baber/WOPTO huggingface dataset:
Patent GB-521062-A (GB)
Title: Indexing device for machines for grinding gear-wheels
IPC: B23F23/08
Filed: 1938-11-12
Abstract: 521,062. Indexing-mechanism for gear &c., grinders. BIRKBECK, H. (Soc. Francais d'Engrenages a Denture Rectifiee). Nov. 12, 1938, No. 33000. [Class 60] An indexing mechanism for gear &c. grinding machines, is operated from the main driving shaft of the machine, which shaft drives the means for reciprocating the gear wheel relatively to, a grinding wheel mounted on a stationary axis. The wheel to be ground is mounted on a shaft 1 in a carriage 2 reciprocated on the frame 8, through a gear box 5 and mechanism 6, from a main shaft 6a, the gear box also driving a gear 12 so that it makes one complete revolution for each complete reciprocation of the carriage 2. The gear 12 has secured thereto a cam 14 carrying a stud 15 and having tracks 14a, 14b engaged by a roller 16 on an arm 17 secured to a shaft 18. The stud 15 co-operates with a lever 19 mounted in elastic fashion at 21 on a shaft 20, the lever 19 also being acted on by a spring 19a. The shafts 18, 20 are rotatable in the stationary part A of the machine frame and drive, through studs 23a and slots, hollow shafts 18a, 20a journalled in the movable part B of the machine. The shaft 18a carries a lever 28 pivoted to a link 29 slotted at 56 to engage a stud 31 on a pawl 24, which engages the teeth of a dividing ring 24a secured to the shaft 1 and is pivoted at 30 to a ring 9 angularly movable about the shaft 1 ; a spring 33 acts on the pawl. The shaft 18a also carries a lever 27 engaging a member 41 controlled by a spring 43 and acting as a guide for a part 35a of a pawl 35 whose end 25 co-operates with a toothed ring 25a secured to the shaft 1. The pawl 35 is pivoted to an arm 36 and is acted on by a spring 38 ; the arm 36 is rotatable about the shaft 1 and has thereon two bosses .39, 39a, which limit rotation of the arm by contact with adjustable stops 40, 40a on the ring 9. For adjusting the depth of cut, the ring is adjustable by a micrometer screw 57. In operation, whilst the roller 16 runs on the track 14a of cam 14, the pawl 24 engages the teeth of ring 24a and thus locks the shaft 1, and when the roller reaches the track 14b the arm 17 is raised to withdraw the pawl 24 from the teeth, and releasing the shaft 1. The lever 27 also is raised to raise member 41 and engage end 25 of pawl 35 with the teeth of ring 25a, and the stud 15 moves the lever 19 in the direction of the arrow F to rotate the arm 36, and thus the shaft 1 by the desired amount ; further rotation of the cam 14 returns the parts to the initial position. Indexing is limited by the stops 40, 40a, and depth of cut is adjusted by adjusting the limits of the indexing movement by means of the screw 57. For grinding a worm-wheel, the shaft 1 is given a partial rotation by a pawl 45 mounted on an arm 48, which is oscillated about the shaft 1 by any suitable means, and having thereon a roller 49 engaging a track 53 having an inclined end 55 and mounted adjustably on the ring 9, the pawl engaging a toothed ring 45a on the shaft 1. During grinding the pawl 24 is disengaged from ring 24a.
Patent GB-719769-A (GB)
Title: Coupling arrangement for pipe sections
IPC: F16L37/54
Filed: 1952-12-31
Abstract: 719,769. Pipe couplings. FOOD MACHINERY & CHEMICAL CORPORATION. Dec. 31, 1952 [May 3, 1952], No. 33059/52. Class 99 (1). Pipes 10, 14 are locked together by engagement of a pivoted latch 25 carried by one pipe with a lip 20 on the other, cam surfaces 41, 21 being provided whereby when the pipes are brought together the latch is guided into a position from which locking engagement can be effected. As shown, the lip 20 is formed on a socket 11 bolted on the section 10 and provided with a foot 11a for resting on the ground and a funnel segment 11b to facilitate insertion of the pipe 14, and the latch 25 is mounted on a band 28 clamped on the section 14 by a bolt 30 passing through an L-shaped pivot slot 33 in the tail 34 of the latch. On bringing the pipes together, the cam surfaces cause the latch to rock clockwise until the nose 26 of the latch rests on the top of the lip, next the corner 42 of the tail 34 engages the surface 21, the pivot 30 being at the bottom of the vertical part of the slot 33, then the latch rocks anti-clockwise so that the nose 26 engages behind the lip, and finally when the pressure forcing the pipes together is removed the latch drops until the pivot lies at the junction of the two parts of the slot and the tail 34 rests on the pipe. If a force be applied to separate the pipes the slot will allow a slight movement but the latch is locked against any clockwise movement. To uncouple the pipes, they are rotated relatively to one another until the latch is free from the lip, to avoid release by accidental rotation a notch 45 to receive the latch is provided in the lip, and to guide the latch into the notch a step 46 is provided up to which the latch is moved by relative rotation of the pipes, the latch being moved into the notch by a pull on the pipes.
Patent GB-536439-A (GB)
Title: Improvements in and relating to electric welding machines
IPC: B23K11/04
Filed: 1939-12-30
Abstract: 536,439. Welding. BRITISH THOMSONHOUSTON CO., Ltd. Dec. 30, 1939, No. 33099. Convention date, Dec. 31, 1938. [Class 83 (iv)] A resistance butt welding machine has a scale graduated in work size for setting the initial spacing and travel of the relatively movable work clamping jaws in accordance with the size of the work and another scale also graduated in work size for setting the welding pressure. The wires &c. 16, 17 to be welded, which have wedge-shaped ends at right angles to each other, are secured respectively on freely movable clamps 11, 12, the movable jaws of each of which are closed by cams 15 operated by hand levers 18 and opened by springs. The work engaging surfaces of the jaws are shaped to accommodate wires of different sizes. The movable clamp 12 is secured by a lever 24 and crank 25 to a shaft to which is attached a counterweighted lever 22 provided with an adjustable weight 29 for applying the welding pressure. The lever is provided with notches 31 graduated in terms of the diameter of the work to set the pressure to be applied and the weight is held in position in the notches by a latch 30. The other end of the lever is provided with a spring-pressed latch 37 which normally rests in a catch 36 carried by a member 34 which is adjustable by a hand-operated screw 46 in a fixed frame 51. Mounted in the frame also is a member 35 which is adjusted by a screw 47 connected by gearing to the screw 46. A progressive separation of the members 34, 35 is produced. This may be effected by using a gear 57 with a different number of teeth from the gear 55, by using screws of different pitches or by links. The member 35 has a pointer 58 moving over a scale 59 graduated in work size. This sets the initial spacing of clamps and the travel thereof for different sizes of work. In order to effect welding the latch 37 is withdrawn to free the lever 22 and the current then switched on to effect the weld the travel of the movable clamp being terminated by the lever 22 engaging the pin 42. The current is supplied by a transformer having a tapped primary 61, the tap switch 65 being set by positioning its pointer 73 on a dial 74 graduated according to the size of the work. The primary is closed by a switch 62 which is closed by a solenoid 66 energized when the starterswitch 69 in the contact circuit is closed. The switch 62 has auxiliary contacts 71 to complete a holding circuit for the switch 62. The switch 62 is de-energized at the end of the welding operation by cam 45 on lever 22 engaging the member 44 of a limit switch 43. The device 34, 35 may act directly on the wire holders instead of through a lever 22.
Patent GB-406438-A (GB)
Title: Improvements in joints or connections for rod ends
IPC: F16C11/06
Filed: 1932-11-23
Abstract: 406,438. Ball joints. BOUGHTON, E. B., EMMOTT, W., BROCK, D. T., Brock House, Langham Street, and CLENCH, E. C. S., Deering House, Deering Street, Bond Street, both in London. Nov. 23, 1932, No. 33158. [Class 65 (ii).] In a ball joint, particularly for a tie-rod in the steering gear of a vehicle, the position of the ball is made adjustable relatively to the member to which it is fixed, so that the effective length of the tie rod may be varied ; this is effected by making the ball 9 integral or rigid with a mounting member 4 which is rotatably mounted in the rod end 1 so as to be adjustable about its own axis, this axis being eccentric from the centre of the ball. Rotation of the mounting 4 in its socket in the rod end causes the centre of the ball to move in a small circle and thus to vary its position along the rod ; the ball is locked in position after adjustment by a nut 13 tightening the mounting 4 in its tapered socket. The ball bears in a bush 10 held in a housing on the other member 2 of the joint by a screw cap 12 ; lubricators, loading springs or weather-proof covers may be provided as required. The member 2 may be screw-threaded on to the part of the mechanism to which it is attached, in order to provide for further adjustment.
Patent GB-355124-A (GB)
Title: Improvements in or relating to containers for the roots of growing plants
IPC: A01G23/02
Filed: 1930-11-05
Abstract: 355,124. Pots for growing plants. MARSHALL, F., Roseville, Sterling Road, Burley-in- Wharfedale, Yorkshire. Nov. 5, 1930, No. 33216. [Class 6 (ii).] A container for the roots of a growing plant consists of a skeleton or reticulated framework made in two parts hinged together and adapted to enclose the roots so as not to interfere with their growth and to serve as a means for lifting the plant and the soil about its roots in transplanting operations. The container shown comprises top, bottom, and intermediate wire rings 1, 3, 2 interconnected by longitudinal wires 4, the bottom ring being crossed by wire members 5. The rings 1, 2, 3 are made in halves with loops 6, 7, 8 at the ends. The loops 8 of the bottom ring are connected together to form hinges and removable longitudinal wires 9 are passed through the loops 6, 7 to hold the two parts of the container together. The two separable halves of the container may be hinged at the side instead of the bottom. A modified container is made of reticulated metal mounted on a wire foundation or strengthened by wire rings or hoops. Handles may be provided to facilitate lifting and carrying.
Patent GB-335786-A (GB)
Title: Button sewing machine
IPC: D05B3/14
Filed: 1929-11-01
Abstract: 335,786. Fairweather, W., (Singer Manufacturing Co.). Nov. 1, 1929. Button-attaching machines. - A four-hole button-attaching machine has two parallel needles spaced apart for accurately entering the holes, and means for moving the needles and button relatively for producing parallel groups of stitches with no diagonal connecting thread. The needles 6 are spaced apart on the reciprocating needle-bar 5, at a distance equal to one side a, Fig 18, of the square of the holes of the button b held on the usual clamp 7. This clamp is reciprocated longitudinally of the bed 1 in the usual way by the feed-cam 8 on the wheel 9. The machine illustrated has no lateral feed for the clamp, and the length of its longitudinal feed is equal to the side c of the button-hole square. The wheel 9 is driven from the main shaft 10 by the worm gearing 11. A lower shaft 12 is also rotated from the main shaft 10 by the vertical rod 13 and bevel-gears 14, 15. The shaft 12 has a crank disc 20 connected by a pin 21 to a link 22 which in turn is connected by a pin 23 to a crank disc 24 on the trope shaft 19. The off setting of the centres of the shafts 12 and 19 from each other causes the shaft 19 to be driven with a variable fast-and-slow motion. The looper 18 is driven rapidly during its loop-seizing action, and more slowly during the lower part of its action. The path of the looper is circular and parallel to the plane of the needles. The looper seizes needle-thread loops from the needles and passes them simultaneously through the previously seized and spread loops, which are then cast off and drawn up. A loop positioner 25 is provided for holding the loops behind the descending needles. The shank of this member is mounted on the head 28 of the rock shaft 29 journaled in the boss 30 at the end of a bracket 31 on an arm 32 of a V-shaped rocking frame 33. This frame embraces the rib 35 and is operated by an eccentric 37 on the looper-shaft 19. A loop-spreader 50 is also provided for assisting the looper to spread the loops. Thread-cutters.-Cutting mechanism comprising a lever 62 fulcrumed at 63 on the underside of the thread-plate 17 and operated by the usual stop-motion device 16, is provided.
Patent GB-629856-A (GB)
Title: A hinge for pivotally connecting together members of deformable material
IPC: G02C5/22
Filed: 1947-12-17
Abstract: 629,856. Hinges. RATTI, G. Dec. 17, 1947, No. 33306. Convention date, Dec. 19, 1945. [Class 65 (ii)] [Also in Group XX] A hinge for connecting together members of somewhat deformable material, as shown, the front 1 and side 2 members of a spectacle frame, comprises a metal stirrup 3 fixed to the front and adapted to embrace a tenon 5 of the side member, said tenon being provided with one or more interposed metal blades 6 and formed with a hole for the pivot 7. In a modification one at least of the blades has at its free end a tongue adapted to engage a notch in the stirrup to form a stop. In a further modification, adapted to connect together link-like members, the stirrup is formed with two opposed pairs of arms.
Patent GB-521363-A (GB)
Title: Improvements in means for photographically recording the indications of an instrument
IPC: G03B17/24
Filed: 1938-11-16
Abstract: 521,363. Recording instrument readings. ZEISS IKON AKT.-GES. Nov. 16, 1938, No. 33365. Convention date, Dec. 24, 1937. [Class 106 (iv)] [Also in Group XX] For photographically recording the indications of an instrument such as a clock 5, or a speed or distance meter having a circular scale 6 so as to obtain uniform illumination of the whole of the scale, a condenser 3, 4 is employed so that the objective 7 produces an annular image of the whole of the illuminated scale. The lamp 1, reflector 2, annular condenser 3, 4, scale 6, and objective 7 are all arranged symmetrically about a single optic axis.
Patent GB-762265-A (GB)
Title: Improvements in or relating to closures for drums
IPC: B65D45/32
Filed: 1954-11-18
Abstract: 762,265. Closures for drums. ANDREASSEN, A. N. Nov. 18, 1954, No. 33411/54. Class 66. A drum of sheet material, such as plywood or wallboard, is formed with a coaxial shaped recess 5, Fig. 1, to accommodate a top disc 2, whereafter a metal hoop 3 is forced onto the drum to secure the disc in position. The disc 2 and drum 1 may be stepped as shown in Fig. 3.
Patent GB-324155-A (GB)
Title: Improvements in diaphragms
IPC: H04R9/04
Filed: 1928-11-16
Abstract: 324,155. Thompson, O. B. Nov. 16, 1928. Diaphragms; magnetic instruments.-The diaphragm and moving-coil unit of a loud-speaker is carried from a supporting frame by a plurality of arms or links whose points of attachment to the diaphragm and points of suspension from the frame lie in the vertical plane of gravity of the unit and are angularly displaced relatively to one another. In the construction shown, the diaphragm D consists of a small central cone 1 carrying the moving coil C and frustums W, 3, the periphery 3<1> of frustum 3 being connected to the frame F by a ring or annular plate d. Slits s are made in the ring d so as to form a number of arms b<1> - - b" whose points of attachment S<1> - - S‹ are angularly removed from the points of suspension a' - - a<6>. The arms are preferably concentric with the diaphragm as shown, but may be tangential to the curve thereof. In a modified construction (Fig. 3, not shown), the points of suspension from the frame F are arranged nearer the centre of the diaphragm than the points of attachment S<1> - - S<6>. According to the Provisional Specification the diaphragm may be provided with strengthening pieces.
Patent GB-1437873-A (GB)
Title: Method of manufacturing a rotor for vane-type engines
IPC: F01C21/08
Filed: 1974-07-30
Abstract: 1437873 Making vane-type rotors ALFRED TEVES GmbH 30 July 1974 [17 Aug 1973] 33569/74 Heading B3A [Also in Division F1] A method of making a rotor assembly for a sliding-vane pump or motor comprises: providing a rotor block 1 having a radial bore 2 for each position at which a vane 6 is to be inserted, the outer end of each bore 2 having upstanding edge portions, and the inner end terminating in a longitudinal bore 11; plastically deforming the edge portions of the bores 2 to form opposing shoulders 4 with a slot 5 between them; inserting a spring 9 in each bore 2 by mounting a compressed spring on a foot-piece 10 and inserting it sideways into the bore 11 until the spring expands into a bore 2; and inserting the vanes into the bores 2 so that they engage the springs. The bottom portion of the vane has a slot 11a, which fits over a rib 10a on the footpiece 10, and where it joins the upper portion a shoulder 12 is formed, against which the spring 9 bears.
Patent GB-1028143-A (GB)
Title: Mass flow measuring device
Inventor: DUFFY LAURENCE SIDNEY
IPC: G01F1/90
Filed: 1962-08-31
Abstract: 1,028,143. Automatic frequency control systems; frequency modulation. GEORGE KENT Ltd. Aug. 19, 1963 [Aug. 31, 1962], No. 33613/62. Headings H3A and H3R. [Also in Division G1] Two diode pumps feed a common capacitor C4 with opposite polarity pulse inputs, one diode pump pulse input being variable, e.g. in recurrence frequency and/ or pulse amplitude, due to a signal, and the other having its mean frequency determined by an oscillator retroactively controlled in frequency by the output of the common capacitor so that the mean frequency indicates the signal. The input may be an amplitude modulated carrier whose modulating frequency is made proportional to the signal, e.g. a rate of flow of fluid using a magnetic pick-up as in Specification 984,209, and after amplifying at J1 and full-wave rectifying at D1, D2, applied to a bi-stable circuit A1 whose output is a series of rectangular pulses of constant recurrence frequency equal to the modulation frequency. This feeds a mass flow-rate indicator through a diode pump D3, D4 whose pulse amplitudes (strokes) are varied by a temperature sensitive resistor RV1 and a manually set resistor RV2 so that changes in density due to temperature, or in specific gravity, may be allowed for. The D.C. voltage across capacitor C4 may be amplified by a chopper D.C. amplifier J4, A2 with synchronous demodulator J5, to produce a negative D.C. input over capacitor C8 to a bi-stable relaxation pulse generator A3, J6 so that when A3 conducts due to the input its output renders gate transistor J6 conductive to short-circuit the input. C8 is then discharged by a constant voltage (positive) through resistor R14, so that A3 and J6 are again blocked and this continues until, after a delay due to the time constant of R11, C8, which delay is inversely proportional to the voltage input at R11, the bi-stable relaxation oscillator A3, J6 again conducts and the cycle repeats at a frequency proportional to the voltage across C4 until the latter is discharged to zero by the diode pump J3, D5, D6 operated from the relaxation oscillator A3, J6. The variable frequency pulse output from A3 may be frequency divided and applied to counters indicating the total mass flow. The mass flow may be solids or a conveyer belt, its speed producing the proportional modulating frequency and the weight of solids on the belt varying the diode pump pulse amplitude set by RV2. Alternatively, for measuring the heat control of fuel gases, the volume flow can control the modulation frequency and the heat content the diode pump pulse amplitude. The temperature variable resistor RV1 may be in a probe in the fluid being metered.
Patent GB-1519360-A (GB)
Title: Rapid analysis of trace components in a liquid
IPC: G01N30/96
Filed: 1976-08-12
Abstract: 1519360 Analysis of ions in a liquid SUMITOMO CHEMICAL CO Ltd 12 Aug 1976 [12 Aug 1975] 33658/76 Heading G1B Ions in a liquid are analyzed by passing through a filter paper having anion exchange functional groups and/or chelating functional groups a liquid containing anions or metal or metal-containing ions capable of chelation by said chelating functional groups, to collect the ions from the liquid on the filter paper, and subsequently analyzing the ions collected on the filter paper. The anion exchange functional groups may be primary, secondary or tertiary amino groups, quaternary ammonium groups or groups containing a pyridene or pyridinium nucleus; chelating functional groups may be selected from thiourea, phenylthiourea, thiosemicarbazide, thiocarbazide, dithiocarbamate, dithiocarbamic acid, dithioic acid, thiol, polythiol, acetamino, iminodiacetato, o-aminophenol, ethylenediamino, polyethylenepolyamino or resorcinol groups.
Patent GB-342377-A (GB)
Title: An improved clip for use with newspapers
IPC: B42D17/00
Filed: 1929-11-06
Abstract: 342,377. Clips for newspapers &c. VOISEY, C. B., 11, Kensington Gardens Square, London. Nov. 6, 1929, No. 33726. [Class 146 (i).] A clip for holding a newspaper or other document by engaging over the fold thereof comprises a sheath a provided with a longitudinal slot b and a core c extending longitudinally within the sheath and attached thereto at or near one end by a pin, ring, or cord passing through the core and holes in the sheath. In one form, shown in the Figure, the core c is formed integrally with a cylindrical part d which is pressed into the sheath a and has a knob d<1> abutting against the end of the sheath. A spring member e presses the core c away from the slot b and is formed with a collar e<1> which is inserted between the sheath and the part d by slightly expanding the sheath. The parts a, d, e<1> are secured together either by riveting or by means of a hanging-ring f which passes therethrough. The insertion of the parts d, e<1> into the end of the sheath causes the slot b to be of greater width near the knob d<1>, and it is flared at the opposite end to facilitate insertion of the newspaper. In a modification, the core c is attached loosely to one end of the sheath by a loop of string, and the slot b is made narrower in width than the diameter of the core c to prevent the core slipping through the slot. The Provisional Specification describes a construction in which the core is integral with the sheath.
Patent GB-445828-A (GB)
Title: Improvements in rotary or oscillating drying apparatus
IPC: F26B11/04
Filed: 1935-12-05
Abstract: 445,828. Rotary drying - apparatus. FAIRWEATHER, H. G. C., 65, Chancery Lane, London.-(Aktiebolaget Svenska Maskinverken ; S÷dertõlje, Sweden) Dec. 5, 1935, No. 33729. [Classes 34 (i) and 34 (ii)] A rotary or oscillating drum drier for malt, grain, &c., is provided at one end with a double bulkhead 15 which receives steam from a forked pipe 29 and distributes it to tubes 23, thence to an exhaust chamber 18 at the other end, so that steam is supplied to and exhausted from the same trunnion 34. A heating jacket 12 also connects the chamber 18 with the bulkhead 15. The interior of the drum communicates through screens 50 with a vacuum chamber 51 and suction pipe 53. The tubes 23 form shelves in tiers to facilitate tumbling of the grain from one shelf to another and its delivery from the drum when the charging opening 24 is lowermost. Condensation is removed by baffles 41, 42, oscillating with the drum and having sloping walls 43 with openings 45, and a stationary trough 38 which is connected to the hollow fixed trunnion 34 ; a trap S, vacuum pump V, and water pump W are provided.