baber/WOPTO huggingface dataset:
Patent GB-1164578-A (GB)
Title: Process for Hydrolyzing Polyepoxide Resins
Inventor: WALKER EDDIE BOB
IPC: C08G59/14
Filed: 1968-07-08
Abstract: 1,164,578. Hydrolysis of epoxy resins. DOW CHEMICAL CO. 8 July, 1968, No. 32553/68. Heading C3B. Epoxy resins, especially polyglycidyl ethers of polyhydric phenols and polyhydric alcohols, are hydrolysed by forming a solution of the epoxy resin in a water-immiscible solvent and mixing it with an aqueous proton-containing acid catalyst, e.g. a o.2 to 0.5% by wt. solution of sulphuric, hydrochloric or phosphoric acid or of an aromatic sulphonic acid. The water immiscible solvent may be capable of dissolving, at room temperature, not more than 25% of its weight of the aqueous acid solution. A preferred solvent is a mixture of 65% by wt. of toluene and 35% by wt. of isoamyl alcohol. Hydrolysis may take place at 50-200‹ C. at the autogenous or superatmospheric pressure. The hydrolysed product may be separated from the aqueous phase, washed with water and recovered from the organic phase by distillation.
Patent GB-392935-A (GB)
Title: New or improved burglary preventative or alarm apparatus
IPC: G08B13/22
Filed: 1931-11-25
Abstract: 392,935. Burglar and like alarms. PEARSON, J., 31, Clifford Street, and BAINTON, W., 54, Rusholme Road, both in Chorlton,- on - Medlock, Manchester. Nov. 25, 1931, No. 32651. [Class 118 (i).] Relates to window protecting devices of thekind in which a shutter c, Figs. 1 and 2, is held: in the raised or inoperative position by a catch f which is withdrawn to release the shutter by an electric circuit controlled by a switch which is actuated when the window is broken, an alarm being operated at the same time. According to the invention, the circuit is controlled by one or more mercury switches k carried by a rod or rods l of a frangible rigid. material such as glass. In the form shown in Fig. 1, the catch f is slidably mounted in a bracket g and is normally kept in engagement. with a loop e on the shutter by a spring g2. The latch is connected by a pivoted lever h to the armature i of an electromagnet j which is in circuit with the switches k. As shown diagrammatically in Fig. 5, the coil j is energized. when the switches k are closed and the consequential movement of the armature effects the release of the shutter. Mounted above, the shutter is a further pivoted mercury switch p which is made to rotate, when the shutter falls, by a weighted lever o<1> and in rotating to close the circuit of a siren q, warning lamp r, and a flashing signal s. The switch is normally prevented from closing this circuit. by a vertical slidable member t, the lower end of which bears against the upper edge of the shutter. The complete circuit is broken by a. pivoted mercury switch u, Fig. 2, which is actuated to break the circuit upon the opening of a door v giving access to the window from the inside. One or more lamps w, preferably neon tubes, give a visual indication that the: apparatus is in order to function.
Patent GB-521163-A (GB)
Title: Improvements relating to shock absorbers
IPC: F16F9/36
Filed: 1938-11-10
Abstract: 521,163. Hydraulic shock-absorbers. TRIGGS, W. W. (Gabriel Co.). Nov. 10, 1938, No. 32661. [Class 108 (iii)] [Also in Group XXVI] An hydraulic shockabsorber for motor cars is provided with sealing devices 238, 240 and 246 for preventing escape of oil along the piston rod. The seal 238 in the pressure cylinder 229 comprises an elastic sleeve held, in position by a plate 239, and the seal 240 in the oil reservoir is retained between two conical plates 241, 242 pressed together by a spring 245. The seal 246 in a reduced end 232 of the cylinder is also under the compression of the spring 245 acting on a conical plate 247. The surface of the seal around the piston rod may be serrated or grooved and the seals may surround the rod with an initial compression.
Patent GB-365674-A (GB)
Title: Non stretchable cords, laces and the like made of linen thread and method of producing same
IPC: D07B1/16
Filed: 1930-10-31
Abstract: 365,674. Laces. BœNGER, A., 67, Untere Lichtenplatzerstrasse, Barmen, Germany. Oct. 31,1930,No. 32753. [Class 43.] Cords, laces, and the like made of linen threads by braiding, knitting, weaving, or plaiting are subsequently stretched by lustring so that they cannot further stretch in use. The cord &c. may be treated with rubber, e.g. a latex solution, while it is being made, or rubber may be introduced into the cord &c., upon a bundle of threads over which a covering is braided or otherwise formed.
Patent GB-395566-A (GB)
Title: Improvements in connecting rods for use with internal combustion engines
IPC: F16C7/04
Filed: 1932-11-19
Abstract: 395,566. Driving-gear. RIES, G., 1A, Leopoldstrasse, Karlsruhe, Baden, Germany. Nov. 19, 1932, No. 32783. Convention date, Nov. 20, 1931. [Class 7 (ii).] An adjustable spring a is supported between a plate d on the connecting- rod e and a block b fixed on the crank pin. The connecting-rod has a forked end f passing through holes in the block and elastic stops i, k limit the free movement of the rod. By this means a constant compression pressure is obtained. In a modication two springs l, Fig. 3, are used mounted between the adjustable plate d on the rod e and extensions on the block b surrounding the crank pin. A terminal exhaust port p is not uncovered on the suction stroke but owing to the compression of the springs on the expansion stroke is open to allow a preliminary exhaust. The Specification as open to inspection under Sect. 91 also states that the connecting-rod may be telescopic with springs interposed between the parts. This subject-matter does not appear in the Specification as accepted.
Patent GB-786746-A (GB)
Title: Improvements in dividing heads
Inventor: WARREN MARTIN ERIC WILLIAM
IPC: B23Q16/02
Filed: 1954-11-12
Abstract: 786,746. Machine-tool details. KING (ENGINEERS), Ltd., M. Nov. 11, 1955 [Nov. 12, 1954], No. 32829/54. Class 83 (3). A dividing-head comprises a spindle 2 indexed through a worm 6 and a worm-wheel 5 on the spindle, by a main indexing-mechanism, e.g. an index-plate .8, and an auxiliary indexing- mechanism for moving the worm 6 axially in each direction to further rotate the worm-wheel 5 and thereby modify the main setting of spindle 2 produced by rotating the worm. The latter is keyed at 18 for rotation with the main indexing-spindle 7 and bears in a toothed-sleeve 13 driven by a pinion 20 to displace the worm axially under control of an auxiliary index-plate on the pinion-shaft and a co-operating pointer on the casing 1. Alternatively, the worm may be shifted by a screw-and-fork mechanism.
Patent GB-646998-A (GB)
Title: Improvements in and relating to hot water boilers for central heating systems
IPC: F24H1/32
Filed: 1947-12-13
Abstract: 646,998. Hot-water boilers. LANGCLAAN, J. A. Dec. 13, 1947, No. 32904. Convention date, Sept. 3. '[Class 64(i)] A hot-water boiler 3a, 3b in which the supply and return pipes 5a, 5b and 4a, 4b from a central heating system are respectively connected to the upper and lower portions of the boiler water space is associated with a waste heat boiler 7 receiving the combustion gases from the main boiler and comprising a plurality of steel fire-tubes 10 extending through the water space of the waste heat boiler between top and bottom headers 11, 9, the water space of the waste heat boiler being in communication with the water space of the main boiler through a pipe 15a opening into the main boiler in the upper half thereof. The combustion gases from the main boiler pass downwardly through a duct 8, into the header 9, and upwardly through the fire-tubes 10 to the header 11 which has an outlet leading to the chimney and controlled by a flap valve 12. A flapvalve 13 in the header 11 enables the combustion gases to be discharged directly to the chimney. The waste heat boiler may be connected to either or both sections 3a, 3b of the main boiler and also has a connection 14 leading to the flow pipe 6 but in the form shown, no return connection is provided, all the water in the waste heat boiler coming directly from the main boiler. A return connection to the waste heat boiler may however be provided.
Patent GB-950394-A (GB)
Title: Lifting clamp
IPC: B66C1/64
Filed: 1962-08-28
Abstract: 950,394. Lifting dogs. R. L. RENFROE. Aug. 28, 1962 [Aug. 28, 1961], No. 32953/62. Heading B8H. When a vertical pull is applied to a clevis 32, Fig. 1, a lever 33 pivots clockwise about its mounting 34 on a clamp body 12 and rotates a jaw 17 anticlockwise about a pivot pin 19 so that a beam 15 is gripped between the jaw 17 and an opposite jaw 18. When the load is set down the lever 33 rotates anti-clockwise allowing a bolt 42 to slide down a slot 41 thus tilting the clevis 32 so that a pin 46 slides down a cam surface 51 and into a notch 52, Fig. 2. In rotating anticlockwise lever 33 moves the jaw 17 to a load-releasing position in which it is rocked by pin 42 and notch 52. The clamp may now be lifted from the load with the slot between the jaws vertically disposed since the lift is applied in a vertical plane which passes through the bolt 34. The clamp may also be used to raise a beam from the position shown in Fig. 6 to that shown in Fig. 8. In the latter position the clevis 32 abuts a stop 47 on the lever. If the clamp is lowered from the position shown in Fig. 8 the beam will settle on to its end. By reversing this procedure a beam may be turned from the position shown in Fig. 8 to that shown in Fig. 6.
Patent GB-202897-A (GB)
Title: Improvements in and relating to electric switches
IPC: H02B11/04
Filed: 1922-12-04
Abstract: 202,897. British Thomson - Houston Co., Ltd., (General Electric Co.). Dec. 4, 1922. Contacts.-Self-aligning contacts, particularly suitable for switches of the truck type, comprise one or more pairs of fingers 21 pressed apart by one or more springs 28 and loosely mounted on supporting members 14, shown partly cut away in the Figure, which are pivoted at 13 to the terminal 9 and are normally kept in alignment therewith by springs 19 acting on a bar 16 fixed to the members 14. Connection of the fingers 21 to the members 14 is effected by pins 26 carried by the members 14 engaging slots 27 in brackets 25 carried by the fingers. The fingers 21 are also connected directly to the terminal 9 by flexible leads 22. To provide for want of alignment of the fixed and movable terminals 1, 9 in a direction perpendicular to the paper, the fixed contacts 8 may be made wider than the fingers 21.
Patent GB-627486-A (GB)
Title: Apparatus for indicating complex waves in visual form
IPC: G10L21/06
Filed: 1945-12-07
Abstract: 627,486. Frequency analysis. TOMLINS, F. C. (Western Electric Co., Inc.). Dec. 7, 1945, No. 33177. [Class 37] [Also in Groups XV, XXXVIII and XL (a)] A complex wave is analysed into its component frequencies, the intensity and time of occurrence being visibly indicated. As applied to speech waves, the corresponding electric signal is applied to modulate the intensity of a cathode - ray beam through a frequency analyser 4, 5, 6, Fig. 1, the beam being deflected across the screen once for each traverse of the frequency range so that each component frequency is represented by a dot whose position vertically of the screen corresponds to frequency and whose intensity corresponds to magnitude of frequency. The cathode-ray screen rotates so as to give an indication of the times of occurrence, duration and cessation of each component frequency. The record shown in Fig. 2 is said to correspond to the word "two" and may be used to instruct deaf persons to articulate or assist them to under. stand sounds. In a modification, Fig. 3, the cathode-ray beam may move in a circular orbit to provide the indication of times of occurrence, duration and cessation, the tube being rotated in the opposite direction to provide a stationary viewing area 2. Permanent records may be made by recording the sound, e.g. by magnetizing a tape 33, Fig, 4, and repeatedly heterodyning the signal produced thereby and passing it through a filter 5 to produce a record by a stylus 40 on paper round a drum 31, the rotation of the drum varying the frequency of the heterodyning oscillation 3, so that each component frequency is recorded individually on an appropriate line of the record.
Patent GB-520606-A (GB)
Title: Improvements in or relating to radio direction finders
IPC: G01S1/02
Filed: 1938-11-15
Abstract: 520,606. Directive wireless signalling. STANDARD TELEPHONES & CABLES, Ltd. (Materiel Telephonique Soc. Anon.) Nov. 15, 1938, No. 33189. [Class 40 (v)] ' In order to avoid " night-error " in directionfinding, only the first or " direct-path " portion of a transmitted signal is allowed to operate the indicator, the later or " reflected " part of'the signal being prevented from getting through. The initial part of the signal is used to vary the charge on a storage condenser, the potential of which is maintained constant for the remainder of the signal and is then restored to normal. The arrangement is designed for use with the standard, as distinct from the " impulse " type of transmission and ordinary receiving aerials can be used. The signal is received on a directive aerial 31, and simultaneously on a non-directive aerial 32. The receiving circuit 11 of the frame aerial is normally blocked by a negative grid-bias, but this is released for a very short interval of time by the signal received by the non-directive aerial 32. The latter signal passes through a receiving circuit 12 and is used to trigger a gasfilled valve 47, and so discharge a condenser 51 during a period of about one five-thousandth of a second. This produces a rectangular waveform which is applied through a transformer 61 to release the bias on the amplifier 11 for that period of time, and so allow the initial part of the signal to pass through to the phones 81 at a strength which is determined by the orientation of the frame aerial 31. The part of the signal which passes through reduces the charge on the condenser 52 by a certain amount, but the residual charge remains constant during the remainder of the signal, and is only restored during the interval between two signals. Modulation potentials are applied from a source 73 and are heard at a strength proportional to the setting of the aerial 31.
Patent GB-1186615-A (GB)
Title: Copolymers of Olefines with Cycloalkylidene Cyclopentadienes
IPC: B29C48/03
Filed: 1967-07-19
Abstract: 1,186,615. Copolymers of olefins and a cycloalkylidene cyclopentadiene. SOC. NATIONALE DES PETROLES D'AQUITAINE. 19 July, 1967 [22 July, 1966], No. 33253/67. Heading C3P. An elastomeric copolymer of one or more olefins with a cycloalkylidene cyclopentadiene is made by copolymerizing the monomers in the presence of a catalyst comprising an organometallic compound of one or more metals of Group I, II, or III of the Periodic Table and a halogenated compound of a transition metal selected from Group IV, V, or VI. The copolymerization is preferably effected in a hydrocarbon or halogenated hydrocarbon diluent and the catalyst may be formed in situ or preformed and " aged." The olefin may be ethylene and/or propylene. The cycloalkylidene radical may be cyclopropylidene, cyclopentylidene, or cyclohexylidene. Terpolymers, soluble in boiling heptane are exemplified. The terpolymers are vulcanized with a mix consisting of carbon black, ZnO, sulphur, mercaptobenzthiazole, and tetramethylthiuram disulphide.
Patent GB-639239-A (GB)
Title: Process for the utilisation of blast furnace slag in rotary cement furnaces
IPC: C04B7/147
Filed: 1947-12-17
Abstract: In the manufacture of cement, basic or acidic blast furnace slag, previously dried and finely ground is introduced directly into the combustion zone of the rotary kiln.  In order to counteract the increased acidity imparted by the slag, increased amounts of limestone are added through the normal channels, the slag being introduced separately or in admixture with the fuel. Specification 639,240 is referred to.
Patent GB-363075-A (GB)
Title: A method of obtaining good contact between conductors of aluminium and its alloys
IPC: H01R4/62
Filed: 1930-11-06
Abstract: 363,075. Couplings. VEREINIGTE ALUMINIUM-WERKE AKT.-GES., Lautawerk, Lausitz, Germany. Nov. 6, 1930, No. 33425. Convention date, Feb. 17. [Class 38 (i).] A joint between conductors of aluminium or its alloys is made by applying to the adjacent surfaces a paste containing filings or chips of a metal that will penetrate the film of oxide present on the surfaces. A paste of paraffin, petroleum jelly, tallow, &c. with powdered graphite or carbon may be employed and the filings &c. may be of a metal harder than the conductors. The conductors have flanges for bolting together.
Patent GB-1473932-A (GB)
Title: Cribbage board
IPC: A63F1/18
Filed: 1974-07-30
Abstract: 1473932 Counter for cribbage game R E CYRE and R A CYRE 30 July 1974 33530/74 Heading G4B [Also in Division A6] A counter for cribbage enables a total score between zero and 121 to be indicated by the alignment of one of 122 numbered holes 27 circumferentially arranged on a counter plate 12 with a registration mark 31 on a transparent cover plate 13: the cover plate allows access via an arcuate slot 28 to thirty of said numbered holes so that a preselected number between 0 and 29 may be added to the total score indicated by engaging with any suitable pointed instrument a hole lying adjacent the desired number on a scale 29 displayed on the cover plate 13, and moving with a dialling action to abut the instrument with the slot extremity. The counter is rotatably located on a recess 18 of the baseplate, which contains the projection 27.1 to retard rotation of said counter, and the cover plate 13 is located on the seat 19 and prevented from moving relative to the base-plate by the pins 22. The three said components are constrained axially by the rivet 23. In an alternative embodiment (not shown) a cover plate contains a second arcuate slot spaced diametrically from the first and allowing access to a second circular series of numbered holes contained on an annular counter plate rotatably located concentric to the counter disc in a modified base.
Patent GB-1057528-A (GB)
Title: Process for the manufacture of cyanoacetic acid esters
Filed: 1965-08-05
Abstract: Cyanoacetic acid esters of the general formula CN-CH2-COOR, in which R represents an optionally substituted aliphatic, cycloaliphatic or aralkyl radical, are prepared by reacting at least the equivalent proportion of a halogenoacetic acid ester of the formula Hal-CH2-COOR, in which R is as defined above, with an alkali metal cyanide in finely divided form in an inert solvent in the presence of hydrogen cyanide at a temperature of 20 DEG  to 250 DEG  C. and under a pressure of 1 to 6 atmospheres, completing the reaction, separating precipitated alkali metal halide, evaporating the inert solvent from the remaining solution, and purifying the crude cyanoacetic acid ester by distilling it.  Specified inert solvents are dimethylformamide, dimethyl sulphoxide, and the alcohol corresponding to the alcoholic component of the halogenoacetic acid ester. Prior to being purified by distillation, the cyanoacetic acid ester may be admixed with 0.01 to 1% by weight of a tertiary base, e.g. triethanolamine, triphenylamine or quinoline.
Patent GB-448230-A (GB)
Title: A new adjustable pipe and stud wrench with single lever and self-acting jaw
IPC: B25B13/50
Filed: 1935-12-05
Abstract: 448,230. Wrenches. JEROME, E., 58, Chessel Avenue, Bitterne, Southampton. Dec. 5, 1935, No. 33686. [Class 61 (iii)] An adjustable pipe wrench has the fixed jaw A of V-hook form without teeth and the movable jaw F adjustable by means of a nut I and screw J pivoted thereto at K and provided with a toothed jaw attachment C movable transversely in an inclined direction. A pin N fixed in the jaw F engages a hole in a tongue on the jaw attachment C and the tongue is guided in a channel in the jaw F, a transverse pin D engaging a slot in the tongue and a leaf spring E bearing against the front of the part C. Specifications 101,195, 144,829, and 189,904, [all in Class 61 (iii)], are referred to.
Patent GB-1458628-A (GB)
Title: Extraction method for odour and flavour producing ingedients of  foods and flowers and products produced
IPC: A23L27/10
Filed: 1974-08-01
Abstract: 1458628 Natural flavouring concentrates ASAHI KASEI KOGYO KK 1 Aug 1974 [6 Aug 1973 16 Feb 1974 13 June 1974] 33921/ 74 Heading A2B Natural odour and flavour concentrates of flowers and food are produced by contacting said flowers or food with liquid dimethyl ether with or without water present i.e. at less than -25‹C and normal pressure or -25‹C to 25‹C and 1-4 atmospheres or above 25‹C and greater than 4 atm., and removing the dimethyl ether and water from the resulting solution to produce the required extract. In particular when extracting tea, coffee, bonito or dried shiitake the residue from the dimethyl ether extraction may be extracted with water which is then evaporated to produce a further extract (i.e. as in "instant" tea or coffee) to which is added at least a portion of the initial dimethyl ether extract, which may have had only part of the dimethyl ether and water removed, finally removing any remaining dimethyl ether or water. Preferred foods and flavors include pepper, nutmeg, turmeric, laurel, anise, thyme, coffee, tea, dried bonito, dried shiitake, lemon, lime, citran, roast chicken, roast beef, roast pork, egg yolk or a flaver belonging to Rosaceae, Oleaceae, or Compositae.
Patent GB-974279-A (GB)
Title: Means for aiding withdrawal of yarn from yarn packages
IPC: B65H57/18
Filed: 1963-09-23
Abstract: 974,279. Unwinding yarns. K. NIMTZ. Sept.23, 1963 [Feb. 4, 1963; Aug. 29, 1963], No. 37420/63. Heading D1J. As yarn is drawn off the package 8, Fig. 5, it passes over the margin of an elastically yielding disc 15 that is flexed by the presence of the yarn. The disc 15 may be (a) flat, (b) taper in thickness to a minimum at its periphery, (c) have an upwardly curved periphery, (d) corrugated as shown. The edge of the disc may be reinforced by beading and it may have one or more notches therein. In Fig. 11, the packages 110, 111 are mounted in frames 116, 115, the upper frame carrying a ring 113 preventing the elastically yielding disc from being deflected downwardly. The yarn 117 unwinding from the package 110 runs through the gap between the ring 113 and the edge of the disc shown flexed upwardly at 112 by the presence of the yarn. The auxiliary disc 107 facilitates unwinding of the yarn when the package 110 nears exhaustion. The disc 15 may be reinforced at its centre by stiffening discs loosely or adhesively associated with the disc 15. The disc 15 may rest on a spider. The disc 15 may be of synthetic plastic material, animal skin, parchment, or paper.