baber/WOPTO huggingface dataset:
Patent GB-928997-A (GB)
Title: Electromagnetically operated fluid control valves
IPC: H01F7/16
Filed: 1962-02-05
Abstract: 928,997. Valves. G. KROMSCHRODER A.G. Feb. 5, 1962 [Feb. 6, 1961; April 29, 1961], No. 4313/62. Class 135. Upon closure of a switch 22 three parallelconnected solenoid windings 101, 10<SP>11</SP>, 10<SP>111</SP> are joined to an A.C. supply via a rectifier 21; the inner winding 10<SP>1</SP> is directly energized so elevating a three-part armature 6<SP>1</SP>, 6<SP>11</SP>, 6<SP>111</SP> and unseating a lift closure member 2 to a position where both of its throttling plugs 8, 9 are disposed within the seat 3. The other two windings 10<SP>11</SP>, 10<SP>111</SP> are initially ineffective since the associated circuits include resistances 20, 20<SP>1</SP> of negative temperature coefficient. As the temperature of resistance 20 increases, the current through winding 10<SP>11</SP> also increases and the three-part armature is slowly elevated to a position in which only throttling plug 9 is within the seat. After a further period the winding 10<SP>111</SP> is also gradually energized whereupon the closure member 2 is fully open as shown. Windings 10<SP>11</SP>, 10<SP>111</SP> are each in circuit with a thermostatically controlled switch 23 or 23<SP>1</SP> which may be responsive to room temperature if the closure member 2 controls the flow of heating medium to the room. Further switching stages may be added or one stage omitted. The windings are of equal height and the three armatures, which are of different length, are connected by rods 7<SP>11</SP>, 7<SP>111</SP> of different length, the longer rod 7<SP>111</SP> interconnecting the shortest armatures. The plugs 8, 9 are of equal height and correspond to the stroke length of the windings with which they are associated.
Patent GB-570368-A (GB)
Title: Improvements in and relating to sedimentation-tank scraping apparatus
IPC: B01D21/00
Filed: 1943-03-17
Abstract: 570,368. Gravity separation apparatus HARDINGE CO., Inc. March 17, 1943, No. 4353. Convention date, Feb. 18, 1942. [Class 111] The scraper of a sedimentation tank is driven through means which automatically raise the scraper with a progressively increasing force. when excessive resistance is encountered. The scraper arms 14 are fixed to a tubular member 13 rotatably mounted around a central pier 11 on which the driving gear is mounted and by which a gangway 17 carrying the influent launder 19 is supported. The driving gear comprising a motor 45, gearing 46, worm gearing 44, 43, and a pinion 38 driving a ring gear 36 are supported in a cylinder member 12 fixed by a flanged -tube. 30 and bolts 32 to the top of the pier 11. The rotatable tubular member 13 is driven from the ring gear 36 by struts 53 inclined at an acute . angle with'the direction of rotation, these struts being universally pivoted on flanges 37, 48 respectively of the ring gear 36 and tubular member 13 and turnbuckles 54 allowing adjustment of the angle. Thus when the scraper meets excessive resistance the reaction causes the struts to assume a greater angle shown dotted in Fig. 4 and so to lift the scraper which is maintained concentric with the pier by means of a cylindrical bearer 49 which is fixed to the tubular member 13 and engages around a flange 31 extending from the pier, a similar centralizing arrangement 51 being provided at the lower end. Excessive upward movement operates switches 65, 66 first to give an alarm and then to stop the drive. The flange 37 of the ring gear 36 carries stop posts 61 with resilient pads 611 which engage the flange 48 to limit . the downward movement; upward movement is limited by radial finger pieces 62 from the ring-gear flange 37 engaging lugs 63 on the tubular member 13 after a certain relative angular displacement.
Patent GB-548118-A (GB)
Title: Improvements in or relating to electric elevator control systems
IPC: B66B1/08
Filed: 1941-04-01
Abstract: 548,118. Control'of D.C. motors. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. April 1, 1941, No. 4355. Convention date, April 4, 1940. [Class 38 (iii)] A lift motor H is supplied from a generator G which is driven by a motor M together with an excitor EX, and a regulator machine R. Movement of car switch CS on to " up " contact 22 energizes contactor coil U which at contacts U<SP>2</SP>, U<SP>3</SP> completes the circuit of pattern field RPF of regulator R. The regulator R energizes the generator field GF, and a differential field RDF across the armature 9 acts on the regulator R to cause the voltage of generator to correspond to the excitation of the pattern field RPF. This action is assisted by a field RCF on the regulator which is so proportioned that 1 amp. through this field produces just sufficient E.M.F. to drive 1 amp. through the armature R and field GF. A field RSF on the regulator compensates for varying voltage drop due to load in the circuit of the motor armature H. When the car approaches a floor at which it is desired to stop, the switch CS is returned to contact 28 and an inductor relay operated by a hatch plate causes a contact V<SP>1</SP> to open to reduce the excitation of the pattern field RPF, and another inductor relay at the landing causes contactor U to be de-energized and a mechanical brake B to be applied. The brake B is released upon starting of the lift with a delay after the field RPF is excited so as to ensure that the motor H will take the load.
Patent GB-409259-A (GB)
Title: Improvements in and relating to axle boxes
IPC: B61F15/12
Filed: 1933-04-28
Abstract: 409,259. Axle - boxes. SHEFFIELD, G. H., and SHEFFIELD & CO. (ENGINEERS), Ltd., G. H., 38, Victoria Street, London. April 28, 1933, No. 4502/34. Divided on 407,754. [Class 12 (i).] An axle-box for rail vehicles comprises an outer frame of welded plates, bars or channels a, b and an inner tubular shell q for an antifriction bearing, supported in position by two or more diaphragm plates q<1> welded to the outer frame. The fixed box shown in Fig. 1 comprises a frame of four channel members, an inner plate e welded to the frame, an end cover f also welded to the frame, and semitubular struts or vertical ribs (not shown) welded outside the vertical channel members, serving as housings for the retaining bolts. Any suitable labyrinth device s may be welded to the plate e. The spring-supported box shown in Fig. 5 comprises top and bottom plates t, t<1>, side plates h, h<1>, and end plates, all welded together. Strengthening-bars v welded to the side and end plates also act as lateral checks for the spring beam forks (not shown) which carry the load on semi-circular bearings w. In both forms, further strengthening by means of transverse ribs i may be obtained.
Patent GB-246327-A (GB)
Title: Improvements in the laying of electric conductors
IPC: H01R4/22
Filed: 1925-02-18
Abstract: 246,327. Eimers, A. Feb. 18. 1925. Junction boxes.-The box a, in which a coupling is immersed in an insulating composition that solidifies on cooling, forms a clamping connection with an insulating block l that carries the coupling-member k. The block may be formed with grooves m into which extend internal projections i on the box. Alternatively the block l may be held by fitting at least by its edges within the box, the block being, for instance, rectangular in cross-section and the box circular. A cover h may be provided and may be swinging or attached by a bayonet joint.
Patent GB-365829-A (GB)
Title: Improvements in or relating to wall-nails
IPC: A47G1/20
Filed: 1931-02-13
Abstract: 365,829. Nails. LANE, J. B., 45A, New Church Street, Bermondsey, London. Feb. 13, 1931, No. 4550. [Class 89 (ii).] A wall nail has its head A formed from a sheet of soft metal. The spike B is passed through a hole in the head, the sides of this hole having projecting portions b which grip the side of the spike. Specifications 18936/91, [Class 89, Nails &c.], and 312,776, [Class 89 (ii), Hooks &c.], are referred to.
Patent GB-305820-A (GB)
Title: A golf tee
IPC: A63B57/00
Filed: 1928-02-14
Abstract: 305,820. Geddes, W. J. Feb. 14, 1928. Tees.-A portable golf tee is constructed with a wedge - shaped base piece, containing a circular recess to hold the ball, and is provided with a hinged peg or spike to fix the tee in the ground. The base consists of an inclined part A, a horizontal part containing the recess B, and a flat underside. The inclined part A terminates in a pronged lip G. A spike D is hinged to the underside of the base, and has a shoulder to limit its forward position as shown, and when not in use folds up into a recess. The curved shape of the spike facilitates its withdrawal from the ground in the event of the tee being struck by a golf club.
Patent GB-546064-A (GB)
Title: Improvements relating to electric lighting fittings
IPC: F21S8/00
Filed: 1941-04-07
Abstract: 546,064. Lighting fitting. BRITISH THOMSONHOUSTON CO., Ltd., EDINBOROUGH, E. R., and WATTS, H. E. G. April 7, 1941, No. 4615. [Classes 75 (iii) and 75 (iv)] Two or more trough-shaped reflectors 1, 2 enclosing double-ended electric discharge lamps 10 are secured in longitudinal alignment to carriers 3, 4 which support the lamp choke, starting switch or other control gear and are hung by slings 5 or other suitable means from the ceiling or roof girder or attached to wall brackets. The end walls of the reflectors or carriers are connected by nuts and bolts and support bases for the lamps 10. The sling 5 at the far end of the line of reflectors may engage either the reflector or a carrier without control gear. The carriers are provided with holes 8, 14 in the base and sides for the passage of the starting switch and supply conductors respectively. A channel 11 for the supply conductors is provided on the top or underside of the reflectors. In another construction the troughs are formed by two separate side pieces spaced apart at their upper ends to allow light to pass upwardly, each side piece being preferably formed at its upper end with an enclosed wiring channel.
Patent GB-672370-A (GB)
Title: Process for the manufacture of p-(ethylureido-) benzalthiosemicarbazone
Filed: 1950-02-23
Abstract: p - (Ethylueido-) benzalthiosemicarbazone is prepared by reacting ethyl isocyanate and p-aminobenzalthiosemicarbazone.  The reaction is preferably carried out in a solvent, e.g. pyridine, acetone or dioxane.  One example is given.
Patent GB-452011-A (GB)
Title: Improvements in and relating to shop lighting units, floodlighting units, or the like
IPC: F21V5/00
Filed: 1935-02-13
Abstract: 452,011. Shop-window, floodlight, &c. lamps. HOLOPHANE, Ltd., and ENGLISH, S., Elverton Street, Vincent Square, Westrninster. Feb. 13, 1935, No 4656. [Class 75 (ii)] A refracting plate adapted to produce a unilateral distribution of light from a shopwindow, floodlight, or like lamp, is formed with a series of prisms each with an arcuate surface so that light normal to the plate is refracted by each prism by amounts varying from zero to a predetermined degree. The refracting plate may be arranged perpendicular to the axis of a symmetrical parabolic reflector, the light distribution being unilateral with respect to an arbitrarily chosen plane passing through the reflector axis. The prisms may be straight and parallel with said plane, or arcuate about centres lying on a line through the reflector axis perpendicular to said plane. Adjacent prisms may be separated by narrow clear zones through which the light is not deviated, these zones merging into the prisms at their thick side. Fig. 1 shows a shopwindow lamp comprising a light source 1, a parabolic reflector 2, and a flat-bottomed cover plate 3 formed on its outer surface with prisms 5 separated by clear zones 9, Fig. 3, and each having a concave arcuate face 7. The lip of the plate 3 may be formed with vertical diffusing prisms 6. Fig. 5 shows a floodlight lamp comprising a parabolic reflector 18 and a domed cover plate 16 formed on its inner surface with prisms 5 each having a convex arcuate face 7 merging into a clear zone 9, Fig. 7. Fig. 8 shows clear zones 9 independent from concave arcuate faces 7. Specification 406,042 is referred to.
Patent GB-1508611-A (GB)
Title: Piston for internal combustion engines
IPC: F02F3/26
Filed: 1975-02-04
Abstract: 1508611 Pistons PERKINS ENGINES Ltd 24 Feb 1976 [4 Feb 1975] 4680/75 Heading F2T An I.C. engine piston 1 having a crown portion 2, a skirt portion 5 and gudgeon pin bosses 6 and 7 has reinforcement portions 8, (9) (Fig. 2, not shown) attached to and merging with the skirt portion 5. In the embodiment shown in Fig. 1 the reinforcement portions are constituted by ribs which merge smoothly with the gudgeon pin bosses 6, 7. In an alternative embodiment (Figs. 4 to 6, not shown) the reinforcement portions are thickened parts of the skirt merging smoothly into the piston crown. The piston 1 incorporates a combustion chamber 3 having an overhanging lip 4 which may be constituted by a separate member 40. Bores in the piston may connect oil control grooves with the interior (Fig. 5, not shown).
Patent GB-566769-A (GB)
Title: Improvements in or relating to pistons
IPC: F16J1/00
Filed: 1943-03-24
Abstract: 566 769. Pistons. LOCKWOOD & CO. (PLASCO), Ltd., ASHTON, E. C., OPENSHAW, C. M., and ASHTON, G. B. March 24, 1943, No. 4768. [Class 122 (i)] Piston rings 4, preferably of plastic metallic material, are disposed between a ring 3 and slidable members 1, 2 compressed between a flange 8 and tube 9 on the piston rod. Axial adjustment of the members 1, 2, either by means of the tube 9 from outside the cylinder or by the pressure fluid acting on the members 1, 2, compresses the packing axially and causes it to expand radially into contact with the cylinder wall.
Patent GB-1444827-A (GB)
Title: Roofs with openable panels more especially for motor vehicles
IPC: B60J7/05
Filed: 1974-02-01
Abstract: 1444827 Vehicle roofs W BAIER W BAIER L SCHOBER and E SCHLUMPRECHT 1 Feb 1974 [14 April 1973] 04790/74 Heading B7B A roof, particularly for a vehicle, includes an aperture closable by a panel 3 pivotally mounted about axis 2, the panel having at each side movable shield plates 4 whose downward movement relative to the panel is limited by a stop 7 on a guide 10. The shield plates 4, which may be plastics, are pivoted at 5 to the panel and extend normally thereto. The plates may be urged downwardly by a spring 6; when the panel closes the aperture the plates 4 are lifted upwardly from stop 7 by contact with gutter or drip moulding 8. The panel is arranged so that it may be slid beneath fixed roof portions to open the aperture.
Patent GB-511359-A (GB)
Title: Improvements in and relating to electric signalling apparatus
IPC: G10K1/062
Filed: 1938-02-16
Abstract: 511,359. Inductor altimeters. BAILEY, W. C. Feb. 16, 1938, No. 4792. [Class 35] [Also in Group XXXVIII] In an electric signalling apparatus employing a bell actuated by a pivoted armature operated by induced curents, the transmitter comprises coils 11, 12, mounted on pole -pieces 13a, 13b of a permanent magnet 13 and connected to the operating coil of the receiver. An armature 15 supported by a blade spring 15a is normally in contact with the pole-pieces 13a, 13b and is engaged by the teeth of a rotatable star-wheel 16 to effect intermittent making and breaking of the magnetic circuit.
Patent GB-212536-A (GB)
Title: Improvements in refrigerating machines
IPC: F25B3/00
Filed: 1924-02-26
Abstract: 212,536. Audiffren Refrigerating Machine Co., (Assignees of Karr, A. D., and Perkins, K. D.). March 7, 1923, [Convention date]. Refrigerating, compression machines for; cooling gases, hollow fans for; refrigerators, domestic and like.-In machines of the type employing sulphur dioxide as the refrigerant and comprising coaxial rotary members 10, 11, Fig. 1, constituting respectively the condenser and the evaporator, as described for example in Specification 13692/06, the members are formed or provided with radial gills or blades 20, 21, Fig. 3, of heat-conducting material such as copper, to facilitate exchange of heat with the surrounding air. The vanes are shaped so as to produce a flow of air towards all parts of the drum except at the transverse equatorial plane, where the air is discharged. The condenser may thus be cooled entirely by air, while the evaporator 11 may be without vanes, as shown in Fig. 1, and cool brine in a tank 17 for circulation by a pump 36 through coils 35 of a refrigerating-chamber 19, or it may be vaned and be used to cool air in a chamber and circulate it through a separate refrigerating-chamber, or to cool a chamber directly and produce a circulation of the confined air. Preferably alternate blades are short, as shown in Fig. 3, and a gap 24, Fig. 1, is provided in the middle of the length of the blades. The blades may be of gradually varying. radial depth, as shown in Fig. 10, and the corners may be bent towards the direction of rotation. The condenser may be housed in a casing having a spiral delivery passage 29, Fig. 6, for the air, while the evaporator may have fixed directing. baffles 34<1>, Fig. 7, at its open sides and deliver the cooled air into a spiral passage 33. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following :- The condenser may be cooled by surrounding liquid. The blades may be applied to vessels of lenticular or globular shape used generally for the exchange of heat. This subject-matter does not appear in the Specification as accepted.
Patent GB-549360-A (GB)
Title: Improvements in electric motor speed regulating systems
IPC: H02P5/50
Filed: 1941-04-15
Abstract: 549,360. Automatic control systems for electric motors. MASON, F. R., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. April 15, 1941, No. 4908. [Class 38 (iv)] Speed.-An electric motor At and a speed reference means such as a motor RM are maintained in a given speed relationship by a Selsyn connection S, S1 between them and a device ER1 responsive to the direction of power flow between the Selsyn elements whereby a  periodic contact device R1 is adjusted to vary the field .strength of the controlled motor. The invention is described as applied to the motors A1, A2, A3 of a paper mill wherein each successive pair of motors is also similarly controlled by contact devices R2, R3 and variable speed gears connect the Selsyn elements to the motors to permit individual speed adjustments. The motor armatures are supplied from a generator GA, the voltage of which is regulated jointly with the field of the motor RM to adjust the speed of the mill, and the motor fields are supplied from an exciter E and have individual field rheostats. The contact devices R1 ... R3 shown have vibrating or oscillating contacts cam actuated by a constant speed motor IM.
Patent GB-1194999-A (GB)
Title: Combined Set Point and Meter Assembly
Inventor: CAWTHORNE ARTHUR DAVID
IPC: G01R11/02
Filed: 1969-01-29
Abstract: 1,194,999. Electric meters. MOTOROLA Inc. Jan.29, 1969 [March 18, 1968], No.4956/69. Heading G1Q. A combined indicating meter and set point control unit, for use in process control systems wherein a set point is to be adjusted in accordance with the meter reading, incorporates a housing having two opposing parts 10, 11 which fit together to form an enclosure. A meter face 17 extends behind a transparent end wall 18 at one end of the housing. A meter movement 12 having a pointer assembly 15, 14 is mounted on one housing part 10. An elongate slide wire resistance 20 extends along and adjacent to the meter face and has an impedance distribution colinear with the graduation marks on the meter face. A slider contact 27 is mounted on slider assembly 26 fitted to unit 47 which is rotatably mounted on the second housing part 11. The assembly has an indicator arm 36, 35 which extends in front of the graduations on the meter face, between the face and the meter indicator arm 14. A drive wheel 42 is rotatably mounted on the upper housing part and is operatively coupled by band 46 to the unit 47 so that this may be rotated by rotating the drive wheel, which projects for this purpose in front of the transparent end wall of the combined instrument. The slide wire is energized via leads 23, 24 and the potential at the slider contact detected over lead 29. Any required law e.g. linear or logarithmic, may be used for the meter movement and slide wire resistance.
Patent GB-783299-A (GB)
Title: Rotary-cultivating apparatus
Inventor: HOWARD ARTHUR CLIFFORD
IPC: A01B33/02
Filed: 1955-02-19
Abstract: 783,299. Agricultural implements. ROTARY HOES, Ltd. Feb. 16, 1956 [Feb. 19, 1955], No. 5033/55. Class 6(1). A rotary cultivator comprises a wheeled carriage 10 provided with a universal connection 14 for attachment to a tractor and pivotally supporting a rotary cultivating implement 18, a telescopic screw device 36 being provided to orientate the implement about the pivotal support to adjust the depth of working. As shown the implement is raised or lowered by means of a hydraulic cylinder 39. The implement 18 is driven from the tractor power shaft through a telescopic transmission shaft 45 the front of which is supported in a bearing pivotally mounted in a stanchion 53. A shield 20 is provided and is formed with an adjustable depth controlling tail-board 25. This feature is the subject of Specification 781,645. The tailboard may be replaced by an adjustable skid.
Patent GB-1325286-A (GB)
Title: Process for the separation of an organic polyisocyanate mixture
IPC: C07C265/12
Filed: 1972-02-03
Abstract: 1325286 Separation of polyisocyanate mixtures GOTTFRIED REUTER GmbH 3 Feb 1972 [4 Feb 1971] 5046/72 Heading C2C [Also in Divisions B2 and C3] An organic polyisocyanate mixture which contains, in preponderant amount, diphenylmethane diisocyanate isomers and higher functional polyisocyanates with more than two benzene rings in the molecule is separated by first separating the mixture by a short path distillation into a first fraction which contains a residue of diphenylmethane diisocyanate isomers together with the higher functional polyisocyanates and into a second fraction which, of the polyisocyanates, contains practically only the diphenylmethane diisocyanate isomers and secondly separating the second fraction by fractional crystallization into a third fraction, which predominantly comprises 4,4<SP>1 </SP>- diphenylmethane diisocyanate, and into a fourth fraction, in which the 2,2<SP>1</SP>- and 2,4<SP>1</SP>- isomers of the diphenylmethane diisocyanate are enriched in the 4,4<SP>1</SP>-diphenylmethane diisocyanate. The second fraction may be freed from volatile substances and sparingly volatile, chlorine-containing compounds by a fractional distillation prior to the crystallization step. The fractional crystallization is preferably combined with a wash process in which the wash liquid is a diphenylmethane-diisocyanate mixture with a high content of 4,4<SP>1</SP>-isomer.
Patent GB-452759-A (GB)
Title: Improvements in or relating to packages and to machines and methods for producing such packages
IPC: B65D75/52
Filed: 1936-02-19
Abstract: 452,759. Cutting webs. PARRY, F., and MOLINS MACHINE CO., Ltd., 2, Evelyn Street. Deptford, London. Feb. 19, 1936, No. 5065. [Class 31 (i)] [See also Groups XVII and XVI] A web 17 is fed by rolls 24, 25 to pass between scoring rolls 19, 20, 21, and then through guides 26, 27 to the cutting mechanism 28 consisting of blades 29, 30 mounted on a carriage 31 which is pivoted at 32 and oscillated by a cam 33. The blade 30 is reciprocated with regard to the carriage by a cam 34 the arrangement being that the blades effect severance of the material when moving substantially at the same speed. A' carrier 35 receives the severed piece and lowers it edgewise on to the bed 38. Specification 275,705, [Class 94 (i)], is referred to.