baber/WOPTO huggingface dataset:
Patent GB-616458-A (GB)
Title: Improvements in stoves and fireplaces combined with hot air supply apparatus
IPC: F24B1/188
Filed: 1946-09-04
Abstract: 616,458. Heating air. ROBERTSON, A. Sept. 4, 1946, No. 26549. [Class 64(iii)] A stove or fireplace having a metallic fire back 12 forming the front wall of an air heating chamber open below the level of the fireplace to an air inlet duct 15 and communicating above with a hot air duct leading to an outlet 8, and having a fan 16 fitted in the system, is characterized in that the air heating chamber is divided into parallel ascending air passages by vertically disposed transversely grooved or corrugated metal plates 1, conductively connected to the fireback and extending to the rear wall 5. In the form shown, the ascending air passages communicate with a descending duct 14 formed between the wall 5 and an outer casing 6. The inlet duct 15 is divided into parallel undulating passages by the provision of corrugated plates 3, similar to plates 1 but with the corrugations vertically disposed. The air heating chamber may be extended at the sides of the fireplace to form communicating air spaces which may be fitted with corrugated plates similar to plates 1 and 3, the corrugations being either vertically or horizontally disposed. The metallic fireback and/or the sides of the firechamber may be fitted with heat conducting ribs, corrugations or projections 4 and the lower part of the fireback may be protected by firebrick. The fan may be fitted in either the inlet duct 15, the outlet duct 14, the outlet connection 8, or above the ascending air passages 13.
Patent GB-246416-A (GB)
Title: Improvements in or relating to the production and separation of hexamethylenetetramine and ammonium chloride
IPC: C07D487/18
Filed: 1925-10-23
Abstract: 246,416. Wade, H., (Karpen & Bros., S.). Oct. 23, 1925. Hexamethylenetetramine and ammonium chloride are produced by the interaction of methylene chloride and aqueous ammonia, and separated by introducing excess ammonia into the solution containing them, whereby the solvent power of the solution for hexamethylenetatramine is reduced and that for ammonium chloride is increased. After the removal of the precipitated. hexamethylenetetramine, the ammonia is distilled off and the solution cooled to precipitate the ammonium chloride. As shown, methylene chloride from a tank A, ammonia in excess from a tank C, and ammonium chloride solution received into a tank D from an evaporator P, are charged into an autoclave B and heated therein at about 100‹ C. until the reaction is complete. The products are passed to a cooled tank E and there saturated with ammonia from the tank C, whereby most of the hexamethylenetetramine is precipitated. After being filtered in a filter G, the precipitate is washed with aqueous ammonia. from a tank F before being passed to a dryer H and storage tank J. The filtrate from G is passed to a still 1. where ammonia is distilled off and returned to the tank C through a condenser S, whilst the ammoniated wash water from G is passed to an evaporator Q and thence through a condenser R to the tank F. From the still I. the solution passes to a cooled tank K, where much of the ammonium chloride is precipitated. After being filtered in a filter L the ammonium chloride is washed with water from a tank M before being passed to a dryer N and storage tank 0. The filtrate and wash water from the filter L are passed to an evaporator P, whence excess water passes back to the tank M, and the solution, after concentration, is returned to the tank D. The ammonium chloride from the filter L, instead of being dried and stored, may be passed to an ammonia recovery plant. Specification 235,015 is referred to.
Patent GB-1188052-A (GB)
Title: Process and Device for the Treatment of Textile Material subjected to a Lengthwise Stress
IPC: D06B3/20
Filed: 1968-06-04
Abstract: 1,188,052. Sieve-drum apparatus. VEPA A.G. 4 June, 1968 [23 June, 1967], No. 26635/ 68. Heading D1L. A sieve drum apparatus has drawing and holding rolls arranged so that the material passing over the sieve drum is under tensile stress during the treatment. Preferably two such arrangements of rolls are used with the sieve drum there-between.
Patent GB-248670-A (GB)
Title: Improved electric motor driven change speed device
IPC: H02K7/116
Filed: 1925-10-26
Abstract: 248,670. Marks, E. C. R., (Hendey Machine Co.). Oct. 26, 1925. Addition to 239,395. Controlling variable-speed gearing.-The parent Specification describes a two-speed gear connecting an electric motor 10 to a pulley 9, Fig. 2, controlled by a lever 25 the unlocking movement of which operates a switch which stops or slows down the motor to facilitate speed changing. The motor 10 is now controlled by a magnetic starter C, Fig. 4 and push-button station A. A switch H is adapted to be operated by the heel 32 of the lever 25 in locking and unlocking so as to control the stopping and starting of the motor in the same manner as if the push button had been operated for these purposes.
Patent GB-894243-A (GB)
Title: Random number selector
IPC: G07C15/00
Filed: 1960-08-03
Abstract: 894,243. Chance apparatus. BARRINGTON, G. E. Nov. 17, 1960 [Aug. 3, 1960], No. 26828/60. Class 132(2) A number selector for games of chance has a plurality of hollow star wheels 18 each freely mounted upon a spindle 12 and containing a freely movable ball bearing 23, and each of the sevenstar arms 21 bears a number, the wheels being caused to rotate by lever arms 15 which are moved by means of a bar 16 against the action of springs 17 and then released, the bar 16 striking an arm 21 of each wheel. Each wheel on ceasing to rotate is brought to rest by ball 23 with a numbered surface 22 presented at datum rod 24.
Patent GB-895209-A (GB)
Title: Improvements in or relating to method of packaging an expansible and crushable artificial branch and the package product thereof
IPC: B65D77/02
Filed: 1959-08-06
Abstract: 895,209. Artificial Christmas trees. MODERN COATINGS Inc. Aug. 6, 1959 [May 18, 1959], No. 26953/59. Class 63 [Also in Group XVII] A branch of an artificial tree made as in Specification 854,059 may have a tab 27 secured over the trailing end of the foil strip. The invention relates to packaging the branches in open-ended tubes (see Group XVII). The foil may be of a magnesium aluminium alloy.
Patent GB-1457841-A (GB)
Title: Preparation of esters of amindoalkanesulphonic acids
IPC: C07C301/00
Filed: 1974-06-18
Abstract: 1457841 Polymerizing amidoalkane sulphonic acid esters LUBRIZOL CORP 18 June 1974 [26 June 1973 15 April 1974] 26988/74 Heading C3P [Also in Division C2] Polymers are made by the homopolymerization or copolymerization of esters of acrylamido (substituted) alkane sulphonic acids. Examples describe the copolymerization of (14) and (15) 100 parts of acrylonitrile and 3À4 parts of methyl 2-acrylamido-2-methyl-propanesulphonate or methyl - 2 - acrylamido - 2- phenylpropanesulphonate, (16) 47À5 parts of styrene and 2À5 parts of methyl 2-acrylamido-2- methylpropanesulphonate, (17) 209À9 parts of iso-decyl acrylate and 11À05 parts of methyl-2- acrylamido-2-methyl-propanesulphonate.
Patent GB-788374-A (GB)
Title: Improvements in or relating to conveyor structures
Inventor: DUNCAN ANGUS WELLESLEY
IPC: B65G39/10
Filed: 1955-09-22
Abstract: 788,374. Endless-belt conveyers. MINING ENGINEERING CO., Ltd. Sept. 20, 1956 [Sept. 22, 1955], No. 27046/55. Class 78 (1). A supporting structure for a belt conveyer comprises rigid rectangular transverse frames built up from channel section members 10 . . . 13 and longitudinal members 16, 17 of angle section connected to the frames by readily releasable clamping means. The flanges of the members 10, 11 are directed downwards and the flanges of the members 12, 13 outwards. A portion of the web at each end of the members 12, 13 is cranked inwards to form a gusset 14 which is welded to the members 10, 11. Plates 15 welded to the upper surface of the member 10 support the longitudinals 16, 17 and are bolted to them. Each set of lower troughing rollers is mounted on an inverted channel member 27 which has two pegs 28, Fig. 2, welded to it at one end and a plate 29 welded to the other. The pegs can be inserted into any pair of a series of pairs of holes 30 formed in the members 12, 13 and the plate may be secured by a bolt passed through it and any one of the holes 32. The flattened ends 33, Fig. 7, of the spindle of a single roller 34 are received in slots in brackets 35 which are mounted on the members 12, 13. In a modification the flattened ends 33 are mounted in brackets secured to a member which is mounted on the parts 12, 13 in the same way as the member 27, Fig. 2.
Patent GB-602531-A (GB)
Title: Hollow constructional blocks and walls executed therewith
IPC: E04B2/42
Filed: 1945-10-16
Abstract: 602,531. Building-blocks. LAVOUE, R. A. P. Oct. 16, 1945. No. 27050. Convention date, Oct. 30, 1944. [Class 87(i)] An apertured building-block comprises side portions 1, 2 joined by intersecting transverse portions 3, 4; small vertical holes 5 are provided at the points of intersection to connect mortar grooves 7 on the upper and lower faces of the block. Dovetail grooves 6 are formed on the ends of the side..portions 1, 2. Modified blocks are provided for corners &c.
Patent GB-1339833-A (GB)
Title: Supersensitised silver halide photographic emulsions
IPC: G03C1/29
Filed: 1971-04-19
Abstract: 1339833 Supersensitized silver halide photographic emulsion FUJI PHOTO FILM CO Ltd 19 April 1971 [2 April 1970] 27092/71 Heading G2C A silver halide photographic emulsion contains a supersensitizing combination of least one dye of the formula:- wherein R 1  and R 2  are each alkyl or substituted alkyl; R 3  is H or methyl; Z completes a 2- quinoline, benzothiazole, benzoselenazole or napthothiazole nucleus which nuclei may be substituted; X 1 <SP>-</SP> is an acid anion; and p is 1 or 2, p being 1 when the dye forms an intramolecular salt, at least one dye of the formula:- wherein R 4  is ethyl, n-propyl, u-eutyl or allyl; R 5  is γ-sulphopropyl, γ-sulpholutyl, #-sulpholutyl, #-carboxybutyl or #-carboxypentyl; Y 1  and Y 2  are each S or Se; X 2 <SP>-</SP> is an acid anion; and q is 1 or 2, q being 1 when the dye forms an intramolecular salt, and at least one dye of the formula: - wherein R 6  and R 7  are each γ-sulphopropyl, γ- sulphobutyl, #-sulphobutyl, #-carboxybutyl or #- carboxypentyl or an alkali metal or amine salt of these groups; R 8  is CH 3  or C 2 H 5 ; Y 3  and Y 4  are each S or Se; V 1  and V 2  are each H or halogen; X 3  is an acid anion; and r is 1 or 2, r being 1 when the dye forms an intramolecular salt. The emulsion has a smooth sensitivity distribution up to 650 nm and the maximum sensitivity at 630-640 nm is not reduced. In the example the silver halide emulsion contains 5-methyl-7-hydroxy-1,3,4- triazaindene as stabilizer.
Patent GB-757061-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F37/12
Filed: 1954-09-29
Abstract: 757,061. Band brakes. BOSCH, GES., R. Sept. 29, 1954 [Sept. 26, 1953], No. 27105/54. Class 103 (1). [Also in Group VIII] In a washing machine (see Group VIII) a container 10 for the washing fluid is mounted on a hollow shaft 70 for free rotation about a shaft 13 which carries paddles to agitate the contents of the container. To damp the movement of the container, which tends to follow the movement of the paddles, a brake band 72 engages a surface 71 on the hollow shaft 70 and is attached at its ends to pins 74 and 75 mounted in a post 76 carried on a pivoted arm 77 which is restrained by the spring 79. The brake band is applied by pulling a Bowden cable core 73 against a spring 84 on the pin 75. The pin 74 is loaded by a spring 83.
Patent GB-1093308-A (GB)
Title: Improvements in or relating to slicing apparatus
IPC: B26D7/32
Filed: 1966-06-17
Abstract: 1,093,308. Slicing bacon &c. SWIFT & CO. June 17, 1966 [Aug. 2, 1965], No. 27199/66. Heading A4C. In a slicing machine slabs of, for example, bacon are moved on to an anvil 22 and into the path of a rotary blade 15 by means of an endless conveyer having transverse cleats 26 mounted on a pair of endless chains 27 the upper runs of which are supported on support rails (32) in conjunction with overhead traction means comprising transverse cleats 58 mounted on a pair of endless chains 56. The tractor assembly is floatingly suspended at its rear end on a spring (53) and biased downwards at the forward end so as to exert a positive grip on the slabs to be cut. Tractor drive sprocket 59 is driven from conveyer drive shaft 30 by means of a constant mesh gear train shown along with the biasing means in Fig. 7 (not shown). A first overhead brake means to control the movement of the slabs comprises a plurality of spring steel wiper fingers 87, 88, 89, 96 mounted on hubs 90, 91, 92, 97 containing helical springs to urge the fingers downwardly towards anvil 22 about 2 inches from blade 15. A second overhead brake means acting immediately adjacent blade 15 comprises a plurality of presser feet 102, 103, 104, 105 having small forward slab contacting surfaces (as 116, Fig. 6) interspersed with the first brake means and sloping rearwardly upward to clear the slabs. Presser feet 102, 103 and 104 act purely by gravity, but the pressure exerted by foot 105 nearest to side guide 24 is increased by spring 111 to retard any tendency for the slab material to creep upwardly at said guide. A side brake means 121 urged inwardly by compression spring 127 is also provided to retard the tendency of the slab to be skewed by the cutting action, .and acts closely adjacent the blade, the rear portion being curved outwardly to clear the slabs. It is stated that the first overhead brake means may be omitted and replaced by additional presser feet. The conveyer and tractor means are driven by a hydraulic motor fed by a pump driven by an electric motor. Means for passing between slice groupings of a desired number or weight may be provided.
Patent GB-1429847-A (GB)
Title: Logic circuit
IPC: H03K19/082
Filed: 1973-06-08
Abstract: 1429847 Logic circuits INTERNATIONAL BUSINESS MACHINES CORP 8 June 1973 [27 June 1972] 27310/73 Heading H3T A circuit including a plurality of interconnected stages 12, 26, 62, at least one stage 26 being constituted by a logic circuit comprising bipolar transistor 28 having a non-linear unidirectional device 42 connected across the base and collector terminals and constituting a first negative feed-back path, a collector impedance 34, an emitter impedance 40 constituting a second negative feed-back path and a fourth impedance 16 associated with one of the other stages and connecting the base terminal to a power supply whereby input signal perturbations at the base from a desired voltage level are compensated by the two negative feed-back paths to generate stable logic output signals at the collector. The basic logic circuit may be used in combination with higher power logic drivers, logic receivers and FETs for operation with off-chip circuits. The logic circuit 26 may be constituted by two or more bipolar transistor stages to form NOR gates as in Fig. 1 and Fig. 6 (not shown) or NAND gates (Fig. 5, not shown), or by a single bipolar transistor inverter (Figs. 8-10 not shown) or by a combination of inverters and NAND gate (Fig. 7, not shown). In operation, in a bipolar transistor stage, if the input voltage tends to increase above a desired level, increased current flows through the fourth resistor 16 and through emitter resistor 40 in a direction to reduce the increase in input voltage and any drop in the input voltage is thus similarly counteracted.
Patent GB-261902-A (GB)
Title: A new or improved massage appliance
IPC: A61H23/06
Filed: 1925-11-02
Abstract: 261,902. Bredenberg, E. H. Nov. 2, 1925. Massage. - In a massage appliance of the type in which resilient disc-like pads with curved heating surfaces are rigidly fixed on the free ends of resilient wire or similar supports, each pad consists of a ball rigidly fixed on the free end of a wire forming the handle or attached to a handle and being permanently bent at its free end so as to present the ball in the direction of the beating action. The device may consist of a single ball and wire or of a number of balls, either mounted singly on separate wire or in groups of more than one on a wire. The form shown consists of a number of rubber balls a on wire stems b curved in two planes, secured in a handle and stayed together at d. The balls may be made of other soft material or of vulcanite or wood. The supporting stems may be made as elongated coiled wire springs or they may be made of other resilient material.
Patent GB-764010-A (GB)
Title: Improvements in and relating to assemblies of screws threaded fastening members in retaining members
IPC: F16B37/06
Filed: 1954-09-23
Abstract: 764,010. Securing nuts and bolts to work. AEROCESSOIRES SIMMONDS. Sept. 23, 1954 [Sept. 28, 1953], No. 27533/54. Class 89 (1). [Also in Group XXVIII] A nut c, Fig. 1, or bolt head 23a, Fig. 10, is assembled in a retainer d passed through a hole 6 in a part e accessible from one side only, so as to engage the hole-edge with its flared end. The retainer comprises a base 1, which may be apertured and from which extend diametrically - opposite arms 2 with enlarged ends 3 having slits 5 forming lugs 4. When a co-operating bolt a is screwed into the nut, or nut 16a on to the bolt, the nut c or head 23a engages the lugs with its bevelled-edge 10 and bends the lugs against the inaccessible face of part e. The nut or head is prevented from turning relatively to the retainer by having slots 12 freely engaging the arms 2, and the retainer is prevented from turning by frictional engagement of its flared end with part e. The other edge of the nut or head may have a bevel 13 which co-operates with the dished base 1 to centre the nut &c. in the retainer. The bolt and retainer assembly may constitute a pipe coupling as shown in Fig. 10, the bolt having an axial bore 19 and the joint being sealed by packing 20. The flared end of the retainer may be received in a recess 22 in part e.
Patent GB-485268-A (GB)
Title: Improvements in or relating to apparatus for making, breaking and regulating electric circuits by variations of speed
IPC: H01H35/10
Filed: 1937-10-11
Abstract: 485,268. Mercury switches. PEARCE, A. P. Oct. 11, 1937, No. 27554. [Class 38 (v)] Apparatus for controlling electric circuits by utilizing the movement of a mobile electrically conductive material comprises two receptacles 3 which are pivoted about trunnions 4 carried on a disc 2 fixed to a rotatable vertical spindle 1, and arms 15, 16 pivotally connected to the upper ends of the receptacles and to the armature 18 of the solenoid 19. Contacts 5, 6 and 7 are insulatably fixed to the receptacles and connected to slip rings 8, 9 and 10, so that when the device rotates, mercury in the receptacles rises under the action of the centrifugal force, to make connection between the contacts at a predetermined speed. When the solenoid is energized, the armature 18 is pulled up against a spring 20, its effect through the arms 15 and 16 being to rotate the receptacles about the trunnions 4 thereby bringing the contacts nearer the axis of rotation and causing the switch to operate at an increased speed.
Patent GB-934298-A (GB)
Title: Improvements in or relating to stands for traffic signs
Inventor: DUPONT GEORGE MARTIN
IPC: E01F9/012
Filed: 1961-07-28
Abstract: 934,298. Stands. I.R.S. Ltd. July 12, 1962 [July 28, 1961], No. 27576/61. Class 52 (3). A collapsible stand for displaying traffic signs comprises at least two hinged together sign display parts, at least one of the parts having secured thereto a stay 13 which may be locked in one of a number of predetermined angular positions relative to said parts. Each stay 13 is hinged by a pin 12 extending between notched side plates 9 carried by a plate 8 secured to an angle iron frame 1 carrying sign display plates 2, the arrangement being such that a locking peg 14 carried by and slidable in a slotted channel portion 11 of the stay 13 may selectively engage a notch 10 in the side plates 9. A leaf spring 17 urges the peg 14 into a notch 10. By means of an ear 15 on the peg 14 the latter may be moved transversely of the channel 11 to free the stay 13 by aligning notches 16 in the peg 14 with the side plates 9. A releasable slip 6 locks the frames 1 in the erected position. When folded the plates 2 lie face to face with each stay 13 lying adjacent the back of a frame 1.
Patent GB-830929-A (GB)
Title: Improvements in or relating to hydraulic control valve units
Inventor: HAYES GEORGE
IPC: B23B47/08
Filed: 1956-09-10
Abstract: 830,929. Copy-milling. HAYES ENGINEERS (LEEDS) Ltd. Aug. 30, 1957 [Sept. 10, 1956], No. 27599/56. Class 83 (3). An hydraulic control valve unit comprises a tracer mounting element 6 bearing on at least one valve 21, and having an annular flange 10 interposed between ball bearings 13. Movement of the element is limited by a screwed collar 14 adjusted by graduated means 17. The top of the element is biased by spring means 22 against the valve 21, there being a similar valve at right angles thereto, also with a biasing spring. The unit is manually operated, and may have a hand control 25 connected to the upper or lower end of the element 6. The stylus is of the same diameter as the tool.
Patent GB-198285-A (GB)
Title: Improvements in and connected with paint and similar brushes
IPC: A46B9/08
Filed: 1922-10-14
Abstract: 198,285. Morier & Co., Ltd., W., and Simpson, W. Oct. 14, 1922. Bristles, bridles for.-A paint or like brush is provided with a bridle k stretched round the bristles e, the bridle being formed with an upper set of eyelet holes m, m<1>, for engagement with pins or like fasteners q carried by a detachable member p disposed within the bristles, and a lower set l, l<1>, l<2> for engagement with pins g on holders secured to the brush handle. The bridle k is retained in the folded position by means of a press-button o and a spring stud n. The holders, which are secured by pins to an extension b of the handles, are provided each with a projection adapted to engage the top coil of the wire binding d to prevent the wire from slipping upwardly. Where a ferrule is used instead of the wire binding, holders f of the form shown in Fig. 5 are employed.
Patent GB-247670-A (GB)
Title: Improvements in or relating to switch plates
IPC: H02G3/18
Filed: 1924-11-22
Abstract: 247,670. Tucker, J. B. Nov. 22, 1924. Bases.-The insulating- base a of an electric switch is sunk up to its flange a<1> in the aperture b' of a base-plate or box cover b and is secured by an independent bridge or clamp c of channel or trough formation secured to the base by screws d and bearing against the under face of the plate. The clamp c is slightly yielding and may be located by engaging pairs of projections b<2> or slots formed on or in the plate b. The screws d may be used to secure the tumbler bridge to the base. The clamp c may consist of a shallow cup member.
Patent GB-173844-A (GB)
Title: Power knife suitable for cutting sugar cane
IPC: A01D45/10
Filed: 1920-10-04
Abstract: 173,844. Symons, C. J. D. Oct. 4, 1920. Circular-saw machines. - Cutting-apparatus suitable for cutting and topping sugar cane, sisal, &c. consists of a rotary power-driven saw mounted in a part-circular frame 3 provided with a handle 6, a pair of forwardly projecting horns 7, and upper and lower cover plates 4, 5, clearance slots 9 being formed in the sides of the casing. The saw spindle 10 is mounted on ball bearings 11 and on a footstep bearing (not shown). The spindle is driven by bevel gearing from a shaft 15 passing through the handle and connected by a flexible shaft to a motor. In a modification, the casing is mounted on wheels and is provided with a T-shaped handle for directing it, and the cutter is driven by gearing from a turbine mounted on the casing and actuated by compressed air or steam supplied by a hose.