baber/WOPTO huggingface dataset:
Patent GB-1020553-A (GB)
IPC: E03D5/08
Abstract: 1,020,553. Foot-operated flushing devices for cisterns. A. P. BOOTH. June 1, 1964 [May 31, 1963], No. 21817/63. Addition to 912,047. Heading E1C. An improvement in or modification of the foot-actuated control assembly for a watercloset flushing mechanism according to the parent Specification comprises a housing 2 (Fig. 1) for the pedal 1, forming an enclosure for the pedal arm 3 thereof, in which are openings through which the foot support 8 and linear draw means 4 respectively project. The housing 2 may comprise a removable top cover 10 with the openings therein. The body 9 thereof is rectangular in plan with two parallel vertical side walls bridged by a plate 10 and a web-forming back wall. In one form (Fig. 1) the carrier plate for the pedal is the plate 10, the arm 3 is hinged at one end thereto and has lugs 19 which turn in recesses 18 in the lower ends of the upper inclined edges of the side walls. In another form (Fig. 3) the housing 2 has a base having a transverse groove 21 and the arm 3 has projections 22 located to turn therein. In a third form (Fig. 5) the carrier plate 23 is separate from the housing 2 and is secured therein by a spindle 24, rotatably mounted in one or both of the side walls, a cranked portion 25 thereof or a cam, on turning of the spindle 24, urging the plate 23 against a base on the housing 2 or against a surface to which the housing 2 is secured, to lock the plate 23. In the opening 14 (Fig. 1) is a swivellable fitting 16 to guide the emergent part of the means 4 An opening 14 in a part 13 of the housing 2 has a part-spherical seat in register with the opening in the cover 10, a portion of the fitting 16 being shaped to suit the seat, a vertical spigot 17 being above this opening, and with the other portion having an internal bore through which the draw-means 4 passes. The arm 3 comprises a hollow block 5 for the foot and a part 6 attached to the draw means 4. The housing 2 may incorporate an aerosol container for a deodorant or disinfectant or other vaporisable substance with a valve actuated by the arm 3 which when depressed, causes some of the contents to be dispelled.
Patent GB-1051995-A (GB)
IPC: H03K3/51
Abstract: 1,051,995. Circuits employing bi-stable magrietic elements. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Jan. 27, 1965 [Jan. 30, 1964], No. 3580/65. Heading H3B. [Also in Division G4] A magnetic pulse-counting chain comprises identical storage cores 1-n, Fig. 2, with respective primary windings N1-Nn of equal turns connected in series to a pulse-gated transistor Tr 1 , and respective secondary windings W1- Wn with different and graded numbers of turns connected in series to a transistor Tr 2 , the induced secondary current being maintained at a constant value by the secondary circuit transistor. Both transistors are gated by input pulses #t to be counted, each pulse being of such duration that a single core in the series 1 to n is switched in turn. - Since the secondary current induced by core switching is maintained at a constant level by transistor Tr 2 , the primary current increases linearly as each core is switched. A counter is described; Fig. 3, using transfluxors F0-F9 each with a major aperture and two minor apertures, Fig. 4 (not shown). All the transfluxors are initially in the blocked state with the core flux directed about the major aperture except for one core F1 which is switched to the set state, with all the core flux about the minor apertures, by a pulse at E 1 . The circuit used in Fig. 2 is duplicated and comprises winding groups 2, 3 and 4, 5, the pulses V#t or R to be counted being applied to one or other of the groups. Winding group 2, 3, gives a forward count and winding group 4, 5 gives a backward count. As each transfluxor is switched to the set state in turn the previously set transfluxor becomes blocked. An alternating voltage is applied to windings 6 and causes an identifying output to be induced in a secondary winding A 0 -A 9  of the set transfluxor. The arrangement may be used for counting power quantities.
Patent GB-1053231-A (GB)
IPC: B24B53/07
Abstract: 1,053,231. Grinding. COVENTRY GAUGE & TOOL CO. Ltd. June 10, 1964 [March 12, 1963], No. 9680/63. Heading B3D. A method of forming or trueing a grinding wheel 3 comprises mounting a forming or trueing roller 1 for movement in engagement with the periphery of the grinding wheel, and moving the roller along a curved path or arc corresponding to the diameter and helix angle or pitch of a required internal thread form. The trueing roller is mounted in a bearing 4 which is mounted in one arm 7 of a bracket 6 and is adjustable about an axis perpendicular to its spindle 5 to an angle corresponding to the helix angle of the thread to be ground. The other arm 9 of the bracket is radially-adjustable on a shaft 10 rotatably mounted in a stationary body part 15. The shaft is formed with a toothed part 16 engaged by a rack 17 which is supported for axial movement with the shaft 10 by a block 22 prevented from rotation relative to the body part 15 by a key or peg 23 engaging a slot 24 in the block. The rack also carries guide block 21 which is slidable during longitudinal movement of the rack in a guideway 19 in a drum 20 which is rotatably adjustable in the body part 15 to the helix angle of the thread to be ground. Thus, when the shaft 10 is rotated by a handle 29, the shaft also moves axially to move the trueing roller along a curved path corresponding to the helix of the internal thread to be formed by the grinding wheel. The angle of the guideway 19 in the drum may be accurately set by micrometer means or by slip gauges inserted between a stop 25 on the body part 15 and an eccentric pin 26 on the drum, the latter then being locked in position by a screw 27.
Patent GB-1070496-A (GB)
Abstract: 1,070,496. Miners' and like electric lamps. GRUBENLAMPENWERKE VEB. Oct. 16, 1965, No. 43950/65. Heading F4R. A housing for an electric safety lamp, for use in an explosive atmosphere, e.g. as a miner's helmet lamp, has a pressurized light chamber closed by a member having a transparent wall 3 forming part of or permanently sealed to a ring 2, and conductor members 6 sealed through the wall of the housing to a separate chamber 9 provided with a cable entry gland 7 consisting of a pressure plate 12, a seal insert 11 through which the cable 8 passes and a compression screw 10.
Patent GB-1228831-A (GB)
IPC: C08F2/00
Filed: 1968-05-01
Abstract: 1,228,831. Chemical reaction vessels; polymerization of olefines. MICHELIN & .CIE (COMPAGNIE GENERALE DES ETABS MICHELIN). 1 May, 1968 [2 May, 1967], No. 20677/68. Heading B1X. [Also in Division C3] Chemical reactions, e.g. the polymerization and copolymerization of olefines and/or diolefines, are carried out in a tubular vessel 1 (Fig. 1) forming a closed path between a point 2 where one or more components of the reaction mixture are continuously introduced through inlet 11 into the vessel and a point 3 where the reaction mixture is continuously removed through outlet 25, the mixture flowing through the vessel being separated into doses 5 by balls 6 (e.g. hollow spheres of metal) which are carried through the vessel by the reaction mixture. Intervention stations are provided along the vessel for introducing catalyst, and for withdrawing and/or recycling reaction mixture. For example, catalyst may be introduced at station 12; agitation may be effected by withdrawing mixture through outlet 14 and returning it (together with fresh catalyst or fresh monomer) through inlet 15; at a third station 20 is recycled part of the mixture withdrawn through outlet 21; and at a fourth station 23 is withdrawn a sample for checking purposes. Parts of the tubular vessel 1 are surrounded by jackets 7 for temperature-regulating fluids. The balls 6 are moved from the outlet end of vessel 1 to partition 30 in the bore 27 of block 4 by means of piston 29, which has a hemispherical cavity 33 in its base. Both the pistons 28, 29 then move away from partition 30, liberating a ball which is then entrained by the feed mixture into the inlet of vessel 1. The pistons are actuated automatically. The reaction may be carried out in a cluster of straight parallel tubes 50 (Fig. 2) connected in series by semi-circular bends 60, the various intervention stations being located in the bends, e.g. as at injection point 15. Examples relating to the polymerization of butadiene, and the copolymerization of butadiene and styrene, using heptane as solvent and lithium butyl (with or without hexamethylphosphorotriamide) as catalyst, are given in the specification; and graphs showing the molecular-weight distribution of the products are included.
Patent GB-1230617-A (GB)
IPC: H01P3/08
Filed: 1968-07-22
Abstract: 1,230,617. Switching circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 22 July, 1968 [21 July, 1967], No. 34933/68. Heading H3T. Two switching circuits, more particularly integrated and having a common reference potential are coupled together by a strip-line Fig. 2 consisting of three coplanar conductors the intermediate conductor 20 being connected to the reference voltage and the two outer conductors being terminated at the output ends by equal impedances. A suitable switching circuit comprises a long tail pair driven by emitter followers (Fig. 4, not shown). The input termination preferably correctly matches the line to absorb reflections and the output ends are preferably terminated by high impedance to reduce thermal dissipation. Only one termination need be a useful load. Other interconnections may be made by triple strip lines in which the two outer are at the reference potential.
Patent GB-1232305-A (GB)
IPC: G09G1/04
Filed: 1968-09-06
Abstract: 1,232,305. Cathode-ray tube circuits. INTERNATIONAL BUSINESS MACHINES CORP. 6 Sept., 1968 [15 Sept., 1967], No. 42544/68. Heading H4T. A cathode-ray tube beam deflection control circuit comprises two digital circuits controlling, respectively, the application of relatively large and relatively small increments of deflection current together with means for controlling the magnitudes of the relatively small increments in accordance with the digital valve represented by the state of the circuit controlling the relatively large increments. The magnitudes of the latter increments are scaled in accordance with the deflected position of the beam to provide correction for pin-cushion distortion and thus, when the smaller increments are employed to deflect the beam between the positions determined by the larger increments, by controlling the magnitudes of the smaller increments in accordance with the magnitudes of the larger increments (represented by the digital valve of the state of the associated circuit) the smaller increments are also scaled to provide correction for pin-cushion distortion. The larger increments are controlled by a decimal UP-DOWN counter 21 (Fig. 1), the magnitudes of the current steps produced by which are sealed, by the use of appropriately weighted resistors 23 ... 26 &c., such that to produce beam deflections steps of equal length currents steps are required having the relative magnitude of 7, 8, 9 or 10 units as shown in Fig. 2 in respect of the beam deflection steps produced by the stages C 1  to C 15  of counter 21. This arrangement, when utilized for the X and Y deflections, produces a coarse-grid of 16 x 16 points, each of which is corrected for pincushion distortion and the smaller current increments are then employed to divide each mesh of the coarse-grid into a fine-grid also of 16 x 16 points. The beam deflections for producing the fine-grid are controlled by a four-bit incremented position register 29, the output of which is connected via binary weighting resistors 31, 33, 35, 37 to a buffer and summing network 39 which includes, as shown in Fig. 4, transistors 123, 124 fed respectively with the coarse deflection signal #Ix and the fine deflection signal ##Ix. The magnitude of the current steps of the latter signal which are effective to produce beam deflection is determined by the magnitude of the current conducted by transistor 124 which, in turn, is determined by the bias on the base electrode developed across resistor 139 and this bias is varied by selectively shunting it withresistors 147, 149, 151 in accordance withthe state of triggers 141, 143, 145 which are switched between their two states by the condition of the various stages C 1  to C 15  of counter 21 connected to the logic circuitry as shown so that pin-cushion distortion is also corrected for this deflection. The arrangement of the invention is applicable to both X and Y deflections.
Patent GB-1233585-A (GB)
IPC: D01D5/253
Filed: 1968-08-06
Abstract: 1,233,585. Spinneret for non-circular crosssection filaments. SNAM PROGETTI S.p.A. 6 Aug., 1968 [8 Aug., 1967], No. 37564/68. Heading B5B. A spinneret plate for use in melt-spinning filaments of non-circular cross-section, comprises a plurality of slot-shaped extrusion orifices, each orifice having a cross-section in the form of at least three unbranched linear segments joined end-to-end, except for the outermost end of each of the two terminal segments, each segment, with the exception of the two terminal segments, being joined at its end region to the end region of an adjacent segment at an angle from 15-170 degrees, the imaginary rectilinear continuation of the outermost end of each of the two terminal segments not being directed at any other segments. Preferably, the angle at the joint is from 30-150 degrees. All of the segments may be substantially straight. There may be from 3-10 segments in the crosssection of each orifice, preferably from 4 to 10, and the unjoined end region of a terminal segment may be enlarged. Filaments made by extrusion of a melt spinnable thermoplastics material, capable of crimping after being stretched or after being stretched and subsequently heated, have a cross-section in the same form as the spinneret plate. Polyethylene terephthalate is the preferred material. In examples, polyethylene terephthalate filaments are melt-spun, and the extruded filaments drawn to draw ratios of from 3À44 : 1-3À77 : 1, and on unwinding the collected filaments a crimp with a wavelength of from 3-10 mm. is observed, which improves after immersion in boiling water, the frequency of the crimp rising to about four waves per cm., and the filament shrinking about 7-8%. Filaments so treated have, because of the crimp, an elastic elongation of from 20-55% depending on the stretching conditions used. The disclosure of Specification 1,153,543 is specifically disclaimed.
Patent GB-1233750-A (GB)
IPC: B21B1/42
Filed: 1968-11-28
Abstract: 1,233,750. Rolling mills. DEMAG A.G. 28 Nov., 1968 [19 Jan., 1968], No. 56602/68. Heading B3M. A workpiece 1, such as a continuous casting, is reduced by a pair of rolls 10, at least one of which is moved by actuators 4 and 5 under the control of a data-processing system 28. Movements of the or each roll are sensed electrically, mechanically, or hydraulically and are compared with a reference, such as a rotating magnetic tape. Resultant signals are fed to a unit 27 for controlling the movement of the rolls by actuators 4 and 5. The actuators, which are pivoted to a pair of frames 2, may be controlled hydraulically or by electric linear motors. Several pairs of rolls may be provided in a plane at right angles to that shown.
Patent GB-1250749-A (GB)
IPC: H01L21/302
Filed: 1970-04-03
Abstract: 1,250,749. Oxydehydrogenation catalysts. AMERICAN CYANAMID CO. 3 April, 1970 [23 April, 1969], No. 16016/70. Heading B1E. [Also in Division C2] Catalysts for the oxydehydrogenation of saturated carboxylic acids and esters to α-#- unsaturated acids and esters comprise calcined precipitated phosphate of bismuth and iron with optionally lead in proportions x Bi, Fe, n Pb where x is 0.1 to 12 and n is O to 12. Preparation is by precipitation of the phosphates from soluble salts, e.g. nitrates followed by washing, drying and calcining at from 400- 600C. Supports may be alumina or silica such as quartz granules.
Patent GB-1251562-A (GB)
IPC: H02K7/18
Filed: 1969-02-21
Abstract: 1,251,562. Reciprocating generators. R. POUIT. 21 Feb., 1969 [23 Feb., 1968], No. 9599/69. Heading H2A. [Also in Division F1] A reciprocating inductor-alternator has two reluctance-varying members of magnetic material reciprocable in overlapping parallel relation to each other and 180 degrees out of phase, whereby the current generated has a frequency which is a multiple of the frequency of the reciprocating motion. As shown in Fig. 1, the two members 8, 10 each consisting of a frame 23, Fig. 6, with spaced, soft-iron crossbars 24, are connected by rods 6, 17 and crossheads 16, 7 to pairs of pistons 3 1 , 3 2  and 4 1 , 4 2  of two tandem-arranged, free-piston, two-stroke engines 1, 2. In this embodiment, the crossheads are also connected to three other pairs of members 8, 10 arranged symmetrically about the engines 1, 2, each pair of members being reciprocable in air gaps in linearly-arranged field magnets 20α 1  . . . 20α 3  carrying stationary armature conductors 22, the field magnets being excited in parallel by coils (21). Polyphase currents may be produced by axially staggering the pairs of members 8, 10 with respect to the engines or by axially staggering the groups of field magnets. Synchronism between the engines is maintained by connecting the two moving systems to a crank-shaft n, o and flywheel 14 by links 12, 13. As shown in Fig. 6, the transverse edges of the bars 24 are curved, thus avoiding abrupt changes in reluctance and producing a substantially sinusoidal output distortion of which at the ends of the piston strokes may be avoided by varying the excitation of coils (21) in the opposite sense to the variations in linear velocity of the members 8, 10, e.g. by providing an excitation generator with asymmetrical commutator bars or by providing rheostats in the excitation circuit with sliders connected to members 8, 10 and engaging windings with a varying pitch which produces a corrective effect. To avoid the necessity to vary the excitation current, two pairs of engines 1 1 , 2 1  and 1 2 , 2 2 , Figs. 4, 4b, operate in parallel out of phase with one another by an amount equal to half the travel of the reluctance-varying members. The pistons operate pairs of reluctance-varying members 8 1 , 10 1  and 82, 10 2  on opposite sides of each engine which co-operate with sets of field magnets 20 1 , 20 2  also staggered axially with respect to each other by an amount corresponding to the phase difference between the engines. Use is therefore made of the substantially constant linear velocity over the central half of the piston stroke to produce outputs from the sets of field magnets which are undistorted continuations of one other. A further embodiment is described in connection with Fig. 7 (not shown), wherein the height of the field magnets is reduced and changes are made in the dimensions of the reluctance-varying members to produce a higher output frequency.
Patent GB-1259484-A (GB)
IPC: F02F1/42
Filed: 1969-02-19
Abstract: 1,259,484. I. C. engine cylinder heads. ROLLS ROYCE Ltd. Feb. 19, 1969, No. 8979/69. Heading F1B. An I. C. cylinder head has an inlet chamber 20, Fig. 2 and an exhaust valve chamber 22 located above the respective valve openings, and, in the plane containing the vertical axes of the valve openings, the inlet chamber has one wall a part of which converges with the valve opening axis as it approaches the valve opening and the exhaust chamber having one wall a part of which diverges from the exhaust valve opening axis as it approaches the exhaust valve opening, the two wall parts being substantially parallel and spaced apart to partially define a cooling water chamber. The inlet duct 18, Fig. 1 is shaped to provide swirl and the exhaust duct 22 is arranged so that the exhaust gas is divided one part flowing directly into a duct portion and the other part flowing around a valve guide which projects into the duct and then flowing into the exhaust duct portion.
Patent GB-1265778-A (GB)
IPC: B65B53/06
Filed: 1970-12-14
Abstract: 1,265,778. Shrink-wrapping. C. KELLER & CO. 14 Dec., 1970 [22 Jan., 1970], No. 59280/70. Heading B8C. [Also in Division F4] A shrink-wrap film heating apparatus comprises a shrinkage chamber 9 to which hot air can be admitted and which is opened when stacked goods loosely shrouded in film are inserted and is closed while hot air is fed to the film, a heater space 10 housing an air heater 21 and a fan 19, the heater space 10 communicating with an air inlet duct 18 and an air outlet duct 12 serving the shrinkage chamber 9, and cut-off devices 38, 16 for the ducts, which can close the connections between the heater space and the shrinkage chamber and open a duct 14 for circulating the air within the heater space when the shrinkage chamber is open, the shrinkage chamber being formed by a hood 5 which is fitted at one side of the heater space 10 and can be pivoted upwardly to open the chamber. As shown, the floor of the chamber 9 is formed by a trolley 25, a number of which are arranged in succession to form an endless conveyer running on top rails 28, 29 and on bottom rails (not shown). Each trolley is provided with a stop 32 for the goods 31 and with trunking 35 communicating with the hollow bottom of the trolley and with the cut-off device 38. In use, the hood 5 is closed over the goods 31, and with the devices 38, 16 in the solid-line position, hot air is circulated through adjustable shutters 24 around the goods to raise the temperature of the shrinkwrap film to the desired level. Thereafter the hood 5 is raised and the devices 38, 16 moved to the dotted line position to allow the heated goods 31 to cool before being replaced by goods on the next trolley to be run into the chamber 9.
Patent GB-1266391-A (GB)
IPC: C07C67/04
Filed: 1969-06-20
Abstract: 1,266,391. Esters. HALCON INTERNATIONAL Inc. 20 June, 1969 [21 June, 1968], No. 31363/69. Heading C2C. Esters are prepared by reacting an olefinically unsaturated compound with a carboxylic acid anion at elevated temperature and in the presence of iodine and at least one metal-containing or nitrogen-containing compound. The olefinic compounds may be ethylene, propylene, butene-2, allyl alcohol and acetate and methyl butene-2 and many others are listed. The iodine may be provided as such, or by reacting oxygen and an iodine producing compound in the presence of an acid. The presence of oxygen enables the iodine to be regenerated in a continuous process. The metal containing compounds are alkali metal compounds, or compounds of metals of atomic number 21 to 30 and 48 capable of producing cations in solution and nitrogen-containing bases such as trialkylamines, ammonium acetate, piperidine and pyridine are specified. Many carboxylic acids are listed and acetic acid is preferred. Examples describe the reaction of ethylene with acetic acid and oxygen with potassium, manganese, iron, nickel, chromium, copper, cobalt, zinc or cadmium acetates and iodine or potassium iodide to yield ethylene diacetate; propylene to yield propylene glycol mono- or diacetate; allyl alcohol or acetate to yield triacetin; butene-2 to yield 2, 3 butane diacetate; 2, methylbutene-2 to yield methyl butene-2-2,3-diacetate; hexadiene to yield 5-hexene-1,2-diacetate; styrene to yield ethyl benzene 2,#-diacetate. Butene-2 or tetradecene, or decene-1, are also reacted with propionic, pentanoic, n-undecylic, suocinic, cyclohexane carboxylic or picolinic acids to form the corresponding carboxylates. Cyclohexene may be reacted with #-chloropropionic acid to form cyclohexane 1,2-di-#-chloropropionate, and propylene may be reacted with o-methoxybenzoic acid to form propane 1,2-di-o-methoxy benzoate.