baber/WOPTO huggingface dataset:
Patent GB-364892-A (GB)
Title: Improvements in and relating to fire extinguishers
IPC: A62C13/00
Filed: 1931-02-12
Abstract: 364,892. Fire-extinguishers. SOC. ANON. ASSURO, 42, Rue de Paradis, Paris. Feb. 12, 1931, No. 4400. Convention date, Feb. 12, 1930. [Class 47 (ii).] An extinguisher of the kind embodying a compressed gas capsule 11 is provided with a tube 18 connecting the capsule-enclosing sleeve 10 with the upper end of the extinguisher above the normal liquid level, in order to conduct the gas direct to the space above the liquid. The capsule is forced against a piercer 16 by a plunger 13, a frangible sealing disc 19 being arranged between the plunger and capsule. Holes 12 in the sleeve 10 permit access of the liquid to the nozzle 8 when the disc 19 is broken. A frangible sleeve 20 is arranged to be broken by the plunger 13 when it is operated, to indicate that the extinguisher has been used.
Patent GB-850897-A (GB)
Title: Pneumatic suspension for vehicles
IPC: B62D13/00
Filed: 1959-02-09
Abstract: 850,897. Steering vehicles. GOUIRAND, R. Feb. 9, 1959, No. 4407/59. Class 79(5). [Also in Group XXXII] The forward axle 6 of a tandem wheel assembly of a semi-trailer or truck is suspended by a pneumatic spring 10 (see Group XXXII) which permits limited movement of the axle 6 about a vertical axis. A socket 20 in a boss 19 rigid with the casing of the spring 10 provides a mounting for a pin 21 which is centred by the action of respective pairs of coil springs 28, 29 on either side of the vehicle. These springs are supplemented by pneumatic springs charged by a reservoir 134.
Patent GB-271142-A (GB)
Title: Improved circuit arrangements for selectors in automatic and semi-automatic telephone systems
IPC: H04Q3/00
Filed: 1926-02-16
Abstract: 271,142. Siemens Bros. & Co., Ltd., and Christian, D. A. Feb. 16, 1926. Automatic and semi-automatic exchange systems.-In a system in which the feeding bridges are at the connector, the back-bridge relay controls both the answering supervisory signal and the busy lamp-flash signal. Selection of wanted line. On seizure, the relays A, B energize in turn. A dialling relay C now energizes over its winding 1 and prepares the impulsing circuit [battery, C(2), VM, e<2>, c<3>, b<5>, a<1>]. When tens impulsing begins, the vertical off-normal contacts k (1, 2, 3) operate and the circuit of C (1) is broken. After impulsing, relay C de-energizes and relay E pulls up over k<3>, c<2>, w<1>, b<3>, completing a circuit at e<5> for C(1) which prepares the ' units ' impulsing circuit. Relay E locks up over k<3>, c<2>, e<1>, b<4>. The rotary off-normal contacts w (1, 2) operate and break the circuit of C (1). At the end of train, relays C and E release in turn. Ringing, connection and release. If the wanted line is free, relay H operates [earth, b<4>, e<1>, c', H (1), private wiper to battery] and locks up over its winding 2. Ringing current is fed over a circuit F (2), e<3>, b wire, back by a wire, and f<2>, and a ringing signal is sent back over the wire R S. When the subscriber answers, relay F operates, opening a short-circuit round its winding 1, which energizes and the called line is extended to relay D which operates its contacts d', d<2> to give the answering supervisory signal. When the calling subscriber hangs up, relays A, B. H, E, D relapse in turn and the release magnet M M is energized. Contact m m opens to prevent seizure of the switch before it returns to normal. If the called subscriber hangs up first, relay D relapses and a warning lamp C S H is lighted. Busy signal and release. If the line is busy, relay F operates [battery, F (1), e<4>, w<1>, b<3>, earth] disconnects the ringing circuits, and connects busy tone over wire B B to the a wire. When the battery is on the wire B B, relay D (2) operates and both the a and b wires are battery connected. Relay A relapses, but relay B is held over a circuit d<3>, f<6>, b', h<1>. When earth is connected to the wire B B, D relapses, and A re-energizes. The distant bridged relay is therefore flashed together with the lamp C S H, and, if an operator is calling, a supervisory lamp. Instead of using the test relay for disabling the reversing contacts of the backbridge relay, a discriminating relay may be used with contacts in the impulse relay circuit. According to the Provisional Specification, such a relay only operates when the wanted line is free; when busy condition is met, the earthconnected impulse relay coil is disconnected and batterv is connected to the a wire over a non- inductive resistance; modifications of the circuit shewn in Specification 233,288 are described in which a second winding on the relay C therein may be used as a discriminating relay.
Patent GB-1166687-A (GB)
Title: Apparatus and Process for the Production of Fibrous Materials
Inventor: VOLANS PETER
IPC: B26F3/02
Filed: 1967-01-30
Abstract: 1,166,687. Fibrous materials; yarns. MONSANTO CHEMICALS Ltd. 29 Dec., 1967 [30 Jan., 1967], No. 4486/67. Addition to 1,114,151. Headings D1R and D1W. A process for the production of fibrous material comprises passing an orientated extruded foamed thermoplastic material through successive pairs of rotatable opposed pressure rolls arranged with their axes substantially parallel and transverse to the direction of orientation of the material, and reciprocating at least one pair of rolls relative to an adjacent pair in a direction having a component parallel to the roll axes to bring about fibrillation of the orientated thermoplastic material. The fibrous assembly may be made into a non-woven fabric or into a yarn. The thermoplastic material may be polyamide, polyester, polyacrylic, vinylic, cellulosic, polyurethane or polyolefine.
Patent GB-300440-A (GB)
Title: Improvements in or relating to bodies and frames of motor road vehicles
IPC: B62D33/00
Filed: 1928-02-13
Abstract: 300,440. Martin, J. V. Feb. 13, 1928. Bodies.-In place of the usual frame, a boxlike sub-body 4 integral with an upper body 3 is used. A cab 2 for the driver is provided at the front of the vehicle at one side.
Patent GB-748995-A (GB)
Title: Improvements in and relating to process of tanning
IPC: C14C3/08
Filed: 1952-02-21
Abstract: Polyalkyl ether derivatives of high molecular organic sulphonamides, which are used as tanning agents, are prepared by the action of alkylene oxides, particularly ethylene oxide, on the sulphonamides. The sulphonamides can be aliphatic, cycloaliphatic or aromatic, the hydrocarbon radical containing at least six carbons, which may be substituted, e.g. by hydroxyl or sulphonamide groups, or interrupted by oxygen, nitrogen or sulphur, or by oxygen-, nitrogen- or sulphur-containing groups of atoms.  Specified sulphonamides are dodecyl-, octadecyl-, octadecenyl-, alkylcyclohexyl-, naphthalenemono-, naphthalenepoly-, and alkylbenzene-sulphonamides. Mixtures of high molecular aliphatic sulphonamides, prepared by treatment of C12-C22 hydrocarbon mixtures with sulphur dioxide and chlorine followed by amidation of the sulphochlorides produced, are also mentioned.  Examples of the polyether addition products are those from (1) 8-12 molecules of ethylene oxide and dodecylbenzene or hexadecylbenzene sulphonamide; (2) 6-18 molecules of ethylene oxide and naphthalene di- or tri-sulphonamides or alkylated naphthalene sulphonamides; (3) 6-12 molecules of propylene oxide and dodecyl- or octadecenyl sulphonamide.
Patent GB-1189511-A (GB)
Title: Method of producing Substituted Aluminium Hydrides
Inventor: CASENSKY BOHUSLAV
IPC: C07F5/06
Filed: 1967-01-31
Abstract: 1,189,511. Substituted aluminium hydrides, their preparation and use. CESKOSLOVENSKA AKADEMIE VED. 31 Jan., 1967 [31 Jan., 1966; 22 March, 1966], No. 4563/67. Heading C2C. [Also in Divisions C1, C3 and C5] Substituted sodium aluminium hydrides of the formula wherein x is an integer from 1 to 3 and R is an alkyl, aryl, aralkyl, tetrahydrofurfuryl, tetrahydropyranylmethyl, alkoxyalkyl, aryloxyalkyl, polyalkoxyalkyl, tetrahydrofurfuryloxyalkyl, tetrahydropyranylmethoxyalkyl, tetrahydrofurfuryloxy-(polyalkoxy)alkyl or N,N-diorgano substituted alkylamino group, may be obtained by reacting sodium or sodium hydride with aluminium, hydrogen and at least one compound selected from ROH, NaOR, Al(OR) 3 , NaAl(OR) 4  and NaAlH(OR) 3  under anhydrous conditions and in the presence of hydrogen under superatmospheric pressure; the substituted sodium aluminium hydride so produced may be used as the reaction medium for preparing non- substituted sodium aluminium hydrides of the formulae NaAlH 4  and Na 3 AlH 6  by the addition of further amounts of sodium and aluminium. The reaction is suitably carried out in an aprotic solvent at a temperature of from 80-220 C., and, at a pressure of from 2 to 200 atmospheres. The radical -OR in the above formulµ may be the organic residue derived by splitting off hydrogen from compounds of the following types: (a) tetrahydrofurfuryl and tetrahydropyranyl alcohols; (b) ether alcohols formed, for example by alkylating one hydroxyl group, in diols; (c) polyether alcohols, e.g. those obtained by condensing tetrahydrofurfuryl or tetrahydropyranyl, alcohols with diols or by condensing ether alcohols with diols; or (d) amino alcohols. The substituted sodium aluminium hydrides obtained may be used to reduce organic compounds such as aldehydes, ketones, esters, carboxylic acids, halides of carboxylic acids, dialkyl amides, diaryl amides and nitro compounds, or to remove a halogen atom from a halide such as an organic or inorganic mono- or polyhalide.
Patent GB-470422-A (GB)
Title: Improvements in and relating to means for changing the magazines of typographical composing machines
IPC: B41B11/06
Filed: 1936-02-14
Abstract: 470,422. Type-bar-making machines. LINOTYPE & MACHINERY, Ltd., and SCOTT, R. H. Feb. 14, 1936, No. 4594. [Class 100 (iii)] Magazines.-Means for facilitating a change of magazine in machines having an adjustable magazine column comprise extensible arms mounted on the fixed frame to support, during removal, the magazine that is, for the time being, in the plane of the arms. A rail 1, parallel with the magazines, is secured along each inner side of the fixed frame, and a magazinesupporting arm 3 is mounted to slide on each rail by means of an offset grooved portion 4. The lower end of each arm 3 has an offset portion 5, formed in its upper surface with a groove 6, which is in alignment with a lug 7 on the side of the magazine. The groove terminates in a hook 8 to arrest the magazine and permit it to hang vertically. When the magazine is drawn forwards, the lugs 7 engage the grooves 6, and, on reaching the hooks 8, draw forwards the arms 3 until they are arrested by stops 2. In machines having split magazines, pivoted plates 12 are provided, which may be turned into position to support the short front section of a magazine until its lugs 7 can engage the arms 3.
Patent GB-916663-A (GB)
Title: Improvements in and relating to cigarettes
IPC: A24D1/12
Filed: 1959-02-10
Abstract: 916,663. Cigarettes. ROSENFELD, M. M., [trading as SIVA CO.]. Feb. 10, 1959 [Feb. 11, 1958], No. 4662/59. Class 130. A cigarette is provided with a numerical scale 16, Fig. 1, which indicates the declining efficiency of the tobacco content of the cigarette as a filtering agent upon smoking; the scale may be replaced by a coloured band 52, Fig. 3, the width of which is a function of the distant from the lit end 56. The point 100, Fig. 1, or 58, Fig. 3, indicates the point beyond which the cigarette should not be smoked.
Patent GB-227303-A (GB)
Title: Improvements in or relating to gramophone sound boxes
IPC: H04R7/00
Filed: 1924-02-23
Abstract: 227,303. Crosby, G. H., and Adams, C. J. Feb. 23, 1924. Tool-arm mountings.-In a gramophone sound-box having a speciallyconstructed sensitive diaphragm e. the stylus-bar mav be screwed rigidly at j to the sound-box casing, without the use of a spring. Specifications 22505/12, 2006/14, 7031/14, 134,588, 169,057; and 193,727, [Class 40 (iv), Telephones &c.], are referred to.
Patent GB-396817-A (GB)
Title: Improvements in and relating to thermionic electrometers
IPC: G01R19/00
Filed: 1932-02-17
Abstract: 396,817. Pressure meters ; potentiometers ; calibrating-instruments. MORTON, C., Dovedale, Villiers Avenue, Surbiton, Surrey. Feb. 17, 1932, No. 4727. [Class 37.] A null thermionic electrometerfor the measurement of small potential sources having high resistance, for example the pH values of solutions, has the potentiometer current, grid bias, anode voltage, filament current and counter anode continuous current derived from a common source in order to effect complete standardization of the instrument. The main circuit comprises a source of current 1, resistances 2, 3, the valve filament 4, resistances 6, 7, a potentiometer 8 and coarse and fine variable resistances 9, 10. A switch 12 short-circuits resistance 7 or connects a resistance 13 in parallel with the potentiometer 8. The potential to be measured is connected at 14, 15, the pole not connected directly to the grid being tapped on the potentiometer slide-wire ' 18 which has a resistance value equal to two sections of the potentiometer 8, the eight sections of which have equal resistance values. The anode is connected to the source 1 through variable resistances 20, 30, and a double-pole switch 21 is provided to connect the instrument 22 for a test, or for standardization with a standard cell 33. The standardization is effected by setting resistance 3 so that 0.1 ampere flows in the potentiometer 8, the milliammeter being set to zero by adjusting resistances 9, 10. The potentiometer 8 is then adjusted to its zero position with the terminals 14, 15 short-circuited and the instrument reading again brought to zero by adjustment at 29, 31. Thereafter the unknown E.M.F. is read off on the potentiometer 8 which may be calibrated to read pH values directly with compensation for temperature. When pH values are measured, the resistance 13 is paralleled with the potentiometer 8 and the apparatus re-standardized with reference to a solution of known pH value.
Patent GB-576953-A (GB)
Title: Improvements in or relating to the production of durable yeast preparations
IPC: C12N1/04
Filed: 1944-03-14
Abstract: A method of making a yeast preparation comprises propagating the yeast, incorporating living lactic acid bacteria and then treating to induce substantially maximum spore formation.  The order of the last two steps may be reversed.  In an example a sterile nutrient solution is inoculated with a yeast culture and after sufficient fermentation has occurred a lactic acid bacteria culture is added.  The yeast is separated, compressed and spread in thin layers and exposed to sterilized oxygen at 30-40 DEG C. at controlled humidity for 3-6 days after which the mass can be vacuum dried and pulverized.
Patent GB-864786-A (GB)
Title: Heterocyclic salts
Inventor: GREENHALGH NORMAN
IPC: C07D295/027
Filed: 1959-02-11
Abstract: The invention comprises sparingly water-soluble acid addition salts of piperazine with 2-hydroxy-3-naphthoic acid and with 1,11-methylene-bis-(2-hydroxy-3-naphthoic acid), the preparation thereof by interaction of piperazine or an acid addition salt thereof with the said acids or salts thereof, and pharmaceutical preparations containing the products (see Group VI).ALSO:Pharmaceutical compositions comprise, in admixture with a non-toxic diluent or carrier, a sparingly water-soluble salt of piperazine with 2 - hydroxy - 3 - naphthoic acid or 1,11-methylene - bis - (2 - hydroxy - 3 - naphthoic acid), or both these salts, with or without a further active ingredient, e.g. phenthiazine.  The compositions, which are useful in the treatment of intestinal nematodes, may be in the form of tablets, suspension, suppositories, salt-licks or foodstuff premixes.
Patent GB-890809-A (GB)
Title: Improvements relating to the admixture of liquids having different characteristics
Inventor: VEARS JAMES ALFRED
IPC: D06F34/08
Filed: 1959-02-11
Abstract: 890,809. Washing-machines. A.E.I.-HOTPOINT Ltd. Feb. 5, 1960 [Feb. 11, 1959], No. 4831/59. Class 138 (2). Liquids having different characteristics, e.g. cold and hot water, are fed successively to, e.g. a washing-machine, having valve means responsive to the operation of pressure-responsive electric switches, for disconnecting one liquid feed and connecting the next liquid feed. With a temperature selecting switch 13 in its " warm " position W, a cold water valve solenoid 14 is energized until a pressure-responsive switch 9 is operated to energize a hot water valve solenoid 12 through a second pressure-responsive switch 8. When switch 8 is operated the hot water supply is cut off and e.g. a sequence timer (not shown) is energized. With switch 13 in its " hot " position H, only hot water is supplied. Switches 8 and 9 are mechanically linked for simultaneous adjustment by water level selecting means 10, but they are also individually adjustable.
Patent GB-131018-A (GB)
Title: Improvements in or relating to High Frequency Electric Installations.
Inventor: BEAUVAIS GEORGES ARMAND
IPC: H03C1/22
Filed: 1918-03-20
Abstract: 131,018. Beauvais, G. A. Dec. 14, 1917, [Convention date]. Electric oscil ations, producing.-In a system for producing electric oscillations of the kind employing a three-electrode thermionic valve, a resistance shunted by a condenser is placed in the grid circuit of the valve, and the potential at the terminals of the resistance is varied in magnitude only by the action of a microphone or an independent oscillating circuit. In the arrangement shown in Fig.-1, the voltage at the terminals of a fixed resistance f connected in series with the coil d is varied, either directly or through an amplifier k, by means of a transformer j, j<1>. Blocking-condensers l<1>, l<2> are placed between the amplifier k and the resistance f. In the modification shown in Fig. 2, the resistance f is replaced by an auxiliary lamp m shunted by a condenser o. The grid circuit of the lamp m contains a potentiometer p and the secondary winding j<1> of a transformer j, j<1>. The filament b' of the lamp b and the plate m<3> of the auxiliary lamp m are variably connected to a battery e<1> or a potentiometer. In the modification shown in Fig. 3, a lamp amplifier q is arranged to operate in conjunction with the auxiliary lamp r. The plate q<3> of the lamp q is connected to the battery c<1> through a resistance t, and to the grid r<2> of the lamp r through a condenser u. The grid r<2> is connected to the filament r<1> through a resistance v. In the modification shown in Fig. 4, a periodic difference of potential, always of the same sign, is obtained across the condenser o by means of an auxiliary valve m the plate circuit of which contains an oscillating circuit w.
Patent GB-587158-A (GB)
Title: Improvements in three magnitude recorders
IPC: G01D15/06
Filed: 1944-03-16
Abstract: 587,158. Determining physical quantities. KEINATH, G. March 16, 1944, No. 4946. Convention date, Dec. 29, 1942. [Class 37] [Also in' Groups VI and XIX] In Fig. 5 the wall of a metal tube 590 is scanned by an electromagnet 573 and a record as shown in Fig. 7 is obtained. The diameter of each dot is proportional to the wall thickness at a point corresponding to the location of the dot. The tube is rotated in unison with the drum electrode 501 carrying the electro-responsive record sheet and the electromagnet and the electrode stylus 511 are coupled for movement along a rotating screw 515. The electromagnet forms one arm of a wheatstone bridge the unbalanced voltage of which is impressed on the stylus and drum. An amplifier 578 and interrupter 580 are arranged in the circuit. Adjustment of the voltage can be made by the variable inductance 574 forming one of the arms of the bridge.
Patent GB-1040904-A (GB)
Title: Improvements relating to trailer steering arrangements
Inventor: TOWNSEND DAVID JAMES
IPC: B62D13/04
Filed: 1963-02-07
Abstract: 1,040,904. Steering; castor wheels. AUTOSET (PRODUCTION) Ltd. Jan. 27, 1964 [Feb. 7, 1963], No. 4947/63. Headings B7D and B7H. A wheel unit comprising a pair of wheels mounted upon a swivel head 11 carried by bearings mounted in the vehicle by a collar 13, as described in Specification 1,040,903, is lockable in a fixed position by means of a detent 10 which may be urged into engagement with a socket 12 by a spring 17. A peg 14 seats in a groove 15 in the engaged position and may be re-seated on a shallow groove 18 in the detent guide 16 in the disengaged position. The wheel unit is also provided with a steering arm 20 by means of which it may be connected to a steering linkage, e.g. of the Ackermann type. Sockets may also be provided for engagement by crowbars for steering purposes. The units may be provided upon a trailer vehicle.
Patent GB-127305-A (GB)
Title: Improved Construction of Link for Ammunition Belts for Machine Guns.
Inventor: PRIDEAUX WILLIAM DE COURCY
IPC: F42B39/08
Filed: 1917-04-10
Abstract: 127,305. Prideaux, W. de C. April 10, 1917. Cartridge belts.-Relates to metal-link belts in which the links have two cartridge clips A, B, Fig. 2, spaced apart and connected to a central clip C by a bridge-piece D, the links being hinged together by the cartridge G, as shown in Fig. 3. According to the invention, one or more enlargements, projections, or corrugations E are provided on the central clip C to lift the bullet ends of the cartridges clear of the walls of the feed-block. The enlargements E ride on a track F at the bottom of the feed-block, as shown in Fig. 3.
Patent GB-1247236-A (GB)
Title: Improvements in and relating to apparatus for separating solids from liquids
Inventor: WORLIDGE RONALD FREDERICK
IPC: B01D21/18
Filed: 1969-01-30
Abstract: 1,247,236. Separating liquid coolant from swarf. EUROFLOW SYSTEMS Ltd. 28 Jan., 1970 [30 Jan., 1969], No. 5129/69. Heading B1D. Filtration apparatus for separating swarf from machine tool coolant comprises an inclined casing whose floor and possibly sides are perforate and which encloses an endless scraper conveyor consisting of blades 21 mounted between driven roller chains 6 which move swarf up the inclined floor to discharge opening 2a. The lower part of the casing floor may be semi-cylindrical or flat and made of perforated plate or wedgewire screen. Ramp 2 forming an extension of the floor may be perforate or partly so, in which case a baffle may be mounted below to convey filtered liquid down into a tank over which the apparatus is mounted. Coolant enters the apparatus through one or both side walls at 32. The conveyor runs parallel to the floor and is driven by electric motor 11. The blades 21 are spring loaded (Figs. 3, 4, not shown) to ride over solids too large to move. Filtering is assisted by an electric vibrator 34 acting on the casing, which is pivoted at 32a to enable inspection of the undersurface, normally resting on rubber bushes 33. A pump may pass filtered liquid from the tank to a second filter. The blades 21 are formed and hardened to shear off pieces of swarf which stick in the perforations.
Patent GB-608278-A (GB)
Title: Improvements in and relating to cinematograph projectors
IPC: G03B1/38
Filed: 1946-02-19
Abstract: 608,278. Kinematograph projectors. PACHT, F. (Nebel, M. E.). Feb. 19, 1946, Nos. 5216 and 26016. [Class 97 (i)] Means are provided for producing a slow interrupted longitudinal movement of the film together with a reciprocating interrupted transverse movement of the film. The two movements take place simultaneously so that each section of the film is scanned transversely a number of times during its longitudinal passage past the gate. As shown, a drive from the handle 21 is transmitted through gearing 22 to the striker pin 11 of a Maltese cross 10 by which a cam 8 is rotated intermittently. This cam is an eccentrically mounted pentagon by which a frame 3 is moved up and down in steps. The film is drawn horizontally by a sprocket 24 connected to the shaft 27 by a pin- and-slot connection to allow vertical movement of the frame 3. This shaft is driven by worm and worm-wheel 28, 29 from shaft 9, but may be disengaged and rotated manually for film threading by lifting the knob 27b against a spring 27c and turning. The projection lens 5 is carried on the casing 18. A condenser lens and framing aperture are carried in a housing. 6a with a vertical screw adjustment by knob 6d.