baber/WOPTO huggingface dataset:
Patent GB-499219-A (GB)
Title: Improved electro-magnetic device for liquid level regulation
IPC: G01F23/74
Filed: 1937-07-24
Abstract: 499,219. Automatic control systems. STERN, W. July 24, 1937, No. 20490. [Class 38 (iv)] Fluid pressure; fluid flow.-A float 1 formed wholly or partially of ferromagnetic material is arranged to float on the surface of a liquid in a tube 2, a coil 8 arranged to surround the tube 2 having a condenser 10 arranged in series or parallel therewith so that at a predetermined position of the liquid level in 2 carrying the core 1 resonance takes place and the variation of the current produced thereby causes relay coil 15 to effect operation of means for controlling the liquid level. The means may comprise a contact member 18 released by the coil 15 when resonance occurs to open the circuit of a motor 6 driving a pump supplying pressure oil to the container 5 of a hydraulic press to which the tube 2 is connected. The indicating instrument 14 gives an indication of the liquid level and may be arranged to make and break the circuits of signalling devices or may be used instead of the relay coil 15. The part of the tube 2 adjacent to the coil 8 is made of non- magnetic material. One or more additional coils 8<1> may be arranged on the tube 2 and may be associated with the instrument 14 and with the relay 15 or may be connected with different instruments and with further relays for controlling the liquid level regulating means. The Specification describes arrangements in which the liquid level is respectively arranged to be dependent on the pressure in a cylinder, the pressure relationship between two containers, and the rate of flow of a fluid in a pipe line which are controlled by the means energized on the occurrence of resonance produced when the ferromagnetic float passes into the coil or one of the coils surrounding the tube in which it floats.
Patent GB-756262-A (GB)
Title: Improvements in or relating to air-conditioning apparatus
Inventor: HALL SYDNEY
IPC: F24F13/062
Filed: 1954-07-14
Abstract: 756,262. Diffusers. HALL & KAY, Ltd. June 24, 1955 [July 14, 1954], No. 20521/54. Class 137. A diffuser, for an outlet in a duct carrying air under pressure, comprises a casing, of rectangular section having side' walls 12 with inclined upper edges which provide an oblique air outlet opening and support the ends of four spindles 15 extending across the opening, vanes 16-19 being fixedly or pivotally mounted on the spindles 15 and the vanes 17, 18, 19 each having riveted thereto four pairs of angularly adjustable sheet metal equalising vanes 20, 21, for deflecting, e.g. fanwise, a portion of the air issuing from the diffuser. Each pair of vanes 20,. or 21, formed by bending a single metal plate to a U-shape in section, is pivotally secured by a single rivet 22 passing through its base 23 and through the associated flap. The vanes 20, 21 may be formed of individual L-section elements, and they may carry plates for attachment to the vanes.
Patent GB-335641-A (GB)
Title: Improvements in or connected with skeleton girder or beam structures
IPC: E04B7/02
Filed: 1929-07-04
Abstract: 335,641. Wilson, H. R. July 4, 1929. Roofs; girders.-A braced girder 2, Fig. 3, of triangular section with apex downwards, extends in one or more lengths along the ridge of a roof, either or both of the upper booms 4, 5 replacing the usual purlins. The booms 4, 5 consisting of angle or other irons, are joined together by bracing 14, and by bracing 8 to a lower boom 3, such as a tee iron, which may form a track for lifting tackle. The girder is joined by plates 10 to the principal trusses 1. A similar girder may be applied at the eaves, as shown in Fig. 5.
Patent GB-585747-A (GB)
Title: Oil and water separating system for association with air compressors
IPC: F04B39/16
Filed: 1944-10-24
Abstract: 585,747. Separating liquids by compressor apparatus. FREEMAN, W. R., and FITES, C. B. Oct. 24, 1944, No. 20633. [Class 8 (i)] A separator system, for use with an enginedriven compressor, comprises a compressor 5 associated with an oil dome 10 from which the compressed air is conducted by a conduit 11 to an oil separator 12, and from there the oil-free air is led by a conduit 18 to a water separator 19 which is in turn connected to an air-tank 15 by a conduit 20. The separator 12 is situated close to the engine 1 to ensure a sufficiently high temperature to prevent extraction of water from the mixture while the oil is being separated, and the separater 19 is adjacent a radiator 2 of a cooling system, thus increasing condensation of the water vapour.
Patent GB-686988-A (GB)
Title: Improvements in or relating to packaging systems
IPC: B65B67/00
Filed: 1949-08-09
Abstract: 686,988. Packeting; paper and like bags. COMMUNICATION ENGINEERING PTY, Ltd., Aug. 9, 1949 [Aug. 16, 1948], No. 20702/49. Classes 94(i) and 94(ii) Apparatus for facilitating the packeting of articles in bags comprises in one form, Fig. 1, a channel 1 for the storage of a stack of nested carrier bags 5 in the open condition, which stack is urged towards the mouth of the channel by a slidable carriage 11, coupled by a cable 13 to a weight 14. Each bag is provided with cord handles forming loops on the exterior of the bag, the upper loops 6 being passed over a bar 3 supported in brackets 4. The mouth of the channel is partially closed by a hinged retaining flap 7 fitted with a spring 10 which engages the end of the bar. In use, articles assembled on a platform 16 are scooped into the leading bag and the filled bag removed from the channel by inserting a hand through a slot 9 in the flap 7 and pulling the upper loop of the bag clear of the bar. Simultaneously with the removal of the bag, the stack of bags is advanced by the carriage until the next bag engages the flap. The weight 14 is coupled to a spring 15 to compensate for the reduction in the frictional resistance to the movement of the carriage as the bags are removed. To facilitate reloading of the apparatus with a fresh stack of bags, the bar 3 may be arranged to pull out; alternatively the bags may be assembled on a tube which is slid over the bar and subsequently removed. As shown in Fig. 2A, the cord forming the bag handle is passed through a slot in a reinforcing member 17 and through holes in the bags to form the loop 6, the loop being pulled through the bag material 19 when it is desired to use the handle for carrying purposes. In a modification, Fig. 3A, the bar 3 and spring 10 are omitted and each bag is provided with a cardboard retaining lug 20. In a further modification, Fig. 4, inward movement of the bags when articles are inserted in the leading bag is prevented by a spring-loaded catch 21 which engages the lower loop 6 of the leading bag. Successive bags in the stack may be fluted on opposite sides to prevent the formation of a vacuum between the bags. Alternatively, the bottoms of the bags may be perforated or a stream of air may be passed over the bags when one is being removed.
Patent GB-938721-A (GB)
Title: Screwdriver
IPC: F16B23/00
Filed: 1962-05-29
Abstract: 938,721. Screwdrivers. R. BARANY. May 29, 1962, No. 20714/62. Class 61. [Also in Group XXV] A screwdriver, adapted for use with a screw having a socket in addition to at least one slot, comprises a shank 6, a blade 8 projecting from one end of the shank, a pin 7 projecting from the end of the shank and secured thereto or formed integrally therewith, the pin being slotted at 13 to receive the blade 8 which extends laterally beyond the pin. As shown, the shank 6 has at one end a centrally disposed bore 10 adapted to receive the pin 7, the bore 10 having slots 11 which are arranged to register with the slots 13 in the shank when the screwdriver is assembled and the blade inserted in the slots. The assembly is held by a retaining ring 9 which engages a circumferential groove 14 in the shank and nicks 15 in the blade. An alternative retaining means, Fig. 6 (not shown), comprises a flanged cap adapted to fit tightly over the outermost portion of the shank 6 and having an aperture adapted to fit over the pin 7 and lateral extensions of the blade therebeyond. In another modification, Fig. 7 (not shown), the pin and shank are integral being made of the same piece. U.S.A. Specifications 1,797,390, 2,431,628 and 2,522,164 are referred to.
Patent GB-896117-A (GB)
Title: Fibrous plastic compositions
IPC: D21H17/34
Filed: 1959-06-17
Abstract: A fibrous plastic composition is produced by dispersing a finely divided compound of an organic acid such as stearic acid and a thermoplastic synthetic resin in an aqueous fibre pulp with a pH up to 7, adding an aqueous emulsion of a softener and/or a swelling agent, adjusting the pH value up to 6 with an addition of Al2(SO4)3 to form a fleece which is then dried and hot pressed.  The synthetic resins specified are PVC, polystyrene, polyacrylnitrile and polyacrylates, and stabilizers such as the stearates of Pb, Sn, Na and Ca are added with the PVC. The resin-acid compound is added to the pulp as a powder or an aqueous dispersion and the softening and swelling agents such as tricresyl phosphate, dioctyl phthalate and perchlorethylene are added as an emulsion in a saponified stearic acid solution.  Water insoluble dyes and insecticides may also be added to the pulp which consists of wood, paper, cellulose or asbestos.ALSO:A fibrous plastic composition is produced by dispersing a finely divided compound formed from a high molecular weight organic acid, such as stearic acid, and a thermoplastic hydrophobic polymerization synthetic resin, in an aqueous fibre pulp with a pH of up to 7, adding an aqueous emulsion of a softener and/or a swelling agent to the dispersion and then adjusting the pH to a value of up to 6 by the addition of a metal salt and forming a fleece which is then dried and hot pressed. The synthetic resin components specified are P.V.C. compounds, polystyrene, polyacrylnitrile, polyacrylates with the exception of elastomers and with the P.V.C. resins stabilizers such as the stearates of P6, Sn, Na or Cd may be added.  The resin is finely divided and stearic acid is added, the mixture is dried and ground and then added to the fibrous pulp as such or as an aqueous dispersion.  The fibres specified are wood, paper, cellulose or asbestos and the aqueous emulsion of the softener and/or swelling agent is formed by partially saponifying stearic acid and emulsifying a mixture of tricresyl phosphate or dioctyl phthalate and perchlorethylene in the stearic acid soap solution.  The pH value of the pulp resin dispersion is adjusted by the addition of AL2(SO4)3 and the fleece is deposited on a conventional paper or fibreboard machine, dehydrated, dried and then pressed or rolled.  Water insoluble dyes and insecticides may be added to the fibre pulp and laminate may be formed by pressing the formed fleece on to foils of thermoplastic or thermosetting resins.
Patent GB-674592-A (GB)
Title: Improvements in embroidery sewing machine
IPC: D05B53/00
Filed: 1950-08-22
Abstract: 674,592. Sewing-machines. PRAZAK, E., and KIERNER, A. Aug. 22, 1950, No. 20777/50. Class 112. Surface threads, attaching; multipleneedle machines.-A machine having a row of needles 17 driven from a shaft 14 has means for laying a surface thread or threads, to be secured by the stitching,' comprising at least one distributor member 29 carried in front of the needles by arms 32 extending from a slide rod or rods 26 which is or are mounted in a bearing at the rear of the machine head and reciprocated in timed relation to the shaft 14 to lay the thread or threads in a pattern on the work. In the machine shown, twelve needles 17, making straight lines of stitching, are fed with threads S through individual tension devices 20, arranged on a bar 19 fixed across the machine, and guides 22, 23, and an equal number of embroidery threads E are led through individual tension devices 37, on a bar 36 carried by a bracket extending to the rear of the machine, and guides 38, 39 to selected horizontal holes in any of three distributors 29, whence they issue in line with the needles 17 and by which they may be shifted laterally in groups to produce a pattern when they are secured by the stitching produced by the needles. 'The distributors 29 rest on the presser-foot, being prevented from lifting by lugs 18 on the foot, and are secured to individual slide-rods 26 arranged one behind the other in a bearing bracket on the back of the machine head and attached by universal joints to connecting rods 56, adjustable in length, which are actuated through follower levers such as 50, 55 by cam tracks in a cam-disc 48 driven through worm gearing from a shaft 14' in line with the shaft 14 and coupled thereto by a collar 72 with set-screws providing a releasable connection to the shafts to permit adjustment of the cam-disc relative to the needle-driving, mechanism. Two of the follower levers engage opposite sections of the same cam-track to impart to the groups of threads E controlled thereby equal and opposite lateral movements.
Patent GB-951325-A (GB)
Title: Improvements relating to pulping processes
IPC: D21C3/22
Filed: 1960-06-14
Abstract: In the digestion of wood with an aqueous liquor which contains a water-soluble inorganic sulphide or a water-soluble inorganic sulphite as an active digesting ingedient, a small proportion of an organo-polysiloxane or of an organo-silicon compound which is hydrolysable and condensable to an organo-polysiloxane under the conditions of the process is added to the aqueous liquor.  The active digesting ingredient may be sodium sulphide or sodium sulphite.  The wood pulping process may be a sulphate process, a modified soda process in which the aqueous digesting liquor contains sodium sulphide, or a neutral sulphite process.  The proportion of organo-silicon compound added may be from over one gram up to 50 grams per ton of bone dry wood.  The compound may be a dimethylpolysiloxane added in a proportion of 3 to 15 grams per ton of bone dry wood or may be a halogenated organo-polysiloxane compound.  The compound may be a derivative of at least one organo-silanol having the general formula RnSi(OH)4-n wherein R is a hydrocarbon or simple substituted hydrocarbon radical connected to the Si atom by a carbon-silicon linkage, and is either an alkyl, aryl, alkaryl, arylalkyl, alkenyl, cycloalkyl, cycloalkemf or a heterocyclic radical containing less than 20 carbon atoms, the substituents being selected from halogen atoms and hydroxyl, alkoxy, aryloxy, carboxyl, amino, acetamino, sulphonic and nitro radicals, and n is 1, 2 or 3.  The organopolysiloxane material may have the general formula <FORM:0951325/D1-D2/1> wherein R is a hydrocarbon radical, such as methyl, ethyl, propyl, isopropyl, butyl or isobutyl, and n is an integer from 2 to about 2000.  The organo-silicon compound may be added in admixture with a hydrocarbon oil such as Kerosine.
Patent GB-285737-A (GB)
Title: Artificial leg
IPC: A61F2/64
Filed: 1927-08-08
Abstract: 285,737. Winkler, G. Aug. 8, 1927. No Patent granted (Sealing fee not paid). Artificial limbs.-A knee-joint for artificial legs comprises two pressure rods h carried on the thigh part a and two pull rods m hanging from the axle b which is carried in a roller bearing. The setting of the bearing is done by screws f<1> acting upon the cover i of the bearing. The rods h, m are hinged to links g and are constrained to move along arcuate slots l in the central piece c connecting the thigh to the lower leg. The axle b is prevented from rotating by means of a screw connecting it 'with the thigh portion so that on bending the leg the central piece is able to stretch a short distance depending upon the position of the linkwork.
Patent GB-504817-A (GB)
Title: Improvements relating to blocks for road surface marking
IPC: E01F9/07
Filed: 1937-07-29
Abstract: 504,817. Road surface markings. SHAW, P. July 29, 1937, No. 20973. [Class 3 (ii)] In a road-surface marking block such as described in Specification 457,536, in which a filling c of resilient material such as white or brightly coloured rubber, is partially supported within a metal holder A so as to yield when travelled over by a vehicle wheel and sink to the level of the road surface, and reflectors B embedded in the walls of the filling are automatically cleaned by the movements to which the filling is subjected during its use, the walls of the holder adjacent the reflectors are raised to constitute guards a<1>, gaps being formed therein through which the reflectors can be seen. A ledge c<1> on the filling shields the reflectors from unwanted light rays. Lips c<2> on fixed parts of the filling separate from the main body thereof, serve as wiping surfaces for the reflectors. Specification 436,290 also is referred to.
Patent GB-1506873-A (GB)
Title: System for disseminating colour television audio-video signals
IPC: H04N9/86
Filed: 1975-05-16
Abstract: 1506873 Television THOMSON-BRANDT 16 May 1975 [21 May 1974] 20996/75 Heading H4F A P.C.M., S.E.C.A.M. signal is developed for recording or transmitting by: forming a combined chrominance/audio signal (CH/S) which is modulated on a subcarrier f 2 , 31, Fig. 2; modulating a carrier f 1  with the luminance component Y, 32; mixing the signals f 1  and f 2  to form S A (t)=a 1  sin 2#f 1 t +a 2  sin 2#f 2 t (a, constant) the ratio k 2 =a 2 /a 1 , being less than unity, 33; applying S A (t) to a trigger circuit to produce the PCM signal 36. The invention resides in the selection off, according to criteria defined below, to overcome cross modulation defects. The PCM signal 36 derives from zero crossings of S A (t), 33 but errors 34 in the reference level used in the trigger circuit result in the modified PCM signal 37. Fig. 4 shows the frequency spectrum partially in accordance with the invention. The spectrum contains odd components 42, f 1 Œ k 1 f 2  (k 1  = 1, 3...) and even components 41, f 1  Œ k 2 f 2  (k 2  = 2, 4...). The odd components 42 only exist when error 34, Fig. 2 exists. To ensure these lie outside the bandwidth of modulated carrier f 1 , f 2  must be at least equal to Y M  the maximum frequency of Y. Fig. 5 shows the complete spectrum from which it can be seen that to further avoid cross modulation defects f 2  must also lie outside the bandwidth of modulated carrier f 1 , i.e. /f 2 -f 1min /must be at least Y M , where f 1min  is the lowest instantaneous frequency of modulated carrier f 1 . Side bands 46 and 49 are necessary for reforming the original signal. A coder and decoder are described with reference to Fig. 1 (not shown) wherein the chrominance and audio signals are combined by inserting audio samples in the chrominance signal at the line frequency. The PCM signal may be recorded on a disc read by light beams or on a magnetic medium.
Patent GB-1487732-A (GB)
Title: Mirrors
IPC: G02B7/182
Filed: 1974-09-18
Abstract: 1487732 Mirror assembly R P HICKMAN 18 Sept 1974 [19 Sept 1973 24 May 1974] 21133/77 and 21134/77 Divided out of 1487731 Heading G2J The subject matter of this Specification is identical to that of Parent Specification but the claims are directed to the folded construction of mirror, arm and body.
Patent GB-1205548-A (GB)
Title: Improvements relating to brake systems
IPC: B60T8/42
Filed: 1969-04-25
Abstract: 1,205,548. Anti-skid brake systems. ROBERT BOSCH G.m.b.H. 25 April, 1969 [27 April, 1968], No. 21142/69. Heading F2F. An anti-skid device 3, for an hydraulic brake system, inserted in a line between master and slave cylinders, comprises a check valve 9 which is normally held open, but which when closed isolates a master pressure chamber 5 connected to a master cylinder via a line 1 from a slave pressure chamber 6 connected to a slave cylinder via line 2, a floating piston 7, of which opposite faces are exposed respectively to the master and slave pressure chambers, for operating the valve 9 and a servo-device 16, comprising a diaphragm piston 17 responsive to wheel lock, to move the piston toward chamber 5 to seat the valve 9 and hence release the brake. Wheel lock is sensed by a sensor which actuates a solenoid valve to connect to atmosphere a chamber 19 which was previously placed under vacuum. In a modification the floating piston is a solid plunger.
Patent GB-617113-A (GB)
Title: Polygonal watch-case
IPC: G04B37/08
Filed: 1946-07-16
Abstract: 617,113. Watches. SCHMITZ. W. July 16, 1946, No. 21243. Convention date, April 26. [Class 139] In a watch a member 5 forming a combined case band and bezel presses the edge of a glass 6 against the upper face of a member 3, of angle-shaped section, which abuts the dial 10. The member 3 fits on a movement supporting-frame 2 fixed to the back 1, the back being pressed on to the case band and bezel 5 and held by the aid of a notch 11.
Patent GB-864201-A (GB)
Title: Improvements in or relating to internal shoe-drum brakes
IPC: F16D65/09
Filed: 1958-07-03
Abstract: 864,201. Internal shoe-drum brakes. VOIGT, C. A. July 3, 1958, No. 21312/58. Class 103 (1). In an internal shoe drum brake in which the brake shoes are both mounted for pivotal movement about a common axis and an elastic medium is provided in the common anchorage to permit the shoes to yield and to be applied uniformly against the inside of the drum, each shoe extends half-way round the drum. Fig. 2 illustrates an anchorage for the brake shoes 2 in which a sleeve 11 of elastic medium such as rubber is positioned between the sleeve member 10 mounted on an anchorage pin 1 secured to back-plate 9. The two members 1 and 10 may be connected by the elastic material by subjecting the latter to an adhesive fusing treatment. Fig. 5 shows an alternative embodiment wherein the anchorage member 13 is secured to the brake back-plate 9 by means of an interposed elastic layer 11. Alternatively the anchorage member may have the shape of a cup which embraces the elastic material and attachment means are provided for fixing the brake backplate.
Patent GB-486267-A (GB)
Title: Improvements in or relating to liquid fuel feeding devices for burners
IPC: F23D11/44
Filed: 1937-08-03
Abstract: 486,267. Regulating liquid levels. LAMPENUND METALLWARENFABRIKEN R. DITMAR GEB. BRUNNER AKT.-GES. Aug. 3, 1937, No. 21354. Convention date, Aug. 5, 1936. [Class 123 (i)] [Also in Group XI] The closure member 17 of the filling opening of the liquid-fuel tank 1 is formed with a projection 18 which, when the closure member is in position, opens a valve 22 against spring pressure to allow the fuel to pass through a pipe 2 to a burner 43 to a constant level A determined by the opening 3 of an air conduit 4 which may be formed by a bore in the projection 18. The constant level may be varied if several independently controlled air conduits 4 opening at different levels are provided. Flooding of the burner if the closure member is not tight may be prevented by the provision of an inner tube 27 extending downwardly to near the level A. In a modification the projection 18 is fitted with a piston arranged immediately above the opening 3 so as to expel the liquid from the tube 27 when the cover 17 is placed in position. In another modification the valve 22 is opened by a rod guided by projections in an air pipe 18 projecting downwardly from the closure member.
Patent GB-424323-A (GB)
Title: Improvements in and relating to dust-bins
IPC: B65F1/16
Filed: 1934-07-21
Abstract: 424,323. Dustbins. LOFFLER, H., 13, Wickenburggasse, Vienna. July 21, 1934, No. 21375. Convention date, July 22, 1933. [Class 26] [See also Group XVII] The upper part of a dustbin is shaped at b, m, to form an inclined outlet shoot having a closure e adapted to be opened by means of the main bin handle h, through members l. The closure is also provided with a handle g, and has flanges adapted to abut against flanges on the bin to form a dust tight closure. The bin bottom is removable and rests on angle-iron supports, and the bin has an additional handle t at the lower portion of its back.