baber/WOPTO huggingface dataset:
Patent GB-588593-A (GB)
Title: Improvements in filing devices for record cards or the like
IPC: B42F17/28
Filed: 1945-03-01
Abstract: 588,593. Filing cars. JONAS, SEN., R. A., JONAS, JUN.. R. A., JONAS, R. P., JONAS, F. D., and JONAS, E. F. [trading as OXFORD FILING SUPPLY CO.]. March 1, 1945, No. 5156. Convention date. March 1, 1944. [Class 146 (i)] A rotary card file has a number of trays for holding cards in planes normal to the axis of rotation of the file, locking devices for retaining the cards in the trays and means for automatically releasing the locking devices as the trays are moved to card inspecting position. As shown four trays 15 are secured to the arms 14 of cross shaped members rotatable upon a shaft 13 to bring each tray in succession to the upper position in which cards C standing on edge may be removed. The cards have dovetail slots N in their bottom edges in which engage vanes 20 secured to shafts 23 geared together and one of which is connected to a lever 24 having a cam roller 27 held by a spring 25 in contact with a cam 28 fixed to the stationary housing of the file. The rollers 27 of those trays not in card inspecting position engage the high part of the cam 28 and the vanes 20 are thereby expanded into locking engagement with the slots N, but as the trays reach the upper position, the cam roller 27 drops into a recessed part of the cam, bringing the vanes together and releasing the cards. The cam 28 may be rendered inoperative to release the cards at the upper position by means of a quadrant mounted on the shaft 13 and turned, when desired, to bridge the recessed part of the cam and hold the roller 27 in raised position. This quadrant may be padlocked to the fixed housing in either its inoperative or in its operative position. Instead of two vanes 20, a single vane with a hooked end may be used in conjunction with T- shaped slots in the cards. Or a shaft may pass through the circular part of a key hole slot in the card, the shaft having vanes at opposite sides of a diameter to bridge the open part of the slot to lock the card or to be in line therewith to release the card. As further alternatives arms pivoted near the lower corners of the cards have hooked upper ends engaging over the top edges of the cards, or in notches formed in the side edges of the cards.
Patent GB-597820-A (GB)
Title: Improvements in substituted quinolines and methods of preparing them
IPC: C07D215/46
Filed: 1945-03-01
Abstract: 6 - Substituted - 4 - [o 1-(symmetrical dialkyl-amino)-polymethyleneamino]-quinolines, useful as antimalarials, of the general formula <FORM:0597820/IV/1> where R represents hydrogen, the methyl or ethyl groups, each R1 represents the same non-tertiary alkyl radical having from 2 to 6 carbon atoms, and n is 2 or 3, are prepared by condensing 6-methoxy or 6-ethoxy-4-chloro-quinoline with a diamine of the general formula <FORM:0597820/IV/2> where R1 and n have the same significance as before and when R is to be hydrogen, the base formed is dealkylated by heating with a dealkylating agent, e.g. hydrobromic acid, and neutralizing to liberate the base.  The bases may be converted to salts by the addition of acids.  In examples: (1) 6-methoxy-4-chloroquinoline, 2 - (diethylamino) - ethylamine and cymene are heated to yield 6-methoxy-4-[21-(diethylamino)-ethylamino]-quinoline which is either converted to its dihydrochloride by treatment with hydrochloric acid gas, or dealkylated by heating with hydrobromic acid to yield a salt of 6-hydroxy-4-[21-(diethylamino)-ethylamino]-quinoline from which the base is liberated and converted to its dihydrochloride; (2 to 7) similarly, other 4-substituted derivatives of 6-hydroxy, methoxy or ethoxy quinoline are prepared and are converted into the di-salts as hydrochlorides, hydrobromides, sulphates, nitrates, phosphates, lactates or propionates, namely the 4-substituted 21-(di-isobutylamino)-ethylamino-, 31-(diethylamino)-propylamino-, 2-(di-n-butylamino)-ethylamino-, 3 - (di - n - butylamino) - propylamino-, 2 - (di - n - amylamino)-ethylamino-, 3-(di-n-amylamino) - propylamino-, 2 - (di - iso - amylamino) - ethyl - amino-, 3 - (di - iso - amylamino) - propylamino-, 2-(di-n-hexylamino)-ethylamino- and 3-(di-n-hexylamino) - propylamino - derivatives of 6-hydroxy, methoxy or ethoxy quinoline.  Diamines of the general formula <FORM:0597820/IV/3> are prepared: (i) when n is 2, by heating a suitably substituted secondary amine, sodium bisulphite, formalin, potassium cyanide and water and reducing the dialkylaminoacetonitrile with hydrogen under heat and pressure in the presence of a suitable catalyst, e.g. Raney nickel; (ii) when n is 3, by condensing a suitably substituted secondary amine with acrylonitrile and reducing the 3-(dialkylamino)-propylnitrile as in (i).
Patent GB-1029917-A (GB)
Title: Crystalline derivatives of 6-amino-penicillanic acid and process for their preparation
IPC: C07D499/00
Filed: 1964-02-07
Abstract: The invention relates to solid, crystalline penicillin acids of general formula <FORM:1029917/C2/1> where R is a substituted or unsubstituted heterocyclic group.  R may be a 5- or 6-membered substituted or unsubstituted heterocyclic group containing at least one nitrogen, oxygen or sulphur atom, e.g. oxazole, thiazole, thiadiazole, furyl or pyrimidyl.  The penicillin acids are produced by reacting 6-aminopenicillanic acid with an acid halide of formula <FORM:1029917/C2/2> where R has the above meaning and Hal is halogen, in an aqueous medium, at a pH below 3 in the presence of a water-soluble organic solvent, such as acetone, which is inert in the reaction.ALSO:Pharmaceutical compositions especially for oral, rectal or parenteral use comprise at least one solid, crystalline, penicillin acid of formula <FORM:1029917/A5-A6/1> wherein R is a substituted or unsubstituted heterocyclic group. R may be a 5- or 6-membered substituted or unsubstituted heterocyclic group containing at least one nitrogen, oxygen or sulphur atom e.g. oxazole, thiazole, thiadiazole furyl or pyrimidyl.  Optional drugs are (a) other antibiotics e.g, oxytetracycline, tetracycline, streptomycin, fumagillin and nystatin, (b) sulpha drugs e.g, sulphadimidine and (c) antihistamines e.g. phenindamine
Patent GB-913467-A (GB)
Title: Improvements in or relating to automatic gain control systems
Inventor: PAYNTER DOUGLAS ARNOLD
IPC: H03G3/20
Filed: 1960-02-16
Abstract: 913,467. Automatic gain-control. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Sept. 27, 1960 [Feb. 16, 1960], No. 5424/60. Class 40 (5). An automatic gain-control arrangement for a carrier-frequency amplifier 1 which feeds a line 2 comprises a frequency-changer 8 and local oscillator 4 feeding an intermediatefrequency amplifier 5 the output of which is rectified by rectifier 6 to provide a control voltage controlling the gain of amplifier 1 over line 7. The intermediate frequency may be higher than the original carrier frequency, allowing of a short time-constant in the automatic gain-control circuit 7, yet adequate filtering. Specification 454,954 is referred to.
Patent GB-271569-A (GB)
Title: Process for reducing vat dyestuffs into their leuco derivatives
IPC: C09B67/28
Filed: 1926-02-26
Abstract: 271,569. Marschalk, C. H. Feb. 26, 1926. Leuco-indigo; leuco compounds of vat dyes, esters of.-Vat dyes are reduced to their leuco compounds by treating a suspension of the dye in an anhydrous organic solvent with hydrogen at ordinary or increased pressure in the presence of a hydrogenation catalyst. The resulting suspension of the leuco compound in the organic solvent may be used as such for the preparation of esterified derivatives. Examples are given of the reduction of indigo in suspension in dry dimethylaniline; the product mav be directly esterified with sulphuric chlorhydrin. Specifications 16936/13, [Class 1 (i), Chemical processes &c.]; and 135,510 are referred to.
Patent GB-452155-A (GB)
Title: Improvements to or relating to weighing machines
IPC: G01G23/18
Filed: 1935-02-21
Abstract: 452,155. Electric selective signalling systems. HENDRICK, W. A. F., 67, Bywell Road, Dewsbury, SOWLEY, J., 170, Edmund Road, Sheffield, and OSBALDISTON, F., 3, Ravenscroft, Scout Hill, Dewsbury, both in Yorkshire. Feb. 21, 1935, No. 5525. [Class 40 (i)] In a system for recording weights indicated by a weighing machine, a contact arm, is moved by the machine over a contact plate and when a recording is to be made, the arm and plate are brought into contact to energize magnets which operate type arms to impress or print the indication on suitably placed tickets. As shown in the drawings, the contact arm 2 moves with the indicating pointer of the weighing machine. When a recording is to be made, a contact plate 14 and insulating disc 60 are moved towards each other by means of a manually operated handle (not shown). Circuits are thus completed through contacts 9, 10, 11 and 12 and through continuous conducting ring 13 to magnets 18 controlling type arms 21 so that the indicated weight is impressed or printed on a ticket inserted at 54. The type arms are reset by lever 52 which is controlled from the manual handle referred to above.
Patent GB-1222322-A (GB)
Title: Process for the production of vitamin c
IPC: B01J31/00
Filed: 1969-02-03
Abstract: 1,222,322. Ascorbic acid. POLITECHNIKA SLASKA IM. W. PSTROWSKIEGO GLIWICE. 3 Feb., 1969 [23 Nov., 1968; 1 Feb., 1968 (2)], No. 5595/69. Heading C2V. Ascorbic acid is obtained by heating with a cation exchange resin a solution of a 2 - ketohexonic acid, an ester thereof or an acetal or ketonacetal derivative thereof. In examples ascorbic acid is obtained by heating diacetone- 2 - keto - 1 - gulonic acid in water and in ethyl alcohol and 2 - keto - 1 - gulonic acid in tert. butyl alcohol and in dioxane, the solutions being in contact with cation exchange resins.
Patent GB-109588-A (GB)
Title: Improvements in and relating to Smiths' Forges.
Inventor: BRUCE ADOLF RAGNAR GABRIEL
IPC: B21J19/02
Filed: 1917-04-23
Abstract: 109,588. Bruce, A. R. G. April 23, 1917. Smiths' forges.-A blast-heating box or' casing is bricked in the side wall so as to extend above the fire. It is formed with partitions and baffles forming a zigzag passage from the inlet 2 to the outlet nozzle 3. The front of the box may be removable and have a projecting seat for the nozzle as shown in Fig. 5, the nozzle being secured in position by a bayonet joint. An escape opening controlled by a suitable internal slide may be provided in the back of the box.
Patent GB-1023588-A (GB)
Title: Anti-freeze apparatus for a pneumatic system
IPC: F16L53/00
Filed: 1963-02-12
Abstract: 1,023,588. Anti-freeze devices for compressed air systems. FABBRICA ITALIANA MAGNETI MORELLI S.p.A. Feb. 12, 1963 [Feb. 14, 1962], No. 5745/63. Heading B1R. In an antifreeze device for a compressed air line the upper end of a tubular body 26 containing a wick dipping into a liquid such as alcohol, is moved into and out of a chamber 18 through which compressed air passes in response to changes of pressure in the line acting on a piston head 36 movable in a cylinder 38 and connected to the tubular body by a rod 32. As shown in Fig. 1, there is a threaded socket 42 which is in use connected to the compressed air line but in a modification the pressure in the chamber 18 acts directly on the piston head. A spring 52 arranged between a flange 50 in the tubular body and the lower wall of the chamber 18 serves to bias the tubular body into a position in which its upper end is withdrawn from the chamber 18. In a modification the tubular body is fixed with its upper end lying within the chamber 18 and movement of a piston responsive to a change in pressure seals and unseals an opening in the upper end of the tubular body.
Patent GB-664516-A (GB)
Title: Improvements in or relating to electrical photo-flash apparatus
Inventor: NORTHMORE RAYMOND
IPC: H05B41/30
Filed: 1949-03-02
Abstract: 664,516. Electrostatic switches. LAURENCE INDUSTRIAL INSTRUMENT & CONTROL CO., Ltd. Jan. 3, 1950. [March 2, 1949] No. 5777/49. Class 38 (v). [Also in Group XXXV] A switch, for standardizing the extent of charging of a condenser (see Group XXXV) which may be discharged through a gas discharge tube used for photographic illumination, comprises a plate electrode 16, adjustably secured to an insulating plate 14, and a movable plate electrode 11 which when attracted by the electrode 16, actuates a contact 22. The plate 11 may be hinged by its own flexure but, as shown, is pivoted at 12, 12<SP>1</SP> and is normally urged by gravity so that contact 22 engages a fixed contact 23. When the condenser is charged to the required potential, the plate 11 is attracted upwards and contacts 22, 23 open to interrupt the power supply to the condenser, and when the condenser susequently discharges or leakage occurs across it, the plate 11 falls to the Fig. 2 position. The contact 22 may be insulated from plate 11 and connected thereto by a lead or may form part of the plate. A mica, or other dielectric, sheet 19 is placed on the plate 16.
Patent GB-1070714-A (GB)
Title: (alkylaminoethoxy)-dihaloanilines and process of preparation thereof
IPC: A61K31/135
Filed: 1966-02-10
Abstract: Novel compounds of the formula <FORM:1070714/C2/1> wherein X is chloro, bromo, or iodo, R is alkyl containing from 1 to 4 carbon atoms, R1 is hydrogen or alkyl containing from 1 to 4 carbon atoms, or R and R1 taken together represent (CH2)5, Y is H, -CH3, or -CO-CH3, Z is H or -CH3 but is H if Y is -CO-CH3, n is an integer from 0 to 2 or 0 to 1 if Y is -CO-CH3, and HA represents a pharmacologically acceptable acid, are prepared by reacting a compound of formula <FORM:1070714/C2/2> wherein Y1 is methyl or acetyl with a primary or secondary amine optionally followed by (i) hydrolysis of the compound wherein Y1 is acetyl to give the compound wherein Y is hydrogen, (ii) salt formation.  The compounds of the last general formula above are prepared by reaction of ethylene dibromide with a compound of the general formula <FORM:1070714/C2/3> Acetanilides of the last general formula above are prepared by reacting the corresponding amine with acetic anhydride.  Saline solutions of the compounds of the first general formula above for parenteral use are disclosed.
Patent GB-1373004-A (GB)
Title: Storage and display device
IPC: A47F7/024
Filed: 1972-04-27
Abstract: 1373004 Display stands FILM & TELEVISION PRODUCTION SERVICES Ltd 27 April 1972 [2 March 1971] 5864/71 Heading A4T [Also in Division E2] A storage and display device for pre-recorded tape magazines comprises at least one compartment having an open region and adapted to receive a plurality of tape magazines such that a part of each magazine is accessible through the open region for handling, the or each compartment having a series of locating means adapted to be positioned between the magazines to locate them in a row, abutment means to prevent removal of any magazine, and locking means which can be released to allow movement between the abutment means and the compartment to remove the obstruction and allow a magazine to be removed. As shown in Fig.1, the compartments may be formed by drawers 4 arranged between partitions 2 carrying abutment means 3. The drawers are locked in position by lock 10, and may be drawn out of the arrangement upon unlocking. Alternatively, as shown in Fig.6, the compartments are shelves 26, and the abutment means are L-shaped bars 30 rotatable about a longitudinal axis. In either case, the individual tape magazines are supported between rods 27, and an alarm may be provided to indicate when the locking means is unlocked.
Patent GB-1033102-A (GB)
Title: Improvements in or relating to monitoring or fault indicating circuits for multi-stage electronic counters or the like
Inventor: SHERLOCK JAMES FRANCIS
IPC: H03K21/40
Filed: 1963-02-13
Abstract: 1,033,102. Semi-conductor logic circuits. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. April 17, 1963 [Feb. 13, 1963], No. 5886/63. Heading H3T. [Also in Division G4] An electronic storage device such as a counter in which only one stage is set at a time is tested for correct operation by a plurality of gate circuits so interconnected that an invalid setting indicates a fault condition. An 8-stage transistorized circuit is tested by connecting all possible valid combinations of stages T1 . . . T4 to AND gates G7-G10 and of stages T5 . . . T8 to AND gates G2-G5. These two combinations of AND gates forms OR gates and are combined respectively with AND gates G6 and G1 operative when stages 5-8 and 1-4 are in reset condition. The potentials at X and Y can therefore be earth or negative, which potentials are applied to inverters I1, I2 and AND gate G11. Occurrence of earth at both X and Y produces a fault signal at S irrespective of whether 0 or 2 or more stages are set. Modifications are described.
Patent GB-555020-A (GB)
Title: Gain-control receiving circuits for signalling systems
IPC: H04B3/06
Filed: 1942-05-01
Abstract: 555,020. Code telegraphy. STANDARD TELEPHONES & CABLES, Ltd. May 1, 1942, No. 5887. Convention date, Feb. 19, 1941. [Classes 40 (iii) and 40 (v)] Relates to carrier telegraph and like receivers in which variations in level of the received currents are compensated by automatic gain control circuits. In such systems during long spacing periods, e.g. between messages, the amplifiers have maximum sensitivity and may amplify noises and extraneous signals picked up in the line circuit sufficiently to cause interference with the proper signals. To avoid this, during long spacing periods the gain of the amplifier or detector is limited to about the normal. In the system shown in Fig. 1, the carrier signals pass through a filter 5, amplifier 6, detector 7 to operate the polarized relay 8, and sounder 9. The gain of the detector 7 is controlled during signalling by a condenser C<SP>1</SP>, resistance Rg and battery 32, relay 10 operating in unison with relay 8. The grid of the detector 7 is also connected through a 50 megohm resistance Rs to a potential of -55 volts to limit the gain during long spacing periods. In the system shown in Fig. 2, which is similar to that described in Specification 528,274, the carrier signals pass through a filter 15, amplifiers T<SP>1</SP>, T<SP>2</SP> with variable-mu valves, detector D, a directcurrent amplifier T3, to a polarized repeating relay RR. The supressor grid current of valve T3 controls the gain of valves T<SP>1</SP>, T3, the suppressor grid current flowing through a resistance 17, shunted by a condenser 18. The voltage drop across 17, 18 is applied through resistance 20 and condenser 19 to the control grid circuit of amplifier T<SP>1</SP>. To limit the gain of amplifier T<SP>1</SP> during long spacing periods, an additional battery 25 is connected in series with the resistance 17, but during normal signalling this is made inoperative by a thermistor 23 in shunt therewith, the thermistor having a resistance of, say, 100 ohms when heated by intermittent currents when the armature of the polarized relay RR engages its marking contact, but a resistance of, say, 100,000 ohms when cold, as when the armature of relay RR engages its spacing contact during long spacing periods. To prevent the gain of the valve being varied by ambient temperature variations, a second thermistor 26 is connected as shown. Alternative arrangements, Figs. 3 and 4 (not shown), for switching in an additional negative voltage to limit the gain of the valves during long spacing intervals are described. Specification 538,006 also is referred to.
Patent GB-1156296-A (GB)
Title: Reel Drum Lateral Movement Control
IPC: B21C47/34
Filed: 1968-02-06
Abstract: 1,156,296. Coiling strip. BLAW-KNOX CO. 6 Feb., 1968 [2 March, 1967], No. 5928/68. Heading B3E. [Also in Division F2] Strip coiling apparatus comprises a stationary support, a shaft carried by the support and having a free end projecting from the support to carry the coil, shaft driving means fixed relative to the support, means for sensing the position of an edge of a moving strip forming part of the material on the coil, and means for moving the shaft axially independently of the support and the driving means, in response to signals from the sensing means to maintain the strip edge in a predetermined position. Strip 2 to be wound into a coil 3, passes over bridle rollers 15, idler roller 16 and rubber-covered deflector roller 17, and on to an expansible mandrel 4. The position of the edge of the strip is detected by a sensor 5 which is connected to a regulator 7, controlling the flow of hydraulic fluid from a source 10 to a double-acting cylinder in which is a piston 14. The mandrel 4 is mounted on a shaft 21 which is reciprocated by the piston 14 and driven in rotation by a motor 18. The shaft 21 slides in sleeve bearings 35, 36 formed in sleeve 24 which is itself carried by roller bearings in the housing 19. Although there is no relative rotation between the shaft 21 and the bearings 35 and 36, the point of contact L, Fig. 6, travels around the bearing as the sleeve rotates, since the weight of the coil causes the shaft to be supported by the bottom of the front bearing 36 and the top of the rear bearing. Lubricant is supplied to the bearings through a pipe 66 and an annular casing 64 which is sealed in running contact with the sleeve, at a position where it is pierced by a radial hole 67. An extension of the shaft 21 is supported by ball bearings 50 in the piston 14. The cylinder 42 is fixed to the housing 19. The drum 4 includes a collapsible mandrel which is operated by a rod 22 which passes centrally through the shaft 21, and which is supported by roller bearings in a guide member 51. mounted on the piston-rod of an hydraulic cylinder assembly 60. The guide member 51 is prevented from turning, relative to a cage 52, by splines 54. The cage 52 has projecting lugs 55 which enter longitudinal slots 56 in horns extending rearwardly from the fixed cylinder 42.
Patent GB-183505-A (GB)
Title: Improved method of and device for shaping grinding wheels
IPC: B24B53/07
Filed: 1921-02-22
Abstract: 183,505. Hanson, B. M. W. Feb. 22, 1921. Turning.-A trueing tool for a grinding wheel consists of a fluted roller, Fig. 3, loosely mounted on a horizontal spindle with end play, and having several circumferential grooves 12, each of the precise figure to which the periphery of the wheel b is to be turned. The roller is used by bringing it up hard against the wheel and slowly turning the latter by hand. Conversely, a worn groove in the roller may be re-trued by the wheel, the latter for this purpose being rotated rapidly, whilst the roller is brought into contact with it and rotated slowly in the same direction.
Patent GB-577366-A (GB)
Title: Improvements in or relating to seals
IPC: G09F3/03
Filed: 1944-03-31
Abstract: 577,366. Seals. NEWTON, E. P. (Stoffel Seals Co., Inc.). March 31, 1944, No. 6047. [Class 146 (ii)] A seal 2 for securing the ends of cords, wires or the like 4 consists of a cup-shaped member with a rim 3 tapering slightly towards the bottom 5 and adapted to be curled inwardly and around the cords, the edge 8 of the rim being uneven or jagged to facilitate the formation of the curl. Diametrically-opposed slots 7 are provided in the rim for the insertion of the cord. The two ends of the cord may pass around the left and right sides of the seal respectively as shown or both ends may pass around the same side. To obtain the uneven edge 8, the seal may be stamped from a blank of polygonal shape.
Patent GB-348732-A (GB)
Title: Improvements in or relating to the control of electrical motors
IPC: H02P1/54
Filed: 1930-02-24
Abstract: 348,732. Maintaining equal speeds of motors. CAM, F. A., New Hall, Bargoed, Glamorgan. Feb. 24,1930, No. 6088. [Class 38 (iii).] Repeater motors 20, 24 driving apparatus, such as kinematographs and sound reproducing apparatus, have their A.C. excitation supplied from terminals 21, 22 before the D.C. supply to the main driving motor 1, 2 is switched on. This is effected by providing the starter-arm 15 with a bridge 18. The starter-arm may reduce the A.C. excitation as it increases the D.C. supply. A relay may be used to complete the D.C. circuit only when current is flowing in the A.C. circuit.