baber/WOPTO huggingface dataset:
Patent GB-249133-A (GB)
Title: Improvements in electrical condensers
IPC: H01G4/30
Filed: 1926-03-11
Abstract: 249,133. Dubilier Condenser Co. (1925), Ltd., (Assignees of Deventer, H. R. van.). March 11, 1925, [Convention date]. Condensers.-Figs 1 - - 3 show a form comprising a base 1, gasket 8, and glass casing 3 having registering apertures through which securing studs 9 are passed. Within the casing are condenser sections 13, 14 separated by a plate 13 and a plate 15 is mounted on the sections 14 and secured to the base 1 by studs 18 to exert uniform pressure on the sections. An insulating split sleeve 20 having a flange 21 and internal rib 22 encircles a terminal plug 23, the sleeve and plug being inserted in an aperture in the casing so that the shoulder 21 bears on a shoulder 7. The plug 23 passes into an insulating sleeve 26, bearing against a gasket 25, the sleeve 26 extending through an aperture in the plate 15 and enclosing a braided copper wire connecting the plug 23 with the plate 13. Figs. 5 and 6 show a modified form wherein the plates 13, 15 and casing are circular and the bolts 18 are disposed between the sections 12, as shown in Fig. 6, to distribute the pressure more evenly. The sleeve 26 is omitted and mica washers 32, 33 are located between the casing and respectively a flange 31 on the plug 23 and. a fixing nut 34. Figs. 4 and 7 show diagrammatically examples of arrangements of stacks which may be used, that in Fig. 4 comprising conducting and dielectric. sheets 36, 37, the former being connocted in groups 38. Some plates may be isolated, in which case the ter. minals of the groups 38 will be connected one to the plate 13 and the other to the plate 1 or 15, depending one which of the sections 12, 14 contain the isolated plates. In Fig. 7 the condenser plates 39 are in series, with intervening dielectric sheets 40. Specification 249,132 is referred to.
Patent GB-1363962-A (GB)
Title: Warning system for road vehicle lamps
IPC: B60Q11/00
Filed: 1973-02-15
Abstract: 1363962 Lamp failure alarms J SMART 15 Feb 1973 [15 Feb 1972] 6861/72 Heading G4N In a lamp failure alarms system for a vehicle, each lamp to be monitored is connected in series with a respective relay winding, and contacts of all the relays are connected in circuit with a warning lamp which is energized if any one of the monitored lamps fails. Further contacts on the relays are used to switch on an auxiliary lamp in the event of a lamp failure. The relays may be electromagnetic, or alternatively transistor circuits may be used.
Patent GB-1063434-A (GB)
Title: Production of vinyl esters
IPC: C07C69/01
Filed: 1965-02-17
Abstract: Vinyl acetate is prepared from ethylene by reacting under a pressure of at least 50 p.s.i.g. and 50 DEG  C. with an acetic acid solution of a palladium II salt, an ionizable metal acetate, a cupric salt oxidizing agent and a metal chloride or bromide.  The palladium II salt concentration is 0.001 to 0.1 molar, the metal acetate concentration is 0.01 to 2.5 molar, the oxidizing agent is 0.05 to 2.5 molar and the chloride or bromide ion is 0.05 to 0.85 molar. Palladous chloride and bromide, and potassium and lithium chloropalladites are mentioned and the ionizable metal acetates may be alkali metal, alkaline earth metals, ferric, stannic, nickel and cobalt acetates and cupric acetate which may be the source of acetate ions and an oxidizing agent.  Cupric chloride, bromide or acetate may be the oxidizing agent and alkali metal and magnesium chlorides and bromides supply the halide ions.  The reaction may be a continuous cyclic process in two stages, firstly in which vinyl acetate is produced and the working solution partially reduced and the vinyl acetate is stripped therefrom and secondly in which the solution is reacted with oxygen and recycled. The halide ions are preferably removed from the first stage by precipitation as cuprous halide.
Patent GB-1117426-A (GB)
Title: Improvements in or relating to float-operated valve devices for controlling fluid flow
IPC: F16K33/00
Filed: 1966-02-17
Abstract: 1,117,426. Valves. E. A. WINN-JONES. 21 Sept., 1966 [17 Feb., 1966], No. 6908/66. Heading F2V. The float of a cistern supply tank has one or two depending arms secured to a perforated metal or cellular plastic plate which is always submerged and serves to damp out oscillations of the float and valve and hence prevent water hammer.
Patent GB-1128179-A (GB)
Title: Sleeve filter apparatus
IPC: F24F13/28
Filed: 1966-02-17
Abstract: 1,128,179. Gas filter. AIR PREHEATER CO., Inc. 17 Feb., 1966 [24 March, 1965], No. 6962/66. Heading B1T. A gas filter comprises a housing having a plurality of open-ended fabric filter sleeves 16, each extending between two tube sheets and internally supported by one or two helical springs 26, which normally stretch the sleeves radially outwards but can be distorted to permit radial contraction and thus shaking of the sleeves. In Fig. 1, dust-laden gas enters at 12 and passes outwards through sleeves 16. Each sleeve is supported by two oppositely handed springs 26, and these are axially stretched by movement of actuators 28 with consequent radial contraction. Dust then falls from the sleeves into hopper 24. In Figs. 4, 5 (not shown) each sleeve has only one internal spring, whose free end is rotated to effect radial contraction.
Patent GB-780350-A (GB)
Title: Improvements relating to pressure exchangers
IPC: F04F13/00
Filed: 1955-03-10
Abstract: 780,350. Pressure exchangers. SPALDING, D. B. Feb. 27, 1956 [March 10, 1955], No. 7053/55. Class 8(1). Gas admitted to the cells of a pressure exchanger at an inlet stage is compressed as the result of combustion in another part of the gas admitted to the cell at the same inlet stage. Air flows into a cell ring 1 from an inlet 6 the trailing duct wall of which has an injector 7 for injecting fuel into the stream so that the ends of the cells adjacent the end plate 4 contain a mixture of fuel and air which is ignited by a glow plug 10 so that fresh gas is discharged to the duct 11 and exhaust gas to the duct 12. A transfer passage or passages may be provided. If the fresh gas is required to be heated an external combustion chamber may be provided or the fuel supply may be such that air leaving the duct 11 contains hot combustion gas ; the separate exhaust duct may then be eliminated.
Patent GB-598248-A (GB)
Title: Carbonization plant for low temperature carbonization of solid fuels
IPC: C10B1/04
Filed: 1945-03-21
Abstract: 598,248. Retorts for low temperature carbonization. SOC. ANON. LOUVROIL-MONTBARDAULNOYE. March 21, 1945, Nos. 7108 and 7109. Convention dates, April 13, 1942, and April 28, 1942. [Class 55 (i)] [Also in Group XIII] A retort B for the low temperature carbonization of predried coal, lignite, bituminous or oleaginous schists comprises outer and inner vertical tubes 1, 2, between which the fuel descends to a conical base forming an expansion chamber 9 for the distillates and through an extractor 38 to a furnace C in which it is burnt, the outer tubes being surrounded by a chamber 6 in the form of a helical flue heated by combustion gases from furnace C, a furnace 42 and optionally one or more auxiliary furnaces 47. The inner tube which is suspended from a toothed crown wheel 14 slowly rotating on a conical track encloses manifolds 7 for evacuation of gas and oil vapours entering through vents 8 in the tube; a helix 10 projecting into the annular space shields the vents and tends to impart an upward movement to the fuel. Other orifices 18 quincuncially arranged relative to the vents and similarly protected by a helix provide for a flow through the fuel of superheated steam which is supplied to the inter:or of the tube or to separate sections of it from superheaters 50, 52. The distillates are drawn off from a fixed end piece 30 or through a series of louvres forming with expansion chamber 9 an initial separator for dust into a heat insulated separator 33 and thence to condensing apparatus D. The combustion products are drawn from the retort by a fan 40 to a direct-contact drier A, (see Group XIII), the outflow valve 59 of which is operated in synchronism with that of the retort. Modifications in the flow of the heating gases, e.g., in the case of very damp fuels, comprise the passage of all or part of the gases from furnace C over a steam superheater and direct to the drier, the combustion products from furnaces 42, 47 being discharged after passing through the helical flue and over a boiler supplying the superheater. Another system supplies the drier with gases from four sources, furnace C, the retort flue, an additional combustion chamber, and a separate boiler furnace.
Patent GB-976816-A (GB)
Title: Improvements in or relating to spacing stations for pneumatic tube carrier systems
Inventor: KIRK JOHN ROBERT
IPC: B65G51/22
Filed: 1962-02-23
Abstract: 976,816. Pneumatic dispatch apparatus. LAMSON ENGINEERING CO. Ltd. April 25, 1963 [Feb. 23, 1962], No. 7135/62. Heading B8A. In a pneumatic tube carrier system, a spacer station 1, Fig. 1, adapted to receive carriers in succession and release them at predetermined time intervals, comprises a control switch 11 initiated by passage of a carrier into the station to control the immediate release of the carrier and associated with a timing means which controls the entry of a second carrier into the housing for despatch after a predetermined time interval. The station comprises angularly disposed entry and exit tubes 3, 4 and a transfer housing 5 pivoted at 7 for alternate alignment with the tubes 3, 4 by a solenoid device 12, 13 operating through a linkage 14. With the housing 5 in line with the tube 3, the carriers come to rest against a fixed stop 8 and engage the control switch 11 which operates the solenoid 12, 13 through a slow-acting relay. The housing 5 is thereby moved to a position aligned with the tube 4 for release of the carrier, a stop 9 on the housing moving into the path of the tube 3 to prevent entry of a further carrier. After the required time delay, controlled by a delay system (Fig. 4, not shown), the housing is returned into alignment with the tube 3 for receipt of the next carrier. Pairs of delay devices 1 may be incorporated in pneumatic carrier systems to prevent collisions when carriers from more than one source are required to enter a single line, as when transferring carriers from a first ring system to a second ring system. A duplicated time delay relay system (Fig. 6, not shown) controls the operations of the delay devices and is adapted to render one of the switches 10 ineffective until a predetermined time after the other has been operated. Further contacts associated with one of the switches 10 also prevent simultaneous release of carriers from both housings.
Patent GB-540686-A (GB)
Title: Differential mechanism
IPC: B60K17/16
Filed: 1940-04-20
Abstract: 540,686. Differential gearing. FREDERICKSON, C. E. April 20, 1940, No. 7168. [Class 80 (ii)] In a differential gear in which worms 11 gear with planet gears 20 and with gears 14, 15, secured to the ends of a pair of driven shafts. the worms 11 and their bearing blocks 13 are removable and replaceable as a unit. As shown, the casing is in two parts 1, 2, being divided in a plane containing the axis 2-2 of the spider 18. The latter has a bore 26 journalled on the gears 14, 15. Recesses 9 are formed in the casing parts 1, 2, to permit the worms 11 and their bearings 13 to be assembled. The outer surface of the bearings may be part-spherical or rectangular.and the journals 12 on the worms 11 may rotate in the bearings 13. Alternatively the worms may rotate on pins the ends of which are secured in the bearings 13.
Patent GB-742786-A (GB)
Title: Improvements in or relating to a phenol formaldehyde molding powder and method of making the same
Inventor: HEMPEL CHARLES HENRY
IPC: C08J3/12
Filed: 1952-03-20
Abstract: A phenol-formaldehyde resin in he B-stage is formed by reacting the ingredients in aqueous solution, dehydrating and continuing the heating at a temperature not substantially above 95 DEG  C. with violent agitation to cause the product to pass through a syrupy phase, and a soft lumpy phase to a dry powder.  Transparent lightcoloured articles, e.g. parts of milking-machines, may be made by moulding the dry powder.  The condensation may be effected in presence of sodium, ammonium, magnesium or potassium carbonate or potassium hydroxide.  Preferably part of the agitation is carried out under high vacuum.  In the examples, phenol, aqueous formaldehyde and sodium or ammonium carbonate are boiled under reflux for 30 minutes longer than the time required for precipitation of the resin.  The pressure is reduced and water removed by heating at a temperature not materially above 90 DEG  C. When the reaction mixture becomes clear it is transferred to an agitator with a steam jacket and a hood communicating with a vacuum pump and heated with agitation below 95 DEG  C. until a free-flowing powder at the B-stage is produced.  This is cooked by spreading it in large pans.  Its curing time is slightly longer than normal powders, e.g. 10 minutes for a milking-machine inflation shell 1/16 inch thick.
Patent GB-832490-A (GB)
Title: Amino-alcohols and amino-esters
IPC: C07D211/74
Filed: 1957-03-05
Abstract: The invention comprises compounds of the formula <FORM:0832490/IV (b)/1> wherein R1 is a phenyl group bearing alkyl or alkoxy substituents of 1-6 carbon atoms, R2 is hydrogen or an alkyl group of 1-6 carbon atoms and R3 is phenyl, esters of the compounds with saturated fatty acids of 2-7 carbon atoms and acid addition salts of these esters, and their preparation by reacting the appropriate N-phenylethyl-piperidone-(4) with an organometallic derivative of an alkyl- or alkoxy-substituted benzene, for example an organolithium derivative, or in the case of the esters, acylating the compound of the formula I by refluxing with a lower fatty anhydride in pyridine. The compounds are also prepared by reacting a styrene derivative R1-C(CH2.R2)= CH2 with an amine R3.CH2CH2NH2 in th presence of aqueous formaldehyde.  Products are specified in which R1 and R2 respectively have the values (1) m-tolyl, H; (2) o-tolyl, CH3; (3) m-tolyl, CH3; (4) p-tolyl, CH3; (5) o-ethoxyphenyl, CH3; (6) o-methoxyphenyl, CH3; (7) o-tolyl, C2H5; (8) o-tolyl, C3H7 (n); (9) o-ethylphenyl, H.  Acetyl derivatives of these compounds are also referred to.  N - Phenethyl - piperidones - (4) optionally bearing alkyl substituents in the 3-position, used as starting materials, are made by cyclizing an amine of the formula R3CH2CH2N.(CH2CH2COO.Alkyl) CH2CHR2COOAlkyl e.g. by treatment with sodium in xylene and treating the resulting 5-carbalkoxy-N-phenethylpiperidone-(4) with aqueous hydrochloric acid to give the desired piperidone or in the case where R2 is hydrogen, the intermediate ketal which is subsequently hydrolysed.  Tertiary amines of the formula II are made by treating a primary amine R3.CH2.CH2.NH2 with an acrylic ester which may give the tertiary amine directly or in the case when R2 is an alkyl group, the secondary amine is first formed and is treated with an a -substituted acrylic ester.  The Provisional Specification relates generally to compounds wherein R1 is an alkyl, aryl or aralkyl radical.
Patent GB-799480-A (GB)
Title: Improvements relating to mountings for spindles, rods, shafts and the like
Inventor: OXFORD LEONARD GEORGE
IPC: F16B39/34
Filed: 1957-03-05
Abstract: 799,480. Locking rods. SIMMONDS AEROCESSORIES, Ltd. March 5, 1957, No. 7276/57. Addition to 710,530. Class 80 (3). The collar of hard resilient material of the parent Specification is made of polytrifluorochlorethylene or polytetrafluoroethylene.
Patent GB-957057-A (GB)
Title: Improvements in or relating to drawer-type smokers ash-trays
IPC: A24F19/08
Filed: 1961-02-28
Abstract: 957,057. Drawers. GEBR. HAPPICH G.m.b.H. Feb. 28, 1961 [May 3, 1960; Oct. 29, 1960], No. 7280/61. Heading A4B. [Also in Division A2] Roller pairs 4 engaging in opposite side grooves 3 of a drawer-type motor vehicle dashboard ashtray are each retained to the drawer housing 2 by a steel wire spring or springs 11 held by bentover housing portions 12. In Fig. 1 (not shown) the spring means 11 is replaced by a spring strip. The rollers 4 may be of synthetic plastic self-lubricating material and may be unitary or rigid with or free on their axles.
Patent GB-660696-A (GB)
Title: Improvements in fluid traps for vacuum pumping systems
IPC: F04B39/16
Filed: 1949-03-17
Abstract: 660,696. Raising liquids by vacuum. SCHRANZ, R. Jan. 12, 1950 [March 17, 1949]. No. 7305/49. Class 102 (ii). In a vacuum apparatus for raising liquids from a source to a container that is connected to pipe 15, a liquid trap is inserted between pipe 15 and the connection 13 to the source of vacuum to prevent liquid being drawn into connection 13 after the container has filled. The trap comprises a chamber 1 having a float 17 of balsa wood covered with a protective coating, guided on a spindle 18 and carrying a flexible valve disc 19 that co-operates with a seat 14 so that the valve is closed when the liquid in the chamber I reaches a predetermined level. The chamber 1 has an outlet 3 controlled by a flexible valve disc 4 that is loaded by a weight 9 and co-operates with a seat 5, so that it opens when a predetermined amount of liquid has collected in the chamber 1. The apparatus may be used for collecting liquids from parts of the human body.
Patent GB-199114-A (GB)
Title: Improvements in variable speed gearing
IPC: F16H15/46
Filed: 1922-03-14
Abstract: 199,114. Merton, H. B. March 14, 1922. Variable-speed gearing of the kind comprising stepped cones a<1> - - a<3> and b<1> - - b<3> connected by a laterally-movable friction ring D encircling the cones is provided with means for moving the shafts A, B towards and from one another. The shaft B is mounted in sliding bearings b<4>, which are connected by elbow levers F to a rod G pressed by a spring H so as to maintain the transmission ring D in tension. A jockey J takes the weight of the ring D when the shaft B is moved towards the shaft A prior to changing speed. The ring D, which is of H-section, is adapted to be moved laterally by a striker E with forked arms e. A loose step b<1>x is provided to disconnect the drive when the ring D is moved over it.
Patent GB-1096039-A (GB)
Title: Improvements in and relating to escapement mechanisms for timepieces
IPC: G04B15/08
Filed: 1966-02-21
Abstract: 1,096,039. Clocks and watches. CITIZEN TOKEI KABUSHIKI KAISHA. Feb. 21, 1966 [Feb. 19, 1965 (2)], No. 7448/66. Heading G3T. An escapement mechanism for a watch comprises a lever 11 pivoted on an arbor 33 to oscillate between stop positions defined by pins 12, 13, an entry pallet 18 and an exit pallet 19 fixed to the lever, an escape wheel 5 co-operating with the pallets and a permanent magnet 8 placed in a position substantially diametrically opposite the lever with respect to the escape wheel. The function of the magnet is to exert a torque on the escape wheel so that the lever is urged into locked positions at the end of each intermittent stepped rotation of the escape wheel as illustrated in Fig. 2 and Fig. 5 (not shown) and also to resist reverse rotation of the wheel at each release of the entry and exit pallets. For this purpose, a traction wheel 7 made of a magnetizable material such as iron and having teeth 7a is spot welded to the escape wheel. A roller (2), Fig. 1 (not shown) having a flange 2a and an impulse pin 3 is attached to a balance wheel (1) which is of the conventional type used in electronic time pieces in which magnets (1a) co-operate with drive and search coils (not shown) to maintain the oscillation. The impulse pin strikes forks 14, 15 to produce oscillations of the lever 11, the pallets 18, 19 transmitting an intermittent drive to the escape wheel 5. The interaction of the magnet 8 with the iron teeth 7a ensures correct location of the escape wheel at each stopping point of its intermittent rotation. In a modification, Fig. 7 (not shown) two permanent magnets (8a), (8b) are mounted on a plate (43) and their position with respect to the teeth 7a may be adjusted by pivoting the plate about the escape wheel spindle (35). A screw (44) engaging a slot (45) of the plate locks the plate in position. In a second modification, Figs. 8, 9 (not shown), the jaws of a yoke-shaped magnet (8b) are mounted opposite holes (49) cut in the escape wheel and a traction wheel is not required. The holes (49) may be extended to the inner rim of the escapement wheel to form recesses (51) as illustrated in Fig. 10 (not shown).
Patent GB-609287-A (GB)
Title: An improved vulcanizable composition
IPC: C08K5/521
Filed: 1946-03-11
Abstract: Vulcanizable compositions containing co-polymers of isobutylene and diolefins prepared at low temperatures in the presence of a Friedel Crafts catalyst have admixed therein a sulphur-free di- or tri-ester having a minimum of 15 carbon atoms per molecule in aliphatic groups and from 4 to 6 oxygen atoms per molecule. Esters specified are tributyl aconitate, di-(ethylhexyl) sebacate, diamyl azelate, dicapryl phthalate, dioctyl phthalate, dioctyl, and tri-octyl phosphates.  Sulphur, zinc oxide, clay, paraffin wax, stearic acid, tetramethyl thiuram disulphide, selenium tetra-ethyl dithiocarbamate, and mercaptobenzothiazole may be added, and the composition vulcanized by heating. Specifications 513,521 and 565,974 are referred to.ALSO:Vulcanizable butyl rubber compositions contain a sulphur free di- or tri-ester having a minimum of 15 carbon atoms per molecule in aliphatic groups and from 4 to 6 oxygen atoms per molecule, the butyl rubber being one prepared at low temperatures in the presence of a Friedel Crafts catalyst.  Esters specified are tributyl aconitate, di (ethylhexyl) sebacate, diamyl azelate, dicapryl phthalate, dioctyl phthalate, di octyl and tri octyl phosphates.  Sulphur, zinc oxide, clay, paraffin wax, stearic acid, tetramethyl thiuram disulphide, selenium tetra-ethyl dithiocarbamate and mercaptobenzothiazole may be added, and the composition vulcanized by heating.  Specifications 513,521 and 565,974, [both in Group IV], are referred to.
Patent GB-526132-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1939-03-08
Abstract: 526,132. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and TAYLOR, R. March 8, 1939, No. 7573. [Class 40 (iv)] A line circuit is provided with an additional relay P which is energized when a call-finder (not shown) finds the line, connects up the cutoff relay K and remains locked up locally, after its first winding has been disconnected by K, over a second winding which is short circuited by the relapse of K when the calling party clears. If K is released forcibly while the line is still looped, line relay R pulls up again and P remains operated, holds open the marking and starting circuits for the finder and, if desired, gives an alarm. Apart from the modification introduced by the presence of P the circuit is the same as that disclosed in Specification 462,910.
Patent GB-520566-A (GB)
Title: Improvements in and relating to mechanical hammers
IPC: B25D11/06
Filed: 1939-03-09
Abstract: 520,566. Power hammers. BAWLPLUG CO., Ltd. March 9, 1939, No. 7634. Convention date, March 24, 1938. [Class 83 (iv)] A tool 8 is subjected to a succession of blows from a ball 10 cylinder or roller adapted to slide in a tube 1, rotated about an axis 2, the ball moving radially under the influence of a fixed cam 6 shaped to cause continuous outward acceleration of the ball for substantially half a revolution before impact with the tool. The tool passes through a spring supported bush 9, which absorbs the blows when the hammer is moved from the work, and may be attached to the casing by a spring or may be provided with a head 23, Fig. 3, the bush being replaced by a disc 25. A steel hairpin 27, Fig. 5, may be provided to rotate the tool.