baber/WOPTO huggingface dataset:
Patent GB-1477136-A (GB)
Title: Mine roof support
IPC: E21D23/04
Filed: 1973-10-18
Abstract: 1477136 Mine roof supports DOWTY MINING EQUIPMENT Ltd 27 Sept 1974 [18 Oct 1973] 48621/73 Heading E1P In a mine roof support comprising a roof canopy 2 interconnected to a floor beam 1 by a plurality of jacks 3, 4 the canopy is also secured to the floor beam by guide means comprising a first link 12 pivotally connected to the floor beam, a second link 13 likewise secured to the floor beam at a position spaced from the first link, a third link 16 pivotally connected to said first and second links and an extension 17 fixedly secured to the third link and pivotally connected to the canopy, the arrangement being such that (a) the centre of the pivotal connection to the canopy is limited by the members 12, 13, 16, 17 to move solely in a fixed path at right-angles relative to the plane of the floor beam, (b) the pivotal connection to the canopy is arranged to permit angular tilting of the canopy relative to the floor beam about two axes both of which lie parallel to the plane of the canopy and (c) to resist angular movement of the canopy relative to the floor beam in the plane of the canopy.
Patent GB-1470290-A (GB)
Title: Bar bending machine
IPC: B21D7/024
Filed: 1975-11-26
Abstract: 1470290 Bending EVG ENTWICKLUNGSU VERWALTUNGS-GmbH 26 Nov 1975 [16 Dec 1974] 48652/75 Heading B3E A bar bending machine controlled by a programme control device comprises a stationary mandrel 1, a bending tool 3 swingable about the mandrel, and a clamping device 25 upstream of the mandrel along a bar feed path, to prevent the bar from twisting about its axis during bending, e.g. in the case of bar having helically arranged ribs. In the figure, bending is effected by a jack 4, and a movable clamp element 11 is forced against a fixed clamp element 10 by jack 13, the piston of the latter having a larger cross-section than that of jack 4. The fixed clamp element 10 may serve also as the fixed element of a bar shear device. The two jacks may be controlled by a single electrohydraulic valve 20 as shown, or by separate valves. On completion of the bending step, the bar may be advanced for shearing to length or for a further bend. An alternative bending mandrel may be disposed on the other side of the bar feed path, the tool 3 being disposable and actuable to bend the bar about the alternative mandrel in the opposite direction to that shown. The tool 3 may have an arcuate or V-section groove. Engagement of a stop 80 adjustably mounted on the rod 98 with the ring 88 stops movement of the tube towards the cutter and engagement of a stop 82 adjustably mounted on the rod 98 with a ring 90 controls retraction of the support 64 on which the grippers are mounted and which is secured to the support 86 of stop 82. The distance between stop 82 and ring 90 determines the length of tube to be fed over the cutter 54. In use, while the tube is fed towards the cutter, the cutter unit is fed towards the tube as far as stop (121), Fig. 1 (not shown), will allow, by an hydraulic cylinder (118). A clamp 100 is drawn down by an hydraulic cylinder 106 to clamp the tube against member 102 during shearing. The clamp members are spaced from jaws 58, 60 by 90 degrees and the gripper 60 is disengaged from the tube before the clamp 100 is applied to the tube. The cylinder 30 is actuated to pivot the arm 22 downwardly so that the cutter 54 indents the tube, Fig. 7. The shaft 36 is then rotated through a onerevolution clutch to cause the cutter 54 to roll round the whole inner periphery of the tube to shear off an end portion against an annular cutter. An electrohydraulic system for automatic operation of the device includes a limit switch which has to be contacted by a falling sheared-off end portion before another shear cycle is initiated.
Patent GB-1401927-A (GB)
Title: Toy track section
IPC: A63H21/04
Filed: 1973-10-18
Abstract: 1401927 Toys A FISCHER 18 Oct 1973 [19 Oct 1972] 48654/73 Heading A6S A toy track section 1a has a guide rail 2 and magnetic means, e.g. permanent magnets 8, in its track surface. Oppositely disposed permanent magnets 8 in a toy vehicle 3 are repelled by the magnet field of the track magnets 8 to hold the vehicle spaced from the track section 1a. The toy vehicle 3 may be caused to move either by the slope of the track section 1a, or as shown by an electric motor powered propeller 6. Conductor rails 10 in the track surface are engaged by brushes 11 on the vehicle feeding the motor supply circuit. The ends 12 of the conductor rails 10 project beyond the ends of the track section 1a for engagement by the ends of conductor rails on another track section 1b. The toy vehicle 3 is either centred relative to the guide rail 2 by spring-biassed pins 19, or by wheels (not shown). The end 13 of the track section 1a has undercut grooves 15 for engagement by dovetail-shaped tongues on the end of the adjacent track section 1b. Similar undercut grooves 17 along the sides of the track section 1a may be engaged by dovetail-shaped tongues on the ends of toy building blocks 18. The magnets 8 may be made of an alloy or of a ferrite material.
Patent GB-1292726-A (GB)
Title: Method and apparatus for image reproduction on photochromic material
Inventor: HAMMER JACOB MEYER
IPC: G06F3/153
Filed: 1970-10-13
Abstract: 1292726 Uses of photochromism RCA CORPORATION 13 Oct 1970 [13 Oct 1969] 48694/70 Heading C4S [Also in Divisions H1 and G2] A method of image production on a photochromic member 12 comprises producing an electrostatic charge image on one surface of an insulating layer 20, developing to produce a visible image, e.g. by toner particles, illuminating the insulating member and exposing the member 12 to same to form the final image. The charge pattern may be formed electrophotographically as in Fig. 1 and Fig. 3 (not shown) on a photoconductive insulating layer which may be separate from or adhered to the p.c. sheet in the respective figures, or the charge image may be printed electrostatically on an insulator by potentials as from a computer applied to styli (81) to (85), Fig. 2 (not shown). Photochromic sheet 12 may be a substrate treated with photochromic chemicals such as a bleached sulphite bond chemically treated paper, white and blue before and after exposure respectively, and which may be deactivated by thermal or chemical means. Another paper may change from yellow to blue-green and be deactivated by visible light. Photochromic materials may be sodalite activated by u.v., reversal depending on ambient temperature. The belt 20 comprises an outer conductive layer 34 of light transmitting conductively coated (e.g. vacuum deposited tin chloride, Al, or Cu) plastic material e.g. polyethylene terephthalate resin and photoconductive layer 36, e.g. brominated poly-N-vinyl carboazoles or polyarylmethane dyes intermediates in a binder and with a dark resistivity #10<SP>9</SP> # cm. and at least two orders less than when exposed to light. The image may be on a c.r.t. 16 from a T.V. receiver, computer or flying spot scanner. Corona device 40 uniformly negatively or positively charges layer 36 to be developed by toner particles 52 from magnet brush 50. Filter 44 prevents c.r.t. abrasion by belt 20. Exposure station 54 includes Hg lamp 56 and filter 61.
Patent GB-1517407-A (GB)
Title: Apparatus for the flame treatment of a metal workpiece
IPC: B23K7/06
Filed: 1976-11-25
Abstract: 1517407 Scarfing nozzles MESSER GRIESHEIM GmbH 25 Nov 1976 [28 Nov 1975] 49194/76 Heading F4T [Also in Division B3] A torch for flame treatment of a metal workpiece, with an upper and a lower block 12, 14 spaced apart on a head portion 18 formed with a gas distribution system to provide a treating frame oxygen duct, has a separate nozzle 46, providing an additional oxygen jet, extending into the treating flame oxygen duct. The nozzle 46 has its own oxygen supply pipe 48, is centrally disposed in a distribution passage 26 for the duct 20 and may be used alone for flame treating small areas. Passageways 32, 34 supply combustion gas/heating oxygen for preheating flames 40 for heating a zone 42 to be flame treated. Iron powder from a supply nozzle 52 or an ignition wire may aid preheating.
Patent GB-1510429-A (GB)
Title: Luminescent materials
IPC: H01J61/44
Filed: 1976-11-25
Abstract: 1510429 Luminescent materials PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 Nov 1976 [28 Nov 1975] 49208/76 Heading C4S A fired luminescent material activated by trivalent terbium has a composition of formula (0À5-x-y)Ce 2 O 3 . x La 2 O 3 . y Tb 2 O 3 . MO. p Al 2 O 3  where M is Mg, Zn or Be or mixtures thereof, up to 25 mole per cent of Al may be replaced by Ga and/or Sc, x is 0 to 0À2, y is 0À05 to 0À25 and p is 6À2 to 25. Preferably x is 0, y is 0À15 to 0À2 and p is 10 to 15. A number of specific compositions with different amounts of Al 2 O 3  are disclosed. The compositions may be made by treating a suspension of Al 2 O 3  in a solution containing Ce, Mg and Tb and optionally Al 2 (NO 3 ) 3 , with NH 4 OH. The precipitate is heated twice in air, cooled in nitrogen and then heated again in a damp mixture of nitrogen and hydrogen. The composition may be coated on the inside of a low-pressure mercury vapour discharge tube using nitrocellulose as a binder. The compositions are said to have equal or superior luminous flux after long hours to compositions with a much lower alumina content.
Patent GB-1414796-A (GB)
Title: Method of assembling a plurality of lamelliform components of three different types in a predetermined sequency
IPC: B65G47/68
Filed: 1972-10-25
Abstract: 1414796 Grouping plates; feeding and delivering sheets SOC FULMEN and COMPAGNIE EUROPEENNE D'ACCUMULATEURS 25 Oct 1972 [29 Oct 1971] 49293/72 Headings B8A and B8R Apparatus for grouping negative and positive battery plates 1, 2 comprises a conveyer 11 carrying negative plates 1 and depositing them on a conveyer 12 carrying the positive plates 2, such that the plates are interleaved, means for placing separators 3 between the interleaved plates, and a screw conveyer 27 for moving the plates and the separators closer together until they touch, to form a group, and a drum 34 for discharging completed groups. The plates are formed in pairs interconnected by heels 21 and having upper lugs. The plates 1 are stored in a compartment (5, Fig. 2a) and discharged on to endless belts (7) by a pusher 9 for transfer to the conveyer 11 by suction grippers 23. The conveyer 11 comprises a pair of endless chains trained round sprockets 16 disposed laterally of the plates 1. Each chain carries upper cleats 13 which support one of the lugs on the plates, and pairs of lower cleats 14 which flank an edge portion of each plate 1. The other plates 2 are stored in a compartment (6) and discharged therefrom on to endless belts (8) for transfer to a turret 25, which inverts each plate 2, by suction grippers 24. The turret 25 places the inverted plates 2 on the conveyer 12 which comprises a pair of chains trained round sprockets 19 and carrying double cleats 17 which flank an edge portion of each plate 2, and a belt having yokes 18 in which the plates 2 nest. The separators 3 are stored in magazines 30, 30<SP>1</SP> and discharged into partitions 29 on an endless chain 28 by pushers 31, 32 for transfer to the screw conveyer 27. The screw conveyer comprises four screws each having a first portion MN of constant pitch for withdrawing the plates 1, 2 from the conveyer 12 and for receiving the separators 3, a second portion NP of decreasing pitch for moving the plates and separators closer together, and a final unthreaded portion PQ at which the plates are supported by guides 50, 51. Separate threads are provided for the plates and the separators. The drum 34 comprises spring biased plates 35 against which completed groups are held by cam-operated tongs 39 for transfer to a saw 36 for cutting the heels 21.
Patent GB-1066258-A (GB)
Title: Improved process for preparing crystalline zeolites
IPC: C01B39/02
Filed: 1964-12-09
Abstract: A synthetic crystalline zeolite (faujasite, or Z-14HS zeolite) of formula Na2O:Al2O3:xSiO2 : nH2O where 3.2<x<6.0, and n\sF0 but <9, which has an effective pore size of <\>t13<\>rr176d is convertible into the hydrogen form without appreciable collapse of its crystal structure, is prepared from an aqueous mixture of sodium hydroxide, alumina and fine-sized silica, which has been previously calcined at 90-650 DEG  C. for 0.1 to 72 hours, by ageing, and heating to between 50 DEG  and 120 DEG  C. to crystallize the faujasite.  The molar proportions of the reactants are:  Na2O/SiO2 = 0.17 to 1, SiO2/Al2O3 = 6 to 40, H2O/Na2O = 20 to 80.  The silica is preferably calcined at 90-150 DEG  C. until its water content is below 4.5% by weight, or at 155-650 DEG  C. until its water content is 0.5 to 4.2%.  Before calcination, the silica preferably has an average particle diameter of 0.01-10m .  The reaction mixture may be made by mixing silica in water with a solution of alumina in sodium hydroxide by either the " slurry " process, in which the molar ratios of reactants are Na2O/SiO2 = 0.25 to 1 preferably 0.5, SiO2/Al2O3 = 10 to 40, e.g. <\>t20, H2O/Na2O = 20 to 80, e.g. <\>t40, or by the preferred "paste" process in which the molar reactant ratios are Na2O/SiO2 = 0.17 to 0.60, e.g. 0.3 to 0.36, SiO2/Al2O3 = 6 to 12, e.g. 8 to 10, H2O/Na2O = 25 to 75, e.g. 40.  The mixture may be aged at 20-60 DEG  C. for 3-300 hours, and then may be heated at 75-100 DEG  C. for 3-72 hours, or at 90-110 DEG  C. for 16-72 hours. The zeolite may then be converted to the hydrogen, alkali metal, alkaline earth metal, e.g. calcium or rare earth metal cation forms.
Patent GB-1513987-A (GB)
Title: Kit for constructing a hand and finger orthesis
IPC: A61F5/01
Filed: 1976-12-02
Abstract: 1513987 Hand orthesis W G BIEDERMANN 2 Dec 1976 [4 Dec 1975] 50239/76 Heading A5R A hand and finger orthesis comprises a forearm brace 10 adjustably connected to a hand brace 21 by a rigid or hinged bar that is apertured to provide for adjustable fitting. The hand brace 21 comprises upper and lower webs 22, 23 which are connected by a narrow flexible strip 24 and which can be drawn to each other by straps 26, 28. The upper web 22 has screwed sockets 29 for the attachment of aids such as finger loops 38 or braces. The loops are attached by draw lines 36 to an angled spring wire 32, 34 secured by a slotted bar 30 and guide 31 that are removably secured via one of the sockets 29.
Patent GB-1275727-A (GB)
Title: Improvements in and relating to switching units
Inventor: IVE GOODWIN ALFRED GEORGE
IPC: H01H50/02
Filed: 1968-10-23
Abstract: 1275727 Movable magnet switches GAGIVE 7 Oct 1969 [23 Oct 1968] 50385/68 Addition to 1178957 Heading H1N [Also in Division G4] A switching unit used in the protective system claimed in the parent Specification has a magnetic contact device 1 and at least one unidirectional current conducting device such as a diode 6 connected in series or across its contacts; the two devices being potted in a container to form a unitary structure 9 and the contacts actuated by a magnetic means such as a movable magnet (not shown) located externally of the structure 9 on a door or window. The contacts may be biased to the closed position by a tubulan or bar permanentmagnet (Fig. 2, not shown) which may also be within the structure 9.
Patent GB-1189144-A (GB)
Title: Magnetic Tape Cartridge Player with Radio
IPC: G11B5/48
Filed: 1967-04-05
Abstract: 1,189,144. Radio receivers &c. LEAR JET INDUSTRIES Inc. 5 April, 1967 [5 April, 1966], No. 50395/69. Divided out of 1,189,142. Heading H3Q. [Also in Division G5] In a combined radio and tape cartridge record player in which a switch 95a coacts with the cartridge 110 to energize a motor control circuit for driving the tape capstan 72 when the cartridge is fully inserted and to energize a radio tuner and detector unit 45 when the cartridge is partially or completely removed, the transducer heads 66, 67 are directly connected to output amplifiers 63, 64 and the radio unit is connected to the amplifiers via impedances 210, 211. The impedances prevent the radio output circuit shunting the head output circuits and the radio output is sufficient to accommodate the resultant loss.
Patent GB-1141879-A (GB)
Title: Improved nut construction and method for securing same to sheet material
Inventor: GILL PETER JOHN
IPC: F16B37/06
Filed: 1966-11-11
Abstract: 1,141,879. Pierce-nuts. G.K.N. BOLTS & NUTS Ltd. 9 Nov., 1967 [11 Nov., 1966], No. 50612/66. Heading F2H. [Also in Division B3] A pierce nut comprises a body portion 10, a pilot portion 11 bounded by a side wall 15 and having a piercing portion 12, and a shoulder 13, which extends outwardly parallel to the plane of the piercing portion from the side wall 15 to the outer wall of the body portion, the side wall of the pilot portion having a generally polygonal cross-section with rounded corners and at least part of the side wall 15 being undercut so as to taper inwardly towards the end of the pilot portion connected to the body portion. In the embodiments described the pilot portion is generally of square cross-section and is undercut either along the straight sides, round the rounded corners or both.
Patent GB-1277168-A (GB)
Title: Dispensing device with rotatable turret
IPC: G07F13/10
Filed: 1970-10-27
Abstract: 1277168 Dispensing cups REED ELECTROMECH CORP 27 Oct 1970 [8 Dec 1969] 50937/70 Heading A4T [Also in Division B8] A cup dispenser comprises a base having a cupdispensing opening, aturret disposed above the base and rotatable relative thereto, and carrying a series of downwardly opening holders for storing upright stacks of nested cups, the holders being angularly spaced and positioned to register successively with the dispensing opening on rotation of the turret, a motor, a releasable coupling between the motor and the turret operable to rotate the turret in a forward direction to advance one of the holders towards and partially past the dispensing opening to allow the stack of cups to fall into the opening, detecting means for detecting when the cups fall into the opening, means responsive to the detecting means to release the coupling and mechanism connected to the turret and operable to positively rotate the turret after release of the coupling in the reverse direction to bring the holder into line with the opening. The positive rotation may be provided by a spring. The spring may be compressed by an arm connected to an arm which rotates with the turret by a friction band passing around the shaft. During forward motion, the spring is compressed by the arm, and, after compression, the arm contacts a stop. This makes the band slip on the shaft. When the motor is stopped the spring positively urges the arm, and hence the turret which is connected to the arm, in the opposite direction.
Patent GB-1244159-A (GB)
Title: Improvements in or relating to stays for windows, doors and the like
Inventor: MATHEWS RALPH JAMES
IPC: E05C17/22
Filed: 1967-11-09
Abstract: 1,244,159. Window, door &c stays. GKN SANKEY Ltd. 11 Nov., 1968 [9 Nov., 1967], No. 51039/67. Heading E2F. A stay for windows, doors and the like comprises a stay bar 2 and a keeper having a passageway 12 through which the stay bar 2 slides, wherein the stay bar is provided with teeth 14 on one side and one wall of the passageway 12 is provided with one or more spaced teeth 13 which are releasably engaged with the teeth 14 by a spring 15 associated with the keeper and adapted to press against the stay bar 2. The keeper consists of a body 6, comprising a spring housing 1 which clips on to a swivel unit 4 carrying the teeth 13, and a base plate 5 on which the keeper body 6 is pivotally mounted. The spring housing 1 carries two leaf springs 15 formed integrally with the housing, against the action of which springs the stay bar 2 is lifted to disengage the teeth 13 and 14 for movement of the stay bar. Alternatively, the spring may comprise a semi-cylindrical spring separate from and trapped in the housing 1, (Fig. 4, not shown). The stay bar 2 is secured to the window or door by means of a universal joint such as a ball joint. The stay-bar and keeper are made from a resilient plastics material.
Patent GB-1505859-A (GB)
Title: Azetidinone derivatives
IPC: A61P31/04
Filed: 1975-12-15
Abstract: 1505859 Clavulanic acid derivatives BEECHAM GROUP Ltd 12 Oct 1976 [15 Dec 1975] 51200/75 Heading C2C Novel clavulanic acid derivatives of the general formula wherein R is a hydrogen or halogen atom or a methyl, ethyl, trifluoromethyl, methoxy, ethoxy or nitro group and X is a hydrogen atom or a hydroxy group, are prepared by U.V. irradiation of a compound of the general formula Pharmaceutical compositions having #-lactamase-inhibitory activity comprise, as active ingredient, a clavulanic acid derivative of the first general formula above, together with a pharmaceutically acceptable carrier and optionally other therapeutic agents such as penicillins and cephalosporins.
Patent GB-1468000-A (GB)
Title: Circuit for gas turbine engine control system
IPC: F02C9/32
Filed: 1974-11-28
Abstract: 1468000 Temperature compensated shaft speed measurement NISSAN MOTOR CO Ltd 28 Nov 1974 [28 Nov 1973] 51553/74 Heading GIN To compensate a first signal from a sensor 34 and representing Ngg, the compressor shaft speed of a gas turbine engine, for variations in ambient temperature ta, the first signal is summed with a second signal representing Nggm.tsd/2 Tsd where Nggm is a predetermined middle value of a range of compressor shaft speeds and tsd, Tsd are average values of engine ambient temperature in degrees Celsius, absolute respectively, which second signal is derived from a generator 36. The first and second signals are summed at 38 and passed to a further summer 40 which also receives a third signal representing Nggm.ta/2 Tsd where ta is the actual engine ambient temperature sensed by sensor 30. The output from summer 40 represents the desired compensated signal. The advantage over the prior art is stated to be that the calculating circuit does not require a square root circuit, in contrast to the prior art.
Patent GB-1063790-A (GB)
Title: Balance assembly for clockwork-movement
IPC: G04B17/32
Filed: 1964-12-18
Abstract: 1,063,790. Clocks and watches. AXHOR S. A. Dec. 18, 1964 [Dec. 18, 1963; Nov. 24, 1964], No. 51673/64. Heading G3T. With the object of improving the concentricity and alignment of the parts, a timepiece balance assembly for a double-roller escapement comprises a cylindrical staff 1 with pivots 2 which is forced into a bush 3 having an undersize bore portion 8a. A collar 3c of the bush is thereby enlarged to grip a locating bore in the balance 4. The bush has two flanges 3a, 3b forming the usual double rollers. The assembly is completed by a collet (5) Figs. 1 and 3 (not shown) for fixing the balance spring. In a modification (Fig. 3) the whole of the bore in bush 3 is initially undersize. The collar 3c is initially oversize, the balance 4 first being forced on to the collar and then the staff forced into the bush.
Patent GB-1028419-A (GB)
Title: Revolving screen wash bath
IPC: D06B3/20
Filed: 1964-12-18
Abstract: A wash bath, particularly for textile material 21, comprising a revolving screen 8 over which the material passes, and a suction pump within the screen 8 effecting circulation of liquor through the screen, is characterised by the provision of at least one filter within the bath in the circulation system of the liquor. The embodiment according to Fig. 1 (not shown), has filters 14, 15 provided in a circulation cycle 13 which is equipped with a pumping unit 24; a strainer 5 is also positioned around the screen 8. Further embodiments, Figs. 2, 3 and 4 (not shown), utilise plate type filters either externally of the screen i.e. filters 1, 11, 17 and 29, or internally i.e. filters 9 and 19.  The filter may, as in the embodiments according to Figs. 5, 6 and 7 (not shown), be in the form of a belt or cloth 36 or 36a.