baber/WOPTO huggingface dataset:
Patent GB-1355602-A (GB)
Title: Device for controlling the selection of mutually-exclusive mech anical functions
IPC: D04B7/00
Filed: 1972-07-28
Abstract: 1355602 Knitting-machines H STOLL G STOLL E STOLL E STOLL J STOLL A STOLL R E STOLL and M STOLL 28 July 1972 [5 Aug 1971] 35296/72 Heading D1C In a flat knitting machine in which a needle bed can be shogged, the selecting motion is transmitted via a device comprising selector members 2 slidable one at a time in a guide 1 and entraining respective switching members 6. The former members are selected by a selector device while the latter are connected to levers for shogging the bed. A series of transverse balls 8 communicate with apertures in the members and are so arranged to permit displacement of one member only to either of two positions. A member 6 is entrained thereby and held by one nose 9 or 10 of a pawl 7 engaging behind a nose 11 or 12 thereof. Member 2 is returned for reselection by spring 13, while the corresponding member 6 is held.
Patent GB-1091424-A (GB)
Title: Process for hydrocracking a petroleum distillate and a catalytic composition
IPC: C10G47/12
Filed: 1965-08-18
Abstract: A petroleum distillate 90% of which boils above 204 DEG  C. is catalytically hydrocracked with hydrogen at a partial pressure between 35 and 700 kgs/sq. cm. and a feed rate of 35.6 to 534 standard cubic metres/100 litres of distillate with liquid hourly space velocity between 0.5 and 10 volume, as liquid, of said distillate per volume of catalytic composition per hour.  The temperature is between 288 DEG  and 510 DEG  C.  The nitrogen content of the feed may be reduced before cracking.  The catalytic component is prepared by compositing a Group VI or VIII metal with the calcined carrier prepared from a gelled mixture of a freshly prepared, metallicion free silica sol obtained by ion-exchange of water glass and an aqueous solution yielding aluminium cations.ALSO:A calcined carrier is prepared from a gelled mixture of freshly-prepared, metal-ion-free, silica sol obtained by ion-exchange of water-glass and an aqueous solution containing aluminium cations.  Preferably the carrier is composited with metals, metal oxides or sulphides of Group VI or VIII of the Periodic Table.  Physical characteristics of the carrier, viz pore and particle size, are given.
Patent GB-363484-A (GB)
Title: Improvements in and relating to the regulation of rotary compressors
IPC: F04D27/02
Filed: 1930-11-24
Abstract: 363,484. Regulating centrifugal compressers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and MORRIS, P. D., Tarnside, Bilton Road, Rugby. Nov. 24, 1930, No. 35396. [Class 110 (i).] Regulating mechanism for a rotary compresser includes a device responsive to the delivery pressure which adjusts the setting o f the speed governor of the prime mover driving the compresser. The governor 1, Fig. 1, operates the lever 2 to control the supply of steam to the motor, and it is provided with a regulating spring 3, the tension of which can be varied by a nut 4 on a threaded sleeve 5 operated through rack gearing 20 and worm gearing 7 by a servomotor 15. Flexible metallic bellows 8 are connected to the compresser delivery and cause the rise and fall of a connecting-rod 10 and pilot valve 11. The valve has a sleeve 12 which is returned to the neutral position to stop the supply of fluid to the servo motor when the regulating movement is completed and the setting of the governor is varied. Specification 245,797, [Class 110 (i), Centrifugal and screw fans &c.], is referred to.
Patent GB-448558-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1934-12-10
Abstract: 448,558. Non-return valves. BENDIX AVIATION CORPORATION, 105, West Adams Street, Chicago, U.S.A. Dec. 10, 1934, No. 35429. Convention date, Dec. 11, 1933. [Class 135. [See also Group XXVII] A ball valve 124 is retained in its seating by bending inwards a cut section 137 of the rim 135 of its seat member.
Patent GB-342810-A (GB)
Title: Improvements in or relating to combined stop valves and steam separators
IPC: F22B37/26
Filed: 1929-11-20
Abstract: 342,810. Steam separators. SCHMIDT, K., 40, Bayreutherstrasse, Dresden, Germany. Nov. 20, 1929, No. 35508. Convention date, Nov. 24, 1928. [Class 123 (ii).] The seating of a steam shut-off valve K is formed with an annular rib C projecting towards the steam flow to divide off the water surrounding the steam and direct it into a collector A or into the valve casing, from which it is drained off through a small opening.
Patent GB-349532-A (GB)
Title: Improved arrangement for sharpening and setting the blades of safety razors and the like
IPC: B24D15/08
Filed: 1929-11-20
Abstract: 349,532. Sharpening safety razors &c. DUPEYRON, A., 24, Rue du Capitaine Ferber, Paris. Nov. 20, 1929, No. 35520. Convention date, Nov. 23, 1928. Void [Published under Sect. 91 of the Acts]. [Class 60.] A device for sharpening safety razors &c. consists of a base 1 provided with slides 3 for a carriage 4 on which is mounted a blade holder 5, oscillatably supported by pivots 6. The holder 5 has cut out projections 7, the blade 9 being placed on the holder with the end holes therein over the projections 7 and slid endwise, so that the blade moves under the projections, by a slidable button 11 which engages the centre hole of the blade. One of the pivots 6 has a shoulder 13 engaging a surface 14 of the carriage 4, and a blade spring 15 fixed to the surface 14 has two conical nipples 16, 17, which exert a turning action on the edge of the holder 5. The other end of the holder has arms 18, 19 which engage a cam 20 with end projections 34, 35, and at right-angles to the arms 18, 19 are two arms 21, adapted to engage a stop 22 at one end of the travel of the carriage 4. The blade is sharpened by a block 26 inclined to the direction of movement of the carriage, and having an upper sharpening surface and a lower setting surface, the block being carried by a pin 27 pivotally mounted in a part 28 formed from the base 1 ; a sliding door 31 in the base allows of the rotation of the block 26. In operation, the carriage is reciprocated along the guides, the projections 34, 35 lifting the blade clear of the sharpening block towards the ends of the strokes, whilst at one end of a stroke the stop 22 engages one of the arms 21 to tilt the blade for operation on the other edge on the return stroke. At the end of the return stroke, the nipples 16, 17 turn the blade to a vertical position, so that on the next stroke, the other side of the blade is treated; a spring-pressed pawl 23 engaging a rack 25 prevents reversal of the movement of the carriage before the end of a stroke. In a modification, the sharpening block is pivotally and interchangeably mounted at its ends in turnedup parts of the base, and may be supported at one end by a square pivot so as to be locked by a spring which holds the squared portion against a surface in the support; in a further modification, the block is locked by a button having indentations engaged by a spring. In order to treat single-edged blades, the means for turning over the blade at the end of a stroke is omitted.
Patent GB-367472-A (GB)
Title: Improvements in and relating to windows, doors and the like
IPC: E06B3/10
Filed: 1930-11-26
Abstract: 367,472. Windows. HURLEY, M. S., 71, Bradford Street, Farnworth, Lancashire. Nov. 26, 1930, No. 35534. [Class 20 (iii).] Relates to means for draining away the water which is driven between the sill or transom and the bottom rail of a sash window or outw a r d l y swinging casement window, French window or door. According to the invention, the sill 7, Figs. 1 and 5, or transome, is formed with a longitudinal groove 9 which communicates with channels 10 leading to the front of the window or door, the back face 12 of the groove, against which the lower rail 8 of the window or door abuts when closed, rising higher than the front face 17. The channels are inclined at different angles relatively to the front face of the sill and mav be either straight or curved. The channels are preferably narrower at the outlet than at the end in the groove. In the form shown in Fig. 5, the front face 17 of the groove is formed on a supplementary sill 11 cast intergal with the sill 17. A projection on this sill 11 co-operates with a groove 16 in the bottom rail 8 and provides an obstacle to the entrance of water. In a modification, the supplementary sill comprises a number of spaced strips which are secured to the sill 7, the spaces between the strips forming the channels 10. Reference has been directed by the Comptroller to Specifications 5948/91, [Class 20, Buildings &c.].
Patent GB-1525743-A (GB)
Title: Magnetic-tape recording and/or play back apparatus
IPC: G11B15/02
Filed: 1975-08-29
Abstract: 1525743 Tape recorder PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 Aug 1975 [2 Sept 1974] 35728/75 Heading G5R A tape recorder is automatically switched off when the cessation of tape movement is detected. When tape stoppage detection device 16 detects the stoppage of tape it moves a sensing lever 45 clockwise whereby a drive wheel 2 mounted on a plate 25 which pivots with the lever is moved into engagement with the periphery of fly wheel 13. The drive wheel operates via speed reduction gearing to drive a reel (32) winding up a cord 27. When an enlarged portion 31 on the cord reaches slide 5 locking the control buttons 3, &c. of the recorder it moves the slide to unlock the operated button thereby switching off the recorder. As button 3 moves outwards to its off position it moves a pin 40 which restores the plate 25 to its initial position and moves a member 64 which raises the sensing lever 45 from the detecting device 16.
Patent GB-522220-A (GB)
Title: Improvements in artificial leather-like products and their production
IPC: B29C37/00
Filed: 1938-12-08
Abstract: 522,220. Agglutinated fibrous materials. FREUDENBERG, W., FREUDENBERG, H., FREUDENBERG, O., and FREUDENBERG, R. Dec. 8, 1938, Nos. 35876 and 35877. Convention dates, Dec. 23, 1937 and.July 30, 1938. [Class 140] Artificial leather-like sheets made by impregnating fibre fleeces with solid rubber or rubberlike polymers of unsaturated organic compounds or aqueous dispersions or emulsions thereof are improved by treating them with bases, e.g., solutions of caustic soda or caustic potash, ammonia or sodium carbonate, without tension, until the fibres are swollen and thereafter removing the bases, e.g., by washing with water or by neutralizing and washing out the salts formed. The fleeces may comprise cotton, bast fibres, wood fibres, hair, skin or leather fibres, ramie, wool, silk, artificial silk or staple fibres. They may be disintegrated by boiling, treated with oxidizing or reducing agents, or impregnated with wetting agents before carding. Rubber-like polymers include polyvinyl and polyacrylic compounds, polystyrene, mixed polymers of vinyl chloride with vinyl esters, butadiene and isoprene polymers. The impregnated fleeces may be dried and pressed before treatment with the bases. The final product may be vulcanized. Before treatment with the swelling agent, the fleece may be partly coated, e.g., as a pattern, with a resist which may comprise synthetic resins, proteins or aluminium salts. A further 'treatment with the binding agent may be given after the swelling treatment. Specifications 488,394, 505,794, and 505,801 are referred to. The Specification as open to inspection under Sect. 91 comprises the use of organic bases such as amines or heterocyclic bases. This subjectmatter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 15253/07, [Class 140].
Patent GB-1434288-A (GB)
Title: Separation and purification of gold
IPC: C22B3/06
Filed: 1973-07-27
Abstract: 1434288 Recovering and purifying gold SWARSAB MINING EXPLORATION &  DEVELOPMENT CO (PTY) Ltd 27 July 1973 [10 Aug 1972] 35944/73 Heading C7D A solution of gold plus one or more platinum group metals containing HNO 3  is evaporated to dryness at least once, the residue is redissolved in HNO 3 , H 2 O 2  is added to the solution which is then boiled to obtain gold. The final filtrate may be boiled with formic acid to precipitate the remaining gold, which can then be recirculated to a suitable prior step.
Patent GB-898756-A (GB)
Title: Improvements relating to dust bins, buckets or like containers
Inventor: SHAW THOMAS HINGLEY
IPC: B65D25/24
Filed: 1959-10-24
Abstract: 898,756. Dust bins. BOWER LANE MANUFACTURING CO. Ltd. Oct. 24, 1960 [Oct. 24, 1959], No. 36081/59. Class 26. [Also in Group XVII] A dust bin, bucket or like container has a bottom b attached to the body a by means of a flange b<SP>1</SP> and an external fold-over lap joint a<SP>1</SP>, b<SP>2</SP>, a hoop or tube c of J section driven on to the body a over the lap joint a<SP>1</SP>, b<SP>2</SP> where shown and reinforced by an inner tube d, preferably of heavier gauge metal, abutting against the flange b<SP>1</SP> at its upper extremity. The hoop c may bear against an annular bulge in the body a, or the part c<SP>1</SP> of the hoop may be rolled or swaged with the body a for securing thereto by a flat or curved union above the joint a<SP>1</SP>, b<SP>2</SP>.
Patent GB-1151087-A (GB)
Title: Firing Circuit for Series-Connected Controlled Semi-Conductor Rectifiers.
IPC: H02M1/096
Filed: 1966-08-12
Abstract: 1,151,087. Converting. ALLM€NNA SVENSKA ELEKTRISKA A.B. 12 Aug., 1966 [13 Oct., 1965; 21 Oct., 1965], No. 36117/66. Heading H2F. Series connected thyristors are fired simultaneously by energy taken from the voltage divider through a controlled semi-conductor element. In Fig. 1, one thyristor 1, 2, from each of two series chains of thyristors connected in parallel, receives a firing pulse from the capacitor 7 through a light-controlled thyristor, transistor or diode 9. The capacitor 7 is charged through a diode 8 from the voltage divider 3, 4, 6, 5, 15 arranged as shown. Charging occurs only during the forward biased non- conducting period of the thyristors. Conventional current limiting resistances or inductances 10, 11 and voltage limiting Zener diodes, diodes or non-linear resistances 12, 13 are provided. Thr resistance 14 ensures that the trigger electrodes are negatively biased during the reverse biased half-cycles of the thyristors. Different voltage divider constructions may be used (Fig. 2, not shown). The capacitor 7 may be charged through a transformer 25 (Fig. 3). In order to charge the capacitor 7 during the reverse half-cycle the polarity of transformer 25 is reversed. Preferably a step-down transformer is used to match the firing signal to the thyristor. A full wave rectifier may replace diode 8 (Fig. 4, not shown). Reference has been directed by the Comptroller to Specification 1,060,352.
Patent GB-1420810-A (GB)
Title: Treating plants
IPC: A01G7/06
Filed: 1973-07-27
Abstract: 1420810 Treating trees J R C ELLIOTT and J F L FLOYD [trading as AERODEX] 27 July 1973 36152/73 Heading A1E Liquid from a pressurised container 1 such as an aerosol dispenser is injected into a hole 4 in a tree through a pipe 3 under the control of a valve 2. The pipe has a conical surface 3a co-operating with a collar 6 which expands to maintain the pipe in the tree. The valve is spring biassed to close and the container is secured to the tree by a strap 7 with sufficient force to hold the valve open.
Patent GB-896082-A (GB)
Title: Anti foaming and packaging material
IPC: G01N31/00
Filed: 1957-11-20
Abstract: Polyethylene added to the digestion mixture reduces foaming in Kjeldahl-type nitrogen determinations.  The polyethylene may be in the form of an envelope containing copper, mercury selenium or their compounds, or alkali metal sulphate catalysts.
Patent GB-326244-A (GB)
Title: Improvements in paper files or clips
IPC: B42F9/00
Filed: 1928-12-10
Abstract: 326,244. Walker, Ltd., A. E., and Hyder, H. Dec. 10, 1928. Clips. - A paper file or clip comprises a spring clamping-member d having hinged thereto a handle member f which can be used to open the clip either bv means of an upward pull or by using the member d as a lever having as fulcrum a projecting part f<2> adapted to rest on the base-plate a. The member f is substantially triangular in shape and is beaded at its wide edge to engage the cross-member d<2> of the clamping- member d. Transverse arms d<1> on the ends of the part d<2> provided with helical-spring parts e the free ends of which fit into sockets c in the base a complete the clamping member.
Patent GB-865276-A (GB)
Title: Improvements in or relating to trenching machines
Inventor: LEWIN JACOB
IPC: E02F5/12
Filed: 1958-11-13
Abstract: 865,276. Excavating earth. METROPOLITAN WATER BOARD. Nov. 12, 1959 [Nov. 13, 1958], No. 36545/58. Class 68(1). A trenching machine, more particularly for re-sanding operations in filter beds involving the removal of some or all of the old sand, replacing with clean sand and covering the clean sand with old sand, comprises a track-driven chassis and means on the chassis for excavating a trench to a predetermined depth and discharging it to one or other side of the path of the machine. Preferably the trench width is at least two thirds of the overall track width. As shown, the tracks 11 carry a chassis on which is mounted a power unit 12, a boom 13 mounting an endless excavator bucket assembly 28, 29, swinging links 14, 15 actuated by a lever 21 for regulating the vertical position of the boom 13, a shoot 32 receiving sand for the inverting buckets and depositing it on a conveyer 31 which tips it into a shoot 39. Dumper trucks may receive the sand from the shoot 39, or an angled shoot 40 may be attached to the shoot in one or other of two positions by a bayonet joint attachment, so that the sand may be deposited to one or other side of the machine. The lever 21 is connected by a rod 18 to links 16 integral with the links 14, and springs 17 counterbalance the weight of the boom. The operator's seat 42 is reversible, and the controls are duplicated for the two operating positions. In use, a trench is excavated and the sand deposited to one side of the path of the machine, the trench is filled with clean sand from store, and is covered by the sand deposited during the excavation of the next trench. If all the old sand is to be removed, it is taken away from the shoot 39 by dumper trucks, successive trenches being spaced at a distance slightly less than the width of the buckets 29, so that the trucks may run in the bottom of the trenches to remove the sand between the trenches.
Patent GB-631811-A (GB)
Title: Improvements in or relating to electron discharge tubes and other devices having evacuated envelopes and to vacuum-tight joints therefor
IPC: H01J5/30
Filed: 1946-12-11
Abstract: 631,811. Discharge apparatus. SOC. FRANCAISE RADIO-ELECTRIQUE. Dec. 11, 1946, Nos. 36643 and 36644.. Convention dates, Dec. 11, 1945, and Dec. 14, 1945. [Class 39 (i)] [Also in Groups XXVI and XXVIII] A method of assembling and sealing the component parts of an evacuated tube, such as a discharge tube, comprises dressing and polishing to an optical polish the surfaces at which a vacuum-tight joint is to be made, fitting the parts together to form the envelope, evacuating the envelope and covering each pair of edges in contact by a supplementary airtight joint. The Figure shows a discharge tube comprising alternate metal sections A, G, F, and glass sections I, J, K, sealed in this way and provided with water-cooling systems R; The metal sections are connected to the electrodes of the tube. The sections may be assembled inside a bell-jar with one section A spaced apart from the others; the jar is evacuated and A joined to the rest, after which air is admitted to the jar. The joints between sections are backed by further vacuum-tight joints; as the latter need only stand the operating temperature of the tube they may comprise coverings of organic varnish, silicon varnish, or may be rubber joints.
Patent GB-973166-A (GB)
Title: Improvements in or relating to drive means for the rotor blades of rotary wing aircraft and other drive means
IPC: B64C27/02
Filed: 1961-10-12
Abstract: 973,166. Friction gearing. K. H. WALLIS. Oct. 10, 1962 [Oct. 12, 1961], No. 36738/61. Heading F2Q. [Also in Division B7] In a disengageable friction drive designed for slipping on overload, particularly for the rotor blades of an auto-rotating rotary wing aircraft in which power to the blades is cut off during flight, a power shaft 21 is engaged by a friction roller 22 coupled by means not shown with the driven member, the roller 22 being carried by a swinging arm 24 biased by a compression spring 32 which yields an overload. As shown the arm 24 is pivoted to a link 26 which is loaded by a spring 37 and is moved about a fixed pivot 27 by a control cable 34 to engage or disengage the drive, the spring 32 acting between the arm 24 and a washer on a stud 28 passing through the arm and pivoted to the link 26. In a modification the arm carrying the friction roller moves about a fixed pivot and the control cable acts on a spring-loaded stud similar to the stud 28. Specification 925,301 is referred to.
Patent GB-1114205-A (GB)
Title: Improvements in or relating to road-paving machines
IPC: E01C19/48
Filed: 1965-08-27
Abstract: 1,114,205. Road surfacing machines. H. C. W. MAKINGS and W. D. MAKINGS. 9 Nov., 1966 [27 Aug., 1965], No. 36824/65. Heading E1G. In a road surfacing machine having a front hopper 15, from which bitumen or like material is fed by a slat conveyor 16 to an open bottomed transverse spreading device 23, a transverse vibratory tamping device has a screwed plate 29 carried on pivots supported by arms 32 pivotted to the chassis of the machine, the screwed plate 29 being pivotable by hydraulic means 43 which adjusts the angle of attack of the plate in relation to the relative movement of the arms 32 and chassis 2 under the control of a hydraulic valve 56. The thickness of the bitumen layer is pre-set by an adjustment 54 for the pivot of a lever 45 also pivotted on an adjuster 47 carried on an arm 32. Upward movement of the arm 32, by thickening of the layer, opens valve 56 to contract jack 43 and tilt the front edge of the screwed downwards. The control is provided with a feedback system by a Bowden cable 65 between the jack and the movable lever 49, such that the valve 56 is returned to the neutral position before the arms 32 return to their present position. The arms carrying the screed 29, vibrator 36 and double handed screw spreader 28A.B. may be set or lifted for transport by jacks 77. Provision is made for heating the screed 29, for cambering by multiple screeds and for increasing the working width of the machine. The front hopper has sides folded by hydraulic jacks for transport.
Patent GB-363498-A (GB)
Title: Improvements in and relating to adjustable steel pit props and girder arch legs, forthe support of roofs in underground workings
IPC: E21D15/38
Filed: 1930-12-06
Abstract: 363,498. Mine roof supports. RICHARDS, F., 14, Brynheulog Street, Port Talbot, Glamorgan. Dec. 6, 1930, No. 36828. [Class 20 (ii).] A yielding pit-prop or mine arch leg of the type in which a flanged sectionbar is received between clamping bars pressed on to the section-bar bv an encircling clamp, has the flanges 4 of the section-bar tapered, from the web outwardly, and the clamping bars 2 have their flanges 3 tapered at the same angle and spaces are left between the webs of the clamping bar and the section-bar so that the sliding friction occurs between the flanges only. An encircling clamp comprises two angle-shaped bolts 5 which bear on the flanges of the section-bar 1 and prevent spreading. The shoe 7 of the leg may be omitted and the lower ends of the clamping bars are then connected by an adjusting bolt so that the friction may be increased as sliding occurs. The frictional resistance may be increased by the insertion of friction pads between the sliding surfaces.