central rod core surrounded by a tubular outer core. One winding is A.C.-energized and the voltage induced in the second winding is inversely proportional to the thickness of the material between the rollers 4, 6. This output voltage is used to count the number of single sheets and to divert multiple layered sheets.
Patent GB-465553-A (GB)
Title: Method for the production of colloidal sulphur in the dry state and at different degrees of concentration
IPC: C01B17/10
Filed: 1936-08-15
Abstract: Colloidal suspensions of sulphur are dried or concentrated to any desired degree by spraying the suspension in a current of air or inert gas which may be heated to a temperature between 80 and 150 DEG C.  Preferably the spraying is effected in the presence of an antioxidant, such as sodium sulphite, which is added to the suspension or may be formed during the preparation of the suspension. If desired, the suspension may be previously concentrated or purified by centrifuging.
Patent GB-461136-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: B61L25/06
Filed: 1935-08-10
Abstract: 461,136. Electric signalling systems. STANDARD TELEPHONES & CABLES, Ltd., and BROWN, A. Aug. 10, 1935, No. 22593. [Class 40 (i)] In a system for indicating at a central point the condition of a number of units spaced along a single pair of conductors, the indicating units individual to the remote units are connected to the line in turn by a distributer which also controls the transmission of signals over the line to each unit in turn, the units disconnecting themselves from and connecting the next unit to the line. The indications are received on a group of relays, connected in turn to the line, which lock when energized. When all the relays of the group are set, the settings are transferred simultaneously to a second set of relays which control the indicators, this second set being released immediately before the transfer. In the Figure, the central station apparatus is indicated on the left. The apparatus at a single sub-station is shown between the dot-dash lines, and the apparatus beyond the final sub-station is shown on the right. The invention is applied to a system for indicating the occupation of railway tracksections and when a section is occupied the contact T is open. At the central station a distributer moves brushes C, D and E over their bank contacts. When brush E reaches its next contact, relay SA is connected to line and, if contact T is closed, the relay energizes (over contact OA, rectifier RA and contact T) and locks to brush D. In the next position of the distributer, the current over the line is reversed so that relay P is energized (over contact OA and rectifier RB). Relay O pulls up and when the distributer moves onto its next contact, relay OA energizes to connect the line to the next sub-station. A further step of brush E connects relay SB to the line, which is now extended to the next sub-station, and the cycle is repeated. When all the substations have been connected in turn, the distributer connects relay SYN to line and if the apparatus has functioned correctly the line is at this time extended to the apparatus at the right of the Figure. Relay SYN is operated. In the meantime brush C has moved' off its bank-commoning to release energized relays of the group DA-DG and when relay SYN operates certain of these are re-operated over contacts of energized relays SA-SG and lock to brush C. Relays DA-DG control the indicator and are arranged so that de-energized relays indicate engaged sections. If, therefore, relay SYN does not pull up, due to faulty operation of the apparatus or line trouble, all the relays DA-DG are de-energized and give " occupied " indications. In the next position of the distributer, brush D releases relays SA-SG and brush E connects alternating current to line to which relays AC at all stations respond. Relays ACA are energized, relays O and OA are released and the apparatus commences a fresh cycle. A system in which resetting of the remote units is effected by a pulse over a third wire is also described.
Patent GB-1369579-A (GB)
Title: Dibenzofuran and dibenzothiophen derivatives
IPC: C07D333/76
Filed: 1973-05-11
Abstract: 1369579 Substituted dibenzofurans and dibenzothiophenes MERCK PATENT GmbH 11 May 1973 [13 May 1972 16 Dec 1972] 22631/73 Heading C2C The invention comprises compounds of formula and their physiologically acceptable salts, wherein R<SP>1</SP> is CO 2 H, CHO or CH 2 OH, or a functional derivative thereof; R<SP>2</SP> and R<SP>3</SP> are each H or C 1-4  alkyl, or R<SP>3</SP> may be C 1-4  alkoxy, alkaroyl, monoalkylamino, dialkylamino or acylamino, or F, Cl, Br, I, OH, NH 2 , NO 2 , CN or CF 3 , provided that 1 or 2 of R<SP>2</SP>, R<SP>3</SP> is not H; and Y is O or S. The preparation of these compounds is given in numerous examples, which utilize substantially standard procedures; the preparation of intermediate 2-substituted dibenzofurans and dibenzothiophenes, is also exemplified. Therapeutic compositions having antiphlogistic, analgesic and antipyretic activity comprise compounds of the above formula, which may be administered orally, parenterally, rectally or topically.
Patent GB-1472339-A (GB)
Title: Apparatus and method for vacuum skin packaging
IPC: B65B11/52
Filed: 1975-05-23
Abstract: 1472339 Seaming non-metallic sheet material W R GRACE & CO 23 May 1975 [22 Aug 1974] 22634/75 Heading B5K [Also in Division B8] In apparatus for vacuum skin packaging an article 48 between opposed thermoplastics or other webs or laminates 16, 46, the webs are first drawn into cavities in opposed moulds 14, 212 by suction applied to holes 38, 24, and may be softened by heaters 43, 32; an article 48 is placed on the web in one cavity, and the moulds are brought together to define a packaging cavity 50 in which pressure is reduced via recess 19o and removable chamber 72. Webs 16, 46 are next released from the moulds, by ending the suction and possibly applying pressure at holes 38, 24, and are drawn tightly into contact with the article. The abutting peripheries of webs 16, 46 are bonded together by the heat and pressure applied by the moulds. Heat actuated adhesives may be used. Programme collapsing of the webs about article 48 is applied by varying the sizes of holes 38, 24. Various shapes of mould are disclosed, and the cavity walls and lips may have a release coating of a tetrafluoroethylene polymer, for example. The webs may be polyethylene, polypropylene, ethylene vinyl alcohol copolymers, nylon, PVC, or laminates thereof. A preferred material is polyethylene coated with a sealing substance such as an ethylene vinylacetate inter polymer. Cavity 50 may be flooded with an inert gas before evacuation.
Patent GB-480935-A (GB)
Title: Improvements in triturating machines
Filed: 1937-08-19
Abstract: 480,935. Disc mills. ROCA, M., and GUIX, E. Aug. 19, 1937, No. 22796. Convention date, Oct. 19, 1936. [Class 59] In a machine for disintegrating vulcanized indiarubber &c. by a fixed and rotating disc provided with groups of teeth 1 on opposed discs separated by free spaces 2, the number of groups of teeth on one disc are different from that on the other. As shown in the Figure, four groups of teeth 1 are indicated on the fixed disc there being five groups 1 on the opposed rotating disc.
Patent GB-221349-A (GB)
Title: Adjustable ankle shields for football boots
IPC: A43B5/18
Filed: 1923-09-12
Abstract: 221,349. Stoddart, J. A. Sept. 12, 1923. Guards for games.-An ankle guard for wear over football boots comprises two conical shields B formed with flanges E in which are cut slots D through which pass two securing straps A. The straps A are arranged to cross at the front and rear of the ankle.
Patent GB-614811-A (GB)
Title: Thread trimming and pull-off mechanism for sewing machines
IPC: D05B65/00
Filed: 1946-07-31
Abstract: 614,811. Sewing-machines. SINGER MANUFACTURING CO. July 31, 1946, No. 22887. Convention date, April 25. [Class 112] Thread-cutters and thread-end holders-In a twothread sewing-machine the under thread-handling mechanism is so arranged that when the machine comes to rest the needle-thread and under-thread extend from the work to that mechanism, and a thread-severing element in a single stroke successively cuts the needle-thread and pulls off and cuts the under-thread. The mechanism is described in connection with a buttonhole sewing-machine which is adapted for tacking by arranging for the stitching to be stopped before one side of the buttonhole is completed, the thread-severing element being actuated by the rotation of the usual turret carrying the stitch-forming elements ; instead of cutting needle and under-threads it may be applied to cut two looper-threads in a three-thread machine. In the arrangement shown in plan in Fig. 3, the stitchforming devices, mounted on a turret 25, include a needle-loop detainer 28 on which the needle-loop remains when stitching ceases. The thread-severing device comprises blades 61, 68 (see Fig. 12) carried by arms 59, 65 on a vertical spindle 58 and a fixed blade 70 carried by an arm 71 which can be adjusted to some extent about the axis of the spindle 58. The spindle is rotated clockwise, as the turret rotates in the same direction, by an arm 80 engaging a cam member 83 and carrying a pinion 77 meshing with a toothed sector 76 on the spindle 58 ; the spindle is returned by a spring when the arm 80 leaves the cam 83, and on the return rotation of the turret the arm 80 pushes the cam aside against a spring. The end of the blade 61 has a sharp edge 62 and a blunt recessed portion 63, the latter engaging the free limb of the needle-loop to carry it clear of the part 62 which cuts the limb that remains attached to the work. The blade 61 and the arm 65 have notches to engage the under-thread to pull off a length during the continued rotation of the spindle 58, this thread being finally cut by the blade 68 engaging the fixed blade 70, after a travel which may be varied by adjusting the fixed blade The mechanism may be readily adapted for operation by the final reverse movement of the turret, the stitching being carried out along what would be the second side of a buttonhole. Threads, controlling otherwise than in stitchforming-A length of needle-thread is pulled off from the supply when the work-clamp is opened, by a rod, connected to the clamp, which releases a cam arm to allow a thread nipper to close and engages the thread between the nipper and the supply.
Patent GB-939238-A (GB)
Title: Improvements in or relating to fuel cells
IPC: H01M4/86
Filed: 1960-06-30
Abstract: An oxygen electrode for a fuel cell comprises a porous matrix of nickel/silver alloy (10-50% Ni., 90-50% Ag) formed from mixed elemental powder, of 375 mesh (U.S.) and compacted at from 200-100 p.s.i. (preferably 200-400) and sintered for 20 minutes at 450 DEG C.  A grid of expanded metal, metal screen or other support may be incorporated.  Specification 936,146 is referred to.
Patent GB-1185386-A (GB)
Title: Abrasive Scouring Cleanser Compositions.
IPC: C11D17/00
Filed: 1967-05-17
Abstract: 1,185,386. Abrasive scouring cleanser. COLGATE-PALMOLIVE CO. 17 May, 1967 [18 May, 1966], No. 22965/67. Heading C5D. An abrasive scouring cleanser composition in the form of a dry powder comprises at least 45% of a water-insoluble inorganic siliceous abrasive material having a particle size of less than 0-5 mm., 0À1-50% of a dry water-soluble compound which, when dissolved in water, liberates hypobromite ions, and 0À5-15% of a water-soluble organic detergent stable in the presence of the hypobromite-liberating compound. Suitable hypobromite-liberating compounds are N-bromoimides (e.g. N-bromosuccinimide, N-bromocyanuric acids and salts thereof and N-bromohydantoins), tribromomelamine, lithium hypobromite, brominated trisodium phosphate (i.e. reaction product of sodium hypobromite and trisodium phosphate), sodium p-toluenesulphonate-bromamine-trihydrate, calcium hypobromite and N-bromo-N<SP>1</SP>- chloroimides. The abrasive material may be silica, feldspar, pumice, volcanic ash, diatomaceous earth, bentonite, talc or mixtures thereof. The organic detergent may be anionic, cationic, non-ionic or amphoteric and examples of each class are given. The cleanser composition may contain additional ingredients such as inorganic builder salts, sequestering agents (e.g. nitrilotriacetic acid, ethylene diamine tetra-acetic acid, diethylenetriamine pentaacetic acid and their salts), fillers (e.g. wood pulp, sawdust, magnesite or whiting), sodium carboxymethylcellulose, anti-caking agents and optical brighteners.
Patent GB-1082787-A (GB)
Title: Electrical system
Inventor: HOUPT GROVER KREWSON
IPC: G05B11/01
Filed: 1966-05-24
Abstract: 1,082,787. Automatic voltage control. AUTOMATIC TIMING & CONTROLS Inc. May 24, 1966, No. 23027/66. Heading G3R. [Also in Division G1] A voltage regulator 14 (Fig. 2) produces two regulated positive voltages and one negative voltage. The smaller of the positive voltages, on lead 27, is regulated by the combined effects of transistors 54, 56. The base voltage of transistor 54 is controlled by a Zener diode 50, and its emitter voltage is maintained at the same value by automatic adjustment of emitter-collector current of transistor 56 to vary the voltage drop across resistor 57, between the input and output voltages. The regulated voltage on lead 27 is fed to the emitter of transistor 41, so that together with transistor 46 it regulates the voltage at + V. D. C. The voltage at - V. D. C. is regulated by the combination of Zener diode 42 and transistor 48. The circuit includes current-limiting resistors 40, 44; capacitors 49, 58 prevent oscillation due to feedback.
Patent GB-1175665-A (GB)
Title: Improvements in or relating to apparatus for use in Measuring the Density or Pressure of Fluids
Inventor: ABBOTTS WILLIAM EDWARD
IPC: G01N9/00
Filed: 1966-05-24
Abstract: 1,175,665. Measuring fluid-pressure and density electrically. SOLARTRON ELECTRONIC GROUP Ltd. May 16, 1967 [May 24, 1966], No.23073/66. Heading G1N. In a transducer having a hollow ferro-magnetic body 10 which is caused to vibrate by a drive coil 13 at a frequency dependent upon the density or pressure of a surrounding fluid, and has these vibrations detected by a pick-up coil 17, the two coils each have a respective magnetic shunt 16, 19 which with the adjacent portions of the body wall completes the flux path of the associated coil, and, prevents flux from one coil passing through the other. The coils 13, 17 are wound on permanent magnets 14, 18 to give a bias field, or on ferromagnetic cores carrying D.C. bias windings. The shunts 16, 19 may be soft iron, permanent magnets, coils on soft iron cores, or tubes of magnetic material containing a coil; and there may be more than one shunt for each coil 13, 17. The assembly of cores, coils and shunts is potted in resin. An amplifier receives the output of the pick-up coil 17 and energizes the drive coil 13 to maintain resonant vibrations. The wall of the body 10 is thick for measuring liquid density; thin for measuring gas density, the gas being permitted to enter the body; and thin with a reference gas inside for measuring gas pressure. The body may be cylindrical, frusto-conical, of an elliptic crosssection cylinder.
Patent GB-154385-A (GB)
Title: Improvements in cam-shaft mountings for internal combustion engines
IPC: F01L1/047
Filed: 1919-09-19
Abstract: 154,385. Buckingham, J. F. Sept. 19, 1919. Valve-gear.-In order to allow removal of the cam shaft without dismantling the crank case, the shaft F is made shorter than the distance between the end walls of the crank case, its bearings being formed in inwardly projecting caps N, and a T- shaped slot is made in the side of the crank case, so that when the caps N have been removed, the shaft, together with its timing-gear M, may be removed radially through the slot. The invention is shown applied to the crank case described in Specification 154,384.
Patent GB-1274281-A (GB)
Title: Substituted benzoxazines and benzothiazines
Inventor: KRAPCHO JOHN
IPC: C07D279/04
Filed: 1969-05-06
Abstract: 1,274,281. Benzoxazines and benzothiazines. E. R. SQUIBB & SONS Inc. 6 May, 1969, No. 23107/69. Heading C2C. Novel compounds of the Formula I (in which Ar is (x<SP>1</SP>) n -substituted aryl, R is H, C 1-8  alkyl or (X<SP>2</SP>) n -substituted aryl, R<SP>1</SP> and R<SP>11</SP> are both H or taken together represent oxo, Y is O, S, SO or SO 2 , each of X, X<SP>1</SP> and X<SP>2</SP> is H, C 1-8  alkyl, C 1-8  alkoxy, NH 2 , di-(C 1-8  alkyl)- amino, halogen, C 1-8  alkylthio, OH, CN, NO 2  or CF3, n is 1 to 3, r is 0 to 3, A is C 1-8  alkylene and B is a basic nitrogen-containing radical) and their non-toxic acid addition and quaternary ammonium salts and optical antipodes, are prepared by reacting a compound of Formula II with a compound of Formula III (in which Y<SP>1</SP> is O or S), if required, reducing a resulting compound I in which R<SP>1</SP> and R<SP>11</SP> together represent oxo to form a corresponding compound I in which R<SP>1</SP> and R<SP>11</SP> are both H, and/or, if required, oxidizing a compound I in which Y is S with potassium permanganate or hydrogen peroxide to form a corresponding compound I in which Y is SO or SO 2 , and/or, if required, forming an acid addition or quaternary ammonium salt of a free base. N<SP>1</SP> - Benzylidene - N,N - dimethylethylenediamine is prepared by reacting benzaldehyde with N,N-dimethylethylenediamine. Pharmaceutical compositions having central nervous system modifying activity, for oral or parenteral administration, comprise a compound I, or a physiologically acceptable salt thereof, together with a carrier. Compounds I also have antibacterial activity.
Patent GB-252113-A (GB)
Title: Improvements in or relating to wash-basins and holders therefor
IPC: A47K1/10
Filed: 1925-09-16
Abstract: 252,113. Ludbrook, J. May 18, 1925, [Convention date]. Baths fitted with lavatory basins.-A wash-basin 6 has pivot pins 7 located at one side of a diameter and mounted in the walls 2 of a platform 1, so that the basin is normally received in a recess 5, the remainder of the basin projecting beyond the platform which is supported by members 4 from the upper edges of a bath 12. Handles 8, 10 are provided, and the members 4 are lined with soft material.
Patent GB-158188-A (GB)
Title: Improvements relating to tobacco pipes
IPC: A24F5/10
Filed: 1920-08-06
Abstract: 158,188. Hayes, H. J. Aug. 6, 1920. Tobacco pipes.-4 bowl cap is provided with a reflecting surface 3 and is hinged or adjustably attached to the bowl 1 so as to reflect the light of the burning tobacco to the eye of the smoker and to serve as a wind guard.
Patent GB-1384470-A (GB)
Title: Water-in-oil polymer emulsion
IPC: C08F2/32
Filed: 1972-05-17
Abstract: 1384470 Water-in-oil emulsions NALCO CHEMICAL CO 17 May 1972 [12 July 1971] 23208/72 Heading C3P  A water-in-oil emulsion comprises an inert hydrophobic liquid ranging from 5À0 to 26% by weight of the emulsion and an aqueous phase excluding emulsifier ranging from 74 to 95% by weight of the emulsion which phase comprises a synthetic water soluble vinyl addition polymer having a concentration between 20 and 50% by weight of the emulsion and water ranging between 23 and 45% by weight of the emulsion; and additionally a water-in-oil emulsifying agent having a concentration between 0À1 and 30% by weight of the emulsion. The emulsion may be prepared by inverse emulsion polymerization using a water-in-oil polymerization mixture of the appropriate composition. The preferred hydrophobic liquid is a branched-chain isoparaffinic solvent. Examples describe the copolymerization of acrylamide with acrylic or methacrylic acid and the homopolymerization of dimethylaminoethyl methacrylate and styrene sulphonic acid. Sorbitan monostearate is used as the emulsifier and azobis-(isobutyronitrile) as the catalyst. The emulsion may be inverted in water by the use of a surfactant to form a solution of the polymer.
Patent GB-806490-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: GUNERATNE PIYATILLEKE PERERA
IPC: G21C17/10
Filed: 1956-07-27
Abstract: 806,490. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHTHORITY. June 27, 1957 [July 27, 1956], No. 23226/56. Class 39(4). To permit measurement of the temperature of a sheath 8 enclosing a fuel member 1 an eccentric fin 4 is formed on the sheath between a pair of the usual fins 3 and a thermocouple cable 7 is wedged within a hole 5 in the fin 4.
Patent GB-149144-A (GB)
Title: Improvements in sparking plugs for internal combustion engines
IPC: H01T13/16
Filed: 1919-09-22
Abstract: 149,144. Trigg, P. E. Sept. 22, 1919. Sparking-plugs.-To promote cooling the body of the plug is provided with a number of disks 2 spaced by washers 5 and held by bolts and nuts 4. The upper and lower disks have a circular opening, and those intermediate thereto hexagonal openings to fit the corresponding portions of the plug. The cooling effect may be increased by perforating the disks.
Patent GB-443152-A (GB)
Title: Improvements in and relating to control apparatus for regulating transformers
IPC: H01F29/06
Filed: 1934-08-14
Abstract: 443,152. Transformers. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin, and RISSIK, J. W., Swallow's Nest, Denbridge Road, Bickley, Kent. Aug. 14, 1934, No. 23445. Addition to 425,510. [Class 38 (ii)] Transformers 3 for stage lighting &c. are mounted behind a panel 7 and are regulated by a hand lever 8 projecting through an opening in the panel and connected through links 9 with a slidable contact 5 co-operating with the winding. In a modification, Fig. 2, the hand lever is geared to radial arms 16 carrying contact rollers 15 co-operating with the winding 14. Alternatively, a fixed contact co-operating with a movable winding operated by the hand lever may be used.