baber/WOPTO huggingface dataset:
Patent GB-684073-A (GB)
Title: Microwave frequency stabilizer
IPC: H03L7/04
Filed: 1951-06-08
Abstract: 684,073. Frequency measurement. STANDARD TELEPHONES & CABLES, Ltd. (Federal Telephone & Radio Corporation). June 8, 1951, No. 13656/51. Class 37. [Also in Groups XXXV and XL (b)] The frequency of a micro-wave oscillator is stabilized at the natural frequency of a cavity resonator by an arrangement of two wave-guide couplers of the kind known as a magic T. The oscillator 5 is coupled to a wave-guide 6 which forms a T-junction with two lateral arms 7, 8, one of which, 7, feeds the load, and the other, 8, forms the input guide to a second T-junction. A third arm 9 lying in a plane perpendicular to the plane of the arms 6 to 8 contains a crystal rectifier. The second T-junction comprises a lateral arm 11 of length l terminating in a short circuit 14, and a lateral arm 12 extending in the opposite direction to a length l+#/8 and terminated by a cavity resonator 15 tunable by a knob 18. The perpendicular arm 13 of the second T-junction also encloses a crystal rectifier. The outputs of the two rectifiers are fed jointly to a D.C. amplifier 19, the output of which is applied as a frequency-regulating voltage to the oscillator 5. Undesirable reflections from the crystals are reduced or eliminated by the provision in front of each crystal of an attenuation or resistor pad 22, 23 which may be of diamond or other suitable shape with their planes parallel to the electric vector. The general arrangement of the double magic T is described in Proceedings of the Institution of Radio Engineers, December, 1947, page 1405.
Patent GB-651545-A (GB)
Title: Improvements in or relating to the preparation of enzymes
IPC: A61K38/00
Filed: 1948-05-21
Abstract: Hyaluronidase is prepared from finely-divided mammalian testicular tissue by adding water thereto, adjusting the pH of the aqueous mixture to 4.5-4.7 (preferably 4.6), separating the solid material after prolonged stirring (preferably for at least 12 hours), adjusting the pH of the liquid to 7.5-9.2 (preferably 8.0-8.2), separating the resulting precipitate of inactive solid material, adjusting the pH of the liquid to 4.6-7.1 (preferably 4.6-5.2), adding ammonium sulphate (preferably by dialysis) in such amount that the liquid is 25-30 per cent saturated therewith, separating the further precipitate of inactive solid material, readjusting the pH of the liquid to 4.6-7.1 (preferably by dialysis) until the liquid is 60-80 per cent saturated therewith, thereby precipitating hyaluronidase, which is separated from the liquid and may be redissolved in water and the solution dialysed against running water, filtered and evaporated to dryness, the whole process being conducted at a temperature of 1-5 DEG  C.  The product may be further purified by alcohol fractionation or a second fractionation with ammonium sulphate. An example describes the application of the process to bull testes, which are prepared for treatment by freezing, removing the outer membrane, grinding to powder in the presence of dry ice, allowing to come to room temperature and further grinding in a Waring blender.  The Specification as open to inspection under Sect. 91 comprises the use of a pH range up to 5.7 in the first step of the process. This subject-matter does not appear in the Specification as accepted.
Patent GB-1158110-A (GB)
Title: Process For The Preparation Of Solid Adducts
Inventor: VUSSE JAN GERRTI VAN DE
IPC: C07C67/00
Filed: 1968-03-22
Abstract: 1,158,110. Separating hydrocarbons. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 22 March, 1968, No. 13896/68. Heading C5E. A process for the preparation of solid adducts by treating one or more adductable organic compounds with an adducting agent comprising urea or thiourea comprises contacting the adductable compound with a solution of adducting agent in liquid ammonia at 40‹ to 100‹ C. and at an ammonia pressure at least equal to the equilibrium ammonia pressure of a saturated solution of adducting agent in liquid ammonia. The process is applicable to separating straight- and branch-chained hydrocarbons, which if viscous may be dissolved in a light hydrocarbon diluent.
Patent GB-1432314-A (GB)
Title: Selector apparatus for record carriers in sheet form
IPC: G06K21/02
Filed: 1974-03-28
Abstract: 1432314 Record carrier selector PENTADON DRESDEN KAMERA - UND KINOWERKE VEB 28 March 1974 [13 June 1973] 13902/74 Heading G4M A cassette (Fig. 4, not shown) containing identifying perforations or notches along two opposed edges is lowered on to a set of selecting pins 1. Selected magnets 14 are operated to raise pins 13 mounted on springs 12 so that detent pawls 10 are raised by springs 15 to engage in a recess 8À1 in spring loaded rod 8. Cams 11 are rotated to advance rods 8 so that selected rods 9 coupled to the raised pawls 10 are advanced. Rods 9 are coupled to a sleeve 7 containing pins 1 so that cards having perforations at the selected positions are moved forwardly. The advanced sleeves have a recess 18 receiving an end of a lever 19 and when rod 9 operates a switch 20 a magnet 21 is operated to pivot lever 19 and retract the sleeves 7 and pins 1. At the same time retaining pins 31 are raised to retain the unselected cards. A movable tray 27 carries guides 23 for pins 2 raised by levers 24 operated by magnets 26 to engage perforations in the edge of the moved cards. The tray is moved to removes the cards which are transported to a reader and returned to the top of the cassette.
Patent GB-552036-A (GB)
Title: Process for the manufacture of sodium-d-pantothenate in crystalline form
IPC: C07C233/46
Filed: 1941-10-29
Abstract: 552,036. Pantothenic acid. HOFFMANN-LA ROCHE & CO. AKT.-GES., F. Oct. 29, 1941, No. 13918. Convention date, Jan. 17. Sample furnished. [Class 2 (iii)] Sodium-d-pantothenate is prepared in crystalline form by a process which comprises condensing #-alanine with d-(-)-α-hydroxy-##- dimethyl-y-butyrolactone in the presence of the equivalent molecular quantity of a solution of sodium in alcohol, and then slowly adding at a low temperature a solvent such as ether in which sodium-d-pantothenate is insoluble. In an example #-alanine is dissolved with gentle heating in sodium methylate solution and d(-)-α-hydroxy-##-dimethyl-y-butyrolactone is added at 30‹C. On careful addition of ether, the sodium-d-pantothenate crystallizes out. A sample has been furnished under Sect. 2 (5) of crystalline sodium d-pantothenate prepared by adding #-alanine to a solution of sodium in ethyl alcohol, followed by d(-)-α- hydroxY-##-dimethyl-γ-butyrolactone and then after 2 days by the slow addition of ether. Specifications 535,988, 551,883, 552,581 and 552,641, are referred to.
Patent GB-621865-A (GB)
Title: Improvements in or relating to mid-soles for shoes
IPC: A43B13/12
Filed: 1946-05-08
Abstract: 621,865. Wedge heel shoes. MOREL, M. May 8, 1946, No. 13925. Convention date, May 19, 1945. [Class 17 (ii)] A wedge heel shoe has a mid-sole or platform 3 of felted material impregnated with a cohesive, waterproofing and plasticizing solution, interposed between the inner and outer soles 2, 9. An edge strip 6, which may be secured to the upper 1, insole 2 and welt 5 by the inseam 4 may be turned-in under the lower face of the midsole 3 to cover the edge thereof. The impregnant may be a synthetic resin in organic solutions or an emulsion in water or other medium, or a solution of cellulose ether.
Patent GB-290253-A (GB)
Title: Manufacture of yellow azo-dyestuffs
Filed: 1928-05-11
Abstract: 290,253. I. G. Farbenindustrie Akt.- Ges. May 11, 1927, [Convention date]. Azo dyes which dye wool in yellow shades fast to light are obtained by coupling an aromatic diazo or tetrazo compound (with the exception of the diazo compounds from aminoacidyl derivates of o-aminophenol sulphonic acids) with a 1-(o-sulplo-haloben)phenyl-3-methyl-5-pyrazolone of the type in which X is hydrogen or a substituent and Y is hydrogen or halogen, one X being necessarily halogen when Y is hydrogen. The following dyestuffs are specified in examples :-sulphanilic acid # 1-(4<1> [or 5<1>] chloro-2'-sulpho)phenyl-3- methyl-5-pyrazolone; o-chloraniline # 1-(4<1>- bromo - 2<1> - sulpho)phenyl-3-methyl-5-pyrazolone; 2 : 4-dichloraniline-6-sulphonic acid, o-anilinesulphonic acid, or m-aminobenzaldehyde # 1-(4<1>- chloro - 2<1> - sulpho-phenyl-3-methyl-5-pyrazolone; aniline # 1-(4<1>-methyl-5<1>-chloro-2<1>-sulpho)- phenyl-3-methyl-5-pyrazolone; 1-chloro-2-aminobenzene-4-sulphonic acid # 1-(4<1>-chloro-6<1>- methyl - 2<1>-sulpho)phenyl-3-methyl-5-pyrazolone; 1-methyl-2-aminobenzene-4-sulphonic acid # 1- (5<1>-chloro-6<1>-methyl-2<1>-sulpho)phenyl-3-methyl- 5-pyrazolone; m-aminohenzoic anilide # 1- (4<1> : 5<1> dichloro - 2<1> - sulpho)phenyl-3-methyl-5- pyraxolone; 4 : 4<1>-diamino-3 : 3<1>-dichlorodiaminodiphenylmethane # 1 - (4<1>-bromo-2<1>-sulpho)- phenyl-3-methyl-5-pyrazolone (2 mols.); 2:2'-dimethyl-4: 4<1>-diaminodiphenyl # 1-(4<1> :5'-dichloro-2<1>-sulpho)phenyl-3-methyl-5-pyrazolone (2 mols.). 1 - - (o sulpho-halogen)phenyl-3-methyl-5-pyrazolones of the above type are obtained in the usual way from the hydrazone obtainable from the corresponding sulpho-halogen-phenylhydrazine and acetoacetic ester.
Patent GB-611788-A (GB)
Title: Improvements in or relating to the manufacture of paper bags
IPC: B31B19/90
Filed: 1946-05-08
Abstract: 611,788. Paper and like bags. LAMSON PARAGON SUPPLY CO., Ltd., and SHEPPARD, R. W. May 8, 1946, No. 13931 [Class 94 (ii)] In the making of a bag 5 of paper, or the like, shown, one or more reinforcing strips .6, 7 are applied to the web 12 from which the bag is made. The bag may be of the type described in Specification 454,113, the hand-holes 8 and securing tongues 9, 10 being formed through the reinforcing strips. These may be inside or outside the bag. In Fig. 4, parallel rolls 6, on the same spindle, on which one roll is loosely mounted, feed strip material over a gumming roller 18 and around a guide roller 15, which presses the strip 6 and the web together. The reinforced web passes on to the usual bag making machinery. To secure the bag, the top part is folded over, at the line 11 and held by the tongues 9, 10. Any usual adhesives, such as. rubber, thermal or pressure-setting plastics, may be used.
Patent GB-237693-A (GB)
Title: Improvements relating to direction and turning signals for vehicles
IPC: B60Q1/34
Filed: 1924-06-10
Abstract: 237,693. Lynas, J. June 10, 1924. Road-traffic signals on vehicles. - Apparatus for signalling motors ' ahead ' of a vehicle comprises a hand F, pivotally mounted in front of the windscreen 1 and connected by links to an operating handle 2. The arrangement of links is such that the hand is raised and lowered by forward and backward movement respectively of the handle 2. A catch 3, pivoted on the link 14 and having a thumb piece 3<a>, is adapted to engage a notch on a plate 21 on the windscreen when the hand is in either position. The ' ahead ' signal is used in conjunction with hands L pivoted at each side of the windscreen and adapted to give turning signals. The hands L are connected by links to operating handles 4. The hands may carry coloured lamps which may be lighted automatically when the indicators are moved into their signalling positions.
Patent GB-168138-A (GB)
Title: Locomotive stokers
IPC: F23K3/04
Filed: 1920-05-21
Abstract: 168,138. Lower, N. M. May 21, 1920. Fuel, feeding.-Fuel is conveyed from the tender 4, Fig. 1, of a locomotive to the fire-box by a screw conveyer 7 located in a conduit 5 communicating at its rear and with an opening 4<a> at the bottom of the tender and at its forward end with upwardly extending inclined conduits 36, Figs. 1 and 2, provided with elevating-mechanism for raising the fuel at the front of, and for delivery into, the firebox. The conduit 5 is provided with a telescopic section 5b, operated by a lever 10 when it is necessary to remove any large lumps or masses of foreign material, and a section 5<a> communicating with a rotatable screening-member 13 provided with slots 14 and surrounded by a cylindrical sleeve 15. The sleeve 15 is provided with slots corresponding with the slots in the screen 13 and is adapted to be rotated to vary the size of the slots 14 by a cam-roller 17, Fig. 5, engaging with a spiral or inclined slot in the sleeve 15 which is moved longitudinally by a lever 19 and rod 21 when it is desired to rotate the sleeve. The fuel drops into a conduit 25 and is fed bv a conveyer 27 through a flexible conduit 74 and 51, Fig. 3, extending upwardly through the rear portion of the grate. Sliding plates 53 adapted to be moved in slots 54 serve to distribute the fuel. The coarse fuel is fed by the conveyer to the conduits 36, the relative supplies to the conduits being controlled by a pivoted deflector 37. Reciprocating rods 40, driven from a worm-wheel on the end of the conveyer shaft through rods 46. 47 and a bell-crank lever 42 and provided with hinged vanes 48, Fig. 6, having stops 50, serve to elevate the fuel on their upward stroke and move idlv through the fuel on their downward stroke. The conveyers and elevators are driven by an engine, the exhaust steam from which may be led through a pipe 64 to the conduits 36 for moistening the fuel. Instead of exhaust steam, live steam or water may be used. The rear end of the conduit 5 is attached to the tender 4 by rollers 68 engaging slots in a frame 70 pivoted at 71 to the tender and provided at its rear end with a flange adapted to move in a guide 73. The fuel may be crushed as it leaves the tender by rollers 149, 150, Figs. 7 and 9, driven in opposite direction through gearing operated by an engine 61a. To enable the roller 150 to be moved towards or away from the roller 149, its bearings 150b are movable in slots 151, the hollow shaft 150<a> being provided with an internal shaft 150<c> to which is secured pinions 152 engaging with racks 153 and adapted to be actuated by a lever 154.
Patent GB-728297-A (GB)
Title: Improvements in rotating brush gear more especially for dynamo-electric machines
IPC: H02K13/00
Filed: 1952-06-04
Abstract: 728,297. Rotating electrical brush gear. LAURENCE, SCOTT & ELECTROMOTORS, Ltd., and LANGHAM, E. M. Sept. 2, 1953 [June 4, 1952], No. 14108/52. Class 35. The carrier 31 for rotating brushes 32 engaging fixed radial sliprings or commutator 22, is driven in such a way that it is free to float radially. The rotor shaft 25 has slots 29, 30 in which the carrier slides, and is bored out to receive a spring 38 which provides the axial brush pressure. The connections 23 from the stationary armature 21 are made direct to the commutator, while the rotating brushes are connected through slip-rings 33, 34. As shown, the rotor is permanently magnetized but may be excited through slip rings. The commutator may be separated from the body of the machine, the armature connections being brought through holes in the end-shield and two commutators may be placed back to back, the brush carriers being pulled towards each other by a common spring. Where heavy currents are commutated, brushes may act on both sides of each commutator disc. The brushes may be mutually radially displaced to function in multi-polar machines or with slip-rings at different radii, a balance weight being used if required. The brush-gear may be geared up to run as many times faster than the machine as there are polepairs, with a proportionate reduction in the number of commutator poles and segments, the brush position being adjustable through a differential gear. Since the commutator is stationary it may have carbon segments and the brushes may be of metal.
Patent GB-865759-A (GB)
Title: Improvements relating to fluid pressure operated servo motors
IPC: F15B13/04
Filed: 1956-05-07
Abstract: 865,759. Valves. BISHOP, R., JOHNSTON, R. H., and WHITLOCK, G. B. R. May 3, 1957 [May 7, 1956], No. 14141/56. Class 135. [Also in Group XXXI] A servomotor spool valve 1, Fig. 1, has directlift type exhaust lands 5, 7 at each end extending radially beyond the central inlet control land 2 to increase the cross-sectional area of flow to exhaust. The spool 1 is slidable in the bore 12 of a casing 13 and has flats 8, Fig. 2, to provide fluid passages in the region of the servo-cylinder connection ports 18, 19. Pressure fluid is exhausted through end chambers 20, 21 which are interconnected by a common exhaust passage 22, 23. Chamfers 24, 25 are provided at the seats of the valves 5, 7 to increase the restoring force caused by fluid pressure and assist the spring 14. In a modification the direct lift valves have lobes 26, Figs. 3, 4, covering auxiliary exhaust passages 28 to further increase the rate of flow to exhaust. In another example (not shown) the valves are of larger diameter and cover auxiliary annular exhaust ports.
Patent GB-875704-A (GB)
Title: Improvements in or relating to partition and like structures for buildings
IPC: E04B9/02
Filed: 1959-04-27
Abstract: 875,704. Partitions; suspended ceilings. NICHOLSON, R., and HOLLAND & HANNEN & CUBITTS (GREAT BRITAIN) Ltd. July 31, 1959 [April 27, 1959], No. 14228/59. Class 20(4) Partition panels 43, Fig. 4, are supported in grooves 4 defined by longitudinal fins 3 on hollow posts 1 which are provided, at the lower end, with an extensible pin 7, Fig. 1, adapted to engage the floor and at the upper end, with an abutment portion which may abut against, for example, a wooden member 40, Fig. 3, directly secured to a ceiling or against a ceiling frame member 13, Fig. 1, for a false ceiling. The upper end of the posts may each be provided with a peg 12 which can locate in the ceiling frame members 13 or can be located in the lower end of an extension post when the length of a standard post is insufficient. At each of a number of spaced locations the false ceiling frame members 13 are connected by straps 16 to an inverted channel 19 which is suspended by a turnbuckle 24 from a rectangular bracket 30 which is slotted at 28, 36 where it engages the upper end of the turnbuckle and a bolt 34 in the building ceiling respectively to permit lateral adjustment of the suspension means with respect to the frame members 13. Vertical adjustment of the false ceiling frame members 13 is effected by rotating the nut of the turnbuckle 24 by means of a tommy bar inserted in the hole 37. The frame members 13 may be arranged in grid formation with a hole capable of receiving a peg 12 provided at each intersection. The frame members 13 support ceiling panels some of which may comprise ventilation apertures closed by covers one or more of which can be removed when desired to connect the apertures to ventilation trunking. Electric cables may be run within the posts 1 which may be pierced and tapped at 65, Fig. 1 to receive a switch box 67.
Patent GB-496801-A (GB)
Title: Process for the manufacture of ethers of 2-methyl-2-hydroxy-3-chloro-tetrahydrofurane
IPC: C07D307/20
Filed: 1938-05-13
Abstract: Alkyl ethers of 2-methyl-2-hydroxy-3-chlorotetrahydrofurane are prepared by treating a -aceto-a -chlorobutyrolactone with sulphuric acid and a primary aliphatic alcohol at a moderate temperature, preferably at 40-50 DEG  C.  Examples are given in which the methyl, ethyl and butyl ethers of 2-methyl-2-hydroxy-3-chlorotetrahydrofurane are prepared by treating a -aceto-a -chlorobutyrolactone with sulphuric acid and methanol, ethanol and n-butanol, respectively.
Patent GB-254475-A (GB)
Title: Improvement in and relating to smokers' ash trays
IPC: A24F19/10
Filed: 1925-06-02
Abstract: 254,475. Cross, J. June 2, 1925. Ash-trays.-A smokers' ash-tray a is formed with a metal backing portion b which has upstanding side walls b<2> and is adapted to receive a picture or advertisement d and a glass plate c. The portion b fits about the base a<2> of the tray, which is cut away as at a' to expose the glass c. The edge of the tray may be formed with a dependent supporting flange a'.
Patent GB-1446344-A (GB)
Title: Bis-tetrahydropyranyl-ethers
IPC: C07D317/60
Filed: 1973-07-13
Abstract: 1446344 Prostaglandin derivatives PFIZER Inc 13 July 1973 [13 July 1972] 14449/76 Divided out of 1446341 Heading C2C The invention comprises novel compounds (I), wherein Ar is α- or #-furyl, α- or # thienyl, α- or #-naphthyl, 3,4-methylenedioxyphenyl, 3,4,5- trimethoxyphenyl, or biphenylyl, n is an integer from 1 to 5, with the proviso that when Ar is substituted phenyl, biphenylyl or naphthyl, n is 1, R is hydrogen or alkyl containing 1 to 4 carbon atoms, THP is 2-tetrahydropyranyl, W is a single bond or a cis double bond, and Z is a single bond or trans double bond. Compounds of Formula (I) are prepared by (a) reacting compounds of the Formula (IV) with an ylide of the formula to afford compounds of Formula (I) wherein Ar, R, n, THP and Z are as previously defined and W is a cis double bond, and, when required, subsequently hydrogenating the compound thus formed to afford compounds of Formula (I) wherein Ar, R, n, THP and Z are as previously defined and W is a single bond; (b) hydrogenating compounds of Formula (I), wherein Ar, n, R and THP are as previously defined, W is a cis double bond and Z is a trans double bond, to form compounds of Formula (I) wherein Ar, n, R and THP are as previously defined and W and Z are single bonds; (c) selectively hydrogenating compounds of Formula (I), wherein Ar, n, R and THP are as previously defined, W is a cis double bond and Z is a trans double bond, to form compounds of Formula (I) wherein Ar, n, R and THP are as previously defined, W is a single bond and Z is a trans double bond. Compounds (II) are prepared by reacting (I) with chromic acid in aqueous H 2 SO 4  and acetone. Compounds of Formula (III) are prepared by hydrolysing compounds of the Formula (V) wherein Ar, n, R and THP are as previously defined, R<SP>1</SP> is alkyl containing 1 to 4 carbon atoms, R<SP>11</SP> is alkyl containing 1 to 4 carbon atoms, aralkyl of from 7 to 9 carbon atoms, phenyl or substituted phenyl wherein the substituent is a halogen atom or alkyl containing 1 to 4 carbon atoms, alkoxyl containing 1 to 4 carbon atoms, trifluoromethyl or phenyl with a base.