baber/WOPTO huggingface dataset:
Patent GB-299141-A (GB)
Title: Improvements in or relating to electric transformers
IPC: H01F29/12
Filed: 1927-09-01
Abstract: 299,141. General Electric Co., Ltd., Jolley, L. B. W., and Nunn, C. H. Sept. 1, 1927. Regulating transformers.-In a constant current transformer in which a movable winding is counterbalanced by a weight suspended by cables passing over cams on a pivoted lever the cams being shaped to cause the weight to produce a varying torque, the torque values necessary to obtain constant current over a range of load values are determined experimentally, and the cams are shaped accordingly. The primary and secondary windings 24, 29 embrace the centre limb 1 of a shell-type core, and the winding 29 is suspended by a pair of cables 32 so as to slide over insulating tubes 36 serving to space the winding from the core. The cables 32 pass over and are secured to cams 37 carried by a pair of levers 14 secured to a rotatable shaft 13. The other ends of the levers carry cams 40 from which the counterweight 43 is suspended, a dashpot 20 being attached to a cross-bar connecting the two levers. To determine the shape of the cams 40, cams of circular contour the centres of which coincide with the centre of the shaft 13 are first mounted on the levers 14. The transformer is then loaded, the load being increased in steps, and at each step the weight required to be suspended from the cams to produce the same current is noted. Thus the torque variations are ascertained, and the cams to be employed are shaped to give the same variations with a constant weight. An additional weight may be secured to the levers in a position such that its centre of gravity moves towards or away from the vertical plane passing through the pivotal axis of the levers as the latter rotate thus causing a variation in the torque required to be produced by the weight 43 and enabling the profile of the cams to be modified.
Patent GB-1452522-A (GB)
Title: Hydrosomerization of hydrocarbons
IPC: C07C5/02
Filed: 1973-10-17
Abstract: 1452522 Hydroisomerisation catalyst SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 17 Oct 1973 [19 Oct 1972 (3)] 22983/76 Divided out of 1452521 Heading B1E [Also in Division C5] A hydroisomerisation catalyst is formed by (i) physically mixing 10-90% wt. of a zeolite with a channel pore structure, e.g. L-sieve, omega-sieve or mordenite, with 90-10% wt. of a zeolite with a three dimensional porestructure, e.g. zeolites X-, Y-, A- or faujasite, the zeolites being decationised to an alkali metal and/or alkaline earth metal content of less than 0.5% wt. before or after mixing, (ii) incorporating a hydrogenative metal component comprising one or more Group VIII noble metals, and (iii) drying and calcining. The catalyst may contain 0.1- 1.0% wt. of the noble metal based on the mixture of zeolites.
Patent GB-152323-A (GB)
Title: Improvements in springs for valves
IPC: F16F1/06
Filed: 1920-08-04
Abstract: 152,323. Schoene, K. Oct. 8, 1919, [Convention date]. Helical springs. - In a valve loaded by helical leaf springs as described in Specification 21962/06, [Class 135, Valves &c.), the strain k is given by k= 6Pr/h<2> b (0À35 Sin # + 0À65 # Sin #+9 Sin 4##/2) where P is the axial force, r the mean radius, b the width, h the thickness of the metal, and # the angle from the free end. This is represented graphically in Fig. 3, showing a maximum value of k at 155 degrees. The invention consists in cutting down the section of the spring between the angle 155 degrees and the fixed end a as shown in Fig. 5, so that the strain is uniform.
Patent GB-749821-A (GB)
Title: Improvements relating to compound steam engines
IPC: F01B17/04
Filed: 1952-09-12
Abstract: 749,821. Compound steam engines. FUJII, 1. Sept. 12, 1952, No. 23009/52. Class 122(3) In a compound reciprocating steam engine comprising a high pressure cylinder 1 having cam operated inlet and exhaust valves 3, 5 and a low pressure cylinder 6 having an inlet port communicating with the exhaust port of the high pressure cylinder, exhaust steam from the high pressure cylinder is admitted to the low pressure cylinder when the high pressure piston 8 is within 45 degrees of its bottom dead centre and the low pressure piston 11 is within 45 degrees of its mid stroke position. An exhaust port in the high pressure cylinder 1 controlled by the piston 8 supplements through a pipe 7. the supply of exhaust steam to the low pressure cylinder 6 from which steam is exhausted from a piston controlled port 10 to a condenser 13. Valve diagrams are given for both cylinders. The crankcase 15 is airtight and communicates through a pipe 16 with the condenser.
Patent GB-1016375-A (GB)
Title: Steroid esters
IPC: C07J53/00
Filed: 1963-06-10
Abstract: The invention comprises steroids of the formula <FORM:1016375/C2/1> (wherein R is alkyl of 1 to 7 carbon atoms, phenyl or nitrophenyl) and their preparation by esterification of the corresponding 6-ols with a reactive derivative of the appropriate acid in the presence of an excess of pyridine at a temperature between 10 DEG  and 100 DEG C.  6a  - Hydroxy - 17 - ethylenedioxy - 3a ,5a  - cycloandrostane is prepared by reduction of the corresponding 6-one.
Patent GB-615190-A (GB)
Title: Manufacture of condensation products having a tanning action
IPC: C14C3/20
Filed: 1946-08-02
Abstract: Resinous condensates having a tanning action are prepared by condensing a sulphonic acid of a compound of the diphenyl series with formaldehyde and an unsulphonated diaryl sulphone containing at least one phenolic hydroxyl group.  The sulphonic acid or the sulphone or both may be precondensed with formaldehyde and then reacted with the other component with or without further addition of formaldehyde. Lists of sulphonic acid and sulphones which may be employed are given in the Specification.  The sulphones and sulphonic acid may be produced in situ by reacting a diphenyl sulphonic acid with a quantity of an aromatic oxy compound insufficient for complete conversion into sulphone, e.g. by reacting diphenyl sulphonic acid with phenol to give a mixture of diphenyl sulphonic acid and oxyphenyl-diphenylyl sulphone which is then condensed with formaldehyde.  The condensation may be carried out in acid or alkaline medium; the condensate produced is neutralized and rendered weakly acid with formic, acetic, lactic or oxalic acid.  It also may be obtained in solid form by evaporation, salting out or precipitation with acid.  In the examples, condensates are prepared from (1) sulphonated diphenyl, 4.41-dioxydiphenyl sulphone and formaldehyde; (2) sulphonated diphenyl-formaldehyde condensate, 4.41-dioxydiphenyl sulphone and formaldehyde; (3) diphenyl sulphonic acid, formaldehyde and 4.41-dioxydiphenyl sulphone-formaldehyde condensate; (4) sulphonated o-oxydiphenyl or methyl chloro - o - oxydiphenyl; 4.41 - dioxy - diphenyl sulphone and formaldehyde; (5) sulphonated o - oxydiphenyl, dimethyl dioxydiphenyl sulphone and formaldehyde. Specifications 397,672 and 416,191 are referred to.
Patent GB-1125442-A (GB)
Title: Determination of salinity in crude oils
IPC: G01N33/28
Filed: 1966-05-24
Abstract: 1,125,442. Electro-physical measurement. MEDITERRANEA RAFFINERIA ITALIANA PETROLI S.p.A. May 24, 1966 [Feb.15, 1966], No.23115/66. Heading G1N. To determine the salt content of crude oil by conductivity measurement, the crude is first shaken with a slightly polar aromatic or aliphatic hydrocarbon, e.g. xylol, n-butyl alcohol is then added to the solution, and finally methyl alcohol. This avoids the precipitation of asphaltic and bituminous matter that occurs if methyl alcohol is mixed directly with the crude. The conductance of this solution is measured by a pair of electrodes in a cylindrical shield having a fixed spacing and connected through an ammeter to an A.C. supply. The ammeter has two shunts to provide to ranges of conductivity. The circuit is calibrated by first adjusting the shunts with a standard resistance in place of the electrodes, and then testing known samples comprising a mixture of calcium, sodium and magnesium chlorides in methyl and butyl-alcohol.
Patent GB-367727-A (GB)
Title: Improvements relating to troughed belt conveyors
IPC: B65G39/10
Filed: 1931-08-17
Abstract: 367,727. Rollers. PRIOR, R. S., Summerleaze Road, Maidenhead, Berkshire. Aug. 17, 1931, No. 23128. [Class 42 (ii).] In a detachable unit for a troughed belt conveyer each roller 7 is divided longitudinally into two equal portions and is detachably mounted on the shaft 1. The halves of each roller are enclosed within a sheet-metal casing or tube 8. Screws 9 near the abutting edges of the casing secure it to one half of the roller, and screws 10 attach it to the other half. Each roller may have a core 6 of greater diameter than the shaft which is formed at each end with a recess 12 for the reception of a divided bush 13.
Patent GB-486831-A (GB)
Title: An improved golf bag
IPC: A63B55/00
Filed: 1937-08-24
Abstract: 486,831. Golf bags. MIEVILLE, H. C. Aug. 24, 1937, No. 23159. [Class 132 (ii)] A golf bag consists of two or more separable complem e n t a ry units each of which forms a complete smaller bag. Each unit consists of top and bottom D - shape metal frames held together by a pair of metal stiffeners 2, to form an elongated bay, which has a more or less flat side 5. Intermediate binding straps 6 may be stitched round the covering near the middle of the unit, the bottom of which is closed by a floor 7, constituted of a metallic U-strip which is fixed to the stiffeners 2. The units are assembled with a tongue and socket 13, 14, interlocked and secured at the open ends by clamping plates 21, 22, Fig. 5, having studs 23 fitting into sockets 24, Fig. 4, on the top D- frames of the units. The plates 21, 22 are mounted on a telescoping rod 15, which may be pulled apart to a certain extent, having a threaded nut 18 to clamp the whole together. To prevent longitudinal displacement of the two clamped units the pins 23 and sockets 24 may be squared. Alternatively an expansible band may be used to embrace the top of the assembled units. A three-unit bag may be formed by two half-oval shape units with an intermediate rectangular unit. The units may be of different sizes and the bag may be provided with a hood.
Patent GB-232861-A (GB)
Title: Improvements in or relating to trolley poles for electric vehicles
IPC: B60L5/04
Filed: 1924-10-01
Abstract: 232,861. Ablitt, A. J. Oct. 1, 1924. Releasing-devices for collectors.- Each pull-rod P of the trolly pole E has a quadrant-shaped slot D with a hook projection engaging the lifting- spindle of the pole. Shackles A adjustable on the rods P, are connected by chains C to brackets B on the pole E so that the pole is released when it leaves the conductor and is reset on pulling it still lower by the trolly rope.
Patent GB-822106-A (GB)
Title: Improvements in or relating to the alcoholysis of esters
Filed: 1957-07-22
Abstract: <FORM:0822106/IV (a)/1> Bis-(2-hydroxyethyl)-terephthalate is prepared by an ester-interchange reaction between a dialkyl terephthalate containing up to 3 carbon atoms in the alkyl group and ethylene glycol in the presence of an ester-interchange catalyst, wherein the liquid reactants and reaction products pass downwardly through a reaction zone, into the lower part of which is introduced further ethylene glycol in vapour form, so as to maintain the molar ratio of ethylene glycol to terephthaloyl radicals in the reaction zone within the range 1.5 : 1 to 3 : 1, removing the alkanol formed in the reaction in vapour form from the upper part of the reaction zone and removing the product in liquid form from a collecting zone at the lower end of the reaction zone.  A continuous reaction may be carried out where liquid dialkyl terephthalate and ethylene glycol are introduced with the catalyst, which may be dissolved in ethylene glycol, into the upper portion of the reaction zone and vapours of ethylene glycol and the alkanol formed in the reaction pass up through the reaction zone in countercurrent to and in intimate contact with p  the descending liquid reactants.  The desired mol. ratio in the reaction zone is established by adjusting the flow of glycol into the upper portion of the zone and the ratio is kept within the desired limits by adjusting the flow of glycol vapour into the lower portion of the reaction zone.  The temperature in the upper portion of the reaction zone is preferably 150-190 DEG  C., that of the lower portion 200-235 DEG  C. and that of the collecting zone constant within the range 200-245 DEG  C.  The ester-interchange catalyst compound may contain any of the common metals and is preferably zinc acetate dihydrate present to the extent of 126 parts of zinc per million parts of di-alkyl terephthalate.  The reaction may take place in a reactor similar to that shown in the Figure where dialkyl terephthalate and catalyst enter the reaction zone 1 through 8 and 9 and ethylene glycol enters through 5, the reactants and liquid products pass downwardly over plates to the collecting zone 2 which is heated by coil 6 and the product withdrawn through 11.  The alkanol of reaction, which may contain some vaporized or entrained ethylene glycol and dialkyl terephthalate is withdrawn through 10 and passes to a rectifying column 12 fitted with an alkanol condenser 13 and a reboiler 14 which are cooled and heated respectively by 15 and 16.  The alkanol is recovered from 13 and the ethylene glycol overflow passes from 14, which is fed with fresh ethylene glycol from 18, through 17 to the ethylene glycol boiler 3, heated by 7.  From boiler 3 liquid glycol is pumped through 5 to the top of the reaction zone, and glycol vapour is passed through 4 to the lower end of the zone.  Detailed examples are given using dimethyl terephthalate in this type of reactor.
Patent GB-480362-A (GB)
Title: Apparatus for heating flowing liquid
IPC: F24H9/20
Filed: 1936-08-24
Abstract: 480,362. Vapour burners. GODESIAWERK GES. Aug. 24, 1936, No. 23258. Convention date, Aug. 24, 1935. [Class 75 (i)] A heater for water or other liquid is fitted with a vapour burner comprising a vaporizer h connected by a pipe r to a nozzle w discharging into a mixing tube x which is bent through 180 and is connected to parallel slotted burner tubes o of flattened section. Fuel is fed by gravity to the vaporizer through a pipe e from a tank a which is supported on a forked bracket z<1> by a bolt z<2>. The bolt z<2> also carries a bracket z supporting the heater casing. A needle valve s controlling the nozzle w can only be opened when the valve v<1> controlling the water supply to the heatexchanger is open and the valve v<1> cannot be shut when the valve s is open owing to the engagement of the hand wheel operating the valve s with a recess in the hand wheel operating the valve v<1>. The vaporizer preferably consists of concentric tubes forming an annular chamber containing a spiral i and is heated initially by a spirit burner tray q having a forked end embracing the. pipe r. The mixing tube x is of progressively increasing cross-section which changes from circular to rectangular form. The burner is removably secured by screws to a bracket p attached to a support p<1>. The vaporizer is secured to brackets g, g<1> attached to the bracket p.
Patent GB-1074619-A (GB)
Title: Process and apparatus for recovery of glycols
IPC: C07C27/00
Filed: 1965-06-01
Abstract: 1,074,619. Condensation of vapours. MONSANTO CO. June 1, 1965 [June 1, 1964], No. 23260/65. Heading BIB. Excess ethylene glycol is recovered from the polymerized product of the reaction between the glycol and dimethyl terephthalate by directing the vapour from he polymerization vessel through pipe 11 into contact with a drum 12 rotating on a horizontal axis in chamber 10 which contains a pool 14 of cool liquid glycol. The distance between the discharge end 29 of pipe 11 and the drum 12 is 3 to 76 mm. Non- condensed vapour leaves chamber 10 through outlet 15, which is connected to a source of vacuum. Liquid glycol containing solid esters in suspension is removed from the rotating drum by scraper 16, and the suspension is withdrawn from chamber 10 through outlet 17 to a filter. The filtered glycol is cooled to about 40‹C., and some of it is withdrawn from the system while the remainder is recycled to the drum through inlet 13. Inlet pipe 11 is provided with a heating-jacket 20 in order to maintain the temperature of the vapour at 265‹ to 300‹C. The drum is rotated at 10 to 40 r.p.m.; and it may be internally heated, if desired.
Patent GB-729540-A (GB)
Title: Improvements in boring apparatus for taking samples of the soil
IPC: E21B25/00
Filed: 1953-08-24
Abstract: 729,540. Borehole apparatus. VREUGDENHIL, D. Aug. 24, 1953, No. 23287/53. Class 85.  Boring apparatus for taking samples of soil comprises a plurality of sections adapted to be interconnected and each consisting of an inner end an outer tube telescopically movable with respect to each other and a valve adapted to be opened to take in samples of the soil during part of the withdrawal movement of the apparatus from the ground, the arrangement being such that the tubes of each section move telescopically only during the withdrawal of the apparatus from the ground and such telescopic movement effects the opening of the valve during the initial part of the movement and the closing of the valve during the last part of the movement, the telescopic movement of the various sections taking place successively. As shown in Figs. 1 and 4, each section comprises an outer tube 1 with a projection 4 co-operating with a slot in the inner tube 2 as the tubes move relatively to each other. The tube 2 at its lower end is screwed to an intermediate piece 3 which has at its lower end an enlargement screwed to the outer tube of the following section. A ring 7 is screwed to each outer tube 1. Each section has a valve 13 provided with two legs 14, 15, engaging around a seat 16 arranged at an opening on the tube 1, the valve having an upper cutting edge 17 and two sharp side faces. As the apparatus is being driven into the ground the valve 13 is closed, but on withdrawal of a section of the apparatus the valve is opened by a detent on the inner tube, allowing a sample of soil to enter the section. The inner tube 2 is slotted and near the top has a wall 21 with an inclined abutment 22. This abutment engages the valve near the end of its upward movement, thereby closing the valve. About this time the ring 7 carried by the outer tube 1 abuts against the bottom of the inner tube 2 whereby the inner tube 2, the intermediate piece 3 and the outer tube 2 of the next section are carried upwardly and a second sample of soil is cut by the second section. A sample chamber 10 may be placed in each inner tube, the chamber being open at the top and having a ring-shaped bottom 11 provided with a flange 12 for enabling the chamber to be pulled out of the inner tube by the hook 29, Fig. 9, of a tool 28, when the section has been dismounted.
Patent GB-730041-A (GB)
Title: Improvements in and relating to drawing mechanisms for textile spinning and preparatory machinery
IPC: D01H5/50
Filed: 1952-09-17
Abstract: 730,041. Textile drafting rotter weighting arrangements. ESTIRAJES BALMES SOC. ANON. Sept. 17, 1952 [Sept. 29, 1951], No. 23304/52. Classes 120(2) and 120(3). Pressure is applied to the upper rollers of drawing mechanism by a pressure arm in the form of a casing having a single adjustable spring combined with means for transmitting pressure to the rollers and means for removing the pressure from all the rollers or from the front roller only. Upper rollers 5, 7, 8 are held in bearings 9, 10, 11 by springs 16 so that the rollers and bearings may be raised together. Bearings 10, 11 are adjustably secured on a bar 14 engraved with a scale-denoting the distance between rollers 7, 8. A pin 13 on the bar 14 acts as a pivot for the bar when it is raised in association with the casing 23 by means of a frame member 30 pivoted to the casing. The casing 23 also supports the loading means comprising a spring 49 in a frame 50 provided with an adjustable plug 52, a rod 54, lever 56, 58 and lever 36 in which the bearing 9 is formed and which bears upon the bar 14 through a roller 37. The front roller 5 may be raised independently of the other rollers by manually lifting the end 40 of the lever 36, whereupon a pin 41 is held by a catch 32. If desired, by releasing a catch 25, the casing 23 may be lifted carrying with it the loading mechanism, front roller 5, control roller 6 and, unless the frame 30 is released from the bar 14, rollers 7, 8. Instead of the helical spring 49, a flat laminated spring may be used or a substantially straight lever acted upon at one end by a spring may be pivoted to the casing 23 and the lever 36. Specification 701,134 is referred to.
Patent GB-733180-A (GB)
Title: Carriers for overhead conveyor transportation
Inventor: GREGORIAN GORIUNE THADDEUS
IPC: B61B12/02
Filed: 1952-09-17
Abstract: 733,180. Slings. BOWATERS DEVELOPMENT & RESEARCH, Ltd. Sept. 17, 1953 [Sept. 17, 1952], No. 23371/52. Class 78 (4). Bundles of logs &c. are suspended from a runner on an overhead ropeway by a carrier 1 from which is suspended a sling 35 normally embracing the bundle and provided with means for releasing it so that the bundle drops out of balance on to a normally idle sling 8 and is thereby tipped and deposited. The sling 35 has an eye 36 at one end through which passes a button 38 supported in a recess between a pair of jaws 12, 13 carried by a cross-member 4 on the carrier 1. The movable jaw 13 is mounted on a plate 14 pivoted at 15 to the member 4 and is maintained in position by a part 18 of a bell-crank lever engaging a recess 16 in the plate. The lever is pivoted at 21 and has an arm 19 with an abutment 20. Release of the jaw is prevented by a lever 23 mounted on a pivot 24 and having an eccentric 25 which abuts a stop 17 on the plate 14 when the lever contacts a stop 26. When the lever 23 is moved to contact a stop 27, the eccentric is moved from the stop 17 so that when the abutment 20 is struck at the discharge point the member 18 moves from the recess and the jaw is free to pivot. The button is thus released and under the load passes through the eye 36; the weight of the load is then taken by sling 8 which allows the load to pivot to discharge. Initially the load is placed over the sling 35 in a ship. The button is pushed through the eye and a choker 42 on a chain is placed between the eye and button. The sling is then attached to the hook of a crane and transported to a lift truck. The forked end of the load arm of the truck is engaged beneath the button and is moved to the carrier where the button is engaged by the jaws 12, 13. The choker 42 is removed, the eye 37 is placed over a hook 43 on the crossbeam 4 and the chain of the choker is placed through the hook. The lever 23 is moved to engage the stop 27 by an abutment on the ropeway supports. In a modified form of carrier instead of the sling 8, chains are used attached to the carrier and to sling 35.
Patent GB-750985-A (GB)
Title: Mechanical drum drive for slicing machines
IPC: B26D1/50
Filed: 1954-08-13
Abstract: 750,985. Slicing bread. AMERICAN MACHINE & FOUNDRY CO. Aug. 13, 1954 [Sept. 17, 1953], No. 23547/54. Class 5 (1). In a bread-slicing machine with endless-band cutters 6 stretched between drums 3 and 4 driven by double V-belts 24 and 34 respectively from pulleys 22 on a motor shaft, the belts are tensioned by idler pulleys 25, 36 which tensioning does not affect the tension of the band cutters 6 since the spacing the drum 3 from the roll 4 is adjustably locked in position by a screw 19. The exterior V of the belt 24 is held in contact with an arc of the pulley 23 of the lower drum 4 by the idler pulleys 25 and 26, the pulley 26 being adjustable for tension by adjusting the position of its support arm 31 by a clamp bolt 32 in a slot 33. The other belt 34 may also be of double V cross-section and is tensioned by the pulley 36 on a pivoted arm 38 adjusted by a screw bolt 42. The belts 24 and 34 may be in duplicate.