baber/WOPTO huggingface dataset:
Patent GB-1389309-A (GB)
Title: Apparatus for measuring properties of movement
IPC: G01D5/36
Filed: 1972-08-31
Abstract: 1389309 Optical detection of movement ERNST LEITZ GmbH 31 Aug 1972 [6 Sept 1971 8 Dec 1971] 40335/72 Heading H4D [Also in Division G1] In a device for measuring a property of relative movement (one dimensional, Fig. 1, two dimensional, Figs. 2 and 3), between a grating or a periodic optical array and an object, a double image of the object is formed (by a Woolaston prism, the spacing between corresponding image points being equal to the grating constant in Fig. 1) on the grating and the light passing through is received by one (four, Figs. 2, 3) pair of photo-detectors positioned with respect to a polarizing splitter so that each photo-detector receives light from a different one of the images, thus when there is relative movement the photo-detectors can provide signals whose frequency is proportional to the speed and whose phase difference sign indicates the direction of movement. Fig. 3, shows part of an array formed by transparent pyramids 21, 22, 23, 24, for use in a device (Fig. 2, not shown), for investigating two dimensional motion, and depending upon which face of each pyramid the radiation is incident or the radiation may be sent in one of four different directions (only two shown in Fig. 3). The pyramid grating replaces the line grating of Fig. 1, and four pairs of photodetectors are employed in the same fashion as before. The Woolaston prism is arranged so that the direction of the splitting of corresponding image points of the images, is parallel to the bisector of the two preferred directions of the pyramid raster patterns.
Patent GB-1058192-A (GB)
Title: Improvements in or relating to fluid seals
Inventor: JAMES DAVID RICHARD
IPC: F16J15/56
Filed: 1962-11-01
Abstract: 1,058,192. Seals. WILLIAMS & JAMES (ENGINEERS) Ltd. Nov. 1, 1963 [Nov. 1, 1962], No. 41295/62. Heading F2B. A seal for a piston or plunger comprises two axially-spaced seals 28, 29, the space between the seals being in communication with the liquid acting on the operative face of the piston or plunger, so as to lubricate the seals. As shown, the seal is mounted in an annular chamber 22 surrounding the plunger 14 of an hydraulic pump having a cylinder block 16 provided with inlet and outlet valves 17, 18. High and lowpressure seals 29, 28, which are preferably made of rubber, are held in place by a pair of telescoped tubular housings 23, 24 having seals 26, 27 on their end faces and pressed axially into engagement by a compression spring 25. An annular groove between the seals communicates through radial bones 30 with the chamber 22 through which the pump suction is led; if desired, the pump induction flow may be throttled before entering the chamber 22. In a modification, Fig. 2 (not shown), the seals are held in a common housing (33) which is mounted, together with a spacing sleeve (37), between the cylinder block and pump casing. When the invention is applied to a multiplunger pump, the chamber 22 constitutes a common gallery for the suction fluid inlet to the ports.
Patent GB-1269776-A (GB)
Title: Epoxides and halohydrins and conversion thereof to alkanolamine derivatives
Inventor: SMITH LESLIE HAROLD
IPC: C07D303/36
Filed: 1968-08-29
Abstract: 1,269,776. Epoxides, halohydrins, alkanolamines. IMPERIAL CHEMICAL INDUSTRIES Ltd. 26 Nov., 1969 [29 Aug., 1968], No. 41355/68. Heading C2C. Optically active compounds of the general formulµ and ZCH 2 .CHOH.CH 2 NR<SP>1</SP>R<SP>2</SP> (R<SP>1</SP>=alkyl, hydroxyalkyl, aralkyl, cycloalkyl; R<SP>2</SP>=H, α-aralkyl; Z=halogen) and their acid addition salts are prepared by resolution, and may be converted to optically active compounds of the formula (X = optionally-substituted aryl or benzo-fuzed heterocyclyl) and their salts by reaction with XOH or an alakli metal derivative thereof, followed by hydrogenolysis when R<SP>2</SP> = α-aralkyl and optionally followed by salt formation. The preparation of racemic starting materials is described.
Patent GB-1124571-A (GB)
Title: Improvements in or relating to electric motors with a bridge-type magnetic circuit
IPC: H01F7/16
Filed: 1965-09-29
Abstract: 1,124,571. Electric motors. G. STCHERBATCHEFF. 29 Sept., 1965 [30 Sept., 1964], No. 41374/65. Heading H2A. [Also in Division H1] The rotary armature 2 of an electromagnet, which may be used as a relay or an electric motor, has flanges at each end lying between stator poles excited by an annular, radially polarized permanent magnet 5 and a controlling coil 4 which diverts the flux to the inner or outer stator poles to produce rotary movement of the armature with or without axial movement. Rotary movement is produced by sectors (not shown) cut from the stator and armature polepieces. In the form shown, used for operating relay contacts (not shown), the armature pivots are carried on springs (not shown), permitting axial movement also. In the rotary D.C. motor shown in Fig. 7 the rotor carries a brush 40 engaging a commutator (not shown) on printed circuit winding 37. Alternatively, the exciting coil may be A.C. energized. Two such machines may be ganged together to operate with two commutators or from two-phase current. Various arrangements of tooth-pitch are described, e.g. the field teeth may have half the pitch of the armature teeth.
Patent GB-1387577-A (GB)
Title: Removal of surface metal by shaving
IPC: B23D79/12
Filed: 1973-09-05
Abstract: 1387577 Planing LASALLE STEEL CO 5 Sept 1973 41679/73 Heading B3L A process of removal of surface metal from elongate workpieces of repeating cross-section by means of a shaving tool through which the work is passed for continuous removal of surface metal comprises preheating to tool before the work is passed therethrough. The tool is preheated within the range 200-1800‹ F. The lower range is for non-ferrous workpieces, at least 500‹ F. for steel workpieces with the upper range being for high melting point metals and alloys.
Patent GB-1097170-A (GB)
Title: A timer having an adjustable timing cycle
IPC: G04C23/14
Filed: 1966-09-20
Abstract: 1,097,170. Time switches. MALLORY TIMERS Ltd. Sept. 20, 1966 [Sept. 20, 1965], No. 42024/66. Heading H2B. A timer having an adjustable timing cycle and a fixed service cycle includes a driving shaft, a gear-wheel 33 mounted on the driving shaft, a driving mechanism 29, 30, 35, 37, 36 driven by a pinion gear 32 also mounted on the driving shaft, and a segment gear 43 rotatable by the driving mechanism into engagement with the gear-wheel 33 after an adjustably predetermined number of revolutions of the driving shaft so as to be driven by gear-wheel 33 to rotate an output shaft 44 and cams 24, 25, 26 thereon through the fixed service cycle, gear 43 having a toothless portion of sufficient extent to disengage the segment gear 43 from the gear-wheel 33 at the end of the service cycle. The driving mechanism comprises a gear 29 and a cam 30 mounted thereon imparting motion to a cam follower 35 and drive arm 36 biased towards the cam 30 by a spring 37. End 38 of arm 36 rotates a ratchet 39 by a tooth for each revolution of cam 30, a back-up pawl 40 being provided for ratchet 39, until a post 50 on ratchet 39 engages a starter spring 45 which rotates gear 43 by a post 49 thereon until it engages and is driven by gear-wheel 33 (see also Figs. 3-5, not shown). Cams 24, 25, 26, driven by shaft 44 of gear 43 operate switches (20), (Fig. 1, not shown). At the end of the service cycle a post (55) underneath gear 43 engages a pivoted lever 19, which disengages arm 36 and pawl 40 from ratchet 39 which then returns to a position defined by a tong 54 on an adjusting plate 22 under the restoring force of a spring (53), (Figs. 3-5, not shown). Lever 19 is alternatively operated manually by a portion projecting through the escutcheon plate (11). Rotation of a knob 14 moves plate 22 to set the position of ratchet 39, and can also manually cause starter spring 45 to rotate gear 43 into engagement with gear-wheel 33. Knob (15) sets the hour of day at which the service cycle is to begin; the knob rotating with cam 30 and a slipping clutch allowing relative rotation of gear 29 and cam 30.
Patent GB-1217437-A (GB)
Title: Improvements in or relating to the production of perchloroethylene
Inventor: FEDER ERNST
IPC: C07C17/00
Filed: 1969-08-22
Abstract: 1,217,437. Perchloroethylene. DYNAMIT NOBEL A.G. 22 Aug., 1969 [23 Aug., 1968], No. 42082/69. Heading C2C. Perchloroethylene substantially free from 1,1,1,2-tetrachloroethane is prepared by reaction in the gaseous phase of chlorine and 1,2-dichloroethane, or a chlorinated hydrocarbon mixture in which 1,2-dichloroethane is the major component, in the presence of a fluidized bed of fine-grained surface-active materials, condensing the reaction products, distilling off some pure perchloroethylene from the higherboiling chlorination products present, distilling the residue, recycling the distillate containing the remainder of the perchloroethylene, together with impurities, to the reactor, adding further 1,2-dichloro-ethane or a chlorinated hydrocarbon mixture in which 1,2-dichloro-ethane is a major component, and effecting further chlorination.
Patent GB-1091694-A (GB)
Title: Apparatus for the production and purification of a sublimable substance
Inventor: JOLY MICHEL
IPC: B01J15/00
Filed: 1965-10-04
Abstract: 1,091,694. Production and purification of sublimable substances. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 4, 1965 [Oct. 7, 1964], No. 42098/65. Headings B1B and B1F. A sublimable substance is produced by chemical reaction between a solid and a gas, e.g. beryllium chloride by the action of hydrochloric acid gas on beryllium in flake form, and is purified by sublimation and condensation, the production, sublimation and condensation being carried out in the same tubular chamber 2. Flakes of beryllium are introduced through a throttle device 22 into tank 16 situated in a zone heated by a jacket 4. Gaseous hydrochloric acid is admitted via inlet 6, beryllium chloride forming and being immediately sublimed with condensing taking place on a vibrating U-shaped element 30 through which refrigerant flows. The vibrations cause the product to be detached and it collects in chute 42 and passes from there via duct 44 to a recovery box. The tube may be initially purged by a steam of anhydrous inert gas, e.g. argon, introduced through duct 8. Baffles 48 and 18 may be provided.
Patent GB-1166823-A (GB)
Title: Single-Layer Cylindrical Windings for Inductive Apparatus
Inventor: BICKLEY TREVOR ARTHUR
IPC: H01F27/34
Filed: 1965-10-06
Abstract: 1,166,823. Transformer. ENGLISH ELECTRIC CO. Ltd. 4 Oct., 1966 [6 Oct., 1965], No. 42379/65. Heading H1T. To reduce damage caused by surge voltages, single-layer cylindrical winding 40 is connected in series with main high voltage winding 33, and comprises two similar, insulated conductor members wound together, one comprising turns 1 to 8 and the other turns 9 to 16. Turns 8 and 9 are connected and the connection is tapped. Two windings 40 may be employed. Further tapping points 41 and 44 are provided at the ends of the or each winding 40, and a tapchanger may be employed to vary the output voltage of the transformer. In normal operation current flow is through consecutivelynumbered turns, and the ampere-turns produced are additive. Interleaving of the conductors prevents damage under surge or impulse conditions by providing a substantially non-inductive capacitative pack for the resulting transient current. The winding may be made up with two paths in parallel and a total of four conductors wound together, or be made up of conductors so connected that tapping connections may be taken from its centre or from points distributed along its length. Windings interleaved in this way may be used as tapping windings for reactors, or be complete transformer or reactor windings, and may be associated with tapchangers of any suitable construction.
Patent GB-1284238-A (GB)
Title: Brake control system
IPC: B60T8/176
Filed: 1970-09-08
Abstract: 1284238 Antiskid braking systems NORTH AMERICAN ROCKWELL CORP 8 Sept 1970 [9 Dec 1969] 42903/70 Heading F2F A pneumatic antiskid brake system comprises a source of superatmospheric air, an operator controlled valve 36 having an inlet connected to the source and an outlet connected to a normally open solenoid-operated valve 66 the outlet of which is connected to the first inlet of a relay valve 48 the second inlet of which is connected to the pressure source and the outlet of which is connected to the brake actuators, means for sensing angular velocity of at least one wheel and providing a signal the frequency of which indicates wheel velocity and control means which receives the signal and in response to an indication of incipient wheel lock actuates the valve 66 to modify the pressure between valve 36 and the relay valve. Protection against malfunction is provided by circuits which check the solenoids when the vehicle is started and which check comparator circuits.
Patent GB-1480118-A (GB)
Title: Electrostatic copying method
IPC: G03G15/10
Filed: 1974-10-03
Abstract: 1480118 Electrostatic printing FUJI XEROX CO Ltd 3 Oct 1974 [9 Oct 1973] 43016/74 Heading G2H A process of developing an electrostatic latent image comprises a first step of applying a liquid developer from a developing surface having substantially uniform projections thereon, the developer being only in the spaces between the projections, to the latent image on a recording member, and a second step of applying to the image an insulating liquid to complete any unfinished development by electro-phoresis. Two developer compositions are given.
Patent GB-1311231-A (GB)
Title: Process for producing low crimp polyethylene oxybenzoate yarns
IPC: D01D5/22
Filed: 1971-09-16
Abstract: 1311231 Polyethylene oxybenzoate filaments UNITIKA Ltd 16 Sept 1971 [16 Sept 1970] 43328/71 Heading B5B [Also in Division D1] A process for producing polyethylene oxybenzoate yarns having a low crimp and silk-like appearance comprises heat treating polyethylene oxybenzoate yarns having a shrinkage in boiling water of from 20 to 35% and a #-value of from 20 to 80 in a substantially relaxed state until the #-value of the yarn decreases by more than 10. The #-value of the yarns is defined in the Specification and relates to the percentage of #-type polyethylene oxybenzoate crystals in the yarn. The heat treatment of the yarns is preferably carried out in the dry state at a temperature of from 140-180 C. for 10 to 60 minutes or in the wet state at a temperature of from 70-140 C. for 10 to 120 minutes. The starting material PEOB yarns are preferably prepared by stretching a melt-spun PEOB multifilament yarn at a temperature of from 75 to 100 C. and a draw ratio of from 3 to 5 and then heat setting the drawn yarn at constant length at a temperature of from 75 to 115 C., suitably by using the apparatus of, Fig. 6 (not shown), which comprises feed rolls, heated stretching pin, draw rolls, heat setting plate and a wind-up bobbin. The thus produced yarn is then heat treated by removing the bobbin and wet or dry heating the resultant yarn cake. Where the yarn is to be knitted or woven into a fabric it is preferred to treat it prior to knitting or weaving by applying a sizing liquid (e.g. acrylic-type or polyvinyl alcohol-type sizing agents, carboxymethyl cellulose or α-starch) in an amount of from 10 to 30% by weight to preliminarily expand and fix the interstices between fibres of the yarn and de-size (by scouring) the fabric after knitting or weaving.
Patent GB-1244351-A (GB)
Title: Polymers
Inventor: POPE GEORGE ARTHUR
IPC: C08K5/00
Filed: 1968-09-14
Abstract: 1,244,351. Cross-linking polymers. DUNLOP HOLDINGS Ltd. 12 Sept., 1969 [14 Sept., 1968], No. 43818/68. Headings C3G and C3P. A polymer is lithiated by reacting with a tertiary amine complex of an organo-lithium compound and is then cross-linked by being exposed to oxidizing conditions. Suitable oxidizing conditions are air, oxygen and ceric ammonium nitrate. Exemplified polymers are polybutadiene, ethylene propylene terpolymer, styrene-butadiene block polymer, styrene-butadiene graft polymer, polystyrene, styrenebutadiene copolymer, polyisoprene and mixtures of polyisoprene and styrene-butadiene copolymer. In a modification polyisoprene was grafted with styrene after lithiation and then reacted with oxygen. To make threads, a solution of the polymer is lithiated then extruded into air.
Patent GB-941517-A (GB)
Title: Automatic stop device in power looms
IPC: D03D51/34
Filed: 1959-12-24
Abstract: 941,517. Centre weft fork stop mechanisms. K. SAKAMOTO. Dec. 24,1959, No. 43898/59. Heading D1E. A centre weft fork 28 is mounted on a pivot plate 25 having a follower 24 acting on a cam 20 mounted on a rotating tube 19 on the sley 1. The follower 24 is prevented from entering a cam recess 21 by the action of the weft F on the forks 28. Upon weft failure the follower 24 enters the recess 21 and continued rotation of the cam causes the end 29a of a lever 29, mounted on the cam, to engage the follower 24 so that the lever 29 pivots and uncovers the end of the tube 19 allowing a rod 18 therein to be moved out by a spring 36 causing a lever 34, on the loom frame, to pivot and bring a stop 34a into the path of a lever 40, on the sley 1, which, on pivoting, stops the loom by moving the starting handle 44 in the direction of the arrows. The cam tube 19 is driven from the tappet shaft 4 by sprockets 5, 7, bevel wheel 6, bevel wheel clutch 12,14, shaft 9 and bevel wheels 11, 22. When the starting handle stops the loom a lever 45 is pivoted bringing a plate 48 into a slot 17a on a disc 17 attached to the shaft 9 causing the shaft 9 to stop and the clutch member 14 to rise against a spring 15 to allow the bevel wheel 12 to rotate freely on the shaft 9. Restarting of the loom causes a follower 66 to bear on a cam 65 to withdraw the rod 18 into the tube 19.
Patent GB-1388117-A (GB)
Title: Method and blocks for building
IPC: E04B2/08
Filed: 1971-09-21
Abstract: 1388117 Toy building blocks H H J WEEKS 23 Feb 1972 [21 Sept 1971] 43903/71 Heading A6S [Also in Division El] Parallelepipedic building blocks for toys &c have a pair of parallel identical dovetail tongues 2 or grooves 3 on each of two opposed faces and only one dovetail tongue 4 or groove on each of another pair of opposed faces, the blocks being built up into rows and tied to adjacent blocks on four faces by sliding complementary tongues into complementary grooves or by sliding double dovetail joiners into opposed dovetail grooves. Blocks having grooves on one, two, three or four faces, and tongues on one, two or three faces are disclosed together with blocks for forming foundation courses, corner posts, door and window frame members and wall plates. The blocks may be solid hollow or recessed and made from metal, plastics, rubber, concrete or wood. The tongues or grooves may be defined by sheet metal inserts in a cast core.
Patent GB-1172601-A (GB)
Title: Acylphenylaminoanthraquinone Dyes for Linear Polyester Materials
IPC: C09B1/514
Filed: 1967-09-27
Abstract: 1,172,601. Anthraquinone dyes. TOMS RIVER CHEMICAL CORP. 27 Sept., 1967 [27 Sept., 1966], No. 43922/67. Heading C4P. [Also in Division D1] Dyes of general formula wherein R is H, C 1 -C 9  alkyl, halo-alkyl, hydroxyalkyl, phenyl or substituted phenyl, ring A may be substituted by halogen, hydroxy, alkyl or alkoxy, W is H, halogen, alkyl or alkoxy, and X, Y and Z have the following relationships: (a) X, Y and Z are independently H or hydroxy, (b) one of X, Y and Z is benzamido, p - toluenesulphonamido, benzenesulphonamido, hydroxy, amino or alkoxy and the remaining substituents are H, (c) X is hydroxy, Y and Z are each chlorine or hydroxy provided that when one of Y and Z is hydroxy the other is nitro or Formula (II), or (d) X is methoxy, one of Y and Z is methoxy and the other is Formula (II), are used to dye polyester fibres; some of the dyes are novel. They are prepared by (a) reacting an anthraquinone compound containing at least one amino group with a halogenated compound, (b) reacting a chloroanthraquinone with a m- or p-aminophenylketone, (c) heating lenco 1,4,5,8-tetrahydroxy anthraquinone, or dinitrochrysazine or dinitroanthrarufin, or a mixture of quinizarin and lencoquinizarin and boric acid with a m- or p-aminophenylketone in a solvent. The following dyes are claimed per se
Patent GB-1436602-A (GB)
Title: Indicating push button for push button switches
IPC: H01H9/16
Filed: 1973-09-24
Abstract: 1436602 Indicators for switches RUDOLF SCHADOW GmbH 24 Sept 1973 44586/73 Heading H1N An indicator 7, Fig. 1b, for the pushbutton 5 of an electric switch comprises two indicating surfaces 8a, 8b set at an angle to each other and mounted on a common axis which is moved during actuation of the button 5 in such a manner that each indicating surface 8a, 8b is alternately brought adjacent an end window 6 of the button 5. In the example of Fig. 1b a pair of pivot pins engaged in holes 17 are mounted on a pair of arms 10b pivoted at 16b on opposite sides of the window 6 and are moved from side to side by a swinging frame 9 pivoted at 13a at the rear end of the button 5 and having radial slots 20 engageable with the pins in the holes 17. U-shaped springs 11 mounted on the fixed frame 4 have projections 15b engageable with cam faces 14 on the frame 9 and cause the frame 9 to pivot in one direction when the button 5 is depressed and in the opposite direction when the button 5 is released, whereby one or other of the surfaces 8a, 8b is swung into the viewing position. In a modification projections (19a), (19b), Fig. 3b (not shown) on the button 5 engage the edges of the indicator 7 to assist its side to side swing- ing. In a further modification the indicator 24, Fig. 4b has teeth 27a on a quadrant engaged by a fixed rack 28a on the button whereby the indicator is caused to rotate as it is swung from side to side by arm 22.
Patent GB-1502277-A (GB)
Title: Electrically heatable pads or blankets
IPC: H05B3/34
Filed: 1975-10-14
Abstract: 1502277 Electric resistance heating DREAMLAND ELECTRICAL APPLIANCES Ltd 14 Oct 1975 [15 Oct 1974] 44616/74 Heading H5H An electric heating pad or blanket has a heating element 14 or 15 arranged in a series of spaced U- shaped runs longitudinally of the blanket, converging towards a centre line 19 at a part 20 to provide there a greater heating effect. A switch may connect two elements 14, 15 to the supply in series or in parallel or connect only one to the supply to vary the overall heating effect. The elements are arranged in pockets formed by lines of sewing or welding.
Patent GB-919337-A (GB)
Title: Vacuum cleaner connector
IPC: F16L11/127
Filed: 1961-12-13
Abstract: 919,337. Hose connectors. DAYCO CORPORATION. Dec. 13, 1961 [Feb. 27, 1961], No. 44695/61. Class 99(1). In a vacuum cleaner hose assembly including a hose 12 having a number of electrical conductors 13, 14 incorporated therein, there is a connector at one end of the hose for providing electrical and vacuum continuity and which comprises inner and outer sleeves 31, 32 and an electrical fitting 33 interengaged between the sleeves so that any strain on the connector is absorbed by both sleeves. As shown, the sleeve 31 has an outwardly angled boss 40 formed with two pairs of lips 41, 42 and 43, 44 with transverse ridges 45, 46 therebetween defining a groove 47, and the sleeve 32 has a similarly outwardly angled hollow member 50 provided with an inwardly extending pair of lips 54 and a transverse groove, the grooves and lips respectively of the two members being, on assembly of the members, oppositely disposed to grip the fitting 33. The member 31 has rows of lugs 35 axially spaced with a helical pitch and interengaged with the wires 13, 14 when assembled on the hose with a screwing action, the free ends of the wires being attached to the wires 60, 61 of the connector 33 by means of clips 62, 63. The connector is placed in the boss 40 and the sleeve 31 is then pushed into the sleeve 32; the latter is provided with grooves 48, 49 which receive locking rings 38, 39 on the sleeve 31.