baber/WOPTO huggingface dataset:
Patent GB-187085-A (GB)
Title: Improvements in belt-fasteners
IPC: F16G7/00
Filed: 1922-06-17
Abstract: 187,085. Holroyd, J. S. June 17, 1922. Belt fastenings.-Relates to belt fastenings of the kind in which a transverse double headed pin f connects U-shaped members attached to the belt ends, one U-shaped member a being bifurcated and engaging the heads of the pin whilst the other U member a engages the reduced or stem portion. The invention consists in loosely mounting a hardened steel sleeve h on the reduced or stem portion, one of the heads g of the pin being affixed to the stem after the sleeve has been placed thereon.
Patent GB-480253-A (GB)
Title: Improvements in electric relays and amplifiers
IPC: H01J17/04
Filed: 1936-08-18
Abstract: 480,253. Valve relay circuits. TURNER, L. B. Aug. 18, 1936, No. 22698. [Classes 39 (i) and 40 (v)] A control circuit for a gas-filled discharge tube .comprises means for energizing- the anode and grid circuits with alternating current of the same frequency, and a phase-shifting network for controlling the relative phase between grid and anode, including a resistance constituted by the anode-cathode space of a thermionic valve whose conductance is controlled by the input signals. In the Figure, the relay tube V2 has its anode circuit supplied with alternating current through tramsformer Ta, its grid circuit being supplied from the same source over transformer Tg through a, resistance-reactance phase-shifting network constituted by the anode resistance R of valve V1 and a choke X. The phase of the voltage Ep applied to the grid of V2 then depends on the ratio R/X and thus varies with the control voltage Es. Two different phase positions are obtainable by connecting contact B to R (to give an " on-off " control) or B to A (to give a " continuous " or amplifier-like control). A further fixed phase-shift is applied by means of the network S, C. The circuit also includes the tertiary winding e of transformer Ta, which reduces the effect of reaction of the output on the input circuit. In a modification, Fig. 4 (not shown), the grid circuit of V2 is magnetically and not directly coupled to the anode circuit of V1 ; X is then the primary of a transformer, the secondary of which is connected to S, C and a third winding on transformer Tg. The effect of mains voltage variations on the relay threshold may be reduced by a barretter resistance in the cathode heater circuit of V1. Effects of temperature changes are minimized by constructing part of the supply potentiometers for grid bias and anode voltage of V1 (e.g. P) of nickel wire which may be wound on the envelope of the tube V2 when this is of the mercury-vapour type. The invention is specially applicable to the production or modulation of large currents from minute changes in a nominally constant voltage source, e.g. for regulation purposes. The arrangement is intended for direct-current signals; alternating current signals may be dealt with by rectifying before passing to the input, except where the signal frequency is that of the supply mains, when rectification is unnecessary.
Patent GB-244839-A (GB)
Title: Improvements in trouser and other garment presses
IPC: A47G25/72
Filed: 1924-09-26
Abstract: 244,839. Britonial Manufacturing Co., Ltd., and Read, A. Sept. 26,1924. Presses.-The usual wing nut b of a trouser or like press is provided with a threaded extension b<1> allowing the pivoted screw a to be shorter than is usual. When the nut is screwed down, the underside of its head b<2> bears on the forked extension c<1> of the cross-bar c. Preferably, only the lower portion of the extension b<1> is threaded, and the hole in the head b<2> may be closed by a cap. The head b<2> of the nut may be of steel or iron, or may have a steel base, and the extension b<1> may be of a non-ferrous metal. Reference has been directed by the Comptroller to Specifications 22389/00, 110,393, and 175,137.
Patent GB-1046095-A (GB)
Title: Improvements relating to polymers of perfluorinated monomers
IPC: C08F232/00
Filed: 1964-06-02
Abstract: Octafluorocyclopentene may be hydrogenated in the presence of an alumina supported palladium catalyst at 175 DEG  to 200 DEG  C. to give a mixture of 1,2-dihydrooctafluorocyclopentane and a minor proportion of 1,1,2-trihydroheptafluorocyclopentane. The product may be treated with potassium hydroxide at 155 DEG  to 160 DEG  C. to give a mixture of hexafluorocyclopentadiene, 1-hydroheptafluorocyclopentene and 3-hydroheptafluorocyclopenteneALSO:Polymers of hexafluorocyclopentadiene may be prepared by subjecting hexafluorocyclopenta diene to polymerization conditions in the presence of a free radical forming catalyst and optionally one or more polymerizable ethylenically unsaturated compounds. Specified comonomers are ethylene, propylene, isobutylene, styrene, vinyl chloride, vinyl fluoride, vinylidene chloride, vinylidene fluoride, trifluoroethylene, tetrafluoroethylene, chlorotrifluoroethylene, hexafluoropropene, acrylic and methacrylic acids, esters and nitriles, vinyl esters, vinyl ethers and conjugated dienes. Polymerization may be effected in bulk, solution or dispersion, to give liquid polymers suitable as plasticizers and hydraulic fluids and solid polymers suitable for moulding articles and pressing into films. The polymers heat cured or vulcanized.  Examples describe (1) the bulk polymerization of hexafluorocyclopentadiene in the presence of nitrogen difluoride or azobisisobutyronitrile; (2) the copolymerization of hexafluorocyclopentadiene and tetrafluoroethylene in perfluoro-(dimethylcyclobutane) in the presence of nitrogen difluoride; the bulk copolymerization of hexafluorocyclopentadiene with (3) methyl methacrylate and (4) acrylonitrile in the presence of azobisisobutyronitrile; and (5) the copolymerization of hexafluorocyclopentadiene with hexafluoropropene and vinylidene fluoride in aqueous dispersion in the presence of ammonium persulphate, ammonium perfluorooctanoate and disodium phosphate.
Patent GB-1098405-A (GB)
Title: New dibenzocycloheptadiene derivatives and their preparation
IPC: C07D295/08
Filed: 1965-05-28
Abstract: Novel compounds of the Formula I, wherein A represents a C2- 5 alkylene radical and Z represents a di-(C1- 18 alkyl) amino radical or a saturated, mononuclear, nitrogen containing heterocycle joined to A through the nitrogen atom, optionally containing an oxygen or second nitrogen atom and optionally substituted by a C1- 5 alkyl, C7- 10 phenylalkyl or C1- 5 alkyl-(C7- 10 phenylalkyl) radical, are prepared by reacting a compound of the Formula II with a compound of the formula Y-A-Z, where Y represents a reactive ester residue, and, if desired, converting a resulting base into an acid addition salt thereof.  <FORM:1098405/C2/1> <FORM:1098405/C2/2> Therapeutic compositions, with anti-histaminic, spasmolytic and central nervous system activity, comprise compounds of the Formula I and their non-toxic acid addition salts together with a carrier in forms suitable for oral, parental and topical administration.
Patent GB-635596-A (GB)
Title: Improvements in laminar structures
IPC: C08L15/00
Filed: 1947-08-18
Abstract: In a laminar structure comprising a facing sheet bonded to a base sheet, each sheet is composed mainly of a cored thermoplastic homogeneous mixture of soft natural rubber of low elastic modulus and hard cyclised rubber resin of high elastic modulus, the cyclised rubber in the base sheet constituting 50-90 per cent by weight, and in the cover sheet 25-50 per cent, of the total weight of the two components in the sheet in question.  The rubber and cyclised rubber may be mixed at 200-250 DEG F.  The compositions may contain sulphur, anti-oxidant, plasticiser, fillers or pigments as desired.  Suitable compositions for base and cover stock respectively are as follows:-cyclised rubber 60 parts, pale crepe 40, zinc oxide 3, anti-oxidant 1, "Altax" (Registered Trade p  Mark) 1, ethylzimate ,2, sulphur 3; and cyclised rubber 30 parts, pale crepe 70, zinc oxide 5, anti-oxidant 1, "Altax" 1, stearic acid 3, sulphur 3.
Patent GB-301294-A (GB)
Title: Improvements in power engines
IPC: F01C9/00
Filed: 1928-08-09
Abstract: 301,294. Hansson, O. Aug. 9, 1928, Fixed-abutment type with oscillating vanes; working-fluid supply.-A piston member 5 which oscillates between casing abutments 15, 16 is mounted in bearings in the casing 12 and the casing is free to rotate in external bearings 48. Power is transmitted from the piston member to coaxial shafts 1. 2. to drive the propelling device for water craft described in Specification 273,226, [Class 114, Ships &c., Propelling &c.], and the casing is furnished with heavy masses 13, 14 so that the impetus received by it from an explosion in one chamber can be used in compressing an explosive mixture in another chamber. The working chambers are circular in crosssection and are formed half in the rotor and half in the casing. Inlet is by way of valves 55 and ports 36 and outlet by way of ports 38 and expanding tubes 41, 42. The casing is cooled by air drawn through the passages 47, 40 by the ejector action of the exhaust on the orifices of pipes 50, 51. In each stroke, ports 44 in the rotor register with the outlet ports 38 and cooling air thereby passes along the centre of the rotor trunnions 3 and through the hollow rotor. A modification is arranged for using steam. The oscillations of the rotor are transmitted differentially to the shafts 1, 2 by means of two crowns of flexible rods 19, 20 carried by the rotor which are engaged by perforations in two sleeves 21, 22 splined to the shafts 1, 2. In starting the motor, both sleeves are withdrawn to the free ends of the rods 19, 20 and subsequently the water craft is driven one way or the other according to which of the sleeves 21, 22, being moved towards the roots of the rods 19, 20 transmits the greater oscillations.
Patent GB-598746-A (GB)
Title: Process for manufacturing dry rectifiers for alternating currents
IPC: B60C11/04
Filed: 1945-09-07
Abstract: Copper oxide rectifiers having white metal particles adsorbed in the oxide layer are made by treating the oxidized copper plates in a gaseous atmosphere containing in suspension, particles of white metals or their oxides mixed with powdered graphite.  The process may take place in an oven at 800 DEG  to 1080 DEG  C. by vapourizing white metal and at the same time injecting graphite powder; and an electric potential may be applied between the oxidized plates and a second electrode.
Patent GB-517836-A (GB)
Title: Improvements in or relating to adjustment mechanism more particularly for electricalapparatus such as time switches, variable condensers and the like
IPC: G04F3/06
Filed: 1938-08-08
Abstract: 517,836. Adjusting wireless apparatus. CALDWELL, T. F. Aug. 8, 1938, No. 23382. [Class 37] [Also in Group XXXVII] In an adjusting device applicable to variable condensers, inductances &c. movement of a driving element such As a hand knob at a constant speed over the range of adjustment causes a driven member 46 to move at one speed over part of the range and at another speed over the rest of the range. In the case of a time switch, a hand driven by a synchronous motor is adapted to engage at the end of a predetermined time interval the member 46 and thus move a contact member 42 into the open position. The member 46 is adjusted by a mechanism of the invention, a certain angular movement of the knob at one end of the scale corresponding to 1 second and at the other end to 1/10 of a second. The knob carries round with it an arm 14 and also drives. by means of a pinion 11 a toothed sector 51, pivoted at 50, so that a stop 52 on the sector moves at a comparatively slow speed. The member 46 is carried by an arm 23 fixed relatively to a bell crank lever 21, 22, the arm 21 of which is pressed by a spring 57 so as to tend to engage a stop 56 on the arm 14. Rotation of the knob and therefore of the arm 14 in either direction from the position shown, will cause at first an equal rotation of the lever 21, 22 and therefore of the member 46. But when the arm 14 is rotated sufficiently far in the clockwise direction, an adjustable stop 53 on the arm 22 engages the stop 52 and thereafter the lever 21, 22 and member 46 move at the slower rate determined by the stop 52, the arm 21 becoming separated from the stop 56.
Patent GB-1384441-A (GB)
Title: Benzomorphan derivatives
IPC: A61K31/395
Filed: 1972-05-18
Abstract: 1384441 Benzomorphans SUMITOMO CHEMICAL CO Ltd 18 May 1972 [21 May 1971 20 Dec 1971] 23460/72 Heading C2C Novel compounds (I) (including salts thereof) wherein R is a hydrogen atom, a hydroxy group, an alkoxy group containing from 1 to 3 carbon atoms or an acyloxy group; R 1  is a hydrogen atom, an alkyl group containing from 1 to 5 carbon atoms, a phenyl group, a halophenyl group, an alkylphenyl group of which each alkyl group contains from 1 to 3 carbon atoms, an alkoxyphenyl group of which each alkoxy group contains from 1 to 3 carbon atoms, a trifluoromethylphenyl group, an alkylthiophenyl group of which each alkylthio group contains from 1 to 3 carbon atoms or a group of the formula (C m H 2m-p+1 )- (R 9 ) p  in which m is an integer of from 1 to 6, p is an integer of either 1 or 2 and R 9  is an alkoxy group containing from 1 to 3 carbon atoms; R 2  is a hydrogen atom or an alkyl group containing from 1 to 3 carbon atoms; R 3  is a hydrogen atom, an alkyl group containing from 1 to 3 carbon atoms, a phenyl group or an alkoxyphenyl group of which each alkoxy group contains from 1 to 3 carbon atoms and R 4  is a hydrogen atom or a hydroxy group, or alternatively R 3  and R 4  in combination with a carbon atom to which they are each bonded represent an alkylidene group containing from 1 to 3 carbon atoms or a carbonyl group; R 5  is a hydrogen atom or an alkyl group containing from 1 to 3 carbon atoms; R 6  is a hydrogen atom or a methyl group; and R 7  and R 8  are, each independently, a hydrogen atom or an ethyl group or methyl group and n is zero or an integer of either 1 or 2, are made by reacting (II) with AC n H 2n CN, where A signifies X.CHR 7 .CHR 8  (X is halogen), or with CHR 7  = CR 8 CN. Pharmaceutical preparations useful as analgesic agent contain (I) as active ingredient; administration is, e.g. orally or subcutaneously.
Patent GB-639017-A (GB)
Title: Improvements in rotary pumps
IPC: F04B19/02
Filed: 1947-08-25
Abstract: 639,017. Rotary pumps. MEGATOR PUMPS & COMPRESSORS, Ltd., and McCOMBIE, F. W. Aug. 25, 1947, No. 23472. [Class 110(ii)] A pump of the type described in Specification 592,432 takes in and delivers liquid without the liquid passing to the remote side of the eccentric piston 3, clean liquid being supplied to and discharged from a chamber C as by ports 13, 14 respectively. Liquid being pumped, which may contain grit, enters through a port 11 and inlets 8, when the slide 2 is at the top of its stroke, and is discharged from the pump chamber through an outlet 9, leading to a delivery 12, when the slide is lowered. The slide 2 may be made of rubber. The port 14 may contain a pressure-relief valve, and the pressure in the chamber C may be higher than that in the pumping chambers. A separate pump may supply the chamber C or, as shown in Fig. 3, part of the pumpdelivery fluid may be passed from a pipe 16 through a filter 17 to a port 18. A heater or cooler 19 may be placed in the chamber C.
Patent GB-297455-A (GB)
IPC: B25G1/00
Filed: 1928-08-15
Abstract: 297,455. Gontal, C. Sept. 22, 1927, [Convention date]. Rigid - jam wrenches; handles.-A box spanner comprises a head 1 with nut aperture 2 fixed on the end of a stem 4 provided at. its rear end with a member 6 in which a sliding tommy bar 7 is mounted. The tommy bar is cranked at 7<a> to enable it to be rotated continuously and is secured in different positions in the member 6 by means of a. spring-pressed ball 9 and notches 11. A lateral nut aperture 3 is provided for initial slackening and final tightening. The grip 5 on the stem 4 is preferably rotatable.
Patent GB-773933-A (GB)
Title: Improvements in temple mounting structure for spectacles
IPC: G02C1/02
Filed: 1955-08-16
Abstract: 773,933. Spectacles. BAUSCH & LOMB OPTICAL CO. Aug. 16, 1955 [Oct. 6, 1954], No. 23562/55. Class 97(1) Spectacle frames having temple supporting bars 16 which are fixed at the nasal or bridge portion of the structure and extend outwardly above the lenses to the hinges which support the temples 21, are provided with yieldable braces 22 between the lenses and the bars 16 so as to support the latter at their outer ends. In the embodiment shown, the spectacles are half-rimmed, the lenses 13 being secured to the rims 11 by brackets 14, and the yieldable braces are S-shaped and are secured to the outed ends of the rims 11. When split-rims are used to support the lenses, the yieldable braces 22 are similarly attached to the rims. Alternatively, the spectacles may be rimless, in which case the braces 22 are secured to lugs fixed in the outer edges of the lenses. The yieldable braces may be of any other form including a coil spring.
Patent GB-1125343-A (GB)
Title: Improvements in or relating to dock gates, sluice gates and like structures
Inventor: ARCH WILLIAM HENRY
IPC: E02B7/20
Filed: 1966-05-26
Abstract: 1,125,343. Sealing dock and sluice gates. SIR WILLIAM ARROL & CO. Ltd. 26 May, 1967 [26 May, 1966], No. 23609/66. Heading E1H. A dock gate, sluice gate or like structure incorporating sealing strips co-operative with other surfaces has a grout 5 consisting of a polymerized synthetic resin located between each sealing strip 3 and the adjacent surface 6 of the gate or like structure 1.
Patent GB-1218416-A (GB)
Title: Process for the simultaneous preparation of 1,2-dichloroethane and 1,1,2,2-tetrachloroethane
Inventor: ANTONINI ALBERT
IPC: B01J27/10
Filed: 1968-05-17
Abstract: 1,218,416. Oxychlorination process. PRODUITS CHIMIQUES PECHINEY - SAINTGOBAIN. 17 May, 1968 [19 May, 1967], No. 23675/68. Heading C2C. 1,2 - Dichloroethane and 1,1,2,2 - tetrachloroethane are produced by passing a gaseous mixture comprising HCl, a mixture of ethylene and dichloroethylenes containing 40-95 molar per cent ethylene, and an oxygen-containing gas, through a reaction zone containing a fluidized bed catalyst at 200‹ to 360‹ C., the catalyst being supported on a carrier of particle size 10 to 900 microns and of average specific surface area above 1 m<SP>2</SP>/g. The gaseous mixture may also contain 1,2-dichloroethane and/or 1,1,2,2-tetrachloroethane, the molar ratio of which is less than 2 with respect to the reactants. 1 ,1,2-Trichloroethane may be produced as a byproduct.
Patent GB-155659-A (GB)
Title: Improvements in connection with "in-motion" recorders for vehicles for road or rail and aircraft
IPC: B60R9/00
Filed: 1919-09-26
Abstract: 155,659. Hollingdrake, H. Sept. 26, 1919. Mounting articles on bodies. - " Inmotion " recorders are mounted on motor vehicles &c. so that they cannot be removed or tampered with by unauthorised persons. A bracket 2 is bolted to the dash-board 1 or other convenient part of the vehicle. The recorder is contained in a box 5 which slides on the bracket by means of inwardly-projecting flanges 6 or by dove-tailed grooves. When the box is pushed home it prevents access to the nuts 4 and thus prevents removal of the bracket from the vehicle A double hasp 8 is pivoted to the hinged lid of the box, whereby the lid is secured by one padlock 11 and the box secured to the bracket by a second padlock 14. By removing the padlock 14 the box can be removed and taken to an authorised official for inspection, without danger of tampering with the instrument in transit.
Patent GB-1159838-A (GB)
Title: Improvements in Arc Welding Electrodes
Inventor: MERCER JEFFREY FRANCIS
IPC: B23K35/365
Filed: 1967-05-22
Abstract: 1,159,838. Welding by fusion. MUREX WELDING PROCESSES Ltd. 16 May, 1968 [22 May, 1967], No. 23709/67. Heading B3R. [Also in Division C7] A low hydrogen manual arc welding electrode consists of a core of mild steel, e.g., rimming steel, and a flux coating of the lime/fluoride type containing at least 8% iron powder of the following composition:- the flux/core weight ratio being between 1: 3.5 5 and 1-2; 1. The coating may have the following composition:- calcium carbonate .. .. .. 30% calcium fluoride .. .. .. 17% rutile .. .. .. .. .. 8% ferro-manganese (80% Mn) .... . 3% ferro-silicon (45% Si) ...... . 8% ferro-titanium (40% Ti) .. .. 2% iron powder .. .. .. .. 32% with a binder of sodium and/or potassium silicate. The following constituents are also referred to:-alloying elements (e.g., Ni, Cr, Mo, V) silica, ilmenite, aluminium silicate, magnesium minerals, ferro-aluminium and ferro-zirconium.
Patent GB-317479-A (GB)
Title: Improvements in and relating to milling cutters
IPC: B23C5/22
Filed: 1929-08-02
Abstract: 317,479. Buchm³ller, A. Aug. 18, 1928, [Convention date]. Milling - cutters. - An inserted blade milling-cutter has the blades e secured in axial grooves in the outer surface of the cylindrical body a by wedges f. The grooves may be cylindrical as shown in the figure or may be polygonal, and the angle of the cutting edges g may be varied to suit different materials being operated upon by rotatably adjusting the blades in their grooves. The wedges are cut away at h to expose the cutting edges g and the blades may be adjusted axially in their grooves. The co-acting flat surfaces of the wedges and blades have a mutual taper. A conical shank on the body has an internally screwed co-axial hole in the end for attachment to a machine spindle.
Patent GB-403475-A (GB)
Title: Improvements in telephone systems
IPC: H04M19/00
Filed: 1932-08-25
Abstract: 403,475. Exchange systems. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, London, GRINSTED, W. H., Under the Plane, London Lane, Bromley, Kent, and TEES, J. E., 27, Elderslie Road, Eltham, London. Aug. 25, 1932, No. 23784. Addition to 372,004. [Class 40 (iv).] Certain bridges comprising, as described in the parent Specification, ballast resistances to keep the feed current between narrow limits in series with the feed impedances, which have magnetic circuits improved as described in Specification 254,364, [Class 38 (v), Electric switches &c.], are fed from a source of current of considerably higher voltage than that employed for the normal bridges in the same exchange. For example, the feed relay on the office side of an outgoing repeater or of an incoming selector-repeater may have one winding fed from the normal battery and the other from the booster metering battery. In a satellite the feed bridge in the discriminating selector may be cut out on outgoing calls, an increased-voltage feed being provided in the outgoing repeater. Two balanced pairs of ballast resistances may be employed as shown in Fig. 3.
Patent GB-1422769-A (GB)
Title: Process for peeling off an aluminium foil
IPC: H05K3/02
Filed: 1974-05-29
Abstract: 1422769 Peeling Al off Cu PERSTORP AB 29 May 1974 [20 June 1973] 23795/74 Heading C7D Aluminium foil is peeled from a copper layer in the presence of an aqueous medium at the Al-Cu boundary. The Cu layer (which may be on an insulating base suitable for making printed circuits) may be immersed in water or a continuous stream of water may be directed at the boundary.