baber/WOPTO huggingface dataset:
Patent GB-593201-A (GB)
Title: Improvements in or relating to tractor draw gear
IPC: A01B59/042
Filed: 1945-05-11
Abstract: 593,201. Tractor coupling attachments. CLARKE, N. V. May 11, 1945, No. 11906. [Class. 103 (v)] A coupling attachment for tractors comprises. spaced bars 3, 4 attached to the back axle casing and joined at their rear ends by transverse bars 5, 6 perforated along their lengths by holes 7 to which angle brackets 10, 11 or releasable connections are bolted : to 'receive a vertical towing post 8 perforated along its length with holes 9 to receive the trailer coupling. Holes 12, 13 in the lower bracket 11 have a different pitch to the holes 9 in the post 8 'so that the height of the post may be adjusted by the pitch difference by using a single bolt attachment as necessary. The upper bracket 10 may have similar holes or a slot 14 as shown. The post 8 may be lowered on the brackets to project below the axle casing for use as an abutment for a jack or in a modification the lower cross bar 6 may be disposed below the back axle casing and the apertures in the cross bar are used to locate a spigot member fitted to the head of a standard jack. Holes may be made along the bars 3, 4 by means of which the transverse bars 5, 6 may affixed nearer the back axle. The bars 5, 6 may extend beyond the bars 3, 4 or the towing bar 8 or extension pieces may be used, and a sprag may be hinged to the lower bar 6 which is swung into contact with the ground to hold the tractor when its winch is being used. The releasable connections, Fig, 3, comprise plates'22 bifurcated to receive the post 8 and secured thereto by bolts 24, the plates 22 overlapping the bars 5, 6, a single bolt 23 passing through both the plates and bars. The bolt is secured in position by a sleeve 26, locked to the bolt by a pin 25, another hole 26' being made in the bolt so that the sleeve may be lowered when attaching the post 8 to the ends of the spaced bars 3 or 4.
Patent GB-695747-A (GB)
Title: Improvements in or relating to reflectors
IPC: G02B5/124
Filed: 1951-05-22
Abstract: 695,747. Reflex reflectors. GOWSHALL, B. May 22, 1952 [May 22, 1951], No. 11909/51. Class 97 (i). [Also in Group XVIII] A centrally apertured reflector of glass or transparent plastic has a recessed rear face which is provided with a prismatic, lenticular or silvered reflecting surface, a centrally located boss 12 being provided on the rear face which projects from the face a lesser distance than the rear peripheral portion 5 of the reflector. This construction ensures that the reflecting surface is protected from the weather when it is secured to a surface by a screw or rivet through the central aperture. The rear surface may have prismatic reflectors or be silvered or both the front and rear surfaces may be of lenticular formation. The rim 5 may be sealed to the supporting surface by adhesive.
Patent GB-469628-A (GB)
Title: Short-wave television transmitter
IPC: H04B15/00
Filed: 1936-04-27
Abstract: 469,628. Valve amplifying and modulating circuits. RADIOAKT.-GES. D. S. LOEWE. April 27, 1936, No. 11910. Convention date, April 30, 1935. [Class 40 (v)] In a short-wave television transmitter, dynamic earthing of the valve grids or cathode is effected through resonant circuits including an inductance and a capacity in series, the modulating impulses bias, or heating current being applied through a resistance or choke to eliminate high-frequency reaction. In the arrangement shown in Fig. 1, in which the invention is applied to a modulating valve 1, e.g. of the frequency-doubling type described in Specification 435,561, associated with a quartz oscillator or similar exciter 6, the picture and synchronizing signals derived from generators 10, 11 respectively are applied through chokes 18, 19 to the grids 8, 9, which are earthed through two resonant circuits 14, 16 and 15, 17. The condensers 14, 15 are variable so as to permit readjustment when the carrier wave frequency is altered, a grid bias battery 22 preferably maintains the grid 9 at a higher potential than the grid 8, but, in order to permit the employment of a signal of less amplitude from the generator 11, the latter may be connected to an additional grid inserted between the anode and grid 9 and maintained at cathode potential. In a modification, Fig. 2, showing the last valve 23 of a transmitter, the directly heated cathode 25 is earthed through resonant circuits 26, 27, the inductances 26 being divided and the capacities 27 being connected at the point of division, while the cathode 25 and battery 29 are connected to the opposite ends of the inductances.
Patent GB-109261-A (GB)
Title: Link Device.
Inventor: FAIRWEATHER HAROLD GEORGE CRUI
IPC: F16H53/00
Filed: 1917-08-21
Abstract: 109,261. Fairweather, H. G. C., (J÷nk÷pings Mekaniska Werkstads Aktiebolag, Motorfabriken). Aug. 21, 1917. Link-work; joints for link-work.-Relates to a link-work device for transmitting motion between rotary parts, or between rotary and sliding parts, in which the links are jointed to the other parts by curved projections and grooves instead of pivots. In the form shown in Fig. 11, a link with a series of concentric projections on each side engages corresponding grooves in two rocking arms, and in Figs. 13 and 14, a similar link 9 is shown connecting a slide 8 with an oscillating rotary member 10. Figs. 17 and 20 show an arrangement similar to that shown in Figs. 13 and 14, applied to a screw propeller to enable the blades to be set in a forward or reverse postion, or in a neutral position for sailing. A head 13 on an adjusting-rod 12 in the propeller shaft 11 is grooved on each side and connected by grooved links 14 to grooved disks 25 on the pivots of the blades 16. By providing the head 13 with grooves on more than two sides, more than two blades may be controlled.
Patent GB-1458931-A (GB)
Title: Prevention of containers from bursting
IPC: F16K17/16
Filed: 1975-03-21
Abstract: 1458931 Bursting discs SIGRI ELEKTROGRAPHIT GmbH 21 March 1975 [21 March 1974] 12040/75 Heading FID A bursting disc for a pressure vessel comprises a graphite laminate disc formed by compressing expanded graphite laminate particles. As described expanded graphite particles are rolled out on roll stands to form sheets of from 0.2 mm. to 0.5 mm. in thickness. These are stacked in layers and compressed on a die press to form a laminated structure which is subsequently cut into discs.
Patent GB-783998-A (GB)
Title: Improvements in or relating to means for lifting and aerating water
IPC: A01K63/04
Filed: 1955-04-27
Abstract: 783,998. Filters; purifying liquids. SMITH, R. A. G., and HOREMAN, T. J. March 16, 1956 [April 27, 1955], No. 12117/55. Class 46. [Also in Group XXVIII] An apparatus for aerating and filtering water in an aquarium 12 comprises a syphon 13 through which water passes to chamber 10 containing a filtering medium 11, the water flows through conduit 17 and is aerated and raised by air supplied through a diffuser stone 21, supported wholly within chamber 20, to return the water to the aquarium.
Patent GB-623508-A (GB)
Title: Improvements relating to gas-turbine-engines
IPC: F01D9/04
Filed: 1947-05-07
Abstract: 623,508. Gas turbine blading. MORLEY, F. W. W. May 7, 1947, No. 12402. [Class 110(iii)] The nozzle ring and interstage blades are secured at one end without any freedom and at the other end with a radial freedom. Nozzle ring blades 20 have roots 23, below the platforms 21, which are gripped between parts 26 of the stationary structure. Beyond the outer platforms 22 they have spigots 28 which slide in holes 29 in the stationary structure. The intermediate blades have similar spigots 46 and roots 40. The roots 40 are clamped in a diaphragm disc 44. The outer platforms have down-stream extensions 33, 50, which form shrouds for the running blades.
Patent GB-1236222-A (GB)
Title: Improvements in or relating to fluid systems
Inventor: AIREY LESLIE
IPC: F15C1/14
Filed: 1968-03-14
Abstract: 1,236,222. Pure fluid amplifiers. MINISTER OF AVIATION SUPPLY. March 11, 1969 [March 14,1968], No.12418/68. Heading G3H. A proportional amplifier of the kind having a power stream 1 feeding receivers 2, 3 in proportion to the pressure differential of control streams 4, 5; is provided with a further control stream 6 arranged to vary the gain of the amplifier by determining the fraction of stream 1 available for proportioning between the receivers, the flow momentum of the stream 6 being variably controlled as a function of the flow momentum of stream 1. The Specification states that such a system can be used to vary the geometry of an engine air intake (not shown) in response to changes in operating conditions. Figs.4 and 5 (not shown) illustrate honeycombe baffles in the receiver inlets which inlets are shaped to produce a non-linear response to deflections effected by stream 6.
Patent GB-918299-A (GB)
Title: Lance for metal treatment
Inventor: COOK LESLIE
IPC: C21C5/46
Filed: 1960-04-07
Abstract: A gas blowing lance for use in refining iron comprises an iron or steel tube coated, over at least the length to be immersed, with a mixture of powdered and/or granular limestone or dolomitic limestone and inorganic binder, such as ordinary or low-sulphur Portland cement.  The relative proportions of limestone: cement by weight should be between 75:25 and 35:65.  The thickness of the coating may give about 3 inch external diameter to a 1/4 inch- 1/2 inch tube, depending upon the heat resistance and rigidity required, and the amount of impurities which can be absorbed by the slag.  The coating may be moulded around a wire wrapping placed round the tube. Specification 918,298 is referred to.
Patent GB-220694-A (GB)
Title: A new or improved operating device for sliding windows
IPC: E05F11/38
Filed: 1923-05-09
Abstract: 220,694. Creasey, J., and Bunn, C. W. May 9, 1923. Levers and rods, locking. - Sliding windows particularly of vehicles are raised &c. by a pivoted lever 5 which is operated by cords connected thereto and drums rotated by a handle 27 fixed on the squared end of a spindle 18. The handle may be locked in any position as described in Specification 220,855, and shown in Fig. 8; a spring-pressed rod 37 being engaged with a fixed apertured boss 31 by rotation of the handle 35 which has a recessed cam-shaped end 41.
Patent GB-768820-A (GB)
Title: Improvements in or relating to shaft seals
Inventor: WAHL EDWARD CARL
IPC: F16J15/36
Filed: 1955-04-29
Abstract: 768,820. Stuffing-box substitutes. GITS BROS. MFG. CO. April 29, 1955, No. 12449/55. Class 122 (5). A shaft seal comprises a cylindrical housing 1, a sealing ring 13 secured to the shaft 9 so as to rotate therewith, and a pair of opposed non- rotatable annular sealing-rings 16, 17 disposed one on each side of the ring 13 and each having an axially projecting nose 18 in facial sealing contact with the rotatable ring 13 and being carried in a fluid-tight manner at the inner periphery of a flexible diaphragm 19, 20 sealingly secured at its outer periphery to the bore of the housing 1. Each diaphragm has at its inner periphery an axial sleeve 21 bonded to the bore of the sealing ring and expanded therein by a ferrule 23, and at its outer periphery a further axial sleeve 24 which fits the bore of the housing 1 and is pressed thereagainst by a band 25. The rings 16, 17 are prevented from rotating by diametrically opposite lugs 29 thereon engaging corresponding keyways 28 in the housing 1 and are urged towards the ring 13 by springs 30 and 31 respectively compressed between the ferrules 23 and the end walls 32, 33 of the housing which is sealed in the shaft casing 4 by packing-rings 5 and 6. The ring 13 has an external diameter only slightly less than the bore of the housing and is secured to the shaft by being clamped between sleeves 14 and 15 fitting over the shaft.
Patent GB-635970-A (GB)
Title: Improvements in or relating to an arc welding electrode holder
IPC: B23K9/28
Filed: 1946-04-25
Abstract: 635,970. Arc welding electrode holders. WELCH, R. A. April 25, 1946, No. 12476. Convention date, April 30, 1945. [Class 39 (iii)] The holder comprises a conducting head 3 2 within an insulating cap 11 and apertured at 34 t o receive an anvil 38 which is slidable and non-r otatable with respect to the head, and a handle 10 having an aperture for rotatably receiving the anvil and containing a terminal 15 which is drawn to the conducting head by engagement of a screw-thread 35 in the head with an external screwthread 23 on an extension 22 of the terminal 15, so that an electrode is gripped between the anvil 38 and surfaces 36 of the aperture in the head 32. The electrode-engaging surfaces are oblique with respect to the axis of the holder, and an anvilengaging shoulder 44 in the aperture 34 is offset from the shoulder 45 on the opposite wall, so that the anvil contacts the electrode only when the anvil is correctly inserted in the aperture. The handle and cap are of insulating material and have spaced internal and external projecting ribs 29 the bases of which are aligned with one another, and the metal head 32 and terminal 15 have ribs 31 nesting with the ribs on the interior of the cap and handle. The ribs are separated by slots 14 extending through the walls of the cap and handle. Flat sides on a projection of the anvil move between flat sides in the aperture in the metal head 32. The anvil 38 has a cylindrical body held freely rotating in the aperture in the terminal 15 by a tangential pin 41 in the terminal engaging a circumferential groove 42 in the base of the anvil, which rests on a copper washer 43. The cap and handle are held on the head 32 and terminal 15 respectively by spring-pressed pins 26. The inner end 33 of the cap slides over the inner end of the handle. A supply cable 19 is secured by clamping plates 17 and a screw 21 in a recess in the terminal 15. The metal parts are of aluminium alloy. U.S.A. Specification 2,442,029 is referred to.
Patent GB-437211-A (GB)
Title: Improvements in or relating to the sampling of liquors containing suspended solids
IPC: G01N1/10
Filed: 1934-04-25
Abstract: <PICT:0437211/III/1> A device for sampling liquids containing suspended solids comprises a circular vessel U of cross-section which diminishes downwards, a tangential inlet pipe A, an exit pipe E at the bottom of the vessel and preferably a second exit D extending downwardly from the surface of the liquid.  The vessel is covered by a casing M in the bottom of which apertures H are provided for the insertion into the liquid of testing instruments such as a thermometer K, a calomel cell branch N, and an electrode bulb J.
Patent GB-682712-A (GB)
Title: Improvements in turret lathes
IPC: B23B3/16
Filed: 1950-05-19
Abstract: 682,712. Turret lathes. ETABLISSEMENTS A. CAZENEUVE, and BRUET, H. R. May 19, 1950 [May 20, 1949], No. 12549/50. Class 83 (iii). A turret lathe has the turret laterally offset with respect to the centre line of the lathe, that portion of the base on which the turret slide moves also being laterally offset with respect to the centre line, and having its upper face sloping inwardly and longitudinally towards the headstock. A carriage 12 movable along the lathe bed 13 carries a guideway 15, Fig. 3, which is parallel to but offset from the centre line of the lathe away from the operating side. The top face of this guideway slopes inwardly and the guideway carries a turret slide 11. The turret proper 1 is supported on an inclined face at the forward end of the slide 11 and may be adjusted within limits to centralize the tools or the centre carried by the turret, both rotatively and laterally, by means of set screws 20, Fig. 4, which engage pins 21 contacting a boss 19 on the lower part of the turret stem. A centre 2 may be used in the turret so that the latter takes the place of the usual tailstock.
Patent GB-457387-A (GB)
Title: Improvements in or relating to air conditioning thermal systems
IPC: F24F3/04
Filed: 1935-04-26
Abstract: 457,387. Heating or cooling air. CORNELL, E. S., 17, Campbell Lane, Larchmont, New York, U.S.A. April 26, 1935, No. 12573. [Classes 29 and 64 (i)] [See also Groups X and XXVI] Air which has been filtered, and has had its moisture content adjusted, is used under pressure in an air motor 60 to drive a fan 55 which blows the exhaust air from the motor and recirculated air from an inlet 68 through heating or cooling coils 23 into an enclosure 13. When heated air is to be delivered, hot water from a boiler 10 is circulated by a pump 28 through flow and return pipes 20, 27 leading to the coils 23. Alternatively, the coils 23 may be cooled by circulation of water cooled in a tank 33 by ice or other means, the tank being surrounded by insulation 32b. A compressor 50 supplies air under pressure to a drum 75 from which pipes 52, 63 lead to a nozzle 61 directed against the vanes of the air motor 60, a valve 64 operated by a hand lever 64a regulating the air flow. British Specification 403,584, [Group XXVI], and U.S.A. Specifications 1,926,527 and 2,007,036 are referred to.
Patent GB-1080652-A (GB)
Title: Improvements in and relating to commutators
IPC: H01R39/04
Filed: 1965-03-25
Abstract: 1,080,652. Making commutators. ROBERT BOSCH G.m.b.H. March 25, 1965 [April 3, 1964], No. 12599/65. Heading B3A. A commutator is made from a profiled bar, e.g. of copper having thick and thin portions by cutting out notches in the thin portion to form lugs 12, stamping the thick portion of the bar to form segments 13 which are joined together by thin protuberant bridges 13<SP>1</SP>, forming anchoring means 14, moulding and simultaneously anchoring the bar around a hub (not shown) with the anchoring means 14 embedded in the hub and removing the bridges 13<SP>1</SP>, e.g. by turning, to form the commutator, the lugs 12 being bent outwardly to form connection members.
Patent GB-873373-A (GB)
Title: Improvements in or relating to electromagnetic devices
IPC: H01H50/54
Filed: 1958-04-22
Abstract: 873,373. Electromagnetic switches. IGRANIC ELECTRIC CO. Ltd. April 22, 1958 [April 22, 1957], No. 12724/58. Class 38 (5). A single-phase contactor coil and core are embedded in a base with the core ends exposed for co-operation with an armature normally biased away therefrom. The laminated circular-section core 15 and coil 16 are embedded in a base 5 with pole faces 18, 19 exposed in a cavity 20. A T-shaped laminated armature 25 with faces 28, 29 for co-operation with pole faces 18, 19 is biased away therefrom by a spring 35 retained on a projection 36 and between the ends of a conducting member 30 embracing the armature and held by rivets 37 which with the member 30 form a shading coil for the armature. A spring contact bridge 39 is retained by a groove 41 in a gap 38 between the top of the armature and the member 30. The base 5 is provided with projections and recesses (e.g. 55b, 54a, 54b) for location with other contactors held together by a bolt in a coaxial hole 14 to form multiphase or interlocked switching units. As shown in Fig. 9 alternate contactors may be reversed, recesses 56a, 57a being provided to accommodate the heads of screws 52a securing fixed contacts 53. Recesses 12, 13 are provided on the bases 5 to accommodate interlock bars 64 (Fig. 10) between the contactors arranged in back-to-back formation. The bars 64 have projections 65a, 65b, 66a, 66b engaging enlargements 42, 43 of the members 30 of the contactors so that operation of one contactor results in the operation of the adjacent contactor and prevents operation of the back-toback contactors. The core 15 may be U-shaped (Fig. 5, not shown).
Patent GB-1502572-A (GB)
Title: Portable manually-controlled hydraulic pipe-bending apparatus
IPC: B21D7/06
Filed: 1976-03-30
Abstract: 1502572 Hydraulic pipe-bender A CAPO. RUSSO and M CAPORUSSO [trading as OFFICINA MECCANICA FRATELLI CAPORUSSO] 30 March 1976 [3 April 1975 8 Sept 1975 18 Feb 1976] 12802/76 Heading B3E A portable hydraulic pipe-bender comprises a body carrying a pair of abutments, a piston in a cylinder within the body connected to a pipe-bending member movable between the abutments, a manually operable pumping system for transferring fluid from a reservoir in the body to the cylinder, and a manually operable valve for permitting fluid to flow back from the cylinder to the reservoir. Fig. 1 shows a body 11 connected by reck 14<SP>1</SP> to a fork supporting two rotatable abutments (not shown). The pipe-bending member is connected to rod 30 of piston 27. Reciprocation of piston 20 by finger lever 12 and spring 20<SP>1</SP> pumps fluid from reservoir 21 to chamber 26 part one-way valves 23, 24, to effect bending of a pipe. Return of the pipe-bending member is effected by pressing lever 12 beyond its normal stroke to operate head 44 and rods 45<SP>1</SP>, 24<SP>1</SP> to open valves 23, 24 and permit spring 30<SP>1</SP> to return piston 27. Reservoir 21 is sealed by piston 47 and vented by aperture 49. In other embodiments, the return flow passage is distinct from the pumping passage, and contains a distinct one-way valve which is opened to permit the return stroke. In one embodiment, the reservoir is sealed by an elastic membrane. Fig. 5 shows the fork 113, piston rod 130, and pipe-bending member 135 of one embodiment in which the abutments comprises blocks 136, 1361 offering grooves 136<SP>11</SP> and slidable on blocks 140, 140<SP>1</SP> rotatable on pins 137. In another version, each abutment is mounted over its pin by a slot, so as to be slidable over the pin as well as rotatable about it. Rotation of the abutments may be restrained by spring pressed balls seated in the abutments and pressing on the fork.
Patent GB-873374-A (GB)
Title: Improvements relating to electrically propelled vehicles
Inventor: CALVERLEY HENRY BOLTON
IPC: B60L3/10
Filed: 1958-04-22
Abstract: 873,374. Control of several D.C. motors. ENGLISH ELECTRIC CO. Ltd. April 14, 1959 [April 22, 1958], No. 12811/58. Class 38 (3). In a traction system, the voltage applied to the trailing motors is increased relatively to that applied to the leading motors in order to compensate for the effect of weight transfer between the axles. During forward operation of the vehicle, the motors M1, M3 are the leading motors and the motors M2, M4 are the trailing motors, both groups being connected to a bridge rectifier R1-R4 supplied with variable voltage from a tapped transformer 10. The leading motors are connected directly across the D.C. side of the rectifier, whilst the trailing motors are connected additionally to rectifiers 14, 15, in series. The rectifier 14 increases the voltage applied to the motors M2, M4, by a fixed amount, and the rectifier 15 increases it by an amount dependent upon the position of the tap 13. For reverse operation, the auxiliary voltages are introduced into the circuit of the motors M1, M3. In another arrangement, the two groups of motors are connected to separate bridge rectifiers and are supplied from the main tapped transformer through an auxiliary auto transformer. Tappings in the auto transformer are varied in accordance with the direction of the vehicle so as to maintain the required current differential, Fig. 2 (not shown). In a modification of this arrangement, only one tapping is provided for the auto transformer, and contactors are afforded for reversing the ends of the transformer relative to the two rectifier bridges.