baber/WOPTO huggingface dataset:
Patent GB-1007825-A (GB)
Title: Logic circuits
IPC: H03K19/084
Filed: 1963-05-21
Abstract: 1,007,825. Transistor logic circuits. RADIO CORPORATION OF AMERICA. May 21, 1963 [June 11, 1962], No. 20223/63. Heading H3T. A logic circuit comprises a number of Positive OR Gates, each of which comprises an NPN transistor 20a, 20b &c., in common emitter connection, fed from a Positive AND Gate. Each AND gate comprises a number of diodes, e.g. 12a, 12b, 12c connected between two-level inputs, e.g. A, B, C, respectively, and a common point, e.g. 14a, comprising the base of the corresponding transistor. A positive bias is applied to the point 14a over a resistor 16 and the positive potential to which it may rise is limited by a further diode 22a connected to an appropriate positive potential. The emitters of the transistors 20a, 20b &c. are connected in parallel to a common load comprising resistor 30; the speed of operation may be increased by means of a series-connected inductor 32. The voltage across this load is applied over R.C. network 34, 36, 38 to the base of an amplifying transistor 42 in common emitter connection, the emitter circuit of which includes an impedance network comprising resistor 46 in series with inductor 48. Resistor 50 shunting the inductor 48 prevents " ringing." The base of a further transistor 64 is coupled to the emitter of transistor 42 and the collectors of both transistors feed into an output load which comprises transmission lines 80, 82. Each line terminates in a terminating resistor 84, 86 respectively, over which are fed the collector supplies for the transistors 42, 64; outputs are obtained from tapping points on both lines. The arrangement is such that the resistors 16 &c. may be made of relatively high value, so reducing the loading thrown on the inputs A, B, C &c. which may be taken from further transmission lines.
Patent GB-1498710-A (GB)
Title: Positive displacement pump systems
IPC: F04C14/26
Filed: 1975-05-13
Abstract: 1498710 Positive-displacement pump  combinations; reciprocating pumps: rotary pumps SUNDSTRAND CORP 13 May 1975 [17 May 1974] 20224/75 Headings F1A and F1F A pump 10 comprises a first set of pumping chambers between the vanes 16, a second set of pumping chambers at the bottom of the vane slots, and a circuit with valve means which ensure delivery to a conduit 5 1 either of the total flow from both sets of pumping chambers or of a flow equal to that of one of the sets. As shown, an inlet conduit 45, 46 leads to inlet ports 30, 31 for the pumping chambers beneath the vanes, an inlet conduit 40 leads to ports 20,22 for the inter-vane chambers, and outlet conduits 50,55 lead from the beneathvane and inter-vane chambers respectively. A valve 70 controls the delivery to conduit 51. In the position shown, all fluid from both sets of pumping chambers is fed to conduit 51. Movement of the valve spool leftwards causes land 74 to block communication between inlet conduits 45,40 via line 81, whilst land 74 no longer cuts of conduit 45 from connection 55c leading from outlet 55. Thus inlet 45 is fed directly from outlet 55 and thus the delivery to conduit 51 is diminished by the capacity of the undervane chambers. Movement of the valve spool rightwards blocks 55a but uncovers 55b and 55c. Thus all the flow from outlet 55 is returned to the inlets, some to inlet 45 via line 55c and the rest back to the inter-vane chambers via lines 55b and 81, it being noted that land 72 blocks off line 81 from line 45. Several other embodiments achieving the same effect are also described. Figs. 4 to 8 (not shown).
Patent GB-761984-A (GB)
Title: Improvements relating to conveyors
IPC: A01D17/06
Filed: 1953-07-21
Abstract: 761,984. Roller conveyers. PACKMAN, P. J. Oct. 20, 1954 [July 21, 1953], No. 20249/53. Class 78 (1). A conveyer for transporting and cleaning root crops comprises a series of parallel shafts 27 each of which carries a number of small flexible discs 30 of rubbery material having a diameter greater than the distance apart of adjacent shafts. The discs may have one or more peripheral notches 35, Fig. 5, may be formed with a number of shallow blunt teeth, or may be star-shaped. A rotating scrubber consisting of a number of resilient members 41, Fig. 3, mounted on a rotary shaft 40 may bo mounted above the conveyer.
Patent GB-186210-A (GB)
Title: Improved apparatus for obtaining practice in golf or other games or physical exercises
IPC: A63B69/36
Filed: 1921-07-28
Abstract: 186,210. Leven, C. July 28, 1921. Golf-practising appliances.-Relates to appliances for pratcising games or for physical exercises and comprises a club, bat, or the like having embodied and retainable therein means for indicating the power or skill of the movement imparted to the device. The invention is shown applied to a golf club. A guide d, Figs. 2 and 3, is embodied in the head of the club and arranged parallel to the striking face. During the swing of the club a weight e slides along the guide to a position in which the centrifugal force is balanced by a tension spring f, and is retained in this position by a ratchet gear. A pointer m on the weight indicates the power of the stroke on a scale n on the upper surface of the club-head. The weight is returned to its starting position bv pressing a button k connected to the pawl of the ratchet gear. In a modification, Fig. 9, an extension p of the head b of a golf club is slidable longitudinally in the hollow shaft a and controlled by a spring q. The power of the stroke is indicated on a scale r.
Patent GB-315705-A (GB)
Title: Process for driving piles in strata of small supporting power, and piles for use therein
IPC: E02D27/28
Filed: 1929-07-02
Abstract: 315,705. Sprenger, J. J. I. July 16, 1928, [Convention date]. Piles and piling. - Piles are driven in sandy and like unstable strata, the bearing - power of which is increased by compressing it; this is done either by driving in piles having enlarged points, or by shutting-off a part of the stratum between rows of piles, for example, between rows of piles arranged in a rectangle, and then driving further piles in this part. Fig. 1 shows a pile 2 with an enlarged point 1 of rectangular section, and Fig. 3 shows a wooden pile 3 to which a point 5 has been connected by bolts 4. The space above the enlarged point is filled with sand and water. In a modification, described only in the Specifi. cation as open to inspection under Sect. 91 (3) (a), the piles are driven in one line or plane; the third pile is driven between the first and second, and the fourth and fifth between the first and third and the second and third respectively, and so on.
Patent GB-1417166-A (GB)
Title: Mowing machine cutters
IPC: A01D34/53
Filed: 1972-05-02
Abstract: 1417166 Mowing machine cutter R WINSTANLEY [trading as MOWING MACHINE MAINTENANCE] 30 April 1973 [2 May 1972] 20289/72 Heading A1F A drum type mowing machine cutter has a skeletal cylindrical frame made up of end and intermediate discs 12, 14 respectively, mounted on a spindle 16. Circumferential slots 18 in the discs receive helical blades 10 which are welded in position, and are tapered towards their cutting edge. Back support elements 20 on discs 12, 14 having surfaces continuous with the side walls of slots 18 and conforming to the shape of the blades 10 give support to the blades substantially over their full depth. In a short cutter, the intermediate discs 14 may be omitted.
Patent GB-249397-A (GB)
Title: Improvements in or relating to thermionic valve holders
IPC: H01R33/76
Filed: 1925-08-13
Abstract: 249,397. Pressland, C. Aug. 13,1925. Vacuum tubes.-A thermionic valve-holder comprises parallel sockets each made by .bending a coiled spring so as to form a socket portion a<5> receiving a valve leg and a coiled support a<6> which extends at right angles to the socket portion and is secured at the end to an insulating support consisting either of a single recessed ring or of two rings p, q. The socket portions may be surrounded by rubber sleeves.
Patent GB-1309047-A (GB)
Title: Large power step-by-step system
Inventor: JACQUIN J
IPC: H02P5/48
Filed: 1971-04-19
Abstract: 1309047 Automatic Speed control SOC FRANCAISE DE MOTEURS INDUCTION 19 April 1971 [27 Jan 1970 17 June 1970 15 Sept 1970] 20375/71 Heading G3R A power motor 2 is caused to move at the same speed as a step by step pilot motor 1 by the output signal of an amplifier 6 which is fed with a voltage dependant upon the response of a sensing means 3 for sensing the difference between the angles of rotation of the coupled shafts for the two motors 1, 2. The sensing means may be a differential gear unit whose outer casing 4 only moves when the shafts of the two motors rotate at different speeds. The speed difference may be converted to a voltage signal by a potentiometer 5. Alternatively the sensing means may be a "synchro", a screw and nut arrangement acting on a strain gauge, a magnetically sensitive device in a permanent magnet circuit, a device responsive to pressure differences due to relative rotation of parts or to relative displacement of a photo-electric cell and a light sorce Figs. 5, 4, 6, 7 and 8 (not shown).
Patent GB-597109-A (GB)
Title: Improvements in and relating to self-propelled machines of the shovel type for handling, loading and dumping solid materials
IPC: E02F3/42
Filed: 1945-08-09
Abstract: 597,109. Load-handling machines. CHASESIDE ENGINEERING CO., Ltd., and JACKSON, G. H. Aug. 9, 1945, No. 20497. [Classes 78(ii) and 78(iii)] [Also in Group XXI] Relates to load-handling machines of the kind comprising a tractor on which a scoop or shovel carried between pivoted side arms is adapted to be lowered into a position adjacent the ground when the arms move to a downwardly inclined position and then forced by the tractor into the material being handled, such as sand or earth, and then raised by a power driven windlass and rope and pulley gearing to discharge its contents into a truck or the like. According to the invention the driving axle of the tractor is at the front, and the steering axle at the rear and a movable counterweight is provided between these axles which is controlled by the movement of the side arms such that when these arms move to a horizontal position away from the ground tho counterweight moves nearer to the steering axle and when the arms are lowered the counterweight moves towards the driving axle. In the embodiment shown, the tractor is provided with a scoop 6 pivotally mounted on a pair of arms 7 pivoted on the tractor frame at 8, the arms being raised to the unloading position shown in chain lines by a cable 12 anchored at 13 and passing round pulleys 14, 15 to a winch 5 driven from the tractor engine 2. Rotation of the winch drum 36 to raise the arms 7 automatically moves a counterweight 20 along track members 21 towards the steering axle 16. The counterweight runs on rollers 24 on flanges 22 of the members 21 and is connected to a rope 39 which is anchored at 40 and passes around pulleys 29 on the weight and a pulley 33 on the members 21 to a drum 34 which is connected to the winch drum 36 through spur wheels 37, 38. When the drum 36 is operated to lower the arms 7, the weight 20 is returned to the position shown in Fig. 1 by a rope 41 anchored to the weight at 42 and passing over two pulleys 31 on the members 21 and over a pulley 28 on the weight to an anchorage 43 on the drum 34. The counterweight may comprise two sliding weights arranged in guides one on each side of the tractor and connected to the arms 7 by ropes. Alternatively the counterweight may be in the form of a pendulum swung by the movements of the arms 7 through cam or other gearing.
Patent GB-627481-A (GB)
Title: Improvements in frequency selective thermionic valve circuits
IPC: G01R23/00
Filed: 1945-08-10
Abstract: 627,481. Valve amplifying circuits. WALTER, W. G., and BALDOCK, G. R. Aug. 10, 1945, No. 20529. [Class 40 (vi)] In a waveform analyzer, the frequency selective device comprises a valve with a phase-shift network feedback and a circuit for integrating to components of the desired frequency. A phase-shift network of capacitors 8 and resistors 9 feeds back energy from the anode to the grid circuit of valve 4, the setting of potentiometer 9c determining the selectivity of the circuit. A signal, applied over resistor 2, is selectively amplified, the narrow band of frequencies determined by the network, being passed on to the valve 14 to charge the integrating capacitor 16 and operate a meter. In a modification, Fig. 2 (not shown), the inner control grid and first anode of a heptode are used in place of valve 4, the outer control grid and anode replacing valve 14. Specifications 562,817 and 597,652 are referred to.
Patent GB-375580-A (GB)
Title: Lubricating means for the transmission mechanism of tractors
IPC: B62D11/00
Filed: 1931-07-20
Abstract: 375,580. Filters. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Cleveland Tractor Co. ; Cleveland, Ohio, U.S.A.) July 20, 1931, No. 20696. [Class 46.] In a lubricating system for the transmission mechanism of a track-laying tractor, oil is supplied through a pipe 49 to a strainer casing 41 detachably secured on the top of the transmission casing 19, whence it flows through openings 52, 53 to the gearing. The casing 41 houses a helical screen 59 mounted around a perforated core 55 which is provided with heads 56, 57 and is adapted to be inserted endwise into the casing and secured by a nut 58. The oil forced through the pipe 49 normally flows through a port 61 and thence through the screen 59 into the core 55 and thence through ports 63, 51 to the outlets 52, 53, but in the event of excessive pressure a spring-pressed valve 70 opens so as to put the pipe 49 into direct communication with the interior of the core.
Patent GB-1280577-A (GB)
Title: Improvements in and relating to a box construction and its method of manufacture
Inventor: GLASBAND NORMAN
IPC: B31B17/00
Filed: 1970-04-29
Abstract: 1280577 Portable containers CALLAGHAN PAPER BOX CO 29 April 1970 20703/70 Heading B8D [Also in Division B5] The lid or base of a box comprising a wall 12 and a disc 30 are joined by adhesive tape 22 and a bead of adhesive (36, Fig. 2) on the inside of the lid or base, the bead securing the top edge of the wall 12 to the inner surface of the disc. The lid or base may be of paper, cardboard or a plastic, in the latter case a solvent is used in place of the bead of adhesive. The adhesive can be a resin, a hot melt, a dextrin or an animal glue, and may be cured by exposure to heat. The lid or base is assembled on an arbor 14 which may be perforated to retain the components thereon and so that after assembly they can be removed by air pressure. Alternatively the arbor can be arranged to be contracted to release the lid or base. Instead of the disc being bevelled as shown at 34 it may have a radius on its periphery, a bead of adhesive (38, Fig. 3) being inserted between the radiused edge and the upstanding edge of the tape 22.
Patent GB-928846-A (GB)
Title: Improvements in readily applicable, shock proof end fitting for heavy duty flexible tubing
Inventor: FREDERICK LEONARD LONG
IPC: F16L33/01
Filed: 1960-06-13
Abstract: 928,846. Tube couplings. McKIERNANTERRY CORPORATION. June 13, 1960, No. 20727/60. Class 99(1). A flexible armoured plastic tubing 10 is secured in a rigid support 32 by an end fitting comprising a nut 12 which when screwed into the support causes a ferrule 21 to bite into the tubing and to compress the tubing against an insert 27 secured in the support. The support 32 comprises a screw-threaded socket 31 having a plain conical extension 34 provided with a stop shoulder 35. The ferrule 21 has an internal annular flange 19 in abutment with the end of the tubing 10 and an externally conical end portion which engages the conical socket 34 to hold the ferrule against rotation, the external outer end portion of the ferrule being tapered inwardly at 24 to an abrupt annular shoulder 25 providing a reduced weakened wall portion and the extreme outer end of the ferrule being rounded and having a bevelled entrance way. The insert 27 is formed with an annular head 29 which is disposed in an annular seat formed in the end of the ferrule 21 and is engaged with the support stop shoulder 35, the insert extending through the annular flange 19 into gripping and supporting engagement with the inner wall of the tubing 10. The nut 12 is provided with a funnel shaped opening 16 and with a smooth cylindrical socket having an internal rounded shoulder 14 in engagement with the rounded outer end of the ferrule 21 for applying thrust to force the ferrule against the head 29 of the insert 27 and the conical end portion of the ferrule into the conical socket 34 and to fracture the ferrule at the shoulder 25 and to wedge the separated tapered portion 24 of the ferrule into the inner portion from which it is separated and into biting engagement with the tubing 10.
Patent GB-422931-A (GB)
Title: Improvements relating to broadcasting and re-diffusion or re-broadcasting systems
IPC: H04H20/84
Filed: 1933-07-22
Abstract: 422,931. Wired wireless systems. ECKERSLEY, P. P., 82, Swan Court, Chelsea, and CARPENTER, R. E. H., 11, Garrick Street, Covent Garden, both in London. July 22, 1933, No. 20732. [Class 40 (v)] In a system in which broadcast programmes are distributed over an existing network by carrier waves applied to the network conductors, for example, the three phase conductors a<1>, a<2>, a<3>, and the neutral conductor a" of a power network, in parallel, the subscriber's receiving apparatus c is connected to the network at a point as near as possible to its entry into the house, and a stopping device g, p, is connected to the supply wiring k on the house side of the connecting point to prevent passage to the receiving apparatus of high-frequency signals picked up by the wiring k acting as an aerial.
Patent GB-1213430-A (GB)
Title: Roller position adjustment mechanism
IPC: D21G1/00
Filed: 1969-04-23
Abstract: 1,213,430. Skewed doctor rollers. F.M.C. CORP. 23 April, 1969 [25 June, 1968], No. 20823/69. Heading D1L. A web 10 is flooded on one or both sides with a nexcess of coating liquid from nozzles 12 and/or 14, and passed between a pair of skewed doctor rollers 20, 22, the upper roller 20 being horizontally adjustable at each end to vary the angle of skew by means of a screw 130 having threads of a different pitch at the head and lower ends of the shaft, these threads engaging respectively a member (106) rigidly attached to one of a pair of uprights 34, 36 and a member 102 connected by means of a link 98 to a bearing block 42 carrying one end of the roller 20. Screw 130 may be provided with an indicia-bearing drum (140) and the member (106) with a pointer (142) overlying the drum and provided with a scale and these may be calibrated to determine the angle of skew. The link 98 oomprises two pieces and is pivotally secured to the member 102 and bear ing block 42 to enable the latter to be raised by means of eccentrics 70 at one end of pivoted links 62 connected through a shaft 54 to bearing block 42, to facilitate threading of the web.
Patent GB-1499747-A (GB)
Title: Superconductive lead
IPC: H01L39/14
Filed: 1975-05-16
Abstract: 1499747 Superconductors COMPAGNIE GENERALE D'ELECTRICITE 16 May 1975 [29 May 1974] 20997/75 Heading H1A In making a superconductor lead a strip 4 of a normally conducting metal, e.g. copper, is fixed to a support 2, a superconducting filament 6 of A15 type is laid over it and a second normally conducting strip 8 laid over at least parts of both. A second similar composite is laid on the support and at the crossing points with the first composite on insulator 10 is interposed. In Fig. 2h a method of transposing the composites is shown and a method of transposing 3 composites is described. A cylindrical support having two transposed helical composites is also described. The various layers may be deposited by cathode sputtering through masks, with either the masks moving or the support being rotated as it passes them.
Patent GB-1007973-A (GB)
Title: Process for obtaining hydroxycobalamin from natural materials
Inventor: ROLOVICH IVAN
IPC: B01J41/00
Filed: 1961-06-12
Abstract: Cobalamin is extracted in aqueous solution in the form of compounds having dissociable anions, and such anions are replaced by OH-ions by contact with ion exchange resins, hydroxycobalamin subsequently being precipitated by addition of acetone to the solution. The dissociable anions may be chloride, bromide, sulphate or nitrate ions; cyanocobalamin is excluded.  An example is given.  Specification 1,007,972 is referred to.
Patent GB-1178992-A (GB)
Title: Improvements in or relating to Automatic Slack-adjusting devices in combination with an actuating piston of fluid braking systems
IPC: F16D65/54
Filed: 1967-05-08
Abstract: 1,178,992. Automatic slack adjusters for brakes; brake cylinders. ALFRED TEVES G.m.b.H. 8 May, 1967 [28 July, 1966], No. 21263/67. Headings F2E and F2F. An actuating cylinder 1 for pressure medium operated brakes, more particularly for motor vehicles, contains a slack adjuster comprising a split resilient slack adjusting ring 6 disposed between a screwthreaded slack adjusting member 4 and an actuating piston 2 slidable on actuation of the brakes relative to the slack adjusting member 4. In the brake off position the piston 2 is connected frictionally to the slack adjusting member 4. The inner end of the actuating piston 2 is provided with means for entraining the slack adjusting ring 6 in the direction of actuation. In the construction shown the piston 2 and slack adjusting ring 6 are provided with complementary frusto-conical surfaces, the adjusting ring 6 having a screwthreaded outer periphery for co-operation with the slack adjusting member. The piston 2 is provided with a groove 11, the outer end wall 12 of which defines the limit of normal travel of the brake actuating movement. The adjusting ring 6 is approximately triangular in outer shape (Fig. 3, not shown). In a further embodiment (Fig. 2, not shown) the screwthreaded slack adjusting member is in the form of a pin permanently connected to one piston and projecting into a recess in the other piston. The slack adjusting ring has an internal screwthread to co-operate with the slack adjusting member and an external frusto-oonical surface for co-operation with a complementary surface of the other piston.
Patent GB-188622-A (GB)
Title: Improvements in adjustable web feeding apparatus
IPC: D06B3/10
Filed: 1921-05-10
Abstract: 188,622. Marks, E. C. R., (Benjamin Co. Inc., E. V.). May 10, 1921. Feeding webs.-In apparatus for feeding a web of cloth or other material to a machine, particularly the cutting-machine described in Specification 185,794, the web is fed from a roll into one limb of a V-shaped trough from the other limb of which it is withdrawn at a slightly lower speed, means being provided to stop the feed into the trough when the accumulation of web therein becomes excessive. As shown, the trough comprises two U-shaped walls 40, 41 secured to a framework consisting of cross bars 23, 24, 25. and columns 20, 21. Guide rollers 32, 35. 38 are mounted on the cross bars and a pair of feed rollers 50, 66 are mounted in the columns 20. The feed-rollers are adjustably pressed together by screws 47 and the lower roller 66 is driven by a chain 77 passing round a sprocket wheel 67 and round a slightly larger sprocket wheel 61 loose upon but adapted to be clutched to a shaft 59 driven by a chain 64 from the cutting machine. The speed of the shaft 59 is such that the web gradually accumulates in the trough, but when this accumulation becomes excessive, the operator opens the clutch on the shaft 59 to stop the drive of the feed rolls 50, 66.