baber/WOPTO huggingface dataset:
Patent GB-474447-A (GB)
Title: A new or improved compound fabric
IPC: D06M17/00
Filed: 1936-02-28
Abstract: 474,447. Compound fabrics. SLADDIN, A. G. Feb. 28, 1936, No. 5973. [Class 140] A compound fabric for use in the manufacture of collars for outer garments consists of a non- extensible closely-woven fabric cut on the straight, and treated on one surface with an aqueous dispersion of rubber, in combination with a woven stiffening material, e.g. canvas or the like which is cut on the bias, and which may also be treated upon one surface with an aqueous dispersion of rubber, the fabric and stiffening material being brought together under pressure to cause them to adhere together. In a modification, the fabric and stiffening material are secured together only at predetermined parts thereof. Specification 445,930 is referred to.
Patent GB-286875-A (GB)
Title: An improved percussion boring tool
IPC: B28D1/00
Filed: 1927-03-03
Abstract: 286,875. Rawlings, J. J., and Rawlplug Go., Ltd. March 3, 1927. Percussive drills.-A tool for boring holes in stone, plaster and the like comprises a shank with a tapered end 2 for inserting in a holder, and three or more tapered grooves, widest and deepest at the cutting end. The taper of the grooves extends along part of their length 3a, the remainder being parallel.
Patent GB-366747-A (GB)
Title: Improvements relating to sparking plugs for internal combustion engines
IPC: H01T13/36
Filed: 1931-02-26
Abstract: 366,747. Sparking-plugs. EDGE, W., 10, Burton Street, Rishton, near Blackburn. Feb. 26, 1931, No. 5990. [Class 7 (iv).] The plug is double-ended and reversible. A gland D of insulating material screws into or over the ends of the two casings A, A<1>. The exposed end is covered with a cap F in which is mounted a contact G and terminal H. The insulator B may be threaded to engage the casing ends. It may be of porcelain, mica or steatite ; the intervening collar D, when of mica, may separate threaded metallic sleeves.
Patent GB-673141-A (GB)
Title: Improvements in tuning indicator systems for frequency-modulation receivers
IPC: H03J5/24
Filed: 1950-03-10
Abstract: 673,141. Valve circuits for radio reception; limiters. HAZELTINE CORPORATION. March 10, 1950 [May 28, 1949], No. 6077/50. Classes 40 (v) and 40 (vi). In a frequency-modulation receiver, in which the presence of a limiter renders accurate tuning by ear difficult, tuning is facilitated by the use as a limiter of a valve in which the transconductance is controllable subsequent to the point at which limiting occurs, being controlled by a voltage dependent upon the amplitude of the signal before limiting. The limiter 15 is of the grid-bias.type in which the grid leak 20 is returned to the cathode; the suppressor 25 is earthed, while the cathode circuit comprises resistance 24 and a decoupling condenser 30. In the absence of a signal the grid bias is small and the cathode current high, so that a negative potential is developed across resistance 24, i.e. between cathode and suppressor which renders the transconductance to the anode low. Grid current rectification, which occurs when a signal is applied, produces a negative grid-bias causing reduction in cathode current to a value which is a minimum when the set is accurately tuned; the corresponding decrease in potential difference between cathode and suppressor produces an increase in the transconductance to the anode despite the fall in cathode current, so that the output increases to a maximum at the proper tuning point. The variation in output may be made greater by applying to the suppressor grid a positive bias derived from the signal before limiting, by means of a diode rectifier fed either from the same I.F. circuit as the limiter, Fig. 2 (not shown), or alternatively from a sharply-tuned circuit which is loosely coupled to the primary of the I.F. transformer feeding the limiter, Fig. 3 (not shown). Specification 673,142 is referred to.
Patent GB-1499727-A (GB)
Title: Derivatives of 5-hydroxy-2,3-dihydro-1h-dibenzo(2,3:6,7)thiepino and oxepino-(4,5-c)pyrrole methods for their preparation and compositions containing them
IPC: C07D495/04
Filed: 1975-02-13
Abstract: 1499727 2,3 - Dihydro - 1H - debenzo- [2,3; 6,7]thiepino- or oxepino-[4,5-c]-pyrroles CIBA-GEIGY AG 13 Feb 1975 [22 Feb 1974] 6150/75 Heading C2C Novel compounds I and salts thereof in which X is O or S, R is OH or alkanoyloxy and R 1  is C 1-7  alkyl or C 1-7  alkenyl are prepared by (1) reacting a compound II in which X 1  and X 2  are reactive esterified hydroxy groups with an amine R 1 NH 2  or (2) alkylating or alkenylating a compound IV compounds I (R = OH) are also prepared by hydrolysing a corresponding ether or ester derivative or by diazotization of a 5-amino group; compounds I (R = alkanoyloxy) are also prepared by acylating a compound I (R = OH); and a compound I obtained may be converted into the salts or a salt thereof converted to the corresponding free base. Compounds I have CNS-depressant and agitation-inhibiting activity and form with a carrier a pharmaceutical composition which may be administered orally or parenterally.
Patent GB-684455-A (GB)
Title: Removable platform for ships' holds and the like
IPC: B63B25/18
Filed: 1951-03-14
Abstract: 684,455. Platforms for ship's holds. KUMMERMAN, H. March 14, 1951. No. 6108/51. Class 113 (i). A removable platform for supporting cargo comprises side sections 7, 11, hinged to the ship's side, and rolling sections 13, supported on the hinged sections in the working position, and stowed at'the hatch end, similarly to hatch covers, when not required. Stanchions are provided to support the platform in its working position. Specification 631,003 is referred to.
Patent GB-1421893-A (GB)
Title: Apparatus for and method of venting telescopic hard shell capsules
IPC: A61J3/07
Filed: 1974-02-11
Abstract: 1421893 Ancillary capsule-making apparatus PARKE DAVIS & CO 11 Feb 1974 [12 Feb 1973] 06192/74 Heading B8C Apparatus for venting hard-shell telescopic capsules after filling comprises a reservoir 10 from which filled capsules are fed to a work station via a reciprocating feed tube 12 driven by an oscillating sector wheel (40) (see Fig. 5, not shown) operating on the vertical rack 41. At the work station, the capsules are held by a gate 14 operated by a projecting knee engaging a gate lifter 18 which, in turn, is operated by the reciprocating movement of the push blade 45 operating in the rollway 46 to remove finished capsules (the push blade being operated by a second (horizontal) rack 44 driven by the same sector wheel as is rack 41-see Fig. 5), which gate lifter releases the capsule after it has been held in the work position whilst a set (e.g. 4 or 7) of heated piercing elements 27 perforate the capsule wall. The elements 27 are heated by contact with a thermostatically controlled heated block 25, the whole being mounted on a carriage 23 which reciprocates horizontally as the feed tube to which it is attached by bracket 20 moves vertically by virtue of the spring- biased cam follower wheel 30 following the surface of cam 31 (the exact portion of which is adjustable). Whilst only a single feed tube is shown, there may be a plurality of parallel feed tubes each with associated reciprocating piercing mechanism (see Fig. 2, not shown).
Patent GB-149380-A (GB)
Title: Improvements in or relating to the balancing of engines
IPC: F16F15/26
Filed: 1919-03-12
Abstract: 149,380. Fedden, A. H. R., Butler, L. F. G., and Cosmos Engineering Co. March 12, 1919. Radial-cylinder, engines; balancing moving parts in engines of unspecified type.-A crank-shaft is provided with balance weights which act directly on the big end of the connecting-rod and not through the intermediary of the crank-pin. In the example shown the big end of the master connecting-rod of a radial-cylinder engine is formed with flanges D<1> on which are pivoted bearings H<1> at the ends of shanks carrying balance weights H. The latter are slotted to receive square blocks J<2> which are secured to the balancing extensions G of the crank webs by bolts J, clearance H<2> being left to allow for wear in 'the bearings.
Patent GB-547270-A (GB)
Title: Improvement in thermo-responsive electric switches
IPC: H01H37/76
Filed: 1941-05-14
Abstract: 547,270. Thermal switches. SPECIALTIES DEVELOPMENT CORPORATION. May 14, 1941, No. 6227. Convention date, June 29, 1940. [Class 38 (v)] In a thermal switch operated by the disintegration of a combustible &c. element, more than one of such elements are used, to minimise accidental operation, and the springs actuating the contacts are not part of the electrical circuit. In the example pairs of contacts 8, 9 and 10, 11 in a warning circuit are bridged by loosely pivoted contact plates 24 mounted on plungers 20, 21 in recesses of a casing 15. Normally the plates 24 are held up by threads 30 of cotton, silk, celluloid &c. held at their ends in the plungers 20, 21 and plungers 33, 34 at the top. Springs 27, 37, the latter being stronger, serve to maintain tension of the threads 30 and ensure operation of the plates 24. The lower springs only may be used. The circuit is arranged so that all the threads must fail before the warning is given. Instead of making the circuit between the contacts, on failure of the threads, in a modification the contacts are broken, thereby releasing relays.
Patent GB-879367-A (GB)
Title: Improvements in pneumatic tyres
Inventor: SMITH REGINALD SARGENT JAMES
IPC: B60C9/28
Filed: 1957-02-26
Abstract: 879,367. Pneumatic tyres. DUNLOP RUBBER CO. Ltd. Feb. 17, 1958 [Feb. 26, 1957], No. 6355/57. Class 144 (2). A pneumatic tyre cover has a carcass reinforcement of parallel cords each of which follows a continuous path from bead to bead to provide a cord angle of from 75 to 90 degrees to the circumferential throughout the sidewall regions, changing to a cord angle of less than 30 degrees in the tread region. In a preferred construction the cord angles are 90 and 20 degrees and the tyre section in the unloaded, inflated condition, has a greater axial width than radial height. The cord angle may change either gradually, Fig. 2, or abruptly, Fig. 3. Any number of pairs of cross-laid plies may comprise the reinforcement and the carcass may have one or more breaker strips with a cord angle either the same as that in the tread region of the carcass plies, or of 90 degrees. The tyre carcass may be formed as described in Specifications 879,368 or 808,341.
Patent GB-732506-A (GB)
Title: Apparatus for viewing transparencies
Inventor: RADLEY RONALD NETERFIELD
IPC: G03B23/12
Filed: 1953-03-09
Abstract: 732,506. Changing signs. WOODMANSTERNE, G. Feb. 26, 1954 [March 9, 1953], No. 6448/53. Class 3(1). [Also in Group XX] In apparatus for viewing colour slides and other transparencies comprising a source of diffused light, the transparencies 19 are attached to a non-rotatable horizontal support, preferably a bar 14, and can be rotated individually from a storage position 20, in which they hang from the support, into a viewing position. Preferably the transparencies are attached to the bar by a pair of rings 16. In the form shown, the screws 15 and the tip of hood 4 provide the necessary support to hold a transparency in the viewing position (shown in broken lines). The play provided by the rings 16 enables the transparency to be manipulated so that it clears the hood 4 and falls back into the storage position. A flat part 2 of opaque sheet 1, suitably treated and illuminated by the strip filament lamp 11 provides the source of diffused light. The switch 10 in a suitably bent part 5 of the sheet 1 operates lamp 11.
Patent GB-720796-A (GB)
Title: Manufacture of catalysts containing platinum and alumina
Inventor: HAENSEL VLADIMIR
IPC: B01J23/40
Filed: 1953-03-10
Abstract: Hydroforming of gasoline is carried out in the presence of a platinum-alumina catalyst prepared by dissolving a sulphide of platinum in nitric acid or sulphuric acid, mixing the solution with alumina, and calcining at about 260-650 DEG  C. (see Group III). A two-stage process may be used, the first stage involving aromatization and being effected with a halogen-free catalyst at 425-600 DEG  C., 3.5-50 atmospheres pressure, a weight hourly space velocity of 2-20 and a hydrogen to hydrocarbon mol. ratio of 1-6 : 1, and the second stage involving hydrocracking and being effected with a catalyst containing halogen or silicon at 315-540 DEG  C., 34-68 atmospheres pressure, a weight hourly space velocity of 0.2-5 and a hydrogen to hydrocarbon mol. ratio of 2-10 : 1.  Fixed bed, fluidized, moving compact bed, or slurry processes may be employed.ALSO:A platinum-alumina catalyst is prepared by dissolving a sulphide of platinum in nitric acid or sulphuric acid, mixing the solution with alumina, and calcining at about 260 DEG -650 DEG C. The platinum sulphide may be precipitated by treating a platinum-containing solution with hydrogen sulphide and washing the precipitate; solutions of chloroplatinic acid, ammonium platinum chloride, trimethylbenzyl ammonium platinum chloride, tetramino platino chloride, or ammonium platino nitrate may be so treated, and an aluminium salt may be present to assist precipitation.  Solution in the acid takes place at 100 DEG -750 DEG C. and excess acid is removed by heating.  The alumina may be prepared by precipitation from a solution of an aluminium salt and may be either mixed wet with the platinum-containing solution or first dried and calcined at 540 DEG -750 DEG C.  Preferably the final catalyst contains 0.01-10 per cent by weight of platinum. Halogen may be present in an amount of 0.05-8 per cent by weight of the catalyst; for example a solution of hydrogen fluoride or hydrogen chloride may be added to the wet or dried alumina or to the platinum-alumina composite; silica may also be present.  The catalyst may be reduced with hydrogen before or after calcination, and is useful in the hydroforming of hydrocarbons (see Group IV(b)) and in hydrogenation and dehydrogenation of organic compounds.
Patent GB-171334-A (GB)
Title: Improved metal screw for use in woodwork
IPC: F16B25/00
Filed: 1921-02-28
Abstract: 171,334. Hardy, R. E. Feb. 28, 1921. Drive-screws and wood-screws.- A drive-screw for use in woodwork has longitudinal grooves or plain surfaces c and a gimlet point d. The screw is driven home with a hammer and then locked by a quarter-turn with a screwd r i v e r . Specifications 3650/75, 3476/80, 448/82, 6941/84, 4149/07, and 100,857 are referred to.
Patent GB-1477130-A (GB)
Title: Manufacturing process of porous tubular members
IPC: B28B21/72
Filed: 1972-02-11
Abstract: 1477130 Filter element COMMISSARIAT A L'ENERGIE ATOMIQUE 11 Feb 1972 [16 Feb 1971] 6624/72 Heading BID A porous tubular element comprising an outer coarse-textured layer and an inner finetextured layer is made by coating a rigid core with a layer of the fine-textured material and placing the coated core inside a tube made from the coarse-textured material and an organic binder, compressing the tube on to the core, decompressing so that the finetextured layer is attached to the inside of the coarse-textured tube, withdrawing the core, and baking the assembly. In an example, an element is made from alumina of different particle sizes using a cellulose ester binder. The element may be used as a filter or a catalyst support.
Patent GB-308068-A (GB)
Title: Improvements in or relating to meat clamps for use with slicing machines
IPC: B26D7/02
Filed: 1928-03-03
Abstract: 308,068. Automatic Scale Co., Ltd., and Blick, E. L. March 3, 1028. Cutting slices in succession.-The meat clamp of a slicing-machine is provided with an auxiliary, and preferably detachable, clamping member which has gripping means especially suited for use with soft meats, said member being passed over the ordinary clamping face of the clamp and secured thereto. As shown in Figs. 1, 2, the ordinary clamp consists of a bar 7 and a U-sectioned gripping portion 8 screwed thereto, the portion 8 having teeth 8<a>. The auxiliary member consists of a U-sectioned member or shoe 9 having spikes 9<a> on its underside. The shoe 9 embraces the teeth 8<a> and is retained thereon by spring tongues 9<c> which are disposed on one side of the bar 7 whilst projections 9<d>, secured to the shoe, are disposed on the other side. In a modification, the auxiliary gripping surface is shaped to hold rolled meats and consists of a bent sheet metal strip riveted at its centre and ends to the shoe. The spring tongues are formed from extensions of the metal strip. The spring tongues may be replaced by screws, snap fasteners or cam-locking means, and the auxiliary device may be hinged to the clamp bar instead of being totally removable therefrom.
Patent GB-581191-A (GB)
Title: Improvements in electrical multiple plug pin couplings
IPC: H01R24/00
Filed: 1944-04-12
Abstract: 581,191. Two-part couplings. REVO ELECTRIC CO., Ltd., FELTON A. E., and MASON, G. G. April 12, 1944, No. 6708. [Class 38 (i)] A multiple plug-pin electric coupling comprises a part a, adapted for mounting on the frame of a cooker for connection to the supply mains, and having a series of spring-loaded terminals b on which abut, through apertures a<3>, the ends of plug-pins j on a part h connected and secured to a heating element of the cooker.' An earthing pin d, in a square aperturea<2>, enters a socket k<1> in a square bush k and guides the parts of the coupling into engagement, whilst a spring clip g engages a fixed nut f so as to lock them in position. The terminals h have square heads which carry the mains connections e and slide in square slots a<4>, their spring-encircled shanks being guided in slots a<5>. The plug-pins j have square or hexagonal-section terminal bodies, and the block h is located on the heater element by square spigots h<2>. A cover a<1> forms one side of the slots a<4>.
Patent GB-574159-A (GB)
Title: Improvements in or relating to casings for electrical condensers or other electricalapparatus
IPC: H01G4/224
Filed: 1944-04-12
Abstract: 574,159. Condensers. SPORING, P. A., and TELEGRAPH CONDENSER CO.. Ltd. April 12, 1944, No. 6720. [Class 37] A casing for a condenser &c. comprises a tube 1, one or both ends being closed by a disc 4 which rests on an internal beading 5. The disc is secured in position by the spinning over of the edge of the tube. The beading is interrupted at one or more places so that it constitutes a number of arc-shaped portions. The internal surface of the disc is provided with projections 7 corresponding in number, size and location, and fitting into the interruptions in the beading to prevent rotation of the disc in the casing as when attaching to a baseplate by screwing nut 9.
Patent GB-1468100-A (GB)
Title: Contacts for electrical connectors
IPC: H01R4/24
Filed: 1975-02-18
Abstract: 1468100 Electric connectors THOMAS & BETTS CORP 18 Feb 1975 [19 Feb 1974] 6778/75 Heading H2E A connector comprises a metallic contact having a generally planar base portion from which extend parallel legs 26 with a conductor 38 receiving slot 28 between each two adjacent legs, each leg being skewed about a central axis B extending from the base and thus inclined to the plane of the base portion so that it is rotationally displaced about its said axis when engaged by a conductor in an associated slot. In the Fig. the solid lines slow the wavy contour of the legs prior to engagement with the conductors 38 having a transverse axis A inclined to the plane 48 of the base at a skew angle of between 5 and 15 degrees, and the broken lines show the contours of the legs rotatingly deflected by the engaged conductors 38. The legs may be planar (i.e. not wavy) and two parallel base portions may be connected by an integral bight to form a U-shaped connector with the slots of bases aligned. The legs may be tapered at the free ends, and be curved or stepped along their edges (Figs. 8 and 9, not shown), and provided with barbs (50, 56) for engaging two insulating mating housing members (52, 54, Figs. 4 and 5).
Patent GB-1074821-A (GB)
Title: Improvements in reciprocating engines
Inventor: BUNYAN THOMAS WALTER
IPC: F02B75/02
Filed: 1965-02-17
Abstract: 1,074,821. Reciprocating pumps; I. C. engines; steam engines. P. & O. RESEARCH & DEVELOPMENT CO. Ltd. Feb. 7, 1966 [Feb. 17, 1965], No. 6782/65. Headings F1A, F1B and F1M. [Also in Division F2] The wobbler mechanism of a steam or I. C. engine or a pump, having cylinder-piston units spaced around, and parallel to a crank-shaft (3) with an inclined crank-pin (9) Fig. 1 (not shown), comprises a bearing sleeve 12 rotatably mounted on the crank-pin 9, and rocker arms 26, one for each cylinder-piston unit, each connected at a radially outer end to a respective cylinder-piston unit and bearing at an inner end on the bearing sleeve 12, at least one rocker arm being secured to the sleeve, and at least one other rocker arm having limited angular freedom relative to the sleeve. As shown, arcuate pads 30 on splayed limbs 27, 28 of the rocker arms 26 are held in bearing engagement with the sleeve 12 by retaining rings 36, the pads being circumferentially spaced apart to allow relative movement between the rocker arms about the axis of the sleeve. A tube 42 engaging radial bores in the sleeve and one of the rocker arms secures that arm to the sleeve, flexible tubes 43 being used for the other rocker arms. With an odd number of rocker arms, only one is secured to the sleeve. With an even number, a diametrically opposed pair of rocker arms are secured to the sleeve. The bearing sleeve (12) comprises two split tubes (14, 15 and 16, 17) having their end flanges bolted together directly Fig. 4 (not shown) or to a central split ring (85) Fig. 10 (not shown). Each rocker arm is connected to a piston rod sliding between linear guides (7) either by a ball (57) on the arm engaging a socket ring (38) slidable transversely in a bore through the piston rod, or by spigot (56) on the rocker arm Figs. 7, 8 (not shown) slidable in a transverse bore (55) through a past-cylindrical bearing (52) rotatably housed in the piston rod. In a wobbler mechanism having six rocker arms Figs. 9-11 (not shown), two additional retaining rings (36a) engage the pads (30). Diametrically opposed rocker arms (75, 78) are secured to the bearing sleeve (12) by tubes (42), opposed arms (76, 79) are secured together by being bolted to lugs (82) on the retainer rings (36), and opposed arms (77, 80) are secured together by being bolted to lugs (84) on the retainer rings (36a), the pairs (76, 79) and (77, 80) remaining rotatable on the sleeve (12). Lubricant is fed to an annular channel 35 in the sleeve 12 either directly or through the hollow crank-shaft, and is distributed to the rocker arm / piston rod joints through the tubes 42, 43 and bores 40, 41.