baber/WOPTO huggingface dataset:
Patent GB-1133436-A (GB)
Title: Thermoplastic polyurethanes
Inventor: STIVERS EDWARD COLLIER
IPC: C08F299/06
Filed: 1966-10-21
Abstract: 1,133,436. Plastics tubes. RAYCHEM CORP. 21 Oct., 1966 [22 Oct., 1965], No. 47292/66. Heading F2P. [Also in Division C3] Heat unstable tubing capable of changing dimension upon the application of heat alone to assume a predetermined dimension and heat-stable condition may be prepared by mixing a thermoplastic polyurethane with N,N<SP>1</SP>- methylene - bis - acrylamide, extruding the mixture to produce tubing having an average wall of 0À016 inch and an average internal diameter of 0À113 inch, irradiating the tubing to two different doses of 10 and 20 megarads to cross-link the polyurethane and expanding the tubing to an external diameter of 0À25 inch to 0À255 inch. The expanded tubing, when heated to 170 C., returns to substantially its original dimensions. ring 39, Fig. 2 (not shown) on a snap-action spring 33 which moves, on contraction of the thermostat, to open the auxiliary valve. On continued movement the spring bears against the main valve member and opens it. This member is connected to a sealing bellows 25. The auxiliary valve carries an adjustable abutment nut 34 engaged by the snap spring. This nut is adjustable by a tool inserted from below. In a modification, the plunger (11<SP>1</SP>), Fig. 4 (not shown), has a conical depression in its end, engaged by a conical end of a disc (39<SP>1</SP>). The point of engagement is arranged in the plane of the main valve closure surface so that the valve member can tilt to give a welldefined opening even if the lift is small.
Patent GB-1260350-A (GB)
Title: Underground drilling motor or turbine
IPC: E21B4/02
Filed: 1969-09-26
Abstract: 1,260,350. Boring earth, &c. TURBOSERVICE S.A. 26 Sept., 1969 [4 Dec., 1968], No. 47605/69. Heading E1F. A down-the-hole motor (e.g. a turbine) 1 driving a bit 4 is covered by a sheath which protects it from wear and may be replaced by sheaths of different thickness for use with bits of different diameter. The sheath is preferably in sections 11 either screwed together as shown, or wedged together (Fig. 3, not shown) or connected by interfitting castellated ends and restrained by the end sections being screwed to or abutting the motor (Fig. 2, not shown). The sheath has projecting guides as at 8, 9, 10, either straight or angled, smooth or abrasive, and the arrangement of guides may be used to control the path of the drill.
Patent GB-1400032-A (GB)
Title: Method of processing a seamless metal tube
IPC: B24C1/00
Filed: 1972-10-16
Abstract: 1400032 Blasting ZIRCONIUM TECHNOLOGY CORP 16 Oct 1972 [21 Oct 1971 17 Jan 1972] 47659/72 Heading B3D A method of processing a seamless metal tube to inhibit bursting of the tube on its being subjected to a high internal pressure condition comprises preparing the tube with a relatively smooth internal surface with any surface discontinuities having a maximum depth of 2 mils. and blasting the internal surface of the tube with abrasive particles to obtain a surface finish within the range of 20 to 50 RMS. The tube may be of titanium alloy or Zircaloy, such as used to clad reactor fuel in a nuclear reactor, and is produced by extrusion or swaging which forms notches on its inner surface of a depth up to 2 mils., such notches resulting in bursting of the tube when subjected to high internal pressure. The inner surface of the tube is roughened to reduce the effect of the notches by shotblasting in which particles of abrasive, such as silicon carbide having a particle size within 40 to 150 mesh, are projected by air pressure operated blasting nozzles inserted into each of the ends of the tube against the surface, the air pressure being at 50 p.s.i. The tube had an internal diametre of 0À45 inch and about 1 mil. was removed by the blasting process to produce a roughness preferably within the range of 30 to 40 RMS. The interior surface may be cleaned after the roughening process by a pickling operation. The outer surface of the tube may be detergent cleaned, polished, pickled and then peened.
Patent GB-1518398-A (GB)
Title: Releasable clamp for brakes
IPC: B60T13/36
Filed: 1976-11-16
Abstract: 1518398 Clamp MIDLAND-ROSS CORP 16 Nov 1976 [12 Dec 1975] 47717/76 Headings E2A and E2B A clamp for retaining a reciprocable rod 42 in a set position to prevent brake release comprises a pivoted pawl 62 yieldably biassed e.g. by coil spring 76 into a clamping position; fluid pressure means to move the pawl to the releasing position e.g. fluid supplied to the underside of piston 54, and means (not shown) to relieve pressure in the fluid pressure means.
Patent GB-1499558-A (GB)
Title: Flat stock cutter
IPC: B26D1/20
Filed: 1975-11-20
Abstract: 1499558 Cutting sheets R L CARLSON 20 Nov 1975 47833/75 Addition to 1395121 Heading B4B A cutter assembly for cutting sheet material comprises a cutter bar 154 located above the material to be cut, a freely rotatable cutter wheel 136 urged into contact with a cutting edge 152 of the bar and mounted on a carriage 138, 162, which is slideably mounted on a track 134, and a handle 168 secured to the carriage for effecting movement of the latter to cut the material. The cutter wheel is rotatably mounted on a shaft 138 provided at one end with a member 140 having a wear-resistant member 142 for engagement with the track 134 and at the other end, engaging in a member 162 to which the handle is attached. The wheel is urged into contact with the cutter bar by a spring-loaded plunger 144. In order to increase the loading when the cutting, downward pressure is applied to the handle causing the member 162 to pivot the shaft 138. The edge of the material is clamped during cutting by a gripper bar 182 urged by springs (184) Fig. 8 (not shown) into contact with the material; the gripper bar is released by handles 186, 186a. In the modification shown in Figs. 10 and 12, the cutter wheel is carried by a shaft 230 provided at one end with a roller 232 for engagement with a track and supported at the other end by a bracket 234 slidably mounted on a bar 208. The bar is provided with pivotably mounted portions 214, 214a such that when the handle 236 is moved downwardly to increase the cutting wheel pressure, the gripper bar 222 is automatically urged into contact with the material via a pin connection 226, 228, Fig. 10. Reference has been directed by the Comptroller to Specification 1,395,121.
Patent GB-1180789-A (GB)
Title: Boot and Shoe Seam Press
Inventor: WILLISCH HORST
IPC: A43D55/00
Filed: 1967-10-20
Abstract: 1,180,789. Boots &c. H. WILISCH. 20 Oct., 1967 [20 Oct., 1966], No. 47924/67. Heading A3B. A machine for pressing the seams of closed shoe uppers, especially boot uppers having long legs, includes a support 1, 11 for the upper 22 and a pressing member 10 which is moved downwardly to press the back seam of the upper by a pressure cylinder 18 in response to actuation of a foot pedal 2. Actuation of the pedal 2 also causes a front form 3 on the upper support to move downwardly to tension the upper and hold it in place and causes a lower pressing member to move upwardly under the action of piston rod 19 to press the front seam of the upper. The pressing members may be heated and the machine may also shape the upper. Furthermore the machine may be used to secure a back strap 9 to the upper. The rear of the upper is roughened using roughing tool 4, dust being drawn away by a nozzle 5 and a back strap 9 is fed from a reel 6, through an adhesive applying device 8, on to the rear of the upper, the back strap being bonded to the upper during the seam pressing operation.
Patent GB-1006258-A (GB)
Title: Improvements in rendering less soluble or less dispersable in an aqueous liquid, a proteinaceous substance
IPC: C07K16/06
Filed: 1962-12-19
Abstract: A proteinaceous substance is rendered less soluble or less dispersible in an aqueous liquid by adding to said liquid with the proteinaceous substance dissolved or colloidally dispersed therein, polyethylene glycol having a molecular weight of at least 300 to precipitate at least some of said proteinaceous substance. The proteins may be mixed and fractional precipitation of the proteins is brought about by the addition of the polyethylene glycol.  Aqueous polyethylene glycol of suitable concentration may be used for selective elution of precipitated protein fractions. The average molecular weight of the polyethylene glycol may be up to 100,000. The temperature may be from 0 DEG  to 40 DEG  C. and the process may be used in conjunction with pH control and inorganic salt precipitation.  Examples relate to the fractionation of human blood plasma and the purification of Clostridium Novyi toxin, Botulinus Toxin type D, Tetanus anti-toxin, pancreatic desoxyribonuclease, fibrinogen and gamma globulin.  In general, the process is applicable to the separation, isolation and purification of plasma proteins, anti-toxins, bacterial toxins, viruses, nucleic acid and enzymes.ALSO:A proteinaceous substance is rendered less soluble or less dispersable in an aqueous liquid by adding to said liquid with the proteinaceous substance dissolved or colloidally dispersed therein, polyethylene glycol having a molecular weight of at least 300 to precipitate at least some of said proteinaceous substance. The proteins may be mixed and fractional precipitation of the proteins is brought about by the addition of the polyethylene glycol. Aqueous polyethylene glycol of suitable concentration may be used for selective elution of precipitated protein fractions.  The average molecular weight of the polyethylene glycol may be up to 100,000. The temperature may be from 0 DEG C to 40 DEG C. and the process may be used in conjunction with pH control and inorganic salt precipitation.  Examples relate to the fractionation of human blood plasma and the purification of Clostridium Novyi toxin, Botulinus Toxin type D, Tetanus anti-toxin, pancreatic desoxyribonuclease, fibrinogen and gamma-globulin.  In general, the process is applicable to the separation, isolation and purification of plasma proteins, antitoxins, bacterial toxins, viruses, nucleic acid and enzymes.
Patent GB-1537088-A (GB)
Title: Device for feeding blanks to a stamping press
IPC: B21D43/13
Filed: 1976-11-18
Abstract: 1537088 Coining L SCHULER GmbH 18 Nov 1976 [21 May 1976] 48111/76 Heading B3Q Circular or polygonal blanks 7 are fed alternately from two sheets 8, 9 to a coining &c. press by a linearly reciprocable slide 10 with two pockets 11 to receive the blanks and transfer them to a central work-station 2, a surface guiding one side of the slide and a stationary bar 12 remote from the surface bounds the pockets 11 and has a recess at the work-station to permit passage of a horizontally movable punch 3. As shown the punch 3 and a reciprocable die 4 coin the blanks in a die ring from which they are removed by the punch or die and a lateral ejector 15 on the slide 10. The tops of the blanks are engaged by a bar 14 on a strip 13 which strip is cut away to accommodate the punch; a similar bar may be provided on the lower bar 12.
Patent GB-1439211-A (GB)
Title: Haymaking apparatus
IPC: A01D78/10
Filed: 1973-10-16
Abstract: 1439211 Haymaker with rotary rake head support wheel MASCHINENFABRIK FAHR AG GOTTMADINGEN 16 Oct 1973 [17 Oct 1972] 48158/73 Heading A1F Haymaking apparatus which comprises at least one rotary rake head having a ground engaging support wheel 12 which is lockable in an "upper windrowing position" or a "lower tedding position" and which is spring biassed such that upon raising the rake head(s) and unlocking the associated wheel(s), each wheel pivots to a point mid-way between its locked positions to facilitate manual change over from one position to the other. The wheel is mounted on an arm 10 which is fixed to a plate 13 but pivoted via a pin 11 to a shaft 9 attached to the rake head shaft (not shown). Spring 18 biasses the wheel, which is locked by engagement of spring biassed bolt 16 in either of plate holes 14, 15. Alternatively, the arm 10 can be pivoted to the rotary rake head shaft.
Patent GB-1242407-A (GB)
Title: Process for the improvement of shaped silica gels
IPC: C01B33/157
Filed: 1968-10-11
Abstract: 1,242,407. Improving silica gel. CHEMISCHE WERKE HULS A.G. 11 Oct., 1968 [14 Oct., 1967], No. 48223/68. Heading C1A.  Shaped pure silica gel is surface-hardened by treating it for a period of from 20 to 120 minutes at a slowly rising temperature within the range of from 100 to 350 C. with the vapour of a saturated aliphatic alcohol having from 1 to 5 carbon atoms, which vapour may contain up to 10% by volume of water vapour and/or up to 3% by volume of acetic acid vapour. The gassing may be carried out in a drying tower or a horizontal rotary furnace in which, advantageously, the gels are to serve as esterification catalysts. The alcohol treatment may be carried out in stationary layers, but gassing in a rotating tube or in a fluidized bed has the advantage that the heat conduction in the granulate and likewise the alcohol concentration in the mixture is completely uniform.
Patent GB-1135226-A (GB)
Title: Improvements in or relating to hammer or other implement-carrying units
IPC: E01C23/12
Filed: 1965-11-17
Abstract: 1,135,226. Tractor driving gear. CHAMPION Inc. 17 Nov., 1965 [18 Nov., 1964], No. 48750/65. Heading B7H. [Also in Division E1] A vehicle, such as a tractor, is provided with an hydraulically powered creeper drive 190- 201 that can be coupled to the normal gear transmission of the vehicle when the engine of the vehicle is declutched therefrom and is powered by pressurized fluid being supplied to the motor 190 of the drive only when the foot brake 218 of the vehicle is released. The brake operates a sleeve valve 222 controlling a valve 204 regulating the supply of pressurized fluid to the motor 190. Two sets of steering wheels and propulsion controls are provided on the vehicle for the driver's use. One set, a rear mounted set, is for control of the creeper drive by the driver when facing the rear of the vehicle and the other, forward mounted set is for the normal driving of the vehicle when the driver is facing forwards.
Patent GB-1396544-A (GB)
Title: Dobby
IPC: D03C13/00
Filed: 1972-10-23
Abstract: 1396544 Dobbies STAUBLI LTD 23 Oct 1972 [21 Oct 1971] 48828/72 Heading D1E In a dobby, reciprocating draw beams 13, 14, and corresponding stationary beams 11, 12, have sets of projecting teeth 16 and 15 respectively and draw elements 9, 10 which are pivoted to a baulk 8 may be moved from engagement with the teeth of the associated stationary beam 11 to engagement with the teeth of the associated reciprocating beam 13 or vice versa when the two beams are aligned. The draw elements 9, 10 have rollers 17, 18 which engage the teeth 15, 16 and a pivoting lever 24 operated by reciprocating rods 23, 25, controlled by the pattern transfers the draw member from one beam to the other. Draw beams 13, 14 are driven along a curved track which for each draw element is an arc of a circle with its centre at the mid-point of the centres of rollers 17 and 18 of the other draw rod when engaged with a tooth 15 of the stationary beam 11. The draw beams have a dowell in their lower position. Draw rods 9, 10 may be quided by a cam surface parallel to the draw beam path. The draw beams may be rotatable about their longitudinal axis to prevent the draw rods slipping out of engagement. Alternatively, the wheels 17, 18 on the draw rods may be offset with respect to each other and the longitudinal axis of the draw rod (Fig 4, not shown).
Patent GB-1370991-A (GB)
Title: Air conveyor apparatus
IPC: B65G51/03
Filed: 1972-10-24
Abstract: 1370991 Pneumatic conveyer deck REX CHAINBELT Inc 24 Oct 1972 [26 Nov 1971] 48904/72 Heading B8A Material is conveyed along a channel by air jets issuing between pairs of tongues, one tongue  of each pair being part of one plate and the other tongue being part of another, slots in the plates adjacent the tongues permitting the co-operation of the tongues to form the air jets. The plates form a portion of the channel (e.g. wall or floor) and are adjustable relative to each other to vary the flow characteristics of the air jets. In the figure, plates 10 and 11 are shown with the slots 13, 16 and tongues 14, 17 interconnecting to form orifices 20 through which air may pass as shown by arrows 21. The plates may slide relative to one another to increase or decrease the size of orifices 20. Modifications (Figs. 5 and 6, not shown) provide for a plurality of jets from each orifice by forming the tongues with slits in the forward edge, or a vertical lifting face by drilling holes in the surfaces of the plates.
Patent GB-1253353-A (GB)
Title: Improvements in and relating to caravan seats
Inventor: TAYLOR ROBERT VINCENT
IPC: A47C13/00
Filed: 1967-10-17
Abstract: 1,253,353. Caravan seats. DANBURY CONVERSIONS Ltd. 15 Oct., 1968 [17 Oct., 1967], No. 48938/68. Divided out of 1,253,351. Heading B7B. [Also in Division A4] The description is the same as the parent Specification but the claims relate to Figs. 5 and 6 of the parent Specification, and the claims are directed to a caravan having mounted therein a seat which houses an article. e.g. a sink or a stove. Reference is made to Specification 1,253,352.
Patent GB-1477789-A (GB)
Title: Iris diaphragm
IPC: G03B9/06
Filed: 1975-11-28
Abstract: 1477789 Iris diaphragm FUJI PHOTO OPTICAL CO Ltd 28 Nov 1975 [17 May 1975]  49083/75 Heading G2J In an iris diaphragm one of the blades 1, Fig. 4, has an additional area 2 separated from the main blade 5 by a slit. The arrangement is such that the adjacent blade 10 is sandwiched between the normal and additional parts of blade 1. Upon closing the diaphragm the additional portion 2 closes off the small central aperture before bunching of the overlapping blades becomes excessive.
Patent GB-1115080-A (GB)
Title: Modified alkyd resins and tinting compositions containing them
Inventor: CONSTANTINIDES ERRICOS
IPC: C08G63/676
Filed: 1964-12-02
Abstract: Oil modified alkyd resins are made by (a) heating a polycarboxylic acid, an at least trihydric polyhydric alcohol, a drying or semi-drying oil or fatty acid thereof and a polyalkylene glycol of molecular weight  300 to 1000 in an amount of 5 to 20% by weight of the foregoing reactants to produce a resin with an acid number not exceeding 35; and (b) heating this resin with an alpha-beta unsaturated dicarboxylic acid to produce a resin with an acid number of 30 to 60.  The final resin may then be neutralized, e.g. with an alkali metal hydroxide, ammonia or an organic base (e.g. N,N-diethyl ethanolamine) dissolved in an amphipathic solvent (e.g. a lower aliphatic alcohol, N-methyl-2-pyrrolidone, dioxane, hexylene glycol or an aliphatic ether of a glycol or polyglycol) and made into a tinting composition together with one or more pigments, fillers or extenders, an anionic or non-ionic surface-active agent e.g. an alkylated phenol/ethylene oxide condensate, a fatty alcohol/ethylene oxide condensate, an ester of a fatty acid and a polyethylene glycol, a salt of an alkyl-aryl sulphonic acid or soya lecithin and, possibly, a fungicide (e.g. phenyl mercury acetate, tolyl mercury acetate or p-chloro-m-cresol). In examples resins were made by heating phthalic anhydride, pentaerythritol, linseed fatty acids (with or without linseed oil) and polyethylene glycol in the presence of xylol, then adding maleic anhydride and further heating, and finally thinning with 2-butoxy ethanol.  The resin neutralized with caustic soda was then made into a tinting composition possibly with a wetting agent and (1) vegetable black and blanc fixe; (2) chromium oxide; (8) Hansa Yellow 10G and kaolin; (9) Hansa Yellow 10G, blanc fixe, 2-butoxy ethanol and hexylene glycol; (10) phthalo blue, blanc fixe and N-methyl-2-pyrrolidone; (11) phthalo blue, blanc fixe, N-methyl-2-pyrrolidone and 2-butoxy ethanol.  The unneutralized resin was also made into a tinting composition together with a wetting agent; and (3) Hansa Yellow 10G, kaolin, 2-butoxy ethanol and N,N-diethylethanolamine; (4) Ferrite yellow, calcium carbonate and N,N-diethylethanolamine; (5) phthalo blue, blanc fixe, 2-butoxy ethanol and N,N-diethylethanolamine; (6) brown iron oixde, talc, 2-butoxy ethanol and N,N-diethylethanolamine; (7) Indian red oxide of iron, calcium carbonate, 2-butoxy ethanol, N,N-diethylethanolamine and a fungicide.
Patent GB-1151259-A (GB)
Title: Improvements in Mechanical Earth Working Machines
IPC: E02F3/413
Filed: 1967-10-30
Abstract: 1,151,259. Earth-excavating machines. POCLAIN. 30 Oct., 1967 [24 Nov., 1966], No. 49123/67. Heading E1F. An excavating tool is supported from the jib of an excavator through an orientatable rotary coupling. The coupling comprises a central shaft 3 having at the upper end means 4 for attaching it to the jib. To the lower end of the shaft is secured the housing 25 of a motor 27, which causes through an epicyclic gear 28 rotation of a casing 36 mounted on the housing 25. To the casing 36 is secured the tool, which may be a grab, bucket or scoop.
Patent GB-1121359-A (GB)
Title: Electrical stringed instrument
IPC: G10H3/18
Filed: 1966-11-03
Abstract: 1,121,359. Electrical musical instruments. J. C. COOKERLY, and G. R. HALL. 3 Nov., 1966, No. 49374/66. Heading G5J. The strings of a musical instrument are conductive and are arranged in a magnetic field, which they cut when vibrated, the current so generated in the strings being fed to an amplifier and speaker. In the electric guitar shown, the strings which may be phosphor-bronze, beryllium-copper or metallic wrapped nylon or gut, pass between the pole plates 34, 35 of a magnet. The strings are electrically connected together at one end by a bar 20, and have their other ends individually connected through amplifiers 25 to a speaker 26. An aluminium strip (27, Figs. 2 and 4, not shown) extends along the neck of the instrument and forms an electrical connection between the bar 20 and an earth line 28. The strip also propagates sound waves along the neck at a different speed to the material of the neck and has a damping effect on vibrations in the neck. The enlarged head 21 adds to this effect. The magnetic field is arranged to extend over a considerable length of the strings to eliminate harmonics. In a modification each string has an individual strip magnet formed of hard rubber or plastic impregnated with barium ferrite. In a further modification the strings are connected in series to a common amplifier.
Patent GB-1428840-A (GB)
Title: Method of triggering a controlled rectifier and maintaining it  conductive and a generator for that purpose
IPC: H03K17/73
Filed: 1973-10-24
Abstract: 1428840 Semi-conductor pulse producing circuits DANFOSS AS 24 Oct 1973 [24 Oct 1972] 49601/73 Heading H3T To make sure a controlled rectifier turns on and stays on, its gate receives a pulse with a short high portion followed by a lower pulse train portion. The rectifier may be part of an inverter (Fig. 2, not shown) driving a motor coil 5. The gating pulse is produced by feeding a control pulse to a bi-stable T45, T47 (Fig. 5) via terminal 12 and differentiator 51, 54, so that at the start of the control pulse, T45, T47 conduct to discharge a capacitor 39 into the primary 41 of a transformer 42 and generate the high short portion of the gating signal at 8. The control pulse at 12 also turns on T27 after a short delay (R24, C25), to enable a blocking oscillator T28 to produce the train of pulses. Diodes 44, 36 add the two portions.