baber/WOPTO huggingface dataset:
Patent GB-106331-A (GB)
Title: Improvements in Embroidery and Embroidering.
Inventor: LOEB RUDOLF
IPC: D05C17/00
Filed: 1916-05-19
Abstract: 106,331. Loeb, R. May 19, 1916. Embroidery. - A process of embroidering consists in applying stitches by means of a sewing-machine having one or more needles vibrating in fixed planes, as described in Specification 106,452, to a fabric which is fed by hand in any direction and at any rate to give the desired design. Fig. 1 illustrates a design formed on a machine with two needles having a fixed field of vibration, the varying character of the stitching being obtained by moving the work more or less parallel to the plane of needle vibration and fast or slow as required.
Patent GB-643807-A (GB)
Title: Improvements in or relating to cutting and forming machines
IPC: B21D31/04
Filed: 1948-03-09
Abstract: 643,807. Making screens. STEVENS, A. H. (Flex-o-Glass, Inc.). March 9, 1948, No. 7227. [Classes 83 (ii) and 83 (iv)] Shearing; angular bending ; flanging dies.- A machine for making insect-screen mesh comprises two sets of rollers, the first set of which slits a sheet and partially bends the slit portions and the second completes the bending of the slit strips. The rollers are formed of saw-like discs strong with spacers on shafts 79, 82, 103, 104, mounted in side frames one of which is removable for changing the rollers by screw means, and rotated from a power shaft through gearing adjustable by eccentric means to take up back lash. The upper roll shafts 82, 103 are adjustable by screws 65. The sheet is fed into the machine over a table 159, is slit and bent by the rollers and is fed from the machine by rollers 164, 165 which may maintain the sheet under tension. The 'discs forming the rollers on shafts 79, 82 are serrated, Fig. 13, with surfaces 85 which cooperate to slit the sheet and surfaces 87 which bend the slit portion out of the plane of the sheet. The edge part of the disc carries a surface 89 which curls or flanges slightly the edge of the slit portion. The discs on shafts 103, 104 complete the bend as shown in Fig. 14. In order to facilitate the bending the shaft 103 is rotated at a speed slightly greater than that of the sheet and the roller 164 is rotated at a speed slightly less. The angular position of the teeth is varied by eccentric adjustment of the rollers and the period of engagement of the teeth with the slits is varied by adjustment of the screws 65. Stripper bars 182 are positioned between the bending discs.
Patent GB-1009461-A (GB)
Title: Improved sealing means for gate valves
Inventor: TRAUT BERNARD EDWARD
IPC: F16K3/18
Filed: 1963-02-22
Abstract: 1,009,461. Valves. DE ZURIK CORPORATION. Feb. 22, 1963, No. 7332/63. Heading F2V. In a gate valve for a circular passage between pipes 14 and 15 the gate 19 is raised and lowered by a hand wheel rotated screw and leakage through the channel 21 is prevented by a packing 30 which is compressed by tightening packing box 22 towards the valve body 10. The gate 19 is guided between a plurality of circumferentially spaced lugs 36, the lowermost pair of which are located in a rib 38 extending over an arc less than 180‹ C., and the surface 35 of an annular valve seat 34 containing a circumferentially extending rubber ring 41 held within a groove 40 by adhesive and defining therein a closed space 44 containing an incompressible fluid. Skirt 45 of rubber ring 41 extending over the arc of the rib 38 is deformed by the lower edge of the descending gate 19 and the compression is transmitted by the fluid within space 44 to sealingly engage the face 42 around the circumference of the ring 41 with the face 19a of the gate 19. In a further embodiment pressure transmitting fluid is contained within the sealing ring.
Patent GB-806341-A (GB)
Title: Improvements in or relating to dust-laden air extraction systems
IPC: B24B55/06
Filed: 1954-03-13
Abstract: 806,341. Removal of dust generated during industrial processes. CALDERBANK, A. June 10, 1955 [March 31, 1954], No. 7371/54. Class 8(2). The suction duet 13, Fig. 1, of a grinding wheel hood 12 exhausted by a fan 16 has a normally closed valve 24 which is opened by a solenoid 22 energized when a switch 21, Fig. 2, is closed by depression of a spring-biased work rest 18 on application of the work piece thereto or alternatively the valve-actuating solenoid is energised by a switch 31 located below an upwardly biased operator platform 28. In a modification a valve 35, Fig. 5, in the suction duct of a sand blasting chamber 33, is opened by a mechanical linkage 37 on opening the chamber door 34 to admit the workpiece. In a further modification the rotary cutter of a brick cutting machine is carried by a swinging arm whose movement to the operative position effects opening of a valve in a duct connecting the hood of the machine to a duct separating unit.
Patent GB-429533-A (GB)
Title: Improvements in bed settees
IPC: A47C17/22
Filed: 1934-03-08
Abstract: 429,533. Bed - settees. NEWTH, A. L. W., 7, Westbury Road, Westbury-on- Trym, and DOWDLE, R. W., 10, Axbridge Road, Knowle, both in Bristol. March 8, 1934, No. 7420. [Class 52 (ii)] In a bed-settee of the kind having a folding bed frame made in four sections, and in which the foot and intermediate sections are supported by struts e, k, f pivoted to the respective sections d, c, band to the seat frame i or to the chair frame, the struts k, f supporting the two intermediate sections c, b are interconnected by a slotted link n, the slot in which slides over the pivot pin connecting the front intermediate section c to the strut k. Projection of the strut k above the frame is thus avoided.
Patent GB-398479-A (GB)
Title: Improvements in and relating to rollers for drawing flat sheet glass
IPC: C03B15/18
Filed: 1932-03-12
Abstract: 398,479. Glass manufacture. GASKELL, J., Stookswell, Hard Lane, St. Helens, Lancashire. March 12, 1932, No. 7424. [Class 56.] Relates to a roller for use in a flat sheet drawing-apparatus, particularly for drawing the sheet through the leer or tower, and of the kind in which discs of asbestos are threaded on a square or hexagonal shaft and are compressed between a fixed and a loose collar. According to the invention, the loose collar is operable by means situated at the extreme end of the roller shaft in order that the asbestos covering can be tightened while the apparatus is in use. The roller comprises a tubular shaft 1 secured to trunnions 2, 3, the trunnion 2 being formed with a flange 4 against which the asbestos rings 5 are compressed. A movable collar or abutment 8 slides on the shaft 1 and its outer end is engaged by a cotter 7 which passes through a slot 6 in the trunnion 3. A bolt 9 screws into an axial passage through the trunnion and transmits a thrust to the cotter 7 by means of a rod 10. Thus the asbestos rings 5 can be tightened by turning the bolt 9 during the operation of the machine, and the use of a square or hexagonal shaft 1 is unnecessary since the asbestos rings can be maintained under high pressure. In a modification, the cotter 7 is formed in the end of a rod which passes through the shaft 1 and through a hollow trunnion, and terminates in' a screwed portion provided with a nut which abuts against the outer end of the trunnion.
Patent GB-851416-A (GB)
Title: Improvements in or relating to processes for removing water from raw or activated sludge
IPC: C02F11/13
Filed: 1957-03-06
Abstract: In a process for removing water from sludge, the sludge is heated for at least two hours at a temperature above 175 DEG C., at the end of which treatment the sludge still contains water, which is subsequently extracted, at least in part by a centrifuge or by filtering.  Mean temperature and time values are given as 200 DEG C.-230 DEG C. and 2 to 2 1/2 hours.
Patent GB-871610-A (GB)
Title: New or improved apparatus for producing a gyroscopic effect
IPC: G01C19/58
Filed: 1959-03-04
Abstract: 871,610. Electric measuring systems. SVENSKA AKTIEBOLAGET GASACCUMULATOR. March 4, 1959 [March 10, 1958], No. 7520/59. Class 40 (1). [Also in Group XL (c)] Apparatus for indicating change in attitude comprises an elongated enclosure containing a fluid, a source sustaining longitudinal oscillations of the fluid and means detecting changes in pressure of the fluid consequent on a change in attitude of the enclosure. The invention is based on the Coriolis effect whereby a molecule oscillating longitudinally at a velocity u = u 1  sin W 1 t and simultaneously rotated about an external axis at an angular rate w experiences a force tangential to the rotation arc and proportional to wu 1  sin w 1 t. In the embodiments described the oscillating pressure produced in a gas under pressure is measured by a microphone to indicate w and fwdt. A standing wave is sustained in the gas in tube 12, Fig. 2, by diaphragm 14 on moving coil 15 energized by generator 18 and in the field of magnet 13; the generator frequency is sonic or supersonic. Pipes 20, 21 in nodal plane 17 are connected to ribbon differential microphone 22 whose A.C. output, proportional to w sin w 1 t is measured (i), after rectification, by meter 25 to indicate angular velocity about an axis perpendicular to the plane of the figure and passing through point 19 (ii) by integrating meter 26 to indicate rotation angle. Three such apparatuses may be installed in an aircraft for indicating yaw, roll and pitch. In another embodiment, Fig. 3, the standing waves are generated by crystal microphone 30 and are sustained by feedback via pipes 31, 32, differential microphone 33 and amplifier 35 tuned to the operating frequency determined by symmetrical disposition of the pipes about the nodal plane of the standing waves in the enclosure; it is stated that harmonics are thus avoided. To enhance the pressure between pipes 20, 21 section 28 is of smaller cross-sectional area than ends 27, 29. The enclosure is mounted on a base for rotation about an axis perpendicular to the plane of the Figure by the two-phase motor of integrating instrument 26 to maintain zero output from microphone 22. In a further embodiment two enclosures are combined to give two systems whose microphone outputs are connected in push-pull, Fig. 4 (not shown); it is stated that this embodiment is immune from errors arising from spurious forces. The gas may be hydrogen bromide or a hydrocarbon at e.g. 10 atmospheres pressure. In further embodiments the rotation about all cartesian axes is measured by a single apparatus, Figs. 5 and 6 (neither shown).
Patent GB-851264-A (GB)
Title: Process and apparatus for producing flat glass
Inventor: LONG BERNARD
IPC: C03B18/16
Filed: 1959-03-04
Abstract: 851,264. Drawing glass sheets. GLACES DE BOUSSOIS. March 4, 1959 [April 2, 1955], No. 7543/49. Class 56. In the production of flat glass sheet, refined glass from a tank furnace is flowed substantially horizontally to a drawing chamber, the depth of the flow being limited sufficiently to prevent the occurrence of a return flow, and the upper part of the flow is cooled so as to form a first shim of relatively viscous molten glass on the surface of the flow and simultaneously the lower part of the flow is cooled to form a second shim of relatively viscous molten glass at the underside of the flow, the shim containing a mass of relatively fluid, molten material in the central region of the flow, and a sheet of glass is drawn with the first and second shims constituting respectively a proximal and a distal layer of the sheet. The melt 314 from the tank furnace 315, 316 flows through a supply channel to the drawing chamber, the channel being separated by blocks 323, 342 forming a cooling space under the roof 322 and with bottom tiles 319 and 320, the tiles 320 being raised to narrow the channel and having cooling tubes 335. Cooling tubes 336 are also provided in the space under roof 322. The glass flow 318 forms two shims 309, 310 which merge in the drawing chamber to form a sheet 327, conventionally drawn between coolers 324, 325 and over rollers 328, 329, 330. The bottom tiles 319, 320 are preferably formed of electro-fuzed comodum which has a relatively high thermal conductivity while the sides of the channel and the furnace bricks are preferably of alumino silicate. The dimension of the cooling channel are such as to give an average temperature drop of over 100‹C. per metre, the length L of the channel being about 3 metres. The drawing chamber may be curved upwardly, as in Specification 782,149 and the coolers under the roof and in the base of the channel may be dispensed with.
Patent GB-417853-A (GB)
Title: Improvements in or relating to mercury vapour rectifiers
IPC: H01J13/20
Filed: 1933-03-13
Abstract: 417,853. Vapour arc converters. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GALLIZIA, E., c/o General Electric Co., Witton, Birming- ham. March 13, 1933, No. 7567. [Class 39 (i).] A deionizing grid comprises means adapted to divide the arc ink a number of curved or sinuous paths and means such as wires or strips further to divide the said paths. Bent molybdenum strips 4 having an odd or even number of faces are secured at their ends within a sleeve 1, which is mounted through insulators 3 within an anode shield 2. The upper faces of the strips are inclined, preferably, outwardly from the centre of the rectifier. Additional strips 8, which may be inclined to the axis of shield, are provided. The length of the sleeve 1 may be one-third of its diameter or, alternatively, the sleeve may be extended as shown in dotted lines. Some of the faces of the strips 4, e.g. all faces sloping in the same direction and situated on the same level may be perforated or the strips may be formed of expanded metal or wire mesh. In a modification, the strips or wires 8 may be located at the juncture of two sets of V-shaped strips. The grid may be connected to the tank, or may be given a positive potential to facilitate starting and upon back ignition, a relay may be adapted to remove the potential bias. The invention is applicable to converters provided with side arms.
Patent GB-187181-A (GB)
Title: Improvements in paint and other brushes
IPC: A46B3/12
Filed: 1922-03-15
Abstract: 187,181. Hamilton & Co. (London), Ltd., and Monk, F. J. March 15, 1922. Bristles, fixing, and bridles for.-In paint or other brushes the bristle knot a is inserted in a socket or recess in the handle end b<1> which is enclosed in a ferrule d and constricted therewith to grip the knot. The ferrule may be prevented from longitudinal movement by having its lower end turned inwardly, as shown, or, in a modified construction, its upper edge may fit beneath a shc.ulder formed on the upper portion of the end b'. The brush may be provided with a bridle e secured in position by means of wires f gripped between the ferrule d and the end b<1> of the handle. In a modified construction, described with reference to a flat brush, the recess for the bristle knot is formed right across the end of the handle so that the ferrule comes into contact with the bristles at the ends of the recess.
Patent GB-119832-A (GB)
Title: Flexible Conductors.
IPC: H01B7/00
Filed: 1918-05-07
Abstract: 119,832. Western Electric Co., (Western Electric Co.). May 7, 1918. Compound conductors; cores.-Flexible conductors for telephones &c. comprise a number of composite strands twisted into a rope-lay, each strand being formed from a number of conductors wound upon a core of non-conducting material of high flexibility and tensile strength. In the construction shown, each composite strand consists of a core 5 of textile thread upon which are helically wound, in the same direction, layers of metal tape G, 7, 8. To prevent any tendency of the conductor to untwist or kink, the strands are laid up in the opposite direction about a core 4 of textile material.
Patent GB-557112-A (GB)
Title: Improvements connected with electric frequency converters
IPC: H02K47/28
Filed: 1942-06-05
Abstract: 557,112. A.C. commutator machines. SCHWARZ, B. June 5, 1942, No. 7684. [Class 35] [Also in Group XXXVII] A self-driven frequency converter FC adapted for controlling the speed and direction of an induction or synchronous motor M, has a stator S of the induction motor type fed from a single or multiphase supply line, and a rotor winding connected to a commutator C to which adjustable voltage is applied by a variable voltage transformer IR through stationary brushes B. The output of adjustable frequency and voltage is taken from tappings t in the rotor winding, or in another winding on the rotor, and supplied to slip rings SL from which the stator windings SM or the slip rings of the motor are fed. In the example shown, the supply line is three-phase, and the variable-voltage transformer is a doubleinduction regulator the primary of which is fed by the supply line. The commutator voltages are supplied by the secondaries SE, and may be adjusted to drive the converter at synchronous, subsynchronous or hyper-synchronous speeds, whereby the frequency and direction of the output is controlled. An auxiliary winding A may be included in the commutator circuit for compensation or speed regulation, and may form the secondary of any suitable transformer device. In addition to the rotor voltage regulation, the stator voltage may be regulated either independently or simultaneously, so as to provide an output of varying or constant voltage with varying frequency. An arrangement of this kind, in which the supply is single-phase, and the rotor of the converter produces a phase-splitting effect is illustrated in Fig. 2 (not shown). In this arrangement, the voltage of the stator windings is regulated so as to decrease with increasing speed of the rotor. In another arrangement, Fig. 3 (not shown), the stator windings are fed from a voltage regulator such as the single induction regulator described in Specification 549,536. The commutator voltage is the resultant of a constant voltage and a variable voltage, supplied by a variable voltage transformer, the primary of which may be the stator windings and may include a voltage component in quadrature for power factor compensation.
Patent GB-169949-A (GB)
Title: Improvements in ventilating cowls
IPC: F23L17/10
Filed: 1921-03-10
Abstract: 169,949. John Akt.-Ges., J. A. Oct. 8, 1920, [Convention date]. Ventilating-shaft tops.-In a ventilating - cowl for ships &c. of the kind composed of two hood-covered nested jackets 10, 12 having oppositely-directed air intakes, the outer jacket 10 is arranged eccentrically to the inner jacket 12 and to the shaft to form an inwardly-contracting intake, and downwardlyconverging moisture-collecting gutters 22 are provided inside the outer jacket opposite the air-intake and meeting over a drainage aperture 6 in the bottom plate. In the cowl shown, the edges of the inner jacket 12 are inclined and turned back to form channels 23 to collect moisture. The cowl is wind-directed, having two radial vanes 21 arranged at a small angle to one another and extending over the top and side of the cowl. A right-angled stop 24 detachably secured to the shaft and taking over the edge of the bottomplate of the cowl prevents the latter from being lifted off.
Patent GB-1172546-A (GB)
Title: Alarm Wrist-Watch
Inventor: SPADINI PAOLO
IPC: G04C3/00
Filed: 1967-02-17
Abstract: 1,172,546. Alarm watches. P. SPADINI. Feb.17, 1967 [Feb.17, 1966; June 8, 1966; Sept.9, 1966], No.7756/67. Heading G3T. An alarm wrist watch comprises a membrane 17 for generating an audible alarm, a spring blade 18 capable of vibrating at a predetermined natural frequency and positioned to cause the membrane to vibrate, and electrical control means for maintaining the vibration of the spring blade, the electrical control means being actuated by a switch which is operated at a predetermined time by the watch movement. The spring blade 18 is rigidly secured to a post 19 and carries an armature 20 which co-operates with the electrical control means comprising a permanent magnet and coils connected to a conventional battery driven transistorized circuit. An alarm hand is set by rotating a bezel 3 which carries the watch glass 2 and at the pre-set time the alarm sound is transmitted through openings 16 which may be partially or completely closed by a shutter to limit the intensity of the sound. A push button switch is provided in series with the movement actuated switch to enable the alarm to be shut off. The watch case is rectangular but modifications are described for circular watch cases and the alarm sound may be produced by the blade striking a pin attached to the watch glass. In a further modification, the alarm mechanism comprises a timing fork with circular tines, one of which is adapted to strike a bell and a tuning fork with parallel tines may also be used.
Patent GB-313548-A (GB)
Title: Improvements relating to percussive machines
IPC: E21B1/02
Filed: 1928-03-14
Abstract: 313,548. Climax Rock-Drill & Engineering Works, Ltd., and Grace, C. J. March 14, 1928. Borehole apparatus; power hammers.-Percussive apparatus for deep-boring, driving piles, &c., comprises a beam pivoted slidably at one end and carrying at its other end a semi-circular guide member around which passes a rope &c. leading from a drum to a tool or weight, one or more cams acting on the beam between its ends to cause the beam to pivot and thereby lift the tool &c., the beam then being disengaged from the cam &c. so as to allow the tool &c. to fall by gravity. The cams also are slidable, the beam and cams being moved laterally by the rope &c. as it passes to or from the drum so as to place them in a position corresponding to that at which the rope &c. passes on to or leaves the drum. As shown in a deep-boring apparatus, a wheeled frame 1 carries a derrick 3 adapted to be lowered for transport. A beam 19 is slidably pivoted on a shaft 20 and carries at its free end semi-circular members 21 with interposed rollers 22, a rope &c. 5 passing from a drum 12, through a slot in the beam and over the rollers 22 and a pulley 4 on the derrick to the tool. Cams 17 engage rollers 29 on the beam to depress the latter and raise the tool, which then falls by gravity; the cams move laterally with the beam through engagement of one of the cams with the slot in the beam. A guide 30 limits upward movement of the beam. The drive; is effected from an engine 6 through chain gearing 7 and a pinion 9 slidable on a shaft 8 and adapted to be brought into engagement either with a gear 16 on the cam shaft 15 or with a gear 10 on the drum shaft. The drum 12 is also provided with a brake 13 and operating-mechanism 14 therefor. To ary the stroke of the tool, the semi-circular members are adjusted on the beam by rack-and-pinion mechanism 26, 27 operated by a hand wheel &c. 24 provided with locking means 23.