baber/WOPTO huggingface dataset:
Patent GB-1337638-A (GB)
Title: Upwardly concave roof structure
IPC: E04B7/00
Filed: 1971-05-25
Abstract: 1337638 Concave roofs GRANGES ESSEM AB 25 May 1971 [1 June 1970] 16959/71 Heading E1W An upwardly concave roof structure comprises plastics sheets 13, 14, 15 having drainage holes at the lowest portion communicating with a drainage channel 20. The sheets are supported by Z-section members 23 which have flexible webs to accommodate relative movement due to expansion. An insulating layer 21 is provided. The joints 16, 17 between adjacent sheets are folded seams. If the roof is wider than shown further sheets overlap with the sheets shown in the manner of roofing tiles. The sheets may be smooth other than at the folded seams.
Patent GB-146137-A (GB)
Title: Improvements in or relating to toric spectacle lenses
IPC: G02C7/02
Filed: 1920-06-23
Abstract: 146,137. Optische Anstalt C. P. Goerz Akt.-Ges. March 17, 1919, [Convention date]. Drawings to Specification. Spectacle lenses.-Toric spectacle lenses having either one surface toric and one spherical or both surfaces toric are so designed that for pencils of rays of medium inclination which intersect each other at the centre of rotation of the eye, i.e. about 25 mm. behind the lens of the axis, and of which one pencil travels in the meridianal section and the other in the equatorial section, the circles of least confusion are situated exactly or very nearly on a sphere the centre of which is in the centre of rotation of the eye. Methods of calculation and an example are given in the Specification.
Patent GB-421286-A (GB)
Title: Improvements in or relating to boiler and like cleaners
IPC: F28G1/16
Filed: 1933-06-15
Abstract: 421,286. Boiler &c. cleaners. WEIS, H. T., 600, Jackson Avenue, Bronx, New York, U.S.A. June 15, 1933, No. 17142. Convention date, April 24. [Class 99 (ii)] In a boiler &c. cleaner comprising a rotatable nozzled cleaner element located within the boiler setting, the cleaner element is provided with fluid-cooled supporting means which preferably comprises a number of tubular U -bends 7 in a fluid, e.g., water, pipe having an inlet 47 and an outlet 50. The invention is shown applied to the cleaner element described in Specification 421,378 in which the cleaning fluid supply pipe 11 is cooled by water flowing between the pipe 11 and a surrounding jacket 10 from an inlet 35 to an outlet 33 through an axial tube 17. The cooling water for the supporting means and the blower element is preferably supplied under pressure from sources independent of the boiler circulation.
Patent GB-1337175-A (GB)
Title: Intermittent motion mechanism
IPC: H01H43/10
Filed: 1971-05-26
Abstract: 1337175 Escapements MALLORY TIMERS Ltd 26 May 1971 [17 June 1970] 17143/71 Heading F2X An intermittent drive mechanism includes a slider 44 arranged to be reciprocated by the action of a rotary input cam 30, and a rotary output member 34 subject to a spring bias tending to rotate it, the rotation of the output member 34 being alternately permitted and prevented by the reciprocation of the slider 44. A motor drives a reduction gear train, a gear 38 of which carries the cam 30. Slide 44 has a centrally disposed aperture 48, a pair of elongate apertures 50, 50<SP>1</SP> intended to receive guide posts (not shown), and a pair of oppositelylocated steps 53, 53<SP>1</SP> projecting inwardly of the aperture 48. The output member 34 includes a step 56 adapted to engage the steps 53, 53<SP>1</SP> of slider 44. When the mechanism is assembled, the cam 30 and output member 34 mate within aperture 48. The member 34 is urged to rotate by a coil spring 64 sandwiched between the cam 30 and the member 34, being attached at one end to a post 66 on gear 38 and at the other end to a post 68 on member 34. The member 34 is preferably formed as an integral piece comprising the step 56, a pinion 60, a ratchet wheel 70, and a bearing 72. When the mechanism is first assembled, coil spring 64 is twisted so that the two ends of the coil are adjacent each other. In operation, the gear 38 is driven clockwise and the cam 30 presses against the slopes 55 of the steps 53, 53<SP>1</SP> to cause slider 44 to move back and forth on surfaces 58, 58<SP>1</SP> within the mechanism housing. Assuming step 56 is in engagement with step 53, as slider 44 moves to the left, step 56 becomes disengaged from step 53 thus allowing the energy in coil spring 64 to be released to rotate the output member 34 clockwise through 180 degrees until step 56 engages step 53<SP>1</SP>. Then as slider 44 moves to the right, the process is repeated with step 56 leaving step 53<SP>1</SP> and member 34 rotating a further 180 degrees until it becomes engaged again with step 53. An intermittent rotary motion is thus imparted to the output member 34, the pinion 60 of which is coupled to the cams of a timing mechanism, and the ratchet wheel 70 of which co-operates with a pivotally mounted double pawl (not shown) to form a damping means.
Patent GB-269763-A (GB)
Title: Improved apparatus for cleaning sacks and the like
IPC: D06G1/00
Filed: 1926-07-09
Abstract: 269,763. Lutovitch, I. July 9, 1926. Addition to 251,153. Carpets &c., cleaning mechanically.-In ap paratus for cleaning sacks and the like comprising compartmented cubicles 1 with radial arms 2 and partly perforated bottoms 5 as in the parent Specification, a tank 6 is arranged containing water intc which the bottom dips A sludge drum 8 is fitted beneath the tank valves 9, 17 for emptying and filling the tank; means for heating the water, an extraction fan 18 for dust, and a press 14 for expelling water from the sacks, are provided. The radial arms have inclined battens 4 and discs 16 may rotate with the arms.
Patent GB-330399-A (GB)
Title: Improved non-slip surface dressing for roads and foot-paths
IPC: E01C7/35
Filed: 1929-06-05
Abstract: 330,399. Ross, J. A. June 5, 1929. Macadamized roads.-A mixture of hard rubber chippings and granite chippings or the like is distributed over the surfaces of roads and footpaths, and a finishing dressing of hot tar is then applied. The mixture may contain 10 per cent of rubber, which may be obtained from old tyres.
Patent GB-303852-A (GB)
Filed: 1928-06-14
Abstract: 303,852. Cablon, Ltd., and Dussek Bros. & Co., Ltd. Jan. 11, 1928, [Convention date]. Mineral and tar oils.-Synthetic resin, such as coumarone, is dissolved in the oils used for impregnating the paper insulation of cables.
Patent GB-184332-A (GB)
Title: Improvements in or relating to machines employed in the manufacture of brushes
IPC: A46D1/08
Filed: 1921-06-24
Abstract: 184,332. Bradshaw, L. June 24, 1921. Brush - making machines; bristles, fixing.-In apparatus for forming bristle knots for insertion in the stock of a brush, means are provided for bending a length of wire round a selected tuft of bristles overlapping the ends of the wire and forcing them into the interior of the tuft. In the construction shown, the bristles 4, disposed vertically, are fed by a travelling comb 1 and feed-device 2 towards the ends of carrier slides 5, 6, which are adapted to close upon a quantity of bristles to form a tuft 4a and thereafter move it bodily to a position between a pair of wiring-jaws 7, 8. The jaw 7 is slidable between guides 9 fixed on the machine bed, the jaw 8 being fixed. The binding wire is drawn from a supply coil 16 by means of driven feed rolls 14 and passes through guides 17, 18 and through a feed passage in the guide 9. As the jaw 7 is advanced a shoulder 19 thereon shears off a length of wire 15 and bends in round a spring-controlled plunger 20 provided with a projecting pin 21. Further movement of the jaw causes an incline 22 thereon to press against the pin 21 whereby the plunger is lifted allowing the wire to be carried forward and bent around the tuft 4a. The ends of the wire are guided in two grooves 24 formed on different horizontal planes in opposite sides of a die which constitutes the opening in the fixed jaw 8. The final part of the movement of the jaw 7 causes the ends of the wire to bend and overlap, the ends being made to penetrate into the tuft by means of two shaped projections 26 at the back of the die. The ends may be crossed one over the other within the tuft 4a by means of a clinching-bar 12 slidable within the jaw 7 and having at one end a pair of pivoted detents 28 shaped so as to move towards eath other when pressed into the tuft. During this movement the extremity of each detent engages with the adjacent end of the wire and bends it inwards, as shown. On withdrawing the jaw 7 and clinching the bar 12, the tuft 4<a> is removed from the die by a buffer 25. The carrier slides 5, 6 now move to a position Y where they separate, allowing the tuft to fall down a shoot 29 and pass between a pair of endless carrier devices 30 driven by a belt 31 and guided by jockey pulleys 32 so that the bound end of the tuft 4a is dipped into a tank 33 of pitch. The pulleys 32 are preferably adjustable by being carried by a bracket 34 adjustable on a pivot screw 35 on a fixed arm 36. The Provisional Specification describes a modified apparatus comprising a wire-feeding device, a stationary jaw and die, a movable jaw adapted to sever the wire and co-operating with the stationery jaw to hold the tuft, and a movable wire-closing die adapted to force the wire into the die on the stationery jaw.
Patent GB-436196-A (GB)
Title: Method of centrifugally casting metal pipe
IPC: B22C3/00
Filed: 1935-06-17
Abstract: 436,196. Mould materials. THORNTON, A. A., 7, Essex Street, Strand, London.- (International de Levaud Manufacturing Corporation, Ltd. ; Toronto, Canada) June 17, 1935, No. 17372. [Class 83 (i)] In lining a centrifugal metal mould with ferrosilicon powder, prior to casting iron therein, the powder used is in such a state of division that not more than 5 per cent is retained on a sieve having 150 mesh, Tyler series, i.e. with diameter of openings 0À014 mm. and not less than 10 per cent on a sieve having 200 mesh or 0À074 mm. diameter. The ferrosilicon may be mixed with sand &c. as described in Specification 423,612 and the coating may be applied by a carrier gas, as described in Specification 430,390.
Patent GB-1236381-A (GB)
Title: Improvements in or relating to prestressed reinforced concrete
Inventor: CLOUGH ROBERT EDWARD
IPC: E04C5/08
Filed: 1967-04-15
Abstract: 1,236,381. Reinforced concrete. R. E. CLOUGH. 12 July, 1968 [15 April, 1967], No. 17383/67. Heading E1W. A concrete member is reinforced by a prestressed composite unit comprising at least one component held under tension by compression in a further component of substantially equal resilience. The compression and tension members of the reinforcement may be of identical specific resilience and of substantially equal length and cross sectional area. The members may all be in the form of rods and the forces of tension and compression may be applied by a jack whilst the compression and tension members are held in a cradle, the .members being welded together at their ends and at intermediate points before removal from the cradle. In another embodiment employing rods, the rods 2 to be subjected to compression are bowed and welded at their ends to the rods 1 to be subjected to tension. The forces of tension and compression are induced by sliding rings 14 along the assembly to straighten the rods 2. The rings may remain in place or may be removed after welding the rods together at intermediate points. In other embodiments a rod or cable under tension is contained within a tube under compression, the resiliences having been tested to ensure substantial equality.
Patent GB-1420544-A (GB)
Title: Sheet feeding apparatus for pritning presses
IPC: B65H9/00
Filed: 1974-04-22
Abstract: 1420544 Registering sheets KOENIG & BAKER AG 22 April 1974 [15 June 1973] 17520/74 Heading B8R Sheets to be fed to front stops 8 and grippers 9 on a continuously rotatable impression cylinder 6 are firstly registered on a feed table 5 by rising and falling front stops 10 and pull-type side lays 11, and are then fed to the grippers 9 by a plurality of suction drums 1-4 rotatably mounted beneath the table, the drums being rotated intermittently and reciprocated laterally so that registered sheets are drawn clear of the side lays during feed. Reciprocation is effected either by a cam-plate 14 which is fixed to the drum shaft 12 and runs netween fixed rollers 17, or by a separate drive means. Suction to the drums is controlled by valves 16.
Patent GB-110977-A (GB)
Title: Improvements in or relating to Apparatus for Concentrating Alluvial Ores or the like.
Inventor: LOBB JOSEPH FROST
IPC: B07B1/30
Filed: 1916-12-07
Abstract: 110,977. Lobb, J. F. Dec. 7, 1916. Inclined-trough washing-apparatus; washing- apparatus with screens.-Apparatus for concentrating alluvial ores and the like comprises an adjustably inclined trough a reciprocated by a cam d and spring e and having three floors f, g, h provided at their lower ends with adjustable weirs j<1>, j<2>, j<3> and adjustable flaps k. The alluvium is fed to the floor f by way of a screen o, water being supplied through pipes p, p<2>. The values collect in a transverse channel u behind the weir j<1> and the tailings pass over the flap k to a screen o<1> and thence to the floor g and so on, the tailings from the screens o, o<1>, o<2> passing to a common outlet, and those from. the weir j<3> passing over the end of the trough. The values are discharged from the channels u through openings m normally covered by flaps n, baffles l being provided for preventing the alluvium from passing through the openings m when discharging the values.
Patent GB-1110481-A (GB)
Title: Improvements relating to the packing of spaces in mechanical structures
Inventor: TREECE DOUGLAS REX
IPC: H02K3/50
Filed: 1965-04-27
Abstract: 1,110,481. Securing coils of dynamo-electric machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 18 April, 1966 [27 April, 1965], No. 17704/65. Heading H2A. [Also in Division B3] A method of consolidating the stator endwinding of a dynamo-electric machine comprises inserting packing means between adjacent coils, the packing means comprising a closed-ended tubular member having a pliable inelastic wall and filling the packing means with a fluid under pressure so as to exert pressure against opposing sides of adjacent coils. The fluid is preferably an epoxy resin which solidifies at ambient temperature. The tubular member is made from natural rubber or a synthetic compound, for example, and is reinforced by an outer covering of a flexible but inelastic material, such as a polyester fibre.
Patent GB-108796-A (GB)
Title: Improvements in the Tanning of Butts or Hides and in Apparatus therefor.
Inventor: MAUDE JAMES EDMUND
IPC: C14B1/00
Filed: 1916-12-09
Abstract: 108,796. Mande, J. E. Dec. 9, 1916. Treating hides with liquids.-Relates to apparatus for tanning butts, hides, &c. of the type in which the skins are kept moving through the tanning-liquor by being supported upon rods or laths carried upon flexible bands or chains passing round drums, wheels, &c., the skins being alternately immersed in the liquor and raised therefrom .The two flexible chains &c. are disposed round a series of guide wheels 2 so as to assume a polygonal formation, and are driven by a sprocket-wheel 5 rotated by gearing 6 which positively couples the wheels 5 together so as to keep the chains in step. The rods 9 carrying the skins 8 are mounted in sockets 16 in the chain links 10, Fig. 4, and ridge pieces 11 alongside the chains keep the rods 9 in position. The rods 9 may be in the form of perforated tubes. A pump may circulate the liquor, delivering it through perforated pipes in the top of the vat in the form of rain, and compressed air may be injected into the liquor. The floor 1<b> of the vat is inclined. The temperature may be regulated by stem coils &c.
Patent GB-878141-A (GB)
Title: Improvements in centre-drilling apparatus
IPC: B24B5/24
Filed: 1960-05-20
Abstract: 878,141. Centre-drilling. KEHR, G., and WICHMANN, C. May 20, 1960 [Feb. 11, 1960], No. 17796/60. Class 83 (3). Apparatus for cleaning centre-holes in hardened shafts, pinions, &c., comprises two stationary oppositely-disposed hard-metal cutting points adapted to be engaged and tightened in the centre-holes of a workpiece and means for rotating the workpiece. The apparatus includes a headstock and tailstock adjustable along guide bars 32, Fig. 1. The hard metal cutting points 10, 21 are carried in stationary sleeves 20, 26, Figs. 3 and 4. The part 20 carries a rotatable belt pulley 15 which has a dog 18 on its front face for rotating the work 11, Fig. 1. The tailstock 27, Fig. 4, has the sleeve 26 slidable and adjustably spring-pressed towards the work. The centre-point may be retracted against the spring-pressure by a wire 28 secured to the sleeve 26 which is led to a foot-pedal. The work is held approximately on the centre line in V-rests 31, Fig. 1. Coolant is supplied through pipes 37 and 38. Chucks. An auxiliary centre-drill, Fig. 7 (not shown), may be carried in one of the centrepoint members and is spring-pressed outwardly thereof.
Patent GB-700288-A (GB)
Title: Improvements in convertible bed-divans and the like
IPC: A47C17/16
Filed: 1952-07-15
Abstract: 700,288. Bed-settees. ROSE, H. Oct. 3, 1952 [July 15, 1952], No. 17832/52. Class 52(2) A bedstead is convertible into a narrow bed, or a wide bed or a settee. It comprises a base A, an extension B having half the width of the base A, and a wide overlay D and a narrow overlay C both correspondingly in size to the base and extension respectively. The base A and extension B each have head and foot boards connected by rigid members including one wall 3 and each are preferably provided with spring- upholstery. The extension B is hinged to the base A and when assembled with the overlays C, D, in the manner shown in Fig. 1, a narrow bed is obtained but when the extension B is turned down, and together with the base A, assembled with the overlays C, D, a wide bed is obtained as shown in Fig. 2. To obtain a settee the extension is turned to vertical or inclined position and held there by means of bolt-like supports mounted on the base A and the narrow overlay is caused to rest against this extension to form the back rest of the settee.
Patent GB-562145-A (GB)
Title: Apparatus for measuring electric inductance and capacitance values
IPC: G01R31/72
Filed: 1942-12-15
Abstract: 562,145. Inductance and capacitance measurements. STREETE, R. H., and 'WHITTICASE, W. Dec. 15, 1942, No. 17841. [Class 37] Apparatus for testing inductance or capacitance values comprises means for supplying a constant high frequency potential to an oscillatory circuit which includes the inductance or capacity to be tested and a cathode-ray indicator for indicating when the circuit is in resonance with the supply. A crystal-controlled oscillator comprising a valve 14 and quartz crystal 15 is connected by a choke capacityresistance coupling 15a, 16, 17, 18 to an amplifier valve 19 which is biassed so that with no grid excitation the anode current is zero. The output of the amplifier is fed to a tuned circuit comprising two variable condensers 21 and the standard coil or the test coil 22. A resistance 23 may be included to damp the oscillation and make the tuning of the circuit less sharp. A double diode triode 24 has the diode anodes connected together and the diode portion connected across the tuned circuit in series with a condenser 32. This condenser is shunted by a potentiometer 33, the D.C. potential across which is applied to the grid of the triode section of the valve 24, which is operated as a D.C. amplifier. The amplified voltage appearing across the cathode resistances 34, 35 is passed to a " magic eye 25. With a standard inductance 22 in the tuned circuit the variable condensers 21 are adjusted until resonance is indicated on the indicator 25 and the coils to be tested are successively plugged into the tuned circuit in place of the standard inductance, resonance being obtained if the inductance of each coil is within the permissible range. A measure of deviation from the standard may be obtained by adjusting one of the variable condensers until resonance is again obtained. The condenser may be provided with a scale calibrated in inductance values. The capacitance of a condenser may be determined by connecting it in shunt with a coil of known inductance. The apparatus may be mounted in a metal case provided with carrying handles and with cup-like contacts mounted on spring conducting arms to facilitate insertion and removal of the coils.
Patent GB-659251-A (GB)
Title: Improvements in or relating to processes of producing fluorocarbon ethers and the fluorocarbon ethers resulting from said processes
IPC: C25B3/28
Filed: 1949-07-07
Abstract: Saturated aliphatic fluorocarbon compounds are prepared by electrolysing a solution of liquid hydrogen fluoride containing a soluble ether compound having carbon-bonded atoms replaceable by fluorine, and recovering one or more saturated aliphatic fluorocarbon ether compounds consisting solely of carbon, fluorine and oxygen. Monoether compounds may have the formula R-O-R1 or R1-CO2-O-CF2-R1, where R and R1 represent saturated aliphatic fluorocarbon radicals which may be the same or different.  Compounds containing five or more carbon atoms in the molecule have boiling points above room temperature.  Other compounds prepared by the process are saturated aliphatic fluorcarbon polyethers which contain two or more oxygen atoms, for example decafluoro-1,2-dimethoxyethane and octadecafluoro diethylene glycol diethyl ether.
Patent GB-1243145-A (GB)
Title: Copolyester resin
IPC: C08G63/185
Filed: 1969-04-09
Abstract: 1,243,145. Ethylene terephthalate-ethylene fluorenate copolyester. GOODYEAR TIRE & RUBBER CO. 9 April, 1969 [13 May, 1968], No. 18098/69. Heading C3R. A linear random ethylene terephthalate-ethylene fluorenate copolyester has repeating units represented by the formulµ in which R is hydrogen, fluorine, chlorine, bromine, C 1-4  alkyl radical, or cycloalkyl and in which the ethylene fluorenate units comprise at least 2.5% of the sum of the ethylene terephthalate and ethylene fluorenate units in the copolyester. In the examples the copolyesters were made (i) by reacting ethylene glycol, D.M.T. and dimethyl bis-9,9-(#-earboxyethyl) fluorenate and polycondensing the product; and (ii) by heating ethylene glycol and D.M.T., adding 9,9(#-carboxyethyl)2-bromofluorene-dicarboxylic acid and further heating and then polycondensing the product.
Patent GB-1340640-A (GB)
Title: Watch case
IPC: C22C29/00
Filed: 1972-04-19
Abstract: 1340640 Sintered watch cases SUWA  SEIKOSHA K K 19 April 1972 [20 April 1971] 18123/72 Heading C7D [Also in Division G3] At least part of a watch case is made of a sintered material containing at least 20 per cent wt. of at least one nitride, up to 40 per cent wt. of a binder and 0-60 per cent wt. of at least one silicide, carbide, boride, oxide or sulphide. The nitrides, preferably 30-95% of the material may be of Ti, Si, Zr, Hf, V, Ta, Nb, Cr, Al, B, Mo, Th, U. The binder may be Ni, Co, Mo, Cu, Fe, Cr, Mn, Ti, Zr glass or a plastics such as polyester, nylon or phenol resin. The carbides and borides may be of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Th, U and the silicides may be of the same except for U and Th. The oxides may be of Al, Be, Mg, Ba, Ca, Sr, Zr, Hf, Si, V, Nb, Ti, Cr, Co, Fe, Mn, Zn, Nd, W, the sulphides may be of Be, Mg, Ca, Ba, Sr, Ce, Cs, Th, U, Fe. The material preferably contains 20-40% carbides and/or silicides and 30-50% borides, oxides, sulphides and 30% maximum of binder.