baber/WOPTO huggingface dataset:
Patent GB-1400987-A (GB)
Title: Sealing devices
IPC: F16J15/40
Filed: 1973-09-21
Abstract: 1400987 Shaft seals SEALOL Inc 21 Sept 1973 [28 Oct 1972] 44324/73 Addition to 1168199 Heading F2B A rotary shaft 10 is sealed where it extends through a housing 12 by means comprising an axially movable buffer-fluid pressure control ring 15 which is non-rotatable and defines, with a radial face 13 of the shaft, a control clearance 29 through which buffer fluid is fed at a constant rate and acts axially on the ring 15 in opposition to the pressure of the sealed fluid whereby the buffer fluid pressure is automatically regulated in proportion to the sealed fluid pressure by variation in the width of the control clearance. Buffer fluid is supplied to the clearance 29 through inlet ducts 23, passage 24 and space 22 and is returned through the clearance space 26 between the ring and the shaft and outlet duct 27. Space 26 is sealed by packing 28 and space 22 by a seal 18 slidable within a flange 17 of ring 15 and having a sealing element 19 urged by the springs 20 into contact with face 13. The ring 15 is urged axially toward face 13 by springs 16. In Fig. 4, the buffer fluid control ring 423 forms with 0-rings 425 and 426 and a housing a chamber 424 to which sealed fluid passes through a bore 427 in the housing from the clearance 428 around the shaft 420. Buffer fluid is fed through channel 428, bores 429, space 430 to control clearance 432 between the ring 423 and a collar 421 on the shaft. The buffer fluid which also acts to cool the sealing components, returns via passages 433 and 434. The ring 423 is urged towards the collar 421 by springs 435 so that when there is no buffer fluid flow the ring contacts the collar. Face type sealing elements 431 and 444 are urged by spring rings 445 into sealing contact with collar 421 and are prevented from rotating by pins 442 and 443. Buffer fluid passes through a bore 437 to a gap 438 between 0-rings 440 and 441 and acts to counteract the formation of ring 423. In Fig. 5 (not shown) the face of the control ring (515) defining the control clearance (529) with a collar (509) on the rotary shaft (510) is formed of carbon so that in the event of buffer fluid pressure failure it forms a contact seal with the collar, the area of the ring (515) subjected to sealed fluid pressure being augmented by movement of an 0-ring (525) from one side of its housing groove to the other. In Fig. 7, for use when the sealed fluid is a gas, the seal between the gas and the buffer liquid is a "visco-seal" having internal helical grooves co-operating with the outer periphery of the shaft. Buffer liquid is fed through inlet 723, duct 724 and helical cooling channels 770 to the seal 718 and clearance 729 and returns through outlet duct 726. In Fig. 8 (not shown), the sealed gas and buffer fluid are separated by a visco-seal (818) and an end face seal (880) arranged in series.
Patent GB-1273644-A (GB)
Title: Improvements relating to telescopic joints
IPC: F16J15/46
Filed: 1970-09-17
Abstract: 1,273,644. Boring earth and rock; wells &c. VETCO OFFSHORE INDUSTRIES Inc. 17 Sept., 1970 [16 Jan., 1970], No. 44343/70. Heading E1F. [Also in Division F2] A telescopic joint, e.g. in an underwater drill string or riser, comprises relatively slidable tubular members 10, 11 and a packing 22 which is set against the member 11 by pressurising an elastic diaphragm 36. The pressure of fluid within the string or riser is applied to a large piston 57 working in a cylinder 54 communicating with the exterior through a port 71. The piston 57 moves a smaller piston 58 to pressurise fluid in a chamber 37 against the diaphragm. In a modification, Fig. 2a, the diaphragm is in the form of a toroidal bladder 30. The packing 22 comprises split rings or a helix of braided flax or asbestos impregnated with a graphite or fluorocarbon lubricant. The joint may be disassembled by backing off screws 18 to release an expandable split ring 15. The internal diameter of the diaphragm is larger than the external diameter of the connector portion 13 of the member 11 to facilitate withdrawal thereover during disassembly and prior to dismantling the packing.
Patent GB-443656-A (GB)
Abstract: 443,656. Totalizator ticket-issuing machines. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, BROOME, J. H., 80, Leyland Road, Lee, and SOUTHAM, A. A., 58, Larchwood Road, New Eltham, all in London. Nov. 21, 1934, No. 33480. Addition to 402,083. Drawings to Specification. [Classes 106 (i) and 106 (iii)] The common integrating means of the ticket printing machine of the parent Specification is operated by electric impulses generated by means associated with and controlled by the machine. Two embodiments are described. In the first, the machine rotates a cam which generates impulses continuously and a series of cams which correspond to the denominations and are effective for differing lengths of time. The impulses pass to the common counter through the denomination cams and the number reaching the counter corresponds to the cam in use. In the second embodiment, denomination cams are also provided, but these each make and break the circuit the same number of times in one cycle of the shaft, the different cams commencing impulsing at different times in the cycle. Another cam closes a point in the impulsing circuit during half the period of the main shaft so that the number of pulses reaching the integrating means is different for each of the denomination cams. Full circuits are given in the Specification.
Patent GB-1472489-A (GB)
Title: Differential
IPC: F16H48/10
Filed: 1975-10-29
Abstract: 1472489 Differential gear CATERPILLAR TRACTOR CO 29 Oct 1975 [28 March 1975] 44629/75 Heading F2D In a differential gear wherein four sets of three radially disposed intermeshed helical pinions 20 mesh axle-shaft helical face gears 14, 15 and are secured to radial spindles 21 carried by a driving housing 11, the spindles 21 have spherical bearing contact in the housing to avoid peak pressures on the spindle ends when the spindles tend to tilt under load. In Fig. 3 the spindles 21 have part-spherical ends 27 bearing in sleeves 28 which are initially cylindrical internally but deflect elastically under load to a conforming part-spherical surface, and have intergral thrust collars 30. In Fig. 5, not shown, the sleeves (28a) are formed internally part-spherical to engage complementary surfaces of sleeves (27a) secured to the spindles, and separate thrust washers (30a) are arranged between the pinions and the housing (11a).
Patent GB-1481049-A (GB)
Title: Fabrication of field effect transistors
IPC: H01L27/088
Filed: 1974-10-15
Abstract: 1481049 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 15 Oct 1974 [1 Nov 1973] 44716/74 Heading H1K IGFETs having respectively fixed and variable thresholds are formed in a same semiconductor body by a process involving the application to the body of a series of insulating layers adjacent ones of which have different etch characteristics, selectively etching the layers through a sequence of masks to determine the transistor locations, diffusing source and drain regions into the previously defined locations of the body, selectively removing the insulating layers from the gate region of the fixed threshold transistor and growing a gate oxide thereon while retaining the lower two of the insulating layers in the gate region of the variable threshold transistor, and applying source, drain and gate electrodes to the two devices. In the illustrated process a P type Si epitaxial layer 12 on an N type substrate 11 is oxidized to provide a first 40-70  thick SiO 2  layer 13 and is then coated with alternate layers 14, 16 of CVD Al 2 O 3  600  thick and 15, 17 of pyrolytic SiO 2  700  thick. Openings 21, 22, 31, 32, to define source and drain areas of the two IGFETs, and 40, to define an isolating region therebetween, are etched through the upper two layers 17, 16 and a non-critically aligned mask is then used to cover the openings 21, 22, 31, 32 while the opening 40 is extended through the layers 15, 14 to the layer 13. At this point P or As is diffused to form the isolation region 44, the SiO 2  layer 13 being too thin to impede diffusion. The structure is then as shown in Fig. 1D. All the exposed SiO and the consequently exposed Al 2 O 3  is next removed, and source and drain regions 23, 24, 33, 34 are diffused through the windows thus opened down to the thin, non-masking layer 13. During this diffusion the isolation region 44 extends downwards to meet the substrate 11. A non-critically aligned mask is used to protect all of the remaining layers 14, 15 except over the gate area of the fixed threshold device and after the latter portions have been removed a thick SiO 2  layer is deposited over the entire structure. This merges with the remaining portions of layers 13 and 15 to form a SiO 2  layer 48 (Fig. II). A further non-critically masked etching step removes the layer 48 from the source, drain and gate areas of the fixed threshold IGFET and a fresh gate oxide layer 49 is grown there. Finally source and drain contact windows are opened and Al electrodes 55-60 (Fig. 1K) are applied. The left-hand IGFET of Fig. 1K is thus a conventional SiO 2 -gate fixed threshold device while the right-hand IGFET is an Al 2 O 3 -on-SiO 2 -gate variable threshold device.
Patent GB-1019975-A (GB)
Title: Combined starter-alternator unit for internal combustion engines
Inventor: BAKER ALFRED DICKENS
IPC: F02N11/04
Filed: 1962-11-27
Abstract: 1,019,975. Engine starter drives. JOSEPH LUCAS (INDUSTRIES) Ltd. Oct. 31, 1963 [Nov. 27, 1962], No. 44848/62. Heading F1K. [Also in Division H2] A combined starter-alternator unit for internal-combustion engines comprises in combination a housing, a spindle 15 mounted for rotation in the housing, gearing 26, 27, engaging the spindle and arranged to engage an engine driven shaft 28 when the unit is in position in a road vehicle so that the spindle and shaft are interconnected through the gearing, an alternator 18, 19, 21 within the housing and having its rotor 18 secured to the spindle, a starter motor 6 within the housing and adapted when energized to rotate the spindle in one angular direction and a free wheel 12, 13 for permitting angular movement of the spindle relative to the starter motor in the same angular direction, the arrangement being such that in use when the starter motor is energized it drives the shaft through the gearing which acts as a reduction gear the engine serving when started to drive the rotor of the alternator through the gearing which now acts as a step up gear. The fan 23 draws air through the housing, from an inlet 24 to an outlet 25.
Patent GB-1237854-A (GB)
Title: Circuit arrangement for evaluating the loop condition and for differentiating loop resistances in a telecommunication line, more particularly, a telephone line
IPC: H04Q3/00
Filed: 1969-09-11
Abstract: 1,237,854. Telephone exchanges. INTERNATIONAL STANDARD ELECTRIC CORP. 11 Sept., 1969 [19 Sept., 1968], No. 44938/69. Heading H4K. A loop-impedance discriminator comprises a detector AE connected between potential dividers R1, R2, connected between line terminals A, B and battery to provide a bridge circuit with feed resistors RS1, RS2, a twoterminal network ZP being connected between taps on resistors in the circuit, such tapped resistors providing potential dividers whereby the network ZP may be used to adjust the nullposition of the detector without altering the symmetry of the circuit which isolates the detector from longitudinal interfering voltages on the line. The adjustment is provided since, apart from network ZP, the circuit is produced by printed circuit or thin film techniques in which the ratio between resistors can be accurately controlled but absolute values are uncertain. As shown in Fig. 2 the network ZP, comprised of fixed or variable ohmic resistors, is connected between a tap on resistor RS1, forming a divider with the same ratio as R1 to R2, and one of the dividers R1, R2. ZP may be connected between taps on each of the resistors R1  made to constitute dividers with the same ratio, Fig. 3 (not shown), or may be connected between taps on resistors RS1, RS2, Fig. 9 (not shown). In Fig. 7, the dividers R1, R2 are connected to the same battery pole and the network ZP is an essential component of the bridge as well as a means of adjustment. The delta configuration of resistors R1 R2, RS2, in Fig. 7, can be replaced by an equivalent star configuration, Fig. 8 (not shown), to provide values more suited to printed circuit production. Voltage presented to the detector may be limited by oppositely poled diodes bridging similarly ratioed taps on the resistor pairs R1 and R2, respectively, Fig. 4 (not shown).
Patent GB-1439064-A (GB)
Title: Nestable or stackable container especially for freezers or  refrigerators
IPC: B65D21/06
Filed: 1973-09-26
Abstract: 1439064 Stackable and nestable containers ETABS BONNET 26 Sept 1973 [28 Sept 1972] 45172/73 Heading B8P A stackable and nestable container has an open-topped, upwardly divergent body 2 of plastics material provided with surfaces 4 in the upper corners for supporting a superimposed container, and is characterized in that handle members 5 are pivotally mounted on the outside of two opposed walls for movement between an upper handle forming position (as shown in Fig. 1) and a load bearing lower position. In this second position the handle members 5 extend below the container and engage the surfaces 4 when stacked on a second container. The handle members 5 are removed when the containers are to be nested. The container is particular for use in a refrigerator or freezer, when the handle members 5 may be used to suspend the container from ledges on the interior walls of the apparatus.
Patent GB-1490527-A (GB)
Title: Abs terpolymer/resin compositions
IPC: C09J161/06
Filed: 1974-10-21
Abstract: 1490527 ABS terpolymer resin/phenolic resin compositions SCHENECTADY-MIDLAND Ltd 21 Oct 1974 [3 Jan 1974] 45411/74 Heading CR3 [Also in Division C4] A process for making a bonding agent comprises forming a novolak resin from phenol and formaldehyde in the presence of an acid catalyst and adding an acrylonitrile-butadiene-styrene terpolymer (ABS) resin in an amount of 1-30% wt., based on the weight of the phenol, before the completion of the formation of the novolak resin. The terpolymer is preferably added to the phenol before the formaldehyde is added but may be added during distillation or after distillation when free formaldehyde is present. Suitable acid catalysts are sulphuric, hydrochloric, phosphoric, oxalic, sulphamic, phenolsulphonic and toluene sulphonic acids, maleic anhydride or diethyl sulphate. The invention also relates to a grinding wheel in which the abrasive grits are bonded together with a bonding agent comprising a mixture of an ABS terpolymer resin and a hardened phenol-formaldehyde novolak resin, the weight of the terpolymer resin not exceeding 50% wt. of the phenol used in forming the novolak resin. The hardening agent may be hexamethylenetetramine or paraformaldehyde. The abrasive grits may be fused aluminium oxide, silicon carbide, diamonds, fused zirconia or sintered alumina. In the examples numerous phenol/HCHO novolak resin/ABS resin bonding agents are prepared which are ground with hexamethylenetetramine, then mixed with aluminium oxide as abrasive grit and an ammonia catalysed phenolformaldehyde resole as wetting resin, and then moulded into grinding wheels which are cured by heating.
Patent GB-1277163-A (GB)
Title: Tablet dispenser
Inventor: FINKEL HENRY
IPC: B65D83/04
Filed: 1970-09-24
Abstract: 1277163 Dispenser package for tablets DESBERGERS LIMITEE 24 Sept 1970 [1 Oct 1969] 45542/70 Headings B8C and B8P A device, for holding and dispensing tablets, pills, capsules, or the like, comprises a case 10 having a base 12 and a cover 14, a tablet disc 16 having partitions 30 which extend from a wall 34 to form an annular pattern of tablet receiving compartments 28, a time indicator 18, and a ratcheted periphery 36, a calendar element 20 with an annular pattern of time indentifications 46 and a ratcheted periphery 50 and which is adapted to fit over the top edge 35 of the wall 34 and be rotatable on the tablet disc, and a clamp element 22, shaped to fit into the base 12, and having an overhanging top edge 64 and a tablet exit 66 which co-operates with a guide 26 on the base 12. To assemble the dispenser the tablet disc 16, with its compartments 28 filled with tablets, is rotatably mounted in the base 12 by engaging a hollow boss 38, at its centre, with a hub 24 on the base 12, the calendar element 20 is placed over the tablet disc 16 to rest upon the partitions 30, and the clamp element 22 is positioned over the tablet disc 16 and the calendar element 20. A latch 80 on the clamp element 22 snaps into locking engagement with a projection 82 on the base 12, the ratchets 36, 50 on the tablet disc 16 and calendar element 20 respectively engaging pawls 74, 76 on the inside wall of the clamping element so that the tablet disc can only rotate in one direction, for instance clockwise, and the calendar element can only rotate in the opposite direction. In one manner of use the calendar element 20 is rotated by using finger grip lugs 52, 54 to locate a particular marking, such as Sunday, between the indicator 18 and the aligned exit, and a breaking seal 78, carried by the clamp element 22, is removed so that the tablet can be dispensed from the corresponding compartment 28. On the second day the indicator 18, which is integral with the hub 38 of the tablet disc, is moved clockwise to indicate Monday.
Patent GB-999049-A (GB)
Title: Improvements in machine for applying waterproofing materials to fabrics, paper and other materials in web form
Inventor: THOMAS HARRY
IPC: D06N7/00
Filed: 1961-12-20
Abstract: 999,049. Waterproofing material in web form. ZAMA Ltd. Dec. 7, 1962 [Dec. 20, 1961], No. 45563/61. Heading D1L. Apparatus for applying a waterproofing solution such as rubber, synthetic rubber, or synthetic resin, dissolved in toluol, xylene or naptha to a web 1 e.g. of paper or fabric comprises two applicator rolls C, C<SP>1</SP> over which the web passes such that the second roll (and subsequent rolls, if present) applies solution while the preceding coating is still wet, doctors c<SP>2</SP> and c<SP>3</SP> being provided to remove surplus solution from the rollers and fabric. As shown, the web runs from a supply roll 2 via tension rollers a, a<SP>1</SP> and a floating roller a<SP>2</SP> to a rotatable drum B which is drivingly connected to the applicator rolls C, C<SP>1</SP> by a chain drive so that the applicator rolls are driven by the passage of the web over drum B. After passing over the applicator rolls the web travels, in a zig-zag path through a drying zone D in which the solvent is recovered. The applicator rolls may dip into separate tanks containing different solutions.
Patent GB-1019813-A (GB)
Title: Improvements in or relating to seat arrangements
Inventor: TREVELYAN LESLIE CALVERLEY
IPC: B60N2/30
Filed: 1963-11-19
Abstract: 1,019,813. Vehicle seat arrangements. AUTO SLEEPERS Ltd. Nov. 19, 1964 [Nov. 19, 1964], No. 45615/63. Heading B7J. Seats in a motor caravan comprise panels 3, 4, Fig. 3, and a side panel 9 which form two seat bases and a seat back respectively providing inwardly facing seats. The panels 3, 4 may be pivoted about their hinges 5, 7 to form a forwardly facing single seat, Fig. 4, and a vertically slidable storage space partition 12 may be removed. Where seat arrangements as described are provided one on each side of the vehicle a table may be provided between them, or when the seats face inwardly as in Fig. 3 the panels 9 may be folded down over 3 and 4 to give additional width to a bed formed by supporting the table top on ledges 8 and 15.
Patent GB-1070722-A (GB)
Title: Optical shutter
Inventor: JONES OWEN CHARLES
IPC: G03B9/08
Filed: 1962-12-03
Abstract: 1,70,722. Photographic cameras. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 3, 1963 [Dec. 3, 1962], No. 45684/62. Heading G2A. An optical shutter has an obturating member in the form of a metal ribbon 10 held across a magnetic field, the ribbon being moved between positions in which it blocks a light path and opens this path by passing electric currents through the ribbon. The ribbon 10 which may be of beryllium copper is mounted in a holder 12 at right angles to the field produced by magnets 14 and 16. The holder 12 comprises two sheets 18, 20 of plastics material, the sheet 20 having a groove 22, Fig. 3, adjacent an aperture 24. Clamps 26, 28, Fig. 1, carrying electrical terminals secure the ribbon 10 at its ends. A steady current is passed through the ribbon to bias it against the lower edge of slot 22, Fig. 3, a pulsed current of double amplitude to the bias current and of opposite sign causes the ribbon to move upwardly to open the aperture 24. The pulse form may be controlled to produce a high initial acceleration and a deceleration before the ribbon reaches an extreme position.
Patent GB-1077135-A (GB)
Title: Stabilisation of cetane number improvers for diesel fuels
Inventor: NOTTES GUENTHER
IPC: C07C201/02
Filed: 1964-11-10
Abstract: The cetane numbers of diesel fuels are improved by the addition of hydroaromatic nitrates, e.g. cyclohexyl nitrate, which have been stabilized with N-alkylated monoalkanolamines.ALSO:Hydroaromatic nitrates are stabilized by the addition of up to 10 weight per cent N-alkylated monoalkanolamine.  In examples, cyclohexyl nitrate is stabilized with Me2NC2H4OH, Et2NC2H4OH, Pr2NC2H4OH, MeEtNC2H4OH, and n- and iso-Me2NC3H6OH.
Patent GB-1521368-A (GB)
Title: Electronic counting device
IPC: G01R19/17
Filed: 1976-11-03
Abstract: 1521368 Monitoring changes in voltage, digitally ELECTRONIQUE MARCEL DASSAULT 3 Nov 1976 [28 Nov 1975] 45754/76 Heading H3H The number of times a signal 15 changes from one of a plurality of first values to a second value is counted in respective counters, 39 1 , 39 2  &c., the first values being set by resistors R 1 , R' R 2 , R<SP>1</SP> 2  &c. and the second values by resistors R<SP>11</SP> 1 , R<SP>11</SP> 2  &c. switched in and out of circuit by the outputs of the comparators 18 1 , 18 2  &c. Either the leading edges or the trailing edges of the pulses output by the comparators are detected and counted. As described, 5 counters are provided, the first values correspond to load factors in an aircraft of 3g, 4g, 5g, 6g and 7g and the second values are all equal and correspond to 2g. For checking purposes a test voltage may be applied at 51, increasing to a maximum and then decreasing to a minimum.
Patent GB-1340148-A (GB)
Title: Distyryl derivatives of diphenyl and their use as optical brightening agents
IPC: C07C317/14
Filed: 1971-10-01
Abstract: 1340148 Optically brightened polymers CIBA-GEIGY AG 1 Oct 1971 [1 Oct 1970] 45798/71 Addition to 1131484 Headings C3R and C3B [Also in Division C2] Polymers are optically brightened with a diphenyl derivative of the formula wherein A 1 <SP>1</SP> represents a radical of the formula wherein R 4  is H, OCH 3 , C 1  to C 12  alkyl, phenyl- (C 1  to C 8 )alkyl, phenyl or Cl; R 5  is H or C 1  to C 4  alkyl; R 6  is H, Cl, C 1  to C 8  alkoxy, C 2  to C 4  alkyl or phenyl; R 7  is H, Cl or C 2  to C 4  alkyl, and R 8  is H or phenyl, and n is 1 or 2. In examples a terephthalic acid ethylene glycol polyester, and a polyurethane coating composition comprising an isocyanate-modified polyester, ethyl acetate, a reaction accelerator and a polyfunctional isocyanate cross-linking agent, are both optically brightened with compounds of the above formula.
Patent GB-1019649-A (GB)
Title: Improvements in and relating to the production of linalool
IPC: C07C33/02
Filed: 1963-11-21
Abstract: Linalool is made from 2-pinanol by a process which comprises passing a mixture of 2-pinanol and water, preferably in the ratio 1 : 7 to 1 : 10 by weight, through a heated column which is at 450 DEG  to 600 DEG  C., preferably 500-550 DEG  C., and which is advantageously packed, e.g. with soda glass beads.  The examples refer.