baber/WOPTO huggingface dataset:
Patent GB-726487-A (GB)
Title: Improvements in electromagnetic clutches
Inventor: HARTER PAUL ANDREW
IPC: F16D27/112
Filed: 1953-07-07
Abstract: 726,487. Friction clutches. WARNER ELECTRIC BRAKE AND CLUTCH CO. July 7, 1953, No. 18798/53. Class 80 (2). An electromagnetic clutch comprises an inner pole ring 18 rigid with a sleeve 25 secured to a driven shaft 27, an outer pole ring 17 secured to the ring 18 by a non-magnetic disc 16 and a friction disc 21, and a disc armature 10 which is splined on a member 13 secured to the driving shaft 15 and which is attracted into frictional engagement with the disc 21 upon energization of a winding 12 located in a member 30 between outer and inner pole rings 31, 32 within which the rings 17, 18 are telescoped so as to form narrow annular air gaps 40, 41. The member 30 is prevented from rotating by a fixed stop 37 engaging an abutment 36 thereon, but is supported both radially and axially solely by the sleeve 25 through a bush 28 pressed in the member 30. The ring 18 may be telescoped in an annular groove in the ring 32.
Patent GB-333682-A (GB)
Title: Improvements relating to apparatus for indicating or recording small electric potentials
IPC: A61B5/0432
Filed: 1929-06-19
Abstract: 333,682. Merchant, E. W., Burkitt. J. K., and Langley, A. H. June 19, 1929. Magazine hand cameras for roll films; tell-tale apparatus. -For indicating small electric potential differences, a string galvanometer is combined with a thermionic valve amplifier, means for adjusting the amplification factor, and a camera feeding a record film and having an automatic film cutter. As shown in Fig. 1, the galvanometer e, projecting lenses g, h, light source f, and amplifier A are mounted in one compartment a on the panel c of which are located the controls, and the camera is contained in another compartment b. The beam passes through a, further lens j to the camera, and a, prism or reflecting mirror k is provided to enable images of the string to be thrown on a screen in the lid d. The lid s of the camera operates a lever q which releases a cutter p for severing the exposed film, which may be advanced by clockwork mechanism. A spoked wheel may be driven through the beam to provide markings on a time basis. Specification 180,296, [Class 37, Electricity, Measuring &c.], is referred to.
Patent GB-840104-A (GB)
Title: Improved liquid hydrocarbon conversion process
IPC: C10G9/30
Filed: 1958-06-12
Abstract: <PICT:0840104/III/1> A hydrocarbon conversion process, particularly applicable to fluidized bed coking, in which vaporized products from a reaction zone are passed into a scrubbing zone where a heavy end liquid fraction is obtained, is characterized by mixing at least a portion of the heavy end liquid withdrawn from the scrubbing zone with substantially all the fresh feed to be introduced into the reaction zone, and passing one portion of the mixture so obtained to the scrubbing zone and another portion to the reaction zone. As shown, a suitable embodiment comprises a fluidized bed reactor 10 suitably of sand 13 at 800-1200 DEG  F., a scrubbing vessel 11, and a mixer 12.  A mixture of fresh feed such as heavy crude and heavy ends is introduced into reactor 10 through nozzles 52, where it passes into hot fluidized bed 13 and where the hydrocarbons present are converted to lighter materials which vaporize and pass through cyclone separator 20 into scrubbing zone 11.  The fluidized bed solids gradually become coked and are continuously or intermittently removed by lines 15 and 17 to a burner (not shown) where the carbon is oxidized to produce the thermal energy required in the process, after which the residual inert solid is returned to the bed by line 14.  The vapours entering the scrubber 11, usually at 950-1050 DEG F., are scrubbed with fresh feed/heavy end mixture introduced through 27, while other quenching or stripping materials may be introduced through 53.  Heavy ends collect in holdup section 28, while naphtha fractions are removed by line 25, gas oil by line 24, and light petroleum by line 26.  The scrubber bottoms are removed by line 29 and 30-70% is passed back through lines 33 and 41 to mixer 12.  The remainder may be recirculated to scrubber 11 through line 34 or run off through line 31.  The fresh feed at 200-400 DEG  F. entering mixer 12 by line 42 is mixed with the scrubber bottoms and passed by lines 46 and 48 to reaction zone 10, the various flow rates being controlled by valves 45, 47 and 51; some of the mixture passes by line 36 to scrubber 11.  The process may also be applied to such other conversion processes as visbreaking, re-forming and catalytic cracking.
Patent GB-498661-A (GB)
Title: Improvements relating to heat-insulated flasks
IPC: A47J41/02
Filed: 1938-06-24
Abstract: 498,661. Vacuum &c. flasks. FRISCHER, R., and SCHMIDT, F. June 24, 1938, No. 18809. Convention date, Feb. 15. [Class 29] [Also in Groups XIV and XVII] A heat-insulated flask, e.g. a vacuum flask, is provided with a metal casing 5 secured to a rubber &c. cap 3 formed with a protective collar 7 and a flange 8, over which the usual cup is placed. The cup may be of toughened glass and provided with a fluted rubber band 10.
Patent GB-296979-A (GB)
Title: Improvements in the manufacture of loaded conductors
IPC: H01B11/14
Filed: 1928-06-29
Abstract: 296,979. Electrical Research Products, Inc., (Assignees of Gilbert, J. J.). Sept. 10, 1927, [Convention date]. Loading circuits to improve transmission. - In order to improve the transmission characteristics of continuously loaded submarine cables by reducing the variation of inductance with magnetizing force, the cable is placed in a natural or artificially produced unidirectional magnetic field, and an alternating field, which is gradually diminished to zero, is superimposed. Fig. 4 shows the method as applied to a cable during the laying operation. When the cable section 1 has been laid, a direct current field of about 0.3 gauss is impressed on the section 1 from the battery 2, and an alternating current is passed through the section from' the alternator 3. A current of from 0.1 to 0.5 amperes at 60 cycles may be employed. By means of an adjustable resistance 4 the alternating current is gradually reduced to zero. Fig. 5 shows further means for carrying out the invention. The cable 10 is connected to earth through the key 11 and tuned circuit 12. A shunt circuit comprises a key 13, a battery 14 and a resistance 15. The key 11 is closed, and then, to impress a direct current surge on the cable, the key 13 is closed, thus setting up a damped oscillation in the tuned circuit 12 and impressing a damped alternating current on the cable. In another modified method, the unidirectional magnetic field is obtained by laying the cable so that the portion to be influenced lies at the requisite angle to the earth's magnetic field. Specification 235,570, [Class 36, Electricity, Conducting &c.], is referred to.
Patent GB-945680-A (GB)
Title: Improvements in or relating to multi-spindle automatic machine tools
Inventor: HOLMES ALFRED
IPC: B23B9/02
Filed: 1960-05-30
Abstract: 945,680. Automatic lathes; bar feeds. BIRFIELD ENGINEERING Ltd. May 30, 1961 [May 30, 1960], No. 18980/60. Headings B3B and B3T. Control apparatus for a multispindle bar machine automatically feeds a new bar to the " empty " spindle when the slug end is too short to reach the stock stop. A combination of electric and pneumatic circuitry is used. The machine comprises a rotary indexing drum 2, Fig. 1, with spindles such as 5. A main cam-shaft 3 controls indexing of the drum and feed of the tools and also operation of the collet 4 at the parting-off station. When the collet is opened a conventional reciprocating gripper device operates to feed the bar against a stock stop 6, Fig. 3. During machining the stock stop is pivoted aside on the shaft 29 but in the stock feed operation below, only the section 32 is moved by a pneumatic cylinder 34. A stock reel 7, Fig. 4, is positioned behind the drum 2 for indexing movement therewith and guides 8 therein are aligned with the machine spindles. Stock bars 19 are positioned on a ramp 14 adjacent the position or station in alignment with the parting off station of the machine. Five spaced lifting cylinders 20 lift the lowest bar over the step 18 to charge the reel. A pusher 23, Fig. 1, attached to a chain 26 driven by an electric motor 25, moves the bar 19 into a spindle 5. A separate " short-feed " chain 36 driven through an overload clutch is employed to move the pusher to its final feed position. The control means includes a switch-operating cam-shaft 55 driven from the main cam-shaft 3 and a control gear cabinet 62 with switches for automatic or manual operation. If the bar at the parting-off station is exhausted and does not reach the stock-stop 6 a switch therein remains closed and the automatic change can take place if the control box 62 is so set. A main camshaft control lever 73 is moved to stop the camshaft 3 so that normal machine operation is halted and cylinder 34 swings part of the stockstop away so that the slug end may be ejected. A timing cylinder with a flow regulator then comes into operation prior to the lifting of a fresh bar over the step 18 and into the reel behind the slug-end. The timing cylinder ensures that the bar is in position in the reel before motor 25, driving the pusher, is operated. When the leading end of the fresh bar 19 reaches a set position forward of the stock reel a switch is tripped which starts the motion of the short feed chain 36 which carries on the feed of the bar up to a position where the end can be faced at the start of a fresh cycle of operations. Motor 25 is then reversed to return the pusher back to its rearward position and lever 73 is finally moved to start up the main cam-shaft.
Patent GB-516442-A (GB)
Title: Improvements relating to artificial flowers
IPC: A41G1/00
Filed: 1938-06-27
Abstract: 516,442. Artificial flowers. HALDER, G. E. June 27, 1938, No. 18989. Drawings to Specification. [Class 63] An artificial flower is provided with a bud or other structural formation separate from the bloom containing an absorbent wad serving as a storage medium for applied perfume, the appropriate perfume itself and a perfume fixative. The absorbent material may be wool, cotton or the like admixed with chalk, clay, vegetable paste or powdered flower petals, leaves or stalks.
Patent GB-1179554-A (GB)
Title: Fabric Draw-Off Mechanism
Inventor: PEBERDY ROLAND
IPC: D04B15/88
Filed: 1966-04-30
Abstract: 1,179,554. Kniffing-machines. BENTLEY ENG. CO. Ltd. 26 April, 1967 [30 April, 1966], No. 19093/66. Heading D1C. In a circular knitting machine fabric take up is carried out by a series of wheels 18 arranged around the inside of the needle cylinder which are rotated by a worm 38 in such a way that fabric is drawn inwardly away from the needles. The wheels are vertically adjustable and are spring loaded downwards. In the case of a stationary cylinder machine the worm 38 is driven from the rotating cam boxes and in the case of a rotating cylinder machine the worm is stationary. During reciprocatory knitting the wheels are rotated only when the cylinder moves in the direction of normal rotary knitting, the drive to the worm being provided through a ample ratchet mechanism, so than an even tension is maintained.
Patent GB-988820-A (GB)
Title: Improvements in or relating to composite electrical connector housings comprising modular housings
IPC: H01R13/64
Filed: 1963-05-14
Abstract: 988,820. Two part couplings. AMP INCORPORATED. May 14, 1963 [June 18, 1962], No. 19109/63. Heading H2E. A multi-way connector assembly 2 (Fig. 1) comprises a number of identical connector units (Figs. 2, 3) which are individually movable relative to the assembly for alignment with a complementary mating assembly 4 (Fig. 1) each unit having contact elements (Fig. 16, not shown) received in cavities and having leading edges shaped to accomplish alignment in two stages. In the first stage the slot 39 receives the rib 37 of an identical unit, and the curved surface 46 engages the end of wall 34, and in the second stage the rounded edges of walls 42 and 35 co-operate with the curved surfaces towards the ends of walls 32 and 44 respectively, and then with the rounded edges of projections 28, 30, 38, 40. The units have slots 18 to fit on to flanges 56 (Fig. 1) of the two supporting rails 54, being located by ribs 20, and the rails are held in position by two end pieces 70 (see also Fig. 13, not shown) having slots 73 to fit over the flange. Each end 70 is locked by the clip 79 (Fig. 20) having a spring tongue 83 engaging a recess 75, and rods 68 (Fig. 1) extend through the assembly carrying nuts to secure ends 60 of the outer cover to the assembly of units. The connector parts 2 and 4 may be held together with a captive screw 94, or with a spring clip 128 (Fig. 20) at each end. Several units may be oppositely arranged (Fig. 4, not shown) to facilitate visual identification of the connector and of its orientation. Specification 960,997 is referred to.
Patent GB-404220-A (GB)
Title: Improvements in or relating to magnesium alloys
IPC: C22C23/00
Filed: 1933-07-06
Abstract: Alloys, particularly for use as getters in thermionic tubes and the like consist of magnesium, barium, and strontium, preferably at least 50 per cent of magnesium, at least 10 per cent of barium, and at least 5 per cent of strontium.  The alloys may be powdered and moulded into tablets.
Patent GB-530233-A (GB)
Title: Improvements relating to shelves for refrigerators
IPC: F25D25/02
Filed: 1939-07-01
Abstract: 530,233. Shelves. HALLOCK, R. L. July 1, 1939, No. 19232. [Class 52 (i)] Refrigerator shelves 11 are mounted on bails 16, pivoted in supporting brackets 15, which can be turned upwardly to raise the shelf. The whole device may also be slidable in the brackets 15.
Patent GB-1448011-A (GB)
Title: Methods of manufacturing semiconductor devices
IPC: H01L21/761
Filed: 1973-04-24
Abstract: 1448011 Semi-conductor devices FERRANTI Ltd 22 April 1974 [24 April 1973] 19256/73 Heading H1K In a method of simultaneously diffusing to different depths in a monocrystalline semiconductor body 13 two spaced regions 18, 19 of the same conductivity type, in which the deeper region 19 extends through a heavily doped surface region 11 and encircles the other region 18 which does not extend beyond the surface region 11, a layer 15 of a diffusion-retarding material is selectively formed over the shallower region 18 before the diffusion of the regions is effected. Adjacent the diffusing-retarding layer 15 and covering the remainder of the surface 12 of the body 13 apart from that overlying the region 19, there is provided a layer of diffusion-resistant material, e.g. thermally grown silicon oxide, to mask the body in these regions against diffusion. The deeper region 19 is employed at least partially to isolate the device, e.g. a tri-mask bipolar transistor, as shown, or a collector-diffusion-isolation bipolar transistor, Fig. 4 (not shown), within the semiconductor body. The diffusion-retarding material 15 may comprise intrinsic polycrystalline silicon 3000 Š thick which may be employed after the diffusion process as part of the contact to the emitter region 18. In addition the layer 15 may be partially doped with impurity during the formation of the regions 18, 19 and may thus be employed as a resistor connected to the emitter 18.
Patent GB-1422550-A (GB)
Title: Skirting board system
IPC: E04F19/04
Filed: 1973-04-24
Abstract: 1422550 Skirting board H G JONASON J O LINDSTROM and R S HALVARSSON 24 April 1973 [24 April 1972] 19263/73 Heading E1B A skirting board 2, having a generally U- shaped cross-section is attached to a wall by retaining members 1, also of U-shaped crosssection, and covers the turned up edge of a carpet 6. A grooved portion 2g on the skirting board engages a smilar grooved portion 1b on the retaining member, and the latter is provided with lugs 1c, 1d for nails and holes le, If for a screw. The skirting board may be finished by an end piece, Fig. 3. (not shown), and corner cover plates Figs. 4 and 5 (not shown) may be used. The skirting board is of a plastics material and the retaining member of metal or plastics material.
Patent GB-461181-A (GB)
Title: Process for improving the fastness of dyeings
IPC: D06P1/655
Filed: 1935-07-05
Abstract: Substantive dyes, dyeing with.--The fastness to washing of dyeings with substantive dyes on cellulosic materials is improved by treating the dyed materials with solutions of such non-substantive quaternary ammonium or phosphonium or ternary sulphonium compounds as are not dyestuffs and contain at least two such quaternary or ternary groups and also aromatic and/or heterocyclic radicles, but no aliphatic radicle containing 7 or more carbon atoms, any quaternary N atom present being a member of a heterocyclic ring or the N, P or S atom of any quaternary ammonium or phosphonium or ternary sulphonium group present being attached to the aromatic or the first-mentioned heterocyclic radicle by an aliphatic bridge containing less than 7 carbon atoms.  The use of the quaternary ammonium compounds described in Specifications 423,933 and 435,388 is excluded.  In examples, (1) a dyeing with Sirius blue BR is treated for \ba1/2\be hour with a solution at 30 DEG  C. of the reaction product from pyridine, and dichlorodiacetyl-1 : 4-phenylenediamine; (2) a similar dyeing is similarly treated with a solution of the diquaternary base obtained by treating with dimethyl sulphate, in presence of excess of alkali, the imidazole from 3 : 4 : 3<1> : 4<1>-tetraminodiphenylmethane and either phthalic anhydride or acetic acid; (3) a similar dyeing is similarly treated with a solution of the diquaternary product obtained by treating with p-toluenesulphonic acid methyl ester the tertiary base obtained by the action of dimethyl sulphate on the imidazole from p-phenylenediglycine and o-phenylenediamine; (4) a similar dyeing is similarly treated with a solution of the diquaternary base obtained by treating with dimethyl sulphate, in presence of excess of alkali, the hydrochloride obtained by treating dichloracetone (1 mol.) with 2 : 6-diaminopyridine (2 mols.); (5) a dyeing on cotton with Brilliant benzo fast violet 5RH is treated for \ba1/2\be hour with a solution at 30--35 DEG  C. of the di-(benzyltriphenylphosphonium) dichloride; (6) a dyeing as in (1) is similarly treated with a solution of either the hexaquaternary ammonium bromide obtained by the action of trimethylamine on hexabromohexamethylbenzene or the hexa-ternary sulphonium bromide obtained by treating with methyl bromide the mercaptan obtainable by the action of sodium sulphide on hexabromohexamethylbenzene; (7) a dyeing as in (5) is similarly treated with a solution of a pyridinium base of a resin obtained by the action of formaldehyde in presence of hydrochloric acid on a technical cresol mixture.  Dichlorodiacetyl - 1 : 4 - phenylenediamine is obtained by condensing 1 : 4-phenylenediamine with chloracetyl chloride in presence of sodium carbonate.  Di - (benzyltriphenylphosphonium) dichloride is obtained by interaction of 4 : 4<1>-di-(chloromethyldiphenyl (1 mol.) with triphenylphosphine (2 mols.)
Patent GB-956736-A (GB)
Title: Improvements in or relating to lathes
IPC: B23Q35/18
Filed: 1962-05-18
Abstract: 956,736. Copying lathes. SZERSZAMGEPFEJLESZTO INTEZET. May 18, 1962 [Nov. 13, 1961], No. 19333/62. Heading B3T. A copying lathe of the type incorporating automatic servomotor operation of the tool carriage includes a device for steplessly varying the tool feed rates between wide limits which comprises a spindle 27, axially movable and rotatably driven, which in co-operation with a valve 28 controls the movement of a piston 29 effecting traverse of a main carriage 30. A carriage 12, carrying a tracer 7, is relatively movable with respect to the main carriage 30 by hydraulic cylinder 13 and a copying valve 10. Upon closure of starting switch 1 electromagnet 6 is energized rotating the tracer 7 towards the template and opening the valve 10 and contact 18 to move the carriage towards the workpiece 62. This releases lever 14 from hook 3 on the carriage which closes contact 17 of electromagnet 16 which is not energized due to contact 18 being open. Engagement between the template 19 and tracer 7, at a given point, permits the closure of contact 18 which energizes magnet 16 causing a downward movement of rod 20. This permits anticlockwise rotation of lever 23 and subsequent skew of roller 25 in contact with the spindle 27. The skew of the roller 25 creates axial movement of the spindle 27 which operates the valve 28 to produce traverse of the carriage. The detectors 32, 34 and 36 in co-operation with stops 33, 35 and 37 actuate selected electrical contacts and together with the ratchet wheel 42 and relatively rotatable discs 47, 48 effect control on the number of operations performed before rapid return of the carriage to its initial position. The rotation of the disc 48 permits alteration of the feed rate by co-operation between stops 63 and rod 54, the stops being adjustable which determines the skew position of the roller 25 and hence the feed rate for each operation phase. The displacement of the roller is logarithmic which reduces errors in adjustment at small feed rates. The template 19 used with this device includes a number of radially disposed plates on a rotatable rod, the tracer engaging different plates for different phases of operation, the template being rotated by a worm and wheel 59.
Patent GB-1070192-A (GB)
Title: N-vinyl-carbamic acid esters and process for their manufacture
IPC: C07C271/12
Filed: 1964-05-11
Abstract: Compounds of the formula CH2=CHNR1.COOR2, where R1 is hydrogen or alkyl and R2 is alkyl, are prepared by heating CH3CHOR.NR1.-COOR2, where R is alkyl, in the presence of a soluble organic or inorganic acid imparting to the ester a pH of 3-5.5, the acid being used in an amount of at least 0.1 mol per cent.  Suitable acids are phosphoric, oxalic, succinic, tartaric, malic, lactic, citric, hydroxybutyric, adipic, mesoxalic, hydroxypivalic, glutaric and itaconic. The preferred temperature is 50-200 DEG  C.; hydroquinone may be present as stabilizer for the product.
Patent GB-778167-A (GB)
Title: Improvements in ultrasonic probes
Inventor: BINCER HANS
IPC: G01B17/02
Filed: 1954-07-02
Abstract: 778,167. Ultrasonic gauging. BABCOCK & WILCOX, Ltd. July 1, 1955 [July 2, 1954], No. 19532/54. Class 118 (2). [Also in GroupXXXIX] An ultrasonic probe com prises two contact mem bers 1, 2 separated by an air gap which acts as an acoustic screen betweer them, two transducers, such as piezo-electric crystals 34 35, associated with the contact members, and an electrical screen, such as a brass plate 25, between the twc transducers. A portion of the brass plate 25 is cut away and replaced by brass foil 31 between the contact members 1, 2.
Patent GB-673315-A (GB)
Title: Preparation of ethyl gamma-phenylacetylacetate
IPC: C07C69/95
Filed: 1949-08-04
Abstract: Ethyl g -phenylacetoacetate is manufactured by cleaving ethyl a -acetyl-g -phenylacetoacetate by means of sodium methoxide.  The product may be isolated by pouring the cold reaction mixture into water at pH 3-4, extracting with ether, distilling under vacuum and collecting the middle fraction of the distillate.  In an example, the reaction is effected at room temperature in methyl alcohol as solvent.
Patent GB-238228-A (GB)
IPC: B60Q11/00
Filed: 1925-08-04
Abstract: 238,228. Luma-Werke Akt.-Ges. Aug. 6, 1924, [Convention date]. Drawings to Specification. Supplying and controlling consuming devices. -The rear lamp on a motor vehicle is supplied from a point on the oar wiring located between the battery and a pilot lamp which indicates by its illuminations that the battery is not being charged. The two lamps are served by a single fuse. An unlit pilot lamp thus indicates an unlit rear lamp when the car is not running.