baber/WOPTO huggingface dataset:
Patent GB-1330055-A (GB)
Title: Production of 6-alkoxy-5,6-dihydro-4h-pyrans
IPC: C07D309/30
Filed: 1971-04-19
Abstract: 1330055 Synthesis of 2-alkoxy-2,3-dihydro- 4H-pyrans BADISCHE ANILIN- & SODAFABRIK AG 19 April 1971 [21 Feb 1970] 22241/71 Heading C2C Compounds of the formula where R<SP>1</SP> is an unsubstituted or substituted aliphatic- or aromatic-hydrocarbon radical and R<SP>2</SP> and R<SP>3</SP> are hydrogen or aliphatic-hydrocarbon radicals are made by Diels-Alder reaction of an aldehyde CR<SP>2</SP>=CR<SP>3</SP>-CHO with a vinyl ether CH 2 =CH-OR<SP>1</SP> at an elevated temperature, such that the process is carried out continuously, initially in a recycle apparatus in which the ratio of fresh starting materials supplied to recycled reaction mixture (per unit time) is 1 : 4 to 1 : 20, and completing the reaction, in the reaction mixture leaving the recycle apparatus, in an apparatus in which the mixture is not circulated, e.g. in a tubular reactor.
Patent GB-1125036-A (GB)
Title: A process for the production of a thermoelectric arrangement
IPC: H01L35/34
Filed: 1967-05-12
Abstract: 1,125,036. Thermocouples. SIEMENS A.G. 12 May. 1967 [17 May, 1966], No. 22262/67. Heading H1K. A thermopile, consisting of semi-conductive thermo-electric bodies 4 linked by conductive bridges 3 sandwiched between a pair of heat exchangers 1, is assembled with the bridges 3 in thermally conducting but electrically insulating contact with the exchangers 1 by a process in which a sealed anodizing layer 2 is deposited on the heat exchangers and the bridges are formed by printing metallic layers on to the anodizing and then heating to " burn in " the deposited metal. The anodizing layer has a thickness of not more than 100Á and it is sealed by ingestion of boiling water. After sealing, the anodized layer is dried by heating at 200 C. and then a first deposit of silver paste is printed on to the anodizing and burned in by heating at 500 degrees. A succession of such layers are formed and the composite silver layer may constitute the bridges. However, it is envisaged that a layer of gold or platinum, similarly formed, may overlie a first silver layer and the final layer may be of chemically deposited copper. The heat exchanger is of aluminium and the anodizing is produced by anodic oxidation in an oxalic acid electrolyte, and after formation of a required pattern of metal bridges on the anodizing by the above described process, the semi-conductor bodies 4 are soldered to the bridges.
Patent GB-203349-A (GB)
Title: Method and apparatus for preventing a reduction of efficiency at the transition from light oil to heavy oil service in internal combustion engines
IPC: F02M1/00
Filed: 1923-09-04
Abstract: 203,349. Akt.-Ges. f³r Patentverwertung. Sept. 4, 1922, [Convention date]. Addition to 198,992. Void [Published under Sect. 91 of the Act]. Spray carburettors.- In a carburettor supplied with light and heavy fuel, the constant level fuel chambers are connected with the induction pipe so that fluctuations of pressure therein determine the admission of light or heavy fuel. As shown in Fig. 1, the light fuel chamber 112 and heavy fuel chamber 113' are provided with fuel nozzles 114, 115, with air inlets 120, 121, the inlet 120 being smaller than the inlet 121, and with pipes 117, 118 which communicate respectively with the induction pipe 116 below and above the throttle valve 119. At small throttle openings, the high suction above the throttle is transmitted to the chamber 113 and restrains the flow of heavy fuel; as the throttle is opened, the suction decreases in the chamber 113 and increases in the chamber 112, so that the flow of light fuel decreases and the flow of heavy fuel increases; finally, since the air inlet 120 is smaller than the inlet 121, heavy fuel alone is supplied. In a modification in which the pipes 117, 118 both open below the throttle valve, ball or other valves are provided in the pipes, the valve in the pipe 117 opening as the suction in the induction pipe increases, and the valve in the pipe 118 being normally open but closing as the suction increases. In an alternative form of this modification, the valve for the heavy fuel chamber controls the air inlet 121, and is gradually opened against a spring as the suction increases. In a further modification, the pipe 118, Fig. 5, opens into the pipe 117, which is provided with a double seated valve 131 and is connected below the valve with an air inlet 133. As low suctions, the valve 131 remains in the position shown and suction is transmitted to the chamber 113; at higher suctions the valve 131 is lifted thus closing the inlet to the pipe 118, and suction is transmitted to the chamber 112. In the form shown in Fig. 2, the chambers 112, 113 are provided with injector nozzles 122, 123 opening into the pipes 117, 118, which are interconnected and provided with air inlets 124, 125. The pipes 117, 118 may be constricted above the nozzles 122, 123, and the pipe 118 is provided with a resistance, for example by forming the pipe with several bends or with a restricted outlet. At small throttle openings, air is drawn through the pipes 117, 118 in the direction of the full line arrows, which produces a suction in the chamber 113; as the throttle is opened, this air current becomes smaller, and finally, owing to the resistance in the pipe 118, is reversed in direction, thus applying suction to the chamber 112.
Patent GB-888863-A (GB)
Title: Improvements in or relating to animal feeding
Inventor: EASTWOOD JOHN BEALBY
IPC: A01K5/00
Filed: 1957-07-13
Abstract: 888,863. Animal feeding appliances. EASTWOOD Ltd., W. & J. B. July 14, 1958 [July 13, 1957], No.22269/57. Class 5(2). A feeding appliance, particularly for use in feeding poultry, comprises a plurality of feeding troughs 4 each communicating via a hopper 3 and shoot 2 with a food conveyer 6, which is supplied with food from a hopper 5. The conveyer 6 is U-shaped in cross-section and is provided on each limb with a slide 8, pairs of braces 9, 10 being mounted between the slides, and shovel members 7 being pivotally mounted on the slides between each pair of braces. The slides 8 are reciprocated by cranks from the motor 12, the arrangement of the members 7, 9 and 10 being such that as the slides move in one direction the shovels 7 push the foodstuff along the conveyer 6, and during the return stroke the shovels pivot to ride over the foodstuff in the conveyer. Thus each of the systems 2, 3, 4 is filled in turn via the corresponding slit 24 in the base of the conveyer 6 and when all the systems are full, the foodstuff is fed to a hopper 20 secured to a balance arm 21 carrying an electric switch, so that when the hopper is filled the balance arm moves to actuate the switch and stop the motor 12. As shown in Fig. 1, the foodstuff is fed along one conveyer 6, along a cross conveyer 18 to a second conveyer 19 which is identical with 6, and from thence to the hopper 20. In a modification two parallel conveyers 6 are provided, a bar 27 extending between the conveyers and being connected to each pair of slides 8. Each conveyer is further provided with a crank 30 pivoted at 31 to a bar connected to the slides 8 and having a portion 32 which is engaged by a pivoted lever 33 connected by a line 34 to a balance pan mounted on that end of the conveyer which is remote from the hopper. A bar 29, which is reciprocated by the crank 28 from a motor, serves to reciprocate the slides 8, engaging the bar 27 during the forward stroke and the crank 30 during the return stroke, thereby reciprocating the slides 8. When all the feeding troughs are full, surplus foodstuff is fed to the balance pan, the latter eventually moving to displace the lever 33, thereby disengaging the drive to the slides 8.
Patent GB-186230-A (GB)
Title: Improvements in or relating to wind-screens for vehicles
IPC: B60J1/00
Filed: 1921-08-23
Abstract: 186,230. Arrol-Johnston, Ltd., and Eastwood, G. W. Aug. 23, 1921. Windscreens. -A windscreen, particularly adapted for the rear seats of motor vehicles, is formed of two sections 19, Fig. 1, each of which is pivotally supported at an intermediate point of its lower edge 18 on an arm 16 hinged to the side of the vehicle and is also slidably supported at its outer lower corner, preferably by means of a guide 22 pivoted to a second hinged arm 20 or by a telescopic arm 20, so that the screen sections can be adjusted towards each other to form a single screen or may lie along the sides of the vehicle to form side screens or windows between the rear of the doors 10 and the back of the vehicle. In order to connect the two sections when the inner vertical edges meet to form a V or flat screen one section is provided with sockets 25, Fig. 2, engageable by sliding spring bolts located in a tubular casing 26 on the other section. In a modification, Fig. 4, the outer lower edges of the screen are pivoted to carriers 34 slidable on horizontal guide-rails 35, and the hinged arms 30 carry pivoted guides 32 slidably engaging the lower edges of the screen sections 29.
Patent GB-886858-A (GB)
Title: Welded containers of circular cross-section
IPC: B01D3/32
Filed: 1959-06-30
Abstract: 886,858. Making hollow ware. FARBENFABRIKEN BAYER A.G. June 30, 1959 [July 3, 1958], No. 22427/59. Class 83 (2). An agitator, mixer, drier, &c., of circular cross-section comprises rings 2 machined internally to support the wall 1 of the agitator &c. to which they are secured by welding. Inclined slots 4 in the rings provide resilient fingers to support the wall. Channel members 3 support the rings 2, and jacket sections 6 with flared ends 8 for heating or cooling liquids are welded to the rings 2. An agitating &c. element rotates within the casing.
Patent GB-169576-A (GB)
Title: Improvements relating to the pipes of beer pumps and the like
IPC: B08B9/02
Filed: 1920-07-28
Abstract: 169,576. Rogers, E. S., and Pearce, S. G. July 28, 1920. Cleaning, fluid-pressure processes for. - The pipe system of a beer pump &c. comprises anumber of delivery pipes e<1>, e<2>, e<3> leading to the pumps a', a<2>, a<3> and connected through threeway cocks f<1>, f<2>, f<3> to a common main g communicating on one side of each cock with a separate supply-pipe i<1>, i<2>, i<3> for each delivery pipe and through a stop-cock k with a tank I having a pump m by means of which water may be forced into the tank to compress the air therein. The pipes are flushed by this water under pressure by turning the cocks to cut off the pipes i<1>, i<2>, i<3> and connect the pipes e<1>, e<2>, e<3> to the pipe g, and then opening the cock k.
Patent GB-1459136-A (GB)
Title: Pipe joint
IPC: F16L21/00
Filed: 1974-05-21
Abstract: 1459136 Pipe couplings BARNARD FABRICATIONS (MIDLANDS) Ltd 23 Oct 1974 [21 May 1974] 22537/74 Heading F2G Tubular elements 3, 4 of different cross-sectional dimensions are joined by forming an intermediate tubular member 5, which has a cross-sectional dimension generally matching a cross-sectional dimension of the element 3, machining the member 5, while it is still separate from the elements 3, 4, to a cross-sectional dimension such as to fit closely within or over the element 4, and connecting the member 5 between the elements 3, 4. The member 5 is preferably welded to the end or end portion of the element 3, and may be made of thicker material to minimize distortion during welding. The member 5 may be made from flat material by rolling or pressing around a former, the contiguous edges then being welded together. The member 5 may be machined to fit directly within or over the end of a pipe 1, in which case a groove may be formed in its surface to receive a sealing ring for engagement with the pipe 1.
Patent GB-812296-A (GB)
Title: Improvements in key locks
IPC: E05B63/04
Filed: 1956-07-20
Abstract: 812,296. Reversible locks. WOOD, G. H. A. Sept. 24, 1957 [July. 20, 1956], No. 22545/56. Class 44 In a combined mortice and cylinder lock, the cylinder lock is rotatably attached to the casing of the mortice lock with its axis at right angles to the plane in which the mortice bolt slides and is provided with a member which engages the bolt to reciprocate it, means being provided to fix the barrel of the cylinder lock to the casing in either of two positions spaced at 180 degrees from each other so that the combined lock is suitable for left or right hand fitting. The mortice lock comprises a casing 1 containing the mortice bolt 2 and including a face plate 3 and a side plate 4, and screwed into the latter is the cylinder lock 8 which is fixed in the alternative positions by means of a screw (not shown) passing through the face plate 3 and engaging the slots 10 in the outer barrel of the cylinder lock. A tongue plate 12 is secured to the end of the cylinder of the cylinder lock 8 by screws 13 and it carries a stud 16 for engaging a slot 17 in the mortice bolt 2, the barrel being provided with stops 14, to limit the rotary movement of the cylinder to 90 degrees, and with two sets of radial pins for cooperation with a single set of driving pins in the cylinder, to permit the key to be inserted or withdrawn from the two limiting positions of the cylinder.
Patent GB-1458622-A (GB)
Title: Internal combustion engines
IPC: F01N13/02
Filed: 1974-05-21
Abstract: 1458622 Treating exhaust gases DEUTSCHE VERGASER GmbH & CO KG 21 May 1974 [25 May 1973] 22598/74 Heading B1W The treatment of exhaust gas from an i.c. engine (11) in an afterburner (16) disposed in exhaust gas line (15) is controlled by an arrangement comprising CO and/or O 2  concentration detecting means (53) (upstream of the afterburner), signal generating means (55), air supply control means (21) which supplies air (via 39) to the exhaust line in response to signals from generating means (55) and a catalytic unit (82) for converting harmful gases mounted Upstream of the detector. The arrangement may also include an engine driven pump (17) for supplying a flow of extra air to air control unit (21), means for bleeding off and returning a fraction of this flow (the flow being adjusted by pump 17 in dependance on engine speed), the fraction being additionally influenced by suction-pipe (12) pressure, exhaust back-pressure (transmitted via 51a) and CO and/or O 2  concentrators (as above).
Patent GB-1312066-A (GB)
Title: Plasma burners
IPC: B05B7/22
Filed: 1970-05-11
Abstract: 1312066 Plasma generators ANNAWERK GmbH 11 May 1970 [12 May 1969] 22656/70 Heading H5H A solid material capable of forming a gas is introduced in the form of a powder in a carrier gas into a hollow, graphite electrode 12 where it decomposes and the gas produced is passed into the arc formed between the nozzle electrode 3 and electrode 12 where it forms a plasma which emerges from the nozzle. A cylindrical insert 4 of beryllium oxide between copper nozzle 3 and graphite electrode 12 defines the reaction chamber 5. A flanged cylindrical body 6 is urged by screws 10 against nozzle 3 thereby compressing a gasket 8 and forming a cooling jacket 15 supplied by ducts 16, 17 through main body 1. Gas at super-atmospheric pressure introduced to chambers 18, 20 through duct 21 prevents leakage of plasma. Gas forming solids specified are ammonium carbonate, ammonium hydrogen carbonate, nitrates, e.g. ammonium nitrate, oxalic acid and ammonium oxalate. Materials which break down into gas forming plasmas and metal oxides which are used in spray coating such as MgC 2 O 4 .2H 2 O or may be used. Solid material which does not gasify may be introduced to the emergent plasma jet into the reaction chamber 5 for spray coating. The plasma jet can be used for performing high temperature chemical reactions.
Patent GB-322506-A (GB)
Title: Improvements in or relating to machines for operating upon boot and shoe soles
IPC: A43D43/02
Filed: 1928-08-07
Abstract: 322,506. Gimson Shoe Machinery Co., Ltd., Holmes, W., and James, C. H. Aug. 7, 1928. Channelling; channel-opening.-In a channelling or channel-opening machine, an edge guide or abutment for the sole or insole is mounted in or carried by a pivoted carrier member or members connected directly to crank or eccentric means operable by a lever or equivalent under the control of the operator. The channel-opening tool 12 is mounted on a pivoted arm 22 connected by a rod 28 to a treadle-operat-ed member 27 also adapted to depress the work table 7 against the action of a spring 25. The edge guide 1 for the sole 13 has a shank for insertion in a pin 4 clamped to a bell-crank lever 2 by a nut 5. The other arm of the lever 2 is slotted to engage an adjustable crank 8 on a spindle movable by a lever 11 provided with a spring-pressed catch 15 for retaining- it in adjusted position. In a modification, Fig. 4, the guide 1 is carried by the joint pin of a toggle device, the other ends of the links being pivoted, respectively, fixedly at 19 and to the crank 8.
Patent GB-606191-A (GB)
Title: Improvements in or relating to thiophene compounds and processes of preparing the same
Filed: 1945-09-04
Abstract: 2-Alkylidene-3-keto-4-acylamido-tetrahydrothiophenes of the general formula <FORM:0606191/IV(b)/1> wherein R is an acyl group, R1 is a hydrogen atom or a carboxy, carboalkoxy, carboaryloxy, carboarylalkoxy group, or a group (other than an aldehyde group) readily converted to carboxy, and n is a small integer not exceeding 10, are prepared by condensing 3-keto-4-acylamido - tetrahydrothiophenes with aliphatic aldehydes of the formula OCH.(CH2)nR1 preferably in the presence of piperidine acetate as a catalyst at about room temperature (30 DEG  C.) under essentially neutral conditions and using a substantially inert organic solvent such as alcohol.  Examples are given of the preparation of the above products by condensing 3 - keto - 4 - benzamido - tetrahydrothiophene with (1) 3 - carbomethoxy - propanal - 1; (2) 4-carbomethoxy-butanal-1; (3) valeraldehyde; (4) 5-carboethoxy-pentanal-1 in the presence of piperidine acetate. The product of example (2) treated with p-nitrophenylhydrazine gives the corresponding p-nitrophenyl hydrazone.  4-Carbomethoxy-butyral-1 is prepared by heating together 1 : 3 - dicarboxy - propane and methanol, treating the product with thionyl chloride and hydrogenating in the presence of palladium as catalyst. Specifications 606,190 and 606,196 are referred to.
Patent GB-597618-A (GB)
Title: Punch and die assembly
IPC: B21D28/34
Filed: 1945-09-05
Abstract: 597,618. Punching. WHISTLER, L. V., and WHISTLER, S. A. Sept. 5, 1945, No. 22854. Convention date, Dec. 15, 1943. [Class 83 (iv)] A press or a sub-press for punching, stamping &c. is provided with magnetic means for securing punch-holders and die-holders in position. Punches 39 are secured by screws to holders 34 within which are located bar-magnets 65. For setting up, a punch templet 23 is secured to a plate 21 of the press or sub-press by screws 33 and the punch holders are located by collars 42. The magnets 65 secure the holders to the plate 21. The die-holders are similarly held. Screw or lever means is provided for releasing the punch &c. holders. The punch and die holders may be positioned by projecting spigots on the holders engaging drilled holes in the press members. Stripper plates 49 are secured to the punches by screws 48. Waste is removed by a shoot 58.
Patent GB-443210-A (GB)
Title: Apparatus for pest extermination
IPC: A01M13/00
Filed: 1934-08-07
Abstract: 443,210. Fumigating. ELKINGTON, H. D., 20, Holborn, London.-(Deutsche Ges, f³r Schõdlings Bekõmpfung; 7, Weissfrauenstrasse, Frankfort-on-Main, Germany) Aug. 7, 1934, No. 22897. [Class 81 (i)] [See also Group I] In apparatus for fumigating with a gas such as air charged with volatile toxic material such as hydrocyanic acid, the gas is blown through solid particles such as calcium cyanide which evolve the toxic material, from below upwardly into a chamber wherein some of the particles are whirled about, the upper part of this chamber being permeable to gas only and in the form of a hood constituting a substantial part of the wall surface of the chamber, and being surrounded by a gasimpermeable chamber having one or more outlets at its lower part. A container 5, preferably made in two sections held by clamps 9, is connected to the exhaust of a bellows or blower 21 and is secured at its upper edge to a cylindrical filter 13 of woven material pervious to gas but not to solid particles. The toxic solid may be placed in the container 5 or sucked from a container 22<1> by the blower. A cylinder 16 of impervious material such as rubberized woven fabric surrounds the filter 13 and is secured to a part 6 having outlets 18 which can be coupled by bayonet catches to a hose 19 leading to a room 23 to be fumigated. Removable supports 7 are fitted. The hose may be connected to a hot air heating system when all the rooms heated thereby can be fumigated simultaneously. The treatment of grain in an elevator is referred to.
Patent GB-727956-A (GB)
Title: System for projecting movable indicia upon a spherical surface
IPC: G02B23/10
Filed: 1953-08-20
Abstract: 727,956. Moving signs. BENDIX AVIATION CORPORATION. Aug. 20, 1953 [Sept. 17, 1952], No. 23025/53. Classes 3 (1) and 3 (2). [Also in Groups XIX and XXXVI] A system for projecting a luminous movable index 14<SP>1</SP> on to a surface of spherical curvature 12, e.g. the screen of a cathode-ray tube 11, without distorting the shape of the index and without obstructing the view of the screen comprises an opaque spherical shell segment 13 with a transparent portion 14 corresponding to the index 14<SP>1</SP> interposed obliquely between the screen 12 and a point source 28 (42, Fig. 3) of light, ultraviolet or infra-red radiation capable of producing a visible image on the screen 12. The shell 13 is rotatably mounted in a circular frame 15 supported by members 16 from a ball and socket mounting 17, 18 fixed at the centre of curvature 43, Fig. 3, of the shell which is located on the straight line joining the source 42 and the centre of curvature 41 of the screen 12 such that <SP>r1</SP> /r2  = <SP>d1</SP>/ d2 , where r1, r2 are the radii of the shell 13 and screen 12 respectively and d1, d2 are the distances of the source 42 from the centres of curvature 43, 41 of the shell 13 and screen 12. A conical hood 25 is mounted above the shell 13 with a projecting felt strip 27 to provide a light seal; Fig. 2 (not shown) illustrates details of the mounting of the shell 13. In operation, the position of the index 14<SP>1</SP> is adjusted by suitably positioning the frame 15, 16 in the ball and socket joint 17, 18 and then locking it with the screw 19 and the orientation of the index is controlled by a servo motor 23 which rotates the shell 13 in the frame 15; the orientation may indicate the angular position of a directional aerial which controls motor 23.