baber/WOPTO huggingface dataset:
Patent GB-615890-A (GB)
Title: Improvements in cross-linked crystalline films
IPC: C08J7/12
Filed: 1944-11-07
Abstract: <PICT:0615890/IV(a)/1> A light-polarizing film is obtained by stretching a film of an organic polymer and then treating the film in the stretched microcrystalline state with a halogen compound which intensifies the polarizing effect and with an alkyl silicate so as to render the extended or stretched film substantially non-retractive. The treatment of the stretched film may be carried out as a continuous process on a long length of film.  The treatment of polyvinyl acetal films is restricted to this continuous form of the process. The film may be treated simultaneously or separately with the halogen compound and the alkyl silicate.  For the stretching step, the film may be brought into a rubbery-elastic state by means of heat or swelling agents.  Heat may be supplied by infra-red rays. The organic polymer from which the film is obtained may be a polymethylene, polyvinylidene chloride, polyvinyl alcohol, polyvinyl ether, polyvinyl ester, polyamide, rubber or rubber homologue, amylose, keratin, or silk fibroin.  Iodine, bromine, chlorine, fluorine, hydrochloric acid, or hydrofluoric acid may be employed as the intensifying compound, and the alkyl silicate may be ethyl orthosilicate.  The treatment appears to form p  cross-linkages between the long chains of atoms in the molecules of the film substance.  The colour of the film produced may be neutral gray or blue-green according to the intensity of the chemical treatment.  As shown, the film 10, which has previously been submitted to a stretching operation, is unwound from a roll and passed through the treatment tanks 4, 5, 6, and drying chamber 19.  The film may be of polyvinyl butyral, and tank 4 may contain an aqueous solution of iodine, n-propyl alcohol, hydriodic acid and a sulphonated alcohol wetting agent.  The tank 5 may contain a solution of ethyl silicate in n-propyl alcohol.  Tank 6 contains a liquid such as isopropyl or butyl ether for removing excess of reagents.  The treatment may be effected at 30 DEG  C.  If desired, the tank 4 may contain a solution of iodine in n-propyl alcohol and ethyl silicate.  When the treatment is carried out at 20 DEG  C., the polarizing film obtained may be of a neutral gray colour, but when the temperature is 30-40 DEG  C., the film obtained may be of a blue-green tint.  For making light-polarizers, the films may be treated with plasticisers and laminated.  Specification 591,943 is referred to.  The Specification as open to inspection under Sect. 91, comprises also the treatment of films of other polymeric substances, e.g. phosphonitrilic chloride or fluoride, polymerized sulphur or selenium, sulphur trioxide polymers, and silicates.  It also comprises the use of other cross-linking agents or agents for permeation of the crystal lattice, e.g. oxygen, cyanogen, ethylene, acetylene, iron carbonyl, magnesium ethyl, sulphur chloride, carbon disulphide, sulphuric acid, zinc chloride, ammonia, amines, and caustic alkalis.  This subject-matter does not appear in the Specification as accepted.
Patent GB-203340-A (GB)
Title: Improved process for the production of white lead
IPC: C09C1/16
Filed: 1923-08-31
Abstract: 203,340. Rascher, M., and Plaueln, R. Sept. 2, 1922, [Convention date]. White lead is produced by precipitating basic lead acetate solution in the presence of metallic lead, carbon, and moist compressed air, by means of carbonic acid. The apparatus shown comprises a cylindrical chamber C having an internal concentric perforated cylinder B. In the space between the walls B and C is placed a mixture of lead and carbon. The solution of basic lead acetate is agitated by a stirrer D, which, however, is not essential. Compressed moist air is injected through a pipe E and carbonic acid through pipes F. The separated white lead is washed and dried at 90‹ or may be ground with oil while wet. The Specification as open to inspection under Sect. 91 (3) (a) showed a drawing differing somewhat from that contained in the Specification as accepted. (See Cancelled Figure.)
Patent GB-597804-A (GB)
Title: Improvements in or relating to fluorescent lighting devices
IPC: F21V7/04
Filed: 1945-08-27
Abstract: 597,804. Fluorescent tube lighting fittings. FROST, R. Aug. 27, 1945, No. 22024. [Classes 75 (ii) and 75 (iv)] Reflectors formed with central hubs 2 and silvered on both sides are mounted adjacent each end of fluorescent lamp tubes 3 to reflect light outwardly past the ends of the tubes and to prevent uneven lighting. The reflectors may be corrugated or formed as one or a series of annular troughs 4 opening towards the end of the tubes.
Patent GB-866430-A (GB)
Title: Preparation of polyethylene with aluminium titanium tetrachloride catalyst
IPC: C08F10/00
Filed: 1957-07-11
Abstract: Polyethylene is made by contacting ethylene, aluminium metal and titanium tetrachloride under polymerizing conditions in the presence or absence of a liquid which is inert to the reactants. The liquid may be a saturated aliphatic, or aromatic, or cycloaliphatic hydrocarbon or bromobenzene.  The polymerization is generally effected at a temperature around 100 DEG C.  A trace of hydrochloric acid may be present in the polymerization reaction. The reaction may be effected batwise or continuously.  The polymer may be purified by washing with dilute hydrochloric acid or dilute sodium hydroxide, and then dissoved in p-cymene or tetrahydronaphthalene.
Patent GB-983367-A (GB)
Title: A baby's diaper of cellulosic material and a method of preparing the same
IPC: A61F13/15
Filed: 1961-06-19
Abstract: At least the outer sheets of a baby's diaper made of cellulose wadding are impregnated with alkyl-dimethylbenzyl ammonium chloride, e.g. tetradecyl-dimethyl-benzyl ammonium chloride, or bromo-salicyl-bromoanilide.  These compounds are bactericides. The diaper, or the cellulose wadding before being dried and cut into diaper sheets, may be sprayed with aqueous solutions or suspensions of the above compounds.
Patent GB-387392-A (GB)
Title: Process and apparatus for breaking off lengths of wired glass
IPC: C03B33/07
Filed: 1931-08-06
Abstract: 387,392. Cutting wired glass. PILKINGTON BROS., Ltd., 631, Tower Building, Water Street, Liverpool, and SMITH, H., 7, Poplar Grove, St. Helens, Lancashire. Aug. 6, 1931, No. 22288. [Class. 56.] A method of breaking-off lengths of wired glass from a continuous strip consists in scoring and snapping the strip, and then applying in the plane of the strip a bending-moment about one end of the cut in order to tear the reinforcing wires. In the construction shown, the glass strip 1 travels over a bed of rollers 2 on to a cutting table 3. The glass is scored transversely by any suitable device, or by a tool guided by a square 4, and it is snapped along the scored line 5 by lifting it from the table by means of a roller 6 which can be raised by a lever 9. A block 10 is fixed to the table 3 in such a position that the glass strip travels in contact with it, and when the cut in the glass reaches the forward corner of the block, the wire netting is torn by pressure applied to the other edge of the strip at the point 12. According to the Provisional Specification, the glass may be scored and snapped by the method described in Specification 378,517.
Patent GB-321187-A (GB)
Title: Improvements in or relating to the manufacture of insulating oils
IPC: H01B3/22
Filed: 1928-08-01
Abstract: 321,187. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Aug. 1, 1928. Mineral oils.-Insulatiing oils are obtained by separating from a mixture of polyalkylated naphthalenes or oxygen-free derivatives thereof, a fraction which distils above about 160‹ C. under 12-25 mm. pressure; the fractions so obtained may be refined by customary processes. The oils so obtained may be used alone or mixed with other suitable oils such as mineral oils. For example, naphthalene may be treated under pressure with a cracking gas, containing ethylene and higher homologues, in the presence of aluminium chloride, and the fraction distilling at 160-200‹ C. at 12 mm. pressure collected and mixed with an equal amount of a mineral oil of specified properties. Specifications 260,604; 265,601, 273,665, and 295,990, [all in Class 2 (iii), Dyes &c.], are referred to.
Patent GB-437060-A (GB)
Title: Method of casting the metal parts of massage apparatus operated by water under pressure
IPC: B22D19/00
Filed: 1934-07-31
Abstract: 437,060. Casting composite articles; massage apparatus. HOCHMAYR, F., and SZABADI, E., (trading as APPARATEBAU HOCHMAYR, SZABADI, & CO.), 32, Mariahilferstrasse, Vienna. July 31, 1934, No. 22361. [Class 83 (i)] [See also Group VI] In massage apparatus, concentric passages for water are provided by using an inner tubular &c. member 2 as a core between the positions 3, 4 and as a supporter for core material 6 between the positions 4, 5. The removal of the core material 6 provides the return water passage. As shown the tube 2 terminates in a closed ring adapted to furnish fine holes 7 through which the water passes to the massage head.
Patent GB-333716-A (GB)
Title: Improvements in and connected with apparatus for containing, preserving and cutting cooked tongue, and equally applicable to other food-stuffs
IPC: A23B4/00
Filed: 1929-07-20
Abstract: 333,716. Gray, T. July 20, 1929. Addition to 306,780. Cutting slices in succession; meat safes.-The apparatus for containing, preserving and cutting cooked tongue and other food-stuffs described in the parent Specification is modified by providing the container A with brackets D, D<1> in which an external longitudinal screw E is journaled, the screw being connected to a pusher plate J by a bent arm H which works along a slot C in the container. A plate G arranged over the screw closes the slot C. A detachable handle F is provided on the screw E. Pins or skewers L are inserted through holes K at the open end of the container. When not. in use, a cover or greased paper may be placed over the open end. The plate J is detachably screwed on the arm H to facilitate cleaning.
Patent GB-201778-A (GB)
Title: Improvements in tyres for vehicles
IPC: B60C19/00
Filed: 1922-08-17
Abstract: 201,778. Donkin, J. Aug. 17, 1922. Tyre attachments to rims.-To provide lateral stability in a heavy-tread pneumatic tyre, such as that described in Specification 171,807, the side walls are braced by cleats 8 which are faced with rubber, leather, &c. 12, and bolted to the wheel 2. The spaced cleats may be formed integrally with a ring which may be arranged so as to bear against the side of the tyre or the rim.
Patent GB-357697-A (GB)
Title: Improvements in or relating to stoppers and the like for pickle and other preserving jars
IPC: B65D81/22
Filed: 1931-04-21
Abstract: 357,697. Stoppers for pickle jars. WATERHOUSE, W., 15, Russell Street, Sheffield. April 21, 1931, No. 22425/30. [Class 125 (iii).] A stopper of the type having an integral inward extension for holding pickles &c. below the preserving liquid, has an outer screwed portion 4 anc an inner hollow extensior 6 of greater axial length than the part 4 and connected thereto by an annular part 7. The wall of the part 6 is conical in shape and has a concave end 8.
Patent GB-595003-A (GB)
Title: Improvements in means for illuminating indicating instruments
IPC: G01R1/02
Filed: 1944-11-14
Abstract: 595,003. Indicating-apparatus. SIMPSON, R. Nov. 14, 1944, No. 22482. Convention date, Feb. 2. [Class 106 (iv)] An illuminating device for indicating apparatus is described embodied in an electrical instrument such as a milliameter and comprises an external source of light, means for conducting light from the source and for distributing light uniformly over the indicating means. A moving coil is mounted adjacent to a pair of opposed poles 32a of a permanent magnet 30 and carries a pointer 45 to indicate the units to be measured by co-operating with indicia on a dial plate 43, preferably opaque, the indication being viewed through a transparent member 22 which together with a cylindrical member 11 (which may be of insulation) and an insulating back wall 15 encloses the instrument. A lightconducting member 46 made preferably of a suitable transparent plastic, has a cylindrical stem 47 which passes through and is held by a cylindrical bore 49 in the rear wall 15 and which has a plane rear surface 48. At the front the stem portion is formed integrally with a disc portion 51 in contact with the rear surface of the dial 43 and a cylindrical portion 53 abutting the front cover 22, held in position by the friction fit of a bezel ring 26. On the rear side the disc portion and cylindrical portions are joined by curved portions and on the front side a symmetrical tapered depression 60 is formed at the centre. An external source of light illuminates the plane rear surface 48 of the member 47 which conducts light to the cylindrical portion 26 and thence illuminates the front of the dial 43 and the pointer 45.
Patent GB-536804-A (GB)
Title: Improved firing mechanism for mortars and small arms
IPC: F41A19/52
Filed: 1939-08-03
Abstract: 536,804. Guns. HARRIS C. W., and WOODHOUSE & MITCHELL, Ltd. Aug. 3, 1939, No. 22497. [Classes 92 (ii) and 119] Slip-lock trigger mechanism for mortars and small arms has a hair-pin shaped main spring F anchored at G, one limb bearing against a projection H on the hammer A, the other limb, when the trigger is released in the safety position shown, engaging a cam or incline K on the hammer to move the hammer clear of the firing pin D which then retracts. To cock and release the hammer, the pivoted sear O is turned anticlockwise to engage and slip past a spring- pressed pawl R on the hammer, and a deflector M then moves the upper limb of the main spring clear of the incline K. After the hammer has struck the firing pin D and the sear has returned, the upper limb of the spring re-engages the incline K to retract the hammer and allow retraction of the pin D.
Patent GB-760782-A (GB)
Title: Process for the production of foamed products based on polyisocyanates
IPC: C08G18/18
Filed: 1954-08-03
Abstract: Foamed products are obtained by reacting polyesters containing both hydroxyl and carboxyl groups with polyisocyanates in the presence of a neutral or acid salt derived from an aliphatic or aromatic dicarboxylic acid and a tertiary amine.  Carbon dioxide is liberated by the reaction of the polyisocyanate and carboxylic acid groups.  In examples: (1) a polyester from adipic acid, phthalic acid and hexanetriol or trimethylol propane with acid number 37 and an hydroxyl content of 8-9 per cent is reacted with an equivalent amount of tolylene diisocyanate in the presence of 10 per cent by weight of the polyester of the salt from 1 mol. adipic acid and 1 mol. hexahydrodimethyl aniline to give a hard foamed product of density between 50 and 60 kg./m3.  (2) 3-5 per cent of the product from 3 mols. oxalic acid and 2 mols. of the esteramine of adipic acid and diethyl ethanolamine are added to a polyester from adipic acid ethylene glycol and diethylene glycol chain-lengthened with tolylene diisocyanate.  An adduct of a polyisocyanate and phenol is added and the mixture heated to produce a foamed product.  (3) A polyester from adipic acid hexane triol or trimethylol propane and 1,3-butylene glycol is mixed with 5-10 per cent of the salt of adipic acid and the ester amine of adipic acid and dimethyl ethanolamine.  The product is reacted with tolylene diisocyanate to give a hard foam of density between 100 and 40 kg./m3.
Patent GB-914129-A (GB)
Title: Improved baby's napkin
IPC: A61F13/15
Filed: 1960-06-28
Abstract: 914,129. Babies' napkins. GAILEY, R. P., and GAILEY, E. E. Sept. 26, 1961 [June 28, 1960], No. 22617/60. Class 141. In a T-shaped napkin comprising a main strip 10 and transverse wings 11 of towelling &c., tapes 12 are attached to the ends of the wings and one or more loops 13 are provided on the outer surface of the strip 10, so that, after the end of the strip 10 has been folded over, the napkin may be secured in position on a baby by passing the tapes around the body and through a selected loop and tying the ends together. An elasticized tape 14 is provided at the winged end of the napkin. '
Patent GB-1245572-A (GB)
Title: Improvements in, or relating to, hinges
Inventor: DOUGLAS JACK ENERST
IPC: E05D7/086
Filed: 1967-05-16
Abstract: 1,245,572. Hinges. ARTHUR SHAW MFG. Ltd. 16 Aug., 1968 [16 May, 1967], No. 22632/ 67. Heading E2F. A hinge, particularly for windows, allowing separation of the hinged members without dismantling the hinge, comprises two relatively rotatable components 1, 2 one of which includes a housing 4 wherein a boss 17 is received. The boss 17 is separable from component 2 and rotation therebetween is prevented by interengagement of a slot 7 and key 11, the latter being provided with a pair of ears 12 which engage one of two pockets 8 formed at opposite ends of the slot 7. The. boss is formed with longitudinal ribs 18 and is surrounded by a split sleeve 20, 21 having longitudinal grooves 22 each engaging a corresponding one of the ribs 18 to prevent relative rotation of the boss and sleeve. A bolt 24 extends coaxially through the housing 4 and boss 17 and is received into a tapped: hole 9 in the floor of the slot 7. The head of the bolt 24 is in abutment with a spring washer 25 which abuts the adjacent edge of the split sleeve so that screwing the bolt into the tapped hole 9 forces the sleeve 20, 21 into frictional contact with the internal surface of the housing 4 and thus increases the frictional resistance to relative rotation of the two components 1, 2. Plate 15, ring 19 and the sleeve 20, 21 are preferably made from nylon or other non-metallic material.
Patent GB-716501-A (GB)
Title: Improvements in and relating to cookers for boiling sugar substances used in the production of confectionery
IPC: C13B25/00
Filed: 1951-09-28
Abstract: In the manufacture of confectionery, sugar solution is boiled in the form of a thin film 19 distributed by means of rotating blades 4 against the inner wall of a heated container 2, and is then discharged from the bottom of the container into a vacuum chamber 8 through a valve 7, while the vapour evolved from the solution is withdrawn from the container through conduit 2a.  The outlet valve 7 is opened and closed, according to the degree of vacuum in the chamber 8, by means of diaphragm 11, bell-cracks 9, 12 and weight 13. The cooked sugar solution on discharge into chamber 8 drops into one or other of receiving pans 14, 15, which are alternately brought into position beneath the chamber by means of rotatable frame 16 which is pivotally mounted on column 17, The solution to be boiled is pumped through pipe 1 into the top of container 2, where it is evenly distributed around <PICT:0716501/III/1> the sides of the container by flange 3a.  The spreader blades 4 are carried on shaft 3 which is driven by belt pulley 5.  The container 2 is jacketed, and is heated by steam in known manner. Chamber 8 is exhausted through port 20. While the vacuum in the chamber is low, valve 7 remains closed.  As the vacuum increases, diaphragm 11 will be moved to the left and cause valve 7 to open. By adjusting the position of weight 13 along the arm of bell-crank 12, the required degree of vacuum under which the device is to operate can be adjusted.
Patent GB-1470074-A (GB)
Title: Radiant energy emitting analytical reagent
IPC: G01N33/533
Filed: 1974-05-22
Abstract: 1470074 Immunological reagent BLOCK ENG Inc 22 May 1974 [30 July 1973] 22791/74 Heading GIB [Also in Division C3] A radiant energy tagging material which may be used to tag antibody protein molecules by reaction with the reactive end groups is obtained from polymeric backbone molecules with reactive end groups and repeating units having reactive sites of different chemical reactivity, by bonding radicals derived from radiant energy emitting molecules, e.g. fluorescent dyes, to the polymeric backbone molecules by reaction with the reactive sites. The tagged antibody protein material may be used in immunochemistry to detect and classify viruses by antibody-antigen reaction and measurement of radiant energy emission, e.g. fluorescence. Specific polymeric backbone material described is a polyethylene imine with an amine group at one end and a methyl group at the other; the amine end group is blocked by reaction with benzaldehyde and the polymer reacted first with lithium and then with a fluorochrome dye to bind radicals derived from the dye to nitrogen atoms in the repeating units of the polymer by a demetallation reaction; the amine end group is then freed by hydrolysis and converted to a thiocyanate group, by reaction with thiophosgene, which in turn can react to bind the polymer molecule to an antibody protein molecule. Other polymeric starting materials mentioned are polyethylene oxide, polyamides and polymeric carboxylic and amino acids.
Patent GB-243676-A (GB)
Title: Improvements in or relating to ball thrust bearings
IPC: F16C19/10
Filed: 1925-09-12
Abstract: 243,676. Compagnie d'Applications MÚcaniques. Nov. 26, 1924, [Convention date]. Ball bearings.-In a ball thrust bearing the grooves 5 for the balls 3 in the racerings 1, 2 are identical and surround the balls externally to support them against the action of centrifugal force, and a clear annular space E is left between the races at the inner side of the ball ring to accommodate a solid ball spacing ring 4. The race-ring 2 may have a spherical seating in its supporting ring 7.
Patent GB-1013272-A (GB)
Title: Circuit control means
IPC: H03K17/725
Filed: 1962-06-14
Abstract: 1,013,272. Automatic voltage control. WESTERN ELECTRIC CO. Inc. June 14, 1962 [Dec. 22, 1961], No. 22842/62. Heading G3R. [Also in Division H3] The invention relates to a magnitude-controlled silicon rectifier replacement unit for a thyratron series D.C. voltage stabilizer, which may act as a rectifier or be fed with rectified D.C. Fig. 3 (not shown), and may incorporate a current limiting arrangement. The unit 112 comprises a silicon-controlledrectifier 101 controlled by a transistor 102 having its emitter voltage clamped by a Zener diode 13 and its base circuit fed with the sum of the voltage across Zener diode 106, and a portion of the load voltage determined by potentiometer 221, 207. Current limiting:- a drooping characteristic is provided by ballast lamp 224 in series with the load which blocks diode 222 when the lamp voltage exceeds the drop across resistor 223, so that the stabilizer acts to keep a constant voltage across the lamp and the load whereby the non- linear resistance characteristic of the lamp tends to limit the load current to an approximately constant value. Modifications (i) Full-wave rectification can be provided either by connecting another unit 112 to points A, B, C, (blocking diode 220 then serves to isolate the base emitter circuits of the two transistors 102), or alternatively Fig. 4 (not shown) by controlling two silicon rectifiers from a single transistor having its emitter circuit connected to both "phases" through blocking diodes 445, 446. (ii) a diode 225 may be connected in series with the controlled rectifier to share the peak-inverse-voltage (iii) a "flyback" diode 332 Fig. 3, (not shown) across the output of unit 112 provides a path through the load for inductive energy in filter-choke 111 when the silicone rectifier is "turned off". Specification 1,013,273 is referred to.
Patent GB-658327-A (GB)
Title: Hair nets
IPC: A45D8/40
Filed: 1949-09-05
Abstract: 658,327. Hair nets. HERSCHENSOHN, A. M. Sept. 5, 1949, No. 22924. Convention date, Feb. 18. [Class 131] A hair net 15 is provided with a member 16 having a small aperture through which a bunched portion of the net, and preferably a portion of the rim thereof, may be threaded and retained by friction, in any adjusted position, so that the size of the remaining part of the net suits the head-size and coiffeur of the wearer. The rim perimeter and other perimetral dimensions of the net are determined by adjusting the knot 17 and net strands. 161, respectively, relatively to the member 16. The knot and member are tucked inside the hair within the net and secured by a pin.