baber/WOPTO huggingface dataset:
Patent GB-349632-A (GB)
Title: Improvement in manufacture of sugar
IPC: C13B20/06
Filed: 1929-12-04
Abstract: 349,632. Purifying sugar juices. DORR CO., 247, Park Avenue, New York, U.S.A. Dec. 4, 1929, No. 37148. Convention date, Dec. 4, 1928. [Class 127.] Sugar juices are purified by treating them with an alkali such as lime and a substance reacting with lime such as carbon dioxide at such a time and rate that the solution of lime in the juice does not reach the saturation point, whereby the reactions are controlled to encourage crystal growth of the calcium compounds in the reaction zone preparatory to clarification. The raw juice may be first mixed with partially carbonated juice and the juice may be repeatedly circulated at least in part through the carbonating zone. The juice flows from a tank 4 through a constant level tank 6 to a treatment tank 1. The lime flows from a tank 10 through a constant level tank 13 to the treatment tanks 2 and 3 which are connected with the tank 1 by a recirculating pipe line 34 and pump 36. Carbon dioxide is fed through the main gas line 37 simultaneously with lime to the tanks 2 and 3. A portion of the carbonated juice is conducted from the bottom of tank 2 to a settling tank 28 while the remainder is pumped into tank 1, the process being made continuous. Specification 270,757, [Class 127, Sugar], is referred to.
Patent GB-940065-A (GB)
Title: A construction kit for use in teaching mathematics
IPC: G09B23/04
Filed: 1959-11-03
Abstract: 940,065. Educational appliances. E. J. C. LEPOUDRE. Nov. 3, 1959 [Nov. 7, 1958], No. 37188/59. Heading G5G. Apparatus facilitating the teaching of geometry and the construction of graphs and diagrams comprises a supporting board having a rectangular array of apertures therein, first junction elements capable of being inserted in any aperture in the board, second junction elements adapted to slide freely over the surface of the board, and linear connecting elements, whereby various plane geometrical figures may be produced at will with the board as background. Each first junction element comprises a cylindrical peg 4 having a flat head 5 and a diametrical base 6 just below the head and each second junction element comprises a cylindrical body portion 7 having a fixed head 8, a removable head 9, and a diametrical bore 11. The linear elements comprise steel rods 14 adapted to slide in the bores 6, 11 and some of the elements have eyelets at one or both ends, whereby they may be rotatably mounted on the cylindrical body portions of the first or second junction elements. Auxiliary elements for connecting junction elements comprise interfitting cylindrical boxes 19, 19<SP>1</SP>, each open at one end and having an aperture in the end opposite said opening to accommodate the cylindrical body part of a junction element, and having aligned apertures in the cylindrical wall adapted to receive a rod 14. Thus three rods may meet at a point as shown in Fig. 21. Additional members comprise transparent members of polystyrene having circular, elliptical, hyperbolic, or parabolic outlines, circular protractors, and arrow shaped members having scales marked thereon for measuring trigonometrical ratios. The flat heads of the junction elements may bear identification marks e.g. capital letters, and additional marking elements comprising a flat disc having a central rod extending from one side which is bent at right angles, may be connected to one end of a rod 14 by a plastic sleeve. The supporting board, which has co-ordinate axes marked on its front face, has a surrounding frame and is provided with means for standing it upright or for hanging it on a wall.
Patent GB-523026-A (GB)
Title: Improvements in advertising or display devices
IPC: G09F11/34
Filed: 1938-12-22
Abstract: 523,026. Displaying. SIK, G. Dec. 22, 1938, No. 37310. [Class 3 (i)] [Also in Group XXXV] A platform for displaying articles is rotated by frictional contact with the end of an electromagnetically vibrated armature 14, 15, 16. The magnet 12, energized by interrupted direct or by alternating current, is arranged with its core parallel to the magnetic plate 15, the polepieces 25, 26 extending laterally of the magnet to lie one with its tip just short of the plate 15 and the other with a bent-over portion parallel to the plate 15. The turned-up tip 16a of the springy portion 16 bears against a rubber tube 17 carried by a metal ring and rubber washers on the inside of a skirt depending from the display platform. The whole armature is so weighted, by washers 37, and adjusted, by swingably mounting the magnet and armature assembly, that for a given current frequency the phase of the tip 16a is opposite in sense to that of the outer end of the plate 15, a node or quasi-node being formed in the spring strip 16. Swingably adjusted locking - plates 32 engaging a groove in the vertical spindle of the platform hold the latter in position. In a modification the springs 14, 16 are integral and the magnet is disposed with its core at right-angles to the plate 15. Instead of a rotating platform, the device actuated may be a disc or band bearing advertisements, or the like.
Patent GB-890157-A (GB)
Title: Improvements in or relating to heat exchangers particularly for dairy farm apparatus
Inventor: DAWSON IDA VIOLET
IPC: A01J9/04
Filed: 1958-11-21
Abstract: 890,157. Film-type heat exchangers for cooling or heating milk &c. VENTREX ROOFING Ltd. Feb. 22, 1960 [Nov. 21, 1958], No. 37600/58. Addition to 743,772. Class 64(3) The heat exchanger of the parent Specification is modified by the provision of a plurality of separate parallel liquid flow paths therethrough so that liquid from several sources may be simultaneously heated or cooled. The milk cooler shown is generally similar to that shown in Fig. 7 of the parent Specification in that it comprises a closed casing 11 containing a helical cooling tube 10 over which milk flows by way of perforations in the bottom of a distributing tray 17 mounted above the coil. In the present construction the tray has two rows of perforations to obtain a flow of milk down both the inner and outer surfaces of the coil. In addition the tray is partitioned into three or four compartments and the lid 12 has a corresponding number of inlet connections one to each compartment so that streams of milk from separate sources such as for example from three or four cows, may be simultaneously heated or cooled. Upright guide plates 26 aligned with the partitions in the tray, project from both the inner and outer surfaces of the tube coil and serve to prevent mixing of the milk delivered from the individual sections of the tray. The bottom of the tray is similarly divided by partitions 29 into sections each with its own outlet connection 30
Patent GB-914099-A (GB)
Title: Improvements in and relating to pistons for internal combustion engines
IPC: F02F3/00
Filed: 1959-11-09
Abstract: 914,099. Pistons. LIST, H. Nov. 9, 1959 [Nov. 10, 1958], No. 37862/59. Class 122 (1). The gudgeon-pin bores 2 in a piston for an internal-combustion engine are provided with circumferential grooves 3 which are spaced apart a distance axially of the bores less than 5 millimetres and so arranged that the area of the bearing surfaces is approximately 2 to 5 times the area lost because of the presence of the grooves. The grooves, which may have a depth of between 0.2 and 1 millimetre, may be of helical form and, if desired, provided in bushes inserted in the bores. The grooves may be fed with oil or filled with a permanent lubricant such as graphite, ferrous oxide or molybdenum sulphide.
Patent GB-813556-A (GB)
Title: The propulsion of bodies such as projectiles reciprocating members and the like
IPC: F41B6/00
Filed: 1956-12-12
Abstract: 813,556. Reciprocating electric motor; linear motors. RHOKANA CORPORATION Ltd. Dec. 12, 1956 [Dec. 12, 1955]. No. 37926/56. Class 35. The motion of an armature is controlled e.g. for tuyere punching, linear displacement, reciprocatory pumping, or throwing projectiles, by energizing coils 11, 12 in a core having poles 14, 15, 16, in suitable sequence. The armature plunger 18 is provided with a tapered section at one or each end by using non-magnetic conical inserts 48. Pulse switching from one solenoid to the next may be achieved by gridcontrolled mercury-arc tubes controlled by an electric sequence timer to produce a progressive movement or, by means of suitable feedback detection, a determined position, of the armature. The length 38 of the armature is between 1.5D + K and 2D + K, where D is the distance between the poles and K is a constant. A circuit for tuyere punching is shown in Fig. 4 in which the incoming three-phase supply is converted into timed D.C. pulses for coils 11, 12 at lines 50, 51 with a common return 52, by means of two sets of three-phase connected mercury-arc rectifiers in a power unit 72. The power unit is controlled by synchronized triggering pulses from a generator 73 which provides triple frequency incipient triggering impulses generated by a unistable trigger circuit fed with the ripple voltage produced by star-connected three-phase rectifiers. The generated pulses are amplified by triodes which are so biased that they will not conduct the incipient trigger pulses unless a further bias is provided by gating pulses from a timing circuit 74 comprising a conventional trigger ring in which one of the stages is interrupted by a controlling switch controlled by a distribution control circuit 75. This circuit is controlled by manual or automatic devices 76, 77 depending on outside conditions, and serves to switch the supply of pulses from one set of punches to another with suitable delay periods by means of contactors 78. It is described how the switching may be initiated by the back e.m.f. developed in coils 11, 12 fed into the control circuit. Fig. 10 shows the application of the invention to the linear positioning of a plunger 37 by the selective energization of coils 200-203 through mercury discharge tubes 204-207. A series-connected brake 214 locks the plunger in the de-energized conditions. Each tube discharges through a current transformer 210 feeding a delay device 211 by means of which a triggering impulse is provided at the correct time for the next power impulse from a trigger device 208. Ganged switches 212 serve to feed the delayed trigger impulse to the next tube to the left or right depending on which direction motion is required. A similar principle is used in a device for throwing projectiles, the tubes each triggering the next in succession. The armature may be caused to reciprocate and carry valves to act as a pump.
Patent GB-1434627-A (GB)
Title: Determination of gross thrust-related parameters
IPC: G01L23/00
Filed: 1973-08-10
Abstract: 1434627 Measuring jet engine thrust CONTROL DATA CANADA Ltd 10 Aug 1973 [31 Aug 1972] 37934/73 Heading G1N A jet engine gross thrust meter is as described in Specification 1384931 Division G1 but includes in the computer main program memory 21 a block 35 which solves the equation PSNC = PSN - P S6.#  where PSNC is nozzle entry corrected static  pressure, P SN  is measured nozzle entry static pressure, P S6  is measured flameholder static pressure and # is a constant. Alternatively the nozzle total pressure PTN may be corrected or either of P S6  (static pressure in flameholder) or PT s (diffuser total pressure). The computed corrected values are substituted in the equation from which aerodynamic gross thrust FG is derived whereby this thrust may be determined more accurately in flight.
Patent GB-380777-A (GB)
IPC: G06C23/06
Abstract: 380,777. Controllers. BURROUGHS ADDING MACHINE CO., 2nd Avenue', Detroit, Michigan, U.S.A.-(Assignees of Horton, A. A. ; Plymouth, Michigan, U.S.A.) March 10, 1931, No. 7400. Convention date, March 19, 1930. [Class 38 (iii).] A motor-driven machine, such as a calculating machine, has a device, responsive to the resistance of the machine against operation or to the driving force applied to the machine, for disabling the motor when the said resistance or force exceeds a predetermined value and for causing the motor to continue its normal driving function when the resistance or force returns to its normal value. The device also acts in such a way that, if the motor outruns the machine, the motor is disabled until the machine has overtaken it. A sector 96 secured to a shaft 91 is rocked clockwise by the motor during the first part of a driving cycle. A bar 100 is secured to the sector and against this bears a torsion spring 102 the other end of which contacts with a pin 103 attached to a cam 104 freely pivoted on the shaft 91 and forming the main operating means of the machine. A plate 111 is connected to the cam 104 by a bar 105 and to a dashpot by a link 110. A yoke 116 is pivoted on a pin 115 fixed on the sector 96 and has at one end an arm 117 contacting with a pin 120 on the cam 104 and at its other end a pin 122 bearing against a lever 124 connected bv a lever 130 to the motor switch 22. If the force between the sector 96 and the cam 104 exceeds a predetermined value, the spring 102 allows the sector to advance relative to the cam, the pin 120 then acting on the arm 117 and causing the pin 122 to rock the lever 124 and to open temporarily the motor switch 22. The switch is again closed when the cam 104 overtakes the sector 96.
Patent GB-362688-A (GB)
Title: Improvements in or relating to railway joints
IPC: E01B11/56
Filed: 1930-12-18
Abstract: 362,688. Railway joints. LOCHE, M., LOCHE, R., and LOCHE, M., 233, Rue du Moulin, Fontenay-sous-Bois, Seine, France. Dec. 18, 1930, No. 38240. [Class 104 (ii).] A rail joint comprises a pair of fishplates each consisting of a buttress member 1 engaging the rail head, horizontal lugs 11 secured to the tops of a pair of sleepers, and. a skirt 5 extending between the sleepers and. connected by bolts 7. A strut 6 keeps the skirts in position.
Patent GB-1483222-A (GB)
Title: Treatment of virus suspensions
IPC: A61K39/145
Filed: 1974-09-03
Abstract: 1483222 Viral complex; vaccines LABORATOIRE ROGER BELLON 3 Sept 1974 [4 Sept 1973] 38383/74 Heading A5B [Also in Divisions C3 an C6] A viral complex composed of viral particles -bivalent cations-ethylene oxide polymer, which may be used for the concentration and purification of viruses and in the production of vaccines, is prepared by admixing with a suspension of viral particles, virulent or attenuated, an ethylene oxide polymer and a bivalent metal cation which together form an insoluble complex on to which the viral particles are absorbed. The bivalent metal cation, preferably calcium (or magnesium), may be contained in the polymer used. Additional amounts of the cation may, however, be introduced into the suspension e.g. as CaCl 2 . Preferably, the ethylene oxide polymers are of M.W. 100000- 300000 and they are used in proporitions ranging from 2 to 4% weight/volume of suspension. The method of concentrating and purifying viral suspensions involves dissolving the viral complex in the required quantity of a solution containing a chelating agent for the bivalent metal cation to obtain a viral suspension having a higher concentration of viral particles than that from which the insoluble viral complex was produced and separating off any insoluble material. By repeating the steps in say, three cycles, viral subparticles and antigens may be eliminated and purified viral suspensions concentrated by the order of 1500 with respect to the original suspension may be obtained, Allergising substances may be precipitated out by treating the suspension with chloroform. The chelating agent may be EDTA or citric acid (or salts thereof). The method of preparing a vaccine may involve suspending the viral complex in the minimum quantity of a buffer solution at pH 7.6 containing bivalent metal cations to produce a paste, suspending the paste in a physiological buffer solution and preparing a vaccine from the suspension thus obtained by conventional procedures. The examples are directed to the concentrating and purifying of aphthous fever, influenza, Newcastle disease, rabies and poliomyelitis viruses of specified type (or origin) and mode of cultivation. In the procedure of Examples 13, 17 and 19 a purified and concentrated suspension of aphthous fever or rabies virus is compounded with alumina and saponin. The viral preparation may be attenuated by the addition of glycidaldehyde or: formaldehyde. Example 20 discloses a mixed antiaphthous fever/anti-rabies vaccine.
Patent GB-1015933-A (GB)
Title: Insecticidal compositions
IPC: A01N25/26
Filed: 1962-10-10
Abstract: An insecticidal composition comprises a granular low-sorptive carrier material having coated upon the surface of the particles a synthetic thermoplastic resin or a thermoplastic cellulose derivative and an insecticidal phosphate ester having the formula:- <FORM:1015933/A5-A6/1> wherein each R represents a substituted or unsubstituted hydrocarbon group, with the proviso that the groups R may be bound to each other forming adivalent hydrocarbon group, and M represents a group of formula:-  <FORM:1015933/A5-A6/2> or <FORM:1015933/A5-A6/3> wherein each R1 represents H, Cl, Br or a substituted or unsubstituted hydrocarbon group, with the proviso that the groups R1 may be bound to each other so forming a divalent hydrocarbon group, R11 represents Cl, Br or a substituted or unsubstituted hydrocarbon group or a carbo aliphaticoxy e.g. an alkoxy alkyleneoxy carbonyl or carbalkoxy group, an R-O group an acyloxy alkoxy carbonyl group wherein the acyl group has the formula <FORM:1015933/A5-A6/4> or a group <FORM:1015933/A5-A6/5> where m and n are 0-2 and m+n=Z. and Z represents Cl or Br.  The hydrocarbon groups referred to may be alkyl, cyclo alkyl, aryl or aralkyl groups and may be substituted by Cl, Br, NO2, <FORM:1015933/A5-A6/6> -OR or p-chlorophenyl sulphoxyl groups.  Numerous polyolefinic cornpounds. Cellulose esters and cellulose ethers are specified for coating the granules.  Specified granular carriers are sand, sulphur, pyrophyllite, dolomite, gypsum, talc, pumice, kaolinite, clay, crushed granite, crushed walnut shells, and sugar.  The insecticide may be present in the resin or on the surface thereof. The resin may contain a plasticizer therefore e.g. alrialkyl and/or aryl phosphate ester; phthalate esters, sebacates ad, pates, hydrogenated polyphenyls, alkylated aromatic hydrocarbons, and polyesters of hexanediol and sebacic or adipic acid of M. Wt of the order of 2,000. The compositions may contain dyes, pigments, lubricants, fillers, antioxidants, and phenolic stabilizers for the insecticide e.g. phenol, cresols, hydroquinone, naphthols, resorcinol and pyrogallol.
Patent GB-861415-A (GB)
Title: Electromagnetic switching devices in sealed vessels
IPC: H01H51/28
Filed: 1958-11-28
Abstract: 861,415. Electromagnetic switches. STANDARD TELEPHONES & CABLES Ltd. Nov. 28, 1958 [Dec. 3, 1957], No. 38479/58. Class 38 (5). A contact device in a sealed tube has a magnetic contact member or members in the form of a helix coaxial with the tube. In Fig. 1, the glass tube 1 is sealed to the ends 2, 3 of the contact members 4, 5 which engage when a coil 6 is energized. The inner end of each helix is welded to a magnetic cylinder 9 coated with contact metal 10 (Fig. 3). In a changeover contact arrangement (Fig. 3), the end 7 of the single helical member is off-set from the axis of the tube and a contact 13 on a wire 12 engages a layer of contact metal on the face 11 of the cylinder 9. During assembly the end 7 is drawn to the left to set the contact pressure between 9, 13 and then welded to the wire 12 at 17, the welded ends being cut off after the wires have been sealed in the tube. The third contact consists of a magnetic cylinder 15. An insulator 14 may be provided.
Patent GB-1114443-A (GB)
Title: Multiple pass construction for once-through steam generators
IPC: F22B29/06
Filed: 1965-05-17
Abstract: 1,114,443. Once through vapour generators. FOSTER WHEELER CORPORATION. 17 May, 1965 [27 May, 1964], No. 38567/67. Divided out of 1,114,441. Heading F4A. The present Application discloses the same subject-matter as Specification 1,114,441 but the claims relate to the location of the reheater surfaces in the gas passes. It is also disclosed that an additional furnace pass may be provided by sub-dividing the number 2 furnace pass into two sequential passes (numbers 2 and 3, Fig. 17) each occupying part of one of the opposed side walls as well as part of the side portions of the front and back walls of the lower part of the furnace enclosure.
Patent GB-825999-A (GB)
Title: Improvements in or relating to magnetic amplifiers with negative feedback
IPC: G05B11/01
Filed: 1957-12-12
Abstract: 825,999. Magnetic amplifiers. ALLMANNA SVENSKA ELEKTRISKA A.B. Dec. 12, 1957 [Dec. 12, 1956], No. 38620/57. Class 40 (9). The invention relates to auto-self-excited transductors of the type shown in Fig. 1 in which the control winding 4 is biased by a voltage tapped from the load 1 and obviates the difficulties attendant on taking a tap from the load by providing auxiliary excitation windings 5<1>, Fig. 2, feeding an auxiliary load 6 connected in circuit with the control winding 4, the main excitation windings 5 feeding the load 1 proper. By discarding the rectifiers 9 and connecting the load 1 in a series circuit, A.C. energization is achieved without disturbing the feed-back from the auxiliary circuit. The auxiliary windings 5<1> may be of few turns and the auxiliary load 6 may be a low valued resistor.
Patent GB-864369-A (GB)
Title: Improvements relating to baffle devices in the fuel tanks of internal combustion engines
IPC: B60K15/077
Filed: 1959-11-16
Abstract: 864,369. Tanks. DAIMLER-BENZ A.G. Nov. 16, 1959 [Nov. 19, 1958], No. 38805/59. Addition to 844,599. Class 69 (1). In a modification of the baffle device of the parent Specification the return-pipe 114<SP>1</SP> for the fuel overflowing from the injection pump opens tangentially into the annular passage 105 enclosed between the outer and inner walls 101, 102 of the housing of the baffle device. The return pipe 114<SP>1</SP> opens in the region of the inlet opening 104. The fuel suction-pipe 113<SP>1</SP> through which fuel is drawn from the housing is connected to a duct 122 running round the front of a filter 117 disposed centrally in the reservoir space enclosed by the inner wall 102, this duct 122 being open towards the filter 117.