baber/WOPTO huggingface dataset:
Patent GB-1260365-A (GB)
Title: Improvements in and relating to a telecommunication system
IPC: H04Q5/00
Filed: 1969-03-14
Abstract: 1,260,365. Party line systems; diplex transmission systems. C.I.T.-COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS. 14 March, 1969 [15 March, 1968], No. 13493/69. Headings H4K and H4R. A single line pair is used to connect two independent subscribers to an exchange by providing a carrier channel for the additional subscriber using additional equipment at the exchange, Fig. 1, and at the subscriber, Figs. 2 and 3. The frequency of the carrier is different in the two directions of transmission and the presence of a carrier frequency is used for signalling purposes. At both ends of the line a low pass filter is used to isolate the audio signals from the modulated carrier signals which are passed through high pass and band pass filters in series. The exchange includes an oscillator which provides the carrier frequency F 1 which is amplified at 12 and passed to hybrid 14. Amplifier 12 is switched on by contacts a of relay 18 or contacts b of relay 21. Ringing current from the exchange on line L2 causes relay 18 to be energized intermittently and thus apply bursts of carrier frequency signal F1 to line L. This signal at frequency F1 is passed through filters 53, 54 in the subscriber equipment where it is ratified at 55 and causes an enabling voltage V to enable oscillator 59 and provide an audible calling signal at 60. The received carrier frequency F 1 also passes through a tuned circuit 56 which produces a synchronizing voltage 2F1 which is the same frequency as the second carrier F2. In the standby position of the hook switch 63 shown, negligible current is drawn from battery 72 because until the enabling voltage V is present the oscillator is shut down. When the hook switch 63 is changed to position r to make a call, oscillator 62 is energized to supply carrier frequency to line L. This signal is detected in the supplementary exchange equipment causing relay 21 to operate and close contacts c and b to loop line L2 and energize amplifier 12 respectively. Energization of amplifier 12 causes frequency F1 to be sent on the line and by producing the frequency 2F1 in tuned circuit 56 synchronizes the frequency F2. Dialling pulses produced by operating contacts 69 cause amplifier 65 to be intermittently energized and carrier frequency F2 to be interrupted causing relay contact C to follow the dial pulses. The battery 72 is charged from the line during idle periods.
Patent GB-554195-A (GB)
Title: Improvements in and relating to resinous condensation products
IPC: C08G12/04
Filed: 1941-10-22
Abstract: 554,195. Resinous condensation products. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 22, 1941, No. 13565. Convention date, Oct. 26, 1940. [Class 2 (iii)] A heat-curable resinous condensation product is prepared by heating together a "urea substance", an aldehyde and an organic compound of the formula where R is hydrogen or alkyl, aryl, aralkyl, alkaryl, acyl, naphthyl or heterocyclic radicals or their nitro, halogen, aceto, carbalkoxy or acetoxy derivatives. Specific examples are oxamic acid and oxanilic acid. 0.001 to 0.2 mols of the compound per mol of urea substance are used. Examples of "urea substances" are urea and its derivatives, guanidine, dicyandiamide, guanyl urea, guanyl thiourea, biguanidine, aminotriazines, aminopentadiazines, creatinine and guanoline. The aldehyde may be formaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, acrolein, methacrolein, crotonaldehyde, benzaldehyde, or furfural. The reactants may be condensed all together or in any order in a series of steps. The reaction is preferably conducted under alkaline conditions, e.g. in the presence of aqueous ammonia or caustic soda. Modifying agents, e.g. alcohols, amides, sulphonamides, amines, phenols, amino-phenols and ketones may be introduced before, during or after reaction. There may also be added hydrolyzed wood products, lignin, proteins, protein-, phenol,- aniline- and sulphonamide-, aldehyde condensation products, alkyd resins, cellulose derivatives, natural gums and resins, polyvinyl resins, dyes, pigments, plasticizers, mould lubricants, e.g. zinc stearate, fillers, e.g. α-cellulose, asbestos, mineral wool, mica and cloth cuttings. The products may be used in moulding compositions, sizes and fire retardants for cotton and linen, coating compositions, laminating paper, cloth, asbestos and mica and impregnants for electrical coils. Examples describe the preparation of modified melamine-urea-, melamine -thiourea # and melamine-dicyandiamideformaldehyde resins. Specification 540198 is referred to.
Patent GB-1028549-A (GB)
Title: Improvements in or relating to band pass filters
IPC: H03H9/50
Filed: 1964-04-02
Abstract: 1,028,549. Electromechanical band-pass filters. SIEMENS & HALSKE A.G. April 2, 1964 [April 3, 1963 (2)], No. 13565/84. Heading H3U. A band-pass filter comprises a one-piece mechanical transmission line carrying a plurality of mechanical resonators of length and cross-section such that each produces an attenuation pole in at least one of the attenuation bands of the filter, each resonator being (a) provided, at the point of coupling to the line, with a non-dissipative stub whose apparent susceptance together with the susceptance of the resonator provides a matching frequency in the pass-band of the filter, and/or (b) joined to the line via a short coupling section of transmission line whose length and cross-section differ from those of the resonator, to provide an attenuation peak, adjacent to the pass-band. Fig. 2 shows a portion of the transmission line 1 carrying resonator 2 with coupling section 4 and stub 3, the equivalent electrical circuit being as shown. The line, resonator, coupling section and stub may execute bending, torsional or longitudinal vibrations independently of one another, the particular mode of each depending on its cross-sectional shape (e.g. rectangular, circular or thin stub) and position of attachment (e.g. by point, line or surface). The ends of the stub and resonator can be left free or can be supported at a node. The transmission line comprises a number of such units arranged along its length, with an electromechanical transducer, e.g. piezo-electric, at one end, and either a non- reflective load or another such transducer at the other, depending on whether a two-terminal or four-terminal device is required. The coupling section can be omitted, the resonator then being attached directly to the line; alternatively the stub may be omitted.
Patent GB-810389-A (GB)
Title: Improvements in or relating to sulphide derivatives
Inventor: QUEEN ALAN
Filed: 1956-05-02
Abstract: The invention comprises compounds of the general formula: <FORM:0810389/IV (b)/1> where R is an alkyl group having from 2 to 12 carbon atoms inclusive, a substituted alkyl group, a substituted or unsubstituted aryl, aralkyl, alkoxy, cycloalkyl, carbethoxy or heterocyclic group, and a process for the preparation of compounds of the general formula: <FORM:0810389/IV (b)/2> wherein 3-mercapto-propylene sulphide is reacted with a compound of the formula R1.CO.X, where R1 is a substituted or unsubstituted alkyl, aryl, aralkyl, alkoxy, cycloalkyl, carbethoxy or heterocyclic group, and X is a halogen atom and the resulting product is treated with an inorganic base.  In examples, 3-chloroacetylthiopropylene sulphide is prepared by reacting chloroacetyl chloride with 3-mercaptopropylene in dry ether and then treating the solution with sodium bicarbonate; 3-ethoxycarbonyl-, 3-(ethoxycarbonyl)acetyl-, 3-benzoyl-, 3-p-chlorobenzoyl-, and 3-propionylthiopropylene sulphides being similarly prepared from 3-mercaptopropylene sulphide and ethyl chloroformate, malonic acid ethyl ester chloride, benzoyl and p-chlorobenzoyl chlorides, and propionyl bromide respectively. The following acylthiopropylene sulphides are also prepared by the method of the examples: 3-butyryl -, 3 - dichloroacetyl -, 3 - b  - chloropropionyl-, 3-phenylacetyl-, 3-ethoxalyl-, 3-b -(methoxycarbonyl-), 3-p-nitrobenzoyl-, 3-furoyl-, 3-hexahydrobenzoyl-, 3-trichloroacetyl-, 3 - ethylthioacetyl -, 3 - a - chlorophenylacetyl -, 3 - p - chlorophenylacetyl -, 3 - p - chlorophenoxyacetyl -, 3 - hippuryl -, 3 - phthalimidoacetyl -, 3 - p - dimethylaminobenzoyl -, 3 - p - phenylazobenzoyl -, 3 - methoxycarbonyl -, 3-n - butoxycarbonyl -, and 3 - benzyloxycarbonyl-thiopropylene sulphides.  The Provisional Specification also describes the preparation of compounds of the general formula (II), wherein R1 is an aryloxy group.  Specification 508,932 and 597,368, [both in Group IV], are referred to. 3-Mercaptopropylene sulphide is obtained by reacting 2 : 3-dimercaptopropanol with concentrated hydrochloric acid to give the corresponding chloride which is then treated with a weak base to give the sulphide.
Patent GB-528856-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D43/18
Filed: 1939-05-06
Abstract: 528,856. Friction clutches. STANCLIFFE, C. W., and WINGET, Ltd. May 6, 1939, No. 13611. Divided out of 514,502, [Group XXX] [Class 80 (ii)] Driving is effected by an expanding coil spring which is caused to contact with the driven member by weights moving outwardly under centrifugal force. A driving member 1 keyed to a shaft 2 has an annular flange 3 round which lies a coil spring 4 anchored to the flange at the end 5. The driven member 6 surrounds the coil and flange and has a wall 7 which forms with the member 1 an annular space 8. Weights 9 pivoted to the driving member at 10 are loaded by adjustable springs 14 and lie in the space 8 within the first convolutions of the spring. Between the weights and the coil spring is a resilient coil 11 carrying a projection 12. As the weights move outwardly under centrifugal force, they push out the projection 12 until it contacts with and wedges out the end convolutions against the driven member 6 which then expands the coil to cause it to grip. The resilient coil 11 may be dispensed with. The clutch may be locked solid by adjusting screws 21 to jam the spring 4 between the driving and driven members. In a modification, four weights lie freely in an annular space between the driving and driven members and one of the weights has an abutment adapted to be engaged by the end of the coil spring.
Patent GB-210687-A (GB)
Title: Improvements in and relating to price indicators
IPC: G09F3/20
Filed: 1923-05-23
Abstract: 210,687. Gottfried, H. R. May 23, 1923. Reel and endless-web apparatus.-A device for indicating in a changeable manner the prices of goods comprises a casing 3 having a lower horizontal extension 6 and an upper plate 5, preferably resilient, between which and the extension 6 the edge of a shelf 1 is gripped. A band 9 bearing numerals is wound round rollers 11, 12, 13 and a curved corner 14 within the casing 3, and is observed through a preferably glazed front opening 7. A guide 8 may be provided behind the displayed portion of the band 9 by suitably bending material struck from the wall of the casing 3 in forming the opening 7. The friction roller 13 is provided with a projecting milled disc 15 whereby the band 9 may be progressed. The roller 12 is mounted in a sliding yoke 18 longitudinally movable by a set screw 23 so as to adjust the tension of the band 9. The rollers 11, 12 may be replaced by fixed, smooth, curved guide plates which may be united with one side wall of the casing 3 and tension the band. The bearings for the rollers 11, 13 are formed by punching bosses inwardly through the side walls of the casing 3. A number of the devices may be arranged in contact along a shelf edge, and the disc 15 may be on different sides of the front in different devices to facilitate grouping of numerals.
Patent GB-1507658-A (GB)
Title: Means for preventing damage to jacketed flexible pumping strands in wells
IPC: E21B43/12
Filed: 1975-04-03
Abstract: 1507658 End fittings for cables BETHLEHEM STEEL CORP 3 April 1975 [3 April 1974] 13676/75 Heading D1T [Also in Division F1] A flexible strand 17 connecting a downhole pump (15), Fig. 1 (not shown), to an above-surface prime mover and comprising flexible steel wires surrounded by a plastics jacket 21, the jacket being filled with a corrosion-inhibiting liquid of a similar specific gravity to the surrounding well fluid, is provided with a pressure relief valve 37 which releases the liquid in the jacket when the pressure of the surrounding well fluid drops below a predetermined value to prevent ballooning and rupture of the jacket. In use the valve may be intermittently opened or be held permanently slightly open to renew the corrosion-inhibiting liquid. In Fig. 2 part of the jacket 21 of the cable has been removed and an end fitting 63 has been compressed thereon. Where the end fitting surrounds the jacket 21 a packing gland 67 and packing seals 67a are used. A sleeve 65 is secured to the fitting 63. Orifices 69 in the cable jacket 21 lead orifices 71 in the fitting 63 and thence to flow paths 72 between the sleeve 65 and the fitting 63. A bore 79 permits the liquid between the sleeve 65 and the fitting 63 to communicate with a pressure release valve 37.
Patent GB-1247721-A (GB)
Title: A method of simultaneously forming an apertured panel and a related closure panel
Inventor: HUNDY BERNARD BRIAN
IPC: B21D53/80
Filed: 1968-03-21
Abstract: 1,247,721. Making panels; stamping. PRESSED STEEL FISHER Ltd. 14 March, 1969 [21 March, 1968], No. 13679/68. Headings B3A and B3Q. A sheet is formed with two panel portions 11, 13 separated by a wall portion 12 which is severed at a-a to form an apertured panel 13, e.g. a vehicle side panel, and a related closure panel, e.g. a door panel 11. A sheet of superplastic metal alloy is vacuum formed into a complete side panel for a vehicle and after severing the tapered wall portion 12, the edges of door panel 11 are clinched over a separate inner panel 15 and a flange 16 formed on the portion 13 to provide a door frame edge. The door panel formed with the left hand side panel may be used with a right hand side panel and vice versa. In an alternative embodiment (Figs. 5 and 6, not shown), related closure panels (17, 21) are formed into a boot lid and a bonnet.
Patent GB-291350-A (GB)
Title: Improvements in apparatus for bridging series connected electric glow lamps in case of filament breakage
IPC: H01K1/70
Filed: 1928-05-09
Abstract: 291,350. Kremenezky, J., [Firm of], and Wimberger, L. May 30, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cut-out arrangements; thermal cut-outs. - An electric lamp is short-cir. cuited by means of fusible metal in case of failure of the lamp. For this purpose the leads 4 and 11 of the lamp are connected through a wire 9 of resistance approximately equal to the lamp filament and a block 1 of resistance material. Above the block 1 is a ring 6 of fusible metal, held in place by a metal cap 5, to which one end of the wire 9 is connected, and a disc of mica &c. 7. If the lamp fails the heat developed in the block 1 melts the metal 6 which then makes connection between the cap 5 and lead 4.
Patent GB-220096-A (GB)
Title: Improvements in and relating to gas rings
IPC: F24C3/12
Filed: 1923-05-24
Abstract: 220,096. Schonfield, W. May 24, 1923. Valves actuated indirectly.-A gas ring is provided with a spring-controlled valve in the form of a sliding tube, operated by a cooking vessel, flat iron, or the like. A sleeve 1 carrying the valve, is screwed into the burner 2, and receives a spigot 3 to which the supply pipe is attached. The jet 6 has openings 8, and is pressed to the position shown by a spring 4 acting through a ball 5, so that no gas can pass. A member 10 is adjustably secured to a sliding rod 11 passing through the feet 12, 13, of the ring. The opposite end of the rod 11 is attached to a link 18 which is operated by a push rod 16 when a vessel or the like is placed on the ring. The tube 6 is thus pushed to the left, and gas is admitted through the hole 8. A by-pass passage 22 is provided.
Patent GB-880037-A (GB)
Title: Improvements in or relating to the concentration of radioactive solutions
Inventor: HOWARTH ARTHUR JAMES
IPC: B01D1/14
Filed: 1959-04-22
Abstract: A radio-active solution, e.g. one containing nitric acid, with or without halogen ions, is concentrated by passing hot air through a porous bed to which the solution has access at two levels, condensing the vapours carried away by the hot air discharging from the bed, removing the condensate, and removing the concentrated solution from the lower of the two levels.  Forms of apparatus are described in which a column containing the porous bed can be lowered into or raised from a tank containing the radio-active solution, these operations being performable by remotely controlled tools.  In Fig. 1, which shows an apparatus suitable for laboratory use, air from an electrical heater 27 is passed downwardly into a packing 19 forming a porous bed in an evaporator 6, the evaporator having an inlet pipe 21 which is open to the contents of an outer tank 5 and to the solution to be concentrated from line 8, and an outlet 22 for concentrate. The concentrate passes through a port 29 in a draw-off <PICT:0880037/III/1> <PICT:0880037/III/2> metering device 7 or re-enters the tank 5 for re-circulation. Compressed air in line 33 lifts concentrate into a tank 31 whence it syphons back into vessel 28 until a chimney 34 is closed, the air pressure then causing the liquid in tank 31 to be discharged through a line 38.  Moisture is removed by the hot air in bed 19 and is passed by a pipe 16 into a packing 11 held in a condenser-scrubber device 4.  Water to condense and scrub the vapours passes downwardly from funnel 13 and leaves the device by an underflow weir 15 to a tank 1.  Air leaves by a waste pipe 14. Where no solution feed is available the evaporator 6 draws on the water underflow at weir 15 through a tube 18.  In Fig. 2, which shows a production scale apparatus, the porous bed 40 is confined in the bottom of a column 39 provided with a low level outlet 41 for concentrate and a series of liquid inlets 42.  Air from a blower 47 is heated electrically at 45 and passed into the bed by a pipe 44.  The column 39 dips into a tank 49 containing the liquid to be concentrated and is steam-heated by a coil 53.  The condenser and scrubber 48 has a packing 70 which is sprayed with water from sprinklers 73, thereby condensing water vapour and nitric acid, if present, passing up the column 39 and through connection 43.  Air leaves by chimney 76 and condenser water by a pipe 74.  Concentrated solution leaving the column 39 by outlet 41 is made good by the inflow through inlets 42.  Cable 69 facilitates lowering the column as the liquid level falls and removing the column from the tank when the desired concentration is obtained.  When the column is removed from the tank it is sprayed with water from spray rings 60, 61 and 64 (to decontaminate it) and dried by hot air from a ring 65 and the opening 52 in the tank and the opening 79 in the concrete shield 66 are closed.
Patent GB-104160-A (GB)
Title: Apparatus for Analysing Gas.
IPC: G01N7/04
Filed: 1916-09-28
Abstract: 104,160. Aktiebolaget Ingeniorsfirma F. Egnell. Feb. 12, 1916, [Convention date]. Gas analysis. - In gasanalysis apparatus, the velocity of the gas is retarded, so as to allow time for the absorption or other treatment of the gas by arranging a contraction in the piping carrying the gas before it reaches the first measuring vessel, or in the piping carrying the pressure medium which moves the gas. In the apparatus shown, the liquid rises and falls in the first measuring-vessel b by the action of a receptacle c forming part of a pumping-apparatus according to Specification 16561/08; liquid seals d, e, an absorption vessel g, an ascending pipe f, an inlet h for the gas to be analyzed, pipes i, i<1> for the pressure medium, and a pipe k by which the liquid has access to the vessel b, are provided. The contraction may be arranged at a, a<1>, a<2>, a<3> or a<4>. Figs. 2, 3 and 4 show other arrangements with a contraction in the vicinity of the first measuring- vessel b. In the form shown in Fig. 5, liquid enters a closed vessel n by a pipe m and increases the pressure in the closed vessels n, p until the pipe r acts as a siphon and causes the descent of the liquid in the measuring-vessel b, sucking in gas through e. A contraction a<@> is arranged on the siphon. The contraction may be made movable or may be placed in a branch pipe, so that it can be used when desired. Several contractions may be used in the same or different pipes. The Specification as open to inspection under Sect. 91 (3) (a) is not limited as to the position of the contraction and states that the contraction may be made adjustable for instance by making the cross-section of the pipe variable. This subject-matter does not appear in the Specification as accepted.
Patent GB-973265-A (GB)
Title: A method of packing together a plurality of tetrahedral containers
IPC: B65B5/00
Filed: 1963-04-08
Abstract: 973,265. Wrapped packages. HERMORION Ltd. April 8, 1963 [April 13, 1962], No. 13896/63. Heading B8C. To pack bodies shaped as regular tetrahedra in orderly arrangement in a wrapper 2, the wrapper is first disposed as a loose lining in a hexagonal container 5, the tetrahedra are then packed in the container, and the wrapping is gathered around the tetrahedra so that it holds them together when removed from the container. The wrapping may consist of elastic film material, of net, or of three bands of material crossing at the bottom of the package. Where the wrapping is of film its opening may be closed by twisting and subsequently secured.
Patent GB-424316-A (GB)
Title: Improvements in or relating to electric arc converters
IPC: H02M1/04
Filed: 1934-05-08
Abstract: 424,316. Converting. MARX, E., 43<1>, Husarenstrasse, Brunswick, Germany. May 8, 1934, No. 13897. Convention date, June 24, 1933. [Class 38 (ii)] In an arc converter, e.g. for energizing a D.C. line 2 from a transformer 1, the discharge at the main electrodes 3, 4, is initiated by an auxiliary voltage produced in a starting circuit comprising the secondary of an auxiliary transformer 7 with shunt condenser 10, series condensers 11, and either one or a pair of auxiliary discharge gaps 19, 20 in series with the gap at the main electrodes 3, 4. The timing of the starting voltage impulses is determined by a rotary contact maker 9 in series with the primary of the transformer 7 and driven synchronously with the A.C. voltage. High resistances 12 are connected across the condensers 11 for ensuring discharge of the latter between successive initiations of the arc. Rotary switches or inductances may be used in place of the condensers 11 as means for excluding main current from the starting circuit. Series chokes 14, 15, with or without shunt condensers 16, 17 are connected as shown to exclude starting voltage impulses from the supply and load circuits. Specifications 400,934, 406,003, 406,999, and 409,974, [all in Group XL], are referred to.
Patent GB-1164963-A (GB)
Title: Transparent Protective Covers for Timepieces.
IPC: G04B45/00
Filed: 1968-03-22
Abstract: 1,164,963. Clocks and watches. DAINI SEIKOSHA K. K. March 22, 1968 [March 24, 1967], No.13978/68. Heading G3T. A protective cover for a timepiece comprises a transparent cover member 11 adapted to be engaged by, or from part of, the easing of the timepiece, and an insert member 13 provided with a decorative pattern 13a and closely fitted to the internal surface of the member 11, both the members 11, 13 being adapted to extend over the timepiece dial in a spaced relationship therefrom.