baber/WOPTO huggingface dataset:
Patent GB-146592-A (GB)
Title: Improved means for raising and lowering the shares or frames of ploughs and other agricultural implements
IPC: A01B63/14
Filed: 1919-04-05
Abstract: 146,592. Ceiling's, J. M. B. April 5, 1919. Ploughs; adjusting parts of implements -In order to raise ploughs and like implements of the type in which means are provided for temporarily locking the landwheel to the cranked axle on which it is mounted so that continued forward movement of the plough may partially rotate the axle and thus raise the shares &c., the supports of the front and rear wheels are connected with the cranked axle so that they may be simultaneously raised or lowered by its movement. The land-wheel a is locked by the engagement of a toothed pawl g with a toothed wheel f. The pawl is pivoted on an extension of the crank c and is brought into engagement by pulling on a cord i. It is automatically disengaged when the frame e has been raised to its highest position by a chain r fastened to the frame r and the pawl g. Chains k, k<1> are fastened to a disk j on the cranked axle. The chain k passes round a pulley l and is connected to an arm m on the cranked axle n of the rear wheel o. The chain k<1> passes round a pulley P and is connected to the top of the standard p of the front wheel q. Movement in one direction may be prevented by a locking-pawl s under the control of the ploughman. A pivoted lever t forms an adjustable stop for controlling the depth of work. It is engaged by a projection v on the disk j.
Patent GB-672786-A (GB)
Title: Improvements in hoisting tackle for wheeled vehicles
IPC: B66C1/20
Filed: 1949-03-30
Abstract: 672,786. Slings for lifting vehicles. SCRUTTONS, Ltd., and HALLIDAY, W. G. March 8, 1950. [Mar. 30, 1949] No. 8677/49. Class 78 (iv). A sling for lifting wheeled vehicles includes a pair of frames which respectively support the front and rear wheels ; each frame comprises two longitudinal side members A, B, two end members C permanently secured to the side members, and at each end of the frame a pair of transverse bracing members D, E between which the wheels of the vehicle are positioned. One side member B of each frame is interrupted between each pair of transverse members D, E by gaps which may be closed by locking bolts F slidably mounted in the side member. The frames may be built up from tubes, or solid rods. In use the frames are suspended by shackles J secured to lugs H from a rectangular stretcher frame suspended from a crane. Finger pieces F<SP>1</SP> on the bolts F engage locking slots G when the bolts are shot and a wire holds each bolt captive. Springs may bias the bolts inwardly and suitable locking slots or catches may be provided to hold them in their open positions. The frames may be mounted on castors to facilitate their movement to engage the vehicle wheels. The members A, B may be telescopic to permit adjustment to fit vehicles of extreme width, a suitable locking device being fitted to hold the adjustment.
Patent GB-553652-A (GB)
Title: A new or improved means for attaching cushions and like articles
IPC: A47C27/00
Filed: 1942-06-24
Abstract: 553,652. Securing cushions to chairs &c. HART, H. C. June 24, 1942, No. 8685. [Class 52 (iv)] A cushion is attached to a chair or like article by a resilient band 5 passing through an elongated pocket 2 (or a pair of loops) formed by slitting the cushion cover, and the free ends of the band are passed around the back-rest posts of the chair and thence through loops 12 to snap fasteners 8.
Patent GB-1012256-A (GB)
Title: Improvements in or relating to counting circuits
IPC: H03K23/78
Filed: 1964-03-02
Abstract: 1,012,256. Electronic counters. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 2, 1964 [March 5, 1963], No. 8703/64. Heading G4A. [Also in Divisions G1 and H3] Each stage of a ring counter comprises a photo-sensitive resistor and a gas-filled diode in series, each diode being coupled optically to the photo-sensitive resistor of the next stage. Assuming that photo-sensitive resistor 2 is illuminated so that counting can take place and that diode D1 is conducting then the leading edge of a - ve pulse on lead P extinguishes D1 The trailing edge of the pulse finds LDR2 still at relatively low resistance so that D2 then fires. The pulses on lead P are produced by the oscillator of Fig. 2, the time constant of which is controlled by R-C circuit 6, 7. The effective time constant is increased at the instant that the potential on P exceeds the firing potential of the diode D2 by connecting capacitor 8 in series with 7 through diode 9. When light is removed from photo-resistor 2, Fig. 1, the count stops but the diode D which is fired remains conducting, the supply being maintained through rectifier 15 at such a potential that diode 5 cannot refire.
Patent GB-962131-A (GB)
Title: Process for the production of sterically homogeneous diene-(10,12)-ols-(1)
IPC: C07C45/29
Filed: 1961-03-09
Abstract: Sterically homogenous diene-(10,12)-ols-(1) of the general formula: ROCH2-(CH2)8-CH=CH-CH=CH-R, in which R is an aliphatic or cycloaliphatic hydrocarbon radical are obtained by reacting a decanal of formula R1-(CH2)8-CHO, in which R1 is an alkoxycarbonyl or an acyloxymethylene group, at an elevated temperature with a triaryl phosphoric carbalkoxymethylene to give a mixture of trans- and cis-dodecene-(2)-oic acid-1 alkyl esters of the general formula: R1-(CH2)8-CH=CH-COO-alkyl, separating the isomer mixture, optionally after saponification, reducing the sterically homogenous trans- or cis-compounds with an alkali metal or an alkali earth metal hydride, or by an alkali metal borohydride to the trans- or cis-dodecene-(2)-diol-(1,12) respectively, partially oxidizing the diol with a mild oxidizing agent to dodecene-(2)-ol-(12)-ol-(1), reacting this product, after acylation if desired, with a phosphorane of formula (C6H5)3P=CHR and, if necessary, saponifying the product with alkali.  The triaryl phosphine carbalkoxy methylene used may be prepared by reacting a triaryl carbalkoxy-methyl phosphonium bromide with aqueous caustic soda and the phosphoranes by reacting a triaryl phosphonium halide with a proton acceptor, e.g. an alkyl lithium, sodium acetylide, or an alkali metal or alkaline earth metal alkoxide or amide in the presence of a solvent.  Specifications 874,581 and 952,342 are referred to.
Patent GB-944007-A (GB)
Title: Improvements in or relating to brakes for vehicles
Inventor: PACKER MERVYN BRIAN
IPC: B60T8/40
Filed: 1959-03-13
Abstract: 944,007. Inertia switches. AUTOMOTIVE PRODUCTS CO. Ltd. Feb. 29, 1960 [March 13, 1959], No. 8796/59. Heading H2B. [Also in Division F2] In a vehicle braking system (Division F2), the brake applying pressure is relieved by fluid pressure means operated by a solenoid-valve which is energized when contacts 29, 31 are closed by a flywheel 25, normally rotating with a wheel-driven shaft 26, advancing along screw-thread 27 against spring 28 when deceleration of the wheel and hence shaft 26 exceeds a predetermined value.
Patent GB-287326-A (GB)
Title: Improvements in and relating to fencing standards
IPC: E04H17/10
Filed: 1927-03-31
Abstract: 287,326. Thomson, W. March 31, 1927. Fencing standards; securing fencing wires to - standards.-A U-shaped fencing standard has an arcuate web portion 1 and flanges 4, 5 which are inwardly bent towards each other at points 2, 3 intermediate the web portion 1 and the ends 6, 7 of the flanges. The ends 6, 7 are preferably inwardly curved also. The web portion 1 is formed with a series of projections 9 between which are spaces 10 in which the fencing wires 11 are supported. The wires are locked in these spaces by wire clips, Fig. 6, which are bent round and across the web portion 1 and the wires 11 and whose extremities 13, 14 are hooked round the rear ends of the flanges of the standard. The standard has a pointed end to enter the ground.
Patent GB-328395-A (GB)
Title: Improvements in and relating to ambulance stretchers
IPC: A61G1/044
Filed: 1929-03-19
Abstract: 328,395. Kenny, E. March 19, 1929. Litters.-In an ambulance stretcher, three basic transverse lengths 1, 2, 3 of strong flexible material, such as canvas, are provided, each with D-links C at the corners for attachment to the sides of the stretcher A and having narrow cross-bands D of similar material stitched to their edges. Under these bands D pass wide or narrow loose bands la, 2a, 3a used respectively as abdominal, knee and ankle bandages, and provided at their ends with straps J. E and buckles K, the ends of the narrow bands 2a, 3a being tapered and the wide band 1a having a length of material 1c stitched to its centre which is provided with a pocket 1b. Adjustable straps L join the bands 2a, 3a and the band 3a is connected to the end of the stretcher by straps M.
Patent GB-375840-A (GB)
Title: Improved process for the production of a solution of copper sulphate
IPC: C01G3/10
Filed: 1931-03-23
Abstract: A solution of copper sulphate is obtained by treating copper moistened with sulphuric acid with air at 0-100 DEG  C., for example for a period of from 15 minutes to 24 hours, and dissolving the copper oxide thus formed in an aqueous solution of sulphuric acid. The operations of oxidation and solution may be repeated.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the initial treatment of the copper with air in the absence of sulphuric acid at temperatures up to 260 DEG  C., and also simultaneous treatment with air and sulphuric acid.  This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 11633/98, [Class 1, Acids, alkalies, &c.], 9239/05, [Class 46, Filtering &c.], and 12812/08, [Class 1, Acids, alkalies, &c.].
Patent GB-575130-A (GB)
Title: Improvements in spray metal coated, metal-surfaced articles
IPC: C23C4/02
Filed: 1943-06-04
Abstract: 575,130. Coating metals. METALLIZ. ING ENGINEERING CO., Inc. June 4, 1943, No. 8986. Convention date, Aug. 6, 1942. Drawings to Specification. [Class 82 (ii)] [Also in Group XXII] A spray-metal coated, metal surfaced article comprises an article having a metal surface, a layer of spray metal and intermediate the metal surface and the coating fused metal deposited upon and integrally bonded to the surface and characterised by an irregularly pitted surface frozen from semi-liquid state with a multitude of projections with overhanging edges and minute craters with overhanging edges, the majority of the projections and craters interlocking with the sprayed particles and being of a size and spacing substantially of the same size as that of the sprayed particles. Some of the projections may be of a size of a higher order of magnitude than the other projections and the craters which interlock with the sprayed material. The intermediate coating metal may be selected from the group consisting of nickel, bronze and silver. The bonding may be carried out by the processes described in Specifications 575,128 and 575,129.
Patent GB-925315-A (GB)
Title: Improvements in or relating to gas turbine engines
Inventor: ELTIS ERNEST
IPC: F04D27/02
Filed: 1960-03-14
Abstract: 925,315. Gas turbine Jet propulsion plant; axial-flow compressors. ROLLS-ROYCE Ltd. March 8, 1961 [March 14, 1960], No. 9010/60. Classes 110 (1) and 110 (3). A by-pass engine comprising means to bleed compressed air from the engine downstream of the low pressure compressor including a valve for controlling the bleed flow, has the highpressure compressor designed so that at maximum rotational and maximum bleed it does not choke, and means to vary the flow in the by-pass duct to maintain the inlet pressure of the highpressure compressor as the bleed flow is varied. A by-pass engine is one in which compressed air from a compressor of the engine is divided into two streams, the first stream is further compressed in a high-pressure compressor, heated and then passed through a turbine to an exhaust assembly and the second stream is conveyed by a by-pass duct to the exhaust assembly without passing through the heater and turbine. A bypass engine, Fig. 1, comprises a low-pressure compressor 10, a high-pressure compressor 11, combustion equipment 12, a high-pressure turbine 13 driving the high-pressure compressor and a low-pressure turbine driving the lowpressure compressor. A by-pass duct 16 conveys a part of the air discharged from the lowpressure compressor to an annular nozzle 18 surrounding a central nozzle 17 through which the exhaust gases from the turbine 15 are discharged. Air is tapped off from a point downstream of the low-pressure compressor, in this case from an intermediate stage of the highpressure compressor, by a duct 19 fitted with a control valve 20. This valve is coupled for operation with flaps 21 which adjust the area of the nozzle 18 so that as valve 20 is opened the flaps 21 reduce the area of the nozzle 18. The effective area of the intake of the high-pressure compressor is made larger than usual to prevent choking of this compressor at maximum rotational speed and maximum bleed. In a modification, a further bleed valve is provided on the high-pressure compressor for improving the handling characteristics at rotational speeds other than the designed rotational speed. Modifications are also described in which the by-pass air is led into the turbine exhaust duct. In this case, the control valve may be placed at the junction of the by-pass and main ducts or at the discharge of the main duct. In another modification the inlet of the high-pressure compressor is provided with adjustable guide vanes controlled by a rotational speed governor which is put into operation at low speeds when a large bleed flow is required.
Patent GB-221444-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/16
Filed: 1924-04-09
Abstract: 221,444. Everett, J. H. D. April 9, 1924. Razors, safety. In a safety razor in which a blade is held so as to present an outwardly bowed cutting edge, the handle has means engaging notches in the ends of the blade and means on the outwardly bowed guard engages the underside of the blade to prevent it bending on to the teeth of the guard. As shown, the holder is formed from a blank, Fig. 1, doubled to form a handle 10, Fig. 3, and curved spring arms 11 connecting the bowed guard 13. The blade 16, Fig. 6, is retained in the bowed condition by a reinforcing jacket 19 extending over the back edge and both faces of the blade and having lugs 22 bent over adjacent the edges of the notches 18, the blade is mounted in the holder by bending apart the arms 11 and seating lugs 15 on jaws 12 on the arms in the notches 18 and between the lugs 22 of the jacket, an elongated tooth 23 and projections 23<1> on the guard 13 spacing the blade above the teeth 14.
Patent GB-700564-A (GB)
Title: Improvements in or relating to turbo-jet engines
Inventor: BLACKWELL BASIL DAVENPORT
IPC: F02C7/04
Filed: 1951-04-18
Abstract: 700,564. Gas turbine, jet propulsion plant. BRISTOL AEROPLANE CO., Ltd. April 3, 1952 [April 18, 1951], No. 9108/51. Class 110 (3) In a turbo-jet engine comprising high- and lowpressure compressors 3, 12 driven by high- and lowpressure gas turbines 6, 10 respectively, the first row of rotor blades of the lowpressure compressor has a hub-tip ratio between 0.4 and 0.5, the tip diameter of the low-pressure turbine is equal to or up to 10 per cent greater than that of the said compressor blade row and the power absorbed by the high-pressure compressor is from 2 to 25 times that absorbed by the low-pressure compressor. The flow path through the compressor 12, the combustion chamber 4 and the turbine blades 6, 9 and 10 tapering symmetrically on either, side of the mean diameters thereof and the flow path through the nozzle guide blades 7 is defined by parallel walls. Cooling air from the bearing housings pass through hollow bolts into the space 22 between the blades 6, 10 and hence through the stator blades 9 and passages 23-26 into the jet propulsion nozzle. Labyrinth seals 27 are disposed as shown and the air jacketed portion of the combustion chamber overlaps the turbine casing 17 to permit same to be cooled. The turbine blades 6, 10 have shrouds 19 formed with rims 20 which, together with cylindrical surfaces 21 formed on the casing 17 constitute a gas seal.
Patent GB-539609-A (GB)
Title: Improvements in or relating to feed mechanisms for presses and the like
IPC: B65H11/00
Filed: 1940-05-23
Abstract: 539,609. Feeding sheets. NUELL, A. P., and GOLDING, W. F. May 23, 1940, No. 9117. [Class 100 (i)] Sheets are fed to a press from a fixed feed table 1 of concave form on which the work is laid by hand with the aid of adjustable gauges 13 for the rear edges of the sheets and side guides 16. The sheets are fed to the press by a. reciprocating carriage 8 fitted with pusher fingers 7 adjustable in height and formed with forward projections 10 beneath which the sheets are placed by hand. The table 1 is inclined slightly so that as the fingers 7 move forwards the projections 10 grip the sheets until they leave the table, and fall into correct position on a die arranged at a lower level than the table. The carriage 8 is formed of a transverse bar 17 connected by hangers 18 to rack members 19 moving on tracks 9. The racks are reciprocated by a pinion oscillated by a rack reciprocated by cam mechanism from the driving-shaft of the press.
Patent GB-644999-A (GB)
Title: Improvements in and relating to time base circuits for television receivers
IPC: H03K4/43
Filed: 1947-04-03
Abstract: 644,999. Sawtooth generating circuits. COSSOR, Ltd., A. C., and WYNN, A. H. A. April 3, 1947, No. 9167. [Class 40 (vi)] In an electromagnetic time base for a television receiver, a capacitor C5 connected between the anode and cathode of a valve V2 is slowly charged over resistor R8 when the valve is non-conducting to cause valve V3 to pass an increasing anode current to supply the frame coils connected at terminals 14, 15. To provide the fly-back the output of valve V3 is fed over low-pass filter L1 to the input of valve V2 which is rendered conducting at the termination of each sweep to discharge capacitor C5, the filter preventing line pulses, picked up by the frame coils, from triggering the time base. The scan is linearized by feeding back the potential developed across resistor R13 over capacitor C9 and R10 having the same time constant as R8C5. The circuit may be synchronized by pulses applied to the grid of valve V2. In a modification, Fig. 2 (not shown), the cathode of valve V2 is earthed, negative feedback being applied to the lower plate of capacitor C5.
Patent GB-289247-A (GB)
Title: Improvements in or relating to road vehicles
IPC: B60G5/047
Filed: 1927-08-23
Abstract: 289,247. Sinclair, J., Smith, C. H., and Smith, L., (trading as Smith, C. H. & L. 0.). Aug. 23, 1927. Springs, arrangement of; equalizing load on wheels and springs; axle attachments.- In a road vehicle having more than one non-steering axle suspension springs inter-connected by equalizing levers, one or more ball-joints are interposed between the springs and the levers to obviate twisting of the springs when the axles are tilted laterally. The invention is described in connection with a suspension comprising springs 3, 3<a> connected respectively above and below the axles 1, 2 pivoted at their forward ends to brackets 5, 6 on the frame, and having their rear ends connected by shackles 8 to the ends of a lever 7 pivoted at 13 to the frame. Each shackle 8, Fig. 7, has one end 8<a> pivotally mounted on an elliptical or barrel-shaped pin 25 carried by the lever 7, while the other end 8b is forked and carries a similar pin 25a engaging the member 3b on the end of the spring. The part 8<a> of the shackle and the spring member 3<b> are rounded to permit free movement thereof between the plates 26 on the lever and between the arms of the fork 8<b>. The connections between the springs and the brackets 5, 6 may be ball-points. Each lever 7 may be of H-section having its sides closed by plates 7a, Fig. 4, and the pivot 13, Fig. 3, may engage a sleeve 15 having a flange 16 secured to the lever. The bearing may be lubricated from a pipe 19 through a duct 20 and spiral grooves in the bearing surfaces of the pivot 13 and flanges 14, 16. A ball-bearing may be arranged between the flanges 14, 16, and a roller-bearing on the pivot 13. The springs at one of the ends of the axles may be mounted to rotate on the axle, i.e. the near side spring on one axle and the off-side spring on the other axle may be so mounted. The brakes on the axles 1, 2 may be of the band type simultaneously operable from a control rod 12 through levers 10 and flexible members 11.
Patent GB-675136-A (GB)
Title: Improvements in and relating to magnetic sound recording or reproducing heads
Inventor: LEMONNE JACQUES RENE
IPC: G11B5/127
Filed: 1950-04-17
Abstract: 675,136. Magnetic recording and reproducing Apparatus. PROCEDES MAGNETIQUES FRANCAIS. April 17, 1950. No. 9350/50. Drawings to Specification. Class 40 (ii). In a transducer for magnetic wire or tape, the pole-pieces are reduced in thickness at the ends and overlap one another in a direction perpendicular to the direction of travel of the wire or tape, a non-magnetic gap being formed by the introduction of a thin layer of non- magnetic material having a thickness smaller than the smallest wavelength to be recorded. V-notches are provided in each pole-piece to guide a wire record
Patent GB-613813-A (GB)
Title: Improvements relating to ball and float valves
IPC: F16K31/26
Filed: 1945-04-16
Abstract: 613,813. Ball-and-float valves. BARKER, P. R. April 16, 1945, No. 9405. [Class 135] A ball- or float-valve comprises a slidable member within which is a washer holder or carrier bearing two washers, either of which may be presented to a delivery orifice in the valve casing by reversal of the holder or carrier. As applied to a cistern supply valve, a slidable member 12 in the valve casing 1 is operated by a float lever pivoted on a bolt or a split pin 15 and engaging a slot or recess 13. The washer holder 17 which may be of metal, " plastic," or other material is recessed on each face to receive the washers 18 and is held on. the slidable member 12 by a removable screwed sleeve 16 with an inturned flange at one end. A valve 19 on the inlet side of the partition 8 in which the delivery orifice 9 is formed is normally held open against the inlet pressure by its stem 20 engaging the operative valve washer, but when the member 12 is moved out beyond its normal range, the valve 19 closes under inlet pressure. The valve closure face 21 may be conical, part spherical or plane.
Patent GB-1129138-A (GB)
Title: Processes for the manufacture of polymeric compounds containing nitrogen, silicon and fluorine
Inventor: AYLETT BERNARD JOHN
IPC: C08G77/62
Filed: 1965-03-05
Abstract: 1,129,138. Organosilicon polymers. MINISTER OF TECHNOLOGY. 6 June, 1966 [5 March, 1965], No. 9445/65. Addition to 1,041,791. Heading C3T. A silicon-nitrogen polymer is made by reacting, in an anhydrous and inert environment and at - 50‹ to 100‹ C., an organo-bis (trifluorosilyl)-amine, (SiF 3 ) 2 NR, where R is an alkyl radical of 1 to 5 C atoms or an aryl radical of not more than 7 C atoms, and a base catalyst which is an electron pair donor, whereby the amine disproportionates to yield SiF 4  and a polymer having repeating units of the formula -SiF 2 -NR-. Catalysts specified are methylamine, pyridine, trimethylamine and dimethylformamide. In examples, bis(trifluorosilyl) methylamine and (1) pyridine, or (2) methylamine, were sealed in a tube and allowed to stand at room temperature until a white precipitate formed, and after 4 to 6 weeks the tube was frozen in liquid N 2  and opened to a vacuum system and volatiles evolved; on warming the residue yielded a sublimate of (1) SiF 4 .2C 5 H 5 N; or (2) SiF 4 .2(MeNH 2 ) and a residue of the polymer.