baber/WOPTO huggingface dataset:
Patent GB-569414-A (GB)
Title: Improvements in and relating to resinous condensation products
IPC: C08G14/06
Filed: 1943-02-12
Abstract: Resinous condensation products are produced from an aldehyde, polymeric aldehyde or aldehyde addition product which yields aldehyde under the reaction conditions and a triazinyl carboxyalkyl sulphide of the general formula <FORM:0569414/IV/1> wherein n=1 or 2, and R represents hydrogen or a methyl or ethyl group.  The triazinyl derivative or its aldehyde condensation product may be added to an acid curing phenoplast or aminoplast or to the ingredients thereof. The syrupy resinous products of the mixture may be formed into moulding powders by known techniques. The condensation may be effected under acid, alkaline or neutral conditions at normal or elevated temperatures up to the reflux temperature of the mixture and under a wide variety of pressure conditions.  Suitable aldehydic components of the reaction mixture are formaldehyde or its homologues, acrolein, methacrolein, croton aldehyde, benzaldehyde, furfural, hydroxyaldehyde, or mixtures thereof.  The Specification also includes a list of aldehyde addition products which may be employed and refers in this connection to Specification 1458/42, as open to inspection under Sect. 91.  Examples of acid curing resins referred to above are condensation products of aldehydes with phenols, urea, thiourea, aminotriazines, aminotriazoles, aminodiazines, proteins, aniline, amides of polyboric acids, derivatives and analogues of urea.  In examples: (1) diamino-s-triazinyl carboxy-methylsulphide is condensed with formaldehyde by agitation at room temperature or at the reflux boiling temperature of the reaction mixture.  The product prepared by refluxing was condensed under alkaline conditions with urea and formaldehyde, thiourea and formaldehyde or melamine and formaldehyde to produce a product which, mixed with a -cellulose and zinc stearate yields a moulding composition; (2) diamino-s-triazinyl carboxymethyl sulphide and glycerine reacted with a syrupy phenolic resin obtained by alkaline condensation of phenol and formaldehyde yield a coating resin; (3) diamino-s-triazinyl carboxymethyl sulphide is reacted with an alkaline mixture of urea and formaldehyde, or with the partial alkaline condensation products of phenol and formaldehyde, urea and formaldehyde, melamine and formaldehyde or thiourea and formaldehyde to yield products which, together with a -cellulose and zinc stearate, provide moulding compositions.  Specification 541,024 is referred to.
Patent GB-868006-A (GB)
Title: Improvements in or relating to hardening and other furnaces
Inventor: JESSOP HAROLD
IPC: C21D9/18
Filed: 1959-01-22
Abstract: 868,006. Endless conveyers. JESSOP & SMITH Ltd. Jan. 18, 1960 [Jan. 22, 1959], No. 2339/59. Class 78 (1). [Also in Group XII] Knife &c. blanks 29 are traversed through a horizontal slot 19 in the front wall 21 of a heattreatment furnace 1 (see Group XII) by work carriers on endless chains 12 driven by a motor 5 through chain-and-sprocket gearing 7, 9. The work carriers comprise shanks 17 with heads 24 horizontally adjustable in carrier support stems 14 rigidly screwed to blocks 13 disposed between the chains. Adjacent heads 24 have slots receiving the tangs of knife blanks. The horizontal run of the chains engages a guide plate 11 which is slightly bowed at the entry end so that adjacent heads are initially held slightly apart to receive the tangs and are then tightened as the chains engage the straight part of the guide plate. The blanks can also be held in holes in horizontal tubes or bars.
Patent GB-782755-A (GB)
Title: Power-assisted hydraulic braking apparatus
IPC: B60T13/16
Filed: 1955-01-26
Abstract: 782,755. Hydraulic brakes. TEVES, H., and TEVES, E. A., [trading as TEVES MASCHINENUND ARMATUREN FABRIK KOMM.-GES., A.]. Jan. 26, 1955 [Jan. 26, 1954], No. 2375/55. Class 103 (1). In a power-assisted hydraulic braking apparatus in which a continuously circulating hydraulic braking system is separated from a static hydraulic braking system by means of the master cylinder piston and is adapted to be interrupted in the space behind the piston by means of a manually operable valve member, fluid pressure balance is maintained between the two systems in the inoperative state through an axial passage in the piston, the passage being closed by the valve member in the operation of the apparatus. In the embodiment illustrated, a master cylinder 1 is introduced in a fluid pressure circulating system wherein a pump P draws fluid from container B, through connection 9 disposed above the piston 2 of the master cylinder 1, through passage 11 between the plunger or manually operable valve member 3 and the valve cap 8 into plunger duct 4 and connection 12 back to the container B. Prior to braking a preliminary pressure is produced in space 10 by means of the circulatory system and is transferred via apertures 7 in the valve cap 8, through valve passage 6 into space 13 and thus to the static braking system 14. When the plunger 3 is displaced towards piston 2 the plunger duct 4 and the valve passage 6 are closed by the plunger 3 seating against the valve cap 8, a pressure is built up in space 10 and piston 2 is displaced. Increased pressure on the foot pedal is necessary to maintain the plunger 3 closed against the valve cap 8 and further displacement of the master cylinder piston 2 and plunger 3 increases pressure in the braking system. Specification 752,585 is referred to.
Patent GB-342122-A (GB)
Title: Improvements relating to electric switches, particularly outdoor switches
IPC: H01H31/28
Filed: 1930-01-23
Abstract: 342,122. Air-break switches. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London.- (Assignees of Koppitz, C. G., of Railway and Industrial Engineering Co. ; Greensburg, Pennsylvania, U.S.A.) Jan. 23, 1930, No. 2416. Convention date, Feb. 5, 1929. [Class 38 (v).] Contacts.- Relates to movable contacts with a flattened cross-section for powerful engagement with heavy clip contacts, particularly for use in outdoor switches, wherein the contact pressure is obtained by partially rotating the contact after it has been positioned in the jaws, as in Specification 237,600 [Class 38 (v), Electric switches &c.]. According to the invention, the necessary rotation is given by mounting the flattened contacts 1 on a rocker-arm 2 which is capable of slight angular movement in its tubular carrier-member 3 limited by a pin 5 and slot and controlled by a spring 7. To close the switch, the carrier-member is moved in a horizontal plane until the contact 1 is located between the jaws in an inclined position without, however, touching them. At this stage, a semi-cylindrical bearing-member 11 to which the contact 1 is secured comes into engagement with a stop-member 16 projecting from the fixed mounting 15. Continued movement of the carriermember now swings the rocker-arm, with considerable mechanical advantage, on the carrier-member and cramps the contact into the vertical position. The invention is described also as applied to a double-break switch and to a switch in which in the off position the contact-member engages an earthed contact. Hoods may be arranged over the fixed contacts to protect them from snow and ice.
Patent GB-1480296-A (GB)
Title: Apparatus for investigating the electrostatic properties of powders
IPC: G01R5/28
Filed: 1975-01-20
Abstract: 1480296 Testing electrostatic properties RHONE-POULENC INDUSTRIES 20 Jan 1975 [21 Jan 1974] 2421/75 Heading G1U The measuring head described and claimed in Specification 1303921 for determining the propensity of a solid body to acquire and retain surface charge is provided with an attachment whereby material in powder or particle form may be similarly tested. In the measuring head of Specification 1303921 a rotor 7, Fig. 1, carries a charge inducing electrode 9 and a charge sensing probe 26. As the rotor 7 rotates, these are brought successively above a circular array of holes 2 in a base 1. In use the base 1 is held against the material to be tested and the rotor is rotated. However, whilst this arrangement functions properly for solids, it does not work with powders since the air movements caused by the rotor disturb the powder. According to the invention a device 50 having circular recesses 60 with porous bases 58 is provided, so that if a powder to be tested is placed in a recess, and if the space below the porous bases 58 is maintained at a low-pressure, air is drawn through the mass of powder which, as a consequence remains undisturbed as the rotor rotates above.
Patent GB-1088141-A (GB)
Title: Improvements in or relating to stationery assemblies
IPC: B42D15/00
Filed: 1965-01-20
Abstract: 1,088,141. Manifolding stationery. LAMSON PARAGON Ltd. Jan. 20, 1965 [Jan. 22, 1964; June 30, 1964; Nov. 25, 1964], No. 2479/65. Heading B6A. In an assembly of business forms comprising a number of record sheets provided with coatings of transfer material, one sheet has a coating of hectographic carbon transfer material thereon which forms on the adjacent record sheet a hectographic master copy of data entered on the record sheet assembly. As shown, sheet 1 has a carbon coating 1a on its reverse face, sheet 2 has its reverse face prepared to serve as a hectographic master, sheet 3 has its obverse face coated with hectographic carbon 3a, sheets 4, 5, and 6 have their reverse faces coated with carbon, and sheet 7 has no coating. Data entered on the sheet 1 is reproduced on the sheets 2, 5, 6 and 7, and is also transferred as a mirror image on the reverse face of the sheet 2 by the hectographic carbon on sheet 3. Sheet 2 constitutes a hectographic master, and is used, together with similar masters from other assemblies, to produce in a duplicator, an accurate copy on a summary sheet 8, Fig. 4 (not shown). In Fig. 5 (not shown), various hectographic masters 2A, 2B, 1C &c. are arranged to overlapping sidewise relationship around the printing drum. In a modification, the business forms are arranged in continuous web form, folded into a zig-zag pack, suitably perforated for separation, and having apertures along a marginal zone. These apertures will enable the master sheets to be later filed in overlapping form on a peg board, which can be placed on a duplicator for preparation of a master summary sheet.
Patent GB-1011382-A (GB)
Title: Glass lens blank and method of making the same
IPC: C03B11/12
Filed: 1964-01-21
Abstract: A moulded glass lens blank of substantially equal thickness to the predetermined thickness of a finished lens blank has impressions of image transmitting quality and predetermined curvature forming the first and second major surfaces of the lens blank, formed by moulding, the surface irregularities of the impressions generally deviating less than 0.001 of an inch from a predetermined curvature and produced by a polishing operation which removes a portion of glass not exceeding 0.001 of an inch from the major surfaces.  A measured quantity of glass is moulded between electrically heated mould parts, having the required curvature with a polished finish, the thin moulded lens then being polished and finally passed through an annealing furnace.
Patent GB-400909-A (GB)
Title: A method for the braking of induction motors
IPC: B60L7/16
Filed: 1932-01-28
Abstract: 400,909. Control of A.C. motors. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Jan. 28, 1932, No. 2630. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 31, 1932. [Class 38 (iii).] Regenerative braking.-Non-synchronous and synchronous motors are regeneratively braked by disconnection from the supply and reconnection through "regulating mechanical rectifiers" which are arranged to deliver a lower frequency to motor terminals, and can also be arranged to deliver a higher voltage so as to avoid excessive wattless current.
Patent GB-703588-A (GB)
Title: Improvements in sewing machines
IPC: D05B13/00
Filed: 1952-02-01
Abstract: 703,588. Sewing-machines. UNION SPECIAL MACHINE CO. Feb. 1, 1952 [Feb. 17, 1951], No. 2684/52. Class 112 Loop-stitching.-Driving means for a looper carrier includes a pair of rock members mounted on an axis transverse to that of a main shaft of the machine, an actuating connection from the shaft to one of the rock members, and a readily disconnectable connection between the rock members to cause them to rock in unison while permitting disconnection of the looper carrier for movement to a threading position. In the embodiment shown the looper-carrier 31 of a double-loop-stitch machine is pivotally mounted on a 'member 66, 67 secured on a shaft 68 which is oscillated, to give the needle-avoiding movement of the looper, by an eccentric 77 on the main shaft 15 of the machine. The looper-carrier is connected by a balljointed adjustable link 36 to an arm 39 of a rocker 40 freely mounted on a transverse shaft to which are secured an arm 84 and an arm 83 whereby the shaft is oscillated, to provide the loop-taking movement of the looper, by an eccentric 55 on the main shaft 15; the arm 84 is normally connected to arms 42 of the rocker 40 by a spring-pressed pin 43, but this can be withdrawn to disconnect the drive when it is desired to move the looper to a position for easv threading. The needle-bar is actuated by a lever, in the machine arm, driven by a pitman connected to the lever by a ball ioint and to a strap 18 on a crank of the shaft 15 by a knuckle joint with its axis transverse to the shaft.
Patent GB-777988-A (GB)
Title: Improvements in or relating to methods of making electrical and mechanical connections
Inventor: JACOB DONALD BROOKSBY
IPC: H01R4/62
Filed: 1955-01-28
Abstract: 777,988. Cable and wire terminals ; direct connection between conductors. ALUMINIUM WIRE & CABLE CO., Ltd. Jan. 30, 1956 [Jan. 28, 1955], No. 2720/55. Class 38 (1). In order to prevent electrolytic corrosion in a joint between a brass terminal 1 and an aluminium wire 2, a resilient, e.g. neoprene sealing washer 8 is compressed between the end face 5 of the terminal 1 and the end 11 of sleeve 10 when the latter is crimped over a copper pin 7 used in making the connection. The passage 9 in sleeve 10 may be packed with grease before the wire 2 is inserted and crimped therein. In the embodiment of Fig. 2, a joint between a copper rod 12 and an aluminium wire 13 is shown, the former being provided with an enlargement 19 between which and end face 16 of sleeve 14 the washer is compressed. Two blind bores are provided in the sleeve in this embodiment.
Patent GB-413003-A (GB)
Title: Improvements in electric signs
IPC: G09F13/00
Filed: 1933-01-02
Abstract: 413,003. Moving signs. SHAW, G. S., 27, Knowsley Road, Wallasey, Cheshire. Jan. 2, 1933, No. 2732/34. Divided on 412,289. [Class 3 (i).] An endless display band 4 consisting of gauze to which letters &c. are glued, stitched &c. is continuously or intermittently progressed in a plane parallel to that in which lie the axes of a plurality of tubular lamps 1 disposed parallel to one another behind the band 4. The lamps 1 may be spaced apart if the viewing angle is such that no gap can be seen therebetween. Specification 412,289 is referred to.
Patent GB-1218720-A (GB)
Title: Television, external volume control unit
Inventor: BLACKBURN ANDREW JAMES
IPC: H03G3/04
Filed: 1970-01-20
Abstract: 1,218,720. Radio receiving circuits. A. J. BLACKBURN. 20 Jan., 1970, No. 2776/70. Heading H3Q. In a television set the sound is controlled by an external unit connected in series with the loud-speaker and comprising an on/off switch in conjunction with a series and/or shunt connected resistor. The arrangement may comprise a switch in series with a variable resistor, or a switch with a fixed resistor in parallel. It may further comprise an on/off switch together with a fixed resistance in parallel, connected in series with a variable resistor.
Patent GB-583183-A (GB)
Title: Improvements in or relating to television transmitting tubes or pick-up tubes
IPC: H01J29/43
Filed: 1944-02-15
Abstract: 583,183. Electron image tubes. COMPANIA PARA LA FABRICACION DE CONTADORES Y MATERIAL INDUSTRIAL, and VITEAU, P. Feb. 15, 1944, No. 2787. [Class 39 (i)] In the manufacture of a transparent photosensitive mosaic electrode for a television pickup or transmitting tube, comprising a mica support coated on one side with a sensitized silver mosaic and on the other side with a conductive signal layer, the latter is formed by heating one or more evaporators of platinum or tungsten located between the mica support and the envelope window after all the thermal operations involved in the evacuation of the envelope, activation of the cathode and sensitization of the cathode, have been completed.
Patent GB-579922-A (GB)
Title: Improvements in or relating to controlling cams, more particularly adapted for controlling the fuel pumps of reversible internal-combustion engines
IPC: F01L1/08
Filed: 1942-03-04
Abstract: 579,922. Cams. PEDERSEN, H. V. F. March 4, 1942, No. 2859. Convention date, March 18, 1941. [Class 80 (iii)] [Also in Groups XXVII and XXVIII] Consists in an adjustable cam particularly adapted for controlling fuel pumps or valves in reversible internal-combustion engines, the cams being employed for both directions of running. It comprises two cam parts 1, 2 provided at their ends with interengaging parts 3, 4 of tongue and groove type. The outer surfaces' of these parts are concentric with the cam shaft so that relative adjustment of the parts does not affect the smooth transition from one cam surface 5 or 6 to the other. The complete cam is mounted on a boss 7 keyed to the shaft, the two parts 1 and 2 being clamped by screws 10 engaging holes 8 in the boss and passing through elongated holes 9 in the two parts, each of which has a lateral coned extension 11 engaging a corresponding recess 12 in the boss. The holes 9 are covered by segments 13 over which are placed locking plates 14.
Patent GB-684374-A (GB)
Title: Improvements in and relating to women's underclothing
IPC: A41B9/08
Filed: 1951-02-06
Abstract: 684,374. Undergarments. RUDMAN, H., and RUDMAN, P. July 19, 1951 [Feb. 6, 1951], No. 2859/51. Class 141. Undergarments of the kind having an open crotch normally covered by a detachable crotch piece are characterised by the lower edges d of the garment having at the centre front and back upwardly sloped parts cut on the bias in convex curves d' and reinforced by facings e, the crotch piece g having fastening means such as buttonholes h, h' at the corners to engage buttons f, f<SP>1</SP> on the garment. The crotch piece may be of the same material as the garment or may be made of or lined with waterproof material.
Patent GB-202231-A (GB)
Title: Improvements in or relating to bituminous emulsions and to their use as binding mediums
IPC: C08L95/00
Filed: 1922-05-09
Abstract: 202,231. Mackay, H. A. May 9, 1922. Emulsions, making.-An aqueous emulsion of bitumen of the kind artificially prepared from petroleum, e.g. Mexican asphalt, is prepared by melting the bitumen and adding thereto with agitation first about 2¢-5 per cent of a higher fatty acid, and then a dilute (1-2 per cent) solution of potassium or sodium hydroxide or carbonate at a temperature of 215-225‹ F., the heating and agitation being maintained until emulsification takes place, and the agitation preferably continued during cooling. Unsaturated fatty acids such as oleic acid mav be used. One of the Provisional Specifications states that the fatty acid may be wholly or partly replaced by a resin or a resin oil. The emulsion is preferably diluted with water before use. Specification 202,021 is referred to.
Patent GB-734216-A (GB)
Title: Process for the treatment of ligno-cellulosic fibres
IPC: D21C1/04
Filed: 1953-02-02
Abstract: Fibrous ligno-cellulosic materials such as wood chips, bagasse or straw are treated, prior to alkali digestion, with steam at atmospheric pressure and at a temperature of substantially 100 DEG C., the steam containing sulphur dioxide and the treatment being carried out under such conditions that the quantity of dilute sulphurous acid condensed on the materials is so small, in relation to the amount of the materials, that substantially no flow of such dilute sulphurous acid occurs over the surfaces of the particles of the materials.  The apparatus may consist of an autoclave for discontinuous treatment or of a tall column for continuous treatment. The proportion of sulphur dioxide may be 1-3 per cent, calculated on the dry material treated.  In an example 100 kg. of eucalyptus wood chips (dry weight) containing 15 per cent of water are charged into a pressure cooker provided with a heat-insulating jacket, the air therein is partially exhausted and 2.5 kg. of gaseous sulphur dioxide is injected together with sufficient steam to increase the temperature to 100 DEG  C.  The mass is maintained at 100 DEG  C. for 2-3 hours, during which time the water content of the chips increases to 40-50 per cent but no flow of condensate occurs over the chips. The pressure cooker is exhausted to remove the residual free sulphur dioxide, and the lignosulphonic acid formed during the treatment is neutralized and dissolved by the addition of black liquor from a previous cycle of operations.  The mass is heated to 100 DEG  C., drained and covered with an aqueous solution of caustic soda (110 g. per litre).  Part of the caustic soda may be replaced by sodium sulphide.  The mass is heated to 160-170 DEG  C. for 1.2 hours, drained and washed.  The black liquor thereby obtained is used for the neutralization of the next batch of hydrolized cellulosic material.  The treated pulp may be bleached, e.g. by two or three treatments with chlorine in an acid medium followed by hypochlorite in an alkaline medium.  Examples are given of the similar treatment of bagasse and chopped straw.  The sulphur dioxide may be generated in situ in the cooker, e.g. by charging the cooker with aqueous solutions of sodium bisulphite and sulphuric acid.
Patent GB-1342225-A (GB)
Title: Tool magazine
IPC: G05B19/23
Filed: 1972-01-21
Abstract: 1342225 Tool changers HEIDELBERGER DRUCKMASCHINEN AG 21 Jan 1972 [11 Feb 1971] 3064/72 Heading B3B In a machining centre tool magazine 1 having a tool selecting device 8-10, and a tool changing mechanism 5-7, which exchanges a new tool with a previously used tool and places the used tool in the empty place vacated by the new tool, there is provided an information store 9 in which is contained information carriers 8 in sequence with the tools in the magazine pockets, the selection device interrogating the information carriers 8 and having means 10 to exchange the information carrier characterizing the tool selected at any given time for that relating to the previously used tool. A chain magazine 1 driven by a motor 4 has tool receiving pockets that carry tools to a tool exchange position opposite an intermediate gripper 5 which pushes a selected tool into a pocket 6 to enable a two armed interchanger 7 to exchange tools in a spindle. A drum 9 which rotates once for one complete turn of the chain carries the information carriers 8 in the form of profiled cylinders and a double gripper 10 exchanges the said carriers 8. During a search for a required tool the carriers are read and compared to a programme. The chain can be rotated in either direction to place a tool by the shortest path at the exchange position. Each tool may also have coded information which is read by a checking device 11 at the tool pocket 6 to see if it corresponds with the carrier 8 read in the drum 9.
Patent GB-524473-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B62D65/00
Filed: 1939-01-31
Abstract: 524,473. Making motor vehicle bodies. AMBI-BUDD PRESSWERK GES. Jan. 31, 1939, No. 3219. Convention date, Feb. 2, 1938. Addition to 496,908. [Classes 83 (ii) and 83 (iv)] [Also in Group XXXII] The vehicle body described in the parent Specification is modified by the stainpings, each of which constitutes a side wall and one half of the roof or floor, being formed symmetrically so as to be suitable for both sides of the body, only two pressing operations on the same press being necessary for the production of three body walls.