baber/WOPTO huggingface dataset:
Patent GB-1316973-A (GB)
Title: Lock unit
IPC: E05B45/08
Filed: 1970-06-15
Abstract: 1316973 Locks MINNESOTA MINING & MFG CO 15 June 1970 [16 June 1969] 28946/ 70 Heading E2A A lock unit comprises a pin tumbler lock mechanism having a rotatable member 12 movable from a first to a second position, said lock mechanism having a driver 19, 20 associated with each of the pin tumblers 14, a number of the drivers less than all of the drivers having a shape affording limited rotation of the rotatable member from the first position to the second position, a cam 36 joined to and rotatable with said rotatable member, said cam having at least one peripheral lobes, a cam follower engaging the cam and movable by the lobe or one of the lobes when the rotatable member moves from the first position; and a circuit -including a switch 45 activatable by movement of the cam follower, a time delay device actuatable by the switch and a signal device actuated by the time delay device after a predetermined time interval the circuit being made inoperative by deactivation of the switch within the time interval. The unit is intended to produce an audible or visible signal if too long a time is taken in rotating the rotatable member 12 from the first position to the second position in which a dead bolt (not shown) operated by the rotatable member is in releasing condition which could occur if an attempt is made to pick the lock unit. The cam has two lobes as shown so that rotation of the cam in either direction causes the switch to be operated. The drivers 19 is of cylindrical shape and the other drivers 20 are of dumbbell shape to permit some movement of the rotatable member 12 whether or not all the drivers 20 are raised by their pin tumblers 14 to the parting surfaces between the rotatable member 12 and a bore 11 in a housing 10. The driver 19 normally maintains the rotatable member in the locking position; the driver 19 is the rearmost driver as shown although it could be the front driver since one or other of these is the driver which would normally be picked first in an attempt to pick the lock; once this has been raised the dumbbell shaped drivers then permit the limited rotation of the rotatable member a few degrees from the locking position both to the right and to the left and make it difficult to pick the remaining tumblers. The extent of rotation is also enough to cause one or other of the lobes to move the cam follower to operate the switch and thus cause the signal device, which as shown is a horn, to sound provided the attempt to pick the lock mechanism is maintained for more than the interval provided by the delay circuit. Normal operation of the lock mechanism only causes momentary operation of the switch 45.
Patent GB-340303-A (GB)
Title: Improvements in electric cables
IPC: H01B9/06
Filed: 1929-09-25
Abstract: 340,303. Cables. STANDARD TELEPHONES & CABLES, Ltd. and SCOTT, T. R., Columbia House, Aldwych, London. Sept. 25, 1929, Nos. 29030/29 and 56/30. [Class 36.] In an impregnated paper cable, a reservoir for the impregnating fluid is disposed b e - tween the conductor and the main dielectric, the reservoir acting on the principle described in Specification 291,871, [Class 36, Electricity, Conducting &c.]. The reservoir comprises a layer of absorbent material which is not radially conductive and whose porosity is less than that of the main dielectric. The reservoir is bounded by a metallized surface, the absorbent layer being connected to the main dielectric by wicks of porous material, as described in Specification 337,042, [Class 36, Electricity, Conducting &c.]. A metal tape or a folded strip of metallized paper may be interposed between the reservoir and the conductor. Further reservoirs may be arranged directly under the lead sheath of the cable and at points in the insulation intermediate of the conductor and the lead sheath, in which case the intermediate reservoirs also function as intersheaths to which a potential may be applied. In order to assist in the feeding out of the impregnating fluid from the reservoirs, a narrow belt of highly absorbent paper may be applied over the outside of the reservoirs, either with or without the interposition of a thin layer of normal paper. In the construction shown, a cable comprises a conductor a insulated with sections b, b<1> of dielectric material, such as impregnated paper, enclosed in a lead sheath c. Reservoir layers d, e, f are provided as shown, and belts g of highly absorbent paper are disposed directly on the outside of the inner and intermediate reservoirs d, e. A number of cores provided with reservoirs as described and with earthed screens surrounding each core may be formed into a multicore cable.
Patent GB-1420158-A (GB)
Title: Spectrum analyser
IPC: G01R23/165
Filed: 1973-06-20
Abstract: 1420158 Spectrum analysis TAKEDA RIKEN INDUSTRY CO Ltd 20 June 1973 [20 June 1972] 29196/73 Heading G1U A conventional spectrum analyzer comprising an input mixer XI, Fig. 1, a voltage controlled oscillator OL, a sweep generator SO, a band pass filter F1, an amplifier A1, a detector D and a cathode ray oscilloscope C, is modified in that the sweep generator SO is adapted also to generate a steady D.C. output and in that the output of the bandpass filter Fl and the output of the oscillator OL are mixed in a second mixer X2 and applied, via a gate G1 which is opened by a clock Os for well defined periods when the sweep generator SO generates a steady D.C. to a counter N. By this modification, a single frequency component can be selected (by choosing the magnitude of the D.C. level appropriately) from the spectrum of the unknown input signal and displayed, on the c.r.o., as a stationary dot, and, at the same time, the frequency of the selected component is accurately measured by the gated counter arrangement G1, N. In the embodiment described the sweep generator is arranged to generate linear ramp signals and squarewave signals alternately, Fig. 2a, and a control unit K is provided which is arranged to reset the counter N at the beginning of each squarewave.
Patent GB-732926-A (GB)
Title: Improvements in or relating to boilers
Inventor: TROTT FRANK RUNCORN
IPC: F23M5/08
Filed: 1952-11-20
Abstract: 732,926. Furnace observation-devices. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Nov. 20, 1953 [Nov. 20, 1952], No. 29283/52. Drawings to Specification. Class 51 (1). A boiler is provided with a periscope arranged to present a view of the interior of the combustion chamber of the boiler.
Patent GB-319748-A (GB)
IPC: H01K1/42
Filed: 1929-09-27
Abstract: 319,748. British Thomson-Houston Co., Ltd., (Assignees of Illingworth, G.). Sept. 27, 1928, [Convention date]. Caps; holders.-The filament of a lamp bulb for use in optical-projection apparatus is positioned accurately with respect both to the usual terminal base and to a cap fixed upon the other end of the bulb. In making a bulb, a ring 15 to which the lamp pins 20 are attached is clamped in an aperture in an arm 18, Fig. 1, of an assembling-device, and a cap 16 for the other end of the bulb is mounted by means of its projection 35 in a gauge 33, and the bulb is placed in a pair of clamps 23, 24 with its base 11 in the ring 15. The bulb is then adjusted axially by sliding it in the clamps, and laterally by moving the clamps, to position the filament 12 with respect both to the projection 35 and the pins 20, as determined by two optical finders 41. The ring 15 is then soldered to the base 11 and the cap 16 is cemented to the bulb. In the optical-projection apparatus the projection 35 is inserted into a socket 47, into which it is pressed by a spring in the base socket 45. The pins 20 are positioned by notches in the socket 45.
Patent GB-906936-A (GB)
Title: Improvements relating to hand operated knitting machines
IPC: D04B39/00
Filed: 1958-09-15
Abstract: 906,936. Knitting-machines. HORI, S. Sept. 15, 1958, No. 29530/58. Class 74 (2). Sinkers 2 are pivotally mounted in a flat hand-operated machine and are operated by rods 8 having butts 8<SP>1</SP> engaged by cam grooves 11 in the cam carriage to cause the sinkers to pivot and engage the fabric extending from the needles. The needles are thereby given restricted movements, the sinkers initially holding the loops on the needles stationary whilst the needles are advanced preparatory to receiving the yarn for the next course, whereafter the sinkers are pivoted upwardly to push the old loops along the needle shanks prior to the needles being withdrawn to cast off the old loops. Needle selection is achieved by the provision of resiliently biased pivoted cams which are actuated by the needle butts after the initial needle arrangement has been selected by hand. The needle butts thereafter cause the cams to rise or fall to ensure similar selection of the needles throughout the movement of the cam carriage.
Patent GB-395215-A (GB)
Title: Improvements in buoyant apparatus for marine purposes
IPC: B63C9/04
Filed: 1932-10-24
Abstract: 395,215. Buoyant stuffing-materials. G E I T M A N , T., 47, Kollnischestrasse, Niedersch÷nweide, MEHRTENS, P. W., 88, B³lowstrasse, and STADELHOFER, J., 10A, Regensburgerstrasse, all in Berlin. Oct. 24, 1932, No. 29677. [Class 77.] Buoyant apparatus for marine purposes is filled with independent cells 4 of regular or irregular shape which are adhesively united for example by introducing an adhesive into the form which corresponds to the shape of the raft &c. or by forming the covering of the cells of a material which becomes adhesive on treatment by heat or with gases, liquids, &c. The body so formed is provided with a cover 1 or the form in which the cellular structure is moulded may be used as a cover.
Patent GB-394212-A (GB)
Title: Manufacture of solutions of fibroin
IPC: D01F4/00
Filed: 1932-10-24
Abstract: Fibroin is dissolved in a solution of a mixture of two or more hydrated salts, for example, solutions containing two or more of the thiocyanates of sodium, magnesium, barium, lithium, manganese and zinc.  Acid amides may be present according to the process of Specification 375,242.  In examples, (1) degummed natural silk is dissolved in a solution of sodium thiocyanate and magnesium thiocyanate; (2) silk is dissolved in a solution containing the thiocyanates of sodium and barium, and (3) silk wastes are kneaded into a solution of the double salt di-sodium magnesium thiocyanate until solution has occurred.  The solution obtained may be purified by dialysis and used in the preparation of spinning solutions or plastic masses.  Specification 360,804 (as open to inspection under Sect. 91) is referred to.  The Specification as open to inspection under Sect. 91 refers also to the production of a water soluble paste, and contains the following additional examples, (1) silk wastes are swollen in a solution of sodium thiocyanate and converted partly into solution and partly into a water soluble paste by the addition of a solution of magnesium thiocyanate; (2) silk wastes are converted into a soluble paste by means of a solution containing both sodium thiocyanate and barium thiocyanate; and (3) silk is converted to a soluble paste by means of a solution containing sodium thiocyanate and lithium thiocyanate.  This subject-matter does not appear in the Specification as accepted.
Patent GB-238758-A (GB)
Title: Improvements in or relating to card-clothing
IPC: D01G15/84
Filed: 1924-12-10
Abstract: 238,758. Gullung, P. Dec. 10, 1924. Cards, wire.-In card clothing of the type in which the prongs of the teeth which project above the flexible base are straight and inclined at an angle to the base, one half of the total height of the card comprises the base 1 and the other half comprises the prongs of the teeth 5, which are bent so that the knees 8 .are flush with the surface of the base. The base may be of any suitable material, and the teeth of triangular, circular, &c. cross-section. The clothing may be made in strips, fillets, or sheets. Specification 21093/05 is referred to.
Patent GB-1371308-A (GB)
Title: Device for automatically finishing and grouping packaging containers
Inventor: DOMINICI ANTONIO
IPC: B65B61/24
Filed: 1973-06-22
Abstract: 1371308 Packaging apparatus QUEPOR SA 22 June 1973 [10 July 1972] 29765/73 Heading B8C In a device for folding and fastening four ears 69 of prismatic containers 68, formed by subdividing a liquid-filled tube with transverse seals 70, a container is moved on to stationary table 4 where ears 69 are gripped between jaws 31 and tongues 9 of brackets 8 mounted on a plate 5 reciprocable by gear sector 15 engaging rack 16. The container moves to position 68a where cylinders 29 open jaws 31, and plate 5 returns to engage the next container. A plate 11 bearing pawls 23 is mounted on plate 5 which bears pawls 20, the pawls engaging seals 70 on the forward strokes to advance the containers. At position 68b, heat or an adhesive is applied by heads 36 to the open ears 69, whereafter, at position 68c, swinging plates 40 of units 35 fold down and press the ears on to the container. Plates 32 and then 33 hold the ears down as the containers proceed to a pivoting discharge table 41, which tilts when feeler 71 is actuated to deposit a group of containers on to a tray 73 or another conveyer.
Patent GB-834086-A (GB)
Title: Proportioning type liquid dispensing apparatus
IPC: B67D7/74
Filed: 1957-09-23
Abstract: 834,086. Mixing fluids in flow. GILBERT & BARKER MANUFACTURING CO. Sept. 23, 1957 [Oct. 4, 1956], No. 29795/57. Class 86 [Also in Groups XIX and XXIX] Liquid dispensing apparatus adapted to deliver a mixture of two liquids in predetermined proportions comprises electric motor driven pumps 3, 3<SP>1</SP> which may be of the type described in Specification 720,797, and which suck the liquids from pipes 2, 2<SP>1</SP> to meters 5, 5<SP>1</SP> of the reciprocating piston type, whose shafts 6, 6<SP>1</SP> are interconnected by gearing adapted to produce predetermined blends, which gearing also drives a shaft 7 of registering means 8 which registers on counters q and c the quantity and cost of the mixture supplied. The motors 3, 3<SP>1</SP> may be simultaneously switched on by operating a handle 33 connected by linkages to switch-operating levers 23, 23<SP>1</SP>. The liquids pass from the meters 5, 5<SP>1</SP> via pressure regulating valves 61, 61<SP>1</SP> (see Group XXIX) and normally open stop valves 10, 10<SP>1</SP> to a casing 12 where mixing takes place, the resulting mixture passing through a delivery hose 14 to a nozzle 15. Gearing for producing a 50-50 mixture is mounted on plate 34 shown in Fig. 3 and comprises spur gears 43, 47 connected to the shafts 6, 6<SP>1</SP>, idler gears 44, 45, 46 and a gear 48 connected to the counter shaft 7. The gears 43-48 are of equal pitch diameter, and the gears 44, 46 are connected by studs 50 and may be raised out of engagement with the adjacent gears thereby enabling the meters 5, 5<SP>1</SP> to be calibrated. Gearing mounted on reversible plates for producing 40-60 and 30- 70 mixtures is also described (Figs. 5, 6, not shown).
Patent GB-257793-A (GB)
Title: Apparatus for and method of hydrating lime
IPC: C04B2/08
Filed: 1925-11-26
Abstract: 257,793. Miscampbell, H. Nov 26, 1925. Continuous discharge apparatus with moving containers.-In hydrating lime mixed lime and water are passed to a hydrator which comprises a rotatable receptacle 13 provided with an inner cylinder 32 which rests on the floor thereof and is adapted to be raised on a central fixed spindle 51, about which it rotates, by chains 85 and a rotatable rod 86. A fixed framing 60 carries spider arms 30 which radiate from the spindle 51 and support an oval framing comprising bars 65, the bars carrying vertical stanchions 29 on the lower ends of which ploughs 28 are mounted. The ploughs in one section of the oval are disposed to divert the material in a direction opposite to the direction in which it is moved in the adjacent sections. In use, as material is fed to the hydrator, its level therein rises until it overflows the cylinder 32 and is thus continually discharged through an annular aperture 59 in the floor of the hydrator. If, however, the cylinder 32 is raised, an adjustable stationary blade 66 sweeps all the material in the hydrator through the aperture 59.
Patent GB-655825-A (GB)
Title: A process for the manufacture of commutator segments, for use in electric motors, generators, and such like equipment, from copper oxide powder
IPC: H01R43/06
Filed: 1948-11-18
Abstract: 655,825. Powder metallurgy; making commutator segments. ASKAM, E. S. Nov. 18, 1948, No. 29953. [Classes 83 (ii) and 83 (iv)] A process for manufacturing commutator segments comprises pressing copper or copper oxide powder, graphite and stearin in a shaped mould, sintering the compact in a protective atmosphere and again pressing in a mould. Silica and/or beryllium powder may be added. The powders are between 100 and 400 mesh and preferably dendritic in shape. The compacts are pressed at 5 to 40 tons per square inch and sintered at 800-1080‹ C. for 5 to 30 minutes in a hydrogen, cracked ammonia or partially-burnt town gas atmosphere. They are then allowed to cool for 40 minutes in the same atmosphere and sized at 15 tons per square inch. A preferred powder mixture contains 2 per cent graphite and “ per cent stearin by weight.
Patent GB-533683-A (GB)
Title: Improved apparatus for screening projected film pictures
IPC: G03B21/62
Filed: 1939-11-13
Abstract: 533,683. Projection screens. PIMBLETT, L. G. Nov. 13, 1939, Nos. 29990 and 29991. Convention dates, Dec. 3, 1938 and Aug. 9, 1939. [Class 97 (i)] A projection screen 7, viewed in a direction 8 by reflection in a mirror 9, is adjustable about hinges 10, and is held in adjusted position by a corrugated leaf spring 12, or by pegs through holes in a proscenium 11, or by other means. The screen may be glass frosted on one or both sides. The mirror 9 may be hinged and held similarly to the screen, or may consist of a number of strips 15, Fig. 3, having their upper edges 16 bevelled and held by slots 18 in end brackets 17. A speaker horn 13 may be carried by a sounding board 14. The beam 5 from the projector 6 may reach the screen 7 directly, or by reflection in a mirror.
Patent GB-356525-A (GB)
Title: Improvements in metal canisters and the like
IPC: B65D43/02
Filed: 1930-10-07
Abstract: 356,525. Metal canisters &c. WILLIAMSON, G. E., Lake House, Malvern, Worcestershire. Oct. 7, 1930, No. 30042.- [Classes 18, 66, and 125 (iii).] The mouth edge of a metal box or canister adapted to bed on a yielded sealing member of indiarubber &c. disposed within the lid to form a vacuum closure is rendered smooth by a coating of metal such as tin or solder, applied by a soldering iron or by dipping the mouth in a bath of the molten metal. The mouth 4 of the container may be bent inwardly to engage centrally the sealing member 6 disposed in a channel 5 in the lid, as shown in Fig. 1, or the edge of the lid may be outwardly extended, as in Fig. 3, to effect the engagement. The .body may be stiffened by an outward bead 9.
Patent GB-747336-A (GB)
Title: Improvements for sealing means for glazing unit
IPC: C03C27/10
Filed: 1954-10-19
Abstract: 747.336. Glass blocks. PITTSBURGH PLATE GLASS CO. Oct. 19. 1954 [Jan. 22, 1954], No. 30044/54. Class 56 The tapered pore hole in one of the sheets 12 of a glazing unit is sealed by (a) filling the opening with air-and-waterproof mastic 20 (e.g. a mixture of polyisobutylene and carbon, (b) putting a metal cap 22, e.g. of lead, over the mastic, and (c) putting a synthetic resin cover 24 over the metal cap, the resin extending over the edge of the cap on to the glass.
Patent GB-737680-A (GB)
Title: Improvements in or relating to overload relays and alternating current systems employing such relays
IPC: H02H3/08
Filed: 1952-11-27
Abstract: 737,680. Electromagnetic relays; protective cut-out systems. GENERAL ELECTRIC CO., Ltd., ATHILL, W. F., and HICKS, D. G. Nov. 18, 1953 [Nov. 27, 1952], No. 30144/52. Class 38 (5). A relay 3 intended to trip a main contactor 4 having contacts 5, 6 supplying a load 2 from a high-frequency source 1 (e.g. 1600 c.p.s.) in the event of the load current exceeding a predetermined value, comprises a winding 15 of a few turns serially connected in the load circuit and mutually coupled to a winding 16 of a great number of turns, a rectifier 17 and adjustable resistance 18 being connected across the winding 16. An armature associated with the winding 16 operates a micro-switch 13 in the holding circuit of the operating coil 9 of the main contactor 4 at a current value determined by the resistance 18. The winding 16 may be part of a standard Post Office type 3000 relay and the winding 15 wound thereover, the armature being positioned within the winding 16. The contactor coil 9 is energized with D.C. through a rectifier 8 upon closure of a start button 10, the contactor being held closed upon release of the button 10 by a circuit comprising holding contacts 7 and a lamp 11.
Patent GB-978720-A (GB)
Title: Hydrocarbon conversion process
IPC: C10G65/12
Filed: 1963-07-30
Abstract: Hydrocarbon oils, preferably boiling in the range 300-1,000 DEG  F., containing nitrogen are subjected to catalytic hydrodinitrogenation and fractionated to remove a bottoms fraction and the bottoms-free fraction is catalytically hydrocracked to gasoline. Hydrofining is effected conventionally preferably to a nitrogen content below 2 p.p.m.  Preferably less than 10% wt. of the refined material is removed in the distillation except when the straight chain paraffin content is 15-70% wt. when up to 30% may be removed and this bottoms fraction subjected to catalytic cracking. Hydrocracking is effected at 400-1,000 DEG  F., 200-2,000 p.s.i.g., 0.1-10 vol./vol./hour with 1,000-10,000SCF of hydrogen per barrel.  The catalyst comprises an acidic cracking catalyst and a hydrogenating component, e.g. a Group VIII metal, and preferably also S, As, Sb, Pb, Hg, Cu, Ag, Zn, or Cd. Fluorine may be added to the feed.
Patent GB-305716-A (GB)
Title: Improvements in or relating to bituminous emulsions
IPC: C08K5/098
Filed: 1927-11-11
Abstract: 305,716. Montgomerie, J. A. Nov. 11, 1927. Emulsions, making.-To an aqueous emulsion of the kind artificially prepared from petroleum, such as Mexican asphalt, a small quantity of a salt of lauric acid or an aqueous solution of such a salt is added. An example refers to the addition of 0.15 per cent of sodium laurate reckoned on the weight of the bitumen. This treatment is stated to improve the wetting, spreading and penetrating power of the emulsion. Specification 226,032 is referred to.
Patent GB-139444-A (GB)
Title: Improvements in or relating to children's scooters
IPC: B62K3/00
Filed: 1919-12-04
Abstract: 139,444. Watson, D. Dec. 4, 1919. No Patent granted (Sealing fee not paid). Foot-cycles.-To absorb shocks due to passing over uneven surfaces, an arm 2 rising from the platform 1 of a child's scooter. is connected to the steering pillar 5 by a pin 6 passing through U- shaped members 3, 4 and surrounded by a spring 7.
Patent GB-735326-A (GB)
Title: Improvements in or relating to fine tuning devices for television receivers
IPC: H03H5/00
Filed: 1952-12-02
Abstract: 735,326. Inductances. STANDARD COIL PRODUCTS CO., Inc. Dec. 2, 1952 [Dec. 13, 1951], No. 30570/52. Class 38 (2). [Also in Groups XXXVI and XL (c)] A tuning arrangement for a multi-channel television receiver comprises a plurality of tuning inductors printed on rotatable discs as described in Specification 720,374, a further inductor 63 comprises a coil of wire wound round a resistor 62 with which it is connected in parallel as illustrated in Fig. 3 (not shown), the Q of the coil being lowered by the resistor 62 and thus resulting in a broader frequency response. Specification 720,381, [Group XXXVI], also is referred to. Reference, has been directed by the Comptroller to Specification 720,381, [Group XXXVI].