baber/WOPTO huggingface dataset:
Patent GB-113014-A (GB)
Title: Improvements in Permutation Locks.
Inventor: PRADAL CLEMENTE
IPC: E05B37/12
Filed: 1917-02-28
Abstract: 113,014. Pradal, C. Feb. 28, 1917. Locks, permutation; sliding latches.- The movement of the bolt 82 is controlled by a series of elements 55, of the form shown in Fig. 10 working in recesses 30 of the shape shown in Fig. 3. To release the bolt, the elements must be set in a horizontal position with the points facing forward : if the forked end is forward the points 54 are caught by the trap springs 48 and movement is prevented. The combination can be changed from inside the door by disengaging the pins 16 from the disks 69 and returning them into different holes. In unlocking the door, each of the knobs 73 is turned until an electric or other alarm is sounded; the knob is then turned backward by counting the clicks of a ratchet until the required number is reached. The bolt 82 is operated by a sliding spindle 36 carrying springs 74. When the knob 83 is pulled forward the upper spring 74 is drawn into the socket 78 and is compressed; at the same time, the lower spring is released and is free to draw the bolt back. When the handle 83 is released, a spring 84 retracts the spindle 36; the lower spring 74 is then drawn back and compressed, and the upper spring is set free to shoot the bolt.
Patent GB-141307-A (GB)
Title: A child's rattle
IPC: A63H5/00
Filed: 1920-01-31
Abstract: 141,307. Hawkes, M. J. Bland-. Jan. 31, 1920. No Patent granted (Sealing fee not paid). Sound-producing toys.- A child's rattle is made in telescopic parts, the inner one carrying a doll's face which can be exposed or drawn back into the outer part. Fig. 1 shows the rattle with the face exposed. The face is fitted in the inner box-like slide 1, which also contains a spherical bell 10 and is provided with a handle 3 by which it can be operated. The outer part 2 is covered with fabric 4 . loosely connected to the handle at one end and disposed to form a hood or bonnet 11 at the other. The rattle may be ornamented with ribbons 5.
Patent GB-135065-A (GB)
IPC: B25D17/08
Filed: 1919-02-07
Abstract: 135,065. Jenkins, H. C., and Shiner, H. J. Feb. 7, 1919. Loose tools and bits, retaining. - A drill-retaining device comprises a spring c coiled on the nose of the machine and having two eyes d in which a bent shackle e is pivoted non- slidably, a bar or link f being adapted to slide on the shackle so as to allow passage of the collar on the drill shank and to engage the collar to retain the drill in position. Specification 16114/14 is referred to.
Patent GB-1536064-A (GB)
Title: Crystalline anhydrous magnesium chloride
IPC: B01J27/00
Filed: 1977-01-26
Abstract: 1536064 MgCl 2  supported olefin polymerization catalyst MONTEDISON SpA 26 Jan 1977 [30 Jan 1976] 3151/77 Heading C3P [Also in Division C1] An olefin polymerization catalyst comprises a crystalline form of MgCl 2  characterized by an X-ray diffraction spectrum in which the reflection lines of maximum intensity appear at lattice distances (d) of 5À90, 2À77 and 1À814 Angstroms (see Division C1) supporting a transition metal compound, and an organometallic compound of a metal of groups I-III. The transition metal compound is preferably a halogen-containing titanium compound, e.g. TiCl 4 , or a titanium halo alcoholate. The organometallic compound is preferably an aluminium trialkyl or an aluminium alkyl halide. The catalyst may also include an electron donor compound, preferably an alcohol ester of an aromatic acid.
Patent GB-754339-A (GB)
Title: Process for the production of nuclear substituted 4-amino-uracils
Filed: 1954-02-03
Abstract: The invention comprises nuclear substituted 4-amino uracils (1 : 3 : 5-trisubstituted 2 : 6-dioxo - 4 - aminotetrahydropyrimidines) of the general formula <FORM:0754339/IV(a)/1> wherein R1 and R2 represent alkyl or alkenyl radicals having at most 4 carbon atoms and R3 represents an alkyl, alkenyl, cycloalkyl, aryl or aralkyl radical wherein any aromatic nuclei can also be substituted by halogen or alkyl and a methylene group of an aliphatic chain (which methylene group may be attached to an aryl radical) can also be replaced by O or S; and processes for the preparation thereof.  In one process an N,N1-disubstituted urea R2NHCONHR1 is condensed with an a -substituted cyanoacetic acid <FORM:0754339/IV(a)/2> with or without a condensing agent such as acetic anhydride and the resulting trisubstituted cyano acetyl urea is treated with an alkaline agent, e.g. alkali metal hydroxide or carbonate.  The intermediate trisubstituted cyanoacetyl urea is also produced by reacting an a -substituted cyanaceto-N-alkylamide or -N-alkenylamide <FORM:0754339/IV(a)/3> with an alkyl isocyanate <FORM:0754339/IV(a)/4> Alternatively an N,N1-disubstituted urea is condensed in an anhydrous medium in the presence of an alkaline condensing agent such as a sodium alcoholate with an ester of an a -substituted cyanacetic acid.  In another method for the preparation of the trisubstituted 4-amino uracils (I) an alkyl or alkenyl radical is introduced into the 1-position of disubstituted 4-amino uracils <FORM:0754339/IV(a)/5> by treatment of the latter with halides or sulphates of alcohols in the presence of alkalis.  Examples illustrating the above processes describe the preparation of 1,3-diethyl-5-methyl- and 1,3-diethyl-5-isopropyl-4-aminouracil, and of 3,5-diethyl-1-n-propyl-, 1,3,5-triethyl- and 1,5-diethyl-3-allyl-4-amino-uracil.  Compounds in which the group R3 in the above general formul  has the following values are also mentioned: straight and branched chain alkyl radicals containing up to eight carbon atoms, allyl, crotyl, 2-methoxy-, 2-phenoxy- and 2-ethoxy-ethyl, 2-methyl- and 2-phenyl-mercapto-ethyl, 1- and 2-phenyl-ethyl, benzhydryl, phenyl and alkyl-substituted phenyl, benzyl, 4-chloro- and 3,4-dichloro-benzyl, p-methoxy-benzyl, p-methoxy-phenyl, and 4-chloro-, 3,4-dichloro- and 4-bromo-phenyl radicals.
Patent GB-1403015-A (GB)
Title: Autopilot systems for marine and other vessels
IPC: G01C17/28
Filed: 1972-07-31
Abstract: 1403015 Automatic control of course METAL MARINE PILOT Inc 31 July 1972 [27 Sept 1971] 03165/74 Divided out of 1403014 Heading G3R The subject-matter of this Specification is substantially the same as that described in Specification 1403014, but the claims are concerned with controlling the direction of a vessel.
Patent GB-451227-A (GB)
Title: Improvements in or relating to high frequency and like carrier signalling systems
IPC: H03G5/26
Filed: 1935-01-31
Abstract: 451,227. Wireless receiving systems. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and BLIGH, N. R., and SMYTH, C. N., c/o General Electric Co., Ltd., Wembley, Middlesex. Jan. 31, 1935, No. 3167. [Class 40 (v)] The selectivity of a receiver is regulated in accordance with the intensity or intensities of one or more carriers of frequency adjacent to the frequency to which the receiver is tuned. The Figure shows filters B1, B2 for frequencies, say 9Kc, removed from the intermediate frequency which may be 110 Kc. feeding a diode 3 having a load resistance 6. The signal frequency is applied to diode 10 having a load 11 and the difference voltage is applied to a valve 14 so that electromagnet 15 adjusts the selectivity by varying the coupling between filters A1, A2 so that the selectivity varies as the ratio of the interference to the signal carrier. The selectivity may be varied by purely electrical means, as described in Specification 430,507.
Patent GB-780934-A (GB)
Title: Improved air conditioner apparatus
IPC: F25B5/04
Filed: 1956-02-01
Abstract: 780,934. Ventilating vehicles. GENERAL MOTORS CORPORATION. Feb. 1, 1956 [Feb. 23, 1955], No. 3177/56. Class 137 [Also in Groups XIII and XXII] In an air conditioner for the passenger compartment 10 of a vehicle, air is blown by a fan 70 over a heat exchanger having two sections in direct heat exchange with each other, through one of which 32 flows refrigerant circulated by a compressor 16 and through the other 54 flows hot water from the engine of the vehicle. The quantity of hot water passing through the heat exchanger is varied by a valve 64 controlled by a bulb 66 responsive to the temperature of the passenger compartment.
Patent GB-541364-A (GB)
Title: Improvements in and relating to electric switches and to thermostats and other instruments incorporating said switches
IPC: H01H5/02
Filed: 1940-02-20
Abstract: 541,364. Indicating-apparatus. BAKER, P. W. Feb. 20, 1940, No. 3208. [Class 106 (iv)] [Also in Groups XXXVII and XIII] A movement-magnifying. mechanism. applicable to pressure indicators, switches &c. comprises a rigid thrust rod 2 connected as by a screw 27 to a flexible pull member 1 making a small angle with it, movement of the free end of the rod 2 or member 1 in the direction of its length causing a bigger sideways movement of the point 27. As applied to a switch operated by a dolly 32 movement of the dolly causes a spring 17 to flex about its lower end and a point 26 to move upwards so that a contact 29 carried by the spring 1 moves to the right while a contact 30 carried by the spring 17 moves to the left. A snap action is given by providing an armature 28 which cooperates with a magnet 21. In a modification, Fig. 2 (not shown), the dolly 32 is replaced by a thermal actuating mechanism of the rod and tube type. In this modification the tube may be of porcelain and the rod inside it of silica. Fig. 3 shows an electromagnetic switch. On de-energization of the magnet, the armature 49 is pulled upwards by a spring 3, the small movement of the left-hand end of the horizontal part of the spring 3 producing a larger movement of the point 48.
Patent GB-1004889-A (GB)
Title: Acrylic fibers with improved properties
IPC: C08K5/101
Filed: 1964-01-24
Abstract: A composition, used for making flame resistant fibres, comprises an acrylonitrile polymer and an ester of a bromine or chlorine substituted aliphatic acid.  The acrylonitrile polymer may be polyacrylonitrile, or copolymers or terpolymers of acrylonitrile with other ethylenically unsaturated monomers. Many suitable comonomers are listed.  The polymer may also comprise a composition of an acrylonitrile polymer with another polymer.  Many suitable esters are specified.  In the examples, acrylonitrile/vinyl acetate copolymers are mixed with dimethyl acetamide as solvents and the esters methylpentachlorostearate, glyceroltripentachlorostearate, methyl octachlorostearate, methyl octachlorolaurate and methyl decachlorolaurate. In two of the examples, the ester is added in a sufficient quantity to act also as a plasticizer.  Addition additives exemplified are antimony trioxide and dibutyltin oxide.  The composition is spun into fibres using conventional teckniques.
Patent GB-1193011-A (GB)
Title: Amplifier for Trivalent Pulse Signals the Pulses of which Occur at Instants determined by a Clock-Frequency
IPC: H03K5/00
Filed: 1968-01-22
Abstract: 1,193,011. Digital transmission systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 22 Jan., 1968 [24 Jan., 1967], No. 3247/68. Heading H4P. A regenerative repeater for bipolar data includes a clock pulse recovery circuit comprising a differentiator 12, full wave rectifier 4, threshold unit 5, and tuned circuit 7. Circuit 7 generates a clock frequency at the element rate of the signal to be regenerated and applies it via phase shifter 8 and shaper 9 to gating unit 2 which delivers the reshaped bipolar data. The threshold unit 5 passes only pulses corresponding to transitions in the bipolar data directly between positive and negative signal elements, and vice versa. The data is also limited at 13 and fed to differentiator 14 and rectifiers 15, the resulting needle pulses being gated at 16 with the relatively wide pulses from the threshold unit 5. To counteract the fall in output of tuned circuit 7 when the time between successive position-negative transitions is long, the output is rectified at 20 and filtered at 21. The resulting D.C. signal controls the threshold level of a threshold unit 19 which is fed by the rectified bipolar data. When the output of circuit 7 falls, the threshold level is reduced and the peaks in the rectified data pass to circuit 7 to excite it and increase its output voltage.
Patent GB-983086-A (GB)
Title: Improvements in snow ploughs
IPC: E01H5/06
Filed: 1963-01-25
Abstract: 983,086. Snow ploughs. A. J. GERRY. Jan. 27, 1964 [Jan. 25, 1963], No. 3270/63. Heading E1G. The supporting frame of a snow plough blade has means for attachment to the usual lift points of a tractor. The blade 1 has a lower rectangular portion with a resiliently mounted leading edge 6 and an upper tapered plate inclined to the lower plate. The plates are stiffened by angles 5 and are connected to a shallow ballast tray 10 by angle struts 11, 12, 13, 14. The plough may be attached to the tractor by rear points 15, 16 for pushing or by front points 17, 18 for pulling. The lower edges of side reinforcing plates 4 are extended to prevent damage if the blade is dropped.
Patent GB-888447-A (GB)
Title: A probe for use in leak-detecting system
IPC: G01M3/22
Filed: 1960-01-29
Abstract: 888,447. Detecting leaks in pipes. GENERAL ELECTRIC CO. Jan. 29, 1960 [Feb. 17, 1959], No. 3275/60. Class 99(2). [Also in Group XIX] A probe for use in a leak-detecting system comprises a mixing chamber 3 and three passageways 2, 30, 35 connected to it, one of the passage ways 35 leading to the outside of the probe housing and containing a variable orifice 29. A tracer gas is introduced to the article e.g. a closed vessel or a pipe, to be tested and flows through the passage 35 into the chamber 3 if the probe is passed over a leak in the article. A flow of air is conducted to the chamber 3 through the passage 2 and the resulting mixture is drawn by a vacuum pump (not shown) along the passage 30 to a unit sensitive to the tracer gas. This unit may include an electrical gas discharge device in which the tracer gas induces positive ions at a rate varying with its concentration. These ions are collected at a cathode and produce a current indicative of the concentration of the gas, which may actuate a warning or indicating device. It is stated that by changing the size of the orifice 29, by rotation of the adjustable cap 33, and so altering the proportion of tracer gas-to air, the sensitivity of the system may be kept at a high level even if the amount of background tracer gas surrounding the workpiece varies. The sensitive element may be reactivated by passing uncontaminated air over-it and this is achieved by completely closing the orifice 29. To enable leaks to be indicated the probe body is transparent and contains a warning lamp (not shown).
Patent GB-337305-A (GB)
Title: Process and apparatus for treating textile threads and fabrics
IPC: D06L4/50
Filed: 1930-01-31
Abstract: 337,305. Hoffmann, O. Feb. 9, 1929, [Convention date]. Bleaching, processes and materials for.-Linen &c. previously uniformly and not too heavily moistened is kept in constant and uniform movement in a treating space during the whole of a treatment with ozone at low concentration which does not exceed 2 grammes per cubic metre of air and is preferably from a tenth to a fifth of that concentration. Air, ozonized by a silent electrical discharge, is moistened before being introduced ir.to a treating chamber g by several nozzles disposed in one side wall thereof, corresponding nozzles on the opposite side wall withdrawing the used air, after it has passed transversely across the fabric to be treated, to a drier ready for further ozonizing. Fabric from a receptacle 5 passes through a water seal 3 to squeezing rollers 4 within the chamber g and thence over upper rollers 1 and beneath lower rollers 2 in a zigzag path to a second water seal 3<1> and squeezing rollers 4<1> disposed outside the chamber. Most of the rollers 1 are freely rotatable, but some may be geared together to rotate in unison to assist in feeding the fabric through the chamber.
Patent GB-1171493-A (GB)
Title: Machine Tools
IPC: B23Q17/00
Filed: 1967-01-24
Abstract: 1,171,493. Machine tools. ERNST LEITZ G.m.b.H. 24 Jan., 1967 [26 Jan., 1966], No. 3423/67. Headings B3B and B3K. A machine tool under electric programme control comprises a plurality of tool-heads 25, 26, each having its own motor 21, 22 and a drive for moving a work-table 12 intermittently or continuously alone or simultaneously with at least one tool-head. The tool-heads may be adjustable angularly and one may have several spindles for cutting several threads simultaneously. A stand 10 supports vertically movable slides 15, 16 carrying horizontally-movable slides 17, 18 carrying a feeding means 23 for the head 25 and the tool-head 26. Each motor 21, 22 can be fitted to the opposite end of its associated gear-box 19, 20. The feeding means 23 is connected to a valve unit 29 and a pump or compressor 30. A further head (35) carries a face-plate which is rotatable or indexable. The table 12 is connected to a piston 40 to which air may be applied through a valve 44. Its speed is governed by oil passing through a valve 43 to a piston 41. The valve 43 may be a multiple device for obtaining different speeds. Both pistons 40, 41 may be contained in one cylinder. One of the tool-heads may be similarly moved.
Patent GB-197278-A (GB)
Title: Improvements in or relating to laced foot wear
IPC: A43C1/02
Filed: 1923-02-05
Abstract: 197,278. Faulkner, J. Feb. 5, 1923. Laces.-For lacing a shoe an elastic lace a is provided having a fastening device b which is located between the tongue and the upper, and is composed of a thin flat frame having three transverse bars b<1>, b<2>, b<3> the bar b<3> having inwardly projecting teeth d. One end of the lace is attached to the bar b<1> by sewing and the free end is threaded between the bars, as shown in Fig. 5.
Patent GB-576288-A (GB)
Title: Improvements relating to the electric heating of washing machines or wash boilers
IPC: H05B3/00
Filed: 1944-02-24
Abstract: 576,288. Electric wash boilers. WHITE, H. A. N. (trading as NOLAS DISTRIBUTING CO.). Feb. 24, 1944, No. 3468. [Class 39 (iii)] The sump b of a wash boiler a has a detachable base plate c carrying electric immersion heaters d projecting into the sump beneath a canopy j at the base of the wash boiler so that the heater d may be readily removed with the base plate. Bolts g attaching the base plate to the sump also support a cover e spaced by nuts h from the base plate. The cover has an aperture f to allow air to flow over the terminals of the heater. The canopy j with apertures k or a domed perforated. plate m prevent articles entering the sump. A tube may extend down into the sump to aid water circulation.
Patent GB-104691-A (GB)
Title: Improvement in Method of Providing Substructures for Structures.
Inventor: WHITE LAZARUS
IPC: E02D27/48
Filed: 1917-03-09
Abstract: 104,691. White, L. March 10, 1916, [Convention date]. Piles, driving.-A structure is underpinned by removing the soil down to the level of the slab footings of the existing piers 1, and then enclosing the footings in a grillage frame formed of girders 3, 5, which may be dowelled to the footings. The frame is then filled with, and embedded in, concrete 6, and a pit is dug between the piers and under the concrete. Pile tubes 7 in sectional lengths are next driven by an hydraulic jack 8, which bears on the grillage, each pile being subjected to a pressure in excess of its normal proportion of the permanent load. While this pressure is maintained on the pile, the interior thereof is excavated and filled with concrete; struts 14 are inserted and wedged against the grillage until the load is transferred from the jack to the pile. When all the piles have been driven and loaded in this manner, the pit is filled up with concrete to enclose the struts. A foundation for a building in course of erection may be formed in a similar manner.
Patent GB-489952-A (GB)
Title: The preparation of disubstituted amides of coumarin-3-carboxylic acid
IPC: C07D311/12
Filed: 1937-02-05
Abstract: Disubstituted amides of coumarin-3-carboxylic acid, in which the substituents consist of methyl, ethyl or propyl groups, are prepared by reacting the acid chloride with the appropriate dialkylamine.  The products possess therapeutic properties. Examples are given of the preparation of the dimethylamide, diethylamide, methylethylamide and methylpropylamide.
Patent GB-438021-A (GB)
Title: Apparatus for automatically regulating the attitude, course or speed of an aircraft
IPC: G05D1/08
Filed: 1934-02-02
Abstract: 438,021. Automatic control of aircraft. SIEMENS - APPARATE UND MASCHINEN-GES., 4, Askanischer Platz, Berlin. Feb. 2, 1934, No. 3540. Convention date, Dec. 19, 1933. Addition to 438,020. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 4, 1934.] [Class 4] Apparatus for regulating the speed of an aircraft comprises a diaphragm 1, loaded by an adjustable spring and measuring the relative air speed, which is connected to the control valve 10 of a fluid pressure servo-motor which comprises a differential piston 37. The pressure inlet pipe has a throttle valve 51 and leads to the chamber 1<a> and the chamber below the piston 37. Movement of the control valve 10 varies the area of the passage 37<1> connecting the chamber 1<a> to the exhaust pipe 40. The movement of the piston 37 is proportional to the speed of the aircraft. A piston 42 of a dashpot is connected to the piston 37 and retards its movement so that a pressure is developed in the chamber 1<a> which is proportional to the velocity of the piston 37, i.e. proportional to the rate of change of the speed of the aircraft. This pressure is transmitted through the port 37<11> to a piston 43 loaded by springs 44, 45. The piston 43 is connected to the control valve 24 of a servo-motor connected to an elevator 26. Oscillations of the aircraft about the transverse axis are damped by influencing the servo-motor by a further control which is derived by measuring the angular velocity of the aircraft about this axis. This may be effected by mounting the rotational axis, 54<1>, of a gyroscope 54, parallel to the longitudinal axis. The precessional movement of the gyroscope is restrained by the springs 49 and the movement is transmitted to the control valve 24. In a modification, the diaphragm 1 may be replaced by a pendulum measuring the inclination of the aircraft about the transverse axis. In a further modification the diaphragm is replaced by an instrument measuring the side slip of the aircraft, e.g. a transverse pendulum, and the gyroscope is arranged to indicate the angular velocity about the longitudinal axis in which case the servo-motor actuates the ailerons. The apparatus is adaptable for course control of aircraft.
Patent GB-538034-A (GB)
Title: Outlet valve for air-compressors
IPC: F04B39/10
Filed: 1940-02-26
Abstract: 538,034. Valves. JONES, T. R. Feb. 26, 1940, No. 3542. [Class 135] An outlet valve fitting for an air compressor comprises a poppet valve member 8 with a hollow valve spindle having a closed end slidably mounted on a pin 6 having an axial passage 7 secured to the valve seat 3. The seat member 3 has a series of passages 5 and is externally threaded to engage a threaded aperture in the cylinder head with its lower face flush with inner surface of the head. The outlet conduit 14 is formed integrally with a housing 12 engaging a screw-threaded flange 4 on the seat. A loading spring 13 is arranged between the upper part of the housing and the back of the valve member.