baber/WOPTO huggingface dataset:
Patent GB-621904-A (GB)
Title: Lead chambers for the manufacture of sulphuric acid
IPC: C01B17/84
Filed: 1944-03-17
Abstract: <PICT:0621904/III/1> A sulphuric acid lead chamber 1 comprises a pan having a lead floor 6 and upstand 3, a plurality of metal ribs 9 outside and extending upwardly from the bottom of the upstand to support it against outward thrust of the acid, and bracing means for pressing the ribs against the upstand.  The ribs may be of lead or lead alloy and may be burned at least in spots to the upstand, or loose.  The bracing means may be metal bands, rods or pipes 10 surrounding the ribs under longitudinal tension adjusted by the p turnbuckles 10a, and fitting if desired into notches in the ribs. The ribs may be extensions of or vertically supported by lead fins 22 formed on the chamber curtains 2 and stiffened by steel bars 26.  The arrangement of supporting means 25 is as disclosed in Specification 270,826, [Class 1 (ii)].  The trough 12 for cooling water, and associated structures are described in Specification 621,892. Specifications 12067/13 and 24223/13, [both in Class 1 (ii)], also are referred to.  The invention is applicable to both burned and luted chambers.
Patent GB-1114582-A (GB)
Title: Improvements relating to pump assemblies
Inventor: GIUSTI RAOLO BENVENUTO
IPC: A23G9/20
Filed: 1965-07-15
Abstract: 1,114,582. Mixing and aerating apparatus. T. GIUSTI & SON Ltd. 15 July, 1966 [l5 July, 1965], No. 30103/65. Heading BIC. [Also in Division Fl] A pump 11, Fig. 1, for producing a mixture of ice cream mixture and air for delivery to a freezing drum 1 comprises a pumping chamber for air and a pumping chamber of smaller capacity for ice cream mixture, and a common piston which acts to discharge the ice cream mixture from its pumping chamber into an adjustable quantity of air in the air pumping chamber, and then to discharge the mixture of air and ice cream mixture. In the Fig. 2 embodiment, the pump comprises an ice cream mixture pumping chamber 60 and an air pumping chamber 42. A stepped piston 24 draws ice cream mixture through valve 38 and air through adjustable valve 67 on its right-hand stroke, and, on its left-hand stroke, the ice cream mixture is transferred through a valved passage (43), Fig. 3 (not shown), into air chamber 42 and the air and ice cream mixture is discharged through valve 61. The proportion of air in the mixture is adjusted by a nut 65 controlling the spring loading on air valve 67. In the Fig. 4 embodiment, a bucket piston 73 has a valved passage 106 connecting ice cream mixture chamber 84 to air chamber 76, ice cream mixture being drawn into chamber 84 through valve 102 during the left-hand stroke and discharged into air chamber 76 during the right-hand stroke. Air is also drawn into chamber 76 through valve 121 during the right-hand stroke, and the mixture of air and ice cream mixture is discharged from chamber 76 through valve 113 during the next left-hand stroke. The freezing drum 1, Fig. 1, comprises a double-walled cylinder with its interwall space 4 included in a refrigeration circuit. A dasher 7 within the drum has scrapers 6 and is driven by a motor 17. The scrapers scrape the frozen film from the drum inner wall 2, and the dasher impels the frozen mixture towards the drum outlet 9.
Patent GB-800315-A (GB)
Title: Improvements in or relating to centrifugal governors for internal combustion engines
IPC: F02D9/00
Filed: 1956-10-04
Abstract: 800,315. Centrifugal governors. PORSCHE, F. Oct. 4, 1956 [Oct. 7, 1955], No. 30311/56. Class 57. A centrifugal governor 3 for internal combustion engines is loaded by a torsion bar 19 operatively connected to an adjusting lever 22 whereby its torsional loading may be varied. Flyweights 4 mounted on a sleeve 6 secured to the drive shaft 5 act through a control sleeve 8 and pin 7 to move a member 9 returned by a spring 10 and secured to a shaft 11 operatively connected to the engine throttle. The torsion bar 19 extends through a fork 14 pivotally mounted in the end cover 17 of the governor housing 1 and bearing through pins 13 on the control sleeve 8. One end of the torsion bar is secured to the fork 14 by a pin 20 and the other end 21 is connected to the adjusting lever 22 by means of which the governor loading is varied. The lever 22 may be fixed in any desired position by a clamping bolt (not shown). The fork 14 has an integral stop 24 thereon which, after a predetermined movement of the fork, engages an adjustably mounted helical spring 25 which provides an additional loading on the governor.
Patent GB-233297-A (GB)
Title: Improvements in or relating to supplying liquid fuel to internalcombustion engines
IPC: F02M57/02
Filed: 1924-12-17
Abstract: 233,297. Aktiebolaget Atlas Diesel. April 29, 1924, [Convention date]. Air vessels ; regulating delivery by by-passes.- .Surplus fuel by-passed through a valve 6 from the pressure side of a fuel injection pump 2 passes through an air vessel 14 on its return to the pump suction pipe 4. The air-vessel comprises an outer annular chamber 17, into which the fuel passage from the valve 6 opens; this arrangement prevents undue disturbance of the fuel in the air-space 19, and consequent aeration of the fuel therein. The by-pass valve 6 is actuated by a lever 13 driven from the crankshaft, the moment of opening of the valve 6 during the forcing stroke of the injection plunger 2 being controlled in dependence upon the load by a governor which rotates the eccentric 12 upon which the lever 13 is mounted. A spring 11 is placed between the valve 6 and its tappet 10 to ensure the closing of the valve 6 at the end of the pressure stroke of the plunger 2.
Patent GB-393841-A (GB)
Title: Improvements in apparatus for manufacturing plate glass and the like
IPC: C03B13/04
Filed: 1932-10-29
Abstract: 393,841. Glass manufacture. COMPAGNIES REUNIES DES GLACES ET VERRES SPECIAUX DU NORD DE LA FRANCE, Boussois-sur-Sambre, Nord, France. Oct. 29, 1932, No. 30434. Convention date, Sept. 15. [Class 56.] Relates to the use of perforated guide plates 1 which are fitted in the space between the rollers, or between the roller and the casting table, of a machine for making sheet glass to limit the spread of the molten glass and to retard the flow of chilled glass into the edges of the sheet formed by the rollers. According to the invention, the perforations 2 extend completely through the plates in order to allow the escape of air which is driven towards the plates by the mass of molten glass when it is poured into the machine.
Patent GB-960672-A (GB)
Title: Sheet transfer apparatus for use in conjunction with rotary colour printing machines
IPC: B41F21/08
Filed: 1962-08-09
Abstract: 960,672. Printing machines. SCHNELLPRESSENFABRIK A.G. HEIDELBERG. Aug. 9, 1962 [April 21, 1962], No. 30502/62. Heading B6C. Gripper bars 3 on a pair of endless chains 2 passing round sprockets 1 transfer sheets between couples in a multi-colour rotary letterpress printing machine, the impression roller of one of the couples being shown at 20. In order that the sheet may be properly registered each gripper bar as it approaches an impression cylinder is located in relation to the cylinder by guides 6, one of which is positioned adjacent to each end of the bar. Rollers 4, 5 mounted at each end of the gripper bar are urged into contact with the corresponding guide 6 by means of a roller 19 carried by a bell-crank lever 8. The bell-crank lever 8 is pivoted to one of the sprockets 1 at 7 and is biased by a compression spring 10 towards rotation in a clockwise direction about the pivot 7 so that when it engages between the rollers 4, 5, as shown, the latter are urged outwards against the guide 6.
Patent GB-789335-A (GB)
Title: Improvements in or relating to the production of soluble anhydrous alkali metal silicates
IPC: C01B33/32
Filed: 1955-10-25
Abstract: Alkali metal silicates are formed by mixing a material containing silica, an alkali metal carbonate and a liquid alkali metal hydroxide and reacting the mixture in a furnace to form said silicate.  The invention is described with reference to sodium silicates bu each alkali metal is mentioned.  The expression "material containing silica" includes anhydrous and hydrated silica and sodium silicates such as water glasses having a Na2:SiO2 ratio of 1:2-4, and the liquid hydroxide may be a melt of a solid hydrated or anhydrous hydroxide or an aqueous solution.  Exemplified proportions of hydroxide to carbonate range from 1 to 60 per cent and concentrations of aqueous hydroxide range from 10 to 74 per cent.  In one embodiment a mixture of soda ash and sand are fed into the trough of a pug mill and liquid sodium hydroxide added, e.g. as a molten stream directly from a caustic soda plant.  In passing through the pug mill the mixture becomes granular and damp or dry and is discharged into a furnace maintained at e.g. 1200 DEG  or 1370 DEG  C. by gas or oil burners and the liquid product discharged.
Patent GB-710261-A (GB)
Title: Improvements in or relating to control arrangements for gas turbines and other primemovers
Inventor: SMITH ALFRED JOHN
IPC: F02C9/28
Filed: 1950-12-14
Abstract: 710,261. Fluid-pressure servomotor-control systems. ROLLS-ROYCE, Ltd. Dec. 10, 1951 [Dec. 14, 1950], No. 30588/50. Drawings to Specification. Class 135. [Also in Group XXXV] The swash-plate fuel pump described in Specification 577,016 is controlled by the barometric device described in Specification 583,487, which according to this invention has an additional loading from a solenoid energized in accordance with the speed of a gas-turbine engine (see Group XXXV].
Patent GB-193462-A (GB)
Title: Improvements in or relating to the construction of expanding brakes for motor cycles or the like
IPC: B62L3/00
Filed: 1921-11-17
Abstract: 193,462. Reilly, A. H., and Humphries & Dawes, Ltd. Nov. 17,1921. Blocks acting on drums. - In a motor-cycle brake in which a pair of expansible segments are mounted within a drum b at one end of the hub a, access of grit &c. from the drum to the bear-' ing q is prevented by a felt or other soft washer t arranged between the bearing disc r and the plate c which carries the brake segments. The ends of the segments engage a pivot pin f and they are expanded by a cam i on a rock shaft j. The segments are normally drawn together by two pairs of springs o secured to pins n on central webs m.
Patent GB-1272156-A (GB)
Title: Production of mixed acyl metal alcoholates
Inventor: SCHADE HUBERT
IPC: C07C51/41
Filed: 1970-06-24
Abstract: 1,272,156. Metal acyl alcoholates. LEUNAWERKE WALTER ULBRICHT VEB. 24 June, 1970, No. 30664/70. Heading C2C. Mixed acyl metal alcoholates of general formula Me<SP>1</SP>Me<SP>2</SP>(OR) x (Ac) y , wherein Me<SP>1</SP> is sodium, lithium, potassium, magnesium, calcium, zinc, copper, nickel and cobalt and Me<SP>2</SP> is aluminium, antimony, titanium, tin or zirconium, OR is an alcoholate in which R is alkyl C 1  to C 18 , Ac is a monobasic organic acid radical C 1  to C 22  and X and Y are dependent on the valency of the metals, are prepared by reacting anhydrous metal carboxylates with the metal alcoholates in the presence of a solvent. Solvents such as anhydrous alcohol, aliphatic or aromatic hydrocarbons, dimethyl formamide, higher ethers, dioxane or tetrahydrofuran may be used. Examples describe the preparation of compounds from sodium acetate, sodium palmitate, magnesium acetate, zinc acetate, calcium acetate, ferric acetate with aluminium isopropylate.
Patent GB-863841-A (GB)
Title: Improvements relating to dart board games
Inventor: GRAHAM ALLAN RALPH
IPC: F41J3/00
Filed: 1958-09-25
Abstract: 863,841. Dart boards. SALTER Ltd., T. July 27, 1959 [Sept. 25, 1958], No. 30698/58. Classes 132(2) and 132(3). A dart board 2, conveniently of coiled paper, is secured by a pin 3 to the face of a back board 1 so that when the back board is suspended in the vertical position, the dart board can rotate about a horizontal axis. When a dart becomes secured to the dart board in any position hot in the vertical plane containing the axis of rotation of the dart board, the dart board spins under the weight of the dart, and an indicator 5 projecting from the edge of the dart board indicates a score on a circle of numbers 4 or other scoring symbols provided on the back board. If desired the indicator can be stationary and marked on the back board and the scoring symbols can be marked on the rotatable dart board.
Patent GB-1067996-A (GB)
Title: Swivel joint for conduits
IPC: E21B17/05
Filed: 1964-08-04
Abstract: 1,067,996. Rotary joints; bearings. FMC CORPORATION. Aug. 4, 1964 [July 29, 1963], No. 30843/64. Headings F2A and F2G. A swivel joint for conduits comprises a coupling member 11 having a cylindrical outer surface 14 provided with an annular recess defining an inner raceway 16, a retaining ring 42 rotatably arranged in circumscribing relation to the surface 14 and having a plurality of circumferentially spaced apertures 44, an annular outer bearing 40 circumscribing the ring and having an outer raceway 70, balls 85 individually captured in the apertures 44 and engaging the raceways, a coupling member 20 coaxial with the member 11, and bolts 72 connecting the bearing 40 and the member 20. The bearing 40 is split on the diametral plane of the raceways and the parts 52, 54 are interchangeable when, due to axial forces F1, F2 imposed on the joint the raceway of the part 54 becomes impressed with dimples. The balls 85 are disposed in the ring 42 at randomly-spaced intervals. Greaseretaining seals 80 are arranged on either side of the ring 42. An annular seal 30 of resiliently flexible and compressible material provided with a facing 32 of polytetrafluoroethylene and an anti-extrusion ring 34 is received in a groove 27 of the member 20. The latter is provided with pressure relief ports 25.
Patent GB-1277903-A (GB)
Title: Liquid epitaxial growth of semiconductor materials using flux encapsulation
Inventor: ROWLAND MICHAEL CHARLES
IPC: C30B19/12
Filed: 1969-06-18
Abstract: 1277903 Epitaxial growth of crystals NATIONAL RESEARCH DEVELOP CORP 8 July 1970 [18 June 1969] 30887/69 Heading BIS In a process for epitaxial growth of semiconductor crystals from a solution of the semiconductor compound, a layer of an inert liquid is used to cover the free surface of the solution. The seed crystal is an orientated slice cut from a single crystal ingot. The inert liquid may be boric oxide, silica, phosphorus pentoxide or a halide of the alkali or alkaline earth metals. The preparation of gallium phosphide is described.
Patent GB-225073-A (GB)
Title: Improvements in yarn doubling machines
IPC: D01H13/04
Filed: 1923-12-10
Abstract: 225,073. Higginson, J., and Arundel, Coulthard, & Co., Ltd. Dec. 10, 1923. Thread guides.-Pot guides c for yarn-doubling machines are provided with ribs d, e, which engage the spaced rods a, b forming the traverse or guide rail, and are secured by a plate g, which bridges the rods, and a screw f.
Patent GB-947729-A (GB)
Title: Improvements in or relating to work holding means
Inventor: CULL WILLIAM
IPC: B23B31/22
Filed: 1961-08-29
Abstract: 947,729. Machine tool details. BIRFIELD ENGINEERING Ltd. Aug. 28, 1962 [Aug. 29, 1961], No. 31014/61. Heading B3B. In a work-holder comprising a grooved member 8 arranged coaxially with a ball-cage member 13 which is adapted to receive a workpiece, a ring of balls 15 engaging the corresponding grooves in the member 8 and being retained in the cage member by a flat spring 17, the grooves are so formed that the longitudinal axes thereof lie on a conical surface coaxial with the members 8 and 13 and means are provided to produce relative axial movement of said members so that the grooves engage the balls with a wedging action to urge them away from the grooved member to the gripping position. The work-holder is mounted in the sleeve 1 of an indexing head rotatably mounted as by bearings 2 in the body of a machine 3. The indexing head comprises a draw sleeve 19 and indexing sleeve 1, the sleeve 1 being axially fixed. The grooved member 8 is bolted to the flange 4 of the indexing sleeve 1. The draw sleeve 19 is connected to the rear end of the cage member 13 by a claw coupling 25, 26, the other end of the sleeve 19 being screwed to the rear end of the piston-rod 6 of a fluid-pressure piston and cylinder assembly. A ring of return springs 20 urges the piston 6 and hence the cage member 13 forwardly to the non- gripping position. The grooves are of elliptical cross-sectional shape so that each ball has two areas of contact with the flanks of the corresponding groove. The pressure angle subtended by the two areas at the centre of the corresponding ball is of the order of 60 degrees.
Patent GB-282549-A (GB)
Title: An improved paint removing composition
IPC: C09D9/00
Filed: 1926-12-08
Abstract: 282,549. Leask, H. L. Dec. 8, 1926, Grant of Patent refused. Paints, removing.-A composition for removing paint comprises a wax and unseparated coal-tar light oil. Extra benzol and an alcohol such as methylated spirits may be added. Waxes specified are beeswax, paraffin and earth wax.
Patent GB-1449758-A (GB)
Title: Hydraulic impact device
IPC: B25D17/26
Filed: 1974-07-15
Abstract: 1449758 Lubricating; flushing in rock drills ATLAS COPCO AB 15 July 1974 [2 Aug 1973] 31205/74 Heading B3C [Also in Division B4] An hydraulic drill comprises a flush chamber 29 surrounding a tool 11 and two air pressure chambers one at the bearing 41 and the other at the bearing 24 which prevent the dust from entering into the drill. As shown flushing water enters through a pipe 32 to a chamber 29 and exits through bore 10 in drill 11. Pressure air plus lubricating oil enters through pipe 42 and channels 44-46. The pressure air exits from pipe 45, 44 into a chamber containing spring 22 and exits adjacent drill 11 and pipe 48. Air exits from the front chamber between the housing and drill 11. Bearings 17, 18 are packed with grease and kept separate from the air and water supplies. A rotary motor 16 is supplied. Seals 6, 7 on piston-rod 4 prevent movement of unwanted fluids and particles to and from the hydraulic drive section 2.
Patent GB-1534307-A (GB)
Title: Drive mechanism for magnetic recording/reproducing apparatus
IPC: G11B15/10
Filed: 1976-01-27
Abstract: 1534307 Cassette recorder I BAN 27 Jan 1976 [12 Feb 1975 16 April 1975] 31242/76 Divided out of 1534306 Heading G5R The description is included in that of Specification 1,534,306 but the claims relate to the reel drive arrangement.
Patent GB-1010845-A (GB)
Title: A driving wheel for track laying vehicles
IPC: B62D55/096
Filed: 1962-08-15
Abstract: 1,010,845. Endless track driving sprockets. ROBIN-NODWELL Mfg. Ltd. Aug. 15, 1962, [Oct. 26, 1961] No. 31291/62. Heading B7H. A driving sprocket wheel for an endless track vehicle comprises a pair of driving sprockets 11 of resilient material whose teeth 27 engage the grousers 32 of the endless track, a pair of sprockets 12 of steel whose teeth assume driving engagement with the track grousers under conditions of strain and a spacer ring 20 welded to the sprockets 12 which are welded to the rim 16 of a wheel flange 15 whose hub is connected to a driving shaft. The sprockets 11 are held in place by bolts 22 passing through steel collars 25 vulcanized to the sprockets, and holes in the sprockets 12.
Patent GB-882902-A (GB)
Title: Improvements in apparatus for the recording of signals on magnetic tape and their reproduction from such records
IPC: H04N5/782
Filed: 1960-09-12
Abstract: 882,902. Monitoring magnetic tapes; television. FERNSEH G.m.b.H. Sept. 12, 1960 [Sept. 11, 1959], No. 31315/60. Class 40 (2). A television tape 5, the VF signals on which are recorded in normal manner by heads carried on a drum 4, is continuously monitored by playback heads on a drum 7, driven in common with the drum 4 by a motor 6 and by a viewing means 11, the tape-path between the drums being varied by a movable tape guide 14 adjusted manually or in accordance with control information contained in the record, an initial pre-set adjustment being provided by making one or other of the shafts 8 collapsible by means of a nut 21. To prevent cross-talk between the two sets of heads, the drums are separated by the motor 6, the shafts 8 are non-magnetic and the heads on the drum 7 are constituted by gapmounted Hall plates (Fig. 4, not shown) which are more readily screened than are wound heads.
Patent GB-313160-A (GB)
Abstract: 313,160. B÷hme Akt.-Ges., H. T. June 9, 1928, [Convention-date]. Yarns &c., treating with liquids. - Wetting- agents for use in the textile and allied industries are made of sulpho-fatty acids esterified in the sulpho or carboxyl groups, or both, by means of alcohols with the exception of glycerol, and may be used in admixture with substances facilitating solution. The wetting-agent is prepared by treating a fatty acid such as ricinoleic acid with a sulphonating agent, alcohol being added before, during, or after the treatment.
Patent GB-1314219-A (GB)
Title: Brushless dc motors
IPC: H02P6/16
Filed: 1970-06-29
Abstract: 1314219 Electric motors SPERRY RAND CORP 29 June 1970 [23 July 1969] 31389/70 Heading H2A A control circuit for a brushless D.C. motor having a plurality of stator windings, e.g. W 1 , W 2 , W 3 , comprises a respective switching stage, e.g. 35, 37, 39, for energizing each winding, and is arranged to energize the windings sequentially, current being prevented from flowing through one switching stage when an adjacent stage is energized. In the circuit shown each switching stage is controlled by an optical rotor position sensor, e.g. 25, and includes an amplifiying transistor, e.g. 45 and a gate circuit, e.g. 51, for energizing the associated winding. The three sensors are associated with a lamp 23, Fig. 1 (not shown) and an arcuate opaque screen (19) fixed to the p.m. rotor (15) of the controlled motor. The light beam is of a width just sufficient to illuminate two sensors simultaneously. Circuit operation.-Assume, under starting conditions, that sensors 25, 27 are illuminated. Sensor 25 will receive current through diode 53 and the collector resistor of transistor 61. Transistor 45 will saturate and operate gate circuit 51. The collector voltage of transistor 45 will be sufficiently low to prevent conduction of diode 59 and so stage 37 will not operate, even though sensor 27 is illuminated. When sensor 25 is no longer illuminated stage 37 will operate and the collector voltage of transistor 55 will prevent stage 39 from operating. The windings are thus energized sequentially, one at a time. A modification, Fig. 4 (not shown) suitable for forward and reverse motor rotation includes two sensors in each switching stage, one for forward and one for reverse rotation, connected to an adjacent stage through diodes, as in Fig. 3.
Patent GB-1041149-A (GB)
Title: Surface coverings and process for their production
IPC: B29C44/12
Filed: 1964-08-04
Abstract: 1,041,149. Laminates. RHONE-POULENC S.A. Aug. 4, 1964 [Aug. 13, 19631, No. 31390/64. Heading B5N. A surface covering material comprises a sheet 2 to 20 mm. thick of closed-cell fire-resistant cellular elastomer having a density of 0À2 to 0À6 covered by a fabric reinforced fire-resistant protective elastomeric layer 2 to 10 mm. thick. The protective layer is preferably provided with anti-slip projections. The surface covering materials are preferably made by forming a protective sheet with anti-slip reliefs by moulding a self-vulcanizing silicone layer in a polyethylene mould, incorporating a glass fabric reinforcement in said layer, vulcanizing the silicone by the action of water and bonding the said element to a cellular elastomer sheet. The specified cellular material is a synthetic rubber. The glass fabric is preferably pre-coated with primer.