baber/WOPTO huggingface dataset:
Patent GB-763853-A (GB)
Title: An improved method of bonding cord to rubber
IPC: C08J5/06
Filed: 1954-04-21
Abstract: In a method of bonding cord to rubber e.g. for the manufacture of vehicle tyres, the cord is dipped initially in a relaxed condition in a dilute aqueous solution or dispersion of a bonding agent so that the latter penetrates the interstices of the innermost cord filaments, the concentration of the bonding agent being such as would provide on drying the cord a coating of solids on the innermost filaments without filling completely the interstices therebetween, increased tension is then applied to the cord, to decrease the volume of said interstices and the wet cord is then dipped in a second aqueous solution or dispersion of the same or another bonding agent before, during, or after the application of the increased tension, dried, and embedded in rubber.  The bonding agent or agents may comprise (a) natural or synthetic rubber latex, (b) an aqueous dispersion of a thermosetting resin, e.g. a phenol-adlehyde resin, (c) an aqueous dispersion of an unreacted mixture of a phenol and an aldehyde, (d) an aqueous dispersion of a protein, e.g. casein, gelatin, wheat protein, animal glue, fish glue, albumin, haemoglobin, or dried blood, or (e) a mixture of two or more of the aqueous dispersions (a), (b) and (c).  The solids concentration of the first dip is preferably 1 to 7 per cent by weight, and that of the second dip 15 to 25 per cent by weight.  The tension applied during the first dip may be ,0015 to 0,005 grams per denier and the increased tension may be 0,015 grams per denier.  In examples rayon cords are dipped (a) firstly in an aqueous dispersion of natural rubber latex and secondly in an aqueous dispersion of resorcinol formaldehyde, sodium hydroxide and natural rubber latex, (b) firstly in an aqueous suspension of blood and secondly in an aqueous dispersion of resorcinol formaldehyde, sodium hydroxide, and natural rubber latex, or secondly in an aqueous dispersion of blood and latex, and (c) firstly in a dilute aqueous suspension of resorcinol-formaldehyde and sodium hydroxide and secondly in a suspension of resorcinol-formaldehyde, sodium hydroxide, and natural rubber latex.
Patent GB-125464-A (GB)
Title: An Improved Method of and Means for Effecting Boring, Excavating, Mining and similar Operations for Military Purposes.
Inventor: MIDFORD ALBERT GEORGE
IPC: F42B23/00
Filed: 1916-08-15
Abstract: 125,464. Midford, A. G. Aug. 15, 1916. Spigot-and-socket screwed joints.-Pipes d are connected to a chamber a by a bush e with internal and external threads of opposite direction to facilitate removal of the pipes without disconnexion of the pipe sections.
Patent GB-455233-A (GB)
Title: Improvements in or relating to photo-electrically active screens for cathode-ray tubes
IPC: H01J29/41
Filed: 1935-04-15
Abstract: 455,233. Making cathode-ray tubes. HOLMAN, H. E., 4, Fairway Avenue, Garden City, Yiewsley, Middlesex. April 15, 1935, No. 11622. [Class 83 (ii)] [See also Groups XL and XXXVI] A method of producing a mosaic screen for a cathode-ray tube, which consists of metal elements inserted in the interstices of a metal grid coated with insulation, includes the steps of preparing a negative matrix 10, Fig. 6, provided with ribs which correspond in position to the wires of the finished grid, coating the matrix with metal 12, removing the top parts of the coating by lapping to form separate elements of angular section, covering said elements with a positive matrix 13, removing the negative matrix 10 and using the positive matrix to mould the grid into secure engagement with the elements. A negative plate may be obtained by the electrotyping process from a ruled wax original and may be used to obtain a metal positive by means of which further negatives can be made. To form the screen, two negatives are required. The depths of the grooves in each negative may be 80 per cent and 10 per cent respectively of the diameter of the glass covered wire. A copper negative 10 which is provided with two series of comparatively high ribs at right angles to each other is gold-plated. A pair of similar negatives may be soldered together so that the backs are left unplated. The extent to which the top portions of the gold coating have been removed may be ascertained by immersing the plate in ferric chloride to blacken the exposed copper parts. The combined plates are then cleaned and coatings 13, 14 of nickel and copper are applied. The plates are separated, turned face to face, and soldered together at their edges. The copper negative plates 10 are then removed by electrolysis. The plates are separated and location holes are drilled in their edges with the aid of an optical device. The negative plate which is provided with shallow ribs is coated with a stripping solution and then with silver, which is peeled off to form a positive plate in which location holes are drilled in such manner that the projections and also the grooves on both the shallow and the deep plates are opposite one another. Glass covered tungsten wires 19a, 19b, Fig. 10, are placed in the grooves in such manner that the parallel wires in one plate are at right angles to those in the other plate. The plates are registered by pins in the location holes, clamped between steel plates with interposed asbestos packing and heated to fuse and also to reshape the glass coverings of the wires and to secure the gold cups 12a within the grid. The silver plate 18, and the copper and nickel plates 13, 14 are dissolved by means of nitric and sulphuric acids. The ends of the gold cups may be coated with rhodium, platinum, nickel or iron and then with silver which is adapted to hold the photo-electric surface. Specifications 442,666, [Group XL], 447,754, [Group XXXVI], and 447,824, [Group XL], are referred to.
Patent GB-377268-A (GB)
Title: Improvements in or relating to spring suspension for motor vehicles
IPC: B60G11/04
Filed: 1931-04-20
Abstract: 377,268. Road vehicle suspension; laminated springs. LJUNGSTRÍM, B., 83, Linnegatan,- Stockholm. April 20, 1931, No. 11714. Convention date, March 5. [Classes 108 (ii) and 108 (iii).] In a vehicle suspension system as shown in Figs. 2, 3; and 5, in which each wheel is mounted independently on the end of a lever 8, 9 pivoted in transverse bearings 10, 11, quarter-elliptic springs 16 clamped to the arms 14, 11 project forwardly or rearwardly into the channel or similar side frames 1. The ends of the side frames 1 may be made deeper, to accommodate the pivot bearings and the connections between the springs and the shafts. The longest leaf may roll into contact with the lower flange of the frame so as to vary the effective length of the spring, or a shaped bearing member may be interposed between the spring and the frame. Each of the leaves and the sides of the bracket 14 may be recessed as shown at 27, Fig. 8, to receive the securing bolts 19 and thus prevent movement of the leaves. A U-bolt 20, Fig. 5, encircling the leaves is also employed. In the modification shown in Fig. 4, a quarterelliptic spring 16 extends upwards into a channel-shaped extension of the side frames 1 over the wheels.
Patent GB-109796-A (GB)
Title: Improved Manufacture of Volatile Oils such as Petrol.
Inventor: DAMPIERRE MARIE AMEDEE HENRY D
IPC: C10G11/00
Filed: 1917-08-15
Abstract: 109,796. Dampierre, M. A. H. de. Sept. 6, 1916, [Convention date]. Mineral and tar oils. -Heavy oils, such as crude petroleum, lamp oil, naphtha, a n d petroleum residues, are converted into petrol and other volatile oils by distilling in a still a wherein hydrogen is injected into the oil by a pipe b, and then passing the resulting mixture of oil vapour and hydrogen over perforated nickel disks c<1>, t h e operation being effected under a pressure, e. g. 5-10 atmospheres, maintained by a valve d<0>. The products are led to a condenser. The perforated disks c<1> are held in position in a vertical pipe c by a central rod c<2>. The pipe c may also be lined with nickel. A cooling-system g surrounding the pipe c ensures the return of heavy oils to the still.
Patent GB-569926-A (GB)
Title: Improvements in and relating to electric cable terminals
IPC: H02G15/22
Filed: 1943-07-21
Abstract: 569,926. Couplings ; cable sleeves; non-metal resistances. BRITISH THOMSON-HOUSTON CO., Ltd. July 21, 1943, No. 11872. Convention date, July 28, 1942. [Classes 36, 37, and 38 (i)] A terminal for a gas-filled cable and having its interior in communication with the gas feed pipe, has a casing 18 of metal connected to the lead sheath 16 of the cable and carrying a flange 21 to support the insulator 19 within which a stress cone is built up around the insulation 29 of the cable end. The stress cone comprises wrapped-on insulation 30 over the tapered end of which a copper braid 32 is applied soldered at 34 to the cable shielding tape 13 and extended by a layer 33 of resistance material such as cloth impregnated with carbon-bearing resin, paper with a semi-conductive coating, or a plastic incorporating carbon. An insulating barrier 36 rests on the coned surface of the casing 18.
Patent GB-600915-A (GB)
Title: Improvements in or relating to apparatus for investigating surface layers of metals
IPC: G01N27/72
Filed: 1944-06-23
Abstract: 600,915. Magnetic tests. STANDARD TELEPHONES & CABLES, Ltd. June 23, 1944, No. 11957. Convention date, Sept. 30, 1943. Drawings to Specification. [Class 37] An arrangement for examining surface layers of pieces of metal comprises two coupled coils, to which different frequencies are separately applied, and means for obtaining cyclograms of the pieces under test by using each in turn as the core of one or both of the coupled coils. The apparatus used differs from that described in Specification 600,914 in that a fixed frequency main oscillator is used. Specification 600,913 also is referred to.
Patent GB-1106566-A (GB)
Title: An improved contact body or heat exchanger packing in a contact apparatus
IPC: B01J19/32
Filed: 1965-03-22
Abstract: 1,106,566. Contacting gases with liquids. C. G. MUNTERS. 22 March, 1965 [24 March, 1964], No. 11976/65. Heading B1R. [Also in Division F4] Contact apparatus such as a cooling tower for heat exchange between air and water includes a packing 12 or 14 comprising a stack of corrugated' sheets made of a plastics material such as polyvinyl chloride stacked so that the corrugations of adjacent sheets 28, 29 lie at an angle α, Fig. 1, relative to one another of between 40 and 80 degrees viewed in the direction of air flow through the packing. The inclination from the horizontal of the corrugations in each sheet may be the same for all the sheets (as shown in pack 14) or the corrugations 30 in alternate sheets may be more steeply inclined than in the remaining sheets (as shown in pack 12). The sheets are secured to one another by binding wires 25, netting or plastic straps, by glueing, or by a locally applied solvent for the plastics material. The sheets may be additionally formed with fine creases or wrinkles 36, Fig. 2, of triangular cross-section and from 0.5 to 3 m/m in depth. These serve to spread the water over the sheet surface and may extend transversely to the main corrugations (see also Fig. 3). Alternatively they may extend obliquely to the main corrugations (Fig. 4) in a manner which directs the water towards those edges of the sheet first contacted by the air stream. The main corrugations may be flat-sided (Fig. 5) and the fine creases or wrinkles are formed on these flat sides, the crests and troughs of the main corrugations being smooth. In a further form (Fig. 6) the sheets are undulate in two directions and additionally may be formed with the fine creases or wrinkles.
Patent GB-1396055-A (GB)
Title: Food serving equipment with a conveyor belt
IPC: B65G47/10
Filed: 1973-03-13
Abstract: 1396055 Dispensing meals F KUPPERSBUSCH & SOHNE A G 13 March 1973 [28 March 1972] 12131/73 Heading A4T Equipment for serving food comprises a conveyer belt 1 for trays 34, ... 40 equipped with food receptacles, a plurality of food serving trolleys 9, 17, 28 each having a plurality of containers 10, ... 15, 18, ... 26, 29, . . . 32 for menu components to be served and past which the conveyor belt runs, and first means for indicating the menu components to be served to a particular tray and second means for indicating the menu component to be served to a subsequent tray. The equipment is particularly suitable for hospitals and has a tray dispenser 2 and a dispenser 3 for dishes and sets of knives, forks and spoons. A punched card reader 4 with a discharge device, and a tray release 6 having a lever 8 operated by a magnet is positioned on the other side of the conveyer. The trolleys 9, 17, 28 are disposed downstream of the conveyer and each trolley has a server 16, 27, 33 who conveys menu components from the containers 10, .... 15, 18, ... 26, and 29, ... 32 to the trays in response to indicators, such as lamps, indicated in the drawing by triangles. The menus are served in groups so that the same menu is served on a number of following trays, which are separated by a spacing a, a change in menu being indicated by a larger spacing b between adjacent trays. The change of spacing is effected by the card reader 4 which operates a control device 42 connected to a store 43 and comparitor 44 to operate one or other of timers 45, 46 actuating the magnet 7; the timers may also control the tray dispenser 2. At trolley 9, the dark triangle, representing an illuminated indicator, indicates to the server that the menu component 10 is to be placed on the tray 37 which at trolley 28, the dark triangle indicates to the server that component 31 is to be placed on tray 38. At trolley 17, the dark triangle indicates to the server that component 24 is to be placed on tray 39 but the intermittently or weakly illuminated indicator, represented by the shaded triangle, indicates to the server 27 that when tray 38 arrives after the larger spacing b that the menu component 19 is to be placed on the tray. The operation of the reader 4 is controlled by elements 50, ... 53 responsive to the movement of the trays.
Patent GB-1150351-A (GB)
Title: Improvements in or relating to Cooling Tunnels
Inventor: MEAGHER GEORGE
Filed: 1965-03-17
Abstract: 1,150,351. Cooling confections. G. MEAGHER. 17 June, 1966 [17 March, 1965], No. 11220/65. Heading F4H. Cakes or biscuits on an endless conveyer 8 are cooled in a tunnel 5 by air from fans 13, which air is distributed over the whole conveyer area within the tunnel and comprises recirculated air or a mixture of recirculated and fresh air. The required distribution is effected by baffles (not shown) and by a perforated screen 30. The suction side of the fans communicates through a filter 16 with a fresh air inlet 17 and through lateral ducts (25), Figs. 2 and 3 (not shown), with a heated air collection chamber 21 located below the conveyer. The collection chamber is provided with an exhaust passage 24 which includes fans 23 and from which air may be diverted through an opening 29 for space heating purposes. The proportion of fresh and recirculated air present in the stream from the fans 13 is controlled by dampers 20 and 26 which are moved in unison by a controller which is responsive to tunnel temperature. The filter 16 is in the form of a fibrous mat wound between reels 18 and 19.
Patent GB-238307-A (GB)
Title: An improvement in the production of gear wheels
IPC: B23F5/14
Filed: 1924-05-19
Abstract: 238,307. Brown & Sons (Huddersfield), Ltd., D., and Brown, F. E. May 19,1924. Gear-cuttting ; tools. -Spur, helical or double helical gears are generated by means of a reciprocating rack cutter a having roughing teeth a<1> of gradually increasing size at the forward end and finishing teeth a<2> at the rear end, the blank being indexed between successive cuts and the teeth being completely generated without the necessity of giving depth feed to the cutter. Both ends of the cutter mav be provided with the roughing teeth, the finish ing teeth being centrally disposed so that the tangential cutter movement may be in either direction. The progressive rolling movements of the cutters and blank are superposed on the dividing movements by means of differential gearing, Fig. 2 showing an initial stage in the generation and Fig. 4 the final stage. In a modification the roughing teeth may be narrower than the finishing teeth as well as shorter and in a further modification Fig. 9. the teeth may be all of the same length but of gradually increasing width. The cutter may be made up in one piece or may be made by inserting the tooth sections in a holder.
Patent GB-228761-A (GB)
Title: An improved sheet or strip for use in making multiple copies
IPC: B41L1/32
Filed: 1924-05-19
Abstract: 228,761. Lamson Paragon Supply Co., Ltd., and Johnston, C. L. May 19, 1924. Multiple blocks for manifolding; books with tear-out portions.-A sheet or strip 5 formed of a number of separate superposed strips 4 is folded zig-zag to form a pad 3, the leaves 4 being secured together by an adhesive along part or the whole of one or both longitudinal edges 6, and scored or perforated adjacent to each fold 7. In use, the free end a of the upper set is raised and carbon sheets are placed between the pairs of leaves; the set can then be used in a typewriter, and torn off along the folds without leaving a stub. Specification 214,513 is referred to.
Patent GB-170875-A (GB)
Title: Sash fasteners
IPC: E05C3/00
Filed: 1920-05-04
Abstract: 170,875. Thomas, J. May 4, 1920. Sash and like fasteners, pivoted-arm type.-Two fasteners a of the pivoted-arm type are spaced apart vertically on a supporting bracket b secured to one sash, and are arranged to engage separately with the same catch on the other sash, according to whether the window is closed or partly open. The Provisional Specification describes a modification in which a single fastener at the top of the vertical bracket is arranged to hold the window in a partly-open position.
Patent GB-387308-A (GB)
Title: Improvements in or relating to alternating current electric motors
IPC: H02K27/04
Filed: 1931-04-27
Abstract: 387,308. Alternating-current commutator motors. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. April 27, 1931, No. 12355. Convention date, May 10, 1930. Void [Published under Sect. 91 of the Acts]. [Class 35.] In order to permit shunt operation of an alternating-current motor, the phase of the armature current is caused to approximate that of the field current by suitable disposition of the windings and without the use of chokes or condensers. The methods employed may be: (1) Armatures of slow speed motors have a larg number of turns. (2) Parts of the field winding are connected in parallel. (3) .The use of deep, narrow or almost closed armature slots. (4) The use of a distributed field winding instead of wound salient poles. A motor is referred to which can operate in shunt connection on 110 volts and in series connection on 220 volts.
Patent GB-761472-A (GB)
Title: Improvements in textile carding engines
Inventor: HOWORTH DANIEL
IPC: D01G15/82
Filed: 1954-04-29
Abstract: 761,472. Removing dust &c. from carding engines. HOWORTH & SON, Ltd., D. April 28, 1955 [April 29, 1954], No. 12397/54. Class 120 (3). In a carding machine having a suction clearer, pipes extend transversely of the machine beside the taker-in roller, both pipes being divided longitudinally into passageways opening at intervals along the length of the pipes and having baffles on the pipes to direct dust and fly to the suction openings therein. Each pipe B, B<SP>1</SP> contains dividing plates b in order to provide a substantially constant suction distribution throughout the length of each pipe. Both pipes B, B<SP>1</SP> are connected by conduits C, C<SP>1</SP> to a fan D that delivers the dust and the like into a bag d<SP>1</SP> in a case D<SP>1</SP>. A baffle a<SP>3</SP> is provided above calender rollers a to prevent the escape of dust and fly and further baffles b<SP>2</SP> are provided to project from the pipe B<SP>1</SP>. In a modification, the pipes B, B<SP>1</SP> may contain slots running the complete length of their intake faces with movable baffle plates arranged inside the pipes.
Patent GB-1012581-A (GB)
Title: Improvements in or relating to the coating of reinforcement bars, especially for cellular concrete
IPC: E04C5/01
Filed: 1964-03-24
Abstract: 1,012,581. Coatings; vacuum degassing apparatus. YTONG INTERNATIONAL A.B. March 24, 1964 [April 4, 1963], No. 12454/64 Headings B1M and B2B. In coating reinforcement bars especially for cellular concrete with a layer formed of a corrosion-protective medium consisting of a fine-grained material in suspension, the corrosion-protective medium before it is applied to the bars is treated in such a way that almost all the air enclosed is removed. The treatment may consist of spreading out the liquid on a surface and allowing it to run over at least one edge, under a vacuum such that the liquid boils. A suitable apparatus for the treatment of the liquid comprises inclined plates 11, an inlet 12 and an outlet 13; the pipe 14 is connected to a vacuum pump.
Patent GB-612340-A (GB)
Title: Improvements in or relating to self adjusting tappets
IPC: F01L1/25
Filed: 1946-04-25
Abstract: 612,340. Perforating. WEATHERHEAD CO. April 25, 1946, No. 12477. Convention date, May 2, 1945. [Class 83 (iv)] [Also in Groups XXIV and XXVII] A minute orifice 27 is formed in a wall 26 by driving an oversize opening 42 in the wall and plugging it with a cylinder 43 having an axially extended flat 44.
Patent GB-723417-A (GB)
Title: Improvements in or relating to the manufacture of isopropenyl acetate
Inventor: MAWER FRANK CLIFFORD
IPC: C07C69/145
Filed: 1951-05-29
Abstract: Isopropenyl acetate is obtained by reacting keten with acetone in the presence of a naphthalene disulphonic acid or a reaction product thereof with acetic anhydride as catalyst.  The invention also comprises as new catalysts for the specified reaction the reaction products of a naphthalene disulphonic acid and acetic anhydride. Specified naphthalene disulphonic acids are the 1 : 5-, 2 : 6- and 2 : 7-disulphonic acids.  The reaction products of a naphthalene disulphonic acid with acetic anhydride are of uncertain constitution but are believed to be mixed anhydrides. They may be obtained by allowing a mixture of the chosen disulphonic acid and acetic anhydride to react, but the reaction may be hastened by heating the reactants together, e.g. by using an excess of acetic anhydride and refluxing the mixture.  The excess acetic anhydride may either be distilled off or the reaction mixture may be used as such as the catalyst.  In examples: (1) a gas obtained by pyrolysis of acetone and containing about 30 mols. per cent of ketene and substantially free of acetone is bubbled through a solution of naphthalene 1,5-disulphonic acid in acetone in a reaction vessel in a bath maintained at 75 DEG  to 85 DEG  C.  Acetone is condensed from the off gases and returned to the reaction vessel, the contents of the vessel being fractionally distilled after a period of 14 hours to yield isopropenyl acetate; (2) naphthalene-1 : 5-disulphonic acid (containing 20 per cent water) is boiled under reflux with acetic anhydride in a bath maintained at 140 DEG  C.  The mixture is then distilled to 40 DEG  C. at 10 mm. pressure and the residue is used as catalyst for the production of isopropenyl acetate by passing keten through a mixture of the catalyst and acetone for 13.5 hours; (3) keten is passed through a mixture of naphthalene-2 : 6-disulphonic acid and acetone for 6.5 hours and the reaction mixture distilled to yield isopropenyl acetate.  When sulphuric acid or p-toluenesulphonic acid is used as catalyst under otherwise identical conditions the yield of isopropenyl acetate is reduced in each case; (4) as in (2), except that the catalyst used is the reaction product of acetic anhydride and naphthalene-2 : 6-disulphonic acid; (5) keten is passed through a mixture of naphthalene-2 : 7-disulphonic acid and acetone and the reaction mixture distilled after 5.5 hours to yield isopropenyl acetate. When m-nitrobenzenesulphonic acid is used as the catalyst under otherwise identical conditions the ester is obtained in reduced yield.