baber/WOPTO huggingface dataset:
Patent GB-362457-A (GB)
Title: Process for the hydrogenation of mesityl oxide
IPC: C07C45/62
Filed: 1930-09-04
Abstract: Mesityl oxide is hydrogenated in the presence of a nickel catalyst under pressures substantially greater than atmospheric, and at temperatures of 140 DEG  C. or less to produce 2-methyl pentanon or iso-butyl ketone, or between 170-210 DEG  C. to produce the corresponding alcohol.  According to examples, the ketone is obtained at pressures of 8-10 atmospheres, while to produce the alcohol the pressure is increased to 20-30 atmospheres.
Patent GB-247263-A (GB)
Title: Improvements relating to machines for spinning rope yarns, binder twine and the like
IPC: D01H1/04
Filed: 1924-11-07
Abstract: 247,263. Barbour, T. Nov. 7, 1924. Spinning-machines; spindle apparatus; winding-on motions.-In machines for spinning rope yarns, binder twine, and the like the bobbin B is positively driven and its speed relative to that of the flyer A is governed by a cone and differential motion, the usual haul pulleys being dispensed with. The flyer is driven by gears a<2>, a<3>, and the bobbin is carried by a tube b<1>, which is splined in a collar b<8> on a gear wheel b' and is reciprocated by a rack b<5> and pinion b<6>. The gear wheel b<7> is driven by a pinion b<10> connected to a cone and differential motion. The flyer is supported by ball bearings a<1>, a<6>.
Patent GB-748810-A (GB)
Title: Improvements in or relating to electrical signal gating circuits
IPC: H03K17/52
Filed: 1953-09-28
Abstract: 748,810. Discharge-tube gating circuits. GENERAL ELECTRIC CO., Ltd.; and BEESLEY, J. H. Sept. 17, 1954 [Sept. 28, 1953], No. 26595/53. Class 40 (6). The Figure shows a gating circuit in which one or more signals applied to the inputs 21-23 appear at the output 25 only when cold-cathode gas discharge tube 4 is non-conducting. When tube 4 is fired by a pulse applied at trigger 24 the drop in potential of lead 7 is such that even when positive voltages are applied simultaneously to all of the inputs 21-23 so that all of the rectifiers 15-17 are non-conductive, trigger tube 10 is not fired and no output signal is produced at 25. Capacitor 27 prevents the feedback of spurious signals over the self-capacitances of rectifiers 15-17. When tube 4 is extinguished, for example by removing the anode potential momentarily, the potential of lead 7 is such that when rectifiers 15-17 are rendered non-conductive by positive pulses at all of the inputs 21-23 the further rise in potential of lead 7 causes tube 10 to fire and an output signal at 25 to be produced. In a modification resistor 2 is replaced by an element having a non-linear resistance-voltage characteristic. Preferably the element is made of a material such as silicon carbide of which the resistance increases as the value of applied voltage falls. The resistor 1 and tube 4 may be made common to a number of gating circuits.
Patent GB-1509603-A (GB)
Title: Device for automatically evaluating the efficiency of a football player or other projectile performer
IPC: A63B63/06
Filed: 1975-06-24
Abstract: 1509603 Target practising device M J M A BON 24 June 1975 [27 June 1974] 26658/75 Heading A6D A device for testing the "efficiency"' of a ball player in hitting a preselected target comprises a surface on which targets selectively appear, apparatus for determining a "parameter" related to the "speed" of a ball projected towards said surface at the moment of impact, apparatus for determining the "distance" from the target on the surface to the actual point of contact and computing apparatus for calculating the efficiency as a function of "speed parameter"/"distance". In the embodiment described the parameter related to speed of the ball is determined at its impact with screen 23, movably mounted in frame 22, from the kinetic force of impact as measured by the four extensometric dynamometers 28 mounting the screen 23 on frame 22 in each corner of said screen. The distance from the target to the point of impact is determined by employing the relative magnitudes of the impact force felt by the various dynamometers and the known position of the target. The device shown in Figure 8 comprises a football "goal" supported by members 20, 22 and a number of bulbs 43 which may be selectively lit. On impact of the ball with surface 23 information is relayed to computer 17 which produces a visual display and printout of the parameters, speed (V), distance (D) and efficiency (E). The parameter related to the speed of the ball may be determined while in flight towards the target by timing the travel between two points using radio, supersonic or light detectors. The extensometric dyanomometers may be replaced by electrical or magnetic sensors e.g. piezo-electric, variable inductance &c.
Patent GB-1465295-A (GB)
Title: Means for melting pig iron and/or scrap metal
Inventor: COLLIN P H
IPC: C21B11/08
Filed: 1974-06-17
Abstract: 1465295 Metal melting furnace ASEA AB 17 June 1974 [18 June 1973] 26711/74 Heading F4B [Also in Division B1] A furnace for melting pig iron and/or scrap metal comprises a furnace chamber and a charging shaft leading to it, the furnace being inductively heated and provided with burners arranged so that the incoming material in the shaft is preheated by combustion gases. A circular or elongated furnace chamber has induction coils 12 arranged below the bottom, mechanically supported by yokes 14 which also prevent flux leakage. The charge to be melted is fed through one or more shafts 19 extending upwardly from the furnace roof, the bottom of the shaft being spaced above the melt level to allow gases from burners 21, 22 to flow up the shaft and preheat the material. The position of the coils 12, and shaft 19 are such that the material is fed between two peaks formed in the melt by the inductive heating. Carburizing material may be fed outside these peaks at 33. The burners have reducing flames, tuyeres 29, 30 in the wall of the shaft 19 supplying secondary air.
Patent GB-187824-A (GB)
Title: Improvements in railway car couplers
IPC: B61G3/04
Filed: 1921-10-10
Abstract: 187,824. Haddan, R., (McConway & Torley Co.). Oct. 10, 1921. Couplings, automatic.-In a Janney coupling the knuckle lock 4 is provided with two downwardly-projecting surfaces 8 and 15, the latter, 15, of which engages with a projection 16 on the tail of the knuckle 2 in order to remove the lock 4 from the lock-seat seat 9, and the other 8, for resting on the lock-set ledge formed on the guard' arm side of the coupler head, and with a downwardly-projecting stem 7 operated by a bell-crank lever 11; the surface of contact of the bell-crank lever and stem form an anti-creep device for the lock. In the locked position of the coupler, Fig. 3, the acute angle at the end of the bell-crank lever 11 engages curved surfaces 22, 23 on the stem of the lock which form a frictional grip and prevent the lock 4 from creeping upwards. In order to set the coupling, the end 14 of the bell-crank lever is pulled outwardly until the lock takes up the position shown in dotted line, where the lock rests on the lock-set ledge 9 of the coupler head. Further upward movement of the lock causes the projection 33 to strike the end 32 of the knuckle extractor 26 to open the knuckle block. A projection 28 on the bell-crank lever 11 prevents lateral movement of the stem 7 towards the pivot 12 of the bellcrank lever when the block 4 is being raised.
Patent GB-691328-A (GB)
Title: Improvements in or relating to cross-winding machines
IPC: B65H54/50
Filed: 1950-11-02
Abstract: 691,328. Winding yarn. REINERS, W. Nov. 2, 1950 [Nov. 21, 1949], No. 26726/50. Class 120(ii) A cross - winding machine having a slit or grooved package-driving drum 1, is provided with a thread guide or tensioner 6 constituting a non-traversing thread running-on point, the arrangement being such that the line of thread between the. running-on point 6 and the drum 1 makes an angle 9 of less than 90 degrees with the horizontal plane 8 as shown the angle 11 between centre line 10 of the supply cop 5 and the running-on thread preferably being less than 180 degrees and the vertical distance of the drum axis above the point 6 being less than the diameter of the drum.
Patent GB-915784-A (GB)
Title: Process for the purification of carbon tetrachloride
Inventor: DUNBAR JOHN CHADWICK
IPC: C07C19/041
Filed: 1960-08-03
Abstract: Carbon tetrachloride prepared by chlorinating carbon disulphide and contaminated with sulphur chlorides is purified by treating the crude product with an aqueous solution of an inorganic sulphite to convert the sulphur chlorides to water-soluble salts, and separating the carbon tetrachloride phase.  Suitable sulphites are the sodium, potassium and pure ammonium salts.
Patent GB-642427-A (GB)
Title: Improvements in and relating to apparatus for raising weights
IPC: A01B63/04
Filed: 1947-10-08
Abstract: 642,427. Load-handling machines. PUIGVERT, J. V. Oct. 8, 1947, No. 27014. Convention date, Oct. 22, 1946. [Class 78 (iii)] [Also in Group I] A lever device for raising weights has a weight-balancing spring 11 connected by a rod 10 and pin 9 to one end of a lever 1 which is pivoted to a pin 2 carried by a bar 3 and quadrant 4 fixed to a frame 6, 7, 8, 8<1>, and a cable 16 connects the lever with the weight to be raised. The other end of the spring is adjustably connected to frame - member 8<1>. A pawl, situated behind lever 1 is adapted to be withdrawn by the handle on lever 1 from a notch, also not shown, and can be released to engage a second notch 12, the two notches defining the limits of motion. As used on a tractor, members 8, 8<1> are secured to the tractor frame and a bar 13 connects the upper end of bar 3 to the differential housing. This housing may also support a member having a pulley on its outer end around which the cable may be passed to raise its line of action.
Patent GB-369192-A (GB)
Title: Improvements in or relating to hair curling apparatus
IPC: A45D2/36
Filed: 1930-09-10
Abstract: 369,192. Hair-curling appliances. STRÍHER, F., (trading as STRÍHER, FABRIK FUR FRISEURBEDORF, F.), Rothenkirchen, Vogtland, Germany. Sept. 10, 1930, No. 27092. Convention date, Sept. 10, 1929. Void [Published under Sect. 91 of the Acts]. [Class 131.] An electrically-heated hair curler comprises a waisted metallic tube h within which is mounted an insulating tube e carrying an electrical resistance b which is wound on an insulating rod a and is connected to terminals c, d. The tube e and rod a may be of steatite. The ends of the tube h are surrounded by layers of asbestos covered by ribbed sleeves i, k of rubber, cork or the like.
Patent GB-196542-A (GB)
Title: A motor car ambulance fitting
IPC: A61G3/00
Filed: 1922-10-07
Abstract: 196,542. Riemvis, W. F. Oct. 7, 1922. Ambulances; litters.-To utilize a motor-car for ambulance purposes, a chain frame within which cloth is stretched is suspended by a resilient support on adjustable feet comprising several parts and adapted to be fixed between the seats of the car. The stretcher frame comprises a chain 1 arranged to form a rectangle, each corner ring 2 being connected by a spring 5 and a hook to one of a series of rings on a cross-piece 17. Transverse bows support the cloth on the frame. The cross-pieces 17 are attached to spring steel strips 14 adjustably clamped to slotted steel strips 12, the ends of which are threaded on to the tops of rods 11 supported on adjustable pins passing through one of a series of holes in pipes .9. The pipes 9 are passed over the ends of feet uprights clamped to the seats, the feet 6 being fixed to the floor. The parts before assembly are stowed under the seats. The stretcher frame may serve as a litter.
Patent GB-426307-A (GB)
Title: Improvements in and relating to screens for kinematographic projections and the like
IPC: G03B21/60
Filed: 1934-09-21
Abstract: 426,307. Projection screens. DARIMONT, L., 266, Rue Adolphe Willemyns, Brussels. Sept. 21, 1934, No. 27203. [Class 97 (i)] The sheets of screens comprising several sheets of transparent material each have a multiplicity of spherical bosses and recesses close together on both sides so as to form lenses in the sheets or in the spaces between them; thin flat sheets of transparent or opaque glossy material, or non-glossy network, may be used in combination with them. Fig. 1 shows sheets 1 of cellulose acetate &c. and of uniform thickness, formed with bosses 2 and recesses 3 and arranged so that lenticular air spaces are formed. As shown in Fig. 2, lenses 7<1> are formed in the sheets, and the sheets are arranged to produce lenticular air spaces 7<11>. A thin glossy flat sheet 5 of cellulose acetate may be interposed between the sheets 1 ; one such sheet may be used in conjunction with each four of the sheets 1. An additional or alternative sheet 6, Fig. 4, made opaque or not, or with a metallized surface, may be provided at the back of the screen, and a non-glossy network 11 of cotton net, tulle, &c., preferably dead white in colour, may be provided at its front. A second network, preferably of smaller mesh than the network 11, may be arranged immediately in front of the sheet 5. Other combinations of sheets and networks are referred to, and the sheets and networks may be coloured in various ways. The sheets may be held in a frame 12.
Patent GB-1007866-A (GB)
Title: Stabilized polymeric compositions
IPC: C07C43/205
Filed: 1962-07-16
Abstract: A crystalline polyolefin is stabilized with a C8 to C30 dialkyl ether of hydroquinone, e.g. 1,4-didodecyloxybenzene or 1,4-dioctadecyloxybenzene. Optional ingredients specified include polycondensates containing basic nitrogen, calcium stearate, and other stabilizers such as lauryl thiodipropionate and 4,41-thiobis-6-tert.-butyl metacresol.ALSO:The didodecyl or dioctadecyl ether of hydroquinone is prepared by reaction of lauryl or octadecyl chloride with hydroquinone in methyl alcohol containing sodium methylate.  The crude ethers are precipitated with aqueous hydrochloric acid and recrystallized from acetone.
Patent GB-701555-A (GB)
Title: Autogenous roasting of sulphide ore concentrates
IPC: C01B17/50
Filed: 1951-11-21
Abstract: In roasting a sulphide or concentrate, e.g. zinc sulphide or pyrites concentrate, by maintaining an ignited porous body of mobile pellets of the ore concentrate in a vessel rotatable about its substantially horizontal major axis, and introducing air downwardly into the body of moving pellets below the surface thereof, e.g. as disclosed in Specification 701,556, volatilization of any cadmium, lead, arsenic, silver and present is effected by introducing the air at a plurality of axially spaced points under such conditions as to establish and maintain a plurality of non-contiguous brightly incandescent roasting zones separated from each other by a visibly less bright mass of moving pellets.  The temperature of the roasting zones may thus be 1050 DEG -1200 DEG C., with the adjacent zones 50 DEG -100 DEG C. lower.  The volatilized solids are separated from the roaster gas by a combination of cyclone separation and electrostatic precipitation; the zinc and cadmium content is dissolved in sulphuric acid, and the solution used as a binder in the production of the pellets. The pellets, which term includes short extruded rods &c. may be up to 1/2 inch diameter.
Patent GB-771222-A (GB)
Title: Improvements in or relating to high-voltage machines for the production of high-speed electrically-charged particles
IPC: H05H5/04
Filed: 1955-09-26
Abstract: 771,222. Electrostatic generators; rectifying. HAEFELY & CIE. AKT.-GES., E. Sept. 26, 1955 [July 11, 1955], No. 27343/55. Classes 35 and 38 (2). A high-voltage generator b of cascade rectifier or electrostatic type is built into a sealed pressure vessel sunk in the ground, the vessel consisting of the caisson c used in the excavation of the pit. The caisson may be a single tube or consist as shown of a series of sections c<SP>1</SP>, c<SP>2</SP>, c<SP>3</SP>, c<SP>4</SP> welded together and polished internally. The internal surface may be made more uniform by means of an earthed screen e.
Patent GB-1112807-A (GB)
Title: Piezoelectric pressure transducer and method for its manufacture
IPC: G01L9/00
Filed: 1966-06-20
Abstract: 1, 112, 807. Measuring pressure electrically. H. LIST. June 20, 1966 [June 22, 1965; July 20, 1965], No. 27402 /66. Heading G1N. In a Piezo-electric pressure transducer, Fig. 1, a pressure transmitting membrane 8 is formed integrally with a cylindrical member 7, welded to the transducer housing 1. The membrane is arranged to be in contact with one end of a prestressing cylindrical member 4, e. g. a tube spring, containing the Piezo-electric element (25), Fig. 5 (not shown), e. g. of laminated quartzes. The membrane is reinforced circumferentially by providing the inside surface of the membrane where it merges into the cylindrical member with a groove 11, see also Fig. 3 (not shown), which is provided with a gloss surface finish. A cylindrical chamber 18, surrounding the member 4, is provided through which cooling liquid can flow via bores 19. In one embodiment the membrane is protected by a cylindrical member 14 arranged round the member 7 and attached to the casing 1. In a second embodiment, Fig. 2 (not shown), protection of the membrane is obtained by inserting the cylindrical member (7') into the housing 1 in the reverse direction, the member (7') being then held in place by a mushroom-shaped cap (16), an axial hole through the cap (16), providing for communication of the gas whose pressure is to be measured to the membrane (8'). In a modification of the embodiment of Fig. 1, the chamber 18 is divided into two semi-cylindrical parts by two partitions (23), Figs. 5-7 (not shown), the two halves of the chamber (18) being in communication via channels (24) in the bottom surface (4') of the pre-stressing member (4).
Patent GB-619147-A (GB)
Title: Improvements in or relating to selective mechanical movement mechanism, for example, a steering mechanism
IPC: B62D3/04
Filed: 1946-09-12
Abstract: 619,147. Cam mechanism. STEVENS, A. H. (Thompson Products, Inc.). Sept. 12, 1946, No. 27404. [Class 80 (iii)] Cam mechanism for transmitting a limited rotary movement of a variable ratio between the driving and driven members is particularly described in relation to a vehicle steering mechanism. In Figs. 2 and 5, the steering shaft 46 of a vehicle operates the drag link 19 of the steering linkage through a worm 45 adapted to move a shaft 21 longitudinally by means of a follower 38 rotatably mounted thereon. This longitudinal movement of shaft 21 is converted into a rotary movement which is applied to the pitman arm 20 secured thereto by means of a link 27 having a ball-joint connection 32 with the boss 20a of the pitman arm 20 and anchored at 26 through another balljoint to an adjustable block 25. Adjustment of the block 25 in a slot 24 of an arm 23 fixed to the casing of the mechanism can be effected by the driver of the vehicle through a rod 31 and crank 28 to alter the arc of movement of the end 32 of the rod 27 and therefore vary the rotary movement of the shaft 21 relative to its longitudinal movement and so vary the effective steering ratio as desired in accordance with the nature of the ground. The longitudinal movement of the shaft 21 being transverse to the drag link 19 has no effect on the steering linkage. In a modification, the pitman arm is secured to the shaft 21 through a splined connection and a boss on the shaft is anchored as before by the link 27 so that the rotary movement of the shaft only is imparted to the pitman arm. In another modification the worm follower is mounted eccentrically of the shaft 21 and to compensate for the rotary movement of the shaft tending to swing the follower out of mesh with the worm, the worm is made of hour-glass shape. This arrangement provides for increased reversibility from extreme steering angles. In a still further modification the follower shaft is tubular and concentric with the wormshaft and has two follower members rotatably and eccentrically carried thereon, which arrangement allows of the rotary movement of the follower shaft without the followers disengaging from a parallel worm. An alternative device is shown in Figs. 10 and 11 for converting the longitudinal movement of the driven shaft 121 into a variable rotary movement. This comprises a cam disc 131 having an arcuate slot 132 in which is engaged a ball-stud 133 on the boss 120a of the pitman arm 120. The angular position of this cam disc is adjustable at will by links 130, 127 and crank 125 to vary the amount of rotary motion transmitted.
Patent GB-714559-A (GB)
Title: 2-(4-chloro-o-toloxy) ethanol
Filed: 1952-10-31
Abstract: The invention comprises 2-(4-chloro-o-toloxy)-ethanol, and the preparation thereof by reacting an alkali metal 4-chloro-o-cresolate with an ethylene halohydrin.  The halohydrin is preferably employed in a substantially equimolecular proportion or slight excess, and is advantageously added in a steady stream to an aqueous solution of the cresolate at 70-100 DEG  C., after which the mixture may be maintained at 90-110 DEG  C. to complete the reaction.  The product is useful as a modifier in plastic compositions, as a solvent, as a toxic agent in plant growth control compositions, and as an intermediate for more complex compounds.  In an example, sodium 4-chloro-o-cresolate, prepared in situ from 4-chloro-o-cresol and aqueous caustic soda, is reacted with ethylene chlorohydrin by the preferred procedure.
Patent GB-275457-A (GB)
Abstract: 275,457. Lindholm, H. V. F. Nov. 17, 1926. Adding-apparatus.-In the type of apparatus employing numeral-carrying, style-adjusted slidable bars 2, transfer is effected by shifting endwise the index numerals of the next higher denomination these numerals being marked on index bars 7 pin-and-slot mounted on the base for such endwise displacement. The numbers on the bars 7 increase downwardly in opposition to those on the numeral bars 2 so that addition is performed by moving the latter to bring one figure thereon adjacent to the other figure on the index bar. The base 1 may constitute one wall of an envelope to receive cards provided with multiplication tables to expose the results of multiplication or division through apertures 15, 16.
Patent GB-1454283-A (GB)
Title: Indicator/alarm apparatus
IPC: G08B25/14
Filed: 1973-06-09
Abstract: 1454283 Selective signalling G P ELLIOTT and R J REDDING 5 June 1974 [9 June 1973] 27560/73 Heading G4H An indication or alarm apparatus transmits in binary code the signal from any of a plurality of sensors to a corresponding plurality of indicator devices via a converter so that all those that do not correspond to an activated sensor are shorted out. When the indicators are in a fire hazard zone, electrical safety barriers may prevent high voltages in the event of a wire or indicator breakdown. The indicating devices are preferably LEDs but may be incandescent lamps or electromechanical indicators. The apparatus shown provides fifteen indicators (0-14). The activated sensor is coded in four bit binary and fed to input lines (7-10). When no sensor is activated a 1111 signal is transmitted. The binary signal is converted at 41 to a 1 out of 16 signal and switches off associated transistors 35 and 36 switching LED 6 on. When no sensors are energized to 1111 signal energizes LED 24 which may be green, the others being red. An emergency battery power supply may be provided.