baber/WOPTO huggingface dataset:
Patent GB-185567-A (GB)
Title: Improvements in or relating to posts or pillars, or poles for supporting lawn tennis nets
IPC: A63B61/02
Filed: 1921-07-07
Abstract: 185,567. Sykes, Ltd., W., and Mathews, J. H. July 7, 1921. Lawn-tennis net supports.-A hollow metal can f, Fig. 4, is shaped to suit the contour of a lawntennis post a, and is provided at its lower end with an internal flange f<2> leaving a central hole f' to receive the shaped top of the post, to which the cap is secured by screws passing through holes 5. The cord i that supports the net passes through a hole. h in the closed top f<1> of the cap and is wound on a drum o, on to which it is guided by a pulley v. The drum o is actuated by an external crank handle u through a worm gear r, q. An inspection opening f<4> in the side of the cap is closed by a movable cover j. Posts that are not fitted with winding gear may be provided with a cap y, Fig. 8, having a groove z to receive the cord. The caps may be used in combination with posts a, Figs. 13 and 16, the pointed lower ends a<1> of which are provided with metal sheaths b.
Patent GB-767042-A (GB)
Title: Improvements in or relating to a process for preparing oil-soluble basic calcium sulphonates
IPC: C10M159/24
Filed: 1954-06-23
Abstract: A basic calcium petroleum or alkyl aromatic sulphonate in hydrocarbon oil solution is prepared by mixing a solution of an alkali metal hydroxide with a wholly hydrocarbon oil solution containing a calcium petroleum or alkyl aromatic sulphonate and calcium chloride and removing the alkali metal chloride formed as a precipitate from the mixture, if necessary after removal of water, the amount of alkali metal hydroxide not exceeding the proportion of 2 mols. per mol. of the calcium chloride. Preferably, the alkali metal hydroxide solution is aqueous and the reaction mixture is dehydrated during the process. The calcium chloride in the oil solution employed may be added calcium chloride or that present as a contaminant in the calcium sulphonate as when for example a phenol raffinate of white oil or a C18+ alkyl aromatic hydrocarbon is sulphonated, the acid oil neutralized and the resulting sodium sulphonates in unchanged oil solution are converted into the calcium salts by reaction with excess of calcium chloride brine.  Preferably about 0.5 mol. of calcium chloride is present initially per mol. of calcium sulphonate.  The alkali reacts with the calcium chloride forming calcium hydroxide which is highly soluble in the hydrocarbon. Thereafter, the reaction mixture may be further diluted with oil, heated to remove water and then filtered hot with a filter aid to remove the alkali metal chloride.  Experiments are described wherein hydrocarbon oil solutions containing calcium petroleum sulphonate and calcium chloride are treated with the stoichiometric amount of aqueous caustic soda or excess calcium hydroxide, dehydrated and filtered and it is shown that both products have similar high basicities.ALSO:A hydrocarbon oil solution of a basic calcium petroleum or alkyl-aryl sulphonate is prepared by mixing a solution, preferably an aqueous solution, of an alkali metal hydroxide with a wholly hydrocarbon oil solution containing a calcium petroleum or alkyl-aryl sulphonate and calcium chloride and removing the alkali metal chloride formed as a precipitate, if necessary after removal of water, the amount of alkali metal hydroxide not exceeding the proportion of 2 moles per mole of calcium chloride present (see Group IV(b)).  The calcium chloride may be added calcium chloride or that present as a contaminant in the calcium sulphonate as results, for example, when a phenol raffinate of a white oil or a C18 + alkyl-aromatic hydrocarbon is sulphonated, the acid oil is neutralized and the resulting sodium sulphonates in unchanged oil solutions are converted into the calcium salts by means of excess of calcium chloride brine. Preferably, about 0.5 mole of calcium chloride is present per mole of calcium sulphonate.  The calcium chloride is converted to the hydroxide which combines with the calcium sulphonate.  The product is suitable as a motor oil detergent.  Examples are given.
Patent GB-186187-A (GB)
Title: A new or improved machine for filling or similarly treating metal and other objects
IPC: B23D67/00
Filed: 1921-07-07
Abstract: 186,187. Liebermann, S. July 7, 1921. No Patent granted (Sealing fee not paid). Block apparatus; work-holders. - A machine for filing or similarly treating metal and other objects, particularly the brass plates of button-hole punching-machines, comprises a base a formed with a block b, the upper part of which constitutes a jaw b<1> of a work-holding vice, the movable jaw b<2> being adjustable by means of a screw and nut c'. Vertical spindles d<1>, d<2> on the base a carry sleeves f resting on springs g. These sleeves are connected by guide-rods h<1>, h<2>, on which are reciprocated a carriage i and tool-holder by means of a handlever n pivoted to the base a and having pin-and-slot connections m, n<1> with the carriage. A file l is affixed to the holder j, but may be replaced by emery or other abrasive material when the machine is used for polishing. The tool is depressed on to the work, against the action of the springs g, by a lever r pinned to a spindle o, on which are pinned arms p<1>, p<2> connected by links q<1>, q<2> to the sleeves f.
Patent GB-158588-A (GB)
Title: Improvements in and relating to the construction of concrete pipes
IPC: B28B21/56
Filed: 1919-07-24
Abstract: 158,588. Fitzpatrick, Sir J. P., and Bradley, B. July 24, 1919. Reinforced - concrete pipes. - In a method of forming reinforced concrete pipes with projecting portions thereon for connection to branches, the circumferential reinforcements in the neigh. bourhood of the projecting portion are associated with annular reinforcements 3, and are carried outwardly to act as longitudinal reinforcements 5 of the projecting portion. The ends 1<a> of certain of the longitudinal reinforcements of the pipe may also be carried outwardly, and their ends as well as the ends of the portions 5 are attached to a terminal ring 7. The projecting portion is provided with circumferential reinforcements 6. A mould for the construction of the pipe is shown in Fig. 4. A cover-plate 10 with a groove 11 is provided to form the projecting portion. The mould is provided with holes and cover-plates therefor of the size of the largest projecting portion required, the grooves 11 being made of the thickness necessary to form the sizerequired. A block 12 is secured to the cover-plate forming a core for the hole required and is preferably balanced by a counterweight 14.
Patent GB-233938-A (GB)
Title: Improvements in or relating to axle and like lubricating means
IPC: B61F17/08
Filed: 1924-08-02
Abstract: 233,938. Still & Sons, Ltd., W. M., and Still, F. G. Aug. 2, 1924. Capillary action lubricators. - An absorbent pad 5 held .against the underside of an axle journal 2 by an arcuate sheet-metal member 1 supported by a spring 6 is formed with marginal wings 4 which are passed through slots in the member 1, the slots being narrower than the thickness of the pad, so that the pad is held firmly on the member 1. The wings 4 depend into the oil in the axle-box and engage the side walls of the box. The spring 6, which is attached to the member 1 by clips, surrounds an elongated slot in the member 1, through which cotton threads 9, sewn to the pad, extend into the oil..
Patent GB-184028-A (GB)
Title: Improvements in or relating to apparatus for peeling potatoes and the like
IPC: A47J17/02
Filed: 1921-07-08
Abstract: 184,028. Gregory, G. W. July 8, 1921. Peeling vegetables; removing eyes.-A longitudinal slot c is formed by punching down the metal d and the portion e is bent backwards to grip the blade f, preferably a safety-razor blade, between the portions e, b. The blade f projects slightly through the slot c. The end is scooped at b<1> for removing eyes, and the portion g is shaped to be attached to a wooden handle a. The portion g may be formed as a socket into which fits the handle a.
Patent GB-615886-A (GB)
Title: Improvements in oscillator synchronising circuit arrangements
IPC: H03L7/08
Filed: 1943-11-08
Abstract: 615,886. Automatic control systems. PHILIPS LAMPS, Ltd. Nov. 8, 1943, No. 18548. Convention date, July 11, 1942. [Class 38 (iv)] Oscillation frequency.-An adjustable wave is synchronized with a wave of standard frequency by subjecting one of the waves to a phase shift so as to produce a shrinkage of the phase difference, and controlling the frequency of the adjustable wave by a control voltage related to the reduced phase difference. As shown in Fig. 3, the adjustable wave Wa produced by a generator G is fed to a phase-shifter R which may be of the kind described in Specification 4966/43, as open to inspection under Sect. 91. The phase-shifted wave is fed to a mixer M where it is inter-modulated with the standard wave from a source Wm. The part of the output, that is not of the wave frequency or higher, is fed to the phase-shifter in the sense to reduce the phase difference between Wa and Wm, and as the result of an action analogous to negative feed-back, the original phase difference which may have amounted to some thousands of radians is reduced to a fraction of a radian. The output from M, which may be amplified at P, passes via a low-pass filter F to adjust the frequency of the generator G by any known means. Fig. 4 is a circuit diagram of a modified arrangement, in which the wave Wm from the standard source is fed to the phase-shifter R, and its output taken to the outer control grid Gs of the mixer M. The inner grid G is fed from the adjustable source Wa, and the mixer output is robbed of its highfrequency components by a condenser C1 and is passed back to the phase-shifter R as a control voltage. The output from the mixer is also taken through a low-pass filter F to provide a frequency-control voltage Vf for the source Wa. The presence of amplitude modulation or frequency modulation on either the standard or the adjustable wave does not interfere with the synchronization.
Patent GB-939274-A (GB)
Title: Improvements in semiconductor logical element
IPC: H03K19/10
Filed: 1961-05-23
Abstract: 939,274. Tunnel-diode bi-stable circuits. GENERAL ELECTRIC CO. May 23, 1961 [June 1, 1960], No. 18556/61. Class 40 (6). A circuit capable of assuming either of two states, on the application of an energizing voltage thereto, in dependence upon the polarity of a polarizing voltage applied between input terminals, comprises a bridge circuit consisting of two series-connected tunnel diodes 1, 2 connected in parallel with two series-connected resistors 3, 4 (which may be constituted by a single centre-tapped resistor) and connected in series with resistors 5, 6 across a pulsed voltage supply source V and having common input and output terminals 11, 12 connected respectively to the junctions between the tunnel diodes and the resistors 3, 4. The values of the resistors and the power supply are so chosen in relation to the characteristics of the diodes 1, 2 that when diode 1 is in its high-voltage state, diode 2 is in its low-voltage state and vice versa. The state assumed by the circuit on the application of a voltage pulse from V is determined by the polarity of the input voltage then existing between terminals 11 and 12, thus resulting in an amplified output voltage of like polarity between the same pair of terminals. The circuit is used as a logical element in a digital computer system and in order to ensure that the information processed by the system flows through the system in one direction only, despite the bidirectional nature of the individual elements, successive elements are preferably energized from successive phases of a three-phase pulse supply system. Alternatively isolating elements such as diodes, transistors or thermionic valves may be interposed between successive stages. Again, in a modified circuit, Fig. 8 (not shown), a capacitor is shunted across the bridge circuit so that there is a delay between the application of each energizing pulse and the assumption by the tunnel diodes of the states determined by the input voltage, all the elements of the system then being energized from a single-phase supply and the timings in successive stages being arranged to differ. Fig. 4 shows the logical element used in a majority-logic system, the element 16 having an odd plurality of inputs thereto and producing an output corresponding to whichever sign of input from preceding stages 17, 18, 19 is in the majority. To produce an AND-gate in such a system one stage, e.g. 17, may be replaced by a device giving a constant output corresponding to binary zero, Fig. 5 (not shown); similarly to produce an OR-gate element 17 may be replaced by a device giving a constant output corresponding to binary one, Fig. 6 (not shown).
Patent GB-457021-A (GB)
Title: Improvements in and relating to circuit arrangements for varying the phase position of the grid potential of controlled electric discharge devices
IPC: H02M1/04
Filed: 1936-07-03
Abstract: 457,021. Converting. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. July 3, 1936, No. 18572. Convention date, July 4, 1935. [Class 38 (ii)] A phase-shifting circuit by means of which the voltage Us, Fig. 1, may be shifted through substantially 180‹ and its magnitude remain unchanged comprises in series with an inductance 40 a parallel connected condenser 63 and a variable resistance 62, the impedance of the condenser being twice that of the inductance. Phase shift is obtained by varying the resistance. In a modification, the inductance and condenser are interchanged. The inductance may be a saturated transformer. Fig. 5 shows a circuit arrangement comprising saturated transformers I-VI for producing grid potentials built up from a number of unsymmetrical peaks. The primary windings are connected in star through resistances 62 across which condensers 63 are connected in delta. Variation of the phase of the grid potentials is effected by adjustment of the resistances 62. To obtain automatic regulation of the output voltage of a rectifier the resistance may be thermo-negative and have a heating winding supplied with current proportional to the rectified potential. In a modification of this, four thermo-negative resistances may be connected in a bridge with the voltage to be regulated or a voltage proportional to it connected across one of the diagonals. In a modification of this, thermopositive resistances are connected in bridge form with the difference between a standard and the variable voltage applied to a diagonal. In a further modification, a Grõtz connection of rectifiers is connected in circuit with the variable voltage to be regulated connected across a diagonal.
Patent GB-220437-A (GB)
Title: Improvements in heat-insulated apparatus for use in serving food
IPC: A47B31/02
Filed: 1923-07-19
Abstract: 220,437. Benham & Sons, Ltd., (Jen. kins, C. E ). July 19, 1923. Cold and heat retaining chambers.-A portable apparatus particularly adapted for storing food and transporting it between the kitchen and the serving room of a hospital &c comprises a casing 5, preferably of sheet metal, removably mounted in an open frame of angle bars 3, 4, connected by sheet-metal plates constituting the walls of a cupboard below the casing, the casing being fitted. with a number of double-walled pockets for the reception of food containers 14. The walls 6, 7 of the pockets are soldered or otherwise secured to the top 8 of the casing 5, the sealed space between the walls being left as an air space or filled with material such as ground cork. The pockets are insulated from one another by ground cork or other material. The food containers have covers 15, which are held in position by the dished inner face 18 of a heat-insulated cover comprising intermediate. plates 19, 20 sealed to the wall of the cover, the spaces between the outer set of plates being filled with heat-insulating material. Preferably, the cover is in two hinged parts 16, 17 having handles 22, toggle fastenings 24, and slotted stays 25. The space in the frame below the casing is fitted as a cupboard for the reception of plates, dishes &c. having an open front, a lift-up door 28, or a drop door. The frame is fitted with a swivelling wheel 32 at each end and middle, wheels 31.
Patent GB-381180-A (GB)
Title: Improvements in and relating to piston rings
IPC: F16J9/20
Filed: 1931-06-29
Abstract: 381,180. Piston rings. WUERFEL, W., 2000, South 71st Street, Philadelphia, U.S.A. June 29, 1931, No. 18765. [Class 122 (i).] An oil scraper ring as described in Specification 381,179, wherein the upper ring 12 is chamfered as at 23 and the lower ring 13 is either grooved as at 18, Fig. 1, or chamfered as at 24, Fig. 5. The grooves 25 may be formed in each ring or wholly in one ring and are shaped so that their sides converge towards the cylinder. A spring 28 shaped as shown in Fig. 3 is fitted behind the ring. Sufficient clearance is allowed between the ring and the sides of the groove to allow a thin film of oil to be maintained therein.
Patent GB-498405-A (GB)
Title: Process for the manufacture of 2.2-dimethyl-4.4-dihydroxy-p-phenanthrolin
Filed: 1937-07-07
Abstract: 2 : 21 - Dimethyl - 4 : 41 - dihydroxy - p - phenan throlin is manufactured by heating a p-phenylene-bis-b -aminocrotonic acid alkyl ester in the presence of a diluent.  The product is useful as an initial material for chemical syntheses.  In an example, 1 : 4-phenylene-bis-b -aminocrotonic acid ethyl ester is introduced into paraffin oil heated to 270 DEG  C.
Patent GB-881265-A (GB)
Title: Quaternary ammonium compounds and their preparation
Inventor: COPP FREDERICK CHARLES
IPC: C07D295/073
Filed: 1958-06-13
Abstract: The invention comprises quaternary ammonium compounds containing a cation of the formula <FORM:0881265/IV (b)/1> wherein X is a halogen atom or a methyl or a nitro group, R1 is an ethyl, 2-hydroxyethyl, isopropyl or allyl group when NR2R3 is a dimethyl or pyrrolidino group, or R1 is a methyl group when R2 and R3 are the same or different and are ethyl or 2-hydroxyethyl groups, and the preparation thereof by quaternisation of a tertiary amine having all but one of the groups desired in the quaternary ammonium compound attached directly to the nitrogen atom, with a reactive derivative RZ, wherein R is the group it is desired to introduce and Z is a reactive atom or group.  Compounds wherein NR2R3 is a pyrrolidino group are also prepared by intra molecular condensation of a tertiary amine of the general formula <FORM:0881265/IV (b)/2> or reacting an appropriate secondary butylamine with a 1,4-disubstituted butane, Z-(CH2)4-Z.  1 - Hydroxy - 2-o-methylbenzylaminoethane is prepared from o-methylbenzylamine and ethylene oxide.  N - o - Chlorobenzyl - N - isopropylamine is prepared from o-chlorobenzyl chloride and isopropylamine.  Similarly are prepared, N-o-bromobenzyl - N,N - dimethylamine, - N - isopropylamine, - pyrrolidine, - N - ethylamine, N - o - chloro-benzylpyrrolidine N - o - methylpyrrolidine and N-o-fluorobenzyl-N,N-dimethylamine.  o-Bromobenzyl alcohol esterified with p-toulene-sulphonyl chloride gives o-bromobenzyl p-toluene-sulphonate.  o-Bromobenzyl bromide is reacted with ethyl 4-hydroxybutylamine to yield N-o-bromobenzyl-N-ethyl-N-4-hydroxybutylamine in turn reacted with hydriodic acid to give N-o-bromobenzyl-N-ethyl-N-4-iodo butylamine hydriodide. Specification 765,850 is referred to.ALSO:Pharmaceutical preparations comprise quaternary ammonium compounds containing a cation of the general formula <FORM:0881265/VI/1> wherein X is a halogen atom or a methyl group or a nitro group, R1 is an ethyl, 2-hydroxyethyl, isopropyl or allyl group when NR2R3 is a dimethylamino or pyrrolidino group or R1 is a methyl group when R2 and R3 are the same or different and are ethyl or 2-hydroxyethyl groups together with a suitable carrier therefore.  The compositions may be in the form of tablets, powders, granules, capsules, cachets, suspensions or solutions for oral administration, solutions and suspensions for parenteral administration or suppositories and pessaries. Specification 765,850 is referred to.
Patent GB-1350466-A (GB)
Title: Linear electric motor
IPC: B60L13/03
Filed: 1971-06-04
Abstract: 1350466 Electric railways TOKYO SHIBAURA ELECTRIC CO Ltd 4 June 1971 [11  June 1970] 18968/71 Heading B7L [Also in Division H2] A reaction rail for a linear synchronous motor comprises a tube 1, Fig. 3, of magnetic material having at least one longitudinally-extending zig-zag slit 2 forming interdigitated sets of poles 3a, 3b which are oppositely excited to form trains of north and south poles by a conductor 4 extending through the tube and connected to a D.C. supply. A polyphase wound armature carried by a vehicle co-operates with the poles through an arcuate air gap. A suitable circuit for energizing the armature is disclosed, Fig. 10 (not shown), and other suitable circuits are described in co-pending application No. 18969/71. The tube 1 may be of rectangular cross-section in which case the air gap is planar, and to avoid the need for a return conductor in the excitation circuit, two rails may be located side-by-side and the conductors thereof connected in series to the D.C. supply, Fig. 4 (not shown). To reduce the power consumption of the excitation circuit, the rail may be divided into sections, as shown in Fig. 5, each with its own conductor 4 and D.C, supply 6, only the section adjacent the vehicle 7 being energized as the vehicle progresses. The slit 2 in the rail may be fitted with non-magnetic material and the conductor 4 may consist of sodium or a super-conductive material. In another arrangement designed to reduce power consumption, the armature is located inside the tube 1 along with the conductor 4 and the tube is evacuated. Fig. 7 shows a further embodiment in which the vehicle 7 straddles the rail and has a pair of armatures 10 co-operating with sets of poles 3, 3<SP>1</SP> formed by two diametrically opposite slits 2 in the tube 1. A compressor 12 delivers air to the gap 14 to maintain the vehicle out of contact with the rail.
Patent GB-323712-A (GB)
Title: Improvements in or relating to shears
IPC: A01G3/02
Filed: 1929-06-21
Abstract: 323,712. Greer, J. F. June 21, 1929. Shears. - In shears of the draw-cut type a cutting blade 9 has a curved slot 10, with the curve directed towards the side away from the cutting edge as in Fig. 1, engaging a pivot 8 mounted in an auxiliary blade 6. A link 12 pivoted to each blade shaft at 13, 15 gives the blade a longitudinal motion thus ensuring a slicing as well as shearing action. A helical spring 17 tends to keep the shears in the open position and they may be locked in the closed position by means of a stop 18 engaging an enlarged head 11 on the pivot.