baber/WOPTO huggingface dataset:
Patent GB-286281-A (GB)
Title: Improvements in plants for washing coal or other minerals
IPC: B03B5/26
Filed: 1927-09-21
Abstract: 286,281. France, A. March 4, 1927, [Convention date]. Inclined-trough apparatus; upward-current classifiers.-In coal &c. washing apparatus of the kind in which the coal is carried bv a stream of water through a channel 1 having slots g for the elimination of shale &c. plates 2 are provided which can be moved transversely of the channel in order to modify its section at will. The plates 2 are adjusted by screws 4 bearing in the channel walls and have hinged plates 7 the upper ends of which rest against the channel walls. A plan of the channel, Fig. 3, shows an arrangement of the plates for the purpose of forming a sill of shale upstream of the slots g. The plates 2 are connected by hinged overlapping plates C, D and the end plate 2 has a hinged plate B connected to the channel wall by a slidable connection.
Patent GB-242418-A (GB)
Title: Improvements in the manufacture of axles and in apparatus therefor
IPC: B21H1/18
Filed: 1924-10-20
Abstract: 242,418. Baker, G. Oct. 20, 1924. Axial rolling.-An axle is rolled to shape with journals and/or collars between three or more rolls 5, 6, and 7 provided with non-continuous raised segments 7<2> with tapered ends. The upper roll 7 is mounted in a sliding block 9 for adjusting the pass by a lever system and an eccentric 15 rotated e.g. by hydraulic cylinders acting on a rack and pinion. The roll 7 is flexibly connected by universal joints 28 to a pinion driven shaft 21, while the lower rolls 5 are connected by ordinary couplings to similar shafts, the three pinions being driven by a central pinion on a shaft 30 rotated in one direction or oscillated by hydraulic power through a rack and pinion 31. The apparatus may also be used for smoothing and planishing roughly forged axles.
Patent GB-1419344-A (GB)
Title: Process of scrubbing acid components from gases
IPC: B01D53/77
Filed: 1973-05-24
Abstract: 1419344 Revivifying absorbent solution METALLGESELLSCHAFT AG 24 May 1973 [30 May 1972] 24988/73 Heading C5E Laden absorbent solution produced when acid components are scrubbed at ambient temperature from a gas, e.g. natural gas, commercial synthesis gas or fuel gas, under pressure with a physical absorbent is regenerated by subjecting the solution to a pressure relief in a plurality of stages and by stripping the pressurerelieved solution in a regenerating tower under atmospheric or subatmospheric pressure with a stripping gas which consists of the gas which is flashed off as a result of pressure relief in one of the stages other than the last stage to a pressure between the absorption and ambient pressure, and the stripping gas, before being fed into the regenerating tower, is scrubbed with a branch stream of the absorbent which has been fully regenerated as far as the components to be scrubbed from the starting gas are concerned. The absorbent-which has been used to scrub the stripping gas is combined with the absorbent which has been partly pressurerelieved in that stage and the resulting mixture fed to another pressure-relief stage. The pressure-relieved absorbent is heated before being fed to the top of the regenerating tower. The solution is subjected to pressure relief in the regenerating tower which acts as the last pressure relief stage.
Patent GB-694511-A (GB)
Title: Electric contacts for fuse holders, switches and the like
Inventor: LOWE SIDNEY ROLAND
IPC: H01H1/42
Filed: 1950-10-13
Abstract: 694,511. Switch and fuse contacts. MIDLAND ELECTRIC MANUFACTURING CO., Ltd. Sept. 3, 1951 [Oct. 13, 1950], No. 25012/50. Class 38 (v) A contact for a fuse-holder or switch comprises a tongue piece shaped to form a pair of substantially parallel parts d having bent-over ends f adapted to be inserted between two rigid contacts (not shown), a helical spring g being arranged between the ends f to increase the contact pressure. The spring is arranged in a metal sleeve h located in holes in the parts d, a spacing collar i being formed or mounted on the sleeve. In a modification, Fig. 4 (not shown), the ends f are bent-over inwards and the spring bears on the parts d, the sleeve passing through holes in the ends f.
Patent GB-816813-A (GB)
Title: Improvements in or relating to strip drying apparatus
IPC: G03D15/02
Filed: 1957-08-08
Abstract: 816,813. Drying materials in long lengths. ZINDLER, W., [trading as LUMOPRINT ZINDLER K. G.]. Aug. 8, 1957 [Sept. 27, 1956], No. 25085/57. Class 34(1) Apparatus for drying film &c. 26, Figs. 1, 2, comprises a chamber divided by a partition 1a into an upper drying compartment and a lower compartment housing the mechanism driving the film conveyer 28. The upper compartment comprises a channel formed by partitions 2...8 and through which the film and its conveyer pass from an inlet 10 to an outlet 9 in the same direction as a current of air forced by a blower 39 over an electric heater 24. The wet film is unwound from a reel 27, its free ends having been attached by a clip to the conveyer, and the dry film wound on a reel 31. The reels are driven through belts 41, 42, Fig. 3, from an electric motor which also drives the rollers 12, 29, 32. The direction of rotation of the motor is automatically reversed so as to rewind the dry film back on to the reel 27, by a leader strip 47 which, owing to its thickness is unable to pass through a guide slot formed between a roller 35 and a head 34 carried by a pivoted arm 36 carrying the roller and so tilts the arm thus turning a cam 48 which actuates switch armatures 49<SP>1</SP>, 49<SP>11</SP> controlling the flow of current to the motor. A second arm 53 connected by a link 54 to the arm 36 affects another reversal of the motor when the film has been rewound on the reel 27.
Patent GB-1122619-A (GB)
Title: Improved vacuum cleaner
IPC: A47L9/00
Filed: 1966-06-06
Abstract: 1,122,619. Suction cleaners. ELECTROLUX Ltd. 6 June, 1966 [16 June, 1965], No. 25098/66. Heading A4F. A connection piece 2 for a hose at the front end of a suction cleaner is connected by toothed gearing as shown, or by a link, belt, and/or chain system to a castor 5, 17 mounted on a vertical axle 15, so that as the connection piece 2 is turned about a vertical axis the castor 5, 17 is also turned. When the castor is mounted at the front of the cleaner as shown it is turned in the same direction as the connection piece 2, but when mounted at the rear end, as in Figs. 3 and 4 (not shown), it is turned by chain gearing having crossed runs in a direction opposite to that of the turning of the connection piece 2.
Patent GB-237767-A (GB)
Title: Improvements in and relating to meat slicing machines
IPC: B26D7/02
Filed: 1924-10-22
Abstract: 237,767. Thomson, D. B. Oct. 22, 1924. Cutting slices in succession.-In a meat-slicing machine of the type comprising a meat table moved intermittently over a base by feed mechanism, and a knife guide in which an ordinary hand knife is operable; the feed mechanism comprises a vertically slidable rod k guided in brackets l, l<1> and urged upwardly by a spring m, a pin j carried by the rod k engaging in a slot in a swinging arm h carrying a pawl i which engages a ratchet wheel g by which the feed screw o is operated through bevel gearing. A pin o<2> on the meat table engages the feed screw and a fingerpiece is provided on the spindle f whereby the meat table is retracted from the knife guide. The rod k is provided with pin holes k<1> to receive a pin k<2> which contacts with the bracket l when the rod k is depressed to effect the slice feed, the slice thickness being adjusted by placing the pin k<2> in any suitable hole k<1>. The depression of the rod k, or the operation of the pawl, may be effected by the knife through a suitable lever. The meat clamp comprises uprights p, one of which is serrated at p<2> to engage a pawl p<3> pivoted to the cross-member c and released by a fingerpiece p<5>. The member c is of inverted U.shape in cross-section and is provided with tee:h c<1>. The meat table is provided with upwardly directed teeth q at its forward edge. Adjustable side supports r for the meat are carried on a serrated rod r<1>, the bottom end of each support being composed of apertured lugs which embrace the rod. The supports r may be swung down into an inoperative position, the plate a' of the base a being removable to permit this. The knife guide comprises spaced rods d and a fibre or like cutting roller or block s is provided.
Patent GB-1508318-A (GB)
Title: Vacuum pump apparatus
IPC: F04B49/24
Filed: 1975-06-11
Abstract: 1508318 Vacuum pumps SIEMENS AG 11 June 1975 [24 June 1974] 25107/75 Heading F1C A chamber 1 is evacuated by means of a sidechannel compressor 4 in series with a liquid-ring compressor 3 discharging to atmospheric pressure P 3 . Initially, the compressor 4 is by-passed by a by-pass line 6 until the pressure P, has fallen to 40 torr, whereupon a pressure sensor 8 closes the bypass valve 7 and starts the driving motor 10 of the compressor 4 via a control device 11. Instead or in addition, excessive pressure differences P 2 -P 1  across the compressor 4, as sensed by a sensor 9, may control the speed of the motor 10, as by switching it off, or may open the valve 7. The blades of the compressor 4 may be resilient so as to limit the attainable pressure difference.
Patent GB-260570-A (GB)
Title: Improvements in station and route indicators for railway trains, trams and other fixed route vehicles
IPC: B61D41/00
Filed: 1926-10-11
Abstract: 260,570. Perez, M. de L. Oct. 28, 1925. [Convention date]. Moving-map indicators for vehicles.-A travelling strip a or a drum bearing the names of stopping-places, distances, &c., read against a fixed pointer b, is driven in relation to the distance traversed by an electric motor fed by a generator c which is supported on the locomotive &c. carriage and may be driven by a crank b connected to the coupling or connecting rod a. The generator may supply current to a number of such indicator units disposed in various parts of the train.
Patent GB-1130963-A (GB)
Title: Holder for a golf ball
IPC: A63B47/00
Filed: 1966-06-08
Abstract: 1,130,963. Bags. W. IRVINE. 1 June, 1967 [8 June, 1966], No. 25439/66. Heading A4G. A golf ball holder comprises a bag of dimensions substantially completely to encompass a ball and made e.g. of waterimpervious material lined with waterabsorbent material, e.g. sponge rubber, the mouth being closable by means of adhering plastics strips, zips or press studs. In use, the sponge rubber is wetted with hot water.
Patent GB-1377580-A (GB)
Title: Electron tubes
IPC: H01J9/12
Filed: 1973-06-01
Abstract: 1377580 Cathode processing EMI Ltd 1 June 1973 [1 June 1972] 25569/72 Heading H1D An electron tube includes an electrode forming a frame, an evaporator tape extending across the frame with its ends electrically connected thereto, and a resilient member mounted on the frame to tension the tape and thereby prevent it sagging and making unwanted contact with other portions of the electrode when heated to evaporate material upon the electrode. As described, the arrangement is employed to form a coating of antimony on the dynode electrodes 7 of a photomultiplier tube, the tape 6 being welded to the electrode frame 8 and tensioned by resilient members 9, 10. The tape may be heated by induction from outside the tube.
Patent GB-490573-A (GB)
Title: Improvements in or relating to continuous combustion heating apparatus adapted for operation with liquid fuel
IPC: F23C99/00
Filed: 1937-09-21
Abstract: 490,573. Vapour burners. SVENSKA AKTIEBOLAGET GASACCUMULATOR. Sept. 21, 1937, No. 25573. Convention date, Oct. 5, 1936. [Class 75 (i)] In an apparatus for vaporizing liquid fuel in which liquid fuel and air or an oxygencontaining dilution gas are delivered on to a vaporizing surface in an opposite direction to that in which the vapour formed tends to move, the pipe or channel in the vaporizer through which the fuel and air is delivered is made of such a sectional area that the air diffuses into the vapour with a velocity forming a mixture of increasing fuel vapour content having a lower dew point and a higher spontaneous ignition temperature than the temperature of the part of the vaporizer wall with which it is in contact. In Fig. 1 the corresponding temperatures and mixture strengths at which spontaneous ignition and condensation will occur are shown by the cross-hatched area enclosed by the curve a and the section lined area enclosed by the curve b respectively. A suitable relation between the mixture strength and vaporizer wall temperature is shown by the line c lying between the curves a, b. Unsuitable relations are shown by the lines d, e. Fig. 3 shows a pipe 6 delivering fuel through a thin-walled pipe 10 to a vaporizer 7 in contact with a heated surface 8. A member 11 arranged above the pipe 10 is fitted with an air inlet 14 and is connected by a thick-walled pipe 12 to a body 13 formed with heat dissipating ribs surrounding the pipe 12. The pipe 6 is thereby maintained at a temperature below that at which the fuel will vaporize and decompose and, owing to the pipe 10 being of a length at least twice its diameter, the air from the inlet 14 will diffuse into the vapour with little turbulence so that the mixture strength will decrease continuously in an upward direction. In a modification the pipe 10 is made conical so that the air velocity is greater at the top, this construction minimizing the effects of partial clogging of the inlet 14. Specification 411,529 is referred to.
Patent GB-616088-A (GB)
Title: Improvements in and relating to the butt-welding of pipes or like hollow members
IPC: B23K37/053
Filed: 1946-08-27
Abstract: 616,088. Uniting by fusion. AITON & CO., Ltd., and AITON, J. M. Aug. 27, 1946, No. 25573. [Class 83 (iv)] Pipes &c. a, b are secured in alignment for butt welding &c. by saddles e tack welded across the joint faces whilst the pipes a, bare temporarily drawn together by bolts c and split collars a<SP>2</SP>, b<SP>2</SP> engaging abutments a<SP>1</SP>, bl welded to the pipes. The abutments a<SP>1</SP>, bl may receive the bolts direct. A backing ring d may be provided.
Patent GB-361961-A (GB)
Title: Jar mechanism for use in well drilling operations
IPC: E21B31/107
Filed: 1930-08-27
Abstract: 361,961. Borehole apparatus. WIGLE, W. B., 1207, North Willow Street, Compton, and TRAUSE, E. A., 3207, West 21st Street, Los Angeles, both in California, U.S.A. Aug. 27, 1930, No. 25586. [Class 85.] A jar for use in welldrilling operations comprises a casing 5 provided at its upper end with an anvil 6 with a polygonal bore slidably engaging the polygonal stem 7 of a hammer member H secured to the drill string, latches 22 being pivoted to the hammer member; on forcing down the latter, the latches ride over surface 29 of a member 28 pressed by a spring 32, and are thus forced into engagement with slots 26 in the casing and held by the member 28. An upper tubular member 27 o:n the member 28 slides in the bore of the hammer member, while a lower tubular member 35 has ports 38 which are closed when the parts are in locked relation. The member 35 has a ball check valve allowing passage of fluid when the apparatus is lowered into a well. In use, when the parts are locked as in Fig. 3, a pull is applied to the drill string and fluid pressure is applied through the latter to depress the member 28 and release the latches, the hammer then striking the anvil while the fluid passes out through ports 38.
Patent GB-349390-A (GB)
Title: Device for facilitating the paying out of coin money
IPC: G07D9/02
Filed: 1930-08-27
Abstract: 349,390. Coin-handling appliances. RAUSCHER, P., Kleine, Stadtgutgasse, Vienna. Aug. 27, 1930, No. 25616. Convention date, Sept. 14, 1929. [Class 116.] In a coin-handling appliance, a fixed pan b of cup-like or concave formation is disposed beneath the discharge end of a tiltable coin tray a and may be provided at r with an inturned lip to facilitate removal of the coins. The tray a, which is supported in horizontal position by members d having rubber caps j, may be tilted about an axle c by a handle h, the rear portion i of the pan then serving as a stop.
Patent GB-943832-A (GB)
Title: Improvements in or relating to machines for emptying eggs
IPC: A47J43/14
Filed: 1962-07-05
Abstract: 943,832. Egg opening machines. G. J. NOLTES. July 5, 1962, No. 25724/62. Heading A4R. In a machine for emptying eggs, the eggs 6 are placed manually or mechanically in open-bottomed cups 4 on an intermittently moving conveyer 2, and are successively centralised by a fixed head A and then held by a resilient head B while a knife 19 partially severs a cup 6a from the bottom end of the egg. A head C then pierces the eggs and their contents are blown out, either by a cup-shaped head D having a connection to gaseous pressure, or if this fails, by a pressure-connected head E having a resilient bottom disc 23B with an orifice which surrounds the pierced hole. Scavenging air-jet heads F 1 , F 2 , F 3  then strip residual egg-white from the shell insides. The shell cup 6a, blown down by discharging egg yolk X and white Y into a support cap 9 positioned underneath the cup 4, serves to guide the egg contents smoothly into a pivotally mounted receiving tray 21 inspected by an observer who periodically tilts the tray to pass the contents on into a tilting tray 24, if satisfactory, but who replaces the tray 21 with a clean one if a bad egg is detected. Tilting tray 24 has its open end 24 B normally down so that the eggs pass into a separator trough 25 from which egg-white only passes through a slot 25A, but if broken yolks are detected in tray 21, end 24C is pushed down (this may conveniently stop the machine) and discharge into a trough 30. A trough 28 passes egg-white from heads F 1 , F 2 , F 3  direct to trough 25. The heads A . . . . F 3  are dependent from a pressure supply pipe 10 which is mechanically, hydraulically and/or electrically raised and lowered in timed relationship with the intermittent movements of the conveyer 2.
Patent GB-1048822-A (GB)
Title: Copolymers of propylene oxide
Inventor: COOPER WILFRID
IPC: B29D35/00
Filed: 1962-07-05
Abstract: Unsaturated copolymers of propylene oxide having a minimum degree of stereo regularity so that at least 25% by weight is insoluble in acetone at 0 DEG  C. are prepared by polymerizing propylene oxide with up to 10 mole per cent of an epoxide containing olefinic unsaturation in the presence of a catalyst comprising the reaction product of a zinc dialkyl with aluminium trioxide or with aluminium trioxide and silicon dioxide and a solvent for the monomers. The latter is present in amount of at least twice the weight of total monomers and include hexane and cyclo-aliphatic and aromatic hydrocarbons. Specified unsaturated monomers are butadiene and cyclopentadiene monoxides, and allyl, cinnamoyl and crotyl glycidyl ethers. The oxide components of the catalyst are generally activated prior to reaction with the zinc dialkyl, e.g. by heating to 400 DEG to 600 DEG  C. Unreacted zinc dialkyl is preferably removed from the catalyst by washing with hexane. Zinc diethyl is the specified zinc component. After polymerization, the catalyst is deactivated by adding a compound containing active hydrogen, e.g. an alcohol, or steam used to separate the copolymer.  The products may be vulcanized with sulphur or sulphur-containing compounds together with conventional additives.  Uses.-Tyres, belting, shoe-soles.ALSO:A catalyst for the polymerization of propylene oxide (see Division C3) comprises the reaction product of a zinc dialkyl e.g. zinc diethyl with aluminium trioxide or with aluminium trioxide and silicon dioxide.  The oxide components are generally activated before reacting with the zinc dialkyl, e.g. by heating to 400 DEG  to 600 DEG C.  After heating with the zinc compound, e.g. in hexane, unreacted zinc compound is removed by washing with fresh hexane.
Patent GB-589361-A (GB)
Title: Electrical frequency dividing circuit arrangement
IPC: H03B19/12
Filed: 1944-12-22
Abstract: 589,361. Frequency dividers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 22, 1944, No. 25802. Convention date, Dec. 24, 1943. [Class 40 (v)] A frequency divider has a potential at a fundamental frequency applied in the anode circuit and means for applying potentials at a fractional frequency to the anode and grid circuits respectively in anti-phase, the valve being biassed to conduct only during the positive peaks of oscillation at the grid. Fig. 1 shows a source of oscillations 10 at the fundamental frequency connected in the anode circuit of triode 4 which also includes circuit 12, tuned to the desired sub-harmonic frequency. Inductance 14 feeds sub-harmonic oscillations in anti-phase to the grid, and network 16, 18 provides automatic bias. In Fig. 5, curve E <1> represents the primary oscillations in the anode circuit and an initial surge of anode current shocks circuit 12 into free oscillation E<111>, and grid rectification produces a bias Eb which effectively blocks the valve against the highest peaks of fundamental oscillation at the anode. Conduction only occurs during intervals p when positive peaks of sub-harmonic oscillation E<11> at the grid rise above cut-off level. Power with a strong sub-harmonic component is supplied to the circuit 12 and resonance causes build up of large potentials for transfer to the output circuit 15. In Figs. 2 and 3 (not shown), the load circuit 12 is connected (a) in the cathode lead, and (b) common to the grid and anode circuits with an auto-transformer connection to the cathode ; in each case the output is taken direct from the anode. Fig. 4 shows a modification in which a resistance-capacity network is arranged to give 180 degrees phase shift for oscillations at the desired sub-harmonic of the frequency generated by the source 10. As before, the bias network keeps the valve cut off for several cycles of fundamental frequency until the grid is brought above cut-off level by the sub-harmonic voltages applied to the grid through the resistance capacity network 24, 25 which also serves as a filter to produce a substantially pure sine wave output.
Patent GB-732378-A (GB)
Title: Improvements in or relating to liquid fuel systems for motors such as turbine starters
Inventor: TROWBRIDGE DAVID ROY
IPC: F02C7/264
Filed: 1952-10-15
Abstract: 732,378. Igniting burners. PLESSEY CO., Ltd. Oct. 13, 1953 [Oct. 15, 1952], No. 25860/52. Class 75 (3). [Also in Group XII] Means are provided for injecting liquid fuel in different degrees of atomization in different zones of a combustion chamber, and an ignition device is situated in each zone. In the combustion chamber shown, the atomizer 19 has two pairs of spray nozzles 11, 12 arranged in respective compartments 9, 10 which are separated by a perforated partition 8. A sparking plug 13 is provided in each compartment for initial ignition. The nozzles 11 give a fine spray to provide a rich mixture which will ignite at the lower limit of the temperature range, while the nozzles 12 give a coarser spray to provide a weak mixture which will ignite at the upper limit of the temperature range. The flame from the ignited compartment propagates to the other compartment through the perforated partition 8. The partition may be omitted. In a modification, the combustion chamber is divided into two chambers constituting the two compartments and communicating through a short passage.