baber/WOPTO huggingface dataset:
Patent GB-1259101-A (GB)
IPC: G03G15/26
Filed: 1968-01-04
Abstract: 1,259,101. Electro-photographic processes. CAPS RESEARCH Ltd. Jan. 2, 1969 [Jan. 4, 1968], No. 592/68. Heading G2H. An electro-photographic process for producing a negative image of an optical image of an object projected on to a charged surface of an electrophotographic material comprises conveying the material through developing means including toner particles of the same polarity as the charge on the surface and arranging during the passage of the material through the developing means an electrically conductive element 23 in parallel, facing relationship to the surface, the element being spaced from the surface by an amount which is arranged in relation to the electrical potential of the element so as to be small enough to increase the repulsive forces exerted on the toner particles at areas of the surface corresponding to background areas of the object but not small enough for toner particles to be repelled from areas of the surface corresponding to faint lines or narrow areas of the object which differ only slightly in density from the background areas. The electrical potential of the element may be allowed to float so as to vary in accordance with the charge induced on the electrophotographic material, or it may be fixed at a predetermined value, e. g. earth potential. The spacing between the surface and the element is between # inch and 1 inch. A sheet of electrophotographic material is fed by a conveyer 7 and guide sheet 39 into a liquid development tray 15, liquid being fed to the tray by a pump from a supply tank 31. The conductive element 23 is formed as a trough having a developer inlet pipe 25, filter 29 and a series of outlet apertures 27. A series of mutually spaced parallel arranged guides 19 are coaxially disposed with respect to the element 23 in the tray 15 and guide the sheets from the belt 7, through the developer, and to a roller conveying means 41 for subsequent feeding through a drying station.
Patent GB-1264711-A (GB)
IPC: A61M5/168
Filed: 1969-04-22
Abstract: 1,264,711. Drainage detection and measuring apparatus. BRYSTON MFG. Ltd. 22 April, 1969 [3 May, 1968], No. 20570/69. Heading A5R. [Also in Divisions G1 and G3] A drip detector for detecting discharge from a bladder drainage tube or in intravenous feeding comprises the drainage tube 1, a light source L2 directed across a glass tube 7 to a light sensitive cell PC, the arrangement being such that drips from the tube 1 pass between the light source and cell and into a collecting bottle 3. The output from the cell, modulated by the drips passes to a timer unit 23 wherein the presence of a drip, as detected by a reduction in the amount of light received by the cell, initiates an electronic timing circuit to time a preselected period. Each drip causes the reset of the circuit, and should the drips cease the circuit will complete its timing period and an alarm lamp will be lit. The lamp may be put out, and timer reset by a switch. The alarm lamp may indicate a blockage of the drainage tube, or the blockage or cessation of an irrigation system for the bladder. A container may be used instead of the bottle 3 for measuring the liquid flow, and comprises the container 109 connected to a resilient tube 107 which receives the liquid, a liquid level detector mounted on the container including a light source 111 and a light sensitive cell 113, a rocker lever 115 which has two positions, one as shown in which the liquid is retained in the container and tube 107, and a second in which the liquid is released to a collecting bottle 3 and the top of tube 107 is closed. When the liquid in the container 109 reaches a predetermined level, a float 131 interrupts the light beam from source 111 and the change in photocell output causes the rocker to move to its second position via a solenoid and central circuit. A pen records this event on a moving paper roll. After a suitable time for drainage, the rocker returns to its original position. The paper roll provides a record of both the amount of liquid collected and the time of collection. After a predetermined number of collections, a full bottle alarm may be given.
Patent GB-1266547-A (GB)
IPC: B65D5/14
Filed: 1969-05-29
Abstract: 1,266,547. End plates for containers. KALLE A.G. 29 May, 1969 [30 May, 1968], No. 27207/69. Heading B8C. An integrally moulded, rectangular, end plate 1, for supporting one projecting end of a core of a roll of wound material when the roll is accommodated in a container 10, is provided, between an inner hub portion 3 for reception of the core end and an outer rim 4 for stitching, or stapling 11, to the container 10, with a radially corrugated web portion having, in the comers, depressions 8 which are each dimensioned to penetrate between the periphery of the roll and the adjacent sides of the shell. The depressions also enable additional stitching or stapling at the corners between the rim 4 and the container 10. The plate 1 is made of deep drawable plastics material, the rim 4, which may be tapered toward one, or both sides, having lugs 5 and preferably a flange 6 with teeth to engage the outside of the container. The latter is made of a single folded sheet, which is united along its abutting edges by an adhesive tape 12. The hub 3 is preferably an open cylinder closed by a disc suitable for identification purposes, and for large rolls, the depth of the depressions, may exceed the rim width.
Patent GB-1288171-A (GB)
IPC: F16L58/02
Filed: 1971-04-30
Abstract: 1288171 Coating pipes SEA & LAND PIPELINES Ltd 30 April 1971 12408/71 Heading B2L A method of coating a pipe comprises spreading a deposit 3a of coating material between spaced bands 2 by means of a roller 4 using the bands as thickness gauges. The bands are removed after coating and more coating material is spread into the spaces left thereby using the applied areas of coating as a thickness gauge. The coating material may be an epoxy resin and the bands may be provided with releasable fastenings to facilitate removal.
Patent GB-1288550-A (GB)
IPC: F42B5/18
Filed: 1970-12-31
Abstract: 1288550 Cartridges DOW CORNING CORP 31 Dec 1970 [17 April 1970] 62004/70 Heading F3A A cartridge comprises a combustible cartridge case 14 containing a propellant 31, and a coupling ring 21 for threadedly engaging a collar 17 and a projectile 25. A diaphragm 45 enables the cartridge to be stored safely without the projectile. The propellant 31 may be granular, moulded or contained in a sack. The cartridge case 14 is formed of moulded propellant bound with a nitrocellulose binder. The ring 17 and collar 21 are formed of steel or brass. To enable the collar to be inserted into the mouth of the cartridge case, the collar is made of flexible material, and, if desired, a slit is provided to make it even more flexible. Alternatively, diametral sides of the collar are truncated and the mouth of the cartridge case is provided with corresponding grooves so that the collar can be inserted edgeways. The cartridge and a method of assembling the cartridge is claimed.
Patent GB-1288763-A (GB)
IPC: A47L11/30
Filed: 1968-10-26
Abstract: 1288763 Cleaning floors, walls, windows, &c J WATERS 22 Oct 1969 [26 Oct 1968 13 Jan 1969 9 May 1969 19 May 1969] 50902/68 Heading A4F A surface treating apparatus particularly for cleaning floors, walls, windows, carpets, and upholstery comprises a main housing 1, 6, Fig. 1, containing a motor driven air suction unit 7, the exhaust air from which operates a system for transferring cleaning liquid from a reservoir 4 within the housing 1 to a surface to be cleaned either through a cleaning head 24, Figs. 2 to 4 (not shown) or through delivery means adjacent thereto, the cleaning head (24) being in communication with the suction side of the suction unit 7 so that used cleaning liquid is withdrawn through the head into a separator tank 5, or into the reservoir 4, the tank 5 then being omitted. The exhaust air is supplied to the reservoir 4 via a cowling 8 and a resilient tube 15 containing a flat stretching element 17 functioning as a oneway valve. Cleaning liquid is thus forced by airpressure from the reservoir 4 through conduits 37, 34, and a control valve 31, Fig.2 (not shown) to be delivered through nozzles (26) mounted on the cleaning head or through perforations in a tube 52, Fig. 5 (not shown) surrounding the mouth of the head. The pressure applied by the exhaust air may be regulated by adjustment of a butterfly valve 39 controlling an air-flow to the atmosphere from the cowling 8. A switch 43 operated by a float 57 in the tank 5 actuates an alarm device and/or de-energizes the suction unit 7 when the used liquid in the tank 5 reaches a predetermined level. If during operation of the apparatus the pressure within the tank 5 falls below a predetermined value a valve 46 opens to admit air into the tank so that the suction applied to the cleaning head is not such that its manipulation is difficult. A filter bag impregnated with anti-foaming agent may be provided in the tank 5.
Patent GB-1289892-A (GB)
IPC: G01L19/08
Filed: 1970-06-02
Abstract: 1289892 Measuring liquid level electrically P V HEERDEN 2 June 1970 26580/70 Heading G1N Apparatus for recording pressure changes, for example caused by liquid level changes, comprises a pressure sensitive vessel 5 communicating with a well type mercury monometer 7 whose level is sensed by probe 9 carrying electrodes 10, 11 in the circuit of an electric motor M, Fig.4, which moves the probe to a position corresponding to the liquid level and controls a punching system for recording this position on paper tape. A clockwork mechanism controls the taking of readings at predetermined intervals by periodically closing the switch SW. 1. In the interim periods (SW. 1 open) the probe is held clear of the mercury level, for if a probe 10 or 11 touches the mercury transistors TR1, TR2, (otherwise non conducting) conduct energizing the motor M to raise the probe. With SW.1 "on", transistors TR3, TR4 conduct energizing the motor to lower the probe until electrode 11 contacts the surface. A balanced situation arises then between the upper and lower halves of the circuit and the motor is de-energized. At this point in time the punched tape recording is made. Should the mercury rise with SW1 closed, electrode 10 is engaged and resistor 18 is bypassed, thereby unbalancing the circuit and causing the motor to raise the probe to effect balance again.
Patent GB-1295476-A (GB)
IPC: C07C2/34
Filed: 1969-12-24
Abstract: 1295476 Dimerizing olefins SOC NATIONALE DES PETROLES D'AQUITAINE 24 Dec 1969 [27 Dec 1968 10 Dec 1969] 62877/69 Heading C5E [Also in Division B1] Olefins, particularly C 2 -C 4  alpha-olefins, are dimerized or codimerized by contacting them, in solution in an inert solvent, with a catalyst system comprising a mixture of (i) a complex of formula [Ni(R 2 SO) 6 ]<SP>2+</SP>[MX 4 ]<SP>2-</SP> wherein: the organic sulphoxide contains 2 to 20 carbon atoms and R is alkyl or aryl or the two R groups together form a polymethylene chain; M is a metal of Group VIII; and X is halogen; with (ii) an organoaluminium compound, in specified quantities (see Division B1). The dimerization is carried out at -50 to +80C., in the presence of 0 to 2 moles of water per mole of nickel complex. The inert solvent used, which is suitably a halogenated aromatic hydrocarbon, may contain a protective olefin which is the dimer or co-dimer to be obtained. The examples relate to the conversion of (i) propylene at 0 C. to methyl pentenes (especially 2-methyl-pentene-2), hexenes and dimethyl butenes, (ii) ethyiene at 0 C. to C 4 , C 6  and C 8  olefins, and (iii) but-1-ene to octenes.
Patent GB-1297140-A (GB)
IPC: C01F7/428
Filed: 1969-07-18
Abstract: 1297140 Alkaline earth metal zeolites BRITISH PETROLEUM CO Ltd 8 June 1970 [18 July 1969] 36329/69 Heading C1A Alkaline earth metal zeolites are prepared by hydrothermal treatment of an aqueous mixture of an alkaline earth metal oxide or hydroxide, silica and an alumina hydrate formed by hydrolysis of an aluminium-containing material and added to the mixture without drying. The mixture may have a composition in the ranges: Alkaline earth metal oxide/SiO 2  = 0À10 to 0À40 SiO 2 /Al 2 O 3  = 6À0 to 11À0 H 2 O/alkaline earth metal oxide #150. The alumina hydrate may be pseudo-boehmite or bayerite. The aluminium-containing material may be the metal; a salt, such as the chloride; amalgamated Al; or an Al alkoxide, such as Al isopropoxide and the hydrolysis may be carried at temperatures from below 0 to 100 C. using acid, neutral or alkaline conditions. The zeolite may be ion-exchanged to add a platinum group metal, such as Pt or Pd. Al 2 O 3  may be prepared by immersing amalgamated Al in deionized water or hydrogen peroxide.
Patent GB-1306814-A (GB)
Title: Process for the production of porous sheets
IPC: D06N3/18
Filed: 1970-02-19
Abstract: 1306814 Laminated products BAYER AG 19 Feb 1970 [21 Feb 1969] 7982/70 Heading B5N [Also in Division C3] A synthetic leather comprises a porous sheet bonded on to a textile support. The porous sheet is made from an optionally porous, thermoplastic synthetic resin in the form of a powder having an average particle size of from 0À05 to 0À1 mm. by addition thereof to an aqueous dispersion or a solution in an organic solvent of a film-forming cross-linkable, synthetic resin, the film-forming resin, if it melts at all, melting at a temperature at least 50 C. above the melting point of the thermoplastic resin, the thermoplastic resin being added in a quantity of from 5 to 50% by weight, based on the solids content of the dispersion or solution, and the organic solvent or the water of the aq. dispersion being a non-solvent for the thermoplastic resin; the resulting mixture is formed into a sheet; and the sheet is subsequently heated to a temperature of from 80. to 180 C., the organic solvent or water being removed by evaporation. In the examples the textile supports were a roughened and shorn cotton velour fabric, a knitted polyamide velour fabric, a stable fibre fleece consisting of a mixture of fibres of polyamide, regenerated cellulose and polyacrylonitrile, and a spinning fleece of polyamide respectively. The thermoplastic resin may be a polyurethane, polyolefine, polyamide or a partially saponified ethylene/vinyl acetate copolymer. The crosslinkable resin may be a polyurethane, polyamide or a polyacrylate.
Patent GB-1313225-A (GB)
Title: Method of and plant having apparatus for determining the condition  of treatment liquids in treatment baths
IPC: G01N27/416
Filed: 1970-08-22
Abstract: 1313225 Analysis of dyebath liquid WIRA 20 Sept 1971 [22 Aug 1970] 40513/70 Heading B1X A method of determining the condition of liquid in each of a number of liquid treatment baths comprises leading a sample of liquid from each bath through small bore tubing to a remote location and presenting the samples in turn to an instrument and determining, using the instrument, the condition of the samples and hence the condition of the liquids in the treatment baths. ("Small bore" is defined as 0.04 to 0.25 cm.). The process is applicable to the control of dyeing in a recirculatory dyeing plant. The characteristic determined may be pH, colour or concentration and the results may be used to vary the said characteristic in the baths to keep it within prescribed limits.
Patent GB-1313291-A (GB)
Title: High-voltage switchgear including a circuit-breaker of the horizontal  drawout type
IPC: H02B11/167
Filed: 1969-02-14
Abstract: 1313291 Switchgear structures A REYROLLE & CO Ltd 13 May 1970 [14 Feb 1969] 8167/69 Heading H1N A polyphase switchgear panel has a circuitbreaker which comprises three interrupter units 20 mounted in a vertical row on a movable carriage 33 horizontally withdrawable from the front of the panel, the line side terminals of the units 20 engaging cable connector terminals 15A ... 15C at the rear of the panel. A polyphase bus-bar chamber 11 extends at the top or bottom of the panel and is provided with forwardly facing insulating orifices 27 containing bus-bar terminals. The units 20 may be vacuum, gas-filled or small-oil-volume interrupter units and are carried in an insulating casing 18. Conductor bars 21A ... 21C interconnecting interrupter terminals 22 with terminals in insulating plugs 24 are moulded in insulation integral with the front wall of the casing 18. Current transformers 50, a voltage transformer 58, earthing switch 55, 56 and shutters, e.g. 37, may be provided. Fig. 5 (not shown) illustrates a duplicate bus-bar arrangement in which bus-bar chambers are provided at top and bottom of the panel. In this arrangement a change of bus-bar selection is performed by withdrawing the circuit-breaker, reversing it end-to-end and re-engaging it in the panel.
Patent GB-1316089-A (GB)
Title: Conveyor systems
IPC: A01D87/02
Filed: 1969-08-07
Abstract: 1316089 Passenger conveyers DUNLOP HOLDINGS Ltd 5 Aug 1970 [7 Aug 1969] 39511/69 Heading B8A A comb for a longitudinally grooved conveyer of the continuous belt or multi-platform type, comprising a rigid transverse support member 3 and a plurality of rigid tooth members 1,2, etc., resiliently mounted on the support member to allow the tooth members to move to accommodate conveyer movement in the direction transverse to the longitudinal direction of the belt. The tooth members 1, 2 are detachably mounted on the support member 3. Each tooth member is mounted by an open-ended slot in the rear face of the member to accommodate the support member 3, and is retained by bolt means 18. Inter tooth spacing is achieved by rubber spacer members between the tooth members. Clearances (14) (Fig. 2, not shown), are provided at either side of the support member between the said support member and the slot, in which rubber spacer members are fitted to allow tooth member movement. Rubber members (15) (Fig. 3, not shown), may also be fitted above and below the member 3. If the combs are obstructed by a foreign body, the support 3 is tilted about pivots 11 to operate a microswitch 13 and so stop the conveyer.
Patent GB-1329862-A (GB)
Title: Acoustic attenuator
IPC: F24F13/24
Filed: 1970-09-22
Abstract: 1329862 Silencing gaseous flow SOUND ATTENUATORS Ltd 21 Sept 1971 [22 Sept 1970] 45040/70 Heading FIB [Also in Division F4] The slats 2 supported in the frame 1 of a sound attenuator for an air duct, e.g. for use in an air inlet or outlet of a building wall each comprise a hollow member containing sound-absorbing material 4, e.g. glass or mineral fibres or expanded plastics. A major part of the surfaces of each slat 2 visible from one open side of the frame 1 are perforated and the surfaces visible from the other open side are unperforated. Each slat 2 includes a rectangular strip 6 in a plane parallel or substantially parallel to the other open side and the shape of the slats is such that the air passage between any two adjacent slats defines a venture throat X. The visible unperforated surfaces may be covered with or formed of decorative material 8, e.g. aluminium, bronze or stainless steel. Dimensions of an attenuator are given in the Specification.
Patent GB-1337958-A (GB)
Title: Shelf supports
IPC: A47B57/54
Filed: 1970-06-22
Abstract: 1337958 Shelving C G REED 16 June 1971 [22 June 19701 30140/70 Heading A4B A shelf support bracket or beam 9 is supported at one or both ends by an upright 1 having at least one channel shaped portion 3 or 4, the beam 9 having a flanged end 10 defining a channel which embraces the channel shaped portion 3, the flanged end being releasably engaged with a wedge shaped element 5 adjustably positioned along the length of and within the channel shaped portion 3. A tongue 11 on the end 10 engages in a slot 12 in the upwardly tapering wedge element 5. The element 5 and end 10 are clamped on to the upright 1 by a wedging action due to inter-engagement either of correspondingly inclined surfaces 14, 13 of the end 10 and element 5 respectively or of inclined surfaces at the end of the tongue 11 and at the bottom of the slot 12. Depressions 7 (or protrusions) in the element 5 are urged into engagement with protrusions 8 (or depressions) on the upright 1 by a leaf spring, rubber strip or foam plastics strip 6 carried by the element 5. A further beam 9 may be secured to the other channel shaped portion 4.
Patent GB-1339333-A (GB)
Title: Device for the hydrostatic supporting of machine parts
IPC: F16C32/06
Filed: 1971-11-17
Abstract: 1339333 Hydrostatic bearings; valves C VOGEL [trading as WILLY VOGEL] 17 Nov 1971 [17 Nov 1970] 53277/71 Headings F2A and F2V A fluid bearing is provided with a pressure fluid supply system which controls the pressure of the supply in response to the forces which occur in the bearing. The fluid is fed by a pump 13 to a multi-circuit distributer pump 16 which supplies fluid pressure pockets 18-21 in the bearing. A differential pressure valve is provided which maintains the pressure of fluid fed to the distributer pump constant by allowing excess pressure fluid to overflow, while the valve operates to increase the pressure of fluid fed to the distributer pump, by preventing overflow, when the pressure in the bearing, caused e.g. by displacement of the parts, increases. A filter 14 and a pressure limiting valve 26 may be provided in the fluid supply line. The pressure differential valve is provided in parallel with the supply to one of the bearing pockets, one side of the valve being connected to the output line of the supply pump and the other side to one of the distributer pump circuits. The valve consists of a housing 32 having inserts 33, 34 screwed into chambers 35, 36 and which form guides for valve members 38, 40 to which are connected pressure pieces 41, 42. A bore 43 is provided in one of the pressure pieces 41 in which slides a pin 44 integral with the other pressure piece 42. Springs 46, 47 urge the pressure pieces against stops formed by the end surfaces of the inserts 33 and 24. An inlet 49 is connected via a line 24 to the output of the supply pump. When the pressure exceeds the predetermined value, the valve member 40 is raised and fluid overflows through passages 50. 51. Another inlet 52 to the valve is connected to the line supplying a pocket 18. If the pressure in the line rises, valve member 38 is depressed against spring 46 causing the pressure pieces to engage and depress the valve member 40 thereby closing the overflow passages so as to increase the pressure of fluid supplied to the distributer pump.
Patent GB-1340389-A (GB)
Title: Handle
IPC: B25G1/10
Filed: 1972-05-19
Abstract: 1340389 Pen holder G FAIRBAIRN 19 May 1972 [19 May 1971] 15741/71 Heading B6P [Also in Division B4] A handle for an instrument such as a pen pencil, glasscutter, engraving tool or other scribing tool has a palm abutting surface, a thumb receiving recess 2 and at least two finger-receiving recesses 3, 4 and means for mounting the instrument in the handle so that its operative end protrudes from the handle in a direction away from the palm-abutting surface. As shown a ball point pen 5, 6 is mounted in a hole 7 provided in a spigot 8 extending from the handle.
Patent GB-1344940-A (GB)
Title: Louver
IPC: E04B9/34
Filed: 1972-03-24
Abstract: 1344940 Screens THORN ELECTRICAL INDUSTRIES Ltd 24 March 1972 13968/72 Heading E1J [Also in Division F4] A grille comprises hollow cylinders secured side by side by clips 15 having portions in the cylinders and portions between the cylinders. Clips 15 comprise U-shaped spacers 20 rivetted to U-shaped portions 21 with bowed legs and shoulders 23 engaging under rims 12 of the cylinders. Clips (30, Figs. 3, 4, not shown) comprise cruciform members (32) with spacer legs (31) and barbed hooks (37). Clips (30) may join adjacent screens at their corners. The screen is fixed vertically or suspended horizontally from clip (30) or a strap (44, Fig. 1, not shown). The screen covers a window or each cylinder may enclose a light bulb. (For Figure see next page)