baber/WOPTO huggingface dataset:
Patent GB-642610-A (GB)
Title: Improvements in containers for cold storage
IPC: F25D23/06
Filed: 1948-01-21
Abstract: 642,610. Refrigerators. PANELCRAFT SHEET METAL CO., Ltd., and SHARPE. H. J. N. Jan. 21, 1948, No. 1788. [Class 29] [Also in Group XVII] An insulated transit container for ice cream &c. has the walls of the inner metallic lining 4 grooved at 10 to permit free passage of air around articles disposed in the container, the grooves 10 communicating with intersecting grooves in the floor. The inner lining is of sheet metal and the space between the lining and the outer box 3 is packed with insulating material. The vertical grooves 10 may be connected by horizontal subsidiary grooves, and the bottom of the lining has transverse and longitudinal grooves. The goods are covered with dry ice. The lid 5 is attached by a pair of curved links 6 pivoted to a plate fixed between the lining and outer casing, so that the links lie horizontal when closed. Clips 9 secure the lid to the container when closed.
Patent GB-725292-A (GB)
Title: Improvements in or relating to frequency modulated circuit arrangements
IPC: H03C3/09
Filed: 1953-01-21
Abstract: 725,292. Automatic frequency control systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Jan. 21, 1953 [Jan. 29, 1952], No. 1813/53. Class 38 (4). [Also in Group XL (c)] A frequency-modulated oscillator provided with automatic control of its mean frequency wherein the time-constant of the automatic control is of such low value that control is effective at the highest modulation frequency it is desired to transmit and modulation is effected by shifting the zero point of regulation is characterized in that the modulation voltage is not a pure sine wave but also includes a D.C. component. The system is particularly applicable to frequency-shift telegraphy transmitters in which there is not a constant centre frequency. As shown in Fig. 2, the output from the controlled oscillator 1 at frequency f1 is mixed at 3 with the output of a crystal source 4 at frequency f4, to produce the frequencies f1Œf4. A discriminator at 3 tuned to one of these frequencies yields a control voltage UR proportional to any deviation of the frequency f1. The voltage UR is fed in series with the modulating voltage UM to a frequency regulator 2 associated with the controlled oscillator 1, the usual time-constant network for preventing automatic control at modulation frequencies being omitted. This results in negative feed-back of the modulation frequencies and requires a stronger modulation voltage. In Fig. 4, the valve source 1 is controlled in frequency by a valve reactance 12, and its output f1 is mixed at 3 with the output f4 of the crystal source 4. The resulting sum or difference frequency is fed to a frequency discriminator to yield an output voltage UR which is connected in series with the modulation voltage UM. The resultant control voltage is applied to the grid of the reactance valve 12 through a low-pass filter circuit 8, 9 designed to block the high-frequency oscillations and modulating voltages of higher frequency than desired. The resultant control voltage is also applied through a circuit 10, 11 of longer time constant to a pair of relays 14, 15. The relay 14 when operative closes a contact 14<SP>1</SP>, and the relay 15, which is polarized, closes one or other of the contacts 15<SP>1</SP> according to the polarity of the control voltage. The contacts 14<SP>1</SP> 15<SP>1</SP> control the direction of rotation of a motor 7 geared to a tuning element 13 of the valve oscillator 1. The motor control is arranged to come into operation when control by the valve reactance 12 reaches its limit.
Patent GB-330950-A (GB)
Title: Improvements in the production of artificial materials from organic esters of cellulose
IPC: D01F2/28
Filed: 1929-01-18
Abstract: 330,950. British Celanese, Ltd., Dickie, W. A., and Sowter, P. F. C. Jan. 18, 1929. Cellulose carboxylates, processes for making filaments and films from.-Uniform saponification of threads, ribbons, films, &c. made of cellulose acetate or other organic esters of cellulose, is obtained by carrying out the saponification treatment continuously with the production of the threads &c. 'The materials may be made according to the dry or wet spinning process, and it is preferred that at the moment of treatment they are still in a swollen condition or carry substantial quantities of solvent; thus, there may be used coagulation baths containing solvents or swelling agents for the cellulose ester as in the processes of Specifications 177,868 and 179,234, or the coagulated materials may be subsequently treated in such baths, or alternatively or in addition swelling agents may be incorporated in the spinning solution; and in the case of dry spinning the treatment is applied while the threads retain substantial quantities of solvent, such retention being assisted by the addition of high boiling solvent or swelling agent to the spinning solution. Caustic alkalies or ammonia are suitable saponifying-agents. The threads obtained have a subdued lustre and are capable of yielding cross-dyed effects, for example, with substantive dyestuffs, when used in association with unsaponified threads &c. It is preferred to produce only a partial saponification. In examples, cellulose acetate filaments are coagulated in 50-55 per cent aqueous diacetone-alcohol, and are then passed directly into a trough containing 2.5 per cent aqueous or alcoholic caustic alkali ; cellulose acetate filaments dry spun from a solution containing, for example, the high boiling solvents of Specification 312,203 using apparatus described in Specifications 165.519, 198,093, 203,092, 300,998 and 304,674, are passed directly after leaving the spinning cell and while containing substantial quantities, and with or without washing over a wick, rotating roller or other device supplied with 5 per cent aqueous or alcoholic caustic alkali, the filaments being if desired subsequently washed or if lubricated treated with a lubricant inert towards the saponifying-agent.
Patent GB-884005-A (GB)
Title: Pellet mill
IPC: B30B11/20
Filed: 1960-01-19
Abstract: 884,005. Pelleting plastic materials. BONNAFOUX, P. Jan. 19, 1960, No. 1850/60. Class 87(2). A pellet mill 10 comprises a housing 30 and having a number of inlet openings 190, defining a chamber 34 an annular die 130 within the chamber 34 and encompassing a number of extrusion rollers 56 each located adjacent an inlet opening 190 and a rotatable feed member 188 extending through each inlet 190 to feed the plastic material, e.g. animal foodstuff, to a roller 56. The material is fed from a hopper 174 by screws 176 through a chamber 184 to the feed members 188. The rollers 56 are secured on shafts 58 19cated in sleeves 78 which are eccentrically mounted to enable adjustment of the rollers in the ring 130, either individually or simultaneously by a handle 116 and gears 114. The rollers 56 operate in a plate 42 having rollercleaning scrapers 70 and the material extruded through die is cut by adjustable knives 140. The base of the chamber 34 has applied to it a vacuum by a pump 112 for the purpose of extracting loose material and fines.
Patent GB-790486-A (GB)
Title: Automatic lathe with compressed air oil lubrication
IPC: B23Q11/12
Filed: 1955-01-21
Abstract: 790,486. Lathe details. SCHUTTE, A. H., COMMER, G., WELCKER, L., THEN, E., and PECHMANN, E. F. VON. Jan. 21, 1955 [Jan. 27, 1954], No. 1913/55. Class 83 (3). [Also in Group XXXIV] An automatic lathe has a piston-pump for producing compressed air which is led to a chamber supplied with lubricating oil, the oil being thereby atomized and delivered to the bearings of the work-spindles, and the pump being operated responsive to periodical movements of parts of the lathe. The lathe has a cam-shaft 14 carrying cam-drums 15, 16, the drum 15 controlling the movement of tool-slides. The drum 16, by linkage 18, controls the feedmechanism 19 for bar-stock and by a lever 20, controls a collet-slide 22 and a collet-sleeve 23 which actuates a spring-chuck for holding the work. The lever is connected at its upper end to a piston-rod 27 which reciprocates a plunger 28 within a cylinder 29. When the plunger is retracted, air enters the cylinder through opening 30. As the plunger moves forward the air is compressed, and the compressed-air atomizes lubricating oil fed to a cylinder-head 33 through a line 34. The oil in mist-form is blown through lines 35 to the bearings of the work-spindles 13.
Patent GB-214707-A (GB)
Title: Improvements in or relating to water impact fuses for projectiles
IPC: F42C15/29
Filed: 1923-01-22
Abstract: 214,707. Nichols, H. J. Jan. 22, 1923. Projectile fuzes.-A fuze adapted to function only on impact with water comprises a sleeve 7 and a piston 16, one of these members carrying the percussion cap 20, and the other the firing pin 26. The front face 28 of the piston 16 is cup-shaped with a central projection 27 in line with a hole 17 in the end 19 of the sleeve 7. The plunger and the sleeve are held in the safe position, shown, by springs 30, 31. When the fuze strikes water, the water rushes through a hole 11 in the nose of the fuze and through the hcle 17, and strikes the front face of the piston 16. Owing to the configuration of this face the water jet is deflected and thrust forward against the front wall 19 of the sleeve 7. The combined movement of the piston backwards and the sleeve forwards causes the firing pin to strike the percussion cap. The latter is secured in its recess by a perforated screw plug 21 followed by an ignition charge 23 covered by an ignition disc 29. A detachable screw plug for the hole 11 is shown.
Patent GB-1409663-A (GB)
Title: Hatch cover assembly
IPC: B63B19/197
Filed: 1972-01-15
Abstract: 1409663 Hatch covers ALGOSHIP INTERNATIONAL Ltd 19 Oct 1972 [15 Jan 1972] 2004/72 Heading B7S Two hatch cover panels 5a, 5b are hingedly connected along abutting ends 6 for jack-knife folding movement on rails 36 of rectangular coaming 12. Hinge brackets 17 extend outwardly and downwardly from the end of panel 5b and deck mounted bracket 18 is on the longitudinal centre line of the hatch cover. The ends of brackets 17 remote from panel 5b are pivotally mounted on the bracket 18 and the hatch cover is moved by hydraulic cylinder and ram 28. Link members 23, 25 are pivotally mounted on panel 5b and bracket 18 and to the end of the ram and are at right angles to each other when the cover is in the hatch closed position. Rollers 43 on the end wall of panel 5b engage a pair of ramps 45 on the end wall 19 of the coaming to give an initial lift to the panel, as both panels move to a vertical position clear of the end of the coaming.
Patent GB-874599-A (GB)
Title: Improvements relating to the filling and emptying of tower purifiers
Inventor: GARRETT WILLIAM ROBERT
IPC: C10K1/22
Filed: 1958-01-21
Abstract: 874,599. Purifying gases. NORTHERN GAS BOARD, and GARRETT, W. R. April 20, 1959 [Jan. 21, 1958], No. 2091/58. Class 55 (2). In a process of removing hydrogen sulphide from crude coal gas, by passing the gas through towers containing a column of superimposed trays of iron oxide, trays of spent oxide are removed from a first tower and a second tower is filled with trays of fresh oxide by opening the base of the first tower, removing the trays one by one from the bottom of the column therein, emptying and refilling the trays, and inserting the refilled trays in sequence into the open bottom of the second tower to form a column of trays supported therein, and closing the bottom of the second tower. In Fig. 3, a tower has a cylindrical shell 1 with a removable base plate 3a which is secured with the aid of a series of swivel bolts 21 provided with ring nuts 22. The tower contains a column of trays 17a, 17b, &c., each tray having a removable central tube section 39. The various sections 39 form together a continuous central discharge duct 40 for leading the purified gas out of the top of the tower. Each section 39 has a portion 59 extending downwardly from the tray bottom, and has at its upper end a liquid seal channel 60, the portion 59 of each section entering the channel 60 of the section below. With the lowermost tray 17a, portion 59 of the central tube section enters a basin of sealing liquid confined within cylindrical wall 61 which extends upwardly from base plate 3a. Pipes 62 are provided within the tube sections 39 for overflow of the sealing liquid from one channel 60 to another and finally into the basin at the base of the tower. Each of the trays in the tower has a cylindrical wall 27 on the exterior of which are located abutments 26a, 26b, &c., engaged by depending hook members 28 which are provided with counterweights 29 on arms 30. The members 28 carry the entire load of the column of trays; however, when the base plate 3a has been removed and the column of trays supported by jacks, members 28 (being relieved of weight) can be swung aside to release them from the abutments 26a of tray 17a, whereupon the whole column of trays can be lowered on the jacks until members 28 engage abutments 26b of tray 17b. Tray 17a can then be removed and, by following a similar procedure each tray remaining in the tower may be removed in its turn. In Fig. 4 (not shown) the purified gas discharges from the bottom of the tower and the trays are provided with the dry sealing means of Specification 874,598. Apparatus for removing spent oxide from the trays and for refilling the trays with fresh oxide is described.
Patent GB-110685-A (GB)
Title: Improvements in and relating to Wireless Telegraph Apparatus.
Inventor: THOMPSON ROY JAMES
IPC: H01Q5/50
Filed: 1917-02-12
Abstract: 110,685. Thompson, R. J., and Thompson, J. Feb. 12, 1917. Diplex and multiplex wireless signalling. - A multiplex receiving system consists of a plurality of tuned circuits T associated with coherers 11 and relays, 9 which control sounders 16.
Patent GB-509617-A (GB)
Title: Process and apparatus for the production of envelopes, flat bags and similar articles
IPC: B31B150/00
Filed: 1938-01-21
Abstract: 509,617. Making envelopes &c. WINKLER, A., and DUNNEBIER, M. Jan. 21, 1938, No. 2111. Convention date, June 2, 1937. [Class 94 (ii)] In apparatus for making envelopes &c. in which the blanks (which may be parted off from a web) are printed on one or both sides and provided with profile closure-flap gumming, the printing and gumming being dried simultaneously, the blanks drawn separately from an adjustable pile 1 by a know suction roll 5, 6 are fed by a suction cylinder 11, whereon aniline printing from a device 12-15 is applied to the interior sides of the blanks, to a suction cylinder 20, whereon aniline printing is applied by the device 21-24 to the exterior sides of the blanks. Suction rolls 29, 98 now feed the blanks to a suction roll 99, when a type roll 100 applies profile gumming to the closure flaps. A suction roll 29<1> now feeds the blanks beneath an adjustable counter roll 106, and tips them rearwardly between slower running belts 48, 49, to leave the gummed flaps exposed, air jets keeping the blanks apart and preventing smearing of the printing. The belts 48, 49 convey the blanks through the drying zone 63 where they have contact with hot air. The blanks are now fed by belts 65, 71 to a motor-running belt 79 which separates them and they are folded completed and packed in known manner.
Patent GB-599551-A (GB)
Title: Radio direction finders
IPC: G01S1/02
Filed: 1945-01-26
Abstract: 599,551. Radio direction-finding. STANDARD TELEPHONES & CABLES, Ltd. Jan. 26, 1945, No. 2158. Convention date, Jan. 26, 1944. [Class 40 (v)] In a D.F. system with a continuously rotating aerial or equivalent goniometer system in which the receiver output causes a luminous image spot to move in a linear path, the image is projected through or viewed through an optical system rotating synchronously with the aerial so that the image describes a polar diagram indicating the direction of the received signal. As shown in Fig. 3, the signal received by the rotating frame aerial 24 which is driven by the motor 32 is applied through the receiver 26 to the mirror galvanometer 40 causing a beam of light 42 from the lamp 44 to-be deflected by the mirror 40 and then projected on to a frosted-glass or phosphorescent screen 50 through the prism 8 which is rotated about its neutral axis X, X in synchronism with the aerial. The neutral axis is that direction in which the incident and emergent beams are colinear and a beam incident at an angle # to this axis is deflected and rotated at twice the speed of the prism, Fig. 2 (not shown), so that if the prism is rotated at half the speed of the aerial and the mirror 38 is initially adjusted so that in the absence of received signals the beam impinges at a point 54 on the screen 50 a sharp double-ended pattern is produced. The 180 degrees ambiguity may be resolved by switching in the sense aerial 34 and the D.F. accuracy may be increased by rotating the prism at the same speed as the aerial, Fig. 6 (not shown). In a modification, Fig. 4, the receiver output is applied to deflect the beam of a cathode-ray tube 62 in a linear vertical path L1, L2 and the luminous spot is viewed through an optical system comprising three mirrors 18, 20 and 22 which are mounted inside a tube 52<1> which is rotated about its axis by the aerial motor, the mirror system being equivalent to the prism 8 used in the embodiment shown in Fig. 3. In a modification of this mirror system, Figs. 8 and 9 (not shown), the two mirrors 20 and 22 are rotated inside a stationary tube, the inside surface of which forms the third mirror. Further known equivalent optical systems are illustrated in Fig. 1 (not shown). When using a cathode-ray tube, the intensity of the image may be increased by applying a high-frequency horizontal deflecting field to produce a short horizontal line 68, Fig. 7, which is condensed to a spot in the horizontal plane by the cylindrical lens 70 and then projected on to a screen 72 through the rotating optical system 63<1>.
Patent GB-1148836-A (GB)
Title: Improvements in or relating to hydraulic braking systems
IPC: B60T11/16
Filed: 1967-01-16
Abstract: 1,148,836. Master cylinders. SOC. ANON. ANDRE CITROEN. 16 Jan., 1967 [20 Jan., 1966], No. 2195/67. Heading F2F. In an hydraulic braking system a device is interposed between the master cylinder 5 and the brake circuits which comprises means 9 closing communication between the master cylinder and the braking circuits when the master cylinder pressure falls below a predetermined value, the remaining fluid in the braking circuits flowing back into a variable capacity space independent of the master cylinder and the same means ensuring that this fluid volume returns to the brake circuits on the next brake action before the re-opening of the communication between the master cylinder and the braking circuits. The device is connected through duct 4 with a fluid reservoir (not shown) and through intercommunicating ducts 10, 11 with the brake circuits. Operation.-When the brakes are applied the fluid pressure in master cylinder 5 is communicated via the duct 12 to act on a large piston 9 which moves a plunger piston 7 to the right against the loading of a spring 8. Fluid in the annular chamber surrounding the plunger piston 7 is forced into the brake circuits through duct 10 until the piston 9 has moved far enough to permit direct flow to the brake circuits through duct 11. On the return stroke of the master cylinder piston the brake fluid flows directly from the brake circuit via ducts 11, 12 to the master cylinder until the piston 9 closes this communication. The remaining fluid in the brake circuit passes via duct 10 to fill the variable capacity space, any excess fluid causing the piston 7 to move to the right to expel fluid from chamber 6 into the duct 4 leading to the oil reservoir. The device ensures the desired clearance between the interengaging members.
Patent GB-802748-A (GB)
Title: Apparatus for distributing glass or other fibres upon a conveyor
Inventor: DANI ANDOR DE
IPC: D04H1/732
Filed: 1956-01-24
Abstract: 802,748. Agglutinated fibrous sheet materials. FIBREGLASS, Ltd. Jan. 15, 1957 [Jan. 24, 1956], No. 2264/56. Class 140. [Also in Group IX] In the production of a bonded fibre mat, glass fibres from nozzles 14 are blown by a blower 16 into a conduit 17 which is divergent at 17a, convergent at 17b and divergent again at the outlet 17c, providing a venturi-like portion which imparts a streamlined flow to the gaseous suspension of fibres. The conduit bends through a right angle at the part of minimum cross-section. Outlet 17c which is of fishtail shape spreads the fibres in mat form on a wire mesh or similar conveyer 18 extending over a suction chamber 19. Nozzles 20 spray adhesive or resin on to the fibres as they emerge from outlet 17c. In a modification, two conduits 17 arranged side by side discharge one above the other on to the same conveyer. In other modifications, two or more upper conduit portions 17a, each receiving fibres from a separate head 15, unite to form a single venturi-like portion 17b, 17c.
Patent GB-903427-A (GB)
Title: Improvements relating to processes for the melt spinning of synthetic thermo-plasticmaterial
IPC: D01D5/08
Filed: 1959-01-21
Abstract: Filaments of synthetic thermoplastic materials are made by a melt-spinning process, in which the filaments emerge from the spinning nozzle into a zone, at least 1 metre in length, of a spinning tube, the zone being held at a temperature 10 DEG -80 DEG C. (preferably 10 DEG -50 DEG C.) below the melting point of the synthetic thermoplastic material, the lower portion of the tube being held at a temperature, below 100 DEG C., and the filaments being reeled at a speed between 1,300 and 2,600 metres per min. (preferably 1,500-2,000 m./min.) whereby the filaments are stretched while passing through the aforementioned zone.  The heating zone may be heated directly, e.g. by infra-red radiation, or by passing a heating medium through it.  The filaments may be cooled in the lower portion of the spinning tube by blowing a cooling medium on to them, e.g. a cooled gas or a moisture-containing gas.  In a modification, preferred where a heating medium is used in the heating zone, the spinning tube consists of two separate parts, the upper part being held at 10 DEG -80 DEG C. below the melting point of p  the synthetic material by passing a heating medium through it, the lower part of the spinning tube being held at a temperature below 100 DEG C., there being means for supplying and withdrawing the heating medium to the upper part of the spinning tube.  The heating medium, e.g. preheated nitrogen, may be blown on to the filaments either in the direction of spinning or in the opposite direction.  Specified materials include polyamides, e.g. polycaprolactam having a low content of low molecular and monomeric constituents, polycarbonates, polyurethanes and polyesters.  The filaments may be further stretched before being reeled, preferably at temperatures above 100 DEG C.  Conventional hotstretching means are used.  Apparatus comprises a spinning tube, the upper portion of which is at least 1 metre in length and is provided with heating means to maintain it at a temperature 10 DEG -80 DEG C. below the melting point of the synthetic thermoplastic material, and means for reeling the filaments at from 1,300-2,600 metres per minute.  Preferably, the lower portion of the spinning tube is provided with cooling means.  Apparatus suitable for the modified process comprises a spinning tube consisting of two separate parts, there being means for the supply and withdrawal of a heating medium in the upper part of the spinning tube which is at least 1 metre in length and is maintained at 10 DEG -80 DEG C. below the melting point of the synthetic thermoplastic material, and means for reeling the filaments at from 1,300-2,600 metres per minute.  Cooling means are preferably provided in the lower part of the spinning tube. French Specification 976,505 and U.S.A. Specification 2,604,667 are referred to.