baber/WOPTO huggingface dataset:
Patent GB-1513219-A (GB)
Title: Ionization-type fire and/or smoke sensors
IPC: G01N27/64
Filed: 1976-07-23
Abstract: 1513219 Ionization gas detector CERBERUS AG 23 July 1976 [25 July 1975]  30899/76 Heading G1N A fire or smoke sensing detector includes a sensing ionization chamber MK connected in series with a resistance in the form of an electrically saturated reference ionization chamber RK across a voltage supply with the electrical junction of the chambers connected to the gate of an F.E.T. of which the source voltage is temperature compensated, the lines U 1 , U 2  being connected to a central alarm station (not shown). As a result the threshold voltage of the FET is rendered independent of ambient temperature, within a given range of ambient temperatures. It is stated that if the ratio of the resistors R 1 , R 2  is selected in accordance with R 2/R1  = (#/α)-1 where # is the temperature coefficient of voltage of the ionization chamber and α is the temperature coefficient of base-emitter voltage of the transistor T1 then the detector is rendered substantially temperature independent. An additional resistor R3, e.g. of 20 kilohms control line and test terminal V 3  permit checking of the operability of the chamber. One of the resistors R 1 , R 2  may be a thermistor.
Patent GB-1181726-A (GB)
Title: Improvements in and relating to Brush Making Apparatus
Inventor: LEWIS JOHN CONNELL JR
IPC: A46D1/08
Filed: 1967-07-05
Abstract: 1,181,726. Brush-making apparatus. J. C. LEWIS, 5 July, 1967 [12 Sept., 1966], No. 30986/67. Heading A4K. In a method of making brushes, tufts of fibres are gathered, end-wise on, by thrusting picker tubes 17, 29 through holes 28, 28<SP>1</SP>, in stock box 25, and withdrawing them, filled with a charge of fibres 24. The fibres abut the closed ends of the tubes 17, 29, which are shaped to give the tufts the required configuration, thus obviating trimming after the stock has been filled. The stock box 25 is vibrated. On moving plate 32 upwardly, electrically heated mould 26 is brought to the level of picker unit 31, which is again thrust inwardly, so that the loading ends of the fibres enter heated cavities (34, 34<SP>1</SP>, Fig. 22, not shown) formed of polytetrafluoroethylene and maintained at a temperature above that of the melting point of the fibres. The fibre ends are held in the cavities sufficiently long for them to be fused together by lateral pressures, without melting. The tufts are then transferred, by two further indexing movements to the drilled stock 23, where their softened ends 18<SP>11</SP> are pressed into cavities 22 and conform to their shape. The fibres are of round, cruciform, star shaped or hollow cross-section and may be of polyamide or polyethylene or a co-polymer of polyethylene and polypropylene. Preferably, they are of isotactic polypropylene. Fibre tufts of different size, colour on fibre composition may readily be provided in the same brush.
Patent GB-280048-A (GB)
Title: Improvements in and connected with the headlights of vehicles
IPC: B60Q1/124
Filed: 1926-12-07
Abstract: 280,048. Gillies, J. H. Dec. 7, 1926. Vehicle lamps, directing. - Each headlight is mounted on a horizontal platform 24 secured to a spindle 22 inclined backwardly, preferably at an angle of about 15‹ to 17‹ from the vertical, in a housing 20 pivoted at 21 to a hollow standard 6 on the chassis 5, the spindles 22 being operated from the steering-gear to direct the lamps sideways and downwardly, and the housings 20 being adapted to be rocked about the pivots 21 by means of rods 29, 30 operable by the driver. Each spindle 22 carries a pulley 23, through two holes in which is threaded a cord 17, which is passed over guide-pulleys 17a and round a pulley 7 in the standard 6, the ends of the cord 17 being secured in a U-shaped plate 18, adjustable by a screw 19 to take up slack in the cord. The pulleys 7 are mounted on a common spindle 8 one end of which carries a pulley 9 driven by a cord 11 from a pulley 10 on the worm-wheel spindle 12 of the steering-gear. The pulley 9 is secured to a fixed bushing on the spindle 8 by a spring-pressed stud 14 passing through a cap 15 and a hole in the pulley 9 into a recess in the bushing. The stud 14 may be withdrawn from the recess to disconnect the lamps from the steering-gear and allow them to be turned to illuminate the vehicle. The spindle 8 is mounted in slots in the standards 6 to permit tilting of the housings 20 about the pivots 21, the housings being held normally against adjustable set-screws 25 by means of springs pressing on the spindle 8. The spindles 22 are bored longitudinally for lubrication purposes and are held in the normal position by a spring-pressed plate 41 engaging a flat thereon. The upper end of the spindle 22 may be bent back at an obtuse angle to carry the lamp platforms.
Patent GB-1358563-A (GB)
Title: Monostable multivibrators
IPC: H03K3/017
Filed: 1971-07-02
Abstract: 1358563 Multivabrator circuits HONEYWELL Inc 2 July 1971 [6 July 1970] 31058/71 Heading H3T In a monostable multivibrator of the type in which the mask-space ratio is maintained constant with changes in triggering frequency by regulating the supply to the timing resistor 29, the regulator comprises a differential integrator 45, 46 receiving a reference signal at its non-inverting input and, at its inverting input, a current which flows to the input only during one state of the multivibrator. As shown, the reference value is produced by a potentiometer 47, 48 and a temperature compensating diode 52. The other current flows via resistors 49 and 50, and diode 53 when the multivibrator is quiescent. When the latter is triggered the current is diverted through diode 54 and transistor 1. The circuit settles in a state in which the mean currents to the two sides of the integrator are equal. Accordingly, if resistor 50 is chosen such that the combined resistance of 49 and 50 is half the value of 48 the mask-to-space ratio is 50%
Patent GB-648593-A (GB)
Title: An improved rick lifter or load-transporting appliance for tractors
IPC: A01D87/08
Filed: 1948-12-02
Abstract: 648,593. Load-handling machines. CAMPBELL, J. CAMPBELL, J. A., (trading as CAMPBELL & SON, J.), and DICKIE & CO. (DROP FORGINGS), Ltd., J. Dec. 2, 1948, No. 31207. [Class 78 (iii)] A load-lifting attachment for a tractor having lifting links 20 operated by a power lift unit comprises a transverse member 10 to which are secured spaced tines 11, an upstanding member 12, and a pair of brackets 13, Fig. 1, or 19, Fig. 4, for detachable connection to the links 20, a tie-member being secured between the top of the upstanding member and the tractor so that the former may pivot towards the tractor but not away from the tractor unless the tie-member is released. In the form shown in Fig. 1 the upstanding member 12 consists of a U - section girder provided with a plurality of pins 15, extending between the limbs, to which a chain 14 may be hooked, the other end being secured to the tractor. Preferably the lifting links 20, Fig. 4, are pivoted further forward on the tractor than usual by means of a bracket 21 and the connecting member 23 from the power lift unit is extended by the link 25 and pivotally connected, together with the bracket 13 or 19 to the end of each link 20. The upstanding member of Fig. 4 comprises a pair of L-shaped lower arms 12a joined at their upper ends by a tube 12b to which an upper arm 12c is secured. The tiemember is a slotted arm 28 pivoted at 29 to a bracket on the tractor, the slot being closed at the outer end by a pin 31. The slot receives the end of arm 12c which has a pin 33 engaging one of the holes 18 to adjust the height of the tie-member. Alternatively the tie-member may be a chain 34, Fig. 4a, having a hook 35 engaging a shackle 36 pivoted by a bolt 37 to one of the holes 18.
Patent GB-1007369-A (GB)
Title: Electromagnetic relay
Inventor: SHILLING JACK
IPC: H01H50/24
Filed: 1963-08-08
Abstract: 1,007,369. Electromagnetic relays. ERICSSON TELEPHONES Ltd. May 22, 1964 [Aug. 8, 1963], No. 31255/63. Heading H2B. An electromagnetic relay comprises a U-shaped yoke 10, one limb of which forms the core 11 and terminates in an enlarged polepiece 12 about which a balanced, annular armature 16 is pivoted on pins 17 to cooperate with the polepiece 15 of the other limb. The armature 16 has a lip 18 which engages the polepiece 15 on energization of coil 14. Limb 13 is arcuate, embracing the coil. and lip 18 preferably eccentric.
Patent GB-1100364-A (GB)
Title: Improvements in and relating to a hand-held explosive working tool
IPC: B21D26/08
Filed: 1966-07-12
Abstract: 1,100,364. Welding by pressure; explosive forming. UNITED AIRCRAFT CORPORATION. 12 July, 1966 [22 July, 1965], No. 31355/66. Headings B3Q and B3R. A high explosive hand-held working tool comprises a housing, handle members for holding the housing in position, support means for a high explosive charge extending into an open ended explosion chamber in the housing and manually operable means for detonating the charge. The housing 4 is of inverted cup shape forming a combustion chamber 12 and has an end seal 16 which may be corrugated to mate with the work. The handles 6, 7 extend radially from the side of the housing and a charge support 8 is screwed into the upper closed end of the housing, an opening 31 in the housing being connected through the handle 7 with a source of vacuum. The lower end of the support 8 is provided with a sleeve 52 to receive the explosive charge 56, a spring 54 being arranged to bias the charge downwardly, and ignition wires 60, 62 extend up through the support and out of the top thereof to a control box 10 positioned around the housing from handle to handle. Firing triggers 100, 102 are provided on the box adjacent the handles. The explosive charge has a plastic jacket, a base charge, a primer charge, an ignition charge and a seal. In operation the tool is pressed on to the work so that the spring 54 pushes the charge against the work, a vacuum is created in the combustion chamber and both triggers are pulled to ignite the charge. The Specification refers to forming, impacting and penetratting materials and the welding of stainless steel plates is described.
Patent GB-482842-A (GB)
Title: Improvements in or relating to ambulances and other vehicles
IPC: A61G3/00
Filed: 1936-11-16
Abstract: 482,842. Ambulances. SPURLING, W. F. Nov. 16, 1936, No. 31370. [Class 108 (i)] In an ambulance the seat is provided with a flap on its front edge, which flap may be raised and positively secured in that position to afford increased accommodation for a stretcher. The front edge of a seat 3, which extends along the side of an ambulance or other vehicle, is provided with a hinged flap 4 to widen the seat to serve as a support for an additional stretcher. The flap 4 is provided with a number of support members 5, each having a notch 9 at its lower end adapted to be engaged by a bar 10 to lock the flap in its raised position.. The bar 10 which is preferably spring-pressed is provided with a number of notches 11 corresponding to the number of members 5 so that when the bar is moved longitudinally to bring the notch 11 into line with the member 5 the latter is freed and the flap is permitted to fall into its inoperative pendant position. A knob 13 is provided on the bar 10.
Patent GB-288666-A (GB)
Title: The manufacture of new vat dyestuffs and new intermediate products
IPC: C09B3/22
Filed: 1926-12-10
Abstract: 288,666. Carpmael, K., and Carpmael, K. S., (Representatives of Carpmael, W.), (I. G. Farbenindustrie Akt.-Ges.). Dec. 10, 1926. Benzobenzanthrone carboxylic acids are obtained by treating 1 : 1<1>-dinaphthyl-8 : 8<1>-dicarboxylic acid or its deriatives or nuclear substitution products with an acid condensing agent under moderate conditions until the reaction product is soluble in glacial acetic acid. By treating the benzobenzanthrone carboxylic acids with alkaline condensing agents, highly coloured products soluble in alkalies are obtained: these are probably of the violanthrone or isoviolanthrone type and are converted by treatment with acid condensing agents into new compounds, insoluble in alkalies, dyeing cotton from the vat in blue to grey shades fast to washing chlorine and light. The 1 : 1<1>-dinaphthyl-8 : 8<1>-dicarbaxylic acid and its nuclear substitution products used as starting materials may be obtained by saponifying the corresponding esters, or by substituting the acid itself directly. In examples (1) 1 : 1<1>-dinaphthyl- 8 : 8<1>-dicarboxylic acid is treated with anhydrous zinc chloride and glacial acetic acid or with sulphuric acid and the benzobenzanthrone carboxylic acid formed is separated by pouring into water; the mono- and di-brom derivatives (see Specification 286,957) and the monochlor derivative react in a similar manner, (2) the product obtained in Example 1 is heated with alcoholic caustic potash, or with caustic potash and pyridine, the reaction mass is dissolved in water and treated with air or other oxidizing agent to oxidize the leuco compound first formed, and the condensation product is then obtained as a blue powder by acidifying or salting out; other alkaline condensing agents, e.g. sodium anilide, sodamide, or sodium alcoholate may replace the caustic potash, and other solvents or diluents, e.g. aniline, dimethylaniline and naphthalene may be used, and (3) the product obtained in Example 2 is treated with concentrated sulphuric acid and the vat dyestuff formed isolated by diluting with water; when purified it forms a black-violet hydrosulphite vat, from which cotton is dyed the same shade, turning to greyish green blue when the dyed goods are allowed to drain or are soaped. The bromo- and chloro-substitution products yield similar dyestuffs.
Patent GB-297245-A (GB)
Title: Improvements in apparatus for delivering liquids in measured quantities by volume
IPC: B67D7/16
Filed: 1927-11-22
Abstract: 297,245. Moorhouse & Co., Ltd., S., and Moorhouse, A. H. Nov. 22, 1927. Fixed - chamber apparatus. - Relates to apparatus for delivering liquids in measured quantities by volume of the type comprising two measuring vessels a, b into which the fuel is pumped, an air pipe c connecting the tops of the vessels to allow the air displaced from the vessel being filled to expel the liquid from the other vessel, float valves d to close the connection when a predetermined level is reached and an overflow pipe e of small bore from each vessel. According to the invention each overflow pipe delivers liquid into a closed chamber f from the bottom of which it flows upwards through a dip-tube g into a glass vessel h which is vented and returns the overflow to the main tank.
Patent GB-510434-A (GB)
Title: Improvements in and relating to vibratory screens, sieves and riddles
IPC: B07B1/08
Filed: 1938-11-15
Abstract: 510,434. Sifting-apparatus. WATT, J. Nov. 15, 1938, No. 31420/37. [Class 117] The screening surface 1, Fig. 1, is in the form of a multi-sided, inverted truncated pyramid, and is actuated by a unit 2 comprising two out of balance rotors 23, 25, Fig. 4, rotating about a vertical axis at different speeds in opposite directions. In the construction shown, the rotor 23 is driven by a motor 22, and communicates its movement to the rotor 25 through gearing 24, 26, 27, 28. A vertical reciprocating movement may be imposed on the main movement by two out-of-balance rotors 31, 32 driven by the gears 27, 29 in opposite directions at the same speed about a horizontal axis 30 and synchronising at the vertically opposite points of their movements. The unit 2 carries the screen and is supported by rods 8 and springs 9 from a support 5 to which a rotary movement is imparted from a pulley-driven shaft 6 and gearing 7 so as to distribute the feed from a stationary hopper 10 around the periphery of the screen. Alternatively, the rotary movement of the screen may be dispensed with, and the hopper mounted to rotate. In another form, the unbalanced rotors may be replaced by eccentric driving mechanisms.
Patent GB-773857-A (GB)
Title: Liquid composition for cleaning windscreens
IPC: C09K3/18
Filed: 1955-11-03
Abstract: A liquid composition for cleansing windscreens comprises an aqueous solution of at least 5 per cent by volume of iso-propyl alcohol, based on the total composition, together with minor amounts of a synthetic detergent and a corrosion inhibitor.  A preferred composition is 10 per cent isopropyl alcohol, 0.5 per cent "Comprox" (Registered Trade Mark), 0.2 per cent triethanolamine, and 89.3 per cent water.  The composition may be applied either by an installed windscreen washer or by a handheld spray.
Patent GB-505775-A (GB)
Title: An orthopedic apparatus for the treatment of the limbs
IPC: A61F5/058
Filed: 1937-11-16
Abstract: 505,775. Deformity and fracture appliances. CASTALDO, E. Nov. 16, 1937, No. 31487. [Class 81 (ii)] An orthopµdic apparatus consists of frameworks for the .pelvis, thigh, leg and foot which. articulate together and have polyhedric shapes. Both the thigh and the leg assemblies consist of two polygonal encircling members 1, 2, la and 2a, having sides 5 raised clear of the limb while others 4 press against the flesh, these latter sides being connected by extensible longitudinal members 3. Hinges 6 and 6a are fitted in the encircling members to enable the frame works to be opened.. The pelvis assembly has two encircling members similarly built up of alternate concave and raised extensible parts. These members are connected by an elastic metal arch at the back and a dilatable bridge at the front. Hinges 16 are provided for opening purposes. The foot assembly comprises a sole plate 32 with two extensible grips 33 and 34 for the foot and heel. The pelvis and thigh assemblies are connected by a stirrup 11 which is pivoted at 9 on an extension 7 of the outer side member of the thigh, and also pivoted at 13 on the pelvis assembly. The thigh and leg assemblies are connected by means of member 22 pivoted transversely and connected to the leg by means of the vertical piyots 24 which are retained by springs. The leg and foot assemblies are connected by two stirrups. One, U-shaped, 30 is pivoted transversally at its ends to the leg at 35 while the other, L.shaped, 31 is pivoted at one end to the apex of the former and at the other to the sole plate at 37. The foot assembly is kept in the normal position by springs. A telescopic bar 18 is connected to the framework for the pelvis by a universal joint 17 and to the encircling members of the thigh by levers 19 and 20. Springs serve to keep the thigh in the erect position while the bar 18 supports the weight of the body. The extension 21 connected to member 22 serves to flex the knee on the forward movement of the thigh. Collars 25 are provided on the longitudinal members of the thigh and leg to serve as pivots into which the lugs 26 of a spring apparatus may fit (see Fig. 4). This apparatus comprises a threaded rod on which a cylinder 27 screws, thus compressing the spring 29 and forcing the lugs apart. Graduations on cylinder 28 indicate the pressure. On releasing the screws on the longitudinal members corrective forces may be applied to the limb. The apparatus may be used as a splint or to restore movement to impotent limbs. It may be modified for use on the arm.
Patent GB-1013362-A (GB)
Title: Improvements in colloidal dispersions of calcium carbonate in iubricating oils
Inventor: VOORHEES VANDERVEER
IPC: C10M169/00
Filed: 1963-08-09
Abstract: A lubricating oil, specifically a petroleum lubricating oil, contains colloidally-dispersed calcium carbonate, an oil-soluble dispersant such as a calcium sulphonate, and optionally a hydrocarbon solvent such as aromatic or paraffinic petroleum naphthas, benzene, toluene or xylene.  Other dispersants include alkyl salicylates and salts of naphthenic acid or phosphorous acids derived from treatment of olefines with P2S5, and sulphonates of sodium, barium, magnesium, lithium, ammonium or amines.ALSO:A colloidal dispersion of calcium carbonate in lubricating oil is obtained by dispersing in anhydrous methanol (i.e. methanol with less than 1% water by volume) commercial calcium oxide derived by roasting calcium carbonate at 2000 DEG  C. at least, activating the dispersed oxide by adding less than 0.1 equivalents of an acid or acid anhydride having an ionization constant at least 1.75 + 10-5 (that of acetic acid) and capable of forming a water-soluble salt with calcium, mixing with the activated oxide and methanol an oil and oil-soluble dispersant, introducing gaseous or liquid carbon dioxide until no more is absorbed, while maintaining the temperature of the reaction below the boiling point of methanol, distilling off the methanol and recovering the oil-dispersant as a clear, filterable, free-flowing liquid containing dispersed calcium carbonate.  A hydrocarbon solvent, e.g. an aromatic or paraffinic petroleum naphtha, benzene, toluene or xylene may be added to the reaction mixture to reduce the viscosity of the oil during carbonation.  The activating acid or acid anhydride may be acetic, mono-, di-, or tri-chlor acetic, formic, salicylic, levulinic, lactic or itaconic acid, hydrochloric, sulphuric, sulphamic, nitrous or nitric acid, an alkane sulphonic acid, acetic anhydride, or nitrous oxide. Carbonation may be carried out at 80-100 DEG  F. and 5-50 p.s.i.g. and may be followed by a water treating step; the product may be filtered with diatomaceous earth. The preferred dispersant is a calcium sulphonate, particularly a "mahogany" sulphonate. The amount of calcium oxide is preferably 20-30% of the combined weight of oil and sulphonate.
Patent GB-1141316-A (GB)
Title: Thermal delay relays
IPC: H01H61/02
Filed: 1966-07-13
Abstract: 1,141,316. Thermal switches. TEXAS INSTRUMENTS Inc. 13 July, 1966 [4 Aug., 1965], No. 31509/66. Heading H1N. A thermal delay switch has a bi-metal or other actuating element 3 heated by a resistor 6, a heat storage device 4 being arranged between the element and the resistor. The device 4 permits direct transmission, as through an aperture 5, of part of the heat and storage of part of the heat. Several apertured members may be stacked to control the size of the effective aperture.
Patent GB-839739-A (GB)
Title: Refractory hot top bottom ring
IPC: B22D7/10
Filed: 1958-10-03
Abstract: 839,739. Ingot moulds. OGLEBAY NORTON CO. Oct. 3, 1958 [Oct. 14, 1957], No. 31613/58. Class 83(1). The refractory bottom ring 20 for a hot top, of the type to be set in an ingot mould 15, comprises a moulded-in sheet-metal wiper strip 22.