baber/WOPTO huggingface dataset:
Patent GB-1349102-A (GB)
Title: Circuit arrangement for stabilising the quiescent current of a complementary transistor amplifier stage
IPC: H03F1/30
Filed: 1971-08-20
Abstract: 1349102 Transistor amplifying circuits GRUNDIG EMV - ELEKTRO - MECHANISCHE VERSUCHSANSTALT MAX GRUNDIG 20 Aug 1971 [20 Aug 1970] 39181/71 Heading H3T In an arrangement for stabilizing the quiescent current of a push-pull amplifier stage, comprising complementary transistors 5, 6 of which the collector-emitter paths are connected in series with respect to a D.C. supply, against fluctuations in operating temperature and supply voltage, an auxiliary transistor 7 has its emittercollector path connected between the bases of the complementary transistors 5, 6, of which the emitter-collector paths are coupled through a circuit element 8 passing direct current, the base of the auxiliary transistor 7 being connected to the junction between the coupling circuit element 8 and one, 5, of the complementary transistors so as to form a closed control loop, and the load impedance 10 is connected by way of a capacitor 9 to the junction between the coupling element 8 and the other, 6, of the complementary transistors. The coupling circuit element 8 may comprise a diode, or alternatively a resistor.
Patent GB-1198447-A (GB)
Title: Releasable Joint
Inventor: FERNBERG PAUL CARL ROGER
IPC: F16B9/02
Filed: 1966-09-07
Abstract: 1,198,447. Stud and socket fastenings. I.T.W. Ltd. 6 Dec., 1967 [7 Sept., 1966], No. 40026/66. Heading B2B. Two substantially rigid members which are releasably joined together comprise. a first member 10 made of wire and bent with two end portions at right angles to a central portion as shown in Fig. 1 and a second member 12 having a hole 26 passing through the member and a groove 30 of the same width as the diameter of the wire extending from the surface of the member 12 to the hole and increasing in depth towards the hole. The members 10 and 12 are connected by inserting portion 18 of member 10 into the hole 26 rotating the member through a right angle so that the portion 16 lies in the hole then rotating portion 18 so that it lies to one side of the groove 30. The member 10 is either free to rotate relatively to the member 12 or is held by a clip 40 on the member. 12. The member 10, 12 are disconnected by reversing the operations for joining. In a modification the groove 30 is on the opposite side of the member 12.
Patent GB-1405830-A (GB)
Title: Gas-solids separator and apparatus for use therein
IPC: B01D46/02
Filed: 1973-08-24
Abstract: 1405830 Gas-solids separator FULLER CO 24 Aug 1973 [13 Sept 1972] 40304/73 Heading BIT A gas-solids separator 1 comprises a housing 2 divided by a cell plate 3 into a lower inlet chamber 6 having gas inlet 10 and an upper outlet chamber having vent outlet 14, communication between the chambers being by way of holes 15 in the cell plate upon which vertical filter tubes are mounted. The upper ends of the filter tubes are connected to a shaker mechanism (not shown) for periodic removal of separated solids which are then removed from the housing by screw conveyor 12. The filter tubes are grouped so as to provide walkways 25, 26 for inspection and changing of the tubes, the walkways being reached by door 28. In order to reach the upper ends of the tubes, walkways 30, 31 are provided at an upper level and are designed so that when not in use they take up little horizontal space. In the embodiment of Figs 1, 2 and 3 the walkways 30, 31 and 32 (Fig 3) are pivotally mounted along their horizontal axis so that when not in use they may be pivoted 90‹ from the horizontal with a subsequent saving of space. The walkways engage with stops 50, 52 mounted on the housing so that they hold firm when in the horizontal position and a bolt mechanism is used for locking them in this position (Figs 4 and 6 not shown). Safety hand rails are provided mounted between posts 71 which themselves pivot 76 so as to fold away when not in use. The walkways are pulled to and from the horizontal position by chains 45. A further embodiment is described (Fig 8 not shown) where, instead of pivoting, the upper walkways are provided with folding extensions by which their width may be increased for use or decreased when not in use.
Patent GB-1195033-A (GB)
Title: Incinerators for Refuse or other Materials Suitable for Use as Low-Grade Fuels.
IPC: F23G5/00
Filed: 1967-09-04
Abstract: 1,195,033. Incinerators; steam generators. FOSTER WHEELER CORP. 4 Sept., 1967 [7 Oct., 1966], No. 40406/67. Headings F4A and F4B. In a refuse burning furnace through which refuse is fed on a grate, the combustion chamber has gas tight water tube panels lining the roof and walls of the combustion chamber. The roof lining panel 54 slopes upwardly from the feed end of the grate and air inlets 42 in the roof are arranged to form a ball of flame 43 above the grate. The burning gases pass up a tube lined shaft 28 to a heat recovery section 14. A burner 48 in the rear wall of the furnace is of sufficient size to operate the steam generator if no refuse is available. The ashes pass to a pit 20. The wall panels are protected by cast iron plates 32 at the sides of the grate, and are formed by welding finned tubes together.
Patent GB-941673-A (GB)
Title: Locking device for the jaws of a mechanical grab
Inventor: MOSKOFF PETER
IPC: B66C1/42
Filed: 1961-11-10
Abstract: 941,673. Lifting-dogs with automatic control. P. MOSKOPF. Nov. 10, 1961, No. 40409/61. Heading B8H. The jaws 9, 10, 11, 12, Fig. 1, of a lifting-dog are held open by a detent 29, Fig. 3, attached to the jaw 11, which engages a plate 41 mounted on the jaw 12, until a feeler 24 abuts the load to be lifted and moves the detent out of engagement with the plate 41. When the device is lowered over a load a fork 25, 26, attached to the feeler 24, is turned anti-clockwise when the feeler abuts the load. This draws a pawl 32, pivoted to the detent 29 to the left against springs 35, 38, thereby releasing the detent and allowing the jaws to close. During lifting the spring 38 pulls the pawl 32 out of engagement with the fork 25 and the parts are as shown in Fig. 5. When the load is set down the jaws open and spring 35 pulls the pawl 32 and detent 29 anti-clockwise to engage the plate 41. As the device is raised unloaded the feeler 24 swings downwards and the fork 25 engages the pawl 32.
Patent GB-1322073-A (GB)
Title: Colour photographic silver halide material
IPC: G03C7/333
Filed: 1970-08-21
Abstract: 1322073 Monoazo dyes AGFA-GEVAERT AG 21 Aug 1970 [2 Sept 1969] 40409/70 Heading C4P [Also in Division G2] Azo dyes of the formula wherein F is 10-20C alkyl or the group Y is -SO 3 H, -SO 3  or -SO 2 NR 3 R 4 ; Z 1  and Z 2 , which may be the same or different, are -COR 5  or -SO 2 R 5 , which groups are either in the 2- and 4-positions or in the 3- or 5-positions of the phenylazo residue; R 1 , R 2 , R 3  and R 4 , which may be the same or different, are H or alkyl, at least one being 10-20C alkyl; and R 5  is OH, O-, alkoxy or optionally substituted amino are prepared by coupling the appropriate diazotized amines with a colourless 1-hydroxy- 2-naphthanilide cyan colour coupler. 1- Hydroxy - 4 - (2<SP>1</SP>,4<SP>1</SP> - disulphophenylazo)- [2<SP>11</SP>- (N - methyl - N - n - octadecylamino) - 5<SP>11</SP>- sulpho] - 2 - naphthanilide trisodium salt is prepared by diazotizing disodium 4-aminobenzene - 1,3 - disulphonate and coupling the product with 1 - hydroxy - [2<SP>1</SP> - (N - methyl- N - n - octadecylamino) - 5<SP>1 </SP>- sulpho] - 2 - naphthanilide.
Patent GB-1021730-A (GB)
Title: Improvements in or relating to reversing mechanisms
IPC: F16D21/02
Filed: 1964-10-05
Abstract: 1,021,730. Reverse gear. VOLVO PENTA A.B. Oct. 5, 1964 [Oct. 14, 1963], No. 40420/64. Headings F2C and F2D. In a forward-neutral-reverse gear, for a marine outboard motor, in which forward or reverse opposed bevel (or spur) gears 4, 5 freely carried by an output shaft 6 and meshing a driving bevel pinion 3 fast with an input shaft 2, are selectively clutched to the shaft 6 by an intermediate double-ended slidable friction core clutch member 12 helically splined on the shaft 6 to provide a self-tightening action on clutch engagement, disengagement of either clutch is effected by operating a manual lever 21 on a control shaft 18 to turn an eccentrically mounted pin 16 permanently engaging an eccentric annular V-groove 15 in the clutch member 12. In operation, the pin 16 rides in the eccentric V-groove 15, the flanks of which axially reciprocate during rotation of the member 12, and moves inwards and outwards in the groove under the action of a spring 19, until operation of the lever 21 turns the control shaft 18 which is thrust axially inward by a cam 22, on a fixed sleeve 17, engaging a pin 23 fast in the shaft 18, to cause the pin 16 to bottom solid in the groove 15 to axially move and disengage the clutch member 12.
Patent GB-1005974-A (GB)
Title: Printers' blanket
Inventor: GRAHAM JOHN ALEXANDER
IPC: C01B7/07
Filed: 1961-11-11
Abstract: In the catalytic oxidation of hydrogen chloride using the catalysts containing copper, rare earth and alkali metal compounds claimed in Specification 908,022, organic contaminants chlorinated by the chlorine formed are removed by passing the catalysed gas mixture together with dilute hydrochloric acid concurrently down at least one tube which is sufficiently cooled to cause the chlorinated organic compounds to crystallize, the rate of flow of the dilute hydrochloric acid being such that the crystals are entrained, and no deposit is left on the walls.  Chlorine is generally the desired oxidation product but the process may be used to remove organic contaminants from hydrogen chloride by the above catalytic oxidation in the presence of sufficient oxygen to produce enough chlorine to chlorinate the organic contaminants. A number of water-cooled tubes connected in parallel may be used. The rate of flow of the HCl may be 3 litres or above per hour per cm. cross-sectional circumference of the tube.  The hydrochloric acid can be recycled to the tops of the tubes.  The concentration of the acid may be controlled by replacing a quantity of it with a more dilute hydrochloric acid (e.g. obtained by water washing the chlorine that has left the bundle of tubes) or water.  The solid material can be separated by filtering or centrifuging or a flotation process, or solvent extraction using, e.g. hydrocarbons or chlorinated hydrocarbons. The apparatus may be made of e.g. glass, graphite, tantalum, polyethylene, "Teflon" (Trade Mark), polyvinyl chloride, or steel coated with these.  The impure hydrogen chloride that yields the starting mixture may be produced in the pyrolysis of dichlorethane or dichlorpropane or in the substitution chlorination of various organic substances. According to an example, hydrogen chloride contaminated with organic compounds was catalytically oxidized at 365 DEG  C. to yield chlorine containing chlorinated contaminants, e.g. C2Cl6.  The gas mixture was cooled from 365-95 DEG  C. by evaporative cooling of recycled 30% hydrochloric acid and the vapours passed concurrently with a mixture of 30 and 13% hydrochloric acid down water-cooled tubes.  The effluent acid (30% HCl) was in part recycled to the tubes and in part to the evaporative cooling, after filtration of the chlorinated contaminants.  The gas mixture now at 40 DEG  C. was passed up a bubble tray tower countercurrent to cold 12% hydrochloric acid, thereby removing in the effluent acid residual chlorinated contaminants.
Patent GB-896626-A (GB)
Title: Improvements in or relating to tunnel kilns
Inventor: KRZEMPEK BERNARD LUDWIG
IPC: F27D19/00
Filed: 1959-11-30
Abstract: 896,626. Tunnel kilns; charging and discharging. CARBORUNDUM CO. Ltd. Nov. 25, 1960 [Nov. 30, 1959], No. 40555/59. Class 51 (2). [Also in Group XXX] A tunnel kiln comprises a preheating section 15 heated by a wire-wound muffle, a firing section heated by silicon carbide elements 13, and batt-carrying ledges 16 in the side walls. Feed and discharge magazines 18 and 19 respectively comprise vertical towers having chain conveyers 20 and 21 equipped with horizontal lugs 22 on which batts are stored. Batts fed in turn to the base of magazine 18 are propelled towards the kiln by projections 30 on a motor-driven chain 28, push each other through the kiln, and are then delivered in timed sequence on to the discharge magazine 19. Push-button controls 23 and 24 for the magazines may be operated manually or automatically. Further electric controls enabling the furnace to be operated completely automatically comprise a time switch for starting the kiln, heating and temperature controllers, a process timer setting the horizontal driving speed, and an automatic circuit contactor or switch. In operation, and assuming a full load in magazine 18 with controls 23, 24 on automatic operation, after a preset time power is automatically switched on to the heating elements. At a preset temperature the temperature controller transmits an impulse to the automatic circuit contactor, which switches on motive power depositing a batt on a loading stage between two projections 30 on the chain 28. This operates contacts 33 stopping descent of the conveyer 20 and starting chain 28 until the batt is moved forwardly rather more than its own length, whereupon a contact 34 is operated to stop the horizontal drive. After a lapse of time governed by the process timer, the feed tower chain 20 again descends to deposit a second batt on the loading stage. The first batt leaving the kiln actuates contacts 36, stopping the horizontal drive and starting upward travel of chain 21. When the latter has travelled a distance slightly greater than the height of the tunnel, a switch 37 is actuated to stop the travel of chain 21 and to restart the horizontal drive. The process is repeated until the discharge tower is loaded to the desired extent, whereupon the first batt opens a contact 38 to switch-off all motive power and, if desired, the heating circuits too. Specifications 674,940 and 752,536 are referred to.
Patent GB-1091877-A (GB)
Title: Method for crystal growth
IPC: C30B15/10
Filed: 1965-09-23
Abstract: 1,091,877. Crystal-pulling. DOW CORNING CORPORATION. Sept. 23, 1965 [Dec. 21, 1964], No. 40639/65. Heading BIS. A silicon dendrite 13 is pulled from a melt 12 in a bath-shaped vessel of graphite 11 which is heated by the passage of a direct current. The vessel may have an inner lining. Auxiliary high frequency heating may in addition be employed.
Patent GB-1215615-A (GB)
Title: Device for subjecting a textile web to pressure and heat treatment
IPC: D06C15/00
Filed: 1968-08-26
Abstract: 1,215,615. Finishing fabrics. H. KRANTZ VERWALTUNGS G.m.b.H. 26 Aug., 1968 [13 Sept., 1967], No. 40656/68. Heading D1S. A device for pressing and heat-treating textile webs comprises a pair of spaced-apart axially parallel drums 6, 8 around which is driven an endless belt 9, there being located between the two drums in the space bounded by the upper and lower runs of belt 9 a pair of struts 11, 12 each in a plane parallel to, but at an angle of 45‹ with the drum axes, one of which struts 11 acts as guide to stear incoming web material 13 into the spandrel between the belt 9 and drum 6 and the other strut 11 guiding material received from between drum 8 and belt 9 out of the device along a path parallel to that of its initial feed. Infra-red heaters 19 are located around the periphery of the drums and the upper run of the belt. Spray nozzles 16 are located between strut 12 and drum 6 to moisten a web 13 before treatment and cooling nozzles 21 are located between drum 8 and strut 11. It is 'stated that a plurality of such devices can be located in parallel. The endless belt 9 is preferably metal and can withstand tensions of 1 ton/cm, of belt width.
Patent GB-1003544-A (GB)
Title: An improved control mechanism for a traverse mechanism of a spinning or winding machine
IPC: D01H1/36
Filed: 1963-10-15
Abstract: 1,003,544. Spinning and winding apparatus. ALGEMENE KUNSTZIJDE UNIE N.V. Oct. 15, 1963 [Oct. 31,1962], No. 40729/63. Headings DID and D1J. In a control mechanism for the traversemechanism of a spinning or winding machine (e.g. a drawtwisting machine) of the kind when the stroke is controlled by limit-switches which are moved by a programming device to vary the length of position or both of the stroke, the movement of the programming device is controlled by the movement of the yarn. In the drawtwisting apparatus shown, the ring rail 1 is raised and lowered by a piston 3, the reversals of which are controlled by cams 6, 7 which engage limit switches 8, 9. These slide on a guide 12 under the control of cams 15, 16 operatively connected to draw-rollers 27 through worm-gearing 19, 20 and changewheels. Two or more limit switches 8, 9 may be provided at each end of the stroke, one of which may be selected in each case. The cams 15,16 may be adjustable on a common shaft and switches 28 may control a winding yarn on a waste spool before winding proper commences.
Patent GB-1056129-A (GB)
Title: Improvements in disc brakes
IPC: F16D55/224
Filed: 1964-03-16
Abstract: 1,056,129. Disc brakes. SOC. ANONYME ANDRE CITROEN. March 16, 1964 [March 19, 1963], No. 40742/66. Divided out of 1,056,128. Heading F2E. The subject-matter of the Specification is the same as that of the parent Specification, but the claims differ.
Patent GB-891495-A (GB)
Title: Improvements in or relating to glass
IPC: C03C10/00
Filed: 1958-12-17
Abstract: 891,495. Opaque glass. JAPAN, AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY, MINISTRY OF INTERNATIONAL TRADE & INDUSTRY. Dec. 17, 1958 [Dec. 27, 1957], No. 40760/58. Class 56. A radiation-sensitive material for use as a dosimeter consists of a continuous glassy phase obtained by fusing a mixture of the following composition in percentages by weight: P 2 O 5  60 to 76; Al 2 O 3  1 to 17;an oxide selected from BaO, MgO, CaO, SrO and ZnO 0.1 to 18; K 2 O or Ra 2 O 0.1 to 16 and, as the radiationsensitive component, Ag 2 O 4 to 6 of the other constituents, and a dispersed crystalline phase which is either formed from the same constituents as the continuous phase or is composed of SiO 2  or Al 2 O 3 , the particles of the dispersed phase having a maximum diameter of 50Á and constituting 15 to 35% by weight of the whole material. A number of examples of compositions are given. The production of the crystals is obtained either (1) with high Al 2 O 3 /P 2 O 5  ratio, i.e. more than about 7 % Al 2 O 3 , by cooling molten glass from the melting point of about 1100C.-1350C. or, with only small amounts of K 2 O and Na 2 O then holding the glass at a temperature between 700C.-1100C. in a semi-liquid state, or (2) with glasses containing less than 10% Al 2 O 3 , heating the glass with the crystals of SiO 2  or Al 2 O 3  to a temperature of 1100C.-1350C. whereat the SiO 2  or Al 2 O 3  crystals remain solid but the other constituents fuse.
Patent GB-956108-A (GB)
Title: A process for the production of polyurethane plastics
IPC: C08G18/79
Filed: 1962-10-29
Abstract: Non-porous, thermoplastic polyurethanes are prepared by reacting at a temperature of less than 100 DEG C. an organic compound containing active hydrogen atoms which are reactive towards isocyanate groups (the compound having a molecular weight of 500 to 3,000) and a chain extending agent free from amino groups with a diisocyanate mixture of a uretdione diisocyanate and at least 50% by weight (calculated on the weight of the mixture) of a monomeric organic diisocyanate, the mixture being used in quantity sufficient to react with substantially all the active hydrogen atoms present.  The organic compound may be a polyester, polyesteramide, polyhydric polyalkylene ether, polyhydric polythioether or polyacetal for the preparation of which many starting materials are listed.  Specified chain extending agents are water and glycols.  The storage-stable products may be compounded with fibres such as carbon black and silici acid aerogels and other additives such as stearic acid.  Lead ethyl-phenyldithio-carbamate may be added and the products cured by heating.  The products can be used for producing soles and heels for shoes, shock absorbers, ball joints, bearings, fibres, tubing, film sheets and coatings. Specification 798,209 is referred to.
Patent GB-921913-A (GB)
Title: Improvements in and relating to devices for provisionally retaining bearing needles for use in the manufacture and handling of needle bearings
IPC: F16C19/46
Filed: 1959-12-04
Abstract: 921,913. Roller bearings. A. PITNER, and SOC. ANON. DES ROULEMENTS A AIGUILLES. Dec. 4, 1959 [March 24, 1959], No. 41187/59. Class 12 (1). Needle bearings A are temporarily held in the outer race B during transport, manufacture, &c. by a sleeve 1 of sheet metal, cardboard, plastic, &c., having an internal projection such as a rib 2 or flange 4, or both for easy withdrawal of the sleeve. If the outer race is in the form of a closed cap C, the sleeve 1 is in the form of a closed cap which acts as apiston during its insertion to force grease from the end face of the bearing cap towards the needles.
Patent GB-1019964-A (GB)
Title: Method and apparatus for bending glass sheets
IPC: C03B23/027
Filed: 1962-11-01
Abstract: <PICT:1019964/C1/1> <PICT:1019964/C1/2> A method of bending glass sheets on a sectionalize outline type bending mould comprising spaced shaping rails having shaping surfaces adapted to support the marginal edge portions only of the bent sheet thereon and being tied together by bridging members extending across said mould beneath the glass sheet supported on said mould, and in which the mould and flat sheet to be bent supported thereon are passed through a heated atmosphere to raise the temperature of the sheet to the softening point of the glass, is characterized in that the bridging members are positioned below said shaping rails by a distance of at least 3 1/2 inches so that such bridging members do not effect any material absorption of heat directly from the glass sheet. A mould 11 for bending blank size glass sheets which are subsequently cut to outline comprises a centre section 13 and two end sections 14, 15 the shaping rails 23, 24, 25, 26 of which have bridging members 32 positioned below them by means of brace members 33.  A heat retaining member 30, provided to give an area of compression along the edge of the pattern cut sheet, is constructed in sections and carries three sections 38, 39, 40 of metallic screen 36, the two end sections of the heat retaining member 30 and metallic screen 39, 40 being pivotally mounted to two of the bridging members 32 by legs 42 and the centre section of the heat retaining member 30 and metallic screen 38 are mounted by four corners on posts 41.  Linkage arrangements 37, which permit the screen end sections 39, 40 to drop away from the under surface of the glass sheet when the mould 11 is in the open position, each comprises a link 45 attached at one end to one of the screen end sections 39, 40 and at the other end to a bar 43 pinned to a clevis 44 fixed to a transverse rail 27. Intermediate support members 28 are fixed to the inner end of the end sections 14, 15 and move with them, dropping as the mould 11 closes.