baber/WOPTO huggingface dataset:
Patent GB-347643-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D1/10
Filed: 1929-10-15
Abstract: 347,643. Centrifugal pumps. TAMINI, M., 2, Piazza Molozzo da Forli, Milan, Italy. Oct. 15, 1929, No. 31352. Convention date, Oct. 15, 1928. Void [Published under Sect. 91 of the Acts]. [Class 110 (i).] Two impellers or groups of impellers of a centrifugal pump are arranged to act on the fluid in series or in parallel by means of an externally operated valve M which is arranged co-axially with the driving shaft of the pump. In the closed position of the valve shown in the Figure suction chambers A1, A2 are connected to delivery chambers B1, B2 respectively, while with the valve in the open position fluid is drawn only from the suction chamber A2 which is connected to the delivery chamber B2. In the closed position the fluid from A1 passes to the runners d1, f1 and thence to B1 while that from A2 passes to the runners d2, f2 and thence to B2. In the open position the fluid from A2 passes to the runners d2, f2, through the ducts h2 to the chamber N, and thence through the runners d1, f1. In an alternative arrangement of the pump the suction chambers A1, A2 are arranged at opposite ends of the pump. In both arrangements the delivery ports are at the same end of the pump.
Patent GB-257147-A (GB)
Title: Improvements relating to appliances for sawing marble, granite and other stone
IPC: B28D1/06
Filed: 1925-12-12
Abstract: 257,147. Soc. Anon. Ateliers Heuze, Malevez, et Simon RÚunis. Oct. 26, 1925, [Convention date]. Sawing.-The raising and lowering mechanism of a stone-cutting sawing-machine includes an electromagnet applied to an operating or controlling member to cause the automatic raising of the frame from the work in case of a stoppage of the motive power. Bevel wheels A, B, loose on a shaft E, are actuated by a bevel wheel J driven from a belt wheel D. Either of the wheels A, B may be coupled to the shaft by a key operated by a lever F so that the shaft may be rotated in either sense to raise or lower the saw frame rapidly into or out of cutting position. In addition, the shaft carries a worm wheel C driven by a worm K carried by a toothed wheel K<1> rotated by a pawl on a rod X which is jointed to a rod Y actuated by a cam on the shaft of the wheel J. The wheel C can thus lower the frame gradually as the cutting proceeds. The lever F is normally retained in the position shown by an electromagnet G pulling against weights H; in this position the wheel C is coupled to the shaft. If the current fails, the lever uncouples the wheel C and couples the wheel B; the inertia of the driving wheel D causes the frame to be lifted a short distance before the motion ceases.
Patent GB-1432208-A (GB)
Title: Television receiver cabinet with a picturetube mounting device
IPC: H04N5/645
Filed: 1973-07-02
Abstract: 1432208 Television INTERNATIONAL STANDARD ELECTRIC CORP 2 July 1973 [4 July 1972] 31396/73 Heading H4F A television tube is mounted in a receiver cabinet using four angle brackets 1 each provided with a bolt 9 for mounting the tube, at least one surface 2 of each bracket having lugs 3 which engage one of three grooves 11, 12, 13, Fig. 3, in a cabinet wall 10 to locate the bracket, nails, staples or wire clamps securing the bracket to the wall 10. The surface 4 of the bracket may also be provided with lugs 3 if the bracket is to be mounted in a corner of the cabinet (Fig. 4, not shown) or may be provided inside or ouside the bracket with a slot 5 formed by a flange 6, which engages, in use, a stem (21, Figs. 5, 6, not shown) projecting from one of the cabinet walls. The brackets may be of plastics material. The cabinet may be a folding-frame-type cabinet, the brackets serving also to secure the sidewalls in place.
Patent GB-1491324-A (GB)
Title: Apparatus for separating floating matter from a liquid
IPC: B01D17/02
Filed: 1975-07-28
Abstract: 1491324 Removing floating matter PATERSON CANDY INTERNATIONAL Ltd 25 May 1976 [28 July 1975] 31403/75 Heading B1D Floating matter is discharged from flotation tank 2 over pivoted weir 5 into box 4, the weir 5 being biassed towards its vertical position by counterweight 8. The weir may comprise a flat and a curved portion, one edge of the flat portion being pivoted. Liquid spraying pipes may be positioned along opposite sides of the tank 2 to aid the flow of matter to weir 5.
Patent GB-1100710-A (GB)
Title: Treating apparatus
IPC: B05C9/14
Filed: 1966-07-13
Abstract: 1,100,710. Automatic temperature control systems. GENERAL ELECTRIC CO. July 13, 1966 [Aug. 23, 1965], No. 31441/66. Heading G3R. [Also in Division D1] A machine for impregnating stator and other windings with varnish &c., includes an infrared detector 39 directed at the windings, which controls the winding supply to maintain the temperature constant. The machine may be controlled by a programme device 40 to provide pre-heating, impregnating and baking periods which may require different temperatures set by controls 41-43, also to determine the amount of varnish sprayed on to the windings. The arrangement may be also used to salvage old stators by deteriorating the old varnish by high temperature.
Patent GB-367743-A (GB)
Title: Improvements in pipes or tubes
IPC: F16L9/08
Filed: 1930-12-23
Abstract: 367,743. Cement &c. pipes. BARNETT, M. R., 5, Laurel Crescent, Keighley, Yorkshire. Dec. 23, 1930, No. 31443/31. Divided on 363,704. [Class 99 (ii).] Cement &c. pipes are reinforced by inner and outer spirally wound bars 2, 2a and intermediate longitudinal bars 3 contacting therewith, the pitch of the bars being such that the cement &c. may percolate, through and surround same during the centrifugal moulding of the pipes. The bars 2, 2a, which may be of any suitable cross section,. are wound in. opposite directions as shown. Additional reinforcement may. be applied to the pipe ends.
Patent GB-1121132-A (GB)
Title: Polymers of 2-methylene glutaronitrile and their method of preparation
IPC: C08F279/02
Filed: 1965-07-23
Abstract: A polymer having 10-10,000 recurring units of formula <FORM:1121132/C3/1> is claimed and may be prepared by polymerizing 2-methylene glutaronitrile (of formula NC-CH2-CH2-C(CN)=CH2) at -150 DEG  to +100 DEG  C. with optionally acrylonitrile, ethylene, styrene, butadiene or a mixture of styrene and butadiene.  The polymerization may be carried out in bulk or in the presence of an anionic catalyst, e.g. sodium cyanide in N,N-dimethylformamide, sodium and liquid ammonia or butyllithium in aq. emulsion in the presence of sodium lauryl sulphate, K2S2O8 and NaHSO3 or sodium pyrophosphate, potassium chloride, ferric sulphate and tert.-dodecyl mercaptan.  In an example, an elastomeric copolymer of butadiene and 2-methylene glutaronitrile (molar ratio 95/5) was compounded with ZnO, sulphur, carbon black, stearic acid, benzothiazyl disulphide and dioctyl adipate and vulcanized.ALSO:2 - Methylene glutaronitrile (an acrylonitrile dimer of formula NC-CH2-CH2-C(CN) = CH2) is prepared by dimerizing acrylonitrile in the presence of tri-n-butylphosphine as catalyst.
Patent GB-270593-A (GB)
Title: End pin for violoncellos and like stringed instruments
IPC: G10D3/00
Filed: 1926-12-13
Abstract: 270,593. Westermann, H., and Hellmich, P. R. A. Dec. 13, 1926. Violoncellos &c., supports for.-The end-pin b, conically inserted in the sleeve a, is hollowed to form an additional resonance chamber and lined with one or two brass tubes c, d projecting at g into the instrument. The tube d may have a conical end inserted in the tube c, and the tube c carries the interchangeable hollow or solid point f.
Patent GB-722306-A (GB)
Title: Improvements in free or semi-free piston motor compressors
IPC: F02B71/00
Filed: 1952-12-15
Abstract: 722,306. Free or semi-free piston compressors. PESCARA, R. P. Dec. 15, 1952 [Dec. 14, 1951], No. 31693/52. Class 7 (2). [Also in Group XXVIII] In a free or semi-free piston motor compressor comprising an internal combustion engine element and a compressor element the pistons of these two elements being integral or connected with one another to form at least one movable assembly, the adjustment of the discharge of the compressor element is obtained by decompression and the means which control the duration of the decompression and the means which control the quantity of fuel introduced into the engine element are arranged so that these means in order to obtain running on no load cause the decompression to commence during a suction period of the compressor element after previously causing diminution of the quantity of fuel whilst for re-establishing normal running the decompression means are put out of action before the increase of the quantity of fuel. As shown a fuel injection pump 10 and a push piece 27 which can hold open the suction valve of a compressor 4 are operated by fluid under pressure under control of a sleeve valve 13. The sleeve valve is rigid with the lever 6 of the mechanism for synchronising opposed pistons 2. The valve 13 is shown by two cross sections thereof. In the plane of one of these cross sections the sleeve is provided with a port 14, for the inflow of fluid which co-operates with a recess 17 of such a length that the port opens into the recess in all positions of the sleeve. In the plane of the other cross section the sleeve is provided with a port 15 for outflow of fluid which co-operates in turn with a groove 18 located in such a manner that the port 15 is in communication with this groove when the sleeve 13 is in the position corresponding to the outer dead centre of the pistons 2. Thus if the pipe 19 is connected to a source of fluid under pressure this fluid is supplied to a pipe 20 when the pistons 2 are close to their outer dead centre. This fluid acts on a piston 21 and shifts the pump 10 to a position corresponding to running under no load. In this position the piston 21 uncovers a port 23 and the fluid flows into a pipe 24 and shifts the push piece 27 into a position in which the suction valve 8 is held open. A reverse action takes place when the pressure is released. In order to bring the compressor into and out of action automatically a deformable box 30 is provided connected by a pipe 29 to a compressed air reservoir not shown. When the pressure in the reservoir reaches a predetermined value a valve 31 is raised and a pipe 34 connected to a source of fluid under pressure is connected to the pipe 19. When the pressure in the reservoir drops the pipe 19 is connected to an outlet 35 to atmosphere. The invention is applicable to a motor compressor with one free piston assembly only. It also applies to a motor compressor having semi-free pistons the outer dead centre positions being fixed.
Patent GB-482465-A (GB)
Title: Improvements in art of refrigeration and apparatus therefor
IPC: F25B23/00
Filed: 1936-11-19
Abstract: 482,465. Electrolysis. BRYANT, F. LE G. Nov. 19, 1936. No. 31738. Convention date, Nov. 19, 1935. [Class 41] [Also in Group XIII] In a refrigerating system in which water vapour from an evaporator 2 is absorbed by sulphuric acid in a chamber 4, the solution is concentrated by electrolysis in a vessel 10 effected by current induced in the'liquid by a transformer core 12. The liberated gases carry slugs of the liquid up to a separating chamber 19, whence the acid returns to the absorption vessel and the gases pass to a vessel 23 where they are recombined by ignition &c., the resultant liquid being returned to the evaporator.
Patent GB-306599-A (GB)
Title: Improvements in machines for winding web-rolls
IPC: B65H18/20
Filed: 1927-11-25
Abstract: 306,599. Marks, E. C. R., (Cameron Machine Co.). Nov. 25, 1927. Winding webs.-In winding-machines of the kind comprising two spaced drums rotating in the same direction and engaging the web roll, the web roll is prevented from bouncing or riding out of the machine by (1) so arranging the drums that the crest of the drum towards which moves the top of the web roll is higher than the, crest of the other drum, and (2) guiding the winding shaft in a line approaching the vertical centre-line of the lower drum. In the machine shown in Fig. 5, the web 18 is wound on the winding- shaft 3 by means of drums 1, 2, the drum 1 towards which moves the top of the web roll being higher than the drum 2. The winding-shaft and a riding roller 4 move on inclined guides 22. The riding roller is geared to a bevelwheel sliding on a shaft geared to the shaft of the drum 2. The web passes over guide-rollers 19, 20, 21, between a roller 5 and slitting-rollers 6, round the drum 1, and over the drum 2. The drums 1, 2 and roller 5 are geared together by a chain, the drum 2 being preferably driven at a higher speed than the drum 1. To prevent the riding roller from tending to push the web roll out of the machine, the guides of the winding roller may be so arranged that the riding roller moves away from the plane of travel of the winding-shaft. For this purpose, the riding roller and winding-shaft may be provided with inclined and vertical guides respectively. The drums of a standard machine may be arranged at different level as set out above by tilting the machine bodily, for instance by means of wedges placed under the front of the machine. In the machine shown in Fig. 13, a tiltable support 51 mounted coaxially with the drum 2 supports the drum 1 and has guides 53 for the winding-shaft 3. The support is tilted by means of worms 58 which engages sectors 57 on the support and are geared to a hand-wheel 62. The worm-gearing may be replaced by an eccentric engaging an opening in the support. A riding roller 4 is mounted on vertical guides 56.
Patent GB-604485-A (GB)
Title: Improvements in or relating to food choppers
IPC: B02C18/30
Filed: 1945-11-26
Abstract: 604,485. Mincers. STEVENS, A. H. (Hobart Manufacturing Co.). Nov. 26, 1945, No. 31809. [Class 28(ii)] The vertical food inlet of a worm type mincer comprises a number of arcuate feed passages, e.g. 30, 31, connected by a narrower passage 32 to prevent the hand from being pushed down far enough for the fingers to be caught by the worm. The worm cylinder 10 has flutes 18, one of which is extended at 40 to reach into one of the passages to guide the food from that passage circumferentially away from the other passage and into the worm. This intercepting extension may extend towards the narrow connecting part between the feed passages. One of the feed passages is formed in a lateral enlargement, (25, Fig. 4, not shown), of the inlet. The passages become larger in crosssection nearer to the worm. Mechanical food pushers may be used in the feed passages.
Patent GB-485471-A (GB)
Title: Improvements in electric switch and like cover plates
IPC: H01H23/04
Filed: 1936-11-21
Abstract: 485,471. Switch covers. TUCKER & CO., Ltd., J. H., MACBETH, C., and AVISON, R.G. Nov. 21, 1936, No. 31895. [Class 38 (v)] [Also in Group XXXVI] The cover-plate of a flush-mounted switch is made of convex formation so that. when applied to a wall, the corners c remain in contact with the wall even after the mounting ring (not shown) has been tightened. The material of the plate is made to taper from the centre towards a peripheral fiange e which is roughened to increase friction with the wall.
Patent GB-266678-A (GB)
Title: Improvements in roofing and glazing
IPC: E04D3/08
Filed: 1926-12-17
Abstract: 266,678. Kleinhans, A. B. March 1, 1926, [Convention date]. Glazing. - The astragals 13 supporting slates, shingles, glass, or other covering 14 are made of sheet metal bent to channel section with flanges 16, and are secured to and spaced from stringers 12 by lugs 18. The necks of the lugs are tapered to allow flexing of the sides of the astragals and the flow of moisture down the edges of the flanges, and are secured by pins 19 passing through slots in the lugs. The lugs have shoulders 21 engaging the stringers and are secured thereto by single rivets or bolts 22. The astragals and covering extend beyond and below the eaves of the supporting framework 10, 11.
Patent GB-169642-A (GB)
Title: Improvements in cloth piling machines
IPC: D06B23/00
Filed: 1920-11-13
Abstract: 169,642. Norton, D. G., Durot, A., and Farmer & Sons, Ltd., Sir J. Nov. 13, 1920. Piling fabrics in rope form.-In a cloth-piling machine, the cloth is drawn in rope form by a drum through a guideeye a, shown in plan view in Fig. 2, which is reciprocated on a tube c across the machine by means of a spindle e having both right and left-hand screw-threads, the cloth then passing to a winch t traversed on rollers u, u<1> on slotted tubular rails f, g by means of screws h, i each provided with both left and right hand screw - threads. The screws extend through the rails and are driven by bevel-gearing from the power shaft. A belt is passed around a pulley x on the winch spindle and around pulleys w on the spindles v of the pulleys u, whereby the winch is rotated as it reciprocates. In order that the fabric may be piled at will in any one of several receptacles 5, 6, 7, Fig. 5, the screw-threads may be formed on sleeves 11, Fig. 6, feathered on the shaft 12 and abutting against collars 13 locked in predetermined positions by pins 14 passing through holes in the rails. The interior of the rails f, g, and tube c, Fig. 2, can be partly filled with lubricant. Whilst one winch is piling fabric into the receptacles 5, 6, 7, Fig. 5, another winch may pile fabric into receptacles 8, 9, 10.
Patent GB-626335-A (GB)
Title: Improvements relating to thermally responsive electric circuit breakers
IPC: H01H73/30
Filed: 1946-10-30
Abstract: 626,335. Automatic circuit-breakers; snapaction switches. ROTAX, Ltd., and BOURNE, W. G. Oct. 30, 1946, No. 32281. [Class 38(v)] One contact of a thermally-actuated switch is carried by a snap-action lever mechanism operable by either of two pushbuttons and the other contact is carried by a thermally-deformable member, which can also effect separation of the contacts. The mechanism comprises a spring blade 3 with fixed and adjustable abutments 4, 5, respectively, and a contact-lever 9, pivoted at 8 and carrying a contact 10. A button 17, when depressed against a spring 18, bears on a cross-piece 19 of a lever 20, pivoted at 21, which pushes the spring 3 over-centre, the contact 10 being moved by a spring 11 acting on the lever 9 to engage a contact 25 on a bimetal strip 24. The contacts may be opened by depressing a button 16, thereby causing a spring arm 15 to bear on an extension of the spring 3 to throw it over-centre again, the contact 10 being returned by contact of lever 3 with an abutment 9<SP>1</SP> on the lever 9. Alternatively deformation of the strip 24 on overload causes the projection 13 on lever 9 to push the spring 3 into its upper position. The strip 24 may be heated by the current through it or by a series heater 27. The breaker may be short-circuited by a slight additional movement of the button 17 which causes a side arm of lever 20 to push a contact 30 into engagement with a fixed contact 31.
Patent GB-394658-A (GB)
Title: Improvements in and relating to printing presses
IPC: B41F1/40
Filed: 1931-11-24
Abstract: 394,658. Printing-machines. GAVED, C., 3, Castledine Road, and MANDEVILLE, J. P., 14, Sydney Street, Chelsea, both in London. Nov. 24, 1931, No. 32523. [Class 100 (ii).] Platen ofset machines are constructed with two or more offset surfaces which are arranged back-to-back and permanently located between the platen and the bed, and means is provided for inverting the offset surfaces so that at successive printing strokes an impression from a printing surface is received on one or more flat offset surfaces simultaneously with the transference to the work of an impression from another offset surface previously received from the same printing surface or surfaces. As shown, the offset surfaces are mounted on opposite sides of a carrier 19 pivoted to the frisket fingers 18 of the press, and are rotated through half a revolution by a rack 23 and ratchet 22 as the platen 16 opens. The rack 23 is pivoted to and operated by the swinging platen 16. The carrier 19 may be operated by a striker carried by the ink-roller operating mechanism, or by other means actuated from a periodicallyoperated organ of the press. A spring-controlled plunger 25 engaging in recesses on a disc mounted on the pivot 21 of the carrier 19 holds the carrier in correct printing position. The invention is especially applicable to printing by the dry planographic process.
Patent GB-189650-A (GB)
Title: Improvements in or relating to bearing, buffing and other shock absorbing springs
IPC: F16F3/12
Filed: 1921-12-05
Abstract: 189,650. Spencer, J. C. Dec. 5, 1921. Helical springs; india-rubber springs. - In a bearing, buffing, and other shock-absorbing spring of the type in which a strip-like india-rubber member intervenes between the coils of a helical spring, the india-rubber member is formed at one or both of its edges with a flange or lip which positions it with relation to the steel spring. As shown, a strip of india-rubber 2 moulded with a flange 3 is inserted between the coils 1 of a helical steel spring. The india-rubber may be moulded to helical form, and the surfaces which contact with the steel may be corrugated or provided with raised parts. Where the flange is provided at the inner or outer edge only, the india-rubber member is moulded to a greater or less diameter respectively than the steel spring, so that it will grip the latter when not under load. The thickness of the india-rubber member is such that it is slightly compressed between the coils of the steel spring when the load is normal, its ends being tapered to suit the diminished space between the end coils of the steel spring.
Patent GB-808285-A (GB)
Title: Earth strata-indicating system for a remotely controlled bore-mining machine having rotary cutting means
IPC: E21C39/00
Filed: 1955-11-15
Abstract: 808,285. Mineral-mining apparatus. UNION CARBIDE CORPORATION. Nov. 15, 1955 [Nov. 18, 1954], No. 32572/55. Class 68(1) For enabling a remotely controlled mining machine 10 having rotary cutters 18 for forming a bore through through which the machine can pass to be guided within the stratum to be mined there is provided an earth-strata-indicating system. The system comprises a transverse, horizontally position drum cutter 22, 24 that is driven by an electric motor 32, 36 connected to a power supply having measuring means 60, 58 adapted to indicate at a remote location 62 the prevailing power consumption. Thus by observing the variation in power consumption as the drum cutter passes from one stratum to another appropriate steps can be taken to control the direction of advance of the machine. The drum cutter is mounted behind the rotary cutter means in such a manner as to remove the cusps between the zones mined out by the rotary cutters 18. Preferably an upper and lower drum cutter is provided, each cutter being part of an independent control system. The drum cutters are provided with radial teeth of different length whereby wear due to engagement with hard peripheral layers of earth strata is concentrated on only a portion of the teeth at first.
Patent GB-335093-A (GB)
Title: Improvements in and relating to subaqueous sound apparatus
IPC: G10K11/35
Filed: 1929-10-26
Abstract: 335,093. Etectroacustic Ges. April 4, 1929, [Convention date]. Addition to 334,432. Subaqueous sound signalling apparatus. -In apparatus as claimed in the parent Specification for protruding subaqueous transmitting and receiving devices from a ship by means of fluid pressure, a valve system, limiting the maximum pressure which may be exerted upon protrusion or withdrawal, is provided. When the sword-like member e is in its outermost position, the pressure caused by the pump i is limited by a one-way spring-loaded valve v. Similarly, the maximum pressure reached when the member e is completely withdrawn is limited by a similar valve w, which is, however, more heavily loaded to compensate for the weight of the piston f and member e. The valves may be situated in the piston f or in the control cock l, and the valve v only may be provided. The loading of the valves may be adjusted.