baber/WOPTO huggingface dataset:
Patent GB-792815-A (GB)
Title: Improvements in multichannel carrier signal transmission systems
IPC: H04B3/06
Filed: 1955-09-13
Abstract: 792,815. Automatic volume control. WESTERN ELECTRIC CO., Inc. Sept. 13, 1955 [Sept. 16, 1954], No. 26175/55. Class 40 (4). In a multi-channel system comprising a number of spaced repeaters a regulating arrangement comprises a number of networks RN1-RN4, Fig. 4A, in the transmission path, each of which introduces a loss characteristic of a different linearly independent shape, and a control arrangement for continuously adjusting each of the networks so that the loss introduced thereby is a function of the integrated departure from normal of the levels of all the carrier channels at that point, the sum of the losses inserted by all the networks substantially compensating for transmission variations. Linearly independent is used in its mathematical sense and the given examples of such curves include the Legendrian and cosine polynomial series, Fig. 3. The double sideband multiplex signalling system which includes compandors and frequencyfrogging, is of the type described in Specification 707,081, and gain regulation is effected at 100 mile intervals under the control of the energy in the twelve channels. The networks RN1- RN4, based on Legendrian curves B, C; and cosine polynomial curves J, K, respectively, are the minimum for good practical results and are designed according to measured losses. They are of the general type described in Specification 469,067, [Group XL], and are controlled by thermistors CT1-CT4 in accordance with the amplified output from an analogue computer CN, which comprises weighting resistors R1- R48, connected, according to the network characteristic, to the positive or negative pole of rectifiers RE1-RE24 in the output of channel filters F1-F12. An alternative arrangement in which the weighting resistors are connected directly to the filter outputs and the outputs are integrated before rectification, is described with reference to Figs. 5A, 5B (not shown). The Specification includes the mathematics. of design of the networks and the weighting resistors, and Specifications 677,828 and 755,916, [both in Group XL (b)], which describe unbalanced parallel T, constant resistance, all pass networks of the types described with reference to " slope " and " bulge " networks, Figs. 8 and 9 (not shown) are referred to. Networks including pairs of networks RN1, RN2; and RN3, RN4; wherein less loss padding is necessary to maintain isolation than in the tandem arrangement are shown in Figs. 6A and 7A. Specification 725,287 also is referred to.
Patent GB-958999-A (GB)
Title: Improvements in or relating to filters
IPC: B01D35/30
Filed: 1962-07-09
Abstract: 958,999. Filters. O. H. BANKER. July 9, 1962 [Oct. 6, 1961], No. 26176/62. Heading B1D. In a filter comprising a housing, a filter element interposed between inlet and outlet chambers thereof, and a bowl attached to the underside of the housing and enclosing the element, the housing has a portion extending downwardly into the bowl from a shoulder on the housing, and clamping means are provided to hold the rim of the bowl into engagement with the shoulder. Preferably the portion of the housing extending into the bowl has a volume substantially equal to the volume defined by the inlet chambers. In one embodiment, Figs. 1 and 2, a filter comprises a housing 20 having inlet and outlet openings 21, 22 communicating with inlet and outlet chambers 23, 24 respectively. Bowl 25, containing a filter element (see Specification 958,998) is fitted around the outside of housing 20. Lips 28, 29 of bowl 25 are pressed, with gasket 27, against flange 40 by clamps 32 which are pulled upwardly by thumb-screw 37 mounted on pin 35. In a further embodiment, Figs. 3 and 4, housing 79, having chambers 82, 83 communicating with inlet 80 and outlet 81 respectively, is provided with shoulder 86 and gasket 87. Flange 88 of bowl 89 is pressed against shoulder and gasket by hooked ends 110, 111 of U-shaped clamp 112 operated by thumb-screw 113. In both the embodiments, the volume occupied by that part of the housing extending downwardly into the bowl is substantially equal to the volume of the chambers within the housing and thus, when the housing is removed, space is provided in the bowl for the liquid occupying the chambers.
Patent GB-858236-A (GB)
Title: Improvements in or relating to curtain rail gliders
Inventor: SATCHWELL FRANCIS JOHN
IPC: A47H15/04
Filed: 1957-08-20
Abstract: 858,236. Suspending curtains. FRENCH & SONS Ltd., T. Nov. 12, 1958 [Aug. 20, 1957], No. 26214/57. Class 52(5) A moulded glider for a girder-like curtain rail e has a track-engaging part a, an integral tongue f to engage a hook tube, and an extension c engaging the web of the rail to maintain the glider and the curtain heading erect. As shown in Fig. 2 the straight inner side and prolongation of the part a in the longitudinal direction of the rail combines with small clearance between the glider and the rail to minimise tilting of the glider. In the embodiment shown in Fig. 5 provision of an arcuate track-engaging part j and a rib o permit tilting and the slot g extends well below the track-engaging part to accommodate a deep curtain heading.
Patent GB-1209707-A (GB)
Title: Gas apparatus for sensing gas temperature or regulating gas pressure
Inventor: EASTMAN JAMES MIDDLETON
IPC: G01K11/22
Filed: 1968-05-31
Abstract: 1,209,707. Fluid regulation. BENDIX CORP. May 31, 1968 [June 9, 1967], No.26316/68. Heading G3H. [Also in Division G1] A fluid device fed by a high temperature gas source 24 having a pressure of at least twice that of the atmosphere at other ambient exhaust pressure, has a conduit 22 provided with a laminar flow restriction 28 and a sonic flow restriction 30. The pressure differential across restriction 28 is proportional to the gas temperature and this is utilized to provide temperature indications on a differential pressure gauge 32. The pressure at gauge 32 can also be used to regulate the differential pressure. In a modification Fig. 2 (not shown) a second conduit is connected in parallel with conduit 22 and is provided with a subsonic restriction upstream of a sonic restriction, gauge 32 being connected to each conduit between its pair of restrictions. In a further modification Fig. 3 (not shown) a temperature compensating closure member throttles the output from a sonic restriction (45) corresponding to restriction 30. The Specification specifies optimum dimension and explains, in detail, why the differential pressures are proportional to the gas temperature.
Patent GB-975854-A (GB)
Title: Refractory brick unit
IPC: F27D1/08
Filed: 1962-07-09
Abstract: 975,854. Refractory bricks. OSTERREICHISCH - AMERIKANISCHE MAGNESIT A.G. July 9, 1962 [Aug. 24, 1961], No. 26340/62. Heading F4B. A refractory brick unit comprises at least two separately preformed parts of different refractory materials the contacting surfaces of which extend substantially at right angles to the hot end of the unit and a metal covering which covers at least partly-three or more faces of the unit and is connected to the base portion of a hanger tab, the angled portion or portions of which fit into slot-shaped recesses in the colder ends of the preformed parts. A U-shaped metal plate 20<SP>1</SP> is spot-welded to a hanger tab 12<SP>1</SP> incorporating an angled portion 11 which engages the slots in refractory parts 1<SP>1</SP>, 2<SP>1</SP> and 25, these parts being preferably fixed to the plate by an adhesive. The refractory parts are preferably basic or neutral and based on magnesite or chromite. Another embodiment (Fig. 2, not shown) has only two refractory parts. A further embodiment has an expansion insert of flat or corrugated material such as metal, plastic, paper or asbestos arranged between adjacent preformed parts. In some cases, a part of a third refractory material may extend across the cold ends of the other parts.
Patent GB-264160-A (GB)
Abstract: 264,160. Rouet, F. A. D. Jan. 11, 1926, [Convention date]. No Patent granted (Sealing fee not paid]. Mudguards rotating with wheels. - A sidesplash guard consists of a rubber ring B detachably fitted in a groove at the side of the tyretread A, the internal diameter of the ring being preferably less than that of the groove. The guard may be provided with a wire ring or like reinforcement
Patent GB-1085877-A (GB)
Title: Apparatus for wrapping sheet material around a mandrel
IPC: B21C47/06
Filed: 1965-06-22
Abstract: 1,085,877. Winding and reeling. MESTA MACHINE CO. June 22, 1965 [June 30, 1964], No. 26462/65. Heading B3E. A belt wrapper for assisting in the winding of strip material on a mandrel comprises an endless belt carried by guides, e.g. rollers supported on the arms of an H-frame. An endless belt 36 runs over rollers 20, 24, 26, 25 supported on the arms 12, 14, 16, 18 of the H of an H-frame 10 supported at its centre 34, and over a roller 22 carried by an arm 32 pivoted at 30 to the arm 18. A tension roller 48 urged against the belt by an air cylinder 56 maintains tension in the belt constant as strip 44 is wound around a mandrel 42 while the belt urges the strip against the mandrel. The frame 10 and cylinder 56 are carried by a base 62 moved to or from the mandrel 42 by an hydraulic cylinder 66. A second belt wrapper is supported, alongside the first belt wrapper, on the base 62.
Patent GB-173047-A (GB)
Title: Improvements in or relating to gramophone or the like horns
IPC: G10K13/00
Filed: 1920-09-17
Abstract: 173,047. Eccles, J. R., (trading as Gramophone Components). Sept. 17, 1920. S o u n d magnifying and directing appli - ances.-A connecting- member for collapsible horns consists of a tapering tube, adapted to be inserted so that its small end projects from the small end of the horn, and a ring or band attached to the tube for clamping the horn to it. In the construction shown in Fig. 4, the tapering member 6 carries a pivoted arm 8 carrying a strap 10 for gripping the horn to the connecting- member. In the construction shown in Fig. 10, a ring 13 carrying pins working in the slots 14 is adapted to move endways when rotated so as to grip the end of the horn. Two forms of horn are described, both built up of longitudinally hinged panels, and one being also divided longitudinally, the two last panels overlapping and being fixed together with press-buttons.
Patent GB-191175-A (GB)
Title: Improvements in apparatus for transferring heat between air or gases and liquids
IPC: F28F9/013
Filed: 1921-10-11
Abstract: 191,175. Heenan &. Froude, Ltd., and Walker, G. H. Oct. 11, 1921. Tube plates. - The edges of secondary and main tube plates C, A in a heat-exchanger are enclosed by a ring plate E, itself encircled by the main casing.
Patent GB-697469-A (GB)
Title: Improvements in loom weighting motions
Inventor: PROCTOR JAMES MAURICE
IPC: D03D49/20
Filed: 1950-11-03
Abstract: 697,469. Loom let-off motions. WEIGHTLESS MOTION CO., Ltd. Nov. 5, 1951 [Nov. 3, 1950], No. 26834/50. Class 142(ii) In a let-off motion for a loom in which a load supplied by a spring is applied to the warp beam, one end of a chain round a ruffle b of the beam is attached to a hook C connected to an arm A<SP>1</SP> of a bell-crank lever. The other arm A<SP>2</SP> of the lever is forked and slotted at its upper end and receives a horizontal rod D which extends from arm A<SP>2</SP> to a corresponding arm at the other end of the beam. The rod D is threaded at one end and the arms A<SP>2</SP> are urged together by a spring E the tension in which can be adjusted by a nut e<SP>1</SP>. Nut e' is prevented from moving due to vibration of the loom by a sring F and a nut f.
Patent GB-280350-A (GB)
Title: Improvements relating to circuit breakers for use in alternating current electric circuits
IPC: H01H3/30
Filed: 1926-10-27
Abstract: 280,350. Barbour, R. H. Oct. 27, 1926. Sparking-preventing and arc-rupturing devices. - -In switches or circuit-breakers for A.C. circuits in which arcing is reduced by making the speed of separation of the contacts slow so that a zero value of the current occurs before the contacts are far apart, mechanical retarding arrangements are provided for controlling the opening of the contacts. As shown in Fig. 1, the switchoperating shaft a is geared to an escapement wheel m, and pawl n through a ratchet wheel g. The pawl f has an extremity p cooperating with a fixed cam o to ensure that the retarded motion of the contact only takes place during the initial portion of their opening movement, and consequently when a zero point in the current cycle occurs during this retarded motion the contacts are not widely separated and the arc is thus extinguished before it has reached any considerable dimensions the electrodes remaining cool enough to prevent the arc from restarting. After the initial retarded opening movement, the ratchet pawl engages the fixed cam and allows the switch contacts to complete their separation without any retardation. The cam sector o may be adjusted angularly for varying the amount of retarded movement of the switch contact. In closing, the pawl f rides over the ratchet teeth so that the switch contacts are moved together freely. In a further modification described (Fig. 3, not shown) an escapement mechanism is provided for retarding the movement between steps of a drum controller, this retarded movement not only assisting the rapid extinction of the arc in the manner described but also providing the necessary pause between the engagement of successive steps of the controller. As applied to cam-operated contactor switches (Fig. 4) the cam contour is arranged at 3 with a gradual fall so that the initial portion of the separation of the contacts taking place slowly is succeeded by a quick completion of the separation of the contacts u, v when the roller x<2> reaches the steeply sloped portion 2.
Patent GB-536018-A (GB)
Title: Improvements in and relating to hydraulic power transmission systems
IPC: B64C25/22
Filed: 1939-09-29
Abstract: 536,018. Hydraulic power transmission. NASH, A. G. FRAZER-. Sept. 29, 1939, No. 26891. [Class 69 (ii)] In a hydraulic power transmission system such as is used to actuate turrets, gun mountings &c. on aircraft and other vehicles, one relief valve 10 is arranged near the supply pump 1 between the supply line 2 and return line 3, and a second relief valve 9 is arranged near the control valve 4 of the turret 7, the valve 9 being arranged to open at a lower pressure than the valve 10.
Patent GB-1106374-A (GB)
Title: Toolholders for use with detachable inserts
Inventor: REEVE LEONARD
IPC: B23B27/16
Filed: 1964-06-30
Abstract: 1,106,374. Tool - holders. WICKMAN WIMET Ltd. 18 June, 1965 [30 June, 1964; 26 Nov., 1964], Nos. 26907/64 and 48182/64. Heading B3B. A detachable cutting insert 16, Fig. 2, having a hole is clamped in position on a seating of a tool shank 11 by a clamping bar 14 having one end 14a extending from a bore 13 in the seating, the bar being pivotable to cause the insert to be clamped against one or more surfaces fixed relative to the shank, there being provided means for pivoting the clamping bar. The other end 14b of the bar forms a ball- and-socket joint with the closed end of the bore 13 so that the clamping bar is pivotable within the bore by actuation of a screw 21 in a threaded bore 19 at right angles to and intersecting the bore 13 so that on tightening the screw 21 the bar will pivot and clamp one pair of adjacent faces against the wall 12 and a post 18 respectively. In a modification, Fig. 3, the clamping bar 33 is pivotable about a point intermediate its ends. A screw 41 when actuated imparts axial movement to a plunger 45 acting on the clamping bar 33. The bore 39 in which the screw 41 engages may be disposed at any convenient angle to the shank. In a modification, the clamping bar is formed with a surface engaged by a cam, angular movement of the cam causing pivoting of the bar.
Patent GB-1019940-A (GB)
Title: Method of growing an oxide film on the surface of a silicon body
IPC: C23C8/36
Filed: 1963-10-23
Abstract: A silicon oxide film is grown on the surface of a silicon body by exposing the surface inside a discharge apparatus to an oxygen glow discharge supported by an external microwave source.  The silicon body may be merely placed in the oxygen glow discharge or a direct-current potential of not more than 150 volts may be applied across the discharge with the silicon body on the anode. The oxygen pressure may be between 0.01 and 10 millimetres of mercury, and the saturation current density of the glow discharge may be between 0.1 and 100 milliamperes per square centimetre. Quartz discharge tube 1 has an electrode 2 consisting of a hollow cylinder of 0.1 ohm-cm., P-type silicon with a sealed end to provide work surface 4 and is attached to a hollow cylinder of Pyrex glass 6 via graded glass seal 7.  The hollow inside of electrode 2 provides well 10 for temperature measurement and/or for cooling water. The electrode assembly is attached to the discharge tube by flange 8.  Electrode 3, of same size and material as 2, is attached to a hollow cylinder of Pyrex glass 11 at the cylinder's closed end 12, and the cylinder is attached to the discharge tube via graded glass seal 13.  The ends of the two electrodes are 25 cms. apart, and the electrodes are connected to a direct-current source.  The discharge tube is connected at 9 to a vacuum pump and oxygen gas manifold. Oxygen gas is admitted through 9 after evacuation of the discharge tube and a discharge established at a microwave power of e.g. 300 watts, the generator being coupled to the discharge tube by a tapered waveguide 15. The gas may then be pumped out and the discharge re-established a few times to obtain a final, pure oxygen discharge.  The process may be used as a method of passivating the surfaces of silicon diffused-junction devices or other semi-conductor devices having a silicon surface.
Patent GB-842778-A (GB)
Title: Process for the production of polyester films
Inventor: IZARD EMMETTE FARR
IPC: C08L67/00
Filed: 1958-01-30
Abstract: A polyethylene terephthalate film having an as-cast thickness of more than 30 mils. and which is readily quenchable to the amorphous state is made by extruding on to a moving surface to form a film of the desired thickness a molten polyethylene terephthalate which had been made from ethylene glycol and a lower alkyl ester of terephthalic acid using in the ester-interchange stage of the reaction such conditions of time and temperature that sufficient of the ethylene glycol is converted into diethylene glycol to give a final polyester containing 2-5% by weight of diethylene glycol based, on the weight of the ethylene glycol in the polyester.  Ester-interchange may be effected at 150 DEG -250 DEG C. and the subsequent polymerization at 230 DEG -290 DEG C. under a pressure of 0,05-2,5 mm. Hg.  Thereafter the molten polyester may be extruded at 270 DEG -315 DEG C. on to a moving quenching surface, e.g. a drum maintained at 40 DEG -80 DEG C. The resulting amorphous film may be stretched, e.g. by approximately 3X in both directions, to give oriented film 5,0-7,5 mils thick.  In an example esterinterchange is effected between ethylene glycol and dimethyl terephthalate at 230 DEG -240 DEG C. in the presence of lithium hydride and zinc acetate, and the resulting product is continuously polymerised in the apparatus of U.S.A.  Specifications 2,727,822 and 2,758,915 using antimony trioxide as a catalyst.  The molten polymer is extruded at 280 DEG C. through a slot orifice 0,085 inches wide on to the surface of a drum kept at 45 DEG C. to produce an amorphous film 45 mils. thick.
Patent GB-1405514-A (GB)
Title: Centrifugal pump
IPC: F04D29/22
Filed: 1973-06-07
Abstract: 1405514 Centrifugal pumps SWFSPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 7 June 1973 [1 July 1972] 27113/73 Heading F1C A centrifugal pump comprises an impeller 12' secured to a drive-shaft 11', a pump housing 14' sealed in relation to an electric motor 10 by a shaft packing 15 and having an induction chamber 16' and an impeller chamber 13', the pump housing being connected directly to the motor housing, the induction chamber being arranged to one side of the shaft packing and connected, via a circular opening concentric to the shaft, to the impeller chamber, and the impeller having radial blades. A radial inlet 17' and a tangential outlet are provided.
Patent GB-482951-A (GB)
Title: Improvements in or relating to the control of electrical circuits by inertia switches, more particularly for the illumination of signals on vehicles
IPC: H01H29/00
Filed: 1936-10-06
Abstract: 482,951. Mercury switches. SEDGFIELD, H. B. Oct. 6, 1936, No. 27146. [Class 38 (v)] A mercury switch comprises a metal member 3 having a bore 3<1> communicating with a metal end cap 5 clamped by a nut 7 and insulated from member 3 by insulating washers 6, 8. The member 3 is connected by screws 12 to an angle bracket 13 which can be adjustably mounted on a vehicle so that the bore 3<1> is at an angle to the horizontal and a body of mercury 2 remains out of contact with a body of mercury 11 in cap 5. Acceleration of the vehicle on which the switch is mounted causes the mercury 2 to move along the bore 3<1> and unite with mercury 11 to complete a circuit between terminals 9, 10. In a modification, the mercury is confined in a bore in a body of insulating material and moves to bridge a pair of wells of mercury into which dip electrodes.
Patent GB-380611-A (GB)
Title: Improvements in means for producing forward movement particularly for toys, seats and so on
IPC: A63G15/00
Filed: 1931-09-30
Abstract: 380,611. Rocking horses &c. WENDLING, H., 17, Boulevard Chasles, Chartres, Eure-et-Loire, and NICODEME, G., Dampmart, Seine-et-Marne, both in France. Sept. 30, 1931, No. 27216. Convention date, April 7. [Classes 136 (ii) and 136 (iii).] A rocking horse 1, Fig. 1, chair, &c. capable o f forward progression is provided with h rockers 2, and d a crutch member 3 pivoted thereto so that during part of its motion it swings on the crutch member while on further tilting the crutch moves into a new position by means of a spring, by means actuated by the rider or by gravity or by a combination of these. The crutch 3 is provided with a flat sole 8 adapted to bear on the ground during the swinging motion and hold the crutch vertical and motionless. A roller 6 is provided to reduce friction when moving over the ground. Springs 25 may be provided to act as shock-absorbers. The rockers may be of the form shown in Fig. 8 in which the middle parts 18, 18<1> form an arc of a circle of larger radius than the parts 19, 19<1>, and the ends are provided with stops 20, 20<1>. In order to steer the apparatus the sole 8 of the crutch, Fig. 9, is mounted on a vertical axle passing through a plate 22 and provided at its upper part with a lever 23 acted on by cords 24 operated by the rider.
Patent GB-603313-A (GB)
Title: Improvements in and relating to the metallic impregnation of tubular members
IPC: C23C10/10
Filed: 1945-10-18
Abstract: In the process of impregnating simultaneously the inner and outer surfaces of tubular members (e.g. ferrous superheater elements) with chromium, a controllable forced flow of impregnating medium-liquid or gaseous-is maintained through the interior of said tube whilst immersed in said medium.  Control of the flow of liquid medium is by pump or hydrostatic head; in the case of a gas is by blower or fan. The impregnating medium may be chromous or chromic chloride, or a chromium-bearing salt bath.