baber/WOPTO huggingface dataset:
Patent GB-670943-A (GB)
Title: Improvements in and relating to means for measuring the resistance of alternating current apparatus
IPC: G01R27/02
Filed: 1950-07-13
Abstract: 670,943. Bridge circuits. BRITISH THOMSON-HOUSTON CO., Ltd. July 13, 1950 [July 26, 1949], No. 17563/50. Class 37. A Wheatstone bridge is arranged for measuring the resistance of an A.C. energized winding, such as a transformer winding or a motor stator winding, without de-energizing the winding. A load such as the stator winding 9, Fig. 1, of a motor is energized from the secondary winding 5 of a transformer 3. A transformer 12 has its primary winding 13 connected across the secondary winding 5 and its secondary winding 16 connected in series with the winding 9 to form one arm of a Wheatstone bridge 18. A blocking capacitor 23 blocks D.C. from the primary winding 13. The voltage developed in the transformer secondary winding 16 is equal to and 180 degrees out of phase with the voltage across the winding 9 so that no A.C. voltage appears across the terminals 19, 21 of the bridge, which measures the resistance of the load winding 9 and transformer secondary winding 16. The resistance of the winding 16 is measured in advance, so that the bridge 18 can be calibrated to read the resistance of the winding 9 directly. A double-pole switch 25 may be provided for connecting the transformer windings 13, 16 when a measurement is to be made. In a modification, Fig. 3, a low-pass filter circuit 32 comprising a series connected reactance 33 and filter capacitor 34 ,is employed instead of the transformer 12, the resonant frequency, of the filter circuit being below the frequency of the energizing voltage. Since substantially no voltage appears across the capacitor 34, all the voltage appearing across the terminals 10, 11 of the load winding 9 appears across the reactance 33, so that no A.C. voltage appears across the bridge terminals 19, 21. A capacitor 23 blocks D.C. from the circuit to which the load winding 9 is connected, so that the bridge 18 measures only the resistance of the load winding 9 and the known resistance of the reactor 33. A fuse 36 is provided in series with the filter 32 to protect the circuit. in the event of resonance between the filter capacitor 34 and the load inductance 9. Fig. 4 shows a modification for measuring the resistance of any part 39 of a series of A.C. energized windings 38. The reactance 33 is arranged in series between the side 40 of the winding 39 and the terminal 19 of the bridge 18, the side 41 of the winding 39 being connected directly to the bridge terminal 21 and the filter capacitor 34 being connected across the bridge terminals 19, 21. The circuit of Fig. 1 may also be employed to measure the resistance of part of an A.C. winding.
Patent GB-662107-A (GB)
Title: Improvements in or relating to a feed mechanism for headers or similar machines
IPC: B21F99/00
Filed: 1949-07-04
Abstract: 662,107. Forging bolts, rivets, &c. WATERBURY FARREL FOUNDRY & MACHINE CO. July 4, 1949 [Jan. 11, 1949], No. 17593/49. Class 83 (iv). [Also in Group XXIV] In a bar feed mechanism for nut, bolt and rivet headers and the like in which feed rollers are connected to a driven member which is rotated step-bystep by an oscillating driving member, the means connecting the driven and driving members upon movement of the latter in one direction may be selectively rendered inoperative to permit backward rotation of the rollers. The rollers 56, 57, Fig. 2, are driven by a reciprocating notched spider 39, Fig. 4, having rollers 45 in the notches which engage the inner face of a ring 43 on a collar 43a splined on a shaft 36 carrying the rollers 56. The rollers 45 are yieldingly pressed by spring plungers 47 between sloping faces 42 of the notches and the inner face of the ring 43 so that the ring is driven when the spider oscillates in an anticlockwise direction and is freed when the spider 39 oscillates in the clockwise direction. The second feed roller 57 is driven by a toothed ring 50 attached to the collar 43a and engaging a toothed wheel 51 keyed on a shaft 52 carrying the roller 57. For releasing the drive between the spider 39 and the ring 43 a series of pins 62 projecting into each slot 41 are moved to hold the rollers 42 at the larger end of the slot out of contact with the ring 43. The pins 62 are attached to a ring 60, Figs. 3 and 4, which is rotatably held in a reciprocating collar 35 carrying the spider 39 and is rotated to free the drive by a spindle 63 also mounted in the collar 35 and having an eccentrically disposed pin 65 which engages in a slot 66 in the ring. A slot 67 in the casing 37 of the machine permits oscillation of the spindle about the shaft 36. The spindle 63 may be yieldingly looked in the position for normal feeding of the work by a spring-loaded plunger engaging a flat surface on the spindle and the rotation of the spindle may be limited by a stop 70 engaging a peg 71 projecting from the spindle. The reciprocation of the spider 39 is obtained through a cam 12, Fig. 1, on the machine drive shaft 11 which oscillates a yoke 13 carrying followers 14, 15 in contact with opposite portions of the cam and connected through a link 17 to a lug 18 on a clutch collar 19 which is freely rotatable on a shaft 20. A mating clutch collar 24 splined to the shaft 20 and slidably engageable with the collar 19 by an arm 25 on a lever 26 transmits the rocking motion to the shaft 20 which carries rocker arm 28 having a link 29 pivoted thereto at a pin 30 which may be adjusted along the arm 28 by a screw 31 to vary the throw. The opposite end of the link 29 is pivoted at 33 to lugs 34 on the collar 35 which is loosely mounted on the shaft 36 and carries the spider 39.
Patent GB-828292-A (GB)
Title: Locks
Inventor: SPEGELSTEIN EMANUEL
IPC: E05B65/50
Filed: 1955-06-17
Abstract: 828,292. Locks. SUPER METAL STAMPINGS Ltd. June 15, 1956 [June 17, 1955], No. 17626/55. Class 44 In a lock of the kind in which a locking member 10, Figs. 9 and 11, is enclosed between a sheet metal bolt 7 and a front plate 1 and in which the bolt can be drawn back by a knob 19 against a spring 17 to retract the bolt nose 6 from a hasp member 5 and can be locked in the advanced position by a key inserted through a keyhole in the knob, the locking member 10 is pivoted at 9 to the front plate 1, and movable by the key to alternative positions in one of which it obstructs movement of the bolt, the locking member being retained in each of these positions by the spring 17 which has two limbs 17a, 17b, of which one presses against the locking member and the other presses against the bolt. The pivot 9 is struck-up from the front plate 1 of the lock, and is disposed between the front plate and the bolt 7 as shown in Fig. 11. Rotation of the locking member 10 is limited by lugs 11 thereon engaging the upper and lower edges of an opening 8 in the plate 1. The nose 6 of the bolt is slidable in an opening in a strip 5, bent-up from the plate 1 to form the hasp-receiving opening 4 therein. The bolt is further supported for sliding movement by having holes 21 to receive lugs 20a on the knob 19, which lugs pass through the opening 8 and engage straight edges 8a thereof. Reduced ends 20b of the lugs 20a are bent-over the outer-face of the bolt. The spring 17 is of U-shape and the limb 17a thereof engages the rear edge 18 of the nose 6 whilst the limb 17b engages either an edge 13 of the locking member as shown in Fig. 9, whereby a lug 12 on the member 10 obstructs movement of the bolt to the left, or an edge 14 of the member 10 whereby the lug 12 will be moved out of the path of movement of the bolt. The spring retains the member 10 in either position and the latter is rotated by a key which is passed through an opening in the knob and engages with the lugs 11 the end of the key being centred by engaging in a hole 23 in the bolt.
Patent GB-1490118-A (GB)
Title: Method of and apparatus for forming bales into a tier pattern
IPC: A01D90/08
Filed: 1975-04-29
Abstract: 1490118 Bale-wagons SPERRY RAND CORP 29 April 1975 [24 May 1974] 17691/75 Headings B8C and B8E A bale-wagon has a tier forming table 38, a platform 78 movable from a position along the front of the table where it receives two bales end-to-end in a row from a bale receiving table 18 to a position at the side of the table 38 to arrange the two bales in a row longitudinally of the table 38, the bale receiving table 18 feeding subsequent pairs of bales transversely on to the table 38 to form transverse rows of bales abutting on to the longitudinally side of the row on the platform. When a tier is assembled on the table 38 the rearmost transverse row on the table actuates trip means (57) to cause an hydraulic cylinder 52 to swing the table to present the tier to a load bed 58. This movement of the table causing another platform (76) similar to the platform 76 to swing to the front of the table from the other side thereof so that the next tier is formed of a pair of bales longitudinally disposed at the opposite side of the tier and transverse rows of bales. A stack of bales is built up on the load bed with odd and even numbered tiers respectively arranged like the first and second tiers. The last tier may have the longitudinal row omitted. An hydraulic cylinder 68 swings the load bed to deposit the stack on the ground with the tiers horizontal. A cross conveyer (39) feeds the bales from a bale pick-up (not described) to the bale-receiving table 18 which has various trip levers to control the swinging of the table by a cylinder 32 to deposit the bales on the table 38. The levers ensure, inter alia, that if a transverse row is composed of two short bales it is positioned in the tier with its other end positioned level with the outer side of the tier. The automatic control devices are described in detail. There is a control preventing both platform (76), 78 being in the bale receiving position at the same time.
Patent GB-377385-A (GB)
Title: Improvements in or relating to the treatment of surfaces of aluminium or aluminium alloys
IPC: C25D11/04
Filed: 1931-06-18
Abstract: The surfaces of articles of aluminium or its alloys are prepared for painting by forming an oxide film by alternating current treatment in an electrolytic bath.
Patent GB-704535-A (GB)
Title: Improvements in and relating to the de-alkylation of aromatic hydrocarbons
Inventor: SAWYER EDWARD WILLIAM
IPC: C07C4/18
Filed: 1950-07-17
Abstract: De-alkylation of monocyclic aromatic hydrocarbons is effected by treating a feed consisting substantially of one or more alkyl-substituted monocyclic aromatic hydrocarbons at 500-600, p preferably 540-570 DEG C., and above 100, preferably 200-300 atm. with hydrogen in the presence of a catalyst comprising the oxides of zinc, molybdenum, and magnesium.  The oxides may be mixed in equimolecular proportions to a paste with water, extruded, and dried at about 130 DEG C.  The alkyl substituent groups may be, for example, methyl, ethyl or propyl.  Toluene, xylenes, ethyl benzene and trimethylbenzenes are specified starting materials, also products obtained from petroleum, coal or coal tar.  Batch or continuous operation may be used and the catalyst regenerated with air or steam as necessary.  The sulphur content of the feed is also reduced.  An example illustrates the conversion of xylenes to benzene and toluene at liquid feed rates of 1 and 2 1./1. catalyst/hr. and 450,500, and 550 DEG C.
Patent GB-716127-A (GB)
Title: Improvements in continuous stationery
IPC: B41L1/32
Filed: 1951-07-28
Abstract: 716,127. Manifolding-webs. WILKES, J. July 28. 1952 [July 28, 1951], No. 17932/51. Class 16 Continuous stationery forming connected sets of business forms comprise copy sheets 1 divided by a line of perforations 3 or otherwise weakened line and having a second line of perforations 4 or other weakened 1 i n e arranged parallel to, and at a distance from, the perforations 3 thus leaving a transverse strip 5 between the perforations, and a carbon or other transfer sheet 2 weakened by a line of perforations opposite to those 3, in the copy sheets which is interleaved between the sheets 1, the sets of sheets being secured together by an adhesive applied to the strips 5. Round, elongated or other shaped holes 6 are formed in the carbon sheet 2 opposite to the strips 5 so that adhesive applied to one of the strips 5 secures two copy sheets 1 and the interleaving carbon sheet 2 together. The superposed webs may be folded along the line 3 into zig-zag formation and the perforations 3 form a weaker line than those 4 to enable a set of forms to be detached together. A semi-circular cut 7 in the carbon sheet 2 forms a notch at the bottom of a detached set so that by gripping the sheets 1 by the finger and thumb the individual sheets -1 are separated along the line 4 whilst the carbon sheet 2 remains attached to the strips 5. Any number of sheets 1 may be superimposed with carbon sheets 2 therebetween and the sheets 1 alone or together with the carbon sheets 2 may have sprockets engaging holes at the sides. In a modification, the carbon sheet has portions which are not treated with carbon and the carbon sheet is fixed by an adhesive on each side of those portions between copy sheets and between the lines of perforations forming the transverse connecting strip.
Patent GB-645636-A (GB)
Title: Improvements in cylindrical breech bolts for hand firearms
IPC: F41A3/22
Filed: 1948-07-03
Abstract: 645,636. Small arms. ZBROJOVKA BRNO, NARODNI PODNIK. July 3, 1948, No. 17951. Convention date, July 3, 1947. [Class 119] To retain the rotary breech bolt 2 in the locked or in both the locked and unlocked position a cross pin 5 on the block engages with a cross groove or grooves 8 in the sliding abutment 7 of the striker spring 6. The striker 3 engages the breech frame 11 to prevent rotation when the breech block is rotated, the pin 5 then moving over the rear surface of the abutment 7 to engage for locking with one or both of the cross grooves 8.
Patent GB-703570-A (GB)
Title: Drop head for motor car body
Inventor: PALMER CHARLES FREDERICK
IPC: B60J7/12
Filed: 1951-07-30
Abstract: 703,570. Folding hoods. SINGER MOTORS, Ltd. April 17, 1952 [July 30, 1951], No. 17965/51. Class 108(1) Hoop sticks 21, 22 are pivoted to a pin 23 at each side of the vehicle body and the pins 23 are upwardly biased by springs 49 which maintain the correct hood tension irrespective of stretching or shrinkage of the hood fabric.
Patent GB-1070115-A (GB)
Title: New 1,2ª‰-methylene steroids and a process for their manufacture
IPC: C07J75/00
Filed: 1966-04-25
Abstract: Novel compounds of the formula <FORM:1070115/C2/1> in which R1 represents a hydrogen atom or an acyl group and R2 represents a hydrogen atom or a saturated or unsaturated hydrocarbon group containing up to 4 carbon atoms, are obtained in a process wherein a compound of the formula <FORM:1070115/C2/2> in which R represents a hydrogen atom or an acyl group, is reduced with the elimination of the oxygen atom in the 3-position and, if desired, in the resulting product any free hydroxyl group is esterified with an acid or with a reactive derivative thereof, or any acyloxy group is hydrolysed and, if desired, the liberated hydroxyl group is re-esterified and/or, if desired, a 17b -hydroxyl-17a -H grouping is converted into the 17b -OR1-17a -R2 grouping in which R2 represents an aliphatic hydrocarbon group.  Pharmaceutical compositions having anabolic activity and ovulation inhibitory activity are administered by intramuscular injection or orally.
Patent GB-1119328-A (GB)
Title: Improved vinyl chloride polymer compositions
Inventor: BLANCHARD ROBERT RAYMOND
IPC: C08L55/02
Filed: 1967-04-19
Abstract: Polyvinylchloride compositions contain 5-25 parts of a resinous impact strength modifier and a chlorinated olefin polymer having a molecular weight of 300-15,000 and containing 18-50% wt. of chemically combined chlorine present in an amount of 0.5-3 parts if containing 18-25% chlorine, of 1-4 parts if containing 25-30% chlorine and 3-10 parts if containing 30-50% chlorine, per 100 parts by weight of P.V.C.  The impact strength modifier may be an acrylic polymer or, preferably, a graft polymer of styrene-acrylonitrile or styrene-isobutylene-acrylonitrile on polybutadiene. The chlorinated olefin polymer is obtained from polyethylene.  Also present may be an alkyl tin mercaptide stabilizer.  The P.V.C. may contain up to 20% wt. of a comonomer.
Patent GB-807215-A (GB)
Title: A process for the manufacture of shaped objects from polyamides or polyurethanes by extrusion, and the objects thus manufactured
IPC: C08L77/00
Filed: 1955-06-09
Abstract: Shaped articles other than thread or films are obtained by mixing polyamides or polyurethanes with not more than 2 per cent of xylenes or homologues thereof having at least two aliphatically bound H atoms substituted by halogens e.g. bischloromethylene m-xylene, bisbromo methylene m-xylene and p-xylylene dichloride; the mixing being continued until the granules are coated with the xylenes, and then extruding the mixture in the usual extruder used for processing plastics (1) granules of a polyamide of sp. viscosity 1.4 obtained by polymerization of e -caprolactam in presence of phosphoric or acetic acid as stabilizer were rolled for 30 seconds with 0.5 per cent by weight of bis chloromethylene m-xylene; the granules were extruded horizontally through a table extruder (2) as in (1) employing bis-p-xylylene dichloride (3) a polyamide obtained by polymerization of e -caprolactam in presence of phosphoric acid is rolled with 0.5 per cent bisbromomethylene m-xylene, 1 per cent cadmium yellow 1 per cent cadmium red and 0.5 per cent carbon black (4) granules of a polyurethane prepared from hexamethylene diisocyanate and 1:4 butane diol were similarly mixed with 0.5 parts by wt. of bisbromomethylene-m-xylene.
Patent GB-335642-A (GB)
Title: Improvements in or relating to electric terminals, couplings, connectors and the like
IPC: H01R13/68
Filed: 1930-04-14
Abstract: 335,642. Belling & Lee, Ltd., and Lee, E. M. April 14, 1930. Plug couplings and connectors. -A coupling or connector having two screw connected parts such as that described in Specifications 329,371 and 329,465 is fitted with an interchangeable fuse, resistance, condenser or other current limiting device, the fuse &c. 9 being located in a sleeve 1 inserted between the body parts 4, 5 that carry the pin 6 and connect the lead 7 thereto. A spring 11 is inserted at one end of the fuse &c. Other forms of coupling to which the device is applied comprise plug couplings with the pin arranged or bent to lie at right angles to the body 1, spade terminals, and connectors having a washer 8 at each end to join two leads.
Patent GB-145771-A (GB)
Title: New or improved means for testing aero engines
IPC: G01M15/02
Filed: 1920-07-02
Abstract: 145,771. Daimler-Motoren-Ges. July 25, 1918, [Convention date]. Testing engines.-Aircraft engines are tested at reduced pressures by drawing the charge through a chamber d with a loaded air-inlet valve and by exhausting into a chamber f in which the pressure is reduced by a fan g.
Patent GB-929595-A (GB)
Title: Improvements in machine tools
IPC: B23Q35/46
Filed: 1961-05-18
Abstract: 929,595. Copying lathes. H. ERNAULTBATIGNOLLES. May 18, 1961 [May 31, 1960], No. 18223/61. Class 83 (3). A copying lathe is provided with a templet support adapted to swing between stop positions, for roughing and finishing operations, which are controlled by the lathe carriage movements. The templet 5, Fig. 1, engaged by a feeler 4 on the tool-slide 3, is carried by brackets swinging with a rod 7. An arm 10, Fig. 2, fixed to the rod 7, carries a flat adapted to engage a fixed stop 11 controlling the finished diameter and an adjustable member 14 which engages the stop surface on the end of a lever 12. The lower end of this lever is adapted to engage an indexible cam 16, the high parts of which control the roughing cut through stop member 14, and the flats on which allow the fixed stop 11 to come into operation for finishing. The cam 16 is slidably keyed on a shaft 17, Fig. 1, and a ratchet-wheel 22 on the cam engages a pawl 23 to prevent reverse rotation. A nut 26 similarly provided with a ratchet and pawl is arranged adjacent the cam and engages by a quick-pitch thread 25 the end of the shaft 17. An adjustable stop 18 is provided on the shaft so that when the lathe carriage 2 approaches the end of the cutting stroke the shaft 17 is moved a distance equal to one-eighth of the pitch of screw 25. A spring 31 returns the shaft which rotates in the nut on this movement and thus rotates the cam 16 an eighth of a turn. Switches 34, 35 are operated by the end of the shaft to stop and reverse the lathe carriage and condition the lathe for the next movements.
Patent GB-696487-A (GB)
Title: Improvements in plastic moulding machines and moulds therefor
IPC: B29C43/00
Filed: 1950-07-21
Abstract: 696,487. Moulding screw-threaded stoppers, &c., from plastic material. A.C.I. PLASTICS PROPRIETARY, Ltd. July 21, 1950 [July 25, 1949], No. 18256/50. Class 87 (ii) A mould for the compression-moulding of thermoplastic and thermosetting materials comprises a ring-shaped member 11, Fig. 3, an upper plug-like member 12 adapted to be inserted into the ring 11 and to abut thereagainst, and a lower female member 10 adapted when moved upwardly to abut against the ring and enclose the lower end thereof. The member 10 is of sufficient capacity to hold the material which is to form the article in the mould. As shown, the article is a screw-threaded container M. The plug 12 is a pressing plunger and has a cylindrical end 12' and a tapered middle portion having in its surface grooves 15 for the escape of gases. The mould parts are carried by heated bolsters 13, 14. To remove the moulded container the plunger is raised and simultaneously the member 10 is lowered, then the ring 11, with the container therein, is moved laterally (position shown). The simultaneous raising of the plunger and lowering of the member 10 simultaneously vents the mould on both sides of the container, and thus prevents deformation of the container by unbalanced gaseous pressure. Fig. 4 shows a modified mould for making a jar closure. In this case the plunger tapers to the end. Fig. 5 shows a machine for making articles, comprising a table 16, which carries two diametrically-opposed rings. The table is oscillated through 180 degrees and back by a hydraulic cylinder 20 and rack and pinion 18, 19 to present the mould parts alternately to plunger 12 and member 10, whereby the article is made, and to revolving plunger 36 and revolving platen 41, whereby the article is unscrewed from ring 11. From the position shown, simultaneously the four hydraulically-operated working elements 12, 36, 10 and 41 move plungers 12 and 36 descending and member 10 and platen 41 ascending; plunger 36 is rotated by worm gearing 40. Then all four elements return simultaneously to the position shown. When the article has been unscrewed it rests on platen 41, whence it is discharged into a shoot. Specifications 696,488 and 696,534 are referred to.
Patent GB-1298421-A (GB)
Title: Improvements in insulator assemblies
IPC: H02G7/20
Filed: 1971-06-01
Abstract: 1298421 Insulator assembly INTERPACE CORP 1 June 1971 [5 June 1970] 18291/71 Heading H2C An insulator assembly attached to a vertical post 10 has a hinge B1, B2 with its axis inclined upwardly and outwardly of the post. The outer end of the hinge has a ceramic insulator element 2 bolted thereto, the insulator carrying a bracket 6 to retain a cable clamp 4. The hinge assembly may be replaced by a fixed pin mounted at an angle to the pole and a continuous sleeve surrounds the pin which replaces sleeves 19 and 21. The insulator element may extend at any required angle with respect to the post.