baber/WOPTO huggingface dataset:
Patent GB-1503566-A (GB)
Title: Voltage amplifier
IPC: H03F3/393
Filed: 1975-02-24
Abstract: 1503566 Amplifiers; analogue to digital converter COMMISSARIAT A L'ENERGIE ATOMIQUE 24 Feb 1975 [1 March 1974] 7630/75 Headings H3T and H3H A voltage amplifier comprises an input circuit comprising two inputs for applying input signals, a circuit having two stable or quasi-stable states and an unstable state and means for holding the circuit in its unstable state, the arrangement being such that when the holding means is released, the circuit assumes one or other of its stable or quasi-stable states according as the difference between the inputs is above or below the noise level at the input and in which means are provided for periodically operating and releasing the holding device and each time, depending upon the stable state assumed, adding or subtracting a predetermined amount to or from a stored signal constituting the amplified output. As described, Fig. 3, a bi-stable circuit comprising cross coupled amplifiers A 1 , A 2  such as MOSFET inverters is held in an unstable state with both outputs the same by a switch K 3 . On release of K 3  and closure of K 1  and K 2 , the bi-stable circuit switches to one state or the other depending on the sign of the input signal relative to the circuit noise level. The outputs of amplifiers A 1 , A 2  close switches K 4 , K 5  to connect the smoothing capacitors C 1 , C 2  to either + Vm or - Vm. Means may be provided for compensating offset voltage, Figs. 4 and 8 (not shown) and errors in the voltages + Vm and -Vm, Fig. 5 (not shown). A digital read out corresponding to the input signal may be provided by a counter 10, Fig. 14, supplied with pulses from the generator H which controls the cycling of switches K 1 , K 2 , K 3  and made to count up or down according to whether K 4  or K 5  is closed.
Patent GB-1414741-A (GB)
Title: Puppets
IPC: F16C11/04
Filed: 1973-02-16
Abstract: 1414741 Universal joints STOPFRAME ANIMATIONS LTD 5 Feb 1974 [16 Feb 1973] 7634/73 Heading E2F [Also in Division G5] A universal joint for the limbs of a model figure (Figs. 1 and 2, not shown) comprises two plates 20 each formed with a hole or recess 21 adjacent each end to engage balls 22 on the ends of the limbs, the plates being connected together by a screw 23.
Patent GB-929902-A (GB)
Title: Improvements in or relating to a synchronous oscillating compressor actuated by an alternating magnetic field
IPC: H02K33/06
Filed: 1961-03-02
Abstract: 929,902. Reciprocating motors. USINES CHAUSSON S.A. DES. March 2, 1961 [March 3, 1960], No. 7644/61. Class 35. The reciprocating soft iron armature 17 of an electromagnetic pump unit operated by the effect of flux 20 produced by A.C. energized coils 8, 9 on the flux from radially magnetized permanent magnets 10, is a tube having coaxial longitudinally extending rods 23, 24 integral with core 22. Radial slots cut in the outer periphery of armature 17 canalize the permanent magnet flux and reduce iron losses and springs 29, 30 placed around the rods allow the oscillation of the armature to be maintained. Low-pressure fluid in chamber 1 is compressed in cylinder 36 by piston 37 integral with rod 23 and exhausts into pressure chamber 39 through non-return valve 42 when the armature moves in direction F1. Suction from chamber 1 through tubes into cylinder 36 via valve 38 takes place when the armature moves in the opposite direction. Lubricating oil 45 may be pumped by the action of rod 24 in boss 32 through rods 24, 23 into annular duct 44 to lubricate the piston or the compressor may be double acting by having a first stage replacing boss 32. Sintered bronze impregnated with a self-lubricating plastic material e.g. P.T.F.E. may be used for the cylinder walls.
Patent GB-766520-A (GB)
Title: Therapeutic compositions containing neomycin and oxytetracycline
IPC: A61K31/65
Filed: 1955-03-16
Abstract: A therapeutic composition particularly effective against E coli contains as the principal active ingredients oxytetracycline and neomycin.  The neomycin may be present in 10 to 90 per cent by weight and the oxytetracycline 90 to 10 per cent by weight.  A proportion of 5 parts of neomycin to 1 part of oxytetracycline is particularly effective.  Oxytetracycline may be in any therapeutically effective form, e.g. hydrochloride, sulphate, sodium salt and acetate. Neomycin is in the form of the base or a non-toxic salt such as the sulphate or hydrochloride.  The composition may be in the form of capsules, tablets, solutions or suspensions.  The capsule or tablet may be enteric coated.  An example relates to tablets containing oxytetracycline hydrochloride and neomycin hydrochloride with magnesium trisilicate binder.  For powders, starch may be used as a diluent.
Patent GB-974205-A (GB)
Title: Resonator filtering system
Inventor: TILSTON WILLIAM VICTOR
IPC: H01P1/213
Filed: 1963-02-26
Abstract: 974,205. R.F. couplings. SINCLAIR RADIO LABORATORIES Ltd. Feb. 26, 1963, No. 7670/63. Heading H4A. [Also in Division H1] A filtering arrangement for, e.g. coupling a number of transmitters T utilizing different frequency bands to a common aerial A, comprises a number of cascaded units 10 each including a resonator F which in conjunction with a matching section L is effective to isolate the corresponding transmitter T from all the other transmitters, and a resonator W which in conjunction with a matching section U is effective to block signals from all the other transmitters. The matching sections L, U are all equal in length and this length is equal to a quarter wavelength at the average frequency of all the transmitters T. One end of each matching section L, U is connected to a corresponding resonator F, W and the other to a common junction J. The sections 10 are coupled together by lines Y of any convenient length. Fig. 3 shows a convenient physical arrangement of the resonators which are all identical in size but differently tuned. Threeacscaded resonators are used instead of a single resonator F to obtain better isolation. In Fig. 2 the cascaded sections 10. are shown coupled to transmitters T1, T2, T3, T4 arranged in the manner described in Specification 974,206.
Patent GB-430566-A (GB)
Title: Improvements in dish washing machines
IPC: A47L15/28
Filed: 1935-03-12
Abstract: 430,566. Dish - washing machines. ERNST, C., 20, Preiergasse, Z³rich, Switzerland. March 12, 1935, No. 7673. Convention date, March 12, 1934. [Class 138 (i)] A dish-washing machine comprises a stationary dish container having a loose bottom acting in the manner of a valve, and a vertically reciprocating water tank surrounding the dish container. As the water tank 16 moves upward, the plate 12 is raised to close the bottom of the dish container, into which the water rushes by overflow at the top and through holes 20 ; the water flows from the bottom of the dish container back into the tank when the latter is lowered. The dish container has a perforated false bottom 14 on which crockery to be washed is placed, and is provided with angle pieces 13 on which the plate 12 rests in its lowermost position. The dish container is supported by two arms 10 detachably mounted in the upper forked ends of vertical rods 8, which serve as guides for the tank. The water tank is pivotally attached to sleeves 18, which are slidable on the rods 8 and coact with damping springs 15, and is reciprocated vertically by means of a spindle 3, sliding in the central column of a spider-legged stand 2 and operated by a foot pedal, as shown, or by hand or power means.
Patent GB-1379168-A (GB)
Title: Use of heat exchanging furnaces in the recovery of heat in waste gases
IPC: F27D17/00
Filed: 1972-02-18
Abstract: 1379168 Preventing and removing deposits BABCOCK & WILCOX Ltd 18 Feb 1972 7681/72 Heading F4B Gaseous material is continuously added to the waste gases containing combustible dust coming from a metallugical furnace so that the gases passing to heat exchange apparatus contain a lower proportion of oxygen then without the addition, thus reducing the deposit of oxides or sulphates. The added gases may be recirculated gas if combustion takes place in the heat exchanger; or nitrogen may be discharged over the heat exchange surfaces of a waste heat boiler, Fig. 3, to reduce the oxygen content of the gases and blow away loose deposits.
Patent GB-472121-A (GB)
Title: Improvements in chain driving mechanism for cycles and like vehicles
IPC: B62M1/00
Filed: 1936-03-16
Abstract: 472,121. Chain driving-mechanism for cycles &c. COATES, J. A., and PUNSHON, T. March 16, 1936, No. 7797. [Class 136 (ii)] Chain-driving-mechanism for cycles and like vehicles comprises a circular sprocket-wheel A attached to the driving-crank K (e.g. a pedal crank), and an oval or eccentrically-mounted sprocket-wheel B, which is so arranged and proportioned that the chain C is tensioned during the operative part of the stroke of the crank and is slackened while the crank is passing the dead-centre positions, a chainlifting jockey-wheel J being provided to prevent disengagement of the chain when slack. In a modification, the rear sprocketwheel is concentric, and the chain passes over an intermediate oval or eccentric sprocketwheel mounted on the cycle frame above the sprocket-wheel A.
Patent GB-1464811-A (GB)
Title: Monorail pipeline support apparatus for a slurry transportation system
IPC: B65G53/30
Filed: 1975-02-25
Abstract: 1464811 Hydraulic conveyors CONTINENTAL OIL CO 25 Feb 1975 [18 April 1974] 7822/75 Heading FIR [Also in Division F2] In a mine slurry conveying system the water and slurry hoses 24, 23 are supported by a monorail from the mine roof. A loop in the hoses to accommodate movement of the slurry hopper 14  is formed by transferring the hose supports from one mono-rail 25 to a parallel mono-rail 26 by means of a movable conveyor 33 powered by a vehicle 34, the conveyor comprises sections 63, 64 pivoted together and comprising side frames 55 and bottom member 56 carrying side rollers 57 and bottom rollers 59, section 64 also carries entry/  exit support rollers 60. The hoses are normally supported from the rail by hooks as shown in Fig. 7 from which they are detached and attached as they enter and leave the conveyor 33. The hose supports include a wheel 95 which is engageable with a thrust plate 88 where the hoses have to make a turn as shown in Fig. 6.
Patent GB-345477-A (GB)
Title: Improvements relating to containers for gramophone needles
IPC: G11B3/54
Filed: 1930-03-11
Abstract: 345,477. Boxe or containers for gramophone needles. BRITISH NEEDLE CO., Ltd. and KEESEY, E. W., Argosy Works, Victoria Street, Redditch, Worcestershire. March 11, 1930, No. 7868. [Class 18.] A container of pyramidal, conical, or like tapering form, for gramophone needles, has a delivery aperture g in its apex, a partition dividing the interior into compartments d, e for unused and used needles respectively, and an aperture f in the sides or base for inserting used needles into the compartment e. The partition c may be horizontal, vertical, or oblique. When the container is inverted and shaken to expel a needle, jamming of the needles in the compartment d is prevented by vertical partitions i.
Patent GB-100738-A (GB)
IPC: C03C3/091
Filed: 1916-06-05
Abstract: 100,738. Corning Glass Works, (Assignees of Sullivan, E. C., and Taylor, W. C.). June 24, 191.5, [Convention date]. Drawings to Specification, Production of metal.-Baking dishes and other utensils which are subjected to great temperature changes are made of transparent glass. The vessels are made with the under surface of the bottom slightly concave, in order to ensure an even base, and the upper surface of the bottom is quite flat. A number of compositions for sodium boro-silicate glass suitable for the ware, and in which the percentage of silica is not less than 70 per cent. of the total and the percentage of boric oxide to sodium oxide is not less than two to one, are described. Alumina may be present in an amount not exceeding 3 per cent of the total. Compositions are given in which the sodium oxide is replaced by potassium oxide or lithia. Laboratory ware made from these glasses may be made thicker than usual, this giving them greater strength. These glasses have relatively high thermal conductivity and have a relatively low coefficient of expansion. They have also a high thermal coefficient of endurance and possess the property of flowing easily in the press at comparatively low temperatures.
Patent GB-762214-A (GB)
Title: Method for manufacturing hollow metal turbine blades
IPC: B23P15/02
Filed: 1954-03-18
Abstract: 762,214. Making hollow turbine blades. COMPTOIR INDUSTRIEL D'ETIRAGE ET PROFILAGE DE METAUX. March 18, 1954 [April 17, 1953], No. 7961/54. Classes 83 (2) and 83 (4). Extruding.-A method of making a hollow turbine blade comprises producing by hot extrusion a tubular blank 1, Fig. 1, preferably having a longitudinal solid fin 2, drawing the blank to make its peripheral length equal to that of the desired blade, cutting the blank into elements each of a length slightly longer than the blade, reaming the elements internally to provide the desired wall thickness of the blade, pressing each element to the desired blade profile, Fig. 5, and then cutting it to the required length. Preferably the pressing is carried out in two stages. The blank or elements may be annealed and subsequently pickled between any two successive steps, and the finished blade is heat treated. Blade twist may be imparted during the pressing operations. Glass may be used as a lubricant during the extrusion operation. Specification 607,285 is referred to.
Patent GB-249861-A (GB)
Title: Improvements in or relating to means for demonstrating dust aspirators
IPC: G09F19/10
Filed: 1926-03-23
Abstract: 249,861. Siemens - Schuckertwerke Ges. March 24, 1925, [Convention date]. Forms and models with characteristic movements.-The action of vacuum cleaning apparatus is demonstrated by a dust-covered backing kept in continuous relative motion to a suction nozzle. In one form the backing comprises an endless belt 3 driven by a motor 4 so as to pass under the nozzle 1. A container 7 may be provided to apply sand, sawdust, &c. to the belt.
Patent GB-516668-A (GB)
Title: Improvements in charging four-stroke-cycle internal-combustion engines
IPC: F01L5/10
Filed: 1939-01-20
Abstract: 516,668. Charging under pressure ; valves. BURT, P. Jan. 20, 1939, No. 8123/38. [Classes 7 (ii) and 7 (vi)] Compressed air for pressure-charging and for scavenging is supplied on both compression and exhaust strokes, in addition to that admitted through the main induction passage 5a. A reciprocating and oscillatory sleeve-valve 3 controls exhaust and main-inlet ports 5b, 5a, at one end of the cylinder, and auxiliary charging and scavenging'ports, 6a, 6b, at the other end.
Patent GB-1356489-A (GB)
Title: Compositions for and method of combating coccidiosis and mareks  disease in poultry
IPC: A61K/
Filed: 1972-02-22
Abstract: 1356489 Coccidiostatic &c compositions MERCK & CO INC 22 Feb 1972 [23 Feb 1971] 8129/72 Addition to 1293691 Heading A5B Coccidiosis and Marek's disease in poultry are combated by administering to the poultry in their feed ration or drinking water pamino-p'-ureidodiphenyl sulphone and 1-300 parts by weight thereof of a coocidiostat. The latter may be, for example, amprolium, ethopabate, sulphaquinoxaline, pyrimethamine, nicarbazin, alklomide, sulphanitran, clopidol, robenzidine, nitromide, zoalene, roxarsone, arsanilic acid, buquinolate, decoquinate, monensin, nitrophenide, furazolidone, nihydrazone, nitrofurazone, dimethalium or clothiamine.
Patent GB-850793-A (GB)
Title: Improvements in and relating to dynamo-electric machines
Inventor: ROGERS REGINALD
IPC: H02K1/16
Filed: 1956-03-15
Abstract: 850,793. Dynamo-electric machines. BRITISH THOMSON-HOUSTON CO. Ltd. Feb. 27, 1957 [March 15, 1956], No. 8136/56. Class 35. In a dynamo-electric machine, such as a fractional H.P. motor, comprising a stator and a rotor at least one of which, shown as the stator, carries a winding in a slotted magnetic core 1 having a similarly slotted end plate 6, teeth 9 defining the end plate slots each have a dimension axially of the machine which increases towards the free end of the tooth so as to form a guiding projection which directs into the adjacent core slot 4 wire not shown when it is wound to form the winding. The plate 6 has securing screw holes 7, may be of electrically insulating material e.g. nylon, and may have extensions not shown projecting into the core slots to form at least a part of the slot insulation. There may be two plates 6 but only one need have the guiding projections.
Patent GB-693038-A (GB)
Title: Improvements relating to hydraulic pit props
IPC: E21D15/59
Filed: 1950-03-31
Abstract: 693,038. Pit props. GEWERKSCHAFT EISENHUTTE WESTFALIA. March 31, 1950 [April 7, 1949; Oct. 24, 1949], No. 8196/50. Class 20(ii) [Also in Groups XXVIII and XXX] A hydraulic pit prop has a charging and discharging valve 23, Fig. 3, and an excess pressure valve 24, charging being effected through a hose 15 terminating in a connecting member 30 in the form of a lever which is coupled by means of a hook 31 to a handle 26 on the prop, so that pressure on the long tubular lever arm 32 forces the short arm end 35 and pressure pin 34 against the inlet opening of the valve 23 thereby conveying water through the arm 32 and outlet tube 33 into the prop without any screwing action being necessary. Discharge is effected simultaneously with the knocking down of the prop by means of a chain 51, Fig 4, linked to a lever 46 hooked on to the handle 26 and carrying a pressure pin 49 which, on pulling the chain, opens the valve 23. The valve 23, Fig. 3, comprises a sprung ball 27 closing the inlet which has externally a conically flared surface adapted to make a sealing fit with the short lever arm packing cone 35 surrounding the outlet tube 33 which terminates in the pressure pin 34. The connecting member 30 also contains a supply valve 37 which is opened by a striker pin 40 upon moving a handle grip 38 in the direction of the arrow 39. The length of the pin 34 is such that on setting a prop which requires to be shortened, a slight depression of the lever arm 32 causes the pin 34 to open the valve 23 before the packing cone 35 comes to rest on the flared inlet, thus releasing water from the prop. After positioning of the prop, further depression of the arm 32 and operation of the supply valve 37 then causes water to enter the prop when the connecting member 30 is unhooked and used for setting up another prop. Damage to the prop is prevented by the relief valve 24, the valve body 43 of which under the loading of a spring 44, closes a small opening 45 on the outside, the spring 44 being loaded to the maximum load of the prop. In a roof support system, Fig. 1, (not shown), the props 14 are arranged in "saw-tooth" formation and are set up in sequence by connecting them by means of the pressure hose 15 to coupling points 17 on piping 16 extending alongside the conveyer 12 and supplied by an electrically or compressed air operated pump 18.
Patent GB-582458-A (GB)
Title: Improvements in or relating to trouser-creasers
IPC: A47G25/66
Filed: 1944-05-02
Abstract: 582,458. Trouser creasers. COOPER, M. L. A. May 2, 1944, No. 8243. [Class 141] A trouser creaser comprises two crease-forming bars connected by at least two toggles, the outer ones being arranged to break away from each other, the expansion means comprising a cord passing through eyelets on the toggles. As shown, the crease-forming bars 10 have chamfered edges 11 and a longitudinal slot 12. Four extension toggles 13, 14, 15 and 16 have their outer ends pivotally held by rivets 18 in the slots 12, and they increase progressively in length from the shortest 13. They are designed to break outwardly by tension on the cord 19 which passes through tubular rivets 17 in the toggles 15, 14, 16, 13. In use, the creaser is inserted in the trouser leg and the cord pulled to expand the toggles, a half-hitch being formed in the notches 20 in the lever 13. Manual pressure may be applied to the outermost toggles, which project beyond the ends of the bars when the creaser is expanded. The creaser may be folded about a line in the plane of the two bars. In a modification, the toggles may be pivoted on to one face of the bars instead of in slots.
Patent GB-695740-A (GB)
Title: Improvements in or relating to furnace or like atmosphere indicators or recorders
Inventor: JESSOP GILBERT
IPC: G01N27/74
Filed: 1951-04-11
Abstract: <PICT:0695740/III/1> A gas analysing indicator or recorder for use, e.g. in measuring the oxygen and hydrogen contents of the atmosphere in an annealing furnace, is operated by a Wheatstone bridge circuit which comprises the thermal elements of a magnetic oxygen meter for two arms and the thermal elements of two katharometer chambers for the other two arms.  In the circuit shown, A, B are the two halves of the thermal element of a magnetic oxygen meter and C, D the two platinum wire elements of a katharometer measuring hydrogen; fixed resistances R, R1, S, S1 reduce the current supplied to the elements C, D, and fixed resistance T decreases the output from these elements.  The gas to be analysed passes in series over one of the katharometer elements and through the oxygen meter, by way of a filter chamber and flow gauge.  The bridge system gives a positive current proportional to oxygen concentration and a negative current proportional to hydrogen concentration, and the currents are indicated or recorded by means of a galvanometer or potentiometer.
Patent GB-570086-A (GB)
Title: Improvements in or relating to women's outer garments or dresses
IPC: A41D1/22
Filed: 1943-05-26
Abstract: 570,086. Wearing-apparel. HIRSCHFELD, R. May 26, 1943, No. 8405. Convention date, June 18, 1942. [Class 141] A unitary garment, such as a dress, which has a waist portion narrower than the bust and hip portions, has a placket opening 14, on one or both sides, in the waistband region extending above and below the waistline, closed by a pocket having sides 19, 20, the mouth of which is stitched to the opposed edges of the opening 14. The lower edge of the pocket extends substantially below the bottom of the placket opening, and the top edge may extend upwardly to the top of this opening, which may be just below the armpit. The placket opening may be made in a side seam 13 of the garment. Button, slide, or other fastenings may be employed to close the mouth of the pocket, while, however, leaving a portion through which the hand may be inserted.
Patent GB-129730-A (GB)
Title: Improvements in and relating to Internal Combustion Engines.
Inventor: JOUFFRET HENRI VICTOR JULES
IPC: F02B75/22
Filed: 1917-12-12
Abstract: 129,730. Jouffret, H. V. J. Sept. 14, 1917, [Convention date]. Shaft couplings, crank-shafts.-In engines having cylinder preferably disposed in the form of a V, a driven shaft c is located in the V in the same vertical plane as the crank-shaft, which is constructed in sections b, b<1> united by a sleeve d. The sleeve carries a pinion d‹ which engages a gear-wheel on the driven shaft c. The coned ends of the crank-shaft are keyed to the sleeve, a securing-bolt being provided at h.