baber/WOPTO huggingface dataset:
Patent GB-841324-A (GB)
Title: Polymerisation of ethylene
IPC: C08F110/02
Filed: 1956-11-23
Abstract: Polyethylene is made by polymerizing ethylene in the presence of a "Ziegler type" polymerization catalyst a polyhalomethane and optionally an inert diluent or organic solvent.  The catalyst is selected from those disclosed in Specifications 799,392, 799,823, or 801,031, or compounds of metals of Groups IV-A, V-A, and VI-A reduced by zinc or alkaline earth metals or other earth metals including the rare earths or their hydrides.  Specified polyhalomethanes are carbon tetrachloride, carbon tetrabromide, chloroform, iodoform, bromoform, and dichloro-methane.  The catalystis generally formed in situ in the reactor, in the presence of an inert organic liquid, the polyhalomethane added after the catalyst is formed, and the ethylene then passed into the reactor.  In Example 1 ethylene is polymerized in the presence of a catalyst formed by reacting trusobutyl aluminium and titranium tetrachloride in kerosene and subsequently adding carbon tetrachloride prior to the introduction of ethylene.  Whilst in Example 2 the same compounds are employed as in Example 1 but in different proportions.
Patent GB-522457-A (GB)
Title: Improvements in or relating to systems of simultaneous telephony on a number of lines
IPC: H04M9/00
Filed: 1938-12-08
Abstract: 522,457. Exchange systems. CRETI, M. Dec. 8, 1938, No. 35900. [Class 40 (iv)] Two or more exchange lines I, II share a common substation set to which they are connected by relays R', R" which are energized by ringing current and then lock up to the exchange battery. Assuming that a call has been set up in the usual way over one line, the subscriber can hold that connection by bridging the line by a resistance. such as W<SP>1</SP>, release the corresponding relay R' by the key A<SP>1</SP>, bridge the relay R" across the other line without the condenser K" to call the exchange and connect that substation set to that line and then estab- , lish any wanted connection, e.g., by dialling at D. The relay R' can then be re-operated to enable the three parties to converse. Local extension stations can be brought in by means of keys 6 .. 8 which complete line circuits to and so operate buzzers at the wanted stations. The called extension parties simply' disconnect the buzzers at 50 ... 52. The extension stations can call the substation by means of keys 11 ... 13 and can be connected to the exchange lines. Lamps L', L" indicate which lines are in use. By means of a switch S the substation can make use of an ordinary handset or of sensitive microphones M and amplifier and loud-speaker AM, AL, the amplifier being switched on by the relays R<SP>1</SP>, R".
Patent GB-468141-A (GB)
Title: Improvements in shuttering devices for the building of ferro concrete structures
IPC: E04G13/02
Filed: 1935-12-30
Abstract: 468,141. Beam and column centring. McALPINE, SIR M. Dec. 30, 1935, No. 35991. [Class 20 (ii)] [Also in Group XXV] Shuttering for con crete columns comprises two opposed rectangu lar plates a, to the longitudinal edges of which are adjustably secured angle-member c, and two other oppos ed rectangular plate: b abutting against the flanges of the angle members and adjust ably supported thereoi by slotted projections b<1> engaging over pins carried by projections c' on the flanges of the angle-bars c. Various widths of filling-pieces b<3> may be used with the plates b for different widths of column. The side plates a and angle bars are provided with registering keyhole slots a<1> adapted to receive keyed bolts d<1>, Fig. 7, the parts being clamped by cam nuts d<5> engaging outer projections d<4> on the bolts. The side plates a are provided with stiffeners e, with extensions a<3>, and with bearers f<2> to support the beam centring. The angle-members c are also provided with extensions c<5> forming U-shaped apertures f<6> the size of the beam to be cast. The anglemembers c are also apertured at a<2> to receive further bearers f <2> disposed at right-angles to those carried by the plates a. The beam centring comprises stiffened side plates g with adjustable angle-plates g<1> and baseplates g<2> forming the base of the beam mould, the base angle-stiffeners having extension portions g<6> which take on the bearers f<2> disposed on the column shutters. The side plates g and base-plate g<2> are also provided with adjustable extensions g<8>, g<9>, respectively, to fill the gap between the members of the beam mould and the U-shaped apertures f<6> in the extensions of the column mould. Stop plates l, provided with hooks, are used to stop off the column mould on the sides where beams are not to be cast. The beams may be cast at other angles than right-angles to the column by using beam base-plates with extensions having tapered front edges as shown in Fig. 11. The edges of the columns and the beams may be bevelled or curved by the use of filler-pieces in the angles of the moulds. The centres of the beam shutters may be further supported by adjustable props extending upwardly from the floor.
Patent GB-1074844-A (GB)
Title: Improvements in or relating to timepieces
IPC: G04B19/02
Filed: 1965-08-23
Abstract: 1,74,844. Clocks and watches. SOCIETE SUISSE POUR L'INDUSTRIE HORLOGERE S.A. Aug. 23, 1965 [Aug. 27, 1964], No. 36018/65. Heading G3T. A timepiece driven by a balance 1 which is maintained electrically by means (not shown), has hour, minute, and seconds hands 18, 14, 8 coaxial (in the embodiment shown) with a wheel 6. The hands are linked by a time train so that none of them can be moved without the other two moving correspondingly. The pulling out of a hands setting knob 19 engages a crown wheel 20 with a wheel 21 connected to the train, to enable the hands to be set, and simultaneously to disconnect the drive from the balance 1 so that this continues to run freely. The balance carries an anchor 2 which engages a drive wheel 3 on arbor 5. This arbor is carried at one end in a movable bearing borne by a lever 35a which is actuated through a lever 26 by movement of the knob to disengage the drive wheel 3 from the train when setting the hands. Simultaneously with this operation, an indexing pawl 35 engages the rim of a disc carried by the seconds wheel 6, and drops into a notch 34 each time the seconds hand reaches the twelve o'clock position, whereby a positive indication for the hands setting operation is obtained.
Patent GB-1120352-A (GB)
Title: Vulcanisable olefin compositions
IPC: C08K5/14
Filed: 1965-08-23
Abstract: Vulcanizable compositions comprise an elastomeric copolymer of ethylene, another alphaolefin and optionally a cyclic or acyclic non-conjugated polyene, a reinforcing filler, a free radical acceptor and a peroxy ether of formula <FORM:1120352/C3/1> where n is 0 or 1, R1, R2 and R3 are C1- 10 saturated or aromatic hydrocarbon groups or halogen substitution products thereof, R1 being alternatively hydrogen, and R1 is a C1- 10 hydrocarbon group or a further ether or peroxyether group, optionally halogen substituted; or modifications thereof in which R1 and R2 are joined to form a cycloalkyl group or R2 is replaced by <FORM:1120352/C3/2> where R4 is a C1- 10 alkyl or t.-alkylaryl group and R11 is a C1- 10 saturated, unsaturated or aromatic group.  The polymers may be derived from ethylene, propylene or butene-1 and optionally cyclooctadiene - 1,5, cyclooctadiene - 1,4, cyclododecadiene - 1,6, cyclododecadiene - 1,7, cyclododecatriene - 1,5,9, cycloheptadiene - 1,6, norbornadiene, methylene norbornene, hexadiene-1,5, 2 - methylpentadiene - 1,4, 5 - methyltetrahydroindene or dicyclopentadiene.  Specified free radical acceptors are sulphur, quinonic and vinyl compounds, unsaturated polymers, dimaleimides and furfural and derivatives thereof. Many suitable peroxy ethers are specified and examples describe compositions comprising ethylene/propylene copolymers, sulphur or 1,3-difurfurylidene acetone, carbon black, zinc oxide, kaolin and 1-t.-butylperoxy-1-t.-butoxyethane, 2 - t. - butylperoxy - 2 - t. - butoxypropane, 1 - t. - butoxy - 1 - cumyl peroxide, a ,a 1 - di - (1 - t. - butoxy - ethylperoxy) - 1,4-diisopropylbenzene, 2 - ethoxy - 2 - t. - butylperoxypropane, a  - methoxy - a  - t. - butylperoxy - ethylbenzene, a  - methoxy - a  - cumylperoxy - ethylbenzene, a  - isobutoxy - a  - t.-butylperoxy - ethylbenzene, di - (1,11 - diphenyl-1,11 - diisobutoxy) - ethylperoxide, 2 - t. - butylperoxy - 2 - isopropoxypropane, 1,4 - di - [di-(2,21 - diethoxy) isopropylperoxy) isopropyl] benzene and a ,a 1-dimethoxy-a ,a 1-di-t. -butylperoxy-p-diethylbenzene.ALSO:2 - t - Butylperoxy - 2 - t - butoxypropane may be prepared by reacting t-butyl isopropyl ether with t-butyl hydroperoxide in the presence of cobalt acetate as catalyst.
Patent GB-1399503-A (GB)
Title: Paper guillotine
IPC: B26D7/01
Filed: 1972-08-02
Abstract: 1399503 Cutting apparatus R MOHR 2 Aug 1972 [2 Aug 1971] 36092/72 Heading B4B [Also in Division G3] The feed slide of a paper guillotine has an adjustable rake forming the back fence so that the stack of paper can automatically be realigned between cutting cycles in accordance with a recorded programme (see Division G3). As shown, the rake 2 is attached to feed slide 1 through spring-loaded screws and is provided with longitudinally movable pins 10 which cooperate with screws 14 driven by electric motors 15. By operating the motors the spacing between the rake and slide can be altered thus giving angular or longitudinal adjustment of the paper stack. The slide may also be bodily tilted by a further motor, Fig. 4 (not shown).
Patent GB-767871-A (GB)
Title: Steam generating apparatus
IPC: F22B35/00
Filed: 1954-12-14
Abstract: 767,871. Pulverized fuel-fired furnaces. RILEY STOKER CORPORATION. Dec. 14, 1954 [Dec. 22, 1953], No. 36119/54. Class 51 (1). [Also in Group XIII] A steam generator is fired by two pulverized fuel-fired burners one, 30, being of a type which produces a long thin flame adjustable with respect to its angle of inclination to the horizontal, whilst the other, 31, is of a type which produces a short fat flame, the burners being so mounted that their flames intermingle. The burners 30, 31 (see Specifications 765,298 and U.S.A. Specification 2,158,521) are mounted in the front wall of the combustion chamber 25 and are fed with solid fuel from the pulverizer 34, preheated air being fed to the burners through conduits 39, 40 from a duct 38 which is connected to an air preheater 27 arranged in the gas passes of the generator. Vanes 42 in the burner 30 control the angle of the flame issuing therefrom, the vanes being actuated by an electric motor 43 the operation of which is effected from a controller 45 dependent upon the responses of a thermostat 47 located in a steam header 21.
Patent GB-824752-A (GB)
Title: Fuel control for a gas-turbine type power plant having an afterburner
IPC: F02C9/16
Filed: 1957-11-20
Abstract: 824,752. Gas-turbine jet-propulsion plant. UNITED AIRCRAFT CORPORATION. Nov. 20, 1957 [Nov. 21, 1956], No. 36122/57. Class 110(3). [Also in Group XXIX] In a gas-turbine provided with two sets of after-burner nozzles 26, 28, the fuel supply of the latter set is controlled by a valve 44 in accordance with fuel flow and compressor discharge pressure while the former set remains fully operative. As shown, the fuel flow through supply line 30 is controlled by a throttle valve 50 in conjunction with a pressureregulating valve 56 and pilot valve 60, the throttle valve being adjusted by a mechanism 100 under the joint control of servopistons 122, 152 positioned respectively in accordance with the setting of a hand power lever 22 and the compressor discharge pressure fed to a tapping point 130. Piston 122 is actuated by a cam 102, pilot valve 112 and floating follow-up lever 106, its movement being transmitted to the throttle valve spindle 170 through rollers 124, while piston 152 is controlled by bellows 132, 134 connected to a tilting lever 136 controlling a leak-off valve 142 regulating the pressure applied to the underside of the piston. A balancing spring 140 is interposed between lever 136 and piston 152, the latter of which acts upon the rollers 124 and spindle 170 through a linkage 160. Screws 70, 176, 172 associated with pilot valve 60, bellows 132 and linkage 160 permit adjustment of maximum and minimum fuel flows. Signals representative of the compressor discharge pressure and throttle setting (fuel flow) are fed through lines 190, 192 to links 198, 202 of a snap-action mechanism controlling a pilot valve 230 and a switch-over piston valve 234, and when a predetermined relationship between these variables is reached the switch-over mechanism operates so that piston 234 moves downwards to the position shown, in which pressure fluid is fed through pipe line 46 to open valve 44 and allow fuel to pass to the second set of after-burner nozzles 28.
Patent GB-1268969-A (GB)
Title: An apparatus for continuous casting
IPC: B22D11/14
Filed: 1969-07-17
Abstract: 1,268,969. Continuous casting. ERIK OLSSON A.G. 17 July, 1969 [19 July, 1968], No. 36124/69. Heading B3F. In a continuous casting apparatus comprising an inclined chill mould 5 and a roller guideway 6 for guiding the casting from the mould, the guideway axis 2 is at an angle a to the mould axis 1. The angle α is selected so that in operation the casting in the mould will be bent upward with a force 3 that at least partially counteracts its weight (a component of which is shown at 4). When curved moulds and/or guideways are used, the angle α is measured to the tangents to the axes at the exit of the mould and/or entry of the guideway. In Fig. 5 a mould 30 is supplied from a tundish 26 with melt. The tundish and mould are supported on a frame 18 that is pivoted to a foundation 14 by gussets 16 and their inclination is adjustable with respect to the guideway 36 by a screw-jack 20.
Patent GB-1514797-A (GB)
Title: Dosing device
IPC: G01F11/04
Filed: 1975-09-02
Abstract: 1514797 Dishwashing machines LICENTIA PATENT VERWALTUNGS GmbH 2 Sept 1975 [24 Sept 1974] 36163/75 Heading A4F [Also in Divisions B8 and D1] A liquid dosing apparatus for a dishwashing machine comprises a reservoir 2, a dosing chamber 3 with an adjustable piston 5 and a double valve 10, 11. The valve is controlled by a programmed control mechanism 13 with an electromagnet to open and close the valves 10, 11 simultaneously and oppositely. The position of the piston 5 is adjustable by rotation since it is threadably mounted. The reservoir 2 is filled by removal of a closure member 18 on a cap 17 to allow flow from the opening 1 to the reservoir along a channel 21. The opening 1 is also used as a discharge opening in normal operation. The apparatus may be mounted on the door 22 of the dishwashing machine.
Patent GB-636885-A (GB)
Title: Photographic emulsions
IPC: G03C1/22
Filed: 1946-12-06
Abstract: 636,885. Sensitized photographic emulsions. GENERAL ANILINE & FILM CORPORATION. Dec. 6, 1946, No. 36167. Convention date, Dec. 7, 1945. [Class 98 (ii)] Photographic silver halide emulsions are sensitized with cyanine dyes containing the nucleus wherein Z represents the non-metallic atoms to complete a heterocyclic nucleus, e.g. a thiazoline, selenazoline, hexahydrobenzthiazoline, 3-phenylpyrazolone, pyridine, quinoline, or thiazine nucleus. The nucleus may be derived from 2 - aminothiazoline, 2 - aminoselenazoline, 2 - aminodihydrothiazine, 2 - amino- 5 - methylthiazoline, 2 - amino - 4 - phenylthiazoline, 2 - aminohexahydrobenzthiazole, 3 - phenyl - 5 - aminopyrazolone, and 2 - aminopyridine, and may be condensed with (a) a cyclammonium quaternary salt having in the 2- or 4-position, an iodo, cyano, or aryl- or alkyl-mercapto substituent ; (b) a heterocyclic compound having in the 2- or 4-position an acetanilidomethylene substituent, or (c) a cyclammonium quaternary salt having in the 2- or 4-position a #-anilinovinyl, #-acetanilidovinyl, a group having a #-aldehyde substituent, acetylmethylene, #-alkylmercaptovinyl, or #- alkylmercapto-#-alkylvinyl substituent. Alternatively, a reactive derivative, e.g. an acetanilidomethylene derivative of the nucleus may be condensed with a cyclammonium quaternary salt having a methyl group in the 2- or 4-position. A condensing agent such as acetic, propionic, or butyric anhydride ; triethyl, tributyl, or triethanol amine ; N- methylpiperidine ; pyridine ; sodium or potassium acetate ; or sodium ethylate or propionate may be used. In examples : dyes are formed by refluxing together (1) thiazolopyrimidinedione, 2 - (# - acetanilidovinyl) - 6- methylbenzthiazole ethiodide, isopropyl alcohol, and triethylamine ; (2) thiazolopyrimidinedione, 2 - (# - acetanilidovinyl) - benzthiazoleethiodide, isopropyl alcohol, and triethylamine; (3) phenylthiazolopyrimidinedione, 2 - (#- methylmercapto - # - ethylvinyl) - 6 - methoxybenzselenazole ethiodide, n-propyl alcohol, and triethylamine ; (4) thiazinopyrimidinedione, 2 - (# - acetanilidovinyl) - 6 - methoxybenzselenazole ethiodide, n-propylalcohol, and triethylamine ; (5) hexahydrobenzthiazolopyrimidinedione, 2 - (# - acetanilidovinyl) - benzthiazole ethiodide, isopropyl alcohol, and triethylamine ; (6) methylthiazolopyrimidinedione, 2 - (# . acetanilidovinyl) - benzoxazole ethiodide, isopropyl alcohol, and triethylamine ; and (7) thiazinopyrimidinedione, 2-thio-3-ethyl- 5-acetanilidomethylene dihydrothiazolidone-4, pyridine, and triethylamine.
Patent GB-1272826-A (GB)
Title: Apparatus for indicating leakage of liquid from a container or conduit therefor
Inventor: NICOLAI WALTER
IPC: B65D90/503
Filed: 1969-07-17
Abstract: 1,272,826. Detecting leaks. W. NICOLAI July 17, 1969 [July 19, 1968; Feb. 13, 1969], No.36172/69. Heading G1S. Leakage from a container or a conduit is detected by maintaining in a reference chamber 3 a pressure which remains within an admissible pressure range in the absence of unacceptable leakage, the pressure being maintained by a pump 5 switched on and off at predetermined intervals by a cam switch 10. The reference chamber may be the space between the walls of a double walled vessel, Fig. 1, or conduit, or that above a liquid stored in a container, Fig. 4 (not shown). An unacceptable leakage is detected by a pressure sensitive switch 13 which operates an alarm 11, by measuring the output of the pump 5 or measuring the power input to the pump. The pressure in the reference chamber may be positive or negative. An auxiliary pump may be provided to aid attainment of the admissible pressure range on starting up. The main pump may be controlled by a time switch which switches the pump on after a preset delay for a given time, during which time the warning device circuit is inoperative, Fig. 4 (not shown). The pressure sensitive device 13 may also be arranged to switch off the main pump should the pump cause the pressure in the reference chamber to go beyond the admissible range, Fig. 4 (not shown).
Patent GB-1515927-A (GB)
Title: Devices for releasable connection of frame members
IPC: E04G7/30
Filed: 1976-11-09
Abstract: 1515927 Hooks ACCESS KEELEWAY Ltd 9 Nov 1976 [2 Sept 1975 10 Aug 1976] 36174/75 and 33222/76 Heading E2A Hollow frame member 1 is connected to second frame member 2 by hook 3. Spigot 4 engages in the end of member 1 and member 2 is retained in the hook by pivoted mousing piece 6 which is held in the closing position by a latch. In Fig. 1 the latch 11 is pivoted on the end of lever 6 and biased by spring 17 so that nose lla engages notch 12 in arm 13 of the hook. In Fig. 4 the latch 22 comprises a pin spring biased to engage in bore 23 of portion 20 of arm 13 which, in the locking position passes through hole 21 in the lever 6.
Patent GB-1473394-A (GB)
Title: Negative resistance semiconductor device
IPC: H01L21/337
Filed: 1974-08-16
Abstract: 1473394 Negative resistance circuits MATSUSHITA ELECTRONICS CORP 16 Aug 1974 [20 Aug 1973 30 Aug 1973] 36199/74 Heading H3T [Also in Division H1] At least one of the interconnections between a pair of complementary depletion mode FET's cross-coupled as shown in Fig. 1 is provided by the at least partial overlap of two highly doped semi-conductor regions. Fig. 3 shows two junction gate FET's; an N channel device comprising N<SP>+</SP> type source and drain regions 10, 11, an N type channel region 7 and a P type gate region 8; and a P channel device comprising P<SP>+</SP> type source and drain regions 13, 14, a P type channel region 9 and an N<SP>+</SP> type gate region 12. The source regions 11 and 14 overlap and are sufficiently highly doped to provide ohmic contact therebetween. Fig. 4 shows a similar combination, but in which the N channel device has an N type surface inversion channel region 21 either induced by the presence of a SiO 2  layer 20, or ion implanted. P type region 17, contacted via P<SP>+</SP> type surface region 22, forms a "back-gate" arrangement. Both these embodiments utilize N type epitaxial layers 7 on P type substrates 6. Fig. 5c also shows the combination of a surface inversion channel FET with a back gate 25/26 and a junction gate FET. In this case a common N<SP>+</SP> type region 28 serves both as the gate region of the J-FET (with drain and source regions 26, 27) and as the drain region of the surface inversion channel FET (with source and channel regions 29, 21). The regions 27, 29 may be interconnected by virtue of their high doping and a mutual overlap, as shown, or by means of a metallization layer.
Patent GB-815842-A (GB)
Title: Improvements in and relating to heat exchangers
Inventor: HARDY LEWIS EMPSALL
IPC: F28D7/00
Filed: 1956-11-27
Abstract: 815,842. Heat exchangers. SENIOR ECONOMISERS Ltd. Nov. 13, 1957 [Nov. 27, 1956], No. 36262/56. Class 64(3) A heat exchanger comprises a plurality of tubes 1 arranged side by side and spaced apart from each other by means permitting the tubes to be secured together in the desired spaced relation, open ended cross ducts 2 extending across the interior of the tubes 1, whereby a fluid passing over the tubes 1 flows also through the cross ducts 2. In the form shown the tubes 1 are of rectangular cross-section and have flanged end portions 3 whereby neighbouring tubes of a group may be bolted together at their ends (Fig. 2, not shown). Some or all of the tubes 1 may be externally finned or may have external grooves 7 to increase their surface area. The cross tubes 2 may also have internal and/or external fins.
Patent GB-1503047-A (GB)
Title: Electrophotographic copier/printer apparatus
IPC: B41J2/44
Filed: 1976-09-02
Abstract: 1503047 Electrophotography INTERNATIONAL BUSINESS MACHINES CORP 2 Sept 1976 [3 Nov 1975] 36283/76 Heading B6C In a dual mode electrophotographic copier/ printer of the kind in which a charged photoconductor is exposed either to a light image of an original or to a raster scanning light beam controlled by electrically generated data, the said beam is also utilized to erase the areas of the photoconductor bordering a selected latent image area in the copying mode and all areas other than the data defined latent image area in the printing mode.