baber/WOPTO huggingface dataset:
Patent GB-1468916-A (GB)
Title: Drop formers for drip chambers of intravenous sets
IPC: A61M5/162
Filed: 1974-07-03
Abstract: 1468916 Drop-formers for drip-chambers UNITED STATES SURGICAL CORP 3 July 1974 [3 July 1973] 29510/74 Heading A5R A drop former 22, Fig. 3, for use with a drip chamber (not shown) to form drops of a predetermined size is formed of a plastics material e.g. polyethylene, polypropylene, polytetrafluoroethylene, fluorinated ethylene propylene, which absorbs less than 0.03% by weight water so that the size of said drops does not substantially change with time or flow rate. The intermediate portion 40 of the drop-former is tapered outwardly by an angle of 1 degrees with the vertical so that during the use, it provides a friction-fit between the drop-former and a piercer 12. In a modified drop former (Fig. 7) an annular collar 104 around a tapered portion 100 forms a mechanical lock with adhesive 106 applied on the surface 108 of the fluid discharge opening of the piercer. The piercer 12, formed of a plastics material, e.g. styrene-acrylonitrile. nylon or rigid polyvinyl chloride, is provided with a passage 54, carrying at one end an air filter (not shown) to vent the parenteral fluid container (not shown), and an annular flange 34 which is adhesively attached to the drip chamber. A stainless steel cannula (82) (Figs. 5, 6 not shown) having a diameter slightly larger than the diameter of the cylindrical inlet portion (72) of the drop former may be inserted in the latter to provide more drops e.g. 60 per millilitre of the parenteral fluid.
Patent GB-410682-A (GB)
Title: Improvements in or relating to machines for the production of sheet rubber
IPC: B29B7/56
Filed: 1933-10-25
Abstract: 410,682. Machines for calendering rubber. PRATT, A., 17, Courthill, Bearsden, near Glasgow. Oct. 25, 1933, No. 29515. [Class 70.] A rolling machine for rubber latex coagulum is constructed with one large feed roller a and several smaller rollers b, c, d, arranged at intervals near the periphery thereof so as to reduce the thickness of the coagulum by several stages so that all the work commonly done in several sets of rollers can be done in the one machine and in one operation. The three rollers b, c, d, are shown mounted in adjustable bearings and set so that the distance between each and the large roller decreases with each successive roller. Marking-rollers e, f, are also shown. The spray system supplying water to all the points of pressure is controlled by a hand-tap h.
Patent GB-146038-A (GB)
Title: Improvements in electric condensers
IPC: H01G5/38
Filed: 1919-11-27
Abstract: 146,038. Barber, W. E. Nov. 27, 1919. Condensers.-In a variable condenser of the type comprising a plurality of sets of interleaving vanes, the dielectric is formed by thin rings 13, 14 of ebonite or like insulating-material, leaving a large exposed surface and a thin layer of air between adjacent surfaces, and the fixed vanes 9, 11 are mounted by means of lugs which fit into slots in brackets 17 and are secured by soldering or the like. The movable vanes 10, 12 are threaded on bolts 23 and separated by segmental distance-pieces 24. The bolts are mounted in bearing portions 26, 27 which can be turned in bearings 28, 29 by means of a handle 25. The brackets 17 carrying the fixed vanes are connected by studs and spiral springs 32, 36 to the bolts 23. The bolts 18, 19, which secure the brackets 17 to the casing, form the terminals of the condenser. Arms 39, 40 are provided for short-circuiting the condenser when required, these arms also serving as stops to the turning movement of the handle.
Patent GB-1049122-A (GB)
Title: Fibres, films and shaped articles consisting of mixed high molecular weight substances
IPC: C08L25/18
Filed: 1963-07-26
Abstract: A fibre or film comprises a mixture or reaction product of (A) a polyester with (B) (a) a polymer or copolymer of an aromatic vinyl compound or (b) a sulphonated polymer or copolymer of an aromatic vinyl compound.  The fibre or film may comprise the sulphonated form of a mixture or reaction product of (A) with (B)(a). Specified components are (A) polyethylene terephthalate and polyesters derived from glycols and dicarboxylic acids (which may contain small proportions of amide, urethane, urea or ether bonds) and (B) homo-polymers of styrene or vinyl toluene or a copolymer of styrene and dichlorostyrene.
Patent GB-754808-A (GB)
Title: Thrust reverser for jet propulsion engines on aircraft
IPC: F02K1/60
Filed: 1954-10-15
Abstract: 754,808. Jet propulsion nozzles. BOEING AIRPLANE CO. Oct. 15 1954 [Nov. 27, 1953], No. 29778/54. Class 110(3) [Also in Group XXXIII] Jet thrust reversing means for aircraft having a jet propulsion engine comprises a pair of flaps pivotally mounted in the vicinity of the rear end of the engine tail pipe to swing from a position surrounding the tailpipe and providing an uninterrupted exit for the exhaust gases into an intercepting position wherein what are normally the rear ends of the flaps lie closely adjacent one another, spaced to the rear of the tailpipe exit and a baffle mounted on the interior surface of each flap to deflect forwardly the gases which, by the flap, are deflected outwardly. The engine (not shown) and the tailpipe 3 are housed in a casing 4 suspended from a wing (not shown) by a structure 5. The rear end of the casing is cut away on opposite sides at 6 to accommodate a pair of flaps 7 each mounted on a common hinge 8 for pivotal movement from a position in which they jointly complete the contour of the casing to the position shown in which they abut and deflect the exhaust gases outwardly on both sides of the jet pipe. To effect forward deflection of the gases a curved baffle 12 is mounted on the inner surface of each flap 7 by a hinge bracket 13 and connected to the casing 4 by links 15 so that when the flaps are moved outwardly by jacks 9 the deflectors 12 are automatically moved from position against the inner faces of the flaps to the positions shown in which they deflect the gases forwardly. Reference has been directed by the Comptroller to Specification 638,063.
Patent GB-486521-A (GB)
Title: A traffic direction indicator for bicycles, tricycles, motor cycles and all vehiclesusing the roads
IPC: B62J6/00
Filed: 1936-11-03
Abstract: 486,521. Road signals on vehicles. NEEDLE, F., and NEEDLE, B. E. Nov. 3, 1936, No. 29838. [Class 118 (ii)] In a direction indicator, fingers a<2> pivoted to a main finger a and provided with chamfered ends, are engaged by a sliding block d urged by a spring b away from a block c restrained by pin f on the main finger so that when the handle j is released from the slot k<1>, the fingers are projected from the casing g by the main spring i and spread apart by the action of spring b. The movement of the fingers a<2> is limited by a collar l and when retracted, the transparent discs a<3> are hidden behind extensions g<1> of the casing g. The device may be pivoted to the centre of a cycle handle-bar so that left or right turns may be indicated.
Patent GB-708466-A (GB)
Title: A method of and apparatus for the production of embossed or relief letters or designs on a background
IPC: G09F7/16
Filed: 1951-12-20
Abstract: 708,466. Showcards. LEVY, A. Oct. 30, 1952 [Dec. 20, 1951], No. 29861/51. Drawings to Specification. Class 3(2) [Also in Groups VIII and XVI] Embossed or relief lettering is produced on a background by means of an assemblage comprising a bottom layer of resilient material and a layer of material having or bearing the colour of the lettering required, the layers being adapted to be fixed together by adhesives, the free side of-the bottom layer having a coating of heat-responsive adhesive, the layers being placed on a background and cutting type being placed in position on the second mentioned layer, the assemblage then being placed in a zone of heat and the type subjected to pressure so that the letters are cut from the superimposed layers and are fixed to the background by the combination of heat and pressure, the surplus material of the layers then being removed to leave on the background embossed high relief lettering. The resilient layer is made of cork or like material. In a modification a third layer of thin cardboard is interposed between the other two layers. In another modification the resilient layer is the central layer of three layers. In a further modification, instead of letters, designs may be produced in varying depths of relief by using a die of varying contour. The layers may be stuck together before being placed in the zone of heat or each may be coated on its underside with heatresponsive adhesive. In the latter case the heat and pressure then stick the layers together as well as the background.
Patent GB-783593-A (GB)
Title: Television screen mask
Inventor: WHITING EDWARD GEORGE
IPC: H04N5/65
Filed: 1954-10-18
Abstract: 783,593. Television. WHITING, E. G., WHITING, B., and BOUTLE, S. J. Nov. 12, 1954 [Oct. 18, 1954], No. 29874/54. Class 40 (3). A hood for excluding extraneous light from the screen of a television receiver comprises flat wall members A<SP>1</SP>, A<SP>2</SP>, A<SP>3</SP> which extend obliquely forwardly and outwardly from the screen and the rear edges of which are provided with flange-like members A<SP>4</SP>, A<SP>5</SP>, A<SP>6</SP> which are secured together to form, with a tie member G, an open-backed frame surrounding the screen. The side wall members A<SP>2</SP>, A<SP>3</SP> may be provided with flap members K, K<SP>1</SP>, respectively, lying in the plane of the top wall member A<SP>1</SP> and pivoted thereto at L, L<SP>1</SP> thus allowing the side walls to be swung outwardly about vertical axes through the pivots. The top wall member A<SP>1</SP> may be provided with a hinged extension flap J to increase the marking effect of the hood and similar extension flaps may be provided on the side walls. The hood may be secured to the television receiver by a fastening band C and alternatively to, or additionally to, suction cups D may be provided on the back of the flange-like members. Specifications 677,165 and 783,594 are referred to.
Patent GB-1186590-A (GB)
Title: Process for the Production of Carboxylic Acid GLycidyl Esters
IPC: C09D163/00
Filed: 1967-07-06
Abstract: 1,186,590. Carboxylic acid glycidyl esters. CIBA Ltd. 6 July, 1967 [8 July, 1966; 10 April, 1967], No. 29931/67. Heading C2C. Carboxylic acid glycidyl esters are prepared by a process wherein in the first stage a carboxylic acid is reacted with at least 2 moles of α-epichlorohydrin per equivalent of carboxyl groups at 60-165‹ C. and in the presence of a tertiary amine, quaternary ammonium base or quaternary ammonium salt as catalyst such that the carboxyl groups are converted to chlorohydrin ester groups, which groups are then, in part, trans-epoxidized to glycidyl ester groups with the excess chlorohydrin present, the reaction being arrested when the first process step is substantially complete, and in a second process step the chlorohydrin ester left unchanged and the glycerin chlorohydrin formed are dehydrochlorinated with a 5-40% stoichiometric excess of concentrated aqueous alkali hydroxide which is added in small portions while simultaneously the water formed or added in the reaction is distilled off as an azeotrope with epichlorohydrin and finally the catalyst is removed by washing the reaction mixture with water. The carboxylic acid is preferably an aliphatic, cycloaliphatic or aromatic dicarboxylic acid. Tetramethyl ammonium chloride is the preferred catalyst. The first stage of the reaction may be monitored by measuring the pH of the reaction mixture, the reaction being discontinued at the final point of quantitative addition of epichlorohydrin to the acid when a rapid rise in pH occurs. The alkali hydroxide may be KOH or NaOH and a further portion of catalyst is preferably added before or during the dehydrohalogenation step. In the examples, the diglycidyl esters of #<SP>4</SP>-tetrahydrophthalic, hexahydrophthalic, sebacic, 1,10-decane dicarboxylio and phthalic acids, and others are prepared. Further examples include the allylglycidyl esters of phthalic, #<SP>4</SP>-tetrahydrophthalic, leocahydrophthalic and succinic acids and the triglycidyl ester of trimellitic acid.
Patent GB-934847-A (GB)
Title: Recognition apparatus
Inventor: TAYLOR WILFRED KENELM
IPC: G06V10/12
Filed: 1958-09-18
Abstract: 934,847. Automatic character reading. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 18, 1959 [Sept. 18, 1958], No. 29982/58. Class 106 (1). In a character recognition apparatus the image of the character is projected on to a coordinate array of photo-cells and a selection of the photo-cell outputs is taken for each character, the selected signals being added in resistors 12A-12D, half the total of all the signals being subtracted and the difference divided by the number of photo-cells in the corresponding set. The highest signal is determined to identify the character. As described the array consists of nine rows and nine columns, the outputs appearing on 81 terminals T1-T81. All terminals are connected through resistors 17, value R, to an amplifier G F  having a feedback resistor 18, value R/81. The resulting output is applied through resistors 19-22, value 2R/81, to the inputs of amplifiers G A -G D  receiving the summed signals from the several selected combinations. The value of resistors 12A-12D is also R and the signal from amplifier G F  is of opposite polarity so that each amplifier G A - G D  receives the difference between the summed signals of the selected group and half the total value. Each amplifier also has a feedback resistor 13-16 having a value of R divided by the number in the selected group, e.g. R/27 for letter "A." This normalizes the signals so that they are comparable. Amplifiers H A -H D  " determine which output is greatest by subtracting a signal derived from the outputs through resistors 23-26. Only one output should be positive and this fires a thyratron T A -T D  to set a relay R A -R D . To compensate for different character shapes and different possible positions a series of sets of the transducer terminals T1-T81 may be selected for each character and highest output, taken through a diode Or gate, is then modified by amplifiers G A -G D  as before.
Patent GB-1236818-A (GB)
Title: Improvements in apparatus for effecting movement of artificial limbs and of normally immobile natural limbs
Inventor: CONSTANCE-HUGHES TREVOR
IPC: A61F2/72
Filed: 1968-06-24
Abstract: 1,236,818. Apparatus for controlling limb movements. T. CONSTANCE-HUGHES. 2 June, 1969 [24 June, 1968], No. 30080/68. Heading A5R. Apparatus for effecting movement of artificial limbs, or of normally-immobile natural limbs, comprises a harness for attachment to a person's trunk, hydraulic master cylinders such as 13, 14 mounted on the harness and having actuating members, such as 2, for movement by shoulder and/or pelvic flexions whereby liquid in the master cylinders is displaced for actuating a plurality of slave cylinders located on the limb or limbs to be moved whereby a plurality of limb movements may be effected singly and in co-ordinated combination. Actuating levers 2 substantially overlying the clavicles may be pivoted about horizontal and vertical axes 15, 16 respectively or about both together to displace liquid in a vertical 13 or horizontal 14 master cylinder, or in both together. Artificial arms may be attached directly to the harness. Alternatively or additionally to the trunk harness, a pelvic harness may be used, relative movement being effected between the pelvic and trunk harnesses by spinal flexions to control liquid displacement in three master cylinders.
Patent GB-615323-A (GB)
Title: Process for reducing the viscosity of or for liquefying mucus, and preparations for use therein
IPC: A61K8/362
Filed: 1945-11-12
Abstract: A denture cleansing composition comprises an admixture of pyruvic acid or a pyruvate with succinic acid or a succinate, the preparation liquefying mucus by acting in conjunction with enzymes found therein and in saliva.  Other substances such as abrasives, ethereal oils, glycerine, mucilages and disinfectants may be added.ALSO:A preparation for reducing the viscosity of, or for liquefying, mucus comprises pyruvic acid or pyruvates together with succinic acid or succinates.  The preparation acts in conjunction with enzymes found in mucus.ALSO:A preparation for reducing the viscosity of, or for liquifying, mucus comprises pyruvic acid or pyruvates together with succinic acid or succinates.  The preparation which acts in conjunction with enzymes found in mucus and saliva may be incorporated in dentifrices, mouthwashes, mouthwash tablets, denture cleansers, ointments, gargles, chewing gums, &c., or may be employed as aerosols for inhalation.  Other substances such as ethereal oils, abrasives, glycerine, mucilages, disinfectants and antibiotics may be added.  According to an example, sodium pyruvate, sodium succinate, glycerine, gum tragacanth and water are mixed to form a paste, ethereal oils being subsequently added.
Patent GB-208322-A (GB)
Title: Coin exchange apparatus
IPC: G07F5/24
Filed: 1922-11-06
Abstract: 208,322. Wright, A. A., and Howlett, W. Nov. 6, 1922. Change-giving apparatus. - In apparatus applicable to prepayment gas meters or the like for giving change for either a sixpence or a shilling, the pennies are delivered one at a time from a change tube 56 fixed in a box 54, Fig. 11, by a slide 34, Fig. 4, which is reciprocated six or twelve times by the rotation, of a disc 25 having pins 29 to actuate a spring controlled lever 30 connected to the slide by a link 32. The disc is rotated by an arm 28 on a spindle 4 engaging the pins 29, the spindle being operated in one direction only by a handle 1, Fig. 1, connected thereto by a clutch which allows the handle, when not in operation, to hang in a vertical position. A spring pressed ball 41 engaging peripheral recesses 42 prevents the disc from rotating too freely. If there is no change in the tube 56 a lever 52 is held in the path of the pins 29, to lock the disc 25, by a spring 44 acting through a lever 53 and a link 35. The weight of change in the tube 56 acting through a ball 43 depresses the lever 53 and withdraws the locking-lever 52. Fingers 57, 58 are attached to the tube 56 to hold the coins therein, when the box 54 is withdrawn. The slide 34 and its casing 37 are slotted to accommodate these fingers. Coin action, mechanical-connection.-When a sixpence or a shilling is inserted through its respective slot in a casing 8, Fig. 1, into a cor. responding slot in a slide 7 operated by a cam 11 on the spindle 4 acting through a bell-crank lever 12, it transmits the motion of the slide 7 7 to a lever 9 moving this a greater or a less distance according to the diameter of the coin. The lever 9 through a link 13 moves a lever 15, Fig. 4, connected by links 17, 18 to locking levers 19, 20, and withdraws pins 21, 22 thereon from recesses 23, 24 to release the disc 25. When a sixpence is inserted, the pins enter an outer groove 26 and, when the disc 25 has been rotated six steps, it becomes locked again. When a shilling is inserted, the pin 22 enters and travels an inner groove 27 so that the disc 25 is released for a complete revolution of twelve steps. The coins of higher values are discharged through a shoot 55 to a money box. Returning coin. -A sixpence inserted in the shilling slot is returned to the operator through a shoot 10. , Coin-slit closing-devices. - While the mechanism is unlocked, the lever 9 holds a cover plate 64 over the insertion slots in the casing 8.
Patent GB-693547-A (GB)
Title: Improved method for the production of flexible tubes
IPC: B21C37/12
Filed: 1949-11-14
Abstract: 693,547. Making flexible tubes. AUER, A. Nov. 14, 1949 [July 26, 1949], No. 30306/51. Divided out of 693,486. Class 83 (ii). [Also in Group XXVIII] A method of making continuous flexible gastight tubing comprises helically winding strip material about a mandrel and grooving the tubing as it is formed, thereafter spraying or extruding through a concentric annular orifice on to the inner surface of the tubing a continuous layer of covering material such as natural or synthetic rubber or a plastic to form a gas-tight lining. If the lining material is rubber it is subsequently vulcanized, and the necessary additional ingredients for this process may be supplied through a bore or bores of the mandrel.
Patent GB-490440-A (GB)
Title: Advertising panel with interchangeable text
IPC: G09F7/02
Filed: 1936-11-06
Abstract: 490,440. Supporting signs ; labels. DABOUR, (nÚe TIMMERMANS), M. Nov. 6, 1936, No. 30316. Void. Convention date, Dec. 14, 1935. [Class 3 (ii)] [Also in Group XV] An advertising panel with interchangeable text comprises bands 2, Fig. 1, bearing the inscriptions and provided with lugs 3 which engage in pockets 4 formed by cutting slits in the panel and raising the adjacent material. The pockets may be formed on both sides of the panel such as by pushing the material on opposite sides of the slits in opposite directions. Fig. 4 shows an embodiment in which the panel is provided with a band 5 forming a collar for engaging over a bottle. In a further embodiment, the panel is provided with a supporting needle extending from its bottom edge.
Patent GB-193127-A (GB)
Title: Improvements in valves or the like fluid control means
IPC: F16K1/54
Filed: 1921-11-15
Abstract: 193,127. Grainger, J. E., Dixon, W. G., and Shadbolt, S. M. Nov. 15, 1921. Closure members, piston and compound.-In a valve of the type in which a piston valve member 3 having a triangular port or ports 4 is combined with a lift-valve closure member, an intermediate upstanding flange 9 is provided to protect the seat 6 of the lift member from the direct flow of the fluid.
Patent GB-220215-A (GB)
Title: Picture hanging device
IPC: A47G1/16
Filed: 1923-12-04
Abstract: 220,215. Taylor, H. B. Dec. 4, 1923. Hooks fixed to walls and flat surfaces.-A device for securing pictures, calendars &c. to walls comprises a spike 11, which may have a large head 12, secured to the picture &c. by a deformable strip 13. For safety in handling and transport the spike is disposed parallel with the picture &c. and lies against the strip as shown in full lines. To hang the picture the strip is bent to bring the spike to the position approximately at right angles to the picture, as shown in dotted lines, for insertion in the wall. As shown, the end 14 of the strip is hooked under the picture frame 16. Modifications are described in which, respectively, the strip has grippers which grip the frame, is secured by adhesive material, and is pressed through the picture and bent over.
Patent GB-456939-A (GB)
Title: Improvements in bed-pans and the like
IPC: A61G9/00
Filed: 1935-11-05
Abstract: 456,939. Bed-pans. ORAM, S., 24, Hardwick Street, Buxton. Nov. 5, 1935, No. 30512. [Class 26] In order to prevent slipping during use the base of a bed-pan is formed with a plurality of corrugations, projections, or the like 1.
Patent GB-1492192-A (GB)
Title: Yarn jerker system for tufting machines
IPC: D05C15/18
Filed: 1975-07-22
Abstract: 1492192 Tufting machine SINGER CO 22 July 1975 30549/75 Heading DIG A tufting machine yarn jerker system comprising a fixed jerker 32 and a reciprocating jerker 34 has one of the jerkers (32 as shown) formed by first (46) and second (48) jerker members the first of which is adjustably mounted (at 62) relatively to the second jerker member while both are adjustably mounted (at 54) relative to the machine. Yarns Y threaded through the first jerker are thus controlled separately from those threaded through the second. The yarns are positively and variably fed to the machine by rollers 26 not further described; the pull back applied to formed loops by the jerker system may thus accommodate yarns of different elasticity fed through the respective jerker members, or, if the yarns are of the same type, one yarn is pulled back more than the other to create a pattern effect with loops of different height.