baber/WOPTO huggingface dataset:
Patent GB-1310132-A (GB)
Title: Hologram identification system
IPC: G06V10/88
Filed: 1970-07-03
Abstract: 1310132 Locks THOMSON CSF 3 July 1970 [9 July 1969] 32482/70 Heading E2A [Also in Divisions B6 G4 and G1] An identification system, as described, a lock, makes use of a key comprising a three-dimensional hologram which produces spaced images of a luminous source whose positions correspond to a preset recognition code. As shown, the correctly coded hologram key 1 inserted in key-way 11, is illuminated by sources 6 and 7 and produces virtual images of these sources at 8, 9 and 13, the locations of photo-sensitive detectors, connected to detectors 20, 21, 22 whose outputs feed a logic circuit 23 whose output feeds a lock-release system 24 e.g. a solenoid-operated bolt. The logic circuit comprises a pair of AND-gates 230, 231, connected through an inverter 232 to an alarm circuit 25. In operation, insertion of the key, closes a switch 12 to energise the lamps 6 and 7 from evaluating circuits 18, 19 which assesses the degree of energisation of the lamps and issue control signals which proportionately control the threshold circuits 20, 21, 22. If the wrong key is used, the detectors 8, 9 and 13 generate low signals which are below the threshold of the circuits 20, 21, 22 and the lock is not opened. Moreover, the inverter 232 bends an alarm signal to 25. Generalised illumination of the photo-sensitive cells for picking the lock, is picked up by a further cell 14 which also activates the alarm 25. In a modification, (Fig. 4, not shown) an additional detector (109) is provided to bias the threshold circuits, and allow a broken key to operate the lock. In a further modification, (Fig. 5, not shown) the hologram is operated by reflection and not transmission, and uses several units operating on different wavelengths. Two keys may be used in series (Fig. 6, not shown).
Patent GB-1085965-A (GB)
Title: Insect- and mite-repellent compositions
Inventor: MULLER GERHARD
IPC: A01N/
Filed: 1966-07-20
Abstract: Compounds of the formula <FORM:1085965/C2/1> wherein R is H, Cl, or Me, R1 is H or an aliphatic hydrocarbon radical, R11 is H, an aliphatic hydrocarbon radical or an alkoxy radical, R111 is an aliphatic hydrocarbon radical, m is 1, 2, or 3, n is 0, 1 or 2, and p is 1 or 2, are produced either by reacting the appropriate bicyclic hydrocarbon isocyanates, carbamic acid chlorides, or carbamic acid esters with the appropriate amine or by reacting the appropriate bicyclic hydrocarbon amine with the appropriate carbamic acid chloride or isocyanate.  An example describes the preparation of N-isobornyl-N1, N1-dimethyl urea from ethyl N-isobornyl carbamate and dimethylamine, the carbamate having been prepared by the reaction of camphene with urethane and boron trifluoride etherate in benzene.ALSO:Insect and mite repellent compositions contain as active ingredient at least one urea derivative of the formula <FORM:1085965/A5-A6/1> wherein R is H, Cl, or Me, R\sv is H or an aliphatic hydrocarbon radical, R\yF is H, an aliphtic hydrocarbon radical or an alkoxy radical, R\yG is an aliphatic hydrocarbon radical, m is 1, 2, or 3, n is 0, 1, or 2 and p is 1 or 2 in admixture with a solid or liquid diluent or carrier optionally containing a surface-active agent.  The compositions, or the active compounds alone, may be applied to human or animal skin, or clothes.
Patent GB-728699-A (GB)
Title: Improvements in the production of tertiary amines
IPC: C07D263/22
Filed: 1952-12-23
Abstract: A process for the production of tertiary amines consists in reacting (a) cyclic urethanes with (b) formaldehyde or substances splitting off formaldehyde under the conditions of the reaction, and (c) compounds which contain at least one secondary basic-reacting amino group.  As cyclic urethanes there are mentioned oxazolidone-(2), oxazinidone-(2) and the seven-membered cyclic urethane of the formula <FORM:0728699/IV (b)/1> and cyclic urethanes having rings of other sizes.  Compounds mentioned having a secondary amino group are dimethylamine, diethylamine, methylethylamine, methylpropylamine, dibutylamine, methyldecylamine, pyrrolidine, piperidine, piperazine, morpholine, diethanolamine and N-methylaniline.  The reaction may be carried out by mixing all the reactants (usually in about equimolecular proportions) or by first reacting the formaldehyde with the cyclic urethane or with the secondary amine and then introducing the third reactant.  The products may be quaternated, e.g. with benzyl chloride.  In example (1) oxazolidone-(2), formaldehyde solution and dibutylamine are reacted to give dibutyl-oxazolidonylmethyl-amine.  Similarly produced are (2) dimethyl-oxazolidonylmethylamine (which is then quaternated with benzyl chloride), (4) oxazolidonyl-(N)-pyrrolidinyl-(N)-methane, and (5) dimethylamino-oxazinidonyl-methane.  In example (3) oxazolidone-(2) and formaldehyde are reacted to give the methylol derivative which is then reacted with diethylamine to give diethyl-oxazolidonylmethylamine.
Patent GB-1438876-A (GB)
Title: Multi-spindle automatic lathe
IPC: B23B3/30
Filed: 1974-07-24
Abstract: 1438876 Multi-spindle lathes F PETZOLDT 24 July 1974 [27 July 1973] 32608/74 Heading B3T In a multi spindle automatic lathe having a plurality of work spindles 1-4 mounted on a spindle carrier 9 which is indexable about an axis 5, each spindle is equally angularly spaced about the axis and the axis of each spindle is inclined at an acute angle to the axis 5. In the embodiment described, the axis of the carrier and the axis of index are coincident and orientated vertically the carrier being mounted on a beam like member 8 forming part of the lathe frame and which is carried on two colums 7 extending from the bed 6. The drive to the spindles may be from a common motor (not shown) by way of gears and a clutch 38 which connects the stub shafts 32 in the carrier with the drive shaft 41 in the beam 8. Alternatively, the spindles may be independently driven by motors 15 by way of clutch means which permits the spindle carrier to be indexed when the motor and clutch is disengaged. Alternatively, the motors, Figs. 6 and 7 (not shown), may be connected to the spindles and carried on the spindle carrier to be indexed therewith. In the latter cases the drive between the motor and spindle is by way of belt, chain or gears and an infinitely variable drive or reversing of the direction of rotation may be achieved. The indexing of the spindle carrier is effected by a Geneva mechanism 21, 22 and the carrier is clamped in each of its indexed positions by way of hydraulically actuated means 35. To engage and disengage their clutches the independently driven motors are axially displaced on slide means on the machine frame. In the case of a common motor drive the clutches are provided between the stub shafts 32 in the carrier 9 and the drive shafts 41 in the beam 8, the drive shafts 41 being axially displaceable to engage and disengage the clutch 38 with the stub shafts 32 which subsequently drive the spindles by way of bevel gears 30, 31. Cutting tools and slides 13, 14 are mounted on the machine frame for operation on workpieces carried by the spindles.
Patent GB-210916-A (GB)
Title: Improvements in and relating to pneumatic tyres
IPC: B60C15/02
Filed: 1922-11-29
Abstract: 210,916. Holle, A. A. Nov. 29, 1922. Jackets and covers; tread bands and projections; tyre attachments to rims.-The cover 1, Fig. 1, of a tyre has edges shaped to form flat bottomed feet 2, and is reinforced with layers of cord 3, the loops of the cord engaging spaced projections 4 on rings 5 at the foot of the cover. The flat rim 6 has a fixed flange 7 and a detachable flange 8, the cover being secured to the wheel by a series of transverse bolts 9 which pass through both rim flanges 7, 8 and the feet 2, and engage the rings 5. The air tube 11 has a radial flange adapted to lie between the inner faces of the feet 2, holes 13 in the flange being formed for passage of the bolts 9. The rings 5 may be formed of strips or of wire, and are spaced by washers 15, being coupled together by the bolts 9 or bv auxiliary bolts. An inextensible canvas band' 18, Fig. 8, is placed between the rubber tread 17 and the cord layers 3, and is secured to both the fabric and the rubber, projections 19 on the band 18 being formed to correspond with ridges on the tread. These projections may be formed by folding the band on itself and securing the folds. Straps connect the bands 18 with the feet 2 of the cover.
Patent GB-300213-A (GB)
Title: Improvements in or relating to grinding or crushing mills
IPC: B02C13/13
Filed: 1928-11-08
Abstract: 300,213. Mag Maschinenfabrik Akt.- Ges. Nov. 8, 1927, [Convention date]. Fixed sieves.-The material ground by a centrifugal beater mill 1 is driven by means of the current of air generated by vanes on the rotary member of the mill on to one or more sifting surfaces 12. The beater dic 2 is provided with fan blades 4 which drive the ground material through a grating 13 on to trays 14 in a dusttight casing 10. An adjoining casing 11 is separated from the casing 10 by a sifting fabric 12, tapped at intervals by a member 15 through a cam 16. A tubular member 17 extends from the casing 11 and is surounded by sifting fabric 18. The tubular member 17 is suspended by a spring 20 and is provided with a bell-mouth 17<1> and baffles 19. The lower portion of the sifting fabric 18 is connected to a. tube 18<1> from which a branch pipe 21 is connected to a pipe 22 by a tubular sleeve 23. The pipe 22 is connected to the feed outlet from the hopper 8 and the axis of the tubular sleeve 23 is coincident with a hinge pin 7 on which the end 6 of the mill is pivoted so that the interior of the mill may be examined without dismantling any parts thereof. The coarse material which falls in the container 10 may be returned to the mill by a bucket conveyer and the dust which passes with the finely ground material through the sifting fabric 12, into the container 11, ascends the tube 17 wherepart is thrown back into the container by the baffles 19 and the remainder is arrested by the sifting fabric 18. The latter accumulates on the cone-shaped portion 17<1> and, when its weight is sufficient to overcome the tension of the spring 20, the tube 17 descends to release, the accumulated material which then falls into the container 11. When the fabric 18 becomes clogged with dust, the latter passes through the pipes 21, 22 and is returned to the mill through the feed inlet from the hopper.
Patent GB-810430-A (GB)
Title: Improvements in electrical or telephone jack key or lamp units and assemblies thereof
Inventor: SAMMONS RONALD
IPC: H01R24/58
Filed: 1957-10-21
Abstract: 810,430. Keyboard switches; switchboards. STANDARD TELEPHONES & CABLES Ltd. Oct. 21, 1957, No. 32767/57. Addition to 810,074. Class 38 (5). [Also in Group XXXIX] A jack, key or lamp strip is built up of individual units 22 bolted and keyed together between end pieces 25 and 26. The units are keyed by means of frusto-conical projections 18, 19, which mate with corresponding recesses such as 20, 21 provided on each unit.
Patent GB-294826-A (GB)
Title: Improvements in gauge glass fittings
IPC: F22B37/78
Filed: 1927-12-05
Abstract: 294,826. Walker, J. J, and Walker, W. Dec. 5, 1927. Gauge glasses.-A valve 7 closing automatically on breakage of a gauge glass G is arranged in a V-shaped portion 5 of the passage connecting the gauge glass to the boiler. The passage 5 is provided with a seating 6 for the valve, and with a plug 9 having a pin 7 against which the valve normally rests. A bye-pass 16 having a valve 12 is provided to equalize tha pressure on the two sides of the valve in the event of the valve sticking on its seating.
Patent GB-761738-A (GB)
Title: Improvements in or relating to apparatus for reproducing sound by means of dispersedloudspeakers
IPC: G10K15/10
Filed: 1954-11-12
Abstract: 761,738. Reverberation systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 12, 1954 [Nov. 17, 1953], No. 32857/54. Class 40 (4). In a system comprising a main loud-speaker L1 and a number of subsidiary speakers L2 ... L5 distributed about a space H1, the sounds reproduced by the subsidiary loudspeakers are delayed and changed in intensity to such an extent as to give the impression that reverberation is taking place in a space H2 larger than the space H1 determined by the loud-speakers. Thus for an observer at A if the time delay for the loud-speaker L2 is that corresponding to the length of path l3 the observer will receive the impression of being in a hall of size H2. The delay is obtained by recording on a moving magnetic tape and reproducing from a staggered pick-up. The size of the " virtual hall H2 can then be varied either by changing the distance between recorder and reproducer, or by changing the speed of the tape. The pick-ups may be backcoupled to the reproducer to simulate multiple reflections, acoustically harder walls being simulated by stronger back-coupling. Specifications 408,001, 408,222 and 411,144, [all in Group XXXVIII], are referred to.
Patent GB-618627-A (GB)
Title: Improvements in and relating to carrier and like bags
IPC: A45C3/04
Filed: 1946-11-06
Abstract: 618,627. Ring handles. CHARD, W. E. Nov. 6, 1946, No. 32941. [Class 133] A carrier bag comprises a tubular body 1 closed at the lower end and a pair of ring handles 3 pivoted by pins having heads 5a, segmental inserts 2 connecting the rings 3 and the adjacent edges 1c of the bag. The ring handles 3 are pivoted on a common axis and one ring lies inside the other at one pivot and outside at the other pivot. Wires 4 are sewn to the inserts 2 and are secured in grooves 3a in the lower half of each ring 3 and holes 3c, and bent over as at 4a.
Patent GB-1221488-A (GB)
Title: Yarn production process
Inventor: CHANGANI PUSHPKUMAR DEWANMAL
IPC: D01D5/247
Filed: 1968-07-11
Abstract: 1,221,488. Fibrillating foamed polyethylene. MONSANTO CHEMICALS Ltd. 23 June, 1969 [11 July, 1968], No. 33033/68. Heading B5B. [Also in Division C3] A high density polyethylene (e.g. density # 0À935 g./c.c.) containing 10-25% by wt. of a foaming agent is extruded at 125-160‹C. into a foamed strand or ribbon which is drawn longitudinally and which may optionally be subjected to forces which rupture the cell-walls leaving a three-dimensional network of interconnected fibres. A nucleating agent may be present. Draw ratios of 2 : 1 to 20 : 1 at a temperature of up to 130‹ C. are specified. Fibrillation may be at 0-30‹ C. using transverse forces, e.g. a turbulent air-stream.
Patent GB-506645-A (GB)
Title: Improvements in or relating to the mounting of aircraft engines and propellers
IPC: B64D27/06
Filed: 1937-11-30
Abstract: 506,645. Propelling aircraft. ELLIOTT, A. C. Nov. 30, 1937, No. 33087. [Class 4] An aircraft, engine, mounted in the aircraft structure by means of trunnion pins at each end coaxial or parallel with the crankshaft, drives a propeller and shaft/rigidly mounted in the structure independently of' the engine, through a universally-jointed transmission, resilient means being provided for resisting torque reaction of the engine. The trunnion pins may,be resiliently mounted and frictional or hydraulic means provided to damp engine vibrations. As shown, an engine 5 is mounted in a wing 21 by means of trunnions 7<1> coaxial with the crankshaft and carried in rubber bearings in the spars 7, S. Torque arms 10 are provided connected at 13, 14 to subsidiary fore-and-aft spars 11, 12 by rubber or springs. The arms may be resiliently connected to the engine. The airscrew 15 is mounted in bearings carried by a housing 16 supported by an outrigger 17 from the spar 7 and is connected to the crankshaft by a shaft 18 and flexible or universal joints 19, 20.. A reduction gear may be interposed between the airscrew and crankshafts. Specification 498,224 is referred to.
Patent GB-428547-A (GB)
Title: Improvements relating to warning lights for use on electrically propelled road vehicles
IPC: B60L3/00
Filed: 1933-11-27
Abstract: 428,547. Road-traffic signals on vehicles. SUNBEAM MOTOR CAR CO., Ltd., and MATTHEWS, G., Upper Villiers Street, Wolverhampton. Nov. 27, 1933, No. 33118. Drawings to Specification. [Class 118 (ii)] A " stop " light, on a tram or similar vehicle using regenerative braking, is illuminated when current reversal takes place as the result of the braking. The light can also be lit by a switch operated from the brake pedal. Several methods of controlling the lamp from the regenerative circuit are described in the Specification. Specification 259,144, [Class 38 (iii)], is referred to.
Patent GB-852664-A (GB)
Title: Production of methacrylic acid and esters thereof
IPC: C07C67/327
Filed: 1958-10-17
Abstract: Methacrylic acid and/or an ester thereof are obtained by contacting at a temperature above 150 DEG C., e.g. between 150 and 500 DEG C., the vapours of alpha-hydroxyisobutyric acid or an ester thereof with a catalyst comprising an alkali metal phosphate and a support selected from graphite, silica gel, calcium sulphate or magnesium sulphate.  In a modification an alcohol or phenol is fed to the reactor along with the material to be dehydrated.  A vehicle or solvent (e.g. acetone or acetic acid) for the material to be dehydrated, may also be used to facilitate the introduction and vaporization of the material to be dehydrated and if desired the ester feed may be diluted with water or nitrogen.  Specified esters which may be used as starting materials are methyl, ethyl, propyl, isopropyl, butyl, isobutyl, amyl, isoamyl, decyl, dodecyl, tetradecyl, cetyl, phenyl, cresyl, tolyl, benzyl and resorcinyl alpha hydroxyisobutyric acid esters.  The phosphate is preferably an alkali metal diacid phosphate, e.g. monosodium phosphate and phosphoric acid may also be present in the catalyst.  The dehydration of alpha-hydroxyisobutyric acid in the presence of methanol can be made to give only methyl methacrylate instead of a mixture of methacrylic acid and methyl methacrylate by introducing an equilibrium concentration of methacrylic acid along with the hydroxy acid and methanol.  Examples are given.  A comparative example is also given in which silica gel and calcium sulphate are used alone, as catalyst for the dehydration of the methyl ester, only low yields of the unsaturated ester product being obtained in this case.ALSO:Alkali metal phosphate-containing catalysts used to effect dehydration of alphahydroxyisobutyric acid and/or an ester thereof to form methacrylic acid or ester thereof (see Group IV(b)) comprise an alkali metal phosphate and a support of graphite, silica gel, calcium sulphate or magnesium sulphate. Specified methods of preparation are as follows: (1) by heating a solution of NaH2PO4.H2O to about 60 DEG C., adding silica gel, heating the mixture to remove water and then further drying at 125 DEG C. for 24 hours, (2) by adding calcium sulphate and phosphoric acid to an aqueous solution of NaH2PO4.H2O, heating the mixture until dry and then further drying in a vacuum oven for 24 hours at 125 DEG C., (3) by mixing NaH2PO4.H2O and graphite, pressing into pellets, drying the pellets at 120 DEG C. for 16 hours and then regrinding the pellets, screening and repelleting, and (4) by boiling a solution of NaH2PO4.H2O to which phosphoric acid has been added, vacuum drying the residue and then breaking up the residue and mixing and pelleting it with graphite.
Patent GB-752545-A (GB)
Title: Improvements in or relating to automatic emergency-power connecting devices for burglar alarm installations
IPC: G08B13/22
Filed: 1954-11-16
Abstract: 752,545. Burglar alarm systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. Nov. 16, 1954 [Nov. 16, 1953], No. 33203/54. Class 118(1) A burglar alarm system having vibrator switches 7 and a control relay 4 is normally energized from an A.C. supply through a rectifier 2 and a switch having contacts 10, 11. If the A.C. supply should fail a line voltage relay 5 is actuated to cut in a, battery 12 by changing the switch from contact 10 to contact 11. The contact 11 however is made before 10 is broken, thus shunting the relay 4 through rectifier 2 during the time of release of relay 5 so that the action of relay 4 is so slowed down that its release is prevented. In Fig. 2 (not shown) a two wire alarm circuit is provided so that alarm may be given on short circuit. A resistance 6 inversely variable to the voltage applied accross it is provided to speed up the action of relay 5, and the relay 4 has a re-set button 9.
Patent GB-951873-A (GB)
Title: Improvements in or relating to ball joints
IPC: F16C11/06
Filed: 1962-08-30
Abstract: 951,873. Ball joints. H. HURLIMANN. Aug. 30, 1962 [Aug. 31, 1961], No. 33246/62. Heading E2F. A ball joint 5 comprises a base member 1 having a part-spherical clamping shell 8 and a similar convex support 12, a closure members 10 with complementary shells 9 and 11 which fit over the ball 6 and the support 12 and are held in place by an adjustable clamping device 15 and by a leaf spring 13. The device 15 consists of a spring- loaded screw bolt 18 with a U-shapedyoke 16 attached to its head 17, and protruding through a slot 22 in member 1, the device being freed by rotating the camming part 28 about pin 27 to a clock-wise sense; the pressure of the member 10 is then set by turning nut 20. The ball 6 may be attached to a bolt 7 which moves to and fro as the rocker arm 3, pivoted to member 1 at 2, oscillates normally to the drawing.
Patent GB-608635-A (GB)
Title: Improvements relating to the polymerisation of vinyl compounds
IPC: C08F4/00
Filed: 1946-04-11
Abstract: Readily polymerizable vinyl compounds such as styrene and its homologues, vinyl acetate and methyl methacrylate, are polymerized in aqueous emulsion by first preparing an aqueous solution of a water soluble sulphite oxidisable by free oxygen, or of free sulphur dioxide, with a proportion of said sulphite or sulphur dioxide present in oxidised condition, dispersing the vinyl compound in this solution and subjecting the dispersion to polymerizing conditions, the last two steps being performed in the absence of a measurable quantity of free oxygen and otherwise under conditions which are nonoxidising with respect to the sulphite or sulphur dioxide.  The pre-oxidation may be carried out by free oxygen or by a metallic salt such as a cupric salt. If the reaction ceases the sulphite or sulphur dioxide may be freshly oxidised allowing a pause for all the oxygen to be absorbed and then adding more vinyl compound.  Hydrogen or nitrogen may be used for the oxygen-free gases over the dispersion, the reaction usually proceeding at 90 DEG  C. with agitation. Suitable sulphites are anhydrous sulphites of sodium, potassium and ammonium, sodium bisulphite and hyposulphite and potassium metabisulphite.  Preoxidation of the sulphur dioxide or sulphite may be catalysed by a polyvalent metal compound such as cupric, chromic, ferric, cobaltic or manganic salts present either as impurities or by addition.  The styrene used may be distilled from over ferrous sulphate to remove impurities.  Stearic acid, oleyl sulphonic acid and caustic soda are optional ingredients in the emulsion.  Films may be made from the polymers.  Viscosities in benzene are stated. Specifications 582,134, 582,327 and 587,455 are referred to.
Patent GB-1447033-A (GB)
Title: Combined boat and container
IPC: B63B7/02
Filed: 1972-07-18
Abstract: 1447033 Folding boat MARINE PLUS Ltd and F J SMITH 18 Oct 1973 [18 July 1972] 33592/72 Headings B7A and B7S Two open topped shells 10, 11 each have a generally rectangular peripheral rim and are secured together end to end by bolts 15 to form a boat. Straps 31 and slots 32 secure the two shells together rim to rim to form a closed container. In the embodiment shown ledges 24 support loose thwarts 25.