baber/WOPTO huggingface dataset:
Patent GB-100411-A (GB)
Title: Improvements in Apparatus for Reading by Means of the Ear.
Inventor: BROWN FAY CLUFF
IPC: G09B21/00
Filed: 1916-05-04
Abstract: 100,411. Brown, F. C. May 6, 1915, [Convention date]. Blind persons, communicating with.-Relates to apparatus enabling a blind person to read by means of the ear, based upon the fact that light causes a reduction in the electric resistance of selenium. A number of selenium crystals 1 are employed, each in a circuit including a resistance 8, interrupter 18, and telephone 21, the telephone in each circuit producing a different note ; the resistances 8 are adjusted so that normally, with the crystals in darkness or a dim light, no current flows through the telephones. A lens 5 is adapted to focus an illuminated image of an object upon the crystals, so that if a series of, say, white letters upon a dark background are moved from right to left in front of the lens and crystals, a corresponding series of characteristic sounds will be produced in the telephones. As shown in Fig. 2, several telephone receivers may be housed in a single ear-piece 23. To render the apparatus more sensitive, selenium crystals of large size placed under pressure are employed, each crystal being placed between contacts 2, the pressure of which is adjusted by means of set-screws 4. The Specification as open to inspection under Sect. 91 (3) (a) also states that the use of large selenium crystals under pressure may be extended to other apparatus in which selenium is similarly employed. This subject-mattar does not appear in the Specification as accepted.
Patent GB-199683-A (GB)
Title: Improvements relating to the manufacture of handles for metallic bath tubs and other hollowware articles
IPC: B21D53/38
Filed: 1923-03-06
Abstract: 199,683. Wood, W. March 6, 1923. Addition to 187,902. Handles. - Handles for metal bathtubs and other hollow-ware articles are formed, as in the parent Specification, by fluting the centre part b of a bar, twisting the ends through a right-angle and finally bending the whole into arched shape, all the operations being performed without heating, but the handles are made from a bar of half-round or equivalent section, the flat faces c of the ends of the finished handle being applied to the vessel.
Patent GB-918235-A (GB)
Title: Improvements in and relating to projectiles
IPC: F42B1/032
Filed: 1959-02-24
Abstract: 918,235. Ammunition projectiles. RHEINMETALL G.m.b.H. Feb. 24, 1959 [Feb. 27, 1958], No. 6440/59. Drawings to Specification. Class 9 (1). In a projectile having a shaped charge, the cone-shaped hollow is fitted with a liner which offers small resistance to the explosion gases. In one embodiment, the liner is formed of concentric rings, spaced apart, to permit the blast to pass through the annular spaces between the rings. In further embodiments, the liner is formed of separate overlapping rings or of a single strip wound in a helix to form a cone.
Patent GB-1185615-A (GB)
Title: Addition of Water or an Alcohol to Acrolein
Inventor: LUTZ EUGENE FREDERICK
IPC: C07C45/64
Filed: 1969-02-06
Abstract: 1,185,615. Hydroxyaldehydes and ethers thereof. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 6 Feb., 1969 [9 Feb., 1968], No. 6467/69. Heading C2C. #-Ether-substituted propionaldehyde, #- hydroxypropionaldehyde and the α-methyl homologues thereof are prepared by reacting acrolein or methacrolein with an alcohol or water in a liquid reaction medium in the presence of CO 2  as catalyst. The liquid medium preferably comprises excess alcohol although inert diluents may be used. Temperatures of 35-150‹ C. and pressures of 5-1000 p.s.i.g. are preferred. Examples prepare #-hydroxy-, #-ethoxy. and #-n-butoxy-propionaldehyde. #-Hydroxypropionaldehyde may be hydrogenated over Pt/C to give trimethyleneglycol and #-ethoxy-propionaldehyde may be reacted with NH 3 /H 2  to give 3-ethoxypropylamine.
Patent GB-513112-A (GB)
Title: Improvements in or modification of shaving implements
IPC: B26B19/04
Filed: 1938-03-02
Abstract: 513,112. Dry shavers. GENERAL SHAVER CORPORATION. March 2, 1938, No. 6567. Convention date, March 4, 1937. [Class 131] The bars 10 of the outer slotted cutters of a power-operated shaver having a reciprocating tubular inner cutter as described in Specification 499,772 are each formed with two zones 13 of minimum thickness the bars increasing in thickness in both directions away from said zones. The varying thickness may be produced by grinding flat intersecting planes 11, 12 on the bars. The strip 8 separates the two sets of cutter slots 7, wider slots 9 being provided to facilitate the entry of the hair.
Patent GB-581789-A (GB)
Title: Improvements in photographic reversal processes
IPC: G03C1/485
Filed: 1942-09-01
Abstract: 581,789. Photographic reversal processes ; colour photography. KODAK, Ltd., KNOTT, E. B., and STEVENS, G. W. W. Sept. 2, 1942, Nos. 6577/44 and 6576/44. Divided out of 581,773. [Class 98 (ii)] The reversal process described in Specification 581,773, wherein a silver salt emulsion of the kind which forms a latent image mostly inside the grains is treated by (a) exposing the layer to an object or image, (b) without developing the internal image so formed, treating the emulsion so as to render it capable of forming a surface latent image, (c) exposing the layer to light to form a reversed surface latent image, and (d) developing it in a bath which will develop surface, but not internal latent images, is applied in the successive reversal development of material comprising on a single support mixed, superimposed, or juxtaposed emulsions which are selectively exposable to light, especially multi-layer material for colour photography. The invention also includes sensitive material for use in the application. The selective exposability may be achieved by using emulsions of different colour sensitivity, or two emulsions with colour filter separation, or two emulsions coated in juxtaposed areas of the support. In one example, material comprising superimposed red and green sensitive layers of the kind referred to is, after exposure, first immersed in a surface colour developer for the red record, which effects treatment (b) above, is exposed uniformly to red light, and the red record is allowed to develop a reversed image in the same developer ; it is then washed and immersed in a surface colour developer for the green record, is exposed uniformly to green light through the support, and the green record is allowed to develop to a reversed image in the same developer, all silver being finally removed. The colour developers normally used in colour photography which have little or no tendency to dissolve silver halide are suitable for the purpose of treatment (b), but the alternative described in Specification 581,773 of a separate step consisting of treatment with plain water when the emulsion to be treated contains a suitable sensitizing dye may be adopted for this treatment. A further example is given in which reversed images are produced in succession in a sensitive material composed of three superimposed or mixed emulsions sensitive respectively to blue, green and red, in which the inherent blue sensitivities of the red and green sensitive emulsions are low compared with that of the blue sensitive emulsion ; in this example, colour developers containing colour formers may be used for the successive reversal steps, or an ordinary surface developer may be used in each step which develops a silver reversed image in the selectively exposed layer, said silver being then bleached to silver ferrocyanide (by controlled diffusion for the middle and top layers) and thereafter appropriately colour developed. Specifications 507,841, 524,087, 532,098, 540,444 and 581,772 also are referred to.
Patent GB-249312-A (GB)
Title: A process for purifying coal or other gases
IPC: C10K1/10
Filed: 1925-03-11
Abstract: 249,312. Reeson, J. N., and Moss, W. L. March 11, 1925. Materials and compositions for purifying gas.- Gases are purified from hydrogen sulphide, hydrogen cyanide, carbon bisulphide and thiophene by passing 'them through a neutral solution of iron hydroxide in the presence of organic substances which prevent the precipitation of iron hydroxide, e.g. salicylic acid, para hydroxybenzoic acid, phthalic acid and their salts, polyatomic alcohols and their derivatives, including the glycols and glycerine, citric acid, and citrates. The solution is prepared by adding a 2 per cent solution of ferric sulphate to a 5 per cent solution of one of the above substances, neutralizing with soda ash and oxidizing by aeration with air. The solution is regenerated by aeration with air under pressure, sulphur being deposited and polythionic acids formed. The latter are accumulated in the liquid and ultimately recovered as thiosulphates.
Patent GB-767473-A (GB)
Title: Improved apparatus for supporting workpieces during electroplating
IPC: C25D17/08
Filed: 1955-03-08
Abstract: 767,473. Electroplating. GENERAL MOTORS CORPORATION. March 8, 1955 [March 17, 1954], No. 6783/55. Class 41. Apparatus for supporting workpieces 26, 28, 30 during electroplating comprises a frame 18 to which is secured and electrically connected a member 36 or 38 having a non-conducting covering 44 over part of which is a conductive layer 46 electrically connected to the member and easily strippable from the covering 44 thereon. The frame 18 has fingers 20, 22, 24 which support the workpieces 26, 28, 30 and direct current to the workpieces through their ends which alone are not covered with insulation 44. Welded at 42 to the vertical limbs of the frame 18 are C-shaped metal members which, with their insulating covering 44 and superimposed conducting layers 46, form bars 36, 38. The insulating covering may be natural or synthetic rubber or polyvinyl chloride, and the conducting layer may be a mixture of finelydivided copper and an organic binder. In addition, the insulating covering on each of the fingers 20, 22, 24 may be continued over the end of the fingers and a conducting layer which contacts the finger through a metal stud may be formed on the insulating covering from which it is easily strippable.
Patent GB-1395876-A (GB)
Title: Hydrogenation of unsaturated carbocyclic or heterocyclic compounds
IPC: C07C5/10
Filed: 1974-02-14
Abstract: 1395876 Hydrogenating hydrocarbons DIAMOND SHAMROCK CORP 14 Feb 1974 [15 Feb 1973] 6786/74 Heading C5E [Also in Division C2] Unsaturated carbocyclic compounds may be converted into more saturated compounds by hydrogenation in the presence of a hydroxide of cobalt, ruthenium, palladium, rhodium or nickel which is used unsupported and undried. If desired alumina may be added to the reaction mixture. An example describes the hydrogenation of benzene to cyclohexane using a wet Ru(OH) 3  catalyst.
Patent GB-549645-A (GB)
Title: Improvements in or relating to duplex optical projection apparatus
IPC: G03B23/18
Filed: 1941-05-27
Abstract: 549,645. Optical-projection apparatus. KODAK, Ltd. May 27, 1941, No. 6788. 'Convention date, July 25, 1940. [Class 97 (i)] Change-over shutters for two projection apparatus are operatively connected with driving means causing one shutter to open and the other to close with simple harmonic motion, so that the screen brightness is substantially constant during the change-over. As shown, the members of each of two pairs of shutter blades 31, 33, and 48, 56 respectively, move laterally towards one another to meet centrally in one beam while those in the other'beam move apart, an'd vice versa. 'The blades 31, 33 are respectively carried by parallel bars 24, 27 pivoted to_parallel arms 16, 17 centrally carried on pivots 18, 19. A spring 42 connects the arms 16, 17, to maintain engagement between an L-shaped member 38, pivoted thereon, and one or both of two rollers 69, 70, mounted near opposite ends of a diameter on a rotatably driven disc 68. Similar members are provided in connection with the blades 48, 56 to maintain an L-shaped member 60 in engagement with one or both of rollers 71, 72 mounted near opposite ends of a diameter on the other side of the disc 68. The two diameters are at right angles to one another, with the result that the phase difference of the harmonic motions of the blades in the two beams is 90 degrees and the illumination of the screen during the changeover is substantially constant.
Patent GB-940622-A (GB)
Title: Improvements in or relating to implements for laterally displacing crop lying on the ground
IPC: A01D78/00
Filed: 1960-02-26
Abstract: 940,622. Haymaking machines. C. VAN DER LELY N.V. Feb. 26, 1960 [March 26, 1959], No. 6850/60. Heading A1F. A haymaking machine comprises a frame carrying rake-wheels and includes a main beam 15 having a longitudinal slot 16 (Fig. 4) therealong and two subsidiary beams 7, 11, each subsidiary beam carrying a group of at least two rake-wheels and being provided with a laterally-projecting part 17, 18 which engages in the slot in the main beam and co-operates with members 19-23 thereon to lock the subsidiary beam in various lateral positions of adjustment. The rake-wheels 1-4 are carried on the ends of J-shaped beams 5, 9 pivoted by means of stub-shafts 6, 10 on the beams 7, 11. The stub-shafts and the beams 7, 11 each have integral collars such as 37, 39 (Fig. 4) and with mating notches 39A, 45 engageable by a latch such as 40 to hold the beams in position; one of the notches is larger than the other to permit some freedom of movement in overcoming ground irregularities. The same arrangement applies between a stub-shaft 31 on the beam 15 and the part 33 of the frame which is carried on the draft-linkage 34A, 34B. This part comprises an inverted T-shaped part connected to the draft-linkage and a flat platform 33F rotatable about a vertical axis and lockable to the first part by a pin 33H. Springs 33A suspend the beam 15 from the upper end of the T-shaped part. The laterally-projecting parts 17, 18 on the beams 7, 11 consist of flat keys which extend between pairs of lugs 19-23 on the beam 15 and are locked to them by bolts passing through aligned holes. By inverting the beam 15 about the stub-shaft 31 and inverting the beams 5, 9 about their stub-shafts 6, 10 the device may be brought into the position shown in Fig. 6, for swath-turning. The power-lift arrangement also includes a bracket 49 and chain 48 forming the subject of Specification 940,623.
Patent GB-482069-A (GB)
Title: Improvements in a method for assisting the fermentation of yeast, more especially indoughs
IPC: A21D2/18
Filed: 1937-03-09
Abstract: A solution obtained by treating raw starch-containing substances with acid to saccharify them, further saccharifying with diastase and filtering is added to dough to assist fermentation.  Specifications 186,924, 201,512, [both in Class 28 (i)], 382,517, and 482,635 are referred to.  Reference has been directed by the Comptroller to Specifications 186,924 and 201,512.
Patent GB-616789-A (GB)
Title: Improvements in or relating to the preservation and packaging of food
IPC: B65B55/14
Filed: 1945-03-19
Abstract: Food, e.g. soup or a vegetable, fruit, meat, fish or fowl to which water or a syrup has been added, is heated to sterilize it, and preferably also to cook it partially, and also to cause the evolution of water vapour, and introduced into a flexible-walled, impervious container, e.g. of rubber hydrohalide, a cellulose ester, or a vinyl ester sheet material, to leave a substantial head space in the container, or alternatively, such a container already containing the measured amount of the food is so heated, and upon filling of the head space with water vapour, the container is hermetically sealed; the sealed container is then allowed to cool, whereupon the upper portions thereof collapse. The container is preferably of material fusible on at least the inner face, sealing being effected by bringing the mouth portions face to face and applying heat and pressure to a transverse strip of the mouth so flattened.  The food within the sealed container is preferably quick-frozen, and so maintained until reheated in the container, e.g. by subjection to a high frequency induction field for a few seconds, for the final cooking and serving.  A case of fibre board or the like, having internal dimensions smaller than the corresponding external dimensions of the extended container is advantageously employed for supporting the container.
Patent GB-752915-A (GB)
Title: Improvements in or relating to strap type securing apparatus
IPC: B60P7/08
Filed: 1954-03-10
Abstract: 752,915. Clamps; hooks. EASTERN ROTORCRAFT CORPORATION. March 10, 1954 [March 23, 1953], No. 6960/54. Classes 44 and 89 (2). An apparatus for securing cargo in a vehicle, such as a truck or an aircraft, has a strap 12 and a length-adjusting and load-transfer device therefore, the device including a frame, a strapengaging and load-transfer part 24 supported in the frame by a pivot, the strap 12 extending around the load transfer part 24 approximately 180 degrees, and a beam 22 supported in the frame near the unloaded end of the strap 12, the load-transfer part 24 being constructed to act as a clamp to apply pressure to the beam 22 and having the ends about which the loaded end of the strap passes rounded and located further from the pivot than the opposite end 26, which constitutes a clamping-end eccentrically curved in relation to the pivot to provide a progressive increase in clamping effect with increase in strap load, the end of the load-transfer part 24 about which the loaded end of the strap passes being such that its longitudinal extension 24a makes an obtuse angle with the loaded end of the strap 12. The frame comprises guide-plates 19 brought together at one end to form a hook and separated at the other end by spreader rods 20, 21, the rods 21 acting as guides for the strap 12 to ensure a constant direction of pull on the part 24. A release-handle 28 is attached to each end of the part 24 by lugs 29 to rotate the part 24 against the pull of the loaded clamp 12 and release the clamping-end 26 of part 24 from engagement with the strap 12. Smooth edgegrooves may be formed along the clamping edge 26 to grip the strap 12. A hook 13 at the opposite end of the strap 12 from the lengthadjusting device is formed from side plates 16 spread apart at one end to secure a spreader bar 17 to which the strap 12 is attached. The hook 13 has a spring-loaded keeper 15.
Patent GB-349644-A (GB)
Title: Improvements in or relating to the construction of spring mattresses
IPC: A47C27/04
Filed: 1930-03-03
Abstract: 349,644. Spring mattresses. JESSUP, J. G., 34, Queen Annes Gardens, Enfield, Middlesex. March 3, 1930, No. 6976. [Class 52 (iv).] Rows of interconnected upholstery springs e are assembled side by side, adjacent rows being connected along longitudinal lines at points midway of their height by textile material. Preferably the rows of springs are housed in pockets formed by securing two layers of fabric a along spaced parallel lines c. The open ends of the pockets are covered by a strip of fabric and adjacent pockets may be stitched together in the planes of the ends of the springs.
Patent GB-726699-A (GB)
Title: Improvements in and relating to holding members for filing or classifying devices
IPC: B42F13/30
Filed: 1953-03-13
Abstract: 726,699. Loose leaf binders. LANCOIS, R. M. March 13, 1953 [March 20, 1952], No. 7051/53. Class 146(1). A loose leaf binding device comprises a base plate 1, adapted to be fixed to a back cover, to which is hingedly connected close to the edge of the back cover a rocking part 8 having two tubular arms 9 extending parallel to one another, on which the leaves are mounted, and a U- shaped rod 6 slidable in guides 3, 4 on the base plate 1 and having its limbs bent upwards and rearwards into alignment with the tubular arms 9 in the downwardly rocked position, so that the free ends 6<SP>1</SP> of the bent rod 6 can be slid into and out of the tubular arms, the base plate 1 of the device being stamped out of sheet metal or other suitable material and the guides 3, 4 for the limbs of the U-shaped rod 6 being formed by bending the lateral edges of the base plate. The guides 3, 4 are also provided with cut-in portions 5 which act as stops to locate the U-shaped rod 6 with its ends 6<SP>1</SP> just clear of the tubular arms 9. The base plate 1 has holes 2 for securing it to the cover and lugs 7 for mounting the rocking part 8. The inner ends of the tubular arms 9 are cut away at 10 so that the rod ends 6<SP>1</SP> must be moved towards each other slightly to release the arms 9 for pivoting, so that accidental release of leaves in the binder is prevented. Specification 689,924 is referred to
Patent GB-1161531-A (GB)
Title: Improvements relating to Bearings
Inventor: MACDONALD ROBERT JOHN
IPC: C25D7/10
Filed: 1967-02-14
Abstract: 1,161,531. Bearings. CLEVITE CORP. 14 Feb., 1967 [14 Feb., 1966 (2)], No. 7090/67. Heading F2A. A multi-layer bearing comprises a steel backing 12 coated successively with copper 14, a mixture 16 of lead oxide and silicon oxide, i.e. approximating to lead silicate, in Cu or Ag base material, a layer 18 resistant to Sn diffusion and a surface layer 20 of Pb based Sn alloy. Layer 18 is formed of Ni, Fe, Cd, Zn or Co. Layer 20 is of an alloy of Sn, Cn and Pb. To make the bearing, a steel strip is electroplated with Cu, and then receives a layer of particles of material 16 from a hopper (24, Fig. 2), then passes through a sintering furnace (26), is reduced in thickness by rollers (28), is resintered in furnace (30) reduced in thickness by rolls (32) to strain harden, and cut into pieces. Each piece is shaped, has lead silicate removed from its surface, e.g. by dissolving, vapour blasting or machining, and is electroplated with Ni, and then with Pb, Sn, Cu alloy.
Patent GB-627688-A (GB)
Title: Improvements in and relating to electric overload relays
IPC: H02H7/085
Filed: 1945-03-21
Abstract: 627,688. Protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. March 21, 1945, No. 7136. Convention date, March 22, 1944. [Class 38(v)] An overload relay for a three-phase motor using an inductively-heated thermal element, such as the short-circuited bimetal helix described in Specification 541,418, comprises two primary inducing coils 12, 13 connected in two supply, lines, and arranged with their axes substantially at 90 degrees to one another, and at 45 degrees to the axis of the thermal element 10, so that the latter is heated to approximately the same temperature on three-phase overload as on single phase in event of a fault.
Patent GB-434532-A (GB)
Title: Improvements in or relating to combs for the dressing and cleaning or dusting of the hair and the like
IPC: A45D24/42
Filed: 1934-03-07
Abstract: 434,532. Hair combs. GLOVER, H. S., 96, Stainbeck Road, Leeds. March 7, 1934, No. 7217. [Class 131] In a comb of the kind comprising two separable comb - like parts a, b each capable of use for removing deposit from the other and adapted to be held in union with the teeth of one in the spaces between the teeth of the other, the back h<1> of the part b is adapted to be sprung into a longitudinal recess or groove g in a side face of the back of the part a, the back h<1> and the recess g being so formed that, when engaged, they retain the parts in union. The sides of the groove g for a portion of their length adjacent the ends of the part a are perpendicular to the bottom surface g<1> of the groove, and for the remainder of their length are inclined thereto to form an overhanging lip g<2> and a parallel lower surface g<3> at the top of the teeth, the upper edges h<2>, k<1> of the back h<1> and of the attached teeth being made of a co-operating shape. In a modification, teeth are provided along each longitudinal edge of the back of the comb.