baber/WOPTO huggingface dataset:
Patent GB-125385-A (GB)
Title: Improvements relating to Blow Torches.
IPC: F23D14/54
Filed: 1919-04-04
Abstract: 125,385. Safety First Torch Co., (Assignees of Gross A. R.). March 17, 1917, [Convention date]. Blowpipe burners.- In a blowpipe burner of the kind having i n t e r c h a n g e - able nozzles, the nozzle is screwed into a head 1 by means of a nut 4 and screwthreaded portion 4<a>. Vents If, 1<g>, and 1<h> in the head register with channels 4<o>, 4<g>, and 4h in the nozzle. Highpressure oxygen is supplied through vent 1<f> to a central passage 4<p>. Oxygen and acetylene are supplied through vents 1<g> and 1<h> respectively, and the mixture passes down the nozzle 4f through a plurality of passages 4i. The supply of the gases is controlled by valves in the usual manner, and the absence of an expansion chamber precludes any back-firing or burning of the nozzle. Different nozzles are used according to the requirements of the work.
Patent GB-1032419-A (GB)
Title: Contact wheels and method of making the same
IPC: B24B21/14
Filed: 1963-03-05
Abstract: 1,032,419. Grinding or polishing. W. J. COSMOS. March 5, 1963, No. 8706/63. Heading B3D. [Also in Division B5] A contact wheel, for supporting a coated abrasive belt or sleeve in a grinding or polishing machine, comprises a pair of rigid discs bonded to a layer of rubber or other elastic material interposed between them and a peripheral rubber or other elastic rim integral with the layer and bonded to the disc peripheries. Discs 11, Fig. 1, stamped from heavy gauge sheet metal have central apertures 12 and peripheral flanges 13. A layer of rubber 14 is bonded to the opposed faces of the discs and extends beyond them to form a rim 15 bonded to the flanges. The rim may be grooved. Hubs 38 may be separately bonded to the discs 11 or may be formed by some of the layer 14 flowing during moulding through holes in the discs. In a modification, Fig. 6 (not shown), the discs 61 are without flanges. In a modification, Fig. 5 (not shown), the rim has an outer portion 45b connected to an inner portion 45a by circumferentially spaced inclined webs 45c.
Patent GB-1416499-A (GB)
Title: Polyesters
IPC: G03C1/043
Filed: 1973-02-22
Abstract: 1416499 Sulphur - containing polyesters EASTMAN-KODAK CO 22 Feb 1973 [29 Feb 1972] 8739/73 Heading C3R [Also in Division G2] A linear sulphur-containing polyester is derived from (a) an aliphatic dicarboxylic acid, which may contain thio linkages, or an esterforming derivative thereof, (b) a thio-alkylene glycol and (c) either a diol containing an aryl group or a dicarboxylic acid containing an oxyphenyl-oxy group or an ester-forming derivative thereof. The examples describe polyesters prepared from the following compounds:-as reactant (a) succinic anhydride, diethyl succinate, glutanic anhydride or 3,3<SP>1</SP>-thiodipropionic acid; as reactant (b) thiodiethanol, 3,11-dithia-7- oxatridecan - 1,13 - diol or 3,6 - dithiaoctan- 1,8-diol; and as reactant (e) α,α<SP>1</SP>-bis-(2- hydroxyethylthio) - p - xylene, 1,4 - benzenedimethanol, 2,2<SP>1</SP>- (benzylimino) diethanol or diethyl-(p-phenylene-dioxy) diacetate.
Patent GB-369399-A (GB)
Title: Improvements in and relating to the furnaces of boilers and the like
IPC: F23H9/00
Filed: 1931-03-21
Abstract: 369,399. Furnace grates. NEIL, J. and NEIL, J. M., Temple Park Iron Works, Anniesland, Glasgow. March 21, 1931, No. 8760. [Class 51 (i).] Transverse rocking grate bars 24 for a boiler furnace are provided at each end with a pocket 25 of inverted U-shape in which operates a pivot pin 26 of circular section carried by the side bearer frame 27, the upper end of the pocket forming a semi-cylindrical bearing surface for the pivot pin. Arms 29 extending downwardly from each bar engage a reciprocating ladder 28 by which the bars are rocked. The bars may be in two sets operated separately. One or more stationary bars may be fitted at the front or rear of the rocking bar grate.
Patent GB-472604-A (GB)
Title: A device for automatically controlling the communication between two vessels
IPC: G05D16/18
Filed: 1936-03-24
Abstract: 472,604. Pipe couplings. LINDEN, E. VAN DER. March 24, 1936, No. 8790. Convention date, April 24, 1935. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 28, 1936.] [Class 99 (i)] [Also in Group XXIX] The Specification as open to inspection under Sect. 91 comprises the following coupling. A spring-loaded hemispherical ball valve 4 engaging a seat 5 in a socket A connected to a tank has an extension rod 7 which is engaged by a similar valve 14 in a plug B when the plug is pushed into the socket, whereby the two valves are lifted off their seats and a through passage for fluid is provided. The socket A has an annular opening to receive the end 8 of the plug B, packing 10 being compressed within the opening to provide a fluidtight joint. A locking-ring engaging grooves 16, 161 prevents separation of the members A, B. The valve springs 3, 13 and the rod 7 are guided by projections on the interior surfaces of the corresponding passages, the fiuid flowing in the grooves between the projections. This subjectmatter does not appear in the Specification as accepted.
Patent GB-901466-A (GB)
Title: Improvements in or relating to transistor bistable circuits
IPC: H03K3/286
Filed: 1959-03-13
Abstract: 901,466. Transistor bistable circuits. SIEMENS-SCHUCKERTWERKE A.G. March 13, 1959 [March 15, 1958], No. 8791/59. Class 40 [6). A bistable circuit of a type comprising two transistors having their collector and base electrodes cross-coupled has the input triggering voltage applied to the base electrode of one transistor through a rectifier of a type having a threshold voltage which must be exceeded if triggering of the circuit is to be effected. Transistors 1 and 2 have their base and collector electrodes cross-coupled and positive input pulses are applied through a diode 14 so that if the pulses are of sufficient amplitude transistor 1 is cut off and transistor 2 rendered conducting. The original condition may be restored by operating a contact 16. The diode 14 prevents the circuit being restored to its initial condition by negative pulses on the input line and also prevents operation of the circuit by positive pulses less than the threshold value of the diode. A diode 15 limits the positive voltage swing at the base of transistor 1 and a further diode 13 removes negative half-cycles of the incoming alternating current triggering wave.
Patent GB-673960-A (GB)
Title: A method and apparatus for the manufacture of welded trusses
IPC: B23K11/00
Filed: 1949-03-31
Abstract: 673,960. Making girders etc.; welding by pressure. KELLER, S. March 31, 1949 [April 15, 1948], No. 8814/49. Classes 83 (ii) and 83 (iv). In a method of making welded trusses, a plurality of metal web members each with a slit in both ends are mounted in zig-zag pattern on a carriage, T-section chord members are loosely connected with the webs by inserting the webs of the chord into the slits in the web members and the carriage is passed step-bystep through an automatic operating welding device to weld the webs to the chords. Two double spot-welding machines B, B<SP>1</SP> are arranged at the middle of a conveyer track consisting of an idle roller train C and a driven roller train D supported on brackets A. V- section webs 4 are loosely connected to chords 2, 3 and the whole press is secured to a U- section carriage 1 by means of clamps 5, Fig. 3, engaging the webs 4. The carriage 1 which is mounted on the idle train C in the loading position is transferred to the driven train D by means of transfer units on each bracket A which comprise two rockers 8, 8<SP>1</SP>, Fig. 5, pivoted eccentrically at 10, 10<SP>1</SP> to wheels 11, 11<SP>1</SP> and fitted between rollers 14, 15 which allow longitudinal but not horizontal movement. The rockers 8, 8<SP>1</SP> have a member 9 pivoted at their top ends, which carries supports 9<SP>1</SP> which when the wheels 11, 11<SP>1</SP> are rotated by the wheel 13 on a shaft 12<SP>1</SP>, are caused to engage the U carriage 1, lift it from rollers 6, 7 and transfer it to the adjacent roller train. The carriage 1 when on the driven train D is conveyed to the welding machines B, B<SP>1</SP> under the control of an automatic switching device E which also controls the welding operations. The machines B, B<SP>1</SP> effect four welds simultaneously at two pairs of diagonally opposite points. When welding is complete the carriage 1 is passed beyond the machines B, B<SP>1</SP> and the transfer units are operated to transfer it to the idle train C where it is unloaded. Two or more carriages may be used to maintain continuous operation so that when a carriage is being transferred from the idle train C to the driven train D in the direction p<SP>1</SP>, a carriage with a welded truss is transferred from the driven train D to the idle train C in the direction of the arrow p<SP>3</SP>. The loaded carriage may be conveyed through a guide during welding to maintain the chords correctly spaced. The webs may be of tubular or H- section stock.
Patent GB-1307311-A (GB)
Title: Interlaced yarn
IPC: D02G1/08
Filed: 1970-02-24
Abstract: 1307311 Interlaced yarn EI DU PONT DE NEMOURS & CO 24 Feb 1970 [24 Feb 1969 9 Dec 1969] 8941/70 Headings D1F and D1W A compact interlaced yarn suitable for warp in automatic shuttle looms without size or twist consists of continuous filaments interlaced in a coherent structure and characterised, when evaluated by the 'Automatic Pin Drop Counter' test described in the specification, by having a value for X' + O-' in centimetres of less than 0.17 <SP>B</SP>/N + 4 and a coefficient of variation O-' / X' of less than 0.039d + 0.33, where X' is the average of 100 APDC readings of a representative sample after backwinding, O-' is the standard deviation of the APDC readings, B is the breaking strength of the yarn in grams, N is the number of filaments and d is the denier per filament, the yarn having also a breaking strength of at least 4N and at least 50% of the filaments having strengths of at least 2 grams per denier. The yarn is produced by a process comprising feeding a group of at least 7 filaments under a tension between 0.1 and 0.4 grams per denier through the intersecting streams formed by jetting gas under a pressure of 60-100 pounds per square inch gauge through a pair of adjacent orifices, which orifices are arranged so that the streams are inclined towards each other and lie in a plane which is at an angle of 45‹ to 90‹, preferably 60‹ to 90‹ to the direction of yarn travel, a finish being applied to the filaments prior to passage through the intersecting streams to provide between 0.3 and 3% by weight of finish non-volatiles on the filaments, and the yarn being rapidly traversed from side to side so that the filaments are oscillated in the streams, the interlaced yarn being wound up. The rapid traversing motion may be imparted to the yarn by the traversing mechanism of the yarn wind-up or pneumatically as by employing pairs of jets in tandem. The filaments may be made of polyethylene terephthalate or polyhexamethalene adipamide. Several examples are given of suitable finish compositions and processing conditions.
Patent GB-179042-A (GB)
Title: Circuit making and breaking devices
IPC: H01H29/18
Filed: 1921-03-23
Abstract: 179,042. Schattner, E. March 23, 1921. Addition to 169,510. Electromagnetic interrupters; mercury switches contacts. - In a circuit making and breaking device as described in the parent Specification, the pin f is arranged to dip vertically in the mercury, thereby ensuring a more definite point of current rupture by minimizing any clinging of the mercury around the pin due to surface tension &c. The pin may be moulded into the ebonite container a and secured firmly in position by being twisted and flattened at an intermediate point f or, as shown in Fig. 2, may be given a swan-neck formation for the same purpose.
Patent GB-1368026-A (GB)
Title: Sealing assembly
IPC: E04B1/684
Filed: 1972-02-28
Abstract: 1368026 Expansion joints K HAMMERSCHMIDT 28 Feb 1972 [10 March 1971] 9066/72 Heading E1B An expansion joint assembly between prefabricated concrete wall panels 1 and 2 comprises an aluminium, stainless steel or hard P.V.C. box section member 6 or 7 embedded in each member with a wedge shaped aperture defined by flanges 8, U-section bar 9 engaged in each box member and wedge shaped edge strips 11 of a resilient seal 12 engaged in each U-section bar. Flanges 14 which form an acute angle with the strips 14 before installation form an additional seal. Flanges may extend backwards from the base of the U-section bars 8 to engage the inside face of the box section and provide an additional seal.
Patent GB-1492674-A (GB)
Title: Carton
IPC: B65D5/66
Filed: 1975-03-05
Abstract: 1492674 Cartons G RUUD 5 March 1975 [6 March 1974] 9113/75 Heading B8P To facilitate storing of empty cartons the sides of the body and lid have outwardly sloping walls so that when open the empty cartons will nest one within another. The carton may be of cardboard or plastics material. The side walls 4 are joined by gusset panels 5 which are glued in place. The lid has similar sides 6 and gussets 7. A tab 10 and slots 9 enable the lid to be locked to the carton, and a tap 8 on the lid abuts the base 1 of the carton thereby supporting the free edge of the lid. Flanges 11, 12 on the carton and lid can be sealed together by means of a polyethylene coating on the material.
Patent GB-1388535-A (GB)
Title: Electrical solid-state devices
IPC: H01L23/29
Filed: 1973-02-24
Abstract: 1388535 Semi-conductor devices PLESSEY CO Ltd 23 Nov 1973 [24 Feb 1973] 9195/73 Heading H1K In a method of etching at least one channel in a layer 2 of film material on a semi-conductor substrate 1, the layer is covered by a photoresist layer 3 in which a channel is formed; an etchant for the film material is introduced into the channel and etching allowed to proceed until a desired amount of overhang by the resist is achieved, Fig. 4; a further layer of film material is deposited over the device, forming a portion 13 within the etched out region of the layer 2, and on the photo-resist layer, Fig. 11; the resist layer is removed leaving two channels each between the portion 13 and one of the sidewalls 11, 12 of the layer 2, each channel width being determined by the amount of overhang of the resist layer. The layer 2 may be of insulating or metallic material; in the latter case the sidewalls 11, 12 may be anodized. The width of the channels may be as little as ¢ of a micron.
Patent GB-1154136-A (GB)
Title: Light Metal Piston.
IPC: F02F3/04
Filed: 1968-02-27
Abstract: 1,154,136. Pistons. MAHLE K.G. 27 Feb., 1968 [22 April, 1967], No. 9418/68. Heading F2T. In a light metal piston comprising a head 1 and a skirt 5 having expansion-regulating inserts of steel or other material having a lower coefficient of expansion than that of the light metal embedded in the skirt adjacent the gudgeon pin bosses 6 and extending peripherally therefrom with their inner sides exposed, the head is separated from the skirt in the thrust areas by inserts 9 which are not welded to the light metal. The inserts 9 may be of steel.
Patent GB-623133-A (GB)
Title: Improvements in limb prostheses
IPC: A61F2/60
Filed: 1947-04-10
Abstract: 623,133. Artificial limbs. LARSSON, T. W., and DAHLBACK, S. H. April 10, 1947, No. 9543. [Class 81(ii)] A limb prosthesis having two pivotallyconnected parts is characterized in that one part is provided with an arc-shaped friction bar which passes through a slit in one arm of a bell crank lever pivoted on the second part, so that the joint may be locked in an arbitrary angular position, the other arm of the bell crank lever being actuated by means of a rod or the like in the longitudinal direction of said second part. As applied to an artificial leg, a thigh member 1 is provided with an arcuate metal bar 7 which passes through a slit in an arm 11 of a bell crank lever pivoted on a leg member 4. Bearing on the other arm 12 of the bell crank lever is a rod 15 connected by means of an adjustable sleeve 16 to a rod 18 divided into four branches which bear, through cushions 19, on a foot member 6. Pressure on the foot member displaces the rods 15, 18 longitudinally against springs 14 and 17 and causes the arm 11 to bear against the arcuate bar 7 and lock the members 1 and 4 in position. In a modification, Fig. 3, an oval rubber ring 31 between the leg member 4 and the foot member 6 prevents relative rotation of these two members.
Patent GB-129408-A (GB)
Title: An Improved Stud, or Cog, for Horse Shoes, or Mule Shoes, to Prevent Slipping.
Inventor: FILKIN CHARLES BLYTH
IPC: A01L7/04
Filed: 1918-06-11
Abstract: 129,408. Filkin, C. B. June 11, 1918. Renewable calks.-Roughing-studs of T-section are made with the wings b, c integral with a solid shank a adapted to be screwed or driven into the shoe. A strengthening-collar may be fcrmed at the junction of the. wings and shank.
Patent GB-1426686-A (GB)
Title: Carpet sweepers
IPC: A47C7/02
Filed: 1974-03-04
Abstract: 1426686 Carpet sweepers PRESTIGE GROUP Ltd 4 Dec 1974 [4 March 1974]  9607/74 Heading A4F In a carpet sweeper having a casing, and a manually rotatable sweeper brush, electrically operated dust collecting means are provided at one or more points adjacent the periphery of the casing which are energized by a battery carried by the sweeper. The rear wheels 4 of the illustrated sweeper drive a rotary brush 2 Fig. 2 (not shown) which sweeps dirt into dust pans (7). The electrically operated dust collecting means comprise impellers 13 located at each of the front corners of the machine and each rotatable by an electric motor 17 to draw dust through a duct 14 into a dust pan (7). An annular brush 21 surrounds each duct inlet. The motors 17 are energized via two switches 19 by a battery within the sweeper casing 1, either motor being energized when required, e.g. for removing dust from a corner. Alternative embodiments have a single impeller 32 Fig. 3 (not shown) or two impellers for drawing dust through a duct (31) or two ducts extending across the front and/or rear of the sweeper casing. Impellers may be provided additionally or alternatively for drawing dust through ducts at the sides of the casing. In all the above embodiments the impellers may deliver the dust to small disposable dust bags instead of to the dust pans. In a further embodiment the electrically operated dust collecting means includes a rotary brush which may be provided in addition to a suction means.
Patent GB-459469-A (GB)
Title: Improvements in or relating to vacuum tight seals for electron discharge devices
IPC: H01J5/40
Filed: 1936-04-01
Abstract: 459,469. Discharge apparatus. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.-(Assignees of Knowles, D. D. ; 219, Castlegate Road, Wilkinsburg, Pennsylvania, U.S.A.) April 1, 1936, No. 9620. Convention date, April 24, 1935. [Class 39 (i)] [See also Group XI] In an electron-discharge device provided with a metal casing or envelope 10 which forms the anode. the cathode 11 is in the form of an edgewise wound helix which may be enclosed by a grid 30. The cathode leading-in wires 12, 13, and the lead 31 tc the grid are sealed within vitreous material 33 which is located between insulating discs 34, 35 in a re-entrant tubular portion 32 of the envelope 10.
Patent GB-232255-A (GB)
Title: Improvements in apparatus for exhibiting stereoscopic images
IPC: G03B35/00
Filed: 1925-04-14
Abstract: 232,255. Bourdeaux, B. V. C. April 14, 1924, [Convention date]. Stereoscopic apparatus; stereoscopic kinematography; optical-projection apparatus. - Stereoscopically related images are exhibited in alternation by an apparatus comprising image-holders A, A<1> carried by slide-blocks which are adjustable on arms C, C<1> and are provided with set screws S, the arms being secured to a rotatable shaft V which also carries screens L L<1>, l l<1>, to limit the period during which each image is visable. The shaft V is rotated at a minimum rate of 600 revolutions per minute, the images being adjusted so that they are alternately visible to an observer along the line S, l. The images may be on opaque or projected bases and may be viewed through a lens or projected. A rotary diaphragm is provided which serves in conjunction with the screens to unmask the images at the precise moment they assume the position P, P'. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also a process for stereoscopic kinematography in which photographs are taken simultaneously on two films, the images on the positive film are printed alternately from each negative film, and the positive film is projected by an ordinary projector at the usual speed. This subject-matter does not appear in the Specification as accepted.
Patent GB-703433-A (GB)
Title: Improvements in valves and valve assemblies
IPC: F16K27/04
Filed: 1951-04-25
Abstract: 703,433. Valve casings. DAWKINS, B. W. April 7, 1952 [April 25, 1951], No. 9705/51. Class 135 In a gate valve in which the closure member moves across the passage formed by the inlet and outlet conduits 4 in order to shut off the flow, across to the valve seatings 5 is obtained through a further passage 10 of which the axis coincides with the axis of the valve seatings and which is closed at one or both ends by rcmovable plugs 11. Three modified constructions are described.
Patent GB-408447-A (GB)
Title: Improvements in or relating to roofs and roofing slabs
IPC: E04B7/20
Filed: 1933-03-31
Abstract: 408,447. Roofs; slabs. CRUYSSE, J. V., 6, Gistelschesteenweg, St. Andries, near Bruges, Belgium. March 31, 1933, No. 9706. [Classes 20 (iv) and 87 (i).] A roof comprises pumice-stone concrete slabs C extending directly between the roof purlins F and supported thereon at their abutting edges, su h slabs being provided on their upper surfaces with hollowed portions which are covered with a finishing layer, such as asbestos sheets, slates, tiles &c. The reinforcement H of the slabs may project at the ends for securing the slabs to the purlins, as shown in Figs. 1 and 2, or the purlins, when of concrete, are ribbed as shown at P, Fig. 4, for engaging rabbeted portions at the ends of the slabs. A filling K is provided in the joints. The slabs shown in Fig. 1 are adapted to receive a covering of asbestos sheets E which are screwed to the slabs, and the slabs shown in Fig. 2 are provided with integral laths B for supporting a covering of tiles or slates.
Patent GB-1249385-A (GB)
Title: Photographic exposure control apparatus
IPC: G03B7/16
Filed: 1969-02-24
Abstract: 1,249,385. Shutter control arrangements. HATTORI TOKEITEN K.K. Feb. 24, 1969 [Feb. 28, 1968(2)], No. 9712/69. Heading G2A. The shutter mechanism described in Specification 1, 249, 386 is controlled depending upon the brightness of the subject to be photographed as detected by photo-resistor 56. The exposure termination member 39 in the embodiment shown has two pairs of teeth 44, 144, and the electromagnet 50 is energized to hold member 39 in one of three positions by the closure of one of the switches S 1 , S 2 , S 3  actuated in turn by the increasing movement of shutter release member 1. The intermediate position of member 39 is indicated by lever 153 being held against marks 156, 157, 158 of a scale 155. Mark 156 indicates that the closure of S 1  has rendered transistor T 2  conducting so as to energize the electromagnet 50 this resulting from the illumination of 56 being such that flash operation is necessary. Mark 157 indicates that the closure of S 2  has energized the electromagnet and indicates that although the illumination sensed is sufficient for a daylight exposure the required exposure measured by the RC timing circuit 56, 57 is sufficiently long that camera vibration is liable to result, this mark is thus provided as a warning. Mark 158 indicates that the closure of S 3  has energized the electromagnet and normal daylight exposure is possible under the control of the RC timing circuit. At the instant of shutter release switch S 40  opens to commence the timing action.