baber/WOPTO huggingface dataset:
Patent GB-375549-A (GB)
Title: Improvements in or relating to the treatment of aliphatic acids
IPC: C07C51/487
Filed: 1931-06-25
Abstract: Aliphatic acids containing substantial quantities of froth-producing substances and of at least 5 per cent concentration are neutralized by carbonates or bicarbonates at temperatures above 50 DEG  C. so that the froth breaks down.  The invention is described with reference to the neutralization of acetylation liquor with sodium carbonate, but is applicable to other acids such as formic, propionic and butyric acids and potassium and calcium carbonates and alkali bicarbonates are also mentioned as neutralizing agents.  The acid may be heated in vessels of copper, wood, or stainless steel, or in a continuous manner by passing through heated tubes to the neutralization vat. When the matter separated during the neutralization is very fine, it is preferred to add small quantities of coagulating agents, such as soluble salts of aluminium or iron, for instance alum, aluminium sulphate, ferrous and ferric sulphates or the double salt of aluminium and ferric sulphates.  When acetylation liquor is used the sulphuric acid present may be first removed by barium carbonate or hydrate.  In an example an acetylation liquor of 20 per cent strength is neutralized at 90-95 DEG  C. with sodium carbonate, acid and carbonate being added to the vat so as to keep the solution near neutrality; when the vat is filled, aluminium sulphate is added and the liquor is then brought to slightly alkaline reaction.
Patent GB-676883-A (GB)
Title: Improvements relating to coating metal articles with compatible dissimilar metal
IPC: C23C2/02
Filed: 1949-07-13
Abstract: 676,883. Coating with metals. FAIRCHILD ENGINE & AIRPLANE CORPORATION. July 13, 1949, No. 18536/49. Class 82(ii) Metal articles are coated with dissimilar metals by heating, by electric induction, the part of the article to be coated to a temperature at least as high as the melting point of the coating metal and to a depth substantially less than the thickness of the article at that part and whilst the remainder of the article remains at a substantially lower temperature immersing the heated portion in a bath of the molten coating metal, the volume and temperature of the remainder of the article being such, in comparison with the volume and temperature of the heated portion, that alloying is immediately arrested and freezing of a layer of coating metal occurs, and removing the article from the bath before the remainder becomes heated to the melting point of the coating metal. Steel articles may be coated with aluminium, magnesium or their alloys, copper and copper-clad articles may be coated with aluminium, silver or tin and articles of or coated with tin or silver may themselves be coated. An engine cylinder barrel 10, Fig. 1, after cleaning and after the areas not to be coated have been painted with a stop-off solution. e.g. of lime, is surface heated in the area 13 by passing the barrel downwardly through the H.F. induction coil 14 to a temperature 100-300F above the melting point of the coating metal, into a bath 11 of which the barrel is immediately passed, and from which it is quickly withdrawn. Similarly, the internal surface of a bearing sleeve may be coated, the coil being located within the sleeve; or a bar, wire or rod may be coated. Coating may be carried out in a non-oxidizing or reducing atmosphere, e.g. of hydrogen. Specification 599,684 is referred to.
Patent GB-1424445-A (GB)
Title: Method and apparatus for controlling the feed of  filamentary material
IPC: D04H11/00
Filed: 1973-04-17
Abstract: 1424445 Pile fabrics BOND WORTH LTD 8 April 1974 [17 April 1973] 18539/73 Heading D1K Means are provided to prevent pile yarn ends 42 springing back into a Jacquard selection mechanism 20 after they have been gripped and withdrawn from the Jacquard 20 by gripper 16, and before severing by a knife 24 and pressed onto a backing 12 by a presser 14. After a selected yarn 42a has been pulled back by the gripper 16 rods 32 are lowered at a holding station 27 to grip all of the yarns 42 before severance. Feeding bars 35 at a feeding station 29 are then moved backwards by a crank so that pawls 37 grip all the yarns 42 so that yarn loops in the non-selected yarns are straightened and the selected yarn, from a creel 18, is pulled under its pawl 37 to compensate for the tuft length drawn off by the grippers. The feeding station 29 is then returned forward to restore the loops in all the yarns ready for the next selection.
Patent GB-1392506-A (GB)
Title: Method for detecting thermal chaanges on a surface
IPC: G01N25/72
Filed: 1972-04-21
Abstract: 1392506 Testing tyres MONSANTO CO 21 April 1972 18564/72 Heading B7C [Also in Division G1] Time variations in temperature of a surface of an object, e.g. a rotating tyre 3 under test, are monitored by scanning the surface repeatedly with an infra-red sensor which provides for each scan an output indicative of surface temperature, and comparing the outputs for successive scans. In this way faults in a tyre, which dissipate heat at different rates from fault-free portions, can be detected. An IR sensor, e.g. InSb cell, is mounted on a carriage 1 whose movement along guides 5, 6 is controlled by a stepping motor 8b, there being one sensor for each side of the tyre, Fig. 3 (not shown). The sensor traverses from the bead to the tread in sixteen steps of dwell time four revolutions each. The extremes of the sensor traverse are served by an optical system (19) and a proximity switch 8a respectively.
Patent GB-868388-A (GB)
Title: Process for stretching thermoplastic tubing
IPC: B29C48/90
Filed: 1958-06-10
Abstract: <PICT:0868388/IV (a)/1> A process for stretching thermoplastic tubing comprises passing the tubing, at a temperature at which it is sufficiently soft to allow it to be stretched, over or through a porous former having a greater diameter at one end than the other, and keeping the tube out of contact with the former by passing gas under pressure through pores in the former.  As shown, a tube 11 is extruded over a porous former, having cooling sections 10, 12, 21 and a heating section 20, and a gas under pressure is introduced into the inside of the former through a tube 24.  After passage over the former, the tube may be slit by knives 28, 29 and flattened by pinch rolls 30.  The former may be made from sintered metal, e.g. bronze, small metal balls soldered or welded together, wire matrices or from sintered metal-ceramic compositions.  In Fig. 2 (not shown) the tube is expanded by internal gas pressure and passed through a former. The former need not be of circular cross-section. Specifications 634,445 and 847,548 are referred to.
Patent GB-186008-A (GB)
Abstract: 186,008. Myer, C. D. Feb. 22, 1922. Valves controlled by pilot, or relay valves; dashpots, applications of. - A valve device particularly adapted for flushing urinals &c. on board ship has the main valve actuated by fluid pressure acting on a pair of diaphragms under the control of an auxiliary valve and has an opening and closing retarding-device comprising a pair of chambers containing glycerine bounded by the actuating diaphragms and communicating through a valve-controlled orifice in a dividing partition. The main valve member 33 seated at 42 is carried by a spindle 32 guided at 35 and connected to a pair of diaphragms, 20, 25. The diaphragms are clamped between lipped flanges 19, 24 on the casings, and have apertures 21, 22, 26, 27 to coincide with passages 10, 11 forming inlet and outlet passages to the actuating-chamber 9. Part of the lower diaphragm is masked by a flange 28. The auxiliary valve 48 is actuated by a push 38 mounted on a spindle 37 provided with an enlarged part 39 to act as a stop and is arranged to connect the chamber 9 alternately to the inlet connection 10 or the outlet passage 11. The partition between the two actuating-diaphragms is provided with a stuffing-box 36 for the valve spindle and with an aperture 17 regulated by means of a valve 18 whereby the retardation may be adjusted.
Patent GB-770859-A (GB)
Title: Apparatus for coating articles with refractory oxides and the like
IPC: B05B13/06
Filed: 1955-06-28
Abstract: 770,859. Spraying fusible materials. NORTON GRINDING WHEEL CO., Ltd. June 28, 1955 [June 29, 1954], No. 18602/55. Class 69 (3). A gun for spraying refractory metal oxides fed through the gun in rod form comprises a casing 11 housing feed wheels 40, 41 having rubber tyred peripheries 42, 43, whereby the rod is fed to a nozzle structure 61, 62 where it is fused by a gas flame and sprayed by compressed air. A gas receiverdistributer 16 is supplied with compressed air through a line 20 and with acetylene and oxygen through lines 21, 22 respectively. The combustion gases flow through passages 31, 101 and 68 to nozzle gas passages 64. Compressed air flows through passages 56 to the annular space 98 between hollow cylindrical structures 96 and 97, and passes through the converging passage 90 between the gas and air nozzles 61, 62. A part of this air flows through a passage 117 in the nozzle 62 and is deflected by a plate 114 into the main air and gas streams. A block 60 at the rear of the nozzle structure includes a rod gripping and centering mechanism comprising three circumferentially spaced balls 74 housed in radial channels, and urged against the rod by a spring 82 acting on plungers 78. The wheels 40, 41, which feed a succession of abutting rods R<SP>1</SP>-R<SP>4</SP> through the gun are driven by a shunt wound motor mounted on the gun. The motor armature is supplied with a voltage dependent on the rod speed desired, and means are provided for maintaining the desired speed constant. The upper feed wheel is mounted on a hinged part 48 of the casing and is adjustably urged towards the lower wheel by a screw 51. A valve 23 controls the supply of air and combustion gases.
Patent GB-780625-A (GB)
Title: Improvements in sole-cementing presses
IPC: A43D25/10
Filed: 1955-06-28
Abstract: 780,625. Sole presses. SCHUHMASCHINEN-GES. HANKE & CO. June 28, 1955 [June 28, 1954], No. 18689/55. Class 17(1) The pressure pad of a sole cementing press comprises an inflatable bag 5 fully enclosed by a cover 1 at least the front part of which is enclosed and reinforced by a plurality of rigid horseshoe-like frame members 6, 9, 10 secured together by bolts &c. 12, the pad bearing with its whole undersurface against the pressure pad base. In the construction shown in Fig. 12 the rear part of the cover is fully closed and the marginal portions of the forepart flaps 3, 4 are secured between members 6, 9 and 10, the members having interengaging tongues 13 and grooves 14. Preferably the upper flap 3 is made stronger and more rigid than flap 4 by using stronger material and/or reinforcements, e.g. of fabric. The pad lies loosely on its base comprising a front part 11 and a part 18 pivoted at 22, displacement being prevented by a projection 17 on the base. A spring 16 on valve socket 15 protects the pad by allowing it to yield. The ends of member 10 are connected by springs to a cross-bar on the base to ensure that the entire lower surface of the pad rests on the base. Part 18 is adjusted about its pivot 22 by a handle 26 secured to an internally threaded sleeve 24 which receives a coarse threaded spindle 25 having a head 31 which engages in groove 32 in the part 18. The handle is locked in position by a pawl and ratchet. The joint between parts 11 and 18 may be such that the edges interengage, or the gap 35 therebetween may be bridged by a protective layer 36, e.g. of rough leather, preferably secured to part 11. In the construction shown in Fig. 11, for flat bottomed, e.g. men's shoes, the bag 5<SP>1</SP> is placed between resilient plates 7, 8, the front parts being connected by members 6<SP>1</SP>, 9<SP>1</SP>, 10<SP>1</SP>, similar to those in Fig. 1, and the rear parts connected by resilient means, e.g. tieing, articulated bolting, cementing &c., or by members 9<SP>11</SP>, 10<SP>11</SP>, 6<SP>11</SP> similar to members 9<SP>1</SP> &c. To permit some adjustment between the front and rear parts members 37, 38, resting on the margins of covers 7, 8, and spaced by resilient members 39, are loosely interposed between members 9<SP>1</SP>, 9<SP>11</SP> &c., and secured by bolts.
Patent GB-835944-A (GB)
Title: Improvements in or relating to radiators for short-wave devices
IPC: A61N5/04
Filed: 1957-06-13
Abstract: 835,944. Radiation therapy. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 13, 1957 [June 15, 1956], No. 18690/57. Class 81 (2). [Also in Group XL (c)] A radiator for short-wave radio energy comprises a reflector member of hood shape with a free-end aperture width of approximately a half of the operating energy wavelength and a series inductance-capacitance circuit arranged across and within the aperture for loading and tuning. The radiator is primarily intended for medical therapy and dielectric heating purposes. Owing to its relatively small dimensions the material to be heated can readily be placed in the required position. In the embodiment described the member consists of a rectangular metal plate shaped to have side portions 1 and a central portion 2. The ends of the side portions need not be closed but a dielectric cover 6 is provided across the aperture. Midway between the ends of the side portions and attached to them at points set back from the aperture are metal strips 4, 4a, one of which is shorter than the other and has a forked extension strip attached to it so that the gap between the turned-over end pieces 5, 5a can be adjusted. The limbs 4, 4a constitute inductive reactances and a capacitive reactance occurs between the parallel portions 5. The coaxial feeder is attached as shown, the point of attachment of the inner conductor being chosen to match the impedance of the radiator to the feeder. Quarter-wave chokes 7 are provided on the outer sides of the portions 1.
Patent GB-418692-A (GB)
Title: Improvements in or connected with winding systems and in or connected with cold storage and delivery plant
IPC: B65G65/00
Filed: 1933-07-01
Abstract: 418,692. Self-reversing winding-apparatus; end stop gears. LEES & CO., Ltd., H., and BILES, A. W., 81, Mitchell Street, Glasgow. July 1, 1933, No. 18706. [Class 78 (v).] The pinion E in the gear train connecting the motor A and winding drum B is mounted between the free ends of a pair of pivoted links F which are connected by a link 7 to a lever G operating a control switch H. Since the counterweight C is heavier than the loaded cage D, the motor has to be actuated during lowering, and the pinion E moves upward to the extent permitted by the stop 10. When the cage rests upon the material already discharged from it, the increase of the load imposed on the drive rocks the lever G against the action of the weight 9, and the switch H is actuated to stop or reverse the motor A. The winding mechanism may be mounted on a carriage running on rails.
Patent GB-142715-A (GB)
Title: Improvements in or relating to apparatus for heating or cooling fluids
IPC: F28F9/22
Filed: 1919-07-28
Abstract: 142,715. Jackson, W. J. Mellersh-, (Griscom-Bussell Co.). July 28, 1919. Straight tubes passing through helical baffles; expansion of tubes providing for; internal baffles in tubes; casings, constructions and forms of.-In heat-exchangers having straight tubes 8 passing through a helical baffle 19, this baffle is made of a number of sections each comprising a single turn. Fig. 5 shows one form 19<c> made of sheet metal, shown in Fig. 1 as spaced apart by sleeves 19b upon rods 19<a>. Fig. 13 shows another form 52 in which a spacing flange 50 is attached to the edge. Various forms of complete apparatus are described; in one, Fig. 1, a central tube 7 leads to an outlet 10 in the header 6, cooling water which has passed to the sliding head 21 through the small tubes 8. In the form shown in Fig. 7, expansion or contraction of the tubes 8 is provided for by an expansion ring 30 in the casing, this form also showing a single How for cooling water from header 32 to header 33. The tubes 8 may be fitted with strip baffles 25, Fig. 3, reversely twisted from a central flat part 26.
Patent GB-613351-A (GB)
Title: Improvements in or relating to latches for doors and the like
IPC: E05C3/12
Filed: 1946-06-21
Abstract: 613,351. Latches. WILKES BERGER ENGINEERING CO., Ltd., and BEISHON, A. R. June 21, 1946, No. 18723. [Class 44] In a latch of the kind comprising a latchmember 10, pivotally mounted about an axis parallel to the plane of the door, spring-urged to engage with a keeper, and retractable by means of a plunger 27, the latch member is provided with a cam face 17 engaged by the end of the plunger, which is guided for sliding motion in a fixed knob 36, and is recessed at 28 adjacent its inner end, so that the part 15 of the latch member which engages the keeper lies, when retracted, partly within the recess in the plunger. Alternatively, the latch member may be slotted. The cover-plate 26, Fig. 4, of the housing 12 of the latch has an opening of the shape shown so that the plunger 27 may be introduced in assembly.
Patent GB-232837-A (GB)
Title: Improvements in traveling conveyors
IPC: B08B9/42
Filed: 1924-08-06
Abstract: 232,837. Herold, J. L. Aug. 6, 1924. Bottles, wshing.-In conveyer machines, the mouth of each bottle holder B is closed by a tongue 11 on an adjacent holder during a straight run of the convever. When the conveyer passes round a wheel 12<1>. the relative movement of a tongue and adjacent holder is sufficient to permit the insertion of a bottle from a shoot 9. Bottles are discharged on to a shoot in a similar manner.
Patent GB-483439-A (GB)
Title: Improvements in or relating to the drive for endless track vehicles
IPC: B62D11/10
Filed: 1937-07-06
Abstract: 483,439. Driving and steering endlesstrack vehicles. ZAVODY TATRA AKCIOVA SPOLECNOST PRO STAVBU AUTOMOBILU A ZELEZNICNICH VOZU. July 6, 1937, No. 18751. Convention date, July 9, 1936. [Class 79 (ii)] The endless tracks 2, 2<1> are driven and steered through a change - speed gear comprising a common driving shaft and a separate driven shaft 3, 3<1> for each track a plurality of pairs oi gear wheels being pro vided for driving each driven shaft from the driving shaft at different speed ratios, the gear pairs being independently selectable so that the shafts 3, 31 may be driven at the same speed for each of the speed ratios provided or at different speeds for steering. In the arrangement shown the gear pairs II, III are engaged, the track 2 is driven at a slower rate than the track 2<1> and the vehicle is steered in the direction of the arrow I. Synchromesh gears may be provided.
Patent GB-151776-A (GB)
Title: Improvements in baling presses
IPC: B30B9/30
Filed: 1919-07-30
Abstract: 151,776. Bridge, R., and Bradshaw, J. G. July 30, 1919. Baling-presses.-Consists of a portable baling- press, comprising a compressing-box, and a plunger which can be slid horizontally for initial compressing and then engaged by half nuts to effect further compression, and by worm operated gear for final compression. The box a has keyed jaws b supported on pillars c and beams d having two rods e secured thereto by nuts f. The platen, which may have a roller or rollers 5, is connected to a screw k freely mounted in a member m having rollers n supported ;n channels p. Half nuts q on the frame may be engaged after initial compression, by a hand-lever rand eccentrics in links s. Further compression is then given by turning the hand-wheel u. Where additional compression is desired, a worm-wheel v freely mounted on the screw is engaged therewith by a feathered claw-clutch sleeve y being moved axially to engage the clutch face x. Rotation is thus effected bv hand wheels 4 and a worm on the shaft 3, which may be power driven.
Patent GB-737045-A (GB)
Title: Improvements in or relating to manually-operated hydraulic jacks
Inventor: HISTON ROBERT
IPC: E21D15/60
Filed: 1953-07-08
Abstract: 737,045. Hydraulic jacks. WILD & CO., Ltd., A. G. April 15, 1954 [July 8, 1953], No. 18905/53. Class 78 (3). In a hydraulic jack for withdrawing pit props or tensioning chains of coal cutters or conveyers as described in Specification 735,288 comprising a pump 20 supplying liquid from a reservoir 18 to a pressure chamber 10 thereby retracting a piston 14, the jack is filled with compressed air or gas to assist return movement of the piston when the pressure in chamber 10 is released. Reciprocation of plunger 20 by a handle 34 withdraws liquid from reservoir 18 through valve 24 and forces it through valve 28 and passages 28<SP>1</SP>, 29 and 30 to chamber 10. The piston may be held in any position of adjustment by engaging the end of the handle in a recess 36 in the cylinder head 12. Lowering of the handle to engage a second recess 37 depresses a plunger 41 which opens a valve 45 permitting liquid to return from chamber 10 to the reservoir. Upward movement of the handle is limited by engagement of a pin 6 with an abutment 61.
Patent GB-651579-A (GB)
Title: Improvements in or relating to the polymerization of vinylidene compounds
IPC: C08F4/06
Filed: 1948-07-14
Abstract: Monomers containing a terminal methylene group attached by a double bond to a carbon atom are polymerized in aqueous medium in the presence of silver ammonia complex ion.  The monomer may be vinyl chloride, vinylidene chloride, styrene, p-chlorostyrene, 3,5-dichlorostyrene, p-methoxystyrene, acrylonitrile, methacrylonitrile, alpha-chloro-acrylonitrile, methyl acrylate, ethyl acrylate, methyl methacrylate, butyl ethacrylate, methacrylamide, vinyl methyl ketone, vinyl pyridine, vinyl carbazole, vinyl methyl ether, vinyl acetate, vinyl benzoate, isobutylene, ethylene, butadiene 1-3, isoprene, chloroprene, 3-cyano butadiene 1-3, myrcene, vinyl acetylene or vinyl ethynyl diethyl carbinol.  These monomers may be polymerized with one another or with diethyl maleate, diethyl fumarate or maleic acid or anhydride and interpolymers may also be prepared containing vinyl bromide, fluoride or iodide, vinyl propionate, vinyl butyrate, vinylidene bromide or cyanide, methyl ethacrylate, methyl alpha-cyano acrylate and ethyl alphachloro acrylate.  The reaction is preferably carried out at 20 DEG  C. to 60 DEG  C. in the presence of a peroxygen catalyst, preferably a water-soluble persulphate.  The silver ammonia complex ions are preferably introduced into the polymerization mixture by adding silver nitrate and ammonia or ammonium hydroxide although other water-soluble or sparingly soluble silver compounds such as silver sulphate, acetate, nitrite, fluoride, chlorate or lactate or metallic silver or insoluble silver compounds such as the chloride, bromide and carbonate may be used.  The silver ammonia activator may be added gradually by coating the added silver or silver compound with collodion or suspending it on a silica gel carrier, and the silver ammonia ion may be formed outside the reaction medium and added thereto, e.g. by adding diamino silver chloride formed by dissolving silver chloride in ammonium hydroxide.  Polymerization may be effected with or without an emulsifying agent which may be sodium oleate, potassium palmitate, sodium stearate, sodium myristate, sodium lauryl sulphate, sodium isopropyl naphthalene sulphate or the sodium salt of N-octadecyl, N-1,2-dicarboxyethyl sulphosuccinamate. A colloidal protective material such as gelatine or bentonite may also be used.  Buffer salts such as sodium bicarbonate and modifiers such as alkyl mercaptans may be added.