baber/WOPTO huggingface dataset:
Patent GB-572073-A (GB)
Title: Improvements in typewriters and the like
IPC: B41J29/26
Filed: 1944-02-29
Abstract: 572,073. Typewriters &c. SCHEMBRI, C. Feb. 29, 1944, No. 3739. [Class 100 (iv)] A typewriter or like keyboard machine, e.g. type-setting machines, has means whereby a selected key can be operated in a repeat manner, e.g. for underlining or cancelling, by the movement of a member common to all the keys from which repetition operation may be required. For this purpose, a rack 1 mounted on the carriage may be raised to engage a pinion 4 forming part of gearing 7 ... 15 so as to rotate a shaft 15 carrying cams 15a, 15b, when the carriage is moved endwise. Each key-lever 16 is provided with a projection 24 which is engaged by the cams when a key is depressed so that by keeping the key depressed and sliding the carriage with the rack 1 raised, the cams cause repeated operation of the key. The rack 1 is normally held in depressed position by springs 17 attached to pins 22 on the rack which pass through cam slots 23 in a fixed plate 18. A lever 18a or sliding member mounted on the carriage adjacent to the usual roller-knob 28 is provided to raise the rack 1. The shaft 15 of the cams 15a, 15b has radial fingers riding between two spring-pressed blocks and so situated relatively to the cams, that when the shaft 15 is not being driven, they are held by the blocks with the cams in an inoperative position.
Patent GB-729554-A (GB)
Title: Improvements relating to space-heating radiators
IPC: F28D1/02
Filed: 1952-02-13
Abstract: 729,554. Air-heating radiators for buildings. SOC. ITALIANA RADIATORI TIRAGGIO ATTIVATO. Feb. 13, 1952 [Feb. 13, 1951], No. 3875/52. Classes 64 (2) and 64 (3). Ribs 6 and fins 3 on the sections of a radiator form air passages 5 which increase in crosssectional area towards the air inlet and outlet openings 7 and 8. Hot water or steam passage ways 2 are interconnected by nipples 15. The ribs 6 are interrupted at intervals to form air chambers 9. Apertures 20 may be provided in the sections. Intermediate sections, Fig. 6, may be omitted and two end sections (one is shown in Fig. 4) used alone if a small radiator is required.
Patent GB-538239-A (GB)
Title: Improvements relating to thermal responsive switches
IPC: H05B41/06
Filed: 1940-03-01
Abstract: 538,239. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd., RUFF, H. R., and SCOTT, W. J. March 1, 1940, No. 3877. [Class 38 (v)] [Also in Group XXXV] A movable rod-like contact D, borne by a bimetallic strip B, engages a rod-like contact J carried cross-wise on a support K, at a point M which is offset from the axis of the support K, so as to twist it slightly to reduce, any tendency to welding of the contacts. The strip B may be of the form described in Specification 532,490 with loop F about a heater wire G. The support K may also be bimetallic, and the upper part of the strip B may be twisted through 180 degrees, as at H, both with the intention of compensating for variations of ambient temperature.
Patent GB-1493872-A (GB)
Title: Fuel and air induction system for an internal combustion engine
IPC: F02M35/10
Filed: 1975-01-29
Abstract: 1493872 Fuel induction systems ETHYL CORP 29 Jan 1975 [6 Feb 1974 20 Aug 1974 23 Sept 1974] 3877/75 Heading FIB A fuel induction system for a spark ignited I.C. engine comprises a mixing chamber 6 which receives air/fuel mixture from the primary choke 3 of a carburetter, and reverses its direction of flow, to reduce air/fuel maldistribution, prior to it being distributed to the combustion chambers via intake runners 27 and pipes 28. An engine coolant jacket 14 partially surrounds mixing chamber 6. During periods of high engine load, secondary choke 20 is opened by throttle valve 22 to allow extra air/fuel mixture to flow into intake runner 27. The system may be adapted for use with a V-type multi-cylinder engine by incorporating a four choke carburetter (two primary and two secondary chokes) feeding two sets of intake runners, Figs. 2, 3 and 4 (not shown).
Patent GB-419436-A (GB)
Title: Improvements in and relating to the fractioning of distillation products or substances in a volatile state
IPC: B01D1/30
Filed: 1933-02-09
Abstract: <PICT:0419436/III/1> In the distillation of wine and the like in a still A filters comprising discs B of copper trellis and cloth gas filters C are placed in the path of the vapours.
Patent GB-696535-A (GB)
Title: Improvements in or relating to electrical logging of earth formations traversed by abore hole
IPC: G01V3/24
Filed: 1952-02-14
Abstract: 696,535. Electric tests and measurements. SCHLUMBERGER OVERSEAS, SOC. ANON. Feb. 14, 1952 [March 7, 1951], No. 3987/52. Class 37. Apparatus for determining the resistivity of the wall of a bore hole comprises an electrode in the bore hole in contact with the wall from which current is made to flow laterally into the wall by establishing a suitable electric field with auxiliary electrodes, the potential difference between the current electrode and a reference point being indicative of the resistivity of the local zone of the wall. In one embodiment (Figs. 1, 2), the electrode assembly comprises a central current electrode A0 surrounded by potential electrodes M1, M1<SP>1</SP> all embedded in an insulating cushion 19 pressed against the wall of the bore hole. An amplifier 29 receives the potential difference between electrodes M1, M1<SP>1</SP> and feeds a dependent current into an auxiliary current electrode A1 to reduce the field around electrodes M1, M1<SP>1</SP> and hence reduce this P.D. to zero. A recording voltmeter 36 indicates the potential difference between one of the electrodes M1, M1<SP>1</SP> and earth, and hence indicates the resistivity of the earth formation in the vicinity of the electrode assembly. Since the current flow from A0 is restricted to lateral flow, the effect of any mud cake on the wall at permeable strata is negligible. In a modification, Fig. 3 (not shown), electrodes A0, M1 may be combined, and also M1<SP>1</SP>, Al to form a two-electrode device. The current supply to electrode A0 should preferably be low frequency A.C. to avoid polarization effects. In another modification the potential electrode is fed from the same power source as the current electrode AO through a series resistance, one voltmeter measuring the drop across the resistance and another measuring the P.D. between AO and earth, the ratio of these readings being indicative of the resistivity of the earth. In another embodiment (Fig. 5), the current electrode A0 is fed with A.C. at two frequencies f1, f2, the field of frequency f2 in the neighbourhood of the potential electrodes M1, M1<SP>1</SP>, being reduced to zero by feedback through filter 52 and amplifier 53, and the P.D. between one potential electrode and earth is measured by a meter 55, while the uncontrolled field of frequency f1 gives a P.D. measured by a meter 59. Thus the former is not affected by mud cake on the wall, and the latter is, and a comparison of the readings of meters 55, 59 against depth indicates the presence or absence of mud cake, and therefore the presence or absence of permeable earth strata. Specification 683,651 is referred to.
Patent GB-413046-A (GB)
Title: Improvements in or connected with sockets used for electrical connections
IPC: H01R13/415
Filed: 1933-02-09
Abstract: 413,046. Thermionic valve holders. REID, L. H., 28, Victoria Street, London. Feb. 9, 1933, Nos. 3989 and 9586. [Class 39 (i).] A socket for a valve pin or other plug is engaged on the outside by a member provided with a tongue that extends through a slot into and along the interior of the socket. As shown in Fig. 3 the member is in the form of a ring 3 held between a collar 1<a> on the socket and the support B, and the tongue is passed into the socket through a slit 2. A second tongue 3<a> serves as a soldering tag. In modifications the socket instead of being slit may be apertured as at 2, Fig. 14, more than one tongue entering the socket may be provided as in Fig. 16, the soldering tag may be replaced by a screw and nut terminal at the lower end of the socket or by a soldering anchorage, and the tongue may be shaped or curved longitudinally to increase its resilient action. The socket may be secured to its support by burring over as shown or by a nut and threaded extension of the socket.
Patent GB-175289-A (GB)
Title: Improvements in jigging conveyors
IPC: B65G27/00
Filed: 1922-02-10
Abstract: 175,289. B÷hm, C. Feb. 10, 1921, [Convention date]. Jigging conveyers.- In order that jigging conveyers used in mines may readily be shifted laterally, the trough is made of light sheet metal in short sections detachably connected to and supported by a frame composed of stiffened and detachably connected members. Each section 19 of the trough is half the length of a section of the frame 1 and is formed at one end with a flange 21 to receive the end of the adjacent section. A loop 20 riveted to the bottom of each section 19 is passed over a tongue 16 secured to a plate 17 connecting the angle-irons 1 which form the side members of the frame. The angleirons 1 are held together by plates 2 and at one end of each section the horizontal arms of the angle-irons are covered by a plate 4 and the vertical arms are connected to a trough-shaped member 5. A bolt 10 having a head at each end can be moved up and down in the member 5 but cannot be detached therefrom. At the other end of each section the vertical arms are connected bv a trough-shaped member 7 having secured thereto a pin 8 which projects beyond the end of the frame, and fits between the walls of the member 5 of the next section. The outer end of the pin has a groove 8<11> to receive the neck of the bolt 10 and a projection 8<1> which prevents the uncoupling of the sections until the bolt has been raised to the position shown in dotted lines in Fig. 7. Bearings 18 on the underside of each section are placed on rollers to facilitate transfer. The angle-irons may be replaced by tubes used for conveying compressed air or water.
Patent GB-341299-A (GB)
Title: A process for preparing high percentage calcium cyanamide
IPC: C01C3/18
Filed: 1930-02-06
Abstract: A high percentage calcium cyanamide is prepared from calcium carbamate by subjecting it, or the calcium cyanamide-containing product obtained by heating calcium carbamate in nitrogen, to treatment at 600-800 DEG  C. with ammonia and carbon dioxide and/or carbon monoxide.  The waste ammonia-carbon dioxide containing gases also produced may be converted into ammonium carbamate from which further calcium carbamate is obtained.  According to examples, (1) calcium carbamate is heated in a mixture of ammonia and carbon monoxide at 600-750 DEG  C., a product rich in calcium cyanamide being obtained; (2) dehydrated calcium carbamate is heated in nitrogen and the resulting cyanamide-lime mixture is heated in a mixture of ammonia and carbon monoxide at 700 DEG  C.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the production of calcium carbamate by the reaction of calcium compounds such as the oxide, hydroxide, chloride or nitrate with aqueous ammoniacal solutions of ammonium carbamate, the water content of which is low and which can be saturated with ammonia and carbon dioxide by cooling to temperatures below 30-40 DEG  C., for example -8 to -10 DEG  C., and/or applying pressure, or can be saturated with ammonium carbamate by adding the solid salt.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1528553-A (GB)
Title: Compressors
IPC: F04B35/04
Filed: 1977-02-01
Abstract: 1528553 Cooling reciprocating compressors E BECKER 1 Feb 1977 [28 April 1976] 04092/77 Heading F1N A single or multi-cylinder air compressor 3 drivingly coupled to a motor 2 via a belt drive 4 is cooled by a fan wheel 7, the position of the motor.2 being arranged so that the fan wheel 7 is located between the motor and the cylinder(s) 5. An air guiding device 25, preferably including guide fins for directing the air on to the cylinder(s) is provided within a protective cowling 27 for the fan wheel and belt drive. The motor is mounted on a bracket 10 having a plate 12 clamped to a housing 18 of the compressor by clamping shoes 21. Each shoe 21 is fitted over a stud (19) mounted on the housing 18 and held in its clamping position by a nut (22). The studs (19) on either side of the plate 12 together form a guide therefor, whereby the bracket 10 may be slid between the studs during adjustment of the belt tension. An adjustable screw stop 24 on the bracket 10 aids location of the latter in its guide.
Patent GB-401540-A (GB)
Title: Improvements relating to planetary spindle internal grinding machines
IPC: B23Q1/48
Filed: 1933-02-10
Abstract: 401,540. Internal-grinding machines. KELLENBERGER, L., (trading as KELLENBERGER & CO., L.), 28, Heiligkreuz strasse, St. Gallen, Switzerland. Feb. 10, 1933, No. 4098. Convention date, Feb. 25, 1932. [Class 60.] In a planetary spindle-grinding machine for the internal surfaces of cylinders &c. the grinding-spindle g is mounted for eccentric adjustment within a rotatable hollow shaft c journalled in a sleeve b secured to a head a. The spindle g is carried by a bush h having an enlarged end i engaging an inclined guide d on the sleeve c, and the bush h also is secured to a guide k engaging an inclined guideway e in an enlarged bush f keyed to the shaft c. By axial movement of the spindle g and bush h by gearing g .. v, the spindle is adjusted radially. Lubricant is excluded by means of a protecting sleeve m, provided on the sleeve b.
Patent GB-305595-A (GB)
IPC: F41A5/08
Filed: 1928-02-21
Abstract: 305,595. Soc. Italiana E. Breda per Costruzioni Meccaniche. March 5, 1927, [Convention date]. Divided on 286,598. Machine guns. - Relates to machine guns in which a cartridge belt is fed by a lever rocked by the reciprocation of the breech-bolt, for example to machine guns of the kind described in Specification 286,598. According to the invention, a lever 6 is interposed between the breechbolt 7 and the rocking lever 5, which operates the cartridge-feed mechanism, thereby avoiding a long connection between the rocking lever and the breech-bolt. The intermediate lever 6 is wing-shaped and mounted on a pivot 41 attached to the breech casing 1. A lug 42 on the intermediate lever 6 fits into a known form of groove in the breech-bolt 7, and a projection 40 at the end of the rocking lever 5 fits into a recess 6<1> in the intermediate lever 6.
Patent GB-1380370-A (GB)
Title: Carbamate pesticide
IPC: A01N47/24
Filed: 1973-01-26
Abstract: 1380370 Substituted carbamates and their use as pesticides SUMITOMO CHEMICAL CO Ltd 26 Jan 1973 [26 Jan 1972 7 March 1972] 4232/73 Heading C2C The invention comprises compounds of formula  wherein R is phenyl, an α-naphthyl radical or a group of formula in which R 3  and R 4  may be the same or different, each represents a C 1-4  alkyl, or a radical of formula  wherein each W, which may be the same or different, represents a C 1-4  alkyl, C 1-4  alkoxy group, C 1-4  alkylthio group, C 1-4  alkylamino group, halogen and nitro; J is an integer of 1 to 5, R 1  is C 1-5  alkyl, R 2  represents a C 1-12  alkyl group or an aralkyl of formula wherein Y is hydrogen, C 1-4  alkyl, C 1-4  alkoxy, C 1-4  alkylthio, halogen or nitro, I and m are integers of from 1 to 3, phenyl or substituted phenyl of formula wherein each Z which may be the same or different, represents a C 1-4  alkyl, C 1-4  alkoxy, C 1-4  alkylthio, halogen, nitro or trihalomethyl and n is an integer of 1 to 5. These compounds may be obtained by reacting a sulphinyl halide of formula X-SO-R 2 , wherein R 2  is as defined above, and X represents a halogen atom with an N-alkyl carbamic acid ester of formula R-O-CO-NH-R 1 , wherein R and R 1  are as defined above. Many compounds are specified. The invention also relates to a pesticidal composition which comprises as an active ingredient an effective amount of the carbamate compound according to the invention together with an inert carrier.
Patent GB-680189-A (GB)
Title: A clockwork toy vehicle
IPC: A63H17/395
Filed: 1951-02-22
Abstract: 680,189. Clockwork toys. ERNST, M. Feb. 22, 1951. No. 4290/51. Class 132 (iii). A clockwork toy vehicle, e.g. a model tank, adapted to move on two endless tracks, has on each side an arm 7 or 7<SP>1</SP> that can be moved into contact with the ground, by cam means driven by the clockwork mechanism, so as to lift the respective track and cause the vehicle to change direction. As shown, the arms 7, 71 are urged by springs 12 towards oppositely disposed cams 4, 4<SP>1</SP> mounted on the winding shaft 3 and are each provided with a steering lever 10 or 10<SP>1</SP> which projects through an aperture in the body. Both arms may be left under the influence of the cams, in which case the vehicle is lifted alternately at opposite sides and moves in a zig-zag course, or one of the arms may be held permanently on the ground, by engaging the lever 10 or 10<SP>1</SP> in a notch in the aperture, to cause the vehicle to travel in a circle.
Patent GB-708378-A (GB)
Title: Improvements in or relating to thermostatic control devices
Inventor: ESKIN SAMUEL GEORGE
IPC: H01H37/48
Filed: 1952-02-18
Abstract: 708,378. Temperature-responsive actuating-elements. ROBERTSHAW-FULTON CONTROLS CO. Feb. 18, 1952, No. 4299/52. Class 64(2) [Also in Group XXXVII] A temperature-responsive device comprises a casing 12 attachable to a heated surface, such as a hot-water tank or pipe, and a rod 16, of a material having a coefficient of expansion different from that of the casing, adjustably mounted at one end in the casing, the free end operating through snap-action means on a reciprocating member which engages means for controlling the temperature of the heated surface. The rod 16, of a material having a low expansion coefficient such as "Invar" (Registered Trade Mark). porcelain or silica, is screwed into the end wall of the casing 12 of, for example, aluminium. The free-end of the rod bears against one arm of a bell-crank lever 30, the other arm of which engages a pressure member 28 associated with' the rim of a snap-action disc 24 which operates through a rod 26 on an electric switch device housed in the insulated cover 38 of the casing. Fixed contacts 40, 42, arranged in pairs on terminals 44, 50, Fig. 3, are joined in turn by a bridge 54 on a leaf spring 56 biased to engage the contacts 42 in the inactive position shown in Fig. 2. A rise in temperature of the casing causes the pressure exerted by the rod 16 on the member 28 to be relieved and the upward snap of the disc 24 is transmitted through the rod 26 to an insulated plate 60 which is connected to the spring 56 and fulcrummed on an adjustable pin 70 to cause the bridge 54 to engage contacts 40 to cut out the heating-means. Cooling results in a downward snap of the disc to restore the parts to the position shown to switch in the heating-means. For setting-adjustments, the rod 16 can be rotated by means of a pointer 74 moving over a scale.
Patent GB-312902-A (GB)
Title: Improvements in the manufacture of diphenyl
IPC: C07C2/76
Filed: 1929-02-08
Abstract: 312,902. Federal Phosphorus Co., (Assignees of Scott, T. J). June 2, 1928, [Convention date]. Diphenyl.-Benzene or the product known commercially as benzol is converted into diphenyl bv heating in two stages. As shown, benzene is forced by a pump 62 into a coil 26 in a bath 16 of molten lead heated to 600-650‹ C., which is just below the temperature at which any diphenyl is formed. The gas bubbles up through the molten metal, through a pipe 32 to a pipe 27 in a bath 17 of molten metal heated to 750-800‹ C., the temperature at which diphenyl is formed. After bubbling up through the molten metal the vapour is led to water coolers 38 for condensation. Hydrogen formed passes away by a pipe 45.
Patent GB-493760-A (GB)
Title: Improvements in self-closing valves
IPC: F16K17/32
Filed: 1937-02-13
Abstract: 493,760. Self-closing valves. GUEST & CHRIMES, Ltd., and PARKIN, D. W. Feb. 13, 1937, No. 4351. [Class 135] A valve device adapted to close automatically in the event of the flow becoming abnormal comprises a sluice valve with parallel or wedge shaped doors, a stream-lined valve or a butterfly valve actuated by conduit pressure acting on a double-acting piston under the control of a pair of relay valves in turn controlled by a simple lift valve actuated by a float. The Boat 3 works in one branch of a mercury U-tube connected by pipes 20, 21 with the throat and full bore sections of a Venturi pipe in the main conduit. The opening side of the main piston is supplied with full bore pressure through a restricted orifice, said pressure being exhausted through a piston actuated relay valve 16. The connections between the valve closing side of the main piston and the main conduit or drain are controlled by a piston actuated shuttle-lift valve 15. The float 3 is coupled by an arm 7 with a shaft 9 carrying a second arm with an adjustable tappet adapted to engage a, bell-crank lever 12 linked to the control valve 13. When the flow becomes excessive the level in the branch of the U-tube containing the float falls causing the float to open the valve 13. This relieves the pressure on the actuating pistons of the two relay valves which move to connect the valve opening side of the main piston to atmosphere while connecting the valve closing side to full-bore pressure. As the float approaches its lowest position a valve 5 on the float spindle closes the connection between the pipe 21 and the U-tube while a valve 18 linked to the arm 7 vents the float chamber. The valve 18 may be replaced by a piston actuated valve. The main valve is reopened by manipulating the control valves by hand. Where the flow of fluid is controlled during resetting by a manually or mechanically operated valve at the downstream side of the hydraulically operated valve the valve 16 may be omitted..
Patent GB-305936-A (GB)
Title: Improvements relating to radiator heating systems for railway cars
IPC: B61D27/00
Filed: 1929-02-11
Abstract: 305,936. Vaper Car Heating Co., Inc., (Assignees of RusseL, E. A., Gold, M. J., and Biscayne Trust Co.). Feb. 11, 1928, [Convention date]. Heating vehicles; radiators. -A radiator system for heating railway cars is supplied through pipes having telescopic joints. Steam passes from the train pipe 4 through pipes 5 and 7 to a thermostatic control valve 8, and then through pipe 9 to the radiator system. Steam and condensate return through pipes 10, 11. The heating system consists of pipes A running longitudinally through the car, auxiliary heaters B, C at the ends of the car, and other units D, E for heating compartments at the ends of the car Distributing boxes F, G are provided, and comprise two chambers 18, 19, Fig. 2, into which the pipes 29, 15 are inserted through telescopic joints. These comprise a thimble 30 screwed into the box and provided with a packing gland 34 to make a tight joint with the pipe. The box F is supported by a bracket 20, Figs. 2 and 3, bolted to the floor at 22, and having a flange 23 with a vertical slot 24 to receive a rib 25 on the box F. The box is provided with lugs 26 which are secured to the flange 23 by bolts 27 passing through elongated holes 28. Vertical adjustment of the box F is thus permitted. The auxiliary radiators B, C, are in the form of loops of piping the ends of which are connected to the chambers 18, 19, and the radiators D, E also consist of loops of piping. Increased radiating effect is secured by means of radiating pins 44, and in a modification, Fig. 5, not shown, the radiators B, C, may comprise a group of four radiating pipes. The radiators B - - E, are short, and do not require telescopic joints.