baber/WOPTO huggingface dataset:
Patent GB-1258507-A (GB)
IPC: F03C1/10
Filed: 1969-04-15
Abstract: 1,258,507. Hydrostatic transmission control. EMERSON ELECTRIC CO. 15 April, 1969 [10 May, 1968], No. 19151/69. Heading F2D. A control for a hydrostatic transmission comprises a main control valve assembly 20 having inlet and outlet chamber 26, 38 respectively connected to the pump delivery and return lines, motor chambers 32, 34 connected to opposite sides of a motor and pressure responsive valves 52 ... 55 between the inlet chamber 26 and each motor chamber 32, 34 and also between each motor chamber and the outlet chamber 38. The pressure-responsive valves are biased towards a closed position by springs 61 and control pressure supplied through ports 62. Control pressure lines 63, 64 connect the valves in pairs 52, 55; 53, 54 and are supplied with pressure liquid from the inlet chamber 26 through throttle valves 72a, 72. The pressure in the control lines 63, 64 downstream of the throttle valves is controlled by a manually operated pilot valve 23. With a handle 118 of the pilot valve 23 in the position shown valve elements 88, 89 of the pilot valve are biased by springs 123 to a closed position in which they block exhaust from the control lines 63, 64. Inlet chamber pressure is thus supplied through ports 62 to the pressure responsive valves 52 ... 55 to hold the latter closed and the transmission inoperative. When the handle 118 is rotated a plunger 109 of the pilot valve opens the valve element 88 (or 89) to provide a throttled exhaust from the control lines 64 (or 63). The reduced control pressure applied to the pressure responsive valves 53, 54 (or 52, 55) permits the valves to partially open and thus provides a restricted flow to the motor. As the valve 88 (or 89) is progressively opened the corresponding pressure responsive valves open progressively to increase the flow to the motor. Adjustable throttle valves 77, 77a, 79, 79a in the supply lines to the pressure-responsive valve ports 62 control the response of the pressure-responsive valves to variations in the control pressures. A restricted by-pass 133 is provided between the motor chamber 134 and the outlet chamber 138 to prevent cavitation in the motor circuit.
Patent GB-1258563-A (GB)
IPC: E06B7/23
Filed: 1968-03-27
Abstract: 1,258,563. Draught and weather excluder strips. D. A. DUNN. 27 March, 1969 [27 March, 1968], No. 14837/68. Heading E1J. A two-part weather/draught excluder strip comprises a hard plastics or metal (aluminium) fixing strip 8 having along the length thereof an undercut groove 4 and a flat side plate 5, this latter being for securing the strip to one viz 11 of two relatively movable surfaces 10, 11 to be draught &c proofed, and a sealing strip 2 in the form of an arcuate or angular section integral with and extending on each side of a base portion on the concave side of the strip 2, this latter having projecting from the base portion a rib 4 provided along its free edge with an undercut bead for insertion into the undercut groove 4 in the fixing strip 8. The sealing strip may be of extruded rubber or plastics such as neoprene or polythene, or plastics or rubber impregnated fibre or fabric or spring steel or phosphor bronze and have a smooth or reeded or fluted surface as shown. Fig. 1 shows the excluder strip in a top hung window, the sash swing- ing in the direction of the arrow "A", Fig. 2 shows the application to a conventional door and jamb. Other applications illustrated are to the case where the door is channel grooved (Figs. 3 and 9) staggered sliding doors (Fig. 4) double sliding doors in same plane (Figs. 5, 6, 8), double hung vertically sliding windows (Fig. 7), fitted to the edge of a door or sash (Fig. 10) and in association with a pneumatic tube (Fig. 19) inflatable automatically on operation of the door by a system illustrated (in Figs. 20-24).
Patent GB-1288548-A (GB)
IPC: G03B7/083
Filed: 1970-02-06
Abstract: 1288548 Automatic exposure control ASANI KOGAKU KOGYO K K 6 Feb 1970 [24 Feb 1969] 5842/70 Heading G2A An automatic exposure time control arrangement for a camera includes two light responsive elements 1, 4, the difference between the light intensities measured by the elements being stored, e.g. by a capacitor 7, the stored signal being subsequently used to modify the control of exposure time based on the light intensity measured by one only of the elements. Element 1 is placed in the path of light which has passed through the objective, e.g. in the viewfinder, and element 4 is placed to receive light entering through a window provided in the front portion of the camera. Changeover switch 8 initially connects terminals X 1 , Y 1  to the capacitor 7, and switch 5 connects element 4 to contact a. Upon exposure, changeover switch 8 connects capacitor 7 to terminals X 2 , Y 2  and switch 5 connects element 4 to contact b. Element 4 and capacitor 9 form an integrating network so that the voltage on the base of transistor 10 increases according to the light incident on element 4. The trigger voltage of transistor 10 is determined by the value of variable resistor 12 which is adjusted according to the film speed or set diaphragm value, and also by the voltage across capacitor 7 which is applied to the base of a transistor 11. At the trigger voltage, transistor 10 is switched on to de-energize an electromagnet 16 which terminates the exposure. In one modification Fig.2 (not shown), resistor 12 is fixed, and a diaphragm located in front of element 4 adjustably coupled to a variable resistance in place of pre-set resistance 2 allows for film speed and set diaphragm value. In further modifications transistor 11 is connected between element 4 and capacitor 9 Fig.3 (not shown); transistor 11 energizes a motor (19) coupled to a diaphragm (18) located in front of element 4, Fig.4 (not shown); diaphragms (18), (20) are located in front of elements 4, 1, respectively and are coupled to variable resistances (6<SP>1</SP>), (2<SP>1</SP>) provided in place of pre-set resistances 6, 2, Fig. 5 (not shown); and diaphragm (20) is further coupled to variable resistance 12, Fig.6 (not shown).
Patent GB-1288640-A (GB)
IPC: A01N43/40
Filed: 1969-12-17
Abstract: 1288640 Mixed biocide compositions OLIN CORP 17 Dec 1969 [23 Dec 1968] 61463/69 Heading A5E A synergistic biocidal composition comprises an alkali metal chromate and an alkali metal salt of a 2-mercaptopyridine-1-oxide of formula or its tautomeric form, wherein R is H, C 1 -C 5  alkyl, C 1 -C 5  alkoxy or halogen and M is alkali metal. The compositions find application in combating fungal and bacterial growth in starch pastes, wall cements, drilling muds, floor polishes, paper making and in water cooling towers.
Patent GB-1289896-A (GB)
IPC: A61M16/00
Filed: 1970-06-09
Abstract: 1289896 Respirators UNITED AIRCRAFT CORP 9 June 1970 [17 June 1969 (2)] 27768/ 70 Heading A5T [Also in Divisions G3 and F2] A fluidically controlled respirator comprises a normally closed valve 12 between a source of gas 10 and a mouthpiece 22, a normally open valve 26 connecting the mouthpiece and the atmosphere, said valves being actuated intermittently and synchronously from first outlet 64 of a first fluid amplifier 30 via lines 68, 69, the control ports 60 and 74 of said first fluid amplifier being connected respectively to outputs 54 and 72 of second and third fluid amplifiers 32, 34, the control ports 46, 48 of said second and third amplifiers being connected by line 44 to mouthpiece 22 so as to be responsive to the breathing of a patient. The respirator preferably includes an ejector 24 between valves 12 and 26, a nebulizer 27 upstream of valve 26 and a flow adjusting means 16 upstream of ejector 24. An adjustable restrictor 43 may be used to regulate the switching pressure level of fluid amplifier 30 which is preferably of the flip-flop type, the second and third amplifiers being of a type wherein a power stream is directed to a preferred output. A valve comprising a balloon 50 which can seat against an orifice 52 is interposed between mouthpiece 22 and third fluid amplifier 34. The respirator may further comprise means for timing the delay between exhalation and inhalation, which means may consist of fluid amplifiers 33, 137, back pressure switch 35 and a timing mechanism 82. A line connects second output 62 of amplifier 30 to control port 78 of amplifier 33 the output 79 of which is connected by line 80 to a control port of amplifier 137, output 90 of which is taken by line 92 to timing mechanism 82. Air passes preferentially into a timing element 49 rather than restrictor 100 until such a pressure is built up in said timing element that air will pass via restrictor 100 to a timing element 51 causing a diaphragm 110 to close an orifice 112 which prevents fluid flow along line 118, thereby causing fluid flow in the back pressure switch 35 to be diverted from an output 116 to another output 124. Output 124 of back pressure switch is connected to a control port 127 of fluid amplifier 30 to switch the output thereof from output 62 to output 64 thereby causing the respiration cycle to be repeated at intervals determined by the time taken for a signal to pass from amplifier 137 to back pressure switch 35.
Patent GB-1290474-A (GB)
IPC: B60P1/14
Filed: 1970-01-26
Abstract: 1290474 Vehicles with load-lifting frames; straddle carriers HAGGLUND & SONER AB 26 Jan 1970 [29 Jan 1969] 3718/70 Headings B8E B8H and B8Q A vehicle with a chassis comprising side members 10, 12, Fig. 2, and a cross-member 15, Fig. 1, from which a U-shaped lifting frame 25, 26, 34 is supported is characterized in that the cross-member 34 is at substantially the same height as the member 15. The lifting frame is raised and lowered by hydraulic rams 30, 31, 35, 36 and can be tilted about pivots 29 by the rams 35, 36. Bins or containers of a length greater than that of the vehicle may be transported.
Patent GB-1290736-A (GB)
IPC: G06K1/20
Filed: 1970-04-10
Abstract: 1290736 Digitally controlling printing and punching machine TOKYO SHIBAURA ELECTRIC CO Ltd 10 April 1970 [14 April 1969(2)] 17162/70 Heading G4H Apparatus for punching and printing data on cards comprises a punched tape reader 12, Fig. 6, a sprocket wheel 17, Fig. 4, for stepping the cards 15, in the form of a continuous web through the machine, a coded disc 36 providing signals indicating which of the characters 30 on drum 26 is in the printing position, a print hammer 34, punches 25 and means for controlling operation of the tape reader, the printing and punching means and the card feed so that printing and punching take place when the signals from coded disc 36 agree with the input data. The card 15 is a tag for attachment to goods to be sold. The cards are formed in a web separated by perforation lines . A hole 19 is provided for the string. The same data is printed twice in two lines, and the card is divided between the lines by perforations. The same data is also punched in 5 tracks. Sprocket holes 16 are engaged by the teeth of wheel 17 which is stepped by a magnet 18. Data sensed from the input tape is entered into data buffer 40 under the control of address counter 48, each column of the buffer being selected in turn and serving to store 5 bits in parallel. The number of tags to be made is also read from the tape and applied via control circuit 39 to counter 41. The character codes are read out of buffer 40 in turn and each is compared at 43 with the signals from the coded disc 36 briefly stored in a register 42. Upon agreement, circuit 43 gives a pulse to, gate 44 the output of which allows the data in the register 42 to be applied to the punch rod drivers 24. The output of gate 44 also passes via amplifier 45 to hammer driver 35. The card is then advanced to the next column and the process is repeated for all the columns to be printed and punched. When this is done the card web is advanced until the next hole 19 is sensed e.g. photoelectrically and the next card is printed and punched with the same data. As each card is completed counter 41 is reduced by one until, when it holds a zero value, detector 47 sends a signal to stop the process. Unnecessary zeros to the left of the highest significant figure are suppressed by circuit 49 which receives signals from address counter 48 indicating when the highest significant digits are being read out of buffer 40 and also the digit signals from the buffer 40. Gating circuit 49 detects when these digits are zero and a signal is applied to disable gate 44. At the end of the "amount" columns a signal from address counter 48 passes to full-stop code generator 50 to enter the code representing a full-stop into data buffer. This is then printed and punched.
Patent GB-1294945-A (GB)
IPC: E04C5/12
Filed: 1970-10-06
Abstract: 1294945 Prestressed concrete construction CONENCO INTERNATIONAL Ltd 6 Oct 1970 [6 Oct 1969] 47442/70 Headings E1W and EIS An end anchorage 11 for a post-tensioned concrete member is located relative to the shuttering 26 and to a prestressing cable 10 having a plastics jacket 14 by means of a tubular bolt 13. Bolt 13 has two portions of different external diameter separated by a threaded portion 36 which engages a threaded portion inside the anchorage 11 and allows the anchorage to be pulled towards the shuttering, compressing a resilient grommet 12 therebetween. The reduced portion 35 of the bolt 13 fits between the cable 10 and the jacket, and concrete or grout is thereby prevented from entering either the jacket or the anchorage. The cable comprises seven strands twisted together, and the bolt 13 is metal.
Patent GB-1295773-A (GB)
IPC: H03H11/12
Filed: 1970-03-23
Abstract: 1295773 Transistor background level removing circuits NETHERLANDS POSTAL & TELECOMMUNICATION SERVICE DIRECTOR GENERAL OF 23 March 1970 [21 March 1969] 14001/70 Heading H3T In a circuit in which the background level of a signal is reduced by applying the signal to one terminal of a differential amplifier V and through a rectifier D and an integrating circuit R2, C able to follow the background, to the other terminal, the background level is further reduced by a negative feedback path R3 from the output of the rectifier to the input of a preamplifier V1. It is explained that the feedback is effective for slow variations but the capacitor voltage does not follow rapid positive excursions and the amplifier V1 accordingly operates without effective feedback and thus with much higher gain. A suitable differential amplifier is described with reference to Fig. 5 (not shown).
Patent GB-1297247-A (GB)
IPC: F16L3/00
Filed: 1970-02-24
Abstract: 1297247 Pipe brackets C VAN DER LELY NV 24 Feb 1970 [25 Feb 1969] 8922/70 Heading A4B [Also in Division F2] A pipe support supports a pipe 2 comprising an elbow portion 24 so as to permit upward and downward movement of the pipe against the action of resilient means, within limits. The pipe support as shown comprises a framework composed of members 30 to 40, the member 40 being a cuff supporting the elbow. The member 40 along with member 34 can be elevated within limits by inserting a pin 38 in one of the apertures 39. 35 is a compression spring which may be adjusted by inserting a pin 36A in any one of the apertures 37. The pipe 2 as shown reaches into a pit 3 containing liquid manure which requires to be drawn out. In a second embodiment, Fig.1 (not shown) the support comprises a pantagraph linkwork controlled by an adjustable tension spring (19) and a support member (22) welded to the elbow portion 24 which can be connected to a vacuum tank (26) through a coupling device (27).
Patent GB-1297537-A (GB)
IPC: B05C1/00
Filed: 1970-06-05
Abstract: 1297537 Coating apparatus LOCKWOOD TECHNICAL Inc 5 June 1970 50898/71 Divided out of 1297536 Heading B2L A liquid applicator comprises an applicator wheel 110 a chamber 132 for liquid through which the application surface of the applicator wheel passes during rotation, a doctor device 141 at the exit of the chamber and a valve cavity 154a at least partially recessed in the wheel, open to a supply reservoir 120 at one range of the wheels rotation and over to the chamber at another range, the two ranges being non-overlapping. The valve cavity 154a may extend through the wheel as shown or may be a recess in the wheel. Coating medium passes to the chamber 132 only when the valve cavity 154b communicates therewith through a channel 136. In a modification (Fig. 5) the valve cavity 180 in the wheel 160 communicates with an axial bore 174 and a part 175 to the supply 176. On rotation of the wheel the cavity 180 communicates with a cavity 169 adjacent the chamber 170.
Patent GB-1297894-A (GB)
IPC: C25C3/20
Filed: 1971-04-29
Abstract: 1297894 Producing aluminium by fusion electrolysis SWISS ALUMINIUM Ltd 29 April 1971 [1 May 1970] 12201/71 Heading C7B In a process for recovering Al from an alumina-containing fluoride melt in an electrolytic cell, each anode is replaced in turn by a fresh anode set in position at a height initially determined as the height at which it attains its normal current intensity in about one day.
Patent GB-1302305-A (GB)
IPC: B31B50/25
Filed: 1970-12-09
Abstract: 1302305 Cutting ALF COOKE Ltd & G HADDOCK 10 June 1971 [9 Dec 1970] 58350/70 Heading B4B [Also in Division B6] In a method of, and apparatus for forming hinges in carton board, two spaced, parallel creasing rules having rounded edges are used to form each hinge. The rules 40 may be clamped in a forme 18 between knives 34, 36, 38 so that when a board is placed on the forme which is then reciprocated underneath a smooth arcuate platen 30, the board is cut into smaller sheets and the hinges are formed simultaneously. The platen may be planar and reciprocate up and down in synchronism with reciprocation of the forme. Rubber blocks 48 may be used to push the cut sheets from the knives and rules.
Patent GB-1307200-A (GB)
Title: Quilted material and method of making the same
IPC: B32B7/09
Filed: 1971-04-19
Abstract: 1307200 Quilted material SEIDNERS Ltd 19 April 1971 27033/72 Divided out of 1306359 Heading B5N A quilted material is made by securing a cover material 5 to a shrinkable plastics film 6 along lines 7 defining a quilt like pattern and processing the assembly, e.g. by heat, to cause shrinkage of the film 6 to produce raised portions 8 of the cover material 5 in the areas defined by the lines 7. The film and the cover material may be united by stitching or welding. The exposed film surface of the quilted material may be secured to a rigid or semi-rigid support.
Patent GB-1308860-A (GB)
Title: Links or connectors for ribbons tapes and the like used for personal  wear
IPC: A41F1/00
Filed: 1971-11-30
Abstract: 1308860 Buckle-like slides FUTTERS (LONDON) Ltd 30 Nov 1971 55598/71 Heading E2A A connector for ribbons or the like comprises a plastics plate with an elongated slot 2, arcuate end portions and side portions substantially greater in width than the end portions. Opposite sides of the slot may have teeth or a lug. The sides 5 may be concave or pointed.
Patent GB-1314338-A (GB)
Title: Flame ionisation detectors
IPC: G01N27/62
Filed: 1969-08-27
Abstract: 1314338 lonization detectors PYE Ltd 27 July 1970 [27 Aug 1969] 42587/69 Heading H1D In an electrode assembly for a flame ionization detector comprising a jet electrode 14, a collector electrode 11 mounted in coaxial relationship with said jet electrode so that the collector electrode surrounds the flame, and an annular duct 15 for the supply of air to the reaction zone of the flame, said annular duct 15 s arrange d to surround at least the tip of said jet electrode, and the walls of said duct are so profiled as to promote a substantially laminar flow of air to the flame. In the form shown the duct 15 is formed between a flared portion 12 of the collector electrode 11 and a conical tip portion 13 of the jet electrode 14, the walls of the duct being parallel. Alternatively, the angle of flame of the portion 12 may be less than the apex angle of the conical portion 13, thus providing a diverging duct, or the walls may be curved to provide a Venturi duct. In further alternative arrangements (Figs. 4 and 5, not shown) the collector electrode is cylindrical throughout its length, and the duct is formed between the conical tip of the jet electrode and an additional annular disc or cylindrical member surrounding the jet electrode. The electrode assembly is mounted in a metal body (Fig. 1, not shown) provided with a duct for admitting air. A stream of inert carrier gas, e.g. argon or nitrogen, in which the effluent of a chromatographic column is entrained is mixed with hydrogen and fed to the jet electrode.
Patent GB-1315377-A (GB)
Title: Solid fire-extinguishing compositions
IPC: A62D1/00
Filed: 1970-06-25
Abstract: 1315377 Solid fire fighting compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 10 May 1971 [25 June 1970] 30910/70 Heading ASA [Also in Division C2]  Fire-extinguishing compositions comprising compounds of the formula MC 2 N 2 A 3 O 3  where M is an alkali-metal atom, are produced by reacting urea with a hydroxide or carbonic acid salt of an alkali metal at 150 to 200C in contact with an atmosphere containing at least 5% by volume of water. The reaction may be conducted in three consecutive stages in which the concentration of the water vapour is different for each stage.
Patent GB-1322162-A (GB)
Title: Protective cover for filing folders
IPC: B42F13/00
Filed: 1969-06-29
Abstract: 1322162 Filing folders; loose covers F X MACKAY 29 Sept 1970 [29 June 1969] 4932/69 Headings B6A and B6E A protective cover for a filing folder 4 having a pair of covers 14, 16 articulated to each other by a spine 15 and whose free marginal edges 5, 6 opposite the spine 15 are spaced from each other, is composed of a plane, flexible plastics back sheet 1 opposite edges 9, 10 of which are associated with plastics pockets 2, 3, the pocket 2 being substantially wider than the pocket 3.
Patent GB-1323416-A (GB)
Title: Method of and apparatus for applying a treatment involving a chemic al solution to a long workpiece
IPC: C25D7/06
Filed: 1969-08-27
Abstract: 1323416 Continuous electro-plating TUBE PRODUCTS Ltd 14 July 1970 [27 Aug 1969] 42682/69 Heading C7B An elongated work-piece 10 e.g. a tube 11, is electro-plated by forming it over the greater part of its length into a helix, joining its ends together e.g. by a plug or welding, partly immersing it in a plating solution e.g. in container 16 with the helix axis parallel to the solution surface, and rotating it about the helix axis, e.g. using a pair of rollers 13, 15 one (13) of which extends through the helix and is driven, to cause one end of the helix to be unwound and rewound on the other end. The roller 13 is preferably conductive, forming the cathode, and clear of the solution surface; the roller 15 is preferably of rubber and biased to engage the work-piece. One of the rollers may be tapered. A comb may be included to space apart the turns of the helix.