baber/WOPTO huggingface dataset:
Patent GB-1479643-A (GB)
Title: Liquid-crystal display device
IPC: G09F9/30
Filed: 1974-10-31
Abstract: 1479643 Numeric display PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 31 Oct 1974 [3 Nov 1973] 47172/74 Heading G5C In a multi-digit numerical display incident light passes through transparent glass face plate 1 carrying on its rear surface transparent SnO electrodes, seven per digit in the form of figures of eight 11, 12 connected by transparent connections and separated by a layer of nematic liquid crystal suspension from a glass rearplate 2, not necessarily transparent, carrying a specularly selecting A1 coating 9 in the form of one region 14 including counter electrodes 15, 16 opposite electrode groups 11, 12, and a second region 13 separated by a thin etched line 20 from the region 14, covering the remainder of the field. Drive signals applied between specified electrodes in groups 11, 12 and counter electrode area 14 causes turbulence and optical scattering by the crystals, making the segment visible. A 1 kHz signal may be applied to region 13 to prevent scattering in this area with low threshold compositions. Scattering from the connections will in either case be prevented and coplanarity of rear electrodes and reflective prevents double imaging.
Patent GB-1411272-A (GB)
Title: Digital data sorting system
IPC: G01S7/292
Filed: 1972-10-16
Abstract: 1411272 Pulse radar MULLARD Ltd 16 Oct 1972 47583/72 Heading H4D A digital data sorting system comprises a plurality of stores having a common input and a matching circuit and a counter corresponding to each store, each matching circuit being coupled to the corresponding store for determining when digital data supplied to the common input matches that in the corresponding store and having an output for stepping the corresponding counter when a match occurs; the system also includes a "preference" circuit for resetting all but a given one of those stores the contents of which match each particular set of data supplied to the common input to ensure that each particular set of data is retained in only one store. In the embodiment there are several sets of pluralities of stores and the data is digitized representations of signal frequency, bearing, pulse width and pulse amplitude of radar signals received from various radar sources.
Patent GB-1119607-A (GB)
Title: Polarized ceiling panel
IPC: F21S13/00
Filed: 1966-10-26
Abstract: 1,119,607. Panels for suspended ceilings. R. A. D. SCHWARTZ. 26 Oct., 1966, No. 48014/66. Heading F4R. A panel for a suspended ceiling consists of polarizing means which transmits a maximum percentage of the light at an angle corresponding to Brewster's angle, and a prismatic refracting sheet, the refracting elements or undulations of which are on the side away from the incident light. The polarizing means may be a multiplicity of polarizing sheets 15 and may be spaced from the refracting sheet 12, the side remote from the sheets 15 being formed with concave recesses 21 or undulations of generally sinusoidal form. Diamond or other shapes may also be used. The panel is supported below the ceiling 18, the intervening space enclosing light sources 17. The space between the sheets 12 and 15 serves to dampen sound vibrations and may be supplemented by a second space above the sheet 15. The inidvidual layers of the sheet 15 may also be joined only at the edges to allow access of air between the layers for sound reducing.
Patent GB-1415296-A (GB)
Title: Ballistocardiograph
IPC: H04R19/04
Filed: 1971-10-15
Abstract: 1415296 Detecting body movements NATIONAL RESEARCH DEVELOPMENT CORP 8 Nov 1972 [15 Oct 1971] 48082/71 Heading A5K [Also in Division G1] A ballistocardiograph comprises a mounting 1 adapted for positioning on a body part of a patient, e.g. a cap for the head, a mass 5 resiliently attached to the mounting, a variable volume compartment 2 whose volume is changed by movement of the mass 5, the compartment having an outlet through which air is displaced in accordance with volume variations, and means responsive to displacement of air for producing an output signal depending on the volume of the compartment. As shown, the mass is attached by a leaf spring 6, and the compartment has an outlet 4 in which a thermistor 7 is arranged. The thermistor is arranged in a bridge circuit with a temperature compensation thermistor 8. A meter or recorder is provided to detect unbalance. In an alternative, Fig. 2 (not shown), the compartment is formed by a rigid wall of the mounting 1 and a diaphragm on which the mass is suspended by the leaf spring. In a further alternative, Fig. 3 (not shown), the mass 5 is arranged centrally in a diaphragm to form one wall of the compartment which communicates with a variable capacitance capsule.
Patent GB-1122433-A (GB)
Title: Improvements in or relating to rotary fluid pumps
IPC: F04C2/344
Filed: 1965-11-12
Abstract: 1,122,433. Rotary pumps. HYPRO Inc. Nov.12, 1965 [Dec.17, 1964], No.48159/65. Heading F1F. A rotary pump of the roller-vane type comprises a cup-shaped housing 14, Fig. 3, closed by an end plate to form a cylindrical pumping chamber 34 within which a rotor 70 fixed to a driving-shaft 72 eccentrically rotates to pump fluid from one or other (or both) inlets 40a, 40b, Fig. 1, to one or other (or both) outlets 50a, 50b. The inlet and outlet not in use is suitably plugged. The rotor 70 includes a plurality of slots extending radially inwardly from the rotor periphery and the whole width of the rotor. Each slot receives a freely rotatable roller 86 and has a depth equal to the roller diameter and leading and trailing faces 80, 82 angularly disposed with respect to each other with the trailing face substantially along a radial plane of the rotor. It is stated that the shape and size of slot reduces roller wear and pump chatter and eliminates vibration and scuffing and permits the using of materials such as nylon and hard rubber for the rollers. When each roller reaches the 12 o'clock position, Fig. 3, it moves smoothly from engagement by the trailing face 82 to engagement with the leading face 80 under the pressure difference between the pressure and suction sides of the pump with the rotor webs between the slots forming an effective seal since the roller diameter equals the slot depth. As shown, the angle between the leading and trailing faces is between 35 degrees and 45 degrees, preferably 45 degrees. In another embodiment, this angle is between 15 degrees and 25 degrees, preferably 20 degrees, with both the leading and trailing faces disposed in radial planes of the rotor. Bottom studs 26 enabling the cover to be secured to the housing 14 are lengthened to permit of the screwing on of further nuts to mount the pump.
Patent GB-1039510-A (GB)
Title: Universal joint
IPC: F16D3/72
Filed: 1964-10-01
Abstract: 1,039,510. Universal joints. EATON YALE & TOWNE Inc. Oct. 1, 1964 [Oct. 23, 1963], No. 48420/65. Divided out of 1,039,589. Heading F2U. The subject matter is the same as for Specification 1,039,589, but the claims are directed to the fact that the spring units are frustoconical.
Patent GB-1334789-A (GB)
Title: Assembly for the projection of the images of a multiplicity of  phtographs onto a common screen
IPC: G03B23/06
Filed: 1971-10-19
Abstract: 1334789 Optical projection apparatus Y J L RUELLAN 19 Oct 1971 [23 Oct 1970] 48596/71 Heading G2A  A projection assembly includes several cell each of which includes a projection 8 and at least two mirrors 10, 12, 13 arranged at 45 degrees to the light path 11 for directing an image on to a translucent screen 14. Each cell may be housed within a casing 1, 2, 3 braced by console 4. For the projection of a rectangular image the mirrors 12, 13 are trapezoidal and geometrically similar. The mirrors 10, 12, 13 may be aluminised and coated with silicon oxide. As shown in Fig.2 such cells are stacked in housing 15 having a front door 14 acting as the screen. The screen 14 is a panel of thick glass having an internally bonded layer of translucent plastic. A grid of images is projected on to it and the projectors 8 may be set to change their slides after predetermined intervals which are not necessarily the same for each projector. To facilitate the stacking of the cells, the sides 2, 3 may be tapered and the mirrors 12, 13 by projecting beneath and above their respective cells provide a better utilisation of space. Induced draught ventilation is provided by fans 22 and air filters are located in the floor of the housing 15. Alternative arrangements using a projector and only two mirrors in each module are described.
Patent GB-1185316-A (GB)
Title: Improvements in and relating to Partitioning.
Inventor: PAYTON LEONARD HENRY
IPC: A47B91/02
Filed: 1966-10-31
Abstract: 1,185,316. Securing partitions to floors. VANESTA MFG. Ltd. 27 Oct., 1967 [31 Oct., 1966], No. 48625/66. Heading A4H. [Also in Division E1] An adjustable pedestal for supporting partitions clear of the floor comprises a hollow upper part 1a for attachment to a partition and a lower foot part 3 for attachment to the floor, the upper part having a serrated boss 6 for selectively engaging serrations 10 in the foot 3. The two parts are retained in engagement by a screw 2 passed through a cover 1b for the upper part 1a and screwed into a hole in the boss. The upper part 1a is wider at the top than at the bottom.
Patent GB-1523299-A (GB)
Title: Circular knitting machines
IPC: D04B9/00
Filed: 1975-11-27
Abstract: 1523299 Knitting-machines ELITEX 27 Nov 1975 [6 Dec 1974] 48716/75 Heading D1C In a circular knitting-machine the sinkers 1 perform an inclined rising motion to assist in drawing loops under the guiding engagement of an edge 19 of the sinkers with a surface 13 of a guide ring 7 (Fig. 13) after which, to tension and hold the loops during the subsequent clearing movement of the needles, the sinkers perform a horizontal motion (Fig. 2) or a motion at a smaller inclination (in either sense) to the horizontal, under the engagement of an edge 26 with a surface 17 of the ring 7, this keeping the necessary clearing height of the needles to a minimum.
Patent GB-1359630-A (GB)
Title: Process for preparing 3-hydroxy-isoxazole derivatives
IPC: C07D261/12
Filed: 1972-10-23
Abstract: 1359630 Isoxazole derivatives NIPPON CHEMICAL INDUSTRIAL CO Ltd 23 Oct. 1972 [23 Oct 1971] 48800/72 Heading C2C Isoxazole derivatives of general formula wherein R<SP>1</SP> represents H, alkyl, aryl or aryl substituted by halogen, nitro or C 1-4  alkyl are prepared by reacting a compound of formula wherein R<SP>2</SP> and R<SP>3</SP> each represent a C 1-4  alkyl group, with hydroxylamine in the presence of alkali, and then treating the product with acid.
Patent GB-1216652-A (GB)
Title: Projection screen
Inventor: HUTCHINSON BENJAMIN MARTIN
IPC: G03B21/58
Filed: 1966-11-01
Abstract: 1,216,652. Projection screens. B. M. HUTCHISON. Jan.16, 1968 [Nov.1, 1966], No. 48971/66. Heading G2A. A projection screen assembly comprises a rectangular projection surface, the horizontal and vertical dimensions of the boundary of the surface being in direct proportion to those of the transparency to be projected, and a support assembly for the surface with means for rotating the surface or a non-reflective mask defining said boundary, in a vertical plane between predetermined positions angularly displaced by 90 degrees in order to intercharge the horizontal and vertical dimensions of the surface. A flexible screen is wrapped on roller 2 mounted on two crossed struts 3 supported on spindle 4 and held against locating studs 3a on support plate 5. Spindle 4 passes through an adjustable vertical column 10 and is rotatable by means of a weighted cord 17 wound on drum 16. Rotation is controlled by a spring- loaded catch 21 which may be pneumatically or otherwise withdrawn from engagement with four radial abutments on plate 5.
Patent GB-495367-A (GB)
Abstract: 495,367. Vibratory mechanism. WOLSINGHAM STEEL CO., Ltd., and BLAIR, G. June 8, 1938, No. 17039. [Class 80 (iv)] In order to minimize the alternating stresses between the compound eccentric c, c<1> and the control sleeve g in devices of the type described in Specification 300,835, [Class 122 (i)], a fly-wheel U is freely mounted on a concentric part of the shaft a and connected to the sleeve g of the eccentricity-adjusting device. This is movable along the shaft by means described in the above-mentioned Specification. The connection comprises a rod f secured to the part g and passing through a hole in the fly-wheel and through a slide f engaging a radial fork c<2> on the sleeve c. The fly-wheel steadies the motion and diminishes wear between the key g<1> and the groove a<3>.
Patent GB-1453191-A (GB)
Title: Conveyor systems for cigarettes and other rod-like articles
IPC: B65G47/56
Filed: 1972-10-27
Abstract: 1453191 Conveying cigarettes MOLINS Ltd 26 Oct 1973 [27 Oct 1972] 49787/72 Heading B8A Cigarettes are conveyed by a system comprising a conveyer having protrusions on its operative face and a pulley having a smaller diameter portion between two larger diameter portions, the conveyer passing round the smaller diameter portion and between the larger diameter portions. In the Figure, two such conveyer systems are combined to form a vertical feed. Each conveyer 44, 46 comprises an integrally moulded or laminated band (Figs. 7 to 11, not shown), or a chain carrying slats each slat provided with protrusions. The protrusions 44A, 46A are generally triangular in cross section. A pair of endless belts 51, 53, 55, 56 passes round the larger diameter portions of each pulley and round a second small pulley 52 &c., and the protrusions extend from the respective band no further than the combined distance of the excess diameter of the larger diameter portions over the smaller diameter portions and the thickness of the belts 51 &c., so that as the bands pass round the pulleys, cigarettes are supported by their ends on the larger diameter portions of the pulleys, and are no longer contacted by the protrusions. The vertical feed may be used as a variable capacity magazine in a system for conveying cigarettes from making machines to packing machines.
Patent GB-1320234-A (GB)
Title: Process for the production of a water-permeable porous concrete
IPC: C04B20/02
Filed: 1970-10-21
Abstract: 1320234 Porous concrete HENKEL & CIE GmbH 21 Oct 1970 [22 Oct 1969 (2)] 49883/70 Heading C1H A water permeable concrete contains cement, e.g. slag cement, granular mineral aggregate having a uniform grain fraction between 3 and 30 mm. with a tolerance latitude (defined) of 4 to 15 mm., e.g. gravel with the optional addition of asbestos in an amount up to 5% by wt. of the aggregate; 0À05 to 2À0 wt. per cent (based on the cement) of a macro-molecular water soluble substance, e.g. vegetable gums, cellulose ethers, acrylamides, polyvinyl ethers and sulphonic acid salts; and water to give a total water/ cement ratio of 0À32 to 0À48. In addition 0À005-0À08% anionic or nonionic wetting agent, aqueous dispersions of thermoplastic materials, e.g. polyvinyl propionate, butadiene/styrene copolymers and/or bitumen, and accelerators, e.g. calcium chloride, silicic acid or water glass may be included.
Patent GB-1452129-A (GB)
Title: Hammer drills
IPC: B25D11/12
Filed: 1973-10-26
Abstract: 1452129 Percussive drills ROBERT BOSCH GmbH 26 Oct 1973 [28 Oct 1972] 49903/73 Addition to 1447867 Heading B4C [Also in Divisions B3 and F2] The electrically-operated hammer drill of the parent Specification is modified by having the intermediate shaft 11 together with its gearwheels 20, 21 for the two-speed rotary transmission and its gear-wheel 22 for the percussive mechanism of unitary construction. Other modifications include having the axes of all the gear-wheels in a single central plane, using a bearing block 17 screwed to the housing, and having a slip clutch, Fig. 4 (not shown) with thrust rings (77, 78) which yield apart by balls (36) or by rollers (86) Fig. 5 (not shown).
Patent GB-1477158-A (GB)
Title: Ornamental fruit stand or tree
IPC: A47G19/30
Filed: 1975-08-07
Abstract: 1477158 Fruit stands R A P QUAYE 7 Aug 1975 [19 Nov 1974] 49930/74 Headings A4A and A4H A fruit stand comprises an upright member t supported on a base f, and wire strands b extending from the upright member t, each strand having at its free end a wire ring r to support the fruit e.g. an orange or apple &c. Hooks h may be provided to support bunches of bananas or grapes. The base f and member t are of tubular metal, the wire strands b being held in the member t by an expanded plastics plug (p).
Patent GB-1345195-A (GB)
Title: Agricultural implements
IPC: A01B63/32
Filed: 1971-11-01
Abstract: 1345195 Agricultural implements DEERE & CO 1 Nov 1971 [2 Nov 1970] 50582/71 Heading A1B The implement Fig. 3 comprises an elongated toolbar 18, which is vertically movable via a tractor three-point hitch 12, 14 Fig. 1, and a plurality of cultivator rigs 20 pivotally connected to the toolbar in spaced locations by upper and lower links 30 and 32 respectively. A pair of lift bars 50, 52 are pivotally mounted on the toolbar, being positioned on opposite side of the tractor, and are located beneath the upper links 30. A pair of hydraulic power units 56, 58 Fig. 1, which are operatively connected between the toolbar and lift bars, permit individual or simultaneous movement of the lift bars about pivotal connections 34 with the toolbar. When the lift bars are pivoted upwardly they engage the upper links and raise the cultivator rigs independently of any movement of the toolbar. Coil springs 90 are tensioned between the upper links and the lift bars so that when the lift bars are pivoted downwardly the springs are tensioned to provide a downward bias on the rigs. Downward movement of the cultivator rigs with respect to the toolbar is limited by pin 46.
Patent GB-1274507-A (GB)
Title: Electric power terminal strip assembly including detachable insulating partitions
IPC: H01R9/26
Filed: 1969-10-15
Abstract: 1,274,507. Terminal strip assembly. COMPAGNIE GENERALE D'ENTREPRISES ELECTRIQUES. 15 Oct., 1969 [23 Oct., 1968], No. 50776/69. Heading H2E. A terminal strip assembly includes a set of terminal members 1a detachably secured to a terminal support bar 30, and a set of detachable partitions 1, one per terminal member, each having a recess with parallel slideways 3, 4 see also Fig. 1 (not shown), with further recesses 7, 8. A member (2), Figs. 1, 3 (not shown), is fixed to a side of each terminal member, and has parallel slideways, with bosses (5, 6) engaging the recesses 7, 8 to hold the partition in the engaged position. Guides 12, 13, fixed to the partition engage member (14), Fig. 4 (not shown), the partition thus being removable only in a direction perpendicular to the axis of the bar 30. Each terminal member comprises an insulating support block 17, upon which are mounted a connecting rod 15 for a terminal lug (not shown), and a cable grip 20. Each terminal member may have two partitions, Figs. 3, 4 (not shown), supporting transparent half-caps 24, 25 protecting the terminal, or a one piece cap may be used. Each partition may be curved,with its maximum width at the terminal positions, and may comprise a projection engaging a recess in the member (2). Each terminal member has an identifying sticker (34) Fig. 3 (not shown).
Patent GB-1447240-A (GB)
Title: 2-bromo-2-hydroxyimino-acetophenones and biocidal uses  thereof
IPC: A01N37/52
Filed: 1973-12-27
Abstract: 1447240 Biocidal application of hydroxyiminoacetophenones ROUSSEL-UCLAF 27 Dec 1973 [27 Dec 1972] 50782/75 Divided out of 1447239 Heading A5E Compositions and methods for combating micro-organisms have as active ingredients 2- bromo - 2 - hydroxyimino - acetophenones o f formula: wherein R is H, OH or CH3. Applications specified are in paper-mill or tannery water, in paint, varnish, glue, ink or lubricating oil, or to the human skin. Specification 1447239 is referred to.
Patent GB-1518448-A (GB)
Title: Digital coding of speech signals
IPC: G10L19/02
Filed: 1976-12-07
Abstract: 1518448 Bandwidth compression WESTERN ELECTRIC CO Inc 7 Dec 1976 [12 Dec 1975] 50905/76 Heading H4R In a coder for digitally encoding speech signals the speech signal is split into a plurality of subbands of non uniform bandwidth, the subbands are sampled at a rate dependent on the bandwidth of the subband, the samples are coded in digital form, and the digital signals of the respective subbands are combined. As described the speech is divided into subbands which all have the same contribution to intelligibility, e.g. 240 to 640 Hz, 670 to 1146 Hz, 1214 to 1770 Hz, and 1872 to 2461 Hz, the signals are shifted to base band, sampled at a rate about twice the highest frequency of the respective base band signal, the samples coded, and the coded samples combined into a single digital stream. The signals can be shifted to base band by a modulation and filtering process, Fig. 2A (not shown) or by a single sideband modulation process Fig. 3A (not shown), or by a filtering and sampling aliasing process Fig. 4 (not shown). The filters can be digital. The base band can be effectively sampled by a decimation process when the original speech is sampled at a high frequency, e.g. 20 kHz, for digital filtering. The digital coding utilises 3 digit pcm for the lowest subband and 2 digit pcm for the remaining subbands. For the aliasing process of Fig. 4 the subbands are positioned so that the band limits are n and n + 1 times the bandwidth. The signal is reconstituted by the reverse of the process of coding. The arrangement allows good quality speech transmission at a minimum bit rate of, e.g. 9,600.
Patent GB-1241070-A (GB)
Title: Shut off valve
Inventor: FOLLETT JOHN LEROY
IPC: F16K31/08
Filed: 1968-10-28
Abstract: 1,241,070. Valves. J. L. FOLLETT. 28 Oct., 1968, No. 50975/68. Heading F2V. A valve for a portable gaseous or liquid fuel heating appliance has a magnetic ball 25 which normally rests on a ring 29 to allow flow from inlet 15 to outlet 14 through seat 12 but which rolls into contact with the seat if the appliance is tipped over. A magnet 17 retains the ball against the seat when the appliance is returned to its proper position and a push-rod 33 is movable against spring 37 to unseat the ball. The push-rod can only unseat the ball as far as the position 40 so that if fuel is still flowing the ball is re-seated upon release of the push-rod. It is therefore necessary to stop the flow of fuel to reset the ball to position 43. In Fig. 2, ball 25 is unseated by push-rod 33 and is also movable into engagement with the seat 75 in response to an impact on the valve or as the result of excess flow through auxiliary ports 89 following pipe fracture. In Fig. 3, not shown, a valve similar to Fig. 1 has the inlet coaxially arranged in the bottom of the valve housing and fuel flows through axial grooves in the housing around the ball chamber. The ball may alternatively be a permanent magnet cooperable with a magnetic seat.