baber/WOPTO huggingface dataset:
Patent GB-627292-A (GB)
Title: Improvements in or relating to the testing of co-related surfaces of machine parts or components
IPC: B25D5/02
Filed: 1946-02-14
Abstract: 627,292. Gauging alignment of co-related surfaces. JONES (MACHINE TOOLS), Ltd., E. H., and CITNER, H. Feb. 14, 1946, No. 4654. [Class 106 (ii)] Apparatus for testing the relation between co-related surfaces comprises a tracker element and an exploring element so arranged that a gauge connected to the latter indicates variations in the relation of the surfaces. Apparatus for testing the alignment of the bores of crankshaft bearings comprises a mandrel 1 having two blade springs 2 fitted in axial slots 3 with a flat face 4 diametrically opposite and an exploring tip 5, preferably as described in Specification 608,058, connected to an indicator gauge 6. As modified in Fig. 3, for testing the angular relation of a bore in a component to an end face thereof, the apparatus comprises a mandrel 1 with a hardened contact stop 7 and flat blade 8 at an appropriate angle to the line of the stop 7 and tip 5.
Patent GB-476091-A (GB)
Title: Improvements in or relating to motor vehicles having a central longitudinal chassis member
IPC: B60K17/36
Filed: 1937-02-17
Abstract: 476,091. Motor vehicles. TATRAWERKE AUTOMOBILUND WAGGONBAU AKT.-GES. Feb. 17, 1937, No. 4727. Convention date, Feb. 19, 1936. [Classes 79 (ii), 79 (iii), and 79 (iv)] A four-wheeled motor vehicle of the type having a central longitudinal chassis frame member is convertible into a six-wheeled vehicle by means of a unit A adapted to be inserted between the ordinary back-axle unit B and the end 5 of the central chassis frame member to which ordinarily the back axle is directly attached. The unit A comprises a central axle-box and chassis frame section 20, 30, carrying half axles 22 with road wheels 21, springs 23, and, if the wheels 21 are to be driven, a differential 24 with bevel transmission 29 to axle shafts 26, a propeller shaft section 25 passing through the differential &c. to enable the drive to be extended to the rear axle. The unit A may incorporate modified axle constructions or methods of wheel mounting and springing.
Patent GB-778499-A (GB)
Title: Improvements in or relating to a disc brake for metal working presses and similar machines
Inventor: FRIEDMAN ROBERT GEORGE
IPC: F16D55/00
Filed: 1954-02-18
Abstract: 778,499. Disc brakes. NATIONAL MACHINERY CO. Feb. 18, 1954, No. 4775/54. Class 103 (1). In a disc brake for metal working presses and similar machines, a rotatable member having an annular surface overlaps a fixed brake ring and forms a brake surface and comprises means including a stationary resilient metal diaphragm which extends radially inwardly to overlap the opposite annular surface of the rotatable member, means being provided to move the overlapping portion of the diaphram towards and away from the fixed brake ring to frictionally grip and release the rotatable member. In the construction illustrated in which Fig. 2 and Fig. 4 are sections on the planes 2, 2 and 4, 4 of Fig. 1 respectively, the crankshaft 6 of a metal forging press projects from the bed frame of the press 5 and the brake is supported on four spaced lugs 7 carried by the bed frame. Keyed to the crankshaft at 9 is a member 10 which carries a friction disc 13, provided with friction material 34 on its radial surfaces slidable axially to the member 10 on splines 11. The brake actuation mechanism is composed of several ring and spacer elements which are held in intimate contact by the bolts 14 and 16 to form a rigid non-rotatable assembly. Situated adjacent to the lugs 7 is a laminated fixed base ring 17 which has formed in it a totally enclosed annular groove 18 in which a coolant, such as water, may be circulated. Adjacent the base ring are a plurality of intermediate spacers 22. An apertured metal diaphragm 24 is compressed along the outer edge of the annular support ring 23 and the outer spacers 26 which abut against the annular fluid pressure cylinder 25. An annular pressure plate 27 together with an annular ring shoe 29 is clamped against the opposing radial surfaces of the diaphragm 24 along its inner edge and are axially movable due to the inherent axial flexibility of the diaphragm 24 under the influence of the compression springs 32 which cause the ring shoe 29 to frictionally engage the friction disc 13 and retard the shaft 6. A groove 30 is formed in the outer face of the ring shoe 29 to form a fluid passage through which a coolant may be circulated. When brake fluid (preferably air) is admitted into the cylinder 25 via inlet 38 and header 38a, the fluid pressure causes the piston 36 to move axially away from the cylinder which, in turn, through the bolts 39, causes the pressure plate to move in the same direction compressing the brake-applying springs 32 to disengage the ring shoe 29 from the friction disc. In place of a single friction disc 13 a series of rotatable friction discs could be spaced between intermediate non-rotatable rings. Specification 778,500 is referred to.
Patent GB-663661-A (GB)
Title: Improvements in or relating to focusing devices for photographic cameras
IPC: G03B3/00
Filed: 1949-02-22
Abstract: 663,661. Focusing devices. LEITZ, E. Feb. 22, 1949 [Oct. 1, 1948], No. 4797/49. Class 98 (i) A focusing device for photographic cameras which comprise a removable lens system, provided with an adjustable diaphragm, and a camera body, said device comprising means for supporting said lens system and either the camera body, or a viewing box having a focusing screen, in register with the lens system, wherein a setting device is provided which is operatively connected to means for interchanging the camera body and the viewing box, and is arranged for operative engagement with means for adjusting the diaphragm aperture, so that on exchange of the camera body and the viewing box the diaphragm aperture is automatically changed to enable focusing to be performed at a larger aperture than for taking photographs. Preferably the interchanging means comprises a slide 4 on which the camera body 5 and the viewing box 6 are mounted, the slide being arranged behind the lens system 3 in a holder 2 supporting the lens system, and the setting device comprises two abutments 8a, 8b on the slide, the first, the position of which may be adjusted by a slot 10 and screw 11, adjusting the aperture for taking photographs, and the other adjusting the aperture for focusing by engaging an arm 9 controlling the diaphragm.
Patent GB-100480-A (GB)
Title: Improvements in Sectional Boilers.
Inventor: CORMERAIS EMILE
IPC: F24H1/32
Filed: 1916-03-31
Abstract: 100,480. Cormerais, E. May 17, 1915, [Convention date]. Sectional boilers are formed of elements consisting of water-tubes 4 expanded into upper and lower transverse boxes 1, 2. The tubes are contracted at their ends to facilitate their connexion to the boxes. The ends of the tubes forming the sides of the furnace chamber are so reduced in diameter as to form passages 21 for the gases to enter the side heating-flues 22. In a modification, the gases leaving the furnace chamber take a downward course through a rear heating- flue, side flues being dispensed with.
Patent GB-202233-A (GB)
Title: Improvements relating to couplings for railway and like vehicles
IPC: B61G7/10
Filed: 1923-02-19
Abstract: 202,233. Mitchell, J., and Cossey, J. C. G. Feb. 19, 1923. Combined buffer and draw-gear. - Casings secured to the underframe are provided for the draught and buffing springs, and a ferrule inserted in the casings surrounds the draw-bar, the internal cross-section of the ferrule being adapted to prevent the draw-bar from rotating relatively to the ferrule, and a flange on the external surface of the ferrule fitting in a suitably-formed recess in one of the casings prevents relative rotation between the ferrule and the casing. The casings 2, 3 surround the draw and buffing springs 4, 5, and abut the underframe 13. A ferrule 6 fits over, and has an internal section to correspond to the section of, the draw-bar 1, which is circular, with top and bottom flats extending along its length. The ends of the orifice through the ferrule are tapered at 9 to permit rocking movement of the draw-bar, and the external surface of the ferrule is provided with a flange 11 which fits in a corresponding recess in the casing 2 and prevents relative turning movement as well as axial movement between the ferrule and casing.
Patent GB-510367-A (GB)
Title: Improvements in or relating to the production of edible products from gluten-containing flour
IPC: A21D2/02
Filed: 1938-02-16
Abstract: 510,367. Treating flour; food preparations. BAUER, H. F. Feb. 16, 1938, No. 4829. [Class 58] [Also in Group VI] Gluten containing flour is improved by mixing therewith from one to seven per cent. of a flour previously treated with sulphur dioxide, sulphurous acid, sodium bisulphite, sodium metabisulphite, sodium pyrosulphite, sodium hydrosulphite, organic addition compounds of sodium hydrosulphite with aldehydes and ketones or sodium sulphite in an amount not more than the equivalent of one per cent. of sodium sulphite. The mixture of flour and reactant may be heated to remove non'absorbed reactant and also to dextrinise partly the starchy components of the flour. In a modification the flour treated with the sulphite salt is acidified with hydrochloric or like acid the mixture being subsequently heated. The flour initially treated with the reactant may be vegetable flour such as soya bean flour, pea flour or potato flour.
Patent GB-241440-A (GB)
Title: Improvements in concrete posts
IPC: E04H17/20
Filed: 1925-02-23
Abstract: 241,440. Edslev, M. Feb. 23, 1925. Moulds. - A concrete fencing post formed with a railing fillet of softer material and of dovetailed cross-section arranged in a clear space left between the reinforcing bars and wires is cast in a mould consisting of a trough a<1>, Fig. 6, formed at one end with an aperture to admit a bar b' of the same cross-section as the fillet.
Patent GB-1461368-A (GB)
Title: Black dyeing of acid-modified polyester fibre
IPC: C09B44/10
Filed: 1975-02-05
Abstract: 1461368 Dyeing acid modified polyesters SUMITOMO CHEMICAL CO Ltd 5 Feb 1975 [5 Feb 1974] 4970/75 Heading D1B Acid modified polyester fibres are dyed black using a combination of basic dyes comprising (1) at least one yellow or orange dye. (2) at least one red dye, (3) at least one violet to blue dye; (1), (2) and (3) are defined by formulae, and (4) at least one dye of the general formula wherein R<SP>18</SP> and R<SP>19</SP> are C 1 -C 3  alkyl or aralkyl groups optionally substituted by halogen, OH or a cyano group, R<SP>20</SP> is H or amino optionally substituted by alkyl or phenyl, and X<SP>(-)</SP> is an anion. Toning dyes may be present and unions are dyed with reserve of wool, cotton or unmodified polyester.
Patent GB-616286-A (GB)
Title: Improvements in or relating to electrical voltage regulating arrangements
IPC: G05F3/06
Filed: 1946-02-18
Abstract: 616,286. Automatic voltage regulation. FOSTER TRANSFORMERS & SWITCHGEAR, Ltd., and JENNINGS, R. E. Feb. 18, 1946, No. 5047. [Class 38 (iv)] A voltage regulating arrangement comprises a saturated iron core in a parallel resonant circuit with means whereby compensation for the residual change in flux in the saturated iron is effected by means of a varying opposition flux. A transformer core 1 with primary and secondary windings 3, 4 on opposite limbs is associated with an auxiliary core 2 of substantially U-shaped section which is disposed with the ends of its parallel limbs 5, 6 abutting against the part of the main core carrying the secondary winding 4, a small air gap being left between the two cores. Preferably both cores have the same overall width across their aligned limbs. The secondary winding 4 of the main transformer is shunted by a condenser 7, and one lead of the regulated output is taken from the junction of one end of the secondary and one side of the condenser, while the other lead is taken from a tapping on the secondary winding. The primary winding 3 is connected in series with a winding 8 on the intermediate limb of the auxiliary core 1, the directions of these windings being opposed. The circuit values and conditions are such that, with a suitable voltage applied to the primary winding 3 the secondary winding jumps into resonance with the condenser 7 and a high flux density is produced in the central limb provided by the main core 1, this flux being distributed between the other limb of the main core and the auxiliary core 2. The condenser may be in two parts each in series with chokes forming third and fifth harmonic accepter filters. In a further modification the shunt resonant circuit is provided by a condenser connected across the secondary winding of the transformer and the output is taken from another winding on the same core, the arrangement being such that the flux produced in the further winding is substantially equivalent to that produced in the secondary winding.
Patent GB-1160201-A (GB)
Title: Turbine-Driven Character With Variable Area Diffuser
Inventor: WALDMAN DONALD JOHN
IPC: F01D17/14
Filed: 1968-02-01
Abstract: 1,160,201. Centrifugal compressors. CATERPILLAR TRACTOR CO. Feb. 1, 1968, No. 5144/68. Heading F1C. In a turbine-driven charger comprising spaced annular substantially parallel walls defining a diffuser area surrounding the rotor, at least one of the walls is supported for movement towards and away from the other, means mounted in the diffuser area and responsive to velocity of air passing through the diffuser being provided to adjust the position of the movable wall and thereby vary the cross-sectional area of the diffuser. Fig. 1 shows a charger for an I. C. engine, comprising an exhaust-gas turbine 11 driving a centrifugal compressor 12. An annular wall 24 is supported by an annular bellows 28 so as to be movable axially relative to a fixed annular wall 23 to vary the width of the diffuser passage 22. When the speed of the I. C. engine is low and the velocity of air passing through the diffuser passage 22 is consequently low, the resiliency of the bellows 28 tends to hold the wall 24 in a position in which the width of the diffuser passage 22 is a minimum. This prevents compressor surge at low engine speeds. At higher engine speeds the velocity of the air passing around aerofoils 30, Figs. 1, 2 and 3, is high enough to produce a sufficiently low pressure area downstream of each aerofoil to cause withdrawal of air from the interior of the bellows 28 via passages 29. The resultant partial collapse of the bellows 28 causes the wall 24 to recede from the wall 23 to increase the width of the diffuser passage 22.
Patent GB-471058-A (GB)
Title: Improvements relating to closet pans, slop sinks and other receptacles which are discharged by flushing
IPC: E03D11/13
Filed: 1936-02-20
Abstract: 471,058. Sanitary closets. ADAMS, A. H. Feb. 20, 1936, No. 5194. [Class 26] In a closet &c. the usual hollow rim is dispensed with, and the wall of the pan is thickened out at its upper edge to form a wide rim k and the internal upper portion is flushed by jets cl directed in lateral directions from the rear of the pan. The jets c<1> are formed in a passage b which has a downward orifice c and communicates by a downward passage f with a passage g encircling the basin and which is provided with jet-orifices j, h, the latter being disposed opposite the outlet e.
Patent GB-952601-A (GB)
Title: Improvements in gear shaving machines
IPC: B23F19/06
Filed: 1960-02-15
Abstract: 952,601. Gear-finishing. J. A. MILLS. June 23, 1960 [Feb. 15, 1960], No. 5265/60. Heading B3K.  A gear shaving machine comprises a reversible motor 10 by which the in-feed and traverse feed screws 7c, 9 are rotated to move a knee 7a and a table 8, gearing between the motor and in-feed screw to give quick and slow in-feeds, a first electromagnetic clutch 21 energized on closing the motor circuit to transmit the quick in-feed, a second electromagnetic clutch 18 to transmit the relatively slow in-feed, switch operating means 26 rotated in synchronism with the in-feed screw and which has a rotational position corresponding to the in-feed position of the table, a switch operated by the switchoperating means to de-energize the energized clutch and thereby interrupt the in-feed, reversible gearing introduced between the motor and the traverse feed screw, further electromagnetic clutches 35b, 36b controlling the direction of drive transmitted by said gearing, further switch operating means 43 rotated in synchronism with and in a direction corresponding to the traverse of the table and a switch operated by said switch operating means to reverse the energizing of the clutches in the traverse gearing and energize the clutch through which the slow in-feed is transmitted, the construction and arrangement giving a quick initial in-feed and thereafter a relatively slow and short in-feed increment synchronized with the reversal of the traverse of the table. The The switch-operating disc 26 carries dogs 29, 30, 31 and the similar disc 43 carries dogs 45, 45a, 46, 46a. In operation, a switch is closed to start the motor 10. The knee 7a is fed upwardly at a fast rate until a lobe 29a of the dog 29 actuates a switch D to de-energize the clutch 21 and energize the clutch 18. The knee is then fed at a slow rate until the clutch is de-energized by the lobe 29b. The table is meanwhile traversed until dog 45 contacts the switch 47 to reverse the traverse by switching from one clutch 35b to the other 36b and to feed the knee at slow rate until stopped by a dog 30. Further reversal and feed occurs when the dog 45a contacts the switch 47. The dogs 46, 46a act as safety over-travel devices co-operating with a switch 48 to stop the motor. Reversal and infeed continue until an extension 32 on the dog 31 actuates a switch C whereby reciprocation of the table continues without in-feed. When shaving is complete, the fast speed clutch 21 is energized and the table is lowered until a dog 33 actuates a switch A to stop the motor. If the switch C fails to function, the extension 32 contacts another switch B and stops the motor. In a modification, operation of the switch D causes the motor to stop and, after a time delay, to be restarted with the slow-feed clutch engaged. The motor has a tapered rotor so that when the motor is switched off a powerful spring pushes the rotor on to a conical friction brake to ensure a quick response to the motor-stopping switches. The means for traversing the table may be as in Specification 943,478.
Patent GB-851069-A (GB)
Title: Improvements in or relating to accumulator batteries
IPC: H01M50/103
Filed: 1958-02-18
Abstract: 851,069. Batteries. HOUILLERES DU BASSIN DU NORD ET DU PAS-DE-CALAIS. Feb. 18, 1958 [Feb. 28, 1957], No. 5308/58. Class 53 The terminal posts 10, 11 of an accumulator project through the bottom of the case the upper end of which is provided with a gas exit 3. To prevent the propagation of flame the terminals and connecting straps are embedded in bitumen, quartz grains, plastic material &c., 17, contained in an outer casing 16, Fig. 2, which is provided with openings 19 in the cover for the egress of gas.
Patent GB-1035920-A (GB)
Title: Improvements in or relating to the manufacture of high impact compositions of vinyl-aromatic polymers
IPC: C08F279/02
Filed: 1965-02-08
Abstract: High impact polymers are made by dissolving 1 to 30 parts by weight of a synthetic rubber in 99 to 70 parts by weight of a vinyl aromatic monomer in the presence of, as an agent for reducing the viscosity of the solution, 0.005 to 1% by weight of the monomer of an alkylphenoxy polyethoxyethanol of the formula <FORM:1035920/C3/1> wherein x is an integer from 3 to 30 and R is a C4-C18 alkyl group, and then subjecting the solution to polymerizing conditions.  Synthetic rubbers specified are polybutadiene, polyisoprene, styrene-butadiene copolymers and block copolymers of polystyrene and polybutadiene or polyisoprene. The example describes incorporating octyl phenoxy decaethoxyethanol and tris(nonylphenyl)phosphite in a latex of a styrene-butadiene copolymer, coagulating the latex, forming a 7% solution of the dried coagulate in styrene, and polymerizing the solution by heating.
Patent GB-470712-A (GB)
Title: Improvements in and relating to sliding windows or doors
IPC: E06B3/46
Filed: 1936-02-24
Abstract: 470,712. Sliding doors or windows. ROSKILLY, W. J. Feb. 24, 1936, No. 5482. [Class 20 (iii)] Sliding doors or windows of the kind which lie in the same plane when closed, one being movable into a parallel track 4 by branch tracks 7 or 8 for opening are provided with a spring-pressed fillet 11 which engages the doors when closed, Fig. 7, and is moved transversely against the spring 9 when opening a door. The fillet 11 may have a spring 18a, Fig. 10, fixed by a depending lug and screws 19 to the grooved rail and extending across it or the fillet may be hinged to the grooved rail at 17, Fig. 9, and rotated by a spring into the position of engagement with the closed doors. The face 16a of the hinged fillet is arc-shaped. The doors may be mounted on ball castors 6 or cylindrical studs engaging the grooved rails.
Patent GB-853214-A (GB)
Title: Improvements in or relating to endless chain conveyors
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B65G17/20
Filed: 1958-02-20
Abstract: 853,214. Endless chain conveyers. FISHER & LUDLOW Ltd. Feb. 3, 1959 [Feb. 20, 1958], No. 5504/58. Class 78 (1). In an endless chain conveyer for conveying goods of the kind wherein the conveyer chain is provided with load-supporting rollers 16 by which it is supported from a track composed of two track portions 11 which extend on opposite sides of the conveyer chain and in which parts 21 of the track portions extend below the level of the conveyer chain and are spaced transversely apart to provide therebetween an opening for the passage of supporting means for goods in the form of two spaced-apart dependent plates 23, each dependent plate adjacent opposite ends only of its upper edges is bent outwardly at 27 for connection directly to a pair of links 20 of the chains, this connection being effected by bolts passing through mating apertures 26 in the plate 23 and in the links 20, and spacers 28. A pin 30 is secured between the lower ends of the plate 23 to receive a loadcarrying hook 31. Specifications 639,244 and 723,734 are referred to.
Patent GB-1093622-A (GB)
Title: Improvements in and relating to methods of detecting signal radiation
IPC: H01L31/06
Filed: 1965-02-09
Abstract: A detector for long wavelength radiation comprises a PN junction in a semi-conductor body in which minority carries generated by radiation of a shorter wavelength can have their lifeline reduced by said long wavelength radiation associated with a source or the shorter wavelength radiation.  Preferably the minority carries are generated in the P-type material which includes accepted levels which are filled in response to the longer wavelength radiation. In a preferred arrangement the body consists of copper doped P-type gallium phosphide with a PN junction forming contact of tin and ohmic contact of gold-zinc alloy alloyed to it side-by-side.  The doping is chosen so that the Fermi level lies below the copper acceptor levels. The radiation source is identical except that the P-type body is doped with zinc instead of copper and is included in the same housing which has an aperture to admit infra-red radiation.  As an alternative the radiation sensitive body consists of a layer of oxygen doped N-type gallium phosphide epitaxially deposited on a copper-doped P-type body and the radiation source comprises a junction formed by diffusig zinc into N'type gallium phosphide. It is also possible to form the sensitive junction and radiation source in a single body by diffusing copper and zinc respectively into opposite faces of an N-type oxygen doped gallium phosphide body.