baber/WOPTO huggingface dataset:
Patent GB-286544-A (GB)
Title: Improvements in and relating to screens or riddles for use in the classification of coal, ores, minerals and the like
IPC: B07B1/42
Filed: 1927-07-22
Abstract: 286,544. Hunter, S. July 22. 1927. Reciprocating screens a, a<1> for coal, ores, &c. are suspended by members c formed of metal strands, preferably of flat cross-section. In the construction shown in Fig. 4, a central band of circular-sectioned wires p is wound round with -one or more outer layers of wires n, o. The wires may be of flat cross section as shown in Fig. 7. The ends l of the supporting members are expanded and clamped between bars h, k on the supporting frame and screen frame, the strands being spread apart and the spaces filled with white metal. The reciprocating mechanism comprises eccentrics e and connecting rods d.
Patent GB-879023-A (GB)
Title: Improvements in or relating to mixing machines
Inventor: BUTLER FRANK
IPC: B01F29/60
Filed: 1957-06-20
Abstract: 879,023. Fixing machines. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 13, 1958 [June 20, 1957], No. 19521/57. Class 86 [Also in Group XXIV] A mixing machine comprises a set of equi-spaced drums 4 mounted in a rotatable support 5 which is arranged to move the drums in a closed path from a charging point to a discharging point and back to the charging point, means being provided for rotating each drum about its longitudinal axis. In addition the support is given a stepped motion, each step being equal to the space between the drums and means are provided for causing the drums to tilt as they reach the discharge position. Six frusto-conical drums 4 are pivotally mounted in the support plate 5 and each has a driving shaft 11 keyed to a friction roller 12 engaging a wheel 6 mounted on a vertical shaft 7 driven through bevel gears 8, 9 and a gear box 56 by a motor 10. Each shaft 11 is surrounded by a casing 16 attached to a spring-loaded arm 17 carrying a wheel 18, which follows a cam track 19 as the plate 5 is rotated by a shaft 13 coaxial with shaft 7. Piston-operated ratchet mechanism 14 drives the shaft 13. The cam track 19 is so shaped that a drum 4 reaching the discharge shoot 20 tilts about its pivot 34 and empties itself. During the next step of the plate 5, the empty drum is righted and reaches the filling position beneath a shoot 15. A wetting agent may be introduced into the drums through a nozzle 95 mounted in the machine cover 3, which is provided with inspection windows 96. An air line 97 may be connected to the motor for purging purposes. The ratchet mechanism 14, Fig. 2, comprises two ratchet wheels 59, 60 keyed to the shaft 13 and an operating arm 65 carried on a flange 68 of the primary wheel 59. Associated pawls 70, 80 are pivotally mounted on a support 71, Fig. 1, and a pawl 73 is pivotally mounted on the arm 65, which has pin-and-slot connection with the piston rod 78 projecting from a cylinder 79. Also mounted on the arm 65 is a trip latch 82 pivoted on a pin 75. Each ratchet wheel has six equi-distant teeth formed by radial and inclined edges, the inclined edges 84b of wheel 59 being of opposite sense to the edges 86b of wheel 60. When compressed air is admitted to cylinder 79, the rod 78 moves the arm 65 in the direction 99 and pawl 73 comes against an edge 84a of wheel 59, while trip latch 82 lifts the pawl 80 to free wheel 60 and then rides over the pawl 80. Pawl 73 rotates the wheel 59, 60 until pawl 80 drops into the next tooth and stops the wheel by engagement with a radial edge 86a. Rod 78 is then at the end of its forward stroke. On the return stroke, pawl 73 rides on the wheel 59 to drop into the next tooth in readiness for the next step.
Patent GB-1094816-A (GB)
Title: Ferromagnetic solid solutions of rare earth chalcogenides
IPC: C01F17/241
Filed: 1965-05-10
Abstract: The magnetic properties of a semi-conducting rare earth chalcogenide are modified by forming a solid solution of the chalcogenide with a "metallic" rare earth chalcogenide.  The process raises the Curie temperature for compounds which are already ferromagnetic, e.g. EuO, EuS, EuSe, and induces ferromagnetism in others, e.g. EuTe.  In examples, the following solid solutions are formed:  EuO plus NdO, LaO, YO, CeO, and ScO; EuS plus YSe, and GdSe; EuSe plus LaS, LaSe, GdSe, TbSe, DySe, LuSe, HoSe, ErSe, TmSe, and ScSe; and EuTe plus GdTe.  The constituents are mixed in powder form, pelletized, heated (R.F.) in vacuo or in a dry inert atmosphere, e.g. He, to 2000-2500 DEG  C. and rapidly cooled.
Patent GB-504328-A (GB)
Title: Improvements in or relating to a process of hardening steel wires
IPC: C23C22/72
Filed: 1938-07-01
Abstract: 504,328. Hardening steel wires. 1. G. FARBENINDUSTRIE AKT.-GES. July 1, 1938, No. 19592. Convention date, Aug. 18, 1937. Addition to 489,800. [Class 72] Steel wires are hardened by quenching them from a soaking temperature in a fused saline bath of the composition described in the parent Specification and maintained at a temperature of 475-710‹ C. In an example, wires, in the form of lengths or coils, are heated to 1000‹ C. and quenched to about 500‹ C. in a fused bath consisting of 63 parts by weight of potassium dichromate and 37 parts of potassium monochromate.
Patent GB-348938-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B19/08
Filed: 1930-06-27
Abstract: 348,938. Oil engines. FIELDING, S. J., Atlas Works, Gloucester. June 27, 1930, No. 19603. [Class 7 (iii).] A dome - shaped combustion chamber G is located at one side of the detachable head of a compression ignition engine, a tangential restricted passage H communicating with the cylinder at one side of the flat base G<1> of the combustion chamber. A socket K for an injection valve is arranged so that the fuel is directed obliquely across the chamber towards the opening of the restricted passage H. The passage H lies in a plane situated between the planes containing inlet and exhaust valves F, which are situated on the side of the head opposite to that occupied by the combustion chamber. The valve stems are parallel to each other and, preferably, to the cylinder axis. Starting is facilitated by an igniter located in a socket L. According to one modification the stems of the valves F are inclined to the cylinder axis whilst in a further modified construction the passage H is arranged to produce whirling of the charge in a direction opposite to that of Fig. 4, relative to the positions of the injector and ignition device.
Patent GB-1048919-A (GB)
Title: Vinyl chloride copolymers and production thereof
IPC: C08F222/20
Filed: 1964-05-12
Abstract: A copolymer of vinyl chloride with a fumaric acid diester in which one of the esterifying groups is a hydroxy(oxa)hydrocarbyl group containing C, H and O only is claimed.  The fumarate may be of formula <FORM:1048919/C3/1> where R1 is an alkyl, cycloalkyl, aryl, aralkyl or alkaryl group and R2 is -(CH2-CHR-O)nH or -CH(CH3)-CH2OH where n is 1-8 and R is H or CH3, e.g. ethyl hydroxyethyl or butyl hydroxyethyl fumarate. The copolymer may be formed by polymerizing the monomers in bulk or in acetone using azobisisobutyronitrile or lauryl peroxide as catalyst and in the presence of a trialkylamine (to prevent fumarate mono-esters, e.g. monoethyl, which may be present in the monomers from polymerizing). Hydroquinone present in the fumarate monomer as polymerization inhibitor may be left in the monomer before copolymerization or removed by treatment with alumina. The copolymer may have a molecular weight of 1000-10,000 and contain 10-40% of the fumarate.  The copolymer may be cured, after shaping, by heating to 100-200 DEG  C.  The copolymer may contain a butylated melamine formaldehyde, urea formaldehyde or melamine formaldehyde resin prior to curing.  The copolymer may be dissolved in a mixture of methyl isobutyl ketone and toluene optionally with the above resins.ALSO:A substrate e.g. a steel panel, is coated with a solution of a copolymer in an aromatic solvent.  The copolymer is derived from vinyl chloride and a fumaric acid diester in which one of the esterifying groups is a hydroxy (oxa) by dricarbyl groups containing C, H and O only.
Patent GB-1367448-A (GB)
Title: Electrical machine
IPC: H02K9/20
Filed: 1973-04-25
Abstract: 1367448 Cooling electrical machines SIEMENS AG 25 April 1973 [25 April 1972] 19747/73 Heading H2A In an electrical machine, e.g. a motor, incorporating a fan 10 on its shaft 2, the fan and shaft together define an elongate central chamber which is surrounded by the machine rotor 3 and of which one end region 9 is defined by the fan hub 11, the chamber containing, in use of the machine, an evaporable liquid, e.g. water or alcohol, which is vaporized in the region 8 of the rotor by heat produced in the rotor and is then condensed in the chamber end region 9. The fan may be of Cu or A1 and either screwed at 12 to the shaft 2 or integral therewith, so as to act as a condenser and return the coolant in the form of a liquid film 7 to the region 8. The liquid is introduced via an inlet pipe 14, and the fan blades 15 impel the environmental air from an inlet aperture 20 and a protective grid 19 through an air hood 17 to ventilation ducts 23 of stator cooling ribs 24. The fan blade edges may be bevelled at 16 to reduce air build-up at hood angles 21, or in a modification, Fig. 3, are normal to the machine axis 6 but have between them guide plates (33).
Patent GB-382270-A (GB)
Title: Improvements in or relating to anchoring devices for furnace and other linings or surfaces made of plastic material
IPC: F27D1/14
Filed: 1931-07-09
Abstract: 382,270. Furnace linings. PLIBRICO JOINTLESS FIREBRICK CO., 1800, Kingsbury Street, Chicago, U.S.A. July 9, 1931, No. 19777. Convention date, Aug. 14, 1930. [Classes 51 (i) and 51 (ii).] A device for anchoring a furnace lining to a wall while allowing for relative movement due to expansion and contraction comprises a member 12 embedded in the lining, and loosely engaged with a hook member 6 secured in or to the wall, and a shield 20 for keeping the interengaging parts free from the plastic material forming the lining. A slot 16 of sufficient width freely to accommodate the arm 8 is formed in the member 12 by stamping out a lip 17. The shield 20 may be preformed to shape, or may consist of a flat plate, which is bent to shape by the pressure of the plastic material pounded upon it. The Specification as open to inspection under Sect. 91 (3) (a) describes the use of wet paper, asbestos or other fibrous material as a packing around the joint. This subject-matter does not appear in the Specification as accepted.
Patent GB-327071-A (GB)
Title: Improvements in holders for safety razor blades, and the like
IPC: B26B27/00
Filed: 1929-06-28
Abstract: 327,071. Bourne, H. R. M. June 28, 1929. Knives, pocket.-A holder for used safety razor blades which may be used as a carpenter's tool, or as a knife, for cutting linoleum &c., comprises two sections 2, 3 riveted together. Adjacent the rivet 4, a slot is arranged for the reception of a blade 10 preferably of the edgenotched type as shown, one of the notches being engaged by the rivet 4. The blade is positioned by a pivoted locking member 14, Fig. 3, of spring wire, the end 15 of which passes through the holder to engage the other blade-notch and is slightly inturned to give a snap locking effect. The greater part of the blade is housed in the holder and it may be further supported by the provision of an internal ledge on one or both of the members 2, 3. When seated, the blade may slant somewhat so as to throw out the front corner. When not in use, the blade edge is protected by a pivoted guard member 18 which may comprise a folded metal strip and is normally folded back into the holder. A modified locking member having two prongs to adapt the holder for use with perforated blades may be interchangeable with the member 14, which may be detachably secured by a screw 24. The holder may be wholly of metal, or it may have a wooden handle, or it may be wholly of wood, and for heavy work it is preferably made bulky.
Patent GB-1371888-A (GB)
Title: Electrolchemical electrode liquid junction structure and method for producing same
IPC: G01N27/30
Filed: 1973-04-27
Abstract: 1371888 Electro-chemical electrodes BECKMAN INSTRUMENTS Inc 27 April 1973 [4 May 1972] 20062/73 Heading G1N A liquid junction comprises a coating of porous ceramic or an admixture of glass and inert particles bonding a glass tube into an opening in a glass saltbridge tube. A combination glass-reference electrode 10<SP>1</SP> includes a glass salt-bridge tube 12<SP>1</SP> including a Ag/AgCl or calomel half cell 22 and electrolyte 14<SP>1</SP>, an opening 16<SP>1</SP> in the tube 12<SP>1</SP> being closed by a sensing electrode 40 comprising glass tube 24 closed by ion-sensitive glass bulb 42 and including a half cell 48. The liquid junction maybe formed by applying a coating 48 of ceramic or glass and inert particles (aluminium oxide, potassium silicate, silicon, carbide, zirconia) on to tube 24<SP>1</SP> or 12<SP>1</SP>, inserting tube 24<SP>1</SP> into opening 16<SP>1</SP> and heating both tubes in the region of the coating until the latter partially fuses to the glass tubes. Alternatively the coating may be applied to tube 24<SP>1</SP> and fused prior to the tube 24<SP>1</SP> being positioned in tube 12<SP>1</SP>. Heat is then applied to fuse the coating to the salt-bridge tube. A reference electrode, Fig. 1 (not shown), may be formed in a similar manner by sealing a non- conductive glass tube closed at one end into the salt-bridge tube by an annular liquid junction.
Patent GB-1078814-A (GB)
Title: Improvements in or relating to machines for stamping tablets of substances having a pasty consistency
IPC: B30B11/10
Filed: 1965-05-13
Abstract: 1,078,814. Tablet stamping. CONSTRUZIONI MECCANICHE G. MAZZONI S.p.A. May 13, 1965 [May 23, 1964; Oct. 19, 1964], No. 20155/65. Heading B5A. A device for stamping tablets of substances having a pasty consistency, e.g. soap, comprises two die halves (17), (18) reciprocated along a rectilinear path by crank arms, ejector pins (21), (22) in the die halves, a die box 26 provided with apertures (58), (59), (60), (61), intermittently rotatable to the supply, stamping and discharge positions, the die halves passing into the apertures at the stamping position and the scrap material falling into an interface in the die box from which it is removed. A number of modifications are described showing different forms of supply and discharge conveyers, i.e., relatively displaced sections of the die box (Fig. 4); die plates of different strokes (Fig. 5); vacuum and compressed air operated arms for suction removal and discharge; double apertured stations for forming two tablets simultaneously, (Fig. 7); scraping and cleaning members for the die apertures; die apertures of size greater than the formed tablets (Fig. 22); peripheral scrap outlets (Fig. 26); more than two pairs of die halves may be provided for. The finished tablet may be drawn through a trimming aperture (Fig. 18). The die box may be of metal or glass or cotton fibre reinforced plastics.
Patent GB-1248653-A (GB)
Title: Selector valve
IPC: B60H1/00
Filed: 1969-04-21
Abstract: 1,248,653. Valves. NSUMOTORENWERKE A.G. 21 April, 1969 [4 May, 1968], No. 20174/69. Heading F2V. Valve for hot water heating system of vehicle for selectively connecting a radiator port 23 with a heat exchanger port 8 or return port 5, consists of a housing with a cylindrical valve chamber having one of the ports (8) in an end wall of the chamber and surrounded by a seating. Port 6 is permanently open. Ports 5 and 8 have raised seating surfaces and are obturated by the valve member 3. This member is shaped generally as a sector of a cylinder with an extension 10 obturating the port 8. The member is biased on to seat 8 by a spring 11 from a bearing sleeve 12 retained by a spring ring 14. The member is supported rotationally solely by a spindle 15 extending through the bearing and having an operating handle 16.
Patent GB-414216-A (GB)
Title: Improvements in and relating to advertising or display apparatus for use by day and night
IPC: G09F13/26
Filed: 1933-07-17
Abstract: 414,216. Luminous signs. WOLFF, H., 194, Koningin Wilhelminalaan, Voorburg, Holland. July 17, 1933, No. 20187. Convention date, March 27. [Class 3 (ii).] A sign wherein a translucent letter or the like is arranged on a rear-illuminated plate so that as viewed from the front the central portion of the letter is illuminated with greatest intensity, the intensity decreasing towards the periphery of the letter, is characterised in that a translucent medium having a similar shape to the letter but of smaller dimensions is arranged in spaced relation to the letter between the source of light and the letter so that the edges of the letter overlap the edges of the translucent medium and a relief effect is given to the letter. As shown in Fig. 4, the sign comprises a glass plate 1 on which the letter is painted in the form of a coating 7 covered by a translucent and reflecting coating 8, and a plate 2 provided with a gold or silver coating 9 of the same shape as the letter. A portion 10 of the plate 2 lying symmetrically behind the letter is not covered with this coating but with a diffusing coating 12. The coating 9 and the remainder of the back of the plate 2 except the portion 10 are then covered with a coating 11 of black paint. In a modification, Fig. 5, a plate 13 is interposed between the plates 1, 2 and provided with a black coating 11 covered with a light green coating 14. A yellow coating 15 may also be provided on the plate 13. The translucency of the portion 10 may be uniform or decrease from the centre towards the edges by varying the thickness of either the coating 12 or the plate 2, the plate in the latter case being made of frosted or like diffusing glass. The coatings may be arranged in recesses in the plates. The sign may be mounted in a casing which is illuminated by a lamp and which may be provided with a mirror for reflecting sunlight on to the sign. The casing may also be provided with one or more reflecting surfaces by covering its inner wall with a coating of paint which may be mixed with splintered glass.
Patent GB-718281-A (GB)
Title: Improvements in or relating to framework structures such as scaffolding structures
Inventor: VIGNUZZI GUIDO
IPC: E04G7/02
Filed: 1951-08-28
Abstract: 718,281. Scaffolding structures. DALMINE SOC. PER AZIONI. Aug. 28, 1951, No. 20241/51. Class 20 (2). [Also in Group XXV] In a scaffolding structure struts D, Fig. 1, formed with flattened ends 10 are connected to an upright C by means of a sleeve comprising arcuate portions A, B, Fig. 2, formed with complementary radial wings 2, 6, the ends 10 of the struts D fitting between the wings and being secured thereto by a screw-bolt passing through registering holes 12 provided in the wings and ends 10. Additional bolt holes 14 are formed in the wings to securely clamp the arcuate portions A, B together.
Patent GB-1441709-A (GB)
Title: Oil recovery process
IPC: C09K8/584
Filed: 1974-05-08
Abstract: 1441709 Secondary recovery from wells TEXACO DEVELOPMENT CORP 8 May 1974 20271/74 Heading E1F Oil is recovered from a reservoir containing water having from 500 to 900 ppm of polyvalent ions dissolved therein by injecting, through an injection well, an aqueous solution of an anionic surfactant selected from water soluble salts of alkyl sulphonates or phosphates having from 5 to 25 carbon atoms, and water soluble salts of alkylaryl sulphonates or phosphates wherein the alkyl chains have from 5 to 25 carbon atoms; and a nonionic surfactant selected from polyethoxylated alkyl phenols or polyethoxylated aliphatic alcohols having from 5 to 20 carbon atoms in the alkyl groups and from 6 to 20 polyethoxy groups. The concentrations of the anionic and nonionic surfactants in the aqueous solution are from 0.05 to 5.0% by weight. The ratio of the anionic surfactant concentration to the nonionic surfactant concentration is from 1:10 to 10:1. The viscosity of the aqueous solution may be increased by known polymers.
Patent GB-419892-A (GB)
Title: Improvements in and relating to electrically heated apparatus
IPC: F24C7/08
Filed: 1933-07-19
Abstract: 419,892. Electric hot-plates. RHEINISCH-WESTFALISCHES ELEKTRIZITATSWERK AKT.-GES., 38, Mõrkischestrasse, Essen, Germany. July 19, 1933, No. 20424. Convention date, March 8. [Class 39 (iii).] In electrically-heated apparatus such as hot-plates, the heating resistance is connected to the mains in such a manner that a current flows in the element higher than the maximum current which can flow when the apparatus is connected to its nominal voltage, the resistance being automatically disconnected after a limited period of time before it is damaged. For example two elements a and b, provided with a series parallel switch c and normally connected between an outer conductor R and the neutral O of a polyphase system, may be connected by a switch e across the two outer conductors R and S to give an overload current in the element. The thermostat d opens switch e when the temperature of the apparatus reaches a certain limit. The switch e may be replaced by a switch f. When this switch makes the connections shown by the continuous lines both elements are connected in parallel between the two outers R and S. When the thermostat acts the connections shown by the dotted lines are made and the apparatus is thereby connected up in the manner determined by switch c which has already been set. The thermostat d may be connected to the hot plate, by a heat conducting connection as shown in Fig. 12. If only one voltage can be obtained from the mains a transformer i may be provided to give the overload voltage, disconnecting thermostats d<1> and d<2> being provided. The overload may also be obtained simply by the use of the highest step in series parallel regulation.
Patent GB-1387913-A (GB)
Title: Knitted blank for an article of clothing and a method of  forming the same
IPC: D04B1/24
Filed: 1972-05-02
Abstract: 1387913 Knitting NORTH AMERICAN ROCKWELL CORP 2 May 1972 [14 June 1971] 20427/72 Heading DIK Tights are knitted toe to toe by knitting continuously a first leg and hip portion, a waist band 27 and a second leg and hip portion, longitudinal openings 24, 29 with runstop bands 25, 26; 30, 31 at their ends being formed in the hip portions so that by drawing one leg through the opening in the opposite hip portion a pair of tights may be formed. The garment is shaped by varying the sizes of the stitches and the toes may be closed on the knitting machine. A similar garment knitted on a cylinder and dial machine has a turned welt for its waist.
Patent GB-407866-A (GB)
Title: Improvements in or relating to the process of producing soya flour
IPC: A23L11/30
Filed: 1933-07-20
Abstract: Shelled or unshelled soya beans are soaked for a few hours in a bath of slightly acidulated water at a temperature not exceeding 75 DEG C., washed several times and then placed in water at a temperature not exceeding 75 DEG  C. for about two hours.  The treated beans are dried, shelled if necessary, ground and heated in a roasting apparatus at a gradually rising temperature starting at 35 DEG  C. with periodical interruptions of the heat supply. Sulphuric, phosphoric, acetic, or hydrochloric acids may be used any excess of acid being neutralized; lime is preferably used as a neutralizing agent when phosphoric acid is employed.  The flour may be pressed to remove oil and fat prior to the final heating.