baber/WOPTO huggingface dataset:
Patent GB-841087-A (GB)
Title: Improvements in or relating to the hermetic sealing of containers for electrical devices
Inventor: CORCORAN JOHN CECIL WYBRANTS
IPC: H01L23/16
Filed: 1957-11-22
Abstract: 841,087. Soldering. GENERAL ELECTRIC CO. Ltd. Nov. 24, 1958 [Nov. 22, 1957], No. 36496/57. Class 83 (4). [Also in Group XXXVI]. In sealing an aperture 3 in a substantially flat metal part of a container 1 for an electrical device, the space within the container other than that occupied by the operative part of the device being substantially filled with an electrically insulating material which is either liquid at normal temperatures or is readily liquefied by the application of heat, a thin layer of metal of relatively low melting-point is formed on the outer surface of the metal part surrounding the aperture, and is then cleaned, a plate 19 of metal of relatively high melting- point is placed on the clean surface to cover the aperture, the thin layer is melted by passing an electric current momentarily between the plate and the metal part while at the same time holding the plate in position over the aperture and rotating the container and plate together so as to cause the molten metal to flow towards the periphery of the plate and while still rotating the container and plate together the molten metal is allowed to resolidify to bond the plate to the container over the aperture. A circular well 2, with a hole 3 at the bottom, provided at one end of a cylindrical copper cap 1, is filled with solder 4 without closing the hole and then a cylindrical recess 5 is cut therein by a cutting-tool with a pilot pin in the hole. The cap is chemically cleaned and the electrode system of a germanium transistor mounted on a copper skirt is placed in the cap and flanges 10, 11 on the skirt and cap are cold-welded. The assembly is vacuum baked and filled with wax 12 and a clean surface is produced at the bottom of the recess by a cutting-tool 13. The assembly is held in a chuck 17 rotatable by a motor 18 on one electrode 15, a thin dished tinned copper disc 19 is placed in the recess and the other electrode 16 is pressed against it. The motor rotates the chuck and current is passed between the electrodes for <SP>1</SP>/ 10  second to melt the solder which flows to the periphery of the disc. The current is switched off and when the solder has solidified the motor is stopped.
Patent GB-431200-A (GB)
Title: Improved mechanism for use in connection with ball cocks, float and lever actuated valves and the like
IPC: F16K31/18
Filed: 1933-12-29
Abstract: 431,200. Float - operated valves. ROSE, S. A. M., 111, Gray's Inn Road, and NEW, C. E., 20, Bucklersbury, Wallbrook, both in London. Dec. 29, 1933, No. 36544. [Class 135] In order to effect a more positive opening and closing of a valve 1 operated by a float 6 and lever 3, a member carrying a movable weight is so attached to the lever that the weight moves from one end to the other of the member at the extreme positions of the lever. In one form, the member comprises a tube 4 adjustably pivoted to a bracket 7 on the lever 3, and balls or rollers 5 placed within the tube roll from one end to the other thereof at the upper and lower positions of the float 6. By making the balls of suitably large diameter, their movement is cushioned by the air in the tube 4. A liquid may be used as a cushioning-medium. Instead of balls or rollers, mercury or a suitable solid material may be employed as the movable weight. The tube 4 may extend beyond the float 6.
Patent GB-522502-A (GB)
Title: Improvements in lighting fittings
IPC: F21S13/00
Filed: 1938-12-15
Abstract: 522,502. Street lighting. GENERAL ELECTRIC CO., Ltd., and SMYTH, J. B. S. Dec. 15, 1938, No. 36552. [Class 75 (iv)] Lamps with refracting panels 2, 3 giving a large amount of light in a horizontal direction have overhead reflectors 5 so as to use light going upwards to illuminate the lamp standards and areas adjacent thereto.
Patent GB-1442472-A (GB)
Title: Sizes for glass fibres
IPC: C03C25/26
Filed: 1974-08-20
Abstract: 1442472 Coved polymer particles as sizes OWENS-CORNING FIBERGLAS CORP 20 Aug 1974 [14 Nov 1973] 36589/74 Heading C3P [Also in Division D1-D2] Glass fibres are sized with an aqueous emulsion of a polymer whose core consists of a polymer of a methacrylate at least 5% by weight of whose units are derived from methyl methacrylate and whose shell consists of a polymer having a Tg # 10 C. Suitable shell materials are polyvinyl acetate, poly-N,N,N-trimethylaminoethyl methacrylate methyl sulphate, polybutyl acrylate, poly-2-ethylhexyl acrylate, polybutadiene, polylauryl methacrylate, vinyl acetate-dibutyl maleate copolymer, and vinyl acetate-2-ethyl hexyl acrylate copolymer. The particles are made by emulsion polymerizing the core then by emulsion polymerizing the shell on the core using standard techniques. The size can contain all the conventional ingredients.
Patent GB-397003-A (GB)
Title: Improvements in antifriction bearings for sliding doors, windows, panels, and the like
IPC: E05D15/06
Filed: 1932-12-24
Abstract: 397,003. Rectilinear-motion bearings. PYCOCK, H. J., 26, Ritchings Avenue, Walthamstow, London. Dec. 24, 1932, No. 36606. [Class 12 (i).] An antifriction bearing for sliding doors, windows, panels, &c. comprises two interengaging sheet metal casing elements A, B which surround a fixed cylinder L containing a ball assemblage m, k. The single large ball k projects from the casing to ride on a metal track T, and bears at its inner part on a ring of balls m positioned by a pressed-in dome f in the element A. Extensions El of the element A reach below the track T to guide the moving door &c.
Patent GB-872708-A (GB)
Title: Pyrrolo-[2, 1-ª-]-isoindoles and process for the production thereof
Filed: 1959-10-30
Abstract: The invention comprises compounds of the tautomeric general formulae <FORM:0872708/IV (b)/1> wherein X represents -CO- or -CO.O-and R1 and R2 represent hydrocarbon radicals which can be interrupted by oxygen and in which any aromatic ring present can be substituted by halogen atoms or nitro groups and the preparation thereof by treating a compound of the general formula <FORM:0872708/IV (b)/2> wherein R3 represents a radical corresponding to R1 and R2, in a liquid medium, with ammonia. g -Phthalimido-b -keto-carboxylic acid esters and g -phthalimido-b -diones of the above general formula are prepared by condensing an a -phthalimido-carboxylic acid halide of the general formula <FORM:0872708/IV (b)/3> wherein Y is chlorine or bromine, by means of a metal of the first or second group of the Periodic Table or by means of a derivative of such a metal, with a b -keto-carboxylic acid ester or with a b -diketo compound of the general formula <FORM:0872708/IV (b)/4>
Patent GB-1364691-A (GB)
Title: Anion exchangers
IPC: B01J47/00
Filed: 1971-08-06
Abstract: 1364691 Anion exchange resins containing amine oxide groups BAYER AG 6 Aug 1971 [8 Aug 1970 9 Oct 1970] 37112/71 Heading C3P Anion exchange resin matrices have attached to them, amine oxide groups. The exchangers may be prepared by treating an anion exchange resin containing tertiary amino groups with an oxidizing agent such as H 2 O 2 , or an organic or inorganic peracid such as peracetic, perbenzoic and persulphuric acids, which oxidizes the tertiary amine groups to amine oxide groups. The final exchange resins may contain quarternary ammonium groups in addition to the amine oxide groups. Such groups may already be present (in which case they are not affected by the oxidation), or can be introduced by alkylating tertiary amino groups left by incomplete oxidation. If such groups are present, they should be in the minority. In the examples the following ion exchangers are oxidized by hydrogen peroxide: (1), (2), (6) and (7) a styrene/ divinyl benzene matrix which has been amino methylated, and then methylated with HCHO/ HCOOH; (3) as in (2) but in which the polymer is also quarternized with methyl chloride; (4) a chloromethylated, aminated (with diethylamine) styrene/d.v.b. matrix; and (5) a macroporous methyl acrylate/dv.b./trivinylcyclohexane copolymer, aminated with N,N-dimethyl- 1,3-propylene diamine. The final anion exchanger of example (7) also contained quarternary ammonium groups which had been introduced after incomplte oxidation of the t-amino groups.
Patent GB-508659-A (GB)
Title: Improvements in and relating to electric condensers for measuring dielectric constants
IPC: G01R27/26
Filed: 1938-12-21
Abstract: 508,659. Measurement of dielectric constant. O'DELL, A. E. (Haardt & Co., Akt.-Ges.). Dec. 21, 1938, No. 37172. [Class 37] An electric condenser for measuring the dielectric constant of solid substances in the form of plates, bands, or the like has deformable metal electrodes carried on flexible supports adjustable relative to one another by micrometer screw and surrounded by rigid tubular screens, which form abutments allowing of only limited deformation of the electrode supports. In the Figure, electrodes 3, 9 attached to the flexible supports 2, 8 are adjustable relative to one another by means of micrometer screw 13. Rigid screens 5, 6, 11, 12 serve also as abutments limiting the movement and gripping the test body 7. Conductors 4, 10 connect the electrodes to suitable terminals in the insulating base 1.
Patent GB-343630-A (GB)
Title: Improvements relating to the control of aeroplanes
IPC: B64C13/00
Filed: 1929-12-05
Abstract: 343,630. Aeroplane controls. CHICK, J. S., Central Flying School, Royal Air Force, Wittering, Northamptonshire. Dec. 5, 1929, No. 37263. [Class 4.] An aeroplane is controlled by ailerons which are so constructed as to be operable as controllable drag surfaces independently of their function as ailerons. Each aileron, Fig. 2, is in two parts 12A, 12B having substantially coaxial hinges 12C. Operating cables 12E, 12F from aileron flaps 12A, 12B are led round a pulley 13, Fig. 5, mounted on an arm 14 forming part of a rudder bar 15 pivoted at 15A. From the pulley 13 the cables are led round pulleys 16 disposed on either side of a control column 17. The cable 12 is crossed and both cables are connected to the column 17, or when wheel control is employed, pass round the usual wheel sprockets. Operation of the rudder bar to one side causes the aileron on that side to split, the resulting unbalanced drag causing the machine to yaw to that side, Fig. 5. Lateral movement of the control column 17 causes application of the ailerons in normal manner causing the unsplit ailerons to move as one and the split aileron to move oppositely but still split at the angle determined by the rudder bar setting. The operation of the drag surfaces may be independent of the rudder or only applied after a certain amount of rudder movement; the rudder may be dispensed with. They may be semi-automatic to function only at low speeds and may be balanced. The pulleys 13 may be slidable along the arm 14 causing the ailerons to function as air brakes, when the rudder bar is neutral. A modification is mentioned in which operation of the drag surfaces is effected by fore and aft movement of their axes.
Patent GB-1485302-A (GB)
Title: Winch devices suitable for use in warping and mooring of ships
IPC: B63B21/16
Filed: 1974-08-23
Abstract: 1485302 Multiple drum winches FRIEDRICH KOCKS GmbH 23 Aug 1974 [25 Aug 1973] 37282/74 Heading B8B [Also in Division F2] A winch device, suitable for use in warping and mooring of ships, comprises a pair of drums 11, 12 each having grooves 13 about which a rope 14 is wound in a figure eight path, the end 14a being the rope's load end which is located on the load side (S1) of the winch device and the rope 14 leaves the drum 11 at a region 14b which is distal with respect to the load side (S1) of the winch device and is guided downwardly to a rope stowing device in the form of a basket (16), Fig. 2 (not shown). In use of the winch device a pull is exerted on the part of the rope 14 which is distal from the load side (S1) by the fact that the respective end grooves 13a, 13b of the drums 11, 12 are formed with two circumferential parallel rows of protuberances 18, 19, Fig. 4, which engage rope 14 to ensure good contact between the rope and grooves 13a, 13b, a thrust roller 25 being provided to further enhance the engagement between rope 14 and groove 13a. The drive shaft 26 of the drum 11 is driven by a motor (not shown), the drive being transmitted to the drum 12 by the engagement of friction wheels 28, 30 on drum 11 with respective friction wheels 29, 31 of drum 12. The friction wheels 29, 31 are pressed into engagement with the friction wheels 28, 30 by means of a spring 35 which presses a guide member (34) leftwardly in the Figures, the member (34) being rigidly connected with the shaft (38) of the drum 12, Fig. 5 (not shown).
Patent GB-1144257-A (GB)
Title: Hydrogenation of halogenated aromatic carbonyl compounds
Inventor: WYMORE CHARLES ELMER
IPC: C07C47/55
Filed: 1967-08-14
Abstract: 1,144,257. Halogenated aromatic alcohols. DOW CHEMICAL CO. 14 Aug., 1967 [15 Aug., 1966; 3 Oct., 1966], No. 37310/67. Heading C2C. In the manufacture of halogenated aromatic alcohols by hydrogenating halogenated aromatic aldehydes or halogenated aromatic-aliphatic ketones at 75-300 C. under pressure in the presence of a copper chromite catalyst, which may be stabilized by incorporating a minor proportion of a barium salt, improved yields are obtained by effecting the reaction in the presence of an alkaline-earth metal hydroxide. When an o-chlorophenyl ketone is treated, a further improvement in yield may be obtained by including in the reaction mixture, in addition to the alkaline-earth metal hydroxide, an amine having a pKa value, as defined in the Specification, of at least 3À7. A number of such amines are specified. Typical examples describe the hydrogenation of o-chloro-acetophenone, 2,4-dichloroacetophenone, p-bromoacetophenone and o- and p-chlorobenzaldehyde.
Patent GB-819284-A (GB)
Title: Total taking mechanism in ten-key adding machines
IPC: G06C15/06
Filed: 1956-12-20
Abstract: 819,284. Calculating-apparatus. UNDERWOOD CORPORATION. Dec. 20, 1956 [Dec. 29, 1955], No. 37346/58. Divided out of 819,283. Drawings to Specification. Class 106 (1) In a ten-key calculating machine having differential actuators carrying racks movable under the control of transfer stops through an additional step beyond the zero position to effect tens transfers and in which any released transfer stops are restored early in a machine cycle, total-taking mechanism comprises an aligner for temporarily arresting the actuators in their zero positions after a small initial movement and means which then engage the totalizer with the racks, the aligner being restored after the totalizer has been engaged. The embodiment described is fully disclosed in Specification 819,283, to which reference is made.
Patent GB-1169401-A (GB)
Title: Improvements in or relating to Switching Systems.
Inventor: HARVEY DAVID FREDERICK
IPC: B07C3/00
Filed: 1966-08-22
Abstract: 1,169,401. Keyboards. M.E.L. EQUIPMENT CO. Ltd. 13 Sept., 1967 [22 Aug., 1966], No. 37501/66. Heading G4H. [Also in Division H1] The keys of a keyboard are locked under the control of an inhibiting logic network operating in response to an electric signal from each key and inhibiting further actuation of the keys until the signal has been accepted. In an arrangement applied to a pair of keyboards A, B, Fig. 4, of a parcel sorting system in which coded destinations are transmitted from keys 2, 3, 4 through lines 38, 39, 40 to a memory store (not shown), latching solenoids 38A, 38B lock the operated key down and lock all the remaining keys on both keyboards A, B while a memory unit 35 signals to AND gate 34 that the memory system has not yet accepted the information from the keyboards A, B. The three input AND gate 34 has one input from OR gate 31 associated with all the keys and a third input from an amplifier 36 which normally signals when a single key 2, 3, 4 is depressed but which has no output if two keys are depressed simultaneously. In this event no signal will be sent along a fault line 41 and the associated system is arranged to ignore or cancel the signals from lines 38, 39, 40. A reference is also made to the locking system being arranged to operate in a two-digit code after two keys have been depressed.
Patent GB-844144-A (GB)
Title: Grinding device for rotary cutter machines
IPC: B24B3/36
Filed: 1958-11-21
Abstract: 844,144. Grinding. KÍRBER, K. Nov. 21, 1958 [Feb. 27, 1958], No. 37521/58. Class 60. A grinding device for attachment to or forming part of a tobacco or fibrous material cutting machine having a series of rotating cutter blades 5, Fig. 1, comprises a grinding wheel 9 mounted in a pivoted carrier 7 to provide arcuate motion in a plane tangential to the pitch circle 4 of the cutter blades, the grinding wheel having an effective diameter exceeding the chord height of the arc of grinding wheel movement in grinding contact with the cutters. The carrier 7, supported by a spindle 8 adjustably mounted in a bearing 6 in the machine frame 1, is swung through its arc of movement by a reversible motor 11, Fig. 2, driving through a worm and wheel 12, 13, reversal of motion being effected by contacts located at 7<SP>1</SP>, 7<SP>11</SP>. A motor 14 drives the cupped grinding wheel 9, the grinding contact being maintained by known means for advancing the spindle 8 progressively to compensate for wear. A trueing diamond 17 is adjustably secured in a holder 16. A plurality of grinding wheels carried by separate arms, angularly spaced by the angle of sweep of a single-armed device, may be employed, the motor 11 in this embodiment driving rotationally, instead of oscillating, the grinding wheel carriers 7, and the motor 14. being provided with multiple belt and pulley drives for the grinding wheels. In the construction shown in Fig. 3, a toothed disc 26, rotatable about the axis of the grinding wheel driving motor shaft within an outer casing 27 secured to the frame of the tobacco or the like cutter, forms the carrier for a plurality of grinding wheels 31 each sweeping a grinding arc the height of chord of which is exceeded by the diameter of each wheel. The carrier disc 26 is driven by a pinion fixed to a shaft driven through skew gearing from the cutter-drum shaft. The driving spindle 30 of each grinding wheel 31 is progressively advanced towards the cutter blades 46 by means of an externally threaded ring 33 mounted on the spindle and contacting a collar 35. The ring 33 is held against rotation relative to the spindle 30 by pins 36, but is caused to move axially by an internally threaded worm wheel 37 which engages the externally threaded ring, the wheel 37 being given a small increment of rotation at each revolution of the disc 26 by means of a worm 38 which is itself intermittently turned by a ratchet-lever 41 actuated by contacting a fixed cam 42. The cutter blades 46 may be provided with known means for progressive advance during rotation, such as worm-andwheel 51, 52, to maintain constant the cutter pitch circle 5, and a trueing diamond 45 is provided in a holder 44.
Patent GB-523239-A (GB)
Title: Improvements in or relating to absorption refrigerating systems
IPC: F25B15/10
Filed: 1938-12-29
Abstract: 523,239. Refrigerating. ELECTROLUX, Ltd. Dec. 29, 1938, No. 37743. Convention date, Jan. 4. [Class 29] Absorption systems.-In a continuous cycle inert gas system having simultaneous heat exchange between rich solution, weak solution and boiler vapours a gas bubble pump is provided operated by the boiler vapours to lift both the rich solution and the condensate formed by rectification of the boiler vapours due to the heat exchange. Vapour from the generator 10 flows through a conduit 19 to the outside passage 20 of the triple heat exchanger 17 where it gives up heat to strong solution flowing in the opposite direction through the intermediate passage 38 and is rectified, the condensate draining through a conduit 40 to join strong solution in a vessel 22. From the heat exchanger 17 the vapour passes through a pipe 21 to the vessel 22 and enters a hole 41 in a gas lift pipe 23, whence the strong liquor from the absorber 13 is lifted to a vessel 24 and an analysing effect is obtained by the bubbling of the vapour through the strong solution 1. The vapour passes on to the condenser 18, and 'the liquid flows from the vessel 24 through pipe 37, the intermediate passage 38 of the heat exchanger 17 and a pipe 39 to the generator. Weak solution flows from the generator through a conduit 30 and the inner passage 31 of the heat exchanger 17 to the upper part of the absorber.
Patent GB-1134859-A (GB)
Title: Improved container or box of plastics material
IPC: B65D25/20
Filed: 1967-08-18
Abstract: 1,134,859. Collapsible boxes; label holders. CHEMISCHE WERKE HULS A.G. 18 Aug., 1967 [20 Aug., 1966], No. 38053/67. Headings B8F and B8P. [Also in Division E2] An integrally formed plastics box with flap sides has one of the two side walls at each corner formed with an extension 1 containing a slot 5 for the reception of the other side wall, and one or more integrally formed press-in locking elements 6 are provided on each extension or the co-operating wall to releasably lock the side walls together. As shown the locking elements 6 snap over to the locking position, Fig. 4. In a modification the locking elements are snap-over diaphragms, Figs. 7 and 8 (not shown), a similar element being shown used as a label holder 10, Fig. 2.
Patent GB-329956-A (GB)
Title: Blowout preventer head for an oil well
IPC: E21B33/06
Filed: 1928-12-27
Abstract: 329,956. Dyer, Z. A. Dec. 27, 1928. Borehole apparatus; wells.-A blow-out preventer for oil wells comprises a body 11 secured to the well casing 16 and provided with a conical seat 14, and a head member 12 adapted to be placed round the drill pipe 17 when required and to co-operate with the body 11; the head member comprises a lower conical member 20 adapted to fit the seat 14, an intermediate packing member 26 of rubber &c., and an upper member 39, the members 20, 39 having annular grooves 27, 34 into which extend projections on the racking member. The members 20, 26, 39 are held together by screws 42 and are diametrically divided; a hinge bar 47 connects the parts and a T-headed keeper 51 is adapted to lock the head member in position around the drill pipe 17. Wedge slips 61 are held m the parts of the upper member 39 by dovetail extensions 64 and stop plates 66 and, when a pressure-bearing strata has been penetrated, act to convey the weight of the drill pipe to the head member 12 so as to expand the packing member to prevent a Bow of oil or gas.
Patent GB-1178876-A (GB)
Title: Method of Drying and Purifying After-Chlorinated Polyvinyl Chloride
Inventor: MEYER GUNTHER
IPC: F26B3/08
Filed: 1967-08-18
Abstract: 1,178,876. Drying chlorinated PVC. DYNAMIT NOBEL A.G. 18 Aug., 1967 [19 Aug., 1966J, No. 38272/67. Heading C3P. After-chlorinated PVC is dried and purified by fluidizing with warm air. Preferably the air is heated to 150-165‹ C. until the polymer is heated to 50-65‹ C. and the air temperature is then reduced, preferably in stages to maintain this polymer temperature. Alternatively the polymer may be pre-dried conventionally.
Patent GB-1400345-A (GB)
Title: Platinum-containing hydrocarbon conversion catalysts and process for preparing the same
IPC: B01J27/13
Filed: 1973-08-13
Abstract: 1400345 Hydrocarbon conversion catalysts SOC FRANCAISE DES PRODUITS POUR CATALYSE 13 Aug 1973 [16 Aug 1972] 38276/73 Heading B1E [Also in Division C5] Catalysts comprise platinum, iridium, niobium and, optionally, a halogen on alumina.