baber/WOPTO huggingface dataset:
Patent GB-1412620-A (GB)
Title: Feedback amplifier arrangements
IPC: H03F1/34
Filed: 1972-11-27
Abstract: 1412620 Feedback amplifiers; repeaters NIPPON ELECTRIC CO Ltd 27 Nov 1972 [26 Nov 1971] 54780/72 Headings H3T and H4R A feedback amplifier comprises an amplifier 17, a feedback network 18, an autotransformer 15 having an intermediate tap and having a first portion which is in series combination with the amplifier input or output terminal pair is connected across the circuit input or output terminal pair respectively with a further parallel connection formed by the series connection of the second portion with a resistor 16, the turns ratio of the first and second portions being equal to the impedance ratio of the respective amplifier terminal pair and the resistor, the arrangement being such that no part of a signal voltage appearing across the relevant circuit terminal pair appears across the autotransformer. The amplifier suitable as a repeater in a coaxial transmission system may have the autotransformer, resistor combination only at the input end (Figs. 1, 2 (not shown), or only at the output end (Figs. 3, 4, not shown), or at both ends as in Fig. 5, not shown). In the latter case, where the feedback network is of the shunt type, the two transformers may be replaced by a single transformer (Figs. 6, 8, not shown) having a further tapping provided for impedance matching in the case of unequal turns ratio of the separate transformers. The amplifier 17 and the feedback arrangement can be arranged to provide positive or negative feedback.
Patent GB-1346709-A (GB)
Title: Cylinder locks
IPC: E05B17/04
Filed: 1972-11-28
Abstract: 1346709 Cylinder locks HUWIL-WERKE GmbH 28 Nov 1972 [9 Dec 1971] 54942/72 Heading E2A A cylinder lock comprises a locking bolt, an inner key-operable cylinder 6, a locking cylinder 5 an outer cylinder 2a and an intermediate cylinder 7 disposed between the cylinders 2a and 5 and having an inclined guideway 11 in which a pin 12 on the cylinder 6 engages so that the cylinder 7 is displaceable axially on rotation of the cylinder 6; the cylinder 7 is secured as by a key 9 and keyway 8, against rotation relative to the cylinder 2a but is axially slidable relative thereto. The locking bolt is actuated by axial movement of the cylinder 7. As shown, the pin 12 extends through the guideway 11 into a radially extending cut-out in the cylinder 2a, and the cylinder may serve directly as a locking bolt or have a locking bolt attached thereto. A tumbler 14 engages either a groove 16 or 16a of the cylinder depending on the angular position of the cylinder 6.
Patent GB-1215849-A (GB)
Title: Glass tank furnace
Inventor: KOZMIN MIKHAIL IVANOVICH
IPC: C03B5/43
Filed: 1968-11-25
Abstract: 1,215,849. Glass melting furnace hearths. ORDENA TRUDOVOGO KRASNOGO ZNAMENI ZAVOD "AVTOSTEKLO". 25 Nov., 1968, No. 55725/68. Heading F4B. A glass tank furnace comprises a refractory hearth 1 having a lining of metal plates 2 of melting point not lower than 1400‹ C., a layer of granular refractory material 5 and a layer of heat insulating foamed refractory brickwork 6 being disposed between the plates 2 and brickwork 1. The plates 2 may be made of an ironchromium-aluminium alloy having a melting point above 1500‹ C. and the granular refractory material 5 which plugs leakages of glass melt from the furnace bath may be sand.
Patent GB-1324806-A (GB)
Title: Salts of 1/2 metal complex dyes containing sulphonic acid groups
IPC: C09B45/48
Filed: 1970-11-25
Abstract: 1324806 Salts of 1 : 2 metal complex dyes BADISCHE ANILIN- & SODA-FABRIK AG 25 Nov 1970 [26 Nov 1969] 56043/70 Heading C4P The invention comprises salts of 1 : 2 metal complex dyes of azo or azomethine dyes containing at least one sulphonic acid group with at least a molar amount in each case of a basic dye and an aliphatic amine. Suitable metallizable azo dyes are o-o<SP>1</SP>-dihydroxy-, o-carboxy o<SP>1</SP>- hydroxy and o-hydroxy-o<SP>1</SP>-amino monoazo dyes and compounds bearing a hydroxy group ortho to the azomethine bond are suitable as azomethine dyes from aromatic amines and aldehydes. Iron, cobalt and particularly chromium complexes are preferred. Basic dyes which may be used are azo, oxazine, azine, thiazine, methine and preferably triarylmethane or xanthene dyes. The aliphatic amine used may be primary, secondary or tertiary and have 4-18 carbon atoms and may be linear, cyclic or a branched chain. Mixtures of amines can also be used. The dye salts may be prepared by reacting the metal complex dyes with the basic dyes and amine in an alcoholic or glycolic solvent. The dye salts are suitable for colouring transparent plastics and for the production of transparent varnishes, printing inks and ball point pen inks.
Patent GB-566277-A (GB)
Abstract: 566,277. Gas lighting torches. STRETCH, A., and BALHATCHET, J. B. Aug. 4, 1943, No. 12562. [Class 75 (iii)] A gas lighter comprises an elongated frame 1 of strip metal fitted with spacing bars 2 forming the bearings of a spindle 3 which carries at one end an abrading wheel 4 in contact with a spring-pressed flint 15 and at the other a ratchet wheel 5 rotatable by a pawl 11 pivoted to a lever 8 operable about its pivot 7 against the resistance of a spring 10 by the thumb of the hand gripping a handle 6 on the frame. The spring - pressed plunger 19 of the flint tube 14 is withdrawable by a finger piece 20 to allow the insertion of a new flint through an aperture 16 in the flint tube. A sheet metal gas cap 21 may be fitted to the frame 1 around the abrading wheel and flint.
Patent GB-1165986-A (GB)
Title: Filling Valve Structure for Pressurized Containers
Inventor: BOYER RALPH KECKLER
IPC: B65D83/14
Filed: 1967-12-15
Abstract: 1,165,986. Dispensing liquids under gaseous pressure. EATON YALE & TOWNE Inc. Dec.15, 1967 [Dec.27, 1966], No.57187/67. Heading F1R. [Also in Division F2] A filling valve for pressurized fluid containers comprises a resilient hollow body 16 containing a valve member 28 held in engagement with a seat 29 until lifted by a filling probe 32, a port 24 also being opened to provide communication with the interior of the container. The port 24 may be a self-sealing slit which opens when the body 16 is distended by admission of fluid from the probe or it may be a normally-open part controlled by movement of the valve member. The latter may be of nylon p.t.f.e. or brass and is so dimensioned that it is urged towards the seat 29 by the body 16 which may be of nitrile rubber.
Patent GB-1374544-A (GB)
Title: Electric pushbutton switches
IPC: H01H13/12
Filed: 1972-12-14
Abstract: 1374544 Retractive switches OAK INDUSTRIES Inc 14 Dec 1972 [10 Aug 1972] 57665/72 Heading H1N A retractive push-button switch, Figs. 4 and 7, comprises an insulating base 20 having a number of sides 24 together with internal ribs 50 forming a chamber within which a movable resilient contact arm 44 associated with a terminal 36 can be brought into engagement with contact 42 of a terminal 34 by means of a protuberance 54 on the underside of an insulated push button 22 acting on the contact arm, via an upwardly directed tongue 48, against the action of spring 56, the push-button being telescopically mounted with respect to the base. The terminals extend outwardly of the base through openings 38, 40 and the arrangement of the tongue 48 gives an effective length to the contact arm greater than both its actual length and the distance between the terminals. Button 22 which masks the base and has the same general configuration, with the option of an outwardly extending skirt (Fig. 8, not shown), is retained on the base by lugs 64 (Fig. 6) which are snapped over outwardly extending hooks 62, and is guided by mating rails 60 formed within each side of the button engaging in slots 58 in each side of the base. In a modified form (Figs. 9-13, not shown) the button is effectively twice the size of that already described and the snap-on telescopic assembly and guide means are located with respect to outwardly extending wing portions of the base. The contacts can be of the break type. A plurality of switches may be mounted together to form a keyboard inchiding a printed circuit board 16 (Figs. 1 and 2, not shown) with the switch terminals extending through and being soldered thereto, the assembly being stiffened by the provision of a rebate 30 around the switch base (Fig. 6) which fits within openings in a metal or similar plate 32 and which is spaced from the printed circuit board by feet 28.
Patent GB-1422840-A (GB)
Title: Catalytic reduction of oxides of nitrogen
IPC: B01J23/12
Filed: 1973-12-17
Abstract: 1422840 Nitrogen oxides catalytic reduction MITSUBISHI CHEMICAL INDUSTRIES LTD 17 Dec 1973 [25 Dec 1972] 58321/73 Heading B1E [Also in Division C1] Oxides of nitrogen contained in an exhaust gas are catalytically reduced by contact with an oxide of cerium and/or an oxide of uranium as catalyst in the presence of ammonia. The catalyst may be a cerium oxide supported on a carrier of alumina, silica, silica-alumina, titania, diatomaceous earth and zirconia. The carrier may also be a gamma-alumina calcined at 550- 1000C, or may be coated with gamma-alumina or titanium dioxide. The catalyst may be prepared by applying an aqueous solution of a cerium salt to a carrier and either washing with an acid or with water, ammonia or an aqueous solution of an ammonium salt, followed by calcination. The catalyst used may contain 0.01- 50% by weight of cerium oxide or uranium oxide by weight of the total catalyst (including carrier). The gas containing the oxides of nitrogen and ammonia may be contacted with the catalyst at 200-650C at a space velocity of 1000-150000 hr<SP>-</SP>'. The process may be used to remove oxides of nitrogen from exhaust gases from power plants, nitric acid plants and automobiles.
Patent GB-1339904-A (GB)
Title: Electrostatographic process
IPC: B08B7/04
Filed: 1970-12-10
Abstract: 1339904 Electrographic cleaning process XEROX CORP 10 Dec 1970 [19 Dec 1969] 58706/70 Heading G2H Excess aqueous liquid developer remaining after image transfer is removed by applying a liquid cleaner miscible with the developer and the removing the cleaner and developer by means of a dry, absorbent, fibrous material. As shown, cleaner is applied to and removed from a drum 10 by means of an absorbent web 17 supplied with cleaner by a roller 24. Suitable materials for web 17 and roller 24 are listed. A heater 26 dries the drum. In Fig.2 (not shown) a different arrangement of roller and web is shown. In Fig.3 (not shown) a cleaner is applied by a first web (44) and removed by a second (49). Cleaners (e.g. water, methanol) are listed. Developers. Liquid carriers listed include mono- and polyhydric alcohols, ethers, acids, acid anhydrides, amines, esters and ketones. Specific developers named are: (1) glycerol, sorbitol, Santicizer (RTM), a butyl benxyl pthalate plasticizer) and a dye (2) hexanediol, Butvar (RTM), polyvinyl butyral) and a dye. (3) polypropylene glycol, staybelite Ester (RTM, an esterified wood rosin), Ganex (an alkylated polyvinyl pyrrol idone) and a dye. (4) diethylene glycol monoethyl ether and a dye. (5) glycerol, sorbitol, triethanolamine and dyes.
Patent GB-1453849-A (GB)
Title: Shaft coupling apparatus particularly for marine inboard- outboard propulsion systems
IPC: B63H23/34
Filed: 1973-12-20
Abstract: 1453849 Flexible couplings BRUNSWICK CORP 20 Dec 1973 [21 Dec 1972] 59150/73 Heading F2U A marine drive coupling comprises a resilient shaft coupling (e.g. resilient bushes 31) and a resilient housing coupling, the latter being formed of two telescoping parts 37, 42 with resilient members 50, 51 clamped between a projection 48 on one part and the inclined walls of a recess in the other. As shown, the jet drive propulsion shaft 15 is driven through engine shaft 16, flywheel 25, studs 33 and resilient bushes 31 in a plate 29 splined to the shaft end 28. The housing part 37 forms a radial bearing for the driven shaft and the housing part 42 is bolted to the flywheel housing 43.
Patent GB-1273835-A (GB)
Title: Improvements in and relating to cardiac apparatus
Inventor: SPENCER JOSEPH
IPC: A61N1/39
Filed: 1969-12-04
Abstract: 1,273,835. Defibrillators. CARDIAC RECORDERS Ltd. 19 April, 1971 [4 Dec., 1969], No. 59251/69. Heading A5R. A cardiac defibrillator comprises an electrolytic capacitor 1, an inductor 3 and a discharge switch 4 connected in series with the patients chest 7 by means of contacts 5, 6, and means of preventing the reverse charging of the capacitor which would otherwise occur when the switch 4 is closed due to the oscillatory current in the L.C. circuit formed. As shown, a plurality of capacitors 1 may be used, with diodes 2 as a means of preventing reverse charging. Alternatively in Fig. 4, not shown, Zener diodes (10) are used to prevent reverse charging, the Zener diodes also serving as a safety device to limit the voltage to which the capacitors are charged.
Patent GB-1299090-A (GB)
Title: Improvements in containers having an opening roof
IPC: B65D88/12
Filed: 1969-12-15
Abstract: 1299090 Releasable fastenings SOC INTERCONTINENTALE DES CONTAINERS 15 Dec 1969 [8 Jan 1969] 61063/69 Heading E2B [Also in Division B8] An ISO container has a removable roof 4 which is releasably secured to a door lintel 6 by fasteners 16 disposed within the container. To facilitate loading, the lintel is pivotable away from the container about a hinge 7. In the closed position of the lintel, a tapered pin 19 on the free end of the lintel is located by a tapered opening in a flange 23 carried by a corner upright, and the lintel is clamped to the flange by a threaded nut on a pivoted threaded rod 21. The roof is releasably clamped to the walls of the container by the fasteners shown in Fig. 5. Each fastener has an operating lever 10 which is connected to the container wall for engagement with a roof mounted keeper by a pivoted link 9 and has a projection 10a 11.
Patent GB-641747-A (GB)
Abstract: 641,747. Kitchen ranges. SCOTTISH CENTRAL, IRON CO., Ltd., and MUNDIE, J. Jan. 31, 1948, No. 2932. [Class 126] A combination firegrate has a hotwater boiler, a cooking oven beside the firebox and heating compartments mounted above the oven and the firebox, the latter being provided with firedoors which when closed provide for slow combustion or an increased araught. The open firebox 10 is provided with doors 25, having apertures filled with mica or monel gauze. An ashpan 14 placed beneath the firebox is fitted with an air regulator 16. An oven is arranged beside the firebox 10 and is heated by the circulation of combustion gases which finally reach an outlet flue 40. An inclined baffle 70 is placed in the flue beneath the oven to ensure even distribution of combustion gases beneath the oven. A hot-water boiler 17 is provided behind the firebox 10 and has above it a removable cover 18 which reaches up to a flue 19 above the firebox 10. Heating compartments 12, having removable bases are disposed above the oven and the firebox 10, and are insulated from one another and the side casing of the grate. A slide damper 62 is provided to control the flues 19, 56 and dampers control the circulation of gases round the oven.
Patent GB-781106-A (GB)
Abstract: 781,106. Testing balance of rotary parts. GISHOLT MACHINE CO. Feb. 21, 1955 [Nov. 29, 1954], No. 5094/55. Class 106 (2). [Also in Group XXXVIII] A machine 1 for repetitive testing for unbalance in rotary workpieces, comprises a conveyer belt 2 from a production line, which feeds workpieces 5 against a stop bar 6, a central body 13 carrying a rotary table 11 and a further belt 3 to carry the tested workpieces for assembly or packaging. A conventional carrier 9 formed with two pairs of gripper arms 10 is provided to simultaneously transfer a workpiece 5 from belt 2 to table 11 and to transfer a previously tested workpiece from the table to belt 3. The table 11 is mounted on a spindle 12 driven by a belt 16 from a motor 30 and the body 13 is mounted by flat springs 15 which provide for freedom of lateral vibration. The body 13 carries an arm 19 which supports a coil 18 within the field of a permanent magnet 20, the current generated in the coil when it is vibrated within the field of magnet 20 being fed through an amplifier 21 and an adjustable potentiometer 22 to a voltmeter 24, 25 having a scale 23 graduated to represent magnitude of unbalance in a workpiece 5. A whisker contact 28 is arranged to make contact with pointer 24 at the position shown by dotted lines just beyond the acceptable upper limit of unbalance in a workpiece, and this completes a circuit through a relay 26 to operate a solenoid 27 which swings a deflector arm 29 from a position aligned with an edge of belt 3 to a position across the belt (shown by dotted lines in Fig. 3) whereby the unacceptable workpiece is deflected from the belt 3 to a bin for subsequent rejection or balancing. The axis of spindle 12 may be horizontal or vertical.
Patent GB-2015706-A (GB)
Title: Burning waste materials
IPC: F23M11/04
Filed: 1979-02-26
Abstract: A method for burning waste materials having a great variation of combustible components, in which waste materials are placed in hermetically sealed collection containers (18) of burnable material and are introduced into a combustion passage in the packed condition. Each collection container is subjected to a precombustion controlled as a function of the inflammability of its contents and delivered to uncontrolled combustion only after attaining a predetermined degree of combustion. Precombustion may be controlled by varying the supply of independent energy and/or varying the stay in the precombustion zone. Precombustion may be observed visually by a camera installed in the furnace. Substantial amounts of liquid are separated from the waste materials subjected to precombustion and are gradually evaporated. The combustion furnace for carrying out the method has a combustion chamber (43) and an entry passage (12-15) preceding it where the collection containers (18) are introduced, and a precombustion chamber (35-38) with independent heating (45) is arranged between the entry passage and the combustion chamber. The precombustion chamber may be elevated relative to the combustion chamber and its grate. <IMAGE>
Patent GB-2015443-A (GB)
Title: Coupling a Steering Column to a Hydraulic Steering Controller
IPC: B62D1/16
Filed: 1979-03-01
Abstract: A problem with hydraulic steering controllers is that noise can be transmitted along the steering shaft to the driver's cabin. To reduce this noise transmission, the shaft comprises two parts between which there are two torsion couplings, one being an elastic coupling and the other a lost motion coupling, the elastic coupling only being effective until the torsional force applied to the shaft reaches a predetermined level whereupon the lost motion coupling becomes effective usually when there is a failure of pressure source to the controller. In the three embodiments described elastomeric material is used in the elastic coupling. The lost motion couplings may be pin and slot 27, 28, Fig. 2; bifurcated interengaging tubular portions 136, 137, leaving play 138, Fig. 5; or internal and external spline type ribs 240, 242, Fig. 7. <IMAGE>
Patent GB-2017889-A (GB)
Title: Refrigerating apparatus
IPC: F25D11/02
Filed: 1979-03-27
Abstract: A refrigerator comprising a body with a cold chamber 4, a freezing chamber 5 and a storage chamber 6 adapted to be maintained at or above the cold chamber temperature by evaporator coolers 10, 11, 12 respectively in a series circuit. Cooling medium is supplied in a cooling cycle from a compressor and condenser through a first capillary tube to the third cooler 12 and thence through a second capillary tube to the first cooler 10 and the cooler 11. <IMAGE>
Patent GB-2018701-A (GB)
Title: Sail furling mechanism
IPC: B63H9/10
Filed: 1979-04-10
Abstract: A mast head swivel for furling a jib sail comprises a fixed i.e. non- rotatable portion having an aperture 17 therethrough for receiving a halyard for connection to the head of the sail by way of a swivel connection. The fixed portion of the mast head swivel supports a rotatable portion 15 for connection by one or more fore-stays 11 to a winding arrangement secured to the deck of the craft. The rotatable portion is provided either with two diametrically opposed mountings for the attachment of a pair of parallel forestays or has welded to it a stirrup to which a single forestay is connected. <IMAGE>
Patent GB-2052942-A (GB)
Title: Insect traps
IPC: A01M1/10
Filed: 1979-07-19
Abstract: An insect trap comprises a funnel member 1 leading to an insect- retaining receiver 3, the funnel member being provided with a skirt 13 extending towards the receiver. <IMAGE>
Patent GB-2054115-A (GB)
Title: Drawer for dry ice
IPC: F25D3/12
Filed: 1979-09-04
Abstract: An air line food trolley has at the top a drawer 6 covering substantially the entire cross section of the interior of the trolley, for containing dry ice to cool the contents of the trolley. At the rear bottom edge of the drawer are slits 68. Dry ice in the drawer absorbs heat from air inside the trolley and the resulting cold carbon dioxide vapour issues through the slits 68 and descends inside the back of the trolley, thereby directly cooling the contents of the trolley and assisting convective cooling flow inside the trolley. Because the top of the space inside the trolley is substantially complete closed by the dry ice drawer 6, wasteful heat transfer by air flow under the top wall of the trolley is prevented. <IMAGE>
Patent GB-2033243-A (GB)
Title: Deionising or Otherwise Treating Liquid Streams
IPC: B01J47/10
Filed: 1979-10-04
Abstract: A process for treatment of a liquid stream, optionally containing solids such as minerals, comprises passing at least two different treating reagents, specifically ion exchange resins, through contactors 12, 13 each comprising a drum 14 with a rotor 15 having axially spaced discs compartmentalising the drum interior and carrying receptacles which rotate with the rotor and cause transfer of portions of one phase in the contactor to the other phase as the rotor turns. The liquid stream being treated is caused to flow along a path 20, 24, 25, 26 including, in succession, parts of each contactor so that the liquid stream is brought into contact with the reagents successively and in rotation. <IMAGE>
Patent GB-2033296-A (GB)
Title: Welding die for packaging machines
IPC: B29C65/18
Filed: 1979-10-17
Abstract: A welding die (2 or 200) comprises a carrier strip (3) supporting a plurality of die segments (4), each having a thrust face (11) urged a helical compression spring (15) carried round a thrust bolt (14) against the material to be seamed. The thrust faces of adjacent segments are contiguous or nearly so at their ends so that a continuous seam is produced. This independent resilient mounting of a plurality of segments compensates for a different number of layers over the length of the seam line. A polytetrafluorethylene cover may extend over the thrust faces of all of the segments. <IMAGE>
Patent GB-2035077-A (GB)
Title: Pens and brushes
IPC: B43K5/18
Filed: 1979-11-05
Abstract: A pen or brush is provided with a reservoir 1 for fluid such as water and a valve which prevents fluid passing from the reservoir to the tip unless the pen or brush is shaken. The valve comprises a piston 14, 15 housed in bores 12, 13 in bush 11 to provide a peripheral gap therebetween sufficiently narrow to seal fluid in the reservoir by capillary action but sufficiently wide to allow passage of fluid when the piston oscillates in the bore. <IMAGE>
Patent GB-2039590-A (GB)
Title: Buckle for a safety belt system
IPC: A44B11/25
Filed: 1980-01-11
Abstract: A buckle for a safety belt system has a socket member 20 for receiving a tongue 11, the tongue being latched by a pivoted latch plate 30. Release of the tongue is effected by a spring-urged release member 50 with an arm 54 for engaging the latch member and a nose portion 53 engageable by a sliding push button 60. To prevent inadvertent release of the tongue before depression of the push button is completed, the release member has a portion 55 which overlies and engages the latch member until the release member has been pivoted through a predetermined angle. <IMAGE>