baber/WOPTO huggingface dataset:
Patent GB-480961-A (GB)
Title: Improvements in or relating to sliding clasp fasteners and process and apparatus for the manufacture thereof
IPC: A44B19/40
Filed: 1936-09-02
Abstract: 480,961. Moulding sliding clasp fasteners. WINTERHALTER, M. Sept. 2, 1936, No. 24043. Convention date, Sept. 19, 1935. [Class 87 (ii)] [Also in Groups XXV and XXII] The elements 1 of a sliding-clasp fastener are moulded directly on one face only of the stringer tapes 2. The edge 3 of the stringer tape lies at the interlocking portion of the elements. The whole of each element and of the top stops is formed in one part 6 of a twopart mould, Figs. 4 and 5, the elements being formed in the shaped cavities 9 and the top stop in the cavity 10. A plunger 12 forces the moulding material from the chamber 11 into the cavities 9, 10. For a more secure fixing the elements have a rivet-like extension 14, 15, Fig. 2, through the tape, such extensions being obtained by needles 16 in the mould part 7 being pressed forward to perforate the tape and then returned to allow the moulding material to follow up. The interlocking parts merely consist of transverse grooves and projections across the whole of the element.
Patent GB-962397-A (GB)
IPC: B67B7/70
Filed: 1963-06-18
Abstract: 962,397. Can openers. E. KIMMERLE. June 18, 1963 [June 20, 1962], No. 24134/63. Heading B8D. [Also in Division F2] The traction wheel 5 of a can opener is rotated by a ratchet device in which a ratchet wheel 3 rigid with the wheel 5 is engaged by a pawl 9 formed by the end of a flat spring blade which is fixed at its other end to a channel section driving lever 14 pivoted for rocking motion about the axis of rotation of the wheels 3 and 5. A flat " T " shaped metal strip 4 passes through rectangular slots in the centres of the ratchet wheel 3, a disc 2, a shouldered disc 1, a spacing disc 6, and the traction wheel 5, and is riveted over at its end to hold these members in a rigid assembly. The members 3, 2, 1, and 6, may be of plastics material and members 3 and 2 may be integral. The disc 1 bears in a hole in the arm 16, while the lever 14 pivots on the disc 2, its movement being limited by engagement of a rib 10 thereon with a pressed portion 11 on the arm 17 at one extreme, and by engagement of a sheath 12, which may be of plastics material, of the lever 14 with the arm 16 at the other extreme. The invention may also apply to wall or table mounted can openers. Specification 877,118 is referred to.
Patent GB-673908-A (GB)
Title: Controlling means for a.c. induction motors
IPC: H02P5/747
Filed: 1949-09-21
Abstract: 673,908. Control of A.C. motors. SCARF, C. T. Nov. 6, 1950. [Sept. 21, 1949] No. 24208/49. Class 38 (iii). Electric hoisting or traversing means comprise two A.C. slip-ring induction machines which are mechanically coupled together and to a positive or negative load, either machine being arranged so that it can act as an ordinary A.C. slip-ring induction motor or, at will, as a D.C. excited A.C. generator for braking purposes, the arrangement being such that by varying the driving torque of either machine and/or the braking effort of the other, complete speed control of the hoisting or traversing means can be obtained against all values of load whether positive or negative. On the first hoisting notch of a master controller (not shown) contacts 1, 2, 3, 9, 10, are closed so that the A.C. supply-lines are connected to the stator terminals of motor M and direct-current is supplied to motor B, the resistors R1 R2, being adjusted to give the required low speed. The resistor R1 is then reduced, and afterwards the contacts 9, 10 are opened and contacts 6, 7, 8, are closed so that the motors operate to assist each other. On the first lowering notch D.C. excitation is supplied to motor B and the motor M is inactive. Thereafter, the motor M is made to exert a torque in the lowering direction, the resistor R1 being gradually reduced. Finally, the motor B is rendered inactive and motor M operated at its maximum speed, regenerative braking being obtained against heavy loads. The motors are not necessarily identical. The direct-current for the motor B is supplied through transformer T and rectifier R, and a brake winding H is provided.
Patent GB-1273274-A (GB)
Title: Improvements relating to contact breaker setting gauges
Inventor: HANCOX WILLIAM JOHN GANDERTON
IPC: G01B3/32
Filed: 1969-05-13
Abstract: 1,273,274. Points setting gauge. W.J.G. HANCOX. April 14, 1970 [May 13, 1969], No.24210/69. Heading G1M. A gauge for setting the points gap in the distributer of an internal combustion engine comprises a sleeve 5 which fits over the distributer cam 11 and has a portion 7 of uniform wall thickness for engaging the arm 13 of the movable contact 14. A feeler gauge 2 having a thickness equal to the sum of the desired gap and the uniform wall thickness 7 may be stored in the sleeve which is closed at one end. A plastic cap 3 is provided to close the open end. The sleeve may be of stainless steel or nylon.
Patent GB-339593-A (GB)
Title: Improvements in louvre shutters and ventilators and means for operating same
IPC: F24F13/15
Filed: 1929-08-08
Abstract: 339,593. Raxworthy, R. E. Aug. 8, 1929. Valves and valve apparatus.-A louvred ventilator or shutter comprises a series of louvres A<1> mounted on rods A<2> in a frame A<3>, the louvres being engaged by pins A<4> on sliding bars A<5> at each side of the frame. The bars A<5> are provided with slots B<2> engaging pins B<3> on the frame, and are connected by links B<1> to arms A<11> secured to a cross shaft A<8> which is provided with an operating-lever A<6>. The lever A' is held in adjusted position by a pin A<9> engaging a slot in a quadrant A<10> and secured by a wing nut. The louvres may The made of metal, asbestos, wood, or fibrous composition.
Patent GB-360088-A (GB)
Title: Improvements in compound internal-combustion engines
IPC: F02B41/06
Filed: 1930-08-14
Abstract: 360,088. Two-stroke engines. WHITE, A. E., 5, Quality Court, Chancery Lane, London.-(Doherty Research Co. ; 60, Wall Street, New York, U.S.A.) Aug. 14, 1930, No. 24338. [Class 7 (ii).] In a compound engine valves 52, 54 control the transfer of gases from the high pressure cylinder 10 to the low pressure cylinder 14 ; the transfer duct 56 is also used as the air admission passage, the flow being controlled by a valve 58. The air is supplied at the maximum pressure of the cycle by the chambers on the undersides of the two pistons acting as a two-stage air pump.
Patent GB-900151-A (GB)
Title: A process for the alkaline polymerisation of lactams
Inventor: DACHS KARL
IPC: C08G69/20
Filed: 1960-07-13
Abstract: A process for the polymerization of lactams having from 4 to 12 ring carbon atoms in the presence of an alkaline reaction initiator and a polymerization activator comprises using as the polymerization activator a substituted urethane which is capable of being dissolved undecomposed in the lactam at the polymerization temperature, having the general formula <FORM:0900151/IV(a)/1> where R1, R2 and R3 represent a hydrogen atom or a monovalent hydrocarbon radical having from 1 to 20 carbon atoms, which may be substituted by fluorine or ether groups, or in which R1 and R2 together represent a divalent acryl radical of the general formula -CH2-(CH2)n-CO where n is an integer from 3 to 11, X is oxygen, sulphur or > N-R4 wherein R4 is hydrogen or a monovalent hydrocarbon radical as defined above, or in which R1 has the meanings defined above and R2 and/or R3 represent the radicals <FORM:0900151/IV(a)/2> where Y is a divalent and X a trivalent hydrocarbon radical with from 1 to 20 carbon atoms, which may be substituted by fluorine or ether groups, and X, R1, R2 and R3 are as defined above.  Specified lactams are pyrrolidone, piperidone, caprolactam, oenanthic lactam, caprylic lactam and lauric lactam. Many activators are specified.  In the examples:- (1) caprylic lactam is polymerized in the presence of 1,6-hexamethylene-N,N1-bis-ethylurethane and a caprylic lactam-potassium hydroxide reaction product; (2) caprolactam is polymerized in the presence of potassium and 1-methyl-phenylene-2,4-bis-N,N1-benzylurethane and (3) caprylic lactam is polymerized in the presence of potassium and p,p1-phenylene-bis-N,N1-phenylurethane.
Patent GB-772928-A (GB)
Title: Improvements in or relating to bracing rings for masts
IPC: E04H12/32
Filed: 1955-08-25
Abstract: 772,928. Aerial and like masts. BERNARD, G. J. H. Aug. 25, 1955, No. 24412/55. Class 20(1) A bracing ring, for a rotatable mast built up from a plurality of interfitting sections, comprises a sleeve 1, 3 which can be gripped on to an outer section 15 of the mast to contract it on to a complementary inner section 16 where these interfit, and, integral with or secured to the sleeve, a co-axial circular plate 6 with a rotatable rim 9 to which bracing wires or the like may be secured. The sleeve comprises members 1, 3 with pairs of lugs 2 and 4, respectively by which they are secured together with nuts 5<SP>1</SP> and bolts 5. Plate 6 has a groove 7 in its outer edge which with rim 9, formed by two rings secured together, encloses ball bearings 8. Holes are provided in rim 9 for guy wires or the like and an aperture is provided in plate 6 for the aerial lead.
Patent GB-338507-A (GB)
Title: Process for the manufacture of anhydrides of organic acids
IPC: C07C51/56
Filed: 1929-08-09
Abstract: 338,507. Elkington, H. D., (Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij). Aug. 9, 1929. Anhydrides of aliphatic acids are obtained by heating aliphatic monobasic acids in admixture with monoketones, excluding ketene, or with substances, other than aliphatic acids, which of themselves form monoketones under the conditions of the reaction. Suitable temperatures for the reaction are about 600-700‹ C., and ordinary, reduced, or increased pressures may be employed. The reaction may be carried out By passing the initial materials through a heated tube of porcelain, quartz, yellow brass, or other suitable material. Catalysts comprising copper, yellow . brass, or aluminium sulphate, and filling materials such as crushed porcelain, kieselguhr, or pumice may be present. Examples of substances forming monoketones are isopropyl alcohol, which forms acetone, secondary butyl alcohol, which forms methylethylketone, propylene oxide, which forms acetone and propionaldehyde, and methylacetate, which forms acetone and dimethylether. When solid ketoneforming substances such as sodium or calcium acetate are used, these may be caused to move through the reaction tube by means such as a screw conveyer. Examples are given describing the production of acetic, anhydride from mixtures of acetic acid with acetone and with some of the ketone-forming substances mentioned above, and of butyric-acetic anhydride and some butyric anhydride from a mixture of butyric acid and acetone.
Patent GB-149546-A (GB)
Title: Improvements in and relating to step ladders
IPC: E06C1/16
Filed: 1919-10-08
Abstract: 149,546. Morgan, J. E. Oct. 8, 1919. Ladders.-A cross-piece d on the back-stay abuts against a piece c on the ladder, on which tapered pieces a are fixed to take the sides b of the baok-stay when extended. The piece c extends beyond the sides of the stay so that no iron fittings are needed to prevent separation.
Patent GB-223906-A (GB)
Title: Improvements relating to vane or paddle mechanism or the like
IPC: B63H1/30
Filed: 1924-10-16
Abstract: 223,906. Kulmer, M. Oct. 24, 1923, [Convention date]. Fans. - In apparatus operated by a current of gaseous or liquid medium or for causing a flow of the medium, a crank 2 is connected to a link 3, one end of which is rectilinearly guided, and carries a pivoted blade 5 having arms differing in length, area or weight. Stops 8, 9 are provided, with or without abutments 6, 7. The blade may be adjustably mounted in a slide on the link 3 so that its movement may be reversed
Patent GB-290093-A (GB)
Title: Improvements in splash preventing devices for road vehicles
IPC: B62D25/18
Filed: 1927-09-19
Abstract: 290,093. Betts, H. J., and Fowler, E. J. A. Sept. 19, 1927. Lateral-splash guards comprise a curtain 1 depending from a horizontal frame 4 adjustably secured by a bolt 7 to a vertically slotted bar 9 depending from a member 10 mounted by ball and cone bearings 13 - - 15 on a pin 11 passed through the hub cap 5, which is held between a head 12<a> and nut 12 on the pin. The bolt 7 may pass through a horizontal slot 6 in the frame 4 so that if the bolt 7 is not at the centre of the slot 6, the frame will hang in an inclined position. The curtain 1 of chain mesh has some of its upper links engaged with a rod 2 supported in studs 3 on the frame 4.
Patent GB-792230-A (GB)
Title: Improvements in or relating to processes for the separation of solid particles from gases or vapours
IPC: B04C5/14
Filed: 1955-08-29
Abstract: 792,230. Centrifugal separators. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Aug. 29, 1955 [Aug. 31, 1954], No. 24721/55. Class 23 In an apparatus comprising a separating chamber 1 having a tangential inlet 2 and an axial gas outlet 6¢, solid particles are discharged from the chamber through an outlet 3 to a bunker 4 provided with a discharge pipe 5. The outlet 3 may consist of a slot formed by bending part of the chamber wall, or it may be formed by a wall panel which pivots about a central longitudinal axis. Specification 789,228 [Group III] is referred to.
Patent GB-828531-A (GB)
Title: Improvements relating to photographic printing apparatus
Inventor: BURNS LAWRENCE
IPC: G03B27/22
Filed: 1954-12-25
Abstract: 828,531. Photographic printing apparatus. WENDER, E. J. March 26, 1866 [Dec. 25, 1954], No. 24779/54. Class 98(2) A rigid transparent curve or cylinder 15 with internal light source 11 has a resilient pressure blanket 16 formed mainly of a natural curvature of greater redius than that of the curve or cylinder secured at one end against or adjacent the outer surface thereof and provided at its other end with fastening means such as a rod with projecting ends 18 to engages,catches 19 and hold the blanket and, when present. copy material against the curve or cylinder. When the latter is used it may be carried by uprights 13 provided from a base 10, the uprights being preferably formed as reflectors for uniformity of exposure at the edges of the prints. The blanket 16 may be of metal for example aluminum alloy and may have resilient lining 21 as of foamed elastic material. A timing switch 12 as of Specification 828,532 [Group XXXVII] may be mounted on the base.
Patent GB-811313-A (GB)
Title: Improvements relating to automobiles
IPC: B60J11/00
Filed: 1955-08-30
Abstract: 811,313. Vehicle hoods. VINEY, J. Oct. 18, 1956 [Aug. 30, 1955], No. 24856/55. Class 108(1) A cover C for a motor vehicle is stowed on a roller mounted in a casing 1 which may be secured to or constitute the rear bumper. The roller may be spring loaded or it may be rotated by an integral hexagon extension 4 preferably of such a size as to be operable by the wheel brace.
Patent GB-322436-A (GB)
Title: Improvements in bags
IPC: A45C15/06
Filed: 1928-08-30
Abstract: 322,436. Freeman, S., and Okrent, P. Aug. 30, 1928. Battery lamps combined with hand bags. -A hand bag is adapted to be illuminated by means of an electric lamp set in the lining, behind which all the connecting wires are concealed. Fig. 1 shows the arrangements at the back of the lining, the battery f being connected to the lamp g through a switch mounted on a piece of ivorine a, and consisting of a " jewel case '' catch with prongs h, h<1> and a paper fastener b, the exposed face of the switch being shown in Fig. 2. Reference has been directed by the Comptroller to Specifications 183,773 and 220,886.
Patent GB-897091-A (GB)
Title: Gas turbine engine fuel system
Inventor: JOHNSON CHRISTOPHER LINLEY
IPC: F02C9/34
Filed: 1959-07-20
Abstract: 897,091. Gas turbine plant. ROLLS-ROYCE Ltd. July 13, 1960 [July 20, 1959], No. 24905/59. Class 110 (3). [Also in Group XXIX] The fuel supply to a gas turbine engine is controlled by a manually-operated throttle valve 36 and a speed-responsive valve 24 which limits the fuel flow during acceleration to prevent surging of the compressor and also serves as a maximum speed governor. The valve 24 which is loaded by an adjustable spring 74 and is rotated through gearing 20, 21, 22, 23 by an engine-driven shaft 13, is subject on its left-hand end to the delivery pressure of an engine-driven impeller 14 transmitted through a passage 28 and on its other end to the impeller inlet pressure. The valve 24 is shown in the idling position in which fuel delivered by the impeller is enabled to pass from a passage 41 through a port 31 and a restricted port 39 to a by-pass passage 35 and through a port 33 to a main burner passage 40. Should the throttle valve 36 be positioned to close a main burner port 60 fuel will pass only through the by-pass passage 35 and bore 56 in the valve 36 to a conduit 40<SP>1</SP> leading to the main burners and directly from the passage 41 to conduits 37, 65 leading to the pilot burners whereby the engine remains in idling condition. If the throttle valve is moved further to the left the main burner passage 40 is vented to a conduit 62 and the pilot burner conduit 65 and by-pass passage 35 are connected to a dump line 67. When the throttle valve is in the fully open position shown, fuel flows to the main burner conduit 40<SP>1</SP> through the passage 40 and through the by-pass passage 35 and bore 56, and also to the pilot burners. As the engine accelerates the valve 24 is moved to the right until, at 60% of maximum speed, a land 27 will have closed the by-pass passage 35 and an abutment 70 will have come into engagement with a plate 78 loaded by an additional adjustable spring 79. Subsequent movement of the valve 24 will open further ports 34 leading to the main burner passage 40 and finally, as goverened speed is approached, the land 27 will close the port 31 so that the flow to the main burners is limited by the restricted port 39. The arrangement provides a constant ratio of fuel flow to engine speed up to approximately 46% of maximum speed, then a falling value of this ratio up to about 54% followed by a constant ratio again up to about 65% after which the ratio increases until at about 85% it remains constant. At about 97% of maximum speed the ratio falls sharply as the maximum speed-governing action becomes effective. Acceleration time may be varied by adjusting a maximum throttle opening stop (not shown). Means, such as a needle valve in the conduit 40<SP>1</SP>, may vary the maximum effective throttle opening with variation of compressor inlet pressure. Also, the spring 79 may be adjusted in accordance with compressor inlet pressure or temperature. The pressures applied by the impeller 14 to the ends of the valve 24 may be adjusted to compensate for varying fuel density.
Patent GB-1173358-A (GB)
Title: Method and Apparatus for Data Processing
Inventor: LEE BURTON D
IPC: G01V1/36
Filed: 1967-05-30
Abstract: 1,173,358. Processing seismic data. TEXACO DEVELOPMENT CORP. 30 May, 1967, No. 24942/67. Heading H4D. For enhancing seismic reflexion signals an output signal is not produced when two or more seismic signals are of unlike polarity. Signals 1 to 7 from a recording which has been corrected for static and dynamic errors are connected as shown to isolation amplifiers feeding into resistor networks, e.g. R 1 , R 2 , R 3  to afford signals A, B, C, I), E; signals A, B, C, D are combined at point H and signals B, C, D, E at the common point of resistors 61 ... 64. The outputs of switches 123, 136 are fed to a recorder 130. If all resistors in a set are equal, a " tapered mix " ensues but a uniformly weighted " mix " may be arranged. Points A ... E are connected to respective amplifierclippers 72 ... 76 which feed into coincidence circuits 91, 92, 102, 103; for example if circuits 72... 76 all give positive outputs, circuit 91 produces an output and similarly for circuit 102; circuits 92, 103 give an output signal if all their inputs are negative. Outputs, via OR circuits 114, 131 actuate respective switch drivers 118, 134. The coincidence and OR circuits consist of appropriately-poled diodes, a switch driver is a two-triode monostable trigger circuit, and a switch is a diode bridge, Fig. 2 (not shown). An amplifier-clipper may comprise a D.C. amplifier connected at its output to the mid-point of a voltage divider the ends of which are connected to the D.C. amplifier input via oppositely-poled diodes, Fig. 3 (not shown). Alternative apparatus utilizes a digital computer, the input waveforms being quantized into digital representations, Fig. 4 (not shown). Waveform illustrations of the processing are given, Figs. 5, 6, 7 (none shown).
Patent GB-622833-A (GB)
Title: Improved crankshaft grinding machine
Inventor: MIESSE JULES
IPC: B24B5/42
Filed: 1946-08-21
Abstract: 622,833. Grinding crankshafts. MIESSE, J. Aug. 21, 1946, Nos. 24952 and 24953. Convention dates, Sept. 29, 1945, and July 3, 1946. [Class 60] A machine for grinding crankshafts comprises a base having rotatably mounted thereon a horizontal drive plate for centering and fixing the crankshaft to be ground while the latter is in the vertical position, the said base supporting a standard provided with a slideway, a carriage balanced by a counterweight being adapted to slide along the said slideway, the said carriage carrying a grinding mechanism suspended for oscillatory movement. The flange on the lower end of the crankshaft 18 is bolted to a rotary chuck plate 16<SP>1</SP> which can be locked to a plate 16 guided in a diametrical groove 17 in a diametrical groove 17 in a horizontal rotary plate 3 driven through a belt 5 by a motor 7 adjustably mounted so as to tension the belt. The axial bore in the upper end of the crankshaft is engaged by a centre 21 carried by a vertically-adjustable headstock 20. A steady rest 27 is carried by a vertically adjustable member 25. Movable on a vertical slide 11 is a carriage 12 balanced by a counterweight 13; the carriage has a tube 28 on which slides a sleeve 29 rigid with a bracket 30 carrying a grinding wheel 34 and its driving motor 31. By rocking the sleeve about the tube the grinding wheel can be disengaged from the work, and caused to engage it progressively. The grinding wheel is urged against the work by a spring 63, Fig. 5, terminating in a pawl 66 engaging a rack 67 secured to the bracket 30; the pawl can be disengaged from the rack by operation of a lever 71 to permit retraction of the sleeve 29. A shaft 54 slidably mounted in the bracket 30 engages a stop 55 on the carriage 12; the shaft is adjusted by a nut 59 non-slidably journalled in the bracket 30 and rotatable by worm gear 60 operated by a knob 62. Vertical displacement of the carriage 12 on the slidway 11 is effected by a hand crank 49 operating a shaft 75 carrying a worm 76 engaging a pinion 50 integral with a pinion 52 co-operating with a rack 53 on the standard 10. The shaft 75 can be rocked about a pivot 79 to disengage the worm 76 from the pinion 50. Vertical displacement is then effected by means of a hand crank 77 on a shaft 51 carrying the pinions 50, 52. When it is desired to grind the crank pins, the plate 16 is adjusted in the slot 17 until the chuck plate 16' is eccentric to the plate 3 by an amount equal to the throw of the crank, the upper end of the crank shaft being supported by one end of an arm, adjustable in length to be equal to the throw, the other end of the arm engaging the centre 21.