baber/WOPTO huggingface dataset:
Patent GB-1482886-A (GB)
Title: Splined couplings
IPC: F16N7/00
Filed: 1975-12-12
Abstract: 1482886 Splined coupling CATERPILLAR TRACTOR CO 12 Dec 1975 [6 Jan 1975] 51069/75 Heading F2U A splined coupling is lubricated by a lubricant flowing from a container 36, the flow being effected by the action of a plunger 54 engaging the container during assembly to effect an opening in the container. As shown, the plunger 54 is mounted in a part 28 so that when the shaft 10 is moved axially into position it lifts a valve 46 to permit the lubricant to flow into the part 28 on to conical slinger walls 34 which direct the lubricant towards the splines 12. In another embodiment, Fig. 2 (not shown), the container is punctured by a spike or knife edge (70).
Patent GB-963403-A (GB)
Title: Improvements in or relating to apparatus for applying a concrete coating to surfaces
IPC: B05B13/04
Filed: 1961-02-28
Abstract: 963,403. Apparatus for applying cement to tunnel roofs. SKANSKA CEMENTGJUTERIET A.B. Feb. 28, 1961 [March 4, 1960], No. 51183/63. Divided out of 963,402. Heading E1S. A cement-spraying nozzle 8, for applying concrete coating to tunnel after blasting of each section, is swingably mounted on a pivot 32 in a holder 33 rotatably supported about the longitudinal axis of a telescopic boom 27, 28 at the free end of the boom by a motor 34. The motor can be swung about a pivot 23 by which it is connected to a vertically movable piston rod 22 of a jack 21, 22, the cylinder 21 of which is connected by articulated linkage 24, 25, 26 to the boom 27, 28, and is rotatable about a vertical axis in a plinth 20 on a platform 5 for an operator. The platform 5 forms part of a jack-actuated parallelogram boom structure mounted on a mobile chassis. Hydraulic motors or jacks 37, 38; 34; 29, 30; 21, 22 control the movements of the boom 27, 28 and the nozzle 8.
Patent GB-1475973-A (GB)
Title: Production of 2,2-methylenebis 4,6-dialkylphenols
IPC: C07C37/11
Filed: 1975-12-16
Abstract: 1475973 Production of 2,2<SP>1</SP>-Methylenebis- (4,6-dialkylphenols) N I INST REZINOVYKH I LATEXNYKH IZDELY and STERLITAMAX OPYT PROMYSH ZAVOD PO PROIZVOD IZOPRENOV KAUCHUKA 16 Dec 1975 51407/75 Heading C2C A 2,2 - methylenebis(4,6 - dialkylphenol) is obtained by reacting a 2,4-dialkylphenol with an acetal in the presence of an acid catalyst at a temperature from 30‹ to 140‹ C., initially the acetal being present in an amount in the range of from 1 to 10 moles per mole of the 2,4-dialkylphenol. The acetal is preferably a methylal, dimethylformal, diethylformal, dimethylacetal or di-isopropyl acetal.
Patent GB-1356524-A (GB)
Title: Process and apparatus for producing wire braids
IPC: D04B1/06
Filed: 1972-11-08
Abstract: 1356524 Braiding SOC EUROPEENNE DE PROPULSION 8 Nov 1972 [20 Jan 1972] 51464/72 Headings D1C and D1K A three dimensional braid is made on apparatus in which the ends of a plurality of wires 28 are attached to a support 29 to form a' square array, a support frame supporting parallel movable bars 14 is attached to the other ends of alternate rows of wires and the ends of the intervening rows of wires are attached to movable members 25 independently movable perpendicular to the lengths of bars 14. Bars 14 have teeth 23 to which the wires are attached while the other wires are attached to nipples 25 held between the teeth. Bars 14 alternately have slots 15 and holes 16 at the left hand and right hand ends and are connected by pins 17 which lie in the holes and slots. These are each connected to a yoke 19 so that alternate bars may be moved in opposite directions. Nipples 25 may be moved transversely of bars 14 by push rods 4 carried in side plates. To form the fabric, alternate bars 14 are moved two spaces in opposite directions, the nipples 25 are pushed four spaces in one direction, the bars 14 are returned to their original positions and the nipples 25 are returned to their original positions. This sequence is repeated. Combs such as 32 can be used to ensure a uniform structure. The braid may be used impregnated to form a composite whose wire content may be 70% by volume and can be used for hovercraft skirts and compressor blades.
Patent GB-1368246-A (GB)
Title: Pyrotechnic devices
IPC: F42B4/06
Filed: 1970-10-29
Abstract: 1368246 Launching rockets PAINS-WESSEX Ltd 19 Oct 1971 [29 Oct 1970] 51563/70 Heading F3A A hand-launched rocket 4 is releasably retained in a discharge tube 1 by engagement of its nozzle 15 in a member 6 which is softened, melted or consumed by the heat from the combustion of the rocket. To ignite the rocket, a cap 3 is removed and a string 12 actuates a striker mechanism 9 as the cap is withdrawn. A quickmatch 14, ignited by a percussion cap 13, serves to partially ignite the propellant 16 and an annular primer 17.
Patent GB-1531470-A (GB)
Title: Circuit arrangement for adding and subtracting
IPC: G06F7/50
Filed: 1975-12-19
Abstract: 1531470 Adder/subtractor OLYMPIA WERKE AG 19 Dec 1975 [21 Dec 1974] 52176/75 Heading G4A An arrangement for adding and subtracting a pair of BCD numbers includes, for each decimal digit, an adder 23 or 26 and a carry circuit 24 or 27; during addition 6 is added to each decimal digit of one operand by adders 23, 26 as a preliminary operation whereas during subtraction the ones complement of the subtrahend is formed; in both addition and subtraction decimal 10 is added by adders 23, 26 to the respective result digit if the resulting carry, supplied to carry circuits 24, 27, is 0. During subtraction and addition the carry circuit 24 for the least significant decimal digit is initially set at 1 and 0 respectively. In an alternative arrangement (Fig. 3, not shown) each adder receives its carry input directly from the next less significant adder via an AND gate enabled by timing pulses, the least significant adder receiving its carry input via an AND gate, from the carry circuit of the most significant adder, which carry circuit is initially set to 1 and 0 for subtraction and addition respectively.
Patent GB-989456-A (GB)
Title: Cytosine derivatives and the preparation thereof
IPC: C07D239/46
Filed: 1963-05-01
Abstract: The invention comprises 4-(N-monoacyl)-5-fluoro-cytosines and a process for their preparation comprising acylating 5-fluoro-cytosine. The acylation may be carried out by merely mixing the 5-fluoro-cytosine with the acylating agent at a temperature up to the reflux temperature in the presence of an inert organic solvent, e.g. pyridine or N,N-dimethyl-formamide. A small excess of the acylating agent may be used if desired.
Patent GB-1359670-A (GB)
Title: Power tools
IPC: B23B45/00
Filed: 1971-11-16
Abstract: 1359670 Variable-speed gear ROBERT BOSCH GmbH 16 Nov 1971 [17 Nov 1970] 53061/71 Heading F2D [Also in Division B3] A portable drill comprises an infinitely variable drive including a first cone 24 fitted to a drive shaft 2, a second cone 31 fitted to a driven shaft 3, and a transmission ring 36 engaged with both cones, and displaceable along its axis. A sleeve 17 secured to shaft 2 has a plurality of bores 20 into each one of which a roller 21 is inserted. A number of blocks 28 corresponding to the number of rollers are inserted into a recess in cone 24, and each block has an inclined face which coact with the rollers. Cone 24 is rotatable and longitudinally displaceable on sleeve 17, and cone 31 is non-rotatable but axially displaceable, on shaft 3. A plate spring 35a urges cone 31 to the right, Fig. 1. A device 38 is provided for moving ring 36 along its own axis, and the device comprises a yoke 45, Fig. 2, which carries two pairs of roller bearings 44 which rest on the flat end surface of ring 36, and the yoke is connected to a screwing up arrangement 47, 50, 52, Fig. 1. In operation, shaft 2 is rotated by a motor, cone 31 is urged away from cone 24 by spring 35a and ring 36 frictionally engages cones 24, 31. When a resistance is met by shaft 3 the torque increases, blocks 28 run up on the rollers 21 and cone 24 is moved to the left, Fig. 1, thus causing spring 35a to be compressed. The contact pressure between the cones and ring 36 increases. The drive transmission ratio can be varied by adjusting sleeve 52 by hand, so as to displace friction ring 36. A fixed gearing may be placed on each side of the friction drive Fig. 4 (not shown).
Patent GB-1547129-A (GB)
Title: Semiconductor device inclucing a thermal fuse
IPC: H01L21/60
Filed: 1977-12-29
Abstract: A semiconductor device of this invention comprises a semiconductor chip including a high power consumption portion, an internal lead wire connecting an electrode portion of the semiconductor chip with an external terminal, a soft material adhered to a substantially middle portion of the lead wire, and a moulding material for integrally moulding the semiconductor chip, lead wire, and soft material. Further, the semiconductor device includes a thermal fuse to prevent flaming of the device by cutting off the lead wire within the soft material in case the device is subjected to overcurrent.
Patent GB-1092880-A (GB)
Title: A system for controlling the distance between a main rail car and a satellite rail car used in railway surveying
Inventor: STEWART JOHN KENNETH
IPC: B60L3/00
Filed: 1965-12-24
Abstract: 1,092,880. Automatic control of vehicles. CANADA IRON FOUNDRIES Ltd. Dec. 24, 1965, No. 54813/65. Heading G3R. The distance between a main railcar and a satellite railcar used in railway surveying is maintained at a desired value by automatically controlling the prime mover of the satellite railcar in dependence on the intensity of electromagnetic radiation transmitted between the cars. In the arrangement described for railway track surveying infrared radiation from a main railcar is directed towards a satellite railcar, having a self-contained prime mover and running ahead of the main railcar. Whenever the satellite car gets ahead of the main car by more than a distance corresponding to the setting of a rheostat controlling the intensity of radiation, a photo-cell on the satellite car, responsive to the radiation, causes operation of a thermionic valve relay to cut out the satellite prime mover by hydraulic or electric control. The satellite prime mover is thereafter operated intermittently to maintain a constant distance between the cars. A time delay relay is provided to cut out the satellite prime mover, after it has run for a predetermined time, to prevent the satellite car running away on a fault. If it is desired to bring the satellite car towards the main car, a switch is operated to increase the intensity of radiation so that a less sensitive relay is operated by the thermionic valve to cause reverse operation of the satellite prime mover. The radiatlan transmitter may, alternatively be mounted on the satellite car, and a reflector on the main car.
Patent GB-1134699-A (GB)
Title: Improvements in or relating to metallurgical converter furnaces
IPC: C21C5/44
Filed: 1965-12-29
Abstract: 1,134,699. Converter linings. QUIGLEY CO. Inc. 29 Dec., 1965 [7 Jan., 1965], No. 55062/65. Heading F4B. The life of the lining of a metallurgical converter is prolonged by applying further refractory in layers, allowing each layer to fuse with the preceding layer and dry at the operating temperature of the converter at intervals during a period in which the converter is operated for substantially less than the normal number of heats per day, operating the converter normally for a second period, and for the remaining period of the lining life, operating the converter for slightly less than the normal number of heats per day, and repairing and recoating the lining at intervals during this final period. By suitably staggering the operations, a substantially constant number of heats per day may be treated in three converters in spite of the necessity for relining.
Patent GB-1366028-A (GB)
Title: 13-alkyl-18,19-dinor-pregnadiones processes for their preparation and compositions incorporating them
IPC: C07J7/00
Filed: 1972-12-08
Abstract: 1366028 7-Methylpregna-4,9,11-trienes and 13-homologues thereof ROUSSEL-UCLAF 8 Dec 1972 [8 Dec 1971] 56650/72 Heading C2U The invention comprises compounds of formula  wherein R is alkyl and R<SP>1</SP> is H, alkyl, hydroxy or carboxylic acyloxy. They may be prepared from compounds of Formula II infra by hydrolysis to give the corresponding 3-oxo-5(10), 9(11)-diene followed by hydroperoxidation (e.g. with O 2 /tertiary amine) to give the corresponding 3 - oxo - 11# - hydroperoxy - 4,9 - diene followed by reduction to give the corresponding 3 - oxo - 11# - hydroxy - 4,9 - diene followed by dehydration to give I. Compounds of formula (wherein K is a ketal group and R and R<SP>1</SP> are as above) are prepared from compounds of Formula VII infra either (i) by hydration by the successive actions of B 2 H 6  and H 2 O 2  to give a corresponding 17#-(1-hydroxyethyl) compound, oxidation of which yields 2(R<SP>1</SP> = H); or (ii) by direct oxidation, e.g. with H 2 O 2 , to give 2(R<SP>1</SP> = OH). The latter may then be 17- acylated, or may be dehydrated to give the corresponding 16-ene, alkylation of which gives 2(R<SP>1</SP> = alkyl). Compounds of formula are prepared from the corresponding 17-ones by the Wittig reaction. Thereafter a dialkyl ketal group may be replaced by a cyclic ketal group by hydrolysis to the corresponding 3-one followed by reketalization with a diol. In Example 1 a by-product of the Wittig reaction is 3 - methoxy - 7α - methyl - 19 - norpregna - 3,- 5(10),9(11),17(20)-tetraene. Compounds I are said to possess exogenous antiandrogenic, antihypophysial and antiestrogenic properties, and may be made up with carriers into pharmaceutical compositions for oral, parenteral and rectal administration.
Patent GB-1413669-A (GB)
Title: Preparation of catalysts from zeolite l
IPC: B01J29/61
Filed: 1972-12-11
Abstract: 1413669 Modified zeolite-L SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 11 Dec 1972 [7 Jan 1972] 57009/72 Heading C1A [Also in Divisions B1 and C5] Zeolite-L is (a) treated with an aqueous solution of a salt of a nitrogen base at about 100 C., (b) calcined below 600 C. and (c) treated with an aqueous solution of a salt of a nitrogen base, the solution containing chromate ions, at about 100 C. and the steps (a) to (c) are repeated until the alkali metal content is less than 0À35 wt. per cent and the crystallinity loss is no more than 25%.
Patent GB-1262269-A (GB)
Title: Pumps
Inventor: PRICE DEREK ALFRED CHARLES
IPC: H02K44/04
Filed: 1968-12-03
Abstract: 1,262,269. Pumps operating by electromagnetic interaction with fluids. ENGLISH ELECTRIC CO. Ltd. 2 Dec., 1969 [3 Dec., 1968], No. 57257/68. Heading H2A. In an A.C. conduction pump an electrically conductive fluid is pumped through a duct 21 by passing alternating current through the duct between oppositely located conductive wall portions and applying an alternating magnetic field at right angles to the current path. The current is obtained from a transformer having a secondary winding in the form of conductive plates 14 having extensions 15 shaped to form a channel 18, Fig. 2 (not shown) to the side walls (17A, 19A) of which the electrically conductive wall portions of the duct are brazed. The plates 14 have slots 24 to reduce eddy currents. The magnetic field is obtained from a laminated core 10. In a modification the plates 14 are replaced by a single conductive block.
Patent GB-1299856-A (GB)
Title: Ring watch
Inventor: STEVENS TREVOR
IPC: A44C9/00
Filed: 1968-12-05
Abstract: 1299856 Finger rings STEVENS SECUNDA ASSOCIATES Ltd 5 March 1970 [5 Dec 1968] 57822/68 Heading A3H  A finger ring in the form of a block of material having a finger aperture 3, has a transparent cover member 11 which encloses a watch movement located in a recess 7 in the top face 5 of the block. The block may be cylindrical, rectangular or tapered and the cover member, which may magnify the watch face, may slide across the top face 5 of the ring or may be a snap-fit cap (91), Fig. 13 (not shown), a shell (37), Fig. 6 (not shown), enclosing the block, or a screw-on cap.
Patent GB-1427765-A (GB)
Title: Thread guide changing device for two-system flat bed knitting  machines
IPC: D04B15/56
Filed: 1973-12-17
Abstract: 1427765 Flat bed knitting machines WIRKMASCHINENBAU KARL - MARX - STADT VEB 17 Dec 1973 [21 Dec 1972] 58284/73 Heading D1C In a two system flat knitting machine, at the ends of the traverse of the carriage, first and second control devices are provided for the leading and second thread guides which engage first and second drive means 25, 26 and 27, 28 and each comprise two spaced switch members 20, 21 and 22, 23, the spacing of the two sets being different, each switch member being coupled to a rod member 16, 17, 18 or 19 displaceable by a cam plate 5, 6 controlled by thread guide selector control means. Cam plates 5, 6 are connected by bars 4, 4' connected by a linkage to the control system which may comprise perforated cords. Switch rods 16, 17, 18, 19 carry pins 24 which engage slots 7, 8 in cam plates 5, 6 so that, movement of the latter causes movement of the members 20, 21; 22, 23 which act on engaging means 25, 26; 27, 28. The spacing of members 20, 21; 22, 23 and the shaping of members 25, 26; 27, 28 is such as to avoid collisions.
Patent GB-1369669-A (GB)
Title: Line circuits for communication systems
IPC: H04Q3/54
Filed: 1971-12-17
Abstract: 1369669 Automatic exchange equipment WESTERN ELECTRIC CO Inc 17 Dec 1971 [21 Dec 1970] 58605/71 Heading H4K In a centrally controlled telephone exchange the calling subscriber's line circuit is marked only after he has completed dialling into a register. In the exchange described the switching network SN, a six-wire crossbar switch network, is controlled by common control CC to interconnect line circuits, e.g. LC11, with trunk, intercom trunks or register circuits, not shown. In line circuit LC11 a gate ADDR which is enabled by the output of gate ENAB and by the scanning signal on wires Ta, Ua, Ux provides an enabling signal for status gate STAT to provide a marking signal on lead LCS which reaches common control at NRC or LB depending on the state of hold magnet HM. When the subscriber goes off hook the common control signal on line BI is transferred through the substation to line BE which enables gate ENAB so a marking is produced on lead LCS and appears, after passing through a call barring connection, as a service request on lead NRC or RSC. A register is connected by operation of the hold magnet to the A or B levels of the TRS leads depending on whether it is a non- steered or steered register and dial tone is sent. If the register is steered relay STRR is operated before the hold magnet. The called number is dialled and when complete is passed by the register to common control for selection of the respective trunk circuit. The line circuit now has to be marked so that this further connection can be made and this is achieved by the register applying a potential (back signal) to lead S to break down Zener diode DZ thereby to enable gate ENAB and cause a mark to appear on line LCS. This mark passes to common control on lead LB and connection of the respective trunk circuit to the line circuit is made.
Patent GB-1456038-A (GB)
Title: Peak voltage clipping semi-conductor device
IPC: H01L29/86
Filed: 1973-12-19
Abstract: 1456038 Semi-conductor devices FABRICA ESPANOLA MAGNETOS SA 19 Dec 1973 [21 Dec 1972] 58948/73 Heading H1K A random crystal oriented polycrystalline semi-conductor body of, e.g. Si for peak voltage clipping, capable of withstanding a high inverse current, is formed with metal sheet electrodes or alternatively sprayed on metal electrodes of, e.g. Sn and Au respectively. Impurities of, e.g. P or B are deposited on the surfaces of the body and preferentially diffused along the grain boundaries to form multiple junctions thereat. On application of an inverse voltage exceeding a prescribed value, avalanche breakdown ensues at the grain boundary junctions so that current flows in the body as discrete microplasma current filaments.
Patent GB-1421349-A (GB)
Title: Nestable containers
IPC: B65D1/26
Filed: 1972-12-29
Abstract: 1421349 Portable containers ILLINOIS TOOL WORKS Inc 29 Dec 1972 [30 Dec 1971] 59991/72 Heading B8D [Also in Division A4] The bottom of a moulded plastics frustoconical container is formed with an upstanding resilient cushioning and centring projection, which comprises a closed bottom inner annular wall 15 joined by a curved portion 17 to a frusto-conical outer annular wall 16 and which co-operates with the projection of a like container nested therewith to prevent jamming of the two containers. (For Figure see next column.)
Patent GB-1223629-A (GB)
Title: Anti-offset powder and method
IPC: B41M7/02
Filed: 1968-12-18
Abstract: 1,223,629. Set-off preventing. OXY-DRY INTERNATIONAL Inc. 18 Dec., 1968 [28 Dec., 1967], No. 60163/68. Heading B6C. Freshly printed sheets are dusted with a powder comprising, by wt., from 75 to 90% dextrose powder, from 10 to 25% of hydropholic, silicone resin-treated starch and from 0À5 to 0À03% of a free-flowing agent, the average particle sizes of the dextrose particles being from 50 to 150Á. A particular composition comprises 84À98% dextrose, 15% hydropholic silicone resin-treated starch and 0À2% free-flowing agent. The powder is used at the rate of approximately 2 to 5 ounces per 1000 square feet of paper printed.
Patent GB-1379610-A (GB)
Title: Silkscreen printing machine
IPC: B41F15/08
Filed: 1971-12-29
Abstract: 1379610 Screen printing apparatus SVECIA SILKSCREEN MASKINER AB 29 Dec 1971 60615/71 Heading B6C In a screen-printing machine comprising a sheet bearing impression cylinder 1, horizontally reciprocable stencil and frame unit 5, 4, driven by the cylinder 1, and a squeegee and colour box above the cylinder 1 (not shown), the frame unit 5,4, squeegee and colour box are removable as a unit from the top of the cylinder 1 by hydraulic devices 41, 42, at the four corners of an additional frame 40 upon which the frame unit 5,4 the squeegee and the colour box are mounted.
Patent GB-1307009-A (GB)
Title: Ammoxidation of chloromethyl compounds
IPC: B01J23/00
Filed: 1970-12-23
Abstract: 1307009 Ammoxidation process RHONE POULENC SA 23 Dec 1970 [30 Dec 1969 30 Oct 1970] 61219/70 Heading C2C Nitriles of the formula Y-C#N; wherein Y is an alkylphenyl radical or an alkenyl radical of the formula where R 1 , R 2  and R 3  are hydrogen atoms or alkyl groups with at least one of them being a methyl radical; are obtained by treating compounds of the formula Y-CH 2 -Cl with oxygen and ammonia in the vapour phase in the presence of at least one element of Groups Ib, III, IV, V or VIb of the Periodic Table or of iron or of a derivative thereof. Methacrolein and O-methylbenzaldehyde may be obtained as by-products in the ammoxidation of methallyl chloride and ochloromethyltoluene respectively.. O -Methyl - benzaldehyde may be separated from the reaction product by converting it to its bisulphite addition compound. Specified elements present in the catalyst are copper, aluminium, antimony, iron, tin, lead, titanium, zirconium, vanadium, thallium, boron, phosphorus, silicon and germanium.