baber/WOPTO huggingface dataset:
Patent GB-580634-A (GB)
Title: Improvements in electric circuit breakers
IPC: H01H33/18
Filed: 1944-07-15
Abstract: 580,634. Switches, partly electromagnetic. COOKE & FERGUSON, Ltd., and BUTTREY, R. N. July 15, 1944, No. 13561. [Class 38 (v)] A movable-rod contact a slidable in a contact b and co-operating with a circuit-interrupting socket contact c, is screened against the electrodynamic blow-off effects x of the current-loop, by means of a magnetic ring d wholly or partly surrounding contact c and a part-ring e associated with the contact b,
Patent GB-437747-A (GB)
Title: Improvements in and relating to rheostat arrangements, suitable for use as lamp dimmers
IPC: H05B37/02
Filed: 1934-05-04
Abstract: 437,747. Regulating switches. GEIPEL, Ltd., W., and PELL, W. GUY-, 156, Bermondsey Street, Bermondsey, London. May 4,1934, No. 13593. [Class 38 (v)] A rheostat suitable for use as a lamp dimmer for theatres &c. comprises two plates 1, 2 carrying respectively rows of contact studs 4, 4<a> and 5, 5<a> connected to resistance units 6 and engaged by insulated brushes 7, 8 on a hand lever 9 loosely mounted on a shaft 10. The rows of studs 4, 4<a> on the plate 1 are staggered with respect to each other and to the studs on the plate 2 and vice versa. The rheostat may be connected up so that the four rows of contact studs are in series with each other as shown in Fig. 3. Or a series-parallel switch may be added, Fig. 4 (not shown), enabling the two pairs of rows to be connected in circuit separately or in series or in parallel thus making the rheostat suitable for circuits of varying wattage. In alternative arrangements Figs. 5 and 6 (not shown), row 5 is replaced by a continuous contact bar, the brushes 7, 8 are electrically connected and the rows 4, 4<a> and 5<a> are controlled by three switches which are connected to the main lamp circuit or to individual lamp circuits. In the arrangement shown in Fig. 7, there are three rheostats, each controlled by a handle 9, mounted on each of three shafts 10. The rheostats may be operated individually or they may be coupled to their shafts 10 so as to be operated by master handles 15, and the master handles 15 may each be coupled to a crank 20<a> or 21<a> so as to be rotated by the up or down movements of two rods 22, 23 which are actuated through the medium of cranks 25<a>, 24<a>, 25, 24, the two last of which are pivoted to a nut which is moved longitudinally by the rotation of a screw 28<a> controlled by a grand master handle 29. Specification 408,644 is referred to.
Patent GB-1096595-A (GB)
Title: Improvements in or relating to laser devices suitable for wide-band communication
IPC: H01S3/098
Filed: 1965-03-31
Abstract: 1,096,595. Lasers. NIPPON ELECTRIC CO. Ltd. March 31, 1965 [July 20, 1964], No. 13628/65. Heading H1C. The output of a laser is controlled by preventing the generation of more than one transverse mode of each order. In a gas laser a mode control plate 15 is provided at a distance a from the laser axis 13 and between the laser tube and one of the cavity mirrors. By preventing formation of an upper beam 18, the formation of the lower beam 18, of the same order and symmetrically disposed with respect to axis 13, is also prevented. A virtual mode control plate 15<SP>1</SP> is thus effectively provided, leaving a slit 16 of width 2a. The distance a is selected so that passage of only one of the transverse modes of each order is possible. Beams 17 are of the same order as beams 18 which are blocked. It is stated that spatially independent modes of the same order e.g. TEM 02 , TEM 11  and TEM 20  tend to oscillate at slightly different frequencies so that wide band communication using the laser beam becomes difficult, whereas elimination of, say, modes TEM 11  and TEM 20  removes the adjacent frequencies without substantially attenuating the output. Instead of a plate 15 non-reflective portions may be formed on one of the cavity mirrors, or opaque portions may be formed on the Brewster windows of a gas laser. Spherical mirrors having the same or different radii of curvature may be used for the resonator, or one may be a plane mirror.
Patent GB-136830-A (GB)
IPC: B31B160/10
Abstract: 136,830. General Paper Goods Manufacturing Co., (Assignees of Ekvall, C. O.). June 30, 1916, [Convention date]. Tripping-arrangements. - A machine for applying transparent patches to window-envelope blanks comprises means for transferring a blank from a pile to a table, means for feeding the blank over the table, an adhesive picker for removing a patch from a pile, and means for stripping the patch from the picker and applying the patch to the blank while the blank is moving over the table. The top blank is transferred to the feed-rollers 82, 90 by means of a suction tube 50, provided with a chamber which is carried by a rock-shaft and is connected by a flexible tube to a pump arranged in the base of the machine. The tube 50, whilst under suction, raises the front corner of the blank, and the blank is then detached by placing the tube under pressure. The pump-barrel is mounted at the bottom on a pivot and is provided with a piston which is operated by an eccentric. The out-stroke of the piston is effected whilst the suction tube 50 is rising, and at the in-stroke, the blank is blown off the suction tube. A manually-controlled device may be provided for preventing blanks from being fed from the pile, and such device may be adapted to be operabsd automatically when a blank becomes crumpled or torn in passing through the machine. In the device, shown in Fig. 23, a hand-lever 225 is adapted to operate a valve arranged in the tube that connects the suction tube 50 to the pump. The valve consists of a revoluble sleeve mounted on a stationary sleeve arranged in the connecting- tube, the sleeves being formed with apertures which are normally out of coincidence. The hand-lever is secured to a. shaft 224 which is connected bv a link 235 to an arm 234 on the revoluble sleeve. When the hand-lever is rocked, the apertures in the sleeves are brought into coincidence and the suction tube 50 is thereby prevented from feeding a blank. For automatic action, the crumpled or torn blanks are arranged to lift a contact lever 243 and thereby close a contact 244 on a member 241 which is in circuit with an electro-magnet 223. The armature 223<a> of the electro-magnet is thereupon released from a latch 237, carried by a voke 236 on the shaft 224, and a spring rocks the shaft and operates the valve in the manner described above.
Patent GB-406375-A (GB)
Title: Improved means of testing vehicle brakes
IPC: G01L5/28
Filed: 1933-04-28
Abstract: 406,375. Testing vehicle brakes dynamometrically. ASHFORD, F. T., Ashridge, near Chesham, Buckinghamshire. April 28, 1933, No. 13873/32. [Class 106 (ii).] The vehicle is run on to a plurality of individual wheel supporting plates each adapted to be reciprocated by a separate rod D while a common transverse balance bar C is adapted to be coupled selectively to any or all of the rods a single power device J being pivotally connected to the bar so as to actuate the latter and any rods coupled to it. The power unit J comprises a double-acting cylinder and piston connected to the outside reciprocating frame G by a trunnion the frame G being connected to the balance bar C by a pivoted link K. A sliding plate (not shown) having castellations is passed through a slot B in the bar so as to miss or pick up corresponding castellations on the rods D. The vehicle is anchored during the test, the pressure of air in the cylinder noted, the tilt of the bar C indicating any inequality in a pair of brakes which may then be adjusted.
Patent GB-349272-A (GB)
Title: Improvements in or relating to devices for driving rotating tools such as screw-drivers, drills and the like
IPC: B23Q5/04
Filed: 1930-05-06
Abstract: 349,272. Attachment for drilling and for screwing-up screws &c. STOLL, A., Waldshut, Germany. May 6, 1930, No. 13895. [Class 83 (iii).] A hand braking device for a mechanically driven screw driver, or like tool. comprises an epicylic gear enclosed within a smooth drum and interposed between the driving and driven parts. A pinion 11 keyed to a driving shaft 12 drives through planet wheels 13 and internally toothed rim 14 either the drum 3 or tool carrying part 5a. according to which of the latter is braked ; an increased braking of the drum 3 causes increased rotation of the tool 8. The driving shaft and tool are interchangeable so that by altering their positions a different gear ratio is obtainable. Increased braking effort may be obtained by a clamp.
Patent GB-807348-A (GB)
Title: Hydrokinetic torque converters
Inventor: WILKS MAURICE FERNAND CARY
IPC: F16H41/26
Filed: 1956-05-05
Abstract: 807,348. Hydraulic torque converters. ROVER CO. Ltd. July 12, 1957 [May 5, 1956], No. 13981/56. Class 69 (2). A turbo converter has a reaction member i comprising a number of rotors a which deflect the liquid flowing through the reaction member by virtue of the Magnus effect. As shown, each rotor is rotated by means of a pinion j engaging an annular rack k on the turbine h. Alternatively the rack may be provided on the pump g. A fixed or pivoted guide blade f may be provided on the downstream side of each rotor. The rotors may be cylindrical or formed as any other suitable figure of revolution.
Patent GB-1344284-A (GB)
Title: Swimming ring for the upper arm
IPC: B63C9/15
Filed: 1971-05-10
Abstract: 1344284 Inflatable arm rings H BAUERMEISTER 10 May 1971 [11 May 1970 2 Sept 1970] 14068/71 Heading B7U  Inflatable arm rings are provided with reserve buoyancy to keep a swimmer afloat in the event of a puncture. The reserve buoyancy may be provided by a second inflatable ring coaxial with the first, or by rings, or part rings, of solid buoyant material. Figs. 7 and 8 (not shown) illustrate an inflatable ring partly filled with small buoyant balls. The inflated ring is of truncated spheroidal shape.
Patent GB-260313-A (GB)
Title: Improvements in the manufacture of building blocks, slabs, floors, ceilings, tiles and the like
IPC: C04B28/10
Filed: 1925-05-29
Abstract: 260,313. Melandri, J., and Spun Concrete Construction Co., Ltd. May 29, 1925. Stone, hardening.-Building blocks, &c., are moulded from a mixture of fibrous material such as peat or sawdust and cement containing lime or to which lime has been added, and are then treated with dilute sulphuric acid to promote the setting of the composition. Surplus acid may be subsequently removed by washing.
Patent GB-709044-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B71/00
Filed: 1952-06-05
Abstract: 709,044. Lubricating. HESS, O. June 5, 1952 [June 8, 1951], No. 14197/52. Class 12(3) [Also in Group VII] In a sewing-machine with an oil reservoir below the sewing unit and with pressure lubrication, in order to keep oil from the work and the stitchforming devices, to keep dust and fluff from the oil, and to prevent transmission of vibration to the reservoir the base of the machine rests on elastic oil-resisting packing on the upper edge of the reservoir and is clamped thereon by a screw which is sealed in relation to the base of the machine, and the reservoir is mounted on elastic cushions . in an aperture in the table supporting the machine. In the embodiment shown, the reservoir 2 rests on a rubber or other elastic cushion 10 at each corner in an aperture in the table 8 supporting the machine, the cushions 10 entering recesses in the table. The base 22 of the machine 1 has a flange which rests on rubber or other elastic oil-resisting packing 12 carried in a recess in the upper edge of the walls of the reservoir 2; in one form, the flange of the machine base is formed with peripheral grooves forming a rib between them for sealing contact with the packing. The machine is fixed to the reservoir 2 by a screw 16 which passes through a cylinder 28 of elastic oil-resisting material mounted on the base 22. and through a clearance hole in the base, the head of the screw resting on the cylinder 28; in a modification the cylinder 28 is replaced by a bushing in the hole in the base 22, and a spring is placed between the head of the screw and the bushing. A pump 3 draws oil from the reservoir and delivers it to various parts of the machine; the base of the reservoir is made convex at 21, beneath the pump, so that any solid matter slides down away from the pump inlet. The bottom of the reservoir 2 slopes away from the pump to a drain-plug and is formed with ribs to guide the oil to the plug and prevent return movement 'of impurities. The base 22 of the machine is similarly inclined and is formed at its lowest point with an aperture containing a filter through which oil dripping from the machine into its base returns to the reservoir 2. The outer surface of the reservoir is formed with fins over which air, indrawn by the driving motor 4, flows to cool the oil.
Patent GB-818159-A (GB)
Title: Improvements in forced flow, once-through vapour generating and vapour heating units
IPC: F22G5/14
Filed: 1956-05-08
Abstract: 818,159. Forced-flow steam boilers. BABCOCK & WILCOX Ltd. May 8, 1956 [May 9, 1955], No. 14228/56. Class 123(2) In a forced-flow, once-through steam generator which may operate at supercritical pressure, a feed pump 7 supplies water to an economizer 6 whence it flows serially through radiantly heated furnace tubes 1, wall tubes 3 of a convection pass and a heating tube section 5 disposed in the pass wherein it is brought to a point at which it has received the major portion of the heat required to effect vaporization. From the section 5 steam-water mixture  flows into a direct contact heat exchanger 10, disposed outside of the heating gas flow path, in which it is mixed with sufficient superheated steam to complete vaporization and produce a limited degree of superheat. The steam, containing suspended solids in a form in which they can be carried through the remainder of the tube system without deposition, flows from the exchanger 10 through primary and secondary superheaters 4, 2, to the final outlet header 13. Superheated steam entering the heat exchanger 10 is withdrawn between the superheating stages by a pump 12 which delivers it to the heat exchanger.
Patent GB-673082-A (GB)
Title: New synthetic drying oils and coating compositions
Filed: 1949-05-27
Abstract: Synthetic drying oils are prepared by a process comprising heating a trihydroxy or tetrahydroxy saturated alcohol with a fatty acid of the formula R-CH=CH-CH2-COOH, where R is an alkyl radical containing from 1-7 carbon atoms, or an ester-forming derivative thereof, to produce an ester in which there are substantially no unreacted hydroxyl or carbonyl groups. In examples: (1) glycerol is heated in a pyridine/chloroform mixture with 3-pentenoyl chloride; (II) pentaerythritol is treated by the method of example (I) with 3-pentenoyl chloride; (III) glyceryl tri-3-hexenoate is prepared by a similar method to that of example (I); (IV) pentaerythritol is esterified directly with 3-hexenoic acid in the presence of p-toluene sulphonic acid under carbon dioxide; (V) pentaerythritol is esterified with trimethyl octenoic acid by a similar method to that employed in example (IV).  Solvents are removed under reduced pressure and the products converted to stand oils in examples (I), (II) and (IV) by heating under carbon dioxide.  Cobalt octoate is added to the products as drier, xylol being employed as a thinner in examples (I), (II) and (IV), and films are obtained by stoving or standing in air.
Patent GB-456976-A (GB)
Title: Improvements relating to centrifugal compressors
IPC: F04D21/00
Filed: 1935-05-16
Abstract: 456,976. Centrifugal compressors. WHITTLE, F., Blackamoors, Harston Road, Trumpington, Cambridge. May 16, 1935, No. 14285. [Class 110 (i)] In a centrifugal compressor of the kind in which a rotary impeller raises the pressure of a fluid, and means are provided for converting the kinetic energy of the fluid leaving the impeller into further pressure energy, two fluid intakes 16, one on each side of the plane of rotation of the impeller 10, are provided, and the fluid is discharged through a primary radial bladeless diffuser 19 into a secondary diffuser 51 which may consist of a diverging passage leading away from the scroll 20. In another form, the secondary diffuser is provided with or constituted by a series of guide vanes in the outer part of the diffuser 19. The impeller carries at least twenty blades 11, which may be integral with the boss 10 and have integral buttress ribs 12 on the rear faces. The boss 10 may be of light alloy such as aluminium alloy or magnesium alloy. The casing consists of two parts 13, 14 joined at the periphery by flanges 15 and carrying the circular intakes 16. The two walls of the intakes are held together by ribs 17. The boss of the impeller is attached to shafts 22, 23 by means of radial splines 26 engaging slots 25 in flanges 24 on the shafts, and by means of spigots 32 on the shafts entering recesses in the boss. These impellers may be mounted on a composite shaft, the intakes of the middle one being connected to the secondary diffusers of the outer ones. Specifications 347,206, [Group XXXIII], 347,766 and 456,980, [Group XXXIII], are referred to.
Patent GB-375943-A (GB)
Title: Improvements in lighting apparatus for operating tables
IPC: F21S8/00
Filed: 1931-05-14
Abstract: 375,943. Lamps for illuminating operating tables. CROS, R. L., 12, Rue Chartran, Neuilly-sur-Seine, France. May 14, 1931, No. 14346. Convention date, May 17, 1930. [Class 75 (iv).] In a lamp for illuminating operating tables comprising a light source at the focus of an optical system for producing a beam of parallel rays which are dispersed and then concentrated on the operating field, the light source is placed at a considerable distance above the diverging reflector which is arranged adjacent the lower end of a tube through which the parallel beam is adapted to pass. In the form shown in Fig. 1, an electric lamp bulb 2 is associated with a parabolic reflector or a spherical reflector 4 and a lens 5 at the upper end of a tube 3, the parallel rays being directed outwardly by a reflector 6 on to a concentrating reflector 7. The tube 3 may be formed with cooling flanges 31, it may be surrounded by a liquid jacket or by an open-ended tube 9 for promoting air circulation, and it mav contain a parallel-sided water vessel or a plate 10 of heat-absorbing glass. The light source may comprise several bulbs, some being supplied from the mains and others from an accumulator, the latter bulbs being automatically brought into position upon failure of the mains supply. In the form shown in Fig. 3, the bulb 2 is placed at the common upper focus F<1> of two ellipsoidal reflectors 11, 12 of different curvature, the common lower focus F<2> coinciding with the focus of a converging lens 5, the parallel rays being directed outwardly by annular prisms 6<1> surrounded by a cylindrical heat-absorbing glass 10<1>. The reflectors 11, 12 are housed within a cylindrical part 14 having ventilation openings 15, 16 and a lateral opening 17 to give access to the bulb.
Patent GB-123017-A (GB)
Title: Means for Improving the Conductivity at the Joints of Electrodes for Electric Furnaces.
Inventor: KAYSER CHARLES WILLIAM
IPC: H05B7/14
Filed: 1918-09-04
Abstract: 123,017. Kayser, C. W., and Macdonald, D. W. Sept. 4, 1918. Couplings.-In joining sections d, d<1> of a furnace electrode by a screw plug c, a resilient metallic washer a is compressed between the ends of the sections. The washer a may consist of a plate with tongues a<1> punched out from it or attached to it on one or both sides by riveting, welding, brazing, &c. Copper is the preferred metal The conductivity at the joint may be further improved by the use of molasses.
Patent GB-688928-A (GB)
Title: Improvements in or relating to electric sockets adapted to co-operate with two-pin lamp caps
IPC: H01R33/08
Filed: 1950-06-09
Abstract: 688,928. Lamp-holders. GENERAL ELECTRIC CO., Ltd., and HUBBOLD, S. April 9, 1951 [June 6, 1950], No. 14454/50. Class 38 (i). A socket for a fluorescent lamp having at each end a pair of contact pins preferably provided with shaped heads as disclosed in in Specification 688,920, comprises contact-strips 10 whose pin-engaging portions 14 are twisted through 90 degrees whereby the narrow edges of the strips bear against the pins and better electrical contact is assured. The strips 10 are resiliently held in the insulating body 1 by projections 11, 12, 13, the body having a recess 6 divided by a wall 9 and a cylindrical stud 4 supported by the wall within an opening 2. The lamp pins are introduced along a slot 3 and the lamp then rotated until the pins engage in depressions 15. Insulating tips may be moulded in eyes 21 in the strips 10. The strips are so bent that the broad front face of the twisted portion 14 is in line with the front narrow edge of the remaining portion, whereby space is provided in the socket behind the strips for the reception of the shaped heads of the lamp pins. The socket is closed by a cover fixed by pins in holes 16.
Patent GB-952322-A (GB)
Title: Improvements relating to epoxy resins
Inventor: FRENCH ERIC LIONEL
IPC: C08G59/38
Filed: 1959-04-28
Abstract: A hard resin is obtained by mixing together an epoxy resin, viz. a polyglycidyl ether of a polyhydric phenol, an epoxidised vegetable oil and a curing agent soluble in the epoxy resin, wherein the proportion by weight of the oil to the resin is in a ratio not greater than 60:40 and the curing agent is a mixture of an amide and the related imidazoline derivative derived from a carboxylic acid (R.COOH) or its amide forming derivative and a polyamine, in which the R group of the acid is an alkyl or alkenyl group of at least 10 C atoms and may contain amide, ester, ether or epoxy groupings, and the polyamine has the formula H(NH.CH2.CH2)nNH2, in which n=2 to 5. The epoxidised oils include all akyl esters of the vegetable oil acids which have been epoxidised, e.g. by treatment with H2O2 in the presence of formic or acetic acid. Suitable curing agents are: (1) C17 H31 CONH. CH2. CH2 NH. CH2 CH2 NH. CH2. CH2. NH2. <FORM:0952322/C3/1> <FORM:0952322/C3/2> <FORM:0952322/C3/3> <FORM:0952322/C3/4> and the complex mixtures of epoxidised oils with polyalkylenepolyamines described in Specification 811,797. The mixtures cure to hard resins at room or elevated temperatures.  In a typical example (1) a diglycidylether derived from bis (4-hydroxyphenyl) - dimethylmethane, an epoxidised soya bean oil and a mixture of curing agents of the formulae (1) and (4), were mixed in the liquid state and cured in 30 minutes at 100 DEG C. to a tough, clear resin. If desired a silica flour filler may be added. In Example (4) the cure was accelerated by addition of phenol, salicylic acid, benzoic acid or triethanolamine.  The subject matter of Specification 865,656 is disclaimed.
Patent GB-406167-A (GB)
Title: An improved lifeguard or catcher for motor vehicles
IPC: B60R21/34
Filed: 1933-05-19
Abstract: 406,167. Lifeguards for vehicles. LLOYD, W. H., 25, Drayton Road, Tottenham, London. May 19, 1933, No. 14585. [Class 103 (ii).] A motor-vehicle lifeguard comprising a horizontal slatted frame 21 and a second vertical frame 20 integral therewith, is pivotally mounted on a shaft 18 supported in brackets 10 fixed to the front axle so as to be immovable laterally and normally is held raised by a hook 15 keyed to a shaft 12, also supported by the brackets 10, the hook, which engages the frame 20, being connected to a buffer bar 23 by cranks 13 and spring-pressed guided rods 26, and to an extension 24 of the frame 21 by a lever 14, link 17, bell-crank 39, rod 35, and links 36, 31 so as to be released to permit the guard to fall to the ground on impact of an obstruction with the bar 23 or extension 24. The extension 24 is guided in its rearward movement by blocks 33 sliding in guides 34 on the side-members of the frame 21. The lifeguard may be used in combination with the wheel-guards described in Specification 406,109.