baber/WOPTO huggingface dataset:
Patent GB-1177476-A (GB)
Title: Improvement in the production of Titanium Dioxide
IPC: C09C1/36
Filed: 1968-02-13
Abstract: 1,177,476. TiO2 Dispersion. FABRIQUES DE PRODUITS CHIMIQUES DE THANN ET DE MULHOUSE. 13 Feb., 1968 [17 Feb., 1967], No. 6944/68. Heading C1N. An aqueous dispersion of TiO2 is formed using an alkali metal salt and an organic amine as dispersing agents and is then centrifuged. The salt may be Na hexametaphosphate or tripolyphosphate. The amine may be triethanolamine or monoethanolamine or mixtures thereof. The amounts used may be 0À05-3% of the salt and 0À05-2% of the amine, on the wt. of TiO2. The centrifuged TiO2 may be treated with Al2(SO4)3, neutralized, washed, dried, and ground. The TiO2 may be obtained by hydrolysis of Ti sulphate followed by calcination at 750-1100 C. or by vapour phase oxidation of Ti tetrahalide, and may contain ZnO or Al2O3.
Patent GB-718731-A (GB)
Title: Improvements in or relating to tachometers
Inventor: JEFFERY GLYNN BENNETT
IPC: G01P3/495
Filed: 1952-03-18
Abstract: 718,731. Speedometers. SMITH & SONS (ENGLAND), Ltd., S. April 1. 1953 [March 18, 1952], No. 6954/52. Class 106 (3) A tachometer of the kind in which the torque developed upon relative rotation between adjacent coaxial members one 3, Fig. 1, of which is permanently magnetized while the other 4 is substantially non-magnetic and of high electrical conductivity is utilized to give an indication of the rate of the relative rotation is characterized by a permanently magnetized member 3 of circular disc form, magnetized with at least one pair of symmetrically distributed poles around its periphery, and a shunt member 6, Figs. I and 2, located in contact with said permanently magnetized member to provide a shunt path for the magnetic flux produced by said permanently magnetized member. The shunt member 6 is in the form of an annulus with symmetrically distributed diametral bars 7, 8 equal in number to the maximum number of pairs of poles and is formed from a ferromagnetic material whose permeability decreases with increasing temperature whereby compensation for the effects of varying temperature upon the indications given by the tachometer is obtained. The disc member 3 is carried by an input shaft 2 mounted in a die-cast case 1, and co-operates with an aluminium drag cup 4 carried by a shaft 5 having a pointer, not shown, and restrained from movement by a hairspring. A soft iron member 9 forms a return path for the flux.
Patent GB-389983-A (GB)
Title: Improvements in or relating to fuel pumps for the injection of fuel into internal combustion engines
IPC: F02M59/28
Filed: 1932-03-09
Abstract: 389,983. Fuel-injection pumps. EVANS, A. F., 2, Castleton Mansions, Castelnau, Barnes, London. March 9, 1932, No. 7050. [Class 102 (i).] In a fuel-injection pump of the type described in Specification 298,257, [Class 102 (i), Pumps &c.], in which a cylinder 5 and plunger 6 reciprocate oppositely and the discharge is effected through a fixed head 9, while a sleeve 12 controls relief ports 14, the sleeves 12 of two or more pump units are adjusted simultaneously by means of pinions 16 on a spindle 17 extending through stuffing-boxes 34 in the suction chamber 3 and operated by an arm 37. The pinions engage teeth on the sleeves, the teeth preferably extending the full length of each sleeve to permit ready removal.. In order to permit individual adjustment of each pump unit the pinions are adjustably secured on the spindle 17, each pinion having an extension 18 formed with teeth gearing with an adjusting screw 23 in a split sleeve 19, which is secured to the spindle by a key 20 and clamping screws 21. In order to prevent chatter the sleeves are acted on by springs 27. The torque of the springs 27 is opposed by a helical spring 31, one end of which is secured to a collar 30 on the spindle and the other to a casing 32 which is split and clamped to one stuffing-box 34 by a screw 35. An arm 38 on the spindle engages a stop screw 39 in a casing 40, which is clamped to the other stuffing-box.
Patent GB-1179476-A (GB)
Title: Pressure Sensitive Adhesive Tapes
IPC: C09J7/38
Filed: 1967-02-14
Abstract: 1,179,476. Adhesive tape. SCROLL MFG. CO. Ltd. 14 Feb., 1967 [18 Feb., 1966], No. 7070/67. Heading B2E. A pressure sensitive adhesive tape comprises a flexible steel tape having directly bonded thereto without the interposition of a primer, a pressure sensitive adhesive mass comprising a block copolymer of general formula A-B-A wherein each A is a non-elastic polymer of styrene having an average molecular weight between 5,000 and 125,000, and B is an elastomeric polymer of butadiene having an average molecular weight of between 15,000 and 215,000, the tape with the adhesive mass in the uncured form evidencing an adhesive power of up to 160 ounces per inch and negligible creep or sheer resistance under load at temperatures under 150F. The content of A in the copolymer may be less than 80% by wt. The copolymer may be cured sufficiently to retain its adhesion and creep resistance properties up to a temperature of about 300F. The copolymer may be cured with an alkyl phenol disulphide or a phenolic resin curing system. The adhesive mass may contain from 100 to 350 parts by wt. of a tackifying resin per 100 parts by wt. of the copolymer. The steel tape may have a thickness of not more than 10 mils. The adhesive mass may contain an antioxidant.
Patent GB-705251-A (GB)
Title: Improvements in or relating to the manufacture of esters of benzyl phenoxy acetic acid
Inventor: OCKRENT CHARLES
IPC: C07C69/712
Filed: 1950-03-22
Abstract: The invention comprises esters of a benzylphenoxyacetic acid of the general formula <FORM:0705251/IV(b)/1> wherein R, R1 and R2 each represent a hydrogen or chlorine atom or a methyl or ethyl group with a monohydric alcohol containing up to 8 carbon atoms.  The esters may be formed by reacting the acid with an alcohol, e.g. in the presence of hydrochloric or sulphuric acids, or by reaction with diazomethane. In examples (1) methyl 2-benzyl-4-chloro-phenoxy acetate is prepared by refluxing 2-benzyl-4-chlorophenoxy acetic acid (prepared as in example 1 of Specification 690,816) and methanol with a sulphuric acid catalyst; (2) n-propyl 2-benzyl-4-chloro-phenoxy acetate and (3) methyl 2-benzyl-4-chloro-3:5-dimethyl phenoxy acetate are prepared similarly.
Patent GB-783903-A (GB)
Title: Improvements in or relating to trolley buses
IPC: B60K1/00
Filed: 1955-03-11
Abstract: 783,903. Electrically propelled vehicles. ZAHNRADFABRIK FRIEDRICHSHAFEN AKT.-GES. March 11, 1955 [April 3, 1954], No. 7216/55. Classes 79(2), 79(3) and 79(5) In a driving arrangement for a pump in trolley buses, particularly a pressure oil pump for hydraulic steering aids in such buses, the pump is driven either from the transmission of the trolley bus or by an independent electric drive, the two drives being operatively interconnected by a freewheel clutch in such a manner that the pump drive from the transmission can be overriden by the independent electric drive. In the embodiment of Fig. 1 the main electric driving motor 4 drives the rear wheels 1 of the trolley bus and is coupled through the freewheel 5 to an electric motor 6 which drives the gear type pump 7 for the hydraulic steering gear 3. A switch 8 in the circuit of the motor 6 is operable by centrifugal means 22 driven by the main motor 4. When the speed of the motor 4 is low the switch 8 is closed and the motor 6 drives the pump and when the speed of the motor 4 is high the motor 6 is de-energized and the pump is driven from the motor 4 through the freewheel 5. In the embodiment of Fig. 2, the motor 6 is replaced by a dynamo 11. At high speeds of the motor 4 the dynamo is driven through the freewheel 5 and charges a battery but at low speeds of the motor 4 the battery drives the dynamo as a motor. Switching means are provided for breaking the battery circuit when the vehicle is at rest, the means being actuated together with a main switch 10 for the current supply to the vehicle, and the battery circuit is further interrupted when a door of the vehicle is opened, all as described with reference to Fig. 3 (not shown).
Patent GB-938080-A (GB)
Title: Preparation of 2-amino-5-nitrothiazole
IPC: C07D277/58
Filed: 1960-03-01
Abstract: 2-Amino-5-nitrothiazole is prepared by treating the nitrate salt of 2-aminothiazole with concentrated sulphuric acid at a temperature of 50 to 95 DEG C.  The 2-aminothiazole nitrate salt may be obtained by treating an aqueous solution of 2-aminothiazole with nitric acid.
Patent GB-936420-A (GB)
Title: Improvements relating to partitions for buildings
Inventor: PRENTICE EDGAR CECIL
IPC: E04B2/76
Filed: 1961-02-28
Abstract: 936,420. Demountable partitions. EXPANDED METAL CO. Ltd. Feb. 13, 1962 [Feb. 28, 1961], No. 7312/61. Class 20 (4). A partition which can be removed and reerected has a rigid framework formed by upright studs 2 of rolled sheet metal in two opposite faces of which are formed continuous longitudinal jaws 10, the studs being inter-connected by horizontal bridging members 3 which have end portions interlocking in slots 4 in the studs, and a series of panels 7 fixed to the studs by T-shaped members 8 the webs 11 of which are releasably held in the jaws 10 of the studs and the flanges 12 of which engage over the edges of the panels so that these are clamped between the flanges and the studs. The lower ends of the studs 2 engage between upturned side walls of a channel fixed to or resting on the floor, and the upper ends of the studs similarly engage a similar capping channel 5, Fig. 2, which rests within a larger channel 6. The upper edges of the panels are located between the side walls of the channels 5, 6. Specification 902,993 is referred to.
Patent GB-571936-A (GB)
Title: Improvements in or relating to silencers for the exhaust gases of internal combustion engines
IPC: F01N13/18
Filed: 1944-04-21
Abstract: 571,936. Exhaust-silencers. CROLT ENGINEERING, Ltd., and HOLT, J. A. April 21, 1944, No. 7371. [Class 7 (ii)] An exhaust-silencer comprises a number of short tubes A arranged so that the end of one tube telescopes over the end of the next and baffles B which have flanges b held between swagings a<2> on the tubes A. After assembly, the outer end of one tube is spun so as to enter the groove formed by the swaging a<2> on the next tube and the flange and tubes are slightly rounded as shown in the Figure. End plates having inlet and outlet pipes are fixed in a similar manner and the whole assembly is enclosed in an outer cylindrical casing D.
Patent GB-893914-A (GB)
Title: Improvements in electron-beam stepping tubes and circuits therefor
IPC: H03K29/00
Filed: 1960-03-02
Abstract: 893,914. Counters. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 2, 1960 [March 5, 1959], No. 7401/60. Class 106 (1). [Also in Group XL (a)] In an electron beam stepping tube having an electron source, deflection electrodes 13, 14, a masking electrode 15, having apertures juxtaposed in the direction of deflection, and an anode 16, it being possible for a beam of electrons to be maintained in different positions by distribution of the current between the masking electrode and the anode, the electron source comprises two control electrodes 18, 19 and provides two electron beams each of which can be deflected, and each of which can be passed or suppressed by its associated control electrode independently of the other. The apertures in the masking electrode are provided in staggered position in two rows so that each row can be scanned by one electron beam. The grids may be made alternately positive and negative by connecting them to a bistable multivibrator. As shown, grid 18 is negative and the lower beam is suppressed while the upper beam impinges, through aperture 6, on anode 16 and is held in this position until a further pulse is supplied to the vibrator, whereupon the upper beam is suppressed and the lower beam impinges wholly upon mask 15. The consequent change in the deflecting field deflects the beam until it enters aperture 7 where it is held until a further pulse is supplied. When the beam reaches position 10 it is immediately restored to position 0 by means of the pulse from electrode 17. Instead of cathode 11 and screen 12, an electron source providing two beams of circular cross-section may be used.
Patent GB-843348-A (GB)
Title: Apparatus for electro-erosive working of metals
IPC: B23H1/02
Filed: 1957-03-06
Abstract: 843,348. Cutting by spark erosion. VYSKYMNY USTAV PRE MECHANIZACIU A AUTOMATIZACIU. March 6, 1957 [March 8, 1956], No. 7441/57. Class 83 (4). A spark erosion apparatus has its spark gap J connected in parallel with a condenser C fed through a half-wave rectifier D from an inductor alternator high-frequency generator A. The latter supplies its high-frequency current to a coil B. The rectifier may be a diode, semiconductor or mercury arc. The second half wave of the high-frequency current may feed a second erosion apparatus through a second half-wave rectifier.
Patent GB-767898-A (GB)
Title: Unitary plant for the biological purification of sewage
IPC: C02F3/28
Filed: 1955-03-15
Abstract: 767,898. Treating sewage; trickling filters. ETABLISSEMENTS LUCHAIRE. March 15, 1955 [May 19, 1954], No. 7496/55. Classes 46 and 111. Sewage enters at A a primary settling tank A<SP>1</SP>, floating impurities being retained in the centre of the tank by a partition C, and sludge passing through an outlet D into a digestor tank E having an agitator F for re-suspending floating sludge. Clarified supernatant flows over the top of a weir in the partition wall H into troughs J above a trickling filter T having a closed top and a downdraught-creating fan I. Air and gas emerge at M while liquid flows down a pipe N into a final settling tank O and is discharged at S.
Patent GB-609282-A (GB)
Title: Improvements in or relating to pressure-relief devices for fluids
IPC: F16K17/16
Filed: 1946-03-11
Abstract: 609,282. Pressure-relieving devices for fluids. MILNE, J. N., and ORTON, J. W. March 11, 1946, No. 7519. [Class 135] A device for relieving excess pressure in fluid containers comprises an easily ruptured disc 3 gripped between rings 2, 4, the support ring 2 being of hard or hardened metal and having a sharp shearing edge to the face making contact with the disc. Ring 2 may be ground on the face contacting the disc. The disc is preferably made of silver and is provided with a groove 8 engaging with a projection and recess in the rings to assist in preventing slipping of the disc. Ring 4 may be knurled or roughened. The rings and disc may be welded together. The assemblage is held in a flanged tube 1 by a nut 6, the nut and tube being formed with hexagonal openings for manipulation. Alternatively, the assemblage is held in the tube by folding over a part of the latter.
Patent GB-1477102-A (GB)
Title: Traffic simulator
IPC: H04M3/32
Filed: 1975-02-24
Abstract: 1477102 Automatic exchange systems COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 24 Feb 1975 [25 Feb 1974] 7656/75 Heading H4K A traffic simulator comprises a number of electronically controlled test modules each adapted to simulate a calling and a called subscriber and mode selection means for operating the modules either asynchronously with the modules establishing independent connection or synchronously with all units co-operating to set up a plurality of calls all of which are at any one time in the same phase of establishment. Thus in the synchronous mode each module awaits the completion of a particular call phase by every other module before advancing to the next phase. If due to a fault one module fails to complete a phase, that module is or if in the synchronous mode all modules are prevented from advancing. The exchange equipment giving rise to the fault is thus held, an alarm sounds and a lamp characteristic of the fault is lit. The lamp to be lit is determined by the phase reached and the response achieved within a phase. The phases specified include onhook, off-hook awaiting PAX or PBX dial tone, awaiting public exchange dial tone, awaiting international dial tone, await ring back, check charge rate pulses and await a tone simulating speech returned by the simulated called subscriber upon answer, and await call clearing. The figure shows the analog circuitry of a module. It includes calling line terminals A1, B1 and called line terminals A2, B2 for connection to an exchange network represented by E1, L and E2. The calling line simulation components comprise line resistances R1, R2, line loop relay contacts dr impulsing contacts n and a speech circuit simulator comprising a transformer T1 and a tone detector ED the output of which conveys only the cadence of a received tone, the particular tone being received at any time being determined by counting during the makes and breaks in the cadence signal. Relay RTA responds to meter pulses on metering wire TA repeating these to a duration monitoring counting circuit via its contacts rta. The called subscriber simulation circuit includes a ringing signal detector S, line looping contacts de and a transformer T2 via which a continuous answering tone from a generator G may be coupled to the line. During a fault test changeover contacts im may be operated manually to couple the generator G- directly to the calling subscriber simulator. To enable service quality (i.e. the ratio between the number of communications initiated to the number of blockages that result from defects) to be monitored each module is provided with an extra counter for each type of defect to be recorded.
Patent GB-453336-A (GB)
Title: Improvements in or relating to razors
IPC: B26B19/06
Filed: 1936-03-13
Abstract: 453,336. Hair-clippers. GRIVETTO, M., 17, Via Duchessa Jolanda, Turin, Italy. March 13, 1936, No. 7690. Convention date, March 19, 1935. [Class 131] In a multipletoothed hair clipper for use as a razor, the reciprocating blade 4 has teeth 5 the cutting edge 5<a> of which is bevelled to conform to the upper face of the fixed comb 6 which tapers to a fine edge 6<c> and co-acts with a presser member 7, which mav also be in the form of a comb, to provide a slit 9 in which the ends of the teeth 5 reciprocate to-and-fro. The reciprocating blade is driven by an eccentric on the shaft of a motor mounted in the handle.
Patent GB-251403-A (GB)
Title: Improvements in and relating to carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1925-03-23
Abstract: 251,403. Schwab, F. A., and Smith, R. March 23, 1925. Vaporizers, external; spray carburettors. - Light or heavy fuel is mixed with a small quantity of air and the rich mixture is passed through an exhaust-heated chamber to the main mixing- chamber where it is diluted with a controlled amount of air before passing to the cylinders. The fuels are in adjacent wells the flow to which from the tanks as well as the flow from which to the spraying orifice are controlled by a rotatable plug valve. A casing 10, Figs. 9 and 10, contains two wells 11 for the respective fuels, each well having a float-controlled needle valve 15 for controlling the flow of fuel thereto through fixed ducts 19, 13 to ducts 64 arranged at right-angles to one another in a rotatable plug valve 62, Fig. 5. Circumferential grooves 65, Fig. 5, in the valve register with outlet ports 61 from the wells 11, and from each groove a recess 66 leads axially to a duct 22, Figs. 8 and 9, controlled by a needle valve 64. The duct 22 discharges the fuel in use into a tubular part 41 to which a small quantity of air may be admitted under an adjustable sleeve 44. The needle valve is adjusted by a pin and slotted rod. The rich mixture passes by way of conduit 49 to a heater comprising a part 50, Figs. 6 and 7, held against the exhaust manifold 51 by a strap 51<1> so as to form a chamber 52 to which the rich mixture is conducted by an inlet 53, said mixture after being heated passing through outlet 54 and bv way of pipe 27 to the main mixing chamber 24, Fig. 8. This is fitted to the top of casing 10 and is provided with an automatic air valve 30 loaded by a spring adjustable by a bush 32, the opening of the valve being capable of being limited, or prevented entirely, by an arm 56 adjustable against a spring from outside. The usual throttle valve is provided at 37. The valve 62 being set for the appropriate fuel, the latter enters the well 11 through ducts 19, 64, 13 and returns through duct 61 to groove 65 whence it passes along recess 66 to duct 22 upon discharge from which it is mixed with air. A modified form of heater is described comprising a box with tortuous passages, located in the exhaust manifold and secured thereto by inlet and outlet pipes screwing into bosses in the box.
Patent GB-909651-A (GB)
Title: Improvements in or relating to compressed fluid actuated vibrators
IPC: B06B1/18
Filed: 1961-03-03
Abstract: 909,651. Vibratory machanism. FONTAINE, M. A. I. March 3, 1961 [March 10, 1960], No. 7824/61. Class 80 (4). In a rotary vibrator wherein an inner cylinder 2 is rolled around an outer cylinder 1, or vice versa, by compressed air or other fluid, one of the cylinders having a longitudinal slot housing a radially movable blade 9 dividing the space between the cylinders into two chambers 14, 15 communicating respectively with inlet and outlet passages 8, 12, the blade 9 rides on a loose intermediate cylinder 3 which limits the chamber size, and hence limits the fluid consumption, while allowing a large eccentricity between the cylinders 1, 2. As shown the cylinder 1 is fixed and has end abutments 4, 5 slidably engaged by the rolling cylinders 2, 3. Fluid is admitted through a duct 7 and radial bores 8 in the cylinder 1 and exhausted through openings 12 in the abutments 4, 5, the bores and openings being on opposite sides of the blade 9. In another arrangement the end abutments, fluid passages and radially movable blade are provided on the rotatable inner cylinder, the blade riding on the inner periphery of the intermediate cylinder. In a modification of this arrangement the inner cylinder is fixed and the end abutments thereon are radially extended to carry a fixed cylindrical shell surrounding the rolling outer cylinder.
Patent GB-792340-A (GB)
Title: Improvements in means for securing lamp globes
IPC: F21V17/16
Filed: 1956-03-13
Abstract: 792.340. Supporting lamp globes. BELMAG ZURICH BELEUCHTUNGS-U. METALLINDUSTRIE AKT.-GES. March 13, 1956 [May 25, 1955], No. 7840/56. Class 75(2) A lamp globe 3 in the form of a bowl completely covering the carrier 1 supported on a ceiling or wall and mounting an electric bulb holder is secured by means of a least two holding devices, one at least of which is a dead-centre device in the form of a cranked lever pivoted on the carrier 1, the arms of the lever being so arranged that when on one side of its dead centre with the globe 3 in position, one arm 9<SP>1</SP> sandwiches the internal flange 4 of the bowl 3 against the rim 2 of the carrier to hold the bowl firmly on the carrier and on pulling the bowl away from the carrier, the cranked lever is rocked past its dead centre, the other arm 9 then engaging the rim of the bowl until the first arm 9<SP>1</SP> lies completely within the bowl and releases this latter and is engaged by a stop. As shown, the cranked lever is pivoted by two journals 8 in flaps 7 formed from cut out parts in the side wall of the carrier to form a space which together with a space in the adjoining portion of the bottom of the carrier accommodate the lever. The arms 9, 9<SP>1</SP> are. at an angle of slightly less than 90 degrees to each other. An elongated slot 12 in the bottom of the carrier together with a slot 10 in the lever accommodates the spring 11 as the lever passes from locking extreme position to the release position in which latter position the arm 9<SP>1</SP> contacts the end of the slot in the cut out place in the marginal part of the bottom of the carrier. In an alternative construction one of the holding dead-centre devices may be replaced by a bow piece fixed to the carrier 1 and engaging under the marginal part 4 of the bowl, or a spring U-bolt may replace one of the holding dead centre devices.