baber/WOPTO huggingface dataset:
Patent GB-813777-A (GB)
Title: 2-(ª -amino-ethyl)-5-hydroxy-indole and a process for the preparation thereof
Filed: 1957-05-02
Abstract: The invention comprises 2-(b -amino-ethyl)-5-hydroxy-indole having the formula <FORM:0813777/IV (b)/1> salts thereof with mineral acids, the double salt of 2-(b -amino-ethyl)-5-hydroxy-indole with one mol. each of creatinine, sulphuric acid and water, and a process for the preparation of 2-(b -amino - ethyl) - 5 - hydroxy - indole which comprises reducing a 5-benzyloxyindole - 2 - carboxylic acid dialkylamide with an alkali metalearth metal hydride to form a 2-dialkylaminomethyl-5-benzyloxyindole, quaternizing this indole with a lower molecular alkyl halide or dialkyl sulphate, reacting the 2-trialkyl-ammoniomethyl - 5 - benzyloxyindole halide or alkyl sulphate obtained with an alkali metal cyanide, either hydrogenating the 5-benzyloxy-indolyl-2-acetonitrile to the 2-(b -amino-ethyl)-5-benzyloxy indole or reducing it with an alkali metalearth metal hydride, and converting the amino compound by hydrogenolysis with catalytically activated hydrogen into the 2-(b -amino-ethyl)-5-hydroxy-indole.  The dialkylamide may be obtained by reacting the carboxylic acid chloride with dimethylamine, and may be reduced with lithium aluminium hydride. The 5-benzyloxy-2-dialkylaminomethylindole thus obtained may be quaternized with methyl iodide and reacted with sodium or potassium cyanide.  The hydrogenolysis may be effected in alcoholic solution by hydrogen at room temperature in the presence of palladium charcoal. Using hydrogen and a Raney nickel catalyst 5-benzyloxy indolyl - (2) - acetonitrile may be converted directly to the desired 2-(b -amino-ethyl)-5-hydroxy-indole.  The product forms salts with mineral acids and a double salt with 1 mol. each of creatinine, sulphuric acid and water.  The process is illustrated by an example.
Patent GB-719968-A (GB)
Title: Improved clothes airers
IPC: D06F57/08
Filed: 1952-06-03
Abstract: 719,968. Clothes airers. REMPLOY, Ltd., and DUNN, J. June 3, 1953 [June 3, 1952], No. 13987/52. Class 52(5) A clothes airer comprises two frames with a common upright formed from solid sections 6 and sleeves 8 journalled on dowels 10 which fit into sockets in the solid sections 6. Cross-bars 2 of one frame enter sockets in the solid sections 6 and cross-bars 4 on the other frame enter sockets in the sleeves 8.
Patent GB-868269-A (GB)
Title: Improvements in and relating to gas ballast pumps
IPC: F04C27/02
Filed: 1959-04-24
Abstract: 868,269. Rotary pumps. BALZERS AKTIENGESELLSCHAFT FUR HOCHVAKUUMTECHNIK UND DUNNE SCHICHTEN. April 24, 1959 [May 7, 1958], No. 14018/59. Class 110 (2). A multi-stage vacuum pump assembly comprises three pumps 8, 3, 1 arranged in series and provided with gas ballast intake valves 10, 7, 5 disposed as shown. In a modification the unit 3, 10 is dispensed with (see Fig. 1, not shown).
Patent GB-1083877-A (GB)
Title: Improvements in or relating to electrical motors
Inventor: MOLIN URBAN
IPC: H02K17/30
Filed: 1965-04-02
Abstract: 1,083,877. Electric motors. W. DAN BERGMAN A.B. April 2, 1965, No. 14024/65. Heading H2A. In a short-circuited rotor induction motor having at least its stator chamber 2 sealed off from the ambient atmosphere, there are provided means for charging the chamber with a pressurized gas, a pressure-sensitive means within a chamber 5 communicating with the stator chamber and which breaks off an electrical connection between the motor and an external current source in dependence on the gas pressure sinking to a predetermined value, and a charging chamber 22 connected to the motor interior by a passage having a spring- loaded check valve 18 normally closing the passage. The motor is for driving a submerzible pump where fire and explosion hazards are encountered, e.g. petrol plants, gasworks or coal mines, and the charging means may be either an ordinary compressed air line or a cartridge 16 of condensed inert gas, e.g. carbon dioxide the cartridge, e.g. as used in soda syphons being punctured by a spike 17 upon screwing in a threaded plug 19. The pressuresensitive means is a barometric capsule 15 which is set to the predetermined value by an adjustable abutment 14 and operates a spring- biased moving contact bridge 13 connected in the solenoid circuit of the motor contactor 9 the spring rate of the capsule being such that with equal inner and outer pressures the switch 11 will be open. The stator and rotor chambers 2, 20 are mutually sealed by a thin sleeve 3 and O-rings 4.
Patent GB-679285-A (GB)
Title: Improvements in or relating to caravans and like vehicles
IPC: B60P3/32
Filed: 1950-06-06
Abstract: 679,285. Caravan bodies. BLACK, W., and VAUGHAN, F. E. June 1, 1951 [June 6, 1950; Aug. 23, 1950], Nos. 14039/50 and 20808/50. Class 108(i) A caravan has a central bridge portion 44, Fig. 1, and extendable side portions 42, 43, each side portion having a roof, wall, floor and framing. Supporting members 4 on the chassis 1, Figs. 2, 4, each comprise two channel members 4a secured back to back on battens 4b and contain slidable body supporting bearers 5 rigidly connected to side pillars 8. Each bearer 5 comprises side plates separated by spacers and is provided with rollers 6 whereby it may be extended and retracted within bearers 4 by means of systems of shafts 26, 27, sprockets 29, 30, and chains 31, adapted to move brackets 32, 33, attached to the members 5. Opposed pairs of roof members 9 attached to the pillars 8 are slidable on rollers within apertures 10a in fixed longitudinal roof bearers 10, and horizontal side rails 12 also attached to the pillars 8 are connected to end rails 13 slidably located in a similar manner within end pillars 11. Floor portions 22, 23, Fig. 2, are secured to but spaced above the bearers 5 and provide accommodation beneath, when closed as in Fig. 1, for a floor section 24 which may be raised and aligned with the floors 22, 23, when the caravan is expanded, Fig. 3, by ramps 32a, 33a on the brackets 32, 33, which are moved by the sprockets and chain to engage and lift rollers 34. Rollers 40 on brackets 39 attached to bearers 4 support the bearers 5 when extended. Weather proofing rubber rollers 45 in rolling contact with the adjacent outer roof panel sections extend the full length and down the ends of the caravan and are adapted to be rolled outwardly and inwardly between the panels. The inner panelling is likewise formed in three main sections, and struts and ties may be provided where necessary. The shafts of the sprockets may be turned manually or by an electric motor, or cords and pulleys may be used. In other cases the caravan may be adapted for manual extension and contraction. For heavy duty bodies additional cross bearers underneath the normal bearers may be provided. The caravan may have its chassis removed so that the body may be deposited upon supports at a prepared site for use as a temporary dwelling.
Patent GB-1152314-A (GB)
Title: Electrical Connector Socket for Panel Mounting
Inventor: COLDREN DANIEL RUSSELL
IPC: H01R13/115
Filed: 1968-03-23
Abstract: 1,152,314. Surface connector for printed Circuit. AMP Inc. 23 March, 1968, No. 14127/68. Heading H2E. A sheet-metal blank is folded to form a socket of rectangular cross-section having a seam parallel to the axis of the socket, the socket having flanges 18 and portions 24 which are bent towards the centre of the socket so as to form channel-sections together with sides 20 which have flanges 22 formed from them, flanges 18 and 22 gripping opposite sides of a mounting panel (12), and portions 24 being capable of gripping a tab (28). The flanges 18 may connect the socket to a printed circuit (14). The portions 24 taper towards their free ends.
Patent GB-464009-A (GB)
Title: Improvements in or relating to starting gear for internal combustion engines
IPC: F02N99/00
Filed: 1936-05-19
Abstract: 464,009. Turning-gear. BOSCH AKT.- GES., R. May 19, 1936, No. 14132. Convention date, May 20, 1935. [Class 7 (v)] In an engine starter of the flywheel type in which a clutch member 27, displaceable at will into engagement with the engine, is driven through a friction disc clutch 12 brought into full engagement by a nut 10 after the full engagement of the clutch 27, the movement of the nut 10 before the engagement of the clutch 27 is positively prevented by a member 31. As shown, the starter comprises a flywheel 3 mounted on the hollow shaft 1 of an electric motor. A toothed wheel 2 on the shaft 1 drives a planet wheel 5 supported on the outer member 8 of the friction clutch, the inner member 10 of which screws on a rotatable sleeve 11. A pinion 34 on the sleeve 11 drives through two-stage planetary gearing 17, 19, 21 a cup 23 engaging the clutch member 27 through a quick-pitch thread 26. The member 27 is mounted on a rod 28, which is normally held in the position shown by a spring 36. When the flywheel 4 has been set in rotation, and the clutch 27 is driven with low torque through the clutch 12, lightly engaged by springs 38, the rod 28 is moved axially to engage the clutch 27 with the engine. Prior to this operation, the clutch member 10 was prevented from axial movement by a flanged sleeve 31 abutting against a collar 30 on the rod 28. When the clutch 27 is brought into engagement, the clutch member 10 is free to screw along the sleeve 11, bringing the pressure plate 13 and resilient discs 14 against an abutment 37 and tightening the clutch.
Patent GB-199230-A (GB)
Title: Improvements in automatic feeds for drilling machines
IPC: B23B47/18
Filed: 1922-05-19
Abstract: 199,230. Ratcliffe, A. May 19, 1922. Drilling. - A hand drilling-machine having a feed-screw 9 intermittently driven by a cam - operated pawl lever 1 and a feathered ratchet wheel 5, is provided with co-operating stops 7, 10 on the lever 1 and a handwheel 8 or other member rotating as one with the feed'-screw, whereby the feed may be automatically arrested at a predetermined point. Either or both of the stops may be axially adjustable.
Patent GB-350676-A (GB)
Title: Improvements in or relating to the rotatable disc elements of electricity meters
IPC: G01R11/02
Filed: 1930-05-08
Abstract: 350,676. Securing discs on shafts. ARON ELECTRICITY METER, Ltd., HILL, E. W., WHITE, A., and RIORDAN, E. J., 80, Salusbury Road, Kilburn, London. May 8, 1930, No. 14189. [Class 80 (ii).] A rotatable disc element for a meter, for example an alternating current watt-hour meter, is constructed by carrying in a lathe or like machine, a shouldered spindle member 1 with a disc 9 in place thereon adjacent the shoulder 5, rotating the member 1, spinning over the edge 3 to grip the disc against the shoulder, and turning the disc on the spindle member while it is still in the machine. At the end remote from the disc, the member 1 has a hole 11 into which fits a shank 13, on which a worm 19 driving the recording mechanism is formed. The edges 3 may be burred or swaged instead of spun. The Provisional Specification states that a spring ring is sprung into a groove at the outer end of the member 1, surrounding the axial hole therein.
Patent GB-711777-A (GB)
Title: Improvements in alternating current electric motors
IPC: H02K17/16
Filed: 1950-06-07
Abstract: 711,777. A.C. motors. TURNER, Ltd., E. R. & F., and PAYNE, C. F. E. June 7, 1951 [June 7, 1950], No. 14220/50. Class 35 A motor with a three-phase winding has a solid steel rotor 6 with end connections 7. of copper which are firmly connected with the steel rotor either by soldering or by screws 8. Alternatively, the whole surface of the rotor may be plated with copper or other conductive material. The motor may be adapted to be connected to a single-phase supply by changing the stator winding connections and inserting a condenser across one phase winding. The applied voltage can be varied by a series resistance, inductance or transformer. Specifications 10933/89. 234,191, 286,436, [all in Class 35], 344,692 and 456,373 are referred to.
Patent GB-736996-A (GB)
Title: Improvements relating to high frequency electron discharge devices
IPC: H01J23/065
Filed: 1952-06-05
Abstract: 736,996. Velocity-modulated tubes. LELAND STANFORD JUNIOR UNIVERSITY, BOARD OF TRUSTEES OF. June 5, 1952 [June 5, 1951], No. 14221/52. Class 39 (1).  Noise in an electron beam of a high-frequency tube, such as a travelling wave tube or klystron, due to random velocity variations of the electrons on emission, is reduced by abruptly accelerating the beam at a position spaced from the electron source by a distance of the order of one or moie half plasma wavelengths, where the magnitude of the velocity variations of the electrons are a maximum. A theoretical explanation is given. The noise reducing operation may be repeated a number of times either by successive accelerations or preferably by alternate accelerations and decelerations. In a travelling wave tube of the helix type, the helix is disposed so that the total induced noise at the output end thereof is a minimum, the position being such that the input end is a small distance on the gun side from a charge density variation zero; the position may be determined by calculation, or by, experiment using a movable helix. In Fig. 6, the velocity jump gap is between low potential electrode 131 and high potential flange 16. Since the space charge wavelength after crossing the gap is large it is not practical to position the helix at the optimum position for minimum noise output; it is therefore placed as close to the gap as possible and the velocity variation maximum moved a short distance from the gap towards the helix by varying the potential of 11. The optimum electrode positions may be found in an experimental tube in which 3, 15, 16 are movable with respect to the gun electrodes. The helix 3 is of copper coated tungsten. In another form, Fig. 7, the beam is decelerated at gap 18 where the velocity variations are zero and accelerated at gap 17<SP>1</SP> where the velocity variations are maximum. The voltage of electrode 1311 can be varied to adjust the positions of the space charge waves with respect to gaps 17<SP>1</SP>, 18. Electrodes 13<SP>11</SP>, 14 may alternatively be of smaller diameter and not flanged.
Patent GB-1302657-A (GB)
IPC: A23L13/00
Filed: 1971-05-11
Abstract: 1302657 Preparing meat ALFA-LAVAL AB 11 May 1971 [28 May 1970] 14268/71 Heading A2U Pieces of meat are compressed and their volume determined in a vessel 2 after which they are weighed at 3, and the values obtained are fed to a computor 8 which determines the specific gravity and hence the fat content of each piece and controls a sorter 4 such that pieces with a fat content of e.g. 16% or less are initially directed to a vessel 5, pieces with fat content between 16% and 18% to a vessel 6, and pieces with fat content over 18% to a vessel 7. The computor continually evaluates the fat content in each vessel and adjusts the sorting as filling of the vessels proceeds so that the vessels when filled contain meat with respective fat contents of e.g. 16%, 18% and more than 18%. When a vessel is filled the computor gives a signal and indicates its total weight and fat content.
Patent GB-1098343-A (GB)
Title: Production of acenaphthenone
IPC: C07C49/613
Filed: 1965-04-05
Abstract: Acenaphthenone is produced by dehydrogenation of acenaphthenol in the presence of a catalyst, suitably Raney nickel, in an aqueous medium or a hydrocarbon medium whose boiling point is lower than that of the acenaphthenone. The resulting crude acenaphthenone may be oximated with hydroxylamine sulphate or hydrochloride.  Unreacted acenaphthenol is then precipitated together with its contaminants, acenaphthene and acenaphthylene with alcohol or alkali and the precipitate is filtered. The filtrate is acidified to pH 3-4 whereon pure acenaphthenone oxime is precipitated from the filtrate.
Patent GB-282285-A (GB)
Title: Improvements in rail joint oilers
IPC: B61K3/02
Filed: 1927-05-30
Abstract: 282,285. Marks, E. C. R., (Jordan Co.. 0. F.). May 30, 1927. Retractive switches:-The circuit of an electromagnet 46 mounted on a railway vehicle is automatically closed, so as to open a valve 45 contiolling the supply of lubricant on to the joints of the rail 3 through nozzles 47, during the passage of the nozzle over the joints. An arm 8, the length of which is adjustable, is adjustably secured on a shaft 6a journaled in brackets 6 on the frame 1 and carries a stud 14 on which is mounted a roller 29 which engages the inner edge of the rail. A segmental part 15 of the arm 8 carries on its underside an arcuate block 17 of insulating material, the block being arcuately adjustable on the part 15 by means of bolts 21 passing through slots 18, 19. A metallic contact member 23 is secured on the underside of the block 17 bv means of a bolt 25 extending through a slot 20 in the part 15, and is flanked by wear plates 24 of insulating material. Also journaled on the stud 14 is a lever 30, the outer end of which carries a ringer 33 while the inner end carries a spring-pressed contact plug 35. Adjustable stops 38, 43 limit the movement of the lever. One terminal of the magnet 46 is connected to the contact member 23 by a lead 27, while the other terminal is connected to one terminal of a battery, the other terminal of which is earthed. As the vehicle approaches a joint, the finger 33 engages the joint plate 4 and swings the lever 30 about the stud 14, moving the plug 35 from the insulating plate 24 on to the contact plate 23, thus energizing the magnet 46 and opening the valve 45. As the finger 33 leaves the plate 4, a spring 40 returns the lever 30 to its former position, thus breaking the circuit and causing the valve to close.
Patent GB-311942-A (GB)
Title: Improvements in or relating to milling cutters, reamers and the like, and in their manufacture
IPC: B23P15/34
Filed: 1928-05-18
Abstract: 311,942. Icke, S. C., and Sharp, B. May 18, 1928. Milling-cutters; reamers.-In a milling-cutter, reamer, or like tool, the body A is provided with blade-slots a<2> which have radial recesses a<3> adapted to be filled with brazing compound and after the cutters b have been placed in position the whole tool is heated to cause the brazing compound to spread over the cutter faces and to harden the cutters. The cutters mav be located by flanges b<2> and may be provided with slots b<1>. In a modification, the recesses a' mav be in the cutters b instead of in the tool body.
Patent GB-997429-A (GB)
Title: Improvements in or relating to electric heating of metal workpieces
IPC: H05B3/00
Filed: 1962-04-16
Abstract: 997,429. Upsetting. MASCHINENFABRIK HASENCLEVER A.G. April 16, 1962 [May 4, 1961], No. 14654/62. Heading B3H. [Also in Division H5] In a process of heating workpieces in an electric heating machine in which two pairs of electrodes are formed by the ends of the secondary winding 22 of a transformer and a cross-beam 25, a cold workpiece 24 is preheated at the first pair of electrodes while a preheated workpiece 23 at the second pair of electrodes is heated to the temperature required for working, e.g. at which it can be upset, whereupon workpiece 23 is discharged, workpiece 24 is transferred from the first to the second pair of electrodes and a cold workpiece 29 is fed to the first pair of electrodes. The cross-beam 25 constitutes an anvil electrode and can be raised and lowered by a pneumatic device 26. As shown, the workpieces are fed through the heating stations to a discharge shoot 28 by a conveyer belt 27 having insulating sections 30-33 and cut-out portions to enable the workpieces to contact the winding 22. Alternatively, the feeding may be effected by grippers. In an alternative embodiment (Fig. 1, not shown), the transformer, comprising the core 1, primary winding 2 and secondary winding 22, is turned through a right-angle.
Patent GB-1426817-A (GB)
Title: Writing instruments
IPC: B43K24/08
Filed: 1973-03-27
Abstract: 1426817 Retractable writing instruments N A ZEPELL 27 March 1973 [5 April 1972] 14659/73 Heading B6P A retractable writing instrument comprises a writing cartridge 20 which is displaced axially by movement of a pocket clip 40 in and out of the casing of the instrument through a cam means. The clip 40 may be formed with a cam surface 42 which, when the clip is pressed into the casing with the cartridge 20 retracted, urges the cartridge outwardly against a spring 24. Alternatively the cam surface may be formed on a sleeve (98, Fig. 8, not shown) equivalent to the sleeve 30 of Fig. 1 which engages the cartridge 20.
Patent GB-673283-A (GB)
Title: Locking device with springless pawl
IPC: F16D41/12
Filed: 1950-06-13
Abstract: 673,283. Locking rotary elements. ETERNA, Ltd. WATCH FACTORY. June 13, 1950 [June 23, 1949], No. 14750/50. Class 80 (iv). In a mechanism for preventing reverse rotation of a wheel 1, a pawl 5 pivoted on a fixed axle 4 co-operates with two concentric sets of pins on the wheel. The two sets 2a, 2b ... and 3a, 3b ... are relatively staggered so that on clockwise rotation of the wheel the pawl is oscillated, lugs 6, 7 thereon moving into and out of the gaps between the pins, but on anticlockwise movement of the wheel the pins engage one or other of locking surfaces 6a, 7a and rotation is prevented. An arm 10 may be provided to balance the pawl, and the lugs 6, 7 may be spaced along the pawl by a whole multiple of the division between two pins. In a modification, Fig. 2 (not shown), a pawl provided with spaced lugs oscillates within an annular recess in the face of a wheel and co-operates with non-staggered radial projections formed by stamping apertures in the wheel face.
Patent GB-736915-A (GB)
Title: Surround-lighting structures for television receivers
IPC: H04N5/64
Filed: 1953-05-28
Abstract: 736,915. Television. SYLVANIA ELECTRIC PRODUCTS, Inc. May 28, 1953 [May 29, 1952], No. 14939/53. Class 40 (3). The " surround " structure of the picture screen in a television receiver employing a picture tube having a side wall which is translucent near the screen is illuminated by light from the rear side of the tube screen so that the " surround " illumination varies with the average picture brightness. The structure may comprise an apertured member 14 (Figs. 1, 2 and 3) through which the screen end 18 of the picture tube projects so that light from the rear surface of the screen is effective via the translucent portion 22 to illuminate the front surface of 14 which is preferably matt finished in a light colour. Additional low-level constant intensity illumination may also be provided by means of lamps 25 in each lower corner of the cabinet opening 23, an opaque shield 27 masking the lamps from direct view. In a modification of this arrangement the member 14 may be made concave with respect to the front surface thereof (Fig. 6, not shown). In another embodiment the " surround " structure 30, Fig. 5, is formed from laminated glass or moulded plastic, the screen end of the tube being contained in a recess 32 so that light from the rear surface of the screen is transmitted edgewise into the structure and the rear face and outer edges of the structure are silvered to provide reflecting surfaces 40 to reflect this light towards the front surface 38 which is frosted (except for the viewing aperture 36) to form a light diffusing mask. In this embodiment the structure 30 also provides the usual safety glass protection of the picture tube. The embodiment of Fig. 5 may also be modified by making the structure 30 concave with respect to the front surface (Fig. 7, not shown).
Patent GB-569755-A (GB)
Title: An improved means of glazing apertures
IPC: F21S8/00
Filed: 1943-09-11
Abstract: 569,755. Glazing apertures. REVO ELECTRIC CO., Ltd., and REEVES, F. H. Sept. 11, 1943, No. 14949. [Class 20 (iii)] Apertures in casings particularly casings for housing tubular electric lamps are glazed by means of channel members a having an inturned edge a<1> adapted to engage the edge of the opening and framed glass panels c inserted into the channels. Inturried ends a<2> of the channels form stops and the opposite ends a3 may be bent down when the glazed frame is inserted. Dust excluding packing may be provided on the the inner sides of the glazed frame. The glazed frame may be secured by cotter pins in the ends of the channels.