baber/WOPTO huggingface dataset:
Patent GB-492841-A (GB)
Title: Improvements in vehicle suspension systems
IPC: B60G23/00
Filed: 1937-07-02
Abstract: 492,841. Pneumatic tyres. BENDIXWESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. July 2, 1937, No. 18420. Convention date, July 3, 1936. [Class 144 (ii)] In order to cushion the shocks imparted to a motor vehicle due to irregularities in the road surface, means are provided whereby the resiliency of the tyres is automatically controlled by inertia-operated means, in response to the vertical accelerations and decelerations imparted to the frame of the vehicle, on the wheels of which the tyres are mounted.' Each tyre 5 is in connection, through conduits 8, 11, with a valve mechanism 7 incorporating two spring-loaded valves 17, 18, which respectively put the tyre into communication with the atmosphere, and a source of highpressure air through a conduit 26, and a diaphragm 20 which is connected to a vertical spindle 32 carrying an inertia weight 30 which may oscillate under the constraint of a spring 23. The upper end of the spindle 32 is in contact with a member 19, which bears against the valves 17, 18. Variations of pressure within the tyre and vertical oscillations of the vehicle frame result in movements of the member 19 which operates the valves 17, 18, to maintain a substantially constant pressure within the tyre. Means are also provided whereby the pressure in the outside tyres is increased when the vehicle travels in a curved path. A pivotally mounted inertia weight 38, Fig. 3, is mounted between two similar valve units 36, 37, each of which is in communication with the high-pressure air supply 33 and the valve units 7, by conduits 56, 47, respectively. Movement of the weight 38 by centrifugal action, when the vehicle turns, causes a plunger 54 to move horizontally, thereby closing an exhaust valve 50 and opening a spring-loaded intake valve 49 to admit air from the reservoir 33 to the valve chamber 46. The pressure of the air is transmitted by the conduit 47 to the underside of the diaphragm 20 of the valve unit 7, to open the inlet valve 18 and allow air from the reservoir 33 to pass into the tyres.
Patent GB-566496-A (GB)
Title: Improvements in and relating to tractors
IPC: B62D49/00
Filed: 1942-12-29
Abstract: 566,496. Reachers. BERNHARD, O. Dec. 29, 1942, No. 18449. [Class 61 (ii)] [Also in Group XXXI] A tractor comprises a frame 1 carrying the engine 3 and gear-box 4, driving wheels 10, 11 connected to the frame by coil or other suspension springs 13, 14, and a transmission and differential assembly 5, 6 driving the wheels through secondary transmissions 23 affording alternative gear ratios suitable for slow speeds on the land or comparatively high speeds on' roads. In the construction shown, the differential gear 6 drives the road wheels through chain gearing 23 enclosed by a cover 26 and bevel gearing enclosed by a cover 27. The chain gearing may provide alternative gear ratios as described in Specification 538,401, [Group XXXI], the chain wheels 24 and 25 being of different sizes and readily interchangeable. Preferably, each chain-wheel is coupled to its shaft by a fine-toothed claw coupling 42, Fig. 3, and is secured by a nut 41 so as to be readily removable. After the nuts have been removed, the two chain wheels and the chain may be removed and replaced as a unit by means of the tool 52, Fig. 4, having a central pin 50 adapted to fit in a socket 51 on the plate 22 carrying the chain wheels, and two end pins 53, 54 adapted to receive the chain wheels as they are slid off their shafts. When the chain wheels and chain are thus carried by the tool, the latter is swung through 108 degrees about the pin 50 and the chain wheels are replaced in their interchanged positions on the shafts 40. Alternatively, separate chain wheels may be used to change the gear ratio. The driving wheels are mounted on an axle structure 28 secured to side plates 22 which carry the secondary transmission gearing and are fixed to extensions 8, 9 of the differential housing 6 having a forward extension 5 connected by a universal joint 7 to the frame 1. The axle 28 is provided with lugs 29, 30 for the coil springs 13, 14 supporting the rear end of the frame. The wheels 10, 11 are independently driven through the differential gear 6 and the separate trains of chain and bevel gearing, but may be locked together by means of a clutch 33, when desired. The draw-bar 46 for implements &c. is pivoted at 48 to the casing 6 forward of the driving wheels to lessen the tendency of the tractor to rear. In a modification, Fig. 5 (not shown), the driving wheels are mounted on a dead axle and two trains of chain gearing are used to drive each wheel instead of chain and bevel gear trains. The road wheels may be provided with endless tracks. '
Patent GB-167748-A (GB)
Title: Improvements in carrotting fur and hair
IPC: D01C3/00
Filed: 1921-07-07
Abstract: 167,748. Soc. du Feutre. Aug. 12, 1920, [Convention date]. Furs and furriery.-A process for carrotting fur and hair consists in subjecting the skins to the action of a solution of alkali metal or alkaline earth metal sulphides; for example, by brushing them over with a solution of sodium monosulphide of a strength not over 4 per cent; and allowing the skins to dry in the presence of air, thereby causing oxidation of the sulphide solution and checking its destructive action upon the hair. The skins are not attacked and may be tanned after treatment by usual methods for removal of the hair. The hair may be felted immediately after removal.
Patent GB-261450-A (GB)
Title: Method and apparatus for avoiding shock chill in chilling and separating substances
IPC: C10G73/06
Filed: 1925-07-20
Abstract: 261,450. Gill, H. A., (Sharples Specialty Co.). July 20, 1925. Paraffin wax, extracting; separating liquid from solid fats.-In the cooling of liquids containing substances precipitable as discontinuous precipitates or discrete particles as distinct from crystallizable paraffin wax or the like, the cooling is made gradual and uniform by maintaining the difference between the temperature of the liquid treated and that of the cooling medium substantially constant and never more than a small fraction of the total cooling to be effected. For example, in the separation of amorphous paraffin from mineral oil or of stearine from vegetable oils, the oil initially at about 70‹ F. is agitated in a tank 13 provided with a cooling coil 14 preferably arranged so as to set up connection currents and thus prevent settling of the wax or stearine. Brine is circulated through the pipes 17, 14, 15 and a pump 16, and is maintained about 10‹ F. below the temperature of the oil by the injection into the circuit of regulated amount of brine at -20‹ F. through the pipe 18 and the corresponding removal of used brine through the pipe 20 to the tank 9. The brine in tank 9 is maintained at -20‹ F. by circulation through pipe 10, pump 11, pipe 12, a tank 4 containing coils 6 through which liquid ammonia passes to and from a refrigerating element 1, and a return pipe 7. The fully cooled oil is then passed to a centrifuge 23. In a further example 2 parts by volume of cylinder stock are heated to 100‹ F. with 3 parts by volume of gasoline, chilled through 48 hours to -10‹ F., and centrifuged. Specification 166,031 is referred to.
Patent GB-658014-A (GB)
Title: Improvements in or relating to automatic lubricating devices
IPC: F16N7/18
Filed: 1949-07-13
Abstract: 658,014. Oscillating-cylinder pumps. FISCHER, T. July 13, 1949, No. 18531. Convention date, July 13, 1948. [Class 102(i)] [Also in Group XXXIV] An oscillating-cylinder pump comprising a cylinder 11 secured to a pivot 10, and piston 12 which is articulated to crank pin 9 by means of a connecting rod 13 is lubricated by oil scraped from a gear wheel 5 by a scraper 21 and fed through a tube 18 to an outlet 19. The outlet 19 is arranged to be out of the centre line of the crank shaft and the journal 10 of the cylinder 11. In the centre positions of the crank, oil enters a cup shaped cavity in the head 23 for lubrication of the pin 9, and as the crank 8 rotates, the oil drips past the head 23 and lubricates the piston 12, Fig. 3. In the extreme lateral position of the crank, the lubricant falls into a passage 14 and lubricates the pivot 10.
Patent GB-530534-A (GB)
Title: Improvements in internal combustion engines
IPC: F02F3/00
Filed: 1939-06-27
Abstract: 530,534. Pistons. KAMMER, G. S. June 27, 1939, No. 18630. [Class 122 (i)] In a composite piston for internal-combustion engines, a space between the piston body and a heat-resisting crown is partly filled with fireclay, which is in contact at least with the crown. The crown 9 of heat-resisting steel is backed with a layer 12 of fireclay, and the space between this and the piston body 1, which may be of a light alloy, is filled with tightly packed asbestos 13. The crown is secured to the body by a central threaded boss 10, or its periphery may be' threaded and screwed into the body. An L-shaped ring 14 is gripped between the crown and the body to prevent the hot gases from impinging cn the piston rings 5. To prevent the absorption of air from the combustion chamber, the pores of the fireclay may be filled by holding it in a sooty flame.
Patent GB-205163-A (GB)
Title: Improvements in loose leaf binders
IPC: B42F13/02
Filed: 1922-07-07
Abstract: 205,163. Johnson, H. N. July 7, 1922. Flexible-band files; covers. - In a loose-leaf binder of the thong type, each thong passes through a slot in the adjustable clamping-bar and extends horizontally at right angles thereto under a bridge plate spaced above the clamping-bar, the bridge plate or a locking-device carried thereby being adapted to engage the thong and retain it in any position to which it is adjusted. In one form, Figs. 1 and 2, the bridge plate 7 is situated over the slot 6 in the clamping-bar 2 and has mounted in it a screw 9 carrying a pressure plate 11 which engages the thong 4 to secure it. The pressure plate may be concentric with the screw 9 or may be chamfered at one edge. Recesses 13 are provided in the upper cover 1 to receive the bridge plates 7 and the ends of the screws 9 so as to allow the cover to fold down down flat. In a second form, Fig. 5, two slots 22 are provided in the upper clamping-bar 19, the strip 24 adjacent the outer slot being bent upwardly to form a bridge plate under which the thong 23 is passed so as to be held frictionally. One end of each thong is secured to the fixed clamping-bar by being passed through a slot therein and riveted thereto or a metal wedge is driven in at the back edge of the slot. The free ends of the thongs may be looped and provided with sliding adjusting-buckles. A pocket may be provided in the cover to receive a key for operating the screws 9.
Patent GB-747719-A (GB)
Title: An implement raising and lowering attachment for agricultural tractors
IPC: A01B63/10
Filed: 1952-07-23
Abstract: 747,719. Tractor power lift mechanisms. EVE, H. A., and CHEESEWRIGHT, S. G. July 23, 1953 [July 23, 1952], No. 18653/52. Class 79 (1). An implement raising and lowering attachment for a tractor comprises a hydraulic ram 9 mounted on a frame 2 attached to a tractor, a transverse shaft 5 being provided with a pair of quadrant plates 13 formed with slots 12 which engage a pin 11 mounted on the pull rod 8 of the ram 9. The ends of the shaft are fitted with lift arms 6 for attachment to two members of a three-point linkage, the third member being attached to brackets 14 on the frame 2. The slots 12 allow an implement to lift and float according to variations in ground level. A cover 18 is mounted on the frame and is provided with holes for the attachment of a tractor.
Patent GB-746807-A (GB)
Title: Pipe connection
IPC: F16L37/23
Filed: 1954-06-25
Abstract: 746,807. Pipe couplings. CARRET, L. June 25, 1954 [April 2, 1954], No. 18664/54. Class 99(1). In a coupling of the kind in which balls 4 carried by a socket 2 engage an annular groove 19 in a spigot 12 under the action of a sleeve 9 slidable on the socket, the spigot engages in the base of the socket a sealing ring 31 having partly embedded therein a reinforcing coiled spring 32, and the socket houses a spring- loaded valve 28 which is adapted to be lifted from its seat 30 by the engagement of the spigot with the flat stem 29 of the valve.
Patent GB-701789-A (GB)
Title: Process for the production of compounds containing an -nh group from carboxylic acids and organic carbonyl compounds
Filed: 1950-07-26
Abstract: A compound containing an -NH-group is obtained from a carboxylic acid or an organic carbonyl compound by introducing an alkali metal azide into concentrated sulphuric acid and then adding the carboxylic acid or carbonyl compound thereto, the reaction temperature being controlled by the rate of addition and by cooling.  The invention also comprises a continuous process for the production of a compound containing an -NH-group from a carboxylic acid or organic carbonyl compound by dissolving alkali metal azide in concentrated sulphuric acid, dissolving the carboxylic acid or carbonyl compound in a solvent therefor, and feeding the azide-sulphuric acid mixture and the carboxylic acid or carbonyl solution into a reaction vessel or into a plurality of reaction vessels, the overflow from one reaction vessel flowing into another reaction vessel or vessels.  The sulphuric acid to which the alkali metal azide is added may be covered with a layer of an organic solvent for hydrazoic acid, e.g. chloroform, benzene, trichlorethylene, or methylene chloride.  The carboxylic acid used may be a dicarboxylic acid and the latter may be converted to an amino-monocarboxylic acid by employing one mol. of hydrazoic acid for each mol. of the dicarboxylic acid.  In examples: (1) sodium azide is introduced at a temperature not exceeding 10 DEG C. into concentrated sulphuric acid covered with a layer of methylene chloride and adipic acid added to the mixture with cooling and the mixture worked up to yield d -amino-m -valeric acid, some tetramethylene diamine being also formed; (2) sodium azide is dissolved in concentrated sulphuric acid covered with a layer of methylene chloride and sebacic acid then introduced at 25-30 DEG C., the mixture being then diluted with water and worked up to yield octamethylene diamine; (3) heptadecyl amine is obtained by forming a solution of sodium azide in concentrated sulphuric acid and then covering the solution with a layer of stearic acid in methylene chloride and cooling to 20-25 DEG C., the mixture being worked up to precipitate the amine as sulphate; (4) anthraquinone is added to a cooled mixture of sodium azide in concentrated sulphuric acid and the mixture worked up to yield the lactam of 2-(2-aminobenzoyl)-benzoic acid.
Patent GB-201376-A (GB)
Title: A mechanical chain lubricator for cycles, motors and the like
IPC: B62J31/00
Filed: 1923-04-07
Abstract: 201,376. Prentice, J. D. April 7, 1923. Brushing - apparatus. - A lubricator for the chains of cycles, motor-vehicles, and the like comprises a cylindrical container 2 for lubricant mounted on the frame of the machine by a lug 9 and carrying a brush 3 at its lower end by which the lubricant is supplied to the chain, the supply of lubricant being controlled by a screw-down conical valve 5. The brush is screwed on to a nipple 4 inserted in the closed end of the container. The valve screws into the nipple above the valve seat 8 and its stem 6 protrudes through a removable cap 7 at the open end of the container. The container may be filled with lubricant by raising the cap 7 without affecting the adjustment of the valve. The valve stem is grooved at 10 to allow lubricant to reach the brush.
Patent GB-731495-A (GB)
Title: Heterocyclic ether-sulphones
IPC: C07D327/02
Filed: 1953-07-06
Abstract: The invention comprises heterocyclic ethersulphones of the general formula <FORM:0731495/IV (b)/1> in which R stands for a methylene, ethylene or o-arylene group and R1 for a benzene or naphthalene series radical bearing an OH group in p-position to the ring oxygen atom.  They are prepared by reacting in an aqueous acid medium 1,4-benzoquinone, 1,4-naphthquinone or a substitution product thereof having at least one o-position free with respect to the =CO groups with an organic sulphinic acid containing in the organic part of the molecule a group capable of reacting as an anion; the addition product in weakly acid or alkaline solution, if necessary with heating under ordinary or increased pressure, is then allowed to stand until ring-formation has taken place.  In examples (1) benzoquinone is added to chloromethane sulphinic acid in aqueous hydrochloric acid, heated to 70 DEG  C. and rendered alkaline whereupon the compound <FORM:0731495/IV (b)/2> separates; the product may be nitrated and reduced to yield the compound <FORM:0731495/IV (b)/3> (2) 2-chloroethane sulphinic acid is similarly condensed with benzoquinone to give the compound <FORM:0731495/IV (b)/4> (3) 2,5-dichlorobenzene sulphinic acid is condensed with benzoquinone to give the compound <FORM:0731495/IV (b)/5> (4) chloromethane sulphinic acid is condensed with 1,4-naphthoquinone to give the compound <FORM:0731495/IV (b)/6> (5) 2-chloro-5-nitrobenzene sulphinic acid is condensed with benzophenone to give the compound <FORM:0731495/IV (b)/7> which may then be reduced to the corresponding amino compound; (6) sodium 2-acetoxyethane sulphinate is similarly condensed with benzoquinone to give the same compound as in (2) above; and (7) 4,41-dichlorodiphenyl-3,31-disulphinic acid (obtained by reducing 4,41-dichloro diphenyl - 3,31 - disulphochloride with sodium sulphite solution) is condensed with benzoquinone to give the compound <FORM:0731495/IV (b)/8>
Patent GB-874358-A (GB)
Title: Improvements in and relating to foldable tables
IPC: A47B31/04
Filed: 1960-05-27
Abstract: 874,358. Folding tables: castors. DRABERT, F., DRABERT, E., and DRABERT, F., [trading as DRABERT SOHNE, F.]. May 27, 1960 [Feb. 18, 1960], No. 18790/60. Classes 52(1) and 52(3). A folding table has one or more surfaces divided longitudinally into halves 1 pivoted to the four uprights 3, 4 and by levers to the middle columns 2. A cranked yoke 5 supports the uppermost surface in the unfolded position and connects the two middle columns 2, the cranked yoke 6 lying under the lowermost surface has ends 6<SP>1</SP> telescoping into the columns 2. The side rails 12 are removably secured to the ends of the uprights 3, 4 and the resilient wires 14 pass through holes in the columns 2 to engage the ends 6<SP>1</SP> to prevent unintentional folding of the table. The table may have removable or fixed castors 9 which may be locked against rotation by a horizontally pivoted lever A engaging the fixed vertical trunnion; a device for locking the castor wheel, may also be provided.
Patent GB-925458-A (GB)
Title: Improvements in and relating to the hydrogenation of nitroparaffins
Filed: 1961-05-24
Abstract: Nitroparaffins are hydrogenated to the corresponding amines by treating a methanolic solution of the nitroparaffin with hydrogen at pressures ranging from 0 to 200 psig. and reaction temperatures ranging from room temperature to 400 DEG C. and in the presence of a carbon-supported palladium or rhodium catalyst.  Starting materials are preferably nitromethane, nitroethane, nitropropane, 1-nitrobutane and other nitroparaffins having up to 8 carbon atoms.  Specification 925,457 is referred to.
Patent GB-1401173-A (GB)
Title: Emulsions
IPC: C09K23/52
Filed: 1971-06-03
Abstract: 1401173 Dispersions IMPERIAL CHEMICAL INDUSTRIES Ltd 19 May 1972 [3 June 1971] 18838/71 Addition to 1211532 Heading G1A [Also in Division B1] A solution of an inorganic precursor is emulsified in a liquid immiscible with the solution in the presence of an emulsifying agent which is a polymeric material employed in the emulsion claimed in Specification 1,211,532, and the emulsion may be used to prepare non- visiculated spherical particles of inorganic material. Examples refer to preparation of particles of aluminium phosphate from an emulsion comprising a methanol or water solution of aluminium chloro-phosphate ethanolate emulsified in white spirit or petrol, and of particles from an emulsion comprising a water solution of guanidine silicate emulsified in petrol. Other examples describe the preparation of visiculated aluminium phosphate particles using emulsions as above with a disperse phase comprising petrol emulsified in an aqueous solution of aluminium chlorophosphate ethanolate.
Patent GB-1491396-A (GB)
Title: Preparation of carbonic esters
IPC: C07C68/00
Filed: 1976-05-07
Abstract: 1491396 Carbonic acid esters ROHM GmbH 7 May 1976 [9 May 1975] 18899/76 Heading C2C [Also in Division Cl] Carbonic acid esters of formula wherein R represents a methyl, ethyl or propyl group, are prepared by reacting an alcohol, ROH, with carbon monoxide and oxygen in the presence of a catalyst complex formed from copper-I-chloride with vanadium, chromium, iron, or aluminium trichloride, cobalt-II- chloride or silicon tetrachloride. Further complexes formed during the reaction from these complexes and for example with methanol may also be used. Air may be used as the oxygen source and the process may be continuous.
Patent GB-313971-A (GB)
Title: Improvements in the treatment of cellulose ester materials
IPC: D01F2/28
Filed: 1929-06-20
Abstract: 313,971. British Celanese, Ltd., (Assignees of Whitehead, W., and Dreyfus, C.). June 20, 1928, [Convention date]. Yarns &c., treating with gases and vapours.- Artificial threads, yarns, or the like made of carboxylic acid esters of cellulose, for example cellulose acetate, formate, propionate, or butyrate or mixed materials containing such esters and other materials, for example cotton, silk, wool, linen or regenerated cellulose are saponified by means of gaseous or vaporous saponifying agents, for example ammonia, methylamine, dimethylamine or other volatile organic base. The materials may possess increased tensile strength and greater power for absorbing moisture after such treatment and in spite of the fact that they have undergone considerable saponification, they may not possess any appreciable affinity for cotton dyestuffs, but may retain their affinity for the dispersed insoluble dyestuffs such as the S.R.A. dyestuffs. Complete saponification may however be effected so that the products have more or less the dyeing properties of cellulosic materials. The materials may be treated in any desired form, for example as thread or yarn in hanks or on bobbins or pirns. The gaseous or vaporous saponifying agents should be applied to the material in the presence of water vapour, preferably at a relatively low temperature, for example 25-30‹ C. and the materials should preferably be cleaned before they ane treated. In examples artificial silk skeins of cellulose acetate are treated to remove lubricants and dried. The skeins are conditioned in a normal atmosphere and then suspended in a vessel connected by a pipe line to a second vessel containing a 28 per cent aqueous solution of ammonia. The aqueous ammoniacal vapour is drawn continuously into the vessel containing the skeins, which are taken out and turned every hour. Even when the acetate is saponified to the extent of 56 per cent the materials are still resistant to cotton dyestuffs and the saponified materials possess a pronounced resistance to the delustring action of hot or boiling aqueous media, particularly when the extent of the saponification exceeds 90 per cent. Specifications 313,404, and 340,982, [Group IV], are referred to. Cellulose nitrates.-The Specification as open to inspection under Sect. 91 (3) (a) refers also to the treatment of materials made of or containing inorganic esters of cellulose for example nitrocellulose. This subject-matter does not appear in the Specification as accepted.