baber/WOPTO huggingface dataset:
Patent GB-979453-A (GB)
Title: Control apparatus for vehicles
Inventor: KEMPSON BERTRAM CARL
IPC: B62D11/14
Filed: 1960-08-19
Abstract: 979,453. Hydrostatic transmissions. DOWTY HYDRAULIC UNITS Ltd. Aug. 9, 1961 [Aug. 19, 1960]; No. 28812/60. Headings F2C and F2D. [Also in Division G3] Two separate hydrostatic transmissions each comprise a variable displacement pump driving a fixed displacement motor, a common control means being provided for simultaneously varying the displacement of the pumps and means also being provided for selectively varying the displacement of the individual pumps. Tractor engine 1 drives, through gears 2, 3 and 4, two variable displacement hydraulic pumps 5 and 6 which respectively drive hydraulic motors 7 and 12 which drive, through gear trains 8 and 13, sprockets 9 and 14 in driving engagement with endless tracks 11 and 15 respectively. The displacements of pumps 5 and 6 are adjustable by servomotors 16 and 17 (see Division G3), which include projecting control members 18, 19 respectively. A manuallyoperated speed control lever 25 is connected with members 18, 19 through a link 24, yoke 23 and springs 21, 22. Lever 25 also controls a rotary valve 26. Member 28 of the valve has two recesses 29, 31 which co-operate respectively with ports 32, 33, 34 and 36, 37, 38 extending into the bore 35 of the valve. Ports 32, 34, 36, 38 are fed with liquid from an auxiliary pump 42 through restrictors 43 to 46 respectively and are also connected, through pipes 47, 48, 49 and 51, to servomotors 17 and 16 for overriding control thereof. Ports 33, 37 are respectively connected to adjustable leak valves 39, 41. Thus if lever 25 is rotated counterclockwise port 33 is connected to port 34, and port 36 to port 37. Operation of leak valve 39 permits liquid flow from pump 42 through restrictor 44 and reduces pressure in pipe 48 relatively to pipe 47. Thus valve 39 is arranged to apply an overriding control to servo 17 in the direction to reduce the displacement of pump 6. Similarly, operation of valve 41 is arranged to reduce the displacement of pump 5. Thus the tractor speed is adjusted by lever 25 and steering is effected by operation of valves 39, 41. Specification 949,672 is referred to.
Patent GB-941094-A (GB)
Title: A process for the after-treatment of polyurethane foam materials
IPC: C08J9/38
Filed: 1961-08-09
Abstract: 941,094. After-treatment of polyurethane foam materials. H. BAUER, and B. REISGIES. Aug. 9, 1961 [July 3, 1961], No. 28819/61. Headings C3C and C3R. Polyurethane foam material is treated with an organic solvent to reduce its weight by 10-50% of the original weight. Preferably the material in the form of a thin foil is drawn (immersion time-3 to 60 seconds) through a processing bath of solvent, freed from excess solvent and dried. Suitable solvents are halogenated hydrocarbons, e.g. carbon tetrachloride, trichlor ethylene, dichlorethylene, or methylene chloride, if desired in admixture with alcohols and/or phenols. Chlorbenzene is also useful. Additives with swelling power are ketones, esters, ethers and alcohols. Hydrophilic materials, e.g. wetting agents or hydrophobic materials e.g. oils or fats may be added to the solvent depending on the desired properties of the treated material. Silicone oils may also be added. The treatment with solvent may be combined with treatment with substances having a saponifying action. In examples (1), a polyurethane foam prepared from a branched polyester was treated for 30-40 seconds in a mixture of 90 parts CCl 4  and 10 parts CH 2 Cl 2 . Excess solvent was wrung out and the foam dried in air. The material was 16% lighter. (2) was similar the solvent bath also containing 1 part of wetting agent, e.g. polyethylene oxide. (3). The treating solution contained CCl 4  or perchlorethylene mixed with methylene chloride and a small quantity of castor, lanolin or silicone oil. (4). A polymethane foam was treated with a mixture of perchlorethylene, methyl alcohol, and potassium hydroxide solution. After squeezing out excess solvent, the foam was drawn through a lukewarm water bath, again squeezed and dried in hot air. It was 40% lighter, free of crystals and permeable to air. Specification 789,481 is referred to.
Patent GB-466101-A (GB)
Title: Improvements in or relating to apparatus for indicating the average speed of a vehicle
IPC: G01P11/00
Filed: 1935-10-19
Abstract: 466,101. Indicating-apparatus; speedometers. THIBOUST, L. Oct. 19, 1935, No. 28934. Convention date, Nov. 2, 1934. [Classes 106 (iii) and 106 (iv)] Apparatus for indicating the average speed of a vehicle comprises parts driven in accordance with elapsing time and with distance to vary the slope and position respectively of a line which, by its intersection with an evenlydivided scale, indicates the required average speed. The principle underlying the invention is shown in Fig. 2. A scale B is graduated in kilometres (0.. 500) and in hours (0.. 5). If a distance of 300 kilometres is travelled in 5 hours, and if a sliding member A is set adjacent 300, then the point of intersection of a scale on the member A with a line joining a point O to the 5 hours graduation of B gives the speed, viz. 60 kilometres per hour. Had the distance of 300 kilometres been traversed in 4 hours, the line 0-4 hours, at its indication with the scale on the member A, would have indicated the speed of 75 kilometres per hour. In a practical embodiment, Figs. 5 and 6, a shaft 8 is rotated according to distance travelled and has secured to it discs 5, 6 and a clockwork mechanism 9. The clockwork drives a plurality of internallytoothed rings 2 through gearing 10, 11, 12. Each ring is driven at a slightly faster rate than the ring to the left of it, the direction in all cases being opposite to that in which the whole arrangement is moved by the distancecontrolled device. Each ring has a mark 1 upon it, these marks initially forming a straight line. As the clock drives the discs, the line becomes helical as shown. The average speed is given by the point of intersection of the line with a fixed evenly-divided scale 25. The discs are reset by turning knurled wheels 16, 21. Contacts on the rings 5, 6 may be arranged to open a clutch between the clockwork mechanism and the rings at the expiration of a certain period. The Specification as open to inspection under Sect. 91 refers to (but does not fully describe) apparatus in which the slider A of Fig. 2 is replaced by the rotating radius of a circle inside which are drawn curves corresponding to the lines OB. This subjectmatter does not appear in the Specification as accepted.
Patent GB-190854-A (GB)
Title: Improvements in or relating to money boxes
IPC: A45C1/12
Filed: 1921-11-01
Abstract: 190,854. Purser, J. E. Nov. 1, 1921. Money, boxes specially designed for.-A money box comprises a revoluble disc e arranged between the top of the box and a fixed plate j within it, the disc and top of the box having interengaging grooves or ribs g, c respectively and one or more fingers m struck up from the plate lying in the groove in the disc and extending towards the outer face of the box. A coin placed through an aperture d in the top of the box is received in the aperture f, or one of a series of apertures, in the disc e and carried by the rotation of the disc to an aperture k in the plate j through which it drops into the box a. Should the box be turned upside down and the disc rotated in an attempt to extract a coin, the finger m slips under the coin and lifts it so that it cannot pass between the plate j and the top of the box. Rotation of the disc in an opposite direction is prevented by a spring-pressed roller n which is forced into the narrowing space between the box, which is oval in cross-section, and the circular disc e. The bottom of the box is flared at r for a portion of its periphery, and is closed bv a cover s having an inwardly bent flange t which engages the part r of the bottom and covers the bolt of the lock w which secures the cover of the box. The lock is disposed between lateral embossments v on the cover and is secured thereto by a ferrule x which is rolled over the cover. A hollow pillar q fixed to the plate j supports the cover and forms a receptacle for papers. A hole, smaller than the smallest coin it is intended to place in the box, may be provided for the insertion of Treasury notes. The plate is spaced from the top of the box by stamped tongues 4 and is secured in position by a recess 5 formed around the box. The disc e is revolved by a handle p disposed within the recess formed by the rib c, or its edge may be milled and actuated through a gap in the box.
Patent GB-1262845-A (GB)
Title: Improved flame resistant silicone elastomers containing carbon black and platinum
Inventor: HARDER J W
IPC: C08K3/04
Filed: 1970-06-16
Abstract: 1,262,845. Organopolysiloxane elastomer composition. DOW CORNING CORP. 16 June, 1970 [16 July, 1969], No. 29004/70. Heading C3T.  A flame resistant composition comprises: (I) 100 parts by wt. of a diorganopolysiloxane gum in which the organic groups are methyl, phenyl or vinyl (0-2% of the group being vinyl) and having 1À98-2À002 organic radicals per Si atom; (II) from 10-100 parts by wt. of a reinforcing silica filler; (III) 0À1-10 parts by wt. of an organic peroxide, e.g. benzoyl or dicumyl peroxide; (IV) 10-150 parts by wt. of platinum per million parts by wt. of I, the Pt being in the form of a platinum material in unsupported form, e.g. chloroplatinic acid; and (V) from 0À05-2 parts by wt. of carbon black which is substantially free of S.
Patent GB-461829-A (GB)
Title: Improvements in mechanical time-lag relays applicable for example for electric switch operation
IPC: H01H50/88
Filed: 1935-10-21
Abstract: 461,829. Retarding action of switches. DAVIES, D. R., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Oct. 21, 1935, No. 29054. [Class 38 (v)] A mechanical time-lag relay comprises an elongated vertical shoot formed by parallel side walls 3 apertured at 4 or otherwise constructed to provide a series of oppositelyinclined tracks 5 . . 8 whereof the lower end of one said track is merged substantially vertically into the upper end of the next lower succeeding track, and a body 1 of substantial inertia having cylindrical ends 2 which engage with the aforesaid tracks, whereby the body 1 is caused to rotate alternately in opposite directions during its passage from a raised position to a lower position. When the body 1 reaches the lower position, it may impact with a trigger, lever, or like mechanical device for effecting the desired operation, such as tripping a latched circuit-breaker. The Provisional Specification refers also to the use of arcuate track portions generally inclined in the same direction and, for economizing space, arranged as a continuous series of spiral loops.
Patent GB-1268379-A (GB)
Title: Improvements relating to brass wind instruments
Inventor: MCCRANN ARTHUR WILLIAM
IPC: G10D9/00
Filed: 1968-06-18
Abstract: 1,268,379. Pipe couplings. BOOSEY & HAWKES Ltd. 18 Sept., 1969 [18 June, 1968], No. 29061/68. Heading F2G. [Also in Division G5] A sliding joint between tubes 5 and 7 of a euphonium is made air tight by a latex bonded nylon fibre washer 10 held in a threaded ring 9. A turned over lip 12 prevents complete removal of the tube 7 from the tube 5.
Patent GB-833387-A (GB)
Title: Improvements in or relating to ropes
IPC: D07B1/02
Filed: 1957-09-16
Abstract: A rope, cord, cable or hawser is made of filaments of a polypropylene having a degree of crystallinity of from 60-98%. The rope may be produced by taking at least three strands produced by twisting together a plurality of filaments in one direction and twisting the strands together in the opposite direction.  A plurality of such ropes may be twisted together.
Patent GB-1320074-A (GB)
Title: Reciprocating piston internal combustion engine with spark ignition
IPC: F02B41/00
Filed: 1971-06-22
Abstract: 1320074 Charging I.C. engines; reducing exhaust pollutants K NOWAK 22 June 1971 [23 June 1970] 29074/71 Heading F1B Reciprocating piston I.C, engine having spark ignition has additional air injected into the cylinder at least once during the expansion stroke, followed by an additional spark to cause further combustion. The complete combustion of the fuel reduces pollutants in the exhaust gases. Combustion air is initially induced through an inlet valve 6 and while the piston is travelling away from the cylinder head on the expansion stroke, additional air is forced in through a nozzle 5. If the fuel is injected through a nozzle 3, then this nozzle may also be used to inject air subsequently. The air to be injected is pumped by a compressor 8 into a reservoir 9 from which a line 10 leads to each cylinder. Flow to the injector 5 is controlled by a valve 11 actuated by a cam 13 on an engine driven shaft 12. The cam may have one or more lobes according to the number of additional air injections required. A pair of contacts 15 operated by a stem projecting from the valve control the provision of the additional sparks. Alternatively the distributor may be modified to provide the requisite number of sparks during the expansion stroke.
Patent GB-1069932-A (GB)
Title: An electronically controlled printer
IPC: H04L13/18
Filed: 1963-07-30
Abstract: 1,069,932. Selective signalling. SCM CORPORATION. July 30, 1963 [Oct. 25, 1962], No. 29162/65. Divided out of 1,069,931. Heading G4H. A printer of the type in which a print hammer is successively stepped along a line to print successive characters is characterized that during the return of the hammer to the extreme left-hand position the stepping mechanism is disengaged so as to reduce wear. As described, a continuously rotating type drum having a complete fount for each character position along a line is repeatedly hit, at differential times in its cycle, by the print hammer in accordance with the characters to be printed, these times being determined by comparing the contents of a counter which represent the character that will appear under the print hammer in half a revolution's time, with the characters that are to be printed. The return of the print hammer to its left-hand position may be initiated either by a magnetic switch actuated when the hammer reaches the end of a line, or by an input character.
Patent GB-1270628-A (GB)
Title: A process and an apparatus for the manufacture of flat glass
IPC: C03B18/00
Filed: 1970-06-16
Abstract: 1,270,628. Float glass process. BOUSSOIS SOUCHON NEUVESEL. 16 June, 1970 [1 July, 1969], No. 29175/70. Heading C1M. In the float glass process, particularly for very thin glass of the order of 3 mm. or less, a predetermined thickness of the glass less than the equilbrium thickness is obtained by gripping the edges of the glass ribbon using knurled rollers 27 to resist the longitudinal tractive force produced by rollers 22, 23 located downstream of the outlet 20 of the float tank 5, re-heating the ribbon in a region 35 downstream of the rollers 27 while simultaneously cooling the edge regions of the ribbon using coolers 44, 45, 46, so that the viscosity of the central band is at least onefortieth of that of the edge regions while maintaining the viscosity of the edge regions sufficiently low so that they may still be drawn. Means, such as rollers 81 and obliquely mounted rollers 37 may be provided in the region 35 to prevent shrinkage of the ribbon width. The coolers 44, 45, 46 may each comprise a liquidcooled shoe 62 in contact with the glass ribbon which are constructed of a material such as carbon which does not adhere to the glass. Alternatively the coolers may comprise rollers having a smooth external surface (Fig. 8, not shown) or obliquely mounted nozzles for directing a jet of cooling inert gas (Fig. 12, not shown).
Patent GB-1568112-A (GB)
Title: Electronic buzzer
IPC: G10K9/22
Filed: 1977-07-12
Abstract: A miniature electronic buzzer for an electronic watch has two vibrating plates with a sealed space between them forming an air spring. One of the vibrating plates carries an amarature which is acted upon by an electromagnetic to vibrate said plate. Vibration is imparted to the other vibrating plate by the air spring. The two vibrating plates and coupling air spring constitute a vibrating system having two resonant frequencies in the audible range. The electromagnet is energized by current having a frequency in the neighborhood of these resonant frequencies. There may be a third vibrating plate coupled with the second vibrating plate by a second air spring. In this event the vibrating system has three resonant frequencies in the audible range.
Patent GB-342789-A (GB)
Title: An improved collapsible table
IPC: A47B5/04
Filed: 1929-09-26
Abstract: 342,789. Tables. ALEXANDER, A. M., Summerfield, Woodberry Down, London. Sept. 26, 1929, No. 29216. [Class 52 (iii).] In a collapsable and inclinable table of the kind upheld by one or more struts, as on the backs of seats in cars or aeroplanes, the strut 2 and the table 1 are preferably connected permanently, and the lower end of the strut is positively connected, e.g. by a chained pin connection 4, to a top bracket 3, so that the table 1 may be horizontal, to an intermediate, or one of a series of intermediate brackets, designed to hold the table in inclined positions, or to the lowest of them, when the table and strut are flat against the wall &c.
Patent GB-691106-A (GB)
Title: Improvements in and relating to elements of recuperators for heating air for furnaces
IPC: F28F3/02
Filed: 1949-11-15
Abstract: 691,106. Tubular heat-exchange elements. SCHOELLER - BLECKMANN STAHLWERKE AKT.-GES. Nov. 15, 1949 [Nov. 15, 1948], No. 29226/49. Class 64 (iii) The elements, through which air flows in a recuperator for heating air for furnaces, each comprise one or more welded pipes 4, e.g. connected one behind another, longitudinal fins 5 inside and transverse fins 6 outside (made from sheet steel which resists oxidation at elevated temperatures) being welded to each pipe. Pressed halves 2 are welded together to make the pipes, a reinforcing strut 7 being welded at the middle of each. Flanges 1 welded at the ends of the pipes have packing grooves 9 and holes 8 which permit sealing and screwing together of adjacent flanges.
Patent GB-207207-A (GB)
IPC: B64C35/00
Filed: 1923-11-20
Abstract: 207,207. Rohrbach, A. Nov. 20, 1922, [Convention date]. Steering by drag anchors.-The wings of a seaplane are provided with means for attaching thereto a drag-anchor, in order that if, when travelling on the water, the seaplane is caused to slew round on account of a strong side-wind, or owing to the failure of an engine, a counterbalancing side-pull may be produced by attaching a drag anchor to the wing which tends to lead. Rings or shackles may be provided on the wing-tips for the attachment of the drag-anchors. According to a modification, the drag anchors are housed' in pockets in the wing or normally lie flat upon the wing surface, their release being controlled from the cabin. The resistance of a drag anchor may be varied for varying speeds by altering its shape or its position in the water, or by moving it along the span of the wing.
Patent GB-317257-A (GB)
Title: Improvements in coke extractors for vertical retorts for the distillation of coal and the like
IPC: C10B33/02
Filed: 1928-10-11
Abstract: 317,257. West, E., and West's Gas Improvement Co., Ltd. Oct. 11, 1928. Discharging.-In apparatus for discharging vertical retorts of the kind comprising a platform a vertically movable within a coke-chamber b which is provided at the upper end with a door i to support the charge in the retorts while the coke-chamber is being emptied, the platform a is formed with nut-like projections e in which engage rotatable actuating-screws c, d. The latter are located in recesses in the side walls of the chamber b and are protected from the hot coke by weighted steel bands g attached to the platform and passing over pulleys f. The platform is inclined as shown and the door i, which is of arcuate form, is adapted to be swung clear of the descending coke during lowering of the platform through a slot k communicating with a housing m. The discharge-door o of the chamber b is carried by weighted chains p and is secured in its closed position by screws r which are attached to the door o and threaded through a beam s, the latter being adapted, when the door is in position for locking, to engage lugs t on the chamber b.
Patent GB-744760-A (GB)
Title: Improvements in or relating to cathode ray tube apparatus
Inventor: KRAUSE ANTHONY VICTOR DE VERE
IPC: H01J29/66
Filed: 1952-11-20
Abstract: 744,760. Cathode-ray tubes. CINEMATELEVISION, Ltd. Nov. 19, 1953 [Nov. 20, 1952], No. 29322/52. Drawings to Specification. Class 39 (1). In a cathode-ray tube astigmatism of the image produced by the electromagnetic focusing and deflecting coils is corrected by the rotation and longitudinal displacement of a non- magnetizable collar surrounding the neck of the tube, and carrying two magnetizable members of high permeability at diametrically opposite positions. The magnetizable members are magnetized by the field of the focusing coil. Preferably the collar is positioned on the gun side of the electromagnetic coils. It may be locked in position after adjustment. The cathode-ray tube may be a receiver tube, storage tube or transmitting tube such as an iconoscope, an image iconoscope or a monoscope.
Patent GB-533410-A (GB)
Title: An improved plate heat-exchange apparatus or cooler
IPC: F28D9/00
Filed: 1939-11-06
Abstract: 533,410. Plate heat exchangers. MICKELSEN, V., and REBBECK, F. E. Nov. 6, 1939, No. 29433, [Class 64 (iii)] In a cooler for oil or other liquid comprising a number of superposed spaced circular hollow plates 3, the spaces 8 in the plates open into inlet and outlet passages 11, 12 formed by superposed hollow lugs 11c, 12c integral with, the plates and the spaces 7 between the plates open into a central passage 10 and into a peripheral passage 9 formed by a third set of superposed integral lugs 9c. The jointing flanges 13 between the plates merge into the jointing faces of the lugs 9c and are spaced from the annular jointing faces of the lugs 11c, 12c to leave openings 16 through which any oil leaking from the spaces 7 may flow away without entering the joints between the lugs 11c and 12c. Both the spaces 7 between the plates and the spaces 8 in the plates may be provided with circular baffles. The surfaces forming the spaces 7 may be corrugated.
Patent GB-217841-A (GB)
Title: Improvements in smiths' hammers
IPC: B21J7/12
Filed: 1923-11-22
Abstract: 217,841. Muller, A. R., (Mauersberger & Fritzsche). Nov. 22, 1923. Addition to 203,136. Power hammers. - The hammer described in the parent Specification is provided with hand or power operated means for lifting and holding the tup clear of the anvil. The hammer lever e can be raised by a roller on a lever a<1> moved by a hand lever a<2> into the full-line position where it is retained against a stop a<4> by the weight of the tup h &c. When the machine is started and the tup lifted by its cam j a spring a<3> pulls the roller into the inoperative position. Instead of this device the cam may be formed with a circular bevelled collar j<1>, Fig. 3, which raises the lever e when the cam-adjusting treadle p is released. Reducing gearing c<1>, c<2> and a rebound spring b<1> may be provided.