baber/WOPTO huggingface dataset:
Patent GB-993328-A (GB)
Title: Improvements in and relating to magnetometers
IPC: G01R33/05
Filed: 1963-02-01
Abstract: 993, 328. Electrical measurements. THOMPSON RAMO WOOLDRIDGE. Feb. 1, 1963 [Feb. 9, 1962], No. 4297/63. Heading G1N. A magnetometer comprises a tube 11, Fig. 1, of relatively low permeability supporting in its interior a strip 10 of material with a relatively high permeability and has two input windings 12 and 13 and two output windings 14 and 15. The tube 11 may be of ceramic, such as ferrite, or steel in which case it is slit longitudinally so that it does not form a shorted turn. The strip 10, which may be wound helically as shown in Fig. 1 or be arranged to form a cylinder with the edges of the strip parallel to the axis of the tube 11, may be of molydenum permalloy (4%Mo 79% Ni remainder Fe), Fig. 5 illustrates a circuit for detecting the magnitude and direction of a magnetic field. The input windings are connected to an alternating source in such a manner that they magnetise the strip 10 in opposite directions and saturate it during part of each half cycle. In the presence of an external magnetic field the two halves of the strip 10 saturate for different lengths of time and an output of twice the input frequency with an amplitude proportional to the field strength is produced across primary winding 20. A D.C. output is produced across resistor 25 by means of detector 24 and smoothing capacitor 26. Capacitors 23 and 19 tune the input and output circuits to reduce power loss. Bias source 41 and variable resistor 42 allow a bias to be applied through windings 14 and 15 so that the direction of the applied field may be determined from the effect of varying the bias. Capacitor 40 prevents the bias flowing through the transformer. Fig. 7 shows a method of constructing a magnetometer. In step 1 the helical strip is inserted in the tube and then annealed in a hydrogen atmosphere at 2100‹F. (step 2). The windings are then mounted and the ends of the tube sealed with a sealing compound such as silastic. The unit may then be embedded in epoxy resin. The construction according to the invention has the advantage that the active material 10 is protected from stresses. The choice of operating frequency for maximum efficiency is also discussed (Fig. 6 not shown). The magnetometer may be of use in vehicle detection circuits. Specification 979,471 is referred to.
Patent GB-664762-A (GB)
Title: Improvements in or relating to thermionic valve circuit arrangements for pulse counting or frequency dividing
Inventor: HORROCKS THEODORE
IPC: H03K23/82
Filed: 1949-02-17
Abstract: 664,762. Electronic counting apparatus. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Jan. 10, 1950 [Feb. 17, 1949], No. 4326/49. Class 106 (i). A pulse-operated frequency divider or predetermined counter employs a plurality of serially-arranged binary stages each comprising two thermionic valves arranged in a circuit having two conditions of stable equilibrium in which each binary stage is associated with a toggle circuit also comprising two thermionic valves arranged in a circuit having two conditions of stable equilibrium and adapted to respond on the operation of the binary stage if the associated binary stage corresponds to the number by which division is required or to the predetermined number or corresponds to a significant digit in the binary form of either number. In a first embodiment a circuit arranged for frequency division by, e.g. 1061, comprises a binary chain of trigger pairs P<SP>1</SP>, Q<SP>1</SP>, R<SP>1</SP>, S<SP>1</SP> (only those corresponding with the significant binary digits of the selected number are shown; thus 1061=2<SP>11</SP>+2<SP>6</SP>+2<SP>2</SP>+2<SP>0</SP>=1024+ 32+4+1= in binary form, 100000100101). Associated trigger pairs P<SP>2</SP>, Q2, R2, S<SP>2</SP>, termed " toggle " circuits, are interconnected to provide the required division. Negative-going input pulses are counted in the normal manner by the binary chain, the toggle circuits being unaffected until the count of 1024, when a negative pulse appearing at the anode A2 of the RH valve of the trigger S<SP>1</SP> is applied to the grid G<SP>1</SP> of the LH, normally non-conducting valve of the toggle circuit S<SP>2</SP> transposing this stage. The consequent negative pulse at the anode A<SP>2</SP> of the toggle is applied to the grid G<SP>1</SP> of the LH valve of the toggle circuit R<SP>2</SP> transposing this stage also. Thus, when another 32 pulses have been counted (i.e. 1056 in all) the transposing of the trigger pair R<SP>1</SP> causes a negative pulse to be applied to the grid G<SP>2</SP> of the now conducting RH valve of the toggle R<SP>2</SP> causing a negative pulse to be sent to transpose the toggle Q<SP>2</SP> rendering it responsive to the 1060th pulse. This prepares the toggle P<SP>2</SP> so that an output pulse is delivered after 1061 input pulses. In another embodiment switching devices between the binary stages and the toggle circuits provide a more flexible arrangement whereby the divisor may be varied.
Patent GB-162126-A (GB)
Title: Improvements in or relating to ships' lights
IPC: B63B19/00
Filed: 1920-02-12
Abstract: 162,126. Utley, T. Feb. 12, 1920. Cabin lights.-In ships' lights in which the glass-holder is hinged to the main frame and is provided with retaining-lugs receiving swinging eye-bolts which are pivoted to the main frame, the outer surface of the retaining-lugs A<2> are equally bevelled or inclined so that the swinging eye-bolts D assume an inclined position relatively to the main frame, thus centralizing the angle of pull so that the glass holder is automatically centred on its seating. The holder may be circumferentially notched to reduce weight, as described in Specification 113,023, and the glass-holder may be provided with a flange constructed as described in Specification 147,333 to engage the usual rubber packing. The invention is equally applicable to dead-lights and a closing-plate may be fitted between the main frame and the glass-holder.
Patent GB-1386775-A (GB)
Title: Welded stud connections
IPC: E01B9/30
Filed: 1971-02-11
Abstract: 1386775 Welding by fusion MOLYNEUX ENG CO Ltd 7 Feb 1972 [11 Feb 1971 3 Sept 1971] 4418/71 and 41160/71 Heading B3R [Also in Divisions F2 and E1] A stud or bolt 11 for attachment by welding to a metal base member 20 has about its end which is to be welded a peripheral groove 14 for accommodating a fillet weld 22, the groove 14 being shaped to leave a frusto-conical end portion 15 of the stud with the large diameter end of the portion 15 forming the extreme end of the stud. The end of the stud has a central projection 17 (or height between 0À01 and 0À10 inch), for location in a punched depression 19 in the base member 20, an annular groove 18 surrounding the projection 17 to accommodate material 21 displaced by the punch. The stud may be threaded, as shown, or may be formed as a rag bolt (43) to be cast into concrete 40 (Fig. 5, not shown). A threaded stud (34) (Fig. 4, not shown), welded to a flange (31) of a supporting girder (32) may be used in fastening a rail clamp (33) holding a rail (30), e.g. for a gantry crane.
Patent GB-490296-A (GB)
Title: Manufacture of tanning agents
IPC: C14C3/20
Filed: 1937-02-15
Abstract: In a process for the production of tanning-agents, reference is made to (1) a synthetic tanning-agent obtained by sulphonating a -methylnaphthalene and dispersing in the product a liquid resin made by alkaline condensation of two mols. of phenol with one mol. of paraformaldehyde, and (2) a synthetic tanning-agent obtained by dispersing a phenolformaldehyde resin in butylnaphthalene sulphonic acid solution.ALSO:Tanning-agents are obtained by mixing (a) products obtained by sulphonating mixtures of natural resins with phenols, or phenolic esters of natural resins, and eliminating a substantial part of the adhering inorganic electrolytes from the sulphonation products, with (b) synthetic tanning agents containing aromatic residues and -SO3H groups.  Suitable components of type (a) are obtainable by the process described in Specification 489,967. Suitable components of type (b) are the sulphonic acids of condensation products obtainable from aromatic compounds such as a phenol, naphthalene or aniline, with a bridge-forming reagent such as an aldehyde, sulphur or sulphur chloride.  In the examples: (1) an aqueous solution of a sulphonated product obtained from pine resin and phenol, as described in Specification 489,967, is mixed with a synthetic tanning - agent obtained by sulphonating a -methylnaphthalene and dispersing in the product a liquid resin made by alkaline condensation of two mols. of phenol with one mol. of paraformaldehyde; (2) an ester prepared from colophony and tricresol is sulphonated, and the product is freed from electrolytes as described in Specification 489,967, it is then mixed with a synthetic tanning-agent obtained by dispersing a phenolformaldehyde resin in butynaphthalene sulphonic acid solution; (3) a mixture of liquid Swedish resin and b -naphthol is sulphonated, and the product is washed with sodium chloride solution of 6-7 per cent strength; an aqueous solution of the product is mixed with a synthetic tanning-agent obtained by treating naphthalene sulphonic acid with formaldehyde, and the mixture is evaporated.
Patent GB-807747-A (GB)
Title: An improved cut-off valve device controlling fluid flow
IPC: F16K17/168
Filed: 1957-02-08
Abstract: 807,747. Valves. BAHCO A. B. Feb. 8, 1957 [Feb. 8, 1956], No. 4486/57. Class 135. The valve-closure 10 which is axially movable to and from its seat 11 is prevented from rotating by flats 17 thereon which co-operate with similar internal surfaces in a ring 20; the valve stem 12 is threaded in a piston 13 which may be manually rotated by a wheel 24, the piston being normally urged against a shoulder 15 by a spring 14. When the valve casing 7 is threaded into a bushing 2, inserted into a container 1 of volatile liquid, a portion 8 thereof abuts a stem 5 and unseats a spring-closed valve-closure 4, and upon the wheel 24 being rotated to open the closure 10 gas flows to a burner 22 from an opening 21 past the valve closures 4, 10. Should the gas pressure exceed a value corresponding to the force exerted by the spring 14, the piston 13, and hence the closure 10, are urged rightwardly to move the latter towards its seat.
Patent GB-192618-A (GB)
Title: Improvements in and relating to centrifugal pumps
IPC: F04D7/04
Filed: 1922-02-17
Abstract: 192,618. Wybrow, S. G. Feb. 17, 1922. Driving-gear; casings.-A centrifugal pump for pumping petrol or other fluids on aircraft &c is driven by a wind motor through a magnetic clutch and has a casing which is sealed except for inlet and outlet ports. The fore end 12 is integral with the cylindrical port 10, Fig. 1, of the casing, the rear end of which is closed by a removable cover 13 with the tubular inlet 15. A tangential outlet 11 is provided. The rotor 16 inside the casing has radial impeller blades 19 and masses of iron or permanent magnets 20 arranged parallel to the axis. A second rotor 22 is mounted outside the casing and carries permanent magnets or electromagnets 28. The rotor 22 is driven by a wind motor and the inner rotor is thus pulled round. The casing has a rearward stream-line extension 29. In the modification shown in Fig. 4, the foreend 12 is separate from the cylindrical casing and is clamped between the port 10 and the cover 26. The iron masses or magnets 20, 28 are arranged radially.
Patent GB-306092-A (GB)
Title: Improvements relating to the distillation of coal for the production of a hard and large coke
IPC: C10B53/08
Filed: 1929-02-13
Abstract: 306,092. Roser, E. Feb. 15, 1928, [Convention date]. Materials for making coke.-In the manufacture of a hard low temperature coke the dry fuel e.g. brown coal, peat, dust coal or slime coal, is mixed with wet bituminous fuel such as coal, the loose mixture being rammed into a retort and distilled of about 600‹ C., forming large pieces of coke having a high volatile content. Coke resulting from the distillation of brown coal or peat may be mixed with the wet bitumen-containing fuel, e.g. an equal amount of wet coal. Reference has been directed by the Comptroller to Specifications 193,061, 195,711 and 288,235.
Patent GB-1362603-A (GB)
Title: Method of manufacturing a semiconductor device
IPC: H01L21/56
Filed: 1972-02-02
Abstract: 1362603 Adhesive composition PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 Feb 1972 [5 Feb 1971] 4894/72 Headings C3T and C3B [Also in Division H1] Specified amounts of γ-amino-propyl-triethoxymonosilane and phenyl triethoxymonosilane are reacted at 100-110‹ C. in the presence of water and then mixed with the diglycidyl ether of 2 : 2-bis-(4-hydroxyphenyl)propane, and optionally an anhydride'type hardener to form a liquid adhesive which is used to bond a semiconductor wafer to a polyimide foil. Details of a heat curing regime are given. An alternative adhesive is a mixture of acryl silane and a styrene compound with a peroxide accelerator.
Patent GB-428321-A (GB)
Title: Improvements in or relating to boxes and like containers
IPC: B65D43/00
Filed: 1934-02-14
Abstract: 428,321. Boxes; hinges. FIDDES, J., Torry Sawmills, Aberdeen. Feb. 14, 1934, No. 4930. [Class 18] [See also Group XXV] In a box having complete binding or local reinforcing wires 16.... 19 between the walls of the box and external cleats or battens 14, the wires are attached to backing members 13, or to the cleats themselves, before the wires and the cleats are secured to the box. The backing members are of thin wood, cardboard, &c., and may be disposed between the wires and the box walls or between the wires and the cleats. Bindings and cleats may be attached to the box walls before the latter are folded up round the box ends. Specification 417,358 is referred to.
Patent GB-800792-A (GB)
Title: Improvements in devices for supplying a fluid from a receptacle to a pad
IPC: B65D47/42
Filed: 1955-02-18
Abstract: 800,792. Reservoir pads. SANITAN INTERESSENTSKABET. Feb. 18, 1955 [Feb. 22, 1954], No. 4978/55. Class 19. [Also in Group XVII] An absorbent pad c of multopren is secured in a pierced socket g that fits on the neck i of a collapsible tube or bottle and can receive a cap a that encloses the pad when the pad is not in use.
Patent GB-105562-A (GB)
Title: Improvements in and relating to Refrigerating and Defrosting Chambers.
Inventor: RAYSON RUSSELL
IPC: F25D17/00
Filed: 1917-04-10
Abstract: 105,562. Rayson, R. April 6, 1916. [Convention date]. Ventilating.conduits: valves.-In refrigerating or defrosting chambers from which circulating air for refrigerating or defrosting is withdrawn at the floor level, the withdrawal ducts 8 are raised above the floor 7, have perforated sides 9 and projecting tops 10, and communicate at one or both ends with wall boxes 13 arranged either for single ducts or for groups. The wall boxes communicate with a main wall duct 14 through pivoted valves 16 set alternately on a common operating-rod 15, so that the air is withdrawn from alternate floor ducts or groups of floor ducts. The perforations in the sides 9 diminish in size towards the ends of the ducts. The wall boxes and main duct may be built in or arranged outside the walle.
Patent GB-701647-A (GB)
Title: Improvements in or relating to camera lens turrets
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: G03B19/18
Filed: 1951-03-02
Abstract: 701,647. Lens turrets. ELECTRICAL & MUSICAL INDUSTRIES, Ltd. March 3, 1952 [March 2, 1951], No. 5055/51. Classes 97(1) and 98(1) The lens carrier of a camera lens turret is rotated, to bring one or other lens into an operative position by a Geneva drive mechanism and is locked in its operative position by a locking pin which is rotated by the Geneva drive mechanism and co-operates with one or a plurality of recesses spaced around the lens carrier. As shown in Fig. 1 the lens carrier 1 is mounted on a spindle 2 rotated within a boss 26 by means of gears 7 and 8 driven by a gear 9 attached to the slotted disc 10, Fig. 2, of a Geneva driving mechanism, the disc 10 being rotated intermittently by engagement within the slots 11 thereof, of pins 13 on a disc 12 driven by gearing from a shaft 16 which is rotated manually or by a suitable motor. The driving disc 12 has locking surfaces 12a engaging correspondingly shaped surfaces 11a of the disc 10 to hold the carrier in a rest period. The carrier is also held, at such period, by engagement of the crescent-shaped end 18, Fig. 1, of a rotatable rod 17 with arcuate depressions 19 in a number of projections round the periphery of the carrier 1, the rod 17 being rotated by gearing 20 driven by the shaft 16 so that the end 18 is clear of the depression 19 when the carrier is to be rotated. Each lens mount 5 has an iris diaphragm adjusted by rotation of a ring 22, Fig. 1, actuated by rotation of a toothed sleeve 23 which engages, through an idler 24 a gear 25 rotatable on the boss 26 and connected to a gear 25a suitably driven. So that the setting of each diaphragm is not changed as the lens is brought into operative position by rotation of the carrier 1 the drive of the gear 25a can be disconnected so as to leave the latter free to rotate. This is effected automatically by a pivoted bell crank 25b, Fig. 2, having at one end a roller engaging a cam 25c carried by the disc 12 and bearing at the other a gear 25d which, on rotation of the crank, connects the gear 25a with a gear carried by a driven shaft 27. Each diaphragm carries a cam 28, Fig. 2, operating a lever 29 pivoted at 30 and moving at its other end over a potentiometer 31 which is arranged to give a distant indication of the diaphragm setting, and, if disused, to operate a servo mechanism to adjust each diaphragm to a pre-determined setting. A disc 32 bearing colour or neutral filters is rotatable behind the carrier 1 by a gear 33. In addition a neutral filter graded circumferentially in density may be rotatably mounted behind the carrier.
Patent GB-266728-A (GB)
Title: Improvements in and relating to overload circuit breakers
IPC: H01H71/50
Filed: 1927-02-23
Abstract: 266,728. Voigt & Haeffner Akt.-Ges. Feb. 23, 1926, [Convention date]. Automatic circuit-breakers &c. operating on overload have interengaging laminations on a member a and switch lever b which parts are normally prevented from separating under the action of springs by forces acting on members c, d in the direction of the arrows. Upon overload, the releasing magnet overcomes these forces and the members a, b separate. In the form shown in Fig. 2, the pivoted switch lever 1 carrying the laminations b. is pressed by hand or otherwise into engagement with a contact 3 and is there held against the action of a spring 9 by the laminations b engaging the laminations a, the laminations a, b being pressed together by the action of a spring 15 on a rod 7 connected to a bell-crank lever 10. Upon overload, the magnet 13 attracts an armature 14 linked to the bell-crank lever 10 and the spring 9 opens the switch.
Patent GB-578205-A (GB)
Title: Improvements in or relating to gravity separators
IPC: A41D27/02
Filed: 1944-03-21
Abstract: 578,205. Separating liquids. AKTIEBOLAGET SEPARATOR. March 21, 1944, No. 5278. Convention date, March 6, 1943. [Class 46]. Apparatus for gravity separation of liquids comprises a container 1, Fig. 1. provided with spaced discs 5 having holes, slots or the like 8 arranged to form channels for the passage of liquid to the spaces between the discs, the liquid mixture being supplied through a feed pipe 2 to a compartment 7 which has a volume considerably greater than that of a space between the adjacent discs. The lighter liquid flows out through a pipe 3 and the heavier liquid through a pipe 4. In a modification shown in Fig. 4, the discs 5 are of conical form, and the lighter liquid is collected in a chamber 13 provided with a steam coil 14.
Patent GB-1165955-A (GB)
Title: Improvements relating to Circular Knitting Machines
IPC: D04B15/78
Filed: 1967-02-03
Abstract: 1,165,955. Knitting-machines. FRANZ MORAT G.m.b.H. 3 Feb., 1967 [16 Feb., 1966], No. 5370/67. Heading D1C. In a circular machine each needle jack can be urged upwards by a spring 4 but is normally engaged by a projection 6a of a spring catch 6. Successive catches are arranged at one of a number of different levels, and each are clipped into the cylinder. Each selecting station comprises a magnet 8 at each of said levels and selectively attracts armatures 6b of the catches. The jacks are therefore released and together with the associated needles urged by the springs into appropriate cam tracks.
Patent GB-347360-A (GB)
Title: Improvements in or relating to hydraulic brake mechanisms
IPC: B60T11/22
Filed: 1930-02-18
Abstract: 347,360. Fluid-pressure brakes. HYDRAULIC BRAKE CO., 2843, East Grand Boulevard, Detroit, Michigan, U.S.A. -(Assignees of Bowen, H. C. ; 2843, East Grand Boulevard, Detroit, Michigan, U.S.A.) Feb. 18, 1930, No. 5421. Convention date, April 12, 1929. [Class 103 (i).] Hydraulic brake mechanism comprises a master cylinder disposed vertically with its upper end open in a liquid reservoir through the top of which extends a plunger for engaging and actuating the piston in this cylinder for producing brake operating fluid pressure. When the plunger 42 is released after operation by the foot pedal it is returned by a spring 67 the lower coils of which maintain a bead 62 on the lower edge of a dirt-excluding boot in engagement with an upturned flange on the closing cap 24 of the reservoir. Operation of the piston 38 by the plunger 42 causes fluid to be forced through a valve 34 mounted in the centre of a valve 31 which maintains the fluid in the brake piping 17 under pressure and delays its return to the cylinder on brake release, by reason of a spring 32 mounted between this valve 31 and the piston 38. During the return of the piston, packing cup 45 uncovers apertures 46 in the piston 38 allowing fluid from the reservoir 12 to enter the cylinder through apertures 43, 44 in the piston and the cylinder and a recess 39 in the piston. When the piston reaches its retracted position an aperture 48 is uncovered in the wall of the cylinder to allow excess fluid to return to the reservoir. The base 21 of the reservoir is screw-threaded on the cylinder between its upper and lower ends. A fluid level indicating stem 24b projects through the filler 24a and is secured to a float 24c. The plunger 42 comprises two parts screwed into one another and having a lock-nut to allow for adjustment. A washer 56 in a groove on the plunger limits the movement of the plunger by abutment against the end of the cylinder 11.
Patent GB-269490-A (GB)
Title: Improved hinge for doors or the like
IPC: E05D11/02
Filed: 1927-02-28
Abstract: 269,490. Koch, H. April 13, 1926, [Convention date]. Hinges. - Door and like hinges have a cup-shaped depression e formed in the upper end of the pin a integral with the lower flap b, the upper pin c having a pointed end h that bears upon the deepest part of the cup which forms an oil bath, oil being introduced through a hole i in the upper socket member. The cap may be lined with a removable member f of any desired thickness.
Patent GB-415418-A (GB)
Title: Improvements in or relating to brake mechanism for velocipedes, motor vehicles and the like
IPC: B62L3/00
Filed: 1933-02-23
Abstract: 415,418. Internal-expanding brakes. BOWKETT, W. N., The Uplands, Kiddemore Road, Brewood, Staffordshire, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Feb. 23, 1933, No. 5541. [Class 103 (i).] In an internalexpanding brake for vehicles in which the brake band or shoes are expanded into the operative position by a cam or lever, both ends of the band 4 or of the jointed arcuate shoes are free, one abutting against the actuating cam 11 or lever and the other abutting against and pivoting in a recess 10 in a stop 9. When released, the brake band or shoes automatically contacts on to internal pins 8 or the like. Specification 278,525, [Class 103 (i)], is referred to.