baber/WOPTO huggingface dataset:
Patent GB-1128752-A (GB)
Title: Improvements in or relating to electron microscopes
IPC: H01J37/20
Filed: 1966-03-04
Abstract: 1,128,752. Electron microscopes. U. VALDRE. 4 March, 1966 [6 March, 1965], No. 9483/66. Heading H1D. In an electron microscpe specimen stage the specimen holder 1 is held in a gimbals mounting for rotational and tiltable adjustment, small contact areas between the bearing surfaces of the gimbals ensuring minimal heat transfer when the specimen is heated and maintained at e.g. 700‹ C. The gimbals mounting comprises inner and outer rings 2, (3), the outer ring (3) being mounted on a turntable 8 so that it can be rotated and the inner ring 2 incorporating a tilt member 9 having a spherical external surface engaged within the end of a tube 10 which is tiltable in two perpendicular directions about the centre of a ball joint 34. The driving mechanism for the turntable 8 comprises a gear train 22, 26, 28 and a worm drive which may be operated through a pair of bevel gears or a universal joint. The tilting mechanism for the tube 10 comprises a pair of driven plungers (135, 136) operating on the beaded element 39. The drive to one of the driven plungers (135, 136) may include a bell-crank lever so that the three drive couplings to the exterior for the tilting and rotating mechanisms may be associated together in a common guide block. On the inner ring 2 of the gimbals mounting is a toroidal heater coil 11 of non.ferromagnetic material, the coil being connected by stranded or braided wire to slip rings 112, 113. The gimbals bearings are point bearings, e.g. threaded pins or deformed portions (53, Fig. 5) of a turntable support (8a) and the rings may incorporate ceramic material to form a heatbarrier.
Patent GB-361244-A (GB)
Title: An improved method of and apparatus for the production of artificial horse-hair-like structures
IPC: B65H54/80
Filed: 1931-03-28
Abstract: In the production of artificial horsehair and like structures wholly or partly from cellulose or cellulose derivatives, particularly viscose, by the use of precipitating baths, the horsehair &c. is conducted from a long precipitating bath around a delivery roller having an horizontal axis and, by means of a reciprocating guide or guides associated with the <PICT:0361244/IV/1> <PICT:0361244/IV/2> <PICT:0361244/IV/3> roller, is delivered to a slowly-rotating can or plate to form a cake.  As shown, the thread from the nozzle traverses a long acid-salt bath 3 to a thread-guide 4 from which it passes to a thread-guide 5 carried by a reciprocating rod 6 and then around a wide delivery roller 7 from which it drops into a slowly-rotating pot 9 where it is fixed by a spray 14.  The rod 6 carries a second guide 8 engaging a loop of the thread, and the reciprocating of p  the guides causes the delivery run of the thread to swing radially of the pot 9 forming a cake 10, Fig. 2.  The pot 9 is detachably supported on a plate 11 having a dished surface and a hollow spindle 13 for the exit of treating liquid which passes through the perforated base 12 of the pot 9.  For washing the cakes, the pots 9, Fig. 3, are placed one above another in a frame 15 with a finely-perforated distributing plate 16 over each pot.  Treating liquid is supplied through a pipe 17 and the pots are progressively moved upwards during treatment. The invention is applicable to threads of cotton, wool, artificial silk, &c. impregnated or coated with cellulose or cellulose derivative, the thread being passed from a spool &c. through a solution of cellulose or cellulose derivative and then through the coagulating bath.
Patent GB-584381-A (GB)
Title: Improvements in sensitised photographic emulsions
Filed: 1944-05-18
Abstract: p-Dimethylaminobenzalacetophenone is prepared by adding aqueous sodium hydroxide solution to a solution of p-dimethylaminobenzaldehyde and acetophenone in spirit.  p - Dimethylaminocinnamalacetophenone, p-di - methylaminobenzalacetone, p - dimethylaminocinnamalacetone, and bis-(p-dimethylaminobenzal)-acetone are similarly prepared. Compounds of the general formula <FORM:0584381/IV/1> wherein n is 0 or 1, Y is = N-NH2, = N-NHR, = N-NR2, = N-NH-CO-NH2, = N-NH-C(= NH)-NH2, = N-NH-CS-NH2, or = NOH, R1 and R2 are alkyl groups and the same or different, and R is H, an alkyl or aryl group, or the group <FORM:0584381/IV/2> are prepared by condensing dialkylaminobenzaldehydes, dialkylaminocinnamaldehydes, or dialkylaminoacetophenones with hydrazine, an alkyl- or aryl-hydrazine, an a  : a -dialkyl- or -diaryl-hydrazine, semi-carbazide, aminoguanidine, thiosemicarbazide, or hydroxylamine. The salt of the nitrogen compound may be refluxed with the aldehyde or ketone in alcohol in the presence of sodium acetate. Specifications 498,290 and 515,372, [both in Group XX], are referred to.
Patent GB-217366-A (GB)
Title: An automatic scotch for preventing vehicles running back on gradients
IPC: B60T1/14
Filed: 1923-04-07
Abstract: 217,366. Thomas, W., and Thomas, W. P. April 7, 1923. Scotch blocks and scotching-appliances; skid.-One or more shoes are each freely suspended on a link and one arm of a bellcrank lever, the other arm of which supports a slidable rod having a roller adapted to rest on the ground when the device is in use and pointed ends adapted to engage the ground when the vehicle moves backwards so as to turn the bell-crank lever and insert the shoe. or shoes between the ground and the back of the wheel. Each shoe 1 is carried by the lower end of a link 2, the upper slotted end 3 of which is pivoted to the vehicle frame, and by the slotted end 7 of one arm 8 of a bell-crank lever mounted on a transverse shaft 9. The other arm 13 of the lever 8 carries a weight 13<a> and also a pivoted bracket 14, through which slides the upper end of a rod 15 surrounded by a spring and provided at the lower end with a forked extension 16 in which is mounted a roller 18 provided with a ratchet so that it turns in one direction only. The, ends of the forked extension are spear-shaped and are slotted to take the roller spindle 19, which is connected at the ends by hooked rods 22 to pivoted levers 24 connected in turn to a rod 26 supported by a strap on the pivot of the bracket 14. Cords 30, 32 are attached to the rod 15 and to the end of the arm 13 respectively and serve to lift the device clear of the ground. When the device is lowered and the vehicle is going up hill the roller will trail and support the shoe, as shown in Fig. 1. If the vehicle reverses, the roller slides up in the slots and the sharpened ends 13 of the rod dig into the ground. Further backward movement causes the rod to slide in the bracket 14 and the shoe to engage the wheel.
Patent GB-232249-A (GB)
IPC: G08B5/30
Filed: 1925-04-09
Abstract: Disinfecting, bactericidal, insecticidal, fungicidal and vermin-destroying preparations are obtained by treating a base of a basic dye with arsenious or arsenic acid.  Examples are described of their preparation starting with crystal violet P or malachite green, precipitating the carbinol base with alkali and then boiling it with arsenic or arsenious acid.
Patent GB-308479-A (GB)
Title: Improvements in or relating to brakes for motor rail vehicles
IPC: F16D55/224
Filed: 1928-03-29
Abstract: 308,479. Bergische Stahl-Industrie. March 29, 1928. Addition to 262,374. Acting on ftat sides of discs.-The brake for railway vehicles described in the parent Specification comprises a disc c on to which two brake shoes b are adapted to be moved and which is mounted on the motion shaft d or a lay shaft between the piston and the driving wheels. The shoes have a rectilinear guide in a brake bridge f in which are also supported double-armed levers g for operating the shoes and which have wear members h adapted to be engaged by cams i on double-armed levers k, which are arranged in the plane of the vehicle axle. The shoes may be actuated directly by the cams i.
Patent GB-590157-A (GB)
Title: Fluid torque converters
IPC: F16H61/54
Filed: 1945-04-17
Abstract: 590,157. Fluid torque converters. CLEVELAND, F. J. (Bendix Aviation Corporation). April 17, 1945, No. 9547. [Class 69 (ii)] In a fluid transmission comprising an impeller 60 and a turbine 68 providing in conjunction with one another a channel 70 for the circulation of a power transmitting fluid, and a reaction member 102 mounted on a fixed support 18 and movable into and out of the fluid channel by the forces exerted thereon by the power transmitting fluid, a toggle 98 pivotally attached to the reaction member at 106 and the fixed support at 96 governs the movement of the reaction member. Rotation of the impeller 60 energizes the fluid in the toroidal channel 70, the energy being received by the turbine and the reaction member, resulting in rotation of the former. The vanes 116, 118 of the reaction member remain in the channel until a predetermined speed is reached, at which the flow changes and the fluid impinges on the backs of the vanes and causes rotation of the reaction member. Due to the toggle 98, there is simultaneous axial movement and the reaction vanes are thereby withdrawn from the toroidal channel. When increased torque is required, the fluid now again changes and results in movement of the reaction member which introduces the vanes into the channel.
Patent GB-550952-A (GB)
Title: Manufacture of artificial leather
Filed: 1941-07-28
Abstract: 550,952. Polyamides. DU PONT DE NEMOURS & CO., E. I. July 28, 1941, No. 9558. Convention date, July 29, 1940. [Class 2 (iii)] Leather substitutes are obtained by subjecting sheets comprising synthetic linear polyamides to "cold working followed by an embossing or plate-pressure treatment at a temperature above 60‹C. but below the melting point of the polyamide without altering the linear dimensions of the sheet. The term " cold working comprises subjecting the sheets to elongation under compressive or tensile stress, e.g. by passing them between rolls under high pressure or by cold drawing. The polyamides may be prepared as described in Specifications 461,236 and 461,237 and may comprise interpolyamides, ester-amide interpolymers, and carbamates obtained by reacting equimolecular quantities of diisocyanates or diisothiocyanates with a bifunctional diol e.g. decamethylene diisocyanate and decamethylene glycol. In examples (1) an interpolyamide obtained from hexamethylenediammonium adipate and caprolactam is mixed with carbon black and N-ethylo and p-sulphonamides in a mechanical mixer heated to 250‹C. The polyamide is fed to differential speed rolls maintained at 130‹C. and rolled into slabs which are cut into sheets which are rolled in different directions. The sheets are placed in a press having an engraving plate and subjected to pressure at 85-88‹C. The material used may comprise a textile fabric having a polyamide coating or the polyamide sheet may be provided with a flexible backing. Specifications 521,946 and 522,161, also are referred to.
Patent GB-744620-A (GB)
Title: Improved testing device for fluid pressure gauges
Inventor: GRANT CHARLES ROBERT ARCHIBALD
IPC: G01L27/00
Filed: 1953-04-09
Abstract: 744,620. Testing pressure gauges. PRESSURE GAUGES, Ltd. April 9, 1954 [April 9, 1953], No. 9682/53. Class 106 (2). A deadweight tester for fluid pressure gauges comprises a pair of piston and cylinder units 29, 19 and 28, 18 of different internal diameters rigidly mounted substantially coaxially at opposite ends of a bore 17 in a body 16 with mechanical interconnection 31 between the pistons and means for applying a predetermined endwise loading to one piston, the piston and cylinder units being made of materials having thermal coefficients of expansion differing so that the difference of the effective areas of the piston and cylinder units remains substantially constant over the working range of temperatures. A high pressure pump 2, Fig. 3, hydraulic connecting post 3, reservoir 4 and differential piston and cylinder unit 5, Fig. 2, are all mounted on a base 1 having four adjusting screws 6 and a bubble level indicating gauge 7. The pump 2 is of the screw operated single stroke type, the screw being operated by a capstan handle 8 to generate hydraulic pressure, the base being steadied by an adjacent handle 9. The pump 2 is connected by a union 12 to the post 3 which is fed directly from the reservoir 4 under the control of a needle valve operated by a knob 13, a union 14 and pipe 15 connecting the post 3 to the piston and cylinder unit 5. The unit 5 comprises the body 16 with bore 17 in which the cylinders 18, 19 are secured in fluid-tight manner. Pistons 28, 29 slide in the cylinders 18, 19 and are interconnected by a wire 31 secured by collets 32, 33. The upper cylinder and piston 19, 29 have a larger diameter T and are made of a metal or alloy having a lower coefficient of expansion a 1  than the diameter B and coefficient a 2  of the lower cylinder and piston 18, 28 and the dimensions and coefficients are chosen so that T<SP>2</SP>/B<SP>2</SP>is approximately equal to a<SP>2</SP>/a<SP>2</SP> whereby the difference of effective areas of the piston and cylinder units will remain substantially constant with temperature changes over a working range. A pressure gauge to be tested is connected to a union 37 on the post 3, the valve 13 is opened while the handle 8 is unscrewed to fill the pump 2 with liquid from the reservoir, the valve 13 is then closed while the pump handle is screwed up until a weight pan 34, secured to the upper piston 29 and carrying a weight representing a certain pressure, is lifted off an abutment 36 in the bore 17 and rises to a position where it is entirely supported by liquid pressure as indicated by a level marked on an adjacent post 35. The pan 34 is rotated by its knurled edge to overcome friction and allow the correct pressure defined by the weight to be generated and applied to the gauge under test. Specification 596,043 is referred to.
Patent GB-786090-A (GB)
Title: Improvements in or relating to disc brakes for railway vehicles
Inventor: JACKSON GEOFFREY CARL
IPC: B61H5/00
Filed: 1955-04-02
Abstract: 786,090. Disc brakes. GIRLING, Ltd. March 23, 1956 [April 2, 1955], No. 9690/55. Class 103 (1). In a disc brake for railway vehicles in which arcuate brake shoes 15 carrying friction pads are pivotally mounted on opposed pivotal caliper levers 17, 18 and are adapted to be applied by fluid-pressure or mechanical means against a disc or discs 13 rotating with a wheel or axle, the caliper levers 17, 18 are pivotally mounted by means of pins 19 on the limbs of a yoke 20 which is mounted on the bogie frame 10 for angular movement about an axis lying in the central plane of the disc or discs and radial with respect to the axis of the disc or discs so that the yoke and caliper levers can accommodate themselves to the angular displacement of the disc or discs in relation to the bogie frame 10. A curved rigid arm 25 of a hollow box member is pivotally connected to the bogie frame at 24 and is integrally connected to yoke 20 to prevent overloading of the main bearing formed by pin 21 passing through bushes in the yoke 20. Located between the outer ends of the caliper levers 17 and 18 is a fluid pressure piston and cylinder assembly constituting the brake actuating assembly 27. If an hydraulic cylinder is used, liquid under pressure is supplied through a flexible hose 29 counected to a pipe 30 leading to a master cylinder actuated by a vacuum or compressed air cylinder connected to the train braking system. Alternatively, a pneumatic cylinder can be used and air under pressure can be fed to it from the normal train brake equipment. The brake may also be manually applied through linkage 31, 33, 36, 39, 40, 43, 44. Each of the friction pads 14 is bonded or otherwise secured to a backing plate 50 and is detachably secured to the shoe 15 for replacement when worn by release of bolts 55 and the pivoting of clamping member 53 to facilitate withdrawal of the friction pad 14. A layer 51 of rubber or the like may be provided between the backing plate 50 and the brake shoe 15. Each of the cast iron brake discs 13 is cast to a corrugated annular carrier 60 pressed from resilient sheet metal to provide resilience to allow for a limited radial movement of the brake disc with changes of temperature. Radial ribs 61 are provided to maintain a constant distance between the braking surfaces of the two discs 13 and radial slots may be provided in the carriers 60 to increase the resiliency of these portions and to permit the circulation of air for cooling.
Patent GB-493305-A (GB)
Title: Improvements in and relating to garments
IPC: A41D11/00
Filed: 1937-04-06
Abstract: 493,305. Wearing - apparel. MACCULLOCH, D. R. N. April 6, 1937, No. 9701. [Class 141] A garment comprises a separate vest 1 and trousers 9 which are detachably secured together at the waist so that the length of the garment may be varied as desired, and the trousers 9 are slit on both sides 11 at the upper end to form front and rear flaps, and are provided with completely closed portions 10 for the feet. The vest is provided with spaced bands 6, 8, to which buttons or other fastening elements 7, 7<1> are secured for attachment to buttonholes &c. 12, 12' at the upper edge of the trousers, and is further provided with a closable slit 4 on one or both shoulders. The buttons used in the garment are preferably of rubber composition.
Patent GB-612816-A (GB)
Title: Improvements in crankshaft turning lathes
IPC: B23B5/18
Filed: 1945-04-18
Abstract: 612,816. Lathes. BUGATTI, E. I. A. April 18, 1945, No. 9716. Convention date, March 1, 1944. [Class 83 (iii)] A crank-shaft turning-lathe of the stationary work type with a number of flat annular tool carriers spaced apart and encircling the work adapted to operate simultaneously on different portions thereof, is characterised in that each flat annular tool carrier has an annular rotary cam controlling a tool rest guided in a radial recess of the carrier. A number of drums 7, Fig. 5, according to the number of crank-pins to be turned are mounted in a bed 56. Supporting segments 29 bolted to the drums carry clamping means 33, 65, 66 for clamping the ends or webs of a crank-shaft which is held stationary during machining. The tools. 40, Fig. 6, which cut the full width of the crankpin as the feeding movement develops (see below), are carried in radial slides 36 with V- shape guide edges which move in ways 38 in rotatable carriers 13, 16, Figs. 2 and 3. A cam plate 17 rotatably mounted in an annular recess formed by the two parts of the carrier, feeds the tools inwardly against the tension of springs 48 carried in the drum. The tool carrier disc and the cam disc have toothed peripheries, the number of teeth differing slightly so that when rotated by the pinions 23 and 25 from self-contained electric motors, Fig. 10, a slow feed movement is imparted to the tool carriers. Four tools are used in each annular carrier with differently shaped cutting edges so that the crank-pin and webs are cut progressively as the tools feed inwardly.
Patent GB-727940-A (GB)
Title: Improvements in or relating to combination sleeping bags and mattresses
IPC: A47G9/08
Filed: 1953-04-10
Abstract: 727,940. Sleeping bags. JAHN, [nee MAAS], C. April 10, 1953 [April 12, 1952 ; June 5, 1952; Dec. 1, 1952], No. 9793/53. Class 133. [Also in Groups XIV, XXI and XXXII] In a combined sleeping bag and lightweight resilient mattress the mattress is formed with air cavities and is connected to the sleeping bag by readily releasable means. As shown in Fig. 2, the mattress 1 formed of sponge rubber has transverse ribs 7 forming air-filled cavities and is secured by sliding clasp or snap fasteners to a roll-up type sleeping bag 2 closed by a sliding clasp fastener 3. The mattress and sleeping bag may have waterproof covers. Fig. 4 shows a mattress formed by contiguous, straight, hollow prisms 9 which are integral or are secured together by adhesive, the mattress having a waterproof cover extending over the undersurface, the four sides 12, 13 and forming a border 14 round the top surface leaving an air-permeable window 15 covered by textile material. The waterproof cover may be sprayed on and the sleeping bag may have a warm lining and be worn as a rain-proof. The hollows in the prisms may enclose inflated rubber bags or rods or tubes forming telescopic tent poles or carrying rods passing through loops 8 on the sides of the mattress to form a litter. The resilience may vary between the top and the base of the mattress and because of its buoyancy the combined article may be used in water sports as a raft or connected in series to form a' bridge.
Patent GB-269536-A (GB)
Title: Improvements in and relating to high-tension measuring devices
IPC: G01R15/14
Filed: 1927-04-09
Abstract: 269,536. International General Electric Co., (Assignees of Allgemeine Elektricitõts-Ges.). April 17, 1926, [Convention date]. Protective arrangements.-In a high-potential system, a measuring device M is connected in series with a spacecurrent device R between a high-potential point L and earth E. The instrument M may be connected to two space-current devices for measuring the voltage between two lines. In the case of alternating current, the instrument may be connected through a transformer. The electrodes may be of different sizes, for example the cathode may be a cylinder and the anode a rod within it. Rectification is thereby effected, enabling direct-current instruments to be employed on alternating-current circuits. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the application of the invention to relays. This subject-matter does not appear in the Specification as accepted.
Patent GB-600576-A (GB)
Title: Improvements in or relating to means for carrying bomb and like loads on aircraft
IPC: B64D1/22
Filed: 1945-04-19
Abstract: 600,576. Carrying bombs &c. on aircraft. FAIREY AVIATION CO., Ltd., and CHAP. LIN, H. E. April 19, 1945, No. 9830. [Class 9 (ii)] [Also in Group XXXIII] Means for carrying bombs, auxiliary fuel tanks and the like on aircraft comprises an open-bottomed box for attachment to the underside of the fuselage or wing, a thin fin - like housing mounted longitudinally of the aircraft to enclose said box, and crutch means interposed between the aircraft and the bomb, the box carrying the moving parts of known release mechanism and the fin-like housing carrying a known magnetic release mechanism including a part engageable with the release mechanism in said box and, if desired, a known release hook mechanism. In the form shown in Figs. 1 and 2, for carrying a bomb 14, the open-bottomed box a is secured to the wing spar d by lugs b, and the fin-like housing g is provided with a lug p having a locating pin q engaging a recess in the box a. The. crutch comprises saddle-pieces v engaging the base portion of the housing g, and struts 15 carrying feet 13 engaging the bomb and adjustable ball-ended bolts 16 engaging recesses 18 in the underside of the wing. When the bomb is released, spring-pressed plungers t in the undersurface of the housing g disengage the saddle pieces therefrom, to jettison the crutch structure. When the bomb gear is used for practice purposes, the saddle-pieces are secured to the housing by quick-release bolts, the crutch remaining in position after release of the bomb. In the case of a structure for carrying an auxiliary fuel tank, the saddle-pieces are omitted and the lower ends of the struts are welded to the tank, so as to be jettisoned therewith. The tank is held in position by hooks m, o disposed in the housing g.
Patent GB-271833-A (GB)
Title: An improved motor-driving material
IPC: C10L1/04
Filed: 1927-04-11
Abstract: 271,833. R³tgerswerke - Akt. - - Ges., and Kahl, L. May 28, 1926, [Convention date]. Liquid fuel for internal-combustion engines consists of a mixture of solid fuels which is liquid at ordinary temperatures. The usual fuels, e.g. petrol, benzine, alcohols, tetrahydronaphthalene, cyclohexanol, gas oils, tar oils, or mixtures thereof may be added. In an example 25.8 lb. of naphthalene, 23.4 lb, of phenanthrene, 22.9 1b. of acenaphthene, 25.4 1b, of diphenyl oxide, and 8.5 lb. of fluorene are melted together. The mixture is liquid a.t about 18-20‹ C. Specification 14778/13 is referred to.