baber/WOPTO huggingface dataset:
Patent GB-703371-A (GB)
Title: Improvements in protective arrangements for high voltage capacitors
IPC: H02H7/16
Filed: 1951-06-18
Abstract: 703,371. Protective cut-out arrangements. OSTERREICHISCHE ELECKTRIZITATSWIRTSCHAFTS AKT.-GES. June 18, 1951 [Aug. 4, 1950], No. 14363/51. Class 38(5) A high-voltage oil-immersed capacitor 1 is protected by a light source 8 mounted on the capacitor casing 3 which is at a high potential to earth, the light source acting on a photocell 11 in a low voltage protective circuit at earth potential. The supply for the light source 8 is obtained from a secondary winding 5 of a discharge choke 4 connected across the capacitor 1. The light source 8 is connected to the winding 5, either directly or through an intermediate transformer 7 and if desired through a barretter 9. A switch 10 responsive to the temperature or pressure in the casing controls the light source 8. Alternatively the arrangement shown may be duplicated, one arrangement being controlled by a temperature-responsive switch and the other by a pressure-responsive switch.
Patent GB-592930-A (GB)
Title: Improvements in or relating to electronic discharge devices for producing ultra-highfrequency electrical oscillations
IPC: H01J25/06
Filed: 1943-09-02
Abstract: 592,930. Velocity-modulated tubes. WESTERN ELECTRIC. CO., Inc. Sept. 2, 1943, No. 14383. Convention date, April 4, 1941. [Class 39 (i)] In a velocity modulated tube of the kind in which two gaps 18, 19 are formed within a single resonator by a drift tube 17, the entrance and,exit apertures are formed in discs 13, 14 sealed through the envelope and engaging a two-part casing 21, 22 forming the remainder of the resonator. Preferably the parts 21, 22 are semi-cylinders clamped together and to the discs by rings 27, 28 which also clamp cylindrical magnetic polepieces 25, 26 cradled in recesses 46, 47 in the permanent focussing magnet 45. The electron gun 11 focuses the beam in the input gap 18, and the magnetic field re-focusses it in the output gap 19, the drift tube 17 being made barrel-shaped to follow closely the shape of the beam in between. The D.C. connection of drift tube to resonator is made by lead 20, flexible lead 30 and a clamping screw. Adjustable tuning screw-plugs are provided. In modifications the single lead 20 is replaced by three equally-spaced leads or by a disc. Casing 22 is screwed at 48 to magnet 45. The electron gun comprises a concave cathode 49, Fig. 3, heated by coil 50, focussing sheath 51 at cathode potential, and cylindrical anode 52 with a frusto-conical aperture 52a ; spaces 52c are left for assembly purposes. The potentials are supplied by a battery shunted by potential dividers and where high output is required the collector 12 is connected directly to the positive pole of the battery to keep collector current out of the dividers.
Patent GB-597586-A (GB)
Title: Improvements in or relating to photoelectric cells
IPC: H01L31/00
Filed: 1945-06-07
Abstract: 597,586. Photo-electric cells. SANGAMO WESTON, Ltd. June 7, 1945, No. 14419. Convention date, Aug. 26, 1944. [Class 40 (iii)] In a photo-electric cell of the barrier layer type comprising a circular disc electrode 1, of iron or a ferrous alloy, a light-sensitive layer 2 and a translucent outer electrode layer 3, there is provided a small central aperture through which a cable 6 is led to effect electrical connection with the layer 3 at substantially the centre thereof. A small diameter and small area rib or ring 4 of cadmium or a soft metal is deposited on layer 3 around the central aperture by a metal spraying process and the strands 5 of the flexible conductor 6 are separated and bent outwardly to overlie the ring 4 to which they are mechanically and electrically connected by weld metal or solder 7. Conductor 9 provides electrical connection with the back electrode 1 to which it is also secured by weld metal or solder 10. A spring terminal connection may be made to the ring 4 instead of the method described.
Patent GB-163712-A (GB)
Title: Cages for oil presses
IPC: B30B9/26
Filed: 1921-05-24
Abstract: 163,712. Murray Co., (Assignees of Henry, N. B.). May 25, 1920, [Convention date]. Fatty oils, extracting by pressure. Cages for oil presses comprise a ring or superposed rings 2 having vertical holes 4 from face to face connected to the space 3 for the cakes by slots 5, the rings being held with the slots or holes in alignment by a tightly-fitting sleeve 1. Preferably the holes 4 are broached towards the space 3, and the ring surface at each hole is swaged or rolled down as shown at Fig. 4.
Patent GB-670241-A (GB)
Title: Improvements in and relating to electric discharge tubes
IPC: H01J35/16
Filed: 1948-05-28
Abstract: 670,241. Glass compositions. BRITISH THOMSON-HOUSTON CO., Ltd. May 28, 1948 [May 29, 1947], No. 14498/48. Drawings to Specification. Class 56. [Also in Group XL (a)] A glass consists of specified proportions of silica (SiO 2 ) and boric oxide (B,O,), together with the oxides of sodium (Na 2 O), aluminium (Al 2 O 3 ), iron (Fe 2 0 3 ), cerium (CeO), and also preferably antimony (Sb 2 O 3 ). It is stated that this glass possesses a combination of physical properties rendering it especially suitable for X-ray tube envelopes, said properties being dielectric strength and dielectric constant, resistivity, X-ray transmissivity, annealing and softening temperatures, strain point and power factor, all of specified values. In addition, the glass has a low discoloration rate, and a coefficient of expansion such that it readily seals to nickel-steel or nickel-iron-cobalt-manganese alloys of specified composition.
Patent GB-653919-A (GB)
Title: Improvements in transmitters with frequency modulation
IPC: H03C3/40
Filed: 1948-05-28
Abstract: 653,919. Frequency modulation. TELEFONAKTIEBOLAGET L. M. ERICSSON. May 28, 1948, No. 14540. Convention date, May 28, 1947. [Class 40 (v)] The frequency of an oscillator F1 is modulated by modulating the amplitude of the generated oscillations in a balanced modulator M, and feeding back the amplitude-modulated oscillations amplified at F2 to the tuned circuit LC of the oscillator. A phase-shifting network FV is arranged so that the amplitude-modulated current is 90 degrees out of phase with the normal positive feed-back current of the oscillator. It is shown that to obtain symmetrical frequency deviation on both half-cycles of the modulating signal, the corresponding modulated amplitude must differ. This is achieved by adjusting resistors R1, R2, Fig. 6, the modulating signals being applied at 9, 10, the oscillations at 5, 6, and the amplitude-modulated oscillations appearing at 7, 8. In analternative amplitude modulator, Fig. 10, a bias source U6 reduces noise since a certain threshold signal is required before frequency deviation begins, and resistors R5, R6 or R7, R8 adjust the output amplitudes. For frequency shift telegraphy the modulator, Figs. 8 and 11 (not shown), have resistors substituted for one set of rectifiers. Specification 617,139 is referred to.
Patent GB-477395-A (GB)
Title: Improvements in stabilising devices for aeroplanes
IPC: B64C3/54
Filed: 1936-05-22
Abstract: 477,395. Controlling aeroplanes. BILLIOQUE, E. J. H. May 22, 1936, Nos. 14562 and 14563. Convention dates, May 24, 1935 and March 3, 1936. [Class 4] A device designed to permit vertical flat descent of an aeroplane comprises a statically balanced plane 1, Fig. 1, pivoted in front of its centre of pressure on an axle 2 parallel to the pitching axis and of such size and so positioned that the effort produced at the front of the fuselage by its resistance to an upward vertical current of air counterbalances exactly with respect to the pitching axis the effort produced by the resistance of the tail plane 7 in the same current, a cable or stop being provided for plane 1 such that the plane floats freely in steady flight but contacts with the stop and becomes operative when the nose of the aeroplane drops as the result of a stall. The stop in this form is constituted by a normally slack cable 5 connecting plane 1 to control column 6. In another form, Fig. 3, plane 1 statically balanced by a mass 8 is limited in movement by an arm 9 mounted on axle 2 and adjustable through cable 10 by a hand lever 11. Mounted on supporting arm 3 is a further stop arm 12 connected to arm 9 by a return spring 14. Stops 13, 21 may incorporate resilient devices and cable 10 may incorporate a spring designed to yield if the load on surface 1 exceeds a pre-determined value. Arm 3 is rotatably mounted and is geared to the rudder bar so as to tilt surface 1 in sympathy with rudder movement. According to the Specification as open to inspection under Sect. 91 plane 1 may be positively controlled by the elevator control column and act as a forward elevator. In a modification, Fig. 8 (Cancelled) plane 1 is freely mounted for rotation between two stops and provided with a pendulum mass 8. The oscillations of the plane may be damped or controlled by gyroscopic or other automatic means. This subject-matter does not appear in the Specification as accepted.
Patent GB-378913-A (GB)
Title: Process for producing soft soaps
IPC: C11D13/02
Filed: 1931-05-16
Abstract: In the manufacture of soft soap in which fatty oils, such as soya bean, linseed or earth nut oils, are saponified under superatmospheric pressure and at a temperature above 100 DEG  C. with a mixed caustic lye in which the proportion of caustic potash to soda does not exceed 90 : 10, alkali metal salts in the proportion of 2 to 6 per cent are added to the saponification mixture.  Salts such as sodium or potassium chloride, carbonate, or sulphate, or solutions of these, are added either to the raw materials or preferably to the saponified mixture, whereby a salve-like consistency is imparted to the soft soap.
Patent GB-352627-A (GB)
Title: Apparatus for stropping safety razor and like blades
IPC: B24D15/08
Filed: 1930-05-13
Abstract: 352,627. Stropping-apparatus. TORRY, H., 48, Muskoka Drive, Sheffield. May 13, 1930, No. 14655. [Class 60.] Apparatus for stropping safety razor and like blades within a drinking glass or a hollow cylinder of glass or other material, consists of a cranked spindle A mounted to rotate in a bearing C carried by a disc G, the spindle having thereon a bladeholder E and having a knob F for rotating or oscillating the blade in contact with the cylinder. The holder E may comprise a pad or rubber or leather mounted on wood, or may be a permanent magnet; it is adjustable along the spindle. The disc G may be of rubber or other elastic material and may have therein grooves H to increase its elasticity and adaptability for different sizes of cylinder ; a modified form of disc consists of a metal disc K with adjustable pads L or concave suction grips. When an open cylinder is used, a closely fitting surrounding container of metal, cardboard, &c., having a closed end may be placed over the cylinder.
Patent GB-593305-A (GB)
Title: Improvements in or relating to electrical connectors
IPC: H01R13/193
Filed: 1945-06-09
Abstract: 593,305. Two-part couplings. WELDING RODS, Ltd., and HAWORTH, F. H. W. June 9, 1945, No. 14671. [Class 38 (i)] To .prevent the accidental withdrawal of the plug from a plug-and-socket connector, the bifurcated plug limbs are expanded to grip the sides of the socket by means associated with the connector and lying within the socket, but operable from outside the connector. As shown, the limb 22 of the plug 10 has a grub screw 11 which is operable externally through a hole 30 in the socket 12, the screw length being such that when the limbs are not stressed the plug can be easily withdrawn. A guide 31 in the socket co-operates with the bifurcation 21 to align the screw 11 and the hole 30. The Provisional Specification describes a plug with markings to indicate which side engages with the guide. The socket has an insulating sleeve 13 secured thereon which embraces a corresponding insulating sleeve 14 on the plug member, a hole 35 being provided in the sleeve 13 to give access to the grub-screw. The grub-screw may be replaced by a cam which distends the plug-limbs to grip the socket, Fig. 5 (not shown). Alternatively, the grub-screw has a smooth extension which engages a hole in the other limb, the overall length being such that when unstressed the plug can be easily withdrawn, Fig. 3 (not shown). Another modification, Fig. 4, has a wedge 45 operated by an eccentric extension 47 and a rotatable pin 48 in the plug recess 49.
Patent GB-925204-A (GB)
Title: Furniture joint fittings
IPC: A47B13/04
Filed: 1960-04-27
Abstract: 925,204. Furniture joints. B. A. S. SVENSON. April 27, 1960, No. 14683/60. Class 52 (2). In furniture such as tables &c. having arches 1 and legs 2 connected by battens 3, 4, 8 and a wire lattice frame 10, the lateral wires 10a of the lattice are connected to the legs 2 by means of hook parts 12 fitting in recesses in the legs and engaged by screws 11 which screw into threads in parts 12.
Patent GB-544370-A (GB)
Title: Improvements in or relating to spinners and nose caps for airscrews
IPC: B64C11/14
Filed: 1940-10-02
Abstract: 544,370. Airscrew spinners. CONSTANT SPEED AIRSCREWS, Ltd., and McGLASSON, R. Oct. 2, 1940, No. 14815. [Class 114] [Also in Group XXII] An airscrew spinner is made of a material having a Brinell hardness value prior to heat treatment of between 150 and 400 and capable of being spun or pressed into the form of a thin shell of aerodynamic profile which will resist penetration by a projectile without appreciable deformation. This material may be' steel, chromium, nickel, or a chromium or nickel alloy. The spinner may be covered or lined with a similar metallic material, or with a non-metallic material such as glass, earthenware, porcelain or other ceramics, synthetic plastics, or natural or synthetic rubber with or without reinforcement. Such covering or lining may have a Brinell hardness value of over 500, and it may be applied to electro deposition, welding, spraying, moulding, or enamelling. According to the Provisional Specification the spinner may be made of copper or a copper alloy.
Patent GB-692206-A (GB)
Title: Improvements in or relating to means for marking roadways and the like
Inventor: BOARD MILNER HALL
IPC: E01F9/06
Filed: 1950-06-15
Abstract: 692,206. Road-marking blocks. SPEAKER & CO., Ltd., G. R. Nov. 2, 1950 [June 15, 1950], No. 14993/50. Class 87(i) [Also in Group XVIII] Road marking means comprise a strip or block of rubber, or like resilient material with a flange 8 projecting from the lower part of each side face 9 and channels 3 in the lower face 4, the channels and flanges extending longitudinally of the strip and all the channels in cross-section comprising a curved crest merging into curved side walls, all the side walls meeting the lower face at an acute angle. Ribs 6 are provided in the channels and on the flanges and side faces. The flanges are preferably tapered and the upper surface 2 of the strip convexly curved. Wire dowels extending transversely of the channel and retained in holes in the strip or project outside are used for fixing.
Patent GB-660427-A (GB)
Title: Improvements in drying machines for grass and other crops
IPC: F26B11/04
Filed: 1949-06-07
Abstract: 660,427. Drying grass &c. PETRIE & McNAUGHT, Ltd., WALSH, J., and DAWSON, H. June 7, 1950 [June 7, 1949], No. 15094/49. Class 34(ii) In drying apparatus having a revolving drum d through which the grass is fed together with a current of hot air, there being baffles in the drum to cause the air and grass to take a circuitous path, the drum has a continuous internal baffle f in the form of a helix of gradually increasing pitch which baffle rotates with the drum. The baffle may be of continuously curved form and the drum of frusto-conical form or the baffle may be formed in stepped radial lines 90 degrees apart as at g in a cylindrical drum, the axial length of the steps increasing gradually along the length of the drum. The drum may also have on its internal surface plates parallel to the axis of the drum to exert a tumbling action of the grass.
Patent GB-435425-A (GB)
Title: Improvements in and relating to water softening or filtering apparatus and the like
IPC: C02F1/42
Filed: 1934-05-18
Abstract: 435,425. Softening water; filters. JENKINS, C., 3a, Kilmorie Road, Forest Hill, London. May 18, 1934, No. 15098. [Class 46] [See also Groups XVII and XXVIII] A closure mem ber 15 for a base exchange water softener or filter 10 is formed with a flange 26 of flexible materia which is held against a seating 14 in the neck 12 of the aperture by the internal water pressure. As shown, the mem ber 15 is bell shaped and of rubber with meta shields 16, 16a on either side and a central aperture to receive a nipple 17 for connection to an outlet pipe 20. The inlet pipe 22 of the container 10 is connected to a tube 24 of gauze or slotted metal. A plate 25 of slotted metal is fixed across the neck 12 and a gauze strainer 19 surrounds the lower end of the nipple 17.
Patent GB-829285-A (GB)
Title: Improvements in or relating to frames for use in building construction
IPC: F16B12/04
Filed: 1955-05-25
Abstract: 829,285. Frames for doors and windows. AUSTIN, F. B. May 25, 1956 [May 25, 1955; July 21, 1955], Nos. 15109/55 and 21167/55. Class 20(3) [Also in Group XIV] A front frame, e.g. for a fitted cupboard in a domestic building, comprises two stiles 1, 2, carpet and frieze rails 3, 4 and a top rail 5, all of which are of the section shown in Fig. 2. The carpet and frieze rails 3, 4 are connected by mortice and tenon joints 6, 7, the top rail 5 having end grooves 10 which slidingly engage tongues 11 on the inner sides of the stiles. The length of the stiles 1, 2 is preferably equal to, or slightly greater than, the design maximum for the type of building for which the frame is designed. During the initial assembly of the frame the top rail 5 is slid between the stiles 1, 2 and secured in the desired position, the space between the top and frieze rails 5, 4 being fitted e.g. with a hardboard panel 12. A door 8 is hinged to each of the stiles 1, 2. In a modification all of the frame members are formed of the section shown in Fig. 4. The upper rear face of each stile is reduced at 21, each end of the top rail 17 being slotted and cut to provide tongues 22, 23 to fit into recesses 18, 21 respectively in the corresponding stile. The top rail may be slid along the stiles to a degree depending upon the length of the reduced portions 21.
Patent GB-645462-A (GB)
Title: Improved device for facilitating the giving of change
IPC: G07D1/00
Filed: 1948-06-04
Abstract: 645,462. Spring clips. SAYER, J. M. June 4, 1948. No. 15127. [Class 44] [Also in Group XVIII] A device for facilitating change-giving, e.g. by omnibus conductors, and comprising a number of coin receiving tubes from the upper slotted ends of which coins can be manually withdrawn, is slidably and detachably mounted on a spring clip by which it is secured, e.g. within a change-bag. The tubes 1 are secured to upper and lower plates 3, 2 whose edges are turned inwardly to form slides 11, 12 adapted to be received in guideways 13 formed between the rear limb of an inverted U-clip 15 and a plate 14 riveted thereto. The clip 15 is formed with internal protuberances 17 and a semi-circular lower edge 16 to grip the wall of a leather change-bag. Apertures 18 opposite the rivets 19 also increase the grip.
Patent GB-552067-A (GB)
Title: Improvements in or relating to looms with stationary weft supplies
IPC: D03D35/00
Filed: 1941-11-24
Abstract: 552,067. Shuttleless looms. CLUTSOM, C. Nov. 24, 1941, No. 15129. [Class 142 (ii)] In a shuttleless loom in which a thread guide 2 or guides carry the weft to and fro through the shed and a knitting needle 3 interknits the loops formed by successive pairs of warps to form a selvedge, a flat plate 11 is arranged to support the needle laterally when the needle is advanced. The plate 11 may have an edge 10a forming a knocking-over edge, a noselike projection 11b providing the lateral support when the needle is advanced. The projection 11b also serves to direct the thread from the guide 2 on to the needle. A second projection 17 on the plate may be arranged to hold the weft at or near the fell of the fabric while the needle is advanced. In a modification, cam means are provided beneath the needle for deflecting it upwardly as it is advanced. Specifications 478,529 and 506,810 are referred to.
Patent GB-906861-A (GB)
Title: Process for the production of triethylene diamine
Filed: 1961-04-26
Abstract: Triethylene diamine is prepared by heating N-b -hydroxyethyl piperazine and/or N.N1-di-b -hydroxyethyl piperazine with a carboxylic acid to a temperature in the range 230-350 DEG C.  A suitable starting material is, for example, the mixture of N-b -hydroxyethyl piperazine and N.N1-di-b -hydroxyethyl piperazine obtained by adding ethylene oxide to piperazine.  The preferred carboxylic acids are aliphatic, aryl and dicarboxylic acids containing 8-16 carbon atoms, e.g. lauric acid, palmitic acid, fatty acid mixtures of vegetable oils, phenoxyacetic acid, phenylbutyric acid, phenylacetic acid, cinnamic acid, suberic acid, napthenic acids and phthalic acid.  If desired the process can be carried out in the presence of a high-boiling point solvent, e.g. aromatic, aliphatic and naphthenic mineral oils, alkylated or aralkylated benzene or naphthalene and ethers, particularly diphenyl ether, diphenylene oxide and benzyl naphthalene.  The process may be carried out intermittently or continuously and, if desired, an inert gas may be used to carry away the triethylene diamine.  The product may be purified by fractional distillation or by solvent extraction.