baber/WOPTO huggingface dataset:
Patent GB-430009-A (GB)
Title: Improvements in diesel-electric power systems
IPC: H02P9/00
Filed: 1933-12-04
Abstract: 430,009. Dynamos. PESTARINI, G. M., 4, Tapton House Road, Sheffield. Dec. 4, 1933, No. 34064. [Class 35] Exciting.-A variable-load Diesel-electric power system comprises a generator provided with excitation arrangements for imposing set values on the armature current and including a winding which produces an excitation by which the set value of the armature current is determined, this winding being fed from a regulator dynamo driven by the Diesel engine so that the current-voltage characteristic of the generator is of approximately rectangular hyperbola form. The regulator dynamo may be a critically excited machine, that is, a series or shunt machine run near the speed below which it fails to build up voltage and having a practically unsaturated magnetic circuit so that slight variations of speed result in large variation of voltage ; alternatively, it may be an unsaturated shunt or separately excited machine acting in opposition to a source of substantially constant voltage. The main generator excitation arrangements are such that the machine normally will give a constant current output irrespective of the conditions in the load circuit, and the winding supplied by the regulator dynamo acts to vary the value of the constant current output with slight changes in the speed of the Diesel engine. In Fig. 1, the main generator 1 is of the metadyne type having primary brushes a, c fed from a substantially constant voltage source 6, and secondary brushes b, d connected to traction motors 3, 4, 5. Primary and secondary variator windings 8, 10 are provided, the winding 10 being supplied from an unsaturated shunt dynamo 9 and the saturated exciter 6 in series opposition. In a modification, an additional secondary variator winding may be connected at one end to one of the primary brushes and at the other end to the midpoint of a resistance connected across the other primary brush and one of the secondary brushes. The object of the additional winding is to cause the current-voltage characteristic of the main generator to approximate to the' desired form independently of the regulator dynamo which accordingly has to supply smaller exciting currents. In Fig. 5, the generator is of the Kraemer type having a shunt field winding 17, an opposing series winding 18 and a separately excited winding 19. The regulator winding 16 is fed by a critically excited series dynamo 9 or if the arrangement shown in Fig. 1 be adopted, the saturated machine 6 may also supply the winding 19. To prevent the armature current from exceeding a predetermined value, a relay controlled by the armature current or by the current in the regulator winding may act to reduce the fuel supply to the engine. The value of the constant power output may be varied by adjustment of the resistance in the field circuit of a shunt excited regulator dynamo or in the main circuit of a series dynamo, or by fuel supply control of the engine. Specifications 391,767; 404,739, [Group XXXVII], 417,517, and 420,167 are referred to.
Patent GB-1099022-A (GB)
Title: Apparatus for optically recording binary coded data
Inventor: TIMARES NORMAN R
IPC: G06K17/00
Filed: 1965-01-28
Abstract: 1,099,022. Optically recording coded data. FMA Inc. Jan. 28, 1965 [Oct. 12, 1964], No. 34138 /67. Divided out of 1,099,021. Headings G2A and G2G. The Specification is divided out of Specification 1,099,021, and comprises particularly the subject-matter disclosed therein with especial reference to Fig. 3.
Patent GB-1347277-A (GB)
Title: Process and catalyst for the preparation of copolymers of ethylene and alpha-olefins
IPC: C08F210/00
Filed: 1971-07-21
Abstract: 1347277 Polymerisation catalysts ESSO RESEARCH & ENG CO 21 July 1971 [28 July 1970] 34164/71 Heading B1E [Also in Divisions C2 and C3] A catalyst component suitable for use in conjunction with an organoaluminium compound in the polymerization of olefins comprises a reaction product of MX 4 , VO(OR) 3 , and a hydrocarbon or halohydrocarbon. R is a hydrocarbon, X a hallide other than fluoride and M is Ti or V. In the Examples, reaction mixtures of TiCl 4 /VO(OC 4 H 9 ) 3  or TiCl 4 /VO(OC 2  H 5 ) 3  in hexane and VCl 4 /VOCOC 4 H 9 ) 3 , VBr 4 /VO (OC 4 H 9 ) 3  TiCl 4 /VO(OC 3 H 7 ) 3  and TiCl 4 /VO(OC 2  H 5 ) 3  in toluene, chloroform, xylene and dichlorobenzene respectively are prepared and in one case the product is specifically characterized as TiCl 4 .2VO(OC 4 H 9 ) 3  C 6 H 14 . Organoaluminium components are (C 2 H 5 ) 2  Al Cl in each case.
Patent GB-619088-A (GB)
Title: Improvements in direct contact steam boilers
IPC: F22B1/26
Filed: 1946-11-18
Abstract: 619,088. Stuffing-boxes. MAYAS, N. Nov. 18, 1946, No. 34169. [Class 122 (v)] [Also in Group XIII] A steam boiler comprises a horizontal water drum 11 fitted with one or more aligned combustion chambers 10, Fig. 1, from which hot gases are permitted to issue and heat the water in the said drum 11 by direct contact, each chamber being normally closed by a spring- pressed valve 15 which, however, opens automatically when the pressure therein attains a value determined by adjustment of its spring 38 by a collar 39. The stem 23 of the valve 15 passes through a stuffing-box 24 at the apex of the combustion chamber, and the said box has a cylindrical tapered bore in which are located a number of packing rings 25 resting on a spring 26, each ring being formed with a gap 28, Fig. 4, to permit contraction, a projecting lug 29 for engagement with a vertical groove 27 in the bore of the stuffing-box, an inclined vertical edge 30, and a bevelled portion 31 on an inner edge for lubrication purposes.
Patent GB-1514255-A (GB)
Title: Thixotropic urethane alkyd resins
IPC: C08G18/46
Filed: 1975-08-19
Abstract: 1514255 Thixotropic urethane alkyd resins BAYER AG 19 Aug 1975 [22 Aug 1974] 34395/75 Heading C3R Thixotropic urethane alkyd resins are perpared by reacting (a) a hydroxyl group-containing partial ester of a polyhydric alcohol and a long chain unsaturated fatty acid and/or a hydroxyl group-containing oligoester (having a M.W. of 574 to 3000) of a polyhydric alcohol, a long chain unsaturated fatty acid and a polybasic carboxylic acid, (b) a dimeric fatty acid polyamide which is modified by boiling with a mixture of a fatty acid and a polyhydric alcohol or with a mixture of a fatty acid ester and a polyhydric alcohol, and which contains 0À1 to 1À5 and of ester groups and 0À2 to 0À9 mol of hydroxyl groups per mol of amide groups and (c) a diisocyanate. Specific examples of component (a) are the reaction products of soya oil fatty acid and pentaerythritol and of phthalic acid anhydride with (i) linseed oil and glycerol or (ii) soya oil, trimethylol-propane and pentaerythritol. A typical example of component (b) is the reaction product of a polyamide derived from a commerical dimeric fatty acid, stearic acid and ethylene diamine with soya bean oil and trimethylolpropane. Tolylene diisocyanate is the preferred component (c). The reaction may be carried out in the melt or in solution.
Patent GB-1299817-A (GB)
Title: Improvements in temperature-responsive devices for controlling fluid flow
Inventor: LINGNAU JOSEF
IPC: F16T1/10
Filed: 1971-07-22
Abstract: 1299817 Making valves welding by pressure GESTRA-KSB VERTRIEBS GmbH & CO KG 22 July 1971 [1 Aug 1970] 34401/71 Headings B3A and B3R [Also in Division F2] In a temperature responsive valve the closure member 4 has a central projection 12 which is passed through an aperture in a diaphragm 3 after which the member 4 is welded to the diaphragm by resistance heating and melting of an annular hump (13) surrounding the projection 12 and spaced therefrom by an annular recess (16). A counter plate 5 is thereafter riveted to the diaphragm by flanging over the projection 12 which passes through a hole in the plate. Surfaces 14, 18 on the closure member and plate grip the diaphragm so as to prevent the welded part from being subjected to flexing stresses. The diaphragm periphery is gripped between wall parts 1, 2 and chamber 6 is filled with thermally expansible material. Arms 7 of part 2 grip a seating bush 8 on a valve housing 9.
Patent GB-1477494-A (GB)
Title: Water closet
IPC: E03D11/10
Filed: 1974-08-05
Abstract: 1477494 Flushed closet THETFORD CORP 5 Aug 1974 [21 Dec 1973] 34437/74 Heading E1C A w.c. actuating mechanism is operable to simultaneously pivot a pan-shaped dischargepassage valve 54 to a tilted position alongside the bowl 26 and to deliver flush water to the bowl and then return the valve to its closed position and terminate the flush, the valve 54 being pivotal about an axis 76 at the bowl's open upper end. The flush water is supplied via a chamber 47 which holds sufficient water after the valve 54 has been closed to re-create a seal between the valve and bowl. The actuating mechanism comprises a knob 96 rotatable to operate a ball valve 92 to admit flush water and to operate a crank and lever mechanism 106, 98 to pivot the valve 54, the mechanism being spring-loaded to the valve-closed position. The chamber 47 is defined between a cover 52, Figure 4, and a channel 42, Figure 1B, and delivers water tangentially to a spiral groove in the bowl, Fig. 2 (not shown). The water is delivered to the chamber via a vertical riser 44 having a float valve 94 which, when flush water is admitted, is forced upwards to close a vacuum-breaker hole 95 in cover 52.
Patent GB-282458-A (GB)
Title: Improved manufacture of hydraulic cement
IPC: C04B7/24
Filed: 1927-12-20
Abstract: 282,458. Wacker Ges. f³r Elektrochemische Industrie, Dr. A. Dec. 21, 1926, [Convention date]. Cements, Portland, materials for making.-Dry calcium hydroxide which has been obtained in making acetylene from calcium carbide by treatment with a small proportion of water is mixed with clay or other siliceous and aluminiferous material to form Portland cement.
Patent GB-322329-A (GB)
Title: Improvements in engine starters
IPC: F02N15/02
Filed: 1928-11-23
Abstract: 322,329. Rogers, F. H., (Eclipse Machine Co.). Nov. 23,192s. Turning-gear.-In an electric starter comprising a sleeve 12 slidable on the splined shaft of the starting motor and carrying a. loosely mounted pinion 18, a nut 22 threaded on the sleeve 12, a.nd a multiple-plate clutch 25 connecting the pinion to a disc or flange 23 on the nut, a yielding lost-motion connection is provided between the sleeve 12 and a manually-controlled shifting sleeve 31. As shown, the sleeve 31 carries pins 34 in engagement with slots 35 in the sleeve 12, and a spring 39 is interposed between shells 36, 37 engaging respectively a flange on the sleeve 12 and projections 38 on the pins 34. A light torsion spring 24, connected to the nut 22 and the sleeve 12, maintains the clutch plates in contact, and the plates are enclosed by a shell 29 held on the disc 23 by a spring ring 30. On moving the sleeve 12 and pinion 18 axially at starting, the spring 39 is compressed if the pinion teeth clash with those of the engine gear; the actuating lever switches on the starting motor, the nut 22 tightens the clutch 25, and rotation of the pinion allows the spring 39 to force it into mesh with the engine gear, which is then driven. When the engine starts, the nut 22 relieves the pressure on the clutch plates. In a modification, the shifter sleeve slides externally on an extension of the sleeve 12, the shell 36 is held between the sleeve 12 and the extension, and a shell such as 37 bears against the end of the shifter sleeve. In another form, a shifter sleeve sliding on an extension of the sleeve 12 has a single flange, a second flange being fixed on the end of the sleeve extension.
Patent GB-806034-A (GB)
Title: Improvements in or relating to control systems for electric motors
Inventor: PARTON KENNETH CHARLES
IPC: B66B1/12
Filed: 1955-12-02
Abstract: 806,034. Controllers. GENERAL ELECTRIC CO. Ltd. Nov. 29, 1956 [Dec. 2, 1955], No. 34623/55. Class 38 (3). Relates to a system in which the cage of an electric winder is driven over a predetermined distance, and is acceler ated over a section on leaving a stop ping - point, and decelerated over another section when approaching the next stopping-point. The speed of th( driving motor is controlled by a voltage signal derived from potentiometer 1 and applied to lines 21, 22 througl reversing contactors 2, 3 and 5, 6 Assuming the contactors 2, 3 are closed and the cage is starting t( descend, a connection is completed from lead 21, contact surface 17 motor-driven contact 19, contact sur faces 26, 27, motor-driven contact 29 to the potentiometer. A small voltage signal is given to the winder motor which proceeds at a low speed. As the contact 29 descends, the value of the signal voltage increases until the contact has covered the whole of the potentiometer segments, whereupon contact 19 engages surfaces 16, 20. This removes contact 29 from circuit and completes a connection from lead 21 and circuit elements 20, 19, 16, through contact surface 13, motor-driven contact 11, contact surface 9, and through the whole of the potentiometer winding to lead 22. Thus the voltage signal is a maximum and the motor travels at constant speed. As the cage continues its descent, the contact 11 engages surfaces 10, 14 so completing a connection from lead 21 through parts 14, 11, 10 to contact surface 23, motor-driven contact 25, and the potentiometer. The arrangement is such that, when the contact 11 first engages the surfaces 10, 14, the contact 25 is at the start of the potentiometer segments, so that the voltage signal is a maximum. Thereafter, the voltage signal is reduced and the winder motor decelerates to creep speed. To adapt the system for different lengths of wind, the contacts 11, 19 are adjusted relatively to the motor shaft. For the reverse direction of rotation of the winder motor, the contactors 2, 3, are opened and the contactors 5, 6, closed. If it is desired to keep one drum set stationary and thus render it ineffective, full protection may be provided over the full shaft travel by suitably modifying the other drum set, for example the set having the parts 9-23.
Patent GB-994760-A (GB)
Title: Thermoplastic jacketed air duct and method of making same
IPC: B29C63/42
Filed: 1963-09-03
Abstract: 994,760. Plastic-jacketed air ducts. JOHNSMANVILLE CORPORATION. Sept. 3, 1963 [Oct. 19, 1962], No. 34682/63. Heading F2P. A method of producing a jacketed mineral fibre duct comprises inserting a shape-retaining, resin-bonded fibre duct into a heat-shrinkable resinous film duct being slightly larger than the fibre duct and heat shrinking the film into a taut and snug relationship with the fibre duct. The film can be vinylidene chloride, vinyl chloride, polyethylene terephthalate, a copolymer of vinyl chloride or a copolymer of vinylidene chloride. Preferably the mineral fibre comprises glass fibre.
Patent GB-196654-A (GB)
Title: Improved manufacture of cigarette-tubes and material for making same
IPC: B29D7/01
Filed: 1921-12-23
Abstract: Thin films of acetyl cellulose or other cellulose esters, used as substitutes for cigarette-paper, are rendered opaque by evaporating solutions of the esters, also containing 1-2 per cent of nitro-cellulose, upon a rough surface such as frosted glass plate, the plate being first rubbed with a finely powdered pigment such as chalk.  Transparent longitudinal edges and suitable designs may be produced upon the films by allowing the corresponding portions of the plates to remain smooth. Specification 4959/10 is referred to.
Patent GB-956004-A (GB)
Title: Improvements in or relating to implements for laterally displacing crop or like material lying on the ground
IPC: A01D78/00
Filed: 1960-10-11
Abstract: 956,004. Haymaking machines. C. VAN DER LELY N.V. Oct. 11, 1960 [Oct. 23, 1959], No. 34808/60. Heading A1F. A side-delivery raking arrangement comprises two frames 1, 27 coupled together and having mountings 7, 29 for rake-wheels 3-13, the total number of rake-wheels being sufficient to fill all the mountings on one frame 1, there being two possible working positions, in the first of which the first frame 1 carries all the rake-wheels and in the second position at least one of the rake-wheels is moved to the second frame 27, the arrangement of the coupling members 14, 20, 31 on both frames being such that either frame can be coupled to a tractor 23 independently of the other. As shown, three rake-wheels 8, 9, 13 can be moved to the second frame 27 which is mounted on a single ground-wheel 46 and is coupled by a universal joint 31 to a bracket 24 on the first frame. The joint 31 comprises non-intersecting vertical and horizontal pivots 34, 36 so that the front end of the frame 27 cannot move vertically. A bracket 48 permits the coupling of a third frame when desired. The frame 1 is a deformable parallelogram having ground wheels 14, 15, 16 of which the wheel 16 is normally co-axial with the wheel 46 and the wheel 14 is secured to a rod 18 which is coupled to the tractor by a drawbar 19 having vertical and horizontal pivots 20A, 18A at its ends. The rake-wheels on the frame 1 are carried by cross-bars 4 and can be angled to the line of draught by deforming the parallelogram, a locking sector 114 being provided. In a modification, (Fig. 3, not shown) the frame 27 is coupled directly to the tractor draughtbeam 22 by a pair of forked members 34 spaced apart along the portion 30 of the frame. The draw-bar 19 is then coupled to a bracket similar to the member 48 but more rearwardly located.
Patent GB-1443551-A (GB)
Title: Three-dimensional radiography
IPC: G03B42/02
Filed: 1973-07-20
Abstract: 1443551 X-ray tubes D F WINNEK 20 July 1973 [20 July 1972] 34851/73 Heading H1D [Also in Division H5] An X-ray tube for use in a radiographic system (see Division H5) has an electron gun 14, scanning coils 16 and an elongated target 18 along which the electron beam is scanned to form a line source of X-rays.
Patent GB-343443-A (GB)
Title: Improvements in means for dismantling, removing and erecting asphalt plants, bituminous or tar macadam mixing plants and the like
IPC: E01C19/10
Filed: 1929-11-15
Abstract: 343,443. Tar macadam, asphalt, &c. mixing plants. RHODES, W., 38, Queen Anne's Gardens, Bush Hill Park, Enfield, Middlesex. Nov. 15, 1929, No. 34883. [Class 107.] The elevator 13, storage bins 14, and weighing and mixing units 15, 16 of asphalt plants or tar macadam mixing plants are mounted on a vertically slidable platform 1 which is provided with brackets 10 adapted to slide on stanchions 2. The platform 1 is adapted to be moved vertically by wire ropes 6 connected between the tops of the stanchions 2 and drums 3 on a shaft 4 on the platform 1, such shaft 4 being operable by means of a ratchet lever 9 or chain actuating worm and worm-wheel mechanism 8. The stanchions 2 are mounted on wheels 17. Sockets 11 are provided on the apparatus for receiving a jib 12 for dismantling the storage bins 14 and screen. The platform 1 may be operated by rack and pinion gear if desired.
Patent GB-393304-A (GB)
Title: Improvements in and connected with electrical heating elements and in the manufacture of the same
IPC: H05B3/16
Filed: 1931-12-01
Abstract: 393,304. Wire resistances. MUSGRAVE, J. L., 43, Bloomsbury Square, GRIERSON, R., 4, Bloomsbury Place, and CRITTALL & CO., Ltd., R., 43, Bloomsbury Square, both in London. Dec. 1, 1931, No. 34955/32. Divided on 391,895. [Class 37.] In a continuous process for manufacturing electric heating elements of the type employed in panel heating, and in which resistance wire and associated bus-bars are embedded between layers of flexible insulating-material supplied from rolls and subsequently compressed between rollers, the wire and bus-bars are wound round pins which pierce a length of insulating material along either edge, and which are withdrawn as the operation of compressing between rollers proceeds. In the arrangement shown, the pins h<1> are carried by endless travelling bands H so that they pierce a layer A of material as it travels along a table J and withdraw again as the material passes under the compression roller F. Adhesive strips may be used to hold the resistance wire and bus-bars to the material A.
Patent GB-478030-A (GB)
Title: Wads for fire-arms
IPC: F42B7/08
Filed: 1936-12-21
Abstract: 478,030. Cartridge wads. FOCH, H. Dec. 21, 1936, No. 35018. Convention date, Dec. 21, 1935. [Class 9 (i)] An undershot wad, more especially for use in sporting-cartridges, comprises a cardboard, metal &c. cylinder 6, Fig. 1, closed at its front end by disc and frustum shaped portions 7 and 8 respectively. The cylinder is filled with a resilient material 13, such as sawdust, cork, crinkled paper, corrugated cardboard or ordinary or sponge rubber, and has its rear end closed by a cardboard, cork &c. disc 14. The walls of the cylinder may be formed with longitudinal or circular ribs and the portion 8 may be provided with perforations 9, a disc 11 of lubricant being arranged as shown between washers 10, 12. When a shot is fired, the disc 14 is forced forwardly by the gas pressure and acts as a piston in the cylinder so as to compress the material 13 thereby expanding the middle portion of the wall of the cylinder into intimate contact with the gun barrel. The rear portion of the cylinder wall is also similarly expanded by the gases entering the chamber formed by the forward movement of the disc 14. The gas pressure is also communicated through the material 13 to the disc 11 so that lubricant is caused to ooze through the perforations 9. An annular wad 15 is arranged as shown in front of the disc portion 7. The Specification as open to inspection under Sect. 91 comprises also a modified construction of wad, Fig. 3 (Cancelled), consisting of a jacket or cylinder 6<1> filled with washers 131 of agglomerated cork &c. and having a cavity 17 therebetween. A disc 18, which acts in a similar manner to the disc 14, Fig. 1, is placed on the rear end of the washers 13<1> and a cap 19 of paraffin or other suitable lubricating material covers the front portion of the jacket 6<1>. This subject-matter does not appear in the Specification as accepted.
Patent GB-522038-A (GB)
Title: Improvements in or relating to machines for moulding counters for boots or shoes
IPC: A43D8/00
Filed: 1938-12-03
Abstract: 522,038. Moulding shoe stiffeners. BRITISH UNITED SHOE MACHINERY CO., Ltd., and BENNION, L. H. Dec. 3, 1938, No. 35267. [Class 17 (i)] Relates to counter moulding machines of the kind described in Specifications 268,032, [Class 17 (i)], and 481,876, wherein an operating part. is moved to operative position by frictional connection with a driving shaft, and consists in reducing the friction necessary by connecting the spring returning the gear to starting position direct to the driving shaft, instead of through the frictional connection. A driving shaft 103 is geared to a shaft 125 carrying the friction blocks described in the prior Specifications for swinging the slide 147 to 'the end of the lever 145. To return the mechanism to starting position at the conclusion of a cycle a spring 38 is housed in a fixed tube and connected by a chain to a crank 20 on the shaft 125. It is not necessary to have the frictional grip strong, as this does not have to act against the spring 38. The upper end of the spring is supported by a ball thrust bearing, so that it can turn freely.