baber/WOPTO huggingface dataset:
Patent GB-913382-A (GB)
Title: Fine tuning device
IPC: H03J5/10
Filed: 1961-01-27
Abstract: 913,382. Adjusting radio tuning. OAK MANUFACTURING CO. Jan. 27, 1961 [Jan. 27, 1960], No. 3241/61. Class 40 (5). [Also in Group XXIV] A fine-tuning attachment for use more particularly with a television channel selector comprises a plurality of adjustable members, each individual to one of the indexing positions of the channel selector and each adjustable by common device rotatably mounted on the selector-operating shaft. Fig. 1 shows a channel selector switch the fine-tuning section of which comprises a single fine-tuning coil 16 the core of which is adjustable to a preset position for each channel. The channel selector 10 has a shaft 11 associated with indexing means 22 mounted on the front panel. A " wobble " plate 26 locked to the rotatable shaft 11 carries a plurality of serrated screws 35 corresponding to the index positions of the selector switch, the arrangement being such that for each index position the " wobble " plate takes up a position determined by two supporting pins 29 and the associated screw 35. Presetting of any screw 35 is effected when a knob 14 is pressed inwardly to force a disc 40 against rubber roller 44, carried on a radial spring arm to engage the roller with the serrated head 37 of the screw 35. Rotation of the knob then alters the setting of the screw, which in turn, causes the tuning core to be moved in coil 16. In a modification (Figs. 9, 10, not shown), the screw adjusting member consists of a screw-driver tip engaging a screw-head, the drive to the tip being either by friction (Fig. 12, not shown), or by gear-wheel (Fig. 13, not shown). Specification 913,381 is referred to.
Patent GB-230772-A (GB)
Title: Improvements in or relating to the construction of louvre or shutter devices for controlling the flow of air to motor car & like radiators
IPC: F01P7/10
Filed: 1923-12-12
Abstract: 230,772. Inglefield, A. F. Dec. 12,1923. Radiators, motor-car and like.-The flow of air to motor-car &c. radiators is controlled bv two sets B of pivoted louvres operated simultaneously in opposite directions by interconnected bars D, one of which is connected by a pivoted lever D<5> to Bowden wire mechanism E. When the louvres are vertical the middle portion A<6> of the frame A may be dispensed with.
Patent GB-194101-A (GB)
Title: A combined index and writing pad
IPC: B42D5/00
Filed: 1922-02-04
Abstract: 194,101. Simmons, F. M. Feb. 4, 1922. Writing-pads; indexing. - A combined index and writing-pad comprises a base plate a with stepped index sheets c pivoted upon it at their upper edges, and a second plate or frame d, carrying sheets of paper e, pivoted to the plate a and resting upon the uppermost index sheet c. Wedgeshaped supporting-bars b are provided upon the underside of the base plate, and a pocket f for a pencil is attached at one side.
Patent GB-394744-A (GB)
Title: Improvements in electric hand lamps
IPC: F21V11/00
Filed: 1932-02-04
Abstract: 394,744. Electric hand-lamps. USMAR, G., Dormers, Effingham, Surrey. Feb. 4, 1932, Nos. 3362 and 10944. [Classes 39 (ii), 75 (iii), and 75 (iv).] Electric hand-lamps are connected by a ball joint 10 to a suction cup or cups 11 for attachment to the surface of a toilet miror &c. In one form, the lamp comprises a cylindrical casing 1 provided with an adjustable lens 6 and a reflector 5, having a screwed stem 8 carrying the ball of the joint, the lamp socket 43 being mounted adjustably in a lateral extension 2. Two leg supports with arcuate feet may be pivoted at the lower end of the extension 2 so . as to be foldable along the latter when not in use. In a second form, the extension 2 is dispensed with, the reflector and lamp bulb being carried by a mounting secured to the back 9 of the casing. A lamp of this kind may be detachably fitted in a socket of a battery container, the lamp being connected by a flexible lead to the battery terminals within the socket. In a third form, the lamp bulb, preferably with a scoop-shaped reflector and wire protecting cage, is mounted on the upper end of a handle connected at the lower end by a ball joint to a stand provided with suction cups on its undersurface. In a fourth form, a slidable sleeve 20, Fig. 5, is provided on the battery container 19 to cover the cup 11 when not in use, and the lamp proper 24 is mounted on a ball joint 22 and adapted to be held in the normal position by a slidable sleeve 25.
Patent GB-591006-A (GB)
Title: Improvements in free wheels
IPC: F16D41/30
Filed: 1945-02-10
Abstract: 591,006. Ratchet clutches. VILLIERS ENGINEERING CO., Ltd., and POUNTNEY, F. Feb. 10, 1945, No. 3396. [Class 80 (ii)] In order to eliminate the usual pawl-spring receiving circumferential groove in the boss B of a cycle free-wheel, to permit the boss to be die-cast without subsequent machining, the wire or leaf pawl-springs F are housed in an opensided axial groove E which opens into the recesses b for the usual pawls C, the springs being retained in the groove by the bearing cones G carrying the usual sprocket-toothed ratchet-wheel D. Wire pawl-springs F are cranked at f<1> to bear on the cone G and their free ends may be straight and engage recesses c in the pawls C, or, as shown in Fig. 5, be bent at f<2> to engage internally plain pawls. The effective spring-force is increased by shallow ribs e on the inner periphery of the groove E.
Patent GB-1096676-A (GB)
Title: Improvements relating to systems for controlling the excitation of polyphase machines
Inventor: EDWARDS JOHN DENNIS
IPC: H02P9/30
Filed: 1964-01-27
Abstract: 1,096,676. Exciting polyphase machines; control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 18, 1964 [Jan. 27, 1964], No. 3408/64. Addition to 1,096,056. Headings H2A and H2J. In the system defined by Claim 3 of the parent Specification and wherein initially no exciting current is fed to the field winding 5 but the machine undergoes induction starting and such current is switched on when the machine speed approaches its synchronous value, the present invention provides as the switch a biasing circuit arrangement comprising frequency discriminating means connected to the winding 5 for producing an A.C. voltage of magnitude dependent upon the frequency of the voltage induced in the winding by induction running of the machine, and bias means responsive to rectified voltage derived from the A.C. voltage when the former falls below a predetermined magnitude, to render operable the control circuit means 14<SP>1</SP> but to maintain it inoperable until that magnitude obtains. The discriminating means comprises a resistance R series connected with the primary winding L of a transformer T, and the biasing means a network of resistances R2 &c. and Zener diodes D1, D2.
Patent GB-859597-A (GB)
Title: Improvements in or relating to electron image intensifying devices
Inventor: MCGEE JAMES DWYER
IPC: H01J31/50
Filed: 1958-02-03
Abstract: 859,597. Image intensifier tubes. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Jan. 29, 1959 [Feb. 3, 1958], No. 3453/58. Class 39(1). An electron image intensifying screen comprises a transparent fluorescent layer 1 with a supporting carrier 30, together of thickness not more than 20Á, having an electron permeable metal coating 7 on one face of the layer and a photo-electron emissive layer 3 on the opposite face. The layer 1, which is of non- granulated material of thickness between 1Á and 10Á, may be of zinc sulphide willemite or calcium tungstate but is preferably amorphous zinc sulphide activated by manganese. The electron permeable coating is of aluminium and the photo emissive layer of caesium activated antimony. The supporting carrier 30 may be of magnesium oxide, aluminium oxide, wire mesh or other inert heat resistant material. In manufacturing the screen a glass plate may be provided with a film of resin on to which zinc sulphide is evaporated in a vacuum. The resin is then dissolved to release the phosphor layer which is transferred to a wire mesh and baked to 1000C. to reactivate the phosphor. The supported layer is next provided with an aluminium coating on one side and an antimony layer on the other and finally this last layer is activated by caesium vapour. The intensifying screen may be used in an optical image intensifier, being placed between a photo cathode and the final fluorescent screen or may be used in a television camera tube.
Patent GB-545648-A (GB)
Title: Improvements in or relating to germicidal soap
IPC: C11D3/48
Filed: 1941-03-14
Abstract: 545,648. Germicidal soaps. GIVAUDANDELAWANNA, Inc. March 14, 1941, No. 3537. Convention date, March 15, 1940. [Class 91] [Also in Group VI] The germicidal ingredient of a soap comprises a 2, 2' di-hydroxy halogenated diphenylmethane and preferably a tetra or hexachloro derivative or a di- or tetrabromo derivative. Compounds specified comprise the following derivatives:- 5, 5<SP>1</SP> dichloro, 3, 5-3<SP>1</SP>, 5' tetrachloro, 3, 5, 6- 3<SP>1</SP>, 5<SP>1</SP>, 6<SP>1</SP>, hexachloro; 5, 5<SP>1</SP> dibromo, and 3, 5- 3<SP>1</SP>, 5<SP>1</SP> tetrabromo. Of these, the most effective germicidally is 2, 2<SP>1</SP>-dihydroxy-3, 5, 6-31, 51, 61, hexachloro-diphenylmethane, particularly against the bactorium, staphylococcus aureus, even in a concentration of less than 1 to 5000 in the presence of a large excess of soap. This compound is also specified in the form of its sodium salt. Compounds referred to in the prior art for use in germicidal soaps include chlor-thymol, benzyl-o-chlorophenol, and 6-chloro-2-phenylphenol. The diphenylmethane derivatives concerned may be prepared by the condensation of the appropriate halogenated phenols with formaldehyde in the presence of an acid condensing agent such as sulphuric acid. A liquid soap is specified containing 40 per cent. of soap prepared from 75 per cent. coconut oil and 25 per cent. castor oil.
Patent GB-646511-A (GB)
Title: Improvements in and relating to the manufacture of reeds or vibrating elements for musical instruments
IPC: B21D53/82
Filed: 1948-02-07
Abstract: 646,511. Reed plates. ALSTON, K. Feb. 7, 1948, No. 3635. [Class 88 (ii)] A reed plate is manufactured by either milling or grinding a wide shallow longitudinal channel 11 in a strip 10 or by rolling or extending a strip with such a channel, and then stamping out the reeds 18 transversely of the strip. The majority of the reeds are formed of such lengths that their free ends are thicker than their intermediate portions. The side 15 of the channel in which are formed the free ends of the reeds is either progressively thickened as shown, or is thickened in steps positioned according to the various lengths of the individual reeds.
Patent GB-767518-A (GB)
Title: Improvements relating to electrical waveguide systems
Inventor: MILNE KENNETH
IPC: H01P1/161
Filed: 1954-02-08
Abstract: 767,518. Waveguide matching systems. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 8, 1955 [Feb. 8, 1954], No. 3652/54. Class 40 (8). Two signals polarized in mutually perpendicular directions are propagated in a common waveguide 1 of square or circular cross-section, one signal Y being introduced by an aligned branch coupling 3 and the other signal X by a H-plane coupling 4. The directions of the electric fields of the two waves are indicated on the drawing. The signal X is fed to the guide 1 by means of a resonant slot 5. A further resonant slot 8 spaced a distance #g/4 from the slot 5 permits broad-band operation. The lateral branch 4 is matched to the guide 1 by means of two fins 6, 7, each of length equal to a multiple of #g/2, the positions of the fins being adjusted to control respectively the reactive and resistive components of the impedance presented by the guide 1. Examples of suitable dimensions are given in the Specification. Where the common waveguide 1 is of square section the coupling to the lateral branch may be in the E-plane instead of the H-plane. In the case of a circular section guide the fins 6, 7 are curved to lie orthogonally to the electric field.
Patent GB-348068-A (GB)
Title: Improvements in windows and draping supports therefor
IPC: E06B7/06
Filed: 1930-02-04
Abstract: 348,068. Window ventilators. CRITTALL MANUFACTURING CO., Ltd., Manor Works, Braintree, Essex, TOWLE, A. E., 4, Gordon Square, London, and CRITTALL, W. F., Manor Works, Braintree, Essex. Feb. 4,1930, No. 3777. [Class 137.] In a window structure 1 having a transome light 5 and a draping support 10, a recess 9 in the window opening provides a straight-through ventilation passage 13 which communicates above the draping support with the interior of the room and is such that air can pass direct from the transome-light opening into the room. When fully open the transome light rests against the rear face of the draping support and forms the lower wall of the air passage 13. In a modification the draping support is provided with perforations which allow air to pass into the room.
Patent GB-281133-A (GB)
Title: An improved process of purifying sulphur containing bitumen
IPC: C01B17/02
Filed: 1927-02-12
Abstract: 281,133. Blythe & Co., Ltd., W., Bentley, W. H., and Catlow, B. Feb. 12, 1927. Sulphur containing bituminous impurity is purified by distilling it in the presence of non volatile solid adsorbents or of finely divided chemically inert solids including finely divided calcium sulphate, calcium phosphate (bone ash), sodium sulphate, fine sand, kieselguhr and like adsorbent earths, silica gel, precipitated silica, powdered charcoal, and active carbon. The distillation may be carried out continuously, molten sulphur being run into the still so that the amount of sulphur therein is kept practically constant. Examples are given of the treatment of spent oxide sulphur, which is first washed free from soluble salts with hot water, dried, and heated to remove all matter volatile below 350‹ C., using powdered charcoal, activated carbon, or silica gel, and of Sicilian and American sulphur, using powdered bone ash or very fine sand.
Patent GB-1207412-A (GB)
Title: Fibrillation of plastics films
IPC: D02G1/12
Filed: 1968-01-25
Abstract: 1,207,412. Fibrillating oriented synthetic polymer films. PHILLIPS PETROLEUM CO. 25 Jan., 1968 [26 Jan., 1967], No. 3960/68. Heading B5B. Molecularly oriented films of synthetic polymeric materials are fibrillated by subjecting the film in a confined space to a compression force acting parallel to the direction of orientation, thereby causing folding of the film in said space at a plurality of points spaced along its length, the folding taking place along lines lying transverse to the direction of orientation. The film may in the process be given 5 to 50 folds per inch measured in the direction of orientation. As shown in the drawing, a longitudinally oriented film 2 is withdrawn from the roll 1 by the driven rollers 3, 4 and forced through the open inlet end 5 of a conventional stuffer box 6 into the box so that the conditions in the stuffer box are such that the film is folded inside the box, the folds being perpendicular to the longitudinal axis of the film. When the magnitude of the force with which the film is forced into the stuffer box 6 exceeds that necessary to compress spring 9 by means of which door 7 hinged at 8 is resiliently biased towards the stuffer box, the door 7 is forced partially open and crimped fibrillated film is forced between the bottom edge 10 of the stuffer box and that of door 7 and is rolled up on take-up roll 11 or allowed to fall into a tow box. A conventional folding or pleating apparatus may be used instead of the stuffer box. The film may be uniaxially or biaxially oriented by stretching. The film may consist of polymers of one or more 1-olefins having from two to eight carbon atoms per molecule, or of polyamides, polyesters, polymers of monovinyl substituted aromatics, polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, polyvinyl alcohol or acrylic polymers. In an example, a film of polypropylene is longitudinally stretched at 300‹ F. at a draw ratio of 15:1 and forced into a conventional crimper at a rate of 250 feet per minute, the spring 9 of the stuffer box door having been adjusted in compressive strength so that the crimped film removed from under door 7 has about 15 folds per inch as measured along its longitudinal axis. The film removed from the outlet end of the stuffer box is in a fibrillated condition, being in the form of a network of interconnected fibres. In the other example, the process of the first example is repeated using a film consisting of a 90/10 by weight polypropylene/polystyrene blend.
Patent GB-980349-A (GB)
Title: Method and means for dispensing a plurality of materials in conforming relationship to a workpiece surface
IPC: G03B42/04
Filed: 1963-01-31
Abstract: 980,349. Packaging light-sensitive film. GENERAL MAGNIPLATE CORPORATION. Jan. 31, 1963 [March 6, 1962], No. 3988/63. Heading B8C. [Also in Division H5] Apparatus for dispensing, e.g., radiographic film, comprises a housing 12, Fig. 2, having an aperture 20 through which the film is dispensed, spools 68, 72, 76 located within the housing, one, 68, containing the radiographic film 66, the other two containing strips 70, 74 of light-tight material, and means for applying material 78, Fig. 3, forming interconnecting means to the strips, the arrangement being such that the strips are dispensed from the aperture secured together in a predetermined overlying relationship. As shown, Fig. 3, the interconnecting means 78 in the form of adhesive tape is initially partly attached to one of the strips, 74, of light-tight material, and the composite assembly is fed through a guiding structure 42 and a closure device 54 which seals the strips 70, 74 together. The guiding structure and closure device are movably mounted upon a hinged plate 30 which has a planar surface 34 for supporting the strip material, 74, drawn from the spool 76 furthest from the aperture 20.
Patent GB-1249774-A (GB)
Title: An adjustable bracket structure
Inventor: MEHR JACOB ANDREW
IPC: H04N5/64
Filed: 1970-01-28
Abstract: 1,249,774. Brackets. DAZOR MFG. CORP. Jan.28, 1970, No.4100/70. Heading A4B. A counterbalanced brack assembly comprising a support 35 including two spaced plates 41 each with an arcuate slot 77 defining a cam surface 81, an elongate arm 10 comprising a parallelogram linkage 11, 12; (13), 14, pivotally mounted on the support, at 49, adjacent its inner end and provided with a load-carrying extension arm 15 at its outer end, a rotatable pulley 50 carried at a pivot axis 51 on the support 35, a link 58 connected to and between the inner end of the elongate arm 10, at 36, and the pulley 50, at 60, and a precompressed counterbalance spring 63 operatively attached by a link 65 to the pulley by a pin 75 engaged in the slots 77 and in a pulley slot 76 with a cam surface 80, the arrangement being such that the cam surfaces 80, 81 co-operate with the pin 75 to vary its offset from the pivot axis 51 as the pulley 50 rotates to compensate for the change in spring-load and hence to maintain a substantially constant counterbalancing moment about the pivot axis 51. The link 58 comprises a U-shaped strap 52 and a flexible cable 53. The longer links 11, 12 of the elongate arm 10 comprise nesting U- shaped channels which frictionally interengage to an extent which is adjustable by a stabilizer (31), Fig. 7 (not shown).
Patent GB-1315646-A (GB)
Title: Method of polishing hard articles
IPC: B24D3/28
Filed: 1972-01-28
Abstract: 1315646 Polishing PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 Jan 1972 [2 Feb 1971] 4120/72 Heading B3D A method of polishing hard articles, such as recording and/or playback heads for recorders, comprises providing a comparatively thin layer of soft material on a hard non-deformable substratum, distributing polishing grains on the layer, and polishing the articles, the layer being a foil of synthetic resin having a thickness of at most 10 times the dimensions of the grains and being present loosely on the substratum on which it is held by negative pressure. The projected surface of all the grains is smaller than 10% of the surface of the foil which has a penetrability for the grains 10 times larger than the penetrability of the workpiece for the grains to reduce the influence of variation in grain size. The negative pressure is applied through narrow ducts in the substratum.
Patent GB-470460-A (GB)
Title: Silencer for the discharge of internal combustion engines, and particularly those of aircraft
IPC: F01N13/08
Filed: 1936-02-11
Abstract: 470,460. Exhaust-silencers. GUGLIELMETTI, A., and STIPA, L. Feb. 11, 1936, No. 4146. Convention date, Feb. 12, 1935. [Class 7 (ii)] [Also in Group XXXIII] An exhaust-silencer, particularly for aircraft engines, comprises a casing 10 having a tubular entry 1 for air at the front end leading to a contracted portion 3, around which the exhaust gases are made to enter so as to mix with the air and escape through a tube 4, the gases entering by a pipe 8 so as to traverse an S- shaped path 6, 7 in the annular member surrounding the contracted part 3. The tube 4 is designed to diverge towards the rear so that the escaping exhaust and air have the same or a greater speed than that of the aircraft, the device having a propelling effect in the latter case. The inner walls of the device may be perforated, and the space between them and the outer walls filled with glass wool or other insulating-material. Radial cooling-webs may be disposed along the outside. The front part of the silencer may form the cowling on a radial-type aircraft engine. The Specification as open to inspection under Sect. 91 describes also a modification in which the exhaust enters by a pipe arranged centrally of the tube 1, the air passing between this pipe and the tube 1. This subject-matter does not appear in the Specification as accepted.
Patent GB-306689-A (GB)
Title: Improvements in or relating to pressure control apparatus
IPC: F15B15/18
Filed: 1928-02-10
Abstract: 306,689. Lloyd, H. J. Feb. 10, 1928. Working valves.-A valve device for automatically controlling the release of hydraulic fluid under the pressure which it has been utilized to exert and particularly applicable to hydraulic lifting jacks comprises a release valve and a valve automatically moved towards the closed position by conduit pressure acting against a spring load, both valves being arranged in the passage leading from a power cylinder to a reservoir. In the form shown in the Fig. the release valve 8 is loaded by a spring so that it will also act as a safety valve and is actuated by a lever 10. The automatic valve has a tapered plug valve 17 arranged to control a port 16 and is actuated by conduit pressure admitted through a longitudinal passage 26 to the underside of a cup leather piston 20. The cup leather is held on a cylindrical part 18 of the valve member by a nut 22 screwed on the valve spindle into engagement with a distance piece 21. The loading spring 23 is arranged between the nut 22 and a screw plug 24 secured by a grub screw 25. A screwed stop 27 secured by a nut 28 engages the nut 22 to prevent the valve entirely closing. The groove 26 may be replaced by a groove or passage in the valve member. A safety valve may be fitted to the conduit 7. In a modification the plug lift valve is replaced by a piston valve.