baber/WOPTO huggingface dataset:
Patent GB-280575-A (GB)
Title: Complete automatic telephone system for the interconnection of office and house lines
IPC: H04M3/62
Filed: 1927-11-10
Abstract: 280,575. Fabrik f³r Automatische Telefonie und Signalwesen Greiner & Co. Nov. 11, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Intercommunication systems.-In a system of the kind in which several connecting circuits are accessible in common to all the substations, two relays are associated with each circuit at each substation, one relay being adapted to associate with the circuit with a particular substation and the other to connect-up the subscriber's talking set. A calling subscriber depresses a key T corresponding to an idle circuit a - - e, thereby energizing both relays AR, VR, and then operates a key 1 - - 5 corresponding to the wanted station at which relay AR is energized over a selecting wire F to light a call lamp AL. The called subscriber then operates the corresponding key T causing the reponse of relay VR which connects his talking set to the connecting circuit in use. A group of similar connecting circuits may be used for exchange calls. Means are also provided for transferring calls from one subscriber to another, for preventing a subscriber from making co-existing connections to two circuits, and for preventing simultaneous calls to the same substation. Intercommunication calls. On a subscriber removing his receiver AT and momentarily depressing key T of a free circuit a - - e, a circuit is closed over springs 12, 13 for relay AR and a busying lamp BL at the calling station, and over wire e for busying lamps BL at all the other stations. Relay AR locks over switch-hook contacts p and closes a circuit for relay VR which locks up and connects up the instruments T, M. A key 1 - - 5 denoting the wanted station is now operated, thereby completing a circuit over relay TR and a wire F for a relay such as FR at the wanted. station. Relay TR lights an indicating lamp KL, whilst relay FR energizes an audible alarm WK and completes a circuit over wires c and d for called station relay AR, which locks up and lights a calling lamp AL. The called party removes his receiver and presses the corresponding key T thereby energizing relay VR which connects up his talking set. Exchange calls. These are made in a similar manner over an idle connecting circuit O. Preventing two co-existing calls from the same station. This prevents a subscriber having access to the exchange from assisting a subscriber without such facilities from speaking over an exchange circuit, by making co-existing connections to both a substation line and an exchange line. In such an event if a subscriber presses a exchange line key when he is connected with a substation, relay VR is short-circuited over contacts 17, 18, 7 and disconnects the substation circuit.
Patent GB-908719-A (GB)
Title: Roll for carding or teaselling machines
IPC: D01G15/18
Filed: 1959-09-04
Abstract: 908,719. Rollers. MAK MASCHINENBAU KIEL A.G. Sept. 4, 1959 [Sept. 6, 1958], No. 30243/59. Class 42 (2). A roll for carding or teazling machines is characterized in that two adjustable antifriction or plain bearings 3 are arranged on a stationary clamped carrier tube 1 and carry an outer working roll 4, the distance between the bearings 3 being approximately 61% of the overall length of the working roll, so that the deflection of the working roll at the centre and the ends is substantially equal and corresponds to the deflection of a beam resting freely with overhanging ends, on two supports. The roll 4 may be driven by any known means and may be formed from several tube parts the junctions of which form seats for the bearings.
Patent GB-1479964-A (GB)
Title: 2,3-methylene prostaglandins and their preparation
IPC: C07F7/18
Filed: 1974-07-08
Abstract: 1479964 2,3-Methyleneprostaglandins SANDOZ Ltd 8 July 1974 [9 July 1973 4 May 1974] 30268/74 Heading C2C [Also in Division C3] The invention comprises optically active 2,3- methyleneprostaglandins of the formulµ or racemates thereof, wherein R 1  is H, C 1-8  alkyl, C 3-10  cycloalkyl or C 7-12  aralkyl, R 2  and R 3  each are H or C 1-4  alkyl, R 4  is 2-tetrahydropyranyl, R 6  is H, C 1-8  alkyl, C 3-10  cycloalkyl or C 7-12  aralkyl, and D is one of the four carbocyclic radicals IIa to IId and A is a carbocyclic radical of Formula IIa or IIb above or of the formula IIe or IIf and salts thereof when R 1  is H and their preparation. The compounds of Formula I above are prepared by hydrolysing the corresponding compound of Formula III, or when D is a radical of the Formula IIb by the acidic dehydration of compound of Formula I above in which D is a carbocyclic radical of the Formula IId. The esters and acids of the compound of Formula I above are obtained by esterification of the corresponding free acids and hydrolysis of the appropriate esters respectively. Compounds of the Formula III above in which A is a carbocyclic radical of the Formula IIa, IIb or IIf are obtained by oxidizing the corresponding compounds of Formula III in which A is a carbocyclic radical of the Formula IIe above or IIg or IIh Compound of Formula III in which A is a carbocyclic radical of the Formula IIe are prepared by reacting compounds of the formula E-CH=CH-CH(OR 4 )-C(R 2 )R 3 -(CH 2 ) 3 CH 3  wherein E is a radical of the Formula Vc with phosphonium halides of the Formula VI wherein X is Cl, BrI and R 5  is naphthyl or phenyl optionally substituted by alkyl, or alkyl. Pharmaceutical compositions contain the above 2,3-methylene prostaglandins of the Formula I above in association with pharmaceutical carriers or diluents. The compounds possess prostaglandin-like activity.
Patent GB-479155-A (GB)
Title: Improvements in or relating to electric discharge rectifiers
IPC: H02M7/06
Filed: 1936-11-06
Abstract: 479,155. Converting. GENERAL ELECTRIC CO., Ltd., and PRINZ, D. G. Nov. 6, 1936, No. 30271. [Class 38 (ii)] Comprises a rectifying arrangement in which an uncontrolled thermionic cathode valve 6 is in series with a controlled liquid pool cathode valve 7. By this means the liability to back ignition of the valve 7 is prevented by the series connected valve 6. Fig. 1 (Prov.) shows a polyphase rectifying arrangement having thermionic cathode valves R arranged in Graetz connection and a discharge device M capable of conducting in either direction associated with each pair of reversely connected valves and having ignition electrodes K1, K<1>1 for determining the moment of ignition.
Patent GB-743827-A (GB)
Title: Scraper chain conveyor structures
Inventor: DUNCAN ANGUS WELLESLEY
IPC: B65G19/28
Filed: 1953-11-02
Abstract: 743,827. Endless-chain conveyers. MINING ENGINEERING CO., Ltd. Oct. 29, 1954 [Nov. 2, 1953], No. 30280/53. Class 78 (1). In scraper chain conveyer structures of the kind made up from series of upper and lower trough sections 3, 4 and 1, 2 which are locked together end to end, the ends of the upper troughs butt together, spillage between them being prevented by independent plates 16 which extend transversely across the tops of the lower troughs. Straps 5, 6 formed with vertical walls 7, 8 and notched horizontal lugs 9, 10 are attached to the ends of the troughs 1, 2. Hook members 11 attached to the parts 8 receive the parts 7 of the adjacent strap and hold the parts together during assembly. The ends of the troughs 3, 4 have straps 12, 13, the ends 14, 15 of which project and are notched to correspond with the lugs 9, 10. Each plate 16 is secured at one end to a U-shaped member 17 with closed ends and at the other end has a similarly shaped member 18 with open ends slidably mounted on it. The members 18 have notches 19 at the top and bottom to take the notched lugs 9, 14. The notches 19 are at such a distance from one end of the members 18 that when the straps are in contact and the lugs 9, 14 in register with a notch 19, the lugs 10, 15 can pass the end of the member 18. Stops 20 on the plate 16 receive the straps 12, 13 between them and hold them against longitudinal separation. In assembling the conveyer the troughs 1, 2 are brought together and the parts 7 are dropped inside the hooks 11. The lower run of the scraper chain is then put in place. The plates 16 are then fitted over the joints by sliding the lower part of the member 17 laterally under the lugs 9, 10 on one side and by-passing the lug 9 on the other side through the lower notch 19 in the slidable member 18. The upper troughs are brought together and the lugs 14, 15 on one side are inserted into the upper part of the member 17. The lug 14 on the other side is lowered through the notch 19 and the member 18 moved longitudinally so that the unnotched part comes above and below the corresponding parts of the lugs 14, 15, 9 and 10 and the parts are locked in longitudinal and vertical relationship. The top flight of the conveyer is then placed in the upper trough. In a modification longitudinally movable members are provided at each end of the plates 16. Specification 721,481 is referred to.
Patent GB-301627-A (GB)
Title: A new or improved woven fabric
IPC: D03D15/00
Filed: 1927-11-11
Abstract: 301,627. Emerson, J. P. Nov. 11, 1927. Raffia fabrics; materials, special, fabrics containing.-A fabric for handbags, tea-cosies, table mats, &c. is woven from raffia weft and a warp of " gardeners' tape " comprising cotton strands enclosed in a thin paper web and dyed if required. The fabric can be treated with varnish or size.
Patent GB-463276-A (GB)
Title: Improvements relating to gas igniting appliances
IPC: F23Q9/00
Filed: 1935-11-02
Abstract: 463,276. Thermally-actuated valves. RADIATION, Ltd., YATES, H. J., and BENNETT, A. R. Nov. 2, 1935, No. 30337. [Class 135] [Also in Group XI] In means for igniting a gas burner in which the gas tap e is turned against the action of a spring h beyond the fully open position to supply gas to a pilot jet g, which is ignited by an electrically-heated filament or a catalyst and in turn ignites the main burner, the tap e is held in that position by a cam &c. c thereon engaging a catch b until the latter is disengaged by the flexure of a thermostatic strip f, heated by the jet g, the tap being then returned sufficiently by the spring h to cut off the jet g. As shown, a slidable catch b is connected to the strip f. Alternatively, a pivoted catch may be connected by a link with the strip.
Patent GB-470313-A (GB)
Title: Improvements in or relating to pyrophoric lighters
IPC: F23Q2/06
Filed: 1936-11-06
Abstract: 470,313. Frictional pocket igniters. POPPER, F. Nov. 6, 1936, Nos. 30341 and 30342. Convention dates, Jan. 14 and Sept. 5. [Class 75 (iii)] A vapour chamber h is provided above fuel-impregnatec cotton-wool d in a tubular con tainer a lined with a sleeve of porous material, such as a cylindrical wick c, and the frictionwheel f is arranged to throw sparks downwardly into the chamber h for igniting the benzene &c. vapour therein. The container a may project into a liquid fuel reservoir, through which the flinttube e passes, a feed opening being provided in the lower end of the container. The chamber is closed when not in use by a cap b or by a spring-controlled cap or cover adapted to actuate the friction-wheel. In a storm-proof lighter, an elongated, preferably oval, container projects into a windshield of similar shape.
Patent GB-262427-A (GB)
Title: Improvements in or relating to means for use in indicating or comparing the thermal conditions in the several parts of a power plant
IPC: F16P7/00
Filed: 1926-11-30
Abstract: 262,427. Boerlage, G. D. Dec. 2, 1925, [Convention date]. Thermometers. -The temperatures of the various parts of a power plant, e.g. the bearings and cylinders, are indicated at a distance by the variation of pressure of air contained in vessels associated with the parts concerned and connected by tubes to liquid pressure gauges contained in a common casing. In the example described a four cylinder internal combustion engine has each bearing and cylinder provided with small air chamber 11 connected by pipes 22 to gauges contained in a casing 12. The air chambers may be separate from the bearings or cylinders or may be recesses in the same fitted with a cover to which the pipe 22 is connected. When separate, the air chamber consists of a tube 19 with a flattened portion by which it is connected to the bearing or cylinder at one end, the pipe 22 being secured at the other end, the tube 19 being insulated and fitted with a bright metal covering 24. In Fig. 1, the indicator 16 connected to one cylinder is lower than the corresponding ones connected to the other cylinder showing that this particular cylinder is defective in operation. Similarly the indicator 17 shows that the corresponding bearing is overheated and the indicator 18, which is low, shows that the bearing corresponding to the defectively working cylinder is not so heavily loaded as the other bearings. One form of air chamber consists of a jacket cast round the compression cock of the cylinder. The casing 12 may be constructed as shown in Fig. 7, the pipes 22 being carried in from the back and the open ends arranged in bell-glasses 41, the casing being filled with liquid, e.g. glycerine. A thin layer of coloured oil 46 serves as an indicator. The pipes 22 are of small bore or may be of rubber tube containing a number of wires to reduce the bore cross-sectibn and to prevent collapse of the tube.
Patent GB-1103226-A (GB)
Title: Improvements in or relating to pressure control systems
Inventor: BRACK GEORG
IPC: F15B11/10
Filed: 1965-07-16
Abstract: 1,103,226. Fluid-pressure servomotor systems. REGLERWERK DRESDEN VEB. July 16, 1965, No.30407/65. Heading G3P. A base unit for a pressure operated controller carries an amplifier unit and a force balance having deformable members. The base also includes mounting means for the removable attachment of additional control components and conduit means whereby the components and amplifier may be inter-connected. The arrangement is such that by the addition or removal of components, controllers may be formed on the base unit to operate as a PZ, PD, PIZ, P(DZ), PID or PI(DZ) controller.
Patent GB-1048154-A (GB)
Title: Mobile exercising apparatus
Inventor: DOLPHIN JOHN ROBERT VERNON
IPC: B62K3/00
Filed: 1964-08-01
Abstract: 1,048,154. Jumping apparatus. T. I. (GROUP SERVICES) Ltd. Oct. 20, 1965 [Aug. 1,1964], No. 30412/64. Heading A6M. A jumping device comprises a tubular post with footrests 16 which is resiliently supported by a spring on a post 14 mounted on a three wheeled carriage 10, a member 22 projecting from post 15 being connected to a chain 21 which is oscillated by the user to establish a forward drive to wheels 11 through a free-wheel device 20.
Patent GB-1371828-A (GB)
Title: Mounting for temperature-senstive electrical device
IPC: G01J5/28
Filed: 1973-05-16
Abstract: 1371828 Temperature control of semiconductor devices PLESSEY CO Ltd 16 May 1973 [29 June 1972] 30463/72 Heading H1K One or more semi-conductor devices 3 are mounted on the end wall of a metal container 2 which has a glass jacket 5 on its major surface. A cover sealed to the jacket completes an evacuated enclosure containing the device(s). The metal container holds a temperature control medium which allows the devices to be operated at above or below the ambient temperature. The device shown has two infra red detectors 3 with leads 4 provided with glass sleeves 6 which are fused to the glass jacket 5 before the cover part 8 (of glass or metal) is attached thereto. The jacket may be applied to the container as a preformed cylinder or by fusing glass frit. The upper cover part 9 (also of glass or metal) has a radiation-transparent window 17 and an evacuation nipple 18, sealed to complete the structure. Liquid nitrogen may be held in or circulated through the container.
Patent GB-267197-A (GB)
Title: Improvements in or relating to trailer brakes
IPC: B60T7/10
Filed: 1925-12-03
Abstract: 267,197. Neate, R. W. Dec. 3, 1925. Hand and foot actuation.-In operating-mechanism for the brakes of trailer vehicles in which the brake-operating cable is wound on a spring controlled drum rotated through ratchet and lever mechanism bv the driver of the tractor vehicle as described in Specification 8351/15, the operating lever is adapted on movement in one direction to rotate the ratchet by engaging therewith a toothed member or the like and on movement in the other direction to release a spring or similarly controlled detent pawl. As shown. tEe operating lever 5 has pivoted thereto at 12 a bell-crank lever 8 normally pressed upwards by a spring and having connected thereto a rod 7 with a toothed member 6 adapted to engage one or more ratchet-wheels 3 on the spring-controlled drum around which is wound a wire cable 1 connected to the trailer brakes, preferably by the coupling described in Specification 236,674. Movement of the lever 8 to the left first causes the member 6 to engage the ratchets and then actuates the lever 5 to rotate the drum and apply the trailer brakes. A disc of friction material may be pressed against the lever 5 by a spring to retain the lever in any position to which it is moved. Reverse movement of the lever 8 disengages the toothed member 6 and moves the lever 5 backwards, so that it strikes and disengages a detent pawl 4 to release the brakes. The pawl 4 may also be controlled by foot pedal. The machanism is enclosed in a casing 17 through a slot in which the lever 5 projects.
Patent GB-758078-A (GB)
Title: Improvements in or relating to mattresses
IPC: A47C27/00
Filed: 1954-10-23
Abstract: 758,078. Mattresses. BROADBENT, F. K., and NUTTER, G. Jan. 11, 1955 [Oct. 23, 1954], No. 30569/54. Class 52(4). Mattress sections a, b, c, connected by top and bottom flap #, e with press stud fasteners x<SP>1</SP>, x<SP>2</SP>, are removably enclosed by a case with a top k secured around three sides by a sliding clasp fastener u, and preferably quilted. Laced flaps h, j, hold the sections securely in the case and cover their junctions. The outer case may be constructed with the sliding clasp fastener arranged midway of the height of the side walls which may be padded with three layers of padding separated by fabric, with the inner separating walls stiffened by canvas or wire gauze.
Patent GB-894068-A (GB)
Title: Improvements in or relating to color photography
Inventor: HOFFSTADT WALTER FREDERICK
IPC: G03C7/36
Filed: 1960-09-05
Abstract: a  - (2 - chlorobenzoyl) - 2 - tetradecoxy - 5 - carboxy-acetanilide is prepared by acetylating 3-amino-4-hydroxybenzoic acid hydrochloride with acetic anhydride, reacting the 3-acetamido compound so formed with tetradecyl bromide in the presence of sodium ethylate and pouring the product into ice water acidified with hydrochloric acid to give 3-amino-4-tetradecoxybenzoic acid, and condensing this with ethyl 2-chlorobenzoyl acetate.  Compounds of the general formula <FORM:0894068/IV (b)/1> wherein R is an alkyl group of at least 10 carbon atoms and X is fluorine, bromine or chlorine are similarly prepared by using the appropriate alkyl halide to give a 3-amino-4-alkoxy-benzoic acid and condensing this with the appropriate ortho-halo-benzoylacetic ethyl ester.
Patent GB-1010797-A (GB)
Title: Feeding device for band knife splitting machines
Inventor: GROSSMANN GUNTER
IPC: C14B1/14
Filed: 1962-08-09
Abstract: 1,010,797. Splitting-machines. MASCHINENFABRIK MOENUS A.G. Aug. 9, 1962, No. 30665/62. Heading B4B. In a band knife splitting-machine in which the material is fed between a pressure roller 8 and a roller 2 composed of individual rings 5- cooperating with a rubber roller 4, the rings are driven from a bed roller 12 by means of individual conveyer belts 10. The belts are tensioned by means of stay bolts 16 provided with screw-threads 18 of opposite hand and having at their ends blocks provided with rollers 22 engaging grooves 3, 13 in the rollers 2, 12 respectively. Alternatively, the ends of the bolts may be in the form of ball or needle bearings. A deflector 28 is pivotable about a perforated tube 30 through which liquid is sprayed against the roller 4 to dissolve smudge and particles which are then removed by a blade 32. In a modification, the stay bolts are replaced by tensioning plates each of which is provided with one or more eccentric tensioning rollers, one or more guide rollers and with a window opening through which passes a bar which limits the upward movement of the tensioning plate.
Patent GB-759001-A (GB)
Title: Improvements in or relating to the high frequency treatment of materials
Inventor: ZALESKI JOHN FRANCIS
IPC: B29D30/06
Filed: 1954-10-25
Abstract: 759,001. Dielectric heating. GENERAL PRECISION LABORATORY, Inc. Oct. 25, 1954, No. 30723/54. Class 39(3). A self-enclosed wave conducting system includes a high frequency source 4, a mould 1 with a cavity 2 for a tyre casing 3, and means for adjusting the impedance of the energy source to the impedance of the mould cavity and the tyre casing to provide maximum absorption of the high frequency energy by the tyre casing. Power is delivered through a coaxial cable 6, the outer conductor of which is connected to the mould and the inner conductor 12 to a conductive disc 13 which connects with a wire mesh conductor 7 surrounding an air bag 8. A tuning stub 9 is connected to the upper half of the mould and includes an adjustable plug 11 which adjusts the supply to the load, An inner conductor 16 is connected through a conductive disc 14 to the wire mesh conductor 7. The plug may be continuously moved to vary the position of any standing waves. Low loss dielectric spacer discs 15, 20 are provided, together with a disc 21 which supports the inner surface of the airbag. The high frequency field is contained within and extends radially between the inner walls of the mould and the wire mesh. A liner 45 of low loss dielectric material within the mould cavity compensates for variations in the tyre casing thickness to ensure uniform heating. In Fig. 3 the inner conductor 27 of the supply cable extends continuously to the plug of the impedance adjusting stub 29, and two parallel wave paths are provided between the inner surfaces of the mould cavity and a spool-shaped element 31 having a central part 32 collinear with the outer conductor of the supply cable. A wire mesh conductor as in the first embodiment is conductively connected to the element 31. In Fig. 4 the energy is supplied by a hollow wave guide 110 and the wire mesh is connected to a metallic core 106 sandwiched between dielectric discs 107, 108. An adjusting unit III with a stub 112 is provided. If energy of a fixed polarisation is supplied to the guide the mould may be rotated about its axis and relative to the guide, or alternatively the plane of polarisation may be rotated electronically, Fig. 7 shows a number of shock absorbers stacked within a section of coaxial cable fed with high frequency energy and provided with an adjustable shorting plug 141. Each shock absorber is enclosed within a mould 138 and comprises an annular plate 130, a central element 131, and a rubber pad 132.
Patent GB-212956-A (GB)
Title: Improvements in the construction of talking machine amplifiers
IPC: G10K13/00
Filed: 1922-11-10
Abstract: 212,956. Strickland, M., (trading as Stucoid Plastic Art Co.). Nov. 10, 1922. Sound magnifying and directing appliances. - The wall of a talking-machine horn comprises one or more layers 3, 6 of plastic or cementitious material moulded around a tapered removable core which is first oiled or greased. The material mav be reinforced with one or more intermediate layers 4 of cheese cloth or other fabric. Upon removal of the core, the complete horn may be seasoned in a bath of boiled linseed oil for two or three hours, after which it is dried, polished, &c. An out-turned flange may be formed at the mouth of the horn by using a flanged core, and a flange may also be formed at the inner end. One or more sound deflectors 9 of the same plastic material may be inserted. According to the Provisional Specification, theplastic material may be plaster, magnesite, wood pulp or cement. Reference has been directed by the Comptroller to Specifications 5337/85 and 5536/86, [both in Class 87, Moulding &c.], and 6405/94, [Class 22.. Cements &c.].