baber/WOPTO huggingface dataset:
Patent GB-802630-A (GB)
Title: Means for retarding free-running mine cars
Inventor: BARKER WILFRED
IPC: B61K7/02
Filed: 1955-10-10
Abstract: 802,630. Mine car retarding apparatus. BARKER & SON ENGINEERS, Ltd., W. H. Oct. 2, 1956 [Oct. 10, 1955; May 22, 1956], Nos. 28761/55 and 15743/56. Class 104 (2). In a mine car retarder comprising a power-driven endlesschain b located in the car track and adapted for engagement by live or dummy axles h or other parts of the cars g, the chain b has in combination therewith pads a which slide along a support d situated beneath the active part of the chain. In the arrangement shown in Fig. 1 the pads a have a pair of oppositely inclined upper surfaces and are supported between the links of the chain b by a pin c. In the modification shown in Fig. 4 the pad a is of inverted " U " form and straddles the chain b. In the arrangement shown in Fig. 2 the support d is resiliently supported on links e one or more of which may be loaded by a spring f. In a further modification shown in Fig. 5, the pads a are made of an equi-sided triangular form having rounded corners and are free to rotate on the pins c. Each pad a may have a cylindrical shaped portion between its ends to engage lugs on the drums supporting the chain. The pads a when passing over the drums supporting the chain are rotated so as to bring a different surface into use.
Patent GB-391177-A (GB)
Title: Improvements in or relating to hypodermic syringes and cartridges therefor
IPC: A61M5/24
Filed: 1931-10-16
Abstract: 391,177. Hypodermic syringes. NOVOCOL CHEMICAL MFG. CO., Inc., 2921, Atlantic Avenue, Brooklyn, New York, U.S.A.-(Assignees of Goldberg, S. D. ; 406, East 94th Street, Brooklyn, New York, U.S.A.) Oct. 16, 1931, No. 28815. Convention date, Dec. 15, 1930. [Class 81 (ii).] An ampoule 2 employed in hypodermic syringes is closed, at the end to be punctured by the needle; by a cap comprising layers 21 of rubber separated and stiffened by a layer 22 of fabric and covered with a layer 23 of aluminium foil or other material sterilizable by flaming. The cap is held in place by a ring 18 of metal having an annular flange 18a and is crimped as at 19 into an annular recess 16 in the ampoule. The capped end of the ampoule is of reduced internal diameter as at 17. In a modification the cap comprises a single rubber layer having a fabric layer immediately beneath the foil 23. In use the cap once sterilized is protected from contamination by the foil &c. 23 which itself may be sterilized in a flame before insertion into the syringe. The piston plugs of ampoules such as above may be of different colours to indicate different strengths of contents. The head of the plunger rod of the syringe may be formed with a conical depression leaving an annular rim for engagement with the piston plug. The syringe body is provided with a screw-threaded sleeve embracing the plunger rod and having a shouldered annular skirt which engages over and securely holds the upper end of the ampoule.
Patent GB-487670-A (GB)
Title: Improvements in or relating to metallurgical furnaces
IPC: C21D9/663
Filed: 1936-10-23
Abstract: 487,670. Metal - heating furnaces. STEVENS, A. H. (Continental Roll & Steel Foundry Co.) Oct. 23, 1936, No. 28856. [Claas 51 (ii)] In a direct-fired bell-type furnace the burners are arranged on opposite sides of the exhaust gas outlets and the charge is so supported that the heating-gases can circulate beneath it. In the construction shown, the burners 29 deliver through ports 30 in the side walls of the rectangular bell A, while the exhaust ports 22 are in the fixed base. The charge is contained within an annealing-box 28 spaced above the base on balls 27, and baffle walls 32 prevent direct play of the flames on the box. In a modification, Fig. 4 (not shown), the exhaust ports are in the side walls between the upper and lower rows of burners, and in another form, Figs. 1-3 (not shown), both burner and exhaust ports are in the fixed base. The bell is guided into position on the base by eyes 24 and pins 25.
Patent GB-483500-A (GB)
Title: Improvements in or relating to photographic cameras provided with means for the removal of disturbing light reflections in making exposures
IPC: G03B17/12
Filed: 1936-10-23
Abstract: 483,500. Lens fittings for photographic cameras. ZEISS IKON AKT.-GES. Oct. 23, 1936, No. 28873. Convention date, Nov. 26, 1935. [Class 98 (i)] In order to facilitate the angular adjustments of a polarizing screen employed on a camera objective for eliminating disturbing light reflections in the field of view, the screen may be rotatably mounted either on the objective or on the view-finder so that it can be adjusted to the most favourable angle while on the finder, and may then be transferred in adjusted position to the objective with the aid of scales ; or a screen rotatably mounted on the objective may be adjusted to the same angle as a similar screen rotatably mounted on the finder, either manually with the aid of scales, or automatically by gearing between the two screens. As shown, the screen 2 on the view-finder 1 is coupled by toothed wheel gearing with the screen 4 mounted on the objective.
Patent GB-1503590-A (GB)
Title: Cyclopropane esters and their use as pesticides
IPC: C07C31/133
Filed: 1975-07-09
Abstract: 1503590 Cyclopropane esters ZOECON CORP 9 July 1975 [17 July 1974] 28904/75 Heading C2C The invention comprises compounds of the Formula I wherein n is the even integer 6, 8, 10, 12 or 14 and R is alkyl of one to sixteen carbon atoms, with the proviso that the total number of carbon atoms in the molecule is at least 15 but not more than 28. The compounds of Formula I may be prepared by (i) reacting the appropriate alcohol ROH with at least one of an acid of formula in the presence of an acid catalyst and with heating, or (ii) reacting the appropriate acid halide with the alcohol ROH at either room temperature or, when the alcohol is sensitive, at from about - 10 to about 0 C. The compounds of Formula I are used as herbicides and compositions as such are described and claimed.
Patent GB-1080595-A (GB)
Title: Improvements in or relating to small oil-filled electrical components
Inventor: DYER GUSTAVUS HAROLD
IPC: H01G4/22
Filed: 1963-07-22
Abstract: 1,080,595. Capacitors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 11, 1964 [July 22, 1963], No. 28958/63. Heading H1M. A small electrical component such as a capacitor is inserted into its housing through a large opening (at the bottom in the Figure) which is then sealed. After drying and impregnating with oil through the smaller opening (at the top) the housing is sealed by rigid and resilient discs 17, 15 held against an internal annular ridge 11 by bending over an integral portion 13 of the housing. Insulated connections 5 are made through the lower end.
Patent GB-158418-A (GB)
Title: A device for keeping food under cover
IPC: A47G19/26
Filed: 1919-11-21
Abstract: 158,418. Bossini, R. F., and Damiano, C. Nov. 21, 1919. Covers for plates, dishes, and the like; stands. -A cover 14 for food is carried by a piston 12 which may be raised by compressed air &c. or liquid forced into a cylinder 11 past a ball valve 13 by a pump 2, or admitted thereto from a reservoir. In order to lower the cover again, a partial vacuum is set up in the chamber 6 so as to cause a plunger 7 to move to uncover the end of the exhaust pipe 10.
Patent GB-787847-A (GB)
Title: Improvements in or relating to the arrangement of the carburettor in a motor cycle
IPC: B60K13/06
Filed: 1954-10-07
Abstract: 787,847. Spray carburetters; intake silencers. AUTO UNION GES. Oct. 7, 1954 [Oct. 16, 1953], No. 28964/54. Addition to 787,576. Classes 7(2) and 7(3) [Also in Group XXXI] A partition 9 divides a carburetter housing 1 of a motor cycle into an antechamber 10 containing the air-inlet duct 11 and a resonance chamber 8 containing the carburetter 2, the partition 9 leaving an opening 12 between the chambers. As shown the housing 1 comprises two opposite hand parts extending on opposite sides of the carburetter and joined to a lower portion 3 by a headed screw 15 screwed into an extension 17 of the air induction pipe 5. The opening 12 is disposed remotely from the inner end of the duct 11 causing the air to follow an S-shaped path. The carburetter inlet is provided with a filter 6 disposed adjacent the opening 12 but facing a wall 7 of the housing 1. The chamber 8 is dimensioned to have a natural frequency outside the frequency band of the sound waves passing therethrough. The housing 1 extends rearwardly from the engine cylinder (not shown) towards the front of the cycle rear wheel (not shown) and upwardly to the underside of a fuel tank (not shown) provided above the engine cylinder.
Patent GB-887858-A (GB)
Title: Improvements in or relating to electric time switches
IPC: G04C23/18
Filed: 1959-08-25
Abstract: 887,858. Time switches; snap-action switches. SEELE, H. A. Aug. 25, 1959, No. 29006/59. Class 38 (5). A time switch comprises a clock motor 10 having a fast shaft 12 and a slow shaft 13, making one revolution per hour and per day respectively. Shaft 13 carries a flanged disc 15 having a cam 16 engageable with a rise 24 on a resilient bracket 21, whose upper end is secured to a back plate 14 and whose lower end is apertured to clear shaft 12. This lower end engages a spring-urged clutch disc 25 rotatable with and slidable on shaft 12, and having a tooth 26 cooperable with a tooth 31 carried by a plate 30 rotatable on a hub 28 and spaced by legs 32 from a disc 33 mounted on an insulating plate 20. Plate 30 is connected by a torsion spring 36 to a rotatable arm 35 carrying an insulated contact 40 bridging fixed contacts 44, 45 and having a contact end 39 bridging fixed contacts 42, 43. Arm 35 has a resilient lock tooth 37 normally engaging holes 38 in the disc 33 and releasable by a cam 34 carried by the plate 30. In operation engagement of members 16, 24 deflects the tooth 26 to engage tooth 31 and rotate plate 30, so building up torsion in the spring 36 which, when the tooth 37 is released, moves the arm 35 to the next contact position, the number of arm movements in a given time being controlled by the speeds of shafts 12, 13 and the width of the cam 16. Should the clock fail the arm 35 may be operated by a manually controlled knob 46 carried by an extension 47 of the hub 28. The flange 17 of the disc 15 is graduated in hours readable through a hole 19 in the plate 20.
Patent GB-1243275-A (GB)
Title: Improvements in or relating to polymer dispersions
Inventor: KENNEDY ALEXANDER WILLIAM
IPC: C08G59/00
Filed: 1969-06-09
Abstract: 1,243,275. Polymer coatings. DIAMOND SHAMROCK CORP. 9 June, 1969 [11 June, 1968], No. 29125/69. Heading B2E. [Also in Division C3] Substrates are coated by applying to the surface a flowable polymer dispersion comprising particulate fluorocarbon polymer dispersed in a normally liquid organic medium and 2-50 parts, per 100 parts by weight of the fluorocarbon polymer, of a linear or branched-chain thermoplastic fusible prepolymer capable of cross-linking and conversion to an infusible material at elevated temperature, at least a major amount of the prepolymer being dissolved in the organic medium and heating to coalesce the fluorocarbon polymer and crosslink the prepolymer. In the Examples tin-plated steel and chromate-treated aluminium panels are coated.
Patent GB-238112-A (GB)
Title: An improved roofing tile
IPC: E04D1/04
Filed: 1924-12-05
Abstract: 238,112. Parker, J. Dec. 5, 1924. Roofing-tiles have unequal V-shaped ridges running longitudinally down each side and terminating in caps. The one ridge m fits under the other ridge n of an adjacent tile, while the one cap a is the same size as the ridges n. The larger cap b fits over the abutting ends of one ridge n and a cap a. The plain end of the ridge n and the capped end of the ridge m are shortened, as shown, to allow overlapping of the tiles.
Patent GB-446172-A (GB)
Title: Improvements in or relating to photographic reversal processes
IPC: G03C5/50
Filed: 1934-10-11
Abstract: 446,172. Photographic reversal processes. HARRISON, G. B., 23, Roden Street, Ilford, Essex. Oct. 11, 1934, No. 29186. Drawings to Specification. [Class 98. (ii)] In the silver halide reversal process, wherein a latent negative (or positive) image in a silver halide emulsion layer is removed after development, and the residual silver halide is then converted into a positive (cr negative) in the same layer, control of contrast in the reversed image is obtained by subjecting the layer to a controlled exposure to uniform light to produce general fog at any time prior to the first development, i.e. prior to, during, or after the first exposure. In the case of a film,. the fogging exposure may be given by passing the film, after it has been exposed in a camera or under a negative or positive image which is to be copied, at uniform speed under a uniformly-illuminated slit. The primary image and general fog produced by development are both removed in the usual reversal bath, whereafter the layer is exposed to diffused light and developed to produce the reversed image. The underlying theory is discussed in the Specification with reference to characteristic curves. Reference has been directed by the Comptroller to Specification 432,505, [Group XXXVIII].
Patent GB-408343-A (GB)
Title: A stand or trivet for supporting cooking or heating utensils on a hearth
IPC: F24C15/10
Filed: 1932-10-20
Abstract: 408,343. Hearth stands. BRADFIELD, W. S., 52, Almonds Green, West Derby, Liverpool. Oct. 20, 1932, No. 29311. [Class 126.] A hearth stand for supporting utensils in front of or over the fire comprises a perforate or imperforate platform A of circular or other shape, centrally or eccentrically mounted on a telescopic or fixed pillar B carried by splayed legs C, the tops of which are of such a height as to clear the underside of the grate to enable the platform to project over the fire.
Patent GB-759691-A (GB)
Title: Falsework support for use in building construction
IPC: E04G11/52
Filed: 1950-11-30
Abstract: 759,691. Girders for supporting ceiling shuttering. HINZE, O. Nov. 30, 1950 [Oct. 1, 1948], No. 29342/50. Class 20(2). Falsework for ceilings &c. supported on a number of girder sections 2, Fig. 2, having top members abutting by their end faces at 5 and bottom members connected by adjustable means such as turnbuckles 6, so that the falsework can be cambered upward to compensate for the weight of the concrete or allowed to sag for dismantling. The turnbuckles are detachable by means of pins to allow dismantling and the abutting top members may be connected by clamps for ease of transport when not dismantled. Each girder section comprises a U-section top member 2, Fig. 7, connected to the bottom tubular member 3 by zig-zag tubing 4. A number of girders may be connected together by cross ties connected to vertical plates 22. The end sections rest by means of tongues on the walls of the structure, being built or as shown in Fig. 2, a triangular bracework 24, 26 connected to the end of the girder by a butt joint 5 and a turnbuckle 6 carries by means of its upper member 24 and a pin and slot connection a slidably adjustable strip to rest on the wall as described in Specification 759,712. An alternative girder comprises a top member formed by two angle irons 2, Fig. 8 between which is welded a single zig-zag tubing 4. A further modified girder comprises an angle iron top member 29, Fig. 13 connected to a tubular bottom chord 3 by a web plate 30 with angle iron reinforcements 31. These girders abut by end members 31<SP>1</SP> and the turnbuckles are connected to sockets 3a. The girder shown in Fig. 13 is an end girder having a support 32 for engagement with a wall. Figs. 14 and 15 (not shown), show the falsework for a ceiling having a main beam and subsidiary cross beams in which.girders as shown in Fig. 13 are used to encase the sides of the main beams.
Patent GB-483831-A (GB)
Title: Improvements in gas valves
IPC: F23Q21/00
Filed: 1936-10-29
Abstract: 483,831. Gas valves. HORSTMANN GEAR CO., Ltd., HORSTMANN, F. O., HORSTMANN, H. G., and HORSTMANN, B. G. Oct. 29, 1936, Nos. 29420/36 and 10763/37. [Class 135] A rotary gas cut-off valve 6 is closed automatically by a predetermined variation in the normal gas pressure by a lever 1 connected to the valve by lost-motion means 12 and to a diaphragm 3 or the like exposed to the gas pressure, the lever also being connected to a tumbler 19 which holds the valve closed when the normal pressure is restored. The tumbler 19 comprises a bell-crank lever movable about a fixed pivot and having long and short arms 19, 16. The long arm 19 may have an additional fixed or adjustable weight 19a whilst the short arm 16 is connected bv a link 17 to an ear on the lever 1. The lever 1 is pivoted on a fixed support 2 at one end whilst its other end has a pin-and-slot connection 12 with an arm 10 on a rotary plug valve 6. The lever 1 is actuated by a diaphragm 3 in a chamber 4 and may be additionally loaded by a weight 20 carried on the diaphragm. A chamber 5 below the diaphragm communicates by a passage 7 with the gas inlet 8. As shown in Fig. 1, the valve is closed by an abnormal increase in pressure which raises the lever 1. Although the valve may be re-opened by an abnormal decrease in pressure, the form shown in Fig. 1 is provided with a lever-operated relief valve 27 which closes the passage 7 and vents the chamber 5 to atmosphere to re-open the valve. In Fig. 4 the valve 11 is re-opened manually by a spring-returned sliding rod 28 which carries an abutment 30 engaging a projection 31 on the valve actuating lever 1. The rod 28 may be replaced by a pivoted member. The lever 1, Fig. 5, opens the gas valve when lowered by an abnormal decrease in gas pressure. The valve is locked in the closed position by a catch 39 on a lever 34 when a pin 38 on the lever 1 engages an arm 37 on the lever 34. The catch is released from a pin 40 and the lever 1. raised by an abutment 36 on the reset member which engages a further arm 35 of the lever 34. The diaphragm may be replaced by a bell or a piston. The actuating end of the lever 1, Fig. 1, is enclosed by a shield 42. According to the first Provisional Specification, the valve actuating lever may be extended beyond the valve for manually reopening the valve, and according to the second Provisional Specification the locking device may comprise a spring-loaded pawl.
Patent GB-411743-A (GB)
Title: Improvements in or relating to envelopes for circulars and the like
IPC: B65D27/22
Filed: 1933-10-24
Abstract: 411,743. Envelopes. CHAPMAN, D. G., and CHAPMAN & CO. (BALHAM), Ltd., Grange Mills, Grove Road, Balham, London. Oct. 24, 1933, No. 29488. [Class 146 (ii).] In an envelope of the type provided with a pocket or compartment for the reception of the closing flap, the outer side flap 7 and that portion 10 of the inner side flap which will be adjacent to the envelope mouth are of substantially the same width as the envelope, the portion 10 of the inner flap being formed with a slit 12 adjacent to and parallel with the hinge line 13, thereby separating a comparatively wide tongue, of width approximating to that of the envelope, which is anchored at its base along a line parallel with the envelope mouth by adhesive 15 applied on the outer side flap 7. The inner side flap is of inverted L-shape comprising the upper portion 10 and a narrow portion 11.
Patent GB-262754-A (GB)
Title: Improvements in boiler furnaces
IPC: F23M5/08
Filed: 1926-11-22
Abstract: 262,754. International Combustion Engineering Co., Ltd., (Assignees of Lundgren, E.). Dec. 8, 1925, [Convention date]. Pulverulent - fuel furnaces. - The combustion chamber of a boiler furrace heated by pulverized fuel is subdivided by partition walls formed of water-tubes into a number of narrow flame ways each supplied with fuel by a separate burner. As shown in Figs. 1 and 2, the side walls of the combustion chamber are lined with watertubes 7 provided with fins 8 and connected to front and rear vertical headers communicating with the upper and lower parts of the drum 11. The partition walls f are formed of tubes 7a connected to front and rear headers arranged in the front and rear walls of the furnace and communicating with the drum 11. A water screen g composed of tubes 21 connected to horizontal headers 22, 23 in communication with the vertical headers 16, 17 is arranged above the ash-pit 15. A transverse baffle 20 extends downwardly from the roof of the combustion chamber to the lower ends of the partition walls f so as to cause the combustion products from the burners 26 to pass in a U-shape path to the uptake 27. Air for combustion is heated in the uptake at 30 and led to chambers formed by casings 28, 29 mounted on the front wall of the furnace and baffle wall 20 respectively, the air being admitted to the combustion chamber through ports 21, 32. Steam superheaters 33 and economizers 34 are arranged at the rear of the baffle 20.
Patent GB-1128986-A (GB)
Title: Magnetically controllable semiconductor resistance devices
IPC: G06G7/162
Filed: 1966-06-30
Abstract: 1,128,986. Multiplying; squaring circuits. SIEMENS SCHUCKERTWERKE A.G. 30 June, 1966 [1 July, 1965], No. 29530/66. Heading G4G. In an analogue computing circuit utilizing a pair of magnetically variable resistor elements 1, 2, the resistance of the element 1 is controlled to vary as a close approximation to the square of an input current I 0  fed partly to the other element 2 and partly to the winding 4 of an electromagnet 2, the latter magnetically controlling the resistance of the two elements. To reduce the error of the approximation the winding 4 and the element 2 have connected in series with them resistances 5 and 3 respectively, the element 2 has in series a variable inductor 6 to compensate excitation time constant, and to compensate for temperature dependence, the circuit includes an n.t.c. resistor 7. A multiplier circuit (Fig. 6, not shown) employs two of the above resistance control circuits connected in series, the two elements whose resistance varies as the square of the current I 0 , forming part of a Wheatstone Bridge circuit, completed by two known resistances. The control circuits also include pre-magnetization coils, one co-operating with each of the control circuit windings and each having a fixed current (I v ). The voltage developed across a measuring instrument (14) in the network is then proportional to the product of the control circuit input (I o ) and the input (I B ) to the Wheatstone Bridge circuit. To multiply three variables, the resistance of the elements in the Wheatstone Bridge circuit controlled by the pre-magnetization coils must also be made to vary proportionally as a close approximation to the square of the current (Iy) in those coils, which therefore include further magnetically controlled resistor elements in parallel with them (Fig. 7, not shown). The resulting voltage developed across the Wheatstone Bridge is then proportional to the product (I 0  . I B . I V ). A more sophisticated circuit (Fig. 8, not shown) incorporates inductances compensating the time constants of the windings and n.t.c. registers compensating for temperature variations.
Patent GB-225698-A (GB)
Title: Improvements in and relating to protective casings for vacuum-jacketed and other glass bottles
IPC: A47J41/02
Filed: 1923-11-23
Abstract: 225,698. Wandersleben, F. K., and Ostrowski &. Co. Nov. 23, 1923. Casings.-A vacuumjacketed or other glass bottle 2 is supported resiliently in an outer casing 1 by a spring- supported cap 8 at the base and a rubber or other elastic ring 6 mounted over the neck of the casing and embracing the neck 7 of the bottle. The casing neck has a screwthreaded part 3 to receive a drinking-cup and an inwardly sloping part 4 terminating in a rim 5 over which the rubber ring 6 is engaged. The spring support for the base cap 8 consists of spring wire loops 9 set obliquely to ensure lateral resilience, the ends of the wire being secured by struck-out tongues or portions of the base cap.