baber/WOPTO huggingface dataset:
Patent GB-535335-A (GB)
Title: Improvements in or relating to the manufacture of polymeric materials
IPC: C08G69/02
Filed: 1939-09-29
Abstract: 535,335. Polyamides. DU PONT DE NEMOURS & CO., E. I. Sept. 29, 1939, No. 26884. Convention date, Sept. 29, 1938. Samples furnished. [Class 2 (iii)] Polyamides are modified by heating them with, or preparing them in the presence of, a hydroxyamine in which the amino and hydroxyl groups are separated by two or three carbon atoms. The products, which have as terminal groups oxazoline or oxazine groups, are viscosity stabilized and have a greater affinity for dyes. The polyamides (which include interpolyamides) include those derived from monoaminomonocarboxylic acids or amide-forming derivatives thereof such as an ester, acid halide, acid anhydride, amide or lactam, from monoaminomononitriles (in the presence of water), from diamines and dicarboxylic acids, amide forming derivatives of di-carboxylic acids, dinitriles (in the presence of water), di-isocyanate, di-isothiocyanate, diurethane, di-thiourethane or a tetrathiourethane, or from salts of diamines and dicarboxylic acids. Suitable hydroxyamines include #- ethanolamine and α-methyl-, #-methyl, xmethyl - # - methyl-, di - α - methyl, di - # - - ethyl - α - methyl- and # - phenyl - # - ethanolamine, α - propanolamine and # - methyl - α - propanolamine, o-aminophenol, 3-amino-4- hydroxytoluene, 1-amino-2-hydroxy- and 2- amino-3-hydroxynaphthalene. The products may be used in the manufacture of fibres, films, ribbons, bands, sheets, bristles, ' and moulded articles ; products of low molecular weight may be used in the manufacture of coating, moulding, sizing, impregnating and adhesive compositions. In examples, (1) hexamethylene diammonium adipate is polymerized in the presence of water and # ethanolamine ; (3) #-caprolactam is polymerized in the presence of #-ethanolamine. Specification 461,237 is referred to.
Patent GB-482724-A (GB)
Title: Improvements in or relating to generators of relaxation oscillations
IPC: H03K4/86
Filed: 1936-10-03
Abstract: 482,724. Valve generating circuits. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Oct. 3, 1936, Nos. 26894 and 26895. Convention dates, Oct. 4, 1935 and July 29, 1936. [Class 40 (v)] In a relaxation oscillator in which a condenser C is charged through a resistance R, and is discharged through a grid-controlled tube T<1>, the tube is rendered periodically conductive by associating a gas discharge tube N with its grid-cathode circuit. The grid of the tube T<1> is normally at a negative potential due to the cathode resistance P, but when the tube N is rendered conductive by a pulse applied through the coils B, the tube T<1> becomes conductive and discharges the condenser C. The tube N is connected to the junction of resistances P<1>, P<2> across the supply. By connecting a condenser K across the resistance P<2>, the tube N may be arranged to flash periodically and independently of the synchronizing pulses. The presence of the tube N reduces the exponential curvature of the charging-curve of the condenser C. In a modification, the tube N is replaced by a gridcontrolled gas discharge tube, and synchronizing-pulses are applied to its grid, Fig. 2 (not shown).
Patent GB-264922-A (GB)
Title: Improvements in or relating to drying apparatus
IPC: E01C19/05
Filed: 1925-10-27
Abstract: 264,922. Stothert &, Pitt, Ltd., and Minty, W. Oct., 27, 1925. Tar - macadam, plant for making. - Rotary stone driers for use in the manufacture of tar macadam are provided with inclined blades 4, between the usual longitudinal blades 2, which throw back the larger pieces of material so as to retard their passage through the drier.
Patent GB-353309-A (GB)
Title: Improvements in or relating to acoustic devices such as loud speakers
IPC: H04R7/08
Filed: 1930-09-09
Abstract: 353,309. Sound-magnifying appliances. DESBRIERE, E. M. F. L., 16, Rue des Braves, Marseilles, France. Sept. 9, 1930, No. 26967. Convention date, Sept. 14, 1929. [Class 13.] The sound outlet or outlets of an acoustic device, such as a loudspeaker, are adapted to be closed tightly by an attachment comprising a set of thin, flat, airtight, non - perforated, easily vibrating films, each of a different thickness and made of non-sonorous material, the films being mounted parallel to each other by means of rigid rings so as to form closed air spaces between them and being vibrated solely by changes of air pressure within the acoustic device. The films may be made of celluloid, thin metal, paper, leather, indiarubber, &c. Fig. 1 shows an arrangement in which films 3, 4, 5 fixed to rings 6 are secured over the mouth of a horn 2 by means of a rubber ring 7, the smaller end of the horn being fitted with a gramophone soundbox or telephone receiver. According to a modification, Fig. 2, the films are fitted over one or, as shown, both ends of the casing 8 of a cone loudspeaker, each set of films being preferably protected by a perforated non-vibrating disc 12. A similar arrangement may be employed with an electrostatic loud-speaker, Fig. 4 (not shown). The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of diaphragms of wood, pasteboard, paper paste, ropes or strings. This subject-matter does not appear in the Specification as accepted.
Patent GB-835951-A (GB)
Title: Improvements in or relating to ceiling structures
Inventor: GIBBS BERNARD JAMES
IPC: E04B9/16
Filed: 1957-08-27
Abstract: 835,951. Ceilings. LIGHT STEEL SECTIONAL CONSTRUCTIONS Ltd. Aug. 27, 1958 [Aug. 27, 1957], No. 26981/57. Class 20(4) [Also in Group XXV] Steel framing for a suspended ceiling construction comprises flanged panel-supporting members 2, having a head portion 2a, a double thickness web and flanges 2c, which are connected to main flanged bearer members 1 by clips 3 shaped to embrace the head 2a and slotted at 3c to slidably engage the flanges 1a. The clips 3 may be formed of two stampings, spotwelded or bolted together and are provided with a central lip 3d which projects between the walls of the bearers 1. The ends of the members 2 are supported by brackets 4 and the members 1 are supported by similar brackets and by adjustable hangers. The edges of the panels are slotted to receive the flanges 2c. To prevent vibration, fibre pads may be positioned between the clips 3 and members 1, 2.
Patent GB-601505-A (GB)
Title: Improvements in the sterilization and preservation of comestible materials
IPC: A23L3/3409
Filed: 1945-10-16
Abstract: Foodstuffs other than cereals and containing more than 75 per cent of water, e.g. meat, fish, including oysters, clams and shrimps, fruit and vegetables, including mushrooms, in the raw, cooked or partly cooked condition, are preserved against deterioration by micro-organisms by treating with chlorine dioxide and allowing, or causing by heating, any remaining chlorine dioxide to decompose.  The chlorine dioxide may be used in mixture with air or other gas inert with respect to the chlorine dioxide and the food, or may be used in aqueous solution. The food may be sealed in impervious containers, e.g. cans, glass containers, during or after the treatment with chlorine dioxide. The treatment is advantageous preliminarily to freezing the food. Examples demonstrate the prevention of mould growth and the development of added thermophilic bacteria in varieties of beans, peas, pea juice, carrots, beets, pumpkin, tomatoes, corn, and green peppers, and the delaying of mould growth and development of sourness or rank odour in beef, fish, lamb, pork and veal.
Patent GB-456783-A (GB)
Title: Improvements in or relating to motor road-sweeping machines
IPC: E01H1/08
Filed: 1935-10-02
Abstract: 456,783. Rotary brushes. HEUSER, G., 25, Falkensteinerstrasse, Frankfort-on- Main, Germany. Oct. 2, 1935, No. 27185. [Class 19] [See also Group X] The rotary sweeping brush of a road-sweeping machine comprises two coaxial brush rollers 6, 7, each consisting of a number of radially adjustable brushes 20. Each brush roller is formed of a number of radially adjustable sections each comprising a holder 21 and a resilient arm 22. These arms pass through guides 26 of members 24 attached to shafts 23 and are provided with rack teeth which engage with helical teeth of caps 29. Rotation of the caps effect the radial adjustment of the arms, the caps being locked in the required position by nuts 30.
Patent GB-383703-A (GB)
Title: Improvements in and relating to rotary well-drilling apparatus
IPC: E21B19/08
Filed: 1931-09-30
Abstract: 383,703. Well-drilling apparatus. CUTHILL, J., Glencoin, Bramhall, and OIL WELL ENGINEERING CO., Ltd., Cheadle Heath, Stockport, both in Cheshire. Sept. 30, 1931, No. 27256. [Class 85.] A rotary well - drilling apparatus has a hydraulic or other fluid-pressure feeding device fitted to the rotary table to rotate therewith and pressure fluid for actuating said device is supplied through the drill stem. As shown, a drive bushing 3a, fitted to the rotary table 1, forms part of a hydraulic &c. cylinder 3 which may be built of a variable number of longitudinal sections, some of which may be below the table. A piston 22 within the cylinder has a polished lower rod 7 for connection to the drill stem, and an upper square or splined rod 15 by which the drill is rotated from the table through the upper cylinder cover 10. A ring 16, rotatable on the cover 10, has eyes 19 for connection of holding down means. The upper end of the rod 15 is secured to the body 39 of a swivel, the inner member 51 of which is secured to a goose-neck 49 for supply of mud-flush &c. to the drill. Within the rod 15 pass pipes 30, 31, connected below to ports 26, 27, opening below and above the piston, the pipes terminating above in a plug 57, rotatable in the goose-neck 49 and provided with passages for connection of the pipes 30, 31 to fluid supply connections 66, 69, respectively ; fluid is supplied to and exhausted from the pipes 66, 69 through a four-way valve 36, and the pipe 66 has a gauge 73, indicating the weight suspended on the piston. Fluid supply means to the upper side of the piston are omitted when it is not desired to apply downward pressure.
Patent GB-463442-A (GB)
Title: Improvements relating to means for interconnecting single phase and polyphase supply networks
IPC: B60R7/08
Filed: 1935-10-03
Abstract: 463,442. Converting. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 3, 1935, No. 27342. Convention date, Oct. 3, 1934. [Class 38 (ii)] In a system of the kind described in Specification 459,919 symmetrical current and voltage distribution on both networks at any power factor is obtained by applying to the capacitative and inductive loads voltages which or + 45 or +135‹ phase displaced with respect to a line bisecting the current and voltage vectors on the single phase network. As shown, the series connected phase windings 1, 2 supplying the single phase load B have tappings so that the phase of the voltages applied to the inductive and capacitative loads E, D may be varied to suit the P.F. at which the system is operating.
Patent GB-307874-A (GB)
Title: Improvements in pump actuating mechanism
IPC: F02M59/14
Filed: 1928-09-24
Abstract: 307,874. A. C. Spark Plug Co., (Assignees of Babitch, A.). March 15, 1928, [Convention date]. Cam and lever actuated pumps.-In a pump in which the suction stroke is effected through a linkage mechanism adapted to collapse on the return stroke, means are provided to prevent alignment of the links and so to ensure the collapse of the linkage, comprising a stop on one of the links and a curved surface on another link merging into a surface adapted to contact tangentially with the stop. A diaphragm pump is shown in Fig. 1, in which the suction stroke is effected through pivoted links 61, 69 connecting the diaphragm stem 25 with a cam-actuated rocking lever 49. The link 69 forked at 67 to receive and curved to fit a recessed end 65 of the link 61 engages a shoulder 72 formed on the latter link 61 and is itself reduced at 73 to receive the forked end 75 of the rocking lever 49. Fig. 5 shows an alternative arrangement in which a curved shoulder on one link 91 engages a stop pin 95 joining two laminae forming the other link 83. The stop pin 95 may be displaced from the central line of the link. Fig. 4 shows one link 101 extended in a curved direction to carry a stop pin 110 which engages with the edge of the co-operating link; this gives a contact on a line tangential to the curved end of the link 111 and adjacent the point of tangency.
Patent GB-382397-A (GB)
Title: Division of sheet material into strips or filaments particularly in the production of rubber thread
Filed: 1931-10-02
Abstract: 382,397. Cutting rubber thread. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, WILLSHAW, H. and BROADBENT, F. G., Fort Dunlop. Birmingham. Oct. 2, 1931, No. 27422. [Class 31 (i).] Stationary-cutter machines.-In a machine for cutting threads from sheet rubber, shearing discs 1 are strung upon shafts 5, 6 and spaced apart by thin rubber washers. Screw connections 13 apply axial pressure. To prevent canting of the discs idler discs may be inserted between the cutting discs at a point opposite to the cutting point. More than two rows of discs may be used for operating upon a plurality of sheets.
Patent GB-742477-A (GB)
Title: Improvements in or relating to bladed stator or rotor constructions for fluid machines such as axial-flow turbines or compressors
Inventor: LOMBARD ADRIAN ALBERT
IPC: F01D5/08
Filed: 1952-10-31
Abstract: 742,477. Turbines and compressors. ROLLS-ROYCE. Ltd. Oct. 23, 1953 [Oct. 31, 1952], No. 27512/52. Class 110(3) In a bladed rotor or stator assembly for an axial-flow turbine or compressor, the blades each have at least one longitudinal passage formed therein adjacent the leading edge, a second longitudinal passage adjacent the trailing edge and a third longitudinal passage adjacent the midchord of the blade, the passages being interconnected at one end of the blade. The ends of the first and second passages remote from the interconnection are fed with fluid under pressure for cooling or heating purposes, the fluid being discharged from the blade through the end of the third passage which is remote from the interconnection. The fluid in the case of blades of a turbine in a gas turbine engine may be cooling air taken from the engine compressor. A turbine rotor blade is shown in Figs. 1, 2, and comprises a vane portion 11 formed with passages 17, 18 adjacent the leading and trailing edges and a larger passage 19 at the mid-chord. The passages are interconnected at 22 adiacent the blade tip and cooling air is fed upwardly through passages 17, 18 and downwardly through passage 19. The blade is mounted in rotors as described in Specification 742,476. The invention is shown applied to inlet nozzle guide vanes of a gas turbine in. Fig, 11. The vane 60 has three passages 63, 64, 65 and is mounted in inner and outer shrouding structures 61, 62 which are in the form of annular manifolds. The inner shrouding comprises two channel-shaped members 66, 70 which form an inlet manifold 87 therebetween and the outer shrouding also comprises two channel-shaped members 77, 78 which form an interconnecting manifold 83. The channel member 70 of the inner shrouding is formed with depressions 73 which are disposed opposite the inner end of each vane 60, the depressions having ports therein which register with the discharge passages 65. Cooling air is supplied through the pipe 75 and after passing through the blade discharges from the passage 65 into the working fluid stream. The inner and outer shrouds are located in stator structure 76, 86 by means of dogs 69, 85 respectively. In Fig. 13, the blade is formed with a number of small passages 90, 91 adjacent the leading and trailing edges and a single large passage 92 of the' mid-chord. Specification 699,582 also is referred to.
Patent GB-1306175-A (GB)
IPC: F16L3/24
Filed: 1971-06-11
Abstract: 1306175 Releasable fastenings; stud and socket fastenings TRW INC 11 June 1971 [2 July 1970] 27512/71 Headings E2A and E2B Cables 22, Fig. 1, for example are clamped to a channel-shaped member 6 by a strap 24 and a pair of clips 20. The member 6, Fig. 2, and the strap 24, Fig. 3, are provided with spaced-slots 14 and 32 respectively. Each clip 20 is made of spring metal, has a head 36, Fig. 6, and legs 40, 42. The leg 40 extends to a bent portion 48 and to a flexible hook portion 50 and the leg 42 has a pair of arms 56, each having a portion 57, Fig. 7, which extends at 90 degrees to the arm 56. Each leg has a lug 52, Fig. 6, which retains the clip in one of the slots 14 of the member 6. In use the strap 24 is passed through an aperture 38 in the head 36 and between the arms 56, Fig. 6, of the leg 42. The hook of the portion 50 enters a slot 32 in the strap 24, the amount of entry of the hook being limited by a protrusion 47 formed on the portion 50. The protrusion is positioned so as to be located adjacent one of the slots 32 in the strap so that, by pulling an end 30 thereof, the hook is moved out of the slot, the protrusion 47 and the hook effecting a camming action. Release of the strap end 30 allows re-hooking to be effected. Un-clamping of the cables is by a tool (not shown) which moves the hook portion 50 away from the strap 24.
Patent GB-206338-A (GB)
Title: Improved extensible garment hanging rail for use in a wardrobe or the like
IPC: A47B61/02
Filed: 1922-10-11
Abstract: 206,338. Everitt, J. Oct. 11, 1922. Garment racks.-An extensible garment rack comprises a longitudinally slotted tubular fixed guide member a fitted with detachable end caps e, f and a sliding member constituted by two parallel bars g<2>, g<3> connected by end pieces g<4>, g<5>, the upper bar g<2> passing through a hole in the front end cap f and the inner end piece g<4> being notched at h, i to accommodate the edges of the longitudinal slot d in the guide portion a. The outer end piece g<5>, which is extended to form a handle, is detachably secured to the bars g<2>, g<3> for ease of assembly. The bar g<2> is further supported by a cross-bar j at the front end of the guide portion a. According to the Provisional Specification, the cross-bar j may be replaced by a roller and the notches h, i by anti-friction means.
Patent GB-366887-A (GB)
Title: Improvements in holders for saucepan and like lids
IPC: A47J36/10
Filed: 1931-10-05
Abstract: 366,887. Saucepan &c. lids. FRÍHLICH, K. R., 6, Hirschsteinstrasse, Mylau, Vogtland, Germany. Oct. 5, 1931, No. 27622. [Class 66.] A saucepan or like lid is detachably connected to the pan by being engaged by a clip c, c<1>, hingedly connected to a plate b provided with hooks d engaging the edge of the pan, a pair of interconnected arms e operable by a lug f being also mounted on the hinge-pin h and adapted to be turned to engage the wall of the pan to retain the device in position. The clip is provided with a lever g for opening and closing the lid.
Patent GB-1388883-A (GB)
Title: Apparatus and method and manufacturing colour picture tubes
IPC: H01J9/227
Filed: 1972-06-13
Abstract: 1388883 Luminescent screens MATSUSHITA ELECTRONICS CORP 13 June 1972 [18 June 1971] 27624/72 Heading H1D In the manufacture of a black matrix for a colour television screen wherein a photo-resist on the faceplate is exposed three times through a shadow mask to a light source placed in three different locations and the light passes through a correction lens and a filter or attenuator, the sizes of the dots so formed at the edges of the screen may vary considerably if the filter is near the lens because light passing to adjacent areas from the different source locations passes through widely separated areas of the filter and is therefore subject to different attenuations; this is avoided by placing the filter nearer to the shadow mask than to the lens. Preferably the distance between the light source and the filter is more than 1À5 times the distance between the light source and the lens. The filter may be of glass coated with metal and is preferably mounted so that its centre can be displaced laterally when the position of the light source is changed and so that it can be rotated during an exposure; alternatively, the light may be attenuated by means of a rotating shading blade. The apparatus may be used for depositing dots of polyvinyl alcohol on which a black matrix is formed, or alternatively for depositing phosphor dots.
Patent GB-348987-A (GB)
Title: Improvements in and relating to spectacle frames
IPC: G02C1/08
Filed: 1930-09-16
Abstract: 348,987. Spectacles. JœCH, O., 28, Jederitzerstrasse, Rathenow, Brandenburg, Germany. Sept. 16, 1930, No. 27629. Convention date, Aug. 18. [Class 97 (i).] In spectacles of the type in which the sides are held between the two halves of a split cheek carried by the frame, the screw d holding the cheek together is held on to the half b of the cheek which receives the head of the screw d by means of a washer f, which preferably consists of soft metal and which can lie in a recess e in the half b of the cheek. The side a may also be held in the half b of the cheek which carries its supporting pin g by means of a washer h engaging a recess g<11> in the pin. For the reception of the washer h the half b<1> of the cheek may have a recess i<1>.
Patent GB-381330-A (GB)
Title: Improvements in or relating to wheel hubs
IPC: B60B27/02
Filed: 1931-10-06
Abstract: 381,330. Wheel hubs ; ball bearings. TAN SAD, Ltd. and SHOTT, P., 46, Upper Dean Street, Birmingham. Oct. 6, 1931, No. 27698. [Classes 12 (i) and 144 (i).] A wheel hub is provided with a race for balls e, which abuts against an outwardly flanged portion a<2> of a tubular member a, and is held in position by means of a sheet metal plate or disc-like member f having flanged parts f<1> riveted to the internal face of the hub, for example, by means of spoke-rivets. The outer ball-race member takes the form of a tube d which is outwardly bulged at d<1>, the bulged portion on the inner side providing, in combination with a washer c, the race for the balls e.
Patent GB-444496-A (GB)
Title: Improvements in the lubrication and sealing of vertical shafts
IPC: F16N13/20
Filed: 1934-09-28
Abstract: 444,496. Stuffing - box substitutes. BROWN & SONS (HUDDERSFIELD), Ltd., D., and MERRITT, H. E., Park Gear Works, Lockwood, Hudderstield. Sept. 28, 1934, No. 27795. [Class 122 (v)] [See also Group XXXIV] A vertical shaft carries below the bearings b, c a member k having right and left-hand screw threads k<1>, k<2>, which return oil leakage from the bearings through a passage n to the sump e.
Patent GB-751202-A (GB)
Title: A method of treating with liquid a material in granular, threaded or fibrous form
IPC: D06B5/00
Filed: 1954-09-27
Abstract: The method and apparatus of the parent Specification is modified by placing the material in a container connected to an expansion vessel and imparting to the treatment liquid a vigorous pulsating movement by raising and lowering the level of the liquid in the container by drawing liquid from and returning it to the expansion vessel.  The level may be varied by increasing and reducing the pressure above the liquid which causes the liquid to move through the material first in one direction and then in another, preferably the level will always be above the material. After this treatment the remaining steps in the method of the parent Specification are carried out, that is the removal of the excess liquid and so on.  When dyeing, the liquid may be introduced in a boiling state.
Patent GB-438821-A (GB)
Title: Improvements in beer pumps
IPC: F04B9/14
Filed: 1934-09-28
Abstract: 438,821. Beer pumps. HEATH, Ltd., W. H., and LAWRENCE, J. E., 35, Thornhill Road, Barnsbury, London. Sept. 28, 1934, No. 27875. [Class 102 (i)] [See also Group XXVI] In a beer pump, the bucket 4 has a bridge 5 having a slot 8 in which fits loosely the end 7 of the pump rod. Guiding of the rod is effected by the long packing gland 9.