baber/WOPTO huggingface dataset:
Patent GB-2032073-A (GB)
Title: Portable magazine
IPC: F41A9/64
Filed: 1979-09-14
Abstract: The invention relates to a portable magazine for holding gun ammunition, such as air-gun pellets or slugs. The magazine comprises a base portion which has a keyway (2) for slidably interfitting with a key (11) on a base member (B). The magazine also comprises one or more channels (3) for receiving a plurality of air-gun pellets or slugs (5). One base member may be adapted to be attached to the stock of a gun, such as an air rifle, whilst other base members are adapted to be attached to a strap or a belt (32) to be worn by a user. Such a combination enables a user to carry a ready-to-use magazine of ammunition mounted by means of a base member on his gun and further magazines, mounted in a similar fashion, may be carried on his person.
Patent GB-2033034-A (GB)
Title: Infinitely-variable planetary friction gearing
IPC: F16H15/50
Filed: 1979-10-26
Abstract: An infinitely variable transmission unit includes a first body (26) rotatable on a first axis (12) and drivably connected with a unit input (32), and a second body (34) having rolling surfaces (44, 46) about a second axis (40). The second body is carried by the first body so that the second axis is inclined with respect to and intersects the first axis. There is a further a third body in the form of a pair of rings (50, 52) defining rolling surfaces (54, 56) about the first axis. The rolling surfaces of the second body are oppositely inclined so as to be of variable radii whereas the rolling surfaces of the third body are of relatively constant radius. The rolling surfaces are in frictional engagement with each other at contact points and means (58, 60, 62, 64) are provided for adjusting the position of the contact points to vary the ratio of the rolling surface radii. A first output shaft (70) is driven by gears (76, 80, 82) and a second output shaft 72 is driven by a ring gear (78) engaged by gear (76). <IMAGE>
Patent GB-2037885-A (GB)
Title: Pneumatically Controlled Device for the Indirect Injection of Fuel Into Internal Combustion Engines
IPC: F02M69/20
Filed: 1979-11-21
Abstract: The device comprises  a pneumatic sensor 5 responsive to induction manifold pressure, connected to a stem 20 of a needle valve fuel injector 21 by means of a  mechanical linkage primary adjustable resilient means 11, 16 act on the linkage 10, 12, 20 for adjusting the rate of valve opening with respect to change of manifold pressure; and an adjustable means 23 acts on the linkage for adjusting the bias tending to keep the valve closed when there is no pressure depression in the manifold. The sensor may be a barometric capsule and the device mounted directly in the induction passage. <IMAGE>
Patent GB-2039037-A (GB)
Title: A light pen for the screen of a video unit
IPC: G06F3/0354
Filed: 1979-12-04
Abstract: A light pen for the screen of a video unit has a tubular casing, 1 accommodating a photoelectric element 4, an electric switch 5b, 6b, and a sensing tip 3 which can be displaced axially to actuate the switch. Two printed circuit boards 5, 6 mounted transversely of the casing carry the opposite poles 5b, 6b of the switch, and the two boards are movable towards one another to produce switch contact against the bias of a helical spring 7 which surrounds the two poles and which also makes electrical connection between peripheral parts of the two boards. The photoelectric element is mounted on one of the circuit boards nearer to the sensing tip. <IMAGE>
Patent GB-2040965-A (GB)
Title: Preparation of components of olefine polymerisation catalysts
IPC: C08F4/02
Filed: 1980-01-16
Abstract: A process for polymerizing alpha-olefins in the presence of a catalyst comprising two components. Component A is obtained by mixing a magnesium dihydrocarbyloxide compound with a tetravalent, halogenated titanium compound and then contacting the resultant product with a dihydrocarbylmagnesium compound. Component B comprises a metallic hydride or an organometallic compound, e.g., an organoaluminum compound.
Patent GB-2045534-A (GB)
Title: Improvements in or relating to a tap switch for a tapped transformer
IPC: H01F29/04
Filed: 1980-03-13
Abstract: A tap switch of a tapped transformer comprises a contact bridge, which is rollable along two circular arcs and which includes two contact rollers (8, 9) axially connected with each other and rotatably mounted in a contact bridge carrier. The contact arrangement also comprises stationary contacts, which are arranged on the circular arcs and which are constructed as individual contacts (2, 3) on one arc and as a contact track (6) on the other arc. A connection between two contacts of the two arcs is effected by means of the rollable contact bridge. The axial connection of the contact rollers (8, 9) is by way of a flexible conductor (12). Each roller (8, 9) is rotatably mounted on a respective arm (10, 11) of the contact bridge carrier and the arms (10, 11) are movable relative to each other. <IMAGE>
Patent GB-2048178-A (GB)
Title: Trailer suspensions
IPC: B60P1/02
Filed: 1980-03-27
Abstract: A suspension assembly for trailers, particularly boat trailers, comprises a wheel mounting arm 74 pivotally mounted on the trailer chassis 68 and a screw jack 70 acting between the wheel mounting arm and resilient means such as a conventional trailer suspension unit 72 mounted on the chassis. Operation of the screw jack raises and lowers the wheel mounting arm and thereby provides the trailer with ground loading capability. The suspension is particularly suited to adaptation of existing trailers. <IMAGE>
Patent GB-2052752-A (GB)
Title: Improvements Relating to Beat Rate Sensors
IPC: A61B5/024
Filed: 1980-04-11
Abstract: A portable electric beat monitoring device is provided which may take many forms, but advantageously may resemble a wristwatch case (40) having a strap (45) by which it may be attached to a wrist so that a light emitting diode (42), for example in a protuberance (41) on the base of the case (40) may transmit light which, when reflected, will be received by a light dependent resistor (43). The light intensity received will vary at each pulse beat and a convertor circuit (Figs. 2, 3 or 4), within the case will determine the time between pulse beats and convert this to a beat rate per minute, to be displayed as a digital display through a window (44). The device could alternatively monitor electrical, pressure, displacement, blood flow, density or acoustic changes associated with a pulse beat, such as by a diaphragm, a piezoelectric crystal, a microphone, a capacitor/resistor and/or indicator or an optical fringe detector. <IMAGE>
Patent GB-2074965-A (GB)
Title: Structural connection
IPC: B65G19/28
Filed: 1980-05-03
Abstract: A structural connection, for connecting together two adjacent structural members 11, 12 comprises receiving means 21, 22, 23, 24, 31, 32 and a connector 25 which are so shaped that the connector is positionable in the receiving means from a side and in a direction transversely of the members with its longitudinal axis lying generally parallel to the lengthwise axes of the members. The connector is turnable with respect to the receiving means and about its axis through a predetermined angle to enable it to be retained in the receiving means. One end portion 27/37 of the connector is shaped so as axially then to receive an adapter 38 whose surfaces 40, 42, 43 simultaneously come into such engagement with surfaces 30, 44, 45 on the connector and on one of the structural members as to resist rotation of the connector about its axis and detachment from the receiving means. <IMAGE>
Patent GB-2052461-A (GB)
Title: Silicon purification method
IPC: C01B33/037
Filed: 1980-05-22
Abstract: A method for purifying silicon comprises extracting heat from an impure silicon in a metal solvent to provide a solid phase containing silicon in crystal form and to concentrate impurities in a molten phase. After a desired amount of heat has been extracted, a substantial part of the molten phase is separated from the solid phase. A fraction or portion of the solid phase is remelted for purposes of removing solvent metal, including impurities, from the crystals, end et least one fraction of the remelted material is separated from the crystals.
Patent GB-2053117-A (GB)
Title: Railway coupler carrier assembly
IPC: B61G9/22
Filed: 1980-06-16
Abstract: An improved railway coupler carrier assembly comprises a spring basket 52, having front 54, rear 56, end, and bottom 58 walls, with a plurality of compression springs disposed therein; a coupler carrier 24 having a lower portion disposed in the spring basket 52 and being supported on the compression springs for vertical movement in the basket 52; and a wear element 74 defined by a front wall, a rear wall and a bottom wall and located so that the front, rear and bottom walls are adjacent to at least a portion of the inside surfaces of the front 54, rear 56 and bottom walls 58 of the spring basket 52, respectively. Reduced wear between the spring basket 52 and the coupler carrier 24 is obtained. <IMAGE>
Patent GB-2089448-A (GB)
Title: A speed-change gear mounted outside a bicycle
IPC: B62M9/1246
Filed: 1980-12-12
Abstract: The disclosed speed-change gear includes a fitting 7 secured to the frame of a bicycle, a parallel link means having an outside link 16 and an inside link 9 whose one ends are pivotally connected at 17, 12 to the fitting, a movable member 25 pivotally connected to the opposite ends of the inside and outside links, a changeover frame 33 rotatably secured to the movable member, which changeover frame carries a guide wheel and a tension wheel for a chain, and a cam means adapted to selectively move said movable member so as to shift the speed- change ratio by changing the position of said changeover frame to shift the chain to the desired step of a multi- step sprocket assembly of the bicycle. The cam means has a spring-biased cam 18 rotatably mounted on a shaft 17 connecting the outside link to the fitting 7, which cam rotates together with a wire-operated reel coaxially mounted on said shaft. The rotation of the cam actuates said parallel link means through a lever 11 pivotally carried by a shaft 12 connecting the inside link to the fitting 7. <IMAGE>
Patent GB-2067057-A (GB)
Title: Sound system
IPC: H04S3/02
Filed: 1980-12-19
Abstract: A system for surround sound utilizes three audio channels two of which are either in phase or 180 DEG  out of phase for all angles of elevation and azimuth of the incident sound and which can be decoded to give good quality stereo reception. The third channel contains the signal indicative of the "front-back" information and this signal is chosen to yield the best quality of surround sound reception consistent with minimum interference to the quality of mono and stereo reception for a given type or range of programme material. Preferably, the third channel is phase shifted by 90 DEG  with respect to the phase of the other two channels. The three audio channels can be derived directly from three directional microphones or can be derived from the Ambisonics 'B' format but in either case an encoding matrix of the following form is used:-   <IMAGE> where  SIGMA ,  DELTA  and T are the signals in the three audio channels and W, X and Y are the input signals to the encoding matrix.
Patent GB-2068526-A (GB)
Title: Heat exchanger frame components
IPC: F28F3/08
Filed: 1981-01-13
Abstract: A head 4 or follower 12 of a plate heat exchanger frame is made-up from separate slabs (e.g. 5, 6, 7 or 13, 14, 15). A range of heat exchangers may then have common standard upper and lower slabs and either no intermediate slab or a selected one or more of a range of intermediate slabs according to length of the heat exchanger plates. In use, the respective head or follower slabs are detachably secured together by means such as bolts, dowels or interfitting joints. Slots 11, 17 are provided for tie bars, and apertures such as 9 may be provided for the fluid supply and discharge ducts. <IMAGE>
Patent GB-2071061-A (GB)
Title: Removing sheets and articles from the bottom of pile using suction sheet etc. deflectors
IPC: B65H3/08
Filed: 1981-01-30
Abstract: Individual removal of flat flexible articles from the bottom of a pile is effected by downwardly deflecting the front edge of the article to form a deflection (7) while drawing the side edges of the article (3) inwards. The deflection (7) is formed initially by vertically movable suction discs (10) and can be maintained after termination of the suction in the discs (10) and during at least a part of the removal of the article (3) by other gripping means, such as suction heads (12, 18), which grip the article (3) in its front edge zones adjoining the zone of deflection (7). The lowermost article is laterally removed by the reciprocating table (4) and the associated suction heads (12, 18). The remaining articles (2) are kept back in the pile (1) by a stop finger (5) having a lowermost end (8) below the level of the supported pile bottom. The article can be deflected by a stationary suction head positioned between a pair of conveyors removing the lowermost article (Figures 8 and 9) and the leading edge of the article may be bowed partially upwards in its central region (Figures 9-11) by a shaped suction panel. The lower front edge of the stop fingers is barbed and pointed (Figure 13) to assist retention of the remaining articles in the pile. <IMAGE>
Patent GB-2086207-A (GB)
Title: Machine for treating seed- containing fruit
IPC: A23N7/08
Filed: 1981-02-16
Abstract: A machine for treating seed- containing fruit comprises a drive unit (2) which drives a first pair of drums (4) in opposite directions, at the same speed, and a second pair of drums (5) in opposite directions at different speeds, through a gear box (3), the drums being mounted in a box (8) which is open at its upper end for the introduction of fruit which is broken open by passage between the drums (4) and shelled by passage between the drums (5) before passing through the open lower end of the box (8) onto rollers (6) which may be driven by or independently of the drive unit (2) and gear box (3). Of the processed material dropping onto the rollers (6), the shredded matter passes between the rollers onto the ground while the seeds and rinds slide over the rollers into a cylinder (7) which is rotatable by or independently of the drive unit (2) and gear box (3) and is perforated around its circumference for the passage of the seeds into a hopper (10) while the rinds are discharged from the other end of the cylinder. <IMAGE>
Patent GB-2073317-A (GB)
Title: Hydrogen-oxygen thermochemical combustion initiation
IPC: F02N19/04
Filed: 1981-03-20
Abstract: A hydrogen-oxygen thermochemical combustion initiation process and apparatus combust hydrogen in a hydrogen-oxygen combustion chamber and pass the hot hydrogen combustion products to a primary fuel combustion chamber providing mixing, chemical pretreatment and ignition of the non-hydrogen primary fuel. The apparatus and process of this invention provide improved thermal efficiency, reduced emissions and capability to employ alternative fuels in a wide variety of combustion systems having both internal and external combustion and stationary and mobile installations, such as vehicle engines, both gasoline and diesel, gas turbines, Rankine and Sterling cycle engines, furnaces and boilers, including coal and oil fired. <IMAGE>
Patent GB-2074498-A (GB)
Title: A method of moulding articles such as seat portions and backrests for seats and an improved tip up seat
IPC: B29C69/00
Filed: 1981-04-28
Abstract: A method of moulding includes providing a mould comprising two separable parts 30, 31, introducing into the mould a parison 33 of mouldable and settable plastics, causing the plastics to conform to the mould e.g. by blow moulding, removing the set moulding from the mould and splitting the moulding so as to form two or more articles such as a backrest 13 and a seat portion 14 for a seat. The seat for which the portions 13, 14 can be used may be of a tip-up type in which the seat portion 14 is movable between a substantially horizontal portion and a tip-up position. The seat portion 14 is pivotally mounted on members 10 which carry respective stops 23 for engagement with the seat portion in both the horizontal and tip-up positions. <IMAGE>
Patent GB-2080665-A (GB)
Title: Method for the preparation of poultry for cooking
IPC: A23L13/50
Filed: 1981-05-01
Abstract: Poultry particularly turkey is prepared for cooking by a de-boning technique in which the bones are separated from the white meat in a manner which leaves the white meat substantially in a connected mass. The white meat can optionally be gently treated with a protein extracting agent. The dark meat either together with the white meat or separately is also treated with a protein extracting agent e.g. polyphosphate to form an adhering mass. The treated dark meat, the treated white meat and a frozen shaped mass of stuffing are then assembled and the assembly is then wrapped in the skin and packaged. Fat can be introduced either during the assembly or after assembly has taken place by injection.
Patent GB-2079161-A (GB)
Title: Filtering facepiece
IPC: A41D13/11
Filed: 1981-06-19
Abstract: An improvement in the filtering facepiece described in British Patent Application No. 8009515. The filtering facepiece is made from flexible filtering sheet material in the form of a flat pocket which has the general shape of a section of a frustocone with a closed end and an open edge 4. The pocket has side walls 5, 6 which in use overlie the nose of the wearer and underlie the chin of the wearer respectively. At the closed end of the pocket fold lines 11, 12 are provided to define a quadrilateral surface which is folded to extend inwardly of the pocket to strengthen the pocket against collapse against the face of the wearer on inhalation. The quadrilateral surface comprises two triangular surfaces 7 having a common base 8 and apices e, f opposite the base which lie on the closed end edge of the pocket but inwardly of the corners e', f' of the closed end. <IMAGE>
Patent GB-2079640-A (GB)
Title: Joining lengths of metal strip
IPC: B21D39/03
Filed: 1981-07-07
Abstract: A joint between the overlapped ends of two metal strips comprising strip portions defined by parallel straight longitudinal slits cut through the thickness of both strips, adjacent strip portions being deflected in opposite directions to define a transverse passage and a lock pin 4 located in said passage is characterised in that the said strip portions are pressed into essentially arcuate curvature and the maximum deflection of each strip portion is no more than about 15% of the length of the slits at its longitudinal edges. Apparatus for forming the joint comprises a pair of parallel cutter bars each carrying a plurality of laterally spaced cutter elements which mesh with the cutter elements on the other cutter bar. Each cutter bar is indexable to expose different parts of the cutting edges some of which are recessed to provide inoperative positions. <IMAGE>
Patent GB-2086077-A (GB)
Title: An automatic image quality adjusting device in a copying machine
IPC: G03G15/00
Filed: 1981-08-27
Abstract: The image quality (density) produced in a copying machine, especially one having an automatic document feed, is adjustable by a device comprising a sensing means 7 for detecting the density of an original to be copied, a means 10, 11, 12 for forming a histogram corresponding to the density distribution in the original, as detected by the sensing means, and means for adjusting the image density in accordance with the histogram, e.g. a magnetic brush having means for adjusting the bias voltage is electrophotographic development. The invention enables originals with backgrounds of varying colour to be reproduced with good contract. <IMAGE>
Patent GB-2107304-A (GB)
Title: Pyrrole derivatives
Inventor: WARD ROBERT WILLIAM
IPC: C07D207/337
Filed: 1981-10-07
Abstract: Compounds of the formula (I):   <IMAGE>  and pharmaceutically acceptable salts <IMAGE> and pro-drugs thereof, wherein: Ar is a phenyl group optionally substituted by one or two moieties selected from halogen, C1-4 alkyl, methoxy, methylthio or trifluoro- methyl, or a 2-thienyl group or N- methyl-2-pyrryl group optionally substituted by one or two C1-4 alkyl groups;  R is hydrogen or methyl; and n is 0 or 1 have anti-inflammatory and/or analgesic activity.
Patent GB-2094567-A (GB)
Title: Apparatus including electric current transfer
IPC: H01R39/64
Filed: 1982-01-13
Abstract: Apparatus consuming heavy electric current, such as an arc furnace, has concentric members (1) and (3) between which the current has to be transferred. The member (3) can rotate around, and/or move axially with respect to, member (1). Interposed, an annular member (2) has helically twisted tufts (11) of copper wire slidably retained by bushes (12) in a hole (10). The copper wires are compressed to fit between the members (1) and (3), and the compression is stored as elastic helical twisting energy, ensuring good contact pressure to transfer current between the members (1) and (3). <IMAGE>
Patent GB-2092878-A (GB)
Title: Liquid mahewu production
IPC: A23L7/104
Filed: 1982-02-05
Abstract: A process for producing a beverage includes fermenting a liquid cereal extract to which has been added dairy whey. Also disclosed is a process for producing a beverage which includes fermenting a liquid cereal extract, at least part of which comprises spent grain extract and which may comprise a dairy product other than whey.
Patent GB-2103442-A (GB)
Title: Output-linearizing system for a dual slope analog-to-digital converter
Inventor: JOBBAGY FRANCIS MICHAEL
IPC: H03M1/52
Filed: 1979-07-27
Abstract: Digital linearization of the output of a dual slope analog-to-digital converter 12 is provided by using a programmed micro-computer 25 reading a programmable-read-only- memory (PROM) 28 to run a variable frequency clock 30. The clock is regulated during the fixed time period of the converter at a frequency comprising an even multiple of the power line frequency, and during the variable time period at various frequencies in accordance with deviation from linearity of the analog input.
Patent GB-2114521-A (GB)
Title: Conveyor feeding device
Inventor: NAIR MOOLAMKUZHIEL RAGHAVAN VI
IPC: B65G47/68
Filed: 1982-02-11
Abstract: A feeding device for feeding articles to a conveyor of a conveying system which has a plurality of discharge stations at which articles carried by the conveyor can be discharged, comprises first and second conveyors (20, 22) extending from two loading points (12, 14) at each of which code setting means (16) are provided enabling a destination code to be fed into a control unit, to a third conveyor (21) which merges articles from two streams into a single stream for feeding to the conveyor of the conveying system. One of the conveyors (20, 22) includes a section which can be braked to inhibit movement of an article along that conveyor and the control unit is operative to control the brakable section (32) such that articles are delivered by the first and second conveyors (20, 22) to the third conveyor (21) with predetermined minimum spacings. <IMAGE>
Patent GB-2117666-A (GB)
Title: Emulsification
Inventor: DAVIES GRAHAM ARTHUR
IPC: B01F3/08
Filed: 1982-03-09
Abstract: Emulsification is effected continuously in at least two steps. The first step involves emulsification with continuous feed of the liquid phases so as to produce an intermediate emulsion containing droplets of interior phase dispersed throughout an exterior phase substantially all of which are of size lying within the range of from about 20 to about 30 micrometres. The intermediate emulsion is then continuously fed to a final emulsification stage in which it is subjected to further shear conditions so as to produce a final emulsion containing interior phase droplets dispersed in the exterior phase substantially all of which are less than 10 micrometres in diameter. Such a continuous emulsification process can be included in a continuous "liquid membrane" extraction process, e.g. for hydrometallurgical extraction of copper.