baber/WOPTO huggingface dataset:
Patent GB-188410-A (GB)
Title: Improvements in grinding, milling, knurling and similar attachments for use on machine tools
IPC: B24B41/00
Filed: 1921-08-16
Abstract: 188,410. Wade, J. B., and Jagger, F. Aug. 16, 1921. Disc apparatus.-Grinding-attachments for use on machine tools comprise a spindle supporting bracket 8 hinged at 10 to a second bracket 1 which is secured to the machine by means of a T-slot 2. The brackets are secured relatively by means of a nut 9 and spring washer 11. The tool spindle 12 carries one or more pulleys adapted to take a belt which is guided by jockeypulleys 21 adjustably mounted on a bracket 16 attached to a slotted plate 14 by means of a bolt 19, the plate 14 being revoluble about the axis of the spindle and locked by a nut 15. The bracket 8 may be replaced by one having a shank similar to that of an edge tool or having a straight slot in place of the T-slot, in each case the hinge 6 being laterally displaced so that the spindle may be longitudinally displaced on inversion of the bracket. An intermediate pulley 24 may be provided.
Patent GB-1428298-A (GB)
Title: Array of magnetoresisitve elements
IPC: G11C19/08
Filed: 1974-05-16
Abstract: 1428298 Magnetoresistive arrays INTERNATIONAL BUSINESS MACHINES CORP 16 May 1974 [29 June 1973] 21730/74 Heading H1K In a magnetoresistive array, e.g. for a reading head to be used with a magnetic storage medium, comprising a substrate 2, a magnetoresistive film 4 thereon and a plurality of spaced conductors 6 on the film 4 defining therebetween the elements of the array, undesirable flux coupling between adjacent elements giving rise to spurious signals is reduced by causing the material of the film 4 beneath the conductors 6 to have a higher coercivity than the uncovered areas of the film. This may be arranged by providing beneath each conductor 6 a layer 8 of a high coercivity material, the coercivity of the underlying regions of film 4 being increased by exchange coupling. The layer 8 may be of Ni-Co-P, other possibilities being an antiferromagnetic material such as NiO or α-Fe 2 O 3  or a hard ferromagnetic material such as NiCo, CoP, γ-Fe 2 O 3  or Fe 3 O 4 . Alternatively the coercivity of the covered portions of the film 4 may be increased by selectively roughening using a mild HCl solution prior to deposition of the conductors 6. The material of the film 4 may be NiFe, that of the substrate 2 glass, silicon or sapphire and that of the conductors 6 Au, Cu or Al.
Patent GB-1480243-A (GB)
Title: Electrical signal initiating devices
IPC: H01H9/02
Filed: 1975-04-07
Abstract: 1480243 Switches mounted on gloves POST OFFICE 7 April 1975 [16 May 1974] 21750/74 Heading H1N [Also in Division A3] An electrical signal initiating device comprises a glove 1 carrying microswitches 6 which operate with an audible click and/or a pronounced snap-over action giving a tactile indication of actuation when the respective finger is pressed against any surface. The surface of the glove is textured inside and outside except for a rear part 5 where it is glazed inside. The glove can alternatively be replaced by a number of finger stalls (not shown). A switch can be provided to disconnect all the elements in the device.
Patent GB-839624-A (GB)
Title: Improvements in or relating to engraving machines
IPC: B44B3/06
Filed: 1955-07-28
Abstract: 839,624. Copy-milling. CLIFFORD, T. W., SHENTON, A. E., and KAPELLA Ltd. July 27, 1956 [July 28, 1955], No. 21795/55. Class 83 (3). [Also in Group XVI] An engraving-machine comprises a drum Fl of polygonal section bearing lengths of pattern or copy on its plane faces, which copy represents matter to be engraved consecutively on a workpiece, and means for correlating the position of the tool with the position of the follower on each length of pattern, to ensure correct continuity. The machine, having a pantograph H, is generally similar to that described in Specification 839,625 in which movement of a stylus G longitudinally of a pattern on the drum F<SP>1</SP> causes rotation of a number of work-spindles C beneath cutter-spindles E, and movement transversely of the pattern causes movement of the cutters axially of the workpieces. The lateral movement of the work-carriage B is converted to rotation of the work-spindles by a steel tape S engaging a drum R on each spindle. Each drum R is connected to its spindle by a detent R2 which engages one of a number of slots Q<SP>2</SP> in a disc Q<SP>1</SP> fast with the spindle, the number of segments formed by the slots being equal to the number of lengths of the pattern which it is desired to engrave around each workpiece. When one length of pattern has been copied, the stylus is locked in a fork F<SP>5</SP>, and a pedal is depressed to move a lever O, Fig. 4, pivoted to the carriage B at O<SP>4</SP>. The lever O carries, for each work-spindle, a pair of rollers, of which one (O<SP>1</SP>) enters a recess Q<SP>2</SP> and the other (O<SP>2</SP>) releases the plunger R<SP>1</SP>. Each drum R is thus free to rotate while the stylus is transferred from the fork F<SP>5</SP> to a fork F4. Movement of the pedal also moves a lever F<SP>2</SP> to allow the drum F<SP>1</SP> to be indexed. The plunger R<SP>1</SP> then engages the next slot Q<SP>2</SP>, the pedal is released, and copying is continued. Slip of the tape S on a drum R can be prevented by employing a tape T, Fig. 6, anchored to the drum by a pin T4. Instead of rotating the drums R relatively to the workspindles, the spindles may be advanced by advancing the tape S. In a further modification, the drums are linked by tapes to a master drum rolling on fixed tapes. The tape mechanism may be replaced by rack-and-pinion gearing. In a final modification for engraving on a plane surface, the work is advanced on a slide instead of being rotated.
Patent GB-792613-A (GB)
Title: Improvements in or relating to scraper means operating on strainer surfaces
Inventor: JALKANEN MATTI JOHANNES
IPC: B01D25/38
Filed: 1956-07-16
Abstract: 792,613. Filter scrapers. RAUMA-REPOLA OY. July 16, 1956, No. 21914/56. Class 46. A rotating scraper blade 1 inclined at an angle to a strainer surface has its leading edge parallel to the surface and, as viewed perpendicular to the surface, this leading edge is formed of edge portions 7a, 7b, 7c, stepped backwards relatively to each other outwards from the axis of rotation 5. Each portion is rearwardly inclined at an acute angle to a radius r passing through the axis of rotation and the inner end, such as 13a, of the portion. Recesses 11 may be provided so that the zone of the strainer surface covered by one edge portion overlaps the zone covered by an adjacent edge portion. As the blade rotates solid matter is scraped from the strainer surface and passes up the blade surface which may be provided with guides 12.
Patent GB-1283506-A (GB)
Title: Improvements in or relating to conduit coupling means
IPC: F16L39/00
Filed: 1971-04-19
Abstract: 1283506 Pipe couplings; valves FRANCE ARMED FORCES MINISTER OF 19 April 1971 [19 Feb 1970] 21948/71 Headings F2G and F2V A coupling for at least one pair of pipes, e.g. pipes T1, T1<SP>1</SP>, comprises two blocks 5, 13 with faces which can be directly engaged with each other, flow passages in the two blocks having valves 6, 14 which when closed prevent egress, &c. of fluid from the associated pipes, and a closure plate 19 which when it is secured to the block 13, causes both valves to open. The valve 6 has a hollow body receiving a valve-closing spring 7: the valve 14 is biased leftwards to the closed position by a spring 17, and both valves are opened by abutment of the control plate 19 with a push rod 15. Differential areas of the valve 14 and push rod 15 prevent fluid pressure opening this valve. Screws 20, 21 hold the plate and blocks together. As shown, the coupling connects pipes T1 ... T8, Fig. 1, to pipes T1<SP>1</SP> ... T8<SP>1</SP> and is mounted on a case 1. When the coupling blocks 5, 13 are separated, as in Fig. 1, their exposed faces may be covered by protective plates (23, 24), Fig. 7 (not shown).
Patent GB-1341923-A (GB)
Title: Rotary closed rankine cycle engine
IPC: F28D11/04
Filed: 1971-04-19
Abstract: 1341923 Rotary boilers; air cooled surface condensers E I DU PONT DE NEMOURS & CO 19 April 1971 [18 Feb 1970 6 April 1970 7 May 1970] 21975/71 Headings F4A and F4S [Also in Division F1] A closed cycle vapour engine operating on the Rankine cycle comprises an annular boiler B rotatable by an electric motor M, a combustion chamber 23 to heat and vaporize liquid in the boiler chamber 13, a turbine T operated by vapour under pressure passing through tubes 48 and nozzles 49 from the boiler chamber and a condenser C rotating with the boiler and receiving the turbine exhaust vapour through a passage 51. The condenser C comprises heat exchange tubes 73 extending through annular fins 72 or a helical arrangement of flat strip. The axial spacing and inner and outer radii of the fins 72 or turns of the helix at the rotational speed of the condenser C cause a cooling fluid, e.g. air to be pumped outwardly between the fins or turns due to the viscous properties of the fluid. The condensate from the tubes 73 collected in a manifold 69 is passed through a regenerator R comprising a plurality of arcuate housings 55, defining inner and outer flow passages 60 and 61 for vapour exhausted from the turbine T and containing finned conduits 70 connecting the manifold to condensate return pipes 19 to the boiler feed chamber 18. The feed chamber 18 is connected to the boiler chamber 13 by conduits 20 and 21, the conduits 21 determining the liquid level x in the boiler chamber. The combustion chamber 23 is supplied with fuel tangentially from a nozzle (30), Fig. 2 (not shown), and air from a blower through openings 32 in the combustion chamber wall 24 from a hood 33. A baffle (37), Fig. 2, directs the exhaust gases to an outlet (36) in the combustion chamber. Air and non-condensable vapours in the tubes 73 are exhausted to atmosphere by means of a bellows vacuum pump 81, Fig. 5, operated by a cam 97 at the outer end of a shaft 82 rotatable with the condenser C. Openings 88, Fig. 1, connect the outer ends of the tubes 73 to a manifold 86 in a plate 84 communicating with the pump inlet passage 103, Fig. 5, through passages 85 and 87 in the shaft and its supports 83 and a chamber 94 in the pump housing 91. The degree of vacuum produced by the pump 81 is controlled by an air bleed valve 102 having an adjustably spring- loaded needle valve 105 subjected to the pump vacuum in the bellows 106. The turbine shaft 43 rotates in the opposite direction to the boilercondenser assembly and may drive an electric generator or a wheeled vehicle. The boiler liquid may be bis-(trifluoromethyl) benzyl alcohol.
Patent GB-1400329-A (GB)
Title: Material handling apparatus including a grab bucket
IPC: B66C3/16
Filed: 1973-05-08
Abstract: 1400329 Rotation of grab buckets; unloading ships DRAVO CORP 8 May 1973 [18 May 1972] 21995/73 Headings B8B and B8E Material handling apparatus, exemplified in Fig. 1 as a ship unloader 10 arranged on a pier 22 to unload a ship 24, includes a grab-bucket 140 supported at diagonally opposite corners of its top face by ropes 132 which extend upwards over respective pulleys 126 in the same direction to haulage means 70, the pulleys 126 being mounted one on either side of a transverse axis 84 of an arm 82, the axis 84 being inclined to the vertical and the arm 82 being pivotable from a first position, Fig. 8, where the rear pulley 126 is above the front pulley 126 to a second postion, Fig. 9, where the front pulley 126 is above the rear pulley 126 with the result that the grab-bucket rotates without tilting. Trolley 42, supporting the grab-bucket 140 on shipunloader 10, has bumper pads 58 disposed to engage spring buffers 60 at the end of vertically pivotable beam 30.
Patent GB-1433194-A (GB)
Title: Recording and reproducing apparatus for electrical signals
IPC: H04N7/12
Filed: 1973-05-09
Abstract: 1433194 Television; bandwidth compression MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 9 May 1973 [11 May 1972 16 May 1972 (2)] 22008/73 Heading H4F and H4R A frame of a video signal is recorded, at television line and field frequencies on a storage tube 8, the resulting image being read out at a low frequency (e.g. 60 Hz line scanning frequency) and recorded, along with sound and synchronizing signals, on a magnetic tape in a recorder 12 from which the recorded video signal is subsequently read out and stored on storage tube 8, under the control of the recorded synchronizing signal, storage tube 8 then being repeatedly read at television line and field frequencies to display a still image on cathoderay tube 4, the associated sound being produced by speaker 48. The synchronzing signal may be in the form of pulses, each pulse being generated by counting 13 television horizontal synchronizing pulses, to provide 20 pulses per line recorded on the magnetic tape. The sound and video signals may be recorded sequentially on one track of the magnetic tape (Fig. 12, not shown) the synchronzing signal being recorded on a second track. Alternatively the sound, video and synchronizing signals may be recorded on different tracks (Fig. 14, not shown) a video signal only being recorded during alternate frames in which case two storage tubes (8, 8<SP>1</SP>, Fig. 13, not shown) may be provided, each of which is operative to store in one field, read in two fields and erase in the fourth field of each four field cycle, the image on cathode-ray tube 4 being derived from the storage tubes alternately. In a further embodiment (Fig. 19, not shown) signals are derived from a stereo tape recorder or record player, one of the stereo sound tracks having video signals recorded thereon during alternate fields, the video signals being separated and fed alternately to two storage tubes.
Patent GB-1138146-A (GB)
Title: Fat-liquoring agents for leather based on polyepoxides
IPC: C14C9/02
Filed: 1966-05-19
Abstract: 1,138,146. Compositions of fatty polyepoxides with mono-esters of nitric acid. BOEHME CHEMIE G.m.b.H. 19 May, 1966 [20 May, 1965], No. 22220/66. Heading C3B. [Also in Division C6] Fat-liquoring agents for leather comprise (a) an epoxidized fatty substance which is a natural or synthetic ester of (1) a polyhydric alcohol and an unsaturated fatty acid of 8-20 carbon atoms, or (2) a polycarboxylic acid and an unsaturated fatty alcohol of 8-20 carbon atoms, and (b) a mono-ester of citric acid with an aliphatic alcohol of 8-36 carbon atoms. Up to 10 wt. per cent of (b) may be replaced by an acid, organic phosphate or a phosphonic acid. The agents may be dissolved in organic solvents or emulsified in water, possibly in the presence of an emulsifying agent. Example 7 also discloses that the citric acid ester may be replaced by octadecenylsuccinic acid, N-octadecenylaspartic acid or monoisotridecyl dicitric acid ester.
Patent GB-392162-A (GB)
Title: Improvements in or connected with grease or oil nipples or cups
IPC: F16N21/02
Filed: 1931-08-08
Abstract: 392,162. Lubricating cups or nipples. MILLS, Ltd., J., EXECUTORS OF, Bredbury Steel Works, Bredbury, near Stockport. and MACBETH, A., Broadway, The Firs, Bowdon, Altrincham, both in Cheshire, Aug. 8, 1931, No. 22457. [Class 12 (iii).] The lower part of the unthreaded shank 9 of a grease or oil nipple or cup is indented with a number of V-section longitudinal grooves 11 whereby ribs 12 are pressed out from the shank and are adapted, when the shank is driven into a plain hole 13, to be deformed so as to hold the shank securely in the hole. The grooves 11 may be of uniform depth or may increase in depth from the lower end. A conical shoulder 10 formed between the shank and the head 8 seals the mouth of the hole 13 and enables a claw tool to be engaged below the head for the purpose of removing the nipple or cup. The shank may be cylindrical, or conical, or, as shown, the lower part may be cylindrical and the upper part conical.
Patent GB-956458-A (GB)
Title: Preparation of organic bis-phosphines
IPC: C10L1/26
Filed: 1960-06-27
Abstract: A bis-phosphine in which the two phosphorus atoms are separated by two carbon atoms is obtained by reacting a biphosphine with an alkyne in the presence of iodine as catalyst or with an alkene, the trebly or doubly bonded carbon atoms in the alkyne or alkene respectively not forming part of a ring.  The reaction with the alkene may be carried out in the presence of iodine as catalyst in order to accelerate the reaction.  The biphosphine may be one having the general formula R2P-PR2 wherein the R symbols represent the same or different hydrocarbon, halogen, or halogenated hydrocarbon groups and the alkene and alkyne may have the formula R12C=CR12 and R1C­CR1 respectively wherein the R1 symbols are the same or different atoms or radicals e.g. hydrogen, hydrocarbon or halogen.  The reaction is facilitated by the presence of electronegative groups on the P atom and by the presence of electropositive groups on the carbon and it is preferred that the R atoms or groups are together substantially more electronegative than the R1 atoms or groups. The symbol R is preferably a C1-C12 alkyl group, a halo-substituted lower alkyl, e.g. CF3 or CCl3, phenyl, lower alkylphenyl, halophenyl (e.g. ClC6H4- or BrC6H4-), or nitrophenyl, and the symbol R1 is preferably hydrogen, halogen (e.g. chlorine), C1-C14 alkyl, halo-substitute lower alkyl, phenyl, lower alkylphenyl, halophenyl (e.g. ClC6H4-or BrC6H4-), nitrophenyl or biphenylyl, the term "lower alkyl" being defined as a C1-C8 alkyl group. The products have the general formulae R2P.C(R1)2.C(R1)2.PR2(I) and R2PC(R1)=C(R1)PR2(II) respectively wherein R and R1 are as defined above.  The invention also includes as new compounds products of the general formulae I and II above wherein R is any of the preferred groups specified above except C1-C12 alkyl and R1 is any of the preferred groups or atoms specified above.  Examples are given for the production of: (1)(CF3)2PC2H4P(CF3)2 from ethylene and P2(CF3)4; (2) (CF3)2PCF2CF2 P(CF3)2 and a by-product comprising a cyclic phosphine CF3PC4F8 from C2F4 and P2(CF3)4; (3) (CH3)2PC2H4P(CH3)2 from ethylene and P2(CH3)4; and (4) (CF3)2PCH=CHP(CF3)2 from acetylene and P2(CF3)4, the compounds (CF3)3P, CF3PC2H2CF3 and [(CF3)2PC2H2]2 PCF3 being also obtained as by-products.  (CH3)2P.P(CH3)2 is obtained by heating dimethylphosphonium chloride with dimethylaminodimethylphosphine at 95 DEG C. in a tube attached to a high vaccum system and (CH3)2 P.P.(CF3)2 is obtained by mixing (CF3)2PCl with dimethylphosphine and trimethylamine in diethyl ether with stirring at -78 DEG C. Reference has been directed by the Comptroller to Specification 859,391.
Patent GB-1423256-A (GB)
Title: Fused cast refractory products containing chromic oxide
IPC: C04B35/12
Filed: 1973-05-11
Abstract: 1423256 Fused refractory product L'ELECTRO-REFRACTAIRE 11 May 1973 [12 May 1972] 22544/73 Heading C1J A fused cast refractory product is composed of crystalline phases consisting substantially of chromic oxide and zirconia or of chromic oxide, zirconia and alumina and of a vitreous matrix comprising silica, a substantially saturating amount of alumina and at least one alkali metal or alkaline earth metal oxide of Na 2 O, K 2 O, Li 2 O 3 CaO, BaO, BeO and MgO, the composition of the product in weight per cent being 1-74% Cr 2 O 3 , 15-40% ZrO 2 , 3-76% Al 2 O 3 , 7À5-20% SiO 2  and a proportion of the alkali metal or alkaline earth metal oxides less than the proportion of silica. The product may be obtained by melting the starting materials (e.g. the oxides or sources thereof such as zircon), casting and cooling in controlled manner. The melting is in an oxidizing atmosphere when chromic oxide is a part of the starting materials.
Patent GB-405051-A (GB)
Title: Improvements relating to regulating the supply of liquids
IPC: G05D11/035
Filed: 1932-08-12
Abstract: 405,051. Regulating pumps. HYDRAUMAT (1931), Ltd., LAWRIE, A. E., and REEVES, H. C., Victoria Station House, Victoria Street, London. Aug.12, 1932, No. 22618. [Class 102 (i).] In apparatus for regulating the flow in an open or closed conduit in accordance with the flow in a second conduit, the output of a pump supplying one of the liquids is controlled, other than by throttling the delivery therefrom, by the opposed effects of constriction-induced pressure reduction in a conduit appertaining to the pump and constriction-induced pressure reduction in another conduit. In the arrangement shown in the Figure a reciprocating pump f is driven by an hydraulic engine e supplied through a conduit d and exhausted through a conduit controlled by a valve k<1>. This valve is actuated by inlet pressure admitted through a restriction d<2> and controlled by a baffle j<1> moving to and from a jet d<3>. The baffle j<1> is actuated by a pair of opposed diaphragms c, i subject, respectively, to the pressures across a Venturi restriction b in the conduit a and the pressure across an adjustable constriction h<1> in the outlet conduit from the pump. The restriction h<1> may be arranged in a closed circuit containing an auxiliary pump m or may be placed in the inlet or exhaust conduit of the hydraulic engine. In the latter case a bye-pass arrangement is provided to compensate for the constant leakage through the engine. The interconnected diaphragm may be utilized to actuate a rheostat controlling an electric motor operating the pump. The Venturi pipe may be replaced by a throttling plate or weir.
Patent GB-463528-A (GB)
Title: Improvements in or relating to the overhead trolleys of electric vehicles
IPC: B60L5/22
Filed: 1936-08-17
Abstract: 463,528. Overhead trollys of electric vehicles. GUBLER, E. Aug. 17, 1936, No. 22618. Convention date, Aug. 24, 1935. [Class 104 (iii)] An overhead current collector comprises a pair of rollers 5, 6 mounted in ball-bearings 3, 4, 8, 9 carried by a support 2 on the trolly pole. The rollers are bevelled at their ends to facilitate movement of the wire 7 on to the bow 1 of the trolly pole at curves. The bearings of the rollers may be spring-mounted on the support 2. In the Specification as open to inspection under Sect. 91 the wire is supported by two pairs of bevelled vertical rollers mounted on a carrier provided with rollers running on rails arranged below the bow. This subject-matter does not appear in the Specification as accepted.
Patent GB-1536605-A (GB)
Title: Method for heat supply to the solvent bath of a degreasing apparatus
IPC: B01D5/00
Filed: 1976-06-01
Abstract: In the degreasing device, the liquid solvent (3') is evaporated in a liquid compartment (1') and the solvent vapour (6') is condensed on a cooling coil (7'). To save energy, the heat carried off to the cooling coil (7') is again supplied to the liquid compartment (1') via a heat pump system. To this end, in the exemplary embodiment illustrated, a part of the solvent condensed on the cooling coil (7') is expanded via an expansion valve (14), evaporated in the cooling coil (7'), compressed in a compressor (10) and subsequently condensed in the liquid compartment (1'), yielding heat. <IMAGE>
Patent GB-634875-A (GB)
Title: Rotary sirens
IPC: G10K7/04
Filed: 1947-08-14
Abstract: 634,875. Sirens; audible and like signalling- apparatus. RUSSELL, E. S., and SERVICE ELECTRIC CO., Ltd. Aug. 14, 1947, No. 22643. [Classes 13 and 118 (ii)] A siren comprising a rotor 8 and stator 9 is completely enclosed and silenced by a cover 20 and a valve plate 26 lightly pressed by a spring 27 to cover the air intake 11. The cover 20 and valve plate 26 may be raised by a vertical push rod 16 inside the hollow rotor shaft 4 actuated by levers 13, 15 against a restoring spring 31, an electric motor 2, 3 driving the rotor 8 being simultaneously operated through contacts such as 18.. Thus the siren may produce sharp distinct signals.