baber/WOPTO huggingface dataset:
Patent GB-1446811-A (GB)
Title: Zoom lens
IPC: G02B15/14
Filed: 1974-01-03
Abstract: 1446811 Zoom lenses K VOCKENHUBER and R HAUSER 3 Jan 1974 [3 Jan 1973] 00239/74 Heading G2J A zoom lens e.g. for projection comprises a positive front part I rigidly attached to a positive rear part III and an axially movable negative part II between them. The front part I comprises a simple biconcave lens spaced from a pair of simple biconvex lenses by a distance which is substantially half the axial length of the positive front part I. The part II is a single negative lens and the part III consists of a plurality of positive elements and an interposed negative element.
Patent GB-682401-A (GB)
Title: Improvements relating to reels for hose and the like
IPC: H02G11/02
Filed: 1950-01-06
Abstract: 682,401. Hose and electric cable reels. RUSHWORTH, D. April 5, 1951 [Jan. 6, 1950], No. 362/50. Class 99 (ii) [Also in Group XXX] The inner end of a hose D, or electric cable, accommodated on a drum A passes into the interior of the drum and is connected to a supply point by a number of hoses F, F', F<SP>2</SP>, or cables, preferably of smaller diameter. The hoses may be wound on reels E, E', E<SP>2</SP>, secured to a hollow rotatable sleeve B carrying the drum and forming a means of communication between the hoses and the hose. When the hose is withdrawn from the drum the hoses are unwound and then rewound in the opposite direction. Spring means may rewind the hose onto the drum. In modifications (a) the hoses are longitudinally twisted together and connected to a chamber on the end of the sleeve, (b) electric cables are wound onto reels inside the drum and connected to a junction box and (c) cables longitudinally twisted together pass through a hollow drum axle to a junction box in the drum.
Patent GB-845787-A (GB)
Title: Improvements in or relating to a method of producing dial instrument needles
IPC: B29C43/00
Filed: 1958-01-03
Abstract: 845,787. Moulding dial instrument needles. FLUCKIGER A., and FLUCKIGER, P., [trading as FLUCKIGER & CIE.]. Jan. 3, 1958 [Jan. 8, 1957], No. 369/58. Class 87(2). The mould cavity is first metallised, e.g. by evaporation in vacuo, electroplating, or chemical means, and a synthetic plastic material then pressed into it so as to adhere to the metallised layer and to constitute the body of the needle, followed by removal of the mould such that the metallised layer is transferred from the mould to the needle. The mould is made from a disc 2 of plastic or metal, e.g. aluminium, in which cavities 4 are formed with a punch having in relief the shape of the needle it is desired to obtain. The pressing of the plastic in the cavity is performed in the hot state by a member 5 formed with recesses 9 coaxial with pins 6 so as to mould an aperture coaxial with a collar on the needle. A portion of the cavity may be shielded during metallisation, the shield removed, and a further metallisation then effected to produce a coating different from that of the first metallisation so that the first coating is visible at those points previously shielded.
Patent GB-782243-A (GB)
Title: Improvements relating to mounting bases for electromagnetic relays of the plug-in type
IPC: H01H50/04
Filed: 1956-01-05
Abstract: 782,243. Two-part couplings. WESTING HOUSE AIR BRAKE CO. Jan. 5, 1956 [Jan. 11, 1955], No. 393/56. Class 38 (1). A mounting base for a plug-in relay comprises an insulating block 1 having retaining blocks 3 secured in recesses in the rear face thereof, the retaining blocks having apertures 4 aligned with larger apertures 1e in block 1 which have entry slots 1g for the blade contacts 20 of the relay. Apertures 4, 1e, contain leaf-spring contacts 10 each connected to a conductor 12 and having a reversely-bent portion 10d forming a contact surface, the portion 10d being urged away from the main portion by a spring 11  located by a dimple 10f. The main portion of each contact lies between ledges 5, 1h formed on the side walls of apertures 4, 1e and the contact is retained in position by lateral lugs 10b thereon which engage behind ledges 5, after riding up these ledges during rearward insertion of the contact. A test plug 30 consisting of an insulating sheet with conductive layers on both sides may be inserted through each aperture 4 and between contacts 10, 20 to connect an ammeter in series therewith.
Patent GB-122013-A (GB)
Title: Improvements in or relating to Conveyors and the like.
Inventor: BATTY THOMAS EDWARD
IPC: B65G17/00
Filed: 1918-01-08
Abstract: 122,013. Batty, T. E. Jan. 8, 1918. Fixed-bucket conveyers. - A conveyer particularly adapted for carrying carbonaceous material through apparatus employed in the production of smokeless fuel and recovery of by-products comprises a pair of chains a connected by crossbars f to which plates g, g<1> flanged at the bottom and sides are secured. The plates on adjacent links form a receptacle - for the carbonaceous material. and the space between the plates on the same link is exposed to the heat of the furnace.
Patent GB-830149-A (GB)
Title: Improvements in or relating to mirrors
IPC: B60R1/02
Filed: 1957-01-07
Abstract: An adhesive for securing the front and rear glasses of a vehicle rear view mirror (see Group XXXII) is of the following composition by weight:-Brown ochre 33,3%; white zinc 8,1%; gum dammar 20,8%; naphtha 37% and di-N-butyl Phthalate 0,8%.
Patent GB-552278-A (GB)
Title: An improved padding for splints
IPC: A61F5/058
Filed: 1942-01-15
Abstract: 552,278. Splints. HARRIS, C. H. Jan. 15, 1942, No. 604. Drawings to Specification. [Class 81 (ii)] A pad for splints comprises a channel shaped block of sponge rubber, rubber covered. fibrous material such as felt or other resilient material which is held on to the splint by rubber bands.
Patent GB-798824-A (GB)
Title: Fluorinated polyesters
IPC: C08G63/682
Filed: 1957-01-07
Abstract: A fluorinated polyester is made by reacting (1) ortho-, iso- or tere-phthalic acid or an esterforming derivative thereof (e.g. an acid chloride or an aliphatic ester) with (2) a fluorinated glycol of formula <FORM:0798824/IV (a)/1> where n is an integer.  The products are useful as insulating varnishes or casting resins and may be thermoset by reaction with a diisocyanate.  In examples: (l) 2,2,3,3,4,4-hexafluoro-1,5-pentanediol was heated with terephthalyl chloride to produce a poyester soluable in acetone, methylene chloride or ethyl acetate.  The polyester was mixed with toluene diisocyanate and water and the mixture heated at 150 DEG  C. and 5,000 lb./sq. in.; (2) the glycol of formula HOCH2(CF2)5CH2OH was reacted with isophthalic acid or its dimethyl ester.
Patent GB-878333-A (GB)
Title: Scale of ten circuit
IPC: H03K21/00
Filed: 1960-01-07
Abstract: 878,333. Electronic counting-apparatus. VAN DER HEEM N.V. Jan. 7, 1960 [Feb. 7, 1959], No. 651/60. Class 106 (1). A decimal counter comprises four cascaded bi-stable circuits B1-B4, the second and fourth circuits being so coupled that the second B2 is blocked in its quiescent state as long as the fourth B4 is in its quiescent state, and the fourth circuit B4 being triggered from its quiescent to its active state by the output from the first circuit B1. The second input pulse at 1 restores B1 to normal, B1 producing an output which is ineffective at B2 because B4 is quiescent. However, this output pulse renders B4 active so that for subsequent input pulses the stages B1-B3 act as a normal binary cascade counter. The tenth input pulse turns all stages off and produces an output pulse at 2. Circuit details are shown in Fig. 3 (not shown) with a feedback from the collector of a transistor in stage B4 through a resistor 3 maintaining a transistor of stage B2 conducting as long as the transistor in stage B4 is non-conducting.
Patent GB-574611-A (GB)
Title: Improvements in or relating to directional microphones
IPC: H04R1/38
Filed: 1944-01-13
Abstract: 574,611. Directional microphones. WESTERN ELECTRIC CO., Inc. Jan. 13, 1944, No. 681. Convention date, Jan. 16, 1943. [Class 13] [Also in Group XXXIX] In a microphone in which a diaphragm responds to the sound waves to be converted, a directional effect is produced by exposing the diaphragm on both sides, access to one side being direct and to the other through a plurality of silk-covered apertures 20 in the casing at different distances from the diaphragm. After passing through the apertures 20, the sound waves pass into a chamber in the rear of the casing and through further silk-covered apertures 27 in a centring ring 26, Fig. 3, for the inner pole of the magnet system. One of the apertures 27 is not silk-covered, there being a tube 35 having a large acoustic mass and small resistance extending from this aperture into the aforesaid chamber to enhance the lowfrequency response. The mass and resistance. of the apertures 20 are largely effective as regards the directional effect and are matched at the middle of the band over which the apertures are effective. The electrical analogue for the sound path from the rear of the diaphragm is described with reference to Fig. 4 (not shown).
Patent GB-159724-A (GB)
Title: Improvements in revolving cowls for chimney tops and the like
IPC: F23L17/10
Filed: 1920-01-09
Abstract: 159,724. Honess, H., and Honess, H. Jan. 9, 1920. Covers or caps.-In a revolving chimney cowl of the type which is mounted on a sleeve rotating on upper and lower ball bearings about a fixed spindle, separate grease caps are provided for each bearing. The cowl 6 is riveted to the tube 5 which rotates on adjustable ball bearings 8 about the spindle 3 which is fixed to a bracket arm 1 attached to the chimney base 2. Separate grease caps 10, 11, are provided, the former being held between the bracket arm 1 and the lower cone 9, and the latter totally enclosing the upper bearing.
Patent GB-632193-A (GB)
Title: Improvements relating to the catalytic cracking of petroleum hydrocarbons
IPC: C10G11/04
Filed: 1947-01-10
Abstract: Gas oil or a higher-boiling petroleum feedstock is passed with hydrogen over a sulphurresistant hydrogenation catalyst at elevated temperature and pressure in order to convert the sulphur contained in the oil into hydrogen sulphide, which is then separated, the desulphurized oil is cracked in the presence of a montmorillonite clay which has been heated to <PICT:0632193/III/1> remove at least some of the combined hydroxyl groups therefrom, a gas rich in hydrogen is separated from the cracked products and this gas is passed to the desulphurization zone and constitutes the sole source of hydrogen required for the process.  An Iranian crude oil distillate (20 per cent by volume of which distils below 770 DEG F.), containing 1.5 per cent sulphur, was passed, together with compressed gas containing 67.1 mol. per cent of hydrogen from holder A, through heat exchanger B and preheater C into reactor D, which contained a catalyst comprising cobalt molybdate deposited on activated alumina maintained at 750 DEG  F. under a gauge pressure of 1000 lbs. per square inch.  The products from reactor D were passed to separator E, maintained at approximately 38 lbs. per square inch pressure and 550 DEG  F., where a separation into liquid and gas occurred.  The liquid was free from dissolved H2S and contained 0.12 per cent of combined sulphur.  This liquid was passed through heat exchanger P, vaporized in vaporizer H and cracked in reactor G, using a treated montmorillonite clay (of the kind described in Specification 632,192), at 850 DEG  F.  The cracked products were cooled in heat exchanger P and in cooler J, and were then passed to separator K maintained at 60 DEG  F.  The liquid product was separated by distillation into gasoline, gas oil, and residue.  The gaseous product was scrubbed in scrubber L for the recovery of butanes and pentanes, and then passed to holder A. The gas from separator E, which comprised unused hydrogen, H2S and light hydrocarbons, was cooled in cooler M, passed to a further separator N, where some hydrocarbons were removed, and then passed to scrubber O where H2S and further hydrocarbons were removed.  The scrubbed gas was recirculated to holder A.
Patent GB-988874-A (GB)
Title: Heating and cooling system
IPC: B60H1/32
Filed: 1962-01-09
Abstract: 988,874. Refrigerating; defrosting. M. W. BRAINARD. Jan. 9, 1962, No. 845/62. Heading F4H. A compression refrigerating system comprises a plurality of evaporators, one of which is associated with a heating coil, and valve means operable to bypass the condenser and supply hot refrigerant vapour to the heating coil. As shown, the system comprises two evaporators 30, 35 located respectively in the freezing and cooling compartments of a refrigerated truck (Fig. 1, not shown). A unit A comprising a compressor 20, condenser 21 and liquid receiver 22 is mounted externally of the truck and refrigerant is supplied from the receiver 22 through liquid lines 27, 28 to the evaporators 30, 35 respectively, the evaporators being connected to the compressor by suction lines 23 and 24. A heating coil 40 associated with the evaporator 35 is connected to the compressor discharge line by a line 41 containing a normally closed valve 43 and to the receiver 22 by a line 42 containing a one-way valve 46. When the temperature of the cooling compartment becomes too low a thermostatic switch 48 adjacent the evaporator 35 closes valves 45 and 44 positioned respectively between the condenser and receiver and in the liquid line 28, and opens valve 43, thus supplying hot refrigerant vapour to the heating coil 40 which then functions as the system condenser. This serves to raise the cooling compartment temperature and to defrost the evaporator 35. A by-pass line containing a pressure relief valve 47 is provided for the valve 45. When the evaporator 30 requires defrosting a switch 54 is operated to open a valve 51 in a line 50 connecting the compressor discharge line to the inlet of evaporator 30, and to close a valve 52 in the liquid line 27. Means 55 are provided to prevent valves 43 and 51 from being operated at the same time.
Patent GB-1115650-A (GB)
Title: Shock-sintering of diamond
IPC: B01J3/06
Filed: 1965-05-19
Abstract: <PICT:1115650/C1/1> <PICT:1115650/C1/2> <PICT:1115650/C1/3> Small diamond particles, preferably no greate than 150 microns in size and formed into a mass having a bulk density of at least 40% of the crystalline density of diamond, are shock sintered into larger agglomerates by subjecting the mass to a shock wave generated by explosive means.  Impurities such as carbides, borides, nitrides, oxides and mixed amounts of metals or graphite may be present in amounts preferably less than 10% by weight.  At a powder density of 40% that of the crystalline density of diamond a shock pressure of at least 600 kilobars is preferred and the projectile plate, the use of which is preferred, thus requires plate velocities of at least 2.5 km/second with certain relatively high-shock-impedance (at least 106 dyne/second/c.c.) plate materials such as aluminium or an alloy thereof and preferably steel, copper, nickel, titanium, zinc and their alloys.  A shock duration of at least 0.1 microsecond is desirable and longer durations are preferred particularly when low shock pressures are employed.  If a container for the powder is used the thickness of the cover between the impact surface and the powder is desirably no more than twice the thickness of the projectile plate and the cover's shock impedance is preferably at least the same as that of the projectile plate but may be lower if sufficiently thin. The cover is preferably fixed in place e.g. by welding.  Fig. 5c illustrates one of the several described modifications of the apparatus used in which sample 3, overlaid with a cover 6 of uniform thickness, is fitted in container 7 which fits snugly in cavity 2 in block 1 which comprises external surrounding element 1A and supporting member 8.  Further reinforcement around container 7 is provided by ring 9.  Fig. 6 illustrates also a plane wave-generator, 10, initiated by blasting cap 11 and fixed to the upper flat surface of a cylindrical layer of detonating explosives 5, the lower flat surface of which rests on plate 4 which is substantially parallel to the upper surface of block 1, the impact area of the plate 4 preferably overlapping the sample. A metal confining means 13 surrounds explosive layer 5.  At least the peripheral portion, the width of which should preferably be at least half the distance from the periphery of the impact area to the outside wall, and preferably all of block 1 including the base comprises one or more of the following: lead, copper, uranium and thorium. Members 6, 7, 8 and 9 should conveniently comprise steel, iron, titanium, niobium, nickel, aluminium, copper or their alloys.  Exact fit of the members in the integral unit is not necessary but spaces between members should be filled with material such as grease.  The shock sintered product of the process is a polycrystalline diamond having a density at least 80% that of diamond and producing an X-ray diffraction pattern as illustrated in Fig. 9 wherein the diffraction lines for diamond have a line broadening coefficient, K1, of from 4.5 x 10-2 to 7.5 x 10-4.
Patent GB-575938-A (GB)
Title: Improvements in toilet-roll holders
IPC: A47K10/40
Filed: 1944-01-18
Abstract: 575,938. Toilet-roll holders. ATHERTON, T. J. Jan. 18, 1944, No. 917. [Class 18] A toilet-roll holder comprises a wall plate 3, Fig. 1, carrying arms 1, 2 apertured at 6, 7 as shown so that knob 9, Fig. 2, can pass through aperture 6 while rod 16 can pass through the slot in the periphery of aperture 7. Rod 16 is resiliently and telescopically mounted within a tubular sleeve 12 to which one knob 9 is rigidly fixed by a rod 10, and sleeve 12 is surrounded by a split sleeve 19 dimensioned so that it cannot move over knob 9, the toilet roll being carried on this sleeve.
Patent GB-112664-A (GB)
Title: Improvements in or connected with Electric Couplings and Cases therefor.
Inventor: AUSTIN NATHAN JOHN
IPC: H02G15/10
Filed: 1917-01-18
Abstract: 112,664. Austin, N. J., and Taylor, G. E. Jan. 18, 1917. Plug couplings combined with electric switches. A series of plug sockets b is mounted in a case or box a fitted with a sliding plate o which is operativelv connected with a switch m in such a manner that the insertion or removal of any of the plugs c is prevented except when the switch is open and the current cut off. Sparking in the switch is prevented by oil or other insulating liquid. The box is made of aluminium or other light material so that it is easily portable, and it may be mounted on wheels, rollers, &c. or on a wheeled carriage so that it can he readily moved about upon a floor &c. The bottom of each socket is formed by a spring-controlled disk or shutter j which is capable of slight rotation upon a supporting-ring g; in inserting the plug, the pins i are first engaged with the holes of the disk and the plug and disk are then turned together till the pins are over the apertures in feed-bars j. The plate o has key-hole openings p, p<1> for engaging with the bodies of the plugs; these openings allow of the insertion and withdrawal of the plugs through the large part p when the switch is open, but prevent the withdrawal or inserton of the plugs by virtue of the narrow portion p<1> when the switch is closed. The switch shaft is turned by a detachable key and carries arms t which engage with a roller u on the underside of the plate o and with a locking-catch v. Springs b<1> may be fitted in the sockets to bear against the plugs. According to the Provisional Specification (1) an apertured insulating slab is fixed against the inner ends of the sockets. and (2) the plate o may be moved to the off position by a spring when the switch is opened.
Patent GB-488712-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B1/04
Filed: 1937-01-12
Abstract: 488,712. Sewing ; sewing machines. STEVENS, A. H. (Naftali Slip Stitching Process, Inc.) Jan. 12, 1937, No. 943. [Class 112] A method of making neckties or similar articles comprises imposing two pieces of fabric, such as the tie and lining, one upon the other, in definite relation to a predetermined line of stitching, stitching the two pieces together along the line by running stitches so that the stitches are produced at the outer surface of one of the pieces and close to the outer surface of the other piece. A machine for stitching such neckties is described also, employing a double-pointed needle alternately passed through the fabrics from opposite sides by needle grippers. The lining 221 is placed in the recess 219 of the work-holder 217 so that it extends between the plate 227, shaft 225, and over the bar 223. The securing plate 227 is then lowered from the position of Fig. 19 to the position of Fig. 22, the lip 231 holding the lining edge so that a free part lies over the bar 223. The tie proper 233 is then placed in the lining, with optional insertion of the usual intermediate tape, Fig. 22. A series of retaining members 237 hold the parts of fabric together. The comb 250 is then swung over on to the tie and is locked by manually operated catches 251. The tie, lining and their carrying plate 217 are then moved as a unit with the tie and lining correctly positioned, to the sewing point. The tie and lining are secured either by handapplied or by machine-made running stitches, the length of such stitches being regulated by the teeth of the member 250 as the thread passes over alternate teeth. The line of stitching is also determined by the position of the comb 250. Alternatively the loose stitches may be applied by a double-pointed needle sewing-machine such as described in U.S.A. Specification 1,931,447. In such a machine, the double-pointed needle 52 is alternately grasped by chuck jaws 90, 90<1> of upper and lower needle bars 50, 51 operated by sun-andplanet gearing from the motor M. The thread end is held by nippers 67, 68 and the tie and lining holder 217 is placed on the work table of the machine. The machine is provided with a threader 66, Fig. 3, operated by the lever 67. Loose thread entanglement, where loose threads are pulled through the work after completion of a tie, is prevented by grooves 129 on the drum 121, the threads being kept in the grooves by brushes.
Patent GB-656939-A (GB)
Title: Improvements in or relating to electrical signalling systems
Inventor: MILNE JOHN CHARLES
IPC: H02J13/00
Filed: 1949-01-13
Abstract: 656,939. Signalling over power circuits. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., ELECTRIC CONSTRUCTION CO., Ltd., and MILNE, J. C. Jan. 13, 1949, No. 950. [Class 40 (iv)] In an arrangement for superimposing highfrequency signalling currents on an electric supply network, the high-frequency generator AFG is connected to the network through a circuit including a pair of oppositely-poled, grid-controlled mercury arc rectifiers, each having a pair of auxiliary anodes AA1, AA2 to maintain ionization when the potential of the main electrode falls below the extinction value of the rectifier. The mercury arc rectifier, Fig. 1, is of the tip start type and after firing by solenoid DIS, ionization is maintained by auxiliary anodes AA1, AA2 and the circuit of DIS is broken by relay A. The grid is normally negatively biassed by rectifier network MRA, but when contact IC of transformer TB is closed, the grid is positively biassed by the difference in outputs between MRB and MRA. In the system shown in Fig. 2, two pairs of such rectifiers, oppositely poled, are shunted across the output of the high-frequency generator AFG before the transformer TLI so that the signal output to line is short-circuited when the grids are made positive by the closing of control contacts IC. A system including oppositelypoled rectifiers in series with the H.F. generator output is described with reference to Fig. 3 (not shown). Specification 563,218 is referred to.