baber/WOPTO huggingface dataset:
Patent GB-341454-A (GB)
Title: Colour photography
IPC: G03C7/26
Filed: 1929-07-15
Abstract: 341,454. Colour photography. MARTINEZ, M., 10, Adelphi Terrace, Adelphi, London. July 15, 1929, No. 21690. [Class 98 (ii).] In a process of colour photography an exposed surface comprising two or more layers each containing or overcoated with a different single colour dissolved or suspended in the layer, is treated during or after development and fixing to remove the colour either from the light affected parts or from the parts not so affected. The removal may be carried out by treatment with acidified hydrogen peroxide or by hardening the gelatine of the exposed parts and removing the unhardened parts along with the colour therein. Colour particles may consist of silver erythrosinate, ferricyanide, or chromate, coloured salts of mercury or other metals e.g. nickel dimethylglyoxime, sulphides or oxides, coeruleum, cobalt blue, ThÚnard blue metallic resinates and animal or vegetable colouring matters. Dyes used include carmine, erythrosine or iodo-eosine for red, tartrazine or carmathine for yellow, logwood, indigotin or indigo-carmine for blue and quinoline or alizarine colours. Substances not in themselves coloured but which yield a colour on suitable treatment, such as nickel, copper, ferric or uranium salts, dimethylglyoxime, benzoin oxime, alpha- and #- naphthylamine and leuco compounds, may also be used. In an example a support S of celluloid is coated with a fast silver bromide emulsion E3 containing smalt, and on the opposite side a similar emulsion E2 thinned by the addition of 30-50 per cent of gelatine solution containing tartrazine, over which is coated a second layer thinned with 40-60 per cent of a saturated solution of erythrosine with 7 per cent of gelatine. After exposure the affected parts shown cross hatched in Fig. 1 are removed with acidified hydrogen peroxide, the resulting layer being shown in Fig. 2. Specification 222,523, [Class 98 (ii), Photographic processes &c.], is referred to.
Patent GB-1312318-A (GB)
Title: Frequency generator circuit for use in a frequency synthesizer
IPC: H03L7/187
Filed: 1970-05-06
Abstract: 1312318 Frequency synthesizer; wave-band switching SCHLUMBERGER OVERSEAS MESSGERATEBAU UND VERTRIEB GmbH 6 May 1970 [7 May 1969] 21722/70 Headings H3A and H3Q A frequency generator comprises a controlled variable frequency oscillator 10, a mixer 18 arranged to produce the difference frequency between the output f 0  of 10 and a frequency f A , a variable frequency divider 16, a phase sensitive detector 14 for applying an analogue control signal to the oscillator 10 in dependence on the phase difference between the divided output of 16 and a reference frequency f R , the oscillator 10 including a plurality of reactances L 1 -L 4  (see Fig. 2) selectively switched by a digital control signal which also adjusts the division ratio of 16 so that the output frequency f 0  lies within the control loop capture range. The analogue control signal is applied to a varactor CD in the oscillator tuned circuit for continuous tuning while the digital control signal produced by a control unit 22 is in binary coded from for step-wise tuning of 10. The reactances L 1 -L 4  may have different values as a function of the weight of the coded signals or have equal values but connected to different taps determined by the weighting. The switching elements D 1 -D 4  may be diodes as shown or transistors.
Patent GB-692793-A (GB)
Title: Improvements in machines for bagging cereal products and other materials
IPC: B65B43/50
Filed: 1950-09-04
Abstract: 692,793. Sackholders. SIMON (HOLDINGS), Ltd., H., BRIAN J. C., FOLEY, F., and HUNTER, S. G. Oct. 11, 1951 [Sept. 4, 1950], No. 21726/50. Class 58 [Also in Groups XVII and XVIII] In a filling machine, (see Group XVII), a sack is secured to a filling spout 7 by a quick-action clamp comprising parts 56 and 57 mounted on supports 63 and 65 pivoted to a bracket 55 on a ring 54 secured to the spout, the part 57 being formed with a hinge 58 to enable the clamp to be opened fully and with a clasp 59 operated by a handle 60 for engaging the hooked end of the part 56. The support 63 carries a pin 62 engaging a slot 64 in the support 65 so that the clamp may be opened or closed with one hand.
Patent GB-773281-A (GB)
Title: Rotary compressor plants including recuperation turbines
IPC: F04D25/02
Filed: 1955-07-27
Abstract: 773,281. Axial-flow and centrifugal compressors; elastic-fluid turbines. SULZER FRERES SOC. ANON. July 27, 1955 [Aug. 10, 1954], No. 21734/55. Classes 110 (1) and 110 (3). In a compressor plant in which the compressor is coupled to a recuperation turbine, the latter is provided with a diffuser on its outlet side and with variable inlet guide vanes upstream of the turbine rotor blade ring. Part of the air leaving the outlet 2 of an axial-flow or centrifugal compressor 1 can be diverted from the outlet pipe 3 to the inlet 4 of a recuperation turbine 5 which is coupled to the compressor. Control is effected by means of adjustable guide vanes 6. The air passes to the turbine outlet 9 by way of a radial-flow diffuser 8. The servomotor 13 for adjusting the guide vanes 6 is disposed centrally on the turbine axis. The recuperation air may be diverted from an intermediate stage of the compressor. If the turbine has more than one stage, a second ring of adjustable guide vanes may be arranged between the first and second turbine rotor blade rings.
Patent GB-1409785-A (GB)
Title: Manhole cover frameworks
IPC: E02D29/14
Filed: 1972-05-10
Abstract: 1409785 Manhole covers BRICKHOUSE DUDLEY LTD 8 May 1973 [10 May 1972] 21780/72 Heading E1G A manhole cover frame for filling with concrete to form a manhole cover includes a socket housing 10 made from a metal pressing having a hole 20 in its upper surface for receiving a lifting key and having three abutting sides formed by folding along edges 14. The housing is welded to the peripheral frame 17 of the cover, the frame having reinforcement members 18 and being filled with concrete. The frame 17 has a hole 36 aligned with hole 20 for receiving a nut which engages through a further hole 35 in the manhole seating 27 into a lock nut 34. The nut 34 is held captive in parallel channels in opposed sides of a housing 30, Fig 3 (not shown) welded to the seating 27. The parts may be coated with zinc or plastics.
Patent GB-1424580-A (GB)
Title: Sheet feeding apparatus
IPC: B65H3/46
Filed: 1973-05-08
Abstract: 1424580 Feeding sheets XEROX CORP 8 May 1973 [22 May 1972] 21874/73 Heading B8R In a sheet feeding apparatus having friction separator rollers 12 which are driven first in the reverse direction to buckle a sheet 29 against rear stop 14 and to remove the leading edge of the sheet from beneath pressing members 17 and then in the forward direction for feeding the sheet, the rollers are driven through an elastomeric roll 60 having a longitudinally grooved surface, the roll 60 being driven in the two directions by segmental drive members 62 and 63 each member having a grooved surface, the pitch of the grooves on the roll being different from the pitch of the grooves on the drive members. The roll 60 may be of polyurethane and the drive members of aluminium. The grooves may be V-shaped with those on the roll 60 having an included angle of 90 degrees and those on the drive members having an included angle of 60 degrees. The pile holder may be pivoted at 20 and biased upwardly into engagement with rollers 12 by a spring 22. The members 17 may be reciprocated in the vertical direction to move the pile into and out of engagement with the rollers 12. A pair of nip rollers (50 and 51, Fig. 4, not shown) are provided to forward the separated sheet. The upper nip roller may be a dropping roller to forward the sheets in time with the separating operation.
Patent GB-421202-A (GB)
Title: Improvements in or relating to the production of gramophone records
IPC: G11B3/70
Filed: 1933-08-04
Abstract: 421,202. Making gramophone records. BAILEY, W. C., 27, The Grove, Coulsdon, Surrey. Aug. 4, 1933, No. 21912. [Class 40 (ii)] A gramophone record blank suitable for " home" recording, of the kind having a pre-formed spiral groove, is treated by coating the surface of the blank (which is preferably of sheet metal) with a softened material which is capable of hardening on exposure to air (e.g. collodion with amyl acetate), or the surface is made of a substance temporarily softened by a suitable solvent (e.g. a phenol-aldehyde condensation product softened by applying formaldehyde); the soft surface is then sprayed with a volatile solution of a protective substance, such as wax dissolved in petrol, or a suitable varnish, and the solvent is allowed to evaporate before the blank is used.
Patent GB-741297-A (GB)
Title: Improvements relating to nest boxes for poultry houses
IPC: A01K31/16
Filed: 1952-09-01
Abstract: 741,297. Nest boxes. KEVILL, A. J. Nov. 23, 1953 [Sept. 1, 1952], No. 21913/52. Class 5 (2). A nest box for poultry comprises an entrance door 2 and a pivoted floor 5 which is connected by a link 7 and lever 9 to an exit door 10 so that the weight of a hen on the floor opens the door 10 after a catch 13 is unlocked by the weight of an egg tilting a.spring-urged plate 11. As shown the door 2 is prevented from opening outwardly by a rod 4. The floor consists of a dished platform with an aperture 6. The eggs are collected in a receptacle 17. The pivoted floor may be linked with a locking mechanism in the entrance door.
Patent GB-193785-A (GB)
Title: Improvements in dumping mechanism for conveying buckets
IPC: B65G17/36
Filed: 1922-08-14
Abstract: 193,785. Streich, P. B. Aug. 14, 1922. Discharging-devices for pivoted bucket conveyers.-Buckets 15 pivoted to an endless chain or belt 13 are inverted and agitated to discharge their contents when ribs 32, 34 formed on their sides come into contact with a series of spaced horizontally aligned rollers 20 which in the construction shown are removable from the path of the buckets. The buckets 15 are preferably semi-cylindrical and are supported by rollers 17 running on tracks 12. The rollers 20 are mounted in plates 18 supported by parallel links 22 forming part of members 21, Fig. 2, pivoted on shafts 24. Means are provided for rotating one of the shafts 24 when it is desired to render the appliance inoperative.
Patent GB-460302-A (GB)
Title: Improvements in means for automatically connecting the fluid systems of detachable tractor and trailer combinations
IPC: B62D53/12
Filed: 1935-08-06
Abstract: 460,302. Vehicle couplings. GURTON, W. S., PLINT, J., and NYBERG, H. Aug. 6, 1935, No. 22127. [Class 103 (v)] In tractor - trailer combinations of the readily detachable type in which the trailer is provided with fluid actuated brakes or equipment controlled from the tractor, the fluid conduits are carried by separable mating members mounted respectively on tractor and trailer and are adapted to register to form sealed connections automatically on coupling the vehicles. The coupling means may include means for regulating the clearance between the vehicles when turning, without affecting the fluid connections. The form shown, which also includes electric connections, comprises a fifthwheel semi-trailer coupling, a base plate 4 with approach ramps 3 being provided on the end of the tractor. The fluid conduits 30, 31 on the trailer terminate in cylindrical sockets 32, 33 formed in a flange on the front edge of a coupling plate 13 and fitted with rubber gaskets 34, 35. When coupling the vehicles, the kingpin 6 and a tail-piece 5<1> carried by the plate 13, are guided by the converging space between the ramps 3, so that the gaskets 34, 35 meet corresponding gaskets 19, 20 seated in tapered sockets 17, 18 on a cross-bar 11 on the tractor base plate 4, the cross-bar being carried by pins 7 slidable in housings 6, under control of springs 8, which are placed under tension in effecting the coupling, so that the gaskets are pressed together. Passages 15, 16 in the cross-bar 11 lead from the gaskets 19, 20 to flexible conduits 21, 22 which communicate with the main fluid control conduits 28, 29 through a valve casing 23, the slidable valve members 25 being connected by a rod 26 to the cross-bar 11 so that the yielding movement thereof when coupling or uncoupling serves to open and close the valves. An electric plug connection 36, 38 may be arranged between the fluid connections as shown in Fig. 4. The trailer coupling-plate 13 with kingpin 5 is hinged by pins 42 connecting lugs 40 thereon to lugs 41<1> on a bearing plate 41 on which the trailer rests, the plate 41 being secured to a pin 43 slidable between longitudinal guides 44, 45 on the trailer and being pivotally tied by a link 46 to a stud 47 secured to the front end of the trailer so that when the plate 41, moving with the tractor, turns relatively to the trailer, the link 46 is swung about its pivot 47 shortening the distance between the studs 47 and 43, thus drawing the trailer back on the stud 43 to give clearance between the vehicles, as shown in Fig. 6.
Patent GB-420547-A (GB)
Title: Improvements in and relating to systems of electric motor control
IPC: H02P25/02
Filed: 1933-08-08
Abstract: 420,547. Master control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Kilbourne, C. E.; 101, Plymouth Avenue, Schenectady, New York, U.S.A.) Aug. 8, 1933, No. 22182. Convention date, Aug. 6, 1932. [Class 38 (iii)] A motor has two field windings 11, 12, and 13, 14 which are normally connected in series by a series switch 23, but which can be connected in parallel by first closing switches 24, 25, which establish parallel circuits around the series switch and the respective field windings, one of the parallel circuits including a resistance 26, then opening the series switch, and finally closing a switch 27 to short-circuit the resistance. Upon operation of a start button 35, a selfmaintaining contactor 36 closes, thereby closing a contactor 42 which connects the motor armature 10 to the supply. A contactor 46 is also energized by the closure of the contactor 36, and, after a time, causes a contactor 22 to close thereby connecting the field sections 11, 12, and 13, 14 to the supply 19 in series. Upon operation of a push button 51 or a load responsive relay 66, an operating coil 52, the coil 58 of a relay motor, and a contactor 68 are energized. The contacts 56 are thereby closed to maintain the circuit, and a contactor 71 closes so that the field sections and series switch are shunted, the shunt for the section 13, 14 containing a resistance 26. The closure of the contactor 71 opens the series switch which breaks the series connection, and causes a contactor 76 to close to short-circuit the resistance 26 so that the sections of the field are finally in parallel. After a predetermined time the relay motor 58, which is similar to that described in Specification 241,883, [Class 38 (v)], opens a switch 61 and closes a switch 64, the opening of the former de-energizing the contactor 68, and the closing of the latter energizing contactors 85, 80. The contactor 80 in closing causes the contactor 76 to drop out and reinsert the resistance 26 in the field circuit, and the opening of the contactor 76 together with the closing of the contactor 80 causes the contactor 30 to reclose and make the series connection of the field sections. The closing of the contactor 30 de-energizes the contactor 71 so that the shunts across the field sections are removed, and the sections are again in series. The contactor 85 when energized causes, after a time interval, the resetting of the timing mechanism. The cycle thus performed may be again repeated, and if overload persists is automatically repeated. The motor is stopped by operation of a button 41 to de-energize the contactor 42 which opens thereby to energize a contactor 101 which connects a braking resistance to the armature 10. Specification 419,769 also is referred to.
Patent GB-204833-A (GB)
Title: Improvements in and relating to fuel injecting and vapourizing means for internal combustion engines
IPC: F02B19/14
Filed: 1922-08-15
Abstract: 204,833. Steinbecker, K. Aug. 15, 1922. Cylinders receiving liquid fuel. - An ignition chamber F is separated from the combustion space by a narrow passage c<1> branching into a plurality of passages d' at the ignition chamber end, means being provided for injecting fuel into the connecting passage c<1> and for cooling the branching passages d<1>. Cooling is effected either by injecting the fuel through ducts c<3> directly against the lower ends of the branching passages d', or by providing water-circulating passages d<2> surrounding them throughout the whole of their length. Both of these methods may be used in the same engine. A member E serves to ensure ignition in spite of the cooling of the passages, and incidentally acts as a screw cap to keep the member D in place. Specification 138,337 is referred to.
Patent GB-691516-A (GB)
Title: Improvements in automatic railway car couplers
Inventor: KAYLER FRANK HOMER
IPC: B61G3/04
Filed: 1951-09-24
Abstract: 691,516. Rail-vehicle couplings. AMERICAN STEEL FOUNDRIES. Sept. 24, 1951, No. 22337/51. Class 103 (v). An automatic coupling having a head 2 provided with a knuckle 12 pivoted at 10, a knuckle thrower 16 pivoted at 18 and a lock 26 is characterized in that the lock is provided with a seat 52 which engages a complementary seat 50 on the knuckle thrower when in the lockset position so that the weight of the lock is taken solely by the thrower and not on the trunnion 46. Rotation of the rotor 34 about its pivot 36 lifts the toggle 42 by the action of the pin 38 and slot 40 and hence the lock 26 from its lock-set position. Continued rotation causes the lug 58 on the toggle 42 to engage the end 22 of the thrower 16 to throw the knuckle 12 to open position. U.S.A. Specification 2,350,470 is referred to.
Patent GB-281778-A (GB)
Title: Improvements in electric time switches
IPC: G04C23/10
Filed: 1926-09-10
Abstract: 281,778. Marks, E. C. R., (Tork Co., Inc.). Sept. 10, 1926. Clockwork actuation.-A double-pole switch. particularly adapted for operation by a clock, comprises an " on " lever f and an " off " lever c, both of of which are moved in a clockwise direction by trip mechanism and, when released, are returned by springs to effect the make and break. The contact blades g, are mounted on coaxial spindles h, h<2> and are operatively connected by a bridge g<2> formed with flanges g<3>, g<4> mounted on the spindles h, h<2>. The latter are mounted in brackets i, i<1>, i<2> carried by a base i' secured to a partition b<1> of an insulating casing b, the terminals b<3> leading to the fixed contacts being arranged below the partition. A lever d for hand operation, mounted on the shaft h is riveted through to the flange g<3>, the blade g being insulated by sheets k, k<1>. The blade g<1> is similarly clamped between a plate l<1> and the flange g<4>, being insulated by sheets k', k'. A plate h<1> pivoted on the spindle h<2> has a bridge h<3> integral with a lever h<4> pivoted on the spindle and having an arm h<5>. When the lever e, which is pivoted on the spindle h, is released by the trip mechanism, it is returned by a coiled spring n, and a pawl c<1> pivoted to the lever e at e<2> strikes a flange h<6> on the arm h<5> and moves the arm into contact with the bridge g<2>, rotating the later until the pawl e<1> engages a stop i<7>. The movement of the contact arms is completed by a spring m connecting the plate h<1> to a fixed pin i' and moved over its dead-centre by the lever e. The make is similarly effected by a lever f<1> pivoted on the shaft h and having a slotted arm engaged by a pin f<4> on the tail of the " on " lever f, which is pivoted on a pin i<5>. When the lever f is tripped a coiled spring o rotates the lever f<1> in a clockwise direction and a pawl 0<1> pivoted to the lever at o<3> strikes the bridge h<3> and moves it into contact with the bridge g<2>. The pawl is arrested by a stop i<9> and the movement is completed, as before, bv the spring m. An opening b<7> may be provided in the casing for inspection of the lever d and a heating coil r may be mounted on the top of the casing.
Patent GB-621393-A (GB)
Title: Improvements in and relating to hydraulic apparatus embodying a plurality of selectively controlled cylinders
IPC: F15B13/06
Filed: 1946-07-29
Abstract: 621,393. Multi-cylinder hydraulic motors. MACTAGGART, SCOTT, & CO., Ltd., GUNNING, M. F., and RUSSELL, R. C. July 29, 1946, No. 22475. [Class 69 (ii)] A multi-cylinder hydraulic motor has working cylinders arranged in three groups a, b, c, each cylinder having a separate distribution valve d. A distribution pipe-line f<SP>8</SP> and the group a are supplied with pressure liquid from an accumulator through a pipe-line e and a hand-operated valve e<SP>2</SP>. The distribution valves d of the groups b, c each comprises a cylinder block k having an exhaust port k<SP>2</SP>, an inlet port k<SP>1</SP> and a delivery port k<SP>3</SP> therein. A tappet portion l<SP>8</SP> of a piston l in the cylinder k slides in a cross-head m having a roller m<SP>1</SP> in contact with a cam track m<SP>2</SP> on the motor. A spring l<SP>9</SP> holds the tappet l<SP>8</SP> clear of the crosshead, the ports k2 being then in communication with ports k<SP>3</SP> around an annular recess l<SP>1</SP> in the piston l. A small port l<SP>7</SP> communicates with an annular recess l<SP>6</SP> in the cylinder k and by means of ducts l<SP>5</SP> and l<SP>2</SP> with a cylinder l<SP>3</SP> in the piston l, containing a piston l<SP>4</SP>. A valve block g contains three cylindrical bores h, i, j with pistons h<SP>1</SP>, h<SP>2</SP>, i<SP>1</SP>, j<SP>1</SP> therein. Liquid from the pipe-line e acts beneath the piston h2 connected to the piston h<SP>1</SP> causing the latter to compress liquid in chambers h<SP>5</SP>, i<SP>5</SP>, j<SP>4</SP> connected together by ducts i<SP>9</SP> and j<SP>8</SP>. The pipeline f<SP>8</SP> is connected to a port j<SP>17</SP> in the block g and liquid pressure therefrom acts beneath the piston i<SP>1</SP> loaded by a spring i<SP>6</SP> and opposed by pressure in the chamber i<SP>8</SP> acting on top of the piston. At a predetermined increase of pressure in the pipe f<SP>8</SP> due to increased load on the motor, the piston i<SP>1</SP> moves up and pressure liquid in the duct i<SP>9</SP> is put in communication with a duct ill which is connected to the ports l<SP>7</SP> of the distribution valves d of the group b. This liquid forces the piston l<SP>4</SP> against the top of the block k and pushes the piston l downwards into contact with the cross-head m causing the cylinders of group b to be supplied with pressure liquid and to function with group a. A further increase in pressure causes the piston j<SP>1</SP> similarly loaded as piston i<SP>1</SP> to move up and connect the liquid in duct j<SP>8</SP> to a port j<SP>10</SP> connected to the ports l<SP>7</SP> of the distribution valves of group c causing them to function with groups a, b. Reduction in pressure in the pipe f<SP>8</SP> causes the pistons j<SP>1</SP>, i<SP>1</SP> to drop down and so render the groups c, b inoperative. Specification 576,074 is referred to.
Patent GB-1354815-A (GB)
Title: Photographic camera
IPC: G03B9/58
Filed: 1972-05-12
Abstract: 1354815 Photographic shutter control ASAHI KOGAKU KOGYO KK 12 May 1972 [14 May 1971] 22477/72 Heading G2A The description is identical to that contained in Specification 1354811, the claims being directed to the provision of the capacitor (40) provided in the electromagnet energizing circuit.