baber/WOPTO huggingface dataset:
Patent GB-348383-A (GB)
Title: Improvements in means for suspending reflectors or shades of electric light fittings
IPC: F21V31/00
Filed: 1930-05-14
Abstract: 348,383. Lamp shade &c. holders. BENJAMIN ELECTRIC, Ltd., Brantwood Works, Tariff Road, Tottenham, London, and KAVANAGH, L. R., Highfields, Wingletye Lane, Hornchurch, Essex. May 14, 1930, No. 14817. [Class 75 (ii).] The top of an electric light shade or reflector is fitted with a lead or like deformable washer and with a screwed member which is so shaped as to compress the washer and make one or more watertight joints. In the form shown in the Figure, a cast nut 10 is formed with an hexagonal or other multi-sided boss 13, a recess 14, and a tapered portion 15 which is adapted to compress the sleeve portion 16 of a washer 17 into the threads of a lamp holder nipple 12. The flange of the nut 10 extends over the entire top of the neck 11 of the reflector and makes a further joint by means of the disc portion 18 of the washer.
Patent GB-499710-A (GB)
Title: Improvements in railway trucks
IPC: B61F5/30
Filed: 1938-05-18
Abstract: 499,710. Railway vehicle bogies. HADDAN, R. (Symington-Gould Corporation) May 18, 1938, No. 14848. [Class 103 (vi)] A railway truck comprises a side frame 3, 4 supporting a bolster 66 in an opening and the journal boxes 8 are vertically movable in pockets in the frame and have surfaces cylindrically convex about their vertical axes to allow for horizontal angling. Two helical springs 33 and one semi-elliptic spring 34 are arranged between the journal boxes and the frame and have a different vibration period to the springs arranged between the bolster and the frame and which comprise four helical springs 28 and two semi-elliptic springs 29 mounted between upper and lower spring plates 30, 31. The spring 34 is mounted on a projection 44 of the journal box which extends through an aperture in the frame 3, 4. The helical springs 33 are mounted between ledges 35, 42 on the journal box and frame respectively. The ledges are provided with co-operating cylindrical flanges. The tension and compression members of the frame are of inverted U-shaped section, and the tension member 4 is provided with a corrugation 19. The bolster guide columns 5 of the frame comprise webs 22 which are concave to co-operate with curved surfaces on the bolster to allow angling between the frame and bolster, which movement is limited by radial surfaces.
Patent GB-317537-A (GB)
Title: Improvements in synchronising systems
IPC: H04N5/067
Filed: 1928-05-22
Abstract: 317,537. Beatty, W. E., (Bell Telephone Laboratories, Inc.). May 22, 1928. Synchronous movements.-A synchronizing system comprises automatic means for varying, upon departure from synchronism, the natural frequency of sharply responsive resonant apparatus associated with speedcontrolling apparatus. When a driving motor 4 of a television receiver is started, it accelerates until the frequency of the current developed by an inductor generator 11 approaches the frequency to which a circuit 33 is tuned. The potential of a grid 18 of a detecting-valve 16 is normally negative, due to a grid-bias battery 6 and is increased by the alternating voltage drop across the inductance 30. This causes plate current to flow in the valve and produces, in a coupling resistance 31, a voltage drop which is impressed on the normally negative grid 22 of an amplifying-valve 20 and causes plate current to flow in a regulator field winding 10. This increases the excitation of the motor and prevents further rise in speed. The constants of the motor and regulator circuit are so adjusted that the operation of the motor is in equilibrium on the ascending portion of the resonance curve of the tuned circuit 33. When the speed varies from this point the current through the regulator field winding is varied to correct the tendency of the motor speed to change. To maintain exploring discs 56, 64, at the transmitter and receiver respectively, accurately in phase, an aperture 65 is arranged in the disc 56 on a radius midway between the first and last of a series of spiral exploring-apertures. Light from a source 53 is directed through the aperture and an opening 66 in a screen 58 to be reflected by mirrors 67 to a photo-electric cell 60. The resulting synchronizing impulse is employed at the receiver to actuate a polarized stepping-relay 68 when the disc 64 is out of synchronism. The appropriate winding 77, 78 is energized by contacts 75, 76 on a commutator disc 70 and varies the capacity of a condenser 35 through toothed wheels 88, 89. This alters the natural frequency of the circuit 33 and thus causes an appropriate change in the speed of the motor 4. According to modifications : the aperture 65 is replaced by an electric contact; the movable plate of the condenser 35 is connected directly to the armature of the relay 68; the resonant circuit 33 is replaced by a tuning fork, the natural frequency of which is altered by variable weights.
Patent GB-1465247-A (GB)
Title: Herbicidal compositions
IPC: A01N47/12
Filed: 1975-04-11
Abstract: 1465247 S-Benzyl isobutyl-sec-butylthiocarbamate STAUFFER CHEMICAL CO 11 April 1975 [6 May 1974] 14975/75 Heading C2C [Also in Division A5] The invention comprises S-benzyl isobutylsec-butylthiocarbamate of the formula and its preparation by reacting isobutyl-secbutylamine with S-benzyl chlorothioformate in the presence of a sodium hydroxide solution in water. The compound of the invention has herbicidal properties and may be used, together with a diluent, in the form of herbicidal compositions.
Patent GB-529515-A (GB)
Title: Improvements relating to bearings of rotors
IPC: F16C13/02
Filed: 1939-05-19
Abstract: 529,515. Roller bearings. DEMAG AKT.-GES. May 19, 1939, No. 15015. Convention date, May 20, 1938. [Class 12 (i)] In multicylinder engines or rotary compressors having rotors mounted on roller bearings located in the end walls of the casing, the end walls are initially set at an angle to the axis of the casing so that when the engine is in a hot loaded working condition the distortion is such that the bearings are correct position. As shown, a self aligning roller bearing 5 is mounted in the end walls 3 of the rotary engine. When cold the end walls 3 are inclined to the end of the rotor 1. When the engine warms up the end walls 3 and the rotor ends become parallel to one another.
Patent GB-193370-A (GB)
Title: Improvements in or relating to wire reinforcements for cement and like pipes
IPC: B21F17/00
Filed: 1922-05-29
Abstract: 193,370. Soc. des Tuyaux et AgglomÚrÚs Centrifuges. Feb. 16, 1922, [Convention date]. Reinforced-concrete pipes.-Metallic wire reinforcement for cement pipes is formed from a wire by continuously winding it into spiral form, first from one end and then from the other, so that the wire will return to a point on the starting base of the theoretical cylinder at an angular distance from the starting point, such angular distance not being an aliquot part of the circumference. The wire is wound as a. spiral 2, Fig. 1, on a cylinder, starting from a point 1 at one end and ending at 3, whereupon the reverse spiral 4 is started, the cylinder continliing to rotate in the same direction and the wire being led back along its surface finishing at a point 5 removed from 1 on the end of the cylindrical surface. The winding is performed automatically in a machine comprising a rotating mandrel 7, Fig. 3, and a sliding guide 28 for the wire. The guide is reciprocated by a connecting rod 20 attached to an endless chain 18 driven at a suitable speed through gearing 15, 16 from the driving shaft 12, which rotates the mandrel through worm gearing 11. The wire is twisted before winding, to counteract the tendency to contract longitudinally after its removal from the mandrel.
Patent GB-558511-A (GB)
Title: Improvements in wave length modulation
IPC: H03C3/16
Filed: 1942-10-28
Abstract: 558,511. Frequency modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 28, 1942, No. 15142. Convention date, Oct. 29, 1941. Addition to 556,852. [Class 40 (v)] A frequency modulation transmitter comprises two valve oscillators differentially modulated by the signal, the valve electrodes being associated with a single crystal which is so arranged that the respective valves tend to oscillate at slightly different frequencies but are compelled to oscillate at an intermediate frequency by a common anode circuit. As shown, the crystal has on one face an adjustable electrode 2 connected to the valve cathodes, and on the other face two separately-adjustable electrodes 3, 4 connected to the respective control grids G1, G<SP>1</SP>1. The mean frequency is adjusted by moving the electrode 1, and the other electrodes 3, 4 are adjusted so that the valves tend to oscillate at different frequencies. The anode circuit 17 is tuned to the mean of these two frequencies. The signal is applied through a transformer 18 in push-pull relation to the outer grids G3, G<SP>1</SP>3, causing each valve to predominate in turn, and giving a frequencymodulated oscillation in the circuit 17. In a modification, the crystal electrodes are not adjustable, but are shunted by condensers of different capacity, Fig. 2 (not shown).
Patent GB-808951-A (GB)
Title: Oil purifier
IPC: C10M175/00
Filed: 1954-05-22
Abstract: An apparatus for purifying lubricating and fuel oils by the removal therefrom of the acid content and solid impurities in the form of particles, comprises a vessel, means for maintaining the pressure in the vessel above atmospheric pressure, jet inlets for oil and for steam, or for oil and for steam with hot water, provided in the base of the vessel, the steam inlet and the inlet for the oil to be purified being provided at positions and so disposed that the jets of steam or of steam and hot water impinge, and an outlet for the intermixed oil and water mounted at the upper end of the vessel. Preferably the washing process is effected at 160-180 DEG  F.  A preferred construction comprises an outer cylindrical casing <PICT:0808951/III/1> 1 and an inner lining 2 which may be maintained in spaced relation by circumferential rings 3 incorporating holes to allow the free circulation of steam.  Oil enters through a pipe 5 and steam or steam and hot water enter by means of an annular ring 6. Test cocks 12 and 13 are provided in the cylinder wall and provide means whereby the oil and water content of the cylinder may be ascertained.  In operation the cylinder is first charged with water through a pipe 17 and this water heated to 180 DEG  F.  Oil and steam or steam and water is then admitted and the atomized oil is rendered substantially free from acid, and the oil together with water is withdrawn through a spring loaded valve 20 and the oil separated by centrifugal action.
Patent GB-1068718-A (GB)
Title: Improvements relating to pallet loading apparatus
Inventor: DECOURCY ROLAND JOHN JAMES
IPC: B65G57/00
Filed: 1965-04-09
Abstract: 1,068,718. Loading pallets. DOUGLASROWNSON Ltd. April 9. 1965, No. 15213/65. Heading B8C. A layer of articles is assembled on a flexible apron 4, Fig. 1, which is then quickly retracted to deposit the layer on a pallet (54) below. The pallet, supported on a platform 5, is lowered between the loading of each layer. Stacking articles on to pallets.-The flexible apron 4, see also Fig. 3 (not shown), comprises rollers (35) extending between side chains (36), which are attached to a winding drum 40 at one end and a tensioning device 38 at the other. When fully loaded the apron takes up a horizontal position resting on the pallet, and is then retracted round the drum to deposit its load. Lowering the pallet.-After each layer has been deposited on the pallet, the support 5 is lowered by an amount determined by a photo-cell (65), Fig. 4 (not shown), which views the top of the top layer of articles on the pallet. Feeding articles; stop motions.-The articles are transferred manually from a conveyer belt (not shown) to rollers 3, which are inclined slightly downwards towards the apron. The articles are prevented from moving on to the apron by the push-bar (25), Fig. 3 (not shown). When a complete layer of articles has been collected the operator depresses a foot switch 28 which causes the bar (25) to rise and the articles to be pushed on to the apron by a bar (26). In the event of a jam the force exerted on the bar (26) will cause a framework 31, on which the bars (25, 26) are mounted, to rise to position 31<SP>1</SP> thereby opening a switch 34 stopping the driving motor. Feeding pallets; delivery of filled pallets.-The fully loaded pallet is removed from the conveyer defined by the rollers 7 on to a further conveyer (not shown). At the same time a fresh pallet 9 is fed from the store 11 along the rollers 7 into position directly above support 5.
Patent GB-438208-A (GB)
Title: Improvements in or relating to slicing machines for slicing material such as foodstuffs
IPC: B26D1/143
Filed: 1934-05-22
Abstract: 438,208. Sharpening machine cutters. HOBART MANUFACTURING CO., Troy, Ohio, U.S.A.-(Assignees of Meeker, D. A., and Slager, J. C.) May 22, 1934, No. 15252. Convention date, May 29, 1933. [Class 60] [See also Groups VI and XXXIV] The Specification as open to inspection under Sect. 91 describes a knife grinder, the cover 161 of which is pivotally mounted to a base 160 secured by bolts to the machine. The grinder unit is vertically slidable in a slot 180 in the base 160 and is locked therein by tightening a nut 184. A stop pin 186 determines the operative position of the unit, the pin being adjusted downwardly to an extent corresponding to the wear on the knife edge. A spring 192<a> on a reduced part 192 of a slidable rod 190 lies between slotted washers which abut against shoulders 194, 195 on a sleeve 182 and a screwed bush 196 respectively, to cause the rod 190, when axially displaced by the handle 191, to return to a central or neutral position. The rod 190 carries a yoke 200 in which a grinding disc 201 and a burring disc 202 are journalled. Rotation of the yoke 200 on the rod 190 is prevented by a pin 203 on the sleeve 182 engaging a slot 204 in the yoke. The handle 191 is pressed or pulled to engage one disc or the other with the knife. Grease particles collect in the grinder casing, and in order that its sanitary condition may be evident to the user, provision is made for preventing the functioning of the grinder unless the cover is open. Thus, a pin 205 on the yoke 200 cooperates with ribs 206 on the cover 161 and prevents the operation of the handle 191. The pin 205 may be removed if this provision is not required. This subject-matter does not appear in the Specification as accepted.
Patent GB-758820-A (GB)
Title: Improvements in or relating to process for preparing dense periclase refractory material
Filed: 1953-06-03
Abstract: Periclase is formed by mixing a periclase-yielding material in finely divided form with a chromium material and at least one secondary crystallization promotor selected from compounds of aluminium, beryllium, cobalt, lead, copper, manganese, nickel, vanadium, zinc and zirconium, the amounts of said chromium material and promoter added being up to 2 per cent total, calculated as oxide, of the fired product, and firing the mixture at over 1300 DEG C. and preferably 1500 to 1800 DEG C. to yield periclase. The initial magnesian material may be magnesite, bruite, magnesium carbonate, boric carbonate, hydroxide, acetate or alcohalate or cryptocrystalline magnesia prepared for example by calcining magnesia at not more than 1200 DEG C. for not more than one hour.  The chromium compound may be chromic acid, chromium chloride, sulphate, nitrate, acetate, chromium metal, chromate, or dichromates of alkali metal, ammonium, alkaline earth metals and magnesium.  They are preferably added in aqueous or other liquid solution or suspension.  The secondary promoters may be added as finely divided solids or as aqueous or other liquid suspensions or solutions, and may, if desired, be chemically combined with the chromium material, for example as zinc or copper chromate. An example relates to the addition of 1/8 to each of beryllium chloride and chromic acid (calculated as oxides), to magnesium hydroxide followed by drying, pelleting and firing at 1700 DEG C. to yield a periclase of 7.9 per cent porosity. Further examples specify the addition with chromic acid of aluminium chloride, zirconia and cobalt chloride, and manganese sulphate with chromium nitrate. Specifications 698,797 and 711,908 are referred to.
Patent GB-865854-A (GB)
Title: Removing organic solvents from polymer latices by evaporation
IPC: C08J3/07
Filed: 1959-05-05
Abstract: <PICT:0865854/III/1> An apparatus for removing organic solvent from a polymer latex comprising said solvent and water comprises a tower 1 having a zigzag arrangement of plates 3, spaced from the wall of the tower, down which the raw polymer latex is passed from an inlet 2, while heat is supplied from hot recycle latex fed on to plates 3 from inlets 22, 23 and 24.  The arrangement of plates is such that contact between ascending vapour and descending latex is minimised, thereby eliminating re-entrainment of vapour in the latex.  Where a latex such as a dispersion in water of a hydrocarbon solution of butyl rubber is to be treated, the vapour consisting of solvent and water passes out at 26, latex containing 35 to 38% solids is withdrawn at 18 and filtered, one stream for recycling being heated to 150 to 200 DEG F. at atmospheric pressure in a heat exchanger 21, while another stream is pumped by way of surge drum 28 into a tower 30 maintained at between 160 to 185 DEG F. and at a pressure of 7 p.s.i.  Water is removed at 31 and latex containing 50 to 55% solids is removed at 32. Each plate 3 is rectangular and has vertical edges on three sides, the fourth side being free to allow discharge of latex on to the plate beneath. The ends of the inlets 2, 22, 23 and 24 are slotted, the slots facing the tray beneath to introduce latex directly thereon. Examples of polymers which may be similarly treated are natural rubber, polyisobutylene, polybutadiene, copolymers of isobutylene with isoprene or styrene, and of butadiene with styrene or acrylonitrile.
Patent GB-665186-A (GB)
Title: Improvements in rolling mills
IPC: B21B13/14
Filed: 1949-06-09
Abstract: 665,186. Rolling. FOX CO., Ltd., S., and BURNHAM, D. S. Sept. 7, 1950 [June 9, 1949], No. 15378/49. Class 83 (iv). In a rolling-mill the working rolls 10 are backed by and driven from a pair of intermediate rolls 11 of larger diameter which are in turn supported by a pair of backing rolls 12 of still larger diameter, the periphery of each of which is in contact with that of its associated intermediate roll across substantially the whole width thereof, the axes of all the rolls lying in the same vertical plane. The work rolls, which may be of tungsten carbide or similar material and are supported in resinbonded fabric bearings, are provided at each end with hardened steel caps 18 which bear against thrust bearings 19. In a modification. lateral support for the work rolls, to prevent bending, is provided by strips of resin-bonded fabric, Fig. 6 (not shown), carried by metal bars. Four high mills may be converted, by moving the work rolls apart to form intermediate backing rolls for new, smaller diameter work rolls which are inserted, the new bearings being accommodated in modified chocks which replace the original ones.
Patent GB-638482-A (GB)
Title: Improvements in gramophones
IPC: G11B3/00
Filed: 1945-06-18
Abstract: 638,482. Gramophones. MURPHY RADIO, Ltd., BALEAN, J. H., and ROWE, P. J. June 18, 1945, No. 15428. [Class 40 (ii)] The tracker arm 9 of a gramophone is secured to and is supported by a wire 1 which is twisted as the arm rotates. The arm is provided with a vertical tubular extension 10 which is clamped to the wire by means of a screw 11. The wire is anchored to studs 6 in the ends of a.tube 2 and passes freely through plugs 13 of rubber or synthetic plastic at the ends of the extension. To prevent strain on the wire when the instrument is carried, the plugs 13 may be flanged so as to nearly fit recesses in plugs 7. The tube 2 may be lifted automatically to raise the pick-up or sound-box from the record. A frictional restraint may be applied at the same time to prevent the arm swinging.
Patent GB-1170447-A (GB)
Title: Material Propulsion Means
IPC: E21F13/06
Filed: 1966-04-07
Abstract: 1,170,447. Endless conveyers. SHAW, TREW & SMITH Ltd., and D. G. SHAW. 6 July, 1967 [7 April, 1966], No. 15494/66. Heading B8A. [Also in Division F2] In a conveyer in which flights 10 scrape material along a surface and are connected to a chain 6 which runs in a channel 5, the material is kept from falling into the channel 5 by overlapping plates 20 carried by the chain 6. The latter comprises spaced pairs of links 13 mounted for rotation about horizontal pivot pins 14, alternating with a single pair of links 11 mounted for rotation about vertical pivot pins 12. The pins 14 carry end shoes 24 for providing a guiding action relative to sides 26, 26 1  of the channel 5. Thus the conveyer can be of semi circular track in plan view (Fig. 1, not shown). Material is confined by sidewalls (3).
Patent GB-1159305-A (GB)
Title: Improvements in or relating to Transferable Vehicle Goods Containers
Inventor: COWLISHAW FRANK
IPC: B60P1/64
Filed: 1967-04-05
Abstract: 1,159,305. Transferring containers to and from vehicles. W. E. & F. DOBSON Ltd. 5 April, 1968 [5 April, 1967], No. 15506/67. Heading B8E. A load-carrying appliance such as a frame, platform, chassis, container or room is supported by hydraulically extensible legs while a vehicle is driven under it for loading. A container 1 has four hydraulic jack legs 3, 4 pivotally mounted on axes 3b, 4b in recesses 8, 9, 10 at the corners each pair being connected by hydraulic jacks 17, 18 to a central bracket 19. In the container supporting position the jacks 17, 18 are extended to splay the legs outwards and from this position, Fig. 4, the legs are extended to raise the container so that a vehicle can be positioned under it. Contraction of the leg jacks 3, 4 lowers the container 1 on to the vehicle chassis 13 and by further contraction of the jacks 3, 4 and of jacks 17, 18 the container is centred on the chassis 13 by engagement of depending plates 20, 21 and is held down thereon by the leg feet 3d, 4d with the legs in a vertical position in the recesses 8, 9, Fig. 6.
Patent GB-807603-A (GB)
Title: A process for the preparation of mono-vinylaryl hydrocarbons
IPC: C07C4/12
Filed: 1957-05-16
Abstract: Monovinylaryl hydrocarbons are prepared by the demethanation of 2,3-, 2,4-, or 2,5-dimethylisopropylbenzenes, 2,3,5-, 2,4,5- or 2,3,6-trimethylisopropylbenzenes or 1-isopropylnaphthalene, the products being the corresponding substituted styrenes or 1-vinylnaphthalene.  The demethanation is preferably carried out in the presence of 0.5-10 parts by weight of a diluent gas such as steam, nitrogen, carbon dioxide, methane or benzene per part of feedstock, and a demethanating catalyst at 550-750 DEG  C. at a space velocity of 50-500 grams of hydrocarbon per litre of catalyst or per litre of cracking zone if no catalyst is used. Catalysts which are preferred are (1) dehydrogenation catalysts comprising a major proportion of ferric, zinc or magnesium oxide or mixtures thereof; (2) activated or calcined aluminas or activated bauxites; (3) chromic oxide or mixtures thereof with ferric and potassium oxides.  The effluent is condensed and fractionated to recover the product.
Patent GB-416369-A (GB)
Title: Improvements in fittings for drop-leaf tables, and the like
IPC: A47B1/04
Filed: 1934-05-25
Abstract: 416,369. Struts for hinged articles. JENKINS, G. B., Moorgate House, East Dereham, Norfolk. May 25, 1934, No. 15672. [Class 65 (i).] A strut for a table &c. leaf I consists of a metal bar B and flap A hinged together, and supported by a hook-like catch F pivoted on a nail &c. D and pressed outwards by a spiral spring G fitted in a block E. The leaf is released by pressing back the catch E.