baber/WOPTO huggingface dataset:
Patent GB-438873-A (GB)
Title: Improvements in or relating to metal sockets, bushes, ferrules and the like
IPC: B25G3/12
Filed: 1934-02-16
Abstract: 438,873. Screw sockets. HALL & KAY, Ltd., HALL, S., and KAY, H., Stockport Road, Ashton-under-Lyne. Feb. 16, 1934, No. 5125. [Class 89 (i)] A metal socket, bush, ferrule, or the like for mounting in wood or other material is provided with a screw - threaded bore 13, a passage of smaller diameter, saw cuts 15 which extend into the threaded portion of the bore, and a slotted countersunk head 12. The inner and outer ends of the exterior are provided with quickly-pitched screws or other projections 17 of greater diameter than the hole 18, which are separated by a plain portion 20. When the socket is used in blind holes, the exterior of the inner end has circumferential teeth or other projections 22. The socket is first driven home in the hole by a screw-driver or hammer ; the inner end is then spread outwards by a tool 23, Fig. 11, comprising a cylindrical thread ending in a conical part which engages the shoulders 26 and spread the split end. The tool shown in Fig. 10 is used to hold the socket which may be finally secured by liquid wood, or a mixture of cement and powdered stone when used in blind holes. When the bore is not provided with a screw thread, the spreading of the divided end may be effected by driving down a punch-like tool with a tapered end.
Patent GB-400829-A (GB)
Title: Improvements relating to paints
IPC: C09D107/02
Filed: 1932-05-18
Abstract: A paint is made by adding a pigment to a vehicle formed by mixing gelatinous silica with a rubber latex solution and adding to it a solution of an alkali silicate.  The proportion of gelatinous silica in the mixture of gelatinous silica and latex solution lies preferably between the limits 33 per cent and 66 per cent.  The water in the latex solution may be replaced by a solution of borax or other alkali, and mineral or metallic fillers or pigments, such as lithopone or powdered aluminium, may be added.ALSO:A paint is made by adding a pigment to a vehicle formed by mixing gelatinous silica with a rubber latex solution and adding to it a solution of an alkali silicate.  The proportion of gelatinous silica in the mixture of gelatinous silica and latex solution lies preferably between the limits 33 per cent and 66 per cent.  The water in the latex solution may be replaced by a solution of borax or other alkali, and mineral or metallic fillers or pigments, such as lithopone or powdered aluminium, may be added.
Patent GB-557782-A (GB)
Title: An automatic electrical integrating and averaging device for a variable medium
IPC: G06G7/188
Filed: 1942-04-21
Abstract: 557,782. Supply meters. SIGMA INSTRUMENT CO., Ltd., LOXHAM, J., and BOOSEY, F. R. April 21, 1942, No. 5340. [Class 37] [Also in Group XXXVIII] An automatic electrical integrating and averaging device comprises two electromagnets M, M1 placed one above the other with a gap between them in which a conducting disc A can rotate freely, this disc also passing through the field of a permanent magnet PM. The voltage supplied to the electromagnets is varied in accordance with the factors constituting the variable quantity being measured and one or more counters D, E are arranged to operate in accordance with the direction and speed of the revolutions of the disc. A condenser X is connected in series with the electromagnet M1 for obtaining quadrature between the current in the coils M, M1. Alternatively a transformer may be connected in parallel with the coil M1. One or more additional pairs of electromagnets may be arranged to operate on the disc so that the effect of the currents in their coils is added algebraically to the motion of the disc. Additional coils may be mounted on the electromagnets. One of the two 'counters D, E shown is arranged to read positive increments and the other negative increments. A shutter may be arranged to obscure the counter not intended to be read. The instrument may be used for obtaining the heat value of gas passing a given point in a given time by integrating the product of the rate of flow and calorific value of the gas. The electromagnet M is fed with alternating current from a potentiometer PI, the sliding contact of which is moved in accordance with the pressure drop across an orifice plate or venturi in the pipe conveying the gas. The electromagnet MI is similarly fed from a potentiometer P2 controlled bv a calorimeter. Specification 549,249, [Group XXXV), is referred to.
Patent GB-234755-A (GB)
Title: Improvements in oil drums and the like
IPC: B65D47/26
Filed: 1925-02-27
Abstract: 234,755. Cory, P. G. Feb. 27, 1925. Spouts.-A device for the delivery of liquid from containers such as oil drums having the same purpose as that specified in Specification 225,062 comprises a delivery aperture 2 near the bottom of the container covered by an apertnred rotatable disc 4 upon which is mounted a delivery funnel 7 normally housed within a protective recess but capable of being turned to uncover the delivery aperture, the mounting being such that rotation of the apertured disc has no tendency to loosen it from its seat. This is accomplished by interposing between the tightening nut and the rotatable disc a non-rotatable washer 11, preferably a spring washer, which is kept in position by placing it on a squared non-rotatable spindle 5. A washer 13 is placed between the fixed part 3 and the movable disc 4 to give a tight joint.
Patent GB-1101492-A (GB)
Title: Improvements in and relating to fastener devices
IPC: A43C11/02
Filed: 1965-02-09
Abstract: 1,101,492. Strap fastenings; buckles. S. M. COLLINS. 9, Feb., 1965 [14, Feb., 1964], No. 5511/65. Heading E2A. A fastener comprises studs 26, 28 adapted to project from portions 20, 22 of a garment, a strip of material 50 adapted to join the portions under tension by means of fastener elements 40 each having an aperture 42 adapted to receive the head of a stud 26 or 28 and each having means to receive the strip 50 therethrough and positioned to exert pressure on the strip when the stud is received through the aperture. As shown, opposed flaps constituting the portions 20, 22 of a garment, such as a shoe, which are interconnected by a tongue element 24, are each provided with the studs 26, 28 which are adapted to snap-engage the apertures 42 in the fastener elements 40 and thereby to trap under pressure respective ends 52 of the strip 50 threaded through the elements 40. The strip may be a tape of fabric or plastics material. In other arrangements, Figs. 5 to 13 (not shown), the elements 40 are modified by the use of sliding bars or by the spacing of the upper and lower parts of the elements, with the object of improving the grip exerted on the tensioned strip.
Patent GB-136046-A (GB)
Title: Improvements in Vehicle Hoods.
Inventor: HALL FREDERICK HAROLD
IPC: B60J1/08
Filed: 1919-03-06
Abstract: 136,046. Hall, F. H. March 6, 1919. Hoods. - The side curtains of vehicle folding hoods are adapted to be turned up, without detachment or other move. ment of their upper edges, so as to lie against the roof part when not required. The curtains c may be stitched or riveted as at d to the roof part a, or they may be in one with it, or be secured by straps, clips, or buttons. When in use, they can be secured by straps f and turn. buttons g to the body. In the raised position, they can be secured by turn-buttons h on the hoop-sticks b. Instead of being turned up to lie beneath the roof part as shown at c<1>, they may be turned over on to the top of the roofing.
Patent GB-414793-A (GB)
Title: Improvements in stair rod eyes
IPC: A47G27/06
Filed: 1933-02-23
Abstract: 414,793. Stair-rod eyes. PEARSON (BIRMINGHAM), Ltd., J. R., and PEVERELLE, A. C., 63, Burlington Street, Aston, Birmingham. Feb. 23, 1933, No. 5576. [Class 52 (v).] In stair-rod eyes of the kind comprising an angle bracket 10 fixed to the stair and a retaining member 18 slidable on the bracket and normally covering the end of the rod 20, means are provided for limiting the endwise movement of the retaining member while allowing it to slide from its normal position to either side of the bracket, so that the same eye can be mounted on each side of the stair with the same portion uppermost. The eye is adapted for stone or marble stairs, the bracket 10 being fixed to a tang 14 cemented into the tread. A groove 15 is formed in one side 12 of the bracket and the other side 11 has an L-shaped member 17 fixed to it to form a lower groove 16. Inturned flanges 19 on the retaining member engage slidably in the grooves 16, 17 and a set screw 24 in one flange engages a closed slot 23 in the groove 15 to limit the sliding movement and prevent removal of the retaining member from the bracket. To hold the retaining member in the normal central position a spring-pressed plunger 26 pivoted in the groove 16 engages a recess formed centrally of the lower flange 19. A projection 22 on the bracket engages a recess in the rod to prevent endwise movement. The lower side of the groove 16 extends flush wth the adjacent surface of the retaining member.
Patent GB-893810-A (GB)
Title: Improvements relating to oscillators incorporating transistors
Inventor: REID ERIC ROBERT MCEWAN
IPC: H03B5/24
Filed: 1960-02-17
Abstract: 893,810. Frequency modulation; frequency shift signalling; transistor oscillator circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 2, 1961 [Feb. 17, 1960], No. 5649/60. Classes 40(5) and 40(6). A transistor phase shift oscillator comprises two transistors T1, T2 with opposite phase shift networks N1, N2 connected between collector and emitter of each and the output of each network connected to the base of the other transistor. Further, a modulation path including a transformer TR is connected between the emitter circuits, and the transformer secondary may be connected to a symmetrical transistor T3 so that depending on whether T3 is fully conductive or not the modulation path is effective or not to shift the oscillator frequency in accordance with D.C. telegraph signals of opposite polarity appplied to T3, the latter otherwise being only partially conductive due to the oscillator frequency. The main feedback, due to the D.C. path through resistor R14, is such that D.C. stabilization of the working point of the transistors is obtained by negative feedback and the capacitor by-passed resistors R1, R4, R8, R9, R12 serve to increase the D.C. gain. Load resistors R2, R3, R10, R11 may be about equal. In a modification inductors are included in series with resistors R5, R14 and resistors in series with capacitors C3, C7. The oscillator may be of voice frequency.
Patent GB-557013-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q1/446
Filed: 1942-04-28
Abstract: 557,013. Exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and BAKER, G. T. April 28, 1942, No. 5664. [Class 40 (iv)] In a system employing voice frequency signals for the setting up and supervision of a connection, the transmission line is normally, blocked to the signalling frequency at some point and the blocking means is neutralized by the arrival at that point of non-signalling frequencies, thus allowing speech to pass without interference. In Fig. 1, a filter rejecting the signalling frequency is cut out by the operation of a relay K which is connected to the line through a similar filter. For one-way operation the relay K may be connected to the output of the line filter. In Fig. 2, the filters F1, F2 are similar to those in Fig. 1, and the output of F2 controls a, variable attenuator SSD (made up of rectifiers for example) shunting the filter F1. In Fig. 3, the line includes a bead TSD of material such as uranium oxide or silver sulphide which when heated by the passage of non-signalling frequencies through its heater winding and a filter F3 changes its resistance rapidly from a high to a low value. In Fig. 4, the line is normally barred to all frequencies and is rendered operative by an echo suppressor ES which is controlled through a filter F4 passing only non-signalling frequencies.
Patent GB-556286-A (GB)
Title: Improvements in centrifugal gas cleaners
IPC: B04C5/04
Filed: 1942-04-28
Abstract: 556,286. Gas cleaners. INTERNATIONAL HARVESTER CO. OF AUSTRALIA PROPRIETARY, Ltd. April 28, 1942, No. 5685. Convention date, July 1, 1941. [Class 23] A cleaner for producer gas to be used in an I.C. engine has a permanently open inlet 20 to the annular separating chamber 7 and a second inlet passage 16, controlled by a loaded flap valve 25, which is opened by the increased suction for heavy loads. The passage 16 has two ports 18, 32 leading to the separating chamber. The central outlet tube 10 for clean gas is perforated and the gas is discharged at 11. A plate 12 directs the gas to the tube 10 and forms a trap for the separated dust.
Patent GB-663912-A (GB)
Title: Improvements in building construction members
IPC: E04B1/342
Filed: 1947-02-27
Abstract: 663,912. Building units; roofs; roofing tiles; doors; aircraft hangars. POOR, A. E. Classes 20(i), 20(ii), 20(iii), 20(iv) and 87(i)Feb. 27, 1947 [April 30, 1946], No. 5697/48. A building unit which may be used in the construction of aeroplane hangars, petrol pump islands, garages, workshops and bungalows, comprises a hexagonal upwardly convex roof supported by a central column 4, Fig. 2,3, and six radial cantilever trusses 1 which are connected together at their outer ends by marginal members 7. The roof frame is strengthened by tiebars 118, Fig. 2, so arranged as to detine a number of equilateral triangles and each of these is subdivided into four smaller triangles by purlins 12, Fig. 1, adapted to support and engage adjacent edges of triangular roof elements 9. Each element 9, Fig. 8, e.g. of aluminium sheet, may be formed with a central dome 10 from which ridges 11 run to the apices, and has turned down and inwardly flared edges 7a, Fig. 9, which engage in the U-shaped purlins 12. The top beams 2, Fig. 3, of the trusses 1 may have 'a similar U-shaped cross-section so that the triangular roof elements lying alongside the beams 2 may be clamped therein. The elements 9 have their apices meeting as, at 3, Fig. 1, each purlin 12, Fig. 12, terminating short of the centre of the joint and a central bolt 15 secures a cap 13 over the central aperture thus formed. Sliding doors may be hung from the marginal members 7 by means of runners, and interior partitions provided to subdivide the interior. The units may be joined together in various ways to form buildings of larger roof spans, e.g. as shown in Fig. 6, the indentations round the circumference of the integrated roof span being filled with triangular units 8. The outer edge of the roof span may support a series of sliding doors each composed of elements 24-29, Fig. 15, mounted on tracks on the roof so that they can be shifted from the closed position to the open position shown in Fig. 16. A door may be built up from frame members similar to the purlins 12 to which triangular elements 9 are secured. Two of the triangular areas are closed by insets 30, Figs. 17, 18, of glass or plastic which are secured to a metal frame 31a by means of rabetted clamping members 31 and screws 32.
Patent GB-414797-A (GB)
Title: Improvements in wire tying machines
IPC: B65B13/28
Filed: 1933-02-25
Abstract: 414,797. Bale - wiring machines. SIDDALL, R., Sterne Mills, Sowerby Bridge, Yorkshire, and HAYES, G., Haysleigh, King Lane, Alwoodley, Leeds. Feb. 25, 1933, No. 6818. [Class 45.] In a bale &c. wiring-machine straining is effected by winding the wire on a notched disc h<3> rotated, by the rotation of a crank-shaft A in the direction shown in Fig. 1, through a ratchet boss g' slidably keyed to the shaft and engaging ratchet teeth h<1> on a worm h which drives the notched disc. Another ratchet boss g having oppositely directed teeth is also slidably keyed to the shaft A and engages ratchet teeth e<1> on a pinion e which, when the crank shaft A is rotated in the opposite direction drives a gear wheel d, Fig. 6, meshing with the slotted twister pinion b and carrying a cam k<3> acting on one arm k<2> of a cutter lever k pivoted at k<1> between the twister pinion and the straining drum. Movement of the gear wheel d during the tensioning operation is prevented by the engagement of a spring-pressed plunger u in a recess v in the gear wheel and the ratchet bosses are normally pressed into engagement with the ratchet teeth e<1>, h<1> by a spring g<2>, Fig. 1. Clamping means for the free end of the wire and means for retaining the wires within the slot of the twister pinion comprise cam-actuated arms i<2>, j<2>, Fig. 3, respectively, the arm j<2> being notched at j<4> as shown. The cams i, j are actuated by a lever il and are arranged so that both arms may be depressed or both raised or so that the arm i<2> may be raised and the arm j<2> depressed. For limiting the number of twists put on the wires, the gear wheel d is provided with a drum p, Fig. 4, having a shouldered notch p<1> therein and a pawl r is mounted on the driving pinion shaft f so as to have a limited movement thereon under the control of a spring. Normally the pawl rests on the cylindrical surface of the drum, but after one revolution thereof it drops into the recess and stops further movement. On the slight reverse movement of the gear wheel due to the recoil of the severed wire, the pawl rises under the influence of its spring and a spring- pressed portion t pivoted thereon snaps over the shoulder and rests on the cylindrical surface of the drum to prevent the pawl from falling until the gear wheel has been rotated again. Specification 213,787, [Class 45], is referred to.
Patent GB-142793-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04M3/40
Filed: 1920-02-27
Abstract: 142,793. Automatic Telephone Manufacturing Co., (Assignees of Homrighous, J. H.). May 2, 1919, [Convention date]. Automatic exchange systems; repeating and amplifying systems.-A two-way amplifier G, associated with a relay impulse repeating set F in the outgoing end of an inter-exehange trunk 90, 91, is rendered operative when the called subscriber answers. When the repeater F is seized over the trunk 53, 55, relays 59, 60 are energized and the outgoing trunk 90, 91 is bridged by a circuit 64, 87, 68 (upper winding), 84, 82, 81 (right-hand winding), 79. The two windings of relay 68 oppose one another at this stage, so that the relay does not respond. Interruptions in the circuit 53, 55 are repeated in the trunk 90, 91 at the contact 79, relay 67 being energized, as long as impulses are passing, to give a non-resistive bridge circuit 90, 64, 89, 79, 91. When the connexion is completed and the called subscriber answers, the current in the trunk 90, 91 is reversed in known manner and the relay 68 responds, cutting out the condensers 92, 93 (which are only provided for transmitting the customary ringing tell-tale tone), connecting the trunk 90, 91 to one side of the amplifier G, and energizing relay 66, which reverses the connexions of the line relay 59, cuts the whole of the inductance 81 into the bridge circuit across the trunk 90, 91, and connects the other side of the amplifier G to the trunk 53, 55. The amplifier G is shown as of the magneto.microphone type. Each magnet, such as 101, has a relay 104 in parallel with it, which, when the magnet 101 is active, vibrates its armature to energize a relay 105, which shortcircuits the other magnet 102. The lower winding of relay 105 is permanently energized but is not sufficient to actuate the relay. Specification 1419/10 is referred to.
Patent GB-354683-A (GB)
Title: Truck for supporting the tail of aeroplanes during their displacements on land
IPC: B64F1/22
Filed: 1931-02-26
Abstract: 354,683. Hand-trucks. VENEZIAN, C. COHEN-, 40, Via Piffetti, Turin, Italy. Feb. 26, 1931, No. 6058. Convention date, Feb. 26, 1930. [Class 108 (i).] To facilitate manoeuvring an aeroplane the fusilage of which is supported on a four-wheel truck, the tail skid is supported on a two-wheeled truck 4 constructed so that the supporting member is free to move transversely to the line of direction of the aeroplane. As shown, the skid-container or member 12 is mounted on a rod 11 so as to be free to move transversely of the truck, springs 13 being provided to urge the container 12 to its central position. A slot 14 is provided in the axle 6 and a socket member 7 is provided for a steering handle 8, 9.
Patent GB-192944-A (GB)
Title: Improvements in separating oxygen from atmospheric air
IPC: C01B13/02
Filed: 1922-03-01
Abstract: 192,944. Woodall, Duckham, & Jones (1920), Ltd., and Morgan, J. S. March 1, 1922. Oxygen is separated from air by absorption in a solution or suspension of haemoglobin which is prevented from putrefaction by being maintained at about O‹ C. or at a temperature just lower than that at which the haemoglobin coagulates, in presence or absence of a protective colloid. According to an example haemoglobin is circulated counter-current wise to air in an absorption tower maintained at about O‹C. and then passed through a vessel where it is subjected to reduced pressure. Another example carries out the absorption at 1.5 atmospheres and 57‹ C. To avoid frothing while the oxygen is being withdrawn, the solution may be forced into the low pressure vessel in the form of a fine spray. The Provisional Specification refers to the prevention of putrefaction by addition of a germicide, such as hypochlorite, formaldehyde or a mercuric salt.
Patent GB-410933-A (GB)
Title: Improvements in bread boards
IPC: A47J47/00
Filed: 1933-02-28
Abstract: 410,933. Bread boards. BRAMHALL, G. F., and BRAMHALL, A. L., (trading as BRAMHALL & CO.), 70, Mary Street, and HAYNES, H., 10, Perrigree Road, both in Sheffield. Feb. 28, 1933, No. 6104. [Class 28 (ii).] A bread board a is saw-cut along one edge and the outside of the cut is closed by a filling piece c, to form a slot for the accommodation of the knife f. The filling c may be glued or pegged to the board, or plastic wood may be used. The board is cut away to receive the knife handle, and the end of the slot remote from the knife handle may be closed by a filling piece.
Patent GB-762988-A (GB)
Title: Improvements in electric circuit breakers of the air- or gas-blast type
Inventor: ROXBURGH ALBERT
IPC: H01H33/867
Filed: 1954-03-02
Abstract: 762,988. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 25, 1955 [March 2, 1954], No. 6119/54. Class 38(5) In an air or gas-blast circuit interrupter, a resistor 28 is connected in parallel with the contacts 11, 14, by means of electrodes 31, 32 arranged in a closed pressure-retaining chamber 34 and which provide a gap in series with the resistor, which gap will break down when contacts 11, 14 are opened, and means are provided for the application of air or gas pressure to the gap to quench the spark thus formed and terminate the flow of current through the resistor. The interrupter is operated by opening control valve 37 to apply pressure from pipe 40 to the contact chamber 1, urging contact 11 away from contact 14. Air flows through contact 11 and ports 11a into casing 6. The pressure moves piston 23 downwardly against spring 24, opening ports 22 to the atmosphere. The flow of air extinguishes the arc drawn between the contacts and withdraws air through pipe 35 from chamber 34, facilitating the breakdown of the gap between the electrodes 31, 32. On further movement of contact 11, piston 13 exposes port 27 so that pressure is applied to the underside of piston 23, causing it to rise and close ports 22. The pressure in the casing 6 then builds up to that in chamber 1, and is finally applied through pipe 35 to chamber 34 to interrupt the spark therein. The contacts 11, 14 are closed by closing valve 37 and opening exhaust valve 37a. The interrupter may include a series isolator (Fig. 2, not shown), the opening of which may cause the opening of valve 37a and thus the closing of contacts 11, 14. Two contact units may be mounted back-to-back to extend in opposite directions from assembly 2, each unit having a resistor and series gap in parallel with its contacts (Fig. 3, not shown).