baber/WOPTO huggingface dataset:
Patent GB-422434-A (GB)
Title: Improvements in and relating to number plates, name plates, signs and the like
IPC: G09F13/06
Filed: 1933-10-27
Abstract: 422,434. Vehicle numberplates. EASTLEY, J. E., Loventor Manor, near Totnes, Devonshire. Oct. 27, 1933, No. 29853. [Class 3 (ii)] In a vehicle number-plate the characters on the front wall 1 of a casing A are provided with slots 7, extending lengthwise and substantially centrally of the limbs of the characters, through which light from a lamp 8, positioned behind a ruby glass 11, is directed by the reflecting wall 3 of the casing.
Patent GB-176043-A (GB)
Title: Improvements in or relating to means for braking railway and other vehicles
IPC: B60T7/12
Filed: 1920-10-22
Abstract: 176,043. Master, S. D. Oct. 22, 1920. Energy-absorbing elements.-Railway vehicles are braked by means of a cylinder to which steam or other fluid is admitted and which is slidably mounted upon the vehicle so that gearing to which the piston working in the cylinder is connected may be engaged and disengaged with gearing on an axle of the vehicle. The cylinder 7 is slidably mounted by supports 16 upon a bar 14 carried by the vehicle 1 and is connected to an eccentric 21 on a shaft 22 adapted to be turned by a piston 26, rack 24, and pinion 23. The connecting-rod 11 of the piston 8 is attached to a crank-pin 12 on a gear-wheel 5 pivoted upon a frame 18 fixed to the cylinder 7 and supported by a bracket 15a. The cylinder 7 is provided with a slide valve 13<1> actuated by an eccentric on the shaft of the gear 5 and the connecting- rod 13. Normally the gear 5 is not engaged with the gear 4 on the axle 3. When it is desired to brake the vehicle, steam or other fluid is admitted to the auxiliary cylinder 27 whereby the cylinder 7 and the parts connected with it are moved to bring the gear 5 into engagement with the gear 4 and at the same time a rack 32 connected to the cylinder opens a valve 33 to admit fluid by the pipe 34 to the valve-chest of the cylinder. The valve 13' then controls the admission of the fluid to the cylinder in such a manner as to oppose the movement of the vehicle. When the vehicle has stopped, fluid is admitted to the auxiliary cylinder 21 to return the piston 26 and the cylinder 7.
Patent GB-1507226-A (GB)
Title: Rotary frequency-changer
IPC: H02M1/20
Filed: 1975-07-17
Abstract: 1507226 Cooling dynamo-electric machines ANTON PILLER KG 17 July 1975 [26 July 1974 26 June 1975] 29971/75 Heading H2A A power unit comprises a rotary frequency converter 9 in a housing 10 which includes an upper chamber 8 containing control gear 26 for the converter, the converter shaft driving a fan 14 which causes coolant air to flow through the converter chamber 6 and the upper chamber 8 in series, the upper chamber 8 being divided longitudinally into two compartments by a wall 24, the coolant air passing through the two compartments in parallel. For maintenance purposes, the converter may be rolled out of the housing 10 on temporary rails engageable with rollers 62.
Patent GB-1140207-A (GB)
Title: Polyoxymethylenic copolymers
IPC: C08G2/16
Filed: 1966-07-04
Abstract: 1,140,207. Oxymethylene copolymers. MONTECATINI SOC. GENERALE PER L'lNDUSTRIA MINERARIA E CHIMICA. 4 July, 1966 [8 July, 1965]. No. 29989/66. Heading C3P. Novel copolymers containing sequences of oxymethylene units and oxyalkylene units derived from the opening of one or both the keratic rings of a cyclic ethylene diketal of a cyclic diketone having 4 to 6 carbon atoms in the ring, are prepared by reacting trioxan under anhydrous conditions with the diketal in the presence of a Lewis acid catalyst containing fluorine or chlorine at between 30‹ and 120‹ C. Suitable diketals mentioned are those of 1,3- cyclobutandione, of tetramethyl-l,3-cyclobutandione, and of 1,4-cyclohexandione of the fornlulµ Mixtures of the diketals with each other and with other monomers, e.g. hexahydrobenzotrioxyepane, hexahydrobenzo-dioxolane, dioxolane, cyclohexanone - ethylene ketal, 2,2 - dimethyl-dioxolane, or naphthodioxan may also be oopolymerized with trioxan. Suitable catalysts for the copolymerization are antimony fluoride or fluoborate, phosphorus pentachloride, ferric chloride, FeCl 3 , SnCl 4 , BF 3 , BF 3 .(C 2 H 5 ) 2 O, and BF 3 .(CH 3 ) 2 S.
Patent GB-446726-A (GB)
Title: Improvements in or relating to indian clubs
IPC: A63B15/00
Filed: 1935-11-01
Abstract: 446,726. Indian clubs. BATESON, R. G., 4, Arundle Grove, Moorland Road, Woodsmoor, Stockport, Cheshire. Nov. 1, 1935, No. 30142. [Class 132 (i)] In an Indian club of the kind having a hollow 2 for re movable weighting members, the latter are held against longitudinal move ment by pressure or the outer end of a non-attached plug 5 which is removably connected to the outer end of the large end of the club. The weights may b( nested tubes, or nested tubes 8, 9 anc a solid cylinder 10 as shown in Fig. 1, or may be a rod 22 on which discs 25 are held by nuts 26, Fig. 4. The conical ends 23, 24 of rod 22 centre themselves in conical recesses 16 and 20 in the club and plug respectively, In the form of Fig. 1, rubber disc pads may be used between the upper end of tubes 8, 9 and the recess 3 of the club and between the lower end of the tubes and the plug 5. The latter is threaded into the end of the club. The handle of the club is strengthened by an embedded steel rod 11.
Patent GB-888334-A (GB)
Title: Tongs apparatus
IPC: B66C1/30
Filed: 1958-09-22
Abstract: 888,334. Lifting devices. HEPPENSTALL CO. Sept. 22, 1958 [Sept. 23, 1957], No. 30179/58. Addition to 802,084. Class 78 (4). In a modification of the lifting tongs described in the parent Specification, the lifting arms 38 Fig. 3 are moved through linkages 37, 40, 43 by vertical movement of a sleeve 29 on a column 20. The sleeve 29 is moved on the column 20 by a screw, Fig. 4 (not shown), driven through a slipping coupling 18 by an electric motor 15 mounted on the column 20 and engaging a ball-bearing nut on the sleeve. A magnetic brake 35, operating on the screw, in circuit with the motor is released when the motor is energized, and is spring-applied when the motor is de-energized. In a modified embodiment, Figs. 5-7 (not shown), the motor is situated at the lower end of the screw shaft and a spring-loaded counterweight, guided on the column, is connected to the sleeve by means of a cable passing over a pulley at the top of the column. In a further embodiment, Fig. 8, a number of support columns 55, 56 are mounted between beams 53, 54, a number of pairs of connected lifting arms 65, together with the associated operating linkages, being pivoted to sleeves 59, 60 as in the previous embodiments, the sleeves 59 being raised on columns 55 to bring the lifting arms 65 together, by means of chains 83 secured to the sleeves at 84, 85 and passing round sprockets 81, 82, the sprockets 81 being mounted on a shaft 77 driven by a motor 68.
Patent GB-1438372-A (GB)
Title: Electric switches
IPC: H01H19/62
Filed: 1973-06-26
Abstract: 1438372 Cam-operated switches PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 June 1973 30181/73 Heading H1N An electric switch has a control knob mounted so as to be movable in both a rotatable and a slidable manner, in the rotatable manner the knob is connected through a shaft to a rotary circuit adjustment member and in the slidable manner the knob is movable sideways to actuate a circuit switching member. The switch is described for use with an electric blanket, the rotary adjustment being for heat selection and the sliding action providing an ON-OFF facility without interfering with the heat setting. Details of switch construction are as disclosed in Specification 1,438,371.
Patent GB-1165895-A (GB)
Title: Improvements in or relating to the Desalination of Sea Water and other Saline Waters
Inventor: WALKER PETER THOMAS
IPC: C02F1/06
Filed: 1965-07-15
Abstract: 1,165,895. Flash evaporators; desalination of water. WEIR WESTGARTH Ltd. 14 Oct., 1966 [15 July, 1965], No. 30197/65. Heading B1B. Water is desalinated in a tower 14 comprising a multi-stage flash evaporator section 15 which is disposed at the side of a condenser section 17, the saline water being drawn up from stage to stage, by pressure difference, through riser pipes 34 passing through horizontal plates 30 in section 15. The steam evolved in the stages passes through apertures 32 in wall 16 into section 17 where the steam is condensed by direct contact with waterinsoluble oil introduced into section 17 through spray-head 19. Section 17 is provided with perforated plates 18 and packing (not shown). A mixture of condensate (i.e. distilled water) and oil flows out of section 17 into separator 21, and the distilled water is withdrawn from the system through heat-exchanger 6. As shown, the saline water to be distilled is supplied through conduit 1 to heat-exchanger 2 where it is preheated by waste brine withdrawn from the top of tower 14 through conduit 3. The saline water next flows through heat-exchanger 6, and is then pumped through conduit 11 into liquid/liquid contactor 12 where the water is further heated by direct contact with or countercurrent of hot oil. The heated water, withdrawn from the base of contactor 12, is passed through conduit 13 into the base of the flash section 15 of tower 14. The oil which separates in separator 21 is pumped through heater 24 into the base of contactor 14; and the cooled oil withdrawn from the top of the contactor is recirculated to spray-head 19 in condenser section 17.
Patent GB-307528-A (GB)
Title: Improvements in and relating to nitro-cellulose products
IPC: C09D101/18
Filed: 1927-11-10
Abstract: 307,528. Jenkins, W. J., and Imperial Chemical Industries, Ltd. Nov. 10, 1927. Coating-compositions.-Nitrocellulose compositions and lacquers comprise derivatives of #- hydroxy propionic acid, especially those that are complete solvents for suitable nitrocelluloses. The derivatives include the alkyl and aryl esters, and the ethers of those esters, i.e. esters in which the hydrogen of the hydroxy group is replaced by an alkyl or aryl group. #-hydroxy propionic acid is also known as hydacrylie acid and ethylene lactic acid. The compositions may include plasticizers and softeners such as dibutyl phtha.- late and castor oil, partial solvents such as butyl alcohol, diluents such as xylol, resins and pigments. In examples the following materials are specified :-#-methoxy ethyl propionate, #- hydroxy methyl propionate, dammar, ester gum, butyl propionate, linseed oil, tricresyl phosphate, ethyl alcohol and turpentine.
Patent GB-191229-A (GB)
Title: Improvements in mats, floor and stair coverings, and such like
IPC: A47L23/24
Filed: 1921-11-12
Abstract: 191,229. Cooper, T. N. Nov. 12, 1921. Drawings to Specification. Mats; matting.-In flexible mats, floor coverings, or the like made from blocks threaded upon distanced rods which serve to connect the whole of the blocks to each other both longitudinally and transversely, the blocks are cut from discarded pneumatic tyre covers and are placed on edge upon the rods so that the tread surface is formed by both india-rubber and canvas. Each of the blocks, except those upon an edge of the mat, is formed of two pieces of cover laid side by side.
Patent GB-807026-A (GB)
Title: Improvements in or relating to multi-ply bags
Inventor: WILLIAMS RUSSELL JOHN
IPC: B31B39/00
Filed: 1955-10-21
Abstract: 807,026. Multi-ply paper bags. BEMIS BROS. BAG CO. Oct. 21, 1955, No. 30227/55. Class 94(2). A patch 21 of reinforcing material is pasted in between the plies at one or both ends of a multiply bag with offset seams 45, 47 to form a reinforcement which does not extend into the seams. Two webs of paper 1, 3 drawn from rolls 5, 7 combine at a guide roller 9, forming a twoply web which is formed into tube, web 1, the inner ply, travelling from roll 5 over roll 11 to roll 9 and web 3, the outer ply, travelling from roll 17 around roll 13, to guide roll 15, forward to roll 17 and downward to roll 9. The bite of webs 1 and 3 is indicated at B. As webs 1 and 3 combine, reinforcing patches 21 are fed and pasted in between them at bag length intervals, being severed from a web 23 drawn from roll 25, at a speed less than the speed of webs 1 and 3, by a pair of draw rolls 27. The width of the patch web 23 is less than width of webs 1 and 3. The web 23 is fed by roll 27 through cutter 29 and between webs 1 and 3 into bite B, the distance between the cutter 29 and bite B being equal to the desired length of the patch, and the timing of the cutter is such that it severs web 23 at the instant that the end of the web 23 is caught in bite B. The patch is pulled away from the freshly cut end of web 23 and the speed of web 23 is such that the spacing of the patches corresponds to desired length of the bags. Paste is applied to web 3 at bag length intervals by means of a spot paster 35 adapted to apply a pair of rows of spots 37b and 37t across the width of the web 3. The timing of the paster is such that the rows of paste spots register with patch 21 as it is drawn between webs 1 and 3, the rows of spots lying near the transverse edges of the patch. The patches extend from near one side margin of the composite web 39 to near the other. The composite web travels around on guide roll 41 and thence to a tuber (not shown) where it is formed into a gusseted tube 43, which is severed into bag lengths 51 on line C-C, centrally through patch 21. Each bag length is bottomed by stitching together its front and back walls as indicated at 53 in Fig. 2, the stitches extending through the patch 21b and the gussets 49. The line of stitching is located outward from the row of paste spots 37b. Each bag is ultimately closed at its top by a line of stitching similar to the stitching 53. The patches may be pasted to both plies, in which case paste may be applied to web 1 by means of a paster similar to 35. The bags may be made with more than two plies by combining additional webs at roller 9. The patches may extend only between the plies of the unseamed side of the bag with the edges approximately coincident with the inner creases of the gusset. In another modification, the patches are adapted to reinforce a pasted self-opening square bottom and a pasted top closure.
Patent GB-641929-A (GB)
Title: Improvements in or relating to electrical contact members
IPC: H01H1/36
Filed: 1948-11-22
Abstract: 641,929. Two-part couplings. GENERAL ELECTRIC CO., Ltd, PARKER, E. L., and REEVES, F. M. Nov. 22, 1948, No. 30299. [Class 38 (i)] [Also in Group XXXVII] A fixed contact comprises two identical stampings 1, e.g. of phosphor-bronze or beryllium-copper, secured on opposite sides of a support 2. Each stamping has a channelshaped part 5 and two tongues 6 arranged at about .135 degrees to the end portion 8 of the part 5, the tongues of the two stampings being interleaved so as to form a trough to receive a wire which may be soldered thereto. The tongues and the intervening spaces are each one-quarter of the width of the stamping. The other ends 9 of the stampings are bent down slightly, the corners being bent up at 10 to ease entry of the co-operating contact between them.
Patent GB-482874-A (GB)
Title: Improvements in photographic objectives
IPC: G02B17/08
Filed: 1937-11-05
Abstract: 482,874. Photographic objectives. ZEISS, C., [Firm of]. Nov. 5, 1937, No. 30311. Convention date, Nov. 12, 1936. [Class 97 (i)] An objective containing a mirror lens comprises two exterior convergent members and an interior divergent member, the rearmost member being the mirror lens which has its concave side turned towards the divergent member. The distance l<2> between the front vertex of the mirror lens and the rear vertex of the divergent member is greater than the focal length of the objective. The radius of curvature of the reflecting surface r6 of the mirror lens is at least 1À25 times that of the refracting surface r<5>. The objective can be used as a, microscope objective by reversing the path of the rays, the object to be magnified being situated between the mirror lens and the divergent member and illuminated through an axial aperture of the mirror lens. Data are given for the system shown, having an aperture f /0À5.
Patent GB-1467474-A (GB)
Title: Coder-decoder for a time division multiplex communication system
IPC: H03M1/58
Filed: 1974-07-09
Abstract: 1467474 Pulse code modulation encoding and decoding SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 9 July 1974 [12 July 1973] 30320/74 Heading H3H In a companding codec for a TDM PCM communication system, the clock pulse generator G2, 4-bit binary counter A and digitalto-analogue converter G1 for generating a segmented approximation to an exponentially increasing comparison waveform are shared by all the channels. Each channel also includes in its coder a comparator CM in which the comparison waveform is compared with the analogue input signal to define a time interval during which pulses from G2 are counted at CN the result being held in a store MT prior to multiplexing; and in its decoder a store MR, digital comparator CD for comparing the stored digital signal with the count in a counter CN<SP>1</SP> receiving pulses from G2 to actuate at equality a sampler CA to pass the then value of the comparison waveform to a holding circuit CT. The comparison waveform may have the form shown in Fig. 2a, producing A-law companding with the most significant bit in counter CN being determined by the sign of the input analogue signal. Alternatively, only the positive segments may be generated, the sign being determined in a rectifying circuit D, the decoder including a polarity restore inverter. For generating the Fig. 2a waveform, switches T 1  to T 7 , Fig. 3, are sequentially closed and held closed, R 1  and R 2  being equal and R 3  to R 7  having each half the resistance of the preceding resistor, whereby the rate of increase of the voltage on capacitor C doubles each time a switch T is closed. Inverter In inverts alternate ramps.
Patent GB-282207-A (GB)
Title: Improvements in or relating to dark slides or cassettes for x-ray films or plates
IPC: G03B42/04
Filed: 1926-11-30
Abstract: 282,207. Kodak, Ltd., and Done, P. B. Nov. 30, 1926. R÷ntgen-ray apparatus.-In a hinged bookform dark-slide for X-ray films or plates, the flanges A<2>, C<2> on two opposite sides of the two leaves overlap when closed; the lid C has L- shaped spring clasps D engaging catches D<1> on the base tray A; the tray A is fitted with a pad F on which the film or plate is placed; the flanges A<3>, C<3> and those on the opposite side adjacent the butt type hinge are half the total depth of the slide and abut when closed; and an inner lining E fitted within the lid C forms a safety light trap. The bottom of the tray A has supporting studs.
Patent GB-303281-A (GB)
Abstract: 303,281. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Jan. 13, 1928. Emulsions, making.-Products useful as emulsifying agents are obtained by sulphonating the oxidation products of paraffin hydrocarbons or waxes, the treatment being applied either to the crude oxidation products or to the saponifiable and unsaponifiable portions separately or in admixture and with or without separation of unaltered initial material. In one example, an oxidation product from soft paraffin is saponified and the unsaponifiable matter is separated. The neutral oxidation products are extracted from the unsaponifiable matter by careful warming and are then treated with oleum at 35‹ C., a watersoluble oil being obtained. In another example, an oxidation product from hard paraffin wax is filtered by suction, at a temperature rising gradually to 42‹ C., from unaltered initial material. The oxidation product is saponified and the unsaponifiable matter removed, and the acids are then set free from the saponification product and treated with chlorsulphonic acid at 40-45‹ C. The unsaponifiable oxidation product is sulphonated with oleum as in the first example. In a further example, a product obtained by agitating liquefied paraffin wax with air in the presence of aluminium lumps is extracted with methyl alcohol. The extract is evaporated and triturated with sulphuric acid at 35‹ C., excess of acid being then removed by washing with sodium sulphate solution. The product, with the addition of a little aqueous ammonia, emulsifies. spindle oil.
Patent GB-1040286-A (GB)
Title: An improved process and apparatus for manufacturing pile carpet
IPC: D04H11/00
Filed: 1963-08-31
Abstract: 1, 040, 286. Pile fabrics. R. J. IRVINE. Nov. 25, 1964 [Aug. 31, 1963], No. 30352/63. Heading D1K. Patterned pile fabrics are made by sticking coloured yarns to a backing material and, after the adhesive has set, pushing the backing away from the yarn magazine to draw the yarns through the magazine. The yarns are then cut to give the desired depth of pile. The yarns 12 are arranged horizontally in the magazine and project through a honeycomb arrangement comprising a series of spaced plates 8 having a set of upstanding fins 11. The adhesive coated backing 13 is fed from a roll and pressed against the ends of the yarns by a heated plate 17. Then the adhesive has set bars 21 are advanced from below the fins and push the backing away from the magazine. The magazine may be removed from the apparatus and replenished by laying layers of yarn inside it.
Patent GB-1399161-A (GB)
Title: Control of packaging
IPC: G01M3/40
Filed: 1972-06-29
Abstract: 1399161 Testing packages UNILEVER Ltd 29 June 1972 [1 July 1971] 30414/72 Heading B8C The effectiveness of the seal of a container is tested by inserting or incorporating an electrode 5 in the container to provide an electrically conductive path between the product and the exterior of the container, immersing at least the seal of the container in an electrolyte 1, applying a voltage between the electrode and electrolyte, and measuring the current flow. The electrode may comprise an insulated wire or foil passing through the seal as shown, or a plate electrode forming part of, and insulated from the rest of, the base of a metal container Alternatively the electrode may comprise a needle inserted into a plastics container during testing, with the hole formed by the needle being closed by a measured amount of molten plastics on removal of the needle.
Patent GB-910325-A (GB)
Title: New and improved morphine derivatives and process of making
Inventor: WEISS ULRICH
IPC: C07D489/08
Filed: 1960-09-02
Abstract: The invention comprises 14-hydroxymorphine and its therapeutically acceptable acid addition salts, and the preparation of the base by reducing 14-hydroxymorphinone with sodium borohydride.  The products are useful as analgesics.  14-Hydroxycodeine is formed when 14-hydroxymorphine is treated with diazomethane.
Patent GB-1117228-A (GB)
Title: Etching of silicon and germanium plates
IPC: H01L21/312
Filed: 1965-07-19
Abstract: 1,117,228. Etching. FABRYKA POLPRZEWODNIKOW " TEWA " PRZEDSIEBIORSTWO PANSTWOWE. 19 July, 1965 [24 July, 1964], No. 30496/65. Heading B6J. A method of etching patterns in silicon or germanium plates comprises applying to the plate an intermediate layer comprising natural shellac or phenol-formaldehyde resin, ethyl alcohol, amyl acetate, castor oil and colloidal silica, applying a light-sensitive layer consisting of vinyl polyalcohol, water, ammonium dichromate and a humidifying substance, exposing to light through a negative, developing with water, removing the exposed parts of the intermediate layer with ethyl alcohol or oxalic acid and saccharic acid, and etching with a mixture of hydrofluoric acid, nitric acid, acetic acid and potassium iodide. To increase the acid resistivity of the intermediate layer the plate is tanned, silicon plates with chromic acid and germanium plates with a phenolic-formaldehyde-sulphite resin. The light-sensitive layer may be coloured.