baber/WOPTO huggingface dataset:
Patent GB-528332-A (GB)
Title: Improvements in or relating to lightning arresters
IPC: H01T1/16
Filed: 1939-05-04
Abstract: 528,332. Lightning arresters. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. May 4, 1939, No. 13313. Convention date, May 6, 1938. [Class 38 (iv)] A lightning arrester comprising a number of short arc discharge paths in series is made up of superimposed plates of good conducting material having high contact resistance between them. In Fig. 2, brass plates have a dusting of finely divided carborundum on their upper surfaces. In Fig. 3, the pile is made up of thin carbon discs (the good d conducting material) and there is a high contact resistance between disc and disc. The edges of the discs may be bevelled to avoid flashover and the whole cylindrical periphery of the pile may be coated with insulating paint or waterglass. The high contact resistance may be increased by preforming the discs, by dusting loose carbon or silicon carbide on the surface or by coating the surface with shellac and firing the discs. The discs may be separated from one another by very thin paper. Brass discs may alternate with the carbon discs. The elements may consist of a brass disc coated on both sides with carbon. The arrester may alternatively be made up (in the manner of Fig. 2) with loose irregular but flatsided pieces of carbon instead of discs. In the constructions described each element has a low breakdown voltage which is very little larger than the minimum voltage necessary to maintain the discharge. According to the Specification as open to inspection under Sect. 91 a spiral of paper is coiled round a central carbon electrode and afterwards fired, a metal cylinder constituting the outer electrode. This subject-matter does not appear in the Specification as accepted.
Patent GB-1470323-A (GB)
Title: Vegetable based remoistenable adhesive for pregummed tape
IPC: C09J7/32
Filed: 1974-03-26
Abstract: 1470323 Remoistenable adhesive compositions A E STANLEY MFG CO 26 March 1974 [26 March 1973] 13324/74 Heading C3U A remoistenable adhesive composition suitable for use in the preparation of pregummed substrates comprises a reduced viscosity acrylamide derivative of waxy maize, waxy milo, tapioca, potato starch or of a starch having a high amylopectin level; an animal glue or polyvinyl alcohol and a plasticizer; and water such that the weight ratio of acid hydrolysed starch derivative to animal glue is 9 : 1 to 1 : 9, and the Werle Tack Test for a reinforced pregummed tape coated with the adhesive composition re-moistened with 17 pounds of water per three thousand square feet of tape is at least 100 gms. after 2À6-6 seconds. The starch derivative is preferably an acid-hydrolysed acylamide graft copolymer. The plasticizer may be sodium nitrate, a calcium chloride-sodium nitrate combination, urea, glycerin, corn syrup, sorbitol, sodium methacrylate or a mixture of two or more thereof.
Patent GB-612735-A (GB)
Title: Methods of sandblasting and apparatus therefor
IPC: B24C7/00
Filed: 1946-05-02
Abstract: Liquid used with a wet sand-blast apparatus contains a rust inhibitor consisting of one part of potassium dichromate and one to five parts of trisodium phosphate, the drier the day, the more of the latter.
Patent GB-385510-A (GB)
Title: A new system of automatic signaller for level crossings
IPC: B61L29/26
Filed: 1932-05-10
Abstract: 385,510. Railway signals. PIZZI, D., 5, Avenue de Paris, La Ferte Jouavre, Seine et Marne, France. May 10, 1932, No. 13409. [Class 105.] A train approaching a level crossing actuates audible or visual signals such as mechanical sound horns, flags, arrows, discs, &c. by each wheel actuating a normally vertical pivoted lever which may be a centrally pivoted lever or an upper lever 3, the hub of which is formed with a lug 14 to butt on a pin 8 on a lower lever 3<1> which is thus only actuated for one direction of train travel to operate the signal by a connection to rod 13. With the centrally pivoted lever the signal device is actuated by a flexible connection from the lower end displacing a spring-biased rod so that also with this construction the signal will not be operated by a train leaving the level crossing. Contact levers are fitted to each rail to prevent failure of the signal in case of one being damaged. Both sides of the level crossing are provided with the contact levers.
Patent GB-623852-A (GB)
Title: Improvements in or relating to spectacle frames
IPC: G02C7/08
Filed: 1947-05-19
Abstract: 623,852. Spectacle frames. KOCHMANN, Ltd., M., and KOCHMANN, M. May 19,1947, No. 13429. [Class 97 (i)] A spectacle frame in which the lenses are pivoted so as to swing out of the line of vision when required, comprises a frame part A having bars 1 carrying nose pads 3, hinged side arms 4 and a bridge 2 to which is hinged the frame B having rims 5 carrying the lenses. The channelled hinge 8 has sufficient friction to maintain the frame B in any position of adjustment.
Patent GB-631723-A (GB)
Title: Self service refrigerated display case
IPC: A47F3/04
Filed: 1947-02-24
Abstract: 631,723. Refrigerated showcases. HILL & CO., Inc., C.V. Feb. 24, 1947, No. 13436/49. Convention date, Oct. 20, 1941. Divided out of 631,681. [Class 29]. An open-topped refrigerated self-service display case with a compartment 10 for the goods supported on a perforated shelf 14 has an air circulation passage 84 with an inlet 88 located at or below the level of the walls, and a fan 90 which draws air from the compartment downwardly over refrigerating coils 70 in the passage and returns it to the space beneath the shelf. The front of the case is closed by a glass plate 12. In a modification a fan is arranged in the air circulating passage of a display case of the kind described in Specification 631,681.
Patent GB-623854-A (GB)
Title: Improvements in powder metallurgy
IPC: B22F3/14
Filed: 1947-05-19
Abstract: 623,854. Powder metallurgy. HARDY, Inc., C. May 19, 1947, No. 13447. Convention date, March 4, 1942. [Class 83 (iv)] A compact of non-ferrous metal powder is sintered by compressing it between electrodes with a pressure of the order of seven tons per square inch and passing through it a current of the order of 2,000,000 amperes per square inch for a time not exceeding <SP>1</SP>/ 10 th second. The compact about “ inch diameter and # to # inch thick is compressed between electrodes at a pressure of from 5-10 tons per square inch and a current of up to 2,000,000 amperes per square inch is passed through it for <SP>1</SP>/ 60 th to <SP>1</SP>/ 30 th second. The compact 19 is arranged in a die 16 between electrodes 11A, 12A, which are in turn, between but insulated from pressure pistons 11 and 12. The bore of the die is lined with a layer 18 of overlapping metal plates coated with a non-conductive lubricant or leafing agent such as stearic acid which also serves to hold the flakes flat against the die wall. Metal, plastic or glass may be used for the die itself. Between the electrodes and the compact are conductive layers of graphite. Current is supplied from the secondary 23A of a step-down transformer.
Patent GB-651541-A (GB)
Title: Improvements in reflex road studs or markers
IPC: E01F9/06
Filed: 1948-05-18
Abstract: 651,541. Bolt-hole bushes. ABELSON, L. A. TRIER, K., and ENGLISH GLASS CO., Ltd. May 18,1948, No. 13479. [Class 89(i)] '[Also in Group XVIII] An anchor for a road traffic stud, (see Group XVIII), which is adapted to be fixed in the road surface comprises a screw threaded portion D having wings J with right angle extensions at their feet. The portion D has a polygonal head which engages a corresponding recess in the head of the road traffic stud to prevent relative rotation.
Patent GB-134881-A (GB)
IPC: A22B1/00
Abstract: 134,881. Spencer, W. Oct. 15, 1918. Chain stops and holders.-A device for preventing the passage of a chain in one direction, has a fixed base 5 on which is a tubular channel 6 through which the chain 4 passes. A pawl 1, fixed to a shaft b journaled in the base, allows the chain to pass to the right, but jams it against passage to the left. Normally, the pawl is kept in action by the weight of a handle 3 pivoted to an arm c fixed to the shaft b. A hook f on the handle c, or a stop e on a weight 2 pivoted on the shaft b, is used to free the pawl when required.
Patent GB-479992-A (GB)
Title: Improvements in or relating to typographical composing machines
IPC: B41B7/04
Filed: 1937-05-13
Abstract: 479,992. Type-making machines. ELLIOTT, R. C., and MONOTYPE CORPORATION. Ltd. May 13, 1937, No. 13502. [Class 100 (iii)] Single-type composing and casting machines.-In machines of the kind described in Specifications 8633/99 and 8982/01, [both in Class 100], means are provided for facilitating the quadding or filling-out of short lines at either end, or for centralizing such lines. A. special signal in the recordstrip is employed for producing repeated casts of blank type, and the strip-feeding mechanism is locked out of action until the required number of such casts is completed. The locking-device for effecting the casting of blank type at the end of the text of a line, as printed, i.e. at the beginning of the line in order of casting, comprises an arm A, Fig. 1, attached to an extension 16b of the holding-pawl 16 of the strip-feed mechanism, so as to be oscillated thereby. In the path of the arm A is a rotatable stop in the form of a notched disc A<1>, which can be rotated stepwise by a ratchet-wheel A<2>, Fig. 2, and a pawl A<3>, which is pivoted to a plate A<4>, rocked by the main operating-lever 6. A special signal in the record-strip causes the piston of an aircylinder All to raise a lever A<6> and bring the pawl A<3> into engagement with the ratchetwheel. The disc A<1> is thereby rotated, so as to bring a solid part thereof into the path of the arm A and arrest the feed of the strip. When the'next notch in the disc comes opposite to the arm A, the feed is resumed. The number of repeat casts can be varied by means of a second notched disc A<13>, Fig. 3c, which is adjustably secured to the disc A<1>. The number of casts necessary is obtained from the measured length of the character part of the line, as shown' on the line-scale of the perforating-machine, and the disc A<13> is adjusted accordingly. For placing blank type in front of the character type, i.e. for left-hand quadding, there is employed a second locking- device comprising an arm B, which oscillates with the feed-pawl 17 of the record-strip. When a special signal is presented, a latch B<1> is raised by the piston of an air-cylinder B<3>, so as to lock the arm B and arrest the feed of the strip until the line has reached full measure. The leading type of the line then acts through a line-support to rock an adjustable stop, which opens a valve and admits air to a cylinder B<4>. The latch B<1> is thereby rocked, so as to release the arm B, and the strip-feed is restored. Several adjustable stops may be provided, for stopping repeat-action at any point in the line. The two special signals, which initiate the repeat-casting, each consist of two components, which do not form a signal in the normal running of the machine. These signals act on a system of three valves, whereby the air-streams are diverted from their normal stations, and operate the pistons of the cylinders A<11>, B<3> respectively. The special signals also determine the positioning of a blank matrix over the mould. Specification 100,815, [Class 100 (iii)], also is referred to.
Patent GB-135027-A (GB)
IPC: A47B29/00
Abstract: 135,027. Balaam, W. C. Jan. 4, 1919. Work companions.-A stand consists of vertical bars a connected by a pair, or pairs, of cross-bars b pivoted at the centre so that the stand can be collapsed. A bag or receptacle c for needlework &c. is suspended below the upper bars b, as shown; or the vertical bars a may be prolonged so that the bag can be suspended above the upper cross-bars.
Patent GB-1213972-A (GB)
Title: A corner junction for a rectangular glazing frame or panel receiving frame
Inventor: CLAYTON DEREK SIDNEY
IPC: E06B3/964
Filed: 1966-08-17
Abstract: 1,213,972. Frame corner joints. HEREL VEST INVESTMENTS Ltd. 16 Nov., 1967 [17 Aug., 1966], No. 13503/70. Divided out of 1,213,971. Heading E1J. The four bars of a closed frame are secured together at their adjacent ends by corner members 13, Figs. 2 and 3 corresponding in external dimensions to the bars and having a groove 33 and a slot 17 with an undercut portion corresponding to the undercut portion 16 Fig. 1 with tongues 15 projecting from the ends 14a of the undercut portions of slot 17a, these tongues 15 being tightly fitted and secured in the undercut portions 16 as e.g. by adhesives and/or by conical pointed grub screws in the bores 21, Fig. 2. Small grooves 36 Fig. 1 in groove 33 hold sealing or adhesive compound. In the stile bars grooves 22 interlock and hold sealing strips.
Patent GB-135503-A (GB)
IPC: A24F5/06
Abstract: 135,503. Campbell, P. F. Nov. 20, 1918, [Convention date]. Tobacco pipes.-A lining 3, which may be split, or in one piece, is secured within the bowl 1 by pins 16 engaging with L-shaped bayonet slots, and is formed with parallel slots 4 extending above the bottom and spacing ribs 15. A flax 12 is formed at the bottom of the bowl in a plane containing a line from the end of the stem to the flat to enable the pipe to rest on a table with the bowl nearly upright. The outer end of the mouthpiece 2 is formed with a cross channel 8 and an axial bore closed by a plug 11.
Patent GB-109666-A (GB)
Title: Improvements in Means for Repairing Pneumatic Tyres.
Inventor: MEAD FREDERICK WILLIAM
IPC: B29C73/10
Filed: 1917-03-22
Abstract: 109,666. Mead, F. W. March 22, 1917. Punctures, apparatus for closing.-A repairing Punctures, apparatus for closing.-A repairing device for air-tubes consists of a fabric strip A to which a small rubber patch B is solutioned. a reinforcing piece of fabric C being secured on the back of the strip A opposite the patch B. The device is intended to be wrapped around the airtube D, the patch B and the overlapping ends of the strip being solutioned. Markings, such as 2¢, 3, 3¢ shown, may be placed on the strip to indicate the amount of overlap (requiring to be solutioned) on the corresponding size of air-tube.
Patent GB-311099-A (GB)
Title: Improvements in or relating to mixing machines
IPC: A21C1/14
Filed: 1928-05-10
Abstract: 311,099. White, A. E., (Hobart Manufacturing Co.). May 10, 1928. Stationary mixers with stirrers having complex motions.-A mixing machine comprises a bowl 13, standard 11, and a beater 30 to which a planetary movement is imparted by motor 21, rotary head 22 with extension 23, and shaft 25. The beater comprises a main portion 30 which is curved outwardly and downwardly as shown at 31, terminates in an upwardly-directed part 40 cranked out of plane with the part 31, as shown in Fig. 2. The beater also terminates at its upper part in a part 46 which is cranked, as shown, in a direction opposite to that of the part 40 and which tends to force downwardly the material being mixed. An anti-creeping member 34 in the form of the frustum of a cone is provided at the upper part of the beater and shrouds the shaft 25, the angle of the cone being such as to prevent creeping. The beater may be articulated to its shaft by a bayonet-slot connection.
Patent GB-232435-A (GB)
Title: A new or improved pit-cage arrester or safety device
IPC: B66B5/24
Filed: 1924-06-06
Abstract: 232,435. Field, V. A. June 6, 1924. Catch gear of minecage type. - In safety devices of the kind in which guide gripping devices mounted at each comer frame member of a skeleton like cage, which surrounds the pit cage and is normally suspended therefrom, are actuated when relative movement of the cages occurs on breakage of the hoisting rope, each gripping device comprises a channel guide 3 and a long brake block 7. A series of levers 6 pivoted to the outer cage 2 are pivoted to each block 7 and attached by a pin-and-slot connection to the pit' cage 1. The face of each block 7 may be toothed, notched, serrated or roughened. The relative movement of the cages may be assisted by springs.
Patent GB-894387-A (GB)
Title: Improvements in and relating to the production of hyaluronic acid
IPC: C12P19/26
Filed: 1960-04-21
Abstract: Hyaluronic acid is produced by growing a hyoluronic-acid-producing streptococcus in an aqueous medium free from hyaluronidase-sensitive polysaccharide material and consisting essentially of casein hydrolysate and chemically defined nutrients, continuing the incubation at least to a point of maximum hyaluronic acid production, thereafter terminating the incubation and recovering the hyaluronic acid from the broth.  The preferred medium is casein hydrolysate, inorganic salts yielding sodium, potassium magnesium, phosphate and sulphate ions, calcium -d-panthothenate, pyridoxine, riboflavin and glucose.  In a preferred embodiment Streptococcus pyogenes is incubated at 37 DEG  C. for 18 hours on the preferred medium, heated to boiling point, rapidly cooled and formalin then added.  The crude broth is then treated with acetone, the lower layer is diluted with water and stirred with acetic acid and potassium acetate, and is precipitated by pouring into ethyl alcohol.  It is purified by dialysis and freeze drying.  Specification 676,564 is referred to.
Patent GB-1419923-A (GB)
Title: Agent for inhibiting vegetative plant growth
IPC: A01N57/20
Filed: 1974-03-29
Abstract: 1419923 Aminomethanephosphonic acid BAYER AG 29 March 1974 [30 March 1973] 14020/74 Heading C2P [Also in Division Cl] Aminomethanephosphonic acid is prepared by reacting aqueous ammonia solution with chloromethanephosphonic acid at a temperature of 150 C. under a pressure of 20 atm. An example is given.
Patent GB-1179873-A (GB)
Title: Improvements relating to Data Transmission Systems
Inventor: LAKHANI AZIZUDDIN HASHIM ISMAI
IPC: H04L1/18
Filed: 1967-03-28
Abstract: 1,179,873. Telegraphy. PLESSEY CO. Ltd. 22 March, 1968 [28 March, 1967], No. 14075/67. Heading H4P. In apparatus as described in Specification 1,024,662 comprising a local and a remote transmitter/receiver terminal, in which telegraphic information is read from a tape and transmitted to produce a corresponding remote tape record; an error-correcting system is utilized in which the exclusive supervisory channel is eliminated and data is transmitted simultaneously and contemporaneously in both forward and reverse channel directions; an error correction cycle being provided in one forward channel by initiating an error correction cycle in the other reverse channel as a supervisory signal requesting retransmission. The receiver of each channel includes means for detecting error in data received over one channel and for responding thereto by inhibition of data readout and initiation of error signal transmission from its associated transmitter over the other channel thus initiating the inhibition of data read-out at both terminals for a predetermined period for completion of an error correction cycle. At each terminal the transmitter includes a tape reader for the transmitted data and the receiver includes a tape writer for the received data, the error detection means operating to inhibit for a period of 2N data characters the tape writer of the terminal at which error is detected, for backstepping the tape reader for N characters, and for transmitting an error signal to the other terminal; the tape writer and tape reader at such other terminal being similarly inhibited and backstepped respectively. Subsequently to each backstep, the tape reader of each terminal is operated forwardly to read an appropriate character when the tape writer becomes uninhibited, so as to produce a clean copy at each terminal. Supervisory signals immediately following the error signals may be transmitted during an error correction cycle to indicate that the writer at the transmitting terminal has run out of tape. Instructions from a transmitter to a remote receiver may be sent by initiating an error cycle and interleaving control codes, and the system output is applicable to magnetic tape, on line computer, or direct printout; while input may be derived from a magnetic tape reader, on line computer, keyboard or card reader.
Patent GB-495792-A (GB)
Title: Improvements in and relating to driving gear for lifts and elevators
IPC: B66D1/12
Filed: 1937-05-20
Abstract: 495,792. Winding-apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., and POLLOCK, A. A. May 20, 1937, No. 14078. [Class 78 (v)] In driving - gear for lifts the rope sheave 6 and brake drum are mounted on a shaft 5 between bearings 3, 4, and the rotor of the driving motor 2 is mounted on an overhanging portion of the shaft, or on a separate shaft coupled to the shaft 2 outside the bearings.
Patent GB-1302562-A (GB)
IPC: B62D55/21
Filed: 1970-03-24
Abstract: 1302562 Endless tracks CHICAGO RAWHIDE MFG CO 24 March 1970 [24 April 1969] 14090/70 Heading B7H [Also in Division F2] A track pin assembly of a track-laying vehicle includes pins 12 and links 30, each link having one end press-fitted on a bushing 18 on one pin 12 and another end rotatable on a surface 16 of an adjacent pin 12, a sealing ring 50 being supported in a groove of the link 30 for engagement with an end face 22 of the corresponding bushing 18. The ring 50 is of resilient material, e.g. rubber, reinforced by a metal insert 68.
Patent GB-397263-A (GB)
Title: An improved insulating compound particularly for use in connection with electric cables
IPC: H01B3/28
Filed: 1932-05-19
Abstract: A compound rubber for electric cable insulation which contains mineral rubber and/or vulcanized bitumen has its dark colour suppressed by the addition of coloured pigments or dyes such as crimson antimony sulphide or ultramarine.  In an example a rubber compound contains 10 per cent mineral rubber, 10 per cent crimson antimony sulphide and 2 per cent of a non-bleeding red dye.  The invention serves as a means of identifying the polarity of different strands of a multicore cable.
Patent GB-879439-A (GB)
Title: Organosilicon compounds
Inventor: ANDERSON ROBERT CRAIG
IPC: C07F7/08
Filed: 1959-04-27
Abstract: Methylpolysiloxanes are produced from tetramethylsilane by reacting it with sulphuric acid and hydrolysing the product with water.  At least 1 mol, preferably 4-20 mol of sulphuric acid are used per mol of tetramethylsilane.  The reaction temperature is below 120 DEG C. to produce hexamethyldisiloxane and in the range 120 DEG -200 DEG C. to produce higher polysiloxanes.  The tetramethylsilane and sulphuric acid may be heated together in a vessel equipped for distillation, or the mixture may be passed down a heated packed column.  Removal of two or three methyl groups may be carried out in one operation or, after the removal of the first methyl group, the hexamethyldisiloxane produced may be further reacted with sulphuric acid followed by hydrolysis to give methylpolsiloxanes.  In Example 1 tetramethylsilane and sulphuric acid are reacted at 20 DEG C., the reaction mixture is diluted with water and extracted with ether: the ether is removed by distillation to give hexamethyldisiloxane.  In Examples 2-6 varying proportions of tetramethylsilane and sulphuric acid are reacted at 125 DEG -130 DEG C. to give dimethylpolysiloxanes.  The products of Examples 5 and 6 were equilibrated in the presence of a little aqueous potassium hydroxide. In Example 7 the mixture of tetramethylsilane and sulphuric acid is passed down a column packed with porcelain rings and heated at 125 DEG C.; further sulphuric acid is passed down the column and the combined sulphuric acid solution is hydrolysed.  In Example 8 the column is heated at 130 DEG C.; the product is equilibrated to give a rubbery elastomer.  In Examples 9 and 10 the column is heated at 80 DEG C. and the products are hexamethyldisiloxane containing a little hexamethylcyclotrisiloxane.