baber/WOPTO huggingface dataset:
Patent GB-1025855-A (GB)
Title: Improvements in film-guiding tracks or channels in cinematographic apparatus
IPC: G03B1/42
Filed: 1964-02-13
Abstract: 1,025,855. Cine apparatus. A. V. L. DEBRIE. Feb. 13,1964 [Feb. 14,1963], No. 6135/64. Heading G2E. In a film guide track for cine apparatus, the film passes between and is braked by the two strips 2,4 formed with V-shaped grooves 3, 5, the movable strip 4 being spring-urged towards fixed strip 2, both strips being interrupted at the film gate to receive a spring loaded shoe 8 against which the film is pressed by the ledges 11,12,12a at the pivoted shutter 7 which thereby holds the film flat. The shutter has a stop 13 and is held closed by spring latch 14. Ledges 12,12a are placed on either side of the sound track, and the braking strips may be rectilinear or curved.
Patent GB-1453277-A (GB)
Title: Synchromesh gearboxes
IPC: F16D23/06
Filed: 1975-02-13
Abstract: 1453277 Positive clutches LANCIA & C FABBRICA AUTOMOBILI TORINO SpA 13 Feb 1975 [7 March 1974] 6176/75 Heading F2C  In a baulk-ring synchronized positive clutch for a change speed gear wherein an internally toothed clutch sleeve 13 is axially slidable on a hub 2b into engagement with clutch teeth 24 carried by gears 27a, 27b and coned friction synchronizing rings 16 have limited circumferential movement relative to the hub 2b and are engageable with coned surfaces 22 fast with the gears 27a, 27b, initial axial movement of the clutch sleeve 13 is transmitted to the synchronizing rings 16 by rollers 12 housed in recesses 7 in the hub 2b and urged by springs 9 into engagement with a groove 15 in the sleeve 13. The  coned surfaces 22 and clutch teeth 24 are formed on rings 23 splined at 25 to the gears 27a, 27b. During clutch engagement frictional drag between the coned surfaces rotates the synchronizing ring 16 relative to the hub 2b so that teeth 24 thereon baulk further movement of the clutch sleeve 13 until synchronism is attained.
Patent GB-644508-A (GB)
Title: Releasable connector fittings for the ends of cables and rods
IPC: H01R4/48
Filed: 1948-02-27
Abstract: 644,508. Rod couplings. POTTER, D. M. Feb. 27; 1948, No. 6204. Convention date, Oct. 26, 1942. [Class 99(i)] ] [Also in Groups XXV and XXXVI] A releasable connector comprises endpieces 10; 11 having semi-cylindrical extentions 12, 14 provided with, teeth 17; which, when the extensions overlap, engage with each other, and a helical spring 18 which is manipulated by aslidable and rotatable collar 20, to prevent the separation of the extensions. One end of the spring which fits closely round the extensions is secured to a flange 19 on the end-piece 10 at 23 and at the other end is fastened in the collar so that in order to release the extensions the collar is rotated contrarily to the convolutions of the spring thereby permitting the collar to be slid away from a flange 21 on the end-piece 11 to contract the spring. The collar then surrounds the whole spring closely and may have the end near the flange 19 dimensioned to engage the latter within its embrace, thereby preventing the spring expanding. To ensure the correct overlap of the extensions, the teeth may have an odd configuration.
Patent GB-727095-A (GB)
Title: Improvements relating to pyrophoric lighters
IPC: F23Q2/34
Filed: 1953-03-06
Abstract: 727,095. Pyrophoric lighters. FAULKNER, H. March 5, 1954 [March 6, 1953], No. 6239/53. Class 75 (3). A pyrophoric lighter has a casing a divided into two compartments by an apertured par. tition b, one compartment containing liquid fuel and the other being open at the top to receive a casing e containing a wick ir contact with absorbent material and carrying the lighter mechanism, the partition opening c being normally closed by a plug f carried by the insertec casing e so that when the inserted casing is removed and inserted the other way round and the lighter inverted fuel flows to the absorbent material, at least part of. the fuel container being transparent. The fuel container may be entirely transparent or its side may be of opaque material while its bottom is transparent. A recess g in the partition b accommodates the plug f when the casing a is inserted in the casing e in the reversed manner.
Patent GB-588996-A (GB)
Title: Improvements in voltage regulators
IPC: G05B1/02
Filed: 1945-03-13
Abstract: 588,996. Automatic control systems. FORD MOTOR CO., Ltd. March 13, 1945, No. 6288. Convention date, Jan. 14, 1944. [Class 38 (iv)] In a vibratory voltage regulator of otherwise conventional design, arcing is reduced by subdividing the field-limiting resistance into at least two series connected sections corresponding to at least one auxiliary contact resiliently supported between the fixed and movable contacts of the regulator. In use as shown, the circuit is closed through two auxiliary contacts 19, 20 mounted independently on insulatedly spaced spring shanks 21 and in contact alignment with movable and fixed contacts 16, 18 and is opened at the voltage setting of the regulator to insert resistance section 29 as the armature 14, actuated by the electromagnet 12 moves initially to separate contacts 18, 20 and then in sequence contacts 20, 19 and 19, 16 to introduce successively into the circuit the two resistance sections 29, 30 in series and finally the whole of the field-limiting resistance 28 comprising the three sections 29, 30, 31 connected in series. To ensure that the contacts separate in the correct sequence, there may be a graduated resiliency between the two springs 21 and the armature restraining spring 15 such as to maintain the required continuity of connection between the contacts left in the circuit as each contact is successively broken.
Patent GB-201954-A (GB)
Title: Improvements in fluid pressure power transmission apparatus
IPC: F01B17/00
Filed: 1922-03-03
Abstract: 201,954. Lassus St. Genies, A. H. J. de. March 3, 1922. Transmitting power.-Fluid-pressure powertransmitting apparatus having a closed cycle, in which a compressor delivers to a reservoir which supplies an air or like engine exhausting into a second reservoir supplying the compressor, is provided with special means for keeping the mass of circulating fluid constant during the running of the apparatus, comprising a spring-loaded differential piston sliding in cylinders of which the sections are nearly proportional to the capacities of the two reservoirs, the displacement of the piston in one direction putting one reservoir into communication with a source of fluid under pressure, while displacement in the opposite direction opens the other reservoir to the atmosphere. Fig. 1 shows one construction in which the cycle is formed by a compressor A driven by the prime mover M, reservoir R, air engine B, and reservoir C supplying the compressor. A valve S short-circuits the air engine if the latter is overloaded. Leakage of air from the circuit causes the spring to depress the differential piston P and so operate a valve g<1>, Fig. 2, which connects the reservoir C to a pressure reservoir N. An increase of the mean pressure in the circuit raises the piston and operates a second valve to connect reservoir R momentarily with the atmosphere. The loading spring may be replaced by a fluid under pressure, and the loading pressure may be varied by hand to vary the conditions of running of the apparatus. Means are described for operating the admission valve of the engine B, comprising a rocking lever, one end ot which engages the valve stem while the other end is operated by a valve-headed rod or stem actuated from a point outside the apparatus or in the reservoir C. The relative capacities of the reservoirs C and R may be varied by opening up communication between either of them and additional chambers or passages.
Patent GB-885411-A (GB)
Title: Lubricant supply device
IPC: F16N3/10
Filed: 1959-02-24
Abstract: 885,411. Collapsible tubes. SHIBAURA KOYODO KOGYO KABUSHIKI KAISHA. Feb. 24, 1959 [Feb. 24, 1958], No. 6364/59. Class 66. A lubricant supply device comprises a collapsible tube 1 of aluminium or synthetic resin and an adapter 8 mounted on a tank 7 and having a one-way valve 15 so that when a screw-threaded sleeve 5 on the tube is engaged with a screw-thread 12 on the adapter, lubricant in the tube may be squeezed out, by rolling up the tube, and pass through the valve into the tank. When the tube is screwed into the adapter a pierced disc 3 on the end of the tube engages against a shoulder 13 on the adapter.
Patent GB-271018-A (GB)
Title: Improvements in and relating to gas-purifying apparatus
IPC: B01D45/02
Filed: 1927-03-08
Abstract: 271,018. Deutsche Erdol-Akt.-Ges., and Bomcke, K. March 8, 1927. Dust collectors; filtering.-Dust is separated by gravity from gas or air by passing the air through the entrance a to a chamber where it is split into parallel streams by a layer of shingle, glass or aluminium beads &c. m . and passes slowly between a number of parallel zig-zagged plates t whereon the dust falls. To preserve the parallel flow a similar bead device n is provided at the other end. The plates all slope down to a central passage g so that the dust runs down and drops into a receptacle k. The beads are. kept in position between wire grids and though they do not themselves collect dust they may be removed for washing The plates t may be formed with upstanding ribs instead of zig-zags. The device may be fitted on motor vehicles for purifying the driving gases.
Patent GB-553461-A (GB)
Title: Improvements in or relating to electric protective discharge devices
IPC: H01C7/12
Filed: 1942-05-12
Abstract: 553,461. Protective devices. IGRANIC ELECTRIC CO., Ltd., and RANDALL, C. E. May 12, 1942, No. 6425. [Class 38 (iv)] [Also in Group XXXVII] A leakage path for the discharge of high potentials suitable for example for connection across an inductive device to reduce the induced voltage when the circuit is broken as in Specification 548,345 consists of granules of tungsten or molybdenum mixed with glass whereby a great number of small gaps is formed. The mixture is contained in a metal cylinder (with an electrode 7) the ends of the cylinder being closed by insulating end plates held together by a bolt 3 which constitutes the other electrode. The granules may be in oil or a gaseous medium.
Patent GB-313063-A (GB)
Title: Improvements in or relating to thermionic and like amplifying systems
IPC: H03F3/02
Filed: 1928-03-01
Abstract: 313,063. Smith, W. S., and McLachlan, N. W. March 1, 1928. Repeating and amplifying systems.-A telephone repeater or like amplifier comprises an audio-frequency amplifier 2 fed from a line 1 and arranged to modulate the output of a supersonic oscillator 3. The modulated oscillations pass through an amplifier 4 to a, detector 5, and thence through an audio-frequency amplifier 6 to the outgoing line 7. A filter and/or a device for correcting distortion may be connected between the detector 5 and amplifier 6. When several such repeating stations are included in one line, different supersonic frequencies are used. The various units 2 - - 6 are screened from each other. The audio-frequency amplifiers may include shaping-apparatus such as described in Specification 304,710, [Class 38 (ii), Electric currents, Converting &c.].
Patent GB-555236-A (GB)
Title: Improvements relating to the manufacture of water gas and apparatus therefor
IPC: C10J1/213
Filed: 1942-05-13
Abstract: 555,236. Carburetted water gas plant. HUMPHREYS & GLASGOW, Ltd., and CHEETHAM, H. S. May 13, 1942, No. 6495. [Classes 55 (i) and 55 (ii)] Carburetted water gas apparatus is provided with an additional pipe connection or connections from the generator to a separate wash box so that blue water gas may be taken off therethrough, no part of the path of this blue water gas being traversed by the carburetted water gas. By this means the water gas is uncontaminated by carburetted water gas made during another portion of the cycle, or by tarry deposits from the oil used in carburetting. Carburetted water gas from a generator A, carburettor B and superheater C pass by pipe L to a washer D and cooler E, a pipe 1 controlled by a valve 2 carrying the uncontaminated water gas to a washer 3 and cooler 4. Specifications 508,618 and 546,177 are referred to.
Patent GB-312410-A (GB)
Title: Improvements relating to the springing and shock absorbing means for aircraft under-carriages and the like
IPC: B64C25/62
Filed: 1928-03-03
Abstract: 312,410. Dowty, G. H. March 3, 1928. Shock-absorbers, applications of. - In aircraft and like undercarriages the wheel is mounted on a stub axle around which it is free to rotate and the stub axle carries a large flange provided with projections for supporting the shock absorbing springing and brake equipment, the flange being constrained to slide relatively to a stationary beam which is fixed to the undercarriage. The axle 4 is provided with a flange 5 having formed thereon a channel shaped member 10 upon which is adapted to slide a similar shaped member carried by the undercarriage struts 1 shown in this instance as a trifurcated one. A dash-pot in two parts is secured to the flange 5 and to the channel-shaped member carried by the struts, the dashpot containing oil or other fluid and having a tapered needle 21 projecting through an aperture 20 so that increasing cushioning is obtained as the two parts of the dash-pot approach one another. Rubber springs 7 are carried by the flange as shown, and are adapted after a certain amount of relative motion between the wheel axle 4 and the struts 1 to be engaged by arms 11 on the struts. Brake means are mounted on the axle comprising brake shoes 6 which are operated by cams 22. The cam 22 may be operated by the pilot by means of a cable 28, lever 26, slide 24, link 34 and lever 23, or by means of a lever on a splined shaft carrying bevelled gears. Specification 303,816, [Class 144 (i), Wheels for vehicles], is referred to.
Patent GB-700470-A (GB)
Title: Process for making anion exchange agents
IPC: C08F8/44
Filed: 1951-03-21
Abstract: Anion-exchange resins are made by treating a benzene-insoluble copolymer containing at least 80 per cent. of a monovinyl aromatic hydrocarbon and not more than 20 per cent. of a polyvinyl aromatic hydrocarbon in the form of dry spheroidal bodies with at least one part per part of resin of a liquid acyclic polyhalohydrocarbon containing from 2 to 3 carbon atoms and from 3 to 5 chlorine or bromine atoms, reacting the copolymer at a temperature of -10 DEG C. to 120 DEG C. with a halomethylating agent consisting of chloromethyl methyl ether or bromomethyl methyl ether until the copolymer contains an average of at least 0.5 halomethyl radical per aromatic nucleus in the copolymer while the copolymer is in contact with and swollen by the acyclic polyhalohydrocarbon, the amounts of polyhalohydrocarbon and the halomethylating agent relative to each other in the starting reaction mixture being within the range of from 0.5 to 4 parts of the polyhalohydrocarbon per part of the halomethylating agent, and thereafter reacting the halomethylated copolymer with a tertiary amine in amount such that substantially each halogen atom of a halomethyl radical in the copolymer is replaced by a nitrogen atom, while the copolymer beads remain swollen by the acyclic polyhalohydrocarbon. Monovinyl aromatic hydrocarbons specified are styrene, ortho, meta, and paramethylstyrenes, ortho, meta, and para-ethylstyrenes, para-isopropylstyrene, ortho, paradimethylstyrene, diethylstyrene, methylisopropylstyrene, ethylisopropylstyrene, secbutylstyrene, vinyl naphthalene, and methyl vinyl naphthalene.  Polyvinyl aromatic hydrocarbons specified are divinyl benzene, divinyl toluene, divinyl xylene, divinyl ethylbenzene, divinyl naphthalene, divinyl-methyl-naphthalene, and trivinyl benzene.  Acyclic polyhalohydrocarbons specified are trichloroethylene, 1, 1, 2-trichloro-ethane, sym-tetrachloroethane, perchloroethylene, unsym-tetrachloroethane, pentachloroethane, methyl chloroform, 1, 2, 3-trichloropropane, 1, 1, 2-trichloropropane, 1, 1, 2-trichloropropylene, 1, 1, 2, 3-tetrachloropropane, 1, 2, 3, 3-tetrachloropropylene, pentachloropropane, tribromoethylene and perbromo - ethylene, and mixtures thereof.  Tertiary amines specified are trimethylamine, triethylamine, dimethylethylamine, tributylamine, triamylamine, methyl diethanolamine, dimethylethanolamine, dibutylethanolamine, methylisopropanolamine, dimethylisopropanolamine, dimethylaniline, diethylaniline, N-dimethyl - 3 - amino - 1, 2-propanediol and pyridine.
Patent GB-1415215-A (GB)
Title: Dioxatricyclodecanol esters thereof and process for their  manufacture
IPC: C07D493/08
Filed: 1973-02-12
Abstract: 1415215 Dioxatricyclodecane derivatives CIBA-GEIGY AG 12 Feb 1973 [10 Feb 1972 10 May 1972] 6813/73 Heading C2C Novel dioxatricyclodecane derivatives of the formula wherein Z 3  is a free or esterified hydroxy group, and the optical antipode and racemate thereof are prepared either by the hydrolytic cyclization of compounds of the formula wherein Z 1  is an esterified hydroxy group, or the optical antipodes or racemates thereof, or by reducing an epoxide of the formula or the optical antipode or racemate thereof, and, if desired or necessary esterifying the resulting compounds in which Z 3  is OH, and if desired, transesterifying the resulting compounds in which R 3  is esterified hydroxy, and/or hydrolysing resulting compound in which Z 3  is hydroxy esterified with a weak acid, and/or resolving racemates thus obtained. (S)-Ketopinyl chloride is obtained by reacting (S)-ketopinic acid with thionyl chloride.
Patent GB-628018-A (GB)
Title: Improvements in or relating to dynamo-electric machines
IPC: H02K19/20
Filed: 1947-03-12
Abstract: 628,018. Dynamo-electric machines. ALLEN, F. J. March 12, 1947, No. 6929. [Class 35] A synchronous machine comprises a solid axially magnetized or magnetizable rotor and a cylindrical stator with laminµ extending axially and disposed between pole-pieces at the ends of the rotor. As shown in Fig. 1, the armature core 14 of coiled strip surrounds the stationary exciting coil 13 for the axially magnetized rotor 10 and demagnetizing coils 18 are provided to protect the bearings. With windings as in the upper part of the figure, the rotor would have two polar projections 12 at one end and two aligned projections of opposite polarity at the other end of the armature, while for coils as in the lower half of the figure two polar projections would be provided at each end and displaced 90‹ from those at the other end. An alternative core construction is shown in Fig. 3, the armature slots not extending to the end faces of the core which is formed in two parts, one part unslotted to form one end portion.
Patent GB-194720-A (GB)
Title: Improvements in and relating to electric heating apparatus
IPC: H05B3/00
Filed: 1923-03-12
Abstract: 194,720. Seregni, E. March 12, 1923. Wire and ribbon resistances mounted on grooved surfaces.-An electric heating-unit comprises a series of separate insulating elements 4 shaped to form a spiral when assembled, and formed on their faces with one or more grooves 3 sufficiently deep to enclose completely one or more continuous electric conductors, each element of insulation abutting against its neighbours in adjacent turns of the spiral. The unit may be mounted on a metal or other support, or a layer or coating of insulating material may be applied.
Patent GB-829675-A (GB)
Title: Apparatus for mixing, kneading and squelching materials, especially chocolate
IPC: B01F15/02
Filed: 1958-03-05
Abstract: 829,675. Batch mixing apparatus. MOL -  LER, R. March 5, 1958, No. 7049/58. Class 86 Mixing, kneading and squelching apparatus, comprises a circular vessel 1, Fig. 1, a stirring arm 2, having strippers 3, 4 mounted for rotation on a shaft 5 extending through the bottom of the vessel, and an elongated binary 17 extending below and parallel to the bottom and adjacent the shaft, the housing accommodating two parallel interengaging conveyer worms 11 (only one of which is shown in Fig. 2) which withdraw materials from the vessel through an aperture 12 and return the materials to the vessel through an aperture 13. The shaft 5 is driven from a sprocket wheel 6 whilst the worms 11 are driven by gear wheels 16. A rake 14, adjustable by a lever 15, for squeezing and squelching purposes, is provided in the aperture 13. A feed hopper 7 and discharge shoot 8 are closable by slides 9, 10. When discharging the vessel, the direction of rotation of the worms is reversed.
Patent GB-1455901-A (GB)
Title: Low pressure indicating closure device for a pressurised container
IPC: B60C23/00
Filed: 1974-02-15
Abstract: 1455901 Low pressure indicators for tyres H C WINTHER W J WINTHER W J WINTHER S MCGINLEY WINTHER and C R WINTHER 15 Feb 1974 [15 Feb 1973 (2)] 7070/74 Heading B7C A device for indicating that the pressure in a container, e.g. a tyre, has fallen to below a predetermined value comprises a housing defining a bore, an annular valve seat 107 within the bore, a valve poppet 109 engageable with the seat under the influence of pressure in the container, means 114, 115 for biasing the valve poppet away from the seat, and a piston 120 which is moved to its illustrated position when the pressure within the container is insufficient to maintain the valve poppet in contact with its seat is when the pressure in the container is below the predetermined value. The housing may comprise axially aligned interengaging parts 101, 101<SP>1</SP>. Where the device is fitted on to a tyre inflation valve V an element 105 is provided for holding the valve V permanently open. The element 105 is not necessary where the device communicates directy with the interior of the container (Fig. 3, not shown). (For Figure see next column.)
Patent GB-589262-A (GB)
Title: Improvements relating to loom terry motions
IPC: D03D49/60
Filed: 1945-03-21
Abstract: 589,262. Loom terry motions. SCHEBESTA, G. March 21, 1945, No. 7089. [Class 142 (ii)] An arm D' operated by the shedding mechanism has a catch D for engaging a lever A to lock the reed R during beat up and an adjustable catch F. for engaging a lever G<1>, pivoted to the slay and linked to the lever A, to release the reed.
Patent GB-765201-A (GB)
Title: Improvements in or relating to grates for boilers and the like
Inventor: DENNISON WILLIAM EDMUND
IPC: F23H17/06
Filed: 1954-03-11
Abstract: 765,201. Grates. IDEAL BOILERS & RADIATORS, Ltd. March 2, 1955 [March 11, 1954], No. 7124/54. Class 126 [Also in Group XII] A grate comprises at least one grate member having limited rocking movement about a central axis and coplanar spaced apart fingers on either side of the axis, a fixed stop for limiting the rocking movement located below'the axis for engagement with a part on one side of the grate member, and movable stop means located below the axis on the other side of the grate member, which can be withdrawn to allow the fuel on the grate to be dumped. In a boiler having a water jacket at the back and sides of a firebox and an ash space below the grate, the grate comprises two toothed fire bars 9, 10 supported by trunnions 12 co-operating with front and rear bearing members 14, 15. The front bearing member 14 carries fixed stops 16 and a central movable stop 17 below the fire bars, limiting the angle through which the bars can be rocked by a tool engaging. the front trunnions 12, and inserted through holes provided in a recessed front panel 6. In order to dump the fuel, the movable stop 17 is withdrawn so that the fire bars may be turned through a greater angle. The shank 18 of the movable stop passes through the front panel 6 and has a circular part providing a shoulder which engages a member 21 bolted to the front panel 6 to limit the inward movement of the stop 17. Flats 24 engage a catch 22 to lock the stop 17 in its inner position. The outward movement of the stop 17 is limited by the rear face of the front panel 6. A hole 33 is provided for the insertion of a gas poker when lighting the fire, and the front wall 34 of the ash pan completely closes an opening in the lower part of the panel 6. An ash pit door having a catch engageable with a housing 26 formed on the stop abutment 21, encloses the recessed panel 6. The tool used to engage the trunnions 12 may have a part which engages the shank 18 to withdraw the stop 17.