baber/WOPTO huggingface dataset:
Patent GB-1381629-A (GB)
Title: Jet-cutting machine
IPC: E21C25/60
Filed: 1972-07-10
Abstract: 1381629 Cutting by liquid jets ATLAS COPCO AB 10 July 1972 [8 July 1971] 32175/72 Headings B4B and B5L [Also in Division E1] A cutter, for rock, paper, plywood, plastics or asbestos, comprises a frame 12, to be fixed at least temporarily in position carrying a generator 22 for supplying fluid under pressure to a nozzle 30 to be emitted as a high velocity jet, the generator and nozzle being movable together relative to the frame 12. Two generators 22 are mounted on a head 20 which is reciprocated along slide beams 32 by hydraulic motor 46 which is reversed in response to limit valves 48. Each generator comprises a power piston 52 movable in a cylinder 24 and a coaxial ejector piston 54 of smaller area movable in a cylinder 56. The cylinders 24 are connected by conduits 58 to a valve 62 which connects them alternately to hydraulic fluid supply and drain conduits 64, 66 in response to means 86 detecting  the motion of tubes 74 carried by the pistons, and the stroke is preferably synchronized with the motion of the head 20. The tubes 74 are supplied with water, which is fed through bores 70 and non-return valves 72 to ejector cylinders 56, and thence through tubes 28 to the nozzles 30. The position of the nozzles is adjustable by means of nuts 90. Alternatively, Figs. 5, 6 (not shown), a generator (128), which comprises a double acting power piston (136) connected to two ejector pistons (138), is carried on cylinders (122) reciprocated on guide rods (120) mounted on the frame.
Patent GB-1352212-A (GB)
Title: Remote control telephone apparatus
IPC: H04M3/38
Filed: 1971-07-08
Abstract: 1352212 Automatic exchange equipment COM-U-TROL CORP 8 July 1971 [9 July 1970] 32214/71 Heading H4K A caller can gain a connection to a central substation, e.g. his office, through the telephone network and by means of a portable encoder transmit a first code signal to a transfer unit to cause an outgoing line to the exchange to be seized whereupon the caller can cause a call to be set up as if he were located at the central substation. The portable encoder generates tones which are used for causing seizure of the outgoing line, dialling and release of outgoing line alone or release of all connections to the transfer unit. As shown, the central substation is connected to the telephone system 30 through a plurality of lines of which 36, 38 are two. These two lines are interconnected by a transfer unit such that if line 38 is free a ringing signal on line 36, emanating from a call at a remote location 10, will cause trip ring-in 44 to operate. Cessation of ringing tone indicates to the remote caller that line 38 is available and a seizure tone consisting of frequencies f 1  and f 2  is transmitted through line 36. Detection of this tone by tone detector 46 causes the seize unit 48 to loop line 38 by relay contacts 128 and dialling tone is returned to the caller. Dialling is carried out on encoder 18 and bursts of tone f 1  are transmitted corresponding to the digits dialled at 20. These tones are detected and operate a relay 128 in dial-out unit 50 to provide loop disconnect pulses on line 38. When the call is finished tones f 1  and f 2  can be sent again which operates radial unit 52 to release and seize line 38 so that dial tone is again obtained and a further call can be made. Alternatively tones f 1  and f 3  can be sent to operate release circuit 54 which releases both lines 36 and 38. The encoder 18 is a portable battery operated device and uses a manually operated switch 22 for selecting which pair of frequencies are to be transmitted by loud-speaker 28 and received in the telephone equipment through handset microphone 14.
Patent GB-1121758-A (GB)
Title: Improvements in burners for gas heated appliances
IPC: F23D14/04
Filed: 1966-07-19
Abstract: 1,121,758. Gas burners. F. K. HIBY. 17 July, 1967 [19 July, 1966], No. 32283/66. Heading F4T. A gas burner A has a frusto-conical mixing chamber a with a through bore a<SP>1</SP> for the entry of air and one or more capillary bores a<SP>2</SP> adjacent to the smaller diameter of the chamber and extending tangentially thereinto for the entry of gas from a main B, the mouth of the chamber a forming the ignition surface and having tangential castellations a<SP>4</SP> for the entry of further air.
Patent GB-657527-A (GB)
Title: Improvements in playing courts and areas
IPC: E01C13/06
Filed: 1948-12-14
Abstract: The surface layer of a playing area such as a tennis court, playground, hard cricket pitch, running track, &c. is prepared by forming an emulsion of 5-25 per cent by volume of rubber latex and 95-75 per cent bituminous material and mixing the emulsion with stone chippings to form an aqueous dispersion which is laid on a suitable foundation to form when solidified a resilient and porous surface. The proportion of emulsion used is below that which would seal the pores in the surface layer.  The mixture including the chippings is screened on to a graded clinker or like bed.
Patent GB-1118748-A (GB)
Title: A device for stacking and un-stacking open-topped containers, in particular crates
IPC: B65G59/06
Filed: 1965-07-29
Abstract: 1,118,748. Stacking and unstacking machines; grippers for stacking containers. KUMAG A.G., and HOLSTEIN & KAPPERT MASCHINENFABRIK PHOENIX G.m.b.H. 29 July, 1965 [3 Aug., 1964], No. 32396/65. Headings B8C and B8H. In a device for stacking and unstacking opentopped containers, e.g. crates, metal tanks, cylindrical buckets &c., a number of pairs of downwardly opening jaws 5, Fig. 1, are arranged on a beam 1, each pair arranged to grip two adjacent containers 14 across their contiguous side walls 16. In one embodiment, four pairs of self-closing jaws 5 are arranged on a beam 1, Figs. 1, 2 (latter not shown), to pick up six crates 14, Fig. 5 (not shown), each jaw having a projection 15 which engages in the handle hole of the crate. The beam 1 may be guided along a vertical track for raising and lowering the crates by rope pulleys 3. As the device is raised the jaws 5 automatically close on the side walls 16 of the crates and when the crates have been deposited, e.g. on another layer of crates or on a pallet, the jaws are opened by operation of pressure cylinders and pistons 12. The jaws and beam may also be moved horizontally, if, e.g., the pulleys 3 form part of a travelling electric crane, or the beam 1 runs on horizontal rails. In a modification, a beam (17), Figs. 3, 4 (not shown), carries three pairs of jaws (18), for stacking layers of six crates (23) on a pallet (24), the beam being movable in vertical tracks (19) by a chain (20) and sprockets (21). In both embodiments, the beam 1, (17) may be held fixed, the stacking pallet and stacked crates being lifted up to the jaws. Alternatively, they may be provided with horizontal motion, a hoist at one end of the horizontal motion lifting a layer of crates up to the jaws, and a second hoist lifting the pallet to the level of the jaws at the other end of the horizontal motion.
Patent GB-485935-A (GB)
Title: A spring cushioning device
IPC: F16F3/04
Filed: 1936-11-27
Abstract: 485,935. Spring supports. PATTERSON, R. Nov. 27, 1936, No. 32487. [Class 108 (iii)] A spring cushioning device comprises layers of springs contained in the lower portion of a cylinder 1 and adapted to be compressed by a plunger 2 connected by rods 4 with a loadcarrying member 3 and acting on the uppermost spring layer A, the spring layers being separated by discs 6, 7 having cupped centre parts and rim portions, one layer of springs'A or C being seated on or beneath the rim of a disc and another layer B within the cupped centres of adjacent discs, alternate discs being reversed for this purpose. When the springs A, B have been stressed under load to a predetermined extent, the plunger and discs successively abut one another and the load is taken finally by the strong spring C which is prevented from being overloaded by the disc 6 abutting a rubber stop 5. Further spring layers D, E, co-operating with cupped discs, and a rubber pad 8 above the plunger resist recoil action of the device.
Patent GB-1153726-A (GB)
Title: Improvements relating to Incandescent Gas Fires
Inventor: TONGUE DENNIS
IPC: F24C3/00
Filed: 1965-08-30
Abstract: 1,153,726. Incandescent gas fires. VALOR CO. Ltd. 15 Aug., 1966 [30 Aug., 1965], No. 32576/65. Heading F4W. In an incandescent gas fire, the radiant panels 12 are illuminated by coloured lamp bulbs 18 to give a warm appearance even when no heat is being given out. The bulbs 18 may be switched on by a separate switch 31 or by a switch incorporated in the gas flow control knob 27 which may include a lost motion device.
Patent GB-192243-A (GB)
Title: Improvements relating to lorry cranes
IPC: B60G17/005
Filed: 1921-12-05
Abstract: 192,243. Cowans, Sheldon & Co., Ltd., and Pearson, J. B. Dec. 5, 1921. Jib cranes.-Arms f pivoted to the chassis of a lorry crane at g are locked by a spring pin i in the position shown in full lines when the crane is in use, and in the raised position when travelling. In the former position, the arms f bear on the wheels when the crane is slued over the side of the chassis, preventing further tilting of the chassis and too great loading on the springs c, and at the same time locking the vehicle wheels. When in the raised position, the arms f engage the rotatable bed e<1> of the crane and lock it against slueing when the vehicle is in motion. The bearing face of the arms f may be packed to compensate for wear of the wheel tyres. The chassis may be connected positively to the wheels or axles so that the unsprung part of the vehicle acts as a counterweight to prevent overturning. In Fig. 1 the connecting means consists of a pin k and slotted plate l on the chassis and spring support; in a modification, pivoted catches on the arms f engage with the wheels, or with loops attached to the wheels or axles, when the arms are lowered.
Patent GB-276872-A (GB)
Title: An improved engine and propeller group for aircraft
IPC: B64D27/00
Filed: 1926-12-24
Abstract: 276,872. Maye, J. F. Dec. 24, 1926. No. Patent granted (Sealing fee not paid]. Driving arrangements for screw propellers. - Relates to engine and propeller groups for aircraft wherein the crank case drives one propeller whilst the oppositely moving crank - shaft drives another propeller and consists in the crank-shaft driving a variable-pitch traction propeller m whilst the crank case of the engine t drives a lifting propeller n through universal joints o. Either propeller drive may be braked and a clutch employed for the lifting propeller.
Patent GB-1269212-A (GB)
Title: Liquid spray nozzles
Inventor: GREENWOOD KENNETH
IPC: F23D11/38
Filed: 1968-07-09
Abstract: 1,269,212. Spray-producers. JOSEPH LUCAS (INDUSTRIES) Ltd. 1 July, 1969 [9 July, 1968], No. 32736/68. Heading B2F. [Also in Division F4] A fan-shaped liquid spray, e.g. in burners for gas turbine engines, is produced by a nozzle formed from two transverse diametral grooves 12 and 13, Figs. 1 and 2, and a disc 14 positioned such that both ends of the internal groove 12 communicate with the interior of the conduit 10. Atomisation of the liquid is assisted by the imposition of a similar flat fan-shaped spray of air generated by nozzles 18 within an air gallery 16, Fig. 3.
Patent GB-172635-A (GB)
Title: Improvements in fine-calipering apparatus, intended more particularly for grinding machines
IPC: B24B49/04
Filed: 1921-12-06
Abstract: 172,635. Maag, M., and Maag Gear Wheel & Machine Co., Ltd. Dec 7, 1920, [Convention date]. Wheel apparatus; gauges.-Callipering-apparatus, intended more particularly for grinding- machines and comprising a gauge or calliper which only touches the work 7 at intervals, is characterized by the fact that when the work has attained predetermined dimensions circuits are closed, the currents passing through relays of constant mechanical and electrical resistance, each of which actuates a signal or a stopping device. As shown, a conducting support 1 carries two casings 2, 3 fitted respectively with the sliding calliper pin 4 and with relays 40, 41 and preliminary and final signal lamps 42, 43. The pin works through a solenoid 5 and carries finely adjustable preliminary and final contacts 14, 15 for engaging with a spring-pressed contact 22 and a fixed contact 23 respectively. In order to take up shock when the pin moves forward it is fitted with a piston 11 working within a fixed part 12 to form an air damping-device,. An india-rubber sleeve 30 connecting the pin to the housing serves to keep out dust and water. Upon each reciprocation of the grinding-wheel slide, a switch 61, 62 is temporarily closed so that the solenoid 5 is energized to draw forward the pin into contact with the work, and when the operation is nearing completion, the forward motion of the pin brings the contacts 14, 22 into engagement, so that a coil 40 is energized and actuates a hammer lever 46 whereby an obliquely standing hinged plate 44 is thrown over to close the circuit through the preliminary signal lamp 42. Subsequently, when the work has been brought to the desired size, the engagement of the contacts 15, 23 closes the circuit of the relay 41 and the throwing-over of the second hinged plate 45 then lights up the final lamp 43. Hand-wheels 54, 55 enable the operator to restore the hinged plates to upright position again. The contacts 14, 15 may be so adjusted that, if upon the appearance of the preliminary signal the feed of the grinding-wheel is stopped, sufficient further grinding of the work will be effected to light up the other signal.
Patent GB-331168-A (GB)
Title: Improvements relating to spinning leads or sinkers for use by anglers
IPC: A01K95/00
Filed: 1929-10-29
Abstract: 331,168. Martin, A. E. Oct. 29, 1929. Leads or sinkers.-A spinning lead comprises a sinker 1, a non-rotary eye 2 for attachment to the line 4 and connected to the lead at a point above the centre of gravity, and a swivel eye 5 which is mounted on ball bearings 8 within the lead.
Patent GB-371904-A (GB)
Title: Improvements in tractor wheels
IPC: B60B15/02
Filed: 1930-11-01
Abstract: 371,904. Vehicle wheels. DAWE, J., 38, Mayfield Road, Sutton, Surrey, and BARRELL, M. E. G., 17, Manson Place, Queens Gate Road, London. Nov. 1, 1930, No. 32881. [Class 144 (i).] Wheels for tractors and the like in which the rim is formed by a series of edge-on sinuous rings a, such as described in Specification 263,965, [Class 144 (i), Wheels for vehicles], are fitted with cleats f secured to some or all of the side faces of the rings so arranged that the bearing surfaces increase as the wheel sinks into the ground. In the construction shown, the cleats are of wedge-section with the apices at, or adjacent, the rim periphery. Specification 341,035 is also referred to.
Patent GB-1213255-A (GB)
Title: Process for the acetylation of activated ch groups
IPC: C07C49/12
Filed: 1969-06-30
Abstract: 1,213,255. Acetylation. WACKER-CHEMIE G.m.b.H. 30 June, 1969 [28 June, 1968], No. 32923/69. Heading C2C. Compounds HCX 3  where X represents -CO-Y, -CN or one X is a hydrogen atom, and Y is OR, -N(R) 2  or R, and R is a branched or unbranched, saturated or unsaturated optionally substituted mono- or bivalent aliphatic or araliphatic radical (1-8C) or is anunsubstituted or substituted aryl radical are acetylated by reacting with ketene in the presence of an alkali metal salt of a carboxylic acid and/or a sulphonic acid at between -10‹ C. and 200‹ C. The preparation of triacetyl methane from acetylacetone, 3-acetoxy-crotonic acid ethyl ester and diacetyl acetic acid ethyl ester from acetoacetic acid ethyl ester, α- cyano-#-acetoxy-2-butenone acid methyl ester from cyanoacetic acid methyl ester, diacetylacetic acid allyl 2 - ethyl - hexyl and benzyl esters from the corresponding acetoacetic acid esters is described. The catalysts may be the salts of formic, acetic, chloracetic, propionic, butyric, isobutyric caprylic, capric, lauric, isotridecane and stearic acids or sulphoacetic, chlorosulphoacetic and sulphobenzoic acids and the process may be continuous or discontinuous in an inert solvent.
Patent GB-342304-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F01L5/10
Filed: 1929-10-30
Abstract: 342,304. Oil engines. RICARDO, H. R., 21, Suffolk Street, Pall Mall, London. Oct. 30, 1929, No. 32963. Addition to 261,435, [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for]. [Class 7 (iii).] A fuel-spraying device D is disposed in the circumferential wall of a combustion chamber B, and its fuel emission orifices D<2>, D3 are disposed to produce jets in substantially opposite directions in a vertical plane. The mean direction of the jets may be parallel to or inclined to the cylinder axis at an angle of between 30‹ and 45‹. A series of jets may comprise two or more sprayers spaced apart circumferentially. Different angles of inclination towards the cylinder axis may be used for the upper and lower jets. Separate sprayers may be employed for producing the upward jet or series of jets, these being disposed either in the same vertical plane or displaced circumferentially from those producing the downward jets; in the latter arrangement the sprayers may be located in the same transverse plane. When using two or more separate spraying devices these may be located at the ends of the combustion chamber, the jets being oppositely directed. In any of the above arrangements the direction of the jets may be inclined to a vertical plane containing the axis of the combustion chamber thus providing a tangential component which may be in the same direction as, or opposite to, the direction of rotation of the charge in the combustion chamber. The upper and lower series of jets may have tangential components acting respectively in different directions. Specifications 294,704, 300,686, and 333,638, [all in Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for,], are referred to.
Patent GB-965762-A (GB)
Title: Process of manufacturing dialkyl ketenes
IPC: C07C49/88
Filed: 1960-09-26
Abstract: Dialkyl ketenes of formula RR1C=CO, where R and R1 are each C1- 4 alkyl, are prepared by passing an anhydride (RR1CHCO)2O through a reaction zone at 400-700 DEG C. Reduced pressure or an inert gas may be used. Preferably the residence time is such that 10-70% of the anhydride is converted to ketene. The reaction products may be rapidly cooled to condense out any unreacted anhydride, and then further cooled (to not below 20 DEG C. in the case of dimethylketene) or passed directly into contact with a further reactant such as formaldehyde (producing an a ,a -dialkyl-b -propiolactone). Examples prepare dimethyl ketene, methyl ethyl ketene, diethyl ketene and butyl ethyl ketene. Dimethyl ketene when allowed to dimerise produces tetramethyl 1,3-cyclobutane-dione. The acids RR1CHCOOH are obtained as by-products. Specification 668,280 is referred to.
Patent GB-1346536-A (GB)
Title: Method and device for producing a cigarette filter unit
IPC: A24D3/02
Filed: 1972-07-14
Abstract: 1346536 Tobacco-smoke, filter manufacture F J BURRUS & CIE 14 July 1972 [16 July 1971] 33005/72 Heading A2C The Specification describes the same apparatus as that described in relation to Figs. 1 to 8 of Specification 1,332,423, for making composite tobacco-smoke filters of the kind having a fluent solid filter material between two fibrous filter elements, but the claims relate to the sealing of the filter cover strip to the filter elements around the whole of its periphery.
Patent GB-383438-A (GB)
Title: Improvements in or relating to reels for fishing rods
IPC: A01K89/01
Filed: 1931-11-28
Abstract: 383,438. Fishing reels. RUDGE, A. E., Unity Works, Redditch, Worcestershire. Nov. 28, 1931, Nos. 33008/31 and 3924/32. [Class 48.] The spindle pin k of a stationary drum fishing reel is provided with a roller m which engages a cam groove n in the gear wheel h. The linetensioning device comprises a nut y which presses a loose sleeve r, carrying the drum a against a spring washer x. The other side of the washer bears against a ratchet t. A divided ring z is slipped on to the drum when a short line is employed.
Patent GB-338706-A (GB)
Title: Improvements in machinery for the handling of biscuits and the like articles
IPC: A21C15/00
Filed: 1929-10-31
Abstract: 338,706. Vicars, Ltd., T. & T., and Crosland, E. M. Oct. 31, 1929. Discharging devices for endless conveyers.-A device for removing biscuits from the pans 7 of an oven conveyer 1 comprises a flexible stripping- plate 9 and a rotary brush 10 which sweeps the biscuits up the plate 9 on to the removal conveyer 12. The stripper 9 is attached to a plate 11, Fig. 4, mounted on a shaft 14, the latter, together with the brush 10, being mounted in a frame fitted with rollers 16 which engage with cams 17 driven from the driving-shaft 18 of the conveyer 1. The cams 17 are so shaped that the brush 10, stripper 9, and the front end of the conveyer 12 are lifted at the appropriate intervals to prevent jamming by entry of the stripper into the gaps between the pans 7. The conveyer 12 delivers to a further conveyer 13 which is driven at a slower speed so that the biscuits will be deposited thereon in stacked formation
Patent GB-770897-A (GB)
Title: Improvements in or relating to textile hopper feeding machines
Inventor: DOBSON JAMES PATRICK
IPC: D01G23/04
Filed: 1953-11-30
Abstract: 770,897. Hopper feeders. HAIGH & SONS, Ltd., J. Feb. 28, 1955 [Nov. 30, 1953], No. 33141/53. Class 120 (1). [Also in Group XVIII] To compensate for variations in the specific gravity of weighed amounts of fibrous material fed to a carding machine from a hopper-feeder, the latter comprises, in addition to the usual hopper feeding a scale-pan via a spiked endless conveyer, a second hopper feeding the first via a second conveyer. The arrangement is such that the first conveyer is stopped in the usual manner when the scale-pan contains the desired load, and the second conveyer is stopped if the scale-pan " weighs " early in the cycle of the tipping mechanism, but is maintained in motion if the scale-pan " weighs " late in the said cycle. Both conveyers are belt-driven, and are stopped by shifting the belts from " fast " to loose pulleys. Thus, in Fig. 2, depression of the scale-pan 11 under a desired load causes the cranked end 31 of the scale-pan balance arm 27 to disengage a bowl 39 on member 41 fixed to a weighted catch 33, the latter being thus released to engage a belt-driven ratchet wheel 43 (as shown) thereby turning a cranked lever 37 to which catch 33 is pivoted, and releasing a lever 47 fixed to a spring-urged rod 15. The latter then rotates its fork 17 to shift the driving belt 9 of the first conveyer from the "fast" pulley (not shown) to a loose pulley 21. Depression of the scale-pan also permits its pinion 12 to engage with a rotating toothed segment 13, thereby causing tipping of the pan, after which the mechanism is reset by a face cam 49 which coacts with a hammer-headed lever 51 fixed to rod 15 so that the latter rotates fork 17 to replace belt 9 on the " fast pulley"; simultaneously, a cam 55, driven by a belt 57 from the shaft of quadrant 13, coacts with a cranked lever 53 to raise the weighted end 35 of catch 33, thus allowing member 31 to re-engage with bowl 39. A hinged flap 56, Fig. 4, fixed to a member 57 loosely pivoted on rod 15, remains lowered in the path of movement of the hammer-headed lever 51 if the scale-pan " weighs early in the cycle of the tipping quadrant 13 ; member 57 is therefore turned to operate a connecting rod 63 which in turn operates mechanism for stopping the second conveyer. If, however, the scalepan " weighs " late in the cycle, a cam 59 on the shaft of quadrant 13 lifts the flap 56 so that movement of lever 51 does not operate rod 63 to stop the second conveyer. The mechanism for stopping the second conveyer (not shown) is substantially the same as that described, except that a centrally-pivoted slotted lever 61, Fig. 5, replaces the member 41, and catch 33 is retained at its notched end by a roller 69 moving in the upper slot of lever 61. This modified mechanism may also be used for the first conveyer. A brake comprising a series of leather pads retains rod 63 in any position to which it is moved.