baber/WOPTO huggingface dataset:
Patent GB-546712-A (GB)
Title: Improvement in valve
IPC: B60C29/00
Filed: 1940-09-19
Abstract: 546,712. Valves. WINGFOOT CORPORATION. Sept. 19, 1940, No. 14374. Convention date, March 23. [Class 135] In a valve assembly for plural chambered tubes in which a conical seating 26 has a plurality of ports 16, 18 a conical valve 25 is carried by an extension formed by inner and outer metal parts 20, 21, connected by a flexible rubber portion 22. The valve 25 has a lateral port 27 leading to a bore 23 in the extension and in the latter is a non-return valve 24. The valve is adjusted towards its seat by axial movement of the extension by a screw-threaded member 28. In a modification the valve is rotatably secured to the extension and the port 27 is replaced by an annular clearance between the valve and the extension. Specifications 456,294, [Group XXXIV], and 544,001 are referred to.
Patent GB-110194-A (GB)
Title: Sound Absorbing Material for Walls and Ceillings.
Inventor: SABINE WALLACE CLEMENT
IPC: C04B28/02
Filed: 1916-10-12
Abstract: 110,194. Sabine, W. C., and Guastavino, R. Oct. 12, 1916. Drawings to Specification. Compositions containing cement, lime, or plaster and sand, pumice, or crushed rock or brick.- A sound-absorbing porous composition consists of particles of sand, pumice, or crushed rock or brick graded to an approximately uniform size and mixed with just sufficient cement, lime, or plaster that the particles are bonded only at their points of contact and the pores intercommunicate and openly penetrate the exposed surface. As an example, three parts of sand which will just pass through a sieve having 12 meshes to the inch, and one part of cement may be used. It may be used for forming or facing walls and ceilings and as an alternative to the porous ceramic material described in Specification 20463/14, [Class 20 (iv), Floors &c.].
Patent GB-611969-A (GB)
Title: Improvements in the manufacture of target boards for games or sports and target boards so produced
IPC: F41J1/01
Filed: 1946-05-15
Abstract: A slab of compressed straws, fibres or the like from which target boards, e.g. dartboards are made comprises a compressed assembly of short lengths of straw or fibres which have been treated with a binding medium, the straws or fibres being disposed in side-by-side relationship and end-on to the face of the slab.
Patent GB-514847-A (GB)
Title: Improvements in ploughing machines
IPC: A01B3/26
Filed: 1938-05-17
Abstract: 514,847. Implements for working land. CRAWFORD, R. H. May 17, 1938, No. 14677. [Class 6 (i)] In a plough having separate frames on opposite sides of the central axis of the machine, and so mounted that each frame can be raised out of the ploughing position, each frame is hinged so that it . can tilt laterally relatively to the other frame so that the frame in use is substantially parallel to the ground irrespective of the position of the other frames. The frames 1, 2, Fig. 3, carrying shares &c. not shown, are each pivoted at 15 to a plate 14 carrying the bearing 9 for an axle 8 the cranked end of which carries the furrow wheel 5. The axles 8 are independent of each other and are held together by a sleeve 10. The forward end of each frame can be raised, by power derived from the wheels 5, by moving a lever 19, Fig. 5, so as to engage a rack 17, pivoted on the plate 14, with a pinion 16 rigid with the wheel 5. The forward movement of the plough causes the rack to move the crank axle 8 downwards and lift the forward end of the frame. A lever 11, rigid with axle 8, is connected by a chain 12 with the forward end of the frame and by a chain 28 to the upper end of the pivot 6 of the rear castor wheel 4, the chain passing round a pulley so as to raise the rear end of the frame. To provide additional support for the rear end of the plough, chains 29, Fig. 3, connect the lower end of the pivot pin 6 of each frame with the upper end of the pin 6 of the other frame. Adjustment for depth of ploughing of the inner shares of each frame is effected by a screw and nut 30, 32 which controls a bearing block for the axle 8. The outer shares are adjusted by a screw 34 engaging a pillar 35 on the plate 14. The draw-bar may comprise members 38 of equal length pivoted to each frame, or the two members may be rigidly attached to each other by means of a gusset plate. Fig. 4 (not shown). Specification 515,345 is referred to.
Patent GB-1481117-A (GB)
Title: Blood pressure measuring apparatus
IPC: A61B7/04
Filed: 1975-04-10
Abstract: 1481117 Blood pressure measurement MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 10 April 1975 [12 April 1974(2) 16 April 1974 18 April 1974(3)] 14771/75 Headings G1G and G1N In a blood pressure measuring system, of the type in which the pressure in a cuff applied to the arm is gradually reduced from a value above that needed to occlude an artery and the Korotkoff sounds associated with re-commencement of the blood flow are monitored by a microphone, respective band-pass filters separate the heart pulse, sphygmus, and Korotkoff frequency components of the microphone signal, a respective pulse derived in each sphygmus period is used to gate the detection of the Korotkoff sound occurring in that period, the maximum blood pressure is measured when the Korotkoff sound is first detected in two or more successive sphygmus periods, and subsequently the minimum blood pressure is measured when the Korotkoff sound is first absent in two or more successive sphygmus periods. The gating of the detection reduces background noise problems of the prior art. The embodiment described with reference to Fig. 2 uses a 5-30 Hz filter to select the sphygmus component B from the microphone output A to trigger a monostable of output C from which clockpulses D are derived. Korotkoff sounds E in the range 30-200 Hz are selected by a second filter and trigger a second monostable which is enabled by gating pulses C. The output waveform F of the second monostable is fed to the data input of a shift register clocked by the pulses D. When the outputs L, M, N of successive stages of the shift register are simultaneously at the high level a latch circuit is set for registering the cuff pressure, i.e. the maximum blood pressure. As the cuff pressure decreases the Korotkoff sound level decreases until it is no longer detected and the data input to the shift register is then at the low level. When outputs L, M, and possibly N, are simultaneously at the low level a second latch circuit is set for registering the minimum blood pressure. As the frequency spectrum of the Korotkoff sounds differs at minimum blood pressure condition from that at maximum blood pressure, the bandpass of the second filter is preferably switched automatically from 30-100 Hz to 50-100 Hz after the maximum blood pressure occurrence. Details are given, Figs. 6, 7 (not shown) of AGC circuits for ensuring that the later portions of any prolonged sphygmus pulse B are unable to trigger the first monostable, so that the latter is triggered only once per sphygmus period.
Patent GB-1041754-A (GB)
Title: Improvements relating to glazing strips
Inventor: WEBB RONALD RICHARD
IPC: B60J10/02
Filed: 1963-04-19
Abstract: 1,041,754. Glazing strips. HOWARD CLAYTON-WRIGHT Ltd. April 10, 1964 [April 19, 1963], No. 14839/64. Heading E1R. A glazing strip, Fig. 1, is formed in two parts each as an extrusion of P.V.C. One part 12 having a U-transverse section 12 to provide an open mouth to receive the glass 10 and having a tongue 23 projecting on one side from the base of the U, the other strip part 13 of extruded P.V.C. U-section being interlockingly engageable on the tongue 23 by teeth 24 and together with an extension 19 on the other side of the first strip part forms a channel to receive the edge of the panel 11. The side 18, 19 of the first strip part exposed to view has an embellishment in the form of metal foil 14 or metallized plastic foil. In a modification, Fig. 2, the first part 32 has a tongue 36 extending parallel to one leg of the U and spaced therefrom, the second part being of U-section to clip over the tongue 36 and the edge of the panel 11.
Patent GB-601026-A (GB)
Title: Improvements in or relating to a control device
IPC: B64D13/04
Filed: 1945-06-12
Abstract: 601,026. Aircraft pressure cabins. MINNEAPOLIS-HONEYWELL REGULATOR CO. June 12, 1945, No. 14841. Convention date, June 22, 1944. [Class 4] [Also in Groups X, XXXV and XXXVII] The pressure in an aircraft cabin is maintained at a datum which can be adjusted between limits dependent upon the difference between the cabin pressure and atmospheric pressure. Air enters the cabin at 20, Fig. 1, and leaves through a valve 14 adjusted through gear 15 by a reversible two phase A.C. motor 17. While one field winding 22 is constantly energized, the other field winding 23 is fed from an amplifier 35, whose output varies in phase in accordance with potentials derived from networks 64, 70. Network 64 includes a potentiometer arm 92 driven by gearing 15 from motor 17 so as to follow up valve 14, and a potentiometer arm 90 moved by a bellows 113 affected by air pressure of the cabin. Network 70 includes a potentiometer arm 77 driven through gearing 121 by a D.C. motor 154 controlled by manually operated switch 125 through switch 128. As a consequence, undesired variations in pressure in the cabin causes arm 90 to move to vary the potential applied to the amplifier 35 so that the motor operates to adjust the valve 14 until the follow-up arm 92 stabilises the system. Desired variations in pressure are produced by manual operation of switch 125 to close either contacts 130, 134, or 131, 135 to energize one or other of the field windings 137, 166, of D.C. motor 154. The rate of variation is determined by manually operated switch 162 which moves arm 158 to vary resistance 157 and thus the current through the armature of the motor 154 and therefore its speed. To prevent cabin pressure becoming too much greater than atmospheric pressure, a bellows 176 is open to the atmosphere so that at a predetermined pressure difference arm 151 moves away from contact 152 and completes the circuit of field. winding 166 through contact 178 to operate the motor 154 to lower the setting of arm of 77. To prevent atmospheric pressure exceeding cabin pressure (as during descent of the aircraft) a bellows 183 is open to the atmosphere so that at a predetermined pressure difference arm 169 breaks the circuit of field winding 166 at 170 and through contact 190 energizes a signal 191 to warn the pilot. The switch 128 preferably consists of two arms 128, 129, Figs. 2 and 3, carrying contacts 130, 131 (not shown) loosely mounted on shaft 122 ; an arm keyed to shaft 122, enters between the arms 128, 129 to separate them against action of a spring 231 which tends to bring them together ; arms 132, 133 carry contacts 134 (not shown), 135 are keyed to shaft 127 so that upon rotation of one or other of 132, 133 makes contact with and presses round one or other of 128, 129 until such time as shaft 122 has been rotated to open the contacts.
Patent GB-1390784-A (GB)
Title: Method for storing and reproducing data carrier for carrying  out this method and method for manufacturing the carrier
IPC: G11B3/44
Filed: 1972-03-29
Abstract: 1390784 Recording and playback; record carriers TED BILDPLATTEN AG AEGTELEFUNKEN TELDEC 29 March 1972 [31 March 1971 9 March 1972] 14854/72 Headings G5R and G4M [Also in Division H4] Information, e.g. video signals, is stored in tracks 12-14 on a carrier 1 as regions 10, 11 of different hardness. As shown, soft regions 10 may be formed in a relatively hard carrier 1; or vice versa, Figs. 2, 7 (not shown). The intertrack regions 15, 16 are as hard as the hard regions 11 to guide the playback transducer. The carrier surface may be flat, or grooved along the tracks. The hard regions 11 and intertrack regions 15, 16 may also be upstanding, Figs. 4-7 (not shown), and may then be covered completely (Fig. 4), or partially (Figs. 5, 6), by a soft elastic layer (29), (35) such as a varnish or lubricating substance. The carrier may be a disc or tape. Optical reading, Figs. 8-15 (not shown). Local changes in hardness are produced by irradiating the carrier 1, which is a plastics material in which the degree of cross-linking or of polymerization is changed thereby. The carrier may be directly irradiated by a modulated, scanning beam such as an electron beam (Figs. 8, 15), a laser beam (Fig. 9), or gamma or ultra-violet radiation. Alternatively, such a beam may be used to produce photographically a mask through which the complete carrier may subsequently be irradiated (Figs. 10, 11). The cross-section of the scanning beam is such as to produce a track which is harder towards the edges (Figs. 12-14). The same result may be produced with an electron beam by scanning the beam rapidly across the track and modulating the intensity accordingly (Fig. 15). Playback.-A scanner 2, Fig. 1, comprises a skid 3, a pressure-sensitive transducer 4 and an attenuating layer 5, mounted rigidly on a tube 6 with the skid 3 compressing the track 13. The scanner 2 is traversed as the carrier 1 is rotated, Fig. 3 (not shown), and the speed of traverse may be adjusted to give still or slow motion pictures from video tracks.
Patent GB-1326313-A (GB)
Title: Process for converting absorption holograms into phase holograms
IPC: G03C1/66
Filed: 1971-05-14
Abstract: 1326313 Holograms AGFA-GEVAERT A G 14 May 1971 [26 May 1970] 14888/71 Heading G2J Phase holograms are photographically produced from absorption holograms using a light-sensitive layer which undergoes a change of refractive index or exposure. Preferred layers are bichromated gelatine and photo-crosslinkable polymers (e.g. polyvinyl annamates), an exposed bichromated gelatine layer may be soaked (especially in a hardening solution), optionally treated with a photographic fixer, rapidly dehydrated (e.g. with isopropanol) and dried. Preferably the image bearing surface of the absorption hologram is contacted with the support of the light-sensitive layer and a laser beam passed through the assembly while maintaining the Bragg condition. In modifications either (a) a mirror is contacted with the light-sensitive layer so that two transmission and two reflection holograms are recorded, or (b) a second reference beam is additionally used so that single transmission and reflection holograms are recorded. Any shrinkage in the absorption hologram can be compensated by using shorter wavelength light for the exposure. Reference has been directed by the Comptroller to Specification 1259971.
Patent GB-1309495-A (GB)
Title: Fluid bearing structure
IPC: F16C32/06
Filed: 1971-05-14
Abstract: 1309495 Fluid bearing OWENS-ILLINOIS Inc 14 May 1971 [25 May 1970] 14916/71 Heading F2A A fluid bearing assembly has a rotor 12 supported in a stator 15 which is mounted in a base for limited rotation about spaced axes which intersect the axis of the stator. The rotor and stator have complementary surfaces 16-21 defining a bearing clearance to which fluid is supplied under pressure from a plenum chamber 23 via restricted passages 22 in the stator. The bearing surfaces may extend both axially and radially of the rotor in order that both axial and radial loads may be transmitted from the rotor. The stator 15 is supported by ball bearings in a support ring 25 which is itself supported by ball bearings 27 in the bearing pedestal 11. The rotor may be supported by two such assemblies.
Patent GB-1139080-A (GB)
Title: Improvements in or relating to injection moulding or die casting machines
IPC: B22D17/22
Filed: 1966-04-04
Abstract: 1,139,080. Injection moulding machines. H. G. E. AHLBIN. 4 April, 1966 [2 April, 1965], No. 14921/66. Heading B5A. [Also in Division B3] A plurality of mould halves 18 are cut away at one corner to form a surface 21 which cooperates with one side of a polygonal block 10 which, when brought into engagement with a similar block (not shown), defines distribution passages 12 for injected material. In the example shown, there are four square or rectangular moulds, one of which is removed in the Figure. Ribs 16 on the block 10 engage in corresponding grooves in the surfaces 21 of the mould halves 18. Cooling fluid is circulated through ducts 17 in the block 10. The complementary block (not shown) is mounted on a stationary platen and provided with an inlet passage communicating with a gate 11. The gate 11 has a conical core 14 and holes 15 for ejector pins.
Patent GB-1076789-A (GB)
Title: Photographic objective of continuously variable focal length
IPC: G02B15/14
Filed: 1966-04-04
Abstract: 1,076,789. Zoom objectives. CARLZEISS-STIFTUNG [trading as CARL ZEISS]. April 4, 1966 [April 3, 1965], No.14980/66. Heading G2J. A photographic zoom objective consists of four lens groups:- (A) a fixed collective first group consisting of three air-spaced elements, viz. a front dispersive meniscus L I , biconvex element L II  and rear collective meniscus L III , each element being such that the refractive power of its front surface minus that of its rear surface is positive; (B) a movable dispersive second group consisting of a dispersive front element L IV  and rear dispersive cemented doublet formed from a front dispersive element L V  of glass of lower dispersion and a rear collective element L VI  of glass of higher dispersion, each element being such that the refractive power of its front surface minus that of its rear surface is positive; (C) a movable dispersive third group consisting of a meniscus-shaped element which is convex to the diaphragm; and (D) a fixed collective fourth lens group comprising at least three converging elements L VIII , L XI , L XII , one of which L VIII is in front of the diaphragm, and at least two dispersive elements L X , L XIII , one of which, L x , is a ' meniscus directly behind, and concave to, the diaphragm, and has at least two converging elements at its rear. Optical data are provided for the example shown, L IX  being a beam splitter for use with the viewfinder.
Patent GB-406968-A (GB)
Title: Improvements in and relating to methods of and means for connecting together the edges of sheets or films in particular in the manufacture of bags and other containers
IPC: B65D33/00
Filed: 1932-05-27
Abstract: 406,968. Binding edges of sheet material. WOLFF & CO. KOMMANDITGES. AUF AKTIEN, Walsrode, Germany. May 27, 1932, No. 15090. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 3, 1932]. [Class 16.] Sheets of paper, viscose, &c., particularly in the manufacture of bags, are connected together by being rolled up or folded once or more times with a strip or strips of metal, e.g. lead aluminium, tin, &c. 4, 5, and then pressed flat. The metal strip connection may be disposed only at the longitudinal edges of the bag, the bottom being formed continuous, or the two faces may be adhered directly together to form the bottom closure 8. Alternatively the metal binding strip may be held only at the bottom of the bag. In the case of a bag, Fig. 7, having a base of larger area than its mouth, the bottom 16 may be formed so as to be opened out, the bag, with metal folding strips 18, 19, being stable and the mouth being closed by any suitable closure means.
Patent GB-1182283-A (GB)
Title: Process for the Manufacture of 15,16beta-Methylene-Steroids
IPC: C07J75/00
Filed: 1967-04-03
Abstract: 1,182,283. Steroids. SCHERING A.G. 3 April, 1967 [2 April, 1966], No. 15174/67. Heading C2U. 15,16#-Methylene steroids having the partial general formula are obtained in a process which comprises methylenating a corresponding #<SP>15</SP>-17-keto steroid at the 15,16-double bond, e.g. by means of dimethylmethylene sulphonium oxide or by reaction with diazomethane eliminating nitrogen from the resulting pyrazoline ring.
Patent GB-754022-A (GB)
Title: Improvements in or relating to the preparation of diarylethanes
IPC: C07C2/70
Filed: 1954-05-24
Abstract: 1,1-Diarylethanes are prepared by reacting acetylene with a mono- and/or di-alkyl substituted benzene in the presence of a sulphuric acid-mercuric compound catalyst system in which the mercuric compound is introduced in solution into the reaction mixture in an amount of one part of metallic mercury by weight to 150 to 2500 parts and preferably 333 to 1000 parts of sulphuric acid.  The mercuric compounds may be the sulphate, chloride, acetate, oxide or carbonate and it may be dissolved in any of the liquid components of the system such as sulphuric acid, toluene, o-, m- or p-xylene or ethyl benzene or a limited quantity of water.  In examples a mixture of toluene and sulphuric acid was stirred and a catalyst consisting of treated mercuric sulphate, mercuric chloride or mercuric acetate was added, acetylene passed in and the whole stirred at about 10 DEG  C., after distilling off unused toluene the resulting ditolylethane was distilled.  The 1,1-diarylethanes may be catalytically cracked in the vapour phase to yield nuclear-substituted styrenes.
Patent GB-1300657-A (GB)
Title: Parts stacker
Inventor: HUGHES FRANCIS HOWARD
IPC: A41H43/02
Filed: 1970-03-31
Abstract: 1300657 Stacking garment parts CLUETT PEABODY & CO Inc 31 March 1970 15207/70 Heading B8C Garment parts are transferred to a stack by being gripped between upper moving surfaces and lower moving or stationary surfaces. The lower surfaces are moved apart to allow the parts to fall on to a stack. As illustrated, garment parts 20 are transferred between endless belts 13 and 14 and relatively frictionless surfaces 12a and 12b which can be withdrawn by devices 15 and 16 to allow the parts to fall onto a stack on a table 10. The surfaces 12a and 12b may be of P.T.F.E. or nodularized metal and the belts may be of cloth or rubber. The table 10 is inclined to allow for the presence of seams along one edge of the parts. The table is vertically movable and may be spring loaded so that it falls under the weight of the stacked parts. Alternatively the table may be moved by a double acting piston and cylinder arrangement, Fig. 3 (not shown), one side of which is subject to constant pressure and the other side of which is connected to a source of pressure or to atmosphere for periods which depend on the lengths of voltage pulses supplied to control valves. In modifications, not shown, the belts may be of the same width as the supporting surfaces, a single wide belt may engage both supporting surfaces, or the supporting surfaces may themselves be belts which are driven either by engagement with the upper belts or by an external drive.
Patent GB-823785-A (GB)
Title: Improvements relating to moulded articles
Inventor: SLY GEORGE FREDERICK
IPC: G05G1/10
Filed: 1956-05-16
Abstract: 823,785. Moulding knobs &c. UNITED EBONITE & LORIVAL Ltd. April 1, 1957 [May 16, 1956; Nov. 19, 1956], Nos. 15218/56 and 35248/56. Class 87(2). A moulded article is made in two parts of different colours with a dovetail or like joint between them, the female part being shrunk on to the male part whereby the two are drawn closely together by the wedge action of the joint. In the particular case of a knob for a gas tap, the dividing line between the two mouldings 1, 2 is in the central plane of the knob at the parts near the outer surfaces, but in the interior a dovetail recess 3 with undercut sides is formed in the moulding 1 with a corresponding projection 4 in the moulding 2. Part 2 is moulded and allowed to cool and part 1 is moulded and fitted to part 2 while hot. Part 1 has two retaining lugs 5 which project beyond the surface 6 of the moulding which abuts against surface 7 of part 2 so that after part 1 has cooled and become rigid, the two parts will be securely fastened together.