baber/WOPTO huggingface dataset:
Patent GB-1324373-A (GB)
Title: Process for preparing cellulosic fibres
IPC: D04H1/54
Filed: 1970-09-10
Abstract: 1324373 Cellulosic fibres ITT INDUSTRIES Inc 10 Sept 1970 [15 Sept 1969] 43284/70 Heading B5B A process for preparing cellulosic fibres comprises the steps of deaerating a cellulosic solution, extruding the solution into a precipitating acid bath through a fibre forming device formed by sintering aggregates or from woven screens of metal or plastics material and comprising a porous extrusion means having orifices comprising at least 10% of the total extrusion surface area of the extrusion means, stretching the filaments thus formed by between 10 and 60%, washing and drying the stretched filaments and optionally cutting the filaments to form staple fibre. The orifices preferably comprise 10-35% of the total extrusion surface area, the fibre forming device being a P.T.F.E. coated or an uncoated double dutch twill stainless steel screen or a porous sintered stainless steel disc. In examples fibres are prepared from (a) a viscose solution (prepared by xanthating dissolved wood pulp and having a salt index of 1À5-7 and containing 7-12% by weight cellulose and 4 to 6% by weight NaOH, the solution being extruded at 22-55 C. into an acid precipitation bath; (b) an hydroxyethyl cellulose solution prepared by etherifying an alkali cellulose crumb and dissolving the etherified crumb in NaOH; and (c) an acid solution of cellulose triacetate prepared by esterification of an alkali cellulose with an acetic acid-anhydride mixture in the presence of a catalyst. The viscose and hydroxyethyl cellulose were extruded into baths containing H 2 SO 4 , Na 2 SO 4  and optionally lauryl pyridinium chloride and the cellulose acetate was extruded into an aqeuous bath containing 5 wt. per cent acetic acid and 15 wt. per cent sodium acetate.
Patent GB-1168434-A (GB)
Title: Improvements relating to Hot Water Tanks
Inventor: CARSON-ABBOTT YVON
IPC: F24H9/12
Filed: 1966-09-28
Abstract: 1,168,434. Pipe connections. G. K. N. SANKEY Ltd. 31 July, 1967 [28 Sept., 1966], No. 43330/66. Heading F2G. [Also in Division F4] A pipe is connected to a hot-water tank by forming an aperture therein and then securing the pipe 15 to the adjacent wall 10 by means of welding, brazing or soldering. The aperture may be provided with an inwardly or outwardly directed collar or defined by a plain hole whilst the flange 17 on the pipe may be dispensed with.
Patent GB-1009090-A (GB)
Title: Improvements in golf practice machines
IPC: A63B69/36
Filed: 1962-11-16
Abstract: 1,009,090. Golf-practising apparatus. D. H. COCKBURN. Nov. 15, 1963 [Nov. 16, 1962], No. 43474/62. Heading A6D. Apparatus for use in practising golf strokes comprises a member 4 simulating a golf club supported by an arm 13 so as to be rotatable about its longitudinal axis, the arm comprising two pivots 6 and 14 and means 10, 11, 2 and 18 for adjusting the height of these two pivots so that the axis of pivot 6 passes substantially through the wrists of the player, whilst the axis of pivot 14 passes substantially through the top of the hips and the line joining the elbows of the player. Thus the arm 13 constrains the club 14 to move in the correct arcuate path, whilst permitting the player to adopt the correct movement of the hips and wrists. A pin 29 on the club engages with a notch 28 in the supporting sleeve 3 to indicate the correct position of the club for addressing either the ball, or a spring-like projection which may be provided in place of a ball. In a modified arrangement, the arm 13 is supported from a wall or bracket situated in front of the player, the support comprising two relatively adjustable members providing a means of varying the inclination of the club to the horizontal.
Patent GB-1217709-A (GB)
Title: Printing plates
IPC: B41C1/10
Filed: 1968-09-13
Abstract: 1,217,709. Curing polymers by laser beam. FMC CORP. 13 Sept., 1968 [14 Sept., 1967], No. 43570/68. Heading C3P. [Also in Division G2] Resins compositions which are curable by laser beams comprise a thermally cross-linkable allylic ester resin obtained by the polymerization of an addition polymerizable allyl carboxylic ester having a plurality of aliphatic ethylenically unsaturated linkages, at least one of which is an allyl ester group, the resin having residual unsaturation and being a solvent-soluble material which is a solid at ambient temperatures and which undergoes very little shrinkage when further polymerized by heat at room temperature; and a peroxide catalyst which accelerates polymerization of the said cross-linkable allylic ester resin. Preferred resins are (A) prepolymers of esters of formulµ: (in which R is allyl, n is 1-17, y is 1 or 2, and X is halogen, OH, optionally substituted phenyl, furfuryl or C 1-4  alkyl or alkoxy); (B) copolymers of (i) an allyl ester of an unsaturated monobasic acid or (ii) a poly(allyl)ester of an aliphatic carboxylic acid, with another monomer (e.g. butadiene, styrene, methylmethacrylate, vinylidene chloride, vinyl chloride, vinyl acetate, diethylene glycol, maleate, cinnamyl cinnamate) and (C) polymers of allyl esters of benzene, naphthalene and s-triazine carboxylic acids.
Patent GB-1131071-A (GB)
Title: Improvements in or relating to propulsion units for marine vessels
Inventor: CORLETT EWAN CHRISTIAN BREW
IPC: B63H5/14
Filed: 1964-10-27
Abstract: 1,131,071. Propelling ships. HYDROCONIC Ltd. 27 Oct., 1965 [27 Oct., 1964], No. 43796/64. Heading B7V. A propulsion unit for a marine vessel comprises a propeller 11, Fig. 1, situated in a nozzle or duct 13, a gap 14 between the tip of each blade 12 due to manufacturing tolerance being bridged by an extension piece made of a material, e.g. nylon, that does not cause significant friction or drag if the said piece makes contact with the nozzle or duct. The extension piece may be constituted by a strip 15, Fig. 3, of the material aforesaid, which strip has a tongue 16 lodged in the associated blade and secured by a plurality of bolts 18. In a modification, Fig. 4 (not shown), the tongue 16 is secured by a retaining plate (19) that is fixed to the blade by a plurality of transverse pins. In another modification, Fig. 5 (not shown), the tongue is located in a recess within the forward or front face of the blade. In a further modification, Fig. 6 (not shown), the strip 15 has a rectangular profile in cross-section and is thinner than that shown in Fig. 3.
Patent GB-1164313-A (GB)
Title: Process for Preparing Cross-Linked Proteins and Peptides.
IPC: A61K38/00
Filed: 1966-09-30
Abstract: 1,164,313. Vaccines, hormone preparations &c. FARBWERKE HOECHST A.G. 30 Sept., 1966 [30 Sept., 1965], No. 43896/66. Heading A5B. :[Also in Division C3] Proteins or polypeptides are cross-linked with polyamide condensates (see Division C3). The process is applicable inter alia to gonadotropins, insulin, glucagon, ACTH, vasopressin, virus proteins e.g. those of poliomyelitis, influenza, or measles, and diphtheria or tetanus toxins. In Examples, pig insulin and human choriogonadotropin are so treated.
Patent GB-1481078-A (GB)
Title: Multi-step chemical and radiation process for the production of gas
IPC: C01B3/06
Filed: 1974-10-11
Abstract: 1481078 Hydrogen TEXAS GAS TRANMISSION CORP 11 Oct 1974 [19 Nov 1973] 44068/74 Heading C1A Hydrogen is produced by mixing water and a halogen (preferably chlorine), heating the mixture so as to produce oxygen and a hydrogen halide, subjecting the hydrogen halide to radiation from a nuclear fusion reaction to form hydrogen and the original halogen, and separating the hydrogen. The halogen formed may be recycled to the first step.
Patent GB-1197802-A (GB)
Title: Process for the preparation of 3,5-Dimethyl Phenol
Inventor: ADAMS CHARLES REX
IPC: C07C37/50
Filed: 1967-09-28
Abstract: 1,197,802. 3,5-Dimethyl phenol. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 28 Sept., 1967 [30 Sept., 1966], No. 44136/67. Heading C2C. 3,5-Dimethyl phenol is obtained by catalytically splitting off methane from isophorone in the gaseous phase, in the presence of a catalyst containing alumina, chromium III oxide and 15-40 mol. per cent of an alkali metal oxide based on the chromium III oxide. The preferred alkali metal oxide is potassium oxide and preferably the process is carried out at a temperature in the range 600-650‹ C.
Patent GB-949884-A (GB)
Title: Vehicle compartment latches
Inventor: ATTWOOD WILLIAM SPENCER
IPC: E05C19/06
Filed: 1961-12-09
Abstract: 949,884. Latch fastenings. GENERAL MOTORS Ltd. Nov. 22, 1962 [Dec. 9, 1961], No. 44140/61. Heading E2A. A motor vehicle compartment has a hinged cover securable by a latch comprising a pair of stiff but resilient wires each coiled about a fixed support 20, 22 and having portions extending therefrom which are bent and arranged so that the wires provide on the one hand a pair of spring catch members 12, 14 engageable with a striker 34 and on the other hand provides a pair of springs 24, 26 arranged to exert an opening force on the cover. In the construction shown the catch members cross each other to leave a gap between them through which the striker enters to force them apart so that after the striker has penetrated a certain distance the wires can engage underneath projections 29a, 42a the projections being longitudinally separated so that one member 14 acts as a safety catch member and the other member 12 as the main catch member. The cross-over of the wires permits the striker to be released by pressing the free ends 12B, 14B together. The springs 24, 26 of the wires beyond the supports 20, 22 are turned downwardly and then laterally so that when the catch member 12 is engaged with the projection 42a lateral portions of the springs 24, 26 press against a part 27a of the striker so that when the striker is released the bonnet is moved upwardly by the springs 24, 26. The supports 20 and 22 are pins carried by a bracket 11 attached to the bonnet and the springs 24, 26 extend through holes in this bracket. Movement of the catch members is guided by a casing 38 secured to the bracket 11.
Patent GB-986543-A (GB)
Title: A method of manufacturing a magnetic head assembly
IPC: G11B5/187
Filed: 1962-11-22
Abstract: 986,543. Making magnetic heads. SONY CORPORATION. Nov. 22, 1962 [Nov. 22, 1961], No. 44265/62. Heading B3A. [Also in Division G5] In a method of manufacturing magnetic heads having a core of a first magnetic material 1 (e.g. ferrite) and a magnetic gap defined by polepieces of a second magnetic material 4 (of e.g. an iron-aluminium or an iron-silicon-aluminium alloy), a bar of the first material is cut to an angle on one face, after which a strip of the second material is stuck to the face, and the side of the bar hollowed out. Two such structures 1 and 12 are stuck with their concave sides together and their bases on a glass strip 11. The gap 10 between the strips of the second material is filled with a non-magnetic material and a non- magnetic conductive material 9, such as copper or solder, is interposed between the core members to reduce leakage flux. The whole assembly is then cut into a number of magnetic heads, each of which is mounted in a brass block 13 and provided with electrical windings 14.
Patent GB-1274153-A (GB)
Title: Door closer connecting means
Inventor: JENTSCH DIETRICH
IPC: E05F3/00
Filed: 1970-09-16
Abstract: 1,274,153. Door closer linkage mechanism. DORKEN & MANKEL KG. 16 Sept., 1970 [17 Oct., 1969], No. 44274/70. Heading E2M. [Also in Division F2] A door closer 15, e.g. in a door lintel 11, having a closer shaft 16 is coupled to a door having an upper member 13 by means of a linkage arm 19 connected to the door and having a recess which is closed by a bridge member 28 which non-rotatably retains the closer shaft 16 therein; the bridge member cooperates only with the upper part of the arm. A pressure screw 25 mounted to a support plate 20 for the arm 19 cooperates with a U-shaped slot in the arm 19 for adjusting the arms position relative to the door in a direction parallel to its width. The arm may be angularly adjusted by screws 22 cooperating with raised edges 21 of the plate 20. A locking screw 27 may be provided. The arm may be stepped at the closer shaft 16 end as shown.
Patent GB-1224335-A (GB)
Title: N-channel field effect transistor
Inventor: HARRIS RONALD EUGENE
IPC: H01L21/00
Filed: 1968-09-18
Abstract: 1,224,335. Semi-conductor devices. NORTH AMERICAN ROCKWELL CORP. 18 Sept., 1968 [28 Nov., 1967], No. 44418/68. Heading HlK. In an FET having N type source and drain regions the source and channel are separated by a P type isolation region. The P type reigon reduces the current which normally flows with zero gate bias. As shown, Fig. 1 an N channel enhancement mode IGFET is produced in a high resistivity P type silicon substrate 12 by forming a silicon dioxide layer 16 photomasking and exposing source and drain region sites, covering the drain site and diffusing boron into the source site to form P+ type isolation region 30 and then forming N+ type source and drain regions 18, 20 by diffusion. Aluminium is vapour deposited through a mask to form source, drain and gate electrodes 22, 24, 28. In a second embodiment, Fig. 5 (not shown) a thin P type semi-conductor layer (50) is epitaxially deposited on a single crystal insulating substrate (42), a central strip is masked with oxide (54), a P+ type zone (52) is formed extending beneath the oxide at one side and N+ type source and drain regions are produced by diffusion. The P+ type zone (52) separates the source from the channel. The semi-conductor material may be silicon, germanium or gallium arsenide, and the insulating substrate may be of sapphire, magnesium oxide, beryllium oxide or spinel. In a second modification, Fig. 7 (not shown), the P<SP>+</SP> type region is extended laterally and is provided with an electrode by means of which this region may be biased. The device can operate in both the depletion and the enhancement modes.
Patent GB-1109969-A (GB)
Title: Improvements in or relating to shock absorbers for automatic firearms
IPC: F41A3/90
Filed: 1966-10-05
Abstract: 1,109,969. Shock absorbers. RHEINMETALL G.m.b.H. 5 Oct., 1966 [8 Oct., 1965], No. 44508/66. Addition to 992,932. Heading F2S. [Also in Division F3] A shock absorber for an automatic firearm comprises a piston 7 working in a cylinder 1, the damping medium 2 consisting of solid, pellet-shaped bodies, e.g. steel balls of about 1 mm. diameter. The damping medium 2 is confined in one direction by a spring-loaded cover-plate 3 slidable within the cylinder 1. A return spring 8 is provided and acts between a collar 9 on a push-rod 6 and an end wall 5 of the cylinder. The return spring may be housed within the push-rod and a guide tube, the latter being slidably received within the piston and push-rod assembly (Fig. 2, not shown). The return spring may be omitted (Fig. 3, not shown).
Patent GB-1360039-A (GB)
Title: Image-receiving element suitable for use in a photographic silver salt diffusion-transfer process
IPC: G03C8/28
Filed: 1971-09-23
Abstract: 1360039 Photographic diffusion transfer FUJI PHOTO FILM CO Ltd 23 Sept 1971 [28 Sept 1970] 44517/71 Heading G2C An image-receiving element for the silver salt diffusion transfer process is produced by reacting at least one water-soluble salt of Zn, Cd, Pb, Fe, Ni, Co and/or Sn and at least one water-soluble sulphide and/or selenide in an aqueous dispersion of silicon dioxide of pH at least 8 to form a precipitate of the metal sulphide, selenide, polysulphide, polyselenide or sulphoselenide, and applying the resulting liquor to a support and drying.
Patent GB-1185713-A (GB)
Title: A Method of Synchronising Circular Knitting Machines
IPC: D04B15/38
Filed: 1967-03-23
Abstract: 1,185,713. Knitting-machines. FOUQUETWERK FRAUZ & PLANCK. 23 March, 1967 [25 March, 1966], No. 44709/69. Divided out of 1185712. Heading D1C. The subject matter of this specification is identical with that described in Specification 1185712 but the claims are concerned with ensuring uniform thread delivery to a multifeed circular machine or several single feed machines.
Patent GB-1407308-A (GB)
Title: Fluidized bed apparatus
IPC: C01F7/62
Filed: 1972-09-04
Abstract: 1407308 Aluminium chloride ALUMINUM CO OF AMERICA 4 Sept 1972 [14 Sept 1971 (2)] 44717/73 Divided out of 1402569 Heading C1A [Also in Division B1] Apparatus for desubliming gaseous AlCl 3  comprises a fluidized bed 17 of AlC 3  particles supported on an inclined gas distribution plate 25, finned cooling coils 26 within the bed, an inlet 30 for gaseous AlCl 3  which projects into the bed and which is preferably heated (by heating means 31) or insulated to prevent deposition of AlCl 3  thereon, an outlet for solid AlCl 3  at the bottom of the inclined plate, and a gas outlet, preferably connected to the fluidizing gas inlet for recycling effluent gas.
Patent GB-1141939-A (GB)
Title: Improvements in or relating to traffic monitoring apparatus
IPC: G01P11/02
Filed: 1967-10-02
Abstract: 1,141,939. Road traffic measurement. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 2 Oct., 1967 [22 Nov., 1966], No. 44749/67. Heading G4Q. The Specification describes a Doppler radar system for determining the average speed of a line of traffic wherein a Doppler radar illuminating the passing vehicles with a radar beam, produces a Doppler frequency oscillation 1, Fig. 1, for each vehicle as it passes through the beam proportional to its speed. A Schmitt trigger 2 converts each oscillation to a pulse. The Doppler oscillation is also fed to a threshold detector (not shown) which produces a " vehicle detected " pulse 3. Circuit 4 produces a pulse 5 synchronous with the leading edge of pulse 3 and the entry of the vehicle into the radar beam. Pulse 5 triggers generator 6 to produce a pulse of predetermined "measuring interval " width. This pulse is fed to AND gate 8 together with the Doppler pulse output of trigger 2 and an enabling signal from circuit 37, such that the Doppler pulses are fed to a binary counter 9 for the measuring interval. The count in counter 9 represents the speed of the vehicle. The next vehicle to pass through the radar beam produces a fresh train of Doppler pulses and the new pulse 5 causes counter 9 to read out into store 10 and to commence counting the new pulse train. The next Doppler pulse train causes the count in store 10 to be shifted into store 11 and that in counter 9, into store 10. Eventually counter 9 and the stores 10 to 18 contain counts representing the speeds of consecutive vehicles. If all switches 28 to 35 are open, then an average speed indication on meter 36 is obtained using two vehicle speed counts in counter 9 and store 10 whilst the indication can be based on further speeds, by closing appropriate ones of the switches. If a very high speed vehicle is detected counter 9 is filled, and the enabling pulse from means 37 is removed. No indication of its speed is thus made. In the combined arrangement of Fig. 2, the arrangement of Fig. 1 is enclosed within block 38. Means 39 counts the number of Doppler oscillations continuously and each time a predetermined number is exceeded, produces a " private car " pulse. The number of private car pulses, or " equivalent private car " pulses in the case where the vehicle is say two private car lengths, are counted by counter 41 and the count therein is read out to store 42 at predetermined intervals. The readout in store 42 and on display 43 indicates the traffic density or load. Indicators 36 and 43 may be combined as a cross-pointer indicator as shown in Fig. 3 (load and speed measuring clockwise), wherein if the pointers cross in the triangular area, a traffic overload condition is indicated. Such an indication can control traffic lights &c.
Patent GB-1076261-A (GB)
Title: Improvments in or relating to stereo broadcast receivers
IPC: H03J3/14
Filed: 1964-11-04
Abstract: 1,076,261. Stereophonic radio receivers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 4, 1964 [Nov. 7, 1963], No. 44949/64. Headings H3Q and H4L. In a radio receiver for stereophonic or monophonic signals which is provided with a tuning indicator tube, a voltage produced only when the pilot carrier of the stereophonic signal is present is applied to an electrode of the tuning indicator to indicate the reception of stereophonic signals. In one embodiment the pilot signal is arranged to produce a low-frequency signal, e.g. ¢ c/s., as by operating a relaxation oscillator, which is applied together with the normal signal dependent upon tuning to control the deflection of the luminous spot in the tuning indicator. The low-frequency generator may be switched out of circuit when fine tuning is required. In a modification the low-frequency signal modulates the brightness of the tube instead of controlling the deflection. In an alternative arrangement, the pilot signal either before or after frequency-doubling is used directly to modulate the deflection of the tuning indicator.
Patent GB-1477524-A (GB)
Title: Red light-emitting gallium phosphide device
IPC: H01L33/30
Filed: 1974-10-17
Abstract: 1477524 Semiconductor devices TOKYO SHIBAURA ELECTRIC CO Ltd 17 Oct 1974 [29 Jan 1974] 45009/74 Heading H1K [Also in Division C4] The external quantum efficiency of a PN junction red light emitting GaP device with a zinc doped P region is optimized by selecting the maximum oxygen concentration within the volume into which the depletion region extends under a reverse bias of 10 volts to lie between 10<SP>12</SP> and 5 x 10<SP>14</SP> atoms/cc. A preferred device consists of an N type substrate with a donor doping of 1 to 3 x 10<SP>17</SP>/cc, supporting an epitaxial N type layer with a doping of 2 - 5 x 10<SP>17</SP>/cc. Forming a junction with a P type layer with a zinc doping of 1 - 3 x 10<SP>17</SP>/cc., obtained by liquid phase epitaxial growth with a solution cooling rate of less than 3‹C/minute. The N type layer may be omitted and the quantum efficiency doubled by coating with epoxy resin.
Patent GB-1060059-A (GB)
Title: Alkylation of isoparaffins
Inventor: GOLDSBY ARTHUR RAYMOND
IPC: C07C2/62
Filed: 1965-10-27
Abstract: <FORM:1060059/C4-C5/1> In the alkylation (12) of an isoparaffin (10) with an olefin (11) in the presence of sulphuric acid which is continuously recycled (13), part of the acid, which contains polymeric organic contaminants, is bled off (25) and contacted (26) with an olefin (27) thereby forming a stream comprising dialkyl sulphate which is separated into an acid phase and an organic phase containing the sulphate and polymeric contaminants, the contaminants are removed (36) and the dialkyl sulphate recycled (37) to the alkylation. The olefin in line 27 is preferably propylene which may be mixed with other hydrocarbons including ethylene from which it is selectively separated.  The separation of the acid phase may be effected by mixing with water (32) followed by decantation and/or by cooling (51) to below 40 DEG  F. and decantation or by extraction with a hydrocarbon, e.g. isobutane. The acid phase is preferably heated to effect hydrolysis of alkyl acid sulphates to liberate alcohols and acid.  The organic phase is purified by contact with a solid adsorbent, e.g. alumina, silica gel, charcoal or a clay, or with sulphuric acid or by extraction with a hydrocarbon, e.g. propane or isobutane at below 40 DEG  F. or by steam or vacuum distillation.
Patent GB-1186053-A (GB)
Title: Tape Recording Apparatus
IPC: G11B15/68
Filed: 1967-03-03
Abstract: 1,186,053. Tape cartridge apparatus. POTTER INSTRUMENT CO. Inc. 3 March, 1967 [21 March, 1966], No. 45596/69. Divided out of 1,186,051. Heading GSR. The subject matter of this Specification is included in Specification 1,186,051 but the claims relate to the apparatus in which a tape guide member having edge guides to guide the tape past an associated head is moved between retracted and transducing positions to permit loading of a cartridge transversely relative to the head.