baber/WOPTO huggingface dataset:
Patent GB-450948-A (GB)
Title: Improvements in electric incandescent lamps and discharge tubes
IPC: H01J9/30
Filed: 1934-10-19
Abstract: 450,948. Soldering. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Oct. 19, 1934, No. 29998. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 1, 1935]. [Class 83 (iv)] [See also Groups XL and XI] A cap for an electric discharge tube or incandescent lamp is in two parts which are secured together by solder 4. The solder is melted by three-phase alternating - current introduced by three electrodes 3 which serve as a holder for the cap during the operation.
Patent GB-519464-A (GB)
Title: Improvements in or relating to means for suppressing radio interference produced by electrically propelled vehicles
IPC: H04B15/02
Filed: 1938-10-17
Abstract: 519,464. Protective arrangements for supply systems. GENERAL ELECTRIC CO., Ltd., and BLOCH, A. Oct.- 17, 1938, No. 29998. [Class 38 (iv)] Radio interference suppression.-To reduce radio-interference from the intermittent contact of the trolley poles or collectors with their wires or rails due to the jolting or vibration of an electrically propelled vehicle, an effect which is more marked when the vehicle is coasting and the only load taken is the small lighting and similar loads which being non-inductive are rapidly made and broken, an inductance is connected permanently in series with these circuits so as to promote the formation of arcs when these circuits are broken.
Patent GB-484213-A (GB)
Title: Improvements in or relating to pneumatic percussive tools
IPC: B25D9/14
Filed: 1936-11-04
Abstract: 484,213. Valve - gear for percussive tools. BROOM & WADE, Ltd., and BROOM, H. Nov. 4, 1936, No. 30058. [Class 122 (ii)] In a pneumatic tool, particularly a pneumatic road breaker, with a plate distributing- valve and a pair of co-operating cylinders of different diameters, a plate valve of annular form works in an annular chamber surrounding the head of the cylinder of smaller diameter, controls the admission, and is operated by fluid pressure. The piston has two heads 7, 3 separated by a reduced portion 8. The lower head 3 controls the exhaust 6 towards the bottom of the cylinder. Blocks 12, 13 with a liner through which the small piston passes are spaced above the cylinder 9 and are separated by rings 14, 15. The space 16 houses a ring- shaped, plate, lift valve 17. A chamber 18 to which air is supplied by a lever-operated, spring- pressed valve 20, is arranged above the cylinder. Passages 24, 25 in the block 13 supply air to the spaces between the blocks. The space 16 is connected to the forward cylinder-end passage 28 by a V-shaped conduit 26. Similarly a V-shaped conduit in the lower ring 12 connects the space between the rings 13, 14 and the chamber 16. Further valve-controlled conduits 31, 32 extend from the chamber 16 to the lower cylinder. A conduit extends from below the rings 14, 15 to a groove in the cylinder 9. When air is supplied to the piston placed as shown in the Figure, the piston is raised until the exhaust is again opened. The cylinder compression raises the valve. Air then acts upon the small end and the annular area of the piston and effects the power stroke. When the lower end of the piston 7 passes above the groove 38, air passes by grooves 24, 33, 34 to the cylinder 5 to assist the stroke. When the exhaust 6 is opened, the valve is reversed. In a modification, the valve moves oppositely relative to the piston to that shown. The cylinder 9 has another groove communicating with the lower side of the valve so that fluid is passed to the lower side of the piston to build up pressure to effect the reversal before the end of the power stroke. The valve and seat may be of curved or conical formation.
Patent GB-720299-A (GB)
Title: Improvements in or relating to electrical apparatus
Inventor: WALKER IAN FREDERICK MACEY
IPC: H01F41/04
Filed: 1951-12-22
Abstract: 720,299. Transformers and inductances; electric coils. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Dec. 22, 1952 [Dec. 22, 1951], No. 30069/51. Classes 35 and 38 (2). Electrical apparatus comprising windings in the form of a plurality of superimposed layers having no heat-sensitive insulating materials associated therewith has the windings 18, 20, 21 formed of oxide-coated aluminium wire, a preformed metal layer 19 or 22 being arranged in close proximity between at least two of the winding ayers. Thus heat is rapidly onducted from the windings which can be operated at temperatures in excess of those associated with normally constructed windings. The windings may be wound on an oxide-coated metal former 10 which may comprise a number of parts, such as 13, 14, and be surrounded by an oxide-coated metal strip 23. The assembly may be housed in a metal container containing stabilized chlorinated diphenyl, the space above which liquid contains a gas such as sulphur hexafluoride or carbon tetrafluoride.
Patent GB-627994-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/143
Filed: 1946-10-09
Abstract: 627,994. Cutting slices in succession. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd. (Maatschappij van Berkel's Patent N.V.). Oct. 9, 1946, No. 30123. [Class 28(ii)] In a disc knife slicing machine having a gauge 29 arranged beside the slicing knife in a plane slightly behind and parallel to the slicing plane, a slice thickness regulator 30 operatively connected to the gauge is also adapted to adjust the gauge through two ranges of slice thicknesses, and the feed mechanism has a slice thickness control device that is operatively connected to the regulator throughout the range of larger slice thicknesses only. As shown the carriage 3 is fitted with a feed plate 9 to which the substance may be clamped by clamp 8 or across which the substance may be hand fed. The feed plate has a saddle nut 10 engageable with a feed screw 10A having a ratchet-wheel 11 operated by a pawl 12. The pawl is carried by a lever 13 on the feed screw axis which has a tail 14 co-operating with a stationary striker 15 on the base 7. The slice-thickness control device comprises a cam 16 turnable below the pawl 12 about the feed screw axis and engageable with a pin 17 on the pawl. The gauge 29 is adjusted by a regulator 30, and associated with the feed mechanism through a rod 25 having at one end a roller 28 cooperating with the gauge plate and at the other a rack 27 meshing with a pinion 24. A stop 32 is also provided on the rod 25. A further rod 22 slidable in bearings 20 has a rack 21 meshing with the pinion 24. At the other end of this rod is another rack 19 meshing with the pinion 18 on the cam 16. A spring 23 urges the rod 22 away from the feed mechanism, thus urging the rod 25 towards the gauge plate 29 to the extent allowed by stop 32, so that for the range of lesser slice thicknesses the cam 16 to set by the position of the gauge plate. For greater slice thicknesses beyond the capacity of the feed mechanism, a suitable range is available by virtue of the gauge plate, the feed mechanism then being rendered idle by disconnecting the saddle nut 10A. Specifications 404,737 and 456,621 are referred to.
Patent GB-323823-A (GB)
Title: Improvements in or relating to arrangements for amplifying electrical oscillations
IPC: H03F1/36
Filed: 1928-10-18
Abstract: 323,823. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Oct. 18, 1928. Thermionic amplifiers. - Undistorted amplification, independent of the frequency of the source 6, both in phase and amplitude, is obtained by feeding- back to the input a definite fraction of the output voltage, as tapped off from a resistance R2, R1 shunted across an impedance 5. The amplification may, however, be made dependent on the input frequency, both in phase and amplitude, by replacing the resistance Rl, R2 by an impedance; or upon the input amplitude by inserting a discharge tube or other device having a curved characteristic in the return coupling to the input. Linear amplification of a direct or slowly-fluctuating voltage obtained by superposing this upon a high- or medium-frequency carrier wave coupled to the common input, and after amplification and rectification, feeding back a definite fraction of the output voltage as before. If the feed-back gives rise to spontaneous oscillations, a phase-reversing impedance is inserted in the grid circuit.
Patent GB-878746-A (GB)
Title: Transalkylation of organo-metallo compounds
IPC: C07C1/32
Filed: 1958-09-22
Abstract: A process for the transalkylation of organometallic compounds while inhibiting the formation of dimers comprises reacting said compound with an olefin while maintaining less than 6%, preferably less than 3% by weight of said olefin in said organometallic compound throughout the reaction period.  The organometallic compound may be of the formula RxMHy where R is substituted or unsubstituted alkyl, aryl, alkaryl, aralkyl, cycloalkyl, alkenyl, aralkenyl or cycloalkenyl radical having 2 to 35 carbon atoms, M is a metal, preferably aluminium, antimony, bismuth, cadmium, copper, gallium, germanium, indium, lead, tin, mercury, thallium or zinc, (x+y) is the valency of M and y is 0 or 1.  Preferred olefines have 2 to 40 carbon atoms in the molecule.  At least 1/100% by weight of olefin should be present throughout the reaction period.  In order to facilitate the reaction and maintain the concentration of olefine within the desired limits it is preferred to maintain the organo-aluminium compound in the liquid phase and the olefin in the gaseous phase. Thus it is preferred to carry out the process at a temperature between 0 DEG and 300 DEG C., a pressure from 1 mm Hg to 1000 lbs/sq inch absolute and a reaction period from 0.1 to 30 hours.
Patent GB-1148899-A (GB)
Title: Water-soluble rubbery polymers
IPC: C08C19/40
Filed: 1966-07-05
Abstract: 1,148,899. Reacting epoxidized polymers with amines. MINNESOTA MINING & MFG. CO. 5 July, 1966 [6 July, 1965], No. 30211/66. Headings C3E, C3P and C3Q. [Also in Division B2] A water-soluble rubbery polymer is made by reacting a water-insoluble polymer of a conjugated diene with an epoxidizing agent and then reacting the epoxidized polymer with a water-soluble secondary amine. Suitable polymers are natural or synthetic polyisoprene, polybutadiene, and butadiene: styrene or acrylonitrile rubbers. Suitable amines are morpholine, di-methyl-, -n-propyl-, -butyl-, and ethanol - amine, N - methylbenzylamine and piperidine. The polymers may be mixed with tackifying agents such as N,N,N<SP>1</SP>,N<SP>1</SP>- tetrakis(2 - hydroxy - propyl)ethylene diamine in the production of water-activable pressure sensitive adhesives.
Patent GB-463391-A (GB)
Title: Machine for twisting profile wires
IPC: B21F7/00
Filed: 1936-11-06
Abstract: 463,391. Twisting wire. SCREW-NAIL SYNDICATE AKTIESELSKABET. Nov. 6, 1936, No. 30290. Convention date, Nov. 7, 1935. [Class 83 (iv)] In a machine for axially twisting profiled wires 1 fed through profiled rolls 11, 12 and about a profiled roll 13 to a spool 2, the roll 13 is placed nearer to the rolls 11, 12 than to the spool 2. The twisting is effected between the rolls 11, 12, 13. A change-speed gear 10 is used for rotating the spool 2.
Patent GB-684727-A (GB)
Title: Improvements in and relating to means for initiating the arc in a mercury-pool tube
IPC: H01J13/02
Filed: 1950-12-13
Abstract: 684,727. Metal-vapour discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 13, 1950 [Dec. 30, 1949], No. 30445/50. Class 39(i) [Also in Group XXXV] In a mercury-pool device with a capacitative igniter comprising a conductor surrounded by an insulating sleeve, the mercury contains an additional element to produce wetting of the insulator preferably one or more of the elements, Mg, Ni, Pb, A1, Cu, Ag, Au, Sn, In, Zr, Ta, Ti. In one form, a re-entrant part 8, Fig. 1, of the mercury container has sealed thereto a sleeve 9 of glass or a ceramic such as aluminium zirconium oxide or zirconium silicate; the space between the sleeve and the ignition rod 10 is packed with steel wool or the sleeve may be a coating on the rod. The mercury wetting agent may be 1 part each of magnesium and nickel in 500,000. Sleeve dimensions and starting voltages are specified. In the case of a metal container, the ignition rod is bonded to a metal cap which is sealed to the envelope through a glass cylinder and a metal sleeve. The insulating sleeve rests on a shoulder of the metal cap and is bonded to the internal surface of the glass cylinder. The voltage required by the igniter is as low as 500-1000 volts, and is supplied by a condenser discharge circuit (see Group XXXV).
Patent GB-1223466-A (GB)
Title: Improvements in or relating to hydraulic selector valves
Inventor: SADLER FRANCIS ANTHONY DAWSON
IPC: F16K11/16
Filed: 1968-06-26
Abstract: 1,223,466. Valves; fluid pressure brakes. GIRLING Ltd. 26 June, 1969 [26 June, 1968], No. 30554/68. Addition to 1,208,445. Headings F2F and F2V. A selector valve I, which is adapted to permit simultaneous or selective actuation of wheel brakes on the opposite sides of a tractor, comprises an inlet 2 which is connected to the brake master cylinder, two outlets 12 which are connected to the respective brake slave cylinders, a manually-operable selector 14, and two valve members 7 each of which carries a piston 80 and has associated therewith an actuator 4. In operation, upon turning the selector 14 clockwise, as seen in the drawing, the left hand side valve member 7 is caused through the intermediaty of its associated actuator 4, to be seated and hence the left-hand side chamber 3A to be isolated from the inlet 2. Upon the valve attaining this state, pressurized fluid passes from the inlet, into the other chamber 3A, and hence to the right hand side outlet passage 12A, this latter passage extending between the outlet 12 and the left hand side chamber 3B. As a result of the passage of pressurized fluid into chamber 3B, the seating force acting on the closure member 7 is increased and both the actuator 4, and the selector 14 are returned to their neutral positions, shown. Subsequent to the pressure of the supply being reduced, closure 7 is unseated by its associated spring 13A or should this fail, by the inlet pressure when the other valve member is brought against its seat by appropriate manipulation of the selector 14.
Patent GB-446274-A (GB)
Title: Improvements in fuel injection devices for internal combustion engines
IPC: F42C15/24
Filed: 1934-10-25
Abstract: 446,274. Fuel injectors. MILLER, J., BROWN, W., and REBBECK, F. E., c/o Harland & Wolff, Ltd., Queen's Island, Belfast. Oct. 25, 1934, No. 30582. [Class 7 (iii)] An annular space K through which a cooling- medium is positively circulated is formed between a nozzle member B and a clamping- nut E which secures it to the injection device A. Packing-rings L, O prevent leakage from the annular space to the joint M and to the fuel-supply passage F, and a peripheral groove P around the nozzle member communicates with a passage Q in the injection device to intercept fuel leaking from the fuel-supply passages to the space K.
Patent GB-501265-A (GB)
Title: Improvements in or relating to casement windows and analogous structures
IPC: E06B3/10
Filed: 1938-10-22
Abstract: 501,265. Window and door frames. FACER, JUN., H. Oct. 22, 1938, No. 30614. [Class 20 (iii)] The sill 1 of a casement window, or like structure, is provided with an undercut groove 15 disposed in such a way that any water driven up the sill into the groove is deflected downwards back onto the sill and so prevented from penetrating between the sill and the bottom rail 3 of the sash or the like. The sill is formed in two portions la, 1b, secured together by means of a tongue- and-groove or like joint, a semicircular groove 15a being provided in the underside of the upper portion la, and an approximately quadrantal groove 15b in the lower portion lb between the sloping portion 13 and the upper face thereof. The portion of the sill above the groove 15 is shaped to form a drip bead 17. Specification 304,908, [Class 20 (iii)], is referred to.
Patent GB-227262-A (GB)
Title: Improvements in muffle and the like furnaces
IPC: F27B5/00
Filed: 1923-12-06
Abstract: 227,262. Coggon, H. F., and August's Muffle Furnaces, Ltd. Dec. 6, 1923. Muffle furnaces.-The grate or combustion hearth 1 is of greater length than the floor 3 of the muffle in order that the intensity of heat on the front and rear edges 2, 2<a> of the floor may be arranged to be equal to that along the remaining part of the floor of the muffle. In the case where oil or gas burners are used instead of solid fuel, the equalization of heat is obtained by extending the burners beyond the rear and front edges of the muffle floor. The furnace gases pass around the muffle and into the flues 7, 8 to the usual chimney 9. Specifications 13016/11 and 11386/13 are referred to.
Patent GB-464908-A (GB)
Title: Improvements relating to pellicles for sealing bottles or other containers
IPC: B29D99/00
Filed: 1936-11-10
Abstract: Caps, rings, bands, and pellicles generally of regenerated cellulose, cellulose esters and ethers, gelatine, casein, &c., such as are used for sealing bottles and other containers, contain a soluble nitrite particularly an alkali or alkaline earth nitrite in order to obviate rust-staining when in contact with iron surfaces.  The nitrite may be dissolved in the dilute glycerine solution in which the pellicles are normally stored; and the amount may be 0,1--3,0 per cent.  The solution may also contain a preservative such as chlorinated cresol. In the case of dyed pellicles, the nitrite prevents bleeding of the dye.
Patent GB-873216-A (GB)
Title: Olefin polymerization process
IPC: C08F10/00
Filed: 1958-09-25
Abstract: A continuous process for the low-pressure polymerization of olefins, involving the use of a Ziegler-type catalyst in an organic diluent and resulting in the formation of a polyolefin slurry in the diluent, comprises temporarily applying excess heat to the exterior of the reactor so as to heat the polymer deposit on the interior wall of the reactor sufficiently to soften it but not so much as to heat the bulk of the agitated reaction mixture more than 50 DEG F. above the normal polymerization temperature, all the while continuing the introduction of feed and catalyst, agitating the reaction mixture and removing the polymer slurry therefrom, maintaining the excess heat until the softened polymer deposit is sloughed off into the turbulent reaction mixture and then readjusting the external heat transfer to the polymerization zone to restore the polymerization temperature in the reaction mixture.  Specified olefins are ethylene, propylene (preferred), butene-1, heptene-1 and isoprene.  Specified catalysts are titanium tetra- and tri-chlorides and zirconium tetrachloride with triethyl or trioctyl aluminium, aluminium diethyl chloride and aluminium ethyl sesquichloride.  A preferred catalyst is the preformed titanium trichloride, obtained by the reduction of titanium tetrachloride with hydrogen or aluminium and titanium, activated with aluminium triethyl.  Other catalyst details are given in Specifications 799,392, 799,823 and 810,023.  Specified diluents are n-heptane and xylene.  The reactor wall may be heated to 200 DEG -400 DEG F., while the excess heat is applied, for 0,5-30 minutes, e.g. by superheated steam.  The catalyst may be destroyed with an alcohol with or without a chelating agent, e.g. acetyl acetone.
Patent GB-1131182-A (GB)
Title: Process using metal peroxide catalysts
IPC: C08F4/30
Filed: 1966-07-08
Abstract: 1,131,182. Metal peroxides. SHIONOGI & CO. Ltd. 8 July, 1966 [9 July, 1965], No. 30753/66. Heading C1A. [Also in Division C3] Transition metal peroxides, e.g. of Ni, Co, Cu, Zn, Cd or Mn, are prepared by treating a watersoluble transition metal salt, e.g. a sulphate or nitrate, with an alkali metal hypohalite or persulphate in an aqueous alkaline medium, collecting the precipitate formed, and drying the collected material. The peroxides are used as initiators of polymerization (see Division C3) and nickel peroxide is preferred. The preparation of the nickel peroxide has previously been described in Specification 1,052,070, but the product is now stated to have the formula Ni 4 O 6 H 11 .
Patent GB-920428-A (GB)
Title: Ducting systems
Inventor: CHARLTON GEORGE HUBERT
IPC: B64C23/00
Filed: 1960-09-08
Abstract: 920,428. Jet propulsion plant. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Aug. 29, 1961 [Sept. 8, 1960], No. 30960/60. Class 110 (3). [Also in Groups XXVIII and XXXIII] Fig. 2 is a part view of jet-pipe ducting within an aircraft wing, in which each of three duct systems, fed from a common gas turbine engine (not shown) supplies a plurality of fish-tail nozzles 16. Each duct system comprises cylindrical sections 11, bifurcated sections 12, and for feeding the end nozzle of a system, an elbow section, the various sections being connected by joints as in Specification 899,964, these joints allowing relative axial and angular movements between adjacent sections. Each joint 14 between two sections 11, Fig. 3, is supported from the wing upper and lower skins 24, 25, by spigots 31, 32, having partspherical surfaces engaging bushes 33, 34, the latter being fixed and the former free to move in a fixed guide 36 so that radial expansion of the duct section is permitted. Each bifurcated section 12, Fig. 2, or elbow, is supported through a universal joint 41, 42 by a fixed tripod, legs 43 and 44 of which are shown. Each nozzle 16 is rigidly attached to a bifurcated section 12 or an elbow, and is further supported by two spigots 46, each engaged in a bearing block 47 in fixed support means 48, one bearing block being free for limited chordwise and spanwise movement. Thus, full provision is made for thermal expansion of the duct sections and nozzles, and flexing of the wing throws no load on to these components. The ducts and nozzles are covered with thermal insulation comprising a layer of refractory felt covered with dimpled stainless steel sheet painted with a high temperature paint, and provision is made for differential thermal expansion between the stainless steel sheet and the ducts or nozzles. The nozzles 16 are provided with internal splitters 15a to distribute the gas flow evenly, the splitters also acting as stiffeners. The bifurcated sections 12 are provided with baffles to divide the flow as required, and aerofoil section guide vanes are provided to assist in the change of direction of flow into the branches.
Patent GB-302786-A (GB)
Title: An improved ventilation means for closed vehicles and carriages
IPC: B61D27/00
Filed: 1927-11-18
Abstract: 302,786. Showell & Sons, Ltd., E., and Showell, C. P. Nov. 18, 1927. Stays.-Means for retaining one or both of a pair of hinged paneJs 8 in outwardly projecting position as shown in Fig. 2 consists of a pivoted lever 13 having diverging arms 13<a> which engage cam surfaces 8<b>, Fig. 5, on the lower portions of each panel. The cam surfaces 8<b> open into slots 8<c> in the panels. When the lever 13 is turned so that the end of one arm 13a enters a slot 8<c>, the corresponding panel 8 swings inwardly under the action of its plate hinge 9. The inner end of the lever 13 has a knob 14 within which is located a spring-pressed plunger adapted to engage positioning holes 16 in a bracket 12.