baber/WOPTO huggingface dataset:
Patent GB-438029-A (GB)
Title: Improvements in or in connection with discs or plates for sound reproduction and/or recording
IPC: G11B3/70
Filed: 1934-03-09
Abstract: A disc or plate for mechanical sound recording and/or reproducing purposes is produced by cutting a hole in a glass sheet and placing the sheet on a support with a central spindle projecting through the hole, the sheet then being cut to circular shape.  After cleaning, the disc so formed is treated with a dilute alkaline water glass solution and allowed to dry.  Gelatine mixed with a water soluble oil, such as sulphonated castor oil, is then poured in the liquid state on to the disc which is supported in a truly horizontal position and is preferably rotated so as to assist the spreading of the gelatine on the disc to form a covering layer of uniform thickness.  After the gelatine has set, the disc is removed from its support and thoroughly dried.  If desired, the gelatine may be hardened by rubbing or treating its surface with formaldehyde.ALSO:A disc or plate for mechanical sound recording and/or reproducing purposes comprises a glass foundation or carrier with one or both of its faces covered with gelatine softened by the addition of water soluble oil, such as sulphonated castor oil.
Patent GB-1069422-A (GB)
Title: Improvements relating to wheeled golf-bag carriers and the like
IPC: B62B1/04
Filed: 1963-02-25
Abstract: 1,069,422. Golf trolleys. DUNLOP RUBBER CO. Ltd., and T. G. FRY. Feb. 7, 1964 [Feb. 25, 1963], No. 7550/63. Heading B7B. The sleeve 6 to which the bag-carrier 1 is secured also pivotally supports two struts 11 on which the wheels 13 are mounted and the handle 5 is slidable in the sleeve 6 to cause retraction of the wheels due to the action of the struts 10.
Patent GB-159902-A (GB)
Title: Method and device for the electrical navigation of ships
IPC: G01S1/02
Filed: 1921-03-09
Abstract: 159,902. Signal Ges. March 12, 1920, [Convention date]. Drawings to Specification. Leader gear and other arrangements for assisting navigation.-In systems for indicating fairways by cables carrying alternating currents, the receiving coils on the ship are placed where the magnetic field is strongest, due to the distortion caused by the ship. This is stated to be at bends or edges, for example on the port and starboard rails, or high up, for example on the bridge. Each coil is connected to a thermoelement which can be switched in circuit with a galvanometer.
Patent GB-572931-A (GB)
Title: Improvements in or relating to the preparation of nitro-guanidine
Filed: 1942-06-03
Abstract: Nitroguanidine is produced in a continuous process in which guanidine nitrate and sulphuric acid of 90-98 per cent concentration are added to a circulating reaction mixture, a portion of the latter being continuously withdrawn for the recovery of nitroguanidine.  In the Figure, <PICT:0572931/IV/1> guanidinenitrate is fed to a mixer 1, and the mixture passed to a reactor coil 7, after addition of the necessary quantity of sulphuric acid at the point 4.  The reaction products pass to a constant level tank 11, which feeds the mixer 1, a portion of the reaction mixture being withdrawn for precipitation and recovery of the nitroguanidine by dilution.
Patent GB-1519662-A (GB)
Title: Reversible ploughs
IPC: A01B3/42
Filed: 1976-02-26
Abstract: 1519662 Reversible ploughs PFLUGFABRIK LEMKEN KG 26 Feb 1976 [5 March 1975] 07610/76 Heading A1B A spike 12 is formed on the carrier 5 of a depth wheel 6 so that when the plough has been raised for reversing the carrier 5 has been pivoted forwards through 180‹ on its shaft 4 from one vertical position to the other by the reversing of the plough, engagement of the spike with the ground, as the plough is lowered and moved forwards, ensures rearward pivoting of the carrier 5 to a position defined by stops 7 and 10. The stop 10 is equipped with adjustment screws 11, and the effective length of the carrier 5 may be adjusted by means of a clamping screw 8 of a device 7 connected to the shaft 4.
Patent GB-1040862-A (GB)
Title: Controlled action retarding hinge
IPC: E05D11/10
Filed: 1965-02-22
Abstract: 1,040,862. Hinges. T. D. SHARP. April 28, 1965 [Feb. 22, 1965], No. 7667/65. Heading E2F. In a multiple joint butt-type hinge, interengaging undulations are machined, stamped, or moulded in the load bearing surfaces of the joints, thus providing a controlled opening action. The hinge is capable of alternative handed use.
Patent GB-398515-A (GB)
Title: Improvements in or relating to connecting links particularly for use in typewriters and the like
IPC: B41J7/02
Filed: 1932-03-15
Abstract: 398,515. Construction of levers and links. GRANT, A. R., 87, Onslow Road, and HEMSLEY, C., 81, Ons low Road, West Croydon. March 15, 1932, No. 7683. [Class 80 (iii).: A connecting link, particularly for typewriter actions, consists of a length of spring-wire formed or provided at one or both ends with two loops E, L arranged at right-angles, and a pin C for insertion in a hole in the key-lever, type-lever, or like member X. The link may also be formed with an intermediate loop A for permitting angular and longitudinal adjustment of the limbs B, Bl.
Patent GB-836297-A (GB)
Title: Improvements in or relating to bearings for latch knitting needles
IPC: D04B35/04
Filed: 1958-03-11
Abstract: 836,297. Making pivots for knitting needles; punching; welding by pressure. TORRING- TON CO. March 11, 1958 [Jan. 23, 1958], No. 7740/58. Classes 83 (2) and 83 (4). [Also in Group VIII] The latch 10 of a knitting needle is secured and pivoted in the bearing slot formed in the shank of the needle, by punching two tongues 14, 16 from the side cheeks of the slot and pressing them together inwardly within the pivot hole formed in the latch. The two tongues are then welded together by producing sufficient heat directed from the same punches 12, 13 as form the tongues.
Patent GB-586440-A (GB)
Title: Improvements connected with tubular fluorescent lamp fittings
IPC: F21V23/00
Filed: 1944-04-26
Abstract: 586,440. Lamps for lighting. REVO ELECTRIC CO., Ltd., and FELTON, A. E. April 26, 1944, No. 7761. [Class 75 (iv)] [Also in Groups XXXV and XXXVI] A fluorescent lamp trough reflector b has a platform c upon which is mounted a removable casing a containing auxiliary control gear. Specification 581,377 is referred to.
Patent GB-1135221-A (GB)
Title: Polyester lacquers
Inventor: WIEJAK ALEKSANDER JERZY
IPC: B05D5/02
Filed: 1965-02-23
Abstract: 1,135,221. Dull polyester lacquers. IMPERIAL CHEMICAL INDUSTRIES Ltd. 16 Feb., 1966 [23 Feb., 1965], No. 7817/65. Addition to 1,131,303. Heading C3R. [Also in Division B2] A lacquer comprises a homogeneous or heterogeneous dispersion of a linear polyester of an alkylene glycol and a benzene dicarboxylic acid in a solution of a linear copolyester of an alkylene glycol and terephthalic and isophthalic acids. Suitable copolyesters are ethylene glycol/terephthalic acid/isophthalic acid or propylene glycol/terephthalic acid/isophthalic acid polyesters. Suitable polyesters are those from ethylene glycol or propylene glycol and terephthalic, isophthalic or orthophthalic acid. The primary solvent may be, e.g., 2-pyrrolidone or substituted 2 - pyrrolidone, cyclohexanone, chloroform, tetrahydrofuran or ethylene dichloride, to which may be added as a secondary solvent, e.g. toluene, methylethyl ketone or ethyl acetate. The linear polyester preferably does not form more than 25 wt. per cent of the total of polyester and copolyester, and this total amounts preferably to 5-30 wt. per cent of the lacquer. The usual pigments, dyestuffs and stabilizers (none specified) may be added. In examples, polyethylene terephthalate dissolved in N-methylpyrrolidone, with or without cyclohexanone, is added to polyethylene (60: 40 terephthalate/isophthalate) dissolved in N-methylpyrrolidone, with or without tetrahydrofuran and methyl ethyl ketone or in cyclohexanone and tetrahydrofuran, or the two polymers together are dissolved in N-methylpyrrolidone and cyclohexanone, to give dull-drying lacquers.
Patent GB-1533044-A (GB)
Title: Hardfacing by welding
IPC: C22C38/00
Filed: 1976-02-27
Abstract: 1533044 Welding by fusion BRITISH STEEL CORP 25 Feb 1977 [27 Feb 1976] 07838/76 Heading B3R [Also in Division C7] A heat-treatable precipitation hardening martensitic stainless steel hard facing, for a rolling mill work or back-up roll, is deposited on an iron or steel arbor by consumable electrode gas-shielded or submerged arc welding and comprises in weight per cent The ratio of Ni and Cu to the carbide forming elements being such as to achieve a microstructure of between 3 and 10% delta-ferrite in the interdentritic regions thereof. As particularly described, the hard facing is helically deposited by a submerged arc welding head moved axially of and above a rotated arbor. A consumable electrode, comprising a solid wire or mild steel tube containing alloy powder may be used in conjunction with a neutral or basic flux to give a hard facing with Mn : Si approximately 2 : 1. Single or twin electrode welding is effected using straight or reverse polarity D.C., with the arbor subjected to pre-heat and interpass temperatures respectively of 200 min. and 450 max.
Patent GB-757641-A (GB)
Title: Monostable multivibrator
IPC: H03K3/10
Filed: 1954-03-18
Abstract: 757,641. Pulse generating circuits. RADIO CORPORATION OF AMERICA. March 18, 1954 [March 20, 1953], No. 7939/54. Class 40 (6). A single stable state multivibrator or flipflop comprises two crossconnected electron discharge tubes which have a resistive connection between their cathodes and a diode connected between the cathode of the normally non-conductive tube and a point of fixed reference potential. The Figure shows a flip-flop in which tube V1 is cut-off and V2 conducting in the stable state. When a negative trigger pulse is applied at trigger input 10 tube V2 is cut-off and V1 is rendered conductive for a period determined by the time constant of capacitor 24 and resistor 27 when the circuit reverts to its initial stable state. The output pulse at the anode of tube V1 or V2 has a duration which does not vary appreciably with ageing of the tube or power supply variation, this is due to the diode V3 which prevents cathode 15 from going more than a fraction of a volt below earth potential when V1 ix cut-off so that only a small voltage drop across resistor 23 due to tube V2 conducting is needed to cut-off tube V1 and the negative feedback action of cathode resistor 16.
Patent GB-977912-A (GB)
Title: Junction for an overhead conveyor track
Inventor: KOELSCHTZKY BRUNO
IPC: B65G9/00
Filed: 1962-03-01
Abstract: 977,912. Switch points for overhead mono-rail systems. BECK & HENKEL MASCHINENBAU A.G. March 1, 1962, No. 7999/62. Heading B7L. A junction for an overhead conveyer track comprises a straight junction portion 7 for connecting two aligned track sections 1, 3, and a turn-out portion 9 for connectng a third track section 2 to the section 3, the portions 7, 9 being positively connected to each other by a link mechanism actuated by a member 11 pivotally mounted in the track section 3, and adapted to be engaged by a load carrier moving along that track section, the member 11 being rigidly connected to a quadrant 13 with an arcuate slot in which slides a pin 15 on a link 16 of the link mechanism. The arrangement is such that the link 16 will only be moved if the member 11 is pivoted in the direction of the arrow 24, whilst movement in the opposite direction only causes the pin 15 to slide in the slot. The link 16 is pivotally connected to a lever 17 pivoted at 18, and this lever engages with one arm 19 of a rigid bell-crank lever 19, 21 pivoted on a pin 20. Links 23, 22 connect the arms 19, 21 with the turn-out and straight portions 9, 7 respectively. The straight portion 7 is pivotally connected by a pin 8 to the track section 1 so as to pivot upwardly at an angle of 45 degrees to the horizontal into alignment between the track sections 1, 3, and the turn-out portion is pivotally connected by a horizontal pin 10 to the track section 2. The turn-out portion 9 is heavier than the portion 7 so that the portions assume the positions shown in Fig. 2. When a load-carrier is moved along the track section 3 in the direction of the arrow 24 to operate the member 11, the linkage is actuated to move the portion 7 into alignment between the track sections 1, 3, and to move the portion 9 upwardly. When the load-carrier moves on to the portion 7 it can then either be moved further to the track section 1, or it can be moved back on to the track section 3 but not so as to operate the member 11, which has been returned to its upright position by a counterweight 27, when the portion 9 will fall into alignment with the track section 3 due to its greater weight and the load-carrier may be moved on to the track section 2. Movement of a carrier from the track section 1 to the sections 2 or 3 and from the track section 2 to either of the sections 1 or 3 may also be effected by suitable movements of the carrier over the junction.
Patent GB-145859-A (GB)
Title: Improvements in kinematographic cameras
IPC: G03B15/08
Filed: 1919-03-31
Abstract: 145,859. Vinten, W. C. March 31, 1919. Kinematograph apparatus.-Tilting and rotating mechanism for a kinematograph camera is housed in a casing fixed to or forming part of the camera; the construction may be such that these mechanisms are operable, at the will of the operator, by the handle geared to the feed-mechanism or independently. As shown in Fig. 1, the casing a is secured to the camera 2 and has a depending portion comprising a gear-box c having a bottom plate which is attached to the tripod. The spindle b of the operating-handle has a long pinion e' engaging a spur-wheel e on the same shaft as a bevel-pinion f. A bevel-pinion g, Fig. 3, meshes with the pinion f and drives a bevel-pinion j which may mesh with one of two pinions k. The shaft k' of the pinions k carries a worm l engaging a circular rack m on the camera 2, so that the camera may be tilted upwards or downwards by means of the feed-handle according to which of the pinions k is engaged with the pinion j. A handle on the shaft of a pinion y' engaging a pinion y on the shaft k<1> may also be provided to enable the camera to be tilted independently of the operation of the feed-mechanism. The pinion f also drives a pinion h the shaft h<1> of which carries a pinion n, Fig. 4. Either of two pinions n<1>, n<3> on a pivoted frame n<5> may be brought into mesh with the pinion n and drive a wheel n<2> in either direction. The wheel n<2> is secured to a bevelwheel o which meshes with a double bevel-wheel p in gear with a bevel-wheel r attached to a worm s engaging a circular toothed rack t. The rack t is locked to the casing c so that operation of the mechanism described rotates the camera. The locking of the rack t to the casing may be effected by means of a worm u engaging a rack u<1> formed in one with the rack t, the. worm u being rotatable by hand so as that independent rotation of the camera may be effected. Differential gearing may be provided in connexion with the tilting. mechanism or the rotating mechanism, and a change-speed gear may be provided between these mechanisms and the feed-mechanism. The changespeed mechanism is of ordinary character and comprises toothed wheels on a shaft carrying a spiral wheel E, the wheels being alternatively brought into engagement with wheels on a way shaft f' which drives the spindle C of the feedmechanism. The spiral wheel E is engaged by a spiral wheel D on the shaft b when the feedmechanism is driven by the change-speed gear. Alternatively, a bevel-pinion I on the shaft C may be driven by a bevel-pinion H on the shaft b, this shaft being axially slidable for the purpose and having grooves w engaged by a spring latch v to keep it in desired position. The change-speed mechanism and a suitable feed-mechanism are described in Specification 145,860.
Patent GB-543086-A (GB)
Title: Improvements in or relating to typewriter attachments for making copies without the use of carbon paper
IPC: B41J35/30
Filed: 1940-05-06
Abstract: 543,086. Ink-ribbon mechanism. GESER, J. R. May 6, 1940, No. 8149. Convention date, May 16, 1939. [Class 100 (iv)] In duplicating-apparatus for typewriters comprising a ribbon which is driven from the platen by means of a friction-roller and can be swung away from the printing line, the friction-roller is constantly maintained in contact with the platen by springs which are tensioned when the apparatus is mounted on the typewriter. In the apparatus shown in Figs. 2, 4 (a development), and 5, a duplicating-ribbon runs along the platen 1 and is directed by guides 6a to a pair of spools 3a each provided with a toothed wheel 5 co-operating with another toothed wheel 15 which is driven frictionally be the platen. The wheel 15 is carried by a rock-arm 17 on a yoke 22 which can rock on a stationary tube 23 and is provided with a blade spring 26 which abuts on a ridge on the tube and holds the wheel in engagement with the platen. The rock-arm 17 has a pin 19 in engagement with a slot in a rock-plate 20 having a pin 41 for co-operation with an arm 35 pivotally connected to a lever 32 in connection with a steel band 31 which is mounted in a housing 6 and is formed with a guide-slot 30a for the ribbon. The arm 35 has a tooth 36 engaging a worm 37, and abuts on a spring 38. A slide-rod 24 mounted in the tube 23 is formed with grooves 24a engaging fingers 20a on the rock-plates 20. When the ribbon has been wound off either spool, a projection 29 on the ribbon is caught by the slot 30a in the associated band 31, the latter is pulled forwards, and the catch 36 of the arm 35 is released from the worm 37. Thereupon, the spring 38 swings the arm into contact with a pin 41 on the associated rock-plate, the slide-rod 24 is shifted, and the wheels 15 are swung into and out of engagement with the wheels 5 of the empty and full spools. Spring-balls co-operate with notches in the rock-plates to hold the parts in the set position. The housings 6 are connected by a tube 53 which can rock on the tube 23. When a new sheet is placed on the platen, the housings are raised and dropped, and the worms 37 are automatically turned, to re-tension the springs 38, by co-operation of pawls on the yokes 22 with ratchet-wheels 39 on the worms. Alternatively, the arms 35 can be manipulated by knobs 51 to re-tension the springs. To prevent the ribbon from being fed during backward rotation of the platen, detents 12 are automatically moved by the platen into engagement with the wheels 5 when the platen is turned backwards. The tube 23 supports the apparatus as a unit, and is detachably mounted in brackets 45, 46 on the carriage, the bracket 45 having a yoke 48 which co-operates with a spring retaining-pin 52 in the tube. When the tube is being mounted, the rod 24 and tube are turned by means of a detachable finger-piece to tension the springs 26.
Patent GB-1444899-A (GB)
Title: Drive mechanism
IPC: F16H55/02
Filed: 1973-06-13
Abstract: 1444899 Toothed gearing J H BREMS 13 July 1973 [15 June 1972] 08166/76 Divided out of 1444254 Heading F2Q A pinion 216 is secured to an arm 212 which is driven at constant speed about an axis A1 by a motor 206 through a reduction gear 202, and a rack 218 is maintained in engagement with the pinion 216 by rollers 228 carried by a plate 224 carrying an axle 222 on which the pinion 216 is rotatably mounted. The rack 218 is connected by a pin 234 to a pivoted link 232 to which an output link 240 is pivotally connected, a non- uniform movement of the output member being obtained.
Patent GB-141333-A (GB)
Title: Improvements in the manufacture of benzoic acid
IPC: C07C51/275
Filed: 1920-03-19
Abstract: Benzoic acid is prepared by oxidizing toluene by means of dilute nitric acid at an elevated temperature, the layers of acid and toluene being allowed to remain in contact without agitation for several days.  Acid of 36-43 per cent strength is preferred; the reaction may be started by adding a reducing agent, such as formaldehyde solution, paraformaldehyde, or copper, zinc, starch, &c., which causes the evolution of nitrogen oxides.  The nitrogen oxides evolved in the process are oxidized by the air present and then condensed along with the other vapours and returned to the reaction.  If necessary, air may be forced into the apparatus to assist in the oxidation of the nitrous fumes.  The used acid may be mixed with fresh acid for treatment of another batch.  The benzoic acid obtained is purified by conversion into its sodium or calcium salt, any contaminating nitro body being eliminated by treatment with a reducing agent and removal of the amino compound produced. According to the Specification as open to inspection under Sect. 91 (3) (a) the process is applicable to the production of acids by the oxidation of the side-chains of aromatic compounds in general, for example, the oxidation of ethylbenzene to benzoic acid, of o-nitrotoluene to o-nitrobenzoic acid, of xylenes to toluic and phthalic acids, and of o-cresol esters to salicylic acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-253253-A (GB)
Title: Improvements relating to electric switches
IPC: H01H37/60
Filed: 1925-03-27
Abstract: 253,253. Siemens Bros. & Co., Ltd., Petithory, E. A., and Garrod, E. R. March 27, 1925. Switches, quick-action thermal switches.-Upward movement of a rod 3 compresses a spring 14, situated between a collar 12 on the rod and a contact arm 6 pivoted at 5, till the collar 12 moves a catch 20 from engagement with the arm 6 whereupon the latter is moved upwards by the spring 14 and is finally held in its upper position by a second catch 22; during this movement of the arm 6 a spring 26 is compressed and when, during the reverse actuation of the switch, the rod 3 is moved downwards and a collar 23, mounted on a plate 11 fixed to the rod 3, moves the catch 22 from engagement with the arm 6, this spring 26 returns the arm 6 into its original position. By turning knobs 10, 24 the collars 12, 23 are rotated and thus the moments at which the catches 20, 22 are released varied. The rod 3 may be moved upwards by a thermal device such as an expansible capsule, a retractive spring 16 serving to lower the rod again when the capsule contracts.
Patent GB-873717-A (GB)
Title: Means for guiding material from one conveyor to another arranged below it
IPC: B65G47/44
Filed: 1959-03-10
Abstract: 873,717. Endless-belt conveyers; shoots. KLOCKNER-HUTTE BREMEN-A.G. March 10, 1959 [March 13, 1958], No. 8270/59. Class 78 (1). Material is guided from a conveyer 2, Fig. 1, to a conveyer 7 by a shoot 3, the back of which comprises a member 4 of rectangular crosssection and the bottom of which is movable horizontally by rack-and-pinion mechanism 6. The material collects in the angle between the bottom plate and vertical wall of the member 4 and forms a sloping mound over which further material slides on to the conveyer 7. In a modification the bottom 5 is movable in an inclined plane. In a further modification, Fig. 3, in which the conveyer 7 is reversible, the bottom plate 5 is divided by a vertical wall 9 to cause the formation of two mounds and is moved to a position appropriate to the direction of movement of the conveyer. In another modification, Fig. 4, the bottom 5, or the shoot 3 as a whole, is moved to ensure delivery of the material on to the central region of the belt.