baber/WOPTO huggingface dataset:
Patent GB-889413-A (GB)
Title: Automatic calibration system
Inventor: STRYKER EDWIN MANNING
IPC: G05B23/02
Filed: 1960-05-24
Abstract: 889,413. Electric measuring systems; electric selective signalling systems. COLLINS RADIO CO. May 24, 1960, No. 18326/60. Class 40 (1). The receiver of an electrical correspondence control system is periodically checked by feeding in a calibrated value of the variable and ensuring that the servomotor output shaft rotates to the correct angular position. As shown (Fig. 2), a signal from a source 10<SP>1</SP>, whose frequency is proportional to the value of a variable, is fed through a discriminator 37, and amplifier 14<SP>1</SP> to servomotor 16<SP>1</SP>, which adjusts a capacitor 39 in the discriminator 37 until the error signal input to amplifier 14<SP>1</SP> is eliminated. The output shaft of the motor is also coupled to a notched disc 18<SP>1</SP> through a slipping clutch 19<SP>1</SP>. Periodically a timer 24<SP>1</SP> switches the frequency discriminator 37 to a calibrated oscillator 38, and energizes a solenoid 23<SP>1</SP> to release a pawl 211 and allow it to rest on the surface of the notched disc 18<SP>1</SP>. The oscillator frequency is firstly (f- #f), then (f + #f) to ensure that the servomotor shaft passes through that position appropriate to frequency f, at which the pawl 21<SP>1</SP> falls into the notch 22<SP>1</SP> and holds the output shaft, while oscillator 38 is finally switched to frequency f, to ensure correct relationship between frequency and angular rotation, before the timer 24<SP>1</SP> transfers the input signal to source 10<SP>1</SP>.
Patent GB-209122-A (GB)
Title: Improvements in sound producing devices
IPC: G10K7/06
Filed: 1922-07-04
Abstract: 209,122. Northey, J. P. July 4, 1922. Sirens; sound magnifying and directing ap. pliances.-In a siren in which a piston 5, Fig. 1, having sound-producing orifices in its walls reciprocates within a cylinder 3 with corresponding orifices, the cylinder is adjustable longitudinally so as to vary the number of times the orifices come into engagement during each double-stroke of the piston, so varying the pitch of the note emitted. In the example shown, the orifices either coincide at the end of a stroke in one direction, or in the middle of the strokes in both directions, thus giving notes an octave apart. The piston is reciprocated by compressed air in known manner by means of a grooved enlargement 7 engaging with an annular cylindrical extension 8 of the casing, whilst its open end and the corresponding part of the cylinder 3 are of slightly-reduced diameter, the arrangement being such that, on assembly, the open end of the piston enters the reduced portion of the cylinder at about the same time that the enlargement 7 enters the extension 8. The movement of the cylinder 3 is effected by a rock-shaft 13 extending through the inner part of the piston which is made of open formation separated from the orificed portion by a diaphragm 9, a cam 14 on the shaft 13 engaging notches 15 in slots 16 in the cylinder wall. Fig. 4 shows means for automatically rocking the shaft 13 to produce changes of note at definite time-intervals. A continuously-rotating cam wheel 31 periodically opens a valve 35 to connect the air inlet 38 to the right-hand side of a piston 46. The lefthand side of the piston is also connected to the compressed air supply through a passage 48 leading to the chamber 11, Fig. 1, but the larger area on the right-hand side causes the piston to move inwards and rock the shaft 13. In order that the sound-emitting horn 10 may resound to both notes, a perforated band 56 is arranged to open or close corresponding perforations 55 in the horn. The band 56 may be automatically oscillated in synchronism with the change in pitch by means of levers 57, 59 connected to the shaft 13.
Patent GB-932970-A (GB)
Title: Improvements relating to the cleaning and phosphate coating of metallic surfaces
Inventor: FREEMAN DENNIS BRIAN
IPC: C23C22/78
Filed: 1961-05-19
Abstract: An aqueous alkaline solution for cleaning metals comprises an alkali metal metaborate and an alkali metal silicate in a preferred weight ratio of Na2O:(SiO2+B2O3) of 0,9:1 to 1,9:1, a weight ratio of B2O3:SiO2 of 0,2:1 to 0,8:1, and a silicate concentration (expressed as sodium metalsilicate) of 1-20 g./l. The solution may also contain up to 10% by weight of a surface active agent such as condensates of ethylene oxide with alkyl phenols, alcohols and fatty acids.  The preferred surface active agent consists of a combination of an alkyl phenol ethylene oxide condensate with 8-11 ethylene oxide units, an alkyl phenol ethylene oxide condensate with 1-3 ethylene oxide units and a fatty alcohol ethylene oxide condensate in which the fatty alcohol has 16-18 C atoms and is condensed with 50-80 ethylene oxide units.  0,0005-0,025% w/v of Ti may also be present. Specifications 560,847, 560,848, 878,307, 916,203 and U.S.A. Specification 2,874,081 are referred to.ALSO:Prior to phosphating, a metal is cleaned in an aqueous alkaline solution containing an alkali metaborate and an alkali metal silicate in a preferred weight ratio of Na2O:((SiO2 + B2O3) of between 0.9 : 1 and 1.9 : 1, a weight ratio of B2O3:SiO2 of between 0.2 : 1 and 0.8 : 1 with the concentration of the silicate expressed as sodium metasilicate between 1 and 20 g./l.  The solution may also contain up to 10% by weight of a surface-active agent such as a condensate of ethylene oxide with alkyl phenols, alcohols or fatty acids.  0.0005-0.025% w./v. of Ti may also be present.  The solution is sprayed on to the metal at 60-160 DEG  F.  The preferred surface-active agent consists of a combination of an alkyl phenol ethylene oxide condensate with 8-11 ethylene oxide units, an alkyl phenol ethylene oxide condensate with 1-3 ethylene oxide units and a fatty alcohol ethylene oxide condensate in which the fatty alcohol has 16-18 carbon atoms and there are 50-80 ethylene oxide units. Phosphating is preferably effected by spraying an acid solution of zinc phosphate of low "pointage" of e.g. 6-10 points.  The solution contains a nitrite ion as accelerator and also the nitrate ion.  The process is particularly applied to rimming steel.  Specifications 560,847, 560,848, 878,307, 916,203 and U.S.A. Specification 2,874,081 are referred to.
Patent GB-530466-A (GB)
Title: Improved firework toy
IPC: A63H33/00
Filed: 1939-06-24
Abstract: 530,466. Firework toys. STANDARD FIREWORKS, Ltd., and GREENHALGH, K. June 24, 1939, No. 18431. [Class 132 (iii)] [Also in Group XVII] The container of a firework toy is so fashioned that after the contents have been discharged, it can be used as a miniature "Punch and Judy Show." An open-topped tubular-member b suitably decorated is secured to a base a and has a back opening b<SP>2</SP> adapted to be covered by a flap c hinged to the base. Surrounding member b is a sleeve member d which can be slid upwards to an extent limited by flexible strips e, e.g. of paper, and which has two flaps d<SP>1</SP> folding outwards or inwards to form a proscenium opening. The lower end of the container contains a bursting charge suitably fused and the container is filled with "Punch and Judy" characters, or other toys which break a sealing member f on explosion.
Patent GB-717632-A (GB)
Title: Improvements relating to pneumatically operated hydraulic braking apparatus for vehicle braking systems
Inventor: BRACKENBURY ALOYSIUS GRAHAM
IPC: F16D65/74
Filed: 1952-07-22
Abstract: 717,632. Hydraulic brakes. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. June 26, 1953 [July 22, 1952], No. 18550/52. Class 103(1) A brake cylinder for vehicles incorporates an hydraulic intensifier unit which is operated pneumatically by compressed air or vacuum so that no hydraulic piping is necessary and the risk of liquid leakage is reduced. The compressed air or vacuum from the brake control valve acts against a piston 1 reciprocal in a cylinder 2 in communication with a hydraulic reservoir 9. In the rearmost position of the piston 1, liquid can flow from chamber 2a to chamber 6a in front of the reduced inner end of the piston through holes 7. When a brake application is initiated by air pressure at connection 27. The first movement of piston 1 cuts off holes 7 and the pressure of liquid in chamber 6a acts against the piston 14 of a slack adjusting unit. Movement of piston 14 compresses liquid in chamber 13a which passes through holes 19 and acts against the inner face of a piston 20 which bears against a power ram 22 acting on the brake blocks. The space 13a behind the piston 14 when this is in its left hand position, corresponds to the liquid displacement necessary to take up the normal brake shoe clearance. If piston 14 reaches the end of its travel before the clearance has been taken up, liquid can flow past the non- return valve 18. If on the return stroke the piston 14 should reach its endmost position before the piston 5 has uncovered ports 7, liquid may flow from chamber 2a to chamber 6a past a non-return valve 12 in the piston 5.
Patent GB-702319-A (GB)
Title: Improvements in or connected with pumps for elevating liquid, sludge or the like
IPC: F04D3/00
Filed: 1952-07-23
Abstract: 702,319. Screw pumps. TANGYES, Ltd. (Agmed, F. R.). July 23, 1952, No. 18566/52. Class 110 (1) In a pump for liquid, sludge or the like in which the impeller 19 is normally submerged, the lower end of the impeller shaft 14 engages anti-friction thrust and journal bearings 12, 13 which are housed within a hollow cylindrical pedestal 11 which is engaged -telescopically by a cover 15 incorporating a liquid seal surrounding the shaft. The liquid seal comprises a rubber washer 17 having annular flanges 17a, 17b which engage corresponding annular grooves in the cover 15. The washer 17 is tightened against the shaft 14 by means of a hose clip 18. A mild steel thrust collar 21 on the upper end of the shaft 14 works against a bronze bearing 20.
Patent GB-691840-A (GB)
Title: Improvements relating to fumigating apparatus
IPC: A01M13/00
Filed: 1951-08-07
Abstract: 691,840. Fumigating apparatus. HOOVER, Ltd. Aug. 7, 1951 [Aug. 11, 1950], No. 18575/51. Class 81 (i). Fumigating apparatus comprises a small open ended air-pervious sack containing sublimating fumigating material, a suction cleaner blower pipe inserted in the neck of the sack, and means encircling the neck of the sack to gather it close around the blower pipe and to hold it in position. As shown, a paper sack 11 similar to a grocery bag and having a tie string 16 secured near its mouth by means of an eyelet fastener 17 with associated washer 18, is 2/3 filled with crystals of p-dichlorobenzene 12. The top portion 25 is folded down along the side of the filled portion, the tie string being accommodated within the fold. The folded sack is placed in a cardboard container 13 which is encased in an impervious envelope 14 of e.g. Cellophane (Registered Trade Mark), waxed paper and laminated foil, which in turn is encased in an outer decorative envelope 15, preferably of impervious material. In use, the wrapping 13, 14 and 15 are removed and the end of a blower pipe 19 of a suction cleaner is inserted in the neck of the sack. The tie string is wound about the folded neck of the sack below the fastener 17, around the blower pipe 19 above the sack neck and finally around the fastener 17.
Patent GB-498472-A (GB)
Title: Improvements in or relating to a method of and apparatus for heat treating metal strip, wire or flexible tubing
IPC: C21D9/56
Filed: 1937-07-05
Abstract: 498,472. Automatic control systems. WEBSTER, W. R. July 5, 1937, No. 18657. [Class 38 (iv)] Temperature.-In the heat-treatment of metal strip, wire or flexible tubing in which the metal strip &c. is moved past a heating source, the speed of movement of the metal is controlled in accordance with the temperature outside the heating source as it leaves the latter so as to maintain the temperature of the metal substantially constant as it moves past the heating source. The speed of movement of the metal is continuously controlled by variable speed means which are controlled by a temperature responsive device, such as a pyrometer, mounted outside said heating source and adjacent to its exit end. In the treatment of wire strip, the latter passes from a coil N round a roller E and thence round a drum A of heat resisting material, either heated interiorly by burners H or exteriorly by resistance elements S arranged in an oven W and round a roller E<1> from which it passes to a winding device I driven from a motor J. To maintain a uniform degree of contact between the strip and the surface of the drum, an adjustable tensioning device Q is provided. The speed of the drum is controlled in accordance with the temperature of the strip by a pyrometer P connected by wires 1, 2 to a suitable electrical balancing device 11 comprising a controller device 11a with a control setter 11c, which is set to the desired temperature of the strip, the device 11 being connected to a reversible motor 11b coupled to a worm 12 and worm gear to the regulator 14 of a change-speed gear G. The shaft 15 of the gear G is driven by a motor and the drum A is driven by a chain 16<1> passing over sprockets on the shaft 16. In a modification, Fig. 2, the motor 11b drives a crank 25 connected by a link 26 to a crank 27 coupled to and tilting roller discs 23, 24 which bear on the concave surfaces of input and output discs 19, 20 of the change speed gear Y, pinch rolls F being driven by a chain 21<1> from a shaft 21 coupled to the disc 20. In a third modification, the metal strip is drawn through an electric or similar oven by a winding block which is driven by a motor whose speed is controlled by a, rheostat the cranked arm of which is connected to an electric control unit similar to 11 and connected to a pyrometer.
Patent GB-779309-A (GB)
Title: Improvements in and relating to cell holders for spectrophotometers
IPC: G01N21/03
Filed: 1955-06-28
Abstract: 779,309. Spectrophotometers. NATIONAL RESEARCH COUNCIL. June 28, 1955 [July 19, 1954], No. 18707/55. Class 97(1) [Also in Group XIII] In a cell-holder for a spectrophotometer in which the temperature is maintained constant by a flow of liquid therethrough the liquid can flow over five sides of a metal inner compartment 11 carrying the test cells and, an outer liquid tight compartment 10 is provided with a heat insulating layer 17 to stabilize the thermal gradients. Preferably, the outer compartment 10 is mounted in an outer casing 18 and is slidable therein on guides 19 so that when the casing 18 is fixed to a spectrophotomoter each of a number of quartz test cells, carried in a metal cradle in the inner compartment, can be aligned with the light beam of the spectropnotometer. Movement is imparted to the outer compartment 10 by turning nut 27 which makes a thread engagement with a coarse pitch: screw 28 by means of a hardened steel stud 29. Springldetent 30 engages locating holes 31 (not shown) in screw 23 as each cell is brought into the correct position. Layers of brass 14a may be provided on a heat insulating lid 13 and the outer compartment may have a liquid-tight brass lining 16. Water from an accurately thermostatically controlled bath may enter the outer compartment from the side, by pipe 23 as shown, or, alternatively, from the bottom, and the extension of the exit pipe 24 near to the top of the compartment prevents: air from being entrained in the circulating stream of water.
Patent GB-1037062-A (GB)
Title: Improvements in or relating to organic compounds and their method of preparation
IPC: C07C15/14
Filed: 1963-05-10
Abstract: Ethylterphenyls, liquid at normal temperatures, having a b.p at atmospheric pressure above 400 DEG  C. and an average M.W. of 290 to 350, are prepared by injecting gaseous ethylene into a liquid mixture containing at least one terphenyl and a Friedel-Crafts catalyst, the reaction being carried out with agitation at atmospheric pressure without the addition of a solvent for the terphenyl, the reactants being maintained at 100 DEG  - 180 DEG  C.  The catalyst used is preferably a metallic chloride, e.g. AlCl3, ZrCl4 or FeCl3 and is used preferably in amounts of 0.3% to 3.0% by weight of the material to be alkylated.  The gaseous ethylene may contain 1 to 10% by volume of a promoter, e.g. dry gaseous hydrogen chloride or a gaseous aliphatic chloride.  The product alkylate may be fractionated and the overhead fraction may be recycled to the reactor.  The average degree of alkylation (this term is defined) is between 2 and 4. The ethylterphenyls, which may be in isomeric mixture may be used as heat transfer liquids for moderators in atomic reactors.
Patent GB-384929-A (GB)
Title: Improvements relating to winding gear for hay-rick lifters
IPC: B66C11/24
Filed: 1932-07-04
Abstract: 384,929. Winding-gear for hay-rick lifters. DICKIE, T., Victoria Implement Works, East Kilbride, Lanarkshire. July 4, 1932, No. 18815. [Classes 78 (iv) and 78 (v).] In a rick cart 3 provided with inclined winding drums 1 connected with a coupling shaft 4 by universal joints, these joints are of a form which prevents end movement of the drums. As shown in Fig. 3, a ring 6 is pivoted on a pin 9 extending through the coupling shaft 4, and is fitted with trunnion pins 8 journalled in the end of the drum 1. In a modification, Fig. 4 (not shown), the trunnion pins 8 are journalled in a coupling member on the end of the shaft 4, and the pins 9 are mounted in the end of the drum which is of reduced diameter.
Patent GB-190509-A (GB)
Title: Improved apparatus for facilitating the starting of multi-cylinder internal combustion engines
IPC: F01L13/04
Filed: 1921-07-12
Abstract: 190,509. R÷ssler, L. July 12, 1921. Addition to 157,161, [Class 7 (v), Internal-combustion ergines, Starting &c.]. Regulating.-I n a multicylinder Diesel or other engine in which compression-relief devices acting upon the exhaust valves are brought out of action in succession by a common controlling-means, an auxiliary shaft 1 independent of the cam shaft is adjusted angularly to bring relief cams 2,3,4 out of engagement with the exhaust-valve stems in succession. The shaft 1 may be turned by a lever 5 cooperating with notches 9 - - 12 and actuated by hand, or by a hydraulic or compressed-air cylinder 6.
Patent GB-184969-A (GB)
Title: Thread cutters
IPC: D05B91/04
Filed: 1921-07-12
Abstract: 184,969. Parsons, H. J. July 12, 1921. Thimbles.-A ball-ended cutter-blade 9 of tapering triangular cross-section is fastened to a thimble or ring with its cutting edge towards the support, the free end of the blade being spaced away from the support.
Patent GB-1336534-A (GB)
Title: Pantograph copy milling machine with drawing-tracing device
IPC: B44B3/00
Filed: 1972-04-24
Abstract: 1336534 Copy-milling FRANZ KUHLMANN KG 24 April 1972 [30 April 1971] 18913/72 Headings B3K and B3B A pantograph copy-milling machine comprises an electronic optical reading head 1, Fig. 1, or a photo-electric reading head 18, Fig. 4, which automatically traces the drawing contours on a table 7 or 12 respectively, the horizontal motions of the head, or of the table, being transmitted through a linkage to the tool pantograph 10. Head 1, Fig. 1, is mounted for vertical adjusting on the frame of the machine, and table 7 is adapted to be moved in the X and Y directions on guides 4, 5, by servometers 2 and 3. Table 12, Fig. 4 is fixed, and head 18 is moved in the X direction on a cross slide 14 by a servomotor, and the cross slide is moved in the Y direction on guides 13 by a second servomotor 15. In operation, the drawing table is moved passed the head 1 or 14, which follows the contour of the drawing, and this movement is transmitted to the tool by the pantograph.
Patent GB-879899-A (GB)
Title: A process for manufacturing polymonoolefines
IPC: C08F10/00
Filed: 1960-05-27
Abstract: A process for polymerizing mono-olefines comprises introducing a stream of monoolefine, gaseous at polymerization temperature, into the first zone of a series of reaction zones at 30 DEG -120 DEG C., compressing the stream leaving a reaction zone before entering the subsequent zone so that the partial pressure of monoolefine is maintained substantially constant, introducing an organic diluent and a catalyst to the last of the said zones to flow counter-current to the mono-olefine stream and taking off polymer solution or suspension from the first zone; the catalyst being formed by mixing an organo-metallic compound of a Group I, II or III metal with a halide of a Group IVa, Va or VIa metal.  The process is applicable to the polymerization of ethylene, propylene or butene containing inert gases, which are drawn off with unreacted monomer.  Special features disclosed are apparatus wherein the reaction zones are of the same volume, apparatus wherein the volumes of the reaction zones decrease in the direction of flow of the mono-olefine, the recycling of recovered diluent, the addition of further organo-metallic catalyst component to reaction zones, and the use of the following complexes as catalyst components, KZn (C2H5)3, NaZn (C2H5)3, NaZn (C2H5)2 (C6H5), LiZn (C2H5)3, CaZn (C2H5)4, and CaCd (C2H5)4.
Patent GB-1280978-A (GB)
Title: Ship stern fitted with twin-screw propulsion
IPC: B63B1/08
Filed: 1970-04-21
Abstract: 1280978 Form of stern ULJANIK BRODOGRADILISTE I TVORNICA DIZEL MOTORA 21 April 1970 [21 April 1969] 18988/70 Headings B7A and B7V Each side of the plane of symmetry E-E of a ship's stern 1 comprises an inclined side wall, a bottom wall, and a bulb 4 for supporting propeller shafting and located at the junction of the two walls over a portion of the length of the stern, the two walls or their extensions meeting in aline g termed the generatrix. The two walls and their extensions define with the plane of symmetry and the deck above the stern a transverse section generally trapezoidal in shape. The generatrix is located within the bulb over substantially the whole of the bulb length. The main engines 8 can be located partly in each bulb.
Patent GB-221321-A (GB)
Title: Improved barbed wire
IPC: B21F25/00
Filed: 1923-07-24
Abstract: 221,321. Borgarello, O. P. July 24, 1923. Barbed fencing.-Barbed wire is formed from plain wire A on the outer surface of which incisions or cuts are made, producing tongues B which constitute barbs, the barbs being arranged in spiral form on the outer surface of the wire, six barbs in every series. Reference has been directed by the Comptroller to Specification 3144/82.