baber/WOPTO huggingface dataset:
Patent GB-422754-A (GB)
Title: Improvements in and relating to slide casters
IPC: A47B91/06
Filed: 1934-04-04
Abstract: 422,754. Ferrules &c. for furniture. DUNCAN, T. P., 311, 64th Street, Newport News, Virginia, U.S.A. April 4, 1934, No. 10188. Convention date, April 25, 1933. [Class 134] A furniture slide or castor comprises a circular core plate 1 having strands 6 of fibrous material wrapped thereon to provide a fibrous facing for contact with the floor. The plate 1 may have a central attaching tang struck out therefrom and may be formed with bent radial fingers 4 providing notches 5 wherein the strands 6 are engaged. The strands may be arranged chordally of the circular plate so as to provide a central pocket 7 for receiving grit. The strands may be treated with wax or like material. A detachable protecting cap may be provided to cover the fibres when not in use or for use on rough surfaces. The cap may have a peripheral flange adapted to snap over the slide and the flange may have inward protuberances for engaging the notches.
Patent GB-299264-A (GB)
Title: Improvements in multiple bar magnets
IPC: H02K21/24
Filed: 1928-04-04
Abstract: 299,264. Quast, F., and Eichert, A. F. V., (trading as Berko-Werke Quast & Co.). Jan. 28, 1928, [Convention date]. Magneto-electric machines. -A field-magnet for a magneto for a bicycle lamp or a similar purpose consists of a number of bar-magnets inserted into a yoke and secured thereto by a fastening-device engaging with openings in the magnets. In the arrangement shown, the yoke 4 is held on a spindle 2 between a. collar 16 and nut 17. The magnets 5 enter openings in the yoke and are held 17. The magnets 5 enter opengripped between the yoke and the collar 16 and entering slots in the magnets. The plate 13 may be of a star shape so that it can be inserted after the magnets have been placed in position and then turned to enter the slots. In a modification. the magnets may be secured by spring rings entering grooves in the magnets, which rings may be held between the laminations of the yoke.
Patent GB-105005-A (GB)
Title: Improvements in Coal Savers for Domestic Firegrates.
Inventor: WEBSTER LEONARD ARTHUR
Filed: 1916-07-20
Abstract: 105,005. Webster, L. A. July 20, 1916. Fuel - economizers. -A coal-saver, of the kind consisting of a hollow perforated air heating and supplying body with a large open base 1, is made with eaves 4, 9 or similar ribs, lips, ridges, &c. immediately over the air outlets 7, 8, so as to prevent them from becoming choked by ashes.
Patent GB-1077255-A (GB)
Title: Improvements in and relating to domestic washing machines
IPC: H02P3/18
Filed: 1966-03-09
Abstract: 1,077,255. Control of A.C. motors. PHILIPS GLOEILAMPENFABRIEKEN N.V. March 9, 1966 [March 11, 1965], No. 10297/66. Heading H2J. [Also in Division F2] In a domestic washing-machine, an asynchronous motor is controlled by a switch 1, operated by the cabinet lid P, and a switch 4 actuated by a cam 7 on a washing drum. On closure of lid P, switch 1 is moved to contact 3 so that the main winding 9, 10 of the motor is connected to mains supply terminals 30, 31, an auxiliary winding 11 and capacitor 12 being connected in parallel with portion 9 of main winding 9, 10 until a centrifugal interrupter 8 operates at operational speed to disconnect them. When the lid is removed, switch 1 is moved to contact 2 and subsequently cam 7 moves switch 4 to contact 5 whereby capacitor 12 is connected in series with the main winding 9, 10 so that the motor is braked rapidly.
Patent GB-543970-A (GB)
Title: Improvements in or relating to the catalytic reforming of hydrocarbon motor fuels
Filed: 1940-06-13
Abstract: 543,970. Catalytically reforming motor fuels. STANDARD OIL DEVELOPMENT CO. June 13, 1940, No. 10309. Convention date, Aug. 12, 1939. [Classes 32 and 91] The octane rating of a hydrocarbon motor fuel having an end boiling point of 405‹F. is improved by catalytically reforming the fraction boiling up to 325‹F. in the absence of other fractions and then blending the reformed fractions with other fractions to constitute the required fuel. In treating fuels obtained by cracking, the fraction boiling within the range 192-325‹F. only is subjected to reforming, which is effected catalytically and preferably in presence of hydrogen. In examples (1) A naptha cut having an end point of 325‹F. and obtained directly by distillation of an East Texas crude is treated with hydrogen at 920‹F. and under a pressure of 200 lbs. per square inch in presence of a catalyst comprising 97 per cent. Al 2 O 3  and 3 per cent. Cr 2 O 3 . A feed rate of one half volume of cold oil per volume of catalyst per hour was used. (2) An East Texas crude is topped to remove fractions boiling up to 410‹F. and a gas oil fraction of boiling range 470-800‹F. separated therefrom is cracked in known manner and the cracked fraction of boiling range 200- 325‹F. mixed with an equal quantity of virgin naphtha boiling up to 325‹F. is reformed under similar conditions as set forth above but in presence of a catalyst comprising a mixture of aluminium and molybdenum oxides. The reformed fractions are blended with heavier and lighter fractions to make up as gasoline of end boiling point 405‹F. The Specification as open to inspection under Sect. 91 includes example 3 in which a naphtha boiling up to 325‹F. obtained by distillation of Muskegon crude is thermally reformed by heat treatment in a coil at 700-1000‹F. under a pressure of 700 lbs per square inch and with a feed rate of 15 volumes of cold oil per volume reaction space per hour. This subject-matter does not appear in the Specification as accepted.
Patent GB-910132-A (GB)
Title: Process for making linear polyethylenes having controlled melt flow properties
IPC: C08F110/02
Filed: 1959-03-25
Abstract: High molecular weight polyethylene is made by polymerizing ethylene at a temperature of from 0 DEG  to 100 DEG C., in an inert diluent and in the presence of a catalyst comprising a mixture of (a) a metal hydride or organometallic compound, and (b) a compound of a transition metal, and a control agent selected from alphaolefins, alpha-acetylenes, n-alkadienes containing at least four carbon atoms, 2-alkyl-1,3-butadienes, and 2-halo-1,3-butadienes, in an amount corresponding to from 0.01 to 30 milligram-moles per gram-mole of ethylene.  Components (a) and (b) of the catalyst, are used in amounts corresponding to from 0,25 to 4 atoms of the metal in (a) to one atom of the metal in (b).  The control agent may be acetylene, methylacetylene, vinyl acetylene, phenyl acetylene, 1,3-butadiene, 1,3-pentadiene, 1,4-pentadiene, 2,4-hexadiene, 1,5-hexadiene, propylene, 1-butene, 3-methyl-1-butene, 1-hexene, 1-octene, 1-decene, 1-dodecene, styrene or, o-, m-, or p-methyl styrene.  The metal of the hydride or organometallic compound may be zinc, aluminium, germanium, tin, lead, or magnesium.  Specified compounds are trimethyl-, triethyl-, tripropyl-, trisobutyl-, or trioctyl-aluminium, lithium aluminium hydride, lithium aluminium tetrahexyl, and diethylaluminium chloride or bromide.  The preferred transition metal compounds are titanium tetrachloride, titanium trichloride, titanium tetrabromide or tribromide.  The polymerization is generally effected in the presence of an inert hydrocarbon medium. Specifications 799,392, 819,867 and 827,517 are referred to.
Patent GB-110538-A (GB)
Title: Improvements in Salt-grinding Mills.
Inventor: KOELLA ALBERT
IPC: A47J42/34
Filed: 1917-07-17
Abstract: 110,538. Kolla, A. Oct. 20, 1916, [Convention date]. Powder distributors.-A hand-mill for grinding salt for domestic use comprises a casing 1 with an inlet 9 and an outlet 8, a funnelshaped container 10 for kitchen salt, and a manually rotated and longitudinally fluted roller 2 arranged between stationary cylindrical members 6, 7. The upper members 6, against which a preliminary crushing is effected, are spaced farther from the roiler 2 than the lower mernbars 7. The container 10 is closed by a lid 11 secured by a bayonet joint. All the parts of the mill are made of wood.
Patent GB-141720-A (GB)
Title: A process for the conversion of fatty acids with several double linkages or of their glycerides into oleic acid-like fatty acids or their soaps
IPC: C11C3/00
Filed: 1920-04-13
Abstract: Fatty acids containing a number of double linkages are converted into fatty acids resembling oleic acid by saponifying them or their glycerides, and heating the resulting neutral soaps to 210-250 DEG C. without evaporation to dryness.  The product may be treated with mineral acid to isolate the fatty acid, or may be used as soaps if alkalies are used as saponifying agents.  If alkaline earths are used for saponification, the products may be treated with alkali carbonates for the production of soaps.  As raw material, sesame or cotton seed oil or the fatty acids therefrom may be employed. Reference is made to the Varrentrap reaction for converting oleic acid into palmitic acid by melting at 320 DEG  C. with excess of caustic potash or with a mixture of caustic soda and paraffin.
Patent GB-885014-A (GB)
Title: Improvements in or relating to mixer circuit arrangements
Inventor: MILLER WILLIAM FRANCIS
IPC: H03D7/12
Filed: 1960-03-23
Abstract: 885,014. Transistor frequency-changing circuits. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Sept. 29, 1960 [March 23, 1960], No. 10375/60. Class 40(6). An arrangement for mixing high-frequency voltage waves from two low-impedance sources, comprises a first transistor 11 to the base of which are applied waves from the one source through an impedance, comprising resistor 9 and blocking condenser 7, which is high relative to the impedance of that source. The base circuit of the transistor 11 is completed by a high-frequency choke 13. The second source is fed in an exactly similar manner to a second transistor 12. The transistors 11, 12 are connected as emitter followers, being resistance-capacity coupled to a pair of further transistors 21, 22 respectively which have their emitters coupled together over condenser 23. The collectors are joined together to a tap on tuned circuit 31, across which the beat frequency appears. The arrangement provides a high degree of isolation between the two sources.
Patent GB-912726-A (GB)
Title: Improvements in or relating to transistor circuit arrangements
IPC: H03F7/04
Filed: 1961-03-22
Abstract: 912,726. Parametric amplifiers. TELEFUNKEN G.m.b.H. March 22, 1961 [March 31, 1960], No. 10434/61. Class 40 (9). A transistor amplifier includes means for applying a pump frequency to vary the collector blocking layer capacity so as to produce parametric amplification. As shown, the signal is applied via a tuned input circuit 1 to the emitterbase circuit of the transistor 3, the output from the collector-emitter circuit being emitted via a tuned circuit 2. The pump frequency is applied across the collector base circuit and may be twice the signal frequency. If the pump frequency is different from this a circuit 5 tuned to the difference between the pump and signal frequencies must be provided. In a modification, Fig. 2 (not shown), the pump source is connected across the transistor output circuit. The circuit may also be used as a mixer, the output being taken at a frequency equal to the difference between the pump and signal frequencies.
Patent GB-963621-A (GB)
Title: Electrical switch
IPC: H01R13/70
Filed: 1962-03-19
Abstract: 963,621. Retractive switches; snap-action switches. UNITED-CARR FASTENER CORPORATION. March 19, 1962 [April 28, 1961], No. 10487/62. Heading H2B. A switch comprises an outer shell 10 housing the switch mechanism, and a button member 21 slidably mounted in an opening 14 in the shell wall such that when button 21 is slid in either of two opposed directions switch actuator 16 slides so that a ramp 23 thereon actuates the switch mechanism via a leaf spring 58, a spring 24 automatically returning the actuator 16 to its inoperative position after it has been slid in one only of the two directions (i.e. to the right) and the manually applied pressure removed. Ramp 23 rests in a notch 60 of leaf spring 58 when actuator 16 is in its inoperative position, and when slid to the left the ramp rests on a flat land portion 59 of leaf spring 58 maintaining the spring 58 in a depressed condition operating a mioroswitoh button 56. Alternatively the ramp is positively held on the land portion by a stop on the leaf spring (Figs. 8, 9, not shown). Spring 24 is located in a channel of actuator button 21 formed by spaced parallel portions 22 providing two ramps 23 for actuating two microswitch buttons 56. The switch housing is in two parts 32, 32a, which are screwed together inside the outer shell 10.
Patent GB-683969-A (GB)
Title: Improvements in and relating to thickened oils
IPC: C09K8/06
Filed: 1950-04-28
Abstract: A thickened oil comprises an oil, 1-40 per cent by weight of an unshrunken gel of an oxide or a hydroxideof an amphoteric metal, and 2-20 per cent by weight of the gel, of an organic acid containing at least 10 carbon atoms in the molecule.  Acids used are phosphinic or phosphonic acids, fatty acids, aliphatic dicarboxylic acids, amino fatty acids, sulphonic acids or naphthenic acids or their chlorinated, sulphurized or phosphorized derivatives.  Particular acids mentioned are stearic, oleic and linoleic acids; tetradecane-1-phosphinic, n-octadecane-1-phosphinic, 3, 5-di-isobutylbenzene phosphinic, n-hexadecane phosphinic, methylhexadecane-1-phosphinic, dodecane-1-phosphonic, 10-phenyldecane-1-phosphonic, tetradecane phosphonic and 2, 4-diamylcyclohexane phosphonic acids; octadecenyl succinic acid, 12-amino-stearic acid, petroleum sulphonic acids, Turkey red oil and polyamyl naphthalene sulphonic acids.  Oils specified are mineral lubricating oils, vegetable and fish oils, synthetic lubricants such as silicones, polymerized olefins, alkylene glycol polymers, esters of dicarboxylic acids such as bis (2-ethylhexyl) sebacate, and organic phosphates such as tricresyl and trioctyl phosphates; oils such as kerosene, gas oil, fuel oil and the corresponding shale oil fractions may also be used.  Gels used may be aerogels or oleogels. Optional additives mentioned are antioxidants, extreme pressure agents, and thickeners such as polymers of methacrylic acid esters and polymers of olefins and diolefins.
Patent GB-851554-A (GB)
Title: Method of preparing therapeutically active derivatives of p-toluene sulphonyl aminoacetic acid
Filed: 1958-04-02
Abstract: The invention comprises N-alkyl derivatives of p-toluenesulphonyl aminoacetic acid wherein the alkyl group contains 2-14 carbon atoms and their preparation by (a) condensing p-toluenesulphonyl-aminoacetic acid with an alkyl halide, sulphate or arylsulphonate; (b) reacting p-toluenesulphonyl chloride with an N-alkylaminoacetic acid or its methyl or ethyl ester (followed by saponification if an ester is used); or (c) condensing a p-toluenesulphonyl-N-alkylamide with a haloacetic acid or its methyl or ethyl ester (followed by saponification if an ester is used). Examples describe the preparation of N - p - toluenesulphonyl - N - alkyl - amino - acetic acids of the formula:  <FORM:0851554/IV(b)/1> wherein R is ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert.-butyl, n-amyl, isoamyl and n-hexyl.  Alkylaminoacetic acids. n-Butyl aminoacetic acid is made by reacting n butylamine with chloroacetic acid and is converted into the ethyl ester.  The ethyl ester of N-amylaminoacetic acid is made by treating ethyl chloroacetate with amyl amine and is saponified to the free acid.
Patent GB-910284-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/32
Filed: 1959-03-26
Abstract: 910,284. Suction cleaners. ELECTROLUX Ltd. March 26, 1959 [April 1, 1958], No. 10567/59. Class 8(1). The top of the casing 11, Fig. 7, of a cylindrical suction cleaner has sections at two different levels connected by a sloping portion and the handle 15 is connected to the higher level close to the sloping portion and to the lower level remote from the sloping portion. A strip 45 of substantially inverted U-shape extends along the top of the casing and is provided with openings 47, 48 for the handle 15. The handle is made from a resilient plastics material and the right hand end of the handle is inserted from below through the opening 48 and then through the opening 47 from above. Suitable flanges are provided to fin the handle in the strip which is then mounted on the casing by screws such as 66. The strip may also enclose a switch mechanism as described in Specification 910,285. An end cover 21, Fig. 13, is pivoted at 70 to the casing and is provided with releasable fastening means in the form of a lever 85, pivoted at 87 and provided with flanges 92 which engage recesses 93 on an end ring 71. The cover houses a cable reel as described in Specification 910,287.
Patent GB-912825-A (GB)
Title: Improvements in or relating to the production of hexenes
IPC: C07C2/08
Filed: 1960-03-23
Abstract: 4-methylpentene-1 is obtained by the dimerisation of propylene at below 140 DEG C. in the presence of a lamellar complex of sodium and carbon, preferably graphite, having the formula NaC64. The complex may be formed in situ and may be mixed with alkali metal supported on carbon, free alkali metal or free carbon. Reaction is effected at 50-4,000 p.s.i.g. and 100-140 DEG C. in the presence or absence of a hydrocarbon solvent for times of 1 minute to 12 hours.  Water, oxygen, allene or methylacetylene should be absent but inert gases such as nitrogen, methane, ethane or propane may be present.  The catalyst may be fixed, fluidised or used as a slurry.  Specifications 824,917 and 912,826 also are referred to.
Patent GB-106539-A (GB)
IPC: F02B33/00
Abstract: 106,539. Roots, J. D. June 8, 1916. Addition to 21614/14. Regulating.-The pump or fan described in the parent Specification as being driven by electricity and situated between the carburettor and the engine cylinder is driven from the engine crankshaft through change-speed paring. Fig. 1 shows a centrifugal fan H which under normal conditions is out of action. When increased power is required, the fan is driven from the crankshaft B through chain gearing directly, or through a train of spur gearing N in addition. As an alternative, an epicyclic train may be used, the drum of which is allowed to slip or is gripped by a band brake, which may be controlled automatically by an aneroid device in accordance with the altitude. When a piston pump is used, it draws its supply from a second carburettor and delivers the charge close to the cylinder admission valve.
Patent GB-527267-A (GB)
Title: Mechanical toy with remote control
IPC: A63H17/36
Filed: 1939-04-05
Abstract: 527,267. Mechanical toys with remote control. MARX & CO., Ltd., L. (Marx & Co., Inc., L.). April 5, 1939, No. 10666. [Class 132 (iii)] A self-propelled wheeled toy comprises steering means, means such as a spring normally lightly biassing the steering means in one direction, a string extending from the toy, said string being operatively connected to said steering means in such manner that tension applied to the string turns the steering means against the action of its bias. In Fig. 5, the front wheel S of a toy dog is mounted on a spindle 90 which is rotatable by gear and worm 96 on a shaft 98 carrying a drum 100 from which may be unwound against the action of spring 102, string which has a limiting bead 117 and a limiting mark 119 and the end of which is held by the operator. The head is attached to the top of the spindle 90 for turning with the front wheel, and the tail 120 may be operated from the spring motor by a cam 126 and follower 124. A toy car with stub axles and tie rod may be similarly operated or the steering may be fixed by attaching the string to a cleat on the body, a pointed bobbin carrying the remainder of the string being plugged into a suitable hole in the running-board. In Fig. 7, the control string is attached to a rod 156 simulating a radio aerial, movement being transmitted through rod 154 against the action of spring 162 to the front wheels.
Patent GB-730576-A (GB)
Title: Torque transmitting devices such as clutches or brakes
IPC: F16D25/04
Filed: 1952-04-28
Abstract: 730,576. Friction clutches. GENERAL TIRE & RUBBER CO. April 28,1952 [May 1, 1951], No. 10671/52. Class 80 (2). [Also in Group XXXIV] A pneumatically-operated clutch or brake of the type in which friction blocks on one member are moved radially into engagement with another member on inflation of a deformable annulus, is characterized by each block being mounted on a curved metal plate, the plates overlapping circumferentially and extending axially over the full width of the annulus to protect it from damage by hot particles abraded from the friction blocks. As shown, a clutch comprises relatively rotatable members A, B, the member A being connected to a flywheel I and carrying, in a channel comprised by side and bottom walls 3, 6 and 4, an inflatable rubber annulus 14 to the inner surface of which is secured a plurality of two-part metal plates 32, 33 as mountings for friction blocks 30. Each pair of metal plates is connected by spot-welding their right-angled flanges 34 together back to back to form a single flange, which is received in a corresponding groove 35 in the annulus. The edges of the plates 32, 33 extend circumferentially to overlap at 45 and axially at 38 to completely cover and extend beyond the inner face of the annulus. The annulus extends radially inwards beyond the side walls 3, 6 of the channel and is also extended axially at 23 to overlap the side walls. Gaps 25 are provided in the annulus adjacent to the side walls to allow it to expand freely. The plates 32, 33 are indented by grooves 48 which strengthen them against deformation caused by the heat generated between the two relatively rotatable members. Metal plates 17 are bonded to the outer surface of the annulus 14 and carry studs 18, projecting radially through apertures in the member A to receive nuts 19. In a modification, Fig. 4, an inflatable annulus H is bonded to an outer member 60 and to curved overlapping and axially extending metal plates 67 carrying friction blocks 69; the annulus may be moulded to shape in the ring 60 and plates 67 which are supported in other mould parts for this purpose. On the side walls of the annulus H are protective coverings 80 comprising woven heat resistant material of, e.g., asbestos cloth, secured to the annulus by self-curing rubber cement or the like. Specification 730,630 is referred to.
Patent GB-591090-A (GB)
Title: Improvements in and relating to fluid-proof electric switches
IPC: H01H13/02
Filed: 1945-04-27
Abstract: 591,090. Switches held set and freed mechanically. CONCORDIA ELECTRIC SAFETY LAMP CO., Ltd., and CORNISH, J. P. April 27, 1945, No. 10679. [Class 38 (v)] A liquid or gas-proof switch comprises terminal contacts, such as 14, 15, extending into the bore of its casing 1, a circuit-closing element, such as a ball 17, movable to engage the contacts, a spring-pressed plunger 9 acting always to move the element 17 from one limiting position to the other, a flexible diaphragm 20 across the bore of the casing sealing the element 17, contacts 14, 15, and the plunger 9 within the bore, and an operating element 19 adapted to press on the diaphragm to move the element 17 from one position to the other against the action of of the plunger 9. In Fig. 1, the operating element 19 has a helical groove 29 with recesses 28 engaged by a spring detent 27, so that on rotation, the element 19 moves to the left and bears against ball 17 through the diaphragm 20 to bridge contacts 14, 15. In a modification, the ball 17 permanently engages a strip contact 30 and moves between terminal contacts 14, 31. In other modifications, the ball may be replaced by a cylinder and it may be non-conducting with conducting inserts. In Fig. 5, the ball 45 permanently engages a contact 42 and is moved between two contacts 43, 44 by axial movement of part 52 caused by the interaction of faces 50, 51, on rotation of part 47.