baber/WOPTO huggingface dataset:
Patent GB-653301-A (GB)
Title: Audio-frequency band filter with adjustable band width
IPC: H03H7/01
Filed: 1948-12-20
Abstract: 653,301. Transformers and inductances. DAPHNE INVESTMENT TRUST. Dec. 20, 1948, No. 32862. Convention date, Aug. 20. [Class 38 (ii)] [Also in Group XL (b)] In an audio frequency band filter including two coupled coils 3 and 4 wound on laminated blocks 1 and 2 of E-form, the band width is varied by moving a magnetic core 7 between the coils. As shown, the core is divided into sections which can either bridge the limbs of the E-sections or connect them to their opposites on the other section. Condensers 5 and 6 formed tuned circuits with the coils 3 and 4 and input and output terminals are provided across the condensers. The magnetic members may be made from powdered iron.
Patent GB-1401223-A (GB)
Title: Edge-trimming strip
IPC: B60J10/18
Filed: 1972-07-13
Abstract: 1401223 Sealing strips REHAU PLASTIKS GmbH 13 July 1972 [14 July 1971] 32915/72 Heading E1J An edge trim-strip comprises an insert in a plastics casing, the insert having transverse strips 2 connected by longitudinal webs 3, the material of the insert and shape of the webs resulting in fracture of the webs when the strip is bent. The insert is punched from a steel strip, sprayed with plastics and bent to U-shape. The fracture takes place on bending of the strip to the U-shape or on fitting of the strip along a curved edge.
Patent GB-874726-A (GB)
Title: Improvements relating to composite rectifier stack assemblies
IPC: H01L25/07
Filed: 1959-09-29
Abstract: 874,726. Semi-conductor devices. COMPAGNIE DES FREINS ET SIGNAUX WESTINGHOUSE. Sept. 29, 1959 [Oct. 21, 1958], No. 33015/59. Class 37. Stacks of rectifiers 1 are supported on slotted bars 3. The central rods 4 of the rectifiers are held in the slots which all open to the same side of the bars and are equally spaced by nuts 11. Figs. 4 and 5 show the method of assembly. The rectifier elements 2 are pre-assembled on the rod 4 with spacing washers 5 in pairs and non-conducting guiding strips 6 of cardboard. The detailed slopes of the cardboard strips are shown in Fig. 5. When a new stack of rectifiers is being placed in position, holes 10 at one end of the strips are aligned and the other ends are splayed as shown in Fig. 4 to engage the bars 3. When the stack is in position the cardboard strips are torn away at the weakened portions 8.
Patent GB-735217-A (GB)
Title: Improvements in washing machines for clothes and the like
IPC: D06F33/00
Filed: 1951-08-20
Abstract: 735,217. Washing and drying machines. BEATTY BROS., Ltd. Aug. 20, 1951 [AugÀ 19, 1950], No. 33062/53. Divided out of 735,185. Drawings to Specification. Class 138 (2). The subject-matter of this Specification is identical with that described in Specification 735,185, but the claims differ. Specifications 643,486, 654,254 and 688,872 also are referred to.
Patent GB-921814-A (GB)
Title: Improvements in and relating to automatic water-feeding apparatus for steam boilers
IPC: F22D5/08
Filed: 1959-09-30
Abstract: 921,814. Fluid-pressure servomotor control systems; valves. S.T.E.G.U. SOCIETE ANONYME. Sept. 30, 1959 [Sept. 30, 1958], No. 33221/59. Class 135. [Also in Group XIII] The rate of supply of feedwater to a boiler is regulated according to the water level therein by a steam pressure actuated valve 17 which receives steam through a line 16 from a vessel 1 connected by pipes 2, 2a, to the steam and water spaces of the boiler so that the level therein and in the vessel are the same. The vessel 1 contains a float 3 which is suspended by a lazytongs linkage 6 . . . 9 from fixed pivots 10, the uppermost links 9 being extended beyond the pivots to engage a pin secured to a pusher rod 12 which engages a conical valve 14 urged towards its closed position by a spring 13 housed in a chamber 15 from which branches the line 16. The pressure in the line 16 which corresponds to the amount of opening of the valve 14 is indicated by means of a gauge 22. An expansion chamber 19 is also connected to the chamber 15 and serves to damp the fluctuations in pressure inside the chamber. The float 3 contains a measured amount of distilled water 31, the evaporation of which under working conditions generates an internal pressure which at least partially offsets the steam pressure on the float allowing the latter to be made of thinner metal so that it floats higher in the water and is thus more sensitive to level variations.
Patent GB-1235406-A (GB)
Title: Construction series for molecular models
IPC: G09B23/26
Filed: 1969-07-01
Abstract: 1,235,406. Molecular models. INCENTIVE A.B. 1 July, 1969 [5 July, 1968; 14 April, 1969], No. 33272/69. Heading G5G. Apparatus for making molecular models comprises segments or parts of hollow spheres having assembly means comprising interchangeable male and female elements for connecting the units together. As shown the unit 1 comprises a hemisphere provided with a radially directed peg 2 and three equally spaced holes 5, 7. Unit 2 is a sphere segment which can be combined with unit 1 as shown in Fig. 5. Unit 3 comprises a hemisphere 16 with a peg 18 which may be inserted in the holes 5, 7 of unit 1. A peg 19 is provided so that a sphere may be formed by combining two units 1.
Patent GB-506668-A (GB)
Title: Improvements in and relating to microphones
IPC: H04R1/08
Filed: 1937-12-01
Abstract: 506,668. Microphones. ALEXANDER; F. W:, and SHORTER, D. E. L. Dec. 1, 1937, No. 33275. [Class 40 (iv)] Microphone appar. atus comprises a velocity microphone, spacing means adapted tc rest against the face of a user whereby the vibratory part of the microphone can be located at a fixed mininum distance from the mouth, this distance being sub. stantially less than 18 inches, and a baffle for preventing impulsive draughts from passing directly from the mouth of the user to the vibratory part but allowing sounds from the mouth tc pass around the edges of the baffle to the said vibratory part, and attenuating means which may be acous. tical and/or electrical and which substantially compensate for the discrimination of the microphone in favour of the lower frequencies of the sound from the speaker. As shown, a ribbon microphone is suspended by rubber bands 2 in a cubical casing 4 of perforated metal lined with silk or other fabric and having a perforated metal cover 11 lined with wire gauze 10. A ring 12 mounted on the cover by rods 9 facilitates the use of the microphone with the ribbon at the correct distance from the mouth. The ribbon 13 is mounted between the polepieces of a U-shaped magnet 14, the limbs of which are formed with U-shaped slots. Perforated metal strips 21 lined with silk are located in front of and behind the ribbon to attenuate the lower frequencies. The ends of the ribbon are connected by leads 17 to the primary winding of a transformer 7 which is designed to favour the higher frequencies. The leads 17 pass through a pad 18 of cotton wool and the output conductors are supported in a cable grip 20 disposed in the handle 6. The microphone is mounted in its casing so that the body of the magnet is interposed between the source of sound and the ribbon 13 to act as the baffle against impulsive draughts from the user.
Patent GB-856543-A (GB)
Title: Bearing means for supporting machine elements
IPC: B23Q1/38
Filed: 1958-10-20
Abstract: 856,543. Fluid bearings; lubricating. NEW BRITAIN MACHINE CO. Oct. 20, 1958 [Oct. 28, 1957], No. 33375/58. Classes 12 (1) and 12 (3). A tubular shaft 14 is rotatably mounted in air bearings formed in axially spaced tapered porous metal bushes 35, 36 to which oil-laden air is supplied under pressure through conduits 37, 40 and 38, 41, respectively. The bush 35 co-operates with a tapered portion 60 of the shaft 14 and the clearance therewith is maintained by an adjustable thrust-ring 63 mounted on the shaft 14. The bush 36 co-operates with a tapered sleeve 65 keyed to the shaft 14 and adjustable axially thereon by a threaded member 66, the clearance being maintained by a flanged member 67 interposed between the end of the bearing 36 and an adjustable member 68 threaded on to the shaft 14. A Venturi-type lubricator is employed comprising an oil bath 45, a Venturi passage 46, a siphon tube 47, and an upper chamber 48 from which the flow of oil through a sight-feed chamber 52 and outlet conduit 53 is controlled by a needle valve 51. The invention is applied to the tool spindle of a horizontal boring machine. -
Patent GB-757475-A (GB)
Title: Improvements relating to automatic winding machines for materials such as fabrics, paper, thermoplastics, in the form of strip, ribbon or the like
Inventor: GARDEL WOLFANGO
IPC: B65H19/22
Filed: 1954-11-18
Abstract: 757,475. Winding webs. METALMECCANICA SOC. R.L. Nov. 18, 1954, No. 33408/54. Class 100 (1). An automatic and continuously operating winding machine for webs of fabric, paper, thermoplastic and the like comprises two roll-driving rollers 5, 9, a magazine for rollcores 18 to be filled, means for freeing the cores one at a time and for leading them to a first winding station Y in engagement with the first roller 5, the said means being actuated to allow a new core to enter the first winding station by the partly wound roll as it passes to the second roller 9. When the roll is fully wound a knife cuts the tensioned web between the rollers 5, 9 and attaches the end to the empty roll-core now in the first winding station. The parallel side frames 1 of the machine are each formed with guide slots along which the ends of the roll spindles can slide. The first slots 17 slope downwardly and serve as the magazine for the roll-cores 18 which are retained in place by a lever 13. Cores released from the magazine slide down to the winding station Y resting on the driving roller 5. The web is passed round this roller and attached to the core. As the winding proceeds the size of the roll increases thereby causing the spindle ends to rise up the slot 7. When they reach the point a they slide under gravity down the slot 8 to the point b so that the outer surface of the roll rests on the second driving roller 9. As the spindle ends move down the slot 8 they actuate cam-shaped extensions of levers 12, 13 controlling the empty cores in the magazine so that lever 12 is first rotated against a spring to engage and hold the next-to-end core in the magazine and lever 13 is rotated against a spring to release the end core which slides down to the first winding station Y. The winding of the partly wound roll continues in contact with roller 9, the spindle ends rising up slots 10 and the web being maintained in a state of tension between rollers 5 and 9. When the roll reaches a predetermined size, its surface 21 bears on an arm 22 and actuates an electric switch adapted to operate a knife blade 23 and fingers 25 which take the severed end and attach it to the new core as shown in dotted lines. The process then repeats automatically.
Patent GB-675684-A (GB)
Title: Improved means for effecting circumferential registration in rotary printing machines
IPC: B41F13/14
Filed: 1949-12-31
Abstract: 675,684. Rotary printing-machines. RAS, M. Dec. 31, 1949 [Jan. 7, 1949], No. 33479/49. Class 100 (ii). In cylinder drive mechanism wherein one of a pair of helical gears is axially movable for circumferential registration, the movable gear has an axially extended hub externally splined to engage internal splines of a gear rigid with the associated cylinder and forming part of the driving train. As shown the .rubber offset cylinder 2 of a rotary printing machine receives its drive from the impression cylinder shaft via a wide helical gear which meshes with the gear 7, and the gear 8 keyed to the shaft 16 drives a gear on the plate cylinder shaft; the gear 8 is wide to allow of axial adjustment of the plate cylinder, and has an internally splined part 14 which engages a splined extension 13 of the hub of the gear 7 to allow axial movement of the latter under control of a rod 17 connected thereto by a disc 18 and passing through the hollow shaft 16 to manual adjusting mechanism at the far end.
Patent GB-792483-A (GB)
Title: Improvements in or relating to the manufacture of tennis and like balls
Inventor: FINNEN JOHN PATRICK
IPC: B29D22/04
Filed: 1955-11-23
Abstract: 792,483. Felt. DUNLOP RUBBER CO., Ltd. Nov. 7, 1956 [Nov. 23, 1955], No. 33517/55. Class 42 (2). [Also in Group XV] In forming a felted cover on a tennis or like ball core, a layer of feltable fibres is applied to the core, the covered core is enshrouded by a firmly-fitting, resilient, porous container and the fibres are felted in the presence of a felting fluid. As shown, the core 1 is coated with layers 2, 3, 4 of waterproof adhesive, acid or alkaline ice and feltable fibres respectively and is then enclosed in a spherical cover 5 of sponge rubber having an equatorial split 6 for insertion of the covered core. A second cover is then applied, the splits in the covers being staggered. The assembly is then placed in a felting drum and felted, the ice melting either by applied steam or by atmospheric heat, excess liquid draining through the covers. Only the initial felting need be done in the covers 5. In a modification, the ice layer may be omitted and the assembly is dipped in a felting liquid before insertion in the felting drum.
Patent GB-618911-A (GB)
Title: Improved nail
IPC: F16B15/04
Filed: 1946-11-11
Abstract: 618,911. Nails. FORD MOTOR CO., Ltd., and LEEK, J. W. Nov. 11, 1946, No. 33521. [Class 89 (ii)] A nail has the point formed. eccentric to the axis by cutting across the shank obliquely at c thus bringing the point onto the circumference of the nail. This causes the nail to deflect slightly from the vertical when driven by a nailing- machine and makes the nail self clinching when it emerges from the wood &c. and strikes the hardened steel bench e.
Patent GB-193196-A (GB)
Title: Improvements in or applicable to trucks, movable carriers, portable receptacles, vehicles and such like
IPC: B65D88/62
Filed: 1921-12-14
Abstract: 193,196. Johnson &. Sons., Ltd., C. H., and Paterson, J. Dec. 14. 1921. Vehicle fittings; skips.-A transport wagon or portable receptacle a is provided with a flexible impervious liner b which is secured at b' and covers the ends (or sides) and the bottom of the receptacle, and can be wound on to a drum c for discharging the contents over the end of the receptacle. The edges of the liner may be resilient, or the liner may be slightly wider than the receptacle, its edges being " gimped " or " vandyked." The Figure shows a truck for transporting paper pulp. The drum c is carried bv a removable or hinged superstructure d having hinged or sliding wings d<x> at the discharge end of the truck to guide the pulp over an apron b<2>. The superstructure may also carry rotating cutters on a shaft geared to the drum shaft.
Patent GB-1213558-A (GB)
Title: Process for the production of 1,1-dihydroperfluoroalkanols
Inventor: NIEDERPRUEM HANS
IPC: C07C29/147
Filed: 1968-07-15
Abstract: 1,213,558. 1,1 - Dihydroperfluoroalkanols. FARBENFABRIKEN BAYER A.G. 15 July, 1968 [22 July, 1967], No. 33609/68. Heading C2C. 1,1-Dihydroperfluoroalkanols of the formula R f -CH 2 -OH are obtained by reducing perfluoroalkanoic acids or esters thereof of the formula R f COOR with alkali metal borohydrides at 20 to 100‹ C., R f  being a C 1-12  perfluoroaliphatic radical and R being a hydrogen atom or a C 1-4  alkyl radical and the molar ratio of alkali-metal borohydride to carboxylic compound being at least 0À75:1.
Patent GB-1298282-A (GB)
Title: Improvements in or relating to y-junction circulators
Inventor: KNERR REINHARD HEINRICH
IPC: H01P1/383
Filed: 1970-01-30
Abstract: 1298282 Circulstors WESTERN ELECTRIC CO Inc 30 Jan 1970 [3 Feb 1969] 33706/72 Divided out of 1298281 Heading H1W In order to provide capacitance resonating with the inductance of the arms of a stripline circulator, the arms are provided with conductive lateral members. In the unbalanced Y- circulator of Fig. 1, strip conductors 11, 12, 13 are earthed at one end by pins 14, 15, 16 extending through the ferrite element 20 to the ground plane. Lateral interdigitated extensions, e.g. 23, 24 of the arms provide capacitance between the live end of each arm and the earthy end of either adjacent arm. The arms are split where they overlap near the centre of the circulator. In the modification of Fig. 5, one end of each arm is connected to an annular strip conductor 39 which is earthed by pins 35 at the three points where the live ends of the arms pass above it.
Patent GB-373097-A (GB)
Title: Device for the automatic inflation of pneumatic tyres and a pump
IPC: B60C23/12
Filed: 1930-11-10
Abstract: 373,097. Actuating compressors. CULK, R. and JOSEF, R., Eggenberg, near Graz, Austria. Nov. 10, 1930, No. 33803. Convention date, Dec. 3, 1929. Void [Published under Sect. 91 of the Acts]. [Class 8 (i).] The shaft, 8 Fig. 1, of a tyre pump carries a pinion 9 engaging a toothed wheel 11 attached to a disc 10 fixed on the spindle of a bicycle wheel. A spring-pressed bolt 26 secures the parts 10, 11 together when desired, causing the motion of the wheel to rotate the'pinion 9 and drive the pump. This comprises a piston 16 and cylinder 19 secured to opposite sides of a swash plate 13 and reciprocated oppositely within an outer cylinder. 1. Fig. 4 shows a modified drive comprising a'bolt 32 passing through a cam disc 13<1> and driving a piston 161 in a fixed cylinder.
Patent GB-898463-A (GB)
Title: Improvements in electrical circuit interrupters
IPC: H01H3/30
Filed: 1958-12-02
Abstract: 898,463. Gas-blast switches. S. & C. ELECTRIC CO. Dec. 2, 1958 [Dec. 23, 1957], No. 33805/60. Divided out of 898,462. Drawings to Specification. Class 38 (5). The subject-matter of this Specification is identical with that of Specification 898,462, but the claims are directed to the arrangement of the multi-break gas-blast interrupter unit.
Patent GB-1199897-A (GB)
Title: Improvements in Railway Vehicle or Like Resilient Wheels
Inventor: BJORK JAN
IPC: B60B17/00
Filed: 1969-07-05
Abstract: 1,199,897. Resilient wheels. SVENSKA AB. BROMSREGULATOR. 5 July, 1969, No. 34022/69. Heading B7C. A resilient railway vehicle wheel comprises a rim 5 having a flange 6 extending between axially spaced wheel discs 2, 3, integral with or secured to a hub portion 1, and a plurality of rubber discs 7 mounted on circumferentially spaced bolts 8, each rubber disc being secured to a metal plate 12 at its surface facing the corresponding wheel disc, and each of the plates 12 having a central frusto-conical portion 14 clamped between a shoulder on the respective bolt and the corresponding wheel disc. A plate 13 is seamed to the appropriate face of each disc 2 and 3. The plates 12 and plates 13, seated in the flange 6 at 15, are secured to the rubber discs by vulcanization or adhesive. Wheel disc 3 is detachable by means of screws 4. The plates 13 have spacers 17 engaging holes in flange 6.
Patent GB-291310-A (GB)
Title: Improvements in pencil sharpening devices
IPC: B43L23/00
Filed: 1927-12-16
Abstract: 291,310. Cata, R. Marpons-. Dec. 16, 1927. Pencil sharpeners.-A pencil sharpener of the kind comprising pivoted jaws with inner abrasive surfaces is arranged so that the jaws 1, 2 tend to close under the action of a spring 8, but can be opened by pressure on fingerpiece extensions 6, 7. One of the jaws may be provided with an adjustable stop-screw 9 to determine the angle between the jaws.
Patent GB-850453-A (GB)
Title: Improvements in photopolymerisable compositions and articles made from them
IPC: G03F7/032
Filed: 1958-10-24
Abstract: Photopolymerizable compositions comprise (1) a polymerization effective amount of an addition polymerization initiator activatable by actinic light but not thermally activatable at temperatures below 85  DEG C., (2) a normally solid or liquid ethylenically unsaturated addition polymerisable compound capable of forming a high polymer under the influence of said initiator after it has been photo-activated and having a boiling point above 100  DEG C. under atmospheric pressure, and (3) a chain extended linear polyalkylene ether glycol polyurethane derived from a polyalkylene ether glycol of molecular weight at least 400, said components being mutually compatible and the polymerizable compound (2) being present in amounts 5 to 60% by weight of the composition.  The initiator may be diacetyl, benzil, benzoin, pivaloin, benzoin methyl and ethyl ethers, a -methylbenzoin, a -allyl benzoin, a -phenyl benzoin, anthraquinone, naphthaquinnone and O-alkyl xanthate esters.  Many suitable glycols, e.g. polytetramethylene ether glycol, polyethylene ether glycol, polypropylene ether glycol, 1,2-polydimethylethylene ether glycol and polydecamethylene ether glycol; diisocyanates e.g. 2,4-tolylene, m-phenylene, 4-chloro-1,3-phenylene, 4,41biphenylene, 1,4-tetramethylene, 1,6-hexamethylene, 1,4-cyclohexylene and 1,5-tetrahydronaphthalene diisocyanates; and chain extenders, e.g. ethylene diamine, 2,4-tolylene diamine, ethylene glycol, diethylene glycol, hexamethylene glycol, adipic acid, terephthalic acid, adipamide, 1,2-ethanedithiol, monoethanolamine, 4-aminobenzoic acid, mphenylene diamine, propylene diamine, aminopropionic acid, 1,4-cyclohexanedisulphonamide and 1,3-propanedisulphonamide; are listed and examples describe compositions comprising polyurethanes derived from polytetramethylene ether glycol, 1,4-tolylene diisocyanate and ethylene diamine, and (I) triethylene glycol dimethacrylate, (II) triethylene glycol diacrylate and (III) tetramethylene glycol diacrylate.  Many polymerisable compounds are listed, including esters of acrylic, methacrylic, maleic, fumaric and vinylbenzoic acid, substituted amides of acrylic and methacrylic acids, styrene, vinyl esters and unsaturated aldehydes such as a -vinyl crotonaldehyde, those containing multiple unsaturation being preferred.  The compositions may also contain fillers, e.g. organophilic silicas, bentonites and powdered glass, polyvinylacetals, alkyd resins, cellulose esters and ethers, polyglycol ethers, polyethylene oxides and polyketones.  The compositions may be coated, e.g. from solutions in tetrahydrofuran, on base materials and used in the production of relief images for printing.  Specifications 741,294, 741,441, 741,470, 792,840, 796,041, 796,044, 801,023 and U.S.A. Specifications 2,492,955 and 2,833,740 are referred to.
Patent GB-889905-A (GB)
Title: Improvements in descaling machines
Inventor: FINLOW MICHAEL LEWIS
IPC: B24B5/38
Filed: 1959-10-09
Abstract: 889,905. De-scaling wire by brushing. PRING & SON Ltd., JOHN. Oct. 10. 1960 [Oct. 9, 1959], No. 34233/59. Class 60. A wire de-scaling machine comprises acasingA rotatable about the axis XX of the wire and mounted in bearings A<SP>1</SP> in a frame, the casing carrying at right angles to the rotational axis two spindles B<SP>1</SP>, each of which carries at its inner end a brush C and at its outer end, outside the casing, arms D supporting a rim d engaging a friction surface d<SP>2</SP> on the rim of a non-rotary disc D<SP>1</SP> mounted in the frame. The disc D<SP>1</SP> is urged into contact with the rims by adjustable springs d<SP>3</SP> so that, as the casing rotates about the axis XX, the spindles B<SP>1</SP> cause the brushes to rotate about their axes. The positions of the brushes C relative to the wire may be adjusted by the screwed shanks c of the spindles B<SP>1</SP>. Hardened bushes a<SP>4</SP> and d<SP>4</SP> are provided within the stub shafts a<SP>2</SP>, a<SP>3</SP>, for the passage of the wire through the machine. Seals a<SP>5</SP> protect the bearings from scale and dirt.
Patent GB-742349-A (GB)
Title: An improved method of bleaching threads or fibres of polyacrylonitrile
IPC: D06L4/10
Filed: 1953-12-09
Abstract: Threads or fibres of polyacrylonitrile are bleached by treatment with an aqueous solution of a permanganic salt, e.g. potassium permanganate, at a pH less than and temperatures between 20 DEG C. and 100 DEG C., followed by washing with an aqueous solution of a substance capable of reducing the combined manganese to manganous ions, for example, sodium bisulphite.  The pH of each solution may be adjusted, e.g. to 2, with sulphuric acid.  The threads or fibres may be dried without heating after immersion in each bath.