baber/WOPTO huggingface dataset:
Patent GB-686239-A (GB)
Title: Improvements in hot-gas reciprocating engines and refrigerating engines operating on the reversed hot gas reciprocating engine principle
IPC: F02G1/05
Filed: 1949-06-29
Abstract: 686,239. Refrigerating. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 29, 1949 [July 2, 1948], No. 17238/49. Class 29 [Also in Group XXVII] The invention relates to hot gas engines and refrigerating engines. A valve 9 which controls communication between a cold space 5 and either a control space 12 or a starting space 13 according to the position of cocks 14, 15 is operated by a cam 18 on the engine shaft and is opened periodically at the moment when the engine pressure is at its highest value. A separate starting device is not required since starting by compressed air will be possible through the communication means which serve for controlling the power output. Specification 9895/47 (as open to inspection under Sect. 91) is referred to. The Specification as open to inspection under Sect. 91, states that the invention can be carried out by means of slides and cocks. This subject-matter does not appear in the Specification as accepted.
Patent GB-184646-A (GB)
Title: Control of electrically propelled vehicles
IPC: B60K1/00
Filed: 1921-06-23
Abstract: 184,646. Pattison, M. J., and Electro- Mechanical Brake Co., Ltd. June 23, 1921. Interlocking and guarding against wrong movements and the like.-In a control device for an electrically-propelled trolly or other vehicle comprising a switch in the main circuit mechanically interconnected with the brake so that the circuit is broken on the application of the brake, the switch being locked in its open position unless the controller is at zero, the switch and brake are interconnected by a spring arranged to be tensioned both on the application and release of the brake in so far as the circuit-breaker does not immediately conform to the movement of the brake. The switch comprises a drum section 1 carrying a contact 2 and operated by the engagement of a stud 8 with the ends 6 of a coiled spring on the pivot of a lever 4 connected by a link 5 with the brake mechanism. On the operation of the brake, which may be effected by the driver leaving the platform, the drum section 1 is rotated to open the switch and a spring or gravity catch 9 engages a notch 10 unless prevented by a trip 11 which, in the zero position of the controller, engages the catch 9, as shown. Ratchet teeth are provided on the circumference of the drum section 1 and are engaged by spring detents actuated to release the drum section by a cam on, the arm 4. The arm may be interconnected with a " dead man's " pedal instead of the brake.
Patent GB-384583-A (GB)
Title: Improvements in or relating to superheterodyne receivers
IPC: H03D7/08
Filed: 1932-06-18
Abstract: 384,583. Valve circuits for wireless reception. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. June 18, 1932, No. 17304. Convention date, June 25, 1931. [Class 40 (v).] In a superheterodyne receiver, the degree of coupling of the local oscillator 5 to the rest of the receiver is dependent on frequency in the opposite sense to the normal amplitude variation of the local oscillations at the grid of the detector 9. The oscillator consists of a valve with inductive back-coupling 6 and capacitative coupling 3 to the anode circuit 2 of a high-frequency amplifier 1.
Patent GB-1377761-A (GB)
Title: Bituminous paving slab
IPC: E01C7/26
Filed: 1974-05-13
Abstract: 1377761 Laminated paving slab BPB INDUSTRIES Ltd 13 May 1974 17346/71 Heading B5N [Also in Division B2] A paving slab is formed of a bituminous composition consisting of bitumen reinforced with ethylene-vinyl acetate copolymer and of mineral filler (such as limestone, slate or pulverized fuel ash), the composition being faced to provide a wearing surface over at least the upper face in use. The composition may comprise additional reinforcement of asbestos or glass fibres or chopped scrap bitumen felt. The wearing surface may be of chippings or granules or thin sheet material such as bitumen-impregnated glass or asbestos felt which may be provided on both faces of the slab. The slab may have a backing of sheet asbestos, consolidated plastics foam, fibre board or compressed rotproof paper.
Patent GB-455154-A (GB)
Title: Improvements relating to trolley poles for electrically propelled road and other like vehicles
IPC: B60L5/12
Filed: 1935-06-17
Abstract: 455,154. Trolly poles of electric vehicles. ACCLES & POLLOCK, Ltd., and HENDERSON, L. B., Paddock Works, Oldbury, Birmingham. June 17, 1935, No. 17359. [Class 104 (iii)] A trolly pole comprises a plurality of parts a, b of different diameters, the adjacent ends of which are connected by a rubber bush or sleeve c. The sleeve c may be in two parts separated by a metal piece e fixed to the polepieces a. The piece e has a curved inner surface adapted to rock on the outer surface of a metal collar d fixed to the polepiece b. The sleeve c is fixed against longitudinal movement by collars g, h.
Patent GB-186670-A (GB)
Title: Means for preparing, transmitting and recording messages, particularly applicable totelegraphy
IPC: H04L25/49
Filed: 1921-06-24
Abstract: 186,670. Baronio, A. C. June 24, 1921. Electric machines for coding; ink-ribbon mechanism.-In a method of telegraphy in which each character is built up of two elements representing a consonant and vowel, each element is determined by the position of a single impulse in a pair of time units (a time unit being a single feed perforation in the tape) and also by the strength of the impulse. Each character in the code is composed of two elements representing a vowel and consonant determined by the position of the elements with respect of the feed perforations and by the presence or absence of an additional " extra power " perforation. Eacn character may have any meaning assigned to it in the message, this meaning being indicated in known manner by sending one of the signals Pr Ar, PrEr &c. The receiver is arranged to perforate or emboss slip and to print the consonant or vowel corresponding to each impulse received in a different colour for normal and extra power impulses. The apparatus comprises four type. levers 40, Fig. 8, each provided with a consonant and a corresponding vowel, mounted on a carriage arranged to be reciprocated alternately backwards and forwards with each feed movement of the tape. The type-levers are operated through rods 43 and cranks 44 by the corresponding punch-actuating rods. A bi-coloured ribbon moves in guides carried by a frame 45 which is adapted to be shifted through levers 46, 47, 48 by a stud 49 operated by the " extra power " punches so as to cause the printing to be done in a colour different from that corresponding to normal power impulses. According to the Provisional Specification the levers for operating the type bars may be capable of movement to an inoperative position.
Patent GB-1029500-A (GB)
Title: Rolling mill structures
Inventor: KALBERKAMP HERMAN JOSEPH
IPC: B21B31/10
Filed: 1964-04-22
Abstract: 1,029,500. Rolling. MESTA MACHINE Co. April 27, 1964, No. 17431/64. Heading B3M. A four-high rolling mill stand comprises a pair of housings 10 for supporting the mill rolls, the working roll chocks 22 and 25 being supported by guides 12 which extend inwardly into the housing windows 11. The chocks 22 and 25 and the lower back-up roll chock 15 are held in position by power-operated clamps 28, while the upper chock 13 is held by a clamp 19. Fingers 20 and 23 on the chock 22 co-operate with the chocks 25 and 15 to axially restrain all three chocks relative to each other while allowing relative vertical movement between them. For roll changing, a sled 17 (Fig. 1, not shown), situated beneath the chock 15 and attached to a rack 30, is driven by a pinion 31 transversely of the stand to remove the working rolls and the lower back-up roll as a unit.
Patent GB-686919-A (GB)
Title: Improvements in longwall mining machines
IPC: E21C27/02
Filed: 1950-07-13
Abstract: 686,919. Endless-chain mining-machines. ANDERSON, A., and ANDERSON, BOYES & CO., Ltd. Aug. 27, 1951 [July 13, 1950], No. 17612/50. Class 68(i) A long wall mining machine comprises a base frame 1 on the leading end of which is mounted a shearing chain cutter jib 4, whilst a gear head 2 and a pre-undercutting chain cutter jib 3 that extends outwards beyond the plane of the shearing jib are located on said frame 1 rearwards of said shearing jib. Loading means are provided consisting of an oscillatory lever 5 equipped with claw means at one end and at the other fulcrummed on a swing lever itself pivoted at 8 on the machine frame 1, the lever 5 being oscillated by an eccentric or a crank 9 connected to said lever intermediate the ends. A pre-overcutting jib may be provided. The machine' is advanced by a doubleacting fluid pressure cylinder 12 containing a piston connected to an. extensible prop 14.
Patent GB-545667-A (GB)
Title: Improvements in or relating to brakes for vehicles
IPC: B60T13/16
Filed: 1940-12-16
Abstract: 545,667. Hydraulic brakes. AUTOMOTIVE PRODUCTS CO., Ltd., and CHOUINGS, L. C Dec. 16, 1940, No. 17746. [Class 103 (i)] A vehicle braking system comprising a hydraulic master-cylinder 12, having a piston 11 for actuating the brakes 13 and which is operated by the liquid pressure of an enginedriven pump 26 upon the closing of a valve by the action of the driver upon a pedal 37, has a longitudinally-apertured plunger 16 co-axial with the piston 11 and through which the pump-driven liquid passes freely back to the reservoir 27 until the valve formed by the end of a spigot 33 upon the back of the piston 11 seating upon the adjacent coned end of the plunger aperture 28 is closed so that the pump builds up pressure behind the piston 11. In a modification the valve is constituted by a cone formed on the end of a pedal-operated auxiliary plunger and seating in a coned aperture of the plunger. In a further modification means comprising a one-way valve are provided for furnishing an additional supply of liquid to aid the action of the pump upon a sudden brake application.
Patent GB-993220-A (GB)
Title: Production of detergent alkylate
Inventor: OLDHAM WILFRED JOHN
IPC: C07C2/10
Filed: 1963-05-06
Abstract: Detergent alkylates are prepared by dimerizing a straight chain C5-C8 mono-olefin in the liquid phase in presence of a synthetic petroleum cracking catalyst and condensing the C10-C16 carbon number range fraction of the dimerization product with benzene in the presence of an alkylation catalyst.  The starting materials may be obtained by cracking paraffins, dehydrogenating paraffins and polymerization of lower olefines.  Specified synthetic petroleum cracking catalysts are silica-alumina preferably containing 70% to 90% by weight of silica, silica-magnesia, silica-zirconia and silica-boria and there catalysts may be activated or reactivated by heating in air or an inert gas e.g. nitrogen to 350 DEG  to 650 DEG  C. The dimerization reaction is carried out at temperatures below 150 DEG  C. and pressures of 20 to 500 p.s.i.g. Flow rates of 0.1 to 10 volumes of liquid olefin per volume of catalyst are used.  The required C10 to C16 olefin fraction may be separated by fractional distillation, any C5 to C8 olefines being recycled to the dimerization step, and then condensed with benzene in presence of a suitable alkylation catalyst e.g. aluminium chloride or anhydrous hydrogen fluoride at - 20 DEG  to + 100 DEG  C. in the liquid phase.  The examples describe the dimerization of hexene and subsequent condensation of the dimer with benzene.
Patent GB-1442464-A (GB)
Title: Charge-coupled devices
IPC: H01L29/768
Filed: 1974-04-24
Abstract: 1442464 Semi-conductor devices WESTERN ELECTRIC CO Inc 24 April 1974 [27 April 1973] 17820/74 Heading H1K A buried channel CCD includes a semiconductive charge storage layer 18 overlying a substrate 20, an insulating layer 33 overlying the storage layer 18, and electrodes 31, 32 overlying the insulation 33 and defining a charge transfer path, wherein application of twophase voltages V 1 , V 2  to the electrodes 31, 32 causes the formation of asymmetric potential wells internal to the storage layer 18, such that charges propagate unidirectionally in response to the voltages V 1 , V 2 . The asymmetry may be due to the use of a stepped oxide insulation 33 or to non-uniform distribution of dopant in the layer 18, formed by selective ion implantation, in addition to the stepped insulation 33. The direction of propagation of charges in this buried channel CCD is opposite to that of a surface channel CCD.
Patent GB-589240-A (GB)
Title: Improvements in electric discharge lamps
IPC: H01J61/86
Filed: 1944-09-18
Abstract: 589,240. Discharge lamps. GENERAL ELECTRIC CO., Ltd., FRANCIS, V. J., and NELSON, E. H. Sept. 18, 1944, No. 17825. Addition to No. 579,375. Drawings to Specification. [Class 39 (i)] A high power, high-pressure lamp, as described in the parent Specification in which the cathode and a cluster of anodes are disposed on opposite sides of a plane, so that each anode has an uninterrupted view of the cathode, contains, during normal operation, an atmosphere consisting of, or mainly consisting of permanent gas. If the atmosphere is not wholly a permanent gas, the partial pressure of condensible vapour in the said atmosphere when the lamp is in normal operation is less than 200 millimetres. If each anode has its own lead through the envelope, a multiple stripseal of the kind described in Specifications 489,534, [Group XXXVI], 489,626 and 489,630 is used.
Patent GB-118755-A (GB)
Title: Improvements appertaining to Cloth Milling or Fulling or like Machines.
Inventor: BROOK THOMAS ASHWORTH
IPC: D06B23/00
Filed: 1917-12-03
Abstract: 118,755. Brook, T. A., Hirst, H. H., and Waddington, D. A. Dec. 3, 1917. Fulling and milling. - The mouthpiece through which the fabric passes in rope form directly to the fulling-rollers is provided with laterally-movable, pivoted, or hinged adjustable yielding jaws forming the side walls of the mouthpiece, the floor and roof being formed by fixed cross bars or boards. In the form shown in Figs. 1 and 2, the jaws a, b are pivoted on pins o carried on rods m connected by bars l to rods g having plungers g<1> movable in fixed barrels h. Springs j, adjusted by bushes i in the barrels, keep the jaws in their innermost position, but allow them to yield under abnormal pressure. The distance between the jaws is adjusted for different qualities of fabric by nuts k and lock-nuts k<1> engaging screwed portions of the rods m, g. The front or front and rear edges of the jaws are provided with cut-outs, into which are inserted reversible blocks r of metal, india-rubber, earthen. ware, or other hard-wearing material. In a modification, the width between the jaws is adjusted by rotating the barrels along screwed rods engaging nipples in the ends of the barrels. In another modification, the jaws a, b are hinged to the mouthpiece instead of on the pins o. In the form shown in Fig. 6, the jaws a, b are secured to cross-heads s<1> drawn inwardly by springs j connected at their ends to screwed rods j<1> adjustably mounted in the cross-heads. In a modification of the arrangement shown in Figs. 1 and 2, more than one pair of jaws are provided, the jaws are adjusted inwardly or outwardly simultaneously by a single lever or hand-wheel, and the tension of the springs in the barrels is similarly adjusted. In the form shown in Fig. 9, one barrel h contains two springs j and two rods g, which are connected to the jaws a, b. The plungers g' on the ends of the rods g are provided with wedge or cam surfaces so that they can be adjusted by a wedge or a rotatable cam-block x secured in adjusted position by a lock-nut x'.
Patent GB-573419-A (GB)
Title: Arrangement for automatic change of records in gramophones
IPC: G11B17/16
Filed: 1943-10-28
Abstract: 573,419. Magazine gramophones. FALK, S. G. Oct. 28, 1943, No. 17846. [Class 40 (ii)] In a magazine gramophone, records 8 to be fed to the turntable are stacked on a lever 4 pivotally mounted in the hollow spindle 3 with the lower end of lever 4 projecting from the end of the spindle which extends through a fixed sleeve 2 about which the turntable 1 rotates. The upper part of lever 4 forms a continuation of spindle 3. The lowermost record in the stack is fed to the turntable by rocking lever 4 by engagement with its lower end thus carrying all the records except the lowermost over the upper end of spindle 3, the lowermost record being prevented from moving by engagement with the end of the spindle and dropping as soon as the lever 4 has moved far enough. In another form, the upper part of lever 4 is bent, and edge support is provided for the records in known manner.
Patent GB-145685-A (GB)
Title: Improvements in and relating to machines for making tires
IPC: B29C37/02
Filed: 1918-10-14
Abstract: 145,685. Goodyear Tire & Rubber Co., (Assignees of Harsel, W. B., and Nall, E. A.). Nov. 3, 1917, [Convention date]. Vertical-cutter type for cutting in direction of feed.-Relates to tyremaking machines of the kind described in Specifications 120,563 and 120,564, [both in Class 144 (i), Wheels &c.], in which plies of fabric are wound on a rotating core, and consists in means for trimming the surplus fabric at the edges of the beads after the application of each ply. For this purpose, a pair of knives 149 are carried by swinging arms 140 which are connected by links 152, 154, 155 to a treadle 156. This mechanism is carried by a plate 139 pivoted between side brackets 137 to admit of being swung clear of the mandrel, as shown in Fig. 2. A curved plate 160 serves as a guide for the treadle, and prevents actuation thereof until the swinging of the plate 139 brings the treadle over the slot 161. The knives are clamped to blocks 142 pivoted to the arms 140 on bolts 144, and are set in adjusted positions by the bolts 146. The knives may also be adjusted for wear by means of set-screws 151.
Patent GB-864375-A (GB)
Title: Stop motion for the working spindles of multiple-spindle automatics
IPC: B23B7/10
Filed: 1957-06-06
Abstract: 864,375. Friction clutches. SCHUTTE, A. H., COMMER, G., WELCKER, L., THEN, E., and PECHMANN, VON E. F., [trading as SCHUTTE, A. H., [Firm of]]. June 6, 1957 [June 22, 1956], No. 18044/57. Class 80 (2). [Also in Group XXII] A multi-spindle automatic lathe has workspindles 13, Fig. 3, arranged in an indexible drum 12 and normally driven from a central shaft 14 by gearing 15, 16, and dog-clutch parts 17, 18. When it is desired to stop one or more spindles the appropriate dog-clutch sleeves 18 are moved to the left to engage the clutch parts 35. After a slowing-down movement described below latches 20 engage recesses 21 in the sleeves 18 to stop the required spindles in predetermined positions. The transmission for slowing down and stopping the spindles is common to all the spindles and arranged centrally of the spindle drum in a casing 23, 24. A cylindrical extension of the casing 24 supports a control sleeve 25 which is moved to operate the spindle-stopping mechanism by one of a number of levers 26 which are arranged around the spindle drum intermediate the work spindles 13, Fig. 2. Each time the drum is indexed one of the levers passes within the operating portion of a cam 45 which, when one or more spindles is or are to be stopped, is moved axially by a cam drum 47 and lever 48. The control sleeve 25, Fig. 3, also moves a rod 30 which is connected to a sleeve 28 for operating levers 27 controlling a clutch 29. When the work-spindle in the desired stopping station has its dog clutch 18 moved to the left the normal spindle drive is disconnected and connection made to a slightly slower drive through casing 32 and gears 33, 34, controlled by clutch 29. Further movement of sleeve 25 operates a brake 39 to stop the rotation and then the end 40 of sleeve 28 engages a slip clutch to rotate the spindle at a very slow speed through planetary gears 42-44. Finally, the locking catch 20 engages a notch 21 in a fixed position of the clutch 18 to hold the spindle.
Patent GB-541165-A (GB)
Title: Improvements in control arrangements for gas blast circuit breakers
IPC: H01H33/32
Filed: 1940-12-23
Abstract: 541,165. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 23, 1940, No. 18046. Convention date, Dec, 22, 1939. [Class 38 (v)] A pneumatically-actuated gas-blast switch has a plurality of pistons for operating the movable contact, fluid under pressure being supplied to one side of each piston for actuating the contact to open position, to the opposite side of one piston during the contact-opening movement so as to retard the opening movement and to the opposite side of another of the pistons for actuating the contact to closed circuit position. Fig. 2 shows the invention applied to the switch of Specification 544,017, in which the blast-conduits 16 of the phases are supplied from a tank 17 through a manifold 20, and the movable contacts (not shown) are slid by means of arms 22 secured to flanges 23 on a common shaft 21. Further flanges 31, 32 on shaft 21 are connected through rods 29, 30 with pistons 27, 28 in cylinders 35, 36. A pipe 37 leads from tank 17 to a cylinder 39 in which is a double piston 40 operated manually or by solenoid, and centred by springs 41. Pipes 42, 43 lead from one end of the cylinder 39 to the "opening" side of the pistons 27, 28, whereas a pipe 44 leads from the other end of the cylinder to the "closing" face of piston 28. The cylinderends also have vents to atmosphere 45, 46. For retarding the opening movement, a pipe 47 leading from the manifold 20, conducts gas at a considerably-reduced pressure as compared with the operating pressure, to the "closing" face of piston 27, the connection including an elbow 48 in which is a check valve normally biassed closed by a spring and having a number of small openings to provide for slow escape of the gas as the opening movement terminates, Fig. 4 (not shown). The flanges 31 are adapted to open the blast valve through a rod 52 and mechanism 34 as described in Specification 544,017 the arrangement being that a blast is supplied during opening and closing of the switch, and through independent parts of the mechanism 34, (Fig. 3 (not shown). The closing movement may be cushioned without impairing the speed of opening, by means of check valves in pipes 42, 43 similar to that in elbow 48. The Specification refers also to opening of the valve 38 in response to abnormal circuit conditions and to repeated closures within short intervals.
Patent GB-298586-A (GB)
Title: Improvements in or relating to cam-actuated valves
IPC: F16K31/52
Filed: 1927-07-07
Abstract: 298,586. Dent & Hellyer, Ltd., and Hellyer, R. H. July 7, 1927. Actuating - mechanisms; multiple-way valves.-A self-closing lift valve is .operated by a cam on a rotary stem lying transversely to the direction of lift, the cam being pivoted eccentrically on the stem and rotatable relatively thereto to vary the throw by primary and secondary adjusting means, each of limited range. As applied to controlling means for geysers &c. of the kind described in Specification 270,392, [Class 37, Electricity, Measuring &c.], the adjustable cam 21 is housed in a recess 19 in an extension 17 of the stem of the gas supply cock 14 and serves to lift the water supply valve 116 when the gas is turned on, the amount of lift being regulated by the cam adjustment. The cam is secured to or integral with a spindle 20 eccentrically mounted in the stem 17 and terminating at its outer end in an adjusting handle 40. A boss 27 carries a spring-pressed ball or detent 29 adapted to engage, one of a series of pockets &c. 24, 25, 26 in a plate 22 formed with a semicircular slot 23 in a portion of reduced thickness and adjustably secured to the stem-end by one or more headed screws 30, 31 passing through the slot. The handle 40 is adjustable on the spindle, its hub being serrated and held in engagement with the boss 27 bv a nut 41. When the cam is integral with the spindle 20, the end of the stem 17 beyond the recess 19 is a separate part secured to the main stem by the screws 30, 31 which would be of sufficient length to pass therethrough.