baber/WOPTO huggingface dataset:
Patent GB-576194-A (GB)
Title: Improvements relating to road and other vehicles
IPC: B60S1/68
Filed: 1944-04-22
Abstract: 576,194. Removing ferrous metals from roads. GREENWOOD, H. S. April 22, 1944, No. 7504. [Class 107] [Also in Group XXXII] A device for removing nails or other loose ferrous metal objects from a roadway or wheel track comprises one or more magnets yieldingly supported in close proximity to the road surface. The device may be attached to the bumper bar of a vehicle or be arranged in front and behind the rear wheels of a vehicle or it may be applied to a road sweeping machine in which case a row of magnets is arranged across the vehicle and in advance of the sweeping brushes. As shown, a row of magnets 10, which may be of the kind described in Specification 545,398, [Group II], is attached to the lower edge of a bar 11 having side arms 12 suspended by pivots 13 from a collision guard and extends across the vehicle or across each wheel. The magnets may be arranged with small gaps between adjacent magnets or may be arranged side by side with like poles in contact and the magnets may be arranged in rows or in banks. The Provisional Specification states that the magnets may be mounted on a telescopic frame extended by a compression spring enclosed within one of the parts.
Patent GB-723741-A (GB)
Title: Improvements in and relating to waveguides
Inventor: HUDDART DONALD HARRY ALDERLEY
IPC: H01P5/22
Filed: 1953-03-16
Abstract: 723,741. Wave-guides. BRITISH THOMSON-HOUSTON CO., Ltd. March 16, 1953 [March 24, 1952], No. 7520/52. Class 40 (8). Apparatus for combining the outputs of two high-frequency generators comprises a waveguide ring 5, coupled input guides 1, 3 from the generators and output guides 2, 4. The apparatus resembles a conventional " rat race " of circumference 3#/4 except that the angles between the guides 1 and 2 and between 2 and 3 is less-than 60 degrees, i.e. they are separated by a distance of less than #/4. Under these circumstances there is coupling between the inputs 1 and 3 which is used to maintain the two generators on a common frequency. Almost the whole of the power appears at the output 4, but there is a small amount of leakage from the output 2 depending upon the relative phase and amplitude of the inputs. The leakage from 2 can be fed to a monitoring device. To obtain the best standing wave ratio the angle between the input 1 and the output 4 is made greater than 180 degrees measured in a clockwise direction.
Patent GB-1465528-A (GB)
Title: Adherent film forming high internal phase ratio emulsions
IPC: A61K9/70
Filed: 1974-02-19
Abstract: 1465528 Compositions comprising a high internal phase thixotropic emulsion PETROLITE CORP 19 Feb 1974 7578/74 Headings A5B and A5E A cosmetic or pharmaceutical formulation comprises a high internal phase thixotropic emulsion, free of thickening agents, the emulsion having the characteristics of a solid when at rest and of a liquid when a force is exerted on it; the emulsion containing an emulsifying agent, an emulsifiable oil and a non-oil, the emulsion being an oil-in-non-oil or a non-oilin-oil emulsion, the internal phase of the emulsion being present in an amount of at least 80% by volume of the emulsion, the emulsion containing at least one agent which is a cosmetic agent or a medicinal agent. The formulation may contain a U.V. absorber, talc, petrolatum, an insect repellant such as dimethyl formamide or diethyl toluamide, a moisturising agent, an anti-perspirant, a rubbing alcohol, a hair protective agent, hydrocortisone, tresaderm, benzoyl peroxide, colloidal sulphur or an analgesic agent.
Patent GB-350447-A (GB)
Title: An improved aluminium alloy
IPC: C22C21/10
Filed: 1930-03-08
Abstract: Modifications of the aluminium alloys described in the parent Specification and in Specification 350,022 contain also 0,01-5 per cent of zinc.
Patent GB-492272-A (GB)
Title: Prepayment electricity meters
IPC: G07F15/00
Filed: 1937-03-16
Abstract: 492,272. Prepayment mechanism for meters. PEACH, P. C. March 16, 1937, No. 7656. [Class 27] In switch mechanism for prepayment meters, two trip levers are operated in succession under the control of the meter mechanism and release a pair of switch arms to break the supply circuit momentarily as a warning before releasing the switch arms for further movement to cut off the supply. As shown, contact arms 16, 17 fast with a pair of cams 9, 10 on a shaft 11, are adapted to bridge either contacts 12a, 13a or 12b, 13b in the supply leads 14, 15. Shaft 11 is urged to rotate clockwise under the action of a spring and its movements are controlled by rocking trip levers 4, 5 engaging in steps in the cams 9, 10 and adapted to be actuated respectively by pins 2 and 3 on a wheel 1 connected with the quantity mechanism. For the major portion of the prepaid supply, the contact arms bridge contacts 12a, 13a, lever 4 engaging step 9b in cam 9 to hold them in this position. When prepayment is nearly exhausted, pin 2 rocks lever 4 to release cam 9 so that the contact arms move round to bridge contacts 12b, 13b in which position they are held by engagement of lever 5 in a step 10a in cam 10, the circuit being momentarily interrupted during such movement. Finally, when the prepaid supply has been consumed, pin 3 rocks lever 5 to release cam 10 and the contact arms move out of engagement with contacts 12b, 13b to break the circuit. Intermediate contacts may be provided between contacts 12a, 12b and 13a, 13b so that several warning interruptions occur.
Patent GB-492278-A (GB)
Title: Improvements in or relating to electrical oscillation generators
IPC: H03K4/86
Filed: 1937-03-16
Abstract: 492,278. Valve generating circuits ; discharge apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and FEWINGS, D. J. March 16,1937, No. 7682. [Classes 39 (i) and 40 (v)] An auxiliary pair of electrodes is provided between the main electrodes of a tube used in a relaxation oscillator circuit, an auxiliary discharge, which triggers the main discharge, being set up either continuously or intermittently between the auxiliary electrodes. In the embodiment shown in Fig. 1, a pair of identical time base circuits 9, 6 and 10, 7 are connected to a supply 8 and to the main electrodes 2, 3 of the tube 1. Auxiliary time base circuits 11, 13 and 12, 14, 15 are arranged to produce an auxiliary discharge between auxiliary electrodes 4, 5 just before the main discharge is ready to occur. The duration of the auxiliary discharge is controlled by resistance 15 and is adjusted to terminate just after the main discharge terminates to speed-up deionization of the main discharge path. Synchronizing pulses are applied over lead 16. The auxiliary discharge may be continuous in which case the auxiliary electrodes are rings, or are a ring and point respectively and are arranged in the path of the main discharge, Fig. 3. The condensers 13, 14 in the auxiliary time base circuits are not provided but the auxiliary discharge is deflected into and out of the path of the main discharge by energy supplied to the coil or coils 28, this energy being derived directly or indirectly from the synchronizing signals. In both embodiments saw tooth waves are taken off through condensers 17, 18, bias to the deflector plates being supplied if required as indicated over leads 29, 30. A bias of half the maximum potential of the plates is suggested to avoid trapezium distortion.
Patent GB-200868-A (GB)
Title: Improvement in the manufacture of fuel-briquettes
IPC: C10L5/16
Filed: 1922-03-16
Abstract: 200,868. Hall, A. F. van. March 16, 1922. Composition fuel.-Coal-slack &c. is briquetted with pitch as binder by working up the coal with molten pitch in a heavy edge-runner mill at temperatures below, the melting point of the pitch. A crude mixture of the constituents may first be produced in a malaxator, the required plasticity then being obtained by treatment in the heavy edge-runner mill.
Patent GB-215901-A (GB)
Title: Improvements in or relating to carrier boxes
IPC: B65D5/18
Filed: 1923-03-17
Abstract: 215,901. Barnes, W. T. March 17, 1923. Folding boxes formed from special blanks. - A folding carrier box is formed from a blank a, Fig. 3, scored at b to form strips a<1> - - a<4> which, when turned at right-angles to the blank and secured at the corners, form an all-round flange, as shown in Fig. 4, while the parts of the flange bordered by two transverse scores b', arranged at equal distances on each side of the centre line of the blank, are diagonally scored at b<2> and the outer triangles c between such scores are removed. The halves of the box can thus hinge on the bottom or intermediate portion bounded by the scores b<1> to telescope the side and end flanges of one half into the flanges of the other half with the scored parts of the side flanges a<1>, a<2> automatically folding inwards to leave no apertures at the ends. The box is carried by cord handles e, Fig. 2, threaded through eyelets d and the side flanges are scored at b<3> so that the box can be collapsed as shown by the dotted lines in Fig. 4.
Patent GB-1277696-A (GB)
Title: Apparatus for the maintenance of a ground surface
Inventor: ZINCK EUGEN
IPC: E01C23/085
Filed: 1970-02-18
Abstract: 1277696 Apparatus for maintenance of ground surfaces E ZINCK 18 Feb 1970 [18 Feb 1969] 7717/70 Heading A1B An apparatus for the maintenance of ground surfaces formed from loose materials, such as sports ground hard courts, comprises a chassis means 1 to be moved over the ground in direction 14; and a frame 9, resiliently connected to it at 8, carrying loosening tools 10 mounted on a bar 13 and oscillation means 19. This means 19 comprises a rotatable shaft 20 carrying an excentric weight 21 and causes the tools 10 to oscillate in a plane transverse to to the direction 14. Relative vertical adjustment is possible between bar 13 and a stop bar 15 which limits the penetration of the tools and smooths the surface. The tools themselves can be adjusted vertically with respect to the bar 13. The resilient connections 8 limit the transmission of vibrations to the chassis means.
Patent GB-209643-A (GB)
Title: Improvements in shock absorbing mechanism
IPC: B62K25/24
Filed: 1923-03-17
Abstract: 209,643. Bailey, S. L. March 17, 1923. Vibration-dampers.-In shock-absorbers of the kind comprising a cylinder with a piston having expansible bands or segments which are moved radially outwards against the walls of the cylinders by wedge action to provide the required frictional resistance to the movement of the piston, the friction bands or segments are expanded under a resilient pressure which is wholly independent of the forces which cause relative movement of the piston with the cylinder. In the form which is shown in Fig. 1 as applied to the forks of a motor bicycle, the segments E of friction material are confined between two conical discs C, D compressed together adjustably by a spring F mounted on a stud in the piston-rod. In the modification shown in Fig. 4, the friction segments N are confined between the cylinder and spring-pressed segmental shoes M and between upper and lower washers C<2>, D<2>.
Patent GB-825337-A (GB)
Title: Feeding mechanism for sewing machines
IPC: D05B27/22
Filed: 1958-03-11
Abstract: 825,337. Sewing machines. SINGER MANUFACTURING CO. March 11, 1958 [April 12, 1957], No. 7775/58. Class 112 A sewing machine feed bar is mounted for pivotal movement about and translatory movement along an axis disposed parallel to the direction of work feed, to provide feed lift and feed advance movements respectively. A plate-like feed bar 30 carries at one end a feed dog 28 and has secured to its other and forked end a U-shaped bracket 33, to provide a pair of jaws 34 which embrace a horizontal rod 35 disposed parallel to the line of feed. The feed bar can thereby pivot about and slide along rod 35. A plate 36 mounted inside a cylindrical bed 11 is formed with bearing lugs 39, 40. A pitman 41, pivoted at 42 to lug 39, is forked at one end to embrace a feed lift eccentric 43 on a rotary shaft 16, and is connected at its other end by a link 44 to a block 49 secured by a screw 51 to the feed bar. The height of the feed dog may be adjusted by turning the eccentrically formed pivot 48 between link 44 and block 49. A shaft 52 journalled in lugs 39, 40 has secured thereto a rock frame 55 formed with bearing lugs 56, 57. Ball members 62 carried by the latter are engaged in apertures 63, 64 in the feed bar. A shaft 58 journalled in lugs 56, 57 has secured thereto one end of a link 60 to the other end of which is clamped a pivot pin 67. One end of pin 67 is journalled in the upper end of a pitman 65 the lower end of which embraces a feed advance eccentric 66 on shaft 16. The other, and eccentric, end of pin 67 is journalled in a slide block 71 disposed in a slotted guide 72. The latter is carried by a shaft 73 ,angular movement of which serves to vary the inclination of guide 72 for adjusting the stitch length. The feed dog may be centred by turning pin 67.
Patent GB-834956-A (GB)
Title: Process for making fire-resistant cellular vinyl aromatic polymer articles
IPC: B29C44/34
Filed: 1958-03-11
Abstract: Scrap from the working of cellular polystyrene and other thermoplastics containing fire retardants such as halogenated hydrocarbons, and expanded by a normally gaseous expanding agent, is recovered by hot pressing the scrap to form a dense sintered product, heating to melting at 190-280 DEG  C. to liberate volatile constituents and returning to the process for making the cellular fire-retardant material.  Specified thermoplastics are polystyrene, polyvinyl toluene, polystyrene with 2-10% of natural or synthetic rubber, copolymers of styrene with 5-30% of alpha-methyl styrene, acrylonitrile or methylmethacrylate, or copolymers of any two or more of styrene, vinyltoluene, vinyl xylene or isopropylstyrene. Specified fire retardants are tetrabromoethane, alpha - beta - dibromoethylbenzene, ar - chloro-alpha, beta - dibromoethylbenzene, 1,2 - dibromopropane, 1,2 - dibromobutane, 1,2,3-tribromopropane or tetra-bromopentane in a quantity of 1 to 10% by weight of the polymer.  Methyl chloride is used as expanding agent.  Expansion is effected by extruding a compounded mobile gel at 100 DEG  C. into the atmosphere.ALSO:In a process for the continuous production of shaped articles of cellular thermoplastic material wherein a thermoplastic vinyl aromatic polymer, e.g. polystyrene, at a plastifying temperature of 120 DEG 250 DEG C and a normally gaseous blowing agent soluble in the polymer, e.g., methyl chloride, are mixed, in the proportion of 5-25 parts of the blowing agent to 100 of the polymer, under pressure and cooled to 60 DEG -130 DEG C., the gel so formed is continuously extruded under pressure sufficiently decreased to expand the gel, and the cellular material so formed is cut and trimmed to the shaped articles, the scrap material from the cutting and trimming is collected, sintered by pressure at a temperature of 90 DEG -160 DEG C., and heated to melting between 190 DEG  and 280 DEG C to liberate volatile constituents, and the plastic material remaining on removal of the volatile constituents is returned for mixture with the blowing agent in the proportion stated.  1-10 parts of an organic flame-proofing compound, e.g. sym-tetrabromo-ethane may be incorporated during the mixing of the polymer and the blowing agent.
Patent GB-1071234-A (GB)
Title: Fuel injection apparatus
IPC: F02M59/32
Filed: 1965-02-23
Abstract: 1,071,234. Hydraulic intensifiers. HONDA GIJUTSU KENKYUSHO. KABUSHIKI KAISHA. Feb. 23, 1965 [Feb. 25, 1964], No. 7854/65. Heading F1P. An hydraulic intensifier arrangement (Fig. not shown) comprises a main cylinder (1) in which is reciprocated a free piston (2) having two subsidiary cylinders formed therein, each of which co-operates with a stationary piston (4) provided in the adjacent end wall of the main cylinder (1), the arrangement being such that a pump (14) supplies pressurized fuel oil alternately to each end of the main cylinder to reciprocate the piston (2) whereby oil trapped in the opposite and smaller subsidiary cylinder (5) is intensified in pressure and flows past a non- return valve (30) to a fuel injector (8) of an I. C. engine. The oil is supplied alternately to each end of the main cylinder (1) by a continuously rotating rotary distributing valve (13) which causes alternate connection of lines (12) leading to the cylinder ends to the pump (14) or a sump (18). Assuming the left hand line (12) is connected to the pump (14), oil acts on the annular end of the free piston (2) to move it to the right. Movement to the right opens a port (9) in the piston and hence oil pressure acts over the entire left hand end surface of the piston (2) so that oil in the right hand subsidiary cylinder (5), after closure by the piston (2) of the right hand port (9), is pressurized and flows via a passage (6) in the piston (4) to the right hand non-return valve (30). Subsequent closure of the right hand line (23) by the continued movement of the piston (2) cushions the stroke. Each piston (4) has a rack (10) engageable by a pinion (11) rotatable to adjust the axial position of the piston. A pump (27) for supplying lubricant to the moving surfaces of the free piston (2) and the valve (13) is provided. The distributing valve may be of a reciprocating type.
Patent GB-140452-A (GB)
Title: Improvements in and relating to three-phase alternating-current dynamo-electric machines
IPC: H02K17/14
Filed: 1920-03-18
Abstract: 140,452. Siemens - Schuckertwerke. April 23, 1918, [Convention date]. Motors, controlling.-The number of poles of a three-phase winding is changed in the ratio of 2 : 1 by reversing the direction of current flow through certain of the coil-groups and at the same time changing over the connexions of the phase windings from star to delta for the purpose of keeping constant the magnetic induction at the air-gap. Fig. 1 shows a two-layer winding with a coil-width s substantially equal to the smaller pole-pitch, the coil-groups of the different phases being indicated by different kinds of lines and marked a1, a2; b1, b2; c1, c2, respectively. To obtain the larger number of poles, all the coils of each phase are joined in series and the three phases are interlinked in star-connexion, as shown in Fig. 2. To change over to the smaller pole-number, the direction of current in every other coil-group is reversed, and the phase connexion is altered to delta, as shown in Fig. 3; in this figure, the positive direction of current flow is indicated by full lines and the reverse direction by double lines. Instead of series-connexion of the coil-groups, these may be connected in parallel.
Patent GB-723210-A (GB)
Title: New quaternary ammonium salt and process for its preparation
Inventor: BARBER HARRY JAMES
Filed: 1951-04-06
Abstract: The invention comprises hexamethylene-1,6-bis-trimethyl ammonium bitartrate.  It is preferably made by forming the di-ammonium salt of 2,2-dihydroxy-1,1-dinaphthylmethane-3,3-di-carboxylic acid (embonic acid) which is sparingly soluble in water and treating a hot aqueous solution thereof with tartaric acid to precipitate insoluble embonic acid leaving the required bitartrate in solution.  The initial embonate is made by metathesis from the corresponding quaternary ammonium sulphate or halide and a water-soluble embonate, c.f. Specification 723,203.  Thus hexamethylene diamine may be alkylated and quaternated with a methyl ester and to the acid-freed crude reaction mixture from which solids (if any) have been removed a water-soluble embonate is added, the embonate thereby precipitated being isolated and converted to the desired bitartrate by treatment in aqueous solution with tartaric acid or an acid salt thereof.  The bitartrate may also be made from the corresponding bisulphate by treatment with caustic soda to produce the quaternary hydroxide which is reacted with tartaric acid.  In examples, (1) hexamethylene diamine is treated in aqueous sodium carbonate solution at below 90 DEG  C. with dimethyl sulphate, cooled to 0 DEG  C., filtered, the filtrate treated with embonic acid and sodium hydroxide and the precipitated embonate is isolated, dissolved in water, and treated at the boiling point with tartaric acid, the precipitated embonic acid being removed and the bitartrate recovered from the filtrate by treatment with ethanol after concentration; and (2) 1,6-bis-(N - dimethyl) - hexamethylene diamine in methanol is treated with dimethyl sulphate and the bisulphate isolated is converted to the quaternary hydroxide by means of caustic soda and the hydroxide or treatment with tartaric acid yields the bitartrate.
Patent GB-709277-A (GB)
Title: Improvements in or relating to paint removing tools
IPC: B44D3/16
Filed: 1951-04-07
Abstract: 709,277. Scrapers. COX, P. C., and MAXWELL, S. A. April 7, 1952 [April 7, 1951], No. 8109/51. Class 61 [Also in Group XI] A base plate 1 of an electrically heated paint scraper has one end bent over to form a trailing scraper blade 2 of which the working edge is of a length less than the width of the plate 1. The plate is heated by a resistance element 4 clamped by a plate 5 and is covered by a member 7 which may, e.g. be glazed or polished on its internal surface or house a reflector. A heat and electric insulating shield 13 is mounted above the cover 7. The handle may be longer than the cover 7 or may be of L-shape and be securable in either of two positions longitudinally of the cover. The blade may be curved upwardly and rearwardly of the trailing edge of the plate 1 to enable more paint to be removed at one stroke. Alternatively, the blade may be slotted to allow paint to pass through. The blade may be made detachable and blades having working edges of varying shapes and/or sizes may be provided.
Patent GB-496360-A (GB)
Title: Improvements in wringer safety releases
IPC: D06F45/04
Filed: 1938-03-16
Abstract: 496,360. Machinery guards. LOVELL MANUFACTURING CO. March 16, 1938, No. 8115. Convention date, March 17, 1937. [Class 80 (iv)] In pressure-release devices for wringers the actuating parts when set are in neutral or preferably slightly un stable equilibrium anc are easily and quickly actuated by positive trip mechanism. Three forms are described, in all of which the thrust of the pressure spring 10 is taken by a detachable top piece 13, one end of which is allowed to rise when the safety device touched by the operative. In the first form, Fig. 2, a lever 16 is pivoted to the piece 13 at 17 and is connected to a stile 2 by a link 18. A catch 29, 22, 23, is slidably attached to the lever 16 and is adapted to be held in set position with the lever 16 vertical by a lip 24. If a longitudinal bar 33 is pressed by the workman the end 29 of the catch is depressed, the latch 23, 24 is released, and the pressure on the bar together with that of the spring 10 ensures that the toggle formed by the pivots 20, 19, 17 is broken so that the parts spring up into the position shown, with immediate release of pressure on the rolls 6, 4. In the second form, Fig. 9, if a handle 43 pivoted to the top 13 is pressed, locking lugs 47 are raised to release a latch 34 engaging, by means of surfaces 38, lugs 39 on the top 13, the inclination being such that it is near the critical angle of frictional resistance. If the latch be slightly unstable it will now release ; if not, further action is provided by an extension 49 which engages cam surfaces 50 on the underside of the handle-lever 40, 43, continued movement of which starts the latch 34 toward the release. In the third form, Fig. 13, one end of the top 13 is held down by a pivoted latch, hooks 57 on which engage notches 52 on the stile. An extension 58 on the latch passes through a V-shaped slot in a slide 60. In set position the extension presses either unstably on the top edge of the slot at the bottom of the V or stably on the bottom edge, depending on the inclination of the edges of the hooks 57. Pressurerelease is effected by moving the slide 60.