baber/WOPTO huggingface dataset:
Patent GB-556179-A (GB)
Title: Improvements in or relating to automatic control apparatus
IPC: G05B11/01
Filed: 1942-04-04
Abstract: 556,179. Automatic control systems. FERRANTI, Ltd.; and ATKINSON, L. April 4, 1942, No. 4521. [Class 38 (iv)] [Also in Group XL] Power &c.-An indicator of the extent and direction of the deviation of a controlled condition from a datum value varies the relative quantities of light falling upon two photo-electric cells from a beam which is modulated at a definite frequency, so that variable amplitude alternating current of that frequency occurs as an output of an amplifier or amplifiers connected to the cells. This alternating current is employed to correct the condition, as by being superimposed on an alternating current of the same frequency, or by controlling a reversible electric motor. A beam from a lamp 23, supplied by direct current modulated by A.C. from a transformer 26, is directed by a mirror, carried by a sub-standard watt meter 21 so that, when the watt output from a supply transformer 15 is normal, photo-electric cells 1, 2 are equally illuminated and the output of amplifies 8, 81 to a transformer 11 is balanced. Under other conditions an alternating voltage, of value and sense depending upon the extent and sense of the deviation from normal wattage, is supplied to an amplifier 13 the output of which is fed to an additional primary winding 14 on the transformer 15 to correct the voltage and current supplied to watt meters 19 under test. The amplified output may actuate a relay to control a reversible motor, of the induction disc type for example, controlling the condition. The light source may be a D.C. lamp with mechanical means modulating the beams or other beamdirecting means may be employed, including Kerr cells vibratory members shutter or the like.
Patent GB-348533-A (GB)
Title: Improvements in or relating to the stiffening of boot or shoe uppers
IPC: A43D95/12
Filed: 1930-02-11
Abstract: 348,533. Boots &c. BRITISH UNITED SHOE MACHINERY CO., Ltd. and MELLERIO, L. P., Union Works, Be]- grave Road, Leicester. Feb. 11, 1930, No. 4536. Drawings to Specification. [Classes 17 (i) and 17 (ii).] Stiffeners.-In the production of thermoplastic shoe-end stiffeners that contain in a defined area a reduced proportion of stiffening material, the blanks are first subjected to a treatment which facilitates removal of stiffening material from that area, and then subjected to pressure to effect the removal. Preferably, the blanks are heated individually prior to the action of the pressing means. The blank feeding mechanism described in Specification 326,830, [Class 17 (i), Boots and shoes, Apparatus for making &c.], delivering to pressure rolls of the kind described in Specification 236,600, [Class 17 (i), Boots and shoes, Apparatus for making &c.], may be used. As the puffs travel from the magazine to the rolls, their rear margins may be heated by an electric resistance moving with them in this travel. A conveyer may be interposed between the feeder and the rolls, and the puffs may pass under a heat-radiating plate extending above the conveyer, or the conveyer may travel in a tunnel to which hot air is supplied.
Patent GB-711825-A (GB)
Title: Improvements in or relating to arrangements for crosstalk reduction in electric double side-band carrier communication systems
Inventor: JACOBSEN BENT BULOW
IPC: H04J1/12
Filed: 1952-02-22
Abstract: 711,825. Preventing inductive disturbance. STANDARD TELEPHONES & CABLES, Ltd. Feb. 13, 1953 [Feb. 22, 1952], No. 4731/52. Class 40 (4) In a communication system wherein a frequency multiplex system transmitting a carrier frequency and two sidebands in respect of each channel is operated over each of a number of adjacent communication circuits, and the same series of carrier frequencies is employed over each, means are provided for adjusting the phases of the carrier waves transmitted over the respective circuits so that at least one of the stations of the system (terminal or repeater) the phases of the carrier waves on the respective circuits are substantially the same. This adjustment ensures that sidebands induced in adjacent circuits are substantially 90 degrees out of phase with the carrier frequency on that line and cross-talk is in consequence a minimum. Phase shifters 13-15, 28-30, 43-45, Fig. 1, provide adjustment of the phase of the currents supplied by oscillators 1-3 to modulators 7-9, 22-24, 37-39. They may be set to produce carriers of similar phase at the transmission terminals, or the phase measuring device described with reference to Fig. 3 (not shown) may be used at any point along the transmission path to arrange for adjustment of the phase shifters at the terminal stations to produce phase equality at that point. Circuit 2 is terminated at a branch station 97, Fig. 4, some distance from the main route and the carriers are used to synchronize the oscillators 105-107 of a transmitter 99 working to the right-hand terminal. Phase shifters 108-110 are provided to give identity of carrier phase at the outputs of main line repeaters 94, 95. Equalization of the velocities of propagation over the various circuits by means of adjustable delay networks as a preliminary to. phase adjustment is also described and a suitable delay network is described with reference to Fig. 6 (not shown).
Patent GB-854482-A (GB)
Title: Panels for building construction
IPC: E04F13/00
Filed: 1957-02-12
Abstract: 854,482. Roofs; walls; roof lights; metal sheeting. MESNAGER, J. J. E. Feb. 12, 1957 [Feb. 21, 1956; May 15, 1956], No. 4744/57. Classes 20(2), 20(3) and 20(4) Building panels comprise alternate webs 2, Fig. 2, parallel with or inclined to the general panel surface, and flanges 1 more inclined than the webs 2 to this surface, the webs 2 being ribbed parallel to their joint edges with the flanges, which are ribbed at right angles to these edges as shown where the panels are generally flat and parallel to these edges where the panels are curved axially thereof (Fig. 1, not shown). As applied to a skylight construction, webs 2, Fig. 4, alternate with flanges 1 composed of panels of ribbed glass or transparent synthetic resin. The webs and flanges may be braced by struts, e.g. 3, 4, Fig. 4, and are joined by the co-action of secondary flanges 1a, 2a, Fig. 6, thereon, one of which may be longer than and bent over the other as shown before locking indentations 7 are pressed therein, or a separate U-shaped member may be placed over the flanges 1a, 2a before such pressing; alternatively the flanges 1a, 2a may be bent into waves or into a zig-zag formation 9, Fig. 8, which is locked by a further bent-over strip. Tongue pieces for attachment to beams may be inserted between the flanges 1a, 2a before they are joined, the tongue pieces having one end hooked to engage the flange 1a.
Patent GB-1003851-A (GB)
Title: Depilation process
IPC: C14C1/06
Filed: 1964-02-04
Abstract: In removing hairs or wool from soaked hides or skins by treating the with aqueous depilation liquor containing proteolytic enzymes, a N,N,N1,N1-tetraalkyl thiuram disulphide, e.g. the corresponding tetramethyl or tetraethyl thiuram disulphide, functioning as a bactericide, is present during the treatment with the depilation liquor and/or during soaking, to prevent growth of harmful bacteria. Suitable proteolytic enzymes are those from Bacillus pumilus, megatherium, subtilis and cereus.  One or more than one additional bactericide, such as 3,5-dichlorosalicylic acid-31,41-dichloroanilide or a mixture of 5-chlorosalicylic-31,41-dichloroanilide with 5-bromosalicylic acid-31,41-dibromoanilde or 5-bromosalicylic acid-41-bromoanilide, may be present.  The bactericide or bactericides may be kept finely dispersed by the presence of one or more than one specified dispersing agent and, if desired, sodium salt of sulphurous acid.
Patent GB-747885-A (GB)
Title: Improvements in or relating to cam actuated electric make and break switches
IPC: H01H19/02
Filed: 1954-02-18
Abstract: 747,885. Interrupters. BENDIX AVIATION CORPORATION. Feb. 18, 1954 [March 9, 1953], No. 4810/54. Class 38(5) A rotating cam 31 periodically operates an interrupter by raising from engagement with a fixed contact 24, a part 29 of a solid wire or tubular contact member 19 which is anchored at the other end 26 and includes a straight part 28 subject to torsional strain while part 29 is lifted. The interrupter casing is formed from two plates 10, 11 which grip between them three resilient layers 15, 16, 17 which may be of mixed cork and rubber, the plate 16 carrying the fixed contact 24 and terminal lug 23 being held between resilient layers 16, 17, while the fixed end 26 and twisted part 28 of contact 19 is held between layers 15, 16. Contact bounce is reduced by the vibration absorbing effect of the resilient layers, and by making member 19 of fine stainless steel or other tubing to increase its ratio of stiffness to mass. The second terminal 35 is pressed by resilient layers 15, 16 into contact with end 26 which passes through a hole 36 in it. The interrupter is fixed to a bracket 40 by a screw 37.
Patent GB-584788-A (GB)
Title: Improvements in or relating to the production of methylethylketone from 2:3-butyleneglycol
IPC: C07C45/52
Filed: 1943-03-25
Abstract: A continuous process for the production of methyl ethyl ketone comprises heating 2 : 3-butylene glycol under atmospheric pressure in the presence of up to 10 per cent, preferably 5 to 10 per cent by weight of the glycol, of a relatively non-volatile strong acid in the substantial absence of inert diluent or solvent and adding fresh quantities of said glycol at a rate approximately equal to its rate of conversion whilst continuously distilling off the methylethylketone and water as they are formed.  The acids are defined as being those acids relatively non-volatile in relation to said glycol which will substantially completely dissociate in concentrated aqueous solutions as opposed to weak acids which will substantially completely dissociate only at a high degree of dilution.  Acids which may be used include sulphuric, phosphoric, trichloracetic and p-toluene sulphonic acids.  The process may be carried out in a heated reaction kettle fitted with a reflux column to prevent entrainment of glycol by the effluent vapours. In addition to methyl ethyl ketone, small quantities of 3 : 4-dimethyl - D 3 - hexane - 2 - one are formed.  An example is given in which 96 per cent by weight sulphuric acid is employed as dehydrating agent, and a reflux temperature of 73-80 DEG  C. is maintained.
Patent GB-525138-A (GB)
Title: Improved methods for the electro-mechanical recording of sound vibrations
IPC: G11B11/00
Filed: 1939-02-14
Abstract: 525,138. Re-recording sound records. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Feb. 14, 1939, No. 4888. Convention date, Feb. 17, 1938. [Class 40 (ii)] [Also in Group XXXIX] In a method of electro-mechanically recording sound, using a chisel for producing in a carrier depth variations corresponding to the sound vibrations, an original record thus made is scanned and is re-recorded in an identical manner on a similar carrier by the same or exactly similar recording means, the electrical oscillations at the re-recording device being displaced in phase by 180 degrees relatively to the first recording. By this means, distortions in the original record which are probably due to the resistance of the material to penetration of the cutter are nullified Fig. 1 shows a recording system comprising a microphone 10 connected to a pre-amplifier 15, an amplifier 20, and a recorder 25 having a chisel 26 for cutting in known manner, in a film 27, a sound track having both depth and width variations. The track 28 is distorted in such a manner as is indicated in Fig. 2, in which the shape of the full-line curves shows the effect of the record material upon movements of the cutter in recording a sinusoidal wave represented by the dotted curves 46. To compensate for this distortion, a re-recording arrangement such as is shown in Fig. 3 is used. The record 28 is scanned electro-optically, the photo-electric cell 33 being connected to amplifiers 38, 20 which operate a recorder 25 by which the re-recording is effected on a film 42. The amplifiers and the recorder are the same as or exactly similar to those used in the recording system shown in Fig. 1, but the connections between the pre-amplifiers 38 and the amplifiers 20 are interchanged as shown. Thus the phase at the terminals 18, 19 is displaced by 180 degrees relatively to that in the original recording. The required phase displacement may, alternatively, be effected at least in a certain frequency range by interposing a phase-rotation filter between the pre-amplifier 38 and the amplifier 20. In a third method of carrying out the invention, during the scanning and re-recording of the first record the carrier is moved in a direction opposite to that in the original recording. The final record must then be moved, during reproduction, in a direction opposite to that in which it is recorded.
Patent GB-553785-A (GB)
Title: Improvements in and relating to hinged doors, lids and the like
IPC: F42B39/00
Filed: 1942-02-12
Abstract: 553,785. Hinges. FERRO-STEEL STRUCTURES, Ltd., SAADY, M., and VANNECK, V. P. BOURNE-. Feb. 12, 1942, No. 4910/43. Divided out of 552,543. [Class 65 (ii)] [Also in Group XVIII] A hinged cover 3 for a container 1 comprises a bracket 20 fixed to 1 and carrying a hinge pin 21 on which is mounted by means of a slot 30 a bar 22 fixed to 3 by a bracket 7. Pivoted at 23 on 22 is a locking member 25 provided with a recess 29 coacting with the point 28 of a screw carried by a yoke 24 swinging on 21. The member 25 carries a fixed handle 12, which, when moved to the position of Fig. 1, brings 25 into engagement with 28, and carries the yoke past the dead centre, to force the cover 3 down on the container. Movement of. the handle in an anticlockwise direction releases the lid.
Patent GB-694341-A (GB)
Title: Improvements in or relating to means for securing prefabricated roof elements to buildings
IPC: E04B7/04
Filed: 1951-02-28
Abstract: 694,341. Roofs. BLACKBURN (DUMBARTON), Ltd., and ROSS, G. S. Jan. 14, 1952 [Feb. 28, 1951], No. 4917/51. Class 20(iv). Prefabricated wooden trussed purlins, e.g. of the Warren girder type, are erected to support the roof of a building having its walls made from poured concrete, the purlins being bolted to angles 1, 5 and tie plates 8, 9 which are imbedded and anchored by rods 3, 10, or 6, 11 in the walls during pouring to project inwardly from each gableended wall and from both faces of each party wall, each plate 8, 9 being placed above an angle 1, or 5 and in the same vertical plane. The lower member 7 of each purlin is supported on the horizontal flanges of the corresponding pair of angles and is bolted together with the lower end of the respective vertical truss members 7<SP>2</SP>, or 7<SP>3</SP>, to the vertical flanges of the angles. The upper end of each vertical member is bolted with the respective end of an upper member 7<SP>1</SP> of the purlin to a plate 6, or 11. A wooden wall plate is fixed along each longitudinal wall, the roof covering comprising either panels with rafters members which are fixed to the upper members of the purlins or separate rafters which are secured to the purlins to receive a covering laid on as a separate operation. Specification 694,340 is referred to.
Patent GB-1435054-A (GB)
Title: Dihydroanthracene derivatives
IPC: C07D307/88
Filed: 1974-02-04
Abstract: 1435054 Spiro piperidine/anthracenes IMPERIAL CHEMICAL INDUSTRIES Ltd 10 Jan 1975 [4 Feb 1974] 05018/74 Heading C2C [Also in Division A5] The invention comprises compounds of formula and their pharmaceutically acceptable acid addition salts, wherein R<SP>1</SP> is H, C 1-10  alkyl, C 3-18  alkenyl, C 4-7  cycloalkyl-alkyl (optionally nuclear-substituted by C 6 -C 10  aryl or by up to 2 C 1-3  alkyls), C 4-10  arylalkyl (optionally nuclearsubstituted by 1-3 halogen atoms or C 1-3  alkyls), C 4-8  dialkylaminoalkyl or C 2-5  hydroxyalkyl; R<SP>2</SP> . . . R<SP>5</SP> are each H, halogen, OH or (up to C 5 ) alkyl, haloalkyl, alkoxy, alkanoyloxy or hydroxyalkyl, or C 7-10  aroyloxy (optionally nuclear-substituted by 1-3 halogen atoms or C 1-3  alkyls); and R<SP>6</SP> and R<SP>7</SP> are each H or C 1-3  alkyl, or R<SP>6</SP> may be OH or C 1-3  alkylthio or alkanoyloxy, or CR<SP>6</SP>R<SP>7</SP> is CH 2  or CO. In examples, these compounds are prepared by (1) reacting a corresponding 9,9-bis-(2-methylsulphonyloxyethyl)dihydroanthracene with R<SP>1</SP>NH 2 ; (2) reacting the N-cyano-analogue with LiAlH 4  (for R<SP>1</SP>= H) ; (3) N-alkylation; (4) reducing 10-oxo to 10-oxy, or oxidizing 10-oxy to 10-oxo; (5) reducing 10-oxy to the 10-unsubstituted compound, or oxidizing the latter to 10-oxo; (6) reacting 10-oxo with LiMe to give the 10-methyl-10-oxy compound and further reacting the latter with HCl to give the 10- methylene compound; (7) replacing 10-oxy by 10-ethylthio; (8) converting a substituent MeO group to HO, and esterifying the latter; (9) making the 10-oxy compound by reducing the analogous (spire)-2<SP>1</SP>,6<SP>1</SP>,10-trione (Q). Starting materials and intermediates otherwise prepared are dihydroanthracenes and anthrones containing 10,10-bis-(allyl, 2-hydroxyethyl or 2 - carboxymethyl) groups, and monoethylamides of such (anthrone)-dicarboxylic acids; 1,7 - dichloro - and 1 - methoxy - 6 - trifluoromethylanthrones; 1 - methoxy - 9,9 - dimethyl- 9,10 - dihydroanthrocene; spiro - 2<SP>1</SP>,6<SP>1</SP>,10- triones analogous to (Q), above, but containing O instead of NR<SP>1</SP>; 3 - (m - XC 6 H 4 ) - 7 - MeO- phthalide and 2 - (m - XC 6 H 4 CH 2 ) - 6 - MeOC 6 - H 3 CO 2 H where X is H or CF 3 , as well as the methyl ester (X=H); 2-PhCH 2 -6-MeOC 6 H 3 Z where Z is Ac or CMe 2 OH; and 3-(mF 3 C 6 H 4 CHOH)C 6 H 4 OMe. Therapeutic compositions having analgesic and in some cases sedative activity comprise compounds of the above formula. They may be administered orally, parenterally or rectally, and may contain further active ingredients.
Patent GB-1015421-A (GB)
Title: Improvements relating to domestic washing machines
Inventor: HAMMOND RICHARD VAVASOUR
IPC: D06F29/00
Filed: 1962-02-09
Abstract: 1,015,421. Washing and drying machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan.24, 1963 [Feb. 9, 1962], No. 5121/62, Heading D1A. A washing machine with separate washing and spin tubs has valve means H with two or more operating positions through which fresh water and/or wash liquid can pass, depending on the operating position, from (a) the water supply to the wash tub, (b) the spin tub to the wash tub, (c) the supply to the spin tub, (d) the spin tub to drain, (e) the wash tub to drain. Discharge pumps F, G are provided for the spin and wash tubs respectively. A first embodiment (Fig. 1) has a valve H with three operating positions. In the first position, flows (a) and (b) can take place, the latter through a non-return valve L. In the second position, flows (c) and (d) can take place, giving rinsing in the spin tub, and after turning off the supply, spin-drying can be performed. In the third position, flows (c), (b) and (e) can take place, enabling the last load to be rinsed and spin-dried while the wash and spin tubs are being emptied. In the first two positions, wash liquid from pump G is recirculated to the wash tub through a filter tray K. A knob for controlling valve H has a mark indicating the most significant flow in whatever position the knob is in, viz. to wash tub, spin tub or drain. The two drain outlets of valve H are connected to the two arms of a bifurcated pipe which leads to drain, one arm having a non-return valve. Water flows from the supply to valve H through a hose incorporating a restrictor device, a by-pass, a non-return valve and an air gap. The Specification also describes the construction of a suitable valve H (Fig. 4, not shown), which forms the subject matter of Specification 1015422 which is referred to. A second embodiment (Fig. 3, not shown) differs from the first in that the valve has two operating positions and one outlet to drain, the pipe from the pump G to valve H has a non- return valve and the recirculation with filtering is absent. Flows (a) and (b) can take place in the first operating position, and flows (c) and (d) in the second. Flow (e) can take place in either, a separate device being provided to control pump G.
Patent GB-890871-A (GB)
Title: Improvements in or relating to fastening devices comprising ties provided with apertured members
Inventor: LEFNAER OTTO
IPC: B65D63/10
Filed: 1960-02-15
Abstract: 890,871. Releasable fastenings. WURTTEMBERGISCHE ALLPLASTIK G.m.b.H. Feb. 15, 1960, No. 5240/60. Class 44. A fastening device comprises a tie provided with knobs 3 and stems 4 and an apertured member 5 at one end of the tie, the knobs and stems being arranged alternately, the knobs being all of substantially equal diameter, the stems being all of substantially equal thickness, and the apertured member having one or more apertures, the or each of which has a large portion 6 and one or more small portions with a constriction between the or each small portion and the large portion, the dimensions being such that the knobs can be passed through the large portion but not through the small portion, or any of the small portions of the or each aperture and the stems can be pressed laterally through but will not pass freely through the or each constriction of the or each aperture. In the construction shown each of the knob-like portions is of hemispherical shape the base being substantially perpendicular to the stems and facing towards the member 5. Thus the cord may easily be pulled through the aperture portion 6. The aperture has two small portions 7, 8; the portion 7 is of elongated shape and the portion 8 is of circular shape. Both are connected to the large aperture 6 by one of the constrictions 9, 10. If the tie after being passed round an object has one of its stems engaged with the aperture portion 7, the end can again be passed through the portion 6 and another stem engaged with the portion 8. The member 5 is also formed with a handle 11 for ease in handling. In a modification the member 5 is extended and has a second aperture having a large portion which is joined by the constriction to a small portion. The end of the tie after being passed through the large portion 6 and locked in the portions 7, 8 is passed through the large portion of the second aperture and locked in the associated small portion to form a carrying loop. In a further modification the opposite end of the cord to that having the member 5 is formed with a button which can be passed through the large portion 6 and locked in a small portion to join two devices together.
Patent GB-402379-A (GB)
Title: Liquid measuring apparatus with at least one measuring vessel for connection to a storage tank
IPC: G01F11/28
Filed: 1932-02-22
Abstract: 402,379. Delivering measured quantities of liquids. RYSER, J., Visp, Wallis, and REBER, R., Dietikon, Zurich, both in Switzerland. Feb. 22, 1932, No. 5255. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 22, 1932]. [Class 106 (v).] The quantity measured is adjustable by varying the height of a float air valve 22 on an air escape pipe 21 passing through the cover 2 of the measuring chamber 1 and attached by an arm 24 to a rack 25 engaged by a pinion 27 mounted in bearings 26 on the cover. The base 4 of the glass measuring chamber is detachably secured by a catch 6 and comprises passages 18 adapted to connect the measuring chamber to discharge ports 17 in a valve tube 8 rotatably mounted in the base and cover and provided with a handle 11. A partition is arranged in the valve tube 8 above the ports 17 and liquid supplied at 15 passes through ports 19 in the tube to the measuring chamber until a float 23 closes the air escape valve 22. On turning the handle 11 from the position shown a cam 12 opens an air admission valve in the cover, the ports 17 are brought into register with the outlet passages 18 and the supply inlet 15 is closed. The rack 25 moves against a scale on the measuring vessel. In a modification the float valve 22 may be stationary and the discharge port adjustable vertically.