baber/WOPTO huggingface dataset:
Patent GB-803005-A (GB)
Title: Induction heater
IPC: H05B6/02
Filed: 1956-09-10
Abstract: 803,005. Induction heaters for fluids. FORSYTH, C. T. Sept. 10, 1956, No. 27667/56. Class 39(3) An induction heater for fluids comprises a square section core on which are mounted eccentrically conducting plate-like elements forming a secondary assembly. In Fig. 1, the secondary assembly 18 is in two and is secured on a core 14 which also carries a primary winding 16. A partition, preferably of heat insulating material, separates the assembly 18 from the winding 16, and air may be passed through a casing 10 for heating. In a water heater, Fig. 2, a water-tight container 22 for the winding 16 is threaded at 24 and the secondary assembly 18<SP>1</SP> is intended to be immersed in the water. Fig. 4 shows details of the secondary assembly which includes rectangular plates 30, 34 having square central apertures corresponding in size to the cross section of the core 14. The plates are clamped together by bolts and nuts 42, and end plates 48 have lugs and screws for securing the assembly on the core. The spacing between the larger plates 30 permits fluid to flow readily between them for heating.
Patent GB-1440514-A (GB)
Title: Method of copying recorded magnetic signals
IPC: G11B5/86
Filed: 1973-06-11
Abstract: 1440514 Copying magnetic records FUJI PHOTO FILM CO Ltd 11 June 1973 [9 June 1972] 27757/73 Heading G5R A method of copying magnetic records from a master which has a coercive force which increases with decrease in temperature involves cooling the master after recording thereon and prior to copying so that the coercive force is increased by more than 20%. Copying is effected with slave and master tapes by winding them in contact on a common reel and subjecting them to a magnetic transfer field of intensity twice that of the coercive force of the slave. Recording of the master takes place at no more than 50‹ C., copying at not less than - 40‹ C.; the coercive force of the master during copying should be 2À5 to 3 that of the slave. The method is particularly applicable to video master tapes of cobalt-doped γ-Fe 2 O 3  or Fe 3 O 4  with 3-20% wt. Co and with normal coercive force 800 Oe, and to slave tapes of γ-Fe 2 O 3 , CrO 2  or Fe-Co alloy with coercive forces 300, 500, 700 Oe.
Patent GB-534865-A (GB)
Title: Improvements in or relating to a sound motion picturc camera adapted to receive a film magazine
IPC: G03B31/02
Filed: 1939-10-13
Abstract: 534,865. Kinematograph cameras. KODAK, Ltd. (Eastman Kodak Co.) Oct. 13, 1939, No. 27825. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 15, 1940.] [Class 97 (i)] [Also in Group XXXVIII] A sound motion picture camera is adapted to receive a detachable film magazine having sound and exposure apertures and containing a sound drum driven by the film, a support being provided on the camera for maintaining the sound drum in correct relation with the sound optical system, and means on the support for maintaining a uniform film speed at the sound recording point. In the film magazine 13, Fig. 1, the film passes from a supply reel 14 to a driving sprocket 16, a picture exposing aperture 20, rollers 23, a recording drum 33 adjacent a sound exposure aperture 29, the sprocket 16, and a take-up reel 28. The optical system for sound recording comprises a lamp 34, condenser 35, oscillograph 36, aperture plate 38, doublyreflecting prism 39, and focussing lens 40. The sound drum 26, rotated by the film, has a tapered hole 59, Fig. 2, engaging a tapered spindle 43 carried in bearings 44 supported in the camera casing thus holding the drum in correct relation to the sound optical system. The drum thus positively drives the spindle 43 which carries a disc 47 within a heavy oil-filled container 46 freely rotatable on the spindle 43. A tight grip between the spindle 43 and drum 26 is maintained by a leaf spring tending to force the spindle 43 to the left. Once a steady rate of rotation has been attained, the viscosity of the oil produces drag between the disc 47 and the container 46 to damp out any slight speed variations. In order to provide a light lock at the hole 55 through which the spindle 43 is inserted, the magazine wall 56 is provided with a cylindrical collar 67 which lies in a corresponding cylindrical space 68 provided in the drum 26. Alternative methods of coupling the drum to the spindle comprise a cork faced friction clutch, Fig. 3, (not shown), and a toothed dog-clutch connection, Fig. 4 (not shown).
Patent GB-1187853-A (GB)
Title: Improvements relating to Permanent Magnets.
IPC: C22C19/00
Filed: 1967-06-16
Abstract: 1,187,853. Cobalt alloys. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 16, 1967 [June 16, 1966], No.27915/67. Heading C7A. [Also in Divisions C1 and H1] A magnetic Co alloy has the formula M 5  R where M is Co or a combination of Co with one or more of Fe, Cu, Ni, and R is La, Th, a combination of Th with one or more rare earth metals, or a combination of at least 3 rare earth metals, and has a hexagonal crystal structure and a particle size of less than 100 microns. The alloy is made by melting the components M and R, cooling, annealing in a non-oxidizing atmosphere, e. g. at 900-1100 C. in Ar, cooling to room temperature, e. g. by quenching pulversing, and optionally baking. Alloys expemplified are: Co 5  La Co 5  Th Co 4  Cu La Co 3  Fe 2  Th Co 5  Th o . 2  Yo.8  Co 5  La 0À33  Sm 0À33  Th 0À34  Co 5  La 0À5 Ce 0À25  Sm 0À25  It is also stated that if M is Co + Fe, when R is La the maximum Fe content is 5 at. per cent, and when R is Th it is 60 at. per cent.
Patent GB-505759-A (GB)
Title: Method of making rubber hydrohalides and product thereof
IPC: C08C19/16
Filed: 1937-10-14
Abstract: 505,759. Hydrohalogenated rubber. WINGFOOT CORPORATION. Oct. 14, 1937, No. 27946. Convention date, Jan. 26. [Class 70] Rubber hydrochloride and rubberhydrobromide are obtained by passing hydrogen chloride or hydrogen bromide into a solution or dispersion of rubber in a blend of solvents consisting of a petroleum distillate, such as gasoline, and ethyl acetate.
Patent GB-533191-A (GB)
Title: Improvements in and relating to self-centring chucks
IPC: B23B31/12
Filed: 1939-10-16
Abstract: 533,191. Chucks. CRZELLITZER, R. Oct. 16, 1939, No. 28002. [Classes 83 (ii) and 83 (iii)] Bevel closing chucks have a cage 9 interposed between the operating sleeve and the jaws which have a plane bearing surface of large area co-operating with a corresponding surface on the cage. The jaw-bearing member 15 screws with a left-hand thread 3 into the body 1 on which the sleeve 16 has a long bearing relieved at 22. A ring 10 is secured to the body, and a ball race 13 engages an annulus 12 retained by a groove and spring ring 11. The annular end of the member 15 has cruciform slots for the jaws, the branches 6 engaging cross pins 5 in the jaws 4. An annulus 20 carries wires 19 engaging holes 7 in the jaws which are of simple form permitting hardening and grinding. The annulus is retained between the body and the cage. The cage may be made as a casting with slots to facilitate breaking into sections to facilitate machining. The sections may be secured to the sleeve by pins 18.
Patent GB-1122644-A (GB)
Title: Improvements in and relating to fluidizing beds
Inventor: CHERRETT NEIL
IPC: F26B3/08
Filed: 1965-07-01
Abstract: 1,122,644. Fluidised bed reactor. HEAD WRIGHTSON & CO. Ltd. 1 Sept., 1966 [1 July, 1965], No. 28016/65. Heading B1F. [Also in Division F4] A fluidised bed reactor utilising a liquid or gaseous medium comprises a casing 2 divided into segmental zones 9 by radial baffles 9, each zone having axially aligned inlet and outlet openings 10, 11 adjacent the upper and lower limits of the zone which may be selected to communicate with non-axially aligned admission and discharge ports 13, 14 in a tube 12 mounted for rotation and/or sliding in a vertical duct 7 extending axially through the casing 2 and lower wind box. The ports 13, 14 are so spaced axially that on registration of port 13 and inlet 10, the lower outlet and port 14 are not in communication. In a modification, two tubes may be positioned within the duct for independent rotation and a hood of segmental shape is rotatably carried on an upper feed pipe to the duct to allow treatment of a purging gas stream for the removal of toxic materials or recovery of expensive solvents.
Patent GB-1136512-A (GB)
Title: Improvements in and relating to detachable couplings for pressure pipes
Inventor: FURRER EDUARD
IPC: F16L37/12
Filed: 1967-06-17
Abstract: 1,136,512. Pipe couplings. CONTRAVES A.G. 17 June, 1967 [6 June, 1967], No. 28041/67. Heading F2G. A detachable coupling for pipes 1, 2 having external annular bulges 11, 12 comprises a sleeve 4 formed by part cylindrical shells 4a, 4b provided with inward annular shoulders 41, 42 which contact the pipe bulges, and at least one holder ring 5 which is or are pushed over the sleeve and without radial clearance. The latter is formed with a groove 43 for the retention, with axial play, of a sealing sleeve 3 having grooves for sealing rings 31, 32 of rubber-like material and which co-operate with the pipes. The legs 61 of a spring wire clip 6 housed in a groove 50 in the ring 5 are located in a groove 40 formed in the sleeve 4 to prevent endwise movement of the ring. The pipes can be turned and, to a certain degree, angularly deflected relative to each other. The coupling can be adapted for connecting pipes of different diameters, Fig. 3 (not shown).
Patent GB-977983-A (GB)
Title: Improvements in or relating to mechanically operated storage systems
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B66F9/07
Filed: 1961-08-02
Abstract: 977,983. Mechanical selective storage systems. GEO. W. KING Ltd. Nov. 2, 1962 [Aug. 2, 1961], No. 28065/61. Heading B8E. In a storage system (Fig. 1, not shown) for articles such as vehicle engines which are stored on trolleys in separate compartment of a multitier rack, the articles are removable from any selected compartment by the use of a mobile lift, the lifting platform of which carries means insertable into the compartment and engageable with an article therein. The invention provides a suitable mobile lift in which said means comprises a carriage extensible from the platform, which carriage carries a hook-like article-engaging element which is itself movable relative to the carriage. The platform has a pair of parallel rails 17 along which the carriage 19 is movable by a screw-and-nut drive (not shown) towards a corresponding pair of rails 18 in an aligned compartment. A rod 25 pivoted to the carriage 19 at one end has a slidable hook-like member 26 initially carried at its other end. As the carriage 19 moves to the right the arm is pivotal upwardly from an initial position in which its free end is close to rail 18 to the illustrated position in which recess 27 in hook 26 engages a trolley axle 28. Further extension of carriage 19 causes lever 32, Fig. 3, to strike a fixed stop and so be moved to the left against a spring (not shown) and thereby cause links 31, 30, 29 to draw hook 26 back along rod 25. This draws the trolley into such a position relative to carriage 19 that when the latter is retracted the trolley will be fully on the lift platform, the hook being locked in its extreme left position during the retraction by a latch (not shown) which is automatically released during subsequent unloading of the platform at ground level.
Patent GB-475690-A (GB)
Title: Improvements in or relating to lathes and like machine tools
IPC: B23B3/18
Filed: 1936-10-15
Abstract: 475,690. Lathes. DRUMMOND BROS., Ltd., and HARRIS, R. Oct. 15, 1936, No. 28083. [Class 83 (iii)] A lathe or like machine having a stop-bar for limiting the travel of a tool-carrying saddle, is characterized in that a cover is arranged over the stop-bar, being movable with the saddle which carries an abutment to co-operate with the stop-bar, the abutment projecting through an aperture in the cover. The selector stop-bar 11 which is indexed by a hand wheel 15 is supported in L-shaped brackets carried by the front portion of the tray 7. One portion 18 of the cover is attached to the saddle, to move with it over the stop-bar, by a bracket 17. An abutment 6, depending from the saddle, projects through the cover portion 18 and the latter is detachably connected to a further cover portion 20 which slides in supports 23 as the saddle moves.
Patent GB-1277314-A (GB)
Title: Precision multiplier and d.c. to a.c. converter
IPC: G06G7/163
Filed: 1970-06-10
Abstract: 1277314 Multiplying circuits BENDIX CORP 10 June 1970 [17 June 1969] 28174/70 Heading G4G A multiplier circuit for multiplying an A.C and a D.C. signal comprises a field-effect transistor 3 and an impedance 1 connected in series to the source 7 of an A.C. signal V 1 , the control electrode of the F.E.T. being connected to the source 19 of a D.C. signal V 2 . In order to avoid harmonic distortion, the A.C. signal V 1  is attenuated by resistance 11. Amplifier 9 inverts the A.C. signal and presents a low impedance output to the multiplying circuit 1, 3. The D.C. signal V 2  is attenuated by resistance 21 and fed to a temperature-regulated differential amplifier 15 and then through a high-gain amplifier 17 and resistance 25 to the gate of the F.E.T. 3. A D.C. reference signal V R , which preferably varies with V 2 , is inverted by amplifier 9 and used to bias the multiplying circuit 1, 3 to the linear portion of its operating characteristic. This reference signal is fed back to the input of amplifier 15 through resistance 31 in order to reduce dependence of the multiplying circuit on variations in transistor characteristics. The effect of non-linearity is further reduced by applying the reference signal V R  through resistances 33, 37 to the input of amplifier 15 to bias the multiplying circuit to the highest possible level. Feedback of the A.C. signal from the drain terminal D is prevented by capacitances 39, 43, 45. The D.C. component of the output signal from multiplying circuit 1, 3 is eliminated by a blocking capacitor 47. A potentiometer 53, 55, 57 is connected to the source 7 of A.C. signal V 1  and provides a signal which compensates for the bias on transistor 3. This signal is summed with the signal passed by capacitor 47 and fed through resistance 49 to an amplifier 51 which compensates for the initial attenuation of signal V 1  by resistance 11.
Patent GB-628107-A (GB)
Title: Improvements in or relating to the actuating gear of steam-engine distributing valves
IPC: F01L29/02
Filed: 1945-10-25
Abstract: 628,107. Steam-engine valve gear. REIDINGER, A. Oct. 25, 1945, No. 28182. [Class 122(ii)] In a steam-engine valve gear, suitable for a locomotive, the valve spindle 14 is connected by link 57 to the radius rod 42 that carries a block 41 sliding in the guide of expansion link 20. The expansion link 20 is directly mounted on a crank or eccentric 40 driven by the engine and is also supported by links 50 engaging pivots 53 and 51, the latter being fixed to the framing. The throw of the crank or eccentric is equal to the sum of the lap and the lead of the valve. The position of the block 41 in the guide is controlled by the link 69 .one end of which is guided and is actuated by the reversing lever 60. In the arrangement shown, the eccentric 40 is mounted on a separate shaft driven from the locomotive axle by worm gearing 24 37 connected by a shaft 33. The worm gearing 37, expansion link 20 and the radius rod 42 and part of the reversing gear are enclosed in the casing 36. and lubricated. The gearing may be adapted for actuating lift valves or separate inlet and exhaust slide valves.
Patent GB-257452-A (GB)
Title: Improvements in and relating to moulding pistons for open mould presses for making fuel or other briquettes
IPC: B30B15/06
Filed: 1925-11-09
Abstract: 257,452. Debauche, H. Nov. 9, 1925. Hopper - and - plunger machines; cooling apparatus; pressing plungers. - The moulding piston is apertured for the escape of water &c., and is cooled by a current of water or air. Fig. 1 shows one form in which a double central partition 3 forms a chamber 3' into which water escapes through a rearwardlyflared slit in the face 2. On either side of the partition 3 are chambers 4', 4<2> connected by a tube 5 through which cold water is circulated via an inlet 7 and outlet 8. The face 2 may comprise a plate of bronze &c. suitably attached to the plunger body. Fig. 8 shows a modification in which the piston is cooled by an air current and the plate 2 is pierced with a number of slits 9 through which air escapes on retraction of the piston cooling both the plate 2 and the back of the briquette.
Patent GB-601652-A (GB)
Title: Improvements relating to tool holders for lathes and other machine tools
IPC: B23Q35/10
Filed: 1944-08-03
Abstract: 601,652. Lathes. BROCKHOUSE & CO., Ltd., J., and TREVENA, A. Aug. 3, 1944, 1944, No. 28206/47. Divided out of 601,592. Drawings to Specification. [Class 83 (iii)] A lathe tool-holder which may rotate about the axis of the work or wherein the work is rotated about its own axis is adapted for forming on the work a surface of non-circular crosssection and is characterized in that a toolsupporting element is moved towards and away from the work the latter extending within an annular tool driving member provided on its inner peripheral face with a series of angularly disposed abutments engaging successively with a follower on the tool-supporting element. The subject-matter of this Specification is substantially the same so that described in Specification 601,592 but the claims differ and the present Specification also includes the feature that the tool may be rotated around a stationary workpiece to effect the cutting or forming action.
Patent GB-1171014-A (GB)
Title: Calculating Machine.
Inventor: PARKIN ERNEST MALCOLM LOUDON
IPC: G06G1/08
Filed: 1967-06-20
Abstract: 1,171,014. Calculating apparatus. E. M. L. PARKIN. 18 June, 1968 [20 June, 1967], No. 28372/67. Heading G4B. A container and lid are provided with cooperating non-linear scales for performing calculations. The closed end of the container may have a false lid bearing a scale. The lid is rotatable on the container, being held captive by spring action, a rivet, or magnet. An additional scale on the container is partly hidden by the lid, being visible through apertures in the lid or when the lid is withdrawn. The container may be filled with cosmetics, a tape measure or postage stamps. The container may be formed from a printed, lacquered, flat blank by pressing and drawing, from metal by die casting, or from plastics material by injection moulding, diecasting, or vacuum forming. The container carries a snap-on plastics cursor.
Patent GB-1183733-A (GB)
Title: Measuring Assembly for Spectrophotometric Analyzing Apparatus.
IPC: B01L3/00
Filed: 1967-06-20
Abstract: 1,183,733. Spectrometric cells. SMITH KLINE & FRENCH LABORATORIES. June 20, 1967 [June 22, 1966], No. 28517/67. Heading G2J. A sample holder for use in making spectrophotometric measurements comprises a reservoir 29, Fig. 2 having an opening 31, a closure member 32 for sealing the opening 31, and a measurement cell 43, Fig. 3, having opposed transparent side walls which define a fixed path length for an optical beam, and an open top, the cell 43 being provided with an integral or detachable connector 36 which is shaped to engage within the opening 31 and force the closure member 32 into the reservoir 29 so as to for a single sealed chamber. In preparing a sample for analysis a reagent 45 in the cell 43 is first mixed with a diluent liquid 35 in the reservoir by forcing the connector 36 into the opening 31. A specimen is then introduced, by means of a pipette, into the reservoir through a second aperture which is normally sealed by a plug 26. The plug 32 assists in mixing the constituents of the sample within the single chamber. As shown, Fig. 3, the connector 36 is separate from the cell 43 and is attached thereto by an annular ridge 41 snap engaging an annular flange on the cell 43. In a modification, Fig. 6, (not shown), connector (36a) is in sealing engagement with the opening in the reservoir (29a) while the plug (32) is still in place. In order to remove the plug 32 the connector (36a) is merely forced further into the reservoir opening.
Patent GB-1400167-A (GB)
Title: Apparatus for providing a directionally stabilised beam of radiation
IPC: G02B27/64
Filed: 1972-06-19
Abstract: 1400167 Producing optical reference HAMILTON KENT Mfg CO 19 June 1972 [18 June 1971] 28661/72 Heading G1 F [Also in Divisions G2 H1 and H4] Apparatus which provides an output beam stabilized along a path at a predetermined angle to the horizontal comprises a laser 10 and a mirror 24 coupled to a pendulum 34, the pendulum having free movement within a conical volume defined by housing 40, 41, 42. The mirror is mounted to rotate through half the angular displacement of the pendulum. A rod 38 is rigidly fixed to mirror 24 but is loosely coupled through a knife-edge apparatus 37 with pendulum 34. Rod 38 is slidable in aperture 37. Pendulum 34 swings in a damping liquid and can be rendered immovable by an electromagnetically operated pad 66 acting on pendulum 34 through a flexible membrane 42 constituting the base of the conical housing. The beam from mirror 24 is incident on a second mirror 46 before exiting along a desired path. The angle of the second mirror is adjustable. The mirror 24 is supported in a first gimbal 26, 27 and the pendulum 34 in a second gimbal 31, 32, the distance between the axes of the first and second gimbals being equal to the distance from the axis of the second gimbal to the position of the aperture 37.
Patent GB-1498778-A (GB)
Title: Secondary barriers for cargo tanks
IPC: B63B25/16
Filed: 1976-07-09
Abstract: 1498778 Liquefied gas storage SENER TECNICA INDUSTRIAL Y NAVAL SA 9 July 1976 [10 July 1975] 28702/76 Heading F4P To collect leakage from an insulated cargo tank 1, a secondary tank 5 is located therebelow and comprises a rigid outer shell 12, an insulation layer 13 and an inner impervious layer 14, pipes 7, 9 leading from the inner surface of the insulation 4 around tank 1 into tank 5 which has means for discharging collected leakage. The discharge means may be an ejector supplied with fluid from the cargo tank 1, a pipe for admitting an inert gas, e.g. nitrogen to vaporize the collected liquid, or as shown in Fig. 5 a heating coil 24 to vaporize the liquid. As shown, the discharge means may be located in a sump 23. The tank may be open-topped with a flexible skirt 10 extending up to the cargo tank 1, which is mounted on an annular support 3, the pipes 7 draining leakage about the support zone and pipe 9 leakage below the zone.
Patent GB-1302073-A (GB)
IPC: C10M169/00
Filed: 1970-06-15
Abstract: 1302073 Lubricants UNILEVER-EMERY NV 15 June 1970 [16 June 1969] 28880/70 Heading C5F A metal working lubricant comprises a base oil and 5-20 wt. per cent (based on the oil) of the reaction product of a C 1 -C 3  alkanol with a C 32 -C 44  dimer acid, said product containing at least 25 wt. per cent of monoester dimerate. Base oils specified are mineral oils and soybean oil. The ester may be the monomethyl ester of dioleic acid.