baber/WOPTO huggingface dataset:
Patent GB-414122-A (GB)
Title: Improvements in or relating to electro-magnetic regulating apparatus
IPC: H02P9/22
Filed: 1933-01-28
Abstract: 414,122. Automatic electromagnetic regulators. STONE & CO., Ltd., J., Deptford, and CHILTON, A. H., 200, Brompton Road, both in London. Jan. 28, 1933, No. 20907. Divided on 414,111. [Class 38 (iv).] In a carbon pile regulator operated by an electromagnetic actuating force, the pile compression is varied by a magnet rotor rocking between opposed pole faces which has its end faces so profiled that the characteristic of the magnet is matched with the straight line characteristic of the controlling spring. The iron magnet core 2 supports the excited winding 3 and between its concave pole-faces 8 moves the rocking rotor 7. This iron rotor 7 is connected by a spindle to a disc 16 which operates the push rod 19 of the carbon pile by a crank connection 18. The convex end-faces of the rotor are shaped eccentrically at 11, 13 (Fig. 3) to yield a tapered air gap between the rotor and the pole faces and they may be provided with trailing parts and toe pieces 15. The pile of carbon plates is arranged between the fixed plate 22 and the compression plate 20 and is confined between insulating rods 30. The top plate 22 has an extension 23 which is hinged at 24 to an adjustable bracket 25. The controlling spring 32, connected at one end to another adjustable bracket 35, is attached to the rim of the disc 16 by a metal tape 33 anchored at 34. The disc 16 is also connected by the crank pin 36 to the pivotally mounted dash pot 37 and is confined in its movement by screw abutments 40 engaging a stop 39. A counter weight 38 is also provided. In a modification, not shown, the push rod 19 is connected first to a see-saw lever which operates a group of piles by means of an additional push-rod which is made adjustable in length by a turnbuckle comprising a sleeve engaging screw-threads of differing pitch. A thermal compensating device as described in Specification 414,111 is also employed. Specification 414,112, [Group XXXVI], also is referred to.
Patent GB-847274-A (GB)
Title: Improvements in or relating to hosiery finishing machines
IPC: D06C5/00
Filed: 1957-07-03
Abstract: <PICT:0847274/IV (c)/1> <PICT:0847274/IV (c)/2> Apparatus for treating hosiery comprises a heated chamber 2 which may be pressurized or subjected to vacuum, and two closed circuit conveyers 1 which carry the articles to be treated into and out of the chamber. A measured quantity of treating liquid taken either from a reservoir 4 or from ducts by a vessel 12 having an adjustable piston is circulated through a rotatable or reciprocable sprinkler 14 by a pump 13.  The temperature in the chamber 2 is raised above 100 DEG C. by steam pressure, the steam atmosphere in addition to the sprinkled liquid being used to treat the articles, and the chamber is provided with doors 7.  Driers 3 and other treatment apparatuses are provided in the conveyers circuits and the movement of the formers is effected by electrically driven gears 9, the formers being closed up when in the chamber 2 and the driers 3.  The entire operation of the machine including pH regulation may be effected automatically, and thermally responsive circuits control the heating of the chamber and the treatment vapour.
Patent GB-1431368-A (GB)
IPC: G02B25/00
Filed: 1973-09-03
Abstract: 1431368 Microscopic eye-piece AMERICAN OPTICAL CORP 3 Sept 1973 [11 Sept 1972] 21002/75 Divided out of 1421806 Heading G2J An eye-piece having a magnification of 10X, an apparent field of view of 52À3 degrees, a maximum exit pupil diameter of 1À6 mm, a Petzval radius of 5À4F and having an eye relief of 0À74F (F= focal length) has optical elements as shown (R1 = α). Optical data are given.
Patent GB-466318-A (GB)
Title: Improvements in calendering machines
IPC: D06C15/00
Filed: 1936-07-29
Abstract: 466,318. Calendering machines for paper and fabrics. ETABLISSEMENTS SCHAEFFER & CIE. July 29, 1936, No. 21016. Convention date, Sept. 4, 1935. [Classes 42 (i) and 96] Progressively increasing pressures are exerted in the direction of travel of paper, fabric, &c., 8, in a horizontal or vertical calender, by primary presses 3, and secondary presses 5 on the machine framework. The pressure may be hydraulic, the cylinders and pistons being connected, by levers 6, pivoted at 7, with the bearings of resilient rollers 2, which are alternate with metallic rollers 1. In a modification the pistons only are so connected.
Patent GB-1334992-A (GB)
Title: Method of making a gas- and or vapour discharge tube
IPC: H01J61/04
Filed: 1972-05-05
Abstract: 1334992 Gas discharge lamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 5 May 1972 [8 May 1971] 21025/72 Heading H1D A discharge lamp is provided on the exterior of its envelope with ductile metal heat shields 4, 5 parts of which can readily be removed or bent away from the envelope to adjust the local temperature of the lamp. In Fig. 1 annular strips can be torn off between perforated lines 6, 7, 8, 9. In Figs. 3 and 4 (not shown) the shields consist of cylindrical sleeves with a plurality of longitudinal slits in their circumferences, the parts between the slits being readily bent away from the envelope. When the heat shields are at the ends of the tube they can form part of the end cap. Tantalum is a suitable ductile metal.
Patent GB-1307717-A (GB)
Title: Flash distillation apparatus
IPC: B01D5/00
Filed: 1970-05-01
Abstract: 1307717 Evaporators, flash type; desalination of water HITACHI SHIPBUILDING & ENG KK 1 May 1970 [1 May 1969 (2) 1 July 1969] 21115/70 Heading B1B Flash evaporation is carried out in chamber 15 having an inclined bottom 19 extending downwardly from the inlet 17 of the liquid to be evaporated; and turbulence is imparted to the liquid by curved deflector plates 20 arranged in staggered positions on the bottom 19, the plates being inclined to the general direction of liquid-flow. The apparatus may be used to produce fresh water from sea water which is pumped through conduit 14, condenser tubes 16 and heater 18 into the flash chamber 15. The flashed vapours condense on the outside of tubes 16, and the condensate (i.e. fresh water) is withdrawn by pump 28. In Fig. 4 (not shown), two such flash chambers are connected in series. In another flash distillation plant (Fig. 5, not shown), sea water having been preheated by passing it through the condenser tube of the flash chamber is further heated by passing it through the condenser tube of a steam turbine; the sea water then being introduced into the flash chamber. Part of the residual brine, withdrawn from the flash chamber, may be pumped back to the turbine condenser tube via a valve which is controlled by the temperature of the sea water flowing to the flash chamber. The apparatus is operated under high vacuum; and may be disposed below sea level.
Patent GB-566685-A (GB)
Title: Improvements in and relating to electric circuit breakers of the gas blast type
IPC: H01H33/57
Filed: 1943-12-16
Abstract: 566,685. Gas blast switches. BRITISH THOMSON - HOUSTON CO., Ltd. Dec. 16, 1943, No. 21137. Convention date, Dec. 19, 1942. [Class 38 (v)] The exhaust passage of a cross - blast, air circuitbreaker, for example that described in Specification 544,017, is furnished with fan-like, metal-vane structures 17, which impart a helical motion to, and cool the gases, and cause incandescent solids to be separated out. The blades in adjacent structures may be oppositely-pitched so as to reverse the direction of whirling motion in adjacent spaces 18, 19 between the structures.
Patent GB-960946-A (GB)
Title: Process for the production of connecting pipes and containers from polyvinyl chloride, polyester resin and hydraulic cement
IPC: F16L58/06
Filed: 1962-06-01
Abstract: Connecting pipes or containers of polyvinyl chloride are coated with a cold-hardening polyester resin composition containing at least one unsaturated polyester produced using perhydro-bisphenol A (bis-(p-hydroxy-cyclohexyl)-dimethylmethane) and a solvent or swelling agent for polyvinyl chloride, the polyester resin layer is allowed to gel and further coated with another such polyester resin which however does not contain a solvent or swelling agent, and before the gelling of the second layer the pipes or containers are coated with a hydraulic cement composition which is allowed to harden.  The polyester composition is a solution of one or more unsaturated polyesters, e.g. from maleic anhydride and ethylene and diethylene glycol, or from maleic anhydride and butan-1, 3-diol in an ethylenically unsaturated compound, e.g. styrene, with one or more peroxide catalysts, e.g. benzoyl peroxide, and accelerators, e.g. diethoxy-p-toluidine or cobalt octoate.  The solvent or swelling agent may be cyclohexanone or tetrahydrofurane. The polyester resin may contain silica and a stabilizer, e.g. hydroquinone.  The cement mixture may be a mixture of gravel, sand, cement and water.
Patent GB-380891-A (GB)
Title: Improvements in clocks driven by synchronous electric motors
IPC: G04C23/06
Filed: 1931-07-25
Abstract: 380,891. Time alarms. LANDIS ET GYR SOC. ANON., 1, Hofstrasse, Zug, Switzerland. July 25, 1931, No. 21285. Convention date, July 26, 1930. [Class 118 (ii).] A power accumulator is combined with and operated by an electric clock driven directly by a synchronous motor, for actuating mechanism associated therewith, for example time switches, striking, alarm or signalling mechanism. The synchronous motor 1 drives the clock movement 2 through gearing 3, and, through gearing 4, disc 5, driving pin 6, travelling nut 8 and pin 10 rotates a drum 11 to tension the spring 12 therein. The inner end of this spring is attached to a shaft 7 threaded at 71 and normally looked by a linkwork 16 engaging a detent arm 15 thereon, overwinding being prevented by means of the nut 8, the projection 9 thereon moving axially out of the path of the pin 6 when the maximum allowable tension is reached. Periodically the linkwork 16 is actuated in known manner by the clock 2 to release the detent arm 15, which rotates through 180‹ under the tension of spring 12, an arm 14 on shaft 7, thereby breaking and making a suitable circuit at contacts 17 at alternate actuations. As the shaft 7 rotates, the nut 8 moves to the left along screw 7<1> whereupon the pin 6 again winds the spring. The switch arm 14 may be replaced by a toothed wheel to drive mechanically a striking, alarm or other signalling mechanism. A modified construction in which a weight suspended from a pulley replaces the spring accumulator is described.
Patent GB-993480-A (GB)
Title: An improved process for the preparation of alpha-hydroperoxycarboxylic acid esters
IPC: C07C409/06
Filed: 1963-05-28
Abstract: Mono- or poly-carboxylic acid esters having at least one alpha-hydrogen atom are converted to alpha-hydroperoxy esters by contacting with an alkoxide of an alkali, alkaline earth or Group III metal, the oxidizing at not more than 50 DEG  C. with molecular oxygen and finally neutralizing to obtain the desired product from the salt-like intermediate.  An aprotic solvent or diluent may be used during oxidation. The hydroperoxy-esters may be reduced to the hydroxy-esters (e.g. mandelates) or dehydrated (if containing an alpha-hydrogen atom) to the keto-esters.  The examples describe the production of #t-butyl a -hydroperoxy-isobutyrate, ethyl and #t-butyl-a -hydroperoxy-phenylacetates, and ethyl a -hydroperoxycyclohexanecarboxylate; in case ethyl and ethyl phenylglyoxylate was formed as by-product. U.S.A. Specification 3,013,077 is referred to.
Patent GB-577546-A (GB)
Title: Improvements in circular knit hosiery and in the method and machine for making same
IPC: D04B1/26
Filed: 1943-12-20
Abstract: 577,546. Knitting. SCOTT & WILLIAMS, Inc. Dec. 20, 1943, Nos. 21342 and 21343. Convention dates, Dec. 30, 1942, and Jan. 15, 1943. [Class 74 (ii)] To avoid accidental cutting of the yarn at the suture in knitting heels and toes containing terry fabric by reciprocatory knitting upon a circular machine, the terry loops 22 are omitted from, say three or four stitches, in alternating courses at each edge of the pocket. The spacing of the first terry loop from the edge of the pocket is maintained in spite of the narrowing and widening of the fabric. Terry fabric may also be knitted in the high heel and in the ring toe portions. Sinkers 292 having the usual knocking-over ledge and a neb 293, over which the terry loops are drawn, are provided and are pushed radially inwardly by mechanism actuated by needle butts when terry loops are to be formed. Reader cams 40<1> are provided which are raised by the needle butts n'. The cams 40' are mounted upon levers 82, each of which has a portion 83 engaging the sinker cam 84. A supporting cam 80<1> is arranged beneath the cam 40<1> so that the needle positively raises the cam 40'. In one form, Fig. la, the cam 40<1> is operated by the butts n<2> of the inactive needles, and in this form the sinkers are provided with notches 294 in the upper edges of the neb 293 to receive the pile yarn Y'. The needle butt n<2> holds the lever end 83 away from the terry sinker cam 84, and the lever end 83 is so disposed with respect to the cam 40<1> that after the first few needles have drawn both terry and body yarns Y<2>, Y<1> below the nebs 293, the last inactive needles passes from beneath the cam 40' and the lever end 83 is spring pressed into engagement with the sinkers. In a modification, the sinkers are moved inwardly by the butts of the active needles. In this form, the notches 294 are dispensed with and the upper edges of the nebs 293 are flat. To avoid crinkling and clipping of the body yarns, particularly in fine guage machines, the terry and body yarns are raised above the sinker nebs at the end of each stroke by a bulged portion 70 upon the shank of every needle. The last inactive needle may be placed at a slightly lower level to prevent the hump throwing both yarns out of the first needle which is intended to knit them. The picker 218 which lowers inactive needles into operative position is provided with a normal or lower lip 219 which lowers two needle butts and an upper lip 220 which serves to lower needles to a level from which they are raised by a levelling cam so that widening is not effected.
Patent GB-1221150-A (GB)
Title: Improvements relating to heating rods
Inventor: KOLFERTZ ERWIN
IPC: H05B3/80
Filed: 1969-04-28
Abstract: 1,221,150. Mounting resistance heating elements. E. KOLFERTZ. 28 April, 1969 [25 July, 1968], No. 21470/69. Heading H5H. A resilient impact cushioning device incorporating a cap 7 is fitted over the lower end of a glass tube 6 enclosing a heating coil 4, with its supporting ceramic insulation 5 and sealed by a plug 11, the rod-shaped heating element 1 being suspended from the wall of an aquarium (not shown) so as to be immersed in the water. Cap 7 may be a suction cap, but for the preferred cushioning device, the protective cap 7 is carried by the rubber plug 11, which forms a watertight seal in the tube 6. The plug 11 is mounted on a central pin 10 projecting axially upwards in the interior of the cap 7 and is supported on a flange 9 projecting from the cap bottom 8. The cap 7 is of synthetic plastics material and the outer wall 12 is conically flared, as shown, the upper rim contacting the aquarium wall to cushion any impacts. Sand separates the ceramic 5 and tube 6.
Patent GB-598119-A (GB)
Title: Speed governor
IPC: B64C11/30
Filed: 1945-08-23
Abstract: 598,119. Differential governors. AVIATION CORPORATION. Aug. 23, 1945, No. 21627. Convention date, Aug. 25, 1944. [Class 57] [Also in Group XXXV] A speed governor for adjusting the pitch of a screw propeller includes a shaft 17 driven by the engine through a shaft 16, hydraulic coupling 35, bevel gearing 36, 37 and epicyclic gearing 38, and a shaft 18 driven by a pilot motor 49 through an epicyclic gearing 48. An inertial weight 20 is mounted on threads 70 on the shaft 17 and sleeve carried by the weight 20 has threads 69 engaged by fingers 85 carried by a member 81 splined on the shaft 18. Slow speed differences between the shafts 17, 18 move the fingers 85 and member 81 along the shaft 18 to cause a plate 83 to operate switch 93 or 94 to initiate a slow adjustment of the pitch of the propeller. High speed changes result in relative movement of the inertia weight 20 to the shaft 18 which is transmitted to the plate 83 to operate switches 95, 96 to initiate a high-speed adjustment of the pitch of the propeller. The switches 93 ... 96 control an electric circuit (see Group XXXV). The shafts 17, 18 are urged to maintain synchronism by toothed segments 64 carried by pivots 60 on the shaft 17 and engaging teeth 65 on the shaft 18. The segments have centrifugal weights 66 and the amount of out-of-phase movement is limited by engagement of the portions 63a with the shaft 18 when direct drive between the two shafts 17, 18 is established. The inertia weight 20 carries similar toothed segments 78 that engage teeth 79 on the shaft 17 for a similar purpose. Specifications 597,931, [Group XXXIII], and 598,110 are referred to.
Patent GB-391806-A (GB)
Title: Improvements in or relating to knitting mechanisms
IPC: D04B27/26
Filed: 1931-11-03
Abstract: 391,806. Warp-knitting machines. BRITISH CELANESE, Ltd., 22, Hanover Square, London, KINSELLA, E., PRATT, J. G., and KELSALL, B., c/o British Celanese, Ltd., Spondon, near Derby. Nov. 3,1931, No. 21763/32. Divided on 391,803. [Class 74 (ii).] Mechanism for lapping the guides of a warp machine without backlash comprises double cams acting directly on the guides in the direction of their length. An end frame 10 carries a dust and oil tight casing 12 in which are housed levers 19, 20 mounted on pivots 17, 18. Rollers 23 .. 26 pivoted on the enlarged free ends of the levers are operated by the faces of cams 33, 34 and act on push-rods 41, 42, universal joints 43 .. 46 and guide-bars 47, 48. Attached to the casing 12 is a chain-drive mechanism for the warp feed. Specifications 331,202, [Class 74 (ii), Knitting &c.], 391,803, 391,804, 391,807, 391,808, 391,809, 391,810, 391,811, and 392,175 are referred to.
Patent GB-146746-A (GB)
Title: Improvements relating to automatic electric couplings
IPC: B61G5/10
Filed: 1919-09-05
Abstract: 146,746. Belfield, R., (Westinghouse Air Brake Co.). Sept. 5, 1919. Two-part couplings.-Automatic electric couplings between cars of a train have movable members adapted to be projected forward to engage the contacts of a counterpart coupler on the adjoining car which are yieldingly held together when coupled; a movable shutter covering the coupling is partly opened automatically upon engagement of the coupler heads and fully opened by the contact carrier, and the train conductors are clamped to the contact carrier, a detachable connexion being interposed between each contact and its corresponding train conductor. The apparatus is described as applied to a car coupler of the rigid lock type having a body 4 and hookshaped projections 5 locked by spring-actuated levers 6 on the counterpart coupler with releasing. pistons 7. The electric coupling, preferably suspended beneath the car coupling, has a contact: carrier 11, in a casing 10, which is connected by a link 19 to a lever 18 pivoted to a block 26 and. adapted to be operated by a piston 16 and fluid. pressure from a train pipe 35 to project the contact carrier 11 forward so that its contacts 12. engage the contacts of a counterpart coupling on the adjacent car. The piston 16 in the last portion of its movement, when the couplings have engaged each other, stresses a spring 28 whereupon a latch 21 engages a locking pin 22 and the coupling is locked; the spring 28 resiliently holds the coupling members in engagement. Fluid pressure admitted through a train pipe 47 operates a piston 23 to release the latch 21, and the spring 28 then opens the coupling, a spring 27 restoring the parts to their original positions. The releasing piston 7 of the car coupling may be simultaneously operated through a ccck 46 and pipe 49. A rotating shutter 37, pivoted to the coupling casing and closed by a spring 40, is opened partially by a tappet 14 and rod 42 by the engagement of the coupling heads and an incline 44 on the contact carrier 11 co-operating with a face 45 on the shutter completes the opening movement as the carrier is projected forward. The train wires 13 are enclosed in a sleeve tube 30 which is clamped in a jaw 33 slidably mounted in the casing; this jaw is rigidly connected by an arm 32 with the frame of the contact carrier 11. Each wire has an independently flexible portion having a detachable plug connexion 31 with its respective contact 12. Any one of the circuits may thus be disconnected independently. The contact carriers 11 carry co-operating gaskets 50 to exclude dirt and moisture when the parts are coupled.
Patent GB-1365825-A (GB)
Title: Polymeric latices and suspensions based on vinyl chloride and vinylidene chloride homo- and co-polymers
IPC: C09K23/10
Filed: 1972-05-10
Abstract: 1365825 Polymerization process AMERICAN CYANAMID CO 10 May 1972 [4 June 1971] 21972/72 Heading C3P The polymerization in aqueous medium of vinyl or vinylidene chloride, optionally with up to 25% of comonomers, is effected in the presence of the isodecyl ester of sulphosuccinic acid or a soluble salt thereof. In an emulsion technique this is used as the emulsifying agent, in a suspension process it is used in conjunction with a protective colloid. Ethyl acrylate is used as comonomer in some examples.
Patent GB-1149913-A (GB)
Title: An improved magnetic recording medium
IPC: H01F10/28
Filed: 1966-05-18
Abstract: 1,149,913. Magnetic structures. MINNESOTA MINING & MFG. CO. 18 May, 1966 [1 July, 1965], No. 22180/66. Heading H1H. [Also in Division C7] A dielectric surface is provided with an electroless coating of, e.g. Fe, Ni, Co or alloys thereof to form a magnetic recording medium by first applying a layer of a polymer containing colloidal size particles (less than 1000 Angstroms) the polymer and the particles being such that together, in the absence of other materials, they have a surface resistance of at least 1 x 10<SP>6</SP> ohms per square. The colloidal particles may be Au, Pt, Ag, Rh, Ru, Ir, Fe, Co, Ni and Pd. The dielectric surface may be a polyethylene terephthalate film, and the polymer a vinylidene chloride-acrylonitrile copolymer, a polyester of ethylene glycol and terephthalic acid-isophthalic acid, polyvinyl chloride or chlorinated rubber. Examples are described of electroless cobalt and iron-cobalt solutions containing sodium hypophosphite, sodium potassium tartrate, acid ammonium hydroxide and sulphate.
Patent GB-1460564-A (GB)
Title: Stabilised polyalkylene terephthalate compositions
IPC: C08L67/02
Filed: 1975-05-22
Abstract: 1460564 Heat stabilized polyterephthalate compositions CELANESE CORP 22 May 1975 [11 June 1974] 22256/75 Heading C3R A heat stabilized polyester composition comprises (a) poly 1,3-propylene terephthalate or poly 1,4-butylene terephthalate of intrinsic viscosity of 0À4 to 1À5 dl./g., (b) a reinforcing filler, and (c) up to below 1% by weight, based on the composition, of a polyamide. Specified fillers are asbestos fibres, talc, calcium silicate, cellulosic fibres, cotton fabric, paper, metal powder and preferably glass fibres in an amount of from 2 to 60% by weight based on the composition. The polyamide may be derived from hexamethylene diamine and sebacic acid or dodecanedioic acid, polycaprolactam being used in the examples.