baber/WOPTO huggingface dataset:
Patent GB-393755-A (GB)
Title: An improved wireless receiving system
IPC: H04B1/26
Filed: 1932-06-16
Abstract: 393,755. Valve circuits for wireless reception. ARDENNE, M. VON, 19, Jungfernstieg, Lichterfelde, Berlin. June 16, 1932, No. 16997. Convention date, June 18, 1931. [Class 40 (v).] A superheterodyne receiving circuit, for the reception of an ultra-short, carrier wave modulated by a very wide signal band, comprises an intermediatefreauencv amplifier capable of handling frequencies of from 3 million to 15 million cycles without discrimination. The aerial 1 which may be at the focus of a parabolic reflector is tuned by the circuit 3, 4, and the local oscillator 6 feeds a coil 12 also in the grid circuit of the mixing-valve 13. This valve is of the screen-grid type and is coupled by a choke or resistance 16, capacity 19, and leak 22 to a similar pair of intermediatefrequency amplifiers 14, 15. The second detector 24 is resistance-capacity coupled to an aperiodic amplifier 26 capable of handling the signal band without discrimination and feeding the final receiver 27, e.g. a television receiver. The amplifier 26 preferably comprises screengrid valves, the plate resistances being of 7000-15000 ohms, the grid leaks 5-10 megohms, and the coupling capacities À005-À01 microfarads. The modulating or signal band of frequencies may extend to several million cycles.
Patent GB-690378-A (GB)
Title: Improvements in or relating to clutch control apparatus
IPC: F16D23/12
Filed: 1948-06-24
Abstract: 690,378. Clutches; reversing-gearing. MATHERS, J. H., [trading as MATHWAY MARINE]. July 25, 1949 [June 24, 1948], No. 17002/48. Class 80 (ii). Actuating means for a plate clutch comprises two or more tubular toggle bars 7 each pivoted at its inner end to a sleeve 69, slidable on the driven shaft 53 under the control of a collar 136 operable by a lever 85, and each housing a pin 66 pressed by a spring 67 into engagement with one arm 63 of a bell-crank lever, the other arm 60 of which carries an adjustable screw 62 engaging the end of a longitudinally-movable clutch-engaging pin 56. The arm 63 extends through a slot 64 in the outer end of the bar 7, and, in clutch-disengaged condition (as shown in the upper part of Fig. 3), abuts against the outer end of the slot 64. As the sleeve 69 is moved to the left to clutch-engaged position, in which it passes just beyond vertical dead-centre, (as shown in the lower part of Fig. 3), the outer end of the slot 64 moves clear of the arm 63, so that the arm 63 is then operated solely through the spring 67 and by the centrifugal effect of the parts. In the marine reversing-gear shown in Fig. 1, the clutch effects forward drive and comprises two sets of plates, the left-hand set 36 connecting an engine-driven drum 27 to a drum 40 and the right-hand set 46 connecting the drum 40 to a drum 50 secured to the shaft 53. The clutch-engaging pins 56 slide in projections 122 of the drum 40, to which the bellcrank levers 60, 63 are pivoted, and act on the plates 46 which in turn act on the plates 36 through interposed pins 44, so that the two sets engage simultaneously. The control lever 85 is operated as described in Specification 663,.078. Reverse drive is obtained by releasing the clutch and braking the drum 40, which carries bevel planet gears 79 engaging bevel wheels 74, 77 secured to the drums 27, 50.
Patent GB-996497-A (GB)
Title: Wide-cut hydrodesulphurisation
IPC: C10G45/02
Filed: 1962-05-04
Abstract: A wide-boiling crude oil feed containing naphtha, kerosene, and diesel oil fractions is hydrodesulphurized in a process which comprises the steps of heating the crude feed, flashing at 0-30 p.s.i.g. and at a temperature which flashes off as vapour the diesel and all lighter fractions, condensing the vapour as a single wide-cut fraction, passing said fraction as a stream through a heating zone at at least 100 p.s.i.g. to cause at least partial vaporization, introducing said heater stream together with added hydrogen into a hydrodesulphurizing zone at at least 100 p.s.i.g., e.g. 400-500 p.s.i.g., for example in the presence of cobalt molybdate, and fractionating the desulphurized effluent at below 100 p.s.i.g. to obtain separate products of narrower boiling ranges.  Spent gases, containing H2S &c. may be recycled after removal of the H2S by amine scrubbing.
Patent GB-186666-A (GB)
Title: Improvements in machines for cutting or slicing ingots
IPC: B23Q5/00
Filed: 1921-06-23
Abstract: 186,666. Liebert, H. A. E., and Holroyd & Co., Ltd., J. June 23, 1921. Lathes.-A lathe for cutting up ingots is provided with simplified headstock gearing comprising a large spur-wheel 5 mounted on a shaft 3 supported in pedestal bearings 1, 2 and actuated by a pinion 7 driven through worm transmission 10 from an electric motor 9. In a modification, the spur-wheel may be mounted behind the bearing 2 of the shaft 3. Reference has been directed by the Comptroller to Specifications 22838/09, 47/14, and 109,876.
Patent GB-631213-A (GB)
Title: New vat dyestuffs of the anthraquinone series
IPC: C09B1/42
Filed: 1947-06-30
Abstract: Dyes are made by acylating one molecular proportion of a 4.8-diamino-1-aroylaminoanthraquinone with at least two molecular proportions of an acylating derivative of an anthraquinone-2-carboxylic acid which carries in the 1-position an amino group, a nitro group or a halogen atom, so that two acyl radicals are introduced.  The nitro group or halogen atom may be subsequently converted to amino.  Examples describe the reaction of 1-nitro-anthraquinone-2-carboxylic chloride with 4.8-diamino-1-benzoylamino- and 1-p-methoxybenzoylamino-anthraquinone. 4.8-Diamino-1-p-chlorbenzoylamino and the 1-p-toluylaminoanthraquinone are referred to as starting materials. The 4.8-diamino-1-aroylamino-anthraquinones employed are prepared by reduction of the corresponding 4.8-dinitro bodies with sodium sulphide.  Specifications 219,830 and 230,116, [both in Class 2 (iii)], are referred to.
Patent GB-296159-A (GB)
Title: Improvements in or relating to air and gas washing apparatus
IPC: B01D47/08
Filed: 1927-06-28
Abstract: 296,159. Bassler, E. M. June 28, 1927. Scrubbers and washers.-Gas washing apparatus comprises a main housing A into which gas is delivered by a pipe 5, washed gas escaping through opposed slots 9 in its side walls communicating with a bustle pipe 10. A spraying wheel B mounted below the admission opening 4 comprises a disc 12 with a conical central projection 13 and diverging pins 14 which extend across a restricted opening 16 between the top wall 3 of the housing and the disc. A water jet is discharged against the apex of the projection 13 from a nozzle 18 of large bore and the disc is rotated by means of a belt and a driving pulley 31 on its shaft 26. An annular plate 17 surrounds the disc and extends below it so as to baffle the mixture of gas and water projected by the disc. Water and solids are drained from the housing into a settling tank 23 from which water is returned to the nozzle 18 by a pump 22. The conical projections 13 may be dispensed with. Additional water may be supplied to the disc through a pipe 32 at a distance from the centre should too coarse a spray be produced by passage of the water from the central jet. Reference has been directed by the Comptroller to Specifications 14483/01 and 254,130.
Patent GB-1469103-A (GB)
Title: Circuit arrangements in telephone apparatus
IPC: H04M1/30
Filed: 1973-04-10
Abstract: 1469103 Automatic exchange systems GENERAL ELECTRIC CO Ltd 8 April 1974 [10 April 1973 22 June 1973] 17183/73 and 29781/73 Heading H4K In a subscribers telephone set of a type which includes a capacitor for powering an impulse transmitter during line breaks caused by dialling, a rectifier bridge for charging the capacitor comprises a pair of diodes 501, 502 and a pair of transistors 521, 522. The diodes 501, 502 are preferably Zener diodes. The capacitor (not shown) may be connected across terminals +, - either directly or via a charging circuit.
Patent GB-1150693-A (GB)
Title: Pipe Fitting Machine
IPC: F16L41/06
Filed: 1966-08-08
Abstract: 1,150,693. Sawing. WALTER TREVATHAN CORP. 8 Aug., 1966 [23 Aug., 1965; 6 April, 1966], No. 17217/68. Divided out of 1,128,410. Heading B5L. The subject matter of the present Specification is identical with that described in Specification 1,128,410 but the claims are directed to a machine for cutting a first length of pipe to fit a second length of pipe, the machine having a cutting head including a tubular body with cutting elements at its lower end, and bracing means to prevent deflection of the cutting head during cutting of the pipe.
Patent GB-1431874-A (GB)
Title: Resol resins
IPC: C08G8/20
Filed: 1974-04-19
Abstract: 1431874 Resol resins BAYER AG 19 April 1974 [19 April 1973 16 Aug 1973] 17254/74 Heading C3R A process for the production of a resol comprises the condensation of formaldehyde, or a formaldehyde donor, at a pH of greater than 7, with a condensation resin having a phenolic OH group content of from 6À2 to 8À5% wt., which has been obtained by condensing a mixture of α,α<SP>1</SP>-dihydroxy-1,3- and 1,4- diisopropyi benzenes in proportions, by weight, of from 70 : 30 to 30 : 70 with an excess of at least one phenol which has at least two free ortho- or para-positions in the presence of an acid of phosphorus. The condensation of formaldehyde and the said resin may be carried out in the presence or absence of a basic catalyst in an aqueous or aqueous alcoholic medium. The proportion by weight of HCHO (100%) to the condensation resin is generally from 1 : 8 to 1 : 1. Suitable phenols are phenol, o-, p- and m-cresol, m-isopropyl phenol, 3,5-xylenol and 3,5-diisopropyl phenol. Suitable acids of phosphorus are phosphoric and phosphorous acids; acids of the formula e.g. phenol and alkyl phosphonic acids; monophenyl- or monocresyl phosphate; and acid salts, e.g. ammonium or sodium dihydrogen phosphate. A solution of the resol in an organic solvent may be hardened to the resite by heating to 100-300 C. optionally in the presence of an acid and/or epoxy resin, melamine resin, polyester resin or polycarbonate. Uses.-Casting resins; foams; lacquers and electro-insulation.
Patent GB-895481-A (GB)
Title: Improvements in or relating to door latching mechanisms
Inventor: MERRIFIELD DOUGLAS HELIER
IPC: E05B65/20
Filed: 1957-05-31
Abstract: 895,481. Securing handles on shafts. WILMOT-BREEDEN Ltd. May 27, 1958 [May 31, 1957], No. 17280/57. Class 80 (2). [Also in Group XXV] A door-latching mechanism, which prevents inadvertent opening, e.g. of vehicle doors, comprises a lever handle 11 which is connectable by a spring-loaded clutch to an actuating spindle 17 which is bored at 17 to receive one end of an operating shaft of the door - latching mechanism. The spindle 17 has a flange 18 which is rotatable, and retained by a spring ring 19, within the largest end 14 of a stepped bore 13 formed in a boss 12 at one end of the handle 11 and which is counterbored at 23 to receive a compression spring 26 and a non-rotatable, but axially movable, disc 25. The central portion 16 of the stepped bore 13 accommodates the head 29 of a cam-plug 27 the stem 28 of which is rotatably and slidingly engaged in the smaller end 15 of the stepped bore 13. The cam-plug head 29 engages the upper face of the disc 25 which has radial and axial tags 30, 31 which engage respectively in slots 24, 32 formed in the head 29 and the stepped part of the bore 13 between the portions 13, 16. A cam surface 33 on the cam-plug head 19 has diametrically opposed pairs of minor and major recesses 34, 35 which co-operate with minor and major lobes on a mating cam surface on the outer end of the central portion 16 of the stepped bore 13. When the cam-plug 27 is in the position shown in Fig. 1 the mating cam surfaces 33, 36 coincide the tags 31 engaging the slots 32 under the thrust of the spring 26 to provide driving engagement between the handle 11 and the spindle 17. Upon turning the camplug through 90 degrees by engaging a slot 38 in the stem 28, e.g. by the end of an ignition key, so that major and minor recesses and lobes do not coincide, the tags 31 are disengaged from the slots 32 to release the driving engagement between the handle 11 and the spindle 17. Lugs 39 at the open end of the smallest portion 15 of the stepped bore 13 limit rotation, e.g. of the ignition key, to 90 degrees.
Patent GB-1005684-A (GB)
Title: Improvements in or relating to radar and other receivers
IPC: G01S7/36
Filed: 1963-05-02
Abstract: 1,005,684. Electric analogue calculating. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. May 2, 1963 [May 2, 1962], No. 17305/63. Heading G4G. [Also in Division H4] A non-linear, e.g. logarithmic, receiver circuit arrangement comprises a plurality of limiting amplifiers in cascade, the amplifiers having a bandwidth greater than that of the input signals ; a like plurality of filters, each fed with an output from a different amplifier and each having a bandwidth corresponding to that of the input signals; a like plurality of threshold units each fed with signals from a different filter; and summation means for providing output signals from the sum of the outputs of the threshold units. In the radar receiver shown I.F. signals pass to four identical wide-band limiting amplifiers A1-A4 each of which feeds a narrow-band filter F1-F4, a detector D1- D4, and a variable level threshold amplifier E1- E4. The outputs of E1-E4 are added in unit S and pass to utilization means (not shown), e.g. a pulse length discriminator. The threshold levels of amplifiers E1-E4 are determined by potentials s1-s4; s1-s3 normally remain constant at a value such that the output noise or interference level is determined by s4, whilst s4 is adjusted, manually or automatically, during use, for example in dependence on the noise or interference level at the input lead 1. The output level may be approximately a logarithmic function of the input signal level.
Patent GB-203660-A (GB)
Title: Improvements in electrical condensers
IPC: H01G5/12
Filed: 1923-07-04
Abstract: 203,660. Western Electric Co., Ltd., (Assignees of Craft, E. 13.). Sept. 6, 1922, [Convention date]. Condensers. - The fixed member of a variable air condenser comprises plates 8 tapering towards the axis, while the plates 6 of the movable member taper in the opposite direction. The plates 8 are held in position by lugs 9 cast integrally with them, the outer lugs being formed with extensions 10 in which are cast studs 11. These studs are passed through perforations in insulating bridge members 12, the ends of the studs being spun over washers 13 to secure the bridge members in position. The plates 6 are cast integrally with a tubular shaft portion 7, in which may be inserted, by casting or other means, a shalt 15. The upper end of this shaft passes through the upper bridge member and carries an operating knob 18, while the lower end passes through the lower bridge member and engages a cup-shaped portion 21 in a spring 22. One end of the spring is rigidly secured to the lower bridge member by means of of belt 23 and nut 24, the other end being forked to engage an adjustable screw 25 carried by the bridge member. The condenser may be secured to a panel 17 by screws 16 which engage threaded openings in the upper lug extensions 10.
Patent GB-973865-A (GB)
Title: Baler
IPC: A01F15/08
Filed: 1963-05-02
Abstract: 973,865. Baling-machines. R. CLAAS. May 2, 1963 [Oct. 16, 1962], No. 17384/63. Heading B5F. A hay &c. baler comprises a bale shoot pivotally mounted adjacent the outlet of the bale passage, the bale shoot comprising guiding and carrying bars 20, 21 interconnected by cross-bars 22 and some of the interconnections comprise flexible or hinged joints 23, 24 (Figs. 3 ... 6, not shown) to reduce torsional stresses in the shoot.
Patent GB-624320-A (GB)
Title: Improvements in, or relating to, means for spreading manure and other material on ground surfaces
IPC: A01C3/06
Filed: 1947-07-02
Abstract: 624,320. Manure distributers. SALOPIAN ENGINEERS, Ltd., BATKIN, H. W., and BURN, R. M. G. July 2, 1947, No. 17399. [Class 6(i)] Relates to manure distributers of the type wherein a trailer vehicle is provided with an end, less conveyer 16, 17 feeding manure rearwardly to spreader devices 24, 25, 26. According to the invention the conveyer is driven from the tractor power take-off through a pawl and ratchet mechanism. The spreader devices comprise a pair of cutter drums 24, 25 which shred and feed manure to the rotary beater 26. These devices are journalled in a framework mounted at the open rear end of the vehicle, and are connected by chain and sprocket drives to a transverse shaft 40 driven, through bevel gearing 38, from a longitudinal shaft 34 extending along the centre of the vehicle beneath the conveyer. The front end of the shaft 34 is coupled through a clutch 33 and universal joints 32, 30b, to the power takeoff of the towing vehicle. The front of the trailer includes a sub-frame 11 on which the front bearings of the shaft 34 are mounted. This sub-frame carries a retractable wheeled jack 64 which supports the trailer when not being towed. The endless conveyer comprises chains entrained over sprockets 18, 19 and interconnecied by slats 16. The rear sprockets 18 are mounted on a shaft 60 which is rotated step-by-step through the action of pawl and ratchet mechanism 61, 62, 63, operated by a crank rod 57 pivoted to a sprocket 51 driven from the shaft 28 of one of the cutter drums 25. The point of attachment of the crank rod is adjustable radially on the sprocket 51.
Patent GB-1058902-A (GB)
Title: Electric switch manufacture
Inventor: ASHMAN JOHN ROBERT
IPC: H01H13/06
Filed: 1963-05-03
Abstract: 1,058,902. Retractive switches; switch cases. DOWTY ELECTRICS Ltd. July 31, 1964 [May 3, 1963 (2)], Nos. 17493/63 and 17494/63. Heading H2B. A method of switch adjustment to facilitate switch operation by a predetermined movement of the switch plunger after assembly is provided for by the switch-actuating projection 44 of the plunger assembly being a screw located in a bore of a plunger 40 operated by depression of a plunger 42. Springs make the plunger 42 retractive and allow for overtravel movement. Projection 44 operates a switch actuating lever 25 of a snap-action mechanism which is initially adjustable by appropriate bending of the fixed contact strips 35, 36 and rotation of an adjustable stop 31 to alter the contact pressures between movable contact 28 and the fixed contacts 35, 36. The metal cover 1 and base 2 are maintained in contact by abutment 55 of the cover 1, during adjustment of projection 44, and are soldered together when all adjustments have been made. Inert gas may fill the interior. The terminal posts 13, 14, 15 are enclosed by an insulating moulding 47 riveted to the cover 1, and a cold setting resin 51 fills the space between moulding 47 and base 2. The switch is mounted by bolts through transverse tubes 50 on the base 2.
Patent GB-273747-A (GB)
Title: Improvements in or relating to seats, sofas, stools and other furniture for sitting and reclining upon
IPC: A47C1/025
Filed: 1927-07-01
Abstract: 273,747. Boery, J. July 2, 1926, [Convention date]. Seat adjustments. - ileans for angularly adjusting the back K of a chair comprise arms A connected by a transverse bar B and each carrying a wheel D and a grooved pulley E, together with cables F passing over the grooved pulleys, springs G to keep the cables taut, and a spring H to hold the wheels D against their housings I and thus produce a braking effect, on the wheels. To adjust the inclination of the back, the wheels D are pressed downwards and then rotated.
Patent GB-963378-A (GB)
Title: Smoking composition and method of imparting flavour thereto
IPC: A24B15/30
Filed: 1962-05-08
Abstract: Clathrates are formed between the host compounds tri-o-thymotide and a -, b - and g -cyclodextrin and the following guest compounds:-menthol, menthone, thymol, myrcene, p-cymene, pinene, limonene, cineol, anethole, geraniol, citronellal, linalool, pyridine, o-, m- and p-cresol, acetophenone, cyclo-hexanone, coumarin, 2, 4-hexadienal, methyl salicylate, ethyl n-caprylate, toluene and n-octane. The tri-o-thymotide clathrates are prepared by heating the host and guest compounds together and then washing with a solvent 2, 2, 4-trimethylpentane or by heating them in the solvent. The cyclodextrin clathrates are prepared by adding the guest compound to an aqueous solution of the cyclodextrin.ALSO:Clathrates are formed between the host compounds a -, b - and g -cyclodextrins and the following guest compounds: menthol, d-limonene, anethole, cyclohexanone, ethyl-n-caprylate, coumarin, pyridine, o-, m- and p-cresols, 2,4-hexadienal, n-octane, linalool, geraniol, methyl salicylate, vanillin, acetophenone, menthone, citronellal, myrcene, cineol, thymol, pinene, p-cymene, toluene, oil of lemon, sweet oil of orange and true peach fruit concentrate. These clathrates are prepared by adding the guest compound to an aqueous solution of a cyclodextrin and allowing to stand with occasional agitation. The product precipitates out from the solution.ALSO:Clathrates are formed between the host compounds tri-o-thymotide and a -, b - and g -cyclodextrins and the following guest compounds: p-cymene, b -limonene, myrcene, pinene, n-octane, toluene, oil of lemon and sweet oil of orange.  The tri-o-thymotide clathrates are prepared by heating the host and guest compounds together and then washing with a solvent 2,2,4-trimethylpentane or by heating them in the solvent. The cyclodextrin clathrates are prepared by adding the guest compound to an aqueous solution of the cyclodextrin.ALSO:Tobacco is treated by adding a minor proportion of an inclusion complex of a host compound and a guest tobacco-flavouring material, the flavouring material being capable of release on combustion of the tobacco.  The host compound may be a cyclodextrin or tri-o-thymotide.  The preferred flavouring material is menthol but many other suitable terpenes and other organic flavouring compounds including essential oils are mentioned.
Patent GB-237244-A (GB)
Title: Improvements in feeding mechanism for continuous baking ovens
IPC: A21B3/07
Filed: 1925-07-09
Abstract: 237,244. Nistle, F. P. July 17, 1924, [Convention date]. Bisucits: setting-appliances.- A device for feeding dough portions on to the endless band of a " travelling " oven consists of a roller track having a depressed portion intermediate the feed and delivery ends for passing the dough through a liquid bath. The rollers 12 are mounted in sideplates 10, 10<a>, 15 carried by a framework 11, and the plates 15 supporting the rollers at the delivery end are pivotally attached to the main side-plates 10 and rest at their free ends by means of shoes 50 on the oven conveyer 5. Each roller is mounted in a bearing-block 18 fitting in a slot 19 in the sideplate, and all the blocks are secured in position by a cover plate 19<a>. The rollers are driven from a motor 36 by endless chains 25, 30, and adjacent rollers have their driving pinions 20 at opposite ends to allow closer spacing. Above the liquid bath is a second set of rollers 12<c> for preventing floating of the dough portions, and these are also driven from the chain 25 as shown in Fig. 3. At the delivery end the extreme rollers 12<b> are smaller than the remainder, and are driven by an endless chain 35<a> from the chain 30. The bath 42, which may contain a lye solution, is heated by burners and liquid is supplied thereto from a tank 45 by a pump, a constant level being maintained by the overflow pipe 47.