baber/WOPTO huggingface dataset:
Patent GB-732306-A (GB)
Title: Improvements relating to sewing machines
IPC: D05B27/22
Filed: 1953-06-22
Abstract: 732,306. Mechanical switches, without quick action. SCHWAB, M. June 22, 1953 [June 20, 1952], No. 17303/53. Addition to 732,295, [Group VII]. Class 38 (5). [Also in Group VII] A three-contact switch for controlling operations of a sewing-machine at the end of a seam as described in the parent Specification and thus requiring a normal off position followed by a cycle of three positions in which successively two contacts are connected, all are disconnected, and all three are connected, is formed as a rotary member with contact pieces arranged so that several cycles of connection are completed in one revolution, the member being actuated by a knee-lever through ratchet gear of such stroke that one cycle of connections corresponds to one tooth of the ratchet and thus to one complete movement of the lever. In the form shown, the rotary member 4, Fig. 2, is of insulating material and the contact pieces are formed.by rods 10 embedded therein ; the fixed contacts are in the form of spring members 22 arranged side by side, their ends being shaped to engage the rods 10 and ridges 16 formed between the rods so as to locate the member 4 in its successive positions. Alternate rods 10 span all three contacts and only two of them, the member 4 being formed with a plain cylindrical surface for that part of its length corresponding to the third contact at parts of its periphery adjacent to the short rods 10; the member 4 is preferably formed in two parts, one of the lengths corresponding to the short rods and the other making up the remainder. The spindle 28, Fig. 4, is geared to a wheel 29 integral with a ratchet-wheel 31 and free on a spindle 30, and the knee-lever 32 is also free on this spindle and carries the ratchet pawl 34; the lever is biased by a spring 35 to the position A in which all the contacts are disconnected. To carry the member 4 through its cycle, the lever is moved successively to positions B (short .rod under the contacts), C (ridge under contacts), and D (long rod under contacts), and finally to E, which corresponds to the off position at the beginning of a new cycle ; the lever is now released to position A (the member 4 remaining stationary) and the pawl engages the next tooth of the ratchet-wheel 31.
Patent GB-316608-A (GB)
Title: Improvements in or relating to waggon tipping apparatus
IPC: B65G67/00
Filed: 1929-06-06
Abstract: 316,608. Tacvorian, H. Aug. 1, 1928, [Convention date]. Tipping-apparatus.-A tipping-platform A with rails in line with the permanent way is carried by sets of levers B, C pivoted on brackets H, I, and arranged so that when the levers are rocked for tipping the wagon, the centre of gravity of the moving parts, including the loaded wagon or wagons, moves approximately in a horizontal line and little power is required to effect the tipping. The levers B, C are connected by links D and operated by a motor 6 through reducing gearing, crank discs F and connecting rods E. The wagon is held by hand-actuated clamps I. As shown, the wagon discharges through side doors, but the tippler may be arranged for discharging the wagon through end doors with vertical or horizontal hinges.
Patent GB-209706-A (GB)
Title: Process for the preparation of diethylchloracetamide
IPC: C07C233/01
Filed: 1923-07-05
Abstract: Dicthylchloracetamide is prepared by treating diethylchloracetylchloride with ammonia or a compound such as ammonium carbonate, which gives off ammonia.  It possesses soporific properties.  Diethylchloracetylchloride is obtained by chlorinating diethylacetylchloride.
Patent GB-1353623-A (GB)
Title: Toroidal electromagnetic deflection yoke
IPC: H01J29/76
Filed: 1971-05-27
Abstract: 1353623 Electron beam deflection systems RCA CORPORATION 27 May 1971 [3 June 1970] 17486/71 Addition to 1299491 Heading H1D A toroidally wound deflection yoke for providing beam deflection in a multi-beam colour TV picture tube (e.g. delta array) while maintaining substantial convergence over the raster comprises an annular core and a pair of orthogonally acting beam deflection windings symmetrically disposed about respective axes of symmetry, each winding comprising in each quadrant a first winding portion from the related axis of symmetry through a predetermined angular segment (e.g. # 1H ), a second winding portion extending through another angular segment (e.g. # 2H ), and a third winding portion extending through an annular segment (# 3H -# 4H ) angularly separated from that occupied by the second winding portion and disposed in the separation between second and third winding portions of the other windings. Convergence and registration can be maintained while ensuring minimum coma. Figs. 1 to 6 are as in the parent Specification 1,299,491 and a detailed theoretical treatment is included. Conductor 34C (Fig. 7) is at the coma invariant angle. Reference is made to shadow mask tubes.
Patent GB-308246-A (GB)
Title: A coin controlled weighing scale
IPC: G07F17/04
Filed: 1928-06-18
Abstract: 308,246. Toledo Scale Co., (Assignees of Beard, J. H. and Hem, H. 0.). March 20, 1928, [Convention date]. Weighing-apparatus; coin action, mechanical - connection; coin-discharging mechanism.-In a coin-controlled weighing scale in which h the weighing mechanism is normally locked against operation by mechanism releasable by a coin engaged and moved member, the coin itself being engaged and moved by a manually actuated element, the coin engaged member is connected to the weighing mechanism and is displaced, on movement of this mechanism, to discharge the coin. The draw-rod 8, Fig. 5, connecting the platform to the counterbalancing mechanism is normally locked against movement by being connected at 13 to a lever 12 having a toothed portion 15 which is engaged by a toothed pawl 16 pivoted at 17. After prepayment, the pawl 16 is released by the upward movement of a lever 20 which is actuated by a bell-crank lever 23, Figs. 2 and 6, connected to a movable frame 24. The frame 24 is connected by an adjustable link 25 to the lever 12 and is formed with a pair of toes 26 on which the coin 36 inserted through a slot 28 rests. The slot is guarded by a pivoted baffle 30 which prevents the coin, when dropping down a slope 29, from overshooting abutments 27 on the frame 24. A plunger 33 is then pressed in against spring action and a finger 35 thereon engages the coin pressing it against the abutments 27 to push back the frame 24 and cause the lever 23 to release the weighing mechanism. When the weighing mechanism moves under the action of the load, the link 25 rocks the front end of the frame 24 downwards to discharge the coin to a shoot 37. The toes 26 on the frame 24 may be moved apart so that small coins will drop betweem them, or they may be pressed together so that the scale may be operated by small as well as large coins.
Patent GB-746852-A (GB)
Title: Improvements in or relating to gland joints for plumbing systems
Inventor: ROGER PERCY NATHANIEL
IPC: F16L23/028
Filed: 1953-06-25
Abstract: 746,852. Pipe joints. FEDERATED FOUNDRIES, Ltd. Sept. 3, 1954 [June 25, 1953], No. 17622/53. Class 99(1). In a stufhng-box plumbing joint the rubber or like gland ring 10 and its coacting recess are of stepped form. A double joint having ring expanders 11 and ring recesses in a loose member 9 which may have wall fixing lugs is shown but the joint may be single for connection of one or more pipes to an aperture in the wall of a waste pipe and formed with or having gasketted thereabout a suitably recessed aluminium or cast-iron socket shaped to accommodate one or more gland rings expanded by a single member with one or more annular projections. The Provisional Specification refers to the application of the invention to a single spigot- and-socket joint.
Patent GB-509367-A (GB)
Title: Improvements in or relating to methods of making reinforced rubber products and to rubber products produced thereby
IPC: B29C70/06
Filed: 1938-06-14
Abstract: 509,367. Woven fabrics. FIRESTONE TYRE & RUBBER CO., Ltd. June 14, 1938, No. 17643. Convention date, June 21, 1937. [Class 142 (iv)] [Also in Groups V and VIII] In making re-inforced rubber products such as pneumatic tyre casings a fabric formed of warp strands 10 of twisted cords of cotton, rayon, &c. and weft threads 11 of unvulcanized rubber rendered inextensible by treatment with a water-soluble medium such as glue, casein, &c. is used. The extensibility of the weft threads is restored by immersion in water or in rubber latex which impregnates all the strands with rubber. The fabric is coated with plastic rubber and is vulcanized after building a structure in several plies.
Patent GB-1352171-A (GB)
Title: Hydrazonium salts and their use as plant growth regulators
IPC: C07D295/30
Filed: 1971-05-27
Abstract: 1352171 Hydrazonium salts FUJISAWA PHARMACEUTICAL CO Ltd 27 May 1971 [11 June 1970 25 July 1970] 17680/71 Heading C2C The invention comprises compounds of the formula where R 1  is hydrogen, lower alkyl or hydroxylower alkyl; R 2  is optionally substituted alkenyl, or cycloalkenyl, cycloalkenyl-lower alkenyl, a heterocyclic group containing oxygen, or a methyl, ethyl, propyl, isopropyl, 1-methylpropyl, butyl, isobutyl, pentyl or hexyl radical substituted by one or more of lower alkoxy, cyano, carboxyl, hydroxy or lower alkoxycarbonyl; or R 1  and R 2  together form a cycloalkyl, cycloalkenyl or a 3,5,5-trimethyl-2-cyclohexenyl group; R 3  and R 4  are each lower alkyl radicals which may be linked to form, with the N, a heterocyclic group; R 5  is lower alkyl; and X is halogen (" lower " meaning containing up to 6 carbon atoms); their production by reacting R 1 R 2 C=NNR 3 R 4  with R 5 X; and plant growth regulating compositions containing them together with conventional ingredients.
Patent GB-996691-A (GB)
Title: Locking mechanism for a mineral cutting bit
IPC: E21C35/19
Filed: 1964-04-29
Abstract: 996,691. Mineral-mining cutter pick mounts. G. W. ELDERS. April 29, 1964, No. 17723/64. Heading E1F. The latch means for locking a mineralmining cutter pick 14 in a holder 21 comprises a pin 33 secured in a resilient block 26 retained in the holder 21 in an aperture 22 that is reduced intermediate the ends to provide outwardly and inwardly facing shoulders 24, 25 which are engaged by complementary reduced portions of the block.
Patent GB-507381-A (GB)
Title: Improvements in or relating to cathode-ray tubes
IPC: H01J29/18
Filed: 1938-06-14
Abstract: 507,381. Luminescent screens for discharge tubes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 14, 1938, No. 17731. Convention date, June 17, 1937. [Class 39 (i)] A Braun tube comprises a metal layer between the fluorescent material of the luminous screen and the glass wall of the tube, the latter being satin-frosted on the side provided with the metal layer, and the metal layer is formed by evaporation or cathodic disintegration in such thickness that the externally incident light is absorbed to a greater extent than the fluorescent light passing through the metal layer. The metal layer may be made of a metal belonging to the eighth group of the periodic system, and is preferably rhodium, especially when phosphoric acid is the binder. Tungsten or molybdenum may also be used. Nitrocellulose may be used as a binder. The conductive layer may extend beyond the screen and serve to collect electrons.
Patent GB-1460260-A (GB)
Title: Apparatus and process for moulding hollow foundry cores
IPC: B22C17/00
Filed: 1975-04-29
Abstract: 1460260 Moulding hollow foundry cores FOMES SA FOUNDRY & METALLURGICAL SUPPLIES CORP 29 April 1975 [8 May 1974] 17790/75 Heading B3G In a process of moulding a hollow foundry core 35 about a core member 22 and automatically separating the hardened core from the member, the two opposed parts of a die 1<SP>1</SP>, 1<SP>11</SP> are brought together to provide at least one mould cavity 2 therebetween in each of which a member 22 is located and fixed to a support 21. Material is blown into the cavities and hardened, e.g. by a gas fed into the cavities, whereupon the die parts are separated and the support 21 pivoted about a horizontal axis to bring each hardened core adjacent a conveyor 23 whereby a web 24 thereon removes the cores. The support is carried by the stem 20 of a jack 19 carried by a bracket 18 pivoted to the lower ends of arms 12, 15 carried by spring urged rods 4-7 slidably supported in die part 1. On die closure, the rods and the assembly supported thereby are urged against the action of springs 8-11 from the position of Fig. 1 to bring the core members within the mould cavities. On die opening, rods 29, 30 attached to the die part I<SP>11</SP> effect the pivoting, against the action of a spring 31, of links 26 and hence the bracket 18 and support 21 to bring the core members adjacent the conveyer.
Patent GB-248802-A (GB)
Title: Improvements in and relating to dyes and dyeing
IPC: C09B7/00
Filed: 1924-07-25
Abstract: 248,802. Jones, J. I. M., Wylam, B., Morton, J., and Morton Sundour Fabrics, Ltd. July 25, 1924. Leuco compounds of vat-dyes, esters of.- Leuco compounds of vat-dyes are converted into stable derivatives by treatment with phosphorus oxychloride or alkylphosphoric halides in the presence of a suitable basic body, tertiary amines being specified: the reaction may be carried out in presence, of a solvent or diluent such as monochlorbenzene or carbon disulphide. Examples are given of the preparation of compounds from the following :-leuco flavanthrone, and phosphorus oxychloride in presence of carbon disulphide and pyridine; leuco indanthrone and phosphorus oxychloride in presence of chlorbenzene and pyridine; leuco indanthrone and methylphosphoric dichloride in presence of pyridin. Leuco compounds of the dyes of the indigo, thioindigo, and anthraquinone series generally are also specified as parent materials. Specifications 186,057 and 245,587 are referred to. Methylphosphoric dichloride is obtained by treating methyl alcohol with phosphorus oxychloride, and fractionally distilling the product, first under reduced pressure and then at ordinary pressure.
Patent GB-375541-A (GB)
Title: An improved nipple for nursing bottles, and a method of manufacturing the same
IPC: A61J11/00
Filed: 1931-06-19
Abstract: 375,541. Moulding teats for feeding- bottles. BROWN, F., 4629, Adams Avenue, Philadelphia, U.S.A. June 19, 1931, No. 17821. [Class 87 (ii).] A mould for making teats for feeding bottles comprises complementary members 10, 11 relatively positioned by dowel pins 15, and a ring 13 which forms a groove in the base of the teat and serves to space the core member 12.
Patent GB-721493-A (GB)
Title: Improvements in or relating to modified lard and process of making the same
Inventor: NORRIS FRANK ARTHUR
IPC: A23D7/00
Filed: 1952-07-15
Abstract: An improved lard has its normal X-ray diffraction pattern permanently transformed to that of hydrogenated vegetable oil shortening, i.e. its crystalline properties are changed to give it the creaming ability and appearance of such shortening.  The lard may be so modified by heating the rendered lard in the presence of a small amount of a crystal-modifying catalyst under temperature and time conditions to effect the above alteration.  The catalyst may comprise certain inorganic or organic salts, and certain other compounds and elements.  The inorganic salts specified comprise salts of tin, zinc, lead, cobalt, iron, antimony, cadmium, nickel, mercury, bismuth, aluminium and magnesium, usually halides, sulphates, acetates, carbonates, nitrates and, exceptionally, stearates and nitrides. Oxides, hydroxides and peroxides of these p  metals are also specified, as well as sodium hydroxide and sodium hydride.  The compounds used in examples are stannous hydroxide and zinc acetate. The organic salts specified comprise alcoholates of mono-, di-, and poly-hydroxy alcohols, sodium, potassium, lithium, magnesium and calcium salts being specified. Sodium amide is also specified.  In examples, sodium methoxide and sodium glycerolate are used. Dispersions of alkali metals, such as sodium, may also be used.  The amount of catalyst comprises .01 to 3 per cent. of the weight of the lard and may be added dry or in solution or suspension or mixed with a solid carrier, such as kieselguhr.  The time of treatment varies between three minutes and six hours and the temperature between 50 DEG C. and 260 DEG C.  The modified lard may be mixed with other fats, such as a hydrogenated vegetable oil fat, to form shortening products.  A margarine product may be prepared from an emulsion of milk fluid and a fatty material containing at least 25 per cent. of the modified lard.
Patent GB-407918-A (GB)
Title: Improvements in and relating to electric illuminating apparatus
IPC: H05B41/18
Filed: 1932-06-24
Abstract: 407,918. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Westendorp, W. F. ; 32, North Ferry Street, Schenectady, New York, U.S.A.) June 24, 1932, No. 17930. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 27, 1932]. [Class 39 (i).] Installations for producing light without visible flicker from single-phase A.C. supplies comprise a lamp 1 with anodes 3, 4 connected to the sides of the supply 7 through resistances 5, 6 and with a cathode 2 connected to the supply 7 through an inductance 22 and rectifying means such as two further discharge lamps 10, 11. The lamp 1 may be replaced by two single-anode lamps. The cathodes 12, 13 of the lamps 10, 11 are connected to the sides of the supply and the anodes 14, 15 to the inductance 22. The lamps 10, 11 may be provided with starting anodes 19 as described in Specification 403,428, resistances 20 of 2000, 1000 500 and 250 ohms respectively being connected to the anodes 19. The lamps may be filled with argon, neon, helium, krypton, xenon, mercury or sodium or mixtures and may have quartz envelopes. To obtain daylight, the lamp 1 may be filled with mercury and the lamps 10, 11 with neon. When the switch 8 is closed, the cathodes 12, 13 heat up, their heaters being connected across the supply 7. The cathode 2 is also heated up by current flowing through resistances 26, 28 and through opposed coils 24, 27 on the core 25 of the inductance 22 so that the armature 33 is not attracted. When the discharge in one or both of the lamps 10, 11 starts, current in the coil 23 causes attraction of the armature 33 and operation of a mercury switch 29 to break the heating circuit of the cathode 2, the induction kick starting the lamp 1 or the switch 29 being repeatedly operated until the lamp starts.
Patent GB-179432-A (GB)
Abstract: 179,432. Wilton, W. P. May 5, 1921. Riding-saddles; lining- materials.-Saddle numnahs of leather or felt are provided with a lin ing A of india-rubber sponge cut from a sheet and of sufficient size to rest upon the withers and along or across the back of the horse. Specification 16612/10 is referred to.
Patent GB-1103097-A (GB)
Title: Improvements in methods of driving through subterranean rock strata in the production of vertical slots dug into the ground
IPC: E02F5/02
Filed: 1966-04-25
Abstract: 1,103,097. Excavating of trenches. JOSEF RIEPL. 25, April, 1966 [23, April, 1965], No. 17951/66. Heading E1F. A method' of forming trenches in ground having rock strata underlying soft earth strata involves drilling parallel bores through the rock stratum or strata before or after removal of the soft stratum or strata and percussively shattering the rock stratum when exposed so that the shattered rock can be easily removed. Preferably the trench as it is being formed is filled with a thixotropic suspension to prevent cave in.
Patent GB-1500107-A (GB)
Title: Rotary sliding-vane liquid pump
IPC: F01C1/344
Filed: 1976-05-03
Abstract: 1500107 Rotary positive displacement pumps DAIMLER-BENZ AG 3 May 1976 [13 June 1975] 18010/76 Heading F1F To reduce noise in a rotary pump having sliding vanes 4, due to wobbling of the rotor 3 the latter is mounted on a shaft 2 by positive connection means (splines 30) allowing axial freedom, and divided into two parts adjacent the axial end-faces of the rotor. The rotor is located axially by endplates 5, 6, the upper one being pressure loaded by a spring 12 and the pumped liquid in outlet chamber 14, which communicates with the pumping chambers via passages 26. An annular inlet chamber 15 is connected to the pumping chambers via passages in end-plates 5, 6. The central housing member 7 has an oval contour.
Patent GB-515931-A (GB)
Title: A safety device for motor turntable ladders, masts, support-beams and the like
IPC: E06C5/36
Filed: 1938-05-31
Abstract: 515,931. Ladders. KLOCKNER-HUMBOLDTDEUTZ AKT.-GES. May 31, 1938, No. 18027. Convention date, May 31, 1937. Divided out of 515,428. [Class 20 (ii)] [Also in Group XXI] Relates to safety devices for motor turntable ladders, masts, and the like, and consists in means for disconnecting the ladder-operating gear in case of excessive tilting of the ladder. The turntable comprises a fixed part 2, a rotary part 3, and a plate 7 which supports the ladder frame 5 and is held against knife edges 91, 92 on the part 3 by springs 89, 90, shown respectively as leaf and torsion springs. If the ladder tilts forwardly or rearwardly, the plate 7 tilts about the knife edge 91, or 92, against the action of the springs, to an extent limited by stops 10, 11. Such tilting acts, through a lever 14 or 15 and link 36 or 29, to disconnect the ladderoperating gear. The knife edge 91 is arranged in front of both springs, and the edge 92 between the springs, so that the springs, act in combination to resist forward tilting, and in opposition to resist rearward tilting.
Patent GB-872795-A (GB)
Title: Polymer coating process
IPC: C09D5/46
Filed: 1959-05-27
Abstract: Heated articles are coated with polymer and solid additive in a fluidised bed of finely divided thermoplastic polymer to which a powdered solid additive is added.  Suitable plastics are polyolefins, mixtures of polythene with polyisobutylene, polystyrene, the copolymer of styrene and acrylonitrile, polyacrylates and polyamides. The additive may be a filler or pigment such as carbon black, titanium dioxide, cadmium sulphide, chrome yellow, zinc oxide, or an iron blue pigment, or an anti-oxidant.  Articles may be coated, partially masked, then further coated to produce multi-colour effects.  Specifications 795,177, 804,641 and 804,642 are referred to.  Reference has been directed by the Comptroller to Specifications 759,214 and 807,238.
Patent GB-357096-A (GB)
Title: Improvements in or relating to electrostatic condensers for wireless apparatus
IPC: H01G5/38
Filed: 1930-06-12
Abstract: 357,096. Condensers. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, MASKEL, W. A. C. and McAINSH, N. J., of General Electric Co., Stoke, Coventry. June 12, 1930, No. 18037. [Class 38 (ii).] In a gang of variable condensers 10 having a common control means, a separate trimming condenser for each unit includes a resilient separate from the main condenser plates and mounted on a conducting plate forming part of a metallic casing carrying and enclosing the condensers. Adjusting means are provided arranged to bear on the free edge of the resilient plate to vary the trimming capacity. In the example the resilient plate 20 is supported on an end or separating plate 1, 3 of the casing and is insulated from it by a sheet of dielectric 21. Plate 20 would be electrically connected to the fixed series 14 and the end- or separating plate, which would be earthed, would form the other electrode of the trimming condenser. Adjustment is effected by means of a screw bearing on the plate 20 and rotatable by means of a wheel 23 through a suitable aperture 24 in the side plates of the casing 19.