baber/WOPTO huggingface dataset:
Patent GB-297894-A (GB)
Title: Improvements relating to devices for the interconversion of mechanical and electrical vibrations
IPC: H04R7/14
Filed: 1927-07-04
Abstract: 297,894. British Thomson-Houston Co., Ltd., Young, A. P., and Hutt, J. July 4, 1927. Diaphragms; magnetic instruments.-Relates to a device for the interconversion of mechanical and electrical oscillations, such as a loud-speaker, microphone or a device used for sound reproducing or recording in connection with gramophones &c., having sliding means for guiding the vibratory element of the kind described in Specification 256,443 in which the vibratory element is centred or guided by an axially arranged pin or rod carried either by the vibratory element or the magnet; and adapted to slide in an axial hole or equivalent guiding device in the other relatively movable element and consists in an arrangement in which the centre of gravity of the vibratory element is substantially coincident either with a guiding bush or collinear with and between a pair of guiding bushes. Fig. 1 shows a construction of loud-speaker having a frustumshaped diaphragm 19 to which are affixed a hollow cone or light spider 30 and a central disc 20. The diaphragm, which is secured by a ring 21 of flexible material to a baffle 29, also carries a ring 24 on which is wound an actuating coil 25 positioned in the annular air-gap 18 of an electromagnet 1. Bushes 26 fixed respectively to the centres of the disc 20 and cone 30 are adapted to slide on a stationary rod 27 fixed to the central part 10 of the electromagnet, the centre of gravity of the moving element being at a point 5 between the bushes 26. In the modification, Fig. 2, the moving element, comprising the diaphragm 19, ring 24 and disc 20, is arranged so that its centre of gravity coincides approximately with the centre hole in disc 20 with which the rod 27 co-operates, the centre of the flexible ring 21 coinciding with the centre of gravity of the moving element. The invention is stated to be particularly applicable to loud-speakers of the types covered by Specifications 231,420, 231,421 245,796 and to be an alternative to the flexible guiding arrangements covered by Specifications 245,796 and 269,804. According to the Provisional Specification, the moving coil may be replaced by a ring armature.
Patent GB-255475-A (GB)
Title: A process for chlorinating ores
IPC: C22B1/08
Filed: 1926-07-15
Abstract: 255,475. Ramen, A. July 15, 1925, [Convention date]. Tunnel furnaces. - Ores are chlorinated or chloridized by heating them in the form of lumps or briquettes on a moving grate in a straight or circular tunnel furnace in admixture with chlorides. In the furnace shown, the briquettes are heated on troughs a provided with side rails b resting on rollers c, heating being effected by burners d, and smoke, chlorine, and volatized chlorine compounds being drawn off at e, f and g respectively.
Patent GB-1102767-A (GB)
Title: Drier
IPC: B01D53/26
Filed: 1965-04-28
Abstract: 1,102,767. Compressed gas drier. VAN PRODUCTS CO. 28 April, 1965 [30 Nov., 1964], No. 17915/65. Heading B1L. A drier for compressed gas comprises a vessel divided by a generally horizontal gas baffle into an upper chamber for receiving a bed of deliquescent desiccant material and a lower chamber, a gas inlet into the lower chamber, and a gas outlet from the upper chamber, the gas baffle defining with the interior wall of the chamber a passage of constricted cross-sectional area for flow of gas from the lower into the upper chamber and for flow of desiccant solution from the upper to the lower chamber, the gas inlet being disposed to direct incoming gas against the lower side of the gas baffle whereby the inlet gas is dispersed in all radial directions. As illustrated in Fig. 1, the gas is admitted through pipe 12 and dispersed by flowing upwardly into contact with the lower side of gas baffle 28 serving as a desiccant support. The gas subsequently passes into the desiccant through an annular zone 36 between the edge of support 28 and the shell 10, where it meets the solution of the desiccant. A baffle 38 and a filler hatch 24 are provided in the upper chamber and an outlet for solution 26 in the lower chamber. The embodiment of Fig. 5 (not shown) is generally similar but the gas baffle and desiccant support (50) is an inverted dished member, and the outlet (14) has a curved portion (55) covered by a screen (56) in place of the baffle.
Patent GB-366854-A (GB)
Title: Improvements in machines for providing wire or the like with a spiral wrapping
IPC: H01B13/08
Filed: 1931-06-23
Abstract: 366,854. Covering cores by winding. WYKES, A. L., Cliff House, Barrow-on- Soar, Leicestershire, and POURTIER, G., 35, Rue Folie-Mericourt, Paris. June 23, 1931, No. 18101. [Class 109.] The wrapping material; e.g. paper, is tensioned by a roller 8a carried upon an arm 5 which is mounted for oscillatory movement about the main axis of the machine. A spring 19 is secured to an extension 5b of the arm 5, and tends to prevent the arm moving from the position shown in full lines in Fig. 3 to the position shown in chain-dotted lines. The platform 7 upon which the supply 8 of wrapping material rests is engaged by a leather or other friction pad 23 carried by a spring-controlled lever 21. In operation, the wrapping.material moves the arm 5 in a clockwise direction, Fig. 3, until a roller 18 carried by the extension 5b engages the lever 21 to liberate the platform 7 from the pad 23. A stop motion, either electrically or mechanically operated, may be provided, and is preferably actuated by the arm 5 returning to the extreme anticlockwise position upon breakage of the wrapping material.
Patent GB-284930-A (GB)
Title: Improvements in locks or latches
IPC: E05C1/16
Filed: 1927-07-08
Abstract: 284,930. Bunn, C. W. July 8, 1927. Latches, sliding.-A spring or springs 18, Fig. 1, is used to steady the two-armed tumbler 17 in addition to the main spring 21 for the latch 3. The latch is slotted at 8 for the tumbler boss and is recessed to receive the tumbler arms which engage tongues 7 on the latch, the tumbler 17 being operated by an inside handle 12. An outside handle operates a one-armed tumbled 22 which engages a shoulder 10 on the latch and is locked by a lever 24. Lever 24 is operated by a handle 26 and is retained in both positions by a spring 27 which passes a dead-centre position. To vary the length of latch while using standard parts, the head 30, Fig. 5, and tail 29 of the latch are made separate and are connected by a riveted strip 31. In a modification, Fig. 6, springs 34 are carried on pins 33 attached to a plate 32 placed between the tumbler 17 and the latch 3.
Patent GB-289669-A (GB)
Title: Improvements in weighing scales
IPC: G01G1/18
Filed: 1927-07-08
Abstract: 289,669. Smith, W. S. July 8, 1927. Counter-scales and the like. - In a weighing scale of the type in which a scale beam is associated with a movable indicator for reading under and over weights, the beam and the indicator carry extensions having resilient extremities united by a connecting element. The scale beam 4, maintained in neutral position by a spring 10, carries a bracket 20 surmounted by a resilient steel strip 21 which, as shown in Fig. 4, is provided with three vertical fingers 23 formed with V-shaped recesses 24, 25. A similar resilient strip 26 is secured to the hub 17 of the indicating arm 18, and the two strips are connected by a link 30 provided at each end with oppositelydirected knife-edges for engagement with the V- shaped recesses. The resilient nature of the link-connection minimizes the transmission of shock to the indicator if a load is applied suddenly to one of the scale pans. The operating connections between the beam and the indicator may be placed on the opposite side of the beam fulcrum 3 or on both sides. Instead of employing the spring 10 to maintain the beam in its neutral position, the pivot of the indicating arm 18 may consist of a rigidly-held torsion strip.
Patent GB-1396059-A (GB)
Title: Method of producing photochromic multifocal spectacle lenses
IPC: C03C4/06
Filed: 1973-04-16
Abstract: 1396059 Multifocal glass lenses CARL ZEISS-STIFTUNG [trading as CARL ZEISS] 16 April 1973 [2 May 1972] 18174/73 Heading C1M [Also in Division G2] In the manufacture of a fused multifocal lens of photochromic glass, a reading glass segment 2, Fig. 9 or Fig. 3 and photochromic glass major lens 4 or 7 are brought into position for fusing, heated together to a heat treatment temperature range in which separation areas determining the photochromic properties of the glass are formed, 550 C. to 650 C., thereby fusing the parts together and subsequently cooling the parts rapidly so that the retention time in the heat treatment range is less than about 10 hours, the time sufficient to produce a turbidity in the glass. The reading segment may be of non-photochromic glass and both glasses may be of previous non-heat-treated photochromic glass and the photochromic areas of the glass are fully established by a further heating and cooling cycle. The reading segment 2 with polished surface 3 may be positioned on a support 1 in a metal ring 6 and the lower melting point glass 4 pressed downwardly after the heating step by a ram 2. Alternatively, the glass 7 may be provided with a polished recess 8 and the segment 9 of lower melting point glass positioned thereover by a metal alloy ring 10 which melts at about the temperature of softening of the segment 9 to flow off the convex surface of the glass 7 as the segment 9 sinks into the recess 8.
Patent GB-238072-A (GB)
Title: A method of utilizing vitriolic sludges obtained from the refining of hydrocarbons
IPC: C01B17/58
Filed: 1924-07-30
Abstract: Sulphuric-acid sludges obtained in the refining of hydrocarbons are neutralized by adding the sludge gradually to solid sodium carbonate, lime, calcium or barium carbonate, or calcium sulphide.  The neutralized sludge may be heated up to 400 DEG  C., whereby organic matters, principally unsaturated hydrocarbons, are distilled off.ALSO:Sulphuric acid sludges obtained in the refining of hydrocarbons are neutralized by adding the sludge gradually to solid sodium carbonate, lime, calcium or barium carbonate or calcium sulphide, sulphuretted hydrogen being liberated in the last case. The neutralized mass with the addition if desired of coal, sawdust, residues, or the like, or inert materials is then heated for instance to 700-1100 DEG  C. to obtain sulphides.  The acid sludge may be first treated to recover a part of the sulphuric acid by any method, or may be heated to produce a quantity of sulphur dioxide; and the heating of the neutralized sludge may be effected in stages, the first heating being for instance up to 400 DEG  C. whereby organic matters, principally unsaturated hydrocarbons, are distilled off, and then to the higher temperature required for the production of the sulphides. When the acid sludge is first heated to produce sulphur dioxide, the neutralization may be effected with a sulphide obtained from a preceding operation and the sulphuretted hydrogen liberated in reacted with the sulphur dioxide to obtain sulphur.ALSO:Sulphuric acid sludges, obtained in the refining of hydrocarbons are neutralized by adding the sludge gradually to solid sodium carbonate, lime, calcium or barium carbonate or calcium sulphide, sulphuretted hydrogen being liberated in the last case.  The neutralized mass with the addition if desired of coal, sawdust residues or the like, or inert materials, is then heated for instance to 700-1100 DEG  C. to obtain sulphides.  The acid sludge may be first treated to recover a part of the sulphuric acid by any method, or may be heated to produce a quantity of sulphur dioxide; and the heating of the neutralized sludge may be effected in stages, the first heating being for instance up to 400 DEG  C., whereby organic matters, principally unsaturated hydrocarbons, are distilled off, and then to the higher temperature required for the production of the sulphides, or the product of the first heating, consisting of a mixture of a sulphate and carbon, may be used instead of the sodium sulphite and carbon mixture employed in the manufacture of glass.  When the acid sludge is first heated to produce sulphur dioxide, the neutralization may be effected with a sulphide obtained from a preceding operation and the sulphuretted hydrogen liberated is reacted with the sulphur dioxide to obtain sulphur.
Patent GB-146414-A (GB)
Title: Convertible table adapted to be used for drawing or other purposes
IPC: A47B85/02
Filed: 1920-07-02
Abstract: 146,414. Lill, A. Jan. 30, 1919, [Convention date]. Tables convertible into drawing-desks.- The top of a table is adapted to be arranged horizontally for ordinary use or inverted and inclined for use as a drawing- board. The top a is hinged between lateral supports d connected by links f to the table frame b to enable the parts to' occupy either of the positions shown. The front supports i have pivots n, which can be connected to and disconnected from the top a. and the supports may be made in telescopic parts held in adjustment by sleeves l tightened by screws. The spindle k on which the front supports i are mounted is held in adjusted position by a screwtightened clamping-collar tightened by a spring and loosened by a cord passing over pulleys and operated by a pedal.
Patent GB-1270639-A (GB)
Title: Method of treating cheese pulp
IPC: A01J25/11
Filed: 1970-04-17
Abstract: 1,270,639. Preparing cheese. MKT-TEHTAAT OY. 17 April, 1970 [5 March, 1970], No. 18436/70. Heading A2B. A method of treating cheese pulp for manufacturing cheddar-type cheese comprises pouring the cheese pulp from a cheese kettle into a draining vat where the greater part of its whey content is removed to produce a cheese mattress that remains on the bottom of the vat, subjecting the mattress to preliminary pressing to remove residual whey, air and other gases and to compact the cheese mass for cheddaring to start rapidly and efficiently, the preliminary pressing being continued until the desired degree of cheddaring has been achieved and then subjecting the produced cheese mass to cutting, salting and final pressing. The cheese mass may be subjected to pressing during the cutting. The final pressing may be performed in moulds or the draining vat. In the cheddaring step the temperature may be 30-40‹C.
Patent GB-822984-A (GB)
Title: Method and apparatus for bending glass sheets
IPC: C03B23/025
Filed: 1957-06-12
Abstract: 822,984. Bending glass sheets. PITTSBURGH PLATE GLASS CO. June 12, 1957 [June 15, 1956; June 28, 1956], No. 18517/57. Class 56. In the bending of glass sheets to non-uniform curvatures including an area left substantially flat (particularly as in the central portion of a wrap-around windshield) the amount of heat on the part to be left flat is reduced by providing a heat-absorber member beneath such part and movable round thereto so that at times in the bending cycle it may be closely adjacent the part and at other times remote therefrom. Two forms are described. In Fig 5, the absorber comprises plates 61 or screens or expanded metal laminae mounted by parallel linkage 62 on the mould frame F and moved vertically by the engagement of followers 70 on cranked levers 66 pivoted at 67 on the mould frame with cam tracks 58, 59, 58<SP>1</SP> in the preheat, bending, and annealing zones 55, 56, 57 of the lehr 53, the abosrber being nearest to the undersurface of the central part G of the sheet when it is in the bending zone. In Fig. 11 chilling bars 110 are carried by links 112 pivoted within the mould frame 101 and are raised and lowered by the engagement of a follower 115 on the bar support with a cam 114 on a shaft 117 carried by and projecting beyond the mould carrier and having a pair of radial arms at one end for engagement with fixed stops projecting from the side of the lehr into the path of travel of the arms.
Patent GB-558542-A (GB)
Title: Improvements in or relating to fluid-pressure-regulating-reducing-valves
IPC: G05D16/06
Filed: 1942-12-31
Abstract: 558,542. Pressure regulating valves. WEIR, Ltd., G. & J., and HILLIER, H. Dec. 31, 1942, No. 18567. [Class 135] A pressure. regulating valve loaded by a pressure chamber has a spring 16 interposed between the valve member 9 and the pressure sensitive actuating member 3. The valve member 9 has a cylindrical enlargement 10 slidable in a ported skirt 8 formed on a seat member 7. The valve spindle 18 slides in a guide bush 17 screwed to a yoke 14 and has a screwed part adapted to receive a nut 19 for adjusting the tension of the spring 16. The actuating diaphragm 3 is clamped peripherally between the main casing 4 and a stop plate 23 supported by a dome 1. Centrally the diaphragm is clamped between a pair of plates 12, 13 secured to the yoke 14 by a coned part 14' and a nut 14a. Upward movement of the diaphragm is limited by the plate 13 contacting the stop plate 23 while downward movement is limited by the plate 12 engaging a shoulder 24 on the casing. The nut 19 slidably engages a guide socket formed in a cap 22 screwed in the lower end of the casing.
Patent GB-714702-A (GB)
Title: Improvements in braking mechanism for web supply reels and to web-tensioning means associated therewith
IPC: B65B41/12
Filed: 1951-08-07
Abstract: 714,702. Feeding webs. AYERS, F. L., and GRIMSHAW, J. P. July 31, 1952 [Aug. 7, 1951], No. 18571/51. Class 100 (1) A web 1, unwound from a reel 2 by a feeding device, such as a pair of rollers 3, is maintained under tension by a roller 7 supported by a loop 6 of the web. When the feeding device stops, the roller 7, guided in vertical channels 8, drops under gravity to lower a pair of spring-loaded plungers 9 slidable in the channels 8, such that brake members 12 mounted on the plungers 9 engage the periphery of discs 2a on the reel 2, thereby preventing over-running of the reel 2. Specification 692,796 is referred to.
Patent GB-1343945-A (GB)
Title: Centrifuge bowls
IPC: B04B7/08
Filed: 1971-06-02
Abstract: 1343945 Centrifuge bowls COMMISSARIAT A L'ENERGIE ATOMIQUE 2 June 1971 [3 June 1970] 18582/71 Heading B2P A high-speed centrifuge bowl comprises a cylinder 7 and two ends fitted inside the cylinder, each end 6 having the form of a disc 6a connected by a fillet 6b to a cylindrical rim 6c which bears against the inner surface of the cylinder, the cylinder having on the outside hooping 8 wound round a portion 7a thereof level with the cylindrical rim. The hooping consists of wire or fibre 11 made of a material having a ratio of modulus elasticity to density which is greater than that of the materials used to make the ends and the cylinder, e.g. of a composite material formed from a fibre of carbon, boron or silicon carbide embedded in a polymerisable synthetic resin. Each cylindrical rim 6c has an annular groove 9 in which is disposed a glue seal 10 made of polymerisable substance.
Patent GB-1430528-A (GB)
Title: Remote control hood latch release mechanism
IPC: E05B65/19
Filed: 1974-04-29
Abstract: 1430528 Releasable fastenings FORD MOTOR CO Ltd 29 April 1974 [9 May 1973] 18589/74 Heading E2A A remote control hood latch release mechanism comprises a Bowden cable 25 connected between the latch and a control rod 32 secured to a handle 39, the control rod 32 having rack teeth 59 which mesh with teeth 58 provided on a pinion segment 55 coupled via a further Bowden cable 45 to a locking mechanism which is operable to prevent movement of the cable 45 and thereby of the rod 32. When the cable 45 is unlocked, movement of handle 39 in a leftward direction as shown causes corresponding movement of rod 32 and cable 25 to release the latch. The cable 45 is locked by means of a slug 48 coupled thereto and provided in a housing 44 through a slot 61 of which protrudes a tab 62 coupled to a vehicle ignition switch activation rod 28, Fig. 1 (not shown), with the vehicle ignition in a locked condition, the tab 62 abuts slug 48 to prevent movement of cable 45 and to resist rotation of pinion segment 55 which locks rod 32. Upon release of the ignition, lock tab 62 is moved out of the path of slug 48 to allow movement of cable 45, pinion segment 55 and rod 32. Upon release of handle 39 rod 32 is restored to its rest position by a compression spring 63 acting between a washer 65 in housing 44 and a second slug 66 on the cable 55.
Patent GB-568868-A (GB)
Title: Improvements connected with variable choke coils
IPC: H01F29/10
Filed: 1943-11-11
Abstract: 568,868. Inductances. MOSSAY, P. A. H. Nov. 11, 1943, No. 18772. [Class 38 (ii)] A regulating choke, particularly for welding circuits, comprises a stationary laminated yoke 1 with polepieces 2 carrying the windings 3 and a movable laminated bridging member 4 pivotally mounted between the polepieces, the faces of the latter and of the bridging member being so curved (e.g. spirally) that the air gap 7 varies in direct proportion to the angular adjustment of the bridging member.
Patent GB-258050-A (GB)
Title: Improvements in and relating to carburetters for internal combustion engines
IPC: F02M19/12
Filed: 1926-02-25
Abstract: 258,050. Owers, J. C. Feb. 25, 1926. Spray carburettors.-The fuel valve 13 is adjustably attached to a suction-actuated air valve 4 loaded by a spring 14, the load on the spring being automatically varied according to the difference between the vacuum in the mixing chamber and in the induction pipe between the throttle valve and the engine through the action of a piston 24, the lower side of which bears upon the spring 14, and the upper side of which is acted upon by a spring 15 and is subject to the vacuum in the induction pipe through a pipe 25. The pipe 25 is provided with a ball valve 26 to prevent the return of air above the piston 24 between the induction strokes of the engine. The fuel needle is attached to a dash-pot piston 12 working in a chamber 11 to which fuel is supplied through a conduit 20, the outlet of fuel from the chamber being controlled by a valve 18 on the fuel needle. The air valve 4 coacts with an adjustable conical sleeve 3, and is provided with air-inlet passages 27 and with a fuel deflector 28. An exhaust jacket 8 surrounds the air inlet. The mixing-chamber is provided with gauze 30 to atomize the charge.
Patent GB-737784-A (GB)
Title: Improvements in or relating to television receivers
Inventor: ROGERS DOUGLAS CECIL
IPC: H04N3/32
Filed: 1952-07-25
Abstract: 737,784. Television. STANDARD TELEPHONES & CABLES, Ltd. July 17, 1953 [July 25, 1952], No. 18864/52. Drawings to Specifications. Class 40 (3). In a television receiver in which the electron beam of the picture reproducing cathode-ray tube has, in addition to the normal horizontal and vertical deflection, an additional highfrequency vertical deflection imposed thereon (i.e. " spot-wobble ") the latter deflection is varied in amplitude in accordance with the picture signals so that the amplitude is a maximum when the latter signals have a maximum value and decreases to zero with decrease of the picture signals to " black " level. By this means the subjective loss of picture definition is reduced since the line structure is only visible in intermediate shades of grey. Specification 535,905 is referred to.
Patent GB-440215-A (GB)
Title: An improved treatment for producing a modified surface on ferrous articles
IPC: C23C22/22
Filed: 1934-06-27
Abstract: A bath for producing a phosphate coating on ferrous articles is formed by dissolving in water one or more of the acid phosphates of calcium, strontium, and barium.  One or more of the sulphates of zinc, manganese, cadmium, and iron may be added, and the amount added may be such that the bath contains a mixture of acid phosphates of calcium &c. and acid phosphates of zinc &c. Alternatively, sufficient sulphate may be added to effect a complete precipitation of the calcium &c., the bath consisting of the acid phosphate of zinc &c. with or without an excess of sulphate.  An oxidizing agent such as a nitrate, nitrite, bromate, chlorate, or iodate may be added to oxidize the hydrogen evolved. Baths formed and replenished by dissolving varying amounts of calcium dihydrogen phosphate, zinc sulphate, and sodium nitrate are described.  The treated articles may subsequently be painted, oiled, or lacquered.