baber/WOPTO huggingface dataset:
Patent GB-788857-A (GB)
Title: Improvements relating to pivoted flatiron handles
IPC: D06F75/34
Filed: 1954-07-21
Abstract: 788,857. Hand irons. GENERAL ELECTRIC CO. July 21, 1954 [July 23, 1953], No. 21281/54. Class 138 (2). A stowable handle 8 on a hand iron is pivoted at its rear end to a bracket 12 which projects into the hollow end of the handle, a spring- pressed latch-plate 22 pivoted on the bottom edge of an aperture 21 in the bracket 12 holding the handle in a raised working position. The bracket 12 has two side walls and a front wall 11 apertured at 21. The latch-plate 22 is slotted to pivot loosely over the bottom edge of the aperture 21 and is pressed by a spring arm 27 into a forward position with tongues 24 bearing against the rear side of the upper edge of the aperture 21. In the stowed position, Fig. 2, a ledge 19 of the handle 8 rests against the latch-plate and is held in this position by a spring 30 in the rear of the cover 7. When the handle is raised to the working position the ledge 19 rises above the top edge of the latchplate which is deflected and snaps beneath the ledge 19 to latch the handle. To release the latch the plate 22 is pushed inwards. When latched, two spring arms 28 bear against the inner surface 18 of the handle 8 to take up slackness in the pivots. The latch-plate may be removed from the aperture 21 by sliding the plate upwards in the aperture. Specification 666,326 is referred to.
Patent GB-238907-A (GB)
Title: Improvements in and relating to electric circuit-breaker systems
IPC: H02H3/06
Filed: 1925-08-25
Abstract: 238,907. British Thomson-Houston Co., Ltd., (Assignees of Anderson, A. E.). Aug. 25, 1924, [Convention date]. Electric cut-out arrangements.-In an automatically-reclosing circuit-breaker system in which a circuit breaker 1 connects together two sections 2, 3 which may be independently energized the circuit-breaker is provided with a closing coil 4 which is de-energized on the passage of excessive current through an overload relay 5 and the reclosing of the circuitbreaker is controlled by a differential relay 6 which operates in conjunction with voltage relays 11, 12 to reconnect the circuits when, the resistance of the faulty feeder has risen to a predetermined value. The reclosing relays are brought into operation by contacts on the circuit breaker. The relay 6 has a retaining coil 8 connected between the sound line or lines and earth by time-lag voltage relays 11, 12, the arrangement being such that when the current passing thrugh the resistor 10 has dropped to a safe value the coil 9 preponderates over the coil 8 and a return spring and closes at contacts 17 the circuit of the circuit-breaker closing coil 4. To prevent the sections 2 and 3 being directly connected in case both voltage relays operate when the circuit-breaker opens, a high resistance 14 is provided which is connected between the lines through both pairs of relay contacts, this resistance being connected in series with coils 9 on operation of the relay 11. The circuitbreaker 1 closing completes a maintaining circuit for the coil 4. In a modification the retaining coil 8 may be connected across points on the resistor 10 other than its extremities. Specifications 207,549 and 222,830 are referred to.
Patent GB-1472128-A (GB)
Title: Well bore force-measuring apparatus
IPC: E21B47/00
Filed: 1974-05-14
Abstract: 1472128 Measuring drill-string load SCHLUMBERGER Ltd 14 May 1974 [14 May 1973] 21388/74 Heading G1N Apparatus for sensing axial and torsional loading of a drill string carrying a drill bit includes a load-bearing tubular body 28 with end couplings 29, 30 for the string, and a load-responsive member 34 arranged between upper and lower sleeves 37, 38 and bearing strain gauges 57-64 connected in a first bridge circuit (88), Fig. 5 (not shown) to provide a measure of axial load, and strain gauges 69-76 connected in a second bridge circuit (89) to provide a measure of torque. As shown in Fig. 4B, applied torque causes relative twisting of the sleeves thereby deforming the strips or links 55, 56 joining rings 51, 52 of the member 34 which links bear the strain gauges 69-76, half arranged to sense compression and the others to sense tension. Axial loading causes flattening of the rings 51, 52 with proportional stressing of the regions around the holes 53, 54 which is sensed by tension-responsive strain gauges 57-60 and compression-responsive strain gauges 61-64.
Patent GB-1315205-A (GB)
Title: Methods and apparatus for producing hollow articles of thermo plastic material
IPC: B29C49/64
Filed: 1970-05-05
Abstract: 1315205 Injection blow moulding S FISCHER 5 May 1970 [8 May 1969 21 July 1969] 21507/70 Heading B5A In an injection-blow-moulding process, the injection mould and core are both cooled so that the preform is dimensionally stable for transfer to the blow-mould, the preform undergoing temperature-equalization before blow-moulding by means of heat-exchange devices so that material within the preform cools by heat transfer to the surfaces thereof until the required temperature distribution in the preform for blowmoulding is achieved. As shown in Fig. 2, preform 27 is formed in cooled injection mould 22 on a cooled core (not shown) carried by plate 24. After cooling, core plate 24 is retracted by jack 26 and the preform 27 drops through shoot 30 and is guided on to one of a number of mandrels 32 on turntable 33. Preform 27 is conveyed through heating and cooling apparatus 34 to between blow mould halves 35, after closing of which, mandrel 32 co-operates with device 37 to act as a blowing mandrel. In an alternative arrangement (Fig. 3, not shown) for use with P.V.C., the composition is preheated by passing it through a constriction (43) into the cooled injection mould (42), and after stripping from the injection core, the preform is pushed by rod (47) into the shoot (48).
Patent GB-534213-A (GB)
Title: Improvements in or relating to multiplex signalling systems
IPC: H04J3/04
Filed: 1939-07-25
Abstract: 534,213. Multiplex transmission. ELECTRICAL RESEARCH PRODUCTS, Inc. July 25, 1939, No. 21531. Convention date, July 26, 1938. Drawings to Specification. [Class 40 (iv)] In a mechanical or electronic distributer system the duration of the actual sampling time is such a proportion of the time allotted to each channel, e.g. one-fourth, and the frequencies which the system is capable of transmitting are such that the resulting currents are equivalent to the side-bands of a succession of harmonically related carrier waves of substantially equal amplitude. By this means interference between channels is avoided. Where the number N of channels is even, the wave transmitted comprises N/2 successive odd harmonics of half the sampling frequency and where it is odd the wave includes (N-1)/2 successive even and odd harmonics of the sampling frequency.
Patent GB-324375-A (GB)
Title: Improvements in or relating to the production of reversible latex compositions
IPC: C08C1/12
Filed: 1928-07-26
Abstract: 324,375. Dunlop Rubber Co., Ltd., Murphy, E. A., and Twiss, D. r. July 26, 1&28. Latex, treating.-Reversible pastes are obtained by adding non-coagulating hygroscopic substances such as polyhydric alcohols or their derivatives, as glycerol, glycol, diethylene glycol, or alkyl esters as glycol monoethyl ether, and protective colloids, to rubber or like dispersions, and evaporating the water. Pastes containing 3 per cent or thereabouts of water can be thus obtained. Suitable colloids are soaps, as alkali oleates and ricinoleates, piperidine oleate; preferably water soluble colloids are employed as they can be removed subsequently by washing. The pastes may be rendered irreversible by kneading, moulding, calendering, extruding. &c., or by heat or treatment with coagulants or dehydrating agents. The stability of the pastes may be reduced by the addition, for example, of formaldehyde or calcium sulphate. The washing out of the colloid may also vulcanize the rubber if sulphur and an ultra-accelerator have been added. Specif¯cations 213,886 and 214,583 are referred to.
Patent GB-517529-A (GB)
Title: Improvements in or relating to cartons for rolls of sheet material
IPC: B65D83/08
Filed: 1938-07-21
Abstract: 517,529. Toilet ralls &a ROBINSON & SONS, Ltd., and LYONS, C. July 21, 1938, No. 21725. [Class 18] A carton containing a roll of toilet paper &c. 'suspended by two spring arms supported on a wall plate 1 engaging the ends of a cylindrical roller engaging within the paper roll, is made from the blank shown, apertured ends to take the roller being formed as shown and a delivery opening being formed by severing along the lines indicated on panel 2 to leave a flap hinged at the top.
Patent GB-439581-A (GB)
Title: Improvements in saucepans, frypans, kettles and like utensils
IPC: A47J27/00
Filed: 1934-07-25
Abstract: 439,581. Kettles, saucepans, &c. SANKEY & SONS, Ltd., J., and SANKEY, G. R., Albert Street, Bilston, Staffordshire. July 25, 1934, No. 21730. [Class 66] The bottom of a kettle, saucepan, &c., for use with an electric or other hot plate is formed with a plain circular pressed-up centre portion b which may project above the bottom as shown in Fig. 1 ; in the case of a saucepan or frying pan the projecting portion b<1> may be machined or ground away as shown in Fig. 3. The annular part C of the bottom is made accurately flat as by machining or grinding, performed either before or after the pressing operation. The bottom is preferably of thick metal, but the side wall may be of lesser thickness. Specifications 128,410, [Class 39 (iii)], and 410,237 are referred to.
Patent GB-692578-A (GB)
Title: Improvements in or relating to drape sheets for surgical use
IPC: A61B19/08
Filed: 1950-09-04
Abstract: 692,578. Packages. MINNESOTA MINING & MANUFACTURING CO. Sept. 4, 1950 [Sept. 13, 1949], No. 21734/50. Class 94(i) [Also in Group VI] A surgical drape sheet (see Group VI) is folded and enclosed within an inner, wrapper contained in an outer sealed envelope. As shown in Fig. ,1 an outer wrapper A has an integral end flap B which is folded over on to the body portion of the wrapper A and sealed in position by a strip of transparent adhesive tape C. The wrapper A encloses a similarly-formed inner wrapper D, Fig. 2, which in turn encloses the drape sheet E. The wrapper A may be of transparent or translucent material. The inner wrapper and drape sheet are sterilized before being packed in the outer wrapper.
Patent GB-734023-A (GB)
Title: Improvements in or relating to high speed pneumatic tires
IPC: B60C19/00
Filed: 1952-08-29
Abstract: 734,023. Pneumatic tyres. GOODRICH CO., B. F. Aug. 29, 1952 [Sept. 6, 1951], No. 21757/52. Class 144 (2). A high-speed pneumatic tyre suitable for aircraft landing wheels comprises the usual carcase portion 17 having the usual adjoining plies of bias-laid cord material extending from bead to bead and a tread portion, which should be of large radius of curvature, of rubber having embedded therein in spaced apart manner plies of cord material the outermost of which 20 lies adjacent the periphery of the tread 13 and the innermost of which 18 is spaced from the carcase plies, the elasticity of the tread portion being thereby varied in the radial direction across the section. The outer plies in the tread portion may be spaced at greater distances than the inner plies of the tread portion. The cords of the outer plies of the tread portion may lie at a lesser angle to the longitudinal direction of the tyre than the cords of the inner plies of the tread portion. Thus the cords in the plies 18, 19, 20, proceeding outwardly in the tread portion, lie at angles of 30 degrees, 25 degrees, and 20 degrees, while the cords of the carcase plies lie at 38 degrees. The outer plies 19, 20 are of decreasing width and the outermost ply 20 may extend into the ribs 14 of the tread and adjacent the grooves 15 thereof. The tyre may be tubeless and provided with sealing ribs 21 at the side of the bead portions.
Patent GB-1071510-A (GB)
Title: Production of catalysts for cracking gaseous hydrocarbons or vaporisable liquid hydrocarbons
Inventor: EBENHOECH FRANZ LUDWIG
IPC: B01J23/755
Filed: 1966-05-17
Abstract: A mixture of 80 cu. m. (S.T.P.) per hour of methane and 160 cu m. (S.T.P.) per hour of steam is passed through a vertical cylindrical cracking reactor at 800 DEG  C. containing 100 litres of catalyst prepared by shaping NiO and MgO, calcining at 1200 DEG  C. or more such that all or the major portion of NiO is combined as mixed crystals of NiO and MgO.  The cracked gas is cooled to room temperature, steam thereby being removed by condensation and the gaseous product has the composition CO2, 7%; CO, 15%; H2, 77%; CH4, 0.2%; and N2, 0.8%.ALSO:In the preparation of cracking catalysts, a mixture of NiO and MgO is shaped and then converted by calcination at a temperature of more than 1200 DEG C. into a form in which all or the major portion of the NiO is combined as mixed crystals of NiO and MgO. Additionally the catalysts may contain one or more of A12O3, SiO2 ZrO2, Fe2O3 and CaO.  Before use as cracking catalysts the compositions may be subjected to reduction.  Hollow catalysts in tablet form of specified size are described in Example 2.
Patent GB-474410-A (GB)
Title: Improvements in or relating to alloys
IPC: C22C1/00
Filed: 1936-08-08
Abstract: Elements other than tin are alloyed with lead by treating a bath of molten lead or lead alloy with a flux consisting of a lead halide and an oxide of the metal to be alloyed with the lead.  The oxide constituent of the flux may be in the form of an ore or residue or may be formed in situ by using compounds such as carbonates or nitrates, or lead antimonate, or mixtures such as silver chloride and lead oxide.  The reaction may be carried out in a non-oxidizing atmosphere.  The spent flux may be regenerated for reuse by reducing part of the contained oxides, or the flux, after removal from the bath, may be smelted direct.  The elements added to lead in this manner may include copper, silver, selenium, tellurium, bismuth, nickel, cadmium, arsenic, and antimony. Specification 465,764 is referred to.
Patent GB-405674-A (GB)
Title: Improvements in or relating to nut locking devices
IPC: F16B39/32
Filed: 1932-08-04
Abstract: 405,674. Locking nuts. BOITEL, A. F., 168, Kaiserallee, Wilmersdorf, Berlin. Aug. 4, 1932, No. 21927. [Class 89 (i).] A means for locking a nut comprises a pin a housed in a recess c in the nut and engaging the bolt. The pin is resiliently forced into engagement, being connected to a shank b<2> which is also connected to a shank b<1>. The recess c may be in the form of an isosceles triangle so that the locking member may be applied to either face of the nut. Fig. 8 shows a construction in which the shank b<2> is connected to a second shank b<1>. A second pin a<1> may be located in a slot c<1> and may act in the same or opposite direction as the pin a. The locking pins a or a<1> may be connected to the member b by means of a bridge piece i and shank b<1>, as shown in Fig. 11, or in a further modification the bridge piece may be replaced by an inclined strut. The shank on the outside of the nut may be bent at the bottom to prevent accidental removal. The device may be attached to the head of a bolt, in which case the recess c is formed in the bolt. Specification 401,766 is referred to.
Patent GB-786330-A (GB)
Title: Hose coupling with automatic re-sealing, for hoses of rubber or synthetic material
IPC: F16L33/01
Filed: 1956-07-16
Abstract: 786,330. Hose couplings. NEUE ARGUS GES. July 16, 1956 [April 25, 1956], No. 21935/56. Class 99(1). A hose coupling for hoses of rubber or synthetic material with a plaited wire or textile intermediate layer, in which the rubber or synthetic outer covering layer is removed from the end portion of the intermediate layer and the latter is held directly by projections on the inside of the hose socket, the end of the hose being gripped between this socket and a tapered nipple projecting into the hose, is characterized in that the nipple is constructed in the form of a piston nipple which is located inside a tubular nozzle screwed to the hose socket and is axially displaceable into the end of the hose by means of the fluid pressure so as automatically to re-seal the hose as the latter loses its elasticity. The outer covering layer may be of synthetic rubber or plastic material. The core 10 may be of rubber, synthetic rubber or plastic material.
Patent GB-385560-A (GB)
Title: Improvements in radio receiving circuits
IPC: H04B1/22
Filed: 1932-08-04
Abstract: 385,560. Valve circuits for wireless reception. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Aug. 4, 1932, No. 21944. Convention date, Aug. 18, 1931. [Classes 40 (iii) and 40 (v).] Two or more capacitatively coupled tuning- circuits I, II, Fig. 1, are used, and valves V2, D are coupled by a choke Sm resonating just above the longest wave to be received. When two wave bands are to be received, the choke is shunted by a condenser Cp on the lower wave band. To avoid switching, a coupling resistance R, Fig. 2, is shunted by two bye-passes comprising respectively a condenser C2 and an inductance L and a condenser C1 in series.
Patent GB-1111923-A (GB)
Title: Method of making elastic polyurethane filaments
IPC: C08G18/10
Filed: 1966-05-17
Abstract: 1,111,923. Making elastic polyurethane filaments. CROWN CHEMICAL CORPORATION. 17 May, 1966 [19 July, 1965], No. 21944/66. Heading B5B. Elastic filaments are made by wet spinning a liquid polyurethane prepolymer which is a reaction product of a polyester or a polyether having terminal alcoholic hydroxyl groups with an excess of a diisocyanate, preferably an aromatic diisocyanate, into a solution of 1-4- cyclohexane bis-(methylamine) in a solvent containing one or more hydroxyl groups in the molecule and maintained at a temperature within the range 60 to 125, preferably at 120 F. whereby the outer portions of the extruded streams of liquid prepolymer are solidified to form filaments the cores of which are still liquid. These filaments are then passed through a second coagulation bath having the same composition as the first, but maintained at a temperature within the range 212 to 250 F. whereby the liquid cores of the filaments are solidified. The concentration of the diamine in the coagulating baths is 15 to 90% by weight. The preferred solution used in the coagulating baths is water, but other compounds containing one or more hydroxyl groups in the molecule may be used, e.g. ethyl or isopropyl alcohol, propylene glycol and glycerol. The solid core filaments may be stretched while being passed through a chamber maintained at a temperature of 500 to 1000 F. or above.
Patent GB-1439351-A (GB)
Title: Capacitor
IPC: H01L27/04
Filed: 1973-05-09
Abstract: 1439351 Semi-conductor devices TEXAS INSTRUMENTS Inc 9 May 1973 [2 June 1972] 22035/73 Heading H1K One electrode of a capaoitive device comprises a portion of a semi-conductor substrate 2 having spaced parallel grooves whose side walls are substantially perpendicular to the substrate surface, the grooves providing increased effective surface area. The substrate material may be Si or GaAs, preferably P-type monocrystalline Si with its surface in the 110 plane or at a small angle thereto. The grooves may be formed by masking and etching using an orientation dependent etchant, e.g. 50% KOH, or using plasma or ion etching. Alternatively orientation dependent epitaxial growth may be employed. The capacitor may be completed by a grown or deposited layer 14 of SiO 2 , Si 3 N 4  or Ta 2 O 5 , the latter suitably formed by anodizing vapour deposited Ta, layer 14 preferably not filling the grooves, then a vapour deposited counter-electrode 15, e.g. Al, Ta or Mo. The grooves need not extend over the full width of the substrate (Fig. 5B, not shown) providing an arrangement suitable for contacts utilizing beam leads. P and B may be diffused into studs 14 between the grooves to decrease the resistance between contacts 20 and 20<SP>1</SP>. Studs 14 may moreover be formed so as to be less highly doped than the main portion of the substrate. In an alternative construction (Fig. 7A, not shown) a PN-junction capacitor is formed. Instead of dielectric layer 14 a moderately doped layer of opposite conductivity to substrate 2 is formed using P (for N-type conductivity) or B (for P-type). The capacitor may be operated with reverse or forward bias, and depending on the width of studs 14, depletion layers may meet to give a "pinch-off" effect. In a modification of the PN-junction capacitor (Fig. 7B, not shown) a less highly doped layer of the same conductivity type as the substrate is first epitaxially grown thereon, giving a lower resistance after "pinch-off" and a high Q. In a further modification (Fig. 7C, not shown) on a moderately doped, e.g. N-type substrate is deposited a conductive layer of, e.g. PtSi to form a Schottky diode. In a construction having both dielectric and PN-junction capacitance, dielectric material is formed on the walls and base of the grooves and a diffused layer on top of the studs. The capacitive device may form part of an integrated circuit as shown in Fig. 8, which illustrates a capacitor I, transistor II, inductor III and resistor IV with dielectric isolation. Alternatively (Fig. 9, not shown) diffusion isolation may be employed. The metal counter electrode may be discontinuous, e.g. in that it does not cover the base of the grooves, providing a plurality of capacitors which may be selectively interconnected either permanently, as by applying a metallized coating, or by switching between terminals to give a variable capacitor (Fig. 10, not shown). Alternatively, variation in capacitance may be achieved by a sliding contact (Fig. 11, not shown). Reference has been directed by the Comptroller to Specification 1,288,278.
Patent GB-726188-A (GB)
Title: Improvements relating to radiant heating apparatus
IPC: H05B3/00
Filed: 1952-09-02
Abstract: <PICT:0726188/III/1> <PICT:0726188/III/2> Polymerization apparatus with radiant heat units 1 consisting of rod form elements in trough-like reflectors 2 has a shield 5 comprising metal slats or shutters 6 hinged to each other by pins 7 carried by links 8 of endless chains 9 which shield can be drawn between the heating units 1 and the material being treated to prevent overheating should the conveyer become stationary.  In a modification (Fig. 6) flexible elements wound on drums 17, 18 carry the shield 5.
Patent GB-780953-A (GB)
Title: Improvements in or relating to electric calculating machines
IPC: G06F7/44
Filed: 1954-07-30
Abstract: 780,953. Digital electric calculating-apparatus. EL-RE-MA SOC. ANON. PER LO SFRUTTAMENTO DI BREVETTI. July 30, 1954 [July 31, 1953], No. 22259/54. Drawings to Specification. Class 106 (1). An electrical calculating machine comprises three groups of number-representing contacts and is characterized in that at least one group of contacts is controlled by polarized relays having three positions one of which being a rest position. The machine described forms part of the machine described in Specification 780,954. Specifications 732,636, [Group XXXVII], and 780,955 also are referred to.
Patent GB-1307741-A (GB)
Title: Pipe coupling and or sealing apparatus
Inventor: DEZSENTYI I
IPC: E03F3/06
Filed: 1970-05-08
Abstract: 1307741 Grippers for lifting pipes EPITESTUDOMANYI INTEZET 8 May 1970 [10 May 1969] 22332/70 Heading B8H [Also in Division F2] An apparatus for lifting pipes is inserted in a pipe, and, as shown, a hand wheel 9 is screwed on threads 8 and forces a disc 3 axially along a shaft 1 to compress a sealing ring 5 against a tapered surface 4 of a wedge 2 secured to the shaft and thus force the sealing ring radially outwards into sealing engagement with the inner wall of the pipe. A stirrup, shown on the right in the drawing, is provided on the shaft 1 to enable the pipe to be lifted, Fig. 6 (not shown), by means of a suitable lifting hook. The apparatus may alternatively be operated by pneumatic remote control, Fig. 1 (not shown), the space between the disk 3 and wedge 2 being connected to a low pressure source. The apparatus has further uses in sealing and coupling pipes (see Division F2).