baber/WOPTO huggingface dataset:
Patent GB-693512-A (GB)
Title: Improvements in devices for changing bobbins in spinning machines
IPC: D01H9/04
Filed: 1950-12-12
Abstract: 693,512. Doffing and donning mechanism. CHRISTIANSON, C. O. Dec. 12, 1950, No. 30361/50. Class 120(ii) A device for changing bobbins in spinning machines comprising means for lifting- full bobbins from the spindles is characterised in that full bobbins are lifted by means. of sleeves adapted to be slid over the bobbins and provided with locking. members comprising balls or rollers movable in recesses in the sleeves, said recesses. being devised in a manner such as to permit of the sleeves being moved downwards over the bobbins and upon movement in the opposite direction to compel the balls or rollers to engage the yarn wound on the bobbins. As shown the device comprises a beam 1 extending along the length of the machine and carrying for each spindle a bracket 2 having at its free end a sleeve 3. This sleeve is provided with recesses 4 the depth or width of which increases downwardly and which house balls or rollers 5. A tube 7 having slots 6 of width less than the diameter of the balls is inserted into the sleeve 3 toprevent the balls leaving the recesses. Further recesses 8 housing balls 9 and helical springs 10 which urge the balls 9 through corresponding openings in the tube 7 are provided above the recesses 4. An arm projecting from the sleeve 3 carries an empty bobbin holder which comprises a clamping device having two substantially semi-circular legs 13 pivotedly mounted at 14 and acted upon by a spring 15 which legs surround a post 16 carrying a head 17 in which is provided a. spring 18 acting upon a stud 19. Mechanism comprising rotatable and axially movable shafts 33 having crank-like links 34 attached to their upper ends, piston 36 operating in a cylinder 37, rack 42, gear wheels 41, gear wheels 39 and a shaft 40 is provided for moving the beam 1 so as to lower the sleeve 3 over a full bobbin, lift the sleeve up so that it removes the full bobbin from the spindle and for transferring an empty bobbin from the holder 13-19 to the spindle.
Patent GB-1066849-A (GB)
Title: Method of compacting silicon particles
IPC: B28D5/00
Filed: 1963-10-02
Abstract: <PICT:1066849/C1/1> Silicon particles are compacted by hydrostatic pressure by a method which includes placing the particles in a flexible sleeve 2 which is located within a perforated metal tube 1 and closed by stoppers 4 to one of which a rod 7 is attached.  The tube 1 is then placed in a flexible bag 5 which is placed in a cylinder containing glycerine and subjected to pressures in the range 10,000-60,000 p.s.i.  The porous compacted mass may be sintered at about 1300 DEG  C.  Reference is made to particles of 75-150 microns size compressed to a body of density 1.7 grams/c.c.ALSO:Silicon particles are compacted by hydrostatic pressure by a method which includes placing the particles in a flexible sleeve 2 which is located within a perforated metal tube 1 and closed by stoppers 4 to one of which a rod 7 is attached.  The tube 1 is then placed in a flexible bag five which is placed in a cylinder containing glycerine and subjected to pressures in the range 10,000-60,000 psi.  The porous compacted mass may be sintered at about 1300 DEG C.  Reference is made to particles of 75-150 microns size compressed to a body of density 1.7 grams/cc.
Patent GB-800541-A (GB)
Title: Resin-impregnated fabric, suitable for use as a backing for pressure-sensitive adhesive tape
IPC: C09J7/21
Filed: 1954-10-21
Abstract: Solutions are formed of polyamide resins and thermosetting resins. Specified polyamide resins are those obtainable by the reaction of dimerized and trimerized unsaturated fatty acids of vegetable oils with ethylene diamine, and having the formula: <FORM:0800541/IV (a)/1> where R is alkylene and X at least five and not more than fifteen. Specified solvents are acetic acid, n-butanol, chlorobenzene, chloroform, cyclohexanol, isobutanol, isopropanol, methylene chloride, methyl isobutyl carbinol, trichloroethylene isopropanol and toluene, and mixtures of the two latter.  Specified thermosetting resins are para substituted phenol aldehydes such as para tertiary butyl and paratertiary amyl phenol aldehydes, and epoxy resins having structures of the type: <FORM:0800541/IV (a)/2> which latter may be prepared by the condensation of bisphenol and epichlorohydrin.  Adhesive compositions may be formed comprising natural rubber, polybutadiene, polyisobutylene, alkyl vinyl ether polymers, butadiene-styrene rubber, pale crepe rubber, zinc oxide, zinc stearate, aluminium hydrate, hydrogenated rosin glyceride and polyterpene resin.ALSO:Fabric material for the backing of pressure-sensitive adhesive tape is impregnated with polyamide resins obtainable by the reaction of dimerized and trimerized unsaturated fatty acids of vegetable oils with ethylene diamine.  The polyamide resins may be mixed with thermosetting resins.  The fabric may be immersed in a solution of the resin or resins and then dried by passage through an oven.  Specified solvents are acetic acid, n-butanol, chlorobenzene, chloroform, cyclohexanol, isobutanol, isopropanol, methylene chloride, methyl isobutyl carbinol, trichlorethylene and mixtures of isopropanol and toluene.  Specified thermosetting resins are para-tertiary butyl and para-tertiary amyl phenol-aldehydes, and epoxy resins made by the condensation of bisphenol and epichlorohydrin.  Further specified additives, which may be used with the resins in small amounts, are titanium dioxide, calcium carbonate, zinc oxide, stearic acid, castor oil, zinc stearate, aluminium stearate and lanolin.  Examples describe the treatment of fabrics made of cotton, glass, acetate rayon, nylon, polyester or polyvinylidene chloride fibres with polyamide resin alone or in conjunction with phenolic thermosetting resin; and the subsequent coating of the treated fabric with pressure-sensitive adhesive comprising natural rubber, butadiene-styrene copolymer rubber, polybutadiene, polyisobutylene or alkyl vinyl ether polymers.
Patent GB-1528771-A (GB)
Title: Cobalt-catalysed oxidation of c3 to c7 saturated aliphatic hydrocarbons to acetic acid
IPC: B01D3/32
Filed: 1975-07-21
Abstract: 1528771 Oxidation of C 3 -C 7  saturated aliphatic hydrocarbons to acetic acid BP CHEMICALS Ltd 14 July 1976 [21 July 1975 17 Sept 1975] 30389/75 and 38180/75 Heading C2C Saturated aliphatic hydrocarbons (C 3-7 ) are oxidized to a mixture containing acetic acid by contacting with a molecular oxygencontaining gas in the presence of an inert reaction medium and a cobalt catalyst (0À1 to 10À1 by weight of the reaction medium), at 70 to 150‹ C. and a pressure to maintain the liquid phase, in a continuous process in which not less than 5 and not more than 90% of the cobalt catalyst is introduced to the reaction zone as a + 3 oxidation state, and in a batch process in which not less than 11 and not more than 90% of the cobalt catalyst is in the +3 oxidation state. Examples describe the oxidation of nbutane, pentane and hexane and the inert medium may be benzene, chlorobenzene, phenyl benzoate a benzoic acid or preferably a lower fatty acid. The cobalt compounds are prepared by partial oxidation of the cobalt + 2 oxidation state or by mixing the + 2 and + 3 compounds. Examples describe batch and continuous process with suitable apparatus for the reaction and separation of the reaction products.
Patent GB-536620-A (GB)
Title: Manufacture of ketols of the cyclopentanopolyhydrophenanthrene series or derivatives thereof
IPC: C07J75/00
Filed: 1939-11-20
Abstract: 536,620. Cyclopentanophenanthrene ketols. SOC. OF CHEMICAL INDUSTRY IN BASLE. Nov. 20, 1939, No. 30403. Convention date, Nov. 19, 1938. [Class 2 (iii)] Ketols of the cyclopentanopolyhydrophenanthrene series or esters or ethers thereof are obtained by condensing a carboxylic acid halide of this series in which the carboxylic halide group is in the 17-position or is in a side chain in the 17-position with a metal derivative of a reactive methylene compound which contains at the reactive methylene group an esterified or etherified hydroxyl group, and hydrolyzing the condensation product. Parent materials mentioned include saturated and unsaturated carboxylic halides of the cyclopentanopolyhydrophenanthrene series and in particular #<SP>5</SP>-3-acyloxy-aetio-cholenic acid halides, # <SP>4</SP>-3- keto-aetiocholenic acid halides or enol derivatives thereof, corresponding compounds of the cholenic acid series, and halides of the 3:17- dioxy aetiocholenic acid or their derivatives. Metal derivatives of re-active methylene compounds include alkalic or magnesium derivatives of malonic acid esters, malonic acid nitriles, malonic acid amide, analogous derivatives of cyanacetic acid and acetoacetic acid which carry at the reactive methylene group besides the metal atom, a hydroxyl group esterified by an organic or an inorganic acid, including hydrohalogen acids, or etherified. In the second stage of the re-action the ester, nitrile, amide or aryl groups are hydrolyzed and finally the group convertible into the hydroxyl group is so transformed. In an example, sodium chloromalonic acid diethyl ester is condensed in benzene solution with #<SP>5À6</SP>-3-acetony-aetio cholenic acid chloride. The product is carefully saponified by a carbonate or a bicarbonate, and from the residue # <SP>5À6</SP>-pregnene-3:21-diol-20-one is obtained. It is purified by chromatographic separation. Instead of a metal halogen malonic acid derivative, there may be used a metalalkoxy-malonic acid or aceto-acetic acid derivatives. There may also be used as parent materials the corresponding 3-keto-acid halides. There may be thus obtained the known #<SP>4À5-</SP> pregnene-21-ol-3:20-dione.
Patent GB-1492436-A (GB)
Title: Audible warning devices
IPC: G10K9/12
Filed: 1975-07-21
Abstract: 1492436 Audible warning devices P R MALLORY & CO Inc 21 July 1975 [22 July 1974] 30421/75 Heading G5J An A.C. motor 10 has an anvil 30 magnetically coupled thereto to intermittently attract a bight-shaped arm 48, Fig. 4 into contact with the anvil to produce an audible warning. The anvil 30 may be secured between a shouldered core 26 and an inner field stator pole member 22 as shown in Fig. 2 or it may be formed integrally with the pole member 22, Fig. 3 (not shown). The vibrating arm 48 preferably has one end rivetted or welded to the motor housing, and the free end provided with a follower projection 40 which can be engaged by a cam 52 of a timer switch to prevent the arm 48 from striking the anvil, thereby disabling the device. Anvil 30 may be of iron to provide a low reluctance flux path from the centre of the motor to the buzzer assembly 12 and arm 48 may be of any suitable flexible material, including thermoplastic material, which allow magnetic material to be carried adjacent the anvil. A stiffening rib 41 may be provided on the follower to prevent it vibrating.
Patent GB-706414-A (GB)
Title: Improvements in and relating to the control of ward-leonard systems driving winding engines
Inventor: PETCH THOMAS HAYES
IPC: H02P7/34
Filed: 1950-12-13
Abstract: 706,414. Automatic speed control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 26, 1951 [Dec. 13, 1950], No. 30446/50. Drawings to Specification. Class 38 (4) The invention relates to Ward-Leonard systems for controlling speed in response to the difference between a reference voltage and a speed representative voltage, the normal speed voltage being greater than the main-generator-exciter system voltage. The speed-representative-voltage is taken from a potentiometer across, e.g. the main generator, and is maintained at a substantially constant value at all speeds, while the voltage across generator rises as the potentiometer tapping is reduced at high speed. Thereby the full generated voltage is used at low speeds, and provides close control. The speed-representative voltage may alternatively be provided by a tachogenerator, and the exciter may be an amplidyne or magnetic amplifier.
Patent GB-1478966-A (GB)
Title: Swimming pool construction
IPC: E04H4/00
Filed: 1973-06-13
Abstract: 1478966 Swimming pools ELCON Mfg CO Ltd 11 June 1974 [13 June 1973]  30467/73 Heading A4N [Also in Division E1] A swimming pool wall is made of rectangular plastics panels 12 each having a first major face 12a forming the pool's inner surface and a ribbed second major surface, the panels being interconnected by a key 20 along one edge engaged in a complementarily shaped groove 16 along the opposite edge of an adjacent panel, the key and groove each being spaced rearwardly of the panel's major faces and the key being located on a projection 21 having a surface 21a inclined at an acute angle to the panel. The plastics panels have a foamed interior of lower density than their outer surface. The top and bottom edges of the panels are respectively located in channels of a top member 28 and a similar bottom member. Buttresses 58 have undercut channels 24a embracing the tongues 24 formed by the joint between adjacent panels. Plugs 68 at the top and bottom of the buttresses have arrow-head sectioned ribs 74 engaged in undercut channels 38 in the top and bottom members 28. A reinforcement bar 80 in a channel 50 may be located in the channels 38, the bar having a groove 82 to receive the ribs 74. Alternatively, Figs. 8 and 9 (not shown), the plugs 68 may be T-sectioned with the stem engaged in an aperture in the top of the buttress 58 and the crosspieces engaging in apertures in the ends of adjacent top members 28. A coping 56 is clipped to the top member.
Patent GB-246278-A (GB)
Title: Improvements in or relating to the preparation and use of lactates
IPC: C07C51/41
Filed: 1924-12-18
Abstract: 246,278. Murphy, H. N. Dec. 18, 1924. Hardening and imparting special properties to water.-The reagents ordinarily applied in treating waters used in the manufacture of beer and the like are digested with dilute lactic acid which is afterwards completely or partly neutralized to produce a solid product. The neutralizing agent is preferably calcium carbonate, hydrate, or oxide, but the corresponding compounds of magnesium, sodium, or potassium may be used. Examples of the process are given.
Patent GB-148717-A (GB)
Title: Improvements in and relating to removable locking devices for drawers and the like
IPC: E05C19/18
Filed: 1919-12-05
Abstract: 148,717. Dixon, F. R. Dec. 5, 1919. Portable fasteners.-A portable fastener for drawers &c. comprises a strip a, having projections b, c, one of which engages with the bar above the drawer-way or with the bolt-hole, and a series of holes d, near the other end, adapted to be engaged by a padlock e, after the strip a has been inserted through the slot g in the plate f. In a modification, Figs. 5 and 7, a sliding part is employed instead of the projections b, c. The strip a passes through a slot m in the spring plate l and has engaging its upper surface the plate n, provided with a stud p, adapted to engage one of the holes o in the strip, in which it is maintained by the lower end of the plate l.
Patent GB-1186537-A (GB)
Title: Chlorinated Polyhydroxy Polyethers and Polyurethane Foams prepared therefrom
IPC: C08G65/28
Filed: 1967-07-03
Abstract: 1,186,537. Adducts of 4,4,4-trichloro-1,2- epoxybutane with carbohydrate materials. OLIN MATHIESON CHEMICAL CORP. 3 July, 1967 [8 July, 1966], No. 30561/67. Heading C2C. [Also in Division C3] Chlorinated polyhydroxy polyethers are obtained by reacting 4,4,4-trichloro-1,2-epoxybutane with carbohydrate based materials (i.e. carbohydrates and oxyalkylated carbohydrates) in the presence of acid catalysts at 30‹ to 200‹ C. Specified carbohydrate based materials are sucrose, the reaction product of sucrose with water and oxyalkylated derivatives thereof, the reaction product of sucrose with polyhydric alcohols and oxyalkylated derivatives thereof, other sugars, starch degradation products and starch and its derivatives (see Division C3). The 4,4,4-trichloro-1,2-epoxybutane may be used as a blend with a halogen-free epoxide.
Patent GB-543563-A (GB)
Title: Improvements in or relating to multi-cylinder internal combustion engines
IPC: F02B1/00
Filed: 1939-11-22
Abstract: 543,563. Regulating. SEBIA, SOC. D'EXPLOITATION DE BREVETS POUR L'INDUSTRIE L'AVIATION, ET L'AUTOMOBILE. Nov. 22, 1939, No. 30594. Convention date, Dec. 1, 1938. [Classes 7 (ii) and 7 (vi)] [Also in Group XXIX] In an engine operating with a supercharger and with transference of a part of the charge from one cylinder to another by delayed closing of the inlet valve, as described in Specifications 365,431, 411,367, and 447,167, means are provided for varying the time of opening of the inlet valve, preferably in accordance with altitude. A corresponding variation in the time of closing of the inlet valve may be effected simultaneously or the time of closing may be independently adjusted. Fig. 11 shows a servomotor device for obtaining an angular adjustment of the cam disc 1 actuating the inlet valves. An arm 6 effecting the angular adjustment is actuated by a rack and pinion 7, 20 and arm 8 connected to the servomotor piston 23, which is controlled by a piston valve 17 connected to an aneroid capsule 16. Lubricating-oil under pressure is supplied to one side of the piston at 13, and oil at a higher pressure to the other side at 15, the piston moving over a series of apertures 18 leading to a return passage 19. The valve 17 is constructed to uncover one of the apertures 18 at a time, with the result that the piston 23 is moved towards this aperture until it is just covered thereby.
Patent GB-599420-A (GB)
Title: Improvements in dough moulding machines
IPC: A21C5/00
Filed: 1945-11-15
Abstract: 599,420. Dough-moulding machines. JOB, E. Nov. 15, 1945, No. 30605. [Class 87 (ii)] A dough-moulding machine, of the kind in which dough is rolled between an endless travelling band 5 and a pressure board 1, is provided with a cutting blade 2 mounted in a bifurcated holder 7 which is pivoted to a bracket 9 so that the blade can be retained in either operative (full line) or inoperative (dotted line) position. In operative position the blade extends through a slot in the pressure board near the delivery end of the machine, to divide the rolled-up piece of dough in two. The blade is adjustably held in operative position by a pivoted stop 25 'and the bolt 19, and is held in inoperative position by a lug 18 resting on the bracket 9 and, if desired, by a pin 20 passed through coincident holes in the bracket and the pivot pin 8. The blade is held in the holder 7 by bolts 10 having enlarged shanks which bear on one side of the blade so that the two arms of the holder are not pressed together. To divide the dough into several pieces, several blades may be mounted in the holder. Specification 599,419 is referred to.
Patent GB-171695-A (GB)
Title: Improvements in and relating to finders for photographic apparatus
IPC: G03B13/02
Filed: 1921-11-16
Abstract: 171,695. Arndt, G. Nov. 16, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Focusing-devices; view-finders.-A focusing view-finder, more particularly for kinematograph cameras, is connected to the camera and adapted to show correctly the precise field of view of the camera irrespective of the distance of the object. The finder shown in Fig. 2 is pivoted at 2 to the camera A. The lens 4 is mounted on an inner sliding tube 3 and the image is focused on the fixed screen 5 by the ring 7 which has a cam-slot 8 engaging a pin 9 projecting from the tube 3. The ring 7 also turns a cam-plate 11 which is kept against the stop 12 on the camera by the spring 13 and inclines the finder relatively to the camera lens. The camera view is thereby kept the same as that in the finder and the distance for which the camera has to be focused is indicated by a scale on the cam disc 11. Alternatively, the camera may be automatically focused in focusing the view-finder. Alternatively, again the frame of the exposure aperture of the camera may be slidably moved in its own plane so that the centres of the camera image and of the finder image correspond. Fig. 3 is stated to be a diagrammatic view of this modification of the invention.
Patent GB-877285-A (GB)
Title: Improvements in semiconductor device
IPC: H01L23/055
Filed: 1959-09-08
Abstract: 877,285. Semi-conductor devices. GENERAL ELECTRIC CO. Sept. 8, 1959 [Sept. 10, 1958], No. 30613/59. Class 37. A semi-conductor device comprises a ceramic or glass block 10 having spaced conductive areas 15, 16, 17 thereon, a semi-conductor bar 18 having end portions secured to conductive areas 15, 16 and its centre secured to conductive area 17 by a wire 19 and electrical leads to the conductive areas 15, 16, 17. The metallized areas 15, 16, 17 to which the semiconductive Si bar 18 is soldered at its ends are formed by spraying or vaporization. Al wire 19 is fused to bar 18 and soldered to metallized area 17. The block 10 is held in place by tapered plugs of solder between the leads and metallized areas 15, 16, 17, gold solder being used. The gold is alloyed with 1 % Sb or Al. The above device is a unijunction transistor. Conventional transistors, transistor tetrodes, diodes, &c. may be mounted in the same way. Additional holes and conductive areas allow for more connections. The block 10 may be of ceramic material such as Be oxide. The cap 2 is welded or soldered to the base 1 by means of opposed flanges.
Patent GB-769200-A (GB)
Title: Improvements in or relating to hydroxylation of unsaturated fatty acids and esters thereof
Inventor: LOGAN ROGER LAWRENCE
IPC: C11C3/00
Filed: 1953-11-05
Abstract: 769,200. Hydroxylating unsaturated fatty substances by electrolysis. KESSLER CHEMICAL CO., Inc. Nov. 5, 1953, No. 30624/53. Drawings to Specification. Class 41. Unsaturated fatty acids and their esters having 11 to 22 carbon atoms are converted into the corresponding polyhydroxy compounds by reacting persulphuric acid immediately after its formation by anodic oxidation of 65-75 per cent aqueous sulphuric acid with the selected fatty material within a temperature range of 10-50‹ C. while agitating the reaction mixture and hydrolysing the sulphated fatty material after separating from the spent oxidizing acid to yield the polyhydroxy acid and/or ester. Preferably the peroxygen content of the hydroxylating solution is 0.3 to 1.0 per cent and 2 to 5 per cent excess of the theoretical peroxygen is supplied during the reaction. The spent acid may be regenerated by further anodic oxidation. The unsaturated fatty material may be treated with the persulphuric acid either in a tank separate from the electrolytic cell or it may be added to the anode compartment of the cell which is separated by a diaphragm from the cathode compartment, the anode being of platinum and the cathode of lead, while cooling coils are provided in the anode compartment and in the treating tank if a separate one is used. When treating the mixture of butyl esters of oleic, palmitic, and stearic acids derived from tallow fatty acids to hydroxylate the oleic ester, after separation from the spent persulphuric acid the esters are washed, neutralized with potassium or sodium hydroxide or sodium carbonate or bicarbonate and then boiled with water maintained neutral despite any sulphuric acid split off to avoid hydrolysis of the ester groups. The production of 9, 10 dihydroxy stearic acid and 10, 11 dihydroxy undecanoic acid from oleic and 10, 11 undecylenic acids are described, the impure hydroxylated acids being boiled in water and neutralized with respect to sulphuric acid. Hydroxylation of lard oil also is described and the production of 13, 14 dihydroxy behenic acid from erucic acid is referred to.