baber/WOPTO huggingface dataset:
Patent GB-405923-A (GB)
Title: Improvements in emergency-exit fastenings
IPC: E05B65/10
Filed: 1933-10-02
Abstract: 405,923. Emergency-exit fastenings. NEWMAN & SONS, Ltd., W., and SHEAD, H. C., 268, Hospital Street, Birmingham. Oct. 2, 1933, No. 27011. [Class 44.] The crush-bar 14 of an emergency-exit fastening is pivoted at one end about a vertical axis, and it operates the bolt mechanism through the agency of a bell crank lever, which has an angular and sliding movement in a plane extending longitudinally through the crush-bar. The bolts 1, 2 are operated by rotation of the disc 4 which has a radial slot 12. The bell-crank lever 7 is pivoted to lugs 9 on the casing 3 and the arm 10 of the lever rests in the slot 12. The other arm 13 carries rollers 20 at its outer end and these run inside the crush-bar behind the sides 19 of a T-shaped slot 18. When the bolts are in the operative position the parts are in the positions shown in Fig. 5, but when the end of the bar 14 is pressed forward as shown in Fig. 3, the arm 10 of the lever rotates the disc 4 to withdraw the bolts. In the unlocked position the arm 13 rests in the crush-bar and the lugs 9 enter the wide part of the T-shaped slot 18. An extension of the arm 13 has a hook 23 which engages a pivoted catch 24 to hold the parts in the unlocked position. A handle 29 is provided to effect release of the catch, or the screw 30 can be turned to keep the catch out of action. The apparatus may be applied to horizontal latches instead of vertical bolts, and the arm 13 may have a bifurcated end carrying a roller working on a strip of the crush-bar. In another form the arm of the bell crank lever is slotted and slides over a pin fixed in the crush-bar.
Patent GB-1393472-A (GB)
Title: Directly heated furnace with exhaust through the furnace hearth
IPC: F23L9/00
Filed: 1973-06-06
Abstract: 1393472 Bell-type furnaces ISOMAX INGENIOR-OG HANDELSAKTIESELSKAB 6 June 1973 [8 June 1972] 27024/73 Heading F4B An exhaust duct 6 extends through a bed of pebbles 4 forming the hearth of a bell-type furnace and is provided at one end with an exhaust fan 13 and, at the other end, with a valve 15 controlling the flow of secondary air. The duct 6 consists of channels 7, 8 separated by exhaust gaps 9. The valve 15 is controlled by a pressure sensor 18 which closes the valve when the pressure increases, and the fan is controlled by a thermostat 20 whereby the suction is increased when the exhaust temperature falls. Oil burners 10 are built into the hearth. In a modification, Fig. 3 (not shown), secondary air enters the hearth through holes in a duct arranged around the hearth. (For Figures see next column.)
Patent GB-727433-A (GB)
Title: Improvements in or relating to a pulse sharpening circuit
IPC: H03K3/26
Filed: 1952-10-28
Abstract: 727,433. Semi-conductor circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 28, 1952 [Dec. 21, 1951], No. 27057/52. Class 40 (6). A pulse sharpening circuit comprises an inductor and rectifier so connected as to normally pass current which is interrupted by the application of an input pulse to produce a sharpened output pulse from a semi-conductor device which responds to the back E.M.F. produced across the inductor due to the cessation of current flow through it. Fig. 1 shows a pulse sharpening circuit in which in between positive input pulses 30 current I flows through inductor 10, resistor 12 and rectifier 14, the transistor 20 being biased negatively at its emitter e by this current flow so that a minimum collector current flows. When a positive input pulse 30 is applied the current flow I through inductor 10 ceases and the positive back E.M.F. produced at emitter e allows collector current to flow and a sharpened positive output pulse to be produced at output 22 from collector c. The effective time-constant for inductor 10 is L/Re where L is the value of the inductance and Re is the effective forward-direction emitter resistance of transistor 20. The transistor preferably has an input characteristic, which is zero or negative in shape over at least part of its operating range so that the output pulse is sharpened by the resultant regenerative effect. In a modification, Fig. 2 (not shown), a bias battery in series with the inductor ensures normal current flow through it and the transistor circuit is given the desired negative input impedance over part of its operating range by the addition of a resistor in the base circuit. The sharpened output pulse is generated with negative polarity across the base resistor and with positive polarity at the collector.
Patent GB-380266-A (GB)
Title: Improvements in vertical index cards
IPC: B42F17/00
Filed: 1931-09-29
Abstract: 380,266. Card indexes. MANN, A. and COPELAND-CHATTERSON CO., Ltd., Cope-Chat Works, Dudbridge, Stroud, Gloucestershire. Sept. 29, 1931, No. 27105. [Classes 16 and 146 (i).] In a vertical card index comprising cards of successively increasing height so that a projecting strip is exposed at the upper edge of each card, a printed line or other indication is provided on each card adjacent to the projecting strip so that it is concealed from view by the next card of the group, but is exposed to view if that card is missing. The index may comprise sub-groups of cards of the same height and with projecting tabs spaced laterally. In the arrangement illustrated, each card is provided with a printed line c and also with spaced divisions h containing numbers, and the projecting strips b are marked with corresponding numbers in groups of ten ; an incorrectly placed card is detected by the lateral displacement of its indication number, and a missing card by exposure of the printed line and numbers. To detect reversal of a card, a strip at the bottom edge of each card may be distinctively marked by shading or otherwise.
Patent GB-226644-A (GB)
Title: Improved means for controlling the tension and delivery of cloth when in motion, and particularly useful when applied to machines in which the pile of weft pile fabrics is cut
IPC: D06C3/00
Filed: 1923-10-30
Abstract: 226,644. Havannah Mills Co., and Roger, G. Oct. 30, 1923. Pile, cutting.-To control the tension of cloth in motion, in pile cutting machines for example, the cloth b passes round a cloth roller on a shaft furnished with a friction disc d driven by a friction wheel h splined on a driven shaft e. The cloth passes around a rod or roller &c. n on a lever m, m<1> connected by a link k to a collar h<2>, which is not splined on the shaft e but can move the boss of the wheel b longitudinally, so that as the tension of the cloth varies and the lever m, m<1> oscillates, the friction wheel is moved to vary the speed of the friction disc d. The cloth also passes around threaded rods &c. s adjustably secured in slotted brackets. A disc u, at each end of one of the rods &c. s carries a jockey rod v the position of which can be varied. The cloth roller may be situated behind the drag roller of a pile cutting machine, and the shaft e may be in gear connection with the drag roller.
Patent GB-442560-A (GB)
Title: Improvements in electrical power systems and control arrangements therefor
IPC: H02P7/34
Filed: 1934-09-20
Abstract: 442,560. Electricity supply. EASTWOOD, F. A., 46A, Poplar Grove, Brooklands, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Sept. 20, 1934, No. 27121. [Class 38 (iv)] [See also Group XXXVII] Selecting machines in service.-In a system in which power is supplied to one or more motors M1, M2, ... from either of two generators D, B, the change-over is effected by switching means X, F, which insert the new generator in series with the old generator and the load, and subsequently cut out the old generator, and excitation control means T are provided whereby the excitation of the old generator is reduced and that of the new generator correspondingly increased whilst they are connected in series, the switching means and excitation control means being actuated from a common control, and their movements co-ordinated. In substituting a larger generator B for a smaller generator D a moving member T is progressively raised and acts first on potentiometer resistance R2 to increase the excitation of the generator D. Further movement of the member T changes over the switch F to its upper contact to insert the two generators in series, and then, by acting on a further potentiometer R1, reduces the excitation of the generator D and increases that of the generator B. When its voltage is negligible the generator D is cut out by the closure of contacts X effected by further movement of the member T. Continued movement of the member T over potentiometer resistance R3 increases the voltage of the generator B. The sequence of operations is reversed to change from generator B to generator D. The switch F closes its upper contacts before it opens its lower ones, and a switch X1, operated with the member T, opens the circuit of the field of the generator D simultaneously, with or shortly before, the closure of the contacts X. The control apparatus may be manually actuated or operated by power.
Patent GB-338254-A (GB)
Title: Improvements relating to the manufacture of tennis and other racquets
IPC: B23Q35/02
Filed: 1929-09-06
Abstract: 338,254. Pritchard, A., and Monks, C. Sept. 6, 1929. Drilling - machines. - A device for drilling the stringing holes in the frames .of tennis or other rackets comprises means for supporting the frame and for moving the frame in front of a drill so that the holes are drilled successively with the required longitudinal spacing and at the correct lateral distances from the sides of the frame. The fixed drill 5 is carried on a spindle 3 driven by a belt 8 from an electric motor 7 and is fed against the resistance of a spring 12 by means of a pedal 10. The drill projects through a slot in an adjustably inclined table 13. The racket frame is secured in a jig consisting of spaced side members 17 one end of the jig consisting of a pair of pivoted sections 18 locked together by catches 20. Centring of the frame in the jig is effected by means of clamps 21 actuated by screws 22. The inside edge of each side member of the jig is notched at 23 and direction lines 23a are marked to indicate the line of the required holes. In operation the jig with its frame is placed on the table 13 so as to encircle the drill, one of the notches 23 is engaged with a spring finger 24 and the jig is pushed forward until the inside face of the frame engages a stop 25. The hole is then drilled, the drill withdrawn, and the frame moved round step by step by hand to position successive notches against the finger 24 for successive drilling operations. After drilling one series of holes in the frame the jig is turned over and the remaining holes drilled. In a modification the means for determining the spacing of the holes consists of a head 26 having a number of pins 29 arranged at different distances apart and adjusted radially by a conical central member. The head is rotatable about a pivot carried by a platform 28 which is arranged at an angle to the drill axis and is secured to the upper surfaces of the table 13. In operation the drill frame with the jig is positioned to encircle the drill and a central mark on the frame is brought into engagement at a point just above the drill with the corresponding pin on the head. A hole is then drilled and the frame then rotated until the next pin or the head is brought into correct relationship with the drill point, these operations being repeated until all the holes are drilled.
Patent GB-682316-A (GB)
Title: Process for producing cast iron
IPC: C21B11/02
Filed: 1948-10-19
Abstract: 682,316. Extracting iron; extracting and refining metals. ERIM. Oct. 19, 1948 [Oct. 30, 1947], No. 27148/48. Classes 72 and 82(i) A method of producing high grade castiron comprises carbonizing an agglomerate of carbon and ferrous materials in a furnace by the action of a reducing gas heated to a high temperature and blowing a mixture of scrap iron and the carbonized agglomerate in a separate vertical smelting furnace of low height with an oxygen-containing gas heated to 400- 600‹C. The carbon and ferrous material, which may be iron ore or shavings, are fed into the reducing furnace A at 1 and are heated by means of hot oxygencontaining gas, injected by tubes 3, which causes partial combustion of the ascending gases. Reducing 'gases, i.e. exhaust gases from the smelting furnace B, are fed in at 5 and 8, further heating being caused by tubes 6 of refractory alloy which are heated by combustion of a bleed from the reducing gases. The reduced agglomerate, discharged at 9, is then mixed with scrap iron and, if desired, a flux and introduced into the smelting furnace B where it is further reduced and melted by an oxygen-containing gas heated to a temperature of 400-600‹C. and introduced through tuyeres 13. This gas may be air, air and oxygen, oxygen with steam or oxygen-containing gas and fuel oil, and may be preheated by exhaust gas from the smelting furnace. If a relatively high proportion of scrap in relation to the carbonized agglomerates is charged into the smelting furnace, an auxiliary fuel, comprising coke obtained from an exterior source or by prior carbonization of coal in the reducing furnace, may be added to the charge. The Specification as open to inspection under Sect. 91, refers also to the use of the apparatus for the reduction of oxides of Zn, Ni, Co, Mn and Cr or complex ores, e.g. of Zn, Pb, Cu, Sn, Au and Ag. This subject-matter does not appear in the Specification as accepted.
Patent GB-539385-A (GB)
Title: An improved process for the conversion of hydrocarbons
IPC: B01J21/08
Filed: 1939-10-04
Abstract: 539.385. Catalysts; cracking hydrocarbons. STANDARD OIL CO. Oct. 4, 1939, No. 27219. Convention date. Dec. 31, 1938. [Classes 1 (i) and 32] A catalyst for cracking hydrocarbons consists of silica gel which has been treated with a thorium salt and dried, whereby a thin coating of thorium compound is applied to the internal pore surface of the gel. The deposition is effected in acid solution. Heavy hydrocarbon oils are converted into gasoline by subjecting them in vapour phase to the action of the catalyst at 700-1050F.
Patent GB-392419-A (GB)
Title: Control device for ignition timers for internal combustion engines
IPC: F02P5/07
Filed: 1932-10-01
Abstract: 392,419. Ignition timing. MALLORY RESEARCH CO., 1742, Nicholas Building, Toledo, Ohio, U.S.A. Oct. 1, 1932, No. 27330. Convention date, Oct. 12, 1931. [Class 7 (iv).] When the throttle is closed and the engine is idling, the suction in the induction pipe applies a brake 26 to the edge of the plate 16 carrying the inteirupter cam and retains the cam in the retarded position against any action of the centrifugal governor 18 or other advancing mechanism. In a modification the throttle lever is coupled to an arm which bears directly on the end of the brake rod.
Patent GB-608867-A (GB)
Title: Improvements in or relating to level responsive control device
IPC: F22D5/14
Filed: 1945-10-18
Abstract: 608,867. Feedwater controlling. NORTHERN EQUIPMENT CO. Oct. 18, 1945, No. 27425. Convention date, Jan. 15. [Class 123(ii)] [Also in Group XVIII] In a feed regulator of the kind in which the differential expansion of tubes in free communication with the boiler, actuates switches controlling alarms or feed pipe circuits, a conduit or thermostatic expansion tube is formed with three straight portions 29, 30, 31, rigidly clamped by brackets 28 at their right hand ends, but free to expand or contract in the direction of their free ends. The straight portions of conduit are pivotally connected at 37 to a pair of T-shaped levers 33, 34, held under tension by spring loaded devices 22, 26. At normal water level tube portions 29, 30 are full of steam, changes in operating pressure causing the tubes to react equally. Water rising into tube portion 30 causing contraction thereof causes an upward movement of arm 33 actuating a switch 41 to sound a high level alarm. Water draining from tube portion 31 causing expansion thereof results in a downward movement of the arm 34 actuating a switch 42 to sound a low level alarm. An alternative arrangement is shown in Fig. 8 where the straight tube portions 53, 54, 55, are fitted with fluid pressure generators connected to fluid pressure motors 56, 57, which actuate switches 49. The switches 41, 42, in either arrangement may be connected to electrical relays associated with the feed water pump motor and provide automatic control thereof. When the boiler is withdrawn from use the alarm or control circuit is broken by a switch 49. Specification 331,245 [Class 123(ii)], is referred to.
Patent GB-205334-A (GB)
Title: Improvements in and relating to brakes
IPC: F16D51/42
Filed: 1922-10-10
Abstract: 205,334. Brown, D. Oct. 10, 1922 Blocks acting on drums.-In brakes of the kind comprising one or more pairs of oppositely-disposed brake shoes adapted to be moved into engagement with the drum by the partial rotation of a central ring or member to which the shoes are connected by links pivoted to the shoes and to opposite sides of the ring, the brake shoes f, coacting with stops c, are free to adjust themselves to the internal periphery of the drum d about pins q, disposed centrally of the shoes, which form bearings for the outer ends of the links j. When two pairs of shoes are provided, each pair may be independently operated by having two rings k, m, Fig. 2, adapted for rotation by fingers s carried by shafts t, u, the return movement of the rings being limited by a stop x. When the links are connected to the pins q by half-bearings p, leaf springs g carried by the stops c and bearing on pins h are used to retract the shoes, but if the shoes and links are positively connected, the springs may be dispensed with, or both internal and external springs may be provided. The free inner ends of the stops c may be strengthened by a connecting-ring.
Patent GB-1068608-A (GB)
Title: Improvements in or relating to oil burners
IPC: F23D5/00
Filed: 1964-07-03
Abstract: 1,068,608. Burners. R. KIENLE. July 3, 1964 [July 3, 1963], No. 27482/64. Heading F4T. A burner bowl has a cross-channel 12 leading from the oil inlet 11 to a circumferential groove 13a, 13b and the igniter 14 is positioned over the channel 12. The fuel is conveyed round a pipe 21 under the burner bowl to preheat the fuel and an overflow tube 23 serves to cut off' the fuel supply in the event of ignition not taking place.
Patent GB-963736-A (GB)
Title: Improvements in rotary fluid pumps of the n and n+1 type
Inventor: MERRITT HENRY EDWARD
IPC: F04C2/10
Filed: 1959-08-12
Abstract: 963,736. Rotary pumps. MERRITT & CO. (ENGINEERING) Ltd. Aug. 10, 1960 [Aug. 12, 1959], No. 27523/59. Heading F1F. The clearance 6 between the outer rotor 2 and the casing 3 of an n and n + 1 lobe pump, adjacent the high pressure outlet communicates with the high pressure chamber. The clearance communicates with the high pressure chamber by radial bores 12a or by a groove 20 connected to the high pressure port 5 and an axial channel 21 in the casing. The communication may be by grooves in the end faces of the outer rotor 2. The clearance may be augmented by additional passages in the periphery of the rotor.
Patent GB-232135-A (GB)
Title: Improvements in or relating to loose leaf binders
IPC: B42F13/12
Filed: 1924-11-18
Abstract: 232,135. Moore, C. H. Nov. 18, 1924. Post files; covers; fastenings.-In a loose-leaf binder of the kind in which follower posts G for holding temporarily removed leaves are used in conjunction with fixed filing-posts F, the posts G are supported in sockets H formed in the binder back. The posts G are mounted on a cross piece G<1>, which is slotted so that the recessed ends F<1> of the posts F can protrude therethrough and be locked in sockets J by a spring slide E. The sockets H, J may be formed as rivets which secure the binder cover. to the inner supporting plates.
Patent GB-284573-A (GB)
Title: Improvements in surgical forceps and like surgical instruments
IPC: A61B17/28
Filed: 1927-10-17
Abstract: 284,573. Junemann, A. Oct. 17, 1927. Obstetric and uterine appliances.-A device for preventing haemorrhage during surgical operations comprises two pairs of clamping jaws 1, 2, each pair having handles 5 and being individually adjustable, the two pairs being connected rotatably, by pivotal parts secured thereto, for bringing the edges of the wound together, and releasably to allow withdrawal. In the construction described, for use in uterine operations, the jaws 1, 2, which are curved as required, form part of forceps and have parts 4 which extend backwards to grip the blood vessels beyond the end of the incision. The forceps are each locked in position by a notched curved bar 7 on one handle 5 engaging a tooth 8 on the other handle. The forceps are each provided with a threaded pin &c. 9 which can be locked by a nut 10 in a slotted member 11 so that they can be secured together in any desired relative position.
Patent GB-310459-A (GB)
Title: Improvements in or relating to fluid power transmission
IPC: F15B11/16
Filed: 1928-09-26
Abstract: 310,459. Minganti, G. April 26, 1928, [Convention date]. Hydraulic transmission of power; liquidpressure engines.-Means for driving rotary and reciprocating parts of machines comprises pumps A, B, Fig. 1, on a common driving shaft, the pump B having its output varied by the adjustment of its eccentric 2 by a slidable wedge member 3. The pump A of constant output is connected to the suction chamber 5 of the pump B and to all parts of the system. The pump B has an annular distributing valve 10 operated by an eccentric 11, and delivers through a slide valve D to a motor E, the pistons of which operate on a rocking disc 15 with central pin 16 driving the shaft 13<1>. The pump A is connected through a slide valve F and throttling valves 17 to cylinders G, G'. The valves D, Fare operated by levers 22 and 20, Fig. 3, respectively; the operation may be independent or collective, dependent on the position of a coupling member 19. In either case, the lever 22 is lifted to set the motor E in operation, and is held raised by engagement with a catch lever 23. When the levers are coupled together, pistons in the cylinders G, G' are operated simultaneously with the motor E. When the pistons have completed their strokes, the rise in pressure acts through pipes H, H<1> to move valves 26 and then operates a piston 28 to disengage the catch lever 23, the lever 22 then returning to its initial position. Pressure relief valves 30, 31 are provided.