baber/WOPTO huggingface dataset:
Patent GB-357027-A (GB)
Title: Improvement in electrically operated refrigerating mechanism
IPC: F25D23/00
Filed: 1930-12-12
Abstract: 357,027. Refrigerating. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Williams Oil-O-Matic Heating Corporation; 1201, East Bell Street, Bloomington, Illinois, U.S.A.) Dec. 12, 1930, No. 37499. [Class 29.] Compression machines.-An air-cooled condenser coil 3 is arranged around and below a sealed casing 1 enclosing the compressor and its electric driving motor, the casing 1 being supported by a perforated casing 5 enclosing the condenser. A fan 7 driven by a separate motor 8 preferably connected in the circuit of the compressor motor so as to operate therewith draws air through the casing below a baffle 9 and discharges it above the baffle. The lower end of the condenser coil is connected with a refrigerant receiver in the form of an arcuate tube 6 within the base part of the casing.
Patent GB-1501778-A (GB)
Title: Conversion of vanadium oxytrichloride into ethyl vanadate
IPC: C07C29/70
Filed: 1976-09-09
Abstract: 1501778 Ethyl vanadate STAUFFER CHEMICAL CO 9 Sept 1976 [16 Oct 1975] 37503/76 Heading C2C Ethyl vanadate, (C 2 H 5 O) 3 VO, is prepared by forming a reaction mixture of vanadium oxytrichloride and ethanol in which the weight ratio of vanadium oxytrichloride to ethanol is from 1 : 1 to 1 : 6, including in or adding to the reaction mixture ammonia and an inert hydrocarbon solvent, and, after completion of the reaction, adding formamide or monomethyl formamide in a weight ratio of amide to vanadium oxytrichloride of at least 1À5 : 1, the solvent being immiscible with the amide and being a non-solvent for ammonium chloride. The ethyl vanadate/hydrocarbon layer may then be separated and the ethyl vanadate recovered therefrom. The solvent may be aliphatic or aromatic. Some of the hydrogen chloride formed in the reaction may be removed before adding ammonia by sweeping the mixture with an inert gas.
Patent GB-1099363-A (GB)
Title: Improvements in and relating to compression moulding of articles
Inventor: JAGGER ERNEST THORNTON
IPC: B29C43/00
Filed: 1963-09-24
Abstract: 1,099,363. Compression moulding. GEORGE ANGUS & CO. Ltd. Sept. 17, 1964 [Sept. 24, 1963], No. 37559/63. Heading B5A. In a compression moulding apparatus e.g. for moulding reinforced sealing members, in which there are a plurality of moulds which are successively moved through loading, compression and unloading stations, the compression is divided between two stations at the second of which the pressure is increased. A breathing station may be located between the two compression stations. As described the apparatus comprises a rotary table carrying ten moulds each comprising upper and lower die members 14 and 2. The dies are loaded successively at a loading station with an uncured rubber blank 1 and a metal insert. The table is indexed to a first compression station at which is located a low pressure pump 5 which supplies the piston chamber 12 with fluid at a pressure determined by a relief valve 15. At the next station a cam roller acts on a valve 11 to allow escape of some fluid for " breathing ". At the second compression moulding station further compression is effected by fluid from a high pressure pump 22 the supply pressure of which is determined by a relief valve 23. The table then indexes to an unloading station.
Patent GB-624654-A (GB)
Title: Improvements relating to safety saddle-bars or stirrup-strap suspenders
IPC: B68C1/18
Filed: 1946-12-22
Abstract: 624,654. Saddle bars. FROST & CO., Ltd., H., and HULSE, C. W. Dec. 22, 1946, No. 37639. [Class 62] A safety saddle bar comprises a body part built up from a back plate 1, inter mediate plate 2, anc front plate 3, each having open - endec slots 6 which arc coincident. A thumb bit 16 is pivoted be tween plates 1 and 3 and its tail 19 is held in either open or closed position by a spring 18. The slot in plate 2 is slightly broader than those in the other plates so that the edges of the latter can be turned inwards. The plates are secured together by copper fusing, brazing or welding.
Patent GB-362171-A (GB)
Title: Improvements in or relating to electric current regulators
IPC: H03F1/54
Filed: 1930-12-13
Abstract: 362,171. Valve amplifying circuits. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A. -(Assignees of Harness, L. R. ; 817, Rebecca Avenue, and Bokovoy, S. A. ; 309, Penwood Avenue, Wilkinsburg Station, both in Pittsburg, U.S.A.) Dec. 13, 1930, No. 37658. Convention date, Dec. 20, 1929. [Class 40 (v).] Sensitive constant current regulation notwithstanding large variations in source voltage is effected by varying the impedance of a main space discharge device 1 in accordance with changes in the load current by means of an auxiliary space discharge device connected to the control grid of the main device, so that the impedance changes of the main device are great in proportion to the changes in the load current. The main discharge device may be in series or in parallel with the load and two or more main devices may be arranged in parallel. As shown in Fig. 1, a source 6 supplies a load 7 such as a view or facsimile transmitting apparatus through the main discharge device and an impedance (resistance or inductance) 8. An auxiliary discharge tube 20 and an impedance 10 are connected to the grid of the main device 1 and to different points on the impedance 8. The grid of the tube 20 is connected to a point on the impedance 8 so that current variations in the load circuit vary the grid bias, an amplified bias being applied to the grid of the device 1. As shown in Fig. 3, a load comprising the cathodes of an amplifier set 37 is supplied from a source 35 through the main discharge devices 30, 31 and the cathodes of auxiliary tubes 38, 40, 41 so that the space currents of these last are varied by the changes in the load current and the impedance of the main devices 30, 31 is correspondingly varied. As shown in Fig. 2, the load 76 is in parallel with the main device 60 and the auxiliary device 69 is a screengrid valve or a triode. Fig. 4 (not shown) illustrates a modification, less critical in adjustment, using a pentode or a triode with a circuit in which the impedance which determines the potential applied to the anode of the control tube is disassociated from grid circuit of the main discharge device.
Patent GB-1415767-A (GB)
Title: Hydraulic transmissions for driving machines provided with holding brakes
IPC: F16H39/02
Filed: 1973-08-09
Abstract: 1415767 Hydraulic control circuits ORENSTEIN & KOPPEL AG 9 Aug 1973 [19 Aug 1972] 37887/73 Heading F1P In the circuit shown, in which a winch 6 is driven by a motor 3 and a pump 1 and held by a brake 7 when the pump is switched off, an accumulator 10 provides a high pressure supply on restarting the winch to prevent it running back under load when the brake is disengaged. Moving a control lever to start the motor 1 operates a valve 14 so that control fluid opens a valve 9 to connect the accumulator 10 to the motor 3 and passes through an adjustable throttle 12 to release the brake 7.
Patent GB-912532-A (GB)
Title: Improvements in the treatment of dense soda ash
Inventor: CALDWELL NED ALDEN
IPC: C01D7/24
Filed: 1960-11-04
Abstract: In a process producing dense soda ash, where trona is dissolved in a circulating aqueous solution of Na2CO3 and NaHCO3 containing a greater concentration of carbonate than bicarbonate insoluble and organic substances are removed from the loaded solution, sodium sesquicarbonate is crystallized by cooling and filtering, and the sesquicarbonate is heated to form light ash, a portion of the filtered circulating solution is withdrawn at any point in the cycle, and reacted with the light ash to form Na2CO3.H2O, which is heated to form dense ash.  The withdrawn solution, containing 17,5-38 parts Na2CO3 and 1-16 parts NaHCO3/100 parts water (temperature 15 DEG -105 DEG C.) is contacted with light ash (temperature 140 DEG -265 DEG C.) to form a 1:1 molar mixture.  Heating the Na2CO3.H2O to 140 DEG -210 DEG C. gives dense ash.  The withdrawn liquor may be diluted with water before contacting with light ash.
Patent GB-343641-A (GB)
Title: Improved means for winding textile material in conical drum cone winders
IPC: B65H54/10
Filed: 1929-12-11
Abstract: 343,641. Bobbin cradles for drum winding machines. BROADBENT & SON, Ltd., R. and THOMPSON, E. A., Phoenix Iron Works, Stalybridge, Cheshire. Dec. 11, 1929, No. 37953. [Class 120 (ii).] In a conical - drum cone winding - machine the bobbin cradles are pivoted about an axis parallel with that of the winding drum to allow for the growth of the cop, and are also positively tilted about an axis perpendicular thereto to increase the taper of the cop during winding. The cradle b, Figs. 1 and 2, with bearings for the cop carrier c has a support d pivoted on a shaft e which is pinned to a bracket f bolted to the back bar &c. The back of the cradle b, which is machined, is held against a machined face of the support d by a bolt on which it pivots. An adjustable collar i on the shaft e carries a pin i<2> engaging a slot g<3> in one arm of a lever g pivoted at g<1> on the support d, the other arm of the lever having a projection g<2> in a link h whereby the cradle b is positively tilted as it rises due to the growth of the cop. In a modification an adjustable pin on an arm fixed to the support d actuates a lever pivoted on an arm fixed to the shaft e, the lever carrying an adjustable projection engaging one arm of the cradle b.
Patent GB-1137287-A (GB)
Title: Improvements in or relating to wire or rod tee-connections and bird-guards for crops
IPC: A01G13/10
Filed: 1966-08-24
Abstract: 1,137,287. Tee connector. F. J. CONSTABLE and N. K. WALSH. 17 July, 1967 [24 Aug., 1966], No. 37956/66. Heading E2F [Also in divisions A1 and F2] A Tee connector comprises a socket stem 10, Fig. 4 rigidly securing a wire 3 and a crosspiece having two cylindrical portions 11, 12 rotatably supporting a second wire 2, the socket and cylindrical portion being connected by a flat portion against the flat side and edge 15 of which a loop 14 abuts to limit the rotation of wire 2 in each direction. In an application to a crop guard Fig. 1 (not shown) end arches (2, 4) are joined to a central wire (3) by Tee-connectors (6) so that the end arches can be folded flat to facilitate packing. The end arches have, loops (7) which limit the depth the legs can penetrate in the ground and also prevent the netting (5) riding over the frame. The netting is a sleeve e.g. of polypropylene, extruded polythene mesh, polythene sheet, nylon or transparent or translucent sheet. The open ends of the arch may be closed by similarly-shaped arches each covered by a netting bag.
Patent GB-1001504-A (GB)
Title: Process for the manufacture of purified calcium oxide
IPC: C01F11/16
Filed: 1962-10-08
Abstract: Pure crystalline CaO is prepared by melting commercial burnt lime of particle size not above 40 mm. in an arc furnace, and gradually cooling the melt by increasing the potential difference between the electrodes from 1.25 to 3 volts/cm. over 4-5 hrs., thus decreasing the resistance heating of the melt, while slowly raising the electrodes, thus increasing the arc heating above the melt, so that the melt crystallizes inwardly from the sides and base of the furnace; then crushing and mechanically separating the CaO from the remainder of the solidified melt containing the impurities.  The product consists of crystals 2-5 cm. in length, which may contain over 99.9% CaO, at least 60% of the charge being recovered as CaO.ALSO:A melt of burnt lime is crystallized inwardly from the sides and base of an arc furnace, by increasing the potential difference between the electrodes from 1,25 to 3 volts/cm. over 4-5 hours, thus decreasing the resistance heating of the melt, while gradually raising the electrodes, thus increasing the arc heating above the melt, so that impurities are retained in the liquid phase, which solidifies last and is separated mechanically after crushing from the pure CaO.  The product consists of crystals 2-5 cms. in length.
Patent GB-904432-A (GB)
Title: Improvements relating to cleaning devices, for example, for windows
Inventor: SADLER LESLIE REGINALD
IPC: A47L1/06
Filed: 1959-11-11
Abstract: 904,432. Cleaning devices; handles. BETTERWEAR PRODUCTS Ltd. Oct. 3, 1960 [Nov. 11, 1959], No. 38211/59. Classes 19 and 61. A cleaning device comprises a cleaning head 1, an adaptor 3 for attachment to a handle 6, and a universal ball-joint connection between the cleaning head and the adaptor. The universal ball-joint connection comprises an internally screw-threaded socket 10, a ball 9 carried by an arm 8, a tubular externally screw-threaded plug 12 adapted to screw into the socket 10 and through which the ball may be passed, and a cup-like member or cap 16 having flexible walls and which is capable of being fitted over the ball after the latter has been passed through the bore of the plug. In order to prevent the withdrawal of the ball from the plug the plug 12 is screwed into the socket 10 which compresses the cap 16 around the ball. A cap may be placed over the cleaning head which is preferably triangular and secured either by means of bands around the projections at the corners of the back 2 or clipped on. The cleaning layer may comprise a number of different coloured sponge-like layers.
Patent GB-881356-A (GB)
Title: Improvements in or relating to methods of securing by electrical arc welding an end of a stud bolt or the like to a metal work piece
IPC: B23K9/20
Filed: 1959-11-11
Abstract: 881,356. Welding by pressure. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 11, 1959 [Nov. 14, 1958], No. 38243/59. Class 83 (4). In stud-welding the period during which a stud is held spaced from the workpiece is accurately determined by a timing device rendered operative by the change in the welding circuit conditions occurring when the arc is struck. Initially the stud 18 is held spaced from the workpiece 17 by an annular slagforming body 19. Upon actuation of a switch 3 a relay 24 connects current through a welding transformer 23 to the stud 18 and through an auxiliary transformer 28 and a rectifier 26 to an electromagnet 5 which actuates a collet 10 to clamp the tube 13 carrying the stud 18 to the frame of the welding gun. When the arc strikes the change of current causes a current transformer 30 to energize a timing device 29 which after a predetermined delay opens contacts 36. The electromagnet 5 is de-energized and a spring 22 thrusts the stud 18 against the workpiece 17. In a modification, the timing device is responsive to the change in voltage which occurs when the arc is struck.
Patent GB-327197-A (GB)
Title: Improvements appertaining to the cutting mechanism of looms for weaving double pile fabrics
IPC: D03D39/16
Filed: 1928-12-28
Abstract: 327,197. Hudson, C. Dec. 28, 1928. Pile-fabric looms.-The knives for cutting apart double pile fabrics are reciprocated by means of mechanism controlled by changeable pattern mechanism 21, 21a, so that the pile threads extending between the two fabrics can be cut after every pick, or after every two or more picks. The pinion 2, which actuates known mechanism for reciprocating the knives, is actuated by a rack 5 driven by a crank pin 4 on a wheel 3 driven intermittently by a partly toothed drum 8 having teeth 8<a>. This drum is feathered on a sleeve fast to a, shaft 7 driven from a shaft 7<c> and is moved into and out of engagement with the wheel 3 bv a. fork lever 11 and lever mechanism 12, 14, 15 actuated by pattern chains provided with bowls or tappets 21, 21a, which act on both sides of the lever 15, pivoted at 16, so that this lever is positively actuated. The tappet chains are driven by pin-wheel and bevel gearing &c. The drum 8 has plain portions for engaging locking parts 3<a>, 3<b> on the wheel 3.
Patent GB-844735-A (GB)
Title: Improvements in or relating to time division communication systems
IPC: H04J3/20
Filed: 1958-11-27
Abstract: 844,735. Automatic exchange systems. WESTERN ELECTRIC CO. Inc. Nov. 27, 1958 [Dec.11, 1957], No. 38259/58. Class 40 (4). A time-division multiplex system includes a plurality of lines, such as A, B, C, a common communication link connected to the lines and comprising two channels 12 for transmission in opposite directions, each of the channels 12 comprising a send gate 31, a receive gate 32, and an intermediate signal storage means 34, and means for enabling in unison the send gates 31 in both channels 12 to transfer information from selected ones of the lines to the signal storage means 34 and for enabling in unison the receive gates 32 in both channels 12 upon disabling the send gates 31 to transfer information from the signal storage means 34 to the selected lines. Each line includes a transformer 36, a low-pass filter 23, and a gate 21, the gates 21 of the selected lines being enabled simultaneously with enablement of the send gates 31 and disabled simultaneously with disablement of the receive gates 32. Thus the " time slot " allocated to any particular connection is divided into two parts, the first for sending and the second for receiving. Between successive time slots, gates 33 discharge any signals remaining on the signal storage capacitors 34. Communication between two lines A and C connected to the same end of the common communication link is effected by allocating one time slot to a connection between line A and a trunk D and a second time slot to a connection between line C and trunk D, the trunk D being provided with a storage capacitor 90. Each gate comprises a pair of transistors and a square-loop magnetic core. Specifications 729,172 and 757,839 are referred to.
Patent GB-852467-A (GB)
Title: Weaving process using multiple sheds and mechanical means for applying said process
IPC: D03C5/02
Filed: 1956-12-14
Abstract: 852,467. Loom shedding mechanisms. METAPIC S. A. HOLDING LUXEMBOURGEOISE. Dec. 14, 1956 [Dec. 17, 1955], No. 38268/56. Class 142(2). The angle of the shed given to some of the warp threads can be adjusted while the loom is operating by moving some of the shedding levers relative to their shedding cams. A shedding lever 1 is depressed by a cam 4 and pivots about a point 2, the heald frame being connected to the end 3 of the shedding lever. The pivot 2 is moved by screw adjustment to a position 21 whereby the lift of the corresponding heald frame is altered from a distance H to a distance h. The lift of individual frames may be varied or the healds may be divided into groups and the lift of a whole group may be varied.
Patent GB-1001479-A (GB)
Title: Glycerol ethers
Inventor: CASADIO SILVANO
IPC: C07C49/84
Filed: 1962-10-10
Abstract: The invention comprises compounds of general formula <FORM:1001479/C2/1> wherein R1, R2, R3 and R4 represent hydrogen, halogen, hydroxy, alkyl, alkoxy or acyl, at least one being acyl, and R3 not being acyl when R1 and R4 are hydrogen and R2 is hydroxy; and their preparation by reaction of an appropriate phenol or its salt with glycerol or a reactive derivative thereof.  Pharmaceutical compositions comprise compounds of the invention with carriers or excipients.  Preparations (syrups, drops, elixirs, solutions, powders, granules, tablets, dragees, cachets, pills, capsules, suppositories) are mentioned for oral, parenteral and rectal administration. The compounds are tranquillizers and muscle relaxants.
Patent GB-1454625-A (GB)
Title: Four-quadrant photoelectric receiver
IPC: G01S3/783
Filed: 1974-09-03
Abstract: 1454625 Direction finder ELTRO GmbH GES FUR STRAHLUNGSTECHNIK 3 Sept 1974 [30 Oct 1973] 38518/74 Heading H4D In a photoelectric direction finder, of the kind comprising a lens producing a circular out of focus image 19, Fig. 4, of a point source object on a quadrant type photodetector 8, 9, 10, 11 the X, Y position output signals of the direction finder, based directly of the outputs of the four detecting elements 8, 9, 10 11, vary non-linearly with the position of the image. To achieve the linearity and/or produce a signal useful in determining the distance of the object, a fifth detector element 12 may be formed on the quadrant detector taking out a section of each of the quadrant detector elements 8, 9, 10, 11. The fifth element may have the straight line section star shape as shown, or may be a star formed from four hyperboli, Fig. 5 (not shown). Alternatively, a star shaped diaphragm may be interposed between the lens and the detector to cast an inhibiting shadow on said detector.
Patent GB-819974-A (GB)
Title: Improvements relating to looms
IPC: D03D41/00
Filed: 1956-12-21
Abstract: 819,974. Weaving looms. DEVELOPPEMENT TEXTILE S.A., DETESA. Dec. 21, 1956 [Dec. 21, 1955], No. 39064/56. Class 142(2) A rotating drum 3 over which  the warp threads 63 pass and on which the thread is formed, comprises co-axial polygonal  plates circular alternating therewith, circular-separator plates  66, to define between them cir-  cumferential warp - guiding  grooves; the plates are provided  with aligned notches, to define  a series of longitudinal weft receiving grooves 62; the notchesFIG. 17. in the plates 66 have recesses 70  which act as a reed and beat  up the weft; and coacting  blades 74, 75 align the warp  threads with their grooves  whilst blades 68 extract the  woven cloth from the grooves.  The weft is introduced by  needles 1 reciprocated by chains  4, 5 traversing in opposite senses and bearing pins 6 which engage in slots in vanes 8 borne, at one end of the needles. The chains are driven by sprockets 10, 11 on a shaft 9 geared to the axle of the drum 3 and having a universal joint between the sprocket in order that the planes in which the chains run may be suitably orientated. Each needle runs in a longitudinally slit tube 22 closed at the rear end by a block which is automatically displaced on insertion of the needle. Each weft passes from its spool 30 to the needle via a brake 31 which is released at the appropriate time by a cam 33. A take-up arm 34 and associated electrical contact 35 cause stoppage of the machine if the thread breaks. Electrical contacts 42-45 cause stoppage of the machine if a needle fails to follow its proper path, or if the weft fails. At the end of the forward stroke of a needle, its thread is held first by a brush and then by a strap 36, whilst the needle retires, is beaten up as the drum continues to rotate and is then trapped in its needle and cut by a knife 39. The last two threads at each edge are fed through holes 49 in devices 46, 47 which oscillate to produce leno crossings. Projecting weft ends are cut by coacting rotating and stationary blade 56, 57 and sucked away through a tube. Specification 705,064 is referred to.
Patent GB-867037-A (GB)
Title: Magnetically actuated mercury switch
Inventor: HOUSER ROY WALTER
IPC: H01H29/18
Filed: 1957-12-16
Abstract: 867,037. Mercury switches; thermal switches; magnetic switches. ROBERTSHAW-FULTON CONTROLS CO. Dec. 16, 1957 [April 26, 1957], No. 39079/57. Class 38 (5). A magnetically-operated mercury switch comprises a hermeticallysealed housing 12, 14 containing an iron ring 32 floating on mercury 30 and additionally supported by a spring washer 36. A permanent magnet 42 is mounted on a lever of any condition responsive device, for example a bimetallic strip 40. When magnet 42 approaches the bottom of the housing the ring 32 is attracted with a snap-action and forces mercury 30 into the narrow chamber 20 to bridge two contacts 22. An adjustable stop 44 serves to control the differential of the switch. It is stated that owing to the almost hemi-spherical surface of mercury 30 in the chamber 20 the switch will junction at angles up to 45 degrees from the vertical.