baber/WOPTO huggingface dataset:
Patent GB-582047-A (GB)
Title: Improvements in or connected with parallax measuring instruments, such as rangefinders
IPC: G01C3/12
Filed: 1944-03-01
Abstract: 582,047. Range finders. BARR & STROUD, Ltd., and FRENCH, SIR J. W. March 1, 1944, No. 3884. [Class 97 (i)] In a parallax measuring instrument of the kind wherein the image forming rays from one end are reflected and those from the other end are transmitted by a surface, the reflecting - transmitting surface is provided with field markings which extend over the whole or nearly the whole of the height of the field and the focal lengths of the objectives are enlarged so that the whole of the markings are in good focus and provide for overlapping image or coincidence range measurements. As show applied to a range finder, the rays from one end of the instrument, after passing through the part of a prism combination similar to that described in Specification. 30152/09, [Class 97 (i)], are reflected from the face 1 on to the face 5 which is silvered in strips or in a pattern, and are again reflected to pass through the face 1 to an eye-piece E. The beam after reflection from the face 1 must be reflected from the face 5 so as to strike the face 1 again at an angle less than the critical angle of the glass and the face 5 is thus inclined to the normal of the exit beam at an angle not less than half the difference between the angle of reflection r and the critical angle of the glass. The pattern of the markings may be varied, Fig. 4 (not shown), or the colour of one or both beams may be altered, Figs. 6 and 7 (not shown). Part of the field may be arranged for overlapping image and part for coincidence measurement and direction indicating means may also be incorporated. Specification 580,043 also is referred to.
Patent GB-342902-A (GB)
Title: Improved receptacle for disc talking machine records
IPC: A47B81/06
Filed: 1930-02-05
Abstract: 342,902. Gramophones. GRAMOPHONE CO., Ltd., Hayes, Middlesex, and WARD, A. W., 158, Gladstone Gardens, Cricklewood, London. Feb. 5, 1930, No. 3956. [Class 40 (ii).] Disc records are stored in a receptacle adapted to be located over the turntable of a gramophone when the machine is not in use, co-operating parts on the cabinet or lid acting to secure the records against movement. As shown, the receptacle is formed of crossed strips 1, 2 connected together and provided with a perforation 3 where they cross, the ends of the strips being bent into loops 9 faced with felt 11. Rods 14 extending between the loops 9 form lifting handles. The receptacle may rest on the turntable 5, or the loops 9 may extend downwardly sufficiently to form supporting legs and rest on the motor board 13, which may have studs 18 to prevent rotary displacement. The turntable spindle 4 and the sides of the cabinet facilitate positioning, and on closing the lid 15 of the gramophone wedge pieces 16 thereon engage the handles 14 to cause the pads 11 to grip the records. Alternatively, a lining on the lid may bear on the top record.
Patent GB-747883-A (GB)
Title: Improvements in or relating to radio direction finders
Inventor: SHARPLES ROY WATSON
IPC: G01S1/02
Filed: 1954-02-10
Abstract: 747,883. Radio direction-finding. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 10, 1954 [Feb. 10, 1954], No. 3960/54. Class 40 (7). Relates to a switched-cardioid automatic radio direction-finder in which the signals received respectively by a loop aerial 1 and a non-diractional aerial 29 are combined alter. nately in phase and anti-phase under the control of a 70 c/s. voltage from a source 26 to give a modulated signal which is demodulated in receiver 19, the resultant 70 c/s. modulation output being applied together with a 70 c/s. output from source 26 to a two-phase motor 21 which automatically maintains the loop in its null position, the resultant angular position of the loop being indicated at 24. According to the present invention, the signal received by the loop 1 is applied through an amplifier 1a to a phase-splitting valve 3 and the pushpull outputs from the anode and cathode are applied respectively through oppositely poled rectifiers 11 and 12 to the input of receiver 19 where they are combined with the signal received by the non-directional aerial 29 and a 70 c/s. output from source 26 is applied to rectifiers 11 and 12 to make them alternately conductive.
Patent GB-932156-A (GB)
Title: Improvements in or relating to gear pumps
IPC: F04C2/08
Filed: 1961-02-02
Abstract: 932,156. Gear pumps. SOC. INDUSTRIELLE GENERALE DE MECANIQUE APPLIQUEE S.A. Feb. 2, 1961 [Feb. 8, 1960], No. 4025/61. Class 110 (2). A reversible gear pump comprises pinions 3, 4 rotating between bearings 11, 12, 13, 14, each bearing housing a roller bearing. The bearings 11, 13 are urged against the pinions by liquid pressure transmitted through grooves 17 and 18 in the periphery of the bearings from points near the periphery of one or both pinions diametrically opposed to the position of the meshing teeth. Springs 19, 20 are also fitted to urge the bearings against the pinions. Leakage is prevented by sleeves 21, 22 coaxial with each pinion and fitted inside the bearings 11, 13 and apertures in the casing. Leakage is collected in chambers 28, 29, partly through passages 25, 27. The chambers 28, 29 are connected to each other, and by non-return valves to the inlet and outlet ports, so that regardless of the direction of rotation, liquid will flow to the inlet side.
Patent GB-1283053-A (GB)
Title: Apparatus for centrifugally removing liquid from a mixture
Inventor: WILSON PETER C
IPC: D21C9/18
Filed: 1969-08-04
Abstract: 1283053 Centrifugal strainer P C WILSON and R P HUGHART 4 Aug 1969 [12 Aug 1968] 4057/72 Divided out of 1283052 Heading B1D A centrifugal strainer for cellulose pulp comprises a rotating perforate screen 22 along which pulp is moved by an internal, differentially rotating scroll 24 carrying helical flights, the screen holes being circular, between 0.3 and 3mm wide and forming at least 10% of the screen area, and the longitudinal axes of the flights being inclined at not more than 65 degrees to the transverse plane of the strainer. The flights may be made of or covered with elastomeric materials (exemplified) (Figs. 6 to 9, not shown) and extra flights may be provided at the inlet end of the screen. The spacing of flights from the screen and from other flights is exemplified. The scroll has apertures 178 through which wash liquid or drying gas may be fed to the pulp, the gas being withdrawn by a vacuum pump connected to the housing at 48. Screen 22 is supported by wire mesh and an outer basket (Fig. 2, not shown). The rotating screen is surrounded by a fixed screen 23 with smaller apertures, which may be woven wire or cloth or have outwardly diverging conical apertures. The inner and outer screens are shown as cylindrical, but frusto-conical and compound forms are illustrated. The elastomeric covering on the scroll flights is replaceable when worn and may be ground to match the frusto-conical rotary screen by axially adjusting the scroll until the flights engage the screen and then rotating the scroll and screen differentially.
Patent GB-196133-A (GB)
Title: Improvements relating to golf clubs
IPC: A63B53/00
Filed: 1922-02-11
Abstract: 196,133. Marwood, F. T. Feb. 11, 1922. Golf clubs.-The weight of an aluminium golf club head of the "iron'' type is concentrated directly behind the ball by recessing the head to receive a filling of some heavy metal other than lead. As shown in Fig. 2, the metal filling B is recessed in the face of the club head A and is secured by screws b. Strengthening ribs a' may be provided on the back of the club head. In a modification, Fig. 8, the metal filling is recessed in the back of the club head and is secured by rivets b<1> formed integral with the filling. A sighting device a<4> may be formed on the top of the club head.
Patent GB-667321-A (GB)
Title: Improvements in or relating to safety devices for belt elevators, belt transmissionsand the like
IPC: F16D9/02
Filed: 1950-02-17
Abstract: 667,321. Couplings; breaking-pieces for relieving strain. AKTIEBOLAGET LINDE KVARNMASKINER. Feb. 17, 1950, No. 4100/50. Classes 80 (ii) and 80 (iv). A belt pulley 2, loose on its driving shaft 1, is connected thereto by an arm 3 fast on the shaft and adjustably carrying, by means of a bolt 4, a sector-shaped member 7 united with an arched member 8, secured to the pulley rim by a screw 5, by means of easily-fusible metal 10 cast in dovetail slots in the members 7, 8. If overheating occurs, due to excessive belt slippage, the metal 10 melts to release the pulley from the shaft. The radius of curvature of the outer surface of the member 7 is less than that of the inner surface of the member 8.
Patent GB-971375-A (GB)
Title: Improvements in or relating to apparatus for separating grain from straw and the like
Inventor: WITZEL HOMER D
IPC: A01F12/39
Filed: 1961-02-03
Abstract: 971,375. Screening apparatus. JOHN DEERE-LANZ A.G. Feb. 3, 1961, No. 4113/61. Heading B2H. Grain is separated from straw and cleaned in an apparatus which may form part of a combine harvester in which the harvester is hauled by a tractor &c., and the harvested crop after passage through a threshing mechanism 34, Fig. 3, at the front of the machine is fed at 38 into a cylindrical separator casing 40, and is moved rearwardly therethrough by a cylindrical rotary bladed impeller 42. Grain passes through a grate 46, Figs. 3 and 7, into a trough 48, and straw passes laterally from a discharge opening 44 adjacent a rear wall 90. A conveyer 50 delivers the separated grain to a chamber 54 in which a paddle wheel 128 throws the grain upwardly into a cylindrical cleaning casing 58 with a grate 62 and a rotary impeller 64. The latter has paddles 120, 122 and rotates with the impeller 42 and carries grain over its grate. A blower 66 draws air into the casing 58 via lateral inlets 190, Fig. 9, and chaff is thereby blown from the grains and is discharged from an opening 60. The grate is in two parts 68, 70, the former leading to a transverse trough 72 with a conveyer 78 feeding the cleaned grain to a conveyer 80 supplying a tank ; the part 70 is composed of bars of wider spacing and leads to a compartment 74 with a conveyer 86 whereby grain is fed back to the chamber 54 for re-cleaning. Conveyer 42 comprises a helical part 96 and radial blades 98 which co-operate closely with a fixed helical rib 102 on the wall of the casing 40, whereby the grain is rotated and moved axially. Similarly a helical rib 106 of varying pitch is fixed to the wall of the casing 58 and cooperates with the impeller 64 for feeding the grain rearwardly in the cleaning chamber. The impellers 42, 64 have hollow drive shafts through which the shaft 110 of the blower 66 extends, and the blower is driven separately by a variable drive in the opposite direction. Likewise the conveyer 50 and paddle wheel 128 are mounted on separate coaxial shafts and rotate at different speeds in the same direction. An I.C. engine on the harvester drives the parts via pulley, belts, chains and sprockets.
Patent GB-1446600-A (GB)
Title: Jaw clutch apparatus
IPC: F16H3/095
Filed: 1973-07-31
Abstract: 1446600 Positive clutches EATON CORP 31 July 1973 [31 July 1972] 04292/76 Divided out of 1446598 Heading F2C The subject-matter of this specification is the same as that described in Specification 1,446,598 but the claims are concerned with the positive clutch apparatus per se.
Patent GB-698876-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J13/02
Filed: 1950-02-20
Abstract: 698,876. Metal-vapour discharge apparatus. DELANY, B. P., and COPELAND, P. L. Feb. 20, 1950, No. 4303/50. Class 39(i) A liquid-cathode discharge de vice comprises a member, or a pan of the container, which is enlargec at the end remote from the cathode is in contact with the cathode and is provided with or carries a conductor or semi-conductor in contact with the pool and provided with a connecting member. A lamp or rectifier, may have a mercury or caesium cathode 3 and a glass envelope to which is sealed the glass funnel 4 coated internally with metal or silicon or silicor carbide 9 to which is connected the leading-in wire 10. The connectior may be effected at one point or through a spiral, which may be partly embedded in the funnel, and the coating may be extended intc the flared part 5. Starting is effected by connecting the wire 10 to a source of positive potential; in the case of a rectifier it may be connected to the anode either externally or through a resistance arranged within the envelope, or the starting potential may have a predetermined phase relationship to the anode voltage. Voltage and currents are specified. The funnel 5 may consist of an uncoated silicon conical member which fits tightly within the envelope. In another form, the conical end 21 of the tube carries an internal metal film which is connected to the anode through an internal resistance. Specification 698,875 is referred to.
Patent GB-524934-A (GB)
Title: Process for the utilisation of waste sulphuric acid
IPC: C01B17/92
Filed: 1939-02-09
Abstract: 524,934. Sulphates of aluminium, copper, iron and zinc. GLASER, W. Feb. 9, 1939, No. 4313. [Class 1 (iii)] Waste sulphuric acid obtained in the petroleum refining industry is added to a boiling suspension of argillaceous earth or metal ores or a metallic salt solution derived therefrom, so slowly that the acid enters immediately into chemical combination, the free acid averaging throughout the process not more than 6 per cent. and preferably less than 3 per cent. expressed in percentage of SO 3  the organic impurities in the acid being thereby precipitated. Suitable substances are bauxite, clay and aluminium salts to obtain aluminium sulphate, zinc ores and cement copper. In the case of aluminium the precipitated tar is removed at the end of the reaction and either ammonium or potassium sulphate added and the solution concentrated to 30‹BÚ. On cooling an alum separates and the process is repeated. When the ferrous sulphate present reaches its saturation point it crystallizes out while hot, thus it need not contaminate the alum. The separation of ferrous sulphate is facilitated by the presence of free sulphuric acid.
Patent GB-848127-A (GB)
Title: Improvements relating to fuel elements for nuclear reactors
Inventor: KELLER ALFRED ZELMA
IPC: G21C3/04
Filed: 1958-02-11
Abstract: 848,127. Nuclear fuel elements. A.E.I.-J. THOMPSON NUCLEAR ENERGY CO. Ltd. Feb. 4, 1959 [Feb. 11, 1958], No. 4449/58. Class 39(4). As shown, Fig. 2, the helically finned fuel element sheath encloses a cylindrical fuel rod. Relative axial movement between the sheath and rod is prevented by circumferencial grooves in the rod surface into which the sheath is pressed. The grooves are spaced axially over the end zones and distributed over a distance γ given by the expression h/2 #E/G where h is the sheath thickness, but G and E are the modulii of rigidity and elasticity respectively.
Patent GB-526240-A (GB)
Title: Improvements relating to yarn twisting or doubling machines
IPC: B29D30/44
Filed: 1939-02-11
Abstract: 526,240. Stretching and doubling yarns. TANNER BROS. (GREENFIELD), Ltd., TANNER G., and WINTERBOTTOM, J. Feb. 11, 1939, No. 4568. Class 120 (ii)] In a yam twisting and doubling machine the yarn is stretched by being passed to and fro over grooved cones secured upon or formed integrally with the doubling rollers which are arranged in two parallel lines,and positively driven. As shown the yam from the bobbin b to the spool c, onto which it is wound by a ring and traveller, passes to and fro around the grooved cones d, e on the positively-driven rollers f, g ; the extent of the stretch imparted to the yarn may be varied by varying the number of times the yam passes to and fro around the cones.
Patent GB-673039-A (GB)
Title: Improvements in or relating to turbine blades
IPC: F01D5/28
Filed: 1950-02-22
Abstract: 673,039. Turbine blades. MASCHINENFABRIK AUGSBERG-NURNBERG AKT.- GES. Feb. 22, 1950 [July 19, 1949], No. 4578/50. Class 110(iii) A ceramic rotor blade is divided longitudinally along the chord into. two parts 1, 2, the roots of the two parts being received in grooves inclined to one another, at least one being inclined to the rotor axis, the inclinations being determined by the mean inclination of the centre lines of the two parts. The joint X between the two parts may be staggered to prevent leakage through the blade. The roots are of dovetail shape and are received in wedge-shaped grooves.
Patent GB-168819-A (GB)
Title: Improvements in or relating to toothed gearing
IPC: F16H55/14
Filed: 1921-02-09
Abstract: 168,819. Uggla, W. R and Wallgren, G. A. F. Feb. 9, 1921. Addition to 157,020. Flexible toothed wheels.- Toothed wheels of the kind described in the parent Specification, that is having a rim 15 rotatable with respect to its hub and being connected by plate springs 16 so as to yield in two directions, are modified to allow the rim or rims to move axially. As applied to countershaft reducing-gearing suitable for electric motors and turbines, one wheel 5 of each train has separate rims 15, 15<1> having helical teeth of opposite slope. These rims are supported to slide circumferentially and axially upon spokes 14. The springs 16 are a sliding fit in grooves 17 within the rim sections. The yielding motion of the rim or rims is limited by arms 14<1> upon the spokes 14.
Patent GB-828062-A (GB)
Title: Improvements in or relating to floor constructions
Inventor: PAYNE HAROLD JAMES WILLIAM
IPC: E04B5/40
Filed: 1955-02-16
Abstract: 828,062. Floors. ROBERTSON THAIN Ltd. Feb. 15, 1956 [Feb. 16, 1955], No. 4673/55. Class 20(4) A floor comprises a corrugated metal unit 1 covered by a concrete or like compression layer 9, in which the unit 1 has flat-top surfaces 3 interrupted by channels 2 and a plurality of anchoring straps 7 extend transversely to the channels 2 and pass through slots 8 formed in the unit 1 so that the layer 9 is anchored to the unit 1 by the portions thereof which extend into the channels and underneath the straps 7. A flat or corrugated sheet 5 may be secured to the sheet 1 and the ends 10 of straps 7 may be prevented from lateral movement
Patent GB-324257-A (GB)
Title: Improvements in or relating to spectacles
IPC: G02C5/20
Filed: 1929-02-12
Abstract: 324,257. Nitsche &. G³nther Optische Werke Akt.-Ges. Dec. 28, 1928, [Convention date). Spectacles.-A clamping device for spectacle sides comprises a sleeve e screwed on to the side wire b, which is made hollow to receive the adjustable portion a, the portion a being sur. rounded by a torsion member d, such as a spring, serving to clamp the portion a in position when the sleeve e is rotated. This effect results from the twisting of a part of the member d and also its compression whereby some of the coils are caused to ride up upon the adjacent coils. A conical cavity c is provided to assist in the clamping action.
Patent GB-212723-A (GB)
Title: Stoker for furnaces
IPC: F23K3/00
Filed: 1923-02-19
Abstract: 212,723. Pollock, W. J. Feb. 19, 1923. Fuel, feeding.-Fuel is fed to boiler furnaces by a shoot 2 delivering into a movable, distributor 3 having branches extending above the hoppers 1. By moving the distributor laterally the fuel may be directed to one hopper only or to both hoppers in the desired proportions. The fuel is injected into the furnaces from the lower ends of the hoppers by steam, air, liquid fuel or other fluid under pressure supplied by a pipe 4.
Patent GB-920462-A (GB)
Title: New carbamic esters
IPC: C07C271/06
Filed: 1961-02-08
Abstract: The invention comprises carbamic acid esters of general formula <FORM:0920462/IV(a)/1> in which R1 represents a cyclopentyl or cyclopentenyl radical in the o and p positions, R2 a hydrogen atom or an alkyl radical with up to 4 carbon atoms, and R3 and R4 radicals as R2 at least one of them being such an alkyl radical, specifically o-cyclopentyl- and o-cyclopentenyl-phenyl - N - methyl carbamate. The esters are prepared by reacting a halo-carbonic acid-(cyclopentyl or cyclopentenyl phenyl)ester with a mono- or dialkylamine, or by reacting a cyclopentyl or cyclopentenyl phenol with a mono- or dialkyl carbamic acid halide. Examples describe the preparation of o-cyclopentyl phenyl-N-methyl carbamate, and o - cyclopentenyl-phenyl-N-methyl carbamate and their use with solid or liquid diluent or carrier as insecticides and pesticides for plants and animals. Specifications 743,958 and 793,184 are referred to.ALSO:Pesticidal compositions comprise carbamic-acid ester of formula <FORM:0920462/VI/1> in which R1 represents a cyclopentyl or cyclopentenyl radical in the o and p positions, R2 for a hydrogen atom or alkyl radical with up to 4 carbon atoms, and R3 and R4 radicals as R2, at least one of them being such an alkyl radical specifically o-cyclopentyl and o-cyclopentenylphenyl - N - methyl carbamate (Group IV (b)), with a solid or liquid diluent or carrier. Examples describe an aqueous emulsion with dimethyl formamide and benzyl hydroxy diphenyl polyglycol ether used as a spray against Pluttella maculipennis, Doralis Fabae Bendococcus maritimus, Boophilus microplus and Haemonchus cont. Specifications 743,958 and 793,184 are referred to.
Patent GB-388924-A (GB)
Title: Improvements relating to the preparation of asbestos fibres from the raw material
IPC: C04B20/08
Filed: 1932-02-18
Abstract: Chrysotile asbestos fibres for paper-making, asbestos-cement, &c., are prepared by wetting the raw material for a sufficient time to cause it to swell and treating it whilst wet in a grinding, crushing, or breaking machine.  The material may be immersed in or sprayed with water, or subjected to water jets as it passes on an endless conveyer to the crushing machine &c. Water &c. may also be sprayed on the material in the machine.ALSO:The raw material in the preparation of chrysotile asbestos fibres is wetted for a sufficient time to cause it to swell prior to wet treatment in a grinding, crushing, or breaking machine. The material may be immersed in or sprayed with water or subjected to water jets as it passes on an endless conveyer to the crushing machine &c., water may also be sprayed on the material in the machine.
Patent GB-1441675-A (GB)
Title: Process for producing synthetic coking coal
IPC: C10B57/04
Filed: 1974-02-01
Abstract: 1441675 Synthetic coking coal NIPPON MINING CO Ltd 1 Feb 1974 [3 Feb 1973] 04831/74 Heading C5E Synthetic coking coal is produced by coking at atmospheric pressure a heavy hydrocarbon composition having an "fa" of 0À4 or higher wherein and C/H is the ratio of carbon atoms to hydrogen atoms, Hα/H is the ratio of hydrogen atoms of aliphatic hydrocarbon groups in the a position to an aromatic ring to the total hydrogen atoms; and Ho/H is the ratio of hydrogen atoms of the aliphatic hydrocarbon groups in the # position or a more distant position from the nearest aromatic ring to the total hydrogen atoms. The coking can be carried out at 410-490 C. The feed can be (a) a raffinate produced from a residual oil by extraction with propane, butane, pentane or hexane, (b) an extract produced from a residual oil by extraction with dimethyl sulphoxide, diethylene glycol, sulpholane or methylcarbamate, (c) thermally or catalytically (e.g. using a silica catalyst) cracking a residual oil, or (d) blending a residual oil with a thermally cracked tar having an fa of 0À5-1À0. The residual oil can be an atmospheric or vacuum residue, natural asphalt, shale oil, coal tar or tar sand oil.
Patent GB-1211002-A (GB)
Title: Improved cable connecting means
Inventor: GREASLEY ERIC ARTHUR
IPC: H01R4/70
Filed: 1967-02-01
Abstract: 1,211,002. Electric couplings. PRESSAC Ltd. 31 Jan., 1968 [1 Feb., 1967], No. 4900/67. Heading H2E. A tubular insulating moulding 1, through which a cable 2 passes, has an integral trough portion 3. A terminal 7 is crimped to the bared end of the cable 2 and has spikes to penetrate the insulation of a cable 9 pressed under the bent portion 8. The terminal is withdrawn into the trough portion 3 to a limit set by tabs 11 and the portion 3 folded over and secured by a button 4 engaging a hole 5.