baber/WOPTO huggingface dataset:
Patent GB-419705-A (GB)
Title: Improvements in or relating to electrically controlled screw-tapping machines
IPC: B23G1/16
Filed: 1934-03-23
Abstract: 419,705. Screw-tapping. HERRMANN, R., and HERRMANN, E., 22, H÷lderlinstrasse, Stuttgart, Germany. March 23, 1934, No. 9182. Convention date, May 8, 1933. [Class 83 (iii).] In a tapping-machine the spindle of which is driven by a reversible electric motor, a mechanically controlled reversing switch is kept in the " off " position when changing from backward to forward rotation and after being set to move into the forward position, by a locking bolt with a flattened end. The tap spindle 1 driven through toothed gearing from a reversible electric motor 13 is mounted in a sleeve 4, which is capable of limited vertical feed through rack and pinion gearing driven by the motor through a train including worm and worm wheel 20, 21 respectively; the worm wheel 21 drives through a yielding friction clutch 33, Fig. 2 (section along A, B, C, D, E of Fig. 1), and pick-off gears 25, 26 are included in the train. The feed pinion 28 carried by a sleeve 34 which has a drum 33 at one end and is loosely mounted on the shaft 27 is driven therefrom through tappets 35, 36, Fig. 5, and ring springs 30, 31 arranged within the drum, the feed drive is thus yielding, being taken through the spring 30 for downward feed and through spring 31 for the return movement. The casing 33 carries adjustable stops 64, 65, Fig. 6, on its periphery which contact with an abutment 17 on a ring piece 60 arranged between the casing and the machine frame, Fig. 2 ; the ring piece is capable of limited rotary movement determined by a notch 62 and stop 63 and has a projection at its lower end which is adapted to engage a spring-pressed plunger 53 carried by a block 55 fixed to the end of a switch shaft 39. A hand-operated locking bolt 69 normally keeps the contact arms 41, 42 of the switch in the " off " position by a flattened end 70 on the bolt contacting a cut-away portion 71 of the block 55. The switch gear is in the position shown in Fig. 5 at the commencement of a tapping operation and on release of the locking projection 70 the plunger 53 moves the switch shaft 39 in a clockwise direction, thus engaging the forward contacts, Fig. 9 ; the feed motion operating through the yielding springs is arranged to be slightly greater than the screw pitch so that spring 30 is increasingly compressed during downward movement. The feed continues until the stop 65, Fig. 6, strikes the abutment 67 thus forcing the ring-piece 60 over the plunger 53 and finally allowing the latter to snap around to the left, thus reversing the motor and returning the spindle. The stop 64 finally moves the ring-piece in the opposite direction and the plunger 53 moves the switch to the " off " position where it is again automatically engaged by the locking bolt 69 thus requiring hand release of the bolt before another feed cycle can operate. Excessive resistance to cutting of the tap results in the drum 33 remaining stationary, but a further stop 68 fixed to the shaft 27 then operates to engage the projection 67 and thus reverse the motor.
Patent GB-124641-A (GB)
Title: Improvements in and relating to Boot Protectors.
Inventor: HELLIWELL JOSEPH
IPC: A43C13/02
Filed: 1918-06-04
Abstract: 124,641. Helliwell, J., and Smith, I. June 4, 1918. Heel and sole irons.- A protector for the toe or heel of a boot comprises a plate 1, Fig. 2, with upstanding rim 2 and strengthening bars 3 at intervals to form the tread, the ends of the rim being inturned as shown at 2<A>. The protector is secured by nails &c. driven through a filling-in piece 4, Fig. 5, of leather, &c.
Patent GB-1133633-A (GB)
Title: Clock signal distributing network for data processing apparatus
IPC: G06F1/10
Filed: 1966-03-03
Abstract: 1,133,633. Pulse circuits. INTERNATIONAL BUSINESS MACHINES CORP. 3 March, 1966 [5 April, 1965], No. 9261/66. Heading H3P. A clock signal distributing network for data processing apparatus includes a plurality of circuits connected in cascade, each circuit comprising a first inverter 3, a delay line 4 with an inverting terminator 11 having different response times at turn-on and turn-off and a second inverter 10. Inverter 10 ensures that the inverting terminators 11, 12 of successive circuits receive pulses of opposite polarity, thus preventing the cumulative reduction in pulse width caused by their different response times at turn-on and turn-off.
Patent GB-351464-A (GB)
Title: Means for and method of thermionic detection
IPC: H03D1/16
Filed: 1930-03-24
Abstract: 351,464. Valve detecting circuits. BALLANTINE, S., 267, Boulevard West, Mountain Lakes, New Jersey, U.S.A. March 24, 1930, No. 9349. Convention date, April 10, 1929. [Class 40 (v).] With a thermionic detector giving a square law response over an extended range of carrier voltages, and in which linear response is secured by impressing on the detector carrier voltages falling outside the range of square-law response but short of overloading, the received signal is amplified before being impressed on the detector, and the amplifiertion is automatically adjusted to bring the voltage impressed on the detector within the above-specified range of linear response. Fig. 2 shows the relation (Curve F) between the output voltage Ea and radio-frequency input voltage Eo to an anode bend detector, the straight portion of the curve corresponding to square-law rectification, while at the point B the response is linear; curve D represents the distortion present with a modulation of 20 per cent. Fig. 3 shows a known anode bend detector circuit, in which the normal bias due to the battery Ec is varied by the potential drop across the resistance R due to changes in the carrier or input voltage. The arrangement thus functions as an automatic volume control by grid rectification, the condenser C being so large that its impedance is negligibly small for modulation frequencies and thus no signal detection takes place in the grid circuit. The corresponding curves for this arrangement are shown in Fig. 4. the curve F<1> having an extended portion cover which the response is linear with a decrease in distortion as in curve D<1>. Fig. 5 shows a known receiving circuit in which the signal input to the anode-bend detector T2 is applied through condenser C3 to an auxiliary leaky grid detector T4. The variations in potential drop across the anode resistance R2 are impressed as variable grid bias on the high-frequency amplifier T1, audio-frequency variations being byepassed by the condenser C5. Specifications 287,972, 291,083, 299,518, and 305,245, [all in Class 40 (v), Wireless signalling &c.], are referred to.
Patent GB-817861-A (GB)
Title: Separation of fission products from irradiated uranium
IPC: G21C19/48
Filed: 1954-03-30
Abstract: Fission products are separated from neutron-irradiated uranium by heating under vacuum at a temperature above 1130 DEG  C.  Heating may be carried out electrically in a beryllium oxide crucible.  At a temperature of 1250 DEG  C. and a pressure of 104 mm. of mercury, fission products, e.g. Sr90 and Cs137, distil off and are collected on a cooled disc or cylinder.  By heating the residue to at least 1400 DEG  C., plutonium distils and is collected separately. Alternatively, if the original uranium is heated quickly to the higher temperature, fission products and plutonium distil off together and may be separated subsequently.
Patent GB-582774-A (GB)
Title: Improvements in or relating to photographic shutters
IPC: G03B9/20
Filed: 1944-05-16
Abstract: 582,774. Photographic shutters and diaphragms. KODAK, Ltd. May 16, 1944, No. 9385. Convention date, June 3, 1943. [Class 98 (i)] The blades of a photographic shutter open and close the exposure aperture during the setting or tensioning of the shutter and a pivoted lever controlled by the setting member moves the diaphragm leaves so as to cap or cover the aperture during the setting action and is then released to allow the diaphragm leaves to return to a predetermined position under spring action. The diaphragm leaves 10 pivoted to the shutter casing at 11 have a pin-and-slot connection 12, 13 with a diaphragm ring 14. The latter has an arm 15 which is urged towards an adjustable stop pin 16 by a spring 17 which acts on a pivoted lever 18 connected by pin 20 and slot 21 with the diaphragm ring. The pin 16 is carried by an arm 22, the top end of which carries . protuberances which snap into notches on the cover-plate carrying the diaphragm scale. The setting lever 27 is carried by an arcuate slide 28 and a pin 30 thereon engages a slot in the master member. The slide also carries a pivoted latch 34 with a cam-shaped extension 36 which engages a pin 37 on the arm 18 so that when the setting lever is moved to set the shutter, the diaphragm blades are moved across the aperture and remain closed until the pin 37 reaches a notch 39 in the latch and moves to allow the spring 17 to swing the arm 18 in a counter-clockwise direction and return the diaphragm blades to the position determined by the stop 16. In the meantime, the shutter blades have been opened and closed in the setting operation. The shutter mechanism comprises a master member 32 (Fig. 6), carrying two driving pins 41, 42. An arm 43 on the blade ring 44 projects into the path of these pins. The shutter blades 51 are doubleended and symmetrical and carry pins 54 engaging slots 55 in the blade ring 44. The blades are pivoted on a second blade ring 45 which is connected to the ring 44 through rocker arms 46 having pin-and-slot connections with both rings. The pin 41 engages the arm 43 in the setting action and swings the shutter blades across the exposure aperture into the set position. The shutter release trigger 61 carries a latch element 60 engaging a cooperating latch element 59 on the master member and retains the shutter in its set position. It is depressed to release the shutter and the master member then runs down under the action of its spring 40 and the pin 42 strikes the arm 43 causing the blade rings to oscillate and open and close the shutter blades. In the return movement of the slide 28, the spring batch 34 rides idly over the pin 37.
Patent GB-1298864-A (GB)
Title: Improvements in or relating to straight bar knitting machines
Inventor: DORR WERNER
IPC: D04B11/06
Filed: 1970-02-26
Abstract: 1298864 Knitting-machines WIRKMASCHINENBAU KARL-MARX-STADT KOMBINAT FUR WIRKUND STRICKMASCHINENBAUERZEUGNISSE VEB 26 Feb 1970 9385/70 Heading D1C In a straight bar machine having adjustable boundary stops 2, 3 racked by a spindle 4, widening is effected by controlled displacement of the stops. The stops carry means 5, 6 for arresting the movement of the carrier 9, and are moved by the spindle 4 which comprises two sections of opposite hand. During a first course of knitting the carrier is initially arrested opposite needle 10, needle 11 being the last to make a stitch. After the needles have been pressed and moved into the knocking over position the carrier is displaced outwards by one needle division, and is situated opposite needle 12. Thus yarn passes behind needle 10 when the needles are raised. During sinking of the loops on the second course the stops are back-racked one division so that widening can also be effected at the other selvedge by further outward displacement of the carrier. Back-racking is not effected after the second selvedge widening, so that the carrier traverse is consistent with the widened knitting width. The widening ratchet device 7 is indexed by cam 19 via a follower 25 brought into the range of the cam by a racking bar 27, and a disengageable pawl 21. The back-racking ratchet device 8 is similarly indexed via follower 26 and racking bar 28. The racking bars are moved by arms following cams (29, 30 figures 5, 6 not shown) indexed by pawls (31, 32) selectively operable by solenoids (33, 34). A control circuit prevents back-racking on predetermined courses.
Patent GB-436712-A (GB)
Title: Improvements in or relating to indirectly heated cathode structures and electron discharge devices incorporating the same
IPC: H01J1/26
Filed: 1935-03-26
Abstract: An iron cobalt alloy for use as a screen in the construction of a thermionic cathode is composed of iron with additions of 10, 35, or 50 per cent of cobalt.  Sheets of this alloy are coated with or surrounded by sheets of copper, nickel or other metal to receive the electron emissive material.
Patent GB-399109-A (GB)
Title: Improvements in and connected with water or other liquid tanks
IPC: E03B11/00
Filed: 1933-03-29
Abstract: 399,109. Tanks; siphons. BOSCH, J., 338, Avenida del 14 de Abril, Barcelona, Spain. March 29, 1933, No. 9494. Convention date, Oct. 26, 1932. [Class 69 (i).] An arrangement for ensuring the discharge of accumulated sediment &c. from a tank, comprises a siphon L connected to the bottom of the tank and rising to the level of normal capacity before descending to a level S beneath the draw-off level D, whereby the rise of level in the tank initiates siphonic action which is broken by the fall of level below an air inlet or valvular orifice B. The siphon may be within or connected to the tank, and the bottom of the latter may be flat or shaped to promote the collection of sediment.
Patent GB-983257-A (GB)
Title: Improvements in or relating to corrector magnets
Inventor: STEINGROEVER ERICH
IPC: H01F1/113
Filed: 1962-03-13
Abstract: 983,257. Cathode-ray tubes; magnetic compositions. MAGNETFABRIK GEWERKSCHAFT WINDHORST. March 13, 1962, No. 9580/62. Headings H1D and H1H. A corrector magnet, e.g. for cathode - ray tubes, comprising an annular part 1 and projecting operating knobs 3, 4, the magnet being formed from homogeneous magnetic material, the annular part being magnetized while the operating knobs do not substantially affect the magnetic field due to the annular part. The magnet is preferably formed in one piece by an injection moulding process using a magnetic oxide, e.g. BaO.6Fe 2 O 3  and/or Alnico with a plastic binding agent, e.g. polyethylene. Magnetization of the annular part is performed by using a coil and shielding the operating knobs with sheet iron shells, or a good conducting material such as copper or aluminium, alternatively additional compensating coils may be wound round the knobs and connected in series with the main coil.
Patent GB-214628-A (GB)
IPC: C07F9/80
Filed: 1924-04-15
Abstract: Phosgene is caused to act upon 3-oxy-4-aminobenzene-1-arsinic acid; the product has a good effect upon spirochaetes and trypanosomes and may be administered both parenterally and per os.  In an example the acid, dissolved in sodium acetate solution, is treated with phosgene, and the product recrystallized from hot water.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to the treatment and phosgene of homologues and analogues of the 3-oxy-4-aminobenzene-1-arsinic acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1072744-A (GB)
Title: Improvements relating to storage racks
Inventor: SMITH ALFRED GEORGE
IPC: A47B47/02
Filed: 1965-03-08
Abstract: 1,072,744. Racks. DEXION Ltd. March 8, 1966 [March 8, 1965], No. 9702/65. Heading A4B. A rack comprises one or more hollow uprights 1 each having two lines of opposed slots (8) through which are passed flat cantilever bars (2) for supporting shelves (5). The uprights may be of channel, box or tube section and they are supported by inverted U-shaped brackets (15) which are bolted to the inside of the lower ends of the uprights and which are welded to a flat base bar (3) disposed on edge and provided with flat pads (4). Each cantilever bar (2) may have two upset regions (23) where it engages the two walls of the upright. The bars may be flat or channel sectioned. If a bar projects to the front only it may have a retaining bent tongue at its rear extremity. One lower corner of the rack may be provided with crossed diagonal bracing (19) including turnbuckles (20). The shelves (5) have flanges 9, 10 which are bolted to the cantilever bars. Gaps between shelves may be closed by filling pieces or the shelves may have shaped corners for fitting round the uprights.
Patent GB-380100-A (GB)
Title: Improvements in cutting tools and methods of making and joining tools and metallic bodies
IPC: B23K31/02
Filed: 1931-03-31
Abstract: A hard refractory alloy, soldered to a steel shank for forming a lathe tool &c. may comprise an alloy of tantalum, niobium or tungsten, carbon or boron, and iron, nickel, or cobalt.
Patent GB-304518-A (GB)
Title: Improved screw devices for presses for trousers and ties
IPC: A47G25/72
Filed: 1928-03-31
Abstract: 304,518. Richardson, J. March 31, 1928. Trouser and necktie presses.-In a construction of thumbscrew for trouser &c. presses, the thumbpiece is pivoted on its screw by a rivet, and is provided with a lug or lugs, between which and the screw, spring washers are arranged. As shown, an internally-threaded barrel 7 or the like is attached to the bottom board and the screw 1 has a thumb piece 3 straddling the screw. The piece 3 is attached to the top of the screw by means of a pin 5, which passes through the head 2 of the screw. Between the head 2 and the thumb-piece, spring washers are arranged, bearing at one side on a lug or lugs 4 integral with the thumb-piece.
Patent GB-892187-A (GB)
Title: Conveying device, for example a loader for bulk material or an excavator
IPC: E02F3/18
Filed: 1960-03-18
Abstract: 892,187. Loading machines. BETEILIGUNGS - UND PATENTVERWALTUNGSGESELLSCHAFT. March 18, 1960 [March 19, 1959], No. 9774/60. Class 78 (1). [Also in Group XXI] A loading device comprises a framework 3, which is pivotally mounted about a vertical axis 4 on a mobile supporting frame 2 and which supports a luffable conveyer boom 6 and bucket wheel 7, and a luffable conveyer boom 14, which is pivotally mounted about a vertical axis 15, means being provided to maintain the discharge end of the boom 14 in a substantially fixed position with respect to the frame 2 during rotation of the framework 3 about the axis 4.  The boom 14 is slewed about axis 15 by means of hydraulic rams 57, 58, the cylinders of which are connected by hoses 66-69 to the cylinders of hydraulic rams 53, 54 of a simulator mounted on the framework 3. The rams 53, 54 are pivotally connected at 55, 56 to a gear-wheel 45. which is rotated by means of a driven pinion 39 and pinions 43, 44 through an angle with respect to the framework 3 equal and opposite to the angle through which the framework 3 rotates with respect to a gearwheel 40 fixed on the supporting frame 2, the piston-rods 51, 52 being pivotally connected at 50 to the piston-rod 30 of a pivotallymounted ram 47, the outer end of the rod 30 being pivoted at 29 to the gear-wheel 45. The relationship between the diameters of the ram cylinders 53, 54 and 57, 58 is such that on rotation of the framework 3, the boom 14 will be turned by the same angle with respect to the framework 3 by which the rod 30 is turned with respect to the line joining points 29, 33, thereby causing the longitudinal axis of the boom always to pass over the fixed discharge point, Fig. 2 (not shown). The cylinder of ram 47 is connected by means of hoses 70, 71 to the cylinder of a ram 72 mounted on the boom 14, the piston-rod 74 being connected to a longitudinally displaceable conveyer 22 mounted on the boom 14 below a bell conveyer 13, the diameter of ram cylinder 72 being so selected that the displacement of the discharge conveyer 22 will be proportional to the displacement of the piston 46 of ram 47 in the simulator in the same ratio as the distance between axes 15, 4 to the radius 29, 33, thereby maintaining the discharge point of conveyer 22 at a substantially fixed position during rotation of the framework 3 about axis 4. The simulator may be disconnected by operation of clutches (not shown).
Patent GB-285681-A (GB)
Title: Improvements relating to spinning, twisting and like machines
IPC: D01H5/44
Filed: 1927-04-09
Abstract: 285,681. Smith, W. Prince-, and Waterhouse, D. April 9, 1927. Rollers and roller heads.-In spinning, twisting, and like machines each roller stand A is adjustably connected to a separate foot B secured to the usual continuous beam C, and a separate continuous rail E for supporting the intermediate partition stands is secured to the lower ends of the roller stands; the base of the middle carrier stand G is arched or raised to straddle the bases of the outer carrier stands H so as to allow them to be closely adjusted as shown, and the bases of all three carrier stands are extended rearwardly to provide a rigid bearing. The foot B is slotted horizontally and a lug A<1> of the stand A is slotted vertically, and the two are secured together by a bolt D engaging the slots, the weight of the stand being taken by a bolt A' adjustable in the stand and bearing on the rear upper surface of the foot and by a bolt B<2> adjustable in the foot and bearing on the forward lower surface of the stand.
Patent GB-459125-A (GB)
Title: Improvements in or relating to the manufacture of paper
IPC: D21F3/04
Filed: 1935-03-29
Abstract: 459,125. Sizing and filling paper pulp webs. MEAD CORPORATION, Chillicothe, Ohio, U.S.A.-(Assignees of Growdon, L. R.) March 29, 1935, No. 9881. Convention date, May 1, 1934. [Class 96] Additional paper-forming material to compensate for that lost during web formation is added to the wire side of a wet pulp web, and suction is applied to the other side to draw such material into the web, paper thus formed being free from suction-roll marks. The web 12 from a wire 10 and suction couch roll 13 passes to an auxiliary wire-cloth 16 through which is applied additional filler, size, &c., from a trough 19 by a roll 18. The web proceeds through a turning-press 23 as shown, and the suction is applied at 27, the web then passing through wet presses 32, 33, 35, 36 and dryers 37. In various modifications ; the web meets the felt of the turning press only at the nip of the press rolls; the filler &c. is applied either after the first wet-pressing, or to a wire-cloth separate from and travelling oppositely to the web and blown from the wire on to the web, or by a brush &c. to the upper roll of a suction press, or to the lower run of a wire-cloth supporting the web on its upper run.
Patent GB-555711-A (GB)
Title: Improvements in or relating to machines for heading and/or indenting cartridge cases
IPC: B21K21/04
Filed: 1942-07-17
Abstract: 555,711. Heading cartridge cases. GREENWOOD & BATLEY, Ltd., MACLAGAN J C. M., PILLING, W. B., and GOULD, H. July 17, 1942, No. 9936. [Class 83 (iv)] In a machine for heading or indenting cartridge cases, these are fed by hand to a shoot 31 from which they are removed one by one by a punch 5, operated by a lever 11 from a side rod 15 reciprocated by a cam 12, and transferred to the heading die, for action by the punch 3 on a' slide operated by crank 8 and connecting rod 9. During the heading a pivoted abutment block 7 is swung into place, to back up the punch, by an adjustable link 24 from a lever 23 on a side shaft 22 operated by a cam 19. The abutment block may be arranged to slide. The cam 12 may be shaped so that after heading a further advance of the punch takes place to start the ejection of the case from the die. The punch position is adjustable by a wedge 28 controlled by screws 29. In a modification the punch slide has a series of holes that register with pins carried by an oscillatable head so that the pins may be positioned out of register with the holes to form an abutment.