baber/WOPTO huggingface dataset:
Patent GB-1510755-A (GB)
Title: Automatically controlled antenna tuning arrangements
IPC: H03H7/40
Filed: 1976-07-02
Abstract: 1510755 Automatic impedance matching HATFIELD INSTRUMENTS Ltd 2 July 1976 27736/76 Heading G3R [Also in Division H4] A control system which produces automatically a required closeness of impedance matching between a transmitter 1 and an antenna 2 includes a matching network 3, 4 a VSWR detector 7 giving an output signal representing the closeness of matching afforded by the network, respective electric motors 5, 6, for adjusting an inductor 3 and a capacitor 4 of the network, and units 8-17 responsive to a detector signal representative of less than a predetermined degree of matching to energize the motor 5 associated with the inductor to maximize the matching obtainable by adjustment of the inductor and thereafter to energize the motor 6 associated with the capacitor to maximize the matching. Circuit details of units 8-17 are given Figs. 2 and 3, (not shown).
Patent GB-228609-A (GB)
Title: Method and apparatus for surfacing plate glass
IPC: B24B7/24
Filed: 1923-11-05
Abstract: 228,609. Golby, F. W., (Libby-Owens Sheet Glass Co.). Nov. 5, 1923. Guards, controlling. - In a machine for surfacing plate glass means are provided for enclosing the glass and tools during operation. A table 4 is supported on a frame which has an upward and cylindrical extension 12 forming a shield, an opening 14 being provided therein. The opening is closed during operation of the machine by a vertically movable shield 15, which is lowered when the grinding-tool 32 is raised from the glass. The grinding tool is lifted automatically from the glass at the conclusion of the operation by a gear sector 67 which engages a rack formed on a sleeve 36 carrying the grinding-shaft 35. The sector is rocked by a pitman 169 moved by a crank 70 on a shaft 71, which is rotated, through gearing 78, 74, by a motor 77, or bv hand by a wheel 76. The shield 15 is raised and lowered as the grinding-head is lowered and raised by movement of pulleys 88 by means of a lever 84 rocked by the pitman 169, supporting cables 80, 82 passing round the pulleys and secured at one end to the shield and at the other end to the frame.
Patent GB-685213-A (GB)
Title: Improvements in or relating to hand trucks or trolleys
IPC: B62B1/26
Filed: 1949-10-29
Abstract: 685,213. Hand trucks. BUTLER, R. A. Oct. 12, 1950 [Oct. 29, 1949; Jan. 12, 1950], Nos. 27781/49 and 806/50. Class 108 (i). [Also in Group XXX] A hand truck for lifting, wheeling, and placing a load such as a milk churn upon a vehicle, comprises two braced together triangular side frames each having members 8, 9 and 11, Fig. 1, the members 8, 9 being extended to provide handles 1 and foot supports 10 respectively. At the top the frames are also connected by a rod 14 forming a pivotal support for interengaged levers 15 and 20, the levers 15 having a yoke 16 at one end, Fig. 3, and curved handles 17 at the other. A bar 24 fixed at one end to one lever 20, carries at its other end a cam plate 25 which engages a pin 27 on the other lever 20. By moving the bar 24 towards or away from the rod 14 against a spring 28, pins 23 at the ends of lever extensions 22 can be brought into or out of engagement with the handles of a churn. In operation the pins 23 are engaged with the churn by tipping the truck forwardly and operating the bar 24. The churn may then be lifted and brought back against braces 7 by returning the truck to the wheeling position, Fig. 5. To raise the churn further for loading, Fig. 6, the legs 10 are rested upon the ground and the levers 15 are pulled away from a latch 29 and brought back over the top of the frame to engage and raise the levers 20, thus lifting the churn upwardly and outwardly. The levers 15 are then pulled down until the handles 17 thereon may be gripped with the handles 3. The truck may then be wheeled to the vehicle and the churn deposited by operating the bar 24. The levers 15 are then returned to the front of the frame. In a modification a scoop is attached to the ends of the levers 20 so that sacks may be loaded, links of equal length to the levers 20 being pivoted to the scoop and to the members 11 to prevent the scoop from tilting. The apparatus may be modified to lift two or more loads at once. In the first Provisional Specification a pair of straight and parallel cross-braced levers are pivoted to the top of the frames and are adapted to engage churns by forked ends, the levers being held by sprung stops on the frame when the load is lifted to the wheeling position. In the second Provisional Specification the levers are cranked and the forked ends provided with axially slidable sprung bolts for engagement with the churn handles. This arrangement is such that the frame can readily be lifted over the churn by raising the wheeling handles and drawing the truck rearwardly until the wheel axle is near the churn. The levers are then connected to the churn which is then raised to a wheeling supported position on the axle.
Patent GB-429996-A (GB)
Title: Improvements in and relating to photographic copying apparatus
IPC: G03B27/32
Filed: 1933-10-09
Abstract: 429,996. Photographic projection-printing apparatus. SALCHOW, W., 85, Dammweg, Treptow, near Berlin. Oct. 9, 1933, No. 27811. [Class 98 (i)] The apparatus is provided with a movable copyholder having a transparent top plate and supported on stepped means such that in all positions of the copyholder the optical axis of the apparatus lies in a plane passing through the centre of the copy, parallel to one side and perpendicular to the surface. The copyholder is provided on its body portion with marks for positioning the copy and the camera of the apparatus has a movable holder having correspond. ing marks to indicate the position of the holder for focusing. In the form shown, the copy holder 41, Fig. 7, is in the form of a hood having a transparent plate 23 in the top and carried by two sets of parallel rods 47 in the form of inclined ladders so that the vertical movements of the holder are accompanied by lateral movements. Stops, not shown, are provided on the rods 47 to produce lateral movements at right angles to the movements produced by the inclination of the ladders. The sensitive material is contained in a casing mounted on the side of the apparatus and is exposed by means of a lens 50 and inclined mirror 51 movable as a unit for focusing. To co-ordinate the focusing with the position of the copyholder the rods 47 are each provided with a mark coloured in a distinctive colour, and the lens and mirror assembly carries a hook 55, Fig. 13, engaging one of a set of collars 63 having corresponding coloured marks, the lens and mirror assembly being moved until the hook engages the collar having the same colour as the rod on which the copyholder rests. To allow for the use of different lenses, the collars are mounted on a rod 59 adjustable by a threaded nut 62. In a modified form, the rods 47 are replaced by a slot 24, Fig. 4, having horizontal and vertical reaches. The copyholder may be built up from two pieces of sheet metal and provided with a hand rail for manipulation. Marks corresponding to the coloured marks on the apparatus are provided on the sides of the hood to facilitate the positioning of the copy.
Patent GB-1299619-A (GB)
Title: Basketball toy
Inventor: MANDAK BELA
IPC: A63F7/20
Filed: 1970-06-09
Abstract: 1299619 Basket ball game FITBA PLASTICS Ltd 3 June 1971 [9 June 1970] 27870/70 Heading A6H Basket ball game apparatus comprises a baseboard provided with a number of depressions 3 and a toy figure 2 mounted within each depression by means of a base spring fixed in a socket 10, each figure being provided with outstretched arms so that a toy ball may seat securely between the figure's hands and may be released when a sharp motion is applied to the figure. The head 13 is movable against a spring 17 so that a projection 15 forces the upper parts of the body apart and with it the arms so that by bending the figure over against the base spring a ball in the depression may be picked up and held by further depressing the head so that the projection 15 passes into the body chamber 9 causing the arms to close and grip the ball. When the figure is released, it moves sharply to the vertical causing the ball to be released. The concave depressions ensure that the ball lands near one of the figures.
Patent GB-188643-A (GB)
Title: Improvements in magneto-electric machines
IPC: H02K21/34
Filed: 1922-10-14
Abstract: 188,643. Bosch Akt.-Ges., R. Nov. 11, 1921, [Convention date]. Magneto - electric machines; magnets. - In a bell-shaped magnet for a magneto, the connection between the magnet bars and yoke piece is made by means of projections on the yoke flanged over into recesses formed in the magnets. As shown in Fig. 1, the magnet bars a, b of curved cross-section are recessed at c, d and a soft iron yoke e is pressed into the, recess c, the magnets being also spaced at the other end by a non-magnetic yoke g which is pressed into the recess d. Peripheral movement of the bars. is prevented by a portion of the yokes being pressed into the space between the longitudinal surfaces of the bars. The yoke e may serve as a bearing for the armature shaft and the remaining parts of the machine may be attached to the soft yokes. Pole-pieces k, Fig. 3, may be attached to a non- magnetic ring i which is secured between the member g and the ends of the magnets. The Specification, as open for inspection under Sect. 91 (3) (a) describes also a connection between the yoke pieces and bars in which any suitable projecting member on the yoke engages a suitable recess in the bars. This subject-matter does not appear in the Specification as accepted.
Patent GB-673362-A (GB)
Title: Improvements in or relating to structural toy kits
IPC: F16B7/04
Filed: 1948-10-27
Abstract: 673,362. Toys. KOBLER, W. Oct. 27, 1948, No. 27931/48. Class 132 (iii). A structural toy kit comprises rods 1 of various lengths with grooves 2, or notches, or transverse bores at their ends, and clamping means 4 to engage the grooves, &c. such that the axes of the interconnected rods lie in a common plane. The clamps may comprise two screw connected plates with bent-over edges 5 with recesses 6 to engage the rod grooves. An additional clamp may be held by the head of the screw 8, and an internally threaded rod screwed to the end 7. The clamp may be of circular or other shape, and may embrace a rod intermediate its ends. An additional unit, Fig. 16, comprises a bracket 34 supporting a block 25 having tapped holes for the reception of screws with annular slots in their heads, within which clamps are held. Alternatively, Fig. 9, the clamp comprises a slotted sleeve 18 with indents 20 engaging the rod grooves.
Patent GB-230789-A (GB)
Title: Improvements in or relating to guides for sliding window panes particularly for vehicles
IPC: B60J10/74
Filed: 1924-11-21
Abstract: 230,789. Matthys FrÞres et Osy. March 31, 1924, [Convention date]. Window< >frames; vehicle windows. - A guide for sliding windows, particularly for motor vehicles, consists of a strip d of material extending between, and enclosing, two rubber tubes c which are adapted to engage the edges of the glass h. The strip d may be of velvet, cloth, &c., and is pressed against the back of the groove a by a flat rubber strip f secured to the upright b by screws g.
Patent GB-772676-A (GB)
Title: Improved polymerization process
IPC: C08F16/12
Filed: 1954-09-28
Abstract: A method of further improving the viscosity index of a lubricating oil composition in which is incorporated a copolymer of a vinyl alkoxy ether having the general formula R(OR1)nOCH =CH2, where R is an alkyl group containing from 1 to 20 carbon atoms, R1 is a methylene, ethylene, propylene or butylene radical, and n is an integer from 1 to 3, with at least one vinyl alkyl ether having the general formula R11OCH =CH2, where R11 is an alkyl group containing from 1 to 20 carbon atoms, R, R1 and R11 being chosen so that the average of R + nR1 and R11 in the resulting copolymer is at least 4 carbon atoms when n=1, at least 6 carbon atoms when n=3, comprises heating the composition at a temperature of from 150 DEG  to 250 DEG F., in the presence of a minor proportion of phenyl alphanaphthylamine, whereby the polymeric vinyl ether is further polymerized.  The vinyl alkoxy ether may be 2-methoxy ethyl vinyl ether, 2-ethoxy ethyl vinyl ether, 3-ethoxy propyl-1 vinyl ether, 2-butoxy ethyl vinyl ether, 2-butoxy 2-methyl ethyl vinyl ether, 2-isopropoxy 2-methyl ethyl vinyl ether, 2-propoxy 3-butyl vinyl ether, 2-octyloxy, ethoxy-ethoxy ethyl vinyl ether, 2-(2-ethyl-hexyloxy) ethoxy ethyl vinyl ether, 2-(2-ethoxy-ethoxy) ethyl vinyl ether or 2-(2-butoxy-ethoxy) ethyl vinyl ether.  The alkyl vinyl ether may be vinyl isobutyl, 2-ethyl hexyl, methyl or octadecyl ether. Copolymerization is preferably effected in bulk in the presence of a Friedel-Crafts or acid catalyst at a low temperature, preferably -70 DEG C. to -80 DEG C.ALSO:A lubricating oil composition in which is incorporated a polymeric vinyl ether viscosity index improver which is the product of the copolymerization of a vinyl alkoxy ether having the general formula R(OR1)n OCH=CH2 where R is an alkyl group containing from 1 to 20 carbon atoms, R1 is a methylene, ethylene, propylene or butylene radical, and n is an integer from 1 to 3, with at least one vinyl alkyl ether having the general formula R11OCH=CH2 where R11 is an alkyl group containing from 1 to 20 carbon atoms, R, R1 and R11 being chosen so that the average of R+nR1 and R11 in the resulting copolymer is at least 4 carbon atoms when n=1, at least 6 carbon atoms when n=2, and at least 8 carbon atoms when n=3, is treated to improve further the viscosity index of the composition, the treatment comprising heating the lubricating oil composition at a temperature of from 150 to 250 DEG F., in the presence of a minor proportion of phenyl alpha-naphthylamine, whereby the polymeric vinyl ether is caused to undergo further polymerization.  The treatment of mineral lubricating oil compositions is described, and the effect of omitting the phenyl alpha-naphthylamine or replacing it by 2, 4-di-tert. octyl phenol, 2, 6-di-tert. butyl-p-cresol or di-tert. amyl hydroquinone is indicated.
Patent GB-1351187-A (GB)
Title: Separation by permeation of components of mixtures comprising water
IPC: C07C29/76
Filed: 1971-06-15
Abstract: 1351187 Separation of water from an aqueous solution MONSANTO CO 15 June 1971 [16 June 1970] 27990/71 Heading B1X Water is separated from a liquid or gaseous feed mixture by contact with one side of a water permeable, nitrogen containing organic polymer membrane containing at least one anionic group and optional cationic groups. The other side of the membrane is in contact with a vapour phase, perferably flowing, which has a lower chemical potential than the feed mixture. The membranes may be discs sheets hollow tubes or fibres and may be multilayered and pretreated with heat or hydrochloric acid. The membranes may be prepared by copolymerising acrylonitrile and sodium styrene, sulphonate in the presence of a sulphuric acidferrous ammonium sulphate hexahydrate-water catalyst. Potassium persulphate and sodium meta-bisulphite are also added and the pH adjusted with sodium carbonate.
Patent GB-848001-A (GB)
Title: Improvements in or relating to electrical signalling systems
Inventor: MUNDY RICHARD CHARLES NORRIS
IPC: H04Q1/446
Filed: 1955-10-01
Abstract: 848,001. Voice immunity circuits. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Sept. 24, 1956 [Oct. 1, 1955], No. 27991/55. Class 40 (4). [Also in Group XL (c)] A receiver has an amplifier TX3 tuned to a narrow band and followed by a discriminator TX4 responsive to signals above a given amplitude to define a narrower signal band and provide a first output, the receiver also having an amplifier TX8 tuned to a broad band not including the signal band and giving a second output, the first output being applied to a transistor TX6 to cause a transistor TX7 to operate provided the second output which is applied to a transistor TX10 is not present to inhibit TX7. Alternating signals incoming on a line L switch transistor TX1 during negative half-cycles to generate an amplitude-limited square-wave output from normally saturated transistor TX2. This output is applied over separate resistor chains to transistors TX3 and TX8. By virtue of resistor-capacitor bandpass negative feedback filter circuits TX3, working in class A, is sharply tuned about 2280 c.p.s., while TX8 works in class B and is tuned to pass a band of 400 to 1725 c.p.s. The output of TX3 is sinusoidal and for amplitudes greater than the bias on the base of transistor TX4 produces drive for a following amplifier TX5 to cut off a normally conducting transistor TX6. The output of TX8 cuts off normally conducting TX9 to allow TX10 to conduct. If a signal of 2280 c.p.s. is received the cutting off of TX6 allows TX7 to operate relay X. If the signal of 2280 c.p.s. is accompanied by a signal in the band 400 to 1725 c.p.s., TX10 conducts and by earthing the base of TX7 prevents operation of relay X.
Patent GB-304634-A (GB)
Title: Improvements in or relating to means for securing manhole covers and the like
IPC: F16J13/04
Filed: 1927-10-21
Abstract: 304,634. Cleaver, J. Oct. 21, 1927. Manhole covers.-Relates to a manhole cover 2 secured to the frame 3 by a cross-bar 9 arranged beneath the cover and engaging with projections 12 on the frame when a screw member, such as 4, is rotated. According to the invention, guide members, such as 10, depend from the cover and prevent rotation of the cross-bar relatively to the cover in either direction. One or more of such fastening devices may be provided on the cover. The invention is shown applied to a circular cover, and the ends of the cross-bar are passed through gaps 11 in the ledge 12 and brought under the ledge by rotation of the cover. The guide members 10 are in the form of bolts passing through holes in the cross-bar.
Patent GB-417080-A (GB)
Title: Motor-vehicle springing
IPC: B60G21/055
Filed: 1933-10-11
Abstract: 417,080. Vehicle spring-suspensions. HUMBER, Ltd., WISHART, N. M., and HEYNES, W. M., Stoke, Coventry. Oct. 11, 1933, No. 28040. [Class 108 (ii).] A vehicle spring-suspension comprises longitudinal laminated springs of a stiffness increasing with the load and means comprising a transverse torsional spring to serve as an anti-rolling device. The springs 12 have their lower leaves 13 spaced from the main leaves and so arranged that as the load increases the leaves come in contact with increasing pressure. Levers 21 are mounted by means of teeth on the ends of a torsion tube 19 mounted transversely and so arranged as to be freely rotatable under equal movement of the arms 21 in the same direction, but to be put under torsion and so resist rolling of the vehicle when one lever 21 moves relatively to the other. The levers 21 are linked to the axles 15 by links 22.
Patent GB-324690-A (GB)
Title: Improvements in and relating to holders for globes, reflectors and the like
IPC: F21V17/16
Filed: 1928-10-01
Abstract: 324,690. British Thomson-Houston Co., Ltd., and Wheat, H. C. Oct. 1, 1928. Globe and reflector holders; securing globes and reflectors to holders.-The reflector, bowl, or globe 1 of a lighting fixture is supported in a canopy 3 by rigid V-shaped fingers 5 acted on by springs 6 so that one limb is pressed into contact with the canopy while the other limb passes through a slot 4 in the canopy and supports the reflector &c. by its outwardly-extending flange 2. To release the reflector the outer limbs of the fingers are pulled outwardly and downwardly until the inner limbs are free from the flange 2. The outer limbs may be ornamented. To prevent the flange of the reflector from becoming chipped it is surrounded by a metal beading 7 in the form of a split circular band the ends of which are secured together by a pin on one end engaging an aperture in the other. The beading may extend over the edge of the reflector, and chains 9 may be attached to the beading to support the reflector &c. in a lowered position. Specification 229,221 is referred to.
Patent GB-730531-A (GB)
Title: Improved flexes for use in arc welding
IPC: B23K35/362
Filed: 1953-10-13
Abstract: A fused and granulated flux for arc-welding comprises a small amount of a tin compound equivalent to not less than 0.3 per cent of metallic tin.  The flux mainly consists of silicates of manganese, calcium, magnesium, iron, titanium and/or aluminium. In an example, manganese tetroxide, silica, calcium fluoride and tin oxide, mixed with charcoal, are fused, crushed and sieved.
Patent GB-1533180-A (GB)
Title: Sheet-form matting and a process for its production
IPC: D04H3/007
Filed: 1976-07-07
Abstract: 1533180 Non-woven fabric AKZO NV 7 July 1976 [9 July 1975] 28228/76 Headings DIN and DIR A non woven fabric whose filaments are preferentially aligned in one direction having a strength transverse to the preferred direction divided by weight per unit area of at least 2 Nm/g (the highest disclosed being 12.35 Nm/g) in binder free form comprises 0.2 to 1.5 mm diameter melt spun synthetic polymer continuous filaments which are welded together at their crossing points. Transverse strengths of 600 to 6170 N/m and densities of 20,200 to 75,000 g/m<SP>3</SP> are disclosed. The polymer may be polyethylene terephthalate, polyethylene, polypropylene, polycaprolactam, polyvinyl chloride or polycarbonate. It may be partially crystalline and may contain 0.2 to 1% by wt. of carbon black as U.V. stabiliser. The melt is extruded through a plurality of orifices and collected on a moving surface having a plurality of raised portions (humps), the top of the humps passing at a distance of 3 to 20 cm below the orifices so that the filaments are deposited on and between the humps. The fabric is allowed to cool or cooled by blowing air or using a cooling drum and removed from the collector surface. A second group of orifices may deposit additional filaments on the cooled fabric before it is removed from the collector. The collector may be a roller, drum or conveyor belt and is preferably caused to oscillate transversely of its direction of steady movement through an amplitude of 3 to 10 mm and with a frequency of 80 to 300 per minute. The humps are preferably uniformly distributed at a density of 16 to 150 per sq decimetre have a height of 5 to 70 mm and have the shape of truncated cones or pyramids or of nails. They may be formed by milling V shaped grooves or may be nailed or screwed onto a smooth surface. Preferably the mat surface has recesses produced corresponding to the humps.
Patent GB-534871-A (GB)
Title: Improvements in or relating to the producing or refining of aluminium
IPC: C22B21/06
Filed: 1939-10-19
Abstract: 534,871. Aluminium. ALUMINUM CO. OF AMERICA. Oct. 19, 1939, Nos. 28266 and 28267. Convention dates, June 22 and Sept. 18. [Class 82 (i)] A process for obtaining refined aluminium consists in heating a mixture of aluminium or aluminium-bearing material such as aluminium carbide and a halide in an inert atmosphere such as hydrogen, or under reduced pressure, to such a temperature as to vaporize aluminium and the halide, and separating the aluminium from the condensate. The halides may be aluminium fluoride, magnesium fluoride, alkaline earth fluorides, or alkali double fluorides, preferably cryolite. The mixture to be treated may be briquetted, with or without a binder.