baber/WOPTO huggingface dataset:
Patent GB-358993-A (GB)
Title: Improvements in or relating to the recording and reproducing of sound
IPC: G11B7/00
Filed: 1930-06-06
Abstract: 358,993. Recording sound optically. GRAMOPHONE CO., Ltd., Hayes, Middlesex, CONDLIFFE, G. E., Thorncombe, Fulmer Road, Gerrards Cross, Buckinghamshire, and BROWNE, C. O., 3, Freeland Road, Ealing Common, London.. June 6, 1930, No. 17677. [Class 40 (ii).] Relates to the production of optical sound records of the variable width type, having a minimum of parasitic noise effect and operating by transmission, or reflection of light. To reduce ground noise the sound is recorded so that the crests of the waves of all amplitudes lie on a line of the record carrier which may be a longitudinal line or a line whose departures from a longitudinal line are less than the changes in amplitude of the sound being recorded, the changes in overall opacity of successive transverse strips of the record varying throughout in accordance with changes in the amplitude of the sound. Fig. 3 shows such a record with the crests of the low amplitude sounds recorded in the longitudinal lines containing the crests of greatest amplitude thereby reducing the areas which could produce parasitic noises due to dirt, scratches, &c. This record is produced by a beam directed past a ribbon 4 influenced by sound from a microphone 1, Fig. 1, and through a slit 8 on to a sensitive film 9, the ribbon extending through a magnetic field and being itself supplied with current from a battery 10 which current can be varied, when the connection FG is broken, by movement of a connection T over a resistance 11. Adjustment of the contact T by manual or automatic means when sounds of small amplitude are being recorded varies the central position of the ribbon 4 in relation to the slit 8 whereby the recorded crests of such sounds are displaced towards, or on to, a longitudinal line through the recorded crests of greatest amplitudes. The ribbon 4 may be replaced by two ribbons on a two-limbed ribbon, in which case the mean position of vibration must be controlled so that the slit is substantially completely uncovered once in each complete oscillation. The Provisional Specification describes also the production of constant width records of variable density.
Patent GB-256556-A (GB)
Title: Improvements in and relating to electric cut-outs
IPC: H01H87/00
Filed: 1925-02-03
Abstract: 256,556. Bell, B., and Illingworth, W. H. Feb. 3, 1925. Mercury cut-outs. -In mercury-thread resettable cutouts as described in Specifications 159,917, 172,446 and 189,284 in which a deflector for the ejected mercury or a combined valve and deflector to prevent the return of the mercury is used, the deflector, Figs. 8 and 9, or the valve 3, Fig. 1, is formed with an axial passage communicating with the upper end f<4> of the core casing by the passage 3g and with the atmosphere by the outside orifice 3h. Various forms of combined valve and deflector are described and the invention is embodied in a, complete cut-out as shown in Fig. 1. A description of this complete cut-out appears in Specification 256,282.
Patent GB-403653-A (GB)
Title: Improvements in casement or like fasteners
IPC: E05C17/18
Filed: 1932-06-23
Abstract: 403,653. Stays. APPLEBY, A., and THOMAS, A., Chapel Green Works, Cannon Street, Willenhall. June 23, 1932, No. 17717. [Class 65 (i).] In a casement or like stay, of the type comprising a stay-bar pivotally connected to a fitting on the window and adapted to engage a pin on a fitting on the frame, the stay-bar being adapted to be turned into a plane at right angles to its open position and engaged behind an arm on the pin fitting to hold the window closed, the stay-bar is connected to the window fitting by a pivoted link which has means for engaging behind an arm projecting from a fitting on the window frame to hold the window closed, and the stay-bar can be slidably engaged between lugs on the window-frame fitting so that the connecting link will be held in engagement with the arm on this fitting. In the form shown, the stay-bar 11 is connected to the window fitting 6 by a pivoted link 9, and has holes 12 to engage a pin 3a carried on an arm 3 on the window frame. The link 9 is notched at 13 so that when the window is closed it can be moved to engage the side of the arm 3, the stay-bar being then inserted between lugs 4 on the fitting carrying the arm 3 to hold the window locked. The stay-bar may also, in this position, engage a pin fixed lower down the frame and bent to face the window, the bar being thus secured against accidental swinging out from between the lugs 4.
Patent GB-1504653-A (GB)
Title: Apparatus for inductively heating workpieces
IPC: H05B6/02
Filed: 1976-04-30
Abstract: 1504653 Inductive heating apparatus AEG-ELOTHERM GmbH 30 April 1976 [2 May 1975] 17738/76 Heading H2H Apparatus for inductively heating a workpiece 1, 2 comprises an inductor having two branches 5, 6 of copper conductor laid along the workpiece, the branches being interconnected at one end by a semicircular conductor 7 and the other ends connected to a medium frequency A.C. source 17 by means of a second semicircular conductor 8 and conductors 10, 11, the apparatus further including an auxiliary inductor comprising a copper conductor 20 connected to the junction of conductors 6 and 7, and to a conductor 21, a conductor 22 being connected to the junction of conductors 5 and 7; the conductors 21, 22 being connected to a resonant circuit 23 which includes a variable capacitor 26 and a transformer 25, the resonance being variable by means of the capacitor 26. The heating of the workpiece 1, 2 may thus be variable in different portions thereof.
Patent GB-642026-A (GB)
Title: Improvements relating to milling and like rotary cutting tools of the inserted bladetype
Inventor: GRANTHAM GEORGE ALFRED
IPC: B23C5/24
Filed: 1948-07-02
Abstract: 642,026. Milling-cutters. LLOYD, Ltd., R. July 2, 1948, No. 17830. [Class 83 (iii)] An inserted-blade face or end milling-cutter has blades 3 which are wider at the base than at the top and are held in slots 2 sloping downwards from front to rear of the body 1 by wedges 11 which have flat longitudinal faces 15 engaging inclined outer faces 5 of the blades ; the wedges are fitted in housings 12 and are movable in directions sloping downwards from front to rear of the body by means of screws 17 extending in the same directions as the wedges and, operated from the rear of the tool body. Each slot is offset from the axis of the body and has side walls parallel to a radius of the body and a base at right angles to the walls. Each wedge is part-circular in section and the wedge housing 12 is conical, with its axes parallel to the base of the slot but inclined at the side walls. A wall 13 divides each housing from a recess 14 at the rear end of the body and provides an abutment for the screw 17, which is threaded into the wedge. A screw stop 6 for each blade is inserted from the back into a horizontallydisposed threaded bore 7 of part-circular section and has a conical end engaging a bevel 9 on the blade.
Patent GB-200819-A (GB)
Title: A process for producing a tar and rubber composition for making roads and the like
IPC: C08L95/00
Filed: 1923-07-10
Abstract: 200,819. Theilgaard, A., (Assignee of Aktieselskabet Dansk Afvulkaniseringsfabkrik), July 11, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Plastic compositions containing india-rubber &c. and tar &c. suitable for covering roads are produced by heating together coal- or wood-tar or the like and raw or preferably waste rubber such as tyres. The temperature employed is preferably above the melting point of sulphur.
Patent GB-1474193-A (GB)
Title: Milling machines
IPC: B23Q35/10
Filed: 1975-07-24
Abstract: 1474193 Milking machines E G FELDCAMP 24 July 1975 [24 April 1974] 17856/74 Heading B3K  A milling machine comprises a base having a supporting structure 19 for mounting a milling head 31 thereon for pivotal movement about a horizontal axis 23 means for securing the milling head in one of a plurality of angular positions about the horizontal axis 23 the milling head carrying a milling cutter 34, the axis of rotattion of which intersects the pivot axis at the cutting region of the milling cutter 34. In the embodiment described the milling head 31 is mounted on a front plate 20 which is pivotally secured to a back plate 18 mounted on the structure 19, the back plate 18 has an extended portion on which is mounted a dial gauge and feeler 27, 28. A pair of rotary work tables 11 and 12 mounted on the machine slide 10 for supporting a template and workpiece 16 and 17 respectively, so that movement of the template 16 produces corresponding movement of the workpiece 17. The worktables are also rotatable and are coupled together by way of a chain 15 so as to produce simultaneous rotary motion between the template and workpiece. When it is required to adjust the angle of inclination of the milling cutter 34 the bolts 22 are released and the milling head 31 pivoted about axis 23 through the cutter 34 by relative movement of the parts 18 and 20. Since the axis of pivoting 23 lies through the cutting region of the milling cutter the set relationship between the gauge feeder 28 and the milling cutter remain unaltered thus permitting the milling of angular configurations on the workpiece without changing the set relationship between the feeler and the milling cutter. The means for pivoting the front plate relative to the back is provided by a pivot pin 24, an arcuate rack 25 or by the arcuate slots 21.
Patent GB-562210-A (GB)
Title: Improvements in or relating to sifting and straining apparatus
IPC: B07B1/38
Filed: 1942-12-17
Abstract: 562,210. Utilizing inertia. RUSSELL CONSTRUCTIONS, Ltd., and HURST, J. Dec. 17, 1942, No. 17963. [Class 80 (iv)] [Also in Groups I and II] One or a number of superposed sieves or strainers 21 is mounted on a holder 20, which is suspended from a fixed frame 18 by rubber blocks 22. The holder has depending brackets 25 which support a box 26 inside which rotates an adjustable eccentric weight mounted on a shaft 27, driven through a fiexible coupling 28, 29, 30 from the shaft of a motor 15. The sieves are clamped in position by a spider 32 and screws 33 threaded into sockets 31 on the holder.
Patent GB-161878-A (GB)
Title: Improvements in or relating to dental instruments
IPC: A61C1/18
Filed: 1920-06-30
Abstract: 161,878. K³hn, P. June 30, 1920. Dental and like engines. - A handpiece for holding instruments comprises a socket a, a detachable handle c, and a detachable bracket b. The bracket, which is shaped to the socket a, Fig. 3, has an aperture d through which the handle c is passed before being fixed to the socket, and the bracket at the upper end is formed with a bush e which serves as a bearing for the pinion which drives the tool f. The tool f is held in position in the known manner by a slide h which is provided with a notched end i adapted to engage a groove in the shank of the tool.
Patent GB-495894-A (GB)
Title: Improvements in chains for transmitting both tension and compression
IPC: F16G13/02
Filed: 1937-06-29
Abstract: 495,894. Flexible members adapted to form struts. BOULTON PAUL AIRCRAFT, Ltd., and CLARKE, W. H. V. June 29, 1937, No. 18020. [Class 80 (iii)] In chains of the type in which the links are free to bend only in one direction, rollers are provided mounted on the links of the chain which rollers bear on the concave surface of guide sheaves when such chain is used to transmit compression round a curved path. The chain consists of alternate links such as 1, 2, of which the links 2 fit inside the links 1 and are pivoted thereto by pins 4 passing through holes 3. Edges 5, 6 of adjacent links abut one another to prevent bending in one direction. Each of one kind of link, e.g. 2, carries on pins 8, rollers 7 which project beyond the links and are adapted to engage a guide sheave 14, Fig. 5, when the chain in passing over a pulley 13 transmits a compressive load. The pulley may be a sprocket adapted to mesh with the rollers 7. In a modification, Fig. 9, the chain consists of pairs of plates 9 pivoted by pins 4 to pairs of plates 10. The latter having projections 12 adapted to abut flanges 11 on the plates 9. Rollers 7 of relatively large diameter are mounted on the pins 7 and serve to guide the chain either around a pulley as in Fig. 5, or between two surfaces such as 14, 15, Fig. 11.
Patent GB-112035-A (GB)
Title: Improvements in or relating to Incandescent Gas-burners.
Inventor: MCLACHLAN ROBERT WILLIAM
IPC: F23D14/30
Filed: 1916-12-15
Abstract: 112,035. McLachlan, R. W. Dec 15, 1916. Incandescent gas burners.-Spiral or equivalent tubes through which the gaseous mixture passes are so disposed in a mixing-chamber or in the mantle that a whirling motion is given to the gaseous mixture. In one form, a distributing- cap C fits within a neck A<2> to which the burner mouth is secured, and is provided with circular rows of spiral tubes C' and a straight central tube. The mixing-tube B may be formed with an internal spiral passage, and may consist of a spirally twisted tube of rectangular cross-section.
Patent GB-1380158-A (GB)
Title: Manufacture of magnetic recording media
IPC: G11B5/845
Filed: 1972-04-19
Abstract: 1380158 Magnetic recording media BADISCHE ANILIN- & SODA-FABRIK AG 19 April 1972 [22 April 1971] 18072/72 Heading C3R A non-magnetic base is coated with a viscous liquid magnetic pigment dispersion in a binder solution, the applied magnetic particles are orientated by application of a magnetic field and then dried, the liquid magnetic pigment dispersion having been subjected, immediately prior to the coating step to shear at a shear rate of at least 480 cm./sec. and a shear rate gradient of at least 680 sec.<SP>-1</SP>. The magnetic pigment dispersion may have a viscosity of at least 100 centipoises preferably 100 to 500 centipoises. The binder may be an organic solvent-soluble polyamide, polyurethane or polyester. In examples: (1) iron III oxide, carbon black and stearic acid are suspended in a mixed polyamide, phenol-formaldehyde resin dissolved in a toluene/propanol mixture and subjected to the appropriate shear forces before being coated on a polyester base and (2) a similar dispersion containing soya lecithin in lieu of stearic acid is bound with a polyester/polyurethane resin in tetrahydrofuran and coated on a polyester base.
Patent GB-1038949-A (GB)
Title: Improved dismountable stand
IPC: E04H1/12
Filed: 1965-04-29
Abstract: 1,038,949. Stands. F. R. BONNET and R. G. PALAMINI. April 29, 1965 [April 30, 1964], No. 18102/65. Headings A4H and A4U. A dismountable stand comprises a plurality of units connected at their upper ends in side-by-side relationship, each unit comprising independent front and rear frames 1, 2 respectively interconnected in the assembled condition as shown by removable coupling bars 4 of adjustable length. The rear frame 2 comprises a wheeled support 20 carrying telescopic uprights 23 interconnected at their upper ends by a bar 3 having tubular ends 3a, 3b and by fixed hanger bars 28. The front frame 1 comprises a wheeled support 10 which, in the collapsed condition of the stand (Fig. 2, not shown), receives at respective attachment points 12a, 13a a pair of tubular uprights 12, 13 and which supports an articulated rack assembly of pivotally interconnected rods 17, 17<SP>1</SP>, 18a, 18b, 18c. The rack assembly carries height adjustable feet 19 by means of which the assembled inclination of rods 17, 17<SP>1</SP> and hence the height of parallel, co-operating pairs of article support rods 18a, 18b, 18c may be selectively fixed. The uprights 12, 13 carry locking elements 14, 15 which serve firstly to engage co-operating parts 14<SP>1</SP>, 15<SP>1</SP> on the rack assembly to lock the latter with rods 17, 17<SP>1</SP> in a vertical position in the folded stand condition, and secondly to receive one arm of a forked end 41 of a coupling bar 4 in the assembled condition. Locking devices 12b, 13b at the top of the uprights 12, 13 are engaged either by opposite ends of a cross piece 30 in the collapsed stand condition or, as shown in the erected condition of Fig. 1, to respectively engage the lower end of an upright 13 and one end of a cross piece 30. Adjacent units have their aligned front frame cross pieces 30, 31 connected by a detachable sleeve 32 with their rear cross pieces 3 engaged by respective arms of a forked rear end 42 of a coupling bar 4. The various locking means and length adjustment devices comprise screw clamps or pins engaged in holes.
Patent GB-559674-A (GB)
Title: Improvements relating to braces for personal wear
IPC: A41F3/00
Filed: 1942-12-21
Abstract: 559,674. Braces. GIB SON, J. E. Dec. 21, 1942 No. 18109. [Class 43] [Also in Group XVII] A note case A is secured to the shoulder strap o braces by threading the strap through friction slide B carried by short tabs ( secured to the case. Th notes are conveniently held in a hinged holder D, Fig. 4 inserted in the case.
Patent GB-766694-A (GB)
Title: Improvements in or relating to tractors
Inventor: THOMAS WILLIAM LEWIS
IPC: B62D49/06
Filed: 1954-06-21
Abstract: 766,694. Vehicle body details. LEA, A. E. June 16, 1955 [June 21, 1954], No. 18180/54. Class 108(1). Load-carrying platforms 1 for an agricultural tractor are supported at their rear ends on members 5 releasably inserted in sockets 9 on the gear-box mounting 11, and at their forward ends on members 7 in sockets 8 on brackets 10 secured by the engine front mounting bolts.
Patent GB-737910-A (GB)
Title: Improvements in or relating to relay chains
IPC: H01H47/00
Filed: 1953-06-30
Abstract: 737,910. Exchange systems. LICENTIA PATENT-VERWALTUNGS GES. June 30, 1953 [June 30, 1952; April 20, 1953], No. 18181/53. Addition to 732,354. Class 40 (4). The chain of self-holding relays described in the parent Specification is modified so that the trip winding of each chain relay cannot be energized before the next chain relay pulls up. The chain steps automatically when switch Sch and relay B are operated. Steering relay S1 operates with relays I and J pending operation of M. Relay S1 then falls back, S2 pulls up and II operates in a circuit including the parallel connected trip windings Ia, IVa ... IXa and a resistance W, and it is only when II pulls up that the trip winding Ia operates. At each step, an impulse is reverted to relay J. The chain may lock with two relays operated, if the battery on La is temporarily interrupted. This fault is avoided in the arrangement shown in Fig. 2 in which the trip windings are connected in series and are shortcircuited two at a time by chain relay contacts. When chain relay J operates with S1, the trip winding is short-circuited over a chain of contacts 1, 3 ... 15, 16 ... 2 until II pulls up.
Patent GB-950071-A (GB)
Title: Apparatus for pulsating blast furnace internal pressure
Inventor: TSUJIHATA KEIJI
IPC: C21B7/00
Filed: 1960-05-24
Abstract: The pressure in a blast furnace is raised and dropped to normal periodically by closing and opening the plates 12 of a damper disposed in the downcomer 9, provision being made for the damper plates to remain open when the charging bell is open.  The damper plates are operated by rods 14 driven by reversible motors 15 each under the control of opening and closing switches through an electric circuit in <PICT:0950071/C3/1> which timers are in series with limit switches adjustably fixed to a damper opening indicator (see Division F4).
Patent GB-530461-A (GB)
Title: Improvements in and relating to elastic fluid generators
IPC: F22B3/02
Filed: 1939-06-23
Abstract: 530,461. Elastic fluid generators. BRITISH THOMSON-HOUSTON CO., Ltd. June 23, 1939, Nos. 18393 and 18394. Convention dates, June 25, 1938, and July 26, 1938. [Class 51 (i)] [Also in Group XXVI] An elastic fluid generator such as a mercury vapour boiler comprising vertical tubes 10 lining the walls of a combustion chamber 11 is provided with means for supporting the tubes and holding them against the walls so as to permit the tubes to expand vertically. The upper ends of the tubes are bent inwardly at 12 and continued upwardly in rows 13 to the vapour drum 14. The upper ends of the tubes 10 are welded to plates 29 which are in turn welded to a supporting ring 31 provided with arms 32 welded to plates 36. These plates are supported by springs 42 mounted on rods 41 secured to overhead beams mounted on pillars 39. Lugs 46, Fig. 4, are also welded to the tubes and engage with holes in plates 48 embedded in the wall and welded to rods 50 the upper ends of which are welded to the supporting ring 31. Specification 457,440, [Group XXVI], is referred to.
Patent GB-1431695-A (GB)
Title: Irrigation sprinkler system control employing pilot operated  pressure actuated and sequenced valve assemblies
IPC: F16K31/385
Filed: 1973-04-17
Abstract: 1431695 Valves C L C KAH Jnr 17 April 1973 18422/73 Heading F2V [Also in Divisions G3 and G4] A valve for use in an irrigation sprinkler system has a main valve member 906 operated by the fluid-pressure in chamber 962 acting on a diaphragm 908 and under the control of a pilot valve 922. The pilot valve is operated by a diaphragm 926 via a lost-motion connection 930, 932 which diaphragm is connected to an indexing mechanism comprised by a spring-load bar 956 which is moved by a cam 952 on the reciprocatable rod 928 and engages ratchet teeth 976 on element 960. The latter is spring- loaded to a reset position, co-operates with a spring-loaded pawl and is indexed once for each reciprocable movement of the rod 928. A pin(s) (988) in one or more of a plurality of holes in the element engage a spring-loaded pivoted member 986 in one or more positions of the element 960 to move it out of alignment with the bore in which the rod 928 reciprocates. Three springs 940, 942, 944 sequentially abut the transverse bar 954 on the rod 928 as it moves upwards. The arrangement is such that during normal line pressure the rod is in a position in which spring 940 only is compressed. Rise in line pressure to a first predetermined pressure moves the rod to a position in which spring 942 is compressed and the element 960 is indexed. Rise in line pressure to a second higher predetermined pressure moves the rod to compress spring 944 if the member 986 has been moved out of alignment with the rod, the pilot valve being opened only in this position of the rod. If the line pressure is reduced below normal the bar 956 is moved out of engagement with the element 960 and moves the pawl also out of engagement; the element 960 can thus return under its spring-loading to an initial reset position. A plurality of such valves are incorporated in the system, valves sequentially opening at different index positions.
Patent GB-903657-A (GB)
Title: Fluoaluminates as dielectrics
IPC: H01B3/04
Filed: 1961-05-19
Abstract: Potassium or rubidium tetrafluoaluminate as a solid dielectric may be prepared by evaporating to dryness a solution of alumina and potassium fluoride containing 48% aqueous hydrogen fluoride, then fusing this powder at 650 DEG  C.  After an hour this temperature is rapidly and then gradually reduced for 1 1/2 hours, the melt then containing large transparent crystals of K Al F4. Fusion and cooling are carried out in a dry nitrogen atmosphere. A further cooling process and a method of preparing similar crystals of rubidium tatrafluoaluminate are described. U.S.A. Specifications 1,345,754, 1,952,580, 2,522,713 and 2,675,853 are referred to.
Patent GB-112025-A (GB)
Title: Improvements in Roller-blinds.
Inventor: NEILS PETER JORGENSEN
IPC: E06B9/36
Filed: 1917-12-13
Abstract: 112,025. Jorgensen, N. P., and Bjelke, A. Nov. 14, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Lath blinds.-A roller-blind, particularly for shop windows, is formed of a number of flexible slats pivoted to the roller and to the bottom rod. The linen or other flexible slats 7 are attached at their ends to bars 6, 8, pivoted to the roller 1 and bottom rod 10, and are adjusted to the desired angle by cords 4. These cords connect the ends of tho bars 6 and are passed through holes in a double pulley 2 on to which they are wound when the blind is rolled up. The bottom-rod 10 engages side guides 11.