baber/WOPTO huggingface dataset:
Patent GB-799877-A (GB)
Title: Process for forming a resistor track for a potentiometer
IPC: H01C10/00
Filed: 1955-04-22
Abstract: 799,877. Variable resistances. CLAROSTAT MFG. CO., Inc. April 22, 1955 [May 6, 1954], No. 11667/55. Class 37. Figs. 1 and 2 show a moulded resistive track 10 of a potentiometer in which a U-shaped strip 11, 12 is inserted in the mould and anchored by the intrusion of the moulded material 10 through holes 13 so as to provide terminals 11 upon which tests may be made before the potentiometer assembly is completed. The body 10 is formed with recessed edge portions 15 which serve to key the body to the base portion of the potentiometer. It may also include a thickened part 16 which may be of a suitable configuration to provide the desired electrical characteristics. To define the ends of the resistor element the latter is split at 17 so as to provide a gap which also divides the lead assembly 11, 12 into two portions. Alternatively, the resistor element may be made as a solid ring by using separate leads and placing non-conductive material between such leads. After the testing operations have been completed suitable terminals or conductors 18, Fig. 7, and if desired a collector ring 31, Fig. 8, are inserted so as to form a base 20 for the assembly of the potentiometer. The whole is then moulded by the required heat and pressure being applied. The dielectric material forming base 20 will envelope the sides and lower surface of body 10 and key into the shoulder portions 15. It will also key into the openings 19 of the connector members (see Fig. 7), thus preventing any accidental axial or radial shifting. After the second moulding operation is complete the leads 11 and terminal 18 are soldered together and the base 20 is mounted upon a plate 24, Fig. 8, and a cover 25 is provided, a control shaft 27 being rotatable through a bushing 26, the shaft carries a rotor 28 having arms 29 and 30 engaging the resistor material 10 and the collector ring 31.
Patent GB-564877-A (GB)
Title: Improvements relating to feed mechanisms for punching presses
IPC: B26F1/02
Filed: 1943-07-22
Abstract: 564,877. Punching presses. BOOT ENGINEERING, Ltd., and BOOT, A. July 22, 1943, No. 11952. [Class 31 (ii)] [Also in Group XXII] A feeding mechanism for feeding sheets or strips of rubber, paper, metal past the tools of a punching press is constructed with an oscillating segmental pawl g which grips the material against friction pads as the pawl moves clockwise, the actuating mechanism for the pawl including a removable ball or roller 5 whose diameter determines the amount of angular movement given to the pawl. The ball 5 is led from a shoot 8 through a slot in a guide v in which moves a reciprocating plunger x actuated by a crank 3 on a shaft which is geared to a crank-shaft f for actuating the punch d. The ball 5 acts upon a striker u connected to a cranked arm t on the shaft k of the pawl g. The pawl g is carried by an oscillating arm m which raises it into and out of contact with the material, and the ball 5 transmits a feeding motion which is proportional to the size of the ball while the pawl engages the material. By employing a series of balls 5 of different sizes acting in sequence, a variable spacing is obtained. The pawl g is returned by a spring s to engage a stop r after the feeding operation.
Patent GB-542812-A (GB)
Title: Improvements in the manufacture of quaternary ammonium compounds
IPC: C07C279/28
Filed: 1940-07-23
Abstract: 542,812. Guanidine derivatives; wetting agents. GEIGY AKT.-GES., J. R. July 23, 1940, No. 12058; Convention date, May 8. [Classes 2 (iii) and 15 (ii)] Quaternary ammonium compounds useful as wetting agents or softening agents for textiles are prepared by treating an alkyl- or aralkylcyanoguanidine containing an aliphatic or cycloaliphatic acyl residue having 9-19 carbon atoms with an alkylating or aralkylating agent to the point of solubility in water. The starting materials may be prepared by acylating dicyandiamide with the appropriate carboxylic acid or derivative thereof and alkylating or aralkylating the product. According to the examples, (1) a methylated stearylcyanoguanidine, obtained by re-acting stearylcyanoguanidine in chlorobenzene with dimethyl sulphate in the presence of sodium carbonate, is heated with dimethyl sulphate or bromacetic acid ethyl ester until water-soluble ; (2) a methylated laurylcyanoguanidine, prepared as in (1) from laurylcyanoguanidine, is heated for some hours with benzyl chloride ; (3) an ethyllaurylcyanoguanidine, obtained by treating laurylcyanoguanidine with diethyl sulphate in presence of chlorobenzene and sodium carbonate, is heated with diethyl sulphate to give a water-soluble product.
Patent GB-611001-A (GB)
Title: Improvements in cloth raising machines
IPC: D06C11/00
Filed: 1946-04-18
Abstract: 611,001. Finishing fabrics. SIMPSON, P., and SIMPSON, A. P. April 18, 1946, No. 12061. [Class 42(i)] In a cloth-raising machine of the type having card rollers rotated about their own axes and carried by a cylinder which is revolved about its own axis, the card rollers are driven by a chain engaging a sprocket wheel on the axle of each card roller, the chain being driven by spring-loaded plungers upon a wheel coaxial with, but revolving in the opposite direction to, the cylinder. The card rollers c are journalled in parts b secured to a shaft a, the whole constituting the revolving cylinder. All the rollers c are provided with sprockets j which are engaged by a common chain i. A gear wheel f freely mounted on the axis a of the cylinder, is driven in the opposite direction to the latter by a pinion g. Arms h, projecting from the gear wheel f, carry spring-urged plungers which are connected to links of the chain i. The drives to the cylinder or gear-wheel f may incorporate a friction safety device.
Patent GB-931304-A (GB)
Title: Improvements in or relating to apparatus for pumping materials
IPC: G01F11/12
Filed: 1961-04-04
Abstract: 931,304. Rotary joints. H. N. K. PATON. April 4, 1961, No. 12072/61. Class 99(1). [Also in Group XXX] In apparatus for feeding granular material in which a flexible tube 95, Fig. 9, receiving the material at one end is squeezed between rollers moving progressively along the tube to form pockets of trapped material. Provision is made for progressively rotating or oscillating the tube 95 which is mounted at each end on rotary seals 98 intermittently rotated through ratchet gear 127 and worm wheel 120. In a modification the worm wheel may oscillate the rotary seal 98 through a crank and rack and pinion mechanism (not shown) so that pinching of longitudinal seams of the tube 95 between the rollers is avoided.
Patent GB-1311037-A (GB)
Title: Method of hydrostatic extrusion
IPC: B21C23/00
Filed: 1971-04-29
Abstract: 1311037 Extruding ALLMANNA SVENSKA ELEKTRISKA AB 29 April 1971 [30 April 1970] 12078/71 Heading B3P A hydrostatic extrusion press has a billet holder 15 slidable axially in the pressure chamber 2 and the holder has a relief valve 19 so that a part 16a of the pressure chamber bore can be pressurized intially while the other part 16b remains full of air so that the fluid is not heated and boiled for a long period by a hot billet 27 to be extruded. The bore part 16a is initially pressurized by a pump 37a through a duct 35 which has a relief valve 42 to keep the pressure below the opening pressure of the valve 19 in the holder. When the billet 27 and the die 9 have been fully engaged with the chamber 2 a slide valve 34 is actuated to connect the bore part 16a to a high pressure pump 38a. The higher pressure opens the valve 19 in the holder to pressurize the bore part 16b, and the pressuregenerating punch 5 is advanced to cause hydrostatic extrusion. After the extrusion the slide valve 52 is activated so that pressure fluid is sprayed into the bore part 16b to cool the extrusion fluid, the billet and the die. The chamber 2 is then retracted to allow the discard to be cut from the extruded product by a machine (60), Fig. 9 (not shown).
Patent GB-1384056-A (GB)
Title: Water-soluble reactive azo dyestuffs
IPC: C09B62/026
Filed: 1971-04-29
Abstract: 1384056 Water soluble reactive monoazo dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 25 April 1972 [29 April 1971] 12121/71 Addition to 1271226 Heading C4P  New water-soluble reactive dyes of formula wherein A represents the residue of a diazo component of the benzene or naphthalene series, Z represents a hydrogen atom or an optionally substituted alkyl, aralkyl, cycloalkyl, aryl or heterocyclic radical, T<SP>1</SP> represents a hydrogen atom, an optionally substituted alkyl, aralkyl, cycloalkyl, aryl or heterocyclic radical or a hydroxyl, cyano, -COR<SP>3</SP>, -COOR<SP>3</SP> or -CONR<SP>3</SP>R<SP>4</SP> group in which R<SP>3</SP> and R<SP>4</SP> each independently represents a hydrogen atom or an optionally substituted alkyl, aralkyl, cycloalkyl, aryl or heterocyclic radical or the group -NR<SP>3</SP>R<SP>4</SP> represents the radical of a 5 or 6 membered heterocyclic ring, T<SP>2</SP> represents a hydrogen atom, an optionally substituted alkyl, aralkyl, cycloalkyl, aryl or heterocyclic radical or a cyano, -COR<SP>3</SP>, -COOR<SP>3</SP> or -CONR<SP>3</SP>R<SP>4</SP> group in which R<SP>3</SP> and R<SP>4</SP> have the meanings already stated, X represents =N-, Y represents chlorine or bromine, Q<SP>1</SP> represents oxygen, sulphur or -NR-wherein R represents hydrogen or lower alkyl, Q<SP>2</SP> represents oxygen, sulphur or a direct link, R<SP>2</SP> represents an optionally substituted alkyl radical having from 2 to 18 carbon atoms or a cycloalkyl, aralkyl or aryl radical, R<SP>1</SP> is a divalent hydrocarbon radical such that R<SP>1</SP> and R<SP>2</SP> together contain at least 8 carbon atoms, n is at least 1, the dyes being free from NO 2  groups, are prepared by condensing a halo-pyrimidine or -triazine with an appropriate aminoazo dye and a hydroxy-, mercapto- or amino-compound. The dyes are used to colour cellulose, or preferably natural and synthetic polyamide, fibres by the usual reactive dyeing processes in yellow shades.
Patent GB-527929-A (GB)
Title: Improvements in spring seatings
IPC: A47C7/35
Filed: 1939-04-22
Abstract: 527,929. Spring upholstery. HOLLAND, P., and HOLLAND, H. April 22, 1939, No. 12138. [Class 52 (iv)] A spring seating comprises a plurality of wires 6 each coiled at intervals to form helices 7, 8, the non-coiled parts being crossed by non-coiled wires 10 or the non-coiled parts of wires similar to the wires 6, and coiled compression springs 2 mounted at the places where these wires cross by threading the bottom coils under and over the wires. The ends of the wires 6 are connected to brackets attached to the frame and the compression springs may support a wire mesh. Kinks are formed in the wires 6, 10 where they cross one another to prevent lateral movement of the compression springs.
Patent GB-527879-A (GB)
Title: Improvements in or relating to machines for moulding plastic material
IPC: B29C37/00
Filed: 1939-04-22
Abstract: 527,879. Rotary-table moulding-machines. PARFITT, A. W. (Lauterbach Corporation). April 22, 1939, No. 12149. [Class 87 (ii)] In a rotary moulding-machine comprising co-operating dies 22 and plungers 24 mounted in flanges 16, 15 of a rotary drum 14 so as to move through charging, forming and discharging positions, a brush 52 is arranged between the discharge and charging positions and projects between the flanges 15, 16 for cleaning the plungers 24, and compressed air is intermittently and synchronously blown from a pipe 54 into the dies 22 to dislodge material therefrom. The dies 22 are mounted on supports 18 carried by piston-rods 19 of hydraulic cylinders 20 mounted in a rotary table 21. The supports 18 are guided by rods 28 which strike a lever 62 as they move round and so operate a valve 60 controlling the supply of compressed air to the pipe 54. The plungers 24 may be adapted for forming screw-threaded bottle caps which are removed therefrom by a rotary disc 25 and fall down a shoot 30. Ejection of the articles is assisted bv compressed air from holes 42 in a pipe 38 which lies across the top of the shoot. The pipe 38 is also provided with upwardlydirected holes 44 for blowing air to clean the plungers 24 and the end 43 of the pipe projects downwardly to blow air into the dies 22. A suction head is mounted adjacent the shoot to collect dislodged material. The brush 52 is mounted in a resilient holder 50 adjustably clamped on an outer casing 12. The brush may project upwardly to engage the plungers and it may be fixed on the shoot 30.
Patent GB-619672-A (GB)
Title: Improvements in the manufacture of tubes and/or nests of tubes for thermic exchange
IPC: B21D53/02
Filed: 1945-05-15
Abstract: 619,672. Making ribbed tubes for heatexchangers. SOC. ANON DES USINES CHAUSSON. May 15, 1945, No. 12198. Convention date, Aug. 10, 1944. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 15, 1945.] [Classes 83 (ii) and 83 (iv)] [Also in Group XIII] Forging-dies; rolling tubes; welding &c.- Tubes for heat-exchange apparatus are formed by pressing integral fins or on strips joined at each edge to form the tube or on a strip bent about the centre line and joined at one edge to form a tube. A single strip 26, Fig. 1, or a double strip, Fig. 7, is positioned in a die, Fig. 4, with fixed members 31, 32, 33 which confine the strip 26 and on descent of a die-head with fixed members 37, 38, 35, movable members 36 extrude the strip to form integral fins 29. The edges may be joined by forge-welding between tools 54, 55. The strip may be heated to 350-500‹ C. and pressed by a cold tool or heated to 350-450‹ C. and pressed by a tool heated to 150-500‹ C. or cold work-pieces may be pressed by tools heated to 350-500‹ C. The extrusion may be effected at a pressure of 1500-2500 kg. per sq. cm. The fins may be arranged at an angle to the tube axis and may be of unequal length and spacing. The strip 105 may be formed with fins on opposite faces arranged at right angles, Fig. 16, and may be assembled to form nests of tubes with internal cross-passages. The finned tube may be bent to circular form for use with air blowers.
Patent GB-945054-A (GB)
Title: Improvements in or relating to photo-cells and photo-sensitive bodies therefor
IPC: H01L31/08
Filed: 1960-04-06
Abstract: 945,054. Photo-electric devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 6, 1960 [April 9, 1959], No. 12227/60. Heading H1K. A photo-sensitive powder is moulded, sintered and subdivided by sawing or grinding into two or more parts which provide the sensitive elements for a corresponding number of photo-cells. Semi-conductor body, materials and treatment.-A powder made from, for example, sulphides, selenides or tellurides of cadmium, zinc, lead or mercury may be used but in the preferred example, a cadmium sulphide powder which has previously been activated by mixing with a small quantity of copper and gallium and heating in an atmosphere of H 2 S is moulded into a thin strip and sintered with a number of similar strips in a nitrogen atmosphere in a quartz tube. Alternative activators are silver and the halogens and activation may take place after moulding and may be combined with the sintering operation. Electrodes, materials and application.-On the moulded strip, bands 1, Fig. 1, of gold, silver, cadmium &c. separated by 0.25 mm. are deposited from vapour. Subdividing sensitive material and completing photo-cells.-The sensitive strip is coated with wax 5 and supported with the electrode face uppermost, the supports being subsequently moved so that the coated strip engages saw blades 7 in a bath of oil and silicon carbide. By this operation the strip is divided into three parts by cuts parallel with the electrode strips and similar apparatus is then used for making a large number of cuts transverse to the electrode strips. One of the resulting small pieces is mounted, by means of nickel plates 18, on stay wires 16 in a glass envelope. A mass 17, e.g. of silver paste, of high thermal conductivity is provided over the electrodes proper 14. Figures are given of size and performance and minor variations in construction are referred to.
Patent GB-1298594-A (GB)
Title: Building elements and manufacture thereof
Inventor: LICHIUS ALBERT
IPC: E04B1/84
Filed: 1970-03-13
Abstract: 1298594 Building elements; apparatus for manufacture A LICHIUS and H G SCHULTZE 13 March 1970 [13 March 1969] 12235/70 Heading E1B A building element comprising spaced boards 1 and 2 interconnected by wires 7 supported in spaced relationship on U-section wire members 18 and having bent-over ends 10' is manufactured on apparatus comprising a pair of spaced side walls 4, 5 movable towards each other and having rollers 3 supporting the boards 1, 2, a series of clamping and centring stands 20 therebetween carrying guides 21 for the wires 7, opposed pairs of displaceable wire guides 11 to move together and bend over the ends of wires 7 pushed through the boards, and punches displaceable between the side-walls of the wire guides to punch the bent over end portions of the wires back into the boards. The wire guides 11 are in two parts held together by leaf springs and movement of the punches forces them apart. The boards 1, 2 may be of wood fibre, foamed plastics, plaster, wood chips, laminated plastics or the like. The wires 18 act as stops for the inward movement of the building boards and project slightly above the boards to assist in centring adjacent boards.
Patent GB-493608-A (GB)
Title: Heat storage and heat exchange structures
IPC: C21B9/06
Filed: 1938-04-25
Abstract: 493,608. Heat -exchange apparatus. SCHWARZE, P. April 25, 1938, No. 12281. Convention date, May 8, 1937. [Class 51 (i)] A refractory filling for heat-exchangers for heating air and the like comprises bricks with one or more passages so inclined to the end surfaces that, when the bricks are assembled in superposed angular relation, the passages combine to form continuous helical channels. Figs. 1 and 2 show one form and arrangement of rectangular bricks having inclined channels 1 and projections and recesses 2, 3 on their ends. Adjacent bricks are turned through 90‹ to form the helical passage. Figs. 3 and 4 show hexagonal bricks with inclined passages 1 which form helical passages when the adjacent bricks are turned through 60 and 120‹ respectively. The size and inclination of the passages in the bricks are such that when the bricks are superposed a rectilinear axial passage is formed through the bricks. The bricks may be arranged in zones with bricks in the various zones having passages of different inclination. The sides of the bricks may be inclined to the ends and parallel with the passages.
Patent GB-215192-A (GB)
Title: Improvements in or relating to screw and like propellers
IPC: B63H1/26
Filed: 1923-05-08
Abstract: 215,192. Aldwinckle, J. A. May 8, 1923. Screw propellers.- Blades 1 for screw propellers are made of cylindrical or other looped form and set at an angle on the boss 2. The cross-section may be circular or oval and the interior surface of the tubes may be tapered, conical, or spiral. A projecting rib may be placed at the outer edge of each blade.
Patent GB-844666-A (GB)
Title: Improvements in and relating to joints between telescopic members
Inventor: GODDARD CECIL JOHN
IPC: F16L27/12
Filed: 1958-04-18
Abstract: 844,666. Telescopic joints. GODDARD & CO. Ltd., F. April 20, 1959 [April 18, 1958], No. 12372/58. Class 99(1). In a joint for adjustably holding an inner member 6 of solid or hollow circular section in an outer member 5 of hollow circular section, the latter member has an externally screwed end on which is engaged a nut 7 formed with a sleeve-like extension 8 provided with a coned inner surface 9, the larger end of the cone having a diameter greater than that of the screwed bore of the nut, and the smaller end a diameter slightly greater than the external diameter of the member 6 ; extending from the larger end of the cone to the bore of the nut is an inwardly projecting step 10. A part-circular wire 12 or strip of metal, plastic, fibre or other material is located in the extension 8 has a normal internal-diameter less than the external diameter of the member 5 and greater than the exterior diameter of the member 6. By screwing up the nut, the end 13 of the member 5 abuts the wire 12 which is contracted radially by the surface 9 and to grip the member 6.
Patent GB-394120-A (GB)
Title: Method of treating plants in order to obtain therefrom textile fibres
IPC: D01C1/02
Filed: 1932-04-30
Abstract: 394,120. Obtaining fibres. NORZI, E., 18, Via Botero, Turin, Italy. April 30, 1932, No. 12431. Convention date, May 1, 1931. [Class 120 (i).] In a process for extracting textile fibres from plants by treatment in a heated alkaline bath, the bath consists of a dilute solution of caustic alkali (between 3 per cent and 5 per cent) with which small quantities (up to 1À5 parts per thousand) of one or more amino acids are mixed, the amino acids, or the substances producing them being added to the solution prior to the introduction of the plants. In an example of the treatment applied to Spanish broom (Spartium junceum) a solution of 5 per cent caustic soda with about 1 part per thousand of glue is prepared and brought to the boiling point, and the broom is kept in the boiling solution for 45 to 60 minutes. The bark of the stem is then disaggregated by simple washing or by the action of a jet of fluid. The caustic soda may be replaced by an equivalent alkali, and the amino acids may be produced in the bath by adding glue or gelatine from meat offal, or the amino acids may be directly added to the caustic alkali solution.
Patent GB-852996-A (GB)
Title: Improvements connected with monorail systems
Inventor: RUSTON LEONARD EDGAR
IPC: B61B13/04
Filed: 1958-04-19
Abstract: 852,996. Track apparatus for stopping trains. ROAD MACHINES (DRAYTON) Ltd. April 17, 1959 [April 19, 1958], No. 12480/58. Class 105. Track apparatus for operating the brake mechanism of a monorail vehicle of the type described in Specification 724,560 comprising, mounted on the plate c attached to the monorail a, a<SP>1</SP>, a2, a pivoted arm b which is held by the action of a spring b<SP>3</SP> in contact with the fixed abutment e. The dependent shoe d of the vehicle's brake mechanism is raised to actuate the brakes when the vehicle moves over the apparatus in one direction (left to right) but when moving in the opposite direction the pivoted arm is deflected by the shoe without raising the latter and applying the brakes. Specifications 845,737 and 845,738 also are referred to.