baber/WOPTO huggingface dataset:
Patent GB-556906-A (GB)
Title: Apparatus for soil fertilisation
IPC: A01C23/02
Filed: 1942-03-18
Abstract: 556,906. Treatment of soil. FIFE, J. G. (Shell Development Co.). March 18, 1942, No. 3597. [Class 6 (i)] Anhydrous ammonia is fed beneath the surface of the soil. It is stored under pressure in a container 1 from which it is fed through expansion orifices in the conduits 7, 11 to an aperture 19 contiguous to or contained in the share 23. Depth of feed is varied by a lever 36 and linkage 32. Feed valve 5 is also controlled by the lever 36. The cooling due to expansion of the ammonia produces a protective sheathing of ice on the share and ejection nozzles.
Patent GB-554706-A (GB)
Title: Conductive footwear
IPC: A43B7/36
Filed: 1942-03-18
Abstract: 554,706. Boots &c. O'DONNELL SHOE CO. March 18, 1942, No. 3611. Convention date, March 22,1941. [Class 17 (ii)] A shoe designed to disperse static electrical-charges that may gather in the wearer comprises an insole 12 having openings in the forepart and the heel in which are wedged or cemented inserts 32, 52 of relatively soft, flexible, electrically conductive material and a connector 60 of similar material secured by rivets near the rear of the shank but free at its forward end which overlies the insert 32. The sole is made of similar electrically-conductive material, and a sock 66 of similar material may also be provided.
Patent GB-848189-A (GB)
Title: Improvements relating to timing apparatus for races, competitions or the like
IPC: G07C1/26
Filed: 1959-02-02
Abstract: 848,189. Pigeon clocks. HALLER, E., BENZING, K., HALLER, M., and GRAF, U., [trading as BENZING, F. E. [Firm of]]. Feb. 2, 1959 [Feb. 10, 1958], No. 3625/59. Class 106 (4). To prevent false adjustment of the clock by blows the unbalanced component of the rotating masses due mainly to the pointer 8 is neutralized by providing a flywheel mass 84 rotating oppositely to the minute wheel 5 and pointer 8. The diameter of the disc 84 can be kept small by giving it a high speed through a suitable gear ratio.
Patent GB-552241-A (GB)
Title: Improved method of and means for setting industrial and other diamonds and hard materials for shaping and finishing purposes
IPC: B24B9/16
Filed: 1942-03-19
Abstract: 552,241. Polishing diamonds. COVENTRY GAUGE & TOOL CO., Ltd., and WAINWRIGHT, J. E. March 19, 1942, No. 3646. [Class 60] [Also in Group XXII] An industrial or other diamond to be ground and polished is positioned in a mechanical dop 2 and firmly secured by a dop 17 of solder, lead, cement &c. The diamond 6 is first clamped against one or more flat or curved surfaces 3 of the dop 2 by a lever 4 and ring 7, and the dop 17 is then cast about the diamond on the dop while the latter is held by a jig 14 in a divided mould 16 carried by a table 15. In a modification, the diamond is pressed into V-jaws 8, Fig. 4, by an adjustable or flexible spring 10. After the composite dop has served its purpose, the part 17 may be melted or otherwise removed and the dop 2 used again.
Patent GB-303736-A (GB)
Title: Improvements in or relating to apparatus for the injection of water into the explosive mixture of internal combustion engines
IPC: F02M25/022
Filed: 1928-02-06
Abstract: 303,736. Soc. Anon. le Carbone. Jan. 7, 1928, [Convention date]. Charge, moistening; induction pipes, extra air valves for.-Water mixed with air is admitted to the mixture when the suction in the choke tubes is greater than that prevailing in the induction pipe, by a device comprising a cylinder i connected by a nozzle b to the induction pipe c and supplied with water through a conduit h, the cylinder containing a spring-loaded piston j operated by suction transmitted from the choke tube g by a conduit e. The piston j is provided with a conical end adapted to close an air inlet orifice o formed in the seat m which is provided with an axial outlet orifice controlled by a needle valve n, carried by the piston.
Patent GB-959028-A (GB)
Title: Epoxide resin compositions
Inventor: WINFIELD GRAHAM
IPC: C08G59/42
Filed: 1960-02-02
Abstract: Substituted ammonium phenates of formula: <FORM:0959028/C2/1> when R1 (when n=1) is H, halogen, nitro, hydroxy, alkyl, alkoxy, or <FORM:0959028/C2/2> and, when n is 2 or more, is an aliphatic residue; R2, R3, R4 and R5 are each H, halogen, nitro, alkoxy, hydroxy, alkyl, or the group: <FORM:0959028/C2/3> or any two of R2, R3, R4 and R5 constitute a benzene ring; R6, R7, R8 an alkyl, hydroxyalkyl, aryl or aralkyl; and R9 is H, alkyl, hydroxyalkyl, aryl or aralkyl, are prepared by heating the appropriate phenol with a tertiary amine or quaternary ammonium hydroxide.  Some detailed information is given of products from phenol, p-cresol, a -naphthol, p-nitrophenol, p-chlorophenol, resorcinol or bisphenol A, and tri-n-amylamine, benzyldiethylamine, benzyl-dimethylamine, tetramethylammonium hydroxide or 2-diethylaminoethanol.  Reference has been directed by the Comptroller to Specification 896,601.ALSO:A hardenable composition comprises (i) at least one epoxide compound, which or at least one of which contains more than 1 epoxide group per molecule, (ii) at least one polycarboxylic acid anhydride, and as accelerator, (iii) a substituted ammonium phenate of the formula: <FORM:0959028/C3/1> where R1, when n is 1, is H, halogen, nitro, hydroxy, alkyl, alkoxy or <FORM:0959028/C3/2> or, when n is 2 or a higher integer, is an aliphatic residue having n free valencies; R2, R3, R4 and R5 are each H, halogen, nitro, hydroxy, alkyl, alkoxy or the above ammonium group, or any two of R2, R3, R4 and R5 together represent a fuzed benzene ring; R6, R7 and R8 are each alkyl, hydroxy alkyl, aryl or aralkyl; R9 is H or alkyl, hydroxy alkyl, aryl or aralkyl. A wide variety of polyepoxides (i) are listed, bisphenol A/epichlorhydrin being used in the examples. Anhydrides, (ii) specified are phthalic, maleic, methyl cyclopentadiene/maleic, hexahydrophthalic, pyromellitic, dodecenyl succinic, dichloromaleic, and chlorendic. Ammonium phenates (iii) specified are derived from (a) N-benzyl dimethylamine, tri-n-amylamine, N-benzyldiethylamine, 2-diethylaminoethanol, or tetramethyl ammonium hydroxide, and (b) phenol, p-cresol, a -naphthol, p-nitro-phenol, p-chlorophenol, resorcinol, or bisphenol A. In comparative examples 2, 4, 6-tris (dimethylaminomethyl) phenol and its tri-(2-ethyl) hexoate are used in place of (iii). Specifications 821,972 and 839,239 are referred to.  Reference has been directed by the Comptroller to Specification 896,601.
Patent GB-862808-A (GB)
Title: Novel rare gas inclusion compounds
Inventor: MILLER SAMUEL AARON
IPC: C07C19/04
Filed: 1959-02-03
Abstract: The invention comprises inclusion compounds of the formula B.2R.17H2O, where B is methylene chloride, chloroform or carbon tetrachloride, and R is argon, krypton or xenon, and their preparation by bubbling the rare gas under pressure through an emulsion of the halomethane in water containing a small amount of an emulsifying agent, the emulsion being cooled to below the decomposition temperature of the compound at the pressure used but such that the emulsion remains sufficiently mobile to permit bubbling of the gas.  A table lists the temperatures at which the decomposition pressure of the compounds is one atmosphere. Specification 862,807 is referred to.
Patent GB-347334-A (GB)
Title: Improvements in teeth for card clothing of all kinds
IPC: D01G15/84
Filed: 1930-02-05
Abstract: 347,334. Wire card clothing. SEELEMANN, H. A., Neustadt-on-Orla, Germany. Feb. 5, 1930, No. 3883. Convention date, Feb. 5, 1929. [Class 120 (iii).] In card clothing used in fancy rollers, clearer rollers, doffing - rollers, velour rollers and the like, the two limbs a, b, Fig. 2, of the tooth or wire lie perpendicularly to the direction of the back member thereof and in different planes in relation to the direction of running. In the examples shown, the limb b may be bent backwards or forwards in relation to the limb a and may be curved or straight, or a similar effect may be produced as in Fig. 5 by twisting the limb b on the back member which is set in the card clothing by means of two piercing needles mounted in different planes.
Patent GB-1183491-A (GB)
Title: Improvements relating to the Packaging of Articles
Inventor: SQUIRE GORDON PETER JAMES
IPC: B65D5/50
Filed: 1967-01-27
Abstract: 1,183,491. Packaging; cartons. HENRY SQUIRES & SONS. 23 Jan., 1968 [27 Jan., 1967], No. 4063/67. Headings B8C and B8P. Packs, e.g. " blister packs " 11, comprising articles mounted on a flat base 10, are packaged by engaging the articles in apertures in a backing member which lies flush against the flat base of the pack and has upstanding flaps 14 adjacent the sides of the article to support it and tabs 15 to secure the base 10. Backing members 12 can be on opposite sides of an open-ended tube or carton, the apertures being formed, by depressing flaps 14, formed by cuts in the opposite sides so that the packs 11 can be mounted in staggered relationship. The flaps 14 act as supporting members increasing the vertical rigidity of the box. The base members 10 of the packs may be further located by tongues 17 which overlie their ends.
Patent GB-1529052-A (GB)
Title: Circuit arrangement for obtaining a sawtooth current in a coil
IPC: H03K4/83
Filed: 1977-02-01
Abstract: 1529052 Sawtooth current generator INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 1 Feb 1977 [14 May 1976 (2)] 04083/77 Heading H3T A circuit arrangement to produce a periodic sawtooth current in a deflection coil 10 gives a controllable switching device 16 a long recovery time relative to the sawtooth period. In operation the first part of the stroke current passes through diode 13, while diode 15 and the SCR16 are off and capacitor 34 charged. At some time in this first part, a sync pulse is applied to fire the SCR16. The capacitor 34 resonantly discharges through the coil 33 and the SCR. When the current in diode 13 has fallen to zero, the stroke current is supplied via the choke 12 and via the diode 15, and initially via SCR16 also. After a half cycle, the current in capacitor 34 and coil 34 reverses, turning off the SCR, and is taken through the two diodes 15, 13 while the stroke current continues. The second half-cycle in the series circuit 33, 34 finishes and the reversal of current cuts off diode 13. The SCR has the whole of this second half-cycle to recover to the fully cut-off condition. There is now no low impedance conductive path in parallel with coil 20 and fly back commences resonantly with capacitor 14. Some current continues to flow in diode 15 until the voltage on capacitor 14 has become such as to cut off this diode sometime before the end of flyback. Flyback finishes and the cycle then repeats. Capacitor 35 is the usual S-correction capacitor. In a second embodiment (Fig. 4 not shown) a series RC (46, 47) suppresses parasitic oscillations in the SCR circuit and an additional series tuned circuit (41, 42) resonant at the sawtooth frequency forms a coupling between the SCR and the coil.
Patent GB-573716-A (GB)
Title: Improvements relating to hydraulic jacks
IPC: B66F3/24
Filed: 1944-03-07
Abstract: 573,716. Indicating liquid levels. TANGYES, Ltd., and WALKER, L. March 7, 1944, No. 4237. [Class 123 (i)] [Also in Group XXX] In a jack of the kind having in combination with the cylinder of the main ram, a pump and a reservoir c for containing the working fluid, the reservoir being fitted with a cover b, the cover is secured by a hollow fixing screw a having combined with it a spring-loaded closure member f which may serve as a dipstick. The shoulder e between the parts of the bore d of the screw acts as a.seating for the conical part g of the member f. A finger-piece k is provided at the head of the stem for raising it against the resistance of the spring j to allow the'escape of air.
Patent GB-695311-A (GB)
Title: Improvements in split dies for moulding
Inventor: GAVED CLEMENT
IPC: B22C9/06
Filed: 1951-02-21
Abstract: 695,311. Split dies. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Feb. 15, 1952 [Feb. 21, 1951], No. 4246/51. Class 87 (ii) A die having a cavity for moulding an article having an accurately shaped fine edge along its length, e.g. a turbine-blade or a similarly shaped air-compressor blade, is split into separable parts along one surface, which extends longitudinally of the cavity and also across its width nearly up to said edge, and along a second surface which meets the first surface transversely at a short distance back from said edge, so that the surfaces do not pass through said edge, thus avoiding any flash occurring along that edge. As shown, a die for moulding a wax pattern of a turbine blade or of a similarly shaped air-compressor blade is split into separable parts 1, 2 and 4 (Fig. 3) along surfaces a, b, c, d and e, which do not pass through the said fine edge (the leading edge of the blade in the example illustrated). The separate parts are positioned by dowels 3 and 8, the block 4 being clamped by a removable bridge 5 and clamping screw 7. The leading edge is formed in the engraved recess f (Fig. 4) in the block 4. The inlet 10 in the half die 2 is for the injection of the wax.
Patent GB-465220-A (GB)
Title: Improvements in or relating to folding machines for shirts or like articles of wearing apparel
IPC: D06F89/02
Filed: 1936-02-12
Abstract: 465,220. Folding shirts after ironing. COMBARETTE, G. B. Feb. 12, 1936, No. 4261. [Class 138 (ii)] The shirt is placed, front downward and tail to the left, on a table b having a recess in which are mounted a stationary shoulder a, Fig. 1, and two pivoted shoulders d, e all approximately at the same level. Initially the shoulders are held in the dotted line position adjacent the fixed shoulder and against the force of a spring t<1>. The collar band of the shirt is slipped over the shoulders and the catch holding the movable shoulders is released by depressing a push-button y whereby the shoulders d, e move outwardly and hold the collar band securely. A frame 5, Fig. 4, is now swung normally counterclockwise so as to overlie and contact with the back of the shirt and is held in this position by a pawl 47 engaging a ratchet 4. The arms of the shirt are manually folded and a cam shaft 17 is now clutched to a constantly running motor 108 whereby arms 21, 24 are rocked by cams 113, 114 in succession to fold longitudinal plates 20, 23, Fig. 7, over which the sides of the shirt extend, and to withdraw them whereby the sides of the shirt are left folded longitudinally on to the frame 5 over the back of the shirt. Further rotation of the cam shaft moves an arm 34, Fig. 4, relatively to a frame 32 through the cam 123 and link and lever system 31, 49, 491, 31<1>. The arm carries a rack 35, Fig. 5, at its free end engaging a pinion 36'on the shaft of a tail folding frame 37 pivoted on the frame 32 whereby the frame 37 rotates and folds the shirt tail back on itself. Continued movement of the cam shaft swings the frame 32 clockwise about its pivot so that the bottom part of the shirt, with the tail already folded in, is folded back over the folded sides on the frame 5. The movements of the side plates 20, 23 and of the frame 32 are arranged to exert a slight stretching action on the shirt to avoid wrinkling the front. The frames 32, 37 are now withdrawn and the detent 47 freed from the ratchet 4 so that the frame 5 carrying the folded shirt is swung clockwise by its restoring spring, arms, not shown, on the under side of the frame coming into operation to prevent the back of the shirt falling off the frame as it swings past the vertical position. A lever 126, Fig. 15, operating an ejector mechanism 61 is now coupled to the motor automatically through a clutch mechanism 128, 133 whereby the shirt is pushed off the frame 5 on to a table 81 or into a wrapper. As the cam-shaft 17 completes its rotation the cam 101 thereon shifts a rod p<1> to the right to swing the shoulders d inwardly where they are latched until again released by the operator. The frame 5 may be swung by the motor and the various frames may be adjustable in size. Instead of the operations being automatically performed in sequence by the motor they may be manually controlled.
Patent GB-834461-A (GB)
Title: Toy guns
Inventor: HANDLEY THOMAS JOHN
IPC: F41B7/00
Filed: 1957-02-07
Abstract: 834,461. Toy guns. BRITAINS Ltd. Feb. 3, 1958 [Feb. 7, 1957], No. 4293/57. Class 132(3) A toy or model gun comprises a barrel structure S having a bore 4 through which a projectile 8 is fired and also a bore or chamber 10 housing a spring-loaded striker rod 11 which has an offset arm 17 passing through a slot 15 in an extension 3 to a breech block 2. To cock the gun, the offset arm 17 is withdrawn against the action of a spring 12 and engaged behind a shoulder 18 on the extension 3, a projectile is then inserted into the barrel at 7 and the arm 17 released from the shoulder to fire the gun, the arm 17 being arrested clear of the breech block 2, as shown in dotted lines, by a head 14 on the rod 11 engaging the end of the chamber 10. The gun is mounted on a wheeled carriage C and the elevation of the barrel is adjustably secured by a detent 21 on the barrel structure engaging with a tooth 22 on a spring-loaded lever 23 which is pivoted to the carriage C at 25. As shown, the barrel structure, including the breech block, is formed in two halves which separate along a vertical plane to allow the insertion of the spring 12 and striker rod within the chamber 10, the halves being united by a muzzle collar 29 and by rivets or screw studs 31 at the breech end.
Patent GB-210992-A (GB)
Title: Improvements in machinery for washing grain, dried fruits, gravel, sand, minerals, and like granular substances, and rags, linen and like textile substances
IPC: B02B1/04
Filed: 1923-02-15
Abstract: 210,992. Caink, T. Feb. 15, 1923. Washing-apparatus with screens; stationary-vessel washing-apparatus. -In washing machines, the material and water are agitated together by compressed air, so that the water is caused to circulate and return repeatedly to the material which it washes and causes to pass to an outlet. A trough is divided into three parts A<1> .. A<3> by plates B<1>, B<2>, the material being fed by a hopper C into the part A<2> and water into the end K. Compressed air is led into a duct H beneath a perforated plate J or porous tile, driving the water up over the tops of the plates B<1>, B<2> and conveying away the dirt over weirs E to a pipe G. Part of the water returns beneath the plates and causes the material to gravitate to the outlet K. For washing heavy material another and adjustable grid L, placed over the bottom edges of the plates B', B<2>, is provided, having suitably inclined perforations for accelerating the movement of the material towards the outlet.
Patent GB-768057-A (GB)
Title: A device for adapting a tubular blank to fit a supporting member
IPC: B29C53/20
Filed: 1955-02-15
Abstract: 768,057. Making flexible containers. UNITUBO SOC. ANON. Feb. 15, 1955 [Feb. 27, 1954], No. 4522/55. Class 87(2). [Also in Group XVI] A device for reshaping the cross-section of a deformed pliable tubular blank 2 to enable it to be fitted over a supporting mandrel 1 comprises a ring 3 the opening of which has tapering walls 4 which are adapted, as the blank is pressed into the opening, to force the blank into the proper shape to fit the mandrel. The blank, which may be of thermoplastic, may have been deformed out of its normal shape in storage so that instead of being, for instance, circular it has become oval as shown at 7. On being pressed through the ring 3 it is returned to circular shape and easily slides onto the mandrel positioned beneath the ring. The diameter of the larger end of the opening is greater than half the peripheral length of the blank. The blank, when mounted on the mandrel may be subjected to a printing operation or a moulding operation.
Patent GB-1042858-A (GB)
Title: Process for the production of polyisocyanate compositions
IPC: C08G18/72
Filed: 1965-02-02
Abstract: Tolylene diiscyanate, prepared by phosgenating tolylenediamine in a solvent, is modified by reacting with either (1) 0.5-4 weight per cent of a polyol having 3-8 OH groups or (2) less than 7 weight per cent of a difunctional active-H containing substance (e.g. a diol), the mixture being then distilled to remove volatile matter until the distilland has a viscosity of at least 20 c.p.s. at 25 DEG  C. and an amine equivalent of 90-130.ALSO:Cellular polyurethanes are prepared from tolylene diisocyanate (made by phosgenating tolylenediamine) which has been modified by reacting with either (1) 0.5-4 weight per cent of a polyol having 3-8 OH groups, or (2) less than 7 weight per cent of a difractional active -H containing substance (e.g. a diol), the mixture being then distilled to remove volatile matter until the distilland has a viscosity of at least 20 c.p.s. at 25 DEG  C. and an amine equivalent of 90-130.  In an example, such a modified diisocyanate is reacted at 20 degrees with a premix of a polyether triol, tetra-hydroxy-propyl) ethylene diamine, dibutyl Sn dilaurate and CFCl3.
Patent GB-1416237-A (GB)
Title: Electronic controller with remote adjustment
IPC: G05B11/42
Filed: 1973-01-30
Abstract: 1416237 Gain control; pulse modulation circuits FOXBORO CO 30 Jan 1973 [14 March 1972] 4614/73 Headings H3T and H4L [Also in Divisions G3 and G4] Fig. 1 shows a pulse generator for switching an FET 14 in an integrator; the pulses are of constant width, spaced by an amount depending upon an analogue control voltage applied at 17. This voltage is amplified at 18 and integrated at 19; 25 provides bias. The output of 19 steadily becomes more negative until it exceeds a value from divider 20, which causes a comparator amplifier 21 to saturate positively, resetting the integrator by transistor switch 22 and providing an output pulse at 15. This lasts while a feedback capacitor 23 discharges through divider 20 sufficiently for the comparator to again change state, thus producing an output gap while integrator 19 is operating. Thus the pulse width depends upon the components 20, 23 while the gap depends upon the integration time and hence voltage 17. Fig. 3 shows an amplifier in box 25 whose gain may be adjusted by altering the on/off ratio of periodically operated transistor switches 27, 28 connected as shown in the feedback and input circuits of an operational amplifier 26, 29 is the amplifier input and 30 its output. The transistors are switched in complementary fashion by pulses on line 31 which have the constant frequency of a sawtooth generator 34 but whose mark space ratio depends upon a control voltage applied to 32 and compared with the sawtooth in comparator amplifier 35. Both of the devices are used in an automatic process control system (see Division G3).
Patent GB-721766-A (GB)
Title: Improvements in or relating to automatic protection circuit arrangements for thermionic valves
Inventor: BOWERS DOUGLAS FREDERIC
IPC: H03F1/54
Filed: 1952-02-21
Abstract: 721,766. Valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 10, 1952 [Feb. 21, 1952], No. 4639/52. Class 40 (6). An automatic protection circuit for a large high powered transmitter valve comprises a rectifier tube connected across the valve, a first resistance connected in series with the cathode of the valve and which on the occurrence of a flashover in the valve supplies a bias to the rectifier such to render it conducting and a condenser connected in series with a resistor across the rectifier, the resistor being connected to a device which rapidly cuts-off the H.T. supply when the voltage across the latter resistor rises. In the circuit shown, excessive current in the transmitting valve V2 causes the voltage across cathode resistor R5 to be sufficient to fire the discharge tube VI. A capacitor C1 which may be the smoothing capacitor of the H.T. supply unit discharges through the discharge tube producing sufficient voltage across a resistor R1 to cause a device associated with the supply rectifier to rapidly interrupt the H.T. supply. A small inductance L2 is preferably connected in series with the H.T. supply to the valve. The circuit will restore itself to normal when the condenser discharge ceases.