baber/WOPTO huggingface dataset:
Patent GB-251170-A (GB)
Title: Improvements in and relating to electric flue gas testing apparatus
IPC: G01N27/18
Filed: 1925-10-12
Abstract: 251,170. Wichnevsky, G. Sokolow-. Oct. 12, 1925. Ribbon resistances, mounted on frames.-The conductor in a gas cell for electrically testing flue gases is in the form of a metal strip 23 which is doubled over several times and placed under tension in a frame which can be placed in position in the gas chamber. The frame consists of insulating plates 33, 34 and rods 35, the ends of the strips being connected to lead-in conductors which pass through insulating sleeves 39 connected to a cover member 38. The strip passes round headed screws 36 by means of which it can be placed under tension. Two strips may be mounted in the same frame, as shown in Fig. 4, for connection in opposite arms of a wheatstone bridge, the frame carrying these strips being inserted in the chamber 18 through which the gas under test is passed. The remaining arms of the bridge are constituted by similar strips in an air chamber.
Patent GB-289334-A (GB)
Title: Improvements in luminous signs
IPC: G09F7/02
Filed: 1927-09-27
Abstract: 289,334. Chiarella, U. Sept. 27, 1927. Loose-letter and like signs.-Changeable symbol elements supported between guides comprise a transparent letter &c. 4, Fig. 2, which is mounted on a block 1, Fig. 1, of similar shape carrying one or more electric lamps 3. The block 1 is fixed on a substantially rectangular base 2 provided with connecting wires and contacts 5, 6 which may co-operate with contacts on the guides. The letters 4 may be of celluloid or glass, and the block 1 of wood. A transformer is fitted if necessary.
Patent GB-699589-A (GB)
Title: Improvements connected with meat mincing machines
IPC: B02C18/30
Filed: 1951-11-02
Abstract: 699,589. Mincers. CRYPTO, Ltd., and WILSON, E. P. Sept. 16, 1952 [Nov. 2, 1951], No. 25696/51. Class 28 (ii). Cleaning of a mincer G and its motor A and gearbox B is facilitated by making flat the upper half C of the motor- and-gear cover to support the feed pan F which can be easily removed by slightly raising its mincer end so that its depending skirt I clears the motor cover K and then sliding it endwise to disengage its hook part L from a slot M in the upper part C<SP>1</SP> of the half cover C. The upper cover C of the motor &c. can then be removed by unscrewing a thumb screw N located in a depression C<SP>2</SP> in C<SP>1</SP>. The feed pan rests at its motor end on adjustable studs H in the upper cover C, which is positioned on the lower half cover D by diagonal dowels E.
Patent GB-631852-A (GB)
Title: Improvements in jointing means for pipe, hose and like couplings
IPC: F16L17/02
Filed: 1947-09-23
Abstract: 631,852. Joint making packing; stuntng box substitutes. BUHAYAR, E. S. Sept. 23, 1947, No. 25822. [Classes 122(iii) and 122(v)] [Also in Group XXVIII] A resilient packing ring for a pipe coupling comprising spigot and socket members 1, 2 (see Group XXVIII), is triangular in cross-section and loosely housed in a correspondingly shaped annular groove 11. The ring rocks following a pressure drop due to flow of fluid and takes up a sealing position.
Patent GB-258966-A (GB)
Abstract: 258,966. Shaw, W., Williamson, J. S., and Mair, H. July 6, 1925. No Patent granted (Sealing fee not paid). Shoots.-Apparatus for use in feeding stone,. ores, and other materials to crushers, conveyers or the like, arranged to control the rush of materials when tipped on to shoots from wagons, comprises a drum 1 rotating on an horizontal axis above the delivery end of a shoot 2 and carrying a set of closely-spaced independent endless chains 6 hanging loosely from the drum to form a curtain or apron obstructing the delivery end of the shoot and adapted to yield under the pressure of the material descending the shoot and gradual'y to arrest the material. The shaft 3 of the drum 1 may be driven through gearing 7 and a clutch 9 from a motor 8. In use, the material tipped' on to the shoot 2 having been arrested by the chains 6, the drum 2 is set in rotation in the direction such that the flight of the chains 6 adjacent the shoot will travel in the same direction as the material and thus sweep it into the inlet 10 of the crusher &c. The drum may be rotatable in either direction. Reference has been directed by the Comptroller to Specification 246,964.
Patent GB-1276039-A (GB)
Title: Method for the simultaneous preparation of a diolefin and an olefin
IPC: C07D301/19
Filed: 1970-05-29
Abstract: 1276039 Simultaneous hydrocarbon preparation COMPAGNIE FRANCAISE DE RAFFINAGE 29 May 1970 [30 May 1969] 25911/70 Heading C5E A diolefin of carbon structure A, e.g. isoprene, and another hydrocarbon which is either an olefin or an, alkenyl benzene and is of carbon structure B, e.g: isobutylene or styrene, are prepared simultaneously by the following process sequence: (a) a first saturated hydrocarbon of structure A and a second saturated hydrocarbon or alkyl benzene of structure B are separately contacted with molecular oxygen under peroxidation conditions to form hydroperoxides A and B; (b) hydroperoxides A and B are reacted, either separately or together, with an olefin of structure A in the presence of a catalyst, e.g. molybdenum naphthenate, and optionally in the presence of water, to form an alpha-glycol or alpha-epoxide A and alcohols A and B plus ketone by-products; (c) converting the alphaglycol or alpha-epoxide A to desired diolefin A by dehydration or isomerization-dehydration routes (see below); (d) dehydrating alcohol A, produced in (b), to form olefin A which is recycled to step (b); (e) dehydrating alcohol B to give desired end-product olefin or alkenyl benzene B; and (f) reducing the ketone byproducts to alcohols and then dehydrating these to olefin A which is recycled. The dehydration step- (c) may be effected in a single step using lithium phosphate catalyst; or the epoxide or glycol may be converted to a monoacetate, which is then pyrolyzed to give an olefin alcohol which is subsequently dehydrated, e.g. over thorium oxide. Dehydration steps (d), (e) and in (f) may be performed all together, e.g. over thorium oxide. The reduction step (f) may be effected by H 2  over Ni/pumice stone cataylst. Two detailed flow-sheets are given, the first describing the production of isoprene and isobutylene from isopentane and isobutane, and the second the production of isoprene and styrene from isopentane and ethylbenzene.
Patent GB-347996-A (GB)
IPC: G02B13/00
Filed: 1930-08-30
Abstract: 347,996. Lenses. ZEISS, C., Carl- Zeiss-Strasse, Jena, Germany. Aug. 30, 1930, No. 25935. Convention date, Sept. 10, 1929. [Class 97 (i).] A photographic lens of the Cooke type corrected for spherical and chromatic aberrations, coma, and astigmatism comprises a divergent element III placed between two convergent elements II, IV and a further convergent element I in front of the said three elements, the refractive index of each of the convergent elements being less than 1À52 and the vertex length of the combination being greater than one third of the focal length. The nu-value of each convergent lens is greater than 63 and that of the divergent lens is less than 37À5. Numerical data are given for the example shown, having a focal length of 200 cm. and an aperture of 40 cm., this combination being suitable for astronomical purposes.
Patent GB-827111-A (GB)
Title: Joint for pressure suits
Inventor: CRICK JOHN SIDNEY
IPC: A62B17/00
Filed: 1957-08-16
Abstract: 827,111. Couplings for tubular members. BRITISH OXYGEN CO. Ltd. Aug. 6, 1958 [Aug. 16, 1957], No. 25975/57. Class 99(1). In a joint between separable parts, e.g. the glove and sleeve 13, 10 of a double-walled pressure suit of synthetic fabric and such as is used by aircrew personnel for high altitudes and high speed flight, a resilient radially deformable inner clamping ring assembly 14 is secured to the sleeve 10 and is radially deformed from an unstressed condition when coupled for operation, flexible gas supply conduits 25, 30 being compressed between portions of the assembly and obturated when the latter is unstressed and being relieved of pressure and opened when the assembly is deformed. As shown, the sleeve 10 terminates in an inflatable cuff-like bladder 11 in sealing engagement with a wrist bladder 12 in the glove 13. The assembly 14 consists of arcuate members 15,16 of moulded plastic, with one pair of adjacent ends secured to a flexible spring strip 18, the members 15, 16 each having a circumferential channel 17 for reception of an outer clamping ring assembly 20 mounted on the glove 13 and comprising arcuate members 21, 22 similarly secured to a spring strip 24 and engaging the members 15, 16 by spring clips 23. The gas conduits 25, 30 which connect the sleeve 10 to the glove 13 and the bladder 11 to the bladder 12 respectively extend across the spring strip 18 and are squeezed between the latter and coacting bars 29, 39 projecting from the members 15, 16 when the assembly is in the unstressed condition, while when the assembly is in the operative deformed condition the bars 29, 39 and the spring strip 18 are moved apart and the conduits relieved of pressure. For depressurizing the glove 13 the conduit 25 is obturated independently by a screw 36 on the member 16. In a modification, not shown, the projecting bars are replaced by integral end portions of the members 15, 16.
Patent GB-860896-A (GB)
Title: Improvements in or relating to alumina
Inventor: CSORDAS ISTVAN
IPC: C01F7/428
Filed: 1957-08-20
Abstract: a -Alumina is prepared by exposing amalgamated aluminium to oxygen and water vapour, removing the hydrated alumina formed, dehydrating by heating to form g -alumina, and converting the g -alumina to a -alumina by further heating, preferably in an oxidizing atmosphere. The formation of g -alumina is preferably effected at 1000 DEG  to 1100 DEG  C., and the conversion to a -alumina at 1400 DEG  to 1600 DEG  C.  To remove coarse particles, the g -alumina may be sieved or subjected to aeroflotation.  The aluminium body may be amalgamated by contacting with a mercuric salt solution, for example the chloride or cyanide, after which the body is rinsed and dried.  The amalgamated body may then be contacted with a stream of air containing water vapour, preferably at a temperature of 25 DEG  to 75 DEG  C.-The body may be in the form of a block through which holes are bored, a liquid coolant passing either through these holes or through pipes which are inserted in these holes.  The alpha alumina product may be ground in a ball mill, and may be used for making ceramic articles, for example metal cutting tools or wire-drawing dies.  The particle size of the a -alumina is preferably below 10 microns, with an average particle size of 1 micron or less.
Patent GB-339304-A (GB)
Title: Improvements in and relating to walls of buildings
IPC: E04B2/56
Filed: 1929-08-29
Abstract: 339,304. Triggs, W. W., (B÷hler & Co., Akt.-Ges., Geb.). Aug. 29, 1929. Walls.-Sheet metal b is secured to the inside faces of supports a. Fig. 1, and insulating material c, such as plaster or porous concrete, is applied on the outside of the supports, and may be in the form of plates and be coated with plaster d. The metal sheets b are covered with similar insulating material f, and strips of cork or peat e may be placed over the inner faces of the supports. The space k may be filled with insulating material g. In the modification shown in Fig. 2, wire fabric h is secured to the outside of the supports, and the porous concrete or other filling g is cast in situ. Wire fabric i may also be secured on the inner face. The supports may be iron, timber, concrete, or other material.
Patent GB-160124-A (GB)
Title: Improvements in and relating to lubricating systems for engines
IPC: F01M1/04
Filed: 1919-11-04
Abstract: 160,124. Russell, E. L. Nov. 4, 1919. Oil, catching and removing.- In an internal-combustion engine forming part of a self-contained electric power unit as described in Specification 158,361, [Class 35, Dynamoelectric generators &c.], escape of oil from the crank-shaft bearing 34 on to the blades 83 of a fan is prevented by an oil-throwing ring 141 mounted on the hub of a fly-wheel 58. Oil is thrown into a chamber 140 and flows away through a pipe 145 extending to below the oil level in the crank chamber 22. Specifications 18344/11 and 159,805, [both in Class 7 (vi), Internal-combustion engines, Valves &c. for], are referred to.
Patent GB-649261-A (GB)
Title: Coated paper sheets
IPC: D21H19/22
Filed: 1947-10-02
Abstract: A coating composition for kraft paper sheets (see Group VIII), contains 50-80 per cent of asphalt mineral rubber (elaterite) having a melting point of 320-350 DEG  F., 10-25 per cent of a coumarone-indene resin, the coumarone and indene being obtained from solvent naphtha fractions of coal tar at 280-340 DEG  F., 2-10 per cent of a rosin plasticizer consisting of methyl ester of rosin or hydrogenated methyl ester of rosin, and 4-7 per cent paraffin wax having a melting point between 122 DEG  and 150 DEG  F.  The above constituents form at least about 99 per cent by weight of the composition which may also include 0.5-1 per cent copper naphthenate as a fungicide.ALSO:A coating composition for kraft paper sheets (see Group VIII), contains 50-80 per cent of asphalt mineral rubber (elaterite) having a melting point of 320-350 DEG  F., 10-25 per cent of a coumarone-indene resin, the coumarone and indene being obtained from solvent naphtha fractions of coal tar at 280-340 DEG  F., 2-10 per cent of a rosin plasticizer consisting of methyl ester of rosin or hydrogenated methyl ester of rosin, and 4-7 per cent paraffin wax having a melting point between 122 DEG  and 150 DEG  F.  The above constituents form at least about 99 per cent by weight of the composition which may also include 0.5-1 per cent copper naphthenate as a fungicide.
Patent GB-903989-A (GB)
Title: Improvements in or relating to packs holding volatile liquid pesticides
Inventor: WHITNEY GEOFFREY FITZWALTER HE
IPC: A01M1/20
Filed: 1957-08-23
Abstract: 903,989. Pack containing volatile pesticides. AEROVAP HOLDINGS Ltd. Aug. 25, 1958 [Aug. 23, 1957], No. 26632/57. Class 81 (1). A pack holding a volatile pesticide for dissemination into the atmosphere or upon a surface comprises an elongated tubular casing having gas impervious walls and openings at each end and containing a foraminous non- volatile structure having deposited upon its surfaces a volatile liquid pesticide held by surface tension so that on passing a forced draught of a gaseous medium through the foramina at normal or elevated temperature the liquid is volatilized into the gas stream and is thereby disseminated. The liquid may be diazinon, allethsin or a solution of a solid in a liquid, e.g. DDT in diazinon. The foraminous material may be fibrous, e.g. glass wool, cotton wool, a fluted card, crÛped paper, embossed paper, a roll of paper in which the convolutions are separated to provide passages therebetween, granules or particles which are themselves foraminous or impervious, e.g. vermiculite or glass beads, material of cellular structure, e.g. sintered glass, an expanded synthetic resin, or a plurality of tubular members which may be serpentine in shape. The Figure shows a cylindrical pack held in container 1 which is of aluminium or stout card, the foraminous material being fluted card 4 interleaved with flat card 5. The pack may have an adjustable outlet, e.g. an iris diaphragm to vary the velocity of the airstream. Specifications 903,291 and 903,292 are referred to.
Patent GB-1468259-A (GB)
Title: Maximum demand comparitor
IPC: G01R21/133
Filed: 1975-06-09
Abstract: 1468259 Counting electric pulses; electricity meters A J COLEMAN 9 June 1975 [17 June 1974 23 Sept 1974] 26648/74 and 41394/74 Heading G4D A predetermined counter is employed to prevent an electrical load exceeding a preset maximum demand; the counter counts pulses generated for each increment of electricity consumed until the counter is reset by an external time signal or the count exceeds a value determined by the preset maximum demand when it issues a signal which can be used to disconnect or reduce the load. In a first embodiment (Fig. 1, not shown) the maximum demand is set by a set of selector switches, comparators comparing the value set in the switches with that in the counter. In a second embodiment (Fig. 2, not shown) the set of switches selects the rate of an oxilator whose output pulses are counted by another counter to provide a steadily increasing maximum; if the count in the main counter exceeds that in the other the comparator issues the signal. A further counter records the actual maximum demand.
Patent GB-1409793-A (GB)
Title: Light emissive diode to optical fibre coupling
IPC: G02B6/42
Filed: 1972-06-08
Abstract: 1409793 Electroluminescence STANDARD TELEPHONES & CABLES Ltd 24 May 1973 [8 June 1972] 26767/72 Heading C4S [Also in Division F4] A non-coherent P-N diode lamp 2 (e.g. GaAs) is secured to the smaller end face of a tapered region of an optical fibre. Emission may be infra red as well as visible. In Fig. 1, tapered optical fibre 5 of arsenic trisulphide couples core 3 of parallel sided multi-mode fibre, contact 6 is Au adjacent electrically conductive heat sink 7, and annular silica layer 8 confines current flow to a small area. The other contact is Au ring 10, flying lead 11, and pin 12 with insulator 13. The device is encapsulated in resin 14 which may be raised to broken line 14A to partially incorporate fibre 4. The central GaAs region is etched to bring coupler 4 close to the P-N junction. Dimensions are given, and refractive index and critical angles considered. Fig. 3 (not shown), includes parallel sided fibre (20) with tapered end regions (21).
Patent GB-427391-A (GB)
Title: Improvements relating to gem or like settings in jewellery
IPC: A44C17/02
Filed: 1934-09-28
Abstract: 427,391. Jewellery. JACKSON, S., 55, Finchley Road, St. John's Wood, London. Sept. 28, 1934, No. 26771/33. [Class 43] A mounting for detachably securing gems in rings, consists of a supporting tray having a rectangular three-sided wall 13 with inturned upper edges 14 and a pivoted wall 16 inwardly flanged at 16A which swings into and out of engagement with the gem 15, or two complementary tray parts 22 with inturned upstanding walls 23, which can be sprung apart against the resilience of the ring 12, to insert the gem. In the first construction, a pivoted latch 18 engages the recess between lugs 20 to secure the pivoted side 16.
Patent GB-243511-A (GB)
Title: Improvement in thermostatic device and method of and apparatus for making the same
IPC: G01K5/68
Filed: 1924-11-10
Abstract: 243,511. Spencer, J. A. Nov. 10, 1924. Thermostats.-In making a bi-metallic thermostatic element, the metal is clamped and heated to a temperature above its working range, the clamping preventing change of shape upon change of temperature. The method is particularly applicable to disc-shaped elements which alter their shape suddenly at a critical temperature. The clamp comprises a cylinder 1 adapted to receive a number of discs 3 separated by spacers 5, the discs being maintained flat by a clamping screw 11. The clamp is then placed in an oven and heated to about 450‹ C. for one hour. When the discs are released, they are concave on the side having the higher expansion coefficient, and operate more uniformly when in use. If the discs have a central aperture, the clamping bolt may pass through them. The discs are then shaped in a press, Fig. 7, between dies 17, 19, the movement of the upper die being limited by washers 28 and a ring 30. The temperature during pressing is preferably 100-150‹ C. above that at which the discs are to be used. After pressing, the discs are heated on a hot plate or oven to 50-100‹ C. above the maximum temperature in use, for 10-30 minutes. Specifications 19011/09 and 178,103 are referred to.
Patent GB-778274-A (GB)
Title: Improvements in or relating to receptacles of light metal for liquefied gas, particularly adapted for recharging liquefied gas lighters
IPC: F23Q2/52
Filed: 1955-09-20
Abstract: 778,274. Making hollow-ware. NATIONALE SOC. ANON. Sept. 20, 1955 [Oct. 2, 1954], No. 26818/55. Class 83 (2). [Also in Group XXVIII] A receptacle for liquified gas adapted for charging a liquified gas lighter is made by forming a cylindrical part with an open end of a wall thickness greater than at the other end and closing the open end by a second part, the parts interfitting and being secured together by an organic material so positioned as to be urged principally by a shearing action. An extruded aluminium tube 1, having its closed end formed as at 2 with an orifice 3 for the filling and outflow of the liquified gas, has its wall thicker at the open end. A closing member 5 is inserted into open end and secured therein by a synthetic resin 6, the arrangement being such that the thin part of the wall of the tube 1 splits before the resin 6 shears. The member 5 may alternatively be secured with its rounded base outwards instead of inwards. In a modification, Fig. 2 (not shown), the tube 1 fits into, and is secured to, the closing member 5. In another modification, Fig. 3, the tube 1 with a closed end 8 and a thick-walled open end is closed by a part 9 having an orifice 3, secured by a synthetic resin. Alternatively, Fig. 4 (not shown), the part 9 surrounds the open end of the tube 1. The tube may be of polygonal, e.g. rectangular cross-section. The adhesive may be a resin of the ethoxyline class or a gum with a cellulose base.
Patent GB-897658-A (GB)
Title: Improvements in two-wheeled trailers
IPC: B60S9/04
Filed: 1957-08-26
Abstract: 897,658. Road vehicle draw gear; rest bars. TOMKINS, J. W. Sept. 11, 1958 [Aug. 26, 1957]. No. 26917/57. Classes 103(5) and 108(2). A two-wheeled trailer comprises a Y- shaped draw bar 4 pivoted at points 3 to side irons 2 on the body and engageable with the chassis in the towing position to support the front end of the trailer, a spring 13 attached to the draw bar and to an arm 11 to support the unbalanced weight of the draw bar, an inverted U-shaped rest bar member 7 pivoted to the body in brackets 6 and having an operating handle 8, a crossbar 10 which extends beyond the body to provide stops for the rest bar legs 7a, and a hook 12 on the arm 11 which may latch the bar 8 when it has been moved downwardly to raise the shoes 9 from the ground. The draw bar 4 is provided with a lifting handle 15. Side members 14 absorb side thrust from the forked arms of the draw bar, and further staying of the draw bar may be provided by telescopic arms (not shown) connected between the trailer body and the arms of the Y.
Patent GB-1037907-A (GB)
Title: Polyurethane substances
IPC: C08G18/10
Filed: 1965-06-25
Abstract: A polyurethane sponge having at least 80% of the cells closed and having a density of 10-20 lbs./cu. ft. is prepared by curing an isocyanate terminated polyalkylene ether polyurethane with an aromatic diamine in the presence of, as blowing agent, an inert liquid which boils under the curing conditions, so that the resulting sponge becomes non-sticky (defined) within a half to three minutes. In Example (1), the reaction product of polytetramethylene-ether glycol of M.W. 1000 and tolylene diisocyanate was mixed with tolylene diisocyanate, 4,41 - methylene - bis - (o - chloroaniline), a siloxane surfactant, adipic acid catalyst and trichlorofluoromethane. The froth was poured into a mould and became nonsticky in 40 seconds. After curing for 1 hour at 120 DEG  C., a product of density 14.1 lbs. per cu. ft. was obtained.