baber/WOPTO huggingface dataset:
Patent GB-377671-A (GB)
Title: Improvements in or relating to electric power supply systems
IPC: H02J7/34
Filed: 1931-04-20
Abstract: 377,671. Supply systems. GENERAL ELECTRIC CO., Ltd. and DAVIS, B., Magnet House, Kingsway, London. April 20, 1931, Nos. 11677 and 31981. [Class 38 (iv).] Supplying consuming devices ; charging batteries; systems depending on static transformers; regulation, automatic.-In a supply system a battery in parallel with the load is trickle-charged from the source supplying the load and automatic voltage regulating means, maintaining a slow rate of charge, is so influenced or excited by current supplied from the battery to the load as to increase the voltage applied to the battery and restrict any discharge so long as the main source is of approximately normal voltage. On failure of the source the battery supplies the load. The regulation may also be influenced by current supplied from the main source to the load. In a system, Fig. 1, supplied through a motor generator 4, 1 a series field winding 3 is connected between the source and the load 7 and between the battery 6 and the load so as to strengthen the field of the generator 1 to maintain the voltage at a value at which the battery will slowly charge notwithstanding increase in load. A part only of the load current may pass through the winding 3. When the battery discharges owing to slow speed of the motor 4, for example, the generator voltage is strengthened so as to restrict this discharge. An additional field winding, normally opposing the winding 3 may carry battery current only so that it may boost the generator voltage on discharge. Reversal of generator polarity is avoided with the arrangements described. The series winding may be replaced by a coil controlling in one or more steps a resistance in the shunt field circuit or in the circuit between generator and battery. One part of this coil may carry only battery current and the other be connected between generator and battery or between battery and load. Fig. 2 shows a system supplied from an A.C. source 11 through a rectifier 12 in which a choking coil 14 in the primary circuit of a transformer has a saturating winding 15, arranged similarly to the regulating windings mentioned above. The winding 15 may control a resistance in the primary circuit of the transformer. In a modification the saturation of the transformer core is varied by the winding 15 which is wound on an additional core limb, or is divided into two similar parts on each of two similar limbs, but connected so as to magnetize them in opposite senses and avoid the generation of A.C. in the said windings. A system is also described in which a three-phase source supplies through transformer windings with a saturable choke in the primary of each phase, two hot cathode rectifiers for full wave rectification, each rectifier having three anodes. The saturating windings are all in series and substantially no A.C. flows in them. In all the A.C. arrangements a choke coil 17 is preferably used in the battery circuit.
Patent GB-245717-A (GB)
Title: Improvements in or relating to processes for producing steel
IPC: C21C1/00
Filed: 1925-05-05
Abstract: 245,717. Wills, C. H., (Assignee of Smith, J. K.). Jan. 10, 1925, (Convention date]. Purifying and refining.-In the produciion of steel from solid-produced iron produced by the process described in Specification 215,400 in a gas-, oil-, tar-, or powdered coal-fired open hearth furnace, the iron is protected from oxidation by introducing into the charge carbon-containing materials such as pig iron or ferro-silicon which are more oxidizable than the solid-produced iron &c. The amount of pig iron used is from 15-25 per cent by weight of the charge; if ferro-silicon is used the amount is 5-10 per cent by weight. When using a basic furnace, the bottom of the furnace is covered with lime, a portion of the iron introduced and then a layer of pig iron either in the solid or fluid state. The charge is then melted and the rest of the charge introduced in the bath so formed. When using an acid furnace the lime is dispensed with and the floor of the furnace may be covered with sand or other siliceous material or a small layer of pig iron.
Patent GB-954778-A (GB)
Title: Back scrubbing bath accessory
IPC: A47K7/02
Filed: 1963-03-25
Abstract: 954,778. Sponges. A. S. SWANSON. March 25, 1963, No. 11744/63. Heading A4V. [Also in Division A5] A back-scrubbing accessory for bathers comprises a resilient backing strip 13, permanently curved to U-shape and having a handgrip 11, and an elongated sponge 16 extending along the inside of the U to contact the user's body when the device is placed over either shoulder or around either side of the body. The sponge is of plastic foam or other porous, compressible material and is cemented to the strip which is preferably of plastic thermally-preformed to provide a straight scrubber part 12 at an acute angle to the hand-grip and joined thereto by an arcuate portion which is also preferably covered by sponge forming a protective pad. The handle has finger notches 14 and a hanging hole 15 and the strip may be apertured at 13 to reduce weight and provide keys for the cement.
Patent GB-117728-A (GB)
IPC: F02D1/00
Abstract: 117,728. Bell, W. T., and Pitt, C. F. Sept. 22, 1917. Auxiliary actuating-gear ; leveractuated pumps; regulating delivery by return circuits.-In fuel pumps for internal-combustion engines, the delivery is controlled by opening a valve 1 of a return circuit in the delivery pipe for a variable period during the delivery stroke of the pump. The plunger is actuated by a cam 4 and lever 3, on which is pivoted a plate 5 ad justa.ble on the lever by means of a screw 8 and nut 10. During the delivery stroke, the plate 5 opens the valve 1 through a roller 12 and lever 13, the time of opening depending on the position of the roller 12, which is controlled by the governor. The pump may be actuated by a hand-lever 16.
Patent GB-117763-A (GB)
IPC: B62J13/04
Abstract: 117,763. Poole, S. C., and Smith, F. W. A. Nov. 21, 1917. Gear cases.-For fixing a longitudinally-divided gear case to the stay A of a motor-cycle &c., pairs of hollow half-cones d or the like upon the halves b, b<1> of the case are arranged to embrace projections c upon the stay and to be tightened around these projections by a wedging action produced by the drawing together of caps e, e' engaging with the half-cones. As shown, the projections are split and constitute the conical ends of a ferrule C passing through the stay. and the caps are drawn together by a nut f<1> and a bolt f, which passes through the projections and ferrule.
Patent GB-732180-A (GB)
Title: Control device for gas burners
IPC: F23N5/06
Filed: 1953-04-29
Abstract: 732,180. Thermally-actuated valves. STIERLIN, H. April 29, 1953, No. 11851/53. Class 135. A combined temperature regulator and safety cut-off device for gas burners comprises a rotatable and axially displaceable plunger 5 one end of which forms a valve closure member 5<SP>1</SP> for cutting off the gas supply on retraction of a transverse pin 19 operatively connected to' a member which is influenced by the heat of the burner flame and normally engaging a cam 15 carried by the plunger, the plunger also being arranged to carry the seat 14 of a second valve 12 controlled by an expansible member responsive to the temperature to be regulated. The arrangement is particularly suitable for controlling the gas supply to absorption refrigerating apparatus, but may be used for other temperature control purposes. The plunger 5 has a sleeve-like extension 5<SP>11</SP> slidable in the bore of a casing 1 having a gas inlet and outlet connections 10, 25. The closure member 5<SP>1</SP> seats on the end of a sleeve 3 mounted in the bottom of the casing 1 and when open allows gas to pass from the inlet connection through passages 9, 7 into the sleeve 5<SP>11</SP>. The cam is formed on the lower edge of a ring 15 pinned to the plunger 5. The pin 19 is operated against a spring 20 by a thermal capsule 18 mounted in a housing 16 screwed into the casing 1. The fixed end of the capsule is connected to a capillary tube 22, the remote end of which has coils 22<SP>1</SP> in heat conducting relation with the burner tube 23 and coils 22<SP>11</SP> exposed to the radiation of but not actually in the burner flame. The gas regulating valve comprises a ball 12 adapted to be moved away from its seat 14 against a spring 13 by a push-rod 27 influenced by a fluid-filled thermal capsule 29 connected to a capillary tube 31, the remote end of which is exposed to the refrigerating space. The plunger 5 is initially raised against the action of a spring 28 by a rod 8 operated from outside the casing. This opens the valve 5<SP>1</SP> and pushes the seat 14 away from the ball 12 so that the burner may be lighted. On expansion of the capsule 18, the pin 19 maintains the valves open so long as the burner flame remains alight, the degree of opening of the valve 12 and therefore the temperature to be maintained being adjusted by turning the cam ring 15 by the rod 8. The cam surface has notches at each end whereby the valve 12 may be kept permanently open or the valve 5 may close down completely.
Patent GB-1440714-A (GB)
Title: Counterbalance devices for co-ordinate measuring machines device for linking wires
IPC: G01B3/00
Filed: 1974-03-18
Abstract: 1440714 Co-ordinate machines BENDIX CORP 18 March 1974 [29 March 1973] 11945/74 Heading G1M A probe 26, Fig. 1, is carried by a shaft 10 movable in the Z axis between upper and lower pairs of rollers 16, 20, the movement being made by an electric motor 28 driving gears 30, 32 and a magnetic particle clutch 34 energized by a variable current power supply to drive a gear 44 engaging with a rack 46 secured to the shaft 10. The motor 28 may be run continuously and the slipping clutch energized only sufficiently to transmit a torque large enough to support the weight of the shaft 10, and a spring applied but electrically releasable safety brake 48 is wired into the motor circuit so as to operate when the motor is switched off. Vertical movement of the shaft generates electrical signals by means of a movable grating 22 cooperating with a reading head 24 having a fixed grating generating a moirÚ fringe pattern read by photo-cells.
Patent GB-470745-A (GB)
Title: Improvements relating to electric starting mechanisms for internal combustion engines
IPC: F02N11/08
Filed: 1936-02-20
Abstract: 470,745. Motors. LUCAS, Ltd., J., WATSON, E. A., and SHAW, F. T. Feb. 20, 1936, No. 11958/35. [Class 35] Accessories, arrangement on machines.-In an electric starter mechanism for an internalcombustion engine having a controlling switch mounted on one of the ends of the motor, a plunger g parallel with the armature axis actuates the switch contacts d under the control of a lever q arranged to engage the outer end of the plunger and carried by a part t rotatably mounted on the motor so that the lever can be brought into any desired position relatively to the motor. Movement is transmitted from the lever q to the plunger g through an abutment n slidable to a limited extent on the plunger and pressed against the lever by a spring o. Separation of the fixed contacts e and movable contacts d is effected by a spring m. The part t is formed as a hollow casing rotatable on the motor and held by a friction disc u, and the casing has slots s to allow the lever q to pass through. The lower end of the lever is formed with notches r providing more than one fulcrum. The lever may be actuated by linkwork or a cable attached to either end thereof.
Patent GB-767034-A (GB)
Title: Improvements in or relating to metallurgical converter arrangements
IPC: C21C5/40
Filed: 1954-04-26
Abstract: 767,034. Chimneys. PINTSCH BAMAG AKT.-GES. April 26, 1954 [April 28, 1953; July 20, 1953], No. 11978/54. Class 25 A metallurgical converter arrangement comprises a converter and a chimney for receiving waste gases and entrained solid particles, water cooling means being provided for cooling the chimney walls and base and every horizontal cross-section of the chimney, except possibly for its base being curved. In the chimney shown, dust &c. carried by the waste gases from the converter 1, Fig. 1, is separated out by an electrically, hydraulically, pneumatically or manually-operable cleaning device 7 located at the bottom 6 of the chimney base 2 and by a series of baffle plates 4 provided near the chimney top. The device 7 is fitted with a flushing device 8 and the walls of the chimney 3, the walls of the base 2 and the baffle plates 4 are water-cooled. In the water-cooled construction shown in Fig. 5 the baffle plates 4 have been replaced by a water-cooled device 10 which comprises baffle plates 11 for diverting the current of waste gases. The dust &c. is removed from the chimney of Fig. 1 through a duct 9, and from the chimney of Fig. 5 through duct 9 (not shown) and ducts 13.
Patent GB-1161995-A (GB)
Title: Preparation of Substituted Benzylamines
Inventor: HINKLEY DAVID FREDERICK
IPC: C07C255/53
Filed: 1966-10-19
Abstract: 1,161,995. Benzylamine derivatives. MERCK & CO. Inc. 19 Oct., 1966 [22 Oct., 1965], No. 11979/68. Divided out of 1,161,994. Heading C2C. Compounds of formula wherein R l  and R a  are each H or alkyl or R 1 R 2  is CH 2 , R 3  is C 1-5  alkyl and n is 0 or 1, are prepared by reacting the corresponding mono- or di-oxy substituted benzene with CH 2 O in alkaline solution, followed by (R 3 ) 2 NH in acid solution. Specified products are N,N-dimethylbenzylamines substituted as follows: 3-methoxy- 4-hydroxy, 3,4-dihydroxy, 3,4-dimethoxy, 3,4- diethoxy and 3,4-methylenedioxy; and the corresponding N,N-diethyl and N,N-dipropyl compounds.
Patent GB-1040334-A (GB)
Title: Improvements in or relating to electrostatically focused electron discharge tubes
Inventor: MAYO BERNARD JOSEPH
IPC: H01J29/62
Filed: 1962-03-29
Abstract: 1,040,334. Image-converter tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. March 25, 1963 [March 29, 1962], No. 12005/62. Heading H1D. In an image-converter tube a planar photoelectron emissive cathode 1 has closely spaced therefrom a fine pitch mesh 2 of mutually perpendicular filaments, connected at the periphery to a short cylindrical electrode 3 to form an auxiliary focusing arrangement. Cylindrical focusing electrodes 4, 5, 6, 7 are spaced along the tube between the cathode and a luminescent screen 8 and energized at increasing potential to cause the principle rays of electrons to cross the axis of the tube to produce an inverted image on the screen. The auxiliary focusing arrangement causes the marginal rays to cross the axis further from the cathode and closer to the point where the axial rays cross. The electrode 3 may be conically shaped and may be maintained at a different potential from the mesh 2. In another embodiment, Fig. 4, not shown, the mesh is closer spaced to the cathode and the electrode 3 is not used.
Patent GB-332260-A (GB)
Title: Improvements in loud speakers
IPC: H04R7/20
Filed: 1929-04-18
Abstract: 332,260. Green, A. April 18, 1929. Loud-speakers; diaphragms; magnetic instruments.-The diaphragm of a loud-speaker, more particularly of the double-diaphragm type, consists of a piece of fabric or material of polygonal shape with portions removed from the corners or perimeter so that a flap is formed at, each edge, the flaps being adapted to be wound upon supporting strips. The double-diaphragm loudspeaker is preferably composed of a number of readily assembled parts. Figs. 1 - - 3 show a construction of such a speaker comprising differently sized diaphragms 5, 11 of doped canvas or linen, each diaphragm having pieces cut out of the corners so as to form projecting flaps 12 adapted to be wound on metal &c. supporting strips 4, 8 respectively and secured thereto by adhesive, cement, &c. Each set of strips 4, 8 are secured together at the corners by brackets 1, 7 respectively, each bracket 1 being formed with a slotted projection 2 against which a portion 9 on each bracket 7 is adjustably secured by means of a bolt 6. The bracket 2 instead of being slotted could be provided with a series of holes with one of which the bolt 6 or a projection on the bracket 7 is adapted to engage. The brackets 1 also carry angle plates 18 to which are secured side panels 19, the lower lower plates 18 being preferablv provided with feet 20. Alternatively the speaker can be fixed to a baffle board or into a cabinet, being secured in position by screws passing through holes 37 in the brackets 1. The centre portions of the diaphragms are secured together by an eyelet or, as shown, by a threaded sleeve 13 and nut 14, the diaphragms being distorted into approximatelyconical form. The actuating unit is carried by a bar 15 extending diagonally across two of the brackets 7. Fig. 6 shows adjustable tensioning means, which can be applied to one or both diaphragms, comprising brackets 25 each having a pair of arms 27 provided with slots 28 and clips 29 with adjusting screws 30. Each strip 4 or 8 is attached to one of the arms 27 by a screw passing through one of the slots 28, the strips being adjusted outwardly to increase the tension of the fabric bv turning the screws 30. Fig. 8 shows a modified form of adjustable tensioning means comprising brackets 31 provided with a single inwardly directed arm 32 having a pair of slots 33 arranged at rightangles to each other. Each arm 32 is also formed with an upwardly bent end 34 which receives an adjusting set screw 35 carrying an angle block 36 adapted to engage the adjacent edges of strips 4 or 8.
Patent GB-241245-A (GB)
Title: Improvements in or relating to apparatus for compressing gases
IPC: F04F5/08
Filed: 1924-05-15
Abstract: 241,245. Boving, J. O. May 15, 1924. Aspirating-apparatus, jet-pump. - For compressing air and other gases by means of a device in which the gas is entrained by a liquid falling by gravity as in the Taylor type of compressor, a pump is provided to return the entraining liquid from the low level to the high level. In the arrangement shown in Fig. 1, water at a level 1 falls through an induction pipe A and the entrained air that is compressed and released is delivered from the tank B through a pipe b. The entraining liquid is circulated back to the chamber 1 by a pump C<2>, which may pump the water from the tank C, or it may be situated in the pipe B<1> so that the tank C is dispensed with. The gas may be entrained and compressed in stages. In a device of this kind, the compressed gas is led from the tank B to a tank D, which is fed with water from the tank B by a pump C<0>, the water that is delivered to the tank B<x> being forced back through the pipe B‹‹ into the first tank of the system by the gas pressure in D. An arrangement is also described in which the water in D is circulated back to the level 1 by a pump in the pipe B<1>, whilst the gas that collects under pressure in B is delivered to a second device.
Patent GB-1096844-A (GB)
Title: Improvements in or relating to substituted indazole derivative
Inventor: HOFMANN ALBERT
IPC: C07J73/00
Filed: 1965-03-23
Abstract: The novel compound 5-methoxy-3-[2-(4-phenylpiperazino)-ethyl]-indazole and its acid addition salts are prepared by reacting a compound of formula <FORM:1096844/C2/1> in which R1 is methoxy, and X signifies a chlorine, bromine or iodine atom, or an azide or C1- 4 alkoxy radical, with 1-phenylpiperazine and reducing the resulting indazolyl-(3)-acetic acid piperazide with lithium aluminium hydride, and, if desired, converting the free base into an acid addition salt. 5-Methoxy-indazolyl-(3) acetic acid is prepared by reacting 2 - nitro - 5 - methoxybenzaldehyde with malonic acid in the presence of a water removing condensation agent at an elevated temperature, reducing the 2-nitro-5-methoxy-cinnamic acid formed to the corresponding 2-amino compound, diazotizing this compound and adding sodium sulphite to the diazonium salt solution to effect ring closure.  The free acid is converted to the required derivative. Therapeutic compositions having neuroleptic and antipsychotic activity and having adrenolytic and hypotensive properties, which may be administered orally, enterally, or parenterally, contain 5 - methoxy - 3 - [2 - (4 - phenylpiperazino)-ethyl]-indazole and/or a physiologically acceptable acid addition salt thereof as active ingredient.
Patent GB-772795-A (GB)
Title: Improvements in dust bags for suction cleaners
IPC: A47L9/14
Filed: 1955-04-28
Abstract: 772,795. Suction cleaner filter bags. GENERAL ELECTRIC CO. April 28, 1955 [May 6, 1954], No. 12307/55. Class 8(2) The opening 16 Fig. 3 of a suction cleaner filter bag 10 of disposable material, e.g., :porous paper is surrounded by a collar 22 having one face secured to the bag position 12 adjacent the opening 16 and its opposite face 'secured to a mounting plate 18 having 'an aperture 20 in register with the bag opening 16 and serving to secure the bag to the air inlet tube 46 of a cylinder type suction cleaner. The collar 22 and mounting plate 18 are of, cardboard and the latter is slid down spring guide clips 36, Fig. 2, as far as an end clip 38; the clips being secured to a flange plate 34 of the tube 46. Specification 765,320 is referred to.
Patent GB-1299322-A (GB)
Title: A nonlinear amplifier circuit
IPC: H03G11/02
Filed: 1971-04-30
Abstract: 1299322 Logarithmic amplifiers TEKTRONIX Inc 30 April 1971 [9 July 1970] 12309/71 Heading G4G A logarithmic amplifier comprises a number of stages each comprising an operational amplifier having an input impedance part of which is shunted by a limiter circuit. The Figure shows the first two of a number of similar stages. Each stage comprises a NPN transistor amplifier 10<SP>1</SP> with feedback resistance 12 and series-connected input resistances 14, 16 coupled by a blocking capacitance 48. Resistance 14 is shunted by a limiter in the form of diodes 50, 52 arranged in series opposition with anodes connected to a common positive source of bias voltage + 10V. In quiescent state the resistance of the diodes is comparable to the resistance 14 and the gain of the amplifier, as determined by the ratio of feedback to input impedances, is high. For input signals exceeding a certain level, the diodes become non-conducting and the gain of the amplifier changes to unity. Although the stages are identical, each stage switches to unity gain at a different level of the signal at input 18 because of the amplification in preceding stages. Thus, each contributes a different segment of a logarithmic gain characteristic. The amplifier may be incorporated in the I.F. of a video amplifier forming part of a spectrum analyser.
Patent GB-1408402-A (GB)
Title: Tipping bucket
IPC: G01N1/20
Filed: 1972-03-16
Abstract: 1408402 Tipping bucket IMPERIAL CHEMICAL INDUSTRIES Ltd 6 March 1973 [16 March 1972] 12356/72 Heading B8N A tipping bucket for sampling a liquid as it flows from an outfall has attached to its external surface a container so positioned that when the bucket swings about its pivot into the emptying position liquid from the outfall flows into the container, liquid being retained in the container until the bucket returns to its normal position whereupon the liquid within the container flows out of the container. The container is preferably a three-sided rectangular container whose base is the external surface of the bucket, the base of the container while the bucket is emptying being inclined to the horizontal so as to form a trough with the three sides. The bucket may be of metal or plastics and may have an outlet through which a proportion of the liquid flowing into the bucket can bleed off.