baber/WOPTO huggingface dataset:
Patent GB-190808-A (GB)
Title: Improvements in and relating to apparatus for cleaning or otherwise treating air or other gases
IPC: B01D46/26
Filed: 1921-09-29
Abstract: 190,808. Stott, O. Sept. 29, 1921. Air and gases, moistening and washing.- Apparatus for washing and humidifying air or gases comprises a rotatable filter drum which is moistened and enclosed in a casing and provided cn its periphery with substantially radial blades on which the air or gas impinges to rotate the drum. The drum comprises a medial disc 6 on which the transverse radial blades 7 are mounted, their outer ends being secured to annuli; perforated or meshed grids 8 containing metal, wool, or other filtering material, are supported between the annuli and between adjacent blades. The drum is enclosed in a volute casing 9 and the inlet of air at the top is baffled by a plate 11. Endless belts 13 pass over pulleys 12 on the drum shaft 5 and at their lower ends support pulleys 14; the belts may carry buckets or lifters by which liquid is lifted from a well 15 and delivered to a trough supplying perforated pipes 17 extending across the grids 8; valves regulate the amount of liquid supplied to the pipes 17, any surplus flowing down a pipe 19 to the well.
Patent GB-768725-A (GB)
Title: Improvements in ovens for dielectric heating
Inventor: NAYLOR JOSEPH FRANCIS
IPC: H05B6/78
Filed: 1954-09-06
Abstract: 768,725. Dielectric heating. WEST LANCASHIRE RADIO & TELEVISION LABORATORIES, Ltd., VICARS, Ltd., T. & T., and RADIO HEATERS, Ltd. Aug. 16, 1955 [Sept. 6, 1954], No. 25816/54. Class 39(3) A radio-frequency dielectric heating oven through which articles or pieces to be heated are passed on a conveyer band 3 has a screening hood 11 of a material having good electrical conducting properties, e.g. aluminium, copper or brass, the hood providing a path for space currents which would otherwise produce wasteful heat in the steel framework of the oven. Electrodes 8, 9 are connected to a generator 17 by conductors 18, 19 and are suspended by insulators 10 from the hood which is movable vertically by means of a hand wheel 16 for rotating pinions 14 engaging racks provided on four spindles 12. The power fed into the oven is controlled by moving the hood and electrodes towards or away from the band 3 which passes over a non-magnetic sheet 5 of stainless steel. Blocks 21 of silicon glass insulate the spindles from the hood which is thus insulated from the rest of the oven. The hood may be formed of a single sheet of metal or built up from a number of sheets fixed together, e.g. by brazing, soldering, screwing or riveting. In an alternative construction the electrodes may be mounted in a fixed hood and the conveyer band made movable up and down. The oven may be used for baking edible material, foundry cores or ceramic articles, or for drying textiles, cardboard or powdered chemical substances.
Patent GB-1419193-A (GB)
Title: Hybrid circuit panel
IPC: H01L23/14
Filed: 1973-05-30
Abstract: 1419193 Printed circuits INTERNATIONAL BUSINESS MACHINES CORP 30 May 1973 [30 June 1972] 25824/73 Heading H1R A panel for printed circuitry comprises regions provided by inserts 11 of different material from the major portion of the panel, which material has a co-efficient of thermal expansion matching that of semiconductor devices 12 mounted on the regions. The insert material may be ceramic, e.g. alumina or silica, glass or, if suitably insulated, metal, e.g. titanium or iron-nickel-cobalt alloy, and the remainder glass-fibre reinforced synthetic resin. The panel may be manufactured by stacking sheets of resin-impregnated glass cloth, placing preformed inserts in registering openings therein, and compressing under heat until the surfaces are coplanar and curing of the resin is completed. The insert surfaces may be roughened if necessary to enhance gripping by the resin material. During pressing, auxiliary sheets with registering holes may be arranged at the ends of the stack to avoid pressure on the insert. To insulate a metal insert, the outer resin layers have no openings, the matching of the coefficients of expansion of insert and semiconductor device being little affected if the covering layer is thin enough. Preferably the devices 12 are secured to the substrate by solder columns using reflow soldering techniques (Fig. 2, not shown). The laminated resin sheets may include intermediate conductor layers (Fig. 3, not shown). The insert may be sufficiently conductive to function as a heat sink, or may have a heat sink associated with it (Fig. 5, not shown).
Patent GB-733974-A (GB)
Title: Improvements relating to cams for internal combustion engines
IPC: F01L1/08
Filed: 1953-09-18
Abstract: 733,974. Valve gear. DAIMLER-BENZ AKT.-GES. Sept. 18, 1953 [Sept. 22, 1952], No. 25826/53. Class 7(6). [Also in Group XXVIII] A cam giving a steady deceleration of the part, such as a valve-operating tappet, actuated thereby has a lift curve, Fig. 2, composed, in the region between the points 1, 4, of maximum velocity of lift and descent, of a part 5 comprising a polynomial curve of a relatively high order which merges at each end into oblique sine curves i.e. curves obtained by plotting a sine curve on an inclined system of co-ordinates. The curve 5 shown is a polynomial of the fourth order, but the curve may be of higher order or be composed of sections of different polynomial curves. The oblique sine curves are “ period in length and extend between the points 1, 2 and 3, 4. The acceleration curve 6, Fig. 3, obtained from the lift curve of Fig 2, is, between the points 1, 4, substantially parallel to the curve 7 representing the acceleration which the valve loading spring is capable of imparting to the tappet.
Patent GB-835322-A (GB)
Title: Stroke adjustment means for forging machines
Inventor: APPEL GERHARD HEINRICH
IPC: B30B1/40
Filed: 1957-08-16
Abstract: 835,322. Forging. APPEL PROCESS Ltd. Aug. 16, 1957, No. 25860/57. Class 83 (4). In a swaging machine having a set of radially acting dies 11 adapted to act on a workpiece W, curved wedges 20, 21 are provided for varying the stroke positions of the dies. The latter are actuated through members 12 by transversely reciprocated drivers 13 as described in Specification 833,813. These drivers have concave cam surfaces 16 co-operating with rollers 17 engaging in similar cam surfaces on the members 13 and on backing members 18 which are supported against a fixed structure 22 through pairs of oppositely movable curved wedges 20, 21. A stroke-adjusting piston 30, Fig. 3, working in a fluid-pressure cylinder 31 is connected by links 35, 36 to a hair of rings 32, 32 rotatable on a central boss 34. These rings are also connected by pairs of links 38, 39 with the wedges 20, 21 whereby the latter are moved together or apart, for varying the stroke, by movement of the piston 30. The lengths of the links 38, 39 are adjustable by nuts 42 for varying each wedge independently. Specification 797,518 also is referred to.
Patent GB-682187-A (GB)
Title: Improvements in or relating to hydraulic transmission systems
IPC: F15B7/02
Filed: 1949-10-10
Abstract: 682,187. Hydraulic machines. FORD MOTOR CO., Ltd., and DEMOCRATES, A. J. July 13, 1950 [Oct. 10, 1949], No. 25979/49. Class 69 (ii). In a device for transmitting power from a rotating shaft and transforming it into a reciprocating motion at a distant point from the rotating shaft through hydraulic means in which the rotary motion is transformed into a reciprocation through a crank A or the equivalent, actuating a rocker arm C to reciprocate plungers F in cylinders H to oscillate columns of liquid in pipes P which actuate similar plungers F<SP>1</SP> in cylinders H<SP>1</SP> to rock a shaft D<SP>1</SP>, and a feeder pump 5 supplies liquid under pressure into the columns through inlet valves 11, relief valves 18 can be lifted from their seats by a lever 14, at will, to disengage or engage the driven unit. The device is enclosed in a reservoir K and the cylinders H have venting holes I uncovered by the pistons F near the top dead-centre position. The pump 5 is actuated by the rocker shaft D and has an inlet port 4 and valve 3 and communicates with the valves 11 and an accumulator 7 through a valve 6. The shaft D<SP>1</SP> is connected to a power transmitting lever S (not shown) which operates between adjustable stops.
Patent GB-237855-A (GB)
Title: Aerial wire
IPC: H01Q1/14
Filed: 1924-10-31
Abstract: 237,855. Ritter, F. July 29, 1924, [Convention date]. No Patent granted (Sealing fee not paid). Aerials.-Portable aerials are made of lengths of spiral wire a preferably of flexible steel capable of considerable extension. Lugs b serve to fix the aerial in position, or to couple several lengths of spiral together. Reference has been directed by the Comptroller to Specification 233,465.
Patent GB-628236-A (GB)
Title: Improvements relating to delayed-action electric switches
IPC: G04F1/00
Filed: 1947-09-25
Abstract: 628,236. Retractive switches. C.A.V., Ltd., and THORPE. E. H. C. Sept. 25, 1947, No. 26019. [Class 38(v)] A manually-operable switch, suitable for controlling direction indicators on road vehicles, comprises a spindle f carrying cams e, h. The former actuates either of a pair of spring contacts (not shown), depending on which way the knob g is turned. The second cam h co-operates with levers i which bear on a spring - pressed plunger j connected at its other end to a diaphragm k dividing an air chamber into two parts m, n, the former preferably being sealed. Upon rotation of the spindle f, the diaphragm is moved to the right and displaces air through a non-return valve o, p. The rate of return of the switch to its initial position is governed by an adjustable valve q in the air inlet to part n. An indicator lamp w is mounted beneath the knob which may be translucent or have one or more windows.
Patent GB-518295-A (GB)
Title: Improvements in or relating to the manufacture of glass ampoules
IPC: A61J1/06
Filed: 1938-09-06
Abstract: 518,295. Making glass ampoules. KIMBLE GLASS CO. Sept. 6, 1938, No. 26056. Convention date, Sept. 14, 1937. [Class 56] [Also in Groups VI and XXX] Sub-normal pressure in an empty sealed glass ampoule is relieved by heating the ampoule and then puncturing it, e.g., by means of a flame. As shown, ampoules pass down a shoot 11 on to a support 15 from which they are allowed to pass by an intermittently moving gate 17 to an endless chain conveyer, which is driven step by step and each link of which has a plate 44, 45 for picking up and supporting the ampoules. After each opening of the gate, the support is lowered to tip off any broken ampoule which has failed to reach the conveyer. The ampoules pass between adjustably and flexibly mounted ,guide plates 28, 65 over an adjustably mounted burner 53 and in due course reach a perforating flame 69. The apparatus may be geared to an ampoule-makirig machine or may be an independent unit.
Patent GB-1128879-A (GB)
Title: A process for the preparation of dimers and/or trimers of bicyclo [2,2,1] heptadiene-2,5 and alkyl derivatives thereof
Inventor: ZOCHE GUNTER
IPC: C07C2/42
Filed: 1967-06-06
Abstract: 1,128,879. Polymerizing bicycloheptadienes. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 6 June, 1967 [8 June, 1966], No. 26074/67. Heading C5E. Bicyclo[2,2,1]heptadiene-2,5 and alkyl derivatives thereof are dimerized and/or trimerized at 100-200‹ C. in the presence of (a) a catalyst which is a complex compound of a metal of Groups I B  or VIII of the Periodic Table in a low oxidation state (preferably zero) as the central atom with electron-yielding compounds as ligands; and (b) a dienophilic compound, e.g. maleic anhydride, benzoquinone, acrylic acid, acrolein, acrylonitrile or cinnamaldehyde. The catalyst is preferably an iron complex, which may be prepared by mixing a suitable iron con pound with the electron-yielding compound, and optionally, if the iron is not already in a low oxidation state, with a reducing agent such as a trialkyl or alkoxydialkyl aluminium. The electron-yielding compound may be bicyclo[2,2,1]-heptadiene-2,5 or its dimer, another olefin, or a triaryl phosphine, and carbonyl g o ps may also be present. Preferably the starting material is boiled with the dienophilic compound prior to contact with the catalyst. The dimerisation and/or trimerisation is preferably conducted in the absence of a solvent, and the products may be hydrogenated in the presence of Raney nickel.
Patent GB-1173089-A (GB)
Title: Production of Esters
Inventor: YEOMANS BERTRAM
IPC: C07C69/12
Filed: 1967-06-06
Abstract: 1,173,089. Esters of primary alcohols. BP CHEMICALS (U.K.) Ltd. 16 April, 1968 [b June, 1967], No. 26075/67. Heading C2C. Esters of primary alcohols are prepared from a primary alcohol contaminated with secondary and/or tertiary alcohols by feeding the primary alcohol and a substantially equimolar quantity of carboxylic acid to a reaction vessel containing the said acid and an esterification catalyst, removing the ester product and water formed by distillation and maintaining an anhydrous composition in the reaction vessel. Some of the ester removed may be recycled to the top of the distillation column to complete the removal of water from the system. If the water content of the water-ester azeotrope is high some of the water may be refluxed to assist ester removal. An example illustrates the process as applied to the production of n-propyl acetate from acetic acid and n-propanol contaminated with sec-butanol using sulphuric acid as a catalyst.
Patent GB-172146-A (GB)
Title: Improvements in or relating to connections for pipes, tubes, or the like
IPC: F16L13/00
Filed: 1920-09-11
Abstract: 172,146. Abeleven, F. A. Sept. 11, 1920. Joints comprising external sleeves.-The ring c shrunk over the pipe ends a, b which are to be jointed is provided with an annular shoulder f to ensure the correct location of the shrunk ring with regard to the pipe ends. Such joints may also be employed in connection with elbow pieces connecting two pipe lines not in alignment.
Patent GB-372213-A (GB)
Title: Manufacture of condensation products of amino-substituted arseno-compounds
IPC: C07F9/70
Filed: 1931-09-18
Abstract: Organo-arseno compounds containing substituted amino groups are prepared by treating an arseno compound containing at least two amino groups with an alkylene oxide and formaldehyde-bisulphite, simultaneously or in either order of succession, whereby an amino group in one nucleus is condensed with the alkylene oxide and an amino group in the other nucleus is condensed with the formaldehyde-bisulphite.  The products possess therapeutic properties.  Examples are given of the treatment of (1) 4<1>-arseno-di-(1-phenyl-2 : 3-dimethyl-4-amino-5-pyrazolone) first with glycide and then with sodium formaldehyde-bisulphite, (2) 3 : 3<1>-diamino-4 : 4<1>-dihydroxyarsenobenzene with glycide, sodium bisulphite and formaldehyde, (3) 3 : 3<1>-diamino-4 : 4-dihydroxyarsenobenzene with propylene oxide, sodium bisulphite and formaldehyde, (4) 3 : 3<1> : 4<1>-triamino-4-hydroxyarsenobenzene, prepared by reducing 3-amino-4-hydroxybenzene arsonic acid together with 3 : 4-diaminobenzene arsonic acid, with glycide, formaldehyde and sodium bisulphite.  The formul  of the products are given. Specification 226,686, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-707669-A (GB)
Title: Process for the preparation of 3-(2-oxy-phenyl)-pyrazols and 3-(2-oxy-5-halo-phenyl)-pyrazols
IPC: C07D231/12
Filed: 1951-11-09
Abstract: The invention comprises substituted pyrazols of the general formula <FORM:0707669/IV (b)/1> wherein R1 represents hydrogen or an alkyl radical and R2 represents hydrogen or a halogen atom, and salts thereof with inorganic and organic acids, and a process for the preparation of the above compounds by reacting the required o  - acylated - 2 - oxy - acetophenones or o -acylated - 2 - oxy - 5 - haloacetophenones with semicarbazide hydrochloride or a solution of hydrazine hydrate.  In the examples the following compounds are prepared: 3-(2-oxyphenyl) - pyrazol and its hydrochloride salt, 3 - (2 - oxy - 5 - chlorophenyl) - and 3 - (2-oxy - 5 - bromophenyl) - pyrazol, 3 - (2 - oxyphenyl) -, 3 - (2 - oxy - 5 - chlorophenyl) - and 3 - (2 - oxy - 5 - bromophenyl) - 5 - methylpyrazol, and 3 - (2 - oxy - 5 - bromophenyl) - 5-ethylpyrazol.  2 - Oxy - 5 - bromo - o  - formyl - acetophenone is prepared by the condensation of 2-oxy-5-bromoacetophenone and ethyl formate.
Patent GB-977837-A (GB)
Title: Improvements in metal-cutting circular saws
IPC: B23D61/02
Filed: 1962-07-09
Abstract: 977,837. Sawing. FIRTH BROWN TOOLS Ltd., and W. H. CRISP. June 26, 1963 [July 9, 1962], No. 26321/62. Heading B5L. A metal cutting circular saw comprises a disc 10 forming a body of the saw and a rim of separately constructed segments 12 fixed around the disc and having circumferential cutting teeth 17, 18 and side cutting edges 22 which stand proud, in the axial direction, of the remainder of the segments and have clearance angles. The segments are secured to each other by rivets passing through holes 16 and to the disc 20 by rivets 14, the segments being of a hard steel, such as tool steel, with inserted cutting tips of tungsten carbide, and the disc of carbon steel. Each segment is formed with three roughing teeth 17 alternating with three finishing teeth 18. The roughing teeth extend further radially from the centre of the saw than the finishing teeth and have a centre straight portion with the corners 20 cut away, whereas the finishing teeth have a straight cutting edges 19. A side cutting edge 22 extends radially inward from both ends of the edges 19 to form the side cutting edges. The edges 22 may be parallel, tapered or hollow ground, the body of the segment being parallel. In other embodiments, a series of three teeth may have one tooth having one corner cut away, a second tooth the opposite corner cut away, and the third tooth retaining both corners, the corners may be rounded, the roughing teeth have a centre point instead of a straight portion, and more or less of each or both kinds of teeth on each segment.
Patent GB-231209-A (GB)
Title: Improvements in dyeing processes
IPC: D06P1/00
Filed: 1923-10-22
Abstract: Animal or vegetable fibres are dyed by oxidizing phenols, amines or their salts by means of persulphate together with a metallic salt or oxide.  The medium may be acid, neutral, alkaline, ammoniacal or pyridine may be added.  In the case of an alkaline medium a substance, such as Seignette salt, sugar, or glycerine, is added to prevent precipitation.  Suitable phenols and amines are phenol, diaminophenol, p-aminophenol, hydroquinone, catechol, resorcin, diamino-and dinitroresorcin, pyrogallol, tannins, and extracts containing them such as oak, chestnut, willow, sumae, birch, quebracho and catechu, aniline for example as aniline oil, p-toluidine, m-phenylenediamine, a - and b -naphthylamines and benzidine.  Examples are given using the above reagents to give yellows, reds, browns, greens, blacks, violets and grays in conjunction with salts, such as sulphates, of copper, nickel, cobalt, iron (as ferrous or ferric), vanadium, zinc, and magnesium.  Two or more salts may be employed together, as well as two or more tannins or an amine and a phenol, for example m-phenylenediamine and tannin, to give different shades or the metals may be employed in their various stages of oxidation. The oxidation may be carried out either in the cold or with application of heat.  Polychromatic effects may be obtained by printing a ground colour, produced as described above, with a thickened metal powder, salt or oxide.  Specification 11451/03 is referred to.
Patent GB-1312608-A (GB)
Title: Fluid flow distributing arrangement
IPC: B60K15/077
Filed: 1971-04-19
Abstract: 1312608 Motor vehicle fuel tanks DAIM. LER-BENZ AG 19 April 1971 [7 April 1970] 26351/71 Heading B7H [Also in Divisions G1 and G3] A system for maintaining equal the liquid levels in two tanks 9, 10, for example, the fuel tanks of a motor vehicle, comprises two delivery pumps 11, 12 feeding a pump 14, for example an injection pump, via a vent 13, a pressure regulator 15 to which excess flow is delivered from pump 14, and a fluidic flow distributing element 1 whose control and output lines 19, 20 and 17, 18 respectively, terminate within the two tanks. In the event of the levels in the two tanks being equal, liquid fed to the fluidic element inlet passage 3 from the regulator 15 is divided equally between the two element outlet passages 5, 6 and hence the two output lines 17 and 18. In the event of the two levels becoming unequal, as shown, the two control lines 19, 20 contain liquid and air, respectively. Accordingly, liquid flowing in inlet passage 3 is biased towards the denser control medium contained in control line 19 and so leaves the fluidic element solely via outlet passage 5 from where it is conveyed to tank 10. Once the liquid levels in the two tanks become equalized, the fluidic element reverts to the first mentioned state wherein both outlet passages 5, 6 are active. More than two control passages 19, 20 may be provided and the free ends of these may be disposed within the tanks at levels corresponding to the minimum and maximum permissible levels of the liquid contained in the tanks.
Patent GB-173033-A (GB)
Title: Improvements in or relating to electric calling or time alarm devices for use in hotels and the like
IPC: G04C21/32
Filed: 1920-09-14
Abstract: 173,033. Smith, E. R. Sept. 14, 1920. Time alarms.-In a hotel system of the type comprising a switchboard for connecting the various room bells to different contacts on a clock, the switchboard is of the interlocking press-button type, so that the depression of a button corresponding to a given hour and room releases any previously depressed button of the series belonging to the same room. The switchboard comprises a number of bars 4, one for each alarm bell, each formed with two rows of apertures 6, corresponding to different times A.M. and P.M., each aperture containing a contact-spring 17 connected through a lead 24 to one of the clock contacts 2a, which are wiped by an arm 39 geared to rotate once in 24 hours. In each aperture is mounted a spring-controlled button 5 which, when depressed, makes contact with the appropriate spring 17 and is held depressed by one of a pair of locking-bars 14 engaging with an annular groove 9, the locking- bars being pivotally connected to the bar 4 and joined together by a link 16. At the desired time the alarm circuit is completed from the battery 37 through the arm 39, contact 2<a>, lead 24, contact spring 17, button 5, bar 4, alarm 31, and common return lead 36 back to the battery. A switch 33 mounted adjacent to each alarm disconnects the alarm and completes a circuit through an electromagnet 21 mounted on the bar 4, thus attracting the armature 19 carried on one of the locking-bars 14 and so releasing the depressed button 5. A hand-lever 22 also carried by one of the locking-bars may release the setting. The contact springs 17 may be made thermostatic to give an intermittent alarm.
Patent GB-1397113-A (GB)
Title: Spirometer
IPC: A61B5/091
Filed: 1972-06-07
Abstract: 1397113 Measuring fluid-flow electrically SANDOZ Ltd 7 June 1972 [11 June 1971]  26483/72 Heading GIN A spirometer comprises a heated W.T.C. thermistor R2 operating typically at 200 ‹C, over which fluid-flow to be monitored may be directed, mounted in a sensing circuit in the form of a resistance bridge circuit 13 coupled with inputs of a difference amplifier 15 which amplifies a bridge imbalance signal across junctions J 1 , J 2  caused by cooling of the thermistor due to fluidflow and applies it via emitter follower 17 to junction J3 of the bridge to increase current through the thermistor and cause it to assume its operating temperature when the bridge will be substantially rebalanced, voltmeter 16 monitoring the potential across the bridge junctions J 3 , J 4  which potential is a function of fluid-flow.