baber/WOPTO huggingface dataset:
Patent GB-1389345-A (GB)
Title: Bearing assembly for sweeping brush rotors
IPC: F16C19/18
Filed: 1972-05-22
Abstract: 1389345 Bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 22 May 1972 [8 June 1971] 24050/72 Heading F2A  A rolling bearing assembly, particularly for mounting a brush cylinder 1 and a belt pulley 8, comprises a longitudinally extending member 2 providing at least one external raceway, an outer race 4 axially located with respect to the member and comprising two parts each having a radially outwardly extending flange, the flanges being secured to one another and the edges of the flanges remote from the axis of the outer race having portions 11 which extend axially in opposite directions from their respective flanges to form gap seals with the cylinder 1 and the pulley 8, and the member 2 having a projecting end portion 7 adapted to transmit torque between the member and the pulley 8. The member 2 is of plastics, and is manufactured of two similar parts which are ultrasonically welded to each other. The ends 7 of the member are provided with splines which engage splined plastics bushes 9. The brush cylinder 1 is of beechwood. The outer race parts are of plastics, and are welded together. Two integrally moulded webs 12 are provided for locating the bearing in a housing.
Patent GB-1346503-A (GB)
Title: Shoe for use in apparatus for investigating earth formations surrounding a borehole
IPC: G01V3/20
Filed: 1971-04-19
Abstract: 1346503 Borehole logging SCHLUMBERGER INLAND SERVICES Inc 19 April 1971 [6 March 1970] 24205/71 Heading G1N A borehole logging electrode assembly shoe includes a plate of insulating plastics material in or on one face of which is mounted the electrode assembly, the arrangement being such that part of the electrode assembly is flexible and part rigid so as to be able to conform to the borehole wall. The sonde 1 includes two shoes 4 mounted by thrust arms 5, 6 for movement into and out of engagement with the bore wall 10. The major part of each shoe 4 consists of a flexible plate 12 of an elastomer reinforced by central back rib 20 including a rigid parallelopiped box 22 Fig.2 defining a cavity 30 and which is mounted on sole 8. Two central electrodes 14, 15 made of rigid metal pieces are screwed 41, on to the base of the box 22 adjacent the front surface 13 of the shoe and separated from each other by neoprene inserts 42, Fig.3 (not shown) such that the electrodes 14, 16 are slightly recessed with respect to plate 12 and insert 42 and have transverse dimensions not exceeding the width of box 22. Rectangular frame electrode 17 includes two flexible transverse sides 44, 45 composed of hard carbon steel spring blades which are screwed, Fig.4 (not shown) on to the base of box 22 in their middle part. The electrode proper includes conducting strips 48 welded to the middle portions of the spring blades and metal platelets 50, 51, 52 welded to the outer portions of the spring blades. The electrode elements are separated by insulation inserts so as to be recessed. The frame is completed by rigid connecting strips 60 set in the plate 12. Electrodes 16 and 18 are formed in a similar manner except that in the case of electrode 16 the transverse sides are only composed of conductive strips 48. The electrodes are connected to connectors 34 mounted in the cavity 30 which may be filled with grease.
Patent GB-622272-A (GB)
Title: Improvements in or relating to dyes and particularly photographic sensitising dyes
IPC: C09B23/14
Filed: 1946-04-26
Abstract: Styryl dyes are prepared by condensing a p-tertiary amino aromatic aldehyde containing a single aldehyde group with an alkyl bis quaternary salt of a heterocyclic nitrogen compound having a reactive methyl group in the a -or g -position to each heterocyclic nitrogen atom.  The condensation may be effected in the presence of an acid binding substance, especially an organic amine having a dissociation constant greater than pyridine, e.g. ethylamine, diethylamine, piperidine, and diethylcyclohexylamine. The heterocyclic nuclei may be thiazole, oxazole, selenazole, iminazole, indolenine, dialkylindolenine, or pyridine nuclei, or nuclei having fused-on carbocyclic rings such as benzthiazole or quinoline nuclei, and may be linked by the use of polyfunctional hydrocarbon derivatives such as polyhalogen substituted alkanes, alkyl esters of alkylene or cycloalkylene sulphonic acids, alkyl esters of arylene sulphonic acids, alkyl disulphates, esters of sulphonic acids with polyhydric alcohols, and mixed compounds such as a -bromo-b -ethylsulphonates of ethane, and these derivatives may be substituted by nitro, primary or secondary amino, hydroxy, carbonyl, thiocarbonyl, heterocyclic, or hydrocarbon groups.  The aldehyde may be p-dimethylaminobenzaldehyde, o-methyl-p-diethylaminobenzaldehyde, 4 - diethylamino - 1 - naphthaldehyde, 6 - diethylamino - 2 - naphthaldehyde, or p-N-morpholinobenzaldehyde.  Hexamethylene - bis - (2 - p - dimethylaminostyrylbenzthiazole)-dibromide is prepared by refluxing together hexamethylene-bis-(2-methylbenzthiazole) dibromide, p-dimethylaminobenzaldehyde, alcohol, and piperidine.  Hexamethylene - bis - (2 - methylbenzthiazole) dibromide is prepared by heating together hexamethylene dibromide and 2-methylbenzthiazole. Specifications 334,706, [Class 2 (iii)], and 573,394 are referred to.
Patent GB-646281-A (GB)
Title: Improvements in dynamos
IPC: H02K23/20
Filed: 1945-09-19
Abstract: 646,281. Exciting dynamo-electric machines. MATERIAL ELECTRIQUE S. W. Sept. 19, 1945, No. 24297. Convention date, July 8, 1943. [Class 35] In a machine with windings on the main poles connected to one or more auxiliary brushes, auxiliary poles are provided having series excitation and either separate excitation or excitation varying with variations of current in the load circuit. In Fig. 2, each winding on a main pole 2 is connected between a main brush 6 or 6<SP>1</SP> and an auxiliary brush 7 or 7<SP>1</SP> while the auxiliary poles 4, 4<SP>1</SP> carry series coils 11, 11<SP>1</SP> and coils 12, 12<SP>1</SP> in a closed circuit with the secondary 13 of a transformer having its primary in the load circuit. In another form the coils on the main poles are connected in series between one main and one auxiliary brush and voltage from a separate source may be fed into this circuit. In a further modification the coils on the main poles are converted across a pair of auxiliary brushes. The load may be the field coil of a main machine.
Patent GB-360510-A (GB)
IPC: H04R1/34
Filed: 1930-08-14
Abstract: 360,510. Sound magnifying and directing appliances. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Aug. 14, 1930, No. 24391. Convention date, May 24. [Class 13.] In a loud-speaker arrangement designed to suppress echo in churches, large halls, &c., the loudspeaker acts on a substantially acoustically closed sound guide provided with one or more sound outlet apertures, the length of the sound guide in the direction of the propagation of sound from the receiver unit being substantially greater than its width. As shown in Fig. 1, the loud-speaker unit 1 operates through a horn 2 on a prismatic body 3 provided with apertures 4. If desired, the body 3 may be horn-shaped. The apertures 4 are preferably lined with materials of an acoustically permeable character and the sound guide may be covered with a sound-deadening material, such as felt, weighted by means of additional masses or stiffened by ribs. Fig. 2 shows a number of loudspeakers and sound guides fitted to pews, whilst Fig. 3 shows speakers 5 .. 8 mounted at the corners of a conference table fitted with a sound guide 9 containing apertures 10.
Patent GB-444098-A (GB)
Title: Improvements in and relating to bottle and like closures
IPC: B65D55/08
Filed: 1935-08-31
Abstract: 444,098. Closures for bottles. CARVALHO, L. R. N., 2244, Scottwood Avenue, Toledo, Ohio, U.S.A. Aug. 31, 1935, No. 24391. [Class 125 (iii)] The sealing band of a bottle closure has a tongue or finger piece 19 at one end, and a slot 22 having converging walls through which the tongue is passed before the band is spun on the bottle. Lines of weakness 25 extend from the slot 22 to the end of the band. To remove a closure secured by the band it is necessary to tear out the part 24 thereof.
Patent GB-839759-A (GB)
Title: Improvements in or relating to articles made from rubber or rubber-like materials
Inventor: ANSELL HARVEY NEIL
IPC: B29D22/00
Filed: 1955-08-25
Abstract: 839,759. Moulding hollow rubber articles. ANSELL, H. N., and LANDAU, L. Aug. 1, 1956 [Aug. 25, 1955], No. 24509/55. Class 87(2). [Also in Group XIII] A hollow article with an aperture in a wall thereof, e.g. a hot water bottle, is moulded from rubber or a rubber-like material by employing a mould having two parts 20 and 21, and a core 22 formed with an extension 23 to separate the mould parts. Two sheets 26, 27 of unvulcanised or partly vulcanised rubber are pressed between the core and the mould parts, and remain in contact with the latter when the mould is opened and the core removed. The mould parts are again closed, pressure is applied to the sheets to join them together whilst they are held against the mould parts by steam passing through a passage 31 in a core 30 inserted in the neck portion, and the material is vulcanised. In the primary moulding ridges 24 on the outer mould parts remove surplus material and a ridge 29 of rubber is formed around the periphery of the upper half of the article. The mould parts are heated during moulding and cooled just before opening, and the core is cooled or treated on its surface to reduce adhesion. The core 30 carries a ferrule 30b and after vulcanisation the core 30 is removed to leave the ferrule 30b fixed in the neck of the bottle to receive a stopper. In a modification, a neck and filling assembly is moulded and vulcanised separately from the main body of the bottle, to which it is later joined by vulcanization.
Patent GB-656494-A (GB)
Title: Improvements in filters for liquids
IPC: B01D35/153
Filed: 1948-09-20
Abstract: 656,494. Filters. FORD MOTOR CO., Ltd. Sept. 20, 1948, No. 24598. Convention date, Sept. 19, 1947. [Class 46] An oil filter having an inlet and outlet located at its base has check valves in the inlet and outlet spring-biassed to permit oil flow in the normal direction so that the filter is maintained full when the engine lubricated by the oil has stopped running, and a byepass valve between the upstream side of the upstream check-valve and the downstream side of the downstream checkvalve to permit the flow of oil directly from inlet to outlet when the filter is clogged. A small orifice communicating with the inlet side of the filter may be provided to permit a continuous flow of oil over, but not through, the filtering element to the crankcase. During normal flow oil enters at 26, Fig. 4, past a ball valve 28, and into a space 29, whence it passes through a cylindrical filtering element 18, Fig. 1, into a space 30, past a ball valve 31, and out at 27. For a particular inlet oil pressure and a particular thrust of a compression spring 36, a byepass valve 34 controlled by the spring is forced to the left, as shown in Fig. 6, when the pressure in the outlet space 30 drops to a critical value due to total clogging of the element 18. Oil then flows past the valve 34 to the outlet 27. The springs controlling valves 28 and 31 are chosen so that these valves close at the same time, the filter chamber thus remaining permanently full. When the inlet oil pressure is very low during idling of the engine, the spring 36 forces the byepass valve 34 to the fully-open position. Valves 28 and 31 close at the same time. When the filter element 18 is only partially clogged, the valve 34 is just closed. A slot 20, Fig. 1, is provided in a screw 14 which engages with a supporting tube 13, the top of the tube being closed by a disc 22 having an orifice 23, and the bottom opening into a conduit 24 leading to the crankcase. Unfiltered oil may thus rise from the inlet space 29, pass over the element 18, and through slot 20 and orifice 21 back to the crankcase to rapidly warm up the filtering element after a cold start.
Patent GB-774384-A (GB)
Title: Improved process for the manufacture of dialkyl esters of sulphuric acid
Inventor: ROBERTS ELWYN
IPC: C07C29/06
Filed: 1953-09-08
Abstract: Dialkyl sulphates are prepared by heating a stoichiometric excess of a mono-alkyl hydrogen sulphate with an alkali metal, ammonium or alkaline-earth metal chloride to form the corresponding metal or ammonium salt of the alkyl hydrogen sulphate and continuing the heating to convert the resulting mixture containing the alkyl sulphate salt and unchanged alkyl hydrogen sulphate to form a reaction product comprising dialkyl sulphate and alkali-metal, ammonium or alkaline earth metal sulphate from which the dialkyl sulphate is then separated, e.g. by distilling off the desired ester or by adding water to dissolve the inorganic sulphate and form a saturated solution thereof which separates from the ester.  In examples, 1 mol. of sodium, potassium or ammonium chloride and 2 mols. of ethyl hydrogen sulphate are heated to 80 DEG  C. and after evolution of HCl, the product is further heated to 125 DEG  C. to yield diethyl sulphate which is recovered as above.  Reference is made to the formation of dimethyl sulphate in like manner.  Calcium chloride is specified as an example of an alkaline earth metal chloride reagent.  Specification 149,688, [Class 2 (iii)], is referred to.
Patent GB-790603-A (GB)
Title: Improved fluid coupling
IPC: F16D33/20
Filed: 1956-08-14
Abstract: 790,603. Hydrodynamic couplings. GENERAL MOTORS CORPORATION. Aug. 14, 1956 [Sept. 12, 1955], No. 24821/56. Class 69 (2). Liquid can be supplied to a hydrodynamic coupling between the inner peripheries of an impeller P and a turbine T and exhausted from between the outer peripheries, the back of the turbine carrying vanes 42 to direct the liquid to exhaust valves 28. Valves 28 are normally maintained open by springs 54 aided by centrifugal force, and are closed by applying hydraulic pressure through a passage 30 to act on the top of heads 48 of the valves to thus close exhaust passages 40. The turbine shell may be stamped from sheet metal and the turbine blades 21 be formed with tabs seating in depressions 60 and a channel 66 formed in the shell, and the tabs be welded to the shell. The tabs are so set that the blades are inclined backwardly relative to the. direction of rotation of the turbine. Balance weights can be selectively added to the blades to control vibration. The impeller blades are formed similarly. The vanes 42 are formed integrally on a ring_ which is secured to the turbine. In a modification the turbine shell is cast and has blades 21 and vanes 42 integral therewith.
Patent GB-657510-A (GB)
Title: Improvements in or relating to match-box covers
IPC: A24F27/04
Filed: 1948-09-22
Abstract: 657,510. Match-box holders or covers; bottle openers. STANFORD, W. T. J. Sept. 22, 1948, No. 24838. [Classes 18 and 125(ii)] A match box cover formed from sheet stainless steel or other hard metal bent to U-shape has an orifice 15 formed in the rounded wall to provide a lip 17 for engagement with and removal of a bottle cap. The upper edge 18 is chamfered to bear on the top of the cap and a flat 16 is formed below the lip 17 which is bent inwardly.
Patent GB-785146-A (GB)
Title: Yarn treatment
IPC: D06B1/02
Filed: 1955-08-30
Abstract: <PICT:0785146/IV (a)/1> <PICT:0785146/IV (a)/2> In apparatus for treating yarns with liquids wherein the yarn 13 is advanced in a number of convolutions around a plurality of rotating rolls such as rolls 11, 12 with skew axes, the liquids being applied to one or more of the rolls or to different sections 17, 18 of the same roll, by, for example, sprinklers 14, 16, there is provided one or more resilient wiper elements 23, 24, e.g. of natural or synthetic rubber, adapted to engage and to remove liquid from one roll 11 and to transfer it to another roll 12 which the wiper also engages.  The lower edge of the wiper element may be serrated as at 29.  When two or more liquids are applied to one roll, the roll is divided into sections by barrier means such as grooves 22 although, when aqueous liquids are applied, the barrier may comprise a coating of, for example, polyethylene or a polyhalogenated ethylene or other water-repellent substance. Contamination of a treating liquid by liquid carried over from a previous section can be eliminated by the provision of an auxiliary wiping element 36 (see also Fig. 2) which is adapted to remove liquid from the section 18 of the roll 11 adjacent the barrier and transfer it through a trough 38 to the section 17 of the lower roll 12.  The wipers are carried by a support 26 which is notched at 33, 34 to prevent liquid flowing along it.  As applied to the saponification of cellulose acetate yarn, the alkaline saponifying liquid is applied through sprinkler 14 to the section 17 of upper roll 11, wash water being applied through sprinkler 16 to the section 18 of upper roll 11.  Saponifying liquid is collected in trough 39 and recycled through pipe 41 to sprinkler 14, make-up liquid being added at 42.
Patent GB-191119-A (GB)
Title: Improved apparatus for the gasification of coal
IPC: C10J3/00
Filed: 1922-06-20
Abstract: 191,119. Pearson, Ltd., E. J. & J., and Deeley, J. C. Sept. 20, 1921. Gas-producer furnaces.-In apparatus for the gasification of coal two or more vertical retorts and one or more gas producers are built together' so that gas from the producer may be used for heating a retort or retorts and water-gas, coal gas, and producer gas may be simultaneously generated. The structure comprises a producer a and retorts c, d surrounded by heating flues o through which the producer gas from the "blow" is passed and burned with secondary air preheated in the brick-work u<2> and led to the flues o by a conduit u<3> and passages q, r, s, t controlled by dampers w. During the " run " the hot water-gas is passed through the flues o to the outlet o<3>. The lower chamber c<2> of the retort has an interchangeable bottom c<3> for which may be substituted firebars d' when the retort is operated for complete gasification, discharging doors g being provided. Coal gas is generated in one retort c, and from the other retort d producer gas is obtained, air and steam being introduced through inlets e. Provision is made for the admission of steam by pipes h, i into either or both the retorts, and if desired both retorts may be used for the generation of coal gas.
Patent GB-1344009-A (GB)
Title: Electrical signal attenuators
IPC: H03G3/20
Filed: 1971-04-19
Abstract: 1344009 Automatic gain control HONEYWELL INFORMATION SYSTEMS Inc 19 April 1971 [6 May 1970] 25151/71 Heading H4R In a variable gain circuit, e.g. for an automatic gain control system two circuit paths convey signals from an input 18 to an output 30, one path having a variable impedance 42, 44 included in series and the signals from the two paths being combined in phase opposition, by transformer 22, so that variation of the series variable impedance changes the proportion of the input signal appearing at output 30. In an alternative embodiment, Fig. 2, not shown, the two paths are connected in parallel and feed respective windings on the same transformer. Impedance matching circuits 10, 28 are provided at the input to, and the output from, the variable gain circuit.
Patent GB-1107164-A (GB)
Title: Improvements in fuel feed systems for internal combustion engines
Inventor: MENNESSON ANDRE LOUIS
IPC: F02M1/00
Filed: 1966-06-06
Abstract: 1,107,164. Spray carburetters. SOCIETE INDUSTRIELLE DE BREVETS ET D'ETUDES S.I.B.E. June 6, 1966 [June 11, 1965; July 27, 1965], No. 25157/66. Heading F1B. An accelerating device 10, Fig. 2 has an accumulator 27 fed with fuel under pressure at 8, e.g. from the carburetter fuel supply pump, and delivers through a separate nozzle 5 downstream of the throttle valve 2. The nozzle 5 is normally closed by a valve 13a actuated by a spring-loaded diaphragm 16. Upon opening of the throttle valve 2 the increase in suction temporarily opens valve 13a. The accumulator chamber 27 with a spring-loaded diaphragm 26 is charged during normal running and discharges during acceleration, the valve 13a closing off the connection 12 to the pipe 8 during acceleration. The accumulator space 31 may be connected to the induction pipe by pipe 30; alternatively diaphragm 26 may be operated from the throttle valve 2 through linkage. In Fig. 11 (not shown) the diaphragm 26 is loaded by two springs (78), (78a), which are both operative at the beginning of operation of diaphragm 26, the stronger spring 78 being rendered inoperative by shoulder 79 mid-way through the diaphragm pumping stroke. In Fig. 4 valve 13a is operated from throttle lever 35 through a dashpot 38. In Fig. 10 the valve 13a is operated by a solenoid 74 which is energized during acceleration by a suction operated diaphragm 16 controlling contacts 71. A switch 81 is opened when throttle valve 2 is at idling position to prevent operation of the acceleration pump when the engine stops. The nozzle 5 may deliver into a tube (108) Fig. 15 (not shown) open to the atmosphere at (110).
Patent GB-974324-A (GB)
Title: Improvements relating to garments
Inventor: GEIPEL UDO
IPC: A41D7/00
Filed: 1963-06-25
Abstract: The invention of the parent Specification concerned with a garment made of tubular knitted fabric having a front of rear reinforcement panels knitted thereinto without the use of elastic threads is applied to swimtrunks, swimsuits and leisure wear (defined).
Patent GB-897832-A (GB)
Title: Drill bit
IPC: E21B10/46
Filed: 1959-07-22
Abstract: 897,832. Diamond tools. SOCONY MOBIL OIL CO. Inc. July 22, 1959 [July 30, 1958], No. 25215/59. Class 124. Diamond cutting elements are set in a matrix to form a rotary rock bit at such an angle that a direction of maximum hardness in each of the diamonds is substantially in line with the direction of greatest force exerted on the diamond during the drilling of the rock. A direction of maximum hardness, considering a cube-shaped diamond, is along a line 30 bisecting the angle between the x and z axes of the diamond. Similarly, other maximum hardness directions bisect the angles between the x and y, and y and z axes. If the diamond is an octahedron, the z<SP>1</SP>, y<SP>1</SP>, z<SP>1</SP> axes are drawn between opposite pyramid points 40, 41 etc. The direction 60 bisects the angle between the x<SP>1</SP> and z<SP>1</SP> axes and lies in a plane 50, referred to as a cube face, the diamond being set in the matrix so that a force, which is the resultant of the weight applied by the diamond to the rock and the horizontal force of the drilling torque, lies in or parallel with the face 50. A similar technique for determining a direction and cube face is used for dodecahedron diamonds. It is known that other directions within diamonds possess a hugh degree of hardness, e.g. in a dodecahedron form, a long diagonal in a rhombic face. Diamonds may be arranged with these directions substantially in line with the resultant reaction force of the rock. The angle of setting of the diamonds is determined by experiment upon a piece of the rock to be drilled.