baber/WOPTO huggingface dataset:
Patent GB-1225360-A (GB)
IPC: G21C15/22
Filed: 1968-01-26
Abstract: 1,225,360. Fuelling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 15 Jan., 1969 [26 Jan., 1968], No. 4348/68. Heading G6C. A standpipe 13 of a gas-cooled reactor has its cylindrical body 18 extending upwardly from the inner surface of the concrete pressure vessel 11 to a fuelling machine (not shown) connectible to an upper extension 21 of the standpipe. A charge tube 30, aligned with the standpipe, extends through a coolant outlet plenum 37 formed between the pressure vessel 11 and a concrete diaphragm 12 and is carried by the latter by means not shown. Apertures 35 in the charge tube 30 permit coolant to flow from the corresponding fuel element channel in the reactor core into the plenum 37. When fuelling a channel it is necessary to reduce the coolant flow and this is achieved by an inner sleeve 14 rotatably supported by bearings 25, 27 in the standpipe body 18, the sleeve extending into the charge tube 30 and having elongated apertures 36 which may be aligned with the apertures 35. An annular gear 17 on the sleeve 14 enables it to be rotated by a shaft 16 through a pinion 15 and thus control the coolant flow.
Patent GB-1226139-A (GB)
IPC: B23K9/10
Filed: 1968-08-30
Abstract: 1,226,139. Arc welding control systems. DYNATECH CORP. 30 Aug., 1968 [30 Aug. 1967], No. 41629/68. Heading H2H. Arc welding apparatus of the type having a main electrode and a retractable pilot electrode and a source of inert gas for shielding the arc during welding and the subsequent cooling of the weld is provided with a shift register having a plurality of stages each stage of which after the first is triggered by the preceding stage, the first stage turning on the gas supply, the second stage controlling the welding current, the third stage turning off the welding current and the fourth stage turning off the gas supply. Initially a switch 98 is closed manually whereby a signal is produced on line 93 to trigger thyristor 89 to energize operating coil 88 thus opening valve 26 in the gas supply to purge the gas lines and the welding area before welding is begun. A welding operation is begun by momentarily closing switch 170. This provides a signal from a resistor 174 to trigger a thyristor 184 in the first stage 68 of the shift register. A signal now appears on line 93 causing the valve 26 to open to supply gas to the electrodes as when switch 98 was closed. After a time determined by variable resistor 192 a signal is produced by a capacitor 198 to trigger a thyristor 212 in the second stage 70 of the register. The output signal from this stage is effective to cut off the thyristor 184 in the first stage 68; to maintain the signal on line 93 by way of resistor 219 to keep the valve 26 in the gas line open and to provide a signal on line 112. This latter signal is taken to one base of a unijunction transistor 110 and by way of a timing capacitor to the gate electrode of a thyristor 166. The transistor 110 forms part of a phase control circuit for a transformer 134 the secondary windings of which are used to gate back-to-back thyristors 46, 48 in the welding current supply circuit, the phase control being variable by an adjustable resistor 136. The triggering of thyristor 166 after the time delay imposed by capacitor 156 energized coil 23 to retract the pilot electrode 22 thereby forming a pilot arc 34 which is extended to the workpieces 16 by the flow of gas. After a time determined by a variable resistor 220 a signal is produced to trigger a thyristor 228 in the third stage 72 of the register. This is effective to cut off the thyristor 212 in the second stage thereby terminating the flow of welding current but the signal on line 93 for the control of the valve 26 in the gas flow is maintained by the output of the thyristor 228. After a further time determined by a variable resistor 242 to allow the weld to cool a thyristor 252 in the fourth stage is triggered. Thyristor 228 is cut off thereby removing the signal on line 93 to end the flow of gas and thus to terminate the welding operation. An indicator lamp 225 is provided which is illuminated whilst welding current is flowing.
Patent GB-1227479-A (GB)
IPC: G01N1/36
Filed: 1969-09-19
Abstract: 1,227,479. Preserving and embedding freeze-dried materials. LEYBOLDHERAEUS-VERWALTUNG G.m.b.H. 19 Sept., 1969 [3 Oct., 1968], No. 46399/69. Heading A2D. Freeze-dried materials are preserved and embedded by treating the dried material with a preservative and then embedding the material in a degassed embedding material whilst the vacuum established for drying is maintained throughout these treatments. The material to be treated may be tissue which after the treatments, may be used for histological or histochemical purpose. A suitable apparatus for the process is shown in Fig. 1 wherein the material is positioned in a receptacle 1 which is positioned in a vacuum drying chamber 10. On completion of the freeze-drying process the closure 2 is lowered on to receptacle 1 to form a vacuum-tight seal, which seal may be completed by closure of valve 4. The sealed evacuated receptacle 1 may then be removed from chamber 10 and then connected to an apparatus which is provided with storage vessels for the preservative and embedding material (Fig. 2, not shown). This apparatus is evacuated, the embedding material degassed and then preservative and embedding material transferred to the freeze-dried material under evacuated conditions.
Patent GB-1228819-A (GB)
IPC: H01L29/93
Filed: 1968-10-09
Abstract: 1,228,819. Semi-conductor devices. VARIAN ASSOCIATES. 9 Oct., 1968 [12 Oct., 1967], No. 47924/68. Heading H1K. A surface barrier diode comprises a metal layer 7 forming a rectifying junction with a silicon wafer, the wafer comprising an n + type substrate 1 on which is an epitaxial n type layer 2, that part of the epitaxial layer immediately beneath the metal layer 7 being a thin n + layer 4. The metal layer 7 contacts the silicon through a window 6 in a surface layer 3 of silicon dioxide to form a Shottky barrier, the metal being chromium deposited by vacuum deposition. A nickel layer 5 and gold layers 8 and 9 serve as electrodes. The thin n + layer 4 is formed during the application of the silicon dioxide layer 3 by an impurity accumulation effect, and to obtain satisfactory results this silicon dioxide layer must be formed within the temperature range of 1150 to 1250 C. in a time of less than 20 minutes.
Patent GB-1230721-A (GB)
IPC: B65D5/20
Filed: 1969-01-30
Abstract: 1,230,721. Raising dough. H. H. BRIDGFORD. 30 Jan., 1969 [25 July, 1968], No. 5167/69. Heading A2A. [Also in Divisions A4 and B8] A package comprises a receptacle 10 and a piece of frozen, yeast containing, unraised, developed dough, packaged in said receptacle, the receptacle comprising a bottom wall 12, a peripheral wall and closure means forming a top wall, the closure means being movable from the position closing the top of the receptacle to an open position projecting upwardly of the peripheral wall. As described the closure means is moved to the open position by the rising of the dough when the package is thawed out prior to baking. In a first construction the receptacle is made from a blank which consists of an outer layer of cardboard and an adherent inner layer of aluminium foil; the peripheral wall consists of front and rear wall panels 13 and two side panels 16 the panels 16 being connected to the panels 13 by tabs 17 having adhesive coatings on their inner faces; the closure means consists of panels 14 extending from the outer edges of the panels 13 and panels 18 extending from the outer edges of the panels 16; the panels 18 are connected to the panels 14 by tabs 19 having adhesive coatings on their inner faces and each panel 18 is provided with two fold lines G so that the panel is divided into a triangular gusset section 19a and two triangular side panel sections 20 so that the panel can be folded with the gusset section 19a assuming a horizontal position with the panel sections 20 being sandwiched between the panels 14 and the gusset section 19a in the closed condition in which the free edges of the panels 14 are substantially contiguous along their full lengths. In an alternative construction the panels forming the peripheral wall are connected together by tabs which engage slots and the closure means consists of four independent panels projecting from the outer edges of the wall panels with the panels connected to the side wall panels being folded down first and the panels connected to the front and rear panels being folded afterwards. The latter mentioned panels are provided with inwardly directed rectangular tabs which support the panels connected to the side wall panels in the open condition of the receptacle, the tabs in the closed condition being superimposed upon the outer faces of the side wall panels.
Patent GB-1231647-A (GB)
IPC: F16B2/24
Filed: 1968-06-11
Abstract: 1,231,647. Clips. F. T. PRODUCTS Ltd. 11 June, 1969 [11 June, 1968], No. 27765/68. Heading E2B. [Also in Division F2] In an assembly of a member (such as a knob 20) formed with a cavity, 19 an apertured shaft 18 housed in the cavity, and a clip 10 for securing the shaft in the cavity, the clip is of U shape and comprises a prong 14 or 15 projecting outwardly from one limb 11 and away from the web of the U, one of the limbs being formed at or adjacent to its free end with a projection 17 extending in the general direction of the other limb, the clip being located in the cavity with the prong engaging a wall thereof and with the one limb projecting from the cavity and having the projection 17 located in the aperture 21 in the shaft 18, which latter is located between the two limbs of the clip.
Patent GB-1233548-A (GB)
IPC: F16J15/32
Filed: 1967-11-03
Abstract: 1,233,548. Seals. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 1 Oct., 1968 [3 Nov., 1967], No. 50200/67. Heading F2B. A seal for a closure plug in a nuclear reactor comprises a stack of at least three metallic cups nested together so that their flexible walls 2 contact each other, the rims 5 of the walls being continuous and unbroken. As shown, cups of stainless steel are held by a ferrule 3 on the member S and the flexible walls are ground at their rims to make peripheral sealing and sliding contact with a tube T. In another embodiment, the cups are of U-section, the flexible external and internal walls being ground to make both peripheral sealing and sliding contact with members T and S.
Patent GB-1239403-A (GB)
IPC: A41D13/00
Filed: 1967-08-10
Abstract: 1,239,403. Load carrying garments. I. W. S. NOMINEE CO. Ltd. 12 Aug., 1968 [10 Aug., 1967; 22 Sept., 1967], Nos. 36747/67 and 43300/67. Heading A3V. An upper garment for carrying loads has on each side of the front of the garment at least one load-carrying pocket 13, 14, 15 suspended from an element 11, 12 which may take the form of a thick, relatively inextensible load-bearing seam, or of a band of inextensible material concealed within the garment. The upper end of the element is attached to the respective side of the upper part of the garment adjacent in wear to the base of the neck, the said element being formed of material less extensible than the principal material of the garment. The garment may be a coat or jacket with or without sleeves, and of particular use in engineering or agricultural work, or it may be an underjacket. In one embodiment the garment has a neck band portion 6 and is provided with pockets 13, 14, 15 which are suspended from relatively inextensible load-bearing seams 11, 12 which extend upwards to the neck band portion 6, whereby in use the weight of the pockets and of any contents thereof is transmitted by the seams and the neck band portion to the base of the neck of the wearer. The jacket is fastened by buttons 9. In another embodiment an underjacket is provided on each side in front with a pocket formed from or connected to a band of material the upper end of which is attached to the inner or upper shoulder region of the garment adjacent in wear to the base of the neck, the material of the said bands being less extensible than the principal material of the underjacket. The pockets have downwardly extending openings and the jacket may have a sliding clasp front fastener.
Patent GB-1251140-A (GB)
IPC: B26D7/02
Filed: 1969-09-30
Abstract: 1,251,140. Cutting apparatus. BRITISHAMERICAN TOBACCO CO. Ltd. 18 Sept., 1970 [30 Sept., 1969], No. 48008/69. Heading B4B.  A guillotine apparatus for cutting strips 18 from sheet material comprises a advancable back stop 1 and a pressure plate 3, the effective backstop face 12 presented to the sheet material being provided by interengaging top and bottom bars 8, 6, the top bar being depressable by the descending pressure plate when the bar has reached a position in which it projects under the plate. The bottom bar 6 is formed with tongues 9 engaging in grooves 10 formed in the top bar 8 the two bars being accurately aligned by means of dowels 13; springs 15 are mounted over the dowels for returning the top bar; its upward movement may be limited by adjustable screws. The bottom bar is secured to the back stop 1 by means of screws (17), Fig. 1 (not shown). The bars may be produced by machining or moulding.
Patent GB-1252635-A (GB)
IPC: B65B41/18
Filed: 1969-03-14
Abstract: 1,252,635. Making bags. HAYSSEN MFG. CO. 14M arch, 1969 [5 Sept., 1968], No. 13683/69. Heading B5D. [Also in Division B8] A web 10 of plastics film passes over an adjustable guide roller 11 and an idler roller 41 to a forming collar 28, the guide roller 11 being automatically adjusted by a fluid-operated control arrangement so that the web 10 is trained on to the forming collar in a controlled manner. At the collar 28 the web 10 is formed into a tube and a sealer 33 seals the web edges to form a cylinder of plastics film; transverse sealers 38, 39 on either side of the film, are operable to seal the film to provide individual packages for produce or other material, the packages being subsequently separated by cutting along the sealed portions. The control arrangement includes fluid sensors such as 42, 43 positioned adjacent the web edges to detect variations in the position of the web; signals representative of these variations are derived from the sensors and are applied by way of fluid amplifiers 54, 541 to cylinders 16, 19 having pistons 14, 18 which carry the ends of the roller 11 (Fig. 1, not shown),  whereby the pistons move to adjust the roller 11 so that the web is automatically maintained in correct alignment with the forming collar.
Patent GB-1266242-A (GB)
IPC: G21K5/02
Filed: 1969-10-09
Abstract: 1,266,242. Irradiation apparatus. ATOMENERGI A.B. 9 Oct., 1969 [9 Oct., 1968], No. 49641/69. Heading H5R. In a device for irradiating the blood of a patient, a hose for connection to an artery and a vein of a patient is arranged to extend through a tube on the outside of which beta-generating radio-active material is disposed, and around which a radiation shield is arranged. In the device shown, two tubes 2 bearing the radioactive material are employed, to permit both ends 8 of the polyethylene hose 7 to issue from the same side ofthe device. The shield is formed by a graphite sleeve 3 around each tube, together with a single surrounding lead shield 1. Each tube 2 is in the form of coaxial aluminium tubes held apart at their ends by aluminium spacers and a sealing mass of thermosetting plastic, the outer surface of the inner tube being coated with Sr 90 (Fig. 3, not shown).
Patent GB-1267120-A (GB)
IPC: B41F33/00
Filed: 1970-04-10
Abstract: 1,267,120. Machinery guards. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. 10 April, 1970 [10 April, 1969], No. 17278/70. Heading F2J. [Also in Division B6] A guard bar 6 for the nip of a pair of cooperating cylinders 1, 2 which rotate in opposite directions is so mounted that when one cylinder 2 is adjusted bodily relative to the other, the guard 6 is moved to maintain substantially constant its spacing a from the cylinders. In a three-cylinder printing unit shown, the cylinder 2 is mounted on eccentric bushes 4 pivoted by a ram 5 to adjust its position. A roller 12 on each bush 4 engages a slot 11 in an arcuate arm 7 supporting an end of the guard 6 from a fixed pivot 8. As cylinder 2 moves from position 2a to 2b, the guard 6 moves from position 6a to 6b. In Fig. 3 (not shown), the arms (7) are mounted on rings (13) rotatable coaxially of the cylinder (1). In Fig. 5 (not shown), support arms (15) having fixed pivots carry the guard (6) and rollers (12) coaxial therewith, the rollers (12) engaging guide-slots mounted on the eccentric bushes 4.
Patent GB-1288130-A (GB)
IPC: B21D53/90
Filed: 1970-07-07
Abstract: 1288130 Making axle housings; improving physical properties GORKOVSKY AVTOMOBILNY ZAVOD 7 July 1970 32832/70 Headings B3A and B3V An axle housing for a vehicle is made by cold pressing sheet metal blanks, welding a pair of pressed blanks to form the housing, heat-treating the housing by high frequency induction heating and cooling the housing, preferably with water. The metal of the blanks has a yield strength not over 30 kg./mm.<SP>2</SP> and a tensile strength not under 45 kg./mm.<SP>2</SP>. In an example a coldpressed sheet had a yield strength of 28 to 31 kg./mm.<SP>2</SP>, a tensile strength of 47 to 49 kg./mm.<SP>2</SP> and a Brinell hardness from 131 to 139. After heat treatment the values obtained were 50 to 80 kg./mm.<SP>2</SP>, 80 to 108 kg./mm.<SP>2</SP> and 321 to 387 (at the external water-cooled side) and 228 to 269 (at the inner side of the housing) respectively. The metal is preferably a low-alloy low-carbon steel.
Patent GB-1288832-A (GB)
IPC: G05D3/00
Filed: 1970-03-12
Abstract: 1288832 Automatic control of linear speed HERBERT MORRIS Ltd 19 April 1971 [12 March 1970] 11816/70 Addition to 1065562 Heading G3R [Also in Division H2] A sliding lift door is controlled by a linear induction motor B and a transistorized control circuit. The control circuit comprises a power supply, a reverse braking circuit 2, door minimum speed circuit 3, overspeed circuit 4 and a fail safe circuit 5. To open the door contact P3 is closed and the door accelerates at full thrust to its required speed, when the output of the tachogenerator D will cause the motor thrust to be reduced so that the door coasts at constant speed. On reaching a limit switch the motor thrust will reverse and brake the door to a standstill, when the tachogenerator output is zero the door slowly moves again to a final limit switch and stops. The closing sequence is similar except that a door edge safety switch P4 is provided in case the door meets an obstruction. If the door exceeds a set speed reverse thrust braking is applied. Resistances R 1 , R 2  are provided to slow the motor, although chokes or a transformer may be used instead, and contacts C 1 , C 2  are used to reverse the motor current. Footmat switch operation, or impulse operation using a photo-cell and a light beam may be used.
Patent GB-1289758-A (GB)
IPC: E04D13/17
Filed: 1970-02-20
Abstract: 1289758 Roof ventilation J A HOOKER and W M CRAIG 19 April 1971 [20 Feb 1970] 8208/70 Heading E1W A roof with an impervious covering, e.g. 16, is ventilated by a ventilator with a modified one-way valve 6 which allows only a controlled downward leakage under suction from inside the roof, but allows egress of air from the roof during the day and the night. The ventilator has an apertured base 1 and a cover 4 secured, e.g. by vanes 5, and a screen 9 arranged above the valve. The valve may, as shown, comprise a base 7 of, e.g. copper, with a bowled upper surface with radiating grooves (13) therein (Fig. 2, not shown) extending from a central aperture 10, the aperture normally being closed by a flexible disc 8, of rubber or plastics, which can, however, flex to allow some ingress of air. Alternatively, the disc could have radiating grooves, stopping short of the periphery. The tube 3 of the ventilator extends up into the cover 4 to prevent flooding of the ventilator. With a concrete deck 14, small holes are preferably formed therein for ventilation purposes.
Patent GB-1295625-A (GB)
IPC: H04N17/00
Filed: 1970-01-29
Abstract: 1295625 Measuring signal/noise ratio R A I RADIOTELEVISIONE ITALIANA 29 Jan 1970 [4 Feb 1969] 4354/70 Heading G4H In apparatus for measuring the signal-to-noise ratio of a television signal, the power of the noise is compared with a reference level in a comparator 10 (Fig. 1) which controls coarse and fine discrete attenuators 2, 6 which are switched in or out until the noise is reduced to a predetermined threshold value the value of the attenuation introduced being displayed. As described during predetermined line scans when the video signal is absent the noise is fed via the attenuators 2, 6, a squarer 7 and ena bled gate 8 to an integrator 9, the output of which is connected to the comparator 10. During each line scan in which the comparator is not triggered, a pulse is fed to a coarse counter connected to a decoder controlling pairs of relays in the attenuator 2 to reduce the attenuation by 10 decibels. When the comparator is operated, a fine decoder is set to zero to give a fine attenuation of 9 decibels and during succeeding line scans its attenuation is reduced by unit decrements under the control of a counter until the comparator triggers again. As described, attenuations of between 19 and 69 decibels are displayed. If the signal to noise ratio is less than 19 decibels the comparator triggers in the first line scan so that the output of the coarse decoder remains on 1 to inhibit the fine counter. If the ratio exceeds 69, the comparator is not triggered during six line scans, the coarse counter when it reaches a count of 7 having the same effect as the comparator when triggered so that the fine decoder is set to zero and an indication of 70 decibels is given.
Patent GB-1312047-A (GB)
Title: Book-ends
IPC: A47B57/58
Filed: 1969-07-14
Abstract: 1312047 Book ends; shelving partitions SAVAGE & PARSONS Ltd 21 July 1970 [14 July 1969 12 March 1970] 35435/69 and 12032/70 Headings A4B and A4U  An adjustable book end, suspended from a shelf to support books on a lower shelf, comprises a body 11 of spring steel strip having end portions 13a each frictionally fitted in a slot 14 in a rigid plastics attachment member 12 which has legs 16, 17 urged into releasable frictional engagement with upper and lower side walls 15a, 15b of a channel 15 beneath a sheet metal shelf 10, the leg 17 also abutting the base 15c of the channel to form a fulcrum round which the member rotates on an axis extending lengthwise of the shelf and in a sense to move the legs 16, 17 to engage the side walls to wedge the member in the channel. The legs 16, 17 are pressed towards each other by hand to relieve the wedging engagement for adjustment of the body along the shelf. In a modification, a plastics attachment member has a groove forming upper and lower parts which are connected by a pin which is a loose fit in an aperture in an end portion received in the groove so that the attachment member is rockable relatively to the end member. A friction shoe in the form of a rubber strip, buffers or a ring may be applied to the upper surface of the attachment member.