baber/WOPTO huggingface dataset:
Patent GB-629500-A (GB)
Title: Improvements in cams for operating valves of internal combustion engines
IPC: F01L1/08
Filed: 1947-11-08
Abstract: 629,500. Valve-gear. AUSTIN MOTOR CO., Ltd., BISHOP, J. L. H., and WEAVING, J. H. Nov. 8, 1947, No. 29775. [Class 7 (vi)] A valve-operating cam having an effective lifting portion DE is designed with an opening ramp CD, in which tappet clearance is taken up, consisting of a small accelerating portion OG on the lift curve, Fig. 5, followed by a portion GH obtained by plotting a sine curve on a sloping straight line. The ramp ends with a constant velocity portion HJ during which the valve begins to lift. The effect of the design is that at the end of the ramp the velocity of lift is kept very small. The cam is provided with a similar closing ramp EF. In Fig. 8 a valve P is operated by the cam through a tappet comprising telescoping parts N, R, urged apart by a spring S.
Patent GB-226529-A (GB)
Title: Improvements in and relating to edge trimming and moulding machines for planks and laths
IPC: B27C1/12
Filed: 1924-12-11
Abstract: 226,529. Naamlooze Vennootschap A. I. van den Bergh's Emballage Fabrieken, (Assignees of Brouwer, J.). Dec. 18, 1923, [Convention date]. Planing and moulding.- In an arrangement for trimming or moulding the edges of a plank immediately after it has been sawn off, the plank 5 after passing the usual riving knife 7 passes between fences 8, 9 and corresponding pressure members, comprising a spring mounted roller 14 and a flat spring 27. These members together with the fence 9 are mounted on a slide 10 vertically adjustable by means of a screw 17. The slide also carries spring-mounted pressure rollers 12, 13, and an edge trimming or moulding cutter 1. A similar cutter 22 is mounted below the plank in an adjustable slide 21 carrying supporting rollers 24. The main part of the timber travels outside the fences 8, 9 on ordinary bearing rollers (not shown).
Patent GB-422008-A (GB)
Title: Improvements relating to electric couplings
IPC: H01R4/38
Filed: 1933-10-27
Abstract: 422,008. Cable couplings. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and LAMBERT, C., 16, Bramley Crescent, Ilford, both in London. Oct. 27, 1933, No. 29872. [Class 38 (i)] In coupling a stranded cable to a terminal or intermediate part such as a busbar 1 or to another cable at right-angles, the cable is enclosed in a conducting sheath or wrapping such as a split copper sleeve 7 and is engaged by a V-shaped clamping member which compresses the enclosed cable and causes it to conform to the shape of the part to which it is being coupled. The Figure shows an arrangement for coupling three cables 2, 3, 4 of different sizes to a common bus-bar 1 by means of two W-shaped members 8 coupled together by a bolt 9 fitted with feathered washers 10 having convex undersurfaces in order to apply pressure to the members 8 in suitable directions. When a cable is terminated at the coupling, the wrapping 7 overlaps the end of the core, the space so formed being filled with a material impervious to moisture, and the junction between the sheath and the insulation of the cable is filled with insulating material and wrapped with insulating tape.
Patent GB-599897-A (GB)
Title: Improvements in or relating to electric steam irons
IPC: D06F75/14
Filed: 1945-11-09
Abstract: 599,897. Electric steaming-irons. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 9, 1945, No. 29964. Convention date, Dec. 5, 1944. [Class 138 (ii)] Means for introducing liquid into the tank 16 of an electric steaming-iron when the latter is up-ended on its heel rest, comprises a tube 60 which has an inlet opening 62 and is movable from a normal position, as shown in Fig. 1, in which the tube and opening are concealed, to a filling position, as shown in Fig. 2, in which the opening is exposed. The iron comprises a sole plate 10, a cover 12 and a handle 14, the tank 16 being disposed in the cover 12. The sole plate 10 is provided with a steam-generating chamber S, steam-flow passages 20, and a plurality of discharge ports 22. The passages 20, which are closed by a cover-plate 24, communicate with a steam dome 30 in the form of a tubular extension at the top of the tank 16 by a tube 34 so as to equalize pressure in the steam passages and tank 16. The opening through which the tube 34 passes in the coverplate 24 is sealed by a gasket 38 and spring- pressed washer 40, and the upper end of the tube 34 has a side opening 48 communicating with the steam dome 30. The tube 34 is secured in position by a screw 52 which passes through the tube into the sole-plate, and also serves to secure the front end of the handle 14 in position by means of a washer 53 engaging a shoulder 55 on the handle. The filling tube 60 is normally located inside the dome 30, being provided with a lug 66 which passes through the top wall of the dome and is detachably secured to the underside of an operating knob 72, which, in the operating position of the iron, forms part of the handle 14. The knob 72 and tube 60 are normally urged to closed position by a spring 82 confined between a bottom flange 64 on the tube and the top wall of the dome 30. During filling, the iron is supported on its heel rest and the knob 72 and tube 60 are pulled outwardly against the spring 82 and then turned slightly to permit a projection 94 on the knob to engage a shoulder 98 on the handle ; in this position, the tube 60 slopes slightly downwardly towards the handle and excess liquid will flow over the handle instead of over the body of the iron. While the tank 16 is being filled, the opening 62 in the tube 60 is below the front end of the tank so as to limit the amount of the liquid which may be introduced. A cupshaped baffle 84 in the tank minimizes splashing of the liquid in the tank and prevents liquid from entering the tube 34 through the steam dome 30 and opening 48 when the iron is in use. The baffle also serves to limit the amount of liquid supplied during filling by providing for the formation of an air pocket in the top of the baffle as the liquid level rises.
Patent GB-300216-A (GB)
Abstract: 300,216. Elbo, J. June 7, 1927. Moulding cork slabs; moulds; pressing plungers and dies; heating-apparatus.-Relates to apparatus for moulding cork slabs &c. wherein the material is compressed within a receptacle between separating plates, and consists in the provision of separating bodies which are formed with a corrugated or undulating surface or surfaces and are provided with internal passages for the conduction or reception of heat conducting or developing means. As shown in Fig. 1, the plates a are formed with a corrugated upper surface a<1> and are drilled with cross passages a<3>, a<4> for the passage of a heating medium which enters through passages d in the wall e of the receptacle. Distance-pieces c determine the interval between the plates and are furnished with apertures c<1> adapted to align with the passages d. In a modification the plates are spaced by pegs. The passages d may be closed by plugs &c. during filling and pressing. Fig. 6 shows a built-up plate comprising an upper corrugated plate g and a lower plane plate h separated by straight or sinuous strips i. Modifications are described in which the plates are electrically heated.
Patent GB-963886-A (GB)
Title: Method of producing oxytetracycline
Filed: 1960-08-31
Abstract: The antiobiotic oxytetracycline is produced by growing Actinomyces varsoviensis sp. nov. or an oxytetracycline-producing mutant thereof in an aqueous nutrient medium under submerged aerobic conditions, and isolating the oxytetracycline thus produced from the fermented broth. The oxytetracycline is isolated by known methods e.g. as the hydrochloride.  Specifications 648,417 and 713,795 are referred to.
Patent GB-1454096-A (GB)
Title: Numerical control systems
IPC: G05B19/4103
Filed: 1973-06-25
Abstract: 1454096 Calculating squares; pulse multiplying CINCINNATI MILACRON Inc 13 May 1974 [25 June 1973] 30090/73 Headings G4A and G4D The invention relates to an arrangement for numerical control of a machine tool for machining a workpiece in relation to co-ordinate axes X, Y, with means for deriving co-ordinate offsets for the tip of a tool having a radial offset R. To control the motion of the tool an interpolator 10 delivers pulses #x, #y in appropriate proportion to X and Y servos 13. Prior to this pulses in the same proportion are applied to circuits 14, 15; each pulse received releases clock pulses sufficient to completely cycle a respective shift register 16, 17. As each register cycles the value stored therein is incremented by unity and the previous value is read out to a doubling circuit 19 and an increasing circuit 20 and thence to an accumulator 22 which thus sums the first Nx and the first Ny odd numbers (equal to Nx<SP>2</SP> and Ny<SP>2</SP> respectively) and thus accumulates a value Nx<SP>2</SP>+Ny<SP>2</SP> where Nx, Ny are the numbers of X, Y pulses respectively. When this value is detected, at 26, to be equal to a previously stored value R<SP>2</SP> the individual counts reached in the registers 16, 17 are readout to servos 13 to preposition the tool.
Patent GB-1126563-A (GB)
Title: Improvements relating to tractor-drawn haymaking machines
IPC: A01B33/06
Filed: 1966-07-05
Abstract: 1,126,563. Haymaking machines MASCHINENFABRIK FAHR A.G. 5 July, 1966 [7 July, 1965], No. 30161/66. Heading A1F. In a haymaking machine of the type having pairs of oppositely-rotating driven rake-heads rotary about upright axes and mounted transversely to the direction of travel of the machine, so that the paths of the tips of the tines lie in planes inclined to the ground, the heads of each pair are relatively adjustable about a transverse axis so that the heads may have different inclinations to the ground The transverse axis is the axis of the transverse tube on which the rake-heads are all mounted, this tube adjacent to each rake-head being enlarged to form two-co-axial interfitting sleeves which are relatively adjustable about the tube axis by a spring-loaded lever on one sleeve engaging a detent on the other. By orienting the rake-heads in this way, a row of four heads (Figs. 2 and 3, not shown) may be caused to direct hay outwardly to form two windrows, or inwardly to form a single windrow.
Patent GB-872534-A (GB)
Title: Improvements in and relating to lighting fittings
Inventor: ENGLISH SOLOMON
IPC: F21V17/00
Filed: 1956-10-03
Abstract: 872,534. Lighting fittings. HOLOPHANE Ltd. Oct. 3, 1957 [Oct. 3, 1956], No. 30174/56. Class 75(2). A lighting fitting for use with long linear light sources e.g. fluorescent tubes comprises a reflector 15, an elongated enclosure 14 longer than the light source 33, the base 11 having ribs prisms or similar formations to control the light distribution, the sides being diffusing and/or reflecting and terminating in inwardly directed horizontal margins and the ends also being diffusing and/or reflecting, the edges of the reflector and of the enclosure being shaped to coact to locate the body in closed position but to permit removal of the body by lifting one side and moving the body transversely so that it can be swung down on one upper edge or removed by further shifting in the opposite direction. The reflector and body may be provided with interacting corrugations 16, 17, 18, the corrugations 16 housing a felt strip 19 to minimize the entry of dust. The end pieces may be separate and held in place by disengageable clamping plates 23 carried by the reflector. The reflector may be flat and support a box 26 for auxiliary electric fittings. The fitting may have flat sides and base, or the sides and ends may be curved and the base of trough form. Specifications 380,867, 551,109 and 619,084 are referred to.
Patent GB-266471-A (GB)
Title: Improvements in or relating to the protection of electrical circuits
IPC: H02H7/16
Filed: 1925-11-30
Abstract: 266,471. Baroni A. M., Pancotto, N., and Rogora, G. Nov. 30, 1925. Protective arrangements.-A condenser 5 placed in parallel with a load such as a motor 1 across an AC supply 3 is protected against insulation breakdown, voltage surges, resonance &c. by a fuse 6 placed in series therewith.
Patent GB-1422745-A (GB)
Title: Pharmaceutical compositions containing 4-hydroxy- 1,23-benzotriazine and methods of using same
IPC: C07D253/08
Filed: 1973-06-26
Abstract: 1422745 Inhibiting aggresive behaviour UNIROYAL INC 26 June 1973 [21 Aug 1972] 30219/73 Heading A5B A method of preventing or inhibiting aggresive behaviour in an animal comprises administering to the animal an amount of 4-hydroxy-1, 2,3-benzotriazine effective to prevent or inhibit said behaviour in the animal without simultaneously causing depression in said subject. The compound may be .administered in an orally administerable dosage form, e.g. a pill, tablet, capsule, solution or suspension, or may be parenterally administered e.g. as a solution or suspension or rectally administered e.g. as a suppository. The effective amount is preferably 2-100 mg/kg of body weight of animal per day.
Patent GB-820100-A (GB)
Title: Method of chamfering the edge of a cylindrical member
IPC: B24B9/00
Filed: 1957-09-26
Abstract: 820,100. Grinding. BENDIX AVIATION CORPORATION. Sept. 26, 1957 [Sept. 27, 1956], No. 30250/57. Class 60. [Also in Group XXIX] A method of chamfering portions 42, 44 of the edges of a cylindrical member, such as the valve spool 16 of a hydraulic valve, comprises mounting the spool at an angle to the axis of rotation 52 of a grinding fixture 46 which is rotated while a grinding wheel 48 is moved into contact with the spool. The spool is so mounted in the fixture that the centre of the land 24 of the spool and the axes of the spool and fixture intersect at 54. The grinding wheel 48, the axis of which is parallel to the axis of the fixture, is then fed into contact with the land 24 to simultaneously chamfer the portions 42, 44 of the edges an opposite sides of the land. By thus chamfering the edges, axial movement of the spool from on open flow neutral position in its housing results in a gradual increase in fluid pressure supplied, for example, to the piston of a power steering cylinder.
Patent GB-155982-A (GB)
Title: Improvements in or relating to the furnaces of steam boilers and the like
IPC: F23L1/02
Filed: 1920-06-24
Abstract: 155,982. Appleby, S., and Collier, T. June 24, 1920. Blast apparatus. - Air is supplied beneath the fire-bars of a steamboiler furnace through upwardly inclined tubes 4, into the outer ends of which are delivered steam jets from a perforated pipe 1. Deflecting-plates 6, 7 are provided on the inner ends of the tubes for distributing the air over the grate.
Patent GB-520404-A (GB)
Title: Improvements in or relating to hydraulic power transmission systems and speed governors therefor
IPC: F16H61/46
Filed: 1938-10-21
Abstract: 520,404. Hydraulic power transmission systems. VICKERS, Inc. Oct. 21 1938, No. 30447. Convention date, Nov. 17, 1937. [Classes 69 (ii) and 135] A. hydraulic power transmission system comprising a variable delivery pump 6 and a hydraulically operated power unit 12 has the pump regulated by a device actuated by a.spring- loaded piston 10 subject to the delivery pressure of an auxiliary control pump 17 driven by the output shaft 15 whereby the speed of. the said shaft is maintained constant: A branch pipe 20b on the pipe 20. connecting the pump 17 with the 'cylinder for the piston 10 is fitted with an adjustable leak-off valve 21 of the kind described in Specification 455,986, by means of which the control point may be adjusted. In the-form shown the pump 6 draws liquid from a tank 14 into which the motor exhausts but in a modification the pump and motor are connected in a closed circuit. In this form an auxiliary pump driven by the input shaft is provided, to replace leakage from the closed circuit and also supply a loading pressure on the piston 10 in place of a spring. In a further modification all three pumps are made reversible. The control pump is associated with four non-return valves so that the output is always directed to a single conduit leading to a manually operated four-way valve adapted to direct the fluid to the appropriate side of the conrol piston. The same valve directs the output from the make-up pump to the other side of the control piston.
Patent GB-990172-A (GB)
Title: Production of peroxy-hydrates of sodium condensed phosphates
Inventor: RUSSELL RALPH THOMAS
IPC: C01B15/16
Filed: 1961-08-24
Abstract: Peroxyhydrates of sodium condensed phosphates are made by mixing one mole condensed phosphate into at least three moles of 45 to 75% wt./wt., preferably 58 to 62%, H2O2, keeping the temperature below about 60 DEG  C., pouring the resultant solution on to sufficient sodium condensed phosphate to bind the still free H2O2 and leaving the soft homogeneous paste to solidify, the solid then being dried at up to 100 DEG  C.  Condensed phosphates specified are pyro-, tri-, meta- and polyphosphates. Examples describe the use of pyrophosphates. Specification 679,908 is referred to.
Patent GB-409228-A (GB)
Title: Improved warp stop motion for looms
IPC: D03D51/20
Filed: 1933-11-02
Abstract: 409,228. Loom warp stop - motions. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES, Mulhouse, Haut-Rhin, France. Nov. 2, 1933, No. 30520. Convention date, Nov. 3, 1932. [Class 142 (i).] In toothed-bar warp stop motions, the normally-movable bars 19 are mounted on a carriage 16 carrying a handle-lever 17 engaged in a slot 171 in a sector 9, which is slidable on an oscillating shaft 5 carrying a collar 6. Pins 10 on the sector 9 are normally held against shoulders 6<11> on the collar by means of a spring-pressed pin 7 between the collar and the sector The sector is thereby held in the raised position shown in Fig. 1. When a warp breaks, the motions of the bars 19 and of the sector are stopped, and relative rotation between the shaft 5 and the sector 9 causes the collar 6 to depress one or other of the pins 10 as shown in Fig. 5, so that the lower surface of the sector turns a stop-lever 14. The surface 9<1> is normally concentric with the shaft 5 so that the stop-lever 14 is stationary during normal operation. The handle 17 may be raised to disconnect the bars 19 from the oscillating sector 9 when finding broken warps. By arresting the movement of the handle 17, the operative may stop the loom at any time.
Patent GB-1098234-A (GB)
Title: Improvements in or relating to steering mechanisms for tracked vehicles
IPC: F16D69/00
Filed: 1965-07-19
Abstract: 1,098,234. Differential steering. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. July 19, 1965 [July 25, 1964], No. 30598/65. Heading B7H. [Also in Division F2] Each steering clutch or brake, of a steerin mechanism for a vehicle which is steered by differential driving and/or braking, includes a self-contained coolant and/or lubricant circuit and a friction disc 3 with slots and grooves 12 which are curved and/or are directed radially and/or tangentially to a base circle and pump the coolant and/or lubricant round the circuit. In the clutch in Fig. 1 the friction disc 3 on the driving member 2 is pressed by an hydraulic piston 4 in a cylindrical sleeve 8 against a friction lining 5 fitted to a clutch housing 14 which has passages for coolant/lubricant flow. The disc, Fig. 2, is provided with a spiral groove 25 on its friction surfaces to cool the friction face and straight or curved grooves 22, 23 and 24 and slots 22a, 23a and 24a to pump the coolant/lubricant. The driving member may alternatively be provided with twin clutch discs (33) (Fig. 3, not shown), the clutch housing with baffles (40), (41) and means (46), which may be actuated automatically in dependence on the rotational speed of the clutch, for discharging the coolant/lubricant and the driving shaft with a central bore for refilling and for circulating additional fluid when the means (46) is actuated.
Patent GB-368675-A (GB)
Title: Manufacture of calcium carbide
IPC: C01B32/942
Filed: 1931-11-04
Abstract: Pressed bodies made from dry calcium oxide or hydroxide powder without the use of a binding agent as described in Specification 363,526 are employed in the manufacture of calcium carbide, being reacted with carbon in a carbide furnace.  Specification 306,042, [Class 2 (i), Acetylene], also is referred to.
Patent GB-921052-A (GB)
Title: Improvements in or relating to travelling cranes
IPC: B66C7/00
Filed: 1959-09-08
Abstract: 921,052. Overhead travelling cranes. E. M. LEWIS. Sept. 8, 1960 [Sept. 8, 1959], No. 30604/59. Class 78 (4). The wheels 5, Fig. 1, supporting the bridge of an overhead crane have rubber tyres and are guided along a flat trackway 6 by further wheels 9. As described, the wheels 5 and 9 have pneumatic tyres although solid rubber tyres may be used. Five track wheels are arranged in single file at each side of the crane bridge, with a guide wheel at each end of the file. One track wheel in each pile is driven by an electric motor controlled from a cab 7 mounted on the crab. The wheels may be lifted from the trackway by jacks situated one at each end of the file of wheels. In a second embodiment, Fig. 6, a bridge 39 is carried on uprights 40, 41, each fitted with four pairs of track wheels 42, Fig. 7, the wheels of the upright 41 running either side of a guide ridge 43, Fig. 6, which is engaged by two pairs of guide wheels 44. One pair of track wheels on each side is driven as described above. In an alternative construction the track wheels may run in single file on top of the ridge 43 or the arrangement may be similar to that shown in Fig. 1, the ledge 6 being a few inches only from the floor. Alernatively, the construction may be as shown in Fig. 6 except for the guide wheels 44 which may engage the walls of the building in which the crane works. Any of the above arrangements may be applied to the crane shown in Fig. 1, and to cranes in which one end of the bridge is supported by a track attached to a wall and the other end by an upright such as 40 or 41.
Patent GB-407899-A (GB)
Title: Projectile for incendiary purposes and for producing a flash or smoke
IPC: F42B12/44
Filed: 1933-11-03
Abstract: 407,899. Projectiles. SOC. METALLURGICA ITALIANA, 18, Via Leopardi, Milan, Italy. Nov. 3, 1933, No. 30635. Convention date, Nov. 7, 1932. Addition to 393,852. [Class 9 (i).] Relates to projectiles in which a closed casing is fitted in a projectile and projects therefrom so as to be broken on impact and liberate a phosphorus charge which becomes ignited on exposure to air, all as described in the parent Specification. According to the invention, the casing 1, which is closed at the rear by a lead plug 3, is arranged in a cup 2, which is screwed or otherwise detachably mounted in the nose 5 of an ordinary projectile.
Patent GB-957906-A (GB)
Title: Improvements in or relating to garden shears
IPC: A01G3/02
Filed: 1961-08-25
Abstract: 957,906. Garden shears. D. J. COOTE. Nov. 23, 1962 [Aug. 25, 1961], No. 30720/61. Heading B4B. In a pair of garden shears in which the handles are angularly adjustable relatively to the blades and in which each handle has a root portion 3a in angular relationship to a principal portion, each portion 3a receives a cylindrical spigot 4 extending from the associated blade stub 2, the spigot having freely mounted thereon a nut 5 and a helical spring washer 6, the washer and an end wall 5a of the nut being imprisoned behind a collar 7 secured on the spigot, and the collar having diametrically-opposite projecting teeth 8 selectively engageable with one of two pairs of notches 9a, 9b formed in the end of the portion 3a. After the teeth 8 have been engaged with the selected pair of notches, the nut 5 is secured on the screwthreaded end 10 of the portion 3a.