baber/WOPTO huggingface dataset:
Patent GB-182667-A (GB)
Title: Improvements in the luffing gear of cranes
IPC: B66C23/10
Filed: 1921-06-16
Abstract: 182,667. Fairweather, W. C., (Naamlooze Vennootschap Geb. Stork et Cie's Fabriek van Hijschwerktuigen). June 16, 1921. jib cranes.-Relates to luffing-gear of the kind in which in order to obtain substantially horizontal traverse of the load the head sheave 14 is moved relatively to the jib, its position being controlled by a head rope 13 secured to a point on the fixed framework of the crane. To ensure horizontal travel over the whole range of luffing, the head rope 13 is arranged to swing about two different points, such as 20, 26 on the frame in different ranges of movement of the jib, the rope being virtually shortened in the lower positions. As shown in Fig. 1, the head rope 13 is secured to a balanced lever 16 pivoted at 20, and the movement of the lever is limited by a stop 21 or by a slotted link 23. In another arrangement, Fig. 4, the head-rope passes over a fixed pin or roller 25 and is secured to a fixed point 20. The head-sheave 14 is guided in curved slots in the jib. The jib itself is balanced by a counterweight 11 through links 10, 9.
Patent GB-894710-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J75/00
Filed: 1959-05-14
Abstract: The invention comprises 4-methyl-17a -(a -methallyl) - 17b  - hydroxy - 4 - androsten - 3 - one, 4 - methyl - 17a  - methylethinyl - 17b  - hydroxy - 4 - androsten - 3 - one, a 4, 17a  - dialkyl - 17b  - hydroxy - 4 - androsten - 3 - one 17b  acylate, and the corresponding androstane, wherein 4-alkyl is an alkyl radical containing 1-4 carbon atoms, 17a -alkyl is an alkyl radical containing 1-6 carbon atoms and the 17b -acylate is the acyl radical of a hydrocarbon carboxylic acid containing 1-12 carbon atoms, 4b -methyl-17b -hydroxyandrostan - 3 - one, 4b  - methyl 17b  - hydroxy - androstane - 3 - one 17b  - propionate, and 4b , 17a  - dimethyl - 17b  - hydroxy - androstan - 3 - one, and processes for the preparation of compounds of the formulae <FORM:0894710/IV (b)/1> wherein R2 is hydrogen or the acyl radical of a hydrocarbon carboxylic acid containing 1-12 carbon atoms, R4 is hydrogen or a lower aliphatic hydrocarbon radical containing 1-6 carbon atoms and alkyl is a lower alkyl radical containing 1-4 carbon atoms and the corresponding 4,5-dihydro compounds by (a) reacting a compound having the formula <FORM:0894710/IV (b)/2> wherein R4 is as above defined and n and n1 are 1 and 2 with an alkylating agent to produce the corresponding 4-alkyl 3-enamine, (b) hydrolysing the said 4-alkyl 3-enamine to produce the corresponding 4-alkyl-4-androstene, (c), if desired acylating the latter with an acylating agent to obtain the corresponding 4-alkyl-4-androstene-17b -acylate and (d) optionally hydrogenating the latter in the presence of a catalyst to obtain a 4b -alkyl androstane.  The 4b -alkyl androstane may be epimermised to a 4a -alkyl androstane by means of a mineral acid or a base. Compositions having anabolic, androgenic, progestational, tumour inhibiting and central nervous regulating activity, incorporate the above compounds for oral subcutaneous administration in tablets, powders, capsules, pills, solutions, emulsions, suspensions or elixirs.  Specifications 740,568, 853,850 and 855,300 are referred to.
Patent GB-362918-A (GB)
Title: Fittings for securing to one another the parts of wooden boxes or packing cases, forconnecting members of wooden structures to one another and for securing bottom boards to the wooden underframes of motor vehicles
IPC: B62D29/02
Filed: 1930-05-29
Abstract: 362,918. Securing parts of wooden structures together. RAWLINGS, A. D., 46, Westmoreland Road, and GORNALL, W. H., 8, Merthyr Terrace, both in Barnes, London. May 29, 1930, Nos. 16636 and 23146. [Class 108 (i).] Parts of wooden structures such as the wooden under frames of motor vehicles are secured together by means of a screw which can rotate but cannot move endwise engaging a nut or equivalent which can move endwise but cannot rotate. In the case of the bottom boards of the wooden underframes of motor vehicles the fittings consist of a metal bracket 34 with a threaded hole, and a screw 6 of which the head is flush with the top of the board and held against endwise movement by engagement of a metal plate 32 with a circumferential groove 31 around the head of the screw.
Patent GB-349778-A (GB)
Title: Improvements in rotary pumps
IPC: F04C2/32
Filed: 1930-05-29
Abstract: 349,778. Rotary pumps. WEBER, H., Spiez, Switzerland. May 29, 1930, No. 16644. Convention date, June 18, 1929. [Class 110 (ii).] Movable-abutment type.-A rotary pump comprises a piston sleeve 8 supported on a driving eccentric 7 and having fixed thereto an abutment vane 9 which is formed with a cylindrical bearing portion 19 to engage two shoes 20 which slide in a guide housing 10 formed in the cylindrical casing 1. The reciprocating movement in the guide housing 10 is used to pump lubricant which is delivered through ducts 23 in the abutment vane 9 to the shoes 20 and other required points. Rollers 22 may be fitted in the shoes 20 on their plane sides, Fig. 3. Valves 15, 18 are fitted in the suction and discharge passages 13, 16 of the pump.
Patent GB-497285-A (GB)
Title: Improvements in or relating to containers primarily intended to contain powder
IPC: B65D47/20
Filed: 1937-06-15
Abstract: 497,285. Powder distributers; stoppers. BARLOW, R., and JACKSON, J. M. June 15, 1937, No. 16669. [Classes 18 and 125 (iii)] A container, primarily intended for powder, comprises a body part 1 and a lid 3, one or both of which is or are resilient so that, on pressure being applied, a valve 14 opens, and the contents are expelled. The outer end of the valve closes normally, the outlet from the container, but when the latter is disposed as shown, the valve drops by gravity and the contents can flow through the space between the stem of the valve and the sides of the outlet. This space is provided by making the valve stem round and the outlet square or vice versa. A closure cap containing a resilient or compressible sealing disc can be screwed on to the cup-like member 7 in which the outlet is formed, or the cap may simply slide on in which case, the member 7 is provided with vertical ribs. The container is made of metal or rubber and is of oval, triangular, circular, &c. shape, and either the body or the lid may be domed or they may be concave and convex respectively.
Patent GB-741759-A (GB)
Title: An improved frame structure for use in the formation of a stand, table, cabinet or the like
IPC: A47B3/12
Filed: 1953-06-17
Abstract: 741,759. Furniture frames; cabinets. BARNETT, J. A. June 15, 1954 [June 17, 1953], No. 16674/53. Classes 52(1) and 52(2). Metal legs a are connected by tenon joints to upper and lower sets of stiles b, the legs and stiles having grooves a<SP>1</SP>, b<SP>2</SP> to receive the edges of panels. Inwardly projecting lugs b<SP>4</SP> may be provided on the stiles to support top and bottom members.
Patent GB-1073395-A (GB)
Title: Carburettor
Inventor: HIGHLEY WENFORD EARL
IPC: F02M1/10
Filed: 1965-04-21
Abstract: 1,073,395. Spray carburetters. ACF INDUSTRIES Inc. April 21, 1965, No. 16689/65. Heading F1B. In an automatic choke mechanism comprising a choke valve closed by a bi-metallic coil 147 and urged open by a suction actuated piston 160, the suction port 163 is closed by piston 160 when the latter is in an intermediate position corresponding to a partially open choke valve. Further opening of the choke valve is controlled solely by the coil 147 which is carried by a stud 133 of an insulated cover 127, Fig. 1 (not shown) of a chamber 113 fixed to a mounting plate 107 on the side of the carburetter. The coil 147 is heated by an electric coil 141 seated in a ceramic block 135, the heater being switched on when the ignition circuit is closed. The choke spindle 27 passes loosely through a bore 127 in the wall of chamber 113; a filter 121 around the spindle 27 filter atmospheric air entering chamber 113 through the bore 127. The float bowl 33 is clamped in position by a nut 37 and the fuel nozzle comprises an adjustable needle 70 which also serves to conduct fuel to the idle fuel passages 75...77.
Patent GB-654627-A (GB)
Title: Improvements in constant speed automatic reverse tensionless dye jigs
IPC: D06B3/32
Filed: 1946-08-03
Abstract: 654,627. Counting-apparatus. SMITH & CO. (WHITWORTH), Ltd., F., LEACH, F., and SUTCLIFFE, I. W. Aug. 3, 1946, No. 16736. [Class 106 (i)] [Also in Group XVI] A counting-apparatus for controlling the number of to-and-fro operations of a fabric as it is moved backwards and forwards through a dye bath is constructed with a ratchet wheel l on a shaft H, and operation of the ratchet is effected by a pawl l<SP>1</SP> on an arm L connected by a rod L<SP>2</SP> to a disc L<SP>1</SP> which is alternately moved for a partial revolution in clockwise and counterclockwise directions by a friction clutch m operated from a differential gear A<SP>2</SP> which is reversed to change the direction of movement of the fabric. A pointer h on the shaft H is set to a number on a fixed graduated dial h<SP>1</SP>, and when this returns to zero a cam is operated to switch off the machine after a number of to-and-fro operations corresponding to the setting of the pointer to h.
Patent GB-350224-A (GB)
Title: Improvements in and connected with conveyors
IPC: A21B3/07
Filed: 1930-05-30
Abstract: 350,224. Endless belt conveyers. KING, H. O., Lynfield Court Road, Eltham, London. May 30, 1930, No. 16817. [Class 78 (i).] Spaced bars A of arcuate form adapted to form lateral guides for the articles, e.g. biscuits, conveyed, are supported by a frame B in contact with the upper rim of a belt conveyer C. The distance apart of the bars A may be adjusted. The articles are inserted edgewise between the bars at the end A<1> and are delivered on their side on to a belt M which is driven at a higher speed than the belt C.
Patent GB-123939-A (GB)
Title: Improvements in Electric Controllers.
Inventor: JAMES REGINALD WILLIAM
IPC: H01H19/56
Filed: 1918-10-15
Abstract: 123,939. James, R. W., (Stanley, R. W.). Oct. 15, 1918. Controllers, drum.-The resistance coils 19 surround a cylinder 17 within and rotatable with the constant-carrying drum 18, the leads a, a<1> from the resistance passing through the cylinder along its interior, and through slots 20, 21 in the cylinder and drum to the contact segments 18<a>, 18<b> - -. The stationary contacts are in the form of spring plungers 25 mounted in separately adjustable bushings 24 on a cover-plate 22, the plate, bushings, and contacts 25 being removable as a whole. Each contact 25 is connected to its external lead 30 by an attached flexible blade 28 rigidly carried by the terminal bolt 29. The drum and cylinder are held on the actuatingshaft 14 by end cheeks 15, 16, the casing having end plates 11, 12. The controller may be used in a system using two dynamo-electric machines as described in Specification 18138/15.
Patent GB-787068-A (GB)
Title: Improvements in pneumatic tyres
IPC: B60C1/00
Filed: 1956-05-31
Abstract: The air-retaining liner of a tubeless tyre is composed of a vulcanized mixture of 50-70 per cent by weight of polyisobutylene, having a molecular weight of at least 80,000 (but usually not exceeding 400,000) with correspondingly 50-30 per cent of either natural rubber or butadiene-styrene copolymer.  A typical mix comprises 60 parts of polyisobutylene with 40 parts natural rubber and 45 parts carbon black, together with the usual compounding ingredients of zinc oxide, stearic acid, sulphur, mineral oil, benzothiazyl disulphide and tetramethylthiuram monosulphide.  If GR-S rubber is substituted for natural rubber in such a mix, zinc laurate is added.  The mixture is sheeted out to provide the liner stock which is built into the tyre to adhere to the natural or GR-S rubber coating of the innermost carcase ply, the tyre then being vulcanized with the liner in situ.
Patent GB-1392302-A (GB)
Title: Liquefaction of hydrogen or helium
IPC: F25J1/00
Filed: 1971-05-25
Abstract: 1392302 Liquefying hydrogen and helium BRITISH OXYGEN CO Ltd 23 May 1972 [25 May 1971] 16957/71 Heading F4P In a liquefaction process for hydrogen or helium in which a compressed feed stream is heat exchanged with expanded portions of the feed stream in heat exchanges 14, 16, 18, 20, 22 and then expanded through a Joule-Thompson valve 28 into a collector vessel 30, the expanded vapour therefrom, which provides the cooling for the heat exchanger 22, is passed over one end 34 of a heat pipe 32 whose other end 36 is connected to a point in the system at which the temperature is below the inversion temperature of the gas being liquefied, the heat pipe 32 containing a fluid which freezes above the boiling point of the expanded vapour. For helium liquefaction the fluid is preferably hydrogen and for hydrogen, neon. Expansion of the feed stream portions takes place in turbines 24, 26. Good heat contact between the vapour and the ends of the heat pipe is ensured by baffles, coils or heat exchangers. On starting up the process the heat pipe will transfer heat from end 34 to end 36 to provide a sufficiently cool stream through h.e. 22 so that the gas passing through J.-T. valve 28 is below its inversion temperature. As cooling progresses the vapour from vessel 30 will eventually freeze the fluid in the end 34 of the heat pipe and reduce the loss of heat from that end.
Patent GB-693473-A (GB)
Title: Improvements in or relating to circuits for changing the value of a direct voltage
IPC: H02M3/13
Filed: 1951-07-18
Abstract: 693,473. Converting; condenser arrangements. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 18, 1951 [July 21, 1950], No. 17037/51. Classes 38 (ii) and 38 (iv). An arrangement for changing the value of a direct voltage comprises at least two circuits which include a common capacitor 6 and each of which comprises a gas-filled discharge valve 3 or 10 and an inductor 5 or 9, the direct voltage 1 to be changed being supplied to the non-common part of one circuit and the changed direct voltage being taken from the terminals of the terminals of the common capacitor, characterized in that the changed direct voltage is derived from the terminals of the common capacitor otherwise than through a rectifier, the gas-filled discharge valves being controlled with variable relative phase in such a manner that the polarity of the average direct voltage across the common capacitor can be varied from a maximum positive to a maximum negative value. If the valves 3 and 10 are alternately ignited the common capacitor 6 will acquire a potential by the well-known " building-up " action. If now valve 10 is ignited at the instant t1 current will pass around the circuit 6, 9, 10 and after one half cycle of the natural frequency of this circuit the capacitor potential will be reversed and the valve 10 will extinguish at the instant t2. After a time interval T1-longer than the de-ionization time of the valve 10-the valve 3 is ignited at the instant t3 and current passes around the circuit 3, 5, 6 for a half cycle of the natural frequency of this circuit when the capacitor potential again reverses and at the instant t4 the valve 3 extinguishes. After a further time interval T4 the cycle is repeated and the capacitor potential is represented by the curve 12 the mean value of which is represented by a dotted line having a value 13. By adjusting the proportions of the times T1 and T2 the mean value of the capacitor potential is controllable from the positive value 13 to a negative value 16. The load 18 is connected directly to the terminals of the capacitor 6 or an inductor capacitor smoothing circuit may be interposed therebetween. In another embodiment the inductors 5, 9 may be replaced by a single inductor. The control of the valves 3, 10 may be effected in any known fashion. U.S.A. Specification 2,477,095 is referred to.
Patent GB-1456140-A (GB)
Title: Ultrasonic denture bath assembly and method
IPC: A61C17/02
Filed: 1974-04-18
Abstract: 1456140 Ultrasonic cleaning apparatus SONICS INTERNATIONAL CORP 18 April 1974 [24 Sept 1973] 17054/74 Heading H4J In an ultrasonic cleaning tank a transducer 18 is secured to the bottom surface of the tank 13 via an interposed insulating film member 21, by layers 22, 23 of heat cured synthetic resin adhesive. As described, the tank is a denture cleaning tank which is suspended in a housing 12 by its rim which seats in a soft rubber or plastics member 16. A switch 32 to control energization of the transducer is operated via the support foot 29 by depressing the top of the tank. A pilot light 27 is visible through lens 28, and a cover 24 rests on the top edge of the apparatus. The transducer 18 is a flat crystal of piezoelectric material such as lead zirconate and is fixed to the tank by solvent cleaning the opposed surfaces and assembling the crystal to the tank with the interposition of a sandwich of a layer of polyethylene terephthalate film 21 between heat curable epoxy resin adhesive films 22-23 and subjecting the assembly to a pressure of over 50 p.s.i. at a temperature of at least 350‹ F. for 5 to 15 mins. to cure the adhesive and form a secure ultrasonically transparent assembly.
Patent GB-895813-A (GB)
Title: Improvements in apparatus for the arrangement of rods
IPC: B65G47/14
Filed: 1960-05-13
Abstract: 895,813. Orientation of rods. CHRISTIANIA SPIGERVERK. May 13, 1960 [May 15, 1959; Jan. 21, 1960], No. 17065/60. Addition to 761,899. Class 78 (1). Rods 7 rest on rails 1 and against support 6 and are sorted into a uniform layer by cylindrical bodies 4. The bodies are carried on shafts 18 supported on spiders 17 carried on shaft 16 journalled in the framework. The shaft 16 is rotated by motor 20 to cause the bodies 4 one by one to pass through the rods. At the same time, conveyer chains 2 are driven from motor 16, and cause the rods to move over the rotating bodies to fall as a uniform layer down shoot 24. Alternatively the bodies may be oscillated on their shaft, or the bodies may be rotated whilst the shaft is reciprocated.
Patent GB-458122-A (GB)
Title: Improvements relating to retractable undercarriages
IPC: B64C25/14
Filed: 1935-06-14
Abstract: 458,122. Aircraft alighting gear. DOWTY, G. H., Arle Court, Cheltenham, and GENERAL AIRCRAFT, Ltd., London Air Park, Feltham, Middlesex. June 14, 1935, No. 17202. [Class 4] In a retractable aircraft undercarriage comprising a pivoted compression leg 2 of lever-like construction, and an articulated link 11 connected to a fixedly aligned hydraulic jack 16, the link when the undercarriage is extended is approximately perpendicular to the line of movement of the jack. As shown, a landing wheel 5 is carried between shock-absorber members 2 connected by bracing and pivoted at their upper ends to the aircraft. The members 1, 2 are connected to members 9, 8 which are connected by the link 11 to the ram of the hydraulic jack 16, the ram is guided by a tubular member 14 rigidly secured between aircraft frame members 15, 18.
Patent GB-804428-A (GB)
Title: Automatic electric circuit breakers
IPC: H01H71/40
Filed: 1956-06-04
Abstract: 804,428. Automatic circuit-breakers. FEDERAL PACIFIC ELECTRIC CO. June 4, 1956 [June 17, 1955], No. 17202/56. Class 38 (5). In a circuit-breaker having thermal and magnetic tripping, the air-gap of the electromagnet is substantially constant during deflection of the bi-metal strip. As applied to a circuit-breaker generally similar to that of Specification 737,604, the ends of the bi-metal strip 48 and magnetic core 50 are riveted at 59 to the moving contact arm 28. The latch 54 is pivoted at 52 on the bi-metal strip 48 and is held against the end of the strip by the spring 56, the folded end forming the armature for electromagnet 50, 58, the coil 58 of which is connected to the strip 48. Heating of strip 48 under overload conditions moves the latch 54 downwards to release the actuator 26 and trip the breaker. Under shortcircuit conditions the armature is attracted to release the actuator 26 before damage to the bimetal strip 48 can occur. The latch 54 normally bears on the end of a further bi-metal strip 42 which is provided for ambient temperature compensation. In a modification, Fig. 2, the compensating strip 42 is mounted on the end of bimetal strip 48.
Patent GB-550352-A (GB)
Title: Improvements in or relating to ejector mechanism associated with the dies of die-casting machines
IPC: B22D17/22
Filed: 1941-06-23
Abstract: 550,352. Moulds. DANIELS, Ltd., T. H. & J., and DANIELS, J. L. June 23, 1941 No. 17234/42. Divided out of 550,864. [Class 83 (i)] An ejector for a diecasting machine comprises a hydraulic cylinder 11 associated with the fixed die plate 12 and a ram 13 which ejects the casting. The ram can reciprocate-in a flanged sleeve 14 which closes the open end of the cylinder 11 and can be secured to the plate 12 by screws passed through the flange 15 which is sunk into the plate.
Patent GB-547700-A (GB)
Title: Method of producing cast iron and compositions therefor
IPC: C21C1/08
Filed: 1940-12-04
Abstract: 547,700. Cast iron; alloys. ELECTRO METALLURGICAL CO. Dec. 4. 1940, No. 17265. Convention date. Feb. 7, 1940. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 7, 1941] [Classes 72 and 82 (i)] Cast iron having improved properties is made by adding to molten cast iron shortly before casting a composition comprising 25-85 per cent. of silicon, 0.25-10 per cent. of aluminium, and up to 65 per cent. of iron, the amount added being such as to increase the silicon content of the cast iron by 0.05-1 per cent. The composition may also contain 0.5-16 per cent. of calcium, 1-25 per cent. of zirconium, and 1-25 per cent. of manganese, the amount of any one of the last three metals being preferably not more than 25 per cent. of the total addition of silicon, calcium, zirconium, and manganese. Part of the calcium may be replaced by barium, strontium, magnesium, or beryllium, part of the zirconium by vanadium, uranium, niobium, tantalum, cerium, thorium, or titanium, or the whole of the zirconium by titanium. The addition may consist of ferro-silicon, aluminium, and calcium, added simultaneously in intimate association, with or without zirconium and manganese. The cast iron to be treated may contain metals such as chromium, molybdenum, and nickel. Specification 525,706 is referred to.