baber/WOPTO huggingface dataset:
Patent GB-164769-A (GB)
Title: Improvements in nosings for stair treads
IPC: E04F11/16
Filed: 1919-09-17
Abstract: 164,769. Frood, H. Sept. 17, 1919. Stairs and staircases. - A reversible nosing for stairs has thickened wearing parts 3 connected by a thinner part 4 adapted to fit round the stair-nose 5. Thin marginal extensions 7 may be provided so that the nosing and the front edge of the stair tread 6 may be attached by one set of fasteners, the lower extension being folded as shown. The nosing may be made of indiarubber or fibrous material bonded with cementitious material such as india-rubber, phenolic resin, bitumen, or gums, and may be strengthened by metal plates or wire fabric. The thickened portion 3 may be formed during the weaving, by doubling, or by stitching on separate pieces.
Patent GB-1355483-A (GB)
Title: Electrical connector
IPC: H01R13/428
Filed: 1972-05-16
Abstract: 1355483 Edge connectors AMP Inc 16 May 1972 [28 May 1971] 22823/72 Heading H2E A contact 12, e.g. for a printed circuit connector comprises a contacting portion 19, a wire connecting portion 12, a securing portion 21 having a slot 27 defining a spring arm 28 carrying a projection 26 and a projection 31 extending from the face of the portion 21. The slot is positioned nearer the side 24 of the securing portion with its edge 27a longer than its edge 27b to help maintain the side 25 relatively rigid. As the contact is inserted into slot 11 in the housing 10, the projection 26 forces the arm 28 inwards and causes the side 25 to bear against the wall 13b of the slot 11, whilst projection 31 forces the face 23 against the wall 14b.
Patent GB-803056-A (GB)
Title: Moulds for fibrous cement pipes
IPC: B28B21/20
Filed: 1956-07-24
Abstract: 803,056. Moulds for branched fibrous cement pipes. CAOLITA S. A. July 24, 1956 [July 28, 1955], No. 22837/56. Class 87(2). A mould for a branched fibrous cement pipe comprises a split female mould 15, 16 and a core. of separate detachable parts A, B, C, each part having an inflatable rubber tube surrounding a solid body, the main part A having hollows 6 adapted to receive projections 11 on the ends of the supplementary parts B, C. Inflation of the tubes moulds the pipes against the female mould and subsequent deflation renders easy the removal of the core parts from the moulded pipe. The hollows 6 in a wooden body 1 of the main part A are lined with the rubber tube 2, the projections 11 on the wooden bodies 7 of the supplementary parts B, C are covered with the rubber tube 8. In operation a fibrous cement sheet 12 is wrapped round the main core A, abutting edges beaten together to form a tube and two holes, the shape of the join with the branches, cut in the sheet 12 over the hollows 6. Similarly sheets 13, 14 are wrapped and beaten around the supplementary cores B, C. The cores A, B, C are then assembled, the connecting joints of the fibrous cement sheets 12, 13, 14 beaten to unite them, the assembly is then placed in the female mould 15, 16, the mould secured and the cores inflated to mould the pipe. Holes are provided in the mould (not shown) for the escape of water contained in the fibrous cement.
Patent GB-1275709-A (GB)
Title: Thermoelectric element
Inventor: LANDECKER KURT
IPC: H01L35/08
Filed: 1971-04-19
Abstract: 1275709 Thermoelectric devices K LANDECKER 19 April 1971 [10 March 1970] 22859/71 Heading H1K In a thermoelectric device comprising a P- type limb and an N-type limb joined to form a junction, the limbs are also connected to one another by at least one shunting conductor to provide a leakage current path between the limbs. This leakage path is said to provide the advantages of a cascaded stage thermoelectric unit. As shown, Fig. 1, a pair of doped Bi 2 Te 3  limbs separated by an insulator 11 and joined by a bridge 12 are provided with a shunting conductor 14 comprising a strip of silver which may be applied as a suspension, or by spraying or soldering. The shunt may be divided into a plurality of sections to reduce the longitudinal heat flow. The insulator 11 may comprise a strip of paper secured to the elements with epoxy resin. In a modification a thick suspension of Ag is applied to the adjacent faces of the limbs which are then pressed together to squeeze out excess material, and then secured by binding with insulating tape or by encapsulating in insulator while the suspension dries. In a second embodiment, Figs. 2 and 3 (not shown) a wire is wound round a pair of spaced parallel limbs in a figure of eight pattern, adhered to the limbs and cut at the outer faces of the limbs to divide it into a plurality of separate shunting conductors. In a -third embodiment, Figs. 4 to 6 (not shown) four limbs (two P-type and two N-type) are arranged in a square array and joined by cruciform Ag films subdivided along the length of the limbs. The working junction is provided at one end of the assembly by bridging all four limbs and connections are made at the opposite end so that the limbs form two thermocouples connected in parallel. In another embodiment, Figs. 7 and 8 (not shown) the limbs are in the form of annuli soldered to a metal tube forming a bridge near its ends. Annular contacts are applied to the outer faces of-the limbs and the inner faces of the limbs are coated with Ag films which are connected together by wads of crumpled Al foil to form the shunting conductors. A plurality of such devices may be clamped together so that the tubes form a heat transfer duct. In further embodiments a pair of limbs are joined end to end and Ag patches spaced along their lengths are connected either in symmetrical pairs, Fig. 9 (not shown) or so that all the paths on the N- and P-type limbs are connected to the end contacts of the P- and N-type elements respectively, Fig. 10 (not shown).
Patent GB-982634-A (GB)
Title: Improvements in sewing machines
IPC: D05B27/06
Filed: 1963-06-07
Abstract: 982, 634. Sewing machines. SOC. RHODIACETA. June 7,1963 [June 8,1962], No. 22883/63. Heading D1G. A sewing machine comprises a pair of differential feed dogs, and a pair of differential feeding feet arranged for co-operation with the feed dogs to stretch the work. Feed dogs 3, 4 are provided with feed advance and feed lift motions from respective eccentrices 17,18 on a main shaft 10 drawing the needle bar 12, the feed bar carrying the trailing dog 3 being connected to the feed lift shaft via a swinging link 30 in order to reduce the feeding stroke of dog 3 relative to that of the leading dog 4. A shaft 26, driven from shaft 10 via gearing 19, 20, 21, 22 and shafts 23, 24, 25, carries on eccentric 27 adapted to impact feed advance motion to a trailing feeding foot 6 co-operating with dog 3, and an eccentric 28 adapted to impact feed advance motion to a leading feeding foot 7 co-operating with dog 4. An eccentric 29 on shaft 26 is adapted to impact feed lift motion to the feet 6, 7. Shaft 26 is coupled to the vertical presser bar carrying a presser foot 5, the vertical shaft 25 coupled by gearing 22 to shaft 26 is telescopic, and the arrangement is such that the presser foot 5 and the feeding feet 6, 7 rise and fall alternately. Shaft 10 is also coupled by gearing 13,14 and a shaft 15 to a shaft 16 carrying a rotary hook.
Patent GB-167390-A (GB)
Title: Improvements in blind attachments
IPC: E06B9/60
Filed: 1920-08-04
Abstract: 167,390. Rivard, A., and Sparling, L. Aug. 4, 1920. Roller-blinds; curtains, suspendings.-A blind roller, adjustable in length, comprises an inner tube 1, fitted at one end with a pin 2 adapted to be screwed into an end bracket 22, and at the other end with a longitudinally movable screw 4 which terminates in a pivot 5 engaging the end bracket 23, the brackets 22, 23 being secured to the window frame by spikes 24. The blind fabric is attached, by piecing tongues 17, to the tubular roller 16, having short end tubes 7, 14 telescopicallv fitting therein and revolving on aforementioned pins 2, 4. The roller spring 19 is secured at its ends 21, 20 to the tubes 7 and 1 respectively. The brackets 22, 23 may be provided with projections 28, 29 to support a curtain rod.
Patent GB-701412-A (GB)
Title: Improvements in or relating to testing apparatus for short circuited turns
Inventor: COHEN MICHAEL
IPC: G01R31/72
Filed: 1951-10-03
Abstract: 701,412. Testing for faults. FORTIPHONE, Ltd. Sept. 25,1952 [Oct. 3, 1951], No. 23049/51. Class 37  A coil to be tested for short-circuited turns and number of turns is linked with the field threading a pair of coils in a magnetic bridge, which coils are coupled to a local oscillator, the signals :from the pair of coils being rectified and fed to a D.C. bridge circuit. A magnetic core 1 carries three coils 2, 3, 4 forming a magnetic bridge. The central coil 2 is fed from a local oscillator 5, and the coils 3, 4 are connected together and earthed at their junction. The coils 3, 4 are connected to similar valve amplifiers 6, 7 followed by rectifiers 9, 10. The rectified outputs are passed to a D.C. bridge balance circuit 11, the output of which is fed to an indicating meter 12. The apparatus is first balanced, so that the indicator 12 reads zero. A coil 15 to be tested is then slipped over one end of the core 1 and an indication is given if the coil contains short-circuited turns. The magnetic bridge portion 1, 2, 3, 4 is preferably made as a separate unit enclosed in a casing from which projects the end of the core over which coils 15 are to be placed for testing. This unit is made with plug-in terminals so that it can be plugged into a second unit containing the parts 6, 7, 9, 10, 11, 12. To test a coil for correct number of turns the apparatus is given a predetermined degree of unbalance, and the coil to be tested is shortcircuited and placed over the end of the core. Balance is restored if the number of turns is correct. The predetermined degree of unbalance may be introduced by means of an adjustable attenuator in the output circuit of one of the coils 3, 4. Alternatively, a standard coil of the correct number of turns is shortcircuited and placed on one end of the core. The coil to be tested is shortcircuited and placed on the other end of the core. Balance is restored if the number of turns is correct. Instead of a straight core in the magnetic bridge, a T-shaped core may be employed, the central limb carrying the coil 2.
Patent GB-754895-A (GB)
Title: Sink-and-float separation apparatus and process
IPC: B03B5/42
Filed: 1954-08-09
Abstract: 754,895. Sink-and-float separation process. METALLGES AKT.-GES. Aug. 9, 1954 [Aug. 17, 1953], No. 23110/54. Class 82(2). A sink and float separation process comprises introducing the materials to be separated and the heavy medium separately in a turbulent-free manner into a trough of cross-section forming a segment of a circle through a conical trough in a direction parallel to the axis of the trough, lifting the sunken material substantially to the level of the heavy medium, and removing the floating material by flowing through a conical overflow in the direction of the axis of the trough. As shown, the material is fed into a conical trough 6 which opens near the bottom of a segmental trough 4 having a paddle wheel 14 with blades 12, which may be rectangular, as shown, or trapezoidal or twisted, Figs. 3 and 4 (not shown), set at an acute angle to the trough in the direction of rotation of the wheel, by which the heavy material is removed. Medium is supplied to the conical trough through apertures 42 from a chamber 40. The heavy material is discharged into a shoot 32 and the light material by way of an opening 24 situated at the top of a discharge member 20 which is divided into two portions 26 and 28 of different slope. To prevent the outlet becoming dammed, the width of the outlet is adjustable so that the velocity of flow may be controlled. A pair of curved baffles 36 on the inner side of the paddle wheel prevents turbulence on the surface of the heavy medium due to the motion of the wheel.
Patent GB-532000-A (GB)
Title: Improvements in or relating to curtain hooks
IPC: A47H13/16
Filed: 1939-08-11
Abstract: 532,000. Curtain hooks. THACKRAY, M. F. Aug. 11, 1939, No. 23166. [Class 52 (v)] Curtain hooks are formed with a bent shank 1 having at one end a sharpened point to penetrate the curtain and at the other end a loop 3 forming an abutment.
Patent GB-882899-A (GB)
Title: Improvements relating to cylinder-type paper machines and the like
IPC: D21F9/04
Filed: 1960-07-01
Abstract: 882,899. Cylinder paper-making machines &c. DORRIES A.G., O. July 1, 1960 [July 4, 1959], No. 23188/60. Class 96. To reduce the strains on the edge-portions of the wet felt 6 of a cylinder papermaking machine, and thus to increase the working life of the felt 6, its edge-portions are supported where they extend beyond the ends of the forming surface of the cylinder mould 2, by guideplates 5 shaped mainly to conform to the mould surface. The guide-plates, which may be of polished stainless steel, enamelled material, glass, porcelain, or plastic, are secured to the wall of the vat 1.
Patent GB-621148-A (GB)
Title: A slide-rule adapted for english monetary calculations
IPC: G06G1/00
Filed: 1946-08-03
Abstract: 621,148. Calculating- apparatus. PARKES, A. W. Aug. 3, 1946, No. 23190. [Class 106 (i)] A calculator for problems involving English monetary units comprises two relatively movable members, one bearing a scale of numbers and percentages arranged logarithmically and the other bearing a logarithmic scale of monetary values subdivided into three or more parts extending from end to end across the width of the member. Fig. 1 shows a slide-rule comprising a stock bearing a money scale extending from “d. to ú100, marked in accordance with the logarithms of the decimal equivalents of ú1 and subdivided into five parts, and a slide bearing a number and per cents scale extending from 1 to 10, marked logarithmically The part of the logarithmic money scale from “d. to 2¢d. is repeated in decimals of 1d. The number scale 1 to 10 may be expanded and arranged in a double or treble row or contracted and arranged in half a row and then extended to 100, with consequent expansion or contraction and rearrangement of the money scale. Supplementary money and number scales extending from “d. to ú1000 and from 1 to 100,000 may be added for calculating approximate answers to give the order of magnitude of the result required. A logarithmic number scale may be added to the stock and a logarithmic money scale may be added to the slide for pure number problems and "rates in the pound " problems respectively. To avoid the necessity of resetting the slide in certain problems, the number scale may be continued to double length or repeated twice. Special marks may indicate numbers frequently used and a cursor a may be provided. The money and number scales could be marked round relatively movable discs or drums to form disc or drum calculators respectively, suitable registering means being provided. Specification 621,133 is referred to.
Patent GB-155896-A (GB)
Title: Improvements in and relating to rotary compressors and exhausters
IPC: F04C19/00
Filed: 1919-09-20
Abstract: 155,896. Johnston, J., and Globe Pneumatic Engineering Co., Ltd. Sept. 20, 1919. Screw Sprengel pumps.-In a rotary compressor or exhauster of the type comprising an inner rotor c and an outer casing arranged eccentrically and having a centrifugallyheld annular liquid piston in the space between these members, the rotor carries peripheral webs a, through all of which a port d, as shown in the developed plan Fig. 3, is formed at diametrically opposite points of the rotor. Adjacent to each port are deflecting-plates e which serve to displace the gas axially of the rotor during rotation from one side of the port to the other. The number and arrangement of the ports, webs, and plates may be varied. A shrouding-plate f may be mounted adjacent to the rotor or spaced therefrom by distance-pieces g, as shown.
Patent GB-339329-A (GB)
Title: Improvements in the production of continuously burning, parallel arranged electric arcs
IPC: H02M7/08
Filed: 1929-07-29
Abstract: 339,329. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 29, 1929. Supplying consuming devices.-A number of arcs to be operated simultaneously by alternating current are connected across a common mercuryvapour rectifier. In the arrangement shown, the neutral points of two 6-phase transformers B are connected to two arcs D. The other terminals of the transformers are connected to the anodes of a 12-anode rectifier C and the cathode of the rectifier and the other electrodes of the arcs are earthed. The arcs are stabilized by chokes A in the primary circuits of the rectifiers.
Patent GB-812896-A (GB)
Title: Catalytic cracking of hydrocarbons
IPC: C10G47/14
Filed: 1955-08-12
Abstract: Hydrocarbons are cracked by contacting them in the presence of hydrogen with a catalyst consisting of a mixture of particles of less than 100 microns in diameter of (1) a porous inert carrier having 0.05 to 10 per cent by weight of a platinum metal deposited thereon, and (2) an acidic cracking component.  The mixture is such that: n X O.C.I. = 5 to 100 and m X Cm X ds = 0.01 to 0.8 where O.C.I. (olefinic cracking index) is the percentage by volume of dodecene-1 converted to 350 DEG  F. end point liquid cracked products when contacted with the acid component at atmospheric pressure, at 630 DEG F., and at a liquid hourly space velocity of 1; n is the weight fraction of the acid component in the mixture; m is the weight fraction of inert carrier impregnated with the platinum metal in the mixture; Cm is the platinum metal content in weight per cent of the inert carrier; and ds is the density of the inert carrier in grams per c.c. The inert carrier may be alumina, zirconia, titania, silica, magnesia, charcoal, kieselguhr, porous glass, porcelain, pumice, coke, activated carbon, or bauxite.  The platinum metal may be platinum, palladium, rhodium, osmium, iridium, or ruthenium.  The acidic cracking component may be silica-alumina, silica-zirconia, silica-alumina-zirconia, silica-alumina-thoria, silica-magnesia, silica-alumina-magnesia or alumina-boria.  The hydrocarbon charge may boil between 400 DEG  and 600 DEG  F., and the process may be carried out at 400 DEG  to 825 DEG  F., at a liquid hourly space velocity of 0.1 to 10, at a pressure of 100 to 2500 pounds per square inch gauge, and with a molar ratio of hydrogen to hydrocarbon between 2 and 80. Examples of the process are given.  Specifications 576,058, 799,811 and 812,895 are referred to.
Patent GB-598673-A (GB)
Title: Improvements in topping-up devices for electric accumulators
IPC: H01M50/627
Filed: 1945-09-11
Abstract: 598,673. Batteries. CHLORIDE ELECTRICAL STORAGE CO., Ltd., GRAY, R., and JONES, H. C. Sept. 11, 1945, Nos. 23422 and 28926. [Class 53] An accumulator is provided with an opening in one of its side walls at a point corresponding to the normal level of the electrolyte, a filling opening being provided at a higher level or in the top of the accumulator. The side opening is fitted with a liquid-level indicator having a chamber to receive electrolyte flowing from the accumulator when the normal level is exceeded, the chamber being constructed so that any liquid therein can be seen. The indicator may be incorporated in an apparatus for topping up an accumulator with water. Fig. 1 shows a portion of an accumulator having a filling orifice a in the top and a side opening c fitted with a liquidlevel indicator comprising a passage f communicating with the opening c and with a chamber or well g. When water is introduced through the orifice a, liquid rises rapidly into the well g as soon as the level of the liquid in the accumulator rises above the opening c. The indicator is then removed and the opening c closed by a screw plug. Fig. 3 shows a modified form of indicator comprising a receptacle i disposed below the level of the opening c and having an opening j through which liquid overflowing from the accumulator into the receptacle i can be seen. Figs. 4 and 5 show an apparatus for topping up an accumulator with water delivered under pressure from a hand pump s through a delivery tube r adapted to make a tight joint with the filling opening a of the accumulator. A stand m to receive the accumulator is pivoted at n to a lever o which carries the indicator i and is engaged by a spring p at its lower end, The accumutator is placed on the stand in its inclined position as shown in Fig. 4, the indicator i being out of engagement with the opening c. The plug which normally closes the opening c is removed and' the stand raised to bring the accumulator to the vertical position shown in Fig. 5. During this movement the indicator i is brought into watertight engagement with the opening c and the pipe r makes a watertight joint with the inlet a. Water is then introduced into the accumulator till it is seen to overflow into the receptacle i. The stand'is then brought to the position shown in Fig. 4 and the accumulator removed after the plug has been fitted to close the opening c. Specification 598,674 is referred to.
Patent GB-338941-A (GB)
Title: Improvements in apparatus for the digestion of nitrocellulose or purification of cellulose
IPC: C08B5/04
Filed: 1929-07-30
Abstract: 338,941. Hercules Powder Co., (Assignees of Milliken, M. G.). May 29, 1929. Addition to 301,267. Digesters.-In apparatus of the kind described in the parent Specification for the digestion of nitrated cellulose or for the purification of cellulose, the material is forced under pressure together with water through a restricted passage such as a coil of substantial length and relatively small cross-section, a valve being provided for controlling the discharge from said passage, the valve being replaced by or employed in conjunction with a stand-pipe or chamber to effect a substantial equalization of the pressure in the coil between the inlet and discharge ends, As applied to the treatment of gun-cotton, the material is treated in a tube A, fitted with agitating gear, and is forced together with water by a pump B through the coil C at a pressure of 80 lbs. per square inch and a velocity of about 2 feet per second. The apparatus may be made of chrome steel. The coil is steam-heated at e, insulated at g, and provided with a cooling jacket at f, the preferred temperature range being 130-160‹ C. The material passes from the coil through a valve j to the stand pipe X, and from thence to the tank D. The valve j is a conical member pressed against its seat by a spring n positioned between the valve stem and an adjustable stop O so as to open wider in case jamming off the gun-cotton being forced through causes a building-up of pressure. The operation of the valve is ensured by a stream of water which is forced into the coil C through a pipe E adjacent to the valve casing H. A pipe is provided for releasing back-pressure in the stand-pipe, and by means of a pipe T the coil C may be discharged directly into the tank D. A vent pipe y controlled by a valve z is provided in the downward extension X<1> of the stand-pipe.
Patent GB-301565-A (GB)
Title: Process for the manufacture of alkali cyanides
IPC: C01C3/10
Filed: 1927-09-06
Abstract: 301,565. Carpmael, A., (I. G. Farbeninindustrie Akt.-Ges.). Sept. 6, 1927. Alkali metal cyanides are prepared by the action of ammonia and carbon monoxide at temperatures of 400-800‹ C. upon alkali metal hydroxides, oxides or salts such as sodium carbonate, sulphide, formate, acetate or sulphate, potassium sulphate, &c. Water vapour formed by the reaction may be removed from the gas mixture prior to being passed again into the reaction chamber. Diluents or indifferent fillers such as magnesium oxide may be added to prevent caking of the mass, and catalysts such as iron cyanides or other compounds may be added. The reaction may be carried out under pressure and diluent gases such as nitrogen or hydrogen may be added. In an example, a mixture of ammonia and carbon monoxide is passed through an agitated melt of sodium cyanide and sodium carbonate at about 600‹ C.