baber/WOPTO huggingface dataset:
Patent GB-162216-A (GB)
Title: Improvements in grinding and polishing machines
IPC: B24B9/10
Filed: 1920-07-02
Abstract: 162,216. Kliem, E. July 2, 1920. Disc apparatus; bevelling; vacuum chucks and work-holders; driving and feed devices. - A machine especially for bevelling the edges of circular or oval discs of glass, granite, hardwood, &c. comprises an adjustable travelling workholder which is propelled by its own driving-shaft towards the grinding-wheel and is automatically released and returned to the starting-point on completion of the grinding. The machine shown comprises a grindstone i on a headstock h, and a workholder f vertically and angularly adjustable on a pillar e. The headstock h and the base d of the pillar are mounted in guides c on the base b, and are adjusted by screws l, k. The work is placed on a vacuum plate 48 attached to a variable chuck, shown also in Fig. 6, and is rotated by the main shaft 10, which is mounted in bearings z, 1, and is driven by a rope &c. on a pulley x through worm-gearing t and toothed gearing q, p. The bearings z, 1 are parts of the work-holder f, which is mounted in guides m in a frame n pivotally mounted on a collar or sleeve 32 on the pillar e. The work-holder f is advanced by a spindle 6 rotated intermittently by a pin 9 on a wheel 10 engaging with a star-wheel 7 similar to a Maltese cross, the screwed part of the spindle 6 engaging with a half-nut 13, which is normally retracted by a spring 19, but is brought forwards when necessary by a handle 20, and retained in gear by a spring-pressed detent 21, which is removed by a trip lever. The work-holder is moved forwards until the bevelled collar 2 on the spindle 6 engages with the trip lever, when the spring 19 withdraws the half-nut, and the spring 31 retracts the workholder. The chuck consists of a vacuum plate 48 on a spindle 36<a> on a plate 36 which is adjustably attached to a disc-shaped slide 41 on the end of the main shaft o. At the rear of the shoe 41 are arms 44 embracing the diameters of a circular ring 40 on a plate 39 adjustably attached to a plate 37 on the end of the bearing z. If the ring 40 is set concentrically with the shaft o, the vacuum plate rotates so as to grind circular discs; if it is set eccentrically, as shown, the machine grinds elliptical discs. The vacuum plate is connected by a pipe 46 to a pump. The grinding- wheel is reciprocated in its own plane by means of an eccentric 49, which bears against lugs 54 inside the upper part of the headstock h and moves it on the lower part q, which contains the adjusting-screw l. The wheel spindle 35 is pressed forward by a weighted lever 57, a spring 60 tending to retract it. The shaft o is divided within the bearing z, and the parts are connected for example by a spigot and socket joint. A spring 5 enables tho upper end to yield when the grinding-pressure is excessive.
Patent GB-440041-A (GB)
Title: Improvements in or relating to loud-speakers and the like
IPC: H04R7/12
Filed: 1934-06-19
Abstract: 440,041. Loud-speakers. GLEN, R. R., Villa Bergeronnettes, Anglet, Basses-PyrÚnÚes, France. June 19, 1934, No. 18184. [Class 40 (iv)] A loud-speaker comprises a cone 13 driven by a moving coil 11 and a larger cone 18 arranged closely adjacent to the cone 13 and adapted to be driven solely by the vibration and/or compression of the air in the narrow space between the two cones, this space being freely open to the surrounding air. The cone 18, which preferably has a diameter of about three times that of cone 13, is mounted on a ring 19 carried by a spider 20 having a ring 21 engaging the magnet 10 whilst the cone 13 is mounted on a ring 15 connected by arms 16 to a ring 7 also secured to the magnet.
Patent GB-916358-A (GB)
Title: A phenoxyphenoxy-diphenyl, its preparation and use in lubricating compositions and as hydraulic fluid
IPC: C07C43/263
Filed: 1961-05-18
Abstract: The invention comprises o-(m-phenoxyphenoxy)-diphenyl (see Group IV(b)) which is used in lubricating compositions of, e.g. diesters and polyphenyl ethers.ALSO:The invention comprises o-(m-phenoxyphenoxy)diphenyl which is prepared by refluxing a mixture of m-methoxyphenol, an alkali metal hydroxide and a halobenzene in the presence of a copper catalyst to give m-methoxydiphenyl ether which is heated with a mixture of glacial acetic and hydrobromic acids to give m-hydroxydiphenyl ether.  The phenol-ether is reacted with an alkali metal to form the alkali metal salt which is reacted with a 2-halodiphenyl to yield o-(m-phenoxyphenoxy)diphenyl.  The compound is used in lubricating and hydraulic fluid compositions (see Group III).  An example is given.
Patent GB-740646-A (GB)
Title: Improvements in or relating to the separation of suspended materials from gases by electrostatic precipitation
IPC: B03C3/14
Filed: 1953-07-02
Abstract: 740,646. Electrostatic precipitation. RESEARCH CORPORATION. July 2, 1953 [July 16, 1952], No. 18368/53. Drawings to Specification. Class 39 (1). [Also in Group XXVIII] In an electrostatic precipitator the gas stream is passed through a high-voltage electrostatic field and is simultaneously subjected to the action of a high-frequency sonic energy field having a frequency of at least 5 kilocycles, preferably 5 to 50 kilocycles. The sonic energy generator is located at the top of the casing and a liquid pool in the bottom of the casing acts as an acoustic reflector. A liquid spray is provided in the upper part of the casing. The generator may be of the siren or gas-jet type, driven by a portion of the gas stream passed through an auxiliary pump, or a magnetic or piezo-electric vibrator.
Patent GB-944079-A (GB)
Title: Polygonal threaded inserts
IPC: F16B37/12
Filed: 1961-05-19
Abstract: 944,079. Screw-sockets with locking outer thread. R. NEUSCHOTZ. May 19, 1961, No. 18378/61. Heading F2H. In an insert 10 comprising a body with external threads 14 (Figs. 1 and 3) about an axis and internal threads 15, which has the external cross-section, except as interrupted by the threads 14, of a polygon with five to seven sides to form circularly-successive outer surfaces 28a on the threads 14 defining at their junctures radially-outwardly-projecting peaks 30, each such surface 28a lying in a predetermined plane between two peaks 30, the threads 15 being of maximum radial thickness at the peaks 30 and being truncated progressively therebetween by the surfaces 28a first to reduce in thickness and then to increase, the threads 14 and outer surfaces 28a are so related that: R is between 67 and 80% H, where R is one-half of the major diameter of the internal threads, and H is the minimum radial distance from said axis to the planes of the surfaces 28a. The surfaces 28a each lie in a predetermined plane from one peak 30 to the next and the threads 14 have a uniform minor diameter about the body. The polygon is preferably regular and has six sides. Preferably, H is between 86 and 92% of C and/or W is between 15 and 26% of C, where C is the radial distance from said axis to the outermost portions of the peaks 30 and W is the radial wall thickness between the major diameter of the threads 15 and the minor diameter of the threads 14. This last condition may apply to the form covered by the initial statement even when R is not between 67 and 80% of H. In a modified form (Fig. 11) the threads 15c have corner recesses 46 extending radially outward thereinto at locations substantially radially opposite peaks 30c respectively to engage with a non- circular tool. In a further modification the body is twisted about said axis so that peaks of an individual turn of the external threads are offset circularly with respect to the corresponding peaks of adjacent turns.
Patent GB-314668-A (GB)
Title: Improvements relating to guide pulleys and the like
IPC: F16H55/30
Filed: 1928-06-25
Abstract: 314,668. Harcourt, B. W., and Hewitt, J. H. June 25, 1928. Pulleys; chain-wheels.- Guide pulleys, Fig. 7, and chain-wheels, Fig. 2, for use with window sashes, rising and falling doors, 'balance weights, &c., are built up from a plurality of metal discs arranged upon a central bush j or e formed with a shoulder g at one end and pressed up at the other, or pressed up at both ends, to hold the discs in position. The outer discs i, Fig. 7, may be large enough to form guide flanges. All the discs c of the chain-wheel may be toothed, or central or outer discs may have plain peripheries, according to the construction of chain employed therewith. To prevent relative rotation of the bush and discs, either or both may be knurled or serrated.
Patent GB-1508660-A (GB)
Title: Method for producing aluminium relief masters
IPC: G03F7/26
Filed: 1975-05-02
Abstract: 1508660 Holograms; photo-resist materials and processing RCA CORPORATION 2 May 1975 [22 May 19741 18552/75 Headings G2C and G2X [Also in Division B3]  A method of forming a surface relief pattern in [an] aluminium comprises (a) coating a photoresist 16 e.g. Shipley AZ 1350 on an aluminium substrate 12 (b) exposing the photo-resist to a light pattern e.g. using a laser (c) developing the photo-resist to give a surface relief pattern, Fig. 2 (d) transferring the surface relief pattern to the aluminium substrate by progressive removal of the resist and etching of the substrate (e) removing any remaining photo-resist and (f) anodizing the aluminium. The surface relief pattern is transferred to the aluminium substrate by chemical or sputter etching and the aluminium is anodized electro-chemically, thermally or in an oxygen plasma. The light pattern may be a focused image interference pattern i.e. a hologram and the etched aluminium substrate can be used as a  master for duplicating the hologram in a thermoplastic e.g. polyvinyl chloride.
Patent GB-706862-A (GB)
Title: Improvements in or relating to keyboard-controlled electronic musical instruments
IPC: G10H1/32
Filed: 1951-08-07
Abstract: 706,862. Electrophonic musical instruments; accordions. SEYBOLD, R. Aug. 7, 1951 [Aug. 7, 1950], No. 18587/51. Class 88 (2). An accordion keyboard is used to control a monophonic electrical musical instrument. The same keyboard is used to play the accordion and the electrical instrument either together or separately. The accordion may house the complete electrical musical instrument..Alternatively, the oscillator, the loudspeaker, and the tone and intensity controls may be housed in separate containers. Two keyboards carried by frames 1 and 2, Fig. 1, control the high and the low notes. If the accordion houses the whole instrument, and the reeds are not to be used, intensity is controlled by relative movement of the keyboards, the movement being transmitted to rheostat R by a lever 7 and cables 8, 9. If the needs are used, however, intensity is controlled by a thumb lever (not shown) on the keyboard 2. When separate containers are used, a valve oscillator 14 and parts of the amplifier are housed in a box 10, Fig. 3. Stops 16 and pedals 17b control the tone of the instrument which can simulate a violin, saxophone, &c. One pedal 17a is a swell pedal. A second container 19, Fig. 2, houses the loudspeaker 20, the amplifier 21 and the accordion itself when not in use. The electrical instrument may be coupled to the accordion to produce octaves either above or below, Keyboard switches. A spring 25, Fig. 4, carries a pusher rod 27 which engages a notch in the key 23. When the key is depressed, the spring engages a contact 28 and completes a circuit through a tuning resistance 29.
Patent GB-1023682-A (GB)
Title: Heating devices
IPC: F24B1/188
Filed: 1962-05-15
Abstract: 1,023,682. Garment racks. D. C. RICHARDS, and D. P. BAKER. Oct. 9, 1962 [May 15, 1962], No. 18641/62. Heading A4U. [Also in Division F4] A rack of lazy tongs form for articles to be dried is supported above a warm air distributor housing, having its outlet facing upwards, which is supplied with warm air from an air heating system (see Division F4) through a flexible duct.
Patent GB-146838-A (GB)
Title: Improvements in or relating to supporting frames for portable respiratory or breathing apparatus
IPC: A62B9/04
Filed: 1920-07-05
Abstract: 146,838. Drõgerwerk H. & B. Drõger. Feb. 5, 1916, [Convention date]. Respiratory appliances.-The support ing frame for breath. ing-apparatus to be worn on the back comprises two or more rigid parts connected by hinge joints, and in some cases capable also of relative longitudinal movement. In the form shown in Figs. 1 and 3, the frame comprises a back member a hinged at d' to a lower padded member d and fitted with shoulder straps c connected to side members b, which may also be con. pected to the member a by hinges b<1>. The member d carries the oxygen cylinder z, and the lighter remaining portions p of the apparatus are carried on the back member a. The whole frame is lined with fabric s. In the form shown in Fig. 4, two oxygen cylinders are carried on a lower member d hinged to the member a at d<1>, and capable also of longitudinal movement with respect thereto. Fig. 6 shows a further modification, in which the frame is constructed of rigid bars a<1>, d<2>, and in which the rigid cross-piece e of the lower hinged member is secured at its ends to a leather belt (not shown).
Patent GB-225509-A (GB)
Title: Improvements in or relating to low temperature distillation of coal
IPC: C10B49/00
Filed: 1924-08-06
Abstract: 225,509. Kohlenscheidungs-Ges. Nov. 28, 1923, [Convention date]. Hydrocarbons, cracking. - The vapours evolved during low temperature carbonizing processes are heated to about 700‹ C. in order to increase the proportion of light oils obtained on condensation. The treatment may be effected by passing the vapours from a rotary retort a through a vessel d which receives and discharges continuously the coke or semi-coke from the retort a and which is heated by means of flues h or by electrical or other means.
Patent GB-1186261-A (GB)
Title: Mounting Structures for Circuit Packages and Manufacture thereof.
IPC: H01L23/538
Filed: 1967-04-24
Abstract: 1,186,261. Circuit assemblies. TEXAS INSTRUMENTS Inc. 24 April, 1967 [25 April, 1966], No. 18768/67. Heading H1R. In a modular array the integrated circuit chips mounted on a substrate are interconnected by means of a plurality of coaxial transmission lines. An array comprises a plurality of elongated modules disposed in side-by-side coplanar relationship the ends of the modules abutting conduits which carry a cooling fluid. Each module, Figs. 4, 2, comprises an elongated thermally conductive bar 16 on the top surface of which is a strip transmission line sheet 18 having mounted thereon integrated circuit chips 20. In addition to the strip transmission line sheet 18, the body also includes a pair of elongated power buses 30 which are insulated from the heat sink body 16 by insulating envelope 34. Along each edge of the body 16 are inner and outer rows 40, 42 of coaxial transmission lines having their upper ends ground off to expose the ends of the centre conductors, those of cables 42 ground off at a point below the cables 40 so that a resistor board 44 can be affixed to cables 40, each resistor having a resistance matching the characteristic impedance of the transmission lines 40, 42. Any one of the transmission lines 40, 42 may extend from a point on one side of the body 16 to the same side of the body, to the opposite side of the body or from the bottom of the module for connection to a transmission line extending to another module in the array as shown in Fig. 8. As shown in Figs. 2, 4, the central conductors of the transmission lines are selectively connected by wires 52 to any adjacent part of the module, e.g. pads 25, 27 on strip transmission line 18 and chips 20 respectively. The completed substrate 130 for each module, Fig. 8, is made by using a hinged U-shaped cross-section frame for supporting a plurality of wires 114, Fig. 5 (not shown), which frame is folded round the heat sink body 130 provided with a pair of power buses 132, 134, Fig. 6 (not shown), and insulated therefrom. The whole assembly is then electrolessly plated and finally electroplated so that all the insulated conductors 114 will be coated in a metallic envelope to form coaxial transmission lines. The assembly is then potted in plastic 148 and the excess portions ground to expose wires 114, buses 132, 134 and upper surface 152 of the heat sink. The integrated chips 200 may be mounted face downwards on a substrate 210, Fig. 10 and Fig. 11 (not shown), which substrate is provided with a plurality of metalized contact pads 212 which mate with cantilevered ends of strip leads 204 of each chip. The metallized pads 212 may be connected to thin film circuits in layer 214 which form transmission lines. The substrates 210 are finally mounted on the module support top surface as shown in Fig. 2. In an alternative method of mounting the integrated chips, Fig. 11 (not shown), the chips are mounted in cavities in a semi-conductor or ceramic substrate.
Patent GB-379449-A (GB)
Title: Improvements in or relating to corrugated sheeting for roofing and other similar purposes
IPC: E04D3/32
Filed: 1931-06-29
Abstract: 379,449. Corrugated sheeting for roofs &c. HURDEN, E., The Gables, Harefield, HURDEN, A. P., Bodwen, Green Lanes, Northwood, both in Middlesex, and BEESON, S. E., Rosemary, The Cloisters, Rickmansworth, Hertfordshire. June 29, 1931, No. 18799. [Class 20 (iv),] A uniform pitch and level in corrugated sheeting is maintained by reducing the whole length of the lower corrugation adjacent to one edge of the sheet which is to be lapped in height and radius, the lower corrugation starting: from a slightly flattened trough a<1>, so that the rising parts of the corrugations at the joint are definitely parallel. The lower corrugation may extend, as shown at a<2>, beyond the apex b<1> of the adjacent upper corrugation. Specifications 14771/90, [Class 20, Buildings &c.], 202,518 and 268,499, [both in Class 20 (iv), Floors &c.], are referred to.
Patent GB-803658-A (GB)
Title: Improvements in pipe or tube cut-off machines
IPC: B23B5/14
Filed: 1955-10-18
Abstract: 803,658. Pipe-cutting lathes. AETNASTANDARD ENGINEERING CO. Oct. 18, 1955 [May 16, 1955], No. 18818/57. Divided out of 803,657. Drawings to Specification. Class 83 (3). A pipe-cutting machine comprises a cutterhead, a conveyer for moving a pipe or tube and positioning an end thereof within the cutterhead, the latter embodying a main tube-clamp and having a number of cutting-tools, and means for rotating and advancing the tools to sever the pipe or tube, a crop-end clamp being arranged on the opposite side of the tools to the maintube-clamp and adapted to hold the end of the pipe to be severed. The machine is fully described in Specification 803,657.
Patent GB-586862-A (GB)
Title: Improvements in or relating to reciprocating pumps and compressors
IPC: F04B43/067
Filed: 1944-12-03
Abstract: 586,862. Diaphragm pumps and compressors. PUGH, C. A., GURNER. J. R., and PLESSEY CO., Ltd. Dec. 3, 1944. No. 18869. [Classes 8 (i) and 102 (i)] A pump or gas compressor comprises a doubleacting piston 4 actuated by an eccentric 5. Adjacent the ends of the piston, two diaphragms 6 are arranged to be reciprocated by the hydraulic medium in the spaces 9 between the piston and the diaphragms. The spaces 8 form pumping chambers and are fitted with inlet valves 10 and delivery valves 11. The stroke of the diaphragms is limited by perforated guards 7 and each space 9 is fitted with spring-loaded inlet and relief valves to allow liquid to flow to and from the chamber 21 to the spaces 9 after the diaphragms have completed their strokes. The inlet and delivery valves 10, 11 for each pumping space may be arranged concentrically, the delivery valve being in the form of an annular lift valve.
Patent GB-691867-A (GB)
Title: Improvements in machines for moulding plastic substances, for example meals or meal mixtures
IPC: B30B11/22
Filed: 1950-07-29
Abstract: 691,867. Extruding meal pellets &c. SIZER, A. W. Oct. 26, 1951 [July 29, 1950], No. 18987/50. Class 87 (ii). A machine of the type in which a roller 18 extrudes meal &c. in the form of bars through the perforations of a rotatable die plate 14 is characterized by a device for cutting the bars into cakes or pellets, this device comprising a plurality of breaker bars or knives 19 mounted below the die plate within axial slots 20a in a stationary sleeve 20 surrounding the driving shaft 15 for the roller, the knives being adjustably held in the slots by a retaining ring 21 secured to the sleeve. The knives are L-shaped and have a ground cutting edge 19a. The ring 21 is in two halves, and the knives are locked in position by radial screws. The knives may touch the underside of the die plate or be spaced from it. The sleeve 20 has brackets by which it is secured rigidly to the frame of the machine. As shown there are two rollers 18 secured to rotating shaft 15, and the die plate is secured to rotating sleeve 13, the shaft and sleeve being driven in opposite directions by bevel gearing 10, 11.
Patent GB-516546-A (GB)
Title: Improvements in or relating to the production of gas suitable for the manufacture ofmethyl alcohol
IPC: C10J3/00
Filed: 1938-06-28
Abstract: 516,546. Gas producers. DUFFIELD, F. L. June 28, 1938, No. 19167. [Class 55 (i)] A gas containing two parts of hydrogen to one of carbon-monoxide and suitable for the synthesis of methyl alcohol is obtained by passing steam through incandescent carbon to form water gas, additional steam being added to react with the carbon-monoxide to form carbon-dioxide and hydrogen. Half the total air is admitted through a lower inlet 16 of a shaft 1 containing a coke charge, the remainder being applied through tuyeres 18 at different levels to raise the whole column to incandescence. The combustion gases are withdrawn through an upper manifold 22 the air blow being continued for 10 minutes. Steam, after a steam purge, is admitted at the top of the shaft through upper inlets 20, and is continued for a run of 50 minutes, additional steam being added at intermediate inlets 20 to react with the carbon-monoxide, the gas mixture escaping through a lower manifold 24. Specification 516,545 is referred to.