baber/WOPTO huggingface dataset:
Patent GB-1419340-A (GB)
Title: Temperature or other variable compensating system
IPC: G01D3/036
Filed: 1973-09-27
Abstract: 1419340 Measuring temperature electrically YAMATAKE-HONEYWELL CO Ltd 27 Sept 1973 [9 Oct 1972] 45280/73 Heading G1N [Also in Division H3] A temperature compensating system for apparatus which produces a pulse train representation of a parameter (e.g. fluid-flow) comprises a temperature sensitive resistive element, a resistance to voltage converter and an analogue to digital converter, the output of which is used to modify the pulse train. The resistance to voltage converter has a concave or convex characteristic to compensate for a convex or concave respectively variation of resistance with temperature. The temperature is sensed by resistor P t  in resistance to voltage converter #R/v, the output of which is a voltage E i . This voltage is converted to a digital value by the dual ramp converter A/D and the digital valve E r  provides a division factor for divider RM in which the flow signal Fin applied at input 1 is modified. Resistance to voltage converter The converter shown has a convex characteristic. Transistors TR1 and TR2 for current circuits with the current controlled by the current through feedback resistor R f . The current through TR1 provides a voltage across temperature sensing resistor P t , which voltage is applied to one input of differential amplifier I.C. which the voltage at the other input is generated by the current from TR2 through resistors R4 and R v  which is varied to give zero amplifier output at one end of the temperature range. The I.C. amplifier output controls the base of TR3 and the current therethrough generates a voltage in Rg from which the output e o ' is taken and is also the control current through feedback resistor Rf. A concave characteristic can be obtained by connecting emitter resistors R 1  and R2 directly to the + B line and TR3 collector and Zener ZD to the + B line via the feedback resistor R f .
Patent GB-1062337-A (GB)
Title: Basic ethers and process for their manufacture
Filed: 1963-11-15
Abstract: The invention comprises piperazine derivatives of the general formula <FORM:1062337/C2/1> (wherein R represents a C1- 7 alkyl group) and acid addition salts thereof, and the preparation thereof by reacting 1-(3-methylphenyl)-piperazine or a metal salt thereof with a reactive ester of a 3-C1- 7 alkoxy-3-phenylpropanol, and, if desired, converting a resulting acid addition salt into the free compound or into another acid addition salt, or a resulting free compound into an acid addition salt, or, if desired, separating a resulting mixture of isomers into the single isomers.  Pharmaceutical preparations comprise a compound of the general formula above or a physiologically tolerable acid addition salt thereof and a pharmaceutically suitable carrier for enteral, parenteral or topical administration. They have antihypertensive and diuretic activity.
Patent GB-992434-A (GB)
Title: Shuttleless loom
IPC: D03D47/00
Filed: 1962-11-30
Abstract: 992, 434. Shuttleless looms; selvedges. UNDAUER DORNIER G.m.b.H. Nov. 30, 1962 [Dec. 30, 1961], No. 45322/62. Headings D1E and D1K. In a shuttleless loom in which weft inserters 7, 7<SP>1</SP> move in opposite directions and insert weft threads alternately from opposite sides of the loom off spools 1, 1<SP>1</SP>, each inserter, Fig. 2, has a transfer device 17 and a receiving device 18 so that the transfer of the weft from one inserter to the other takes place at a distance X short of the centre line of the fabric. This distance X is made greater than half the distance between the edge of the fabric and a cutting device 6 so that the free ends of the weft thread do not project beyond the opposite edge of the fabric and alternate free ends of the weft are embraced by a weft loop at the selvedges. Clamping devices 4 are provided for the threads 2 coming off the spools 1 and further clamping devices 5 are associated with the cutting devices 6 which are adjustable laterally to control the positions of the free weft ends in relation to the selvedge.
Patent GB-1534281-A (GB)
Title: External combustion engine and a method of operation thereof
IPC: F02D9/02
Filed: 1975-11-20
Abstract: 1534281 External combustion engines C HUBERS 20 Nov 1975 [20 Nov 1974] 45436/75 Heading F1S An external combustion engine comprises a supercharger 4 for drawing in air for combustion, a combustion gas supplying apparatus 9 with an inlet 10 for combustion air from each engine cylinder 1, only onebeing shown, an ignition device and an outlet 11 for the combustion gases to each engine cylinder 1, only one being shown, and a cooling device 8 for the air drawn in, which device is arranged between the supercharger 4 and the combustion gas supplying apparatus 9 and is controlled to give different degrees of cooling by a sensing element (not shown) which detects temperature or pressure changes in the combustion gases and is arranged to control the cooling device to maintain the pressure and temperature of the combustion gases substantially constant within the normal power range of the engine. The sensing element may comprise a piston acted on by the pressure in the combustion gas supplying apparatus 9, the element controlling a valve 23 which regulates 9 supply of cooling air. In a modification, not shown, an electrically controlled servomotor is employed to control the cooling. The fuel supply to the combustion gas supplying apparatus may be thermostatically controlled.
Patent GB-1147790-A (GB)
Title: Vacuum control
Inventor: NEWCOMB DOUGLAS HERMAN
IPC: G05D16/06
Filed: 1967-10-05
Abstract: 1,147,790. Vavles. D. H. NEWCOMB and C. B. NICHOLSON. 5 Oct., 1967 [6 April, 1967], No. 45555/67. Heading F2V. A vacuum regulator for the flat box of a paper-making machine has closure-members 30, 31 biased to an open position by vacuum applied above diaphragm 42. This vacuum derives from the main header and is varied by valve (14). The vacuum in line 29 leading to the flat box is applied beneath diaphragm 42 and acts to seat members 30, 31 when it reaches a level determined by the vacuum above the diaphragm. Should the vacuum in line 29 exceed the required value, diaphragm 42 unseats auxiliary closure members 69, 70 by means of rod 48 to admit atmospheric air to line 29. As shown, members 30, 31 are raised by diaphragm support 46a abutting stem 32, and are lowered under gravity or by a return spring. Member 30 may have a larger diameter than member 31 to assist return thereof.
Patent GB-1022120-A (GB)
Title: Profiloscope
Inventor: MITCHELL WILBUR L
IPC: G01S13/935
Filed: 1961-12-20
Abstract: 1,022,120. Pulse radar. NORTH AMERICAN AVIATION Inc. Dec. 20, 1961, No. 45706/61. Division H4D. A monopulse radar, mounted in a low-flying aircraft provides a ground proximity warning system, which produces an indication when the ground profile protrudes above a horizontal clearance plane. The clearance distance height is evaluated from the values, as measured by the radar of the angle B 1  between the radar beam bore-sight and a ground reflecting point and the range (R) of the point. The depression angle between the craft centre line and the beam bore-sight, and the aircraft angle of attack are employed in the calculation. To maintain the control signals at a fixed level irrespective of the obstacle range, size and radar cross section, instantaneous automatic gain control is effected inversely as the radar sum signal. Indication to the pilot may be either by numerical height indications or by a P.P.I. display with a three dimensional effect produced by an intensity control. If a threecolour CRT is used an azimuth indication on each side of the flight line may be provided. The aircraft height is derived from the expression H = R(N - A+B) where H = craft height N = angle between antenna bore-sight and craft centre line A = craft angle of attack. It is shown that the angle B is proportional to the difference signal only, by combining the monopulse feature that the ratio of the difference signal to the sum signal is proportional to the angle B, with the control of the gain of the sum and difference channels inversely as the sum signal amplitude. The antenna is scanned mechanically in azimuth by a search programmer. The range sweep generator, Figure 8 (not shown), provides a saw-tooth signal, the instantaneous value of which is multiplied by the signal corresponding to angle B, i.e. the elevation difference signal, for a given obstacle; The sweep generator is formed of a pentode with feed-back from anode to control grid through a cathode follower triode and discharge condenser. The pentode is triggered from the pulse repetition frequency generator coupled to the suppressor grid of the pentode through clipping diodes. The triangular wave range signal is supplied from the anode of the cathode follower to a multiplier.
Patent GB-1156418-A (GB)
Title: Improvements to Collating Machines
Inventor: HARTLEY FRANCIS GEORGE
IPC: B65H5/16
Filed: 1966-10-14
Abstract: 1,156,418. Collating machines; sheet-separating. GEORGE HARTLEY & SONS Ltd. 16 Oct., 1967 [14 Oct., 1966], No. 45990/66. Heading B8R. A collating machine is provided with a stepped support surface which comprises a plurality of adjacent platforms, sheets being selectively fed from a supply to the platforms, and a displacement means being provided for transferring sheets from any given platform to a succeeding platform. General arrangement, (Fig. 1A). A supply of sheet material is provided in each compartment 15, the material in each compartment being different; a feed means 14 reciprocating from front to rear of the machine in cyclic fashion takes one sheet from each compartment, and puts each sheet on a corresponding platform 11 of the collating device. Pusher rods 12a reciprocating longitudinally of the support surface of the collating device then transfer each sheet on a given platform to the next succeeding platform. Stacks with sheets in the desired sequence will thus be formed at the end of the collator. Feed device.-The feed means 14 comprises a plurality of feed heads (14a) (Figs. 2, 3, not shown), individually supported on a carriage 14b which reciprocates from front to rear of the machine under the action of rotating cam 14f, linkage 14e and rollers 14c in guides 14d at the sides of the machine. Each feed head (14a) has a suction nozzle 17b which follows a cyclic path under the control of lift shaft 17c which is rocked by linkage 17f, cam follower 17g and cam track 17h mounted above guides 14d. The suction nozzle operates in known fashion and air blasts 20b assist separation of the top sheets from each supply compartment.  Collating device.-The support surface of the collating device comprises a continuous stepped surface, the steps 11b defining each successive platform; the pusher rods 12a are similarly profiled with steps 12 so that they reciprocate between a position in which the surface of the rods coincide with that of the platforms, and a position in which they project in the longitudinal direction, thus transferring a sheet to the next platform. Drive is provided by linkage 13. Alternatively, each platform may be comprised of an intermittantly driven endless belt (not shown).
Patent GB-1167529-A (GB)
Title: Improvements in or relating to Fabrics, and Particularly to Bandages and Wound Dressings
IPC: A61F13/00
Filed: 1966-10-14
Abstract: 1,167,529. Knitted fabrics. LUDWIG POVEL & CO. 14 Oct., 1966 [15 Oct., 1965], No. 46177/66. Heading D1K. A knitted fabric, particularly for bandages and wound dressings, includes a substantially straight or slightly curved laid-in thread which is substantially inelastic and has a greater cross-sectional area than the other threads and is "overtwisted" or that when moistened it increases in length, causing the fabric to bow and assume a convex configuration. The fabric may be warp knitted and as shewn in Fig. 1a may comprise knitted threads L1, laid-in threads L2 and L4, and laid-in "overtwisted" threads L2. The threads L1 may be moved from course to course to the adjacent or alternate needles and the threads L2, L4 may be looped over two or more needles. The threads L3 may be arranged between the needles or moved from one side to the other of the needles.
Patent GB-1282907-A (GB)
Title: Warp-knitting machine
Inventor: REINERS WALTER
IPC: D04B23/12
Filed: 1969-09-19
Abstract: 1282907 Knitting machines W REINERS 19 Sept 1969 [27 Sept 1968] 46315/69 Addition to 1272785 Heading D1C In a modification of the warp machine of the Specification 1282151 in which selected weft threads to be incorporated in the fabric are presented to a guide moving in an elliptical path 518 the selected weft thread is cut to length once it has been carried across the machine. The weft presentation may be controlled by a pattern mechanism, or two wefts may be presented alternately. In the latter case the two threads f, f' are guided in bores 533, 534 of an oscillating disc 535. The presented weft f is engaged by jaws 512a, b or a suction device comprising one of the two guides. While the guide crosses the machine the disc rotates through 180‹ so that the weft end can be gripped and cut by jaws 537. The jaws and a suction device (538, Figs. 1, 3 not shown) at the opposite selvedge are both mounted on cam follower levers and carry the cut-to-length weft behind the needles.
Patent GB-1036539-A (GB)
Title: Improvements in foam laminates
IPC: D06N3/06
Filed: 1964-11-16
Abstract: A leather-like material which can be drycleaned comprises a layer of foam 1 surfaced on both sides with layers 2 and 3 of plastics incorporating a plasticizer which is inextractible by drycleaning fluids such as perchloroethylene, carbon tetrachloride or naptha. Inextractible plasticizers have high molecular weight e.g. 2,000-20,000 and specified alkyl chain lengths i.e. glycols and dicarboxylic acids selected from shorter carbon chain types e.g. glycol adipates, sebacates and the like. The foam may be vinyl resin e.g. P.V.C. or urethane or rubber foam.  The plastics layers 2 and 3 may be P.V.C., polyester, vinyl fluoride, or an acrylic resin. Cotton, fibreglass, or synthetic resin, fabric may be incorporated in the laminate.  The layers may be formed using plastisols, by extrusion or calendering.
Patent GB-1365458-A (GB)
Title: Trunnion seal for rotary mills and method
IPC: B02C17/18
Filed: 1972-10-11
Abstract: 1365458 Tube mills MARCONA CORP 11 Oct 1972 [26 Oct 1971] 46865/72 Heading B2A [Also in Division F2] A seal between the inner surface of a trunnion 14 and an inlet spout 20 for feeding material to be ground into a shell 12 containing steel balls, pebbles or rods comprises an inflatable member 44 carried by a rigid rim 42 which surrounds the spout in close-spaced sealing relationship, the inflatable member being expanded by gas into its mounted position in the trunnion. The inflatable member 44 may be a rubber tyre which is inflated through a valve 45 and the rigid rim 42 may be a wheel rim having a plastics sealing ring 64 bolted on to its mounting flange 66. The inlet spout 20 may be made of rubber hose and rubber liners 28, 68 and 70 may be provided.
Patent GB-1498890-A (GB)
Title: Hoists
IPC: F16H61/4157
Filed: 1975-11-14
Abstract: 1498890 Hydrostatic transmission control EATON CORP 14 Nov 1975 [25 Nov 1974] 47014/75 Heading F2W [Also in Division B8] The displacement of a pump 82 of a hydrostatic transmission 16 which drives a hoist is controlled by the difference between a desired speed signal (supplied by variable-speed electric, motor 76) and a signal representing the output speed of the motor 44 of the transmission. This difference is detected by differential gearing 84 which has one input shaft, 64, driven by the transmission output shaft 26, a second input shaft, 78, driven by the variable-speed motor 76 and an output shaft 80 connected to pump displacement adjusting means 112. A further speed difference sensing means comprises a screw-threaded shaft 42 carrying a gear 56 and driven by the transmission output shaft 26, the gear 56 meshing with a splined portion 58 of a shaft 60 driven by the variable electric motor 76. If the pump adjustment fails to adjust the transmission output speed to match that of motor 76, or if some part of the transmission fails, then the speed difference moves gear 56 axially to operate a switch 98 or 130 to apply brake shoes 34, 36 to a brake drum 32 on the output shaft 26. The transmission is shown operating a hoist comprising a hoist drum 12. The brake 14 is held disengaged by electricity and engaged when the upply is terminated. The brake 14 may engage when the prime mover 18, an electric motor, is switched off. A brake may be provided for shaft 60, to ensure that it is stationary when zero speed is required (Fig. 3, not shown). A variable potentiometer, varied by the hydrostatic transmission pressure acting on a spring-biased servo, may limit the maximum speed of the variable electric motor 76, to limit the speed of transmission output shaft 26, in dependance on the load 24 (Fig. 4, not shown). The pump 82 may be a swashplate pump.
Patent GB-1330192-A (GB)
Title: Equipment for growing graft tubes in place
IPC: A61F2/06
Filed: 1971-10-08
Abstract: 1330192 Surgical implants C H SPARKS 8 Oct 1971 [23 Dec 1970] 47062/71 Heading A5R An assembly 25 for implanting in a living body to grow a graft tube comprises a flexible mandrel 26 having a smooth outer surface, and inner and outer fabric tubes 27, 28 on the mandrel. The inner tube 27 is of coarser mesh fabric than the outer tube 28, and in both cases the fabric is impregnated with vulcanised silicone rubber. The mandrel 26 is of silicone rubber. There are spaces between the inner tube 27 and the mandrel 26, and between inner and outer tubes 27, 28, and connective tissues grow into these spaces when the graft tube is forming. When the graft tube is fully formed, the mandrel 26 is withdrawn and the graft tube is connected to other tubes as desired, e.g. in the anastomosis of an incompetent artery section. The assembly 25 is placed in the desired position inside the body by means of a tunnelling tube (11), Fig. 2 (not shown), which is open at both ends. Initially a core rod (13) with a rounded end (14) is placed inside the tube (11) with the rounded end (14) projecting from the distal opening, which is slightly inturned at (15). The tunnelling tube (11) is thus positioned inside the body, core rod (13) is removed from the tube (11) and replaced by the assembly 25. Tube (11) is then withdrawn, leaving assembly 25 in place.
Patent GB-1345558-A (GB)
Title: Devices for generating acoustic waves in a liquid medium by implosion
IPC: G01V1/135
Filed: 1971-10-11
Abstract: 1345558 Sound producing INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 11 Oct 1971 [15 Oct 1970] 47259/71 Heading G5J Apparatus for generating acoustic waves in a liquid medium comprises rigid circular members 2a, 2b which may be brought rapidly together by evacuating the space between them. Members 2a, 2b are connected to an annular metal flange 86 by annular neoprene members 6a, 6b. Bosses 89, 90 provide a fluid-tight seal and metal rings 88 help to spread the stress around bolts 85, 87.
Patent GB-1270183-A (GB)
Title: A reciprocating piston pump
IPC: F04B49/24
Filed: 1969-09-25
Abstract: 1,270,183. Reciprocating pumps. MARUYAMA SEISAKUSHO K.K. Sept.25, 1969 [Sept. 30, 1968], No.47351/69. Heading F1A. In a pump comprising a piston 8 reciprocating in a cylinder 6, the liquid pumped from the cylinder flows past an outlet valve 11 into a buffer cylinder 12 containing a piston 16 displaceable against the action of a spring 18 to even out the pressure of liquid leaving discharge port 13. The occurrence of a high pressure increases the pressure of liquid admitted through holes 17 to a chamber below the buffer piston, the piston 16 thereby being lifted. If the pressure is extremely high liquid is relieved from the buffer cylinder 12 through a spring loaded safety valve 24 leading to the inlet 1. Liquid is admitted to the pumping cylinder 6 from the inlet 1 when the piston 8 is performing a leftward stroke and a passage is established through the piston by the separation thereof from abutment with a valve element 3 fixed to the driven piston rod 2. A second cylinder 29 contains a second piston 30 displaceable against a spring 31 to absorb excessive pressures occurring in the pump cylinder 6.
Patent GB-1035728-A (GB)
Title: Condensing steam turbine plant comprising a controlled secondary circuit
IPC: F01K7/18
Filed: 1964-11-20
Abstract: 1,035,728. Steam generators. SIMMERING GRAZ-PAUKER-AKTIENGESELLSCHAFT FUR MASCHINEN-KESSEL-UND WAGGONBAU. Nov. 20,1964 [Dec. 3, 1963], No. 47373/64. Heading F4A. A condensing steam turbine plant in which the boiler heating surfaces 1 are followed, in the direction of flue gas flow, by heating surfaces 2 of a secondary circuit for producing and evaporating hot water. The secondary circuit, supplied with water from de-aerator 3 at constant temperature t 1 , comprises one valve 4 for controlling the flue gas final temperature t a  and one valve 5 for keeping the hot water temperature constant t 2  and further comprises an evaporating tank 8 which is connected via a superheater and non- return valve 9 to an intermediate stage of the turbine so that steam produced by the secondary circuit does work in the later stages of the turbine. The portion of the hot water in evaporator 8 which does not evaporate flows through a levelcontrolled valve 10 back to the de-aerator 3 and is used to heat the condensate. To ensure that the temperature of this hot water at temperature t s  is not greater than output temperature t 1  of the hot water, this hot water may first preheat the heating oil or combustion supporting air before entering the de-aerator 3.
Patent GB-1211464-A (GB)
Title: Cameras and photographic processes
Inventor: MONTEBELLO ROGER LANNES DE
IPC: G03C9/08
Filed: 1968-10-07
Abstract: 1,211,464. Multilens and pinhole cameras. RLM RESEARCH CORP. Oct. 7, 1968 [Oct.11, 1967], No.47460/68. Heading G2A. A camera comprises a base member 10 for supporting a photographic plate 12, a frame member 40 movable towards and away from the plate and carrying a sheet 42 having an image forming array of light passageways, the sheet being capable of being brought into contact with the plate, and a device 86 carried on the frame for exposing index marks adjacent an edge of the plate. The sheet may be lenticular having a multiplicity of lenslets with spherically convex front surfaces, each of the lenslets is preferably provided with a diaphragm aperture (52) Fig.6 (not shown), the apertures being in a sheet (50) prepared using an image intially produced in the camera. Spacers (54) may also be provided to space the sheet from the photographic plate. The lenslets are arranged in either a hexagonal or square array. Instead of lenslets, a flat screen (120) Fig.12 (not shown) is used having a hexagonal array of apertures each acting as a pinhole camera, the screen being formed by two ruled glass sheets with the rulings angularly arranged at 60 degrees, the opaque lines being 0À100 inch wide whilst the transparent lines are 0À010 inch wide. The base member 40 contains a passage 68 and apertures 70 for applying suction to the space between the sheet and the photographic plate. Tubes 86 have a translucent screen 90 and a bulb 92 produces a registration mark in the form of a circle on the plate. The camera is supported on threaded members 24 to a metal plate 16 mounted on a wall 18. The frame 40 is pivotally mounted at 45 to the base member 10. The camera is disposed within a housing containing lamps (112) Fig. 1 (not shown) and a target (100) consisting of a white circle or hexagon mounted upon a black background, the target being movable towards and away from the camera on rails (108), (110).