baber/WOPTO huggingface dataset:
Patent GB-728583-A (GB)
Title: Polyglycol esters of homocyclic organic carboxylic acids and a process of making same
Filed: 1951-02-14
Abstract: The invention comprises polyglycol esters of amino acids of the formula <FORM:0728583/IV (a)/1> where the phenyl may be substituted by OH, R and R1 are hydrocarbon residues of up to 6 carbon atoms, or R may also be hydrogen, and n is 4-50, obtainable by esterifying the acid with a polyglycol or ether thereof.  In examples a polyethylene glycol ether of average mol. wt. 750 is used to esterify 4-butyl-amino benzoic acid, n in the product having the average value of 16. Other polyglycol ethers give similar products in which n may be 4-8, and 18.ALSO:The invention comprises polyglycol esters of aminoacids of the formula <FORM:0728583/IV (b)/1> where the phenyl may be substituted by OH,R and R1 are hydrocarbon residues of up to 6 carbon atoms, or R may also be hydrogen, and n is 4-50, obtainable by esterifying the acid with a polyglycol or ether thereof.  In examples a polyethylene glycol ether of average mol. wt. = 750 is used to esterify 4-butylaminobenzoic acid, n in the product having the average value of 16.  Other polyglycol ethers give similar products in which n may be 4-8, and 18.
Patent GB-635072-A (GB)
Title: Improvements in or relating to electric rate measuring systems
IPC: G01R1/30
Filed: 1947-02-07
Abstract: 635,072. Frequency, voltage, current measurements. STANDARD TELEPHONES & CABLES, Ltd., DUNN, R. H., and LENNOX, P. W. Feb. 7, 1947, No. 3706. [Class 37] In an electric rate-measuring system, contacts IP are impulsed at a rate to be measured, e.g. by a k.w.h. meter, to alternately charge condenser C1 from a negative potential source and discharge it into a larger condenser C2 with which is associated an amplifier valve V1 having C2 as a negative feedback path between the anode and grid and effective to linearise the relation between increasing increments of charge from C1, and the charge on C2, which leaks through R12, R13 between increments of charge from C1. The voltage across C2 is fed to the grid of valve V2 after smoothing in a time constant circuit comprising resistances R9-R13, condenser C3 and rectifiers H1, H2 normally biassed to present a high resistance, which alternatively assume a low resistance when the charge on C2 changes, so that the grid voltage of valve V2 may rapidly follow changes in the rate of impulsing. The anode current of V2 flows in the opposed windings Al, A2 of saturable transformers T1, T2 and a steady direct current in the opposed windings D1, D2 enables the saturation to be adjusted so that the current from an A.C. source through series windings B1, B2 and the primary of transformer T3 is linearly related to the direct current in windings A1, A2. The secondary of transformer T3 is connected to a bridge rectifier, and the resultant D.C. deflects a measuring instrument M to indicate the quantity to be measured and regeneratively energizes the transformer windings E1, E2 to increase the amplification of the device. The rectifier output operates a summator S, which may record the aggregate of the indications of a number of devices of the kind described. Negative feedback to the grid of valve V1 is provided through resistance R7. The rectifier connections may be inverted if required. The system is particularly applicable to watt/hour meters or mechanical stokers impulsing electrical contacts, but is operable to measure any variable voltage applied to the grid of V2. Specifications 629,244, 629,245, 629,246, [Group XIX], and 629,260, [Group XL (b)], are referred to.
Patent GB-860812-A (GB)
Title: Auxiliary bedstead support
IPC: A47B91/02
Filed: 1958-02-05
Abstract: 860,812. Shore for bedstead. HERMAN, A. April 20; 1959 [Feb. 5, 1958], No. 3713/38. Class 20(2) A prop for supporting the middle of the frame of a bedstead on each side comprises telescoping tubes 6, 8 relatively adjustable by means of a pin I in the tube 6 engaging notches 9, 13 in a slot 7 in the tube 8 and an inner plunger 2 having screwthreaded engagement with the inside of the tube 6 to provide 'a fine adjustment. One of three heads 1 for angle iron, as shown, tubular or wooden frames is mounted on a ball bearing 5.
Patent GB-1493045-A (GB)
Title: Heat exchanger
IPC: F28B1/06
Filed: 1975-01-28
Abstract: 1493045 Air cooled heat exchangers LUMMUS CO 28 Jan 1975 [28 Jan 1974] 3758/75 Heading F4S In an air cooled heat exchanger for condensing steam or other vapour including a main condensing section comprising U-tubes 13 having upstream legs 12a, 14a and downstream legs legs 12b, 14b and a secondary condensing section similarly comprising U-tubes 21 having upstream legs 20a, 22a and downstream legs 20b, 22b and serving to condense vapour not condensed in the main section, the downstream legs of the main section are connected to the upstream legs of the secondary section via condensate collecting manifolds 16 and 18, and the downstream legs of the secondary section terminate in collecting manifolds 24 and 26. Vapour to be condensed is supplied to the upstream legs 12a, 14a of the main condensing section through an inlet manifold 10 and condensate is drained from the manifolds 16, 18, 24, 26 by a collector 36 and drainpipe 38. Uncondensed vapour and uncondensible gases are removed from the heat exhanger through tubes 30 and 32 which are connected to the manifolds 24 and 26 and arranged perpendicular to the flow of vapour and condensate in the U-tubes. Alternatively the condensate and uncondensed gases can be removed via a common outlet 42 connected to the manifolds 24 and 26, as shown in Fig. 2. Vapour to be condensed can either be introduced into the upper, Fig. 1, or lower, Fig. 1, end of the inlet manifold 10. In use cooling air provided by a fan 40 is arranged to flow firstly over the upstream legs 12a, 14a and then over the downstream legs 12b, 14b of both the main and secondary condensing sections. Baffles 28 may be provided, to assist air distribution to the secondary condenser section. The U-tubes may be arranged horizontally but are preferably sloped to permit drainage of condensate by gravity.
Patent GB-493996-A (GB)
Title: A process for the preparation of derivatives of oestradiol
IPC: C07J75/00
Filed: 1938-02-07
Abstract: Oestradiol which is substituted in the 17-position by an acyl or carbalkoxyl group is prepared by introducing an acyl or a carbalkoxyl group into oestradiol which is already substituted at the 3-position by a benzyl or a substituted benzyl group, and thereafter removing the benzyl or substituted benzyl group by catalytic reduction.  The preferred acyl radicals are aliphatic acyl radicals such as acetyl, and also the acyl radicals of di- or poly-basic acids.  In the latter case acid esters are obtained the salts of which are soluble in water.  In examples: (1) oestradiol-3-benzyl ether is treated with acetic anhydride for five hours on the water bath, and the acetyl-benzyl derivative treated with hydrogen in the presence of a palladium catalyst to give 17-acetyl oestradiol; (2) a benzene solution of oestradiol-3-benzyl ether is reacted with chlorocarbonic ethyl ester in the presence of pyridine and the product reduced with hydrogen in the presence of palladium to give 17-carbalkoxy-oestradiol; (3) oestradiol-3-benzyl ether is treated with succinic anhydride in the presence of pyridine for 8 hours at 100 DEG  C.  The benzyl group was removed as in example (2) to give oestradiol-17-succinic acid ester.  Specification 428,215 is referred to.
Patent GB-1426038-A (GB)
Title: Pulper tank
IPC: B65D88/06
Filed: 1974-01-28
Abstract: 1426038 Pulper tank MORDEN MACHINES CO 28 Jan 1974 [20 June 1973] 03825/74 Heading B1C A pulper tank 10 has a generally horizontal bottom wall 14 of smaller area than the crosssectional area encompassed by annular side wall 13 and the sidewall and wall 14 are connected by two upwardly divergent "fillets" 15, 16 e.g. of frustooonical shape. The lowermost fillet 15 forms an exterior angle A of at least substantially 15 but not more than substantially 30 with the horizontal; angle B between the fillets 15, 16 is at least equal to angle A and angle C between fillet 16 and sidewall 13 is at least equal to angle B. Angles B and C are each less than substantially 40. The ratio of the height h 2  of the uppermost fillet to the height h 1  of the lowermost fillet is in the range of 2.5 to 1.5. Rotary agitating means such as a double rotor or as shown, single vane-type rotor 11 is mounted to operate above the bottom wall 14 and below the sidewall 13.
Patent GB-820883-A (GB)
Title: Improvements in or relating to composite pipes
Inventor: ALLEN NORMAN HENRY
IPC: B21C37/15
Filed: 1955-02-10
Abstract: 820,883. Making composite tubes; jointing. TALBOT-STEAD TUBE CO. Ltd. Feb. 2, 1956 [Feb. 10, 1955], No. 3973/55. Classes 83 (2) and 83 (4). [Also in Group XXVIII] In a method of manufacturing a composite pipe in which a fragile tubular lining 3, for example, of graphite, stoneware, ceramic or glass, is supported in a tubular metal casing 5, the lining is coated externally with an unset adhesive cement 4 and inserted into the casing which has an internal diameter greater than the external diameter of the coated liner, and the assembly is passed through a die 6 to contract the casing to leave a small clearance between the casing and lining. Finally the adhesive cement is caused or allowed to set. As shown, a steel tube is lined with graphite and the cement is a thermo-setting resin such as " Carbinert " H.E.4 (Registered Trade Mark). Specification 820,884, [Group XXVIII], is referred to.
Patent GB-621416-A (GB)
Title: Improvements in or relating to electric tumbler switches
IPC: H01H23/16
Filed: 1947-02-12
Abstract: 621,416. Tumbler switches. WALSALL CONDUITS, Ltd., and GOUGH, E. Feb. 12, 1947, No. 4029. [Class 38(v)] The spring-controlled member 21, e.g., the contact-carrier, of Specification 607.053, has open-ended slots 9 engaging the pivot pin 15 and disposed in a direction opposite to, or as shown, transverse to, the direction of any reaction between the member 21 and the pivot 15, so that the member is retained on the pin in all its angular positions, the member 21 being engaged with the pin by a sideways movement during assembly.
Patent GB-159140-A (GB)
Title: Improvements in and relating to wheels for vehicles
IPC: B60B15/18
Filed: 1921-02-03
Abstract: 159,140. Soc. Anon. Cingoli Brevetti Guerrini. Feb. 21, 1920, [Convention date]. Endless-track vehicles.-Relates to endless tracks of the kind consisting of a series of tread blocks mounted around the wheel periphery by a pin and slot connection so as to have freedom of movement relatively to the wheel, so that the block upon which the wheel bears at a given moment shall not be raised from the ground until the next block replaces it in its function. Specification 137,494 [Class 144 (i). Wheels for vehicles], is referred to. In one arrangement, Fig. 7, the blocks a have a pair of lugs a<1> lying on either side of the wheel rim and provided with triangular holes with rounded angles. Pins b<1> carried by the rim engage the holes to retain the blocks loosely in place. In a modification of this arrangement, a single central lug on each block is provided and enters a suitably shaped slot in the surface of the rim. In another arrangement, the triangular holes are fixed transversely in the rim b, Fig. 8, and the blocks a, Fig. 7, carry transverse pins a<2> between lugs a<1> engaging therewith. The blocks may be provided with pins a<3>, Fig. 10, standing up from the inner side and passing through radial holes in the rim.
Patent GB-299655-A (GB)
Title: Improvements in and relating to can structures
IPC: G10D7/08
Filed: 1928-02-10
Abstract: 299,655. Croad, A. K., (Tin Decorating Co.). Feb. 10, 1928. Lids; opening by tearing.-Relates to a can adapted to be opened by tearing out a rip-strip, the parts being arranged so that a hinged cover for the opened can is thereby provided. The can body has weakened lines 5, Figs. 1 and 4, defining the strip to be torn out by a key, to which part a tearing tongue 6 is attached. Within the upper part of the body is fitted a collar portion 10 held in place by crimping &c. to which a dished cover portion 13 fitting within the mouth of the can, and formed with a slightly flared lip 21, is hingedly attached. A dished cap 40 formed with a flange 43 is applied above the cover part and the flange rolled down to secure parts 40, 13 and the body together. Removal of the rip strip enables the cover portion to be opened about the hinge as shown in Fig. 7.
Patent GB-178607-A (GB)
Title: Improvements in and relating to burglar alarm
IPC: G08B13/08
Filed: 1921-02-07
Abstract: 178,607. Sefcik, F. Feb. 7, 1921. Burglar alarms. -An alar:n comprises a vertically slidable rcd carrving weights 28, 29, normally held in the position shown by the movable rod 31. Movement of the door 2 disengages the rod 31 from the weighted rod and alows the latter to fall on to the stem 14 of a valve shown in detail in Fig. 5, thereby allowing compressec air in the container 5 to flow to the sirens 20, 21, 24, which are of Efferent sizes. The container 5 is recharged from the room through the nozzle 8 and pipe 7.
Patent GB-1113084-A (GB)
Title: Variable resistance device
IPC: H01C10/32
Filed: 1967-01-30
Abstract: 1,113,084. Resistances. BECKMAN INSTRUMENT Inc. 30 Jan., 1967 [28 Feb., 1966]., No.4359/67. Heading HIS. To accurately position the resistance element 31 of a variable resistor during assembly in an open-ended housing 10 with respect to the movable contact 16b and the stops limiting its travel, a number of tabs (51, 52, 53, Fig. 9, not shown) are provided on the housing to cooperate with a number of grooves (54, 55, 56, Fig. 9, not shown) in the base assembly supporting the resistance element arranged so that the grooves and tabs may be engaged only when the base assembly and housing are in the precise relative position. The base assembly supporting the resistance element which may be of cermet or conductive plastics material and metal collector disc 33 comprises an insulating material wafer 32 in conjunction with an insulating material stand-off member 36 which carries the alignment grooves. Wafer 32 and stand-off member 36 are relatively aligned by means of slot 35 in the wafer surface into which shoulders (41, Fig. 4, not shown) on the stand-off member fit. After assembly the tabs (51, 52, 53) are bent over in the grooves (54, 55, 56) to retain the base assembly within the housing and the open space surrounding the terminals 34 is filled with an epoxy material 58 to seal the end of the device and help to support the terminals. The other end of the casing is sealed by resilient ring 28. Housing 10 may be formed of any suitable metallic material or plastics material, and the stops limiting the travel of the movable contact are formed by one or more depressions in the housing wall (Fig. 1, not shown) engaging a raised lug on the movable contact.
Patent GB-233082-A (GB)
Title: Mechanism for automatically locking carriage doors
IPC: E05B65/42
Filed: 1924-02-20
Abstract: 233,082. Maury, L. Feb. 20, 1924. Addition to 205,051. Railway-carriage doors and the like, fastening automatically.-In centrifugally-operated locking mechanism for carriage doors as described in the parent Specification in which the door bolts are operated through a system of links and rods by the rectilinear motion of a rod 'k operatively connected by a pivoted forked lever i to the spring-controlled slide d of governor mechanism g on a shaft b mounted in the box A and driven by means of the pulley B from the carriage wheel, the slide d is provided with a relatively movable face d<1>, Fig. 3, mounted on ball bearings d' and having recesses d<2> in which engage the ends of the forked portion of the lever i, which is rotatably mounted in the main portion of the lever. The shaft b carrying the pulley B, which in this case engages with a wooden pulley D on the carriage axle, is so mounted as to be capable of a slight swinging movement in a horizontal plane about its inner end against the action of springs x, Fig. 6.
Patent GB-1451064-A (GB)
Title: Gas making process
IPC: C07C1/00
Filed: 1973-01-30
Abstract: 1451064 Methane-containing gas BRITISH GAS CORP 25 Jan 1974 [30 Jan 1973] 4601/73 Heading C5E Methane-containing gases are produced by passing a gas comprising the vapour of a hydrocarbon feedstock e.g. naphtha, L.P.G., methane, hydrogen and steam into a bed of a steam reforming catalyst and recycling a portion of the gas produced from the catalyst bed back to the inlet of the catalyst bed to be admixed with the gas to be reacted prior to passage of the mixture through the catalyst bed, wherein the temperature of the gas, recyclce gas, or mixture is adjusted such that upon reaction the temperature of the catalyst bed is maintained at not greater than 400‹ C. The methane and hydrogen components of the gas other than the methane and hydrogen present in the recycle gas, are provided by reacting hydrocarbon feedstock vapour and steam over a subsidiary bed of steam reforming catalyst which may be maintained at 400‹ to 800‹C. The hydrocarbon feedstock may be the same to both beds in the ratio, subsidiary to main bed, of 2 : 3 to 2 : 1. A proportion of the main bed product gases and/or the subsidiary bed product gases may be recycled back to the inlet of the subsidiary bed to be admixed with hydrocarbon and steam prior to passing over the subsidiary catalyst. A hydrogen-containing gas, e.g. coke oven gas, may be added to at least one of the gas streams entering either catalyst bed. The hydrogen and methane contents of the gas other than that provided by the recycle gas, to the main bed may be provided by incorporating coke oven gas in the mixture. The catalyst for the beds may be a nickel-alumina coprecipitated catalyst.
Patent GB-249059-A (GB)
Title: Improvements in or relating to cooking stoves
IPC: F24C3/08
Filed: 1924-12-09
Abstract: 249,059. Pell, W. Guy-. Dec. 9,1924. Atmospheric gas burners.-In cooking-apparatus in which the food is roasted or grilled between vertical gas heating-elements 4 capable of being moved towards and from one another, each element comprises a bent tube 25 with an extension 26 sliding telescopically in a mixing- tube 27 common to both. Each tube 25 may be provided with a valve 28<a> for rendering the corresponding heating-element inoperative. Specifications 248,694; and 251,571, [Class 126, Stoves &c.], are referred to.
Patent GB-213388-A (GB)
Title: Improvements in or relating to the lettering of granite, stone, marble, and other memorials
IPC: G09F7/16
Filed: 1923-02-17
Abstract: 213,388. Whiteley, H. Feb. 17, 1923. Ornamenting. - Lettering and ornaments for stone memorials and the like are cut out solid from lead and then drilled with countersunk holes. Lead rivets D are hammered through the letters into corresponding holes drilled in the surface of the stone.
Patent GB-1493705-A (GB)
Title: Method of recovering butadiene gas from an acetoxylation process
IPC: C07C7/11
Filed: 1975-02-04
Abstract: 1493705 Acetoxylation MITSUBISHI CHEMICAL INDUSTRIES Ltd 4 Feb 1975 [5 Feb 1974] 4661/75 Heading C2C In an acetoxylation process, e.g. for the preparation of diacetoxybutene, comprising reacting butadiene, acetic acid and an oxygencontaining gas in the presence of a palladium catalyst, at least part of the gas from the acetoxylation and purification system which contains butadiene is passed to a butadiene absorber to absorb butadiene in acetic acid, which is then recycled, and then in a second stage the acetic acid containing gas is contacted with water to remove acetic acid. The diacetoxybutane thus prepared may be hydrolysed after optional hydrogenation to produce butene and/or butanediol. Examples describe closed systems for the acetoxylation of butadiene with a palladium-selenium catalyst supported on active carbon using a packed butadiene adsorber and an acetic acid adsorber (Fig. 1). A flow diagram of the process including the hydrogenation and hydrolysis stages, the recycling of the butadiene and the use of recovered acetic acid for the hydrolysis, is given.
Patent GB-139599-A (GB)
Title: Improvements relating to fire-places
IPC: F24B1/195
Filed: 1919-02-26
Abstract: 139,599. Hawkes, A., and Brooks, B. Feb. 26, 1919. Baffles.-A device for radiating heat from open fire-places consists of an open-fronted fire-clay hood or bonnet, Fig. 4, with two converging sides and an integral inclined top a. The back may be open, the device being fitted so as to rest against the back of the fireplace. Smoke passages b may be formed at the corners, as shown, and the top a may be perforated or provided with a removable piece, leaving a smoke passage when necessary. The device may be reinforced internally with strip steel or wire netting, or externally with steel bands. It may be divided horizontally or vertically into two separable parts. A modification has the form of a half-dome.
Patent GB-907117-A (GB)
Title: Dual frequency feed horn
IPC: H01Q5/45
Filed: 1961-02-09
Abstract: 907,117. Aerials. BENDIX CORPORATION. Feb. 9, 1961 [March 9, 1960], No. 4873/61. Class 40 (7). The invention relates to horn aerials capable of radiating energies of two different frequencies and orthogonal polarizations such as are used in co-operation with a reflecting surface to form shaped beams. The aerial comprises a flared rectangular horn 12 with a plurality of spaced parallel conductive plates 27 projecting inwardly from opposite walls. The horn is fed from a waveguide 11 which is provided with conductive plates 25 attached to opposite walls and parallel to those in the horn. Probes 17 and 22 feed the waveguide with energy at two different frequencies and with orthogonal propagating modes. The lower frequency energy is introduced by probe 17 and as its electrical vector lies in the direction of arrow 16 it is substantially unaffected by the plates and propagated with a pattern dependent on the horn wall design. Matching rods 21 match the waveguide to the horn at this frequency. The higher frequency energy introduced by probe 22 is prevented from passing back into the closed end of waveguide 11 containing probe 17 by bars 32 joining the rear ends of the wave-guide plates 25. The size of the guide is effectively reduced to the space not occupied by the plates for this energy and the plates are tapered at 26 to form a horn section for it. Plates 27 reduce the radiating aperture for high-frequency energy and in order to suppress undesirable modes a structure 29 is provided consisting of a conductor 29 centrally positioned by support members 31 which are connected together at an obtuse angle and conductively connected to the horn walls. In order to match the high-frequency structure it is preferred to make the central pair of plates 25 narrower than the others and to taper them to the horn-waveguide junction at a smaller angle.
Patent GB-142230-A (GB)
Title: Improvements in the coverings of conduits for laying electric cables
IPC: H02G9/06
Filed: 1919-02-27
Abstract: 142,230. Warne, C. G. Feb. 27, 1919. Conduits.-The covers D of electric - cable conduits are formed with one or more depending curved portions so shaped that, when in position, the under surface is at an even distance from the cable or cables. By this arrangement, it is stated, a minimum amount of bitumen &c. is used to cover the cables completely. Specifications 1983/83, 27224/05, 26810/06, and 21446/13 are referred to.