baber/WOPTO huggingface dataset:
Patent GB-311686-A (GB)
Title: Improvements in or relating to automatic switches for telephone systems
IPC: H01H67/06
Filed: 1928-02-14
Abstract: 311,686. Standard Telephones & Cables, Ltd., and Snell, M. S. Feb. 14, 1928. Automatic exchange selectors. - Relates to single motion rotary switches and consists in (1) means for adjusting the tension springs of the armature of the magnets, (2) a method of mounting, and adjustable stops for, the driving pawl, (3) adjustable stops for the wiper shaft, and (4) means for adjusting the return spring. The tension springs E, F are adjustable along notches on the tails E<1>, F<1> of the armatures of the magnets 3, 4. The pawl H of the armature 5 of the driving magnet is mounted on a shouldered bolt H<1>, Fig. 4, of stainless steel, the head of the bolt being free in one side of the forked end of the armature so that the bearing space of the pawl is determined by the shouldered bolt and not by the width of the fork. The stops B, C for the pawl are eccentrically mounted as shown in Fig. 5, the seatings for the stops being of conical form. In the normal position, an arm L on the wiper shaft engages an eccentric D which may be adjusted not only to centre the wiper but to provide two normal positions, one with the wiper on the first terminals and the other with the wipers out of the bank. An adjustable stop G prevents the wiper being stepped forwardly off the bank. The wiper pivot M, Fig. 2, is of stanless steel and is screwed at one end into the switch base, the spring box A being mounted at its free end. The box is adjustable around the pivot M and is secured thereto by screws D. 'The stop arm L is carried in a slot in the ratchet wheel K.
Patent GB-367557-A (GB)
Title: Improvements in float valves for steam traps
IPC: F16T1/26
Filed: 1931-02-16
Abstract: 367,557. Steam traps. CARTER, F. S., 13, St. Andrew's Crescent, Cardiff. Feb. 16, 1931, No. 4788. [Class 64 (ii).] In a steam trap the float valve comprises a tube b carrying the valve c in adjustable screwed relation to the bucket float a by means of nuts d, and a coaxial tube e carrying the valve seating f and adjustable similarly in the base of the steam chamber h. The float a is always full of water, and the annular space s between the tubes b, e forms a siphon so that the valve and valve seating are always water sealed. The weight of the float is kept balanced by a spring g, which may also partly balance the pressure of the steam or other vapour. -The steam chamber consists of a tube h closed at each end by flanges drawn together by bolts. k. The inlet passage l is fitted with a vent pipe t.
Patent GB-1066691-A (GB)
Title: Motorised trucks
IPC: B62D51/00
Filed: 1965-02-03
Abstract: 1,066,691. Industrial trucks. CAMBRIAN ENGINEERING INDUSTRIES Ltd., and C. F. N. POWELL. March 30, 1966 [Feb. 3, 1965], No. 4789/65. Heading B7H. A motorized truck has a chassis frame 1 supporting a low-level platform 6, two undriven wheels 5 with axles above the platform level and a driving wheel 11 mounted on a steering column 9 and driven by an electric motor 12 mounted on the column. The upper end of the steering column carries a steering tiller 13 and control box 9a.
Patent GB-1005710-A (GB)
Title: Prevention of freezing in cooling towers
Inventor: DALTRY JOHN HAROLD
IPC: F28B9/00
Filed: 1961-02-09
Abstract: 1,005,710. Cooling towers. ENGLISH ELECTRIC CO. Ltd. Feb. 6, 1962 [Feb. 9, 1961], No. 4832/61. Heading F4S. In a dry cooling tower in which hot water is cooled in flowing through heat exchange elements by an air stream flowing over the elements, a method for the prevention in cold weather of internal freezing of the heat exchange elements comprises coating the elements with ice on their external surfaces. As shown, water is lifted from storage tank 52 via pipe 41 and water lifter 53, through a spray section valve 60 and hence to a spray head 61 for spraying water over element 42. Water lifter 53 is shown as an ejector supplied with steam from boiler 55. In an embodiment (Fig. 2, not shown) water is drawn off the bottom of tank 52 by a pump and flows through a water heater before proceeding to the spray head. The device may be made mobile by having a water tank mounted on a trailer.
Patent GB-743342-A (GB)
Title: Improvements in or relating to sound reproducing apparatus
IPC: G11B15/34
Filed: 1953-02-23
Abstract: 743,342. Sound-film apparatus. SIEMENS & HALSKE AKT.-GES. Feb. 23,1953. (Feb. 22, 1952], No. 4925/53. Class 40(2) : In an apparatus for re-recording sound from one film to another, such as from 35 m/m to 16 m/m sound and picture film, the said film is driven by a common motor 19 through gear boxes 20, 21. The master record may comprise a magnetic or photographic film passing from spool 9 to spool 14 and reproduced by magnetic transducer 12 or by a light source 22 and photo-cell 23 for magnetically re-recording on a film passing from spool 1 to spool 6.
Patent GB-411793-A (GB)
Title: Process for the production of sulphuric acid
IPC: G04C3/06
Filed: 1934-02-14
Abstract: Refuse sulphuric acids and acid sludges derived from mineral oil refining are burnt to produce sulphur dioxide-containing gases which are converted without drying into sulphuric acid by the process described in the parent Specification.  The substances may be burnt in a rotary tube furnace to which supplementary heat may be supplied if required by an oil furnace.  The combustion products may be passed through a ceramic filter, on which carbonaceous impurities are burned and mineral impurities are retained.
Patent GB-388204-A (GB)
Title: A process for sensitizing silver halide emulsions
IPC: G03C1/20
Filed: 1932-02-19
Abstract: A benzothiocarbocyanine alkyl halide or alkyl sulphoalkylate symmetrically substituted in the benzene nuclei and having five or seven carbon atoms in the polymethine chain, is used for sensitizing silver halide emulsions to the red and infra red.  The corresponding naphtha-, anthra- and phenanthra-thiocarbocyanine dyes may also be used or the benzothiazole nuclei may be replaced by substituted or unsubstituted quinoline nuclei, the polymethine chain entering such nuclei in p-position to the N-atom.  The sulphur of the thiazole ring may also be replaced by oxygen, selenium, or the vinyl group. Suitable substituents are alkyl, alkoxy, halogen, dialkylamino or acylamino groups.  In examples, (1) 2-methyl-8-methoxy-b -naphthothiazole diethyl sulphate is heated with b -ethoxyacrolein-acetal in pyridine forming the dye 1 : 1<1> - diethyl - 5 : 5<1>-dimethoxy-b -naphthothiopentacarbocyanine iodide; (2) 2-methyl-6-ethoxybenzthiazole ethiodide is boiled with dinitrophenyl-pyridinium chloride and the dye 1 : 1<1>- diethyl - 5 : 5<1>- diethoxybenzthio-heptacarbocyanine iodide is formed; (3) 2-methyl-b -anthrathiazole dimethyl sulphate is boiled with dinitrophenyl-pyridinium chloride and diethylamine, the dye 1 : 1<1>-dimethyl-b -anthrathio-heptacarbocyanine chloride being precipitated from the solution by the addition of common salt. The intermediate 2-methylbenzselenazole bases are prepared by boiling the zinc salt of a substituted o-aminoselenophenol with acetic anhydride or a disubstituted o-diaminodiphenyl-diselenide with acetic acid and zinc dust.  Thus 5-ethoxy-2-methylbenzselenazole is derived from 1-amino-2-nitro-4-ethoxybenzene by conversion first into 4 : 4<1>-diethoxy-2:2<1>-diamino-o-diphenyldiselenide by way of the selenocyanide.  2-methyl-8-methoxynaphthothiazole is prepared by acetylating 2 - amino - 7 - methoxynaphthalene, treating this with phosphorus pentasulphide and oxidizing with alkali ferricyanide. 2-methyl-5-dimethylaminobenzthiazole is prepared by nitrating p-bromodimethylaniline to a bromonitro derivative, converting this to a p.p<1>-tetramethyldiamino-dinitrodiphenyldisulphide by means of polysulphide, and reacting the latter with acetic anhydride. Other bases are prepared in an analogous manner.  Specifications 351,555 and 354,826 are referred to.
Patent GB-276382-A (GB)
Title: Improvements in apparatus for washing and treating coal
IPC: B03B11/00
Filed: 1926-02-22
Abstract: 276,382. Illingworth Carbonization Co., Ltd., and Illingworth, S. R. Feb. 22. 1926. Composition fuel. - Coal, after separation in a chlorinated hydrocarbon in which the coal floats and the impurities sink, may be treated with pitch prior to briquetting, the pitch being preferably dissolved in the washing solvent. In the form shown in Fig. 1, the powdered coal is fed into a battery of washing troughs 5, sloping to the delivery end, from hoppers 1 by rotating blades 3 on to conveyers composed of U-shaped links 6 carrying cross rods 7, Fig. 2a, the links moving over sinuous tracks 8 which serve to agitate the coal in the washing-liquid. Clean, coal is carried by a conveyer 9 to a tank formed in the well of a conveyer 13, and containing pitch solution, whence it is carried to a drier 14 and thence to a briquetting machine.
Patent GB-782640-A (GB)
Title: A combined aircraft and parachute release gear for stores dropping platforms and thelike
IPC: B64D1/10
Filed: 1956-02-17
Abstract: 782,640. Hook fastenings; hooks. BLACKBURN & GENERAL AIRCAFT. Ltd. CLARK, F. M., and STAMPER, J. T. Feb. 17, 1956. No. 5077/56. Classes 44 and 89(2) A hook fastening comprising parachute release mechanism which also frees restraining mechanism for a load to be dropped from an aircraft for support by said parachute comprises, for attachment to the load, a frame of channel section having a web 3 and flanges 1, 2 which support pivot pins 6, 7 for hook elements 4, 5 which are interlocked at 8 for simultaneous movement, The elements 4, 5 are notched to lock on pins 9 formed on both sides of a cranked arm 10, which is free to swing on pins 9 from the full line to the chain-dotted line positions shown in Fig. 4. The arm 10 has a seating which, when the arm is in the full-line position, locks on the ball end of a rod 12 secured at its other end to the aircraft structure. An arm 13, pivoted at 14 in flanges 1 and 2 has one projection 15 which engages with a surface 16 on arm 10 and another projection 18 which engages with an extension 17 on hook element 4. Arm 10 carries a connection 22 to a pilot parachute and a connection 23 to a main supporting parachute and a static line 20 engages the tail of arm 13. In operation, the pilot parachute is released so that it spreads behind the aircraft and exerts a pull on lever 10 to rock it into the chain dotted position of Figure 4 to release the mechanism from rod 12 and then to drag the load from the aircraft. The movement of lever 10 frees projection 15, thereby freeing arm 13 for rocking movement about pivot 14 when static line 20 is fully extended in order that projection 18 may free extension 17 of hook element 4 to enable elements 4 and 5 to open and release arm 10. The pull from connection 22 is now transferred through connection 23 to operate releasing and withdrawal mechanism for the main load-supporting parachute.
Patent GB-663393-A (GB)
Title: Balanced brake linkage
IPC: F16D49/08
Filed: 1949-02-24
Abstract: 663,393. Band brakes. BENDIX AVIATION CORPORATION. Feb. 24, 1949 [May 26, 1948], No. 5089/49. Class 103 (i). In an external band brake, the band 25 is applied to the drum 20 by longitudinal movement of a link 42, brought about either by energization of the solenoid 11 or by mechanical actuation, so that two belt-cranks 30 and 31 are oppositely rotated upon their pivots 34 and 35 so as to contract the band. When the brake is applied, clockwise rotation of the drum 20 drags upon the band 25 in a way such as to rotate both bell-cranks anticlockwise, the pin and slot connection of their longer arms resulting in a balanced action so that no force is transmitted to the actuating link 42.
Patent GB-600910-A (GB)
Title: Improvements relating to apparatus for the training of aircraft pilots in the use ofradio navigation signals
IPC: G09B9/26
Filed: 1944-03-20
Abstract: 600,910. Teaching radio navigation. LINK AVIATION DEVICES, Inc. March 20, 1944, Nos. 5191 and 5192. Convention dates, April 17, 1943, and May 27, 1943. [Class 40 (vii)] Apparatus associated with a grounded aviation trainer for teaching the use of radio navigation signals comprises a set of quadrants 28, 30, 32, 34 mounted below the recording desk 20 and excited with signals which simulate a field of the A-N overlapping-beam type, the recorder carrying an electrode 100 which picks up electrostatically signals representative of its position relative to the quadrants. The quadrants are bent downwardly to simulate the variation of intensity with distance and the edges of the quadrants bordering the openings 27 (which correspond to the equi-signal zones) are also bent downwardly to simulate the fall of intensity which normally occurs near such zones. The sudden increase of intensity when approaching the central cone of silence is simulated by rods 142 extending into the desk top 20 and the cone of silence is simulated due to opposite quadrants of each pair being excited in phase opposition. The excitation of the quadrants may be effected by a generator 38 producing a radio-frequency modulated by an audio-frequency in which case electrode 100 is connected to a radio-receiver which must be first tuned by the pupil. Alternatively, generator 38 may produce an audio-frequency and electrode 100 is then connected through an amplifier directly to earphones. The modulation of the opposite pairs of quadrants in accordance with the letters A, N is effected by a relay 126 controlled by a cam 70. The simulated equi-signal zones 27 may be shifted without changing the shape of the quadrants by adjustment of variable condensers 134. Irregularities in the equi-signal zones may be simulated by shaping the quadrants as at 152, Fig. 8, and an additional equi-signal line may be provided by a strip 150 mounted above one quadrant 28, but electrically connected to the adjacent quadrant 30. Specifications 370,128, [Group XXXIII]; 476,816; 481,375, 484,243, [both in Group XXXIII], 569,440 and 577,242 are referred to.
Patent GB-1510390-A (GB)
Title: Method of burning-in lining in bottom blown steelmaking furnace
IPC: C21C5/48
Filed: 1976-02-10
Abstract: 1510390 Method of preheating new converter lining USS ENGS & CONSULTANTS Inc 10 Feb 1976 [30 July 1975] 05199/76 Heading F4B In a method for preheating newly installed refractory material 16 and 23 in a bottomblown steel making converter having tuyeres 22 with axial passages 26 and annular passages 28, oxygen from a manifold 38 and a gaseous hydrocarbon from a manifold 40 is passed through the passages 26 and 28 respectively at a controlled rate and combusted in the converter to preheat or "burn in" the new refractory material. Simultaneously neutral gas from a source 42 is fed to the manifolds 38 and 42 to provide total gas flows in tuyere passages 26 and 28 of sufficient magnitude to prevent entry of foreign materials such as loose refractories and flowing pitch.
Patent GB-641629-A (GB)
Title: Electrically-operated chucks for machine tools
IPC: H02K7/06
Filed: 1948-02-23
Abstract: 641,629. Chucks. HERBERT, Ltd., A., LLOYD, A. H., and JINMAN, C. H. Feb. 23, 1948, No. 5257. [Class 83 (iii)] Chuck-operating mechanism having a reversible electric motor connected to operating means through speed reduction gearing and an irreversible device is characterized by two voltage circuits sequentially connected to the motor so as momentarily to supply a high voltage for initiating movement and then to supply a lower voltage for completing movement of the chuck parts. A reversible electric motor 14 supplied from slip-rings 15, Fig. 1, drives, through a pinion 18 and planet gear 19, a pair of internally-toothed wheels 20 and 21 having a small difference in their number of teeth. Reduced motion is transmitted from the wheel 21 to a coupling member 22 which has a lost-motion connection with an internal coupling member 25 connected to a screw 30 which operates a non-rotatable slidable nut 31 for a chuck draw-rod 32. The motor may alternatively be connected direct to supply lines 34, Fig. 4, through switch 37 or through adjustable resistances 36 and switch 35. A single control shaft is provided for the two switch parts, Figs. 6 and 7 and when turned anti-clockwise the bridge member 41 on a spring-biassed rockable element 42 first engages the co-operating contacts to give a relatively high starting voltage and, just before the bridge member 44 of the switch 35 engages the contacts for the lower adjustable working voltage, switch member 41 passes over its dead centre position and breaks the circuit for the direct supply from the mains. Specification 416,153 is referred to.
Patent GB-576603-A (GB)
Title: Improvements in and relating to rotary machines, such as motors, compressors, pumps and the like
IPC: F01C1/16
Filed: 1944-03-22
Abstract: 576,603. Rotary machines. RUTHERFORD, R. March 22, 1944, Nos. 5338, 14214 and 16009. [Class 110 (ii)] A rotary motor, compressor or pump of the Roots' blower type has two identical rotors, each having at least one curved projection 4a alongside which is a recess 4b which merges into the projection along an ogee curve. Spring- loaded ball valves are used. Lightening and balancing holes 4d, 4e may be provided. Inlet and outlet ports 7, 8 are directed towards the axes 2, 3 respectively. In fig. 3 each rotor has two lobes, with two spring-loaded packing pieces 18 which are interconnected by racks and pinion to prevent their escaping when not bearing against the chamber wall. Both rotors and casing may be made of stainless steel, and the rotors may be of helical formation. A number of machines may be coupled together in series or in parallel. According to the first Provisional Specification the projection 4d may be formed separatelyfrom the rotor and adapted to be forced by hydraulic pressure into sealing contact with the chamber walls.
Patent GB-1421623-A (GB)
Title: Soy protein isolates
IPC: A23J1/14
Filed: 1973-02-02
Abstract: 1421623 Soy protein isolates GRAIN PROCESSING CORP 2 Feb 1973 5350/73 Heading C3H Soy protein is isolated by a process in which an aqueous dispersion of defalted soybean particles are subjected to reverse osmosis and there is subsequently recovered soy protein soluble at the soy protein isoelectric point together with soy protein insoluble at said isoelectric point. The preferred product is at least 75% by weight soluble in water, not more than 25% of the protein is denatured, the protein is capable of emulsifying at least 200 ml. of soy oil per gram thereof and a 7% by weight aqueous solution thereof does not gel when heated at 65‹ C. for at least 15 minutes.
Patent GB-632783-A (GB)
Title: Improvements in or relating to napkins
IPC: A61F13/00
Filed: 1946-02-20
Abstract: 632,783. Compound sheet materials. MULLER, J. Feb. 20, 1946, No. 5360. Convention date, Feb. 22, 1945. [Class 140] A napkin which disintegrates when submerged in water comprises a layer of hydrophilic cotton wadding on cellulose wadding paper, and a waterproof layer between two layers of absorbent, easily destructible material, the hydrophilic cotton wadding layer being on the outside of one of the layers of the absorbent material. Referring to the drawing layer (a) is of hydrophilic cotton wadding on a cellulose wadding paper, layer (b) is of cellulose wadding paper, layer (d) of the same or similar absorbent easily-destructible material but not necessarily of the same size, layer (e) is the waterproof layer, e.g. impregnated paper, and layer (c) is of absorbent easily destructible material, preferably thicker than layers (b) and (d). The waterproof layer may be smaller than the layers of easily destructible material so that at the edges of the napkin the layers of absorbent material may be superimposed on each other.
Patent GB-1062303-A (GB)
Title: Improvements in or relating to turbines
Inventor: GRAY FRANCIS STANLEY
IPC: F01K17/02
Filed: 1965-02-08
Abstract: 1,062,303. Hot water supply systems. GENERAL ELECTRIC CO. Ltd. Feb. 8, 1966 [Feb. 8, 1965], No. 5369/65. Heading F4A. [Also in Division F1] The water for a district heating installation is heated in heat exchangers 11, 12 by steam from the exhausts of main and additional intermediate pressure cylinders 5, 9, respectively, of a steam turbine. The temperature of the heat exchanger 11, and thus the temperature of the district heating water leaving the exchanger, is controlled by a valve 15 in the steam line 16 between turbine cylinders 5 and 6 which regulates the exhaust temperature of cylinder 5. Adjustment of valve 15 may be carried out automatically to maintain the temperature of the heating water leaving exchanger 11 constant. Valve 24 controls the temperature of the steam flowing to exchanger 12 from cylinder 9. A feedwater heater 22 is included in the plant but may be omitted.
Patent GB-115026-A (GB)
Title: Device for Transporting Stertchers, Sick-beds and the like.
Inventor: LUNDBOM MATTIS
IPC: A61G3/00
Filed: 1918-03-27
Abstract: 115,026. Lundborn, M. April 11, 1917, [Convention date]. Ambulances; litters and hand-carried vehicles. -For carrying stretchers or beds on the recessed floors of motor ambulance vehicles, the distance apart of the legs of the stretcher or bed or a support therefor is adjustable according to the width of the recess to be bridged. The support may comprise a three-sided rectangular frame 1 adapted to be fixed to the side and end bars 3 of the stretcher or bed by straps 2. The legs 8 have bars 5 which slide in sleeves 6 on the frame 1 and are secured in position by thumb-screws 13. A stay 9 may extend from each leg to the flame 1 and it is secured to these parts in a manner which allows of its adjustment with that of the legs, by the thumb-screw 14 and rotatable collar 10. A support may be attached to one or both ends of the stretcher or bed, or the legs may be directly attached to the stretcher or bed.
Patent GB-1085468-A (GB)
Title: Arrangement for limiting exess currents
IPC: H02H9/02
Filed: 1966-02-08
Abstract: 1,085,468. Transmission and distribution networks. LICENTIA PATENT VERWALTUNGS G.m.b.H. Feb. 8, 1966 [Feb. 8, 1965], No.5447/66. Addition to 1,085,466. Heading H2H. In an arrangement for limiting excess currents, particularly between inter-connected networks comprising a series resonant circuit L.C which is thrown out of resonance by a saturable choke D on overload, the ratio of the reactance of the choke in its saturated state to the reactance of the capacitor should lie between 0À1 and 1À0 and the ratio of a resistance R to the capacitive reactance should lie between 0À3 and 2À0. The choke may be arranged to saturate at half the supply voltage. The resistor R limits the current when the choke saturates. The arrangement should be designed to pass 1À5 to 2À0 times the normal rated current before passing into the high impedance condition.