baber/WOPTO huggingface dataset:
Patent GB-1264168-A (GB)
IPC: A23C9/12
Filed: 1969-04-25
Abstract: 1,264,168. Yogurt. ATABS. ASHA. 25 April, 1969, No. 21328/69. Heading A2B. [Also in Divisions C6 and H5] A method of making yogurt involves subjecting inoculated milk to a slow and gradual heating so as to bring the milk up to a temperature of about 42‹C at the end of about 7 hours or more and then maintaining the milk at this temperature for a sufficient time to allow the yogurt to form without any substantial deteriation of its desirable properties, e.g. for 5 hours or longer. Specified rates of heating are 2 to 10 calories per hour per litre of inoculated milk at 35‹C and 1-3 calories per hour per litre at 40‹C. The apparatus consists of a milk bottle 3, Fig. 1, surrounded by a layer of polyurethane foam 7 located between plastics inner and outer walls 5 and 4, respectively, and typically a 7-watt electric resistor 6 arranged adjacent the inner wall. The resistance of the resistor is so determined that when the milk temperature reaches 42‹C the heat it provides balances the heat loss of the apparatus and contents.
Patent GB-1264347-A (GB)
IPC: B29C48/10
Filed: 1969-08-26
Abstract: 1,264,347. Calibrating tubular film. WINDMOLLER & HOLSCHER. 26 Aug., 1969 [10 Oct., 1968], No. 42438/69. Heading B5B. The size of tubular film of thermoplastic materials, produced by the blowing process, is regulated by a calibrating device comprising a plurality of support rings axially arranged one above another at spaced intervals, each ring consisting of a circular spindle having a rotatable covering of heat-resistant, non-adhesive, material, the rings being so disposed as to completely surround the tubular film in the region in which it is still plastic. The covering may be in the form of a thin-walled flexible covering e.g. silicone rubber tube supported on the spindle by freely running rollers or may comprise individually rotatable rollers of polytetrafluoroethylene, for example. As shown the support ring 14 has a spindle 14<SP>1</SP> carrying a covering 15. The spindle is attached to a support 16 via clamps 20. In another embodiment (Fig. 3, not shown), two spindles are bent in a semi-circular shape and two supports are therefore required. The circumference of the support rings can be infinitely varied by shifting the ends of the spindles in the clamps.
Patent GB-1266288-A (GB)
IPC: E01D15/22
Filed: 1970-05-27
Abstract: 1,266,288. Amphibious vehicles. KLOCKNER-HUMBOLDT-DEUTZ A.G. 27 May, 1970 [27 May, 1969], No. 25375/70. Heading B7A. [Also in Division E1] An amphibious bridging vehicle has a pair of laterally extendable articulated float structures 6-8, the inner floats 6 of which can move from the inoperative Fig. 4 position to either of the operative positions of Fig. 5 or 7, by swinging through no more than 90 degrees. The floats are moved by fluid pressure rams (14, 16, 17) to provide the high buoyancy close coupling arrangement shown in Fig. 5, or the long reach arrangement of Fig. 7. To further reduce the width of the top of the vehicle, to facilitate its transport by rail, the floats are movable to the position illustrated in Fig. 14 (not shown). Float carrying section 1 is connected at its ends to wheeled steerable power units (3, 3<SP>1</SP>) adapted to drive the vehicle through either the road wheels, or pairs of contra-rotating propellers.
Patent GB-1266448-A (GB)
IPC: H01L29/00
Filed: 1969-05-07
Abstract: 1,266,448. Thin film transistors. WESTING- HOUSE ELECTRIC CORP. 7 May, 1969 [15 July, 1968], No. 23267/69. Heading HlK. The semi-conductor layer and source and drain electrodes of a thin film IGFET with a symmetrical I-V characteristic are disposed on an insulation coated electrically conductive substrate which also serves as gate electrode. The semi-conductor has a carrier concentration of at most 5 10<SP>16</SP>/cc. and is provided with an insulating protective coating. Suitable materials for the substrate are nickel, aluminium, copper, tin, tantalum, tungsten, molybdenum, beryllium, magnesium, gold, silver and platinum, base alloys thereof, ferrous base alloys, and suitably doped silicon, while the insulation coating may consist of an oxide of the substrate metal, of lead borate, silicate or borosilicate glass or of epoxy, polyester, silicone, or polyurethane resin with or without a filler of anodized aluminium or beryllia particles. Semi-conductors specified are tellurium, cadmium sulphide or selenide, indium or gallium arsenide, tin oxide or lead telluride in any crystalline form, and gold, silver, nickel, indium, aluminium and base alloys thereof can be used as ohmic source and drain electrodes. In the embodiments the protective insulating coating consisting of silicon monoxide or dioxide, alumina, calcium or magnesium fluoride, the glasses specified above, or polymers of hexachlorobutadiene, divinyl benzene, aryl sulfones, fluorinated alkenyls and paraxylene. It is particularly convenient to mass produce single devices or groups of interconnected devices in a continuous process by drawing a substrate in the form of a flexible tape successively past vapour deposition, electrical testing, and encapsulating stations in a vacuum enclosure prior to subdividing into individual devices or groups. Suitable apparatus for this purpose is described in outline. After precleaning by specified techniques the tape is driven in steps past the various stations. The deposition steps may be effected at a single station equipped with sources of the various materials to be deposited, a mask changing arrangement and a thickness monitor, or the deposition stations may be spaced out along the path of the tape. Isolation between elements of a group may be effected where necessary by cuts extending through the conducting part of the substrate. The-substrate may alternatively be a silicon-wafer containing other integrated circuit elements dimensions of the various layers are specified.
Patent GB-1288925-A (GB)
IPC: H03K17/98
Filed: 1969-11-15
Abstract: 1288925 Touch operated switches PLESSEY CO Ltd 30 Nov 1970 [15 Nov 1969] 56029/69 Heading H3B [Also in Division G4] A touch operated electric device comprises an A.C. generator G which has one terminal grounded and the other one connected to a touch contact TWC via a resistor R. When a finger is placed on the contact, there is a capacitance TC between the contact and ground so that A.C. current flows through resistor R and is detected. In Fig. 1, a diode is connected across the resistor to provide a voltage which switches transistor T on to provide an output signal at the collector. The screen of the lead to contact TWC is returned to the live side of generator G to minimize self capacitance losses in the lead. The generator may operate at 150 kHz. FET.-In place of the bipolar transistor, an FET may detect the A.C. current flow, Fig. 2. No diode is necessary in this circuit. A potentiometer VR1 allows in phase outputs due to stray capacitance to be balanced out.  Differential amp.-Fig. 3 shows two touch contacts with a common sensing circuit DA. Resistors RX, RY form two arms of a bridge, the touch capacitances forming the other two. VR2 allows the bridge to be balanced under quiescent conditions. Diodes D1-D4 and resistors R3-R6 protect the inputs of DA. The phase of the output O/P depends on which contact is touched. Coded displays.-Fig. 4 shows 32 contacts TW1-TW32 in a binary coded touchwire display. Each pair of contacts is connected to sensing circuitry SM1-SM16 as above, and the output from these circuits goes to a binary coding strapping field via a high pass capacitor and a pair of diodes which act as threshold devices. The signals from this field pass to binary digit amplifiers BDA1-BDA5 whose outputs are a binary coded indication of the activated sense circuit. Phase detectors PD1-PD5 give O (odd) or E (even) outputs depending on the phase at their inputs, and all the O and E signals are fed to respective OR gates G1, G2. The outputs of these gates go to OR gate G3 to drive a trigger G3 which gives a signal A when a contact is touched and a signal B when the touch ceases. Signal A sets output toggles TB1-TB5 in response to signals from OR gates G4-G7 on lines D2-D5, while bit 1 of the code is set by the output from OR gate G2. Signal B indicates to an associated data processing device (not shown) that a contact wire has been touched, and the processing device then reads the signals at the outputs DB1-DB5 before giving a reset signal RS. In practice, further circuitry is used to ensure that only touches exceeding a certain duration give an output; it is also necessary to ensure that only one contact at a time may be touched.
Patent GB-1290413-A (GB)
Inventor: COLL-PALAGOS M
IPC: C25F3/16
Filed: 1970-09-11
Abstract: 1290413 Modifying engraved surfaces STAUFFER CHEMICAL CORP 11 Sept 1970 [15 Sept.1969) 43565/70 Heading C7B [Also in Division B6] An engraved surface suitable for use in embossing, such as a roller, plate or die is improved by electro-polishing, electro-plating with a metal having a high to medium levelling effect, and electro-plating with another metal having a relatively lower levelling effect. The three steps may be performed in any order. The high-medium levelling effect metal may be copper, iron or nickel, and the lower may be chromium or nickel. Where a roller is used it may be constructed of ferrous alloys, aluminium or its alloys or metal coated plastics material. The substrate for engraving may be drapery material, upholstery, table cloth fabric, leather, reptile or animal skin, wood, tapestry, carpeting, aluminium foil, linoleum, vinyl materials or paper. The engraving may be by hand, machine, chemical or photo-chemical techniques. Where copper is used for plating an initial copper flash may be given in an alkaline cyanide medium. In an example the electro-polishing medium contains H 2 SO 4  15%, H 3 PO 4  65% and H 2  CrO 4  6%, the copper flash contains Cu(CN) 2 , NaCN, Na 2 CO 3  and NaOH, the copper plating bath contains CuSO 4 , H 2 SO 4  and chloride ions and a chromium plating bath contains H 2  Cr 4  and H 2 SO 4 .
Patent GB-1290452-A (GB)
IPC: B65G47/14
Filed: 1971-01-14
Abstract: 1290452 Orienting articles S S AIDLIN and S H AIDLIN 14 Jan 1971 1915/71 Heading B8S An apparatus for orienting and feeding open ended jars 26a comprises a cylindrical hopper 14 disposed on an upwardly inclined base 10, a jar moving ring 22 rotatably mounted on the inclined bottom of the hopper and having recesses 24 with pins 30 permitting only correctly oriented jars to fully enter the recesses with their open ends sitting over the pins 30, and being held in the recesses by a friction bar as the recesses are elevated prior to the jars falling into a discharge shoot 28. Incorrectly oriented jars 26b are prevented from registering with the friction bar due to the closed bottoms of the jars engaging the pins 30, whereby the jars fall to the lower part of the hopper bottom with elevation of the recesses. A trough 20 adjacent the lower part of the hopper bottom accommodates jars for feeding and the ring 22 passing therethrough picks up jars in its recesses. The friction bar overlies the ring 22 in its upper quarter of travel approaching the shoot 18 and is radially positioned such that only jars in the recesses positioned radially outwardly of the radially inner ends of the pins 30, are engaged thereby. In another embodiment, the jar moving ring is formed integrally with the hopper which is rotated on the inclined base.
Patent GB-1295478-A (GB)
IPC: C07D487/04
Filed: 1970-01-28
Abstract: 1295478 Benzimidazole derivatives H OGURA 28 Jan 1970 [29 Jan 1969] 4107/70 Heading C2C  The invention comprises compounds of formulµ wherein R 1  and R 2  are each alkyl or aryl, n is 0 or 1, and X is the anionic moiety of a physiologically acceptable salt. The benzimidazole compounds III and IV are prepared by reacting 2-aminobenzimidazole (I) with R 1 COCH 2 Y (II; Y= halogen) in presence of a solvent, or the above 2-aminobenzimidazole derivative (III) is converted to the 2-iminobenzimidazole derivative (IV) by reaction with II in presence of a solvent. The mono-substituted (V) and disubstituted (VI) iminobenzimidazoles are prepared by treating III or IV, respectively, with an aqueous alkaline soln., or by refluxing them in a solvent, or V may be converted to VI by reaction with II. In Examples 11 and 12, V and VI (R 1 =Me 1 R 2 =MeCOCH 2 ) are obtained directly from I and II (R 1  =Me, Y=Br). Therapeutic compositions comprise compounds of the above formulµ, which are stated to have antibiotic and antiviral activity. Administration may be oral, parenteral or topical, or by means of an inhalation powder or aerosol.
Patent GB-1301220-A (GB)
IPC: A63F7/06
Filed: 1971-06-16
Abstract: 1301220 Model footballer D B RITCHIE 16 June 1971 28255/71 Heading A6H In a model footballer, one leg 4 is manually pivotable with respect to the body 2 against a coiled torsion spring 10, the spring being at least partly concealed from view in a recess 11. The leg 4 may be retained on a pivot pin 3 by a cap 6, or the pin may have a terminal enlargement. A stud may be provided on the rear of the heel of the leg 4 in order that it may be more readily pulled back manually. An arm may also be constructed for sprung pivotal movement. The model may be formed from plastics, wood, or metal.
Patent GB-1305631-A (GB)
IPC: A47B87/02
Filed: 1970-05-14
Abstract: 1305631 Test tubes racks N R BERGQUIST S H SKOLDENFELT and J A SODERHOLM 14 May 1970 23454/70 Heading B1X A test tube rack is constructed from one or more plates 3 (Fig. 1) without holes and serving to support the bottom portions of the test tubes and other plates 1 provided with holes 2 (Fig. 4) for guiding the test tubes, together with spacing rods 5 for holding the plates in predetermined parallel relationship to one another, each spacing rod being provided with at least two annular grooves 6 (Fig. 3) having a width substantially equal to the thickness of the plates, and the plates being provided at the edges with cut-out portions 4 each of which mates with one of the grooves, the rods and/or plates being resilient so that the rods are resiliently-engageable with the plates when the edges of the cut-out portions of the plates and the grooves in or on the rods are pressed together. Each rod 5 has a hole 7 at one end and a pin 7 at the other end, so that the rack may be built up to any desired height, the number and spacing of the grooves in the rods being such that makes it possible to assemble the plates at any desired height and in any desired number. The plates may be made of acrylic resin; and the rods may also be made of synthetic plastics material. In modified racks, the rods may be provided with flanges which have grooves, or with flanges and lugs which form grooves.
Patent GB-1306362-A (GB)
IPC: G03C5/56
Filed: 1969-05-08
Abstract: 1306362 Photographic materials and process KODAK Ltd 7 May 1970 [8 May 1969] 23454/69 Heading G2C [ Also in Divisions C1; B6]  A metal pattern is formed by treating (1) a layer comprising (a) a metal compound which will disproportionate in water, acetone or dilute aqueous mineral acid or alkali to give the metal and a compound of the metal in a higher oxidation state, and (b) a patternwise distribution of nuclei which catalyse the disproportionation, with (2) a processing medium which causes the disproportionation in the presence of the nuclei. Preferably the layer contains Cu 2 O, bismuth sub-chloride, In I, In Br, In Cl, TeCl 2 , TeBr 2 , TeI 2 , Hg 2 I 2  or Hg 2 Br 2 , which may be dispersed in a binder, and the nuclei are formed by imagewise photographic exposure. Processing media other than those used to test the suitability of (a) may be used to effect the disproportionation (e.g. an organic liquid or a solution of a complexing agent or a non-mineral acid), and the image produced may be fixed. In another embodiment, BiCl 3  formed by the disproportionation of bismuth sub-chloride is transferred to chamois leather and then reduced by hydrazine hydrate or hydrolyzed.
Patent GB-1310199-A (GB)
Title: Apparatus for teaching or testing an applicant
IPC: G09B7/06
Filed: 1971-10-11
Abstract: 1310199 Educational appliances GEMCO Inc 11 Oct 1971 47206/71 Heading G5G A question-and-answer type teaching apparatus comprises a projector, a plurality of slides each presenting a question to be answered and arranged for projection one at a time on to a screen, and means for automatically advancing the slides in a random unpredictable sequence. In operation, a counter is selectably connected to receive and count pulses from a clock, the counter recycling from "one" to a preselected maximum number "n" without passing through zero; the counter is stopped when a score switch is actuated to indicate a selected answer to the question on the slide under consideration, and the projector is then advanced the number of slides corresponding to the count at which the number is stopped. The apparatus includes a control panel (20) which is associated with display units (10) incorporating a screen (12), answer buttons (16) and the score switch (18) Figs. 1 to 4 (not shown).
Patent GB-1314341-A (GB)
Title: Refrigeration system
IPC: F25B5/00
Filed: 1969-08-07
Abstract: 1314341 Refrigeration FISONS SCIENTIFIC APPARATUS Ltd 31 July 1970 [7 Aug 1969] 39601/69 Heading F4H The environment in a chamber 1 is controlled within variable temperature limits by a compression-expansion refrigeration system having a continuously-operating compressor 3, condenser 4, expansion valve 5 and two heat exchange coils 2, 7, within and without the chamber respectively. The system operates continuously but the flow of refrigerant may pass at least partially to one or other of the coils under the action of thermostatically controlled valves 8, 9. The valves 8, 9 may be replaced by a single proportioning type valve and the refrigerant from the coil 2 within the chamber may pass to the coil 7 prior to passage to the compressor 3. A back pressure valve 6 is provided at the refrigerant outlet from the coil 2. An additional heat exchange coil may also be mounted in the chamber in parallel with the coil 2 and have a valve to control the flow of refrigerant therethrough independently of the flow through the coil 2.
Patent GB-1315463-A (GB)
Title: Control apparatus for actuating a cutter
IPC: G03D15/04
Filed: 1971-05-20
Abstract: 1315463 Electric correspondence control systems PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 20 May 1971 16071/71 Heading G1N [Also in Division G2] An original 3 (Fig. 1) to be copied is placed on a platform 1 with one edge covering a resistance strip 2. A flexible top layer 4 having an electrically conducting strip 5 is placed over the original which thus acts as an insulator between the strips, the remaining parts thereof being short circuited. The strips 2, 5 act as a variable resistor (6) Fig.2. As copying material (15) is fed from a storage reel (14), the effective value of a resistor (7) is increased. When a certain ratio between the resistors (6, 7) is reached, a relay (10) operates a cutter (17) to cut off a length of the material (15) corresponding to the original length. In another embodiment Fig. 3 (not shown), the relay (10) is operated by a threshold switch (20) instead of by a transistor (9). The strips 2, 5 may be magnetic.
Patent GB-1316565-A (GB)
Title: Chimney stack structures
IPC: E04H12/28
Filed: 1971-03-19
Abstract: 1316565 Multiple chimneys MITSUBISHI JUKOGYO KK 19 May 1971 7378/71 Heading F4J In a chimney stack structure three steel chimneys 1, 2 and 3 are disposed on a foundation 4 and connected together at several levels by  horizontal beams 5 and also connected to a central ring 6 enclosing a further chimney 7 so that the latter may slide vertically with respect to the ring. Modifications show four chimneys arranged round a central one (Figs. 2 and 4), three chimneys arranged round two central ones (Fig. 5) and four chimneys also arranged round two central ones (Fig. 6). Further arrangements show six chimneys forming with their connecting beams a hexagonal structure arranged round a central chimney (Figs. 7-9).
Patent GB-1317208-A (GB)
Title: Bearing and sealing assemblies
IPC: F16J15/32
Filed: 1970-08-22
Abstract: 1317208 Seals ARMSTRONG PATENTS CO Ltd 19 Aug 1971 [22 Aug 1970] 40526/70 Heading F2B  Bearing and sealing means for the piston-rod 16 of a shock absorber comprises a bearing guide member 14 and a resilient seal which is located between the guide member and a retainer 24 and has a radially outwardly directed membrane 34 clamped between the guide member and the retainer. Lubricating oil is supplied through a passage 30 to a space between the seal and guide member containing a spring 26 and backing washer 28. An 0-ring 32 is clamped between the retainer and the guide member.
Patent GB-1320331-A (GB)
Title: Rotary cultivator blade assembly
IPC: A01B33/08
Filed: 1969-08-07
Abstract: 1320331 Rotary cultivator blade assembly ROTARY HOES Ltd 5 Aug 1970 [7 Aug 1969] 39605/69 Heading A1B A rotary cultivator blade assembly comprises a shaft 10 and two blades 13, 14 having contoured ends 17 to engage the shaft; the blades being generally L-shaped in end elevation and secured by a common securing means to the shaft. As described a bolt (not shown) passes through holes 16 in the blades and through a hole 12 in a flange 11 fast with the shaft.
Patent GB-1324971-A (GB)
Title: Duplicating stencils
IPC: B41N1/24
Filed: 1972-01-04
Abstract: 1324971 Stencils GESTETNER Ltd 4 Jan 1972 [4 Jan 1971] 310/71 Heading B6C A stencil blank, adapted to be cut by an electric stylus comprises two adjacent thermoplastic layers, each having electrically conductive particles dispersed in it, one of the layers being ink-impervious having a higher electrical resistance than the other and having semiconductor particles also dispersed in it. The electrically conductive particles may be of carbon, and the semi-conductor particles of silicon, germanium, cuprous oxide, cadmium sulphide, cadmium selenide or indium oxide. The thermoplastic layers may comprise polyvinyl chloride, polyvinylidene chloride, polyvinyl butyral, polyvinyl formal, a vinyl chloride/ vinyl acetate copolymer or a mixture of any of these. The layer of higher resistance may be impregnated into a layer of stencil tissue, and may comprise plasticized nitrocellulose or cellulose acetate propionate (in place of a vinyl resin), the other layer being either coated upon it or upon the face of an adjacent backing paper. The layer of higher resistance may be built up from multiple sub-layers, and its surface may be given a grey colour by addition of titanium dioxide, zinc oxide, zinc sulphide or mixtures thereof.
Patent GB-1324997-A (GB)
Title: Manufacture of an article having a contoured surface
IPC: B23P13/00
Filed: 1969-10-30
Abstract: 1324997 Making parts for die pressing PRESSED STEEL FISHER Ltd 29 Oct 1970 [30 Oct 1969] 53288/69 Heading B5A [Also in Division B3] Parts for use in die-pressing &c. are made by machining grooves 14 in a workpiece 13, Fig. 1, casting a second member 17 on the workpiece, Fig. 2 (not shown), removing the second member 17 and filling the grooves therein with material 18, Fig. 3, which is initially manually-workable, and then removing excess material 18 with a strickle 19 to form a contoured surface 16. As described, a synthetic resin 17 is moulded on to the workpiece 13, in which the grooves 14 have been milled in a numerically-controlled machine. The material of the workpiece and of substance 18 is not specified, except that the substance 18 should have a contrasting appearance to that of member 17 to facilitate the strickling operation.