baber/WOPTO huggingface dataset:
Patent GB-425100-A (GB)
Title: Improvements in and connected with coal cutting machines
IPC: E21C31/10
Filed: 1933-07-28
Abstract: 425,100. Hydraulic transmission of power. JEFFREY, R. K., 8, Sessions Village, Bexley, Ohio, U.S.A., and BRITISH JEFFREYDIAMOND, Ltd., Stennard Works, Wakefield, Yorkshire. July 28, 1933, No. 1651/35. Divided out of 427,881. [Class 69 (ii)] [See also Group XXI] Oppositely acting motors 60, controlling the turntable of a mining machine through racks or chains, are supplied by a reversible, variable discharge pump 444 with flow controlled by check valves 453, 454, 455 and 457 and provided with high and low pressure relief valves 469, 459<11>. The pump is connected through supply pipe S and exhaust pipes E, E<1>, to a valve 502, normally held in central closed position by a spring, and connected through pipes 503, 504 to a rotary valve 494. This valve has branched ports 505, 506, dividing the supply between the motors 60 and combining the exhaust therefrom, and may be turned so that diametrical ports 534, 535, 536, connect opposite pipes, the whole supply then going to one motor 60 for high speed operation. The motors may be short-circuited by valve 532.
Patent GB-665188-A (GB)
Title: Improvements in and relating to pneumatic paper-gripping devices
IPC: B65H3/08
Filed: 1948-11-22
Abstract: 665,188. Feeding sheets. WILLIAMS, A. H., and TAYLOR, E. F. Nov. 22, 1948, No. 17026/50. Divided out of 665,101. Class 100 (i). Pneumatic sheet-separators.-A member 1, shown as a tube, connected to a suction pump, has spaced transverse branch tubes 2 which connect divergent shallow grooves 3, in the lower face of an elongated plate member 4 forming the sheet gripper, with the source of suction. This arrangement is mounted over a pile of sheets with the face of the plate inclined to the top sheet, and preferably the face extends the full width of the sheet. It is mounted on a member slidable vertically on a second member which is slidable horizontally, and is especially adapted to separate a sheet and present it to a pasting or feed roller with the edge of the sheet in a straight condition.
Patent GB-1365421-A (GB)
Title: Macrocyclic compounds
IPC: C07F7/18
Filed: 1972-01-13
Abstract: 1365421 Macrocyclic compounds E I DU PONT DE NEMOURS & CO 13 Jan 1972 [14 Jan 1971] 1730/72 Headings C2C and C2J [Also in Division C3] Novel macrocyclic polyether compounds of the formula wherein T is C 2 -C 3  alkylene; A is R-C-H, R being H C 1 -C 18  alkyl, C 5 -C 6  cycloalkyl, cyclohexylmethyl, C 6 -C 14  aryl, benzyl or furyl, R<SP>2</SP> and R<SP>3</SP> being independently C 1 -C 18  alkyl, C 2 -C 4  alkenyl, or C 6 -C 14  aryl optionally substituted by halogen; benzyl or cycloalkenyl, or R<SP>2</SP> and R<SP>3</SP> are joined to form a C 4  or C 5  alkylene group; Q and Z are independently 1,2-arylene, saturated derivatives of 1,2-arylene, substituted 1,2-arylene or saturated derivatives of substituted 1,2- arylene; a is 0, 1, 2, or 3; b is an integer from 3 to 20; y is 1 or zero; and x 1 , x 2 , x 3  and x 4  are integers independently selected to give a 15- 60 atom ring are prepared in general by reacting dihydroxy compounds with aldehydes, ketones, ACl 2  or homologues such as (ClCH 2 CH 2 O) 2  A. The products form complexes with ionic metal compounds. The intermediate of formula is prepared from catechol and bis(beta-chloroethyl)ether; that of formula and analogues by acid hydrolysis of the corresponding compounds of the invention in which A is CH 2 .
Patent GB-344600-A (GB)
Title: Improvements in spoons for use when boiling eggs or other purposes
IPC: A47G21/02
Filed: 1930-01-18
Abstract: 344,600. Spoons. EDWARDS, A. H., 15, Benyon Road, Kingsland, London. Jan. 18, 1930, No. 1812. [Class 128.] A spoon for lifting eggs &c. out of receptacles comprises a handle A and a bowl B part of which is cut away to leave an opening C.
Patent GB-393014-A (GB)
Title: Improvements in or relating to frames for photographs, pictures and the like
IPC: A47G1/14
Filed: 1932-01-21
Abstract: 393,014. Struts for picture &c. frames. WATTS & CO., Ltd., M. and COX, A., Art Works,Moseley Village, Birmingham. Jan. 21, 1932, No. 1839. [Class 52 (v).] A frame for photographs &c. comprising two U-shaped members 2, 3, Fig. 1, formed of channel-section metal, is provided with a strut 12, the ends of the arms of which are formed with cups 8, Fig. 3, adapted to fit over half-cylindrical bushes 6 on the frame members, so as to hold the parts of the frame together. The caps are held in position by nuts 10 screwing on to threaded pins 11.
Patent GB-1124311-A (GB)
Title: Improvements in anode assemblies
Inventor: RICHARDSON CLIFFORD
IPC: C23F13/02
Filed: 1965-01-15
Abstract: An anode assembly for impressed current protection of e.g. a ship's hull comprises an <PICT:1124311/C6-C7/1> elongate anode of Ti, Zn, a Ti coated Cu core supported on a steel backing-plate and insulated therefrom by a layer of a resin such as an epoxy resin or laminations of fibre glass and polyester resin.  The outer face of the Ti anode is platinized. The anode 1 is embedded in the resin 2 on backing-plate 3 which is bolted and welded on a mounting-plate 5 which is coated with an epoxy coal tar resin 11 except on the peripheral zone 12 (Fig. 1).  The assembly is mounted on the ship's hull by welding after positioning the assembly on the hull by means of studs 7.  The current is supplied by cable 9 and a connector which are embedded in the resin 2.  In a further embodiment the backing-plate is formed with a pair of longitudinally extending wings defining a space in which the resin is placed.
Patent GB-1074941-A (GB)
Title: Improvements relating to function generators
Inventor: PERCIVAL WILLIAM SPENCER
IPC: G06G7/16
Filed: 1963-01-16
Abstract: 1,074,941. Electric analogue calculating. ELECTRIC & MUSICAL INDUSTRIES Ltd. Jan. 15, 1964 [Jan. 16, 1963], No. 1926/63. Heading G4G. In a function generator comprising two diodes, a first signal is applied to the diodes in push-pull, and a second signal is applied to. them in push-push. The basic circuits employ zener diodes having exponential current voltage characteristics, and for the current parameters v, z and voltage parameters u, w of the diodes, various functions may be obtained by choosing different parameters as the two inputs and the output. Two of the functions referred to are M=tanh<SP>-1</SP> v/ z  and v = z tanh u which for small values reduce to u=v/z and v=uz, i.e. division and multiplication. If a circuit, Fig. 3 (not shown), producing the   function u = tanh<SP>-1</SP> v1/z1 is followed by one, Fig. 4 (not shown), producing the function v<SP>1</SP> = z<SP>1</SP> tanh u<SP>1</SP> so that the output u from the first is equal to the input u<SP>1</SP> to the second the resulting function is Divider, Fig. 7.-Input signal derived from the outputs of a pair of valves is applied across the two zener diodes, and output is inversely proportional to the control current. Resistive balance of the diodes is adjusted by the wiper on potentiometer P1, voltage balance resistor R 0  and capacitive balance by capacitor C. Multiplier, Fig. 8.-Input signals fed from T1 to T3 are modified in dependence on the control signal applied to the diodes, resulting in multiplication. Capacitor C1 is provided to provide zero coupling at high frequencies for zero control signal. Alternatively, a bridge circuit may be employed for compensation, Fig. 6 (not shown). Diode balancing is obtained by a method similar to that employed in the divider circuit.
Patent GB-907116-A (GB)
Title: Improvements in or relating to face plates for use with cathode ray tubes
Inventor: MACNEILLE STEPHEN MANN
IPC: H01J29/89
Filed: 1961-01-17
Abstract: 907,116. Cathode-ray tubes. AMERICAN OPTICAL CO. Jan. 17, 1961, No. 1940/61. Class 39 (1). A face-plate for a cathode-ray tube 10 comprises a plurality of slender, light - conducting fibres 12 bundled and secured together in sideby - side, air - tight relationship by a transparent material 11 having a lower index of refraction than the fibres, and secured thereto a cellular structure 13 having opaque walls and containing luminescent material 14. As shown in Fig. 2, flint glass fibres 12 of hexagonal, octagonal or other crosssection are coated with crown glass 11 by inserting the fibres into tubes of crown glass and heating and drawing to a desired size. After fusing the coated fibres together, the end surfaces thereof are ground and polished. The cellular structure 13 may be formed by fusing together glass tubes and drawing the assembly to reduce the crosssectional size of the tubes, which are then provided with opaque and reflective coatings by gas-plating evaporation or chemical-silvering. Alternatively, copper wires may be goldplated, secured together, rolled to a reduced size and the copper removed by etching. The cellular structure 13 is fused or cemented to the fibre assembly either before or after filling the cells with a mixture of phosphor powder and water glass in liquid or paste form or by vapour deposition of the phosphor. The cells 14 may be of larger or smaller cross-section than the fibres 12, or may be of equal size and aligned therewith. Since the face-plate prevents light from being scattered from one cell to another, the thickness of the phosphor layer, and hence the electron beam voltage, may be increased over conventional tubes to obtain increased brightness. In Fig. 5, flint glass fibres 19 are coated with aluminium metaphosphate glass 22 and fused together, after which portions of the fibres are removed by etching to provide cells for the phosphor 23. The inner walls of these cells are provided with opaque and reflective coatings 24 or alternatively the coated fibres 19 may be provided with an opaque, metal coating before they are sealed together.
Patent GB-739824-A (GB)
Title: Improvements in or relating to rotary vacuum pumps
Inventor: BOWERING HENRY GORDON
IPC: F04C29/02
Filed: 1954-01-22
Abstract: 739,824. Rotary pumps. NEW YORK AIR BRAKE CO. Jan. 22, 1954, No. 1999/54. Class 110 (2). A rotary two-stage vacuum pump has a modified interstage cast centre partition and an interstage shaft seal to reduce interstage leakage. The centre partition 16 which is between the two working spaces of the pump, has two chambers 28, 29, formed in the operation of casting the partition, which have retained their casting skins. Between the two chambers is a central hub 32 with a bushing 42 sealed in its bore, which is coaxial with the two working spaces. The chamber 28 forms a reservoir for oil for the first stage pump. In the form described the casing of pump is formed of the centre partition 16, first stage casing 24, second stage casing 27, and end plates 18, 19, all of which retain their casting skins on at least one surface. The shaft 34 is mounted in bushings 42, 91 and carries two identical pumping means consisting of an eccentric 53 keyed to the shaft 34 and turning inside a sleeve 54 which has a hollow plate-like projection 55. The first stage casing 24 has a suction chamber 47, guide blocks 56 for the projections 55 and a discharge port 52. Chamber 28 has two ports 35, 36 (Fig. 12, not shown) which are connected to the discharge port 52 and to the second-stage suction chamber 61 respectively and a drain plug 38. Oil from chamber 28 passes through the passage 37 to the groove 43 in the bushing 42 and through the passage 44 to the shaft 34. Some oil passes through the passage 45 to the groove 59 in the eccentric 53 where it passes outwards into the groove formed between the bevel 58 of eccentric 53 and the partition 16 so forming a seal between the sleeve 54 and the partition 16 while some oil passes between the eccentric 53 and the sleeve 54 to the end plate 18. The plug 39 carries an interchangeable rod 40 to control the flow through the passage 37. The outlet of the second stage pump in casing 21 is controlled by a lightly loaded valve 69 which opens into the chamber 64 which forms a reservoir for oil for the second-stage pump. Chamber 64 has a window 65 and an oil trap 78 connected to the discharge port 77. Oil passes from the chamber 64 by the passage 102 and through passages 103, 104 in the end plate 19, where rod 107 controls the flow, to the groove 108 round the bushing 91 when some passes outside bushing 91 through groove 111 and some passes inside bushing 91 through passage 109 and groove 110 (Fig. 10, not shown) to lubricate the eccentric 72 similarly to eccentric 53. The hub 90 of the end plate 19 is counterbored to receive a sealing ring 93 and a shaft-sealing arrangement 99.
Patent GB-450845-A (GB)
Title: Improvements relating to the production of long lengths of rubber or the like material
Filed: 1935-01-22
Abstract: 450,845. Moulding rubber &c. in long lengths. INTERNATIONAL LATEX PROCESSES, Ltd., 10, Lefebvre Street, St. Peter Port, Guernsey. Jan. 22, 1935, No. 2055. Convention date, Feb. 24, 1934. [Classes 70 and 87 (ii)] Long lengths of rubber &c. are produced by moulding and solidifying successive quantities of an aqueous rubber dispersion in relatively short moulds progressively arranged in juxtaposition, an unconfined end of an already moulded section forming a confining wall for a succeeding quantity of dispersion. Rubber carpets having the cross-section shown in Fig. 2b are produced by placing a mould 2 adjacent to a mould 5 containing rubber already set. The mould 2 is filled with the rubber dispersion and closed by a cover. During the setting of the dispersion in the mould 2, the mould 5 may be subjected to a vulcanizing operation. The side wall 3 of the mould 2 is then removed and the mould 5 is placed at the free end of the carpet to form another length. The carpet may be dried and rolled on a drum 7. When using very viscous dispersions, the wall 3 of the mould may be omitted so that a bevelled end is produced on the rubber. The moulds may move slowly or intermittently during moulding. In a modification, open moulds may be led under a length of endless metal belting which forms the cover for the moulds during setting. The moulds may be provided with patterns, cores, &c. and may have longitudinal separator walls. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 450,920. This subject-matter does not appear in the Specification as accepted.
Patent GB-957635-A (GB)
Title: A process for the production of n-heterocyclic n-amino compounds
IPC: C07D295/30
Filed: 1962-01-19
Abstract: N-heterocyclic-N-amino compounds are prepared by reducing the corresponding N-nitroso compound with sodium amalgam in the presence of a proton donor.  Water, aqueous caustic soda solution, alcohols (1-4C) and sodium alcoholate solutions may be used as proton donors and may be solvents for the nitroso compound. Examples describe the preparation of N-amino morpholine, N-amino piperazine, N-amino thiomorpholine and N-(b -hydroxyethyl) N1-amino piperazine.
Patent GB-396044-A (GB)
Title: A machine for making cream like compositions from butter or substitute by addition of milk
IPC: A01J13/00
Filed: 1932-01-25
Abstract: <PICT:0396044/III/1> <PICT:0396044/III/2> Homogenizing-apparatus, especially suitable for making cream-like compositions from milk and butter or butter substitutes, comprises a tubular ram k, Fig. 1, carrying at its upper end a container l for the materials to be homogenized and screwed at j into a frame a provided with clamping means b, c, for securing the apparatus to a support such as a table. The ram k operates in conjunction with a cylinder o embracing the ram and reciprocated by an eccentric h engaging wings o<1> on the cylinder and mounted on a spindle e rotatable by a crank-handle f.  A ball valve n, Fig. 2, is provided in the lower end of the ram k and the lower end of the cylinder o contains a plug p having an aperture p<2> preferably obturated by a pin q<1>.  The materials drawn into the cylinder are forced past the pin q<1>, through holes q<3> in a plug q carrying the pin and thence through a passage q<2> and past a ball valve r provided in the plug q.  More than one orifice such as p<2> may be provided.  A vessel t, Fig. 1, supported on a plate a<1> forming part of the frame a receives the homogenized product.
Patent GB-845712-A (GB)
Title: Improvements in or relating to the detection of ferrous particles in non-ferrous electric conductors
Inventor: GRANEAU PETER
IPC: G01V3/10
Filed: 1957-01-22
Abstract: 845,712. Recording-apparatus. BRITISH INSULATED CALLENDER'S CABLES Ltd. April 22, 1958 [Jan. 22, 1957], No. 2245/57. Class 106 (4). [Also in Group XXXVI] Apparatus for recording the distribution of ferrous particles along the length of a non- ferrous electric conductor comprises a thyratron, to the grid of which is supplied the output of ferrous particle detection apparatus (see Group XXXVI), said output consisting of unidirectional pulses which render the thyratron conductive, thus energizing a relay in its anode circuit to operate an electromagnetic plunger device 27, member 28 of which advances axially to punch a hole in the periphery of a circular record card 30 which is continuously rotated by a synchronous motor 31.
Patent GB-524320-A (GB)
Title: Photographic elements having short-wave light absorbing filters
IPC: G03C1/815
Filed: 1939-01-23
Abstract: 524,320. Ultra-violet absorbing filters. KODAK, Ltd. (Eastman Kodak Co.). Jan. 23, 1939, No. 2266. [Classes 97 (i) and 98 (ii)] An ultra-violet absorbing filter comprises a transparent carrier, for example gelatin, agaragar, cellulose esters or ethers, or synthetic resins, including alkali-soluble colloids, containing a cyanine dye. which may be substantially colourless, absorbing light in the region 350 to 400ÁÁ or in the region 400 to 450 ÁÁ or in both. The filter may be used as a lens filter. Photographic material having one or more light sensitive emulsions on a support has a layer containing such a cyanine dye, which may be an oxacyanine, a benzoxacyanine, a dibenzoxacyanine, a thiazolocyanine, or a cyanine such as 1-(#-1<SP>1</SP>-piperidylvinyl)-benzthiazole, 1-( #-4<SP>1</SP>-morpholylvinyl)-benzthiazole, 1- (#-diethylaminovinyl)-benzthiazole, or 1-(#- anilidovinyl)-benzoxazole. In multilayer colour photographic material, the cyanine dye may be incorporated in the emulsion layer, in an intermediate or backing layer, or in the support. Specifications 419,361, 504,821, 515,145 and 524,378 are referred to. According to the Provisional Specification, the cyanine dye may be incorporated in the support of a lenticular film.
Patent GB-244605-A (GB)
Title: Improvements relating to vices, pliers and similar gripping tools
IPC: B25B1/24
Filed: 1925-01-26
Abstract: 244,605. Robinson, A. S. F. Jan. 26, 1925. Vices; pliers.-A self-adjusting rocking-jaw 3 is pivoted to a stirrup 7 secured to the jaw of a vice or pliers &c. by a screw and is also hinged to a plate 1 held on the vice by projections 10 and limited in movement by projections 9 abutting against stops 6.
Patent GB-827441-A (GB)
Title: A method of preparing ribosides of nucleic acid bases
Filed: 1958-01-23
Abstract: Ribosides of nucleic acid bases, particularly 6-aza-uracil, are prepared by exposing a base of a nucleic acid to a fermentating saccharide-containing culture of Escherichia coli, and isolating the product from the clear medium by adsorption on an adsorptive material, e.g. charcoal.
Patent GB-1128272-A (GB)
Title: Radio receiver
IPC: H03D1/22
Filed: 1967-01-17
Abstract: 1,128,272. Stereophonic radio receivers. MOTOROLA Inc. 17 Jan., 1967 [11 March, 1966], No. 2465/67. Heading H4L. In a stereophonic radio receiver including a frequency-doubler network responsive to a pilot tone to reconstitute a suppressed carrier wave, a normally closed voltage operated switching circuit is connected in shunt with a portion of the said network to prevent its operation by noise signals, and a second circuit is responsive to the received carrier wave to develop a voltage for opening the voltage controlled switching circuit so that the pilot tone is applied to said network to provide the suppressed carrier wave. As shown, the received signal is supplied to a ratio detector 14 and the resulting composite stereo signal is supplied to the base of a transistor 33. The pilot signal is selected by tuned circuit 35, negative half-cycles being clipped by diode 63, and supplied to the frequencydoubler comprising transistor 39, provided with a threshold bias by resistor 42, and tuned circuit 40. The diode 62 is biased off by the voltage developed across capacitor 24 due to the input signal. The subcarrier signal is supplied via transformer 40 as a switching signal to a conventional stereo demodulator comprising diodes 70, 71, 80, 81, the stereo signal being supplied from the emitter of transistor 33 to the centretap of winding 43. Diodes 70, 81 are supplied with a small amount of forward bias via resistor 82 for the reception of monophonic signals. When no signal is being received, e.g. when tuning between stations, the voltage across capacitor 24 reduces and diode 62 conducts so that noise centred around the pilot signal frequency will not operate the frequency-doubler.
Patent GB-826892-A (GB)
Title: Improvements in or relating to change-speed gear hubs for cycles and motor cycles
IPC: B62M11/14
Filed: 1958-01-24
Abstract: 826,892. Variable-speed gearing; toothed gearing. FICHTEL & SACHS A.G. Jan. 24, 1958 [Jan. 25, 1957], No. 2469/58. Classes 80 (1) and 80 (2). A change-speed gear hub for bicycles and motor cycles comprises planetary gearing having a planet carrier, a plurality of planet wheels mounted on the planet carrier being unequally spaced around it. Changes in the overall ratios of the gearing by substituting planet pinions &c. having different numbers of teeth are thereby facilitated, the unequal spacing of the planet pinions in the carrier permitting smaller incremental changes in the numbers of teeth, while still maintaining correct assembly of the gearing elements, than if the planet pinions were in normal equispaced positions. In the form shown, the gearing comprises an internally toothed ring gear 36, a fixed sungear 25 and two pairs of planet pinions 26, 28; 27, 29. The diametral line 38 passing through the planet pinions 27, 29 is offset from the perpendicular 39 to the diametral line passing through the planet pinions 26, 28 by an angle #. In the position shown, a driving sprocket 15 fast with prongs 41 drives a twoarm axially slidable selector 40 engaging pins 30 supporting the planet pinions, a step-up drive thereby being transmitted to the ring gear 36 and thence through a ratchet clutch 53 to an enclosing hub 11. By operation of a control cable 43, the selector 40 can be slidden rightwards of Fig. 1 against the bias of a spring 47 out of engagement with the pins 30 and into engagement with teeth 50 on the ring gear 36, to give a direct drive to the hub 11.
Patent GB-571840-A (GB)
Title: Frequency modulation system
IPC: H03C3/24
Filed: 1944-02-11
Abstract: 571,840. Frequency modulation. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). Feb. 11, 1944, No. 2543. [Class 40 (v)] An oscillation generator comprising a valve 1, Fig. 2, back-coupled through an artificial line 2 ... 4, 16 ... 18 is frequency-modulated by signal voltages applied to one or more variable impedance valves 12 ... 14 connected in shunt with the shunt resistances of the artificial line. In Fig. 2 the signal voltage is applied to the grids of the triode valves 12 ... 14. In'a modilied arrangement, Fig. 3, the signal voltages are applied through a transformer 25 to the anode circuits of the shunting valves 22 ... 24, the valves being of the pentode type whose anode impedance is proportional to anode voltage. The mean frequency of oscillation is determined by the grid voltage of the valves 22 ... 24, and this is provided by a full-wave rectifier 28, 29 which is fed from the output circuit 26, 27 of the oscillator and has its load resistance 32 connected through a low-pass filter 30, 31 to the valve grids.