baber/WOPTO huggingface dataset:
Patent GB-697856-A (GB)
Title: A motor vehicle internal combustion engine having an ignition and lighting dynamo set
IPC: H02K7/18
Filed: 1950-10-31
Abstract: 697,856. Dynamo-electric machines. NORIS ZUND-LICHT AKT.-GES. Oct. 31, 1950 [Oct. 31, 1949], No. 26584/50. Class 35. [Also in Group XXVII] In a motor-vehicle internal-combustion engine having an ignition and lighting dynamo set and a distributer, if required, the magneto 2, the lighting dynamo 1 and, if provided, the distributer, are arranged separate from but adjacent one another and mounted on the crank case 23 and covered by a common cover 15. Within the cover 15 is located ignition magneto 2 with a rotating H-shaped permanent magnet 7 and induction coil 9, the dynamo 1 and a regulator 3 fixed to the dynamo casing. The shafts of both machines are overhung, the magneto 2 being driven from a cam-shaft extension 19 and the dynamo 1 from a crank-shaft extension 18; the outer end of the magneto shaft embodies cams for operation of the interrupter 10 whilst a cooling fan 6 is secured to the outer extremity of the dynamo shaft: the fan 6 may be fixed to one of the other shafts. In a modification, the magneto and dynamo are each driven from a different crank-shaft of a multi-cylinder engine whilst the distributer is driven by the cam-shaft. The crank and cam-shafts may be connected to their respective machines by couplings, not shown.
Patent GB-266776-A (GB)
Title: Improvements in or relating to devices for facilitating the sharpening of safety razor blades, and to safety razors
IPC: B24D15/10
Filed: 1925-10-23
Abstract: 266,776. Salerni, P. M. Oct. 23, 1925. Razors of the kind having a thick-backed or wedge-section blade a to which a handle b is pivoted at or near the back edge of the blade to allow it to be turned towards either face of the blade are provided with a guard c pivotally mounted on the blade at c<1> and acted on by a spring-pressed ball d which tends resiliently to hold the guard centrally with respect to the blade edge. With the blade substantially in line with the handle for stropping &c. the guard is free to take this central position, Fig. 5, but when the blade is turned through approximately a right angle to either side for shaving a shoulder a<3> on a shaft a<2> rotated by the handle engages a pin c<3> on the guard and holds the guard displaced to a suitable shaving position, Fig. 6. The handle shown has a tubular part b<1> (which may contain grease or oil) slidably mounted on a member b<2> secured to a squared portion of shaft a<2> housed in the blade. Member b is urged towards the blade by a spring b3. When its end bears against the back of the blade, the blade is resiliently held in central position in line with the handle, Figs. 4, 5, and when the blade is turned through approximately a right angle member b bears against a face of the blade and holds it in shaving position, Fig. 6. The end of member b is inclined, or the guard may be non-centrally pivoted or resiliently held when the blade is in line with the handle, so that the guard is displaced different amounts according to the side to which the blade is turned, to vary the closeness of shave. The end of member b may be shaped to give a number of different angular adjustments by rotating it on member b<2> to one or other of a corresponding number of positions. When stropping or honing, the guard first contacts with the strop &c. and the edge of the blade is then brought into contact by pressure of the finger, Fig. 3. Reference has been directed by the Comptroller to Specification 265,244.
Patent GB-661016-A (GB)
Title: Attachable ashtray rest for holding a cigarette or a cigar
IPC: A24F19/00
Filed: 1950-11-01
Abstract: 661,016. Smokers' ash-trays. HOSKEN, H. WALLIS-. Nov. 1, 1950, No. 26623/48. Class 130. A cigarette or cigar rest comprises a support A, preferably curved and made of sheet metal, and a spring clip B having two legs adapted to clip over the wall of a receptacle D, the support and clip being either secured rigidly together, or, as shown, pivoted to enable the inclination of support to clip to be varied. U.S.A. Specification 2,032,536 is referred to.
Patent GB-457412-A (GB)
Title: Improvements in wheels and the like
IPC: B60B27/00
Filed: 1935-09-27
Abstract: 457,412. Roller bearings. ENGLISH NEEDLE & FISHING TACKLE CO., Ltd., and KING, G. B., Central Works, Studley, Warwickshire. Sept. 27, 1935, No. 26786. [Class 12 (i)] A loose wheel or pulley is mounted on a shaft 13 by cylindrical needle rollers 10 bearing on a race ring 11 having an outer sleeve 15 forming the hub of the wheel, the ends 18 of the sleeve 15 being bent inwardly to retain the rollers in position independently of the shaft 13. The sleeve 15 may be in one or more pieces. As shown the sleeve 15 consists of two plates pressed to forma pulley rim and provided with embossings 31, 35, forming a lubricant nipple and a lubricant passage 36. The ends of the rollers may be of cylindrical, conical, parabolic, ellipsoidal, spherical, or other rounded form. The race ring 11 may be formed from a strip bent into cylindrical form with the edges meeting in a butt joint of chevron form. In a modification the rollers are retained by annular plates 20, Fig. 4, having inturned lips 21, and these together with packing washers 25 are held in position by end caps 24 . The latter have slots 26 forming spring fingers so that a bead 27 thereon can snap into a groove 28. Alternatively each cap has an annular groove and snaps over a spring ring fitted in the groove 28. The packing ring 25 may be inserted between the ring 20 and the sleeve ends 18. In this case the outer edge of each ring 20 has an axially extending flange. The rings 20 may have an annular groove to accommodate the roller ends instead of being provided with the lips 21. Specification 457,411 is referred to.
Patent GB-823974-A (GB)
Title: Fluorine containing copolymers
Filed: 1956-09-03
Abstract: Metals, such as aluminium, and articles of protective clothing are coated with a copolymer of hexafluoropropane and vinylidene fluoride which is applied dissolved in a solvent such as ethyl acetate by conventional techniques such as spraying, dipping or brushing.  The coating may be built up by the application of several layers of the coating composition, each layer being permitted to harden by solvent evaporation before the next layer is applied.ALSO:Relates to copolymers of hexafluoropropene and vinylidene fluoride and to terpolymers of these monomers and up to 15 mol. per cent of a third monomer such as 1,1,3-trifluorobutadiene, 1,1,2,2-tetrafluoroethyl vinyl ether and 2,2,2-trifluoroethyl allyl ether.  Polymerization is preferably effected in aqueous emulsion in the presence of an organic or inorganic peroxide catalyst or a redox system and an emulsifying agent which may be potassium stearate, sodium oleate or potassium palmitate, or which preferably is the sodium or potassium salt of a halogen-substituted carboxylic acid which is at least half fluorinated and which has between 4 and 20 carbon atoms per molecule, such as perfluorohexanoic, perfluoro-octanoic, 3,5,6-trichlorooctafluorohexanoic and 3,5,7,8-tetrachloroundecafluorohexanoic acid.  The pH of the system may be from 2 to 10, preferably from 4 to 8, being maintained by the addition of a buffer such as disodium hydrogen phosphate and sodium metaborate.  Polymerization may also be effected in an organic solvent such as hexane, iso-octane, cyclohexane, benzene, toluene, methanol, t-butanol, dioxane, tetrahydrofuran, or preferably a fluorocarbon solvent such as fluorotrichloromethane.  Polymerization may be carried out in the presence of fillers such as titanium dioxide, copper and iron powder, mica and asbestos; the preformed polymer may also be mixed with these materials as well as with a high molecular weight polytrifluorochloroethylene to improve impact strength.  The molecular weight of the polymer product may be controlled by the presence or absence in the reaction medium of a modifier such as chloroform, 1,1,2 - trichlorotrifluoroethane, carbon tetrachloride, bromotrichloromethane, trichloroacetyl chloride and dodecyl mercaptan.  In an example the copolymer is vulcanized by heating under pressure with a mixture of benzoyl peroxide, disodium phosphite and zinc oxide.  Solutions of the copolymers in a solvent such as methyl, ethyl or butyl acetate may be used as coating compositions.
Patent GB-1397700-A (GB)
Title: Fuel injection system
IPC: F02M61/16
Filed: 1973-06-06
Abstract: 1397700 Fuel injectors CATERPILLAR TRACTOR CO 6 June 1973 [26 June 1972] 26996/73 Heading F1B A fuel injection system includes a fuel nozzle assembly having an annular leakage collection chamber 55 surrounding a housing 21 in which a valve chamber 31 has an inwardly opening valve 45 controlling fuel flow to the nozzle outlet, the valve having an area acted on by pressurized fuel within the valve chamber and having an opposing area acted upon by fuel in a low pressure chamber 35 which is connected to the leakage chamber 55. Pressurized fuel from line 19 passes via filter 44, recess 39, passage 40 into chamber 31. At a predetermined fuel pressure in chamber 31 the valve 45 unseats against spring 54 allowing fuel flow to the nozzle orifice. Leakage from chamber 31 between valve guide 46 and bore 51 passes via chamber 35 passages 34a, 36, groove 37 and port 38 to the leakage collection chamber 55. After chamber 55 is filled with fuel the pressure in chambers 55 and 35 increases so that some reverse leakage occurs when valve 45 closes to establish pressure equilibrium. Similar leakage into and out of the chamber then occurs thereby obviating any hydraulic blocking.
Patent GB-224901-A (GB)
Title: Improvements in and relating to lubricating oils
Filed: 1924-11-12
Abstract: Lubricating oils are obtained by distilling under high vacuum and with superheated steam high boiling fractions of mineral oils or of oils obtained by low temperature carbonization processes, in presence of small quantities of the following substances, alone or mixed:-oxides, hydroxides, or carbonates of alkalies, of alkaline earths, or of metals; salts of the so-called metal acids. Purifying agents particularized are oxides of barium, calcium, and aluminium, hydroxides of potash, barium, calcium, and aluminium, carbonates of calcium and barium and sodium ferrite, aluminate, or ferri-aluminate. In an example, 3500 kilograms of mineral oil residue of specific gravity 0.940 are mixed with 175 kilograms of solid caustic potash and distilled, starting at about 180-220 DEG  C. under a pressure reduced by 300 m.m., gradually rising to 400 DEG  C. and 710 m.m. reduction of pressure, superheated steam being introduced throughout. The products are 4.3 per cent of gas oil, 18.7 per cent of spindle oil, 27.5 per cent of light machine oil, 29.9 per cent of heavy machine oil, 9.5 per cent of cylinder oil, and an asphaltic residue. According to the Specification as open to inspection under Sect. 91 (3) (a), any substance binding components containing sulphur and oxygen can be used as the purifying agent, and the use of steam or reduced pressure is optional.  This subject-matter does not appear in the Specification as accepted.
Patent GB-654021-A (GB)
Title: Improvements relating to the construction of coffins and caskets
IPC: A61G17/00
Filed: 1948-10-19
Abstract: 654,021. Coffins or caskets. INGALL, PARSONS, CLIVE & CO., Ltd., and PURVES, W. A. Oct. 19, 1948. No. 27080, [Class 18] [Also in Group X] A joint between the vertical wooden side panels of a coffin or casket comprises bevelled edges having each a longitudinally extending tongue and groove, the tongue of one panel entering the groove of the other and vice-versa. The joint may be further secured by glue.
Patent GB-626628-A (GB)
Title: Improvements in or relating to machines for grinding the teeth of bevel wheels
IPC: B23F5/02
Filed: 1945-10-16
Abstract: 626,628. Truing grinding wheels. MORRIS, J. Oct. 16, 1945, No. 27081. [Class 60] [Also in Group XXII] A machine for grinding straight toothed tooth of a batch of bevel of a flat-faced grinding wheel (see Group XXII) is provided with means for truing the face and edge of the wheel. A control shaft for the reciprocating drive of the wheel head 51, Fig. 4, drives a shaft 246 through gearing which rotates the shaft every third rotation of the control shaft and thus operates the automatic wheel truing mechanism after every third tooth has been ground. One tooth face only of each tooth of a batch of bevel wheels is ground in a first operation, the wheels being passed again through the machine with the grinding wheel oppositely arranged to grind the other tooth faces. The shaft 246 is connected through a universal joint to a shaft 249 which is provided with a face cam for rocking a lever carrying an adjustable tappet screw 253 at one end. This tappet bears against the end of a slidable rod 254 which at its other end supports a face-truing diamond 255 carried in an adjustable holder 271. A further cam on the shaft 249 operates ratchet mechanism to feed the horizontal slide 131, Fig. 6, carrying the grinding wheel in a transverse direction a distance equal to the amount of truing which is to be made. The housing for the wheel-truing mechanism is carried on a vertically adjustable slide 248. A bracket 275 oscillatable about the axis of the rod 254 carries a rod 284 which is rotated first about the axis of the rod 254 and then about its own axis by means of a hand lever 283 and lost-motion device. The rod 284 carries a further wheel-truing diamond 286 which thus shapes the edge of the wheel 56. The diamond 286 and its support are replaced by similar devices of opposite hand when the .grinding wheel is oppositely arranged and the rod 254 is then turned through a half rotation and keyed in position to operate again on the side face of the re-positioned wheel. To set up the truing diamonds correctly a disc is mounted on the grinding wheel spindle and its face adjusted by means of a mandrel, the diamonds then being adjusted to the disc by means of feeler gauges. Vertical adjustment of the grinding wheel is effected by a handwheel 130, Fig. 6, which adjusts the wheel and simultaneously moves the wheeltruing slide 248 downwardly through twice this distance in order that the wheel may be trued for its correct depth. A modified entirely hand-operated wheel-truing device is also described.
Patent GB-1420428-A (GB)
Title: Process for preparing perfluorononanes
IPC: C07C67/00
Filed: 1974-06-19
Abstract: 1420428 Perfluorononanes HOECHST AG 19 June 1974 [23 June 1973 2 March 1974] 27144/74 Heading C2C Perfluorononanes, C 9 F 20 , are prepared by reacting a perfluorononene, C 9 F 18 , in the liquid phase with F 2  at - 40 to + 120‹ C., preferably + 20-+ 70‹ C. in the absence of diluents. The novel compounds perfluoro-2-methyl-3-isopropyl-pentane, perfluoro-2,3-dimethyl-3-ethylpentane and perfluoro-2,4-dimethyl heptane are prepared.
Patent GB-866793-A (GB)
Title: Improvements in or relating to axial flow compressors
IPC: F04D19/02
Filed: 1957-08-29
Abstract: 866,793. Axial-flow compressors. SOMMARIVA, G. B. Aug. 29,1957 [Sept. 1, 1956], No. 27211/57. Class 110 (1). Each rotor or stator blade of an axial-flow compressor has a thick inlet portion with a convex leading edge 5<SP>1</SP>, a convex surface 9 merging smoothly into the leading edge 5<SP>1</SP> and into a flat surface 10 which is substantially normal to a plane at right angles to the rotor shaft, and a substantially flat surface 11 merging smoothly into the leading edge 51 and into a concave surface 12 which in turn leads into a straight portion 13 which converges towards the surface 10. The relative velocity w 1  at the inlet to each row of rotor blades 5, 6 is parallel to the tangent a, b drawn at the inlet throat l 1 , and the relative outlet velocity w 2  is parallel to the tangent c, d at the outlet. The velocity c 2  at the inlet to the following row of stator blades 7, 8 is parallel to the tangent e, f drawn at the inlet throat l 3  and the outlet velocity is similar in direction to the absolute velocity c 1  at the inlet to the rotor blades 5, 6. The rotor and stator passages diverge downstream of the respective throats l 1  and l 3  so that the velocity decreases.
Patent GB-1205511-A (GB)
Title: Improvements in and relating to cathode ray tube assemblies
Inventor: VENIS RONALD JOHN
IPC: H04N5/84
Filed: 1968-06-07
Abstract: 1,205,511. Cathode - ray display tubes. COLOUR FILM SERVICES Ltd. 7 June, 1968 No. 27270/68. Heading H1D. [Also in Division H4] In a system for recording television images on colour motion picture film wherein three separate cathode-ray tubes produce picture images in the red, green and blue portions of the spectrum respectively and the light from these tubes is combined before it falls on the film, the cathode-ray tubes are carefully aligned and located in position in the optical system to prevent distortion. The electronic axis of each tube is arranged to be coincident with the optical axis of the system, and the alignment of the apparent phosphor plane of each tube is ensured, by the provision of a collar c secured by adhesive A to the tube, which collar serves as a reference surface s to accurately locate the tube in its support housing H by mating with a reference surface I on the support. As the electronic and geometric axes of the tube do not coincide the focus and deflection coils are mounted on special mountings M to allow them to be adjusted so that their axes are coincident with the electronic axis.
Patent GB-1139575-A (GB)
Title: Stabilised mixtures containing trialkanolamines and halogenated hydrocarbons
Inventor: WOOD JOHN FRANCIS
IPC: C08G18/28
Filed: 1965-06-28
Abstract: 1,139,575. Polyurethane foams. IMPERIAL CHEMICAL INDUSTRIES Ltd. 14 June, 1966 [28 June, 1965], No. 27275/65. Headings C3C and C3R. Polyurethane foams are prepared by reacting an organic polyisocyanate with a polyol having a molecular weight of at least 300 in the presence of a trialkanolamine, a halogenated hydrocarbon and 0.1 to 5% by weight of the trialkanolamine and halogenated hydrocarbon of a thiobisphenol. The trialkanolamine halogenated hydrocarbon and thiobisphenol are suitably mixed together and then added to the polyisocyanate and polyol or, if desired, they may be mixed with the polyol and the resulting mixture reacted with the polyisocyanate. Suitable polyisocyanates are the tolylene diisooyanatea and 4,41-diphenylmethane diisocyanate. The exemplified polyol is an oxypropylated trimethylolpropane. Examples of trialkanolamines are triethanolamine, triisopropanolamine or the reaction products of propylene oxide with mono- and diethanolamine. The halogenated hydrocarbon preferably has a b.p. not exceeding 75‹ C., e.g. methylene chloride, vinylidene chloride and particularly compounds containing at least one fluorine atom per molecule. Preferred thiobisphenols are 2,21-thiobis-(6-methylphenol), 2,2<SP>1</SP>- thiobis - (4 - methyl - 6 - tert.- butylphenol) and 4,4<SP>1</SP>-thiobis-(3-methyl-6-tert.- butylphenol). The foam forming reaction mixture may also contain e.g. water, catalysts, surface-active agents and flame retardants.
Patent GB-1448798-A (GB)
Title: Automatic frequency control arrangement
IPC: H03J7/06
Filed: 1974-06-20
Abstract: 1448798 AFC systems; tuning arrangements INTERNATIONAL STANDARD ELECTRIC CORP 20 June 1974 [3 July 1973] 27381/74 Headings H3A and H3Q In a superheterodyne receiver, the AFC loop for a local oscillator 5 comprises a resettable counter 9 for counting the output signals from oscillator 5, an adder 11 for adding the instantaneous output of the counter 9 to a constant value K determined by circuit 10, a comparator 12 for comparing the output of adder 11 with a predetermined value S set by a tuning arrangement 4, 19 and to provide a signal when equality is reached, which is applied to reset the counter 9 as well as to control the oscillator 5 via a frequency discriminator 13. The values K, S are representative of the I.F. and transmitted frequencies respectively. Any variation of the oscillator frequency alters the frequency f A  of the reset pulses and an error voltage produced by the combination of a wave shaper 17 and frequency discriminator 13 controls a varactor 26 in the oscillator 5. A fixed divider 51 may be arranged to connect the oscillator to a counter 9 including decade counters 28-30 producing BCD coded outputs. The outputs of the adder stages 31-33 are applied to respective comparator stages including BCD-decimal converters. A tuning element 4 includes a voltage divider 50 and a preselection switch 40 for stepwise tuning of the oscillator 5 and for setting up the corresponding values of S in the comparator stages. The decade switches 19 may be replaced by coincidence circuits.
Patent GB-426949-A (GB)
Title: Improvements in devices for the handling of bulk material
IPC: B65G65/00
Filed: 1933-10-05
Abstract: 426,949. Endless-belt conveyers. WHITE, J. W., Railway Works, Widnes, Lancashire. Oct. 5, 1933, No. 27388. [Class 78 (i)] A scraper for feeding bulk material such as coal, earth, sand, or grain from a heap on to an endlessbelt conveyer 7 comprises a scoop 1 on a pivoted arm 2 which is reciprocated along a guide 4 by the connecting rod 14. At the upper end of its stroke the arm 2 is raised into the position shown by the engagement of an arm 16 with a stop 17 and is latched by a pawl 18. The arm then returns in the elevated position and at the bottom of the guide 4 the pawl is released and the arm falls under gravity into the heap of material and is then dragged forward again. Auxiliary scoops 20 may also be provided, and several arms may be mounted on the pivot 3.
Patent GB-644985-A (GB)
Title: Improvements in electron guns
IPC: H01J29/48
Filed: 1945-10-18
Abstract: 644,985. Cathode-ray tubes. SYLVANIA ELECTRIC PRODUCTS, Inc. Oct. 18, 1945, No. 27404. Convention date, Nov. 29, 1944. [Class 39 (i)] An electron gun comprises a tubular cathode 1 closed at one end by a cap 2 having a flat thermionically emitting portion and provided at its open end with a flat annular flange 3 ; a heater unit 10 enclosed by the cathode ; a cup-shaped grid electrode 5 surrounding the cathode and having a disc portion 6 with an aperture 7 aligned with the flat portion of the cathode and diametrically opposed tabs 8 and 9 ; two axially aligned ceramic discs 21 and 22 between which the cathode flange 3 is tightly held, one of said discs 21 having a central opening forming a tight fit around the cathode and the other of said discs 22 having attached thereto pairs of metal straps 13, 14 and 15, 16 attached to the terminal legs 11 and 12 of the cathode heater 10 ; and cylinder 17 with annularly flanged shield 18 and retainer ring 19 with flange 20 clamping together the discs 21, 22 and cathode flange 3. The shield 18 has a conical extension 18a and a centrally apertured flat portion 18b. The cathode tab 23 is welded to the cathode flange 3. Other gun electrodes may be mounted above and attached to the grid electrode. The grid electrode 5, 6 and the cathode unit formed of the remaining members are relatively positioned by inserting a fixed length of the gauge pin of a micrometer dial gauge through the aperture 7 of the grid disc 6, pushing the cathode unit into the grid cylinder 5 to engage the flat cathode end with the free end of the micrometer gauge pin and continuing pushing the cathode unit into the grid cylinder until the micrometer dial indicates a desired depth of the gauge pin within the grid aperture and welding the grid cylinder 5 to the cylinder 17.