baber/WOPTO huggingface dataset:
Patent GB-227768-A (GB)
Title: Improvements in planetary gears with rollers
IPC: F16H13/14
Filed: 1924-10-11
Abstract: 227,768. Matteucci, R. Oct. 11, 1924. Friction gearing of the kind comprising planetary rollers 4 connecting an outer ring 1 with an inner split ring 2, which is expanded automatically as the load varies to produce the necessary adhesion. The necessary permanent minimum expansive force is produced by resilient centring rollers 8 under radial pressure within the split ring 2 and rolling upon an inner supporting shaft &c. 6. There are other centring rollers 7. The automatic expansion under load is effected by a plate or lever 5 adapted to force apart the abutting ends 22 of the split ring. The rollers 8, 7 are held in place between a pair of split cage rings 9, 10. The resilient rollers 8 may be of the simple hollow cylinder form shown on the left of Fig. 2, or they may consist of concentric cylindrical laminations. They may consist of a coiled wire 8<IV> shown on the right of Fig. 2, or alternatively they may consist of different arrangements of coiled springs. They are preferably interspersed with the rollers 7 asymmetrically with respect to the opening lever 5. Different modes of assembling are described.
Patent GB-732251-A (GB)
Title: Improvements in or relating to props
IPC: E21D15/32
Filed: 1952-09-29
Abstract: 732,251. Pit-props. EGGEMANN, W., and CAMPENHAUSEN, E. VON., [trading as SCHWARZ KOMM.-GES., H.]. Sept. 29, 1952 [Oct. 3, 1951], No. 24284/52. Class 20 (2).  A telescopic prop comprises a clamp 12 fixed on the lower prop member and adapted to be tightened on the upper member 11 by a claw 57 having an aperture through which passes the ends of the flanges 55, 56 on the ends of the collar. The claw engages inner tapered parts of the flanges on which it is forced by a wedge 64 passing through apertures in the flanges and engaging cooperating surfaces 60, 61 on the claw.
Patent GB-584351-A (GB)
Title: Improved method of and means for brazing rods into rings, which may constitute, for example, short-circuited squirrel-cage windings of dynamo electric machines
IPC: B23K1/002
Filed: 1944-12-05
Abstract: 584,351. Making squirrel cage rotors. BROWN, H. B., WILLONER, G., EVANS, D. E. M., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Dec. 5, 1944, No. 24299. [Classes 83 (ii) and 83 (iv)] Brazing.-Bars are brazed into the rings of cage structures, such as squirrel cage rotors of induction electric motors, by inserting brazing spelter into grooves in one or both of the parts, placing the parts in a gap in a magnetic circuit and supplying alternating current to a coil linked with the magnetic circuit so that the ring forms a short-circuited secondary of a transformer and has suflicient heat generated to join the ring to all the bars in one operation. The rotor provided with end rings 9 and bars 8, a core 6 and shaft 7, is placed with its axis vertical and the shaft passing into and the core resting on the cylindrical polepiece 4 of a U-shaped yoke having a bridging piece 1 and vertical legs 2. The other polepiece consists of a laminated or other ring 3 secured to the legs. The pole 4 is surrounded by a coil 5 connected to an alternating current supply to act as the primary of a transformer of which the ring 9 forms the short-circuited secondary which is heated so as to melt the brazing material placed in the groove 10. The ring is clamped to the bars and the rotor to the polepiece 4 before applying the current. Packing or extension pieces may be used to adapt the apparatus to different diameters of rotor.
Patent GB-598833-A (GB)
Title: Power presses and the like
IPC: B30B1/16
Filed: 1945-09-20
Abstract: 598,833. Metal - working presses. BOOTH, M. B., and BOOTH, E. Sept. 20, 1945, No. 24330. [Class 83 (iv)] [Also in Group XXIX] In a hydraulically-actuated press for punching, bending, stamping metal &c. the press head is operated through toggle mechanism linked to the hydraulic mechanism. The press head 13 is reciprocated through toggle links 22, 23 connected by an extension lever 20 to a member 19 hinged to the ram 18 of a hydraulic cylinder 16. A control valve 25, Fig. 4 (not shown) claimed in Specification 598,884, [Group XXIX], is actuated by an auxiliary valve on a rod 26 operated by an arm 76 on the member 19. The rod 26 is moved to start the press and the ram 18 straightens the toggle 22, 23 to depress the head 13. The ram 18 is normal to the lever 20 at midstroke and the toggle links 22, 23 are in approximate alignment at the end of the stroke. At the end of each stroke the arm 76 through abutments 73, 74 reverses the control valve. Specification 582,875 also is referred to.
Patent GB-190231-A (GB)
Title: Improvements in apparatus for automatically controlling the flow of tides
IPC: G01C13/00
Filed: 1921-09-13
Abstract: 190,231. Parker, A. Sept. 13,1921. Lock gates; movable dams.-Piers 1 with automatically-operated gates 2 are built across a bay &c. and at each end of the series of piers 1 are a. pair of walls 1<a> with manually-operated gates 2<1>, which lead to locks. The gates 2 may also be manually operated, and when closed, as shown, point to the open sea. These gates have coiled spring hinges 3, Fig. 4, and when open abut against springs 5, Fig. 3. The gates 2<1> are moved by manually-operated bars 19, links 16, and racks 13 gearing on each side of a toothed wheel 11. A sprocket wheel on the axle of the wheel 11 engages with a chain 22 passing over a corresponding sprocket wheel working the lock gates at the other end of the line of piers 1. In a modification, the bars 19 for the lock gates are not interconnected and further bars 19 interconnected by rods are used to operate all the gates between the piers 1. A bridge may extend over the tops of the piers.
Patent GB-851137-A (GB)
Title: Stearylamine dispersions
Inventor: PREW HUBERT CHARLES
IPC: C23F11/14
Filed: 1958-07-30
Abstract: Stable aqueous stearylamine/stearylamine acetate dispersions are prepared by vigorously stirring a mixture of stearylamine and stearylamine acetate containing at least 10% by weight af the latter with water having a temperature of at least 70 DEG C., and cooling whilst maintaining vigorous stirring for as long as the temperature is above 40 DEG C.ALSO:Stable aqueous stearylamine/stearylamine acetate dispersions are prepared by vigorously stirring a mixture of stearylamine and stearylamine acetate containing at least 10% by weight of the latter with water having a temperature of at least 70 DEG C., and cooling whilst maintaining vigorous stirring for as long as the temperature is above 40 DEG C.
Patent GB-496707-A (GB)
Title: Improvements in and relating to pistons for internal combustion engines
IPC: F02F3/18
Filed: 1937-09-09
Abstract: 496,707. Pistons. PETERSEN, O. Sept. 9,1937, No. 24629. [Class 122 (i)] In a piston comprising a cast iron body 1 and steel head 8 enclosing a space 4 through which cooling medium is circulated, the head is secured by screw threads 9 at the level of the first piston-ring and abuts the body on a surface 10. The surface 10 is reduced to a minimum by recesses 11, 12. In a double-acting piston a second steel head is secured to the opposite end of the body in similar manner.
Patent GB-1132711-A (GB)
Title: Improvements in spindle brakes in textile spinning and twisting machines
Inventor: BRIDGE KENNETH
IPC: D01H7/22
Filed: 1965-06-10
Abstract: 1,132,711. Internal shoe-drum brakes. T.M.M. (RESEARCH) Ltd. 3 June, 1966 [10 June, 1965], No. 24634/65. Heading F2E. [Also in Division D1] A brake in a spindle assembly on a spinning &c. frame, comprises one or more shoes mounted on a stationary part of the assembly, a flexible container for air disposed between the shoe(s) and the stationary part of the assembly, and means to supply air to the container, whereby the latter applies an outwardly-directed force to the shoe(s) to move them against an internal braking-surface. The spindle, driven by a wharve 7, rotates on a footstep inside a sleeve 3 in a holster 4. The holster has an outwardly directed platform 6 with an upright collar 14, between which and three equidistant brakeshoes 16 is disposed a flexible tube 17 closed at both ends and communicating with a flexible air-line 18 passing between two adjacent shoes. To apply the brake, line 18 is connected to pressure and the shoes are forced radially outwards against the bias of a resilient retaining- ring to engage the inside of the wharve, the shoes being guided by upward extensions in tracks on a flange 15 extending radially from the collar 14. To release the brake, the line is vented to atmosphere.
Patent GB-266245-A (GB)
Title: Improved means for counteracting the glare of motor car headlights and the like
IPC: G02C7/16
Filed: 1926-10-05
Abstract: 266,245. Le Sueur, F. H. Oct. 5, 1926. Goggles.-For reducing the dazzling effects of approaching bright lights goggles of the kind provided with light screens arranged above and to one side of the normal horizontal line of vision have the screens b of lenticular or sector outline so that a convex curved portion is towards the pupil of the eye. The screens are arranged to one side of the glass a leaving the major portion clear. The Provisional Specification also describes other forms of screens arranged in a similar manner above the line of vision.
Patent GB-1156791-A (GB)
Title: Apparatus for Sizing and Drying of Warp Threads.
Inventor: BATES ALAN
IPC: F26B13/00
Filed: 1965-06-11
Abstract: 1,156,791. Drying apparatus. CONWELL ENG. CO. Ltd. 7 Sept., 1966 [11 June, 1965], No. 24686/65. Heading F4G. [Also in Division D1] Warp yarns are sized and dried between the creel and a sectional warping machine by passing them under a roller 18 in a size bath 14 and round three or more drying cylinders 15, 16, 17. These cylinders have double walls providing annular chambers through which hot oil is circulated by a pump 26 from a container 24 heated by immersion heaters 25. An expansion chamber open to atmosphere may be provided above container 24. The apparatus may run on rails and be traversed across the width of the warping machine by a motor-  driven lead screw 20. The drying cylinders  may be enclosed in a hood (not shown).
Patent GB-858955-A (GB)
Title: Manufacture of electric dry cells
Inventor: MALEWSKI ANDRZEJ MARIAN
IPC: H01M6/22
Filed: 1958-07-31
Abstract: 858,955. Batteries. BURNDEPT Ltd. July 8, 1959 [July 31, 1958], No. 24746/58. Class 53. The white mix of a dry cell consists of the electrolyte salts mixed with water, bentonite, and starch or flour, the bentonite being present to the extent of 0À75% to 3À5% by weight of the mix. In an example the mix contains the chlorides of zinc, ammonium, and mercury, water, bentonite, starch, flour and gum. The bentonite is first dispersed in a part of the water and allowed to swell. The rest of the water is then added with stirring, followed by the zinc chloride in solution, and then by a mixture of ammonium chloride and mercuric chloride and gum. When the ingredients have been dispersed, the starch and flour are added and the mixture stirred to form a smooth paste. When used in a Leclanche cell it is cooked on a water bath for a few minutes at 73 ‹C.
Patent GB-717398-A (GB)
Title: An improved control for variable speed gears on cycles
Inventor: YAPP THOMAS ALFRED
IPC: B62M25/04
Filed: 1952-10-04
Abstract: 717,398. Control lever mechanism. HERCULES CYCLE & MOTOR CO., Ltd. June 22, 1953 [Oct. 4, 1952], No. 24926/52. Class 136(1) In a control for variable-speed gears for cycles of the type in which a flexible cable 27 leading to the spring-loaded gear selecting mechanism is connected to a pivoted quadrant 15 having on its edges angularly spaced teeth 19, 20 which are engaged by a spring pressed pawl 21, and the quadrant is moved angularly by a pivoted finger lever 14 which is coupled to the quadrant by means incorporating a certain degree of lost motion, a spring 33 is interposed between the finger lever 14 and the toothed quadrant 15 to hold the lever normally in one limiting position of angular movement. The quadrant 15 is formed by three plates the central one of which is cut away to allow the passage of the cable 27. A peg 31 fixed in the quadrant projects into a slot or opening 32 in the finger lever 14 to provide a predetermined amount of lost motion between the lever and the quadrant. The spring 33 is a torsion spring mounted on the peg 31 and has two limbs with cranked ends 34, 35 engaging respectively with the lever 14 and quadrant 15. The spring urges the lever in the angular direction in which the lever is moved to tension the cable 27 and holds the front edge of the opening 32 against the peg 31.
Patent GB-1429035-A (GB)
Title: Limited radiation communication system
IPC: H04B7/26
Filed: 1973-05-24
Abstract: 1429035 Radio signalling; inductive signalling THOMSON-CSF 24 May 1973 [26 May 1972] 25003/73 Addition to 1370909 Headings H4L and H4U  In a system for communicating between fixed and mobile stations via a transmission line arranged to provide a limited amount of radiation, e.g. for informing a driver of a road vehicle of traffic conditions, the fixed station comprises a transmitter or transmitters operating on two carrier frequencies and coupled to said transmission line, each end of the line being provided with an auxiliary transmitter transmitting at said two carrier frequencies and modulated by different low frequencies at the respective ends. As shown in Fig. 1, two information signals from microphones 40, 41 are separately recorded at 42 and frequencymodulate carriers F1, F2 at 43, 44 respectively. The resulting signals are supplied via a coupler 45 to the radiating transmission line 20, 21, 22 with amplifiers 28, 29 and terminated by resistor 10. At one end of the transmission line, transmitters 471, 472 supply carriers F1, F2 which are amplitude modulated by low frequency f 1  and coupled to a directional aerial 50 and at the other end similar transmitters 491, 492 also provide carriers F1, F2 which are amplitude modulated by low frequency f 2  and transmitted via a directional aerial 48. Thus, depending on the direction of travel, each vehicle will receive a signal amplitude modulated by either f 1  or f 2  which will cause the vehicle receiver to be switched to receive the signal appropriate to its direction of travel if it is not already correctly tuned. In one arrangement for a vehicle receiver, Fig. 3, the frequencychanger 51 may be switched by relays 36, 37 so that the receiver is tuned to receive either F1 or F2. The received signal, after frequencychanging, is amplified at 320 limited at 321 and supplied via frequency discriminator 33 to the output 34, 35. The output of amplifier 320 is also supplied to an amplitude detector 323 and the modulating signal f 1  or f 2  is selected by filter 327 or 328 to switch a bi-stable 300 accordingly and operate the appropriate relay 36 or 37. The bi-stable 300 is controlled via a monostable 326 by a threshold device receiving the output of detector 323. In a modification, Fig. 4 (not shown) logic circuitry is provided to protect the arrangement from parasitic signals and means are provided for switching over the receiver from conventional broadcast reception when a signal f 1  or f 2  is received.
Patent GB-594970-A (GB)
Title: Improvements in or relating to selective carburizing method and stop-off paint used therein
IPC: C23C8/04
Filed: 1944-12-14
Abstract: In a method of carburizing a steel article in a molten cyanide bath, a coating comprising a liquid vehicle which dries to an adherent film and has suspended therein a mixture of two powdered metals, one having a melting point below the temperature of the bath and the other above the temperature of the bath, is applied to a portion of the article, the metal of higher melting point being present in it to 50 times that of the lower melting point metal and in such proportions that the melting point of such an alloy of the metals is above the temperature of the carburizing bath, the article so coated being then dried and immersed in the cyanide bath to carburize the uncoated portion.  The coating liquid may comprise a varnish, e.g. natural resin varnish, paracoumarone resin varnish, maleic resin varnish, glycerylphthalate resin varnish or phenol-formaldehyde resin varnish, having suspended therein 90-98 per cent of powdered copper and 2-10 per cent of powdered tin.  Lead or aluminium may replace the tin.  A satisfactory protective coating may be obtained at 1500-1750 DEG  F.  The Specification as open to inspection under Sect. 91 comprises also the coating of an article without the succeeding carburizing treatment.  This subject-matter does not appear in the Specification as accepted.
Patent GB-600123-A (GB)
Title: Change speed gear mechanism for cycles
IPC: B62M9/124
Filed: 1945-09-27
Abstract: 600,123. Variable-speed chain gearing. LANG, R. Sept. 27, 1945, No. 25136. [Class 80 (ii)] In a variable-speed gear for cycles of the kind in which the chain E is shifted laterally on to different sized sprockets F, G, H on the driven hub by axial movement of a jockeysprocket K, the latter is mounted on a non-rotatable sleeve 16 having a pin and helical:slot connection 20, 21 with a spindle 14 which is rotated to adjust the jockey-sprocket axially and is carried in a sleeve 10 adjustably screwed in a two-piece adjustable bracket L. The bracket L is pivoted on a fixed bracket 1 clamped to the rear wheel spindle by its nut 2, and is loaded by a spring 3, 4 to tension the chain E. A chain guide 23 is secured to the sleeve 16 by cones 18 and a lip 23<1>, rotary movement of the guide 23 and therefore of the sleeve 16 being. prevented by a pin 24 secured to the bracket L. Operation of cables M secured to a pulley 15 causes rotation of spindle 14 and thus lateral movement of sprocket K to shift chain E on the nested sprockets F,G,H.
Patent GB-283288-A (GB)
Title: Improvements in the electro-deposition of metals
IPC: C25D5/44
Filed: 1926-10-09
Abstract: 283,288. Webb, H., and O'Brien & Partners, Ltd., S. Oct. 9, 1926. Metals, depositing; preparing and treating surfaces; treating after deposition.-A process for electrodeposition of metals on aluminium. or aluminium alloy consists in treating with strong nitric acid prior to treatment in the electrolytic bath and without any preliminary treatment other than treating with boiling caustic alkali for cleansing and removing grease, and subjecting to heat at a temperature considerably above boiling- point after the plating operation. The electrolytic bath consists of an acid salt of the metal to be deposited; when a salt other than a nitrate is employed the article, after treatment with nitric acid, is dipped into a bath of acid corresponding with the electrolyte. Nickel, zinc, and copper may be deposited directly on aluminium or its alloys from baths of a solution of the sulphate acidulated with sulphuric acid, the article being dipped in dilute sulphuric acid after treatment with strong nitric acid and before immersion in the plating bath. After removal from this bath the article is dried by embedding in sawdust and the heat treatment carried out by immersing in a sand bath in an oven and raising the temperature to 350‹-360‹ F. When a coating of silver is required, copper or other metal is frst deposited by the method described above, and a coating of silver is then deposited by any known method. Gold, silver, tin, lead, and cadmium may similarly be plated from a cyanide bath by known processes on a coating of copper deposited by the method described above. In the case of nickel plating on aluminium articles having rough cast surfaces, the articles are plated with copper by the above-described process, and subsequently plated with nickel. Alternatively the heat treatment may be given after the final plating with nickel instead of after the first plating, or in addition to the latter. For nickel plating an anode of cast nickel having one and a half times the surface area of the cathode may be employed.
Patent GB-1089426-A (GB)
Title: Plain bearing with resiliently mounted bush
IPC: F16C33/10
Filed: 1965-06-15
Abstract: 1,089,426. Bearings. CONTINENTAL GUMMI-WERKE A.G. June 15, 1965 [July 3, 1964], No. 25173/65. Heading F2A. A plain bearing comprises a rubber body 2 containing and adhered, e.g. by bonding, to a bush 1 of polyamide reinforced with fibreglass, and a sleeve 3 of sintered metal mounted on a shaft and slidable within the bush. The body has a collar 6 extending around abutting flanges 4, 5 and having a lip 7 bearing against the axially outer surface of flange 5 which is recessed to receive it. Sleeve 3 is saturated with lubricant.
Patent GB-777732-A (GB)
Title: Process for the manufacture of aromatic hydrocarbons
IPC: C07C5/41
Filed: 1954-08-30
Abstract: p-Xylene is obtained by passing 2:2:4-trimethylpentane vapour at a raised temperature over a catalytic mass comprising 5-40 per cent of chromium oxide, 1-10 per cent of potassium oxide, 0.5-5 per cent of cerium oxide, and 93.5 to 45 per cent of gamma aluminium oxide. Preferably the reaction is effected at a temperature of 475-550 DEG C. for a contact time of 1-12 seconds in the presence of a carrier gas such as nitrogen, hydrogen or isobutylene.  Isobutylene formed in the action may be dimerized to 2:4:4-trimethylpentane which may be hydrogenated to trimethylpentane.  The catalyst may be prepared according to the method described in Group III.ALSO:A catalyst for use in the manufacture of p-xylene from 2:2:4-trimethyl pentane (see Group IV(b)) consists of 5-40 per cent of chromium oxide, 1-10 per cent of potassium oxide, 0.5-5 per cent of cerium oxide and 93.5 to 45 per cent of gamma aluminium oxide.  The catalyst may be made by heating precipitated aluminium hydroxide to 750 DEG C. for 5 hours, to convert it to the gamma form, breaking up into small pieces and then adding chrome acid, potassium nitrate and cerous nitrate and after drying, finally reducing in a current of hydrogen.
Patent GB-312554-A (GB)
Title: Improvements in safety-razor blade holders
IPC: B24D15/10
Filed: 1928-09-03
Abstract: 312,554. Schwartz, W. H. Sept. 3, 1928. Razors, safety.-A safety-razor blade holder for use in stropping consists of a strap A of rubber or other soft flexible material folded upon itself and secured by rivets a, stitching, &c. in that position to leave a pair of juxtaposed ends a<2>, a<3> between which the blade is placed in any desired position. The flexibility of the holder obviates cracking or breaking of the blade during stropping.
Patent GB-338524-A (GB)
Title: Improvements in or relating to arrangements for use in telephone or like systems
IPC: H04Q3/00
Filed: 1929-08-19
Abstract: 338,524. Automatic Telephone Manufacturing Co., Ltd., and Jackson, H. Aug. 19, 1929. Drawings to Specification. Automatic exchange systems.-A ring trip relay has two opposing windings in parallel, and a condenser in series with one winding, so that it is unaffected when the ringing circuit is completed, but pulls up over its direct current winding when the called party replies, and locks to the ringing return lead.