baber/WOPTO huggingface dataset:
Patent GB-682723-A (GB)
Title: Echo distance measuring circuit
IPC: G01S1/72
Filed: 1950-08-08
Abstract: 682,723. Echo sounding and distance-measuring apparatus. BENDIX AVIATION CORPORATION. Aug. 8, 1950 [Aug. 24, 1949; Feb. 3, 1950], No. 19732/50. Class 118 (ii) [Also in Group XL (c)] Relates to duplexer means for reducing the 'effect of the transmitted pulse on the receiver in an electro-acoustic pulse echo distance measuring system employing a common transmitting and receiving transducer. According to the present invention, the system comprises a source of electrical wave pulses connected in series with the transducer and the primary of a transformer whose secondary is connected to the receiver input and is shunted by a cold electrode discharge tube. As shown in the Figure the output of the transmitter oscillator 11 and the input of the receiver 12 are coupled in series with the transducer 10 by means of the coupled coils 15, 16 and the step-up transformer 20 whose secondary 22 is shunted by a neon tube -50. The oscillator is periodically keyed by a cam-operated switch 19 which completes the cathode-earth connection and the receiver output signals are applied to an electro-chemical recording stylus 41 which is rotated on a moving. record tape 42 by a motor 45 which also actuates the switch cam 46. The striking voltage of neon 50 is such that when oscillator 11 is operative the neon conducts and presents a low impedance across primary 21 of transformer 22 so that most of the power generated by oscillator 11 is applied to the transducer 10 but a small amount of power reaches the receiver input and energizes the stylus to produce the zero range mark 42 a; when the oscillator is quiescent the neon is non-conductive and any echo signals are applied to the receiver to produce a record mark 42 b. The cathode of oscillator 11 is connected. to H.T. and via resistor 63 and to earth via capacitor 59 so that when the oscillator is quiescent capacitor 59 is changed positively but when the oscillator is keyed the capacitor is discharged and a negative pulse is applied through neon tube 56 to change capacitator 54 connected to the grids of the variable-mu pentodes 24 and 25 in receiver 12 so that the gain of the receiver is abruptly reduced at the instant of transmission and then progressively increases due to the discharge of capacitor 54 thereby increasing the gain for echoes from distant objects. In a modification, Fig. 2 (not shown), the oscillator comprises two triodes in push-pull and a condenser is inserted in series with the oscillator output coil corresponding to coil 16, Fig. 1, to balance out its inductance during the quiescent period of the oscillator thereby increasing the amplitude of the echo signal applied to the receiver input.
Patent GB-674586-A (GB)
Title: Improvements in or relating to the treatment of keratinous fibres
IPC: D01C3/00
Filed: 1950-08-09
Abstract: Keratinous fibres, e.g. wool or hair, are treated with an aqueous solution of magnesium hydrosulphide to disrupt the cross-linkages in their molecular structure.  The solution may also contain magnesium chloride as a buffer and a wetting-agent, e.g. triethanolamine.  The process is a preliminary to subsequent treatment to form new cross-linkages; thus in waving hair, the treated fibres are wound on curlers and subsequently treated to set them in their distorted condition.
Patent GB-762321-A (GB)
Title: Improvements in spectacle frames
Inventor: ROSSER GLYNNE DAVID
IPC: G02C5/22
Filed: 1954-07-06
Abstract: 762,321. Spectacle frames. HADLEY CO., Ltd: July 6,1955 [July 6, 1954], No. 19772/54. Class 97(1) The side pieces of a spectacle frame are each formed of two lengths of resilient wire held at their rear ends in an end member and each having their front ends formed as or united to a hinge barrel, the two hinge barrels lying one on each side of a central hinge barrel on the lens front and being joined thereto by a screw serving as an hinge pin. As shown the lengths 6, 16 are formed by bending a single piece of wire and securing the bend to a socket 7 connected to an earpice 9. The ends of the lengths 6, 16 are bent into rings 10, 11 the ring 10 being countersunk and the ring 11 tapped for the reception of a hinge screw 12. Alternatively the barrels 10, 11 may be separately screwed to the wires. A decorative piece 13, Fig. 2, may be secured between the wires by a T-shaped projection 14 and a hook 15.
Patent GB-438067-A (GB)
Title: Improvements in and relating to oil burning apparatus
IPC: F23D11/10
Filed: 1934-07-06
Abstract: 438,067. Liquid - fuel burners. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. July 6, 1934, No. 19892. Convention date, July 11, 1933. [Class 75 (i)] Oil and air are fed at equalized pressures to a burner comprising an oil tube 19 carrying a valve seat member 30 formed with a discharge passage 32<1> having a flared outlet 32, a stem 25 carrying a tapering valve member 24 adapted to engage the member 30, an air tube 20 surrounding the tube 19 and provided with a tapering tip 28 coacting with inclined channels 33 in the tapered face of the member 30 to form air passages leading to a chamber 31 from which the mixed air and fuel are discharged through a restricted aperture 29, and a head 18 formed with oil and air passages 21, 22 and carrying the tubes 19, 20. The upper part of the valve 24 is formed with spiral grooves causing the oil to rotate in the same direction as the air. The valve 24 is operated by a solenoid coil 27 surrounding an armature 26 at the top of the stem 25. The passages 21, 22 are fed from a tank 3 to which a mixture of fuel and air is supplied by a pump 4. The pump 4 draws oil either from a tank 1 or the tank 3 according to the position of a valve 9 operated by a float 10 in the tank 3. Additional air is supplied to the burner flame through a casing 36 surrounding the burner the casing having an enlarged end 38 secured to the casing. The burner is shielded from the heat of the flame by an air deflector 40 and inner casing 43.
Patent GB-1338639-A (GB)
Title: Photographic material
IPC: G03C1/79
Filed: 1971-06-10
Abstract: 1338639 Photographic paper EASTMAN KODAK CO 10 June 1971 [10 June 1970] 19895/71 Heading G2C A photographic element comprising (a) a paper support coated or extruded on both sides with a polymer, (b) a silver halide emulsion layer, (c) a developing agent, and optionally (d) a hydrophilic backing layer having a pH below 7 is characterized in that the paper contains sufficient 1-5C aldehyde bisulphite to prevent oxidized developing agent staining the paper on storage. Specifically paper is tub-sized with starch containing Na formaldehyde bisulphite, corona-activated, coated on both sides with polyethylene, a cellulose ester or linear polyester, optionally coated on the back with an antistatic layer of starch, Na polymethacrylate, and (tetramethyl butyl) phenoxyethoxyethyl Na sulphonate, and coated on the front with a silver halide emulsion containing hydroquinone and 1-phenyl-3-pyrazolidone.
Patent GB-224001-A (GB)
Title: Improvements in or relating to counters for pressure-operated tools which are moved towards and away from the work at each complete operation
IPC: G06M1/04
Filed: 1923-08-03
Abstract: 224,001. Freer, H. H. Aug. 3, 1923. Metal-working presses.-A counter for use with pressure-operated tools comprises a counter B, of ordinary construction, attached to a tool A, and operated by a bowed spring C, rigidly secured at one end C<1> to the tool and connected to a slide C<2> actuating the counter at the other. The bowed part of the spring C normally lies proud of the back of the tool, but is flattened to actuate the counter at each operation of the machine.
Patent GB-1041366-A (GB)
Title: Improvements in or relating to cooker tops
IPC: F24C15/10
Filed: 1963-05-20
Abstract: 1041366 Mounting electric hot-plates SIEMENS-ELECTROGERATE A G 20 May 1963 [21 May 1962 14 Dec 1962] 20045/63 Headings F4W W44D W22 and W18B13 Electric hot-plates 13, Figs. 1 and 2 (not shown), are supported in an apertured cooker top 1 by a plate 14 which covers the undersides of the hotplates and is connected to the cooker top. The cooker top 1 may be part of a cooking range, part of a combined cooker and sink unit, or may be inserted in an aperture in a worktop of any article of kitchen furniture with or without an intermediate supporting frame. In one embodiment a cooker top of non-rusting sheet metal has a flange 2 bearing through a heat-insulating asbestos strip 6 on the edges 3 of an aperture 4 in a worktop 5. The edges 18 of the plate 14 are bent up to form an enclosure, the air on which acts as a heatinsulating cushion. Additional heat insulation in the form of sheets of asbestos and a reflector of aluminium foil may be provided in the enclosure. Each hot-plate 13 is fixed on the plate 14 by a central screw 15, and is adjusted by screws 16. The plate 14 is supported from the top 1 by screws 19. Terminal strips are also secured to the plate 14. In alternative embodiments, Figs.4 and 5 (not shown), a flat or recessed plate is screwed to brackets which are welded to the top 1.
Patent GB-577200-A (GB)
Title: Improvements relating to the preparation of therapeutic substances
IPC: C07D219/08
Filed: 1944-10-17
Abstract: Therapeutic sulphonamide compounds are prepared by the interaction of an aminoacridine with a sulphanilylaminodimethylpyrimidine.  The resultants are preferably interacted in solution, and in molecular amounts.  The preferred amino-acridines are 2 : 8-diamino-acridine and 5-amino-acridine.  Instead of employing the above reactants themselves, there may be used which generate these reactants on admixture.  In examples: (1) 0.02 mol. of 5-amino-acridine is added to a hot alcoholic solution of 0.02 mol. of sulphadimethylpyrimidine. The desired compound separates on cooling; (2) 0.01 mol. of 2 : 8-diamino-acridine and 0.01 mol. of p  sulphadimethylpyrimidine are interacted in boiling water.
Patent GB-815588-A (GB)
Title: An anti-theft device for bullion cases or the like
IPC: A45C13/18
Filed: 1955-07-12
Abstract: 815,588. Attaching articles to the wrist. LIMEBURN, C. G. Oct. 12, 1956 [July 12, 1955], No. 20130/55. Class 43 [Also in Group XVII] A device to prevent theft of a case &c. comprises a wrist band connected to the case by one or more straps. The band is in two halves 1 joined by a strap 6 about the wrist and connected to the case by straps 2 permanently secured to the body and lid.
Patent GB-293579-A (GB)
Title: An improved appliance for measuring depths at sea
IPC: G01C13/00
Filed: 1927-07-29
Abstract: 293,579. Weilbach, E. C. July 29,1927. Sounding - apparatus.- Apparatus of the pressure type comprises a measuring chamber of varying cross-sectional area formed between two tubes arranged one within the other and rigidly connected together, the inner tube being marked with a measuring scale and being provided at its lower end with an aperture for the admission of water and at its upper end with an inwardly-directed outflow tube allowing water to overflow into the measuring chamber. The apparatus consists of a conical metal inner tube 9 within a cylindrical glass tube 6 which is enclosed within a metal tube 1 and is secured by caps 4, 5 and gaskets 7, 8. The tube 1 is provided with reading-apertures 1<a>. The lower end 10 of the tube 9 is open to admit water and passes through a threaded projection 14 of the cap 5. A. closure 16 carrying a hollow handle 17 screws over the extension 14 and bears on a gasket 18. To prevent collection of air within the handle a hole 24 is provided which communicates with the tube 9. At its upper end the tube 9 is formed with an inwardly directed tube 12 through which water flows into the space 23 between the tubes 6, 9. To empty the collected water, the closure 16 is removed, when the water leaves through passages 13 passing through the cap 5.
Patent GB-845123-A (GB)
Title: Improvements in and relating to galvanic cells
IPC: H01M12/06
Filed: 1957-06-27
Abstract: 845,123. Batteries. UNION CARBIDE CORPORATION. June 27, 1957 [June 28, 1956; Aug. 3, 1956], No. 20246/57. Class 53. A cell which when required for use is activated by a gas is provided with an electrolyte-forming substance which 'reacts with the gas to produce water. The gas may consist of boron trifluoride or silicon tetrafluoride, and the electrolyte-forming substance of a hydroxide or hydrated inorganic salt, for example the chloride, carbonate, sulphate, nitrate, fluoride or phosphate of aluminium, barium, cadmium, calcium, cobalt, iron, magnesium, manganese, nickel, strontium or zinc, or of a saturated dicarboxylic acid such as oxalic acid or crotonic acid, or of dihydroxy phenols, resorcinol or catechol. The anode of the cell may consist of aluminium, magnesium, cadmium, manganese, iron, nickel, lead or zinc, and the depolarizer of an oxide of manganese, lead, copper, silver, chromium or vanadium. A diffusion member is also incorporated in the cell to allow the gas to gain access to the electrolyte substance. Fig. 1 shows a battery comprising four annular cells joined in series and surrounding an ampule 18 containing compressed gas. The ampule is closed by a diaphragm 20 which can be ruptured by a point 30. Each cell comprises a zinc anode 10 having a carbon layer 12 on one side, and on the other side a dry separator 14 of paper, &c., containing the electrolyte-forming substance adjacent to which is a diffuser 16 of paper or textile fibres in which a metal oxide depolarizer is distributed. A carbon coating 12a on a zinc plate 10a forms the positive pole of the cell. In a modification the depolarizer and diffuser are made as two separate layers, and in another the electrolyte-containing separator also serves as the diffuser. The electrotrolyte-containing separator may be made by calendering a mixture of paper fibres and ground electrolyte-forming substance and drying in an oven. A zinc anode of extended surface area may be made by compressing zinc powder and paper fibres moistened with electrolyte. Specification 836,457 is referred to.
Patent GB-1406333-A (GB)
Title: Physiological sensor probes
IPC: A61B5/103
Filed: 1973-04-27
Abstract: 1406333 Physiological sensors AMERICAN OPTICAL CO 27 April 1973 [27 April 1972] 20258/73 Heading H4J [Also in Division A5] A transducer element 12 responsive to in vivo physiological signals is housed in a cup 31 which is slidably enclosed in a marker cup 33 having marking prongs 16, 17 (and 21) Fig. 2 (not shown) asymmetically arranged around its edge. When the transducer is brought close to a patient's body the edge of the cup 31 first makes contact with the skin, subsequent axial pressure on the handle 34 compresses the spring 14 and causes the marking prongs 16, 17 (21) to impress marks on the skin surface. The marks may be made longer lasting by use of a dye on the marking elements. The depth of impression made by the prongs is governed by the distance between the ends of cylindrical space 19. A screw 15 is fitted to the cup 31 and slides in a keyway 18 in the marker cup 33. The transducers are preferably mounted in nylon, the marker cup 33 and housing cup 31 may be of aluminium. A tube 32 fits into the cup 31 and provides a conduit for conductors 20 through the handle.
Patent GB-478073-A (GB)
Title: Improvements in the manufacture and production of isopropyl acetate
IPC: C07C69/14
Filed: 1936-07-22
Abstract: Isopropyl acetate is produced by reacting isopropyl sulphuric acid with aqueous acetic acid and then distilling off the isopropyl acetate under a pressure below 600 mm.  The reaction may be effected with acetic acid of 60-880 per cent, at 50--120 DEG  C. and the ester may be distilled off at 3--300 mm. pressure.  The reaction may be effected at atmospheric or reduced pressure, and there may be a throttle valve between the reaction vessel and the still, or the difference of pressure may be effected by a difference of level.  The reaction vessel may be provided with filler bodies, and the process may be continuous.  In an example, a mixture of isopropyl sulphuric acid and 80 per cent acetic acid is led through a reaction chamber at 80 DEG  C. and a column provided with filler bodies, the still being kept at 200 DEG  C. and 300 mm. pressure.  The distillate is rectified to separate an azeotropic mixture of isopropyl acetate and water from acetic acid.
Patent GB-227145-A (GB)
Title: Improvements relating to folding or collapsible tables, seats and like articles of furniture
Filed: 1924-05-12
Abstract: 227,145. Jones, E. May 12, 1924. Folding and collapsable tables with folding legs are provided with a folding stay for each pivoted leg member, each stay comprising a pair of folding links of which the lower link 13 is extended beyond its upper pivot to bear directly against the underside of the table top 11, the members 13, 14 then being in alignment. A catch 15 is provided for holding the parts of the stay member in the operative position. The legs on each side of the table are connected together by the bars 8 and the legs are spaced apart so that one pair of legs may be folded within the other. Attached to each leg is a strip 9 pivotally connected to a rail 12.
Patent GB-1374734-A (GB)
Title: Coating machine
IPC: A43D25/18
Filed: 1973-04-30
Abstract: 1374734 Endless belt conveyers PRIME MFG CO 30 April 1973 [26 June 1972] 20405/73 Heading B8A [Also in Division B2] A system of conveyers for moving an article 94 comprises a pair of conveyers 50, 52 in spaced alignment and a third conveyer 70 parallel thereto having a length equal to the combined lengths of the conveyers 50, 52 with a fourth conveyer 76 overlying the third conveyer to form a nip which grips the articles 94 as it passes them over the gap in conveyers 50, 52. The conveyers are all driven at the same speed and the articles are aligned for deposition on the conveyers by a blade 84.
Patent GB-614137-A (GB)
Title: Improvements relating to compositions for sizing textile warps
IPC: D06M15/11
Filed: 1946-07-09
Abstract: A sizing composition contains an ordinary starch which congeals on cooling, such as corn, wheat, potato or tapioca starch, and a waxy starch, particularly waxy maize starch, in proportions to provide a size that is substantially non-gelling at room temperature, preferred proportions being 40 - 70 per cent. corn or wheat starch or 55 - 85 per cent. tapioca starch, the balance being waxy starch.  One of the components, preferably the waxy starch, may be modified.
Patent GB-205897-A (GB)
Title: Improvements in or relating to mechanism such as in applicable to impulse-sending devices for automatic telephone systems
IPC: H04M1/31
Filed: 1922-07-27
Abstract: 205,897. Wood, A. F., Stott, W., and Telephone Manufacturing Co., Ltd. July 27, 1922. Impulse transmitters of the type comprising a movable governor-controlled impulse sending member connected to a setting member through a lost motion device, are provided with means for locking temporarily the two members together when the lost motion connection is in the advanced position so that the impulse member may be set in either direction. Means are provided for holding the setting member in advanced position until the handset &c. is removed. The commutator 34 is mounted loosely on the setting shaft 11 which carries a member 36 adapted to engage a pin 3& on the commutator wheel. Member 36 carries a detent 41, Fig. 3, normally pressed against the face of the commutator wheel, and adapted to enter the slot 42 therein. During the setting of the dial, member 36 moves until it engages pin 38 when the commutator wheel rotates with it. Detent 41 enters the hole 42 so that the commutator can be moved in either direction by the shaft 11. The mechanism is held set until the handset is lifted off when the rod 21 rises and the cam 44 thereon disengages the detent 41 and member 36 is rotated under control of the governor by the spring 12. The commutator is not, however, rotated until the member 36 engages the pin 38, by which time the governor will be operating effectively. Specification 30458/09 is referred to.
Patent GB-254546-A (GB)
Title: Improvements in or relating to automatic expansion joints for boiler flues
IPC: F23M5/00
Filed: 1925-08-17
Abstract: 254,546. Green, W. H. Aug. 17,1925. Flues, external. - In an automatic expansion joint for boiler flues of the kind comprising a casing a housing a sliding jointing place c which is pressed against the boiler by a back plate f acting by gravity through interposed rollers i, the back plate is supported by loose levers h held ball and socket fashion in bearings h<1> on the back of the casing. The plate c is supported by rollers d which are so tapered lengthwise that the plate presses against the side of the casing. The position of the back plate may be ascertained by inserting a rod through a tube k at the top of the casing.
Patent GB-702695-A (GB)
Title: Improved fastness improvers for dyeings, their production and use
IPC: D06P1/66
Filed: 1951-08-31
Abstract: Net-like polyquaternary ammonium compounds are prepared by reacting aliphatic dihalides with aliphatic tertiary tri- and higher polyamines.  The reaction is effected at 50 to 140 DEG  C. in the absence or presence of a solvent such as butyl alcohol, ethylene glycol or diethylene glycol.  Examples are given of the preparation of polymers from N, N1, N11-pentamethyl-diethylenetriamine and b b 1-dichlorodiethyl ether, and from glycerol dichlorohydrin and N, N1, N11-pentamethyldiethylenetriamine.  Other polyamines specified are N, N1, N11, N111-hexamethyl-triethylenetetramine, and N, N1, N11-pentamethyldipropylenetriamine, and other suitable aliphatic dihalides are 1, 2-dichloro- or dibromoethane, 1, 3-dichloropropane, 1, 4-dichlorobutane, 1, 5-dichloropentane, 1, 6-dichlorohexane, 1, 4-dibromopentane, 2, 3-dichlorobutane, 1-chloro-2-bromoethane, ethyleneglycol-di-b -chloroethyl ether, tetraethyleneglycol dichloride and g g 1-dichloropropyl ether.ALSO:Polyquaternary ammonium compounds are prepared by reacting aliphatic dihalides with aliphatic tertiary di- and higher polyamines.  The reaction is effected at 50 to 140 DEG C. in the absence or presence of a solvent such as butyl alcohol, ethylene glycol or diethylene glycol. Examples are given of the preparation of polyquaternary ammonium compounds from N, N1, N11-pentamethyl-diethylenetriamine and b b 1-dichlorodiethyl ether, and from glycerol dichlorohydrin and N, N1, N11-pentamethyl-diethylenetriamine.  Other polyamines specified are N, N1-tetramethyl-hexamethylene-diamine, N, N1-tetramethyl-triglycoldiamine, N, N1, N11, N111-hexamethyl-triethylenetetramine and N, N1, N11-pentamethyl dipropylene-triamine, and other suitable aliphatic dihalides are 1, 2-dichloro or dibromoethane, 1, 3-dichloropropane, 1, 4-dichlorobutane, 1, 5-dichloropentane, 1, 6-dichlorohexane, 1, 4-dibromopentane, 2, 3-dichlorobutane, 1-chloro-2-bromoethane, ethyleneglycol-di-b -chloroethyl ether, tetraethyleneglycol dichloride and g g 1-dichloropropyl ether.ALSO:The fastness of substantive dyeings is improved by treating the dyeings with water-soluble copper compounds and polyquaternary ammonium compounds obtained by reacting aliphatic dihalides with aliphatic tertiary di- and polyamines (see Group IV(b)).  In Examples, (1) substantive dyeings are treated with a soluble copper compound and the product obtained by reacting b b \sv-dichlorodiethyl ether with N, N\sv, N"-pentamethyl diethylenetriamine and (3) cotton or viscose fabric dyed with Polyphenyl Black FF is treated in a solution containing the product of (1) and copper acetate-the copper acetate being applied in the same or a separate bath.