baber/WOPTO huggingface dataset:
Patent GB-1504773-A (GB)
Title: Process for the production of alpha,beta-unsaturated carboxylic acid esters
IPC: C07B61/00
Filed: 1975-07-29
Abstract: 1504773 α,#-Unsaturated carboxylic acid esters DYNAMIT NOBEL AG 29 July 1975 [31 July 1974] 31779/75 Heading C2C α,# - Unsaturated carboxylic acid esters are prepared by reacting an α,#-unsaturated halogen compound with carbon monoxide in an alcohol with an alkali alcoholate of the same alcohol and in the presence of a metal carbonyl catalyst at a pH range of 8À5-11À5. Nickel or cobalt carbonyls may be used and the alkali alcoholate and α,#-unsaturated halogen compound are preferably added to an alcoholic solution of the catalyst. Allyl, crotyl, and 1 and 2-methallyl chlorides, 1-chloro-2-pentane, 1-chloro-2-hexene and higher compounds up to 20 C, and cyclic compounds such as 1-bromo-2-cyclohexene may be used with many alcohols listed. Examples describe the preparation of crotonic acid methyl. ethyl, and isopropyl esters, crotonic acid 2- methoxy and 2-ethoxy ethyl esters, #,#,-dimethyl acylic acid methyl ester, and 2-pentenic acid methyl ester.
Patent GB-226037-A (GB)
Title: Improvements in and relating to moulds for making articles of concrete or other plastic material
IPC: B28B7/00
Filed: 1923-12-18
Abstract: 226,037. Jamison, W. J. Dec. 18,1923. Moulds.-A mould for concrete blocks &c. comprises a base 1, carrying crossed spring strips 5, 6 supporting the walls 3, which diverge under the spring action and are moved into closed position by a frame 11 engaging wedges 10. The base and walls are strengthened by flanges. For hollow blocks, cores 7 are secured to a floor 15 connected to the frame 11 by stirrups and pass through apertures in the base 1. The mould is inverted for discharge, as shown. Handles 13 are provided on the end walls and serve also to limit the movement, of the frame 11. Modifications are described for the production of duplex, plain and corner blocks in which the cores 7 co-operates with cores 20, Fig. 4, fixed to the mould walls and with intermediate cores 22 formed of two hinged portions adapted to be opened by a spring 23 but held in closed position by the cores 7. Apertures 25 in the cores 20, 22 accomodate the metal ties 24.
Patent GB-388495-A (GB)
Title: Improvements in or relating to steam generators of the locomotive type
IPC: F22B13/08
Filed: 1931-11-17
Abstract: 388,495. Steam - boiler fireboxes. HALMAN, H., 60, Hewson Road, and RUSTON & HORNSBY, Ltd., Waterside South, both in Lincoln. Nov. 17, 1931, No. 31819. [Class 123 (ii).] The foundation ring a of locomotive-type fireboxes is made of inverted T-shape in cross section, the internal and external shells b, c being riveted or otherwise secured to the vertical limb and their bottom edges b<1>, c<1> bearing upon the horizontal limbs d of the ring. Welding or caulking at points b<2>, c<2> may thus be effected from above the ring.
Patent GB-211242-A (GB)
Title: Improvements in dry gas meters
IPC: G01F3/22
Filed: 1922-11-22
Abstract: 211,242. Simpson, S. Nov. 22, 1922. Gas meters.-In dry gas meters of the kind in which the gas passages to and from the valves are provided mainly above the valve plate, the ports of the valve gratings open laterally at different levels in the corresponding gas passages. The valve gratings d, e in the meter shown are arranged on the valve plate. a in a chamber q partitioned off from the upper compartment of the meter, and the middle ports d<1>, e<1> of the valve gratings open respectively into limbs b<1>, b<2> of a Y-shaped fitting b leading to the gas outlet pipe c. The gas inlet pipe s is connected to the chamber q by a passage t. The outer port d<2> of the grating d is connected by conduits b, b<1> to one diaphragm while the inner port d<3> communicates through a conduit f and a port a<1> with the corresponding diaphragm chamber. The outer port e<2> of the grating e communicates directly with the other diaphragm chamber, and the inner port e<3> is connected by conduits g, l to the diaphragm. The flag wires m pass through the plate a into the valve chamber q and are connected by levers m<1> and links m<2> to a spindle n operating the valves o, p and index spindle r.
Patent GB-334109-A (GB)
Title: Method of cleaning the nozzles in artificial silk spinning machines
IPC: D01D4/04
Filed: 1929-10-21
Abstract: 334,109. Kohorn, O. von, (trading as: Kohorn & Co., O.), and Schupp, H. Nov. 15, 1928, [Convention date]. Apparatus for making filaments. -The nozzles of artificial silk spinning machines e.g. machines for dry spinning cellulose acetate, are cleaned by means of pins containing soap or oil. By rubbing over with such pins any stopped-up holes in the nozzle, the impurity is rendered slippery and ejected by the spinning solution. The Specification as open to inspection under Sect. 91 (3) (a) refers also to pencils containing soap or oil and describes an arrangement comprising a spinning cell 1, Fig. 2 (Cancelled) fitted with a nozzle 2 a,ttached to a filter candle 3 clamped to a bridge 4 which may be turned, as shown, to render the nozzle accessible for cleaning. This subject-matter does not appear in the Specification as accepted.
Patent GB-778680-A (GB)
Title: Improvements in or relating to gyroscopic apparatus
Inventor: SEDFIELD HUGH BROUGHAM
IPC: G01C19/42
Filed: 1952-12-17
Abstract: 778,680. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Ltd. Nov. 6, 1953 [Dec. 17, 1952], No. 32001/52. Class 97(3) A gyroscopic device for measuring the rate of turn and lateral acceleration comprises a rotor movable about a shaft capable of restrained angular movement about any axis perpendicular to the shaft and capable of limited restrained lateral movement relative to the shaft. Magnetic pick-off means adjacent to the shaft indicate the magnitude of the displacement of the ends of the shaft. As shown, the rotor 1 rotates above shaft 7, which has slightly flexible lengths 14, 15 and is supported by balls 16, 17 and diaphragms 8, 9. Angular movement of the device about axes perpendicular to 3, 3 cause displacements of the ends of shaft 7 in opposite directions which are detected by the pick-offs 20, 21. Similarly, accelerations of the device laterally to 3, 3 cause like displacements of the end of shaft 7 which are detected by the pick-offs. A.C. signals generated at 20, 21 are applied, through amplifiers to indicating meters.
Patent GB-485596-A (GB)
Title: Improvements in or relating to electric welding
IPC: B23K11/14
Filed: 1936-11-23
Abstract: 485,596. Discharge tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 23, 1936, No. 32064. Convention date, Nov. 21, 1935. [Class 39 (i)] [Also in Group XXII] The header is electrically welded to the metal shell of an electron-discharge device by forming two concentric boss contacts on the parts, one being of greater electric resistance than the other, so as to serve as a shield for metal splashed by extension under welding pressure. The shell 16 may be provided with a flanged rim 7 engaging a circular ridge 10 on the closure 8. A thin metal ring 13, acting as the second contact has an edge 14 between the parts which is V-shaped and is flattened when the welding electrodes 11, 11<1> are pressed together. The ring 13 may be replaced by a plain ring fitting the inside of the shell, its lower end being in contact with the closure.
Patent GB-306991-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q1/36
Filed: 1927-11-30
Abstract: 306,991. Automatic Telephone Manufacturing Co., Ltd., and Saville, W. Nov. 30, 1927. Automatic exchange system; metering.-In repeater at the outgoing end of an inter-exchange junction, metering in response to reply of called party by temporary increase of current over the test wire is controlled by a relay which is energized over the back contacts of the release relay when the repeater is taken into use. The metering relay completes the circuit of the release relay and becomes locked until released bv current reversal on reply of called party, booster battery being applied to the test lead during its release. Impulse relay A operating over 34, 31, 18, 12, 11, 17 connects shunt field relay D and high impedance relay I across the outgoing junction 40, 41 at 21, and at 22 completes the circuit of metering relay J which at 37 connects ground from 19 to the test wire 10 and at 38 completes the circuit of the release relay B. This relay locks up over 27, 22, completes the locking circuit of J at 24 and places additional ground at 23 on the lower winding of A to replace ground at 34 which is transferred to the test wire when relay CE operates on arrival of the first impulse. CE connects the impulse springs 21 of A directly across the junction and falls back when impulsing ceases. When called party replies, D operates followed by DR which reverses the current in the calling line, substitutes booster battery over 15<1>, 37 for ground on the test wire, and at 20 opens the circuit of J and shunts it with a resistance to make it slow to release. When J releases, booster battery is disconnected and ground from 24 is connected to the test wire. Busy signal and release. If a busy condition is encountered at the distant exchange, busy tone and flash is sent back and during battery periods, I restores and completes a circuit for (r over conductor 41. G locks up over 29, disconnects the junction at 28, 32 to release the distant switches, and at 31 replaces ground on the lower winding of A by busy tone and flash conductor 13. Release relay B is held during battery periods by battery from 14 over its lower winding.
Patent GB-1394584-A (GB)
Title: Heterocyclic substituted xanthone carboxylic acid compounds
IPC: C07D311/86
Filed: 1972-07-12
Abstract: 1394584 Heterocyclic substituted xanthone-2- carboxylic acid compounds SYNTEX (USA) Inc 12 July 1972 ]17 May 1972] 32540/72 Heading C2C The invention comprises compounds of the formula wherein R is H or C 1 -C 5  alkyl, and Y is -O- or -S-; and non-toxic esters, amides and salts thereof. They may be obtained by (1) treating a compound of the formula wherein R<SP>1</SP> is C 1 -C 5  alkyl, with a α-chloroaldehyde or α-chloroketone in the presence of alkali metal hydride to give the corresponding compound of the Formula (7) wherein R is hydrogen or C 1 -C 5  alkyl and R<SP>1</SP> is as above defined; and (2) cyclizing a compound of Formula (7) with acid optionally followed by hydrolysis to give the corresponding 7-(3-furyl)- xanthone-2-carboxylic acid or the alkyl esters thereof; or (3) cyclizing a compound of Formula (7) with phosphorus pentasulphide optionally followed by hydrolysis to give the corresponding 7 - (3 - thienyl) - xanthone - 2 - carboxylic acid or the alkyl esters thereof; and (4) optionally converting a product of step (2) or (3) to its non-toxic ester, amide or salt. Examples are given for the production of the compounds. Pharmaceutical compositions comprise the compounds of Formula A above which may be administered orally, topically, parenterally or by inhalation, in conventional forms optionally together with other pharmaceutical agents. They are useful for inhibiting the effects of allergic reactions, also as smooth muscle relaxants and as vasodilators. The starting compounds of Formula (6) above are prepared by the process which comprises condensing p-allylphenol with a 1,3-dicarboalkoxy-4-halobenzene in the presence of cuprous oxide to give the corresponding 1,3-dicarboalkoxy - 4 - (p - allylphenyloxy) - benzene, base hydrolysing the latter to give the corresponding 1,3 - dicarboxy - 4 - (p - allylphenyloxy)- benzene, cyclizing the latter to give the corresponding 7 - allylxanthone - 2 - carboxylic acid, esterifying the latter to the acid alkyl ester thereof, and oxidizing the latter.
Patent GB-617750-A (GB)
Title: Improvements in or relating to rotary pumps for delivering liquids
IPC: F04C14/06
Filed: 1946-11-01
Abstract: 617,750. Rotary pumps. MEGATOR PUMPS & COMPRESSORS, Ltd., and McCOMBIE, F. W. Nov. 1, 1946, No. 32556. [Class 110 (ii)] A rotary pump has discharge openings at both the upper and lower ends of the pump casing 1, the upper discharge being closed when required. The pump which is described in Specification 592,432 has an inlet 2 and outlet connections 3, 11 with valves 15, 13 either, or both, of which may be closed. When valve 13 is closed and valve 15 is open, air can be pumped to the outlet 14 while the pump casing remains full of sealing and lubricating liquid. By closing the valve 15 and opening valve 13, the liquid can be expelled by air pressure through the outlet 11. The pump may then be sterilized or cleaned by another liquid, or dismantled. Additional air pressure may be secured by closing both valves 13, 15 and operating the pump to charge up an air vessel 17, which is released when, for instance, the valve 15 is opened. In lieu of a vessel 17, the pump casing may have its upper part enlarged.
Patent GB-846151-A (GB)
Title: Improvements in model making play bricks
IPC: A63H33/08
Filed: 1957-10-18
Abstract: 846,151. Model building blocks. HANSEN, R. Oct. 18, 1957 [Oct. 25, 1956], No. 32625/57. Class 132(3). Model building blocks which are preferably hollow comprise quoin, slab and connecting bricks which may be inter-engaged by means of projections and recesses provided on the bricks. As shown in Fig. 1d, at least one face 4b of a quoin brick 4 has a dovetailed recess, and dovetail section projections 6 are provided on the base of the recess and on the face 4d of the brick; the face 4c may be similar to the face 4b, and projections 6 may also be provided on a face 4a. A recess is formed on the underside of the brick which corresponds to a portion 5 on the brick's upper face. Fig. 1a shows a connecting brick having two plain side faces and two recessed faces similar to the face 4b of the brick, Fig. 1d. A slab brick 2, Fig. 1b, has projecting portions 2a which are dovetailed for engagement in part of the recessed faces of a quoin or connecting brick. Half bricks, Fig. 1c (not shown), are also provided. Fig. 2 shows an assembly of bricks, the quoin and connecting bricks having only one projection 6 in the recesses. The bricks may be moulded of a synthetic plastic and may be engaged under light pressure.
Patent GB-650214-A (GB)
Title: Improvements relating to apparatus for producing analgesia
IPC: A61M16/18
Filed: 1948-12-16
Abstract: 650,214. Anaesthetic apparatus. SIEBE, GORMAN & CO., Ltd., DAVIS, Sir R. H., and DAVIS, R. W. G. Dec. 16, 1948, No. 32628. [Class 81(ii)] Analgesia apparatus employing evaporable liquid has a temperature control of the mixture strength either in the air supply to the liquid or in an air supply byepassing the liquid or both. As applied to apparatus of the general type described in Specification 604,558 and in which air passed into a liquid container 1 through orifices 27, outwards through orifices 25 in a cylinder 24 and upwards through holes 21 to a central tube 19, the air which has thus been in contact with the liquid is mixed with air entering directly through a casing 18 before passing through a non- return valve 8 to the tube 6 leading to the mouthpiece. The path of the diluting air is partially obstructed by a valve disc 13 set in a tapered orifice 14 and movable longitudinally by a temperature-sensitive bellows 9 filled with volatile liquid. As the temperature rises the bellows expands and opens the valve, so admitting a larger proportion of air. Alternatively the control may be in the path of air passing over the anaesthetic or both paths may be controlled simultaneously. In the device shown, the liquid container 1 is provided internally with a cylindrical wick 28 so that the area from which evaporation can take place remains substantially constant if the container is tilted.
Patent GB-783939-A (GB)
Title: Motor bicycle with pressed sheet metal frame
IPC: B62M7/04
Filed: 1955-11-15
Abstract: 783,939. Spray carburetters; purifying charge. INNOCENTI SOC. GENERALE PER L'lNDUSTRIA METALLURGICA E. MECCANICA. Nov. 15, 1955 [Nov. 19, 1954], No. 32656/55. Classes 7(2) and 7(3) [Also in Group XXXI] A motor cycle has a central frame porion of box-like shape provided with an aperture 5 for admitting air into the chamber c<SP>1</SP> which encloses a cylindrical filter 6 through which air flows to a sleeve 7 connected to the carburetter by a hose (not shown).. The filter 6 is secured to a choke sleeve 6a which is rotatably operated by a handle 6c. The sleeve 6a is formed with four slots 6b which register with slots in the sleeve 7. By rotating the sleeve 6a the slots in the two sleeves are staggered to close the air flow to the filter.
Patent GB-949475-A (GB)
Title: Method and apparatus for making a glass article such as a cathode ray tube envelope
IPC: C03B19/04
Filed: 1960-09-23
Abstract: <PICT:0949475/C1/1> <PICT:0949475/C1/2> In the manufacture of a glass article, such as a cathode-ray tube envelope, by centrifugal moulding of a molten glass gob in a rotatable mould, a portion of the gob is pressed interiorly of the stationary mould by a pressing plunger, the pressed portion chilled to a substantially rigid condition and the pressing plunger withdrawn from contact with the chilled portion of the gob prior to rotation of the mould for centrifugally casting the remaining unchilled portions of the gob to the mould shape.  The mould 10, comprising a hollow body 11 and extension 12 to form a cathode-ray tube envelope with noncircular body and apex, is mounted on a vertical shaft 13 rotated from a motor 15 by belt 16 and pulley 14. An ejector valve 18 closes the centre of the mould.  The pressing tool 20 is mounted on a shaft 21 on a rock arm 22 pivotally mounted on rod 23 from an inoperative position while a gob 40 of glass is deposited in the mould to the dot-dash operative position.  The rod 23 is joined to the piston 25 reciprocating in cylinder 24 by fluid supply lines 26, 27 to move the tool 20 into and out of pressing position.  The tool 20 comprises a cylindrical section 20a to form the centre of the envelope, a frusto-conical section 20b with lugs 20c to form the apex 40b and a cylindrical section 20d to shape the upper part 40a of the gob 40.  During the pressing, the mould 10 is held against rotation by a locking device 30 consisting of a lug 32 on air cylinder 31 which projects into a recess 12a, the mould 10 and tool 20 being thereby aligned. After pressing, the tool 20 is withdrawn slightly to the position shown in Fig. 3A, the lug 32 withdrawn and the mould 10 rotated rapidly to spread the remaining glass 40a over the mould 10, the tool 20 being completely withdrawn once rotation has started.  The body 11 is formed with a ledge 11a, above which the glass is removed for attachment to a face plate, and a retaining ring 17 prevents accidental discharge of the glass during rotation. In a modification, not shown, the apex of the envelope is of rectangular shape but has no indentations.
Patent GB-1107538-A (GB)
Title: Manufacture of carbonyl bisurethanes
Inventor: KERRIGAN VINCENT
IPC: C07C273/18
Filed: 1965-07-30
Abstract: Carbonyl bisurethanes are obtained by reacting a N-unsubstituted carbamic ester with phosgene in the absence of acid-binding agents and in a polar organic liquid inert to phosgene and containing at least one oxygen atom in the molecule as solvent.  The reaction may be effected by heating the reactants under reflux, suitable oxygenated solvents being carboxylic acid esters, ethers and/or N,N-disubstituted carbamic esters, optionally in admixture with other non-oxygenated solvents which are inert to phosgene.
Patent GB-732824-A (GB)
Title: Improvements in or relating to bayonets
IPC: F41C27/18
Filed: 1953-11-25
Abstract: 732,824. Bayonets. IMPERIAL KNIFE CO., Inc. Nov. 25, 1953 [Dec. 11, 1952], No. 32739/53. Class 119. Relates to a bayonet with a blade 12, Figs. 1, 4 having an integral shank 14 of width somewhat less than that of the blade, the bayonet having a T-slot in the-handle to receive a T-piece on a rifle and a pin 30 on a guard 18 which enters a hole in the gas chamber of the rifle. According to the invention two guide pieces 50, Figs. 3, 4 are mounted on opposite sides of the shank 14 and have portions with facing grooves 60 located above the shank so that these portions in conjunction with the shank 14 form the T- slot. A spring-urged lever 32 pivoted at 40 on the shank 14 has at one end a pad 36 for receiving pressure from the fingers and at the other end latching fingers 44 which pass through vertical grooves 62 in the guide pieces 50 to extend into the T-slot and serve to lock the bayonet on the rifle. The rear edges of the fingers 44 are rounded so that the T-piece on insertion will cam the fingers 44 down and after passing them, the fingers 44 snap back into place behind the T-piece. The shank 14 passes through an aperture in the guard 18 which is held against shoulders 20 by plates 22, Fig. 4, secured on opposite sides of the shank 14 by a rivet 24. The plates are first outwardly bent and then pressed inwardly against the shank 14 to exert pressure on the guard 18.
Patent GB-703148-A (GB)
Title: Improvements in or relating to signalling systems employed in telecommunication systems having pulse modulation
IPC: H04J3/12
Filed: 1952-12-24
Abstract: 703,148. Multiplex pulse signalling. PINET, A. E. Dec. 24, 1952 [March 13, 1952], No. 32748/52. Class 40 (5)] Signalling in a communication channel of a pulse multiple system, using amplitude or duration modulated pulses, is effected by a D.C. modulation and at the receiver the signalling device is operated by the difference between a D.C. voltage derived by rectifying a signal voltage derived from the received pulses and a second D.C. voltage also derived therefrom but having a constant average value. In the embodiment described, one of the channel circuits 1 at the transmitter comprises a pulse duration modulating valve 16. The input parallel-sided trapezoidal pulses from terminals 4 are applied to the cathode 17 and are variably clipped in dependence upon the modulating voltage applied from source 2 to the control grid 18. The resulting duration modulated pulses at the anode 19 are fed to the line 6 from the channel junction 5. For calling &c. the grid potential is changed by operating a relay 25, 26, to shortcircuit resistor 23 in the grid potential divider 21 ... 23. This results in the production of pulses of maximum width, unaffected by any modulation present at source 4. At the receiver channel junction 7, synchronizing pulses are separated in circuit 8 and channel gating pulses produced therefrom which are applied in positive sense to the control grid 28 of channel gating valve 27. The selected pulse train is fed to the low-pass filter 11 and the recovered modulation fed to an output valve 37 and circuit 12. The resonant transformer 31 in the anode circuit of valve 27 picks out the pulse recurrence frequency component of the channel train which is rectified at 36 to produce a D.C. voltage across resistance 34. The gating pulse means D.C. output from the cathode of valve 27 produces a steady voltage across resistance 35 which is in series opposition with resistance 34 in the grid circuit of valve 37. When calling, &c. signals are absent the net voltage across resistances 34, 35 is zero and the anode current of valve 37 in winding 41 of relay 43 is such as to leave the relay unoperated an opposing flux being produced by the steady current in a second winding 42. This balance is upset when calling signals are received and relay 43 operates to close the circuit of signalling current generator 44 at contacts 45. The calling relay 25, 26 at the transmitter may be replaced by a voltage source derived by rectification from an A.C. ringing current, Fig. 4 (not shown). The circuits can be used for pulse amplitude modulation systems by supplying the terminals 4 with rectangular pulses, Figs. 3 e, f, g (not shown).