baber/WOPTO huggingface dataset:
Patent GB-811185-A (GB)
Title: Improvements in or relating to colour photography
Inventor: MASON LESLIE FREDERICK ALFRED
IPC: G03C7/413
Filed: 1956-10-03
Abstract: 811,185. Photographic colour developmeat. ILFORD Ltd. July 29, 1957 [Oct. 3, 1956], No. 30156/56. Class 98(2) An exposed silver halide emulsion layer, especially one in a multilayer colour material comprising also one or more layer containing an unexposed and non- developable silver halides, is colour developed in an alkaline solution comprising an aromatic primary amino developing agent, a colour coupler, and a 3 - pyrazolidone developing agent. Hydroxylamine also may be present in the developer as described in Specification 805,174. The 3 - pyrazolidone may be one of those described in Specifications 542,502 and 757,271, and the primary amino developer may be N, N - diethyl p - phenylene diamine or 2 - amino - 5 - diethylamino toluene. Examples are given of developer compositions comprising 2 - amino - 5 - diethylamino toluene, 1 - phenyl - 3 - pyrazolidone hydroxylamine hydrochloride, sodium carbonate or sodium phosphate as alkali (with sodium hexametaphosphate when sodium carbonate is used) and, as colour coupler; 1 - hydroxy - 2 - naphthoyl - cyclohexamide, furoyl - acet - o - toluidine or 1 - p - nitrophenyl - 3 - methyl - 5 - pyrazolone. Specification 500,613 also is referred to.
Patent GB-853337-A (GB)
Title: Improvements relating to automatic bottom closures for centrifugal drums
IPC: B04B11/05
Filed: 1957-09-25
Abstract: 853,337. Centrifugal strainer separators. GUTEHOFFNUNGSHUTTE STERKRADE A.G. Sept. 25, 1957 [Oct. 27, 1956], No. 30156/57. Class 46. [Also in Group XXIX] A disc-like bottom closure 6 for a centrifugal drum 1 is made of rubber or the like, and has a thickness which decreases from the middle to the periphery, a number of radial ribs 8 and an annular bead 7 at or near the periphery. During centrifuging it is maintained closed by centrifugal force, but when the speed decreases to about 50 r.p.m. or less it opens to the position shown in full lines. It is bent down further, to the position shown in chain lines, by the residue 9 when the latter is removed by a plough or the like (not shown). The ribs 8 are preferably staggered in relation to ribs 4 which connect the hub 3 and rim 5 of the drum.
Patent GB-484309-A (GB)
Title: Improvements in and relating to sparking plugs for internal combustion engines
IPC: H01T13/46
Filed: 1936-11-05
Abstract: 484,309. Sparking-plugs. HALL. H. L. Nov. 5, 1936, No. 30178. [Class 7 (iv)] The sleeve 6, surrounding the insulation 5, and the plug body are made from metals having dissimilar coefficients of expansion, ensuring a gas-tight joint at working temperatures. The sleeve extends from a point adjacent the inner end of the body to or beyond the outer end of the gland nut. A sleeve 4 of copper is interposed between the mica insulation and the central electrode.
Patent GB-666380-A (GB)
Title: Manufacture of silica-magnesia catalyst
IPC: B01J21/14
Filed: 1949-11-24
Abstract: Silica-magnesia catalysts of improved attrition resistance and steam and thermal stability are obtained by preparing a silica-magnesia hydrogel by any known method and, after drying, treating the hydrogel in the presence of water at 100-200 DEG F for at least six hours. The catalysts are useful for cracking hydrocarbons and may be employed with the fluidized technique.
Patent GB-1486996-A (GB)
Title: Line tapping service valve
IPC: F16L41/04
Filed: 1975-07-18
Abstract: 1486996 Branch pipes J W MULLINS 18 July 1975 30194/75 Heading F2G A pipe-line tapping service valve comprises a tubular connector 14 received at a first bifurcated end 26 on to a pipe-line 16 and at a second end on to a first end of a housing 12 wherein a tubular core 30 housing a valve 42 is received; said core having at an end disposed adjacent the pipe-line a bevelled piercing tip 32, and an end cap 52 being effective upon being screw-threadedly engaged with the housing, in urging the tip 32 of the core to puncture the pipe-line; which end cap action is also effective in crimping a thin walled end 24 of the housing into sealing engagement with the core, and is checked upon sealing abutment of external shoulder 36 of the core with internal shoulder 20 in the housing. Preferably the tubular connector 14 is secured to the housing by brazing and to a copper pipe-line by crimping the ends 26 into embracing contact therewith. Alternatively the connector may be formed of copper of similar thickness to the pipe to facilitate soldering thereto. The tubular core 30 is formed preferably of hardened metal, and in an alternative embodiment differs in that the shoulder 36 is formed as a step, corresponding to a similar step formation in the housing interior.
Patent GB-987577-A (GB)
Title: Improved dish washing machine for household use
IPC: A47L15/30
Filed: 1961-08-22
Abstract: 987,577. Dishwashers. FRATELLI VIRGINIO & FREDERICO CANE, S.p.A. Aug. 22, 1961 [Aug. 27, 1960], No. 30212/61. Heading A4F. A dishwashing machine comprises an impeller 19 driven by an electric motor 30, 31 which rotates a basket 20 for containing the dishes to be washed, in the opposite sense at a lower speed, via gear 39, coaxial planetary gears 45, 46 and fixed gear 40. An overrun device (Fig 6, not shown) enables the basket 20 to continue to rotate when the drive is switched off.
Patent GB-701288-A (GB)
Title: An electrolytic process for the production of titanium monoxide
IPC: C01G23/04
Filed: 1951-12-27
Abstract: Reference is made in the Specification to processes for the production of titanium monoxide by heating a mixture of titanium dioxide and titanium powder, or of titanium dioxide and powdered titanium hydride, in an inert atmosphere such as argon.
Patent GB-604529-A (GB)
Title: Improvements relating to insulated wire stripping apparatus
IPC: H02G1/12
Filed: 1945-11-13
Abstract: 604,529. Stripping insulation from cables. WALLIS, D., HEIR, A. H., ALDRIDGE, H., and MASON, R. E. Nov. 13, 1945, No. 30283. [Class 36] A tool for stripping insulation from the end of a stranded cable comprises a cutter for severing the insulation to a selected depth by rotation of the tool, and means whereby the same, or subsequent, rotation of the tool imparts a desirable amount of twist to the eventuafly-bared wire strands. As shown in Fig. 4, the tool comprises a base 1 having at one end a handle 2 and fitted at the other end with a replaceable bed-plate 6 formed with a longitudinal groove to receive the end portion of the' cable. Pivoted in brackets 4 on the base is a lever 3 fitted at its forward end with an adjustable cutter 7 and a screw 17 adapted to grip the end of the cable. The lever 3 is constrained into its operative position by a spring 5. In use, the cable is gripped in one hand whilst the tool is rotated by the other hand in which operation, the insulation is severed and, by the grip of the screw 17, the ends of the strands are twisted. In a modification, the cutting-operation is performed before the end of the cable is gripped by the screw 17 for the subsequent twisting of the strands. Fig. 10 shows a further modification, for operating on cables having relatively stiff insulation, in which a pair of cutters 7, 71 are slidably mounted in a diametral slot in a head 13. Pins 16 project from the cutters into camslots in an adjusting-disc 14 for varying the depth of cut. In this modification, the cable is fed through an interchangeable guide-tube 20 at the front end of the tool. It is also stated that devices, such as a vice or jaws, may be used for mechanically gripping the cable; the rocking lever may be actuated by a power-driven cam; and the tool may be rotated by power-operated means.
Patent GB-737320-A (GB)
Title: Improvements in the electrically operated time delay overload-responsive devices
IPC: H01H71/44
Filed: 1952-12-01
Abstract: 737,320. Electrically-tripped switches; electromagnetic switches. FOSTER TRANSFORMERS, Ltd., and BAGNALL, R. I. Dec. 1, 1953 [Dec. 1, 1952], No. 30369/52. Class 38 (5). A time-delay overload trip device, particularly for a circuit-breaker, comprises an armature 7 having a pivot mounting on a rod or sphere 6, and an insulated soft iron core 4 on which are wound a hold-on coil 11 and a pull-off coil 12 having more turns than the coil 11 but being of the same metal, the coils being connected in parallel in the load circuit. Under normal load, the armature is biased against a non-magnetic stop 10 by a total holding force comprising a constant force due to a weight 9 (or a spring) and the force due to coil 11, the total force being greater than that due to coil 12. Under overload,'the resistance of coil 11 will increase relatively more rapidly than that of coil 12 due to more current through the former coil and subsequent increased heating of this coil, the pull-off force will finally exceed the total holding force, and the armature will pivot. In the case of a heavy sudden overload the coil 12 will at once overcome the total holding force independently of heating effects. Specification 680,336 is referred to.
Patent GB-265725-A (GB)
Title: Improvements in or relating to electromagnets and solenoids
IPC: H01F7/14
Filed: 1925-12-02
Abstract: 265,725. Cooch, H. Dec. 2, 1925. Electromagnets.-An electromagnet forming part of a bomb-release or other apparatus subject to vibration &c. is so arranged that the motion of its core is compounded of movements in two planes at right angles, one movement not commencing till the other is complete. The solenoid is formed with internally-projecting pole pieces 3, 4 and the core 5 is of flat shape, the first motion consisting in a rotation of the core against a spring 9 which brings it opposite the pole-pieces. During this motion longitudinal movement of the core is prevented by a pin 12 attached to it moving along a stop 13. When the pipe 12 is past the stop the rotation is complete and the core moves lengthwise.
Patent GB-1081163-A (GB)
Title: Improvements in and relating to centrifugal pumps
IPC: F04D29/44
Filed: 1964-08-04
Abstract: 1,081,163. Centrifugal pumps. U. M. W. BARSKE AND W. MURRAY. Aug. 4, 1964 [July 19, 1963], No. 30464/64. Heading F1C. In a centrifugal pump having an impeller in the form of a circular vessel with side walls 11, 12 (Fig. 1) and a peripheral wall 13, the peripheral wall or one on each side wall contains forwardly or backwardly directed nozzles through which liquid is discharged substantially tangentially into chamber 31. The nozzle outlet apertures may be flush with the outer surface of the impeller as shown at (23) in Fig. 4 (not shown) and (44, 45) in Fig. 5 (not shown). Alternatively, the apertures may be formed in small protrusions on the impeller periphery as shown at (24) in Fig. 4 (not shown), or on the side walls as shown at (44, 45) in the upper part of Fig. 6 (not shown). To increase the skin friction in the region of forwardly directed nozzles in the peripheral wall and thereby improve flow through the nozzles, the peripheral rims of the side walls may be extended radially as shown in Fig. 9 (not shown). With nozzles in the side walls, rings (64), Fig. 10 (not shown), adjacent the nozzle outlet apertures may be provided for this purpose. Openings 29 in the blades 22 interconnect the spaces therebetween to provide pressure balance and assist priming. The impeller may be formed from two parts 11, 13 and 12, 22 riveted together at 26, or from three parts, namely, the peripheral wall and the two side walls, the latter each carrying blade portions which after assembly of the impeller are separated by narrow slots (48), Fig. 5 (not shown). In the latter impeller assembly, radially shorter blades (52), Fig.7 (not shown) are arranged intermediate the main blades. A stationary diffuser ring (34a), Fig. 11 (not shown), may be provided intermediate the impeller and the pump outer casing. The latter may have one or more tangential outlet diffusers comprising a conical insert (40), Fig. 12 (not shown) projecting into the chamber (31) as described in Specification 1,081,164.
Patent GB-1519761-A (GB)
Title: Electric fuse switch
IPC: H01H3/42
Filed: 1975-08-07
Abstract: 1519761 Fuse switch IMI SANTON Ltd. 7 Aug 1975 [10 July 1974] 30520/74 Addition to 1478837 Heading H1N In a fuse switch of the type described in the Parent Specification 1,478,837 the fuse carrier 1 moved by a cam 9 has a cam follower 11 which is slidably guided in the base member 3.
Patent GB-842241-A (GB)
Title: Improvements in or relating to sonic thickness measuring apparatus
IPC: G01B17/02
Filed: 1958-09-24
Abstract: 842,241. Ultrasonic inspection devices. MAGNAFLUX CORPORATION. Sept. 24, 1958 [Oct. 31, 1957], No. 30544/58. Class 40(7). [Also in Group XXXVI] Apparatus for direct indication of material thickness comprises means for visually indicating the values of the frequencies at which a sweptfrequency oscillator, connected to an electroacoustic transducer coupled to the material, is loaded, a first scale graduated in thickness, a second scale of markings corresponding to the harmonic relation between oscillator frequencies and adjustable to align the visual indications with those markings, and means responsive to the movement of the second scale to effect relative movement between a marker and the first scale whereby that marker indicates on the first scale the material thickness. Rotor plates 15 of oscillator 13 capacitor 14, 15 are continuously rotated by motor 16 to give a designated variation of frequency with rotation angle (see Group XXXVI). The motor shaft rotates neon 21 energized by trigger 26 when an oscillator peak loading occurs due to resonance in test material 12 excited by crystal transducer 11. Points opposite thickness scale 23 are illuminated through arc 32 by the neon and scale 24 is rotated so that adjacent markings thereon are aligned over adjacent illuminated points; the index 31 on scale 24 is then opposite the actual material thickness on scale 23. Filter 28 rejects oscillator frequences but passes the relatively low frequency "loading" pulses to amplifier 27. In a second embodiment amplifier 27 provides vertical deflexion of a cathode-ray beam in an oscilloscope whose time-base is synchronous with oscillator frequency sweep and associated scales are aligned with the display produced, Figs. 6-9 (not shown).
Patent GB-536687-A (GB)
Title: Method for the production of dispersions
IPC: B01J13/00
Filed: 1939-11-22
Abstract: 536,687. Dispersed reaction products. COURTAULDS, Ltd., TALLIS, E. E., and FIELD, W. J. C. Nov. 22, 1939, No. 30566. [Class 2 (iii)] [Also in Group III] A dispersion of a substance in a liquid is obtained by grinding in a pebble or ball mill in presence of the liquid two or more substances which react to give the desired product. A dispersing agent may be added. An example describes the production of an aqueous dispersion of the reaction production of diethylene triamine and phenyl isothiocyanate.
Patent GB-422972-A (GB)
Title: Improvements in machines for testing hardness of materials
IPC: G01N3/42
Filed: 1933-11-04
Abstract: 422,972. Dashpots. AVERY, Ltd., W. & T., and HANCOX, A. H., Soho Foundry, Birmingham. Nov. 4, 1933, No. 30654. [Class 108 (iii)] [See also Group XIX] The weight of the loading weights for a hardness testing machine is normally taken off the loading lever and taken by the top end of a cylinder 7 above a dashpot device, a lever connected to the extension 12b of a cylinder 12 being operated to draw the latter downward. This forces oil from above the piston 11 through a one-way valve 14 to the lower side raising the piston, the rod 10<a>, cylinder 7 and the loading weights which are held raised. When a latch is released the oil is forced through an adjustable needle valve 10<b> at the lower end of the rod 10 and the weights gradually fall until their weight is taken by the rod connected to the loading lever. Specification 353,729, [Group XIX], is referred to.
Patent GB-215797-A (GB)
Title: Improvements in the use of aircraft for advertising purposes
IPC: G09F21/10
Filed: 1922-11-09
Abstract: 215,797. Shepperson, D. A. A. Nov. 9, 1922. Keyboard switches.-Relates to switches for selectively illuminating lamps arranged on a series of panels. To each panel 2<x> corresponds a bank of plungers 24, Fig. 4, on a travelling switch board 21, one plunger for each character, and each plunger is connected by a wire 19 to a distributor board 14 which is connected by wires 13 to the lamps appropriate to the corresponding character, a complete alphabet of boards 14 being provided for each panel 2x. The circuits of the required lamps are completed when the appropriate plunger 24 enters its socket 22. In order that current may not pass back from a board 14 to a lamp not belonging to the letter required and so to other boards 14, unilaterally conducting devices are inserted in the leads 13. These may comprise polarized relays of high resistance shunted across their own contacts, suitable lower resistances being provided to prevent shortcircuiting of the relays when the contacts are closed. The characters are all erased simultaneously when the plate 23 is moved to the dotted position, Fig. 4, by a manually operated cam device. In order that the several panels may be successively illuminated by means of a keyboard, the switchboard 21 is made to travel so as to bring the several banks of plungers 24 successively into position for operation by a single alphabet of keys 33, Fig. 5. The switchboard is suspended by its rollers 28 on a rail 26 and is urged along the rail by a spring, but retained by an escapement sector 31 which rocks about a shaft 32 and is adapted to engage a series of teeth 30, one for each panel, and to permit the escape of one tooth at each operation of a key. The escapement is effected bv the agency of the rod 38, which on being moved to the right on the depression of a key. turns the sector 31 by means of a pin 41 which engages the tail 37 of the sector. As soon as the pin 41 is free of the tail 37, the sector is restored by the spring 43. The rod 38 is returned to the left by a spring 39 on release of the key, the tail 37 being formed as a pivoted pawl to permit the passage of the pin 41. The key 35 may be actuated automatically, or replaced by an automatic mechanism.
Patent GB-719178-A (GB)
Title: An improved safety arrangement for landing gangways, more particularly for marine craft
IPC: E01D15/24
Filed: 1952-12-03
Abstract: 719,178. Landing gangways. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES. Dec. 3, 1952 [Dec 12, 1951], No. 30678/52. Class 113(1) In a safety device for a landing gangway constituted by relatively movable members 4, 5, 6, the member 4 being articulated at 16 to the member 5, rollers 14, 15 enabling the member 5 to move on the member 6, a holding hook 17 provided at the head of the gangway member 4 and engaging with the side 18 of the craft is held in its operative position by a guide 20, as long as the distance between the quay wall and the craft remains within a predetermined limit and when the same is exceeded the hook is rocked out of its craft engaging position by its guide 20 being rocked by a system of rods 30, 37. As soon as the craft moves from the wall further than is admissible, a lever arm 42 on the gangway member 5 strikes against a stop 44 on the member 6 and the arm 42 moves the rods 37, 30 to lower a rest 24 clear of the guide 20 which latter falls under its own weight to lift the hook 17 clear of the side of the craft. The gangway member 4 has a prop 62 with a counterweight 60 on a cable 59 passing round a pulley 58 geared to a ratchet wheel 52, both the latter being mounted on a prop 54 on the member 5. When the rod 37 is moved to release the hook 17, an abutment 45 strikes a lever 46 to move a rod 49 to engage a pawl 51 in the ratchet wheel 52 to stop movement of the pulley 58 and hence to prevent the member 4 from falling when it is no longer supported on the side of the craft.
Patent GB-1323103-A (GB)
Title: Recording and or playback apparatus
IPC: G11B15/61
Filed: 1970-06-24
Abstract: 1323103 Magnetic head mountings PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 24 June 1970 [27 June 1969] 30681/70 Heading G5R A magnetic head 11 is carried by an arm 5 pivotable 7 on a rotatable support 1 so as to move outwards under centrifugal force against spring bias (14, Fig. 2, not shown). The head is located radially and axially by surfaces 22, 23 of a split drum 19, 20 which may constitute a helical guide in a videotape cassette, the drum being centred over hub 4. A modified support (Figs. 3, 4, not shown) includes a leaf spring (27) to damp head motion.
Patent GB-265330-A (GB)
Title: Improvements in or relating to controllers for electric motors
IPC: H02P1/20
Filed: 1925-12-04
Abstract: 265,330. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co,). Dec. 4, 1925. Master control systems.-Relates to controllers for accelerating electric motors by the successive operation of a number of contactors with a pause at each step due to transient current induced by a winding in the motor circuit. According to the invention the windings of the inductive device 10, 11 are arranged to vary their mutual induction at a particular stage or stages of the ccntrol, and are caused to act alternately as primary and secondary windings. In the arrangement shown the sequence begins with the closure of a line switch 1 and reversing switches 2 - - 5. Part of the winding 11 is energized through a tapping connected to all the resistances R' - - R<4> and an inductive effect which, so long as the core of the transformer is unsaturated, depends on the line voltage and the counter electromotive force of the motor, is exerted on the winding 10, thus transiently energizing the restraining coil 6y of the first resistance contactor 6. When this closes the winding 10 becomes the primary and acts upon the whole of the winding 11, the core being saturated so as to render the effect approximately the same for different loads. When 7 closes, 11 becomes the primary and the alternate action continues until all the resistance is cut out.
Patent GB-361067-A (GB)
Title: Permanent binder for loose leaves
IPC: B42F13/08
Filed: 1931-07-15
Abstract: 361,067. Binders for loose leaves. STEVENS, G., 3, Chalcroft Road, Lewisham, London. July 15, 1931, No. 30931/30. [Classes 16 and 146 (i).] A permanent binder for loose leaves consists of a pair of covers a, e hinged to wood or similar strips b, b<1>, the strip b carrying a pair of sheet-holding prongs c which are passed through perforations b<2> in the leaves and the strip b<1> and the free ends bent over and secured in a recess b<3> in the upper surface of the strip. The prongs c may be formed from a bent wire and the strip b grooved to receive it. Instead of the cover a being hinged directly to the bar b it may be formed with a flap perforated to engage over the prongs. A flexible backing-piece d bent to a U-shape may be employed, having a number of holes d<1> with which the prongs engage, the particular holes used depending on the number of leaves to be bound. The cover e, provided with a perforated flap e<1> is placed on top of the leaves and finally the strip b<1> placed in position. The turned-down ends of the prongs c are secured to the strip b<1> by a pair of sheet-metal sleeves f adapted to enclose and fit tightly over the strip b<1>. Tapered slots f<1> allow the sleeves to pass over the prongs c and terminate in holes f into which the prongs snap to prevent disconnection. Instead of the slots being tapered one edge of each slot may be formed with a ratchet tooth.
Patent GB-316481-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of margarine
IPC: A23D7/02
Filed: 1928-10-25
Abstract: 316,481. Borgen, H., and Wadsworth, G. W. Oct. 25, 1928. Butter substitutes.-In apparatus for use in making margarine comprising a rotating bladed agitating device e in a cooling jacketed vessel as described in Specification 166,648, the rotating device is provided with hinged blades a serving to divert the material from the cooling surface towards the surface of the device. These diverter blades, mounted in a poised condition in brackets c fitted in recesses d in the tapered rotor, perform a scooping action; the mounting may be of a springy or yielding character, as by the provision of a spiral or other spring h at the hinge.