baber/WOPTO huggingface dataset:
Patent GB-1503237-A (GB)
Title: Disc brakes for vehicles
IPC: F16D55/226
Filed: 1975-07-01
Abstract: 1503237 Disc brakes GIRLING Ltd 1 July 1976 [1 July 1975] 27627/75 Heading F2E A disc brake for vehicles has a friction pad assembly 5 operable directly by a piston 22 and an oppositely disposed friction pad assembly 6 operable indirectly by the reaction on a caliper 17 slidable with respect to a stationary dragtaking member 1; the drag-taking member 1 has a pair of spaced arms 4 extending over the peripheral edge of the disc and having oppositely facing surfaces between which opposite ends of the backing plates 9 of the pad assemblies 5, 6 are guided, the pad assemblies 5, 6 being retained in member 1 against movement in radial and circumferential directions by means of a pair of resilient keeper plates 11 interposed between the oppositely facing surfaces and the ends of the backing plates 9, the plates 11 having ribs 12 of Vee-outline engaged in complementary notches 13 in the backing plates 9. In the embodiment of Figs. 1-4, opposite ends of the plates 11, which are conveniently of metal, are cranked outwardly to form spaced parallel flanges 14 which embrace opposite ends of the arms 4. Pins 15 extend axially through arms 4 and flanges 14 and are coupled thereto by split pins 16. Extensions 23 of the pins 15 are received in resiliently bushed openings 24 in lugs 25 projecting from a radial limb 18 of the caliper 17. The opposite radial limb 19 of the caliper 17 is coupled to the backing plate 9 of pad assembly 6 by two circumferentially spaced pins 26. The limb 18 of the caliper 17, which caliper 17 is of die-cast aluminium is provided with a cylinder 21 in which works the single piston 22. In the embodiment of Figs. 5-8 (not shown) a mounting flange (2) of the drag-taking member (1) accommodates a cylinder (30) in which pistons (31, 32) movable in opposite directions are accommodated. Limb (33) of caliper (17) which is acted upon by piston (32) is of complementary outline to limb (19), which is itself coupled to the backing plate (9) of the friction pad assembly (6) by a single spigot (34). In the embodiment of Figs. 9-12 pins 15 and flanges 14 are omitted and the keeper plates have upper flanges which engage with shoulders 36 on arm 4. The caliper 17 is coupled to the backing plate 9 of pad assembly 6 by means of two spigots 38 and the limb 33 is coupled to the piston 32 by a spigot 39 comprising a plane extension to a bolt 40 screwed through limb 33. The caliper 17 is resiliently biased away from the disc and against rattle by spring clips 41. The calipers 17 of Figs. 5-8, 9-12 may be manufactured as spheroidal graphite iron components.
Patent GB-790386-A (GB)
Title: Process for the manufacture of copper-containing ú´,ú´-dihydroxyazo dyestuffs
IPC: C09B45/36
Filed: 1955-09-28
Abstract: Copper-containing dyestuffs are made by treating o-hydroxyazo dyestuffs of which one o1-position contains an SO3H group and the other a substituent incapable of forming a complex salt or, in the case of naphthalene derivatives such a substituent or a hydrogen atom in b -position and vicinal to the azo link or the 9-position itself of the naphthalene nucleus, with a peroxidic oxidizing agent in a weakly acid, preferably aqueous, medium in the presence of a copper salt in at least the equivalent quantity, and thus exchanging the SO3H group for a hydroxyl group. The dyestuffs may be used as such or after demetallization with e.g. strong acid.  Examples illustrate the preparation of the copper complexes from the following dyestuffs: (1) 5-chloro-2-aminotoluene - 3 - sulphonic acid --> 2 - naphthol-6 - sulphonic acid, 2 - aminotoluene - 3,5 - or 4 - acetylaminoaniline - 2,6 - disulphonic acid --> b  - naphthol, 4,6 - dichloroaniline - 2 - sul-phonic acid --> 1 - naphthol - 4 - sulphonic acid; (2) b -naphthylamine or its 1-sulphonic acid --> 1 - naphthol - 4,8 - disulphonic acid; (3) aniline - 4 - sulphonic acid --> 1 - naphthylamine - 2 - sulphonic acid --> 2 - naphthol - 6 - sulphonic acid; (4) 2 - aminobenzoic acid - 5 - sulphonic acid --> 2 - amino - 5-naphthol - 1,7 - disulphonic acid --> b  - naphthol; and (5) 4,41 - diamino - 3,31 - dimethyldiphenyl - 5,51 - disulphonic acid (1 mol.) --> 2 - naphthol - 6 - sulphonic acid (2 mols.) by treatment in aqueous solution with hydrogen peroxide and copper sulphate, the first dyestuff is subsequently demetallized and used to dye wool by an after-chroming process in bordeaux shades and certain of the other coppered complexes are used to dye cotton in blue or red shades. Specification 660,447 is referred to.
Patent GB-1044423-A (GB)
Title: Valve extension
IPC: F16K15/20
Filed: 1965-06-30
Abstract: 1,044,423. Junction pieces. EATON YALE & TOWNE Inc. June 30, 1965 [Sept. 3. 1964], No. 27769/65. Heading F2G. An extension 10 for mounting by a screwthread 24 on a valve of the kind that is received in the housing 11 and is opened by depressing a valve stem 16, comprises a valve-actuating member 28 disposed within a easing 21 and having a closure member 31 urged by a spring on to a seating 41.
Patent GB-264273-A (GB)
Title: Improvements in bevel gearing
IPC: F16H1/14
Filed: 1925-11-05
Abstract: 264,273. Wolseley Motors, Ltd., and Boden, 0. Nov. 5, 1925. Valve gear.-In bevel gearing for driving overhead cam shafts, a resilient thrust washer F is placed between one or each wheel A, B and its bearing-face. Preferably, the resilient washer is placed between two ball-bearing thrust washers or other hardened steel washers g, h, or between one washer d and the bearing, the rigid washers being pinned to the bearing so that there is no rubbing action on the resilient washer. The resilience of the washer may be limited by the use of a collar &c.
Patent GB-280699-A (GB)
Title: Improvements in centrifugal governor devices
IPC: G05D13/00
Filed: 1926-11-05
Abstract: 280,699. English Electric Co., Ltd., and Deriaz, P. Nov. 5, 1926. Centrifugal governors; fluid relays. -The. masses 20 of a centrifugal governor are carried on an arm 29 of a helical spring 25 the end of which is anchored cantilever-like to the rotating casing 1. Two springs 24, 25, Fig. 3 may be inclined and combined to form. a loop 30 on which the mass 20 is adjustably mounted. Further loading is provided by helical springs adjustably enclosed at their middle point and stretching from one mass to the other, and also by additional springs 37 acting through a lever 39 to press on the spring loops 30, such levers being stopped from acting beyond a certain range by adjustable pins 43. The governor may operate a throttle relay through a fluid pressure system comprising a piston 8 normally balanced by constant pressure fluid supplied to each end of the cylinder 6 the piston rod 9 operating a servo motor to control the prime mover. One end of the cylinder 6 leads through a bore 14 in the piston to nozzles 17 which are usually closed by the curved surfaces of the masses 20 but when the masses move out owing to increase of speed, liquid flows out of the nozzles 17 reducing the fluid pressure on one end of the piston and allowing it to be moved to the left to operated the servo motor until the nozzles are again closed by the curved surfaces of the masses 20 in a new position of equilibrium. The nozzles and piston rotate with the cylinder and casing 1.
Patent GB-1343687-A (GB)
Title: Pentamethyl naphthalene derivatives
IPC: C07C45/34
Filed: 1971-06-15
Abstract: 1343687 Pentamethylnaphthalene derivatives L GIVAUDAN & CIE SA 15 June 1971 [25 June 1970] 27889/71 Heading C2C [Also in Divisions C5 and A5] The invention comprises the compounds of the formula Compounds I, III and IV may be obtained by oxidation of cis-dihydrothujopsene. Compound II may be obtained by hydrogenation of compound I. Compound I may also be obtained from cis-thujopsene. Compounds of the formulµ are also obtained by the oxidation of cis-dihydrothujopsene.
Patent GB-263103-A (GB)
Title: Improvements in or relating to flexible gear wheels
IPC: F16D3/62
Filed: 1926-11-06
Abstract: 263,103. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Hornbostel, L.). Dec. 17. 1925, [Convention date]. Addition to 261,011. Flexible toothed wheels.-The nim 4 and hub 1 of a flexible toothed wheel are interconnected by single or laminated tension springs 6, 7 engaged by lugs 15 on the rim and lugs 17 on the hub, so that, whatever the direction of drive the springs are tightened frictionally upon the hub, the spring reaction increasing rapidly with increased deflection. A hole 3 may receive a crank-pin.
Patent GB-877540-A (GB)
Title: Method of processing polyester film
IPC: B29C48/90
Filed: 1958-09-01
Abstract: In making a film of amorphous polyester resin by the extrusion and subsequent flattening of a tubular film, the polyester film is heated and flattened at a temperature above the glass temperature of the resin of which the film is made but below the sticking temperature of the film.  "Glass temperature" is synonymous with second order transition temperature.  The polyester resin may be an ethylene terephthalate-ethylene isophthalate copolyester with 90%-30% of the former and 10%-70% of the latter, preferably with 90%-40% ethylene terephthalate and 10%-60% ethylene isophthalate, and especially with 75%-60% terephthalate and 25%-40% isophthalate.  The polyester resin may alternatively be an ethylene terephthalate-2, 2-bis [4(-b -hydroxyethoxy) phenyl]propane terephthalate with 90%-30% of the former and 10%-70% of the latter, and especially the 60/40 copolyester with 60% of the former and 40% of the latter.  The process is generally applicable to linear condensation polyester resins with glass temperatures above 50 DEG C. (list given).  In an example, a granulated 75/25 ethylene terephthalate-ethylene isophthalate copolyester resin is advanced as shown via hopper 2 and screw worm 3 into barrel 4, which is heated to from 204 DEG C. at its entrance to 226 DEG C. at its end just before filter 5.  The resin is compressed and fused in <PICT:0877540/IV (a)/1> barrel 4 and advanced through filter 5 into head 6 and die 7 to form a tube 8.  Air or other gas is introduced via 9 to expand the tube, which is cooled in quench tube 11, held at 24 DEG C. by cooling fluid circulated through shell 12.  The tube then passes to heating tube 15, held at 60 DEG -66 DEG C. by a heating fluid circulated through shell 16, is flattened by the rolls 19 and 20, which are surrounded by the oven 21 held at 71 DEG C. (above the glass temperature of the resin but below the sticking temperature of the film), and passes to the windup rolls.  Specifications 766,290 and 877,539 are referred to.
Patent GB-361482-A (GB)
Title: Improvements in or relating to wood material in sheet form for use, for example, as a wearing surface for floors and the like
IPC: E04F15/04
Filed: 1930-09-18
Abstract: 361,482. Materials for furnituremaking. LEWENSTEIN, A. S., Broadway Court, Westminster. Sept. 18, 1930, No. 27968. [Class 52 (i).] A composite sheet suitable for use in tables or other furniture, is made up of wooden strips 14, 15, or blocks 16, separated by layers of cork 13 or similar yielding substance, the whole mounted on a flexible backing such as canvas. The layers of cork, as shown in Fig. 14, may be at intervals greater than the width of a strip. The strips or blocks may be of end-grain or straight-grain wood as desired. The sheet is made by cutting up a composite block of sheets of wood and cork (Fig. 7), the operation being repeated if desired with the sheets so produced. The sheet may be coated with powdered cork. Specifications 361,320 and 362,925, [both in Group XXIII], are referred to.
Patent GB-247671-A (GB)
Title: Improvements in electric motor-starting and like switches
IPC: H02P1/02
Filed: 1924-11-22
Abstract: 247,671. Norballe, H. J. Nov. 22, 1924. Controllers, multiple rocking bar.- Relates to motor starting or like switches wherein a contact-bar 13, Fig. 1 is mounted and operated so as to move with rubbing engagement into face-to-face contact with a number of yielding blocks in succession. According to the invention, the bar 13 mounted on links 14, 15 is operated by a cam 17 having a stepped profile and rotated through a ratchet and pawl by a solenoid 27. An adjustable shield 40 allows the stroke of the ratchet to be varied. In a modification, Fig. 2, the contact bar 51 is shaped to engage two rows of blocks 50 inclined to each other, and a motor and worm drive replaces the solenoid and ratchet. Retarding-devices and automatic releases may be added. The separate contacts may control resistances directly for motor-starting purposes, or may serve as the master switches of electromagnetic contactors.
Patent GB-504115-A (GB)
Title: Arc-lamp irradiating apparatus for therapeutic purposes
IPC: A61N5/06
Filed: 1937-10-14
Abstract: 504,115. Arc lamps; radiation treatment apparatus; reflectors. STAHN, A. Oct. 14, 1937, No. 28009. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 16, 1938.] [Class 39 (i)] [Also in Groups VI and XI] A lamp, particularly for therapeutic purposes, comprises a reflector with two cored electrodes of known type for producing ultra-violet radiation arranged parallel or at a slight angle to each other in the axis of the reflector, and a transformer arranged to supply current at a density of at least 0À26 amperes per square mm. of the cross-section of the electrode; air has free access to the arc. In the arrangement shown, the electrodes 26, 27 are enclosed in a casing 2 furnished with a ventilating hood 13 and are operated by mechanism enclosed in a casing 3 hinged to the casing 2. The casing 2 is pivoted to a stand 1 containing a transformer 19 and provided with a handle 4. The electrode 27 is carried on a bracket 3', Fig. 3, in the casing 3 and the electrode 26 is carried on an arm 29 pivoted at 29<1> in a bearing block 31 mounted on springs 30. To the arm 29 is secured an arm 33 terminating in a sector 34 bearing on a brake block 36 operated by a cam 38 on a spindle 40. The sector 34 can be released by turning the spindle 40 by a handle 41, when the electrode 26 is brought by its own weight into contact with the electrode 27. The electrodes can be separated to strike the arc by raising the sector 34 by means of the cam 38. The reflector 28 is formed as a truncated pyramid with a slot 47 to allow the electrodes to pass when the casing is turned. The reflector is formed with tapering slots 45, Fig. 5, or rows of holes increasing in size towards the axis, or non-reflecting patches of similar shape ; this is stated to render the illumination substantially independent of the distance of the arc from the reflector.
Patent GB-467629-A (GB)
Title: Improvements in or relating to devices for extinguishing cigarettes
IPC: A24F13/18
Filed: 1936-10-15
Abstract: 467,629. Cigarette extinguishers. SCHIFFER, A. Oct. 15, 1936, No. 28019. [Class 130] A handle e is fitted to the movable portion b of a cigarette extinguisher for opening purposes. It also assists in closing the extinguisher by the moment of its mass about the pivot h.
Patent GB-603323-A (GB)
Title: Improvements in method of making battery separators
IPC: B29C51/08
Filed: 1945-10-24
Abstract: 603,323. Battery separators. UNITED STATES RUBBER CO. Oct. 24, 1945, No. 28024. Convention date, Dec. 7, 1944. [ Class 53] [Also in Group V] A separator of the form shown is moulded from a microporous sheet of vulcanized natural or synthetic rubber, or of polystyrene, polyacrylate, polyvinylidene, polyvinyl or polyamide material.
Patent GB-762437-A (GB)
Title: Improvements in mechanism for calibrating pressure gauges
Inventor: FAWCETT JOHN REGINALD
IPC: G01L27/00
Filed: 1954-09-29
Abstract: 762,437. Testing pressure gauges. BIDDEN BERG GAUGE CO., Ltd. Sept. 28, 1955 [Sept. 29, 1954], No. 28049/54. Class 106 (2). In a system for testing pressure gauges wherein a manually-operated plunger C produces. a pressure in pipe-lines a which are measured by a master gauge C<SP>1</SP> and indicated by the gauge A under test, an auxiliary cylinder B and ram are provided whereby the system can be more easily primed to its working pressure.
Patent GB-948848-A (GB)
Title: Improvements in and relating to textile machines
Inventor: HILL MOORE
IPC: D01H1/10
Filed: 1961-08-02
Abstract: 948,848. Double-twist apparatus. JAMES MACKIE & SONS Ltd. July 19,1962 [Aug. 2,1961], No. 28069/61. Heading D1D. In a two-for-one inflow or outflow twister, the material is ballooned between let-off and take-up means by a pair of flyers 2, 4 carried and rotated by spindles 20, 32 the axes of which are parallel but not coaxial, the outer ends of the spindles are journalled in fixed bearings 22, 34 and their inner ends are journalled in a carrier 18 for take-up or let-off means situated between the flyers and within the balloon, each flyer spindle being driven separately by a position drive arranged so that both flyers are rotated at the same speed. By this arrangement, the carrier is positively held against rotation, and the unsupported length of yarn being ballooned around the take-up or let-off package is reduced in comparison with conventional apparatus. In the outflow twister shown, the spindles are driven at equal speeds from a common source through grip-pulleys 26, 38 of equal diameter. The bearings 22, 34 are carried by brackets 24, 36 fixed to the machine frame. Three packages are carried by the member 18 each of which feeds singles yarn through a bore 42 on spindle 32, a radial outlet 44, eyes 8, 6 on flyers 4, 2, a radial inlet 46 and bore 48 in spindle 20 to haul pulleys &c. delivering to a take-up. The packages on the carrier 18 may have brakes to adjust the twist. The disc flyers shown may be replaced by tubular arms. When the invention is applied to an inflow twister, the take-up means is driven in the manner described in Specification 948,847.
Patent GB-1209567-A (GB)
Title: Safety apparatus for use in vehicles
Inventor: CHUTE RICHARD
IPC: B60R21/231
Filed: 1969-06-03
Abstract: 1,209,567. Crash restraint cushions. EATON YALE & TOWNE Inc. 3 June, 1969 [19 July, 1968], No. 28091/69. Heading B7B. An inflatable cushion 34 mounted adjacent the steering wheel is conically shaped so that the torso engages the cushion before the head. The compressed fluid for inflating the cushion may be housed inside it or ducted through the steering column from a remote reservoir.
Patent GB-895629-A (GB)
Title: Measuring device for measuring electrical power and power factor or loss angle at low power factor
IPC: G01R21/08
Filed: 1960-08-15
Abstract: 895,629. Measuring power, power factor or loss angle. ALLMANNA SVENSKA ELEKTRISKA A.B. Aug. 15, 1960 [Aug. 15, 1959; July 8, 1960], No. 28118/60. Class 37. A circuit for measuring power, power factor or loss angle comprises a Hall plate the output of which is reduced to zero by adjustment of an impedance in the circuit, the quantity to be measured being then determined from the circuit parameters. In Fig. 1 the power Pz consumed by a load Z is measured and three parallel circuits, comprising respectively a Hall plate H in the field of an iron core J, a variable-resistance R in series with winding N2, and load Z in series with winding N1 are connected across the supply V. It is shown that the galvanometer deflection alpha=c JH(n1 Jz cos #- n2 Jr), where c is a constant, JH, Jz, JR are the current as shown, # is the phase angle of the load current Jz and n1, n2 are the number of turns of windings N1, N2. R is varied until alpha becomes zero so that n1 Jz cos # - n2 JR = 0, and the power Pz = n2 V.Jz cos # = V.JR-. A circuit for the mean1 surement of power factor or loss angle in a capacitative load Z is shown in Fig. 3 and comprises a winding N on core J in series with Z connected in parallel with a series parallel circuit consisting of the Hall plate H, variable capacitor C and resistances R and RH. It is proved that when capacitor C is so adjusted that the deflection on meter G is zero, tan # (or cos #) where # is the loss angle in load Z is equal to Jc #- = wC.RH provided that R # RH. An in- JH ductive load may replace the capacitative load but the variable capacitor must then be replaced by a variable inductance. A further embodiment employing current and voltage transformers are described (Fig. 4, not shown) and two Hall plates are used in a two-wattmeter connection.
Patent GB-1003950-A (GB)
Title: Process for the production of basic dibenzo-oxepin and dibenzo-thiepin derivatives
IPC: C07D409/06
Filed: 1964-07-08
Abstract: Compounds of the general formula <FORM:1003950/C2/1> in which X is an oxygen or sulphur atom, R is a hydrogen or halogen atom or an alkyl or alkoxy radical and A is a tertiary amino group, and their acid addition salts are prepared by reacting a compound of the general formula <FORM:1003950/C2/2> in which X and R are as defined above and Y represents a halogen atom or a sulphonic acid ester group of the general formula -O-SO2-R1 in which R1 is an alkyl or aryl radical, with a compound of the formula HA, in which A is as defined above, the product being converted, if desired, into an acid addition salt. The invention also comprises the compounds of formula (1) above in which X is oxygen or sulphur, R is hydrogen, and A is the 4-(2-hydroxyethyl)-piperidyl or the 4 - (2 - hydroxyethyl) - piperavinyl-(1) radical.  The compounds of formula (3) above are stated to be novel and may be prepared by reacting ketones of the general formula <FORM:1003950/C2/3> in which R and X are as defined above, with Grignard compounds of the general formula Hal-CH2-CH2-CH2-OR1, in which Hal is a halogen atom and R1 is a methyl, tert-butyl or benzyl radical, to give compounds of the general formula <FORM:1003950/C2/4> The compounds of formula (4) may then be converted to the compounds of formula (3) in the following ways: (a) when R1 is methyl, tert-butyl or benzyl the compounds may be boiled with aqueous HBr to give products of formula (3) in which Y is a bromine atom; (b) when R1 is a methyl or benzyl radical the compounds may be boiled with acetyl chloride in benzene or with alcoholic HCl to give a compound of general formula <FORM:1003950/C2/5> which is then treated with boiling HBr to give compounds of formula (3) in which Y is a bromine atom; (c) when R1 is a tert-butyl radical the compounds may be boiled with alcoholic HCl to give a compound of general formula <FORM:1003950/C2/6> which is then reacted with thionyl chloride to give compounds of formula (3) in which Y is a chlorine atom.  Examples are given. In Example 1 a Grignard compound is prepared from 1 - benzyloxy - 3 - chloropropane and magnesium in ether in the presence of methyl iodide.  In Example 5 a Grignard compound is produced from (3-chloropropyl) tert-butyl ether and magnesium in ether; the (3-chloropropyl) tert-butyl ether is obtained by reacting isobutylene with 1 - chloropropan - 3 - ol in the presence of concentrated sulphuric acid.  In Example 7, the starting material of formula (3) in which X is oxygen, R is hydrogen and Y is -O-SO2-CH3 is obtained by the action of methane sulphonyl chloride on the corresponding alcohol of formula (6).
Patent GB-1066564-A (GB)
Title: Drop-counting tube
IPC: B01L3/02
Filed: 1965-07-02
Abstract: 1,066,564. Drop-delivering apparatus. P. SIMONET. July 2, 1965 [July 3, 1964], No. 28179/65. Heading B8N. A drop - delivering tube, particularly for use in blood transfusions, comprises a tube 1 having end caps 2, 3 and an inlet 5 centrally mounted in the tube. The tube may be of transparent material and the end caps secured by welding. A filter 15 or a pump means may be provided in the tube.