baber/WOPTO huggingface dataset:
Patent GB-371475-A (GB)
Title: Improvements in or relating to the manufacture of linoleum or like material
IPC: D06N7/00
Filed: 1931-01-28
Abstract: 371,475. Inlaid linoleum. LINOLEUM MANUFACTURING CO., Ltd. and GODFREY, A. A., 6, Old Bailey, London. Jan. 28, 1931, No. 2812. Addition to 316,646, [Class 140, Waterproof &c. fabrics]. [Class 140.] The method of providing the edges of linoleum or like material with a line of material resembling mortar &c. described in the parent Specification is modified by using paper or tape as a separating material between the layers of linoleum composition instead of thin metal or other hard material. The paper &c. is preferably of the same width as the linoleum layers. In unrolling the assembly, a knife is preferably provided to cut through the sheet of composition which has been pressed on to the edges of the roll. Two sheets of paper may be used. The strip of linoleum 1, Fig. 1, is wound into a roll with a strip of paper 2 separating the layers, and a sheet of composition pressed on to each side of the roll. The roll is then unwound, the linoleum being rolled up again, and the paper passing on to a roll 4, the second web of paper if used, passing to a roll 5. The material representing mortar is left as an edging on the linoleum strip. To facilitate the. separation, a knife 6, Fig. 2, mounted on guides 7 so that it can follow the linoleum as the diameter of the roll decreases, is preferably provided. Circular rotating knives may be used. The method may also be used with superposed pieces of linoleum as described in the parent Specification.
Patent GB-934915-A (GB)
Title: Improvements in or relating to clamps for use in tubular scaffolds and like structures
IPC: E04G7/02
Filed: 1962-01-25
Abstract: 934,915. Clamps. GEORGES HAEMMER -  LIN S.A. Jan. 25, 1962 [Sept. 7, 1961], No. 2822/62. Class 44. A clamp for tubular scaffolds comprises a carrier member 1 which is adapted to carry a horizontal member secured therein by a screw 4 and has a downwardly-directed dovetailed groove for gripping a clamping band 7 about a vertical member 2. The carrier member may have three such grooves, as in Fig. 5, or may be in the form of a triple channeled member 21, Fig. 6, to carry tubes at right angles to each other. Another embodiment, with regard to Fig. 7, in which one part 27 is rotatable with regard to the other part to enable a tube to be supported at other than horizontal. Still another embodiment is shown, Fig. 8, having a projection 30 for receiving a tube 31 thereon.
Patent GB-1487643-A (GB)
Title: Means for supplying an electrical load with direct voltage pulses
IPC: H02M3/135
Filed: 1975-01-23
Abstract: 1487643 Control of D.C. motors ASEA AB 23 Jan 1975 [24 Jan 1974] 2925/75 Heading H2J In a supply circuit for a D.C. load, such as a D.C. motor, pulses of variable frequency are supplied to said load from a generator switchable between a low frequency mode in which pulses are delivered in groups of two pulses with a constant time interval T1, and a higher frequency mode in which pulsing is continuous, the change over from the low frequency mode to the higher frequency mode taking place when the group frequency has a value K/2T1 where 0À5<K<1 and where T1 is the time interval between two pulses of each group. When applied to electric traction, this arrangement minimizes interference with track circuit signalling systems operating at a frequency 1/2T1, e.g. 75 Hz. Fig. 2 (not shown) relates to a known thyristor chopper with a thyristor commutating circuit arranged to supply pulses to a D.C. motor having a free-wheeling diode. The thyristor chopper is triggered by an OR circuit E, Fig. 3. When it is desired to start the motor, the setting of resistor R1 is increased and a 1 supplied to integrators I3, I4 at a time t1, I3 triggers a threshold flip-flop N3 which holds I4 reset. At time t2, I1 triggers N1, initiating a pulse from E which lasts for 20-30 microseconds as determined by a time delay FD. This action sets flip-flop B1 and, at time I4, I2 triggers N2 so as to initiate a second pulse from E. I1 and I2 are again reset so as to generate a further pulse pair at t6, t7. If R1 is further increased so as to be likely to generate a frequency in the region of the signalling frequency, a further pulse will be produced at t10 from N1 before I2 has time to ramp up sufficiently to trigger N2. Single pulses are thus generated. Up to a frequency of 500 Hz, any further increase in motor current is produced by increase of pulse duration. The change over from pulse groups to continuous pulsing is preferably done when the fundamental is 55 Hz, the single pulse fundamental frequency then being 110 Hz. If hysteresis is introduced into the system so that on reducing the frequency the mode switching is done at 87 Hz, the fundamental changes to 43À5 Hz. A plurality of such choppers may be connected to a parallel arrangement of motors or they may each supply an individual motor in a train. The choppers are then triggered sequentially.
Patent GB-869710-A (GB)
Title: Improvements in or relating to radiation detectors
Inventor: DALY EDGAR FRANK
IPC: G01J5/12
Filed: 1959-01-27
Abstract: 869,710. Semi-conductor devices. UNICAM INSTRUMENTS Ltd. Jan. 19, 1960 [Jan. 27, 1959], No. 2978/59. Class 37. A radiation detector has a first electricallyconducting radiationabsorbing film spaced by an insulating sheet from a second electrically-conducting film forming part of a thermocouple or bolometer. Fig. 1 shows a thermocouple which consists of a gold film 4 in contact with welded joints 6, 7 of thermoelectric material and supported by a thin insulating sheet 2. On the other side of the insulating sheet is a radiation-absorbing film of aluminium, gold, nickel, bismuth, selenium or tellurium. The separation of the absorbing film from the thermocouple proper enables the film to have a surface roughness appropriate to the wavelength of the radiation to be absorbed without its thickness, which necessarily becomes large in the case of long wavelengths, affecting the thermal capacity of the thermocouple. Fig. 3 shows a bolometer in which the radiationabsorbing element is a film 13 of gold or nickel evaporated on to a collodion or "Formvar" (Registered Trade Mark) support. The resistive film 14 on the other side of the insulating support is connected to wire 16 by electrodes 15 formed by metal deposits.
Patent GB-372762-A (GB)
Title: Improvements in washing-machines
IPC: D06F17/00
Filed: 1931-01-30
Abstract: <PICT:0372762/IV/1> A washing machine also suitable for dyeing &c. is provided with means for causing a flow of the treating liquid in opposite directions alternately through the articles to be treated and comprises a receptacle having double walls 13, 18, a perforated bottom 20 and a cylindrical casing 19 in which a perforated piston 24 is reciprocated by a motor 27.  The liquid beneath the piston on its downward stroke is forced up between the double walls and out through orifices 23 into the container thus maintaining a circulation. Reference has been directed by the Comptroller to Specifications 18115/89, [Class 15, Bleaching &c.], 2689/15, [Class 138 (ii), Washing, mangling, &c.], 9372/15, 270,307, and 329,526, [all in Class 15 (i), Dyeing &c., Apparatus for].
Patent GB-469618-A (GB)
Title: Improvements in carrying out reactions of oxides of carbon with hydrogen
IPC: C07C1/04
Filed: 1936-02-03
Abstract: In the conversion of oxides of carbon with hydrogen, particularly for the production of hydrocarbons or their oxygenated derivatives, wet steam is used as an indirect heat-exchange medium for regulating the temperature.  The steam should contain up to 40 per cent of liquid water and it may be used at a pressure at which the temperature of dry steam is slightly below the reaction temperature.  If the heat evolved is more than sufficient to dry the steam supplied, water may be sprayed into the cooling chamber to maintain the moist condition.
Patent GB-477495-A (GB)
Title: Improvements in or relating to steam generators for heating apparatus
IPC: B64D13/08
Filed: 1937-02-04
Abstract: 477,495. Ventilating aircraft. POLLAK, J. E. (Vapor Car Heating Co., Inc.) Feb. 4, 1937, No. 3380. [Class 137] [Also in Group XIII] A steam heating system particularly for use in aeroplanes comprises a radiator 6 in one of a pair of air conduits 1, 2, discharging through outlets 7, 9 into a main duct 3 leading to the space to be heated. The conduits 1, 2 have auxiliary outlets 8, 10 to the outer air, alternatively closable by swinging vanes 11, 13 respectively and operated by a reversible motor 15, the outlets 7, 9 being similarly regulated by the vanes so that any proportion of heated and unheated air may be delivered.
Patent GB-803610-A (GB)
Title: Improvements in electrically-driven clippers for hair, fibres and the like
Inventor: CRYER ERNEST CHARLES
IPC: B26B19/44
Filed: 1957-01-31
Abstract: 803,610. Trimming fabrics. HORSTMAN, Ltd. March 15, 1957 [Jan. 31, 1957], No. 3385/57. Class 42 (1). [Also in Croup XIV] A clipper for hair, textile fabrics, &c., comprises a hollow body 1, housing an electric motor which reciprocates an upper cutter 5 relatively to a fixed lower cutter 6, and a hair &c. evacuation duct 15 leading from the cutters to a remote suction device, the hollow body being open-topped and the duct being formed by spaced outer and inner covers 8, 7 for the body. The cover 8 has a nozzle 13, to receive a suction pipe, and side and rear edges screwed down on the edges of the body sandwiching side and end flanges 9, 10 of the cover 7. The front ends of the covers are shaped to form a transversely elongated mouth spaced a short distance from the cutters. Specification 596,754, [Group XIV], is referred to.
Patent GB-733944-A (GB)
Title: Improvements in and relating to contact assemblies for electric switches
Inventor: WILSON JOHN THOMAS
IPC: H01H19/10
Filed: 1953-02-06
Abstract: 733,944. Switch contacts. ENGLISH ELECTRIC CO., Ltd. Feb. 5, 1954 [Feb. 6, 1953], No. 3407/53. Class 38 (5). A U-shaped switch contact is secured to an insulating bar by a clamp which presses an edge of the contact against a surface of the bar. The clamp consists of a rod 3 received in apertures in the two arms 2a, 2b of the contact 2 and is fixed to the bar 1 by screws 4. A collar 5 on the rod 3 bears against the surface of the bar to prevent bending of the rod. The contact is adjustable along the rod to an extent governed by engagement of the arms 2a, 2b with the screws 4.
Patent GB-984772-A (GB)
Title: Method of spot welding light metals and alloys thereof
IPC: B23K11/16
Filed: 1962-01-30
Abstract: 984,772. Welding by pressure. SHIN MITSUBISHI JUKOGYO KABUSHIKIKAISHA. Jan. 30, 1962 [Jan. 30, 19611, No. 3421/62. Heading B3R. In spot welding members of light metal or light metal alloy a momentary force is applied to at least one of the members to be joined to crack or scratch the oxide films thereon and welding current is passed through the members and cracked or scratched films. Two non- pickled aluminium alloy plates clad with aluminium are overlapped and the electrodes are brought into impact contact therewith to crack the oxide films before spot welding. In another embodiment the sheets are pinched between electrodes and the lower end of one electrode holder is struck by a wooden hammer to move the electrode backwards and forwards thus cracking the oxide films, before spot welding. One electrode may be dropped on to the sheets to effect cracking of the films. Aluminium, magnesium and their alloys are mentioned.
Patent GB-668173-A (GB)
Title: Improvements in or relating to miniature telephone receivers
Inventor: ASHTON JOSEPH PHILIP
IPC: H04R11/06
Filed: 1949-02-08
Abstract: 668,173. Receivers. AMPLIVOX, Ltd. Jan. 16, 1950 [Feb. 8, 1949], No. 3460/49. Class 40 (iv). In a miniature telephone or deaf-aid receiver, having a diaphragm with the operating surface area A of each face not exceeding half a square inch, the volume in cubic inches of partially or wholly enclosed air chambers adjacent to each diaphragm face lies between the limits A/8 and A/100 with a preferred value of A/40. As shown, a deaf-aid receiver comprises a cellulose acetate main case 14 and a front cover 15.of " Duralumin " (Registered Trade Mark), which house an annular brass member 9 having a knife edge 9b against which a spring-steel diaphragm 10 carrying a nickel-iron armature 11 is held by magnetic attraction of a ring magnet 4. This magnet and a nickel-iron core member 1 are secured to the annular member 9 by solder joints 5, 13 which are of different melting-point solders so that adjustments during assembly are facilitated. The core member carries a high-resistance coil 3 which is wound on a polystyrene former 2 and also supports a socket member 6 provided with connection pins 7 for a plug 8. The rear air chamber 12 may be completely enclosed or may be connected to a further space through holes 9a which function as acoustic resistances. The sound orifice 15a at the front of the diaphragm may also be augmented by further small holes.
Patent GB-130907-A (GB)
Title: Improvements in Lifting-dogs.
Inventor: FRANCIS PATRICK
IPC: B66C1/64
Filed: 1919-02-13
Abstract: 130,907. Francis, P. Feb. 13, 1919. Lifting-dogs.-A lifting-dog for lifting plates has a recess A in the body B for receiving the edge of the plate which is secured in position by a rightangled projection p on the shackle C. By reversing the shackle, a plate liable to bend can be lifted in a vertical position by means of a second gripping projection pl.
Patent GB-193392-A (GB)
Title: Travelling track device with pneumatic suspension
IPC: B62D55/112
Filed: 1923-02-06
Abstract: 193,392. Compagnie des Forges et AciÚries de la Marine et d'HomÚ- court. Feb. 16, 1922, [Convention date]. Pneumatic springs for endless-track vehicles consist of a piston 11 and cylinder 8 secured to box-members 5 carried by the upper part 1 of the supporting-frame and surrounded by a tube 20 sliding in the lower part 2 of the frame and engaging a ring 21 which bears through a spring 22 against a bar 16 provided on the piston and carrying rollers 17 which engage slots in the part 2. The cylinders are connected by a pipe 7 so that all the cylinders on one or both sides are at the same pressure. Gate-valves may be used to divide the cylinders into groups so as to localize any leakage. The initial pressure may be maintained bv a pump driven from the vehicle engine.
Patent GB-401261-A (GB)
Title: New depilatory substance
IPC: C14C1/06
Filed: 1932-02-06
Abstract: 401,261. Removing superfluous hair. HUGHES, M., Blaksod, Ballina, Co. Mayo, BYRNE, G. T., Ardclare, Strand Road, Merrion, Dublin, and STRONG, R. G., 19, Rostrevor Road, Rathgar, Dublin, both in the Irish Free State. Feb. 6, 1932, No. 3602. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 22, 1932]. [Class 131.] A liquid depilatory is prepared from fish, preferably pollack or coal fish, by curing with salt for 7 to 10 days, washing, drying, cutting into lengths, hanging in a cool place, and collecting the liquid which exudes.
Patent GB-213229-A (GB)
IPC: H01R24/58
Filed: 1924-02-12
Abstract: 213,229. Pacent Electric Co., Inc., (Assignees of Pacent. L. G.). March 20, 1923, [Convention date]. Jacks.-To enable telephone leads provided with pin contacts to be connected to a telephone jack socket a telephone plug element 2, 3 is provided with resilient members 6, 7 in contact with the respective plug members. The members 6, 7 normally take the form shown in Fig. 4 and the pin ends 8 of the leads may then be inserted in apertures in the resilient members. The parts are then brought to the position shown in Fig. 3 and identical handle elements 9 are secured about them by a single screw. The pin ends are housed in grooves in the handle-elements and cannot be withdrawn since an attempt serves only to increase the spring grip of the members 6, 7.
Patent GB-435240-A (GB)
Title: Improvements in compositions for fireproofing fabrics
IPC: D06M15/423
Filed: 1934-04-03
Abstract: 435,240. Fireproofing fabrics. KINDERMANN, (nÚe HUESMANN), G., Radlitz, Post Steinau, Germany. April 3, 1934, No. 3832/35. Convention date, Aug. 4, 1933. Divided out of 429,857, under which a Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 2, 1934. [Class 140] A composition for fireproofing fabrics, e.g. for use in the electrically heated cushions described in Specification 429,857, consists of an aqueous solution of ammonium sulphate, ammonium chloride, boric acid, and borax to which is added a small quantity of a ureaformaldehyde condensation product.
Patent GB-1511215-A (GB)
Title: Marine wet exhaust system and powered marine vessel
IPC: F01N13/12
Filed: 1977-01-31
Abstract: 1511215 Silencing and cooling exhaust gases WHITTAKER CORP 31 Jan 1977 [5 May 1976] 03886/77 Heading FIB [Also in Division B7]  A marine exhaust system comprises an exhaust gas-cooling water separation chamber 22, a gas collection chamber 56, a gas accelerating chamber 140, Fig.8, and a gas flow-shaping conduit 150. The chamber 22 is provided with a water deflecting baffle 34 in front of the gas exit and a gas dam 48 in the water exit. The chamber 140 tapers downsteam and may be divided into a number of channels provided with a valve 148 and air insertion tubes 160 for diluting the exhaust gas.
Patent GB-739427-A (GB)
Title: Curved glazing sheets and processes and apparatus for their manufacture
IPC: C03B23/031
Filed: 1954-02-10
Abstract: 739,427. Tempering glass sheets. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY & CIREY. Feb. 10, 1954 [Feb. 12, 1953], No. 3947/54. Drawings to Specification. Class 56. In the manufacture of tempered curved glass sheets having one or more portions less tempered or not tempered at all, in particular for vehicle windscreens, the flat glass sheet is uniformly heated over its whole area to the softening temperature and is then curved, e.g. by sagging on to an appropriately shaped former or by engagement between concave and convex shaping members. The parts to be less or not tempered are then masked on both faces by removable screens while the sheet retains all or part of the heat received for the curving and the remainder is then tempered by adjusting the heating and/or cooling so that the masked parts are at a temperature not greater than that of the surrounding zone when the latter congeals during the cooling. Two main forms of apparatus are described. In one, after the glass has been curved without the masks, it is cooled (e.g. by exposure to air) substantially to congealing point, the masks are then applied, the sheet reheated, and then subjected to rapid cooling to temper the non-masked portion. In the other, after the sheet has been curved without the masks, cooling screens are placed over the parts to be less or untempered and the temperature of the remaining portion of the sheet is maintained until after the screened portions have cooled sufficiently whereupon the unscreened portion is tempered by rapid cooling. In both forms the screens may be left in masking position during the final rapid cooling. In the first form, after the sheet has been curved and the masks applied, before the assembly is passed to the rapid cooler it may again pass through the shaping members, or between auxiliary shaping members, to correct any irregularities in the shape that may have occurred during the end portion of the heating. Specification 704,312 is referred to.
Patent GB-450134-A (GB)
Title: Improvements in or relating to comminuted fuel mixing and feeding apparatus
IPC: F23K3/00
Filed: 1936-02-10
Abstract: 450,134. Pneumatic conveyers; hoppers. PORTEOUS, W. J., 512, 7th Street, Saginaw, Michigan, U.S.A. Feb. 10, 1936, No. 4014. [Class 78 (i)] A comminuted fuel mixing and feeding device comprises a blower 1 having its discharge 4 arranged to direct a mixture of fuel and air into a combustion chamber, a conduit 5 leading downwardly from a hopper 10 and directing air and fuel into the intake of said blower, and a rotary valve 11, for adjustably regulating and maintaining a constant flow of fuel from the hopper. The valve 11 is mounted on a rotary spindle 12, and is provided with spiral fins 34 and with arms 35, 36 to feed the fuel downwards and to agitate it, respectively. The lower end 18, Fig. 3, of the spindle 12 is squared and slidably engages a socket in the hub of a gear 20 which is driven by the motor actuating the blower. The spindle is moved up and down to vary the size of the outlet from the hopper by a lever 29 which is adjusted by a screw 33. A guard 13 surrounds the spindle. A cup 37 surrounding the central boss of the gear 20 is filled with lubricant which is fed through a hole 38. The bottom of the gear casing is sloped slightly upwards to the centre in order that lubricant may spread over it.
Patent GB-942657-A (GB)
Title: Improved reflecting material
IPC: G02B5/128
Filed: 1960-02-04
Abstract: Indigo blue glass beads having a refractive index of about 1.9 consist, in mols. per cent, of 3.55% B2O3, 38.41% TiO2, 22.92% SiO2, 12.63% Na2O, 1.47% K2O, 18.42% BaO, and 2.60% CoO. Specifications 940,297 and 940,424 are referred to.ALSO:In the manufacture of reflex reflecting sheets (see Division G2) rigid particles, as of crushed greystone rock, are bonded to a backing layer as of polyethylene terephthalate, laminates or treated cloths such as resin impregnated cotton drill cloth, by bonding material in the form of a curable or thermo-setting resin which is nonbrittle and water insoluble.  Such a resin may be obtained from a solution consisting of 30 parts epoxy resin, 70 parts of an epoxy reactive curing agent and sufficient methyl isobutyl ketone to dilute the mixture to about 90% solids. The epoxy resin may be a liquid diglycidyl ether of bis (4-hydroxy phenyl) dimethylmethane.  The curing agent may be a polyamide resin formed by condensing a dimerized or trimerized vegetable oil unsaturated fatty acid and an aryl or alkyl polyamine.  To the top and side surfaces of the crushed rock particles are bonded glass beads, the bond being formed by a sprayed mixture consisting of 50 parts of the above mentioned curing agent, 25 parts of the above mentioned epoxy resin, 25 parts of some other epoxy resin and 5 parts of phthalocyanine blue pigment, the mixture being diluted with methyl ethyl ketone to approximately 50% solids. Specifications 940,297 and 940,424 are referred to.ALSO:Glass beads are silver coated by adding 300 parts by weight of beads to about 1200 parts of water containing 12 parts of silver nitrate in a stainless steel mixing vessel.  While stirring the mixture, 20 parts of a 28% solution of ammonium hydroxide is added, and after allowing the mixture to stand for one minute 10 parts of dextrose in 32 parts of water are added, such addition being followed immediately by the addition of a solution of about 6 parts of potassium hydroxide in 32 parts of water.  The reaction is allowed to proceed for about five minutes, the beads being stirred or agitated during this time.  The beads so coated are then washed with fresh water and rinsed with acetone, and then dried at about 300  DEG F.  Such beads are then stuck to the top and side surfaces of protuberances forming part of a reflex reflector (Division G2) and finally the beaded surface is dipped into an etching solution consisting of about 25 parts potassium dicromate, 92 parts of sulphuric acid and 3000 parts of water, so as to remove the silver coating from the projecting surfaces of the beads. Specifications 940,297 and 940,424 are referred to.