baber/WOPTO huggingface dataset:
Patent GB-576405-A (GB)
Title: Improvements in apparatus for measuring electrical resistance
IPC: G01R27/18
Filed: 1944-09-01
Abstract: 576,405. Resistance measurements. PHILIPS LAMPS, Ltd., and TAYLOR, H. G. Sept. 1, 1944, No. 16661. [Class 37] Apparatus used particularly for measuring earth resistance in installations, comprises an ammeter A having two ranges in which for a given deflection the currents bear a fixed ratio, two resistances R1, R2 having the inverse ratio to this fixed ratio, and a switch W enabling either the resistance R1, or the resistance R2 in series with a variable resistance p, to be connected in the meter circuit. The terminals 5, 7 are connected to the live lead of the installation and the earth connection. The values of the resistances R1, R2 and of the shunts S1, S2 are so chosen that a given current through R2 gives the same ammeter reading as a current R2/R1 times as great through the resistance R1. A manually operated pointer is set to record the value of the meter deflection with R1 in the circuit. The value of the variable resistance p is then adjusted with resistance R2 in circuit, until the meter deflection is equal to this set value. In practice R2 may be eleven times the value of R1, in which case the value of the resistance being measured will be equal to p/10. The resistance p is calibrated to give a direct reading of this value. In a modification the ammeter is in the form of a double wound moving iron instrument, in which the ratio of the turns corresponds with the ratio of the shunts S1, S2. In another modification the ammeter is connected to the secondary of a current transformer having two primary windings, which are connected in series with the resistance R1 and the resistances R2, p respectively. The ratio of these two windings is made the inverse of the ratio of the values of the resistances R1, R2 so that for equal currents the deflections are in this ratio. A single pole switch only, is used in these modifications ; it can be spring controlled so as normally to be set in the lower current position.
Patent GB-457317-A (GB)
Title: Improvements in methods for the manufacture of luminous electric discharge containers with fluorescence
IPC: C09K11/02
Filed: 1936-06-15
Abstract: 457,317. Coating glass surfaces. TENNANT, W. J., 111, Hatton Garden, London.-(Soc. Anon. pour les Applications de l'Electricite et des Gaz Rares Etablissements Claude-Paz & Silva ; 8, Rue Cognacq- Jay, Paris) June 15, 1936, No. 16665. [Class 56] [See also Groups XL and XX] In making fluorescent electric discharge containers by depositing first a layer of binding agent formed by a mixture of boric acid with a fatty or oily substance such as glycerol and then a layer of fluorescent material, a hard glass container having a softening point above 577‹ C., the melting point of boric anhydride, is used and is heated, after application of the two layers, to a temperature above 577‹ C. but below the softening point of the glass to drive off the fatty substance and cause a strong adhesion of the fluorescent material. This material is stable at the heating temperature and may be silicates of zinc or tungstate of calcium. The heating temperature is below 650‹ C. if the container is of the glass known under the Registered Trade Mark " Pyrex," and about 1100‹ C. if the container is of quartz. The coated container may be worked with a blowpipe.
Patent GB-502994-A (GB)
Title: Improvements in and relating to jigs or the like for constructing or assembling flatworkpieces
IPC: B25H1/00
Filed: 1938-06-03
Abstract: 502,994. Jigs. JUNKERS FLUGZEUGUND-MOTORENWERKE AKT.-GES. June 3, 1938, No. 16678. Convention date, June 17, 1937. [Classes 83 (ii), 83 (iii), and 83 (iv)] A jig for supporting planiform workpieces such as aircraft parts (wings, frames, steering surfaces, ailerons and the like) during operations' such as riveting comprises a main girder and a number of transverse girders supported on the main girder by means of straps so as to be longitudinally and rotatably adjustable. A main girder a, Fig. 4, of circular cross-section is adjustably supported by trestles e and the transverse girders b are adjustably secured to the girder a by straps c. A light frame d which corresponds roughly to the shape of the workpiece is attached to the members b. In a modified form, Fig. 3, a strap c adapted to embrace a main girder of rectangular cross section is provided with an angle bracket k to which a transverse member b is secured by means of bolts n, passing through arcuate slots m in the bracket to allow of rotary adjustment.
Patent GB-219960-A (GB)
Title: Improvements in electric wave filters
IPC: H03H7/01
Filed: 1924-07-11
Abstract: 219,960. Western Electric Co., Ltd., (Assignees of Wolfe, W. V.). July 31, 1923, [Convention date]. Filter circuits; wired wireless systems; multiplex signalling. - An electric wave-filter, such as is used in carrier wave signalling systems, is provided with reactance elements of which at least one consists of entirely non-magnetic material. The Figure shows a plurality of twoway carrier wave signalling channels I - - III connecting ordinary signalling stations A - - C to a common transmission line ML. The lowfrequency circuit L-1 is connected through the hybrid coil H-1 to the transmitting branch, comprising oscillator O-1, modulator M-1 and bandfilter MF-1, and to the receiving branch comprising band filter DF-1, detector and amplifier DA-1, and voice frequency filter F-1. The band filters are of similar construction, except that the values of the elements are so chosen as to pass differing range frequencies. They may be connected in series or parallel to the line either as shown, or through shielded transformers, or through a hybrid coil and balancing network. Each filter is made with two kinds of inductance coils, 18, 19 having magnetic cores and 16, 17 having non-magnetic cores, which is stated to prevent cross talk due to magnetic modulation in the end sections of the filters.
Patent GB-560342-A (GB)
Title: Improvements relating to electric cable joints
IPC: H02G15/10
Filed: 1942-11-25
Abstract: 560,342. Cable joints. BRITISH INSULATED CABLES, Ltd., and HOLTTUM, W. Nov. 25, 1942, No. 16703. [Class 38 (i)] An insulating tube 6 surrounding a cable joint and overlapping the ends 4 of the insulation of the cables, is spaced therefrom by hollow insulating members 7 abutting on the cable insulation and secured in place by insulating tape, cord, &c. 9 passed round the cable insulation 4, through the members 7 and through holes 8 in the tube 6. Two members 7 located at right angles may be used, the tape &c. 9 being passed under and over the cable end and then over the edge of the tube 6 to form a second bight under the cable as shown in dotted lines. The tube 6 may be formed by wrapping pasted paper on a mandrel and the members 7 may be made similarly. The tube 6 may be mounted at an inclination to the cable axis so as to allow free escape of air when the surrounding casing is filled with compound.
Patent GB-1395571-A (GB)
Title: Apparatus for mixing a plurality of components into a flowable mass and for delivering the same
IPC: B29B7/26
Filed: 1972-04-12
Abstract: 1395571 Mixing A P VAKUUMTECHNIK GmbH 12 April 1972 [17 April 1971] 16793/72 Heading B1C Apparatus for mixing and delivering flowable materials comprises a mixing container 1 having a lower discharge region 9 and a connection 65 for a vacuum pump 32, and a reciprocable mixing member 2 carrying a closure member 4 engageable in a discharge bore 5. Material to be mixed is charged through a closable inlet 29 and the mixing member 2 is reciprocated by fluid pressure means 39-45, the closure member 4 being adjusted to a lowermost position relative to the mixing member 2 by means of an adjustable screw connection 52-56, so that it remains in sealing relationship with a sleeve 12 defining the bore 5. The material is cycled through bores 34 and pipes 36, the pump 32 acting to remove air, while a heating jacket 23 allows a required temperature to be maintained. For discharge, the closure member 4 is withdrawn into a bore 46 of the mixing member 2. Reciprocation of the member 2 allows the material to enter the bore 5 for discharge preferably through a one-way valve 14, the adjusted position of the member 4 governing the quantity delivered at each stroke. A channel 58 and passage 59 facilitate the introduction of flushing medium after use of the apparatus e.g. in the case of hardenable materials.
Patent GB-796247-A (GB)
Title: Improvements in or relating to textile treatment apparatus
IPC: D06B23/04
Filed: 1956-05-31
Abstract: <PICT:0796247/IV (b)/1> <PICT:0796247/IV (b)/2> A length of textile material 4, Fig. 3, which is to be treated on a perforated beam 1, Fig. 1, through which treating agent passes, has strips 7 and 8 of impervious material fastened to its longitudinal edges, and a loop 19 formed at one end.  Starting with the end 6, the material 4 is wound upon the beam so that the strips 7 and 8 form rolls 9 and 10.  A bar 15 is then passed through the loop 19 and engaged into supports 16 carried by collars 17 rotatably adjustable on the beam.  The so-formed roll 3 of material is then tightened by rotating the collars 17 which are then fixed to the beam by screws 18.  The edges of the rolls 9 and 10 are then fastened down by clamps 11 to form sealing spaces 12, and the treating agent is passed through the beam.
Patent GB-546049-A (GB)
Title: Improvements in or relating to cooking and heating apparatus
IPC: A47J39/00
Filed: 1940-11-23
Abstract: 546,049. Heating and cooking stoves. HEATHER, R. Nov. 23, 1940, No. 16832. [Class 126] [Also in Group VI] Heating and cooking apparatus comprises a chamber having a closely-fitting door B, an insulating jacket C and an insulating door D. The jacket has detachable sections such as E and F. Electrical heating elements H 1 , H 2 , are provided, which may be disposed either within the chamber or between it and the jacket and may be of the sealed " immersion type or the open type. There is a steam inlet J and a steam outlet K. The inlet J is plugged with heatinsulating material when steam heating is not being used. The outlet K may be fitted with a control to regulate the steam pressure within the chamber. The uses. of this apparatus are :- (1) As a steam heater. (2) As an externally heated oven. The section E is removed and the apparatus placed near, say, a gas fire, or the bottom section F is removed and heat applied; as by a gas ring or spirit stove, to the underside of the chamber. (3) As a container.for heating water, the apparatus being positioned doors uppermost. (4) As an electrically-heated stove. The jacket C and door D may be of asbestos, cork, fire-clay or fibre.
Patent GB-1340167-A (GB)
Title: Triorganotin compounds
IPC: C07F7/22
Filed: 1972-04-12
Abstract: 1340167 Asymmetric triorganotin compounds M & T INTERNATIONAL NV 12 April 1972 [14 April 1971] 16894/72 Heading C2J The invention comprises (a) compounds of the formula (R n R<SP>1</SP> 3-n S n ) a Y where R is a C 1-6  linear aliphatic hydrocarbyl radical, R<SP>1</SP> is a cycloaliphatic hydrocarbyl radical of up to 8 carbon atoms, R and R<SP>1</SP> may be inertly substituted, n is 1 or 2, Y is Cl, Br, F, OH, carboxylate, carboalkoxy, phenoxy or the di-valent radicals -O- or -S- and n is equal to the valency of Y, and (b) a method of preparing compounds of formula R n R<SP>1</SP> (3-n) SnX where X is Cl or Br, R, R<SP>1</SP>, and n are as above but R<SP>1</SP> may additionally be C 1-8  aliphatic hydrocarbyl with the proviso that the molecular weight of R<SP>1</SP> exceeds that of R by at least 42 except when R<SP>1</SP> is cycloaliphatic, by reacting SnX 4  and R (n+1) R<SP>1</SP> (3-n)  Sn in equimolar quantities usually at -25 to 80‹ C. in a hydrocarbon solvent and under anhydrous conditions, adding a solvent such as water or aqueous mineral acid to dissolve the by-product RSnX 3 , and isolating the triorganotinhalide. In the examples, a number of asymmetric triorganotinchlorides are prepared and the following reactions also effected:- dicyclo-hexylbutyltin chloride and dibutylcyclohexyltin chloride are each converted into (a) the corresponding bis-(triorgano) sulphide by reaction with Na 1 S.9H 2 O; (b) the triorganofluoride by means of KF.2H 2 O; (c) the bis- (triorgano) oxide by reation NaOH in the case of the former to yield the triorganohydroxide which is subsequently dehydrated, and directly by means of NaOH in the case of the latterthe bis(triorgano)oxide is itself converted to the triorgono acetate and 2-ethylhexanoate by reaction with the appropriate acid. Dicyclohexylbutyltin chloride is also reacted with phenol to yield the phenoxide. The compounds (Bu 2 MeSn) 2 O, (MeOct 2 Sn) 2 O and Me 2  (cyclohexyl) SnOH are also prepared from the corresponding chlorides. The compounds generally have pesticidal properties, especially those of the formula RnR<SP>1</SP> (3-n) SnX above, and may incorporated in various compositions by the use of solvents, diluents or solid extending agents including powdered cork, wood or pecan or walnut shells.
Patent GB-1471928-A (GB)
Title: Mechanism for connection of a flexible conductor to a further  conductor
IPC: H01R12/77
Filed: 1974-04-18
Abstract: 1471928 Electric couplings SOC INTERNATIONALE DE MECANIQUE INDUSTRIELLE SA 18 April 1974 [20 April 1973] 16956/74 Heading H2E To hold conductors 7, 7 1 , 7 3  of a flexible tape cable 1 in contact with corresponding conductors 6, 6 1 , 6 3  (6 2  not used) of a rigid system 2, rigid coupler 10, e.g. of steel bridges across widened head 4 of cable 1 with projectors 14, 141 entering slots 5, 5 1  from above. The coupler with attached tape cable is then fed forward, uprights 12, 12 1  entering slots 9, 9 1  while cut out resilient fingers 15, 151, 15 2 , 15 3  press the insulated back of the cable towards conducting segments 6, 6 1 , 6 2 , 6 3 , making contact between conductors 7-6, 7 1 - 6 1 , 7 3 -6 3 . Resilient detents 16, 16 1  in supports 13, 13 1  lock into recesses 8, 81 to secure the connection, and may be released by a suitable tool. Some conductors may be omitted as shown.
Patent GB-458360-A (GB)
Title: Improvements relating to reciprocating engines, pumps or compressors of the swash- or wobble-plate type
IPC: F16H23/08
Filed: 1935-06-12
Abstract: 458,360. Swash - plate mechanism. TURNER, K. K., 2, Tudor Street, London. June 12, 1935, No. 16959. [Class 80 (iii)] [See also Groups XXVI and XXVIII] In an engine, pump, or compressor having a wobbler, the means employed for preventing rotation of the wobbler are adapted to yield within limits. As shown in Fig. 1, the wobbler 4 has three projections 11, at equal angular distances apart, which are connected by rods 12, with universal joints, to pistons 13 in tangential cylinders 14. The pistons are exposed to the fluid pressure in a pipe 16, which also communicates with a balancing cylinder 17 containing a spring-pressed piston 18. In a modification, Fig. 3, forked rods 22 are pivoted to the wobbler in the median plane, the pivots 23 being nearer to the centre of oscillation than the pivots 24. The rods pass through curved slots 25 in the wobbler and their ends 21 slide through discs 33 having a spherical engagement with rods 31. The latter carry at their ends pistons 13, 13a, moving in cylinders 14, 14a, which are connected to two separate systems of piping 16, 16a, similar to that shown in Fig. 1. In a further modification, Fig. 6, the ends of projections on the wobbler are guided in slots in arcuate members 26, which are carried by rods 27, 27a having pistons 13, 13a, which are acted on by fluid pressure in the manner shown in Fig. 3. Alternatively, the fluid pressure may be replaced by springs having a sinusoidal stress-strain relationship. British Specifications 327,161, [Class 80 (iii)], and 398,553 and U.S.A. Specification 1,233,635 are referred to.
Patent GB-868169-A (GB)
Title: Arrangement for fixing the collector head on the trolley pole of electric vehicles
IPC: B60L5/08
Filed: 1959-05-19
Abstract: 868,169. Trolley heads. BROWN, BOVERI & CIE A.G. May 19, 1959 [May 17, 1958]; No. 16972/59. Class 104 (3). In an arrangement for securing a collector head 3 on a trolley pole 1 or a part 1a rigidly secured thereto, a collector head carrier 6 is pivotally mounted on the pole 1 or part 1a so as to be rotatable in a vertical plane between upper and lower stops 11, 12, the lower stop 12 of which limits the downward rotation of the carrier 6 to an inclined position in which the top of the collector head 3 is below the level of the top of the pole. A helical (8) or leaf spring, rubber or a combination of metal and rubber biases the carrier 6 towards either of the stops 11, 12.
Patent GB-1220651-A (GB)
Title: Protective dome for underwater mooring swivel
Inventor: MASCENIK JOHN
IPC: B63B22/02
Filed: 1969-04-01
Abstract: 1,220,651. Mooring ships. ESSO RESEARCH & ENG. CO. 1 April, 1969 [8 May, 1968], No. 16994/69. Heading B7S. An underwater mooring comprises a base 22, a frame 10 rotatably mounted in bearings 20, 21, a swivel joint 26 rotatable with the frame, a conduit 38 for transferring fluid cargo to and from the swivel joint, a water excluding dome 40 secured to the frame and means for introducing into the dome a fluid at a pressure sufficient to exclude water from the region of the bearings and the swivel joint. In the embodiment shown float controlled valve 58 admits a gas such as oxygen or nitrogen through line 54 to keep the seawater at level 60.
Patent GB-152396-A (GB)
Title: Combined wind-screen and hood for side-cars for use with motor-cycles
IPC: B62K27/16
Filed: 1919-07-08
Abstract: 152,396. Bearcroft, R. L. C. July 8, 1919. Hoods.-A combined hood and wind-screen for vehicles consists of a number of sector-shaped pieces pivoted at the some point and nesting inside each other when turned back. Fig. 3 shows the sectors arranged to provide a closed car. The sector 2 has a transparent window in the front. The sector 2 is formed of transparent celluloid and can be brought forward to form a wind-screen as shown in Fig. 1, the sectors 2 and 3 being turned back, with the sector 2 nesting inside the sector 3. All three sectors can be turned back if desired. The frames of the sectors are mounted in sockets 10, 11, Fig. 6, formed of flanged metal stampings and terminating in dials 12 enclosing washers 24. The disks 12 and washers 24 are rotatably mounted on a D-shaped sleeve 15, alternately with washers 17 which will not rotate on the sleeve. Through the sleeve 15 passes a bolt 4, screwed to engage with a supporting bucket 16 and provided with handles 19, 20, whereby it can be turned to grip the disks 12 and washers 17. The disks 12 may be provided with handles 21 for moving the sectors.
Patent GB-278103-A (GB)
Title: Improvements relating to electric regulating devices
IPC: H02P9/10
Filed: 1926-07-07
Abstract: 278,103. British Thomson-Houston Co., Ltd., Petch, H. S., and Parry, R. D. July 7, 1926. Regulation, automatic. - In regulating system for dynamoelectric machines in which a characteristic, which may be the voltage, current, powerfactor &c., is controlled by varying the excitation of the exciter of the generator, an element responsive to the controlled characteristic is clamped or prevented from adopting an extreme position in the event of a short circuit or other abnormal condition. The application of the device to a regulator of the Tirrill type maintaining constant the of a three-phase generator is shown in Fig. 1. The characteristic-responsive magnet 18 is energized through a transformer 19 according to one of the interphase voltages of the generator 5. In the event of a short circuit the armature 21 of an additional relay with windings 23, 24, energized from transformers 25, 26 in accordance with the loads of two of the phases, opens contacts 27, 28 in series with the main contacts 15, 16 and a winding 14 on the differential relay 10, which controls contacts 12 to short-circuit the rheostat 9 in the field circuit of the exciter 7. The armature 21 is connected by a link 32 to a lever 33, the end 34 of which is shaped to press outwards the operating limbs 35 of tongs 30, so that, when the contacts 27, 28 are opened, the tongs grip the core of the magnet 18 and prevent it from moving to an extreme position, A working construction is described in which magnets 23, 24 have separate pivoted armatures controlling contacts in series. A flat plate 48 with a hole 40 slightly larger than the core 50 of a magnet 18 is carried by two bent arms 52 supported on brackets 53. The vertical part of each of the arms 52' is engaged by a stop on one of the armatures, so that, when either armature moves as the result of a short circuit, the plate 48 is turned so that the core is gripped by the periphery of the hole 49.
Patent GB-763018-A (GB)
Title: Production of ketene
Filed: 1954-06-11
Abstract: Ketene is prepared by the vapour phase catalytic pyrolysis of acetic acid at a temperature between 625 DEG  and 750 DEG  C. and under a pressure between atmospheric pressure and about 20 p.s.i.g., using a reaction vessel in which the surfaces contacting the ketene are constructed of a steel containing between 3 and 4 per cent of molybdenum and between 17 and 20 per cent chromium and 8 to 12 per cent nickel as major alloying metals, the contact time of the vapours in the pyrolysis zone being between 5.0 and 0.1 secs. Specified steels are U.S.  Types 316 and 317 stainless steels. Preferably, there is introduced into the products issuing from the reaction vessel a substance such as ammonia, pyridine, aniline or suitable aliphatic amine, which will neutralize the catalyst and retard recombination of the ketene with water or acetic acid. Thereafter, the gases may be cooled and the still gaseous ketene separated from the condensed products, e.g. by means of a cyclone separator. Advantageously, some acetic anhydride is added to the acetic acid feed-stock to reduce acetic anhydride formation in the pyrolysis; thus, the liquid condensate separated from the ketene, comprising acetic anhydride, water and unchanged acetic acid may be azeotropically distilled with e.g. benzene or hexane to remove the water and the residue recycled with fresh acid to the pyrolysis zone. Pyrolysis catalysts which may be used include volatilizable phosphates and phosphoric acid esters such as triethyl phosphate, tricresyl phosphate, ammonium and di-ammonium phosphates, dimethyl ammonium phosphate and pyridinium phosphate; the abovementioned addition of a neutralizing agent may be dispensed with when the catalyst is a volatile base salt of phosphoric acid.  Examples are given.
Patent GB-212182-A (GB)
Title: Improvements in or relating to temperature indicating devices
IPC: G01K5/62
Filed: 1923-07-05
Abstract: 212,182. Folkes, G. E., (Packard Electric Co., Ltd.). July 5, 1923. Alarms operated by expansion of solids. - A thermometer for indicating the highest temperature attained by an electric transformer &c. comprises a heat-sensitive element arranged to rotate a shaft which actuates an indicator in one direction only: an alarm device may be included. The heat-sensitive element, which in the form shown consists of a bi-metallic coil 11, is secured at one end to the vertical shaft 12, and the indicator consists of a drum 13 arranged within a casing 4 and having a hub 14 with a polished lower surface which rests on the polished surface of the portion 2 of the casing. The shaft 12 passes freely through the hub 14 and carries a collar 15 carrying an arm 16 which engages an arm 17 secured to the hub 14 so as to rotate the drum 13 when the temperature rises. The drum is re-set bv a rotatable friction disc 20 which can be pushed up by hand to engage a similar disc 18 on the hub 14. The alarm device shown in Fig. 4 comprises a cam 21 secured to the hub 14 and adapted, when a predetermined temperature is reached to open the contacts 22 and introduce a flasher 25 into the circuit of a lamp 24. In a modification the cam closes the circuit of the lamp. The lamp may be replaced by a bell &c.