baber/WOPTO huggingface dataset:
Patent GB-983098-A (GB)
Title: Improvements in or relating to balancers for rotating shafts
IPC: F16F15/36
Filed: 1962-01-26
Abstract: 983,098. Balancing shafts. C. B. ROGERS. Jan. 26, 1962 [Sept. 19, 1961], No. 3082/62. Heading F2U. A balancer for a rotating shaft 6 comprises a casing 8 mounted on the shaft and having a rim 13 concentric with the shaft axis, a ball 31 is in rolling contact with the rim and means are provided for blocking rolling movement of the ball on certain portions of the rim. The blocking means may comprise a number of fingers 24 moving in radial slots 21 under the control of a ring 27 loaded by a spring or rubber 0-ring 29. A number of balls may be used and the fingers controlled by the rubber ring 29 only. In an embodiment for attachment to the end of an engine crank-shaft the fingers may be L-shaped and constrained inwards by the rubber ring, the metal ring 27 being radially outwards of the rubber ring to move the fingers, as a whole, eccentrically.
Patent GB-576321-A (GB)
Title: An air inlet control filter valve for barrels
IPC: B67D3/04
Filed: 1944-02-18
Abstract: 576,321. Filter valves for barrels. SMITH, C. D., OTTON, D. H., and BOTTON, A. W. Feb. 18, 1944, No. 3103. [Class 21] A vent valve for beer &c. barrels consists of a cup a containing asbestos cotton wool or other filter material d and terminating in a boss by which it is screwed to a peg b fitting the vent hole and carrying a tap-controlled overflow nipple l. The upper end of cup a carries a flanged nut e providing a seating for a ported bush f, port f<1> being controlled by a valve g and two ports f<2> being open, a chamber connecting the ports being constituted by a cap j.
Patent GB-155722-A (GB)
Title: Improved wheel-barrow
IPC: B62B1/18
Filed: 1920-02-21
Abstract: 155,722. AndrÚ, A. Feb. 2, 1920. No Patent granted (Sealing fee not paid). Wheelbarrows.-To obtain a better distribution of the load, the two front uprights d of a wheelbarrow are extended below the body b and the axle e carrying the wheel f is mounted on their lower extremities.
Patent GB-660892-A (GB)
Title: Method of constructing horticultural shelters, greenhouses and other structures fromprefabricated units, and clamps for use therefor
Inventor: SPELMAN DONALD CHARLES
IPC: A01G9/14
Filed: 1949-02-05
Abstract: 660,892. Plant covers, greenhouses and buildings portable in sections. ROBINSON CLOCHE CO., Ltd. Feb. 6, 1950 [Feb. 5, 1949], No. 3251/49. Class 20(i) [Also in Group XXV] Dutch lights or other panels are assembled tc form plant covers greenhouses or other structures with the aid of clamps comprising a pair of V-shaped members drawn together by means of a screw or bolt 22. The members may be of metal or wood. They may be cast with stiffening ribs or may be made of sheet metal strips with stamped tongues 29 to improve their grip on the panels and stiffening flanges formed by bending up the edges of the strips. The clamps on adjacent pairs of panels may be connected together by links between the respective bolts 22. Panels in the same plane may be connected together by similar clamps of which the arms are in line.
Patent GB-772312-A (GB)
Title: Improvements relating to methods of manufacturing camouflage material
IPC: D06N7/04
Filed: 1955-02-03
Abstract: 772,312. Camouflage material. EKMAN, C. D., and BRUNDIN, B., [trading as EKMAN & BRUNDIN]. Feb. 3, 1955 [Feb. 3, 1954], No. 3254/55. Class 140. Camouflage material is made by spraying on to an open mesh net material of natural or synthetic fibre yarn, synthetic monofilaments, e.g. of polyamide, or steel wire, a fibre-forming solution of a synthetic resin, e.g. polyvinyl acetate or a polyvinyl-chlorinated rubber product, so as to form a fibre layer undercoat and then coating, by painting or spraying with a film forming solution of a synthetic resin, e.g. a synthetic rubber. Both sides of the net material are preferably coated. The mesh width may be 4-8 cm. The knots of monofil net material may be treated with adhesive. A perforated product may be produced by spraying alternately with fibre- or film-forming resin solution and gas under pressure. - Alternatively a flame may be passed over the material after coating with the film-forming resin. Camouflage dyes or pigments, preferably a synthetic resin dye, may be applied in admixture with the film-forming solution or may be applied subsequently. One side may be painted with conventional colours and the other side painted white.
Patent GB-178234-A (GB)
Title: Improvements in and relating to electric lighting systems for vehicles
IPC: F21S8/10
Filed: 1921-01-26
Abstract: 178,234. Gramlich, S. V. Jan. 26, 1921. Vehicle lamps.-The head-lights of a vehicle are provided with several electric lamps arranged in the form of an arc in a horizontal plane and the lamps are controlled selectively by means of a commutator switch in accordance with the movements of the steering-wheel or independently thereof. Each head-light B, Fig. 5, comprises a casing 1 provided with a frame 4 upon which are mounted lamps 5 - - 9.
Patent GB-469746-A (GB)
Title: Improvements in or relating to leaf springs
IPC: B60G11/107
Filed: 1936-02-03
Abstract: 469,746. Laminated springs. YATES, D. R. M. Feb. 3, 1936, No. 3281. [Class 108 (iii)] An end portion of a leafspring 6 for use in rail and road vehicles is adapted to bear against the lower race 5 of a roller bearing, the upper race 4 being secured to the sole bar 1 or equivalent of the vehicle frame and the rollers being confined in a cage 8 which during flexing of the spring slides with the rollers on the lower race. Flanges 9 on either of the races 4, 5 limit the movement. Dislocation of the spring in the event of shock &c. is prevented by a pin 10.
Patent GB-183497-A (GB)
Title: Improvements in and relating to the preparation of vulcanised fibre
IPC: D21H17/64
Filed: 1921-01-27
Abstract: 183,497. Sutcliffe, J. A. Jan. 27, 1921. Vulcanized fibre prepared by the chloride of zinc process is treated after vulcanization with a strong solution of ammonia to render it non- hygroscopic.
Patent GB-307338-A (GB)
Title: Improvements relating to selectors for automatic telephone exchange systems
IPC: H04Q1/04
Filed: 1929-01-31
Abstract: 307,338. Merk, F. Jan. 31. 1929. [A Specification was laid open to inspection under Sect, 91 of the Acts, March 6, 1929]. Automatic exchange selectors.-The banks of a number of " panel " type selectors comprising a number of " bank strips " are assembled with the wiper carriage in an independent frame which is subsequently secured to the main framework in the exchange. The independent frame may also carry the driving mechanism. As shown, 5 " bank strips " 8 are connected together and to a supporting member 1 by bars 10. Guide strips 13 for the wiper carriages may be secured to the bars 10 and to intermediate members 17 which are not secured to the " bank strips." Alternatively the wiper carriages may carry guide strips which engage with slotted members 16 on the " bank strips." The bars 10 may be replaced by bolts passing through the '' bank strips."
Patent GB-720672-A (GB)
Title: Improvements in pocket knives
IPC: B26B11/00
Filed: 1953-02-06
Abstract: 720,672. Advertising. SIMON, C. F., and STRATHMANN, W. Feb. 6, 1953, No. 3368/53. Class 3 (1). [Also in Group XIV] A pocket knife comprises two frame plates 3, 4 secured together in spaced parallel position, one of the plates being apertured, a pivot 7 between the plates at one end, a tanged knife blade 5 mounted on the pivot 7 for movement between open and closed positions, an opaque but windowed covering disposed externally of the apertured frame plate and defining with it a longitudinal recess 9 into which windows 11, 12 open, a movable plate 13 bearing representations of advertising matter arranged in the recess and longitudinally slidable therein so that in its limit positions different portions of the advertising matter become visible in the windows, and connecting linkages 14, 15 connected pivotally to the tang of the knife blade and to the slidable plate 13 whereby movement of the blade between its open and closed positions causes movement of the slidable plate to display different portions of the advertising matter in the windows. In the construction shown, the covering consists of a transparent plate 1 backed by an apertured opaque plate 10, alternately an apertured opaque plate is used. The links 14, 15 are connected together and are contained in an aperture in the frame plate 3 when the knife has the normal leaf spring 6 for retaining the blade open or closed, but for knives having a blade which is urged to open by a coil spring when a catch is released, the links are positioned immediately underneath the blade so that the coil spring for the blade can be connected to the link 14.
Patent GB-488381-A (GB)
Title: Improvements in the bleaching of montan wax
IPC: C10G73/00
Filed: 1937-02-04
Abstract: Montan wax is bleached by treating first with hydrogen peroxide and then with chromic acid.  Treatment with 5 per cent of peroxide as a 1-30 per cent solution at 90-120 DEG  C. for 1-6 hrs., after adding acid, neutral, or alkaline aqueous or organic liquids, is suitable. The chromic acid treatment is usually as described in Specification 302,626, [Class 91], chromic anhydride, or sodium, potassium, or ammonium bichromate and sulphuric acid being used. In an example, 1000 kg. of crude montan wax is fused, 4,500 kg. of 40 per cent sulphuric acid mixed in, and 500 litres of 30 per cent peroxide added little by little and the whole stirred for 3 hrs. at 105 DEG  C. 1000 Kg. of chromic anhydride is slowly added and the whole stirred until the anhydride is used up; the wax is washed with sulphuric acid and then with water.
Patent GB-1129104-A (GB)
Title: Method for knitting gloves
IPC: D04B1/28
Filed: 1966-01-26
Abstract: 1,129,104. Knitting. S. UCHIDA. 26 Jan., 1966 [28 May, 1965], No. 3419/66. Heading D1K. The little finger, middle finger and thumb of a .glove are knitted simultaneously on the needles of a parallel bed machine and on completion of these fingers and thumb the other two fingers are knitted simultaneously. Following the knitting of the fingers and thumb the .palm, back and wrist portions are knitted to complete the glove. Alternatively the index finger and ring finger may be knitted simultaneously first followed by the simultaneous knitting of the other fingers and thumb.
Patent GB-662348-A (GB)
Title: Improvements relating to pipe couplings and sealing rings therefor
IPC: F16L19/10
Filed: 1949-02-08
Abstract: 662,348. Making packing rings. MATTHEWS, E. F. (Wurzburger, P. D.). Feb. 8, 1949, No. 3468/49. Class 83 (iv). [Also in Groups XXVI and XXVIII] Corrugating.-A sealing-ring for pipe joints (see Groups XXVI and XXVIII), respectively, is made by confining the ends of a cylindrical ring R in a die A, B whilst leaving the intermediate portion of the ring unconfined on the outside, and shortening the ring to cause the unconfined portion to buckle outwardly. The dies A, B have cavities 13, 16 and recesses 14, 17, respectively, to shape the ring, and the die B has a spring-actuated plunger 18 to support it. Burrs on the ring are removed by the dies.
Patent GB-1483852-A (GB)
Title: Electric switches
IPC: B60J5/00
Filed: 1975-01-28
Abstract: 1483852 Retractive switches SINGER CO 28 Jan 1975 [11 Feb 1974] 3556/75 Heading H1N An electric switch comprises spaced terminals 12, 14, 16 a U-shaped resilient blade 20 with the free end 26 of one leg 22 pivoted on one terminal 14 and a pivotable actuator 32 engaging the other leg 24 at a point offset from the line connecting the pivot axes of the actuator 32 and blade 20 so that when the actuator 32 is moved in one direction the blade 20 is moved into or out of engagement with another terminal 12, 16. After the free end 30 of the blade 20 has contacted a terminal 12 and the blade 29 has disengaged from a terminal 16, the actuator 32 engages an upstanding tab 56 on the blade 20 to cause the blade 20 to wipe across the terminal 12 on further movement of the actuator 32. The actuator 32 is returned to a neutral position by a leaf spring 42. The blade 20 may also slide on the terminals 14, 16 when the actuator 32 is moved in the opposite direction by providing an inclined tab 58 on the blade 20 in the path of the actuator 32. The switch actuator 32 may control two oppositely disposed blades 20 (Fig. 4, not shown) separated in the switch housing 10 by a partition 18, and may be used to control a motor for raising and lowering a window.
Patent GB-835587-A (GB)
Title: Improved continuous polymerization process
IPC: C08F10/00
Filed: 1957-02-01
Abstract: In a continuous polymerization process employing a two-component catalyst the polymerization is carried out in two or more stages in separate vessels and after the first stage only one of the catalyst components is added afresh together with further monomer.ALSO:Olefines are polymerized in a continuous process wherein the olefines and inert liquid diluent are introduced to a first polymerization zone together with a polymerization catalyst obtained by mixing a reducing aluminium compound with a reducible metal compound in an inert liquid diluent, a portion of the resultant polymerization mixture is withdrawn continuously and passed to at least one further polymerization zone to which additional olefines and reducing metal compounds are also continuously introduced and a portion of the resultant polymerization mixture is continuously withdrawn from the further polymerization zone and passed to a separation zone for recovery of the polymer.  The polymerization mixture is maintained in both the first and further polymerization zones at 100 DEG  to 200 DEG  F. and at 1-20 atmospheres, the average residence time in the first zone being 0.5-4 hours and in the further reaction zones, 0.5-2 hours.  The olefin is preferably purified from catalyst poisons and may be ethylene, propylene or butylene and these may be copolymerized with one another or with other low molecular weight olefins or diolefines.  The reducing aluminium compound is an aluminium hydride or an organo-aluminium compound, e.g. aluminium trimethyl, triethyl, triisopropyl, triphenyl, diethyl bromide, diethyl chloride, diphenyl bromide or diphenyl chloride, ethyl aluminium dihydride, diethyl aluminium hydride or ethoxy aluminium diethyl.  The reducible metal compound is of a metal of the A sub-groups of groups 4, 5 or 6 of group 8 of the Periodic Table, e.g. titanium, zirconium, thorium, uranium or chromium and may be a chloride e.g. titanium tetrachloride, bromide, oxychloride, complex fluoride, oxide, hydroxide, alcoholates, acetates, benzoates or acetyl acetonates.  The inert liquid diluent is preferably an hydrocarbon or halogenated hydrocarbon such as pentane, hexane, heptane, octane, nonane, decane, benzene, toluene, chlorobenzene or light petroleum.  Many details of the catalyst preparation, e.g. temperature and residence time, and of the polymerization, e.g. concentration of the various components, and other conditions are given.  The polymer produced may be washed with butyl alcohol or acetone to remove metal contaminant. Polyethylene prepared by this process has a low ash content and may be used as a film-forming material, lubricant additive, or in the formation of moulded or injected plastics.
Patent GB-275093-A (GB)
Title: Improvements in devices for indicating the consumption of petrol by vehicles with respect to distance travelled
IPC: G01F9/00
Filed: 1927-02-08
Abstract: 275,093. Cornwall, C. A. K., and Tripp, G. M. Feb. 8, 1927. Measuring consumption of fuel with respect to mileage of vehicles. -Relates to apparatus for indicating the consumption in miles per gallon of fuel by a motor vehicle &c A shaft 26 driven by a shaft 29 connected to a running part of the vehicle, is coupled by clutch plates 31, 33 to a shaft 32 during the period taken for a measuring chamber 1 to empty. The shaft 32 is geared to an indicating drum 39 which is read against a pointer 41 The measuring chamber 1 contains a float 11 which, when it reaches its bottom position, moves a rod 10 connected with a lever 13. This lever opens a supply valve 7, and closes a valve 16 in a port leading to a reservoir 4 connected with the carburettor. An extension of the rod closes a switch 19 in a circuit controlling the clutch 31. The chamber 1 then fills, and when the float reaches its top position, the rod 10 is moved to close the valve 7, open the valve 16, and open the switch 19. While the chamber 1 is filling and the switch 19 is closed, a solenoid 25 in the circuit keeps the clutch 31, 33 open and the plate 33 is locked by a brake 56 actuated by an electromagnet 54. While the chamber is emptying, and the switch 19 is open, the clutch is closed by a fork 46 acted on by a spring 50, and the indicating drum is driven. A dash-pot 64 is provided, and when the brake 56 is released, a spring 35 returns the drum 39 until a pin 57 contacts with a stop 58. A link 51 actuates a meter 52 which indicates the quantity of fuel left in the main tank. A shutter connected to a link 44 closes the sight opening of the drum 39 while the drum is being set. The circuit is preferably taken off the ignition battery of the vehicle, and is controlled by the ignition switch 61. The clutch plate 31 may be operated by a mechanical connection with the rod 10.
Patent GB-114014-A (GB)
Title: Improvements in Carriers for Motor Cycles.
Inventor: DOUGLAS WILLIAM
IPC: B62K25/28
Filed: 1917-03-12
Abstract: 114,014. Douglas. W., (trading as Douglas Bros.) March 12, 1917. Luggage-carriers. - Motor-cycles with rear spring suspensions, as claimed in Specifications 110,067, 110,080, and 110,272, [all in Class 136 (iii), Velocipedes &c., Kinds &c. of], are fitted with a carrier platform F supported on struts G from the pivot C of the rear-wheel frame and connected at the front I to the main frame A near the seat pillar.
Patent GB-664045-A (GB)
Title: Improvements in and relating to the decoration of pottery articles
Inventor: KEARNS JOHN WILLIAM
IPC: B28B11/00
Filed: 1949-02-10
Abstract: 664,045. Transferring designs. BOULTON, Ltd., W. Jan. 31, 1950 [Feb. 10, 1949; Aug. 11, 1949], Nos. 3630/49 and 20863/49. Class 100 (ii). A method of rubbing transfer designs or prints on to pottery articles consists in placing an article in a flexible housing shaped to receive it and bringing it into contact with a flexible plunger to which a vibratory action is imparted. An article such as a cup is placed in a sponge rubber or like housing shaped to receive it and carried in a head 51 screwed on to a stud 50 carried on a support 49 on a cross-piece 48 connecting a pair of uprights 47. The housing is recessed to accommodate the cup handle. A sponge rubber or like plunger 20, which may be faced with felt or the like, is slightly eccentrically fitted on a boss 21 screwed on to a spindle 16. The plunger is continuously rotated by an electric motor 11 to produce a vibratory motion. A second electric motor 30 raises and lowers the head 51 through a V-belt 33, shaft 35, worm wheel 38, shaft 39, cam 41, lever 42 pivoted at 43, and uprights 47. When the head is raised, the plunger fits into the cup, and its movement causes a vibratory rubbing action on the cup. The flexibility of the plunger takes up all or most of the lateral movement so that it does not move or only just moves out of contact with any part of the article during the operation. When the head is lowered, a lever 60 on the shaft 39 acts on a switch 61 to stop the motor, to allow time for changing the articles. The motor is re-started by a switch 62 operated by a treadle 63. In the case of flat ware such as plates, the housing and plunger are of plate shape, and the pressure face of the plunger is not parallel to the face of the plate so that a similar rolling effect is produced. The frequency of vibration may be 700 or-800 strokes per minute, and the amplitude of stroke about ¥ of an inch for a wide shallow cup. The frequency may require to be altered according to the shape of article or the nature of the design, and for the same reasons the degree of resilience of the plunger and housing may require alteration. Reference has been directed by the Comptroller to Specification, 642,162.
Patent GB-674874-A (GB)
Title: Improvements in electromagnetic devices
IPC: H03L7/26
Filed: 1949-02-10
Abstract: 674,874. Magnetic amplifiers. PHILIPS ELECTRICAL, Ltd. Feb. 10, 1949 [Feb. 13, 1948; Oct. 16, 1948], Nos. 3693/49 and 3694/49. Class 40 (iv). [Also in Groups XXXV, XL(b) and XL (c)] A signal is amplified by amplitude (or phase) modulating with it a carrier oscillation which produces after detection the amplified signal in a circuit in which the modulator is an inductance 1 as described with reference to Fig. 1. This has a ferromagnetic core 2 (preferably of ferrite with high permeability and resistance) to which is applied in a direction at right angles to a component of the A.C. field H, a polarizing magnetic field Ho the value of which is constant or varies slowly relative to H and is of an intensity such that the electrons to'which the magnetic properties are due precess about the polarizing field vector with substantially the frequency of the A.C. field. The polarizing field H is produced in a magnetic circuit 6 by a current in winding 5. When coil 1 forms part of a tuned circuit, curve #1f of Fig. 17 shows the relationship between field strength and the amount of detuning suffered by the circuit from the resonant frequency it has when the field value is fr such that the electrons precess in synchronism. Curve #2f shows the losses measured as the half-value width of the tuned circuit characteristic. Amplitude and phase modulation may be obtained by operating on a steeply sloping part of curve #2f whereby the attenuation suffered by the wave as it passes through the core is varied (see Group XL (c)). The invention may take the form not only of a wound inductance but also of a Lecher system, a wave-guide, a coaxial cable, or a cavity resonator.
Patent GB-560745-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04C2/063
Filed: 1943-03-08
Abstract: 560,745. Rotary pumps. SMITH'S JACKING SYSTEMS, Ltd., and SESSIONS, D. W. March 8, 1943, No. 3715. [Class 110 (ii)] [Also in Group XXII] In a geared vane type of pump an antifriction bearing metal such as white metal, lead-bronze or the like, is applied as a cast-on lining to the casing bore and to other internal parts of the pump. The metal may be applied by pressure die casting which includes fitting the housing with a core, tinning the housing, heating the parts and injecting the metal under pressure. The thickness of the lining may be about .012 to .016 inches. The inlet and outlet ports may also be lined. The pump body may be of mild steel. In Fig. 1 a driving spindle 12 has a rotor 13 having three radial slots containing rollers 17 on pins 20 and extensions 23 which carry arcuate-shaped impellers 30 around an annular working chamber. Inlet and outlet bores 33, 34 are provided. The lining metal is shown at 40. Specifications 352,268, 408,399 and 416,803 are referred to.
Patent GB-342148-A (GB)
Title: Improved means for the electric operation of railway points or switches
IPC: B61L5/06
Filed: 1930-02-04
Abstract: 342,148. Railway points ; electromagnets. CHEATHAM ELECTRIC SWITCHING DEVICE CO., 4780, Crittenden Drive, Louisville, Kentucky, U.S.A. Feb. 4, 1930, No. 3731. Convention date, Feb. 4, 1929. [Class 104 (i).] The magnetic plunger 4 of a double solenoid used for operating railway points in either direction is connected to a link 11 and yoke 10 through an elastic cushion 12. The cushion is carried by the plunger and consists of rubber, a spring, or fluid. The cushion minimizes shock and allows the link 11 to swing slightly.