baber/WOPTO huggingface dataset:
Patent GB-374004-A (GB)
Title: Improvements in or relating to motor mowing machines of the lawn-mower type
IPC: A01D34/47
Filed: 1931-02-21
Abstract: 374,004. Lawn-mowers ; land rollers. BRECKNELL, H. E. F., Tangent Works, Keynsham, near Bristol. Feb. 21, 1931, Nos. 5521 and 31767. [Classes 6 (i) and 6 (ii).] In a motor mowing machine of the lawnmower type, which is adapted to be used as a roller, the power plant is mounted on a bedplate or auxiliary frame detachably secured on the machine and is provided with starting mechanism which drives the motor shaft through multiplying gear and is normally protected by a guard member forming a lever for actuating the driving clutch, the arrangement being such that the starting mechanism is inaccessible when the clutch is operative and movement of the guard into inoperative position disengages the clutch. The bed-plate 15 is connected to the side plates 10 of the machine by four studs 16 and carries the motor 17, magneto 18, exhaust silencer 20, the fuel tank, and the carburetter, &c. It is removable without disconnecting any driving connection such as a chain. The crank shaft 21 carries a flywheel 22 to which is connected an extension shaft 23 passing through a sleeve 30 supported in bearings 31, 32 in a bracket on the bedplate. The sleeve 30 is connected by driving pins and slots to a sleeve 28 integral with a clutch member 27 normally pushed into frictional contact with a driving member 26 on the shaft 23 by a light spring 65. A spur pinion 36 on the sleeve 30 near the bearing 31 drives a larger spur wheel 37 on a countershaft, which drives the roller 11 and rotary cutter 12 through chains 41, 40 and sprocket wheels 43, 42, of considerably less diameter, respectively, than the roller and cutter. A separate clutch may be provided for disengaging the cutter 12. The motor-starting mechanism comprises a shaft 47 movable endwise against the action of a spring 53 to carry a spur wheel 50 into engagement with a pinion 24 on the shaft 23. The spring 53 bears against an eye 51 on the clutch-operating yoke 52 through the other end of which passes a shaft 58 provided with stop nuts 64 and with a member 59 which normally covers the end of the starter shaft 47 in such a manner that the starting handle cannot be fitted on to it. The guard member 59 forms the clutch lever and when it is raised a pin 60 on the shaft 58 rides up a cam surface 61 and moves the shaft endwise against the action of a spring 62, thus moving the yoke 52 and disengaging the clutch. According to the first Provisional Specification the rotary cutters may be driven by chain gearing direct from an extension of the crank shaft of the engine, and the starting mechanism may consist of a drum around which a cord is wound.
Patent GB-267907-A (GB)
Title: Process of producing active silicic acid
IPC: C01B33/152
Filed: 1927-02-26
Abstract: 267,907. Bachmann, W. March 18, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Metal polishes for precious metals consist of emery-paste mixed with very voluminous silica of high adsorption capacity obtained by reacting silicon fluoride with a limited amount of water. The silicon fluoride may be reacted with steam or water in the form of a spray, which may be mixed with air. Alternatively, the silicon fluoride may be introduced into a solution of hydrofluosilicic acid which acts as a diluent of the water.
Patent GB-489392-A (GB)
Title: Improved method and means for operating trimming or balancing flaps on the control surfaces of aircraft
IPC: B64C9/10
Filed: 1937-02-25
Abstract: 489,392. Controlling aircraft. BOULTON PAUL AIRCRAFT, Ltd., and CLARKE, W. H. V. Feb. 25, 1937, No. 5634. [Class 4] In means for controlling either or both trimming and balancing tabs hinged to aircraft-control surfaces, a lever 5 is hinged to the frame of and is disposed wholly within the control surface 2, the lever is operatively connected to the tab and is connected to a member 4 which passes into or is attached to a fixed part 1 of the aircraft, the connection being at or in the vicinity of the hinge axis of the surface, the displacement of the connection from the axis along the lever determines the movement of the tab consequent upon movement of the surface. In one form, the surface 2 is pivoted to the part 1 by a hinge pin passed through interleaving brackets and the member 4 is slidable in a bracket carried by the part 1. In a modification, the member 4 is pivoted to the lever 5 so that it is in line with the rod 8. In a further form, the lever is formed with bifurcated arms, the arm 18, Fig. 8, being formed by a slot in which the end of the member 4 is engaged and the other arm carrying a pivot pin 9 which is connected to the rod 8. In this case, the bracket through which the member 4 slides is displaceably mounted on a screwthreaded bolt.
Patent GB-230445-A (GB)
Title: A process for local treatment of the surface of electric insulators
IPC: H01B17/50
Filed: 1925-03-02
Abstract: 230,445. Porcelainfabriken Norden Aktierselskabet. March 5, 1924, [Convention date]. Pottery.-The surfaces of parts of electric insulators to be joined together or to metallic parts by cement are prepared by being coated, before the parts are burnt, with a slip made of the insulator material into which crushed burnt material of the same nature is either stirred before or sprinkled after the coating operation, and the parts are then burnt. A rough surface suitable for the cement to adhere to is thus produced. Gum may be added to the slip. To allow for expansion in the cemented joints, a coating of plastic material, for example a bituminous compound, may be. applied to the slip-coated surfaces after burning but before cementing.
Patent GB-994295-A (GB)
Title: A device for actuating valve automatically at predetermined intervals
IPC: B65D83/16
Filed: 1964-02-11
Abstract: 994,295. Valves. ROBERTSHAW CONTROLS CO. Feb. 11, 1964 [March 20, 1963], No. 5769/64. Heading F2V. A timing device for effecting a spray discharge from a pressurized container having a tilt-type discharge valve 22 comprises a housing 36 mounted on the container, drive means 60 in the housing having a rotary output 66 of predetermined speed, cam means 62, 64 driven by the drive means, cam follower means 68, 70 extending across the valve and pivoted at 74, the cam follower being caused by the cam means to tilt the valve periodically and effect a spray discharge 100 therefrom of predetermined duration. The housing is connected to the container by arcuate spring fingers 44 engaging an annular moulding 20 and is closed by a serrated end cap 92 which is also used to wind a spring in the drive means 60. A one-way clutch and a gear train connect the latter to the cam means which tilt the valve 22 periodically through one arm 70 of the follower means.
Patent GB-1495647-A (GB)
Title: Method for the preparation of derivatives of spiro-(4,5)-decane and derivatives thus obtained
IPC: C07D498/10
Filed: 1975-02-11
Abstract: 1495647 1 - Oxa - 2 - oxo - 3,8 - diaza - spiro- 4,5-decane derivatives BUSKINE SA 11 Feb 1975 [12 Feb 1974] 5852/75 Heading C2C Compounds of Formula I wherein R is a benzyl, beta-phenyl-ethyl, 3<SP>1 </SP>- 4<SP>1</SP> - methylendioxy - (beta - phenyl - ethyl), beta - (p - fluoro) - phenyl - ethyl, beta - phenoxy-ethyl, cinnamyl, diphenyl-methyl, beta- (31 - trifluoromethyl) - phenyl - ethyl group, and R<SP>1</SP> is hydrogen or phenyl are prepared by reacting an N-R substituted piperid-4-one according to the Reformatykij modified method with a compound R<SP>1</SP>-CH(X)-COOC 2 H 5  where X is halogen to give a compound of Formula VI which is reacted with excess hydrazine to give a compound of Formula VII which is rearranged by the Curtins reaction to give compounds of Formula I above.
Patent GB-212098-A (GB)
Title: Photographic lens hood
IPC: G03B17/12
Filed: 1923-02-28
Abstract: 212,098. Turner, A. R. Feb. 28, 1923. Lens fittings.-A lens hood A is made of flexible metal in the form of a tube with the forward portion below the axis cut away, and having a gap in its periphery so that it may be sprung on to lens mounts of various sizes. An extension-piece G, Fig. 2, is fitted on its upper surface, having turned-up edges H slidably engaging the horizontal edges B of the hood. A swaging E is formed on the rear of the hood to engage the lens mount, and is covered with protective material such as tape or braid.
Patent GB-636334-A (GB)
Title: Improvements in bolt anchors
IPC: E21D21/00
Filed: 1947-02-28
Abstract: 636,334. Anchor bolts. BEIJL, Z. S. Feb. 28, 1947, No. 5882. [Class 89 (i)] Anchor bolts for use in mining as described in Specification 554,077, [Group X], or tunnelling as in Specification 596,408 have split sleeves expanded at both ends by the bolt. The bolt 1, Fig. 1, 'has a conical member 2 screwed up to the end of the thread or otherwise made fast to the bolt, and a pyramidal nut 3 engaging inclined flats 8 on the parts 4 of a segmental sleeve held together by ring springs 11. Lips 9 on the segments engage the end of the nut 3 and the segments are roughened at 5 to grip the bore 6. When the bolt is screwed up the cone 2 rotates with it but the nut 3 is held from rotation by the flats 8 and the sleeve is expanded at both ends. Instead of flats, flutings may be provided on the nut and segments. In deep holes two anchors as above may be used in tandem the bolts being connected by a tapped tubular extension piece that screws with a locking action against the nut 2 of the inner anchor and is used to expand that anchor before the outer anchor is applied, the lips 9 may be dispensed with on the outer anchor, a washer and spring being interposed between the end of the extension piece and the nut 3 of the outer anchor.
Patent GB-398735-A (GB)
Title: Improvements in and relating to methods of preserving food and apparatus therefor
IPC: A23L3/3418
Filed: 1933-02-27
Abstract: 398,735. Preserving food. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of King. R. E. ; 306, Arcadia Court, Fort Wayne, Indiana, U.S.A.) Feb. 27, 1933, No. 5915. Convention date, Feb. 27, 1932. [Class 49.] In a process for preserving food in which air having a temperature between 35 and 45‹ F. and a relative humidity between 80 and 85 per cent is circulated by a fan 3 over the food at a velocity between 20 and 300 feet a minute, the cooling element 2 for the air operates at a temperature close enough to the temperature of the air in the food preserving cabinet 1 to produce or maintain the required humidity.
Patent GB-348248-A (GB)
Title: Improvements in the manufacture and production of 1.3-butylene glycol
IPC: C07C31/20
Filed: 1930-02-22
Abstract: In the production of 1.3-butylene glycol by the catalytic reduction of crude aldol with hydrogen or gases containing at least 80 per cent of hydrogen, the first stage of the reaction is carried out at temperatures of 30-80 DEG  C., higher temperatures being employed, if desired, to complete the conversion, and the reaction mixture is kept acid throughout the process.  The acidity is preferably maintained by the addition of organic acids such as acetic acid.  Diluents, for example, water, aliphatic mono- or polyhydric alcohols such as methyl, ethyl, and butyl alcohols, glycols, and glycerol, or dioxane may be present.  Suitable catalysts are the metals of the first and eighth groups of the periodic system alone or in admixture, if desired with the addition of activators such as platinum.  An activated catalyst may be made by dissolving basic nickel carbonate in a solution of ammonia and ammonium carbonate, adding a small quantity of platinum chloride, soaking granular silica gel with the solution, and reducing with hydrogen at 300 DEG  C.  According to an example, the reaction is carried out under a pressure of 90 atmospheres in a vertical column charged with a catalyst consisting of finely divided metallic copper deposited on pieces of silica gel. A mixture of crude aldol and ethyl alcohol acidified with acetic acid to pH 4.8 is introduced at the top of the column, where it is heated to about 80 DEG  C.  Hydrogen also entering at the top of the column forces the liquor downwards over the surfaces of the catalyst, and the reaction product is withdrawn at the foot of the column after being heated to a temperature of 120 DEG  C. in the lower part thereof.  The catalyst may be regenerated in the reaction vessel by drying, oxidizing with air at 250 DEG  C., and reducing the copper oxide formed with hydrogen.
Patent GB-1524295-A (GB)
Title: Reinforced rubber composite stuctures
IPC: B29B15/00
Filed: 1976-02-18
Abstract: 1524295 Rubber-metal laminate for tyre reinforcement MONSANTO CO 18 Feb 1976 [19 Feb 1975] 05994/78 Divided out of 1524294 Heading B5N A laminate comprises an elastomeric body having a plurality of steel ribbons bonded therein by means of a bonding promoter for rubber, many of which are specified, the ribbons being spaced substantially parallel to each other in side by side relationship. Each ribbon has a substantially rectangular cross-section, a tensile strength greater than 14,062 hg./cm.<SP>2</SP> and a microstructure of tempered martensite, bainite or a mixture thereof. Such a laminate may be prepared by applying treated steel ribbons to a sheet of unvulcanized rubber, overlaying the ribbons with a further sheet of unvulcanized rubber and vulcanizing the assembly.
Patent GB-586153-A (GB)
Title: Improvements relating to triggered spark gaps
IPC: H01T2/02
Filed: 1943-04-15
Abstract: 586,153. Spark-gaps. BRITISH THOMSON-HOUSTON CO., Ltd., WILKINSON, K. J. R., and SCOTT, T. H. April 15, 1943, No. 6088. [Class 39 (i)] A triggered spark-gap, for example of the kind described in Specification 580,003, has one or more perforated plates 8 interposed between the main electrodes 1, 2 in order to increase the voltage range over which reliable triggering occurs. The plates are of insulating material such as fired soapstone and they are effective both in deionizing at high voltages and in producing corona at the lower voltages. A blast of air is blown transversely through openings 4, 5.
Patent GB-349553-A (GB)
Title: Confection dipping machines
IPC: A23G3/24
Filed: 1930-02-24
Abstract: 349,553. Confection-dipping machines. STOVER, R., 1648, East 50th Street, Chicago, U.S.A. Feb. 24, 1930, No. 6127. Convention date, Feb. 23, 1929. [Class 28 (i).] In confection - dipping machines wherein the dipping is done by hand, a tray conveyer mechanism is adapted automatically to move cooling trays 7 into the proximity of dipping trays 2, 3, the movement being intermittent and capable of being varied according to the speed of the operator. The machine comprises an electrically heated reservoir 2a, rails 5, 6 for the trays 7 which move from tray racks 8, 9 into cooling tunnels 10, 11 respectively. The trays are engaged by lugs 18 on chains 17 driven by sprocket-wheels 20. A motor 22, Fig. 3, continuously drives a vertical shaft 27 carrying an agitator 12 in the reservoir. An oscillating motion is given to a link connection 31 by crank arms 29 being intermittently engaged by a cam 28 fixed on the shaft 27. By means of a friction shoe 36 periodically gripping each driving wheel 34 through the action of the link connection 31, the oscillatory motion is converted into an intermittent rotation in one direction of the driving wheel and of the sprocket wheel 20 which is fixed on the same shaft 21. A weightcontrolled cam prevents the driving wheel from being rotated in other than one direction. The degree of oscillation of the link connection 31 and therefore the rate of travel of the trays is regulated by a cam-shaped disk 37 which is adjusted by calibrated dials 38 on the front of the machine. Trays emerge from a slotted opening at the bottom of each tray rack, and as they pass an operator they receive dipped articles. The trays then pass through the cooling tunnel 10 or 11, and those from the front tunnel 10 are removed for storage, whereas those from the rear tunnel 11 pass down a shoot 42 to a delivery platform.
Patent GB-1240674-A (GB)
Title: Improvements in data printing apparatus
Inventor: MASON FREDERICK PERCIVAL
IPC: H04L21/00
Filed: 1968-02-08
Abstract: 1,240,674. Electric selective signalling. CREED & CO. Ltd. 5 Feb., 1969 [8 Feb., 1968], No. 6304/68. Heading G4H. Characters represented by received binary signals are recorded in mosaic form on a continuously rotating drum 3 for subsequent printing. The signals representing a line of characters are spaced from the next by a "new line" signal. To ensure a substantial margin at the start of each line recorded on the drum the received signals pass to a store 6 from which they are read out to the drum at a slightly higher speed. Unit 2 converts the store output to such a form that a selected one of the recording heads 4 records each character in mosaic form. Read out head 8 generates clock pulses from a scale on the drum, the pulses incrementing counter 9 and passing to unit 10. When a "new line" signal is detected by unit 7 the next head 4 in turn is selected and counter 9 reset. When, say, 3 clock pulses have been counted, the subsequent pulses read out store 6 character by character, and hence there is a 3-character-width margin at the start of the recorded line.
Patent GB-215495-A (GB)
Title: Furnaces for melting and casting
IPC: F27B19/04
Filed: 1923-03-05
Abstract: 215,495. Benjamin, G. H. March 5, 1923. Tunnel furnaces; hearths. -Apparatus for carrying out on a commercial scale the method of melting, pouring, and casting described in Specification 170,995, [Class 83 (i), Casting &c. metals], comprises a tunnel kiln having a melting section A and a casting section B divided by a door 7. Melting furnaces 8, which may be resistance furnaces, resistance arc furnaces, or arc furnaces, are arranged to be moved along the kiln by means of projections 10 on chain belts 9. Section A of the kiln is heated by combustion chambers 20, Fig. 4, in-which gas and air are introduced in the usual manner. Section B is heated around the casting boxes 24 by electric heaters 23, Fig. 5. For tilting the furnace, a laterally extending plate. 17 coacts with a laterally extending arm 18 movable vertically by a rack and pinion 19. Inert gas such as nitrogen may be introduced, or the interior of the kiln exhausted at 26.
Patent GB-1342055-A (GB)
Title: Frames fitted with castors
IPC: B60B33/02
Filed: 1972-02-10
Abstract: 1342055 Castors HAPPE & CO 10 Feb 1972 [11 Feb 1971] 6325/72 Heading A4U [Also in Division F2] A rectangular frame, particularly for a hospital bed, is mounted on centrally controlled castors, the wheels 8 of the castors being lockable against running and/or swivelling and, preferably, the wheel of one of the castors being lockable so that it will steer in a selected direction. The frame comprises hollow side supports 1, connected by cross bars, and hollow front and rear legs 2, 3 welded to the supports around apertures 1' through which pass thrust rods 18 which also pass through apertures 24 in a U- section control rod 15 and are constrained by pivoted guide members 22 to move vertically, when the rod 15 is moved, on rollers 17, longitudinally in the support 1 by external acutating levers 16, 17. The levers 16, 17 are pivoted at 29 on a fixed bearing plate 28 and have tabs 16', 17' which engage a pin 30 on the rod 15. Each castor fork 7 is rotatably mounted in a stem 4 fastened in a castor leg, and a two-armed leaf spring 9, mounted in the fork, has a Z-shaped link 11 movable by a control pin 10 to spread the legs of the spring so that they engage, respectively, the periphery of the wheel and detents in the bearing plate 12 to lock the wheels against running and swivelling. When the actuating levers are in the position shown in Fig. 3 the control rod is in an extreme rightward position the control pins 10 are in their lowermost position and three of the castors are locked against running and swivelling the fourth castor, which differs constructionally, being locked against running but free to swivel (See Fig. 10). Lowering of the lever 16 to the position shown in Fig. 1 entrains the lever 17 for partial downward movement and moves the control rod 10 leftwards to raise the pins 10 releasing all of the wheels for running and swivelling. The lever 16 is bow-shaped and extends along both side supports 1 of the frame, and the lever 17 is provided only at that side of the frame at which the fourth castor is provided, play between the fork end 16" and the pin 30 allowing movement of the control rod 15 further left ward, by manual lowering of the lever 17, so that the fourth castor wheel is locked in a selected steering position, Fig. 8. In a modification, the web of the U-shape control rod is directed upwards.
Patent GB-938599-A (GB)
Title: Improvements in or relating to freewheels
IPC: B62M9/10
Filed: 1961-02-21
Abstract: 938,599. Ratchet clutches. ETABLISSEMENTS M. DUBAN. Feb. 21, 1961 [Feb. 23, 1960], No. 6354/61. Class 80 (2). A freewheel hub for cycles &c. comprises sprockets 3, 4, 5, 9 mounted on a driving member 2 of a freewheel device which is supported on a driven member 1. The sprockets 3-5 are retained axially between a shoulder 2<SP>2</SP> of the driving member and a shoulder 9<SP>1</SP> formed on the sprocket 9 which is screwed to the member 2. The sprockets 3-5 are spaced apart by distance rings 6 or by integral flanges 5<SP>1</SP>, and are drivingly connected to the member 2 either by the member having a non-circular section, such as circular with one or more flats, engaging in corresponding bores in the sprockets, or by a jamming roller or like coupling transmitting rotation in one or both directions between the sprockets and the member 2. As shown in Figs. 2 and 6, the member 2 is circular in section and rollers 7 are mounted in recesses 10 in the sprockets having sloping faces 101, 10<SP>2</SP> to lock the sprockets for both directions of rotation. Only one sloping face is provided in each recess if the sprockets are to be locked for one direction of rotation only. In a bi-directional locking device shown in Fig. 10, the member 2 has flats 2<SP>4</SP> and the sprockets have corresponding recesses 14 in each of which a jamming roller is mounted. To enable the member 1 to be unscrewed from a hub, a bifurcated spring clip (Fig. 11, not shown), is provided having limbs engaging in aligned grooves 2<SP>5</SP>, 1<SP>2</SP> in the driving and driven freewheel members to hold them together so that the assembly can be unscrewed by a fetter key acting on the pinion 3. If the ends of the clip limbs engage the screw threads of the hub the clip will remain in place in the grooves 2<SP>5</SP>, 1<SP>2</SP> during the unscrewing. The freewheel can be converted into a fixed wheel in a similar way.
Patent GB-291429-A (GB)
Title: Improvements in and relating to rapid transport railways
IPC: B61B1/02
Filed: 1928-02-29
Abstract: 291,429. Kruckenberg, F. June 2, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. Transferring persons to or from trains in motion. - In a high-speed railway system, in which entry into and exit from the vehicles is effected by means of moving platforms, escalators are provided at each end of the platforms, which may be arranged in a series with progressive speeds. The exit escalator may connect with a return escalator and moving platform for passengers unable to board the trains.