baber/WOPTO huggingface dataset:
Patent GB-477798-A (GB)
Title: Improvements in or relating to endless-track vehicles with auxiliary wheels
IPC: B62D55/02
Filed: 1936-11-23
Abstract: 477,798. Endless-track and wheeled vehicles. DOBLHOFF, W. Nov. 23, 1936, No. 32082. Convention date, Nov. 23, 1935. [Class 79 (i)] [Also in Group XXXII] In a vehicle running alternatively on wheels and endless-tracks the wheels are moved, in order to bring the tracks into use, in such a manner that at least their lower parts enter into the spaces occupied by the tracks 47 as shown in broken lines in Fig. 2, in order to reduce the effective width of the vehicle at or near the ground level when it is running on the tracks. For this purpose each wheel is mounted on a pair of links 39, 44 arranged as shown, the wheel being raised and lowered by rocking the shaft 40 of the arm 39. In the construction shown the vehicle is provided with four wheels 17 .. 20 and with endlesstracks 47 passing over two sets of load rollers 12 .. 15 and 25 .. 28. The rollers are mounted on rocking arms 37, 35 controlled by torsion bar springs 38, 36. The shafts 40 of the road wheel arms 39 act as torsion bar springs for the wheel suspension. The inner ends of the torsion shafts 40 are clamped in rotatable blocks 33, 34, and to raise or lower the wheels these blocks are rotated by means of a handwheel 21, screw-and-nut gear 41, 22 and links 23 and arms 42 on the blocks. The central rollers 12.. 15 are raised as the wheels are lowered and vice versa, the nut 22 acting also on arms 24 formed on rotatable blocks 31, 32, secured to the inner ends of the torsion bars 38 of the central rollers. The central part of the lower run of the track may be simultaneously raised by a hook 16. In order to allow the road wheels to be brought more fully within, the endless-tracks when the wheels are raised the rollers of the tracks may be inwardly inclined relatively to the tracks as shown in Fig. 2, or the tracks themselves may be inwardly inclined as shown in Fig. 3. The engine 1 drives a change-speed gear 3 and an auxiliary gear 4 from which the drive can be transmitted either to the tracks through a shaft 5 and a steering clutch-and-brake gear 6 or to the road wheels through a shaft 7 and swinging axle-shafts 43, or to both together. The change from running on wheels to running on tracks may be effected without stopping the vehicle, the wheels and tracks being simultaneously driven at the same peripheral speed. After the change has been effected the wheels or the tracks are disconnected from the driving gear. The propeller shaft 7 may be extended to drive a screw propeller 9 if the vehicle is used as a boat.
Patent GB-389773-A (GB)
Title: Improvements in telescopes for observing strong sources of light
IPC: G02B5/02
Filed: 1932-11-14
Abstract: 389,773. Telescopes. ZEISS, C., [Firm of], Carl-Zeiss-Strasse, Jena, Germany. Nov. 14, 1932, No. 32106. Convention date, Nov. 26, 1931. [Class 97 (i).] In a telescope for observing strong sources of light, at least one surface of an optical member of the telescope is frosted so that some of the rays pass through the said surface and some are diffusely dispersed. Preferably the frosting is formed on the surface e of a converging lens d which can be inserted through a slot in the tube a so as to be included at will in the optical system, this lens having such thickness and power that the position of the image plane of the objective b is not altered when it is inserted in the ray path.
Patent GB-208352-A (GB)
Title: An improved automatic water softener
IPC: C02F1/42
Filed: 1922-11-24
Abstract: 208,352. Boby, W., Boby, W. V., and Froude, R. H. Nov. 24, 1922. Purifying liquids.- Apparatus for softening water by passage through base-exchanging or other material comprises an outer cylinder a and an inner cylinder b, closed at the top by a screw plug or cap and contain. ing the softening material. Water supplied to the outer cylinder enters the inner cylinder through perforations or openings c covered with wire gauze, rises through the material and is led away through a rose g and a pipe f provided with a cock h. The inner cylinder is held steady by a strut i, which is provided with a spigot j to receive a flexible or other water-supply tube.
Patent GB-794568-A (GB)
Title: Improvements in or relating to multiple position electric switches
IPC: H01H13/28
Filed: 1954-11-08
Abstract: 794,568. Retractive switches; controllers. STAHL, A., STAHL, O., STAHL, O., and STAHL, B., [trading as STAHL MASCHINENFABRIK, R.]. Nov. 8, 1954 [Nov. 7, 1953], No. 32237/54. Classes 38 (3) and 38 (5). A pendant motor controller comprises two switch units 7 in a housing 1, a common operating rocker 4 acting on actuating plungers 6 which are interconnected by a further rocker 8. Each unit comprises moving contacts 12a, 12b ... 15a, 15b mechanically and electrically connected in pairs by couplers 18 and mechanically interconnected by snap action tension springs 17, the moving contacts being pivoted in the plungers 6. Normally, contacts 12a, 12b, 13a, 13b engage insulation 11, and contacts 14a, 14b, 15a, 15b engage contacts 19, 19a. When plunger 6 is pushed up against the action of a spring (not shown), contacts 20, 21, 20a, 21a are engaged, further movement of the plunger, preferably against the action of a further spring, causing contacts 22, 23, 22a, 23a to be engaged. The controller may control two motors having different speeds, or may control the poles of a single motor.
Patent GB-840694-A (GB)
Title: Electrically-interconnected mechanical calculating apparatus
Filed: 1956-10-23
Abstract: 840,694. Electric calculating apparatus. SPRINGIES, E., and ROSE, H. Oct. 23, 1956 [Nov. 4, 1955], No. 32257/56. Class 106 (1). A mechanical key-set printing calculating machine 51 is connected electrically for the transmission of numbers to a mechanical multiplying machine 58 and to an electrical circuit 66 for determining values dependent upon the amounts entered into it. The apparatus may be used for pay-roll calculations, in which case the circuit 66 may be pre-arranged to determine tax amounts or insurance contributions in accordance with the wage. A further mechanical accounting machine 15 and intermediate storage and blancing mechanism 61 may also be provided. The calculating machine may comprise a set of reciprocable differential actuator racks 71 and each of these may drive a bar 17, Fig. 3, carrying a contact 18 which moves over contacts 19 and rests on that on corresponding to the digit entered. A corresponding control potential is thus applied to lead 56 to transmit the digit from the machine. The bars 17 may be engaged by a pawl 23 releasable by a magnet 21. The potential on the lead 56 causes a rod 25, Fig. 4, in a receiver of the multiplying machine to take up a longitudinal position corresponding to the digit to be received, in the manner described in Specification 833,742. On operation of a cam 26 an arm 27 is rocked and a slide 28 on the rod 25 is shifted to rock that one of a set of levers 30 associated with the digit being received and to depress the corresponding key 33 of the multiplying machine 58. The transmitter of the latter may comprise rotary switches driven by its totalizer wheels and arranged' to apply, to different denominational leads, potentials representing the digital positions of the wheels. These potentials, by means of an electromagnetic device 39, Fig. 6, for each denomination in the calculating machine 51, differentially set a bar 38, again in the manner described in Specification 833,742. The bar 38 has a stepped end 40 which differentially arrests the actuator 71 of the calculating machine 51. When amounts are being entered manually into the latter, magnets 41 are operated to rock upper sections 43 of the stepped portions 40 out of the path of the actuators. The circuit 66 has input leads 45, Fig. 7, one of which is marked according to the input amount. Connected to each lead 45 is a selector switch 46, these switches being set, under the control of keys 69 of the calculating machine, in accordance with the amount to be determined, e.g. income tax, or insurance contribution. A single lead 47 is thus marked, and over diodes 48, marks appropriate control bank contacts 49 of five denominational selector switches 50 which then take up corresponding positions so as to signal the amount of the tax or insurance contribution back to the calculating machine 51. Transmissions between units are controlled by key switches 12.
Patent GB-263497-A (GB)
Title: Method of manufacturing bearings of agglomerated graphite
IPC: F16C33/16
Filed: 1926-12-21
Abstract: 263,497. Soc. Anon. le Carbone. Dec. 22, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Moulding gums and resins.-A bearing bush is formed of agglomerated graphite and bakelite. In the process of manufacture, graphite and powdered resin are intimately mixed together, highly compressed in a mould and heated to the polymerization temperature of the resin. After cool. ing the inner surface of the bush is rectified.
Patent GB-1245346-A (GB)
Title: Semiconductor devices
IPC: H01L29/08
Filed: 1969-06-26
Abstract: 1,245,346. Epitaxial transistors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 26 June, 1969 [27 June, 1968], No. 32375/69. Heading H1K. In a planar epitaxial transistor which has all its contacts on its upper surface the collector sub-layer is made to extend under the collector contact zone and only under that part of the base region which immediately surrounds the emitter region. This construction allows ready diffusion of deathnium impurities through the substrate into the collector and base zones during manufacture. Fig. 1d shows an oxide passivated silicon transistor having interconnected emitter contacts 11 1 , 11 2  (associated with respective emitter regions 8 1 , 8 2 ) and interconnected collector contacts 12 1 , 12 2 . By providing only localized collector sub-layers 4 1 , 4 2  the structure is left open to the diffusion of gold (along lines F) while retaining the desired low collector resistance. Greater numbers of emitters and collectors are possible. In another embodiment a single, annular emitter region is provided and is surrounded by an annular collector control zone; the collector sub-layer is annular also.
Patent GB-765496-A (GB)
Title: Billet container for metal extrusion presses
IPC: B21C29/02
Filed: 1954-11-09
Abstract: 765,496. Extruding. BALDWIN-LIMAHAMILTON CORPORATION. Nov. 9, 1954 [Nov. 19, 1953], No. 32381/54. Class 83 (4). A billet container for a metal extrusion press comprises a plurality of concentric parts 10, 11, 12 tightly fitted one within another, the outermost part 12 consisting of a number of rings 15. The rings are manipulated more easily than a unitary casing, which is advantageous in the case of heavy presses. Annular recesses provided in the mating faces of adjacent rings form grooves 16 for housing temperature-control elements 17. Covers 20 are provided for the grooves. The elements 17, are preferably electric resistance heaters supplied through variable resistances 37 and switches 40 from a common source 36. The heaters are controlled individually by thermostats 18 which act through Wheatstone bridges 25 on contacts 26. The heaters may be controlled to provide any desired pattern of heating or heat gradient along the length of the container by means of the resistances 37 or the switches 40. A selector switch may be provided for closing or opening the various heating circuits. Instead of heating units, cooling elements may be provided for the temperature control.
Patent GB-796872-A (GB)
Title: Improvements in or relating to wired broadcasting systems
Inventor: GABRIEL RALPH PARTON
IPC: H04H20/82
Filed: 1954-11-09
Abstract: 796,872. Distributing music &c. COMMUNICATIONS PATENTS, Ltd. Feb. 6, 1956 [Nov. 9, 1954], No. 32442/54. Class 40 (4). A wired broadcasting system has a first pair of lines 6 which serve local subscribers 9 and also serve an amplifier 7 which feeds a second pair of lines 8 serving remote subscribers 11, the gain of the amplifier being controlled by a signal indicative of the loading put upon the first pair of lines by local subscribers' receiving equipment. In Fig. 1, audio-frequency signals from a transmitting station 3 are applied to the lines 6 over an amplifier 4 and a transformer 5, the secondary of which is split and connected to a D.C. source 13 so that a D.C. voltage across the lines 6 is applied over the split primary of a transformer 15 as a bias to the grid of a variablemu valve 17 which feeds further stages of amplification 21 in the amplifier 7. As the number of subscribers' equipments, one of which is detailed at 9A, connected to the lines 6 increases, the bias on valve 17 decreases and its gain increases to hold the signal applied to the second pair of lines 8 constant. Two variable-mu valves 17 may be used in pushpull and the gain of more than one or of any stage of the amplifier 7 may be controlled by the D.C. voltage on the lines 6. In place of a D.C. source 13 an A.C. signal of a frequency outside the audio range may be applied to the lines 6 and means incorporated in subscribers' equipments to attenuate the signal which is detected at the amplifier 7. Distortion produced by the attentuation of low frequencies may be compensated by the arrangement of Fig. 2 which forms a variable attenuator feeding an amplifier from terminals 36. The primary winding of transformer 15 is split to provide a positive bias to a valve 33 so that as the D.C. voltage on the lines 6 becomes attenuated the impedance of valve 33 increases and the attenuation suffered by the audio-frequencies induced in secondary winding 30, due to the capacity 32 and impedance of valve 33, therefore decreases. Due to capacity 32 the high frequencies are attenuated most. A tone corrected and constant signal is therefore present across the terminals 36. The valve 33 may be replaced by a thermistor.
Patent GB-1528865-A (GB)
Title: Refractory sheathing
IPC: F16L59/147
Filed: 1976-08-04
Abstract: 1528865 Refractory sheathing MORGAN REFRACTORIES Ltd 29 July 1977 [4 Aug 1976] 32523/76 Heading F2P [Also in Division F4] Tubular metal members in a furnace, particularly skid rails are sheathed with material comprising an inner layer 2 of refractory fibrous material and an outer layer 3, 4 of refractory tiles. To support the tiles metal links 5, 6 having studs 10 are secured at one end by a stud and nut connection 8, 9 so that they clamp round the metal member. The inner fibrous layer 2 is wrapped around the metal member and the tiles 3, 4, are placed on the outside so that holes 11 in the tiles engage the studs 10. The holes in the tiles may be plugged with mortar 15 or they may be blind holes not opening through to the outer surface. (For Figure see nexi column.)
Patent GB-1110963-A (GB)
Title: Method of manufacturing thermoplastic graft polymers excelling in impact resistance and transparency
IPC: C08F285/00
Filed: 1965-07-29
Abstract: A thermoplastic graft polymer is prepared by adding to an aqueous dispersion containing less than 60 parts of a butadiene polymer, a formaldehyde sulphoxylic salt and a peroxide (including hydroperoxides and peroxy acids), adding more than 40 parts of the following monomers, vinyl aromatic monomer, methyl methacrylate and acrylonitrile, and then polymerizing the mixture (the parts are by weight based on 100 parts of butadiene polymer and monomers used). The butadiene polymer contains at least 50% by weight of butadiene and more than 80% of the particles are less than 0.1m  in diameter when the monomers are added. The sulphoxylic salt may be sodium or zinc formaldehyde sulphoxylate. The peroxide may be diisopropylbenzene hydroperoxide, cumene hydroperoxide, tertiary butyl hydroperoxide, di-tertiary butyl peroxide, methyl ethyl ketone peroxide, lauroyl peroxide, benzoyl peroxide, ammonium persulphate, potassium persulphate and hydrogen peroxide.  The monomers consist of 5 to 90% by weight (of total monomer) of vinyl aromatic monomer, 5 to 50% of methyl methacrylate and 5 to 60% of acrylonitrile. The sulphoxylate and peroxide are used respectively in amounts of 0.5-10 parts and less than 3.0 parts by weight, based on 100 parts by weight of butadiene polymer and monomer.
Patent GB-1149642-A (GB)
Title: Improvements in automatic buffer couplings for rail vehicles
Inventor: WOLTER WILFRED
IPC: B61G3/14
Filed: 1966-07-20
Abstract: 1,149,642. Railway vehicle automatic couplers MINISTERIUM FUR VERKEHRSWESEN. 20 July, 1966, No. 32597/66. Heading B7T. A tube or rod 2 operating the lock of an automatic coupler is fulcrumed intermediate its ends in bearing 1, see also Figs. 1 and 3 (not shown), situated beneath side buffer. The tube 2 is provided with a radially extending part 3 shown in full lines in its inoperative position "0" and in broken lines in its coupler locked and operative position "R", the extension 3 being provided with notch portion 4 which when the tube is rotated to operate the lock may be engaged by lifting a catch lug 8 on a pawl 7 pivoted at 6 to the bearing housing and provided with handle 9, the lug 8 passing through an opening 12 in the bearing. To release the notch 4 from the locked position the tube 2 must be rotated further in an anti-clockwise position to disengage the parts 4 and 8 and allow the pawl 7 to drop . Bearing clearances are shown in Fig. 3.
Patent GB-820267-A (GB)
Title: The production of diaminopimelic acid by a fermentation process
IPC: C12P13/08
Filed: 1956-10-26
Abstract: Diaminopimelic acid is prepared by the submerged aerobic fermentation of a mutant of Escherichia coli which requires lysine for its growth and lacks the enzyme diaminopimelic acid decarboxylase, the fermentation being carried out on a nutrient medium containing a source of lysine, the pH of which is maintained near neutrality.  A suitable organism is E. coli ATCC 12408.  Neutrality is maintained by the addition of alkali, e.g. sodium hydroxide, potassium hydroxide, or preferably ammonium hydroxide, or urea; towards the end of the fermentation the pH tends to rise, and is adjusted with sulphuric acid.  The medium may contain glycerol, mannitol, and/or cornsteep liquor.  The fermentation is preferably conducted at about 28 DEG  C. for about three days.  Specification 820,268 is referred to.ALSO:Diaminopimelic acid may be used as a supplement in the feeding of poultry, where it takes the place of lysine. Specification 820,268 [Group IV(b)] is referred to.
Patent GB-1525764-A (GB)
Title: Vane-wheel flowmeter
IPC: G01F1/12
Filed: 1976-08-05
Abstract: 1525764 Turbine type fluid flowmeters JOHAN BAPTIST ROMBACH GmbH & CO KG 5 Aug 1976 [11 Aug 1975] 32758/76 Heading F1T The invention relates to a vane-wheel type flowmeter for measuring flow of a gaseous fluid in which means are provided to brake rotation of the vane-wheel when the gaseous flow ceases. The flowmeter shown comprises a rotor 16 carrying vanes 17 and supported on a shaft 11 rotatably mounted in bearings 12, the assembly being located within a tubular member 1 through which the gaseous fluid flows as indicated by arrows. A fairing member 2 is disposed upstream of the vanewheel and defines with the member 1 the annular fluid-flow passage C. A bearing support member 4 is disposed downstream of the vane-wheel and is formed with an annular fluid-flow passage 19; worm gearing 13, 14 is disposed within the member 4 to transmit vane-wheel rotation to a suitable indicator. A pressure chamber 21 is defined within the fairing member 2 being closed by a diaphragm 20 to which is secured a lever 22 pivotally mounted on a bracket 35, the other end of the lever carrying a brake pad 40 which engages the rim of the vanewheel rotor 16 to stop rotation of the rotor when gaseous flow ceases. The velocity head of the gaseous flow is sensed at the inlet 26 of a duct 25 which leads into the chamber 21 so that upon flow of gaseous fluid, the diaphragm is distended and the brake released, the opposite action occurring when the fluid-flow ceases. The axial position of the member 23 defining the pressure chamber 21 may be adjusted by movement of the rod 24 by means of nut 27.
Patent GB-626888-A (GB)
Title: Improvements in boxes or containers for cosmetics, cigarettes, candies and the like
IPC: A24F15/12
Filed: 1946-11-05
Abstract: 626,888. Boxes. NEHRKE, C. Nov. 5, 1946, No. 32770. [Class 18] A box for cosmetics, cigarettes, candies and the like has a sliding mirror faced lid 19, Fig. 3, engaged by a spring controlled pivoted member 21 which causes the lid to assume a tilted position, Fig. 2, when its front edge is clear of a partition 16. As shown in Figs. 2 and 3 the member 21 has clip members 23 slidably engaging grooves in the lid and is anchored to the base of the box by a spring 25 hooked centrally over a lip 27. The lid has a finger grip 30 and may have a catch for engagement with the front wall when it is closed. Projections 28 on the lid engage slots in the member 21 to limit the rearward movement. The box may be provided with compartments for powder, leakage of which may be prevented by felt packing 40, Fig. 10, (not shown), for a mascara brush and for other accessories or it may have a drawer 36, Fig. 7, embodying a lipstick.
Patent GB-354635-A (GB)
Title: Improvements in and relating to high speed precision drilling and like machines
IPC: B23B41/00
Filed: 1930-10-31
Abstract: 354,635. Drilling, milling, &c. machines ; chucks. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT VORM. ROESSLER, 7, Weissfrauenstrasse, and BROMIG, K., 1, Domitianstrasse, both in Frankfort-on-Main, Germany. Oct. 31, 1930, No. 32794. [Class 83 (iii).] A high speed drilling, milling or like machine for precision work, such as drilling small holes in parts of clocks, is characterized by having the drill spindle in one with the shaft of a high speed electric motor or turbine, and the tool chuck secured to the spindle by an adjustable bush. Fig. 1 shows a drilling-machine of this type having the spindle in one with the rotor shaft 10 of a water turbine. The tool chuck, which is of the bevel closing type having a split collet 19, 20 with triangular recess 21 in one of the gripping- jaws, Fig. 4, is fastened to the spindle by a bush 15 provided with a number of set-screws 16 to enable the tool 17 to be accurately centred. The machine is slidably attached to a vertical pillar and can be clamped in working position by a screw 7 having a hand-lever which draws together the spring arms enclosing the pillar.