baber/WOPTO huggingface dataset:
Patent GB-748144-A (GB)
Title: Improvements in light sensitive photographic materials and compounds for use therein
IPC: G03C1/35
Filed: 1953-05-27
Abstract: Compounds of the general formula <FORM:0748144/IV(a)/1> wherein Z represents the atoms to complete a heterocyclic nucleus of the benzthiazole series and R an acyl or thiocarbalkoxy group, are prepared by heating together compounds of one of the formul : <FORM:0748144/IV(a)/2> <FORM:0748144/IV(a)/3> wherein R1 and R2 each represent H or an acetyl or thiocarbalkoxy group, with a carboxylic anhydride. a -Acetylthio-N-(2-benzthiazolyl)-succinimide is prepared by boiling together 2 - (b  - carboxy - a  - thiolpropionamido)-benzthiazole and acetic anhydride, or by heating together the intermediate and propionic anhydride. a -Acetylthio-N-(6-ethoxy-2-benzthiazolyl) - succinimide, a  - thiocarbethoxythiol - N - (2 - benzthiazolyl) - succinimide, and a  - thiocarbo - n - octoxythiol - N - (2 - benzthiazolyl)-succinimide are similarly prepared.  Compounds of the first general formula, wherein R is an acetyl group, may also be prepared by heating a compound of the general formula: <FORM:0748144/IV(a)/4> with thioacetic acid. a -Acetylthio-N-(2-benzthiazolyl)-succinimide is also prepared by refluxing together N-(2-benzthiazolyl)-maleinimide, thioacetic acid and ethanol.  a -Acetylthio - N - (6 - ethoxy - 2 - benzthiazolyl) - succinimide and a -propionylthio-N-(2-benzthiazolyl)-succinimide are similarly prepared.  Compounds of the first general formula, wherein R is a thiocarbalkoxy group, are prepared by heating compounds of the general formula IV with a compound of the general formula: <FORM:0748144/IV(a)/5> wherein R3 is alkyl and M an alkali metal, with a sufficient amount of acid to liberate the free acid of the latter compound. a -Thiocarbethoxythiol - N - (2 - benzthiazolyl) - succinimide also is prepared by heating together N-(2-benzthiazolyl)-maleinimide, potassium ethylxanthate, and acetic acid.  N - 2 - (Benzthiazolyl) - maleinimide is prepared by refluxing together 2-(b -carboxyacrylamido)-benzthiazole and acetic anhydride. N - 2 - (6 - Ethoxy - 2 - benzthiazolyl) - maleinimide is similarly prepared.  Specifications 738,675 and 738,676 are referred to.
Patent GB-878012-A (GB)
Title: Improvements in or relating to adjustable inductors
Inventor: GREGORY WILLIAM LANGDALE
IPC: H01F29/10
Filed: 1957-05-10
Abstract: 878,012. Inductors. PLESSEY CO. Ltd. May 12, 1958 [May 10, 1957], No. 14876/57. Class 38 (2). A variable inductor with its core in two parts 3, 4 has its coil 1 placed against member 4 and separated from member 3 by rubber or other resilient pads 8. By tightening nuts 7 on screws 6 in bores in the outer legs of the core parts against the resilient action of the resilient pads the air gap 5 can be varied. The variable pressure may be applied by a single screw acting between one core part and a yoke attached to two guide bolts.
Patent GB-496291-A (GB)
Title: Improvements in or relating to the performing of a trimming operation on a heelward portion of a sole of a shoe
IPC: A43D8/34
Filed: 1937-05-29
Abstract: 496,291. Heel-seat fitting-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., and HAZELTON, G. May 29, 1937, No. 14944. [Class 17 (i)] Relates to machines of the kind described in Specifications 306,192, 310,822, and 331,934, [all in Class 17 (i)], and consists in modifications to fit this type of machine for operating on a rubber sole 1 adhesively secured to the shoe right up to the heel end of the sole. The bevelling knives 13 are inclined to each other and operated as described in the prior Specifications, as are also the shouldering knives 15. For the crease-plates described in the prior Specifications, plates 17 are substituted, having cut-away portions 19 to clear the end of the sole, the rear ends of the plates engaging the lasted over margin of the upper behind the sole. These plates co-operate with a sole support 31 having a pair of projections 33 underlying a curved bar 27 firmly engaging the sole and carried from the frame of the machine by arms 29. As the chip intended to be removed by the knives is stuck to the sole, a pair of knives 21 is provided, preferably arranged to leave a thin layer of sole material stuck to the insole.
Patent GB-333302-A (GB)
Title: A new or improved road vehicle more especially for use as a luggage or equipment trailer for motor road vehicles
IPC: B62D63/06
Filed: 1929-05-14
Abstract: 333,302. Dickson, D. B. May 14, 1929. Vehicles with removable bodies; trailer vehicles.-A road vehicle more especially for use as a luggage or equipment trailer vehicle comprises a wheel 2 and an upper entirely closed box-like part 4 which rests on the lower part 1 and may be removed therefrom. The part 4 rests on the lower part 1 and is positioned thereon by feet 7 and secured by any suitable fastenings 10. The upper part is provided with a lid and when the vehicle is used for transporting camping outfits the lower part houses the tent and such equipment as may be wet while the upper part 4 houses bedding &c. which must be kept dry. The wheels 2 are mounted in rectangular tubular frames 12 pivoted at 13 to a bracket secured to and projecting from the lower part 1. The rear end of the frame 12 is provided with a pin 16 passing through an aperture in a bracket 14 secured to and projecting from the lower part 1. The pin 16 is provided with a spring 17 in compression.
Patent GB-150456-A (GB)
Title: Improvements relating to oil lamps
IPC: F21V37/02
Filed: 1919-06-16
Abstract: 150,456. Oldfield, J. & R., and Oldfield, R. A. June 16, 1919. Vehicular lanterns.-In carriage, automobile, or other lamps fitted with a double burner cone, the outer cone is permanently or removably secured in an aperture in the body of the lamp. Air drawn in at the hood 6 is heated by passing between the body 8 and the tubular reflector 7 to a compartment 10 above the oil reservoir 11. The outer cone 1 is secured either to the reflector 7 or to the burner cone 3 and opens at the bottom into the compartment 10.
Patent GB-910203-A (GB)
Title: A linear motion device for operating control rods of a nuclear reactor
IPC: G21C7/14
Filed: 1960-04-29
Abstract: 910,203. Controlling nuclear reactors. SOC. INDATOM. April 29, 1960 [April 29, 1959], No. 15123/60. Class 39 (4). [Also in Groups XXIV and XXX] Apparatus for controlling the axial position of an absorbing rod 4 of a nuclear reactor comprises racks 15 . . . 20 secured to the stem 5 of the rod 4 and engaged by hydraulically - operated jacks 6 . . . 11 which are arranged in oppositely disposed pairs, the operating cycles of the pairs being staggered by one-third of a cycle. Each jack comprises a movable portion 21 having triangular teeth 26 which are adapted to mesh with similar teeth on the adjacent rack, the engagement of the teeth being produced by fluid, preferably oil, under pressure, and disengagement by a spring 23. A rotary distributer successively feeds oil through conduits 12, 13, 14 to jacks 6 and 9, 7 and 10, 8 and 11, respectively. The immediate free dropping of the absorbing rod, so that it may act as a safety rod, may be obtained by opening a bypass valve in the control circuit and thereby freeing all the jacks of pressure. Alternatively, the jacks may be pneumatically or electromagnetically operated. Two racks only may be employed.
Patent GB-1471371-A (GB)
Title: Cyclopenteno-b-pyridine derivative
IPC: C07D221/04
Filed: 1974-04-05
Abstract: 1471371 Cyclopenta[b]pyridine derivative JOHN WYETH & BRO Ltd 3 April 1975 [5 April 1974] 15123/74 Addition to 1432378 Heading C2C  The invention comprises the compound of formula and its pharmaceutically acceptable salts. In the example, this compound is prepared by reacting a solution of the amide in pyridine, with P 2 S 5 +H 2 S. Therapeutic compositions having antiulcer activity comprise the above compound.
Patent GB-336975-A (GB)
Title: Improvements in or relating to bottle filling apparatus or the like
IPC: B67C3/28
Filed: 1929-07-16
Abstract: 336,975. Sturtevant, S. H. July 16, 1929. Divided on 336,653, [Class 125 (ii), Bottles &c., Filling &c.]. Fixed-chamber apparatus.-Relates to devices for filling bottles &c. with measured quantities of liquid of the type comprising an inlet valve between the liquid container and the measuring chamber and a slidably mounted outlet valve operated by the upward movement of the bottle. According to the invention the measuring chamber 1 is provided with a rotary inlet valve 8 which is operated by cams 18 on either side of the machine through a rack-and-pinion gearing. The outlet valve 31 is operated by the engagement of a bottle with a resilient washer 24 attached to a transverse rod 28 which passes through the valve stem 30. The washer 24 has grooves 41 to permit the egress of air. A stem 34 on the upper side of the valve 31 operates a valve 36 to admit air under pressure to the measuring chamber. The upper plate 2 of the measuring chamber has ports 7 which register with ports in the valve 8 to admit the liquid. Specification 336,653, [Class 125 (ii), Bottles &c., Filling &c.], is referred to.
Patent GB-221287-A (GB)
Title: Improved system of street police or ambulance calls
IPC: G08B13/00
Filed: 1923-06-11
Abstract: 221,287. Moore, E. E. June 11, 1923. Fire, police, and like alarm systems and apparatus.-Street-call boxes for police or ambulance use are constructed for attachment by bolts or the like to existing fire alarm standards, the telephone circuits being, however, kept independent. A different key is provided for each part of the combined call point, to ensure that fire, police, and ambulance officials will each use the part appropriate to them. 'The telephone receiver and transmitter are arranged on an inner panel B of the call box A, so as to be protected but accessible. When the - switch-hook C is lifted, current flows from the battery V at the central station through the relay R which rings the bell. At the same time the annunciator M at the central station is operated and its flap on falling short-circuits its coil. The microphone and telephone at each station are arranged in parallel as shown. In the event of the central station desiring to call up a policeman on his beat, the switch N is closed at the central station, whereupon lamp or other indicators J are energized at the corresponding call boxes. The indicators are inconspicuous but can be seen through a hole in the box.
Patent GB-1068658-A (GB)
Title: Feed cover-plates for sewing machines
IPC: D05B73/12
Filed: 1966-04-06
Abstract: 1,068,658. Sewing machines. H. G. C. FAIRWEATHER (SINGER. CO). April 6, 1966, No. 15231/66. Heading DIG. A sewing machine throat plate is provided on its under side with depending thread-deflecting means adapted to be disposed adjacent the free extremity of a feed dog. As shown, a plate 23, which replaces the normal throat plate when the feed dog 24 is to be immobilised, carries two depending fingers 32, 33 which straddle the free end 26 of a bar 25 of the feed dog to prevent thread drawn by the rotary hook 22 from becoming entangled with bar 25. Thread drawn by the rotary hook is deflected from a bar 28 by a rib 30 curving outwardly from bar 28. The bars 25, 28 are unconnected at their free ends. Lugs 35 projecting from plate 23 are releasably held by spring-biased plungers in recesses formed in fixed posts 50.
Patent GB-1432297-A (GB)
Title: Selective calling arrangement
IPC: B61L3/22
Filed: 1974-04-05
Abstract: 1432297 Radio signalling STANDARD TELEPHONES & CABLES Ltd 5 April 1974 15237/74 Heading H4L  In an arrangement for selectively calling a mobile receiver, e.g. in a transport system, via a succession of lengths of radiating cable coupled together by repeaters, means are provided for effectively energizing only the length of radiating cable adjacent the mobile receiver to be called so that receivers adjacent other lengths are not called. A transmitter is arranged to supply the cable with the radio frequency signal to be radiated and with a non-radiating signal coded with the address signal of a repeater, each repeater having a different address number in accordance with its position along the route. Each repeater includes means for switching the gain of the repeater from a normal level to a higher or a lower level and control means responsive to a coded signal identifying that repeater to cause the switching means to switch the gain to a higher level, sufficient to unmute the receivers, and to a coded signal identifying the immediately preceding repeater to switch the gain to the lower level.
Patent GB-253920-A (GB)
Title: Improvements in lead alloys
IPC: C22C11/08
Filed: 1926-06-17
Abstract: 253,920. Yoshikawa, H. June 21, 1925, [Convention date]. Alloys.-Lead alloys contain up to 4 per cent, preferably 0.02.5-0.25 per cent, of bismuth, the remainder being pure lead. The Specification as open to inspection under Sect. 91 (3) (a) states that the bismuth content may be up to 10 per cent. This subject-matter does not appear in the Specification as accepted.
Patent GB-1139367-A (GB)
Title: Induction heating apparatus
IPC: B23K1/002
Filed: 1966-04-06
Abstract: 1,139,367. Heating inductors. AEROQUIP A.G. 6 April, 1966 [13 April, 1965], No. 15404/66. Heading H5H. [Also in Division H2] A detachable high frequency heating clamp comprises a body 10 having jaw portions 16, 18 pivoted at 14 carrying shaped water cooled heating coils 20 and end shields 22 clamping a stainless steel pipe 24 . The H.F. conductors 26, 28 connect to a generator and the clamp may be attached to a support by a threaded portion 30. A protective gas such as argon is injected into the jaws, which gas also cools a thermocouple 42 housed in a tube 34, which thermocouple terminates the H.F. current through a central circuit of a determined temperature. Alternatively the thermocouple may be connected to an indicator and the current switched off manually.
Patent GB-107902-A (GB)
Title: Improvements relating to Motor and Like Vehicles.
Inventor: DEW HENRY JOSEPH
IPC: B60S9/06
Filed: 1916-11-01
Abstract: 107,902. Dew, H. J. Nov. 1, 1916. Stands or supports for vehicles.-Lifting-jacks are pivoted to the frame or chassis and, when not in use, their free ends are rested upon a bracket g, or recessed part &c., out of the way. The jacks comprise screwed portions a, b, a nut c, and a pivoted foot or shoe f. The lower screwed portion of one jack has threads of opposite hand to that of the jack on the opposite side of the vehicle, so that the two separated lower portions may be used with a nut to provide a separate jack.
Patent GB-258528-A (GB)
Title: Improvements in or relating to fire extinguisher
IPC: A62C13/00
Filed: 1926-06-21
Abstract: 258,528. Everitt, W. E. June 21, 1926. Fire - extinguishing by pulverulent materials. - A powder container 1, Fig. 1, is provided with a cylinder 3 having a piston 4 mounted on a rod 6. The piston consists preferably of a cup leather 4 distended by a spring 9, Fig. 3, to prevent shrinkage during non-use. The upper end of the cylinder is closed by a threaded cap 11. The lower end of the cylinder 3 has an open conical end 12 surrounded by a corrugated funnel member 13. Fig. 4. The corrugations space the members 12 and 13 and allow the powder to pass between. The member 13 has a tapered seat 15 closed by a valve 16 on the rod 6. A coil spring 17 prevents this closure 16 relaxing from long non-use. The rod 6 has lugs 18 &c. at the top which will pass through openings in the cap 11 so that after a slight turning movement the valve 16 will be firmly seated at 15. A handle 22 has a spring 25 to press against a gasket 26 during non-use.
Patent GB-383643-A (GB)
Title: Improvements in and relating to the fittings of rimless eyeglasses, spectacles and the like
IPC: G02C1/02
Filed: 1931-05-28
Abstract: 383,643. Spectacles &c. EGLINTON, W. D., 100, Lower Addiscombe Road, Croydon. May 28, 1931, No. 15626. [Class 97 (i).] A fitting for the attachment of the lenses of rimless spectacles by the engagement of projections on the fitting in holes or recesses in the lens is made in two pieces, one of which is integral with the bridge or the side piece while the other is attached by a screw and is so positioned and fulcrumed upon the integral piece that the operation of screwing the two parts together cannot increase substantially the pressure of the projections upon the lens. The integral part 1 has a part 2 engaging the rim of the lens 3 and a lug 4 projecting from the part 2 with a projection 5 engaging a depression or hole 6 in one face of the lens. The separate part 7 has a projection 8 engaging a depression &c. 9 in the opposite face of the lens and is formed with a shaped end 7a to engage in a positioning recess in the member 1. The members 1, 7 are connected by a screw 10. The member 1 is formed with a slight rise or hump 1a on which the member 7 rests so that any excess pressure applied to the screw will be taken mainly upon the member and not upon the lens.
Patent GB-1426155-A (GB)
Title: Underwater sealing of exposed ports in relatively closeable members
IPC: F16L27/12
Filed: 1974-04-09
Abstract: 1426155 Pipe connector seal HYDRIL CO 9 April 1974 [30 April 1973] 15712/74 Heading F2G A seal apparatus which provides a seal between mutually opposed faces 12, 13 and around ports 15, 16 of members 10, 11 of a pipe connector when the ports are aligned comprises concentric tubular inserts 17, 18 in port 15 of member 10 capable of relative telescopic movement, the insert 17 having an end portion 19 projecting beyond the surface 12 and a rubber ring 30 between the outer end portions of the inserts. As the two members 10, 11 are brought together to register ports 15, 16 the projecting portion 19 engages face 13 of member 11 forcing insert 17 inwards thus axially compressing bead 30a of ring 30 between shoulders 17b and 18b of the respective inserts 17, 18 which squeezes the rubber axially towards face 13 effecting a seal between the members. An annular Belleville spring 32 in bore 33 between shoulder 24 and the inner end of insert 18 adds to the resiliency of the seal and as the ports are brought into alignment inserts 17, 18 are pushed inwardly to compress the spring 32 accentuating the pressure of both the insert end 19 and the rubber at 30b against face 13. The extent of the outward projection of end portion 19 is limited by engagement of a shoulder 20 on insert 17 with end face 21 of an annular retainer 22 screwed into a counter bore 23 in member 10. 0-rings 35, 36 respectively provide sealing between the inserts and between insert 17 and bore 33.
Patent GB-144704-A (GB)
Title: Improvements relating to the quenching of coke
IPC: C10B39/04
Filed: 1920-06-10
Abstract: 144,704. Sch÷ndeling, W. Aug. 21, 1915, [Convention date]. Cooling discharged materials. -- Coke is quenched in a receptacle, which is turned, after it has received the cake of coke from the oven, into an horizontal position for quenching. The apparatus comprises a pan or receptacle a, which is fitted with removable ends and a perforated or openwork wall c, and is mounted on a tipping frame d, so that it can be moved from the vertical receiving position into the horizontal quenching-position shown. The water which accumulates in the pan can be discharged through the outlet f. After quenching, the coke may be pushed or raked out over a grid at one end, or the pan may be tilted about a transverse axis to discharge the contents.
Patent GB-102151-A (GB)
Title: Improvements in or relating to Driving Gear or Operating Arrangements for Compressors or Air Pumps.
Inventor: GRALLA JOSEF
IPC: F04B33/00
Filed: 1916-11-06
Abstract: 102,151. Gralla, J. Nov. 6, 1916 Actuating pumps by hand power; port. able hand-pumps.- Driving-gear for air pumps or compressors comprises a hand-crank with a handle and means for automatically an d gradually increasing the length of the crank, as it is oper. ated, to correspond with the increasing load on the pump or compressor. A s shown, the crank comprises two tele. scopic parts 19<a>, 19<b> Fig. 3, and an axle 24 rotatably mounted ir the part 19<b> and carrying a rotatable handle 25, which may be clutched to the axle, when desired. by a spring-controlled lever 26 with a pro. jection 27 adapted when pressed to en ter a recess 29 in the axle. A rope, chain, &c. 23 is attached at one end to the end of the part 19<a>, passes around a guide-wheel 22 at the end of the part 19<b>, and is secured to the axle 24, so that when the handle 25 is clutched to the axle 24 and the crank is operated, the rope &c. is wound up on the axle and the part 19<b> is moved out of the part 19<a> to lengthen the crank. A spiral spring may be provided to return the part 19<b> and the handle to their initial positions. The crank is described as applied to the actuating-shaft 13, Fig. 1, of a twostage compressor comprising cylinders 1, 2 and pistons 5, 7 having their rods 6, 8 guided by cross-heads 9, 10 and guides 11, 12 and connected by rods 17, 18 to collinear crank-levers 15, 16 secured to the shaft 13. Non-return valves 3, 4 control the exit of air from the cylinders 1, 2. Modifications are described in which the lengthening of the crank is effected by mounting the handle to slide along a slot in the crank and providing it with a slidable toothed or friction wheel to engage either of two racks or friction surfaces inside the crank. The handle may be hinged to the crank or may be secured in such a manner that it can readily be disconnected. The driving- gear may be provided as an auxiliary drive for pumps normally actuated by power.
Patent GB-1014509-A (GB)
Title: Improvements in and relating to vacuum switches
Inventor: DIGBY BASIL TUXFORD
IPC: H01H33/66
Filed: 1961-05-02
Abstract: 1,014,509. Vacuum switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 30, 1962 [May 2, 1961], No. 15881/61. Heading H2B. In a vacuum switch having two co-operable contacts 1, 2, one contact or each contact has a continuous channel 8 extending into the peripheral side wall 9 adjacent to the contacting face of the contact. The channel may have a narrow width and a depth substantially greater than its width. It is stated that the channel or channels prevent migration of the cathode arc root on to adjacent metal parts.