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1. 发明专利

GB261655A Improvements in control chronometers and the like 未知
公开(公告)号：GB261655A
公开(公告)日：1926-11-25
申请号：GB1706626
申请日：1926-07-07
申请人： THOMAS MERCER , FRANK MERCER
IPC分类号： G04C13/06
摘要： 261,655. Mercer, T., and Mercer, F., (trading as Mercer, T. & F.). July 7,1926. Electric clocks.-In a control chronometer sending intermittent impulses to clocks or to the controls of recording instruments through the medium of an intermittently rotated ratchet wheel a acting upon a springy movable circuitclosing member d, the pallet g on this movable circuit-closing member is located, in the open circuit position, between, but clear of, two ratchet teeth so that each tooth c in wiping past the pallet raises it and momentarily forces it into contact, with a fixed contact member i, also of a springy nature. The ratchet wheel has sixty teeth and rotates once per minute. Means are provided for adjusting the contacts d and i. Specification 202,826 is referred to.

2. 发明专利

GB466679A Improvements relating to electric clocks 未知
公开(公告)号：GB466679A
公开(公告)日：1937-06-02
申请号：GB560636
申请日：1936-02-25
申请人： STUART FRED PHILPOTT , FRANK MERCER
IPC分类号： G04C15/00
摘要： 466,679. Electric clocks. PHILPOTT, S. F., and MERCER, F. Feb. 25,1936, No. 5606. [Class 139] An electric clock system consists of A.C. synchronous-motor secondary clocks a, an A.C. generator b which supplies the secondary clock motors and is driven by a D.C. motor e, a resistance h for regulating the speed of the D.C. motor, a master clock i and a control device j, k; l, m adapted to short circuit the resistance h and consisting of relatively movable parts j, k driven by one of the secondaries a (or by a synchronous motor similar to those of the secondaries) and the master clock respectively. The master may be spring or weight driven. The rotating discs j, k are of insulating material ; disc j has a contact l connected to one end of resistance h and coacting with segment m on disc k connected to the other end of resistance h. The secondaries are arranged to lose slightly when the resistance is shorted. When clocks a lag enough to cause contact l to leave segment m, the resistance h acts to speed up motor e until the clocks a again catch up the master i. An adjustable resistance o, coupled with adjustable resistance p in the field circuit of the alternator b, permits manual control of the speed of motor e.

3. 发明专利

GB296181A Improvements in or connected with electrical re-set driving devices for clocks and other mechanism 未知
公开(公告)号：GB296181A
公开(公告)日：1928-08-30
申请号：GB1997827
申请日：1927-07-27
申请人： THOMAS MERCER , FRANK MERCER
IPC分类号： G04C13/04
摘要： 296,181. Mercer, T., and Mercer, F., (trading as Mercer, T. & F.). July 27, 1927. Electric clocks.-In a master clock including a pendulum a and a gravity arm e which reenergizes the pendulum and closes a secondary clock circuit u, the gravity arm is re-set by an electromagnet m, the action of which is delayed. A pawl b on the pendulum drives a count wheel c having a deep notch d. When the pawl reaches this notch it moves an arm h pivoted at i to release a hook j on the gravity arm e (pivoted at f) which falls and, through its roller k, gives an impulse to a pallet l on the pendulum. At the same time an extension y on the gravity arm closes contacts x , y to complete a circuit through battery t, secondary clocks v, extension q (also on the gravity arm), y , x , auxiliary magnet w. through the frame to m , winding of reset magnet m and line u. The action of the magnet w and spring w keep the armature n of magnet m unattracted in spite of the winding m being energized. As the gravity arm continues to sink the arm y is flexed and contact r closes, short circuiting the auxiliary magnet w. Magnet m now attracts its armature and resets the gravity lever, which thereupon opens the circuit u. In a modification the auxiliary magnet is dispensed with and the circuit u is tapped off the battery t.

4. 发明专利

GB203420A Improvements connected with the rendering of line capacity of telephone cables uniform 未知
公开(公告)号：GB203420A
公开(公告)日：1923-09-13
申请号：GB1644222
申请日：1922-06-14
申请人： BRITISH INSULATED & HELSBY CABLES LTD , FRANK MERCER
IPC分类号： H01B11/12
摘要： 203,420. British Insulated & Helsby Cables, Ltd., and Mercer, F. June 14, 1922. Drawings to Specification. No Patent granted (Sealing fee not paid). Repeating systems; loading circuits to improve transmission.-In order to simplify the construction of the balancing networks used with telephone relays, condensers are inserted in each section of the line, between loading points, across each pair. to bring up to a standard value the mutual capacities between the wires of each pair. Additional condensers may be inserted in each section between the wires if it is desired to balance the plumtom circuit capacities. The condensers for this purpose are made in a suitable range of values, and are sealed in metal containers connected to the lead sheath of the cable.

5. 发明专利

GB202826A Improvements in control chronometers 未知
公开(公告)号：GB202826A
公开(公告)日：1923-08-30
申请号：GB2125722
申请日：1922-08-03
申请人： THOMAS MERCER , FRANK MERCER
IPC分类号： G04C13/04
摘要： 202,826. Mercer, T., and Mercer, F., (trading as Mercer, T. & F.). Aug. 3, 1922. Electric clocks; dials. - In a control chronometer of the kind which sends electric impulses at predetermined intervals to clocks or to the controls of recording-instruments, the electric contacts are so arranged that they are readily accessible without dismounting the chronometer. The terminals g, h, Fig. 1 which are connected to the electric contacts e, f by wires i, j, are secured to a block l of insulating-material attached to the chronometer casing. An opening r in the dial renders the contacts e, f visible and accessible. The fixed contact e is in the form of a pivoted disc provided with a notched head that permits the disc to be turned so as to bring a fresh portion opposite the movable contact f. The teeth of a toothed wheel t secured to the fourth pinion may operate the contact f once a second by engagement with a pin s, or the contact f may be allowed to operate every half-minute by notches t', Fig. 6, cut in the wheel t and adapted to be engaged by a roller u. The stem of the contract f may be adjustably secured on its support v.

6. 发明专利

GB200996A Improvements in and connected with the "elimination of 'overhearing' or 'cross talk'in telephone circuits" 未知
公开(公告)号：GB200996A
公开(公告)日：1923-07-26
申请号：GB1644322
申请日：1922-06-14
申请人： BRITISH INSULATED & HELSBY CABLES LTD , FRANK MERCER , WORSLEY HOLTTUM
IPC分类号： H04B3/34
摘要： 200,996. British Insulated & Helsby Cables, Ltd., Mercer, F., and Holttum, W. June 14, 1922. Drawings to Specification. Induction, preventing.-In order to eliminate cross-talk in a four-wire telephone cable, in each section between adjacent loading points, the capacities between the wires of one pair and the wires of the other pair are balanced, and in addition the earth capacities of the two wires of each pair are balanced. The condensers used are made of suitable standard capacities, and are sealed in metal containers connected to the sheath of the cable so that they are screened.

7. 发明专利

GB390563A Improvements in the manufacture of string 未知
公开(公告)号：GB390563A
公开(公告)日：1933-04-13
申请号：GB3244331
申请日：1931-11-23
申请人： BRITISH INSULATED CABLES LTD , GEORGE HINDE NISBETT , FRANK MERCER
IPC分类号： H01B13/10
摘要： 390,563. String. BRITISH INSULATED CABLES, Ltd., Prescot, NISBETT, G. H., Huyton Hey House, Huyton, both in Lancashire, and MERCER, F., Kinreen, Allerton Drive, Mossley Hill, Liverpool. Nov. 23, 1931, No. 32443. [Class 109.] String for use as insulating material for telephone cables &c. is obtained by passing comparatively thin sheet material formed of fibres felted together between grooved rolls 3, 4. The strip 2 of paper or like is moistened before passing through the rolls 3, 4, and the grooves 21 in the rolls have, on each side, surfaces 24 which are pressed strongly together so that the fibres between those surfaces are forced into the grooves. The product issuing from the rolls is a strip comprising strings 7 connected by fibres. The strip is dried by passing it through a drying chamber 10, or otherwise, and severed into its strings by leading the strings in divergent paths. In the case of finer strings, grooves of larger size may be provided amongst the finer grooves to form larger strings which serve to support the finer strings. Usually the strings are formed without the addition of adhesive or other material to the substance of the paper. For the production of round string of 27 mils, paper of 17 mils thickness would be employed, the density of the paper being increased between 25-30 per cent in conversion from sheet form to string.

8. 发明专利

GB352583A Improvements in electrically operated clocks 未知
公开(公告)号：GB352583A
公开(公告)日：1931-07-16
申请号：GB1258930
申请日：1930-04-23
申请人： THOMAS MERCER , FRANK MERCER
IPC分类号： G04C13/04
摘要： 352,583. Electric clocks. MERCER, T. and MERCER, F., Eywood Road, St. Albans, Hertfordshire. April 23, 1930, No. 12589. [Class 139.] An electric clock system of master and secondaries has means whereby relay mechanism, normally actuated from the master clock to drive the secondaries, is manually disabled for a predetermined time, after which the relay automatically returns to normal conditions. The drawings show a particular secondary clock which has the relaydisabling means and contacts 19, 20 for sending impulses to the remainder of the secondary clocks in series. The secondary shown also has the manual stepping-on switch 21 and the interlocking relay 22 therefor which are described in Specification 352,582; terminals 4, 5 are connected to the master clock ; , 6, 7 to the other secondaries ; and 8, 9, 10 to the electric source. When a normal, time-transmitting impulse from the master reaches the secondary, the magnet 3 is energized and its armature lever 12, 13 closes contacts 19, 20 which thereupon send an impulse to the remaining secondaries. On the return of lever 12, 13 a pawl 15 feeds a ratchet 17 driving the hands of the secondary, as shown. The device for suppressing, for a given time, impulses over the circuit 19, 20 to the other secondaries, comprises an electrically connected clutch 23. The clutch member 24 rotates with the minute spindle 26, driven from wheel 17, and has two holes 34 and a collar 40 upon which presses an electric brush 41. The other clutch member 25 is axially slidable on arbor 26 against spring 47 and has a cross piece 30. 31 carrying pins 32, 33. When the clutch 'is engaged, pins 32, 33.are in holes 34 and a pin.51 on 25 contacts with a spring blade 52 on 24. A collar 36 on member 25 coacts with a brush 37. Hence, when the clutch is engaged, the circuit to the remaining secondaries through contacts 19, 20 is completed through the electric contact members 41, 52, 51, 37. Part 25 is slid to the right, Fig. 4, by depressing a plunger 42 which has an arm 45 and finger 46 for pressing against part 25. The minute arbor 26 has a knob 49, so that after the clutch has been broken (and hence 51, 52 separated), the member 24 may be rotated relatively to 25 ; rotation of the latter is prevented by a finger 48 engaging the wheel 29 on part 25. The hands of the secondary shown are thereby set back the required amount, to correct the difference on board ship, for example, between Greenwich time and the local time. The impulses from the master clock thereafter energize magnet 3 and operate ratchet 15, 17, minute spindle 26 and clutch member 24. No impulse reaches the other secondaries over contacts 19, 20, however, until the pins 32, 33 reach the holes 34 and the clutch engages and recloses contacts 51, 52. Thereafter, all secondaries advance together, showing the same time.

9. 发明专利

GB456213A Improvement in advertising devices, alarm signals and the like 未知
公开(公告)号：GB456213A
公开(公告)日：1936-11-04
申请号：GB1331335
申请日：1935-05-04
申请人： FRANK MERCER , ARTHUR FREDERICK SMITH
IPC分类号： G09F11/34
摘要： 456,213. Burglar and like alarms. MERCER, F., and SMITH, A. F., 16, Cumberland Street, Manchester. May 4, 1935, No. 13313. [Class 118 (i)] [See also Group XVIII] In coin-trays which give an audible or visible alarm by the completion or breaking of an electric circuit when a coin &c. is placed on or removed from a tray, the tray contacts are in the form of two sheets A , A of metal foil laid on a base of strawboard, millboard, wood, plywood, veneer, &c. so that a narrow channel a lies between the edges of the two sheets. The circuit may be through an electric lamp disposed between a reflector and a facia D located either on the tray or at a distance. When an alarm bell is actuated the circuit made or broken by the coin &c. c may be that of a relay.

10. 发明专利

GB352582A Improvements in electrically operated clocks 未知
公开(公告)号：GB352582A
公开(公告)日：1931-07-16
申请号：GB1258830
申请日：1930-04-23
申请人： THOMAS MERCER , FRANK MERCER
IPC分类号： G04C13/04
摘要： 352,582. Electric clocks. MERCER, T. and MERCER, F., Eywood Road, St. Albans, Hertfordshire. April 23, 1930, No. 12588. [Class 139.] An electric clock system of master and secondaries has manual switch mechanism whereby the hands of a particular secondary clock (having the switch) and the hands of other secondaries in series may be stepped-on simultaneously,. there being means for automatically disabling the switch when a normal, time-transmitting impulse passes from the master to the secondary clocks. The invention is particularly for use on ships, for correcting for the difference between Greenwich and local time. The drawings illustrate the particular secondary, carrying the manual switch 12 ; terminals 4. 5 are connected to the master clock; 6, 7 to the other secondaries ; and 8, 9, 10 to the electric source. As described in Specification 352,583, each impulse from the master clock energizes a magnet 3 which attracts its armature 36 to close a circuit at 11 to the other secondaries in series. On the return a pawl 38 feeds a ratchet 37 driving the clock hands. When magnet 3 is energized from the master, a polarized relay 13 in series is also energized. To advance the hands of the secondary clock shown and of the other secondaries, a plunger switch 12, 15, Fig. 3, is operated the necessary number of times to energize the magnet 3 to step-on the secondaries the required amount. When switch 12, 15 is operated, relay 13 is not energized since it is not in circuit. If, however, during the manual switch operation, an impulse from the master energizes magnet 3, then relay 13 is energized and its armature 18 lowers a tongue 21 into a gap 22 in the plunger of the switch 12, so that the latter cannot be operated. This switch comprises a slide 14 with members 23, 24 guided by a fixed bar 16, to which is pivoted at 29 a cam 28 coacting with contact-blades 30, 31. A spring 32 connects slide 14 and cam 28. When the slide is pushed to the left, Fig. 3, against spring 25, lost-motion occurs until the line of spring 32 passes over the dead-centre, whereupon cam 28 closes the blades , 30, .31 ; a. similar lost-motion occurs when the slide 14 returns to the right. These contacts, 30, 31 are in circuit with magnet 3 so that only the latter and not relay 13 is energized.

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