baber/WOPTO huggingface dataset:
Patent GB-1067728-A (GB)
Title: Improvements in or relating to voltage controllers
Inventor: NOYCE SIDNEY JOHN
IPC: G05F3/10
Filed: 1964-08-26
Abstract: 1,067,728. Resistors. BEDCO ELECTRONICS Ltd. Aug. 26, 1965 [Aug. 26, 1964], No. 34990/64. Heading H1S. [Also in Division G3] A regulating device comprises resistance elements 11, 12, at least one of which comprises conductive silicone rubber having a positive temperature resistance coefficient; the surface of one element overlies the surface of the other, but is insulated therefrom so that the elements are in thermal association and, with a suitable choice of resistance values and characteristics, the Specification explains how the device maintains constant the current or voltage applied to a load 30. The element 12 may comprise a rigid or flexible base sheet coated with the conductive silicone rubber; the element 11 may be of similar construction, or may be wire-wound, of graphite, or of material having a negative temperature resistance coefficient. Modifications may include three or more elements (Figs. 5 and 6, not shown), and may control a plurality of loads (Fig. 4, not shown). The device may be in the form of a tube, having conductive coatings on an insulating former, or in the form of resistive discs alternating with insulating discs (Figs. 8 and 9, not shown).
Patent GB-847934-A (GB)
Title: Improvements in gallery-supporting systems for underground working
IPC: E21D15/52
Filed: 1956-11-15
Abstract: 847,934. Mine roof supports. BOCHUMER EISENHUTTE HEINTZMANN & CO., G.m.b.H. Nov. 15, 1956 [Nov. 16, 1955], No. 34991/56. Class 20(2) A mine roof support comprises a sled 2 on which are mounted hydraulic cylinders 3 and pistons 4, on the upper ends of which are detachably mounted pit props 5. A closed channel section roof bar 8 mounted on the props 5 has a longitudinally displaceable bar 9 which is clamped against the roof by wedges 11 sliding in U-shaped stirrups 10. The bar 8 may consist of a number of hinged sections. In operation, a pump 14 conveys pressure fluid from reservoirs 15, 16 (which may be dispensed with if water is used) into the cylinders 3. Inlet valves 13 and 17 and relief valves 19 and 20 are also provided. The sled 2 and attached long wall conveyer 21 may be advanced by windlass or hydraulic jack.
Patent GB-496527-A (GB)
Title: Improvements in or relating to neckties
IPC: A41D25/00
Filed: 1937-12-17
Abstract: 496,527. Necktie manufacture. LEWIS, F. S. Dec. 17, 1937, No. 35009. [Class 141] In a method of manufacturing lined neckties, a layer of lining fabric and a layer of tie material are superimposed one upon the other, and patterns of a plurality of ties are cut therefrom, the two layers being initially secured together in such a maimer that at least parts of the adjacent surfaces of the patterns are free or capable of being freed from each other after the patterns have been cut. In the form shown, two strips B of lining fabric are secured along their edges B to a strip A of tie material by stitching or adhesive, and the wide and narrow ends C, D, of the ties are cut out on the bias, a tie being completed by folding hemming, and securing each wide end at C' to a narrow end at D<1>. If only one end of the tie is to be lined, wide ends only are cut from the composite material or only one lining strip may be provided. In the case where the ties are to be lined throughout their length, a single strip of lining fabric is superimposed on the tie material so as to extend throughout the width thereof. The lining fabric may be secured to the tie material at spaced points, and the adhesive may be such that though it holds the layers together during the manufacture of the tie, it will release its hold under the action of heat.
Patent GB-282789-A (GB)
Title: Process of manufacturing cellulose esters
IPC: C08B3/06
Filed: 1927-12-28
Abstract: 282,789. Ruth-Aldo Co., Inc., (Assignees of Barthelemy, H. L.). Dec. 28, 1926, [Convention date]. Cellulose acetates. - Sulpho-acetates formed during the manufacture of cellulose acetates while using sulphuric acid as the catalyst, are decomposed by carrying out the after-treatment in the following manner :-to the acetylation mixture is added sufficient aqueous formic or acetic acid to decompose the excess of acetic anhydride while at the same time preventing incipient precipitation of the acetate, then, after cooling, adding a further quantity of an aqueous solution of formic or acetic acid containing an amount of hydrochloric acid which is at least chemically equivalent to the amount of sulphuric acid used as catalyst in the acetylation, that is to say, the ratio of the amounts of hydrochloric and sulphuric acid must not be less than 36.5- 49. The relative proportions in the solutions may be so computed that the total quantity of water in the mass is 5 to 10 per cent of the total of the acids present after the last bath has been introduced. The cellulose acetate may, for example, be prepared as described in Specifications 19330/05 and 282,788. In an example, 18 kg. of boiled cotton is acetylated in a bath comprising acetic acid, acetic anhydride, and 0.13 kg. of sulphuric acid (density 1.84). The solution is heated to 42‹ C. and a bath of aqueous acetic acid is then added. The temperature rises by about 12‹ C. and then, after cooling to 41‹ C., an aqueous solution of acetic acid containing 0.739 kg. of dry hydrochloric acid is added and the temperature is maintained constant until a cellulose acetate is obtained having an acetyl value between 38 and 43 per cent and possessing complete solubility in acetone. The product is precipitated by adding water and is afterwards washed in the usual manner. Specification 20977/11 also is referred to.
Patent GB-1081515-A (GB)
Title: An improvement in gas filtering apparatus
Inventor: WELLS ALFRED JOHN
IPC: B01D46/04
Filed: 1965-08-17
Abstract: 1,081,515. Gas filters. DUST CONTROL EQUIPMENT Ltd. July 28, 1966 [Aug. 17, 1965], No. 35109/65. Heading BIT. In a gas filter in which a plurality of flat filter bags 8 are arranged with their outlets 9 sealed round slots in a wall 5 which divides their common housing and in which the bags are cleaned by bursts of high energy gas from jet tubes 12 inducing reverse flow through the bags, jet tubes 12 are arranged for easy removal, once access door 4 is opened, whereby changing of bags 8 is facilitated through door 4. As shown, vertical jet tubes are commoned through solenoid valves 14 to a compressed air manifold 13. In this embodiment jets (12a) on tubes 12 are directed into the outlets 9 of the bags, but they could act on the upstream faces to remove dust and induce a little reverse flow only. The filter is used in a dust extraction or pneumatic conveyor system and has a rotary solids outlet valve 11. Fig. 3, not shown, illustrates how a nylon spigot (19) on the upper closed end of tube 12 carries a spring (22) which urges the tube 12 downwards so that its open lower end is held in a socket (15) through which gas is delivered. The tube 12 is removed by lifting the lower end clear of socket (15) and then lowering so that upper spigot (19) comes out of its hole (20) in support 21. The jet tube carries a pin (12b) which engages in the bag mouth to direct nozzles (12a) towards them. Spring (22) may be located at both ends by various washers and flanges, and the closed end of tube 12 may itself engage in hole (20). Bags 8 are internally supported by open structures. The bag mouths may be engaged by detachable headers as in Specification 1,081,516.
Patent GB-453585-A (GB)
Title: Improvements in and relating to devices for protecting multiple phase alternating current installations against earth faults
IPC: H02H3/16
Filed: 1934-12-07
Abstract: 453,585. Protective cut-out arrangements. SIEMENS - SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Dec. 7, 1934, No. 35221. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 16, 1936]. [Class 38 (v)] An earth-fault current coil 4 is connected to earth 5 and to an artificial neutral 2 formed by equal resistances 3, the ohmic value of each of which is greater than that of the coil 4. An earth on one of the lines 1 produces a resultant potential at 2, whereby a switch 7 opens the circuit 6 of a relay or holding coil, and also operates a visual or acoustic indicator.
Patent GB-618747-A (GB)
Title: Improvements relating to shop counters, show-cases, cabinets and the like
IPC: A47B47/05
Filed: 1946-11-29
Abstract: 618,747. Cabinets ; furniture joints. HARRIS & SHELDON, Ltd., and BEACH, A. H. Nov. 29, 1946, No. 35403. [Classes 52 (i) and 52 (ii)] A knock-down cabinet or the like comprises separate front, back, and end frames detachably connected together by joints formed by opposed channels of dovetail and like section in the vertical adjacent frame members in combination with two vertical locking bars adapted to interlock with the opposed channels by means causing the locking bars to be moved transversely apart and forced into close engagement with the channels to hold the frames firmly together. The cabinet comprises front, end, and back frames 1, 2, 3 respectively together with top and bottom frames 13, 14. The adjacent vertical frame members 11, 12 are provided with opposed channels 29, 28 with mitred contacting faces. Vertical locking bars 30, 31 are disposed within the channels 28, 29 and an axial rod 34 having conical nuts 35, 36 is provided whereby on screwing the nuts along the rod 34 the locking bars are forced apart and by means of their angular grooves 32, 33 coacting with corresponding parts on the opposed channels draw the frame members 11, 12 firmly together. These frame members 11 12, are also provided with dovetail channels 15 whereby glazing 5, 6, 7 may be positioned. The rear frame 3 of the cabinet is provided with three doors 8, 9, 10 giving access to the interior the end door pillars 17 being keyed to the vertical side frame members by vertical keys 18 of double-dovetailed section intermediate door pillars 21 and sealing strips 22 being provided. The top and bottom frames 13, 14 are provided with hollow box-section frame members connected to the vertical members by plugs or dowels 25 pinned in the ends of the hollow frame members and being provided with a protruding dovetail portion fitting into the channels 15 of the vertical members. The upward extending flanges of the top frame form a recess for the glazing 44 while the bottom frame is dropped into an opening formed in a surrounding metal frame having an outer base flange 48.
Patent GB-1156252-A (GB)
Title: Apparatus for Applying Plastic Sealing Materials to Foundations to be Sealed
IPC: E02B3/12
Filed: 1967-08-02
Abstract: 1,156,252. Waterproofing soil; laying waterproof layers. DEUTSCHE ERDOL-A.G. 2 Aug., 1967 [4 Aug., 1966], No. 35424/67. Headings E1F and E1H. An apparatus for applying a layer of plastic, waterproofing material to an exposed or submerged soil surface. In the apparatus is a container 4 for bulk storage of the material, which is urged by a conveyer band 5 into the inlet of a feed conduit 2, 3 having a cross section corresponding to that of the layer to be laid from the conduit. The upper wall 2 of the conduit extends, at the outlet of the conduit, beyond the lower wall 3 to prevent wave formation in the material as it leaves the conduit. The rate of flow through the conduit can be controlled by the friction created by a partition 3a within the conduit, the length of which partition can be varied to suit the material. To allow of a staggered joint between adjacent layers part of the cross section of the conduit at the outlet is offset laterally in relation to the remainder of the cross section.
Patent GB-1460068-A (GB)
Title: Zero crossover circuit
IPC: H03K5/1536
Filed: 1974-08-12
Abstract: 1460068 Zero switching of A.C. WESTING- HOUSE ELECTRIC CORP 12 Aug 1974 [13 Aug 1973] 35437/74 Heading H2H A circuit for producing an output pulse at a zero-cross-over point of an A.C. voltage waveform comprises 2 diodes CR1, CR2, Fig. 1, of like polarity connected in series and in series with a capacitor C1, these components forming a circuit branch for connection across an A.C. source 12 at terminals 10, 11, a Zener diode CR3 connected across the capacitor and a voltage level detector 16 connected across the capacitor C1 at terminals 21, 22 and adapted to produce an output pulse when the voltage at an input 18 of the detector, which is derived from the A.C. supply, is a predetermined value of the voltage simultaneously across the capacitor. The detector 16 may comprise two NAND gates Z1A, Z1B with positive feedback via resistor R3. Output is derived from gate Z1A across resistor R4 and via differentiator C2, R6 and input across resistor R2 connected to the junction of the diodes. The gates act as a Schmidt trigger and are off during all negative half cycles and all positive half cycles until diode CR2 is cut-off when the capacitor voltage e c  is greater than the voltage at 19 i.e. (R1/(R1 + R2))e s , where e s  is the instantaneous A.C. voltage. The detector 16 will fire "on" after this time and when the input voltage e 2  at 18 is 50% of that of e c  to produce a pulse at 26, 27. As shown in Fig. 3 the capacitor C1 charges from zero at the beginning of a positive half-cycle to the Zener voltage. The detector switches on when the voltage at 18 is 50% of e c  to produce the pulse e 3 , the capacitor C1 discharging through the gates. If the polarity of the A.C. is reversed, pulses will be produced at the upward zero crossing. The output circuit may be replaced by an optical isolator system.
Patent GB-1146929-A (GB)
Title: Coupling for a flat woven band or tape
IPC: B64F1/02
Filed: 1967-08-02
Abstract: 1,146,929. End attachment for bands. E. W. BLISS CO. 2 Aug., 1967 [18 Aug., 1966], No. 35510/67. Heading D1T. A flat woven band B has one end opened up and impregnated with plastics to form a lug 10 having diverging side walls 12, 14. The side walls 12, 14 rest on floating inserts 60, 62 in a coupling A. Each floating insert has a first surface 64 that matches one of the side walls 12, 14 of the lug 10 and a second surface 66 that coacts with a cam surface 54 in the coupling A to force the first surface 64 of the insert against the outer end of the lug 10 when tension is applied to the band. As the tension in the band B increases the floating inserts 60, 62 re-distribute forces from the smaller end of the lug 10 to its larger end. In Fig. 4 (not shown) grease nipples are included to convey lubricant to said second surfaces 64, and the lug 10 is in two "mirror image" parts. In Fig. 5 (not shown) -needle bearings are positioned between said second surfaces 64 and the cam surface 64. In Fig. 6 (not shown) a plain bearing of antifriction means is used between the surfaces. In Fig. 7 (not shown)) the cam surface 54 is of rectangular shape and said second surface has a rocking point contact therewith.
Patent GB-438095-A (GB)
Title: Improvements in or relating to the manufacture of piston rings
IPC: C21D9/40
Filed: 1934-12-12
Abstract: 438,095. Making piston-rings; annealing. LEEDS PISTON RING & ENGINEERING CO., Ltd., Goodman Street, Hunslet, and FISHER, G., The Moorings, Harrogate Road, Alwoodley, both in Leeds. Dec. 12, 1934, No. 35653. [Class 83 (ii)] [See also Group II] Circular rings 1 are cut to form gaps, and are held expanded for heat treatment and cooling by a bar 3 on which the rings are assembled side by side, and comprising flared diametrically opposed longitudinal grooves 3<x>, the body of metal between the grooves providing the abutment for the ends of the rings. Clamps 4 retain the assembled rings. In a modification, a spider 5 having a carrying handle 6 supports a bar 3 adjustably in a slot 9, the rings resting on the base 5 and being retained by a clamping member. The rings are closed to circular form for grinding.
Patent GB-1392375-A (GB)
Title: Toy vehicle
IPC: A63H17/05
Filed: 1972-08-01
Abstract: 1392375 Toy vehicles TOMY KOGYO CO LTD 1 Aug 1972 35853/72 Heading A6S [Also in Division H1] A toy vehicle driven by an electric motor powering ground-engaging wheels and having ground-engaging wheels turned to steer the vehicle has a control panel 10, Fig 1, including press buttons both to control the motor and also to steer the vehicle. As shown, one set of press buttons 106 are operated to steer the vehicle to the left, straight ahead or to the right, and another set of press buttons 106' are operated to cause the motor to drive ahead, stop or to reverse. The press buttons 106, 106' Fig 5 are mounted in holes through a cushion 102 of sponge material whose resilience biases them to the inoperative position shown. A bracket 98 holds the sponge material 102, &c on the vehicle above two slidable plates 44, 62 having slots and notches 94, 96 (see also Fig 4) into which the pointed lower ends of the press buttons 106 are selectively inserted as the buttons are depressed. The plates 44, 62 are accordingly slidden transversely relatively to the vehicle body to positions in which they are retained by spring detents 92 engaging in notches 90 in their edges. The plate 44 is connected by pivot pins 60 to arms on steerable front vehicle wheels 54 accordingly turned about their kingpins 58. The plate 62 carries two electrical contacts 64 which slide across the separate contact faces 68, 70 of a switch and across insulating material 72 between the contact faces. The electric motor (30), Fig 3 (not shown), of the vehicle is in circuit with the contact faces 68, 70, the arrangement being such that with the contacts 64 positioned as shown, on the insulating material 72 the motor is switched off: by depressing the appropriate button 106D or 106F one of the contact fingers 64 engages the surface 68 or the surface 70 for forward or reverse drive of the motor. The motor (30) is positioned at the rear of the vehicle and drives through a train of gears to the rear axle. As shown, the vehicle pulls a trailer 12.
Patent GB-344009-A (GB)
Title: Improvements in rotary engines
IPC: F01C1/344
Filed: 1929-11-22
Abstract: 344,009. Rotary engines. ARUGA, G., 19, Corso Bramante, Turin, Italy. Nov. 22, 1929, No. 35875. Convention date, 'Dec. 1, 1928. [Class 110 (ii).] Fixed-abutment type ; packing drums and vanes.- A rotary engine has a double-cylindered stator 1, eccentrically disposed rotors 7, 7<1> with their shafts 6, 61 geared together, and vanes 16, 17 (see Fig. 4) which move diametrically in slots 14 in the rotors. Vane parts 16 are rigidly fixed to the central portion 15 but plates 17 are constructed as shown in Figs. 6 and 10. Spring rings 35 of triangular cross section tend to force the outer segments outwards. Wings 20, 21 are also fixed to the vane body but intermediate plates 38, 39 are each in four portions and bear on a spring ring 41 which fits round a hub on the body 15. The joints of plates 38, 39 are staggered to prevent leakage losses. Rollers 23, or ball bearings, bear on the sides of the slots 14. Packing means between the rotor ends and the stator walls are provided in the form of two spring rings 29, 30 of the cross section shown in Fig. 14 which bear on conical seats 24, 27 on the rotors and the stator walls.
Patent GB-367063-A (GB)
Title: Method of making vitamin-containing beer
IPC: C12C5/02
Filed: 1930-11-28
Abstract: Vitamin-containing beverages, particularly beers, are prepared by adding yeast cell sap obtained from yeast which has been destroyed by treatment in colloid mills or by mixing with quartz sand and pressing the mixture through closely disposed rolls or by other mechanical means such as spraying the yeast under high pressure against smooth or roughened surfaces.  The yeast remaining after the fermentation may be destroyed in this way, by the provision of a receptacle into which the yeast can settle and which contains a colloid mill or by a short boiling of the beverage.  The crushed yeast is then flushed by the beverage which is then filtered from the cell residue.  The boiling of the wort is preferably carried out in boilers excluding oxygen.  The Specification as open to inspection under Sect. 91 (3) (a) states that the yeast might be destroyed by autolysis.  This subject-matter does not appear in the Specification as accepted.
Patent GB-630885-A (GB)
Title: Improvements in or relating to measuring devices dependent upon radiometer action
IPC: G01L21/00
Filed: 1946-12-05
Abstract: 630,885. Electric indicating systems. EDWARDS & CO. (LONDON), Ltd., W., and STECKELMACHER, W. Dec. 5, 1946, No. 35981. [Class 40 (i)] In a high vacuum gauge of the type due to Knudsen in which the " radiometer " action or pressure caused by the momentum of molecules leaving a hotter plate and arriving at a cooler plate is used to cause relative movement between the plates against the action of a restoring force, the pressure of the gas in the container being related to this molecular pressure and to the temperature, the cooler plate is made metallic and forms one plate of a condenser. As shown, the hot plate 14, cold plate 18 and a third plate 15 forming the second plate of the condenser are mounted in a cylindrical shell 11 having a vacuum connection 11a at one end. The cold plate 18 is a thin perforated diaphragm, mounted on a perforated cylinder 16a to equalize the gas pressure on each side of the diaphragm. Plate 15 is adjustable by means of a screw 12 operating against the base of a sealing bellows 13. An insulating ring 19 divides the base of the instrument into two parts from which the condenser connection may be taken. The change of capacity of the condenser may vary the oscillation frequency of a tuned circuit, this frequency being then heterodyned against the output from a crystal-controlled oscillator and the resultant beat frequency being measured on a frequency bridge or by converting to D.C. by means of a discriminator. Alternatively the output of the oscillator may be twice heterodyned with two standard outputs of a master oscillator and then supplied to a discriminator by way of an amplitude limiter. The range of the instrument may be increased by using it in conjunction with a manometer pressure gauge. A high permittivity dielectric may be interposed between the diaphragm 18 and the second plate 15. This dielectric may be in the form of a sheet or plate or may be silica deposited by vaporization in vacuo.
Patent GB-1132959-A (GB)
Title: Pneumatic compaction of asphalt compositions
IPC: E01C19/23
Filed: 1966-08-11
Abstract: 1,132,959. Road rollers. CHEVRON RESEARCH CO. 11 Aug., 1966 [13 Aug., 1965], No. 36080/66. Heading B7H. [Also in Divisions B1 and B2] A manoeuvrable compacting and rolling vehicle comprises a steel driving roller 4 powered by a diesel engine 11 and supporting a side member 1 of the main frame, a plurality of pneumatic tyres 3 rigidly mounted on a front axle (21) which is rotatably mounted in a yoke 19, a tiller wheel 17 mounted on a platform 12 and operably connected to the yoke, an emulsion reservoir 23 mounted on an auxiliary frame 22 and pressurized from pressure reservoir (28), (Fig. 4, not shown), a plurality of nozzles 42 through which emulsion from the reservoir 23 is sprayed on to tyres 3, and mats or wipers 46 which serve to spread the emulsion on to the faces of the tyres. The flow of emulsion is controlled by lever 33. The diameter of the pneumatic tyres 3 is normally from ¢ to 1/3 the diameter of the steel roller.
Patent GB-518056-A (GB)
Title: A process for the manufacture of artificial dentures and dental plates
IPC: A61K6/884
Filed: 1938-12-10
Abstract: 518,056.. Moulding synthetic resin dentures. DE TREY FRERES SOC. ANON. Dec. 10, 1938, No. 36098. Convention date, Aug. 23. [Class 87 (ii]) In moulding dentures from thermo-setting synthetic resin, a resin is employed which hardens without producing volatile products and hardening is effected by heating in an oil bath without pressure. A plaster mould is prepared and water removed therefrom as by heating in an oil bath. The resin is packed into the dried plaster mould which is then closed and heated ni the oil bath. The dried plaster may be coated with a cellulose or other varnish. The synthetic resin may be that set out in Specification 518,057, [Group IV], is referred to.