baber/WOPTO huggingface dataset:
Patent GB-1261445-A (GB)
Title: Method of electrophotography and photosensitive elements
IPC: G03G13/056
Filed: 1969-02-11
Abstract: 1,261,445. Photo-sensitive element. KATSURAGAWA DENKI K.K. 11 Feb., 1969 [14 Feb., 1968], No. 7230/69. Heading H1K. [Also in Division G2] A photo-sensitive element comprises a transparent highly insulative layer, a photo-conductive layer capable of exhibiting persistent internal polarization and a layer of screen structure, the layers being bonded together in that order. The use of a screen enables halftone images to be reproduced and also the "edge-effect" to be eliminated. The element preferably includes a transparent insulating support with a transparent conductive layer thereon and optionally an insulating layer interposed between the conductive layer and the photo-conductive layer. The screen is interposed between the transparent support and the conductive layer. In an embodiment an element is made from a glass substrate having a photographic emulsion thereon. The emulsion is exposed to a master screen having a line structure and then developed. A layer of Al is evaporated on, followed by an evaporated layer of Se-Te alloy and then a solution of polycarbonate resin. It is possible to use a coloured photographic emulsion to form the screen such that the absorption end of the emulsion is in the sensitive range of the photoconductive layer. Thus the intensity of the screening effect can be emphasized or diminished according to the wavelength of the radiation incident on the screen and hence MoirÚ effects can be eliminated when copying printed matter. The photo-conductive layer may be Se, CdS, SeAs, ZnO or CdSe whilst the transparent conductive layer may be Al, SnO 2  or Cu 2 I 2 . The transparent insulating layer may be glass. Charging of the element may be accomplished by corona discharges on both sides of the elements or removable transparent electrodes either on or a short distance from the element. The element may be cylindrical.
Patent GB-540795-A (GB)
Title: Improvements in the heat treatment of metal alloys
IPC: C22C9/06
Filed: 1940-04-22
Abstract: 540,795. Heat-treating alloys. PFEIL, L. B. April 22, 1940, No. 7255. [Classes 72 and 82; (i)] In the heat treatment of alloys consisting principally of nickel and copper and containing a dispersible constituent which, when the alloy is heated, goes into a solid solution that is stable or meta-stable over a wide range of temperature, the alloy is heated to cause the constituent to go into solution, cooled to a temperature that is lower than this but above that at which appreciable precipitation of the dispersible constituent begins, quenched or reheated to bring about precipitation-hardening. An alloy containing 4-15 per cent. of tin, 4-20 of nickel and 0-20 of zinc or other element, the rest copper is soaked at 700-850‹C., cooled to a temperature within the range 550-650‹C., quenched and then re-heated. The treatment of an alloy containing 50-85 per cent. of nickel 45-10 of copper and 2-4 of aluminium with or without 0.25-1.0 of titanium, and when there is lead contamination 0.05-0.5 of zirconium, is referred to.
Patent GB-1419022-A (GB)
Title: Packaging
IPC: B65D73/00
Filed: 1973-02-14
Abstract: 1419022 Cartons attached to cards TAYLOWELtd 17 Jan 1974 [14 Feb 1973] 7257/73 Heading B8C A packaging unit, e.g. for cosmetics, comprises a tubular or box-like carton preferably including end closures, and a back-card slit to define a pair of oppositely-directed tongues which pass through suitably sized and positioned slits in the back panel of the carton to lie substantially in the plane of the back panel of the carton to retain the carton on the back-card.
Patent GB-286728-A (GB)
Title: Improvements in electromagnetic railroad switch-operating devices
IPC: B61L5/06
Filed: 1928-03-08
Abstract: 286,728. Guenee, A. C. J. March 11, 1927, [Convention date]. Electromagnets.-Railway points are driven by an electromagnet which is reversed by automatically changing the direction of current in the armature A, the armature poles C being of crescent-shape to vary the saturation at different positions. The armature shaft E carries a cam engaging a rod and lever to reverse a switch carrying three contacts M, N, 0. Cams P, Q on the shaft raise the inoperative contact level with the rings I before the contact is moved. The shaft also carries with lost motion a crank D connected to the points and to a toggle spring L. The shaft E passes through the core K of the field winding J. A hand switch is used to re-energize the circuit after reversal.
Patent GB-1504111-A (GB)
Title: Carbonless manifold business forms
IPC: B41L1/36
Filed: 1976-02-24
Abstract: 1504111 Pressure-sensitive record sheets MOORE BUSINESS FORMS INC 24 Feb 1976 [24 March 1975] 07298/76 Heading D2B A pressure-sensitive record sheet for use in a manifolded set of carbonless copying forms utilising at least two chromogenic reaction systems, each system comprising a colour former and a colour developer and the systems being such that the colour former of one system is incapable of reacting with the colour developer of another system to produce a coloured mark, comprises a sheet coated on one side with an admixture of a colour former of one system and a colour developer of another system, the colour former being in a transferable form and the colour developer being in a non-transferable form. The sheet can act both as a record-receiving CF sheet and as a colour-transfer CB sheet.
Patent GB-1578322-A (GB)
Title: Oil fired heater unit having a burner for heavy fuel oil
IPC: F23D11/44
Filed: 1976-02-24
Abstract: Before injection through a nozzle (16), the heavy fuel oil is heated to the required temperature, e.g. 120 DEG C, in a heat exchanger (12) which is in heat exchange with a combustion chamber of the heating device. The heat exchanger can have the form of a ring, in which a part (24, 26, 28) of the oil line is cast in. In order to prevent the oil being heated too greatly, the ring contains a cooling coil (32, 34). If the oil temperature rises above a predetermined value, a temperature sensor (38) on the oil outlet (28) brings about the opening of a valve (40) which regulates the quantity of coolant. It is consequently possible, in the case of heating the oil by the heat from the combustion chamber, to avoid overheating of the oil and to keep the oil temperature within a predetermined range. During non-use of the oil burner, a heating element (42) serves to keep the oil in the oil line hot. <IMAGE>
Patent GB-1135560-A (GB)
Title: Steroid compounds and their preparation
IPC: C07J5/00
Filed: 1967-01-30
Abstract: 1,135,560. Steroids. G. D. SEARLE & CO. 16 Feb.. 1967 [18 Feb., 1966], No. 7491/67. Heading C2U. Novel compounds of the formula wherein R 3  represents 3 alkyl radicals, which are the same or different, R<SP>1</SP> is a hydrogen atom, or an hydroxyl or alkanoyloxy radical; R<SP>11</SP> is a hydrogen atom or a methyl radical; R<SP>111</SP> is an alkyl radical; X is a hydrogen or halogen atom; Z is a methylene, #-hydroxymethylene or carbonyl radical; the dotted lines in Ring A each represent an optional double bond; and the wavy line in the 16-position on the steroid nucleus signifies that the substituent represented by R<SP>11</SP> can be either the α - or #-configuration are obtained by contacting the corresponding 21- OH compound with a trialkylsilylating agent, e.g. trimethylchlorosilane, hexamethyldisilazane or bis-(trimethylsilyl)-acetamide.
Patent GB-1522022-A (GB)
Title: Length measurement
IPC: G01B7/04
Filed: 1976-02-10
Abstract: 1522022 Measuring length electrically  GRUNDY & PARTNERS Ltd 10 Feb 1976 [22 Feb 1975] 7517/75 Heading G1N [Also in Division G4] The length of a cable paid out from a winch having a drum on which the cable is wound in a regular fashion is determined by producing a pulse for each given fractional rotation of the drum, multiplying the pulses by a factor dependant on the number of layers of cable on the drum and summing the multiplied pulses. As used on a trawler each trawler winch is provided with a drum motion pulse generator and processing circuit, each generator comprising a pair of inductive proximity switches 11, 12 which produce a pulse each time a steel insert 13 on the drum flange passes thereby on line 17 and a further pulse on line 18, 19 dependant upon the direction of motion of the drum. Each motion pulse on line 17, Fig. 3, activates a clock enable 23 which starts clock 24 the relatively rapid repetitive pulse output from which is routed by gate 124 to up-counter 26 and an accumulative register 22. When the count of 26 is equal to the contents of a layer constant memory 27 comparator 28 provides an output to clock inhibit 30 which-stops clock 24 and clears counter 26 so that register 22 stores a multiplied motion pulse which is either added or subtracted from register 22 dependant on whether the warp is being plaid out or wound in as determined by a signal from up/down level hold 20. Further motion pulses repeat the procedure. A layer factor change detector 33 counts the leading edges of the motion pulses and when an integral number of NoSo pulses (No is number of warp coils per layer and So is the number of pulses per drum revolution) have been counted activates the layer constant memory update counter 34, clock enable 23 and gate 124 which routes the clock pulses from 24 via update counter 34 to memory 27 to change the value thereof. Counter 34 counts #K pulses where #K = 2#r#3/So where r is the radius of the warp and then resets itself. The trailing edge of the motion pulse is then multiplied by the new layer factor. The outputs from the port and starboard registers 22 may be compared in a difference circuit, Fig. 4 (not shown), which operates a centre zero meter.
Patent GB-779403-A (GB)
Title: Improvements in or relating to piezo-electric resonators
Inventor: CLIFFORD FREDERICK GEORGE
IPC: H03H9/13
Filed: 1953-03-18
Abstract: 779,403. Piezo-electric crystals. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 25, 1954 [March 18, 1953], No. 7527/53. Class 40 (8). A piezo-electric resonator is provided with an electrode arrangement which excites it into simultaneous resonant vibration at two different minor resonant frequencies. The resonator may be a rectangular X-cut quartz plate with electrical axes X, Y, Z, three electrodes 2, 3, 4 being arranged on either major face and interconnected as shown. The crystal has a major resonance corresponding to a longitudinal vibration and two minor resonances f 1 , f 2  which have a frequency of about twice the major resonant frequency when the Y/Z dimension ratio is equal to 2. With the electrode system described the major resonance is surpressed and the difference frequency (f 1 -f 2 ), which is about one-tenth the major resonant frequency, used e.g. to drive a clock motor.
Patent GB-991988-A (GB)
Title: Novel 5-acyloxyuracils
IPC: C07D239/60
Filed: 1963-02-25
Abstract: The invention comprises 5-acyloxyuracils of formula <FORM:0991988/C2/1> where R is a nitrogen-containing, unreduced heterocyclic ring system of formula <FORM:0991988/C2/2> in which a is -CH= or -N= and b is =CH-CH=, =CH- or =C(CH3)-, e.g. pyridine or pyrazole.  They are prepared by acylating 5-hydroxyuracil with RCOX, X being a proton-accepting radical such as chlorine, or a reactive amide group formed from RCOOH and 1,11-dicarbonydimidazole or the corresponding pyrazole, triazole or tetrazole. The products inhibit antibody formation.ALSO:Pharmaceutical compositions for inhibiting antibody formation comprise 5-acyloxyuracils of formula <FORM:0991988/A5-A6/1> where R is a nitrogen-containing, unreduced heterocyclic ring system of formula <FORM:0991988/A5-A6/2> in which a is -CH= or -N= and b is =CH-CH=, =CH- or =C(CH3)-, e.g. pyridine or pyrazole.  The uracils may be combined with 6-substituted purines with anti-immune activity such as 6-mercaptopurine.  Oral, parenteral and topical preparations may be formulated, e.g. tablets, capsules, cachets, ampoules, suppositories, powders, granules, solutions, suspensions or ointments.
Patent GB-936255-A (GB)
Title: Combined motor and compressor units for use in heat pumps
Inventor: GREENWOOD KENNETH
IPC: F25B31/02
Filed: 1961-03-02
Abstract: 936,255. Cooling dynamo-electric machines. JOSEPH LUCAS (INDUSTRIES) Ltd. March 1, 1962 [March 2, 1961], No. 7598/61. Class 35. A combined motor and compressor unit for a heat pump has the motor 2 mounted vertically above the compressor 3 in a cylindrical casing 1. The motor has an impeller 5 on the rotor shaft below the motor and a compressor inlet 6 above the level of the lower end of the motor. The casing inlet 4 is disposed axially above the motor and an annular baffle 7 defines an annular gap 8. The arrangement being such that in use a portion of the refrigerant entering inlet 4 will flow through the motor 2 and then upwardly to the inlet 6 around the motor whilst the remainder will flow through the gap 8 around the upper part of the motor to the inlet 6.
Patent GB-238811-A (GB)
Title: Improvements in vehicle cushion tires
IPC: B60C7/10
Filed: 1925-03-20
Abstract: 238,811. Findling, J. March 20, 1925. Non-metallic elastic bodies and cores.-A resilient filler adapted to fit within a tyre cover, is formed by winding a continuous rubber or like sheet round a straight central core 10, which is preferably formed of rubber, the sheet being wound in a spiral manner so as to form a conical recess 12 at one end and a similar projection 13 at the other, the free end of the sheet being secured to the filler body. The ends of the filler are brought together so that the projection 13 fits within the recess 12, the ends so fitted being then secured together. The filler is covered with a tough fabric covering 14, the ends of the covering 14 wrapping round the tyre beads 15, as shown in Fig. 3. In a modification, the filler comprises a tubular sheet of rubber or the. like, the sheet being rolled upon itself.
Patent GB-331869-A (GB)
Title: Improvements in or relating to preparation of organo metallic compounds
IPC: C07F9/00
Filed: 1929-03-08
Abstract: 331,869. Barber, H. J., and May & Baker, Ltd. March 8, 1929. Samples furnished. Organo arsenic and antimony compounds are prepared by condensing one molecular proportion of an arsenic or stibinic acid with four molecular proportions of an organic mercapto compound. Of the four molecular proportions of the latter, two serve to reduce the pentavalent arsenic or antimony to the trivalent form, which then condenses with the remaining two molecular proportions to form the thioarsenite or thioantimonite. The reactants may be aliphatic or aromatic, and the reaction proceeds in acid, neutral, or alkaline solution. Examples are given of the preparation of (1) 8-acetylamino-3-hydroxy-1 : 4-benzisoxazine-6-arsinic acid and sodium thioglycollate; (2) N-phenylglycinamide - 4 - dicarboxymethylthioarsenious acid from N-phenylglycinamide-4-arsinic acid and sodium thioglycollate ; (3) 3-amino-4- hydroxyphenyl - dicarbamidomethylthioarsenious acid from 3-amino-4-hydroxyphenyl-arsinic acid and thioglycollamide; (4) 4-aminophenyl-dicarbethoxymethylthioarsenious acid from 4-aminophenyl-arsinic acid and ethyl thioglycollate; (5) 3-amino-4-hydroxyphenyl-di - # - amino - carboxyethylthioarsenious acid from 3-amino-4-hydroxyphenyl-arsinic acid and cystein hydrochloride; (6) 8.acetylamino-3-hydroxy-1 ; 4 - benz isoxazine-6-di- #-hydroxyethylthioarsenious acid from 8-acetylamino-3-hydroxy-1 : 4-benzisoxazine-6-arsinic acid and #-hydroxyethyl mercaptan; (7) 2-hydroxy-5- acetylaminophenyl - dicarboxymethylthioarsenious acid from 2-hydroxy-5-acetylaminophenyl-arsinic acid and thioglycollic acid; (8) 4-aminophenyldicarbamidomethvlthioantimonious acid from 4- aminophenyl-stibinic acid and thioglycollamide; (9) 4 - chlorophenyl - dicarbamidomet.hylthioantimonious acid from the ammonium salt of 4-chlorophenyl-stibinic acid, prepared bv dissolving 4- chlorophenyl-stibinic acid or 4-chlorophenyl-tetrachlorstibinic ammonium chloride in ammonia, and thioglycollamide.
Patent GB-1125683-A (GB)
Title: Process for the production of azo dyestuffs containing cyano groups
Inventor: GOTTSCHLICH ALOIS
IPC: C09B29/44
Filed: 1967-02-17
Abstract: 1,125,683. Aao dyes containing cyano groups. FARBENFABRIKEN BAYER A.G. 17 Feb., 1967 [17 Feb., 1966; 12 Jan., 1967], No. 7722/67. Heading C4P. Azo dyes containing cyano groups are obtained by reacting an azo dye of the formula X-A-N=N-K wherein A is an aromatic-carbocyclic radical, X is a halogen in an o-position to the azo group, and K is the radical of a coupling component, with a metal cyanide in an organic medium with the exchange of the halogen substituent X for a CN substituent. The invention also comprises azo dyes of the formula wherein Y, is a group NO 2 , CN, CF 3 , R 1 , OR 1 , wherein R 1  is an optionally substituted alkyl, aralkyl or aryl radical, R 2  and R 3  are H or substituents which together may also form part of a heterocyclic ring, R 4  is H, OH, R 1 , OR 1 , or NR 2 R 3 , R 9  is an acyl group, and R 10  is H, an optionally substituted alkyl, cycloalkyl, aralkyl or aryl radical or the group R 9 ; R 0 and R 10  may together also form part of a heterocyclic ring, and Z 1  is H or a substituent. These dyes may be obtained by the above process. Examples are given for the preparation of the dyes. They are useful for dyeing hydrophobic materials.
Patent GB-195090-A (GB)
Title: Improvements in or relating to the distillation of mineral oils
IPC: C10G7/00
Filed: 1923-03-19
Abstract: 195,090. Red River Refining Co., Inc., (Assignees of Schulze, J. E.). March 18, 1922, [Convention date]. Hydrocarbons, distilling; bulk evaporators.-In distilling mineral oils such as petroleum, shale oils, distillates and topped or residual oils, particularly to obtain lubricating oils, the distillation is carried out under reduced pressures below an absolute pressure of 25 mm. of mercury and preferably below about 5 mm. of mercury, and the distillate is collected in fractions determined by the physical characteristics, such as viscosity, flash point, fire point, &c. Superheated steam may be passed through the liquid during distillation. A horizontal cylindrical still 10 provided with cross braces 12 and peripheral ribs 11 interrupted at the base 13, is connected through a condensing coil 16 immersed in a steam chest 17 and a baffled chamber 20 with distillate receivers 27 and is evacuated by a pump P'. Steam from a boiler 37 and superheater 40 is injected into the still through a perforated pipe 42. Steam and light-oil vapours passing from the chamber 20 are condensed in a coil 28, in a tank 29 and pass into a tank 30. Refrigerated brine is passed through coils 34, 35 in the tanks 29, 30. Samples of distillate are withdrawn through a small chamber 44 adapted to be opened to the atmosphere. A second vacuum pump P<2> enables the vacuum to be restored in either of the receivers 27 after the distillate has been withdrawn.
Patent GB-185440-A (GB)
Title: Improvements in or relating to refuse collecting machines
IPC: E01H1/04
Filed: 1921-03-12
Abstract: 185,440. Hollick, W. J. March 12, 1921. Rotary elevators; feeding-devices for endlesschain elevators.-Relates to refuse-collecting machines of the kind in which the refuse is swept by a rotary brush into the lower buckets of a disc or wheel-shaped elevator and is discharged from these at the upper part of the elevator. The invention consists in mounting the buckets on pivots, at right angles to the plane of the elevator disc, round which they are swung to discharge their contents as they approach their uppermost positions, and in adapting them to resume their normal position during their subsequent descent. In the form shown in Figs. 1 and 2, as applied to a machine of the kind described in Specification 166,270, the rotary elevator comprises a transversely-arranged dished annular disc 9, inclined at about 75‹ to the horizontal, and driven by bevel gearing engaging an annular rack 25. The disc is flanged at 10, and carries at right angles to its face a number of pivot pins 12 on each of which is mounted a bucket 11 having overhanging covers 19 and lipped inner ends 14, normally engaging vanes 15 fixed to the disc. On approaching the uppermost position, a projection on each bucket strikes a. fixed stop 18 on the machine, and causes the bucket to swing over until it encounters a second fixed stop, thereby discharging the contents through the centre of the disc into a receptacle, or to the buckets of an endless chain elevator 22. The buckets are weighted at 13 to cause them to resume their normal position during descent. A modification is described in which the elevator comprises a ring of buckets each mounted on a hinge lying in or nearly in the plane of the ring.
Patent GB-213603-A (GB)
Title: Improvements in and relating to control systems for electric circuit breakers
IPC: H02H11/00
Filed: 1924-03-28
Abstract: 213,603. British Thomson-Houston Co., Ltd., (Assignees of Bliss. E. F.). March 30, 1923, [Convention date]. Cut-out arrangements.-In an automatically reclosing system for a number of circuit-breakers which are reclosed one at a time so as to economize reclosing batteries, each circuitbreaker in opening closes back contacts which, from the local battery, supply a time relay interconnected with control relays having contacts so connected as to ensure that one only of the control relays may be operated at a time to effect the operation of the closing means controlled thereby. In the arrangement shown in Fig. 1 for three circuit-breakers held latched in the closed position until tripped by overload, and reset by the coils 4, there is associated with each circuit-breaker a time relay 13 energized, together with a notching relay 27, from the battery when the back contacts 16 of the circuit-breaker are bridged. The time relay closes the energizing circuit 11 of its first control relay 9 from the battery. The closure of the relay 9 by bridging the contacts 7 prepares the batteryenergized reclosing circuit, through the reclosing coil 4, which is completed when the corresponding second control relay 10 is closed and its contacts 8 bridged. The second relay is closed by the coil 18 connected to earth through the contacts 7 and to the unearthed pole of the battery through any contacts 22 which may lie to the left of it and through the contacts 19, as shown. It is maintained closed independently of the contacts 19 by the bridging of contacts 20. Thus the energizing circuit of each coil 18 includes the contacts 19 of all the relays 10, so that, if any one of the control relays 9 is energized, the control relay 10 associated therewith is not energized if any other of the control relays is energized. In order to deal with the possibility of two or more of the control relays 10 being closed together by the simultaneous energization of two or more control relays 9, the control relays 10 are arranged, by the wiring scheme shown, to operate in sequence from left to right, in these circumstances. Any individual circuit-breaker is reclosed a predetermined number of times if the reclosures occur at less than predetermined intervals (otherwise the notching relay returns faster than it progresses) and, thereafter, by opening the switch 26, which must be reset by hand, the circuit-breaker is maintained open. In a modification, the relays 10 are dispensed with, additional contacts are provided on the relays 9 and the circuit of each closing coil 4 includes the contacts of a timerelay common to all the closing coils 4 to ensure that one only of the closing coils is energized when the contacts of more than one time relav 13 are closed at the same instant. In a further modification, the common time-relay referred to above is dispensed with by providing dual contacts on the control relays one set of which is opened before the other.