baber/WOPTO huggingface dataset:
Patent GB-651243-A (GB)
Title: Improvements in automatic safety switches for electrically-heated utensils and machines
IPC: H01H71/20
Filed: 1948-12-09
Abstract: 651,243. Thermal switches. BULPITT & SONS, Ltd., and TYLER, A. Dec. 9, 1948, No. 31825. [Class 38(v)] [Also in Group XI] A safety cut-out accommodated in a chamber 11 beneath a liquidcontaining vessel 12, [see Group XI], comprises stationary contacts 16 connected to the socket pins 14 and moulded in an insulating  block 17 integral with a disc 18X secured to a flanged sleeve 19. A nut 24 clamps the sleeve 19 to the base of the vessel together with the in-turned edge 25 of the casing 28 of an annular heating element 26, the leads 37 of which are secured by grub screws 38 to contacts 35 in a movable insulating block 33. A compression spring 40 located in recesses in the blocks 17, 33 tends to separate the contacts 16, 35 but is normally prevented from so doing by a plunger 45 having a flange 48 retained by a ratchet wheel 31. A spring 44 is compressed between the end of a recess in the plunger and a stud 43 located in the block 33. The ratchet wheel is fixed to a spindle 29 rotatable in a tube 27 soldered to the heater casing 28 and normally retained by fusible metal 30 enclosed by a shoulder 31a on the spindle, the lower end of which bears in a plate 55 fixed to the block 17. The cut-out is reset by pressing the extension 51 of the plunger, the spring 44 allowing the flange 48 to pass the ratchet wheel.
Patent GB-1390859-A (GB)
Title: Sheet moulding compositions
IPC: B32B5/28
Filed: 1972-07-07
Abstract: 1390859 Laminates GKN SANKEY Ltd 8 Aug 1973 [7 July 1972] 31905/72 Heading B5N  A sheet moulding composition is produced by laying up a laminate having two outer layers and a core all formed from filaments by applying thermosetting material to the core and/or outer layers and consolidating the laminate thus formed, the filaments of each outer layer being longer than the filaments of the core and being in the form of a non-woven mat, in which the filaments are predominantly oriented in three mutually inclined directions parallel to the general plane of the laminate. The laminate may be produced by moving the outer layer mats, e.g. of glass filaments, downwardly in spaced relation and directing a supply of shorter filaments, e.g. glass fibres filled thermosetting material into the space between them, the resulting laminate being consolidated by passage between rollers optionally with the application of heat. Alternatively the outer layer mats may be impregnated with the thermosetting material by spraying or by passage through a bath of the material. In the outer layers one of the directions in which the longer filaments extend may be longitudinally, these filaments preferably being continuous, the other filaments lying obliquely to the length, e.g. at an angle of 45 degrees.
Patent GB-688833-A (GB)
Title: Improvements in or relating to mounts or bases for electrotypes, photo-engravings, stereotypes and other printing blocks or plates, and to the manufacture thereof
Inventor: CHEETHAM GEORGE WILLIAM FREDER
IPC: B41F27/04
Filed: 1949-12-13
Abstract: 688,833. Casting composite plate. BROADWATER PRESS, Ltd. Oct. 31, 1950 [Dec. 13, 1949], No. 31920/49. Class 83 (i). [Also in Group XVI] A base or mount for a printing block or plate comprises a frame A having flat upper and lower metal surfaces produced by casting type-, stereo-, or other metal around a series of spaced-apart and parallelly arranged solid wooden, or other, cores B, which extend the entire length of the mount. The mould for making the mount comprises hinged members C, C<SP>1</SP>, the member C<SP>1</SP> being provided with side bars C<SP>3</SP>, C<SP>4</SP> having projections C' into which the cores 13 are fitted, the arrangement being such that the cores are spaced from both the hinged members C, C<SP>1</SP>. The mould is then closed and filled with molten metal. After removal from the mould any surplus core or metal, shown dotted in Fig. 1, is removed. The cores are provided with grooved surfaces B<SP>1</SP>.
Patent GB-631089-A (GB)
Title: Improvements in electrically-operated releasable fastening means
IPC: E05B47/00
Filed: 1947-12-03
Abstract: 631,089. Electrically-operated fastenings. ROBERTSON, D. R., and SAMPIETRO, A. C. Dec. 3, 1947, Nos. 31975/47, 14388/48, and 16936/48. [Class 44] An electrically-operated fastening comprises a permanent magnet secured to one part and a normally de-energized electromagnet on the other part, the arrangement being such that the two parts are normally held together by the attraction of the permanent magnet and are released by energizing the electromagnet in such a sense as to neutralize the flux due to the permanent magnet. In the form of Fig. 1, the parts are adapted to separate in the direction of the flux across the gap i.e. between the pole pieces 24 on the magnet 23 and the yoke 26 forming the core of the electromagnet. The pole pieces are tapered so as to be substantially magnetically saturated at the gap by the permanent magnetism. A switching circuit controlled by a key-operated master switch is provided to energize the coil 27 to release the parts. The coil may be energized in the reverse direction to cause the parts to move together into firm engagement. In the form of Fig. 3 the pole pieces 38, 46 are bevelled so that the part carrying the permanent magnet may fit within the part carrying the electromagnet. The upper part is supported on a blade spring 39. The parts are separated to allow relative movement in the direction of the arrow 41 by energizing the coil 45 to cause the magnets to repel each other. In the form of Figs. 7 and 9, the upper part comprising a frame 49 is mounted on a stud 51 by a rubber bush 52 to ensure accurate seating between the parts. The permanent magnet 54 is supported in the frame 49 which carries pole pieces 55 at the ends and a depending apertured plate 57 at one side. The electromagnet on the lower part is carried in a die-cast body 62. Pole pieces 64 are secured to the ends of the core 61 and auxiliary pole pieces 68 are secured to the upper parts of the main pole pieces. The adjacent ends of the auxiliary pole pieces are tapered, Fig. 9, and co-operate with a wedge-shaped catch slider 70. The catch is spring urged to the shot position in which the nose engages in the aperture 59 of the plate 57. The flux in the auxiliary shunt magnetic path is normally too weak to retract the catch but when the coil 63 is energized to oppose the action of the permanent magnet, the flux in the shunt path becomes sufficient to attract the slide 70 to the pole pieces 68 and retract the catch. At the same time the flux due to the permanent magnet is neutralized and the parts may be separated. Two or more fasteners of this type may be controlled separately or all together by switching circuits. For this purpose the permanent magnet is replaced by an electromagnet permanently energized through a common supply circuit which is opened to release all the fastenings together, as in the case of an emergency. The fasteners are also releasable by individual switches exciting the other electromagnets to oppose the flux of those permantly energized.
Patent GB-642167-A (GB)
Title: Improvements in or relating to pockets for overcoats or the like
IPC: A41D27/20
Filed: 1947-12-04
Abstract: 642,167. Pockets. HAMMERSLEY, S. H. Dec. 4, 1947, No. 32000. [Class 141] An imitation patch pocket is formed by pulling and working the garment cloth to make a fold 3, U-shaped in cross-section, which is sewn on to the cloth to form a raised edge on the outer face of the garment constituting the sides and bottom of the pocket, and a welt on the inner face to which the lining is sewn. The cloth may also be secured to the lining by an inner row of stitching 4. The slit 1 forming the pocket mouth may be reinforced by a strip of material 2 and a covering flap 5 may be provided.
Patent GB-1193393-A (GB)
Title: A Dynode for an Electron Multiplier and Method of Making the Same
Inventor: ROE DONALD WINSTON
IPC: H01J9/12
Filed: 1968-07-04
Abstract: 1,193,393. Electron multipliers; cathode materials. R.C.A. CORPORATION. 4 July, 1968 [14 July, 1967], No. 32000/68. Heading H1D. [Also in Division C1] A dynode for an electron multiplier comprises a metallic substrate and a coating of magnesium oxide on the substrate, the magnesium oxide coating being formed by pyrolytic decomposition of a vapour of magnesium acetylacetonate or a vapour of a volatile substituted magnesium acetylacetonate. The surface of the substrate may be a coating of silver of 10,000 Š thickness. The magnesium oxide coating is preferably 100 to 1000 Š in thickness, and may be subsequently treated with caesium.
Patent GB-263185-A (GB)
Title: Improvements relating to spring balancing devices
IPC: B25H1/00
Filed: 1926-12-17
Abstract: 263,185. Chicago Pneumatic Tool Co., (Assignees of Benedict, W. H.). Dec. 17, 1925, [Convention date]. Spring-drum apparatus for adjustable suspension. - In spring means for supporting heavy objects at any desired height having a flexible connection to a member rotated by the spring, variations in the tension of the spring are compensated as the weight is raised or lowered, so as to obtain a constant supporting force; means are also provided to lock the rotary member if the spring breaks, to lock the rotary member in any position by gravity catches, and to adjust the spring tension. The heavy object is supported by a cable 21, Figs. 2 and 3, which runs in a groove of varying diameter in a sheave 32 connected by screws 33 to a drum 13 so that the sheave may be readily changed for another one of different size. The drum is rotated by the spiral spring 15, the inner end of which is connected to a fixed spindle 11 supported by the casing 34 and by its detachable cover 22, the cover having a slot for the cable 21. A supporting lug 8 is provided on the casing. The interior of the casing is formed with a number of ratchet teeth which are engaged, in the event of breakage of the spring, by the spring attachment pin 18 or by a pin 35, which is normally held clear of the teeth by a light spring 37, as shown in full lines, but may be forced outwardly, as shown by dotted lines, by the expansion of the broken spring 15. The hub of the drum 13 is formed with radial holes 38, Figs. 2 and 4, containing balls 39, the uppermost of which may engage the uppermost of the one way teeth 40 on the fixed spindle 11 if the speed of the drum is' low. The balls fly outwards when the drum rotates quickly and they may also be retained clear of the teeth 40 by pins 42 the ends of which engage a circular groove 44 in the hub of the drum. The weight may thus be raised at any speed and may be lowered quickly, but is locked and retained in position if lowered slowly for a short distance. The spindle 11 is formed with a square end 12, Figs. 2 and 5, with holes 27 for a locking pin 26 and with a retaining pawl 29 so that it may be held in any position to which it may be adjusted to vary the tension of the spring 15.
Patent GB-1528240-A (GB)
Title: Conference circuits for telephone exchanges of digital type
IPC: H04M3/56
Filed: 1976-08-02
Abstract: 1528240 Conference circuits SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 2 Aug 1976 [31 July 1975] 32050/76 Heading H4K In a conference circuit compressed P.C.M. codes are numerically combined in compressed form. In one embodiment described codes from three subscribers and each comprising a base (mantissa) and a segment number (compression factor or exponent plus a sign bit) are stored in an input unit (Fig. 3, not shown), forwarded in pairs to a preprocessing unit (Fig. 4, not shown) having two pairs of stores for the bases and segment numbers and arranged to shift the digits (bits) of the base of one code of each pair to the right or left through a number of digit positions equal to the difference between the segment numbers of that pair of codes and calculated by a first processing unit (Fig. 5, not shown), then further forwarded to a second processing unit (Fig. 6, not shown) which adds or subtracts in accordance with the sign bits the two bases of each pair to generate sum or difference codes. A four subscriber conference system (Fig. 9, not shown) is described. Six time channels are utilized. Codes from subscribers A and B are added to form partial sums which are combined with codes from subscribers C and D using three channels in a manner similar to a three party conference to provide B+C+D and A+C+D and codes from C and D are added to form partial sums C + D which are combined with codes from A and B to give A+B+D and A+B+C.
Patent GB-1402612-A (GB)
Title: Electrically insulating paper laminates and power cables incorpo rating them
IPC: H01B7/02
Filed: 1972-07-07
Abstract: 1402612 Insulated conductor SUMITOMO ELECTRIC INDUSTRIES Ltd and TOMOEGAWA PAPER MFG CO Ltd 7 July 1972 [8 July 1971] 32057/72 Heading H1A [Also in Division B5] Power cables include an electrically-insulating layer wound from a laminate, comprising sheets of insulating paper bonded by a meltextruded polypropylene or ethylenepropylene copolymer adhesive that has been melt-extruded at 260-295 C (see Division B5) which is impregnated with oil, e.g. comprising alkylbenzene. A copolymer adhesive contains no more than 5% ethylene units and has a thickness no more than 2/3 that of either paper sheet. The cable is preferably made by winding the moistened laminate on to the conductor, drying and impregnating.
Patent GB-1154869-A (GB)
Title: Fungitoxic Agents
Inventor: SCHEINPFLUG HANS
IPC: A01N47/04
Filed: 1967-07-12
Abstract: 1,154,869. Fungicides containing N-(trihalomethylthio) - N - trifluorometbylaminobenzamides. FARBENFABRIKEN BAYER A.G. 12 July, 1967 [15 Sept., 1966], No. 32131/67. Heading A5E [Also in Division C2] A fungitoxic composition comprises as the active ingredient a compound of general formula in which R 1  is a trihalomethyl group, R 2  is halogen, C 1-3  alkyl, C 1-2  alkoxy and/or CF 3 , R 3  is H, C 1-4  alkyl C 2-4  alkenyl or C 1-4  hydroxyalkenyl, R 4  is H, alkyl, alkenyl cycloalkyl, phenyl, or halogen, nitro, C 1-3  alkyl and/or C 1-2  alkoxy - substituted phenyl, and n is an integar from 0-3, in admixture with a conventional solid diluent or carrier or in admixture with a liquid diluent or carrier containing a surface-active agent.
Patent GB-741232-A (GB)
Title: Improvements in the treatment of coke oven effluents or the like
Inventor: WILLIAMS THOMAS HENRY
IPC: C02F1/28
Filed: 1952-12-19
Abstract: A process for treating a coke-oven effluent or similar aqueous liquor low or substantially free from thiocyanate or thiosulphate consists in passing it successively through a bed of an alkali-activated anion-exchange resin having pores that are large in relation to those of normal anion-exchange material and a bed of activated carbon: the pores are sufficiently large to permit entry of anions of colouring matter contained in the liquid. These steps may be preceded by removal of ammonia by distillation and removal of any thiocyanate and thiosulphate either by passage through anion-exchange material having pores of the normal small size or by the process of Specification 723,610.  The large-pore anion-exchange resin may be a bed of resin gel produced by the condensation of an aldehyde with a phenol, an aromatic amine or an aliphatic amine, or with more than one of these, in an aqueous medium with no or substantially no drying of the gel. It is found in the practice of the invention that the condition of the final liquor is improved and the useful life of the activated carbon is prolonged.
Patent GB-1072817-A (GB)
Title: A tap for drawing liquids from containers having flexible walls
IPC: B67D1/02
Filed: 1965-07-28
Abstract: 1,072,817. Tapping casks &c. L. G. LEMOINE. July 28, 1965 [Aug. 31, 1964], No. 32378/65. Heading B8T. A tap for drawing liquid from a flexible container has a perforated head 2 which pierces the container wall 12 forming a neck 13 which coacts with a sleeve 11 on the tap to form a seal and resist withdrawal of the tap. The surface of the sleeve 11 has a high coefficient of friction, being made, e.g. of rubber. A spigot 9 permits attachment of a pipe for withdrawal of liquid through the duct 10.
Patent GB-521004-A (GB)
Title: Improvements in or relating to selector switch banks
IPC: H01H63/06
Filed: 1938-11-08
Abstract: 521,004. Automatic exchange switches. STANDARD TELEPHONES & CABLES, Ltd. (Laethem, F. van.). Nov. 8, 1938, No. 32390. [Class 40 (iv)] A unitary flat contact-' bank for a group of switches is built up of continuous self-multipling contact strips separated by insulating strips of wood impregnated with synthetic resin or of other heat-bondable material, the assembly being then subjected to heat and pressure. Various methods are described for punching the strips from blanks. In the upper portion of Fig. 1 the lines represent cuts and the shaded parts punched out portions, the punched blank being then expanded as shown in the lower half of the figure. The root portions of the terminals 5 of a group of strips are bent to bring the terminals to the same level and the terminals may be twisted to lie in planes at right angles to the contact strips. Figs. 10 and 11 show a method of producing strips for back-to-back switches, the multipling portions being in twisted zig-zag formation although expansion , into straight formation may be effected. Specification 521,144 is referred to.
Patent GB-777066-A (GB)
Title: Hobbing head for bevel gear taper hobs
IPC: B23F9/08
Filed: 1954-11-09
Abstract: 777,066. Gear-cutting. KLINGELNBERG, G., JAEGER, G., KLINGELNBERG, H. W., and BAUM, C., [trading as KLINGELNBERG SOHNE, W. F.]. Nov. 9, 1954 [Dec. 7, 1953], No. 32393/54. Class 83 (3). A head for a bevel-gear taper-hob 21 comprises a spindle-assembly mounted for angular adjustment on a cradle 7, the adjustment being measured by a slip-gauge 15 between stops 13, 14 on the assembly and the cradle, one of the stops being cylindrical. The assembly is adjusted, for varying the convexity of the teeth cut, by a turnbuckle 12 or by worm-gearing. The hob is rotated through gears 17, 18, 19.
Patent GB-1105106-A (GB)
Title: Improvements in or relating to the bonding of nylon to olefin copolymers
IPC: C09J123/16
Filed: 1966-07-19
Abstract: An adhesive composition comprises an aqueous mixture of a heat-hardening phenol-aldehyde type resin and an elastomeric copolymer of at least one a -olefin and at least one nonconjugated diene.  The phenol-aldehyde resin is suitably a resorcinol-formaldehyde resin, and is suitably a resorcinol-formaldehyde resin, and may be prepared in situ in the presence of a latex of the a -olefin - non-conjugated diene copolymer. This copolymer may be a copolymer of ethylene with 1,4-hexadiene, 5-methylene-2-norbornene, or dicyclopentadiene, or a terpolymer of ethylene and propylene with these or with 5-(21-butenyl)-norbornene, or a terpolymer of ethylene, 2-norbornene and 1,4-hexadiene.
Patent GB-1527071-A (GB)
Title: Power capacitor
IPC: H01G4/18
Filed: 1977-08-02
Abstract: 1527071 Capacitors KRAFTWERK UNION AG 2 Aug 1977 [6 Aug 1976] 32456/77 Heading H1M A power capacitor of low self-inductance comprises a stack of alternate metal layers 2, 4 and insulating layers 6, portions 3, 5 of the metal layers extending into an axial space 7, portions of the same polarity being aligned. Space 7 may alternatively be located as the periphery of the capacitor body (Fig. 3, not shown) permitting more ready connection of a consumer such as a gas discharge section. The extending electrode portions may be interconnected by bridging pieces 23, 45. The capacitor may be oil-immersed.
Patent GB-154154-A (GB)
Title: Improved apparatus for raising and lowering the tool frames of motor ploughs or cultivators
IPC: A01B63/04
Filed: 1920-11-17
Abstract: 154,154. Rezler, E. Jan. 28, 1914, [Convention date]. Ploughs; cultivators.-In a motor plough or cultivator in which the implement frame is pivoted on the axle of two front driving wheels provided with a releasable rear steering-wheel, the weights of the parts are so arranged that the weight moments of the frame t and steering-wheel 6 about the axle of the driving-wheels o are together larger than the moment of the reaction of the driving-gear, and the weight moment of the frame t alone is less than the reaction moment, so that on changing from forward driving to rearward driving the frame may be raised relative to the steering-wheel by the reaction, and on changing back to forward driving the frame is lowered again by the reaction and its own weight. The steering-wheel 6 is oonnected to a rack 3 guided vertically in a box 2 and held in position by a pawl 9 which may be moved by the driver bv means of a pedal 12, rod 11, and crank 10. In the working position, the box 2 rests on an adjustable pin 22 in the rack 3. On changing from forward to backward driving, the box 2 slides up the rack 3. By means of the modified rack and pawl shown in Fig. 4, the driver may alter the depth of furrow while ploughing. The double pawl 9, 15 prevents the frame from falling more than one notch for each movement of the pedal 12. When the frame rises, the pawl slips over the teeth until the part 9 engages the face 17 of the top notch. The notch between the teeth 18, 19 is longer than the others to allow of the frame falling rapidly to bring the shares down from their uppermost position to the surface of the soil.
Patent GB-655021-A (GB)
Title: Fluid conduit
IPC: F16L27/08
Filed: 1948-12-16
Abstract: 655,021. Articulated pipes. CHIKSAN CO. Dec. 16. 1948. No. 32590. Convention date, July 26. [Classes 99(i) and 99(ii)] A pipe comprises sections B, C which may be of different lengths, joined by swivel connections D to a middle section A equal in length to the combined lengths of sections B C. Coupling means E of each end section which allow a closed loop to be formed, Fig. 3, or a number of pipes to be connected in series, may comprise a tapered male part 51, that compresses a packing in a socket 50 threadedly engaged by a collar 52. Connections D may comprise two L- shaped members 10, 11 rotatably joined at one end by antifriction means, such as ballbearings, and fitted at their other ends with rotatable sleeves 12 threadedly connected with the sections. Specification 655,022, is referred to.
Patent GB-750898-A (GB)
Title: Improvements in electrical control systems
IPC: G05D23/22
Filed: 1952-12-23
Abstract: 750,898. Automatic temperature control systems. SANGAMO WESTON, Ltd. Dec. 23, 1952 [Jan. 21, 1952], No. 32642/52. Class 38 (4). In Fig. 4 the direct voltage output of a thermocouple 13 responsive to the temperature of a liquid bath, is applied in opposition to a source of reference potential 35 to a moving coil 31 of a D.C. to A.C. converter 30 of the type described in Specification 604,312, [Group XL (c)]. A valve 45 is maintained in oscillation by feedback through the right-hand section of a double triode 40. On deviation of temperature from a value determined by the setting of a potentiometer 43, coil 31 moves from a central zero position so that further feedback occurs through the left-hand section of valve 40 to cause the oscillation frequency to increase or decrease according to the sense and magnitude of temperature deviation. The oscillator output is applied through a transformer 47 to a frequency discriminator, including a doublediode 49, which produces a direct voltage dependent in polarity and magnitude on the sense and magnitude of the deviation. This direct voltage is applied to biased triodes 22, one or other of which conducts according to the polarity when the temperature deviation reaches a predetermined value, to pass current in the appropriate direction through a resistance 36, the voltage across which constitutes negative feedback reducing amplifier gain for temperature deviations outside predetermined limits. An instrument 50 indicates or records deviations between these limits. A relay 16 in the anode circuit of one of the diodes 22 operates to switch off electric heating of the bath when the temperature rises above a predetermined limit. Specification 749,251, [Group XL (c)], also is referred to.