baber/WOPTO huggingface dataset:
Patent GB-259633-A (GB)
Title: Improvements relating to the manufacture of welted boots and shoes
IPC: A43B9/06
Filed: 1925-05-09
Abstract: 259,633. Shoe Inventions, Ltd., and Rice, F. E. May 9, 1925. Connecting uppers to insoles and soles; welts and welting.-In a shoe in which an upper 1, Fig. 2, is stitched to an insole 2 in the usual manner and turned back under a welt 4, independent stitches 6 are used to attach the turned back upper and the welt, so that when an outer sole 7 secured by other stitches, shown dotted is removed, the upper, welt and stitching are held together for resoling without affecting the waterproof qualities of the shoe. The upper 1 is skived in the vicinity of the stitching 4<A>, and is solutioned to the under side of the welt. A bottom filling 8 is provided, the layer next the insole being preferably raw rubber, or rubber compound, or the welt seam and stiches may be covered with raw rubber or adhesive tape 8A. The filling is preferably cork sheet. In a modification, Fig. 3, a second welt strip 4<B> is incorporated to sandwich the upper 5. Specifications 244,530 and 257,963 are referred to.
Patent GB-1493912-A (GB)
Title: Pyrotechnic sealing material
IPC: C09K3/10
Filed: 1976-03-25
Abstract: 1493912 Pyrotechnic compositions DYNAMIT NOBEL AG 25 March 1976 [27 March 1975 18 April 1975] 12156/76 [Also in Division F2] A sealing cord comprises a core of a pyrotechnic mixture located in a casing of heat foamable elastomeric material, the core being separated from the casing by a flexible covering. The pyrotechnic mixture may comprise Si, Fe, or Ni as a combustible constituent, Fe 2 O 3 , MnO 2 , or barium nitrate as an oxidizing agent, CuO or V 2 O 5  as a deflagration regulator, CaSO 4  as a moderator, and polyvinyl acetate as a binder.
Patent GB-1423574-A (GB)
Title: Method of and an apparatus for correcting position errors in railway tracks
IPC: E01B35/00
Filed: 1973-03-14
Abstract: 1423574 Correcting the position of railway track FRANZ PLASSER BAHNBAUMASCHINEN - INDUSTRIEGESELLSCHAFT mbH 14 March 1973 [14 March 1972] 12227/73 Heading B7N [Also in Division G1] In an arrangement for correcting positional errors in a railway track in which a reference line extends from a corrected section past a correcting zone to a position in the uncorrected section of the track, a first sensing arrangement is provided for measuring the distance between the reference line and the track in the corrected section, a second arrangement measures this distance at the track zone being corrected and the shifting of the track in the correction zone is stopped when these measurements are in a predetermined ratio which can be modified by an operator to take account of the error in the position of the end of the reference line in uncorrected track.
Patent GB-1271784-A (GB)
Title: Improvements relating to electric timepieces
IPC: G04C3/12
Filed: 1970-03-13
Abstract: 1,271,784. Electric timepieces; controlling vibration amplitude. SUWA SEIKOSHA K.K. March 13, 1970 [March 14, 1969], No.12299/70. Headings G3R and G3T. The amplitude of vibrations of a tuning fork vibrator for a timepiece and driven by an electrostrictive element 13, Fig.2, from a circuit controlled by an electrostrictive pick-up element 11, are maintained at a predetermined value by a further control circuit which changes the impedance of the drive circuit to control the amplitude. Fig. 2 includes a known oscillator arrangement (as illustrated in Fig. 1 (not shown)) wherein the pick-up element 11 detects the fork vibrations and controls a driving transistor 17 connected to a step up auto-transformer 15 and source 18 thereby energizing the driving element 13 to maintain the fork oscillation. However, to control the vibration amplitude a further electrostrictive pick-up element 24 is provided whereby if the said amplitude increases, the potential at a point 23 will change. If the negative peak voltage at this point exceeds a predetermined value, as set by a diode 20, current flows through the diode and charges the capacitance of the electrostrictive element 24. The average value of the voltage at 25 thereby increases. This voltage is divided by R25 and R26. The divided voltage is proportional to the amplitude of vibration and when it exceeds a predetermined value a transistor 23 conducts turning off transistor 17 so that the vibration amplitude will no longer increase. As the amplitude decreases Tr23 cuts off and Tr17 conducts to increase the amplitude of vibrations. In an alternative embodiment Fig. 3 (not shown) a single element (48) fulfils the functions of the elements 11 and 23 in Fig.2 The location of the above circuit components in a watch is illustrated in Fig.4 (not shown), a gear train being driven directly by the vibrator fork.
Patent GB-575598-A (GB)
Title: Improvements relating to thermionic valve circuits of the type having one stable limiting condition of operation and one unstable limiting condition of operation
IPC: H03K3/06
Filed: 1944-06-28
Abstract: 575,598. Thermionic valve circuits. FERRANTI, Ltd., and THOMAS, G. I. June 28, 1944, No. 12338. [Class 40 (v)] In a multi-vibrator having one stable state, a normally conducting control valve is capacitatively coupled to an output valve normally made non-conducting by a current in a cathode resistor. On triggering, the control valve is suppressed, the positive pulse from its anode causing the output valve to conduct. To prevent the output valve being biassed off by its own anode current through the common cathode resistor, the cathode is connected by condenser to a tapping on the anode resistor of the control valve, the rise of cathode voltage being thus transmitted through the capacitative coupling to the grid of the output valve. In the Figure, the values of resistances 7 and 9 are arranged so that the potential developed across 9 is not less than that developed across 7. An incoming negative pulse on its grid causes a positive pulse on the anode operating through coupling condenser 14 to render output valve 16 conducting, the resulting heavy current in the resistor 7 biassing off valve 1. The output is also taken from resistor 7. The rise in cathode potential transmitted to the grid of valve 16 through condenser 13, resistance 9 and condenser 14 enables valve 16 to continue to conduct. The charge on condenser 22 maintains the screen grid potential constant to keep the amplitude of the' output pulse constant. On the discharge of condenser 14 through resistance 17, condenser 3 having now partially discharged, the fall in cathode potential allows valve 1 to conduct again, thereby applying the voltage developed across resistance 9 to cut off the valve 16 so terminating the pulse. A triode may alternatively be used as control valve and triggering can be effected by means of a positive pulse on the cathode.
Patent GB-1465924-A (GB)
Title: Oil-filled electrical device
IPC: C10M105/18
Filed: 1974-03-20
Abstract: 1465924 Dielectric oils NISSAN ELECTRIC CO Ltd and SUGAI CHEMICAL INDUSTRY CO Ltd 20 March 1974 [29 March 1973] 12371/74 Heading C5F A 2-alkoxydiphenyl, in which the alkyl group contains not more than eight carbon atoms, or a mixture of such alkoxydiphenyls is used as dielectric in an electrical device, e.g. a condenser, a transformer or a cable.
Patent GB-220067-A (GB)
Title: Improvements in and relating to anti-splash guards for road vehicles
IPC: B62D25/18
Filed: 1923-05-09
Abstract: 220,067. Pickup, J., and Patterson, J. E. May 9, 1923. No Patent granted (Sealing fee not paid) Lateral-splash guards k for road vehicles having peripheral mud-guards a mounted on supports c, e fixed relatively to the wheel axles are mounted on the peripheral guard or its support by articulated arms or links j so as to be capable of a rising and rearward movement, as well as a lateral movement towards the wheel. The splash guards may be arranged to be raised when a brake or other lever is operated, an adjustable wire h<2> being attached to the lever and to a crank arm h' fixed to a link pivot. The link pivot may extend across the vehicle so that a guard on the opposite side is simultaneously operated. Alternatively, the guard may be raised automatically by a spring which encircles a link pivot, and is normally restrained from raising the guard by a latch m<1> Fig. 5, carried by a trip lever m<2> and engaging one of the links j, the lever being adapted to be struck bv the kerb &c. Manual operation may be combined with the automatic device by pivotally mounting the trip lever m and then using a strong spring n, Fig. 6, to hold the lever and thus the guard in operative position against the action of the spring provided for raising the guard. The brake lever is connected to an arm m<4> of the trip lever, which can then be drawn back against the action of the spring n and the guard allowed to rise.
Patent GB-634843-A (GB)
Title: Improvements in or relating to hydraulic control mechanisms
IPC: B63H25/28
Filed: 1944-09-29
Abstract: 634,843. Steering ships. DONKIN & CO., Ltd., PAULIN, W. S., and STOREY, E. Sept. 29, 1944, No. 12452. [Class 114] A steering gear having both power pump and manual pump operation has an isolating valve which automatically isolates the power pump from the operating rams when the gear is changed over to manual operation, and vice versa. The steering gear is operated when under power actuation by the pump 26, the stroke varying mechanism of which is connected to the valve 21. This valve is positioned by the hunting gear 48, 49, 51, and in its central position isolates the pump 26 from the ram cylinders 14, 15. The valve is opened by the telemotor gear 55, operated by the hand pump 63 when the steering wheel 87 is turned. For hand actuation the valve 60 is thrown over, byepassing the pipes 57, 58 and directing fluid from the hand pump 63, or a separate pump 74, to the ram cylinders through the pipes 70, 71. Under hand operation the spring 64 centralizes the valve 21 and so isolates the ram cylinders from the power pump. Pipes 114, 115 are provided to connect the pump to the fluid reservoir for making up or returning overflow fluid. Specification 452,723, [Group XXVIII], is referred to.
Patent GB-1010991-A (GB)
Title: Alkyd resins
Inventor: BOAST NEVINSON GEORGE
IPC: C08G63/676
Filed: 1961-04-06
Abstract: Alkyd resins having shorter drying times and faster drying rates are the polyesterification product of (a) a polyhydric alcohol, (b) a dicarboxylic acid or anhydride, (c) an unsaturated fatty acid and (d) a furoic acid of formula <FORM:1010991/C3/1> where R1, R2 and R3 are hydrogen atoms, methyl groups or ethyl groups; the molar amount of furoic acid constituting at least 5% (and preferably less than 80%) of the total molar amount of the unsaturated fatty acid and the furoic acid.  All the reactants may be heated together simultaneously or the furoic acid may first be heated with the fatty acid followed by the addition of the other reactants. Specified reactants are:-for (a), glycerol, tetramethyrol cyclohexanol, mannitol, sorbitol, pentaerythritol, polypentaerythritol, trimethylol propane and trimethylol ethane; for (b), phthalic acid and anhydride; for (c), soya fatty acids, linseed fatty acids and oleic acid. The resins are made into a coating composition by dissolving them in a solvent (e.g. xylene or white spirit) and, possibly, adding a pigment (e.g. titanium dioxide) or a drier (e.g. cobalt naphthenate).
Patent GB-229994-A (GB)
Title: Film winding device for motion picture apparatus
IPC: G03B21/43
Filed: 1924-05-22
Abstract: 229,994. PathÚ Cinema, Anciens Etablissements PathÚ FrÞres. March 1, 1924, [Convention date]. Kinematograph apparatus.-A storage chamber beneath the feed mechanism receives the iorward end of the film, and the film is wound into the chamber bv means of a driven disc Z having a core 5 secured to it, a ring 6 being loosely supported by the core and contacting with the forward end of the film. The surface of the ring 6 may be provided with studs or faced with india-rubber &c., and the disc 2 may be inclined or placed horizontally. The chamber may have one side in the form of a removable glass plate 7. Specification 227,779 is referred to.
Patent GB-584668-A (GB)
Title: Improvements in or relating to apparatus for measuring voltages in high frequency electrical transmission lines
IPC: G01R19/28
Filed: 1942-09-05
Abstract: 584,668. Measuring voltages. COLLARD, J. Sept. 5, 1942, No. 12620. [Class 37] Apparatus for measuring voltages in a high-frequency transmission line 1, 2, or a wave guide, comprises a leaf 5 of electrically conducting material mounted in a screen or shield 7 attached at one end to one of the conductors of the line or to the wall of the guide. If the screen 7 is short circuited at 6, the length is made equal to an integral number of half wavelengths, while if the leaf 5 is insulated at the top end, the screen is an integral number of quarter wave-lengths. Thus the effective electrical length of the leaf is the length of the part extending beyond the screen and is thus short compared with the working wavelength. Its physical length is great, however, and provides good deflection sensitivity. In a modification, Fig. 2, not shown, the transmission line is horizontal and the screen containing the leaf is arranged vertically with the end of the leaf projecting into the line or guide. The movement of the leaf may be observed by a microscope through an aperture in the line or guide. The arrangement may be calibrated by the method described in Specification 584,251.
Patent GB-149902-A (GB)
Title: Improvements in brakes, more especially designed for use on automobile vehicles
IPC: F16D51/40
Filed: 1919-04-15
Abstract: 149,902. Schmitz, R. April 15, 1919. Blocks and the like acting on axles, drums, or hubs.-A brake particularly for automobiles comprises a number of shoes 15 pivoted at 13 to a fixed plate 11 and adapted to be forced against and withdrawn from the drum 5, 8 by rollers 18 mounted at 19 upon a rotatable plate 20 and en. gaging in U-shaped recesses 16 formed in the shoes 15. The recesses 16 are nearly radial so that the initial outward movement of the brake shoes is rapid. The plate 20 has an extension for the attachment of the connexions to the foot lever by which it is given a part rotation to actuate the shoes 15, and there is clearance between it and the axle 10 to permit limited bodily movement of the plate to ensure equalization of pressure on the several shoes. One of the bolts 13 extends through an anchoring-plate 11<a>, The inner ends of the pivots 19 of the rollers 18 may be mounted in a plate 25. The drum 5, 8 is bolted at 7 to the wheel spokes 4 and hub flanges 2, 3. Specification 147,274, [Class 80 (ii), Gearing, Variable-speed &c.], is referred to.
Patent GB-130754-A (GB)
Title: Improvements relating to Suction Gas Producers.
IPC: C10J3/80
Filed: 1918-08-06
Abstract: 130,754. Barrow, L., Scott, S. M., and Cadbury Bros. Aug. 6, 1918. Generators or producers.-In gas-producers for mechanically-propelled vehicles, water or steam at or near atmospheric pressure is admitted to an adjustable slotted nozzle d arranged in the path of the incoming air, the opening of the slot being varied by a. sleeve f operated by means of a hand lever g. The nozzle is connected with a. float chamber by a pipe provided with a float-actuated or other valve c. The admission of air may be regulated by means of a slide l.
Patent GB-705370-A (GB)
Title: Method of preparing racemic and levo-rotatory chloramphenicol from 1-acetoxy-3-oxo-3-phenyl-propane
Filed: 1950-05-22
Abstract: A method of preparing (dl)-threo-1-p-nitrophenyl - 2 - dichloracetamino - 1, 3 - propandiol or (l)-threo-1-p-nitrophenyl-2-dichloracetamino-1, 3-propandiol (chloramphenicol) comprises reacting 1 - acetoxy - 3 - oxo - 3 - phenyl - propane with a nitrite in the presence of an acid to form 1-acetoxy-2-isonitroso-3-oxy-3-phenyl-propane, reacting such product under such mild conditions that the 3-oxo group is unchanged with a reducing agent in the presence of an acetylating agent to produce 1-acetoxy-2-acetamino-3-oxo-3-phenyl propane, reducing the latter with a more vigorous reducing agent to obtain a mixture of the diastereoisomeric threo and erythro form of 1-acetoxy-2-acetylamino-3-phenyl - 3 - propanol, treating the mixture obtained with concentrated sulphuric acid as in Specification 671,531, subjecting the oxazoline derivative so formed in the sulphuric acid solution to the action of fuming nitric acid, extracting the nitrated product with a water-immiscible organic solvent, hydrolyzing the nitrated product with dilute hydrochloric acid to effect opening of the oxazoline ring with the formation of (dl)-1-p-nitrophenyl-2-amino-1, 3-propandiol of only threo form and then either subjecting the product to N-dichloracetylation to form the (dl)-threo-1-p-nitrophenyl-2-dichloracetamino-1, 3-propandiol, or to resolution into the d- and l-rotatory isomers as in Specification 674,015 and N-dichloracetylating the separated 1-isomer to form the (l)-threo-1-p-nitrophenyl-2-dichloracetamino-1, 3-propandiol (chloramphenicol).  In the first stage sodium nitrite in acetic acid or an alkyl nitrite in ether in the presence of hydrochloric acid may be employed.  The intermediate products need not be isolated.  In an example illustrating the process the 1-acetoxy-2-isonitroso-3-oxo-3-phenyl-propane is converted by reaction with zinc, acetic acid and acetic anhydride to the 1-acetoxy-2-acetamino-3-oxo-3-phenylpropane.  The latter is hydrogenated using a palladium-carbon catalyst to give the 1-acetoxy-2-acetamino-3-phenyl-3-propanol, the remaining stages being carried out as above.  Specification 652,273 also is referred to.
Patent GB-623685-A (GB)
Title: Endless cable for stone cutting saws
IPC: B23D61/18
Filed: 1947-05-12
Abstract: 623,685. Sawing stone. SOC. ANON. DES CARRIERES DE L'OISE ET DE LA MEUSE. May 12, 1947, No. 12829. Convention date, Feb. 18. Drawings to Specification. [Class 124] An endless cable for stone-cutting saws is constituted by a single strand extending two or more times round the circuit of the cable. The wire may be of rectilinear section with the ends crossed over the cable and welded or the cable may be formed by taking one strand of a twostrand cable and reforming the cable during the second circuit. If a three-strand cable is used the single strand will make three circuits to reform the cable. Hard cutting elements are slipped on to the cable during its formation. Specification 623,686 is referred to.
Patent GB-109642-A (GB)
Title: Improvements in Artificial Arms and the Fittings therefor.
Inventor: MCKAY PETER MURRAY
IPC: A61F2/58
Filed: 1916-09-14
Abstract: 109,642. McKay, P. M., and Brickell, R. W. Sept. 14, 1916. Fixing by sockets, tangs and the like; locking catches and pawls.-An artificial arm is fitted with a metal wrist block c formed with a screw threaded recess to receive a plug g having a grooved bore f internally flanged at the inner end. The tool or other fitting is formed with a stem m toothed at n to engage the grooved plug g and grooved at m<1> to engage a spring pressed lever j, Figs. 2 and 5, attached to the arm socket a. The tools &c. may be inserted at any angle but are kept from rotation when in place by the toothed stem. Figs. 6 and 7 and Fig. 8 show spring grips adapted to hold the handles of shovels, saws, or other tools and attached to the arm in the manner above described. In the form shown in Fig. 8 the toothed boss n may be mounted between collars t so as to revolve loosely on the stem m.
Patent GB-1260714-A (GB)
Title: Address coded communication system
Inventor: EGGIMANN FRITZ
IPC: H04W99/00
Filed: 1969-03-13
Abstract: 1,260,714. Radio signalling. PATELHOLD PATENTVERWERTUNGS - UND ELEKTRO-HOLDING A.G. 13 March, 1969 [15 March, 1968], No. 13233/69. Heading H4L. In a random access discrete address system, wherein information is transmitted by pulse modulation, means are provided for periodically transmitting in the information channel a sequence of pulses each pulse being coded in the frequency-time plane with the address of the called station but carrying no other information signal. The pulse modulation signals may also be address-coded in the same manner. At the receiver the sequence of pulses is extracted and supplied to a shift register and on the receipt of a predetermined number of address signals the contents of the register are erased and the receiver is synchronized to the incoming signal. The receiver may be provided with means for recognizing several different addresses. On receipt of the correct address signal the called station may be arranged to transmit its address back to the calling station.
Patent GB-746442-A (GB)
Title: Method of and apparatus for decaking retorts
IPC: C22B19/06
Filed: 1954-05-06
Abstract: 746,442. Cleaning tubes. DOMINION MAGNESIUM, Ltd. May 6, 1954 [June 5, 1953], No. 13246/54. Class 99(2). In apparatus for removing scale from retorts, particularly those used in the production of metals, a number of flexible strands or chains 9 are mounted on a holder 7 carried by the shaft 4 of an air motor 3 enclosed by a casing 6 which is provided with a number of external, longitudinal fins 14 and end closing members 12 at least one of which has ports 13 for the delivery, of jets of air, the air being supplied under pressure by an inlet 2 to the casing. As shown in Fig. 4, the apparatus is inserted into the retort 18, the fins 14 spacing the casing 6 from the wall of the retort and the stem 2 being carried in a roller support 17. Air exhausted from the motor and through the ports 13 is directed onto the scale 20 which becomes brittle and is simultaneously struck by the chains 9, the loosened scale being raked from the retort.
Patent GB-594254-A (GB)
Title: Balanced electric relays or switches
IPC: H01H51/12
Filed: 1945-05-28
Abstract: 594,254. Electromagnetic relays. ALLMANNA S V E N S K A ELEKTRISKA AKTIEBOLAGET. May 28, 1945, No. 13277. Convention date, June 9, 1944. [Class 38(v)] A relay comprises two parallel electromagnets 2 having pole pieces 4 extending at right angles to the axes of the magnets and at both ends of the magnets. The armatures of the magnets are attached to a common balance arm pivoted at 7 and they may be formed in one with the balance arm which may consist of a sheet iron trough 6 embracing the pole pieces at both ends of the magnets. The bottom of the trough may be cut away at each end as shown at 14 to leave the depending side portions 8 to serve as armatures. The parts 8 may be bent towards or away from the pole pieces to vary the air gap. The moving contacts 12 are carried by a leaf spring 11 fixed at 10 and engaging at its free end in an opening in an arm 9 projecting from the member 6. When the member 6 rocks about its pivot 7 it brings one of the contacts 12 into engagement with the corresponding fixed contact 13.