baber/WOPTO huggingface dataset:
Patent GB-296567-A (GB)
Title: Improvements relating to electrically operated wind screen wipers
IPC: B60S1/08
Filed: 1927-09-21
Abstract: 296,567. Lucas, Ltd., J., and Mason, S. A. Sept. 21, 1927. Rotary machines; motors with unwound iron armatures. - In an electrically-operated windscreen cleaner in which the wiper arm is oscillated by means of a rotating armature the shaft b of which is provided with a cam a for actuating spring contacts d, e, means are provided whereby the contacts can be separated independently of the cam. As shown, the shaft b is slotted to receive a pin h secured to a slidable finger piece g which is pressed outwardly by a spring j. The finger piece, when pressed inwardly, engages a projection k on a contact blade f and separates the contacts d, e, the end of the projection seating in a groove I. An additional resilient projection m may be provided for engagement in the groove l.
Patent GB-871382-A (GB)
Title: Improvements in or relating to methods of manufacturing waveguide structures
Inventor: WOOD JOHN DENNY
IPC: H01P5/16
Filed: 1958-08-01
Abstract: 871,382. Waveguides. GENERAL ELECTRIC CO. Ltd. July 20, 1959 [Aug. 1, 1958], No. 24963/58. Drawings to Specification. Class 40(8) [Also in Group XXII] The description is substantially the same as in Specification 871,383 but the claims relate to a method of manufacturing a waveguide structure. Specification 871,381 also is referred to.
Patent GB-241202-A (GB)
Title: Improvements in time element systems for controlling electric circuits
IPC: H01H71/44
Filed: 1925-10-07
Abstract: 241,202. British Thomson-Houston Co., Ltd., (Assignee of Hull, C. S.). Oct. 9,1924, [Convention date]. Electrically-actuated valves.-A master switch controls switch mechanism, including two timedelay devices so that a circuit may close a predetermined time after closing the master switch and remain closed for a predetermined time. Both intervals may be independently adjustable. The system may be applied to the control of an electrically-operated valve supplying spray water to a centrifugal sugar washer to facilitate regulating the spray admission to suit the grade of sugar, the master switch being closed upon moving the controller of the motor driving the machine to full-speed position, the master switch 14 by winding 19 closes contact 15, whilst winding 20 drives a constant speed motor which permits contact 26 to close after a time interval. The winding 19<a> then closes contact 15a, closing the controlled circuit e.g. that of the coil 10 operating the valve, whilst the winding 20<a> operate a constant speed motor which permits contact 16a to open after a second time interval. A suitable construction of time-delay switch is described in Specification 188,613, [Class 38 (v),. Electric switches &c.], which is referred to.
Patent GB-502359-A (GB)
Title: Improvements in protective devices for forced circulation boilers and other apparatus in which fluid is circulated under pressure
IPC: F22B29/02
Filed: 1937-09-15
Abstract: 502,359. Controlling dampers and fuel supply to boiler furnaces. HOPKINSONS, Ltd., BROWN, R. L., and DALE, W. B. Sept. 15, 1937, No. 25060. [Class 51 (i)] [Also in Groups XIII and XIX] A protective device for a forced-circulation boiler a or other apparatus in which a fluid is maintained under pressure and is circulated by a pump b or other means comprises a piston d both sides of which are exposed to the fluid pressure, the areas of the piston andits rod being such that the piston is not moved until the differential pressure across the pump falls below a certain predetermined value. The piston may operate a switch or mechanical device to start up an auxiliary pump, close dampers, shut off the fuel supply or sound an alarm.
Patent GB-1188779-A (GB)
Title: Parking Meter with Coin Observation Windows.
IPC: G07F17/24
Filed: 1968-05-27
Abstract: 1,188,779. Parking meters. KIENZLE APPARATE G.m.b.H. 27 May, 1968 [6 June, 1967], No. 25237/68. Heading G4V. A parking meter with observation windows for at least two successive coins has stop members projecting into the coin channel to retain the coins in the windows until the next coin is inserted. Insertion of the next coin causes the fingers to release the leading coin to the coin box and the second coin moves to the window occupied by the first. An inserted coin M1, Fig. 1, engages a lever 6 to release a rotatable plate 2 carrying three equally spaced cams 3 (two not shown) at its perimeter. The cam shown drives the coin along a channel 2<SP>1</SP>, Fig. 2, formed by a fixed plate 1 and the plate 2, and under a finger 10 projecting into the channel 2<SP>1</SP> through the plate 1. An arm 13 connected to the finger 10 is pivoted towards the plate 1 to pivot a spring loaded rocking member 15, the member having arms 17, 18, which then move away from the plate. Fingers 17, 18 on the arms normally project into the channel 2<SP>1</SP> below two of three (only two shown) coin observation windows 4, Fig. 1, formed in the plate 1 and these are then withdrawn. When the fingers 17<SP>1</SP>, 18<SP>1</SP> withdraw, a coin M3 drops away into a coin box and a coin M2, supported by a leaf spring 21 fixed to and projecting through the rotating plate 2, moves to take its place. The coin M1 disengages the finger 10, permitting the fingers 17<SP>1</SP>, 18<SP>1</SP> to re-enter the channel 2<SP>1</SP>, and is moved with the plate 2 and supported by the corresponding spring 21 (not shown) to rest against the fingers 18<SP>1</SP>. The windows 4 permit observation of the last two inserted coins. If a thin tool is inserted to engage the lever 6, the finger 10 is not operated and as the cams pass outside the coins M2, M3 these remain held by the fingers 17<SP>1</SP>, 18<SP>1</SP>, the springs 21 riding up and over the respective coins.
Patent GB-252404-A (GB)
Abstract: 252,404. Eberman, L. May 23, 1925, [Convention date]. Starting.-A two-stroke engine is provided with a slide valve c controlling inlet by passages i, h to the pump chamber b, and discharge through passage h, reservoir k, and transfer passage l. For starting, a hand valve m is moved to shut off the passage i from the atmosphere at n and connect it to a pipe o leading to a compressed-air reservoir p, air from which is then used expansively on the pump piston.
Patent GB-1417819-A (GB)
Title: Mixed regenerative and rheostatic braking of an electric motor
IPC: B60L7/22
Filed: 1974-06-06
Abstract: 1417819 Braking DC motors SIEMENS AG 6 June 1974 [7 June 1973] 25253/74 Heading H2J A circuit for operating a D.C. electric motor 3 may be connected in an arrangement to provide rheostatic and regenerative braking and comprises a D.C. chopper circuit 10 connected in parallel with the motor 3, at least two brake branches each comprising the series connection of a resistor 11, 13 and a controllable switch 12, 14, and a rectifier 17 in the series with the motor and poled to pass regenerative current back to source terminals 15, 16. A capacitor 19 is connected across the supply lines and the voltage U c  across this is compared with a reference U c * at 20 and when it exceeds the reference, gating signals are procuded at 21 for the thyristors 12, 14. Receipt of these gating signals by the thyristors 13 controlled at switches 22, which are preferably logic gates, Fig. 4 (not shown), under the control of a comparator 24 fed with two different references signals I 1 * and I 2 * representatative of particular braking currents, and with either the actual braking current I or a theroetical value Is derived at potentiometer 27 and either one of the thyristors, or both is connected to the pulse source 21 as a consequence of this comparison. In operation when the braking circuit as illustrated is selected, during an on period of the chopper 10 the braking current builds up and when the chopper is turned off it passes regneratively via the diode 17 and stabilizing resistor 6 back to the source. If the voltage across capacitor 19 rises above the reference value, one or both of the thyristors 12, 14 is gated according to the value of the braking current, via selector gates 22 to introduce rheostatic braking. Braking current is built up again in a subsequent on period of the chopper 10. The pvovision of two rheostatic braking paths enables the values of the braking resistance and that of the stabilizing resistor to be more near to optimum values in any event.
Patent GB-422429-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/02
Filed: 1933-09-12
Abstract: 422,429. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, Middlesex, and McGEE, J. D., 9, King's Avenue, Ealing, London. Sept. 12, 1933, No. 25259. [Class 39 (i)] Cathode-ray tubes with a glass envelope in the form of a cylinder 1 and a frusto-conical or enlarged part 2 are provided with an electrode having a tubular portion 10 and fingers 11 radiating outwardly from the axis of the portion 10 and extending into the part 2. The portion 10 is mounted as a sliding fit in the cylinder 1 and the fingers 11 lie against the part 2 and extend over the whole length, or preferably part only, of the part 2. The electrode 10, 11 screens the ray from wall charges and acts as an anode, for example, as the second anode of a tube in which the first anode 6 is a sliding fit in an inner glass tube 8 containing also the modulating electrode 5 and the indirectly-heated cathode 4 shaped as a pill-box. The electrode 10, 11 may be of sheet or perforated metal or wire mesh and is formed by forming slots over part of the length of a tube and bending out the fingers. The electrode may be introduced into the envelope before the fingers are bent out. An electrode comprising a tubular portion and a frusto-conical portion is referred to.
Patent GB-1304743-A (GB)
IPC: B23Q7/14
Filed: 1970-05-26
Abstract: 1304743 Endless conveyers REYNOLDS METALS CO 26 May 1970 [23 May 1969] 25264/70 Heading B8A Cams 21 for transfer between a number of can forming machines 22 and a can trimming machine 23 by an endless conveyer 35 are fed to the conveyer from each forming machine by corresponding transfer apparatus 20. Each transfer apparatus comprises a star-wheel 33 arranged to receive cans from its associated forming machine and to be driven thereby in synchronism therewith, an intermediate star wheel 37 arranged to receive cans from the star wheel 33 and to be driven at a similar or greater speed than said wheel 33 by the trimming machine, and a feed wheel 36 to transfer the cans between the intermediate wheel 37 and the conveyer 35 and to be driven in synchronism therewith by the trimming machine. The conveyer 35 is also driven by the trimming machine. Each wheel 33, 36, 37 has a number of article receiving pockets 80 each having a port 82 connected to a manifold 83 within each wheel which co-operates with an arcuate slot 96 in a stationary disc 86 arranged in abutting relation with one end of the wheel. The slot 96 is coupled to a vacuum source 101 such that the cans are held in their respective pockets only over the required length of arc of each wheel. An air jet may be associated with the wheel 36 to ensure a positive transfer of the cans to the conveyer 35. Guides 125, 126, 130 assist in the transfer of the cans between the respective wheels. The conveyer has a plurality of semi-circular can receiving pockets which may alternatively, Fig. 6 (not shown), be in the form of a straight sided trough with the leading side of which inclined outwardly to facilitate the discharge of the cans to the trimming machine.
Patent GB-1532202-A (GB)
Title: Off-set printing blocks
IPC: B41N1/08
Filed: 1977-06-16
Abstract: 1532202 Printing plates THYSSEN EDELSTAHLWERKE AG 16 June 1977 [25 June 1976] 25268/77 Heading B6C [Also in Division G2] An offset printing method uses a printing plate comprising a magnetizable ferrous metal sheet, e.g. a ferritic stainless steel, plated with aluminium secured by magnetic forces to a magnetic cylinder in the printing machine. The image may be applied by conventional photographic techniques to the Al surface.
Patent GB-172386-A (GB)
Title: Improvements in or connected with apparatus for separating solid particles from air
IPC: B04C5/26
Filed: 1920-09-02
Abstract: 172,386. Robinson & Son, Ltd., T., and Robinson, C. J. Sept. 2, 1920. Density separators. -Apparatus for removing solid particles from air consists of two separators 1, 2 with fans 3, 5 for creating low pressures in t h e chambers and rotary discharge valves 10 f o r the separated solids. The chamber 2 is of larger capacity than the chamber 1 its cylindrical portion being made taller than that of the first chamber. The air is introduced tangentially into the chamber 1, the coarse particles are left in this chamber, and the air is conveyed through the conduit 4 to the chamber 2, where the finer particles are collected and the clean air is discharged through the orifice 6.
Patent GB-357349-A (GB)
Title: Improvements in traction wheels
IPC: B60B15/02
Filed: 1930-08-25
Abstract: 357,349. Tractor wheels. FORTESCUE, A. J., Loftus Street, Arncliffe, near Sydney, Australia. Aug. 25, 1930, No. 25311. [Class 144 (i).] A wheel for a tractor &c. comprises a main portion 9 with a plurality of lateral projections 18 to which tread plates 19 of different lengths are attached to enable the wheel to engage an undisturbed area of ground when it tends to slip. These are preferably formed in groups 19a, 19b, 19c, each plate being of different length from the others in the group. Other tread plates 16 may be disposed in slots in the rim and extendible spuds 15 may be provided alternately on each side and attached also to the projections 18. A rim or frame 24 may be provided to protect and support the longest of the tread plates 19.
Patent GB-242582-A (GB)
Title: Improvements in buttons
IPC: A44B1/36
Filed: 1925-10-10
Abstract: 242,582. Casemore, J. Oct. 10, 1925. Buttons. - The head of the button, which may be of various forms, is provided with a pointed and perforated shank b, which, after penetrating the material c is engaged by a screw e, with a cupshaped washer d placed behind the material and over the point. The button head shown in Fig. 1 is of ivory, non-oxidiz. able metal &c., and is detachably connected with the stud or shank b. In Fig. 2, the domeshaped metal plate a<1> is spun over the periphery of the base plate a after the flanged shank b has been connected to the plate by metal clips b', while in Fig. 3 the shank is formed from a piece of wire, the bent ends of which axe held in lugs a<3> in a plate a which is clamped to a plate a<2> by spinning over the end of the dome-shaped plate a<1>.
Patent GB-1319563-A (GB)
Title: Apparatus for producing marking lines
IPC: E01C23/20
Filed: 1971-04-19
Abstract: 1319563 Marking road surfaces ZUFORINDUSTRIEMASCHINEN ING HANSJUERGEN WOLANY OHG 19 April 1971 [25 March 1970] 25348/71 Heading E1G A line marker comprises a paint container 1 with an outlet tube 5 containing a spring loaded coaxial control rod 4 which carries a valve member 13, maximum longitudinal displacement of the rod to open the valve being adjusted by rotation of a knob 18 screwthreaded on the rod. In operation, knob 18 is depressed into contact with tube 5, serrations 20, 21 on the knob and tube engaging to prevent rotation of the knob and thus maintaining constant flow.
Patent GB-632371-A (GB)
Title: Improvements in or relating to devices for mechanically cleaning the toothed surfaces and straightening the teeth of wire-toothed cylinders of textile carding machines
IPC: D01G15/38
Filed: 1946-08-26
Abstract: 632,371. Cleaning and straightening teeth of carding-engine cylinders. BLANK, M. M., and WATEH, R. H. VAN DE. Aug. 26, 1946, No. 25393. Convention date, Dec. 29, 1945. [Class 120 (i)] A device for cleaning the toothed surfaces of helically-wound, wire-toothed cylinders of carding machines comprises a runway or rod 7, parallel to the cylinder 1 being cleaned, a tool-holder 9 mounted non-rotatably on the rod 7 and holding one or more cleaning tools 27 projecting between the turns of wire 2, so that the holder 9 and tools 27 are traversed along the cylinder by the turns of wire as the cylinder rotates. Two tools 27 may be spaced apart by a distance substantially equal to the thickness of the wire 2 and, in addition to cleaning, may straighten bent teeth or turns of wire. The holder 9 may have four flanged rollers 15 mounted in side plates 10 to facilitate movement of the holder 9 along the rod 7, which is supported by adjustable nuts 8 on uprights 6. The tools 27 are adjustably mounted in clamps on the holder 9 by set-screws 29. The leading side of the holder 9 has a wiper 19 of felt to prevent entrance of foreign material into the holder.
Patent GB-987113-A (GB)
Title: Traps for animals
Inventor: LLOYD HUW GWYNFOR
IPC: A01M23/30
Filed: 1961-07-13
Abstract: 987,113. Animal traps. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 4, 1962 [July 13, 1961], No. 25418/61. Heading A1M. An animal trap has hoop-shaped jaws 4 pivoted at 5 to a base frame 1 and which are moved by springs 6 from the set position (Fig. 1) in which the jaws define the base and side walls of a passage, to a sprung position (Fig. 4), tripping means in the form of a platform 12 being located in the passage. The jaws are held in the set position by means of a connecting member 16 extending between the legs of one of the jaws, which member 16 lies below a bar 15 the free end of which engages in a notched lug 17 on the platform 12. In the set position the loop 8 joining the springs 6 surrounds a lug 3 to which the jaws are pivoted. On depression of the platform 12 by an animal the bar 15 is released from the lug 17 thereby freeing the member 16 and allowing the loop 8 to move upwardly drawing with it the jaws 4. Each leg of the loop forming one jaw is cranked inwardly so that the jaws may clear one another when the trap is sprung.
Patent GB-1187633-A (GB)
Title: Salts of Morpholines with Alkylbenzene Sulphonic Acids and their use as Fungicides
IPC: C07D295/03
Filed: 1967-06-02
Abstract: 1,187,633. Fungicides containing salts of morpholines. BADISCHE ANILIN-& SODAFABRIK A.G. 2 June, 1967 [4 June, 1966], No. 25567/67. Heading A5E. [Also in Division C2] As fungicides, use is'made of salts of morpholines with alkylbenzene sulphonic acids, the salts having the formula: in which R denotes an alkyl radical of 10-13 carbon atoms and R<SP>1</SP> and R<SP>2</SP> denote hydrogen atoms or methyl groups (see Division C2). The salts may be formulated as solutions, emulsions, suspensions or dusts with the aid of liquid or solid diluents, a few of which are specified. Examples and experimental results are given.
Patent GB-1478371-A (GB)
Title: Broad band acoustic speaker
IPC: H04R7/20
Filed: 1974-06-10
Abstract: 1478371 Loudspeakers BABBCO Ltd 10 June 1974 [21 June 1973] 25583/74 Heading H4J In a loudspeaker the moving coil assembly has an acoustic radiating surface (diaphragm) attached to it and is supported in an annular flux gap by a polytetrafluoroethylene bearing surface. In one embodiment shown a stiff cardboard or aluminium coil former 44 has an antifriction P.T.F.E. bearing 48 secured to its inner surface. The bearing fits closely to but slides freely over the centre pole 26 of the magnet assembly. The bearing allows the clearance in the gap to be reduced and allows a greater length of travel of the coil than conventional rear suspensions or spiders. The coil is divided into two portions 46a, 46b positioned such that just as one coil portion completely leaves the gap the other commences to enter it giving it a linear characteristic over a greater range of travel. The diaphragm cone 50 has large plastic, aluminium or high density paper acoustic transmission ribs 56 attached along their entire length to the cone. The ribs have for the higher audio frequencies an acoustic transmission velocity in the direction of movement of the cone equal to that in air so that the whole of the diaphragm vibrates in phase. The front edge of the cone is mounted on an annular flange 38 by a flexible airtight rolled edge seal 54 to which are secured or woven into the fabric of the seal springs of steel, beryllium copper, phosphor bronze or glass. The assembly is mounted in a casing of the type described in Specification 1,429,996. The loudspeaker is said to give a good linear response over the entire audio range eliminating the need for multitransducer units with crossover networks. Numerous modifications are described. In particular many forms of P.T.F.E. bearing elements carried by the coil former and/or the magnet assembly and positioned inside or outside the coil former are described. Also instead of the coil being divided into two portions the flux gap may be divided into two portions (Fig. 9, not shown) into which the coil moves alternately.
Patent GB-454813-A (GB)
Title: An improved process for obtaining therapeutically valuable metal compounds of keratinic acids
IPC: A61K38/01
Filed: 1935-09-16
Abstract: Metal keratinates are prepared by treating alkali metal keratinates, which are obtained from the non-reduced hydrolysis products of keratin, in weakly alkaline or acidic solution with so much of a salt of gold, silver, mercury, zinc, bismuth, antimony or copper that the product, when precipitated by addition of acid or organic solvents, contains at least 20 per cent of metal in the case of gold and bismuth and at least 12 per cent in the case of the remaining metals. The products possess therapeutic properties.  According to the examples: (1) a gold compound is obtained by adding an auric chloride solution slowly to a weakly alkaline solution of a keratinate prepared according to Specification 247,944, [Class 2 (iii)], until the precipitate just goes into solution; the solution is made weakly alkaline by addition of caustic soda solution and auric chloride solution again added until the precipitate dissolves; this process is repeated until, after precipitation with ethyl alcohol, a product is obtained containing 30 per cent of gold; (2) a bismuth compound containing 30 per cent of the metal is prepared by adding bismuth ammonium citrate to a weakly alkaline keratinate solution prepared according to Specification 247,944 and completing the precipitation with glacial acetic acid; (3) sodium antimonyl tartrate is added to a weakly alkaline keratinate solution prepared according to Specification 370,295; on stirring into alcohol, solid antimony keratinate settles out.  The alternate addition of alkali and metal salt solution is advantageous not only in the preparation of the gold compounds but also when using silver, mercury, zinc and copper salts. In the preparation of the bismuth and antimony compounds, the use of the organic metal double salts is desirable.  Specifications 357,189, 412,366, and 437,769 also are referred to.  The Specification as open to inspection under Sect. 91 also includes examples of the preparation of silver, mercury and lead keratinates by adding silver nitrate, mercury acetate and lead acetate solution respectively, alternately with soda lye, to a weakly alkaline solution of sodium keratinate and precipitating the product with alcohol.  This subject-matter does not appear in the Specification as accepted.