baber/WOPTO huggingface dataset:
Patent GB-1280968-A (GB)
Title: Drum brake adjusters
Inventor: PLUME ROBERT WAYNE
IPC: F16D51/20
Filed: 1971-06-17
Abstract: 1280968 Drum brakes GENERAL MOTORS CORP 17 June 1971 [1 July 1970] 28388/71 Heading F2E A twin shoe drum brake actuated by a primary actuator, has a secondary actuator mechanism, with an automatic adjuster, comprising a lever pivoted on one brake shoe adjacent the primary actuator and acting on the other shoe via a strut to separate the shoes, the adjuster comprising a part having a lost-motion connection with the first shoe and a linear one-way clutch connection with the strut permitting only separation of the part and the other shoe, the lost-motion connection limiting the shoe retraction to a predetermined amount. A cable controlled handbrake lever 42, pivoted on a shoe 12, when actuated pushes a strut 50 leftwards causing shoe separation. A locking spring 52 having tangs 60, 62 is fixed to the strut 50 and slides leftwardly relative to a slotted retainer 54, the tangs coacting with the slot. The retainer 54, is fixed to a rod 56 with a bent end 66 having clearance in the rod direction inside a slot 68 in the shoe 12, this providing the lost-motion connection. Upon retraction of the hand-brake lever 42, the shoes 12, 14 retract so far as the end 66 moves across the slot 68. If wear had taken place since the previous hand-brake application, the shoes 12, 14 would attempt to retract further, but relative rightward movement of the spring 52 to the retainer 54 is prohibited by action of the tangs 60, 62 in the retainer slot.
Patent GB-1041758-A (GB)
Title: Salt containers for use with water-softening apparatus
Inventor: MAZIJK ANTON PIETER VAN
IPC: C02F1/68
Filed: 1964-07-09
Abstract: A salt saturator for providing brine to regenerate base-exchange material comprises a tank (1) containing a thick layer of wet salt (2) covered with saturated brine (3) and from which brine is drawn off through a tubular filter lying parallel and close to the bottom of the tank, the filter comprising a slotted tube (4) sealed at its immersion end, the slotted portion being covered with two concentric fine mesh sleeves (6 and 7) separated by a packing of coarse polyethylene particles (8), the sleeves being retained by adhesive tape (9) and rubber bands (10) at their ends.  Sleeves 6 and 7 may be of polyester fabric having, e.g. 32 meshes to the linear inch.
Patent GB-954088-A (GB)
Title: Process of preparing aluminium chlorhydroxides and aluminium hydroxide
IPC: C01F7/57
Filed: 1961-08-04
Abstract: <PICT:0954088/C3/1> Process and apparatus for preparing aluminium chlorhydroxides and aluminium hydroxide by electrolysing an aqueous solution of aluminium chloride as catholyte in a compartment cell, thereby liberating hydrogen at the cathode; intercepting chloride ions migrating towards the anode in a middle compartment and reacting such ions with aluminium oxide to form aluminium chloride; the anolyte comprising a dilute solution of a strong acid allowing evolution of oxygen only at the anode.  The process may be used to form aluminium chlorhydroxides; Al2(OH)nCl6-n, n=1 to 5; and aluminium hydroxide i.e. for Al2(OH)2Cl4, Al2(OH)3Cl3, Al2(OH)4Cl2, Al2(OH)5Cl, Al(OH)3; and mixtures of these can also be obtained. The electroylsis proceeds down the series and can be followed by observing the pH of the reaction mixture which ranges from about 1 at the start to about 4.4, with aluminium hydroxide formed as a precipitate at the close of the electrolysis.  The consumption of hydrogen chloride in the middle compartment is related to the salt or salts produced.  The diaphragm cell has a carbon cathode 2 in the cathode compartment 1, and a platinum anode 4 in the anode compartment 3; the intermediate compartment 5 is separated from the catholyte and anolyte by diaphragms 6 and 7. The anolyte is an aqueous acid whose anion is not discharged as a gas at the anode, and a 0.5-10% solution of sulphuric acid is satisfactory. It is preferred that diaphragm 7 be of cation-permselective membrane material and so not pass chlorine ions and exclude chlorine ions entirely from the anode compartment, inasmuch as these ions in the anolyte could be discharged at the anode as chlorine gas reducing the yield.  Suitable types of permselective membranes are detailed.  Catholyte reaction is favoured by electrolysis at a temperature above 70 DEG C.: the upper temperature limit is determined by the boiling point of the catholyte and is usually about 100 DEG C. Reaction in the intermediate compartment proceeds above 70 DEG C. Chloride ion migration from the intermediate compartment into the anode compartment is less at low temperatures and it is preferred that the anolyte be kept as close to room temperature as is convenient, about 30-35 DEG C. in examples quoted: also ion-permselective membranes tend to become less efficient as temperature increases.  The desired temperature gradient from catholyte to anolyte can be achieved by cooling coils in the intermediate compartment adjacent to diaphragm 7.
Patent GB-389893-A (GB)
Title: Improvements in or relating to electric protective arrangements
IPC: H02H3/08
Filed: 1931-10-13
Abstract: 389,893. Protective cut-out arrangements. ELECTRICAL IMPROVEMENTS, Ltd., Carliol House, and POYNDER, H. B., 14, Haldane Terrace, both in Neweastle-on- Tyne. Oct. 13, J931, No. 28408. [Class 38 (v).] A thermal indicating instrument C such as described in Specification 383,017 which gives an indication of the load on the circuit controlled by a circuit-breaker, is combined with the trip coil A of the circuit-breaker, and has contacts C<1> controlling a shunt circuit across the trip coil in such a manner as to cause instantaneous operation of the circuit-breaker for exceptionally large overloads and inverse- -time operation for normal service overloads. The shunt circuit may include a fuse or, as shown, a non-inductive resistance D.
Patent GB-535229-A (GB)
Title: Improvements in and relating to airscrew blades
IPC: B21K3/04
Filed: 1939-10-23
Abstract: 535,229. Making screw propellers. HIGH DUTY ALLOYS, Ltd., and HERON, J. A. Oct. 23, 1939, No. 28486. [Class 83 (ii)] A hollow air screw or propeller blade is made by shaping one or two blanks of aluminium, magnesium or their alloys or other metal so that the edges thereof are juxtaposed at or near what will be the edges of the finished blade, welding the juxtaposed edges, and then forging the weld. Two blanks 1, 2 of light metal or alloy, produced by stamping, extrusion &c. are welded by fusion at the edges 3 .. 6, which may be rebated together and chamfered to receive the weld material, and the joints are then rolled or swaged to make the metal homogeneous, work out the added metal and give the desired form to the blade edge. The excess metal, including the whole or part of the added weld metal 78, Fig. 3, may be removed by machining or other wise. The root and tip of the blade may be formed integral with either blank or partly with each. In a modification a single blank is forged to form root 20, Figs. 7, 8, tip 29, and two connecting parts 21, 22, themselves joined by a bend 23 which forms one edge of the blade. This blank is pressed so that the edges 24, 25 touch. These edges are then welded, worked and machined as before. The cavity 9 may include a skeleton reinforcement which may be welded in situ.
Patent GB-1235565-A (GB)
Title: Method for preventing the loss of reactants in the pressurized synthesis loop
IPC: C01C1/04
Filed: 1968-06-14
Abstract: 1,235,565. Synthesis of ammonia. TOYO ENG. CORP. 14 June, 1968 [14 June, 1967], No. 28486/68. Heading C1A. [Also in Division C2] In a cyclic pressurized synthesis system for producing ammonia by reaction of nitrogen and hydrogen in the presence of a catalyst, a portion of the circulating gas stream is removed and compressed to effect further reaction, and the ammonia produced separated from the inert gaseous constituents of the gas stream. Additional reactants may be added to the removed portion of the gas stream prior to compressing it, in order to further the reaction. The energy released when the removed stream is allowed to expand after the separation of the ammonia is used to compress the further parts of the removed stream prior to the separation of ammonia.
Patent GB-830499-A (GB)
Title: Improvements in or relating to driving transmissions for vehicles having multiple driven wheel axles
Inventor: TAPP ERNEST THOMAS JAMES
IPC: B60K17/36
Filed: 1957-09-10
Abstract: 830,499. Motor vehicle driving gear. COUNTY COMMERCIAL CARS Ltd. March 24, 1958 [Sept. 10, 1957], No. 28576/57. Class 79(2) A vehicle transmission has a main driving shaft 50 coupling the gear box to a bevel pinion 42 and crown wheel 27 driving one of the wheel shafts 10 and an intermediate shaft 46 coupling a shaft 26 connected by spur gears 34, 39 to the pinion 42 with a second shaft 26 connected by a similar but laterally inverted arrangement with a bevel pinion and crown wheel driving another of the wheel shafts 10. The shaft 46 is inclined to the longitudinal axis of the vehicle and connected by universal joints 47 with the shafts 26. Each axle assembly is mounted in a banjo type casing 12 secured to the central portion of a half elliptical multiple leaf spring, the adjacent ends of the springs being connected by links to opposite ends of a rocker arm mounted on the chassis to which the remote ends of the springs are pivotally secured direct.
Patent GB-273645-A (GB)
Title: Improvements in or relating to dental presses
IPC: A61C13/00
Filed: 1926-11-12
Abstract: 273,645. Ohio Chemical & Manufacturing Co., (Assignees of Axelrod, M. L.). June 29, 1926, [Convention date]. Dental flasks; heating apparatus; moulding indiarubber and resins.-A press for dental flasks is provided with electrical heating means for the curing of indiarubber, phenol aldehyde &c. dentures. Coils 15, 16, with terminals 19, 20, are embedded in the upper platen 13, and base 10, respectively, of a press. An intermediate plate with coils 18 may be inserted between guides 14, if it is desired to employ two flasks 24, 25 simultaneously. The coils are preferably connected in the same circuit which is controlled by a thermostat 22, 23.
Patent GB-173871-A (GB)
Title: Improved apparatus for squaring sheets delivered from the flyer of a printing or the like machine
IPC: B65H31/34
Filed: 1920-10-08
Abstract: 173,871. Volkmere, P. Oct. 8, 1920. Delivery apparatus.-Apparatus for knocking- up sheets delivered from a printing or other machine by a flyer comprises a central main bar 12 connected to a front jogger 3, and, by bellcranks 14 and links 15. to side joggers 3 and reciprocated from the shaft 9 of the flyer 10 by means of a bell-crank 11 on the shaft 9 carrying bolts 11<a> adapted to strike one end of a lever 8 connected at its other end to the bar 12. The joggers 3 are adjustably secured by screws 6 to perforated bars 4 movable in guides 5. The parts of the apparatus between the joggers may be covered by a lid or false bottom on which the sheets are piled. Intermediate links may be provided between the bar 12 and the bellcranks 14.
Patent GB-632545-A (GB)
Title: Improvements in table top refrigerators
IPC: F25D25/00
Filed: 1947-10-27
Abstract: 632,545. Cabinets. McKELLAR, O. A. Oct. 27, 1947, No. 28640. [Class 52 (i)] [Also in Groups XIII and XVII] A refrigerated top-opening cabinet 1 contains vertically-movable storage racks 5, 5d each fitted with a lug 8 which may be engaged, by selector rods 11 carried on the top plate 10 so that by engaging the appropriate rods with the lugs any desired racks may be raised for access when the plate 10 is elevated. The top 10 is borne on four rods 12 having pistons 13 working in cylinders 9 supplied with compressed air by a motor pump, the air line being fitted with an inlet valve and a pressure relief valve which are actuated by a handle 22 through a linkage 21, 20, 19. Each rod 11 is fitted with, a handle and each lifting lug 8 is located so that it lies within or approximately within a triangle defined by three of the rods 12. The top plate 10 may serve as a table.
Patent GB-533610-A (GB)
Title: Improved process and apparatus for the electro-deposition of tin alloys
IPC: C25D3/60
Filed: 1939-10-25
Abstract: 533,610. Electrodeposition of alloys. LOWINGER, V. A., and BAIER, S. W. Oct. 25, 1939, No. 28678. [Class 41] In the electrodeposition of alloys of tin with copper, nickel, cobalt, cadmium, zinc, antimony &c. and particularly alloys with a tin content above 30 per cent., the plating solution is replenished by the use alternately of anodes of tin and the alloying metal. In an example for depositing a tin-copper alloy, the plating solution contains sodium stannate, sodium cuprocyanide, caustic soda, sodium cyanide and rochelle salt. The plating bath a with a central cathode e is operated for some time with copper anodes c<1>, c<2>. These are removed and replaced by tin anodes b<1>, b<1>. The anodes are connected through separate ampere-hour meters f, g, to a change-over switch h. The tin anodes are polarized to form an oxide coating on their surfaces by lowering them slowly into the solution while the current is flowing. Specification 525,364 is referred to.
Patent GB-861292-A (GB)
Title: Improvements in or relating to apparatus for cutting hard materials
IPC: B28D5/02
Filed: 1957-09-13
Abstract: 861,292. Severing by grinding. FEHLMANN, H. Sept. 13, 1957, No. 28946/57. Class 60. An apparatus for severing hard materials, such as rubies &c., comprises at least one workpiece holder 14, Fig. 1, and at least one grinding wheel 1, either of which is urged towards the other in a direction parallel to the plane of the wheel, the wheel, in addition to rotating, being oscillated along on arcuate paths in its plane so that the point of contact between the wheel and workpiece 15 is continuously varied during grinding. The grinding wheel is mounted on a spindle 2 which is belt-driven from a motor 10 and located on an arm 11 pivotally mounted on a column 13. An eccentric 3, carried on the spindle, engages a slot 4 in a pedestal 6 and during rotation of the spindle imparts a vertical, arcuate movement to the grinding wheel as the work 15, which is secured in the rotary holder 14, is urged by any known feed device towards the grinding wheel. Two eccentrics may be employed to vary the amplitude of movement of the grinding wheel. The rate of grinding may be increased by having workpiece holders on both sides of the wheel and a plurality of wheels may be disposed on the spindle to enable multiple grinding to be performed.
Patent GB-380632-A (GB)
Title: Improvements in cinematograph projecting apparatus
IPC: G03B21/16
Filed: 1931-10-19
Abstract: 380,632. Kinematograph projectors. WILSON, H. A. M. and CUMMINGS, L. T., 29, Alberta Street, Sydney, Australia. Oct. 19, 1931, No. 29018. Convention date, Oct. 20, 1930. [Class 97 (i).] In projectors wherein the shutter forms a fan and is disposed between the light chamber and the operating mechanism, the arrangement is such that air is discharged from the shutter housing on to the film gate. As shown, the shutter 14, Fig. 3, has inclined blades 23 attached to it on the side adjacent the gate ; it is enclosed in a housing 15, Fig. 1, which is secured to the mechanism casing 12 and is provided with an opening directed towards the gate, an opening 17 provided with a flared mouth 18 surrounding the light beam, a central opening 19, and rows of perforations 21 extending approximately half-way round the housing and remote from the opening 17. The shuttle, driving mechanism, &c., may be mounted on a plate within the casing 12 which may be raised and lowered for film centring as described in Specification 230,163, [Class 97 (i), Optical systems &c.]. The shutter shaft passes through slots in the casing 12 and housing 15, and the housing 15 is slightly elliptical, to permit the movement of the shutter. An inspection window 24 having violet glass may be provided in the housing 15.
Patent GB-1165675-A (GB)
Title: Improvements in Containers
IPC: B65D23/06
Filed: 1966-06-28
Abstract: 1,165,675. Coated containers. MINNESOTA MINING & MFG. CO. 28 June, 1966 [28 June, 1965], No. 29048/66. Heading B2K. [Also in Divisions B8 and C3] A lip of a container is coated with a fluorocarbon compound (see Division C3) having an oleophobic fluorocarbon portion and having a functional portion which will adhere to the surfaces of the lip. The lip or orifice is preferably formed with sloping surfaces defining an apex which is closer to the exterior surface than to the interior surface. The exterior surface slopes towards the apex centreline at a greater angle than does the interior surface. The lip surfaces may be made of siliceous material. The functionality of the fluorocarbon compound may be a silicon containing group, this group being chemically bonded to the siliceous material.
Patent GB-192181-A (GB)
Title: Improvements in stair rod eyes
IPC: A47G27/06
Filed: 1921-11-02
Abstract: 192,181. Davis, F. H. Nov. 2, 1921. Stair-rod eyes.-A bridge member 7 is pivoted so as to move laterally with respect to an angular base member 1, and a sheet metal retaining member 3 formed separately from the base member is fixed thereto so that one edge 5 of the retaining member forms a resilient tongue to receive and hold the bridge member. The bridge member 7 and retaining member 3 are secured to the base member 1 by providing each part with a drawn hole 8 to be passed through a hole in the base member over which it is then flanged. Projections 2 adjacent to the corner of the base member are bent up to form stops to prevent endwise movement of the stair rod. The end 9 of the bridge member 7 is curved and adapted to engage with a. corresponding curved portion 5 of the retaining member.
Patent GB-628986-A (GB)
Title: Improvements in or relating to aerials
IPC: H01Q21/10
Filed: 1946-10-01
Abstract: 628,986. Aerials. CORK, E. C. Oct. 1, 1946, No. 29182. [Class 40 (vii)] An aerial coupled to energizing or receiving apparatus capable of operating over a wide frequency band comprises a series capacity loaded conductor, the loading being at intervals of less than a quarter wavelength and causing it to function over the frequency band substantially as a half or quarter-wave resonator with substantially uniform efficiency. A wide frequency band consists of a band of a width 8 per cent or more of its mean frequency and the efficiency should be such that nowhere in the band the reflection co-efficient exceeds 10 per cent. A capacity loaded dipole, Fig. 1, may have the loading elements either equal or unequal in magnitude and distribution. Preferably, the loading is non-uniform to cause more current to flow in the extremities of the aerial whose physical length may be of the order of 4 freespace wavelengths. Because of the more extended current distribution the aerial has a greater directivity than a normal dipole and it is stated that the lobes of the polar diagram may show a tendency to split. By inclining the arms 10 and 11 as shown, this tendency may be overcome although the radiation within the V then exceeds that in the opposite direction. Another embodiment, Fig. 2 (not shown), is formed of a plurality of insulated but overlapping tubular conductive elements which form a capacitively loaded aerial electrically similar to that of Fig. 1. A feeder may be connected either at the adjacent ends 13, 14, or to the extreme ends and the invention is also applicable to unipoles. To provide a D.C. or low-frequency de-icing current path the capacities may be shunted by a high radio frequency impedance line or coil. Specification 586,578 is referred to.
Patent GB-206007-A (GB)
Title: Improvements relating to fluid pressure turbines
IPC: F01D21/14
Filed: 1922-10-26
Abstract: 206,007. Stubbs, A., and Metropolitan- Vickers Electrical Co., Ltd. Oct. 26, 1922. Motor power plant.-In a compound turbine installation of the type described in Specifications 117,626 and 124,202 in which a low-pressure unit is cut out when, by short circuit or otherwise that unit is unloaded, means are provided for cutting out simultaneously corresponding high-pressure inlet nozzles. On overspeeding of either lowpressure unit 2, 3, Fig. 1, the corresponding supply value 10 is automatically closed and this in turn effects the closure of a valve 16 in one of the nozzle supply pipes 14 for the high-pressure unit 1. In a modification, the valves 10 are interconnected with valves in independent hih-pressure supply-pipes. Alternatively the means for cutting out the nozzles may be made responsive to the exhaust pressure of the high-pressure unit.
Patent GB-830194-A (GB)
Title: Improvements in or relating to a snap fastener socket member
Inventor: FENTON PAUL EDWIN
IPC: A44B17/00
Filed: 1957-09-17
Abstract: 830,194. Stud and socket fasteners. SCOVILL MANUFACTURING CO. Sept. 17, 1957, No. 29290/57. Class 44 A snap fastener comprises a socket 10 and stud 11, the socket being formed from a single piece of sheet metal and attached to sheet-like material 15 by means of a pronged ring 16 which is forced into engagement with an upwardly and outwardly flared breast portion 18 of said socket. The stud 11 is engaged by resilient fingers 17 constituted by a slotted central portion of the socket member, each finger having on its inner face a lengthwise extending groove 25 intermediate its side edges to deform that portion of the finger outwardly into close proximity to the breast portion 18, thus preventing any lateral movement of the fingers beyond their elastic limit. Specification 499,063 is referred to.
Patent GB-711169-A (GB)
Title: Improvements relating to can handles and holders
IPC: A47G23/02
Filed: 1951-12-14
Abstract: 711,169. Container handle. FAULKNER, H. March 6, 1953 [Dec. 14, 1951], No. 29363/51. Class 66 A detachable handle for a used can comprises a metal strip 4 with its lower end 6 hooked to engage the bottom rim of the can and a clip, 8 for engagement with the upper rim, the clip 8 being bolted to the strip 4 by a bolt 9 passing through one of a series of holes; or through a slot 7 in the strip 4. The upper end of the strip 4 may be curved as shown.
Patent GB-719522-A (GB)
Title: Improvements in or relating to rotary pumping apparatus for liquid materials capableof setting
Inventor: DAVIES LEONARD TRUMAN
IPC: F04C2/107
Filed: 1952-11-21
Abstract: 719,522. Rotary pumps. COLCRETE, Ltd. Nov. 16, 1953 [Nov. 21, 1952], No. 29426/52. Class 110(2) A downwardly directed pump of the Moineau, or " Mono," (Registered Trade Mark) type 3 has a feed tank 10 located above it, the pump-driving shaft 5 passing through the tank. A liquid material such as cement grout is supplied to the tank 10 and a paddle, or throught may be fitted to the shaft at its lower end, which has a slight gyratory motion. A universal joint 6 couples the shaft 5 and the pump rotor 4. The material pumped into a pipe 15 divides, some being discharged through a valve or cock 17, and some re-entering the tank by way of a by-pass 18. 19, 20. The latter contains a flexible portion 19 which may be squeezed by means of a handwheel 23 and crossbar 21 to regulate the quantity being by-passed. This line contains a cock or valve 25. The pipe 20 discharges tangentially into the tank. A supply pipe for the tank comprises a U-shaped pipe, opposite to the pipe 20, one end extending downwardly within the @, the other ring coupled to a supply source. The pump may be driven by an engine 1 through transmission as shown, or belting, the whole being mounted on a. trolley 2. Two or more pumps may be supplied by a single tank which may be other than circular in cross-section. A pipe may connect the tank with the pump stator 3.