baber/WOPTO huggingface dataset:
Patent GB-961875-A (GB)
Title: Preparation of alkoxy amides
IPC: C07C233/16
Filed: 1961-11-17
Abstract: Compounds of the formula R1CONHCH2OR, where R is alkyl or alkenyl or up to 8 carbon atoms or alkoxyethyl, alkyl portions having 1-8 carbon atoms, and R1 is an aliphatic radical containing a single polymerizable double bond, are prepared by reacting R1CONH2 with formaldehyde in the presence of from 25 to 100 grams per mole of amide of a polar solvent (which may be the alcohol ROH) while maintaining the pH between 7.5 and 11 until substantially all of the amide has reacted with the formaldehyde, then adding at least 100 grams (per mole of amide) of ROH, readjusting the pH to 2.5-7, and heating in the presence of a polymerization inhibitor until substantially all of the methylol groups have been esterified. Suitable solvents include dioxan, tetrahydrofuran, dimethylformamide, dimethylacetamide, 1,2-dimethoxyethane, dibutyl ether and methylene chloride. Specified amides R1CONH2 are acrylamide, methacrylamide, a -cyanoacrylamide, a -chloroacrylamide, crotonamide and the mono- and diamides of itaconic and fumaric acids. Specified alcohols ROH are methyl, ethyl, propyl, isopropyl, butyl, isobutyl, amyl, octyl and allyl alcohols and their monoethers with ethylene glycol.  Reference has been directed by the Comptroller to Specification 780,284.
Patent GB-1212283-A (GB)
Title: Photosensitive compositions
Inventor: PETRO VICTOR P
IPC: G03C1/675
Filed: 1968-08-29
Abstract: 1,212,283. Photographic non-silver printout or photo-developable compositions. HORIZONS. Inc. Aug.29, 1968 [Dec.26, 1967], No.41343/68. Heading G2C. A non-silver, photographic print-out or photodevelopable composition which may be heat-fixed contains (1) one or more dye-forming compounds of the formula:- wherein R 1  and R 2  are each hydrogen or an alkyl radical; each Ar is a p-phenylene, naphthylene or diphenylene radical; and R 3  and R 4  are each H, alkyl or aryl; (2) one or more organic halogen compounds of the formula ACQ 3  where Q is Cl, Br or I and A is H, Cl, Br or I, alkyl or substituted alkyl, aryl, or substituted aryl or aroyl; and (3) at least one thiol, pyrazolone or acetanilide which forms a coloured image by reaction with a compound (1) above when the composition is exposed and developed. The presence in the composition of a thiol gives a blue image, a pyrazolone gives a red to violet image and an acetanilide gives a green image. By using a combination of colourforming compounds, a neutral or black image may be obtained. Representative specified compositions contain 1:1-bis-(p-dimethyl-aminophenyl) ethylene and iodoform and as colour-forming compounds, 2-mercapto-acetanilide (as a thiol), 1-phenyl-3- amino-pyrazol-5-one or acetoacetanilide. Also present are 2:6-di-t-butyl-p-cresol, 4-picoline- N-oxide, triphenylstibine and as a binder styrene in benzene.
Patent GB-1124448-A (GB)
Title: Pcm switching arrangement
IPC: H04Q11/04
Filed: 1966-09-15
Abstract: 1,124,448. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. 15 Sept., 1966 [15 Sept., 1965], No. 41360/66. Heading H4K. Characters received in PCM links SC1-SC12 are set up on shift registers SR1-SR288 being demultiplexed from the 24 time slots of each link, characters for transmission over the PCM links being set up on shift registers OSR1- OSR288 to be read out in the appropriate link time slots, connection between any receiving register SR and any transmitting register OSR being made by way of a three-stage non-blocking multiplex highway switching network. The first and third stages of the network comprise 12 x 2 cross-point matrices for the outlets and inlets of each link-register set. The centre stage comprises two 12 x 12 crosspoint matrices and should one of these matrices fail the remaining one will give full access but blocking will occur. A common control processor, clock circuits, scanner and channel stage register, and stores with associated network access decoders, Figs. 4 and 5, (not shown), control and effect connections across the network. The link circuits 1 to 11 provide connections to other exchanges. The link 12 serves 12 local terminals and 12 circuits such as registers; the channels of link 12 being connectible to any of the terminals or circuits over a multiplex switch. Changes in the on-hook, off-hook condition of channels, evidenced by the supervisory bit, are detected by the scanner which, on a calling condition, instructs the processor to seize a register. The processor provides a free time slot and by way of the store-decoder complex connects the stores SR, OSR of the calling channel with the stores OSR, SR, respectively, of the channel in link 12 serving the register. The register writes a dial tone character in its store SR which in the next recurrence of the time slot chosen for the connection is transferred bit by bit to the store OSR of the calling channel in the next occurring time slot of which the character is read out to the calling channel. The dial tone character is read out repeatedly until a digit is received the character representing which is moved from store to store and read out to the register. Given the dialled requirements the register instructs the processor which disconnects the dialling paths over the network and replaces them with ringing connections, a suitable ringing circuit being connected over the link 12. Connections between calling and called channels are set up on reply.
Patent GB-1016652-A (GB)
Title: Quaternary ammonium compounds and methods for making same
IPC: C07D251/44
Filed: 1962-11-02
Abstract: The invention comprises compounds of the formula <FORM:1016652/C2/1> wherein R1 represents a halogen atom, an alkoxy, aryloxy, alkylthio or arylthio group, or a group -NR3R4 in which R3 and R4 represent hydrogen atoms, alkyl, hydroxyalkyl or aralkyl radicals, or jointly with the nitrogen atom to which they are attached, a piperidine or morpholine ring; R2 represents a C6- 17 alkyl radical; "hal" represents chlorine or bromine and "lower alkyl" represents methyl or ethyl.  The above compounds are prepared (1) by reacting equimolar amounts of an amine of the formula <FORM:1016652/C2/2> with a compound of the formula <FORM:1016652/C2/3> (2) by reacting a compound of the formula R2.hal with a compound of the formula <FORM:1016652/C2/4> or (3) by reacting a lower alkyl halide with a compound of the formula <FORM:1016652/C2/5>ALSO:A disinfectant composition suitable for the disinfection of skin, rooms, floors, cutlery, tableware, medical instruments, sickroom linens, sputum and excrements, or for incorporation into ointments, contains as the active ingredient a compound of the formula:  <FORM:1016652/A5-A6/1> wherein R1 represents a halogen atom, an alkoxy, aryloxy, alkylthio or arylthio group, or a group -NR3R4 in which R3 and R4 represent hydrogen atoms, alkyl, hydroxyalkyl or aralkyl radicals, or jointly with the nitrogen atom to which they are attached, a piperidine or morpholine ring; R2 represents a C6-17 alkyl radical; "hal" represents chlorine or bromine and "lower alkyl" represents methyl or ethyl.  Other ingredients present include water, organic solvents, powdery substances (for tablet forms), phenol, sodium nitrite or sodium octylhydroxyacetate (anti-rusting agents).
Patent GB-1476524-A (GB)
Title: Tri-angular thrust or torque link for a vehicle axle suspension
IPC: F16C11/06
Filed: 1974-09-24
Abstract: 1476524 Beam axle suspensions DAIMLER-BENZ AG 24 Sept 1974 [5 Oct 1973] 41553/74 Heading B7D In a triangular thrust or torque link 3 for a beam axle suspension, arms 1, 2 are connected at the apex of the link to a sleeve 6 defining an axis perpendicular to the plane of the arms about which the arms are movable to adjust the included angle, one arm 1 having a split clamping eye 8 which is tightened around the sleeve 6 by a screw 9 and the other arm 3 being formed integrally with the sleeve.
Patent GB-1306559-A (GB)
Title: Printers
IPC: B41J9/24
Filed: 1970-09-01
Abstract: 1306559 Selective printing NORTEC COMPUTER DEVICES Inc 1 Sept 1970 [2 Sept 1969] 41737/70 Heading B6F Hammer impression.-In a band, chain, drum or reciprocating bar printer, each hammer 11 is supported by two leaf-springs 13 and is cocked away from the printing position against a permanent magnet 31 by a pivotally mounted bail bar 23. Printing is effected by opposing the permanent magnetic field with an electromagnetic field produced by coils 41 on the polepieces 29, thereby releasing the cocked hammer. A dynamic damper 35 supported by another leafspring 37 is cocked with the hammer. The natural frequency of the damper is lower than that of the hammer, causing the damper to strike the rebounding hammer arm. after printing. The energy in the rebounding hammer is absorbed by the impact of the damper to reduce oscillations in the hammer. The motive power for the pivoted bail 23 is derived from a continuously reciprocating cluteh drive plate 65 which is electromagnetically retained selectively to driven element 61 pivoted to bail drive arm 59.
Patent GB-1155291-A (GB)
Title: Improvements in or relating to Forced-Flow Boilers.
IPC: F22B35/10
Filed: 1966-09-19
Abstract: 1,155,291. Raising steam in forced flow boilers; heating feedwater; controlling superheat temperatures. DURRWERKE A.G. 19 Sept., 1966 [18 Sept., 1965], No. 41796/66. Heading F4A. A once through forced flow boiler comprises a preheater 5, an evaporator 6, and first and second superheaters 7, 9 connected in series. Steam from the outlet of superheater 9 passes through turbines 10, 12 and an intermediate reheater 11 on its way to a condenser 13 from where the condensed steam passes back to a storage tank 1. A feed pump 2 then supplies water from a tank 1 through control valve 3 and a control preheater 4 comprising a bank of U-tubes 25 in a cylindrical drum, to the preheater 5. On start up and during low load operation, valve 8 between superheaters 7 and 9 is closed, so that fluid from superheater 7 passes to a separator 16. Steam from the separator 16 passes to the superheater 9 whilst water drains through line 16a to drum 4 to preheat the boiler feedwater in tubes 25. Water from drum 4 is returned to tank 1 through a line containing valve 17 which is regulated in dependence upon the water level in the drum 4, the water temperature in the tank 1 and the steam temperature leaving superheater 9, to maintain a suitable water level. An overflow line from drum 4 is also provided. As start up proceeds, some steam is passed through line 16a from separator 16 to drum 4 to heat the feed water in tubes 25 which then act as a condenser. Variation of water level in drum 4 controls the proportion of steam so returned, and thus the amount of steam passed through superheater 9, and so can control the steam outlet temperature at point 20. In a modification (not shown), the water level control may be effected in a separate vessel arranged downstream of the preheating drum.
Patent GB-1009328-A (GB)
Title: Letterboxes
Inventor: AITKEN ROY
IPC: A47G29/12
Filed: 1963-10-23
Abstract: 1,009,328. Letter boxes. ROY AITKEN & PARTNERS Ltd. Sept. 28, 1964 [Oct. 23, 1963], No. 41834/63. Heading A4T. A letter box, preferably in plastics material, is pivotally mounted on a door by a separate or integral hinge flap 21 so that the box swings upwards and comprises a back 11 with an opening 12 registering with the door insertion slot and a front 12 with at least a part inclined downwardly away from the door to facilitate the entry of packages. The front may have window holes 18 which may be covered with transparent material, and antifouling fins 20. The sides are provided with removal apertures 17.
Patent GB-1404468-A (GB)
Title: Circuit arrangement for generating two amplitude-stabilised sinusoidal signals which are 90 o out of phase relative to one another
IPC: G06G7/22
Filed: 1972-09-08
Abstract: 1404468 Automatic voltage control SIEMENS AG 8 Sept 1972 [9 Sept 1971] 41905/72 Heading G3R Sinusoidal signals 90 degrees out of phase and produced by an electronic generator are amplitude stabilized by an arrangement including squaring and adding circuits, a comparator, and signal divider circuits. The comparator output is processed by an integrating controller. As shown in Fig. 2, a variable frequency twophase generator 2 produces orthogonal voltages A 1 , A 2  which are passed to dividers 8, 9, forming part of a vector analyzer VA Fig. 3. The outputs from the dividers are squared in circuits 10, 11, and the squared signals added together with a reference E in a mixer 13. The mixer output is passed through a proportional-integral controller 14 with an output clamp 15 to form the divisor inputs for dividers 8, 9. Thus, the output signals from the dividers are normalized and form amplitude stabilized signals cos α, sin α independent of variations in the amplitude of the generator output. These signals may be fed back to stabilize the voltages A 1 , A 2  by forming inputs for the generator 2 which includes cross-connected integrators 19, 20 and multipliers 21, 22, Fig. 3. In another arrangement, Fig. 4 (not shown), the output from controller 14 is passed through a further PI controller (25) to form the inputs for the generator 2.
Patent GB-956951-A (GB)
Title: Process for the production of propionic acid-3,4-dichloroanilide
IPC: C07C233/02
Filed: 1962-11-09
Abstract: Propionic acid 3, 4-dichloroanilide is prepared by reacting 3, 4-dichloroaniline and a molar excess of propionic acid, referred to the dichloroaniline, in chlorobenzene as a solvent and at an elevated temperature while gradually adding a molar excess of thionyl chloride, referred to the dichloroaniline.  Preferably 1.2 mol. each of propionic acid and thionyl chloride are used per mol. of dichloroaniline. The preferred temperature is 90-95 DEG C. Specifications 840,912 and 903,766 are referred to.
Patent GB-1138189-A (GB)
Title: Crystal lamp production
IPC: H01L33/00
Filed: 1965-10-08
Abstract: 1,138,189. Electroluminescence. A. CALVERLEY, and M. C. ROWLAND. 28 Sept., 1966 [8 Oct., 1965], No. 42736/65. Heading C4S. [Also in Division H1] A PN junction device designed to emit green light is made by recrystallizing P-type gallium phosphide from a gallium phosphide melt containing zinc, cadmium or other acceptor dopant, silicon, and an element with a high affinity for oxygen, and subsequently forming a PN june. tion in the crystal material. The element with a high oxygen affinity, used to remove oxygen from the melt, may be aluminium, titanium or erbium.
Patent GB-1406711-A (GB)
Title: Control of an apparatus from a remote location
IPC: H04Q9/14
Filed: 1972-09-15
Abstract: 1406711 Remote control SAAB-SCANIA AB 15 Sept 1972 [12 Oct 1971] 42884/72 Heading G4H A remote control system (e.g. for a guide cable piloted truck) comprises means for detecting errors in transmitted control words and for rendering the system inoperative while the errors are present. As described, a control command is transmitted in the form of telegrams consisting of four "periods" each containing a "1" or "0" digit and a pause, a telegram only being accepted if (a) the duration of each digit is at least 0À35 of the period, (b) the duration of a pause is at most 0À75 of the period, and (c) the duration of the fourth digit is more than 0À6 of the period ; otherwise, after an error telegram, two consecutive correct telegrams must be received for the control command to be effected. The command from control 1 is encoded at 7 and passes via a parallel/series converter 8 and a frequency shift modulator 9 to a guide cable 5. The signal is induced in detector coils 6 and passed to a demodulator 10, a series/parallel converter 11 controlled by a test circuit 13, and a decoder 12 which passes the original command to the steering mechanism 4 of the truck. Converter 11 includes a shift register 15 and a gate 16, the command signal being in the form a m ( = 1 for "1" and 0 for pause), b m ( = for "0" and 0 for pause). Circuit 13 comprises counters 17-21, gates 22-24 and flip-flop 25. Counter 17 checks conditions (a) and (c) above to produce respective pulse outputs d, f (Fig. 3, not shown), and counter 18 checks condition (b), both by counting clock pulses 29 under the control of a signal c (= 1 for a digit and 0 for a pause). Counter 20 counts d pulses to produce a pulse e, the signals e, f then enabling gate 22 to produce a signal i which opens gate 16 for the correct telegram. If the telegram is incorrect signals I or n from 18 or 23 enable gate 24 to reset flip-flop 25, removing signal k and blocking the gate; counter 21 then ensures that the telegram is received correctly twice before its output j sets 25 again to reapply k.
Patent GB-1246869-A (GB)
Title: Polydimercapto-s-triazines
IPC: C08G75/02
Filed: 1969-08-29
Abstract: 1,246,869. Polydimercapto-s-triazines. J. R. GEIGY A.G. 20 Aug., 1969 [30 Aug., 1968], No. 43189/69. Heading C3R. Novel polydimercapto-s-triazines consist of units of formula or of units of Formula I and units of formula or of both units of formulµ I and II and units of formula where X, X<SP>1</SP> and X<SP>2</SP> are different from one another and are five to seven-membered heterocyclic nitrogen radicals, alkoxy groups, cycloalkoxy groups, alkenyloxy groups, phenoxy groups, aralkyloxy groups or groups of formula where R<SP>1</SP> is an aliphatic, cycloaliphatic, araliphatic or aromatic radical and R<SP>2</SP> is hydrogen or the same as R<SP>1</SP>, or of units of Formula I, or I and II, or I, II and III, in each case with units of formula where Z and Z<SP>1</SP> are -0-, -S- or -NR-, where R is hydrogen, alkyl or aralkyl, A and A<SP>1</SP> are alkylene, BH n  is the organic radical of a di- or tri-amine and n is 0 or 1, or units of Formula I, or I and II, or I, II and III, in each case with units of formula The polymers are prepared by oxidizing dimercapto-s-triazines of formula where X<SP>1</SP> is X, X<SP>1</SP> or X<SP>2</SP> as defined above, with an oxidizing agent having a Redox potential of - 0À36 to - 1À77. The polymers so-produced and having hydroxylalkylamino groups can be cross-linked by reaction with di- or polyisooyanates. Cross-linked polymers also are obtained when trithiocyanuric acid is present in the polymerization reaction. Examples are given.
Patent GB-1412045-A (GB)
IPC: C07H9/04
Filed: 1973-09-14
Abstract: 1412045 Diacetone-2-ketogulonic acid AEC SOC DE CHIMIE ORGANIQUE ET BIOLOGIQUE 14 Sept 1973 [15 Sept 1972] 43245/73 Heading C2C Novel calcium salt of diacetone-2-ketogulonic acid is prepared by reaction of the acid with a calcium containing base. The salt has hypocholesteremic and hypolipemic properties and forms with a carrier or excipient a pharmaceutical composition which may be administered orally or parenterally.
Patent GB-1424243-A (GB)
Title: Digital clocks
IPC: G04G9/10
Filed: 1973-09-14
Abstract: 1424243 Electronic timepieces ISE ELECTRONICS CORP 14 Sept 1973 43252/73 Heading G3T An electronic digital clock e.g. with 7 and 8-bar luminous segment display tubes as Fig. 1 has a fast setting feature including manually operated means (switches 24a-24d) Fig 6c for entering any desired times to be displayed and manual means (switch 34) for causing counters and display to be fed at faster than normal rate, and means for comparing the actual time displayed with the desired time setting and stopping the rapid setting process upon coincidence. The clock comprises a 1MHz crystal controlled oscillator (not shown) connected to a terminal 5, Fig. 6D, and to a frequency divider 6 which produces pulses at 1Hz and <SP>1</SP>/ 60 Hz at its terminals 6a, 6b respectively. The divider output at 6b is applied via an OR gate 14a to a minutes binary  counter 7. When counter 7 is full it resets and passes a pulse to a tens of minutes counter 8 which is followed by an hours counter 9 and tens of hours counter 10 in known manner. The contents of the counters are applied to decoders 15 to 18 Fig. 6B OR gates 14b to 14n and AND gates 12i to 12v which actuate the appropriate display segments of tubes 2a to 2d via drivers 20 when the AND gates are enabled by switching a selector switch 33 to a contact 33a. The tube 1a of the AM/PM display portion is appropriately activated via a flip-flop 11. Selector means enable either 12 hour clock operation with noon displayed as "0" or "12" o'clock, or 24 hour clock operation. AM and PM displays are caused to flicker ON/OFF once per second. SETTING  Time setting switches 24a-24d Fig. 6C are manually operated to set any desired time which is decoded at 26a-26d and applied to Ex.OR gates 23a-23n. A switch 34 is manually switched to a contact 34a resetting the f divider 6 and the 1MHz clockpulses will be applied to the counters 7-10 via AND gate 12a thereby operating these counters at high speed. A switch 33 is manually switched to a contact 33b to establish an H level at the other inputs of the Ex-gates 23a-23n which produce outputs to enable the AND gates 12i-12w to pass the outputs of the counters 7-10 and F.-F. 11 to the display.  The outputs of the counters 7-10 are also applied to a coincidence gate circuit 27, Fig. 6A detailed in Fig. 15 (not shown) which determines the occurrence of coincidence between the outputs of the counters and the time set by the switches 24a-24d and between the outputs of F-F11 and an AM/PM transfer switch 25. Upon coincidence, the circuit 27 sends a signal via a NOT gate 13c to block or disable the AND gate 12a and thereby  terminate the high speed time adjusting operation. In addition, the gate 27 output operates a chime 29.
Patent GB-1506989-A (GB)
Title: Rain echo elimination device
IPC: G01S7/02
Filed: 1976-10-19
Abstract: 1506989 Radar INTERNATIONAL STANDARD ELECTRIC CORP 19 Oct 1976 [24 Oct 1975] 43318/76 Heading H4D In a radar incorporating rain clutter removal, the transmitted circular polarized pulse is produced by combined (4) phase quadrature, horizontal H and vertical V polarized components. The rain returned horizontal and vertical components may not be in phase quadrature and of equal amplitude (return elliptically polarized) such that addition of a #/2 phase shifter 15 in one IF channel does not give two antiphase equal amplitude signals which cancel out at 18. The deviation from antiphase is thus detected at 19 and compensated for using a gated (h, 21, 22) portion Fig. 2b wider than but excluding the range gated portion, Fig. 2a, and a controlled variable phase shifter 16. The deviation from amplitude equality is detected at 23 and compensated for using a controlled variable attenuator 17. If the, e.g. H component is below a threshold S (25) indicating negligible rain, the servo loops are opened (20, 24) and the signals made in phase by the addition of a # phase shift 13. A Doppler radar embodiment, Fig. 3 (not shown), operates on the Sin and Cos parts of each H and V component, the amplitude comparison using Sin<SP>2</SP> + Cos<SP>2</SP> formula and the phase comparison using Sin.Cos-Cos.Sin formula. Normalization is also used.