baber/WOPTO huggingface dataset:
Patent GB-532874-A (GB)
Title: Sanding wheel
IPC: B24D9/04
Filed: 1939-07-20
Abstract: 532,874. Sand-papering wheels. TRIGGS, W. W. (Pearson Sanding Machine Co.). July 20, 1939, No. 21134. [Class 60] A sand-papering wheel comprises a body 7 having a flange 11 which co-operates with a retaining section 6 in gripping a radially grooved resilient ring 8 on which the sand-paper strip 16 is mounted. The flange is recessed to receive a number of balls 12 on rigid rods 14 which extend through aligned grooves in the ring 8 and in the section 6. Balls 15 on the other ends of the rods 14 are engaged by a cam surface 24 on a bell-shaped member 23 which is moved axially by a nut 22 to actuate the rods 14 so as to tension the paper. The balls 12 are retained in their recesses by a ring 19.
Patent GB-745136-A (GB)
Title: Improvements in and relating to washing machines
Inventor: BARNISH PHILIP
IPC: D06F37/24
Filed: 1952-08-22
Abstract: 745,136. Washing-machines. ENGLISH ELECTRIC CO., Ltd. Aug. 14, 1953 [Aug. 22, 1952], No. 21142/52. Class 138 (2). [Also in Group XIII] In a washing-machine having a unitary assembly comprising a receptacle 1 adapted for centrifugal spinning about a substantially vertical axis, means for spinning the receptacle, and such other components as may be necessary for the washing operation, the component parts of the unitary assembly are so disposed that the radius of gyration of the assembly about a horizontal axis through its centre of gravity is substantially equal to the geometric mean of the distance between the centre of gravity and a horizontal plane defined by points in the assembly from which it is resiliently supported and the distance between the centre of gravity and a horizontal plane coincident with that in which an out-of-balance mass effectively lies during centrifuging, the centre of gravity lying between the two horizontal planes. Under these conditions the unitary assembly will gyrate, during centrifuging, about a point in the plane of support thereby reducing the horizontal vibration transmitted to the frame or casing of the machine. The invention is applied to a machine of the type described in Specification 745,133, liquid extracted from a tub 7 through a hose 9 being returned by a pump 10 through a hose 13 and nozzle 14. The pump 10, a motor 15 for driving it, the tub 7, receptacle 1, a bearing 2 and a motor (not shown) for centrifugally spinning the receptacle 1 are all mounted on a frame 3 which is suspended by three vertical tension springs 5 attached to inverted U-shaped supports 4 carried by the casing frame 16. The arrangement may be such that during washing, the additional weight of the liquid and clothes causes the frame 3 to rest on rubber snubbers 17. After washing, the liquid is discharged by means of the pump 10, a changeover valve 11 and discharge hose 12. The spinning is then commenced and the unit is preferably still resting on the snubbers 17 when passing through the lower critical speed. A rubber band 18 on the upper rim of the tub 7 limits excessive vibration by contact with part of the casing 19. Specification 745,141 also is referred to.
Patent GB-624508-A (GB)
Title: Improvements in or relating to electric switches of the tumbler or key type
IPC: H01H21/02
Filed: 1946-07-15
Abstract: 624,508. Tumbler switches; indicators. O'SHEI, W. E. July 15, 1946, Nos. 21198, 26683, 26684, 28347 and 33216. [Class 38(v)] A bulb 23 mounted in the translucent handle of a vehicle traffic indicator switch is illuminated when the handle is moved to either of its two operative positions. The bulb is mounted in an insulating sleeve 24 of polythene inserted in a metal tube 30 screwed to a conducting lever arm 4 pivoted at 3. An insulated conductor 21 situated in a bore of the lever arm, contacts at one end an eyelet 26 to which is soldered a lead-in wire 28 of the bulb; the other end of the conductor contacts a conducting washer 20 pressed by a ball 9 and spring 10 located in an insulated recess 7 of the lever arm. The other lead-in wire 27 of the bulb is pinched between the sleeve 24 and the tube 30 with which it makes contact so as to be earthed to a die-cast cover 1 riveted to the insulating base 11. Contacts 14, 14<SP>1</SP> are riveted to the base, together with a terminal 17 held by a rivet which also secures a. leaf-spring 16 and a recessed insulating member 19 partly surrounded by a metal member 18. An open metal tube 31 having a slidable cap 32 of translucent plastic material is attached to the tube 30 by spinning over the edge of the latter, thereby completing enclosure of the bulb. When the lever arm is moved from its neutral position, the ball 9 bends the leaf-spring into contact with one of the contacts 14, 14<SP>1</SP>, and also closes a circuit through the bulb via the metal member 18 and the ball. If the bulb burns out, the complete handle is unscrewed and replaced, the translucent cap being used again. In Fig. 4 (not shown), a single metal tube encloses the bulb and is flanged over a metal end piece screwed on the lever arm 4. In Fig. 5 (not shown), the bulb has a cap screwing into a metal socket which 'is screwed to the lever arm, and an insulating knob which may be of translucent material, has an internal thread which screws over the socket and encloses the bulb.
Patent GB-442580-A (GB)
Title: Improvements in or relating to boiler furnaces and stoves
IPC: F24H1/28
Filed: 1934-08-10
Abstract: 442,580. Regulating combustion in furnaces. SCOTT, C. L., Leicester Arms Hotel, Penshurst, Kent. Aug. 10, 1934, No. 21203/35. Divided out of 442,547. [Class 51 (i)] In a solid fuel fired furnace for domestic water heating purposes and the like, a supply of primary air for combustion and of secondary cooling air at a point within the combustion chamber above the surface of the fire is controlled by thermostatic means sensitive to the water temperature, the main object being to keep the water temperature within safe limits at a time of " no demand," e.g. at night. In one form, Fig. 1, air entering the furnace at A is directed by a single thermostatically operated damper 9 into a duct 6 leading to below the grate and into a duct 10 leading to an outlet above the fire. The flue 12 is provided with a check-draught damper 13 such as is described in Specification 440,796, [Group X], The construction of and the means for controlling the grate are as described in Specification 442,547. The furnace shown in Fig. 2 is fed from a hopper (not shown),and the fuel passes over an inclined portion 3a to a grate 4. Air is admitted at A and passes, under the control of a valve 15 into a chamber 6a having an outlet 6 to the ashpit 5 and, under the control of a valve 16 into a chamber 10a having an outlet 10 to the space above the fire. Both valves 15 and 16 are mounted on a common thermostatically controlled spindle 9a. The valve 15 may be perforated to ensure a minimum primary air supply. In a modification, Fig. 7, both valves are loosely mounted on the spindle 9a, the valve 15 resting on a collar 15a and the valve 16 being supported by a spring 16a resting on a collar 16b. On a downward movement of the spindle, the spring keeps the valve 16 against its seating until the valve 15 has been closed. This arrangement ensures that the primary air supply has been reduced to a minimum before cooling air is admitted above the fire.
Patent GB-724368-A (GB)
Title: Improvements in or relating to multiple channel carrier current telephone cable
Inventor: PARCE LEON JEAN
IPC: H01B11/00
Filed: 1953-07-30
Abstract: 724,368. Cables. SOC. ANON. DE TELECOMMUNICATIONS. July 30, 1953 [July 30, 1952; Oct. 24, 1952], No. 21204/53. Class 36. In a high-frequency telephone cable including multiple cores such as balanced pairs or quads, the effective dielectric constant of the insulation of the cores forming the inner layers of the cable is less than that of the insulation of the cores forming the outer layers of the cable in order to equalize the high-frequency transmission characteristics of the cores near the cable sheath with those of the cores near the cable centre, the insulation of each of the conductors of the outer cores including a helically applied yarn of given diameter, and the insulation of at least some of the conductors 1 of the inner cores including two yarns 21, 22, twisted together and helically applied, each of the twisted yarns having a diameter equal to half the given diameter. Insulating tape 3 may be applied about the yarn-covered conductors, that used for the conductors of the outer cores being from one to one-and-a-half times as thick as that used for the inner cores. Where the cores consist of star quads, the quads in the inner layers may have shorter twist pitches than those in the outer layers, and the insulating cores of the inner quads may consist of two yarns twisted together and each having a diameter half that of a yarn used for the cores of the outer quads.
Patent GB-699714-A (GB)
Title: Improvements in or relating to burners
IPC: F23D5/12
Filed: 1951-09-07
Abstract: 699,714. Liquid-fuel burners. TOPLEY, C. W. Sept. 2, 1952 [Sept. 7, 1951], No. 21215/51. Class 75(i) The vaporizer bulb of a burner is a downwardly and outwardly flared bellshaped heat conducting member 1 open at its lower end and adapted to enclose a fuel vaporizing space 19 and is provided with at least one passage 17 extending through its interior and top 4 to pass a supply of secondary air to the centre of the burner flame. The skirt 5 of the bulb 1 is concave at the top 7 and convex at the bottom 8 and the shape is such that the skirt 5 is thinnest at the junction between the portions 7 and 8. The top 4 of the bulb 1 may be solid or hollow and flat or upwardly domed. The vaporizing chamber 19 is formed between the inner - wall of the bulb 1 and a raised portion 13 formed on the burner base. The portion 13 may be formed so as to restrict the vaporizing chamber at the thinnest part of the skirt 5 or to conform to the inner surface of the skirt 5. The burner may be circular or rectangular in shape and more than one passage 17, Fig. 6, (not shown), may be provided. The primary air holes 21 in the grill 3 decrease in size from the bottom to the top of the grill.
Patent GB-222113-A (GB)
Title: Improvements in or relating to electric heaters for fluids
IPC: F24H1/20
Filed: 1924-09-08
Abstract: 222,113. Stubbs, W., and Stubbs, H. Sept. 19, 1923, [Convention date]. Wire and ribbon resistances, threaded.-A heating element for a water heater comprises a bobbin wound longitudinally with a straight or spiral high resistance wire or ribbon, the disc portions 43, 44 of the bobbin being provided with lines or series of perforations, each lines or series having a slot passing through it. The discs are spaced from one another by a glass tube 50 and from end plates 46, 46<a> by metal washers 47, all the parts being secured together by a central bolt 48.
Patent GB-822668-A (GB)
Title: Catalytic process for making stable acroleinpentaerythritol condensates
IPC: C08G4/00
Filed: 1957-07-05
Abstract: Solid acrolein-pentaerythritol resins are prepared by reacting acrolein and pentaerythritol in a molar ratio of 1.3-1.9:1 in the presence of hydrochloric acid catalyst to form a liquid resin, removing substantially all the volatile matter, and then curing the liquid resin by heating in the presence of an acid catalyst other than hydrochloric acid.  The initial condensation is carried out at 60-100 DEG  C., the catalyst being 0.1-0.4% of the total weight of reactants.  By this means resins of either low viscosity (5000-25,000 cps. at 40 DEG  C.) or high viscosity (25,000-500,000 cps. at 40 DEG C.) may be produced, and they may be mixed to give final resins of different properties.  The volatile materials may be stripped off under reduced pressure, about half the initial quantity of the HCl catalyst being distilled off in the process.  The curing step takes place at 50-200 DEG  C. and curing catalysts specified are sulphuric acid, toluene-sulphonic acid, phosphoric acid, stannic chloride, titanium tetrachloride, boron trifluoride (diethyl etherate), and alkane sulphonic acid (particularly a commercial mixture which is primarily ethane-but which also contains methane-and propane-sulphonic acids).  In Example (5) a mixture of stannic chloride and toluene sulphonic acid is used.  Uses.-Display signs, ornaments, fixtures, dentures.  Sealing and potting electrical equipment.  Glass cloth laminates. Specification 720,594 is referred to.
Patent GB-740725-A (GB)
Title: Improvements in roller-weighting apparatus for textile machinery
Inventor: STAFFORD ALEC WALTER
IPC: D01H5/50
Filed: 1953-07-31
Abstract: 740,725. Roller weighting mechanism. T.M.M. (RESEARCH), Ltd. July 27, 1954 [July 31, 1953], No. 21279/53. Class 120 (2). A textile roller weighting apparatus of the type in which a saddle rests on the necks at the ends of the roller and a tension rod is connected to said saddle and to spring or like loading means, is provided with means for applying upward pressure to the tension rod by a member adapted to bear against the lower extremity of the tension rod, the contacting surfaces of the rod and the member being so shaped that when the tension rod has been relieved of the weighting pressure by the upward movement of the said member the resultant force between the surfaces will cause the tension rod and the saddle to swing laterally to a position clear of the rollers. As shown the invention is applied to a combing machine having front and back rollers 10, 11 and 12, 13, A saddle 18 rests on the necks of rollers 10 and 12 and has pivotally connected to it at 19 a tension rod 20. The other end of rod 20 is connected to a bell crank lever 22, 23 and is loaded by means of the rod 25 and spring 27. The weight-relieving means consists of a lever 30 freely pivoted on shaft 24 and having an arm 31 which extends beneath the lower extremity of the rod 20. The surface 201 of the rod 20 against which the arm 31 abuts when lever 30 is depressed is bevelled or inclined at an angle (Fig. 3) such that the tension rod and saddle assembly is automatically caused to topple laterally away from the rollers so as to leave the latter free for removal. The lever 30 may be retained in its depressed position by engagement with a notch 32 in a slotted guide plate 33.
Patent GB-682727-A (GB)
Title: Improvements in shuttered electric sockets
IPC: H01R13/453
Filed: 1950-08-29
Abstract: 682,727. Two-part couplings. CRABTREE & CO., Ltd., J. A., MORGAN, R. W., and COLEMAN, E. April 16, 1951 [Aug. 29, 1950], No. 21301/50. Class 38 (i). A shuttered socket embodying the features of Specification 666,098 comprises a cover c having an approximately triangular-shaped recess b slidably housing shutters a, a<SP>1</SP>, and closed by an insulating plate d. The shutters a, a<SP>1</SP> have projections k whereby they are urged by a spring g, encircling a fixed boss h, to cover rectangular live-pin receiving openings d<SP>1</SP> in the plate d. Insertion of the earth-pin into opening m moves the shutters lengthwise whereby they bridge the openings d<SP>1</SP>, further insertion causing the live pins to engage the chamfered shutter surfaces a<SP>3</SP> and move these ends of the shutters towards each other, the pins passing through the openings d<SP>1</SP>, m, to engage the socket contacts. Any attempt made to move the shutters by a foreign body inserted in the live-pin openings results in the shutters tilting and becoming locked within the openings d<SP>1</SP>, there being sufficient clearance between the shutters, cover c, and plate d, to permit this. Additional locking may be obtained by an abutment b<SP>2</SP> on the cover c which co-operates with ribs a<SP>5</SP> on the shutters, the ribs being disengaged from the abutment upon insertion of the earth pin. Specification 612,486 also is referred to.
Patent GB-375108-A (GB)
Title: Improvements in annealing-covers
IPC: C21D9/00
Filed: 1931-07-25
Abstract: 375,108. Annealing covers. SHELTON IRON, STEEL, & COAL CO., Ltd. and SIDEBOTTOM, J., Stoke-on-Trent. July 25, 1931, No. 21315. [Class 72.] An annealing cover is formed of members 1 of flat channel section which are bent into the form of arches, the flanges 2 being riveted or welded together. The flat end is formed of flat channel members 3 riveted or welded together at 4. The roof formed by the arched members 1 is stiffened by a gusset plate 5 and the cover is stiffened further by curved angle members 7 and a marginal angle frame 6. The members 1 may be bent to form a flat roof. The frame 6 may be replaced by an inverted single frame, the flanges being cut away so that the frame may be arranged inside the cover.
Patent GB-536012-A (GB)
Title: Improvements in or relating to porous absorbent sheets and fibres therefor and methods of forming the same
IPC: D06N5/00
Filed: 1939-07-24
Abstract: 536,012. Cellulose-pulp. CELOTEX CORPORATION. July 24, 1939, No. 21469. Convention date, April 13. [Class 2 (ii)] [Also in Group VIII] Soft, coarse, porous, absorbent, felt-like sheet material e.g. for roofing or flooring felt, is made with fibres obtained by de-fibrating mechanically cellulosic material at a temperature above 212‹F., such that the middle lamella of the material is markedly softened, and in an essentially gaseous environment e.g. of or including steam, chemically inert to the material. The time of such treatment may be 20 to 40 seconds. As raw material may be used southern pine, spruce, gumwood, willow, or cotton wood chips, from which resinous and volatile substances may have been removed, and which may be mixed prior to the head-box with kraft pulp, rags, or bagasse.
Patent GB-722468-A (GB)
Title: Improvements in fluid pressure valves
Inventor: DEWAR DOUGLAS
IPC: F16K31/40
Filed: 1952-08-28
Abstract: 722,468. Valves. DUNLOP RUBBER CO., Ltd. Aug. 6, 1953 [Aug. 28, 1952], No. 21605/52. Class 135. A valve device for controlling flow to an outlet 4 comprises a chamber 1 with pressure fluid inlet 9, 8, an annular, fluid-tight valve guide 6 for a valve 15 which closes on a seat 5 surrounding the outlet and consists of a tubular member with a transverse partition located intermediate its ends, a loading spring 16 for the valve, a restricted passage 18 for feeding pressure fluid to the chamber above the valve 15, and means for releasing the pressure above the valve so that the latter will be raised by inlet pressure until the upper end abuts against a seat 13 in the end of the chamber. Pressure above the valve is released when an auxiliary valve 25 is opened by actuation of a solenoid 20. The space within valve 15 is substantially filled by a light alloy plug 17. The two ends of the valve are chamfered to give a knife-edge contact with their respective seats. After the valve 15 has been opened, it cannot close again until the inlet pressure is relieved, but, in a modification, a passage through the cylindrical part of the valve allows inlet fluid to have access to the top of the valve at all times, and the valve will close again as soon as the auxiliary valve 25 closes.
Patent GB-1383916-A (GB)
Title: Automatic dispenser apparatus
IPC: G07F7/10
Filed: 1971-10-13
Abstract: 1383916 Credit-card freed dispensers BURROUGHS CORP 12 April 1972 [13 Oct 1971] 21722/74 Divided out of 1383915 Heading G4X The description is identical to that of the parent Specification 1,383,915 but the claims are directed to dispensing systems in which various checks are made on the validity of the creditcard as well as the identity of the user.
Patent GB-326778-A (GB)
Title: Improvements in or relating to the production of artificial filaments, yarns, or threads
IPC: A47C23/32
Filed: 1928-09-13
Abstract: 326,778. British Celanese, Ltd., Dreyfus, H., Dickie, W. A., and Taylor, W. I. Sept. 13, 1928. Divided on 321,762. Drawings to Specification. Yarns and threads. - Artificial filaments or threads are given a regular or systematic irregularity in denier by producing pulsations in the delivery of the spinning solutions to the jets. To this end, diaphragms, pistons, or plungers are caused to vibrate, reciprocate, or oscillate in contact with the spinning solution. The method is applicable to the manufacture of threads by dry or wet spinning processes, and the initial material may be cellulose acetate or other cellulose ester or ether, viscose, or an ammoniacalcopper solution of cellulose. The filaments may be formed into yarns showing the same variations as the individual filaments, or reduced to staple lengths, either continuously with their production or subsequently thereto, or they may be twisted or doubled with threads or other artificial or natural filaments or fibres. Specifications 321,762 and 326,777 are referred to.
Patent GB-987300-A (GB)
Title: Fluid pumps
IPC: H02K5/132
Filed: 1963-05-31
Abstract: 987,300. Centrifugal pumps. M. HART. Nov. 1, 1963 [May 31, 1963], No. 21780/63. Heading F1C. [Also in Division H2] An electrically-driven pump assembly which can be operated from a domestic power supply includes means for reducing the domestic voltage to 50 volts or less and means for supplying the reduced voltage to a pumpmotor unit which can be immersed in water and which comprises an electric motor driving a pump impeller which is mounted within an impeller housing having a fluid inlet which opens directly to the exterior of the impeller housing, the motor being carried by a non-watertight supporting structure and the rotor and stator thereof being treated to resist corrosion. A pump for submersion in a garden pool for pumping water to a fountain or waterfall comprises an impeller casing 6 attached by screws to a support plate 3 of plastics material, the driving motor 1 being mounted on the other side of the support plate through a circular plate 8 screwed to the support plate and provided with two bosses 10 to which the motor is attached by bolts 11. A shaft bearing 9 is carried by the plate 8. The rotor and stator laminations of the motor are; varnished and baked or coated with a polyurethane varnish. Since the motor is exposed to the water, a low-voltage motor is used, the mains voltage being reduced to 50 volts or less by means of a transformer located outside the water. A motor housing 7 of plastics material may be provided. The pump inlet may be provided with a filter 15. The pump may be mounted vertically instead of horizontally.
Patent GB-881900-A (GB)
Title: Improved process for the production of hydrogen peroxide
IPC: C01B15/023
Filed: 1958-07-08
Abstract: Hydrogen peroxide is produced by the alternate reduction and oxidation of an alkyl anthraquinone in a solvent medium comprising an alkyl ester of benzoic acid, e.g. ethyl or isobutyl benzoate.  The process comprises catalytic reduction with hydrogen of the alkyl anthraquinone in the solvent medium, oxidation with air or oxygen of the reduced solution after removal of the catalyst, thereby regenerating the alkyl anthraquinone and simultaneously producing hydrogen peroxide, and recycling of the oxidized solution to the reduction stage after extraction of the hydrogen peroxide with water. The solvent medium may also comprise alphanethyl-naphthalene, or a diallyl ether of ethylene or diethylene glycol, e.g. dibutyl diethylene glycol.  The alkyl anthraquinone may be 2-ethylanthraquinone.  The catalyst may be Raney nickel.  Examples are given.