baber/WOPTO huggingface dataset:
Patent GB-363353-A (GB)
Title: Process for the treatment of marine algae
IPC: D21C5/00
Filed: 1930-09-06
Abstract: Marine alg  are ground up and treated with a solution of an alkaline earth salt, e.g. calcium chloride, and soluble salts, such as iodides, are then extracted with cold or hot water.  In both processes it is preferred that the fresh treating liquid should first come into contact with the most fully treated material.  The washes charged with salts are clarified by boiling with an alkali carbonate, which precipitates the lime or other earth as carbonate.  After filtration, the purified wash liquor is concentrated, and the various salts crystallized out.  The calcic alg  are macerated in the cold with water acidulated with sulphuric acid, then separated and washed with water, and treated with a lye of caustic soda, carbonate of soda, or magnesia.  A viscous solution of the metal alginate is obtained.  In the Specification as open to inspection under Sect. 91 (3) (a) it is stated that the alkaline alginate may be treated with a strong acid to precipitate alginic acid, and that insoluble alginates may be obtained by double decomposition with suitable salts.  This subject-matter does not appear in the Specification as accepted.ALSO:Marine alg  are ground up and treated with a solution of an alkaline-earth salt, e.g. calcium chloride, and soluble salts, such as iodides, are then extracted with cold or hot water.  In both processes it is preferred that the fresh treating liquid should first come into contact with the most fully treated material.  The washes charged with salts are clarified by boiling with an alkali carbonate, which precipitates the lime or other earth as carbonate.  After filtration, the purified wash liquor is concentrated, and the various salts crystallized out.  The calcic alg  are macerated in the cold with water acidulated with sulphuric acid, then separated and washed with water, and treated with a lye of caustic soda, carbonate of soda, or magnesia.  A viscous solution of the metal alginate is obtained.  In the Specification as open to inspection under Sect. 91 (3) (a) it is stated that the alkaline alginate may be treated with a strong acid to precipitate alginic acid, and that insoluble alginates may be obtained by double decomposition with suitable salts.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1278142-A (GB)
Title: Sulphonated styrylbenzene derivatives, their manufacture and use as optical brighteners
IPC: C07C25/24
Filed: 1970-06-02
Abstract: 1278142 Brightening polymeric materials CIBA-GEIGY AG 2 June 1970 [5 June 1969] 26681/70 Heading C3R [Also in Divisions C2, C5 and D1] Polymeric materials are optically brightened by compounds of the formula wherein R 1  and R 2  are H, Cl, F, C 1-4  alkyl or C 1-4  alkoxy, Ra is H, CN or COOH or a salt, ester or amide thereof, M is H, alkali metal, alkaline earth metal, ammonium or amine salt ion, m is 1 or 2, n is 1-3 provided that at least one of R 1 , R 2  and Ra is not H, and when Ra is not H, R 2  is H. An example describes the treatment of polyamide chips. An extensive list of other materials which may be brightened is given.
Patent GB-602119-A (GB)
Title: Improvements in or relating to direct call telephone systems
IPC: H04M9/00
Filed: 1945-10-12
Abstract: 602,119. Direct call party-line systems.. INTERNATIONAL MARINE RADIO CO, Ltd., and NUTTALL, L. G. Oct. 12, 1945. No. 26716. [Class 40 (iv)] A direct call telephone system between a number of calling stations and an answering station provides secret communication over a single pair of common speech wires and a calling station can initiate and maintain a connection solely by operation of a push-button. The invention is described as applied to a ship's system providing communication between passengers' cabins and a steward, each speaking point having a dual purpose microphonespeaker telephone. To call the steward, a passenger presses key PK, so energizing his local relay MOR, which then locks in series with RA in the staff unit, and connecting his telephone MS to speech leads 1, 2. In the staff equipment RA connects the telephone MS over contact 2 of RB and contact 3 of RA to the output of valve V4, which acts as a tone generator, and indicator lamp P1 is lighted. The steward responds by pressing key SK1, thereby energizing RC and RB which transfer his telephone MS to the input of the speech amplifier, comprising valves V1, V2, V3 and connect the passenger's telephone to the output. Thereafter if SK1 is released, the connections to the amplifier are reversed by RC (RB remaining locked) and the passenger can speak. The key is thus used as a send-receive switch for a two-way conversation, relay RC operating each time the key is pressed. The call is concluded by the passenger releasing his push-button PK, whereupon his relay MOR releases and the amplifier, tone generator and staff equipment are disconnected. The initial operating circuit for each relay MOR includes contact 2 of relay RA in the staff equipment and consequently as soon as RA is operated by one passenger the operating circuits of all other relays MOR are opened. Any other passenger pressing his key PK under these conditions connects his telephone to the tone generator over leads 3, 4. When the staff equipment key SK2 is set to the " unattended " position, the relay MOR of any passenger, pressing his key PK, cannot operate, but the corresponding speaker is connected directly to the tone generator through the key contacts.
Patent GB-1016362-A (GB)
Title: A method of manufacturing an element for use in an air-cooled selenium rectifier and to rectifiers including such elements
Inventor: JENKINS ALEXANDER
IPC: H01L21/145
Filed: 1963-07-05
Abstract: A paint for use in air-cooled selenium rectifiers comprises an epoxy resin of molecular weight at least 1000, a pigment and a solvent, preferably in the ratio 1:2.5:5 respectively.  In an example "Epikote 1009" (Registered Trade Mark) (molecular weight 3800), TiO2 and methylcyclohexanone are mixed in a weight ratio of 20:50:92.5. Aluminium silicate is also a suitable pigment.
Patent GB-720242-A (GB)
Title: Toy kit
IPC: A63H27/10
Filed: 1952-10-24
Abstract: 720,242. Propelling toy aircraft and boats. KRAUTKRAMER, A. Oct. 24, 1952, No. 26796/52. Classes 4 and 114. [Also in Group XV] A toy kit consists of a toy comprising a hollow pressure tight body a adapted to be filled with fluid under pressure and having a restricted outlet opening b at one end thereof communicating with the hollow interior of the toy, and means for filling the toy with fluid under pressure, said means comprising a fluid inlet valve g dimensioned to fit and close the outlet opening and clamping means k for releasably holding said inlet valve in closure contact with said opening during charging of the toy. The embodiment described is an aeroplane, though the invention may also be applied to toy boats. An extension i of the fluid inlet valve g is adapted to fit and close the orifice b, and to be retained in fluid tight closure by a clamp k adopted to engage the fuselage a. Water is introduced into the hollow body, and then air is pumped in under pressure. Any liquid or finely commuted solid may be used instead of water, and any gas in place of air. The clamp k and valve g are rotatably mounted on a stand to orientate the aeroplane in a vertical plane by adjustment of the wing nut h. A rubber cap d or detonating cap may be fitted to the nose. On commencing a glide after powered flight is finished, the airstream may withdraw a parachute, released by gravity, on alteration of the flight path, from a tube mounted above the fuselage, to lower the aircraft to the ground.
Patent GB-838983-A (GB)
Title: Improvements relating to hurdles used in hurdle racing and like horse activities
IPC: A63K3/04
Filed: 1957-08-26
Abstract: 838,983. Hurdles. CURRIE, J. C. Aug. 6, 1958 [Aug. 26, 1957], No. 26805/57. Class 45. To lessen the danger of damage to horses during jumping, the hurdle rail is covered with a strip or strips of yielding material such as foam or sponge rubber. As shown, strips e are secured by an adhesive to a fabric f which passes around rail a and has its overlapping ends secured together. A single wide strip e or two strips may be used, and an adhesive faced fabric may pass around the outsides of the strips to clasp them to the rail. The uprights carrying the rail may similarly be protected, the strips being cut away to allow the rail to be placed into position.
Patent GB-464899-A (GB)
Title: An improved time measuring apparatus employing a synchronous motor and an auxiliary movement for driving time-controlled apparatus
IPC: G04C23/06
Filed: 1936-10-03
Abstract: 464,899. Electric clocks. LANDIS & GYR AKT.-GES. Oct. 3, 1936. No. 26865. Convention date, Oct. 5, 1935. [Class 139] The invention relates to a time-measuring apparatus employing (i) a synchronous motor 4 normally driving a time-controlled device, e.g. a twenty-four hour disc 23, through gearing 2, 3, a double ratchet device 1 and gearing 22, (ii) an auxiliary spring 8 which drives the disc 23 through gearing 5, 6 and ratchet 1 under the control of the usual escapement 7 when the current supply fails and (iii) an additional escapement device 18 the releasing member 21 of which is driven bv the time controlled disc 23 by a pin 24 or 25 and the escaping or detent member 17 of which mounted on a shaft 161 operates time switch contacts 16, actuates a clock or effects any other timed operation. According to the invention a differential mechanism 10 is provided, one member of which, sun-wheel 11, is connected through gearing 12 to the winding arbor of'the auxiliary spring 8, sun-wheel 15 being connected to the shaft 16<1> carrying the detent member 17, and the planet member 13 being connected through gearing 14, 3, 2 to the synchronous motor. As the sun-wheel 15 is normally locked by the member 21 holding detent 17, the synchronous motor, through gearing 14, planet 13, sun-wheel 11, and gearing 12 winds the auxiliary spring 8. When the member 21 releases detent 17 the end thereof escapes through the notch 19 or 20 and shaft 16<1> is rapidly rotated through 180‹ by the auxiliary spring 8 acting through the differential mechanism 10, to operate the switch contacts 16. Such an arrangement permits the use of a comparatively light spring 8. A detent 26 actuated electromagnetically by the current supply may be provided to lock the detent 17 and thus the switch 16 against operation when the current fails.
Patent GB-930942-A (GB)
Title: Improvements in or relating to devices for cleaning air
IPC: F24F3/16
Filed: 1961-07-25
Abstract: 930,942. Air-conditioning. O. H. DRAGER, [trading as DRAGERWERK, HEINR. & BERNH. DRAGER]. July 25, 1961 [July 25, 1960], No. 26977/61. Class 137. An air-conditioning unit, particularly for vehicles, comprises a housing 1 having a tubular filter 2 for non-gaseous substances, air leaving this filter being guided by partitions 6, 7 and 8 through sorption elements 3 for gaseous substances to an outlet 13. Two pairs of sorption elements 3 are provided and the filter 2 has an axial inlet at the top of the housing 1. The bottom of the housing includes three apertures for the insertion and withdrawal of the filters and sorption elements 2 and 3 respectively, the apertures being provided with pivotable covers. The latter are connected to hinged levers which further co-operate with screws to provide a locking arrangement (Figs. 5 to 7, not shown). The elements 3 are pressed against the partitions 6, 7 and 8 by means of clamping devices 10 while the filter 2 is forced against the top of the housing by appropriate pressing means (not shown). The outlet 13 is provided with a rotary hit-and-miss valve 14.
Patent GB-1522856-A (GB)
Title: Release conecting means for a parachute canopy
IPC: B64D17/38
Filed: 1976-06-29
Abstract: 1522856 Hook fastenings AERAZUR CONSTRUCTIONS AERONAUTIQUES 29 June 1976 [2 July 1975] 27018/76 Heading E2A  A fastener, particularly intended for parachute harness, comprises a male element 6 with aperture 8 insertable into sleeve 5 of female element 1 where it is retained by means of hook 9 passing through the aperture 8. Hook 9 rotates into and out of its engaging position around axis 10, locking lever 15, pivoted to the hook 9 at pivot 13, serves to move it and to retain it in the locked position. The retention is accomplished by provision of spring loaded balls 19 (see Fig. 3) in each of the limbs 16 into which lever 15 bifurcates. which balls engage in countersunk holes 24 provided on either side of nose 22 projecting from the sleeve 5 to hold the lever 15 and hence hook 9 in the locking position.  A cover 26, also hinged at 10, is provided to enclose the mechanism and is held shut by means of similar ball catches engaging holes 25 in nose 22. If desired, the hook and the locking lever may be integral.
Patent GB-748067-A (GB)
Title: Improvements in or relating to station installations for vehicles running on an elevated supporting structure
IPC: B61B1/02
Filed: 1954-09-21
Abstract: 748,067. Elevated railway platforms. ALWEG-FORSCHUNG-GES. Sept. 21, 1954 [Sept. 23, 1953], No. 27251/54. Class 20(1). For elevated railway vehicles 19 which may run on a single rail 17, platforms 14 are provided. arranged like balconies projecting from or recessed within the front line of the street building. A roof 20 is provided. The foundat:ons 16<SP>1</SP> for the supports 16 of the rails are independent of the other foundations 18 of the buildings, such foundations being provided by vibration minimising cushions, e.g. of rubber &c. Access to the platform 14 may be provided by stairs 15, or lifts or moving staircases disposed within the buildings which may comprise stores, garages, post offices, cold stores &c. Double deck vehicles 19, Fig. 2, are provided with two platforms 14 and 14a. In this case a catch guard 22 is provided to intercept falling debris or passengers. In Fig. 3 an overhanging garage of several storeys may be provided above the vehicles with a lift for automobiles. In Fig. 7 with rails S, N crossing rails 0, W at a lower level, a pair of upper rail tracks S and N have a common island platform 33 supported by the corner buildings of crossing streets from which platform 33 is suspended another island platform 34, Fig. 8 (not shown), to serve the crossing rails 0, W at the lower level. The platform passengers may be protected from incoming trains by a fence 38, Fig. 9, pivoted to a counterweight 39 to swing down, e.g. automatically, when such train stops. Alternatively lattice gates may be used which open and close.
Patent GB-1309349-A (GB)
Title: Benzodithiol compounds and their use as uv absorbers
IPC: C08L23/00
Filed: 1971-04-19
Abstract: 1309349 Coating KONISHIROKU PHOTO INDUSTRY CO Ltd 19 April 1971 [17 April 1970] 27337/71 Heading B2E [Also in Divisions C2 C3 D1 and G2] Organic materials, such as surface coatings, are protected from the undesirable effects of ultra-violet light by incorporating therein a benzodithiole of the formula I: wherein R 1  is a cyano, alkoxycarbonyl, alkylcarbonyl or carbamoyl group; R 2  is a hydrogen atom, a substituted or unsubstituted alkyl or alkenyl group and each of R 3  and R 4  is a hydrogen atom or an alkyl or alkoxy group. The benzodithiole may be used in conjunction with other ultra-violet absorbers, such as benzophenone, acrylonitrile, thiazoline, benzotriazole, stilbene, oxazole, thiazole or imidazole compounds. In an Example, a composition comprising white cellulose triacetate, triphenyl phosphate, phthalethyl glycolate, and Lumiplast Blue, stabilised by one of the above compounds is dissolved in alcoholic-methylene chloride and the mixture produced is coated onto copper sheets, which are then dried at 70C for 40 minutes.
Patent GB-1164802-A (GB)
Title: Improvements in or relating to Coin Freed Vending Machines
Inventor: HOLDEN JOHN DAVID
IPC: G07F11/04
Filed: 1965-06-29
Abstract: 1,164,802. Coin-freed apparatus. DEAN VENDING Ltd. 29 Sept., 1966 [29 June, 1965], No. 27384/65. Heading G4V. Coin-freed apparatus comprises off-set delivery members rotated through a knob 18 and co-operating gears 19, 20, mounted beneath storage compartments 5, 6 arranged one behind the other. The apparatus is controlled by a coinfreed mechanism such as described in Specification 761,927.
Patent GB-1256403-A (GB)
Title: Helmet with retractable visor and cover therefor
IPC: A42B3/22
Filed: 1969-05-30
Abstract: 1,256,403. Safety helmet. GENTEX CORP. 30 May, 1969 [27 June, 1968], No. 27502/69. Heading A3V. In the helmet of Specification 1,167,451, the forward edge 32 of the eyeshield cover 20, and the lower edge of the or each eyeshield 18, 19 when the or each eyeshield is in the retracted position are positioned so that, in use, they are above a line of vision 34 from the wearer's eye through the forward edge 15 of the shell of the helmet, the line 34 forming an angle of at least 25‹ with the horizontal.
Patent GB-1335142-A (GB)
Title: Demodulator system
IPC: H03D3/24
Filed: 1971-06-11
Abstract: 1335142 Frequency demodulation; active filters INTERNATIONAL STANDARD ELECTRIC CORP 11 June 1971 [16 June 1970] 27503/71 Headings H3A and H3U A phase-locked loop demodulator includes an N-path filter 2 connected in its input, the filter switching signal being derived from the loop oscillator 5. I.F. signals, of frequency F, to be demodulated are fed via the filter 2 to one input of a phase comparator, and the oscillator output, of frequency NF/2 is divided by N/2 in divider 6 and applied to the other comparator input to produce an error signal for controlling the frequency of the oscillators. The oscillator output is also fed to a pulse forming circuit 13 to produce phase displaced pulse, Fig. 2 (not shown), for sequentially switching the filter paths. The mid-band of the filter thus follows the frequency variations of the incoming I.F. signal.
Patent GB-382043-A (GB)
Title: Process of making the intermediate layers of veneer panels
IPC: E04C2/12
Filed: 1931-10-03
Abstract: 382,043. Built-up wooden panels. HUGUES, R., HUGUES, J., and ETABLISSEMENTS E. HUGUES, Wisches, Bas- Rhin, France. Oct. 3, 1931. No. 27505. [Class 145 (ii).] The inner layer of a built-up panel is made from a board which is grooved on both sides, the channels in the opposite sides being arranged to register, so as to leave thin webs.
Patent GB-246611-A (GB)
Title: An improvement in or relating to the driving of fancies on textile carding machines, and to analogous drives
IPC: D01G31/00
Filed: 1924-11-18
Abstract: 246,611. Brook, H S. Nov. 18, 1924. Carding-engines. - In the driving of fancies or in analogous drives an expanding pulley having one or more intermediate floating flanges is arranged on the shaft of the driven roller and the driving-band is led alternately round the expanding pulley and round a suitably disposed carrier pulley. The expanding pulley on the shaft e, Fig. 3, comprises a flange f<1> on a boss f and an adjustable flange g screwing on the boss and locked by a pin h on a nut k. A floating flange l slides on the boss. Any adjustment of the flange g towards the Range f<1> will have its effect divided between the turns of the driving-band around the pulley. The driving- band n, Fig. 1, passes from the driving-pulley o round the pulley on the shaft e and round the carrier pulley r back to the shaft e and to the pulley o.
Patent GB-1276728-A (GB)
Title: Improvements in or relating to impact shearing of metals
IPC: B23D23/00
Filed: 1969-05-30
Abstract: 1276728 Shearing HJO MEKANISKA VERKSTAD KZV SMEDBERG 30 May 1969 [31 May 1968] 27519/69 Heading B3W An end portion is sheared from an elongated metal rod or like blank by subjecting a movable shear blade to an impact force sufficient to shear the blank but so low that substantially the whole of the energy is absorbed in the shearing operation, the free end face of the portion to be sheared being axially supported during the initial stage only of the shearing operation and displacement of the movable shear blade being arrested as soon as the shearing operation is completed. As shown, a slide 19 reciprocable along rails 18 between adjustable stops 22 by a piston and cylinder 21, 20 carries a fluidoperated gripper 25 for feeding a rod 11 to a shear 10. The shear comprises fixed and movable apertured cutters 30, 31 mounted in a housing 32-34, a sleeve 58 locating the cutter 31 axially of the shear. The cutter 31 is maintained with its aperture aligned with that of cutter 30 by a spring 56, shoulders (51) on the cutter (Fig. 3, not shown) abutting a stop 52 on the housing. A pneumatic cylinder or air cushion may replace the spring 56. The cutter 31 is moved to shear a slug from the rod 11 by a high-energy impact from a heavy weight 42 mounted on a piston 41 associated with a pneumatic cylinder 39. The weight may be replaced or the feed pressure to the cylinder varied for stock of different sections and/or material. Readily replaceable stops 54 end the cutter stroke as soon as the slug has been sheared. The stops 54 and the spring 56 may be replaced by a liquid-braked piston/ cylinder arrangement which would also absorb any surplus energy of the cutter after the slug has been sheared. The aperture of the cutter 31 may be cut away at (63) and (64) (Fig. 4, not shown) to facilitate feed of the rod and ejection of the slugs. An apertured plate 67 is maintained during the initial part of the shearing stroke with an edge portion 71 abutting against the leading end of the rod 11 to counteract any bending moment. The plate is raised in synchronism with the cutter 31 to allow the slug to be ejected, e.g. by means of a piston and cylinder device 72, 73 actuated by pressure-responsive means in one of the stops 54.
Patent GB-1158089-A (GB)
Title: Improvements in or relating to Ink
IPC: C09D11/16
Filed: 1968-06-11
Abstract: 1,158,089. Inks. HONEYWELL Inc. 11 June, 1968 [16 June, 1967], No. 27602/68. Heading C4A. An ink comprises a dyestuff, glycerine, and an aqueous solution of polyethylene oxide. Preferably there is 81-90% by weight of a 0.17-0.25% by weight solution of polyethylene oxide, 10-16% by weight glycerine, and either 0.3-0.5% methyl violet or 2.0- 3.0% of a crimson dyestuff.
Patent GB-519629-A (GB)
Title: Improvements in or relating to dynamo-electric generators
IPC: H02P9/12
Filed: 1938-09-22
Abstract: 519,629. Supply systems for welding arcs; exciting dynamos. WESTINGHOUSE ELECTRIC & MANUFACTURING CO. Sept. 22, 1938, No. 27608. Convention date, Sept. 23, 1937. [Classes 35 and 38 (iv)] In order to prevent undersired reversals of polarity in a welding generator and to permit of reversal when required means are provided for providing a comparatively small constant current to the generator windings, the direction of which can be reversed by a switch when required, so that afer a stoppage of current it is restarted in the desired direction. The invention is described with respect to a cross-field generator with short - circuited ,brushes 21, 22, and series field-winding 16 and commutator winding 14. The Figure shows such a generator provided with an auxiliary winding 47 which is supplied with current through a transformer 40 connected to tappings on the field-windings of a motor 33 driving the generator. The current is rectified by a rectifier 44 and its direction controlled by a switch 10. The winding 47 may be dispensed with and the current supplied direct to the windings 14, 16. In a modification, the winding 47 is connected across a resistance in series with the fieldwinding of a motor driving the generator. In a further modification, the generator is driven by an internalcombustion engine and the winding 47 supplied from the ignition-battery.