baber/WOPTO huggingface dataset:
Patent GB-1395861-A (GB)
Title: Production of 2,6-dichloropyridine
IPC: C07D213/61
Filed: 1973-02-01
Abstract: 1395861 2,6-Dichloropyridine DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 1 Feb 1973 [21 Feb 1972] 4994/73 Heading C2C 2,6-Dichloropyridine is obtained by reacting pyridine with 2 to 3À5 moles of chlorine per mole of pyridine at an average reaction temperature of 370-430 C. in the presence of 8 to 14 moles of steam per mole of pyridine. The examples describe a continuous process wherein 2-chloropyridine is obtained as a secondary product.
Patent GB-1245861-A (GB)
Title: Pigmentary titanium dioxide
IPC: C01G23/053
Filed: 1969-01-29
Abstract: 1,245,861. Titanium dioxide. TITAN G.m.b.H. 29 Jan., 1969 [17 Feb., 1968], No. 5060/69. Heading C1N. Pigmentary titanium dioxide of rounded particle shape is made from a hydrochloric acid solution of titanium chloride containing at least 0À2% by wt. of SiO 2  based on TiO 2  content, removing silica from the solution until the silica content is less than 0À2% by weight, based on the weight of titanium dioxide, hydrolysing the solution, filtering and washing the hydrous TiO 2 , and then calcining it at 850-1000 C. The solution may be obtained by digesting titanium-bearing concentrates or ores e.g. ilmenite with hydrochloric acid, in the presence of metallic iron. The silica content of the reduced, digested solution is reduced to the required level by heating the solution, suitably for ¢-3 hours at 75-90 C., and removing silica, together with ferrous chloride, precipitated with the aid of a flocculating agent such as glue, gelatine or an amine/amide polymer. Alternatively, ferrous chloride may be precipitated and removed by cooling and filtering the reduced, digested solution before the thermal/ flocculant treatment to precipitate silica. Hydrolysis of the relatively silica-free solution is effected by heating it with a seed solution. The precipitate of hydrated titanium dioxide is washed with sulphuric acid and with water and is calcined with or without addition of a potassium compound.
Patent GB-429384-A (GB)
Title: Improvements in apparatus for rescuing the crews of sunken submarines and surface-going vessels in distress
IPC: B63C9/06
Filed: 1934-02-15
Abstract: 429,384. Lifeboats. MASON, R. T. G., 122, Tintern Avenue, Westcliff-on-Sea. Feb. 15, 1934, No. 5089. [Class 113 (ii)] A lifesaving craft comprises a spherical shell 1 with keel 4 and stabilizing fins 1<a>. An interior freely-moving chamber 2 is arranged concentric with the outer shell and spaced therefrom by anti-friction devices 3. The hatch 6a provides access to the inner chamber which may be provided with sitting arrangements, hammocks, &c. The device may be secured to a submarine craft by releasable bolts. In this case access is provided by a removable hatch cover arranged in the keel.
Patent GB-765263-A (GB)
Title: Improvements in motor driven pumps
Inventor: WHITE HOWARD THEODORE
IPC: F04D13/06
Filed: 1955-02-21
Abstract: 765,263. Centrifugal pumps. CHEMPUMP CORPORATION. Feb. 21, 1955, No. 5160/55. Class 110 (1). A motor-driven pump comprises an impeller housing 10 having a removable closure-plate 15 provided with an inlet 17, an annular housing end member 32, a hollow cylinder 40 of non- magnetic material and a cover 31, each extending between the housing 10 and the member 32 to form separate chambers for the motor rotor 52 and motor stator 46, and a closure-plate 35 carrying a shaft bearing 38 and having a cylindrical shoulder 43 in engagement with the interior of the cylinder 40. Sealing rings 42, 45 of natural or synthetic rubber are provided. Bearings 24, 25 may be of rubber or wood, and the bearings 24, 25, 38 may be lubricated by the pumped fluid. A thrust collar 55 may be provided.
Patent GB-1468171-A (GB)
Title: 2-amino-4-hydroxy-7,8-dihydropteridine-6-carboxaldehyde deri vatives
IPC: C07D475/04
Filed: 1973-02-01
Abstract: 1468171 2-amino-4-hydroxy-7,8-dihydropteridine-6-carboxaldehydes WELLCOME FOUNDATION Ltd 1 May 1974 [1 Feb 1973] 5186/73 Heading C2C Novel compounds I and their salts in which R 1  and R 2  are C 1-4  alkyl or together with the C atom of the pteridine ring to which they are attached form a C 5-7  cycloalkyl ring are prepared by (1) selective oxidation of the corresponding 6-hydroxymethyl compound or (2) reductive cyclization of a compound III with the addition of a controlled amount of reducing agent to limit the reducing potential of the reaction mixture and separation of the compound I from the hydroxymethyl compound also formed. Compounds I prepared are those in which R 1  = R 2  = Me, Et or n-Pr. Compounds I are useful in the treatment of microbial infections and form with a carrier a pharmaceutical composition which may be administered orally, parenterally, rectally or topically.
Patent GB-556920-A (GB)
Title: Improvements in or relating to selector operating circuits for use in automatic telephone or like systems
IPC: H04Q1/50
Filed: 1942-04-20
Abstract: 556,920. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and BAKER, G. T. April 20, 1942, No. 5217. Drawings to Specification. [Class 40 (iv)] The description is identical with a part of that in Specification 556,922. The claims relate to the circuit arrangements whereby the switches have no individual relays and are all controlled by a circuit at the beginning of the train. Specifications 549,047 and 556,919 also are referred to.
Patent GB-685521-A (GB)
Title: Improvements relating to transport devices for tractor-drawn implements
Inventor: CHAMBERS JOHN MALET
IPC: A01B23/04
Filed: 1948-02-23
Abstract: 685,521. Agricultural implements. FERGUSON, Ltd., H. Feb. 23, 1949 [Feb. 23, 1948]. No. 5234/48. Class 6 (i). A transport device for an implement comprising front and rear articulated parts 1, 2 connected to power-operated draft links 11 of a tractor comprises wheeled jacks 24 for engaging and lifting the rear parts 2 and means for locking the articulated parts so that the implement may be lifted from the front by the power means as a rigid unit. As shown, the invention is applied to a disc harrow as described in Specification 598,056. The front and rear disc gangs are locked by tie-bars 30 interconnecting the axles 29 of the discs. Each jack 24 comprises a bearing part 28 adapted to engage and raise the axle 29 when a stem 22 is raised. Clamp members 32 mounted on a transverse bar are inserted over the stems 22 and hook means on the clamps engage over a transverse front angle member of each rear disc frame.
Patent GB-1263446-A (GB)
Title: A probe assembly for logging units for testing the materials forming the wall of a borehole
Inventor: MEIER VLADIMIR ALEXANDROVICH
IPC: G01V5/08
Filed: 1970-02-04
Abstract: 1,263,446. Borehole logging apparatus. OSOBOE KONSTRUKTORSKOE BJURO (OKB) MINISTERSTVA GEOLOGII SSSR. Feb. 4, 1970, No. 5263/70. Heading G1A. Borehole logging apparatus comprises a probe unit 1 containing a radiation, analyzer head for investigation of the borehole wall rocks and a power supply unit 3, connected to the probe 1, e.g. by a link 6, in such a way that the latter can only move relative to unit 3 in a single plane, the probe unit 1 being urged against the borehole wall by a resilient element e.g. a leaf-spring 9. Electrical connecting cable is attached to or within the link 6 which is pivotally connected at 7 and 8 to the two units, and in an alternative construction Figs. 2, 3 (not shown) is substituted by parallel, armoured cable members hinged at one or more points along their length to allow for relative movement between the units. In another arrangement, Fig. 4 (not shown), a plurality of probe units, each urged against the borehole wall by leaf-springs, are connected by rods as in Fig.1. The radiation analyzer may be a radioisotope source in association with a detector of fluorescent x-rays or y -rays from the rock.
Patent GB-1106854-A (GB)
Title: Improvements in and relating to snare mechanism for drums
Inventor: FURZER WILLIAM HENRY
IPC: G10D13/02
Filed: 1966-02-07
Abstract: 1,106,854. Snare drums. ROSE MORRIS & CO. Ltd. 21 Nov., 1966 [7 Feb., 1966], No. 5313/66. Heading G5J. [Also in Division F2] The tension and pressure on the drum head of snare wires 8 are independently adjustable. The wires are attached to a lever 4 pivoted in U-brackets 2 and the tension is adjusted by a screw 9 with a nut 11 outside the drum. The pressure is provided by rollers 17 adjustable by a screw 24 against a spring 22 through toggle mechanism 12, 13.
Patent GB-1132673-A (GB)
Title: Liquefied gas filter
IPC: B01D46/30
Filed: 1967-02-03
Abstract: 1,132,673. Filter for liquid oxygen. MESSER GRIESHEIM G.m.b.H. 3 Feb., 1967 [4 Feb., 1966], No. 5330/67. Heading B1D. Odoriferous substances are removed from liquefied gases e.g. liquid oxygen by passing through a filter comprising a housing packed with glass or mineral wool, the wool being packed tightly in outer annular chambers 9 and loosely in inner annular chambers 10, the chambers being formed by (perforate separators 3 spaced by their abutting annular walls 5 and disposed on axial shaft 2. The inner chambers 10 are also partly divided by radial ribs (6). Inlet ? 7 and outlet 8 may enter the housing vertically, radially or tangentially.
Patent GB-543931-A (GB)
Title: Improvements in and relating to autogenous heating devices for use in processes of permanent hair waving and curling
IPC: A45D7/06
Filed: 1940-04-28
Abstract: 543,931. Heating by chemical action. KNIBBS, N. V. S. April 28, 1941, No. 5455. [Class 64 (ii)] An autogenous heating pad for use in hair waving employs a mixture of finely divided aluminium and calcium hydroxide which, when moistened with water, produces the required heat without swelling, with evolution of steam, which may be used without an impervious layer between the pad and the hair. The rate of heat evolution may be varied by varying the fineness of division of the aluminium or calcium hydroxide, or their proportions, or the source of the calcium carbonate from which the hydroxide is prepared, or the method of hydration. The rate may also be varied by adding 1-2 per cent. of alkali metal salts, e.g. the chloride. The proportions of the composition may be aluminium 1 part, calcium hydroxide 3-12 parts. Specifications 225,256, [Class 64 (ii)], 428,145, [Group XIV] and 535,509 are referred to.
Patent GB-511944-A (GB)
Title: A truck for lifting and carrying heavy articles
IPC: B62B1/22
Filed: 1938-02-21
Abstract: 511,944. Hand trucks. SHOESMITH, H. W. Feb. 21, 1938, No. 5478. [Class 108 (i)] A truck for lifting and carrying a heavy article comprises two pivoted arms for gripping the article and raising so that a foot on each arm is engaged beneath the article and supports a substantial part of its weight during transport. As shown, the truck comprises a wheeled base 4 carrying pillars 7 supporting arms 8 which can swing around the pillars and are supported by springs 9. The arms 8 are formed with handles 10, rubber gripping members 11, and depending feet 12 having inturned portions 13 which support the load to be lifted after the load has first been gripped by the members 11 and the truck tilted slightly. In order to maintain the gripping action serrated catches 14, Fig. 3, are provided, pivoted at their upper ends to a housing 15 and pressed outwardly by a spring 16, while freely-rotatable rollers 17 extending inwardly from the arms 8 are adapted to run freely over the serrations of the catches 14. Thus, on lifting the load the arms move downwardly over the pillars against the action of the springs 9 and the feet 12 are pressed inwardly against the load owing to the handle ends of the arms 8 being pressed outwardly through the wedge-shaped arrangement of the catches 14.
Patent GB-1260389-A (GB)
Title: Improvements in/or relating to gas treatment apparatus
IPC: B01J8/16
Filed: 1969-02-03
Abstract: 1,260,389. Drying; heating and cooling systems; fluidized bed distribution soles. TUNZINI AMELIORAIR. 3 Feb., 1969 [13 Feb., 1968], No. 5602/69. Headings F4B, F4G and F4U. An apparatus, Fig. 1, for treating a fragmented material M by a gas, comprises a chamber 1 with a horizontally disposed perforated floor 2 supporting the material, a gas forced through the floor from underneath to fluidize and treat the material, a motor 6 to vibrate the floor 2, and walls bounding each perforation 3 which extend downwardly and whose length L is equal to or greater than the amplitude of vibration 2A of the floor and which are in contact with the gas on all sides. In a drying, heating or cooling apparatus the gas is maintained at a high pressure by a pump 4 and is fed below the floor 2 via a heater or cooling apparatus 5. The floor 2 may consist of a plurality of U-shaped parallel bars 11, Fig. 7, spaced apart to provide the perforations 3. The walls bounding the perforations are formed by the downwardly extending wings of the U-shaped bars 11, one wing of which may be slightly extended downwards and provided with a perpendicular extension 16 which underlies the unextended wing of the adjacent bar 11 in order to prevent excessive loss of the material M when the apparatus is inoperative. The perpendicular extension which may be shaped to increase the gas flow velocity may be on either wing but always on the same wing of each bar. The wings on each bar may alternatively be of the same length and the free ends may be slightly inclined towards each other (Fig. 4, not shown). The parallel bars 11 are held in two horizontal slideways (13, Fig. 5, not shown), each bar being provided with spacers (14). Where the bars 11 fit into the slideways (13) they are closed by a further U-shaped member (13). The bars are preferably disposed perpendicularly to the direction of flow D of the material M through the apparatus. Alternatively Fig. 8 (not shown) the floor (2) may be formed from a thin sheet having staggered rows of orifices (3) which have inserted therethrough tubes (18) which are further supported by members (21) connecting rows of tubes together.
Patent GB-1300014-A (GB)
Title: Crimped filaments
Inventor: ELLIOT DAVID ROBERT
IPC: D01F8/14
Filed: 1969-09-23
Abstract: 1300014 Crimped polyester filaments IMPERIAL CHEMICAL INDUSTRIES Ltd 24 Dec 1969 [23 Sept 1969] 5663/71 Divided out of 1290912 Heading B5B The relaxation process of the parent Specification is used to produce a crimped conjugate filament having two polyester components of the same chemical composition but different intrinsic viscosity and birefringence, these properties differing by at least 10% of the lower value and at least 0À005 respectively, the filament having a retraction under load of at least 6%. The polyester components are preferably polyethylene terephthalate.
Patent GB-1375292-A (GB)
IPC: A01G23/04
Filed: 1972-02-07
Abstract: 1375292 Storage of plants PFLANZFRISCH TRANSPORTSACK GmbH 7 Feb 1972 [5 Feb 1971] 5667/72 Heading A2D [Also in Division B8] A packaging material for conveying and storing living plants consists of a double walled waterproof covering consisting of a plastics outer sheet and a pigmented plastics inner sheet, the covering being partially gaspermeable and excluding light to the extent that during natural daytime illumination, a plant enclosed by the covering is exposed to light intensity levels equivalent to natural night-time illumination. The wall thickness of the covering may be 20-400 microns.
Patent GB-669410-A (GB)
Title: Improvements in or relating to electrostatic precipitators
IPC: B03C3/76
Filed: 1949-03-02
Abstract: 669,410. Electrostatic precipitation. STURTEVANT ENGINEERING CO., Ltd., WAGNER, H. W., and GUEILIKMAN, M. March 16, 1950 [March 2, 1949], No. 5700/49. Class 39 (i). In an electrostatic precipitator for removing dust and like impurities from dirty gas, of the kind comprising a discharge electrode and a receiver electrode between which the gas passes, the receiver electrode comprising a plurality of vertical tubes connected together in a group and the discharge electrode coniprising a plurality of vertical wires within the tubes, a plurality of horizontal rods have their inner ends connected to the receiver electrode and pass to the outside of the container through glands, their outer ends being connected to a common base element, and an electric vibrator is mounted on the base element to vibrate the receiver electrode. As shown in Figs. 1 and 2, the receiving electrodes are constituted by earthed vertical tubes 1 of hexagonal section arranged in nine groups on the' plates 6 which are supported by beams 5, in the container 3, the lower ends of the tubes being held together by strengthening bars 7. Each of the groups are welded to a bar 8, the outer groups having rods 9a attached to the bars 8 and passing through glands 10 in the container 3 to the respective bars 11, and the inner groups having rods 9b which pass through glands 10 to the left-hand bar 11, Fig. 2. Each of the bar structures 11 has an electrical vibrator 12 mounted on its outer face and. is supported by flexible suspension links 28, attached to brackets on the wall of the container 3, so that vibrations are not transmitted to the container. The discharge electrodes are constituted by wires 2 which pass coaxially through the tubes 1 and are suspended in six groups from the grids 13a, 13b, the wires being maintained in tension by weights 32. The grids 13a, 13b are at a high potential and are attached to girders 15 slung by means of rods 16 from insulators 17 which are enclosed in a separate compartment 19 of the container, bars 20 provided with vertical rods 21 being mounted on each grid 13a, 13b. Each rod 21 extends through a tubular insulator 22 and is connected by an insulator 23 to a rod 24, the rods 24 being welded to the bar structures 25, which are provided with an electrical vibrator 26 at the centre and the bars 25 being supported by antivibration mountings 30. A number of vanes 31 attached to the rods 21 prevent overheating of the insulators 23. Specifications 593,356 and 593,398 are referred to.
Patent GB-337705-A (GB)
Title: Anchor-socket especially for fastening current-carrying apparatus to switch boards
IPC: F16B37/12
Filed: 1930-02-20
Abstract: 337,705. Hess, G. March 11, 1929, [Convention date]. Screw sockets.-A screw socket for fastening apparatus to switchboards comprises a threaded sleeve 2, with a flange 3, bearing on the switchboard 9. The sleeve 2 has a cylindrical portion 6, with slits 5, adapted to fit the hole 4, and has a conical end 7, shaped to correspond to a thimble 9 screwed into the sleeve. The thimble is screwthreaded for receiving the fastening screw 10 and is provided with a slot 11 for screw-driver. The sleeve is held stationary by a wrench applied to the flats 12 on the flange, while the thimble is screwed in to expand to lower end of the sleeve.
Patent GB-234055-A (GB)
Title: Process of washing or cleaning wool, silk, soiled fabrics and the like fibrous textile materials
IPC: D06L1/20
Filed: 1925-03-02
Abstract: In the washing of wools &c. by means of aqueous solutions or suspensions of detensive agents as described in the parent Specification, either the substantially continuous centrifuging of the liquors of one container or vat for the removal of mud or the substantially continuous centrifuging for the removal of greasy matter or both are supplemented or replaced by any other continuous purifying treatment other than mere settlement with or without chemical reaction.  The purification may comprise filtration, or agitation of the liquor to form a froth containing the grease and part of the mud which is then removed.  The purification is assisted by treatment with a continuous or intermittent electric current to modify the charges on the p  particles of impurity and allow them to agglomerate.  The liquor may be heated prior to the completion of the purification so that it is unnecessary to heat the liquor in the actual washing-bath. Two or more baths containing relatively concentrated suint liquor are used, the liquor in the subsequent baths being more completely cleaned than that in the bath first traversed by the wool.  The liquor of a foul bath may be transferred after purification to a cleaner bath and returned in counter-current to the wool to the bath of origin.  The liquor of the rinsing bath following the suint washing is wholly or partly run to waste. Specifications 240,477, 240,482, 240,499 and 243,360 are referred to.
Patent GB-105271-A (GB)
Title: Improvements in Hypodermic Needle Sockets.
Inventor: HUGHES GIBBARD RICHARD
IPC: A61M5/32
Filed: 1916-04-20
Abstract: 105,271. Hughes, G. R. April 20, 1916. Syringes.-The needle-socket of a hypodermic syringe is cast from a soft alloy, such as typemetal, and the screwed end of the needle is screwed into it after the socket has become cold.
Patent GB-589105-A (GB)
Title: Improvements in or relating to reed-supporting means for looms
IPC: D03D49/62
Filed: 1945-03-08
Abstract: 589,105. Mounting reeds in looms. SOC. ANON. A. SAURER. March 8, 1945, No. 5821. Convention date, March 8, 1944. [Class 142 (iii)] A fast-reed mounting for a loom is characterized in that a holding device consisting mainly of two clamping strips embraces the lower rib of the reed and is so connected to the sley by means of a plurality of fastening members as to be adjustable in a direction perpendicular to the plane of the reed. In the form shown, the holding device comprises a channel-shaped bar 6 and an angle bar 7 secured together by screws 12, the bar 6 being apertured to receive fastening screws 16 supported in slotted projections 4 formed on the sley 2, the screws 16 having internally screwthreaded holes to receive adjusting screws 18 by means of which the position of the holding device, in relation to the sley, can be readily set. The reed cover 31 is adjustably mounted and provided with a wedge-shaped groove 35. In a modification the sley carries a plurality of fastening screws for the holding device, each fastening screw being arranged between two adjusting screws located one above the other.
Patent GB-525487-A (GB)
Title: Improvements in and relating to automatic adjusting devices for the brake shoes of brakes for automobile or other vehicles
IPC: F16D65/56
Filed: 1939-02-22
Abstract: 525,487. Adjusting brakes. GAYTON, H. Feb. 22, 1939, No. 5895. [Class 103 (i)] An adjusting device for brake shoes, comprising rods 3, 4 engaging the ends of the shoes 29, 30 and adapted to be extended from a sleeve 2 within which the rods have screw-threaded engagement and which can be turned to effect the adjustment by a toothed crown wheel 6 having a spindle 5 extending through the back plate 8 and meshed with a pinion 1 on the sleeve is rendered automatically operable by securing to the wheel 6 a ratchet wheel 7 engaged by a pawl 11 carried by an arm 10 pivoted on the spindle 5. the shoes 29, 30 are expanded by a cable 15 connected to the cam lever and the pawl is connected to the end of the cable by a link 14 so that if when the brake is applied there is wear of the friction linings, the wheel 7 is turned by the pawl to extend the rods 3, 4. A plate 20 can be turned about the spindle 5, by a projection 24 to disengage the pawl 11 by a pin 22 to enable the spindle 5 to be turned to reset the shoes.