baber/WOPTO huggingface dataset:
Patent GB-587604-A (GB)
Title: Improvements in or relating to preselector mechanisms for use with change speed gear
IPC: F16H61/02
Filed: 1944-11-13
Abstract: 587,604. Controlling change-speed gearing. VICTORIA MACHINE TOOL CO., Ltd., SELBY, J., and FRYE, J. Nov. 13, 1944, No. 22351. [Class 80 (ii)] A change-speed preselector, for a machine tool, comprises rockshafts 46, 47, 48 operating, as through rack-and-pinion 43 &c. gear shift forks 38, 39, 40 respectively, controlling individual ratios operating in series so that the overall ratio is the product of the individual ratios, each rockshaft being turned, through a pair of racks 52, 52 (one only shown in Fig. 4) ; 53, 53 ; 54, 54, engaging opposite sides of pinion-teeth on the rockshafts, by a preselector disc 55, or shaft, which is turned to bring selectively-positioned profile variations, e.g., holes 56, under the rackends (Fig. 4 position), and moved bodily axially to operate the racks and introduce a preselected gear-combination (Fig. 7 position). In the case of the rack-pair 54 only, shallow holes 56 (Fig. 7, left) move the racks to a central position whilst a through-hole together with the disc-surface (Fig. 7, right) move the racks to opposite extremes, giving three effective ratio-positions of the shifter rockshaft 48. The shallow holes are not used for the other rack-pairs which have two extreme positions only, making twelve ratios in all. The disc 55 is splined to a preselectorknob with an indicating dial 58, and is moved bodily to execute a shift, by axial movement of a central rod 62, linked to a rockshaft 73 carrying an operating handle. A spring-detent 75 retains the indicator dial 58 in selected gearpositions and, to prevent axial executive movement of the pre-selector disc 55 in intermediate positions and also to prevent rotation of the disc during executive movement, a fixed peg 78 comes into engagement with one of a series of holes 77 only in gear-positions of the dial. In a modification, Figs. 1-3 (not shown) the preselector is a shaft having radially-projecting pegs of varying lengths to operate the racks when the shaft is moved bodily by cam means in a guided transverse direction to execute a shift. Two pairs of racks only are used, one having three set positions, the other two, giving six ratios in all. The preselector dial turns the shaft through a helical gear which disengages during the executive movement, a drift-pin interlock being provided between the preselector-dial and the executive rockshaft to prevent operation of the latter in intermediate gear-positions of the dial and to prevent dephasing rotation of the dial during executive movement of the selector shaft, rotation of which latter is prevented by a fixed peg such as 78, Fig. 4.
Patent GB-384955-A (GB)
Title: Hank dyeing machine
IPC: D06B3/08
Filed: 1932-08-12
Abstract: <PICT:0384955/IV/1> <PICT:0384955/IV/2> In dyeing, washing, &c. hanks of yarn, the hanks are placed on carriers such as reels or rollers H which are caused to rotate forward and backward by the same amount for a predetermined number of times, and then move in one direction to draw the hanks round, a further drawing round, but in the opposite direction, taking place after a further number of backward and forward movements.  The rollers H receive their motion from the wheel 42 on a reversing shaft 8 connected through gearing with the shaft 1 of a motor M.  The gearing consists of toothed wheels 2 .. 5, Fig. 4, on the shaft 1, toothed wheels 12, 13, 14 free to rotate on the shaft 8 and directly engaging the wheels 3, 4, 5, a toothed wheel 7 free to rotate on the shaft 8 and connected to the wheel 2 through another wheel so that 7 rotates in the opposite direction to the wheel 12 and a tapered clutch member 10 which can engage a ring 9 fixed to the wheel 7 or a ring 11 connected to the wheel 12.  The wheels 12, 13, 14 and a ring 21 on the shaft 8 are provided with cams 15, 16, 17, 22, 23, 24 which on rotation of the wheels and owing to the fact that the wheels rotate at slightly different speeds, run on to and slide off each other and in so doing cause the wheel 12 to slide on the shaft 8 whereby the clutch 10 is caused to engage either the ring 9 or the ring 11 and gives to the rollers the above movements.
Patent GB-598429-A (GB)
Title: Improvements in self-locking nuts
IPC: F16B39/286
Filed: 1945-09-03
Abstract: 598,429. Casting composite nuts. CITROEN, A. Sept. 3, 1945, No. 22659. Convention date, March 2, 1942. [Class 83 (i)] [Also in Group XXV] The tapped core 8 of a nut is longitudinally ribbed at 10 to receive a cast-on light metal body 11.
Patent GB-424203-A (GB)
Title: Improvements in and relating to gaseous electric discharge lamps
IPC: H01J61/10
Filed: 1933-08-15
Abstract: 424,203. Discharge lamps. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, DAVIES, L. J., 147, Murray Road, and SCOTT, W. J., 22, Windsor Street, both in Rugby. Aug. 15, 1933, No. 22803. [Class 39 (i)] A high-pressure gaseous arc lamp contains a powdered refractory material in such a fine state of subdivision that it is picked up by the convection currents in the lamp and is thereby conveyed into the arc stream. The material may be tungsten, or thorium oxide, or beryllium oxide, or molybdenum, and is raised to incandescence by the heat of the arc, thereby improving the colour of the light emitted by the lamp. Specification 288,737, [Class 39 (i)], is referred to.
Patent GB-1040942-A (GB)
Title: Improvements in or relating to control means for turbo-generators
IPC: H02P23/00
Filed: 1963-06-07
Abstract: 1,040,942. Automatic speed control. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM). June 7, 1963 [June 8, 1962], No. 22820/62. Heading G3R. The voltage of an exciter 3 of a turbo-alternator 1, 2 is employed as a speed indicating signal and applied to a potentiometer 11. The slider voltage of the potentiometer is fed through a measuring device 4 to a circuit 5 wherein it is compared with a speed reference signal and the resultant error signal fed to a mixing device 6. The device 6 is also fed with a net load signal from a source 7 and a positional feedback signal from a transducer 8 coupled to a hydraulic servo 10 for a motive fluid admission valve 9 of the turbine. The difference between the positional feedback signal and the difference between the load signal and the error signal is fed through a high-gain amplifier 12 to a control 13 for the servo 10 to slowly alter the position of the valve 9. The error signal is also applied to an amplifier 14 having an input threshold which blocks the signal until it exceeds a predetermined value, when, through a control 15 it causes a coarse but rapid adjustment of the valve 9 in the closing direction.
Patent GB-665187-A (GB)
Title: Improvements relating to heat exchangers
Inventor: STEVENS RAYMOND KENNETH PETER
IPC: F28D19/04
Filed: 1948-08-20
Abstract: 665,187. Heat regenerators. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Aug. 20, 1948, No. 22823/49. Divided out of 665,099. Class 64(i). In a rotary regenerator in which the rotatable heat absorbing disc comprises foraminated or cellular matrix elements 19 arranged within an outer annular member, e.g. a rim 39, and around an inner member. e.g. a ring 53, at least one row of spokes 40 extend radially between the inner and outer members through holes in the matrix elements, and are secured in holes in the inner and outer members. In the form shown there is a further set of spokes connecting the ring 53 to the hub 38. In a simpler form the spokes connect the hub and rim. The spokes may be arranged in a double row. The rim comprises a pair of rings held together side by side by - screws, and embracing felloes 51. Spring- pressed arcuate sealing members 42 are provided between the rim and the casing 44.
Patent GB-815076-A (GB)
Title: Improvements relating to the production of aluminium by fused salt electrolysis
IPC: C25C3/08
Filed: 1956-07-24
Abstract: 815,076. Fused electrolyte cells. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA, and VARDA, G. DE. July 24,1956 [July 28, 1955], No. 22850/56. Class 41. A furnace for producing aluminium by fused salt electrolysis has at least one electrolytic cell having a vertical or inclined carbon cathode wall 21 the surface 1<SP>1</SP> of which is cellular, Fig. 3, or formed with a number of receptacles 3, Fig. 9, or 31, Fig. 10, adapted to retain molten aluminium 4. By the term carbon is meant any carbonaceous material, including graphite. The receptacles 3, 3<SP>1</SP> may be elongated, Fig. 10, or may have circular entrances, and in the case of an inclined cathode, may be stepped rearwardly, Fig. 9. The face 1<SP>1</SP> of the cathode may have an inert, insulating coating 12<SP>1</SP>, e.g. of electro-fused aluminium oxide or magnesium oxide, and the coating 12<SP>1</SP> may extend along the upper walls of the receptacles 3<SP>1</SP>. The general construction of the cell may be as described in Specification 814,754, and pre-baked or self-baking anodes may be employed. In starting the cell, molten aluminium is introduced into the receptacles 3, 3<SP>1</SP>, and during operation alumina is fed to the cell at a point remote from the cathode or dissolved in the bath e.g. in powder form or dissolved in the bath. The molten aluminium 4 in the receptacles 3, 3<SP>1</SP> and in the cellular surface 1<SP>1</SP> localizes the interaction between the electrolyte and the cathode and helps to protect the cathode surface. Specifications 800,092 and 802,959 also are referred to.
Patent GB-1144151-A (GB)
Title: Production of graft polymers
IPC: C08F279/02
Filed: 1966-05-23
Abstract: 1,144,151. Metalated hydrocarbon polymers and graft polymers thereof. PHILLIPS PETROLEUM CO. 23 May, 1966 [24 May, 1965 (2)], No. 22880/66. Headings C3G and C3P. A hydrocarbon polymer containing allylic and/or benzylic hydrogen atoms is dissolved in an organic solvent and reacted with a lithium alkyl in the absence of free monomer. The resulting metalated polymer may be grafted with an olefinic hydrocarbon monomer. Specified polymers are homopolymers or copolymers of conjugated dienes, e.g. butadiene or isoprene or of vinyl aromatic compounds and copolymers of a conjugated diene and a vinyl aromatic compound, e.g. styrene, 3-methyl styrene, 4- methyl styrene, 3,5-diethyl styrene, 4-n-propyl styrene, 2,4,6-trimethyl styrene, 4-dodecyl styrene, 3 - methyl - 5 - n - hexyl styrene, 2,4,6 - tri - tert. - butyl styrene or 2,3,4,5- tetramethyl styrene. The polymer may be random or block. When the polymer is prepared using an alkyl lithium compound as catalyst, an additional amount of said compound is added after polymerization for metalation of the polymer. A polar solvent, e.g. a tertiary amine or an ether may be employed alone or with a hydrocarbon diluent during the metalation reaction. The grafting monomers specified are conjugated dienes, styrenes and vinyl-naphthalenes. In the examples, butadiene-styrene random copolymers containing divinyl benzene units, polybutadiene containing, in some cases, divinyl benzene units, a butadiene-styrene block copolymor and a styrene-vinyl toluene copolymer are metalated with n-butyl lithium in a solvent selected from cyclohexane, isobutane and n-pentane, together with triethylamine in certain examples. The metalated polymers are grafted with styrene or, in the case of the styrene-vinyl toluene copolymer, with 1,3- butadiene. The polybutadiene-styrene graft polymer is compounded with vulcanizing agents and fillers and cured.
Patent GB-1138381-A (GB)
Title: Antistatic treatment of polymers
Inventor: AALBERS JOHAN GERHARD
IPC: C08J7/052
Filed: 1966-05-23
Abstract: 1,138,381. Polymer compositions. CHEM-Y FABRIEK VAN CHEMISCHE PRODUKTEN N.V. 23 May, 1967 [23 May, 1966], No. 22882/66. Heading C3P. [Also in Division B2] Thermoplastic polymer compositions comprise as antistatic agent a functional derivative of an acid of formula where R is a C 1-20  aliphatic or cycloaliphatic hydrocarbon radical or an aliphatic-aromatic radical containing up to 20 carbon atoms in the aliphatic moiety, R<SP>1</SP> is hydrogen or methyl and n is 1 to 40. The polymer may be a polymer or copolymer of ethylene or propylene, or polyvinyl chloride. Preferred functional derivatives are amides, esters and salts, and many suitable antistatic agents are listed. The polymers may be in the form of films, fibres and mouldings. Examples describe rendering polyethylene, polypropylene and polyvinyl chloride antistatic with monoethanolamide, diethanolamide, N- laurylamide, propylene bis amide, methyl ester, lauryl alcohol/ethylene oxide adduct esters, morpholine salt and butyl ethanolamine salt derivatives of an acid in which R is lauryl, R<SP>1</SP> is hydrogen and n is 10 average.
Patent GB-1220954-A (GB)
Title: Improvements in and relating to devices for clamping and/or holding a workpiece in a lathe
Inventor: DIETL BRUNO
IPC: B23Q1/76
Filed: 1968-05-14
Abstract: 1,220,954. Steadies. B. DIETL. 14 May, 1968 [6 June, 1967; 7 Dec., 1967], No. 22887/68. Heading B3T. A device for holding and supporting a workpiece in a lathe, e.g. a steady rest, comprises at least three movable holding members 5, 6 and 7 carried in a housing 4 and which are engageable with a workpiece at respective equally spaced angular positions, means for actuating the members being operable by manual means 23, 24 or fluid pressure means 19, 20, the movement of the actuating means effecting simultaneous radial movement of the holding members to grip or release the workpiece. The movement of the holding members may be pivotal or radial in relation to the workpiece and effected by way of a lever-linkage as shown in Fig. 3, by cam 13 and lever 14 shown in Fig. 1 or by cam 311 and wedge 325 shown in Fig. 5. The actuation is affected directly through one of the holding members, the other two holding members being connected thereto by levers or cam rollers 29 to effect simultaneous movement. Means are also provided to permit adjustment of the holding members to facilitate the gripping of workpieces of different diameters. The workpiece supporting ends of the holding members may be provided with rollers or pads which may be crowned or chamfered and may be made of plastics material.
Patent GB-1128545-A (GB)
Title: Improvements in or relating to electrical connectors
Inventor: TRICKEY RONALD HENRY
IPC: H01R13/40
Filed: 1966-05-24
Abstract: 1,128,545. Two-part couplings. BELLING & LEE Ltd. 24 May, 1967 [24 May, 1966], No. 23024/66. Heading H2E. An electrical connector comprises a slotted body member 1: of insulating material containing contact members 3, together with mounting; members 6, located upon opposing faces of the body member by interengaging protrusions and recesses formed on said: members, and held against the body member 1 by a retaining member or members 8-extending between the mounting members. These retaining members take the form of metal straps with inturned edges 19, 20 for engagement with the slant faces of dovetail section ribs 9 on the connector body. The end portions 10 of these metal straps are bent aroundribson the mounting members to retain them in position on the body. The mounting members each have a hole 12 to accept a fastening and they may either be arranged to raise the base of the connector body above the level of the panel to which they are attached or support it with its base flush with the panel. Where the body member has been cut across the centre of a contact slot to shorten the body the protrusions on the mounting members fit into the exposed recesses of the contact slot. In another embodiment the retaining member may be an endless-loop of extensible materia placed over the assembly of body member and mounting members by elastic deformation. Alternatively a U-shaped metal strap may be used with its ends bent inwards around one mounting member. In a further embodiment flat metal strips extending between the mounting members to hold them to the body member may lie between raised longitudinal ribs protruding from surfaces of and formed integrally with the body member. The connector is for printed circuit boards and a polarizing key 5 is located in one of the slots in the body in place of a contact member to ensure correct alignment.
Patent GB-480282-A (GB)
Title: Device for lowering the no-load voltage of a transformer more particularly intended for feeding an electric arc
IPC: H01F38/08
Filed: 1936-08-21
Abstract: 480,282. Supply systems for welding- arcs. JACKSON, L. MELLERSH-. (Soc. L'Air Liquide, Soc. Anon. pour l'Etude et 1'Exploitation des Procedes G. Claude) Aug. 21, 1936, No. 23071. [Class 38 (iv)] Switching control.-A device for reducing the no-load voltage of a transformer 4 having a high no-load voltage comprises a contactor 9 in the circuit of the trans former, the actuating coil 12 being connected in series with the secondary 13 of an auxiliary transformer 14 and a winding 3 across which a voltage is developed proportional to the load terminal voltige and opposite in phase to the auxiliatry transformer voltage In the form shown the winding 3 is the secondary of the main transformer and is feeding arc welding electrodes 1, 2. The voltage of the transformer 14 is such that the coil is insufficiently energized to operate the contactor 9 when the secondary of the transformer 4 is opencircuited. If the impedance of the secondary 3 is too low to reduce the voltage across t.he winding 12 sufficiently a resistance 17 may be connected across the contactor 9 so that a voltage is developed in the secondary 3. In the modification shown in Fig. 2, the main transformer has' a secondary in two parts having tappings and one part 103<1> being loosely coupled to the primary. The part 103<1> is connected in series with the auxiliary transformer secondary 113 across the coil 112. A changeover switch 130 is provided so that the coil 112 may be energized directly from the secondary 113. The Specification states that other apparatus associated with the welding equipment may be controlled by the contactor.
Patent GB-674803-A (GB)
Title: Improvements in means for joining two panels by a seal
IPC: B60J10/00
Filed: 1950-09-20
Abstract: 674,803. Glazing; panelling. GENERAL TIRE & RUBBER CO. Sept. 20, 1950 [Oct. 6, 1949], No. 23077/50. Classes 20(iii) and 20(iv) A flexible sealing strip of rubber-like material for joining two panel edges together, e.g. of glass and metal comprises four sealing flanges 6, 7, 10, 11, and a connecting portion 12 providing opposite grooves 2, 3. A hollow 13, preferably with a lower portion 31 extending into the connecting piece 12, enables flanges 10, 11, to be brought towards each other to open the grooves and is adapted to receive and lock toggle elements 14, 15, which may be forced in by hard pressure above so as to constrict the grooves to grip the panels, the elements and body portion being flexibly connected by at least two of the three narrow parts 16, 17, 18. A bead 22 may be formed in one toggle to engage in a groove 23 in the other when the elements are pressed into the hollow. A groove 32, Fig. 9, may also be provided to receive a trim or decorative strip.
Patent GB-409964-A (GB)
Title: Built-up demountable motorcycle
IPC: B62K15/00
Filed: 1933-08-21
Abstract: 409,964. Motor cycles. SEEHASE, H., 1, Elsenstrasse, Berlin. Aug. 21, 1933, No. 23235. Convention date, Aug. 24, 1932. [Classes 79 (iii) and 136 (iii).] A motor cycle comprises a bicycle frame of the girder type and a separate frame which carries the motor and its accessories and is adapted to be positioned on and detachably connected to the bicycle frame by quickly-actuated fastenings, without the use of tools. The motor frame is adapted to brace and stiffen the girder frame of the bicycle. A detachable frame r, Fig. 1, carries the motor 2, tank 1, exhaust 3, driving pulley 4, and other associated parts, and is supported in the correct position for attaching to the cycle frame by a pivoted stand 5. The cycle frame, Fig. 2, comprises two hollow steel supporting beams h, h<1> of rectangular cross section, interconnected by crossbracing members b, b<1>. The beams are each bent from a metal plate, the edges of which are welded together along the centre of the lower surface of the beam. The motor frame is secured to the cycle frame by engaging a pivoted bolt g on the former with a slot in the member b and tightening the nut k, a front support a<1> on the motor frame bearing against the lower surfaces of the beams h, h<1> and being secured in place by a catch f while a rear support a<2> engages a recessed member a3 between the beams. The stand 5 is frictionally pivoted, and is provided with a stop or strut engaging the motor frame r to the rear of a vertical line passing through its centre of gravity. The driving-pulley 4 is connected to a pulley on the rear wheel by a belt and control cables from the handle-bar are connected to spring-urged pivoted levers adapted to be detachably engaged by eyes on control cables carried by the motor frame. The height of the saddle is adjusted by means of a handlever t and screw clamp.
Patent GB-1262077-A (GB)
Title: Improvements in blade assemblies for fluid flow machines
Inventor: JENKINS TREVOR
IPC: F01D5/30
Filed: 1968-05-16
Abstract: 1,262,077. Blade fixing. ROLLS-ROYCE Ltd. May 12, 1969 [May 16, 1968], No.23256/68. Heading F1T. Turbine stator blades 10 of a gas turbine engine have the faces 14, 15 of dove-tail roots 11 urged into engagement with surfaces 16, 17 of an annular mounting groove 12 in a casing 13 by coil springs or spring washers 20, each spring 20 bearing at one end on the casing and at the other end on a flange 23 to urge the latter against the bottom of a recess 21 in the blade root 11. The flange 23 has a stem 22 which is threaded at 24 to permit a bolt 25 to retract the flange 23 away from the blade root 11 during insertion and removal of the blades. Alternatively retraction of flange 23 may be effected by a lever acting on stem 22 or by a nut screwed on the stem.
Patent GB-969846-A (GB)
Title: Super broad band high frequency transistor amplifier
IPC: H03F1/48
Filed: 1963-06-11
Abstract: 969,846. Transistor amplifier circuits. H. MAEDA. June 11, 1963 [June 13, 1962], No. 23262/63. Heading H3T. A broad-band high-frequency amplifier comprises a transistor stage TR1 with a tapped choke L and a resistor R in parallel in the output circuit, the tapping point on the choke being coupled to the base of a transistor TR2 in a succeeding stage.
Patent GB-263518-A (GB)
Title: Improved process of treating nut kernels
IPC: A23N5/00
Filed: 1925-09-18
Abstract: 263,518. Thompson, J. A. and Hough, W. S. Sept. 18, 1925. Steam superheater furnaces.-In an apparatus for treating nut kernels with superheated steam, wet steam from a pipe 1 having a safety valve 3 and a pressure gauge 4 is passed through a pressure-control valve 6 into a tube 7 made of metal resistant to oxidation and packed with copper piping and mounted in a furnace 8 heated by controllable gas jets 9, the steam being superheated, preferably to 200‹ C., before passing to the nozzle 10.