baber/WOPTO huggingface dataset:
Patent GB-1394265-A (GB)
Title: Multi-stage hoist and control system therefor
IPC: E04G1/22
Filed: 1972-11-17
Abstract: 1394265 Telescopic hoists S W BUSHNELL JNR 17 Nov 1972 [17 Nov 1971] 53305/72 Heading B8H [Also in Division F1] A hoist platform 15, Fig. 1, is raised by telescopic cylinders 11, 12, 13 which are supplied with compressed gas through conduits 18, 22 sequentially so that the lower cylinder 11 is overpressurized to render it more rigid before the third cylinder is extended and pressurized. Fig. 1A shows a circuit for sequentially pressurizing cylinders 11, 12 by opening a valve 36 and then a valve 37 by depressing foot pedals 39 located on the load platform. When a valve is opened cylinder 12 is depressurized causing cylinder 13 to retract. At the bottom of its travel cylinder 13 opens a spring loaded valve 31 so that cylinder 11 is depressurized and cylinder 12 is retracted. Fig. 1B shows a circuit which has only one valve 50 for extending the cylinders. A restrictor 55 ensures that extension and pressurization take place sequentially. Fig. 1C shows an arrangement in which a valve 60 causes extension of cylinder 12 and pressurization of cylinder 11. When this is complete a high pressure sensor 63 opens a valve 64 to complete the raising of the platform. Fig. 2 shows an arrangement in which the spring loaded valve 31 is omitted. Figs. 2A-2F (not shown), illustrate control circuits with different degrees of automatic action during extension and retraction. Figs. 3 and 4 show embodiments with four cylinders and three supply conduits. Figs. 5 and 6, (not shown), illustrate arrangements with five cylinders and two conduits.
Patent GB-1294569-A (GB)
Title: Extraction of tea
Inventor: GURKIN MARTIN
IPC: A23F3/18
Filed: 1970-11-10
Abstract: 1294569 Tea extracts UNILEVER Ltd 10 Nov 1970 [12 Nov 1969] 53337/70 Heading A2B An aqueous suspension of black tea leaves, which may be spent leaves resulting from the hot water extraction of tea leaves, is treated at elevated temperatures, preferably about 100‹C, with calcium hydroxide to dissolve tea solids, and the solution so formed is separated from the residual leaf. The pH of the solution may thereafter be adjusted to about 5. The solution may be dried, if desired after combining with hot water extract of tea leaves, to give an instant tea powder.
Patent GB-1536658-A (GB)
Title: Gas meters
IPC: G01F15/00
Filed: 1975-11-12
Abstract: 1536658 Gas meters R D CARTER 12 Nov 1975 [10 Dec 1974] 53489/74 Heading G1R, A gas meter assembly comprises a control block 10 on which are detachably mounted a prepayment mechanism 13, a filter/governer unit 14 and a meter 15, the meter having an external drive 23 coupled to the mechanism arranged to operate a shut-off valve 20 in the block; also included in the assembly is a manually operated control 21 or 17 for operating valve 20 or another valve 16 in the block.
Patent GB-1292116-A (GB)
Title: Improvements in or relating to pickup-arm actuating mechanism for automatic record changers
Inventor: HUMBY EDWARD THOMAS
IPC: G11B3/085
Filed: 1968-11-12
Abstract: 1292116 Automatic record changer PLESSEY CO Ltd 10 Nov 1969 [12 Nov 1968] 53594/68 Heading G5R In an automatic record changer, the pick up arm lowering position is determined by a single cam member 100, having a pivot position 101 determined by the size of the record to be played, which is engaged by a pin 98 on a plate 33 movable with the arm. During the record change cycle the usual cam disc 7 moves a cranked drive lever 42, which controls the pick up arm movement first in a clockwise and then in an anticlockwise direction. During the first part of this movement a ramp 83 on the lever moves beneath pick up arm lifting spindle 87 and raises the arm and also a drive pin 88 on the lever moves to the end of the first portion 89 of a slot in a pick up control lever 91. Thereafter the lever 91 is driven about its pivot 92 during which a face 93 on the lever engages pin 94 depending from the pick up plate 33 and moves the plate and the pick up arm outwardly to their rest position at which the pin 94 is also engaged by arm .95 of a return lever frictionally coupled to control lever 91. Before the end of the clockwise drive of lever 42 pin 116 moves an arm 114 which in turn pivots single cam member 100 about its pivot 101 to present a face 99 towards an upstanding pin 98 on the pick up plate 33. The pivot position of the cam member is determined by a two-armed lever 102 which is pivoted by spring 104 to a position determined by the manual or other setting of a record size selecting lever 107 formed with recesses 109-111 one of which, depending on record size, receives the pin 105 extending upwardly from the two armed member. As the lever 42 moves anticlockwise, the pick up arm 4 and plate 33 are moved by the return lever 95 until the pin 98 engages the face 99. When the drive pin 88 enters the portion 89 of the control plate 91, the cam member is pivoted out of engagement with the pin 98 and the arm is lowered on to the record.
Patent GB-1468059-A (GB)
Title: Roof structures
IPC: E04B1/58
Filed: 1975-05-22
Abstract: 1468059 Bolts; bolted joints D K GUDGEON 22 May 1975 [11 Dec 1974] 53606/74 Headings F2H and F2M [Also in Division E1] A roof truss of latticework construction, e.g. as shown in Figs. 5 and 6, is composed of elongate members 17, 18 interconnected by bolting, preferably as shown by bolting each member at an intersection to a gusset plate 19, the bolts 1 being, as shown in Fig. 1, of a doubleended form having an intermediate head portion 4, only one of the threaded ends 2 being used to secure the members 5, 6 of the truss, the other threaded end 3 being for the attachment of additional members 9 to strengthen the truss when live or hung loads greater than those for which the basic lattice structure was designed are to be accommodated. The members 5, 6 in Fig. 1 respectively correspond with a chord member 17 and a gusset plate 19 as shown in Figs. 5 and 6, the additional member 9 being a further chord member. Nuts 7, 10 and a packing washer 11 secure the members 5, 9 to the gusset plate 6.
Patent GB-1165689-A (GB)
Title: Improvements in and relating to Water-Cooled Nuclear Reactors
Inventor: WADMARK LARS OLOF TOR
IPC: G21C19/04
Filed: 1966-12-02
Abstract: 1,165,689. Fuelling reactors. ATOMENERGI A.B. 2 Dec., 1966 [3 Dec., 1965], No. 54165/66. Heading G6C. A water-cooled reactor having a core 27 comprising fuel elements 8 in tubes 9 for boiling the water and fuel elements 10 in tubes 28 for superheating the steam, is refuelled through a tube 20, this tube extending through the bottom of the pressure vessel 1 into a reservoir and having within the pressure vessel, at positions situated below and above the core, openings 30 and 31. Thus heat produced by a spent fuel element within the tube 20 causes the coolant to circulate therein, water entering the openings 30 and a mixture of water and steam leaving the openings 31, this circulation promoting cooling of the fuel element. Transfer of the fuel element from the core to the tube 20 is performed by a loading machine 16 having a grab (not shown) which is lowered to engage a member 36 situated at the upper end of the fuel element.
Patent GB-1386069-A (GB)
Title: Extraction or iron
IPC: C22B3/10
Filed: 1970-11-13
Abstract: 1386069 Chemical extraction of iron NATIONAL RESEARCH DEVELOPMENT CORP 14 Feb 1972 54175/70 Heading ClA [Also in Division C7] Iron is extracted in a process which comprises converting iron contained in a feedstock into FeCl 2  in the form of an aqueous solution using an aqueous chloridizing agent containing HCl, precipitating the FeCl 2  from the solution using an agent containing HCl, oxidizing the FeCl 2  to FeCl 3 , and reducing the FeCl 3  to metallic Fe using a gaseous reducing agent containing H 2 . Preferably the oxidation takes place at a temperature at which FeCl 3  is volatile, under anhydrous conditions and with an oxidizing agent containing O 2 . The effluent HCl-containing gas from the reduction stage may be used as a source of HCl for the chloridation and/or precipitation stages, and the heat in the gas may be used to dry the FeCl 2  prior to oxidation. The feedstock preferably contains metallic iron but may be an iron oxide and is preferably chloridated at atmospheric pressure and at 85‹ to 105‹ C. The reduction may be carried out in two stages, the reaction being preferably at 600‹ to 800‹ C. and the product may be in the form of a powder. If the raw material used is Fe 2 O 3 , chloridation yields FeCl 3  and either steps may be taken to avoid this or the FeCl 3  must be reduced to FeCl 2  before continuing. It is also possible to use FeS as feedstock. Cl 2  or FeCl 2  may be added in the oxidation stage where there is an HCl deficiency.
Patent GB-1103680-A (GB)
Title: Process for the preparation of ª-cyanoethyltrichlorosilane
Inventor: GUINET PAUL ALFRED EUGENE
IPC: C07F7/14
Filed: 1966-12-06
Abstract: 1,103,680. Preparation of #-cyanoethyltrichlorosilane. RHONE-POULENC S.A. 6 Dec., 1966 [9 Dec., 1965], No. 54600/66. Heading C3S. #-Cyanoethyltrichlorosilane is prepared by contacting trichlorosilane with at least a stoichiometric amount of acrylonitrile at elevated temperature in the presence of a pyrazolone catalyst. The catalyst preferably antipyrine or pyramidone, may be used in 0À5 to 8% proportions by weight of the trichlorosilane. SiCl 4  may be present as a diluent and the reaction is preferably performed in a nitrogen atmosphere at above atmospheric pressure and temperatures between 110 and 170 C.
Patent GB-1482769-A (GB)
Title: Tuning apparatus
IPC: H03J3/00
Filed: 1974-12-23
Abstract: 1482769 AFC systems; preset tuning arrangements SONY CORP 23 Dec 1974 [27 Dec 1973] 55561/74 Headings H3A and H3Q A tuning apparatus comprises a phase locked loop including a reference oscillator 11, a controlled oscillator 9, a variable frequency divider 8, a phase comparator 10; a dial plate 1<SP>1</SP> (see Fig. 2) having frequency marks covering a predetermined band; a coding arrangement 4 having a series of digital codes in correspondence with predetermined frequencies in the above band, a pick-up device 7 for reading a selected code and a control arrangement responsive to the output of device 7 for varying the divider ratio of 8. The digital code may be a binary or a binary gray code and read out optically, magnetically or mechanically. A fixed divider 17 may precede the divider 8. The coding arrangement may be provided on the dial plate itself. The read out device 7 may be movable with respect to the dial plate or vice versa.
Patent GB-1348729-A (GB)
Title: Push button valve
IPC: F16K21/02
Filed: 1971-11-30
Abstract: 1348729 Valves BROEN ARMATUR AS 30 Nov 1971 [30 Nov 1970] 55612/71 Heading F2V A main diaphragm closure member 7 is controlled by a pilot diaphragm 17 operated by a pivoted handle 5 through a cam surface 26 and a hollow slidable plunger 11 containing a spring-loaded ball 15. When the diaphragm 17 is depressed, a passage 17a is closed and the diaphragm 7 is held closed by inlet pressure acting on its rear face through an aperture 19. In this position, a roller 28 on the plunger 11 has passed the highest point on the cam surface 26 and the handle is thus held in a position in which its upper edge engages the housing 1. Releasing the handle allows the fluid behind the diaphragm to escape through passages 18 and 17a and the valve to open. The cam surface 26 may be formed by a spring. A further valve 31 regulates the rate of flow through the outlet.
Patent GB-1245817-A (GB)
Title: Improvements in or relating to derivatives of (2,4,6-trihydroxy-phenyl)-benzyl ketone
Inventor: VAILLE MADELEINE
IPC: C07C49/835
Filed: 1968-11-25
Abstract: 1,245,817. Composition comprising (2,4,6- trihydroxyphenyl) benzyl ketones. ORSYMONDE. 24 Nov., 1969 [25 Nov., 1968], No. 55887/68. Heading A5B. [Also in Division C2] A pharmaceutical composition contains a physiologically acceptable carrier and, as active ingredient, one or more derivatives of formula in which R represents a C 1 -C 4  alkyl group or an aryl group.
Patent GB-1248414-A (GB)
Title: Improvements in selective detection of ions
IPC: H01J41/06
Filed: 1968-11-26
Abstract: 1,248,414. lonization detectors. GENERAL ELECTRIC CO. 26 Nov., 1968 [28 Nov., 1967], No. 56113/68. Heading H1D. [Also in Division G1] An apparatus for measuring the abundance in a gas of ions having mobilities substantially equal to a preselected value comprises a conduit 1 through which a stream of ion-containing gas is passed at a constant known velocity and a system of electrodes including a switchable electrode 25 and gates 10 and 20 defining a chamber whereby the flow of ions into the chamber can be blocked without impeding the flow of gas, ions of selected mobility can be maintained stationary in the chamber while other ions are removed, and an electrode 35 for collecting ions of the selected mobility. Each gate comprises two grounded electrodes on either side of an electrode 13, 23 which can be connected to ground or to a D.C. source 32 by switches 30 and 31. With electrodes 13, 25 and 23 connected to source 32 no additional ions can pass into the chamber since incoming positive and negative ions are collected by electrodes 11 and 13, respectively. The value of the positive potential is such that positive ions of a selected mobility remain stationary in the chamber, positive ions having a higher mobility being collected by electrode 12 and those having a lower mobility being carried by the gas stream through electrode 25 and being collected by electrode 21. All negative ions are collected by electrode 25. After an appropriate time interval, the potential is removed from electrodes 25 and 23 permitting ions of the selected mobility to be carried through electrode 25 and gate 20 to be collected by electrode 35 and produce a pulse in a measuring instrument A. A positive potential is applied to an electrode 40 to prevent any positive ions being carried through electrode 35. By suitably selecting the times during which the gates are energized, the switch 31 may be omitted. A low reference potential may be used instead of ground, and negative ions can be measured by reversing the stipulated potentials. A uniform potential gradient is maintained along the conduit by a voltage divider 50 comprising a plurality of conductive plates 51 and resistors 52.
Patent GB-1283278-A (GB)
Title: Process for the impregnation dyeing of synthetic fibre materials
Inventor: NEEFF RUTGER
IPC: D06P1/90
Filed: 1970-11-27
Abstract: 1283278 Solvent dyeing FARBENFABRIKEN BAYER AG 27 Nov 1970 [28 Nov 1969] 56405/70 Heading D1B [Also in Division C4] Synthetic materials e.g. polyesters, polyamides, polyurethanes, polycarbonates, polyolefins and cellulose triacetate are dyed by impregnation with a solvent solution of a dye of general formula wherein D is a radical of a carbocyclic or a heterocyclic diazo component, B 1  and B 2  are C 1 -C 6  alkyl, a cycloalkyl or an aralkyl radical and B 1  may also be hydrogen, or B 1  and B 2  may form a C 4 -C 6  alkylene radical optionally substituted by -O-, -S- or -SO 2 -, B 3  is a C 1 -C 18  alkyl or a cycloalkyl radical, the sum of the carbon atoms in B 1 , B 2  and B 3  being 5 to 22, the impregnated material then being given a subsequent heat treatment e.g. dry heat at 120 to 230‹C optionally preceded by an intermediate drying step, or superheated solvent vapour at 100‹ to 150‹C. The dye may be added to the dyebath solvent as a solution in a solvent miscible with the dyebath solvent. Dyebath solvents include tetrachloroethylene, trichloroethylene, 1,1,1,-trichloroethane and 1,1,1-trichloropropane and the solvents miscible therewith include alcohols, dimethylformamide, dimethylacetamide, dimethylsulphonide and sulpholane.
Patent GB-1205606-A (GB)
Title: Device for the static balancing of rotating grinding wheels on grinding machines
Inventor: GERNER HEINZ
IPC: G01M1/36
Filed: 1967-12-13
Abstract: 1,205,606. Balancing grinding wheels. WERKZEUGMASCHINENFABRIK ADOLF WALDRICH COBURG. 13 Dec., 1967 [23 Dec., 1966], No. 56677/67. Heading B3D. [Also in Division F2] A device for static balancing of a rotating grinding wheel 2 comprises a balancing head 4, 4a mounted rotatably in the nose 3 of a hollow spindle 1 of the grinding wheel, and a compensating mass 5 radially movable in relation to the balancing head in the grinding wheel plane, the movement of the head and mass being controlled by separate adjusting rods 6, 7 in the hollow spindle, and adjusting drives mounted on the hollow spindle. The adjusting rods consist of a hollow shaft 6 concentric with an inner rod 7, the shaft being secured to the head 4 which is rotatably mounted in the spindle and is secured to a plate 4a formed with a radial guide 29. A slide 10 is mounted in the grinder and carries the compensating mass which is formed with a semi-cylindrical curved surface 5a complementary to the inner surface of the nose 3 and its centre of gravity at a point M. The rod 7 carries an eccentric pin 12 engaging a transverse groove 11 in the slide, whereby rotation of the rod 7 relative to shaft 6 adjusts the radial position of the mass 5. The rod 7 and shaft 6 may be adjustable manually or each be connected through gearing to separate motors so that when both motors are driven, the rod 7 and shaft 6 rotate together to adjust the direction at which the mass 5 acts and when the rod 2 is  rotated, the mass is adjusted radially to determine the magnitude of its force.
Patent GB-1383808-A (GB)
Title: Bagatelle race game
IPC: A63F9/14
Filed: 1972-12-12
Abstract: 1383808 Indoor games M I GLASS [trading as MARVIN GLASS & ASSOCIATES] 12 Dec 1972 [14 Dec 1971] 57226/72 Heading A6H. In the playing of a racing game, a participant repeatedly operates a plunger 78 and endeavours to launch a ball 86 up a ramp 64 and into an opening 68, through which it can drop into a channel (70) Fig. 5 (not shown) intermittently to close switch contacts energising an electric motor which controls the movement of an associated figure 22 along a track 20. Four figures 22 and four plungers 78 are provided as shown so that up to four players can compete in the game. When a figure 22 reaches the end of its track it engages an actuator to release a sign panel 92 which is then urged upwardly through a slot 94 to indicate that the figure has completed its run.
Patent GB-1401458-A (GB)
Title: Fluid suspended particle monitor
IPC: G01N23/12
Filed: 1972-12-12
Abstract: 1401458 Measuring concentration of suspended particles G C A CORP 12 Dec 1972 57373/72 Heading G1A The concentration of particles suspended in a fluid is measured by apparatus arranged to cause the fluid to pass through a nozzle to form a jet which deposits the particles on an impaction medium aligned with the nozzle, and a beta radiation source and detector arranged on either side of the impaction medium and aligned with the nozzle to measure the amount of material deposited. As shown, Fig.1, the apparatus comprises a nozzle 25 having a small orifice 27 through which air is drawn by application of a vacuum to connector 19. The resulting air jet deposits entrained particles on a plastics film 31 supported on a carrier 33 which has a C-14 beta radiation source 39 recessed into its surface immediately below the orifice 27. A Geiger tube 43 having a thin end window 47 is mounted within the nozzle in alignment with the beta source 33. As air is drawn through the apparatus the amount of material collected on the film 31 increases and the percentage transmission of the radiation decreases as an exponential function of the accumulated mass. The rate of change of the radiation level is related to the concentration of particles in the gas enabling "real-time" (i.e. over a period of about one hour) measurements to be made.
Patent GB-1446437-A (GB)
Title: Screws
IPC: F16B23/00
Filed: 1972-12-15
Abstract: 1446437 Socket spanners FREDERICK MOUNTFORD (BIRMINGHAM) Ltd 7 Dec 1973 [15 Dec 1972] 57890/72 Heading B3N [Also in Division F2] A hand tool to turn a tamper-resistant screw the head of which has a plan form with outwardly convex sides 12, 13 which intersect at positions 14 lying at the corners of a polygon, e.g. a rectangle or a pentagon, the sides curving inwardly towards the axis of the shank as they extend away from the shank to form a generally domed head with a smooth continuous surface, has a socket complementary in shape to the screw head, and has a slight clearance fit on the head.
Patent GB-1406280-A (GB)
Title: Optical borosilicate glass
IPC: C03C3/072
Filed: 1972-12-19
Abstract: 1406280 Optical borosilicate glass JENAER GLASWERK SCHOTT & GEN VEB 19 Dec 1972 58591/72 Heading C1M An optical borosilicate glass has a refractive index n D  of 1À68-1À72 and an AbbÚ number # D  of 43-48, and comprises, in weight per cent the balance, if any, consisting of other compatible constituents. 0-5% Al 2 O 3 , 0-5% WO 3  and/or 0-0À3% As 2 O 3  may optionally be present.
Patent GB-588240-A (GB)
Abstract: 588,240. Clocks. BUTLER, Ltd., H., and BUTLER, H. Sept 3, 1943, Nos. 14414/43 and 13980/44. Drawings to Specification. [Class 139] [Also in Group XIX] An assembly plate or combined dial and assembly plate 'for indicating and measuring instruments made of cast or moulded material and having inset during the moulding one or more screws, pillars or brackets employed for supporting and retaining in position the actuating mechanism or parts thereof of the instrument, the assembly plate or combined dial and assembly plate being constructed independently of the instrument casing and adapted to be secured across the open end thereof. The second Provisional Specification indicates that the invention may be applied to clocks. Specification 566,610, [Group XXXVI], is referred to.
Patent GB-1206418-A (GB)
Title: Centrifuge for spraying liquid material
IPC: B01J2/02
Filed: 1967-12-28
Abstract: 1,206,418. Centrifugal spray producer. NORSK HYDRO-ELEKTRISK KVAELSTOFAKTIESELSKAB. 28 Dec., 1967 [25 Oct., 1967], No. 58880/67. Heading B2F. A centrifuge suitable for spraying liquid material, which may have dispersed solid particles therein so as to form droplets, comprising a perforated prilling cup 1 through which in operation the material is sprayed, and a body 3 disposed in said cup and forming an annular space between the cup and the body, the surface of said body facing the interior of the perforated wall of said container having substantially the same shape as the wall and being substantially concentric therewith. The liquid material is supplied to the annular space 7. In an alternative method (Fig. 2 not shown), the liquid material is supplied to the inside of the body 3 and allowed to flow out through slots or orifices.