baber/WOPTO huggingface dataset:
Patent GB-531120-A (GB)
Title: Improvements in dewaxing of hydrocarbon oils
IPC: C10G73/06
Filed: 1939-07-12
Abstract: 531,120. De-waxing oils. GROVES, W. W. (Edeleanu-Ges.). July 12, 1939, No. 20306. [Class 91] In de-waxing hydrocarbon oils by diluting with liquid sulphur dioxide and an auxiliary solvent increasing the solvent power of the dioxide, precooling by passing in countercurrent to the cold filtrate from the wax separator, and chilling by passing through double-pipe chillers in countercurrent to cold liquid sulphur dioxide, this sulphur dioxide is cooled in a separate vessel by evaporation of dioxide by suction. Auxiliary solvents specified are benzene, toluene, ether, ethylene chloride, and chloroform. For example, a raffinate oil diluted with liquid sulphur dioxide and benzene is forced by a pump 1 through a cooler 2 reducing the temperature to 0 to -10‹ C., and chillers 3, 4 reducing the temperature to -25‹ C. gradually to avoid shock chilling. The dioxide used in the chillers is cooled to -10‹ C. in an expansion chamber 6 by sucking off vapour by a pump 7, and then to -35‹ C. in an expansion chamber 11 by sucking off vapour by a vacuum pump 12; it is forced through the chillers by a pump 14 and returned to the chamber 6 by a pipe 15. The dioxide vapour from the chamber 11 is led by a pipe 13, and maybe through a cooler, to the chamber 6, and that from the chamber 6 compressed by the pump 7 and sent through a condenser 8, a receiver 5, and a valve 9 to the chamber 6. The chilled oil-benzene-sulphur dioxide is taken by a pipe 16 to a cellular drum filter 17, from which wax is led by a pipe 19 to an evaporator, and the filtrate is taken by a pipe 18 to the cooler 2 and a pipe 20 leading to an evaporator.
Patent GB-1183337-A (GB)
Title: A new or improved Programme Signalling Device
Inventor: BERTENSHAW NORMAN WRIGHT
IPC: G04C21/30
Filed: 1966-05-07
Abstract: 1,183,337. Time controlled signalling devices. N.W. BERTENSHAW and E.P.T. BERTENSHAW. May 2, 1967 [May 7, 1966], No.20321/66. Heading G3T. A device for generating signals at preselected times, e.g., for the reminding of business appointments comprises feed means engageable with opposed faces of a programme bearing chart to advance the chart relatively to a stationary sensing means responsive to marks on the chart to produce signals for operating warning or indicator means. A chart as illustrated in Fig. 5 has on the lefthand side two printed columns 14, 15 and a time scale, and on the righthand side a space for inserting particulars of appointments or other memoranda. Pencil marks made in columns 14, 15 provide preliminary warning and main signals, respectively, when the chart is fed beneath a sensing head 17 by a roller 38 driven by an electric motor 41 Fig.1 (not shown), and co-operating with an idle roller 22 in the head 17. The sensing head 17 comprises spaced feeler elements 24, 25, 26 (25, 26 not shown in Fig.3) so aligned and arranged that the elements 24, 25 may be bridged by a pencil mark in column 14 to produce an electrical signal to energise an amber warning indicator lamp L1 Fig.4 (not shown), and the elements 25, 26 may be bridged by a pencil mark in column 15 to energize a red indicator lamp (L2) and an oscillator (48) generating an audible alarm by means of a loudspeaker.
Patent GB-886177-A (GB)
Title: Method of preparing carbamoyl-o, o-dialkylphosphorodithioates
IPC: C07F9/165
Filed: 1958-06-25
Abstract: An N - monoalkyl - carbamoylmethyl - O, O - dimethyl phosphorodithioate of the general formula AlkNHCO.CH2SSP(OCH3)2 wherein the alkyl group is methyl, ethyl, n-propyl, i-propyl, or t-butyl, is obtained by forming a reaction mixture containing: (1) an amount of a water-soluble N-alkyl-carbamoylmethyl halide; (2) not more than about a molecular equivalent of a salt of an O,O-dimethylphosphorodithioic acid and a tertiary amine; and (3) at least a sufficient amount of an inert organic water-immiscible solvent to dissolve said halide and said salt, agitating said mixture at a temperature of from room temperature up to about the boiling point of the reaction mixture, whereby the said dithioate product is formed and tertiary amine hydrohalide is precipitated, said solvent being present in sufficient amount to dissolve all the dithioate product, stopping said agitation, removing said precipitated hydrohalide and recovering said product from the residual solution. The tertiary amine salt may be a triethylamine, trimethyl amine, pyridine, quinoline or dimethylaniline salt, the triethylamine salt being preferred. Specified solvents are aromatic hydrocarbons, e.g. benzene, toluene, the xylenes, chlorobenzene, chloroform, and methylene and ethylene dichlorides, and the solvent should preferably boil above the melting point of the product and preferably below about 90 DEG C.-95 DEG C.  The organic solvent solution containing the product may be washed with an aqueous alkaline solution such as sodium carbonate or bicarbonate to remove any unreacted acid and then with a saturated aqueous salt solution to remove any extraneous residual dissolved material and after removing the solvent by evaporation the oily residue may be recrystallised from a suitable solvent, e.g. alcohol, ether, aqueous alcohol, or an alcohol-ether mixture.  The tertiary amine salt may be obtained by dissolving the dithioic acid in a suitable solvent, e.g. benzene and then adding a molar equivalent of the amine.  Examples are given for the production of compounds of the above formula in which Alk is methyl, t-butyl, ethyl, n-propyl, and i-propyl, examples are also given in which the N-monoallyl-, N-mono-n-butyland N-monoisobutyl-carbamoylmethyl-dimethylphosphorodithioates are obtained.  Specifications 663,270 and 791,824 are referred to.
Patent GB-205885-A (GB)
Title: Improvements in grinding machines
IPC: B24B19/00
Filed: 1922-07-25
Abstract: 205,885. Marks, E. C. R., (Bock Bearing Co.). July 25, 1922. Chucks.-In a machine for grinding a spherical or bevelled end-surface on tapered bearing rollers &c. a chuck for holding and rotating the rollers &c. is mounted, in a housing 83, in adjustable bearings which comprise inner split taper sleeves 86, 87 and outer internally tapered sleeves 97 which may be adjusted by nuts 101, 103, on the inner sleeves, and by tapered screw plugs 95. A cap 104 is placed over each plug to exclude dust and to prevent accidental turning. The chuck comprises a sleeve 85 rotatable but not axially movable in the bearings. Slidably mounted in the sleeve, 85 a sleeve 105 having at its forward end an internally tapered head 106 which is pressed on to an axially fixed split collet 109 to grip the work A by means of pivoted arms 120 and a sliding ring 123. Springs 126 and 114<1> release the sleeve. The collet is secured to a bar 113 which is adjustably attached to a cap 114 on the spindle; a dust-excluding cover 116 is placed over the cap. The work is pushed by a rod 175 into the chuck against the action of a spring 128, which acts as an ejector when the chuck is released. Specification 118,857 [Class 60, Grinding or abrading &c.] is referred to.
Patent GB-1431942-A (GB)
Title: Device for transporting and measuring work pieces
IPC: G01B5/02
Filed: 1973-04-30
Abstract: 1431942 Workpiece handling devices M POSSATI [trading as APPARECCHI ELETTRONICI MARPOSS] 30 April 1973 [9 May 1972] 20407/73 Heading B8H Apparatus for the transport and the dimension gauging of a workpiece having a bore comprises an arm (96) which is rotatable by a shaft (98), Fig. 3, (not shown), a workpiece measuring and holding unit 11 being carried by the arm (96) the unit 11 including a plug 76 having fillers 80 which, in a known manner, control corresponding position transducers (not shown) to estimate the bore of a workpiece (81) when the feelers are disposed within the workpiece bore, Fig. 2 (not shown), the unit 11 further including a device for frictionally engaging with the workpiece bore so that when the unit 11 is raised and rotated by the arm (96) the workpiece (81) is raised and rotated along with it. The latter-mentioned device comprises a rod 45 pivotally mounted at 47 for movement between its inoperative position of Fig. 1 and its operative position in Fig. 2 (not shown) in which arm 73 thereof is in engagement with the workpiece bore, such movement of the rod 45 being effected on releasing compressed air from a chamber 47 thereby allowing a compression spring 30 (which in the condition shown in Fig. 1 is compressed) to move a cylindrical body 39 downwardly, a bevel surface 41 of the body 39 which is in engagement with a lobe 43 of the rod 45 causing the rod 45 to rotate in a clockwise direction such that a fin 79 at the end of the arm 73 protrudes through an opening 75 in the plug 76 and engages with the bore, the clockwise rotation of the rod 45 being made against the action of a compression spring 57 which is compressed by means of a pin 50 in engagement with the top of the rod 45. When the workpiece is to be deposited by the unit 11 compressed air is introduced through a duct 20 into the chamber 47 thereby raising a piston 19 and a shaft 22 to which the body 39 is attached, whereupon the rod 45 rotates in an anti-clockwise direction under the action of the compression spring 57 and pin 50. An alternative construction of a workpiece measuring and holding unit for use with cylindrical workpieces which are not bored comprises a cylindrical housing (107) which, together with the pivotally mounted arm (45) forms a fractional holding device, the workpiece being located in a chamber (108) defined by the housing (107) and feelers (110) for engaging the workpiece are disposed in recesses (109) formed on the inside wall of the housing (107), Fig. 4 (not shown).
Patent GB-516087-A (GB)
Title: An improved electric water heater
IPC: F24H1/10
Filed: 1938-07-12
Abstract: 516,087. Electric water heaters. SMITH, D. H. July 12, 1938, No. 20580. [Class 39 (iii)] [Also in Group XIII] In an electric water heater having two water containers 4, 11, one within the other, the inner container 11 is provided with electrodes 10 supported by a porcelain plate 7. The inlet consists of a nozzle 23 directed into a restricted tube 22 providing a pressure enabling the water to enter the container 11. A draining outlet 24 allows the water to flow back into the container 4 when the supply is terminated. In operation, hot water overflows through an aperture and a tube 13 to the outer container 4 where it is withdrawn through the outlet 29. To enable the heating effect to be varied the tube 13 may be adjusted at different heights by means of a wire 15 and clip 16 so that the water in the container 11 is maintained at various levels. In a modification the overflow outlet from the container 11 consists of one of a number of pipes (the others being closed by removable plugs) arranged at different levels. In a further modification water leaves the container 11 through a number of orifices at different levels in the wall, the position and size of the orifices being such that the rate of flow of water is proportional to the rate of heating.
Patent GB-389715-A (GB)
Title: Apparatus for filling opaque and covered containers, particularly those of accumulators
IPC: H01M50/609
Filed: 1932-07-21
Abstract: 389,715. Funnels ; filling bottles. BECK, H., 13, Nachtigallenstrasse, Meiningen, Germany. July 21, 1932, No. 20617. Convention date, Aug. 5, 1931. [Class 125 (ii).] Apparatus for filling with liquid opaque or covered containers, such as accumulators, through a discharge spout comprises a levelindicating tube which is adapted to dip into the liquid in the container, the upper end of the tube being then closed, e.g. by the thumb, to retain in the tube the column of liquid that rises therein. As shown, on a funnel 1 is arranged a tube 2, which may be provided with a movable indicator or scale. The upper end of the tube may be provided with a manometer. The tube may be arranged inside the funnel spout. As shown in Fig. 3, an indicating tube 2 may be fitted to a discharge 'tube 7 leading from a reservoir 9.
Patent GB-516088-A (GB)
Title: Secrecy signalling systems
IPC: H04K1/04
Filed: 1938-07-12
Abstract: 516,088. Secret transmission. STANDARD TELEPHONES & CABLES, Ltd. July 12 1938, No. 20663. Convention date, Aug. 11, 1937. [Class 40 (iv)] [Also in Group XL] In a system in which different messages are sent over the upper and lower sidebands of a carrier, the messages are scrambled and periodically changed from one sideband to the other. If only one message . is being sent, " babble " is fed to the other channel. Two-way transmission is provided and the final modulation is performed in two stages. A schematic arrangement of the system is indicated in Fig. 3. Two channels A, B are each capable of receiving or transmitting, the messages being periodically inverted by the operation of relays such as TIA, TIA<SP>1</SP>. The frequency is shifted through 500, 1250 or 2000 cycles by the operation of a selected one of the appropriate relay group such as TA1, TA2, TA3 and sent out as either an upper or a lower sideband by the energisation of one of the relays as TUI, TLI &c. A typical invertor or frequency shifter is shown in Fig. 5. Four copper oxide rectifiers are connected to form a bridge as shown, the message being connected to terminals 4, 5 and the carrier frequency to terminals 6 and 7. 'The modulation products appear at terminals 8 and 9. If the original band covers say 250- 3000 cycles and the modulation frequency is 3250 cycles, the lower side band, which can be separated by suitable filters, will be 3000-250 cycles and will be an inversion of the original message. The scrambling circuit is indicated in Fig. 4, the relays for the required sequence of changes being energised as cams T1-T6 or R1-R6 are in turn effective. Considering only a transmission message from channel A, the condition of relays TIA, TIA<SP>1</SP> determines whether the message is or is not inverted and then passes through low-pass filter LPF: It enters modulator Mod. TA which is supplied with a frequency of 9500 and the lower side band of the 250-3000 cycle, namely 6500-9250, is passed by filter BPE. The message is then passed to modulator TU or'TL (depending on the operations of TAUL) and supplied with a frequency of 10,000, 10,750, or 11,500 depending on which TS relay is operated. The resulting bands are 750-3500, 1500-4250, and 2250-500 cycles so that a shift of 500, 1250 or 2000 cycles has been made. Band-pass filter BPF passes 750-5000 cycles. 'This scrambled message passes out at J or K, Fig. 6, is modulated and filtered, and recombined, so that the carrier C and bands C + J and C - K are fed to the output channel. This output is twice modulated and filtered, as indicated, before being transmitted by the radio transmitter R.T. Suitable arrangements for receiving and demodulating in stages are described. Specification 366,921 is referred to.
Patent GB-853022-A (GB)
Title: Improvements in and relating to lamp signalling apparatus
Inventor: ALLEN JOHN WALTER
IPC: H04B10/50
Filed: 1956-07-04
Abstract: 853,022. Visible signalling apparatus. ERICSSON TELEPHONES Ltd. July 16, 1957 [July 4, 1956], No. 20751/56. Class 118 (2). [Also in Groups XI, XX, XL (a)] Lamp signalling apparatus includes a housing 1 enclosing a filament lamp 7 and an element 23 of indium antimonide, an ellipsoidal reflector 31 for directing visible light from the lamp 7 on to the element 23 to cause the emission of a beam of infra-red light, and means for signalling by interrupting the generation of the beam. The latter means can comprise a pivoted spring- controlled trigger 15 on which the element 23 is mounted, or the element 23 can be held in a fixed position and a shutter can be provided for substantially preventing visible light from reaching the element 23 when the trigger is in the " off " position. Adjustable screws 25 and 26 are provided to form stops for the trigger 15. The element 23 can be in the form of a solid cylinder, the cylindrical surface 32 and one end face 28 of which are polished to promote internal reflection of the infra-red light generated, and the other end face of which has mounted on it an f-ratio cone channel converter, the surface 33 of which is polished to promote multiple reflection and the end of which is ground to form a lens 30. The diameter of the cylinder 23 can be of the order of 0.01 inches and the length of the order of 0.1 inches. The element 23 and converter 29 can be made in one unit from indium antimonide or the converter 29 can be formed from silicon or antimony trisulphide glass both of which are transparent to infra-red light. The surfaces 28 and 33 can be coated with aluminium. In a modification the element 23 can be in the form of a thin layer on a support transparent to infra-red radiation. The housing 1 comprises two members fastened together by threaded bolts and can be made of a metal casting or a moulding of thermo-setting plastic. Dry cells 3 for energizing the lamp 7 are provided. The infra-red light issues through a conical metal screen 9, lens 10 and a glass window 12, held together by a threaded metal ring 13 and a ring 11 of natural rubber. The beam of infra-red light can be given a characteristic cross-sectional shape by a mask superimposed on the glass window 12. The lamp may be provided with sights for directing the beam towards a receiving station. According to the Provisional Specification the lamp 7 is provided with an upper concave reflector directing light downwardly on to a pivotallymounted mirror under the control of a slidably mounted trigger, light from the mirror passing to a lens system directing the light on to an element of indium antimonide in the form of a thin layer on a sheet of glass within a shroud. Sights are provided for directing the infrared beam on to a receiver such as a fluorescent screen. The layer of indium antimonide can have a thickness of approximately 0.005 inches and a mask can be superimposed on the supporting glass plate. A shutter can replace the mirror.
Patent GB-651591-A (GB)
Title: Improvements in roller blinds
IPC: E06B9/165
Filed: 1948-08-06
Abstract: 651,591. Hinges. COUSAU, C. A. Aug. 6, 1948, No. 20833. [Class 65(ii)] [Also in Group X] A hinge which pivotally connects adjacent slats a of a roller blind (see Group X), comprises complementary hinge members b, c including a base portion 11, 13 to be positioned within a slat, hinging eyes 9, 10 extending through slots 3, 4 in the slats, and pin means 6 which passes through the hinging eyes to connect the members b, c. One end 6<1> of the hinge pin may be bent crank-like to engage in a perforation 5 near the slot 4 which holds the member c to assure the hinging position. Blade b has an intermediate portion 12 which coincides for sliding movement with slot 3. Rotation takes place about the pins 6 which are spaced from the parts 11, and the slats are therefore permitted to move and to slide over the full length of the portions 12 to assume the spaced apart position shown in Fig. 9, or to assume the closed position of Fig. 10, where the tongues 1 mate with the grooves 2. The blades b, c may be made from aluminium sheet &c. by bending the cut sheet to the final shape.
Patent GB-1114090-A (GB)
Title: Improvements in or relating to welding and cutting apparatus
IPC: F23D14/46
Filed: 1967-05-05
Abstract: 1,114,090. Blowpipe burners. R. M. G. LANGER and H. M. N. C. BODOT. 5 May, 1967 [28 May, 1966], No. 20941/67. Heading F4T. A welding and cutting blowpipe comprises an outer body 1 abutting a collar 2 1  of a mixer body 2 and secured by a nut 3, a non-return distributer sleeve 4 biased against the rear of the mixer by a spring 6 and an injector 10 displaceable relative to sleeve 4 by means of a hand wheel 11, a needle 16 being displaceable in the injector 10 by means of a knob 20. Fuel enters through a duct 22 and annular gap 23 between parts 4, 10 and combustion supporting medium such as oxygen is fed through a duct 14 and mixes with the fuel in chamber 24. When it is desired to use the blowpipe for cutting a valve member 25 is pushed in to allow a jet of oxygen to flow through aligned ducts 28 1 , 28 2  parallel with the blowpipe axis. If a blowback occurs the shock wave causes sleeve 4 to move back against the spring 6 and interrupt the fuel supply.
Patent GB-479196-A (GB)
Title: Improvements relating to driving means for dynamos or other auxiliary apparatus on vehicles
IPC: B61D43/00
Filed: 1936-07-29
Abstract: 479,196. Utilizing movements of vehicles. MORRIS, N. H. July 29, 1936, No. 20978. [Class 103 (iii)] [Also in Group XXXV] A dynamo or other auxiliary apparatus on a railway vehicle is driven by means of V- grooved pulleys mounted respectively on a bogie-axle or vehicle-wheel and the shaft of the apparatus pivotally suspended from the bogie headstock, and connected by multiple endless V-belts or ropes provided with spring tensioning means acting between the bogie and the auxiliary apparatus. As shown, a heating alternator 25 on a railway coach is pivotally suspended by lugs 26 from a pin 27 mounted between cross-pieces 28 extending between spaced members 29 constituting the bogie headstock 30 and is driven bv endless V-belts 1 which directly connect a pulley 2 on the bogie-axle 3 with a pulley 4 on the alternator-shaft 5. The pulley 4, for example of mild steel, consists of a hub-part 6, Fig. 5, keyed to the shaft 5 and connected by a web 11 to a rim-part 9 having belt-grooves 10, each groove being formed with conical sides, a rounded crest 12 and rounded bottom. The cast-iron pulley 2, Fig. 4, is formed in halves each consisting of a web-part 14 integral with a grooved rim-part 15 and recessed to engage a flange 19 on a bush 20 which extends outwardly from the pulley over the shaft 3 and has a further shaped flange riveted to the adjacent vehicle-wheel 23, the axle being able to deflect freely in the pulley. The bottoms of the grooves 16 on the rim 15 are flat and to facilitate feeding of each belt into and out of the grooves the radii at the crests intersect in a line 17. In order to tension the belts, the alternator is urged away from the axle 3 by a compression spring 31 acting bstween a bracket 32 on the alternator and an adjustable abutment 33 on a screwed rod 34 which is fixed at one end to a bracket 35 on the bogie 30 and passes freely at its other end through the bracket 32. Safety loops 37 secured to the headstock 29 encircle the alternator with sufficient clearance to allow the alternator to swing freely within the necessary limits. A two-piece galvanized, sheet-metal casing 40 mounted by means of brackets 42 and parts 43 fixed to the bogie frame protects the belts against damage, theft &c., the axle 3 and shaft 5 passing respectively, with clearance, through holes 44 and an elongated slot 45 in the casing which is provided with a hinged inspection flap. Hooks (not shown) may be secured inside the casing upon which the belts, loosely looped around the axle 3, may be suspended when heating current is not required. A number of spare belts may be suspended similarly. Specification 383,355 is referred to.