baber/WOPTO huggingface dataset:
Patent GB-716945-A (GB)
Title: Improvements relating to the manufacture of dry surface contact rectifiers
IPC: H01L21/08
Filed: 1952-10-02
Abstract: 716,945. Semiconductor devices. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., SHEPPARD, E. A., and STEVENS, S. A. Aug. 20, 1953, [Oct. :2, 1952.] No. 24672/52. Class 37. Small rectifier elements suitable for assembly in a stack are punched out from a metal plate roughened on both sides and provided on one face with an adherent semiconductor layer and a thin film of electrode metal, and on the other with a foil of soft corrosion resistant metal such as silver or a tin alloy, the punching pressure being such as to make the foil adhere to the rough surface of the metal plate.
Patent GB-224674-A (GB)
Title: Improvements in or relating to means for testing temperatures
IPC: G01K11/12
Filed: 1923-10-04
Abstract: 224,674. Chapman, A. W. Oct. 4, 1923. Thermometers.-In a device for indicating whether a particular temperature has been reached, and comprising a material which changes colour by decomposition when raised to that temperature, the test material consists of a mixture of substances which are relatively inert at ordinary temperatures but progressively react on one another with progressive change in colour when raised to and maintained at the temperature to be indicated. A suitable mixture for indicating a temperature of 120‹ C. in connection with the sterilization of surgical dressings consists of 1 gramme of glucose dissolved in 12 to 15 c.c. of water containing 6 c.c. of concentrated sulphuric acid, the whole being made up with water to 25 c.c. By enclosing in the same receptacle two mixtures which change colour at different temperatures, an indication may be obtained as to whether the temperaturereached' has exceeded the lower of these temperatures but has not exceeded the higher. Specification 204,114 is referred to.
Patent GB-921802-A (GB)
Title: Production of formaldehyde polymers
IPC: C08G2/00
Filed: 1961-07-07
Abstract: A high molecular weight polymer of formaldehyde is prepared by polymerizing formaldehyde under anhydrous conditions at 20 DEG  to 130 DEG C. in the presence of from 0,01 to 500 mg. per litre of solvent of a hydrazinium catalyst of formula <FORM:0921802/IV(a)/1> where R is alkyl, alkoxy or polyalkoxy and X is an organic radical containing at least six carbon atoms.  The formaldehyde gas diluted with an inert gas may be fed into an inert solvent containing the catalyst.  Specified catalysts are those in which X is stearate, naphthenate, oleate, palmitate and acid phthalate, the remainder being N-N-dimethyl-N(hydro-"tallow")-; N-N-dimethyl-N-"coco"-or N-N-bis-"soya" - N - methyl-hydrazinium and related substances.  The solvent may be cyclohexane.
Patent GB-415269-A (GB)
Title: Improvements in or relating to cutting apparatus
IPC: B26D7/18
Filed: 1933-09-06
Abstract: 415,269. Cutting webs. HOE & CO., Ltd., R., 109, Borough Road, London.-(Hoe & Co., Inc., R.; 138th Street, New York, U.S.A.) Sept. 6, 1933, No. 24740. [Class 31 (i).] Cutting-apparatus, more particularly for cutting webs of paper delivered from rotary printing machines comprises a knife 18, preferably with a sharp serrated cutting edge, supported by cheek blocks 19 contained in a two-part knife-holder 12, 13 mounted in a recess in the periphery of the cutting cylinder 11. The cheek blocks are limited in their movement by overhanging portions 14 of the knife holder 12, 13 and are not therefore weakened by perforations or slots for stop pins for this purpose. The blocks 19 are pressed outwards by springs, and the trailing block may, as shown, be locked with its outer surface substantially flush with the surface of the cutting cylinder 11, so as not to interfere with collecting pins or the like which engage the sheets and help in pulling them forward, by inserting a hold-down bar 24.
Patent GB-845922-A (GB)
Title: Manufacture of beams
IPC: E04C3/04
Filed: 1957-08-06
Abstract: 845,922. Making girders. MACOMBER Inc. July 26, 1956, No. 12180/55. Class 83 (2). [Also in Group X] A girder is made by cutting a length from a girder having two chords 10, 11 joined by a zig-zag bar web 13, welding a plate 35 across each end and an angle-iron 27a at each end, parallel with and intermediate the chords, to an end-plate 35 and the web. In Fig. 6, the lower chord is cut shorter than the upper to produce an underslung girder and a bearing-plate 31 of channel-section with outwardly-directed flanges is welded under the projecting part of the upper chord. The chords 10, 11 are of triangular section with horizontally-projecting flanges with turned-over edges.
Patent GB-188847-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/04
Filed: 1921-09-20
Abstract: 188,847. Button, E. A. Sept. 20, 1921. Vacuum cleaning-apparatus; bellows.-A handoperated vacuum cleaner comprises bellows operated by the horizontal motion of the handle to move the bellows immediately, and to move the body of the cleaner after an interval caused by its inertia ; the nozzle may move either with the body or with the bellows. In the form shown, in which air is drawn through n nozzle A and dust-bag B by double bellows having inlet and outlet valves F, G, the common diaphragm D of the two bellows is connected by pins to a lever J which is oscillated by a fork I on the handle E. A vertical link L supported from a cantilever N may give a parallel motion. In a modification, the levers J are pivoted on the base C. In a further modification, the nozzle is flexibly connected to the base box, and rigidly connected to the lever J by rods to which the fork II may be attached in various positions along their length. In this form of apparatus, a dummy may be substituted for the nozzle, while cleaning is effected through a nozzle on a long flexible hose. The supporting shoe M may be replaced by a castor.
Patent GB-1017072-A (GB)
Title: Improvements relating to the analysis of alloys and the like
Inventor: RIPPON KENNETH PHILIP
IPC: G06G7/75
Filed: 1961-07-10
Abstract: 1,017,072. Simulating networks. HILGER & WATTS Ltd. July 10, 1962 [July 10, 1961], No. 24955/61. Heading G4G. In a method of electrical analogue computation for determining the constituent proportions of alloying materials A1, A2 ... An in an alloy, the ratio values obtained from spectrographic readings of the ratios A1/B, A2/B ... An/B, where B is the base material of the alloy, are set up as parameters of a succession of elements in an electric circuit which contains a further element calibrated to represent a unity term, the whole circuit simulating the equation In the spectrographic analysis of an alloy, measurements are made over a given period of time of the average intensities of characteristic spectrum lines of the materials present, and using the measurement relating to the base material as a datum, the other measurements are expressed as ratios thereof. These ratios may be represented as potentiometer settings in a resistor chain energized from an adjustable source V (Fig. 1, not shown) the chain also including a fixed unity resistance. In operation the potentiometers are first set to zero and the voltage (V), which appears across the unity resistance, is adjusted to show a reading of say 100 v. on a meter connected across the resistance, so that thereafter voltages may be read off as percentages. When the potentiometers are set to their correct values R a , R b  ... R n  representing the ratios A1/ B  &c., then where V1 is the voltage across the unity resistance. The arrangement thus simulates (in inverted form) the required equation, and since V has been set to 100 v., by measuring the voltage V 1  a direct percentage reading of the proportion of base material present is obtained. In the circuit of Fig. 2 the potentiometers 24a ... 24n are set according to the measured ratios and are arranged in parallel with one another and with a constant resistance 20 of equal value to the resistances 20a ... 20n, which are in the tapping arms of the potentiometer. A summation unit 22 adds the voltages produced by this parallel arrangement and feeds this voltage to a high gain amplifier 28, where it is first subtracted from a preset applied voltage V before amplification. Calibration is carried out by adjusting the applied voltage V with all the potentiometer tapping arms grounded until the voltage reading across the resistance 20 is unity. With the potentiometers correctly set, the output voltage of the amplifier 28 is If A is chosen very large then an equation of identical form to that given previously.
Patent GB-443579-A (GB)
Title: Apparatus for applying adhesives to paper strips, labels and the like
IPC: B05C1/08
Filed: 1934-08-30
Abstract: <PICT:0443579/III/1> In apparatus for applying adhesives to paper strips, labels, &c. comprising an adhesive-applying roller 10 and two co-operating feed rollers 11, 12 journalled in open vertical slots 16, 17 in the side walls 13 of the apparatus, a guide bar 19 also mounted in vertical slots in the side walls is situated between the coating and upper feed rollers 10, 11 and serves to maintain the coating and lower feed rollers 10, 12 in position.  The bar 19 is provided with cross members 22 which project over and press upon the axle pins of the coating and lower feed rollers 10 and 12 when the guide bar is locked in position by moving laterally so that pins 20 on the bar engage in corresponding recesses in the side walls 13. The guide bar 19 is maintained in locked position by inserting in a notch in its upper edge a plate 21 which bears against a side wall 13 and prevents lateral movement of the bar. The coating roller dips into adhesive in a trough 23 mounted on rods 15 joining the side walls 13 and excess adhesive is removed by a scraper 28 mounted on an adjustable spring-urged lever 27 pivoted at P which also carries a curved shield 32.  The adhesive-coated label &c. is removed from the coating roll 10 by strippers 37 pivoted on a rod 36.  The coating and lower feed rollers 10, 12 are driven from a handle on the coating roller axle the motion being transmitted by an endless helically wound steel wire passing around two grooved pulleys.  A pivoted plate 31 is provided on the inlet side of the feed rollers.
Patent GB-1091812-A (GB)
Title: Flow control valve mechanisms
Inventor: JACKSON SQUIRE RONALD
IPC: F24F11/76
Filed: 1964-06-17
Abstract: 1,091,812. Valves. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 6, 1965 [June 17, 1964], No. 25030/64. Heading F2V. [Also in Division F4] A hit-or-miss valve suitable for use in storage heaters comprises two correspondingly apertured plates 17, 18, plate 17 being suspended from plate 18 by slings 22 and being movable by bi-metallic strips 19 sensing the temperature, e.g. in the heating compartment of a storage heater. Carbon blocks 26 carried by plate 18 pass through slots 25 in plate 17 to engage the front surface thereof to prevent relative movement of the plates transverse to their plane. One cable only may be used to support plate 17; alternatively the latter may be carried by the bi-mstallic strips engaging pivoted blocks 27 (Fig. 3, not shown) on plate 17. Fig. 1, not shown, shows the valve controlling by-pass air in a storage heater 10.
Patent GB-696377-A (GB)
Title: Improvements relating to cases for cigarettes or cigars
IPC: A24F15/14
Filed: 1950-10-14
Abstract: 696,377. Cigarette cases. SEEAR, A. H. Oct. 10, 1951 [Oct. 14, 1950], No. 25116/50. Class 18 Cigarettes or cigars are ejected singly from a case through a spring urged door 9. An ejector 11 is movable against the action of a spring 13 into a recess 19 in a wall 4 of the case, enabling a cigarette to fall to the bottom 5 of the case. On releasing a knob 14 the ejector is urged forward by the spring, projecting the cigarette partially through the door 9. Fillets 18 are fixed to the case to ensure that only a single cigarette at a time can lie on the base 5 and that it is correctly positioned.
Patent GB-1486921-A (GB)
Title: Darts and dart flights
IPC: F42B6/00
Filed: 1975-07-17
Abstract: 1486921 Darts CLARKE & MERRIFIELD Ltd 17 July 1975 [6 Aug 1974] 25148/74 Heading A6S  A dart flight assembly has at least three flight vanes attached to a stem terminating in an adapter made from a thermoplastics material and having a socket which snap-fits onto a spigot extending rearwardly from the rear of a dart body. In one form, a brass dart body 4, Fig. 1, has a tapered spigot 6 with a ring-shaped groove 7 to receive a correspondingly shaped rib 12 in a socket 8 at the end of a stem 9 made from polypropylene. A sheet of polyester material is folded to form three or four vanes 10 slidden into slots extending from the end of the stem. In another form, an adaptor 13, Fig. 4, having a socket, &c. 11 is attached to the end of a cane, &c. stem 15 carrying natural feathers 16. In a final modification, an adaptor 17, Fig. 5, having a socket 11. &c. has three steel pins 18 pushed into a bore at its rear, with a plastics sleeve 19 threaded over the pins. Flight vanes 20 are slotted between the pins.
Patent GB-447311-A (GB)
Title: Improvements in or relating to coupling devices for attaching hay sweeps to motor cars, lorries, tractors and like vehicles
IPC: B60D1/14
Filed: 1935-09-10
Abstract: 447,311. Draw - gear for vehicles. PANCOTT, A. J., and JARMAIN, Ltd., T. M., Haseley Iron Works, Great Haseley, Oxford. Sept. 10, 1935, No. 25172. [Class 103 (v)] A haysweep to be pushed by a tractor or other motor vehicle, is provided with eyes or loops 4 for loose engagement with deep slots 3 in the ends of brackets 2 carried in front of the vehicle. In the form shown in Fig. 1, the brackets 2 are riveted to the ends of a pair of channel bars 1 braced by one or more cross stays 12 and secured to the front axle 5 by bolts 6, 7 and plates 8, a number of bolt-holes being provided for adaptation to different axles. In Figs. 3 and 4, the brackets are carried by a U-shaped metal frame 13, twisted at 14 so that the real part may be flat for attachment to the axle 15 by bolts 16 and plates 17 and to diagonal stays 20 by U-bolts 21. The frame at the axle attachment 16 is reinforced by plates 19 and is spaced from the stays 20 by packing plates 23. The bottoms of the slots 3 may be of enlarged circular form to allow ample play of the loops 4 therein.
Patent GB-1144865-A (GB)
Title: Improvements in and relating to polymer dispersions with positive zeta potentials
IPC: C08F226/02
Filed: 1967-06-01
Abstract: 1,144,865. Copolymers of substituted N-vinyl amides. FARBWERKE HOECHST A.G. 1 June, 1967 [1 June, 1966], No. 25237/67. Heading C3P. An aqueous dispersion of a copolymer of a substituted N-vinyl amide is obtained by copolymerizing, in an aqueous medium at a pH of 3 to 9 and in the presence of a catalyst, at least one compound of the formula:- in which R 1  is alkyl, R 2  and R 3  are alkyl or together form a ring, and n is 1, 2 or 3, and one or more other monomers each having a polymerizable carbon-carbon double bond, the substituted N-vinyl amide(s) forming 0À1-4% of the polymerizable mixture of monomers. The specified amide is N-vinyl-N-(3<SP>1</SP>-dimethylaminopropyl)-acetamide, while exemplified comonomers are vinylisobutyrate, vinyl acetate, the vinyl ester of a mixture of monobasic branched aliphatic saturated carboxylic C 9 -C 11  acids, cyclohexane carboxylic acid vinyl ester, ptoluic acid vinyl ester, methyl acrylate, ethyl acrylate, methyl methacrylate, butylacrylate, and acrylonitrile. Other compounds present in the exemplified co - polymerization include trimethyl soybean oil ammonium chloride, oxyethylated nonylphenol, and polyvinyl alcohol.
Patent GB-714993-A (GB)
Title: A new or improved apparatus and method for the production of titanium metal
IPC: C22B34/12
Filed: 1952-10-08
Abstract: 714,993. Extracting titanium. TITAN CO., Inc. Oct. 8, 1952 [Oct. 18, 1951], No. 25255/52. Class 82 (1) Titanium is produced by reacting titanium tetrachloride and reducing metal, e.g. magnesium or sodium in a reaction and distillation zone and then opening the reaction and distillation zone to a condensing zone so that the residual products are distilled off leaving pure titanium in the reaction zone. In the apparatus shown, the reaction and distillation zone is formed by a reaction pot 19 mounted within a casing 10, the upper part 12 of which forms the condensing zone. The pot 19 comprises a stainless steel shell 20, which rests on the annular flange 27 of a base-plate 25, and an upper collar 20a having an upper inverted V-shaped flange 23. The upper part of the pot is closed by a thick cover 31 which is slidable on a feed pipe 36 and which has a conical protuberence 33 and a reverse flange 34 which co-operates with the flange 23 on the pot. In operation, the cover 31 is lowered on to the pot and magnesium reducing metal is introduced into the pot through the feed pipe 36 via an air lock 38. Titanium tetrachloride is then fed into the pot through a branch 37 in the feed pipe and the temperature of the furnace 44, in which the casing is mounted, is adjusted to control the reaction. As reaction proceeds, some magnesium chloride may be drained from the pot through a plug 29 to ensure maximum efficiency of titanium production. On completion of the reaction, the casing 10 is placed under vacuum via a conduit 17 and the cover is lifted by rods 40 to distil off the remaining magnesium chloride and any unreacted magnesium, which condenses in the upper part 12 of the casing. The reaction pot is then lifted out of the casing and the titanium removed. Specifications 632,564 and 702,771 are referred to.
Patent GB-483268-A (GB)
Title: Improvements relating to girders
IPC: E04C3/06
Filed: 1937-09-17
Abstract: 483,268. Making girders. DORTMUNDHOERDER HUTTENVEREIN. AKT.-GES. Sept. 17, 1937, No. 25286. Convention date, Nov. 7, 1936. [Classes 83 (ii) and 83 (iv)] [Also in Group X] Uniting by fusion.-A welded T- or I-girder consists of a flange rolled in the middle with a rib tapering on both sides and a web formed on the end face to the shape of a V-groove corresponding to the shape of the rib. The flange A is provided by rolling with a tapered rib a<1> and is rolled to anv width and thickness. The end face of the web B is shaped to the V-form b<1> by rolling or planing. Welding is effected at C. Webs of any desired thickness may thus be welded to flanges of any desired width and thickness. For I-girders flanges are welded to the opposite ends of a web.
Patent GB-591635-A (GB)
Title: A joint between a flexible metal conduit and a metal nipple
IPC: F16L33/26
Filed: 1944-12-16
Abstract: 591,635. Flexible pipes. SOLAR AIRCRAFT CO. Dec. 16, 1944, No. 25289. Convention date, Dec. 3, 1943. [Classes 99 (i) and 99 (ii)] A flexible metal pipe 10 is joined to a metal nipple 15 of thickness greater than the metal of the pipe and telescoped within the pipe by positioning a collar 16 also of thickness greater than the metal of the pipe upon the pipe end and welding the collar and nipple together by an annular welded fillet 17 fused to the collar nipple and pipe. The collar prevents the heat of welding from burning away the pipe end. The pipe as shown is of interlocking turns of sheet metal. A nipple may be joined to each end of a flexible pipe. The nipples may carry end fittings of various shapes.
Patent GB-253055-A (GB)
Abstract: 253,055. Chambers, W. March 16, 1926. Impact pulverizers. - Crushing or grinding apparatus comprises a resiliently - supported rotatable mortar and resiliently-supported rotary beating or pestle elements. The container or mortar 5 is supported and positioned by runners or rollers 4 in a frame 2 suspended with interposed springs 3 from a beam 1. The shaft 8 carrying the pestles or beaters 6 is preferably eccentric to the mortar and is carried in bearings 7 on vertical rods 7a slidably supported on the beam 1 by angle-brackets and springs 3, 9. The beaters 6 are carried by elliptically-disposed spring-stud arms 6<a>. The material is fed through the annular sideplate 10a of the mortar, and the crushed material escapes through the opposite side-plate 10, a lip 11 on the plate 10 facilitating the exit of the material. A casing 12a, communicating with the lowest part of the hopper into which the crushed material passes, encloses a rotary screen 12, a shoot 13 delivering the coarse particles into a receiver 14 while the particles that pass through the screen are collected at 15. The pestles 6 in contacting with and working on the mortar rotate the mortar on the rollers 4.
Patent GB-155941-A (GB)
Title: Improvements in, or relating to, hoes, spades, shovels, and other implements of a like character
IPC: A01B1/22
Filed: 1919-10-16
Abstract: 155,941. Perks & Sons, Ltd., J., Pougher, C. f., and Pougher, S. C. Oct. 16, 1919. Hand tools.-Implements such as hoes, spades, shovels, &c. of the kind having the handle, or a tang or socket on the handle, fixed to the blade by slitting and bending up strips or parts of the blade to form a socket, have a taper socket formed by pressing-up alternately in opposite directions a number of strips formed by parallel cuts of gradually decreasing length; the tang or handle may be serrated or toothed to engage the edges of the strips; and the socket may be cut and formed at one or two operations by a pair or pairs of dies having projections and recesses, the projections being formed on strips fixed in grooves in the die blocks. Figs. 1 and 3 show a hoe blade A having a taper socket formed by strips a, b pressed up alternately in opposite directions to receive the taper end c of the tang B which is to be fixed in the handle. The taper end of the handle itself or a metal socket thereon may be fixed in the socket formed in the blade A. Teeth d, Fig. 9, may be formed on the handle or tag to engage the inner edges of the strips a<1>, b' of the socket, and the strips may be specially formed or bent to facilitate the passage of the teeth under them and ensure the engagement of the teeth with their inner edges. Figs. 13, 14 and 15 show a pair of dies for cutting and forming the socket described. The block C of the lower die, Figs. 13 and 14, is formed with a longitudinal groove f of the form of the lower half of the outer surface of the socket, and strips i having projections i<1> are fixed in transverse grooves h by strips k in longitudinal grooves g. A projection m is formed in the block C to press up the inner part of the socket (Fig. 3) in conjunction with a corresponding recess t in the upper die. The upper die block D is formed with the longitudinal groove n and with transverse grooves in which the strips q are secured by side bars r and bolts s. The projections i<1> on the strips may be shaped to vary the form of the sockets to cause them to engage the teeth of the tang or handle as described with reference to Fig. 9.
Patent GB-417814-A (GB)
Title: Apparatus for moistening surfaces
IPC: B43M11/00
Filed: 1933-09-13
Abstract: <PICT:0417814/III/1> In an apparatus for moistening the gummed surfaces of envelopes, labels, &c., and of the kind in which water is fed from a container 1 to an elongated channel 4 over which the gummed surface is passed, a slotted guide plate 5 is resiliently and adjustably supported above the channel 4.  A suitable mounting for the guide plate 5 consists of an upright rod 8<a> surrounded by a helical spring 9 <PICT:0417814/III/2> and carrying a nut 8.  The surface to be moistened is passed between the upper part of the channel 4 and the underside of the plate 5, and a rider 10 may be provided to determine the width of the surface which is moistened.
Patent GB-248025-A (GB)
Title: A motor vehicle direction indicator
IPC: B60Q1/34
Filed: 1925-07-23
Abstract: 248,025. Butterworth, F. July 23, 1925. Road-traffic signals on vehicles.-A direction indicator for vehicles comprises a disc 1 carried by an arm 2 on a spindle 4 which is mounted in a sleeve 7 secured to the dashboard. The disc may be moved to the right or left by a handle 3 having a V-shaped projection 3<c> which engages recesses 7b to maintain the disc in its signalling positions.