baber/WOPTO huggingface dataset:
Patent GB-1136361-A (GB)
Title: Improvements in or relating to braking systems of articulated vehicles
IPC: B60T15/46
Filed: 1967-05-02
Abstract: 1,136,361. Braking systems for vehicles. SOC. ANON. ANDRE CITROEN. 2 May, 1967 [4 May, 1966], No. 20253/67. Heading F2F. A braking system for articulated vehicles comprises two slide valves operated by the brake pedal through a compensating bar and roller in accordance with the load on the tractor rear axle, one slide valve actuating the front brakes and the other slide valve actuating the rear brakes and a valve in the trailer braking system. In the figure an hydraulic system with reservoir 5 controls the tractor brakes 24, 27 and a vacuum system with reservoirs 58, 61 controls the trailer brakes 72. If the trailer is not coupled, the load on the tractor rear axle 36 will be light, and linkage 37-47 moves a roller 35 to the left (as shown). Depression of the brake pedal 34 then causes the first slide valve 18 to move downwards to connect lines 15 and 23. Pressure in reservoirs 9 and 11 is then communicated to the front brakes 24 and via line 23a to an auxiliary piston 26 on the rear brakes, producing a full application of the front brakes and a partial application of the rear brakes. If the rear axle 36 is loaded, e.g. if a trailer is connected, the linkage 37-47 moves the roller 35 to the right. Depression of the brake pedal 34 then moves a second slide valve 29 downwards to connect lines 16 and 52. Pressure in reservoirs 12 and 13 is then communicated via line 52 to the main piston 51 of the rear brakes and to a valve 55 in the trailer braking system, allowing vacuum from reservoir 58 to actuate the trailer brakes 72. Subsequently, the first slide valve 18 operates as before to actuate the tractor front brakes. Modifications.-The trailer braking system may be operated by compressed air instead of vacuum. The tractor braking system may also be pneumatic. The brakes may be drum or disc. The auxiliary piston 26 on the tractor rear brakes may be omitted.
Patent GB-272359-A (GB)
Title: Polyphase induction disc electric relay
IPC: H01H53/10
Filed: 1926-08-17
Abstract: 272,359. McDonald, J. C. Aug. 17, 1926. Induction relays, actuating.-The shaft 16 of a polyphase induction disc carries a cam plate 14 which engages 'the pivot 11 of a toggle 12, 10<a>, anchored at pivot 13 and joined to an arm S. When the shaft 16 turns, the arm 8 is moved so that the contact plate 3 carried thereby bridges contacts 1, 2.
Patent GB-898513-A (GB)
Title: Helicopters
IPC: B64C27/54
Filed: 1960-06-09
Abstract: 898,513. Helicopters. VERDUGO, J. M. June 9, 1960, No. 20282/60. Class 4. [Also in Group XXIV] A helicopter comprises a plurality of pairs of rotors, the rotors of each pair being driven in opposite directions, a first pair being rotative about an axis fixed with respect to the fuselage and a second pair being rotative about an axis tiltable with respect to the fuselage, and means for varying the inclination between the two axes. In the Figure, an upper pair of rotors generally indicated at 38, 42, comprises blades the roots of which are clamped between upper and lower coupling sections 58a and 58b, and 62a and 62b. The former are secured to a shaft 56, and the latter to a shaft 66 concentric with shaft 56, and spaced therefrom by bearings 74a, 74b, 74c. Shaft 66 is also spaced from a non-rotary shaft 82 by bearings 84, 148, shaft 82 being attached to a fixed part 98 of the fuselage. The rotary shafts 56, 66 are attached to bevel gears 120, 122 suitably supported from fixed structure by thrust and radial bearings. Each bevel gear is driven by its own engine. through a pinion. Shaft 82 also supports a sphere 96 on which a sleeve 170 is universally mounted. Upper and lower coupling members 172a, 172b on the sleeve clamp the roots of the blades of a rotor 30, and upper and lower coupling members 178a and 178b clamp the roots of a rotor 32, and are rotatably mounted on sleeve 170. The coupling member 178a and sleeve 170 are attached to bevel gears 190, 192, each driven by its own engine through a pinion. These engines are mounted on a plate 216 which is attached to sleeve 170 through a, conical roller bearing 202, so as to tilt but not rotate with the sleeve. Plate 216 is tiltable by four cables 230 (two shown) operable in opposed pairs by two pilot's control levers, respectively controlling tilting of the plate, engines, sleeve, and rotors about a lateral, and a fore-and-aft, axis. Shaft 56 may be hollow, and communicate with the engine compartment through ports 59 in the shafts, to provide a cooling air flow, which may be assisted by blades 59<SP>1</SP> in a cap 57 on shaft 56. The helicopter may have a further pair of coaxial rotors mounted aft of rotors 30, 32, being similarly tiltable, and driven by individual engines (see Fig. 4 not shown). Each pair of coaxial rotors may, however, be driven by a common engine. A preferred construction of bevel gears 120, 122, 190 and 192, is described (see Group XXIV). The fuselage has compartments, (see Figs. 1 and 2 not shown), from which horizontally extending surfaces may be protruded into the downwash of the rotors, to produce control torques, one surface being extendable forwardly, one rearwardly, and one to each side laterally. The latter two surfaces may provide lift in forward flight, and may run on rollers. The surfaces are controlled by cables and drums rotatable by the pilot through worm gear.
Patent GB-858815-A (GB)
Title: Improvements in conveyor systems
Inventor: JOHNSON REGINALD FRANK
IPC: B65G47/68
Filed: 1958-06-25
Abstract: 858,815. Endless-conveyers. ROSE BROS. (GAINSBOROUGH) Ltd. June 17, 1959 [June 25, 1958], No. 20287/58. Class 78 (1). In means for transferring a row of articles, e.g. lollipops 11, from an upper conveyer 21 to a lower pocketed conveyer 27 arranged transversely to it, an article supporting platform 32 arranged above the pockets 31 of the lower conveyer receives successive rows of articles from the upper conveyer and is moved, after each movement of the lower conveyer through a number of pitches equal to the number of articles in a row, out of article supporting position to allow the row of articles to pass into separate pockets of the conveyer. The sticks 12 of the lollipops are gripped in slots in trays 13 which are propelled along rails 14 by pushers 18 depending from an endless chain conveyer 17. At a certain point all the sticks 11 are released from the first tray 13 of the series and the lollipops drop on to a band conveyer 21 which travels at the same speed as the conveyer 17. Spacer bars 23 carried by a pair of parallel chains 22 extend across the conveyer 21. A curved shoot 24 at the delivery end of the conveyer 21 is partitioned to form a number of compartments 26, Fig. 2, corresponding to the number of lollopops in each row. The lower end of the shoot 28 is horizontal and the bottom is cut away to allow the lollopops to drop into the pockets 31 of the conveyer 27 when the platform 32 is withdrawn. The platform 32 is secured to a pivoted link 33 forming part of a parallelmotion linkage 34, 36 which is reciprocated by a cam 43.
Patent GB-933494-A (GB)
Title: Photographic silver halide emulsions and photographic elements containing them
IPC: C08F8/00
Filed: 1961-06-05
Abstract: The Specification refers to b -hydroxyethyl and b -hydroxypropyl ethers and mixed ethers of polyvinyl alcohol.  In the examples, b -hydroxyethyl vinyl ether and vinyl acetate are copolymerized in t-butyl alcohol using azobisisobutyronitrile catalyst.  The copolymer produced is then hydrolysed by refluxing with sodium methoxide in methanol.  In Example III, b -hydroxyethyl vinyl ether is polymerized in t-butyl alcohol with azobis-isobutyronitrile catalyst. Specifications 592,676, 600,058, 658,588, 658,826, 718,422, 786,176, 853,588, French Specification 708,236 and U.S.A. Specification 1,925 508 are referred to.
Patent GB-639455-A (GB)
Title: Method and apparatus for preparing attachment loops for absorbent bandages
IPC: A61F13/15
Filed: 1948-07-30
Abstract: 639,455. Cutting fabric. BOULY, H. G. (International Cellucotton Products Co.). July 30, 1948, No. 20344. [Class 31 (i)] [Also in Group VI] In a method of making fabric loops a tubular length of textile material is partially severed at spaced points leaving easily broken bonds between adjacent pieces. The sections are subsequently passed over a mandrel, separated and rolled up on themselves to form rings. The roll of tubular fabric 3, Fig. 1, is fed to a cutting device comprising a bladed rotor 5 bearing against a fixed anvil 6, in the form of a block having two longitudinal grooves in it, so that the material is severed except for two narrow bonds on each side. The material may now be rewound on a second roll 34 or it may pass direct to the finishing mechanism shown in Fig. 2. Here co-operating wheels 37, 38 with rubber teeth 40 feed the fabric on to a mandrel 35, having a tapered end and on which the friction causes the sections to separate, and roll the pieces on themselves to form the finished rings 1. Movement through the machine may be assisted by driven friction bands 43, 44, for feeding the fabric on to the mandrel, and bands 41, 42, for passing the finished loops along the mandrel. The cutting head is shown in Fig. 3 and comprises two pillars 12 carrying bearings for the rotary cutter spindle 10 and providing guides for a bed 16 carrying the cutting anvil 6. The bed may be adjusted for height by a central threaded support 17 and may be tilted about a longitudinal axis by adjusting bolts 25 which move it about a hemispherical support member 22.
Patent GB-188054-A (GB)
Title: Improvements in or relating to the vibratory diaphragms of sound-producing apparatus
IPC: H04R7/08
Filed: 1921-07-29
Abstract: 188,054. Marr, A. and Chalmers, A. M. July 29, 1921. Telephones. - Relates to sound-reproducing apparatus, such as telephone receivers and gramophone sound-boxes, of the kind in which, in conjunction with the ordinary or primary diaphragm there is provided a secondary diaphragm of smaller thickness adapted to receive its impulse from the primary diaphragm through an intermediate cushion of air. According to the invention, the thickness of the secondary diaphragm is not more than 50 per cent of the thickness of the primary diaphragm. As shown in Fig. 1, a secondary diaphragm 13 of aluminium, mica. or celluloid, is arranged above the usual iron diaphragm 11 of a telephone receiver after the iron diaphragm has been attracted by the electromagnet 12 whereby an air space 14 is left between the two diaphragms. The air space may alternatively be obtained by spacing the two diaphragms apart at their edges by means of a ring; and a packing ring may be interposed between the secondary diaphragm and the annular rib 15 of the cap 16. A small disc of aluminium may be attached to the centre of the inner side of the secondary diaphragm as a protection against accidental external pressure, when the disc will bear on the primary diaphragm which will resist the accidental pressure. An arrangement with a spacing ring 17 and packing rings 22, 23 is shown in Fig. 2 applied to a gramophone sound box in which tha secondary diaphragm 13 is recessed in the centre 26 to clear the connection 27 of the stylus arm 28 to the primary diaphragm 11. The edge of the secondary diaphragm 13 may be grooved to fit the spacing ring as shown in Fig. 3. The application of the invention to conical diaphragms carried by vibratory reeds is also mentioned.
Patent GB-1337239-A (GB)
Title: Folding cameras
IPC: G03B19/12
Filed: 1972-05-02
Abstract: 1337239 Folding reflex cameras POLAROID CORP 2 May 1972 [10 May 1971] 20401/72 Heading G2A A folding reflex camera having a collapsible housing comprising pivoted sections 12, 14, 16, 18, 20 has a flexible opaque envelope 22 within the housing which is secured to the various sections, is automatically erected and collapsed therewith, and has openings at various points corresponding to the light path through the camera. The camera is of the type disclosed in Specification 1292240 with a mirror member 64 attached to housing section 18 at one end by a pivot, and having a Fresnel mirror 66 on its upper face, lying in a light-tight manner over the exposure opening 36 in the viewing and focusing position of Fig.1. In this position light passing through the objective lens 58 is reflected by a mirror 62 on to the Fresnel surface, from there back to mirror 62 and thence through an opening 78 in housing section 14 into a viewing device 72. Here the light is focused by an ellipsoidal mirror 74 to form an aerial image of the Fresnel surface 66 as represented by arrow 80. This is viewed by an observer 82 through a magnifying eye lens 76. For making an exposure the mirror member 64 is pivoted clockwise so that it lies adjacent mirror 62, so that light coming through lens 58 is reflected from a mirror surface 68 on its underside to the forwardmost of the assembly of film units 30. The envelope 22, whose function is to exclude ambient light, forms a six-sided chamber 24, and is made of an elastomer material, preferably of ethylene-propylene-diene rubber. It is secured to the housing sections in light-tight manner by means of relatively rigid rings or frames 102, 104, 106. Ring 102 has an opening 102 registering with an opening 96 in sidewall 84 in alignment with the lens and shutter opening 54. A second opening 98, in sidewall 90, is aligned with the exposure opening 36. Side wall 88 of envelope 22 is secured to housing section 16 by frame 106, which has an opening 124 therein to allow bosses 63 formed on section 16 to extend therethrough for the purpose of mounting the mirror 62. Side wall 86, which is not secured to housing section 14, has a small opening 100 for allowing the light to pass through to mirror 74. The opening is tilted, as shown, to improve the image quality, and also acts, because of its small size, as an entrance pupil. The envelope 22 has permanent crease lines 126, which facilitate its folding in a predetermined and repeatable manner when the camera is collapsed.
Patent GB-1142135-A (GB)
Title: Method of developing photosensitive emulsions and developer compositions for use therein
IPC: G03C5/30
Filed: 1966-05-09
Abstract: 1,142,135. Developers. INTERNATIONAL POLAROID CORP. May 9, 1966 [May 26, 1965], No. 20510/66. Heading G2C. Developer solutions, silver halide emulsions or other layers of a photographic silver halide material or image receiving layers for the silver salt diffusion transfer process contain as a silver halide developing agent at least one ascorbic acid or isoascorbic acid acetal or ketal of the formula: wherein one of X and Y is alkyl of 1-5C and the other is H or alkyl of 1-5C. These developers are useful in the dye developer transfer process. In the silver salt diffusion transfer the developer may be present in a viscous processing solution containing a silver precipitant which subsequently sets to the image receiving layer (see Specification 714, 412). The ascorbic acid may be admixed with other developers e.g. 2.6-dimethoxy 4-aminophenol/or 1-hydroxy-2-methyl-3, 5-dimethoxy phenol.
Patent GB-221072-A (GB)
Title: Improvements in or relating to appliances for use in playing board games
IPC: A63F3/02
Filed: 1923-08-13
Abstract: 221,072. Power, G. O. Aug. 13, 1923. Board games.-Appliances for playing a game comprise a board E marked with concentric circles F and radial lines G, and provided with holes H to receive pegs at the points where the radial lines cut the circles. Tangential lines K may be provided and the circles be replaced by polygons. The board and pegs may be made of wood, metal, ebonite, vulcanite or other material. Reference has been directed by the Comptroller to Specifications 18483/89 and 5015/03.
Patent GB-386575-A (GB)
Title: Manufacture of stable salts of dialkylaminoarylphosphinous acids
IPC: C07F9/46
Filed: 1932-07-23
Abstract: Salts of dialkylaminoarylphosphinous acids are rendered stable by heating them for some time, preferably in vacuo and at a temperature of 70-120 DEG  C.  The starting materials are obtainable by the process of Specification 214,836, [Class 2 (iii), Dyes &c.], and the following are specified: the sodium salts of 4 - dimethyl - and diethylamino - 2 -methyl - benzene-1-phosphinous acids, the sodium salts of 4-dimethylamino-2-methoxy- and ethoxy-benzene-1-phosphinous acids, the potassium salt of 4 - dimethylamino - 2 - methylbenzene -1-phosphinous acid, the sodium salt of 4-dimethylaminobenzene-1-phosphinous acid, the sodium salts of 4-dimethylamino-2-dimethyland diethylaminobenzene-1-phosphinous acid and the sodium salt of 4-dimethylamino-2-ethylbenzene-1-phosphinous acid.  Examples are given of the treatment of the crystallized sodium salts of (1) 4-dimethylamino-2-methylbenzene-1-phosphinous acid by heating on the water bath for 3 days or at 100 DEG  C. under 20 mm. pressure for 4 hours, and (2) 4-dimethylaminobenzene-1-phosphinous acid and 4-diethylamino-2-methylbenzene-1-phosphinous acid by heating for 24 hours under 20 mm. pressure at 100 DEG  C. and 80 DEG  C. respectively.
Patent GB-1337643-A (GB)
Title: Warheads
IPC: F42B12/58
Filed: 1971-04-19
Abstract: 1337643 Multiple warheads DYNAMIT NOBEL AG 19 April 1971 [3 Feb l970] 20848/71 Heading F3A A device for dispersal from the warhead of a bomb, rocket or projectile comprises a plurality of barrels 2, Fig. 1, containing shells 7, a parachute 1 or other braking arrangements such as flaps, and a weight 5 for maintaining the device substantially vertical during its descent. The weight 5 is in the form of a tube having a percussion or electrical fuse at its lower end 10. The fuse serves to ignite a detonating charge 9 for a propellant 8 when the end 10 strikes the ground. If the fuse is mechanical, it may be released pneumatically at the time of firing. The barrels may be fixed or pivoted to a central member 4, and. in the latter case. can be retained in a folded condition inside the warhead 13, Fig. 2. The tubes 5 of adjacent devices fit inside one another. The devices are ejected from the rear of the warhead at predetermined time intervals when the tail portion 14 is separated therefrom by timing means. The devices may be connected together by a line which enables them to be accurately spaced apart. The line is arranged to break at a predetermined tension. In other embodiments, the stabilizing weights are attached directly to the barrels 2 or to the central member 4 by a flexible connecting link. In the latter case the weights are provided with a recess for housing the braking means of an adjacent device. The shells may be antipersonnel, smoke indicator, anti-tank shells or mines.
Patent GB-634596-A (GB)
Title: Process for the preparation of agar-agar
IPC: C08B37/00
Filed: 1947-07-31
Abstract: In a process for preparing agar-agar from seaweed the elementary fibres are freed from one another by thoroughly disintegrating wet seaweed until the connective material is loosened, and the agar-agar subsequently extracted from the disintegrated material.  Prior to disintegration the seaweed is preferably soaked in water at a temperature not above 35 DEG C. for approximately 12 hours.  Before the extraction the crushed mass may be purified by treating it with a large quantity of a substantially aqueous liquid, which may be a solution of alcohol in water but is preferably cold water, amounting to 12 times the weight of the disintegrated material, which is preferably washed until the liquid becomes clear.  The treatment with aqueous liquid may take place in a vessel, preferably funnel-shaped, which the liquid enters from below and leaves at the top.  The seaweed is then preferably extracted with water at 80-100 DEG C., the extraction preferably being carried out on the counter-current principle, and the liquid agar-agar extract filtered and subsequently congealed by cooling.
Patent GB-239502-A (GB)
Title: An improved process and device for the fractional distillation and condensation of complex mixtures
IPC: C10C1/04
Filed: 1925-08-20
Abstract: 239,502. Soc. Anon. d'OugrÚe-Marihaye. Sept. 8, 1924, [Convention date]. Rectifiers.-In a columnar apparatus for the fractional condensation of vapours such as those obtained in distilling wash oils used for extracting benzol &c. from coke oven gases or those evolved from liquefied coke oven or other gas, connections for the reflux of the condensate are made so as to divide the column into sections comprising three plates each. The condensates collecting on the upper plates A<3>, B<3> of the sections pass by pipes E<a>, E<b> on to the lower plates A<1>, B<1>, those collecting on the lower plates pass by pipes G<1>, G<2> on to the upper plates of the sections next below, and those collecting on the middle plates A<2>, B<2> are drawn off by pipes o, n. The vapours pass, upwards through inlets D covered by bubbling hoods C. Each plate is fitted with a cooling-coil K. Cooling medium may be passed through the coils in series from the top downwards or in parallel.
Patent GB-1130413-A (GB)
Title: Telephone exchange
IPC: H04Q3/54
Filed: 1967-05-05
Abstract: 1,130,413. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 5 May, 1967 [11 May, 1966], No. 20927/67. Heading H4K. In an exchange employing a centrally controlled switching network a sense wire additional to the speech and control wires is connected through the switching network as a call is set up, and the sense wire is pulsed whenever information relating to the connection involved in that call is required. As shown, each line circuit TS has an individual link which connects the sense wire to a common information channel 1K through an equipment number translator PO, a directory number translator RO and a class of service translator KO, while the junctors VS and the switching links of the switching matrices KS1 and KS2 have links which connect the sense wire to the information channel through a junctor translator VSO and network translators NO1 and NO2. The translating elements are diodes. An evaluation device AW in the central control receives from the information channel IK, after a pulse has been sent over the relevant wire A, B, C or E by a sensing pulse distributer Id, the equipment number or the directory number of the line or lines, the class of service, the type (e.g. local or outgoing) of junctor and the identities of the various portions, e.g. for an outgoing call wire A is pulsed and the scanner AzS passes this pulse through the relevant subscriber's line circuit to its link connected to the sense wire. The central control ZSt receives via the appropriate translator the equipment number and the class of service of the subscriber and from these items controls the establishment of the connection. If a wanted subscriber is engaged his data wire is already connected to a junctor and this data wire can be pulsed to identify the type of call in which he is involved (e.g. local or distant, or in the case of a PABX subscriber internal or external) in order to determine whether to cut in for a trunk call. If frequent cut-ins are likely to occur, the data wire is sensed to determine the number of calls which have been cut-in and further cut-in may be prevented. An equipment number tree PP and a directory number tree RP are provided. If, for example, the scanner AzS supplies the calling line in equipment number as an address in some way (instead of marking the line circuit) the equipment number tree is set to evaluate that number so that a pulse on wire B from the central control passes to that link to the sense wire, which is associated with the calling subscriber's line circuit. In a modification a sectionalized system time sharing a common pulse distributer and integrated translator are employed.