baber/WOPTO huggingface dataset:
Patent GB-750743-A (GB)
Title: Trench roller
Inventor: PLAS RALPH JOHN
IPC: E01C19/26
Filed: 1954-05-07
Abstract: 750,743. Trench rollers. BLAW-KNOX CO. May 7, 1954, No. 13451/54. Class 6 (1). A power-driven trench roller comprises a frame 10 having located on one side thereof a pair of longitudinally spaced supporting wheels 21 and on its other side a pair of longitudinally spaced compaction rollers 20, the rollers 20 being vertically fixed and the wheels 21 being vertically adjustable with respect to the frame, each roller being pivoted to the frame, so as to be steerable relative thereto and being coupled with the corresponding opposite wheel so that the roller and wheel can be steered simultaneously. In the form shown the wheels 21 are each vertically slidable in a guide 28 which is pivoted to the frame on a king pin 33 the vertical adjustment of the wheel being controlled by a hydraulic piston and cylinder assembly 29. Each roller 20 rotates on an axle 22 the inner end of which is carried in a bracket 23 pivoted to the frame on a king pin 24 and having on one side an extension 38 the extremity of which is acted upon by the piston of a hydraulic piston and cylinder assembly 40 to effect steering of the roller. Each roller and its opposite wheel are interconnected by a tie bar 35 so that the roller and wheel are steered simultaneously. Valves (not shown) controlling the steering and the vertical adjustment of the wheels are positioned adjacent the operator's seat 19. A water tank 17 is positioned on one side of the frame 10 and is adapted to form a floor for the operator. Means, not shown, are provided for wetting the rollers 20 when necessary. Each roller is fitted with a ring gear which meshes with a pinion rotated by a cross shaft 58 coupled through a chain drive and a differential unit 13 with the engine 12. U.S.A. Specification 2,197,395 is referred to.
Patent GB-543535-A (GB)
Title: Improvements in or relating to chambers for centrifugal spinning pots
IPC: D01D7/02
Filed: 1940-08-27
Abstract: 543,535. Centrifugal machines; casings. ALGEMEENE KUNSTZIJDE UNIE, N.V. Aug. 27, 1940, No. 13491. Convention date, Dec. 1, 1939. [Class 23] The enclosing chamber 17 of a centrifugal spinning pot 11 has a lid 18 or roof provided with downwardly extending ribs 23 arranged radially with regard to the axis of the spinning pot. These ribs tend to reduce the air pressure on the wall of the chamber and so enable the chamber to be sealed by a water seal 22 of comparatively small depth. Where the chamber is bell shaped and rests upon a flat surface, the dome part is provided with the radial ribs. Specification 325,051, [Class 120 (ii)], is referred to.
Patent GB-1270834-A (GB)
Title: Improvements in or relating to thermally operated electric switches
Inventor: WHARTON RAMON FREDERICK
IPC: H01H37/12
Filed: 1969-03-14
Abstract: 1,270,834. Thermal switches. DIAMOND H. CONTROLS Ltd. 11 March, 1970 [14 March, 1969], No. 13491/69. Heading H1N.  A thermal switch of the kind having a capsule 18 which can be moved by a knob 3 to set the operating temperature is provided also with a fixed contact adjustment 27 for calibrating the switch; the fixed contact 29 is carried by a blade 30 attached to a member 25 deformable by the adjusting screw 27 whose head is outside the casing 2 (Fig. 4); a spring 28 prevents backlash. The temperature setting knob 3 rotates a threaded sleeve 5 which is locked against axial movement; stops 10, 11 limit the rotation and a spring-loaded ball 12 locates the knob in one position. The capsule 18, connected by tube 19 to a sensing bulb 20, has a threaded extension 21 which is screwed into sleeve 5 and an extension 22 acting upon a movable contact blade 24. The capsule is prevented from rotating by engaging the pipe 19 with the forked end of a spring clip 32 so that rotation of the knob moves the capsule axially; the clip 32 also urges the screwthreads together to prevent backlash (Fig. 2, not shown). The capsule with its adjustment and the contact assembly are separately mounted in the two halves 1, 2 of the casing.
Patent GB-541160-A (GB)
Title: Improvements in or relating to the stretching and anchorage of cables or bundles of hard steel wires for prestressed reinforced concrete
IPC: B28B23/04
Filed: 1940-08-27
Abstract: 541,160. Reinforced concrete. PRE-STRESSED CONCRETE CO., Ltd., and DODDS, A. K. Aug. 27, 1940, No. 13513. [Class 20 (iv)] Sheathed reinforcing wires d spaced at their ends around a conical hole a<SP>1</SP> in the concrete i are prestressed by hydraulic jacks h placed between the hardened concrete and a bearing plate b provided with holes c in which the wires are secured. Spacing blocks are placed between the concrete and the bearing plate before removing the jacks, and the conical hole a' and the space between the concrete and the bearing plate are filled in with concrete. The hole a<SP>1</SP> has a shuttering a formed of precast concrete or steel. A mild steel ring n is placed around the wires at the apex of the conical shuttering.
Patent GB-135459-A (GB)
IPC: F16C9/04
Abstract: 135,459. Schneider et Cie. Nov. 22, 1918, [Convention date]. Channels in connecting - rods, cranks, and bearings. - Crank-shaft and connecting-rod bearings of engines are lubricated by oil under pressure supplied through a passage 9 to axial and transverse grooves 10, 11 in the crank-shaft bearing. The groove 11 extends through an arc of about 105 degrees, which is rather less than the are of the bearing receiving thrust. Passages 12, 15 convey the oil periodically to similar grooves 13, 14, 16, 17, formed in the connecting-rod bearings.
Patent GB-135502-A (GB)
IPC: H01M4/10
Abstract: 135,502. Burgess Battery Co., (Assignees of Schorger, A. W.). Nov. 19, 1918, [Convention date]. Electrodes; electrolytes. - The manganese depolarizer 4 after being moulded round the carbon rod 3 of a dry battery is dipped into a substance such as plaster of paris which forms a thin porous film or envelope 5 round the depolarizer on setting. The film may be allowed to set while the whole rests on a greased plate or a bed of sand. In the latter case, a quantity of sand 10 adheres to the bottom of the envelope and serves to insulate the electrode from the zinc container 1. The dipped electrode may also be dried suspended in air. This causes the plaster to flow towards the bottom to produce a thicker layer which acts as a separator. An electrolyte, consisting of cereals and zinc and ammonium chlorides which gelatinizes on heating, may be used; or as described in Specification 128,332, a mixture of water and 25.5 per cent of a cereal such as the starch or meal of Indian corn or maize and 36.7 per cent of zinc and ammonium chlorides all at a low temperature may be used, this mixture gelatinizing without subsequent heating. The mixture in which the electrode is dipped may consist of 225 grams plaster of paris and 250 grams water, or 20 grams zinc oxide. 20 grams zinc chloride, and 10 grams water, or 20 grams magnesium oxide, 20 grams magnesium chloride, and 150 grams water. To retard the setting of the plaster of paris when used, a 2 per cent solution of sodium borate may be added to the plaster in the proportion 225 c.c. of the borate solution to 225 grams of the plaster. Other salts or substances such as borax, starch, dextrin, or agar-agar may be used for the same purpose. When starch is used, the zinc chloride in the electrolyte attacks the starch and causes the disruption of the envelope, thus allowing the electrolyte free access to the electrode. The addition of agar-agar produces a semi-permeable membrane.
Patent GB-793175-A (GB)
Title: Improvements in or relating to variable resistances
Inventor: ENGEL ERNEST EMIL OTTO
IPC: H01C1/125
Filed: 1953-07-17
Abstract: 793,175. Variable resistances. ENGEL & GIBBS, Ltd. June 25, 1954 [July 17, 1953], No. 13592/56. Divided out of 793,173, [Group XXXVII]. Class 37. A variable resistor comprises a sealed envelope through which a pair of spaced rods extend, one forming an electrode from which contact is made with a resistance wire wound on the other rod via a conductive liquid which can move in the envelope to control the value of resistance. The Figure shows a variable resistor comprising a glass tube 11 provided with a rod electrode 12 and a second rod 14 of insulating material on which a resistance wire 15 is wound, the end of the wire being connected to a terminal 16. A quantity of conductive liquid 18 such as mercury, or an amalgam of mercury and thallium, as described in Specification 793,174, [Group XXXVII], makes contact between electrode 12 and resistance wire 15. When tube 11 is tilted the liquid 12 moves along the tube and thus varies the resistance between rod 12 and terminal 16. The tube 11 may have one half throughout the length of its inner surface roughened or ground, Fig. 2 (not shown).
Patent GB-108067-A (GB)
Title: Improvements in Journal Bearings.
Inventor: NEWBIGIN HENRY THORNTON
IPC: F16C23/04
Filed: 1916-09-25
Abstract: 108,067. Newbigin, H. T. Sept. 25, 1916. Yielding supports.-In a journal bearing consisting of a number of self-adjusting blocks as described in Specification 23496/11 the blocks c are supported on a yielding mass of steel balls or the like f placed in at least three separate chambers surrounding the bearing. The balls are confined by steel or strips d which are inserted through slots j closed by pins k. The upper half b may be a plain bearing, in which case the balls in the lower half are placed in one or more chambers. The pressure of the balls may be adjusted by screws projecting more or less into the chambers. Oil may be pumped intc the bearing, glands being provided at the ends to prevent its escape.
Patent GB-419667-A (GB)
Title: A process for minimising the colour content in kauri gum resin
IPC: C09F1/00
Filed: 1933-05-10
Abstract: A method for minimizing the colour content in Kauri gum resin consists in treating a solution of the resin with mild alkali, allowing the mixture to settle into a light coloured portion and a dark coloured portion, running off the light coloured portion, and removing the alkali therefrom.  The resin, dissolved in a solvent such as a mixture of benzol and ethyl acetate, is run, via the pipe 2, into the alkali treatment vessel 1 where it is stirred with 1 per cent ammonia solution from the tank 4.  After the mixture has settled into two layers, the upper light coloured layer is passed through the scrubber 7 for the removal of alkali, and then to the evaporator 17. The solvent is recovered in the condenser 22, the purified resin being run off at 25.  The dark coloured lower layer of resin solution, and also the <PICT:0419667/III/1> washings from the scrubber, may be treated in the evaporator 14 for recovery of solvent.  Specifications 11177/85, [Class 95], and 414,716 are referred to.
Patent GB-971656-A (GB)
Title: Improvements in rail vehicles
IPC: B60F1/04
Filed: 1962-04-10
Abstract: 971,656. Electric locomotives; rail vehicle undercarriages. S. H. BINGHAM. April 10, 1962 [June 30, 1961], No. 13788/62. Headings B7H and B7L. A powered railway vehicle comprises a body C (Fig. 2) carried on bogies T which transmit half the body load to flanged guiding wheels 16, 20 running on steel rails SR, and half to pneumatic-tyred driving wheels 28 running on wooden rails WR parallel to the steel rail. Each bogie T is rotatably mounted beneath the body C by a bearing 48 and comprises side members 10 connected by cross members 12. The guiding wheels 20 are mounted on axles 14, 18 journalled in bearing carried by springs 22, 24 connected to the bogie frame. The driving wheels 28 are carried by an axle 26 journalled in bearing carried by springs 30 and are driven by a motor 36 through a universally jointed shaft 38 and transmission gearing 44 which is suspended on the axle 26 and connected to the frame by a link 46. Where no wooden rails are provided or if a tyre becomes deflated the axle 26 is supported struts 34. In another construction (Fig. 6) guiding wheels 54, 58 and driving wheels 104, 108 are mounted on stub shafts 51, 53 and 102, 106 carried by side members 50, 52 which rotatably support the body C by means of coil springs 124, 126 resting on bearings 132, 134 and are flexibly connected by ball-joints 64, 66, 78 to two transverse frameworks 70 linked to a bracket 98 beneath the body C to provide lateral and longitudinal stability. Slotted connections 80 permit the load normally carried by the driving wheels 104, 108 to be transferred to the guiding wheels where no wooden rails are provided or if a tyre is deflated. Motors 110, 112 suspended beneath the body are separately connected to the driving wheels 104, 108 by universally jointed shafts 116, 118 on parallel gear trains contained within a casing 114. In a further construction (Fig. 9) two separately driven axles each carrying a pair of driving wheels are connected to the body C independently of the bogies carrying the guiding wheels. Alternatively two driving wheels on may be provided, each being driven from a separate motor through a reduction gear, a drive shaft and a planetary gear train in the wheel hub.
Patent GB-559902-A (GB)
Title: Gaseous electric discharge device
IPC: H01J17/30
Filed: 1942-10-02
Abstract: 559,902. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. Oct. 2, 1942, No. 13848. Convention date, Oct. 4, 1941. [Class 39 (i)] An electric discharge device comprises an envelope 1 containing a filling of inert gas, a cathode 5 and 6, an anode 8, and a thermionic filamentary cathode 10 for initiating the discharge between the first mentioned cathode and the anode. The latter is surrounded except for its upper end by a glass tube 17. A grid 25 may be provided to control the escape of electrons from cathode 10. A resistance is provided in the connections to cathode 10 to limit the flow of current therethrough and the grid 25 is prevented from operating as a cathode by a high resistance in series therewith. The discharge device may be used in a current operated relay or as a rectifier.
Patent GB-1064425-A (GB)
Title: Emulsion polymerisation process
IPC: C08F214/20
Filed: 1964-04-03
Abstract: Polymer emulsions containing particles of from 0.01 to 2.0 microns are obtained by polymerizing ethylene and/or vinyl fluoride and optionally another monomer, at 50 DEG  to 250 DEG  C. and 1000 to 50,000 p.s.i. in an aqueous medium containing a water-soluble, free radical catalyst, a low micelle potential surfactant as defined in the Specification and a high micelle potential anionic surfactant as defined in the Specification. In examples, the surfactants used are: (Low) the isopropyl amine salt of dodecyl benzene sulphonic acid, the condensation product of stearyl and cetyl alcohols with ethylene oxide, sodium lauryl sulphate, and morpholine dodecylbenzene sulphonate; and (High) Na, K, Li and NH4 bis-(tridecyl) sulphosuccinates, sodium tetradecylsulphate, sodium bis-(octyl) sulphosuccinate, and sodium dodecylbenzenesulphonate.
Patent GB-1175145-A (GB)
Title: The Treatment of Leather and other Porous Collagen Fibre Matrices
IPC: C14C9/00
Filed: 1967-03-23
Abstract: 1,175,145. Proofing leather against oil and water. MINNESOTA MINING & MFG. CO. 23 March, 1967 [28 March, 1966], No. 13856/67. Heading DIP. Leather is treated after tanning with a chromium complex of a carboxylic acid and a urethane adduct of an organic isocyanate and an alcohol. The complex and adduct are applied simultaneously or separately in either order from an aqueous medium. The adduct has a mp below 200‹C, a MW below 10,000, and at least 0.5 urethane groups per 1,000 MW of adduct. It may contain 1-4 urethane groups per adduct molecule. The ratio of complex to adduct is 1/9 to 9/1. The combined weight of complex and adduct is 1.5-5% based on leather. The dynamic water resistance of the treated leather is at least 5,000 Maeser flexes. The carboxylic acid, isocyanate, or alcohol may be fluorinated and the treated leather may contain at least 0.25% of fluorine. The isocyanate may be toluene diisocyanate or polymethylene polyphenyl isocyanate. The aqueous medium may contain a water miscible solvent, e.g. tetrahydrofuran.
Patent GB-541395-A (GB)
Title: Improvements in or relating to wedge block supports particularly for use in coal andlike mines
IPC: E21D15/12
Filed: 1940-09-05
Abstract: 541,395. Wedge chocks for mines. HEWITT, T. H. Sept. 5, 1940, No. 13893. [Class 20 (ii) ] A wedge chock for use in mines either alone or with mine props comprises upper and lower members 1, 4 with parallel outer faces and inclined inner faces and a central wedge member 9, the upper and lower members being constrained by means of interfitting projections and grooves for vertical sliding movement only and the wedge serving to lock the members of the chock. In one form as shown in Fig. 2, the wedge is hollow and encloses interengaging projections 5 from the upper and lower members, these projections having inter-fitting lug and groove connection, 7 and 8, so that they can move only vertically with respect to each other. These projections are further provided with lugs 13 which engage inclined recesses in the hollow of the wedge whereby the parts are retained in assembled position. A link 16 acts as a stop to. prevent disengagement of the parts. In another form as shown in Fig. 10. the inter-engaging projections and grooves, 21 and 22 respectively, on the upper and lower members 18, 19 lie outside the intermediate wedge member 25 and lugs 24 on these members engage grooves in the side of the intermediate member whereby they are retained in assembled position. The grooves 22 may be closed at their outer ends. The chock may be attached to the end of a pit prop 31 by a pivot bolt 32 on one side and a locking pin 33 on the opposite side as shown in Fig. 15.
Patent GB-236356-A (GB)
Title: Improvements appertaining to machines for combing cotton and like fibrous substances
IPC: D01G19/16
Filed: 1924-06-10
Abstract: 236,356. Disley, A. June 10, 1924. Combing-machines. - In a Heilmann or Nasmith combing-machine ha.ving a top nipper blade 3 with the usual projecting lip or finger 6 a blade 5 is mounted on the front of the nipper blade so as to project beyond the lip 6 and to be capable of flexing away from the nipper blade if brought into contact with the comb needles 10 or an obstruction on the comb cylinder 8. To strengthen the blade 5 a number of blades 11 may be superposed each successive blade being shorter than. the one nearer the nipper blade. The blades may be divided by vertical slits, the slits in the additional blades alternating with those in the main blade 5. The lower edge of the blade 5 may be bent at right angles.
Patent GB-941668-A (GB)
Title: Nuclear reactor duct structure
Inventor: ALFILLE LUCIEN
IPC: G21C3/12
Filed: 1960-04-21
Abstract: 941,668. Nuclear reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. April 21,1960 [April 29, 1959], No. 14038/60. Heading G6C. Vitreous silica is used as a guide tube for fuel elements in a nuclear reactor; the silica has a very smooth surface, and flexible and deformable connecting members are put at the ends of the tube, around it, and between different sections of it. Fig. 3 shows a channel of a CO 2 -cooled D 2 O- moderated reactor, comprising a pressure tube 3, thermal insulation 4, and vitreous silica 5. A spring and guide bush 14 are provided at one end to absorb changes in length of the silica; the sections of the silica tube are separated by plastic metal rings 15 of sintered A1 welded to metal foil 16, Fig. 5. Fig. 7 shows an air-cooled, sintered beryllia-moderated reactor having silica guide and pressure tubes 5 supported by plastic metal bush 20 of low carbon stainless steel on steel plate 19 and by a refractory alloy ring 21a and a plastic metal bush in steel plate 23. Fuel is supended from a support 24; fuel and pressure tube are centred by refractory alloy springs. The silica tube may be smooth or finned, opaque or transparent, moulded or drawn; it may be polished mechanically or with hydrogen fluoride. The Specification also describes existing reactors: one has CO 2  coolant, D 2 O moderator, and Mg alloy pressure tubes containing and insulated from fuel element guide tubes, the Mg alloy tubes being enclosed in receiving tubes mounted in the reactor; another has a combined pressure and receiving tube of Be. A beryllia-moderated reactor using sintered U-Mgo fuel, and guide tubes of Al, Mg, Zr and their alloys, Be and stainless steel, are mentioned.
Patent GB-841245-A (GB)
Title: Oxidation of organic compounds
Inventor: O'NEILL WILLIAM ALEXANDER
IPC: C07B35/04
Filed: 1957-05-02
Abstract: In a process for the oxidation, by means of oxygen or an oxygen-containing gas, of organic compounds in a stable liquid medium and in the conjoint presence of bromine and a metal-oxidation catalyst, the reaction is carried out in a silver or a silver-lined vessel, whereby corrosion is obviated.  In an example, paraxylene, acetic acid and a small proportion of cobalt bromide are heated together to 130 DEG  C. in a silver-lined mild-steel autoclave under an oxygen-pressure of 80 p.s.i.g.; and oxygen is fed into the autoclave to maintain this pressure.  The yield of terephthalic acid is 92%.  When an unlined mild-steel autoclave is used, no terephthalic acid is obtained. Specification 833,438 is referred to.ALSO:In a process for the oxidation, by means of oxygen or an oxygen-containing gas, of organic compounds in a stable liquid medium and in the conjoint presence of bromine and a metal-oxidation catalyst, the reaction is carried out in a silver or a silver-lined vessel, e.g. a silver-lined mild-steel autoclave, whereby corrosion is obviated.  Specification 833,438 is referred to.
Patent GB-288588-A (GB)
Title: Improvements in carburetting processes and apparatus
IPC: F02M31/18
Filed: 1927-05-25
Abstract: 288,588. Soc. Anon. Le Carbone. April 13, 1927, [Convention date]. Carburetting. - In a spray carburettor a chemical decomposition of volatile spirit atomized with air is obtained by the action of a catalyst heated to a temperature of 300-400 C., and the products are mixed with the additional air necessary for combustion. The catalyst, in the form of active carbon cylinders e with channels f, is contained in tubes d, which are enclosed by a casing a and exposed to exhaust heat. In a modification, the spirit is vaporized before reaching the catalyst by passage through a group of heated tubes containing copper wire or metal shavings.
Patent GB-1390126-A (GB)
Title: Combination of a failure check circuit and a circuit to be checked
IPC: G01R31/00
Filed: 1972-03-27
Abstract: 1390126 Crash restraint bags HITACHI Ltd and NISSAN JIDOSHA KK 27 March 1972 [26 March 1971] 14155/72 Heading B7B [Also in Division G1] An arrangement for checking whether any of a number of resistors B1-B4, connected in parallel between common points P1, P2, is open-circuited or short-circuited to earth comprises a diode D5-D8 connected in series with each resistor, a high resistance path R from the common point P2 to earth, a generator P.G. for supplying test pulses to the common point P1, and a detector A2 which checks that the test pulses appear at every one of the junctions P7-P10 between each resistor and diode. In a modification which enables a particular faulty resistor to be identified and also checks diodes D5-D8, further diodes D1-D4 are included, frequency dividers F1-F4 apply test pulses in turn to each of the junctions P3-P6 between the resistors and the further diodes, and a detector A1 checks that each applied pulse also appears at the common point P2. The resistors B1-B4 may form part of a crash restraint air or gas bag system in a vehicle, the heat generated in the resistors when crash-detect switches S1 S2 close firing explosives to remove obstructions disposed between gas cylinders and the air bags. Alternatively they may form part of a fire alarm system.