baber/WOPTO huggingface dataset:
Patent GB-1251861-A (GB)
IPC: H01G9/02
Filed: 1969-02-17
Abstract: 1,251,861. Electrolytic capacitors. GENERAL ELECTRIC CO. 17 Feb., 1969 [12 April, 1968], No. 8552/69. Heading H1M. The liquid or gel electrolyte in an electrolytic capacitor comprises the reaction product of a di- or tri-carboxylic acid with an alkanolamine, substituted alkanolamine, tetramethyl guanidine or piperidine dissolved in a non-aqueous solvent. The alkanolamine may be an ethanolamine or isopropanolamine or substituted derivatives thereof. The acid may be adipic, succinic, maleic, malonic, citric, tartaric or oxalic acid. The solvent may be ethylene glycol, dimethylformamide, dimethyl acetamide, dimethyl- or diethylcyanamide, butyrolactone or n-methylpyrrolidone.
Patent GB-1252668-A (GB)
IPC: B60C29/02
Filed: 1969-01-17
Abstract: 1,252,668. Inflating pneumatic tyres. SCOVILL MFG. CO. 17 Jan., 1969 [9 Feb., 1968], No. 2998/69. Heading B7C. [Also in Division F2] A tyre valve body 12 and a rubber wheel rim hole plug 10 have co-operating indentations 36 and flanges 20, 22 respectively so that the projecting length of the body is adjustable. The central opening of the plug is closed by a puncturable wall 18 which is punctured by a sharpened end 62 of the body when the latter is fitted subsequent to tyre inflation. A conventional screw-in tyre valve or, as shown, a check valve with a rubber seat and metal retaining washer 52 is provided in the body 12. The plug may be vacuum "sucked" " into the hole or pushed by an inserting rod (A). A tubular inserting tool (B) with an adjustable stop (C) is used for pushing the valve body for the required length into the plug.
Patent GB-1256557-A (GB)
IPC: A61M16/04
Filed: 1969-10-09
Abstract: 1,256,557. Tracheal tubes. RHONE-POULENC S.A. 9 Oct., 1969 [10 Oct., 1968], No. 49740/69. Heading A5R. [Also in Division F2] A tracheal tube consists of a main tube 1 having a side orifice 2 and rounded ends 3 a first lateral tube 10 having a portion 11 of reduced external diameter which fits closely within orifice 2, a second lateral tube 12 slidable within tube 10 and having a rim 13 which prevents tube 12 extending substantially into the main tube 1, and a clip 14 fitted within tube 10 and outside tube 12 and having hooks 15, 16 which when the clip is fully inserted within tube 10 engage with the inner surface of main tube 1 and ring 17 abuts against end 18 of tube 10 thus holding the latter in position with respect to the main tube. The angle α between the lateral tubes and a plane perpendicular to the longitudinal axis of the main tube is preferably between 10 and 30. In Figure 2 (not shown) the main tube is of modified construction consisting of three sections (4, 5, 6), (it may alternatively be of two sections), screwed together. The tubes may be made of a suitable plastics material, e.g. polytetrafluoroethylene, and the clip is preferably of a stainless metal.
Patent GB-1257763-A (GB)
IPC: E03D3/10
Filed: 1970-02-06
Abstract: 1,257,763. Water closets. C. W. NEELY. 6 Feb., 1970 [10 Sept., 1969], No. 5877/70. Heading E1C. A water closet comprises a housing 6 having a bore 15 with an outlet 22 to a bowl for flushing and an inlet 8' for mains water, a water tank 4 having an integral neck 5 projecting into the bore 15 with a valve head 13 which opens and closes inlet 8' and outlet 22, and a spring 18 around the neck between the tank and the housing. On movement of a lever 7 the tank begins to fall and valve head 13 moves down from position shown to allow mains water to flow to outlet 22. When the valve head leaves the bore 15 water from the tank flows through a bore 12 in the neck and chamber 14 to the outlet until the tank is so light that the spring moves the tank back up to a position above that shown where the head 13 closes the outlet, mains water then flowing into the tank until the tank settles back down to the position shown where a bar 24 thereon engages lever 7. A spring catch 21 engages grooves 19 and 20 in the side of the neck in its lower and upper positions. A controlled air vent 10 is provided to relieve air pressure in the tank. A small passage 26 through the valve head allows water to form a pool in the bowl. A guide plate 16 is secured to the top of the housing.
Patent GB-1257988-A (GB)
IPC: B26B19/04
Filed: 1969-04-30
Abstract: 1,257,988. Dry shaver cutters. BRAUN A.G. 30 April, 1968 [2 May, 1968], No. 22047/69. Heading B4B. [Also in Division B3] A movable inner cutter for a dry shaver includes a cutter component 1 having a side portion for intersecting a cutting surface 4 coated with hard powdered material 3 such as diamond or sapphire dust. Semi-annular cutter components 1, which may be of relatively soft material, e.g. plastics, may be clamped in a blade block frame 2 for co-operation with a fixed counter cutter formed by a perforated foil, Fig. 3 (not shown), a layer of material 3 being applied to each face of the components 1 prior to honing of their outer surfaces to produce cutting edges.
Patent GB-1259127-A (GB)
IPC: H01H1/24
Filed: 1968-12-20
Abstract: 1,259,127. Electromagnetic contactors; contact-members for switches. LA TELEMECANIQUE ELECTRIQUE. 20 Dec., 1968 [4 Jan., 1968], No. 60766/68. Heading H1N. The U-shaped fixed contact member 5 of an electromagnetic contactor is fixed to the base 1 by a screw 8 passing through one limb 4 of the U, and the other limb 3, carrying the contact 15, provides an integral projection defining a groove 5a, Fig. 2 (not shown), engaged by the base edge 6 to prevent movement of limb 3 towards the moving contact bridge 2 due to expansion. Limb 3 is chamfered at its upper end 3a, Figs. 2, 3 (not shown), to form an arcextinction horn. The groove 5a is made a little larger than the edge 6 so that limb 3 retains a certain degree of elasticity with respect to the impact of the contact bridge 2. The screw 8 is removable through a hole 7 in limb 3 or, alternatively is captive but accessible through hole 7. The screw may have a hexagonal socket head 9. Contact member 5 is a sectioned profile, or is made from a band which is cut and folded, a separate arcing horn 18, Fig. 3 (not shown), then being welded to the surface 19 of limb 3.
Patent GB-1266200-A (GB)
IPC: G02B27/44
Filed: 1969-08-07
Abstract: 1,266,200. Spatial filtering. TECHNICAL OPERATIONS Inc. Aug. 7, 1969, No.39599/69. Addition to 1,167, 727. Heading G2J. A selected combination of superimposed images, e.g. for use in a teaching aid, are retrieved from a single composite record containing a plurality of different, additively superimposed images each respectively multiplied with a spatial carrier of unique azimuthal orientation. A composite record 72 is illuminated with light from an effective point source 66 located in the front focal plane of a collinating lens 52. A transform lens 54 forms a diffraction pattern of the record 72 in a Fourier transform plane, the patterh comprising a plurality of Dirac delta junction arrays each convolved with a spectrum of spatial frequencies characterizing a different one of the component images of record 72. A composite adjustable spatical filter 74 is located in the transform plane and has manually operable solenoids for adjusting the elements 76 of the filter 74 for selectively transmitting only those portions of the plurality of diffraction spectra corresponding to the desired combination of images desired to be reconstructed in superimposition on screen 60. The composite record may comprise information useful for instruction in medical technology or in engineering. If desired the component images may be colour coded, a segmented spectral filter being located immediately behind the spatial filter 74 each segment of the spectral filter having a transmittance peak different from adjacent segments and being associated with different diffraction orders of the composite record.
Patent GB-1266591-A (GB)
IPC: F26B13/10
Filed: 1969-02-18
Abstract: 1,266,591. Transferring fibrous material between endless conveyers. SCHILDE A.G. 18 Feb., 1969 [17 July, 1968], No. 8727/69. Heading B8A. [Also in Divisions D1 and D2] Apparatus for feeding a continuous cable 6 in a coiled disposition on to the conveyer belt 4 of a drier for natural or synthetic fibre cables, comprises a drum 52 which rotates synchronously with the belt 4, and a surface of which defines a trough with the conveyer belt which extends at a constant radial spacing appropriate to the cable width over an angle of between 90 and 180 degrees, and continues rearwardly into a passage which extends upwardly from the belt. One wall of the passage is formed by a vertically extending portion of the conveyer belt, and a feed channel 2 feeds cable into the upwardlyextending passage and is adapted to oscillate rectilinearly transversely to the main direction of travel of the conveyer belt. A second conveyer 1 carries the cable to the feed channel, and is adapted to oscillate in a horizontal plane, in accordance with the oscillatory movement of the feed channel 2. Chain wheels 44 guide the conveyer belt 4 upwardly before it reaches a main horizontal run. This consolidates the coils of the material to a desired degree.
Patent GB-1266842-A (GB)
IPC: E05B1/00
Filed: 1970-01-06
Abstract: 1,266,842. Door handles. T. D. KURTZ. Jan. 6, 1970, No. 541/70. Heading A4U. [Also in Division B6] A finger pull for sliding doors or glass panels 15, 16 comprises a moulded plastics pad 9 having a shallow finger depression 13 in the front face and a coating (10) of pressure sensitive adhesive applied to the flat attachment face (11), the adhesive being covered by a removable strip of flexible material (12) until it is required to secure the pad to the door surface by finger pressure. The pad on the door 15 has operating clearance between the doors and may be of other polygonal form or of closed curvilinear, e.g. circular, form and have radial projections.
Patent GB-1294850-A (GB)
IPC: B64C27/59
Filed: 1970-08-27
Abstract: 1294850 Controlling rotor blade pitch UNITED AIRCRAFT CORP 27 Aug 1970 [18 Sept 1969] 41220/70 Heading B7W [Also in Division F2]  A pitch control system, particularly for the outer rotor of a double counter-rotating rotor assembly, for varying blade pitch both cyclically about any selected axis and collectively, comprises a crank mechanism 56, Fig. 4, formed by a rotatable torque tube 60 having an inclined cylindrical bearing support portion 82, and a crank mechanism 58 formed by a rotatable torque tube 62 having an inclined cylindrical bearing support portion 120, the crank mechanisms 56, 58 are coaxially mounted and are connected by respective pins 98, 100 and 128 130 to a stationary swash plate ring 106 held by linkage 94, Fig. 7, to a fixed standpipe 96 and around which ring 106 is mounted a rotatable mesh plate member (140), Fig. 3 (not shown), joined to each blade 28, Fig. 8, by rods 54, so that rotation of torque tube 62 causes tilting of the mesh plate ring 106 about an axis 102 while rotation of the torque tube 60 causes tilting of the swash plate ring 106 about an axis 105. Axis 105 is offset by an angle α from the zero cyclic pitch input axis 104, orthogonal to axis 102, so that the swash plate ring 106 has imparted thereto a pitch change of α. The pitch control system 80 is of a universal nature since simultaneous and selective rotation of torque tubes 60, 62 produces tilting about any arbitrary axis, due to the superimposed action of crank mechanisms 56, 58. As applied to the outer rotor 24 of the double counter-rotating motor assembly 20 of a helicopter the torque tube 60 is surrounded by a member 150 which via bearing 156 supports the upper rotor drive shaft 154 around which is rotatable the lower rotor drive shaft 160, both shafts 154, 160 being driven by an engine 170  through transmission 40. The blade pitch of the lower rotor 32 as described, is varied in conventional manner by a swash plate (42), Fig. 1 (not shown), though a second pitch control system 80 may alternatively be used. In a modification, Fig. 9 (not shown), the pitch control system 80<SP>1</SP> is mounted externally of and controls a single rotor aircraft.
Patent GB-1296856-A (GB)
IPC: C22B9/18
Filed: 1969-06-12
Abstract: 1296856 Casting processes STEEL CASTIINGS RESEARCH & TRADE ASSOCIATION 7 Aug 1970 [12 June 1969] 29831/69 Heading B3F [Also in Division C7]  A method of producing a casting having a fine grain crystal structure from an alloy steel, comprises providing the steel with a high nitrogen content either before or during casting, and inoculating the molten metal before, during or after casting, while its temperature is above the liquidus temperature, with an element or compound or a mixture of elements and/or compounds to create a multitude of nucleation sites so as to allow solidification to proceed with the production of a fine grain structure. The nitrogen content, e.g. 0À15%, is higher than is conventionally found in steels but not so high as to cause porosity. It may be obtained by adding high nitrogen ferro-chromium. Alternatively the inoculant itself may provide the high nitrogen content. A fine powder such as ferro-chromium, e.g. at least 0À1% by weight of the casting, may be the inoculant or alternatively an inert gas such as argon may be used. Where the alloy is produced in a mould or as a weld by the electroslag process the inoculation may proceed until the mould is filled or the weld completed. The nitrogen content may be provided by the wire or rod being melted in the electroslag provess, or nitrogen additions may be made to the slag. Reference is made to the production of a fine grained chromiumnickel steel by addition of high nitrogen ferrochromium and then casting in a green sand mould while adding fine ferro-chromium powder in an inert carrier gas to the metal entering the mould.
Patent GB-1301940-A (GB)
IPC: B60B19/14
Filed: 1970-07-23
Abstract: 1301940 Wheels R B BUCKNELL 15 July 1971 [23 July 1970] 35750/70 Heading B7C A wheel comprises a first rolling portion and a second rolling portion of greater diameter and smaller surface area than the first portion, such that in use of the wheel on hard ground the second portion only contacts the ground whereas on soft ground both the second portion and at least part of the first portion contact the ground, the wheel thus providing little rolling resistance on hard ground whilst also providing a ground contacting area of larger size on soft ground to minimize sinking of the wheel. The wheel may comprise a hollow shell 1, consisting of a first rolling, portion 5 and a second rolling portion 4, protruding radially outwardly slightly beyond the first portion 5, of substantially cylindrical form with a circular end face 2, the first portion 5 tapering from the second portion to a smaller end with a substantially circular face 3, the second portion 4 being of thicker shell material and of greater rigidity than the first portion 5, the latter being resiliently flexible. The circular face 2 is formed with corrugations 6 radiating from the centre to form ribs or spokes 8, the corrugations increasing in depth and breadth towards the periphery of the face, the ribs serving to strengthen and enhance the rigidity of the second portion 4, and the face 3 is formed with corrugations 9 which radiate from the centre and decrease in depth towards the periphery of the face. Apertures are formed one at the centre of each of the faces 2, 3 and a plastics tube 12 extends between the apertures sealing the shell and providing a sleeve for an axle. The shell may be made from plastics using a rotary moulding technique. The wheel is buoyant and may be used, for example, on a boat launching trolley.
Patent GB-1307278-A (GB)
Title: Control means for hydrostatic transmission
IPC: F16H61/42
Filed: 1970-11-27
Abstract: 1307278 Fluid pressure apparatus KOMBINAT ORSTA-HYDRAULIC BETRIEB INDUSTRIEWERKE KARL-MARX-STADT VEB 27 Nov 1970 56841/70 Heading F1P Control means for an hydrostatic transmission comprises a plurality of selector elements 10, which may be solenoids or pneumatic cylinders for selectably adjusting a variable capacity pump 1 to any one of a plurality of selectable capacities, each selector element 10 co-operating respectively with one of a plurality of rocker arms 12 secured to a shaft 11 which carries an arm 8 co-operating with a follow-up valve 6 in an hydraulic servo which controls the hydrostatic transmission. Each rocker arm 12 carries an adjustable abutment member 13 for contacting the corresponding selector element 10. Re-set means 14 co-acts with the arm 8, and an adjustable stop 15 is provided to limit the angular movement of the arm 8 towards the valve 6.
Patent GB-1310900-A (GB)
Title: Process for the production of heptenes
IPC: B01J23/04
Filed: 1969-10-13
Abstract: 1310900 Heptenes BP CHEMICALS Ltd 16 Sept 1970 [13 Oct 1969] 50075/69 Heading C5E Heptenes are prepared by co-dimerizing propylene with one or more butanes at an elevated temperature in the presence of a catalyst comprising one or more alkali metals or hydride thereof deposited on an alumina support in the form of granules of sizes 5-60 B.S.S. mesh containing an alkali metal or alkaline earth metal salt. Catalysts used in the examples are 10-20 mesh Al 2 O 3  containing 10% KHCO 3  with K or Na-K alloy deposited thereon.
Patent GB-1320501-A (GB)
Title: Adjustable driving wheels
IPC: F16H55/54
Filed: 1969-06-20
Abstract: 1320501 Expanding pulley gears TRIPLITE Ltd 18 June 1970 [20 June 1969 (2)] 31213/69 and 13777/70 Heading F2D An expanding pulley comprises belt, band or tape engaging tread blocks 12 slidable along radial pairs of rods 11, of a central holder 10, and having tapered ended spring-loaded pegs 13 engaging spiral slots 14, or a single slot (not shown), of a scroll cam disc 15 turned to effect radial adjustment of the tread blocks 12 along the pairs of rods 11, the belt, bond or tape engaging the blocks 12 between the rods 11 as in Fig. 3 (not shown). In the embodiment of Fig. 3 (not shown), the scroll cam disc (24) is formed around its periphery with gear teeth (25) by which it may be adjustably turned to vary the effective diameter of the sliding blocks (21) by a stepping motor (not shown) driving through a shaft 30 and a gear train 31, 32, 33, 26 to the toothed cam disc (24). A micro-switch (55) having a trip button 54 engageable with a projecting arm (53) on the cam disc (24) may be incorporated in the pulley for resetting purposes.
Patent GB-1348232-A (GB)
Title: Apparatus for applying glue to moving webs
IPC: B31F1/28
Filed: 1972-04-04
Abstract: 1348232 Application of adhesive to corrugated webs EICKHOFF-UNIVERSAL-WELLPAPPENMASCHINEN GmbH 4 April 1972 15281/71 Heading D1L Apparatus for applying glue to the peaks of a corrugated web 3 comprises an applicator roller 4 rotating in a trough 6 of glue and a circumferentially grooved doctor roller 9 forming a nip with the applicator roller 4, the doctor roller 9 being arranged to doctor the roller 4 to leave bands of glue on the web contacting surface thereof. The grooves 10 in the surface of the doctor roller may be annular or helical (Figs. 2 and 3, not shown) and are preferably formed with a depth of 0.1-0.2mm and a width equal to the width of the lands separating them. A scraper blade 13 or air knife may be provided for removal of residual glue from the grooves of the doctor roller. The applicator and doctor rollers are rotated in opposite directions and are preferably axially shiftable with respect to each other to provide, when desired, staggering of the spots of glue applied to the web 3. The nip pressure between roller 9 and roller 4 may also be adjusted to regulate the thickness of glue retained on the roller 4. As illustrated the glue applying apparatus may be arranged in combination with web corrugating rollers 1 and 2 and with a back-up roller for pressing a flat web 5 against the glued peaks of the corrugated web 3.
Patent GB-1349314-A (GB)
Title: Self inflating apparatus such as a mattress or sleeping bag formed therewith
IPC: A47G9/10
Filed: 1972-04-19
Abstract: 1349314 Mattresses; sleeping bags C J GAISER 19 April 1972 [9 June 1971] 18129/72 Headings A4G and A4M A mattress or sleeping bag incorporating the mattress, comprises a jacket 3 of flexible, airtight material, e.g. nylon, polyethylene film or rubberised fabric containing a core comprised of crossing tiers of spaced ribs 4, 6 sandwiched between sheets 7, 8 all of resilient, flexible, open-cell cellular material of various stated kinds, the ribs and sheets being adhesively bonded to each other, and a tube 9 provided with a sealing cap 13 communicating the spaces in the core with the outside. With the cap removed, the mattress may be flattened to expel air from the spaces between and within the cellular ribs and sheets and then rolled up, preferably around mandrel 16 in the form of a plastics tube 16 capped at 17 for holding e.g. a fishing rod, the cap 13 being replaced to keep the mattress flat. A heat-reflective barrier sheet, e.g. metal foil, 14, may be bonded between the bottom jacket layer and the core. The sleeping bag is formed by two overlapping covers 23 slide fastenable on their edges at 24 to provide spaces for a person, having shoulder flaps 28 and neck opening 27, and bonded to the mattress lower edge at 22. The covers are formed of a moisture resistant envelope containing a flexible insulating pad 31 of material similar to the mattress core and having an inner sheet of heat reflective material. An auxiliary valve may be incorporated in the mattress to permit pumping air into it.
Patent GB-1352134-A (GB)
Title: Calculating device
IPC: G06G1/00
Filed: 1970-05-05
Abstract: 1352134 Calculator for lens makers DOLLAND & AITCHISON SERVICES Ltd 27 July 1971 [5 May 1970] 21516/70 Heading G4B A calculator is graduated and arranged for indicating the thickness of lens blank required for grinding to make a lens of particular diameter and front and back surface powers. Two alternative forms are described. In the first, Fig. 1, the desired front and back surface powers on scales A and B respectively are aligned. The required scale A 1  or A 2  or A 3  (and similarly for scales B) is chosen in accordance with the diameter of the lens to be made. The lens blank thickness is given on scale C by arrow 18 carried on slide 13. Alternative thicknesses, dependent upon the degree of finish which is to be given to the lens, are indicated by arrows 19, 20 carried on the cursor 16 and spaced from the cursor line 17 by predetermined distances. If the lens is to have a degree of prism the thickness is indicated on scale C opposite the required prism rating on scale D. The nominal front surface power (set up on scale A) may have to be corrected due to the thickness of the lens. The correction factor may be automatically applied by a slide 14 coupled by linkage (not shown) to slide 13 so that the nominal and corrected front surface powers correspond on scales F and E respectively. Instead of the linkage, an arrow on the slide 14 may be aligned with the indicated blank thickness on scale C<SP>1</SP> to give the required relative positions of scales F and E. In the second form, Fig. 2, a cursor line 115, rotatable by a knob 112, and a second cursor line 117, rotatable relative to line 115, may be used in conjunction with surface power scales on disc 121 and a thickness scale on disc 123 to set up the required front and back surface powers and read off the associated blank thickness. The knob 112 of sursor 115 is coupled via rod 111 and gearing 113 to an arrow 126 which moves over a corrected surface power scale 129.