baber/WOPTO huggingface dataset:
Patent GB-951602-A (GB)
Title: Improvements in disc brakes for vehicles
Inventor: MOGFORD REGINALD DOUGLAS
IPC: F16D55/228
Filed: 1959-01-17
Abstract: 951,602. Disc brakes. GIRLING Ltd. March 11, 1960 [Jan. 17, 1959], No. 1809/59. Headings F2E and F2F. A disc brake has at least one friction pad that is permitted limited movement with the disc, this movement being utilized to provide a servo action increasing the force with which the pad is applied to the disc. Pads 12, Fig. 1, are moved against a disc by pressure from a master cylinder acting in cylinders 16 via union &c. 24, 25, 26, 27 and 24, 28, 29 and acting in annular chambers 17 via passage 33 and groove 34 in valve 32 and passages 36, 37 ; at a certain pressure, valve 32 moves to close passage 36. The pistons 15 in cylinders 16 act on the backing plates 13 through push rods 14. Pads 12 move with the disc causing balls 23 in recesses 22 in the backing plates 13 and piston head 19 to firmly apply the brake ; the valve 32 preventing pressure developed in chambers 17 from passing back to the master cylinder. On brake release, a spring 35 moves valve 32 to release fluid from chamber 17. In Fig. 2, pressure from a master cylinder acts in chambers 45 and via valve 56 in chamber 44 to move piston 46 to move pads 41 via balls 47 in grooves in the backing plates 42 and pistons 46, valve 56 closing at a certain pressure to close chambers 44 from the master cylinder. Movement of the pads with the disc causes plungers 51 to force fluid from chamber 52 into chambers 44 to augment the pressure previously supplied from the master cylinder. The disc or caliper may be slid axially by one pad to engage the disc with a pad fixed in the caliper. The recesses 22, Fig. 1, may be replaced by grooves in the piston and backing plate, the latter two members being slightly inclined relative to the disc. Pistons 18 and 43 advance automatically in response to pad wear since the system is topped up from the master cylinder reservoir as the pads wear.
Patent GB-954597-A (GB)
Title: Process for improving the efficacy of alkali metal dithionites
IPC: D06P1/22
Filed: 1962-01-18
Abstract: Vat dyestuffs are reduced, azo dyestuffs are discharged and materials are bleached by using alkali metal dithionites (hydrosulphites) and a catalyst which is a Redox system the potential of which lies in the range -0.5 to -1.5 volts.  The specified catalysts are salts of hexacyano-cobalt and tetracyano-nickel which, in their oxidised form, may be K3Co(CN)6 and K2Ni(CN)4.  The preferred ratio of catalyst to dithionite is 1:100.  The catalyst may be added as an aqueous solution to a solution of the reducing agent or, in the case where the reducing agent is prepared in situ from, say, a bisulphite and a borohydride, the catalyst may be mixed with the dry bisulphite powder.  Examples are given of the reduction of vat dyestuffs.
Patent GB-1479541-A (GB)
Title: Gate mechanism for a truck platform
IPC: B62D33/037
Filed: 1975-01-16
Abstract: 1479541 Operating tailboards C E B NORDBERG 16 Jan 1975 [17 Jan 1974] 1927/75 Heading E2M In a tailboard gate operating mechanism for trucks the gate 1 is operated by a fluidpressure operated cylinder 2 and link coupling 3 such that the gate 1 is locked in the closed position shown in full lines in Fig. 1 wherein a first link 4 and a second link 5 attached to a rotatable shaft 7 are in a straight line when the fluid pressure operated cylinder 2 is in its non-activated state. In the closed position of the tailgate 1 shown in Figure 1 an upper gate 8, pivoted about its upper edge, is held in a closed position by the upper portion of the tail gate 1. An alternative embodiment is disclosed in the specification (Figs. 2 and 3, not shown) wherein an upper gate (8) is pivotable about both its upper edge and its lower edge and normally locked in position by pins (17) or (19).
Patent GB-1405858-A (GB)
Title: Fusion heater
IPC: H05B3/00
Filed: 1973-01-15
Abstract: 1405858 Pipe joining heater RIDGE TOOL CO 15 Jan 1973 [17 Jan 1972] 1988/73 Heading H5H [Also in Division F2] In a heater for butt welding plastics pipes comprising an annular plate of good thermal conductivity, e.g. aluminium whose outer circumference 14 is of greater diameter than the diameter 16 of the largest pipe to be heated and whose central opening has a circumference 28 smaller than the circumference 18 of the smallest pipe to be heated, a plurality of equispaced radial openings 22 extending through the plate between the outer circumference 14 and inner circumference 28 and housing a plurality of resistance heating elements 24 whose leads 25, 26 extend into the central opening, a radial opening 38 in the plate housing a thermostat 40, a radial opening 36 between the central opening and the outer circumference 14 of the plate through which thermostat leads 41, 42 pass, and a radial opening 64 through the plate through which power leads 66 pass; the interconnections between the heating elements thermostat, and power leads are effected within the central opening so that the overall dimensions of the heater may be reduced. Ventilated covers, e.g. 56 are provided for the central opening and a pocket 46 is provided for a thermost calibrating thermometer. A thermostat setting screw 44 is accessible via a removable cover-plate 50. The elements 24 and thermostat are metal sheathed.
Patent GB-632063-A (GB)
Title: Spring clip-on electrical heater for water pipes
IPC: H05B3/58
Filed: 1948-01-23
Abstract: 632,063. Electric waterheaters. TRAINOR, E., and TRAINOR, L. Jan. 23, 1948, No. 2050. [Class 39 (iii) ] A heater for water pipes comprises a half-cylindrical holder A which is crescentshaped in cross-section, an electric heating element, and a spring clip B shaped to conform to the shape of the pipe to be heated. The clip B and the heating element are bolted at G along the centre of the concave inner surface of the holder A. The holder A may be hollow, in which case the element is disposed in its interior.
Patent GB-870478-A (GB)
Title: A process for preparing a polymer latex
IPC: C08J3/07
Filed: 1960-01-20
Abstract: An aqueous latex of a rubbery polymer is prepared by dissolving the polymer in a solvent, emulsifying the solution at 150 DEG  to 212 DEG F. in water containing an emulsifying agent, and then stripping the solvent from the dispersion.  Rubbery polymers specified are butyl rubber, polyisobutylene, natural rubber, isobutylene/styrene copolymers and copolymers of butadiene with styrene or acrylonitrile. The solvent used may be an aliphatic hydrocarbon, in particular hexane.  Preferred emulsifying agents are metal, ammonium and amine salts of organic sulphates. Optional ingredients are hydrogen ortho-phosphate salts as stabilizers, and anti-foaming agents such as polysilicone oils. The emulsification of the solution in water may be effected with a dispersator, a colloid mill or an homogenizer.  The products find application in paint formulations, dipped goods, coated fabrics and coated papers.  Specification 824,431 is referred to.
Patent GB-680700-A (GB)
Title: Improvements in or relating to fuel flow indicating systems
IPC: G01F9/00
Filed: 1951-01-26
Abstract: 680,700. Electric fuel flow indicators. BENDIX AVIATION CORPORATION. Jan. 26, 1951 [Feb. 11, 1950], No. 2101/51. Class 40 (i). In a system for repeating the movements of, for example, a vane type flow-meter 30 by means of a selsyn system, the selsyn receiver, together with a pointer 46 to indicate rate of flow, is driven by a servo-motor 20 against a spring 44 via a magnetic drag cup 26. As shown, the motor also drives a counter 48 to indicate total flow or total fuel remaining.
Patent GB-651270-A (GB)
Title: Improvements in and relating to lock nuts
IPC: F16B37/02
Filed: 1948-01-23
Abstract: 651,270. Locking nuts. UNITED-CARR FASTENER CORPORATION. Jan. 23, 1948, No. 2118. Convention date, Jan. 25, 1947. [Class 89(i)] A sheet metal nut has a threaded barrel 12, Fig. 3 stamped from the base which is provided either with holes 13 or with welding-projections to anchor the nut. Integral wings 15 are bent up to engage the bolt beyond the end of the barrel and their tips are arcuate and formed at 17 to suit the thread. One side of the base may serve to anchor the nut the other being bent up to form a single wing. When the nut is not to be anchored the base may have a hexagonal flange 22 surrounding the barrel and the locking wings 25 extend from opposed spanner faces, or in the form shown in Fig. 3, the lugs 10a are omitted. There may be only one wing. Specification 3771/48 (as open to inspection under Sect. 91) is referred to.
Patent GB-205416-A (GB)
Title: Improvements in silencers for gaseous currents
IPC: F01N1/08
Filed: 1923-01-24
Abstract: 205,416. Straussler, N. Jan. 24, 1923. Exhaust-silencers and the like. - A silencer filling S consists of wire wool, wire strands, or the like enclosed in a bag of metallic netting or loosely woven metallic fabric or in a cover of expanded metal. Alternately, the filling may be a roll of metallic netting or of two or more sheets of expanded metal, and a number of short rolls may be employed. The casing of the silencer comprises two parts A, B secured together by a clip K of channel section embracing rims or beads M, N on the parts A, B and tightened by means of a wing nut or other means. The two parts may be of unequal length, to enable silencers of varying length to be formed by assembling long or short parts or one short and one long part. Longer silencers may be made by adding a cylindrical section. The filling may be spaced from the casing by ribs or flutings T and may have a recess W in which carbon particles in the exhaust will be deposited. The neck C of the casing has a hollow radial wing E through which passes a bolt bv which the neck C can be tightened on the exhaust pipe. The outlet end D may be of a different diameter from the end C and provided with a similar wing and bolt, so that the silencer may be reversed for attachment to an exhaust pipe of different diameter.
Patent GB-1413574-A (GB)
Title: Pressure-operated electrical switch
IPC: H01H35/24
Filed: 1973-01-16
Abstract: 1413574 Anti-skid braking systems ALFRED TEVES GmbH 16 Jan 1973 [17 Jan 1972] 2184/73 Heading F2F [Also in Division H1] A fluid-pressure energy storage system for an anti-skid braking system is provided with an electrical switch (Division H1) described with reference to Fig. 1 (not shown) and has areservoir 20, Fig. 2, individual volume-increasing displacement pistons 21 for each braked wheel integrated into the storage unit and a pressurizing pump 29 controlled by the switch lead 28. Under increasing pressure in the reservoir a piston 23 acts through a plate 24 to compress elements 22 of an emergency spring and also on to a movable cylinder 26 which is located within the spring casing 25 which has a yieldable portion in the region where the switch housing 1 is attached by its screwed end 17. When projection 30 of the pressure plate 24 has covered the disstance "s" it bears on an end portion 12 of the switch actuator and continues until lost motion within the switch is taken up and pump is switched off. The storage system normally remains under useful fluid pressure limits determined by the said lost motion and with the spring 22 compressed but if reservoir pressure fails the spring 22 acts through the plate 24 on to the displacement pistons 21 and keeps them in their initial positions with the anti-skid control out of action but with normal braking available. (The reservoir 20 is the pressure source for part of the anti-skid control, including operation of pistons 21).
Patent GB-272805-A (GB)
Title: Improvement in side tipping and demountable bodies for vehicles
IPC: B60P1/16
Filed: 1927-01-26
Abstract: 272,805. Drewry, J. S., and Shelvoke & Drewry, Ltd. Jan. 26, 1927. Tipping- wagons; vehicles with removable bodies.-In a vehicle of the kind provided with a number of small bodies or containers adapted to be run on and off the vehicle frame and to be tipped, each body is mounted on an individual tipping frame adapted to be tipped sideways by a screw, hydraulic cylinder and ram, or similar mechanism. The vehicle is provided with sets of rails A on to which the wheeled bodies B may be run and between the rails A of each set is provided a tipping frame C comprising a beam pivoted at D to frame members E, the beams being operated independently by hydraulic rams, screw gearing, &c. Each body during tipping is held on the tipping frame C by means of a pin H. Four pairs of wheels J are provided on the removable bodies and they are positioned so that during tipping the front wheels are coaxial with the pivots D of the tipping frames C.
Patent GB-1342412-A (GB)
Title: Production of solid glass blanks by moulding
IPC: C03B11/07
Filed: 1971-01-18
Abstract: 1342412 Moulding glass CARL-ZEISSSTIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 18 Jan 1971 [17 Jan 1970] 2251/71 Heading C1M In moulding apparatus, for producing a solid disc shaped glass blank, comprising a mould having an undivided mould cavity and a die with die cavity so that the blank corresponds to the combined mould and die cavities, the mould comprises a U-shaped mould section 3 the base of which is arched to provide a cavity 5 and the limbs of which are closed by a coverplate 4 to define a chamber 6 for cooling the mould, the cover-plate 4 having conduits 14, 16 communicating with the chamber 6 to enable cooling fluid to be introduced into and discharged therefrom through inlet means 13 and outlet means 17 and the mould being provided with a passage 8<SP>1</SP>, 8, 10, 11, 12 extending from the cavity 5 through the mould section 3 and the cover-plate 4 to enable the cavity 5 to be evacuated for forming the blank, or supplied with fluid for removal of the blank. The passages 16, formed in an annular plate 15, may be perpendicular, as shown, to the passage 14 or may be inclined so as to deflect the coolant fluid to preferred positions. For maintaining the central area of the mould hotter than the marginal areas, a hollow plate 18 is provided and pressed on to packing 21 on the central wall 7 of the mould by springs 19, 20. The shape, size and position of plate 18 may be varied as required. The die is provided with a bore system (24) to the die cavity (23) for discharge of air during pressing.
Patent GB-1434691-A (GB)
Title: Arrangement for securing a device to a shaft
IPC: F16D1/06
Filed: 1974-01-17
Abstract: 1434691 Mounting parts on shafts; cams BORG-WARNER CORP 17 Jan 1974 [9 Feb 1973] 02307/74 Headings F2U and F2K A cylindrical member 16, such as a bearing race, pulley or gear part, is locked on to a shaft 10 by one or two tapered sleeves 36 which wedge between conical surfaces 20 and the shaft, an outwardly turned edge 44 on each sleeve being received in a groove 22. Each sleeve may be split or slotted as shown and provided with an outwardly-turned edge in the form of a flange or ears 44 for retention during transport. Upon assembly the sleeves are moved axially. In another embodiment, Fig. 11, the sleeve 56 is rotated during assembly to cause ears 54 to ride in a serpentine camming groove 52 and exert axial pressure. In Fig. 15 (not shown) the sleeve is constructed from sheet metal or tubing. In a further embodiment, Figs. 16 and 17 (not shown), the ears 84 are helically and spirally formed to cause axial and wedging movement when rotated during assembly.
Patent GB-123071-A (GB)
Title: Improvements in Pyrophoric Igniters.
Inventor: HENRIX GUSTAV ADOLF HANSSON
IPC: F23Q2/48
Filed: 1919-01-30
Abstract: 123,071. Henrix, G. A. H. Jan. 30, 1918, [Convention date]. Lighting burners by frictional devices.-In a pyrophoric igniter for lighting gas &c., a holder 11 is moulded and shrunk on a plug 10 of pyrophoric material for a portion of its length. An internal shoulder 12 is formed in the holder at the rear end of the plug during the moulding process and prevents longitudinal displacement of the plug in the holder.
Patent GB-1189802-A (GB)
Title: Process for Supplying Welding and Cutting Apparatus with Mixtures of Protective Gases.
IPC: B23K9/16
Filed: 1969-01-15
Abstract: 1,189,802. Welding and cutting by fusion. MESSER GRIESHEIM G.m.b.H. 15 Jan., 1969 [14 Feb., 1968], No. 2442/69. Headings B3R and B3V. In a gas shielded welding (consumable electrode) and cutting, a mixture of liquid oxygen and liquid argon is evaporated and supplied to welding and cutting devices. The liquid mixing may be carried out by the user. As shown, the liquid mixture is held in a heatinsulated container provided with a filler pipe and closure valve 3 and, for maintenance of pressure over the liquid, a safety valve 2. The liquid is taken, through a shut-off valve 4, to an evaporator 6 from which the gas mixture is distributed, through a pressure regulating device, to take-off valves 8. The mixture may contain up to about 1% (by vol.) nitrogen.
Patent GB-673038-A (GB)
Title: Arrangement for the control of a selector without a home position in a marking system
Inventor: OBERMAN ROELOF MAARTEN MARIE
IPC: H04Q1/18
Filed: 1950-01-31
Abstract: 673,038. Automatic exchange systems. STAATSBEDRIJF DER POSTERIJEN, TELEGRAFIE EN TELEFONIE. Jan. 31, 1950 [Feb. 7, 1949], No. 2550/50. Class 40 (iv). In a system in which first and second group selectors GK1, GK2 of no-normal type are controlled from a register by comparison of A.C. or D.C. potentials, the characteristic potential of the outlet required at each stage is temporarily neutralized by a busy test relay immediately the outlet is seized until a permanent disconnection is effected by the commencement of switching in the next selector stage. As shown, operation of a start relay S in the register extends earth at contact s2 over previously positioned switches K to a relay A which starts the first group selector GK1 at drive magnet D. At each outlet, a potentiometer RT1, RT2 is earthed by the d wiper to provide a characteristic marking potential which is tested over wiper e by a zero switch NW. When a marking potential is found corresponding to a selected reference potential at a device VERG, the zero switch operates and stops the selector by transferring earth at contact s1 from the driving magnet to a busy test relay T. If the outlet is free, T operates over the c wiper and resistor RT3 and holds over a lowresistance path comprising a second winding and a relay U so that a low-potential busy marking of the outlet is provided. Relay T earths the zero switch so that it releases and extends the earth at contact sl to a control switch (not shown) which then establishes a fresh reference potential at VERG appropriate to the required outlet in the second group selector GK2. The earth at contact s2 is transferred by T to the e wiper so that the reference potential is neutralized and a switch - through relay B pulls up in series with A. Contact b2 (which is preferably make - before - break) then transfers the neutralizing earth over wiper b and relay V operates from this earth over wiper e. Relays T and U then fall back, the release of T operating relay AT in the second group selector from earth at contact s2 so that the characterizing potentiometer marking over RT1, RT2 is disconnected at contact at3 and the positioning of selector GK2 initiated. Until released by U, relay V applies a temporary earth at the zero switch and neutralizing earth on the e wiper.
Patent GB-572761-A (GB)
Title: Improvements in or relating to machines for charging clips which form the links of cartridge-belts for automatic guns
IPC: F42B39/10
Filed: 1941-02-26
Abstract: 572,761. Cartridge-belt loading machines. PARRY, F., and MOLINS MACHINE CO., Ltd. Feb. 26, 1941, No. 2626. [Class 92 (ii)] A machine for charging with cartridges the clips of a machine gun cartridge-belt comprises a rotary charging-unit 3, Fig. 1, having pockets or flutes 7 on a drum 4 to receive a succession of clips and a succession of cartridges each with its bullet end facing a clip, the charging-unit including means, such as a cam 57, to move the cartridges in succession end. wise into the clips. Further, a cartridge-feeding unit 5 and a clip-feeding unit 6 are associated with the charging-unit to build up reserve supplies of clips and cartridges yieldingly against the charging-unit, the units being operated by a single driving means and being readily detachable for transferring the machine from one place to another. Fig. 1 shows the units assembled on a table 11 supported on legs 12 braced by bars 16, 18, the support being readily taken to pieces for transport. The parts are driven from an electric motor 64 geared by a detachable chain 67 to a countershaft 66 which may be hand driven. The shaft 66 is geared to a shaft 71 which through a chain 73 drives the feed-belt 25 of a cartridge-feed unit as described in Specification 572,760, and a shaft 80 geared to the fluted drum 4 of the rotary charging-unit 3. The shaft 71 is also connected by a detachable chain 87 to a camshaft 89 controlling the clip-feeding unit. The cartridge feed may be interrupted at regular intervals to supply special tracer bullet cartridges from a shoot 35 by a hooked plate member 26 driven from a cam 34 engaging a roller on a lever mechanism 31, 30, 29. The clip feed is from packets of oriented clips as described in Specifications 541,954 and 539,184, the packets being carried in a hopper 41 and being moved laterally by a plunger 42, Fig. 6, one by one into an inclined guide 48 down which the clips are fed to the charger by gravity. The cam-shaft 89 has a cam 91, for operating a pusher 45 to move the packets partly down the guide to release a catch retaining the clips in the packets, and a cam 90 to operate an arm 51 to return the empty packets into position for ejection into a box 56 by the action of the plunger 42 operated by a face cam 92 on the shaft 89. The loaded belt is retained on the charger drum by a strap 59 until the belt is stripped from the drum by a member 60 to leave the machine by a guide 61. Specification 572,769 also is referred to. The Provisional Specification refers to the use of plungers instead of a cam for pushing the cartridges into the links.
Patent GB-220232-A (GB)
Title: Improvements in fastenings for expanding bracelets and the like
IPC: G04B37/14
Filed: 1924-02-01
Abstract: 220,232. Gleadall, A. Feb. 1, 1924. Stud-and-slot fastenings.-A fastening for expanding bracelets, necklaces &c., comprises a shank 12, shown in Fig. 2 as applied to a bracelet, having an enlarged head 13 and pivotally or rigidly attached to the link 11 at one end of the bracelet, and adapted to engage a slotted fastening member 10 formed in the link at the opposite end of the bracelet. A spring-actuated member 14, in this case the centre sliding portion of the end link 7, is adapted, when tension is released from the bracelet after the fastening has been engaged, to bear against the enlarged head of the shank 12 and retain it in the narrow portion of the slot 9 in the member 10. Fig. 4 shows the fastening adapted to secure an expanding watch wristlet, while Fig. 6 shows its adaptation to necklaces. Specification 113,492 is referred to.
Patent GB-452864-A (GB)
Title: Improvements in and relating to transformers of the oil immersed type
IPC: H01F27/14
Filed: 1935-01-26
Abstract: 452,864. Transformers ; pressure - relieving devices. ROWBOTHAM, J. L., BILLIG, E., and HACKBRIDGE ELECTRIC CONSTRUCTION CO., Ltd., Hersham, Waltonon-Thames. Jan. 26, 1935, No. 2678. [Class 38 (ii)] [See also Group XXIX] In oil-immersed transformers, the tank is placed in communication with one or more rigid-walled expansion chambers sealed from communication with the atmosphere and containing a gas. Fig. 9 shows an arrangement in which expansion chambers 4 are formed on opposite side walls of the tank 1 and communicate with the oil in the tank through openings 7. Fig. 11 shows an alternative arrangement in which three expansion chambers 4 are located within the tank 1 above and below the transformer 9, these chambers communicating with the oil in the tank through openings 6. In other forms the expansion chambers may be entirely open at the bottom, or they may communicate with the oil through an upwardly curved pipe extending from their lower ends. Reference has been directed by the Comptroller to Specifications 322,534, [Class 38 (ii)], and 413,702, [Group XXXVII].