baber/WOPTO huggingface dataset:
Patent GB-426631-A (GB)
Title: Improvements in or relating to devices for regulating the flow of refrigerant in refrigerating plant
IPC: F25B41/06
Filed: 1933-09-07
Abstract: 426,631. Refrigerating. CRACKNELL R. J., and U. D. ENGINEERING CO., Ltd., Abbey Works, Cumberland Avenue, Park Royal, London. Sept. 7, 1933, No. 24803. [Class 29] The flow of refrigerant from the condenser to the evaporator is controlled by a valve 25 operated by a bell-float 27 provided with a small leak-hole 29 and disposed in a chamber connected at 15 to the condenser. In the position shown, liquid refrigerant flows from the condenser into the chamber and thence over the weir 20 into the well 17 from which it passes to the evaporator. When the flow of liquid from the condenser ceases, vapour passes into the bell which increases in buoyancy and finally rises and closes the valve. Vapour continues to flow into the bell until the pressure therein equals that in the condenser after which liquefaction again takes place in the condenser. Meanwhile, vapour leaks from the bell into the upper part of the chamber and the bell gradually sinks and re-opens the valve.
Patent GB-1272618-A (GB)
Title: Improvements in or relating to light-sensitive polymers
Inventor: FIELD NATHAN DAVID
IPC: C08F8/00
Filed: 1969-05-15
Abstract: 1,272,618. Coated products. GAF CORP. 15 May, 1969 [22 May, 1968], No. 24847/69. Heading B2E. [Also in Divisions C3 and G2] A surface, glass is exemplified, is coated with a solution of a light-sensitive, organic solvent-soluble film forming polymer prepared by the reaction of (a) a copolymer of maleic anhydride with an alkylvinyl ether, ethylene, styrene or vinylpyrrolidone, or polymers of ethylenically unsaturated carboxy acids, or esters or acid halides thereof with (b) an allyl compound of the general formula wherein R is H, C 1-3  alkyl, aryl, C 1-3  alkyl substituted aryl, halogen, carboxy, or sulfonic acid; R 1  is H, aryl, alkyl, alkoxy, aryloxy, substituted aryl or aryloxy, benzyloxy, fluoro, chloro, bromo, nitro, carboxy, sulphonic acid, furanyl, cycloalkyl, aliphatic carboacyl, aliphatic carboacyloxy, aroyl, aroyloxy, cyano, alkylsulfonyl, arylsulfonyl, or carboalkoxy; R 2  is H, alkyl alkoxy, alkoxymethylene, aryl, aryloxy or alkyl substituted aryl or aryloxy; R 3  and R 4  are H, aryl, alkyl or alkoxy substituted aryl, chloro, bromo, nitro, amino, or alkyl sulfonyl. Such that when R and R 1  are H or alkyl, then at least one of R 2 , R 3  and R 4  is a substituent other than alkyl or H; and X is hydroxy, amino, monoalkylamino, monoalkenylamino, monoarylamine or mercapto, the resulting polymer consisting of 25-50 mole % of recurring structural units of the general formula  wherein W is H, alkyl, aryl, chlorine, bromine; X<SP>1</SP> is oxygen, sulfur, -N-R<SP>1</SP> wherein R<SP>1</SP> is H alkyl, alkenyl, or aryl, Y is  and Z is H, alkyl, alkoxy, aryloxy, -COOM or CO-X<SP>1</SP>-Y wherein M is H, a metal ion, ammonium ion, substituted ammonium ion, alkyl or aryl and the remaining structural units of the polymer being the polymerised moiety from (a) above. Copper and zinc are also mentioned as substrates. The polymers (a) exemplified are copolymers of maleic anhydride with methylvinyl ether, N-butyl-vinyl ether, isobutyl vinyl ether, octadecylvinyl ether isooctylvinyl ether, dodecylvinyl ether, cetylvinyl ether, styrene, ethylene and N-vinylpyrrolidone and polymers of methyl acrylate, acrylic chloride and methacrylic chloride.
Patent GB-1092155-A (GB)
Title: Material perforating apparatus
Inventor: WOODS JOSEPH
IPC: B26F1/04
Filed: 1965-06-12
Abstract: 1,092,155. Perforating apparatus. ROLLSROYCE Ltd. May 2, 1966 [June 12, 1965] No. 24917/65. Heading B4B. A perforating apparatus for sheets 42 comprises a ramp 41 curved at one end to form a trough to hold the sheet and at the other end forming a platen which supports the sheet while it is perforated by one or more of a plurality of punches 45. The sheet is attached by pegs 27 to a roller 28 by which it is drawn through the apparatus. At one end of the roller is a disc 29, Fig. 3, with a notched periphery which is rotated intermittently by a hand lever 30 and at the other end of the roller is a disc 38 which has graduations on the periphery to indicate the amount of advance of the sheet. Each of the punches is guided in a support bar 43 which extends across the width of the apparatus and above each punch is a lever 49 pivotally mounted on a cover 47. To form a row of perforations across a sheet the required punches are selected by rotating the appropriate levers 49 to the horizontal position and then all the punches are actuated simultaneously by depressing a bar (52), Fig. 1 (not shown), which extends across the apparatus and is supported at each end by a rod 53 which is in turn supported by a spring 54 attached to the casing of the apparatus. The punches are retracted by springs 46 and the levers 49 are returned to the vertical position by operating a hand lever 69 which rotates a cranked bar (67), Fig. 4 (not shown), which extends across the apparatus.
Patent GB-758662-A (GB)
Title: Method of preparing formazane dyestuffs
IPC: C09B50/00
Filed: 1953-09-09
Abstract: Hydrazones of formula R1-NH-N = C (Ar)-Y, where R1 is the radical of an aromatic amine, Ar is a substituted or unsubstituted aryl radical and Y is a group defined below, are obtained as intermediates in the preparation of meso-aryl formazene dyestuffs (see Group IV (c)).  The hydrazones are obtained by coupling one mol. of the diazonium salt of an aromatic amine which may be substituted, with a coupling component of formula <FORM:0758662/IV(a)/1> where Ar is as defined above and X and Y are electron-attracting groups (i.e. the groups -CN and -COZ wherein Z is -OH, -NH2, H or an alkyl, aryl, alkoxy or esterified carboxylic radical.  Y may become labile for further coupling only after saponifiaction of the hydrazone.  In examples (1) the sodium salt of alphaphenyl-aceticacetonitrile is coupled in alkaline solution with the diazo salt from aniline; (4), (5) and (7) ethyl alpha-phenyl acetoacetate or methyl m-tolyformyl acetate or diethyl phenyloxalacetate is coupled with the diazo salt from 4 - sulpho - 6 - nitro - 2 - aminophenol; (6) ethyl alpha-phenyl-formyl acetate is coupled with the diazo salt from picramic acid.
Patent GB-1328768-A (GB)
Title: Biocidal compositions
IPC: C07C259/02
Filed: 1972-05-26
Abstract: 1328768 Substituted acetophenones ROUSSEL UCLAF 26 May 1972 [26 May 1971] 25042/72 Heading C2C [Also in Division A5] Acetophenones having the general formula wherein R<SP>1</SP> represents H, Cl or -OH; R<SP>2</SP> represents -NO 2  or -OCH 3  and when R<SP>1</SP> represents Cl of -OH, R<SP>2</SP> may also represent Cl or an acetoxy group, are prepared by reacting a compound of formula with an alkyl nitrite. 2,5-w-Trichloroacetophenone, and the corresponding tetra- and pentachlorinated compounds are prepared by passing chlorine through 2,5-dichloroacetophenone.
Patent GB-654790-A (GB)
Title: Improvements in card setting machines
IPC: D01G15/92
Filed: 1948-09-24
Abstract: 654,790. Wire cards. SCHAUB, A. H. Sept. 24, 1948. No. 25051. Convention date, Sept. 25, 1947. [Class 120(iii)] A card setting machine of the type in which the card clothing or the setting mechanism performs an intermittent lateral staple spacing movement, a further lateral staple row displacement step, and a longitudinal feed movement corresponding to the distance between adjacent staple rows, is characterized by a feed member (as shown, a feed screw 8), in threaded connection with a holder for guiding the card clothing or with the setting mechanism and arranged to perform (a) an intermittent rotational movement in one direction and thereafter in the opposite direction for effecting the staple spacing steps, and (b) an axial movement laterally of the card clothing to effect a staple row displacement step. The arrangement shown in Fig. 4, produces card clothing having eight staples per row, the rows being staggered as shown in Fig. 1. The clothing is located relative to a staple-setting device by a laterally movable guide engaged by feed screw 8. Screw 8 is located in a bearing 12 in a ring 13 which screws into a fixed frame member 14 and carries an arm 16 which can be displaced about screw 8 to produce the axial movement of screw 8 necessary to effect the staple row displacement steps. Intermittent rotation of screw 8 in alternate directions necessary to effect the staple spacing steps is produced by means of a ratchet wheel 17 fixed to screw 8 and provided with two oppositely directed sets of seven teeth to produce seven staple spacing steps per row. Wheel 17 receives its intermittent rotation from two reciprocating pawls controlled by cams 28, 31 so that the pawls act alternately on the two sets of teeth on wheel 17 to rotate wheel 17 and screw 8 seven steps in one direction followed by seven steps in the opposite direction, with a pause at reversal. Cams 28, 31 are fixed to a 16-tooth ratchet 33 rotated on a shaft 36 by a further pawl reciprocated together with the other pawls. A cam 40 having three part-circular cam surfaces at progressively increasing radial distances, each extending for 120 degrees, is rotated by a 24-toothed ratchet wheel 41 actuated by a pawl reciprocating with the other pawls. A cam follower pivoted on a shaft 52, engages one or other of the three cam surfaces driving each set of seven staple spacing steps, and during the pause at reversal moves on to the succeeding cam surface, the consequent pivotal movement being transmitted through shaft 52 and a lever 51 to lever 16 to produce the appropriate row displacement step. Simultaneously with the row displacement step the card clothing is advanced longitudinally by the distance between adjacent rows by the action of a three nosed cam 42 fast with cam 40 and ratchet 41.
Patent GB-462598-A (GB)
Title: Improvements in or relating to slabs or units for use in building
IPC: E04B5/36
Filed: 1935-09-10
Abstract: 462,598. Floors ; roofs ; slabs. HURDEN, E. Sept. 10, 1935, No. 25197. [Classes 20 (iv) and 87 (i)] A hollow slab for floors, roofs, and the like consists of upper and lower sheets A, B of asbestos-cement or other suitable material except metal, which are bolted or similarly secured together, the upper sheet A being shaped so as to provide a series of flat tops with intervening parallel depressed channels a<1> which extend completely across the sheet and are open at the top, and the lower sheet B being substantially flat. The channels a<1> are adapted to be filled, either at the factory or on the site, with porous concrete G which is finished level with the flat tops of the upper sheet so as to provide a flat surface for the reception of an asphalt or other layer. The concrete G may be reinforced by lengths of twisted rods E which may be positioned on the site or associated with the slabs at the factory by wire ties F gripped by the heads of the bolts D, as shown in Fig. 1 ; in the latter case, the reinforcements of adjacent slabs are tied together on the site by a length of twisted rods E<1> crossing the joint between the slabs as shown in Fig. 2. In the arrangement shown in Fig. 3, the lower sheet B is provided, under the channels a<1> of the upper sheet, with a raised portion b in the form either of a continuous rib or a series of mounds. The sheets A, B are connected together by bolts D which have washers d<1>, d2 in contact with the sheets, and the reinforcement E is gripped between the washer d<1> and the nut d<3> on the bolt D. The underside of the raised portions b may be filled with concrete &c. g<1>. The channel portions a<1> of the upper sheet A may have portions a<2>. to interlock with the raised portions bl of the lower sheet. The cavities in the slabs may be filled with an insulating medium. Specification 247,327, [Class 20 (iv)], is referred to. The Provisional Specification also describes the connection of the sheets and reinforcement by rivets.
Patent GB-939266-A (GB)
Title: Measurement of constituent chemical potentials
IPC: G01N27/12
Filed: 1960-01-25
Abstract: In a method of measuring and controlling the atmosphere in a metal-treating furnace as in Specifications 675,457 and 646,078, a material bearing the constituent whose concentration (constituent potential) is to be measured is supplied to the furnace, and a sample of either the furnace atmosphere or the material is passed into a separate measuring vessel to establish therein an atmosphere where the constituent potential of the constituent and the temperature both have values fixed relative to those of the furnace, measurement being effected in the vessel by means of an element which absorbs the constituent and thereby changes its electrical characteristics.  The description is identical with that of Specification 939,265.
Patent GB-460052-A (GB)
Title: Improvements in or relating to insulated electric conductors having bared ends
IPC: H02G1/12
Filed: 1935-09-13
Abstract: 460,052. Perforating - machines. FERRANTI, Ltd., and EVISON, S. Sept. 13, 1935, No. 25414. [Class 31 (ii)] [Also in Groups XXXVI and XXII] In the formation of a terminal on an insulated lead a, the insulation is forced back from the end e of the stranded conductor, and a transverse hole formed in the forcedback part of the insulation. The operations may be performed by means of a jig b having a hole c to receive the insulated conductor, a shoulder f to force back the insulation, and a pin g to make the transverse hole.
Patent GB-660970-A (GB)
Title: Improvements in and relating to valves
IPC: F16K1/38
Filed: 1949-10-05
Abstract: 660,970. Removing deleterious matter from valves. SPENCE & SONS, Ltd., P., and RYCKE, D. DE. April 17, 1950 [Oct. 5, 1949] No. 25568/49. Class 135. In a valve for controlling the flow of liquids, the closure member 1 is provided with a flexible disc or ring 6 which precedes the member 1 during the closing movement and sweeps over the valve seat 2 to clean the latter whilst, at the same time, constituting a temporary closure to the valve port. A flexible annulus 4 combined with the valve seat scrapes the member 1 as the latter moves towards the closed position. The disc, &c. 6 is of metal or rubber. If the valve spindle has a skew thread engagement with the spindle guide, the valve will be rotated during the longitudinal opening and closing movements.
Patent GB-485727-A (GB)
Title: Improved method and apparatus for the production of pavement kerbs, road surfaces, floorings and the like, or other structures such as conduits and the like
IPC: E01C19/48
Filed: 1937-09-22
Abstract: 485,727. Casting kerbs &c. in situ ; vibrating-apparatus. PROCEDES TECHNIQUES DE CONSTRUCTION. Sept. 22, 1937, No. 25696. Convention date, Feb. 19. [Class 86] [Also in Group X] Travelling apparatus for moulding kerbs &c. in situ, of the kind described in Specification 282,039, [Class 107], comprises vibratory means for rendering the concrete &c. ingredients fluid and afterwards damping the vibrations whereby the material assumes a solid form as it issues from the apparatus. As shown in Fig. 2, the materials are fed to a hopper 2 in which is a vibrating tool 4. The material, rendered fluid by the vibration, is moulded by the upper surface 21 and is deposited as the hopper moves along the ground; an extension 8 is connected to the hopper by a flanged joint with rubber &c. packing whereby vibration from the hopper is damped. In a modification the extension is dispensed with, the vibrations being damped by coating the surface 2<1> with rubber or cork. As shown in Fig. 4, the extension may be provided with plates 21<1> which penetrate the ground. Rods or tubes forming reinforcements may be fed through the wall of the hopper and cast in the kerb, and hollow kerbs &c., may be formed by providing the hopper with a core or mandrel comprising an envelope carried by means of elastic rings on a rod passing therethrough and integral with the hopper.
Patent GB-1526357-A (GB)
Title: Hydrocarbon fuel and lubricating oil compositions
IPC: C10L1/222
Filed: 1977-06-20
Abstract: 1526357 N,N<SP>1</SP>-Di-(diaminoalkyl) urea or thiourea SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 20 June 1977 [21 June 1976] 25698/76 Heading C2C [Also in Division C5] In a hydrocarbon fuel or lubricating oil is used a minor amount of an octane requirement reduction agent of formula wherein each R represents the same or different C 1 -C 6  alkyl group, each R 1  represents the same of different C 2  to C 6  alkylene group and X is oxygen or sulphur. The compound may be formed by reacting with urea or thiourea.
Patent GB-241567-A (GB)
Title: Means for coupling high frequency telegraphic and telephonic apparatus to high voltage long distance lines
IPC: H04B3/56
Filed: 1925-10-14
Abstract: 241,567. Telefunken Ges. f³r Drahtlose Telegraphie. Oct. 15, 1924, [Convention date]. Wired wireless systems; diplex and duplex signalling.-In means for coupling high frequency telegraphic or telephonic apparatus to high voltage long distance lines, the coupling is effected through a closed circuit tuned to the frequency of the high frequency carrier wave and containing an inductance 2 in the line 1 connected on both sides through a high tension condenser 3 to a coil 4 inductively coupled with the transmitter or receiver 5. A high frequency earthing short circuit 7 is provided between the coupling circuit and the switch 6, which may be moved to one of three positions c, a, b so as to (1) connect the line with the bus-bars 8 of the power system, which may include a high tension transformer 9; (2) leave the end of the line free, or (3) connect the line to the direct earth line 10 respectively. With this arrangement the high frequency network is rendered substantially independent of changes in the line circuit. Fig. 2 illustrates a modified arrangement employed when high frequency waves of different frequencies are used for transmitting and receiving. In this modification the coupling circuit is divided into two parallel branches, the coils 4a, 4b being coupled with the transmitter 5<a> and receiver 5b respectively. Each branch contains a tuning element 12<a>, 12<b> and a, rejector circuit 11<a>, 11<b> tuned to reject the frequency to be dealt with by the other branch. The high frequency short circuit is similarly branched at 7a, 7b.
Patent GB-967480-A (GB)
Title: Valves for the control of fluids
IPC: F16K27/06
Filed: 1962-07-04
Abstract: 967,480. Valves. RHEINISCHE METALWERK G.m.b.H. July 4, 1962 [Aug. 26, 1961], No. 25714/62. Heading F2V. The cast body 1 of a simple-throughway rotary-cylindrical cock has the flow passages 3 and the transverse closure-member bore 2 for the valve plug 4 lined with bushes of synthetic material, e.g. P.V.C. or coated with enamel. At the junctions between the passages and bore the bushes or coatings are shaped to form dovetail section grooves that house flexible sealing rings 7, 7<SP>1</SP>. An operating shaft 10 with a pinion 101 meshes with a toothed ring 9 on the plug, which ring has teeth round at least 90 degrees of its periphery. A valve-position indicating- spindle 11 is also provided. When the plug has been partly rotated the controlled fluid flows past the sealing rings into body 1 to lubricate the working parts and since the plug 4 is a loose fit in the body the inlet fluid forces the plug against the sealing ring on the outlet side.
Patent GB-896777-A (GB)
Title: Improvements in or relating to lubricants
Filed: 1958-08-12
Abstract: An extreme pressure lubricating composition comprises a mineral lubricating oil together with:- (a) an oil-soluble product obtained by replacing a part only of the chlorine content of a chlorinated C2-24 aliphatic hydrocarbon by a thiocarbonate or alkylthiocarbonate group; (b) an oil-soluble zinc dithiophosphate <FORM:0896777/III/1> where R1 and R2 are like or unlike acyclic or alicyclic hydrocarbon groups; and (c) an oil-soluble phosphorized- and sulphurizeddi-cyclic terpene, the total of (a), (b) and (c) being not less than 4% wt. of the oil and the ratios (by weight) of (b) : (c) and (a) : (b) being between 1 and 9 : 1 and 0,9 and 3 : 1 respectively.  The mineral lubricating oil may have a viscosity of 1 to 10,000, preferably 10 to 1,500, cs/100 DEG F.  Compounds (a) are described in Specification 805,553; they may be obtained by reacting a chlorinated hydrocarbon such as ethane, petroleum naphtha, kerosine or petroleum wax with an alkali or alkaline earth metal salt of a mono-, di- or tri-thiocarbonic acid, e.g. sodium and potassium methyl, ethyl, propyl, butyl, amyl, hexyl, octyl, decyl, and dodecyl xanthates and the corresponding mono-and tri-thiocarbonates.  In compound (b) R1 and R2 may be butyl, amyl, isoamyl, hexyl, iso-octyl, 2-ethyl-hexyl, nonyl, decyl, dodecyl, tetradecyl, cyclohexyl, methyl cyclohexyl, ethyl-cyclohexyl or amylcyclohexyl. Compound (c) may be obtained by reacting a dicyclic terpene such as pinene, camphene, and fenchene with any phosphorus sulphide at 100 DEG  to 160 DEG C.; P2S5 being preferred.  The preparation of compounds (b) and (c) is exemplified (see Group IV(b)). Optional ingredients mentioned are alkali and alkali earth metal wax-alkylated benzene and petroleum sulphonates; antioxidants; dyes; thickness and V.I. improvers.  Examples comprise a chloronaphtha-iso-propyl xanthate reaction product, zinc di (1,3-dimethyl butyl) dithiophosphate and P2S5-treated pinene in a SAE 30 mineral oil.ALSO:Zinc dithiophosphates of the formula [(R1O)(R2O)P(S)S]2Zn wherein R1 and R2 are like or unlike acyclic or alicyclic hydrocarbon groups, e.g. butyl, amyl, isoamyl, hexyl, iso-octyl, 2-ethylhexyl, nonyl, decyl, dodecyl, tridecyl, tetradecyl, cyclohexyl, or methyl-, ethyl-, or amyl-cyclohexyl may be obtained by heating 4 moles of the appropriate alcohol or mixture of alcohols with one mole of P2S5 and then reacting with an excess of zinc oxide in the presence of water.  Examples are given in which the alcohols used are methyl isobutyl carbinol, primary amyl alcohol, isooctyl alcohol (a mixture of 3 : 5- and 3 : 4-dimethyl hexanol) and primary tridecyl alcohol (obtained by the oxo reaction on propylene tetramer) respectively.  The products are used as constituents of lubricating additives (see Group III). Specification 805,553 is referred to.
Patent GB-446801-A (GB)
Title: Improvements relating to glazed refrigerating cabinets for foodstuffs
IPC: G02B23/14
Filed: 1935-09-18
Abstract: 446,801. Refrigerators. FREYTAG, E., Frohnleiten, Styria, Austria. Sept. 18, 1935, No. 25921. Convention date, Sept. 19, 1934. [Class 29] A cabinet having double glass walls 9 on three sides is superposed on a box 1 fitted with a drawer 5 for ice &c., and is cooled also by an ice &c. container 15 in its upper part. Natural ventilation is provided by air inlets 20, 20<a> and outlets 21, 21<a>. The upper ice container preferably has apertures 16 in its walls and is supported on rubber feet 14 on one of the shelves. Ice water drains from the upper ice vessel through outlet pipes 19 removably fitting into a pipe 18 which extends through a hollow support 17 and may lead into the lower ice vessel or to waste.