baber/WOPTO huggingface dataset:
Patent GB-761704-A (GB)
Title: Improvements relating to air heaters
IPC: F23M5/06
Filed: 1954-06-25
Abstract: 761,704. Heating by direct contact with combustion gases. LINDSAY, A. June 21, 1955 [June 25, 1954], No. 18770/54. Class 64(1) An air heater, e.g. for preheating air for a drip-feed oil-fired pottery kiln, comprises an inner chamber 3 surrounded by an outer chamber 4 with an air inlet, a wick burner 10 and air inlet at the bottom of the inner chamber, an outlet 5 through which heated air can pass from the two chambers, and means for closing off the outer chamber from the outlet when desired. These means are a removable annular disc 7 accessible through a hinged door 9 which also serves as a damper.
Patent GB-1464008-A (GB)
Title: Bearing assemblies
IPC: F16C19/34
Filed: 1974-04-30
Abstract: 1464008 Bearings RKS 30 April 1974 [8 June 1973] 18888/74 Heading F2A A double contact, crossed roller or ball bearing assembly comprises raceway supports 7, 8, each having a single groove 9 per row of rolling elements in which is mounted by deformation a single open ring 10, 11 formed from a bearing steel section having two enlarged portions 12 (Fig. 2) joined by a thinner axial rib 13, the two bearing surfaces being machined in the two enlarged portions. The supports 7, 8 are of ordinary steel, light alloy, or plastics. The rings 10, 11 are tempered either on the surface or throughout. The split in each ring lies oblique to its axis, and may contain a lubrication hole.
Patent GB-221197-A (GB)
Title: Improved apparatus for making closed containers of cylindrical hollow metal bodies
IPC: B21D41/04
Filed: 1924-08-11
Abstract: 221,197. Thyssen & Co. Akt.-Ges. Aug. 27, 1923, [Convention date]. Pipe-end closing. - In an apparatus for closing one end of a hollow cylindrical metal body of the type consisting of a pair of swages and a counterbearing for supporting the free end of the cylinder co take up the axial forces produced in the cylinder, the counterbearing is connected with the swages by drawbars so as to avoid fixing it on the ground or in rigid connection with the press and thus avoid the necessity for a reworking due to yielding of the foundation. The counterbearing D is adjustably mounted by a screw E in a truck D<1> or slide, which is fixed by wedges received in notches in a pair of draw bars F engaging at one end the support J and at the other end engaging behind a part B<1> of the lower swage which serves as a guide for the upper swage. In another form, the swages B, Fig. 2, are connected by pivoted draw-bars F either to the truck D<1> or to the counterbearing D, the draw-bars serving to guide the swages.
Patent GB-892497-A (GB)
Title: Hydraulic braking system for motor vehicles
IPC: F16D65/28
Filed: 1959-06-03
Abstract: 892,497. Hydraulic intensifiers. FIAT SpA., and BALDWIN, P. S. June 3, 1959 [April 22, 1959], No. 19020/59. Class 69 (2). [Also in Group XXXIV]  An hydraulic pressure booster interposed between a master cylinder and the wheel brake cylinders, comprises a compound piston 2a, 2b slidable in bores 1a, 1b respectively, of a cylinder 1 closed by plugs 3, 4. A projection 3a of plug 3, against which the piston 2a, 2b is biased by spring 5, forms with the piston a chamber A connected via bores 3b, 3c with the master cylinder, the spring 5 being housed in a chamber B connected with the front and rear wheel brake cylinders via bores 4a, 4b respectively, and with chamber A via bore 10a in disc member 10, on which spring 5 bears, valve member 11, slidable in holder 12 in piston 2a, 2b, bores 11a, passage 15a in a spacer 15, and a groove 3d in the end of projection 3a. The spacer 15 seated in groove 3d, acts on valve member 11 to hold it away from seat 13 against the action of spring 113 when the piston portion 2a abuts projection 3a. A chamber C between the piston portions 2a, 2b and the bore 1a is connected to atmosphere via port 1c closed by a rubber ring 16. On braking, initially fluid flows from the master cylinder to chambers A and B and the brake cylinders past valve member 11, the brake shoes being moved against the drums. When pressure in chamber A exceeds a predetermined valve sufficient to overcome spring 5, the piston 2a, 2b is moved from projection 3a, allowing spring 113 to seat valve member 11. On further pressure rise the piston moves to increase the pressure in chamber B and the brake cylinders. On brake release, pressure in chamber B and the springs return the booster to the shown state. The chamber C may be connected via a valve to the reservoir of the master cylinder, Fig. 3, not shown, the valve restricting flow to the reservoir to delay movement of the compound piston from plug 3, but permits free flow to the chamber, the booster and master cylinder being formed as a single unit. Specification 544,552 is referred to.
Patent GB-221055-A (GB)
Title: Improvements in, or relating to, electric fuse-boards or casings, and to the manufacture thereof
IPC: H02B1/00
Filed: 1923-07-24
Abstract: 221,055. Holmes & James, Ltd., and Sutherland, H. E. July 24, 1923. Fuse-boards. - A fuse-board or casing carrying a number of electric fuses is provided with struts &c. e, Figs. 1 and 4, secured to the back thereof, the extensions e of these struts constituting means by which they may be secured to a wall &c. The contents of the casing, namely the fuse units h may be secured to the struts through the medium of brackets f and screws f<1>. The casing is composed of cast-iron and troughs a between which are positioned sheet metal plates c, c<1>, c<2> or an integral channel member, the whole being held together by rods d and secured to the struts by screws e<2>. The troughs a are rebated to receive the plates c &c., and are closed by removable end plates b which can be drilled for the reception of conduits. A cast lid g for closing the casing has a peripheral groove to take over the edges of the plates c<1>, c<2> and flanges a<2> formed on the troughs a. In a modification shown in Fig. 6, the troughs a are dispensed with, and their equivalents are formed by angle members c<3> secured between the sides by transverse bolts c<4>, brackets c<5> being secured at each side to receive the rods d. Split pins (not shown) may be passed through these brackets to retain the members c<3> from rearward derangement. Specification 221,018 is referred to.
Patent GB-631215-A (GB)
Title: Improvements in or relating to control apparatus for fluorescent lighting
IPC: H05B41/39
Filed: 1947-07-16
Abstract: 631,215. Control systems for space discharge lamps. WATTS, R. G., and DAVIES, H. H. July 16, 1947, No. 19036. Drawings to Specification. [Class 38 (iv)] [Also in Group XXXVII] Switching control.-An apparatus for operating a fluorescent lamp on direct current comprises in combination a ballast resistance, a starting device, and a reversing switch, actuated when lamp current is switched on or off, to reverse the polarity at the lamp terminals on each occasion when the lamp is used. The change-over is preferably effected when the lamp is switched off to avoid interrupting the lamp current at the reversing switch (see Group XXXVII). The lamp may be attached to the casing of the apparatus.
Patent GB-515727-A (GB)
Title: Improvements in or relating to hairdressing chairs
IPC: A47C1/04
Filed: 1938-06-28
Abstract: 515,727. Hairdressing chairs. REASON, A. A. June 28, 1938, No. 19090. [Class 52 (ii)] A hairdressing chair is provided with an upholstered seat frame A which can be extended as shown to serve as a leg rest. The process of extending revolves another frame B, hinged to it at F, to form a seat. A spring-loaded catch D makes contact with a pin E to lock the seat frame B in position.
Patent GB-1128076-A (GB)
Title: Power unit for agricultural tractors, building machines or the like
IPC: F16H47/06
Filed: 1966-05-02
Abstract: 1,128,076. Change speed gear and clutch combinations; reverse gear. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. 2 May, 1966 [5 May, 1965], No. 19265/66. Heading F2D. In a drive arrangement for agricultural tractors or building machines, comprising an engine 100, a hydrodynamic torque converter 103, a Forward/ Reverse gear with Forward and Reverse trains 111, 112 and 113, 115, 114 brought in respectively by engagement of friction clutches 102, 101, a change speed gear 120 and an axle 121 in series, the driven elements of the friction clutches 102, 101 are respectively connected to the Forward and Reverse train input wheels 111, 113 by nested hollow shafts 105, 104, an engine driven input shaft 106 driving the torque converter passes through the latter and the hollow shafts 105, 104, and a double dog clutch sleeve 119 non- rotatably and slidably mounted on the inner hollow shaft 104 is leftwardly and rightwardly shiftable from a neutral position to clutch the shaft 104 respectively to the Reverse train input wheel 113 and the input shaft 106. In the neutral position of the sleeve 119, Forward, through the torque converter, is by engagement of the friction clutch 102. In the leftward position of the sleeve 119, Forward and Reverse, through the torque converter, are by respective engagement of the friction clutches 102, 101 In the rightward position of the sleeve 119'. with the friction clutch 102 engaged, Forward may be through the torque converter, or wholly mechanical with the converter bridged by engagement of the friction clutch 101. The friction clutches 102, 101 may act as disengaging clutches for change speed gear shifts. The input shaft 106 is connectible to a powertake-off shaft 107 through a friction clutch 118.
Patent GB-880580-A (GB)
Title: Hydrous aluminas and aluminas produced by electrolysis
Inventor: BONATH KLAUS
IPC: C01F7/42
Filed: 1959-06-05
Abstract: 880,580. Making pure alumina electrolytically. SPENCE & SONS Ltd., PETER. May 24, 1960 [June 5, 1959], No. 19268/59. Class 41. Pure alumina or hydrated alumina is made by electrolysing a solution of an organic acid or a salt thereof, using pure aluminium as one or both electrodes. As organic acid formic, acetic or oxalic acid is used, and as the saltforming base ammonia, aluminium, quaternary bases, or amines. The pure aluminium used as electrode is pre-treated with alkali, acid or abrasives. In examples, the electrolyte consists of ammonium acetate, or formic acid and piperidine or n-butylamine, using as electrodes aluminium and platinum, or both aluminium. In the presence of organic bases bayerite is formed. The aluminium anode is preferably surrounded by a porous pot to avoid contamination with particles of metal. By maintaining temperature above 72 C., boehmite is formed. The precipitated alumina is then separated, washed and dried.
Patent GB-121793-A (GB)
Title: Hacksaw and Broaching Machine.
Inventor: EMBREE HERBERT
IPC: B23Q1/68
Filed: 1917-12-31
Abstract: 121,793. Embree, H. Dec. 31, 1917. Reciprocating - saw machines. - In a machine for sawing or broaching metal, and stated to be applicable for keyseating, dovetailing, gear-cutting, and similar operations, the tool 6 is held in a vertical frame 5 reciprocated bv a crank 15, and a slidable work-table 17 is fed intermittingly by a cam 13 and a spring 47 so that the work is fed resiliently by the spring during the cutting stroke and the pressure on the work is relieved during the idle stroke. The table 17 is provided with a rack 18 in gear with a pinion 19 on a shaft 20 upon which a hub 24 is secured. A collar 25 adapted to be rocked upon the hub by the spring 47 and the cam 13 is provided with a wedging-roller 28 which causes intermittent rotation of the hub. A similar roller 36 turns a ring 31 until this is arrested by a fixed pin, not shown on block, which engages in a slot in the ring, whereby a standard rate of feed is determined. If a slower feed is required, a threaded rod 54 is adjusted by a handle 53 to act as a stop to the train of levers. The rollers 28, 36 are carried by disks 26, 32 which are provided with handles 32 whereby the work may be withdrawn from the tool if necessary during its cutting stroke. The feed tension is adjustable by a drum 48 and a handle 50. Interchangeable blocks are positioned in the table 17 which are provided with slots wherein the tool reciprocates, the slots being of widths to accommodate different tools. A fixed bracket H carries an adjustable stop 57 for the table 17.
Patent GB-749179-A (GB)
Title: Improved device for fastening blade rings to radial flow steam or gas turbine discs
Inventor: LJUNGBERG KLAS WILHELM
IPC: F01D5/04
Filed: 1954-07-01
Abstract: 749,179. Radial flow steam and gas turbines. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. July 1, 1954, No. 19312/54. Class 110(3) In a radial flow steam or gas turbine, a row of blades 1 is mounted in a pair of strengthening rings 2, one of which is formed with an extension in the shape of a flexible ring 3 connected at its free end to the turbine disc 4, the ring 3 engaging a groove 5 in the disc and being locked to the disc. The flexible ring 3 is formed with an annular flange 10 extending in a plane parallel to the turbine disc 4 adjacent thereto, the annular flange being provided with apertures or recesses in which separate pins 8 engage, the pins also engaging bores 9 in the turbine disc. The pins 8 are formed with flanges 11 which are located in the narrow space between the turbine disc and the annular flange for preventing axial movement of the pins. In Figs. 1 and 2, the pins 8 are cylindrical and the flange 10 is notched at 12 so as to reduce the stiffness of the flexible ring 3. The ring 3 is secured against axial movement by a coupling wire 6. In a second embodiment, the flange 10 is formed with U-shaped recesses the heads of the pins 8 being of corresponding shape. In Fig. 5, the flange 10 extends between the ring 3 and the portion thereof in engagement with the turbine disc 4, the pins 8 being similar to that shown in Fig. 1. In a further embodiment, the flanges 10 of a pair of adjacent blade rows similar to that shown in Fig. 5, project towards each other and the two blade rows are locked against axial movement by a single ring bolted to the turbine disc, the ring engaging the pair of flanges 10.
Patent GB-423929-A (GB)
Title: Improvements in and relating to reciprocating ram pumps
IPC: F04B49/12
Filed: 1933-07-07
Abstract: 423,929. Driving shafts. TOWLER, F. H., Sunnyside Farm, Norwood Bottom, near Otley, Yorkshire. July 7, 1933, Nos. 19342 and 31912. [Class 80 (ii)] [See also Group XXVIII] In a shaft for driv ing a three - cylinder pump, having three eccentrics 16, 17, 18 the eccentric 18 is of reduced diameter, to permit positioning the ball-bearing 19 on the eccentric 16. A bush 20 and ball bearing 19<a> are afterwards positioned on the eccentric 18. Specification 392,992, [Group XXVIII], is referred to.
Patent GB-505466-A (GB)
Title: Improvements in railroad crossing
IPC: E01B7/30
Filed: 1938-06-29
Abstract: 505,466. Railway crossings. ALEXANDER, L. June 29, 1938, No. 19346. [Class 104 (i)] A railway crossing is formed of two similar castings united at the lines a and forming two intersecting tracks, one providing a continuous track 12, 22, 11 for fast traffic, the other for slow traffic having spring-controlled reciprocable rails 16, 17 adapted to be moved by the wheel flanges towards the centre of the crossing and carrying lateral extensions 22 co-operating with extensions on the rails 11 to provide continuity on the first track.
Patent GB-625736-A (GB)
Title: Improvements in means for automatically regulating the terminal voltage of a load
IPC: H05G1/32
Filed: 1946-06-28
Abstract: 625,736. Automatic voltage regulation. PHILIPS LAMPS, Ltd. June 28, 1946, Nos. 19421 and 19422. Convention dates, Nov. 15, 1941, and March 25, 1942. [Class 38 (iv)] A fluctuating D.C. voltage across a load device, such as an X-ray tube, is regulated by a system comprising a vacuum triode on the positive side of the load and in series therewith, the grid of the triode being 'controlled by a negative voltage component dependent on the voltage being regulated, and a constant positive component derived from a resistance connected in series with a modulating device such as a saturated diode or a pentode in a circuit fed from the supply, the resistance being connected to the negative side of the modulating device. Fig. 1 shows an X-ray tube 7 in series with a control triode 6 and another triode 8 in a circuit fed through rectifiers 3, 4 and condensers 1, 2 associated in Greinacher connection, the grid of triode 8 providing switching control for the X-rav tube. A saturated diode 9 is connected in series with a resistance 10 across the system, preferably with a condenser 11 shunted across the resistance 10, the positive side of the resistance being connected to the grid of the triode 6. In addition to providing a switching control, the triode 8 also functions to maintain a high potential between the cathode of the X-ray tube and the negative terminal of the supply system. A voltmeter 12 calibrated in kilovolts may be connected in the system, with one side earthed. In a modification, Fig. 2, adapted for radiography on a continuous film, the system is supplied with pulsating direct current from a source 20, and a pentode 13 is arranged as a modulator with its anode connected between the cathode of the triode 6 and the X-ray tube 7, and its cathode connected to the negative line over a resistance 10. The screen grid 17 is maintained at a positive potential by an auxiliary D.C. source 14 associated with potentiometers 15, 16. The conductivity of the pentode is controlled by varying the potential of the control grid 18 by a switch 19 which rotates synchronously with an A.C. supply from which the pulsating D.C. feeding the system is derived, whereby the grid voltage alternates between that of two points of high and low potential on potentiometer 16. A tapping 21 on resistance 10 is connected to a tapping on potentiometer 15 to provide compensation for differences between different tubes and for variation of resistance 10 due to temperature changes. In a further modification, Fig. 4 (not shown), the positive component of the control grid voltage of the pentode 13 is derived from a dry plate rectifier associated with smoothing condensers and chokes in the secondary circuit of a transformer which is supplied from a separate A.C. source, while the negative component is derived from a tapping on the resistance 10. The primary winding of the transformer is fed from a tapped auto-transformer connected across the A.C. source. Specifications 502,000, 516,047 and 523,144 are referred to.
Patent GB-897715-A (GB)
Title: Improvements in joining member for providing a flexible connection between two relatively movable members
IPC: F16F1/42
Filed: 1960-06-01
Abstract: 897,715. Stuffing-box substitutes. GENERAL ELECTRIC CO. June 1, 1960 [June 24, 1959], No. 19453/60. Class 122 (5). A flexible sealing member 24 for use in sealing the joint between two relatively-movable parts is formed with two end sections 31, 32, Fig. 2, for connection to the said parts and a continuous intermediate section 34 constituted by a surface generated by movement in a predetermined path of a line whose angle relatively to a plane in which the path extends is continually changing as it moves in the path so that the slopes of adjacent portions of the continuous section taken in the direction of the generating line are different. As shown, the surface 34 is generated by a line which oscillates up and down about an interior point 36a, Fig. 3, as it rotates around the axis A of the member 24 and so forms two sizes of bulges 35, 36. The generating line when projected may or may not pass through the axes A or it may pass through an axis which is located at different points as different parts of the surface 34 are formed. The position of the point 36a may also be varied both radially and in different planes as the generating line is rotated. As shown in Fig. 1, the end sections 31, 32 are respectively connected to the tub 3 and transmission casing 16 of a washing-machine, the transmission being arranged to drive a clothes basket 2 and agitator 7. If desired, one or both of the end sections may be closed.
Patent GB-351250-A (GB)
Title: Improvements in or relating to containers or tanks
IPC: B65D81/22
Filed: 1930-06-26
Abstract: 351,250. Containers for dart-boards. HAMMERSLEY, G. P., 23, High Street, Homerton, London. June 26, 1930, No. 19459. [Class 132 (iii).] A container or tank 1 for a dartboard 2 is provided at its upper end with a clip 3 so formed as to hold the board beneath the surface of the liquid in the container or tank. One end 4 of the clip is pivoted to the tank, and the other end 5 is either sprung over the rim of the tank or is secured by a bolt and wing nut pivoted to the rim.
Patent GB-516457-A (GB)
Title: Improvements in and relating to rumbles
IPC: B24B31/02
Filed: 1938-06-30
Abstract: 516,457. Rumbles. LUCAS, A. R. June 30, 1938, No. 19462. [Class 60] A rumble for cleaning castings &c. comprises a barrel a having at each end a runner b supported on rollers c, the barrel being gear driven by a pinion engaging a gear ring on one end of the barrel. A door f is provided carried by hinges h pivoting on a pin j carried by eyes j' on the barrel, bolts k serving to hold the door closed. Water or other liquid is supplied at one end through an inlet n and a rotary coupling and may escape from an outlet in the other end of the barrel, or may leak away round the door; a gutter r is provided below the barrel. Internal, ribs s may be provided in the barrel.
Patent GB-1127389-A (GB)
Title: Clutching device for differential gears of motor vehicles
Filed: 1965-05-03
Abstract: 1,127,389. Differential gear. L. F. SCHMID. 3 May, 1966 [3 May, 1965 (4); 2 Nov., 1965; 18 Feb., 1966], No. 19462/66. Heading F2D. A motor-vehicle limited slip differential of the planetary bevel gear type has one or both output shafts 10, 11 clutched to an input casing 12 by clutch members, connected to the output shafts 10, 11 and formed on or connected to the exterior of the input casing 12, engaged by spring thrust which may be further increased by cammed balls or rollers to resist differential action. As shown, and in Fig. 2 (not shown), a coned clutch member 3, carried by an intermediate member 8 splined at 9 to the input shaft 11, is biased by a plate spring 4 into engagement with a conical clutch surface 2 formed on the crown wheel 7 or an adjacent flange 32 of the housing 12, respectively. In Fig. 3 (not shown), a conical member (27) is supported on the intermediate member (38) by coil springs (39) which bias member (27) into clutching engagement with a corresponding member (34) attached to the housing 12, whilst in Figs. 4 to 6 (not shown), a conical member (24) is similarly supported on a member (20) by springs (19) which urge member (24) into clutching eng gement with a corresponding conical surface on the exterior of the housing 12, the member (24) being, additionally, cammed into engagement by balls (23) arranged in tapered recesses (21, 22) in the members (20 and 24), respectively. In Figs. 7 to 10 (not shown), the conical member (30 or 43) carried by the intermediate member (8), splined to the output shaft, is formed as a dished, or "U"-section, plate-spring serving in itself to effect clutch engagement, the springs being splined to the member (8) by radial fingers (29 or 36) which in the dished spring are reinforced by a bounding polygonal bead (28). In Figs. 11 and 12 (not shown), conical clutch seg nents (47, 48), arranged each end of the housing 12 on intermediate members (49), are spring thrust and cammed radially outwardly into engagement with internal cones (45, 46) formed on the housing 12, whilst in Figs. 16 and 17 (not shown), similar conical segments (55), carried by a flange (69) on the housing 12, are spring thrust and cammed radially inwardly into engagement with a "V"-sectioned intermediate member (64). In Figs. 13 to 15 (not shown), wedge-shaped segments (61), carried by the member (20), are spring thrust and cammed axially into engagement with a "V"-groove in the face of the housing, whilst in Fig. 18 (not shown), a spring- engaged multi-disc clutch (77, 81) is carried between an intermediate member (75) and a flange (78) on the housing.