baber/WOPTO huggingface dataset:
Patent GB-829305-A (GB)
Title: Improvements relating to the production of microporous diaphragms, vessels, tubular retainers and the like
Inventor: HONEY ERIC MAURICE O'CONOR
IPC: B29C44/34
Filed: 1956-04-30
Abstract: <PICT:0829305/IV (a)/1> In a process of preparing porous tubes from thermoplastic material a sheet of such material in fine granular form is sintered by uniform heating without pressure or vibration to form a porous sheet which after cooling to a lower temperature is folded so that the longitudinal edges of the sheet overlap or abut to form a tube and are then subjected to a welding temperature (which is higher than the sintering temperature) and to pressure which causes softening of the material in the overlapping or abutting areas and the production of a tube with a strong non-porous weld there.  The thermoplastic material employed is a thermoplastic polymer which shows a gradual change from predominantly elastic to predominantly plastic properties over a range of temperature of at least 20 DEG  C. Examples describe the preparaation of tubes from high-density polyethylene, polystyrene and a copolymer of vinyl chloride and vinyl acetate containing about 15% acetate.  The tubes may be used as retainers for storage battery plates or as filters for hydrocarbon oils.  In one embodiment a strip 6 of the sintered sheet is pulled through a metal die 7 with lips 8.  A jet 9 of hot air locally heats the abutting edges of the sheet forming a non-porous welded arm.  The upper segment 12 presses down the weld to prevent distortion of the tube.
Patent GB-902267-A (GB)
Title: Improvements in or relating to padded cushions
Inventor: HART JAMES
IPC: A47C7/20
Filed: 1960-04-13
Abstract: A seat cushion or mattress is produced by foaming a plastic such as a polyurethane in a mould and incorporating in the moulding one or more other resilient materials having a greater resistance to deformation such as natural or synthetic rubber or another polyurethane foam.  A slab is attached to the lid of a mould and the plastic foam introduced through a hole or placed in the mould first. Alternatively the mould has a layer of foam plastic formed in the base and a more resilient foam is applied to fill the mould.
Patent GB-1112142-A (GB)
Title: An extensible elastic metal strap
IPC: A44C5/04
Filed: 1966-03-25
Abstract: 1,112,142. Bracelets. M. ZALTRON. 25 March, 1966 [1 Dec., 1965], No. 13173/66. Heading A3H. An extensible metal strap comprises transverse members 1 each transverse member being connected at four corners by four connecting members 2 to 5 to two comers of two adjacent members so that the members are under torsion when the strap is extended. The transverse members may have various forms such as rectangular plates, interconnected tubes or spirals or elongated coils. The members may have an initial twist opposite to that during extension in order that the members retain close contact when the strap is retracted. The ends of the member 1 are connected by bent members 2 to 5. Other connecting members have various forms such as straight or bent rods or pairs of rods connected to form U-shaped members the ends of which are bent inwardly or one rod may be bent along its length. The upper surface of the transverse members may be decorated or overlapping or telescoping cover members may be secured to the transverse members.
Patent GB-514336-A (GB)
Title: Improvements in machines for securing washers on screws
IPC: B23P19/08
Filed: 1938-05-03
Abstract: 514,336. Feeding screw bolts and washers. EVERY, C. E. (Illinois Tool Works). May 3, 1938, No. 13187. [Class 117] [Also in Group XXII] Screw blanks 29, Fig. 1, are fed from a hopper 6, by a reciprocating plate 42 and clearing wheel 44 to an inclined guide chute down which they slide to a device 16 for assembling them with locking washers and which receives one at a time by an escapement mechanism. A stack of lock washers 63, Fig. 14, in the magazine 82 is continually urged up by a push-rod 96, Fig. 1, operated by a weight 88, the stack being freed automatically by spring 172 releasing a wedge 86. The washer containing cartridge or magazine 64 is detachably clipped to an arm of the machine by spring pressed pins. Selector pins 142 each formed of four spring prongs on a spider in turn move down and up to engage the hole in the top washer and lift it out, whereupon indexing of the spider a quarter turn brings it into position for pushing the blank into it.
Patent GB-131988-A (GB)
IPC: F42C15/22
Abstract: 131,988. Compagnie des Forges et AciÚries de la Marine et d' Homecourt; Oct. 26, 1917, .[Convention date]. Projectile fuses.-Relates to percussion fuses in which the striker or firing- pin is normally held by a member which is sheared or torn away on impact, and in which centrifugal locking-means are also provided. According to the invention; the striker has fixed to its head a diaphragm or safety-disk adapted to be sheared on impact, which disk is attached to the front end of the fuse-body or antenna through which the striker passes, spring-controlled centrifugal bolts being arranged under a reinforcing attachment on the striker-rod. The safetydisk may have an arched or convex form, to increase the sensitiveness. Fig. 1 shows a construction in which the striker-rod 4 is very light, being formed of tapering steel wire. On the front end are screwed two washers 6, 7, between which is clamped a shearing-disk 5 secured to the antenna 2. This may be made of aluminium. The striker, which is guided in the antenna by means such as a disk 15a or a perforated partition 15<d> (which members are only partially shown) is reinforced at 9 by a screwed sleeve, beneath which centrifugal bolts 10, 11. engage. During flight, these bolts move clear of the sleeve 9, and on impact the disk 5 is sheared, the point of the striker being driven into a percussion cap 17, which is held in a tube 18 between two washers 17', 17<2> of cork and paper. The cap 17 ignites the detonator 20 directly, but in a modification a delay-action column of compressed powder, hollowed upwardly for the greater part of its length, is provided. A modified means of attaching the head of the striker to the shearing-disk, comprising a ball- and-socket connexion, is described.
Patent GB-132426-A (GB)
IPC: F02M7/22
Abstract: 132,426. Renner, H. G. Jan. 13, 1919. Spray carburettors.-The position of a suctionactuated hinged flap 3 in the air inlet 1 determines that of a fuel valve 8 which controls the outlet of a nozzle 7 in a. choke-tube 6 projecting into the air passage between the flap and a throttle valve 2. The fuel valve is mounted on a springy arm 10 which tends to raise the valve, but the extent to which it is raised is determined by a bent lever 13 pivoted at 12 and actuated by the flap 3 through an adjustable link 14. For a given position of the flap, the opening of the fuel valve may be varied by a roller or distance-piece 15 adjustable longitudinally of the arm 10 by a Bowden wire 16. The free end of the flap is connected to the lower wall of the air passage by a flexible wall 19, and air in the chamber 21 thus produced serves to damp vibrations, since it can only escape between narrow spaces left between the sides of the flap and the walls of the air passage. Specification 124,374 is referred to.
Patent GB-332905-A (GB)
Title: Improvements in electric motors
IPC: H02K57/00
Filed: 1929-04-29
Abstract: 332,905. Smart, R. E., and Myers, R. P. April 29, 1929. Motors with unwound iron armatures. -In an electric motor adapted to operate on either continuous or alternating current the rotor is in the form of a disc of unwound iron or similar magnetic material with equidistantly spaced teeth around its periphery adapted to rotate around four magnets c connected in pairs with one pair at right-angles to the other. A depending boss b of a metal base a supports the magnets c and also forms a bearing for a spindle d carrying the armature or rotor f with teeth g. The spindle passes upwardly through the base a to a bearing h in the crush carrier i, which can be rotated on its seat k by a thumb-piece n to provide adjustment for the brushes r, s and t with respect to the commutator w. The commutator is formed by an insulating disc y surmounted by a copper disc z, six plugs from the disc y projecting through the copper to form insulating surfaces 2. The brushes r and s contact alternately with the insulating and conducting surfaces 2 and 3, while the brush t is always in contact with the marginal conducting surface 5. A worm 6 is carried on the spindle d and drives a horizontal spindle 9. A casing 10 encloses the motor. Reference has been directed by the Comptroller to Specifications 17863/09, 180,007, and 233,949.
Patent GB-825376-A (GB)
Title: Demountable furniture
Inventor: MILTON WILLIAM FRANK
IPC: A47C4/02
Filed: 1956-05-01
Abstract: 825,376. Furniture joints; seats. PRICE BROS. & CO. Ltd. May 1, 1956, No. 13340/56. Class 52(2) A dismountable chair or settee has a seat frame 1, a back-rest frame 2 and an arm-rest 3 forming the upper member of a generally rectangular side frame 4, the frames 1 and 2 being either secured as shown or hingedly secured together and the side frame 4 is releasably secured thereto by means of elements each comprising metal wedge-shaped pressings 8 which engage within pressings 7 and secured to the respective frame members.
Patent GB-784722-A (GB)
Title: Improvements relating to bushings
IPC: H02G3/06
Filed: 1955-05-09
Abstract: 784,722. Nuts. AMERICAN FLANGE & MANUFACTURING CO.. Inc. May 9, 1955 [May 11, 1954], No. 13363/55. Class 89(1) [Also in Groups XXII, XXVIII and XXXVI] A sheet-steel bushing 10 for an electrical junction-box &c., Fig. 5, has a cylindrical body 12 with a number of radially-disposed lugs 14, Fig. 1, at one end, by which the bushing may be tightened upon a conduit 20, Fig. 5, by a punch &c. The outer bushing-end 15, which may be of reduced thickness, is rolled over to form a curled throat that extends inwardly a greater distance than the thickness of the conduit-wall to prevent the raw edges of the conduit from damaging the electrical wire(s) in the conduit; the bushing has internal threads 16 that extend to a point beneath the end 15. The conduit 20 is secured to a switch or junction-box 18 by a flat nut 21 and the bushing 10, both threaded on the conduit. A method of frabricating the bushing is described.
Patent GB-109125-A (GB)
Title: Improvements in and relating to Braking Means for Road Vehicles.
Inventor: MASSIS EMILE
IPC: B60T1/14
Filed: 1916-09-21
Abstract: 109,125. Massis, E. Sept. 21, 1916. Controlling different functions by same handle or lever.-A brake or anti-skid device, particularly for motor-vehicles, consists of one or more roller shoes which are supported on the axles and can be forced into contact with the ground by liquid-pressure devices which may be operated by the steering - mechanism. In the arrangement shown, two liquid-pressure devices supported on the rear axle are connected by a wire m to a disk r gearing with a disk s which forms part of the steering-mechanism described in Specification 107,404, the arrangement being such that both roller-shoes are depressed when a considerable steering-movement is made. The wire m may be connected to the disk s. In some cases two liquid-pressure devices may be connected to the disk r or s by separate wires arranged so that only the roller-shoe on the inside of the curve is depressed.
Patent GB-603443-A (GB)
Title: Improvements in or relating to filter apparatus
IPC: B01D29/00
Filed: 1945-05-29
Abstract: 603,443. Filters. WALLACE & TIERNAN CO., Inc. May 29, 1945, No. 13451. Convention date, April 19, 1944. [Class 46] A filter for liquids comprises two chambers separated by filter medium, and each chamber being adapted to contain liquid and gas, means for restricting the flow of filtrate whereby continued introduction of liquid into the influent chamber acts to compress gas in both chambers, and means for suddenly releasing the compressed gas in the influent chamber so that a rapid reverse flow of liquid takes place through the filter medium. As shown a container 1 is divided into two chambers by a partition 6 provided with depending tubes 8 to which filter supports 9 are secured. The supports may be fine wire cloth, porous stones or fluted spools helically wound with closely-spaced wire. Before filtering takes place a bed of diatomaceous earth is built up on the supports, from a suspension in a tank 22 or from a slurry feeder 19 in conjunction with clean water from the tank 22, the suspension being circulated by a pump 17. The water to be filtered is supplied through a pipe 14 and the filtrate is discharged through a pipe 27 provided with a valve 29. To cleanse the filters the valve 29 is closed and the pump is run for a short time so that air is compressed in the upper parts B, D of both chambers. The pump valve 18 is then closed and valve 34 is opened to allow escape of air from the space B enabling the compressed air in space D to force filtered water back through the filters.
Patent GB-1046813-A (GB)
Title: Pressing and drying devices for corrugated board manufacturing equipment
Inventor: MATSUNAMI HIROSHI
IPC: B31F1/28
Filed: 1964-04-01
Abstract: 1,046,813. Laminates and laminating. NIWA MACHINERY CO. Ltd. April 1, 1964, No. 13465/64. Heading B5N. In apparatus for making doublefaced corrugated board i.e. corrugated board faced on both sides with flat sheet material, wherein the double-faced board is fed through the space defined by a row of heating plates 63 and an endless conveyer 64, a pressing and drying arrangement is included comprising a row of fluid chambers 75 open on their undersides arranged along the surface of the conveyer, and a blower for supplying fluid under pressure to the chambers whereby a constant pressure is applied uniformly to the upper surface of the corrugated board through the thickness of the conveyer belt. As shown, a flat liner fed over roll 60 and a heating roll 61 meets already formed singlefaced corrugated board to which glue has been applied passing over roller 62 and becomes glued thereto. The double-faced corrugated board is then guided between the heating plates 63 and conveyer 64. Air from a blower 79 is forced through a pipe 80 and then into the chamber 75 to apply uniform pressure to the corrugated board through the thickness of the conveyer which is of porous material. The air is discharged through spaces at the edge of the board into channels between the heating plates leading to ducts 84 into a main duet 85 and from there into a pipe 86 from which the air is returned to the blower through a valve 87. Elastic material 88 secured around the edges of each air chamber minimizes air leakage.
Patent GB-168835-A (GB)
Title: Improvements in the process for the extraction of glycerine from the waste liquors of alcoholic fermentation
IPC: C11D19/00
Filed: 1917-09-19
Abstract: In a process for treating waste liquors of alcoholic fermentation for the extraction of glycerine, the liquors are neutralized with lime or chalk, filtered, and boiled with ferric chloride, preferably under pressure, until the liquor no longer reacts with Fehling's solution. The iron is precipitated by lime, and then the lime by carbonic acid or sodium carbonate.  The resulting liquor is filtered, concentrated, and distilled.  In a modification, ferric sulphate is used instead of ferric chloride, the iron being then precipitated by baryta instead of lime.
Patent GB-804587-A (GB)
Title: Control means for liquid fuel injection pumps for internal combustion engines
Inventor: EVANS FRASER MACKIE
IPC: F02M59/44
Filed: 1956-05-02
Abstract: 804,587. Starting fuel injection engines. C.A.V., Ltd. April 23, 1957 [May 2, 1956], No. 13506/56. Class 7(3) A cam k pivotally mounted on a slidable push piece j is normally tilted so that a finger n contacts the end of the injection pump control bar c to limit the normal maximum fuel supply, a lope p on the cam being arranged to contact a step at the end of a groove q, when the push piece j is pressed inwards, to turn the cam to a position in which the finger n engages in a recess o in the control bar, whereby on release of the push piece j the bar c is permitted to move to an excess supply position for starting. The cam k has flats s, r co-operating with the base of the slot in the member i in which it is mounted, the loading spring t of the push piece j being arranged to return the cam to its normal tilted position when the control bar c moves to the left after starting. The initial position of cam k is set by adjustment of a sleeve h screwed on to the body member a and locked in position by a sleeve v having a non-circular opening cooperating with a non-circular portion of the push piece j. The body member a is also locked in position by a bent-over finger f engaging a recess g in the pump body. In a modification, the sleeve h is situated inside the body part a and carries the groove q in which the lobe p slides, the locking sleeve v being locked to the body part a.
Patent GB-722742-A (GB)
Title: Improvements in or relating to the preparation of moulds for use in metal foundry moulding
IPC: B22C23/00
Filed: 1952-05-28
Abstract: 722,742. Moulding processes. FORD MOTOR CO., Ltd. May 28, 1952 [June 2, 1951], No. 13574/52. Class 83 (1). [Also in Group V] A casting mould, Fig. 1, is made from a mixture of a resin and a refractory material, e.g. silica sand. The resin may be thermosetting, e.g. phenol aldehyde with a catalyst, e.g. triethanolamine, or thermoplastic. The mixture is compressed or injected between dies 10, 11 (see Group V). The amount of resin used is generally from 3 to 9 per cent of the mixture.
Patent GB-793492-A (GB)
Title: An improved process for the preparation of terephthalic acid
IPC: C07C51/41
Filed: 1956-05-03
Abstract: Terephthalic acid is obtained by heating salts of benzenecarboxylic acids at temperatures above 300 DEG  C., and separating the terephthalic acid by acidification.  The process is characterized in that, after the heat treatment, the reaction product is dissolved in water and the resulting solution, with or without filtering, is then acidified with the benzenecarboxylic acid, or its anhydride, serving as starting material and the terephthalic acid separated thereafter. After evaporation of the filtrate, the residue, if desired, after the addition of fresh starting materials, may be again subjected to the heat treatment. Suitable starting materials are the salts of benzoic acid, phthalic acid, hemimellitic acid, trimellitic acid, trimesic acid, mellophanic acid, prehnitic acid, pyromellitic acid, benzenepentacarboxylic acid and mellitic acid.  It is preferable to use the potassium salt, and in the case of polyvalent benzenecarboxylic acids some free carboxylic groups may be present. Mixtures of the salts with carbonates, hydroxides, formates or oxalates may also be used.  The process is preferably carried out by mixing the starting materials together thoroughly and heating to 370-410 DEG  C. at normal or increased pressure, e.g. 5-100 atmospheres.  Inert gases such as carbon dioxide may be present during the reaction and the reaction may be accelerated by means of a metal oxide as catalyst, e.g. iron, manganese, or cerium oxide. Solid inert substances, e.g. sand or metal turnings may also be raised with the starting materials which should preferably be dried at about 110 DEG  to 300 DEG  C. before use. The terephalic acid is isolated from the reaction mixture by treating the mixture with water preferably with heating, if necessary separating undissolved substances such as catalysts and then neutralizing the solution or bringing it to a weakly acid pH with the benzenecarboxylic acid used as starting material.  The precipitated terephthalic acid is filtered and may be esterified directly.  The precipitation and filtration are preferably carried out under carbon dioxide pressure, e.g. 20-50 atmospheres. Examples are given, using dipotassium phthalate and phthalic anhydride; potassium benzoate and benzoic acid; a benzene polycarboxylic acid mixture and potassium hydroxide. Specifications 744,721, 747,204 and 777,497 are referred to.
Patent GB-136829-A (GB)
IPC: C05F11/00
Abstract: 136,829. Grinnell, A. J., (formerly Grinberg, A. J.)., and Field, B. April 27, 1917, [Convention date]. Manures.-Acid-producing bacteria having a denitrifying action such as bacillus coli are added to a mixture of bran, sawdust, corn starch, and ammonium carbonate with water, and the culture obtained is used for treating humus or other organic matter, which, if acid has been previously neutralized. Powdered phosphatic slag and potash feldspar are added, and the whole is allowed to ferment. The Specification as open to inspection under Sect. 91 (3) (a) mentions also the bacillus vulgatus as a suitable bacterium. This subject-matter does not appear in the Specification as accepted.
Patent GB-327041-A (GB)
Title: Improvements in or relating to arrangements for starting motor converters
IPC: H02K47/04
Filed: 1929-05-02
Abstract: 327,041. Peebles & Co., Ltd., B., and Henderson, G. May 2, 1929. Synchronizing dynamo-electric machines.-An arrangement for starting a motor converter comprises the combination with a non-inductive starting resistance connected across the rotor phases and a choke coil which is inserted across two or more of the rotor phases as synchronous speed is approached, of a field regulator associated with a switch which inserts the choke coil so that the field resistance is decreased during starting but increased to normal value when the switch is operated to insert the choke coil. At the moment of starting switches D and F are open. The switch F which controls the insertion of the choke coil E is fitted with two auxiliary contacts F<1> connected to the points H<2>, H<3> on the shunt field control resistance H and shorted when the switch F is open so that at starting the part of the field resistance between H<2> and H<3> is shorted and the field builds up quickly. When normal running voltage is indicated by the voltmeter K connected to the direct current conductors J, J<1> the switch F is closed to insert the choke coil E across two of the phases and open the circuit of the contacts F' so that the resistance in the field circuit is increased and the field excitation reduced to the normal running value. When synchronism is reached, indicated by an A.C. voltmeter L connected across one of the star-connected resistances C remaining steady at a value near zero, the switch D is closed to short the resistances B, B', B<2>; the slip rings can then be directly shorted by the switch B<3> mounted on the bearing A<2> of the machine. An interlocking arrangement M<1>, N<1> is provided between the switches F and D so that the switch F cannot be opened and alter the field resistance when the synchronizing switch D is closed. Figs. 2, 3 (not shown) give two alternative forms of switch controlled starting resistances having a low value for the initial starting period and a higher value for the synchronizing period. Specification 215,189, [Class 38 (ii), Electric currents, Converting &c.], is referred to.
Patent GB-458014-A (GB)
Title: Ecraseur for use in performing embryotomies
IPC: A61D1/08
Filed: 1936-05-14
Abstract: 458,014. Appliances for animal obstetrics. PROVOST, P. F., Ecommoy, Sarthe, France. May 14, 1936, No. 13721. Convention date, June 3, 1935. [Class 81 (ii)] In an ecraseur for performing embryotomies on large animals comprising a severing cable T, a tubular guide 11 therefor and a drum 4 onto which the cable is wound, the drum is driven through a worm 3 and worm wheel 5. One end of the cable, which may have a tensile strength of 1500 kgs. is attached to a pin 13 on the drum and the other end to a pin 6 on the cage 8 housing the drum. The cage is provided with a removable handle 2 in order that the device may be supported when the removable crank 1 is turned. The worm wheel 3 is fixed to a removable shaft 10 by a grub screw 7, so that upon slacking this, the drum may be turned independently of the worm drive. The shape of the guide 12 is shown in Fig. 4. The instrument may be used for rectifying the position of a foetus, the cable being fixed to a limb thereof.