baber/WOPTO huggingface dataset:
Patent GB-1247215-A (GB)
Title: Electronic thermostat
IPC: G05D23/20
Filed: 1969-01-14
Abstract: 1,247,215. Automatic temperature control systems. EBAUCHES S. A. Jan. 14, 1969 [Jan. 19, 1968], No. 2065/69. Heading G3R. A sensing device in an automatic control system comprises a thermo sensitive controllable rectifier having a negative resistance/temperature characteristic. The control electrode of a thyristor 1 is maintained at a slightly positive bias potential relative to the cathode by a circuit including Zener diodes 3 resistors R2, R3, R4 and a capacitor 5. The thyristor anode is fed from a positive potential through resistors R1, 2, the circuit being completed to a negative potential through a capacitor 6, which is normally maintained charged with the thyristor 1 non conductive. At a determined temperature the thyristor conducts thus discharging capacitor 6 when the thyristor reblocks thus forming a relaxation oscillator. The anode potential is applied to an amplifier 7 which controls a heater 8 which is periodically energized and de-energized until the thyristor reaches another temperature determined by adjustment of resistors 2, 4. In another arrangement Fig. 3 (not shown) the thyristor and heater are fed from an A. C. supply (9) the thyristor conducting on positive half cycles between temperature limits determined by a bias provided by a D. C. source (10) and potentiometer (11). In an alternative arrangement the capacitor 6 is omitted hence there is no oscillation and the thyristor conducts at one temperature and blocks at a higher temperature. It is stated that this arrangement operates with a 1C. differential.
Patent GB-580855-A (GB)
Title: Removal of stresses from thermoplastic resin articles
IPC: B29C71/02
Filed: 1944-02-04
Abstract: Removing internal stresses from articles of bubble free natural thermoplastic resins such as shellac by treating said articles in an inert liquid at an elevated temperature, said liquid having a density differing from that of the article by not more than 0.1 grams per c.c. at said elevated temperature and then cooling said article slowly and uniformly.  Plasticizers, modifying agents, dyes and/or fillers may be present in the article composition.  It is preferred that the articles should be heated to within 10 DEG C. of the softening point of the composition from which they are made. A stirring or oscillating system for the liquid and a clamping device for the article are usually employed.  The invention is particularly useful in the treatment of blanks and preforms which are subsequently fabricated into optical components. Specification 450,305, [Group IV], is referred to.ALSO:Internal stresses are removed from bubble-free articles composed essentially of thermoplastic resins (including partly-natural partly-synthetic thermoplastic resins such as cellulose acetate) by heating said articles in an inert liquid at an elevated temperature, said liquid having a density differing from that of the articles by not more than \sB 0.1 grams per c.c. at said elevated temperature and then cooling said articles slowly and uniformly.  Specified resins are polymethyl methacrylate, styrene, shellac and cellulose acetate.  A specified inert liquid is glycerol. It is preferred that the articles should be heated to within \sB 10 DEG  C. of the softening point of the composition from which they are made and that they should be cooled slowly and uniformly to room temperature while still in the said inert liquid.  To ensure even heating and cooling, a suitable stirring or circulating system for the liquid is necessary and the movement of the articles in the bath is restricted by some suitable device such as clamps.  The invention is particularly useful in the treatment of blanks and preforms of transparent thermoplastic resins which are subsequently fabricated into optical components. Plasticisers, modifying agents, dyes and/or fillers may be present in the article compositions.  In an example, a polymethylmethacrylate, bubble-free preform of a circular double convex lens having internal stresses was clamped in a stirred bath of glycerol at 100 DEG  C., and after one hour slowly cooled to 25 DEG C. The internal stresses were found to have been removed. Specification 450,305 is referred to.
Patent GB-289515-A (GB)
Title: Improvements in ferro-concrete building constructions
IPC: E04C5/065
Filed: 1927-01-25
Abstract: 289,515. Weber, W. Jan. 25, 1927. Ironwork, constructional.-- A skeleton forming a support for shuttering and a permanent reinforcement for concrete buildings consists of very light angle or other profile irons of small cross section and wire lattice or other bracing, the flange width of the irons being two centimetres or less. Fig. 2a shows a box column a supporting box girders b, c by pins e. The wire bracing d may be hooked on or welded to the bars, and may be in a continuous zigzag length. The profile irons shown in Figs. 5, 6, 7 and 11 have grooves g into which the bracing is inserted and secured by pressing the flanges together or by welding, the bar in Fig. 5 being composed of two grooved irons welded together. Triangular or other box girders, Fig. 11, or flat plane girders, may be built in this manner. Reference has been directed by the Comptroller to Specification 7210/14, [Class 20 (iv), Floors &c.].
Patent GB-1169801-A (GB)
Title: A Method and Apparatus for Installing Underground Pipes
IPC: E21B7/08
Filed: 1967-01-16
Abstract: 1,169,801. Boring earth &c. VAVRA HYDRAULTEKNIK A.B. 16 Jan., 1967 [20 Jan., 1966], No. 2179/67. Heading E1F. A pipe comprising sections is thrust through the earth, the leading section carrying a tubular member 14 having members 15 which are adjustable to guide the pipe. The members 15 are pivoted to the tubular member and are adjusted by means of nuts 22 on rods 17, covers 26 allowing access to the nuts.
Patent GB-104506-A (GB)
Title: Improvements in Electric Speed Indicators.
IPC: G01P3/46
Filed: 1917-02-14
Abstract: 104,506. Bosch, R., (Firm of). Feb. 26, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Electric speed indicators having alternating- current dynamos provided with rotating permanent magnets and stationary armatures connected to a volt-meter. The limit of indication with increase of speed consequent on the reaction of the armature field is overcome by the insertion of a condenser in the alternating-current circuit and the employment of an ammeter as the measuring- instrument, the armature winding of the dynamo, the ammeter, and condenser being connected in series. In order to obtain readings proportional to the speed, the range of the ammeter is limited to the steep portion of the curve showing the relation between current and speed prior to the point of resonance between the capacity and inductance of the circuit. The range of the instrument may be controlled by varying either or both the capacity of the condenser and the self-induction of the circuit.
Patent GB-1101624-A (GB)
Title: A process for the manufacture of acetylenic carbinols
IPC: C07C35/04
Filed: 1966-01-18
Abstract: Acetylenic carbinols of the Formula I <FORM:1101624/C2/1> where R represents a C1- 7 alkyl, C2- 7 alkenyl, C2- 7 alkynyl, phenyl or C1- 7 alkyl substituted phenyl group R1 represents a C1- 7 alkyl, C2- 7 alkenyl or C2- 7 alkynyl group, R2 represents a C1- 18 hydrocarbon group or R1 and R2 together with the carbon to which they are attached form a cycloalkyl or cycloalkenyl ring containing up to 7 carbon atoms, are prepared by reacting an acetylene compound of the formula HC­C-[H or R] with a ketone of the formula <FORM:1101624/C2/2> in the liquid phase at a temperature above about - 10 DEG  C. and a pressure greater than about 34 atmospheres in liquid ammonia in the presence of a catalytic amount of an alkali metal acetylide or an alkali metal derivative of the acetylenic carbinol of the Formula I, the acetylene compound, the ketone and the catalyst being dissolved in the liquid ammonia throughout the reaction. The liquid phase is defined as being devoid of any vapour phase or solids.  It is preferred to effect the reaction in a pipe reactor. It is preferred to operate at - 10 DEG  to 50 DEG  C. and 34-136 atms. The catalyst may be formed in situ by addition of an alkali metal or an alkali metal amide to the reaction mixture containing the acetylene compound starting material.  Examples relate to the preparation of 3-methyl-butyn-1-ol-3, dehydrolinalool, dehydronerolidol and dehydroisophytol.
Patent GB-1214013-A (GB)
Title: Improvements in or relating to furniture
IPC: F16B12/20
Filed: 1968-01-16
Abstract: 1,214,013. Clamps. C. HOLZAEPFEL JR. and A. HOLZAEPFEL. 16 Jan., 1968 [17 Jan., 1967], No. 2249/68. Heading B2A. [Also in Division A4] A device for bracing furniture walls 18, 23 abutting against each other at right angles comprises a housing 13 for mounting in one of the walls, a lever 15 pivotally mounted in the housing, and a wire loop 22 engageable both by the lever 15 and in a groove 12 of a bolt 10 anchored in the other wall 23, angular displacement of the lever 15 urging the wire loop 22 and bolt 10 towards the housing 13 to hold the walls in abutting relationship. The housing is moulded from a plastics material.
Patent GB-103860-A (GB)
Title: Method of and Apparatus for Minimising the Damage to a Ship when Water Enters any Compartment.
Inventor: LEE ALBERT JOHN FREDERICK
IPC: B63C7/12
Filed: 1916-02-15
Abstract: 103,860. Lee, A. J. F. Feb. 15, 1916. Leakage, detecting and stopping; hatches.-A slight excess of air pressure, capable of being increased, is always present in the lower compartments or holds of ships so that in event of damago resistance is offered to the entry of water. An air-compressor 1, Fig. 1, supplies the reservoir 2, connected by the pipe line 3 to pipes 4, leading to each compartment 8, which is fitted with valvecontrolled exit pipes 7 and an air lock 9. The presence of water in the return pipes indicates and locates a damaged compartment. Each air lock 9 is fitted with drop-down doors 11, 12, Fig. 3, operated by winches 14, 13, respectively from the top and bottom, and arranged so that only one door can be opened at the same time. The lock is also provided with valves 15, 16, Fig. 4, having screwed plugs 15<a>, 16<d>, on the spindle 17, which can be turned from above, below, or within, ports 15<c>, 16<c>, being cut for the free passage of air when the valves are unseated. If the air locks are not installed permanently, a section is cut out of the hatch cover 10 and fitted with a hinged door 31, Fig. 5, secured by studs 35. Specification 281/15 is referred to.
Patent GB-857483-A (GB)
Title: Improved drive means for a motor vehicle
IPC: F16H61/662
Filed: 1959-01-21
Abstract: 857,483. Change-speed control; expanding-wheel gear. DOORNE H. J. VAN. Jan. 21, 1959 [Jan. 24, 1958], No. 2306/59. Class 80 (2). In a V-belt expanding pulley gear a servomotor 17 controlling an axially movable pulley half 5 of at least one driving pulley is subjected to inlet manifold depression when a valve 37 is opened against a spring 38 by depression of the accelerator pedal 39 as shown, or by actuation of an equivalent hand lever or rotary grip engine-throttle control, and is vented through ports 35a when the accelerator is released. Inlet manifold depression is introduced through a gland 19, as shown, into the right-hand chamber of the servomotor 17 which is formed by a cylinder 17 fast on the movable pulley half 5 and a piston 16 fast on the driving shaft 1, the left-hand chamber being vented through a port 17a. The pulley half 5 is also moved by springs 15 and centrifugally actuated cams 12 pivoted at 10 on a member 7 fixed on the shaft 1. Rigid tubes 25, 23 carry the accelerator pedal 39 and respectively connect the valve 37 to the inlet manifold 29 and the servomotor 17 via flexible conduits 34 and 22, 20. In operation, when driving at a constant speed, the right-hand chamber is subjected to manifold depression and the pulley half 5 is urged leftwards for higher gear; on acceleration, the depression is reduced and, due to belt pull, the half 5 moves rightwards for lower gear; and on release of the accelerator pedal the right-hand chamber is vented and the half 5 moves rightwards for lower gear and increased engine braking. The arrangement may comprise a plurality of coaxial pulleys.
Patent GB-1222334-A (GB)
Title: Lubricating oil compositions and additives therefor
Inventor: CLOUGH THOMAS JAMES
IPC: C08F236/04
Filed: 1969-01-15
Abstract: 1,222,334. Oil-soluble copolymers. SINCLAIR OIL CORP. 15 Jan., 1969, No. 2318/69. Addition to 1,146,439. Heading C3P. [Also in Division C5] The oil-soluble copolymers of Specification 1,146,439 of (1) 3 to 55 mole per cent of RCOOR<SP>1</SP> where R is a C 3-25  ethylenically unsaturated hydrocarbon radical, R<SP>1</SP> is hydrogen or C 1-15  alkyl and the COOR<SP>1</SP> group is attached to an aliphatic carbon to carbon chain of at least 2 carbon atoms, (2) a C 4-12  conjugated diene, and (3) 92 to 15 mole per cent of a C 3-25  alpha monoalkene, particularly a C 12-21  normal α- monoalkene, the total number of carbon atoms in (1) and (3) being at least 12, are modified in that the proportion of (2) is 5 to 80 mole per cent. The copolymers may be prepared by copolymerizing the monomers at 0‹ to 50‹ C. in the presence of a catalyst comprising 2 to 7 weight per cent of aluminium trichloride in ethyl chloride to provide 2 to 30 weight per cent of aluminium trichloride based on the monomers. The products are useful as extreme pressure additives and may be reacted with polyamines R 2 N(R<SP>1</SP>NH) n H where R<SP>1</SP> is C 2-14  alkylene, R is hydrogen or C 1-30  alkyl and n 1 to 10 to provide 0À1 to 14 gram atoms of hydrogen-bonded nitrogen per mole equivalent of carboxyl groups in the copolymer to provide ashless detergents. Examples describe the copolymerization of C 14-21  α-olefins and butadiene with (1-6) methyl oleate, and (7) vinylacetic acid, and the reaction of the products with tetraethylene pentamine.
Patent GB-1485692-A (GB)
Title: Identification band for cows
IPC: A01K11/00
Filed: 1975-01-20
Abstract: 1485692 Identification band P P KIESTRA 20 Jan 1975 [24 Jan 1974] 2321/75 Heading B8F An identification band for positioning around a hind leg of a cow comprises a stainless steel band 1 having fastening devices 4, 5 at both ends whereby the band may be formed into a ring and having longitudinal edges 2, 3 bent over into engagement with one side of the band which is to form the interior of the ring. An endless band or ring of elliptical shape may be formed by hooking together bent seams 4, 5 of the band. The latter also includes an identification number 6 and a magnetic identification plate 7. The plate includes magnetic elements 8 for reading by a registration device of a milking machine and may be placed on the inside or outside of the band when it is formed into the ring. The number may be provided on the band by punching or hammering from the side of the band which is to form the inside surface of the ring. In an alternative embodiment, Fig. 7 (not shown), embossings (9) and ridges (10) are provided at the ends of the band and the bent over edge portions 2, 3 are cut away at one end to engage one band end within the edge portions of the other band end.
Patent GB-668135-A (GB)
Title: Manufacture of furs
IPC: C14B15/10
Filed: 1950-01-31
Abstract: 668,135. Dressed furs. MOSCOW FUR TRADING CO. (LONDON), Ltd. Jan. 31, 1950 [Jan. 31, 1949], No. 2529/50. Class 76. A fur skin of the class wherein the fur in the region of the rump and lower part of the grutzen (spine) is of coarser and heavier texture than the fur on the rest of the skin, is cut and lengthened by cutting away the said coarse portion, trimming the skin along the lateral edges of one hind paw to, and around, the head and back to the second hind paw, and joining the inner edges of said paws by stitching the same from the point on the grutzen of the excised portion to a point whereby the outer edges of the skins are brought into substantially parallel alignment with each other. As shown, a skin 10 has a coarse section 12 extending from the point 16 on the grutzen to the points 18 and 20 on the hind paws. This section is cut away and the edges of the skin trimmed to leave a rounded head 22. The paws 34 and 36 are stretched downwardly so that the lines 28 and 30 are brought together and are stitched to form a seam 38, thereby lengthening the skin. The skins may be stitched together lengthwise in rump-on-head formation (not shown) to form a fur comprising a parallel series of long graceful uniform textured pelts suitable for making up into fur garments. The head of the skin and the rump thereof may be pointed in shape, instead of arcuate, as shown, but they should be such as to fit each other lengthwise in rump-onhead formation.
Patent GB-318458-A (GB)
Title: Improvements in striking tools
IPC: H02K33/00
Filed: 1929-01-25
Abstract: 318,458. Weibull, E. H. W., and Hysing, E. G. Jan. 25. J929. Percussive tools.-In hammering tools utilizing an electromotor, an alternating current with a short-circuited motor is employed, for example a cylinder 15 which rotates inside the stator 7 and in which the striker is caused to reciprocate by the combined action of cam surfaces 8, 9 together with the centrifugal cam-action of balls 16 in tapered recesses 17. A modification is described wherein the balls 16 are replaced by a helical spring.
Patent GB-1271604-A (GB)
Title: Anti-clutter signal processing
IPC: G01S13/52
Filed: 1970-01-20
Abstract: 1,271,604. Pulse radar. CANADIAN PATENTS & DEVELOPMENTS Ltd. 20 Jan., 1970 [28 Jan., 1969], No. 2724/70. Heading H4D. An anti-clutter radar receiver includes a phase-preserving logarithmix I.F. amplifier 27, an M.T.I. ground-clutter cancellation unit 29 and a logarithmic video amplifier in conjunction with a fast-time-constant circuit 33. Rain clutter is reduced by the latter.
Patent GB-961803-A (GB)
Title: A process for sulphonating polypropylene and polyesters
IPC: D06M11/55
Filed: 1963-01-22
Abstract: 961,803. Treating polypropylene and polyester fibres. TOKAI SEIYU KOGYO CO. Ltd. Jan. 22, 1963 [May 10, 1962; June 12, 1962; June 25, 1962; July 7, 1962], No. 2768/63. Heading B5B. Polypropylene and polyester textile fibres, preferably in filamentary form, are treated with sulphur trioxide, in the presence of an organic liquid containing chlorine in chemically combined form, such as a chlorinated hydrocarbon. The organic liquid must be substantially a non- solvent for the polypropylene or polyester fibres and the sulphonation of the fibres is only superficial. The organic liquid may be carbon tetrachloride, trichloroethylene or tetrachloroethylene, both the liquid and the sulphur trioxide may be in the vapour phase. Preferably, sulphur trioxide is bubbled into the organic liquid and filamentary polypropylene or polyester is passed through the solution. The preferred proportion of sulphur trioxide based on the weight of material treated is 5 to 10% and the concentration of sulphur trioxide in the organic liquid is 0.2 to 1% by weight. In one example, polyester threads or textile fabric are soaked at room temperature for one minute in carbon tetrachloride containing 0.5% by weight of sulphur trioxide and then washed with methanol followed by water. In the other example, polypropylene fibres are soaked for one minute in carbon tetrachloride containing 1% by weight of sulphur trioxide. The liquid adhering to the fibres is then neutralized with a 1% aqueous sodium hydroxide solution, the wet fibres heated for 5 minutes at 50‹ C. and washed with water. The process of the invention improves the dyeability of the fibres. This can be increased and the fastness to light of the dyed fibre improved by converting the sulphonic acid groups of the sulphonated fibre into the corresponding salts of sodium, potassium, aluminium, nickel, barium, calcium, magnesium, molybdenum, zinc or antimony.
Patent GB-176970-A (GB)
Title: Improvements in and relating to locks and latches
IPC: E05B63/04
Filed: 1921-01-22
Abstract: 176,970. Bryan, S. P. Jan. 22, 1921. Reversible locks and latches. - In a lock reversible for right and left hand doors comprising a lock bolt d, rotatable latch bolt f, and removable end plate h having holes j, k, equidistant from its centre, the end plate h is provided with top and bottom locating flanges o in addition to the side flange m. If the ordinary end plate of the lock is dispensed with the screw r is replaced by screws through the flanges o.
Patent GB-328564-A (GB)
Title: Improvements in the treatment of platinum ores, concentrates or the like containing chromite
IPC: C22B11/00
Filed: 1929-01-28
Abstract: 328,564. Powell, A. R., Deering, E. C., and Johnson, Matthey & Co., Ltd. Jan. 28, 1929. Dry and matte processes of extracting platinum group metals.-Platinum group metals are recovered from ores &c. containing chromite by oxidizing the material to form chromates and ferric oxide, and smelting the product by a lead blast furnace method or with matte-forming materials as described in Specification 316,063. The chromite material may be roasted with lead oxide in a reverberatory furnace, preferably with addition of lime or other basic material: the roasted product is then briquetted with or sintered with silica and smelted in a blast furnace to obtain lead containing the platinum group metals and an iron-lime silicate containing the chromic oxide. In a modified method the chromite material is roasted with alkalies to form sodium and calcium chromates, which may be leached out, the residue being smelted with silica and matte-forming materials as described in Specification 316,063, to collect the platinum group metals in a matte.
Patent GB-1245163-A (GB)
Title: Multiterminal networks
IPC: H03H11/18
Filed: 1969-01-17
Abstract: 1,245,163. Valve phase shift circuits. C.I.T.- COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS. 17 Jan., 1969 [18 Jan., 1968], No. 2897/69. Heading H3W. A circuit for producing a constant phase shift over a band of frequencies comprises a differential amplifier 10 with a signal source 3 connected, via an RC circuit R 2 C 2  to an input 11 and a feedback path connected from the output 13 to another input 12 via a network R 1 C 1 . The capacitor C 1  may be shunted by a further resistor, Fig. 3 (not shown). If C 1 R 1 =C 2 R 2  the phase shift is 90 degrees over the amplifier operating range.
Patent GB-140551-A (GB)
Title: Foldable hood fittings of vehicles such as motor-cars
IPC: B60J7/12
Filed: 1919-02-06
Abstract: 140,551. Harrison, W. W. Feb. 6, 1919. Hoods.-Relates to means for preventing undue rearward projection of the rear hoop-stick on vehicles provided with dicky seats. The main forwardly-extending bar d is connected to the main upright a by an horizontal link f connected to the bar d at f<2> and to the upright a at f<3>, and by a vertical link c connected to the rear ex. tremity of the bar d at c<3> and to the upright at c<2>. The rear hoop-stick e is connected at e<2> to the link c, and when, in folding the hood, the link c swings downwardly, this hoop-stick is drawn forwardly so that it does not project at the rear beyond the upright a. In the folded position, the links c, f and the bar d all lie along the upright a with the links extending forwardly from their pivots c<2>, f<3> on the uprights. In the unfolded position, the link f rests upon the pivot c<3> of the link c. A middle hoop-stick g is pivoted at g<2> on the link f, and is connected by a link h to the bar d. This hoop-stick and link are also disposed between the upright a and the bar d in the folded position.
Patent GB-196408-A (GB)
Title: Improvements in and in the attachment of splash preventers for motor vehicles
IPC: B62D25/18
Filed: 1922-02-01
Abstract: 196,408. Broadhurst, W. O., and Filer, E. F. Feb. 1, 1922. Lateral-splash guards.-A splash guard for motor-vehicles comprises a brush e mounted on an arm d held adjustably in a socket c by a stud c<2> so that it may be raised for free access to the wheel; arms c' projecting from clips b on the steering socket &c. support the socket c. The fixing for the rear wheel comprises a clip around the brake drum casing.