baber/WOPTO huggingface dataset:
Patent GB-209698-A (GB)
Title: Improvements in rotative harrows
IPC: A01B33/06
Filed: 1923-02-14
Abstract: 209,698. Lefebvre, L. Jan. 12, 1923, [Convention date]. Rotary-tool implements; lifting main frames manually.-A circular harrow adapted to be rotated about a vertical axis on wheel-supported frame is provided with means for adjusting the arms carrying the wheels so as to raise or lower the harrow and wheeled frame together. The harrow frame comprises rings 6b, 6c carried by arms 6a projecting from a disc 6 which is mounted on a vertical shaft 5 driven from the wheel 14 by worm and chain gearing and a shaft 9. The front part of the ring 6c rests on adjustable rollers 11. The wheel 14 is carried by an arm 12 loosely mounted on the shaft 9 and adjustable by means of a lever 16 and locking-quadrant 18. The other wheel is carried by an arm projecting from a shaft mounted in line with the shaft 9, and is also adjustable by means of a lever and quadrant. The rectangular main frame 1 is provided with converging front bars 2 ending in an eye 3 which receives a hauling-chain, a swing bar, or the pin of a fore-carriage. For travelling on roads the gearing is disconnected and the harrow raised by turning the wheel-carrying arms into vertical positions.
Patent GB-440462-A (GB)
Title: Improvements in internal combustion hammers
IPC: B25D9/10
Filed: 1935-02-11
Abstract: 440,462. Percussive drills. DEHN, F. B., 103, Kingsway, London.-(Gas Tool Patents Corporation ; 1801, Winnemac Avenue, Chicago, U.S.A.) Feb. 11, 1935, No. 4382. [Class 124] An internal-combustion percussive tool has its piston 36 forced downward by the explosion and returned by a spring 45. The anvil block 18 is received in a casing 17 separated by a heat insulating ring 17a from the cylinder. The lower end of the cylinder is surrounded by the fuel tank 52. The handles 14 are supported from a ring 16 secured to fins on the cylinder. The tool is started by forcing down the piston by the push rod 47. The exhaust port 26 is directed downwards. The piston has a hardened striker 37.
Patent GB-143604-A (GB)
Title: Improvements in or relating to incandescent gas lights
IPC: F21H1/00
Filed: 1919-02-21
Abstract: 143,604. Willner, S. Feb. 21, 1919. Incandescent gas burners; mantles.-The incandescent body of a gas burner consists of a self-supporting shell or a flat disk of refractory material comprising a mixture or blue ball clay, thorium nitrate, and mica, preferably in a powdered state, with or without magnesia. In the form shown, a dome-shaped shell D is provided with perforations D<2> and with lateral lugs or pins D<1> for attaching it by a bayonetfastening or otherwise to the burner. The incandescent body may contain .80 per cent of blue ball clay, 10 per cent of thorium nitrate, and 3 per cent of mica, with or without 7 per cent of magnesia. The burner is constructed so that the fiame corresponds in external shape to the internal surface of the shell. The Provisional Specification also states that the burner tube may taper outwardly towards its outlet end, and a: plate with holes which taper inwardly towards its outlet end is fitted a short distance within theoutlet end of the burner tube. The lugs on the incandescent shell engage bayonet-slots in the cylindrical outer end of the burner tube. The shell may be disk-shaped with a domed lower surface and a flat upper surface, and is provided with preferably segmental-shaped apertures. Magnesia may be introduced into the shell in the form of a plate. Apertures in the burner tube just above the disk assist in the escape of the combustion products.
Patent GB-1025397-A (GB)
Title: Improvements in stage lighting systems
IPC: H05B37/02
Filed: 1963-02-04
Abstract: 1,025,397. Stage lighting systems. ALLMANNA SVENSKA ELEKTRISKA A.B. Feb. 4, 1963 [Feb. 5, 1962], No. 4407/63. Heading H2H. The lamp group 1 of a stage lighting system is fed from taps on auto-transformers 3, 3<SP>1</SP>, which are energized from a dimming device comprising a potentiometer 4 whose sliding contact 5 varies the ratio of the voltages applied to transformers 3, 3<SP>1</SP>, movement of the contact 5 to an end position to shortcircuit the transformer 3 or 3<SP>1</SP> causing closure of contacts 2 or 2<SP>1</SP> to short-circuit the secondary side of the short-circuited transformer, whose tap setting may then be altered without disturbing the lighting system. Fig. 2 shows an arrangement in which the light group 1 is connected to transformers 3, 3<SP>1</SP> through binary relay systems 7, 8, 9 and 71, 8<SP>1</SP>, 9<SP>1</SP>, which may be controlled in a predetermined sequence by a press-button contact system 12<SP>1</SP> or by a system 12 comprising a pivoted arm 121 movable to cause its contacts 125 to bridge contacts 122, 123 connected to the relays. Alternative control of the relays is provided by contacts 10, 10<SP>1</SP>. The light group 1 may be connected to the supply 6 through rheostats 11, 11<SP>1</SP> instead of transformers 3, 3<SP>1</SP>, each rheostat being common to several circuits, if desired. The rheostat 11 may be remotelycontrolled by the arm 121 through a potentiometer 124 incorporated in the contact system 12 and connected to the terminals 115, 116 of rheostat 11. By suitable dimensioning, a setting of potentiometer 124 will correspond to that of the relay system 7, 8, 9 and contact system 12, and thus a desired setting for this system may be made through potentiometer 124 with contacts 10 open, subsequent closure thereof switching the light group 1 from the rheostat 11 to the transformer 3. Automatic control of the relay system 7, 8, 9, may be achieved by recording a desired lighting sequence with terminals 14 connected to the punch apparatus of a punch-card system, and then connecting these terminals to the reading contacts of the system when reproduction is required. Such an automatic programme may be interrupted by opening contacts 10 and transferring to the manually-controlled system 12. The dimming device 4 may also be automatically controlled through a punch-card system.
Patent GB-676609-A (GB)
Title: A wash dolly
IPC: D06F17/12
Filed: 1951-02-23
Abstract: 676,609. Washing-dollies. TANZER'S ORIGINAL - GRUDEOFENFABRIK GES. Feb. 23, 1951 [Feb. 24, 1950], No. 4433/51. Class 138 (ii). A wash-dolly of the type comprising a ribbed body and a piston pump therein has its ribbed body formed of a number of individual ribs separated by distance rings, such rings being arranged concentrically of the pump cylinder so as to provide a cylindrical space which can be used for the passage of air from the top of the cylinder into the wash liquid. As shown, the pump cylinder 1 is surrounded by ribs 11-14 spaced by rings 6-10, the whole assembly with end caps 3, 4 being held together by a number of bolts 5 located in the cylindrical space 21. The piston 2 has a foot 17 which rests on the bottom of the wash tub, and is normally held at the bottom of its stroke by spring 19. When downward pressure is applied to the dolly, flap valve 22 closes and the entrapped air passes through port 15, cylindrical space 21 and port 16 into the washing liquor, whilst washing liquor enters the bottom of the cylinder through ports 25, 24.
Patent GB-663228-A (GB)
Title: Process for separating or degreasing and separating the component parts of articles such as machines or parts thereof which have become cemented together by corrosion
IPC: C25F1/04
Filed: 1949-02-18
Abstract: 663,228. Separating corroded parts electrolytically. ROBERTS, S. T., SMITH, P. G. T., and DESHAW RECLAMATION PROCESS, Ltd. May 12, 1950 [Feb. 18, 1949], No. 4543/49. Class 41. A method of separating, or degreasing and separating component metal parts of assemblies comprising male and female parts that have become seized together by corrosion, consists in connecting one or more female parts only of the assembly to a terminal of an electrolytic circuit in an alkaline bath. After the parts have been loosened, the male parts may also be connected to the terminal. The bath may contain 25 to 65 ozs. of sodium hydroxide per gallon of solvent, and 1 to 20 ozs. of sodium cyanide, and may also contain materials having a wetting or detergent action, for example, sodium metasilicate or tri-sodium phosphate. Specifications 555,269, 556,302 and 663,217 are referred to.
Patent GB-215840-A (GB)
Title: Improvements in or relating to valves in pipe couplings
IPC: F16K15/06
Filed: 1923-02-16
Abstract: 215,840. Garratt, E. A. Feb. 16, 1923. Oil supply.-An oil burner safety connection comprising a pipe coupling provided with a lift valve having a tubular ported stem sliding through a casing into contact with a removable member, has the tubular stem and the part of the burner with which the burner makes contact formed to make a liquid tight joint. In the form shown, the valve member 10 is pressed to its seat by a spring 15 bearing against a ported plug 17 screwed into the casing 5. The convex end of the tubular stem projects slightly above the end of the casing and is ground to co-operate with a corresponding concave surface on the burner 27 so that the final movement in connecting the burner opens the valve. This may be effected by a set screw, bayonet catch, or cam action.
Patent GB-141848-A (GB)
Title: Automatic variable choke and jet carburettor, for petrol engines
IPC: F02D9/00
Filed: 1919-02-25
Abstract: 141,848. Dabbs, F. T. Feb. 25, 1919. Spray carburettors.-One-half of the choke-tube is formed by a block D which moves transversely under the action of the engine suction on a piston H connected to the block by a slot H<3> and pin O<1>. The block D, in moving, uncovers, successively, supplementary fuel nozzles E, which are supplied with fuel, as is the nozzle F, by a passage X. A needle-valve P controlling the flow from this passage is adjusted in accordance with the position of the block D by means of a finger N attached thereto and arranged to operate the valve- P through a rocking lever Q. The pivot of the lever Q can be raised or lowered by means of a rock and pinion V, providing a further adjust-- ment of the fuel supply arranged to be operated from the dash-board.
Patent GB-933057-A (GB)
Title: Improvements relating to hydrocarbon fuels
IPC: C10L1/188
Filed: 1960-02-11
Abstract: A fuel composition consists essentially of a gas oil having an initial boiling point not substantially higher than 250 DEG C. and a final boiling point not substantially lower than 330 DEG C. and containing at least 0,1% by weight of n-paraffins higher than C22, the said gas oil having dissolved therein 0,05 to 0,5% by weight of the composition of a fatty acid or mixture of fatty acids having 10-30 carbon atoms per molecule.  Suitable acids include stearic acid, fatty acid, residual flake and wool wax fatty acid.
Patent GB-912345-A (GB)
Title: A new or improved automatic position-controlling system
Inventor: ROBINSON KENNETH ARTHUR
IPC: G05B19/35
Filed: 1959-02-12
Abstract: 912,345. Electric selective signalling systems. LANCASHIRE DYNAMO ELECTRONIC PRODUCTS Ltd. Feb. 8, 1960 [Feb. 12, 1959], No. 4946/59. Class 40 (1). An electrical position controlling system comprises a series of pick-offs arranged to be rotated at different speeds with the movement of a controlled member to produce output signals representing the position of the member in different denominational values, a series of input generators producing denominational signals representing the required position of the member, and a servo-system responding to the differences between the two sets of signals in successively smaller denominations to position the member. A machine tool work-table 2, Fig. 1, is positioned by two servo-systems operating in mutually-perpendicular directions. A servomotor 7 drives a screw 5 and also three inductive pick-offs (described in Specification 912,344) 8, 9, 12, Fig. 2, geared together in a 10 : 1 relationship. The desired position of the table is set up on rotary switches 15, 16, 17, representing units, tens and hundreds, respectively. The ten contacts of each switch are supplied with phase-displaced signals from corresponding terminals on a transformer 18, and each switch arm is connected through a tapped resistor 155 whose arm 154 is mechanically connected to the switch arm of the next lower order. Thus a signal having a phase displacement equivalent to the combined settings of switches 17 and 16 is compared in a comparator 22 with a corresponding signal from pick-off 12 representing the actual position of the work-table, and the output is fed through a sequence controlling circuit 23 to a control amplifier 24 which controls the excitation of a Ward-Leonard generator 25, driving the servomotor 7 either forwards or backwards in dependence upon the polarity of the signal. The circuit 23 (Fig. 3, not shown), ensures that signals of higher denomination override all deviation signals of lower denomination until the member approaches the desired position within the range of control of the fineadjustment pick-offs 9 and 8.
Patent GB-568178-A (GB)
Title: Improved collapsible baby carriage
IPC: B62B7/10
Filed: 1943-03-26
Abstract: 568,178. Collapsable vehicles. HOLTER, A. (Hafner, E.). March 26, 1943, No. 4965. [Class 108 (i)] A collapsable baby carriage having arm rests 8 capable of being folded down as shown in the left-hand part of end elevation, Fig. 5, has the rests connected by toothed segments 6, 7 to wheel-carrying arms 11, 12 so that the folding-down of a rest swings a wheel 13 underneath the body. A back-rest 61 carried by a frame 58 removably pivoted at 59 in a slot is supported in use by pins 60 engaging in one of hooks 54 of levers 53 pivoted to a bracket 52 rotatable on frame rod 50. The back-rest is turned backwardly from its normal position between the armrests 8 (which are retained in the position of use by the back-rest to allow the rests to be turned down). A foot-rest assembly 69, 71 &c. is then folded down on to the body and the back-rest and a collapsible handle 36 afterwards folded down over the rest 8. The back-rest and the footrest are interchangeably mounted.
Patent GB-557157-A (GB)
Title: Improvements in or relating to vacuum milking apparatus
IPC: A01J5/04
Filed: 1942-04-29
Abstract: 557,157. Milking machines. PACKMAN, P. J., WHATLEY, L. H., and MILES, F. G. April 29, 1942, No. 5040/43. Divided out of 557,140. [Class 84] Milking apparatus comprises a container 11 and pipes 51, 52 delivering milk into a counterpoised receptacle 25 mounted within the container, the receptacle having an outlet 29 through which milk 'escapes into the container 11. A closure plate 27 carried by the receptacle constitutes a valve regulating the opening 19 of the pipe 13 leading from the source of suction. Constant vacuum is maintained through a pipe 14 on the sucker rings of a teat cup, such as that described in Specification 557,140. Pulsations are applied through the pipes 51, 52 by a reversing motor as described in Specification 557,158..
Patent GB-452370-A (GB)
Title: Improvements in or relating to wrapping and packing paper and like material
IPC: B65D65/40
Filed: 1935-02-16
Abstract: 452,370. Embossed paper &c. SMITH, STONE, & KNIGHT, Ltd., and SMITH, T. P., 84, Colmore Row, Birmingham. Feb. 16, 1935, No. 5043. [Class 96] [See also Group XVI] Pliable straw paper, thin cardboard, &c. for packing bottles, &c. is embossed &c. with spaced, hollow, indentations and incorporates papermakers' " pitch " (i.e. bitumens and solid &c. residues from oil &c. distillation insoluble in alcohol, &c.). The " pitch " may be added to the paper pulp, or applied molten to the paper before embossing by steam-heated rolls, by a bath, &c. or two or more plies of paper may be simultaneously treated so as to retain between them " pitch " which is forced into the interstices by pressure, e.g. of steam-heated embossing rollers, one or both of which may have projections 18 &c. Alternatively the paper may be embossed by dies and conform generally to the shape of the bottles.
Patent GB-1400307-A (GB)
Title: Electromechanical filter
IPC: H03H9/50
Filed: 1973-02-01
Abstract: 1400307 Electromechanical filters INTERNATIONAL STANDARD ELECTRIC CORP 1 Feb 1973 [4 Feb 1972] 5078/73 Heading H3U In an electromechanical filter comprising a plurality of resonators (2, 4) Fig. 1 (not shown), vibrating flexurally parallel to a base-plate (1), supported at the nodes by wires (6) and coupled by wire (5), electrostrictive transducers (3) being provided, the area of the weld whereby resonators and the wire 5 are interconnected is adjusted during filter manufacture to compensate the changes in filter characteristics which would otherwise occur due to changes in the physical properties, due to batch variations, of the constituent resonators, and coupling wire. For cylindrical resonators 4, Figs. 2a, 2b, the effective inter-resonator coupling length l k1 , l<SP>1</SP> k1  is varied, by varying the depth of penetration of the wire into the resonators during welding, by varying the welding pressure, temperature, or time, thus varying the weld area. For resonators with longitudinal flatted areas 4a, Figs. 3a, 3b adjacent the coupling wire 5, the sensitivity of filter characteristics to which penetration, and hence to welding conditions, is less, the effective length l k2 , l<SP>1</SP> k2  varying to a lesser degree than in Figs. 2a, 2b for given wire penetration. Reference has been directed by the Comptroller to Specification 1160507
Patent GB-581132-A (GB)
Title: Improvements in or relating to ceramic articles and methods of making the same
Filed: 1942-04-17
Abstract: A dense, hard, ceramic article, exhibiting conchoidal fracture under impact, consists of 90 to 99 per cent. alumina 0.6 to 6 per cent silica, and 0.4 to 4 magnesia but without fluxing or bonding agents. The alumina &c., may be wet ground for 10 to 60 hours in a pebble or ball mill until the particles are, e.g., 0.8 to 50 microns in size and are substantially colloidal or mechanically hydrated; it is then filtered, dried at below 600 DEG C. and may be moistened, broken up or shaped as by a pugging mill &c. and fired at 1,200 to 1,600 DEG C. in an oxidizing, inert, or reducing atmosphere to produce articles or grains.  The ceramic oxide should be substantially free from oxides of iron, titanium, and silicon as present in bauxite, but may be coloured by compounds of p  vanadium, chromium or manganese, and the ground intermediate product may be used as a bonding agent for other ceramics.  Reference has been directed by the Comptroller to Specification 551,421.
Patent GB-577644-A (GB)
Title: Improvements in or relating to apparatus for administering inhalant gases
IPC: A61M16/10
Filed: 1944-03-20
Abstract: 577,644. Valves. BRITISH OXYGEN CO., Ltd., and JONES, W. March 20, 1944, No. 5132. [Class 135] [Also in Group VI] In apparatus for the administration of inhalant gases, the exhaled gases pass from the mask to a reservoir R, the casing 1 of which is formed with a cylindrical housing 26 from which depend conditioning means A, E for the gas comprising container 48 for a carbon dioxide absorbent and a container for ether &c., described in Specification 550,296. Proportioning valve drums 49, 50, mounted in the housing 26, are formed and partitioned to pass varying proportions of the gas through the carbon dioxide absorbent and ether vessel. In this respect, drum 49, coacting with ports 27, 36, 37 in housing 26 operates substantially as disclosed in Specification 577,645, port 35 communicating with the reservoir. Port 27 communicates with an inlet valve 28 comprising an outer chamber 30 and a thimble 31 communicating with an inlet socket and capped by a disc 32. Drum 50 has openings in alignment with ports 38, 38 communicating with the ether vessel, the opening which registers with port 39 being connected by conduit 64 with an opening in alignment with port 40 leading to an outlet valve 41 of generally similar construction to the inlet valve. In each valve, transparent domes 46, 47 and valve disc-retaining cages 34, 45 are provided. Oxygen or nitrous oxide is supplied via nipple 62 and duct 61 registering with a channel 63 in drum 50. Each drum is mounted on a spindle 51 passing through gland 55 and fitted with an operating knob 56.
Patent GB-845565-A (GB)
Title: Improvements in or relating to processes for producing mixed alumina/silica gels
Inventor: WORTHINGTON RALPH ERIC
IPC: B01J13/00
Filed: 1958-02-18
Abstract: An alumina-silica gel is produced by mixing kaolin with a Na or K compound and calcining the mixture, the said compound being such that a Na- or K-Al, silicate results, then dissolving in acid to bring the pH below 4 (preferably about 2), whereafter the pH is brought to 5 or above (preferably 7-10), in which condition the solution gels.  The following features are preferred:- (a) calcination temperature about 800 DEG C.; (b) aqueous sulphuric or hydrochloric acid is used; (c) use of NaOH, KOH, Na2CO3, K2CO3.
Patent GB-511583-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/34
Filed: 1938-02-19
Abstract: 511,583. Vacuum cleaners. HOOVER, Ltd. (Hoover Co.). Feb. 19, 1938. No. 5322. Drawings to Specification. [Class 8 (i)] In a vacuum cleaner having a body including a suction nozzle and an electric motor and a fan driven thereby, and front and rear supporting wheels behind the nozzle mounted on axes fixed in relation to the nozzle, propelled by a pivoted handle, the diameters and treads of the wheels and the distribution of weight and the strength of the handle-supporting spring are so chosen and related that the front wheels do not sink into the carpet more than the rear wheels when the cleaner is stationary or in operation. Specification 511,532 is referred to.
Patent GB-682918-A (GB)
Title: Improvements in end closure for knitted metallic mesh scouring devices
Inventor: KINGMAN BARCLAY ALDEN
IPC: A47L17/08
Filed: 1951-03-05
Abstract: 682,918. Riveting. METAL TEXTILE CORPORATION. March 5, 1951, No. 5325/51. Class 83 (iv). The cover end closure of a metallic mesh scouring device is fastened by an eyelet having an annular head flange and a tubular shank, the free end of the shank being split longitudinally to provide a plurality of radial in-curled fingers and claws. The cover section 10 of a ball-like scouring device has its open end gathered into a folded formation 11 which is secured by an eyelet having a head flange 13 and a tubular shank 12 (Fig. 2). The shank is split into alternate fingers and claws by means of a die 14 and a co-operating plunger 15. The die has an upstanding tapered spindle member 16 around the base of which a plurality of cutters 17 sub-divide an annular cavity 18 of concave cross-section into intermediate bending sectors 19. The folded formation 11 is pressed over the spindle 16 followed by the eyelet with its head flange uppermost, the shank passing through the folded formation 11. The plunger then forces the shank into engagement with the die and the cutters 17 split the shank into radial fingers 21, the width of the cutters and the curved top faces of the cutters curl the fingers upwardly and inwardly to penetrate the metallic mesh. Between the fingers radial claws 22 are formed by the bending sectors 19 of the die. The claws 22 abut the head flange at points outwardly spaced from the eyelet shank and the fingers 21 abut the shank at its junction with the head flange. For scouring devices of small mesh the fingers 21 may be dispensed with an only the claws 22 utilized. The eyelet may be used for attaching a label to the scouring device.