baber/WOPTO huggingface dataset:
Patent GB-434007-A (GB)
Title: Improvements in vulcanizer
IPC: B29D30/06
Filed: 1935-02-15
Abstract: 434,007. Vulcanizing tyres, tubes, &c. BRIDGE & CO., Ltd., D., Castleton Iron Works, Castleton, Lancashire.-(Assignees of Williams, T. H.; Akron, Ohio, U.S.A.) Feb. 15, 1935, No. 4858. Convention date, July 31, 1934. [Class 70] A watchcase vulcanizer has its movable section 13 operated by a link which is driven by a crank, a cam connected to the crank operating a bowl, which actuates means for locking and unlocking the movable section, the crank and cam being driven in unison to lower, lock, unlock, and raise the movable section. There are provided means for preventing accidental closing of section 13, and a limit switch for automatically terminating the opening and closing movements of section 13. The crank gear 38, Fig. 1, is rotated via toothed gears 43, 41, by a reversible electric motor 46. During the first part of rotation section 13 is not raised, but a cam groove 78 formed on one face of gear 38 forces outwardly a bowl 76 journalled on a slide 73, thereby transmitting motion, via rack and pinion mechanism in housing 69 and a compression-spring connection, to the ends of locking bars 50 hinged at 51 and having wedge blocks 54 which in the locking position engage oblique faces of lugs 56 on section13. Section 13 is thus unlocked. On further rotation of the gear 38 to the position shown in Fig. 6, section 13 is raised by two links 35 and a forked arm 24, between which there is a pin-and-slot connection to allow the section to remain stationary during unlocking. Crank pin 39 is then over-centre with relation to pin 34 and crank-shaft 40, so that on failure or breakage of the electric motor &c. gear 38 rotates clockwisely, due to the weight of section 13, and links 35 come to a stop against shaft 40, holding section 13 suspended. The abovementioned limit switch comprises two arms 88, 89 mounted on the shaft 40 and having offset portions which, in open and close positions of section 13, engage operating buttons 95 on switches 91, 92, mounted on a bracket 90 journalled on shaft 40. When the buttons are thus engaged, power is disconnected from the motor 46, magnetic brake 47 is applied thereto, and bracket 90 is tilted against spring action out of its normal position. This allows overrun of shaft 40 between the time switch 91 or 92 is operated and the time motor 46 stops. The hinge pin 23, which is square between its ends, is received in slots 25 in the arm 24, and adjusting screws 26 permit of moulds of different height being used. The arm may also be lifted off the pin by upward movement of the mould sections due to distension of a diaphragm beneath the lower section by fluid pressure. This diaphragm ensures uniform engagement of the mould sections. Adjusting screws 84 in ears 52a engage lugs on section 12 to retain the latter in a determined angular position. An angularly-adjustable stop 81, 82 prevents the lower mould section being lifted any considerable distance by adhesion.
Patent GB-589102-A (GB)
Title: Revolving heel for boots and shoes
IPC: A43B21/433
Filed: 1945-02-27
Abstract: 589,102. Revolving heels for footwear. COLLEDGE, W. B. Feb. 27, 1945, No. 4877. [Class 17 (iii)] A revolving heel for footwear comprises a casing 1 of relatively rigid material, such as metal or synthetic plastic material, within a peripheral rim 4 of which is retained an insert 5 of leather, rubber or other material. The rear face of the casing has a raised boss with a bore 3 for passage of an attachment screw, access to which is obtained by an aperture 6 in the insert 5. The casing 1 may be tapered and the insert in that case may be inserted in the cupped condition and then flattened, or the rim of the casing may be contracted by passage through a die, or by spinning or other means. The edge of the rim may have projecting teeth to grip the insert where the pad projects beyond the edge of the rim 4.
Patent GB-472531-A (GB)
Title: Manufacture of durable ferrous compounds
IPC: C07F15/02
Filed: 1936-02-18
Abstract: Aliphatic compounds containing the enolic grouping <FORM:0472531/IV/1> are converted into their ferrous compounds by treatment with iron in presence of water, or by interaction of an alkaline earth salt of the compound with a ferrous salt in aqueous solution, or by treatment of the compound or its alkali metal salt with a ferrous salt, the liberated acid being neutralized with say an alkali bicarbonate.  The products, either in solution or as the isolated salt, are useful therapeutically.  Examples are given of the preparation of the ferrous compounds of ascorbic acid, glucoreductone and dioxymaleic acid.  By addition of a little mineral or organic acid or of the aliphatic compound itself, the normally dark-coloured aqueous solutions are decolorized.  The ferrous compounds are isolated from their solutions either by evaporation under reduced pressure or by precipitation with a water-soluble organic solvent.
Patent GB-1170534-A (GB)
Title: Improvements relating to Control Apparatus for a Bonding Machine
IPC: B23K3/03
Filed: 1967-02-01
Abstract: 1,170,534. Soldering. TEXAS INSTRUMENTS Inc. 1 Feb., 1967 [1 Feb., 1966], No. 4915/67. Heading B3R. [Also in Divisions G1 and H2] Apparatus for controlling the energy applied in a bonding machine by monitoring the infrared radiation from the bonding area comprises an infra-red detector, means for transmitting infra-red radiation from the bonding area to the detector, reciprocating chopping means interposed between said detector and said transmitting means and control means responsive to the output of the detector to control the energy applied in the machine. A machine for soldering printing circuit boards, integrated cricuits or semi-conductor devices comprises spaced tungsten electrodes 3, 4, Fig. 1, carried by arms 2, 1 mounted in blocks 2a, 1a slidably mounted on columns 14, 13 with springs 15, 15a above and below the blocks and with the blocks resting on a slidable cross bar 16. A downward force is applied to the cross bar by a mechanism actuated manually or electrically or hydraulically and the electrodes are brought into contact with the parts to be soldered mounted on a platform 8. If a wire is to be soldered to a conducting area the area or the wire is coated with tin lead alloy, gold, nickel &c. A voltage is applied to the arms 1, 2 so that current passes through the electrodes in contact with the parts to be soldered and as the parts heat up infra red radiation emanating from the parts passes through a tube 7 into a housing 5 attached to the arm 1. In the housing over the tube 7 are vanes 22, 23, Fig. 4, having notches in their edges forming an aperture 26, the vanes being mounted on a tuning fork 33 and as the fork vibrates the vanes open and close the aperture so that infra-red radiation is directed intermittently to an infrared detector 30. The tuning fork is vibrated by solenoids 24, 25 one being supplied from an oscillator and the other supplying a feedback signal to the oscillator to maintain the oscillations. The detector 30, of lead sulphide or lead selenide, has leads 28, 29 which are connected to an amplifier which directs a signal to a maximum threshold detector, a Schmitt trigger circuit, which detects when the amplified signal is above a predetermined amount-when this occurs a signal is sent to the energy control circuit which turns off the energy supply.
Patent GB-1493047-A (GB)
Title: Fan for circulating grease-containing air
IPC: F24C15/00
Filed: 1975-02-05
Abstract: 1493047 Centrifugal fans BOSCH-SIEMANS HAUSGERATE GmbH 5 Feb 1975 [8 Feb 1974] 4954/75 Heading F1C A fan has surfaces of catalytically self-cleaning material. Hot air laden with grease and fat within an oven for cooking food is circulated by a fan comprising an impeller 10 driven by a motor 24 mounted outside the oven lining 2. The impeller 10, which is surrounded by the oven heating element 12, draws the air through a central hole 18 in a baffle plate 14 and discharges it through gaps above and below the baffle plate. The impeller 10 and baffle plate 14 are coated with a catalytically self-cleaning enamel.
Patent GB-693958-A (GB)
Title: Improvement in snap springs
IPC: B21D22/02
Filed: 1951-01-18
Abstract: 693,958. Snap-action springs. PIERCE FOUNDATION, J. B. Jan. 18, 1951 [Jan. 18, 1950], No. 4986/52. Divided out of 693,933, [Group XXII]. Class 108 (iii). A snap-action spring of resilient sheet material, is of dished configuration in one position of equilibrium, and its convex and concave surfaces respectively have permanent tensile and compressive stresses imparted to them substantially uniformly throughout, the calibration of the spring being a function of the ratio between the compression and tensile stresses. In the construction shown, the spring comprises a spoked disc 10 retained in the annular groove 15 of a mounting rim 14. The centre of the spring is held (with slight play) between a shoulder of an operating rod 16 and a nut 16a. The disc may be of laminated bi-metallic construction, Fig. 3 (not shown). The laminations may be of beryllium copper and steel. In operation, on upward force being applied to the rod 16 (or downward force to the rim 14), the spring snaps to a second position 10a in which it may be in stable or unstable equilibrium according to the permanent stresses existent in the spring. The permanent stresses may be modified by heat treatment and are formed initially by a process of pressing the spring between dies. This process forms the subject of Specification 693,933, [Group XXII]. The snap-action of the bimetallic form is initiated by a change in temperature. According to the properties of the spring, the return to a " cold " position, may be automatic on a return to the original temperature, or the spring may remain in the " hot " position until it is returned manually.
Patent GB-504966-A (GB)
Title: Improvements in or relating to circuits for the production of saw-tooth oscillationsof constant frequency and more especially for electrical musical instruments
IPC: G10H5/10
Filed: 1938-02-17
Abstract: 504,966. Valve generating circuits. TRAUTWEIN, F. Feb. 17, 1938, No. 5028. Convention date, Feb. 17, 1937. [Class 40 (v)] A relaxation oscillator is trigged when the condenser is charged to a predetermined voltage by an impulse supplied to the valve from the charging circuit. As shown in the figure, the condenser 12 is charged over resistance 13. When the voltage on the condenser equals that determined by tapping 15 current flows through transformer' 17 and a pulse is passed to valve 11 which allows current to flow. and the condenser to discharge. The valve may be a gas filled or a high vacuum valve and may be a diode or a triode. If a diode is used the secondary of transformer 17 is in the anode circuit of the valve. An amplifier may be placed in the circuit 15, 16. The rectifier 16 may be replaced by a high resistance or by a valve. The transformer 17 is wound to have a low resistance and the core is of finely divided iron and is premagnetized. The oscillator may be provided with filters to remove undesired harmonics and may be used as a synchronizing oscillator for an oscillator having an output of required wave form. The oscillator may be used in a musical instrument. The Specification as open to inspection under Sect. 91 states that transformer 17 may be replaced by a resistance-capacity coupling. A system of frequency division, Fig. 6 (Cancelled), is also described, the condenser 12 being charged over resistance 13 to a value determined by tapping 15 and discharged when the charge on condenser 26 has reached a predetermined value. The condenser 26 is charged by pulses received over rectifier 28 and the number of pulses required to charge 28, which number is the denominator for frequency division, is determined by the value of condenser 26. This subject-matter does not appear in the Specification as accepted.
Patent GB-992539-A (GB)
Title: Improvements in method and apparatus for casting thin cellular foam sheets
Inventor: WILLY JOHN
IPC: B29C44/28
Filed: 1964-02-06
Abstract: 992,539. Moulding foamed sheets; laminates. SPECIALTY CONVERTERS Inc. Feb. 6, 1964, No. 5122/64. Headings B5A and B5N. [Also in Division H2] Foamed sheets of e.g. polyurethane are formed by depositing the foaming mixture from a nozzle 14 on to a moving carrier belt 13, passing the mixture through a pair of metering rolls 15, 16 whilst applying a cover sheet 26, expanding the mixture between the belt and sheet by means of ovens 27, 28, 29, and finally stripping the foamed sheet from the belt over roll 31, on to which the cover sheet 26 is wound. The foamed sheet 30 is then transported over conveyer 32, to a final curing oven 36 through which it is conveyed as loops draped over cross-members 42 carried between carrier bands 40 (only one shown). The finally cured sheet is then wound up on to roll 44. The lower metering roll 16 (see Fig. 2) is journalled in vertically fixed bearings 50, 51 through which rotatable screw-threaded rods 152, 153 pass. The upper roll 15 is carried by members 62, 63 which are biased against the upper ends of rods 52, 53 by air cylinders 66, 67. The rods may be raised or lowered by rotating them by means of the bevel gears 54, 55, 56, 57 (shown in Fig. 2) thus adjusting the nip. Zero nip may be obtained by lowering the rods sufficiently or by removing them altogether, the foamed sheet then being metred by the pressure of the upper roller due to cylinders 66, 67. The drive members of the carrier belt, the cover sheet, the conveyer 32, the conveyer 40 and roll 44 are controlled individually or together by means of a Ward-Leonard control system as in Fig. 3 (not shown). The belt may comprise an upper layer of polytetrafluoroethylene on a substrate of fibreglass. The foamed resinmay be cast between a carpet material and a cover sheet, the cover sheet being subsequently removed to form a carpet with a foamed backing layer having a substantially non-porous skin.
Patent GB-669818-A (GB)
Title: Improvements in or relating to adjustable steering wheel shafts for motor vehicles
IPC: B62D1/185
Filed: 1948-02-20
Abstract: 669,818. Motor vehicle steering gear. BISHOP, R., and JOHNSTON, R. H. Feb. 21, 1949 [Feb. 20, 1948], No. 5161/48. Class 79 (v). An adjustable steering wheel shaft for a motor vehicle comprises a hollow shaft part adapted to receive another shaft part within it as a relatively close fit, the wall of the hollow part being formed with an aperture to receive a radially displaceable key, which normally extends at the inner end into a longitudinally extending key-way in the other shaft part and at the outer end externally of the wall, and a locking device mounted on the hollow part to engage the outwardly extending portion of the key and so formed that motion of the locking device in one direction will exert a wedging action tending to urge the key radially inwards of the bellow part to cause it to grip the base of the key-way in the other part. As shown in Fig. 2, a steering shaft part 1 is connected at one end to the steering box and at the other end is welded at 5 to a sleeve 4 which is carried by a bearing 13 in the steering column 2. The other shaft part 3, on which the steering wheel (not shown) is mounted, is a relatively close fit within the sleeve 4 and is provided with the keyway 11 and another key-way 9. The sleeve 4 is provided with apertures to receive the key 12 and another key 10 slidable in the key-ways 9, 11. Alternatively or additionally to the key 10 the sleeve 4 may be in splined engagement with the part 3. An hexagonal nut 15 or a ribbed or knurled cylinder (not shown) is fitted over the end of the sleeve 4 and is provided with an inner face to co-operate with a convex side of the key 12 urging teeth 12a thereon into or out of positive engagement with the base of the key-way 11 to permit axial adjustment of the shaft parts 1, 3. For this purpose the nut 15 may be formed with an eccentric bore or be concentrically bored and have a hard metal lining strip either thicker at one end than the other or supported at one end by a packing member between the bore and the strip, the major portion of the strip being unsupported between its two ends so as to be yieldable. In a modification, Fig. 6, a ribbed nut member 19 is in threaded engagement with the sleeve 4 and has a conical seating 23 bearing against an inclined face of a key 21 which is otherwise similar to the key 12. The seating 23 can be bored either concentrically or eccentrically.
Patent GB-1048001-A (GB)
Title: Improvements relating to contact lenses
IPC: G02C7/04
Filed: 1962-02-10
Abstract: 1,048,001. Contact lenses. C.M.TAYLOR. May 10, 1963 [Feb. 10, 1962], No. 5190/62. Heading G2J. A haptic or corneal contact lens is provided with a removable secondary lens of such focal length that a composite lens is formed of the focal length required for short distance vision. As shown, for a haptic lens 1 (Fig. 2) the secondary lens 6 may be of slightly greater curvature than the main lens to allow movement of the secondary lens and in the case of the corneal lens (Fig. 5) the curvatures are the same and the corneal lens may be provided with an outwardly curved peripheral edge 7 to retain the secondary lens.
Patent GB-100730-A (GB)
Title: Improvements in Gas Producers.
Inventor: BRICKNELL WILLIAM HENRY
IPC: C10J3/80
Filed: 1916-04-13
Abstract: 100.730. Bricknell, W. H., and Burt, A. June 22, 1915, [Convention date]. Generating by exhaust gases.-The Specification as open to inspection under Sect. 91 (3) (a) describes a vaporizer, Fig. 8 (cancelled), for supplying steam to a gas producer and comprising a chamber 31<1> traversed by an exhaust pipe 32<1> and provided with water inlet and overflow 37, 38 and a steam outlet 35. This subject-matter does not appear in the Specification as accepted.
Patent GB-692688-A (GB)
IPC: H01C1/082
Filed: 1952-03-03
Abstract: 692,688. Fluid-cooled resistors. WELWYN ELECTRICAL LABORATORIES. March 3, 1952 [March 17, 1951], No. 5452/52. Class 37. An arrangement of a resistor (e.g. a wirewound or film type resistor) with forced fluid cooling comprises fluid inlet and outlet at the same end and an external sleeve which surrounds the resistor and encloses a space divided by the resistor into two parts forming separate paths for the cooling fluid which may be air, water or insulating liquid. In Fig. 1 a glass or porcelain sleeve 11 surrounds and is spaced from a tubular resistor 10 so that fluid entering at 4 and departing at 3 cools both the outside and inside surfaces of the tubular resistor 10 as it follows successively a path defined by the annular space around the resistor and a path through the bore of the resistor 10. In Fig. 3 a rod or bar resistor 10<SP>1</SP> is mounted inside the sleeve 11 as a partition whereby two separate compartments are formed and both major surfaces of the resistor 10 are cooled as the fluid flows successively through the two compartments.
Patent GB-988162-A (GB)
Title: Improvements in or relating to a machine for driving tunnels, wells, ducts and the like
IPC: E21C35/18
Filed: 1963-02-11
Abstract: 988,162. Tunnelling machines. J. WOHLMEYER. Feb. 11, 1963 [Feb. 16, 1962], No. 5521/63. Heading E1F. Driven disc cutter units are so mounted in the rotating head 5 of a tunnelling machine that the discs 10, 11, are disposed on at least two concentric orbits k1, k2. Preferably the cutter units of the discs 11 are mounted in frames 16 pivoted at 17 to the head 5 and are adjustable with respect thereto by screws 18 or piston cylinder units so that the radius of the orbit k2 may be varied as required. Forwardly projecting breaker points 22 may be provided on the cutter discs whilst protection plates 21 are provided about that part of the periphery of each disc not engaging with rock. Each unit comprises a cutter disc, a gear train including two or three series connected coaxial epicyclic gear trains housed in a tubular housing 12 and driven by a motor 14. Each cutter pick of a cutter disc is cooled by coolant being passed through passages formed by channels 54 in the wall of a shank-receiving aperture in the disc and the pick shank which is preferably formed of a good heat-conducting material. The coolant is supplied to the picks of the disc of each unit through a closed circuit by a pump driven by the motor 14 of the unit. The circuit passes through an oil cooler associated with the head so that heat can be removed from the coolant by oil which is removed clear of the head to a more satisfactory zone for dissipation. Provided in bores 66 in the pick heads are detonator-fired slow burning cartridges 67, the associated one of which on breaking or wearing of the pick tip occurring is fired to give off gases which can be sensed by an operator or which can in other ways give warning of the need for and shut down of the machine to allow replacement of the tip.
Patent GB-750283-A (GB)
Title: Apparatus for trimming fruit and the like
IPC: A23N4/20
Filed: 1954-02-25
Abstract: 750,283. Pineapples, &c., topping and tailing. FOOD MACHINERY & CHEMICAL CORPORATION. Feb. 25, 1954 [June 9, 1953], No. 5556/54. Class 28(2). [Also in Group I] Pineapples &c., are each thrust by hand into yielding pockets 31 of endless chain conveyer 11 which moves them broadside on to spaced disc cutters 77, 76 which cut off the tops, including the leaves, and the bottoms, the cutter 76 being automatically adjusted and locked axially in accordance with the length of the pineapple by the pineapple base end engaging a feeler 103. A long pineapple thus pushes out the feeler 103 whereby the attached spring controlled parallel links 88 carrying the cutter 76 are moved to adjust axially the cutter. The topping cutter 77 is held on parallel links locked in adjusted position. The feeler 103 can be set in relation to the plane of .the cutter 76 to regulate the thickness of the end slice cut off. A strong spring 114 coupling the feeler to the parallel motion links 88 prevents undue movement of the cutter 76 after the cut has commenced. Further safeguards in this respect are provided by a brake block 126 once the cutting has begun. Each pocket 31 .comprises an adjustable base and side 36 and a cam opened and spring pressed gripping finger 41 and contains resilient arms 67 to grip the neck of the pineapple with the leaves projecting beyond the arms 67. After both ends are cut off the finger 41 is opened to release the pineapple. Specification 650,653 is referred to.
Patent GB-404480-A (GB)
Title: Improvements in relief valves for pumps for automobile vehicles and aircraft
IPC: F04B49/24
Filed: 1933-02-23
Abstract: 404,480. Regulating delivery of pumps. SOC. D'EXPLOITATION DES BREVETS L. SIMON (AMORTISSEURS SANCHOK), 9, Rue Boissy d'Anglas, Paris. Feb. 23, 1933, No. 5590. Convention date, Nov. 28, 1932. [Class 102 (i ).] A by - pass valve, particularly for use in automobile vehicles or aircraft with a pump which is controlled by the engine in accordance with the vehicle speed and propels fluid acting on the braking elements of friction shock-absorbers, is constructed so as to produce steps in the pressure curve. In Fig. 1, the spring-pressed stopper 2 which coacts with the stationary inlet tube 1, has a complex surface whereof the parts ab, cd, and ef, correspond to flows increasing with the speed of the vehicle, while the more inclined parts bc, de, correspond to a substantially constant pressure during increase of speed. In Fig. 2 (not shown) the stopper is external and the complex surface is formed on the stationary inlet tube. In Fig. 3, the stationary inlet tube is formed with a simple inclined surface S and the external stopper is acted on by a series of springs 14<1>-14<3> which box successively. Specification 394,234 is referred to.