baber/WOPTO huggingface dataset:
Patent GB-444884-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1934-08-27
Abstract: 444,884. Exchange systems. FRIEDLAENDER, A., 6, Rue Chauveau-Lagarde, Paris. Aug. 27, 1934, No. 24675. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 27, 1935.] [Class 40 (iv)] Arrangements are described whereby a subscriber engaged in a call is notified by a characteristic tone applied over an operator's key or automatically that he is wanted in a further call. As shown in Fig. 2, the cord circuit includes a pair of keys 9, 10 by means of which tone from a source 7 may be sent to either party in the existing call. Fig. 5 shows the " called " end of the cord used in setting up the further call, a through connection being completed by sleeve relay 33 when key 51 is operated. The operator tests the wanted line by touching the ring of the jack with the tip 38 of the plug in the usual manner. Operation of key 45, 46 connects tone from a source 52 to the engaged party and to the calling party. In Fig. 7, the sleeve B of the plug is connected to sleeve relay 56, resistance 57 and a sensitive relay 60. If the wanted line is idle, relay 56 pulls up and short-circuits relay 60, but if it is engaged, relay 60 pulls up, since the current is insufficient to operate 56, and connects tone from a source 61 to the engaged party and to the calling party. The last arrangement is applicable to automatic exchange systems. Reference has been directed by the Comptroller to Specifications 1157/14, 307,389, 335,278, [all in Class 40 (iv)], and 364,740.
Patent GB-833582-A (GB)
Title: New steroid esters and the preparation thereof
IPC: C07J41/00
Filed: 1957-08-06
Abstract: The invention comprises 3,17-esters of oestradiol, 17-esters of testosterone and 17-esters of 19-nor-testosterone, and 21-esters of cortisone, hydrocortisone, prednisone and prednisolone (in each case the ester group or groups are derived from glycine, alanine and phenylalanine), and acid addition salts of said esters.  The esterification is carried out with the aminocarboxylic acid which may be in one of its optically active forms or as a racenate, the amino group being protected, e.g. by means of the carbobenzoxy group.  Thus the esterification may be carried out with an N-carbobenzoxy amino-acid in the presence of a dehydrating agent. e.g. ethoxyacetylene, or by use of the corresponding acid anhydride or acid chloride, preferably in the presence of an organic base, e.g. a tertiary base such as pyridine or quinoline.  After the esterification the carbobenzoxy group from the resulting N-carbobenzoxy amino-acid ester of the above steroid compounds can be split off by catalytic reduction or by treatment with a hydrohalogenic acid such as hydrobromic acid, in which case the corresponding hydrohalide salt is formed.  The process may be modified in that any oxo groups in the reactants may be protected during esterification such as by ketalization, e.g. to form an ethylenedioxy group.  A number of detailed examples are given.
Patent GB-705217-A (GB)
Title: Vacuum insulated containers and process for evacuating same
IPC: F17C13/08
Filed: 1951-10-23
Abstract: 705,217. Heat insulation. UNION CARBIDE & CARBON CORPORATION. Oct. 23, 1951 [Nov. 16, 1950]. No. 24778/51. Class 64(2) Gas or vapour released by powder filling an evacuated insulation space between the inner and outer walls 10, 11 of a doublewalled liquefied-gas container is adsorbed and retained by silica gel or other adsorbent material 19 in a chamber 18 which is cooled by the liquefied gas 22 and communicates with the evacuated space through a passage 24, 29 containing a dust filter 25. The adsorbed gas or vapour is driven off at intervals by warming the adsorbing material and connecting the passage 29 to a vacuum pump through a pipe 32 and valves 34. In the form shown, the adsorbent material is warmed when the liquefied gas is removed from the container 10. In a modification, the container 18 is at the bottom of the inner vessel 10, is insulated by a lining of insulating material, e.g. asbestos or glass wool, or by a gas space, and contains an electric heater for driving off the adsorbed gas and .vapour at intervals. In this form, the passage 29 contains a bellows portion to allow for relative expansion of the two casings, and is connected to the dome 24 containing the filter 25 by an external pipe. The powder in the insulating space may be magnesium carbonate, perlite or diatomacecus earth. The dust filter 25 may comprise a filtering membrane formed to have radially extending flutes around a space which is closed at the top and communicates with the passage 29. In another form the container 18 is outside, but in contact with, the inner vessel 10.
Patent GB-830353-A (GB)
Title: Improved filament testing appliance
Inventor: HALL FRANCIS JAMES ADDINGTON
IPC: G01R31/25
Filed: 1956-08-14
Abstract: 830,353. Electric tests. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 15, 1957 [Aug. 14, 1956], No. 24823/56. Class 37. Lamps or valve filaments 6 are tested by a low-voltage supply derived from the secondary of a transformer 2, the primary of which is fed from the mains. A broken filament means that relay 9 is not operated and a lamp 7 fed from the supply through the relay contacts does not light. Lamp 13 indicates that the low-tension circuit is live and a buzzer or neon lamp across the filament terminals may be used to indicate if hightension is present in the low-tension circuit. The relay and lamp indicating arrangement may be replaced by a galvanometer in series with the filament under test and carrying an indicating flag.
Patent GB-1334023-A (GB)
Title: Safety closure device
IPC: B65D50/04
Filed: 1971-04-19
Abstract: 1334023 Safety closures EYELET SPECIALTY CO 19 April 1971 [22 July 1970] 24886/71 Heading B8T A safety closure, e.g. of resilient plastics material, has an inner member 16, having an internal thread 22 engaging with the external thread 15 on the neck 13 of the bottle 11, and an outer member 17 which is able to move axially relative to the member 16 and having resiliently deformable downward projections 26. In the absence of axial stress, the resilience of projections 26 causes the two members to have the configuration shown, in which relative rotation of the two members 16 and 17 is possible, thus preventing removal of the cap. If the outer member 17 is depressed, the projections deform radially outwardly by camming engagement with the sloping surface 27 of the inner member 16, thus bringing into engagement the teeth 29 on the member 16 and the teeth 30 on member 17. Unscrewing torque can then be transmitted to the inner member and the cap can be removed. Optionally, ratchet teeth may be provided on the inner member, Fig. 5 (not shown), whereby the cap may be screwed on by the action of abutment elements (37) on the outer member 17, upon the clockwise rotation of the outer member 17. Escapement occurs upon anticlockwise rotation of member 17, which must be depressed as above to unscrew the cap.
Patent GB-460457-A (GB)
Title: Improvements in or relating to burners for heavy oil fuel
IPC: F23D5/00
Filed: 1935-09-06
Abstract: 460,457. Liquid - fuel burners. MONTIGY, G. DE M. DE. Sept. 6, 1935, No. 24916. Convention date, Oct. 8, 1934. [Class 75 (i)] A burner for use in domestic and like stoves comprises an annular cast iron body 2 fitting in the filling opening of the upper cover plate 1 of the stove, a ring 5 resting on a flange 4 in the body 2, a cast iron combustion cap consisting of curved fins 7 and a domed head 6 supported by the ring 5, and a copper screen 10 supported by arms 9 resting on the ring 5. Liquid fuel such as mazut is fed in drops from a reservoir 14 on to the screen 10 where it becomes partially pulverized. The pulverized fuel passes through apertures 11, 12 in the screen on to the dome 6 where it spreads and becomes vaporized by the heat of the flame which is drawn downwards into the stove by the natural air draught. The openings in the grate are closed up or covered with a plate. Initial heating of the burners and ignition is effected by means of a spirit torch.
Patent GB-243135-A (GB)
Title: Improvements in means for actuating pumps and the like
IPC: F04B47/02
Filed: 1924-10-20
Abstract: 243,135. Owens, F. R. Oct. 20,1924. Rope - actuated pumps; counterbalances. - Means for actuating pumps &c. comprise a casing containing a reciprocating member and endless travelling members, pawls on the former engaging lugs on the latter, and means for tripping the pawls at the end of each stroke. A plate 10 has recessed bosses 11 at its corners which engage hollow guide rods 9, and is connected by rods 25 to a bar 26 which is connected by rods 27 within the tubes 9 to another cross-bar connected to the pump plunger rod. One of the lugs 16 on an endless chain 8 engages a pawl 15 on a rock shaft 14 carried by the plate. On completion of the down-strode a stop 24 pushes up a rod 17 which slides in the bosses 11 and has secured to it a block 21a which trips the pawl 15 by actuating the shaft 14 through links 21, 22, 23 and a bellcrank lever 21 pivoted on the plate and by moving the bell-crank lever beyond its dead-centre. A similar arrangement for effecting the up-stroke is on the other side of the plate. A weight hanging over a sprocket by a chain attached to the bar 26 assists in the lifting movement. The chains may be driven by a pulley or hand wheel on the lower shaft 3 or by gearing on the upper shaft as shown in Fig. 7. For adjusting the chains a threaded extension 42 on the bracket 6<1> engages a nut 43 which is looked by a nut 45 on the boss 46 of the casing 1.
Patent GB-753106-A (GB)
Title: Improvements in and relating to hose- or cable-carrying winches
IPC: B64D5/00
Filed: 1954-08-26
Abstract: 753,106. Governor driving mechanism. FLIGHT REFUELLING, Ltd., MACGREGOR, P. S., and GOODLIFFE, A. W. Aug. 26, 1954, No. 25014/54. Class 57 [Also in Groups XXX and XXXVII] The speed limiting device may (Fig. 4) be constituted by pivoted weights 42a driven from the winch through sprocket 40, pin wheel 39 and unidirectional roller clutch 43, the toes of said weights depress-. ing cap 45 when the reel pays out at excessive speed so as to actuate switch 34 and thus causing the reel to be arrested. Said device may also be constituted (Fig. 6) by an eddy current disc 50 driven by the reel, the disc rotating between fixed poles 51 and mounted magnets 52, the latter being carried by rotatable yoke 54 which, when the reel pays out at excessive speed, is displaced against the resistance of a spring to actuate a switch and, again, to cause the reel to be arrested. Specification 727,065 [Group XXX] is referred to.
Patent GB-1110597-A (GB)
Title: Improvements in or relating to elastic annular permanent magnets
IPC: H01F41/02
Filed: 1965-05-27
Abstract: 1,110,597. Magnetic structures. S. A. TSATURJAN, E. I. ROGOZHINA, G.P. GOLITSOVA, and O. N. ULITINA. 27 May, 1965, No. 25015/65. Heading H1H. To make elastic annular permanent magnets, barium ferrite powder is mixed with uncured rubber binder and this is rolled to form a sheet in which the powder particles are orientated relative to the sheet surfaces. Rectangular blanks 1 cut from the sheet are shaped into cylinders in a mould and then cured. The cylinders are sliced into rings which may be machined to provide desired cross-sectional shapes (Fig. 4, not shown), and are magnetized radially, i.e. in the preferred direction of the particles.
Patent GB-164271-A (GB)
Title: Adjustable propeller
IPC: B64C11/34
Filed: 1920-08-31
Abstract: 164,271. Boerner, A. Aug. 31, 1920. Screw propellers.-Relates to screw propellers in which the blades are adjusted by a combined axial and rotary motion and consists in pivotally attaching the blade to the strap of an eccentric the adjusting lever of which is spring controlled. The blades 1 have sleeves 2 which are a free fit in the boss sockets 4, and each has a transverse pin 5 which takes into inclined slots 6 in the boss sockets. Pivotally attached at 10 to the blade is an eccentric strap 11 which surrounds an eccentric 12 on a shaft 13 which also has levers 15, the inner ends of which have rollers 21 butting against a sliding member 22. As the speed of the propeller exceeds a predetermined amount, the centrifugal force on the blades causes them to move out and to alter in pitch until the equilibrium is established by the spring 18. An air cushion which is capable of regulation may be used in place of the helical spring.
Patent GB-425177-A (GB)
Title: Improvements in and relating to signalling systems, such for example as television systems
IPC: H04N5/16
Filed: 1933-09-11
Abstract: 425,177. Television. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, Middlesex, BROWNE, C. O., 29, Monk's Drive, West Acton, London, and HARDWICK, J., 66, Drayton Gardens, West Drayton, Middlesex. Sept. 11, 1933, No. 25159. [Class 40 (iii)] In a television system having re-insertion of low frequency components, the attenuation of the low frequencies at the reinsertion point, due e.g. to imperfect rectification, or after reinsertion, due e.g. to imperfect regulation of the high tension source, is compensated by decreasing the amplitude of the high frequencies relative to that of the low frequencies. A circuit 12, 13, 10, Fig. 1, in the input circuit to a modulator favours the low frequencies and compensates for imperfect regulation of the anode source of valve 1. The resistance 10 may be in series with an inductance and in parallel with a further resistance, the condenser being removed, Fig. 5, (not shown) ; the condenser may be replaced by a rejector circuit, Fig. 6, (not shown), and the resistance 13 and condenser 12 may be shunted by a further resistance. Compensation may be similarly made in the anode circuit of the modulator, Figs. 8, 9, 10, (not shown). In a modification, the uncorrected signal across resistance 14 is fed to two paths 15, 16, one containing a reinserting device 34, 19, 20, and the compensating circuit 10, 12, 13 of Fig. 1. The two paths are combined after amplification and adjustment of the compensation may be made at the potentiometer 14. The path 15 may also contain a reinserting device. Specification 422,906 is referred to.
Patent GB-1454249-A (GB)
Title: Process for preparing 2-keto-l-gulonic acid
IPC: C12P7/58
Filed: 1975-06-12
Abstract: 1454249 2-Keto-L-gulonic acid SHIONOGI & CO Ltd 12 June 1975 [20 Sept 1974] 25255/75 Heading C2C 2-Keton-L-gulonic acid or salt is produced by fermentation of D-glucose by (a) a microorganism of genera Acetobacter, Acetomonas or Gluconobacter or mutant or enzymatic product thereof to produce 2,5-diketo-D-gluconic acid and (b) a microorganism of genera Brevibacterium or Corynebacterium or mutant or enzymatic product thereof capable of converting 2,5 - diketo - D - gulonic acid into 2 - keto - L- gulonic acid, in which the organisms and two products exist together in at least part of the process to produce the final product. The microorganisms may coexist in a mixed culture system so that 2-keto-D-gulonic acid may be utilized by organism (a) to produce 2,5-diketo-D-gluconic acid. Examples describe the use of (a) Acetomonas albosesamae, Acetobacter melanogenum, and Gluconobacter rubigenosus and (b) Brevibacterium ketosoreductum, nov. sp, sp, testaceum and four Corynebacterium sp strains. The products may be used in the synthesis of L-ascorbic acid.
Patent GB-706307-A (GB)
Title: Partitioning elements for receptacles such as filing cabinet drawers
IPC: B42F17/02
Filed: 1952-10-09
Abstract: 706,307. Filing papers. VALLET E. Oct. 9, 1952 [Oct. 12, 1951], No. 25284/52. Class 146(1) A receptacle is divided into compartments for filing papers by a device comprising a resiliently extensible and bendable arm connected by its ends between the front and rear walls and lying in a place normal to the walls and the base, and strainer means connected between an intermediate point of the arm and a point of the base in the same plane, the length of the strainer means being such that the arm is bent towards the base. The receptacle, shown in Fig. 3 in dotted line and lying on its side, has coupling bars 19, 20, 21 on its rear, base and front walls respectively and letters or the like 25 are filed between the compartmenting devices in which the arm is formed by two rods 22, 23 having hooks 3, 4 at their outer ends to hook over the bars 19, 21 and are connected at their inner ends by a tension spring 13 secured through holes in the ends of the rods. A strainer link 24 is similarly secured to the spring 13 and has a hook 26 to engage the bar 20. In a modification shown in Fig. 2, two strainer links 15. 16 are secured to a coupling bar 18 on the base parallel to the arm.
Patent GB-899654-A (GB)
Title: Improvements relating to the refining of gasoline
IPC: C10G45/06
Filed: 1958-07-25
Abstract: The tendency of a gasoline containing unsaturated hydrocarbons to form gum is reduced by hydrogenating the gasoline (without hydrogenating the mono-olefins and aromatics therein to such an extent that the research octane number of the final product, with 1,5 ml. tetraethyl lead/ Imperial gallon, is more than one number below the research octane number of the feedstock with 1,5 ml. tetraethyl lead-Imperial gallon) and re-running the hydro/generated product at a temperature not exceeding 250 DEG C. to remove a small proportion of bottoms formed during the hydrogenation and boiling above the desired final boiling point of the gasoline.  The hydrogenation may be conducted in the presence of a supported catalyst containing nickel. In the examples, gasoline obtained by the steam-cracking of a petroleum fraction is hydrogenated in the presence of a nickel catalyst supported on alumina or chalk and the hydrogenated product is re-run. Specifications 848,232 and 899,652 also are referred to.
Patent GB-1367974-A (GB)
Title: Oil burner
IPC: F23D11/00
Filed: 1972-05-31
Abstract: 1367974 Gun-type oil burners TEXACO DEVELOPMENT CORP 31 May 1972 25376/72 Heading F4T [Also in Division F1] A gun type oil burner comprises a blast tube 10 housing a fuel atomizing spray nozzle, supplied with fuel by an oil pump (20), Figs. 1, 3 (not shown), a squirrel cage type fan (16), 26, on a shaft 17 driven by a motor (18) for supplying air via a plenum chamber 14 to the tube 10, an air inlet chamber 34 coaxial with shaft 17 and having a circular lateral opening 43 leading to the fan, fan noise being suppressed by a substantially semicircular plate 42 covering approximately half of opening 43 thereby to divert fan sound waves into the half of chamber 34 adjacent the uncovered half of opening 43, and there being a lining of sound absorbing material 52 on the semi-cylindrical section of the inner wall of chamber 34 adjacent the uncovered half of opening 43. The lining 52 may be made of asbestos in the form of an initially flat layer having a corrugated layer on one side and a layer of aluminium foil on the other side, the foil-covered side being cemented to the internal surface of chamber 34. Air enters chamber 34 via apertures in the cylindrical wall thereof, the effective opening of which apertures is adjustable by means of a band 36 having slots 38 and a fastener 40.
Patent GB-1038356-A (GB)
Title: Rail track arrangement
IPC: D06C3/02
Filed: 1964-06-19
Abstract: 1,038,356. Stretching. MARSHALL & WILLIAMS CORPORATION. June 19, 1964 [Feb. 3, 1964], No. 25400/64. Heading B3E. [Also in Divisions B5 and D1] A rail track arrangement for a tentering machine comprises two oppositely disposed rail track positions each comprising (a) a first main rail section 81, (b) a further main rail section 82, (c) means 40B, Fig. 4 (not shown), joined to the section 81 to move it transversely, (d) means 40C, Fig. 6 (not shown), joined to the section 82 to carry it transversely, (e) a comparatively short rail section, or a serial group D of comparatively short rail sections 106, 107, 108 pivotally joined to one another, pivotally jointed to the section 81 and further pivotally jointed to the section 82, and (f) resilient means 166 . . . 173, Fig. 3 (not shown), interposed (i) between the section 81 and the short rail section or an endmost section 106 of the group D, (ii) between the short rail section or the other endmost section 108 of the group D and the section 82, and (iii) between the individual sections 106, 107, 108 if the group D is provided. In the embodiment described, saddles (not shown) are mounted one on each right hand screw-thread 37, 37A, 37B, 37E, 37F and one on each left-hand screw-thread 38, 38A, 38B, 38E, 38F on shafts 21, 21A, 21B, 21E, 21F to slide on cross-members 17, 17A, 17B, 17E, 17F when hand wheels 22, 22A, 22B, 22E, 22F are rotated. Saddles having rollers thereon are also provided to run freely on cross-members 17C, 17D. Rail sections 70, 71, 72, 73, 80, 81, 82, 83 and groups B, C, D, E of shorter rail sections are provided. The sections 80, 81 are pivoted together by a pintle 64, Fig. 13 (not shown), passing through apertures in tongues 60, 62 and which engages in a block 39A on the saddle 40A. The sections 70, 71 are similarly pivoted together. Considering the group D, Fig. 6 (not shown), the sections 81, 106, 107, 108, 82 are pivoted together by pintles 130, 135, 140, 145 connecting tongues 100 and 111, 110 and 113, 112 and 115, 114 and 104, respectively. Platforms 116, 120, Figs. 6 and 7 (both not shown), are secured to rails 81, 82, respectively, and are pivoted together by a pivot pin 124 secured to a projection 121 on the platform 120 extending into a slot 117 in the platform 117 in the platform 116. A pin 50B on the platform 116 engages a saddle 40B on the shaft 17B and a pin on the platform 120 engages a saddle 40C on the member 17C. The groups B, C, E are similarly connected. In use, the positioning of the pintles 130, 130B, 145C, 145E by the hand wheels 22B, 22E causes pintles 145, 145B, 130E, 130C to slide automatically the saddles across the members 17C, 17D. The machine may be used to stretch webs of cotton, wool, synthetic fibres, plastic film, aluminium foil or glossy paper. Reference has been directed by the Comptroller to Specification 971,410.
Patent GB-1166348-A (GB)
Title: A Framing Mechanism for a Photographic Film Strip Projector.
Inventor: PRELLETZ EDWARD ROY
IPC: F16D67/02
Filed: 1967-06-01
Abstract: 1,166,348. Stopping in predetermined positions; shoe and detent brakes. BELL & HOWELL CO. 1 June, 1967 [17 June, 1966], No. 25428/67. Headings F2E and F2L. [Also in Division G2] Filmstrip projector indexing and framing mechanism in a projector wherein a feed sprocket 15 on a shaft 23 is rotated by turning a handle 73, 90 degrees rotation of the sprocket advancing the filmstrip by one frame, includes a spring ball detent indexing device, the normally stationary component 83 of which is rotatably adjustable to permit correct alignment of the filmstrip frames with a projection position. Two spring-loaded balls 99 in a sleeve 91 secured to shaft 23 are engageable in radial V-slots 101 formed at 90 degree intervals in a disc 83 which is normally held stationary by a friction brake comprising shoes 113 mounted on arcuate arms 105 extending from a lug 103 of the disc 83, a leaf spring (115), (Figs. 3, 5, not shown) pressing the shoes against the inner surface of an annular casing wall 55. To adjust the framing, levers 107 on the free ends of arms 105 are nipped together to release the brake and to cause the spring (115), which is secured to the arms 105, to frictionally grip the sleeve 91 so that the disc 83, sleeve 91, shaft 23, and sprocket 15 are rotatable together by means of the levers 107. Shaft 23 is journalled in bearing bushes 33, 41 in side walls 11, 13 of the projector. A bush 31 secured to one end of the shaft carries a pinion 147 meshing a gear-wheel of an auxiliary sprocket assembly (not shown) supported on arms 49 pivoted on the bushes 33, 31.