baber/WOPTO huggingface dataset:
Patent GB-1023203-A (GB)
Title: Propylamine derivatives
IPC: A61K31/475
Filed: 1963-08-14
Abstract: The invention comprises compounds of formula <FORM:1023203/C2/1> wherein R is a nitro, acylamino, amino or dialkylamino group and A is a cycloalkyl group optionally fused to a benzene ring and/or substituted by a phenyl group, or is a group <FORM:1023203/C2/2> wherein n is 0, 1 or 2, X is a hydrogen atom or a hydroxy or alkoxy group, Y is a hydrogen atom or an alkoxy group and R3 is a C1- 4 alkyl group acid addition salts thereof, and their preparation by reaction of a compound of formula <FORM:1023203/C2/3> with the appropriate ketone, and reducing the imine formed, with optional simultaneous hydrolysis of an acylamino group R.  The compounds of the invention have pharmaceutical activity (see Division A5).ALSO:Pharmaceutical compositions having coronary-dilatant, anti-tussive and/or hypotensive activity comprise a compound of formula <FORM:1023203/A5-A6/1> wherein R is an acylamino, nitro, amino or dialkylamino group and A is a cycloalkyl group optionally fused to a benzene ring and/or substituted by a phenyl group, or is a group <FORM:1023203/A5-A6/2> wherein n is 0, 1 or 2, X is a hydrogen atom or a hydroxy or alkoxy group, Y is a hydrogen atom or on alkoxy group, and R3 is a C1-4 alkyl group, or an acid addition salt, in combination with a carrier, for example in forms suitable for oral, parenteral or rectal administration, such as tablets, coated pills, powders, granules, capsules, solutions, suspensions or emulsions.  An exemplified composition also contains reserpine.
Patent GB-618172-A (GB)
Title: Improvements in transmission belt and drive
IPC: F16G1/28
Filed: 1946-10-30
Abstract: 618,172. Positive driving belts. UNITED STATES RUBBER CO. Oct. 30, 1946, No. 32219. Convention date, Dec. 12, 1945. [Class 80 (i)] [Also in Group V] A positive driving belt 22 of soft vulcanized rubber or the like has a strain resisting member 18 composed of a plurality of turns of a continuous wire 17 lying approximately in the dedendum line of the teeth 13. A layer of rubberized fabric 23 covers the. face of the belt.
Patent GB-1432395-A (GB)
Title: Steering actuated motor displacement control valve
IPC: B60W10/04
Filed: 1973-07-06
Abstract: 1432395 Hydrostatic transmission control CATERPILLAR TRACTOR CO 6 July 1973 [10 July 1972] 32231/73 Heading F2W In a tractor hydrostatic transmission system wherein two hydrostatic transmissions 14, 16; 22, 24 drive tracks or wheels on opposite sides of the vehicle, a valve 71 responsive to a ratio control pressure 50 and to a steering control pressure 72 overrides the normal ratio control to limit vehicle speed during turning. Each transmission has a variable displacement pump 14, 22 in closed circuit with a variable displacement motor 16, 24. The displacements of the pumps and motors are controlled by follow-up servomotors 30, 32, 38, 40 having control valves 31, 33, 37, 39. A spring centered double acting fluid motor 35 acts through a linkage 57... 61 to effect equal displacement changes in the pumps 14, 22 and a fluid motor 46 acts through a linkage 42, 44 to effect equal displacement changes in the motors 16, 24 for ratio control whilst fluid motors 34, 36 effect differential pump displacement changes for steering purposes. Ratio control pressure transmitted through a line 50 to the fluid motor 46 which controls motor displacement is additionally transmitted through a line 77 and duct 97 to a chamber 94 of the valve 71 wherein it acts on a valve spool 92. The steering control pressure 62 or 63 to the fluid motor 34 or 36 is transmitted through a shuttle valve 73, line 72, past a valve spool 84, and through duct 86 to the upper end of the valve spool 92. When the combined ratio control pressure and steering control pressure acting on the spool 92 exceeds the force of a spring 93 the spool 92 moves down to interconnect lines 76, 77 leading to opposite sides of a piston 47 of the fluid motor 46 whereupon the piston 47 moves right to increase motor displacement and reduce vehicle speed. When the steering control pressure exceeds a predetermined value a second valve spool 84 moves down to cut off the supply of steering control pressure to the valve spool 92 and thus limit the override effect of the valve 71. Valves 51 in the control lines to the fluid motor 46 smooth operation of the latter.
Patent GB-192240-A (GB)
Title: A new or improved haulage chain for conveying the vehicles or trucks in tunnel ovens or kilns
IPC: F27B9/24
Filed: 1921-12-02
Abstract: 192,240. Jones, W. C. Dec. 2, 1921. Charging and discharging.-A haulage chain for conveying trucks in kilns is composed of side plates a<1> with rollers f and has at intervals bossed links a<3> supporting outer rollers f<2> in alignment with a central roller. The rollers f<2> engage the arms e<2> of a U-shaped bracket e fastened to each truck.
Patent GB-444467-A (GB)
Title: Improved wardrobe hook
IPC: A47G25/06
Filed: 1935-11-21
Abstract: 444,467. Hooks. FEAKES, E. P., 134, Woolwich Road, Abbey Wood, London. Nov. 21, 1935, No. 32303. [Class 89 (ii)] A hook B is formed from sheet metal and has integral prongs A cut from the hook body, bent back and twisted.
Patent GB-160288-A (GB)
Title: An improved educational appliance
IPC: G09B1/24
Filed: 1919-12-24
Abstract: 160,288. Stoloff, W. Dec. 24, 1919. Charts and diagrams.-In educational appliances of the kind in which shutters are provided to cover part of a sheet, so that only the letters or the like to be studied are visible, the shutters are all formed of the roller-shutter type. Two sheets U, V are adapted to be wound on rollers operated by handles O<1>, P<1>, and Q<1>, R<1> respectively and mounted in the rear half B of a cabinet so that they are visible through openings E, F respectively in the front half A, which is hinged to the part B. Guide-rods for the sheets are also provided in the rear half td hold the sheets near to the openings. The opening E is adapted to be closed by shutters G, G, J, and the lower opening F by shutters L, M, N, all formed of a number of rigid slats secured to a canvas backing, and guided at their ends in spiral_grooves. The sheets are detachably connected to the rollers by means of a loop on the sheet engaging a rotatably mounted cross-bar on the roller, or the loop is passed through a, slot in the roller and a bar inserted therein.
Patent GB-338322-A (GB)
Title: Improvements in steam generators
IPC: F22B19/00
Filed: 1929-10-24
Abstract: 338,322. Babcock & Wilcox, Ltd., (Babcock & Wilcox Co.). Oct. 24, 1929. Water-tube boilers.-Boiler plant comprising a furnace wall tube boiler and a convection-heated boiler arranged above it is started up whilst feed is supplied to the steam and water drum 2 of the convection-heated boiler, valved pipes 10, 34, connecting the drum with the wall tube boiler being open so that the wall tube, boiler is flooded. Circulation proceeds upwardly through the wall tubes and through a bank of tubes 25<1> connecting drums 22, 25 at front and rear of the furnace. top, these drums also being connected by return tubes near their ends located outside the furnace. When the working pressure is approached the valves in pipes 10, 34 are closed, and valves in a downcomer pipe 40 from drum 22 and in a pipe 31 connecting the upper portions of drums 22, 2 a.re opened, feed now being supplied to drum 25 in addition to drum 2, the two boilers having different water levels and separate circulations.
Patent GB-488352-A (GB)
Title: Improved devices comprising at least one super-pressure mercury vapour discharge tube
IPC: H01J61/82
Filed: 1937-11-24
Abstract: 488,352. Glass manufacture. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Nov. 24, 1937, No. 32408. Convention date, Nov. 27, 1936. Drawings to Specification. [Class 56] [Also in Groups XL and XI] A glass absorbing all radiations below 4500Š contains SiO2 64À4 per cent, Na2O 13À9 per cent, PbO 15À1 per cent, ZnO 2À3 per cent, BaO 4À3 per cent, and is coloured yellow by addition of 0À5 per cent lead chromate.
Patent GB-1026997-A (GB)
Title: Electromagnetic device
IPC: G04F3/08
Filed: 1964-08-10
Abstract: 1,026,997. Time-alarm signals. INTERNATIONAL REGISTER CO. Aug. 10,1964 [Aug. 12, 1963], No. 32536/64. Heading G3T. [Also in Division G5] The Specification describes a combined timer and buzzer for an electric cooker in which the timer motor field yoke is used to vibrate a pivoted hammer. Fig. 3 shows the timing motor 29 mounted on a rear plate 19 itself attached to a front plate 13. The motor carries a gear 28 which meshes with an interrupted gear 27 mounted on the same shaft as a cam 31. An L shaped member 47, 48 pivoted near the end of arm 48, carries near its other end a hammer 40 which approaches the motor yoke sufficiently to buzz when a follower 37 mounted on it drops into a deep recess in the cam thus allowing the L shaped lever to pivot about a stud 57 parallel to its own plane. The L shaped lever also carries a dependent tail (Fig. 5) which contacts an adjusting screw to limit the hammer travel. A spring is provided to bias the hammer towards the motor. In use a knob 20 is used to set the interrupted gear and, at the same time, a scale visible from the front of the timer to the appropriate time interval. The motor gear 27 then no longer engages the interuption in gear 27 so that it drives it until a follower 37 drops into a deep recess 34 in the cam allowing the buzzer to sound, and the gear 28 again enters the interrupted part of gear 27 so that the drive ceases. The gear is then again rotated by the knob so that follower 37 rests in a shallow recess 32 in the cam and the buzzer no longer sounds.
Patent GB-356558-A (GB)
Title: Improvements relating to concrete mixing machines and the like
IPC: B28C5/08
Filed: 1930-10-29
Abstract: 356,558. Mixing-machines. LANGFORD, H., 96, Plymouth Place, Leamington Spa, and WINGET, Ltd., The Cape, Warwick. Oct. 29, 1930, No. 32553. [Class 86.] The frames of concrete &c. mixing-machines are made tubular to facilitate cleaning and minimise caking with mud &c. In one form, a main tube 3 is supported at one end by road wheels 2 and at the other by legs 19. The engine 13 is carried on cross members 15, and the mixing drum 8, which is of the conical, tilting type is supported in bearings 7, 16. Strengthening struts 4, 9, 10, 23 are provided, and a towing attachment comprises a tube 25 telescopically mounted in the main tube 3. In another form, a rectangular frame is mounted on four wheels and has a triangular structure at each end, cross members being provided. The engine is mounted across the frame at one end, the drum being mounted between the triangular structures. A charging-skip and water container are mounted on the frame.
Patent GB-879338-A (GB)
Title: Grass cutter
IPC: A01D7/10
Filed: 1958-10-13
Abstract: 879,338. Grass cutters. PAGE, W. J. Oct. 12, 1959 [Oct. 13, 1958], No. 32624/58. Class 6(2). A grass cutter for attachment to a tined hand tool such as a rake, comprising a blade 1 fitted between two plates 2 and 3, and a backing member 5, all held together by wing nuts 4. The leading edge of the plate 3 is bent through a right angle and formed with recesses 8. In order to attach the cutter to the tool, the work head of tool is placed between the member 5 and plate 3 so that its tines engage in the recesses 8 and the wing nuts are tightened. The attachment also comprises a roller 6 mounted between lugs on either the plate 3 or blade 1, for controlling the depth of cut of the blade, and facilitating movement of the device along the gound.
Patent GB-281714-A (GB)
Title: Cock for petrol and similar liquids
IPC: F16K5/16
Filed: 1927-12-03
Abstract: 281,714. Christensen, E. A. Dec. 3, 1926, [Convention date]. Wedging or jamming.-To prevent binding, in plug cocks or valves for use with petrol &c., the plug member 2 is formed separately from the operating spindle 4 and, is connected thereto by one or more links 9 whereby on rotation it is lifted from its seating. Inward movement of the spindle 4 may be prevented by a thrust bearing member 11, or a compression spring 7 may be inserted between the plug and a head 5 formed on or secured to the spindle. The plug may beforced into its seating by the action of the spring or by reverse rotation of the spindle.
Patent GB-461155-A (GB)
Title: Improvements in carrier bags
IPC: B65D33/12
Filed: 1935-11-26
Abstract: 461,155. Carrier bags. KARRIER PAPER BAG CO. (STOCKPORT), Ltd., and WOOD, H. Nov. 26, 1935, No. 32701. [Class 133] A handle for a carrier bag is provided centrally of its length with a transverse hole a through which one of the carrying loops is threaded, and with a circumferential or part-circumferential groove or depression a<1> in which the other loop is temporarily disposed. The groove a<1> may be enlarged inwardly in key-hole fashion.
Patent GB-1308375-A (GB)
Title: Gas-operated firearm
IPC: F41A19/03
Filed: 1970-07-07
Abstract: 1308375 Valves WERKZEUGMASCHINENFABRIK OERLIKON BUHRLE AG 7 July 1969 [11 July 1969] 32760/70 Heading F2V [Also in Division F3] In a gas operated firearm (see Divisions F3- F4) a firing rate regulator is provided. The regulator comprises a piston 40 movable in a bore of a casing 2 and having an annular groove 45, the casing being provided with ducts 31 communicating at one end with the bore opposite the annular groove and at the other end with the atmosphere and a gas channel 4, 76, 75, 22, 23 communicating with the bore adjacent the annular groove. The arrangement is such that the position of a flank of the annular groove determines the cross-sectional area of flow between the gas channel and the ducts 31. The piston 40 is biased on one side by a spring 39 and on the other side by a liquid 38 in a container 33, the liquid and the container having different coefficients of thermal expansion. The liquid may be mercury and acts on the piston 40 through a plunger 37.
Patent GB-792900-A (GB)
Title: Side dumping loader
IPC: E02F3/345
Filed: 1956-10-29
Abstract: 792,900. Shovelling machines. CATERPILLAR TRACTOR CO. Oct. 29, 1956 [Aug. 2, 1956], No. 32875/56. Class 68(1) A locking means securing a side dumping bucket 18 of a shovelling machine to a cradle 15 on a boom is freed due to a lost motion connection between a jack 19 and the cradle 15 on the jack tipping the bucket 18 sideways about a pivot 30 on the cradle. The lost motion connection comprises pivot pin 21, and slot 22 in bracket 23. A striker 24 forces the spring- biased pin 26 mounted on the bucket 18 out of a recess 28 in the bracket 23 on initial movement of the jack. A camoperated linkage 33-38 engaging a cam rail 40 on the bucket causes pivoting of the end plate 32 of the bucket to an open or closed position depending on the position of the bucket.
Patent GB-307385-A (GB)
Title: Improvements in or relating to electric switches suitable for use in controlling thetransmission of signalling or operating currents in an electrical remote control system
IPC: H02J13/00
Filed: 1927-12-06
Abstract: 307,385. Reyrolle & Co., Ltd., A., and King, O. C. F. Dec. 6, 1927. Drawings to Specification. Selective distant control systems.-The Specification describes the system forming the subjectmatter of Fig. 28 of Specification 307,379 and refers also to Specification 307,381 and 307,383.
Patent GB-655318-A (GB)
Title: Apparatus for examination of materials by means of ultra-sonic waves
Inventor: MEUNIER MARCEL
IPC: G01N29/24
Filed: 1947-12-15
Abstract: 655,318. Supersonic inspection devices. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. Dec. 15, 1947, No. 32956. Convention date, Dec. 16, 1946. [Class 118 (ii)] [Also in Group XXXIX] In a system for testing a sheet of material M for the presence of internal defects in which the intensity of a beam of continuous supersonic waves transmitted through the material is measured, the beam is incident on the near surface of the material at an oblique angle so that any waves reflected by that surface are directed away from the transmitting transducer, thus preventing the formation of standing waves between the transducer and the surface. The emergent beam is at an oblique angle to the far surface of the material so that any waves reflected by the receiving transducer and again reflected at the far surface will be directed away from the receiving transducer thus preventing multiple reflections between the transducer and the surface. As shown, the transmitting and receiving transducers DE and DR comprise piezo-electric crystals Q mounted at the closed ends of tubular holders S lined with absorbent material G, e.g. felt, the plane of the aperture in the open end of each holder being inclined to the longitudinal axis of the holder. The transmitting crystal is preferably excited at its resonant frequency and the apparatus may be immersed in liquid or the holders only may be filled with liquid as described in Specification 613,239. The Specification refers to a known method of avoiding standing waves by cyclically varying the frequency of the waves. Specification 615,684 also is referred to.
Patent GB-1515206-A (GB)
Title: Process and apparatus for the automatic inspection of patterns
IPC: H05K13/08
Filed: 1976-08-09
Abstract: 1515206 Testing printed circuit boards COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL SA 9 Aug 1976 [13 Aug 1975] 33071/76 Heading G1U A printed circuit board under test is compared with a standard board by synchronously scanning, on a point-by-point basis, each board, using photodiode cameras, and by comparing the electric signals produced. The co-ordinates of any point at which disagreement is detected can be printed, and the point may be marked on the board under test by a blob of ink. As described each camera consists essentially of a linear strip of photodiodes, a strip of 16 diodes being used in the preferred embodiment. Each strip, or row, of diodes is moved over its associated circuit board, the two boards 10, 11, Fig. 4, being fixed to a frame 7, continuously in a direction dlo (the vertical direction in Fig. 4) normal to the length of the strip, and in short steps dla at the end of each longitudinal sweep. As the diodes are swept over the boards, their outputs are sequentially and cyclically sensed, the result being that the boards are effectively scanned by a plurality of narrow tv-type rasters. Each diode, when sensed, produces a voltage having one of three levels: either a high level for a hole through the board, see Fig. 2; or a centre level for the board itself, or a low level for a conductive strip on the board. Figure 2 shows a scan along a line WZ which goes over a fault 30 in the board 11  under test. The diode output signals are appropriately smoothed and compared, any disagreement larger than a preset minimum causing print out of the co-ordinates of the fault. A block diagram of a suitable scanning circuit is described, Fig. 6 (not shown), with a sketch of suitable apparatus on which to mount the cameras and the boards under test, Fig. 1 (not shown).
Patent GB-664815-A (GB)
Title: Process of making vitamin a and related compounds
Filed: 1947-12-16
Abstract: Vitamin A represented as <FORM:0664815/IV (b)/1> may be obtained by condensing b -ionone represented as <FORM:0664815/IV (b)/2> with ethyl chloroacetate to produce <FORM:0664815/IV (b)/3> which is saponified and the resulting glycidic acid decarboxylated to produce <FORM:0664815/IV (b)/4> which is condensed with sodium or lithium acetylides in liquid ammonia to produce <FORM:0664815/IV (b)/5> which is dehydrated or dehydrobrominated to produce <FORM:0664815/IV (b)/6> which is Grignardized and condensed with methyl vinyl ketone to produce <FORM:0664815/IV (b)/7> which is partially hydrogenated with a palladium black catalyst to produce <FORM:0664815/IV (b)/8> which is treated with acetic anhydride to produce the acetic ester of vitamin A and on saponification the vitamin itself. Alternatively the synthesis may be effected by treating methyl vinyl ketone with sodium or lithium acetylide to produce <FORM:0664815/IV (b)/9> which is Grignardized and condensed with compound IV to produce <FORM:0664815/IV (b)/100> which is partially reduced to produce <FORM:0664815/IV (b)/111> which on bromination yields <FORM:0664815/IV (b)/122> and on saponification the vitamin itself. Various modifications are described for the preparation of the intermediates.  Detailed examples are given.  Samples have been furnished under Sect. 2 (5) of compounds XII and XIV.
Patent GB-670259-A (GB)
Title: Improvements to velocity modulation tubes
IPC: H01J25/10
Filed: 1948-12-24
Abstract: 670,259. Velocity-modulated tubes. STANDARD TELEPHONES & CABLES, Ltd. Dec. 24, 1948 [Dec. 31, 1947]. No. 33226/47. Class 39 (i). [Also in Group XL(c)] Background noise in a velocity modulation amplifier is reduced by velocity modulating the electron beam at a pair of spaced apart regions successively traversed by the electron beam, the said regions being each defined by a gap in a transmission line or cavity resonator, the two gaps being so connected by a feed-back transmission line that the phase delay from one gap to the other along the line is one or a multiple of a complete period of oscillation of the electromagnetic waves modulating the said beam, said waves being fed into the said line at the electrical mid-point between the gaps and the said gaps being separated by a distance such that the transit time of the electrons of the beam flowing from one gap to the other is one or an odd multiple of half a period of the said oscillation. In the embodiment shown, the main amplifier tube comprises a cathode 16 and concentrating electrode 17 generating an electron beam 18 which flows through a double resonator 19, comprising two resonant cavities 20 and 21, and a catcher resonator 22 to a collector electrode 23. An auxiliary low gain amplifier tube comprises a cathode 24, concentrating electrode 25, modulation resonator 26, catcher resonator 27 and collector electrode 28. The catcher resonator 27 forms a coupling resonator and is connected by two coaxial lines 29 and 30 to the respective resonant cavities of the input resonator 19. The length of the coaxial lines is such that the above-mentioned conditions are satisfied. The low level signal to be amplified is applied to the modulation resonator 26 of the auxiliary tube and the amplified high frequency energy is picked up inside the catcher resonator 22 of the main amplifier tube.
Patent GB-173406-A (GB)
Title: An appliance for facilitating the folding of piece goods
IPC: B65H45/101
Filed: 1920-11-25
Abstract: 173,406. Bagnall, T. E., and Bagnall, T. E. Nov. 25, 1920. Bolts and rolls of fabric; folding transversely; folding in more than one direction.-Apparatus for folding fabrics in steps in " Creafold " form comprises a supported cross-bar b, Figs. 1 and 3, upon which needle-carriers c are secured at the required intervals, an adjustable peak board e with clamping-devices e', e<2> to form a peak in one of the folds, and an adjustable rod i over which the material can be folded longitudinally and removed with the peak board. In use, the end of the fabric is suspended by its corner from the needle No. 1 and then carried to the needle No. 3, back to No. 1, and then to No. 2 and No. 6, and back to No. 2 and No. 1, as shown in Fig. 4. The fold between the needles No. 2 and No. 6 is then folded over the peak board e, the folded portions being secured by spring clips e<1>, e<2>. The remainder of the material is moved from needle to needle as shown in Fig. 4 and the fabric is then folded over an adjustable rod i. The fabric is removed from the apparatus together with the peak board and the rod i and is placed on a table. The folding is completed by removing the peak board and the rod and folding the fabric transversely. The method of folding in steps may be modified.