baber/WOPTO huggingface dataset:
Patent GB-730972-A (GB)
Title: Improvements in the manufacture of upholstery nails or the like
Inventor: JONES SIDNEY HERBERT
IPC: B21G5/02
Filed: 1952-06-09
Abstract: 730,972. Forging nails. KENT NAIL WORKS, Ltd. Sept. 9, 1953 [June 9, 1952], No. 14530/52. Class 83 (4). Jointing by forging.-Apparatus for making uphostery nails and drawing pins, having separate heads attached to their shanks, comprises means for advancing a length of wire 3, a parting off tool 1, 2 for severing the wire and forming a point thereon, fingers 9, 10 for engaging the wire adjacent the cut end thereof and urging it axially against an abutment surface 18 so as to upset the end 3a thereof, means 23 for feeding a separate head or cap 20 to the upset end of the wire, and means for displacing the metal of the head to cause it to flow around the upset end of the wire and to secure it thereto. The parting-off tool comprises knife blades 1, 2 carried by reciprocating frames 5, 6 actuated by cams; the blade 1 is rigidly fixed to its frame 5 and the blade 2 is spring-loaded so as to be resiliently displaceable relative to its frame. The gripping fingers 9, 10 are pivoted at 13 to the frames 5, 6 respectively and are biased by springs 17. During the severing of a completed nail from the wire 3, which is fed through a stationary punch 4, the knife blade 1 displaces the blade 2 so that the lower surface 18 of the former blade extends across the cut end of the wire 3. The fingers then engage the wire and force it upwards against the surface to upset its end, each finger having a depression 19 to receive the upset. A pre-formed loose head 20 is fed into a recess 21 in a back punch 23 and is held therein by fingers 24. The knife blades 1, 2 and fingers 9, 10 are then withdrawn and simultaneously the back punch is moved downwardly so that a recess 20a in the head engages the upset end of the wire, after the holding fingers 24 have also been withdrawn, and the wire is then moved downwardly through the stationary punch 4 until the head engages a projection 4a on the stationary punch. The wire is then held against further axial movement and the head is compressed between the projection 4a and the back punch so as to secure the head to the wire. The latter is then advanced and the completed nail severed therefrom.
Patent GB-280123-A (GB)
Title: Improvements in or relating to valve mechanism for controlling the discharge of powdered material or sand from a tank or other receptacle
IPC: B03B5/62
Filed: 1926-07-30
Abstract: 280,123. Andrews, L. July 30, 1926. Actuating-mechanism. - The operation of a valve for discharging powdered material from a tank is controlled automatically by means depending on the accumulation of solid material in the lower part of the tank. In the form shown in Figs. 1 and 2, a tank c is surmounted by a chamber a in which is mounted a slowly rotating bevel gear k carrying cams h, i. A floating spindle n, the lower end of which is guided in a slot in the upper end of the shaft 1 which carries blades 3 in the chamber c<1>, carries rollers adapted to ride on the cams h, i. When there is little resistance to the rotation of the blades 3, the cams h, i, rollers v, spindle n, and blades 3 rotate slowly as a whole; but on accumulation of sufficient particles in the chamber c', the consequent resistance causes the rollers v to move up the cams h, i, thereby raising a lever o and opening the weighted valve d through an adjustable link r. In a modified arrangement, Fig. 3, the cams h, i are carried by a worm wheel 11, and the rollers v are carried by a horizontal shaft 14 fixed to a floating spindle 15 in a hole 16 in the shaft 1, vertical guide bars 19 and guide wheels 20 being provided. The central part of the shaft 14 engages through a ball 22 with an abutment 21 on the valve-operatiug lever o. Specification 280,122 is referred to.
Patent GB-187201-A (GB)
Title: Improvements in filtering apparatus
IPC: B01D33/09
Filed: 1922-05-25
Abstract: 187,201. Vernay, J. B. Oct. 8, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Addition to 178,831. Rotary filters; travelling-band filters.-The distributor disc at the end of the axis of a rotating- drum suction filter, as described in the parent Specification, is provided with an additional connection to the suction pump, and the complete operation has four stages corresponding respectively to filtration, washing, and drying of the cake, and its removal by a scraper. The ends of the pipes h, Fig. 2, which extend through the sleeve k to the different sections of the drum, rotate over four recesses o in a plate p. Three of the recesses are connected by pipes w to chambers in communication with a suction pump. The fourth pipe is open to the atmosphere or connected to an air compressor. A spring 22 bearing against a cap 21 presses a plate 20, in which the pipes ware fixed, and the plate p against a disc m secured at the end of the sleeve k. In a modified apparatus, Fig. 5, an endless filter band d<1> passes round the drum a and a similar smaller drum 28. The cake is dried by passage between a suction chamber 46 and a chamber 48, supplied with hot air or with atmospheric air, which comes into contact with electric heating means. The cake is removed from the band by a scraper 12<1> which may be assisted by compressed air passing outwards through the drum 28. The band passes between a spray pipe 11<1> and a suction chamber 44 and into contact with another scraper 12<2> before returning to the drum a around a tensioning roller 32. The trough v may be provided with a heating coil and with a stirring device 43 pivoted on the shaft of the drum. Beating devices may be placed over the filter drum to give cohesion to the cake. These may be employed in combination with the compression rollers described in the parent Specification.
Patent GB-560912-A (GB)
Title: Process and apparatus for making grooved wood sheets
IPC: B27L5/00
Filed: 1942-10-21
Abstract: 560,912. Grooving wood. WORSCHITZ, F. Oct. 21, 1942, No. 14771. [Classes 145 (i) and 145 (ii)] [Also in Group XXII] A process for making grooved sheets of wood consists in cutting successive layers from a log or block of wood by means of a knife having a sinuous cutting-edge, so that the fibres retain in the finished sheet their original direction. The sheets may be sliced from a block of wood, but preferably a continuous sheet is turned from a log a, Fig. 1, as in the known method of making veneer. The knife C is formed with a series of grooves 1, 2, Fig. 5, on both sides, and the front portion is bevelled at 3 to form the cutting edge. The knife operates in combination with a counterknife d, Fig. 1, which may be a comb-like structure but preferably consists of a number of rollers 5.
Patent GB-814372-A (GB)
Title: Improvements in or relating to windows or the like
Inventor: MOREY FRANCIS JOHN
IPC: B60J10/74
Filed: 1956-05-11
Abstract: 814,372. Windows. BECKETT, LAYCOCK & WATKINSON Ltd. May 3, 1957 [May 11, 1956], No. 14774/56. Class 20(3) [Also in Group XXV] A window comprises a frame 13 having mounted therein a fixed panel 11 and a slidable panel 12, the side edges of the panels which coincide and overlap when the slidable panel 12 is in a fully closed position having fitted thereto extruded metal, U-shaped, weather bars 16, the opposing faces of which each have a longitudinal undercut groove 19 which receives an elastic weather strip 22, and a number of lengthwise ridges 25. Due to the resilience of the strips 22, their outer edges, preferably of reduced section are urged into pawl-like engagement with the corresponding ridges 25 to yieldably retain the slidable panel in its fully closed position and prevent vibration &c. The weather strips 22 are sufficiently pliable to permit the panel to be slid open easily. In half drop window arrangements the strips 22 are made stiff enough to retain the slidable panel in the closed position, against the force of gravity.
Patent GB-887642-A (GB)
Title: Improvements in transistorized magnetic amplifier control for eddy current couplings or clutches
IPC: H02P29/00
Filed: 1960-04-28
Abstract: 887,642. Automatic speed-control systems. EATON MANUFACTURING CO. April 28, 1960 [Oct. 19, 1959], No. 14858/60. Class 38 (4). In an arrangement as disclosed in Specification 804,020, wherein a load is driven from a motor M through an eddy current coupling CL whose winding 1 is variably excited through a transistor amplifier TR from a means G dependent on speed, a magnetic amplifier 6 is interposed between the amplifier TR and the winding 1. A control winding 9 opposes the flux from a bias winding 10 which alone cuts off the magnetic amplifier. In an alternative arrangement (Fig. 2, not shown) the magnetic amplifier output can be selectively switched to a coupling or brake winding, an additional bias winding switched simultaneously being provided for the braking control on the magnetic amplifier. A modification is described which provides torque limitation (Fig. 3, not shown) by measuring the motor M current, which when this exceeds a determined value reduces the rail 1 excitation through an additional control winding on the magnetic amplifier 11, the additional control winding being fed by a transistor circuit or further magnetic amplifier.
Patent GB-1003176-A (GB)
Title: Butyl ethers of hydroxy amino acids and peptides and derivatives thereof
IPC: C07K1/06
Filed: 1962-04-17
Abstract: The invention comprises O-t.-butyl ethers of hydroxy amino acid and peptide t.-butyl esters and corresponding amino-protected compounds; the production of O-t.-butyl ethers of hydroxy amino acids and hydroxy peptides by reacting a hydroxy amino acid or hydroxy peptide or an N-acylate or ester thereof with about a tenfold molar quantity of isobutene for each -OH and, if present, each free -COOH group, in the presence of a catalytic amount of an acid, e.g. in the presence of an inert organic solvent; and the use of this reaction for blocking hydroxy groups in peptide formation.  The O-t.-butyl groups may be removed from the product by treatment with an acid, e.g. anhydrous trifluoroacetic acid, and any other protecting groups may be removed in known manner. Optical activity is maintained.  Examples prepare (1) N-benzyloxycarbonyl-O-t.-butyl L-serine t.-butyl ester, and subsequently O-t.-butyl L-serine t.-butyl ester and its hydrochloride, and L-serine; (2) N-benzyloxycarbonyl-O-t.-butyl L-threonine t.-butyl ester, O-t.-butyl L-threonine t.-butyl ester and its hydrochloride and picrate, and L-threonine; (3) N-benzyloxy carbonyl - O - t. - butyl L - tyrosine t.-butyl ester, O - t. - butyl L - tyrosine t. - butyl ester and its hydrochloride, and L-tyrosine; (4) t.-butyl ester of N-benzyloxycarbonyl L-asparaginyl - O - t. - butyl - L - threonine, t. - butyl ester of L - asparaginyl - O - t. - butyl - L - threonine, and, L - asparaginyl - L - threonine and its picrolonate; (5) N-phthaloyl-L-methionyl - L - asparaginyl - O - t. - butyl - L - threonine t.-butyl ester from N-phthaloyl-L-methionine p-nitrophenyl ester (from N-phthaloyl-L-methionine and p-nitrophenol) and L-aspara ginyl - O - t. - butyl - L - threonine t.- buty-ester; and then N-phthaloyl-L-methionyl-L-asparaginyl - L - threonine and L - methionyl - L - asparaginyl - L - treonine; and (6) O-t.-butyi L-serine t.-butyl ester and its hydrochlorde.-Specification 878,732 is referred to.
Patent GB-311111-A (GB)
Title: Improvements in or relating to metal fences
IPC: E04H17/14
Filed: 1928-05-21
Abstract: 311,111. Hansen, O. May 21, 1928. Rail and vertical bar fencing. -The pales 5 are formed with a central angular groove 6 and lateral semi-circular grooves 7. The grooves terminate below the top 8 of the pales. The rails 1 are made from a strip of metal rolled or pressed to form a central channel 4 and flanges 3. The upper flange is formed with a downwardly bent edge 3a to assist in throwing off rain water.
Patent GB-108776-A (GB)
Title: Improvements in or relating to Gyroscopes.
Inventor: OULIANINE SERGE
IPC: G01C21/18
Filed: 1916-10-20
Abstract: 108,776. Oulianine, S. Oct. 20, 1916. Gyroscopic apparatus.-Relates to that class of apparatus in which the parts are returned to initial position through the production, by an electro-motor, of precession of the gyroscope in the required direction, the motor being started by completion of an electric circuit through contacts carried respectively by the rotor supporting member of the gyroscope and the member in which the rotor-supporting motor is pivoted, the motor exerting a torque upon the latter member. The spindle 6 of the spinning wheel 1, Fig. 1, is supported by a ring 2 with gimbal pivoting-arrangements 4, 5, the three axes being initially perpendicular. Upon the outer ring 3 are mounted sectorshaped contact elements 9, 10 separated by insulating surfaces 7, 8, Fig. 3, upon one of which a metal spring 16 normally rests, but when displacement takes place around the line of pivots 5, so as to move the inner ring 2 from the position I, Fig. 3, to position 11, the spring will bear upon the sector 9, thereby energizing an electro-magnet 14, drawing down a roughened pulley 25, constantly rotated by an independent motor, into engagement with the surface of a disk 27 secured to the outer ring, and producing a processional movement of the gyroscope in the direction calculated to bring it back by reversal of the original externallycaused displacement. A corresponding electromagnet 13 with similar parts operates in the caseof opposite displacements.
Patent GB-454520-A (GB)
Title: Improvements in or relating to water heaters, more particularly electric water heaters
IPC: F24H9/12
Filed: 1935-05-22
Abstract: 454,520. Delivery arrangements for water-heaters. BERRY, H. H., 85, Newman Street, Oxford Street, London. May 22, 1935, No. 14956. [Class 64 (i)] In an electric water heater, the end of the outflow pipe 4 passing into the heater near its upper end is held by a readily unsealed gland 6 in the heater wall or it is secured to the main part 4e of the pipe by a readily disconnected coupling to allow access to the end for cleaning purposes.
Patent GB-909417-A (GB)
Title: Improvements in or relating to securing means for detachably securing an element in a hole in a support
Inventor: BISCHOFF WILLI WALTER
IPC: H02B1/044
Filed: 1959-05-01
Abstract: 909,417. Lamp-holders. SMITH & SONS (ENGLAND) Ltd., S. May 2, 1960 [May 1, 1959], No. 15008/59. Class 38 (1). [Also in Group XXV] A device for securing a lamp-holder in a hole in an instrument case or panel 20 comprises an insulating tube 11 having two diametrically opposed pairs of lugs as at 16, 17 between which are received the stems 23 of blade spring clips. Each clip is longitudinally bowed (see Fig. 3), and may be transversely curved to conform to the circumference of the tube 11; its head 21 has a pressed-up portion 25 forming an abutment. When the assembly is inserted into the hole 8 the panel 20 is secured between the abutments 25 and the tube flange 13, which is resilient in order to accommodate variations in manufacturing dimensions. The inside of the tube 11 has longitudinal flats (see Fig. 4, not shown), to locate the lampholder which is a sliding fit in the tube 11. One of the spring clips may have an extension 27 entering the tube 11 to bear on the metal of the lamp-holder and form an earth connection; the bend 28 is located in a notch 19.
Patent GB-119119-A (GB)
Title: Improvements in Electric Adapters and the like.
Inventor: MCLEAN NEIL
IPC: H01R33/94
Filed: 1917-10-17
Abstract: 119,119. McLean, N. Oct. 17, 1917. Couplings a n d connectors.-In an adapter for connexion to wall sockets, lamp sockets, &c., the bayonet pin and contact members are secured by moulding the insulating body of fibre or other suitable material with the pin and contact members in place in the mould. The contact members A and bayonet pin C are placed in a mould, the members A being held by screws, not shown, screwing into nuts a<4> or into a tapped hole in the contact member. The body B of insulating material such as fibre is then moulded about the pin C and members A. The nuts a<1>, or the holes left by the sacuring screws, serve for reception of terminal screws and washers a<3> which are afterwards added. The members A are preferably of sheet metal bent to provide contact faces a<1> co-operating with the plungers of the lamp socket, &c., and parts a<2>, preferably at right-angles to the parts a<1>, through which the screws a<3> are passed. The body has an extension D with a flange d<1> and slot d<2>, strain being taken off the terminal screws by giving the leads one or two turns about the extension D behind the flange, and bringing them out centrally through the slot d<2>. The body B has screw-threads for reception of a cover E. Speoification 112,240, [Class 75 (iv), Lamps &c., Kinds &c. of], is referred to.
Patent GB-555057-A (GB)
Title: Methods of preparing cellulose esters
IPC: C08B3/08
Filed: 1941-11-25
Abstract: 555,057. Cellulose esters ; preparatory treatment of cellulose. KODAK, Ltd. (Eastman Kodak Co.). Nov. 25, 1941, Nos. 15189/41 and 5787/42. [Class 2 (ii)] - A process for pretreating cellulose with a fatty acid containing from two to four carbon atoms and thereby rendering the cellulose more suitable for esterification, comprises mixing part of the cellulose with the whole or substantially the whole of the fatty acid to be used in the pretreatment in the presence of a small amount of sulphuric acid until the cellulose exhibits partial physical breakdown (crumblibess), and then mixing in the remainder of the cellulose. The amount of cellulose initially treated is such that mixing of the remainder is facilitated. The quantity of fatty acid used may be a quarter to less than twice the total weight of cellulose pretreated. The remainder of the cellulose may be added in one or more portions, if desired together with small amounts of sulphuric acid and fatty acid. The pretreatment is particularly suitable when it is .desired to obtain cellulose propionates, butyrates, aceto-propionates, or aceto-butyrates, containing a high proportion of propionyl or butyryl, e.g. at least 25 per cent. For the esterification there may be used propionic or butyric anhydride or both in a quantity at least three times the weight of fatty acid used in the pre-treatment. The pretreatment may be carried out at raised temperature, e.g. 100‹F. If a high viscosity cellulose ester is required the temperature of esterification should be kept below 100‹F. The cellulose ethers may be used in the production of filaments, films, or moulding compositions. The primary esterification solutions may be treated with water or dilute fatty acid solutions to effect partial hydrolysis of the cellulose esters.
Patent GB-782818-A (GB)
Title: Tantalum electrolytic capacitor
IPC: H01G9/02
Filed: 1955-05-26
Abstract: 782,818. Electrolytic capacitors. MALLORY & CO., Inc., P. R. May 26, 1955 [Nov. 16, 1954], No. 15194/55. Class 37. The electrolyte in an electrolytic capacitor having a tantalum anode and a gold or silver cathode comprises a solution of an alkali chloride or hydrochloric acid to which 10 to 200 grams of ferric chloride per litre have been added as a depolarizer. In addition, ferrous chloride may be added at the rate of 1 to 10 grams per litre. The invention is described as applied to a capacitor comprising a silver casing 11 which may be gold-plated and a sintered tantalum anode 18. The anode 18 is supported upon a polystyrene spacer 16 having three upright extensions 17 which grip the lower end of the anode. The anode comprises a tantalum extension 19 to which lead 20 is attached by welding. A polystyrene spacer 23 is seated on the upper surface of the anode 18 and a sealing member 24 of butyl rubber is arranged immediately above the spacer 23. During manufacture the upper end of the casing 11 is crimped over the sealing member 24, thus causing a portion thereof to be extruded from the upper end of the casing and provide a close seal, both with the casing 11 and the extension 19. The electrolyte comprises a 25 per cent solution of lithium chloride to which ferric and ferrous chlorides have been added. Specifications 671,809 and 782,819 are referred to.
Patent GB-378971-A (GB)
Title: Improvements in or relating to machines for peeling or cleaning vegetables and the like
IPC: A47J17/18
Filed: 1931-05-22
Abstract: 378,971. Peeling and cleaning vegetables. WRIGHT, F. H., 1, Golder's Green Crescent, and LEWIS, E. W., 10, Hatfield House, Great Tichfield Street, both in London. May 22, 1931, No. 15205. [Class 28 (ii).] In a machine for peeling or cleaning vegetables of the type having a container with a rotary abrading bottom disc, the bottom disc is arranged to engage helical splines 23 on the upper end of the shaft 17 whereby the normal rotation of the disc tends to tighten it upon the shaft, and the disc may be removed for cleaning &c. by rotating it in the same direction when the shaft is stationary. The vegetables are supplied to the container 58 through a hopper 15, and discharged when peeled through a door 60 actuated by levers 62, 63. Water is supplied from a pipe 16 and escapes with the parings &c. through an outlet 31, rotary vanes 30 keeping the space below the abrading disc 25 clear. The disc 25 has a tubular shield 29 secured to a depending flange 28, and rests on a hard rubber washer 34 supported by a gland ring 32 which secures the packing washer 33 in position. The water has to pass upwardly into the shield 29 to reach the washer 34, and any water which passes the washers 33, 34 is flung centrifugally from a ring 33a rotating with the shaft. The vanes 30 are secured to the shield 29. The electric motor 37 is coupled by worm gearing 38, 39 to the shaft 17 and, in order to prevent overloading of the machine, the worm wheel 38 has upstanding projections 40 with inclined sides which engage corresponding recesses in a driving ring 41 splined to the shaft 17. The recesses and projections are normally kept in driving engagement by a spring 43, but when overloading occurs the projections ride out of the recesses and give audible warning. Forced lubrication of the bearings 18, 20 is effected by a pump 57a on the lower part of the shaft 17, sucking oil from the sump 19 and delivering it to the central lubricating passage 55 of the shaft. In a modification, the overload slipping clutch is arranged on the end of the motor casing and consists of spring-pressed balls normally engaging recesses in a, driven disc, but riding out from the recesses during overload.