baber/WOPTO huggingface dataset:
Patent GB-458314-A (GB)
Title: Process for the manufacture of alloys containing boron
IPC: C22C33/06
Filed: 1935-07-02
Abstract: Alloys containing boron are prepared by mixing with an alkaline earth boride, such as calcium or barium boride, the metal or metals to be alloyed with the boron, in metallic form or in the form of oxides or salts, and bringing this mixture under a layer of flux to a temperature sufficient to cause the fusion of the whole and not below 1000 DEG  C.  When using oxides or salts, these may be reduced by the boride itself, employed in quantity sufficient to effect the reduction and to provide the requisite proportion of boron in the final alloy, or by agents such as aluminium, magnesium, calcium, sodium, carbon or silicon in the presence of a suitable quantity of boride.  The reaction may be effected in an electric furnace or aluminothermically.  The flux may be anhydrous borax or boric anhydride.  Binary alloys of boron with iron, aluminium, nickel, cobalt, manganese, chromium, molybdenum, tungsten, vanadium, titanium, tantalum, or silicon and ternary or more complex alloys of boron with any of these elements or copper, zinc, tin, antimony, or lead may be produced.
Patent GB-261816-A (GB)
Title: Improvements in and relating to magnetic slot wedges for dynamo electric machines
IPC: H02K3/493
Filed: 1925-07-27
Abstract: 261,816. British Thomson-Houston Co., Ltd., Whitaker, F. P., Martin, R. I., and Robinson, E. E. July 27, 1925. Coils and conductors. - Magnetic slot wedges are formed of composite material made from laminae of cotton, asbestos &c. bonded with synthetic resin or other binder, magnetic material in powdered or wire form being interposed between the laminae and the whole pressed into the requisite shape. As shown, Fig. 1, the wedge is made from a strip of magnetic cloth 1, and a strip of cotton or other woven fabric 2 bonded with synthetic resin &c., the strips being rolled together and thereafter subjected to heat and pressure.
Patent GB-906578-A (GB)
Title: Improvements in or relating to x-ray apparatus
IPC: H05G1/46
Filed: 1961-05-26
Abstract: 906,578. Control systems for X-ray apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 26, 1961 [May 30, 1960], No. 19094/61. Class 38 (4). [Also in Group XX] In X-ray apparatus having independent control members for adjustment of voltage, current, and exposure time, and a safety device to prevent overload, a disconnectable coupling is provided between the current and exposure time controls, such that variation in one of these quantities causes a corresponding variation in the other so that their product remains constant. Fig. 1 shows the circuit diagram. The X-ray tube 10 is supplied by the secondary 11 of the H.T. transformer 8, and voltage loss on loading the tube is compensated for by a voltage control 9 on the control transformer 3, acting through a variable resistor 24. Voltage loss due to tube current is compensated for by an auxiliary voltage derived from winding 25 of transformer 3 coupled to the filament current control 27 A time switch 19 operates an electromagnetic switch 22 in the H.T. transformer circuit. Switch 19 and control 27 are coupled together by a disconnectable coupling 28, the coupling being made after suitable choice of values has been made to give the required current-time product. This then remains constant as the time is varied, a safety device giving warning if the tube is overloaded. Fig. 2 shows the mechanical arrangement, knob 33 adjusting the current, knob 34 the exposure time, and knob 35 the applied voltage. Knobs 33, 35 also operate the respective control members 26, 9 functioning as described with respect to Fig. 1. Between shafts 30 (knob 33) and 31 (knob 34) there is provided a differential gear-wheel system 36 forming the coupling 28. When knob 46 is depressed, the bevel wheel 44 at the lower end of shaft 45 brings the coupling into operation. The rotatable drum 41 of the differential system is then held fixed, the value of the current X time product being shown on a dial 42 visible through an opening 47 in the wall 29. When the coupling is interrupted by withdrawing knob 46, a variation in either the current or time setting causes drum 41 to turn, and the variation is then read on the dial 42. A system of potentiometers 49, 51, 56, 57, operated by shafts 30, 31, 32 are connected as shown so as to act as a safety-load indicator, giving a reading on a meter 60.
Patent GB-426532-A (GB)
Title: Improvements in and relating to universal joints
IPC: F16D3/34
Filed: 1934-06-28
Abstract: 426,532. Universal joints. FENAILLE, P., 44, Avenue Gabriel, Paris. June 28, 1934, Nos. 19099 and 19100. Convention dates, June 28, 1933 and Feb. 8, 1934. [Class 80 (ii)] In a universal joint comprising grooved intermediate members 4, 9 engaged by forks 2, 11 on shafts 1, 12 and themselves having a slot and tenon connection 5, 8, the members 4, 9 are cut away at 13, 14 to reduce the length of the joint. Spherical caps 15, 16 carried by the two shafts fit into each other and are maintained in position by an assembling-piece 20 tightened against the inner cap by a spring 22. Fig. 5 shows a modification in which the outer cap has a cylindrical portion 25 receiving two rings 26, 27, with spherical inner surfaces, of copper or other antifriction metal kept pressed against the inner spherical member 16 by a spring 22. The fork 11 is secured by pins 28 to the spherical member 16 which has a socket splined to the shaft 12. In another modification the fork is made integral with the splined socket which has a flange to which a casing corresponding to the casing 25 is riveted. To facilitate assembly the grooves in the intermediate members 4, 9 have flats 30, Fig. 6 to clear the points of the forks 2, 11. Specification 282,051, [Class 80 (ii)], is referred to.
Patent GB-714013-A (GB)
Title: Improvements in creep arresting and guage adjusting fastenings for railway track
IPC: E01B9/34
Filed: 1952-07-29
Abstract: 714,013. Securing railway rails. KHALIL, M. July 29, 1952 [Aug. 13, 1951], No. 19140/52. Class 104 (2) A railway rail fastening comprises a spring steel bar or strip C having one end E bent in a loop to serve as a rail holding clip and the other end G formed as a cam to bear against the edge of the rail simultaneously with the end E exerting a resilient pressure on the rail A. The fastening C is held on to a sleeper of concrete, wood or metal, by a rivet, bolt, screw or spike passing through an eccentrically disposed hole D, Fig. 13, in the cam-shaped end G. In an alternative construction shown in Figs. 17, 18 and 20 a square bar C<SP>2</SP> tapered at each end has one end G<SP>2</SP> formed as a loop O and .the other end E<SP>2</SP> bent over to form the rail holding clip. A washer member L having a hexagonal collar M and formed with a cylindrical portion N, which fits into the loop O of the bar C<SP>2</SP>, has an eccentrically bored pivot hole J so that when the rail fastening is in position rotation of the member will effect movement of the bar C<SP>2</SP> towards or away from the rail A. In a further construction a pin P formed or secured to a plate C', Figs. 22 and 23, fits into a key hole slot D<SP>1</SP> in the base plate or rail seat B on the sleeper to hold the fastener in position. In a further arrangement shown in Figs. 28 and 29 in which the cam portion G<SP>4</SP> merely serves as a means of pressing the rail A against shoulder S formed on the .sleeper or base-plate the cam portion of the plate is formed with an acute corner to limit the rotation of the fastener. The pin P may be attached to the underside of the plate C by forging, pressing, welding or riveting.
Patent GB-1435316-A (GB)
Title: Dc motor control system
IPC: H02P7/29
Filed: 1973-04-24
Abstract: 1435316 DC motor control BROWN BOVERI & CIE AG 24 April 1973 [25 April 1972] 19215/73 Heading H2J A D.C. motor control system comprises two D.C. chopper regulators including a series circuit comprising two thyristors T 1  T 2  (Fig. 1) each with an antiparallel reverse current diode D 1  D 2 , connected across a D.C. source 1, 2. A D.C. motor 3 in series with an inductance L 1  is connected across T 2  and a common quenching circuit is provided by a series resonance circuit comprising a capacitor C 1  and an inductor L 2 . The resonance circuit oscillates through T 1  which is quenched upon completion of half a period of oscillation. C 1  is then changed in the opposite direction through diode D 2 . The speed of the motor is controlled by variation in the mark/space ratio of the pulses provided by thyristor T 1 . and when regenerative braking takes place T 2  controls the armature current and during the "OFF" periods of T 2  the charge on C 1  flows through diode D 1  back to the supply. L 2 , C 1  also function to quench T 2 . In a modification Fig. 2 (not shown) components L 3 L 4 , D 3 D 4  and T 3 T 4  are added to charge capacitor C 1  from the supply instead of from the regenerative voltage of the motor during braking, whereby to give consistent quenching of T 2  by the charge in C 1 , otherwise if the motor is rotating too slowly the voltage generated and hence the charge in C 1  will be too low for this purpose. In another embodiment Fig. 3 (not shown) the L 2 C 1  resonance circuit is shunted by an anti-parallel pair of thyristors (T 5 T 6 ) or a triac, in series with a further inductor (L 3 ). Alternatively each chopper may comprise a triac or a pair of antiparallel SCRs.
Patent GB-961329-A (GB)
Title: Improvements in electromagnetic relays
Inventor: SAUER HANS
IPC: H01H50/24
Filed: 1961-05-29
Abstract: 961,329. Electromagnetic relays. SCHALTBAU-GESELLSCHAFT m.b.H. May 29, 1961, No. 19276/61. Heading H2B. In an electromagnetic relay comprising a U- shaped yoke 1 and a core 3, the armature 4 is pivoted on both legs 5 of the yoke and is urged into bearing engagement with the legs by an adjustable return spring 10. The armature is counterbalanced by a depending stirrup 7 which actuates a contact spring assembly (not shown) mounted beneath the yoke.
Patent GB-1169596-A (GB)
Title: Improvements in or relating to Automatic Control Systems
Inventor: MEREDITH JAMES FREDERICK
IPC: G05D1/08
Filed: 1967-04-26
Abstract: 1,169,596. Adaptive control. SMITHS INDUSTRIES Ltd. April 26, 1968 [April 26, 1967], No. 19277/67. Heading G3R. In error-actuated automatic control of a system recorded control signals are applied to a model the output of which is compared with the output of the system, any difference being automatically adjusted to a minimum by repeated adjustment of the model characteristics with corresponding adjustment of system characteristics. As shown, signals, e.g. from an automatic pilot, are applied at 1 and control the elevators of an aircraft 10 through a suitably damped controller 5-9. A corresponding rate of pitch of the aircraft is produced by virtue of rate of pitch signals 0 applied at 4. The characteristics of the controller, which may be varied in dependence on altitude, need to be maintained appropriate to the characteristics of the aircraft which may vary, e.g. due to changes of airspeed. The elevator control signals are stored digitally at 17 so that they are available for periodic application to a model 12, having characteristics similar to the aircraft but possibly faster in operation, which produces signals for comparison with the aircraft rate of turn signals which are also stored at 17. To ensure that the comparisons are made over a wide range of conditions, a perturbation signal having a wide frequency range is applied to the system at 2. The effect of gusts on the comparison is compensated for by feedback through devices 15, 20. Any differences resulting from the comparison are integrated over periods at 14 and applied to a digital computer section 22 which makes repeated adjustments of a number of response characteristics of model 12 through channel 23 until a minimum is obtained. The response characteristics of the model 12, controller 5-9, and devices 15 and 20 are then set to corresponding optimum values by the computer through channel 25. The digital computer section 26 programmes the most suitable mode of computation. For example, recording and computation may be arranged to take place during successive or overlapping time periods according to the delay which can be tolerated. Also, instead of cancelling each record before making the next, it may be attenuated and added to the next.
Patent GB-699241-A (GB)
Title: Improvements in therapeutic electro-stimulator
IPC: A61N1/32
Filed: 1950-08-02
Abstract: 699,241. Electro-medical appliances. REITER, R. Aug. 2, 1950, No. 19308/50. Class 81 (ii). A periodic source of unidirectional electrical energy is intermittently connected to electrodes by which connection to a patient may be made, the intermittent connection being such that in use the patient is supplied with periodical bursts of electrical energy, each burst comprising a series of pulses. As shown in Fig. 1 current from the secondary of a mains transformer flows through a half-wave rectifier 12 and a potentiometer 13. The voltage at the electrodes 18 is variable by the potentiometer and a rotary contact maker mechanism 19 produces pulses of current in the circuit so that the energy is applied to the electrodes 18, and to the patient, in the form of pulse trains.
Patent GB-1434795-A (GB)
Title: Outboard spanning shouldered wicket
IPC: B65B43/14
Filed: 1973-04-24
Abstract: 1434795 Bag wickets UNION CARBIDE CORP 24 April 1973 [24 April 1972] 19396/73 Heading B8C [Also in Divisions E2 and F2] A wicket comprises a pair of legs 23, 25 extending through holes 27, 29 in a stack of bags or wrapping sheets, a cross member 15 of greater span than the distance between the legs and connected to a pair of restraining members 17, 19 bearing against the edge of the topmost bag or sheet, and shoulder members 31, 35, 39, and 33, 37, 41 extending upwardly from the legs and connecting the legs to the restraining members 17, 19. The restraining members 17, 19 may be inclined or perpendicular to the cross member. The middle of the cross member may be bent to form another restraining member. The wicket can be integrally formed from wire or rod stock. Alternatively a rod may be welded to the cross member to form a restraining member. An air nozzle which opens the topmost bag can bear against the cross member or the wicket can be weighted.
Patent GB-624981-A (GB)
Title: Improvements in pressure cookers
IPC: A47J27/09
Filed: 1947-07-21
Abstract: 624,981. Safety valves ; pressure-relieving devices for fluids. KAREN PRODUCTS, Inc. July 21, 1947, No. 19431. Convention date, Jan. 21, 1946. [Class 135] A relief valve 17, Fig. 11, for a pressure cooker is loaded by a weight 23 supported on the valve and at a point spaced therefrom, and the distance of the second point of support from the valve is variable so that the effective pressure exerted on the valve can be varied to control the cooking pressure. The weight 23 consists of a rotatable knob which carries on its undersurfaces a series of projections 25a ... e, each projection being situated at a different distance from the centre of the under-surface. The knob rests on the ball 17 and on the projection that is situated in a groove 19 in an upstanding part of the lid of the cooker. The loading on the ball is varied in steps by turning the knob until the next projection engages in groove 19. At one position of the knob, the ball engages in a depression in the knob and is thus relieved of the loading pressure, and the valve will then blow at any pressure above atmospheric. Pressure-relieving devices.-A boss 21, over which the knob engages, is hollow but is sealed at its outer end by a disk 32, Fig. 13, of copper-plated steel, soldered in position. When the pressure in the cooker becomes excessive, the temperature will rise correspondingly, the solder will melt, and the disc will be blown out to the restraining fingers 34.
Patent GB-1173114-A (GB)
Title: A Label Holder
IPC: G09F3/18
Filed: 1968-04-25
Abstract: 1,173,114. Label holder. VAL-REX. 25 April, 1968 [27 April, 1967], No. 19604/68. Heading B8F. [Also in Division E2] A label holder comprises a resilient member 1 folded about a central zone 3, each half so formed having on its inner side flat bosses 3a, 3b with a recess 4 to enclose a label 5 and cooperating means 9, 11 for fixing them together and also means for attaching the holder to a card or the like. Leg 7b has two male members 9 which pass through holes 10 near the edge of a card F to be identified (Fig. 2, not shown) and mate with and are retained by friction in holes 11 in leg 7a, the card having its edge accommodated in a space 8 (Fig. 3, not shown) formed between the legs. The member may be moulded from a transparent plastics material through which the label is viewed or opaque plastic, in which case an open window 16 is provided in the recess. In a second embodiment (Fig. 3, not shown), an annular bridle 12 surrounds each of the holes on the inner side of leg 7a and engages the holes of the card F when the two halves of the member are mated. The male members may each terminate in a domed head 13 (Figs. 4 and 5, not shown) and the holes may be in the form of a stepped opening. A part 14 of the latter retains the domed head of the male member when it is force-fitted into the hole. In a fourth embodiment (Fig. 6, not shown), a frame 3c projects from the boss 3b and positions and retains the label in the recess of the boss 3a. The male members have a cylindrical body 18a and a truncated head 18 which is force fitted through the truncated entry of an annular tie 3f surrounding the hole on the inner side of the opposite leg.
Patent GB-778173-A (GB)
Title: Improvements in or relating to dispensing apparatus for liquid fuel
IPC: B67D7/04
Filed: 1954-01-12
Abstract: 778,173. Dispensing liquids. TOKHEIM CORPORATION. Jan. 12, 1954 [Jan. 15, 1953], No. 19742/55. Divided out of 778,171. Class 116. A valveless impeller pump 30 or 80, Fig. 1, submerged in a liquid fuel tank 76 can build up sufficient pressure in a delivery pipe 90 and in a delivery space 208, Fig. 3, to operate check valves 222, 224 only after any air or gas has been returned to the tank through a passage 192 and a vent 240 which, when passing liquid, provides sufficient back pressure to operate the check valves. In the form illustrated the check valves serve a space 216 which delivers to the system described in Specification 778,171 and the stem 230 of the valve 224 is hollow and contains a relief valve. Each valve 222, 226 forms, together with its seat, a sub-assembly which can be removed, for replacement, by removing screw plugs 236. A further tank 26, Fig. 1, is connected by a syphon 34 to a tank 32 and the syphon is primed as described in Specification 778,174. The pump is a three-stage impeller with a filtered and baffled intake 182, 180 and delivering through an annular passage 144 serving to cool the electric motor 140 by which it is driven. A labyrinth 156, 158 seals the pump delivery from a chamber vented to the tank by a passage 160 and sealed from the shaft 146 of the motor by a spring biased seal 152, 154. A junction box 94, Fig. 3, for the motor supply cable 187, swivels on the upper end of a conduit 92 through which the cable 187 passes. Specifications 753,542 and 778,172 also are referred to.
Patent GB-1133452-A (GB)
Title: Adhesive sheet materials such as adhesive tape
IPC: C09J7/29
Filed: 1965-07-28
Abstract: 1,133,452. Laminates. MINNESOTA MINING & MFG. CO. 28 July, 1965 [13 Aug., 1964], No. 19745/68. Divided out of 1,133,451. Heading B5N. The subject-matter of the Specification is identical with that of Specification 1,133,451, but the claims are directed to an embossable sheet material comprising a base sheet having a front surface and a back surface, the base sheet being formed of a transparent rigid organic resin having a structure and composition such that permanent cold flow deformation thereof to form embossments thereon renders such resin opaque in the areas of deformation of the embossments, a transparent top coat having a first colouring agent uniformly distributed therethrough and carried by the base sheet on the front surface thereof, and a background coat having a second colouring agent uniformly distributed therethrough and carried by the base sheet on the rear surface thereof, whereby the sheet material is embossable to provide opaque embossments having the colour of the first colouring agent on a field having the colour that is a combination of the colour of the first colouring agent and the colour of the background coat.
Patent GB-374306-A (GB)
Title: Improvements in the manufacture of evaporators for cooling air in refrigerating chambers or cabinets
IPC: F25B39/02
Filed: 1931-07-09
Abstract: 374,306. Refrigerating. SEARLE, R., 40, Carson Road, West Dulwich, London. July 9, 1931, No. 19770. [Classes 29 and 64 (iii).] Evaporators.-The evaporator coil of a refrigerator cabinet is supported in grooves g pressed in the corrugations on one or both sides of a plate d. Specification 356,406 is referred to.
Patent GB-357977-A (GB)
Title: Improvements in anodes
IPC: C25D17/10
Filed: 1930-06-30
Abstract: 357,977. Electroplating. UDYLITE PROCESS CO., 3220, Bellevue Avenue, Detroit, Michigan, U.S.A.-(Assignees of Wagner, J. O. ; 7338, Euclid Avenue, and Ascher, A. S. ; 4311, Prospect Avenue, both in Cleveland, Ohio, U.S.A.) June 30, 1930, No. 19779. Convention date, Feb. 20. [Class 41.] A container for soluble anode material for electroplating consists of a perforated cage of relatively long and narrow cross section into the top of which relatively large anode units of regular shape such as balls are fed by hand, the units descending as they dissolve. The anode units preferably form a single vertical stack, as shown. The balls may be of 2 inches diameter for nickel or cadmium plating or ¢ inch diameter for gold plating. The cage is suspended by a conducting member 1 which may be welded thereto at several points. When cages of non- conducting material are employed, conducting members are provided to make contact with each anode unit.
Patent GB-141589-A (GB)
Title: Improvements in or connected with rudders for steering ships
IPC: B63H25/38
Filed: 1919-08-12
Abstract: 141,589. McNaught, A. Aug. 12, 1919. Ruddders.-A rudder comprises two spaced and staved balanced plates detachably mounted on the stern post with the steering post connexion aft of the supports. Two plates 8 are stayed by cross members 9, 10, 11 to which are riveted plates each carrying one half of a bearing 12. The bearing and cap 14 embrace journals 7 turned on the stern post, collars 13 on the post taking the weight of the rudder. The rudder post 16 is supported at 17 and turns on an axis in line with the post 4, the lower part being offset for connexion with the top cross plates 9 aft of the post 4. Specifications 6278/87 and 101,733 are referred to.
Patent GB-942499-A (GB)
Title: Coloration of hair and other fibrous materials
Inventor: DEADMAN LIONEL LESLIE FREDERIC
IPC: D06P3/30
Filed: 1961-06-01
Abstract: Hair and other fibrous material, e.g. other keratinous materials, wool, cellulose and synthetic fibres, is dyed by impregnating the hair or other fibres with a solution of an ammonia or amine coordination complex of copper and thereafter treating the fibres with a substance which combines with copper to form an insoluble coloured compound.  The specified after-treating substances are dithio-oxamide and sodium diethyl dithiocarbamate.  The copper may be applied as a complex with ethylene diamine but preferably an ammoniacal solution of a copper salt, e.g. halide or sulphate, oxide or hydroxide is used.  The second treatment may be from a solution, e.g. in water.  The solutions may be applied at room or elevated temperature and may contain surfactants, e.g. sodium lauryl sulphate and ethylene oxide derivatives of fatty alcohols, to assist the dyeing operation and in addition may be in the form of a cream or gel containing natural gums, carboxymethyl cellulose and polyalkylene glycols.  Examples of dyeing hair are given.