baber/WOPTO huggingface dataset:
Patent GB-1504346-A (GB)
Title: Method of constructing a curved roof structure
IPC: E04B7/14
Filed: 1975-08-29
Abstract: 1504346 Prestressed roof slabs ELSPAN INTERNATIONAL Ltd 29 Aug 1975 35765/75 Heading E1W A reinforced concrete slab for use as a roof slab is bent into a singly- or doublycurved shape by means of externallyarranged cables 31, 32 connected at points along their length to the reinforcement of the slab by hangers 31, or by struts when the cables are arranged under the slab, the cables being then stressed longitudinally. In the embodiment shown, some cables pass over pillars 34, and other cables are supported by these cables. In the embodiment of Fig. 1, (not shown), trenches (12) are formed in the ground to accommodate the cables prior to stressing a slab into a singly-curved shape, the slab thereafter being lifted into position. The cables may be completely straightened, or encased in steel tubes and only partially straightened, the tubes buckling and thereby stabilising the structure. The slabs may be from ¢ inch to 4 inches thick.
Patent GB-757623-A (GB)
Title: Improvements in and relating to winders, hoists and the like
Inventor: EVANS OWEN THOMAS
IPC: B66B15/08
Filed: 1953-12-23
Abstract: 757,623. Hoists. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Dec. 23, 1954 [Dec. 23, 1953], No. 35783/53. Class 78 (5). In a hoist comprising position-responsive control means (e.g. 7, 8) coupled to a Koepe driving pulley 1 by angularly-adjustable means 16, actuating means 19 adapted to displace said position-responsive means with respect to the pulley or sheave, are jointly responsive, on the one hand to the mine cage being at a predetermined position, and on the other hand to the position of said position-responsive means, whereby to adjust the position of said positionresponsive means with respect to the pulley so as automatically to reset said means into the correct positional relationship with the cage. As shown, Koepe pulley 1 is driven from shaft 2, which latter shaft is connected by shafts 5, 3, 17 to differential gear 16, which gear has one component connected to and drivable by servomotor 19 and has its other component connected to drive three devices, respectively Lilly speed controller 7, depth indicator 8, and control drums 24, 34, both supported on shaft 20. Drum 24 (Fig. 5), is secured to shaft 20, and drum 34 is free upon but clutchable to said shaft 20, both drums carrying cams (not shown) which actuate cam followers which permit working under either man/ore conditions. The drum 34 carries switch 39 so that, when the cable slips relative to Koepe pulley 1, relative movement occurs between drum 24 and reference drum 34. Contacts 42A, 43A are accoringly operated by engagement of member 40 with cams 42, 43 carried by drum 24 so as to switch in servomotor 19 to displace controller 7 and indicator 8 relative to Koepe pulley 1 so that the speed control operates at the correct levels. Thus, as the cage approaches bank, it operates magnetically or photo-electrically a shaft switch which causes loose drum 34 to be clutched to shaft 20 as a reference drum and to displace member 40 to operate one of the switches 42A, 43A, assuming slip to have taken place during the wind. The cage rises further to bring itself to a stop by operating a limit switch, which switch de-clutches drum 34 from shaft 20 and locks said drum whilst, at the same time, it completes the circuit of motor 19 so that the latter is driven so as to displace controller 7, indicator 8 and drum 24 so that the different members of the system are again in step with Koepe pulley 1. Alternatively, switch 39 may be fixedly positioned, drum 34 being omitted and a second switch 39A (not shown) may be positioned for operation at the other end of the wind. The Koepe drum may be driven by an electric motor connected in a Ward-Leonard system.
Patent GB-1092523-A (GB)
Title: Improvements in or relating to devices for working crop lying on the ground
IPC: A01D78/10
Filed: 1964-09-01
Abstract: In a haymaking machine, of the type having driven tined rake-heads rotating about axes oblique to the ground and each rake-head having tines which are secured to the outer ends of spokes, the spokes are each capable of turning against resilient opposition about a pivotal axis which is skew to the axis of rotation of the rake-head, all the pivotal axes lying in a plane perpendicular to the axis of rotation. The heads are arranged in oppositely-rotating pairs driven from a common gearbox, the gearboxes being pivotally attached to further gearboxes mounted on a transverse hollow frame-member which houses a drive-shaft, one of the further gearboxes receiving a drive from the towing tractor to which it is coupled by an adjustable drawbar.  Each head has a ground wheel beneath it within the sweep of the tines. The head comprises a square plate upon which are arranged bearings for four tubes arranged in a square and surrounded by coil-springs, each tube being perpendicular to and integral with a tubular spoke. The tines are bolted to the outer end of each spoke in pairs and surround the spoke by coils which are distorted slightly by bolting so that the end of the tine is under stress.  Each tine is curved so that its outer end is perpendicular to the ground although the rake-head-axis is at approximately 45 degrees to the vertical.
Patent GB-1475357-A (GB)
IPC: A01N43/88
Filed: 1974-08-15
Abstract: 1475357 Mixed herbicides BASF AG 15 Aug 1974 [17 Aug 1973] 35947/74 Heading A5E A herbicidal composition comprises a) a pyrazolium compound of the formula: where R denotes alkoxy, or phenyl which may be substituted by a halogen or alkyl; and at least one of b), c), and d) where b) is a benzothiadiazinone-dioxide compound of the formula where R denotes alkyl and R<SP>1</SP> denotes hydrogen or one equivalent of a cation; c) is an aromatic compound of the formula where X denotes chloro, bromo, iodo, nitro, cyano or alkyl, n denotes one of the integers 0, 1, 2, 3 or 4 and R denotes hydrogen, one equivalent of a cation, -C- alkyl, # O R<SP>2</SP> and R<SP>3</SP> denoting hydrogen, alkyl or substituted or unsubstituted aryl, Y denoting chloro, bromo or iodo and R<SP>1</SP> denoting alkyl, -C-alkyl or hydrogen, or one equivalent of # O a cation; and d) is a phenoxy carboxylic acid compound of the formula where X and Y denote chloro or methyl, n denotes 0, 1, 2 or 3, R denotes hydrogen or alkyl, m denotes 0, 1, or 2, and R<SP>1</SP> denotes alkyl or hydrogen, or one equivalent of a cation. Other herbicides may be included. The compositions find application as total herbicides or as selective weed-killers in crops.
Patent GB-1192576-A (GB)
Title: Diagnostic Substance and Composition
Inventor: RAJEWSKY BORIS
IPC: A61K49/00
Filed: 1967-08-07
Abstract: 1,192,576. Diagnostic substance. B. RAJEWSKY and G. WILHELM. 7 Aug., 1967 [6 Aug., 1966 (2)], No. 36091/67. Heading B1X. [Also in Division C3] A diagnostic substance which may be used in immunological tests, for example as a diagnostic for rheumatism comprises a nucleoprotein with a UV maximum of approximately 259 mÁ and a migration velocity of from 4.5. to 6 cm. per 2 hours in electrophoresis (veronal buffer 0.1M., pH 8.6, 11V/cm). It may be obtained from human or animal organs or streptococca.
Patent GB-743109-A (GB)
Title: Power transmission belt
IPC: F16G5/20
Filed: 1951-03-16
Abstract: 743,109. Driving belts. MAY, C. H. March 16, 1951 [March 21, 1950], No. 36319/54. Divided out of 743,056. Class 80(1) A continuous V-belt comprises a single continuous cord 251 of metal, rayon, nylon, or other textile material, wound in a single layer in the neutral axis of the belt and sandwiched between two layers of bias cut fabric 253, 254. The cord is spaced from the two layers of fabric by rubber insulation. The cords &c. are encased in rubber 255, preferably formed from layers vulcanized together, surrounded by a bias cut fabric cover 256. A strip of corrugated rubber 257 is secured to the botton of the belt and is capped by a straight cut fabric strip 258. The belt may be used in the motor vehicle variable ratio gear described in Specification 743,056.
Patent GB-1299084-A (GB)
Title: Improvements in or relating to rectangular distributors
Inventor: ROWLEY ROBERT
IPC: C02F3/04
Filed: 1969-07-18
Abstract: 1299084 Effluent distributors SIMON-HARTLEY Ltd 16 June 1970 [18 July 1969] 36326/69 Heading B2F In an effluent distributor wherein fluid is fed onto the upper surface of a rectangular filter bed from a member reciprocating above the bed, a plurality of rows of orifices for feeding the fluid onto the bed is provided, the rows being at different heights. As shown, a trough 10 reciprocates above the bed, running on rails T and drawn by ropes 12. The trough has rows of orifices 15a and 15b in its opposite sides, row 15b being above 15a (see also Fig. 2 not shown). Effluent enters the trough via one or both of siphons 13, 14 which draw effluent from tank C extending the length of one side of the bed. The siphons discharge into tanks 16, 17 which are provided with weirs 18, 19 over which the effluent flows into the trough.
Patent GB-1354594-A (GB)
Title: Frequency to voltage converter circuit
IPC: G01R23/06
Filed: 1971-08-03
Abstract: 1354594 Frequency to voltage converter FORD MOTOR CO Ltd 3 Aug 1971 [2 Sept 1970] 36341/71 Heading H3A A frequency to voltage converter comprises a first capacitor C 1  connected at one terminal to a periodic signal source 14 and at the other terminal to the emitter of a first transistor Q 2 , a second capacitor C 2  parallel connected with R 9  being further connected via diode D 4  to the emitter of Q 2  and a further transistor Q 3  connected to the base of Q 2  so that the voltage applied to the base of Q 2  exceeds in absolute value the voltage across C 2 . In operation, the input signal is squared by Q 1  and charges C 2  rapidly via C 1 , the charge on C 2  decaying slowly and exponentially via R 9  so that the average value of the voltage across C 2  is indicative of the frequency of source 14. The transistor Q 2  serves to charge C 1  in the opposite direction when Q 1  is conducting with C 2  being isolated by diode D 4 . To reduce the output voltage variations dependent on the temperature variations of the transistor V be  voltages, the output across C 2  is fed back to Q 2  via an identical transistor Q 3  and the output is derived at the emitter of a further transistor Q 4 . If an output voltage inversely proportional to the frequency is required, it may be obtained across a resistor (R 11 , Fig. 2, not shown) connected between the collector of Q 3  and ground.
Patent GB-763327-A (GB)
Title: Improvements in or relating to gas silencing or sound absorbing devices
IPC: F01N1/06
Filed: 1954-12-16
Abstract: 763,327. Exhaust-silencers ; intake silencers. LEISTRITZ, H. K. Dec. 16, 1954 [Dec. 18, 1953; Dec. 28, 1953; Jan. 3, 1954; Jan. 20, 1954], No. 36475/54. Class 7 (2). In a silencer embodying at least one sounddamping unit arranged to divide a gas stream into a number of component gas streams which are separated and issue from the exit of the silencer at spaced intervals of time, the gas flow ducts 2-7 are of unequal length and extend between common inlet and exit orifices 1, 9, and the cross-sectional areas of the longer ducts are greater than those of the shorter ducts; also the cross-sectional area of the exit orifice is smaller than that of the inlet orifice. As shown in Fig. 1, the cross-sectional area of the outlet orifice is constricted by a projecting tongue 7a. The cross-sectional area of the ducts may increase from the inlet to the outlet ends thereof, and be proportional to the lengths of the ducts. In Fig. 2, two units are disposed in series, the gas entering at 10 and being subdivided by ducts 11-14 communicating with a duct 15 which in turn forms the inlet to a second system of ducts 16-19 of different cross-sections and lengths and also having different curvatures; the latter ducts connect with an outlet 20, In a further embodiment, Figs. 4 and 5 (not shown), two sound-damping units are disposed side-by-side, the ducts of each unit being interconnected. The silencer may be directly connected, or by a pipe 35, to the exhaust port of an engine, and in turn be connected to a baffle-free chamber 37, Fig. 6, having an inlet nozzle and an outlet nozzle 38, both nozzles having a cross-sectional area equal to that of the outlet of the silencer. The combination of a silencer and a baffle-free chamber may be located on the intake side of the engine.
Patent GB-430760-A (GB)
Title: Improvements in the manufacture of fingers for mowing and reaping machines
IPC: B21K19/00
Filed: 1933-12-29
Abstract: 430,760. Reaping and mowing machines. DOWNING, A. E., 35, Clive Street, and LOACH, J., 51, Margaret Street, both in West Bromwich. Dec. 29, 1933, No. 36548. [Class 6 (iii)] [See also Group XXII] A finger for a mowing or reaping machine having a recess for the usual liner, is produced in a preliminary stamping or forging operation with the walls of the recess formed completely but below their normal plane, so as to be out of the way of a milling cutter which is used to cut out the knife-slot ; the deformation may comprise stepping-down the rear of the finger or bending it down, Fig. 3, Finally, the deformed part of the finger is brought into its correct position by bending or forging.
Patent GB-1038295-A (GB)
Title: A method and device for providing, on a turning or planing tool, a swarf-guiding step having a rounded guide back
Inventor: DAVIES ARTHUR RAYMOND
IPC: F04C3/08
Filed: 1963-09-17
Abstract: 1,038,295. Grinding; electro-erosion; machine tool details. MASCHINENFABRIK VERKHEIM A.G. Sept. 17, 1963, No. 36563/63. Headings B3B, B3D, B3L and B3V. A turning or planing tool 8 is provided with a swarf-guiding step 7 having a rounded guide back 6 by effecting relative movement between the tool and a dish-shaped grinding wheel 4 or contact wheel of electro-erosion apparatus by pivoting the tool and/or the bearing or bearings 2 of the wheel about the axis of rounding of the guide back so that the effective position of the working surface of the wheel in relation to the tool moves along an arc b. The tool is clamped to a table mounted for reciprocating movement beneath the wheel which has its bearings carried at one end of an arm 1 movable about a pivot 5 by means, such as a threaded spindle or cam disc, or hydraulic, pneumatic or electrical means, acting on an arm 9 connected to the arm 1, the wheel being advanced a step following each reciprocating movement of the tool. In other embodiments, the means moving the wheel may act on the arm 1, the shaft 3 of the wheel may extend longitudinally of the arm, which may be of adjustable length, and the bearing 2 be pivotally mounted on the arm, the bearing 2 of the spindle may be stationary while the table carrying the tool is pivotable about an axis corresponding to that of the shaft 5, and the reciprocating movement may be effected by the wheel instead of the tool.
Patent GB-423127-A (GB)
Title: Improvements in traffic lane or road markers
IPC: E01F9/06
Filed: 1933-12-29
Abstract: 423,127. Road - marking studs. PURDUE RESEARCH FOUNDATION, Lafayette, Indiana, U.S.A.-(Assignees of Ross, D. E., and Meikle, G. S. ; Lafayette, Indiana, U.S.A.) Dec. 29, 1933, No. 36623. Convention date, Jan. 16. [Class 3 (ii)] [See also Group XX] A marker to be secured to the surface of a road to define a traffic lane &c., comprises a body having one or more recesses each containing a reflector to reflect back the light of approaching vehicles, the body having its exterior central portion projecting slightly above the roadway and tapering downwardly towards each end and towards each side. The marker shown comprises a metal body 1, shaped as above described, having apertures 1<a> to receive fastening-means. Recesses 1<c> are formed towards the ends of the marker and on opposite sides of the longitudinal centre line. The inner ends 1<d> of the recesses are approximately at right-angles to the said line and are formed with apertures 1<c> in which are mounted reflecting lenses R. The reflectors project into chambers in the underside of the body and are secured by plastic composition &c. C.
Patent GB-1077219-A (GB)
Title: Method of hardening wear surfaces and product
IPC: C23C8/00
Filed: 1964-09-07
Abstract: A ferrous article comprising an integrally bonded hard chromized external layer containing a chromium nitride complex layer is formed by nitriding and chromizing heat treatments.  A high carbon chrome steel is cleaned and dried at 200-250 DEG F; heated at 15-35 DEG F. for 90-100 minutes in an atmosphere of endothermic gas, raw natural gas and ammonia; quenched in oil and air cooled. It is then reheated to 325-350 DEG F; drawn to relieve stresses and chromized.  The Cr is diffused into the article from a source, a Cr hydrohalide powder pack or a Cr composition coating applied to the article.
Patent GB-1011421-A (GB)
Title: Improvements in or relating to e.h.t. circuits of television receivers
Inventor: ELLIOT ERNEST WALTER
IPC: H04N5/46
Filed: 1960-10-26
Abstract: 1,011,421. Converting. ULTRA RADIO & TELEVISION Ltd. Oct. 23, 1961 [Oct. 26, 1960], No. 36705/60. Heading H2F. The E.H.T. supply circuit for a television receiver comprises a line output transformer having a primary winding PW and an overwind OW connected to a thermionic rectifier V from which the direct current is derived, the transformer having a winding HW to supply the rectifier heater, and a choke L being included in the heater circuit to restrict the heater current if the frequency increases. Reference has been directed by the Comptroller to Specification 925,450.
Patent GB-905031-A (GB)
Title: Improvements in or relating to machines suitable for applying tape to workpieces
IPC: A43D44/00
Filed: 1958-11-17
Abstract: 905,031. Applying adhesive tape. BRITISH UNITED SHOE MACHINERY CO. Ltd. Nov. 17, 1958 [Nov. 18, 1957], No. 36843/58. Addition to 782,992. Class 73. The machine for applying adhesive tape to the back seam of a shoe upper described in the parent Specification is modified by making the trigger member 110, Fig. 1, adjustable towards or away from the nip of the feed rolls 32, 34 so that the end of the tape applied may be flush with or spaced inwardly from the trailing edge of the shoe upper as desired. It is further modified by the provision of a solenoid 75 which is actuated by an electric switch operated by the trigger member 110 when it falls off the trailing edge of the shoe upper and causes the tape to be drawn against the stationary knife 80 and thereby severed, thus obviating the necessity for a delayed action clutch and association mechanism provided in the machine of Specification 782,992. The U-shaped trigger member 110, Fig. 2, has a nose portion 108 adapted to engage the shoe upper as it is passed over the guide 82, Fig. 1, and, together with the tape 44, between the feed rolls 32, 34 which apply the tape. The trigger member 110 is secured by its upper arm 112 on the slotted end of a rod 98 with capacity for adjustment towards and away from the stationary knife 80 and the feed rolls 32, 34. The rod 98 is urged downwardly by a spring 130 and the upper end of the rod carries a finger 118 adapted to engage and press a button 120, Fig. 5 (not shown), of a micro-switch 122. When the trailing edge of the shoe upper passes under the nose 108 of the trigger member, the latter falls to the position shown in Fig. 8. This results in the operation of the switch 122, Fig. 5 (not shown), and actuation of the solenoid 75 which causes the lever 64 to rock, thus raising the bar 70 and a tape guide roll 74 mounted thereon to the position shown in Fig. 8, drawing the tape against the knife 80. The feed roll 34 may be provided with a central grooved ring of steel flanked by two rubber rings which provide frictional traction for the portions of the upper adjacent to the seam.
Patent GB-761748-A (GB)
Title: Improvements in or relating to hydrostatic levels
IPC: G01C9/22
Filed: 1954-12-22
Abstract: 761,748. Levels. SCHMIDT; C. E. Dec. 22 1954 [Dec. 23, 1953], No. 37009/54. Class 97(2) A hydrostatic level, comprises a reservoir 13 adapted to be partially filled with liquid, a length of flexible transparent tube 23 having one end open to the atmosphere and the other end communicating with the interior of the reservoir, a cylindrical container 11 surrounding the reservoir 13 and forming an annular stowage space about it, a cover 18 for the container 11 having two circular flared apertures 19, 20 located above the reservoir, the apertures having a diameter slightly less than that of tube 23 so as to form a friction fit on the tube to. hold the tube end in position to communicate with the interior of the reservoir, which is vented to the atmosphere by the other aperture. Liquid in the container 13, which may be coloured, is syphoned into tubing 23 which is adjusted to bring the level in the tubing to a mark 24, which then indicates the'level of the liquid in reservoir 13. For transport the tubing is coiled into the space between container 11 and reservoir 13, and the reservoir is closed by a tight-fitting flanged cover. The walls of the container and the reservoir may be transparent. In a modification, one .end of the tubing is connected permanently to the reservoir near the bottom, and the reservoir isclosed at the top except for a sidewaysfacing air vent which receives the free end of the tubing when it is coiled for transport.
Patent GB-507548-A (GB)
Title: Improvements in instruments for recording in connection with speed or power driven vehicles
IPC: G01P3/16
Filed: 1938-12-23
Abstract: 507,548. Speedometers; switches. RIEGGER, P. Dec. 23, 1938, No. 37486. [Class 106 (iii)] [Also in Group XXXVII] In an instrument which records the speed' of a vehicle by a stylus 4 on a rotating chart 2, a further stylus 18 is provided which contacts continuously with the chart and is moved in a direction which differs from the direction of movement of the part of the chart which it touches by a device which is operated whenever the engine exceeds its maximum permissable speed. The stylus 4 is operated, through a rack and gear wheel connection 10, 12, 14 and 15, by the movement under centrifugal force of a weight 7 carried on a shaft 6 coupled to the wheel axle of the vehicle. The stylus 18 is operated by an electromagnet 25 controlled by a snap action switch 31, 33 and 35 actuated by a similar centrifugal weight system 40 to the above driven directly by the vehicle engine through a shaft 39. In a modification the electromagnet 25 is controlled by a centrifugal switch comprising a disc 48 rotated by the engine and bearing masses mounted on pivoted levers 50 and 51 which operate switch contacts 60 and 59 which are connected by slip rings and brushes to the electromagnet 25. The disposition of the masses is stated to produce a snap action without the necessity of providing special means to this end.
Patent GB-335126-A (GB)
Title: Improved means for promoting the circulation of fluids in steam generators or the like
IPC: F22D7/02
Filed: 1929-12-10
Abstract: 335,126. Le Sueur, L. Dec. 10, 1929. Water-circulation, apparatus for promoting.- A tubular circulator 1 is provided between each furnace box 6 of a marine boiler with its upper end detachably held within the jawed ends 9 of stays 10 clipped on to stays 11 between adjacent combustion chambers 12. An inclined flat deflector plate 7 under which each tubular circulator discharges has a bracket 15 bolted to a transverse bar 16 supported from longitudinal stays 4 by clips 17 the bar being slidable, along the stays for adjustment. In the form shown a series of plates 7 extends in overlapping relation from side to side of the boiler with a slight clearance at each end. Specification 277,407 is referred to. In a modified construction for a Lancashire, boiler the tubular circulator which extends downwardly between the flues is secured to the deflector plate so that its upper end is closed in, an opening being provided in the upper part of the circulator facing the higher edge of the deflector.