baber/WOPTO huggingface dataset:
Patent GB-1494231-A (GB)
Title: Apparatus for manufacturing plaster sheets
IPC: B28B5/04
Filed: 1975-03-25
Abstract: 1494231 Continuous casting of fibre-reinforced plaster ACI TECHNICAL CENTRE PTY Ltd 25 March 1975 [26 March 1974] 12463/75 Heading B5A [Also in Division B1] A plaster slurry is cast in a procession of moulds, and fibres deposited on the cast slurry and forced into its surface. The moulds are open ended and interconnected end-to-end by flexible strips so that a continuous sheet of plaster is cast and finally cut into lengths. As described, a plurality of moulds 27 having flat floors and side walls, are formed into a procession by bridging rubber strips, and are moved over a support frame 21. Plaster and water are continuously cast from a mixer 29 (see Divisions B1-B2) into the moving moulds on top of a decorative facing sheet. Sisal or fibreglass fibres (as randomly oriented chopped lengths, rovings, continuous meandering strands, or a random mat) are applied by a dispenser 44, and then forced to the bottom of the plaster layer by a pair of fluted rollers 56. A further layer of fibres is applied by a dispenser 44a, and forced into the plaster upper surface by a pair of open mesh rollers 56a. Any plaster on the mould side walls is wiped back into the mould by driven, toothed rubber discs (62, Fig. 11, not reproduced) and the upper plaster surface is levelled by an endless plastics-coated rubber sheet (64, Fig. 10, not reproduced). The plaster is cut to length over the bridging rubber strips, the moulds slightly separated, and lowered on to a return track. Adjacent the mixer 29, the mould walls are hinged down, the cut sheets removed to a drier by an air blast and vacuum cups, and the moulds raised again to the level of frame 21. The fibre dispensers 44, 44a and pairs of rollers 56, 56a are duplicated so that one of each pair can be raised by cylinders 46, 46a and run away on horizontal tracks for repair or filling. Each fibre dispenser includes several distributing heads (53, Fig. 6, not reproduced) that reciprocate over the moulds to drop the fibres into a turbulent air stream that ensures random orientation.
Patent GB-268167-A (GB)
Title: Improvements in wear compensating bolts
IPC: F16C9/06
Filed: 1926-05-17
Abstract: 268,167. Monckmeier, G. C. May 17, 1926. Locking nuts. - In a device for tightening a nut on a bolt to compensate for wear of the parts secured, a flat spring washer is provided for allowing temporary expansion of the parts. The split bush 6 of a connecting-rod bearing is held by bolts 1 having threads of comparatively long pitch. The nut is advanced onto the spring washer 24 by a , coiled spring 25 secured at one end to the flange 20 of the nut and held to the required tension by a washer 22 engaging a squared portion of the bolt and by a pin 23. The washer 22 may be held against rotation by castellations engaging the pin 23. The spring washer is seated in a recess 26 of the nut to prevent it from yielding to its full extent.
Patent GB-825304-A (GB)
Title: Method and device for the manufacture of tubes consisting of layers of strips of flexible material
IPC: B27D1/08
Filed: 1957-04-17
Abstract: 825,304. Making tubes. ABERG, M. B. April 17, 1957 [April 19, 1956], No. 12589/57. Class 99(2). In making a tube by applying layers of strips 7, 8 of material, e.g. wood veneer, and an intermediate bonding agent to a mandrel 1, the layers are introduced into the clearance between the mandrel and a surrounding sleeve 4 the inner diameter of which corresponds substantially to the outer diameter of the finished tube. The sleeve is provided with a screwthread and the mandrel has longitudinal grooves 3 and either of these elements is rotated to move the layers of strips under pressure along the mandrel by engagement of the screw-threads with the material of the tube ; alternatively, the mandrel is formed with a screw-thread and the sleeve has longitudinal grooves. As shown, the strips are wound helically on to a fixed mandrel, and the sleeve 4 is formed with a gear 5 in mesh with a gear 6 driven by a motor. The bonding agent is applied to the strips before winding of the latter, or consists of an intermediate foil, a heating element being provided within the mandrel or sleeve ; parts of the sleeve or mandrel may be cooled to dissipate heat produced due to friction as the tube passes through the sleeve. The threads formed on the finished tube are removed by grinding. The strips may be applied longitudinally of the mandrel, or longitudinally extending strips and helically wound strips may be applied alternatingly to the mandrel.
Patent GB-137997-A (GB)
Title: Improved means for governing diesel engines and the like
IPC: F02M59/34
Filed: 1919-05-20
Abstract: 137,997. Jorgensen, O. Z. May 20, 1919. Regulating.-In a multicylinder engine of the Diesel type, in which there is a fuel pump for each cylinder, and in which one or more of the pumps can be rendered temporarily inoperative, the pumps are rendered inoperative by means actuated by current produced by a dynamo driven by the engine. In one form, a solenoid 15 in series with the dynamo moves a pawl 12 to open the suction valve 9 of the pump.
Patent GB-101424-A (GB)
Title: Abrading Belt.
Inventor: FREEMAN LOUIS GUSTAV
IPC: F16G1/04
Filed: 1916-09-08
Abstract: 101,424. Freeman, L. G. Sept. 8, 1915, [Convention date]. Tools. - Buffing or abrading belts, such as are used, for example, for operating on the heel breasts of boots and shoes, are reinforced at their edges, and also on a portion of the reverse side of the backing, by a coating of glue or the like. The strip forming the belt is preferably cut on the bias, and it is provided with a layer 3 of glue and with abrasive 4 of sand-paper, corundrum, &c. Each exposed edge and a portion or the whole of the backing are given an additional coating of glue. In forming the belt, the ends of the strip are overlapped or connected by a jointing-piece.
Patent GB-1001607-A (GB)
Title: Furnace or retort for chemical purposes
Inventor: GORDON JAMES EDWARD
IPC: B01J6/00
Filed: 1962-04-03
Abstract: (A) silicon nitride whiskers and (B) silicon carbide whiskers are prepared by electrically heating a hollow tube containing (a) silicon nitride or (b) silicon to (a) 1580 DEG  to 1600 DEG  C. or (b) up to 2000 DEG  C., and pumping (a) nitrogen or (b) argon into the tube to carry silicon through apertures in the tube into an annular reaction zone formed between the tube and a thermally insulated casing at a temperature about 200 DEG  C. lower than that of the tube, whereupon (a) silicon and nitrogen react to form whiskers on a substrate, or (b) silicon reacts with a carbon substrate.  The carrier gas may be preheated and/or recycled.  Specifications 998,089 and 1,001,606 are referred to.
Patent GB-494498-A (GB)
Title: Telegraph exchange system
IPC: H04L12/00
Filed: 1938-04-29
Abstract: 494,498. Telegraph exchange systems. LORENZ AKT.-GES., C. April 29, 1938, No. 12882. Convention date, May 7, 1937. [Class 40 (iii)] A long telegraph signal clears the connection by means of two successive slowly retracting relays, the first of which R is influenced by the telegraph signals of both directions of traftic, while the second L is governed by a contact r2 of the first and effects the release by its contacts l5, l7. The first relay has two windings RI, RII, which are affected by the signals. The winding RI carries current if no signalling is taking place in the outward direction, but is short-circuited on each reversal of a contact e by the signals. The winding RII receives current when the relay S is energized by received signals, but is short-circuited in the pauses. The effect of the windings RI, RII cancel each other. Thus the relay retracts if a long clearing signal is sent in either or both directions. To reduce the number of relays, the second relay L is also used to reverse, by its contacts l1, l2, the direction of the current in a system in which the connected printer motors Mo are started by a reversal of the direction of the current on the engagement of a selector. If, during dialling, the subscriber presses his clearing key, the calling key AT is automatically restored, the relay R falls back, and, by its contact r3 causes the relay T to fall back and release the preselectors and final selectors. That is, during this period the release is dependent entirely on the first relay R, and only after the response of the second relay L, through the closing of the contact s by the relay S, is the release of the second relay made dependent, by contact r2, l3, on the first relay, and the line release made dependent on the second relay. When the connection is released by one subscriber, an auxiliary relay U, which is in the circuit of a contact of the relay E in the other subscriber's line a1, b1, prevents re-engagement of the latter's preselector by the continued energization of his relay E until a contact m2 is opened.
Patent GB-452458-A (GB)
Title: Process of and apparatus for finishing materials, more particularly loosely woven or knitted planiform textile fabrics, in web-form
IPC: D06C7/02
Filed: 1935-04-30
Abstract: 452,458. Automatic control systems. KRANTZ, H., and KRANTZ, W., (trading as KRANTZ SOHNE, H., [Firm of]), Industriestrasse, Aachen, Germany. April 30, 1935, No. 12892. Convention date, March 6. [Class 38 (iv)) [See also Group VIII] To ensure predetermined final linear dimensions in a fabric web a supply device delivers to the finishing machine a predetermined uniform fraction of the total quantity of the web per unit length of the conveyer portion of the finishing machine so that the total quantity of web is uniformly divided over the final predetermined length of web. As shown, fabric 1 is fed by rollers 17, 18 to a tentering chain at a speed shown by the motion of a pointer 4 which really shows the weight of fabric remaining on the scale pan 2. A second pointer 7 coaxial with the pointer 4 is driven by variable speed gearing 12 from the tenter chains 14, the gearing 12 being so arranged that with the proper speed of the chains 14 the pointers 4 and 7 keep together. Should one gain or lose on the other the speed of the feed rollers 17, 18 is adjusted. In one means for effecting this adjustment the pointers 4, 7 are replaced by a disc 23, Fig. 3, provided with sector electric contacts and a bar 27 carrying contact rollers 28, 29. Instead of utilizing the weight of the fabric, the fabric may be marked at regular intervals, and these marked points are attached to the starter chain at regular predetermined intervals. These markings may be designed as contacts or to work in conjunction with photosensitive cells.
Patent GB-950330-A (GB)
Title: Moulded cushion or pad
Inventor: PINCHIN JOHN RICHARD
IPC: A47C27/15
Filed: 1961-04-11
Abstract: 950,330. Plastic cushion pads. SLUMBERLAND GROUP Ltd. April 5, 1962 [April 11, 1961], No. 12951/61. Heading A4M. A cushion pad of synthetic plastic material has a relatively dense outer shell or skin 10 formed of finely divided expanded polyether or polyester crumb bonded together and compressed in a mould to the required density, and a filling 11 of larger particles of the same material more lightly compressed and bonded to the skin. Two similar pads may be adhesively secured to form a complete cushion. Specification 844,703 is referred to.
Patent GB-631894-A (GB)
Title: Improvements in or relating to protection apparatus for controlling the supply of fuel to furnaces fired by means of liquid or gaseous fuels
IPC: F23N5/12
Filed: 1947-05-15
Abstract: 631,894. Supplying fuel to liquid and gaseous fuel burners. CRAWFORD, A. E., and JOYNER, H. D. May 15, 1947, No. 13117. [Class 75(i)] Protection apparatus for controlling the supply of liquid or gaseous fuels to a furnace in the event of the flame being extinguished comprises a circuit containing two triodes, the grid of the first being connected to a point at earth potential by way of a gap lying in the path of the flame of a furnace, a relay device controlling the fuel valve being connected in the anode circuit of the second triode, the anode current of which is dependant on the gridcathode potential of the first triode, the said potential depending on the value of the current flowing across the gap. With the mains 15 switched on and the burner 12 not ignited, the path between the electrode 10 and the burner 12 is non-conducting. The grid and cathode of V1 being connected by the resistor R1 are at the same potential and permit anode current to flow during the positive half cycle of the anode voltage of V1. This current passes through resistor R3 and charges condenser C2 to hold the grid of V2 at a potential sufficiently negative to restrict the anode current of V2 and prevent the operation of relay K. The anode current of V2 flows via the bye-pass condenser C3 and the resistor R2 creating a potential across R2 and hence between the electrode 10 and burner 12 by way of R1. With relay K de-energized its contacts 19 and 20 connect a warning horn 21 across the mains 15 and disconnect an indicator lamp 22. When the fuel valve 13 is opened manually and the flame ignited, ionisation takes place to form a conductor path in parallel with R1 and R2 causing a current to flow through R1 and charge condenser C1 to apply a negative bias to V1 and reduce its anode current; this reduces the negative bias applied to V2 and increases its anode current thus increasing the potential difference across the burner electrodes and further increasing the negative bias on V1. This process continues until sufficient current is flowing in the anode of V2 to operate relay K to change over contacts 19 and 20 so disconnecting the warning horn 21, connecting indicator lamp 22, and the solenoid 14 to maintain fuel valve 13 open. Should the flame be extinguished the circuit reverts to the first described condition and the fuel valve 13 is closed. If a short or low resistance circuit develops between the burner 12 and electrode 10 the negative bias en V1 is reduced and so closes fuel valve 13. A spring loaded push button switch may be provided to supply current to the solenoid 14 for initial starting.
Patent GB-922864-A (GB)
Title: Improvements in assembly of rockets and like devices
Inventor: PALLOTTA MASSIMO
IPC: C08F283/00
Filed: 1961-04-12
Abstract: 922,864. Inhibition of propellent grains. BOMBRINI PARODI-DELFINO S.p.A. April 12, 1961 [April 15, 1960], No. 13121/61. Class 9 (1). A process for inhibiting propellent grains and/ or attaching the grain to the propellent container comprises introducing between the grain and container a product of reaction between one or more organic polysulphides having two or more reactive HS-groups and one or more unsaturated monomers with additionally one or more substances to promote copolymerization such as peroxides and also an inorganic pigment as filler such as titanium dioxide or zinc sulphide. The inhibitor may also contain woven or unwoven natural or synthetic fibres to modify its elasticity and those areas of the grain which are to remain uninhibited may be temporarily covered by suitably shaped plugs of the inhibitor coated with a viscous silicone grease.
Patent GB-220090-A (GB)
Title: Improvements in electric ovens
IPC: H05B3/66
Filed: 1923-05-16
Abstract: 220,090. Belling, C. R. May 16, 1923. Resistance ovens.-An oven comprises an inner open-fronted removable shell a, an external concentric shell or shells b, e provided with heat insulation, and a resistance wire c supported so as to be floating as nearly as possible in air and arranged between the shells a, b. The shells may be of circular form. The shell a which constitutes the oven proper may be replaced by two rectangular ovens side by side. In Fig. 2 the shell a is provided with insulated strips e' which support the resistance wire, and slots e' or perforations are arranged in the walls of the shell.
Patent GB-132478-A (GB)
IPC: B64C3/18
Abstract: 132,478. Page, F. H. Dec. 4, 1915. Rod couplings.-In forming a V joint between aeroplane struts, a blank, Fig. 3, is bent up into the shape of a triangular box, and provided with circular or stream-line sockets 26, Fig. 1, to receive the struts, and with a fitting 25 to receive a joint pin.
Patent GB-133407-A (GB)
IPC: A43B13/14
Abstract: 133,407. Schmidt, M. C. Sept. 27, 1918. Boots and shoes.-To prevent the arch of a foot from being broken down, to relieve a person whose arch is broken and gradually to re-establish the arch, and to establish an arch in a flat foot, a shoe is constructed so that when the heel rests throughout its extent on a horizontal surface and the shoe is relieved of all weight and strain every point of the sole is disposed above that surface, as shown in Fig. 3. Further, the heel is arranged so that its breast C is brought forward of the line of the strain from the leg, while its rear portion B is undercut so that the tread surface extends only under the bones of the heel. In one example, Fig. 3, AC is one-third of AE, and AB one-quarter of AC. Fig. 5 shows a modified construction in which a low heel is used, and in which the breast is of greater depth than the rear G of the heel. In this case, the lowest point of the sole and the rear of the heel are in a plane substantially parallel to that of the heel seat.
Patent GB-433811-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J61/04
Filed: 1934-05-03
Abstract: 433,811. Discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. May 3, 1934, No. 13410. Convention date, June 24, 1933. Addition to 425,103 and 425,601. [Class 39 (i)] In the discharge tubes described in the parent Specifications, the long narrow passage connecting the screened - off space 3 with the discharge space 1 is formed in an insulating tube of rectangular cross-section firmly surrounding a polewire of circular cross-section. The space 3 contains glass wool impeding thermal radiation from the screen 2, the wool being preferably of lead glass to take up the metal vapour penetrating into the space 3. The pole-wires 7 to the helical cathode 4 and to the two anodes 5 of a lamp filled with neon and sodium all pass through rectangular tubes 8 of magnesium oxide fitting closely together in a rectangular slot in the ferrochromium disc 2, the joints between the disc 2 and the envelope 1 and tubes 8 being sealed with a mixture of talc and water-glass. The lead-glass seal-portion 10 of the envelope is joined through a ring 11 of a glass transmitting ultra-violet rays to the main wall 1 constituted at least on its inner side by boron silicate glass.
Patent GB-408816-A (GB)
Title: Improvements in draught excluding devices for doors and windows
IPC: E06B7/22
Filed: 1933-05-09
Abstract: 408,816. Draught - excluders for doors and windows. BROOKE, A., 37, Ford Street, Coventry. May 9, 1933, No. 13416. [Class 20 (iii).] The attachment flange c of a beaded or tubular draughtexcluding strip a of rubber is made permanently resilient by means of a rubber strip or by a spring wire e enclosed in a zig-zag form between layers of canvas b<1> surrounding the bead and formed with a pile surface.
Patent GB-885286-A (GB)
Title: Improvements in or relating to colour sorting machines
Inventor: FRAENKEL HERBERT
IPC: B07C5/342
Filed: 1958-10-20
Abstract: 885,286. Photo-electric sorting apparatus. GUNSON (SEEDS) Ltd., R. W. Dec. 11, 1958 [Oct. 20, 1958], No. 13417/61. Divided out of 885,283. Class 40(3). The description is substantially similar to that of Specification 885,283. The claims are directed to a sorting machine wherein the objects to be sorted are irradiated with polarized light. Such a machine is used where the objects show a high degree of specular reflection. The light from lamps 20 ' passes 'through polarizing filters 39 and illuminates the object 2 falling through the inspection zone. A further polarizing filter 40 is crossed with respect to filters 39 so that only diffused light from the objects can pass to a lens tube 8 and from thence to photo-electric means which control the sorting. Specifications 885,285 and 885,287 also are referred to.
Patent GB-220393-A (GB)
Title: Improvements in and relating to bituminous compositions
IPC: C08L95/00
Filed: 1923-05-22
Abstract: 220,393. Atherton, F. E. May 22, 1923. Emulsions, making.-Emulsions of bitumen or of pitch of low melting point are stabilized by means of silicic acid with or without a salt, such as sodium chloride. In an example, a mixture of caustic soda or potash or ammonia and a fatty acid such as oleic acid is run into melted pitch or bitumen and hot water added. Less than one per cent each of sodium chloride and silicic acid are then dissolved in the emulsion. The emulsions are suitable for the treatment of roads &c.
Patent GB-514826-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B61H9/00
Filed: 1938-05-05
Abstract: 514,826. Fluid-pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., KERSHAW, A. G., and SIMMONS, A. W. May 5, 1938, No. 13456. [Class 103 (i)] In a fluid-pressure brake system particularly for electric locomotives, comprising in addition to a straight-air or automatic braking equipment an emergency equipment comprising a brake-pipe, reduction of pressure in which operates an emergency application valve to connect an emergency reservoir to a brake cylinder, means are provided for restricting the supply to the brake cylinder in emergency applications after the initial supply. In the emergency valve shown in Fig. 2, the emergency pipe connected at 6 supplies the emergency reservoir connected at 10 through passage 9. In normal applications, the brake cylinder is supplied from a straight-air pipe through passage 35, valve cavity 30 and passage 29 connected at 23 to the cylinder. Reduction of pressure in the emergency pipe causes the slide-valve 4 to move over so that the cylinder is supplied from. the emergency reservoir through passage 31 and at first past the valve 15 and through a restricted passage 24. When the cylinder pressure acting on the piston 17 reaches a value sufficient to overcome the spring 18, movement of the piston permits closing of the valve 15 and further supply to the cylinder is through passage 24 only. In a modification, the brake cylinder is selectively connected to the straight-air pipe and to the connection from the emergency valve through the restricting device by a double-check valve. In Fig. 3, the straight-air pipe 28 is normally connected to the cylinder pipe 23 by the valve 4. The reservoir is in two parts 32, 33 connected by a restricted passage 34 so that when the valve moves over there is first an unrestricted supply to the cylinder from the reservoir 32 and then a restricted supply through the passage 34. In a modification, the two reservoirs have separate connections with the valve chamber and the supply from 'one reservoir is through a restricted passage in the valve or the valve seat.