baber/WOPTO huggingface dataset:
Patent GB-1431318-A (GB)
Title: Trimming potentiometers
IPC: H01C10/14
Filed: 1973-08-01
Abstract: 1431318 Potentiometers BUNKER RAMO CORP 1 July 1974 [1 Aug 1973] 36624/73 Heading H1S The contact-carrying member 15 of a trimming potentiometer is rotated by means of a toothed adjusting member which engages teeth 20 on a bevelled peripheral portion of member 15, a plurality of alternative pivot points 28 being provided for the tool. In a first embodiment, Fig. 1, pegs 28 in recesses 27 engage a bore 29 in the pinion 22 of an adjusting tool 21, Fig. 3, rotation of the tool in this position effecting fine adjustment of the potentiometer. Coarse adjustment is effected by inserting a tongue 24 on the tool into slot 18. In a second embodiment (Fig. 4, not shown) member 15 has a double-bevelled toothed periphery so that the tool can be mounted on a peg (30) parallel to the axis of member 15. In modifications a peg on tool 21 may engage bores in the recesses 27, or the walls of the recesses may alone define the pivotal positions of the tool. In a third embodiment, Fig. 5, three mutually perpendicular pegs are arranged for press-fitting with a bore 34 in the pinion of an adjusting member 31 which has a slot 32 to permit fine adjustment by a screw-driver.
Patent GB-1014461-A (GB)
Title: Improvements in or relating to film resistors
IPC: H01C7/00
Filed: 1962-09-27
Abstract: A metal film resistor comprises a thin film of titanium deposited on a substrate, the film being saturated with nitrogen by heating the film in a nitrogen atmosphere.  The titanium film may be deposited through a mask on to a glass or glazed ceramic substrate by vacuum evaporation or cathodic sputtering to a thickness of 400-1500 Angstroms, subsequently the coated substrate is placed in a tube furnace in the presence of free flowing nitrogen and heated to 200-450  DEG C. for a period of 1 - 3 hours.  Details are given of suitable processes and apparatus for the cathodic sputtering and vacuum evaporation, Figs. 1 and 2 (not shown).
Patent GB-968979-A (GB)
Title: Method of stabilising solutions in strong sulphuric acid of polyacrylonitrile and copolymers of acrylonitrile
Inventor: IRION WILHELM
IPC: C08K3/30
Filed: 1963-07-03
Abstract: In a modification or improvement of the method of the parent Specification for stabilizing solutions of acrylonitrile polymers in strong sulphuric acid by adding inhibitors of saponification, there is added to the solution a lactone such as butyrolactone, pyrophosphoric acid, acetic acid, acetic anhydride or n-valeramide. In examples sulphuric acid solutions of copolymers of acrylonitrile and methyl acrylate are stabilized with (1) butyrolactone, (2) pyrophosphoric acid, (3) acetic acid and (4) acetic anhydride.
Patent GB-803692-A (GB)
Title: Method of protecting foodstuffs from fungal attack
IPC: A23L3/358
Filed: 1956-12-05
Abstract: Food, e.g. fruit, is protected from fungal attack by storage in the presence of solid ammonium tetraborate and a hydrated substance tending to release water to the surrounding atmosphere, such as Glauber's salt; it is stated that the rate of ammonia release from the tetraborate increases with increasing humidities.  For citrus fruits, a proportion of 0.02-0.5 per cent by weight of solid ammonium tetraborate is specified.
Patent GB-842454-A (GB)
Title: Improvements in or relating to sheet handling machines
IPC: B31B70/00
Filed: 1956-12-06
Abstract: 842,454. Making envelopes. WINKLER, R., and DUNNEBIER, K. Dec. 6, 1956 [June 8, 1956], No. 37290/56. Class 94(2). [Also in Group XVI] Envelope blanks &c. are fed between the periphery of a suction wheel and coaxial curved guides which facilitate alignment or overlapping of the blanks prior to passage to folding means &c. In one embodiment, originally overlapped envelope blanks 1 are fed by rollers 2, 3, 6, 7 to a suction wheel 38 flanked by wheels 37 carrying aligning pins 18. The blanks are drawn over curved guides 11, 12 and released into the bite of rollers 13, 14 for discharge. Alignment takes place as they are released. In another embodiment, Figs. 3, 4 (not shown), blanks are fed singly between the suction roller and curved guides, no aligning wheels being provided. They are discharged at a slower rate than that of entry and are thus overlapped.
Patent GB-999356-A (GB)
Title: Gyro motor bearing testing device and method
IPC: G01P3/486
Filed: 1963-09-23
Abstract: 999,356. Bearings. BENDIX CORPORATION. Sept. 23, 1963 [Sept. 25, 1962], No. 37379/63. Heading F2A. A method of testing ball bearings consists in applying a preload to an outer race thereof and in rotating the outer race relative to an inner race of the bearing, the speed being constant and the number of revolutions of a cage being counted so as to determine the differential speed thereof in relation to the speed of the outer race. In an embodiment, a gyro rotor 10, Fig. 1, having end bells 14, is mounted in ball bearings 2<SP>0</SP>. A shaft 18, which is fixed, has an inner race formed thereon and is mounted between bracket members 25, , 26 of a test fixture 30. Balls 31, Fig. 4, are urged towards a ramp portion 32 of the inner race by a pre-load member 37, the latter engaging a face 40 of the outer race 35. A cage 43, Fig. 3, has an end portion which is alternatively coated with black paint 45 and white paint 47 so as to reflect light at periodic intervals and indicate rotation of the cage. The light supplied by a source 50, Fig. 6, is reflected on to photo-cells 55, 57 which are connected to a counter 60. Thus the speed of the cage is obtained and is compared with the speed of the outer race 35 80 as to determine the point where excessive pre-load obtains.
Patent GB-945016-A (GB)
Title: Improvements in creels for textile yarn preparing and spinning machines
Inventor: BROOKS JAMES
IPC: D01H1/18
Filed: 1961-10-18
Abstract: 945,016. Creels. T. M. M. (RESEARCH) Ltd. Oct. 2,1962 [Oct. 18, 1961], No. 37410/61. Heading D1J. The skewers 15, of the bobbin rovings 14, are mounted between bearings 191 and 161 that are adjustably positioned on upper and lower hollow rails 12 and 13 respectively, there being means mounted in longitudinal slots in said rails for securing the bearings in any desired setting. As shown the skewer holder 16 is slidable on the hollow rail 13 and can be locked thereto by a bolt (not shown) extending through a limb of the holder 16 and through the longitudinal slot in the rail 13 to engage a rectangular nut within the rail 13. The bearing 191 is part of a socket-like insert that is slidable within the upper rail 12 and can be locked thereto by means of a setscrew (not shown) extending through the insert and arranged when tightened to bear against the inner wall of the rail 12.
Patent GB-1194645-A (GB)
Title: Hydromassage Assembly
IPC: A61H33/00
Filed: 1968-08-06
Abstract: 1,194,645. Hydromassage apparatus. JACUZZI RESEARCH Inc. 6 Aug., 1968 [4 March, 1968], No. 37459/68. Heading A4N. [Also in Divisions B1 and F1] A hydromassage apparatus of the type disclosed in Specification 1,194,644 comprises a drive motor 9, Fig. 2, a jet assembly 5, Fig. 1, including a pump, Fig. 3 (not shown), the assembly being located in a tub 3, flexible drive shaft 58 connecting the motor and the pump, and suction cups (95) located on the bottom of the jet assembly 5 and removably anchoring it to the floor of the tub. The drive shaft which may have a cable construction is electrically insulated from the motor shaft 21, at the motor end, by a flexible coupling assembly 23 comprising a pair of plastic shaft connector sections 24, 25 joined by a rubber intermediate section 26. The drive shaft 58 is enclosed in a flexible and insulating housing 89. A modification embodies a flexible nylon rod to be used as the drive shaft, avoiding the need for an insulating coupling assembly. The period of operation of the massaging jet, which contains air bubbles drawn through an air intake means 99, may be determined by the bath occupant by manual disconnection of the pump or by a timing mechanism on the motor circuit.
Patent GB-1067949-A (GB)
Title: Filling device for meat loaf moulds
IPC: A22C7/00
Filed: 1965-09-02
Abstract: A machine for filling meat loaf moulds comprises a throat which is adapted to receive meat under pressure and which directs the meat into one or other of a pair of spaced stuffing horn units which project from the throat, in dependence upon the position of a valve member which closes one or other of the horn units, a pair of mould units each of which slips telescopically over the corresponding horn unit and moves off the horn as the mould fills with meat, there being means for controlling the movement of the valve in dependence upon the movement of the movement of the mould units on and off the horn units.  The mould units can be carried on reciprocating carriages, the movement of the carriages actuating the valve control.  Each horn unit may comprise a pair of vertically spaced stuffing horns, and the two units may be laterally spaced, the valve means being a gate which swings across the opening of one or other horn unit by actuation by a double acting pneumatic cylinder and piston, the supply of air to the appropriate sides of the piston being controlled by valves actuated by the movement of the carriage, such that only when one carriage is fully retracted does the gate operate.  Reference has been directed by the Comptroller to Specification 999,936.
Patent GB-523168-A (GB)
Title: Improvements in gilled-tube heat-exchangers and particularly motor-vehicle radiators
IPC: F28F1/02
Filed: 1938-12-24
Abstract: 523,168. Radiators for motor vehicles. SERCK RADIATORS, Ltd., and MARTIN, A. M. Dec. 24, 1938, No. 37559. [Class 64 (iii)] In heat-exchangers particularly for liquids of motor vehicles of the kind in which tubes b for liquid pass through gill plates a arranged parallel with each other at right angles to the tubes and air or other gas passes between the plates, the front and also the rear edges of the plates are interconnected by reinforcing wires, rods or strips d soldered thereto. Wires d may be passed through holes adjacent the edges of the plates, which form flanges e round the wire and flanges c round the tubes b. The wires may be soldered in notches in the edges of the plates and may extend between strengthening plates f. The wires d are placed in front in positions opposite the spaces between the tubes and in the rear immediately behind the tubes.
Patent GB-903645-A (GB)
Title: An apparatus for the manufacture of artificial threads according to the wet-spinning method, as well as the threads produced therewith
IPC: D01D5/06
Filed: 1959-11-05
Abstract: <PICT:0903645/IV(a)/1> <PICT:0903645/IV(a)/2> Wet spinning apparatus comprises a spinneret, a spinneret holder, a rigid tube in front of and coaxial with the spinneret, the tube being open at both ends and having an internal diameter greater than that of the outer circle of orifices in the spinneret face but less than that of the spinneret holder, and a number of radial passages leading from the outside into a disc-shaped space between the face of the spinneret and the mouth of the tube, the passages being separated from one another by partitions.  As shown in Figs. 1 and 2, a spinneret 4 is mounted in the usual manner on a spinneret holder 1 comprising a male part 2 and a female part 3 the front side 5 of which is of substantially hemispherical shape. The spinneret holder 1 is mounted in the usual manner on the delivery end of a spinning solution supply tube 6.  The cap nut 3 of the spinneret holder 1 is provided with a number of radial partitions 7 whose dimension in the radial direction is greater than the width of the flow passages 8 formed between each two adjacent partitions, the dimension being, for example, 1,5 and preferably 2,0 times as large as the width.  In addition, the dimension of the partitions in the direction parallel to the spinneret axes and at and near the inlets of the flow passages 8 is large relative to the width of the flow passages, for example, 1,5 and preferably at least 4 times as great.  The opposed radial faces of each partition lie in planes which converge to intersect on a line parallel with the spinneret axis and located between the inner edge of each partition and the outer circle of spinning orifices.  The faces of each partition are parallel with the opposing faces of the adjacent partitions, and the length of each passage 8 between adjacent partitions in a direction parallel to the spinneret axis gradually decreases in the direction towards the spinneret axis, giving a gradual decrease in the area of the passages in the latter direction.  The edges of the partitions 7 towards and away from the spinneret axis are preferably rounded.  The partitions 7 provided on the lower half of the periphery of the spinneret holder 1 have at their free ends hook-shaped projections 9 fitting over a flange 10 of a tube 11 in combination with the head end of the partitions.  The tube 10 is thus in the operative position maintained firmly coaxial with the spinneret, but by moving it upwardly can be readily disengaged from the spinneret holder 1.  The width of the passages 8 is preferably 3 to 4 mm. and their length parallel to the spinneret axis at their inlets is preferably between 8 and 25 mm.  The apparatus reduces undesirable turbulence of the spinning bath liquid drawn into the space between the spinneret face and the mouth of the tube 11.
Patent GB-1492122-A (GB)
Title: Sliding clasp fastener tape
IPC: A44B19/34
Filed: 1975-09-12
Abstract: 1492122 Sliding clasp fasteners YOSHIDA KOGYO KK 12 Sept 1975 [27 Sept 1974] 37649/75 Heading E2S [Also in Division D1] In a warp-knitted stringer tape for a sliding clasp fastener, wales 11a, 11'a located adjacent and inwardly of the respective longitudinal edge portions 13, 13' on which fastener elements E may be mounted are formed from fewer threads than the remaining wales, this facilitating the sewing of the tape on to a garment. The fabric in Fig. 1 comprises chain stitches 10a, tricot stitches 10b and 10c and reinforcing warp threads 10d whereas in the wales 11a, 11'a only the stitches 10b, c are formed. The tape may be used for a concealed fastener as in Fig. 3 in which the wales 11a, 11'a serve as guide lines when sewing the tape to front and back fly parts G 1 , G, along seams S', S" respectively. The fastener element E is of helical form. Alternatively the tape may be used for an exposed fastener. The wales 11a, 11'a which are flexible are preferably in symmetrical positions on the tape but need not be so. Specification 1492121 is referred to.
Patent GB-807053-A (GB)
Title: Improvements relating to anti-tank mines
Inventor: MALM KARL OLOF BERTIL
IPC: F42C14/08
Filed: 1956-12-11
Abstract: 807,053. Land mines. BOFORS, A. B. Oct. 16, 1957 [Dec. 11, 1956], No. 37824/56. Class 9(2) A land mine having a casing 1 moulded from explosive reinforced with glass fibres as in Specification 787,832 contains a moulded charge 2 and a primary charge 3, preferably of pressed explosive, above which is an igniter screwed into a socket 4. A handle and means (not shown) for attaching camouflage may be provided. The igniter comprises a hollow body 6 of resilient material enclosing a rigid shaft 7 having a spherical end surface 9, the outer part of the body 6 being housed in a member 10 having radial arms 11 and the inner part of the body being rigidly connected to a hollow threaded plug 12. The plug is closed by a member 15 housing a plate 13 having a convex surface abutting the surface 9 and a depending flange restin gon a conical element 16 of spring material. A firing pin 17 projects axially downwards from the element 16 and is aligned with a primer 18 housed in the member 15, so that on pressure being applied to one of the arms 11 the force is transmitted through the shaft 7 to the plate 13, which is crushed and snaps the element 16 from the rest position to drive the pin 17 against the primer 18 and fire the mine.
Patent GB-344934-A (GB)
Title: Improvements in or relating to clips and like gripping devices
IPC: C14B1/26
Filed: 1929-12-14
Abstract: 344,934. Friction grips; spring clips. TURNER TANNING MACHINERY CO., Ltd. and SCHETTLER, G. A., Railway Foundry, Bramley, near Leeds. Dec. 14, 1929, No. 38353. [Class 44.] A grip for stretching or suspending hides and the like is movably mounted on a rod on which it is frictionally locked by the pull of the article held. The hide clip consists of a fixed jaw 21 and a movable toothed jaw 23 and has an eye 1 with an inclined internal bore 3 so that it can be slid along the rod 5 away from the pull of the hide, but becomes locked thereon by the pull of the stretched hide 10 when released. The hide is released by depressing the handle 24 against the spring. A finger grip 25 enables the grip to be pulled backwards along the rod to stretch the hide. Specifications 339,688, [Class 44, Fastenings, Lock &c.], and 344,935 are referred to.
Patent GB-1125913-A (GB)
Title: Dynamic shaft centering and sealing device
Inventor: LOWE EDWIN CHESTER
IPC: F16J15/18
Filed: 1965-09-08
Abstract: 1,125,913. Shaft seals. BOBBINS AVIATION Inc. 8 Sept., 1965 [21 Sept., 1964], No. 38482/65. Heading F2B. The subject-matter of this Specification is substantially the same as that described in Specification 1,125,912 but the claims are concerned with the sealing bush 66.
Patent GB-995479-A (GB)
Title: Continuous extraction of poly-e-caproamide
IPC: C07D201/16
Filed: 1963-10-01
Abstract: A process for the continuous extraction of hot water soluble impurities from poly-e -caproamide comprises passing poly-e -caproamide particles having at least one dimension no greater than 0.25 inch and no dimension as small as 0.01 inch continuously downwards through a zone containing a countercurrently moving aqueous medium which is from 90 DEG  to 140 DEG  C. at the bottom of the zone and falls continuously towards the top where the temperature is at least 5 DEG  C. lower than at the bottom, the weight ratio of the rate of feed of the said aqueous medium to that of the particles being at least 0.8, the atmosphere over the said medium consisting of inert gas at a pressure of at least 5 p.s.i. and vapour of said medium, and the total pressure over the medium combined with the hydrostatic pressure at the bottom of the said zone being at least 5 p.s.i. greater than the vapour pressure of the medium at the bottom of the zone.
Patent GB-909956-A (GB)
Title: Improvements in or relating to rotary duplicating machines
IPC: B41L11/00
Filed: 1959-11-17
Abstract: 909,956. Printing-machines. RITZERFELD, W., and RITZERFELD, G. Nov. 17, 1959 [Nov. 18, 1958; Nov. 26, 1958], No. 38905/59. Classes 100 (1) and 100 (2). [Also in Group XXIV] Rotary machines; tripping-arrangements.- A rotary duplicating machine for direct printing from microscript lithographic master sheets comprises at least two printing drums carrying the master sheets, and a counter-pressure roller, the drums and roller being the same or approximately the same diameter, the roller having means for holding the leading edge of a copy sheet, and means being provided for maintaining during connection between the roller and drums when a retracting mechanism has been operated to move the roller away from the drums. Copy sheets 1 are fed to a stop 6, Fig. 2, and thence to grippers 30 on a counter-pressure roller 15, through the printing lines between the roller 15 and drums 54, 16, 110 carrying lithographic master sheets, and by means of a rotary suction device 33 on to a cable 34, having been printed in three colours. If a sheet is not correctly in position at the stop 6, a photo-electric cell 8 causes a control motor 10 to make one revolution, a cam 13 causing retraction of the roller 15 from the drums to avoid printing on the roller. The grippers 30 are operated by a stationary cam 29. In another form, Fig. I, two drums 16, 54 carrying lithographic master sheets co-operate with the roller 15 for printing in two colours, the direction of retraction by the cam 29 being symmetrical with respect to the drums. Feeding sheets.-Sheets 1, Fig. 1, are fed by a friction device 2a, between a lower, continuously-driven feed roller 74 and an upper feed roller 75 spaced therefrom, and against a front stop 76. When a sheet is correctly in position, a photo-electric cell 8 energizes an electromagnet 78, which swings a three-armed lever about a pivot 80, thereby raising the stop 76 out of the path of the sheet and lowering the roller 75 against the roller 74.
Patent GB-1270795-A (GB)
Title: Improvements in or relating to dental cement
Inventor: PENDRY NORMAN ROY
IPC: A61K6/06
Filed: 1968-08-15
Abstract: 1,270,795. Dental cement. NATIONAL RESEARCH DEVELOPMENT CORP. 6 Aug., 1969 [15 Aug., 1968], No. 38995/68. Heading C3N.  A dental cement is produced by mixing a dental cement powder and an aqueous phosphoric acid solution containing dissolved therein a physiologically innocuous metal of Group III of the Periodic Table having an atomic number greater than 13. The mixing provides a plastic mass which rapidly hardens as a dental cement but which remains plastic long enough to be formed into a desired shape. The dental cement powder and the aqueous phosphoric acid solution may comprise separate ingredients of a dental cement pack. The dental cement powder and the aqueous phosphoric acid solution may be mixed together in a proportion of 1À4-1À6 gms. powder to each 0À4 mls. of solution. The dental cement powder is preferably an alkaline earth metal aluminosilicate or a mixed alkali metal alkaline earth metal aluminosilicate which may contain P 2 O 5  and fluorides and preferably has a particle size of less than 40Á, whilst the phosphoric acid is preferably orthophosphoric acid, which may contain 5-25% by weight of free phosphoric acid. The phosphoric acid solutions preferably contain 2-14% by weight of the Group III metal as previously specified and this metal is preferably iridium although gallium and scandium or a rare earth metal are also suitable. The phosphoric acid solution may also contain besides the Group III metal previously specified up to about 3% by weight of aluminium or boron. The phosphoric acid solution may also contain a fluoride, e.g. hydrofluoric acid, in an amount sufficient to give up to 7% by weight of fluorine calculated as hydrogen fluoride or may contain up to 5% by weight of ethylene glycol.
Patent GB-1056935-A (GB)
Title: Processes for the preparation of 21,21-bis-hydroxymethyl pregnanes
IPC: C07J17/00
Filed: 1963-08-06
Abstract: The invention comprises a 3-hydroxy or 3-acyloxy-21,21-bis-(hydroxymethyl) pregnane of the general formula <FORM:1056935/C2/1> where R1 represents either a hydrogen atom or an acyl radical derived from an organic carboxylic acid having 1-18 carbon atoms and processes for the preparation thereof in which a 3-hydroxy-21,21-bis-(carboalkoxy) steroid of the formula <FORM:1056935/C2/2> in which R2 is either two hydrogen atoms or the oxygen atom = O of a keto group and R5 represents an alkyl group having 1-5 carbon atoms is reduced to form a 3-hydroxy-21,21-bis-(hydroxymethyl) steroid, the latter is reacted with a lower aliphatic ketone or aldehyde to form the corresponding ketonide, the latter is esterified in 3-position with an organic carboxylic acid having 1-18 carbon atoms and the latter subjected to acid hydrolysis to form a 3 - acyloxy - 21,21 - bis - (hydroxymethyl) pregnane.  The 3 - hydroxy - 21,21 - bis - (carboalkoxy) pregnane is obtained by condensing a 3a - or 3b  - hydroxy - 17 - formyl - 5b  or 5a  - pregnane with (a) a lower alkyl cyanoacetate to form a 21-cyano-21-carboalkoxy-pregn-20-ene, hydrogenating the latter to form a 21-cyano-21-carboalkoxy pregnane, treating the latter with alkali metal base to form a 21,21-dicarboxylic acid pregnane and esterifying the latter; (b) a dialkyl malonate to form a 21,21-bis -(carboalkoxy)-pregn-20-ene, and hydrogenating the latter to form a 21,21 - bis - (carboalkoxy) pregnane.  The 3-hydroxy-17b -formyl-androstane is obtained by reducing a 3a - or 3b - hydroxy or acyloxy-21-acyloxy-pregnan-20-one with alkali metal borohydride and saponifying to form a 3,20,21-trihydroxy pregnane, treating the latter with a per-acid in the presence of a lower alkanol to form the dialkyl ketal of a 3-hydroxy -17b -formyl androstane and hydrolysing the latter.