baber/WOPTO huggingface dataset:
Patent GB-703562-A (GB)
Title: Apparatus for making welded seams in thermoplastic material
Inventor: ELLACOTT HERBERT GEORGE
IPC: B29C65/18
Filed: 1951-04-14
Abstract: 703,562. Seaming non-metallic sheet material. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 12, 1952 [April 14, 1951], No. 8738/51. Class 42 (1) Apparatus for making welded seams in overlapped films of thermoplastic material comprises an endless flexible band 5, of a material which will not adhere to the film, which is power driven in a path which will carrv it into contact with the film over a sufficient length to move the apparatus over the overlapped films after the fashion of an endless-track vehicle, and a roller 29, provided with means for heating it to welding temperature, resting on that part of the band which comes in contact with the film under adequate pressure to make a welded joint in the film, the length of band in contact with the film behind the roller being such that under operating conditions the film will have cooled sufficiently to solidify before the band leaves it. As shown, the endless band 5, which may be of poly-tetrafluoro-ethylene or thin phosphor-bronze, is guided by flanged track rollers 3, 4 and is driven by feed rollers 9, 11 geared to a motor 15, Fig. 1. Roller 11 and a tension roller 13 are spring-pressed against the band, the pressure of roller 11 being adjustable by a control lever 22. The heated roller 29 rotates on a fixed spindle 28 carried by a pivoted fork 27, and can be lifted off the band by means of a cam 34 rotatable by a hand lever 37. The periphery of roller 29 has as many ribs as weld lines to be produced (two ribs 30, 31 are shown, Fig. 2) and the roller is heated internally by radiation from an electric heating element. A blower 42 driven by motor 15 discharges a jet of cooling air through a tube 43 onto the band in front of the rear track roller 4. The overlapped edges of the layers 6 of film to be seamed are raised above the level of the bench or the like, on which the films are spread, by a support 8, Fig. 2, to which the films will not adhere, e.g. of linoleum.
Patent GB-762215-A (GB)
Title: Improved method for the preparation of semen diluents and diluents so produced
IPC: A61K35/52
Filed: 1954-03-25
Abstract: A solid which forms with water a homogenous colloidal solution suitable as a diluent for bovine semen used in artificial insemination is made by drying a mixture of liquid egg yolk and a saccharide of less than three molecules of simple sugars, e.g. dextrose.  The proportion of saccharide to egg yolk solids may be 1-5:10.  The mixture may contain an antibiotic, e.g. dihydrostereptomycin sulphate, and a sulfa compound, e.g. sulphanilamide.  The drying is preferably freeze-drying, and the dried product is preferably comminuted finely in a dry atmosphere. A buffer, e.g. sodium bicarbonate, may be incorporated in the dry mixture.  A product of less than 2 per cent of moisture is preferred.
Patent GB-873402-A (GB)
Title: An improved ferrite pot core
IPC: H01F17/04
Filed: 1960-03-14
Abstract: 873,402. Inductors. POPOVIC, D. March 14, 1960, No. 8834/60. Class 38 (2). A variable inductance comprises a ferrite pot core including a movable central stem 14 separated from the base 12 of the core by variable air gap 24. A plate 20 of non-magnetic material, e.g. synthetic resin, nylon or metal, is superimposed on top of the core and has an internally threaded bore 19 into which is screwed a non- magnetic threaded stud 17 cemented to stem 14. The assembly is placed between clamping and mounting plates 21, 22 held together by bolts 23 or by suitable cement. By rotating stud 17 air gap 24 is varied and the inductance of a coil wound in space 15 is changed. The device may be potted in resin after adjustment of the inductance.
Patent GB-559068-A (GB)
Title: Improvements in the colouring of vitreous fibres or of fabrics produced therefrom
IPC: C03C25/475
Filed: 1942-06-29
Abstract: 559,068. Treating textiles. MAXWELL, E. C., MAXWELL, U. C., and BARKER, G. June 29, 1942, No. 8891. [Class 15 (ii)] [Also in Group VIII] Vitreous fibres and fabrics produced therefrom are coated, e.g. for camouflage purposes, with an aluminium colour lake. Alumina may first be deposited on the fibres by treating them with an aqueous solution of aluminium formate or acetate, drying and heating to convert the aluminium salt into alumina and then treating with an aqueous solution of the dyestuff. Alternatively, the fibres may be treated with an aqueous solution containing the aluminium salt.and the dyestuff, squeezed and dried or the aluminium colour lake may be applied by a padding process. In an example, a glass fabric is wetted with a cold aqueous solution of aluminium formate, squeezed, dried for 20 minutes at 160‹C., immersed for 10 minutes in an aqueous solution at 50‹C. of Solway green GS and dried.
Patent GB-1221191-A (GB)
Title: Electrical heating device for fluent materials
IPC: F24H1/10
Filed: 1968-02-23
Abstract: 1,221,191. Dispersing liquids under gaseous pressure. COLGATE -PALMOLIVE CO. Feb.23, 1968 [March 1, 1967], No.8972/68. Heading F1R. [Also in Division H5] An induction heater, of the type comprising a transformer 30, Fig.1, having a tubular short circuited secondary winding 35 through which material to be heated is passed, is held in a cap 20 mounted on an aerosol type pressurized container 10. Winding 35 has an inlet 37, receiving fluent material such as shaving cream from the valve stem 16 of the container 10, and the outlet 38 extends through an opening 24 of cap 20 and is protected by a shield 25. Delivery of heated product is accomplished by depressing push button 75 of a switch 73 providing current for the transformer 30, additional pressure moving the transformer bodily downwards within cap 20, whereby the inlet 37 of winding 35 forces open the valve of container 10 and product under pressure is released through valve stem 16, the transformer 30 being resiliently mounted by legs 4, 5. Alternatively, the transformer 330, Fig.5 is vertically reciprocable on a foam rubber ring 61 on actuation of a push button 65, a separate push button 75 actuating the switch 73. The transformer 330 may alternatively carry a discharge block 80, Fig. 7 mating with the valve stem 16 of container 10. The winding 35 co-operates with channels 81, 82, of block 80 which has a discharge spout 83, and the device is operated by downward pressure on block 80.
Patent GB-472640-A (GB)
Title: Welding process and apparatus
IPC: B23K5/06
Filed: 1936-03-26
Abstract: 472,640. Uniting by fusion. LINDE AIR PRODUCTS CO. March 26, 1936, No. 18974. Convention date, April 23, 1935. [Class 83 (iv)] In a process of welding a seam, a number of high-temperature oxy-fuel gas flames are arranged to deposit a number of superposed layers of weld metal in a single pass of the gas flames along the seam. In joining thick plates P, P<1>, Fig. 3, the edges of the plates are cutaway to form either a V- or U-shaped groove, a small groove may also be provided opposite the main groove, Fig. 5, and this may be filled with weld metal Y as a preliminary to the main welding operation, or, where only one groove is provided, a small deposit of weld metal X, Fig. 3, may be made at the bottom of the groove and extending throughout the length of the plates. The latter are guided, during the main welding operation, along rollers 39, Fig. 1, and passed first beneath a heating unit E and then beneath a welding unit C comprising a blowpipe 22, supported for horizontal and vertical adjustment, and a welding rod guide 30 carrying a weld rod 24 fed either mechanically or by gravity. A similar welding unit D is provided having a larger welding rod 36, and finally a blowpipe G may be provided for normalizing the weld. An electric motor M is adapted to reciprocate a rod 27 adjustable connections from which to the blowpipes oscillate the latter across the welding groove. An insulating sheet 37 shields the blowpipe mounting means from exposure to the flames.
Patent GB-1240960-A (GB)
Title: Film changing device
IPC: B65H3/00
Filed: 1970-02-25
Abstract: 1,240,960. Film changing devices. OPTISCHE INDUSTRIE DE OUDE DELFT N.V. Feb.25, 1970 [March 1969], No.9120/70. Heading G2A. A film changing device for a photographic camera using individual film sheets comprises pinching means 35 positioned near the discharge side of a supply magazine 5 for pressing together two opposed edges of the top sheet 8 of a stack in the magazine, so as to curve the forward edge of the uppermost sheet away from the rest of the stack, and a carriage 6 for removing said top sheet. The carriage is provided with a clip member 7 for clamping the curved forward edge so as to pull the top sheet out of the magazine when the carriage is moved in the discharge direction (to the left as seen). After exposure, the exposed sheet is returned to a take-up magazine (9) Fig. 1 (not shown) positioned on top of the supply magazine 5. The movements of the carriage 6, of a film pressure plate 29 and of the pinching means 35 are controlled by an electric motor 12. The speed of rotation of a shaft 14 is transmitted in a ratio of 3:1 to a shaft 15, the shaft 14 controlling the reciprocating motion of the carriage 6, while the shaft 15, by virtue of cams 23, 31, causes the plate 29 to reciprocate up and down and the pinching means 35 to act. Sequence of events The pinchers are each provided with noses 36 which in turn carry knife edges so that, when the pinchers are actuated, the top sheet is urged to the position shown. The carriage 6 is moved backwards (as seen), and the front edge of the sheet is received in a slot (38) Fig. 3 (not shown) of the clip 7 where it is held by a lever 40 as the carriage 6 is moved forwards (as seen). The sheet is brought into position between an exposure window (4) and the plate 29, now in its lowest position, and the lever 40 is released from the sheet. The released sheet is lifted towards the window (4) by the rising plate. While exposure is taking place, the carriage 6 makes one idle movement towards the magazine 5 and back, by which time the exposed sheet is only supported by levers 46, (55) Fig. 4 (not shown). Then a lever 49 engages the forward edge of the sheet and pushes it towards the take-up magazine. The carriage 6 makes another reciprocating movement, during which the pinchers are actuated to prepare the next sheet in the supply magazine.
Patent GB-574347-A (GB)
Title: Propulsion means for an aircraft
IPC: B64D39/00
Filed: 1944-05-12
Abstract: 574,347. Propelling aircraft. ARM STRONG WHITWORTH AIRCRAFT, Ltd. SIR W. G., and LLOYD, J. May 12, 1944, No 9171. [Class 4] An aircraft propelling system comprises a pusher airscrew arranged in parallel with a reaction jet supplied from an internal-combustion turbine plant. In the arrangement illustrated, a combustion turbine unit 13 is mounted within the wing and disposed transversely of the machine, the exhaust being discharged through a duct 19 terminating in an opening 20, and contra-rotating airscrews 28 are driven by the turbine through spur reduction gearing 22, 23, balanced bevel gearing 24, shaft 25, and further spur reduction gearing at the end of the shaft 25. A tractor airscrew may be fitted on a forwardlyextending extension of the shaft 25. Boundary layer air is supplied to the turbine compressor through slots 15 in the upper and lower wing surfaces. Alternatively, or in addition, air may be supplied through openings at the leading edges of the wings.
Patent GB-308317-A (GB)
Title: Improvements in or relating to acoustic devices
IPC: H04R1/24
Filed: 1929-03-21
Abstract: 308,317. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Ringel, A. S.). March 21, 1928, [Convention date]. Loud - speakers; magnetic instruments ; diaphragms.-An acoustic device, such as a loud-speaker, comprises a plurality of conical diaphragms arranged one within the other and having maximum responses at different frequencies or over different frequency ranges, the .diaphragms being mounted with a cylindrical or conical baffle member, the whole arrangement being such that a substantially constant response is obtained over a wide frequency range and vibrations emanating from the rear are intercepted. The figure shows a loud-speaker employing two frustum-shaped diaphragms 21, 22 arranged one within the other on cylindrical baffles 19, 20 carried by the magnet structure 25. The diaphragms are actuated by coils 27, 28 located in the annular air gaps 32, 33. It is stated that the diaphragm 21 has maximum responses at low and high frequencies whilst the diaphragm 23 has a maximum response at an intermediate frequency. The inner end of the diaphragm 22 carries a flexible centring disc 23 provided with spirally cut holes and fastened to the central magnet pole 29 by means of a screw or rivet 24. The outer cylinder 19 is mounted in a plate 3 which supports the entire cone system and may constitute the front wall of a cabinet which houses in addition a radio receiver or a phonograph employing electrical reproducing means. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the provision of openings in the cylinders 19, 20. This subjectmatter does not appear in the Specification as accepted.
Patent GB-182196-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64D35/06
Filed: 1921-03-24
Abstract: 182,196. Ramsay, D. M. March 24, 1921. Clutches. friction; gearing for stopping and starting machinery. -An aircraft has a forward driving propeller 21 which is keyed to a sleeve 19 carrying a clutch member 19, and a retarding propeller 23 which is keyed to a sleeve 22 carrying a clutch member 17. A clutch member 14 has conical surfaces 15, 16 for engagement with the members 17, 18 by axial movements on the driving shaft 12 to which it is keyed. The clutches may be controlled by fluid pressure from a sector-shaped valve 29, which admits steam &c. to either side of a piston 25. The clutch may be normally held in its inoperative position by springs 35, 36.
Patent GB-1044542-A (GB)
Title: Improvements in or relating to textile weigh-feed mechanisms
Inventor: WHITELEY GWYN
IPC: G01G13/00
Filed: 1963-03-08
Abstract: 1,044,542. Fluid-pressure servomotor systems. CLIFFE & CO Ltd. June 8, 1964 [March 8, 1963], No.9210/63. Heading G3P. [Also in Division G1] The subject matter of this Specification is identical with that described in Specification 1, 044, 541 but the claims are directed to a textile weigh feed mechanism of the kind in which textile material is weighed in a pan and dropped from the pan on to a conveyer and in which some of the moving parts of the mechanism are pneumatically operated.
Patent GB-141339-A (GB)
Title: Improvements in protective apparatus for multiphase alternatingcurrent circuits
IPC: H02H7/26
Filed: 1920-03-30
Abstract: 141,339. Metropolitan-Vickers Electrical Co., (Assignees of Ricketts, F. E.). April 4, 1919, [Convention date]. Protective arrangements. - Relates to the protection of parallel feeder polyphase distribution systems, and consists of an arrangement for disconnecting faulty feeders in case of a short circuit or ground accompanied by a reversal of energy flow. The Figure shows the invention applied to a, pair of three-phaee feeders 1, 2 running from generator bus-bars 3 to distributing bus-bars 6, through circuit-breakers 7 provided with trip coils 10 and batteries 11 for exerting the trip coils. According to the invention, the trip coil of each circuit-breaker at the distributing end will be excited when any one of three overload relays 12 and the corresponding reverse power relay 21 are simultaneously closed, or when a relay 14 responsive to an earth fault is closed simultaneously with any one of the three reverse power relays 21. The circuit breakers at the generating ends of the feeders are controlled by overload relays and a relay responsive to ea.rth faults, as shown.
Patent GB-558476-A (GB)
Title: An improved ball and socket joint
IPC: F16C11/04
Filed: 1942-07-03
Abstract: 558,476. Ball and socket joints. PRENTICE, E. E. July 3, 1942, No. 9251. Convention date, June 10, 1941. [Class 65 (ii)] A ball and socket joint between a rod 10 and a rocking lever 11 comprises a socket 14 with a rubber &c. bush 17 in which is mounted with a sliding fit a spherical member 21 bored to receive a pin 22 on the lever 11, with or without a wearing bush 23. The member 21 moves freely in 17 without distorting the latter, and the pin 22 rocks freely in 21.
Patent GB-728063-A (GB)
Title: Improvements in motor road vehicles for transporting animals
IPC: B60P3/04
Filed: 1952-04-10
Abstract: 728,063. Animal-carrying vehicles. NOWELL, J. G. July 10, 1953 [April 10, 1952], No. 9276/52. Class 108 (1). An animal-carrying vehicle has a rear compartment 14 closed by a three-quarter partition 25 hinged to a post 26, a side compartment 15 closed by a similar partition 21 hinged to the post 23 and a further side compartment 16 closed by a partition 22 hinged to the post 24 and by a ramp 2 hinged to the vehicle body at 3 and forming a side wall of the vehicle. The upper edges of the side walls are provided with windows 7, 11 and a further window 11 is provided over the windscreen.
Patent GB-1132363-A (GB)
Title: Production of cyclododecene
Inventor: MUELLER HERBERT
IPC: C07C5/05
Filed: 1966-03-03
Abstract: 1,132,363. Cyclododecene. BADISCHE ANILIN & SODA FABRIK A.G. 3 March, 1966 [4 March, 1965], No. 9279/66. Heading C5E. Cyclododecene is produced by hydrogenating cyclododecatriene - (1,5,9) in the presence of a cobalt or nickel hydrogenation catalyst and a thiophene. The catalyst may contain an activating addition of copper, iron, manganese and/or chromium, and may be used in a finely divided form, e.g. Raney nickel, or supported on an inert carrier, e.g. diatomaceous earth, Al 2 O 3 , silica gel, pumice or active carbon. The reaction is preferably conducted in the absence of solvent, but if the use of a solvent is desired the following solvents are suitable: benzene, cyclohexane, octane, ethyl acetate, diamyl ether and tetrahydrofuran. Recovery of the product is conventional.
Patent GB-1531049-A (GB)
Title: Preparation of 21-halosteroids
IPC: C07J41/00
Filed: 1976-11-02
Abstract: 1531049 Preparation of 21-halo-steroids UPJOHN CO 2 Nov 1976 [17 Nov 1975] 09336/78 Divided out of 1531047 Heading C2U Steroids of the formula wherein either R 3  is ketonic oxygen and there is a #<SP>4</SP>-double bond present or R 3  is #-OH and there is a #<SP>5</SP>-double bond present; R 6  is H, F or CH 3 ; R 9  is H, F, Cl, Br or OH; R 11  is hydrogen, α- or #-OH or ketonic oxygen; a #<SP>9(11)</SP>-double bond is optional when R 11  is H but is absent when R 11  is OH or O; a #<SP>1</SP>-double bond is optional; R 16  is H or α- or #-CH 3 ; and Y is Cl, Br or I are prepared by reacting steroids of the formula wherein Z is -OR 20 , -SR 120  or -N(R 120 ) 2  where M 20  is C 1-5  alkyl, phenyl, (C 1-4  alkyl)- phenyl or C 7-12  aralkyl and R 120  is C 1-5  alkyl, with chlorine, bromine or iodine in an organic solvent containing at least one mole, per mole of starting steroid, of an amine base, and subjecting the product to acid hydrolysis. The products may be converted to corticoids of the formula wherein R 21  is H, C 2-6  alkanoyl or C 7-12  aroyl or aralkanoyl by reaction with a compound which can generate an anion R 21 O<SP>(-)</SP>. Specifications 1,531,048 and 1,531,050 are referred to.
Patent GB-743211-A (GB)
Title: Improvements in or relating to automatic firearms
IPC: F41C7/11
Filed: 1953-04-07
Abstract: 743,211. Automatic firearms. FABRIQUE' NATIONALE .D'ARMES DE GUERRE. April 7, 1953 [April 7, 1952], No. 9353/53. Class 119 Relates to automatic firearms of the kind comprising a fixed barrel 1, a breech casing 2 secured to the barrel, a reciprocating slide 3 for driving, locking and unlocking a breech bolt 5, and an underguard 6 containing the trigger mechanism and a returning device in the form of a helical spring 4 in a butt 7 rigid with the underguard, the latter being located beneath the breech casing with respect to which it can be lowered by a pivotal movement. According to the invention the lowering of the underguard, upon release of a locking member 12, permits the removal of the slide, the bolt, and the cover 8 of the breech casing, and the hinge joint between the breech casing and underguard comprises a central hinge plate 15, Fig. 5, on the breech casing and two side plates 17 on the underguard. Further, a lever 11 actuated by the slide and co-operating with the trigger mechanism is mounted on the hinge pin and is located between the plate 15 and one of the plates 17. In the construction shown, the slide 3 is driven rearwards, on firing, by a gas piston 41 and, by means of a rod 29 pivoted to it at 31, compresses the return spring 4. During such movement the firing hammer 51 is cocked and is held cocked by the lever 11; upon the return movement a shoulder on the slide rocks the lever 11 and, assuming the trigger 62 is still pressed, thereby releases the hammer. The locking member 12 hooks on to a lug 13 in the breech casing and is slid to the rear, for unlocking, by a member 100 which is moved by rotation of a pivoted member 14. When the butt is swung downwards, Fig. 2, the cover 8, which is of sheet metal with flanges 38 engaging grooves in the breech casing, may be withdrawn to the rear.
Patent GB-782456-A (GB)
Title: Improvements in and relating to the production of artificial filaments, threads, fibres, bands and the like
Inventor: REEDER FRANK
IPC: D01F4/00
Filed: 1955-03-31
Abstract: In the manufacture of artificial threads and like products by extruding a protein solution into a setting medium and hardening the products, the protein is esterified before or after extrusion and the esterified protein is treated with ammonia to convert at least a part of the esterified carboxyl groups into amide groups; the amidation may be effected before or after extrusion and in one form of the process, esterification is effected before extrusion and amidation after extrusion.  Esterification may be effected with methanol in the presence of sulphuric acid or with dimethyl sulphate or ethylene oxide.  Amidation may be effected with anhydrous or alcoholic ammonia or with aqueous ammonia solution preferably containing ammonium salts as buffers.  When esterification and amidation follow extrusion, the extruded products are preferably first hardened in a formaldehyde-salt bath and may then be esterified as described in Specification 690,492. After amidation the products may be further hardened in a bath containing formaldehyde, sulphuric acid and one or more metal salts; alternatively or in addition, they may be insolubilized by treatment in a cyanate bath, as described in Specification 701,645.  Examples are given.
Patent GB-1055844-A (GB)
Title: Chain-conveyor
IPC: B61B10/02
Filed: 1965-03-05
Abstract: 1,055,844. Conveyer system. M. V. HJORTH. March 5, 1965 [March 9, 1964], No. 9381/65. Heading B7L. A chain conveyer comprises upper and lower rectangular or circular cross-section rails 1 and 4 welded together as at 3, and having longitudinal slits 2 and 5, Fig. 2 (not shown), extending along their upper and lower parts respectively. The chain which runs in rail 1 comprises rollers 7 with vertical axes jointed by link plates 12 and 13 to pairs of rollers 6, having a horizontal axis, which support a dragging member 24. Vertical arms 9 placed on the axles of the wheels 6 support a longitudinal axle 22 on which the vertically extending dragging member hinges. A load carrying trolley which runs in rail 4 comprises a link 28 supported on rollers 29, and arms 31, 32-carry supporting rollers 35 and forks 33, 34 in which rotate rollers 36 with vertical axes. Projecting bolts 37 retain a carrying portion 38 from which depends a hook 39 and which is surrounded by a shield 40 constructed for removable engagement with a cut-away part of the dragging member. Rollers 41 fixed to the link 38 contact the lateral edges of the rail slit fence guiding the trolley. Sensing rollers 26 and 27, Fig. 2 (not shown), placed in apertures in the dragging member 24, co-operate with cam-shaped guide members (not shown) placed on the side of the rails to force to dragging member out of contact with the carrier at carrier stopping stations.