baber/WOPTO huggingface dataset:
Patent GB-707375-A (GB)
Title: Improvements in or relating to stop motions for looms for weaving
IPC: D03D39/18
Filed: 1949-07-01
Abstract: 707,375. Stop motions for looms. WILSON & LONGBOTTOM, Ltd., and PORTER, I. S. July 3, 1950 [July 1, 1949], No. 17415/49. Class 142(1) A stop-motion for a pile carpet loom weaving two fabrics face to face is operated when a belt carrying a pile cutting knife becomes slack or breaks. A belt 1 carrying the knife passes over a pulley 3 which is mounted on a rod 4. The belt is tensioned by a spring 6. A contact 9 is mounted on, but insulated from, a bracket 5 and when the belt breaks or slackens the spring moves the pulley 3 and rod 4 until a stop 8 engages the contact 9, thereby completing an electric circuit and stopping the loom.
Patent GB-116035-A (GB)
Title: Improvements in Door Checks and Closers.
Inventor: BARDSLEY WILLIAM
IPC: E05F3/16
Filed: 1917-11-26
Abstract: 116,035. Bardsley, W. Nov. 26, 1917. Operating doors by springs; checks. - Relates to appliances of the kind comprising torsional coiled spring devices carried by the door, jointed lever connexions with the door frame, braking - arrangements to check the violence of the action when closing the door, and brake release means acting before the final closing of the door. The brake band 36 is connected to the ends of a two-armed lever 38 fulcrumed at the end of a rod 41 adjustable longitudinally along the lever 14. The two arms 39, 40 of the lever 38 are of unequal length, so that when the door is being opened, the brake hand is automatically slackened, and when being closed the band is tightened. An adjustable cam-piece 48 carried by the cover of the spring box forces outwards the short end 40 of the lever 38 just before the door becomes closed, to release the brake and the allow the spring to act with increased force to close the. door firmly and latch it. The lever arm 14 is connected up with the top of the spring through a sleeve 23, Fig. 4, carrying a notched arm 24, the lower end of the spring being fixed to the bottom of the spring box by lugs 28. The arrangement shown is suitable for a right-hand door. By reversing the lever 38, so that the short arm 40 is on the left, and reversing the double-ended pawl 35, and by shifting the cam-piece 48 to the gap 55, the appliance becomes suitable for a left-hand door.
Patent GB-1121704-A (GB)
Title: Fluid propulsion system
IPC: B63H11/12
Filed: 1965-07-16
Abstract: 1,121,704. Propelling vehicles and marine craft. HUYCK CORP. 16 July, 1965 [22 July, 1964], No. 17475/68. Divided out of 1,121,703. Headings B7H and B7V. [Also in Division F1] Apparatus for producing a fluid propulsion force in an ambient fluid medium comprises a tapered deflector 214, Fig. 3 positioned coaxially within an open-ended annular shroud, a shield 230 positioned adjacent the deflector so as to form a Coanda aperture 226 therewith, a parabolic surface 224 of the deflector continuously receding from the discharge axis of the aperture and the deflector, the shroud and the shield forming therebetween a convergent/ divergent nozzle. One or more such devices are suspended from a ship's hull by a pressurized fluid conduit 204 having a stabilizing fin 201 and a support 203 having a fin 205. The pressurized fluid may be gaseous e.g. steam or liquid, the latter may be in the vapour phase and it may assume its liquid phase in conduit 212. The fluid flowing from aperture 226 entrains a larger volume of ambient fluid flowing through inlet 208 or through optional vents 246 to provide the propulsive effect. The flow area of outlet 254 may be varied e.g. by flaring conically outwards. The device may be used in marine vessels and vehicles such as automobiles and aeroplanes.
Patent GB-1473628-A (GB)
Title: Control system for automatic transmission
IPC: F16H59/78
Filed: 1975-04-28
Abstract: 1473628 Change speed control NISSAN MOTOR CO Ltd 28 April 1975 [23 May 1974] 17601/75 Heading F2D In a motor vehicle having a thermal reactor for burning toxic wastes in the exhaust, and an automatic transmission controlled by a shift valve 24 operated by governor pressure 22 and throttle pressure 30 which increases with reduction in intake depression 46, the load chamber 44 of the throttle valve 26 communicates with engine intake 46 through a solenoid valve 60 which, in response to low temperature of engine coolant, oil or choke thermostat, is shifted to break a normal-temperature communication between the chamber 44 and intake 46 and exhaust the chamber 44, producing full line pressure 28 at throttle delivery 30, thereby raising the shift speeds. Thus even if the vehicle is driven off without the usual warm-up period, it will remain in first ratio to a high enough speed to maintain exhaust gas temperature, causing rapid heating of the thermal reactor.
Patent GB-1092875-A (GB)
Title: Industrial lift trucks
IPC: B66F9/18
Filed: 1965-04-27
Abstract: 1,092,875. Vacuum gripper attachments for lift trucks. EATON YALE & TOWNE Inc. April 27, 1965 [April 30, 1964], No. 17622/25. Heading B8H. A vacuum gripper attachment for the lifting carriage of a masted lift truck comprises a pair of laterally spaced vacuum cups 11, resiliently mounted on an arm 13 by means of bolts 26, nuts 27 and compression springs 28 which arm is pivoted about a vertical axis 15 on a frame 14, and a friction pad 32. A pad 24 having a high coefficient of friction is bonded to the back plate 23 of each cup which is provided with a bracket 29 carrying a roller 30 running on the top surface of the arm 13. In operation the mast 18 is tilted forwardly and the cups 11 are brought into engagement with the vertical surface of a load L, thereby opening sensing valves 22 to apply vacuum to the cups. The mast is then tilted rearwardly and the lifting carriage is raised whereby the load is brought into engagement with the friction pad 32 to resist downward slipping of the load relative to the cups. In a second embodiment, Figs. 6-10 (not shown), a pair of horizontal arms (38, 39), each resiliently supporting a pair of vacuum cups (34, 35), are pivoted about substantially vertical axes to the ends of an upright arm (40) pivoted about a horizontal axis (42) on a frame (41) secured to the lifting carriage. The arm (40) is telescopic, whereby the distance between the cups (34, 35) may be varied, and friction pads (36, 37) are provided on the frame (41).
Patent GB-199604-A (GB)
Title: Improvements in and relating to meat and like slicing machines
IPC: B26D1/143
Filed: 1922-06-27
Abstract: 199,604. Campbell, A. June 27, 1922. Variable-speed gearing.- In a meat slicing- machine, a two-speed gear, included in the tablereciprocating mechanism, comprises a worm E, Fig. 4, engaging with worm-wheels S, F of different radii and a sliding clutch T connecting either worm-wheel to the spindle G. In a modification Fig. 8, either of the worm-wheels S, F axe clutched to the spindle G by a pin G<3>, slidable in a slot in the spindle G by means of the non-rotatable, spring-pressed rod Z, cam V<1> and rod V, the pin engaging a. recess in a downwardly extending collar on the wheel S or in an upwardly extending collar on the wheel F. The collars are spaced by a block T.
Patent GB-163054-A (GB)
Title: Improvements in mechanism for breech loading guns
IPC: F41A1/08
Filed: 1916-12-11
Abstract: 163,054. Hamilton, B. T. Dec. 11, 1916. Ordnance design; breech mechanism.- The rear barrel G of a non-recoil gun is mounted by screwthreads F<2> in a swinging carrier F so that, by rotating the rear barrel in the carrier, the seal between the front and rear barrels is broken, further rotation causing the carrier and rear barrel to swing aside about the axis of the eccentric shaft E to disengage a rib F<1> on the carrier from a recess in the breech-piece B. The rear barrel carries an operating-handle H which, after the unscrewing movement, becomes latched to the carrier so that the same handle serves for swinging the carrier aside. During this swinging movement, an extractor L acts on the cartridge case J and the firing-pin N is cocked into engagement with a sear N<2> by links R<1>, R connected to the shaft E and acting on a lever Q. The lever Q has a finger-piece Q<1 >for re-cocking by hand in case of a miss-fire. On inserting a fresh cartridge, a stud J<1 >on the case enters a recess A<1> in the breech-chamber to ensure correct location of the percussion cap opposite the firing-pin N. The cartridge, after insertion, is retained by a spring bolt M', and is forced home when the breech is closed by a reverse operation of the handle H, The trigger mechanism, which swings with the carrier, comprises a trigger T<4> connected by a sliding bolt T<3> to the lower end T<2> of a rocking- lever, the upper end I of which swings into a recess S<3> in a sliding firing-rod S when the breech is closed. The hand-lever H has an arcuate projection H<4> which prevents rearward movement of the rod S to release the sear except when the breech is closed and locked. The trigger may be locked against movement by a rotary bolt T<6>.
Patent GB-797089-A (GB)
Title: Improvements in or relating to variable-ratio tranmissions
IPC: F16D67/00
Filed: 1955-06-21
Abstract: 797,089. Rotary pumps. BORG-WARNER CORPORATION. June 21, 1955 [June 21, 1954], No. 17907/55. Class 110 (2). [Also in Groups XXIV and XXXIV] Delivery pressure 103 of a pump 75 of the sliding-vane eccentric rotor type supplying an automatic transmission (see Group XXIV) on a vehicle, is maintained at a normally constant 80 lb. p.s.i. by a spring-loaded regulator valve 82, which also supplies delivery pressure or exhausts alternately lines 105, 106 connected to chambers on opposite sides of the pump body 94 to adjust the latter to positions of different eccentricity in a fixed member 75 in which the body is radially slidable. A spring 98 provides an initial bias towards maximum eccentric position. During running in reverse in the transmission, the selector-valve pressurizes a line 126 increasing regulator-valve loading to double the normal delivery pressure.
Patent GB-770143-A (GB)
Title: Device for imparting a reciprocating movement to a power driven circular saw
IPC: B27B5/18
Filed: 1955-06-21
Abstract: 770,143. Sawing. IRION, W. June 21, 1955, No. 17925/55. Class 145 A circular saw 1 and driving motor 2 are mounted on a carriage 3 which is traversed along a table 15 by at least one cable 10 attached to the carriage and wrapped round a drum 9 driven by a pinion 8 and a a rack 7 oscillated by pistons 12 in a hydraulic cylinder 13. The carriage has grooved rollers 4 engaging circular rails 5 and 'the cable passes over rollers 11. The hydraulic control valve is operated by hand or foot or automatically.
Patent GB-377388-A (GB)
Title: Improvements in power transmission and speed change mechanism
IPC: F16H33/08
Filed: 1931-06-20
Abstract: 377,388. Variable - speed gearing. SHOUCAIR, E., Rue Emad-Eddine, Cairo, Egypt. June 20, 1931, No. 17938. Convention date, June 26, 1930. [Class 80 (ii).] Gearing automatically varying with the load comprises centrifugal masses M connected by chains E to cranks D on a load shaft A<1>. The masses M are carried round by a casing C fast on a driving-shaft A and are radially movable therein. In the arrangement shown, the weights M slide freely in radial guides a in the casing. In a modification, the weights are constrained by being connected to the casing by pivoted links.
Patent GB-1385773-A (GB)
Title: Cooling system for sewing machine driving unit
Inventor: KLEINSCHMIDT J O
IPC: H02K7/102
Filed: 1972-04-18
Abstract: 1385773 Hand wheels SINGER CO 18 April 1972 [11 June 1971] 17963/72 Heading B7J [Also in Divisions D1 and H2] The hand wheel 52 of a sewing machine comprises a rim 53 and a hub 51 joined by skewed spokes 56 and inclined to the axis of rotation to provide fan blades which promote a current of air cooling the machine and its motor.
Patent GB-1062241-A (GB)
Title: Improvements in heat exchangers
IPC: F23M20/00
Filed: 1964-04-30
Abstract: 1,062,241. Plate type heat exchangers. BABCOCK & WILCOX CO. April 30, 1964 [May 1, 1963], No. 18000/64. Heading F4S. A cross-flow plate type heat exchanger for heating air by furnace waste gases comprises a series of parallel, spaced, graphite plates 50 arranged in plate packs 33 individually resiliently supported between frames 36 and 37, formed of angle members 60, 70 and T-section members 61, 71, the plates being bonded to and separated by end plates 51, 52 defining parallel gas and air flow paths extending perpendicular to each other. Four adjustable spring-loaded ties 38 interconnect the frames 36, 37 of each platepack and resilient sealing material is interposed between the ends of the packs and the frames in spaces (48), Fig. 10 (not shown). The plate-packs are bolted between upper and lower support structures (40) and (34), Fig. 2 (not shown), and gaps (42), Fig. 10, formed between the plate-packs are blocked off by the horizontal plate (64) of an upper cross-member (63) to prevent the flow of the furnace waste gases between the platepacks. A bellows expansion joint (41) allows relative movement between the heat-exchanger and gas ducting.
Patent GB-1345414-A (GB)
Title: Rock cutting bits and equipment using such bits
IPC: E21C35/18
Filed: 1971-05-28
Abstract: 1345414 Rock cutting bits ANGLO-TRANSVAAL CONSOLIDATED INVESTMENT CO Ltd 28 May 1971 [4 June 1970] 18008/71 Heading E1F A rock-cutting bit has a slug of hard cutting material, a sleeve circumferentially constraining the slug and being of substantially the same length as the slug and means permitting of the bit being releasably secured in the holder. Preferably the slug 8 has a blunted cutting edge 9 and is of tungsten carbide, the sleeve 10 is of metal and is shrunk around the slug or, when formed to receive a tapered plug of hard material, is filled by pressing of the material into the sleeve. A groove 3 may be provided in the sleeve for co-operation with a pin 4 provided in the for releasably securing the bit in the holder, which may be mounted in a rotor for limited pivotal movement with respect to the rotor.
Patent GB-1434009-A (GB)
Title: Liquid dispensers
IPC: G07F15/12
Filed: 1972-04-19
Abstract: 1434009 Liquid dispensers J DIGGINS 19 April 1973 [19 April 1972] 18012/72 Heading G4V A liquid dispenser comprises an electrically operable valve in the liquid supply line, a relay 13 operative to open said valve and a timer 2 to maintain the relay-operative for a predetermined adjustable time period. The embodiment described is coin-freed and includes a switch 1 closed by an inserted coin to energize the relay coil and initiate a cycle of predetermined length of the adjustable electronic timer 2. Contacts 12 of the relay control a solenoid 14 to close the coin entry opening, and contacts 13 control the valve and an indicator lamp. A counter 15 counts the number of coins inserted.
Patent GB-546743-A (GB)
Title: Improvements in and relating to yarn intended for incorporation with rubber in tyresand other goods and the manufacture thereof
IPC: B29D30/38
Filed: 1940-12-26
Abstract: 546,743. Tyre yarns &c. DUNLOP RUBBER CO., Ltd., DUNLOP COTTON MILLS, Ltd., ANDERSON, J., and LANGSTRETH, M. Dec. 26, 1940, No. 18140. [Class 120 (iii)] A yarn for incorporation with rubber in tyres &c. is formed by twisting a cotton roving to a high degree, i.e. with a twist factor or multiplier of at least 9, and without draft and then twisting together a number of such rovings in the same or in the opposite directions; water or a solution of wetting agents may be applied at any stage in the manufacture and the yarn may be subsequently stretched. In an example a cotton roving of 4.5 hank and twist of 3.6 turns per inch is twisted to 22 turns per inch while a solution of a wetting agent is applied before the roving reaches the delivery rollers of the twister; 3 of the rovings are then twisted together 8 turns per inch and stretched until the yarn has an extension of the order of 9 per cent. at 10 lbs.
Patent GB-1313881-A (GB)
Title: Discharge valve assembly for pressurised dispensing container
IPC: B65D83/16
Filed: 1970-04-16
Abstract: 1313881 Discharge valve assembly RAION YUSHI K K 16 April 1970 [18 April 1969 (3)] 18227/70 Heading F1R A discharge valve assembly comprises a valve stem 3, a nozzle portion 6 mounted thereon and having a nozzle portion 64 therein, a first valve for flow communication between the interior of a pressurized container on which the valve is mounted and an axial passage 31 in the valve stem, via a valve member 4 which is deformed away from valve seat 37 on the valve stem, a second valve for flow communication between the axial passage 31 and atmosphere, both valves being normally biased towards their closed positions, the biasing force on the first valve being stronger than that on the second valve. Fig. 2 shows the nozzle portion axially movable against a spring 8 to align groove 36 with nozzle 64 so allowing flow discharge through the second valve from passage 31 through grooves 65, 63, 35 to nozzle 64. In a second embodiment Fig.3 (not shown) push button (105), included in the nozzle portion 3, is movable relative thereto on spring (108) to communicate conduit 152 and nozzle (162), Fig. 5 shows an assembly where nozzle/portion 206 tilts on the valve stem to communicate conduit 39a and nozzle 262; a return spring 208 closes the valve on removal of the tilting pressure. A fourth embodiment Fig.8 (not shown) allows the nozzle portion to be spring mounted on the valve stem such that an enclosed space exists between the top of the valve stem and the nozzle portion; the volume of this space increases on valve closure to reduce the pressure of any fluid entrapped.
Patent GB-146341-A (GB)
Title: Vulcanizing and like moulds
IPC: B29D30/06
Filed: 1920-07-02
Abstract: 146,341. Goodyear Tire & Rubber Co., (Assignees of State, W. C.). March 11, 1919, [Convention date]. Vulcanizing-moulds.-Moulds, especially those for vulcanizing tyres, consist of sections 5, 6, pressed together by clamping-members 9, 10 forced on to wedge surfaces 7, 8, fastening-means being provided for securing the clamping-members together. The clamping-members are forced together by external pressure applied in a direction coinciding with the plane of the mould sections.
Patent GB-918374-A (GB)
Title: Improvements in the manufacture of zirconium oxide
IPC: C01G25/02
Filed: 1960-05-24
Abstract: Phosphorus-free zirconium oxide, suitable for the manufacture of blue ceramic stains, is prepared by sintering zircon ore with the stoichiometric quantity or a slight excess of sodium or potassium carbonate, extracting the resulting sodium or potassium zirconyl silicate with a solution of sodium or potassium hydroxide and thereby removing phosphorus as soluble sodium or potassium phosphate, decomposing the sodium or potassium zirconyl silicate by treatment with hydrochloric acid, and subsequently converting the resulting zirconyl chloride into zirconium oxide by treating it with sulphuric acid and heating the resulting precipitate. Alternatively the ore may be sintered with an amount of sodium or potassium carbonate in excess of the stoichiometric quantity by at least 15% by weight, the resulting sodium or potassium zirconyl silicate extracted with water to remove sodium or potassium phosphate and then the acid decomposition proceeded with, as before.  Blue ceramic stains may be manufactured by heating together a mixture of zirconium oxide, silica, ammonium metavanadate and sodium fluoride as described in Specification 625,448.  Specification 627,493 also is referred to.
Patent GB-166042-A (GB)
Title: Improvements relating to angle plates for use on machine tools
IPC: B23Q3/10
Filed: 1920-07-02
Abstract: 166,042. Enderby, G. H. July 2, 1920. Work-holders; drilling.-A work-holder for machine tools consists of an angular portion a for receiving the work, formed at each end with a flange b integral with a base-plate d. One flange b is preferably broader than the other, and this flange and the base d are formed with holes and slots h, i for securing-bolts. The strap e, which holds the work, is clamped by a V-shaped bolt f and nuts g. A perforated attachment k, for guiding a drill, is formed with a stem, passing through a hole in the strap e and secured by a nut. The hole in the attachment k can be fitted with bushes of various sizes.
Patent GB-1338187-A (GB)
Title: Welding current source
IPC: B23K9/02
Filed: 1972-04-20
Abstract: 1338187 Arc welding systems MESSER GRIESHEIM GmbH 20 April 1972 [20 April 1971] 18394/72 Heading H2H An arc welding system comprises means whereby the voltage across the electrode and workpiece is reduced when an arc is not struck. An electrode 14 and workpiece 15 is supplied from an A.C. source 1, 2 by way of a transformer 4 and a pair of back-to-back connected rectifiers 6, 7. When an arc is not struck between the electrode and workpiece relay 10, and hence relay 8, are not energized, the rectifier 7 thus being disconnected. In this case the output of the transformer 4 is half-wave rectified and the voltage across the electrode and workpiece does not exceed a safe value. When the electrode strikes an arc with the workpiece, relay 10 is energized. Closure of contacts 11 causes energization of relay 8 from a winding 5 on the transformer 4. Contact 9 thus closes to connect rectifier 7 into the system, whereby the voltage across the electrode and workpiece is now the full-wave rectified transformer output voltage. Resistor 12 and capacitor 13 provide smoothing. In other embodiments, the rectifier 7 is replaced by a thyristor and the relay 8 dispensed with. A high frequency impulse system may be provided for starting the arc and a contactor 3 in the A.C. supply may be opened automatically if the arc voltage assumes an excessive figure. The output of the transformer 4 may be rectified and a changeover switch provided whereby welding may be carried out using either A.C. or D.C. When the welding apparatus is a plasma arc device means are provided whereby an auxiliary arc is struck between the gas nozzle and the workpiece.
Patent GB-477548-A (GB)
Title: Improved folding box
IPC: B65D5/30
Filed: 1936-07-03
Abstract: 477,548. Folding cardboard boxes. HUNT, R. July 3, 1936, No. 18515. [Class 18] A folding rectangular box for pastry, cakes, and light articles has slits 2 in the ends to receive hooked ends of flaps 3 carried by the sides, tongues 6 on the lid engaging behind the flaps and the ends of a flap 9 engaging slits in the side. The box is preferably made from a one-piece blank, with sides and ends upturned to form a tray, and flap 9 may be omitted or may be of different shape.
Patent GB-697734-A (GB)
Title: Improvements in and relating to the heat treatment of metals
Inventor: ROBIETTE ALFRED GORDON EVANS
IPC: C21D1/74
Filed: 1950-07-25
Abstract: 697,734. Heat-treating furnaces. METALLURGICAL ENGINEERS, Ltd. July 20, 1951 [July 25, 1950], No. 18556/50. Class 51(ii) [Also in Group II] In a tunnel-type heat-treating furnace' 10, Fig. 1, divided into two zones A and B by a baffle wall 13, a fluid fuel, e.g. coal gas, from pipes 18 is incompletely burnt with oxygen (or a mixture of oxygen and nitrogen containing more than 70 per cent oxygen) from pipes 19 at burners 16 to heat the zone A and produce an atmosphere which is substantially non-oxidizing at the temperature there reached. The partial combustion products pass under the wall 13 into the zone B and partially burn with oxygen or air from nozzles 20, again producing a non-oxidizing atmosphere. The intermediate combustion products from zone B pass up the flue 14 where they burn with air admitted at 21, around a heat exchanger 17 through which passes the coal gas supply to zone A. As is seen from Fig. 2, the billets entering the furnace are preheated to about 650‹C in zone B and heated up to a rolling or forging temperature of 1200‹C in zone A. The heat exchanger may be additionally used to preheat one or more of the metal billets, air, oxygen or oxygen-nitrogen mixture. Light oxidation in the second stage is permissible if the first stage is reducing or deoxidizing. Specifications 637,337 and 646,691 are referred to.