baber/WOPTO huggingface dataset:
Patent GB-1211054-A (GB)
Title: Servo valve
IPC: F15B13/043
Filed: 1968-12-17
Abstract: 1,211,054. Fluid pressure servomotor systems; Transducers. MOOG Inc. Dec.17, 1968 [Dec.29, 1967], No.60025/68. Headings G3H and G3P. A transducer comprises a deflector 75 movable along a path T-T in response to input signals to vary the proportions of stream 48 which are directed to out put legs 52, 53 of an amplifier 42 in a lamina 40 sandwiched between a lamina 41 and an upper member 39 which is provided with bores (not shown) connecting the amplifier parts with the exterior of the device. The input signals may be of fluidpressure, but according to the preferred arrangement an armature 29 is movable relative to magnetic pole pieces 26, 27 by applying electrical signals to coils 30, 31. The armature is carried by a resiluent tube 33 to the lower end of which is secured a member 36 provided with deflector 75 which can also be adjusted along path A-A, to vary the gain of the transducer, by a spring 104. In a modification Figs.14-16 (not shown) output legs 52, 53 are connected co-oppositely acting chambers (89, 90) of a spool valve with controls the flow of fluid to the load, and which has a mechanical feed back connection to the deflector comprising a spring (101) engaging a groove (103) in the spool.
Patent GB-1263598-A (GB)
Title: Sound deadening materials
Inventor: LONGSON JAMES NEIL
IPC: C09J7/35
Filed: 1969-12-10
Abstract: 1,263,598. Sound insulation. LO SOUND DEVELOPMENTS Ltd. 19 Jan., 1971 [10 Dec., 1969], No. 60231/69. Heading F2X. In a sound absorbing sheet, a bituminousbased sound absorbing layer has, on one side, a heat sensitive adhesive compound and on the other side a film of a synthetic plastics material on which is superimposed a silicone coating. The sound absorbing sheets may be arranged in stacks without adhering together, as the adhesive compound will not adhere to the silicone. The sheets may be applied to vehicle metal body panels by means of the adhesive. The plastics material may be a polyester resin.
Patent GB-1247199-A (GB)
Title: Improvements relating to microwave generators
Inventor: SEITZER DIETER
IPC: H03K3/78
Filed: 1968-12-24
Abstract: 1,247,199. Transistor oscillators. INTERNATIONAL BUSINESS MACHINES CORP. 24 Dec., 1968 [29 Dec., 1967], No. 61494/68. Heading H3T. A microwave generator comprises a transistor distributed amplifier (Fig. 3), the transmission lines of which are connected (as in Fig. 4 or 5a) to form a closed loop around which a pulse may propagate after amplification to its point of origin at a rate determined by the length of the lines. Delay lines 52, 51 (Fig. 5a) are connected across ports A 2 , E 2  and A 1 , E 1  respectively of the amplifier 30, and by the variation of the delay characteristics of the line(s), the fundamental frequency can be changed. In Fig. 6 (not shown), the oscillator is keyed with a further transistor connected across it. The further transistor may be replaced by a lower frequency oscillator. The transistors of the amplifier may be of Schottky laser field effect type.
Patent GB-1291847-A (GB)
Title: A hot-gas cooler
IPC: F28F9/18
Filed: 1969-12-22
Abstract: 1291847 Tubular heat exchangers R L NEWBY (Badische Anilin and Soda Fabrik AG) 22 Dec 1969 62281/69 Heading F4S 'In a heat exchanger in which gas; from a chamber G flows through tubes 3 and is cooled in a chamber E by a fluid flowing over the tubes, the gas-entry ends of the tubes 3 are which supported by a tube plate 1, are double walled to provide a jacket space C around each tube for a coolant. A baffle 4 in each jacket provides a return path for the coolant. Guide vanes (6, Fig. 3) in each jacket may generate a vortex type of flow in the coolant. The chamber E may for example comprise a waste heat boiler in which the fluid flowing over the tubes (i.e. the cooling fluid) is evaporated. In Fig. 1, the cooling fluid intended for chamber E, enters the apparatus via a chamber D (formed between tube plates 1 and 5) and flows thence through jackets C and finally into chamber E. In an alternative form, Fig. 4, the jacket spaces C comprise closed chambers through which a separate cooling fluid is conveyed via pipes 8 and 9. Excessive heating of the tube plate 1 by the gas is prevented by allowing the gas entry ends of the tubes to project beyond the tube plate into the gas generating chamber G, and providing on the tube plate or heat insulating layer 7 of brick or of rammed-in composition held in place by anchoring elements, e.g. studs (not shown) on the projecting tube portions.
Patent GB-649720-A (GB)
Abstract: 649,720. Bearings. WALLACE & TIERNAN PRODUCTS, Inc. Sept. 3, 1947, No. 24308. Convention date, Sept. 11, 1946. [Class 12 (i)] [Also in Group XXXVI] The rotor 30 of a moving iron instrument (see Group XXXVI), is supported on a pair of knife edges 36, each of which rests in the intersection of a pair of flexible strips 47, 48. A manually-operated knob external to the instrument acts to lift the knife edges from their seating by means of a bar 65 and a rubber bush 67 and clamps the rotor against stops 58, 59.
Patent GB-737681-A (GB)
Abstract: 737,681. Calculating-apparatus. SIMENCA SOC. ANON. Dec. 8, 1952 [Dec. 11, 1953], No. 31107/52. Class 106 (1). In a calculating machine having a totalizer comprising spaced coaxial number wheels, mutually-spaced drums bearing decimal points and commas are disposed in the spaces between the number wheels and are rotatable as a, unit properly to punctuate the numbers indicated by by the totalizer. The decimal points are helically arranged on the drums 301 and the commas are arranged on further helices spaced by three denominations. The drums 301 are fast on a shaft 300 offset from the shaft 305 of the totalizer wheels 304, or rotatably carrying the latter, and the shaft 300 is rotatable by suitable setting mechanism. The punctuation signs are visible through a window 302 which coincides with the totalizer window 306 when the drums 301 are coaxial with the wheels 304.
Patent GB-738044-A (GB)
IPC: D01H5/26
Abstract: 738,044. Fibre drafting apparatus. CASA. BLANCAS HIGH DRAFT CO., Ltd. April 1, 1954 [April 17, 1953], No. 10626/53. Class 120(2). Double-belt drafting apparatus has a bottom cradle 11 with spaced side walls shaped to rest on the bottom roller of an intermediate pair 3, 4 and adapted to support releasably the front ends of two separate top cradles 10 that rest on the top rollers 3, 5 of intermediate and preceding pairs. The upper cradles 10 are narrower than the bottom cradle 11 and at their forward ends are provided with pins 17 to engage hook portions 11a, 11c into which the pins 17 are guided by the sloping edges of the cradle 11 rearwardly of the hook portions 11a, 11c. When employed in conjunction with a top arm weighting device, raising and lowering of the arm results in automatic disengagement and re-engagement of the upper cradles 11. Removal of the top cradles 10 results in a swinging movement of the cradle 11  which is limited by contact between a projection 11e and a bar 20. Instead of employing the last-mentioned elements, the part 11d may be allowed to contact a clearer roller working in association with the roller 6 and apron 7. Specification 694,272 is referred to.
Patent GB-2026191-A (GB)
Title: Cables
IPC: G02B6/44
Filed: 1978-07-13
Abstract: A cable structure has its conductive members 2 enclosed within a sheath 3 of a plastics material, and this sheath is itself enclosed within an armouring layer formed by tapes of glass-type material helically wrapped over the sheath. This armouring layer itself has an oversheath 6 of an electrically insulating material. The cable actually described uses optical fibre conductors but the invention is applicable where the conductors are metallic ones for electricity. In either case the cable has a central strength member 1 formed of a glass-type material. <IMAGE>
Patent GB-2002690-A (GB)
Title: Process and apparatus for printing thermoplastics sheets
IPC: B41M1/30
Filed: 1978-08-11
Abstract: There is described a process for printing thermoplastics sheets comprising using a relief printing process and an offset printing ink. The printing is suitably effected on a machine in whose roller frame are provided solvent-resistant rubber rollers, e.g. butyl rubber rollers.
Patent GB-2003770-A (GB)
Title: Pad assembly for vacuum rotary sander
IPC: B24D9/08
Filed: 1978-09-12
Abstract: A pad assembly for a vacuum rotary sander has a flexible pad body 12 secured to a rigid head 14 that is connectable to a vacuum housing and a pad rotating means. A plurality of apertures 13 in the head communicate with other apertures 16, 18 in the lower surface of the pad by internal channels 20 which are angled toward the direction of rotation of the pad. The apertures in the lower portion of the pad coincide with apertures 46, 48 in an abrasive disc 38 removably secured to the assembly and may be elongated in the direction opposite to that of rotation so as to allow some slippage of the abrasive disc relative to the pad assembly. There is also disclosed a device 50 for quickly positioning and loading an abrasive disc onto the pad assembly. <IMAGE>
Patent GB-2005037-A (GB)
Title: Housings for electrical measuring instruments
IPC: G01R1/04
Filed: 1978-09-25
Abstract: For applications such as use in mining, electrical measuring instruments are usually of the moving coil type. Hitherto known digital display instruments have not been suitable because they are not rugged enough and also they require a power supply. In mines, only certain kinds of power supply may be used for safety reasons. The invention provides a digital display instrument comprising two dust-tight and splash-proof casings 1 and 2 in one of which is encapsulated a digital display measuring instrument, the casing having a window 14 through which the display 5 can be viewed, and in the other of which there is encapsulated a "safe" power pack comprising rechargeable storage cells 23 and voltage and current limiting components, the two casings being snap-fitted together with plug and socket members 25 and 27 to provide electrical connection between the power pack and the instrument. <IMAGE>
Patent GB-2022417-A (GB)
Title: Fungicidal or insecticidal smoking or fumigating compounds
IPC: A01N25/20
Filed: 1979-04-12
Abstract: To render more effective the active constituent(s) of an insecticidal or fungicidal smoking or fumigation composition, by reducing the temperature at which said constituent will vaporise effectively to a favourable level to reduce the effect of decomposition of the agent at smoking or fumigating temperatures, use is made of an active constituent having a vapour pressure of less than 1 mm Hg at 20 DEG C in company with an organic compound whose boiling point exceeds 100 DEG C and whose vapor pressure is greater than that of the active constituent. Preferred, for the active constituent are pyrethrins, organic chlorine or phosphorus compounds or carbamates, for the organic compounds liquid paraffin, aromatic or halogenated hydrocarbons, alcohols or esters, and for the carrier activated charcoal, clay, zeekite or terra alba.
Patent GB-2021088-A (GB)
Title: Sintering agents for ferrites
IPC: C04B35/26
Filed: 1979-05-03
Abstract: Lithium ferrites are sintered with 0.5-3 mol% of a mixture of phosphorus pentoxide and at least one compound of vanadium or bismuth e.g. vanadium peroxide or bismuth trioxide, to produce memory cores of high density and small grain size having high figures of merit. The lithium ferrites may contain additional ions such as zinc, nickel and manganese.
Patent GB-2052011-A (GB)
Title: Piston assembly for hydraulic master cylinder
IPC: B60T11/16
Filed: 1979-07-12
Abstract: A piston assembly for the master cylinder of a hydraulic braking system comprises a rigid support member (1) which has a boss (4) and flange (5) to support a conventional flexible master cylinder seal. The maximum diameter of the support member is defined by circumferentially spaced lands (8A, B and C) which slidably engage the master cylinder bore wall. During recuperation strokes fluid can flow between the lands and past the seal. The support member (1) is molded from plastics material or die-cast from metal with sufficient accuracy to obviate the need for any subsequent machining of the lands (8A, B, C). The central body portion (2) of the support member is cruciform. <IMAGE>
Patent GB-2027165-A (GB)
Title: Door handle spindle
IPC: F16D1/06
Filed: 1979-07-23
Abstract: A square cross-section operating spindle 10 for a door latch, has adjacent each end a respective longitudinally extending slot 12 passing through the spindle transversely, the slot being closed at each end and being filled by an insert 14 of deformable material such as cardboard or plastics. A door handle 18 can be secured to the spindle in any desired position over a continuous range defined by the slot 12, by screwing a self-tapping screw 24 via a transverse bore 22 in the handle 18 into the slot so that the screw thread cuts corresponding screw portions in the side walls of the slot 12, the screw being also held in place by the deformable insert 14. Alternatively, screws (56) may be used to expand inserts (54, 66) into engagement with the handle. <IMAGE>
Patent GB-2060891-A (GB)
Title: Electronic obstetric device
IPC: A61B5/024
Filed: 1979-10-30
Abstract: An electronic obstetric device for evaluating the course of parturition is provided with a foetal heart rate detector 1 and a uterine contraction detector 2. Means 3, 3c, 3f, 3d are provided to convert signals from said detector to a wave form representation. A comparator 4 (also Fig. 1) evaluates components of each of said wave forms to ascertain the parameters thereof and activates an alarm when one (or both) of the signals depart by more than a predetermined amount from a predetermined fixed value. By comparing the said components against a basal value which is manually adjusted by an obstetrician, said obstetrician may acurately review the components of foetal heart rate and those of uterine contraction and may also evaluate their inter-relation. <IMAGE>
Patent GB-2066490-A (GB)
Title: Optical recording medium
IPC: G11B7/246
Filed: 1979-11-29
Abstract: A recording medium comprises a substrate 110 coated with a light reflecting layer 112 which in turn is coated with a light absorbing layer 114 consisting of a Pt complex of bis- (dithio- alpha -diketones) which have the formula:   <IMAGE> wherein R is a phenyl or substituted phenyl group. During recording, portions 116 of the absorbing layer 114 are ablated, vaporized or melted by an intensity-modulated, focussed light beam, thereby exposing portions of the reflective layer 112 and recording video information as a reflective-antireflective pattern. <IMAGE>
Patent GB-2052317-A (GB)
Title: Improvements in rotors for turbo- molecular pumps
IPC: F04D19/04
Filed: 1980-04-23
Abstract: A method of producing a blade ring 1 for the rotor of a turbo-molecular pump; before making the radial slots 9 to form the blades 10, the disc is so machined that it has a thickness which decreases radially outwards in a continuous or stepwise manner, Figures 1 or 2. <IMAGE>
Patent GB-2053437-A (GB)
Title: Liquefied gas overcharge prevention device
IPC: F17C13/12
Filed: 1980-05-27
Abstract: A liquefied gas overcharge prevention device provided with a safety valve. The overcharge prevention system comprises, in combination, a conventional pressurized gas tank charging valve having a liquid level responsive gas inlet valve mechanism, a first relief valve for regulating pressure within the tank and a second relief valve for regulating back pressure within the charging valve.
Patent GB-2065967-A (GB)
Title: Field Effect Transistor
IPC: H01L29/808
Filed: 1980-07-03
Abstract: A field effect transistor device is constituted by a semiinsulating substrate (211) consisting of a compound semiconductor, an N type semiconductor layer (212) formed on the substrate, a plurality of P type semiconductor gate regions (215a to 215d) aligned along a straight line and extending through the semiconductor layer (212) to reach the substrate (211), source and drain electrodes (213, 214) disposed on the semiconductor layer on the opposite sides of the drain regions, a gate electrode (217) having an ohmic contact with the gate regions (215a to 215d) and having a Schottky contact (212a to 212c) with the semiconductor layer (212) interposed between the gate regions. Two gate regions (215a and 215d) on the opposite ends of the array are in contact with the boundary region of the transistor. The field effect transistor device is useful for fabricating an integrated circuit and consumes less electric power. Furthermore, it reduces dispersion in the gate pinch off voltage and can be prepared at a high yield. <IMAGE>
Patent GB-2081619-A (GB)
Title: Grinding grooved rollers and a grinding machine for this purpose
IPC: B24B23/08
Filed: 1980-08-12
Abstract: The undercut flanks of a grooved roller 80, e.g. a slitter roller in a paper mill, are ground whilst the roller is in situ. A portable grinding machine is mounted on the machine in which the roller is supported; the grinding wheel 32 is set at an angle corresponding to the angle of the required undercuts; the grinding wheel is advanced into the groove and then fed axially into the flank to be ground. A grinding machine for carrying out the above method has a headstock adapted to slide in the direction of advance and screw means 82 to provide axial feed of the grinding wheel. A cranked lever is used to operate the advance of the headstock. <IMAGE>
Patent GB-2058113-A (GB)
Title: Ink compositions
IPC: C09D11/037
Filed: 1979-01-06
Abstract: Ink compositions in which polyalkyleneglycol is blended with a mixture of cobalt thiocyanate or a compound which may generate thiocyanate ions, said mixture being dissolved in a liquid vehicle. These ink compositions may provide vivid inking images of deep blue colour, which images can be erased easily, if necessary, by wiping with cloth, paper, fibrous material or the like impregnated with water.
Patent GB-2068114-A (GB)
Title: Apparatus for photoelectric surface inspection
IPC: G01N21/954
Filed: 1981-01-07
Abstract: A photoelectric surface inspection apparatus, particularly for inspecting the interior of tubes, has a sensor assembly (6) mounted on a rotary casing (5). The sensor assembly (6) has at least one (preferably two) light sources (14) and two photoelectric elements (15, 16) which are connected to a bridge circuit (12) and provide an output indicating a defect, when the bridge is unbalanced, via an operational amplifier (13). <IMAGE>
Patent GB-2080901-A (GB)
Title: Rod coupling arrangement
IPC: F16B3/04
Filed: 1981-06-05
Abstract: A coupling arrangement comprises a first element (16) having a cylindrical recess in which there is formed at least one circumferentially- extending groove (18), and a second element (19) incorporating a cylindrical insert (26) arranged to fit closely within the recess of the first element and having in its surface, for each said groove of the recess, a cooperating groove (21) which can be aligned with the respective groove of the recess to form a circumferentially- extending channel, the or each groove of the first element communicating with the exterior of the element through an opening (23) which permits a wire (24) or similar elongated member to be introduced into the channel, so that it secures the members together. <IMAGE>
Patent GB-2077701-A (GB)
Title: Weight assembly for polymeric reel
IPC: G11B23/037
Filed: 1981-06-12
Abstract: A weight assembly 24 adapted for use with a polymeric video tape reel 10 to approximately match the moment of inertia of the polymeric reel to that of a similar metal reel. The weight assembly comprises an annular portion 26, spaced arcuate shape weights 28 and attaching devices 30 adapted to enter apertures 22 and 32 in a side wall of the reel. The attaching devices may include pendulums 48 automatically moved by gravity or centrifugal forces to releasably attach the weight assembly to the side wall of the reel. Alternatively spring clips or manually operated devices may be used as attaching devices. <IMAGE>
Patent GB-2101642-A (GB)
Title: Tow cutter
Inventor: BYRE STANLEY WILLIAM
IPC: A24D3/02
Filed: 1981-07-08
Abstract: In-line apparatus for continuously cutting filamentary tow (2) into fibres and delivering the cut fibres in a continuous stream, the apparatus comprising a tow inlet feeder (50) and a cut fibre exit gas jet (64) arranged in-line, and a knife blade (60) rotatably mounted for periodic passage therebetween to intersect tow passing there-through and cut it into fibres. The cut fibres are carried directly to an air separator (21) from which they are deposited in a device for forming them into filter rods. <IMAGE>
Patent GB-2082975-A (GB)
Title: Method for Colouring Oxide Layers of Aluminium or Aluminium Alloys with Organic Compounds
IPC: G03C1/77
Filed: 1981-09-07
Abstract: Oxide layers of aluminium or aluminium alloys are coloured with organic compounds by introducing at least one diazo compound into pores of the oxide layer and reacting the diazo compound to form a dye. Patterns, designs, labels, signs or pictures can for example be produced by irradiating the diazo compounds incorporated in the oxide layer. The articles thus produced may be used as sign-boards, front plates, scales, circuit diagrams, traffic signs, identity cards, etc.
Patent GB-2090672-A (GB)
Title: Rotating images
IPC: H04N5/262
Filed: 1981-11-09
Abstract: A rotating dove prism is situated in front of a camera and/or projector employed in the production of composite foreground/background cine or TV images. A rotating dove prism in association with (a) a projector for the background (and employing a stationary foreground) produces a rotating background image (and a stationary foreground), (b) a camera for recording a composite image produces a rotating composite image, (c) a projector as in (a) and a camera as in (b) produces a stationary background image and rotating foreground image, and (d) a projector as in (a) and a camera as in (b), except that a foreground rotating about an axis offset from the optical axis of the camera is employed, produces a stationary background image and individual foreground images which change in position relative to one another.
Patent GB-2088976-A (GB)
Title: Mounting Brake Shoes
IPC: F16D65/06
Filed: 1981-11-23
Abstract: Brake shoes 5 are mounted on respective arms (3), 4 of a bicycle brake apparatus by means of a first rotatable member 27, 28 mounted on each brake arm and rotatable about a first axis A, a second rotatable member 33, 34 fixedly associated with shoe 5 mounted on the first rotatable member 27, 28 and rotatable about a second axis B positioned parallel to and away from the first axis A, means e.g. sleeve 33 and bolt 34 for non-rotatably fixing the first rotatable member 27, 28 to the brake arm 4, and means (e.g. also sleeve 33 and bolt 34) for non-rotatably fixing the second rotatable member 33, 34 to the first rotatable member 27, 28. The brake shoe 5 is thereby adjustable for the rims of wheels having different diameters. The specification illustrates three embodiments of the invention, as in the accompanying figures with various forms and arrangements of the rotatable members and the fixing means associated therewith. <IMAGE>
Patent GB-2090470-A (GB)
Title: Piston position sensing device
IPC: G01M15/06
Filed: 1981-12-14
Abstract: A sensing device for determining that the spool or piston 32 of a hydraulically operated valve has reached the end of its travel comprises a plug 10 which is inserted into the valve body 30 and has its contact 12 earthed through the piston 32 to the body of the valve 30 at the end of each stroke. The duration of each cycle may thereby be monitored and an alarm produced in the event of the duration of a cycle exceeding a pre-determined limit. <IMAGE>