baber/WOPTO huggingface dataset:
Patent GB-1007269-A (GB)
Title: Warning devices for motor vehicle brake systems
IPC: B60T17/22
Filed: 1964-07-02
Abstract: 1,007,269. Brakes; brake systems. ADAM OPEL A.G. July 2, 1964 [July 19, 1963], No. 27340/64. Headings F2E and F2F. [Also in Division H2] The difference between the pressures in two output lines 16, 17 from a tandem master cylinder is detected by a diaphragm switch (see Division H2) which lights a bulb or sounds a buzzer. The switch comprises a diaphragm secured inwardly of its edge between the annular knife edges provided one on each half of the switch casing. The pressure difference causes the diaphragm to distort until its outer rim portion engages contacts 56 or 57 to complete an electrical circuit which lights a bulb or sounds a buzzer. The switch may be made integral with the master cylinder.
Patent GB-883439-A (GB)
Title: Improvements in or relating to electromagnetic wave transmission systems
IPC: H01P1/163
Filed: 1958-08-26
Abstract: 883,439. Waveguides. WESTERN ELECTRIC CO. Inc. Aug. 26, 1958 [Sept. 16, 1957], No. 27341/58. Class 40(8). A system for transmitting the TE 01  circular electric mode has means for coupling the mode from a first section 31 of circular waveguide to a second section 32 of circular waveguide having a smaller diameter with minimum mode conversion and filtering of spurious non-circular modes, comprising a conical tapered section formed by winding an elongated conductor 24 into a helix with adjacent turns 25, 26 spaced apart, and a jacket 28 of electrically dissipative material surrounding the helix. The turns 25, 26 are spaced apart either by an air gap 27 or by insulation surrounding the conductor 24 before it is wound. The pitch distance of the helix is less than one-quarter wavelength and is preferably such that the gap 27 between the turns is less than the diameter of the conductor 24. The helix can be a single or stranded wire of spring steel or iron plated with a highly conductive material such as copper or silver. The jacket 28 comprises a conical frustrum having its inside surface contiguous with the outermost part of the helix. The dissipative material of the jacket 28 can comprise small particles of resistive material such as iron dust or carbon black suspended in a dielectric material such as polyethylene. The jacket 28 is covered with a non-corrosive conducting shield 30 which may be of wound overlapping thin strips or of woven braid. The waveguide sections 17, 21 having the larger diameter are of long length and the waveguide sections 15, 19, 23 of smaller diameter are of short length incorporating bends and are connected to transducers 13, 14 between a repeater or transmitting station 11 and a repeater or receiving station 12. The diameter of the guide 32 can be from 1.25 to 10 times the cut-off diameter which is 1.22 # 0  where # 0  is the wavelength in free space of the longest wave in the transmission band. The effects of placing a TM filter in various parts of the transmission system is discussed. Specification 764,737 is referred to.
Patent GB-225210-A (GB)
Title: Improvements in or relating to apparatus for the continuous measurement of combustible ingredients in waste gases from furnaces and internal combustion engines
IPC: G01N27/16
Filed: 1924-11-15
Abstract: 225,210. Siemens & Halske Akt.-Ges. Nov. 20, 1923, [Convention date]. Gas analysis.-Combustible ingredients of the waste gases from furnaces and internal-combustion engines are continuously measured by an electrically heated catalytic wire made of an alloy of the platinum group (e.g., Pt-Ir, Pd-Ir, or Pt-Rh) held taut, as by a spring, and so switched into a measuring device that its resistance can be continuously read on a measuring instrument or recorded by it. As shown straight or spiral wires 9, 10 of the alloy are held taut by springs 7, 8 and arranged in pipes 2, 1, the pipe 1 containing air and the gases under test being circulated through the pipe 2; the wires are arranged in a Wheatstone bridge containing a source of current 18 and a measuring or recording instrument 17.
Patent GB-921383-A (GB)
Title: Improvements in or relating to ladders, steps, trestles and the like
Inventor: HART BRIAN HAROLD
IPC: E06C1/12
Filed: 1959-08-11
Abstract: 921,383. Ladders. F. BORAM. Aug. 26, 1960 [Aug. 11, 1959], No. 27447/59. Class 20 (2). [Also in Group XXII] A metal ladder has rungs the ends of which are cut away to form projections 2 which fit in apertures 4 and are riveted, welded or glued in position. The web of an I-section rung may form a tongue 3 to fit in a slot 5. T- and U- section rungs may be cut away to form similar projections and tongues. The stiles are of I-, T- or U-section and have resilient material 14 in dovetail recesses on the outside of the flanges to prevent slip or damage to the surface on which it rests or between sections of an extension ladder.
Patent GB-507394-A (GB)
Title: Improved roof construction
IPC: E04B5/10
Filed: 1938-09-21
Abstract: 507,394. Roofs; slabs. STANIFORTH, A. V. Sept. 21, 1938, No. 27532. [Classes 20 (iv) and 87 (i)] A roof comprises a series of spaced metal-bar supports 1, arched metal plates 4 filling the spaces between the supports, and fire-resistant moulded blocks 3 which are concavely curved on the underside and are supported on the plates. The plates 4, which may be of steel, are arched along an axis parallel with the supports 1 and are adapted to rest freely against the supports. The blocks 3 are recessed at each corner as shown at 6 to accommodate a fixing-nut and washer fitting over a screw-threaded stud 2 welded to the support. The underside of each block is recessed to provide feet at the four corners of the block, and the space 7 thereby provided between the block and the plate 4 is filled with cement grout. Each block is also provided with a projection along the top or bottom edge to engage a recess 5 in the edge of an adjacent block. The blocks are adapted to provide a plane upper surface which may be covered with a continuous layer of asphalt, one or more layers of bitumenized roofing-felt 8, or tiles or slates 9 ; if desired, and as shown in the drawing, both the felt layer 8 and tiles 9 may be provided. In order to permit nailing or screwing of the covering layer in position, the blocks may be formed of a nailable composition, such as asbestos-cement or that known by the registered Trade Mark " Lignocrete." The blocks may, alternatively, be made of a waterproof concrete, in which case the joints may be filled with cement grout and no waterproof layer need be provided. The supports 1 may be supported on main roof supports 10 by cleats 11 which are welded to the supports 1 and secured by bolts to the supports 10.
Patent GB-152532-A (GB)
Title: Improvements in apparatus for clearing yarn
IPC: B65H63/06
Filed: 1919-11-07
Abstract: 152,532. Moon, W. F. Nov. 7, 1919. Clearing-apparatus. - Means for removing lumps of fibre or " specks " from yarn comprises a series of devices which successively act on the yarn as it passes therethrough, each device consisting of a bed-block, which effects the positioning of the specks to ensure their severance by means co-operating therewith. In the arrangement illustrated in Fig. 3, each device comprises a bed-block in the form of a knife 15, and co-operating reciprocating knives 20 which maintain the thread on the knife 15 and sever the specks; in that illustrated in Fig. 8 the severing-means comprise spring- pressed knives 54 oscillated about pivots in alinement with the top surface of the bed-block 55. The yarn in passing over the bed-block turns owing to its tension and twist so that each speck is in turn presented to the bed-block by which it is moved to one side into the path of the severing-devices. In the modification illustrated in Fig. 11, the yarn in passing over guide-plates 64, 65 is turned by bevelled portions on spring- pressed blocks 67 so that the specks are deflected below the slit between the plates and are severed by reciprocating or rotary cutters 76.
Patent GB-697205-A (GB)
Title: Improvements in or relating to electric immersion heater
Inventor: LANDGRAF JACOB THEODORE
IPC: H05B1/02
Filed: 1951-11-26
Abstract: 697,205. Electric immersion heaters. HUDSON MANUFACTURING CO., H. D. Nov. 26, 1951, No. 27657/51. Class 39(iii) An immersion heater suitable for use with cattle &c. watering tanks and the like comprises an L-shaped heating element 10 consisting of a horizontal loop portion 40 and two parallel and closely spaced vertical legs 41 of which the upper ends are secured. in a housing 16. A micro switch in the housing controls current supply and is actuated by means of bellows, a motion multiplying lever, and a thermostat capsule 23. The thermostat is set by dial and cam means and the capsule 23 is clamped in a mid-position between legs 41 by two metal plates which also serve to conduct sufficient heat from the legs to the capsule which causes the heating element circuit to be broken if the heater is not immersed in a liquid. A channel-shaped shield 42 for the leg portions 41 and a screw-clamp device are secured to the housing 16.
Patent GB-744209-A (GB)
Title: Improvements relating to tampon introducers
IPC: A61F13/26
Filed: 1953-10-08
Abstract: 744,209. Tampon introducers. KURKJIAN, Y. H. Oct. 8, 1953 [Aug. 17, 1953], No. 27741/53. Class 81(2). The plunger of a tubular tampon introducer is so formed as to be able to be fitted around the tampon container during storage and transit. The appliance may be initially arranged with the plunger member 17 partially around the outside of the container tube 15, so that when it is required for use, it is merely necessary to detach the plunger, compress it slightly and insert it within the tube 15. In order to prevent relative movement between the tube and plunger when they are packed in the foregoing manner, it is further proposed to turn the two ends of the plunger inwards so as to fit around the ends of the applicator tube, see Fig. 8 (not shown). With this form the turned in end of the plunger acts as an abutment during ejection of the tampon. Reference has been directed by the Comptroller to Specification 629,952.
Patent GB-1032540-A (GB)
Title: A stereophonic sound reproduction system
Inventor: BROWN CHARLES SCOTT
IPC: H04S3/00
Filed: 1964-07-06
Abstract: 1,032,540. Stereophonic systems; loudspeaker systems. AUTOMATIC CANTEEN CO. OF AMERICA. July 6, 1964, No. 27825/64. Headings H4J and H4R. A pair of identical amplifiers 10, 11 each utilizing push-pull output stages 14, 15 are connected to the opposite ends of centre-tapped primaries 16, 17 of transformers 18, 19. The amplifiers 10, 11 are connected to a stereophonic signal source (e.g. a pick-up cartridge or tape recorder) so that the input signals to the two amplifiers 10, 11 are reversed with respect to one another. The transformers 18, 19 have identical secondaries 27, 28 each made up of three sections, and these secondaries 27, 28 are connected to three loud-speaker systems each comprising at least one loud-speaker. Speaker systems 31 and 41 face away from each other and, as described, each consists of one speaker only. The third loud-speaker system is at right-angles to the other two and consists of a tweeter 52 and a woofer 51. Speaker 31 is connected between one end terminal of secondary 27 through a capacitor 34 and to one end terminal of secondary 28. A choke 36 and capacitor 34 attenuate frequencies below 250 c/s. The circuit is completed by an earthed jumper 38. By this arrangement speaker 31 is primarily energized by winding sections 27A and 27B in series, opposed by winding section 28C. Speaker 41 is similarly connected and is primarily energized by winding sections 28A and 28B in series, opposed by winding section 27C. Speakers 31 and 41 are normally 180 degrees out of phase so that, with identical signals, they move in unison (see arrows 61, 62). The speaker system 51, 52 is energized through the winding sections 27B, 28B, the woofer 51 being connected through a low-pass filter 58, 59 and the tweeter being connected through a highpass filter 57. Speakers 31, 41, 51, 52 are housed within a single cabinet 29 and are mounted with their axes horizontal.
Patent GB-953508-A (GB)
Title: Salts of methacrylic acid polymers
IPC: C08F8/44
Filed: 1962-07-19
Abstract: Free flowing salts of homo or copolymers of methacrylic acid may be prepared by mixing the polymeric acid in pulverulent form with sufficient of an alkaline substance, which is an alkali metal hydroxide, bicarbonate or carbonate or an alkali metal oxide or hydroxide or a mixture of two or more of these substances, to neutralize at least 20% but less than 100% of the free carboxyl groups and to the mixture the quantity of an aqueous alkaline solution to neutralize the remaining free carboxyl groups of the polymer.  Preferably, the quantity of alkaline substance added in the solid state is sufficient to neutralize not more than 75% of the free carboxyl groups.  The polymer starting material should contain at least 40% of methacrylic acid but 15% of the methacrylic acid may be replaced by acrylic acid.  Copolymers of methacrylic acid and esters nitriles or amides of methacrylic acid and/or acrylic acid, styrene and vinylacetate may be used as starting materials.  The concentration of the alkaline solution which is preferably sodium hydroxide solution is at least 50% by weight.  Further additions of water not exceeding 40% by weight based on the polymer may take place either before the addition of alkali solution or simultaneously.  The reaction takes place at ambient temperatures.
Patent GB-170192-A (GB)
Title: Apparatus for measuring and delivering pre-determined quantities of liquids
IPC: B67D7/16
Filed: 1920-10-01
Abstract: 170,192. Hayes, A. Oct. 1, 1920. Fixed-chamber apparatus; with air control of level.-An apparatus is of the kind in which the level to which liquid rises in a closed measuring- vessel is controlled by the height of an air vent, and comprises a construction in which a number of air vents are connected through a single valve. A closed container i is connected at its bottom through a valve e with a feed-pipe a, outlet pipe r and drain-pipe d. Depending from the top of the container are air-vents at different levels, with adjustable ends n, connected by pipes k, l, m, to a valve p capable of putting the air-vents collectively or selectively into communication with an overflow pipe q. Liquid is lifted into the apparatus through a pipe f and bead g, thence into the pipe a or an overflow b. The apparatus when not in use is drained by turning the plug of the valve e through 90‹ clockwise and the plug of the valve p through 180‹.
Patent GB-408624-A (GB)
Title: Improvements in or relating to electrical timing devices
IPC: H03K17/288
Filed: 1932-10-08
Abstract: 408,624. Valve circuits. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ESPLEY, D. C., c/o General Electric Co., Wembley, Middlesex. Oct. 8, 1932, No. 28066. [Class 40 (v).] An electrical timing circuit for automatic traffic signals and the like is supplied with A.C. and comprises a thermionic triode, the anode circuit of which includes a relay A for effecting the desired control, and also a condenser C2 in one position of a relay D (not shown) which controls contacts d1, d2. With the relay D de-energized, the condenser C2 is charged from A.C. supply through the triode because contact d2 is closed and switch d1 connects the condenser C2 in the anode circuit of the valve. When the relay D is energized the condenser C2 is connected to the grid of the triode and contact d2 is opened. The charge on C2 leaks away over the resistance R2 and, after a predetermined time, the anode current rises sufficiently to operate the relay A which remains energized until the relay D is again operated. The device may be arranged to repeat the cycle indefinitely by controlling the contacts d1 from the relay A and contacts d2 from a relay in the circuit of the condenser C2. In a modification, the condenser C2 is connected in series with the resistance R2 across the resistance R1 and is paralleled by a resistance under the .control of a switch operated by the relay A. This arrangement functions continuously as an impulser, the impulses being supplied to external circuits by contacts on the relay A. A relay E (not shown) may be arranged to control a switch e1 in the circuit of the discharging resistance R2. Specification 402,750 is referred to.
Patent GB-617134-A (GB)
Title: Improvements in and relating to spinning frames provided with slubbing mechanism
IPC: D01H5/36
Filed: 1946-09-19
Abstract: 617,134. Roller-driving gear for producing slub yarn. COURTAULDS, Ltd., and POTTS, S. Sept. 19, 1946, Nos. 28100 and 30525. [Class 120(ii)] The rotation of the final pair of two or more pairs of drafting rollers in a textile spinning frame is interrupted intermittently to cause slubs at irregular intervals by means of mechanism including at least two wheels of different diameters, which are concentrically mounted on a single shaft and are driven out of synchronism. The drafting rollers may be driven through a shaft 1, Fig. 2, and a clutch 5A, 5B by a driving wheel 4. The clutch is disengaged from time to time as a result of the action of studs 10 which are adjustable on a composite wheel 9 and contact and rock a roller 11. The composite wheel 9 may consist of two gear wheels 19, 20, Fig. 3, driven at different speeds. Wheel 19 is formed as an annular ring with holes 23 to take studs 10. Wheel 20 has a plate 21 screwed to it which is also formed with holes 23 to take studs. In a modified construction of the composite wheel, Fig. 4, a wheel 24 has an annular recess 25 to take the bases of studs 10 and an annular channel 26 to take the inner portion 29 of an annular wheel 27 having holes to receive the studs 10. A plate 32 screwed to the wheel 24 has holes 33 to receive further studs 10, whose bases enter an annular recess 31 in the portion 29 of the wheel 27. Cams, such as 34, are adjustably located in the recesses 25, 31 to lift the studs 10 into operative position at irregular intervals. Slubs of irregular size may be formed by varying the effective area of the studs and by varying the speeds of rotation of the wheels 19, 20. According to the first Provisional Specification, interruptions in rotation of the drafting rollers may be made by two separately driven peripheral cams mounted side by side, or two separately driven commutators with irregularly spaced conducting bars rotated out of synchronism to effect interruption electrically. Specifications 415,099, 451,916, 474,984, 477,789 and 489,792 are referred to.
Patent GB-596704-A (GB)
Title: Production of coloured masses and articles from organic filament-forming materials
IPC: C08J3/22
Filed: 1945-06-27
Abstract: The process of Specification 569,170 is applied to polythene instead of to nylon.  In an example, a copper phthalocyanine pigment is dispersed in the low-molecular polyester-amide described in example (1) of the above Specification and the dispersion is milled with polythene at the melting temperature.
Patent GB-185985-A (GB)
Title: Improvements relating to imitation fires
IPC: G09F19/10
Filed: 1921-10-27
Abstract: 185,985. Berry, H. H. Oct. 27, 1921. Imitation fires.-The " fuel for imitation fires consists o f moulded glass of slablike form. The outer surface is rough and has pieces of coke or coal 7 more or less embedded; sand may also be applied to the outer surface, and colouring agents may be in the glass or applied to it. Where more than one slab is used, the adjoining edges overlap as shown to prevent direct passage of light. b is the usual electric lamp with flicker-producing device c, or a gas burner may be employed. In the case of a firebasket the fuel " may be of inverted deep bowl shape.
Patent GB-1518024-A (GB)
Title: Treatment of waste
IPC: B09B3/00
Filed: 1976-07-09
Abstract: 1518024 Treatment of waste SOC INTERNATIONALE DE PUBLICITE ET D'AGENCES COMMERCIALES 9 July 1976 [16 July 1975] 28571/76 Heading C1K Toxic wastes are treated by a process comprising the steps of treating a silicate e.g. granulated slag in an acid medium in order to obtain silicic acid of low molecular weight (not exceeding 50,000), mixing the silicic acid with the waste to be treated, in the presence of water and in a sufficiently acid medium to ensure that the waste will undergo at least partial solution, precipitation of a gel from the said aqueous mixture and then hardening into a solid aggregate. Optionally a cementation agent may be added to the gel in such a manner as to produce a sludge, the sludge being hardened to a non-toxic solid aggregate.
Patent GB-847224-A (GB)
Title: Improvements in or relating to electrical decision element circuits
Inventor: ROSE ALAN
IPC: H03K19/00
Filed: 1956-09-19
Abstract: 847,224. Circuits employing bi-stable magnetic elements. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 4, 1957 [Sept. 19, 1956], No. 28685/56. Class 40 (9). [Also in Groups XXXVIII and XL (c)] Two possible constructions, Figs. 3 and 4, using magnetic cores, of a logical circuit, Fig. 5, which evaluates the function are described. This function is defined as abc+cde and has the property that by suitably giving three of the variables a, b, c, d and e the values 0 and 1 it assumes all the logical operations that can be performed on two variables. For example (that is #PQ). In the drawing, a full arrow represents a winding of weight +2, a halfarrow a winding of weight +1 and a semi-circle arrow a winding of weight - 1. For a core to produce an output pulse it requires a resultant pulse of weight + 2 (this being necessary because of a bias winding, not shown).
Patent GB-1202329-A (GB)
Title: Valve assembly in which the degree of opening is adjustable by fluid pressure
Inventor: DAUME ROLF
IPC: F16K31/122
Filed: 1968-06-17
Abstract: 1,202,329. Valves. R. DAUME. 17 June, 1968 [16 June, 1967], No. 28726/68. Heading F2V. [Also in Division F1] The valve is adjusted in discrete amounts against a resilient means by a stack of fluid pressure actuators 1 to 8 which are graded in a series as to the amount of movement each can impart to the valve member 11. The actuators are controlled through three-way pilot valves 17 and may be operated according to a binary code. As shown, a normally open valve is arranged to be closed. The stack bears at one end on a housing 9 and at the other on a spring retainer 14. Each actuator comprises a base 19 screwed to a sleeve 21 on the valve stem 13 and with a connection 20 for the flexible pipe 16. The base is sealed to a sliding member 22 by a bellows 26, and the permitted relative movement is set by an adjustable stop nut 24 with peripheral teeth for locking by a pin 25. In a modification, a rolling diaphragm type seal is clamped to the base. In another embodiment, a normally closed valve is arranged to be opened, the stack being inverted.
Patent GB-358262-A (GB)
Title: Improvements in screw-down stop valves and the like
IPC: F16K1/42
Filed: 1930-09-25
Abstract: 358,262. Making valves. SELF, S. A., 6, Burford Gardens, Palmers Green, London. Sept. 25, 1930, No. 28732. [Classes 83 (ii) and 83 (iv).] Forging-dies.-A hand tool for inserting a white metal valve seat p comprises a screwed tubular member s, with tommy bar t, which is adapted to screw into the valve casing at v in place of the valve cap f. A ring of white metal placed in position in the undercut recess is pressed by the lower end w of the tool into the recess as shown at p.