baber/WOPTO huggingface dataset:
Patent GB-290848-A (GB)
Title: Method of making abrasive devices
IPC: B24D18/00
Filed: 1927-06-16
Abstract: 290,848. Hutto, M. C. June 16, 1927. Tamping - machines. - Abrading devices made from granular materials are compacted uniformly by placing them in a mould, subjecting them to a preliminary light pressure by means of independent pressing-members acting on different portions of the surface, striking off the mould and finally subjecting the remaining compacted material to the final pressure in the moulding machine. The material is placed, for example, in a mould shown in Fig. 3, having a removable frame 2' at the top and is subjected to the weight of tamping-rods each of which acts independently of the others. The rods may act on part of the surface only at one time and the mould may be moved by screw-and-nut mechanism 20, Fig. 1, to bring them into action over the whole surface in stages. After the pressing, the frame 2<1> is removed and the pressed material struck off level with the mould top, before the mould and block are removed to a different machine for the final pressing. The tamping members are supported in the raised positions by springs 29 and are allowed to fall into the acting position by drawing down the spring-mounted rod 7 attached to the ends of crank arms 8. Slots 6 in the tamping-members allow sufficient clearance for them to take up varying positions as indicated in Fig. 3.
Patent GB-221032-A (GB)
Title: Improvements in syringes or sprayers
IPC: A62C11/00
Filed: 1924-01-04
Abstract: 221,032. Grimley, W. Jan. 4, 1924. Buckets; single - acting bucket pumps; pipes; strainers; valves, arrangement of.-The cylinder 1 is connected at the rear end to the suction pipe 25 provided with a non-return valve 28, and the holes 19 in the piston 2 are controlled by a valve 13, which move away from the piston during the back stroke until a pin 21 on a rod 15 attached to the valve engages the piston. During the forward stroke the valve is pressed against the piston, and the liquid is forced through the delivery valve 7. The forward end of the cylinder may have a hand grip 36. The end of the suction pipe may be mounted on legs 32, and may carry a strainer 31. The suction valve casing may be mounted on a float.
Patent GB-542716-A (GB)
Title: Improvements in or relating to quickly releasable pipe joints
IPC: F16L21/06
Filed: 1940-11-06
Abstract: 542,716. Pipe couplings. WOOD & CO., Ltd., H., BRITTON, W., and TAGG, W. H. Nov. 6, 1940, No. 16165. [Class 99 (i)] In a quickly releasable pipe coupling of the kind in which two semi-circular channel-section housings 1, 2 are flared internally so that, when drawn together, they tighten the flared ends A, B of the pipes on to an interposed packing C, the housings are formed at one end with bosses 1a, 2b and provided with a pin 4 which passes through a hole in the boss 1a and is bent at right angles at 4a so as to engage a cam recess 2d in the other boss 2b, so that when the arm 4a is pressed down, the two housings are drawn together. They may be locked in this position by a pin 5 engaging holes in the boss 1a and pin 4. The 'other ends of the housings may have their bosses 1b, 2a similarly provided, or merely hinged together, as by means of a hooked pin 3a. The members A, B may be serrated fittings for the attachment of the ends of hose pipes ; or the coupling may be used for connecting a pipe or hose to a stop valve.
Patent GB-684180-A (GB)
Title: Improvements relating to electrical rectifier circuits
Inventor: CALVERLEY THOMAS EARNSHAW
IPC: H02H7/127
Filed: 1950-06-30
Abstract: 684,180. Rectifying. ENGLISH ELECTRIC CO., Ltd. Oct. 1, 1951 [June 30, 1950], No. 16390/50. Class 38 (ii) A rectifier arrangement, comprising a multianode grid-controlled vapour rectifier supplied from a polyphase source, is connected to an inductive load circuit, means being provided to hold the grids sufficiently negative to prevent discharge to any anode for the purpose of interrupting the direct current flowing in the load, with the exception that each grid is cyclically made positive to permit discharge to the corresponding anode at a time when the alternating source voltage applied to the anode is negative with respect to the neutral point of the source. An inductive load 14 is supplied from a three-phase source by way of a transformer 10, 11 and rectifier 13, the neutral point being the centre tap of an interphase transformer 12. The rectifier grids are normally anodeconnected by means of a number of potentiometers 16, no delay of the firing of the anodes being occasioned. To interrupt the flow of direct current in the load 14, cam-operated contacts 15 are closed, thus applying a negative bias to all the grids from a source 19. Under these conditions, and at instants when the anodes are negative with respect to the neutral point of the interphase transformer 12, positive pulses from an impulse generator 20 are applied to the corresponding grids by way of a corresponding transformer 17. When, however, current is decaying in the load 14 an induced voltage appears thereacross which is sufficient to drive the anodes positive to the cathode and thus initiate discharge so that the arrangement functions as an inverter and power is returned to the supply mains. The contacts 18a form a safety device and operate in conjunction with any one pole of the main switch 18. A number of single anode rectifiers may be used in lieu of a multi-anode rectifier.
Patent GB-943789-A (GB)
Title: Arrangement for controlling a step switchgear
IPC: B60L15/18
Filed: 1962-04-30
Abstract: 943,789. Control of motors. MASCHINENFABRIK OERLIKON. April 30, 1962 [May 4, 1961], No. 16455/62. Heading H2J. Stepping switchgear for traction motors, is controlled by transductor 1 having one of its control windings connected to the main circuit of a second transductor 2. For acceleration, the switchgear is arranged to step up while a relay 8 is closed, and halt while it is open. The relay current I 1  is controlled by the main windings 1.1 and 1.2 of transductor 1 and can close the relay only when current I 2  in control winding 1.5 is sufficiently greater than a current IM, proportional to motor current, in a further winding 1.4. The current I 2  is controlled by the second transductor which forms a variable impedance across a resistor 15 in the I 2  supply circuit. Transductor 2 is in turn controlled by a current Iv opposing Im which flows through a control winding of this transductor also. With the motor at rest, switching on Iv results in the closure of relay 8 and the stepping switchgear increases the motor current until IM is great enough to cause the relay to open. The current IM, however, also flowing in transductor 2, causes an increase in I 2  after a suitable delay caused by a winding 2.5 short-circuited through an adjustable resistor 16. The increased I 2  can now re-close relay 8 to further step the switchgear. The advance can be stopped at any point by closing a switch 5 to short circuit the IM winding of transductor 2. For slower rates of starting an additional resistor 12 can be switched into the I 2  circuit. For deceleration, switch 5 is closed, causing relay 8 to drop out, and this is now arranged to cause the switchgear to step downwards, halting when the relay is energized. In case of wheel spin a device connects the switchgear for downward stepping and closes a switch 14 to cut-out self saturating rectifiers 13 in the main winding of transductor 2. It is explained that this rapidly results in relay 8 opening so that the switchgear steps down.
Patent GB-973512-A (GB)
Title: Spreadable plug
IPC: F16B13/06
Filed: 1962-04-30
Abstract: 973,512. Screw sockets. A. FISCHER. April 30, 1962, No. 16468/62. Heading F24. A plug for fixing a plate 2 to a wall 1 comprises a tubular body having a rear portion 5, permitting the free passage of a screw 8, and a front portion 6 with a thread 6a engageable with the screw. The end portions 5 and 6 are connected by an intermediate portion having longitudinal divisions 4 and incorporating locking projections 4a. The divisions are smaller in cross section at the rear end portion 5 than at the front portion 6 to reduce their resistance to bending. The divisions are radially compressed when the plug is passed through the bore 1b of the wall and subsequently expand beneath the surface la except for the part of the divisions immediately adjacent the rear portion 5. When the inserted screw is tightened the front portion 6 is drawn towards the rear portion 5 with subsequent bending of the divisions 4. At the same time the locking projections 4a penetrate the wall 1 to axially and rotationally secure the plug. The plugs may be provided with two or more divisions and may be made from synthetic plastics material.
Patent GB-186893-A (GB)
Title: Improvements in or relating to molds employed in the manufacture of tire casings
IPC: B29D30/06
Filed: 1922-06-14
Abstract: 186,893. Greenspan, M. Oct. 3, 1921, [Convention date]. Moulding wheel tyres.-In a two part mould in which a ring 9 is fitted over the joint between the two parts 5, the ring and the adjacent surfaces are provided with similar grooves 6 to form the tread design.
Patent GB-295795-A (GB)
Title: An improved construction of fitting for expanding suit cases and the like
IPC: A45C7/00
Filed: 1927-06-22
Abstract: 295,795. Towler, W. J. H., and Darwen & Co., Ltd., J. S. June 22, 1927. Hasp fastenings for suitcases and the like comprise a slidable strip 4 formed with teeth 11, the strip being slidable between a resilient device 13 and an abutment 12 for engaging the teeth. Play is provided by an opening 18 in the lower end of the sleeve 5 to enable the strip 4 to be moved over the abutment 12 until the hasp plate 3 is in a selected position. Means are provided to prevent the strip 4 from being withdrawn from the casing 5.
Patent GB-554979-A (GB)
Title: Improvements in or relating to tapping, studding and like tools
IPC: F16D7/08
Filed: 1941-12-26
Abstract: 554,979. Tapping and studding attachments. BROOKS, T. J. Dec. 26, 1941, No. 16689. [Class 83 (iii)] Tapping &c. attachments are pro vided with an adjustably spring loaded yielding drive. The socke a formed to fit a lathe or other machine is hollow to contain the spring b that presses on the closed end of a thimble d filted witt a transverse pin g working in slots i in the socket. The under surface of the thimble is formed with notches p into which a cross pin A in a shank n is pressed by a washer r and screwed sleeve q adjustable in the socket and locked by a nut s The shank is provided with a tap holding chuck v. When used for studding the shank n is replaced by a similar shank formed at its outer end as a stud box. The socket may be provided with cross holes for a trimming bar for hand actuation, an extension connected by a universal joint being used after the tap has been started.
Patent GB-713712-A (GB)
Title: Improvements in or relating to electric heating elements and apparatus incorporatingsuch elements
Inventor: CAIRNCROSS HARRY SIDNEY
IPC: H01H85/02
Filed: 1952-07-03
Abstract: 713,712. Fusible cut-outs. GENERAL ELECTRIC CO., Ltd. July 3, 1953, [July 3, 1952.] No. 16772/52. Addition to 682,697, [Group XI]. Class 38(I). [Also in Group XI] In an electric heater as in the parent Specification a fusible element I2 comprises a screwthreaded rod of cadmium, which is readily engaged with the separated ends of two parts of a helical wire heating resistance 10 so that it is in series therewith. The resistance wire 10 is supported on a cruciform former 11 and is mounted in a stream of fluid to be heated; and should the flow of fluid over the heater be restricted e.g. by failure of an air fan, the fuse 12 melts.
Patent GB-436436-A (GB)
Title: Process for the preparation of wort and of beverages by fermenting this wort
Filed: 1935-06-11
Abstract: Wort is produced by boiling milk products, sugary substances and hops or hop substitutes, and may then be fermented by yeast to yield a beverage.  Milk products include skimmed milk, condensed skimmed milk, skim milk powder, whey powder and the like.  Sugary substances include starch, sugar syrups, dextrines, cane sugar, lactose, glucose and the like.  In an example, skimmed milk, cane sugar, soluble starch diluted malt colouring and hops are boiled with water, cooled and filtered.  Fermentation is then effected by brewer's yeast at 10 DEG  C. for two days and then at 4 DEG  C. for four days.  The resultant beer is then bottled, stored at 10 DEG  C. and pasteurized after about five weeks.
Patent GB-1079447-A (GB)
Title: Improvements in or relating to guards for window openings
IPC: E05D15/00
Filed: 1963-04-29
Abstract: 1,079,447. Window guards; turn button fastenings. M. E. DODGE. April 29, 1964 [April 29, 1963], No. 16845/63. Headings E1J and E2A. A window guard comprises an openwork panel 15 overlapping the window frame 11 which has mounted thereon at opposite sides a cylindrical housing 16 arranged to pass through an aperture 32 in the frame 14 of the panel 15 and slotted at 28 to accommodate tongues 25 pivoted at 26 in the housing and having arcuate portions 27 engaging a toothed rack bar 23 axially movable to rock the tongues into the operative position shown to secure the panel 15 to the frame 11 in which position the bar 23 is looked by a key-operated latch 30 which is brought into the path of movement of a projection 31 on the bar. The housing may be replaced by a projecting loop which projects through the aperture 32 and is locked therein by the loop of a padlock passed through the projecting loop.
Patent GB-109541-A (GB)
Title: Improved Means for Heating Glass and similar Reverberatory Furnaces.
IPC: C03B5/235
Filed: 1916-11-24
Abstract: 109,541. Tyne Glass Works, and Roxburgh, A. B. Nov. 24, 1916. Glass furnaces: reverberatory furnaces.-In a glass furnace or reverberatory furnace fired by gas generated in a combined producer, the gas is led off from the producer by an outlet below the surface of the fuel therein, and a dust trap is disposed between the producer and the furnace. In the construction shown in Fig. 1, the dust trap has a downwardly projecting arched baffle d. To prevent damage by back-firing a hinged flap, opening outward, is fitted in the discharge opening of the dust-trap. In a modified construction, Fig. 5, the gas is led out of the dust chamber by a depending pipe p. Air for combustion is heated in flues g below the bed of the furnace, between which are arranged waste gas flues.
Patent GB-369478-A (GB)
Title: Improvements in and relating to hollow metal screw propellers
IPC: H02K27/06
Filed: 1931-06-11
Abstract: 369,478. Screw propellers. JUNKERS, H., 21, Kaiserplatz, Dessau, Anhalt, Germany. June 11, 1931, No. 17009. Convention date, June 30, 1930. [Class 114.] A hollow metal screw propeller is formed with an internal metal framework which is integral with the solid blade tip. The blade is formed with longitudinal members m, m<1>, which are integral with the solid blade tip a<1>, the cross members c<1>, c<11>, c<111>, and the shank d<1>. On this framework is secured a leading metal plate b<11>, and a thinner trailing plate b<1>. A cap e forms a cover for the junction of the blade and shank. The cross members are pierced for the passage of tools. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a solid tip a, Fig. 1 (Cancelled), which is attached to a hollow metal casting b which is itself secured to a cross member c integral with the shank d. This subject-matter does not appear in the Specification as accepted.
Patent GB-529898-A (GB)
Title: Carrier for heat conductors
IPC: H05B3/16
Filed: 1939-06-10
Abstract: 529,898. Coating metals; LAUBMEYER, G. June 10, 1939, No. 17073. Convention date, June 30, 1938. [Class 82 (ii)] To produce an electric heating body for heavy loading, comprising an iron carrier for the heat conductor, the finished iron carrier is tightly wrapped with aluminium foil or sheet and then the heating body or bodies proper is or are applied or wound with exercise of mechanical pressure and thereafter the heating body is brought to a temperature near the melting point of aluminium to form an iron-aluminium alloy.
Patent GB-314205-A (GB)
Title: Improvements in chairs convertible into bedsteads or couches
IPC: A47C17/16
Filed: 1928-06-13
Abstract: 314,205. Sch÷berl, R. June 13, 1928. Bedsteads convertible into chairs.-In a chair convertible into a bedstead, of the kind comprising a back-rest formed of two frames 1, 1<1> hinged together at their upper edges 2 so that they can be swung into a common plane, the rear frame 1<1> rests at its lower edge on the seat frame 4 and carries feet 6 adapted to engage gaps between the frame 4 and the arm-rests 5, while the shorter forward frame 1 is hinged at 3 to the arm-rests 5 by members which allow it to rest on the seat frame 4 when the two frames 1, 1<1> are lowered into their horizontal position.
Patent GB-1099715-A (GB)
Title: Surgical douches
IPC: A61M3/02
Filed: 1965-04-23
Abstract: 1,099,715. Soap. holders. H. B. LLOYD. April 23, 1965, No. 17230/65. Heading A4V. [Also in Division A5] A soap holder arranged in a douche nozzle conduit 34 for attachment to a hot tap, comprises a two part container 38, the lower part 48 of which has sharp projections 110 or fasteners 118, 126 for securing a cake, perforate package (120) or basket (122) of soap for solution in the water. The container also includes a temperature responsive bellows 82 (see Division A5-A6) which causes opening of the container to break the flow of water to the nozzle if the water is too hot.
Patent GB-957058-A (GB)
Title: Heater unit for glass working apparatus
IPC: C03B9/12
Filed: 1961-05-11
Abstract: An apparatus for making glass bulbs comprises ribbon forming rollers 11, 12 depositing a molten ribbon of glass having spaced charges 15 on to a conveyer embodying a chain of orifice plates 14, and a plurality of heads 18 for blowing the charges to hollow form in suitable moulds (not shown) temporarily associated with the orifice plates during the travel of the conveyer. Each charge is heated on the conveyer between the rollers and the blower heads by a gas burner (see Division F4) providing a series of flames directed on to the charges and adapted to travel along an outlet slot of the burner at the same speed as the conveyer. Specification 276,606 is referred to. <PICT:0957058/C1/1>
Patent GB-666610-A (GB)
Title: Improvements connected with slubbing, dying and bleaching tanks
IPC: D06B23/14
Filed: 1949-06-30
Abstract: <PICT:0666610/IV (c)/1> A slubbing, dyeing or bleaching tank 5 is characterized by a tank cover 6 which has mounted thereon a plurality of slidably operable members 9 to the lower ends of which is secured a scray 10, whilst means are provided on said cover 6 for automatically locking the scray by means of said slidably operable members in its adjusted position in the tank, as said scray follows down the material under <PICT:0666610/IV (c)/2> treatment owing to the shrinkage of said material.  The tank cover has pivoted pawls thereon which engage the rack teeth on the upper ends of the slidable tubes thereby automatically locking the scray on following down the material under treatment in the tank.
Patent GB-1508001-A (GB)
Title: Telecommunications repeater units
IPC: H01P1/00
Filed: 1975-04-25
Abstract: 1508001 Repeaters SIEMENS AG 25 April 1975 [6 May 1974] 17339/75 Heading H4R A repeater unit comprises an amplifier or regenerator 5 powered from the voltage dropped across an element 11 connected between low pass filters 10, 12 and distortion connectors consisting of twin-section terminated lines 13, 14 having different surge impedances. The signal and powerseparating paths are defined by filters including the terminating impedances 19 and capacitors 20. The line sections 13, 14 are printed etc. on substrates and sand jet or laser trimmed. A gas-filled surge arrestor may be built into the casing 18 forming the return conductor.
Patent GB-969733-A (GB)
Title: Pronged device for connecting wooden members
IPC: F16B15/00
Filed: 1963-05-02
Abstract: 969,733. Spiked plates. FOLEY & LAVISH ENGINEERING CO. May 2, 1963 [May 7, 1962], No. 17343/63. Heading F2H. [Also in Division B3] A connector plate for joining wooden members comprises a plurality of polygonal openings 14 having prongs 30-33 integral with the plate at each corner of each opening, the prongs each having a right-angular configuration and a pointed tip 50-53 directed away from the opening. The plate is initially slit and drilled as in Fig. 2 and the prongs then formed by a punch and die, the initial movement of the punch curving the tips of the prongs outwardly. Two timber sections 10, 11 are joined by plates 12 on opposite sides, the plates being initially located by nails through openings 18. When driven home, the spikes curve as shown in Fig. 7 to clinch them fast.
Patent GB-515758-A (GB)
Title: Improvements in or relating to methods of producing hosiery and hosiery produced by the same
IPC: D04B9/46
Filed: 1938-06-11
Abstract: 515,758. Hosiery. ABBEY, A. (Dursteler & Co., Akt.-Ges., J.). June 11, 1938, No. 17405. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 12, 1939.] [Class 141] [Also in Group VIII] A stocking or sock has the heel or toe or both formed in two layers, the second layer being produced after completion of the first by applying the fabric to the needles of a footing machine, to form two correspondingly narrowed layers. The two layers are seamed separately at 5, 6 and 10, 11 to form the double heels 7, 8 and toes 2, 3. Either toe or heel can be removed at will to leave the remaining thickness intact.
Patent GB-1225015-A (GB)
Title: An improved process for manufacturing crimped polyacrylonitrile fibre
IPC: D01F8/08
Filed: 1968-04-11
Abstract: 1,225,015. Polyacrylonitrile composite heatcrimpable filaments. INSTYTUT WLOKIEN SZTUCZNYCH I SYNTETYCZNYCH. 11 April, 1968 [12 April, 1967], No. 17440/68. Heading B5B. Heat crimpable polyacrylonitrile composite filaments are produced by simultaneously extruding through each extrusion orifice of a spinneret (adapted for the spinning of composite filaments) into a spin bath consisting of a dilute aqueous solution of sodium thiocyanate a solution of polyacrylonitrile in a concentrated aqueous solution of sodium thiocyanate and a solution in a concentrated aqueous solution of sodium thiocyanate of a partially hydrolyzed polyacrylonitrile. The proportion by weight of hydrolysed polyacrylonitrile in the composite filaments may be 5 to 95% (preferably 15 to 50%) based on the weight of the combined spinning solutions. The acrylonitrile polymers used may be the homopolymers or copolymers of acrylonitrile with another monomer, the copolymer containing at least 80% by weight of acrylonitrile units. In an example, two spinning solutions each containing 12% by weight of acrylonitrile polymer dissolved in a 51% aqueous solution of sodium thiocyanate are simultaneously extruded at equal rates without being mixed through each extrusion orifice of a spinneret adapted for the spinning of composite filaments into a 10% aqueous solution of sodium thiocyanate at a temperature of about 10‹ C. to form composite filaments. One polymer is a copolymer of acrylonitrile, methyl acrylate and itaconic acid in the weight ratio 93: 6: 1 and the other polyacrylonitrile which has been partially hydrolysed by boiling with an aqueous solution of a caustic alkali until its nitrogen content is reduced to 22% by weight. The composite filaments thereby formed are stretched in steam at a stretch ratio of 8: 1, washed with water at 50‹ C., dried at 80‹ C. and shrunk in water at 100‹ C. whereby the filaments develop about 6 helical crimps per cm. due to the difference in the shrinkability of polyacrylonitrile and partially hydrolysed polyacrylonitrile.