baber/WOPTO huggingface dataset:
Patent GB-145721-A (GB)
Title: Arrangement for suppressing the spark produced on breaking a circuit having self induction
IPC: H01H9/54
Filed: 1920-07-02
Abstract: 145,721. Krupp Akt.-Ges., F. Oct. 23, 1915, [Convention date]. Sparking, preventing in circuits containing selfinduction. Such a circuit containing a direct-current source A, Fig. 1, a switch D, and a selfinductive winding C, for example the field winding of a dynamo, is provided, for the prevention of sparking at the switch D, with a direct-current machine having its armature F connected to the terminals of the inductive winding, and its field F<1> independently excited. While D is closed, the machine F runs idly as a motor. At the instant of opening the circuit, the counter electromotive force of the machine is stated to neutralize the sparking voltage. In another arrangement, shown in Fig. 2, the switch H at which sparking is to be suppressed, is shunted by a direct current machine G which starts up when H is opened and throws a counter electromotive force into the circuit.
Patent GB-898361-A (GB)
Title: Radial flow gas turbine engine rotor bearings
Inventor: FROST JOHN CARVER MEADOWS
IPC: B64C39/00
Filed: 1954-06-18
Abstract: 898,361. Aircraft. AVRO AIRCRAFT Ltd. April 19, 1955 [June 18, 1954], No. 18039/54. Class 4. [Also in Group XXVI] A radial flow gas turbine engine for an aircraft having a lentiform structure comprises a compressor 21 including an annular disc-like rotor and having a cylindrical surface 36 of the rotor concentric with the rotors' axis of rotation a complementary cylindrical surface 37 of the stator casing slightly spaced from the rotor's cylindrical surface, annular bearing surfaces 34 of the rotor at each side thereof, and annular plates 39 of the stator casing on each side of the rotor, spaces between the opposed surfaces 36, 37 and 34, 39 providing passages into which air under pressure is introduced for radially and axially supporting the rotor when it rotates. Radial rubbing strips 42 of carbon are inset in upper and lower annular plates 39 and holes 43 admit air to the said passages on the lee side of the rubbing strips when the rotor is rotating. The rotor is thus supported on a cushion of air within one revolution from starting. Specifications 892,401 and 898,358 are referred to.
Patent GB-640135-A (GB)
Title: Improvements in or relating to closure devices for jars and like containers
IPC: B65D51/16
Filed: 1948-07-06
Abstract: 640,135. Stoppers. LAYTON, D. A., and BELL, J. W. July 6, 1948, No. 18145. [Class 125 (iii)] A vacuum closure to be used in fruit bottling &c. comprises a flexible cap 1, with conical skirt 2, a sealing ring 6, a clip member 9 with inturned ends 10 to engage the rim 3 of the container and a member 12 to tension said spring clip. The cap may be fitted on the interior of a 21b. jar or be inserted over the exterior of a 11b. jar, the sealing ring 6 lying between the cap and rim. The member 12 is of S-form, the lower end of the larger loop being placed between two projections 8 in the cap 1, the member being rotated to a vertical position to engage the part 13 with an indentation 11 in the clip 9. Pressure is thus applied to the cap through the larger loop of the member 12. When the cap is inverted over the exterior of a 11b. container the smaller loop of the S-shaped member is used to tension the clip. The sealing ring 6 is retained within the cap 1 by an inturned lip 7.
Patent GB-255880-A (GB)
Title: A process of preparing alcoholates
IPC: C07C29/70
Filed: 1926-07-21
Abstract: 255,880. Loon , C. van, (Assignee of Delsman, C.). July 21, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Alkali metal alcoholates of compounds containing alcoholic hydroxyl groups which with relation to their acidity and small volatility are suitable for the purpose are prepared by evaporating the solution of the hydroxyl containing compound in aqueous alkali hydroxide. The heating is preferably carried out under reduced pressure, and the last portion of the water is expelled by passing a current of non-reactive gas over or through the mass at reduced pressure. Previous to the evaporation, foreign substances may be added serving as catalysts. Examples are given of the preparation of mono- and di-sodium glycolate, hydrogen being used as the non-reactive gas.
Patent GB-1151273-A (GB)
Title: Variable-Area Nozzle, especially for Jet Engines of Supersonic Aircraft
Inventor: KOPP GERHARD
IPC: F02K1/10
Filed: 1967-04-20
Abstract: 1,151,273. Jet propulsion nozzles. ENTWICKLUNGSRING SD G.m.b.H. April 20, 1967 [April 28, 1966], No.18325/67. Heading F1J. A variable area jet propulsion nozzle comprises a series of pivotally mounted flaps the positions of which are controlled by means of rotatable spindles located between the flaps, there being a series of resilient tongues disposed around the nozzle so as to seal the gaps between the flaps. In a first embodiment the nozzle comprises a series of flap members 50 which are pivotally mounted at their forward ends at pivot points disposed tangentially of the nozzle. A series of actuating rods 60 are disposed around the nozzle, the rods being mounted in articulated bearings 70 at the forward ends and in normal bearings 71 at the rearward ends, each rod having a partspherical gear pinion 80 at its forward end, the pinions engaging a ring gear 81 formed on an angularly rotatable ring member which is supported on bearings on a fixed ring member 11. The ring member is rotatable by means of an actuator or motor 90 the shaft of which carries a bevel gear which engages a ring gear 92 on the ring member. The adjusting spindles are formed with slots 61, 62 through which flexible bands 41, 42 pass, the bands being secured at points 45, 46 of the flap members 50, the flap members comprising inner and outer wall portions which converge and meet at their downstream ends. As the adjusting rods are rotated in one direction, the bands are effectively shortened and the flaps 50 move to the convergent form shown in Fig. 3, while when the rods are rotated in the opposite direction the bands are effectively lengthened and the nozzle flaps 50 move outwardly under the action of the gas pressure within the nozzle to the divergent position shown in Fig.1. An outer shell 30 of resilient material formed with longitudinally extending slits 31 so as to define tongues 32 is disposed around the assembly of flaps 50, the tongues 32 acting to seal the gaps between adjacent flaps 50 at all positions thereof. In a second embodiment the adjusting spindles are in the form of screwed rods on each of which is mounted a nut 66 carrying a crosshead 43. The crosshead carries rollers 44 which engage in grooves formed in the sides of adjacent flaps 51. As the rods are rotated the crossheads move axially either forwardly or rearwardly thus causing the flaps to pivot inwardly or outwardly.
Patent GB-126337-A (GB)
Title: Improvements in or relating to Carburettors for Internal-combustion Engines.
Inventor: SPILLER HERBERT WILLIAM
IPC: F02M7/24
Filed: 1916-12-21
Abstract: 126,337. Spiller, H. W. Dec. 21, 1916. Spray carburettors.-In a carburettor in which the suction on the fuel nozzle at high speeds is weakened by the provision of an additional suction conduit connecting the induction conduit with a point in the fuel supply system, the induction end of this suction conduit is situated between the point of fuel admission and the effective air-admission end of the induction conduit, and is adjustable relatively to the said end of the induction conduit. In one form, Fig. 1, the fuel nozzle B has a depending end B<1> in a well C having a calibrated orifice C<1> for the admission of fuel from the float chamber. The additional suction conduit D, which communicates with the choke tube A at D' and with an annular space around the well C, is adjustable by sliding in a stuffing-box F<2>. A drainage orifice E is provided, and the part B<1> of the nozzle has an air-inlet orifice B<2>. A pilot jet G leads to a port G<2> adjacent to the throttle A<2>, and has a depending portion G<3> in a well G<4> similar to the well C and having an air inlet H<1>. In a modification, the wells C, G<4> are omitted, and the conduit D communicates with the top of the float chamber, on which it is pivoted for adjustment. The Provisional Specification states also that the adjustable end of the additional suction conduit may be controllable from the driver's seat; and instead of the end of the conduit being adjustable, a throttle may be provided on the air-admission side of the conduit end; or an adjustable air-leak conduit may communicate with the additional suction conduit.
Patent GB-188360-A (GB)
Title: Improvements in draught gear and buffer mechanism for road vehicles
IPC: B60D1/50
Filed: 1921-07-06
Abstract: 188,360. Chandler, J. H. July 6, 1921. Couplings for road vehicles.-A draught gear and buffer mechanism for road vehicles, adapted to assist a trailer to follow in the track of the hauling unit when turning corners, consists of a duplex device one of which is located at each side of the vehicle and comprises spaced bearings A, A<1> each containing a sleeve B, B<1> adapted to slide therein and fitted with a collar C, C<1> which abuts on the adjacent bearing, a coiled spring H compressed between the collars, other collars D, D<1> on the outer ends of the sleeves B, B<1>, a traction rod E extending through and slidable in the sleeves, and stops F, G at the ends of the rod against which the collars D, D<1> are forced by the spring H, the arrangement causing the spring to be compressed when either end of the rod E is pulled or pushed. Specifications 158,944 and 179,669, [Class 108 (ii), Road vehicles, Undercarriage details &c. for], are referred to.
Patent GB-313576-A (GB)
Title: Improvements in x-ray fracture tables
IPC: H05G1/00
Filed: 1929-06-14
Abstract: 313,576. Victor X-Ray Corporation, (Assignees of Wantz, J. B.). June 14, 1938, [Convention date]. Tension apparatus.-A table 10, for use in setting a fracture and having a number of individually adjustable oil-immersed X-ray units 53, 37, mounted therein, is provided at one end with sockets 59 adapted to receive a traction device for the limb under treatment. The limb is attached to a pivoting lever 61 clamped to a fixed rod. An adjustable perineal peg 57 is also provided.
Patent GB-1494665-A (GB)
Title: Housings for electrical communications devices
IPC: H04B1/38
Filed: 1975-05-02
Abstract: 1494665 Transmitter and receiver housings SIEMENS AG 2 May 1975 [9 May 1974] 18363/75 Heading H3Q [Also in Division H1] A housing for communication device has two L- shaped housing parts 1 and 2 hinged together at 16, one part 1 is arranged to receive parts of a transmitter and the other part is arranged to receive parts of a receiver and each housing part is arranged to receive a plug in RF filter 3 for the radio frequency end of the receiver and transmitter. Each housing part 1,2 is divided by a wall 5 and has chambers for receiving printed circuit boards (44, Fig. 2, not shown) which chambers are closed by a common screw on screening cover 43. The RF filters 3 have tuning elements 13. By loosening screws 19a and 21 one housing part 1 or 2 can be hinged away from the other. Additional components for current supply and monitoring are housed at 15. A cooling rib body (11, Fig. 3, not shown) is arranged to have thermal contact only with the front wall 10 of the transmitting amplifier. The device is suspended on a wall mounting (36, Fig. 4, not shown) by means of tracks (37). The transmitter-receiver device can be mounted on a component (39, Fig. 5, not shown) instead of 30 where the device is to be installed in a water-tight container (Fig. 6, not shown).
Patent GB-1155247-A (GB)
Title: Improvements in or relating to Associative Superconductive Layer Stores.
IPC: G11C15/06
Filed: 1967-04-21
Abstract: 1,155,247. Superconducting associative datastores. SIEMENS A.G. 21 April, 1967 [22 April, 1966], No. 18403/67. Heading G4C. [Also in Division H3] An associative superconductive layer store has the arrangement of Fig. 1 at the intersections of write-in word lines such as 2 and write-in bit lines such as 3. Besides the write-in lines 2, 3 on one side of a superconducting layer 1, there are provided corresponding superconducting word-detect and sampling lines such as 4 and 5 respectively on the other. A bit 1 or 0 is stored as a persistent current in layer 1 with an associated magnetic flux parallel to the diagonal branch shown of the word-detect line 4, with a sense depending on the bit value, the current being produced by pulsing lines 2, 3 both positive or both negative. For an associative search, each bit of the word to be looked for is applied to a respective one of the sampling lines 5 as a positive or negative pulse depending on the bit value. If the bits agree at a given position, the magnetic fluxes from the stored bit and the input bit cancel and the diagonal branch of the worddetect line 4 remains superconducting. A stored word which completely matches the input word has its word-detect line 4 superconducting as a whole. A pulse of either polarity on sampling line 5 will block the other branch 7 of the worddetect line 4 by rendering cryotron 6 resistive. If a given bit position is not to take part in the associative matching, no pulse is applied to sampling line 5 and cryotron 6 leaves branch 7 superconducting. The branch 7 is provided in case parameter variation allowed the stored bit alone to render the diagonal branch of worddetect line 4 resistive at bit positions not taking part. Silicon dioxide layers are vapourized on for insulation. The matrix of cells each as in Fig. 1, on the layer 1 may have alternate cells leftfor-right inverted, the branches 7 each being common to two adjacent cells. Alternatively all the cells may be left-for-right inverted from the Fig. 1 position and the cells in alternate words (rows) top-for-bottom inverted as well. The pulse polarities required in these modifications will be different in part.
Patent GB-604373-A (GB)
Title: Improvements in or relating to steam-boilers fed with combustion air at high pressure
IPC: F22B1/24
Filed: 1945-07-18
Abstract: 604,373. Instantaneous steam generators. SOC. CIVILE D'ETUDES THERMOMECANIQUES. June 18, 1945, No. 18465. Convention date, Sept. 15, 1942. [Class 123(ii)] [Also in Group XII] A water tube boiler comprises a pressure resistant casing 1 enclosing a combustion chamber containing steam generating tubes 16, fuel and combustion air under pressure being supplied to the chamber, the pressure of the combustion gases, and of the steam in the tubes 16, being maintained substantially equal i.e. not more than 1 Kg per square centimetre difference. The combustion air enters by a part 4 at a pressure of at least 10 Kgs per square centimetre, and fuel by a tube 7, the combustion products leaving by a port 5, the water entering by a tube 12, passing through economiser tubes 14, boiler tubes 25, acting as a screen for the casing 1, and into the tubes 16, steam being drawn off through passage 26. A spring-biassed piston 29 with attached link 31 serves to maintain equal pressures outside and inside the tubes 16, the upper face of the piston being acted on by steam pressure, the-lower by the combustion products. The link 31 is attached to a mechanism (not shown) which regulates with the supply of fuel and the pressure of the combusion air. The tubes 16 are arranged along concentric cylinders and are connected so that water flows from the periphery to the centre of the chamber, the tops of tubes in each cylindrical arrangement being connected by junction boxes 17.
Patent GB-799540-A (GB)
Title: Improvements relating to flexible links
IPC: D05B55/14
Filed: 1956-06-14
Abstract: 799,540. Links. PHOENIX-NAHMASCHINEN AKT.-GES. BAER & REMPEL. June 14, 1956 [June 14, 1955], No. 18499/56. Class 80 (3). A flexible link par ticularly for use in serving machines comprises sleeves 34 and 36 connected by a strip or blade 32 with an eye at each end and reinforced over a substantial part of its length between the eyes by additional material 39. The strip may be of steel and may be reinforced by plates or strips suitably attached or by a coating of synthetic plastic material. The strip may also be of plastic material with a central enlargement.
Patent GB-375552-A (GB)
Title: Apparatus for cinematographic projection
IPC: G03B1/22
Filed: 1931-06-26
Abstract: 375,552. Kinematograph apparatus. BOGOPOLSKY, J., 8, Rue du Leopard, Acacias, Geneva, Switzerland. June 26, 1931, No. 18510. Convention date, June 26, 1930. Addition to 280,161, [Class 97 (i), Optical systems &c.]. [Class 97 (i).] In apparatus according to the parent Specification, at least one feed claw may engage the margin of a film in one plane, and at least one shorter feed claw may centrally engage a film in another plane ; all the claws pass through openings in a gate having film paths of different widths and in different planes. As shown, two marginal claws 27 may engage a film 26 held in one plane in a channel-shaped gate member 48 by a removable pressure member 49, and two shorter central claws 29 may engage a narrower film 26a held against the bottom of the member 48 by a pressure member 49a which is substituted for the member 49. The feed sprocket 42 may be changed in accordance with the film in use, and may be held on its spindle by a screwed member.
Patent GB-600035-A (GB)
Title: Improvements in or relating to variable inductors
IPC: G05D3/14
Filed: 1945-07-19
Abstract: 600,035. Induction regulators. SPERRY GYROSCOPE CO., Inc. July 19, 1945, No. 18512. Convention date, July 19, 1944. [Class 38 (ii)] A variable inductor of the kind comprising primary and secondary windings which are relatively rotatable to vary their inductive coupling, has a stator and a rotor wherein means are provided for producing in the air gap between them a magnetic field having a flux density which varies gradually along the circumferential direction of the gap between points of maximum and minimum flux density approximately one pole pitch apart. Preferably, the rate of variation of the magnetic flux density is practically uniform along the circumferential direction of the air gap. The flux variation is predetermined either by varying the number of ampere turns encompassing sections of similar area at different parts of one of the members, preferably the stator, or mounting the rotor in such manner that its surface is eccentric relative to the adjacent face of the stator. Fig. 1 shows a slotted stator 54 provided with two primary coils 63, 64 wound to product two opposite poles, each extending approximately half way around the inner circumference thereof, the winding turns being so arranged that, commencing from the lead-in wire 71 of coil 63, all the turns of that coil embrace the first tooth of the stator, and the nwnber effective along the pole is reduced gradually until the flux density in the air gap adjacent to the last slot is produced solely by the turns thereat. The other primary coil 64 is wound similarly. Each coil terminates at a pair of terminals mounted on the casing, so that the manner of their connection may be altered, the preferred arrangement providing opposite polarities. The secondary winding 84 on the rotor 61 embraces a fraction only of the pole pitch, preferably one-third or one-quarter, so that movement of the rotor from the position shown causes a progressive increase in the coupling between its winding and the primary winding over a range exceeding 150 degrees in either direction. In an eccentric arrangement of the rotor, Fig. 7 (not shown), a pair of lumped primary coils each extend substantially half-way around the circumference of a toothed rotor, and the stator has a single lumped secondary winding of fractional pitch with respect to the primary windings, the eccentricity of the rotor mounting being arranged to locate the wide and narrow parts of the air gap intermediate the two primary windings when the rotor is aligned with those windings symmetrical with the stator winding. The Specification as open to inspection under Sect. 91 comprises also a construction wherein a stator and rotor are each wound with a pair of lumped coils which extend over a pole face area subtending a considerable angle. With this arrangement the output is a linear function of angular displacement within a maximum range of approximately 150 degrees. This subject-matter does not appear in the Specification as accepted.
Patent GB-848589-A (GB)
Title: Improvements relating to cathode heaters
Inventor: FARROW FREDERIC WILLIAM RODBAR
IPC: H01J1/22
Filed: 1958-06-10
Abstract: 848,589. Thermionic cathode constructions. SIEMENS EDISON SWAN Ltd. May 28, 1959 [June 10, 1958], No. 18535/58. Drawings to Specification. Class 39(1). [Also in Group XI] A cathode heater comprises a coiled heating element embraced by a sleeve of refractory electrically insulating material having an external helical protuberance, preferably of hollow form extending along it, which determins the minimum spacing of the heater from the cathode sleeve. The heater may be of hairpin or M-shaped configuration, suitable dimensions being given.
Patent GB-886711-A (GB)
Title: Polyethers and their production
IPC: C08G65/34
Filed: 1959-06-01
Abstract: Polyethers of the general formula <FORM:0886711/IV (a)/1> in which n = 0, 1 or 2; m is a whole number not less than 2; x is H, alkyl or aryl, and R is -CH2- or -CH(CH3)- are prepared by causing a compound of the general formula <FORM:0886711/IV (a)/2> to undergo polyaddition by the action of a Friedel-Crafts catalyst and/or an acid condensing agent at temperatures of 30 DEG -130 DEG C.  In Examples 1-4, polymers of 2-hydroxymethyl-1, 4, 5, 8, -bis-endomethylene -1, 2, 3, 4, 4a, 5, 8, 8a-octahydronaphthalene (obtainable by diene synthesis from allyl alcohol and 2 mols. of cyclopentadiene) are obtained by treatment with boron trifluoride etherate, sulphuric acid or tin tetrachloride etherate.  In Example 5, a -methyl-3, 6-endomethylenetetrahydrobenzyl alcohol is polymerized with boron trifluoride ethereate.  The polymers are solids, insoluble in water, but soluble in styrene and other hydrocarbons.  They have molecular weights between 400 and 1,500.ALSO:Polyethers of the general formula <FORM:0886711/IV (b)/1> are formed by polyaddition at 30 DEG C.-130 DEG C., using a Friedel-Crafts catalyst and/or an acid condensing agent, of a compound of general formula <FORM:0886711/IV (b)/2> In the formulae, n=0, 1 or 2; m is a whole number not less than 2; x=H, alkyl or aryl, and R is -CH2- or -CH(CH3)-.  In Examples 1-4, polymers of 2-hydroxymethyl - 1, 4, 5, 8, - bis endomethylene - 1, 2, 3, 4, 4a,5,8,8a-octahydro-naphthalene (obtained by diene synthesis from allyl alcohol and 2 mols of cyclopentadiene) are produced by treating with boron trifluoride etherate, sulphuric acid, or tin tetrachloride etherate.  In Example 5, a  - methyl - 3, 6 - endomethylenetetrahydrobenzyl alcohol is polymerised with boron trifluoride etherate.  The products are solids with molecular weight between 400 and 1500.