baber/WOPTO huggingface dataset:
Patent GB-671616-A (GB)
Title: Improvements in the reduction of chromium oxide and in the production of chromium-containing steels and alloys
IPC: C22B34/32
Filed: 1950-06-05
Abstract: A method of reducing chromic oxide by carbon comprises preparing a stoichiometrical mixture of chromic oxide and carbonaceous reducing agent, pelleting the mixture, heating the pellets under reduced pressure or under atmospheric pressure at a temperature at which the reaction proceeds but below the melting point of any part of the pellets until there is a marked reduction in the volume of evolved reaction gas, cooling and comminuting the treated pellets, readjusting the composition of the comminuted material, if necessary, to obtain a stoichiometrical balance between carbon and oxygen, pelleting the comminuted material and heating the pellets under reduced pressure at a temperature at which the reaction proceeds but below the melting point of any part of the pellets until there is a marked reduction of the volume of evolved gas.  The reduction steps conducted under reduced pressure are preferably so conducted that the temperature is increased incrementally between 1250 DEG C. and 1400 DEG C. to maintain a reduced pressure of about 2.5 mm. mercury prior to the said reduction of volume of evolved gas.  Nickel or cobalt or other non-volatile metals may be introduced into the product by adding them or their oxides or carbides to the original mixture.  The resulting highly-compacted, porous, cohesive, non-friable aggregate may be added to molten metal baths for the production of chromium-containing steels or other alloys.
Patent GB-567353-A (GB)
Title: Improvements in the manufacture of tetrazole compounds
IPC: C07D257/04
Filed: 1943-08-27
Abstract: 1.2.3.4-Tetrazole compounds, containing a substituted or unsubstituted hydrocarbon group in the 1-position and a mercapto group in the 5-position and tautomers thereof, are made, in the form of their alkali metal salts, by reaction of a compound of the formula R.NH.CSSR1, where R and R1 represent substituted or unsubstituted hydrocarbon groups, with an alkali metal azide.  The free tetrazoles are obtained by acidification of the alkali-metal salts in solution. The mercaptan R1SH, split off during the reaction, constitutes a valuable by-product. In examples: 1-methyl-, phenyl-, cyclohexanyl-, (21 - methoxy) - phenyl-, (41 - chloro) phenyl-, benzyl- and a - and b -naphthyl-5-mercapto-1.2.3.4-tetrazoles are made from the corresponding N-substituted dithiocarbamic acid methyl esters and sodium azide in an aqueous ethyl alcohol medium with subsequent acidification.  Any other substantially inert solvent or solvent mixture may be used.  Other specified groups, R, are ethyl or higher alkyl, naphthylmethyl, diphenyl and cyclopentanyl and other substituents which such groups may carry are halogen atoms, nitro, amino, substituted amino, hydroxy, alkoxy and hydroxyalkyl groups. Also the group R may carry a second -NH.CSSR1 group, whereupon bis-tetrazole compounds are formed.  Thiocarbamic esters of the above general formula are prepared by reaction of an amine of the formula R.NH2 with carbon disulphide in the presence of a strong base, e.g. caustic soda, to give, e.g. a compound R.NH.CSSNa, and treating this with an ester, R1X, where X represents the residue of a strong acid, e.g. a mineral acid or p-toluene sulphonic acid.  Where a diamine such as p-phenylene diamine or benzidine is used, the product contains two -NH.CSSR1 groups.  Thus, N-cyclohexanyl dithiocarbamic acid methyl ester is prepared from cyclohexylamine, carbon disulphide, caustic soda and dimethyl sulphate.
Patent GB-820671-A (GB)
Title: Means on photographic and cinematographic fixed focus objectives for indicating the depth of field
IPC: G03B17/02
Filed: 1957-05-02
Abstract: 820,671. Photographic cameras. SCHNEIDER, M. C. May 2, 1957 [July 14, 1956], No. 14005/57. Class 98(1) For indicating the depth of field on a fixed focus objective, an aperture setting ring carries, in addition to a stop number scale, one or more focus limit scales, a stationary lens mount having a window each for the stop number and focus limit scales. As shown, an annular extension c<SP>1</SP> of an aperture setting ring c carries stop number and distance scales; such that for a certain stop setting, the stop number g appears in a window i in a ring a<SP>3</SP>, and the new value of the limit of satisfactory focus is indicated at h through a window k whilst the far value (#) is engraved on the outside of the ring.' Additional coloured scales may be provided for use with auxiliary lenses, and if the far limit is not at infinity, a second scale (not shown) may be provided.
Patent GB-1536249-A (GB)
Title: Railway rolling stock bogie truck frame
IPC: B61F5/52
Filed: 1977-04-04
Abstract: 1536249 Rail vehicle bogie constructions SOC DES ACIERIES DE PARIS ET D'OUTREAU 4 April 1977 [12 April 1976] 14055/77 Heading B7L A rail bogie comprises side frames 2 interconnected by a rigid cross member, each frame having a member 1 integral or rigid therewith for mounting the cross member, each member having a cylindrical portion to which the cross member is welded. The construction prevents stress concentration.
Patent GB-567859-A (GB)
Title: Improvements in or relating to mechanical stokers
IPC: F23H11/10
Filed: 1943-08-30
Abstract: 567,859. Supplying air for combustion. SMYTH, C. R. W. Aug. 30, 1943, No. 14121. [Class 51 (i)] A chain or travelling grate forced draught stoker is provided with means for controlling the air supply to different parts of the upper run of the grate consisting of a rear chamber and an adjacent chamber nearer to the front of the grate, the rear chamber being supplied with air at at a lower pressure than the adjacent chamber, and means for regulating the air supply to different zones of the grate above the rear chamber and for varying the effective lengths of the rear and adjacent chambers. As shown in Fig. 1A, partitions 45, 60 and 42 divide the space beneath the upper run of the grate into chambers 48, 59. Air is supplied to the chambers 48 through a sealed ashpit 40 and is supplied from the chamber 48 to the rear chamber 59 at a lower pressure through sliding plate valves 65, Fig. 3, controlling apertures 64 in the partition 60. The valves 65 are mounted on pins 66 and are moved to and from the apertures 64 in the partition by'rods and levers operated from the side of the stoker frame. Above each of the compartments 48, 59 are arranged a number of V-shaped troughs or compartments 76 open at the top and provided with pivoted dampers 78 for controlling the air supply to different zones of the grate above the chambers 48, 59. In the modification shown in Fig. 4, the chambers 48 and 59<1> are separated by a vertical partition 60<1> and inclined partitions 60<11>, 60<111> each provided with air ports 64<1>, 64<11>, 64<111> controlled by valves 65 pivotally mounted at their lower-edges adjacent the lower edges of the ports in the central partition 60<1>. By adjusting the valves to register with the ports in either of the partitions the effective lengths of the rear and adjacent chambers 59<1>, 48 may be varied. Alternatively the valves may be adjusted so that all ports are open and the rear and adjacent chambers are in communication. The front and rear chambers are also provided with valvecontrolled subsidiary chambers 76 for controlling the air supply to the front and rear zones of the grate. The valves 65 in the partition 60<1>, may be adjusted so as to restrict the ports in the partition walls and reduce the air pressure in the rear chamber. Fig. 6 shows a further modification, the front and rear chambers 48, 59<1> are separated by three partitions 60<1>, 60<11> 60<111> provided with ports controlled by pivoted valves 65<1>, 65<11>, 65<111> and trough-shape chambers divided by partitions 93 and provided with valves 78 control the air supply to the various zones of the grate above the chambers. Secondary air is supplied to the combustion chamber above the front and rear of the grate.
Patent GB-793928-A (GB)
Title: Improvements relating to methods and means of operating aircraft
Inventor: GRIFFITH ALAN ARNOLD
IPC: B64D39/00
Filed: 1952-06-04
Abstract: 793,928. Refuelling aircraft. ROLLSROYCE, Ltd. Sept. 3, 1953 [June 4, 1952], No. 14154/52. Drawings to Specification. Class 4. An operational aircraft is supplied, while in the air, with fuel from a tanker aircraft. Both aircraft have two sets of gas turbine jet engines, one set having a vertical and the other a horizontal, line of thrust. No major aerofoil surfaces are provided on the tanker. The craft are connected by a fuel line while on the ground and take off vertically together. The combination then flies horizontally and with the generation of aerodynamic lift in the operational aircraft, fuel is transferred from the tanker. Specification 720,394 and 756,320 are referred to.
Patent GB-360880-A (GB)
IPC: A47G23/03
Filed: 1930-05-08
Abstract: 360,880. Studs; spanners. KIPLING, A. W., 42, Rue AmpÞre, KNIPPER, E., 141, Avenue des Batignolles, and CAMUS, A., 27, Passage St-Ange, all in Paris. May 8, 1930, No. 14158. Convention date, May 31, 1929. Void [Published under Sect. 91 of the Acts]. [Class 89 (i).] The stud 1 has a medial flange to engage a recess in the work and passes through an eyelet 4 in the member to b e secured. The stud can be adapted for use as an electrical connection by securing the wire 8 to the eyelet and the wire 7 to a hole in the stud. The stud is screwed into the work by a tool 9, the recess 10 of which engages the collar on the stud. The nut can be screwed on by the spanner 11, being gripped by the split conical socket 14, and released when desired by depressing the conically ended plunger 12.
Patent GB-540353-A (GB)
Title: Improvements in electrical systems for remote control and supervision
IPC: H02J13/00
Filed: 1940-09-20
Abstract: 540,353. Signalling over power circuits. GENERAL ELECTRIC CO., Ltd., and BARTLETT, H. E. Sept. 20, 1940, No. 14382. [Class 40 (iv)] Single-phase high-frequency currents for controlling power-consuming devices are applied to the phase wires of the low-tension supply mains tbrough a transformer TS and a threelimbed choke coil CC or three condensers, and absorption of these currents by the sub-station power transformer is prevented by the use of a circuit TC, TI turned to the supply frequency and connected inductively between the starpoint of the transformer and the neutral wire. Specification 491,980, [Group XXXVII], is referred to.
Patent GB-769084-A (GB)
Title: Improvements in or relating to devices for improving the reception of radio signals in the presence of noise
IPC: H04N5/213
Filed: 1955-05-18
Abstract: 769,084. Pulse radar. COMPAGNIE GENERAL DE TELEGRAPHIE SANS FIL. May 18, 1955 [May 28, 1954], No. 14403/55. Class 40(7) A device for improving the signal to noise ratio of a receiver for receiving pulse .modulated signals (e.g. in a pulse radar) comprises, following the pulse detector in the receiver, an additive mixer adding the signal to pulses having the same recurrence frequency but greater width than the signal pulses and which are synchronized therewith, and a bottom dipper which blocks the output of the mixer except in the presence of the added pulses. The input pulses from amplifier 1 mixed with unwanted noise signals are fed both to the additive mixer 3 and to a comb filter 2. Filter 2 is tuned to the pulse recurrence frequency and passes the fundamental frequency and a considerable number of its harmonics. The output at f consists of a series of pulses of the signal recurrence frequency wider than, and rounded relative to, the signal pulses but freed from noise. If, as is suggested, the filter is of the magnetostrictive type the pulses at f will be delayed a time corresponding to half the pulse separation, it is therefore necessary to further delay them for an equivalent period in line 4 to bring them into synchronism again.' The pulses from the output of line 4 are amplified and squared up at 5 before application to the second input to the mixer 3. In the mixer they serve as pedestal pulses lifting the wanted signal pulses above the general noise level. The combined signal is fed to the output of the device through bottom clipper 6 which clips the input at a level equivalent to the top of the pedestal pulses. All noise is therefor suppressed except that occurring during the pedestal pulses. Preferably the delay line 4 is constructed in the same way as filter 2 and both are situated in a thermostatic housing. If the radar pulse generator includes a delay line this may be mounted in the same housing.
Patent GB-746845-A (GB)
Title: Improvements relating to domestic hot water systems
IPC: F24B1/183
Filed: 1953-05-22
Abstract: 746,845. Fireplaces. BAXENDALE, R., BAXENDALE, J., BAXENDALE, P. S., and BAXENDALE, M. J. May 7, 1954 [May 22, 1953], No. 14451/53. Class 126. In a flue arrangement for a domestic fire. back boiler, a rectangular passage behind the boiler leads into a flue of round or oval cross-section provided with a damper assciated with a cleaning door so as to be removed therewith. The damper 7 is secured to a spindle 8 mounted on the flue cleaning door 6, and removed with it to clean the flue. The door 6 closes an opening in an upper backwardly inclined part of a flue pipe 5 which fits into an opening at the top of the rectangular flue 4 formed behind the boiler.
Patent GB-260513-A (GB)
Title: Improvements in steam boilers
IPC: F22B17/16
Filed: 1925-10-03
Abstract: 260,513. Babcock & Wilcox, Ltd., (Bab cock & Wilcox Co.). Oct. 3, 1925. Water-tube boilers. - The water-tubes 10 are divided into two banks and connected at their ends to uptake and downtake headers 11, 12 which are formed as seamless tubes circular in crosssection. The headers are spaced apart at least the diameter of a water-tube and the ends of the water-tubes are bent alternately in opposite directions in successive rows vertically so as to stagger the tubes. Handhole fittings 24 are provided opposite the ends of each tube. The two lowermost rows of tubes 14, 15 are of larger diameter than tubes 10. A transverse baffle 17 provides two passes for the gases, directing them to an outlet 14a leading to an economizer 15a. To assist in angling tubes 10 when being withdrawn between the headers apertures in the baffle through which the tubes pass are made slightly larger than the diameter of a tube. Specification 254,922 is referred to.
Patent GB-708402-A (GB)
Title: Improvements in or relating to soldering machines
Inventor: CHAUSSON GASTON
IPC: B23K1/00
Filed: 1952-06-09
Abstract: 708,402. Soldering. SOC ANON DES USINES CHAUSSON. June 9, 1952, No. 14476/52. Class 83 (4) In a soldering machine the parts to be soldered are fed on a continuously rotating table 12, Fig. 1, under heating elements which solder the parts and under water sprays which cool the parts before removal. Automobile radiator parts are heated by gas burners 59 adjustably located on an arm 58 which is vertically and angularly adjustable on a post 56. Water sprays 57 adjustably mounted on a post 55 and projecting radially over the table are disposed at such an angle to the burner arm 58 that the solder has time to solidify before reaching the sprays. The table 12 is supported by bearings 7 on a pedestal 1 and carries a friction wheel 54 which is driven by a motor 14 through a variable speed belt drive 24, worm gear 27, shaft 30 and friction wheel 31. The mounting 33 for the worm gear 27 and shaft 30 is pivoted at 34 to the machine base and the shaft 30 is adjustably loaded by a spring 43 on a stirrup 48 attached to the pedestal 1 to maintain the friction wheels 31, 54 in driving engagement. The mounting 16 for the motor 14 is pivoted at 17 to the base and loaded by a counterweight 21 to maintain the belt 24 under tension. Stops 64 prevent the motor from dropping in the event of the belt breaking. The base 67 of the table 12 slopes downwards towards the centre and a central hole 68 is provided for the escape of the cooling water into the interior of the pedestal from which it passes through a hole 72. Tanks 64 &c. arranged under the table are provided for pickling, storing &c. of parts. In soldering a base tube 77, Fig. 4, to a cooling radiator tank 76, supports 75 for locating the tank and tube in their correct relative positions are mounted on the table. The supports 75 have feet 74 located on the table by projections 73 and have profiled plates 78 for locating the tank 76 and vertically projecting plates 79 for locating the tube 77. The parts are assembled manually with a ring of soldering material 80 placed at the joint.
Patent GB-929047-A (GB)
Title: An improved shelf supporting bracket
Inventor: MILLS SIDNEY
IPC: A47B57/42
Filed: 1962-04-14
Abstract: 929,047. Shelf brackets. BRADLEY & CO. Ltd. April 14, 1962, No. 14501/62. Class 52 (5). A shelf supporting bracket comprises an angle member having a first limb b<SP>2</SP> which is adapted to be passed selectively through a horizontal slot in a slat-like upright to bear against the back thereof and a second, shelf supporting limb b<SP>1</SP> provided with two side wings b<SP>3</SP> oppositely directed to said first limb b<SP>2</SP> and having vertical rear edges b<SP>4</SP> which abut the upright to locate the bracket.
Patent GB-1401734-A (GB)
Title: Portable sanitation device
IPC: E01H1/12
Filed: 1973-03-28
Abstract: 1401734 A portable sanitation device A J CASSIDY 28 March 1973 [20 April 1972] 14812/73 Heading B8C A portable sanitation device, for collecting stool of animals such as dogs, comprises a holder 10 for a disposable bag, the holder consisting of an open-ended annular member 20 with a continuous upstanding upper rim suitable for receiving the folded over edge portion of a disposable bag 12 while the main part of the bag extends within said annular member the annular member having an axial length considerably less than its diameter; a bag handle fixed to one side of said annular member and extending away therefrom upwardly with, respect to said upper rim and at a small angle to the axis of said annular member; and a lid 16, pivotally connected to said annular member 20 for movement between a closed position over said upper rim and forming a closure with said bag, and an open position in which the lid is well clear of said upper rim. As shown in Fig. 1, the holder 10 is formed of a cylinder 20 of metal e.g. aluminium, which has a diameter of about 5¢ inches and is approximately 2 inches long, the handle, formed of aluminium tubing of about 1 inch diameter, having a main portion 14a anp a lower portion 14b with a flange riveted to the cylinder 20, the main portion 14a being provided with a hand-grip 22. Means 18 for retaining the mouth of a bag folded over the upper rim the cylinder 20 comprises an elastic band 28 which is connected, at one end, to the outer flange 25b of a U-shaped metal bracket 25 which is open at its top side to receive the folded over edge of the bag and is riveted to the outer rim 21 of the cylinder 20 the other end of the band carrying a metal hook 30 which has a finger grip 31 and is adapted to engage in a slot 33 in the flange 25b to hold the band stretched around the folded-over mouth edge of the bag. The lid 16 has a downwardly-directed flange 16a into which is fitted an annular sealing strip, and is connected, at its centre, by a nut- and-bolt which includes a combined metal weight and finger grip 42, to a lever 40, the other end of which is pivoted at 44, 45 to the handle portion 14b so that the lid 16, which can be opened by imparting a flicking motion to the handle 14a, 14b is held open, Fig. 1, by gravity. The lid can be closed by reversing the flicking motion. The lid can also be opened and closed, by tilting the device. In a modification, Figs. 4, 5, not shown, the holder means (120) is formed from a strip of metal which is bent around to form a cylinder with its two adjacent end portions (121) forming flanges to which a flat, bifurcated lower end 114b of the handle is connected. The pivot arm 140 for the lid is pivoted to a shaft (151) carried by a plate (150) which is secured between the flanges (121), the upper ends of which are bent to form brackets (122) which mount the bag retaining- means (128).
Patent GB-840983-A (GB)
Title: Improvements in or relating to worsted drawing machines
Inventor: AMBLER GEOFFREY HILL
IPC: D01H5/22
Filed: 1957-05-10
Abstract: 840,983. Textile drafting apparatus. AMBLER SUPERDRAFT Ltd. May 9, 1958 [May 10, 1957], No. 14859/57. Class 120(2). In order to draft short fibres on worsted machines as used in the Bradford system, two pairs of small diameter rollers 13, 14, 16, 17 are interposed between conventional roller sets 11, 12, 18, 19, the small rollers being positively driven with both top rollers 13, 16 positively weighted. Roller 14 may be flanged and within the flanges the top roller 13 may fit closely. The top roller 13 is mounted in a bracket 46 pivoted on stub shafts 42, 43 and the top roller 16 is carried in a bracket 48 to which weights 57 are attached for loading the roller 16. Bracket 48 is also pivoted on stub shafts 42, 43. A weighting arm 59 is arranged to load the roller 13 more heavily then the roller 16 is loaded. An arrangement of gears for positive drive to upper and lower intermediate rollers from a shaft 29 that is common to many drafting units is described. The units are supported on a bar 23 adjustable with respect to the rollers 18, 19. According to the Provisional Specification hydraulic roller loading may be employed. Specifications 671,633 and 696,882 are referred to.
Patent GB-612736-A (GB)
Title: An improved insulated electric conductor
IPC: H01B3/08
Filed: 1946-05-16
Abstract: 612,736. Electric cables. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., TUNSTALL, H. A., EVANS, B. B., and JESSON, F. G. R. May 16, 1946, No. 14868. [Class 36] An insulated conductor consists of a wire 1, single or stranded, enclosed in a braid 2 of glass fibres treated with a binding substance 3 and covered with a layer 4 of vulcanized neoprene. The covering is resistant to oil, petrol and fire and with the braiding may be coloured to give easy identification by colour combinations. The binding substance may consist of a synthetic resin varnish, such as a mixture of alkyd and thermosetting resins.