baber/WOPTO huggingface dataset:
Patent GB-601173-A (GB)
Title: Bearing
IPC: F16C33/14
Filed: 1945-07-10
Abstract: 601,173. Bearings. THORNTON, A. A. (Cleveland Graphite Bronze Co.). July 10, 1945, No. 17582. Drawings to Specification. [Class 12 (i)] [Also in Group XXXVI] A bearing structure has the working surface composed of 2 to 25 per cent tin and the balance lead, this surface being formed by simultaneous electro deposition of the tin and lead on a supporting backing. The preferred range is 6 to 10 per cent tin. The backing preferably of steel and having a layer of silver or of copper-lead to provide an intermediate layer in the bearing is first anodically etched at 6 volts for one minute in an electrolyte of 30-80 grams sodium or potassium cyanide per litre and 30-80 grams of sodium or potassium hydroxide per litre, rinsed, pickled in hydrochloric acid for one minute, rinsed again, and then given a strike of silver, copper, or tin, in readiness for the electroplating. The plating bath preferably consists of lead as fluoborate 90-110 grams per litre, tin as fluoborate 8-12 grams per litre, free fluoboric acid 30-40 grams per litre, gelatine 1-4 grams per litre, and a hydroxybenzene such as resorcinol 3-7 grams per litre or pyrogallol ¢-2 grams per litre, the current being 20 amperes per square foot and a lead-tin alloy anode being used.
Patent GB-897714-A (GB)
Title: Apparatus and method for vulcanizing rubber sheet material
IPC: B29C35/02
Filed: 1960-05-19
Abstract: In vulcanizing travelling rubber sheet, e.g. tyre chafer strip, by sandwiching it between travelling pressure-applying means comprising two independent elements one of which is <PICT:0897714/IV (a)/1> heated, e.g. a rotating heated drum and a moving endless pressure belt, provision is made to allow gases to effuse from the rubber sheet by interposing on either side of it, i.e. between it and each pressure applying means, separate travelling gas-pervious means, e.g. two endless fabric belts.  As shown, a continuous unvulcanized rubber sheet 10 is wound off a roll 12, its protective liner 14 being suparately wound on to a roll 16, and is passed over a heating drum 18, e.g. at 290 DEG F., a power-driven hot drum 20, e.g. at 320 DEG F., a cooling drum 22, and is finally wound on to a power-driven roll 24 in alternate convolutions with a protective liner 26 pulled off a roll 28.  A suitable vulcanization time is 10 minutes and, as it passes over the heating drums, the sheet 10 is sandwiched between two endless gas pervious belts 30 and 32, whilst an endless hugger belt 38 of fabric reinforced rubber presses the sandwich against the drums. Roll 40 tensions belt 38 and rolls 34 and 36 belts 30 and 32, whilst idler rolls 42 position the belts for large area contact with the drums.  If desired belt 32 and its associated rolls, and liner rolls 16 and 28 may be omitted in which case the sheet 10 is wound on and off rolls and passed through the apparatus accompanied by its own protective liner of previous fabric. Suitable gas previous fabrics are 8-ounce rayon or cotton duck or 36-mesh stainless steel cloth.
Patent GB-1080297-A (GB)
Title: Improvements in method and apparatus for drying wet pulverulent material
Inventor: STEPHANOFF NICHOLAS NICKALEVIC
IPC: F26B17/10
Filed: 1965-04-27
Abstract: 1,080,297. Spray drying wet pulverulent material. FLUID ENERGY PROCESSING & EQUIPMENT CO. April 27, 1965, No. 17674/ 65. Headings B1B and B2F. Dry pulverulent material of fine particle size is obtained from wet pulverulent material by atomizing it in a heated atmosphere, centrifugally separating lighter particles from heavier particles after drying, and returning the heavier particles to the heated atmosphere. The wet material is drawn through conduit 44 into the inner chamber 34 of a nozzle assembly (Fig. 3) where the wet material is subjected to vortex action by a high-pressure gas at low temperature, introduced through conduit 38 into annular chamber 36 and issuing into chamber 34 through three passages 40. The dispersion of wet material in gas formed in chamber 34 is discharged through nozzle 46 into flash-drying chamber 14 (Fig. 1) where it is contacted with hot, low-pressure gas introduced through inlets 16, and rapid evaporation of liquid on the particles takes place. Chamber 14 leads into the inlet section 20 of a vortex-type drying mill which is supplied with hot gas through tangential ducts 22. The cross-section of chamber 14 and of section 20 is wider at the top than at the bottom. The dispersion moves as a vortex along section 20, and is then conducted by upstack 24 into classifier section 26, from which the fine dry particles are withdrawn through outlet 28, while the heavier particles are returned through end 30 into the section 20 of the mill. The high-pressure gas supplied to the nozzle assembly through conduit 38 may be air. The gas passes through passages 40 with at least acoustic velocity. Low pressure air is supplied through conduit 54 to the shroud 52, and issues into the flash chamber through nozzle 56 which envelops the main nozzle 46. The hot gas supplied to the flash-drying chamber and the inlet of the mill through inlets 16 and ducts 22 may be air, superheated steam or hot combustion gases. The apparatus may be used to obtain fine particles of calcium carbonate, titanium dioxide, and kaolin. An apparatus comprising two units of the type shown in Fig. 1, but with a common upstack, may be assembled; and it is stated that coating of one material by another may be effected in the upstack.
Patent GB-186429-A (GB)
Title: Improvements in oscillating gear applicable for electric fans and other purposes
IPC: F04D25/10
Filed: 1921-07-01
Abstract: 186,429. Railing, A. H., and Angold, A. E. July 1, 1921. Mounting.-An adjustable-throw crank which is adjustable while the crank is in motion and is provided with an indicator showing the throw of the crank, is particularly described for oscillation of a desk-fan in a variable arc. The crank is of the known type which comprises a plate F pivoted at E<1> on a flange E on the driven spindle 0, and carrying a crank-pin G. The plate F is moved about its pivot E' so as to set the pin G at the axis of the spindle 0 or at varying distances therefrom and is held in its required position by a detent formed by curving the plate E and mounting a spring on the pivot E<1> to force the overhanging end J to engage grooves or holes on the upper side of the plate E, which are marked to indicate the eccentricity of the crank-pin. The spindle 0 is driven by reduction gear from the fan spindle.
Patent GB-848563-A (GB)
Title: Improvements in or relating to chucks
Inventor: JENNINGS ALFRED GEORGE
IPC: B23B31/20
Filed: 1956-06-09
Abstract: 848,563. Chucks and sockets. BIRMINGHAM SMALL ARMS CO. Ltd. July 9, 1957 [June 9, 1956], No. 17880/56. Class 83 (3). In a chuck for holding a tool such as 20, with a screwed end 20a, the body 2 is tapered for mounting in a machine spindle, and a parallel bore 5 receives a bush 14 screwed to engage the end 20a. The bush is splined to the body by a key 15. A screw-cap 18 on the body engages a split collet 21, and a back centre 9 is adjustable in the body by a screw 10 and is locked by a screw 13. In use, the members 14, 18, 21 are removed from the chuck and placed upon the tool shank, the threads 20a being entered a few turns in the bush. The parts are then inserted in the chuck, the cap 18 being screwed until it engages the collet 21. The tool is next screwed into the bush until it engages the centre 9 and until it has advanced the bush almost into contact with the collet 21, whereupon the cap 18 is screwed home to close the collet on the tool and also to engage it with the bush 14, which, together with the tool, is thereby locked axially.
Patent GB-1470336-A (GB)
Title: Process for the preparation of an impregnated building material and the product thereby obtained
IPC: C04B20/10
Filed: 1974-04-24
Abstract: 1470336 Hydrophobous building material NYA ASFALT AB 24 April 1974 [4 May 1973] 17964/74 Heading C1H [Also in Division D1] A hydrophobous building material containing an inorganic ballast material and hydraulic binder is prepared by mixing the ballast material, at least 5% of which by volume, based on the whole volume of ballast used, has been made water-repellant by impregnation with waterrepellant material, with the rest of the ingredients required to form the building material, the predominant part of the water-repellant ballast having a grain size of 0À1 to 4 mm., the amount of water-repellant ballast material and the grain size thereof being selected so as to impart to the building material a water penetration ability while subjected to a pelting rain not exceeding 0À5 litre/m.<SP>2</SP> per hour and a wet vapour diffusion of at least 1 g./m.<SP>2</SP> per hour at a pressure of 1 mm. Hg. Various silanes and siloxanes are listed as exemplary water-repellant material. The ballast material may be naturally occurring mineral material, crushed cement mortar, lime mortar, concrete, clay and brick. The hydrophobous building material may be used as a surface layer. In the example, a mortar is made from crushed or finely divided stone and a binder of lime and cement, the ballast having been impregnated with a solution of silane in methanol.
Patent GB-221193-A (GB)
Title: Improvements in and relating to railway and like points or switches
IPC: E01B7/04
Filed: 1924-07-28
Abstract: 221,193. Burn & Co., Ltd., and Chestney, G. P. Aug. 27, 1923, [Convention date]. Point-tongues, mounting of.-Each tongue 3 is secured to one part 5 of a hinged fish-plate, having its pivot arranged at one side of the centre line of the tongue and lead rails. The other part 4 is secured to the lead rail 2, the stock rail 1 and to one part 7<b> of the heel block 7, the other part 7<a> being secured only to the stock rail 1. The hinge pin 6 may be located beyond the joint, so that the heel of the tongue separates from the lead rail as at 13a when the tongue is opened. The tongue 3 may be riveted at 10 to the heel block 7, and the heads of the rivets and the adjacent bolts 9 may be countersunk or let in flush.
Patent GB-569148-A (GB)
Title: Burner for pulverulent fuel
IPC: F23L17/00
Filed: 1943-11-01
Abstract: 569,148. Pulverulent fuel burners. WATSON, J. Nov. 1, 1943, No. 17998. [Class 75 (i)] Pulverulent fuel and air is supplied by a pipe E to a chamber D where it mixes with secondary air which is supplied by a pipe A to an annular chamber surrounding the chamber D and is caused by plates G to pass to the front of the chamber so as to become heated by the burner flame before entering the rear of the chamber D through a semicircular aperture M. The mixture is discharged through an aperture F surrounding a flame spreader L. Part of the secondary air is allowed to enter the chamber D through small holes K to disintegrate the fuel and part is discharged through small holes H at the front of the burner to protect the burner mouth from excessive temperatures.
Patent GB-830026-A (GB)
Title: Improvements in or relating to impedance-matching devices
IPC: H03F3/54
Filed: 1957-06-06
Abstract: 830,026. Impedance matching devices. SIEMENS & HALSKE A.G. June 6, 1957 [June 8, 1956], No. 18097/57. Class 40 (8). An impedance matching device, particularly for matching the input impedance of a valve with the characteristic impedance of a transmission line comprises conductor sections 6, 8, Fig. 1, parallel to a conductive surface 9 and capacitively coupled through a curved surface on the section 6 and an arm 7 pivoted to the section 8. As illustrated in Fig. 1, the conductive surface 9 is conductively connected through the end wall 5 of the valve housing 4 and a spring 11 to the valve grid 2, and the arcuate section 6 is connected through springs 10 to the valve cathode 3. The sections 6, 7, 8 may be of rectangular, circular, or other crosssection, and may lie between the surface 9 and a similar surface connected to and parallel with the latter. The characteristic impedance of the portion of transmission line formed by the elements 7, 8 and the surface 9 is the same as that of the coaxial line (not shown) to which it is connected, and is matched to the input impedance of the portion of transmission line formed by the element 6 and the surface 9 by rotation of the arm 7. In the embodiment of Fig. 3 the conductive surface 9 is replaced by surfaces 12, 13 at right angles. The elements 6, 7 are parallel to the surface 12, and the con- .ductor 8 is replaced by an element 14 parallel to the surface 13. The coaxial line is coupled by a plug 18 with its inner conductor connected to the conductor 14 and its outer conductor to the surface 13. Additional surfaces may be provided connected to the surface 13 to house the elements 6, 7 and 14. In a further modification the valve housing is cylindrical and the surface 13 is curved into a part-cylindrical form.
Patent GB-543689-A (GB)
Title: Improvements in protective arrangements for high frequency communication systems
IPC: H04L25/08
Filed: 1940-12-24
Abstract: 543,689. Protective arrangements ; inductances. STANDARD TELEPHONES & CABLES, Ltd. Dec. 24, 1940, No. 18102. Convention date, Jan. 3. [Classes 38 (ii) and 38 (iv)]  The effect of lightning on a high frequency communication line is minimized by coils 16 connected through space discharge protectors or directly to the lines and at the centre point to earth. A coil A has two toroidal windings on a core 22, half of each winding lying in an under layer and the remaining half in an upper layer. A coil B has two windings on a similar core 27 the wires being twisted together before winding to produce a coil of relatively high distributed capacity. Coil A has a low inductance, but low distributed capacity and higher leakage inductance. All four windings are connected in "series aiding," the windings of coil B being earthed at their junction and one winding of coil A being connected to the extremity of each winding of coil B. One or both of the cores may have an air gap, e.g. of 3 mils, to minimize saturation effects due to direct current potentials, as when the line is employed for D.C. telegraphy in addition to carrier current voice frequency signals. One of these systems may be installed at each end of the entrance cable to a transmitting or receiving station. According to the Specification as open to inspection under Sect. 91, in suitable cases a single coil such as A may be used with the junction of its windings earthed. This subject-matter does not appear in the Specification as accepted.
Patent GB-592259-A (GB)
Title: Improvements in or relating to thermionic amplifiers and modulators
IPC: H03F1/06
Filed: 1943-11-02
Abstract: 592,259. Thermionic amplifiers and modulators. STANDARD TELEPHONES & CABLES, Ltd. Nov. 2, 1943, No. 18162. Convention date, May 18, 1942. [Class 40 (v)] An amplifier, Fig. 1 (not shown), comprises a number of push-pull pairs with their input and output tank circuits connected at #/2 intervals to transmission lines to which the input and output circuits are coupled at any point. Each pair has its own D.C. sources. A modulator comprises two push-pull pairs having their input and output tank circuits connected by #/2 lengths of transmission line, the conductors of one of which are transposed so that a carrier applied at 94 produces no current on the output circuit 110 except when the pairs are unbalanced by the application of a modulating current at 106. As an alternative, the modulating wave may be applied to the grid circuits.
Patent GB-163612-A (GB)
Title: Improvements in or relating to foot-arch supports for footwear
IPC: A43B7/22
Filed: 1920-07-02
Abstract: 163,612. Darling, S. July 2, 1920. Foot-arch supports.-A foot-arch support 1 with side flaps 2, 3 comprises three layers of leather 5, 6, 7, the layers 5, 6 being connected by suitable rows of stitching to form longitudinal pockets 10, and the layers 6, 7 being connected similarly to form transverse pockets 19. Into as many of the longitudinal pockets as are required bv individual wearers is introduced a metallic bar or spring 11, the ends of which are received in transverse pockets 14, 15 between the layers 5, 6, one pocket being left open to facilitate the insertion or removal of the bars 11. Suitable metal plates 12, 13 may be placed in the pockets 14, 15 so as to prevent the bars 11 from wearing out the base layer 5. Similar bars 20 are introduced into the transverse pockets 19, which are made preferably in a fan-shaped formation. The bars 20 are bent at their'ends when they enter side flaps 2, 3, thus serving to stiffen these side flaps, which afford additional support to the footarch. The stitching round the edges of and between layers 6, 7 may be omitted at one end in order that the bars may easily be inserted or removed. The main support is extended rearwardly in order to form a heel-piece 4 into which a resilient pad may be fixed.
Patent GB-1000767-A (GB)
Title: Diffusers for fluids
Inventor: FOLL JEAN LE
IPC: F04D29/68
Filed: 1963-05-08
Abstract: 1,000,767. Diffusers. INTERNATIONAL RESEARCH & DEVELOPMENT CO. Ltd. May 8, 1964 [May 8, 1963], No. 18227/63. Heading F2R. A diffuser has a main throat 1 and one or more throated outlet passages 3 which provide a substantially continuous circumferential opening downstream of the main throat to withdraw some of the fluid flowing through the diffuser, the wall 2 of the diffuser between the main throat and the outlet passage being shaped to ensure substantially constant fluid pressure adjacent the wall. The passage 3 is preferably followed by a diffuser 5 and the wall 2 preferably turns between the throats A and B through more than 90 degrees, e.g. by 150-180 degrees. Formulµ are given for the profile of the wall 2. The walls 4 downstream of the openings may diverge by up to 90 degrees.
Patent GB-129723-A (GB)
Title: Improvements in or connected with the Frame Members of Aeronautical Machines.
Inventor: MAYROW JAMES JACOB
IPC: B64C3/18
Filed: 1917-12-08
Abstract: 129,723. Mayrow, J. J. Dec. 8, 1917. Framework. -Metal spars, longerons, ribs, and like members of aircraft are composed of webs secured to rods or channels by slitting the edges of the webs so as to form tongues which are then bent over the channels. Figs. 1 and 2 show a web a slit at b to form tongues c, c<1>, the former of which are bent over the outside of the channels d, while the latter are bent round the inside of the channels. Pairs of webs a may be arranged one at each side of the channels, and may be crossed or parallel. Fig. 7 shows a modification with a single web arranged centrally within the channels, the tongues c, c' being bent as shown and clipped to wires f. The slits b may stop short of the edges of the web as shown in Fig. 8, in which case the tongues are bent and the channels threaded through the slits as shown in Fig. 9. The web a may be secured within the channels by means of bent clips j, Fig. 14, which may be formed with bosses k and riveted. Planes, construction of.-Fig. 20 shows a joint for connecting the channel d at the point where it crosses a spar m, the connexion comprising a plate p formed with the loops c and with bent tongues l engaging the sides of the spar. Similar plates may be used to connect the leading and trailing edges to the ribs.
Patent GB-762034-A (GB)
Title: Improvements in or relating to apparatus for forming hinges and for securing the hinges to record cards
Inventor: HALL MARCHAND BLANCHARD
IPC: B21D53/40
Filed: 1954-06-22
Abstract: 762,034. Making hinges; punching; bending; shearing. ACME VISIBLE RECORDS Inc. June 22, 1954, No. 18265/54. Classes 83 (2) and 83 (4). [Also in Group VII] A machine by punching, bending and shearing forms from metal strip hinges having prongs and forces the prongs through record cards to secure the hinges thereto. The machine shown in plan view in Fig. 1 simultaneously fashions hinge elements from metal strips 14 fed into each end and fastens a pair of elements to the ends of a record card. Each strip 14 is fed step-by-step by a pair of geared rollers 24 driven by a pawl and ratchet mechanism 31 reciprocated through links by a cam 126 on the camshaft 69 which is rotated by a onerevolution clutch under the control of the operator. A punch block 49, Figs. 3 and 4, moved downwardly against a spring 52 by a lever 56 oscillated by a cam 68 carries punches 44, 46 which co-operate with correspondingly shaped holes 42, 43, Fig. 5, in the die block 41 to form prongs 48 and flaps 79. The strip 14 is stripped from the punches by a spring- loaded plate 71 secured by bolts 72 to the punch block 49 and is held against a forming block 80 by a flat spring 93. The edge of each flap 79 is curled by a bending tool 74, Fig. 7, whereafter tools 77, 78, Fig. 8, turn down the prongs 48 and flaps 79, respectively. The punch block 49 carries the bending tools 74, 77, 78, and a cam 88 which slides a horizontal tool 83, Fig. 9, against a spring 84 to bend each flap 79 through more than a right angle. A shearing plunger 94, Fig. 10, actuated through a link 101 by a cam 108 co-operates with the end of the forming block 80 to shear a hinge element from the formed strip, to drive the prongs of the element through a record card inserted into the machine, and to force the flap 79 of the element against a recess in the die block 109 to bend it into a closed loop. A pair of pivoted members 112 are rotated to bend the prongs flat against the record card by a bar 114 reciprocated by the cam 108.
Patent GB-1535668-A (GB)
Title: Junction device
IPC: F16B7/18
Filed: 1977-05-03
Abstract: 1535668 Truss connector G SIMONE 3 May 1977 [17 May 1976] 18412/77 Heading F2M A connector for trussed structures comprises a central core 1 having a plurality of radial seats 10 having axes orthogonal to the axis of the core, a plurality of coupling elements 2 designed to be secured to the ends of the truss members 4 and to be inserted into the seats 10, locking means such as a bolt 3, the outward end of each coupling element being enlarged and having a plane face 7 inclined to the axis of the central core and a tang 5 connected, e.g. by a screw-threaded portion 6, to the face 7, the tangs being connected to the ends of the members 4 as by welding at 17. A closing plate, which may conform to the upper cross-section of the ends 8 of the coupling elements, is held by nuts 15. A hole 16 in this plate aligned with hole 12 in the core allows the connector to be coupled to an adjacent connector.
Patent GB-678885-A (GB)
Title: Improvements in work-gripping and driving devices for lathes
Inventor: BUSH JOHN THOMAS
IPC: B27C7/04
Filed: 1950-07-24
Abstract: 678,885. Drivers and carriers. SMITH, R. N. May 7, 1951 [July 24, 1950], No. 18425/50. Class 83 (iii). A work-gripping and driving device, particularly for a veneer-peeling lathe, comprises an inner driver 2 having workengaging claws 3, 4 and being formed integrally with, or attached to, the headstock or tailstock spindle 1, an outer driver 9 mounted on the driver 2 and having claws 11, 12 surrounding the claws 3, 4, and means for clamping the driver 9 to the driver 2 in position to grip the work, the driver 9 being slidable axially to disengage itself from the work and substantially at right angles to the spindle 1 to disengage the chuck 2. The spindle 1 has a tapered part 17 with flats to engage a bore 16 in the driver 2, a centre 5 being formed on the end of the spindle or on the driver. A slot 10 in the driver 9 engages flats formed on a shank 6 of the driver 2 on which it is held by a nut 8 and preferably a washer 14 of horse-shoe form interposed between the nut and driver 9. The latter can be removed from the driver 2 when its claws, which may be carried by spokes supported on a hub, interfere with the turning operation. In a modification, a number of outer drivers 9 may be provided, mounted upon each other.