baber/WOPTO huggingface dataset:
Patent GB-150138-A (GB)
Title: Embroidery sewing machine
IPC: D05B19/00
Filed: 1919-07-04
Abstract: 150,138. Fairweather, W., (Singer Manufacturing Co.). July 4, 1919. Sewing-machines; needles, vibrating laterally. -Relates to machines such as are described in Specification 8706/13 in which the needle is vibrated transversely by a rod 56 supported and oscillated by a cam and constrained by a link pivotally connecting an intermediate point in it with a pivot pin J. The amplitude and the field of the needle vibrations are determined by the position of the pivot J; the pivot being carried by a ball-crank lever 102 pivoted at 114 on an arm of a lever 96. The movement of the lever 96 about its pivot 113 determines the field of the vibrations and the movement of the lever 102 about the pivot 114 determines the amplitude. The invention consists in the automatic and variable control of the levers 96, 102 for the purpose of producing a variety of ornamental seams such as shown in Fig. 16. For the purpose of description it is assumed, in the first place, that a leverplate 119 is fixed. In front of it are two quadrant-levers 120, 121 coupled to the levers 102, 96 by links 109, 129. The levers 120, 121 are coupled to the plate 119 bv pins 126, 124 which may engage any of three holes. These are marked R. C and L. The link 129 has three slots similarly marked for engagement with a pin 97 on the lever 96 so that the length of the link can be raised. When these three adjustments are similarly made to one of the three alternatives R. C. and L., the machine is adjusted for producing similar zig-zag seams but disposed respectively to the right, symmetrically and to the left of the zero position of the needle line. If now the lever 119 is slowly oscillated by a step-by-step cam and the link 129 be, as shown, connected to the lever 121 in line with its pivot, then the lever 120 will move the pivot J to vary the amplitude of the needle vibrations but the field will not be changed. Seams such as B and A, Fig. 16 and the handed equivalent of B are thereby produced. If the lever 120 is disconnected from the plate 119 the lever 102 is locked to the lever 96 and the lever 102 is properly positioned relative to the lever 96 (a scale for this purpose is provided at 111) the movement of the lever 96 will not affect the amplitude of the needle vibrations but will vary the field and so a seam such as D, Fig. 13, is produced. Finally, if both levers 120, 121 are operative, seams such as C, Fig. 16, are produced and by varying the adjustments of the links and levers various. changes in the appearance of this seam can be effected. The portions X, Y of the seams shown illustrate the effect of varying the step-by-step feed of the control cam. The cam is driven in a known manner by a silent ratchet gear and an eccentric of variable throw.
Patent GB-972425-A (GB)
Title: Copolymers of trioxane and process for preparing them
IPC: C08G2/18
Filed: 1963-04-29
Abstract: Trioxane is copolymerized with 0.1 to 60% of the total monomers, of at least one cyclic formal of an olefinically unsaturated dihydric alcohol containing 4 to 6 carbon atoms at -50 to +100 DEG C. A Lewis acid or an acid halide may be used as catalyst. Specified cyclic formals are butene-(3)-1:2-diol formal, pentene-(2)-1:4-diol formal, 2-methylbutene-(2)-1:4-diol formal, and butene-(2)-1:4-diol formal (preferred) as well as mixtures of two or more such formals. The copolymerization may take place in solution or suspension, using aliphatic and aromatic hydrocarbons, halohydrocarbons or ethers, or in bulk. Specified catalysts include boron trifluoride and its complexes, and the diazonium fluoroborates e.g. para-nitro-phenyl diazonium fluoroborate as well as the compounds mentioned in Specification 943,684.  The copolymers may be sulphur vulcanised.
Patent GB-1384598-A (GB)
Title: Alarm systems
IPC: G08B25/00
Filed: 1972-04-12
Abstract: 1384598 Fire alarms ABOYNE PTY Ltd 12 April 1972 16834/72 Heading G4H An alarm system comprises a plurality of (e.g. temperature sensing or smoke) detecting heads, one head (or group of heads) for location on each floor of a multi-storey building, each head having a radio frequency transmitter communicating with a receiver on the respective floor, signals from the receivers including a plurality of characteristic signals being fed to a common unit including AND gates arranged to indicate the floor on which the detection has occurred. Each sensor may be a bimetallic switch or a switch operated by gas expansion in a chamber and may respond to rate of change of temperature. A battery charge level indicator and local alarm may be included in each sensor head. A 27 MHz carrier, amplitude or frequency modulated by two tones within the range 400-800 Hz is suggested. Receivers and indicator unit.-Each receiver has filters responsive to the tones employed by the transmitters on the respective floor. A delay may be included to preyent false alarms due to transient signals. In a frequency division multiplex arrangement (Figs. 4 and 5, not shown) an output switch in each receiver feeds signals from three oscillators to a common line coupled to the common indicator unit where the frequencies from the respective floors are identified by filters and AND gates so as to energize the appropriate indicator.
Patent GB-717324-A (GB)
Title: Improvements in or relating to separating dust from air
Inventor: HALL SYDNEY
IPC: B01D50/00
Filed: 1951-07-18
Abstract: 717,324. Centrifugal separators. HALL & KAY, Ltd. July 8, 1952 [July 18, 1951]. No. 17004/51. Class 23 [Also in Group XXVIII] Cyclones 4 serving to effect preliminary separation of dust from air entering a duct 5 prior. to filtration at screens 7, 13 (see Group XXVIII) are emptied of collected dust through their bases and a duct 17 connected to the intake of a suction from 18 delivering through ducts 19, 20 to filter bogs 22.
Patent GB-441598-A (GB)
Title: A rack for supporting bins for nuts, bolts and other goods
IPC: A47B88/60
Filed: 1935-06-15
Abstract: 441,598. Storage racks ; drawers. RUBERY, OWEN, & CO., Ltd., and BARNARD, A., Victoria Works, Darlaston, Staffordshire. June 15, 1935, No. 17258. [Classes 52 (i) and 52 (v)] A rack for supporting trays or bins for nuts, bolts, washers, &c. comprises uprights 12, cross braced at 13 and supporting pairs of spaced angle irons 14 which act as shelves to carry the bins 17, downwardly extending parts 10 being provided at the ends of the shelves. The downwardly extending parts may comprise flanges of angle irons 18 or may be formed by bending down the ends of the angle irons 14. The bins can be partially withdrawn and tilted as shown when their back edges 20 engage the parts 19, the forward edges of the rear feet 22 of the bins engaging upstanding parts 24 on the ends of the shelves to wedge the bins in position. The bins may be as shown in Fig. 1 of Specification 413,480, [Group XVII], and may be stacked one upon another when the part 25 on each bin enters the space 26 between the feet of superimposed bin. The whole or part of the rack may be arranged to accommodate two bins per shelf by suitable arrangement of internal brading 27.
Patent GB-612930-A (GB)
Title: Improvements in burners for liquid fuel
IPC: F23D11/44
Filed: 1946-06-07
Abstract: 612,930. Liquid-fuel burners. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 7, 1946, No. 17304. Convention date, June 11, 1945. [Class 75 (i)] In a burner which, apart from apertures for exhaust products and air supply, is cut off from the surrounding atmosphere, liquid fuel under pressure is vaporised by the heat of the flame and expands in a chamber 10 to drive a Pelton wheel 11 which rotates the fan 13 for drawing air into the chamber 10. The air is preheated by enclosing the air supply tube 15 within the exhaust tube 19.
Patent GB-140131-A (GB)
Title: An improved articulation between a piston and its connecting rod
IPC: F16J1/16
Filed: 1918-10-23
Abstract: 140,131. Barbarou, M. J. B. Nov. 5, 1917, [Convention date]. Connecting-rods.-The eye of the small-end is divided and is clamped round the gudgeon-pin A by a bolt. The lower halves of the piston bosses are cut away, as shown by the dotted lines in Fig. 3, to accommodate the lower half of the eye, which is longer than the upper half.
Patent GB-243275-A (GB)
Title: Improvements relating to dust removing devices for automatic musical instruments
IPC: G10F5/06
Filed: 1925-07-07
Abstract: 243,275. Katz, C., and Kõstner & Co. Piano-Apparate Akt.-Ges. July 7, 1925. Actions, pneumatic.- The ducts leading to the tracker bar, to the striking pneumatics, or to the reeds of automatic musical instruments are provided with dust-collecting sieves 3 each mounted separately in a separate chamber 4 and each chamber having a separate cover 5 held thereon by an arm 10 carrying a screw 9. The arm 10, which may be replaced by a spring, is pivoted at 12 to be swung out of the way when access to the sieve is required. The sieves 3 have arms 6 bearing against the covers 5.
Patent GB-595917-A (GB)
Title: Improvements relating to electromagnetic telephone instruments
IPC: H04R11/00
Filed: 1945-07-09
Abstract: 595,917. Telephone instruments. SIEMENS BROS. & CO., Ltd., and SPICER, J. H. July 9, 1945, No. 17428. [Class 40 (iv)] In a telephone instrument of the type in which an armature vibrates between two pole faces of opposite polarity, the distance between the pole-faces is determined by a spacer clamped between them and adapted to be attached to at least one of the pole pieces. The bar magnet 1, Fig. 1, has pole shoes 2, 8 attached to each end, each (such as 2) having a substantially flat L-shaped portion 3 (shown partly cut away) bent at right angles to the shoe 2, the horizontal limb of the L having bent-over portions 4, 5 forming two of the pole-pieces. The pole-pieces 9, 10 are similarly formed from the pole shoe attached to the other end of the bar magnet 1. The armature 14 having an ear 22 covered with a lapping 15 is gripped thereby at its lower end between the pole-pieces 5, 10. The upper end of the armature 14 is free to move between the pole-pieces 9, whose gap is maintained by U- shaped spacing members 18, 19 which clip over the pole-pieces 9. Screws such as 7, passing through holes such as 13 in the member 3, and 12 in the extension of the pole-shoe 8, serve to draw the pole-pieces together to clamp the lower end of the armature between the polepieces 5, 10 and the spacing members between the pole-pieces 4, 9. The lower limbs of the U-shaped clips 18, 19 may be joined by a horizontal bar for ease in assembling. The armature may alternatively be pivoted independently of the pole-pieces, spacers being provided for the pole-pieces 5, 10 as well as for 4, 9. Specification 547,728 is referred to.
Patent GB-1072724-A (GB)
Title: Improvements in the coating of metal surfaces
Inventor: FREEMAN DENNIS BRIAN
IPC: C23C22/46
Filed: 1965-04-26
Abstract: An oxalate coating is formed on metal surfaces containing Cr e.g. stainless steel, by contacting the surface at elevated temperature with a solution containing oxalic acid and citric acid in a weight ratio of not less than 0:2.  Activators and accelerators e.g. alkali metal halides, picric acid, nitroguanidine, p nitroaniline, m nitrobenzene sulphonic acid, sodium and ammonium thiosulphate, sulphite and thiocyanate may be included in the solution.
Patent GB-1471953-A (GB)
Title: Asynchronous internally clocked sequential digital word detector
IPC: H04B1/06
Filed: 1974-04-22
Abstract: 1471953 Address detector MOTOROLA Inc 22 April 1974 [29 May 1973] 17509/74 Heading G4H The invention relates to an asynchronous internally clocked sequential digital word detector which recognizes a two-word address whose first word is cyclic, although more than one address can be recognized by appropriate modification of the circuitry. The detector may form part of a paging receiver. Each word consists of 23-bits and is sampled (four times per bit) and fed into a 92-stage register 13 (clock pulses C), in an interval determined by pulses ST, using a block 20 and timing generator 12, Fig. 2 (not shown). The sample in stage 91 is compared in an XOR gate 14 with the inverted sample in stage 92, 1 outputs from gate 14 (mismatches between samples) being sent to a counter 122, Fig. 3 (not shown), in a correlator 16. All samples are compared, successive pairs of bits at a time, between adjacent CR pulses from generator 12, a count of 12 serving to terminate the count. A second count of 12 before the next CR pulse indicates the presence of noise and disables the detector (a single count of 12 could have been caused by a comparison between the fourth sample of one bit and the first sample of the next bit). Signal correlator 16 and a signal strobe generator 29 provide a battery saver or power economizer feature: the detector is actuated every 528 msec. for a period of up to 130 msec. Strobe 29 initializes operation of the detector by allowing signals to be coupled through gate 21 from clock 20. A flip-flop 35 prevents abrupt termination of the detector if it has been held operative for more than a predetermined time: in this case flip-flop 35 is set to cause correlator 16 to ignore the 12 count, and only to be operative on two consecutive counts of 27. This guards against short-term nulls. The address to be recognized is stored in a code plug 36. Each word, as required, is fed (with parity bits 39) under the control of a flipflop 37 to a register 40 from which each bit is compared, with four samples from register 13, in an XOR gate 15. A counter 43 counts mismatches: counts of less than 13 or greater than 80 respectively indicate correct reception of the first address word or its complement, gates 45 and 46 or 47 and 48 being partially enabled according as flip-flop 52 is set or not. Upon recognition of the first word, circuitry 24, 37, 41, 53-4 is actuated to provide a delay while the second word is received, then a "window" during which it is compared with the second address from plug 36; in this case counts of less than 13 or more than 80 partially enable gates 45 and 47 or 46 and 48 so that outputs 56-59 indicate the state of a correctly received signal, if any.
Patent GB-218836-A (GB)
Title: Improvements in or relating to apparatus for the production of aerated beverages
IPC: B01F3/04
Filed: 1923-07-06
Abstract: 218,836. Hayes, E. July 6, 1923. Forcing gas into liquid; valves, disposition of.- The gas-inlet and snift-valves are operated by a bell-float in the aerating-chamber so arranged that it receives the gas which bubbles through the liquid and serves as a gas reservoir. The float 8 is provided with a central tube 9 which slides on a rod 12 pivoted to a lever 14 which operates the gas-cock G.C. From the gas-cock G.C. a pipe 17 leads to a perforated head 18 arranged below the float 8. Tappets 22, 23 on the rod 12 engage with a rod 24a pivoted to a lever 26 carrying a wedge 36a which opens the snift-valve S.V. when the float sinks, thus allowing, water to enter through an inlet valve. If the water-pressure available is sufficiently great the snift-valve may be dispensed with. If, on account of a failure of gas-pressure the amount of gas present is not sufficient to raise the bell 8 and open the cock G.C., gas can be admitted by a hand-operated bypass valve. The float 8 may operate the waterinlet valve as well as the gas-inlet.
Patent GB-156465-A (GB)
Title: Improvements in hose supports
IPC: A41F11/16
Filed: 1920-06-28
Abstract: 156,465. Baring, C. June 28, 1920. Garters.-Upper and lower garters, to be worn above and below the knee respectively, are connected together by straps c, the upper garter being provided with rings f or other means for attachment to suspender straps secured to the corset. Each garter may be formed partly of elastic and partly of ribbon, and provided with a hook fastening and a tightening-slide as shown,
Patent GB-515892-A (GB)
Title: Automobile radio antenna
IPC: H01Q1/32
Filed: 1938-06-14
Abstract: 515,892. Aerials. TRANSITONE AUTOMOBILE RADIO CORPORATION. June 14, 1938, No. 17631. Convention date, June 17, 1937. [Class 40 (v)] A motor-car aerial, mounted on the cowl 2 of the car, comprises a plurality of telescoping sections 7, 8, 9 so that the driver may adjust its length. The main section 7 is attached to the cowl 2 by the supports 5 and 6. The upper support 5, Fig. 4, is a hollow knob 12 of insulating material seated on a resilient ring 13 of insulating material and having a transverse opening through which the aerial extends. The aerial rod 7 is clamped by a metallic strap 17 attached to a nut 18 which is drawn by means of the screw 22 towards an insulating clamping- piece 14 engaging the inner surface of the cowl. The screw head 23 serves as a terminal post for the lead-in conductor, the shield 25 of which is earthed by connecting it to the cowl wall through the connection 26. The lower support 6, Fig. 5 (not shown) is similar, but the transverse opening extends only partly through the knob which forms a seat for the lower end of the aerial. A small hole in the bottom of the knob drains-off any water which may enter the aerial structure. The outer end of the binding screw also engages an aperture in the aerial rod to prevent rotation of the aerial.
Patent GB-683643-A (GB)
Title: Reciprocating saw or similar tool attachment
IPC: B23D57/00
Filed: 1950-07-14
Abstract: 683,643. Reciprocating saws; polishing. R.C.S. ENGINEERING CORPORATION. July 14, 1950 [Sept. 3, 1949], No. 17678/50. Classes 60 and 145 (ii). [Also in Group XXII] An attachment for a rotary tool comprises a housing H, at one end of which is a socket 10 adapted to fit onto the rotary tool, and a spindle 12 to which the rotary portion of the tool is connected. The piston 38 is reciprocated through the crank 24a and gears 18, 22 and the motion is imparted to saw blade B or to a polishing tool. A fan 56, actuated through gears 32, 62, forces air through passage 46 in the direction of the arrows to cool the blade &c. and to remove chips and the like. A semi-circular guard 64 is provided to steady the attachment on the work.
Patent GB-857777-A (GB)
Title: Internal combustion percussive tool device
IPC: B25D9/10
Filed: 1957-06-04
Abstract: 857,777. Internal-combustion percussive apparatus. BARD, F. N. June 4, 1957 [Jan. 30, 1957], No. 17689/57. Classes 7(2), 7(4) and 7(5). A free-running portable hand-operated internal-combustion percussive apparatus of the two-stroke cycle type comprises a cylinder, a free piston movable in the cylinder, a source of fuel, a fuel connection between the source and cylinder and a starting device separate from the fuel connection and having an inlet connected to the source of fuel and an outlet connected directly to the cylinder. As shown, cylinder 28 of the starting device is provided with a piston 30. Piston 30 is first depressed to exhaust air from the cylinder 28 then as the piston is pulled up gasoline from the fuel tank 26 is drawn through an adjustable needle valve 32 mixing with filtered air which is simultaneously drawn in through the check valve 33. Fuel air mixture is drawn through check valve 35 into the cylinder 28. When the piston 30 is pushed down again the fuel air mixture in the cylinder 28 is forced through check valve 36 and outlet passage 37 into the combustion chamber 12 where it is ignited by spark ignition. The ignition system includes a manual ignition switch 46 and a high voltage ignition coil 47. An ignition timer assembly 48 is connected in series with the battery 45 and switch 46. As the pressure increases in combustion chamber 12 due either to operation of the starting device or to the upward movement of the piston 11 the piston 55 is forced upwardly closing the contacts 53 and 51 thus completing the primary circuit for the ignition coil 47 and providing the necessary high voltage at the spark plug 29. The increase in pressure during combustion causes the piston 55 to move farther upwardly forcing contact 50 away from fixed contact 49 and breaking the ignition circuit. The check valve 41 may be eliminated if desired.
Patent GB-350239-A (GB)
Title: Improvements relating to braces for personal wear
IPC: A41F3/02
Filed: 1930-06-07
Abstract: 350,239. Braces for personal wear. MARTIN, P. A., New Works, Granville Street, Birmingham. June 7, 1930, No. 17697. [Class 141.] Tab-ends for braces are formed of two layers in the form of a loop, the rear layer containing the buttonhole, and the front layer, which is not apertured, covering and concealing the button when the braces are in wear. As shown, a strip of leather 1 is doubled and stitched to the shoulder strap 5 at 4, the front layer 2 covering the button 7, and the rear layer 3 containing the buttonhole 6. In a modification, the tab-end is integral with the shoulder strap, the end of which is doubled to form the two lavers. In another modification, the layers are formed by separate strips stitched to the shoulder strap, the free ends of the strips being connected by stitching.
Patent GB-1510586-A (GB)
Title: Electric motor casings
IPC: A47L11/24
Filed: 1976-04-30
Abstract: 1510586 Cooling dynamoelectric machines VORWERK & CO INTERHOLDING GmbH 30 April 1976 [30 April 1975] 17831/76 Heading H2A A plastics motor casing G formed of two part shells 1, 2 includes a partition 29 defining a duct 4, the duct 4 by-passing a space in the casing which in use is occupied by a motor. Air which is driven along this duct 4, e.g. by a fan 14, remains relatively cool in passing along the casing and so is well able to cool a motor bearing 10 at the far end of the casing on arriving thereat. Some of this air also cools a commutator (17, Fig. 1, not shown). The motor shown drives a brush cylinder 35.
Patent GB-161478-A (GB)
Title: Improvements in and relating to card holders used in connection with garment hangers
IPC: A47G25/48
Filed: 1920-06-30
Abstract: 161,478. Landry, W. J. June 30, 1920. Coat and like hangers. - Cards or labels are applied to garment-hangers, of the kind having shoulder supports 3, upon a central projection 2 which extends upwardly so that a view of the label is not obstructed by the garment. The labels are secured either by a separate holder 9 secured to the projection 2, or by insertion in recesses in the projection, or by tacks or adhesive. The surface of the projection may be angular as shown, or flat. A stay 4 supports the shoulder support 3, and a bar 6 is pivoted at 5 to the stay for clamping trousers &c. thereto, the free end of the bar 6 being secured by a socket 7 slidable on the stay.