baber/WOPTO huggingface dataset:
Patent GB-447058-A (GB)
Title: Improvements in or relating to the production of benzene hexachloride
IPC: C07C17/02
Filed: 1934-11-07
Abstract: Benzene hexachloride is produced by treating with chlorine in presence of water a distillate of boiling range 75--90 DEG  C., obtained from the heat treatment of mixtures of coal and oil.  The oil to be admixed with the coal may be a petroleum oil, a creosote oil, a coal oil or an oil resulting from the distillation of any of these oils mixed with coal.  In an example, the chlorination is effected by bubbling chlorine through the distillate in the presence of a layer of water, the reaction vessel being cooled with ice-water. The benzene hexachloride is separated off and recrystallized from methylated spirit.  The Provisional Specification includes the use of a distillate of boiling-range 75--120 DEG  C.  Specifications 448,028 and 448,029 are referred to.
Patent GB-269451-A (GB)
Title: Improvements in or relating to the manufacture of metal rods or tubes
IPC: B21C23/22
Filed: 1926-12-20
Abstract: 269,451. Bosch Akt.-Ges., R. April 19,1926, [Convention date]. Squirting. - In the extrusion of sheathed rods or tubes from heated metals, blocks of the two metals are first roughly shaped and then inserted in the press in such a position that they partly engage one within the other. In making a rod with a thin sheath the sheathing metal is formed into a ring B with a large conical hole into which fits a corresponding cone on the end of the block A which is to form the body of the rod when extruded through the die c. In making a tube with an internal sheath a cylinder c, Fig. 2, with a conical. hole is engaged by the stem of a hollow block D through which the core g passes. The thickness of the sheath can be regulated by varyino the relative size of the blocks. Rods and tubes of rectangular or other cross-section may be produced.
Patent GB-852464-A (GB)
Title: Automatic apparatus for measuring arterial blood pressure
IPC: A61B5/022
Filed: 1956-10-23
Abstract: 852,464. Sphygmomanometers. GHIGINI, R. Oct. 23, 1956, No. 32204/56. Class 81(2) Apparatus for measuring arterial blood pressure comprises an armlet 41, an oscillometer including an apertured disc 32 which is revolvable in response to pressure variations created by arterial blood pressure in the armlet and which projects between a photoelectric cell 35 and a light source 34 so that the cell produces electric impulses as the disc revolves, a compressor 18 for supplying air to the armlet and the oscillometer, and an amplifier for the impulses and means for converting the amplified impulses into sound signals. The disc 32 which has radial slots around its periphery through which light reaches the photoelectric cell 35 is rotated in response to linear displacements due to changes in pressure in an oscillometer bellows 19 which is connected to the armlet 41 comprising two chambers 111, 112. The apparatus is set into operation by the insertion of a weight 92 (Fig. 8) into a tubular guide 91 of a switch device. The weight rests in the guide on an arm 94 which carries a moving contact 95 and on a plate 93 which extends into the guide from a bellows 100. The moving contact 95 closes against a fixed contact 96 in the circuit of the compressor 18 (Fig. 9) which then commences to supply air by way of a cock 80 to cylinders 57, 58. Pistons 55, 56 which are connected by a rack and a ratchet and pawl mechanism to rollers carrying armlet tightening bands, are then displaced in the cylinders to tighten the armlet on the patients' arm. Air is also supplied to a cylinder 88 to displace a piston 84 which, at maximum displacement, changes over the cock 80 so that air is cut off from the armlet tightening cylinders 57, 58 and is permitted to inflate the armlet chambers, the oscillometer bellows and the switch bellows 100. At a predetermined maximum pressure, expansion of the switch bellows 100 is sufficient to displace the plate 93 from the guide 91 so that the weight 92 falls and the contacts 95, 96 open to stop the compressor. At the same time contacts 97, 98 which are coupled to the compressor contacts are closed, thus completing a circuit through the photoelectric cell so that blood pressure measurements may be made. A manometer 105 indicates the pressure in the oscillometer and the armlet. The pressure in the air circuit gradually runs down through a valve (not shown). The patient's arm is released and the cock 80 and the pistons are returned to their starting positions by operating a lever which releases the ratchet and pawl mechanism to free the armlet and which opens relief valves 109, 110 to reduce pressure in the cylinders.
Patent GB-1427001-A (GB)
Title: Process for the preparation of so-called -cold-cured- felxible polyurethane foams
IPC: C08J9/00
Filed: 1973-07-20
Abstract: 1427001 Polyurethane foams RHONEPOULENC SA 20 July 1973 [20 July 1972] 32283/75 Divided out of 1426783 Headings C3R and C3S In a process for the production of a "coldcured" flexible polyurethane foam by pouring a foamable composition into a mould, closing the mould, forming the foam and releasing it from the mould, the foamable composition contains 0À1 to 5% by weight of an organosilicon compound of the general formula wherein R<SP>1</SP> represents a hydrogen atom, a monovalent C 1 -C 8  hydrocarbon or C 1 -C 3  halohydrocarbon group, and G represents a divalent hydrocarbon group of 1-15 carbon atoms, n is 0 or 1 and b is 1 or 2. The organosilicon compounds can be prepared by the cohydrolysis of organochlorosilanes optionally in the presence of an organic solvent. Preferably they are prepared by reacting the organochlorosilanes with C 4 -C 8  tertiary aliphatic alcohols alone or in admixture with C 1 -C 4  primary or secondary alcohols. In the examples the following organosilicon compounds and are prepared by reacting a mixture of (CH 3 ) 3 SiCl and either or or with tertiary amyl alcohol and isopropyl alcohol in the presence of toluene. The resulting organosilicon compounds are added to polyurethane foamable compositions comprising a polyether triol of M. wt. 4800, a polyether glycol of M. wt. 800, water, dimethylcyclohexylamine, triethylenediamine, fluorortrichloromethane an 80/20 isomeric mixture of toluene diisocyanate, and p,p<SP>1</SP>-diisocyanatodiphenylmethane. The resulting foams have a thin light porous surface skin.
Patent GB-1327286-A (GB)
Title: Walking beam furnace
IPC: F27D3/02
Filed: 1971-07-09
Abstract: 1327286 Walking beam conveyer furnaces TABOUGNAR AB 9 July 1971 [4 Nov 1970] 32360/71 Heading F4B In a walking beam conveyer furnace of the type in which the operative beams 4 rest in horizontal channels 5 defined by supporting ridges 2, the ridges are connected to covered channels 6 by slots 9 extending obliquely and upwardly towards the beams in the direction of movement of the charge. The channels 6 contain anciliary burners 10 supplying the hot gases which pass through said slots. An alternative construction shown on the right hand side of the drawing has open topped channels 6, the hot gases within the furnace being induced to pass through the slots. In a further embodiment (Fig. 3) the slots 9 are replaced by circular ports in the ridges. With the second embodiment waste gases could be withdrawn from the furnace and recirculated through the channels 6.
Patent GB-534004-A (GB)
Title: Improvements relating to the starting of gaseous electric discharge devices
IPC: H05B41/04
Filed: 1939-12-18
Abstract: 534,004. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 18, 1939, No. 32405. Convention date, Dec. 20, 1938. [Class 39 (i)] [Also in Group XXXV] In an electric discharge lamp 1 wherein at least one electrode is preheated for starting, this electrode 2 is connected at one end to the source 4 through the winding 9 of a reactance and at the other end to the other electrode 3 through additional turns 15 of the reactance ; with a condenser 8 in series with the reactance the turns 9, 15 are additive but without a condenser these turns are opposed. A thermal switch is included in the circuit; this comprises a bimetallic switch 13 with a heating resistance 12. The added turns 15 provide for greater heating of the electrode 2. An electromagnetic switch may be used instead of the thermal switch. The lamp may have a coating of fluorescent material.
Patent GB-968038-A (GB)
Title: Improvements in or relating to manometers
IPC: G01L7/18
Filed: 1962-08-23
Abstract: 968,038. Manometers. A. C. WILSON, and AIRFLOW DEVELOPMENT Ltd. Aug. 19, 1963 [Aug. 23, 1962], No. 32448/62. Heading G1L. A manometer comprises a face plate 1 composed entirely or partly of clear synthetic plastics material and an opposed backing plate 2 which together define a liquid reservoir 6, or pressure indicating tube 5 and a liquid overflow chamber 3. The backing plate is preferably an opaque moulding from plastics material and is secured to the face plate by adhesive. An inlet 4 leads to the overflow chamber 3, which is in cummunication with the tube 5 and reservoir 6. The reservoir 6 has a vent 7 at one end of the manometer. The backing plate 2 is formed with a projection 13 which reduces the cross-sectional area of the tube 5, and a further projection 14 which compensates for changes in the surface area of the liquid in the reservoir 6 with rise and fall of the liquid where it comes into contact with the sloping underside of the tube 5. The tube forming cavity of the face plate is formed with a rib 8 to magnify the liquid in the tube 5, and a scale plate is provided adjacent the rib 8, and is adjustable by use of a knurled screw 11.
Patent GB-537478-A (GB)
Title: Improvements relating to aircraft sustaining rotors
IPC: B64C27/02
Filed: 1939-12-19
Abstract: 537,478. Aircraft with rotary wing systems. CIERVA AUTOGIRO CO., Ltd. Dec. 19, 1939, No. 32526. Convention date, Dec. 22, 1938. [Class 4] A sustaining rotor for an aircraft comprises a single blade and a substantially non-lifting counterweight pivoted about a flapping axis or axes to a hub which is tiltable for controlling the lift line of the rotor, the blade being pivoted also about its longitudinal axis and provided with means reactive between the blade and its support to vary its angle of incidence. In one form the blade 28 and the counterweight 35 are mounted on a common frame 33 pivoted to a hub 21 about a transverse axis passing through the centre of :a universal joint by which the hub is mounted upon a fixed part of the structure. The blade 28 is mounted on bearings 32, Fig. 3, upon a shaft 31 on the frame 33 and has an arm 39 movable, to change the incidence of the blade, by a piston in a cylinder 42 supplied with pressure fluid through a pipe 43 having a rotary fluid tight joint with a pipe 45. A spring 46 urges the blade towards its auto-rotative position and its incidence is increased for a jump take-off by supplying fluid pressure to the cylinder 42. The hub 21 is driven for starting by gears 23, 24 and an inclined shaft 26 having a universal joint 27. Stops 37, 38 limit the downward movements of the blade and weight, the stop 38 being at a lower level than the stop 37. In a modification the weight 35 is mounted on a longer arm separately pivoted about a transverse axis to the hub, and the blade is pivoted about a transverse axis or about a horizontal axis inclined to the axis of the blade making an acute angle therewith in the direction of rotation. In the latter case the centre of gravity of the weight is offset forwardly to compensate for the forward movement of the centre of gravity of the blade during coning. In another modification both the blade and the counter weight are separately pivoted about the same inclined axis. The hub is tiltable about its universal joint to control the direction of thrust. Specifications 393,976, 420,322 and 483,376 are referred to.
Patent GB-618862-A (GB)
Title: Elastic coupling between two co-axial shafts
IPC: F16D3/50
Filed: 1945-12-03
Abstract: 618,862. Shaft coupling; linkwork. DOUSSAIN, R. Dec. 3, 1945, No. 32658. Convention date, March 27, 1942. [Classes 80 (ii) and 80 (iii)] [Also in Group XIX] A coupling for coaxial shafts comprises an elastic ring so connected to the shafts that the load transmitted by the coupling tends to produce radial deformation of the ring. This deformation may be measured to assess the torque or end load transmitted by the shafts. Figs. 1, 2 show a torque deformable coupling in which driving and driven shafts 1, 2 have lugs 6a, 8a which are connected to the members 5a, 5b of the flexible ring 3 by connecting rods 4a, 4b, 7a, 7b, pivoted about axes parallel to the axis of the shafts, so that transmission of torque by the coupling results in either tension or compression in the rods with corresponding radial contraction or expansion of the ring 3. As applied for measurement of axial shaft loads, as shown in Fig. 5, the connecting rods 16a, 16b, 17a, 17b are pivoted about axes perpendicular to the axis of the shafts and torque is transmitted by a tongue 15. The Specification as open to inspection under Sect. 91 comprises also an embodiment in which the connecting rods are counterbalanced by weights and the deformation of the ring is measured electrically. This subject-matter does not appear in the Specification as accepted.
Patent GB-1180386-A (GB)
Title: Synthetic Lubricants for Aero Gas Turbines
Inventor: BLANCHARD PETER MICHAEL
IPC: C10M169/04
Filed: 1966-07-21
Abstract: 1,180,386. Lubricants. BRITISH PETROLEUM CO. Ltd. 10 July, 1967 [21 July, 1966], No. 32739/66. Heading C5F. A lubricating composition comprises an ester basestock consisting of a liquid neutral polyester that has been prepared by reacting together under esterification conditions and in one or more stages: (i) an aliphatic mono- and/or polyhydric alcohol having 5 to 10 carbon atoms per molecule and having no hydrogen atoms attached to any carbon atom in a 2 position with respect to any -OH group; and (ii) an aliphatic mono- and/or polycarboxylic acid having 3-12 carbon atoms per molecule; the basestock having dissolved therein: (a) 1À0 to 8À0% wt. of an alkylated aromatic amine antioxidant; (b) 0À005 to 1À5% wt. of a copper passivator; (c) 0À5 to 5À0% wt. of a neutral organic phosphate of the formula (RO) 3 PO, where the groups R are tolyl, phenyl or xylyl groups or alkyl or cycloalkyl groups having up to 10 carbon atoms; (d) 0À005 to 0À1% wt. of a dialkyl hydrogen phosphate of the formula (R<SP>1</SP>O) 2 P(O)OH, where R<SP>1</SP> is an alkyl or cycloalkyl group having up to 10 carbon atoms; and (e) 0À005 to 0À2% wt. of a dialkyl phosphite of the formula (R<SP>2</SP>O) 2 P(O)H, where R<SP>2</SP> is an alkyl or cycloalkyl group having up to 10 carbon atoms. The ester may be prepared by reacting one or more of the following: 2: 2: 4-trimethylpentanol, neopentyl alcohol, neopentyl glycol, trimethylolethane, trimethylolpropane, trimethylolbutane, pentaerythritol and di-pentaerythritol with one or more of the following: caprylic acid, capric, caprioic acid, enanthic acid, pelargonic acid, valeric acid, pivalic acid, propionic acid, butyric acid, 2-ethyl-hexanoic acid, adipic acid, sebacic acid and azelaic acid. The copper passivator may be imidazoles, pyrazoles, triazoles, salicylaldehyde semicarbazone or a C 1 -C 20  alkyl derivative thereof, and condensation products of salicylaldehyde and a hydrazine derivative or a fatty acid salt thereof such as a C 13 -C 18  fatty acid salt of 1-salicyl alaminoguanidine. The lubricant may also contain a dispersing agent, e.g. acrylate and methacrylate polymers, N-vinyl pyrrolidone/acrylate or methacrylate copolymers and N-vinyl pyrrolidone/olefin copolymers; a lead corrosion inhibitor, e.g. a C 1 -C 20  alkyl gallate, neopentyl glycol disebacate, sebacic acid and quinazarin; hydrolytic stabilizers, e.g. amines of formula R<SP>4</SP>(R<SP>5</SP>)NR<SP>6</SP> where R<SP>4</SP> and R<SP>5</SP> are C 1 -C 4  alkyl groups and R<SP>6</SP> is an alkaryl or hydroxy-substituted alkaryl group having up to 20 carbon atoms such as 2,6-ditertiarybutyl-4-dimethyl aminomethyl phenol; and silicones.
Patent GB-1081414-A (GB)
Title: A sliding surface bearing and method of making same
IPC: F16C33/14
Filed: 1964-08-11
Abstract: 1,081,414. Bearings; lubricating. CLEVITE CORPORATION. Aug. 11, 1964 [Sept. 13, 1963], No. 32748/64. Heading F2A. A bearing for a rotatable shaft 10 comprises a housing 11 containing a cylindrical shell or so-called outer race 13 and a further cylindrical shell or so-called inner race 12 with a ring 14 of bearing material, e.g. lead oxide in a matrix of metal of the kind disclosed in Specifications 963,266 and 1,001,017, sintered iron or aluminium and aluminium alloys, therebetween, the said ring being fixed by friction relative to the shell 13 and separated from the shell 12 by a narrow annular gap that is filled with oil or grease so as to allow rotation of the shell 12 with the shaft 10. The oil or grease is supplied to said gap by wicking material 18 that fills radial slots in the ring 14 and annular spaces on either side thereof, the material being retained and protected by annular seals 20. The shell 12 may include an annular groove of arcuate shape in cross-section to render the bearing capable of carrying axial loads and partially self-aligning. The ring 14 and the shell 13 may be integral with each other, Fig. 5 (not shown). Alternatively, the ring 14 is constituted by a plurality of segments (14<SP>11</SP>), Fig. 4 (not shown). In a method of manufacturing a bearing similar to the embodiment shown, the ring 14 is compressed axially, Fig. 8 (not shown), so that it flows into the annular groove (16) in the shell 12 while the latter is mounted on a shaft (25) and the shell 13 is lodged in a chuck (26). Subsequently, the shell 12 is expanded radially, Figs. 9 and 10 (not shown), without exceeding the elastic limit thereof so as to compress the ring 14 against the other shell, and form the aforementioned annular gap when the shell 12 is thereafter permitted to restore itself to its normal dimensions, expansion being effected by a tool (31) provided with rollers (32) that are pressed outwardly against the inner surface of the shell 12 while the other shell is held in a chuck (30). Alternatively, the shell 12 is supported by a shaft (35), Fig. 11 (not shown), while the ring 14 undergoes axial compression between jaws (36, 37) and the shell 13 is subject to radial loading to effect distortion thereof by a roller (45) engaging with its outer peripheral surface, the shaft (35) and said jaws being rotated while the ring is being compressed. Distortion of the shell 13 gives rise to the afore mentioned annular gap.
Patent GB-753560-A (GB)
Title: Novel ether-acetals and a process for the manufacture thereof
Filed: 1954-06-29
Abstract: The invention comprises the (3-ether)-acetals of 3 - hydroxy - 4 - methyl - 6 - [21,61,61 - trimethylcyclohexen - (11) - yl] - hexen - (4) - al-(1), and the preparation thereof by acetalizing 2 - methyl - 4 - [21,61,61 - trimethyl - cyclohexen - (11) - yl] - buten - (2) - al - (1) with a triester of an aliphatic orthocarboxylic acid and condensing the acetal so produced with a vinyl ether in the presence of an acidic condensing agent.  The triesters used in the above process are preferably derived from lower aliphatic orthocarboxylic acids and lower aliphatic alcohols-particularly the trimethyl, triethyl and tributyl esters of orthoformic acid.  The reaction with the triester is preferably carried out in the presence of an acidic condensing agent, e.g. boron trifluoride etherate, zinc chloride, ammonium chloride, ammonium nitrate, p-toluenesulphonic acid or phosphoric acid.  The condensation with the vinyl ether is preferably carried out using a vinyl ether of the same alcohol involved in the acetalization step.  Suitable acidic condensing agents for the reaction with a vinyl ether are boron trifluoride etherate, zinc chloride, titanium tetrachloride, aluminium chloride, ferric chloride and stannic chloride.  It is preferable to exclude oxygen from the reaction and to include an antioxidant such as hydroquinone or a -tocophenol in the reaction mixture. The preferred ether-acetals are the 1,1,3-trialkoxy-4-methyl-6-[21,61,61-trimethyl - cyclohexene - (11) - yl] - hexenes-(4), and in the examples 1,1,3-triethoxy-, 1,1,3-tributoxy-, 1,3-diethoxy-1-methoxy-, and 1-ethoxy - 1,3 - dimethoxy - 4 - methyl - 6-[21,61,61 - trimethyl - cyclohexen - (11) - yl]-hexenes-(4) are prepared.  Specification 753,559 is referred to.
Patent GB-416215-A (GB)
Title: Improvements relating to bag filling and weighing apparatus
IPC: B65B1/18
Filed: 1933-11-23
Abstract: 416,215. Filling-machines. LEFARGE ALUMINOUS CEMENT CO., Ltd., and KAY, C. M., 296, High Holborn, London. Nov. 23, 1933, No. 32772. [Class 94 (i).] In an apparatus for filling and weighing cement &c. into bags with the assistance of compressed air urging the material through a spout supported by the weighing mechanism, an inflatable and deflatable pneumatic sealing device is provided between the delivery conduit and the spout in order to reduce losses due to leakage. A feed valve, manually or automatically closed, is connected to a compressed air valve so that, at the end of the weighing operation, the material lodging in the spout is blown into the bag ; the air valve also controls the inflation and deflation of the sealing means. Assuming that an empty bag has been affixed in usual manner to the spout 20 which is supported on the weighing mechanism (not shown) by a beam 26, the feed valve 3 is opened by means of a hand-lever 6 and the cement is fed through the spout by the usual impeller assisted by compressed air from a nozzle 14. The spindle of the feed valve 3 carries a rotary plug valve provided with a number of radial passages for controlling two supplies of compressed air, one supply for inflating an annular sealing ring 17 and the other for emitting a blast of air from a nozzle 15 to blow the cement out of the spout 20 into the bag at the end of the weighing operation. The inflation of the ring 17 takes place during the commencement of the opening movement of the feed valve so as to seal the space between a stationary nose piece 16 on the supply outlet and a shroud 18 connected to the movable spout by a rubber tube 19. When the desired weight (as indicated by the weighing apparatus) has entered the bag the operator closes the feed valve thereby admitting a blast of air to the nozzle 15 to clear the spout, and deflating the annular sealing ring 17 to give complete freedom to the weighing mechanism. Handlevers 34, 30 are then turned to unclamp the bag and to allow the spout to tilt about a hinge 24 and permit the filled bag to drop off.
Patent GB-1414054-A (GB)
Title: Explosive drive mechanism especially for electrical switchgear
IPC: H01H39/00
Filed: 1973-07-10
Abstract: 1414054 Pneumatic actuators B B C BROWN BOVERI & CO Ltd 10 July 1973 [12 July 1972] 32846/73 Heading F1D [Also in Division H1] An explosive drive apparatus, particularly for  operating switchgear comprises a piston 1 disposed in a chamber 2 of rectangular cross-section, the cross-sectional area of the chamber increasing in the direction of travel of the piston during a power stroke, and means mounted on the piston to maintain a seal between the piston and walls of the chamber over the range of travel of the piston during the power stroke. The sealing means may comprise members 6 pivoted on the piston 1 with sealing strips 10 biased against the chamber walls 2a, 2b by corrugated spring strips 9. Gases from a propellant charge (not shown) are admitted to the chamber through an opening 5 and are discharged through ports 12 and vents 13 when the piston nears or reaches the end of its stroke.