baber/WOPTO huggingface dataset:
Patent GB-1490006-A (GB)
Title: Ultrasonic cutting apparatus
IPC: D05B65/00
Filed: 1975-11-05
Abstract: 1490006 Cutting apparatus CAVITRON CORP 5 Nov 1975 [12 Dec 1974] 45933/75 Heading B4B [Also in Divisions D1 and H2] An ultrasonic cutting mechanism comprises a U-shaped flexural member 36 having two legs 38, 39 in opposing relationship, ultrasonic drive means 25 (see Division H2) connected to the member 36 to excite it and cutting means 42, 43 mounted on each leg in opposing relationship to each other for cutting material placed therebetween. Embodiments are disclosed wherein the drive member is alternatively disposed, e.g. aligned with the axis of symmetry of the bar 36; the ends of the legs 38, 39 carrying the cutting means 42, 43 may be bent out of the general plane of the member 36 (Fig. 6, not shown). One cutting member may comprise an anvil providing a rectangular or Vee-section slot receiving the rectangular or Vee-section cutting portion of the other member. Raised surfaces 40, 41 on the legs impact on each other when the flexural member is vibrated; these are stated to prevent undue wear on the cutting tips, and to induce secondary modes of vibration of larger amplitude than the driving mode and to aid in drawing material between the tips. When the device is employed in a sewing machine (see Division D1) suction devices (45, 54, 62, 63, Fig. 1, not shown) are provided to draw the thread or thread chain to be cut down through an opening (46) in the needle plate (50) to pass between the cutting means.
Patent GB-929699-A (GB)
Title: Catalysts for the reforming of hydrocarbon oils or fractions thereof
IPC: B01J23/42
Filed: 1961-12-22
Abstract: A reforming catalyst comprises an alkyl orthosilicate and a platinum group metal, i.e. Pt, Pd, Rn, Rh, Os and Ir on a carrier. Additionally the catalyst may contain a halogen, e.g. Cl or F. Specified alkyl orthosilicates are methyl, ethyl, propyl and butyl orthosilicates which may be absorbed on the carrier by impregnating the latter with a non-aqueous solution of the orthosilicate in, for example, cyclohexane, benzene, pentane, isopentane mixtures thereof. Carriers mentioned are Al2O3 and SiO2.  In examples (1) desulphurised naphtha is reformed at 475 DEG C. and 17,5 atmospheres gauge in the presence of a catalyst as described and (2) n-heptane is reformed at 500 DEG C. and 17,5 atmospheres gauge.
Patent GB-1011238-A (GB)
Title: Improvements in and relating to electric relative humidity measuring apparatus
Inventor: LEWIS BRIAN GEORGE
IPC: G01N27/04
Filed: 1962-12-07
Abstract: 1,011,238. Measuring humidity electrically. FOSTER INSTRUMENT CO Ltd. Nov. 26, 1963 [Dec. 7,1962], No. 46251/62. Heading G1N. A relative humidity gauge includes a selfbalancing bridge comprising a sliding resistance R6 (Fig. 1) driven by a detector and motor D, a wet and a dry temperature sensitive resistor R3, R4, and, shunting R6, a variable resistor R7 whose setting depends upon the ambient temperature (i.e. dry bulb). The resistor R7 corrects that part of the depression of the wet resistor temperature which is due to ambient temperature variation as opposed to humidity variation. The correction may be made at intervals by switching the bridge configuration of Fig. 1 to that of Fig. 2 where R7 acts as R9, and the dry resistor R4 controls the position of slider R9 in accordance with the ambient temperature. Alternatively the bridge of Fig. 2 may be entirely separate and the sliders of R7 and R9 mechanically linked together. The detector D could be replaced by a simple indicating instrument, or by an electronic amplifier whose output would be a function of relative humidity.
Patent GB-1244745-A (GB)
Title: Non-linear resistance material
Inventor: MASUYAMA TAKESHI
IPC: H01C7/112
Filed: 1968-10-01
Abstract: 1,244,745. Modified zinc oxide. MATSUSHITA ELECTRICAL INDUSTRIAL CO. Ltd. 1 Oct., 1968 [9 Oct., 1967; 17 Oct., 1967 (5); 22 Jan., 1968 (2); 12 Feb., 1968; 10 May, 1968 (2)], No. 46569/68. Heading C1A. [Also in Division Hl] A voltage variable resistor has two ohmic contacts applied to opposite surfaces of a sintered body containing 80-99À95 mole per cent of ZnO and 0À05-10 mole per cent Bi 2 O 3 . Up to 15 mole per cent total of one or more of the following oxides may also be present: CoO, MnO 2 , In 2 O 3 , SnO 2 , BaO, NiO, Cr 2 O 3 , TiO 2 , B 2 O 3 , Al 2 O 3 , MoO3, Ta 2 Og and Fe 2 O 3 . Several groups of preferred composition ranges are given. The ohmic contact may be provided by electroless or electrolytic deposition of Ag, Cu, Ni or Sn; by vapour deposition of Al, Zn, Sn or In; or by spray-metallization of Cu, Sn, Zn or Al. The bodies may be produced by a preliminary calcining at 700-1000‹ C., pulverizing the product, wet-milling, pressing the powder (bound with water or polyvinyl alcohol) into a mould under 100-1000 kg.cm.<SP>-2</SP>, sintering in air (or in N 2  or Ar to obtain low resistivity) for 1-3 hours, and furnace-cooling (or air quenching, for low resistivity) to room temperature. The sintering temperature may be 800-1200‹ C. for materials containing only Bi 2 O 3  or 1000- 1450‹ C. for others. In variant methods the ZnO alone or with oxides other than Bi 2 O 3  is sintered to form a body to the surfaces of which is applied a paste containing solid Bi 2 O 3  (or a compound yielding this on firing). Bismuth diffuses in on heating at 1000-1400‹ C. for 1 hour in air, N 2  or Ar and is uniformly distributed throughout this body, conditions being chosen to give 0À1-1À0 mole per cent Bi 2 O 3  in the product. MnO 2  and/or CoO (or compounds yielding these, or metallic Mn and/or Co) may be included in the paste. The paste may be made up with a solution of an epoxy, vinyl, or phenolic resin. Alternatively, Bi, Mn and Co may be applied in the form of a borosilicate frit (the glass should not contain monovalent ions such as Li<SP>+</SP>, Na<SP>+</SP>, or K<SP>+</SP>). The bodies may be lapped with SiC before application of the electrodes. Leads may be attached to the electrodes using low melting point solder or a silver powder-resin paste.
Patent GB-1106784-A (GB)
Title: Improvements in or relating to recording and/or playback systems
IPC: H04N5/921
Filed: 1965-02-05
Abstract: 1,106,784. Video recording and playback. IIT RESEARCH INSTITUTE. 5 Feb., 1965 [11 Feb., 1964], No. 46656/67. Divided out of 1,106,781. Heading G5R. Video signals are recorded in a longitudinal track on a moving magnetic tape by means of a non-rotating magnetic head which is supplied during recording with a bias signal in the megacycle range. The description is the same as that in Specification 1,106,783.
Patent GB-1132489-A (GB)
Title: Static inverter system
IPC: H02M7/515
Filed: 1966-10-19
Abstract: 1,132,489. Automatic control of voltage and current. BORG WARNER CORP. Oct.19, 1966 [Nov.1, 1965], No.46764/66. Heading G3R. AnA.C. load 25, e.g. a motor, is supplied from a static inverter 21 which is energized from a D.C. source 13 by way of a chopper circuit 16 and a filter 20; the direct voltage delivered to the inverter 21 is sensed and applied over a line 150 to a potentiometer 129 for comparison with a reference voltage derived from a source 26, the resultant voltage being applied by way of the potentiometer tap 139 and line 35 to a chopper control circuit 36 which also receives, on line 37, a signal representative of the direct current delivered to the inverter 21. The arrangement is such that the chopper circuit 16 which includes a thyristor Fig.3 (not shown), operates respectively to decrease, or increase, the direct voltage delivered to the inverter 21 when the said voltage exceeds, or is below, a preset value, the current' signal on line 37 operating to disable the chopper circuit 16 should the chopper current exceed a predetermined value. The inverter 21 Fig.2 (not shown) includes thyristors and is driven in known manner by a circuit including an oscillator 27, a ring counter 28 and a logic circuit 30, the oscillator 27 having inputs derived from the line 150 and the source 26. Thus the chopper circuit 16 is automatically regulated in a voltage limiting mode so that the D. C. energy passed to the inverter 21 equals the A. C. energy passed to the load but, should the chopper current reach a predetermined value, the circuit 16 operates in a current limiting mode. To ensure adequate communication under initial starting conditions, when the load current may be high but the output voltage and frequency low, an auxiliary circuit 40 is provided for energizing the commutating capacitors of the inverter 21, and the operation of this circuit is described with reference to Fig.4 (not shown).
Patent GB-1243696-A (GB)
Title: Method of producing self-sustaining cakes or wafers of green crop and a device for performing this method
Inventor: SVENSSON STIG AKE GOSTA
IPC: B30B11/16
Filed: 1969-09-23
Abstract: 1,243,696. Food preparations. ALFALAVAL A.B. 23 Sept., 1969 [23 Sept., 1968; 13 Dec., 1968], No. 46797/69. Heading A2B. In the preparation of self-sustaining fodder wafers, a first portion of green crop which has been crushed is mixed with a second uncrushed portion of green crop, the first portion acting as a binding agent. Thus a homogeneous mass of the green crop may be partially crushed with mixing to provide the desired mix. A suitable apparatus comprises two gear wheels, with teeth of involute form, which are movable towards and away from each other, whereby, when green crop is passed there between, only a portion is crushed. Various forms of surface configurations of suitable crushing rollers are discussed.
Patent GB-1237537-A (GB)
Title: Movable lip for dock levellers
Inventor: BORLEY ALFRED JAMES
IPC: B65G69/28
Filed: 1967-10-16
Abstract: 1,237,537. Dock leveller. G. E. & L. V. RICH Ltd. 3 Oct., 1968 [16 Oct., 1967], No. 47101/67. Heading B8E. A dock leveller 1 is provided with a lip 2 mounted on a carriage 10 having wheels 11 running on angle members within the leveller. A retractable handle 4 connected by pulleys 5, 6 connected by a flexible drive can operate a linkage to move the carriage 10 to move the lip 2 between the extended position shown and a retracted position within and below the deck of the leveller. A row of levellers can be provided for the side loading of vehicles. (For Figure see next page.)
Patent GB-1221795-A (GB)
Title: Microwave heating applicator
Inventor: KOHLER FRED
IPC: H05B6/78
Filed: 1968-01-09
Abstract: 1,221,795. Microwave heating apparatus. VARIAN ASSOCIATES. 9 Jan., 1968 [16 Jan., 1967], No. 47115/69. Divided out of 1,221,794. Heading H5H. The description is substantially identical to that of the parent Specification but the claims relate to the mode stirrer and its rotation by an air flow. Reference has been directed by the Comptroller to Specifccation 1,135,477.
Patent GB-1406494-A (GB)
Title: Forming sheet metal
IPC: B21D53/36
Filed: 1972-10-13
Abstract: 1406494 Punching; making fasteners; bending; stamping D LEONARDT & CO (HIGHLEY PENS) Ltd 12 Oct 1973 [13 Oct 1972] 47246/72 Headings B3W B3A B3E and B3Q In the making of an article from sheet metal, sheet is fed step-by-step to a blanking die at a first station, blanks fall one at a time through the die to a second station and are fed mechanically to a third station at which a forming operation is carried out, operations taking place simultaneously at the first and third stations and the moving of a blank to and from the third station taking place between successive such operations. Strip is fed to a blanking punch and die, 18, 37 disposed at 45 degrees to the feed direction. The blank 10, Fig. 1, is stripped by spring- loaded pins 9 and falls through the die 37 into an opening in a shuttle 50 actuated by a pneumatic ram 51. During the return stroke of the punch 18 the shuttle moves the blank to a position overlying a forming die 39 and returns to underlie the die 37. The die 39 is movable vertically in a guide 41 and is urged upwardly by pins 42 acted on by a sleeve 43 of resilient material such as rubber. The shuttle has guides 56 at the die 37. The punch 19 and die 39 bend up the longitudinal edges of the blank to form a channel section. A stripper causes the formed blank to move to a position in which it can be blown from the machine as the die 39 rises. Alternatively the formed blank can be pushed by the leading edge 55 of the shuttle at the next feed stroke to a second forming punch and die 20, 40 which bend the tail 13 to lie between, and follow the shape of, ears 11 of the blank. The ejector blows the finished blank to a shoot via a sensing device which stops the machine if a jam occurs. Indicia may be stamped on the strip at a marking punch (27) Fig. 7 (not shown) and die 36, Fig. 8, before the blanks are punched out. The strip is located for the blanking and forming operations by a pair of punches (28) and pilot pins (29), Fig. 6 not shown and fixed edge guides 35. The punches 18, 27 and (28) and the pilot pins (29) operate in apertures in a stripper plate 30. The punches and dies are mounted in bolsters 16 and 17 respectively which are aligned by guide posts 31, 33 enclosing linear ball bearings 32. A spigot 26 on the bolster 16 is for attachment to a press ram. The shuttle may alternatively be actuated by cam means operated by the press.
Patent GB-1531016-A (GB)
Title: Buti-rosin a derivatives
IPC: B01J25/00
Filed: 1975-11-17
Abstract: 1531016 3<SP>1</SP>-Deoxybutirosin A BRISTOLMYERS CO 17 Nov 1975 [29 Nov 1974 29 Jan 1975] 47321/75 Heading C2C 3<SP>1</SP>-Deoxybutirosin A and non-toxic, pharmaceutically acceptable acid addition salts thereof are prepared by treating a halide or thiocarboxylic ester of the general formula wherein Z is a group of the formula in which each of R<SP>1</SP> and R<SP>2</SP> is H, Cl, Br, F, OH, NO 2 , CF 3 , SO 3 H, C 1-3  alkyl or C 1-3  alkoxy and X is I, Br or acylthio, with hydrogen in the presence of Raney nickel and removing by methods in actual use or described in the chemical literature the blocking groups from the resulting protected 3<SP>1</SP>-deoxybutirosin A of the general formula followed optionally by salification of the product. Tetra-N-benzyloxycarbonyl-3<SP>1</SP>-deoxy-butirosin A may be isolated in this procedure. Novel halides of the first general formula above (X is I or Br) are prepared by treating the corresponding 3<SP>1</SP>-O-tosyl derivative with an alkali metal halide and novel thiocarboxylic esters of the first general formula above (X is acylthio) are prepared by reacting the corresponding 3<SP>1</SP>-O-tosyl derivative with a thiolacylate. 2<SP>11</SP>,6,α - Tri - O - acetyl - tetra - N - benzyloxycarbonyl - 3<SP>11</SP>,5<SP>11</SP> - O - isopropylidene - 3<SP>1</SP> - O - tosylbutirosin A is prepared by treating butirosin A with benzyl chloroformate, treating the resulting tetra-N-benzyloxycarbonyl derivative with 2,2-dimethoxy-propane and p-toluenesulphonic acid to give the 3<SP>1</SP>,4<SP>1</SP>,3<SP>11</SP>,5<SP>11</SP>-di-O-isopropylidene derivative and 3<SP>11</SP>,5<SP>11</SP>-mono-O-isopropylidene derivative, treating the di-O-isopropylidene derivative with acetic anhydride, heating the resulting 2<SP>11</SP>,6,α-tri-O-acetyl derivative with aqueous acetic acid and acetone, treating the resulting 2<SP>11</SP>,6,α,tri-O-acetyl-tetra-N-benzyloxycarbonylbutirosin A with 2,2-dimethoxypropane and p-toluenesulphonic acid and reacting the resulting 3<SP>11</SP>,5<SP>11</SP>-O-isopropylidene derivative with tosyl chloride. Reference has been directed by the Comptroller to Specification 1,480,772.
Patent GB-1519317-A (GB)
Title: Adjustable electrolysis electrode
IPC: C25B11/02
Filed: 1975-11-17
Abstract: 1519317 Adjustable electrolysis electrode OLIN CORP 17 Nov 1975 [27 Dec 1974] 47324/75 Heading C7B An electrode comprises a pair of spaced generally parallel electrode surfaces 10 and a rotatable shaft 14 so attached to the surfaces that upon rotation of the shaft the space 12 may be varied. A cranked or cammed shaft may be used inside the space and is rotatable e.g. by nut 20. Where a plurality of electrodes exists a space bar 25 at the top and/or bottom of each shaft is used to maintain electrode position and spacing. The bar may be attached via clips 16 to conductive supports 28 inside of the surfaces, and which are attached at their other ends to an electrode plate. The shaft is electrolyte resistant and may or may not be conductive.
Patent GB-1029808-A (GB)
Title: Apparatus for horizontally supporting a non-vertical drill string extending from a floating drilling base
IPC: E21B7/128
Filed: 1963-12-02
Abstract: 1,029,808. Pistons. COMPAGNIE GENERALE D'ELECTRICITE. June 26, 1964 [July 3, 1963], No. 26482/64. Heading F2T. [Also in Division H1] Apparatus comprising a cylindrical container 101 divided in two by a movable partition 105 having liquid on one side, has the partition 105 secured to the wall of a hollow flexible annular body 107 which is secured to the container wall at 109 and contains a rigid cylindrical holding member 108. The member 108 may have rollers on its edges to facilitate sliding of the flexible body 107 when partition 105 moves. Body 107 may be filled with liquid. A visible float 127 is lifted by any liquid which leaks past partition 105. Movement of partition 105 is caused by expansion or contraction of e.g. oil in a transformer tank which is connected to oil in the cylindrical container through a flexible pipe 131. Air leaking through partition 105 can be removed by removing by removing stopper 114 with body 107 wedged in its highest position. The liquid may be contained in the lower half of container 101 (Fig. 1, not shown).
Patent GB-1523670-A (GB)
Title: Sound producing means for toy vehicle
IPC: A63H17/32
Filed: 1976-11-16
Abstract: 1523670 Toy sound producing apparatus YUHGEN KAISHA MARUSHO 16 Nov 1976 [9 April 1976] 47771/76 Heading A6S [Also in Division G5] A toy vehicle, e.g. a toy train, includes a variable sound producing apparatus in which a rotating fan 18 Fig. 1, draws air across the entry port 20 of a resonance chamber 16 provided with an opening 24, Fig. 2, and an open-ended tube 26 which may be closed by the flat end 30b of a lever 30. The other end 30a of the lever engages a cam face 28a, 28b of a cam rotated to pivot the lever 30 about a pin 32 against the biass of a spring 29, thus closing, &c the open end of the tube 26. The cam 28, the face 18 and the axle 56 of the toy vehicle are connected by toothed gearing, and the toy is powered by a spring, &c. motor.
Patent GB-1345952-A (GB)
Title: Fastener magazine feeding mechanism
IPC: B25C1/18
Filed: 1971-10-14
Abstract: 1345952 Fastener driving tools OMARK INDUSTRIES Ine 14 Oct 1971 [15 Oct 1970] 47880/71 Heading B4C A fastener magazine 34is fed stepwise through a passage 44 in a housing 48 detachably mounted on a cartridge actuated tool 10 so as to align successive fasteners 38 with a driving ram 14 of the tool by advancing movement of an osicllatably movable mechanism contained in the housing 48 and operated each time the tool is pressed against a work surface to cock a firing pin 20. Movement of the magazine with the mechanism during its return movement is prevented by means carried by the housing. The magazine includes racket teeth 42 engaged by a pin 54 of the mechanism slidably carried by a substantially quadrant shaped pivoted lever 50. Each time the tool is cocked, a rod 46 is forced into the housing 48 to effect pivoting of the lever 50 against bias of spring 52, thus causing engagement of the pin 54 with a tooth 42 and advancement of the magazine. When the tool is removed from the work surface after firing, the spring 52 returns the lever 50 to its initial position and pin 54 rides over a cam surface 42b of the next tooth 42. A spring biased member 66 constituting the return movement preventing means engages in valleys 40 to align the barrel bore with the bores in the magazine, and advancement of the magazine effects a eamming action on the member 66. When the final valley 40a is reached the member coacts with a slot 76 so that further camming of the member cannot take place until a further magazine with a suitably shaped projection 74 is inserted into the passage 44 (Fig. 7, not shown), the camming of the member 66 from the valley 40a being effected manually.
Patent GB-1161474-A (GB)
Title: Apparatus for Growing Crystals
IPC: B01D9/00
Filed: 1966-10-26
Abstract: 1,161,474. Growing crystals. TSUKISHIMA KIKAI CO. Ltd. 26 Oct., 1966 [27 Oct., 1965], No. 47996/66. Headings BIB, B1C, B1D and BIG. A crystallizer comprises a tube having a fixed lower part 2, and a rotatable upper part 3 carrying inner impeller blades 4 and outer blades 7 creating a circulation through the tube. When crystal have .grown to a predetermined size they separate from the circulating flow, fall into the classifying leg 9 and are withdrawn at 10, while the liquid from which they have been removed moves upwardly outside the baffle 11 and is discharged at 12 for re-heating and re-cycling through inlet 1. Solvent vapour leaves at 13 to waste or recovery. The impeller blades are so pitched and dimensioned that the mass flow rate of the magma is the same up the tube and downward outside it, and the impeller is driven so that the crystals fall faster than the descending liquid while the inner impeller 4 assist the upward flow only sufficiently to compensate for the .resistance of .the tube support; in consequence wear of the crystals is much reduced. In another embodiment (Fig. 3, not shown) the draft tube has three parts of which the middle (22) rotates and overlaps the lowest (21) which is smaller in diameter and may contain an additional impeller (24). The outer impeller (7) in this case has a greater mass flow than the inner (4) so that part of the liquid containing the smaller crystals circulates through the annular gap between the tube portions (21), (22) while part ascends through k the lowest tube portion (21) depositing in the bottom of the apparatus crystals which have reached a predetermined uniform size.
Patent GB-1472965-A (GB)
Title: Haloformates
IPC: G01N31/00
Filed: 1974-11-07
Abstract: 1472965 Haloformates PIERCE CHEMICAL CO 7 Nov 1974 [28 March 1974] 48108/74 Heading C2C The invention comprises compounds of the formula where X represents a halogen atom, R represents a straight or branched chain alkylidene group containing up to 6 carbon atoms and n is 0 or 1. The compounds are prepared by reacting the appropriate hydroxy compound with a carbonyl dihalide in the presence of an acid binding agent. The compounds may be used in the analytical determination of an amine.
Patent GB-1083418-A (GB)
Title: Improved sound warning device for cars
IPC: G10K11/02
Filed: 1965-11-12
Abstract: 1,083,418. Sound warning device for cars. MIXO. Nov. 12, 1965 [Nov. 12, 1964], No. 48232/65. Heading G5J. In an electromagnetic car hooter of the type in which a vibrating diaphragm communicates with a helically wound horn, the horn, here shown developed, consists of a length L1 of constant cross-sectional area S1, a conical portion length L2 of section varying from crosssectional area S2 to S3, and a length L3 of exponentially increasing section terminating in a trumpet of cross-sectional area S4. For producing a note of wavelength # the dimensions used are: L1=#/4À4, L2=S1/3À1, L3=L2/2À5, errors of Œ10% in the denominators being tolerated. The make and break arrangement consists of a screw adjusted fixed contact 16 and a resiliently mounted contact 13 moved by the diaphragm (Fig. 3, not shown). Pressure between the two surfaces 14, 15 of the contact breaker is maintained constant by connection of the contact breaker to the housing box via a member 18 more flexible than the stationary strip 16. Details of the plunger and of the support mounting of the movable contact are given.