baber/WOPTO huggingface dataset:
Patent GB-417626-A (GB)
Title: Rectifying column with continuous progressive cooling of the vapor
IPC: B01D5/00
Filed: 1933-08-25
Abstract: Vapours to be rectified are cooled progressively and continuously by a cooling-medium circulating in a closed circuit in indirect contact with and in the opposite direction to the vapours, the temperature of the cooling medium being adjusted to the initial temperature as it commences each new circuit.  As shown, the vapours pass from the still A through a pipe e to the rectifying column B in which they pass upwards through a tube b<2> surrounded by a jacket b<1> down which <PICT:0417626/III/1> liquid or gaseous cooling medium flows. The distilled liquid passes to a reservoir z.  The cooling medium is circulated by a fan &c. V through jacket b<1>, tubes f, l and a coil n in which the temperature of the cooling medium is reduced to the original value, e.g. by a liquid the boiling point of which is a few degrees lower than this temperature which passes from a container p up through a jacket q; this liquid is cooled in a container s surrounded by a water jacket T.  The cooling of the cooling medium may alternatively be be effected by a serpentine coil cooled by air or water.  The cooling medium is returned from coil n through a pipe c to fan V.  A compressor W comprising a loaded piston X is included in the circuit.  The path of the vapours during rectification can be extended, e.g. during the end of the process, by bringing in a column C by operating valves d<1>--d<4>, the vapours passing up from the still A to tube b<2> through a tube c<2> which is surrounded by a tube c<1> down which passes the cooling medium which is supplied from the tube b<1> through tubes f, g.  Means are described for operating valves d<1>--d<4> automatically to bring the column C into the circuit, consisting of a cylinder filled with a suitable vapour and containing a piston which, when the temperature in the still rises as its contents become poor in low boiling constituents, is forced upwards by the vapour against a spring and operates the valves through a piston rod actuating a wheel which acts on the hand wheels of the valves through rods. The columns B, C and the pipes are heat insulated.  Reference has been directed by the Comptroller to Specifications 184,760 and 329,331, [both in Class 32].
Patent GB-1533148-A (GB)
Title: Reception-transmission system for radio-electrical signal
IPC: H04N11/12
Filed: 1976-06-08
Abstract: 1533148 Television INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 8 June 1976 [20 June 1975 1 July 1975] 23620/76 Heading H4F A colour television system employs separate subcarriers f 1  and f 2  for each of the colour difference signals, in which at least one of the subcarriers is suppressed, and the frequencies thereof are separated by an odd multiple of half the line frequency. Colour difference signals are applied to terminals 1 and 2, Fig. 1 and modulate carriers f 1  and f 2  in respective balanced modulators 3 and 4 which suppress the carriers, prior to addition 7 to produce an output chrominance component 8 which is later combined with a luminance component. In the receiver Fig. 2 a one line delay 11, adder 13 and subtractor 12 act as a pair of comb filters for separating the frequency interleaved side bands of the carriers f 1  and f 2  which are demodulated 16 and 17 under the control of oscillators 18, 19 locked onto reference bursts transmitted with the composite video and extracted by burst gate 14. In another embodiment described w.r.t. Figs. 3 and 4 (not shown) colour synchronizing signals are combined with the colour difference signals prior to the balanced modulation thereof. In the receiver a pair of burst gates are employed to ensure the correct signals arrive at respective locked oscillators controlling demodulation. The principle of the invention may be applied to any set of N information signals exhibiting a frequency characteristic f' analogous to the television line frequency fH. In this case N subcarriers are employed, N - 1 of which at least are suppressed and the subcarrier frequencies are separated by an odd integer multiple of f/N. (e.g. plurality of discretely sampled audio signals, sampling frequency f<SP>1</SP> or left and right monochrome images for stereoscopic viewing).
Patent GB-466935-A (GB)
Title: Improvements in and relating to electric adaptors
IPC: H01R31/02
Filed: 1936-08-28
Abstract: 466,935. Two - part couplings. DABSCHECK, W. Aug. 28, 1936, No. 23639. Convention date, Aug. 28, 1935. [Class 38 (i)] A multiple-way connector for a three-wire system comprises a body formed in two parts 4, 6, in and between which are secured contact members 18, 19, 20 formed to provide branches each ending in a contact, and grouped so that the contacts are located so as to fit a standard counterpart. Blades 9, 10, 11, are formed at one end, the other ends having reflexed tips 18a, 19a, 21a located in slots such as 30 to receive the blades of a plug member. The lateral branches 21, 22 of the live contacts 18, 19 are twisted to an oblique position and lie between a projection 16 on the body part 4 and the walls of a corresponding recess 26 in the part 6. The lateral branches 23 of the earth contact 20 lie in a recess 17 in the part 4. If the device is to be attached to a flexible lead 33, Fig. 9, sockets 31 are formed on the branching contacts 20 to receive hollow plugs 32 over the ends of which the leads are spread and which are carried in a disc 35 clamped to the body part 4 by a screw ring 36. The wire connection is such as described in Specification 459,609.
Patent GB-195326-A (GB)
Title: Improvements in building and paving blocks, slabs and the like
IPC: B29D99/00
Filed: 1922-09-01
Abstract: 195,326. Hilliard, J. B. Sept. 1, 1922. Addition to 179,835. Compound blocks.-Building and paving blocks are formed by placing a number of the rubber trays A, described in the parent Specification, in a mould and casting therein concrete or other plastic material B to the depth required for the completed block. One or more of the trays may be omitted so that the finished block would have a surface partly of rubber and partly of concrete. By using a plate D, Fig. 3, in the mould a block with a kerb part E may be obtained. The blocks may be used for walls, floors, pavings, subaqueous structures &c.
Patent GB-277956-A (GB)
Title: Improvements relating to earth leakage protection devices for alternating current electric machines
IPC: H02H3/17
Filed: 1927-09-09
Abstract: 277,956. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges). Sept. 24, 1926, [Convention date]. Cut-out arrangements.-In order to protect the windings 1 of polyphase A.C. machines having a neutral point connected to earth through a limiting impedance 5 and a protective relay 7, and/or indicating instrument 6 against internal faults (which may be close to the neutral point), a permanent E.M.F. is imposed on the earth connection so that the relay will be operated on the occurrence of a leak at any point on the windings. In the arrange- .ment shown, the superimposed voltage is supplied by a transformer 8, 9 the primary of which is connected across two of the phases. The limiting resistance may be of the type which, through current saturation, limits the earth current to a predetermined maximum. A thermionic tube mav be located in the earth connection for this purpose. Instead of taking the auxiliary voltage from the machine itself it may be taken from an independent source of different frequency from that of the machine. The auxiliary voltage may be a D.C. voltage. Where the protection is applied to a generator supplying load direct, the potential displacement of the generator winding due-to the superimposed voltage is compensated for by the insertion of an equal and inverse auxiliary alternating voltage in each leading-out line of the machine.
Patent GB-316944-A (GB)
Title: Improvements in milking machines
IPC: A01J5/10
Filed: 1929-08-02
Abstract: 316,944. Remy, F. Aug. 6, 1928, [Convention date]. Cow-milkers. - A pulsator for a milking machine is so connected to two pulsation transmitting pipes communicating with two groups of teat cups that suction is effected in each pipe alternately. A pulsation transmitting pipe a is connected to the apertures c, d of a valve box b and a similar pipe a<1> is connected to apertures c<1>, d<1> in the valve box b<1>. Apertures e, f, e<1>, f<1> in the valve boxes are situated in the same vertical planes as the apertures c, d, c<1>, d<1> respectively; e, e' are connected to a common pipe in which there is a constant aspiration of air, and f, f<1> are open to the air. A rotatory valve i mounted in the box b is provided with two separate recesses k, l by means of which the aperture c can be put into communication with e and d with f respectively. As the valve i rotates, d and f communicate via the recess l and air is admitted to the pipe a, the apertures c, e being cut off meanwhile. On further rotation of i, d and f are cut off and c and e connected by the recess k, and a suction is communicated to the pipe a. A similar sequence of operations is effected in the box b<1>, but the valves are so connected to the pulley by which they are rotated that when suction is transmitted to the pipe a, air is admitted to a<1> and vice versa. In a modification, the two valves are combined in one box and the valve is made conical in shape to secure a tight joint.
Patent GB-1446246-A (GB)
Title: Multiple pack magnetic disc system
IPC: G11B17/038
Filed: 1974-05-29
Abstract: 1446246 Magnetic record disc assemblies DISK SYSTEMS CORP 29 May 1974 [29 May 1973] 23842/74 Heading G5R Several magnetic disc packs 11, 12, 13, 14 on parallel spindles cluster around a single headpositioning rotor 24. As shown, a motor 32 drives all the discs through a non-slip toothed belt 33, and each disc pack has a shroud 74 with a removable outer half 119.
Patent GB-533375-A (GB)
Title: Improvements in or relating to metal cutting machines
IPC: B23B9/02
Filed: 1939-08-18
Abstract: 533,375. Lathes. BILLINGS & SPENCER CO. Aug. 18, 1939, No. 23864. Convention date, Aug. 31, 1938. [Class 83 (iii)] A lathe having a number of spindles with their axes in a common plane has a horizontal tool slide 18 carrying tools co-operating with all the spindles and a number of vertical tool slides 35, one co-operating with each spindle, all the tool slides being operated from a common drive. In one form two work spindles are provided in a headstock 8, each spindle having means for feeding a stock bar. The spindles are both driven from a central shaft 10 through gears 11, 12. The tool slides are driven from a tube 13 surrounding the shaft 10 and carrying a gear engaging gears on upper and lower cam shafts 27, 16 respectively. The lower shaft 16 carries a cam 17 which through rolls 19 actuates the slide which is fitted with posts carrying two pairs of tools, one pair for each spindle. The upper shaft carries a cam 28 co-operating with rolls on a transverse cam bar 30 which has guide tracks 38 co-acting with rolls on the vertical slides 32 carrying parting tools. Thus as the cam bar is moved in one direction the cut-off slides are operated through a complete reciprocatory cycle. As the right hand tool of each pair 22 finishes its operation the parting tool is advanced and when severing is completed the two tools 22 at each spindle are in their mid positions. Fig. 2. The parting tools are then quickly raised, the stock bars fed, the left-hand tools advanced to perform a forming operation and then the parting tool is again actuated. The parting tools thus operate twice for each reciprocatory cycle of the tool slide 18 during which two pieces are completed at each spindle. In a modification, Fig. 6, the tools for each spindle consist of a forming tool 45 acting in conjunction with a knurl 53 and an undercutting or similar tool 46. In this form the stock feed mechanisms act alternately in the two spindles and only one piece is completed at each spindle for each complete cycle of the slide 18. During the stroke of the cam bar 30 to the left the left-hand parting tool is first withdrawn and then maintained in its inoperative position by its cam while towards the end of the stroke the right-hand parting tool is actuated. Similarly the left-hand parting tool is actuated towards the end of the return stroke to the right. The vertical tool slides may carry other tools such as knurls either alone or in combination with the parting tools. Where end-working tools such as drills are employed the parting tool may function during the boring and may be timed to finish at the same time as the boring operation. Specification 535,057 and U.S.A. Specification 1,892,239 are referred to.
Patent GB-357717-A (GB)
Title: Improvements in and relating to lubricating oils
IPC: C10G47/00
Filed: 1930-08-09
Abstract: Lubricating oils of high viscosity and flash point, and of low Conradson carbon value, are made by the process described in the parent Specification.  Heavy crude petroleum oils, containing small amounts of gummy, asphaltic and other impurities, are treated with hydrogen or hydrogen-containing gases (preferably in the presence of a hydrogenating catalyst), at a temperature above 700 DEG  F. and under a pressure in excess of 25 atmospheres, whereby the oil is destructively hydrogenated and the impurities removed, the production of oils boiling below 400 DEG  F. being limited to below about 20 per cent.  The oils so made may be dewaxed and after light acid and alkali treatment, are fractionated.  They may be blended with straight mineral lubricating oils.
Patent GB-379853-A (GB)
Title: Improvements in gates or control devices for electric switches and the like
IPC: H01H3/04
Filed: 1931-08-27
Abstract: 379,853. Actuation of switches; latching switches. HOPKINSONS, Ltd., HOPKINSON, R. A., and DALE, W. B., Britannia Works, Huddersfield. Aug. 27, 1931, No. 24099. [Class 38 (v).] A gate device for ensuring a pause between the closure of two circuits or the operation of two parts comprises a baseplate a, having a slot f which receives an arm e on the switch or other spindle d when this is in a central position, and two side plates b, c which must be pressed back against the action of springs g by a longitudinal movement of the spindle before the spindle can be rotated to close a circuit. In the form shown in the figure the plates b, c are arranged on opposite sides of the plate a. To close one circuit the spindle d is moved to the right pressing back the plate c and rotated so that the arm e moves to the left between the plates a, c, a stop h preventing rotation in the opposite direction and to close the other circuit the spindle is moved to the left and rotated so that the arm e moves to the right between plates a, b, a stop i preventing opposite rotation. In a modification Figs. 4 and 5 (not shown), the plates b, c are on the same side of the plate a, and when either plate has been pressed back by the arm e, the other plate acts as a stop to prevent rotation in its direction.
Patent GB-927337-A (GB)
Title: Improved means for use in the suspension or supporting of a hose pipe
IPC: F16L3/01
Filed: 1961-07-04
Abstract: 927,337. Self-winding reels. R. W. WILLIAMS. July 4, 1961 [July 14, 1960], No. 24137/61. Class 99(2). [Also in Group XXX] Means for use in the suspension or supporting of hose pipe comprises a wire cable 16 which is connected to the hose pipe about midway in the length of the pipe and is wound around a spring tensioned winding recoil drum mechanism 11 housed within a petrol pump casing. The cable passes from the drum 10 over a pulley 14 and out through a hole in the casing side close to the hose exit and is spring tensioned to such a degree that it serves to recoil and lift the hose pipe at about midway in its length so that the latter is supported on the sides of the pump casing in two loops with the bottoms thereof clear of the ground. The drum 10 is constructed with a reduced diameter for a short portion 21 of its length which is so situated that at a point close towards the full return of the cable to the drum the cable is fed on to that portion of the drum. As shown the drum 10 and the spring tensioning means 11A in a chamber 11 are mounted on a spindle 12 in a bracket 13 fixed inside the pump casing. The winding face 10A increases in diameter upwardly from the inner flange 17 to an outer flange 18 which is split so that several turns of the cable are accommodated on the drum portion 21 which decreases in diameter towards a flange 22. In another embodiment a single cable winding drum may be employed with varying diameters from end to end and desirably having helical grooves in the face of the drum to cause the cable to move along the drum.
Patent GB-717046-A (GB)
Title: Lever controls for change speed gear and other mechanisms
IPC: F16H61/02
Filed: 1951-10-18
Abstract: 717,046. Change-speed control. VILLIERS ENGINEERING CO., Ltd., ANSTEY, F., and BLEWITT, L. J. EDIS-. Oct 20, 1952 [Oct. 18, 1951], No. 24304/51. Classes 80 (2) and 80 (3) A gear-shift quadrant 21 or like member, located in operative positions by a spring- loaded detent 10 having a V-shaped nose 17 engaging V-shaped or curved notches 25 in the arcuate periphery of the quadrant, is additionally positively locked in gear (not neutral) positions by engagement of a rectangular nose 18 of the same detent in rectangular recesses 26 in the lower face of the quadrant, and freed by initial movement of a hand-or foot-operated gear-shift spindle 24, acting through a cam 27 to tilt the detent 10 downwards against lateral spring-resistance 20 about its spherically-enlarged rear end 15. After freeing the positive lock-nose 18 the spindle 24, operates the gearshift quadrant 21 through a spring-centralized lost-motion toothed connection as described in Specification 531 369 with a forked arm 23 embracing a stud 22x, on the quadrant, the V-nose 17 of the detent remaining permanently operative on the quadrant notches 25.
Patent GB-485137-A (GB)
Title: Improvements in folding mechanism for use in printing machines
IPC: B41F13/60
Filed: 1937-09-06
Abstract: 485,137. Paper-folding machines. HOE & CO., Ltd., R. Sept. 6, 1937, No. 24330. Convention date, Sept. 5, 1936. [Class 100 (i)] In apparatus for folding printed products of the kind comprising a product-carrying cylinder 12 with means for tucking the products between folding-off rollers 14, 15, in order to prevent flapping and folding-over of the trailing ends 28, 29 of the products 27 as they pass between the rollers, members are provided which move towards one another and into engagement with the ends 28, 29 so as to guide them and move 'them gradually together. As shown, the guiding members 39 are formed as levers pivoted on spindles 25, 26 and suitably-shaped at their ends 38 for engaging the product. Grooves are provided in the rollers 14, 15 to accommodate the members 39. Levers 45, 49 on the spindles 25, 26 are linked together by inter-engaging teeth or by a sliding block-andslot connection 46 to cause the members 39 to move in unison, such movement being in synchronism with the folding devices and caused by a cam acting on a link 55 pivoted to one of the members. In order that an initial adjustment of the positions of the members 39 may be effected, they are connected to the spindles 25, 26 by bolts 43 passing through slots in the members and through holes in arms 42 fixed rigidly to the spindles. Beyond the folding-off rollers 14, 15, guides 31 direct the products to delivery rollers 33, 34.
Patent GB-942038-A (GB)
Title: An improved textile fabric
Inventor: HARGREAVES BRIAN EUGENE
IPC: D03D15/00
Filed: 1960-07-13
Abstract: An interlining fabric is woven entirely from yarn consisting of horse hair or like springy fibres wrapped with cotton. Specification 907,441 is referred to.
Patent GB-207637-A (GB)
Title: Improvements in or relating to shutters for photographic cameras
IPC: G03B9/08
Filed: 1922-09-08
Abstract: 207,637. Houghton-Butcher Manufacturing Co., Ltd., Denniss, A. J., and Edwards, V. W. Sept. 8, 1922. Shutters.-A tortuous or zig-zag guideway and a co-operating pin are introduced into the shutter mechanism between the shutter and a pivoted or hinged member, so that the latter is caused to oscillate during the exposure. The invention is applicable for fixed speed shutters and is adaptable as the controlling means for variable speed shutters. In a fixed speed sliding plate shutter the pin A<1>, Fig. 1, on the shutter blade A engages the zig-zag slot D<1> in a plate D pivoted at one end C to the camera front B. In a variable speed sliding plate shutter, Fig. 5, one arm of the lever M has a pin engaging the slot N<1> in the pivoted plate N and the shutter speed is controlled by setting the other arm in the path of the shutter pin L<1> according to a speed scale and so varying the length of travel of the pin in the slot N<1>. In a fixed speed pivoted blade ever-set shutter, Fig. 4, a pin J<1> on the operating bell crank lever J, travels in the zig-zag slot H<1> on an oscillating plate H which is pivoted at one end H<2> to the shutter blade G. In a variable speed shutter of the diaphragm type, Fig. 6 the end Q<1>, of a lever Q is raised against a spring R by a hand operated lever (not shown) until the latter clears and releases the end Q<1> which permits the spring R to operate the shutter leaves S, S<1>. A fixed pin Q<2> on the lever Q works in a slotted link T, to one end T<1> of which is pivoted a plate U having the zig-zag slot U<1> which moves over a fixed pin V. The other end T<2> of the link T is pivoted to a bell-crank lever W rocking on a fixed pivot W<1>, the longer arm W<2> of which acts as a setting lever to vary the retarding effect of the link T and plate U.
Patent GB-1344295-A (GB)
Title: Type carrier and transportable cartridge for the same
IPC: B41J1/20
Filed: 1971-04-19
Abstract: 1344295 Selective printing MEMOREX CORP 19 April 1971 [20 March 1970] 24391/7 Heading B6F Type-bond construction.-A metal bond is formed either by etching or stamping with a plurality of fingers 103 with bifurcated legs 113, a strip 119 which renders the bond substantially unstretchable and clocking means comprising a plurality of holes 105. A V-shaped projection 109 acts as guide means and is formed on the inner of two strips of plastics material 123 (127, Fig. 5) which sandwich the metal bond between them. In an alternative (Fig. 6), the V-shaped projection 109 is formed solely by crimping the legs 113. Metal type are spot welded to the fingers 103 and plastics type are injection moulded directly on to the fingers. The type-bond is housed in a cartridge (20, Fig. 7). The cartridge includes a recess for receiving the hammer assembly (136, Fig. 8) of the selective printer, and includes a sidewall portion (140) which co-operates with the V- shaped guide projection 109. The sidewall additionally includes magnetic guidance means (146) which comprises a strip of magnetic material (148) such as rubber impregnated with magnetized particles and coated with a bearing surface such as P.T.F.E. When the cartridge is placed in the printer, drive shaft (150, Fig. 9) acts against the biasing action of a spring (158) to lift the spool (138) driving and guiding the type-bond from its seat (154). In this lifted position the spool rotates about ball-bearing (162).
Patent GB-615865-A (GB)
Title: Method of regenerating vulcanised copolymers
IPC: C08J11/20
Filed: 1946-08-16
Abstract: Vulcanised copolymers of dienes and styrene are regenerated by mixing the ground copolymer with coal tar distillate, heating the mixture with direct steam at 140 to 200 pounds per square inch for 4 to 7 hours and finally milling and refining the stock.  A suitable coal tar distillate is a middle oil fraction having a boiling point of about 200 DEG  C., and a suitable amount is 8 to 10 per cent by weight based on the copolymer.ALSO:Vulcanized copolymers of dienes and styrene are regenerated by mixing the ground copolymer with coal tar distillate, heating the mixture with direct steam at 140 to 200 lb. per sq. in. for 4 to 7 hours and finally milling and refining the stock.  A suitable coal tar distillate is a middle oil leaving a boiling point of about 200 DEG  C., and a suitable amount is 8 to 10 per cent by weight based on the copolymer.