baber/WOPTO huggingface dataset:
Patent GB-1209986-A (GB)
Title: A hydraulic thrust-amplifying device
Inventor: STRAUFF GUNTER
IPC: B60T11/224
Filed: 1968-09-26
Abstract: 1,209,986. Fluid-pressure control of brakes; controlling clutches. V. LANGEN, [trading as LANGEN & CO.]. 26 Sept., 1968, No. 45716/68. Headings F2F and F2L. An hydraulic thrust amplifying device for operating brakes or clutches includes an input piston 7 of smaller diameter F2 and a servo piston 2 of larger diameter F3, wherein idle motion is provided between the input piston and the servo piston and the input piston bears against the servo piston 2 through an interposed biased spring 10 which yields above a given threshold of input thrust so that a part (6) of the length of the piston 7 slides in a bore 5 of the servo piston 2 to close off the connection between a chamber 15 ahead of the servo piston 2 and the chamber 12 ahead of the input piston 7. The chamber 15 communicates with a reservoir 17 and channels 13 and 14 normally connect the chambers 15 and 12 in the inoperative state of the servo unit shown in Fig. 1. Fig. 2 shows an alternative embodiment wherein the diameter of the input piston 24 is constant (F4) and is adapted to slide in a bore 23 in the servo piston 20 against the force of the spring 26. The bore 23 communicates with an annular chamber 31 ahead of the servo piston 20 through a channel 33 and the servo piston 20 permanently communicates through channels 30 in the input piston 24 with the annular chamber 29. In operation, when thrust is applied externally to the input piston 7 (Fig. 1) so long as the reactive force acting on the piston-rod 3 does not exceed the thrust of the bias spring 10 the servo piston will be displaced by a similar distance to the displacement of the input piston 7. Fluid is thereby transmitted via the channels 14, 13 from the annular chamber 15 to the annular chamber 12 since the fluid in the reservoir 17 is kept under slight gauge pressure. When the limiting actuating thrust is exceeded the spring 10 is compressed and the communication between the chambers 15 and 12 is closed and further relative motion between the input piston 7 and the servo piston 2 causes the pressure in the annular chamber 12 to rise and the displacement of the input piston 7 and the servo piston 2 are inversely proportional to the effective crosssectional areas and since F3 exceeds F2 the force acting on the servo piston 2 will always exceed that acting on the input piston 7.
Patent GB-997544-A (GB)
Title: Air-conditioning unit for air-conditioning equipment in vehicles
IPC: F24F1/01
Filed: 1963-11-20
Abstract: 997,544. Air conditioning. LUWA A.G. Nov. 20, 1963 [Nov. 21, 1962], No. 45793/63. Heading F4V. An induction air conditioning unit for railway vehicles comprises a rectangular section housing 1 is divided by a partition 2 into an upper recirculated air chamber 3 and a lower fresh air chamber 4 each of which contains a heat exchanger and a filter. The heat exchanger 8 in the chamber 3 is mounted on a perforated plate 7 and together with a filter 9 is enclosed by a cage having a perforated cover 10 held in place by a screw 13. On removal of a unit front plate 15 held by quick-action screws, the filter may be replaced by undoing the screw 13 and pivoting the cover about a hinge 12. An air inlet grid 16 is formed in the front plate 15. The fresh air chamber 4 contains coarse and fine filters 17 and 21 held in a frame 19 by a perforated holder 18 fixed to the front plate 15. Fresh air under pressure is supplied to the chamber 4 via a pipe 28 and after passing through the filters 17 and 21, an opening 24 in a partition 20, and heat exchanger 26 partially separated by a partition 20a is ejected through nozzles 27 to an outlet passage 6 to induce the flow of room air through the chamber 3. Condensate from the heat exchangers is run off through outlets 30 and 32 and the plate 15 is provided with thermal insulation in the region of the lower chamber 4. The heat exchangers 8 and 26 are connected in series to supply and return lines of a heating or cooling medium, but if required may be connected to separate pipe systems. An air conditioning unit is mounted beneath each window of the carriages of a train and fresh air is supplied from an intake point which is common to all units in one carriage or in all carriages of the train. The discharge duct 6 may be extended by two ducts one on either side of the window and extending to the top of the window. Some of the conditioned air may discharge beneath the window and some from the extension ducts, or all the air may discharge from the extension ducts.
Patent GB-985119-A (GB)
Title: Improvements in or relating to carrier bags
Inventor: PRESTON ARTHUR
IPC: B65D33/12
Filed: 1962-12-04
Abstract: 985,119. Carrier-bags. BIBBY & BARON Ltd. Feb. 26, 1964 [Dec. 4, 1962], No. 45849/62. Heading A4G. A method of making carrier bags comprises securing stiffening cords 1 to a web at the handle positions, forming the web into a side gussetted tube 3 with the cords within one gusset, slitting the tube at the bottom of the gusset at 6, cutting the tube into bag lengths and closing the ends.
Patent GB-1298029-A (GB)
Title: Improvements in and relating to folding ironing boards
Inventor: BYRNE PAULA HAZEL
IPC: D06F81/02
Filed: 1970-09-28
Abstract: 1298029 Ironing boards P H BYRNE 28 Sept 1970 46095/70 Heading D1A A foldable ironing board comprises an elongated work surface comprising end portions 1, 3, one of which may be tapered, hinged to a central portion 2 and a support comprising an upper part 7 fixed to the portion 2 and legs 10 which diverge downwardly to support the work surface or are folded together and retracted within the upper part 7. When hinged down the end portions 1, 3 abut the upper part 7. The upper part 7 comprises two parallel box-section members (Fig. 6) with longitudinal slots forming guides for two rollers 17, 18 on a pivot shaft 16 for the legs 10. Each leg comprises two parallel members 12 and 14 or 13 and 15 secured to a foot 28 or 29 at the bottom and pivoted on the pivot shaft 16 at the top. A torsion spring 43 urges the legs apart and foldable supports 30, 31 are provided for the raised end portions. (For Figures see next page)
Patent GB-1000577-A (GB)
Title: Method of improving the welding properties of studs made of alloyed steel
IPC: B23K35/02
Filed: 1961-12-22
Abstract: 1,000,577. Weld-studs. K. WASSERKAMPF. Dec. 22, 1961 [Jan. 27, 1961], No. 46125/61. Heading F2H. [Also in Division B3] The end of an alloy steel stud to be welded to a low alloy or mild steel workpiece is plated with metal similar to the workpiece. A disc of such metal is resistance welded to the stud using an electrode in the form of a die which produces the desired shape of welding end, e.g. as shown in Fig. 3 or 4.
Patent GB-1058405-A (GB)
Title: Improvements in the moulding of a frangible barrier on a moulded web member
Inventor: CHAPMAN ROBERT HENRY
IPC: H01R9/22
Filed: 1964-11-13
Abstract: 1,058,405. Terminal blocks. BELLING & LEE Ltd. Nov. 13. 1964, No. 46236/64. Heading H2E. [Also in Division B5] An electrical terminal block, Figs. 1 and 2 (not shown), comprises on its top side (6) transverse baffles (7), which are integral with ridges (8), (9) on side walls (2), (3), and frangible longitudinal baffles (10). The block is moulded. in one piece from, e.g. nylon, polypropylene or polycarbonate. Two terminals are described, one having a solder tag (31), Fig. 6 (not shown), and the other a square-sectioned winding shank (38). The screw-thread portions (33) of these terminals are housed in apertures 17, 18 of the block and if desired are connected together longitudinally by means of a contact strip (41), Fig. 9 (not shown), and transversely, after removal of the appropriate baffles 10, by a strip (43), Fig. 10 (not shown).
Patent GB-1189020-A (GB)
Title: Improvements in Cigarette Testing
Inventor: MOLINS DESMOND WALTER
IPC: G01M3/26
Filed: 1967-10-11
Abstract: 1,189,020. Testing mouthpiece cigarettes. MOLINS MACHINE CO. Ltd. and D. W. MOLINS. 10 Oct., 1968 [11 Oct., 1967], No. 46374/67. Heading A2C. The joints between cigarettes or similar rod-like articles and mouthpieces attached thereto are tested for air leaks by forming around each article in turn an air pressure zone only in the region of the joint so that the periphery of the joint is subjected to an air pressure different from that at an end of the article thereby to cause air to flow at least through a faulty joint and the air flow so produced is used in effecting rejection of such faulty articles. A pair of cups 1, 2 embrace a cigarette 3 and its filter mouthpiece 7 with a slight gap 4, the cups 1, 2 providing a chamber 5 encircling the region of the joint 6. Suction or compressed air is applied to a port 8 and any increased flow of air due to a faulty joint is detected and used to reject the faulty cigarette. Series of cups 1, 2 may be arranged each on a pair of drums arranged to rotate to bring pairs of cups successively into co-operation, or they may be carried by a single endless conveyer with one member of each pair movable relative to the other on the conveyer.
Patent GB-1084025-A (GB)
Title: Container with closure
IPC: B65D43/16
Filed: 1965-11-03
Abstract: 1,084,025. Container closures. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Nov. 3, 1965 [Nov. 5, 1964], No. 46605/65. Heading B8T. A container closure 16, e.g. of polypropylene, which may be a snap fit on the container rim, has an integral portion 12 which hinges about a thin web section provided by one or more grooves 15 to provide a discharge opening. When the portion 12 is initially raised with the aid of a projection 21, weakened areas in the rim 17 of the closure and at the ends of the grooves are broken. A plate 13 with perforations 14 below the portion 12 may be located in the container mouth. The closure may be circular and the portion 12 sector shaped. The non-hinged part of the closure may be welded or screwed to the container, and the hinged part may have projections which fit into the perforations of the plate. Alternatively the closure rim extends upwardly and the closure is fitted within the container mouth.
Patent GB-1011675-A (GB)
Title: Article and process for forming
IPC: B32B15/01
Filed: 1962-12-11
Abstract: An alloy for use in making a composite metal sheet structure having internal passageways comprises: .Zr.0.1-0.3% .Fe.up to 1.0% .Si.up to 1.0% .Cu.up to 0.2% .Mn.up to 0.05% .Zn.up to 0.1% .Al.the balance The alloy is cast at above 1325 DEG F., soaked at 850-900 DEG F. and then hot rolled.  The composite sheet comprising a sheet of the above material and one of a similar alloy not containing zirconium may be pressure welded (e.g. by hot rolling), cold rolled and then partially annealed (e.g. at 550-600 DEG F.) prior to inflation by fluid pressure.
Patent GB-1143506-A (GB)
Title: Method of producing semiconductor devices having connecting leads attached thereto
IPC: B05B1/26
Filed: 1966-10-19
Abstract: 1,143,506. Semi-conductor devices. SYLVANIA ELECTRIC PRODUCTS Inc. 19 Oct., 1966 [19 Oct., 1965], No. 46788/66. Heading H1K. A method of producing beam leads on an integrated circuit includes a process to produce conductive lands over the areas on which the beam leads are to be deposited, a process to produce a conductive layer, covered with a masking layer, over the remaining areas to electrically interconnect the lands, and electroplating thick beam leads on the lands. The surface of a. silicon wafer (10), containing a plurality of integrated circuits, is covered with a layer (12) of silicon dioxide with apertures (13) to expose the required contact areas to which ohmic contacts (15) are applied by sputtering a layer (14) of platinum over the surface, heating to form platinum silicide, repeating these two steps twice, and then etching in aqua regia to remove any uncombined platinum, Figs. 1 to 3 (not shown). A layer (16) of copper is vacuum deposited over the surface and is photo-masked and etched using aqueous ferric nitrate to expose the surface of the oxide layer (12) at the areas on which the beam leads are to be formed, Figs. 4 to 7 (not shown). A thin layer of manganese, nickel-chromium, or aluminium may be deposited on the surface before depositing the copper layer, and in the case of aluminium it may be etched by spraying with a solution of sodium hydroxide. The remaining parts of the photo-resist (17) are then removed and a layer (23) of titanium is sputtered on to the wafer followed by a layer (24) of platinum, Figs. 8 and 9 (not shown). The wafer is then etched in aqueous ferric nitrate to remove the remaining parts of the copper layer (16) and the overlying parts of the titanium and platinum layers (23, 24) are peeled off, Fig. 10 (not shown). A layer (27) of aluminium is deposited over the wafer and photo-masked and etched to expose the lands formed by the remaining parts of the titanium-platinum layers (23, 24), Figs. 11 to 14 (not shown). The remaining parts of the aluminium layer (27) overlie the oxide layer between the titanium-platinum lands (23, 24) and interconnects them so that a single electrical connection (cathode) may be made to these metallic layers to enable thick beam leads (30) to be produced by electroplating with gold using a gold cyanide electrolyte, Fig. 15 (not shown). The photo-resist (28) used in the etching of the aluminium layer (27) prevents the deposition of gold on the aluminium and this resist together with the underlying aluminium layer are now removed, Fig. 16 (not shown). Parts of the wafer are then removed to form a plurality of integrated circuits, one of which is shown in Fig. 17, the various components of each circuit being isolated by the removal of the intervening semi-conductor material, and being mechanically supported and electrically interconnected by the beam leads 30.
Patent GB-1131245-A (GB)
Title: Improvements in or relating to high frequency synchrodyne signal receivers
IPC: H04B15/06
Filed: 1965-11-10
Abstract: 1,131,245. Automatic frequency control systems; transistor amplifying circuits. INTERNATIONAL STANDARD ELECTRIC CORP. 10 Nov., 1965 [10 Nov., 1964 (2); 11 Nov., 1964], No. 47664/65. Headings H3A and H3T. In a synchrodyne receiver the local oscillator 3 is modulated by an auxiliary oscillator 7, and the auxiliary signal is recovered by a filter 5 from the output of an amplifier 4 and compared with the original signal in a phase detector 8, the output of which controls the tuning of the local oscillator 3. If the received signals are amplitude modulated the local oscillator is angle modulated and vice versa, and the modulation should be in a part of the spectrum little used by the incoming signal, e.g. an odd multiple of half the line deflection frequency for a T.V. signal. In the case of vestigial sideband T.V. signals, it is advantageous for the local oscillator to be locked 60 degrees out-ofphase relative to the carrier. The T.V. receiver shown in Fig. 5 includes two mixers 1 and 17 fed be respective local oscillators 3 and 18 controlled by respective tuning units 10 and 27, one of which receives the phase locking voltage output from a filter 30 and the other a voltage set by potentiometer 28 or 29 according to the position of switch 26. To widen the pull-in range of the system an output is taken from the frequency discriminator 21 in the audio channel and fed through an R-C filter network 24 to unit 25 where it is added to the control voltage derived from the phase detector 8. Transistor amplifying circuits.-A video amplifier (Fig. 6, not shown), comprises four transistors, of which the first, 39, and third, 45, are arranged in common-collector configuration and have their emitters directly coupled to the bases of the second and fourth transistors 43 and 46 which are arranged in common-emitter configuration. An A.G.C. voltage is applied over line 42 to the base of the first transistor 39.
Patent GB-1177748-A (GB)
Title: Improvements in or Relating to Reverse Osmosis Membranes
IPC: D01F6/60
Filed: 1968-10-09
Abstract: 1,177,748. Reverse osmosis membranes. E. I. DU PONT DE NEMOURS & Co. 9 Oct., 1968 [11 Oct., 1967], No. 47776/68. Heading B5B. [Also in Division B1] A reverse osmosis membrane comprises a substantially linear, aliphatic polyamide having a thickness of 2-75Á and which has, when dry, (a) a crystal perfection index, determined by wide-angle X-ray diffraction of at least 90, (b) a small-angle X-ray diffraction pattern indicating the presence of scattering centres having an extra plated intercept scattering intensity at zero scattering angle of 50-220, when determined by the Dismore small-angle soft X-ray method, and calculated by the method of Guinier and (c) a water permeability of 50- 50,000 gall/day/1000 sq. ft. under the influence of an effective reverse osmosis pressure of 1000 p.s.i. The calculations necessary for the above factors are detailed in the Specification. The membrane is made by treating a polyamide membrane of appropriate thickness with a composition comprising (A) 1-100% of a treating agent which is selected from (i) a protonic acid having a pKa in water not greater than 10À3 and a pH in 0À01M aqueous solution not greater than 6À3 at 25 C., (ii) a lyotropic salt (defined in the specification) or (iii) a Lewis acid which is an aluminium halide of Formula AlX 3 , where X is Cl or Br, or a boron halide of formula BX<SP>1</SP> 3 , where X<SP>1</SP> is F, Cl or Br, and (B) 0-99% of a solvent for (A) which is inert to both (A) and the membrane, and is essentially a non-solvent for the membrane, at a temperature at least high enough to maintain the composition as a single phase, but below its b.pt., for at least one second, the conditions of temperature, time, concentration of (A) and choice of (B) being such that, when the membrane is dried to constant weight, treated as above, and again dried to constant weight, a weight loss of 1-35% is obtained, the treated membrane being finally rinsed in a medium containing at least 25% of water, and which is a solvent for (A) and is essentially inert to the treated membrane under the rinse conditions. The membrane may take the form of a flat film or hollow filament. Nylon 6 and nylon 66 are exemplified. Many treating agents are listed, the following being exemplified (stated as treating agent/solvent); formic acid/water; HCl/water; trichloracetic acid/water; chloroacetic acid/OHCl 3 ; H 3 PO 4 /water; formic acid/ CHCl 3 ; glacial acetic acid; o-chlorophenol/ EtOH; phenol/pyridine; phenol/water; chloralhydrate/water; KSCN/MeOH; FeCl 3 /MeOH; CaCl 2 /aq. MeOH; CaCl 2 /aq. dimethylacetamide; ZnBr 2 /water; ZnCl 2 , Zn(NO 3 ) 2 .6H 2 O, CoCl 2 , Co(NO 3 .) 2 .6H 2 O, MnCl 2  or MnBr 2 .4H 2 O/ MeOH and BF 3 /MeOH. Washing may be effected with pure water, ethanol, or aq. NaOH. The membranes are especially useful in removing SO 4 -and PO 4 -ions from brackish water.
Patent GB-1062210-A (GB)
Title: Apparatus for pulling out stakes, posts and the like set in the ground
IPC: E04H12/34
Filed: 1965-11-12
Abstract: 1,062,210. Arrangement of jacks for lifting posts &c. EBERHARD DORNFELD, [trading as DELMAG MASCHINENFABRIK REINHOLD DORNFELD]. Nov. 12, 1965 [Nov. 20, 1964], No. 48123/65. Headings B8B and B8J. An apparatus for withdrawing posts 1 &c. from the ground comprises a pair of jacks 7, 8 on opposite sides of the post, a clamp 2 holding the post and adapted to be lifted by the jack cylinders and a pair of connection frames 15, 15<SP>1</SP> mounted between and articulated to the jacks and in engagement with the post 1. Each end of the clamp 2 is attached to the two ends of a cable 5<SP>1</SP> passing over a pulley 6<SP>1</SP> on the end of the movable cylinder 7. The upper connection frame 15<SP>1</SP> is articulated to lugs 16 on the cylinder 7, further holes being provided in the lugs for lifting the whole apparatus. The lower frame 15 is articulated to the pistons 8, the lower ball ends 9 of which are stated in sockets 10 on bases 11. Each connection frame 15<SP>1</SP>, 15<SP>1</SP>, Fig. 2 (not shown), comprises a pair of opposed U-shaped members whose free ends telescope together and are normally held in the fully telescoped position by a compression spring arrangement within the said ends. Four buffers adjustably positioned on each connection frame, are spring urged into engagement with the post 1.
Patent GB-1361850-A (GB)
Title: Random digital code generator
IPC: H04L9/26
Filed: 1971-10-20
Abstract: 1361850 Digital transmission; ciphering systems DATOTEK Inc 20 Oct 1971 [15 April 1971] 48723/71 Heading H4P In a random code generator a plurality of shift registers which may have numbers of stages prime to each other, are interconnected by a circuit to produce a random digital stream. The mode of operation of the shift registers may be varied randomly together with a number of steps during modes of operation. A read-only memory may introduce further randomization of the stream. During a timing mode, synchronizing signals for both transmitter and receiver may be generated. The system may comprise eight-stage interconnectible registers 100, 102, a fifteen-stage load register 104, a code for the day register 106 and a mode register 108 which controls configuration of registers 100, 102 in a number of modes as follows:- Load register 104 may be connected to accept the code for a day fron thumb wheel switches (36, Fig. 1, not shown) connected to inputs 170 or alternatively may be set from a teleprinter keyboard through CGD input, AND gate 182 and OR 184. Information in register 104 is transferred serially to register 106. The idle mode is terminated on arrival of an initiate signal IP at AND gate 124 causing content of register 102 through gates 118, 120, 122 to pass to register 100 hence the first 15 bits comprise prime data which is transmitted through gate 270 to a receiver to synchronize operation. In a receive mode registers 100, 102 receive and are loaded with data identical to that at the transmitting end and thence continue to generate identical random streams. To place system in a "prime" mode, a signal PVT is applied to gate 250 which issue a P signal to gate 176. When Q1 of register 100=1, enabling gate 176, the next SC signal turns flipflop 178 on, placing system in a prime mode. To ensure registers 100, 102 are correctly primed a "1" is applied to a Q8 of 102 which is dependent on a "1" on Q1 of 100. At completion of priming, register 106 is connected to form a 17-stage maximal length register with exclusive OR 194 combining Q14, Q17 outputs of register 106 and feeding back through gates 188 to register 106. Gates 198, 202, 204, and 208 operate as a circuit to combine non-linearly, according to a Carnaugh map, linear data from 100, 102, 106 which is applied to flip-flop 210 to generate key bit signals. Mode control register 108 is utilized to control registers 100, 102 and three-stage counter 222. A read-only memory ROM may further randomize output to register 108 by mod-2 addition in gate 212. Random numbers r are applied to counter 222 which gives a random output governing the number of steps between generation of key bits ranging from 4-7, in the case of a three-stage counter, depending on the state of Q5, Q7 of register 108. Count of 222 advances registers 100, 102, 106, 108 r steps simultaneously. Generation of signal FSS ensures that registers do not lock in an "all zeroes" position.
Patent GB-985868-A (GB)
Title: Improvements in and relating to railways and runners therefor
Inventor: RILEY DEREK ARNOLD
IPC: E01B25/24
Filed: 1962-12-28
Abstract: 985,868. Elevated railways. BECKETT, LAYCOCK & WATKINSON Ltd. Dec. 18, 1963 [Dec. 28, 1962], No. 48898/62. Heading B7L. A railway comprises a rail 10 defining two tracks 20, 22 engaged by side-byside coaxial wheels 14, 15 made of a synthetic material e.g. nylon. Wheel 14 rotates on a spigot 12 fixed to plate 11 and wheel 15 has a stub shaft 17 rotatable in a bore in spigot 12. A sliding partition can be attached to plate 11. Other shapes of tracks and rollers are disclosed in Figs. 3, 4, not shown.