baber/WOPTO huggingface dataset:
Patent GB-142734-A (GB)
Title: Improvements in ceiling roses and junction roses for electric light and power installations
IPC: H01R9/24
Filed: 1919-09-25
Abstract: 142,734. Tannahill, J. B. Sept. 25, 1919. Ceiling-roses; binding-posts and terminals, - The fitting comprises a block of insulating material 1 having at its ends roofed and bottomed recesses 2 in each of which is a metal block 4 with a slot 5 merging into an aperture into which an uncut conductor may be inserted laterally. When in use as a junction fitting, connexion is made to these metal blocks by a second hole 7 therein. The binding screws serve to secure the blocks 4 in position. Connectors 13 may be fitted into tunnels in the insulating block when it is used with a switch, inclined passages 11 being provided through which flexibles may be threaded. A hole 10 is furnished for the fixing-screw.
Patent GB-503077-A (GB)
Title: Improvements in colour photography
IPC: G03C7/30
Filed: 1937-08-30
Abstract: 503,077. Colour photography I. G. FARBENINDUSTRIE AKT.-GES. Aug. 30, 1937, No. 23689. Convention date, Aug. 29, 1936: [Class 98 (ii)] In a process for producing photographic multi-colour pictures, there is used for exposure a material which carries silver halide emulsions sensitive to different spectral regions all or a part of which emulsions contain dyestuff formers fast to diffusion which can be converted into dyestuffs by colour development, the exposed material is subjected to colour development, and the originals thus produced are further copied on dyestuff bleaching-out layers. Dyestuff formers for use in the exposure material are described in Specifications 458,400, 465,823, and 479,838. Suitable dyestuff bleaching-out layers are produced by the processes described in Specifications 341,371, 343,212, 348,102, 348,232, 352,196, 388,670, and 426,346.
Patent GB-693924-A (GB)
Title: Improvements relating to electric lamp holders
Inventor: JACKSON ERIC DAVID
IPC: H01R33/46
Filed: 1950-09-29
Abstract: 693,924. Lamp caps and holders. TURNOCK, Ltd., G., and JACKSON, E. D. Dec. 14, 1951 [Sept. 29, 1950], No. 23844/50. Class 38 (i). A lamp holder comprises a body 9 and spring plungers 1 the square bases 2 of which move between inwardly-pressed parts 13 of resilient U-shaped members 3, the latter being mounted on a disc 4 housed in a recess 8 of the body, and connected to terminals 5 by means of eyelets 23 integral with the terminals. Each U-shaped member, spring, and plunger assembly is isolated in a compartment 25 in the body. When the holder is assembled the base 2 of the plunger 1 abuts the wall of the compartment 25, the disc 4 being screwed or riveted in the recess 8. Fig. 3 (not shown), illustrates a lamp holder adapter having pins to fit into a socket, the U-shaped members being provided with lugs riveted to corresponding plug pins to allow for the different spacing of the plungers and the pins. Alternatively the disc may be screw-threaded to engage a cap to form a pendant lamp holder or a base for a batten holder. The Provisional Specification refers to the edges of the U-shaped parts being inwardly flanged to form a split box section in which the plunger slides.
Patent GB-1508999-A (GB)
Title: Gears
IPC: F16H1/36
Filed: 1974-05-29
Abstract: 1508999 Toothed gearing VICKERS Ltd 22 May 1975 [29 May 1974] 23882/74 Heading F2Q A cantilevered support for a gear-wheel comprises a flexible pin 2 secured to a carrier 1 with the other end of pin 2 secured to a tubular sleeve 3 having an inner annular space 4 around the pin and with a planet gear-wheel 5 mounted for free rotation upon the sleeve 3, such that when the pin flexes under operational loads in an epicyclic gearing arrangement, the axis of gear-wheel 5 remains parallel with its initial axis when unloaded, wherein the pin 2 is shaped with opposed flat faces 10 parallel with a radial plane 11 over the region 8-9 of its length, thereby providing pin 2 with a greater resistance to bending in the radial plane 11 than in a tangential plane 13. In an alternative embodiment, Figs. 3, 4 (not shown), the pin may have a concentric bore throughout its length. The pin may be secured to the carrier and to the sleeve by means of electron beam welding. Reference has been directed by the Comptroller to Specification 1,456,085.
Patent GB-316894-A (GB)
Title: Improvements in or relating to bumper arrangements for motor vehicles and the like
IPC: B62D31/02
Filed: 1928-10-30
Abstract: 316,894. Twin Coach Co., (Assignees of Fageol, F. R.). April 19, 1928, [Convention date]. Divided on 309,984. Collision-,guards; luggage and like holders.-In a shock-absorbing arrangement for a motor or like vehicle one or more complete spare wheels are adapted to co-operate with spring bumper members to form a collision-guard. In the construction shown two spare wheels 3<a>, 3b are disposed below the level of the floor of a combined rail and road vehicle, and at their rear ends abut against a transverse frame member 3g, while at their forward ends they project beyond the vehicle frame and engage the inner ends 15<c> of two spaced bumper bars 15a pivoted to the vehicle at their outer ends 15b. The upper and lower bumper bars 15<a> abut respectively against the wheels 3<a>, 3b and are connected by vertical straps 15d apertured for the passage of bolts 15<e>, which at their inner ends are attached to the vehicle frame and at their outer ends are provided with wing-nuts 15f whereby the bumper bars may be utilized to retain the spare wheels in position.
Patent GB-957517-A (GB)
Title: Improvements in or relating to eddy-current brakes for electric induction meters
Inventor: STEINGROEVER ERICH
IPC: G01R11/10
Filed: 1960-07-08
Abstract: 957,517. Eddy-current brakes. MAGNETFABRIK GEWERKSCHAFT WINDHORST. July 8, 1960, No. 23914/60. Heading H2A. An eddy-current brake for use in an electric induction meter comprises a permanent magnet 10 adjustably rotatably mounted by a screw 13 on one limb of a generally U-shaped soft iron holder 9, the magnet presenting two pole faces of unlike polarity N, S towards the other limb and the latter having an opening through which the screw is accessible. The magnet, which may be of a ceramic composition or an ironnickel-aluminium-cobalt alloy, is arranged in a die-cast metal mounting 11 having teeth which mesh with a worm 15 mounted in a support 16 and whose ends are slotted at 17 to permit rotation of the magnet. Temperature compensation may be provided by a plate or wire, not shown, of a negative magnetic temperature coefficient alloy arranged as a shunt in the magnet groove that defines the poles. Reference has been directed by the Comptroller to Specification 769,262.
Patent GB-922725-A (GB)
Title: Pyrazine derivatives
IPC: C07D241/22
Filed: 1961-07-03
Abstract: The invention comprises 3-alkoxy-2-sulphapyrazines of the formula <FORM:0922725/IV(a)/1> wherein R1 and/or R2 are H or alkyl (at least one being alkyl), R3 = H or Ac, R4 = -SO2-C6H4-NHAc, -SO2-C6H4-NH2 or -SO2-C6H4-NO2, Alk represents an alkyl radical of 1-4 carbon atoms and Ac represents an aliphatic monocarboxylic acyl radical of 1-4 carbon atoms; and the preparation of these compounds by treating the corresponding aminopyrazine with a p-acylaminobenzene-sulphonyl halide in the presence of a tertiary amine and if desired hydrolysing the resulting p-acylamino-derivative with alkali or acid; or by treating the aminopyrazine with a p-nitrobenzenesulphonyl halide and reducing the resulting nitrobenzenesulphonamido-pyrazine with hydrogen in the presence of a hydrogenation catalyst such as palladium/charcoal.  Startinb materials.  5-Methyl- 3-chloro-2-aminopyrazine is made by treating 5-methyl-3-hydroxy-2-aminopyrazine with POCl3. 6-Methyl-3-chloro-2-aminopyrazine is made by converting 6-methyl-3-hydroxy- 2-carbamoylpyrazine into 6-methyl-3-hydroxy -2-aminopyrazine by Hoffmann reaction and chlorinating with POCl3. The 5-methyl-3-chloro-2-aminopyrazine may be converted into the 6-methyl-3-chloro-2-aminopyrazine and vice versa by treating successively with nitrous acid to give a 2-hydroxy-3-chloro-(5 or 6)-methyl-pyrazine, ammonia to give 2-hydroxy-3-amino-(5 or 6) methyl-pyrazine, and finally with POCl3.ALSO:Pharmaceutical preparations for treatment of bacterial infections comprise compounds of the formula <FORM:0922725/VI/1> wherein R1 and/or R2 are H or alkyl (at least one being alkyl), R3 = H or Ac, R4 = -SO2-C6H4-NHAc, -SO2-C6H4-NH2 or -SO2 -C6H4-NO2, Alk represents an alkyl radical of 1-4 carbon atoms and Ac represents an aliphatic monocarboxylic acyl radical of 1-4 carbon atoms, optionally admixed with other sulphonamides or antibiotics, and a carrier.  The preparations may take the form of powders, tablets, pills or syrups and may be mixed with animal foods.
Patent GB-533790-A (GB)
Title: Improvements in or relating to automotive vehicles
IPC: B60B11/00
Filed: 1939-08-19
Abstract: 533,790. Differential gearing; free-wheel clutches. DIFFERENTIAL WHEEL CORPORATION. Aug. 19, 1939, No. 23974. Convention date, Aug. 22, 1938. [Class 80 (ii)] [Also in Groups XXXI and XXXIV] Dual wheels 29, 39 are driven from an axle shaft 1 through means permitting free-wheeling of at least one wheel relatively to the shaft and the other wheel. In the construction shown, both wheels are driven through separate one-way roller clutches 53 so connected to the brake and gear controls that either wheel can over-run the other in both forward and reverse driving, and both wheels are braked when the brake is applied. The axle shaft 1 rotates in a stationary axle housing 4 and is fixed by a disc 10 to a sleeve 7 mounted on bearings 16, 23 on the housing. The wheels 29, 30 are journalled on sleeves 31, 35, 41, 45 and are connected to the driving sleeve 7 by the rollers 53. These rollers engage outer sleeves 62 fixed to the wheels, and inner sleeves 51 which are fixed to the sleeve 7 and have flat faces 52. Axial pins 54 on the rollers work in slots 55 in roller cages which comprise rings 56, 57 connected together by rods 61 and are capable of slight rotary movement relatively to the sleeve 7, this movement being limited by arms 67 engaging pins 68 on the cages. The arms 67 are fixed on shafts 66 journalled in the sleeve 7 and having other arms 71 carrying rollers 72 engaged by a non- rotary conical cam 75 sliding on the axle housing 4. The cam is connected by pins 87 and arms 92 to the brake pedal 137, Fig. 9, and the reverse gear selector rod 117, so that when either of these is operated the cam is moved to the left against its spring 78 and rocks the arms 67 counter-clockwise from the normal position shown in Fig. 4. In this position, which is that for forward driving, the driving sleeve 7 rotates counter - clockwise and drives both wheels through the rollers 53, either wheel being able to over-run the sleeve. When the brakes are applied by the pedal 137, the arms 67 are rocked slightly counter - clockwise from the position shown in Fig. 4, and a brake drum 121, which is fixed to the sleeve 7, is retarded by its brake shoes 126 so that the sleeve lags behind the road wheels and the latter are locked to the sleeve by the roller due to a slight rotation of the roller cages. When the gear lever is moved to the reverse position, the arms 67 are similarly moved counter-clockwise from the position shown in Fig. 4, and the wheels are positively driven in the reverse direction but are free to over-run the driving sleeve.
Patent GB-647463-A (GB)
Title: Improvements in or relating to noise reducing arrangements for discharge tube amplifiers
IPC: H03F1/28
Filed: 1946-08-13
Abstract: 647,463. Valve amplifying circuits. PHILIPS LAMPS, Ltd. Aug. 13, 1946, No. 24007. Convention date, Nov. 13, 1942. Addition to 645,936. [Class 40 (v)] A tuned amplifier circuit comprises a pair of stages, the first being uncontrolled and providing negative feed-back to damp the input circuit as in the parent Specification, and the second being employed for gain control. The interstage coupling is by resistance and capacity, while the feed-back path in the first stage comprises a cathode inductance and the grid-cathode capacity (Fig. 1, not shown). In an arrangement employing a triode-heptode valve (Fig. 2), negative feed-back is applied to the input circuit 1 by the inductance 16 in the anode circuit of the triode portion 11. The heptode portion 12 is connected as a triode and is coupled to the first stage by resistance 3 and capacity 6. A fixed bias potential is applied to the valve 11 via a resistance 17, the grid potential of the heptode portion 12 being varied for gain control. Further negative feed-back may be applied to the valve 11 without affecting the input circuit damping, by means of the mutually-coupled inductances 13, 14, the inductance 14 in the anode circuit being shunted by a phase-correcting resistance 15. In a modified arrangement (Fig. 3, not shown), the valves are biassed by a resistance and byepass condenser in the common cathode lead, an additional fixed current being applied to the resistance to minimize variation of bias in the first stage as the gain of the second is varied. In addition the grid-cathode capacity is neutralized by connection of the input circuit 1 to a tap on the coil 13, the free end being grounded through a neutralizing condenser.
Patent GB-424215-A (GB)
Title: Improvements in and relating to busbars for electrical switchboards
IPC: H02G5/00
Filed: 1933-08-30
Abstract: 424,215. Switchboards. SHAW, W. G. W., 15, Park Lane, Liverpool. Aug. 30, 1933, No. 24020. [Class 38 (v)] [See also Group XXXVI] The busbars of a switchboard are constituted by tubes of the same external diameter, but with a thickness of wall which is suited to the current they have to carry. The connections to the cables are effected by means of connectors having two-part sockets of a bore corresponding with the standard external diameter of the busbars and of a width appropriate to the.rating of the cable which is attached to a special terminal connection on the connector. The busbars A are supported from bars B of flat iron, angle, or channel section, by means of split porcelain sockets C with mica bushings, if desired, the sockets being held by bars B<1> and studs D which are tapped to receive screws d<1>. Rubber insertions E may also be provided. The bars B are attached to the inside of the back of a sheet steel switchboard casing provided with sheet steel doors. The cables may pass out into trunking of the character described in Specification 424,842, [Group XXXVI].
Patent GB-615830-A (GB)
Title: Improvements in or relating to cartridge feed mechanism
IPC: F41A9/11
Filed: 1946-08-13
Abstract: 615,830. Cartridge feed mechanism. AKTIEBOLAGET BOFORS. Aug. 13, 1946, No. 24030. Convention date, Aug. 20, 1945. [Classes 92 (i) and 92 (ii)] A combined automatic and hand-operated cartridge feed mechanism has a quadrantshaped cartridge table for moving a cartridge from the introducing position x on the gun trunnion axis to a charging-bridge at a gunfeeding position y parallel to the gun's axis, the introducing position being thus unaffected by movement of the gun in elevation. In the form shown, one arm 17 of a three-armed lever pivoted at 9, carries a roller 18 which engages in channel 20 on the gun barrel. A second arm 16 actuates an arcuate feed-plate 15. On run-out of the gun, the roller engaging in the channel 20 moves arm 17 in direction 42 so that feed-plate 15 moves cartridges, engaged each by a spring-actuated pawl 22, towards the charging bridge 3. On recoil, the feedplate is moved away from the bridge the pawls 22 being swung aside. A lever 13 linked to feed-plate 15 moves a feed bar 11 so that a cartridge-carrier 10 moves a cartridge from the table to the charging-bridge 3. When hand feeding is used for initial charging of the table, the feed is controlled by a crankhandle 35 and the automatic feed is locked in position. In hand loading, a similar threearmed lever arrangement pivoted at 14 moves an arcuate feed-plate 27 which feeds the cartridges in the same way as the feed-plate 15. The third arms 36, 39 of each three-armed lever are connected to a further lever system which controls a pressure bar 40 regulating the feed of cartridges to the table from a larger cartridge magazine.
Patent GB-1249099-A (GB)
Title: Device for positionally correct delivery of photo-sensitive sheets to a sheet carrier
Inventor: KRUPPER HANS-HEINER
IPC: G03B17/34
Filed: 1970-05-19
Abstract: 1,249,099. Feeding sheets. KOMBINAT PENTACON DRESDEN KAMERAUND KINOWERKE VEB. 19 May, 1970, No. 24161/70. Heading B8R. A device for feeding, in correct position, photosensitive sheets to a sheet carrier 2 in a photographic copying apparatus includes a sheet adjusting plate 4 below the carrier capable of being raised in relation to the carrier, laterally resilient sheet adjusting stops 8 being movable by springs 9 towards two adjacent side edges of the adjusting plate 4 but being secured against the action of the springs 9 by means, e.g. cables secured to a lever 13, when the plate is lowered, whereas when the plate is raised the stops come to rest against the side edges of the sheet carrier as a result of the springs 9. The sheet carrier 2 may take a sheet of film, by suction via apertures 3, from position I, Fig. 3 (not shown), and drop it on to the adjusting plate 4 which is tilted as a result of being mounted about its diagonal D-D on a leaf spring 5. The sheet is urged by springs 15 against the stops 8 which are mounted on arms pivoted to the bottom of the plate, Fig. 2 (not shown), and urged away from the side edges of the plate and against the springs 9 by the cables 10 connected to the lever 13 pivoted on a fixed arm 21. Upon clockwise rotation of a control shaft 26, an eccentrically mounted cam 23 urges lever 19 upwardly causing the plate 4 to be raised via supporting spring 18, until lugs 16 on the plate engage spacers 17 on the carrier 2. At the same time a cam 25 on the shaft 26 pivots lever 13 anticlockwise so as to slacken the cables 10 thus allowing the springs 9 to urge the sheet adjusting stops 8 towards the side edges of the plate 4 thereby registering the sheet. The sheet film is then exposed on the carrier in position III, Fig. 3 (not shown).
Patent GB-1432416-A (GB)
Title: Vehicle chassis
IPC: B62D21/15
Filed: 1973-05-22
Abstract: 1432416 Vehicle chassis NISSAN MOTOR CO Ltd 22 May 1973 [23 May 1972] 24254/73 Heading B7B A vehicle chassis is provided with at least one pair of longitudinally extending deformable members 16, 18 and at least one transversely extending element 20, 22 connected between the deformable members, the transverse member having two longitudinally spaced connecting points 20a fixed to members 16, 18 so that the members 16, 18 may deform at the space between the connecting points on vehicle collision. Each end section of each transverse member may be profiled as in Fig. 7b, or may have a V-cross-section (Fig. 15b, not shown) between the connecting points. In an alternative arrangement (Figs. 7c, 11, 12, not shown) the end sections are bifurcated.
Patent GB-615855-A (GB)
Title: Improvements in or relating to drying apparatus
IPC: F26B15/14
Filed: 1946-08-15
Abstract: 615,855. Drying apparatus. LIENHARD, E. Aug. 15, 1946, No. 24283. [Class 34(ii)] Perforated trays 7, on a rack 6, carrying tea or like material, is subjected to a stream of heated air from fan 12 and main heater 15, which passes from the drier to the wetter trays, and finally through pre-heaters 13, 14 to fan 12 for re-circulation. On leaving heater 15 a required portion of the air is directed by a pivoted door 16, to the driest tray rack at 57 before re-mixing with the main flow. Inlet door 10, and outlet 11 have means operating rotatable shutters 56 and 30 respectively, preventing the tea blowing out when the doors are opened. The quantities of fresh air admitted at 27 and saturated air exhausted at 29 are controlled by shutters, not shown.
Patent GB-388756-A (GB)
Title: Improvements in or relating to modulation systems suitable for use in wireless signalling and like transmission systems
IPC: H03C1/24
Filed: 1931-08-29
Abstract: 388,756. Valve modulating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, and ROUND, H. J., Westfield, Muswell Hill, both in London. Aug. 29, 1931, No. 24360. [Class 40 (v).] A modulation system comprises a pentode valve, with radio frequency voltages applied to its inner grid 2, signal or modulating voltages applied to its middle grid 6, and a constant voltage applied to its outer grid 8. The anode circuit is preferably coupled to an amplifying valve.
Patent GB-615872-A (GB)
Title: Improvements in or relating to arc welding
IPC: B23K9/025
Filed: 1946-08-16
Abstract: 615,872. Uniting by fusion. RANALAH, Ltd., and BENTHAM, H. M. F. Aug. 16, 1946. No. 24464. [Class 83 (iv)] Apparatus for welding the edges of a sheetmetal container comprises means for clamping in spaced relation the edges of the container and effecting the weld with a chain-traversed electrode. The container C is located on a mandrel 1 by an end stop pin 6 and a finger 7 which opens the seam and toggle clamping arms 18 are operated by a pedal 20 to secure the parts. A hinged arm 13 carrying a current supply wire 16 is swung by a handle 17 to connect the mandrel with the current supply and engages the locating members 6, 7 to withdraw them from the seam. The electrode 25 energized by a cable 16a is mounted on a carriage 28 moved during welding by a pin 44 engaging a sprocket chain 42 and returned by hand. The pin 44 is engaged with the chain by a hand lever 46 and is retained in position by a pin 47 engaging a cam slot 48. The electrode holder 26 is pivotally mounted on the carriage and is lifted at the end of the seam by a pin 33 on the holder engaging a cam-track 35.
Patent GB-1461878-A (GB)
Title: Ceramic structure for use as a heat exchanger and method of makint it
IPC: B28B1/00
Filed: 1974-06-03
Abstract: 1461878 Forming layered ceramic structures W R GRACE & CO 3 June 1974 [14 June 1973] 24474/74 Heading B5A [Also in Divisions B3 and F4] A method of preparing a ceramic structure for use as a heat exchanger comprises (i) preparing a mixture containing (a) a powder which can be sintered to a ceramic material, (b) an olefin polymer and (c) a plasticizer, (ii) shaping the mixture to form a plurality of pieces of flat sheeting, a face of each piece of sheeting having a plurality of ribs thereon, (iii) superimposing a plurality of the pieces of sheeting to form a layered structure so that the ribs of each piece of sheeting extend transversely of the ribs of an adjacent piece of sheeting and so that the ribbed face of a piece of sheeting faces the unribbed face of an adjacent piece of sheeting, (iv) heat sealing the ribs of each piece of sheeting to an adjacent piece of sheeting, (v) extracting the plasticizer, (vi) heating the structure to remove the olefin polymer and (vii) heating the structure to sinter the powder to a ceramic material. The structure may be cut after extraction of the plasticizer to form bodies of desired shape (see Fig. 5). The pieces of sheeting may comprise sheets or strips. The structure may be formed by simultaneously winding two or more reinforced sheets on a mandrel and heat sealing. The mixture may be shaped into sheets by extruding and pressing the extrudate in a hydraulic press. The ribs may be formed on the sheets by passage through heated grooved rollers. A pair of moulding systems may be used, with the grooves in the rollers of one system producing ribs transverse to the ribs formed by passage through the nip of the rollers of the other system. The olefin may be a high molecular weight polyethylene or ethylene butylene copolymer i.e. 150,000-2,000,000. The plasticizer may be a mineral oil extractable by hexane, heptane, pentane, chlorinated organic solvents or ethers. The powder may be spodumene (LiO 2 , Al 2 O 3 , 4SiO 2 ), mullite (3Al 2 O 3 , 4SiO 2 ), alumina, magnesia-alumina, spinel or cordierite (2MgO.2Al 2 O 3 .5SiO 2 ).