baber/WOPTO huggingface dataset:
Patent GB-883324-A (GB)
Title: New benzoxazine derivatives, their preparation and pharmaceutical compositions containing them
IPC: C07D265/36
Filed: 1960-01-04
Abstract: The invention comprises compounds of the general formula <FORM:0883324/IV (b)/1> in which R is hydrogen or a lower alkyl radical (i.e. containing less than four carbon atoms), R1 is hydrogen or a lower alkyl or lower alkoxy radical, R11 is hydrogen, an acyl group or a lower alkyl radical, together with processes for their preparation (a) by reacting a 2,2-dihalo-3-oxo-dihydro-1,4-benzoxazine with a compound of formula <FORM:0883324/IV (b)/2> (which is unsubstituted in the position para to OR11, and in which R1 and R11 are as defined above), any free OH groups being alkylated or acylated if desired during or after the reaction; (b) by reacting an a ,a -disubstituted glycollic acid of formula <FORM:0883324/IV (b)/3> (R111 is alkyl, aralkyl or other group which can be replaced by hydrogen) or a reactive ester thereof with an R-substituted o-aminophenol, and if necessary subsequently converting R111 into R11; (c) by ring closure of an a ,a -disubstituted glycollic acid o-hydroxyanilide of formula <FORM:0883324/IV (b)/4> The intermediate anilides are prepared by reaction of an R-substituted 2,3-dioxo-dihydro-1,4-benzoxazine with an organomagnesium halide of formula <FORM:0883324/IV (b)/5> or by reaction of an o-hydroxyphenyl oxamic acid ester of formula <FORM:0883324/IV (b)/6> (COOA is a reactive ester group) with the above Grignard reagent, or by reacting an a ,a -disubstituted-a -halo-acetyl halide corresponding to the glycollic acid V with an R-substituted o-aminophenol.  The intermediate 2,2 - dihalo - 3 - oxo - dihydro-1,4-benzoxazines are prepared by halogenation of an R-substituted-2,3-dioxo-dihydro-1,4-benzoxazine.  The oxamic acid esters are prepared by reacting an oxalic acid alkyl ester chloride with an o-aminophenol.  a -Chloro-a ,a -bis (p-methoxyphenol) acetyl chloride is prepared from p-anisilic acid and PCl5.ALSO:Pharmaceutical compositions having laxative properties comprise benzoxazines of formula <FORM:0883324/VI/1> (in which R represents H or alkyl, R1 is H, alkyl or alkoxy and R11 is H, acyl or alkyl, the alkyl and alkoxy groups containing from one to three carbon atoms) together with a carrier.  The compositions may take the form of tablets, dragees, emulsions, suspensions, granulates, suppositories and examples detail the formation of compositions of each type.
Patent GB-1205349-A (GB)
Title: Flexible record member profile correcting system
IPC: G11B15/64
Filed: 1969-01-02
Abstract: 1,205,349. Magnetic recording and playback. SPERRY RAND CORP. 2 Jan., 1969 [3 Jan., 1968], No. 283/69. Addition to 1,205,347. Heading G5R. In a system of the type described in Specification 1,205,347, the profile of the flexible record strip 42, 44, 46 or 48 is flattened by means of a vacuum mechanism 40 which removes a portion of the boundary layer of air between the record strip and the rotor 22. The vacuum mechanism is controlled by means of a valve (58, Fig. 1). The free end 42<SP>1</SP>, 44<SP>1</SP>, 46<SP>1</SP> or 48<SP>1</SP> of the record strip may rest on one wall 861 of the vacuum mechanism 40.
Patent GB-139548-A (GB)
Title: Improvements in lock staples and in the manufacture of the same
IPC: E05B15/02
Filed: 1919-01-06
Abstract: 139,548. Parkes, S. R. Jan. 6, 1919. Striking-plates and staples for locks and latches. -A four-sided lock staple is formed by pressing a sheet-metal blank, preferably of the form shown, so that the parts a' are bent down to form the ends of the box and again bent at right-angles to position the fixing-lugs a<2>, the part a<5> bent down to form one side, and the part a<4> to form the other side and furnish a projecting extension for fixing. The blank is slotted at a<6> to receive the latch or latch and bolt, ani is pressed up at a<7> to form a striker, the part a', Fig. 4, being bent under the raised striker to close the gap.
Patent GB-1430831-A (GB)
Title: Transfer printing commutation apparatus for dc permanent magnet machines
IPC: D06B11/00
Filed: 1973-01-03
Abstract: 1430831 Transfer-printing apparatus WIRA and MATHER & PLATT Ltd 20 Dec 1973 [3 Jan 1973] 351/73 Heading B6C [Also in Division D1] A machine for transfer printing on to a moving fabric from a transfer sheet on at least a portion of one surface of which is located a textile finishing agent in solid phase comprises a pressure chamber adapted to be filled with fluid at a pressure greater than atmospheric, transporting means for conveying fabric through the chamber, means for feeding said fabric and said transfer sheet in face to face relationship as a sandwich through said chamber, means within said chamber of compressing said fabric/transfer sheet sandwich and means for providing at the interface between fabric and sheet liquid water at a temperature greater than 100‹ C. In the drawing the machine comprises an autoclave 10, pressure rollers 11, nip roller 12, motor 13, pressure roller shaft 15 is carried in block 17, on which acts a pressure diaphragm unit 18, air pressure at 19 causing a pressure to be applied to block 17 via a rod 20. The vessel has seals at 21. Guide rollers 22 and 23 guide the fabric F from roll 24 to padding mangle 25, through straightener 26 to roller 27 for contact with transfer paper TP from supply roll 28. Endless belt 29 passes around tension control roller 30, roller guide unit 31, roller 31, guide roller 33 and 27, curved plate 34, guide roller 35, curved plate 36 into the pressure vessel 10. The outer endless belt 40 passes round pull rollers 41, 42, tension control roller 43, rollers 44 and 45, take up roller 46 guide roller 47, under pressure vessel 10, guide roller 48, guide unit 49, and roller 50 then to follow the same path as the inner belt. At roller 38 the fabric and transfer paper are led away in the desired direction.
Patent GB-1368355-A (GB)
Title: Hydraulic valve
IPC: F16K5/12
Filed: 1972-01-05
Abstract: 1368355 Valves QUEENSBORO MARINE EQUIPMENT Ltd 5 Jan 1972 359/72 Heading F2V A valve for controlling flow between a positive displacement pump and a reversible motor has a rotatable cylindrical valve member 45 which is provided with a blind axial bore 56 for connection to the pump discharge (20) a radical port 58 with opposed tapering circumferential leads (60), (61) and a flat (65). Passages 38, 39 are for connection to opposite sides of the motor and open at seat ports 41, 42 either of which may be connected to the pump discharge via port 58 and bore 56 while the other is connected to the pump intake 23 via chamber 22 and flat (65).
Patent GB-156497-A (GB)
Title: Electric knife blade fuse
IPC: H01H85/153
Filed: 1921-01-05
Abstract: 156,497. Eustice, A. L. March 7, 1918, [Convention date]. Contacts.-The knife-blade terminals of a fuse are retained in position within the fuse shell by Z-shaped means interlocked with the shell and permitting a slight rotation of the blade about its axis for self-alignment purposes. The knife-blade 13 has a central aperture 14 and notches 16 in its edges. A Z-shaped member 15 with three aligned openings 18, 19, 20 is arranged within the aperture 14 with its end members in engagement with the notches 16, and a pin 21 is inserted through the cup 11, shell 10, and the openings in the Z-shaped member to interlock the whole with the shell. The clearances between the inner edges 23 of the aperture 14 and the pin 21 determine the amount of rotary movement of the knife blade, which passes through a stop in the end cap 11.
Patent GB-788968-A (GB)
Title: Antibacterial cellulosic material and preparation thereof
IPC: A61L15/20
Filed: 1956-01-05
Abstract: An antibacterial dressing comprises a cellulosic material, such as paper pulp or cotton fabric, impregnated with neomycin. Preferably between 0.05 and 10 micrograms of neomycin per square centimetre of fabric are used and it is applied in the form of neomycin sulphate. Such a dressing retains a comparatively large proportion of its antibacterial activity after washing and is consequently suitable for repeated use.
Patent GB-431517-A (GB)
Title: Improvements in or relating to boiler feed water systems
Filed: 1934-01-05
Abstract: 431,517. Preventing incrustation. LYSAGHT, F. DE S., 93, Chancery Lane, London.-(Northern Equipment Co. ; 111, West 11th Street, Erie, Pennsylvania, U.S.A.) Jan. 5, 1934, No. 453. [Class 123 (i)] [See also Group XIII] Variable amounts of condensate and combined amounts of make-up water and a treatment liquid inversely proportional thereto are supplied to a boiler, the supply of treatment liquid being proportional to that of make-up. In one form a storage tank receives condensate, make-up, and treatment liquid, the two latter supplies being regulated by synchronously operated valves actuated proportionately by a common lever controlled by a float in the tank, and the treated water is supplied by a pump through a main and through thermostatically operated feed-water valves to a battery of boilers. In another arrangement to avoid liming up the main when sodium phosphate is used as the treatment chemical a separate tank 51 and supply pipe 54 are provided for the treatment. Condensate and make-up enter a storage tank 52 through pipes 56, 18, the supply of make-up through pipe 23 and of treatment from a tank 25 being proportionately regulated in dependence on a float 27 by valves 22, 24, actuated by a common arm 30. As shown pumps 53, 57 are steam-operated ; an electric motor controlled in accordance with the level in tank 51 may however operate pump 53. Thermostats 65 regulate the feed into the boilers 10 as by means of valves 63 similar to valves 22, 24. In a modification tank 51 is dispensed with by passing the treatment pump steam through valve 24, the treatment passing direct from the supply tank through the pump to the boiler. To ensure a proportionate amount of flow through valves 22, 24 irrespective of variations in inlet or outlet pressures, means for maintaining a constant pressure drop through the valves are provided and may comprise bellows linked to a valve plunger and ducts connecting the bellows with regions on both sides of the valve. Or a constant liquid head may be provided above the valves by the use of elevated make-up and treatment tanks. The Provisional Specification describes a method of supplying the treatment in proportion to the total feedwater by passing condensate together with make-up through pipe 23.
Patent GB-683076-A (GB)
Title: Improvements in or relating to needle guards for sewing machines
IPC: D05B83/00
Filed: 1950-01-07
Abstract: 683,076. Sewing-machines. HAHN, A. H. Jan. 8, 1951 [Jan. 7, 1950], No. 468/50. Class 112. Finger - guards. - A coil of wire 9 is carried by a plate 1, adjustably mounted on the presserbar, in such a way that its upper end is slidably guided so that the coil may be compressed by the needle-bar in its descent. In the form shown an extension of the lower end of the coil is held in rolled edges 2, 3 of the plate 1 and an extension of the upper end is slidably guided in a vertical rolled edge 4. The plate carries in an aperture 12 a rotatable slotted disc 13 to receive the presser-foot clamping screw, whereby it may be secured in any desired position relative to the foot, and has adjustably fixed to it by a screw and slot 11 a bracket having lugs 6, 7 to embrace the presserbar. In a modification the disc 13 is dispensed with, and the clamping screw engages a vertical slot in the plate. Specification 21842/11, [Class 112], is referred to.
Patent GB-248525-A (GB)
Title: Improvements in or relating to devices for displaying advertisements and the like
IPC: G09F11/02
Filed: 1925-01-07
Abstract: 248,525. Clegg, C. S. Jan. 7, 1925. Cylinders, prisms, and like elements, rotating and oscillating.-In an advertising or like device, a number. of movable letters are brought successively into position behind viewing apertures 3 in a facing to spell out words, the aperture being screened by plates 20 when the letters are not showing. The plates are spaced behind the facing and slotted to accommodate radial arms 6 supporting the letter elements 7. The arms 6 are loosely pivoted on a shaft 4 carrying a slotted drum 5, and rest on one of the slot edges 9 which is helical in form so that as the drum rotates the elements 7 fall over in succession and appear at the aperture 3. A rod 10 carried by cranks 11 receives the arms 6 to hold all the elements in line at the aperture. The cranks 11 are loose on the shaft 4 and are supported by arms on spring- loaded vertical rock-shafts which are turned through an angle to release the cranks 11 by projections on the drum ends. Other projections 17 carry the cranks 11 and rod 10 round into position again. Any number of shafts 4 may be provided, and be operated in any desired order by a mutilated gear wheel 19 engaging wheels 18 on the shafts. The facing 2 and plates 20 are of a contrasting colour to the letters. Fig. 5 shows a modification in which pairs of elements 22 on pivoted levers 23 are brought behind openings 3. One of each pair of elements bears a letter and the other is blank, and the levers 23 are moved in succession to display the lettered elements by a projection 24 on a moving band 25. A rod 26 is moved by the projection 24 to return all the levers 23 simultaneously by pins 27. The device may be surrounded by a number of rotating coloured drums giving the effect of a moving band of colour.
Patent GB-1534172-A (GB)
Title: Heat exchangers
IPC: F28F9/02
Filed: 1976-01-07
Abstract: 1534172 Making heat exchangers SCHMIDTSCHE HEISSDAMPF GmbH 7 Jan 1976 [10 Jan 1975] 499/76 Heading B3A [Also in Division F4] A heat exchanger (e.g. in which steam is generated) comprises banks of double-walled tubes 4, 5 extending between, and welded to, oval section headers 6, 6<SP>1</SP> (Fig. 2, shows a view of a header 6 taken at right angles to that of Fig. 1). Outer tubes 5 communicate with the headers whereas inner tubes 4 pass therethrough. The ends of the headers 6, 6<SP>1</SP> are of circular cross section, each header including transitional portions 10, 10<SP>1</SP> in which the cross-section changes from being oval to being circular. The headers, at each end, are joined by welding to manifolds 12, 12<SP>1</SP>. Each header together with its transitions has been shaped from a single length of seamless cylindrical tubing by hammering and swaging. As shown in Fig. 1, the oval section headers are welded together side by side and form elements like tube end plates. Hot gases pass from head 2 to head 3 via the inner tubes 4 and are cooled by water which is supplied through the annular jackets formed between the inner and outer tubes 4 and 5. Steam is generated.
Patent GB-891844-A (GB)
Title: Improvements in or relating to coin freed mechanisms
Inventor: GRAY BERNARD HERBERT LESLIE
Filed: 1960-01-06
Abstract: 891,844. Coin-freeing mechanisms. SANGAMO WESTON Ltd. Jan. 5, 1961 [Jan 6, 1960], No. 506/60. Class 27. A coin-freeing and testing mechanism, particularly for a prepayment meter, comprises a manually rotatable drum 31, a calipering pawl 16 which, if a correct coin is inserted, allows complete rotation of the drum and a ratchet or like device 30 with an untoothed portion 41 which allows partial rotation of the drum for coin testing before a pawl 28 engages the toothed portion 42 and prevents return movement of the drum. Before coin insertion, a lug 36 on the drum engages the upper limb 39 of the pawl 16 and the coin slot 40 in the drum is then in alignment with a slot in a fixed outer cover. The bottom edge of an inserted coin rests on the flange 35 of the drum and its top edge raises the pawl 16 so that the lug 36 can pass between the two limbs of the pawl. When the disc part of the drum has fully blocked the outer coin slot, a lug 37 on the drum passes below the upper limb of the pawl and the pawl 28 begins to engage the toothed portion 42 of the disc 30. At this point, an operative connection can be made to the prepayment meter. Upon further movement of the drum, the end b of the flange 35 moves beyond the coin and it is relased into a coin box, assisted by a spring 20 acting on the calipering pawl and on a reject pawl 18 which ejects undersized coins. If the coin does not drop clear, either the lug 37 or another lug 38 on the drum will contact the coin and prevent further rotation but, if the coin has dropped clear, the lug 38 can pass above the pawl 16 which has then dropped to its normal position and the drum can be rotated until the lug 36 again engages the pawl 16. If an attempt is made to raise the pawl 16 by a knife or other tool, the knife must be withdrawn when the outer coin slot is nearly closed and the pawl then falls into position to be engaged by the lug 37; the pawl 28 has not yet engaged the toothed portion of the disc 30 and the drum can be returned. If the user succeeds in jamming the pawl 16 in raised position, the pawl 38 will engage the pawl and, as the pawl 28 now engages the toothed portion of the disc 30, the mechanism is locked.
Patent GB-905552-A (GB)
Title: Improvements in or relating to pleating materials
IPC: B65D65/38
Filed: 1958-01-16
Abstract: 905,552. Packaging. EVERLASTING PLEATING CO. Ltd., and BRODY, M. Feb. 20, 1959 [Jan. 16, 1958], No. 57,4/58,. Class 94(1).  A permanently pleated material 1 is sandwiched between covers 2, 3, that are pleated with the material, the covers having scale markings 7, 8, 9, enabling any predetermined length of the material to be measured off without extending or opening the pleats to determine said length. As shown the cover 3 in wider than the cover 2 so as to form an exposed edge part 6, and the greater part of this exposed edge part 6 is covered by a band of paper strip 5 conforming with the pleating of the edge part 6. The band 5 is marked with scale units such as yards 7, quarter yards 8, and half yards 9, or in any other convenient units of length, the markings being so arranged as to correspond to measured lengths of the material 1 when opened out. A similar band 5 may be provided at the opposite edge of the pleated material 1. To retain the material 1 in its pleated condition one or more adhesive tapes 10 may be secured to the covering 2.
Patent GB-656370-A (GB)
Title: Improvements in friction clutches
IPC: F16D3/52
Filed: 1949-01-10
Abstract: 656,370. Friction clutches; variable -speed gearing. BREEZE, C. A. Jan. 10, 1949, No. 623. [Class 80(ii)] In plate clutches having at least two coacting annular discs engagement between which is resisted by the pressure of fluid supplied from an enclosed space within the annuli to fluid flow passages in the contact face of one disc, the passages terminating inwardly of a plain circumferential surface portion of the disc, means are provided for supplying fluid under pressure to the enclosed space in a series of rapidly recurring impulses. As shown applied to a multiplate clutch, driving and driven plates 77, 81, Fig. 8, the driving members of which are formed with fluid flow passages on one or both sides as appropriate, rotate in a fluid-tight stationary housing 94. A high-speed, variable delivery pump 89, of the type used for diesel engine fuel injection, which, as shown, is driven by a cam 90 on the clutch driving shaft but may be independently powered, draws liquid from the housing 94 via a conduit 93- and returns it, via ducts 88 and in a series of rapidly recurring impulses, to the space 87 enclosed by the plates 77, 81. When allowed by a control lever 97 to do so, a spring 80 supplies clutch-engaging pressure, which is resisted by the fluid pressure so as to cause intermittent clutch slip until the drive is taken up, when the pump delivery can be slowly cut off. With sufficient pump pressure available, intermittent clutch slip may be maintained continuously, so as to give a fixed or variable transmission ratio. The pump pressure may be limited by a relief valve 92. For a dry plate clutch, air from a compressor or suitable distributing valve may replace the liquid medium. The flow passages in a disc contact face may be curved, or straight radial or inclined, grooves, such as 14, Fig. 2, which may be connected by one or more pressure-equalizing channels 16. The adjacent contact face of the co-acting disc may be plain or also have passages of any of the above forms or grooves 17, Fig. 3A, co-acting only with the plain circumferential surface of the first disc. The passages, which may be of uniform depth or width or vary in depth or width throughout their length, may be of Vee, sawtooth, semi-circular or other cross-section, and may be formed either in an integral part of the corresponding disc or on detachable and renewable facings thereon.
Patent GB-689275-A (GB)
Title: Improvements in or relating to bedrests or chairs for patients
IPC: A47C20/02
Filed: 1951-01-10
Abstract: 689,275. Bedrests. SMITH, O. F. GUTHRIE-. Jan. 10, 1952 [Jan. 10, 1951], No. 712/51. Class 52(ii) A bedrest also suitable for use in moving the patient into and out of bed comprises a U-shaped frame 1, a backrest consisting of a frame 4, 6 with members 7 and secured to the frame 1 by the said members 7 and vertical members 8, sling- like members 15 adjustably carried by the frame 1 and a foot rest consisting of a board 26 and secured to hook-like portions 2, 3 of the frame 1 by straps 25. The footrest straps 25 also carry a pad 31 to enable the feet of the patient to be supported. the feet passing beneath an elastic band 33. The back-rest is prolonged to form handles 13 provided with loops 14 through which a rod, e.g. a walking-stick, may be passed to enable the patient to rock himself for exercising purposes. The patient is liftable into and out of bed by means of the bedrest.
Patent GB-122426-A (GB)
Title: Improvements in or relating to Apparatus for Indicating the Straightness or Curvature of the Course of Aircraft.
Inventor: LESSEPS JACQUES DE
IPC: G01C9/00
Filed: 1917-01-15
Abstract: 122,426. Lesseps, J. de, and Suffit, R. Courtois-. July 19, 1915, [Convention date]. Measuring-apparatus.-Apparatus for indicating whether the course of an aircraft is straight or curved so that the pilot may, if necessary, steer the aircraft into a straight course before reading the clinometer, comprises two air inlets 1, 1<1> connected by pipes 2, 2' to pressure chambers 3, 3' capable of operating an indicating needle 8 through inkwork; the apparatus also indicates the speed of the aircraft. The inlets 1, 1<1> may comprise Pitot, Venturi, Baudin or other tubes, and are preferably placed at the greatest possible distance from the plan of symmetry of the aircraft and in position in which the local relative speed of the air is greater than the speed of the aircraft. The pressure-measuring chambers 3, 3<1> are of diaphragm or other type. The linkwork comprises a parallelogram of links pivoted at the corners 4, 5, 6, 7, the pivot 4 being fixed, and links 10, 11 and 12, 13 connecting the parallelogram to the pressure chambers. The needle 8, which may be pivoted at 4 or elsewhere, passes through a slide 14 provided at the pivot 6, and indicates on a scale 9. When the course of the aircraft is straight, the pressures in the inlets 1, 1<1> are equal, and the needle 8 is at the zero position on the scale 9, but when the course is curved the pressures are unequal and the needle 8 is consequently displaced from zero. The needle 8 may have graduations 15, so that the position of the slide over the graduations indicates the speed of the aircraft. The clinometer may comprise a pendulum, suitably damped, and operating an indicating needle moving in front of the dial bearing the scale 9.