baber/WOPTO huggingface dataset:
Patent GB-1369832-A (GB)
Title: Carburetters
IPC: F02M7/11
Filed: 1971-12-16
Abstract: 1369832 Spray carburetters ZENITH  CARBURETTER CO Ltd 16 March 1973 [16 Dec 1971] 58494/71 Heading F1B A carburetter comprises an induction passage 11, a throttle valve 18, a fuel supply chamber 17 and a metering jet 15 through which fuel passes into the induction passage, passage means 19 for connecting a space above the fuel in the fuel supply chamber to the atmosphere through a restricted vent 33 and to a Source of suction through a flow restricting device 38, 39 and means responsive to atmospheric pressure to control the relative flow capacities of said restricted vent and said flow restricting device, wherein a valve 28 associated with the throttle valve 18 is arranged to open an unrestricted vent 32 connecting said  space to the atmosphere when the throttle valve is moved to the closed position. The passage 19 opens into the middle compartment 26 of a housing 22, divided by partitions 23 and 24. A valve member 28 is movable to seat against either partition and thus to connect the passage 19 either to the unrestricted vent 32 or to the chamber 27 having the restricted vent 33 and from which a passage leads to the device 34. This device consists of a body in which is formed a chamber 37 connected by a pipe to the mixing chamber 35 of the carburetter. Communication between the mixing chamber 35 and the space above the fuel in the chamber 17 is controlled by a valve member 39 and a seat 38. The position of the valve member 39 is dependent upon ambient atmospheric pressure, since the member 39 is connected by a stem to an aneroid capsule 44, which is situated in a chamber 43 vented to atmosphere and separated from the remainder of the interior of the body by a diaphragm 42. The valve 28 is mechanically connected to the throttle valve linkage 46 so that when the throttle valve is in the closed position the valve 28 seats on the partition 24 and when the throttle is opened the valve seats on the partition 23. The device may also be applied to a fixed choke carburetter, in which case the pipe leading from the chamber 37 to the carburetter is connected at the carburetter to the throat of the venturi.
Patent GB-1151470-A (GB)
Title: Process and Catalyst for the Polymerisation of Isoprene
IPC: C08F136/08
Filed: 1967-12-22
Abstract: 1,151,470. Polyisoprene. JAPAN SYNTHETIC RUBBER CO. Ltd. 22 Dec., 1967 [26 Dec., 1966], No. 58511/67. Heading C3P. Cis 1,4 isoprene is polymerized in hydrocarbon solvent using a catalyst obtained by mixing (A) a titanium tetrahalide, (B) a complex of boron trifluoride with a phenol and (C) a trialkylaluminium. The catalyst may be obtained by mixing (A) with a mixture of (B) and (C). Pre ferably the molar ratio of Ti to Al is from 1 : 0À5 to 1: 10 and for A1 to B, from 1: 3 to 1:15 and the catalyst may be prepared in the presence of isoprene in an amount of up to ten molar times the amount of titanium tetrahalide present. Preferred catalyst components are phenol, titanium tetrachloride and a trialkyl aluminium where the alkyl group contains from 1 to 8 carbon atoms. In the examples cis 1,4 isoprene is polymerized in n-hexane under nitrogen using a catalyst system comprising triethyl aluminium, a complex of boron trifluoride and phenol or m-cresol, and titanium tetrachloride. After reaction, the catalyst is deactivated using a mixture of methanol and 2,6-ditert-butyl phenol.
Patent GB-1459745-A (GB)
Title: Ingot moulds
IPC: B22D7/06
Filed: 1972-12-20
Abstract: 1459745 Composite ingot moulds BRITISH STEEL CORP 19 Dec 1973 [20 Dec 1972] 58801/72 Heading B3F When an ingot mould 1 is cast, bolts 7 are encast therein to extend from the outer surface for securing to the surface at least one member (a strap 3 of quenched and tempered, low-Ni steel) to provide reinforcement against the formation of fissures or the propagation of fissures formed after the securement. Fig. la shows a strap 3 to which bolts 7 had been secured by welds 8 before its insertion in a slot in two-part refractory mould prior to the pouring of molten cast iron into the mould to cast an ingot mould and embed the bolts as shown. Fig. 1b shows an ingot mould in which the bolts 7 have been encast before the strap 3 is fitted over the shanks 9 for holding tightly against the mould by welds 8.
Patent GB-1457266-A (GB)
Title: Yarn pulling device
IPC: B65H51/32
Filed: 1973-12-20
Abstract: 1457266 Variable speed friction gear RUTI. TE STRAKE BV 20 Dec 1973 [22 Dec 1972] 59070/73 Heading F2D [Also in Division D1] A yarn pulling device comprises a wide yarn receiving drum 3, and a narrow drive receiving ring 3a adjacent one edge of the drum 3 in engagement with a driving roller 1 having a progressively varying diameter. The drum is relatively adjustable with respect to the driving roller 1 so as to vary the drive ratio. The drum 3 can be axially adjustable in a housing which is spring-loaded towards the driving rollers. The axis of the drum 3 and driving roller 1 may be transverse to each other.
Patent GB-1206349-A (GB)
Title: Ventilating ceiling
IPC: F24F7/10
Filed: 1968-12-12
Abstract: 1,206,349. Ventilating buildings. SULZER BROS. Ltd. 12 Dec., 1968 [16 May, 1968], No. 59166/68. Heading F4V. A false ceiling for ventilating a room comprises one or more chambers each having a perforated bottom wall, the remaining walls of the chamber being formed by a flexible membrane. In the form shown, the bottom wall comprises panels 5 linked by flexible plastics strips 13 which permit the chamber to be rolled or folded for transport. The membrane 6 may be coated with soft plastics foam 15 as a thermal and sound insulation material. In another embodiment, the panels 5 are covered with sound damping mats and an air tight membrane, and the air outlets from the chamber are formed in the strips 13. The bottom wall of the chamber may be a corrugated plastics strip and the strip and membrane may be transparent. In a further embodiment, the chamber comprises a sac made of transparent or translucent foil which is supported by a perforated panel and is prevented from expanding upwardly towards lighting tubes.
Patent GB-1370990-A (GB)
Title: Air purification devices
IPC: B01D46/00
Filed: 1972-12-29
Abstract: 1370990 Air purifying system CENTRALSUG AB 29 Dec 1972 [30 Dec 1971] 60011/72 Headings B1L and BIT Air withdrawn from a refuse suction system is discharged through a duct which is bridged by a wall 2 having one or more apertures, with disposable coarse and fine particle filters 3, 5 upstream of each aperture and active carbon filters 11 downstream. As shown two carbon filters 11 are arranged one above the other, and each comprises a zig-zag array of flat, hollow, porous plates open at the top for feeding fresh carbon in and at the bottom for discharging spent carbon. Each plate comprises a plurality of flat-section tubes stuck together edgewise, and tubes in the upper and lower filters 11 are aligned. The lower end of the carbon filter assembly opens into valved discharged hopper 14, 15, which is kept filled, and the upper end is sealed to a plate 10 having slots aligned with the hollow plates. Plate 10 is kept covered with carbon, and the tops of plates (Fig. 4, not shown) are extended by impervious portions providing a greater height of carbon than the plate thickness. A vibrator 12 assists compacting and discharge of the carbon. Wall 2 is provided with a by-pass door 8, and the duct has access doors (Fig. 3, not shown) upstream and downstream of the filters. Particle filters 3, 5 are vertically stacked, and carbon filters 11 are reinforced by support bars 9. An air blower is arranged upstream or downstream. To save carbon when the plates are first filled, the lower part of hopper 14 may be filled with clay particles. When wall 2 has several apertures these may have individual closures so that their respective filters may be removed and filtering proceeds through the others.
Patent GB-1405450-A (GB)
Title: Pulse generating circuit
IPC: G06F1/24
Filed: 1972-12-29
Abstract: 1405450 Delayed pulse generating circuits HITACHI Ltd 29 Dec 1972 [29 Dec 1971] 60029/72 Heading H3T A circuit for producing a delayed pulse following operation of a switching device SW2 comprises two switching elements T2, T3 connected, together at an output electrode, one device being connected to an output terminal, two time constant circuits connected to the input electrodes of respective switching elements and to the switching device such that on operation of the device one element is in one switching state for a predetermined time and the other is in the other switching state for a predetermined longer time whereby a pulse is produced while both are in the other state. Thus, in Fig. 2, after a delay, the output goes to zero when T2 becomes conducting and goes high again when T3 goes off. In the parallel arrangement of Fig. 6 the output goes high when T3 goes off and returns to zero when T2 goes on. The bipolar transistors may be replaced by field effect transistors or thyristors and the circuit may be used to provide automatic clear in a portable electronic calculator.
Patent GB-1325916-A (GB)
Title: Method and apparatus for producing foamed materials
IPC: C08J9/12
Filed: 1970-12-21
Abstract: 1325916 Bituminous composition MOBIL OIL CORP 21 Dec 1970 [20 Jan 1970] 60448/70 Heading C3N [Also in Divisions B1 B2 C5 and EI]  Bitumen is foamed by means of steam to enable it to be mixed more readily with soil to consolidate the soil. The foam is produced by mixing water with the molten bitumen under pressure and then releasing the pressure so that the water vaporizes. Examples of mixtures are given containing 2À8, 3À5 and 3À8% bitumen. The bitumen described is of 90 penetration quality. The soil is preferably treated when at its fluff point, i.e. at the moisture content which corresponds to the lowest density.
Patent GB-1214570-A (GB)
Title: Improvements in or relating to apparatus for controlling the number of copies produced by a duplicator
IPC: B41L19/00
Filed: 1968-10-07
Abstract: 1,214,570. Printing apparatus. A. B. DICK CO. 7 Oct., 1968 [19 Oct., 1967], No. 60599/69. Divided out of 1,214,568. Heading B6C. A master sheet or printing plate 14 fed into duplicator or printing press 12 carries a coded number expressing the number of copies which are to be printed from it. The code is converted to a signal before printing begins, and comparator 22 compares the signal, which is held in memory 20, with the output of copy counter 24. When the correct number of copies has been printed, the comparator 12 produces a further signal which stops the duplicator or printing press 12. Preferably the coded number on the master sheet or printing plate 14 is expressed in binary form.
Patent GB-1261720-A (GB)
Title: Motion picture projector
Inventor: PICKENS GERALD FRANCIS
IPC: G03B1/50
Filed: 1968-12-20
Abstract: 1,261,720. Projector for both regular and super 8 film. EASTMAN KODAK CO. Dec. 20, 1968 [Dec.26, 1967(2)], No.60667/68. Heading G2E. A projector is adapted for showing films of the same width but with different frame size and proportions e. g. regular and super 8 films, by the provision of a laterally moveable film gate which positions the film for engagement by the film feeding means simultaneously with a change in the projection aperture on manual operation of a lever. The optical axis of the system passes through an aperture 16 in a pull-down mechanism 14 having claws 13 spaced apart by a distance equal to 9 perforations in the regular 8 film and 8 perforations in the super 8. The claws 13 pass through slots in mounting plate 11 and adjustable framing plate F before passing through slots 55 in the film gate G. An operating lever L is slidably attached between the frame plate F and the gate G so that on movement vertically a projecting pin 53 engaged in a diagonal slot 54 in the gate G moves the gate horizontally to position the film perforations correctly in relation to the claws 13. Simultaneously a notch 51 in member 41 of the lever L in which a U-shaped spring arm 52 on an aperture mask A having apertures 33 and 34 is engaged, rotates the mask A about pivot 31 to position the appropriate aperture in the beam. In a second embodiment Fig. 5 (not shown) the apertures are vertically disposed in the guide G which may be displaced both horizontally and vertically by a lever rigidly attached to it and the apertive mask A is dispensed with. Reference has been directed by the Comptroller to Specification 1,165,952.
Patent GB-1240850-A (GB)
Title: Driving system for an electrically powered vehicle
Inventor: NORDIN TORE
IPC: B60L3/10
Filed: 1968-12-23
Abstract: 1,240,850. Control of D.C. motors ALLMANNA SVENSKA ELEKTRISKA A.B. 23 Dec., 1968 [27 Dec., 1967], No. 60981/68. Heading H2J. Separately-excited traction motors 4 are supplied from a variable transformer 1 through diodes 2, the field windings 8 being connected through reversing switches 9 to controlled current sources 11. The latter each receive a control signal from a manual setting member 17. Signals representing the armature currents are derived from resistors 6 and applied to a unit 12 which selects the highest signal. Units 14 compare the selected signal with each armature current signal, and the deviation signals are transmitted through limiters 15 to the controlled sources 11. The signals derived through the limiters 15 tend to reduce the excitation of the associated motors. In this manner, the excitation of the least loaded motors is reduced so that the armature currents are equalized. If one of the motors starts to slip, its field reduction is limited by the unit 15 whose effect is adjustable by a member 16 which may be linked with the control member 17.
Patent GB-1280837-A (GB)
Title: Apparatus for carrying persons
Inventor: BRACQ ETIENNE JOSEPH JEAN MICH
IPC: A61G7/10
Filed: 1969-12-19
Abstract: 1280837 Invalid-lifting trolleys E J J M BRACQ 19 Dec 1969 [20 Dec 1968] 62002/69 Addition to 1193536 Heading B8H The invalid-lifting trolley disclosed in the parent Specification is modified in that the invalid-supporting frame 2 is connected to the base frame 1 by pivoted arm assemblies 48, 49. Hydraulic rams 51, 53 are pivoted between the base frame and the arm assemblies and are controllable to raise and lower, to move horizontally and to tilt the frame 2.
Patent GB-1298570-A (GB)
Title: Building structure and method of manufacture
Inventor: RICHARDS REYNALD BADDELEY
IPC: E04B1/14
Filed: 1969-12-23
Abstract: 1298570 Moulding room units R B RICHARDS 23 Dec 1969 [30 Dec 1968 8 April 1969] 62517/69 Heading B5A [Also in Division E1] A portable dwelling unit comprising ceiling, floor, side walls and end walls which may have door and window openings, is moulded by sequentially applying to successive upper faces of an intermittently rotated former 16, a coating of release agent, a coating of resin on to which glass fibre is applied and the resin worked thereinto by a segmented roller, thermally insulating cellular material to bond to the resin, further resin into which glass fibre is worked and, after the resin has set, collapsing the former 16 for removal of the tubular moulded structure to which the end walls are fitted. The former 16 comprises sections 18, 19 which are connected to a section 17 by hinges 20 permitting their inward collapse after sequential removal of links 21, 22, connecting to a supporting frame 5 which is supported at a pivot 2 on a triangulated support frame 3 attached to legs 4, and at one end at a pivot 12 on a supporting frame 13 which is removable to permit axial removal of the dwelling from the collapsed former 16 by an overhead crane. The frame 5 is rotated by engagement of a toothed ring 8 thereof by a gear 9 driven from a motor 10, and is stabilized by the engagement of guide pulleys 7, supported by the logs 4, within a frame ring 6. The thermally insulating cellular material may be impregnated with preservative against insect or mould attack and may comprise corrugated cardboard wound on to the former with simultaneous application of resin, or preformed bats of foamed plastics which may be semi-rigid, or if rigid are configured to rounded comers of the dwelling by bending whilst hot about "V" notches provided in the interior bend surface of the bat. Gaps may be left between or slots may be cut into the thermally insulating material to provide strengthening anchors of the glass fibre resin or inter-connection between the inner and outer layers thereof. The dwelling unit is preferably moulded with outwardly bowed walls, corrugations may be moulded into the roof or at the corners thereof to serve for water drainage. Windows and doors may cut into the moulded unit but preferably are moulded into tubular structure. Both end walls may have the windows and doors, or preferably as one end wall may be blank and the other may have a window, door, and an air conditioning unit. Windows, electrical wiring or plumbing fittings may be located on the former, or otherwise incorporated during the moulding. Bearers may be moulded into the insulating material of the floor of the unit for subsequent seating on a foundation frame of steel, or concrete, or blocks. A plurality of units may be assembled side by side, end to end, or vertically. The unit may subsequently be fitted with internal partitions, either of similar construction or of thin panel board or plywood.
Patent GB-638277-A (GB)
Abstract: 638,277. Clips. AEROLEX, Ltd., and HARLEY, F. B. Dec. 12, 1946, No. 36719. [Class 44] A buckle-like clip for a belt or strap comprises a frame 1 and two components 4, 5 pivoted thereto and having belt engaging surfaces which are continuous and parallel with the pivotal axes, one surface 8 being disposed to move on pivotal movement of the two components into or out of a recess 9 in the other surface. A pull on the belt 10 in the direction of the arrow will cause the members 4, 5 to turn about their pivots so as to separate the engaging surfaces and free the belt, while a pull in the opposite direction causes the belt to be gripped. The members 4, 5 may be spring-biassed; as shown, member 4 is urged by a spring 15 to gripping position, while member 5 is biassed to the open position by a light spring 16. Member 4 has an operating thumb plate 18. Fig. 4 shows an application in which a vertical strap 21, broken at A for the insertion of a clip as described, to tension the strap, has secured thereto by clamping means a number of clips 22 through which pass straps 28 supporting stretcher poles 29. The clips 22 are as above described, with the addition of clamping plates 26 tightened on the strap 21 by screws 25.
Patent GB-2024118-A (GB)
Title: A puncture resistant pneumatic tyre
IPC: B60C19/12
Filed: 1978-07-03
Abstract: A puncture resistant pneumatic tyre includes a casing 70 and an inner tube 75 or a base ring of foam rubber (46) (Figure 3 not shown), where the side walls of the casing flex under load, in combination with an elastomeric shield 72 (or 55). The outer surface of the elastomeric shield is contoured to mate with the inside surface of the casing and the inner surface of the shield may be shaped as at 77, 772 or 773. The shield withstands the flexing at the flex zone of the casing by having its edges tapered and that portion where it overlies the tread portion of the tyre creates a massive puncture resistant portion over the tyre thread. The tyre may also be provided with a removable steel belt 80, and instead of being an endless ring the shield may comprise three arcuate segments. <IMAGE>
Patent GB-2001107-A (GB)
Title: A drum type machine for washing laundry
IPC: D06F37/00
Filed: 1978-07-05
Abstract: The invention relates to a horizontal drum laundry washing machine and seeks to provide an improved bearing arrangement for the drum which reduces the effects of frictional wear and corrosion on the bearings. According to the invention the bearing arrangement on at least the drive side of the laundry drum (2) comprises the rotary shaft (6) of the laundry drum and the fixed bearing (16) for it, which operate without lubricant and which are made of a material which resists the corrosive effect of the washing liquid; as well as a sealing gland (20) which is fitted on the outside of the tank (5) of the machine between the fixed bearing (16) and the rotary shaft (16). The bearing (16) is force fitted into a resilient ring (12). The gland (20) has a resilient part (21) fixed to a drive pulley (7) and a graphite rubbing end (22) pressed against the bearing (16). <IMAGE>
Patent GB-2001233-A (GB)
Title: Preparing mixtures containing ammonium lactate
IPC: A23K50/15
Filed: 1978-07-07
Abstract: A process for preparing mixtures containing ammonium lactate from aqueous milk processing residues or mixtures containing lactic acid and/or lactose and lactic acid formers, e.g. lactic acid whey, sweet whey buttermilk, comprises adding, to the processing residues or mixtures, ammonia at a rate such that pH is kept below 6.0 and, after the desired amount of ammonium lactate has been formed, adding ammonia to the mixture to give a pH of not greater than 6.5. The process has low production costs and produces high yields. The product of the process is used as an animal feedstuff or a constituent in an animal feedstuff composition. Lactic and fermentation of lactose present may be effected during ammonia treatment.
Patent GB-2001147-A (GB)
Title: Improvements in or relating to welding together female and male tube sections
IPC: B29C65/20
Filed: 1978-07-13
Abstract: A method and device are disclosed for welding to together a female tube section 8 and a male tube section 5. The male and female sections are held by means of respective retaining devices 3, 4 and heating elements 6, 12 heat the surfaces 7 and 11 of the sections to a welding temperature before insertion of the male section into the female section. The retaining device 4 holds a retaining mandrel 9 inserted into the female section 8 and of the same external diameter as the male section 5 such that the retaining device 4 can be substantially the same as the device 3. <IMAGE>
Patent GB-2004885-A (GB)
Title: Indolopyrones
IPC: C07D491/153
Filed: 1978-09-28
Abstract: The present invention provides compounds of the general formula:-   <IMAGE> wherein R1 and R2, which may be the same or different, are hydrogen or halogen atoms, hydroxy or nitro groups, alkyl or alkoxy radicals containing up to 6 carbon atoms or trifluoromethyl radicals or R1 and R2 together represent a methylenedioxy radical, R3 is a hydrogen atom, an alkyl radical containing up to 6 carbon atoms or an aryl or substituted aryl radical and R4 is a carboxamido, cyano or tetrazolyl radical; and the pharmaceutically acceptable organic and inorganic salts thereof. The present invention also provides a process for preparing these compounds, as well as pharmaceutical compositions containing them.
Patent GB-2031856-A (GB)
Title: Safety closure
IPC: B65D50/04
Filed: 1978-10-05
Abstract: There is disclosed a container and a cap therefor, wherein the container has a screw-threaded neck and the cap has a skirt 5 which is sufficiently deformable to place normally engageable elements on the container and cap out of engagement with each other, thereby allowing the cap to be removed from the container; in which the deformation of the skirt of the cap is resisted until a band 20, removably attached to the lower end of the skirt 5, has been removed therefrom. <IMAGE>