baber/WOPTO huggingface dataset:
Patent GB-2051977-A (GB)
Title: Power Transmission Mechanism
IPC: B62D11/10
Filed: 1980-05-09
Abstract: A power transmission mechanism for a heavy vehicle includes a hydrodynamic torque converter 24,27 driven by a gear 22 and driveably connectible co-axially to epicyclic change-speed gearing 29 etc., an intermediate shaft 13 driven at 40,39 by said gearing and driveably connected at its ends to respective epicyclic gear units 42,43,45 for driving output shafts 15 at opposite sides of the vehicle, and a steering mechanism (not shown) e.g. of hydrostatic type so connected driveably at 56,59 to the epicyclic gear units as to be capable of varying the relative rotational speeds of the output shafts. To enable an important portion of the power transmission mechanism to be readily tested, replaced if the event of failure, or even used independently in a vehicle steered in more conventional fashion, the torque converter and the epicyclic change speed gearing are designed so as together to constitute a variable- speed gearbox incorporating all necessary clutches 31,32,33 and/or brakes 34,35,36,37 in a case 60 which is separable as an independently operable module from the remainder of the power transmission mechanism. <IMAGE>
Patent GB-2056634-A (GB)
Title: Improved collimator gun sight
IPC: G02B23/10
Filed: 1980-05-14
Abstract: A collimator gun sight is formed of a solid block of glass with plane parallel opposite end faces (31) and (41). A partially reflecting concave surface (37) in the block forms an image at infinity of a graticule pattern (43) which is illuminated by light entering the block through a window (44). The block is made from a rod (30) with plane end faces (31), (33) and a lens doublet element (34) cemented to one face (33). <IMAGE>
Patent GB-2053014-A (GB)
Title: Improvements relating to foam generators
IPC: B01F5/02
Filed: 1980-05-21
Abstract: In a foam generator for generating fire-fighting foam there is provided a mixing device to ensure the intimate mixing of air and fire-fighting liquid to improve the stability and uniformity of the foam. The foam mixing device comprises a tubular body (1) having a number of coil springs (3) arranged transversely across it, the springs (3) being preferably arranged diametrically across and staggered in the rotational sense to form a generally helical element. <IMAGE>
Patent GB-2053313-A (GB)
Title: Concrete floor construction which is insulated at the underside, and elements of insulating material used therewith
IPC: E04F15/02
Filed: 1980-05-29
Abstract: A concrete floor construction consisting of interspaced mutually parallel inverted T-beams (1); of elements (2, 3) of insulating material which cover the underside of the T- beams (1) and of the floor construction and constitute a permanent form between the T-beams; and of a floor surface (8) obtained by casting concrete over the T-beams (1) and the form elements; said insulating elements comprising on the one hand U-shaped elements (2) which grip around the ends of the legs directed towards one another of the T-beams and on the other hand essentially plate-shaped elements (3) which rest on the upper legs of the U-shaped elements (2). <IMAGE>
Patent GB-2043527-A (GB)
Title: Process for producing plastic foils with increased surface friction
IPC: B29C48/10
Filed: 1979-10-31
Abstract: Process for producing foils or films of plastic material with increased surface friction. According to the invention, two or more foils are extruded, laminated and stretched together, the supply of material (6) to the extrusion of the foil or foils which are to form the surface layer (7) being controlled in such a way that the amount of plastic material is insufficient to form a coherent layer when the laminated foil is stretched. In this way the surface layer (7) will break at stretching and give a rough surface with an increased surface friction.
Patent GB-2057814-A (GB)
Title: Ultrasonic transducer head
IPC: G01N29/24
Filed: 1980-07-30
Abstract: The ultrasonic transducer head is adapted to operate at a predetermined frequency and comprises at least one piezoelectric plastic film transducer having front and rear surfaces and electrodes electrically connected to said front and rear surfaces, respectively. A barrier layer which is substantially impermeable to sound at said predetermined frequency is provided on the rear of said transducer. <IMAGE>
Patent GB-2086848-A (GB)
Title: Blister Packs
IPC: B65D75/36
Filed: 1980-09-18
Abstract: A blister pack 1 comprises a transparent plastics blister 2 defining article containing compartments 5, 5a with a carrier 3 therefor. The blister is secured to the carrier by a line heat seal 7 along a peripheral portion 4 of the blister inwardly from the free edge 8 of the peripheral portion so as to be readily removable from the carrier by peeling. The line heat seal is formed by an edge of a steel strip of a heat sealing jig. <IMAGE>
Patent GB-2068312-A (GB)
Title: Aircraft wing and flap arrangement
IPC: B64C9/18
Filed: 1981-01-13
Abstract: An aircraft wing and flap arrangement comprises a fixed wing portion (1), a flap (2) pivotted at 3 to the fixed wing portion, and a variable camber upper surface member (6) anchored to the fixed wing portion (1) and resiliently biassed toward the flap (2) at all times. Upper surface urging means, in the form of a cam track (9) secured to member (6), and associated cam track engaging member (10) on an arm (11) secured to the flap (2), control the movement of the upper surface member (6) so that on a relatively small deflection of the flap (2), the upper surface of the wing is substantially continuous, whilst on relatively large downward deflections the upper surface urging means urge the upper surface member from the flap to open a slot (12). In one embodiment, a lower surface member (14) is urged by lower surface urging means (18, 20, 23) towards the upper surface member on relatively large downward deflections of the flap. <IMAGE>
Patent GB-2067857-A (GB)
Title: Power control apparatus
IPC: G05D23/19
Filed: 1981-01-14
Abstract: In order to limit the disturbance to the mains supply caused by periodic energisation and de- energisation of a resistive load such as the heater of the grill of an electric cooker, the heater is split into two heating elements which are energised alternately each for a period of time set by a user operable control 2. The mark to space ratio of the energisation of the partial loads 1a and 1b is varied in dependence upon the setting of the control 2. In order to provide fast response when the apparatus is first turned on, circuitry 16 overrides the proportion of control and energises both loads 1a and 1b simultaneously for a predetermined period of time long enough to bring the heater up to its working temperature. Means e.g. bimetal trips 21a, 21b, (figs. 3, 4) are also disclosed to isolate the heaters in the event of failure of the triacs which control their energisation. <IMAGE>
Patent GB-2066646-A (GB)
Title: Apparatus and processes for producing composite ice confections, and products thereof
IPC: A23G9/00
Filed: 1980-07-21
Abstract: A process for producing a composite edible product in which a dry edible material, for example a baked wafer container, is separated from direct contact with a water-containing edible material, for example ice confection, by a relatively water-impermeable edible fat-containing layer, by applying a spray of the fat-containing material to the dry edible material before application of the water-containing edible material, characterised in that the spray of fat-containing edible material is applied from an atomising spray gun and has (when measured at 46 DEG C) the following viscosities: n3 at least 10 poise, n100 at least 2.0 poise, preferably 2.0-3.6 poise, and nCA at least 1.2 poise, preferably 1.4-3.4 poise.
Patent GB-2093495-A (GB)
Title: Tile Edge Trim Strip
IPC: E04F19/06
Filed: 1981-02-25
Abstract: A tile edging strip (1) for an array of tiles (e.g. on a flow or wall) is of a substantially L-shaped cross-section, comprising a base portion (2) and an edge portion (3) thereon. The base portion has a plurality of apertures (4) therethrough, each of a substantially right-angled triangular configuration. The apertures act as a key for mortar and, when the strip is cut (at 4a and 4b) facilitate bending thereof around angles. <IMAGE>
Patent GB-2070964-A (GB)
Title: Analysis of ionic species using a chromatographic separation medium
IPC: G01N30/96
Filed: 1981-03-02
Abstract: Method and apparatus for chromatographic separation and quantitative analysis of ions of like charges in a sample, e.g., cations or anions. For the analysis of inorganic anions, the sample and an eluent are directed to a column 13 of hydrophobic porous chromatographic separation medium (organic resin or bonded phase) having high surface area, without permanently attached ion exchange sites. The eluent (a polar mobile liquid) includes an organic cation which reversibly adsorbs to the resin to create ion exchange sites which differentially retard the anions for chromatographic resolution. The eluent also includes a developing reagent of the same charge as the ion to be analyzed. The eluent including the resolved anions is then passed through an ion exchange resin 14 which precludes passage of the counter-ion and its co-ion in ionized form and then through a conductivity cell 15 for quantitative detection. Inorganic cations may be detected in an analogous manner. The system may also be employed to analyze highly organic cations or anions (e.g., surfactants). In this instance, the organic ion of interest is already strongly attracted to the porous chromatographic separation medium, and so the counter-ion may be inorganic. <IMAGE>
Patent GB-2095713-A (GB)
Title: Building blocks
IPC: E04B2/18
Filed: 1981-03-09
Abstract: A building block has a tongue 11 on one side and a complementary groove 24 on the opposite side. The tongue has a portion 14 intermediate its ends which is of different thickness and is arranged to key with a complementary portion the groove whereby to prevent relative displacement of two engaged blocks longitudinally of the groove's axis. If the blocks have tongue and groove sets on two perpendicular pairs of walls, more positive alignment is achieved if the intermediate portions 14 are of increased thickness with arcuate edges concentric with the centre-line of the block. Cylindrical holes 12, 13 can be formed within the intermediate portions, to provide reinforcing or service ducts in a structure formed from a plurality of the blocks. T-shaped blocks and blocks with thickened buttress portions are disclosed. <IMAGE>
Patent GB-2078941-A (GB)
Title: Apparatus for measuring oil concentration in liquids
IPC: G01N21/64
Filed: 1981-05-20
Abstract: Apparatus for measuring oil concentration in liquids, which provides a high metering sensitivity, has a source (3) transmitting ultraviolet radiation into the liquid (7) causing the oil (9) to fluoresce and at least one detector (10 and/or 24) which receives fluorescent light (11) in proportion to the oil concentration, the source (3) being actuated by alternating current at a specified frequency (preferably not mains frequency) and being disposed with the detector (10) on a common axis as close as possible to the liquid (7), while the ultraviolet radiation beam is highly constricted and enters the liquid substantially vertically. The source (3) is assembled with a concave mirror (4), a filter (8) permeable only to ultraviolet radiation and/or a collecting lens. The source (3) may be annular with the detector (10) at its midpoint, or the or an additional detector (24) may be annular and concentrically surround the source (3). <IMAGE>
Patent GB-2076956-A (GB)
Title: Burner
IPC: F23D14/10
Filed: 1981-05-26
Abstract: The present invention improves a conventional Bunsen burner by providing it with a primary combustion chamber 7 which covers the primary flame forming portion 6 of the Bunsen burner and which has a secondary flame hole 8 immediately above the primary flame forming portion 6. The burner apparatus of the present invention produces reduced NOx since the overall combustion is divided into primary flame combustion and secondary flame combustion. Further according to the invention, an indication of incomplete combustion due to oxygen deficiency in the ambient air or blockade of the primary air passage can be dependably detected for cessation of combustion by providing a flame rod 9 and measuring the impedance (or ion current) of the rod. <IMAGE>
Patent GB-2079489-A (GB)
Title: Governor mechanism
IPC: F02D1/12
Filed: 1981-06-15
Abstract: A governor mechanism for use with a fuel pumping apparatus includes a centrifugal weight unit 14 coupled to the fuel control member 70 through a pivotal lever 65. A governor spring 53 opposes the action of the weight unit and this is coupled to the weight unit through a fluid servo-mechanism 20,21 and a further lever 55 the pivot point of which can be adjusted by a manually operable lever 63. The lever effects movement of a roller assembly which includes a roller 61 which engages a ramp surface 62 and a further roller engaging the lever 55. As the lever 63 is moved the pivot point of the lever 55 is altered as also is the position of the pivot on the ramp surface <IMAGE>
Patent GB-2080490-A (GB)
Title: Homokinetic joint of the tripod type
IPC: F16D3/207
Filed: 1981-07-15
Abstract: The homokinetic joint is of the tripod type in which the tripod is axially retained by an elastically yieldable attachment. In the free state of the joint, each branch (15) of the attachment (12) has a curved shape and extends alongside the corresponding petal portion (11) of the tulip element (4) of the joint with a radial clearance in substantially all of its length. In this way, the attachment can itself ensure a precise prestressing of the tripod element against the inner end of the tulip element while it is capable of resisting abnormally high axial forces.  Application in the driving of front wheel drive vehicles. <IMAGE>
Patent GB-2097969-A (GB)
Title: Electronic timepiece
IPC: G04G9/00
Filed: 1979-01-11
Abstract: An electronic timepiece having voltage regulation, temperature detection and battery voltage detection means provided on the same integrated circuit as is used for timekeeping circuitry, and having external terminals for stepwise weighted adjustment of timekeeping gain/loss.
Patent GB-2083786-A (GB)
Title: A trailer coupling device for vehicles
IPC: B60D1/52
Filed: 1981-08-24
Abstract: The trailer coupling has a supporting element 1 adapted to be secured to the vehicle and to which a neck 3 carrying a ball coupling 4 can be secured by a taper pin 5. The neck 3 has an internal, stepped, bore slidable onto a cylindrical surface of the supporting element 1. The neck has aligned holes and a weld nut to which the taper pin 5 is in use, threadedly engaged, whilst the supporting element 1 has a correspondingly tapered bore. Rotation of the pin is prevented by a spring clip provided with a chain to secure it to the neck 3. <IMAGE>
Patent GB-2083788-A (GB)
Title: Arrangement in or relating to a floating body
IPC: B63B21/50
Filed: 1981-09-09
Abstract: In a floating body (1) which is anchored to the sea floor (2) by means of a plurality of elongate, generally vertical tension members (3, 4), where at least some of the members are pretensioned to such a degree that the body is kept at a draught making its buoyancy greater than its weight a method for damping cyclic movements comprises that at least one of the tension members (4) is subjected to impose tension variations which are greater than the tension variations caused by the movements of the floating body (1) in the remaining tension members (3). An arrangement for performing the method comprises means (6-14) arranged to move at least one of the tension members' (4) attachment points in the body in the longitudinal direction of the member, preferably generally in step with the movements of the body and generally in the same direction as the body is moving with respect to the sea floor (2). <IMAGE>
Patent GB-818644-A (GB)
IPC: F04C14/26
Abstract: 818,644. Rotary pumps. HOBOURNEATON MANUFACTURING CO. Ltd. Feb. 19, 1957 [Aug. 13, 1956], No. 5582/57. Class 110 (2). In a pumping system comprising a pump having two working chambers such as 20, 22, Fig. 1, the combined output of the chambers is fed to a valve 18 having an outlet port 58 and an adjustable spring-loaded plunger 52 controlling by-pass ports 38, 40, each communicating with the chambers 22, 20 respectively. In a modification, Fig. 4, the valve is responsive to flow rather than pressure and comprises bypass ports 138, 140, a ported plunger 152 and a discharge port 158.
Patent GB-2092201-A (GB)
Title: Building block
IPC: E04B2/24
Filed: 1982-01-21
Abstract: The block is hollow and has spaced side walls (20, 30) interconnected by integral webs and end walls (32, 32a). In the vertical and horizontal edge surfaces of the side walls tongues (2, 2a) and grooves (1a) are provided adapted to be engageable with grooves and tongues of adjacent blocks. The end walls are recessed and have cutouts to form, after assembly, communicating vertical and horizontal passages for receiving reinforcing members and to be filled with concrete. The building block may form part of a wall building system comprising module blocks of different sizes as well as corner blocks and cavity closure members. Details of using the system at corners and around window apertures are given. <IMAGE>
Patent GB-2092717-A (GB)
Title: Hydraulic control valve assembly
IPC: E21D15/51
Filed: 1982-02-05
Abstract: A hydraulic control valve assembly 10, for use in a mineral mining installation, comprises a housing 10a containing a pressure- relief valve 11, 13 and a hydraulically- operated actuator 17, 24 therefor. The housing has an inlet 14 connectible to a hydraulic consumer, and an outlet connectible to a hydraulic return line 16. The valve has a seat 13 and a spring-biased ball 11, and is positioned in the fluid flow path between the inlet 14 and the outlet. The actuator is constituted by a piston 17, a push rod 24, and a control chamber 22 connectible to a hydraulic control line 23. The push rod 24 is displaceable to move the ball 11 from the valve seat 13. Pressure surges which may occur in the control line 23, when it is connected to a return line, are inhibited from opening the valve 11, 13 by valve means 29. Alternatively, both sides of the piston are exposed to the return line pressure when the valve is closed. <IMAGE>
Patent GB-2095121-A (GB)
Title: Anaesthesia apparatus having manual or automatic ventilation
IPC: A61M16/00
Filed: 1982-03-22
Abstract: Anaesthesia apparatus comprises a vessel 48 connected to a fresh gases supply tube 34 and an exhaled gases tube 32. A flow control device 12 connects the tubes to a face mask and is such that gas is preferentially drawn by the patient from the supply tube during inhalation and is preferentially directed into the supply tube during exhalation. A bag 50 is connected to the exhaled gases tube and the interior of the bag is connected to the fresh gases supply tube. An outlet port 54 from the vessel is provided for connection to a manual or automatic ventilating means and a further port 52 is connected by way of a valve 56 to exhaust. The valve is infinitely adjustable between a position in which the further port is closed and a position in which substantially unrestricted flow can take place through said further port. <IMAGE>
Patent GB-2096603-A (GB)
Title: Process for preparing tert-alkyl ethers
IPC: B01J8/02
Filed: 1982-03-29
Abstract: A process for preparing tertiary alkyl ethers from isoolefins and aliphatic alcohols in the presence of a catalyst in the form of sulphonated styrene-divinylbenzene resins, characterized in that both the reaction leading to the formation of the tert-alkyl ether and the separation of the tert-alkyl ether from the hydrocarbons and compounds which accompany it take place in a single plate fractionating apparatus, in which some of the plates are provided with beds of catalyst in the form of spherules suitable for preparing said tert-alkyl ether, the ether obtained being withdrawn as a substantially pure bottom product.
Patent GB-2096717-A (GB)
Title: Seals
IPC: G21F7/005
Filed: 1982-04-08
Abstract: An aperture 13 through a biological shield is sealed by a flexible sheath 21 having a beading 27 at one end located on an annular member 29 slidable in the aperture 13 such that the beading 27 bears in sealing engagement against the sides of the aperture 13. The annular member 29 is retained by a retractable latch 34, and can be rejected by pushing it out of the aperture 13 using a replacement annular member 29 with a replacement sheath 21 thereon to butt against the annular member 29 to be rejected. The replacement annular member 29 may be mounted on a tubular device (62, Fig. 3, not shown) having an outer co-axial member (75) for operating the latch 34 when the replacement annular member 29 butts against the annular member 29 to be rejected. <IMAGE>
Patent GB-2119142-A (GB)
Title: Inactivity alarm system
Inventor: MORRISON JOHN MALCOLM
IPC: G08B21/04
Filed: 1982-04-08
Abstract: Inactivity alarm apparatus for monitoring the well-being of a subject individual comprises a transmitting station carried in the shoe of the subject arranged to transmit a burst of r.f. radiation upon each step taken by the subject and a remote receiving station (Figure 2) to receive the transmitted bursts which each reset an interval timer (28). If inactivity persists for, say, a 2 minute interval without a resetting transmission an alarm (36) is sounded. The apparatus differs from similar inactivity alarm apparatus in that the transmitting station includes an electrical generator in the form of a piezoelectric element which is struck a percussive blow each time pressure is placed on the shoe and the electrical pulse generated is applied by way of spark gap element to a tuned circuit embedded in the heel of the shoe which radiates a burst of decaying oscillations for resetting the interval timer. The use of a self contained generator simplifies the construction and obviates the disadvantages associated with battery operated systems of remembering to switch the apparatus on and off and checking the charge status of the batteries to avoid false alarms. <IMAGE>
Patent GB-2100041-A (GB)
Title: An obliterator and relative card
IPC: G07F7/02
Filed: 1982-05-10
Abstract: Longitudinal grooves and/or ribs (2a,2b,2c) depart from the card's (1) forward extremity (1a), likewise two similar rows of toothing (3) occupying a limited portion of the card. The obliterator is furnished with a slot (30) accessible from without, whose cross-section complements the card's transverse profile and whose two longitudinal grooves (32a, 32b) serving to accommodate the said toothings (3) give place to teeth of corresponding small cogwheels (36a, 36b) idling on respective shafts. Insertion of the card (1) into the slot (30) causes gear-pairing of the cogwheels (36a,36b) with the toothings (3), interception, or not, of mechanical tracer points (24,25,33,34,37) linked with corresponding micro-switches (24a,25a,33a,34a,37a), with predetermined areas of the card, with consequent excitation of an electromagnet (16) commanding a blade (19) which clipsaparing (Z) from the card's (1) forward extremity (1a); the number of clippings equates to the number of teeth (3a) in each of the card's toothings and the final clipping may be effected only when individual microswitch (34) is inserted into the corresponding aperture (45) located within the card itself. Each accomplished clipping occasions activation of a corresponding microswitch (18a) which in turn activates a drinks/services vending unit (50). <IMAGE>