baber/WOPTO huggingface dataset:
Patent GB-1061862-A (GB)
Title: Improvements in or relating to welding apparatus
IPC: B23K9/095
Filed: 1964-04-17
Abstract: 1,061,862. Automatic control systems for arc welding. WELDING RESEARCH Inc. April 17, 1964 [May 24, 1963], No. 15991/64. Heading G3R. A consumable electrode arc welding system includes a first control circuit which is responsive to arc voltage and which allows the arc to be started and initially controlled, a current sensing circuit which starts a time-delay arrangement when the arc is struck, and a second control circuit which is responsive to the position of the end of the consumable electrode and which takes over, after the time delay, to maintain a constant arc length. As shown, a welding system comprises a torch 10, a consumable electrode 14 which is fed towards a workpiece 12 by a mechanism 15 driven by a motor 16, a motor control 1 system 37 having inputs from an integral amplifier 35 and a proportional amplifier 36, and a welding current source 20. A capacitor 30, which senses the arc voltage, and a capacitor 31, which can receive a reference potential from a source 56, together provide a first error signal which is applied to the motor control circuit over contacts associated with starting switches 25, 26, 27 and relays 40, 50; the arrangement is such that the electrode 14 first moves to engage the workpiece 12, then retracts to initiate an arc, and is then fed towards the workpiece in dependence upon arc voltage. After a time delay determined by a network 60; 61, 62 relay 40 is energized to disconnect the first error signal from the control circuit 35, 36, 37 and to connect a second error signal from lines 89, 90 to the control circuit whereby the electrode feed is controlled in dependence on the position of the end of the electrode 14; variations in this position are sensed by a photo diode 70 whose output is applied to a circuit which produces the second error signal on lines 89, 90 and which includes a reference source 73, a transistor 78 and a filter 80, 81 to remove transients. The arc length is thus maintained at a constant value by controlling the position of the end of the welding electrode. The photo diode 70 is mounted in a tubular structure 71 attached to the welding torch.10 Fig. 2 (not shown).
Patent GB-163923-A (GB)
Title: Improvements in spring buffers for railway and like vehicles
IPC: B61G11/18
Filed: 1920-06-12
Abstract: 163,923. Gatwood, W., and Willans, G. H. June 12, 1920. Buffers.-In a buffer casing of the type described in Specifications 26634/04 and 15394/05 made of steel pressings and having a ferrule or bearing sleeve in its end, the parts are so constructed that the impact of the buffer when driven home is taken directly by the end of buffer casing and not through the intermediary of the ferrule. The buffer casing 3 is made of steel pressings riveted together having a ferrule 7 at its end to guide the buffer rod 5. The casing is turned over at 10 and pinched in around parts of the circumference as at 1<a> to retain the ferrule in position. The radius 12 of the ferrule 7 is made to clear the radius 6 on the buffer head when the head makes contact with the buffer casing. Various methods of retaining the ferrule in position are shown; the ferrule may also be made from steel pressings riveted together.
Patent GB-312284-A (GB)
IPC: B05B7/24
Filed: 1929-05-23
Abstract: 312,284. Vincent, J. May 23, 1928, [Convention date]. Addition to 299,364. Void [Published under Sect. 91 of the Acts]. Air-pressure sprayers.-Atomizers of the kind described in the parent Specification are provided with means for simultaneously regulating the liquid and air supplies. A pistol handle A has mounted on it a member B carrying the liquid container 11<a> and having three parallel bores a, b, c, formed therein. The bore a is is connected to the container 11<a> and is provided with a nozzle 9 regulated by a needle valve 16. The bore c receives the air supply pipe d and communicates by a port f with the bore b in which slides a tube e formed with an opening h and having a nozzle at one end and closed at the other by a screwed plug g against which bears a spring t. A trigger i bears against a pivoted lever j the end of j<2> of which lifts the needle valve 16 while the other end bears against the plug g. The amount of opening of the needle valve 16 is regulated by nuts m<1>, m<2> and the movement of the trigger is limited by an adjustable stop n.
Patent GB-1435276-A (GB)
Title: Oxazolidines and conversion to propanolamines
IPC: C07C231/12
Filed: 1974-04-10
Abstract: 1435276 Oxazolidines; propanolamines PFIZER Ltd 9 April 1975 [10 April 1974] 16030/74 Heading C2C Compounds of the general formula (R = H, halogen, C 1-4  alkyl or alkoxy; ring A may be phenyl or naphthyl) are prepared by reacting the corresponding 5-aryloxymethyloxaazolidin-2-one or alkali metal derivative thereof with a reactive derivative of 2-(p-carbamoylphenoxy)-ethanol, and may be subjected to basic or acidic hydrolysis to afford the corresponding propanolamine or salt thereof.
Patent GB-1127575-A (GB)
Title: Improvements in or relating to devices for working crop lying on the ground
IPC: A01D78/16
Filed: 1966-04-12
Abstract: 1,127,575. Haymaking machines. C. VAN DER LELY N.V. 12 April, 1966 [15 April, 1965], No. 16038/66. Heading A1F. A haymaking machine comprises a plurality of driven raking members rotating about parallel longitudinal axes each member consisting of a rotor 27 rotatable about a fixed axle 8 and connected by pivoted spokes 26 to the tines 22 which are mounted in groups on holders 39 rotatable on the outer ends of the spokes, the holders being connected by pivoted links 33, 35 to rings 30 freely mounted on a cranked portion 12 of the axle 8, the arrangement of spokes and links being such that the spokes always extend outwardly from the rotor and the tines always extend outwardly from the spokes. The axles 8 are mounted on a wheeled frame 1 and each rotor includes a tubular part 20 mounted on ball-races 23 and integral with a sprocket 24 which is encircled by a chain and is driven from the power take-off of the towing tractor (not shown) through reversing gear which enables the device to be used either as a tedder or side-delivery rake. The angle of attack of the tines is adjustable by rotating the cranked part 10 of each raking member about the axle 8 and fixing it in an adjusted position by means of an arm 59 and latch 60. The cranked ends 12 of adjacent raking members are connected together by a yoke 13. The tines 22 are made in pairs and clamped around pins in the holders 39, which are held so that the tines remain in an outwardly-extending position by spring-loaded locking mechanism (Fig. 4, not shown) which can be overridden by an obstruction.
Patent GB-334200-A (GB)
Title: Improvements in apparatus for separating liquids from fluids containing same
IPC: B01D45/08
Filed: 1929-05-24
Abstract: 334,200. Hocking, H. May 24, 1929. Steam separators.- In apparatus of the kind in which the steam &c. is directed to and fro around concentric cylinders 5, 7 with oppositely directed openings 6, 8, the cylinders are carried by a throat piece or conduit 10 which is supported from a cover 2 on the casing 1 so that the cylinders may be removed with the cover. The opening 6 in the inner cylinder consists of a number of narrow slits extending about half-way around the cylinder, and the opening 8 in the outer cylinder extends the whole length of the cylinder and is formed with a gutter 9 along each of its edges. The plate 12 closing the bottom of the inner cylinder may be perforated.
Patent GB-476181-A (GB)
Title: Scanning disc for television transmitters
IPC: H04N5/06
Filed: 1936-06-09
Abstract: 476,181. Television. RADIOAKT.- GES. D. S. LOEWE. June 9, 1936, Nos. 16091 and 16092. Convention dates, June 11, 1935 and June 25, 1935. [Class 40 (iii)] With the object of obtaining interlaced scanning of a continuously moving kinematograph film and simultaneously to utilize the apertures for the generation of synchronizing signals of framing frequency at isochronous intervals, the apertures are arranged to form two or more spirals giving a total odd number of apertures, while the first aperture of each spiral lies on a line connecting the first and last of all the apertures, such line constituting a diagonal of the image area on the disc. During each scanning of an image the disc rotates as many times as there are spirals so that the apparent radial movement of the apertures is equal to but in opposite direction to the movement of the film. In the arrangement shown in Fig. 2, the apertures 1 .. 120, and 120.. 239 form two spirals, and the disc 23 revolves twice whilst each image is scanned. Thus, allowing for film movement, each spiral is capable of scanning the image area during one revolution, but a second disc 6 rotating at half the speed of the scanning disc 23 is provided with an obturating spiral 50 so that only one scanning spiral is effective. Consequently, during two revolutions of the disc 23 an image is scanned once by each spiral and the two sets of lines are interlaced. Synchronizing signals at line frequency are obtained by the passage of the apertures 1 .. 239 across a bright marginal line 5 of the image area 2, while signals at the framing frequency are derived by passage of an arcuate slot 7 across the line 5 in conjunction with apertures 8, 9 in the disc 6. The optical arrangement is shown in Fig. 5, with the discs 6, 23 rotating in the planes of intermediate images of the film 25 formed by the lens system 24, 25<1>, 10. In a modification, the disc apertures are arranged to form four spirals, and the disc revolves four times whilst each image is scanned. The synchronizing signals are separated at the receiver by amplitude filtering. The line signals may be derived by providing on lines joining the apertures to the centre of the disc a series of slots forming a light siren, but in this case it will be necessary to introduce at the receiver a frequency reducer, Fig. 6 (not shown), of ratio 1/n, where n is the number of spirals on the disc. Specification 465,184 is referred to.
Patent GB-200668-A (GB)
Title: Improvements in spring mattresses for bedsteads, seats and the like
IPC: A47C23/155
Filed: 1922-06-10
Abstract: 200,668. Peyton, Hoyland, & Barber, Ltd., and Biggin, F. June 10, 1922. Spring surfaces.-Spring surfaces for mattresses &c. are built up of L-shaped links which allow motion in two planes relative to the adjacent links. -Each link consists of two arms 1, 2, which may or may not be of equal length, having a loop 3 in the plane of the arms and downturned hooks 4, 5 at the end of each arm which engage, the adjacent links, longitudinally and transversely. In the form shown in Fig. 1, the mattress is built up from one side, the resultant transverse arms of the links at the finishing edge being connected by straight links 6 with a hook 8 at one end and an eye 7 at the other. In a modification, half the links are formed with the transverse arms oppositely disposed and the mattress is built from the edges towards the centre, the straight links connecting the opposing free transverse arms. Springs 10 are used to connect each end of each row of links to the mattress frame 9, either directly or by means of straight links 11 engaging the loops 3; side springs 12 may also be employed if desired.
Patent GB-529468-A (GB)
Title: Improvements relating to apparatus for roasting grain
IPC: F26B11/04
Filed: 1939-06-01
Abstract: 529,468. Rotary drying-drums. JEFFREY, R. June 1, 1939, No. 16133. [Class 34 (ii)] An externally heated drum for roasting grain is mounted on a hollow shaft 2 perforated at parts 3 so that water sprays may be used to cool the charge, and helical scrolls 4, 5 of opposite hand, and helical blades 6, are provided to feed the grain backwards and forwards. The charge is fed at an opening 7 and removed through an opening 8. Gas burners 10 heat the drum. and during the operation the front end is vented to a stack 12 by means of a pivoted conduit 14.
Patent GB-185841-A (GB)
Title: Improvements in and relating to phonographs, gramophones and like sound transmitting and reproducing instruments
IPC: G11B33/02
Filed: 1921-06-11
Abstract: 185,841. Mortimer, S. J., and Smith & Mortimer, Ltd. June 11, 1921. Sound magnifying and directing appliances.- When a removable machine 11 is in position in the cabinet, as shown, the sound-outlet of its internal horn 10 joins the smaller end of the horn 8 to form an extended amplifier.
Patent GB-221877-A (GB)
Title: Improvements in and relating to machines for bending and shaping wire or the like material
IPC: B21F45/00
Filed: 1923-06-21
Abstract: 221,877. British Thomson-Houston Co., Ltd., and Kingwell, K.. F. June 21, 1923. Addition to 202,073. Making metal fabrics.- The machine described in the parent Specification for making wire grids is provided with improved grippers and gripper-operating mechanism. The table 1 carries the bridge-piece 3 which is connected to the frame 2 by pillars 30 sliding in the frame and surrounded by springs 31 which normally keep the bridge and frame in contact. An arm 37 connected through lever mechanism to rollers 35 is operated to raise the bridge-piece when required. An arm 11 mounted on a central spindle 8 carries a wire gripper comprising jaws 38 built up of two pairs of scissor-shaped members connected by distance-pieces 39, the jaws being normally kept open by springs 40 and closed by means of a sliding sleeve 41 operated by a handle 44 and eccentrics 43. A block 47 on the underside of the bridge carries the fixed gripper comprising an outer jaw 48 mounted on a spindle 53 which is surrounded by a sleeve carrying the inner jaw 49. These jaws are normally kept open by a spring and are closed by means of cams 50 operated from a handle 55.
Patent GB-119326-A (GB)
Title: An Appliance for use in Domestic Fireplaces for Distributing Heat and Economizing Fuel.
Inventor: ROGERS THEODORE GEORGE STEWART
IPC: F24B1/188
Filed: 1917-11-06
Abstract: 119,326. Rogers, T. G. S. Nov. 6, 1917. Air-heating fittings.-An appliance for insertion into an ordinary fire-grate consists of horizontal and upwardly extending tube members joined by elbows, bends, or l i k e tabular junction pieces. In one form, Figs. 1, and 2, there is a single air inlet tube b and two outlet tubes d. In a modification, there are two inlet tubes, one at each side, and a single central outlet tube. Fig. 5 shows another form consisting of a coil or grid with an inlet tube b at one end and an outlet tube d' at the other. According to the Provisional Specification, the inlet and outlet tubes may be fitted to a chamber placed or fitted in the grate, and the outlet tubes may be prolonged and branched to conduct the heated air into another room.
Patent GB-1032877-A (GB)
Title: Process for the preparation of organosilicon compounds
IPC: C07F7/08
Filed: 1965-04-15
Abstract: A process for the preparation of organosilicon compounds comprises reacting (1) an organosilicon compound selected from (a) silanes <FORM:1032877/C3/1> and (b) siloxanes <FORM:1032877/C3/2> wherein R is alkyl, with not more than 4 C atoms, aralkyl, with not more than 4 ali-aliphatic C atoms and only one aromatic ring, alkaryl, with not more than 4 aliphatic C atoms, or aryl; X is halogen; m is 1, 2 or 3; n is 1,2 or 3; m+n is 2, 3 or 4; a=at least 1; p+a+b is at least 1, but not more than 3; e is at least 2, and the compound (b) has at least one Si-H group, on average, per molecule; with (2) an aromatic compound R1C6H4R1 wherein R1 is a tertiary alkyl radical having not more than 10 C atoms at such a temperature as to cause clearage of the aromatic compound (2) so that at least one hydrogen atom of the compound (1) is replaced by an aromatic radical from (2), with the formation of a compound of the general formula R1H.  The process goes via the reactions <FORM:1032877/C3/3> In general, substituent X will be a chlorine atom, but any halogen, including fluorine, is suitable. Radical R may be any as defined, preferred alternatives being Me, Et, phenyl, tolyl and xenyl.  When more than one R or X is present in a compound, these may be the same or different.  Examples of the silanes that may be used are dimethylchlorosilane; methyldibromosilane; methylbenzyl fluorosilane; triphenyl silane, methylsilane, propychlorosilane and phenylmethylsilane.  The siloxanes used may be disiloxanes or higher siloxanes, e.g. HXRSiOSiRXH, <FORM:1032877/C3/4> Suitably they are prepared by hydrolysis of halogeno compounds with condensation of the resultant silanol groups.  Examples are t-butyl, 1,1 - dimethylhexyl, 1,1 - diethylhexyl, 1,1-propylmethylbutyl. R1 is preferably t-butyl. The reaction proceeds above 350 DEG  C., and preferably below 650 DEG  C. The range 400-550 DEG  C. is usually the optimum.  The use of elevated pressures is recommended, and any pressure vessel of an inert material is used to contain the reaction.  The product is a mono- or disilyl benzene.
Patent GB-1097551-A (GB)
Title: Method for making graded composition mixed compound semiconductor materials
IPC: H01L29/207
Filed: 1965-04-15
Abstract: <PICT:1097551/C1/1> A semi-conductor material of the formula AlaGabIncPdAseSbf, wherein a + b + c = 1 and d + e + f = 1, deposited on a substrate, is prepared by heating at least one of the elements Al, Ga or In in a first part of a reaction vessel, injecting a stream of at least one halide of the elements P, As or Sb into said first part-the said stream containing the halides of at least two of the Group V elements if only one of Al, Ga or In is used, and at least two of Al, Ga or In if only one halide is used-and transporting the reaction product to a second part of the reaction vessel containing the substrate heated to a temperature sufficient to cause the deposit of the mixed composition product.  A product having layers of different or changing composition is prepared by terminating or varying the flow of one or more of the halides, e.g. by varying the rate of flow of carrier gas or varying the temperature of the halide. The Group III element may be heated to 600-1300 DEG  C. and the substrate to 450-1100 DEG  C.  The substrate may be Ge or GaAs.  An N-type sulphur-doped product may be formed by adding H2S to the carrier gas, and a P-type product by adding Zn or Cd to the element, or a suitable form thereof to the halide.  An apparatus for use with one Group III element is shown in Fig. 1, wherein the element is heated in the first part 13, and two halides are carried thereover, in a carrier gas, e.g. H2, which then carries the product over the heated substrate 34 contained in the second part of the apparatus. Similar apparatus having more than one first part, Fig. 2 (not shown), may be used when more than one Group III element is required in the product.
Patent GB-570535-A (GB)
Title: Improvements in and relating to methods of drying plastic materials formed of powdered metal and a plasticising medium
IPC: F26B7/00
Filed: 1943-10-06
Abstract: 570,535. Drying. BRITISH THOMSONHOUSTON CO., Ltd., (General Electric Co.). Oct. 6, 1943, No. 16360. (Class 34 (ii)] A plastic mixture of metal powders, such as tungsten carbide and cobalt or the like, and a plasticising medium, e.g. a mixture of starch and glycerine is dried by embedding the material in table salt or pure sodium chloride and then heating it at a temperature sufficiently high to remove any moisture therefrom, e.g., progressively from about 40‹C to 180‹C. The material is preferably heated in hydrogen or other neutral or inert gas, and the rate of drying may be controlled by mixing fused alumina with the salt. U. S. A. Specification 2,271,960 is referred to.
Patent GB-708945-A (GB)
Title: Hydroforming process
IPC: C10G35/06
Filed: 1951-07-10
Abstract: Hydrocarbons of motor fuel boiling range are hydroformed by contacting with a catalyst comprising 4-15 per cent molybdena on activated alumina that has been treated with steam at 600-130- DEG F. and 20-100 p.s.i. for 10-50 hours, the hydroforming being effected at 800-1000 DEG  F. and 50-1000 p.s.i. in the presence of 1000-4000 c.ft. of hydrogen-containing gas per barrel of feed. The catalyst may include 0.5-5 per cent by weight of silica.  It may be prepared by hydrolysis of an aluminium alcoholate, e.g. with a silica hydrosol, and impregnation with ammonium molybdate as described in Specification 663,128.  The steam treatment may be effected on the fluidized catalyst or a fixed bed.  Activation prior to steaming is optional.  Hydrogen or recycle gas of 50-70 vol. per cent hydrogen is passed through the reactor, and fixed bed, moving bed or fluid catalyst may be used.  Examples describe the hydrolysis of aluminium amylate with water or silica hydrosol, and impregnation with ammonium molybdate to yield catalysts containing in parts by weight: 5 MoO3-95 Al2O3, and 10 MoO3-85.5 Al2O3-4.5 SiO2 respectively.  Comparative data are given for hydroforming with these catalysts both with and without the steam pretreatment.ALSO:A catalyst for hydroforming hydrocarbons of motor fuel boiling range comprises 4-15 per cent. molybdena on activated alumina that has been treated with steam at 600-1300 DEG F. and 20-100 p.s.i. for 10-50 hours, the hydroforming being effected at 800-1000 DEG F. and 50-1000 p.s.i. in the presence of 1000-4000 c.ft. of hydrogen-containing gas per barrel of feed. The catalyst may include 0.5-5 per cent. by weight of silica.  It may be prepared by hydrolysis of an aluminium alcoholate, e.g. with a silica hydrosol, and impregnation with ammonium molybdate as described in Specification 663,128.  The steam treatment may be effected on the fluidized catalyst or a fixed bed.  Activation prior to steaming is optional.  Examples describe the hydrolysis of aluminium amylate with water or silica hydrosol, and impregnation with ammonium molybdate to yield catalysts containing in parts by weight: 5 MoO3 - 95 Al2O3, and 10 MoO3 - 85.5 Al2O3 - 4.5 SiO2 respectively. Comparative data are given for hydroforming with these catalysts both with and without the steam pretreatment.
Patent GB-235022-A (GB)
Title: Improvements relating to magnetic type speedometers and speed indicators
IPC: G01P3/495
Filed: 1924-07-08
Abstract: 235,022. Higginson, J. July 8, 1924. Electric and magnetic speed indicators.-In an eddy-current speed indicator, two annular magnets a, b, separated by a spacer d and having their pole gaps at opposite points are mounted on a carrier c which rotates on a fixed spindle h and is driven by gearing e, f. A graduated armature k partially surrounding the drag element j is axially movable for the purpose of adjusting the instrument. It may be adjusted automatically according to temperature conditions. The drag element i is restrained by an adjustable spring s and a stop pin determines its zero position. According to the Provisional Specification the armature k may be gapped. Mileage counters are provided.