baber/WOPTO huggingface dataset:
Patent GB-747270-A (GB)
Title: Improvements in hydraulic pit props
IPC: E21D15/58
Filed: 1953-09-01
Abstract: 747,270. Hydraulic pit props. DOWTY HYDRAULIC UNITS, Ltd., [formerly DOWTY AUTO UNITS, Ltd.], and DOWTY, G. H. Sept. 1, 1954 [Sept. 1, 1953], No. 24182/53. Class 20(2). A hydraulic pit prop of the kind which consists of a ram 11 constituting a reservoir 19 for actuating fluid, telescopically slidable within an outer tube 12, is provided with a hydraulic accumulator 30 connected to the cylinder space 23 by a relief valve 32 which permits fluid to flow from the space 23 into the accumulator 30 when a predetermined pressure has been built up in the space 23, whereby energy generated during settlement of the mine roof is stored in the accumulator 30. The energy stored in the accumulator 30 can be used subsequently for giving a rapid extension to the prop by opening a manually controlled valve 34 and closing a valve 20, whereby fluid from the accumulator is caused to flow into and to extend a pair of telescopic tubes 15, 25 arranged within ,the prop between the outer ends of the ram 11 and tube 12. A one way valve 39 at the inner end of the ram 11, permits fluid to flow from the space 19 into the cylinder space 23 during such extension. The prop may be collapsed when desired without resistance from the stored energy by opening the valve 28 which permits fluid to flow from the space 25 via passage 27, tubes 25, 15 and passage 18 (the valve 20 being normally open) into the space 19 in the ram 11. A relief valve 36 permits fluid to flow from the accumulator 30 to the space 19 via the passage 35, tubes 25, 15 and passage 18, in the event of excess pressure in the accumulator 30. The prop is initially set by operating a pump 22 whilst the valve 20 is open and the valves 28, 34 are closed.
Patent GB-161116-A (GB)
Title: Improvements in or relating to acetylene generators
IPC: C10H21/16
Filed: 1920-08-20
Abstract: 161,116. Brown, D. A. Aug. 20, 1920. Removing sludge from generators; solid supply to liquid.-The water that serves to control the supply of carbide to a carbide-to-water acetylene generator is delivered through a pipe 2 to the generating-chamber 1 for the purpose of stirring- up and discharging the sludge, which with the excess of water escapes through a valveless overflow 18 located near the upper end of the generating-chamber. The water is supplied from a flushing-cistern 4 in which is a float 17 connected through ratchet-gearing with the carbidefeeding worm 10; or the latter may be actuated by a water motor. The pipe 2 is provided with a siphon head 5 for the separation of air which escapes through a vent 6.
Patent GB-991143-A (GB)
Title: Improvements relating to grinding wheels
Inventor: TURNER FRANK ANTHONY LEONARD
IPC: B24D3/34
Filed: 1962-06-25
Abstract: A grinding wheel for electrolytically assisted grinding having an electrical resistivity below 0.0065 ohms/c.c. is formed from a moulded and cured mixture of 10 to 50 volume per cent of (a) electrically non-conducting abrasive particles, and up to 90% volume per cent of (b) a combination of 40 to 75 volume per cent of deoxidized copper or copper alloy powder having a specific resistance less than 7.5 microhms/cm. and 60 to 25 volume per cent of a powdered thermosetting resin.  A liquid binder, e.g. furfural or a liquid synthetic resin may also be included in the mixture. In examples, wheels are made from alumina, copper and phenol-formaldehyde resin, with and without furfural as a binding assistant. The phenolic resin may be replaced by an epoxy resin.ALSO:A grinding wheel for electrolytically assisted grinding having an electrical resistivity below 0.0065 ohm/c.c., is formed from a moulded and cured mixture of (a) 10-50% (by volume) of electrically non-conducting abrasive particles and (b) up to 90% a combination of 40-75% of deoxidized copper or copper alloy powder of specific resistance below 7.5 microhm/cm. and 60-25% of a powdered thermosetting resin.  A liquid binder e.g. furfural or a liquid synthetic resin may also be included to assist shaping before cure.  In examples wheels are made from alumina, copper and phenolic or epoxy resin, with and without furfural and have resistivities of 0.000434 and 0.0059 ohms/ cm. respectively.
Patent GB-902977-A (GB)
Title: Bobbin handling arrangements
IPC: D01H9/00
Filed: 1959-06-10
Abstract: 902,977. Bobbin holders. DEERING MILLIKEN RESEARCH CORPORATION. June 10, 1959 [June 10, 1958], No. 24327/61. Divided out of 902,973. Addition to 902,975. Class 120 (2). A bobbin may be ejected from its holder 19g by the application of pneumatic pressure to a collapsible and expansible tube 141 mounted in the holder support 145, which tube expands against a support plate 151 secured to a plunger 143, thereby moving the plunger and ejecting the bobbin.
Patent GB-1221668-A (GB)
Title: Improvements in or relating to cable suspended cradle systems for use on buildings
Inventor: WILLIAMS RICHARD JOHN
IPC: E04G3/30
Filed: 1968-05-22
Abstract: 1,221,668. Securing cables. MILLS SCAFFOLD CO. Ltd. 21 Aug., 1969 [22 May, 1968], No. 24329/68. Heading D1T. [Also in Division E1S] A guide to steady a cable supporting a workman's cradle on a building face is screwed by a thread 54 to a stud on the building, such engagement releasing a catch 25 by means of shafts 42, 44 and plunger 34. The cable is inserted through a slot 23 into a guide 30, the catch 25 rotating about pivot 26, and being held in a position where it closes the slot 23 by a spring loaded plunger 61 engaging a notch 32. Operation of the plungers 34, 61 completes an electrical circuit through switches 64, 66 to permit the cradle to be lowered to another position. The cable is released by manually retracting plunger 61.
Patent GB-316454-A (GB)
Title: Improvements in swimming costumes
IPC: A41D7/00
Filed: 1928-08-24
Abstract: 316,454. Joberns, W. Aug. 24, 1928. Buoyant swimming and bathing dresses.-An inflatable garment comprises two layers of rubber or other waterproof material separated by semi-rigid distance pieces c which may consist of lengths of rubber strip, tube, or spongy rubber, vulcanized or otherwise connected to the layers. The air space between the layers increases towards the top of the garment. The garment, which may be lined, buttons down the chest where it is not inflated.
Patent GB-482499-A (GB)
Title: Method of manufacturing annular discs
IPC: B21H1/02
Filed: 1937-09-07
Abstract: 482,499. Rolling discs. SCHUSTER, H. Sept. 7, 1937, No. 24387. Convention date, Aug. 14. [Class 83 (iv)] Cross rolling.-A thick annular blank 1 is reduced to a thin annular disc 3, e.g. for automobile wheels, by rolling it in a succession of different directions generally at 90‹ to the previous direction, so that the disc becomes elliptical, e.g. at 2 and finally is restored to the circular shape 3. The percentage thinning, in the pass y, e.g. is the same as that in the previous pass, e.g. x. As the diameter of the hole does not increase to the same percentage as the external diameter, the blank is selected of such dimensions as to give the required final dimensions. The blank may be turned through 90‹ or other angle after each pass, or the successive roll passes may be arranged at the required angle for cross rolling.
Patent GB-817479-A (GB)
Title: A railway truck
Inventor: COOKE JAMES WELCH
IPC: B61F3/06
Filed: 1956-08-09
Abstract: 817,479. Rail motor vehicles. GENERAL STEEL CASTINGS CORPORATION. Aug. 9, 1956, No. 24431/56. Class 79(3) [Also in Group XXXII] In a three-axled railway bogie having a transverse bolster structure 2, 3, 4, 5, Figs. 1 and 2, between the middle axle and each end axle, an electric motor 21, 24 has its mountings solely on the bogie frame between the middle axle and each bolster structure and has a longitudinal drive shaft 22, 25 extending beneath the level of the bolster structure and connected to the axle at the opposite side of the bolster structure. As further shown in Figs. 1 and 2 the bogie frame comprises longitudinals 1, the bolster structures 2, 3, 4, 5, end members 6, 7 and pedestal legs 8 receiving axle boxes 9 of wheel and axles assemblies 10, 11, equalizers 12 extending between the boxes 9 and provided with springs 13 abutting the frame which may be fabricated or a one-piece casting. Pivotally suspended from the ends of the bolster structures 2, 3 and 4, 5 are swing hangers 14 carrying spring planks supporting bolster springs 16, the bolster 17, 18, 19 being H-shaped. and the bolster part 19 carrying a plate 20 supporting the vehicle body (not shown). To longitudinal frame members 30, 31 between the structures 3, 4 are bolted the motors 21, 24 connected by the drive shafts 22, 25 to gear casings 23, 26 on the end axles 11. To longitudinal frame members 32, 33 connecting the bolster structure 5 and the member 7 is bolted a motor 27 connected by shafting 28 to a gear casing 29 on the middle axle 11. Each gear casing has an arm 39, Fig. 4, connected to the adjacent transom by a bolt 40 and springs 41, 42. In another embodiment, Figs. 5 to 7, (not shown), the invention is applied to a bogie frame in which the bolster structures merge to form a body supporting bolster rigid with the rest of the frame. In a further embodiment, Fig. 8 (not shown), the vehicle body is pivoted to the bogie frame between the middle axle and one end axle and has sliding bearing contacts with the bogie frame at two points between the middle axle and the other end axle. In another embodiment, Fig. 11, the end axles 100, 101 are driven through gearing 112, 113 and shafting 110, 111 from motors 102 mounted on both sides of a central pivotal connection 108 between the bogie frame and vehicle body.
Patent GB-1019474-A (GB)
Title: Improvements in the manufacture of hollow waveguides and like circuit elements
IPC: H01P11/00
Filed: 1964-06-12
Abstract: 1,019,474. Welding by pressure. PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES Ltd. June 12, 1964 [June 17, 1963], No. 24495/64. Heading B3R. [Also in Division H1] A hollow waveguide or cavity resonator is made by joining together a number of parts, the mating surfaces being milled to optical smoothness and a diffusion weld being produced between them by compression and heating. The roughness of the surfaces should not exceed one micron. Copper parts may be joined by heating at temperatures between 475‹ and 1000‹ C. for times varying from a few minutes to one hour. A low pressure, e.g. 0À3 kg/cm.<SP>2</SP>, may be applied or the weight of the parts themselves may be sufficient. The welding is effected in hydrogen.
Patent GB-782475-A (GB)
Title: Improvements in method of producing alkali metal titanium double fluorides in which the titanium has a valence of less than four
IPC: C01G23/00
Filed: 1955-08-26
Abstract: Sodium, potassium or lithium titanium double fluorides in which the titanium has a valency less than four are prepared by heating a mixture of a sodium, potassium or lithium titanium double fluoride in which the titanium has a valency of four, carbon and a titanium oxide to 780-1150 DEG  C. in an inert atmosphere.  The reactants should be pure, and preferably the carbon and titanium oxide are thoroughly blended, pelletized using a binder such as methyl cellulose and water and dried at 150 DEG  C. for 8-10 hours before mixing with the salt. Titanium monoxide, sesquioxide or dioxide may be used, and the carbon can be lamp-black or graphite. Suitable proportions are indicated and chemical reactions given. A temperature below 900 DEG  C. favours the formation of trivalent titanium compounds and above 900 DEG  C. divalent compounds are favoured.  The reaction may be carried out in the presence of alkali metal (e.g. Na, K and Li) chlorides as diluents in up to equimolecular proportions with the initial fluotitanate.  The reaction may be carried out in a furnace comprising a steel pot having a graphite resistance heating element in the form of a liner which supports a silicious insulating powder against the walls of the pot, a graphite reaction vessel disposed within said heating element and a gastight lid for said pot provided with electrical connections and the necessary pipes and valves for the supply and withdrawal of gases.  After completion of the reaction the product may be filtered whilst still molten (this procedure is preferred in difluoride production) or cooled, crushed and leached with cold dilute hydrochloric acid.  The mixture is filtered and a saturated solution of sodium fluoride added.  After stirring and warming crystals are precipitated and recovered.  The mother liquor is again treated with saturated sodium fluoride and a further crystalline precipitate is collected.  Both batches of the product crystals may be dried at 105 DEG  C., but they are not identical. The residue after leaching and the final liquor contain alkali metal-(tetravalent) titanium fluoride which may be recovered and re-used in the process.  In one example in which filtration of the melt is employed it is stated that titanium oxycarbide is recovered on the filter.  Specification 735,597 is referred to.
Patent GB-1439734-A (GB)
Title: Industrial aqueous waste containment
IPC: E02D31/06
Filed: 1974-06-03
Abstract: 1439734 Soil sealant compositions AMERICAN COLLOID CO 3 June 1974 24552/74 Heading C3P [Also in Division E1] A soil sealant composition for mixing with the soil of an enclosure containing water contaminated with water soluble industrial waste salts comprises hydrated bentonite, a water soluble dispersing agent, and from 0À1 to 3À0% be weight of a water soluble polymer selected from polyacrylic acid, water soluble salts of polyacrylic acid, hydrolysed polyacrylonitrile, polyvinyl acetate, polyvinyl alcohol, copolymers of the foregoing, and copolymers of acrylic acid and maleic anhydride, the weight ratio of dispersing agent to polymer being from 6 : 1 to 1 : 6. The dispersing agent may be a water soluble salt of phosphoric acid, sulphates having the formula ROSO 3 X where R is a hydrocarbon group having 8 to 32 carbon atoms and X is alkali metal or ammonium, or a water soluble salt of leonardite.
Patent GB-814142-A (GB)
Title: Rotary filter
IPC: B01D33/06
Filed: 1956-08-13
Abstract: 814,142. Gas filters. YOUNG, F. W. Aug. 13, 1956 [Aug. 23, 1955], No. 24654/56. Class (2). [Also in Group I] A rotary filter comprises open ended cylindrical filter shells 62 mounted on stationary end members 66, 67, Fig. 6. The end members are joined by struts 68, 69, Fig. 5, located near the bottom of end members. Chambers 70 attached to the struts are connected to conduit 78 by conduits 72. In operation the filter shells 62 are rotated by belt 64 in the filter chamber 60. Air enters the chamber through inlet 61 and clean air passing through the filters is withdrawn through conduit 74 by pump 76. By operating valve 83 some of the clean air may be directed to conduit 78, which connects through a pulsating valve 80 to the blow back conduits 72 and chamber 70. The filter shell may be formed as a cage of outwardly slotted tubes through which rods are inserted to secure the filter cloth as in Fig. 8 (not shown). Specifications 537,650, 537,679, 687,095 [all in Group I] and U.S.A. Specification 2,732,912 are referred to.
Patent GB-860902-A (GB)
Title: An improved method of and apparatus for supplying acetylene gas and a solvent to storage containers
IPC: F17C5/06
Filed: 1959-07-20
Abstract: <PICT:0860902/IV (b)/1> Prior to being charged into acetonefilled storage containers, acetylene gas is saturated with acetone vapour by admitting the gas through a duct 2, valve 4, check valve 5 and flasharrestor 6 into the lower end of a Raschig ring filled tower 1 supplied with acetone through a conduit 14 from a pair of feed chambers 15, 19 connected by a duct 16 to an acetone storage vessel 18; liquid acetone being separated from the mixture in a chamber connected at its base to the outlet duct 3 of the tower 1 and having valved outlet ducts 12, 13 connected to the storage cylinders 241, Fig. 3 (not shown, see Group XXVIII).
Patent GB-518500-A (GB)
Title: Improvements in or relating to window blinds
IPC: E06B9/50
Filed: 1938-08-24
Abstract: 518,500. Window blinds. ROBERTSHAW, W. L. Aug. 24, 1938, No. 24860. [Class 20 (iii)] To prevent the passage of light, the edges of a blind are held against the window frame by means of bracket arms fitted on the blind mounting and/or frame. Fig. 1 shows a usual rollersupport 9 fitted with a bracket 11 having a projecting arm 12 arranged to press against the blind 13, as seen in Fig. 7. Fig. 6 shows a modified form of bracket, for attachment at intermediate positions along the window frame, comprising a backplate 14 and a pivoted arm 15 adapted to be moved over the edge of the blind.
Patent GB-1429666-A (GB)
Title: Benzodiazocine derivatives and a method of producing the same
IPC: A61K31/551
Filed: 1973-04-25
Abstract: 1429666 Benzodiazocines KALI-CHEMIE AG 25 April 1973 [3 May 1972] 24910/75 Divided out of 1429665 Heading C2C Compounds of the general formula (R 1  = H, unsubstituted or substituted C 1-6  aliphatic or alicyclic group; R 3 =halogen, OH, acyloxy; rings A, B may be substituted) and their acid addition salts are prepared by cyclizing with a phosphorus oxyhalide a compound of the formula (R=OH, acyloxy), optionally followed by deacylation and/or salt formation. The products are tranquillizers.
Patent GB-1384424-A (GB)
Title: Voltage-to-time converters
IPC: G01R19/255
Filed: 1972-05-26
Abstract: 1384424 Voltage measuring CONTROL & READOUT Ltd and E L CLARKE 8 May 1973 [26 Mayl972] 24929/72 Heading G1U [Also in Division H4 A voltage to time converter comprises an amplifier having a transformer in a negative feedback path, means connected to the input of the amplifier for applying thereto the input signal voltage for a predetermined time so as to change the flux in the core and thereafter for applying thereto a reference voltage which returns the flux to its initial condition, means being provided for measuring the time taken for returning the flux. The figure shows an amplifier A having a feedback transformer B normally saturated by a constant current source 39. A pulse at S opens a gate T1 to apply an input signal voltage to the amplifier for a given time so that the transformer core is brought out of saturation by an amount proportional to the input signal amplitude. When gate T 1 is closed gate T2 is opened to provide a reference voltage at the input of the amplifier so that the core is driven back to its initial saturation state at a predetermined rate and the time it takes therefore depends upon the input signal level. A transistor T7 became conducting when the input signal was first applied to the amplifier and remains conducting until the core resaturates and thus removes the feedback and causing the reference voltage to drive the amplifier output highly negative. Conduction of transistor T7 produces a corresponding pulse output from T11. The gate control pulses are derived by counting down from an oscillator and if the oscillator output is supplied to a further counter when the restoration of the core to its saturated state is started and terminated when the saturation state is reached the count will indicate the amplitude of the input signal. In the quiescent condition of the circuit T1 and T2 are off, T3 half the input of the amplifier and T12 completes a feedback path whereby a feedback capacitor Cl is charged to compensate for  voltage offset.
Patent GB-1460730-A (GB)
Title: Electric lamps for vehicles
IPC: H01R33/46
Filed: 1973-05-24
Abstract: 1460730 Lamp holder VEGA AUTO PRODUCTS Ltd 24 May 1974 [24 May 1973] 24941/73 Heading H2E [Also in Division F4] Insulated housing 2 for a light source, e.g. for a vehicle (3, Fig. 4, not shown) as described in Specification 1,458,193, can be coupled to a lamp body 1 by passing lugs 17 upwardly through diametrically opposed recesses 8 in the end wall of aperture 7, until shoulder 19, optionally gapped at 20 to assist moulding, butts under the rim of aperture 7. A quarter turn carries lugs 17 up cam ramps 10 to lock in depressions 11. Below and outside aperture 7 on annular rib (9, Fig. 4, not shown) closely surrounds shoulder 19: an elastomeric sleeve surrounding the walls and base of housing 2 may be fitted, its lip closing the annular gap between the rib (9) and the wall 12 of the housing.
Patent GB-409568-A (GB)
Title: Improvements in and relating to endless track tractors
IPC: B62D49/06
Filed: 1933-09-09
Abstract: 409,568. Endless - track tractors. FERRAGUTI, M., 8, Via Delle Arti, Rome. Sept. 9, 1933, No. 25031. [Classes 79 (i) and 79 (iii).] A tractor comprising a front section A running on a single endless-track a and a rear section B pivoted at C to A and running on wheels, the power unit M and driving gear being enclosed within a housing forming part of A and surrounded by the track, is characterized in that the track is provided with rollers running on curved spring rails O, Fig. 4, bent as shown and attached at their forward parts to the section A so that their rear ends are free and act as spring tensioning means for the track. The track comprises links w connected by pivot pins z, the rollers f which engage the rails O being mounted on sleeves h mounted by means of bearing bushes g on the pins z. Other bushes d on which the track shoes b are mounted have conical heads engaging tapering holes in the sleeves h so as to prevent dirt from working into the bearings. The rollers f engage in recesses in sprockets N driven by the engine M. The motor M is enclosed in a casing formed by side walls J and a frame member L and the petrol or oil tank is mounted at Z. The tractor is steered by means of a shaft G mounted in a casing H fixed to the section A and driving a gear wheel fixed on the pivot C which is rigidly secured to the section B. The rear section comprises a frame B and a transverse bar Q. The load or trailing implement is connected to a bar X, the height of which may be adjusted as described. This bar is pivoted at 1 to a quadrilateral linkage U, U<1>, U<11> pivoted at 4, 5 to ears I<1> on the bar Q. A hand lever V, V<1>, secured in any position by means of a quadrant W, is connected by a link U‹ to the link U, so that the bar X may be moved to and held at various positions as required.
Patent GB-471011-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B25/00
Filed: 1936-09-15
Abstract: 471,011. Two-stroke engines. CREMER; C. L. Sept. 15, 1936, No. 25122. Convention date, June 9. [Class 7 (ii)] A two-stroke engine com prises cylinders 1, 2 arranged in tandem, pistons 3, 4 con nected in tandem by a trunk 5 in which are transfer passages 11 capable of bridg ing the cylinders, and a non return valve 4a in the pistor 4 for passing an air-fuel mix ture therethrough. On the up-stroke stroke, the valve 4a lifts off its seat and allows the mixture to pass from a chamber 12 into the space below the piston 4 ; by en gaging a stop-plate 15 fixed to the piston, the valve sub sequently carries the piston along with it. Meanwhile, the previous charge is being compressed in the cylinder 1. On the down-stroke, the valve closes, and the induced charge is compressed and near the end of the stroke is transferred to the cylinder 1 via the passages 11 as that cylinder is exhausting. The chamber 12 may be open to more than one set of cylinders, a non-return valve may be fitted between the chamber 12 and the carburetter, and the cylinder 2 may be of greater capacity than the cylinder 1 to provide a supercharging effect.