baber/WOPTO huggingface dataset:
Patent GB-1093895-A (GB)
Title: Refractory shell moulds
Inventor: LARN JOHN DAVID
IPC: B22C9/04
Filed: 1964-03-25
Abstract: 1,093,895. Moulds. BRISTOL SIDDELEY ENGINES Ltd. March 25, 1965 [March 25, 1964], No. 12654/64. Heading B3F. A method of making a refractory shell mould comprising the steps of coating a readilydispersible pattern with a refractory material to form a rigid compact shell and applying to the outer surface of the shell, that is the surface not in contact with the molten metal during a casting operation, a heat-resisting inorganic fibrous material to form a highly porous covering of low heat conductivity. The covering may be applied by spray coating a mixture of the fibrous material, a binder and a liquid. The coating may be applied to selected parts only of the outer surface of the shell. Alternatively, the coating may be applied by winding on the inorganic fibrous material in the form of tape, cord, roving or the like. The inorganic fibrous material is preferably asbestos or similar mineral fibre or it may be a synthetic mineral wool or glass fibre. A suitable material is sold under the trade mark " Refrasil."
Patent GB-962894-A (GB)
Title: Precision indexing device
IPC: B23Q16/08
Filed: 1963-04-01
Abstract: 962,894. Grinding. BRYANT CHUCKING. GRINDER CO. April 1, 1963 [April 6, 1962], No. 12761/63. Heading B3D. A precision indexing device for a grinding machine comprises a table 22 which is mounted for rotational and axial movement in a housing 46 and has a pair of precision locating members 37 engageable with a pair of locating surfaces 55 on the housing. The locating members are formed by cylindrical surfaces at the end of a bar 36 secured by screws 39 to the table and extending through a bore 35 in the table, the bore intersecting the axis of rotation of the table. The locating surfaces 55 are formed at diametrically opposed positions on the housing and have a concave shape complementary to that of the members 37. A pair of guard projections 42 are located on the table on an axis at 90 degrees to that of the bar 36, and the housing has a pair of recesses 54 which are also at 90 degrees to the axis containing the locating surfaces 55 and are somewhat deeper than those surfaces so that, in certain relative positions of the table and housing, the members 37 are received with clearance in the recesses at the same time as the guard projections are received in a groove 56 in the precision locating surfaces 55. The device may be used in a grinding operation in which workpieces 23, 24, Fig. 7, are mounted on the table for successive grinding of surfaces 25, 26 by grinding wheels 27, 28 between unloading and loading positions. In the loading and unloading positions, the undersurface 38, Fig. 9, of the table rests on the housing with the members 37 spaced from the surfaces 59 of the recesses and the guard projections located in the grooves 56 in the locating surfaces, and in the grinding positions of the table, the surface 38, Fig. 5, is spaced from the housing by the engagement of the locating members 37 with the precision surfaces 55. The surfaces 55 and 38 have grooves 57, 58, Fig. 11, to prevent damage to the surfaces by the guard projections. The table is guided for axial and rotational movement relative to the housing by bearings 66, 67 between a depending portion 34 of the table and an extension 49 of the housing. The portion 34 has relieved portions 75, 76, Fig. 2, in the region of the bearing 66 to permit limited relative movement of this portion and table in a direction transverse to an axis 74 which is parallel to the axis of the bar 36, and has relieved portions at 90 degrees to the portions 75, 76 in the region of the bearing 67 to permit limited movement of the lower end of the portion 34 in the direction of the axis of the bar 36 to ensure accurate seating of the members 37 on the surfaces 55. The axial and rotational indexing movements of the table may be effected by electric or hydraulic means. A cover 33 surrounds the table, and a source of low pressure filtered air is supplied to a passage 63 to prevent the creation of a vacuum and the drawing of dirt into the device as the table is lifted.
Patent GB-1457142-A (GB)
Title: Signal band width compression
IPC: H04N7/088
Filed: 1974-03-22
Abstract: 1457142 Video signal bandwidth compression COLORADO VIDEO Inc 2 March 1974 [30 April 1973] 12787/74 Heading H4F In a video signal bandwidth compressor, some or all of the lines of successive fields are sampled, as in Specification 1,286,981, but only some of the sampled fields are stored and subsequently read-out at a reduced rate to enable transmission over, e.g. a 1 kHz bandwidth telephone line. As shown the "sample video" comprises successive fields containing samples from say every second, fourth or eighth line, sampling occurring in different horizontal positions in successive lines so that effectively a vertical sampling line is swept horizontally across the video field. The first vertical sync. pulse C in the sampled video after a start pulse B opens a write gate in clock switching circuit 36 after a delay of 16 line periods 16H to ensure that writing-in commences in a blanking interval. The gate remains open for 256 line periods to write into buffer store 34 a whole field in 6-bit parallel digital form from A/D converter 24 as determined by 256 clock pulses F on line 38. The storage capacity should be sufficient to accept all the active lines (242¢) but insufficient to accept all the possible lines (262¢) in the system (which here is 525 lines). The next vertical sync. pulse after the end of the write gate signal D opens a read gate in circuit 36 to allow 256 pulses at a reduced rate determined by divider 54 to read out the stored field for D/A conversion 48. The reduction factor in divider 54 can be selected so that the stored fields are all even or odd or alternately even and odd in which case a field code 56 may be inserted in the enlarged blanking interval J in the form of the number or polarity of a pulse sequence. Alternatively (Fig. 5, not shown) an odd field and the succeeding even field may be written into respective stores and the output taken line by line from the stores in alternation. The video information may be handled in analogue form in analogue shift registers and sample-and-hold circuits (Figs. 10, 11, not shown). The digital shift registers, circuit 36, divider 54 and D/A converter are detailed in TTL circuitry.
Patent GB-449832-A (GB)
Title: Improvements in and relating to pipe lines for vacuum or suction cleaning installations
IPC: A47L9/24
Filed: 1935-04-30
Abstract: 449,832. Pipe-junction boxes. WILLMOTT, C. S., 283, Oxford Street, London. April 30, 1935, No. 12864. [Class 99 (i)] A junction box for a pipe line of a vacuum or suction cleaning installation is in the form of a hopper a with a welded-on &c. lid e, the hoppei having converging sides leading to a neck b to which an outlet pipe c is jointed by an external sleeve bl and the lid being provided with fixed sockets f, f<1> projecting therethrough to accommodate a plurality of adjustable inlet pipes d, d<1>. The inlet pipes d, d<1> are secured within the sockets f, f<1> by grub screws g, airtightness being effected by red lead &c. In a modification, the sockets f, f<1> are welded into the open end of the hopper in contact with one another, the lid e being dispensed with, and the upper edges of the front and rear walls a<1>, a<2> of the hopper are cut and folded into the space between the sockets and then welded to the latter.
Patent GB-310474-A (GB)
Title: Method of and apparatus for the continuous production of cold by the compression method
IPC: F25B1/053
Filed: 1929-04-25
Abstract: 310,474. Deutsche Gasgliihlicht-Auer- Ges. April 26, 1928, [Convention date]. Centrifugal pumps.-The vaporized refrigerant from the evaporator 10 of a vacuum refrigerating machine is drawn through the pipe 9 and the ports 4 in the diffuser 3 of a centrifugal compressor 1 by liquid of greater density than the liquid refrigerant. The liquid is drawn through the pipe 6 from an air-cooled condenser tank 5, and forced over the ports 4 by the electrically-driven impeller 2, the mixture of liquid and refrigerant vapour being compressed in the diffuser and discharged into the tank.
Patent GB-631402-A (GB)
Title: Improvements in or relating to electric terminals and bushes
IPC: H01B17/30
Filed: 1947-05-13
Abstract: 631,402. Binding-posts; bushings. SPORING, P. A., and TELEGRAPH CONDENSER CO., Ltd. May 13, 1947, No. 12903. [Classes 36 and 38 (i)] In a terminal such as is described in Specification 621,252, comprising a resilient bung 4 fitted in an aperture in a metal plate 2 and a wire 6 from apparatus such as a condenser 1, extending axially through the bung, the latter is provided with a tubular metal insert 5 extending wholly or partially therethrough, through which the wire passes and to which it is soldered at 7. The insert may be turned over to contact the inner and outer faces of the bung. The outer end of the insert may be formed with a flange provided integrally with a soldering tag (Fig. 2, not shown).
Patent GB-1064452-A (GB)
Title: Arc-welding head for the building up of metals by an oscillating electrode
IPC: B23K9/30
Filed: 1964-03-26
Abstract: 1,064,452. Welding by fusion. HUTA IM. LENINA. March 26, 1964 [March 26, 1963], No. 13031/64. Heading B3R. In arc welding head surfacing, e.g. hard facing, an electrode (18) is oscillated by an armature (7) disposed between two alternately energized electromagnets (8). Adjustable stops (6) control the oscillation amplitude. The electrode (18) passes through a curved guide (17) mounted on a pivot (13) and secured to the armature (7).
Patent GB-913532-A (GB)
Title: Injection moulding machine
Inventor: TURNER EDWARD DAVEY
IPC: B29C45/06
Filed: 1960-04-12
Abstract: 913,532. Injection-moulding machines. TURNER MACHINERY Ltd. Nov. 23, 1960 [April 12, 1960], No. 13048/60. Class 87(2). Injection moulding apparatus comprises an intermittently rotatable carrier 9 supporting four moulds 32 and mounted on a tie bar 4 so as to be axially reciprocable towards a fixed plate 3 and an auxiliary plate 61 by a hydraulically operated toggle mechanism, an injection unit having a nozzle 57 and adapted to inject material into a mould 32 through apertures 58, 60 in said plates at a first station, and a magnetic device 66 to assist the mould opening at the ejection station. With the apparatus in the Fig. 6 position, the toggle link is straightened and the carrier 9 and moulds 32, comprising base plates 33, 40 and mould halves 37, 41, are advanced to close plate 61 against plate 3 and depress a switch 84 which energizes coils surrounding steel heads 75. Simultaneously retraction of the magnetic unit is initiated by piston/cylinder unit 73 and a plunger 62 is advanced in cylinder 63 and abuts against plunger 55 thus advancing a thrust collar 54 which forces port 35 of the mould through pins 56 away from port 34 and against the energized retracting magnetic unit. The collar 54 then moves ejector unit 49 into chamber 48 and pins 50, 51 force out the moulded article. The carriage 71 of the magnetic unit is then returned to close the mould halves and switch 85 operated to de-energize the magnets. Switch 86 is then operated and fluid forced into cylinders 77 advances pins 78 and assists in the separation of the heads 75 and mould half 35. In the embodiments of Fig. 10 (not shown) a threaded cap is moulded and removed by rotation of the former. The unit 66 may be swung away from plates 3, 61 to facilitate cleaning &c. and a screw 14 is provided to accommodate moulds of different size. Specification 908,298 is referred to.
Patent GB-723201-A (GB)
Title: Improvements in and relating to apparatus for monitoring the transmission of electric signals
Inventor: PEACHEY FRANCIS ARTHUR
IPC: H04B3/46
Filed: 1950-05-24
Abstract: 723,201. Monitoring apparatus. BRITISH BROADCASTING CORPORATION. May 10, 1951 [May 24, 1950], No. 13085/50. Addition to 655,688. Class 40 (4). [Also in Group XL (c)] In apparatus for monitoring the transmission of signals between two points in a transmission system as described in the parent Specification, automatic gain control is provided for compensating changes in the loss of the link circuit 25 (Fig. 1 of 655,688), the gain of the amplifier terminating the link circuit being adjusted in dependence upon the carrier level on the link in the absence of modulation. Signals from the filter 24<1> of the link (Fig. 1) are applied to the grid of valve 27 (Fig. 2), the output of which is taken from terminal 31. Relay M is energized by the output of integrator 13 (Fig. 1) as long as that output exceeds a small predetermined value, and capacitor 37 is charged via resistor 38. When the output of the integrator falls to the said value, M relapses and relay N is momentarily operated by the discharge of capacitor 37. A voltage dependent upon the difference between the outputs of amplifier-demodulators 17 and 26 (Fig. 1) is applied between terminal 40 and ground and if the loss of link 25 has changed, this voltage charges capacitor 42 during the time that N is up, and when N falls back capacitor 42 discharges slowly through resistor 43. The time constant is varied as desired, e.g. when monitoring a radio channel to about 100 seconds. Specification 649,612, [Group XL (c)], also is referred to.
Patent GB-964825-A (GB)
Title: Bag with handle of weldable plastic material and method for producing such a bag
IPC: B65D33/06
Filed: 1962-04-05
Abstract: 964,825. Bags. CELLOPLAST A.B. April 5, 1962 [April 5, 1961], No. 13149/62. Heading A4G. A bag made of weldable material such as polyethylene or polypropylene in the form of a seamless tube sealed at one end by a transverse weld and cut at the other to form one or more integral handles. As shown in Fig. 1 a length of seamless tube has a fold at each side and is welded at intervals along its length at tines 3a and 3b. The handles are formed and a bag detached from the length of tube by a cut between tines 3a and 3b and punching out the portion 4. An alternative method of folding and punching out the tube is shown in Fig. 2.
Patent GB-122425-A (GB)
Title: Improvements in Apparatus for Filling Explosive Material into Shells or other Receptacles.
Inventor: SUMNER WILLIAM
IPC: F42B33/02
Filed: 1916-09-19
Abstract: 122,425. Sumner, W. Sept. 19, 1916. Cone and disk; hand and personal actuation. -An adjustable spring brake comprises a toothed wheel 37 mounted between triction disks 44 within resilient cheeks 36 on a movable hopper 5 and driven round by a fixed rack 38. The grip is caused by a spring 43 adjusted by a wing nut 41 with a pointer 45 at the end of the bolt 40 around which the toothed wheel 37 rotates. This grip can be thrown in and out of action by a handle 49 pivoted at 47 to the head of the bolt. The pin 47 is guided in a slotted bracket 50 on the adjacent cheek 36, and the operating corner of the handle is fitted with a roller 51.
Patent GB-132797-A (GB)
IPC: B64C35/00
Abstract: 132,797. Caproni, G. Sept. 16, 1918, [Convention date]. Floats for aerial machines; hydroplane vessels. -In a seaplane or similar flying-machine having floats combined with lifting-planes adapted to act upon the water and assist the machine to leave the water, planes 16, 17 are arranged between the central float 13 and side floats 14, 15, and planes 18, 19 are arranged between the side floats and members extending downwards from the main planes. In the form described, there are two series of planes arranged one behind the other. According to the Specification as open to inspection under Sect. 91 (3) (a), the planes 16 - - 19 may be pivotally mounted and adjusted similarly to horizontal rudders. This subject-matter does not appear in the Specification as accepted.
Patent GB-1199910-A (GB)
Title: Process for the Hydrolytic Splitting of Carboxylic Acid Vinyl Esters into Acetaldehyde and Carboxylic Acid
Inventor: SENNEWALD KURT
IPC: C07C45/54
Filed: 1969-03-13
Abstract: 1,199,910. Hydrolysing vinyl carboxylates. KNAPSACK A.G. 13 March, 1969 [30 March, 1968], No. 13326/69. Heading C2C. Vinyl carboxylates are hydrolysed into acetaldehyde and carboxylic acid in the liquid phase at 50-120‹ C. in the presence of a catalyst consisting of an organic sulphonic or phosphonic acid and a mercury salt thereof. Vinyl acetate, propionate, butyrate, isobutyrate, isovalerate and benzoate are specified.
Patent GB-947756-A (GB)
Title: Improvements in or relating to locks for containers
IPC: E05B65/52
Filed: 1962-04-06
Abstract: 947,756. Locks. E. NORRENBERG-SUDHAUS, and W. NORRENBERG-SUDHAUS, [trading as HEINRICH SUDHAUS SOHNE METALLWARENFABRIK]. April 6, 1962 [Oct. 28, 1961], No. 13397/62. Heading E2A. A locking mechanism for a suitcase or the like comprises a first block-shaped member 7 with a tongue 9, a second block-shaped member 1 with a recess 3, and a sliding member 12 carried by the member 1 and having a tongue 48 for bolting the two members 7 and 1 together. The sliding member 12 includes a lock the details of which are shown in the broken away illustrations of Figs. 7 and 8. After the sliding member 12 is slid into a locking position, as shown in Fig. 8, a key 54, Fig. 7, moves a U-shaped spring into a lower position, as shown in Fig. 8, behind a projection 36 from the member 1. The sliding member 12 may be held in a bolted or unbolted position by means of a spring 34 co-acting with a pin 31 on the member 1.
Patent GB-134552-A (GB)
IPC: B22D41/00
Abstract: 134,552. AciÚries Thyssen, Soc. Anon. July 2, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Cleaning.-Scale and the like adhering to furnaces used in steel making, such as hearth furnaces, is removed by melting by means of one or more gaseous or liquid fuel burners to which oxygen is supplied. Fluxes such as fluorspar or salt may be applied.
Patent GB-716742-A (GB)
Title: Improvements in or relating to dry rectifiers
IPC: H01L21/06
Filed: 1952-05-27
Abstract: 716,742. Rectifiers. SIEMENS-SCHUCKERTWERKE AKT.-GES. May 27, 1952, [June 22, 1951.] No. 13456/52. Class 37. A dry rectifier e.g. a selenium rectifier, is coated with a medium which includes a substance which combines with mercury vapour, so as to protect the rectifier when operating in an atmosphere likely to include mercury vapour, the coating forming no part of the mechanical construction of the rectifier. The medium may contain sulphur, carbon iodide or selenium. Specification 670,421 is referred to.
Patent GB-602744-A (GB)
Title: An improved method of and apparatus for singeing fabrics
IPC: D06C9/00
Filed: 1945-05-30
Abstract: 602,744. Finishing fabrics. KEMP MANUFACTURING CO., C. M. May 30, 1945, No. 13528. Convention date, Jan. 26. [Class 42(i)] Fabrics are singed by a burner of the compression flame type by passing them over a burner bed which with the fabric forms a shallow singeing space converging in the direction of travel of the fabric, a flame being projected into the space and being carried along and compressed by the travelling fabric. The burner consists of a sloping bed 1 (Fig. 4) of blocks of refractory material held in position by tongues 2 projecting from the burner portion 3 and hollow member 4, which are clamped together by bolts 5. A completely combustible mixture of air and fuel is admitted through valves 12 and passes through the chamber 8 to the orifices 6 where it is ignited, the flame inpinging on the travelling fabric and being carried along with it, finally escaping through the open sides. Cooling water is circulated through the hollow chambers 15, 16 formed in the members 3 and 4. The chambers 8 are separated by partitions 13 (Fig. 2) and are provided towards the the edges of the fabric, there being a central chamber 7 to which the fuel mixture gains access through orifices 14. Specification 382,019 is referred to.
Patent GB-1412241-A (GB)
Title: Failure detection circuit for anti-skid brake systems
IPC: B60T8/88
Filed: 1974-03-27
Abstract: 1412241 Antiskid braking systems BENDIX CORP 27 March 1974 [13 April 1973] 13572/74 Heading F2F  A failure detection circuit, for an antiskid braking system which includes at least two wheel speed sensors 10, 12 each having a winding for generating a signal, has at least two constant current sources, one associated with each sensor and respectively supplying a constant direct current to its associated sensor, at least first and second resistors, are associated with each current source the current being supplied through a resistor, first means comparing the potential at the end of one resistor with that at the other end of a second resistor for generating a signal if they differ and second means compare potentials at the other ends of the resistors for generating a second signal if they differ, charge storing devices for generating a signal a predetermined time after the first signal and another signal a predetermined time after the second signal. The said later signals cut off the power to the control  system and energize an alarm. The constant current sources are formed respectively by PNP resistor 18, diode 20, resistors 24, 26 and voltage regulator 118 and PNP transistor 28, diode 20, resistors 34, 36 and voltage regulator 118. Amplifiers 44, 62 form comparators. The time delay is provided by resistor 50 and capacitor 52 and the circuit breaker 119 is controlled by a silicon-controlled rectifier 132 triggered by the later signals.
Patent GB-311554-A (GB)
Title: Improvements in extending tables
IPC: A47B1/02
Filed: 1928-05-10
Abstract: 311,554. King, H. T. May 10, 1928. Expanding tables.-An extending table comprises a central removable leaf and end leaves mounted on slide bars; as the end leaves are drawn out, they bear on levers which lift the central leaf. Fig. IV shows a table with two end leaves A, A<1>; as they are drawn out, blocks N, N<1> on their undersides bear on the outer ends of levers G, G<1> hinged to the end rails H, H<1> of the frame, and cause them to lift the central leaf B, which normally rests in recesses in the side rails E of the frame. The leaves A, A<1> are connected by links to a centrally-pivoted lever, so that both leaves move out or in simultaneously, and are mounted on slide bars which move in slots in the end rails H, H<1>; the inner ends of the slide bars are slotted, and move on a central transverse bar D connecting the side rails E.
Patent GB-528479-A (GB)
Title: A process for the manufacture of resinous condensation products
IPC: C08G12/42
Filed: 1939-05-08
Abstract: 528,479. Urea-formaldehyde condensation products. BECK, KOLLER & CO. (ENGLAND), Ltd., (Hodgins, T. S., and Hovey, A. G.). May 8, 1939, Nos. 13736 and 28137. [Class 2 (iii)] Urea-formaldehyde condensation products, suitable for use in preparing coating compositions, are prepared by condensing aqueous formaldehyde with urea in the presence of butanol, undersuperatmospheric pressures reflux, a temperature of 100‹C. and initial pH between 8 and 9, in presence of an alkaline-reacting catalyst, and thereafter further condensing by heating in an acid medium, until the nitrogen content is approximately 18 per cent., at least 2¢ mols. formaldehyde and 3 mols. butanol per mol. urea being employed. In examples : (1) urea 24 gram mols. aqueous formaldehyde, 7.2 gram mols. butanol and 8 gram mols. urea, together with a little ammonia, giving pH between 8 and 9 are heated to 100‹C. in one hour and maintained for about 1 hour under 2 atmospheres pressure ; further butanol, making a total of 24 gram molecules is then added and the reaction completed in an acid medium either under vacuum or atmospheric pressure (2) urea, aqueous formaldehyde and butanol in molecular ratios 1:3:3 are worked up with potassium hydroxide, under reflux, then acidified with phosphoric acid and the reaction completed by distilling off the azeotrope of butanol and water. The products are soluble in alcohols, ketones, aromatic hydrocarbons and tolerate straight-chain aliphatic hydrocarbons, and are compatible with oil modified alkyd resins. Specifications 256,248, 261,029, 309,849, 327,673, [all in Class 2 (iii)], 344,626, 442,054, 484,200, 491,857, 494,700 and 511,087 U.S.A. Specification 2,108,113 and Re-issue 19463, and German Specification 403,645 are referred to.