baber/WOPTO huggingface dataset:
Patent GB-615951-A (GB)
Title: Improvements in means for controlling electric motors
IPC: H02H7/085
Filed: 1946-08-21
Abstract: 615,951. Control of motors. TECALEMIT, Ltd., and LE CLAIR, C. C. S. Aug. 21, 1946, No. 25001. [Class 38 (iii)] Safety arrangements.-A motor control gear comprises torque responsive means which automatically reduce the motor current when the load torque exceeds a certain value. As shown, a driving pulley 9 is coupled through a unidirectional device 5 and a differential 6, 16, 7 to the motor 1. The wheel 16 is carried by a spring controlled lever 13 to which an armature 17 is adjustably attached. The core 18 of a choke coil 19 in series with the motor cooperates with this armature so that, for example, as the load torque increases a state of unstable equilibrium is reached and the armature comes into contact with the core. The reactance of the choke is thus increased and the motor current reduced. The member 13 may be arranged to switch an inductive or resistive impedance into the motor circuit.
Patent GB-615068-A (GB)
Title: Improvements relating to door fastenings
IPC: E05B65/22
Filed: 1946-08-22
Abstract: 615,068. Door locks. WILMOT-BREEDEN, Ltd., PALMER, A., and SATCHWELL, F. J. Aug. 22, 1946, No. 25050. [Class 44] A latch, particularly for vehicle doors, comprises a spring-loaded latch bolt, an outside handle movable at right angles to the plane of the door, a spring-loaded slidable member located between and substantially at right angles to the handle and bolt, and a spring- loaded thrust piece pivotally mounted on the slidable member and adapted to impart retractive movement to the bolt. The sliding bolt c, Figs. 1 and 2, is retracted against the force of a spring d by a handle, preferably of the sunken type pivoted to move at right angles to the door. The spring-loaded sliding member h is located between the handle and the bolt, substantially at right angles thereto. On the member h is pivoted an obliquely arranged thrust-piece i which at its free end abuts against a projection j on one side of the bolt c. An outward pull on the handle moves the member h towards the bolt, and the thrust-piece bearing on the projection j retracts the bolt. An inside handle may be provided, secured to a spindle m carrying an arm n adapted to abut against a lateral projection o on the bolt c. To enable the door to be locked, a second bolt p may be provided, operated by means of a pin r thereon engaging in a cam slot q in the arm, which then takes the form of a plate. The shape of the slot is such that the bolt p is not affected when the inside handle is turned to withdraw the main bolt, but is shot when the handle is turned in the opposite sense. A spring detent u holds the arm n in the two alternative positions. If it is required to operate the locking bolt only from outside, the inside handle is arranged to move the main bolt c through the arm n, and a lock w, Fig. 4, preferably of the barrel type, is arranged to actuate the locking bolt p through a crank-pin x engaging a slot y formed in a lug z on the bolt.
Patent GB-1422684-A (GB)
Title: Methylfumaraldehyde monoacetals and process for making them
IPC: C07D319/06
Filed: 1973-05-25
Abstract: 1422684 Cyclic fumaraldehyde monoacetals; retinal BADISCHE ANILIN- & SODA-FABRIK AG 25 May 1973 [26 May 1972] 25107/73 Headings C2C and C2V  The invention comprises cyclic methyl fumaraldehyde mono acetals of the general formula in which R<SP>1</SP> and R<SP>2</SP> are different and denote hydrogen or methyl and R<SP>3</SP> and R<SP>4</SP> together denote a propylene group which may carry C 1 -C 4  alkyl substituents. They may be prepared by oxidizing a methyl derivative of the corresponding hydroxy acetal of formula with a solution of sulphuric acid and chromic acid in acetone. Examples are given of the preparation of 2-methyl-fumaraldehyde-1-(2<SP>1</SP>,2- dimethylpropylene)acetal; 2-methyl-fumaraldehyde - 1 - (1<SP>1</SP>,3<SP>1</SP> - propylene) - acetal; 2 - methylfumaraldehyde - 1 - (2<SP>1</SP>,4<SP>1</SP> - pentylene) - acetal; and 3 - methyl - furmaraldehyde - 1 - (2<SP>1</SP>,2<SP>1</SP>- dimethylpropylene-acetal. The starting material for the first of these compounds is made by treating γ-formyl crotyl acetate with neopentyl glycol to give 2-methyl-4-acetoxy-but-2-en-1- al-(2<SP>1</SP>,2<SP>1</SP>-dimethylpropylene) acetal which is reacted with sodium methylate to give the required hydroxy compound. The cyclic 3- methyl fumaraldehyde monoacetals may be reacted with the ylid of a #-ionylidene ethyl triphenylphosphonium salt, followed by hydrolysis to give retinal.
Patent GB-1410451-A (GB)
Title: Vibratory dispensing devices
IPC: B65G53/12
Filed: 1973-05-25
Abstract: 1410451 Vibrating hoppers/pneumatic discharge of hoppers ABRASIVE DEVELOPMENTS Ltd 25 May 1973 25176/73 Headings B8S and B8A A resiliently supported hopper 1 is vibrated by a vibrator 28 and has an outlet 3 in its base 2, the outlet 3 being registered with a discharge opening 9 in a false bottom 8 also carrying a sieve 10, and a vertical pipe 18 in the hopper being connected to supply pressurized air into the body of the hopper and, via an opening 8a in the bottom 8 and a passage 16 between the bottom 8 and the base 2, to a location downstream of the discharge opening 9 so as to entrain material shaken through the opening 9. As shown the passage 16 is defined by a gasket 14. A baffle 27 prevents material, supplied to the hopper through an inlet 26 from falling into the pipe 18. The hopper is supported either on a gas-filled flexible tube 4 or by a flexible wall  closing the top of a gas-filled trough.
Patent GB-1355151-A (GB)
Title: Magnetic recording and reproducing apparatus
IPC: G11B5/54
Filed: 1972-05-30
Abstract: 1355151 Cassette recorders/players; head mounting arrangements SONY CORP 30 May 1972 [7 June 1971] 25287/72 Heading G5R A cassette recorder/player includes two capstans 20, 21 with opposed pinch rollers 79, 96; at least one recording head 73, 74 and at least one monitoring playback head 72 between the capstans 20, 21; and at least one base head 82, 98 outside the capstans 20, 21, the or each erase head 82, 98 being adjacent a respective pinch roller 79, 96 and movable therewith into the same cassette aperture 25, 29. The pinch rollers 79, 96 together with the erase heads 82, 98 are mounted on levers 78, 95 which are pivoted at 77, 94 and biased by springs 80, 91. Each erase head is tapered, Fig. 7, and comprises half cores 84, 85 defining an air gap 88 in a convex guide surface 87. A concave surface 84a corresponds to the adjacent pinch roller surface. A head holder 83 projects beyond the head 82 to form edge guides (90a, 90b), Fig. 6 (not shown), for the tape 30. The heads and pinch rollers are mounted on a movable plate 71.
Patent GB-856112-A (GB)
Title: Improvements in or relating to the manufacture of gramophone records
IPC: B29C43/02
Filed: 1959-07-23
Abstract: 856,112. Laminated gramophone records. DEUTSCHE GRAMMOPHON G.m.b.H. July 23, 1959 [July 23, 1958], No. 25296/59. Class 40 (2). [Also in Group V] A gramophone record is moulded in a closed mould containing at least one matrix carrying a sound track and at least one first layer of material, e.g. polyvinyl chloride, by injecting a layer of synthetic material into the mould to form a support for the first layer and force it against its matrix to impress the sound track thereon. Two thin foils F of high-grade synthetic material are placed over a pair of matrices M located in a two-part mould S, the mould is closed, and supporting filler material K is injected through D to force foils F against matrices M and form the inner part of the record.
Patent GB-227501-A (GB)
Title: Apparatus for the separation of particles from gas streams
IPC: B01D47/06
Filed: 1923-10-11
Abstract: 227,501. Carty, M. W. Oct. 11, 1923. Smoke and fumes, washing.-Waste gases from boiler furnaces are purified by passing them into a duct having a dead space opposite the entrance of the gas stream, water sprays, and passages between the entrance and the dead space for removal of the purified gas. The furnace gases pass into an uptake 13 divided into ducts 17, 18 by a hopper 14, and the tops of the ducts are closed by a number of separators comprising each a V-shaped or pyramidal compartment 25, Fig. 4, having an arched top wall 25a and side walls 25<d>, which form an apex 25<c> constituting the dead gas space. The gases on entering the separators are sprayed with water from jets 40, 41, and the dust particles being thus concentrated in each apex fall through the passages 26 into the hopper 14, while the purified gas passes over the side walls 25<b> and is drawn off through the uptake 13<a>. Specification 227,196, [Class 8 (ii), Air and gases, Treating &c.], is referred to.
Patent GB-407338-A (GB)
Title: Improvements in and relating to adjustable piston rings
IPC: F16J9/00
Filed: 1932-09-12
Abstract: 407,338. Piston rings. MACKAY, J. S., 5, Wolveleigh Terrace, Gosforth, Northumberland. Sept. 12, 1932, No. 25365. [Class 122 (i).] Adjustable packing for a piston comprises a split ring 1 having an internal coned part 1<a> co-operating with a coned part 3<a> of a sleeve 3, the ring 1 being expanded by forcing it on to the sleeve by means of a retaining ring 2 and a ring 4 screwed on to the sleeve 3. The ring 1 is formed on either side of the split with square abutments 1<b>, 1<c> which fit in a slot 2<a> in the ring 2 to limit the diameter to which the ring can be expanded. The ring 2 has a number of slots of progressively increasing size, or alternatively a single slot is provided which is enlarged as required by filing. In a modification, the ring 2 is screwed on to the sleeve 3 and the ring 4 dispensed with. Locking devices may be provided for preventing movement of the rings 2 or 4 relatively to the sleeve ; a tongue-piece 5 is provided.
Patent GB-313816-A (GB)
Title: Improvements in or relating to the manufacture of artificial textile fibres
IPC: D01F2/00
Filed: 1928-04-03
Abstract: 313,816. Sever, W., and Speakman, J. B. April 3, 1928. Divided on 300,221. Ammoniacal copper and unspecified solutions of cellulose or cellulose derivatives, processes for making filaments form.-Artificial filaments having a curled or crimped form similar to that of wool are prepared fom cellulose or cellulose derivatives by a multiple stage coagulation process in which the temperatures and concentrations of the cellulose solution and of the coagulating baths are such as to cause the outer and inner portions of each filament to undergo different treatment, with the result that the filaments shrink on drying and crinkle or curl individually. The first coagulating bath is diluted or modified so that the filaments are not completely coagulated therein. For example, a cuprammonium solution of cellulose may be spun at a temperature not exceeding 30‹ C. into an aqueous solution of caustic soda or caustic potash of 8‹ Tw. or less, or into an aqueous bath containing sodium or magnesium sulphate in an amount not exceed. ing 3 per cent by weight. Alternatively, substances such as ammonia, cuprammocium hydrate and other cuprammonium compounds. or glucose or other sugar may be added to the initial bath to reduce its coagulating power. The second bath may comprise a dilute aqueous solution of a mineral acid at a temperature not exceeding 30‹C.
Patent GB-217540-A (GB)
Title: Improved adjusting means for the angular position of rotating bodies
IPC: H03J1/14
Filed: 1923-10-12
Abstract: 217,540. British Thomson-Houston Co., Ltd., (Assignees of Ross, E., and Steadwell, E.). June 14, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Angle-measuring instuments.-A knob 2 and shaft 1 impart the coarse adjustment to a rotating body, a second knob 13 being provided for effecting a fine adjustment. On the shaft 12 of the knob- 13 is eccentrically mounted a circular cam 11 provided with a circular groove in which the two prongs of a fork 9 engage. This fork is attached to an arm 4 through which the shaft 1 passes and which is frictionally connected thereto by Washers- 5, 6 and a spring 7.
Patent GB-813901-A (GB)
Title: Improvements in or relating to hermetic sealing of electrical apparatus
Inventor: PLANER GEORGE VICTOR
IPC: H01F27/02
Filed: 1954-09-02
Abstract: 813,901. Transformers. GRESHAM TRANSFORMERS Ltd., and PLANER Ltd., G. V. Aug. 31, 1955 [Sept. 2, 1954], No. 25530/54. Class 38 (2). To hermetically seal electrical apparatus such as a transformer enclosed in a body 11 of flexible cast resin, epoxy resin 10 is placed around the leads 12 where they emerge from the body 11 to reduce risk of leakage along the leads. The epoxy resin may be applied wholly or partly in a depression in the surface of the body 11, Figs. 2, 3 (not shown), or as a layer 17A across the body surface where several leads 12 emerge, Fig. 5. The transformer AT, e.g. an audio frequency transformer may be enclosed in a magnetic screening can C. Suitable flexible resins and epoxy resins are specified. They may contain a filler such as quartz or mica powder. The invention overcomes the result of failure of adhesion between transformer leads and the flexible casting resin used to avoid deleterious effects in the core when pressure is exerted upon changes in temperature.
Patent GB-246076-A (GB)
Title: Improvements in and relating to nozzles particularly adapted for use in lawn sprinklers
IPC: B05B1/30
Filed: 1925-10-13
Abstract: 246,076. Chicago Flexible Shaft Co., (Assignees of Browning, G.). June 22, 1925, [Convention date]. Locking.-A valve 9, 11 more particularly for use in lawn sprinklers is operable from outside the nozzle by means of a handle 18 and is held in any position by means of a. friction clamp comprising a split sleeve 20 screwing into a bushing 17.
Patent GB-453025-A (GB)
Title: Improvements relating to sealing devices for bottle and like containers
IPC: B65D55/02
Filed: 1935-09-16
Abstract: 453,025. Tamper-proof bottle-stoppers. ANCHOR CAP & CLOSURE CORPORATION, 22, Queens Street, Long Island City, New York, U.S.A. Sept. 16, 1935, No. 25630. Convention date, Sept. 17, 1934. Addition to 440,850. [Classes 125 (i) and 125 (iii)] [See also Group V] A temper-proof closure for a bottle &c. has a frangible band 4 combined with a metallic ratchet member 5 which engages with a series of teeth 12 on the inner part of the bottom of the cap 2 when the cap is screwed down. The projections on the member 5 are bent upwardly. The band and ring are locked against relative rotation in at least one direction. Projections 7 and 8 on the bottle neck lock the band 4 against relative rotation. In order to open the bottle it is necessary to break the band 4, by unscrewing the cap. The caps which are moulded from synthetic resin &c. are formed by stripping them from the moulding pin 31, Fig. 10, while the caps are hot with a stripping plate 32. The exteriors of the caps are moulded in an enveloping hob 33.
Patent GB-1274231-A (GB)
Title: Improvements relating to apparatus for controlling the orientation of control members
Inventor: GWYNN ROGER EDWARD
IPC: G05D1/08
Filed: 1968-05-29
Abstract: 1,274,231. Stabilizers. MUIRHEAD Ltd. 21 May, 1969 [29 May, 1968], No. 25692/68. Heading B7M. A control unit for a stabilizer fin 1, 2 comprises means 51 responsive to the motion of a ship and operating means exerting a controlling force on the fin, a further means 35 modifying the response of means 51 in dependence on the controlling force. Gyro 51 causes pivoting of lever 43 about fulcrum 44 and positioning of valve 42 to connect supply line 28<SP>1</SP> to chamber 37 or 38. Control piston 28 moves to open pressure regulator 21 or 24 and also moves piston 27 which connects supply line 28<SP>1</SP> with the regulator. Fluid from the regulator operates units 11, 12 to tilt the fins 1, 2. The movement of piston 28 also moves non-linear cam 35, and cam follower 45 causes pivoting of lever 43 about its end and thus modifies the movement of valve 42.
Patent GB-694932-A (GB)
Title: Improvements in or relating to toggle fastenings
IPC: E05C19/14
Filed: 1951-11-05
Abstract: 694,932. Hasp fastenings. WILLEN KEY CO. (1946) Ltd., WALKER, J., and HARRIS, D. Nov. 5, 1951, No. 25811/51. Class 44. A hasp fastening of the kind described in Specification 551,457 is modified by the provision on the hook 7 of the anchor plate 8 of a curled part 9 loosely retaining the hasp loop 6 from being disconnected therefrom. When the fastening is in the released position the parts e.g. the lid and body of a box may be moved relatively to free securing catches so that the lid may be swung about the hook 7. Aligned openings 31 in the flanges 25 of the operating lever 5 between the pivot pin 24 and the ends 30 of the hasp loop 6 are adapted to receive a split-pin 32 abutting the outer face of the hasp loop 6 to prevent release of the fastener. The split pin is attached to the end 28 of the lever by a cord 33.
Patent GB-1533969-A (GB)
Title: Microwave proving bread utilizing metal pans
IPC: A21B2/00
Filed: 1977-06-21
Abstract: 1533969 Microwave baking ITT INDUSTRIES INC 21 June 1977 [29 June 1976] 25826/77 Heading A2A Bread is baked by preparation of dough, division of the dough into individual loaves, placing the loaves into metal bake pans and thereafter partially providing the loaves by conventional heating and finishing proving the loaves by simultaneously utilising microwave energy and conventional heating.
Patent GB-1504994-A (GB)
Title: Naphthyridinomycin antibiotics and preparation thereof
IPC: C07D487/22
Filed: 1975-06-18
Abstract: 1504994 Naphthyridinomycin antibiotics AYERST McKENNA & HARRISON Ltd 18 June 1975 [20 June 1974] 25890/75 Headings C2A and C2C] A naphthyridinomycin complex is prepared by cultivating the organism, Streptomyces sp. NRRL 8034 in a culture medium containing a source of assimilable carbon and assimilable organic nitrogen and mineral salts and isolating the antibiotic complex from the culture medium. The isolated complex is subjected to chromatography to separate naphthyridinomycin A and B therefrom. Naphthyridinomycin A has the following formula This antibiotic is isolated as a ruby-red crystalline compound having M.P. 108-110 C. (dec.) after crystallization from dry ethyl ether and is characterized in that it (a) has a molecular formula of C 21 H 27 N 3 O 6 ; (b) has the following proportions by weight; C, 60À29%; H, 6À63%; and N, 9À93%; (c) has an ultra-violet absorption spectrum of R max  about 270 nm, 248À5 (MeOH); (d) has a specific rotation ([α]<SP>25</SP>D) of +69À 4  degrees) c=1, CHCl 3 ,); (e) is soluble in water, methanol, acetone, chloroform, methylene chloride, ethyl acetate, and ether; insoluble in hexane; (f) has an infrared spectrum as indicated in Fig. 1 (not shown); (g) has a nuclear magnetic resonance spectrum as indicated in Fig. 2 (not shown); (h) has an Rf of about 0À66 on a thin layer or plate of silica gel when using acetone-n-propanolethylenedichloride (6 : 2 : 3) as the mobile phase and (i) has an Rf of about 0À78 on a thin layer plate of alumina when using benzene - acetone - methanol (7 : 1À5 : 1À5) as the mobile phase. Naphthyridinomycin B has a maximum at about 282 nm. in methanol in its ultra-violet spectrum, has an infra-red spectrum as indicated in Fig. 3 (not shown), has a Rf of about 0À50 on a thin layer plate of silica gel when using acetone-n-propanol-ethylene dichloride (6 : 2 : 3) as a mobile phase and has a Rf of about 0À66 on a thin layer plate of alumina when using benzene-acetone-methanol (7 : 1À5 : 1À5) as the mobile phase. The antibiotic complex or the separated antibiotics may be formulated with a pharmaceutically acceptable vehicle into a pharmaceutical composition. The antibiotic complex or the separated antibiotics may be administered topically to skin infected with pathogenic bacteria to inhibit the infection.
Patent GB-708506-A (GB)
Title: Improvements in or relating to film feeding apparatus
IPC: G03B17/30
Filed: 1952-10-16
Abstract: 708,506. Film-feeding apparatus. KODAK, Ltd. Oct. 16, 1952 [Oct. 20, 1951], No. 25976/52. Classes 97(1) and 98(1) A film-feeding apparatus comprising a chamber for receiving 'a spool of film and from which the film is extruded through a guideway, is provided with a member which is spring- urged into engagement with the underside of the film where it leaves the spool and, as the film is unwound, is forced radially inwards towards the centre of the spool, the said member being linked to a pawl in such a way that the latter engages a ratchet on the spool shaft after a predetermined amount of unwinding and prevents further turning of the spool shaft. As shown, the spool chamber 4 of an extrusion type camera contains a spool of film inserted on the shaft 9, to which shaft are keyed a ratchet 16 and a winding knob 10. The spool flanges 15 and 18 have inwardly projecting beads 33 at their circumference, so that the film F is bowed transversely as it leaves the spool. A film-engaging member 20 is mounted on a shaft 25 and is connected to a pawl 22, also mounted on shaft 25 by an arm 21. A spring 25<SP>1</SP> tends to turn the member 20 in the direction of the arrow B, thus pressing the finger 30 into engagement with the underside of the film and at the same time tends to move the pawl 22 away from the ratchet 16. When the spool of film is inserted into the chamber and the knob 10 rotated so as to turn the spool in the direction of the arrow A, the finger 30 engages the underside of the leading edge of the film and releases it from the flange beads of the spool. As the spool of film is unwound, the film passes through the guideway 37, 38 and is extruded into a take up chamber (not shown) where it forms loose convolutions, and the film forces the member 20 radially inwards towards the centre of the spool against the action of the spring 25'. At the same time the pawl 22 approaches the ratchet 16 and after a given amount of unwinding engages the ratchet and prevents further turning of the spool shaft. The device can be used in projection apparatus.
Patent GB-502824-A (GB)
Title: Outlet valves for flushing cisterns and the like
IPC: E03D1/30
Filed: 1937-09-25
Abstract: 502,824. Valve discharge waterwaste-preventers. JOHNS & CO., Ltd., E., and CORN, E. R. Sept. 25, 1937, No. 26026. [Class 26] A discharge valve fitting for a flushing cistern consists of a disc-valve 19 engaging a seat 8 eccentric with the discharge passage 3, the valve having a hood-like casing 11 with inlet openings 16 for the flushing water. The seating 8 is level with or slightly above the lower edges of the openings 16. The casing has stops 23 to limit the upward movement of the valve so that its face is slightly below the upper edges of the openings 16.
Patent GB-1398987-A (GB)
Title: Selfsustaining roolf structure for a vehicle such as a motorbus
IPC: B62D31/02
Filed: 1972-06-05
Abstract: 1398987 Vehicle roofs SEBIA SA HOLDING 5 June 1972 [24 Jan 1972] 26095/72 Heading B7B [Also in Division F2] A self-sustaining double-walled roof for a motor bus has specially shaped longitudinals 2 extending downwardly from the roof edges which are adapted to be fitted to an upper side wall portion of the bus. Each longitudinal 2 has a wall portion 29, with portions 35, 37 at right angles thereto, by which it is welded to the roof cladding 28, 39 and convex cross members (3- 13) (Fig. 1, not shown) which extend between the longitudinals. Convex and flat portions 38, 36 extending from 35, 37 respectively are connected by a portion 30, adapted for direct welding to the upper girder 34 of a side wall. The roof may be packed with sound insulator 40, and have internal longitudinal and transverse members (14-27) interconnecting the convex cross members (3-13).