baber/WOPTO huggingface dataset:
Patent GB-673692-A (GB)
Title: Improvements in or relating to ice skating rinks
IPC: E01C13/10
Filed: 1949-08-06
Abstract: 673,692. Ice skating-rinks. REFRIGERATION A-Z (GUILDFORD), Ltd., and BAKER, P. W. E. Aug. 8, 1950 [Aug. 6, 1949], No. 20481/49. Class 20(i). [Also in Group XIII] An ice skating-rink comprises a structure built up of prefabricated sections including heat insulative, e.g. cork, layers 3c, 4b, and eutectic freezing plates 4d supported horizontally on or above the cork layers, an upstanding rim 5 surrounding the structure. Longitudinal bearer members 1 support bottom sections which extend the full width of the rink, each section consisting of the cork slabs 3c resting on a board floor 3b carried in an L- section light alloy frame 3a, a canvas sheeting 3d covering the cork. On the bottom sections are supported top sections which include, besides the freezing plates 4d, a cork layer 4b carried in a wooden frame 4c, with convas 4a beneath the cork. Pipes 4e in the plates 4d enable a refrigerant, e.g. brine, to be circulated from a compression refrigerating apparatus. A layer of water-absorbent material, e.g. sand 6, overlies the top of the plates 4d and is flooded and frozen to form a base for the ice floor proper. The upper sections overlap the joints between the lower sections. The upper and lower sections may be prefabricated as a unit, and part or all of the rink may be mounted on wheels.
Patent GB-446940-A (GB)
Title: Improvements in treadle driving-mechanism for bicycles
IPC: B62M1/24
Filed: 1935-07-18
Abstract: 446,940. Treadle and brake mechanism for cycles. DELVOIE, E., 37, Rue de Hasselt, Tongres, Belgium, and COLLEE, L., 96, Kipstraat, Rotterdam, Holland. July 18, 1935, No. 20521. Convention date, July 18, 1934. [Classes 136 (i) and 136 (ii)] A treadle driving-mechanism for bicycles &c. comprises a casing forming the bottom bracket, a shaft mounted therein and carrying one of the treadles, a sleeve on this shaft carrying the other treadle, one-way clutches mounted on the shaft and sleeve respectively and having a common outer race carrying the chain wheel or like driving-member of the bicycle, and spur gearing interconnecting the treadles and arranged in the following manner so as to enable the treadles to be actuated alternately. The treadles 16, 15 are fixed respectively to a shaft 4 and to a sleeve 7, and drive the boss 10 of a sprocket &c, 11 (geared to the rear wheel) through roller clutches 26, 7<1> respectively, the clutch rollers being mounted in spring-controlled cages. The treadles are interconnected for alternate depression and elevation by spur gearing, which is mounted in an enlargement 3 of a casing 2 and comprises a pinion 17 on the sleeve 7 meshing with a part 18 of a double pinion 18, 18<1> which gears with part of another double pinion meshing with a pinion 22 on the shaft 4. The Specification as open to inspection under Sect. 91 comprises also brake mechanism operated by a foot-lever, which is pivoted to the treadle 16 and is provided with two branches connected respectively to the ends of a brake band looped around the boss 10 of the sprocket wheel. This subject-matter does not appear in the Specification as accepted.
Patent GB-141401-A (GB)
Title: Manufacture of mordant-dyeing disazo-dyestuffs and their application in dyeing and printing
IPC: C09B31/02
Filed: 1918-12-10
Abstract: Secondary disazo dyes are prepared by diazotizing an aminoazo dye of the general formula <FORM:0141401/2/1> (R, R1=aryl radicals, substituted or not), and coupling with an aminonaphthol sulphonic acid, an acetylaminonaphthol sulphonic acid, or a pyrazolone containing a carboxyl group, or a carboxyl group and an hydroxyl group in its aryl residue.  The products are mordant dyes, dyeing wool in acid baths shades which become yellow to red or green-blue whan after-chromed, and give similar tints when chrome-printed on cotton.  Examples are given of the preparation of dyes from the following parent materials:-4 - aminoazobenzene - 3 : 31 - dicarboxylic acid and 1 - 21 - carboxyphenyl - 3 - methyl - 5- pyrazolone; 4 - aminoazobenzene -3 : 31-dicarboxylic acid and 1 : 8 : 2 : 4-aminonaphthol disulphonic acid; 4-aminoazobenzene-51-sulpho3 : 31-dicarboxylic acid and 1-phenyl-5-pyrazoline-3-carboxylic acid; 4-aminoazobenzene-51-sulpho-3 : 31-dicarboxylic acid and 1 : 8 : 3 : 6 -acetaminonaphthol disulphonic acid; 4-aminoazobenzene-2 : 31-dicarboxylic acid and 1-21-oxy -31-carboxy- 51-sulphophenyl-3-methyl-5-pyrazolone; 4-aminoazobenzene-3 : 41-dicarboxylic acid and 1-21-oxy-31-carboxy-51 -sulphophenyl-3-methyl-5-pyrazolone.  Specifications 1225/81, 2030/81, and 118,448 are referred to.
Patent GB-633783-A (GB)
Title: Improvements in or relating to nursing units
IPC: A61J9/00
Filed: 1947-07-30
Abstract: 633,783. Feeding bottles. ALLEN, A. M., and EVERA, M. L. VAN. July 30, 1947, No. 20544. Convention date March 25, 1946. [Class 125 (i)] An infant's feeding unit intended for single use is made from a non - toxic pliable sheet material such as a rubber hydrochloride, and comprises a containei 10, Fig. 1, which has an open end 11, closed edges 12, 13 and a closed wavy edge including a nipple portion 14, with one or more openings 19, between curved shoulder portions 15. The unit is formed either by folding a sheet of material along the edges 12 and heat or lap sealing, or cementing, the edges 13, 14 and 15, or from tubular material folded flat and the edges 14 and 15 sealed in a similar manner. When the liquid has been placed in the container 10 the end 11 is folded lengthwise and the fold is sealed with a U-shape clamp. In a modification, the nipple portion is adjacent one corner of the container and a tail portion is provided for closing the filling opening by tying a knot or by folding and clamping. In another modification, the container 10 is rectangular in shape and one corner containing perforations acts as a nipple and the opposite corner is left unsealed.
Patent GB-435152-A (GB)
Title: Improved piston rod gland packing ring for vacuum brake cylinders
IPC: F16J15/56
Filed: 1934-07-13
Abstract: 435,152. Stuffing - box packing. DAY, W. A. J., 949, Church Street, Pretoria, Transvaal, South Africa. July 13, 1934, No. 20572. [Class 122 (v)] A piston rod - packing of rubber &c. for vacuum brakes &c. comprises a cylindrical member 2 flanged at each end and provided with an inwardly directed corrugation 4 to make contact with the rod.
Patent GB-780900-A (GB)
Title: Method of and apparatus for forming and/or shaping tubing or other tubular workpieces of thermoplastic material
IPC: B29C48/09
Filed: 1955-07-15
Abstract: 780,900. Making tubular thermoplastic articles. REIFENHAUSER, H. July 15, 1955 [July 15, 1954], No. 20606/55. Class 87(2). The outer surface of a tubular piece of thermoplastic material in hot deformable state is sucked into contact with a shaping surface, which may be cooled. The tubular piece may have been preformed and then heated prior to the application of suction, or, as shown in Fig. 1, the tubular piece 3 may be extruded from a nozzle 1 and subjected to suction while it is still hot. The tube 3 is extruded into a tubular shaping member 4 having holes 6 through which suction is applied from a suction source 8a. A cooled chamber 9 integral with member 4 keeps the latter cool so that the tube 3 is set in its shaped condition. Cooling means may be arranged in or around member 4 and beyond member 4 (to the right) to contact the cooled shaped article. Fig. 3 shows a shaping member comprising two tubes 14, 15, spaced at 13, the suction being applied through this space. The suction apertures 6 may be round holes or staggered elongated helical slots.
Patent GB-183846-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M19/02
Filed: 1922-07-28
Abstract: 183,846. Hitta, P., and Paries, R. July 29, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Spray carburettors.-Two fuel nozzles 6, 7 are arranged respectively on the two sides of the throttle valve 3 and are each controlled by a hand-adjusted needle valve 8. Air-inlets 16 are controlled by a piston valve 17, actuated by linkage or a cable. A spring 21 tends to close the air valve and the minimum opening is determined by a nut 22.
Patent GB-1365217-A (GB)
Title: Method and apparatus for friction welding
IPC: B23K20/12
Filed: 1972-05-04
Abstract: 1365217 Friction welding NORTH AMERICAN ROCKWELL CORP 4 May 1972 [10 June 1971] 20708/72 Heading B3R In a method of friction welding a pair of end workpieces, e.g. end spindles 11, 13, rotating about a common axis to an intermediate non- rotating central workpiece, e.g. axle housing 12, one of the end workpieces is restrained against axial movement away from the central workpiece, the other end workpiece is moved axially into engagement with the central workpiece and this axial movement is continued to axially displace the central workpiece into engagement with the said one end workpiece when a welding force is applied urging the workpieces together. In the preferred apparatus Figs. 1, 2, the spindles 11, 13 are rotably supported in carrier units 22, 23 axially movable along base on guide rails 18, 19. Axle housing 12 is supported on an axially movable table 14 and held by clamping jaws 15-17. In operation, carrier 22 is first moved by fluid pressure cylinder means 26, 28 until spindle 11 approaches position A and limit switch LS2A is activated to reduce the flow of fluid until carrier unit 22 is stopped by adjustable stops 136, 138. Table 14 is moved to the right by cylinder and piston means 120 until in position B where it is stopped by adjustable stops 60, 62. Carrier unit 23 is then moved by similar means to that which moves unit 22 and workpiece 13 engages workpiece 12. A timer switch is actuated to actuate, for a short period, e.g. 1 sec., solenoids S1A, S1B (Fig. 2) which disconnect low pressure pumps 70, 130 from cylinders 26, 28, 42, 44 and connects high pressure pump 132 thereto. Carrier unit 23 is moved further to the left, the three workpieces engage and welding takes place. After a period of time rotation of workpieces 11, 13 by drive units 38, 54 is stopped and pumps 70, 130 reconnected to cylinders 26, 28, 42, 44 which retract carrier units 22, 23.
Patent GB-710237-A (GB)
Title: Improvements in or relating to threads or narrow bands of foam material
IPC: H01B3/42
Filed: 1952-08-18
Abstract: 710.237. Cored yarns. SUDDEUTSCHE KABELWERKE ZWEIGNIEDERLASSUNG DER VEREINIGTE DEUTSCHE METALLWERKE AKT.-GES. Aug. 18, 1952 [Sept. 21, 1951], No. 20750/52. Drawings to Specification. Class 120(3) [Also in Group XXV] A thread comprises a structure of foamed material having electrically insulating properties enclosing one or more textile threads. The textile threads may be of silk, nylon or perlon and the foamed material of polystyrene.
Patent GB-1511971-A (GB)
Title: Floor-level door-closer
IPC: E05F3/00
Filed: 1976-05-20
Abstract: 1511971 Door closers VEREINIGTE BAU BESCHLAGFABRIKEN GRETSCH & CO GmbH 20 May 1976 [21 May 1975] 20791/76 Heading E2M In a floor level door closer comprising a housing 1 formed of a single initially plane sheet metal plate and closed by a lid 2 which is permanently secured to the housing 1, a closer mechanism is contained within the housing 1 having a closer shaft 30 projecting from the lid for connection to the door. The closer mechanism includes a hydraulic damper 24 and a closer spring 47 mounted on spindles 50, 60, 72 which are mounted in bearings located on or formed by the lid and the bottom portion of the housing. The closer shaft 30 is provided with two cam discs 40, 41 on which complimentary rollers 42, 43 of a twoarmed lever 44 engage On one arm 46 of the lever 44 one end of the closer spring 47 is articulated and on another arm 45 of the lever 44 one end of the hydraulic damper 24 is articulately attached. The other free ends of the closer spring and the damping device are articulatedly retained on spindles 60 and 72 respectively held between the housing 1 and the lid 2. The lid and housing may be treated against corrosion by an electrostatically applied coating and an elastic sealing composition may be placed between the housing and the lid before being secured together. The housing 1 is accommodated in an installation box B.
Patent GB-343417-A (GB)
Title: Improvements in and relating to card tables and scoring devices therefor
IPC: A47B25/00
Filed: 1930-07-09
Abstract: 343,417. Card tables. MARSH, L. A., Mill Valley, California, U.S.A. July 9, 1930. No. 20799. [Class 52 (iii).] A device for displaying the score pad on a card table comprises a table top with a central glazed &c. opening beneath which the score pad is supported preferably on a carriage. Fig. 1 shows a card table 11 with a glazed central opening 12 beneath which a score pad on a withdrawable carriage 18, Fig. 2, may be viewed. The carriage moves on rollers 20 on an inclined track in the table top, and is secured in its central position by a spring latch device, operated by a press-button 27, and engaging with the pin 26. The carriage 18 bears a score pad 21 and a card 22 upon which the rules and other data may be printed. In a modification, the carriage is pushed out and in by a lever mechanism, which is fitted with a spring latch to enable the carriage to be retained in its central position.
Patent GB-1394117-A (GB)
Title: Connecting members for shaped building members
IPC: E04B1/61
Filed: 1972-05-04
Abstract: 1394117 Connecting building blocks R HEINZE [trading as RICHARD HEINZE] 4 May 1972 [8 May 1971] 20802/72 Heading F2M A plastics connector for, e.g., interconnecting plastics building blocks, has solid cylindrical projections 5a, 5b extending in parallel from at least one face of a base plate with a hole 4 therethrough, which is spaced from the projections. The base plate extends laterally beyond the projections, and is preferably annular. The connector may be glued in position, and is preferably injection-moulded.
Patent GB-1149892-A (GB)
Title: Spark-ignition engine tachometer
Inventor: IRVINE JOHN ANDERSON
IPC: G01P3/48
Filed: 1965-05-17
Abstract: 1,149,892. Measuring I. C, engine speed electrically. FINDLAY IRVINE Ltd. May 17, 1966 [May 17, 1965], No.20807/65. Heading G1N. A tachometer for internal combustion engine is connected to a contact breaker in the ignition primary circuit and to the negative pole of the low tension electrical source, and comprises a rectifier D 1  which blocks direct current from the source and passes only negative half-cycles of induced oscillation of the primary circuit, a pulse forming circuit, and a pulse rate counter. Each time the contact breaker points open an exponentially decaying oscillation is induced at terminals C B. The negative going half-cycles charge up a capacitance formed by C 1 , C 2  in series, the capacitors C 1  C 2  respectively having discharge paths through a resistor R 1  and through a galvanometer M in series with R 2 . The capacitance of C 1  is lower than C 2  so that an attenuated waveform is obtained across C 2  . A Zener diode D 2  prevents voltage across C 2  exceeding a Zener voltage V D <SP>2</SP>. The time constants of the circuits C 1 , R 1  and C 2 , R 2  + M are chosen to be considerably greater than the decrement of the ignition circuit C 2  is therefore charged rapidly up to voltage V D   2 . The charging voltage drops rapidly and C 2  discharges at a rate dependent on the parameters of the discharge circuit. Consequently the voltage waveform at point B consists of a series of pulses of invariable amplitude V D  and of constant shape, which pulse characteristics are independent of engine speed - their frequency is that of the contact breaker points and thus the time averaged current through the galvo is directly proportional to pulse frequency and hence engine speed.
Patent GB-1106370-A (GB)
Title: Motor drives
Inventor: LEE WILLIAM HENRY
IPC: H02P27/02
Filed: 1965-05-17
Abstract: 1,106,370. Control of A.C. motors. HARRIS INTERTYPE CORPORATION. 17 May, 1965, No. 20849/65. Heading H2J. [Also in Division G3] The speed of a polyphase wound rotor induction motor, e.g. for a printing press, which has resistance connected to its rotor via a transformer device, is controlled by a reversible servomotor which varies the transformation ratio when switched by speed error signals. As shown, the device is an autotransformer 28, but it may be an induction regulator. An actual speed signal is derived by asymmetrical rectification of the rotor voltage and applied to a capacitor 65; a reference voltage from potentiometers 70, 71 across rectified line voltage is applied to a second capacitor 68, and these capacitors are interconnected by reverse poled sets of diodes 98 . . . 101, such that one set or the other conducts according to whether the speed signal is high or low. The voltage drop across respective ones of the diodes triggers the appropriate one of two thyristors 114, 115 in the secondary circuits of two transformers. The resultant change in secondary impedance is reflected into the primaries, which are in series with respective directional windings of the servomotor 40, which is thus driven in a correcting direction whenever a speed error exists. Hunting is prevented by a resistance/capacitance circuit in parallel with the diodes. Switches in the reference voltage circuit enable inching and running speeds to be selected. Reference has been directed by the Comptroller to Specification 1,004,063.
Patent GB-670209-A (GB)
Title: Improvements in or relating to apparatus for introducing fluid into a living body
IPC: A61M5/168
Filed: 1949-08-11
Abstract: 670,209. Surgical injection-apparatus. ANDREW, D. S. July 21, 1950 [Aug. 11, 1949], No. 20906/49. Class 81 (ii). Apparatus for introducing fluid into a living body comprises a capsule 1 which communicates with the upper portion of a fluid-containing reservoir 3 to which is connected fluid dispensing apparatus, not shown, an air inlet pipe 5 opening into the reservoir near the bottom thereof, a restricting orifice 6 open to the atmosphere and communicating with the interior of the capsule and the reservoir, and electrical contactor means 16, 17, connected to a warning device 19 and so coupled to the capsule that a change of pressure in the capsule operates the contactor means. The air pressure inside the reservoir is adjusted by needle 7 so as to regulate the rate of flow of fluid through outlet pipe 4 to the dispensing apparatus. If this rate of flow should decrease the pressure in the capsule will rise, causing diaphragm 8 to move outwards and move a lever 10 so as to disengage a hook 13 'on a lever 14 .which then moves towards a magnet 18 and closes contacts 16, 17. In a modification, the contactor means may operate the warning device when the pressure in the capsule rises above or drops below a predetermined value. An indicating pointer 23 is also coupled to the diaphragm of the capsule.
Patent GB-240619-A (GB)
Title: Improvements in lids of kettles and like vessels
IPC: A47J36/10
Filed: 1924-09-04
Abstract: 240,619. Bolton, E. M. Sept. 4, 1924. Lids and covers. - An annular groove c, adapted to grip the edge of the mouth orifice to retain the lid in place when the vessel is tilted for pouring, is formed between the rim a of a kettle or like lid and the depending cylindrical flange b.
Patent GB-407868-A (GB)
Title: Improvements in or relating to apparatus for drying and firing fireproof linings in tubes, more particularly for gas-engine exhaust pipes
IPC: F26B21/00
Filed: 1933-07-25
Abstract: 407,868. Metal pipes and tubes. GUTEHOFFNUNGSHUTTE OBERHAUSEN AKT.-GES., Oberhausen, Rhineland, Germany. July 25, 1933, No. 20922. Convention date, July 25, 1932. [Class 99 (ii).] In drying and firing the fireproof lining e<1> in a tube e, particularly a gas-engine exhaust pipe, the tube is placed on a support a over a perforated-tube burner d supplied with gas and air through pipes b, c. The burner d may consist of a plurality of superposed rings and may be provided with a slide valve so that a stronger or weaker flame may be obtained in one direction or another. The limbs of a branched pipe are treated successively. In the case of a bent or curved tube, the burner is correspondingly shaped. The upper end of a straight tube and the free ends of a branched pipe are covered by perforated plates or gratings f for retarding the outflow of the heating gases.
Patent GB-501894-A (GB)
Title: Improvements in or relating to navigation aiding radio transmitters
IPC: G01S19/41
Filed: 1938-07-14
Abstract: 501,894. Directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 14, 1938, No. 20936. Convention date, Aug. 18, 1937. [Class 40 (v)] A beacon transmitter radiates a number of "figure-of-eight" navigational courses formed by modulated fields with the carrier-wave suppressed, the directions of the fields being varied by adjusting the strength and phase of the currents fed from a balanced modulator to the different aerials of the system. The adjustments are monitored by means of cathode ray indicators. As shown in Fig. 1, carrier current from a source 1 is fed to an amplifier 3 which is directly coupled to a central non-directive aerial 9. Low-frequency signalling currents from a source 51 are fed by a keying-relay 61 from selected contacts 59 on a transformer 53 to a modulator 69 controlling the amplifier 3, and also to a pair of balanced modulators 5, 7. The latter are coupled respectively at 15 and 35 to two pairs of spaced aerials 27, 29 and 47, 49 which radiate a figure-of-eight field. The direction of the transmitted guideways or courses can be varied by suitably selecting the tapping- points 59 operated by the keying-relay. Instead of radiating four courses set at rightangles to each other, the arrangement of contacts 61, 135, shown in Fig. 3C, by varying the proportion of the modulated side-bands fed to the spaced aerials 27, 28, " shifts " the courses as shown in Fig. 4C. Other tapping points can be chosen to orientate the courses differently. The necessary adjustments are monitored or verified by means of two cathode ray tubes 79, 81, Fig. 1, the vertical deflecting plates of which are coupled to the aerial 9, whilst the horizontal plates are coupled to the two pairs of spaced aerials 27, 29 and 47, 49 respectively. The trace' shown in Fig. 5A, for instance, indicates that the modulators 5, 7, Fig. 1, are but of balance, whilst Fig. 5C, shows correct balancing. Similarly, Figs. 6A and 6C show incorrect and correct phasing of the aerial currents.
Patent GB-1348668-A (GB)
Title: Structures
IPC: F27B3/12
Filed: 1971-04-19
Abstract: 1348668 Furnace roof GEO P REINTJES CO Inc 19 April 1971 [5 Feb 1970] 21085/71 Heading F4B The circular (or elliptical) conventionally suspended roof of an electric arc furnace is formed from concentric rows of tapered bricks which are all of the same size, appropriate numbers of evenly spaced bricks in each of the rows being inserted in a reversed position to form a completely closed row of the correct radius. Asbestos expansion shims may be inserted at desired intervals between certain of the concentric brick rows and between some of the bricks in each row. Single tapered bricks are used to form a flat roof and triple tapered bricks are used to form a domed roof. The outer brick rows are of steel cased bricks but the inner rows may be of uncased bricks. Given the desired roof dimensions, the number of brick rows to be used, the spacing and sizes of the shims, and certain characterizing brick dimensions, a method is disclosed for calculating a suitable size of brick for use in the construction, and the numbers of bricks which must be inserted in the normal and in the reversed positions in each of the concentric brick rows.